CN217292187U

CN217292187U - Transmission shaft detaching tool

Info

Publication number: CN217292187U
Application number: CN202221310362.7U
Authority: CN
Inventors: 王呈永
Original assignee: Shandong Kaifurui Auto Parts Co ltd
Current assignee: Shandong Kaifurui Auto Parts Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-08-26
Anticipated expiration: 2032-05-30

Abstract

The utility model relates to the field of automobile parts, in particular to a transmission shaft dismounting tool, which comprises a main body disc, a fastening bolt, a dismounting top bolt and a multilayer lever, wherein the center of the main body disc is provided with a hollow limiting hole, the outer side of the main body disc is provided with a plurality of threaded holes corresponding to the fastening bolt one by one, the fastening bolt of a brake disc is connected with the main body disc through the threaded hole of the main body disc in a threaded manner, the upper part of the dismounting top bolt slides in the limiting hole of the main body disc in a limiting manner, the bottom of the dismounting top bolt is in contact connection with the spline of a transmission shaft, the multilayer lever is a multi-stage labor-saving lever structure which is sequentially connected in a Z-shaped manner, the bottom of the multilayer lever is fixedly connected with the main body disc, the middle part of the lever at the bottom layer of the multilayer lever is in contact connection with the top of the dismounting top bolt, compared with the traditional dismounting tool using a screw thread matching manner, the device adopts a lever dismounting manner, the feeding amount is large, and the disassembly can be more convenient.

Description

Transmission shaft detaching tool

Technical Field

The utility model relates to an automobile parts field, concretely relates to transmission shaft extracting tool.

Background

The transmission shaft is an important part of a vehicle, the transmission shaft needs to be detached for replacement or maintenance, in the transmission shaft replacement process, a worker usually screws the transmission shaft with a transmission shaft screw in the detachment process, and the transmission shaft is shaken off by strongly knocking the transmission shaft screw with a hammer. However, the method is too violent, the surface of the transmission shaft screw is very easy to damage, and the threaded hole at the head of the transmission shaft is easy to deform, so that the transmission shaft screw cannot be arranged again, and safety accidents are easy to occur.

The patent with the application number of CN201920156030.X discloses a transmission shaft dismounting tool which comprises a fixed disc and a tip cone, wherein a plurality of mounting holes are formed in the fixed disc, and are matched with fastening bolts on a brake disc so as to fix the fixed disc on the brake disc through the fastening bolts; the fixed disc is also provided with a threaded hole which is coaxially arranged with a transmission shaft of the brake disc; the tip cone comprises a screw rod, the screw rod is matched with the threaded hole, the tip cone rotates in the threaded hole through the screw rod and drives the transmission shaft to perform feeding motion along the axial direction of the transmission shaft, however, the dismounting speed of the device is low, the transmission shaft is ejected out due to the screw thread mode, the speed is low, the transmission shaft can be dismounted only after being operated for a plurality of circles, and the dismounting efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transmission shaft extracting tool to the defect that prior art exists.

The technical scheme of the utility model is that:

transmission shaft extracting tool, including main part dish, fastening bolt, dismantlement roof bolt and multilayer lever, the center of main part dish be provided with the spacing hole of fretwork and the outside be provided with a plurality ofly with the screw hole of fastening bolt one-to-one, the brake disc fastening bolt passes through the screw hole of main part dish with the main part dish screw thread is connected, dismantle the upper portion of roof bolt spacing slide in spacing downthehole and bottom are connected with the spline contact of transmission shaft, the multilayer lever is multistage laborsaving lever structure and bottom and main part dish fixed connection that connects gradually according to the zigzag mode, the middle part of the bottom lever of multilayer lever with dismantle the top contact connection of roof bolt, work as when the top lever of multilayer lever pushes down, the bottom lever of multilayer lever pushes down and promotes dismantle the roof bolt motion.

Preferably, the multilayer lever includes bracing piece, pivot support frame, rotation lever and lever link, the pivot support frame is the inside chinese character 'ri' shaped frame structure that is provided with the pivot, the pivot of pivot support frame is located axis one side of pivot support frame and with correspond the rotation lever rotates and is connected, adjacent two the rotation lever passes through the lever link is connected, the bracing piece from the top down connect gradually multilayer pivot support frame and below the main part dish.

Preferably, the rotating lever on the bottom layer is connected with a top block in a rotating mode, and the top block is in contact connection with the top of the dismounting top bolt in a limiting and matching mode through the limiting hole.

