CN223396007U

CN223396007U - Tire clamping mechanism for tire taking-off machine

Info

Publication number: CN223396007U
Application number: CN202422127928.8U
Authority: CN
Inventors: 王全忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-08-30
Filing date: 2024-08-30
Publication date: 2025-09-30
Anticipated expiration: 2034-08-30

Abstract

A tire clamping mechanism for a tire changing machine relates to the field of tire changing machines and includes a center plate with a center hole formed in the middle of the center plate. The center plate is provided with at least three sets of claw mechanisms. A hydraulic cylinder is provided at the bottom of the center plate. The telescopic rod of the hydraulic cylinder passes through the center hole and is connected to a support plate and a downward pressure assembly. The support plate and the downward pressure assembly can drive the claws of the claw mechanism to move horizontally. The utility model adopts a parallelogram mechanism to ensure the stability and clamping force of the claws during horizontal movement; multiple sets of claw mechanisms can clamp the tire more evenly, improving the stability and efficiency of tire changing; the roller design reduces friction, making the claw mechanism move more smoothly; at the same time, the design of the sleeve and multiple connecting rods makes the downward force more uniform.

Description

Tire clamping mechanism for tire taking-off machine

Technical Field

The utility model relates to the technical field of tire taking-off machines, in particular to a tire clamping mechanism for a tire taking-off machine.

Background

With the rapid development of the automobile industry, the efficiency and precision requirements of tire maintenance are increasingly improved, and the traditional tire removing mode is difficult to meet the requirements of modern maintenance operation. The vertical tire removing machine is particularly suitable for the disassembly operation of small and medium-sized tires due to the compact structure and convenient operation. However, the conventional vertical tire removing machine has the problems of complex structure and high cost in the design of a tire fixing mechanism.

Taking a tire taking machine disclosed in Chinese patent CN 216153514U as an example, the tire taking machine adopts a tire clamping mechanism, and realizes the stable fixation of tires through the complex cooperation of four groups of clamping jaws and five groups of electric telescopic rods. The application of the plurality of groups of electric telescopic rods not only increases the overall weight and volume of the equipment, but also improves the maintenance difficulty and the failure rate. Furthermore, the complex mechanical structure also implies higher manufacturing costs, which is certainly a not insignificant challenge for modern maintenance enterprises pursuing cost control and efficiency improvement.

Disclosure of utility model

The utility model aims to solve the problems in the background art, and further provides a tire clamping mechanism for a tire taking-off machine.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a take off child tire chucking mechanism for machine, includes a center dish, center dish middle part forms a centre bore, be equipped with at least three group's jack catch mechanisms on the center dish, center dish bottom is equipped with a pneumatic cylinder, the telescopic link of pneumatic cylinder is connected with the bearing dish and pushes down the subassembly after passing the centre bore, the bearing dish can order about jack catch horizontal migration of jack catch mechanism with pushing down the subassembly.

Further, the telescopic rod end is provided with an external thread, an upper fastening nut and a lower fastening nut are connected to the external thread in a threaded manner, and the upper fastening nut and the lower fastening nut are respectively positioned on two sides of the pressing component.

Further, the claw mechanism comprises a base, a first rotating shaft and a second rotating shaft are arranged on the base, the first rotating shaft is arranged at one corner of the triangular plate, a third rotating shaft and a fifth rotating shaft are further arranged on the triangular plate, a front swinging plate is rotatably connected to the second rotating shaft, a fourth rotating shaft is arranged at the end part of the front swinging plate, the third rotating shaft and the fourth rotating shaft are arranged at the bottom of the claw seat, claws are arranged at the top of the claw seat, and idler wheels are arranged on the fifth rotating shaft.

Further, the bottom of the claw seat is provided with a rear connecting plate, and a third rotating shaft is arranged between the two rear connecting plates.

Further, the bottom of the claw seat is provided with a front connecting plate, and a fourth rotating shaft is arranged between the two front connecting plates.

Further, the base, the triangular plate, the front swinging plate and the claw seat form a parallelogram mechanism.

Further, the distance between the first rotating shaft and the second rotating shaft is equal to the distance between the third rotating shaft and the fourth rotating shaft, and the distance between the first rotating shaft and the third rotating shaft is equal to the distance between the second rotating shaft and the fourth rotating shaft.

Further, the pressing component comprises a sleeve, at least three connecting rods are annularly arranged on the sleeve, and pressing rods are arranged at the ends of the connecting rods.

