CN-224228987-U - Swing oil cylinder with two-side switching assembly encoder structure for drilling jumbo

CN224228987UCN 224228987 UCN224228987 UCN 224228987UCN-224228987-U

Abstract

The utility model provides a swinging oil cylinder for a rock drilling platform with a two-side switching encoder structure, which is provided with an outer shell, a left rotary shaft sleeve, a right fixed seat plate, a locking shaft and a fixed shaft sleeve, wherein the left rotary shaft sleeve is positioned at the left side in the outer shell, the right fixed seat plate is positioned at the right side of the outer shell, the fixed shaft sleeve is positioned at the outer circumferential position of the locking shaft, the locking shaft can move left and right in a hole on the left section part of the left rotary shaft sleeve and the inside of the fixed shaft sleeve, when the locking shaft moves left, the locking shaft and the left rotary shaft sleeve can be locked and fixed, when the locking shaft moves right, the locking shaft and the fixed shaft sleeve can be locked and fixed, and the axially outer end part of the left rotary shaft sleeve and the right end part of the locking shaft can be connected with an encoder. The encoders can be installed at the two ends of the swing oil cylinder, the encoders can be installed according to actual demands, the rotation angle of the left rotary shaft sleeve can be monitored in real time, and the operation is simple and quick. The utility model can be widely applied to the swinging oil cylinder.

Inventors

LIU YANFENG
WANG YUANXIU
LIU JIAYU
QU TONG
HUANG YUFEI

Assignees

威海中颐液压科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250516

Claims (9)