Preferably, the ejector block is of an H-shaped structure, the top of the ejector block is rotatably connected with the middle of the rotating lever at the bottom, two sides of the lower portion of the ejector block protrude downwards to form limiting plates, and the lower portion of the ejector block slides in the limiting holes in a limiting mode through the limiting plates.

Preferably, the lower part of main part dish is provided with spacing slide, spacing slide is the limit structure that two arcs are constituteed, the cross section of dismantling the knock pin is the capsule shape, dismantle the arcwall face of knock pin vertical direction with spacing slide sliding connection and vertical direction's plane with limiting plate contact is spacing to be connected.

Preferably, the rotating lever on the uppermost layer is wrapped with elastic rubber.

Compared with the prior art, the utility model, have following advantage:

through the dismantlement mode that adopts the lever, can be safe more swift with transmission shaft and brake disc separation to avoid the incident, and the device compact structure can be applicable to various operations of drawing separation and punching press, owing to used laborsaving lever, so the operation is not hard.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1-main body plate, 11-limiting slide way, 12-limiting hole;

2-fastening bolts;

3, disassembling the top bolt;

4-a multilayer lever, 41-a support rod, 42-a rotating shaft support frame, 43-a rotating lever, 44-a lever connecting rod, 45-a top block and 451-a limiting plate;

5-brake disc.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Example one

Referring to fig. 1, transmission shaft extracting tool compares in the traditional instrument of using screw rod screw-thread fit's mode to dismantle, and this device adopts the dismantlement mode of lever, and the feed volume is big, dismantlement that can be more convenient, and concrete structure includes: the brake disc comprises a main body disc 1, fastening bolts 2, a disassembly top bolt 3 and a multilayer lever 4, wherein a limiting hole 12 is hollowed in the center of the main body disc 1, a plurality of threaded holes are uniformly formed in the periphery of the outer side of the main body disc 1, the threaded holes of the main body disc 1 correspond to the fastening bolts 2 of a brake disc 5 one by one, the fastening bolts 2 are in threaded connection with the main body disc 1 through the threaded holes, the disassembly top bolt 3 can be configured with different lengths according to requirements, in order to facilitate the disassembly work, the upper part of the disassembly top bolt 3 slides in the limiting hole 12 of the main body disc 1 in a limiting way, and the lower part is in contact connection with the spline of the transmission shaft, can dispose extra cylindricality kicking block, multilayer lever 4 is multistage laborsaving lever structure and the bottom and main part dish 1 fixed connection that connects gradually according to the zigzag mode, and the middle part of the bottom lever of multilayer lever 4 and the top of kicking block 45 rotate to be connected, and the kicking block 45 is spacing to slide in spacing hole 12 and the bottom is connected with dismantling 3 contacts of kicking bolt.

Through the dismantlement mode that adopts the lever, can be safe more swift with transmission shaft and brake disc 5 separation to avoid the incident, and the device compact structure can be applicable to various operations of drawing separation and punching press, owing to used laborsaving lever, so the operation is not hard.

Example two

Referring to fig. 1, the same as the first embodiment, except that the multi-layer lever 4 includes a support rod 41, a rotation shaft support 42, a rotation lever 43, a lever link 44 and a top block 45, the rotation shaft support 42 is of a zigzag structure, and the inner link is a rotation shaft, in order to form a structure of a labor-saving lever, the inner rotation shaft of the upper rotation shaft support 42 is deviated to one side, the support rod 41 sequentially connects the multi-layer rotation shaft support 42 and the main body plate 1 from top to bottom, each rotation lever 43 is rotatably connected with the rotation shaft support 42 through a corresponding rotation shaft, the rotation levers 43 of the two adjacent layers are connected through the lever link 44, the middle of the rotation lever 43 of the bottom layer is rotatably connected with the top block 45, and the top block 45 is in limit sliding connection with the limit hole 12 of the main body plate 1.

The setting of pivot is divided into two kinds of modes, one kind is with the position relatively fixed of pivot support frame 42, can guarantee stably, and the other kind is provided with pivot fixed orifices or spout on the pivot support frame 42, and the pivot is through changing the pivot fixed orifices or slide in the spout and change the proportion of lever. The benefit of the lever can be increased by arranging the multilayer lever 4, and a larger lever proportion can be realized in a smaller space, so that the aim of saving labor is fulfilled.