Compared with the prior art, the tire clamping device has the beneficial effects that the parallelogram mechanism is adopted, the stability and clamping force of the clamping jaws during horizontal movement are guaranteed, the multiple groups of clamping jaw mechanisms can clamp tires more uniformly, the stability and efficiency of tire clamping are improved, the hydraulic cylinder provides strong power to enable the clamping jaws to clamp the tires firmly, the friction force is reduced due to the design of the rollers, the clamping jaw mechanisms are smoother during movement, meanwhile, the downward pressure is more uniform due to the design of the sleeve and the multiple connecting rods, and the clamping effect of the clamping jaws is further improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the pressing rod pressed on the connecting shaft between the two rollers;

FIG. 3 is a top view of the hold down assembly;

The device comprises a central disc 1, a central hole 11, a first rotating shaft 101, a second rotating shaft 102, a third rotating shaft 103, a fourth rotating shaft 104, a fifth rotating shaft 105, a2 hydraulic cylinder, a 21-bearing tray, a 22-pressing component, a 221 sleeve, a 222 connecting rod, a 223-pressing rod, a 224 mounting hole, a 23-upper fastening nut, a 24-lower fastening nut, a 3-jaw mechanism, a 31 triangle, a 32-rear connecting plate, a 33-jaw seat, a 34-front connecting plate, 35 jaws, a 36-front swinging plate and 37 rollers.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The utility model will be further described with reference to the accompanying drawings and examples:

As shown in fig. 1-3, a tire clamping mechanism for a tire removing machine comprises a central disc 1, wherein a central hole 11 is formed in the middle of the central disc, the telescopic rod of a hydraulic cylinder can smoothly pass through the central disc, at least three groups of claw mechanisms 3 are arranged on the central disc, the tires can be uniformly clamped by the groups of claw mechanisms, and the stability and the efficiency of tire removing are improved. The bottom of the central disc is provided with a hydraulic cylinder 2 which provides strong power so that the clamping jaws can firmly clamp the tire. The telescopic rod of the hydraulic cylinder penetrates through the central hole and then is connected with the bearing plate 21 and the pressing component 22, and the connecting mode enables the bearing plate and the pressing component to move up and down along with the telescopic rod, so that the clamping jaws are driven to move horizontally. The supporting plate and the pressing-down assembly can drive the clamping jaws of the clamping jaw mechanism to move horizontally.

Further, an external thread is formed at the end of the telescopic rod, an upper fastening nut 23 and a lower fastening nut 24 are connected to the external thread through threads, and the upper fastening nut and the lower fastening nut are respectively located at two sides of the pressing component.

In at least one embodiment, the jaw mechanism includes a base that provides stable support for the entire jaw mechanism. The base is provided with a first rotating shaft 101 and a second rotating shaft 102, the first rotating shaft is arranged at one corner of the triangular plate 31, and the design of the triangular plate enhances the stability of the mechanism and enables the force transmission to be more uniform. The triangular plate is further provided with a third rotating shaft 103 and a fifth rotating shaft 105, the second rotating shaft is rotatably connected with a front swinging plate 36, the end part of the front swinging plate is provided with a fourth rotating shaft 104, the third rotating shaft and the fourth rotating shaft are both arranged at the bottom of the jaw seat 33, the top of the jaw seat is provided with a jaw 35, and the fifth rotating shaft is provided with a roller 37. The friction force is reduced by the design of the roller, so that the jaw mechanism is smoother in motion.

Further, a rear connecting plate 32 is arranged at the bottom of the jaw seat, and a third rotating shaft is arranged between the two rear connecting plates.

Further, a front connecting plate 34 is arranged at the bottom of the jaw seat, and a fourth rotating shaft is arranged between the two front connecting plates.

Further, the base, the triangular plate, the front swinging plate and the claw seat form a parallelogram mechanism. The design of the parallelogram mechanism enables the clamping jaw to be more stable in horizontal movement, and ensures clamping force of the clamping jaw.

The scheme is refined, the distance between the first rotating shaft and the second rotating shaft is equal to the distance between the third rotating shaft and the fourth rotating shaft, and the distance between the first rotating shaft and the third rotating shaft is equal to the distance between the second rotating shaft and the fourth rotating shaft.

In at least one embodiment, the pressing assembly comprises a sleeve 221, at least three connecting rods 222 are annularly arranged on the sleeve, and pressing rods 223 are arranged at the ends of the connecting rods. The design of the pressing rod enables the pressing component to directly act on the roller, so that the clamping jaw is driven to move horizontally.