1. The swing oil cylinder for the drilling trolley with the two-side switching encoder structure is characterized by comprising an outer shell, a left rotary shaft sleeve and a right fixed seat plate, wherein the left rotary shaft sleeve is positioned at the left side of the inner part of the outer shell, the outer circumference of the left rotary shaft sleeve is rotationally and hermetically connected with the inner circumference of the outer shell, the right fixed seat plate is positioned at the right side of the outer shell, and the right fixed seat plate is hermetically and fixedly connected with the outer shell; The left rotary shaft sleeve is of a hollow structure and consists of a left section part of the left rotary shaft sleeve and a right section part of the left rotary shaft sleeve, and the left section part of the left rotary shaft sleeve is provided with an axial penetrating hole; the right fixed seat board is provided with an axial through hole; The inside of the outer shell is also provided with a locking shaft and a fixed shaft sleeve, the fixed shaft sleeve is positioned at the outer circumference of the locking shaft, the left inner circumference of the fixed shaft sleeve is in sealing connection with the middle outer circumference of the locking shaft, the right side of the fixed shaft sleeve is positioned inside a hole on the right fixed seat board, and the right outer circumference of the fixed shaft sleeve is in sealing and fixed connection with the inner circumference of the hole on the right fixed seat board; The leftmost side of the locking shaft is positioned in the hole on the left section part of the left rotary shaft sleeve and is in sealing connection with the inner circumference of the hole, and the rightmost side of the locking shaft is positioned in the hole on the right fixed seat plate; An oil cavity is formed among the outer shell, the left rotary shaft sleeve, the right fixed seat board, the locking shaft and the fixed shaft sleeve; The inside of the outer shell is also provided with a rotary piston, the rotary piston is positioned between the fixed shaft sleeve and the left rotary shaft sleeve, the rotary piston consists of a rotary piston left section part and a rotary piston right section part, the outer circumference of the rotary piston left section part is meshed with the left rotary shaft sleeve right section part, the inner circumference of the rotary piston left section part is in rotary sealing connection with the outer circumference of the locking shaft, which is positioned on the left side of the fixed shaft sleeve, the outer circumference of the rotary piston right section part is in rotary sealing connection with the inner circumference of the outer shell, and the inner circumference of the rotary piston right section part is meshed with the outer circumference of the fixed shaft sleeve; The rotary piston right section divides an oil cavity into a left oil cavity and a right oil cavity, a left oil hole penetrating through the left oil cavity and the right oil cavity is arranged on the outer shell, an inner oil port of the left oil hole is positioned at the leftmost position of the left oil cavity and is communicated with the left oil cavity, a right oil hole penetrating through the right oil hole and the inside oil port of the right oil hole are arranged on the right fixing seat plate, and the inner oil port of the right oil hole is positioned at the rightmost position of the right oil cavity and is communicated with the right oil cavity; The locking shaft can move left and right in the hole on the left section part of the left rotary shaft sleeve and the inside of the fixed shaft sleeve, when the locking shaft moves left and right, the locking shaft and the left rotary shaft sleeve can be locked and fixed, and when the locking shaft moves right and left, the locking shaft and the fixed shaft sleeve can be locked and fixed; the encoder can be connected to the axial outer end of the left rotary shaft sleeve and the right end of the locking shaft.
2. The swing cylinder for the drilling jumbo with the two-side switching assembly encoder structure according to claim 1 is characterized in that a locking ring is arranged between the right section part of the left rotary shaft sleeve and the outer shell, the locking ring is rotationally attached to the outer shell, and the locking ring and the right section part of the left rotary shaft sleeve are mutually locked and fixed through a stop gasket; The inner circumference of the outer shell is positioned between the left section of the left rotary shaft sleeve and the locking ring, a first limiting boss and a second limiting boss are respectively and fixedly arranged, the first limiting boss is axially attached to the left section of the left rotary shaft sleeve, the second limiting boss is axially attached to the locking ring, and axial limiting between the left rotary shaft sleeve and the locking ring and the outer shell is achieved.
3. The swing cylinder for a rock drilling rig with a two-sided switching assembly encoder structure according to claim 1, wherein a left end face of the locking shaft is located at an axially inner side position of an outer adjacent end face of a hole on a left section of the left rotary shaft sleeve, a first locking inclined surface is arranged on an inner circumference of the hole on the left section of the left rotary shaft sleeve, a second locking inclined surface is arranged on a right side position of the first locking inclined surface on an outer circumference of the left side of the locking shaft, and a first locking hole is arranged on a left end of the locking shaft; When the locking shaft is required to be locked and fastened with the left rotary shaft sleeve, the locking block is arranged on the left side of the left section part of the left rotary shaft sleeve, the locking block is provided with an axial penetrating hole, the screw penetrates through the hole on the locking block to be locked with the first locking hole through threads, the locking shaft is pulled to move leftwards under the axial supporting action of the locking block and the left rotary shaft sleeve, a wedge-shaped locking is formed between the first locking inclined surface and the second locking inclined surface, and finally the locking fixation of the locking shaft and the left rotary shaft sleeve is realized.
