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CN-224229069-U - Locking fastening bolt for automobile transmission part

CN224229069UCN 224229069 UCN224229069 UCN 224229069UCN-224229069-U

Abstract

The utility model belongs to the technical field of automobile parts, and particularly relates to a locking fastening bolt for an automobile transmission part, which comprises a bolt main body, wherein the bolt main body consists of a bolt head, a bolt rod body I, a bolt rod body II and a bolt rod body III from top to bottom, the bolt main body is of an integrated structure, a locking sleeve is inserted and matched on the bolt main body and positioned at the bolt rod body II, a nut is connected with the bolt main body and positioned at the bolt rod body III in a threaded manner, a round hole capable of accommodating the insertion of the bolt rod body II is formed in the locking sleeve, the locking and fastening functions are realized by arranging the bolt rod body I, the bolt rod body II and the bolt rod body III on the bolt main body, locking is realized by utilizing different thread teeth on the bolt rod body II and a thread tooth on the bolt rod body II, and looseness of a bolt in the use process due to external vibration or impact and other conditions is avoided.

Inventors

  • ZOU ZHIBIN

Assignees

  • 江西景隆机械有限公司

Dates

Publication Date
20260512
Application Date
20250617

Claims (7)

  1. 1. A check fastening bolt for an automotive transmission component, comprising: The anti-loosening device comprises a bolt main body (1), wherein the bolt main body (1) consists of a bolt head (2), a bolt body I (3), a bolt body II (4) and a bolt body III (5) from top to bottom, the bolt main body (1) is of an integrated structure, a locking sleeve (6) is inserted and matched on the bolt main body (1) and positioned at the position of the bolt body II (4), a nut (7) is connected on the bolt main body (1) and positioned at the position of the bolt body III (5) in a threaded manner, and a round hole (8) capable of accommodating the insertion of the bolt body II (4) is formed in the locking sleeve (6); The two groups of limiting assemblies are symmetrically arranged and positioned in the anti-loose sleeve (6) and are used for limiting the bolt main body (1); The two annular grooves (9), the two annular grooves (9) are both arranged in the round hole (8) and correspond to the two groups of limiting components, and the limiting components are slidably arranged in the corresponding annular grooves (9).
  2. 2. The check fastening bolt for automotive transmission parts according to claim 1, wherein the limit assembly comprises: Two spacing clamps (11), two spacing clamps (11) are the symmetry setting, and spacing clamp (11) and ring channel (9) sliding fit, the circumference outer wall middle part of spacing clamp (11) is fixed with pull rod (12), and the other end of pull rod (12) runs through ring channel (9) and extends to the external world, circular slot (10) have been seted up in locking sleeve (6) and be located pull rod (12) passing position department, slidable mounting has sliding plate (14) in circular slot (10), one side that spacing clamp (11) was kept away from to sliding plate (14) is provided with spring (15), pull rod (12) and sliding plate (14) fixed connection, pull rod (12) cup joint the cooperation with spring (15).
  3. 3. The locking fastening bolt for a transmission component of an automobile according to claim 2, wherein a knob (13) is fixed to one end of the tie rod (12) located outside.
  4. 4. The locking fastening bolt for an automobile transmission component according to claim 2, wherein the limit clamp (11) has a semi-arc structure, a guiding inclined plane (16) is arranged at the edge of the upper surface of one side of the limit clamp (11) facing the bolt body II (4), and the lower surface of the limit clamp (11) has a planar structure.
  5. 5. The locking fastening bolt for automobile transmission parts according to claim 4, wherein the side of the thread tooth at the second position (4) of the bolt body, which is close to the bolt head (2), is a plane, and the side, which is far from the bolt head (2), is a conical inclined plane.
  6. 6. The anti-loosening fastening bolt for an automobile transmission component according to claim 1, wherein a locking gasket (17) is arranged right below the bolt head (2), the locking gasket (17) is in sleeve joint fit with the first bolt body (3), and anti-skid patterns which are uniformly distributed are arranged on the upper surface and the lower surface of the locking gasket (17).
  7. 7. The anti-loosening fastening bolt for an automobile transmission component according to claim 1, wherein a plurality of elastic pads (18) are arranged right above the anti-loosening sleeve (6), and the elastic pads (18) are in sleeve joint fit with the first bolt body (3).

