Automatic locking mechanism of balancing machine

Abstract

The invention provides a balancing machine automatic locking mechanism which comprises a main shaft, a flange plate is arranged on the main shaft, a tire is fixed through the flange plate, a main spring is arranged on the left side of the flange plate, pressure is applied to the flange plate through the main spring, a front end bearing is arranged at the end, close to the flange plate, of the main spring, and a rear end bearing is arranged at the end, away from the flange plate, of the main spring. The front-end bearing and the rear-end bearing are installed on the main shaft, the belt pulley is installed on the rear-end bearing, an ejector rod is arranged in the main shaft and penetrates through the interior of the main shaft and the main spring, and a shaft sleeve is arranged outside the main shaft. A common spring in the market is fixed to the outer circle of a hollow shaft, the telescopic principle of the spring is utilized, an air cylinder or an oil cylinder or an electric cylinder or a lever or the like is used for assisting in generating linear thrust, the tire is automatically locked, and more importantly, the structure is loosened by external force, the tire is clamped through the spring, and the tire freely slides under transmission of a belt, so that the tire can be automatically locked. And data can be captured to achieve the effect of testing the imbalance of the tire.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle tire balancing, and in particular to an automatic locking mechanism of a balancing machine. Background Art

[0002] Tires are important tools in the process of vehicle driving, so the balance of tires is one of the important guarantees for the stable driving of vehicles. At present, for the balance adjustment of vehicle tires, a balancing machine is generally used to detect and adjust the balance of tires. At present, the equipment used for automobile tire balancing in the market is mostly used in tire shops and 4S shops. Most of these balancing machines use quick nuts to manually lock tires, which is time-consuming and labor-intensive, and the quick nuts are easy to wear. Even if there are automatic locking devices, they are imported equipment with complex structures, high prices, and low market penetration. For example, the published patent 2010202122886 discloses an automatic locking spindle of a balancing machine, and a pneumatic locking spindle is used on the automobile dynamic balancing detection equipment. However, this technology has a complex structure and uses pneumatics as a power source, which is costly and still requires manual operation, which cannot reduce labor costs. Therefore, it is particularly important to solve the problem of complex and expensive structure of the locking mechanism of the balancing machine. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic locking mechanism for a balancing machine, which utilizes a relatively common spring on the market, fixed on the outer circle of a hollow shaft, utilizes the expansion and contraction principle of the spring, and is assisted by a cylinder, an oil cylinder, an electric cylinder or a lever to generate a linear thrust, so as to automatically lock the tire. More importantly, this structure is released by an external force, and utilizes a spring to clamp the tire, and through free sliding under the drive of a belt, data can be captured to achieve the effect of testing tire imbalance. It has a high degree of automation, is composed of general components, has a low manufacturing cost, is easy to promote and use, has a low degree of dependence on balancing machine software, and is widely used.

[0004] The present invention provides an automatic locking mechanism for a balancing machine, comprising a main shaft, wherein a flange is arranged on the main shaft, and a tire is fixed by means of the flange. A main spring is arranged on the left side of the flange, and pressure is applied to the flange by means of the main spring. A front end bearing is arranged at one end of the main spring close to the flange, and a rear end bearing is arranged at one end of the main spring away from the flange. The front end bearing and the rear end bearing are mounted on the main shaft, and a pulley is mounted on the rear end bearing. A push rod is arranged inside the main shaft, and the push rod passes through the inside of the main shaft and the main spring, and a sleeve is arranged outside the main shaft.

[0005] A further improvement is that: a secondary spring is arranged in the main shaft on the right side of the flange, a pressing plate is arranged at one end of the secondary spring away from the flange, and a steel ball is arranged on the right side of the pressing plate.

[0006] A further improvement is that a positioning optical axis is arranged at the right end of the main shaft, a spring chuck A is arranged between the positioning optical axis and the main shaft, and a spring chuck B is arranged at the left end of the auxiliary spring.

[0007] A further improvement is that a section of the positioning optical axis is provided with a plug.

[0008] A further improvement is that a retaining ring is provided between the front end bearing and the main spring.