4. The swing cylinder for a drilling rig with a two-side switching encoder structure according to claim 3, wherein the right end face of the locking shaft is located at an axially inner side position of the outer end face of the fixed shaft sleeve, a fourth locking inclined plane is arranged on the left inner circumference of the fixed shaft sleeve, a third locking inclined plane is arranged on the right outer circumference of the locking shaft at a left side position of the fourth locking inclined plane, and a second locking hole is formed at the right end of the locking shaft; When the locking shaft and the fixed shaft sleeve are required to be locked and fastened, the locking block is arranged on the right side of the fixed shaft sleeve, the locking block penetrates through the hole in the locking block to be locked with the second locking hole through the screw, the locking shaft is pulled to move rightwards under the axial supporting action of the locking block and the fixed shaft sleeve, wedge-shaped locking is formed between the third locking inclined plane and the fourth locking inclined plane, and finally locking and fixing of the locking shaft and the fixed shaft sleeve are realized.
5. The swing cylinder for a drilling rig with a two-sided switching assembly encoder structure according to claim 4, wherein a first limit groove is formed in the left end portion of the locking shaft, a third limit groove is formed in the left end portion of the left rotary shaft sleeve, a limit boss is arranged on the locking block, and when the locking block is locked with the left side of the locking shaft, the limit boss is located in the first limit groove and the third limit groove at the same time and locked with each other; The right side tip of locking axle is equipped with the second spacing groove, the right side tip of fixed axle sleeve is equipped with the spacing groove, and when the right side locking of latch segment and locking axle, spacing boss is located the inside of the spacing groove on the right side tip of second spacing groove and fixed axle sleeve simultaneously, and locks each other.
6. The swing cylinder for the drilling jumbo with the two-side switching assembly encoder structure of claim 5, wherein a plurality of axially distributed grooves are formed in the inner circumference of the outer shell and located on the outer side of the first limiting boss, a dustproof sealing ring, an oil sealing ring and a rotary wear-resistant pad are respectively arranged in the plurality of grooves, the dustproof sealing ring, the oil sealing ring and the rotary wear-resistant pad are sequentially arranged from outside to inside, rotary sealing connection is realized between the left rotary shaft sleeve and the outer shell through the dustproof sealing ring and the oil sealing ring respectively, and rotary support is realized between the left rotary shaft sleeve and the outer shell through the rotary wear-resistant pad; A rotary wear-resisting pad is respectively arranged between the first limiting boss and the left section part of the left rotary shaft sleeve and between the second limiting boss and the locking ring, and axial rotary support is respectively realized between the first limiting boss and the left section part of the left rotary shaft sleeve and between the second limiting boss and the locking ring through the rotary wear-resisting pad; The outer circumference of the locking ring is provided with a groove, a rotary wear-resisting pad is arranged in the groove, and rotary support is realized between the locking ring and the outer shell through the rotary wear-resisting pad; The inner circumference of the hole on the left section of the left rotary shaft sleeve is provided with a plurality of axially distributed grooves, a plurality of dustproof sealing rings and oil liquid sealing rings are respectively arranged in the grooves, the dustproof sealing rings and the oil liquid sealing rings are sequentially arranged from outside to inside, and the locking shaft and the hole on the left section of the left rotary shaft sleeve are mutually sealed through the dustproof sealing rings and the oil liquid sealing rings; The inner circumference of the left section of the rotary piston is provided with a plurality of axially distributed grooves, an oil liquid sealing ring and a rotary wear-resistant pad are respectively arranged in the plurality of grooves, and the inner circumference of the left section of the rotary piston and the outer circumference of the locking shaft are respectively sealed and mutually supported by the oil liquid sealing ring and the rotary wear-resistant pad; the outer circumference of the right section of the rotary piston is provided with a plurality of axially distributed grooves, oil liquid sealing rings and rotary wear-resistant pads are respectively arranged in the grooves, and rotary sealing and rotary support are respectively realized between the outer circumference of the right section of the rotary piston and the inner circumference of the outer shell through the oil liquid sealing rings and the rotary wear-resistant pads; The left inner circumference of the fixed shaft sleeve is provided with a plurality of axially distributed grooves, a plurality of grooves are respectively internally provided with a dustproof sealing ring, an oil sealing ring and a rotary wear-resistant pad, and the left inner circumference of the fixed shaft sleeve and the outer circumference of the locking shaft are respectively sealed and mutually supported by the dustproof sealing ring, the oil sealing ring and the rotary wear-resistant pad.
7. The swing cylinder for a drilling rig with a two-sided switching encoder structure according to claim 6, wherein the outer casing is provided with an oil filling hole and an oil releasing hole which penetrate through the outer casing from inside to outside at positions between the left dustproof sealing ring and the oil sealing ring, and inner oil ports of the oil filling hole and the oil releasing hole are respectively communicated with a left section of the left rotary shaft sleeve.
8. The swing cylinder for a drill jumbo with a two-sided switching assembly encoder structure of claim 7, wherein the oil filling hole and the oil releasing hole are provided in opposition in a circumferential direction on the outer housing, respectively.
9. The swing cylinder for a drilling rig with a two-side switching encoder structure according to claim 1, wherein an oil balance valve is arranged outside the outer shell, and oil outlets of two oil holes on the oil balance valve are respectively communicated with the left oil hole and the right oil hole.

