Manual limiting brake device of tire balancing machine

Abstract

The utility model discloses a manual limiting brake device of a tire balancing machine, which is mounted on a machine body of the tire balancing machine and comprises a first mounting seat mounted on the machine body of the tire balancing machine. And the brake mechanism is used for braking the main shaft of the tire balancing machine. The brake driving mechanism comprises an operating handle, a cam linkage mechanism and an elastic component. And the operating handle is connected with the first mounting seat through a cam linkage mechanism and an elastic component and is used for driving a brake mechanism mounted on the first mounting seat to act. When the operation handle is pressed downwards, the brake driving mechanism drives one end of the brake mechanism to be lifted up and abut against a main shaft of the tire balancing machine, main shaft braking is carried out, and meanwhile the operation handle is limited. And when the operating handle is lifted, the brake driving mechanism drives the brake mechanism to be separated from the main shaft of the tire balancing machine, and the main shaft brake is relieved. Manual limiting braking is achieved through a lever type driving structure, the braking action is simplified, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake devices, in particular to a manual limit brake device for a tire balancing machine. Background Art

[0002] A car tire balancer is a professional auto repair tool that is mainly used to detect and calibrate the imbalance of vehicle tires. If the tires are unbalanced, it will cause the steering lever to shake and the tires to wear unevenly, which will seriously affect the service life of the tires and even cause safety hazards.

[0003] As people's requirements for car driving comfort increase, their requirements for car tire performance are getting higher and higher. As car tires become wider and car driving speeds increase, tire dynamic balance detection becomes particularly important. Tire balancing machines are also used more frequently.

[0004] The manual brake device of the current automobile tire balancing machine does not have a limit function. During the detection process, when the manual brake is applied, the hand needs to be kept on the brake handle to achieve braking. Once the brake handle is out of the hand, the brake will be automatically released. In the actual detection application process, there are many inconveniences.

[0005] Based on the above problems in the prior art, a manual limit brake device is designed to be applied to a tire balancing machine, and the brake handle is automatically limited when braking, which becomes the problem to be solved by the present application. Utility Model Content

[0006] The utility model aims to provide a manual limit brake device for a tire balancing machine, which realizes the brake limit of the brake handle without pressing the brake handle all the time during the braking process.

[0007] In order to solve the above technical problems, the present application provides a manual limit brake device for a tire balancing machine installed on the body of the tire balancing machine, and the device includes a first mounting seat installed on the body of the tire balancing machine. A brake mechanism is installed on the first mounting seat and is used to brake the main shaft of the tire balancing machine. Among them, the brake drive mechanism includes an operating handle, a cam linkage mechanism, and an elastic component arranged in cooperation with the cam linkage mechanism. The operating handle is connected to the first mounting seat through the cam linkage mechanism and the elastic component, and is used to drive the brake mechanism installed on the first mounting seat to operate.

[0008] When the operating handle is pressed down, the brake driving mechanism drives one end of the brake mechanism to lift up and abut against the main shaft of the tire balancing machine to brake the main shaft and limit the operating handle at the same time.

[0009] When the operating handle is lifted, the brake driving mechanism drives the brake mechanism to disengage from the main shaft of the tire balancing machine, and the main shaft brake is released.

[0010] In addition to the above-mentioned technical solutions, this application also makes improvements in the following aspects:

[0011] In some embodiments, the cam linkage mechanism includes a cam and a spring pressure seat arranged below the cam.

[0012] In some embodiments, the spring pressure seat includes a boss and a guide shaft, the boss is coaxially arranged with the guide shaft, the guide shaft is arranged at the lower part of the boss, the elastic member is sleeved on the guide shaft, and one end is abutted against the boss.

[0013] In some embodiments, an arc-shaped groove is provided on the upper portion of the boss, and the cam is installed in a sliding fit with the arc-shaped groove of the boss.

[0014] In some embodiments, the first mounting seat includes a spring mounting seat and a brake pad mounting seat, and the spring mounting seat is arranged on one side of the brake pad mounting seat;

[0015] The spring mounting seat comprises a first mounting plate, a spring limiting groove is arranged on the upper part of the first mounting plate, and one end of the elastic member away from the boss is in contact with the spring limiting groove.

[0016] In some embodiments, a guide sleeve is disposed at the lower portion of the first mounting plate, and the guide sleeve is connected to the spring limiting groove through a guide hole.