[0009] A further improvement is that a pin is provided at the left end of the main spring, and a hollow groove is provided on the main shaft for inserting the pin.

[0010] A further improvement is that the pulley is fixed by a rear end bearing locking nut and a rear end bearing, and during operation, an external force push rod is used to push the push rod in the main shaft.

[0011] A further improvement is that a front end bearing locking nut is provided on the front end bearing.

[0012] A further improvement is that a locking sleeve is arranged on the periphery of the spring clamp B, and the tire is fixed by a positioning cone block.

[0013] A further improvement is that the shaft sleeve is mounted on the chassis via a mounting bracket.

[0014] The beneficial effects of the present invention are as follows: a relatively common spring on the market is used, which is fixed on the outer circle of a hollow shaft, and the expansion and contraction principle of the spring is used, assisted by a cylinder, an oil cylinder, an electric cylinder or a lever to generate a linear thrust, so as to automatically lock the tire. More importantly, when the external force is released, the structure clamps the tire with the spring, and through free sliding under the drive of the belt, data can be captured to achieve the effect of testing tire imbalance.

[0015] The marble limit device in the front positioning optical axis and the axis center push rod are disassembled and locked at the front end using connecting nuts, which is convenient and easy to use without opening the machine casing and the entire automatic device.

[0016] The wall thickness of the positioning optical axis is increased to 3MM, and the internal positioning steel ball adopts an inner arc positioning structure, which moves left and right and up and down in the groove to achieve positioning and tightening effects, and greatly reduce the manufacturing difficulty.

[0017] The front end bearing uses a bearing locking nut to compress the bearing structure to prevent the bearing from moving, effectively solving the instability of balance.

[0018] The hollow shaft is connected by a piston rod, and the two ends are positioned with wear-resistant sleeves for left and right movement.

[0019] The automatic locking structure of this structure is not only used for locking automobile tires, but also the end gear can be processed on the movable pulley at the tail end of the main shaft. The main shaft can be driven to rotate through the belt by the gear or motor. The mounting bracket can be used to fix the sleeve through different mounting brackets according to different scenarios, and other products can be automatically clamped to realize other functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the installation of the flange and the main spring of the present invention.

[0022] Figure 3 It is a schematic diagram of the installation of the auxiliary spring of the present invention.

[0023] Figure 4 It is a cross-sectional view of the AA-direction positioning optical axis structure of the present invention.

[0024] Among them: 1-main shaft, 2-flange, 3-tire, 4-main spring, 5-front end bearing, 6-rear end bearing, 7-pulley, 8-thrust rod, 9-sleeve, 10-auxiliary spring, 11-pressing piece, 12-steel ball, 13-positioning optical axis, 14-spring chuck A, 15-spring chuck B, 16-plug, 17-retaining ring, 18-pin, 19-rear end bearing locking nut, 20-external force thrust rod, 21-front end bearing locking nut, 22-locking sleeve, 23-positioning cone block, 24-mounting bracket. DETAILED DESCRIPTION

[0025] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0026] like Figure 1-4 As shown, this embodiment provides an automatic locking mechanism for a balancing machine, including: a plug 16, a positioning optical axis 13, a spring chuck A14, a steel ball 12, a main spring 4, a pressing plate 11, a spring chuck B15, a push rod 8, a main shaft 1, a flange 2, a sleeve 9, a front end bearing 5, a retaining ring 17, a secondary spring 10, a rear end bearing 6, a pin 18, a pulley 7, a rear end bearing locking nut 19, a locking sleeve 22, an external force push rod 20, a front end bearing locking nut 21, a car tire 22, a positioning cone block 23, and an installation fixing bracket 24, a total of 24 parts.

