CN216805034U

CN216805034U - Scratch-proof clamping jaw for tire dismounting machine

Info

Publication number: CN216805034U
Application number: CN202123370124.3U
Authority: CN
Inventors: 寇侠; 肖勇
Original assignee: Shanghai Carxpert Automobile Engineering Technology Co ltd
Current assignee: Shanghai Carxpert Automobile Engineering Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-24
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to an anti-scratching clamping jaw for a tire dismounting machine, which comprises a standard clamping jaw of the tire dismounting machine. The scratch-proof jack catch still includes a set of steel jack catch, open at the back of steel jack catch have with tear out child machine standard jack catch complex recess, open the one end of steel jack catch have be used for with tear out child machine standard jack catch fixed connection's through-hole, be fixed with an L type cushion on the jack catch terminal surface of steel jack catch, the root of steel jack catch is equipped with the short vertical edge of location rim centre bore assembled position. The L-shaped cushion block made of the hard wear-resistant anti-skidding material is directly contacted with the wheel rim, so that the surface of the wheel is protected, the surface of the wheel rim is prevented from being scratched, and the outgoing quality of the wheel is ensured. The L-shaped cushion blocks only occupy partial areas of the steel jaws to be in contact with the wheel rim so as to control the wear area of the cushion blocks. Only need change L type cushion after wearing and tearing appear, effectively reduce the equipment maintenance cost.

Description

Scratch-proof clamping jaw for tire dismounting machine

Technical Field

The utility model belongs to the technical field of wheel rim fixing devices, and particularly relates to an anti-scratching clamping jaw for a tire dismounting machine.

Background

A tire dismounting machine for mounting and dismounting automobile tires can replace tires for different vehicles such as automobiles, motorcycles or heavy trucks and is a necessary device for wheel production factories, automobile maintenance factories and 4S shops. The wheel needs to be locked on the clamping jaws of the tire dismounting machine before the wheel is dismounted through the tire dismounting machine, and in order to ensure the fixing firmness degree of the wheel, the original standard clamping jaws of the tire dismounting machine are generally made of 45# steel, and when the wheel is locked through the standard clamping jaws, particularly when an aluminum wheel is locked, the inner side and the central surface of a spoke can be scratched. Therefore, it is common to assemble and disassemble aluminum wheels by bolting and sleeving standard jaws on aluminum rim jaws (as shown in fig. 1) to partially protect the aluminum rim.

To the batch assembly line of wheel, aluminium system jack catch can be very fast because of the material is softer, and it is very high to lead to aluminium system jack catch to need frequent change, the cost. If the standard jaw made of 45# steel is still adopted, surface scratches can appear, and the factory quality of a new wheel is influenced. It is therefore necessary to redesign a scratch-resistant jaw for use in a tyre-changing machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an anti-scratch clamping jaw for a tire dismounting machine, which replaces the original all-aluminum clamping jaw.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an anti-scratch jack catch for taking out tyre machine, includes the steel jack catch through-hole of suit on taking out tyre machine standard jack catch through-hole, open fluted through-hole at the back of steel jack catch through-hole, fluted through-hole's shape with take out tyre machine standard jack catch through-hole's front matches, the both sides of fluted through-hole are equipped with the baffle, open on the baffle be used for with take out tyre machine standard jack catch through-hole fixed connection's through-hole, open the front of steel jack catch through-hole has square groove, square groove internal fixation has an L type cushion through-hole, open threaded hole through-hole on the long vertical limit of square groove, be equipped with square chamfer on the short vertical limit through-hole of square groove.

Furthermore, the short edge of the L-shaped cushion block is arc-shaped and is matched with the inner diameter of a central hole of a rim to be positioned, two counter bore through holes for fixedly connecting with the steel clamping jaws are formed in the long edge of the L-shaped cushion block, and the width of the L-shaped cushion block is equal to that of the steel clamping jaws.

Furthermore, the steel clamping jaw is fixedly connected with the L-shaped cushion block through two inner hexagonal socket head cap screws.

Furthermore, the material of steel jack catch is 45# steel, a set of steel jack catch is totally four.

Furthermore, the L-shaped cushion block is made of hard wear-resistant and anti-skid materials, such as polyurethane materials.

Advantageous effects

According to the utility model, the L-shaped cushion block made of the hard wear-resistant anti-slip material is directly contacted with the wheel rim, so that the surface of the wheel is protected, the surface of the wheel rim is prevented from being scratched, and the delivery quality of the wheel is ensured.

The L-shaped cushion block only occupies part of the area of the front surface of the steel claw, which is contacted with the wheel rim, so that the abrasion area of the cushion block is controlled. Only need change L type cushion after wearing and tearing appear, effectively reduce the equipment maintenance cost.

The root of the steel clamping jaw is provided with a short longitudinal edge which is opposite to the long edge of the L-shaped cushion block, so that the rim part is only contacted with the L-shaped cushion block when the clamping jaw works.

Drawings

Fig. 1 is a perspective view of an aluminum rim jaw of an original design.

Fig. 2 is a cross-sectional view of the working state of a scratch-proof claw for a tire dismounting machine.

Fig. 3 is a front and back perspective view of the steel pawl of fig. 2.

Fig. 4 is a perspective view of the L-shaped spacer of fig. 2.