[0017] In some embodiments, the brake pad mounting seat includes a connecting portion and a mounting portion, the connecting portion is provided with a shaft sleeve and a fixed shaft, the shaft sleeve is rotatably mounted on the fixed shaft, and the fixed shaft is fixed to the body of the tire balancing machine.

[0018] In some embodiments, the brake mechanism includes a brake pad and a mounting frame for mounting the brake pad, the brake pad is mounted on one end of the mounting portion through the mounting frame, the brake pad and the mounting portion are detachably connected, and the mounting position of the brake pad is adjustable.

[0019] In some embodiments, an ear plate is provided at the other end of the mounting portion, and a tension spring is connected to the ear plate. The tension spring drives the brake pad mounting seat to rotate along the fixed axis to release the spindle brake; a hanging ear is provided at the end of the tension spring away from the ear plate, and the hanging ear is fixed on the body of the tire balancing machine to hook the tension spring.

[0020] In some embodiments, the manual limit brake device for a tire balancing machine further includes a second mounting seat, which is arranged corresponding to the first mounting seat and is mounted on the body of the tire balancing machine for mounting a cam and an operating handle.

[0021] Beneficial effects of the utility model:

[0022] 1. In the present application, the brake drive mechanism is provided with an operating handle, a cam linkage mechanism, and an elastic component. When the operating handle is pressed down, the contact surface between the cam of the cam linkage mechanism and the spring pressure seat serves as a fulcrum, and the compressed spring component exerts an upward force on the spring pressure seat. The operating handle has a downward gravity, and the upward torque of the spring component is always smaller than the downward gravity torque of the operating handle. The handle will remain in a pressed state in the absence of external force, and there is no need for a human hand to be placed on the brake handle all the time, thereby realizing the brake limit of the operating handle, freeing the operator's hands and improving the safety performance of the equipment.

[0023] 2. The present application is designed with a tension spring that cooperates with the brake drive mechanism. The tension spring is linked with the operating handle, the cam linkage mechanism, and the elastic component to realize the braking and releasing of the main shaft brake, meet the braking requirements of the tire balancing machine, can accurately locate the unbalanced position, improve the positioning accuracy, make the operation more convenient, save time and effort, and improve the efficiency of the operation.

[0024] 3. In the present application, the elastic pressure seat is provided with a boss and a guide shaft. When braking, the guide shaft can move up and down along the guide sleeve, avoiding the swing of the spring pressure seat during the downward pressing of the operating handle, improving the stability of braking, and further ensuring the precise positioning of the unbalanced position.

[0025] In summary, this application optimizes the overall structure and utilizes a lever-type locking mechanism to achieve a manual limit brake function, thereby simplifying the braking action of the tire balancing machine spindle during the braking process, improving safety performance, and accurately locating the unbalanced position. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0027] Figure 1 This is a schematic diagram of the overall structure of the manual limit brake device of the tire balancing machine of this application;

[0028] Figure 2 This is a schematic diagram of the assembly structure of the manual limit brake device and the balancing machine body of the tire balancing machine of this application;

[0029] Figure 3 When braking, the manual limit brake device of the tire balancer is used in the state diagram;

[0030] Figure 4 The manual limit brake device usage status diagram of the tire balancer when the brake is automatically released.

[0031] The numbers in the figure are as follows:

[0032] 1. Machine body; 2. First mounting seat; 21. Spring mounting seat; 211. First mounting plate; 22. Brake pad mounting seat; 221. Connecting part; 222. Mounting part; 3. Braking mechanism; 4. Operating handle; 5. Cam; 6. Spring pressure seat; 61. Boss; 611. Arc groove; 62. Guide shaft; 7. Elastic member; 8. Spring limiting groove; 9. Guide sleeve; 10. Bushing; 11. Fixed shaft; 12. Brake pad; 13. Ear plate; 14. Tension spring; 15. Hanging ear; 16. Second mounting seat. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to limit the present application and its application or use. The present application may be implemented in other different forms and is not limited to the embodiments described herein.

[0034] 1. Explanation of Descriptive Terms in This Application

[0035] The embodiments provided in this application in conjunction with the technical solutions are intended to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art. It should be noted that unless otherwise specifically stated in this application, the relative arrangement of components described in these embodiments should be interpreted as merely exemplary, and not as a limitation to the technical solutions of this application.

[0036] If the directional terms such as "upper", "lower", "left", "right", "bottom", "top" etc. are used in this application, they are defined relative to the directions in the drawings and are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These or other directional terms should not be understood as restrictive terms.