Further, a mounting hole 224 is formed in the middle of the sleeve for receiving the telescopic rod of the hydraulic cylinder.

The working mode is that firstly, the tire taking-off machine is ensured to be in a stable working state, and the tire needing to be taken off is accurately placed on a claw seat of the claw mechanism. The hydraulic cylinder is started to start working. The telescopic rod of the hydraulic cylinder starts to extend under the hydraulic action and gradually approaches the tire. When the telescopic rod is extended to a certain position, the supporting disk moves to the bottom of the roller, contacts with the roller and gives a vertical upward force to the roller. The roller starts to rotate after being subjected to the force of the supporting tray, and the triangular plate connected with the roller is driven to rotate anticlockwise around the first rotating shaft. Due to the design of the parallelogram mechanism formed by the base, the triangular plate, the front swinging plate and the claw seat, when the triangular plate rotates, the claw can move along the horizontal direction to gradually clamp the hub on the inner wall of the tire, so that the tire is ensured not to move or fall off in the tire taking-off process. After the tire is clamped, other tire stripping components of the tire stripper can be used for tire stripping operation. These assemblies may include strippers or the like for separating the tire from the hub.

After the tire is taken off, when the hub is required to be disassembled, the telescopic rod of the hydraulic cylinder is retracted. The telescopic rod starts to retract under the action of hydraulic pressure and gradually gets away from the tire. When the telescopic rod is retracted to a certain position, a gap exists between the bearing plate and the roller, the roller is not subjected to vertical upward force of the bearing plate any more, and the roller is in a free state. At this time, the pressing rod of the pressing assembly starts to work, presses on the connecting shaft between the two rollers, and gives a downward force to the same. Under the action of the pressing rod, the triangle can rotate clockwise around the first rotating shaft, so that the claw seat and the claw are driven to move together. The clamping claws are driven by the triangular plate to horizontally move towards the direction close to the telescopic rod of the hydraulic cylinder, and gradually loosen the hub, so that the hub is completely separated from the tire. When the claw loosens the hub completely, people can easily take away the hub to carry out subsequent maintenance or replacement work.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A tire clamping mechanism for a tire taking-off machine is characterized by comprising a center plate, wherein a center hole is formed in the middle of the center plate, at least three groups of claw mechanisms are arranged on the center plate, a hydraulic cylinder is arranged at the bottom of the center plate, a supporting plate and a pressing component are connected after telescopic rods of the hydraulic cylinder penetrate through the center hole, the supporting plate and the pressing component can drive claws of the claw mechanisms to move horizontally, the claw mechanisms comprise a base, a first rotating shaft and a second rotating shaft are arranged on the base, the first rotating shaft is arranged at one corner of a triangular plate, a third rotating shaft and a fifth rotating shaft are further arranged on the triangular plate, a front swinging plate is rotatably connected to the second rotating shaft, a fourth rotating shaft is arranged at the end of the front swinging plate, the third rotating shaft and the fourth rotating shaft are all arranged at the bottom of a claw seat, claws are arranged at the top of the claw seat, rollers are arranged on the fifth rotating shaft, a sleeve is arranged on the pressing component, at least three connecting rods are annularly arranged on the sleeve, and the end of each connecting rod is provided with a pressing rod.

2. Tyre gripping mechanism for tyre changing machine according to claim 1, characterized in that the bottom of the jaw seat is provided with a rear connecting plate, between which a third rotation shaft is arranged.

3. Tyre gripping mechanism for tyre changing machine according to claim 1, characterized in that the bottom of the jaw seat is provided with a front connecting plate, between which a fourth rotation shaft is arranged.

4. A tyre gripping mechanism for a tyre changing machine according to any one of claims 1 to 3 wherein the base, triangle, front swinging plate and jaw seat form a parallelogram mechanism.

5. A tire gripping mechanism for a tire changer as claimed in any one of claims 1 to 3, wherein the distance between the first rotation axis and the second rotation axis is equal to the distance between the third rotation axis and the fourth rotation axis, and wherein the distance between the first rotation axis and the third rotation axis is equal to the distance between the second rotation axis and the fourth rotation axis.

6. The tire clamping mechanism for a tire changer as claimed in claim 1, wherein the end of the telescopic rod is formed with an external thread, the external thread is connected with an upper fastening nut and a lower fastening nut by means of an upper thread, and the upper fastening nut and the lower fastening nut are respectively positioned at two sides of the pressing assembly.