Description

Swing oil cylinder with two-side switching assembly encoder structure for drilling jumbo Technical Field The utility model relates to a swing oil cylinder, in particular to a swing oil cylinder for a drilling platform with a structure of a two-side switching assembly encoder. Background The swing oil cylinder is a driving device which utilizes hydraulic oil to drive an internal mechanical structure, converts hydraulic energy into mechanical energy and realizes the reciprocating swing motion ‌ of an output shaft. In actual use, in order to monitor the rotation angle of the output shaft in real time, an encoder is usually installed on the output shaft, the rotation angle of the output shaft is fed back in real time through the encoder, and the rotation angle is adjusted in real time according to actual demands. However, the swing oil cylinder used by the drilling jumbo has the advantages that only one side of the output shaft is exposed, the encoder can be installed at the side position only, the other side of the output shaft cannot be installed, when the installation interference occurs at the side position, the encoder cannot be installed directly, the limitation is large, the application range is small, and finally the rotation angle of the output shaft cannot be monitored in real time. Disclosure of utility model According to the technical problems, the utility model provides the swing oil cylinder for the drilling platform with the structure of switching and assembling the encoders on two sides, the encoders can be installed at two axial ends of an output shaft of the swing oil cylinder, any one end can be selected for installation according to actual installation requirements, the rotation angle of the output shaft can be monitored in real time, the operation is simple and rapid, the limitation is small, and the application range is wide. Therefore, the technical scheme of the utility model is that the swing oil cylinder for the drilling jumbo with the two-side switching encoder structure is provided with an outer shell, a left rotary shaft sleeve and a right fixed seat board, wherein the left rotary shaft sleeve is positioned at the left side of the inner part of the outer shell, the outer circumference of the left rotary shaft sleeve is in rotary sealing connection with the inner circumference of the outer shell, the right fixed seat board is positioned at the right side of the outer shell, and the right fixed seat board is in sealing and fixed connection with the outer shell; the left rotary shaft sleeve is of a hollow structure, and consists of a left section part of the left rotary shaft sleeve and a right section part of the left rotary shaft sleeve, and the left section part of the left rotary shaft sleeve is provided with an axial penetrating hole; The right fixed seat board is provided with an axial through hole; The inside of the outer shell is also provided with a locking shaft and a fixed shaft sleeve, the fixed shaft sleeve is positioned at the outer circumference of the locking shaft, the left inner circumference of the fixed shaft sleeve is in sealing connection with the outer circumference of the middle position of the locking shaft, the right side of the fixed shaft sleeve is positioned inside a hole on the right fixed seat plate, and the right outer circumference of the fixed shaft sleeve is in sealing and fixed connection with the inner circumference of the hole on the right fixed seat plate; The leftmost side of the locking shaft is positioned in the hole on the left section part of the left rotary shaft sleeve and is in sealing connection with the inner circumference of the hole, and the rightmost side of the locking shaft is positioned in the hole on the right fixed seat plate; an oil cavity is formed among the outer shell, the left rotary shaft sleeve, the right fixed seat board, the locking shaft and the fixed shaft sleeve; The inside of the outer shell is also provided with a rotary piston, the rotary piston is positioned between the fixed shaft sleeve and the left rotary shaft sleeve, the rotary piston consists of a left rotary piston section and a right rotary piston section, the outer circumference of the left rotary piston section is meshed with the right rotary shaft sleeve section on the left side, the inner circumference of the left rotary piston section is in rotary sealing connection with the outer circumference of the locking shaft on the left side of the fixed shaft sleeve, the outer circumference of the right rotary piston section is in rotary sealing connection with the inner circumference of the outer shell, and the inner circumference of the right rotary piston section is meshed with the outer circumference of the fixed shaft sleeve; the rotary piston right section divides the oil cavity into a left oil cavity and a right oil cavity, the outer shell is provided with a left oil hole penetrating inside and outside, an inner side oil port of the left oil hole is pos