[0037] In the present application, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0038] In addition, this application does not discuss in detail the technologies and equipment known to ordinary technicians in the relevant fields, but where appropriate, the technologies and equipment should be considered as part of the specification.

[0039] The application scenario of the present application is mainly based on a car tire balancing machine, and can also be applied to other scenarios according to its functions. Its application scenario is not restricted or limited by the specific embodiments described in the present application.

[0040] 2. The manual brake device of the existing automobile tire balancing machine has no limit function. When manual braking is needed during the detection process, the hand needs to be kept on the brake handle to achieve braking. In the actual detection application process, there are many inconveniences. The present application specifically provides a technical solution to the above problems. The technical solution, working principle and technical effect of the present application are described in detail below in combination with specific embodiments.

[0041] like Figure 2 As shown, this embodiment records a manual limit brake device for a tire balancing machine. When in use, the device is installed on the body 1 of the tire balancing machine. The purpose is to simplify the braking action, realize automatic limit of the brake handle, and accurately locate the unbalanced position.

[0042] like Figure 1 As shown, the manual limit brake device of the tire balancing machine includes a first mounting seat 2, a brake mechanism 3 and a brake drive mechanism. When working, the brake mechanism 3 and the brake drive mechanism need to be installed in coordination with the tension spring 14 arranged on the machine body 1.

[0043] The brake mechanism 3 is a main component of the device and is mounted on the first mounting seat 2. When the brake mechanism 3 brakes, it directly acts on the main shaft to perform braking.

[0044] The brake mechanism 3 includes a brake pad 12 and a mounting frame. The brake pad 12 is mounted on the mounting frame, and the mounting frame is used to adjust the relative installation position of the brake pad 12.

[0045] The brake drive mechanism comprises an operating handle 4, a cam linkage mechanism, and an elastic member 7 arranged in cooperation with the cam linkage mechanism.

[0046] When the operating handle 4 is pressed down, the brake drive mechanism drives one end of the brake mechanism 3 to lift up, and the brake pad 12 abuts against the main shaft of the tire balancing machine. The brake pad 12 fits tightly against the main shaft to brake the main shaft and limit the operating handle 4 at the same time.

[0047] When the operating handle 4 is lifted, with the cooperation of the tension spring 14, the brake drive mechanism drives the brake mechanism 3 to separate from the main shaft of the tire balancing machine, and the main shaft brake is released.

[0048] In order to more clearly understand the technical solution adopted by the present application, the following is a detailed description of the various components constituting the manual limit brake device of the tire balancing machine of the present application, the relationship between the components, and the effects that can be achieved by the main mechanism:

[0049] The first mounting seat 2 serves as a mounting base, and includes a spring mounting seat 21 and a brake pad mounting seat 22 . The spring mounting seat 21 is arranged on one side of the brake pad mounting seat 22 . The spring mounting seat 21 is used to mount the elastic component 7 , and the brake pad mounting seat 22 is used to mount the brake pad 12 .

[0050] As an optimization, the spring mounting seat 21 is provided with a first mounting plate 211 , and a spring limiting groove 8 is provided on the upper part of the first mounting plate 211 . One end of the elastic component 7 abuts against the spring limiting groove 8 , and the spring limiting groove serves to limit the elastic component 7 .

[0051] In order to ensure the stability of braking, a guide sleeve 9 is provided at the lower part of the first mounting plate 211 , and the guide sleeve 9 is connected to the spring limiting groove 8 through a guide hole.

[0052] As a further optimization, the brake pad mounting seat 22 includes a connecting portion 221 and a mounting portion 222. The connecting portion 221 is provided with a sleeve 10 and a fixed shaft 11. The sleeve 10 is rotatably mounted on the fixed shaft 11, and the fixed shaft 11 is fixed to the body 1 of the tire balancing machine.

[0053] The brake pad 12 is mounted on one end of the mounting portion 222 via a mounting frame. The brake pad 12 and the mounting portion 222 are detachably connected, so that the brake pad 12 can be easily replaced after being damaged after long-term use.

[0054] In order to achieve the effect of accurately controlling the unbalanced position, the installation method of the brake pad 12 is designed to be a position-adjustable installation method, and the installation position of the brake pad 12 can be flexibly adjusted to meet different installation requirements.

[0055] A lug plate 13 is provided at the other end of the mounting portion 222 , and a tension spring 14 is connected to the lug plate 13 . The tension spring 14 drives the brake pad mounting seat 22 to rotate along the fixed shaft 11 to release the spindle brake.