Wherein, 1-wheel rim; 2-L-shaped cushion blocks; 3-steel claws; 4-removing the standard claw of the tyre machine; 5-a groove; 6-through holes; 7-short longitudinal edge; 8-a threaded hole; 9-short side; 10-long side; 11-counterbore through hole.

Like reference symbols in the various drawings indicate like elements.

Detailed Description

The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

As shown in figure 2, the utility model relates to an anti-scratch claw for a tire dismounting machine, which comprises a steel claw 3 sleeved on a standard claw 4 of the tire dismounting machine, and the standard claw 4 of the tire dismounting machine. The steel claws 3 are made of 45# steel, and the number of the steel claws 3 is generally equal to the number of the standard claws 4 on the tire removing machine, and the number of the steel claws 3 is 4 in the embodiment.

As shown in fig. 3, a groove 5 is formed in the back of the steel claw 3, the shape of the groove 5 is matched with the front face of the tire dismounting machine standard claw 4, baffles are arranged on two sides of the groove 5, a through hole 6 for fixedly connecting the baffle with the tire dismounting machine standard claw 4 is formed in each baffle, and a threaded hole 8 is formed in the long longitudinal edge of each square groove. The steel claw 3 is sleeved on the standard claw 4 of the tire dismounting machine and then penetrates through the through hole 6 through a long bolt and a nut to complete fixed connection. The front surface of the steel clamping jaw 3 is provided with a square groove, an L-shaped cushion block 2 is fixed in the square groove, the root of the steel clamping jaw 3 is provided with a short longitudinal edge 7 for positioning the assembling position of the central hole of the rim 1, the short longitudinal edge 7 is parallel and opposite to the long edge 10 of the L-shaped cushion block 2, and the short longitudinal edge 7 is provided with a chamfer. When the claws are started, if the wheel is positioned and deviated, the wheel can slide into the range of the liner of the L-shaped cushion block 2 along with the chamfer angle of the short longitudinal edge 7 before the claws of the tire dismounting machine completely exert force, and the fact that the part of the rim 1 is only contacted with the L-shaped cushion block 2 when the claws are opened to work is ensured.

As shown in fig. 4, the short side 9 of the L-shaped cushion block 2 is arc-shaped and matched with the inner diameter of the central hole of the rim 1 to be positioned, and the long side 10 of the L-shaped cushion block 2 is provided with two counter bore through holes 11 for fixedly connecting with the steel clamping jaws 3. The steel clamping jaw 3 is fixedly connected with the L-shaped cushion block 2 through two M5x20 hexagon socket head cap screws, and the heads of the hexagon socket head cap screws are lower than the plane of the long edges 10 of the L-shaped cushion block 2. The L-shaped cushion block 2 is made of hard wear-resistant and anti-skid materials such as polyurethane materials. The width of the L-shaped cushion block 2 is equal to that of the steel clamping jaw 3, so that the L-shaped cushion block 2 only occupies the partial area of the front surface of the steel clamping jaw 3, which is in contact with the rim 1, and the abrasion area of the cushion block is controlled. Only need change L type cushion 2 after wearing and tearing appear, effectively reduce the equipment maintenance cost.

In use, a steel claw 3 fully sleeved with an L-shaped cushion block 2 is sleeved on a standard claw 4 of a tyre removing machine of the tyre removing machine, and the steel claw is opened along with the opening of the standard claw 4 of the tyre removing machine. The L-shaped cushion block 2 made of hard wear-resistant and anti-skid materials is directly contacted with the wheel rim 1, so that the surface of the wheel is protected, the surface of the wheel rim 1 is prevented from being scratched, and the outgoing quality of the wheel is ensured.

Claims

1. The utility model provides a scratch-proof jack catch for tearing open child machine, its characterized in that, including suit steel jack catch (3) on tearing open child machine standard jack catch (4), open fluted (5) at the back of steel jack catch (3), the shape of recess (5) with the front of tearing open child machine standard jack catch (4) matches, the both sides of recess (5) are equipped with the baffle, open on the baffle be used for with tear open child machine standard jack catch (4) fixed connection's through-hole (6), open fluted in the front of steel jack catch (3), square recess internal fixation has an L type cushion (2), open threaded hole (8) on the long vertical side of square recess, be equipped with the chamfer on the short vertical side (7) of square recess.

2. The scratch-resistant jaw for the tire demounting machine is characterized in that a short edge (9) of the L-shaped cushion block (2) is arc-shaped and is matched with the inner diameter of a central hole of a rim (1) to be positioned, two counter bore through holes (11) for being fixedly connected with the steel jaw (3) are formed in a long edge (10) of the L-shaped cushion block (2), and the width of the L-shaped cushion block (2) is equal to that of the steel jaw (3).

3. The scratch-proof jaw for the tire demounting machine as claimed in claim 1, wherein the steel jaw (3) is fixedly connected with the L-shaped cushion block (2) through two hexagon socket head cap screws.

4. The scratch-proof jaw for the tire dismantling machine as claimed in claim 1, wherein the steel jaw (3) is made of 45# steel, and the number of the steel jaws (3) is four.

5. The scratch-proof claw for the tire dismantling machine as claimed in claim 1, wherein the material of the L-shaped cushion block (2) is a hard wear-resistant and anti-slip material, such as a polyurethane material.