Description

Locking fastening bolt for automobile transmission part Technical Field The utility model belongs to the technical field of automobile parts, and particularly relates to a locking fastening bolt for an automobile transmission part. Background The automobile transmission system is used as a core component for power transmission, and the stability of the automobile transmission system directly influences the running safety of the whole automobile. The connection of transmission parts (such as a transmission shell and a gear box, a transmission shaft and a universal joint and the like) is generally fastened by a bolt-nut pair, and the connection needs to bear multiple effects of periodic vibration, alternating load and complex environment (such as high temperature, greasy dirt and dust) in the running process of a vehicle, so that extremely high requirements are put forward on the anti-loosening performance of the bolt. The bolt is used as a prefabricated member, the manufacture is simple, the use is convenient, the application range is very wide, but the existing bolt also has a very obvious defect of easy loosening and detachment, and the reliability of the structure needs to be further improved. In view of this, we propose a lockbolt for automotive transmission parts. Disclosure of utility model The utility model aims to provide a locking fastening bolt for an automobile transmission part, which aims to solve the problems in the background technology. In view of the above, the present utility model provides a locking fastening bolt for an automotive transmission part, comprising: The bolt body is of an integrated structure and is provided with a locking sleeve in an inserted and matched mode at the position of the bolt body II, a nut is connected to the bolt body in a threaded mode at the position of the bolt body III, and a round hole capable of accommodating the insertion of the bolt body II is formed in the locking sleeve; The two groups of limiting assemblies are symmetrically arranged and positioned in the anti-loose sleeve and are used for limiting the bolt main body; The two annular grooves are formed in the round holes and correspond to the two groups of limiting components, and the limiting components are slidably mounted in the corresponding annular grooves. In this technical scheme, spacing subassembly includes: The anti-loosening device comprises two limiting hoops, wherein the two limiting hoops are symmetrically arranged, the limiting hoops are in sliding fit with an annular groove, a pull rod is fixed in the middle of the outer circumferential wall of the limiting hoops, the other end of the pull rod penetrates through the annular groove and extends to the outside, a circular groove is formed in the position, where the pull rod penetrates, of the anti-loosening sleeve, a sliding plate is arranged in the circular groove in a sliding mode, a spring is arranged on one side, away from the limiting hoops, of the sliding plate, and the pull rod is fixedly connected with the sliding plate in a sleeved mode. In the technical scheme, one end of the pull rod, which is positioned outside, is fixed with a knob. In this technical scheme, spacing clamp is half arc structure, the upper surface edge of spacing clamp towards bolt body of rod two sides is provided with the guide inclined plane, the lower surface of spacing clamp is planar structure. In the technical scheme, one side of the thread tooth type at the two positions of the bolt body, which is close to the head of the bolt, is a plane, and one side, which is far away from the head of the bolt, is a conical inclined plane. In this technical scheme, be provided with the locking gasket under the bolt head, and locking gasket and the first sleeve joint cooperation of bolt body of rod, locking gasket's upper surface and lower surface all are provided with and are evenly distributed's anti-skidding line. In the technical scheme, a plurality of elastic pads are arranged right above the anti-loose sleeve, and the elastic pads are matched with the bolt body in a sleeved mode. The beneficial effects of the utility model are as follows: 1. According to the anti-loosening fastening bolt for the automobile transmission part, the first bolt rod body, the second bolt rod body and the third bolt rod body are arranged on the bolt main body, the anti-loosening and fastening functions are achieved through different thread teeth on the second bolt rod body and the third bolt rod body, locking is achieved through the thread teeth on the limiting component in the anti-loosening sleeve and the second bolt rod body, and the fact that the bolt is loosened due to external vibration or impact in the use process is avoided. 2. This locking fastening bolt that car transmission parts used through setting up locking gasket and bullet pad, utilizes locking gasket to provide lasting locking force for the bolt main part, guarantees the stability of connection, utilizes the elastic d