[0056] A hanging ear 15 is provided at one end of the tension spring 14 away from the ear plate 13 . The hanging ear 15 is fixed on the body 1 of the tire balancing machine and is used for hooking the tension spring 14 .

[0057] The tension spring 14 is linked with the operating handle 4, the cam linkage mechanism, and the elastic member 7 to realize the braking and releasing of the main shaft, meet the braking requirements of the tire balancing machine, and can accurately locate the unbalanced position.

[0058] The brake drive mechanism is the core component of the device and is used to realize the main shaft braking of the tire balancing machine.

[0059] The braking of the tire balancing machine is achieved through an operating handle. The operating handle 4 is connected to the first mounting seat 2 through a cam linkage mechanism and an elastic member 7, and is used to drive the brake mechanism 3 installed on the first mounting seat 2 to operate.

[0060] The operating handle 4 is a conventional handle, and a rubber sleeve is set on one end of the handle to improve the comfort of holding.

[0061] In addition, in order to facilitate operation, during installation, the pressing end of the handle is arranged outside the body 1.

[0062] The cam linkage mechanism realizes the transmission of power between the operating handle 4 and the elastic member 7, and the cam linkage mechanism includes a cam 5 and a spring pressure seat 6 arranged below the cam 5. The spring pressure seat 6 is arranged in cooperation with the cam 5, and the rotation of the cam 5 can drive the spring pressure seat 6 to move up and down.

[0063] Among them, the spring pressure seat 6 includes a boss 61 and a guide shaft 62. The boss 61 and the guide shaft 62 are coaxial components of an integrated structure. The guide shaft 62 is arranged at the lower part of the boss 61. The elastic component 7 is sleeved on the guide shaft 62, and one end of the spring is in contact with the boss 61.

[0064] The guide shaft 62 can move up and down along the guide hole of the guide sleeve 9, squeeze the elastic member 7, and then drive the brake mechanism 3 to brake or unlock.

[0065] As an optimized design, an arc-shaped groove 611 is provided on the upper part of the boss 61 , and the cam 5 is installed in a sliding fit with the arc-shaped groove 611 on the upper part of the boss 61 .

[0066] The upper part of the boss 61 adopts the structural design of the above-mentioned arc-shaped groove 611, which realizes the positioning of the installation position of the cam 5 and the boss 61, and plays a role of bidirectional limiting on the cam 5 and the boss 61, thereby preventing the cam 5 and the boss 61 from swinging relative to each other during the downward pressing of the operating handle 4, thereby affecting the positioning accuracy of the unbalanced position.

[0067] As a further optimization solution, the manual limit brake device of the tire balancing machine is further provided with a second mounting seat 16, which is arranged corresponding to the first mounting seat and is installed on the body of the tire balancing machine for installing a cam and an operating handle.

[0068] The design of the second mounting seat is intended to facilitate adjustment of the mounting positions of the cam and the operating handle to achieve precise positioning.

[0069] Combined with the above description of the structure and technical effects, the working principle of the manual limit brake device of a tire balancing machine in the present application is as follows:

[0070] like Figure 3As shown, when the operating handle 4 is pressed down, the cam 5 is driven to rotate around the rotating shaft. At this time, the distance from the center of the rotating shaft to the spring pressure seat 6 becomes longer, and the spring is compressed. When the pressure applied by the spring to the brake pad mounting seat 22 is greater than the tension of the tension spring 14 applied to the brake pad mounting seat 22, the brake pad mounting seat 22 will rotate around the fixed shaft 11, and the brake pad 12 presses the pulley to achieve spindle braking.

[0071] like Figure 4 As shown, when the operating handle 4 is lifted, the cam 5 is driven to rotate around the rotating shaft. At this time, the distance from the center of the rotating shaft to the spring pressure seat 6 becomes shorter, and the spring is stretched. When the pressure applied by the spring to the brake pad mounting seat 22 is less than the tension of the tension spring 14 applied to the brake pad mounting seat 22, the brake pad mounting seat 22 will rotate around the fixed shaft 11, and the brake pad 12 will disengage from the pulley to release the main shaft brake.