[0027] Press the flange 2 onto the main shaft 1, first put the front end bearing locking nut 21 onto the main shaft 1, then install the front end bearing 5 and the retaining ring 17 on the main shaft 1, and then use the press to compress the main spring 4 onto the main shaft 1, and put the push rod 8 into the inside of the main shaft 1, insert the pin 18, the main shaft 1 is hollow and has a groove with a size of 12*60 long, then install the sleeve 9 onto the main shaft 1, and then install the rear end bearing 6 and the pulley 7. At this time, the front end bearing locking nut 21 can be locked, so that under the push of the external force push rod 20, the push rod 8 inside the main shaft 1 is pushed, the main spring 4 makes a telescopic movement on the main shaft 1, and the push rod 8 pushes the front part to move.

[0028] Install the shaft sleeve 9 on the chassis through the mounting bracket 24, lock the positioning optical axis 13 from the front of the flange 2, lock it on the main shaft 1, lock the spring chuck B15 to the top rod 8, and then install the auxiliary spring 10 and the pressing plate 1 in sequence, put the two steel balls 12 and the spring chuck A14, and then cover the plug 16. In this way, a locking mechanism is formed under the push of the top rod 8, and the steel ball 12 slides in the groove of the positioning optical axis 13 and performs up and down positioning movements. When the automobile wheel tire is sleeved on the positioning optical axis 13, its wheel hub is flush with the flange 2. According to the size of the wheel hub hole, a suitable positioning cone block 23 is selected, and the steel ball 12 is used to hook the locking sleeve 22 and move on the positioning optical axis 13, thereby realizing automatic locking of the automobile tire and performing balance test and disassembly functions.

Claims

1. An automatic locking mechanism for a balancing machine, comprising a main shaft (1), wherein the main shaft (1) is provided with a flange (2), and a tire (3) is fixed by means of the flange (2), wherein: A main spring (4) is arranged on the left side of the flange (2), and pressure is applied to the flange (2) through the main spring (4). A front bearing (5) is arranged at one end of the main spring (4) close to the flange (2), and a rear bearing (6) is arranged at one end of the main spring (4) away from the flange (2). The front bearing (5) and the rear bearing (6) are mounted on the main shaft (1), and a pulley (7) is mounted on the rear bearing (6). A push rod (8) is arranged inside the main shaft (1), and the push rod (8) passes through the inside of the main shaft (1) and the main spring (4). A shaft sleeve (9) is arranged outside the main shaft (1).

2. The automatic locking mechanism for a balancing machine according to claim 1, characterized in that: An auxiliary spring (10) is arranged in the main shaft (1) on the right side of the flange (2), a pressing plate (11) is arranged at one end of the auxiliary spring (10) away from the flange (2), and a steel ball (12) is arranged on the right side of the pressing plate (11).

3. The automatic locking mechanism of a balancing machine according to claim 2, characterized in that: A positioning optical axis (13) is arranged at the right end of the main shaft (1), a spring chuck A (14) is arranged between the positioning optical axis (13) and the main shaft (1), and a spring chuck B (15) is arranged at the left end of the auxiliary spring (10).

4. An automatic locking mechanism for a balancing machine as claimed in claim 3, characterized in that: The positioning optical axis (13) is provided with a plug (16) in a section.

5. The automatic locking mechanism for a balancing machine according to claim 1, characterized in that: A retaining ring (17) is provided between the front end bearing (5) and the main spring (4).

6. The automatic locking mechanism for a balancing machine according to claim 1, characterized in that: A pin (18) is provided at the left end of the main spring (4), and a hollow groove is provided on the main shaft (1) for inserting the pin (18).

7. The automatic locking mechanism for a balancing machine according to claim 1, characterized in that: The pulley (7) is fixed by a rear end bearing locking nut (19) and a rear end bearing (6), and during operation, an external force push rod (20) is used to push a push rod (8) inside the main shaft (1).

8. The automatic locking mechanism for a balancing machine according to claim 1, characterized in that: The front end bearing (5) is provided with a front end bearing locking nut (21).

9. The automatic locking mechanism for a balancing machine according to claim 3, characterized in that: A locking sleeve (22) is arranged on the periphery of the spring clamp B (15), and the tire (3) is fixed by a positioning cone block (23).

10. The automatic locking mechanism for a balancing machine according to claim 1, characterized in that: The shaft sleeve (9) is mounted on the chassis via a mounting bracket (24).

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