EXAMPLE III

Referring to fig. 1, the same as the second embodiment, except that the lower end surface of the main body plate 1 is provided with a limiting slide 11, and the limiting slide 11 is a limiting structure formed by two arc plates and used for limiting the dismounting top bolt 3 and preventing deviation in the operation process.

The kicking block 45 is H-shaped structure, and the lower part both sides of kicking block 45 are provided with limiting plate 451, and limiting plate 451 and limiting slide 11's arc space have spacing hole 12 adaptation in addition, and the cross section of dismantling the roof bolt 3 is the capsule shape, and the arcwall face of dismantling the vertical direction of roof bolt 3 contacts spacing with limiting plate 451 with limiting slide 11 sliding connection and the plane of vertical direction and is connected, and the rotation lever 43 parcel of the superiors has elastic rubber. The limiting plate 451 is used for limiting the jacking block 45 and preventing the jacking block 45 from deviating.

The working principle is as follows:

1. the staff observes the thickness of brake disc 5 and the degree of depth of spline earlier, then selects the dismantlement apex bolt 3 of correct adaptation according to actual conditions, will dismantle apex bolt 3 and aim at kicking block 45 from the below through spacing slide 11 and insert, then utilizes the spanner to rotate fastening bolt 2 and fix main part dish 1 and brake disc 5.

2. The rotating lever 43 at the top part can reciprocate up and down, and then the rotating lever 43 below the rotating lever is driven to rotate through the lever connecting rod 44 in sequence, and due to the fact that a plurality of labor-saving lever structures are connected in sequence, the effects are achieved, overlapping is achieved, and acting force can be applied to the dismounting top bolt 3 easily through the top block 45.

3. At this time, the brake disc 5 is subjected to two forces, one is a pulling force transmitted from the fastening bolt 2, and the other is spline friction corresponding to the pulling force, and when the pulling force is greater than the friction force, the brake disc 5 is separated, so that the brake disc 5 is separated from the transmission shaft.

The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.

Claims

1. A transmission shaft disassembling tool comprises a main body disc, a fastening bolt, a disassembling top bolt and a multi-layer lever, it is characterized in that the center of the main body disc is provided with a hollow limiting hole, the outer side of the main body disc is provided with a plurality of threaded holes which are in one-to-one correspondence with the fastening bolts, the fastening bolts of the brake disc are in threaded connection with the main body disc through the threaded holes of the main body disc, the upper part of the disassembly top bolt slides in the limit hole in a limiting way, and the bottom of the disassembly top bolt is in contact connection with the spline of the transmission shaft, the multi-layer lever is a multi-stage labor-saving lever structure which is sequentially connected in a Z-shaped manner, the bottom of the multi-layer lever is fixedly connected with the main body disc, the middle part of the lever at the bottommost layer of the multi-layer lever is in contact connection with the top of the disassembly top bolt, when the topmost lever of the multi-layer levers is pressed downwards, the bottommost lever of the multi-layer levers is pressed downwards and pushes the dismounting top bolt to move.

2. The drive shaft removal tool of claim 1, wherein: the multilayer lever includes bracing piece, pivot support frame, rotates lever and lever link, the pivot support frame is the inside character form frame construction that is provided with the pivot, the pivot of pivot support frame is located axis one side of pivot support frame and with correspond the rotation lever rotates and connects, adjacent two it passes through to rotate the lever link is connected, the bracing piece from the top down connects gradually multilayer pivot support frame and below the main part dish.

3. The drive shaft removal tool of claim 2, wherein: to the bottom rotate the lever middle part and rotate and be connected with the kicking block, the kicking block with spacing adaptation in spacing hole and with the top contact of dismantling the knock pin is connected.

4. The drive shaft removal tool of claim 3, wherein: the ejector block is of an H-shaped structure, the top of the ejector block is rotatably connected with the middle of the rotating lever of the bottom layer, two sides of the lower portion of the ejector block protrude downwards to form limiting plates, and the lower portion of the ejector block slides in the limiting holes in a limiting mode through the limiting plates.

5. The drive shaft removal tool of claim 4, wherein: the lower part of main part dish is provided with spacing slide, spacing slide is the limit structure that two arcs are constituteed, the cross section of dismantling the knock pin is the capsule shape, dismantle the arcwall face of knock pin vertical direction with spacing slide sliding connection and vertical direction's plane with limiting plate contact is spacing to be connected.

6. The driveshaft extracting tool of claim 2, wherein: the rotating lever on the uppermost layer is wrapped with elastic rubber.