CN-224229221-U - Main piston box with rotation stopping function and gear shifting executing mechanism

CN224229221UCN 224229221 UCN224229221 UCN 224229221UCN-224229221-U

Abstract

The utility model discloses a piston main box with a rotation stopping function and a gear shifting executing mechanism, which comprise a main box large piston, a gear selecting shifting head, main box piston sealing rings and a magnetic unit, wherein the main box large piston is connected with a main box piston shifting shaft through a rotation stopping structure, the gear selecting shifting head is connected to the end part of the main box piston shifting shaft and is axially perpendicular to the main box piston shifting shaft, the main box piston sealing rings are arranged at two ends of the outer side of the main box large piston, the magnetic unit is arranged in a mounting groove of the outer side of the main box large piston and is positioned between the two main box piston sealing rings, and a main box supporting ring is sleeved on the outer wall of the magnetic unit. The main tank large piston is connected with the main tank piston shifting fork shaft through the rotation stopping structure, the magnetic unit is effectively prevented from rotating relative to the piston rod, the displacement sensor can accurately read the actual displacement value of the piston, erroneous judgment of a controller caused by signal deviation is avoided, the gear shifting executing mechanism is guaranteed to normally execute a gear shifting function, and the stability and the reliability of equipment operation are improved.

Inventors

LIU KEPU
WANG JIARUI
WANG YONG
YIN CHONGYI
PENG LIYIN
BAI NAN

Assignees

陕西法士特齿轮有限责任公司

Dates

Publication Date: 20260512
Application Date: 20250613

Claims (10)

1. A piston main box with a rotation stopping function, comprising: The main box large piston is connected with the main box piston shifting fork shaft through a rotation stopping structure; The gear selecting shifting head is connected to the end part of the main box piston shifting fork shaft and is axially perpendicular to the main box piston shifting fork shaft; the main box piston sealing rings are arranged at two ends of the outer side of the main box large piston; The magnetic unit is arranged in the mounting groove at the outer side of the large piston of the main box and is positioned between the two main box piston sealing rings, and the outer wall of the magnetic unit is sleeved with the main box supporting ring.
2. The piston main box with a rotation stopping function according to claim 1, wherein the rotation stopping structure comprises: the key slot is formed in the inner wall of the large piston of the main box; The pin is arranged at one end of the main box piston shifting fork shaft far away from the gear selecting shifting head and is perpendicular to the axial direction of the main box piston shifting fork shaft, and the pin is movably connected with the key groove.
3. The piston main box with a rotation stopping function according to claim 2, wherein the rotation stopping structure further comprises: The fastener is arranged in the main box large piston, and the end part of the fastener extends to the outside of the main box large piston and is fixedly connected with the main box piston shifting fork shaft.
4. A main piston case with a rotation stopping function according to claim 3, wherein a sealant is provided on one end of the fastener attached to the inner wall of the large piston of the main case.
5. A main piston housing having a rotation stopping function according to claim 3, wherein the fastener is a hexagon socket head cap screw.
6. The piston main case with a rotation stopping function according to claim 1, wherein the magnetic unit is adhered in the installation groove.
7. The main piston housing with anti-rotation function of claim 6, wherein the magnetic unit is a main housing large piston magnet.
8. The main piston housing with the rotation stopping function according to claim 1, wherein the gear selecting shifting head is connected with a main housing piston shifting fork shaft through a spiral elastic pin.
9. The main piston box with the rotation stopping function according to claim 1, wherein the inside of the main box large piston is of a hollow structure, and a main box piston shifting fork shaft is arranged in the hollow structure and axially coincides with the main box large piston.
10. A gear shift actuator comprising a main piston housing having a rotation stopping function according to any one of claims 1 to 9.

Description

Main piston box with rotation stopping function and gear shifting executing mechanism Technical Field The utility model belongs to the technical field of gear shifting executing mechanisms, and particularly relates to a piston main box with a rotation stopping function and a gear shifting executing mechanism. Background In the field of automobiles and related mechanical transmission, the rapid development of intelligent products puts forward higher requirements on the performance of core parts, and a gear shifting executing mechanism is used as a key core part in the intelligent products, so that the performance quality of the gear shifting executing mechanism is directly related to the operation effect of the whole system. The main index for evaluating the performance of the gear shifting executing mechanism covers whether the gear shifting function can be normally executed or not and smoothness during gear shifting, and the correct feedback of the displacement value of the cylinder piston of the gear shifting executing mechanism is a key determining factor for normally executing the gear shifting function. In practical applications, the problem that the actuator cannot engage is common. However, it has been found that many times, the displacement sensor feeds back an erroneous displacement value to the controller, not due to damage to internal parts such as the piston, the solenoid valve, and the like. When the controller receives the wrong displacement signal, the cylinder piston is mistakenly considered to be not successfully moved to the target position, and further the situation of gear engagement failure is caused. The working principle that the displacement sensor obtains the displacement value of the piston is not directly based on the position information of the piston, but the data are collected by sensing the number and the direction of magnetic induction lines generated by magnetic steel on the piston, and then the data are converted into corresponding numerical values to be output. Disclosure of utility model The utility model aims to provide a piston main box with a rotation stopping function and a gear shifting executing mechanism, which are used for solving the technical defect that in the prior art, a displacement value signal is not matched with actual displacement due to relative rotation of a magnet on a piston relative to a piston rod, so that gear shifting failure is caused. In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: in a first aspect, a piston main box with a rotation stopping function is provided, including: The main box large piston is connected with the main box piston shifting fork shaft through a rotation stopping structure; The gear selecting shifting head is connected to the end part of the main box piston shifting fork shaft and is axially perpendicular to the main box piston shifting fork shaft; the main box piston sealing rings are arranged at two ends of the outer side of the main box large piston; The magnetic unit is arranged in the mounting groove at the outer side of the large piston of the main box and is positioned between the two main box piston sealing rings, and the outer wall of the magnetic unit is sleeved with the main box supporting ring. Further, the rotation stopping structure includes: the key slot is formed in the inner wall of the large piston of the main box; The pin is arranged at one end of the main box piston shifting fork shaft far away from the gear selecting shifting head and is perpendicular to the axial direction of the main box piston shifting fork shaft, and the pin is movably connected with the key groove. Further, the rotation stopping structure further includes: The fastener is arranged in the main box large piston, and the end part of the fastener extends to the outside of the main box large piston and is fixedly connected with the main box piston shifting fork shaft. Further, a sealant is arranged at one end of the fastener, which is attached to the inner wall of the large piston of the main box. Further, the fastener is a hexagon socket head cap screw. Further, the magnetic unit is adhered in the mounting groove. Further, the magnetic unit is a main box large piston magnet. Further, the gear selecting shifting head is connected with the main box piston shifting fork shaft through a spiral elastic pin. Further, the inside of the main box large piston is of a hollow structure, and the main box piston shifting fork shaft is arranged in the hollow structure and axially coincides with the main box large piston. In a second aspect, a shift actuator is provided comprising a main piston housing having a rotation stopping function as described above. Compared with the prior art, the utility model has the following beneficial effects: 1. The large piston of the main box is connected with the shifting fork shaft of the piston of the main box through the rotation stopping structure