CN-121972937-A - Mounting tool for pin shaft

Abstract

The invention provides a pin shaft installation tool, which relates to the technical field of assembly tools and comprises a movable trolley, a supporting frame, a jacking mechanism and a lifting mechanism, wherein the supporting frame is installed on the base in a lifting mode and is used for jacking a pin shaft to be assembled, the supporting frame has a working state and a moving state, the supporting frame is lowered to be in contact with an external supporting body in the working state, and the supporting frame is lifted and fixed on the movable trolley in the moving state. According to the scheme, the pin shaft is stably pressed into the coaxial mounting hole of the frame through the mounting tool, so that the assembly efficiency and the safety of the pin shaft are improved, and the labor intensity of operators is reduced. Meanwhile, when the installation tool is in press-fitting operation, the supporting frame is separated from the movable trolley, the casters of the movable trolley are not pressed, the damage of the trolley casters caused by the press-fitting reaction force is avoided, and the service life of the installation tool is prolonged.

Inventors

• WANG YAOGUANG
• Shao Yunxiang

Assignees

• 三一重型装备有限公司
• 三一智能装备有限公司

Dates

Publication Date

20260505

Application Date

20260330

Claims (10)

1. 1. The utility model provides an installation frock of round pin axle which characterized in that includes: the mobile trolley comprises a base; the support frame is arranged on the base in a lifting manner; the jacking mechanism is arranged on the support frame and used for jacking the pin shaft to be assembled; the support frame has a working state and a moving state, wherein the support frame descends to be in contact with an external support body in the working state, and the support frame ascends and is fixed on the moving trolley in the moving state.
2. 2. The pin shaft mounting fixture of claim 1, wherein the pin shaft mounting fixture further comprises: and the driving assembly is connected with the supporting frame and used for driving the supporting frame to lift.
3. 3. The pin shaft mounting fixture of claim 2, wherein the drive assembly comprises: the fixed support is arranged on the base; the middle part of the connecting rod is rotatably arranged on the fixed support, and one end of the connecting rod is connected with the supporting frame; The locking piece is arranged on the base and can be in locking fit with the other end of the connecting rod, and the locking piece is used for locking and positioning the connecting rod when the supporting frame is in the moving state.
4. 4. A pin shaft mounting fixture according to any one of claims 1 to 3, further comprising: The guide frame is arranged on the base and provided with a preset height direction, and the guide frame is provided with a guide groove extending along the height direction; the number of the guide frames is two, the two guide frames are oppositely arranged on two sides of the base, and the guide grooves on the two guide frames are oppositely arranged; The two sides of the supporting frame are respectively connected with the two guide grooves in a sliding manner.
5. 5. The pin shaft mounting fixture of claim 4, wherein the pin shaft mounting fixture further comprises: The lifting frame is slidably connected with the two guide grooves and is positioned at the upper part of the supporting frame along the height direction; the lifting frame is provided with an installation part for installing the pin shaft, and the jacking mechanism is used for jacking the lifting frame to lift the pin shaft.
6. 6. The pin shaft mounting tool according to claim 5, the mounting fixture of the pin shaft is characterized by further comprising: the cushion block is detachably arranged on the jacking mechanism and is positioned between the jacking mechanism and the lifting frame.
7. 7. The pin shaft mounting fixture of claim 6, wherein the number of the cushion blocks is a plurality of the cushion blocks, and the thicknesses of the plurality of the cushion blocks are the same or different.
8. 8. The pin shaft mounting fixture of claim 6, wherein the guide frame is provided with a plurality of through holes, and the pin shaft mounting fixture further comprises: and the limiting pin is inserted into the through hole and penetrates through the guide groove, is positioned below the cushion block along the height direction and is used for supporting the cushion block after the cushion block falls off.
9. 9. The pin shaft mounting fixture of claim 4, wherein the pin shaft mounting fixture further comprises: and the two ends of the limiting plate are detachably arranged on the two guide frames respectively and used for limiting the jacking mechanism.
10. 10. A pin shaft mounting fixture according to any one of claims 1 to 3, wherein the external support is a ground or a support platform.