[0072] In this embodiment, the limiting principle of the operating handle 4 is as follows:

[0073] When the handle is pressed down, the contact surface between the cam 5 and the spring pressure seat 6 acts as a fulcrum. The compressed spring gives the spring pressure seat 6 an upward force F1. The handle has a downward gravity F2. The projection distance from the center of the shaft to the fulcrum is the power arm L1, and the projection distance from the center of gravity of the handle to the fulcrum is the resistance arm L2. At this time, F1×L1<F2×L2. According to the principle of leverage, the handle will remain in a downward state without the action of external force.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0075] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A manual limit brake device for a tire balancing machine, mounted on a body (1) of the tire balancing machine, characterized in that: include, A first mounting seat (2) is mounted on a body (1) of the tire balancing machine; A brake mechanism (3) for braking the main shaft of the tire balancing machine; A brake drive mechanism, comprising an operating handle (4), a cam linkage mechanism, and an elastic component (7) arranged in cooperation with the cam linkage mechanism; The operating handle (4) is connected to the first mounting seat (2) via a cam linkage mechanism and an elastic component (7) and is used to drive the brake mechanism (3); When the operating handle (4) is pressed down, the brake drive mechanism drives one end of the brake mechanism (3) to lift up and abut against the main shaft of the tire balancing machine to brake the main shaft and limit the operating handle (4) at the same time; When the operating handle (4) is lifted, the brake drive mechanism drives the brake mechanism (3) to disengage from the main shaft of the tire balancing machine, and the main shaft brake is released.

2. The manual limit brake device for a tire balancing machine according to claim 1, characterized in that: The cam linkage mechanism comprises a cam (5) and a spring pressure seat (6) arranged below the cam (5).

3. The manual limit brake device for a tire balancing machine according to claim 2, characterized in that: The spring pressure seat (6) comprises a boss (61) and a guide shaft (62), wherein the boss (61) and the guide shaft (62) are coaxially arranged, and the guide shaft (62) is arranged at the lower part of the boss (61). The elastic member (7) is sleeved on the guide shaft (62), and one end thereof abuts against the boss (61).

4. The manual limit brake device for a tire balancing machine according to claim 3, characterized in that: An arc-shaped groove (611) is provided on the upper portion of the boss (61), and the cam (5) is installed in a sliding manner in the arc-shaped groove (611) of the boss (61).

5. The manual limit brake device for a tire balancing machine according to claim 1, characterized in that: The first mounting seat (2) comprises a spring mounting seat (21) and a brake pad mounting seat (22), wherein the spring mounting seat (21) is arranged on one side of the brake pad mounting seat (22); The spring mounting seat (21) comprises a first mounting plate (211), a spring limiting groove (8) is arranged on the upper part of the first mounting plate (211), and one end of the elastic member (7) away from the boss (61) is in contact with the spring limiting groove (8).

6. The manual limit brake device for a tire balancing machine according to claim 5, characterized in that: A guide sleeve (9) is provided at the lower part of the first mounting plate (211), and the guide sleeve (9) is connected to the spring limiting groove (8) through a guide hole.

7. The manual limit brake device for a tire balancing machine according to claim 5, characterized in that: The brake pad mounting seat (22) comprises a connecting portion (221) and a mounting portion (222), wherein the connecting portion (221) is provided with a shaft sleeve (10) and a fixed shaft (11), wherein the shaft sleeve (10) is rotatably mounted on the fixed shaft (11), and the fixed shaft (11) is fixed to the body (1) of the tire balancing machine.

8. The manual limit brake device for a tire balancing machine according to claim 7, characterized in that: The brake mechanism (3) comprises a brake pad (12) and a mounting frame for mounting the brake pad (12); the brake pad (12) is mounted on one end of a mounting portion (222) via the mounting frame; the brake pad (12) and the mounting portion (222) are detachably connected, and the mounting position of the brake pad (12) is adjustable.

9. The manual limit brake device for a tire balancing machine according to claim 8, characterized in that: The other end of the mounting portion (222) is provided with an ear plate (13), and the ear plate (13) is connected with a tension spring (14), and the tension spring (14) drives the brake pad mounting seat (22) to rotate along the fixed axis (11) to release the main shaft brake; A hanging ear (15) is arranged at one end of the tension spring (14) away from the ear plate (13); the hanging ear (15) is fixed on the body (1) of the tire balancing machine and is used for hooking the tension spring (14).

10. The manual limit brake device for a tire balancing machine according to any one of claims 1 to 9, characterized in that: It also includes a second mounting seat (16), which is arranged corresponding to the first mounting seat (2) and is mounted on the body (1) of the tire balancing machine and is used to mount the cam (5) and the operating handle (4).

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