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CN-121990465-A - Crane rotation monitoring device and crane

CN121990465ACN 121990465 ACN121990465 ACN 121990465ACN-121990465-A

Abstract

The application provides a crane rotation monitoring device and a crane, and relates to the technical field of cranes. The device comprises a rotary encoder, a mounting seat and a connecting assembly, wherein the rotary encoder comprises a shell and a detecting piece, the mounting seat is connected with the shell, the connecting assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, the first connecting piece is connected with the detecting piece, the first connecting piece is hinged with the second connecting piece, and the second connecting piece is hinged with the third connecting piece. The shell and the rotating part rotate synchronously, but part of the detecting pieces are pulled by the connecting assembly, so that a relative angle between the part of the detecting pieces and the detecting pieces connected with the shell is formed, and the relative angle is the rotating angle of the rotating part. The second connecting piece compensates the angle deviation of the rotating part and the rotation center shaft through a double-hinged connecting mode, so that the first connecting piece and the third connecting piece always keep coaxial rotation, and the problem that the detection angle of the rotation encoder is inconsistent with the actual rotation angle of the crane due to installation errors is solved.

Inventors

  • CHEN JIANGBO
  • HUANG JINGXUAN
  • ZHANG HANG
  • TANG ZHIZHONG
  • ZHANG FEIFEI
  • ZHANG ZHOU
  • CHEN XIAOJUN
  • SHI YONGJUN

Assignees

  • 中车兰州机车有限公司

Dates

Publication Date
20260508
Application Date
20260324

Claims (10)

  1. 1. A crane rotation monitoring device, comprising: A rotary encoder (100), wherein the rotary encoder (100) comprises a shell (110) and a detection piece (120), part of the detection piece (120) is arranged in the shell (110), and the detection piece (120) is connected with the shell (110); The mounting seat (200) is connected with the shell (110), and the mounting seat (200) is used for being connected with a rotating part of a vehicle body; Coupling assembling (300), coupling assembling (300) include first connecting piece (310), second connecting piece (320) and third connecting piece (330), first connecting piece (310) with detect piece (120) are connected, first connecting piece (310) with second connecting piece (320) are articulated, second connecting piece (320) with third connecting piece (330) are articulated, third connecting piece (330) are used for articulated with gyration center pin (400).
  2. 2. The crane rotation monitoring device according to claim 1, further comprising a first hinge (500), wherein the first connector (310) is hinged to the second connector (320) by the first hinge (500), and wherein the first connector (310) moves relative to the first hinge (500) under the drive of the detecting member (120); The device further comprises a second hinge (510), wherein the second connecting piece (320) is hinged with the third connecting piece (330) through the second hinge (510), and the second connecting piece (320) moves relative to the second hinge (510) under the driving of the first connecting piece (310).
  3. 3. The crane rotation monitoring device according to claim 2, wherein the first connecting piece (310) is further provided with a first mounting hole (311), the second connecting piece (320) is provided with a second mounting hole (321), and the first hinge piece (500) is inserted into the first mounting hole (311) and the second mounting hole (321); The second connecting piece (320) is provided with a third mounting hole (322), the third connecting piece (330) is provided with a fourth mounting hole (331), and the second hinge piece (510) is inserted into the third mounting hole (322) and the fourth mounting hole (331).
  4. 4. A crane rotation monitoring device according to claim 3, wherein the second connecting piece (320) is further provided with a first mounting portion (323), the second mounting hole (321) is arranged on the first mounting portion (323), the first connecting piece (310) is hinged with the first mounting portion (323), and the first connecting piece (310) moves on the first mounting portion (323) relative to the first hinge piece (500) under the driving of the detecting piece (120); The second connecting piece (320) is further provided with a second installation part (324), the third installation hole (322) is formed in the second installation part (324), the third connecting piece (330) is hinged to the second installation part (324), and the second connecting piece (320) is driven by the first connecting piece (310) to move relative to the second hinge piece (510).
  5. 5. The crane rotation monitoring device according to claim 4, wherein the first connection (310) is a first sleeve, the second connection (320) is a second sleeve, and the third connection (330) is a third sleeve.
  6. 6. The crane rotation monitoring device according to any one of claims 1-5, further comprising a power supply member (600), the power supply member (600) being arranged on the first connection member (310), the power supply member (600) being electrically connected to the rotary encoder (100), the power supply member (600) being adapted to power the rotary encoder (100).
  7. 7. The crane rotation monitoring device according to claim 6, wherein the power supply member (600) comprises a rotor (610) and a stator (620), the stator (620) is used for being connected with a power supply, the stator (620) is sleeved on the rotor (610), the rotor (610) can rotate relative to the stator (620), and the rotor (610) is sleeved on the first connecting member (310).
  8. 8. The crane rotation monitoring device according to claim 7, further comprising a support (700), the support (700) being adapted to be connected to a vehicle body, the support (700) being arranged around the first connection member (310), the first connection member (310) being rotatable relative to the support (700), the support (700) being adapted to mount the stator (620).
  9. 9. The crane rotation monitoring device according to claim 8, wherein the support (700) comprises a first support portion (710) and a second support portion (720), the first support portion (710) is sleeved on the first connecting piece (310), the first connecting piece (310) can rotate relative to the first support portion (710), the first support portion (710) is connected with the second support portion (720), and the second support portion (720) is connected with the stator (620).
  10. 10. A crane comprising the vehicle body and the crane swing monitoring device according to any one of claims 1 to 9 connected to the vehicle body.