Description

Mounting tool for pin shaft Technical Field The application relates to the technical field of assembly tools, in particular to an installation tool of a pin shaft. Background At present, in the manufacturing and assembling process of the articulated vehicle, the front frame and the rear frame are required to be connected through pin shafts, and the pin shafts need to sequentially penetrate through hole positions on a plurality of parts such as mounting holes on the frame, mounting holes of joint bearings of the articulated frame and the like. The cooperation of a plurality of mounting holes of assembly process, axiality is difficult to guarantee, needs the staff to use the bar copper to strike the assembly, and many people strike in turn and consume a large amount of manpowers, and this makes assembly process very difficult, and assembly efficiency is extremely low, and the round pin axle strikes the assembly simultaneously and has the installation hidden danger. Therefore, how to design an installation tool capable of improving the assembly efficiency of the pin shaft, saving labor and being safe becomes a technical problem to be solved currently. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the prior art or related art. To this end, a first aspect of the present invention provides a pin shaft installation tool. In view of the above, a first aspect of the present application provides a pin shaft mounting tool, which includes a mobile cart including a base, a support frame liftably mounted on the base, and a lifting mechanism mounted on the support frame for lifting a pin shaft to be assembled, wherein the support frame has an operating state in which the support frame is lowered to be in contact with an external support body, and a moving state in which the support frame is lifted and fixed on the mobile cart. The mounting fixture of the pin shaft is used for mounting the pin shaft in a mounting hole of a hinge bracket of a hinge car and comprises a movable trolley, a supporting frame and a jacking mechanism. The travelling trolley is provided with a base, and walking casters are arranged below the base and used for realizing integral transportation of the installation tool. The support frame is a rigid bearing frame, can be installed on the base in a lifting manner along the vertical direction, and is provided with a through channel for the support frame to pass through, and the support frame can descend to be in contact with an external support body through the through channel. The lifting mechanism is fixedly arranged on the support frame, the lifting end of the lifting mechanism is upwards arranged and used for upwards lifting the pin shaft to be assembled, when the lifting mechanism upwards lifts the pin shaft, the pin shaft can be stably pressed into the coaxial mounting hole of the frame by means of the gravity of the hinged vehicle frame, the pin shaft can be stably pressed into the coaxial mounting hole of the frame, the traditional copper bar knocking assembly mode is replaced, the assembly efficiency and the safety of the pin shaft are improved, and the labor intensity of operators is reduced. Meanwhile, the supporting frame is configured into a switchable working state and a movable state, when the installation tool is transported, the supporting frame is lifted and fixed on the movable trolley and synchronously moves along with the trolley, the installation tool is not required to be manually moved and lifted, and the labor intensity of operators is further reduced. When the support frame is in the operating condition, the support frame breaks away from with the travelling car, and the whole work load of installation frock is born by the external support body this moment, and the reaction force that the pressure equipment produced directly transmits to the external support body, and the truckle of travelling car is not pressed, avoids the pressure equipment counter-force to damage the truckle of dolly, extension installation frock's life. In the technical scheme, optionally, the mounting tool of the pin shaft further comprises a driving assembly, wherein the driving assembly is connected with the support frame and used for driving the support frame to lift. In the technical scheme, the lifting of the support frame is driven by the driving component so as to realize the rapid switching of the support frame between the working state and the moving state. The operator can control the lifting and the descending of the support frame through operating the driving assembly, the support frame is not required to be manually moved, the labor intensity of the operator is reduced, and the support frame is faster in the state switching process. In the technical scheme, the driving assembly optionally comprises a fixed support, a connecting rod, a locking piece and a locking piece, wherein the fixed support is arranged on the base, the midd