Description

Crane rotation monitoring device and crane Technical Field The application relates to the technical field of cranes, in particular to a crane rotation monitoring device and a crane. Background In a railway junction station, a crane needs to frequently rotate 360 degrees to finish the hoisting operation of multi-directional cargoes, and a rotation monitoring device is needed to detect the rotation angle of the crane in the rotation process of the crane so as to ensure the safety of the crane in the hoisting operation. In the prior art, the rotation monitoring device comprises an encoder and a coupler, a rotating shaft of the encoder is directly fixed on an output shaft end of a rotation motor or a speed reducer through the rigid coupler, the rotation motor directly drives a rotating part of a crane to rotate, the rotation motor also drives the coupler to rotate at the moment, and finally the rotating shaft of the encoder is driven to rotate, and at the moment, the encoder directly measures the rotating angle of the motor, so that the rotating angle of the rotating part is obtained through reduction ratio conversion, and is indirectly measured. However, the installation deviation between the coupler and the encoder may cause the encoder detection angle to be inconsistent with the actual rotation angle of the crane. Disclosure of Invention The application provides a crane rotation monitoring device and a crane, which are used for solving the problem that a detection angle is inconsistent with an actual rotation angle of the crane. In one aspect, the present application provides a crane rotation monitoring device, comprising: the rotary encoder comprises a shell and a detection piece, part of the detection piece is arranged in the shell, and the detection piece is connected with the shell; the mounting seat is connected with the detection piece and is used for being connected with the rotating part; The connecting assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, wherein the first connecting piece is connected with the detecting piece, the first connecting piece is hinged to the second connecting piece, the second connecting piece is hinged to the third connecting piece, and the third connecting piece is used for being connected with a rotation central shaft. In one possible implementation manner, the crane rotation monitoring device provided by the application further comprises a first hinge member, wherein the first connecting member is hinged with the second connecting member through the first hinge member, and the first connecting member moves relative to the first hinge member under the drive of the detecting member; The device further comprises a second hinge part, wherein the second connecting part is hinged with the third connecting part through the second hinge part, and the second connecting part moves relative to the second hinge part under the driving of the first connecting part. In one possible implementation manner, the crane rotation monitoring device provided by the application is characterized in that the first connecting piece is further provided with a first mounting hole, the second connecting piece is provided with a second mounting hole, and the first hinge piece is inserted into the first mounting hole and the second mounting hole; The second connecting piece is provided with a third mounting hole, the third connecting piece is provided with a fourth mounting hole, and the second hinge piece is inserted into the third mounting hole and the fourth mounting hole. In a possible implementation manner, the crane rotation monitoring device provided by the application is characterized in that the second connecting piece is further provided with a first installation part, the second installation hole is formed in the first installation part, the first connecting piece is hinged with the first installation part, and the first connecting piece moves on the first installation part relative to the first hinge piece under the drive of the detection piece; The second connecting piece is further provided with a second installation part, the third installation hole is formed in the second installation part, the third connecting piece is hinged to the second installation part, and the second connecting piece moves relative to the second hinge piece under the driving of the first connecting piece. In one possible implementation manner, the crane rotation monitoring device provided by the application is characterized in that the first connecting piece is a first sleeve, the second connecting piece is a second sleeve, and the third connecting piece is a third sleeve. In one possible implementation manner, the crane rotation monitoring device provided by the application further comprises a power supply piece, wherein the power supply piece is arranged on the first connecting piece and is electrically connected with the rotation encoder, and the power supply