A driving structure for a tread brake unit

Abstract

The utility model discloses a driving structure for a tread brake unit, comprising a housing, a calibration device is arranged inside the housing, and the calibration device comprises a motor, an active bevel gear, a driven bevel gear, a transmission rod, a gear, a tooth plate, a third push rod, a brake cylinder, and a fan-shaped slide. By arranging the motor, the third push rod, and the fan-shaped slide, the active bevel gear is driven to rotate indirectly by starting the motor, and the tooth plate is driven to move, so that the third push rod pushes the brake cylinder to slide inside the fan-shaped slide, and the distance between the brake shoe and the tread is adjusted, so that the surface of the brake shoe and the tread is prevented from being damaged and thinned after the device is used for a period of time, so that the tread braking effect is reduced, and the braking efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of braking, in particular to a driving structure for a tread brake unit. Background Art

[0002] Tread braking, also known as brake shoe braking, is commonly used in the vehicle braking area. It uses the brake cylinder to push the brake shoe to press the tread, and the friction between the brake shoe and the tread is used to convert the kinetic energy of the vehicle during driving into heat energy and consume it, so that the vehicle stops. However, traditional tread braking devices will generate friction and high temperature during braking. After a period of use, the surface of the brake shoe and the tread will be damaged and thinned, which will increase the distance between the brake shoe and the tread and reduce the tread braking effect. In addition, when the traditional tread braking device is braking, the brake shoe and the tread may expand due to the high temperature, increase in volume, generate a reverse force, and damage the tread braking device. Therefore, a drive structure for the tread brake unit is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a driving structure for a tread brake unit, which can solve the problems that after the traditional tread brake device has been used for a period of time, the surfaces of the brake shoe and the tread are damaged and thinned, thereby reducing the tread braking effect, and the brake shoe and tread expand and damage the tread brake device during the braking process of the tread brake device.

[0004] To achieve the above object, a driving structure for a tread brake unit is provided, comprising a housing, wherein a calibration device is provided inside the housing, wherein the calibration device comprises a motor, a driving bevel gear, a driven bevel gear, a transmission rod, a gear, a tooth plate, a third push rod, a brake cylinder, and a sector-shaped slide;

[0005] The output end of the brake cylinder is fixedly connected to a first push rod, and the other end of the first push rod is fixedly connected to an absorption device, which includes a first disc, a second connecting block, a second disc, a first limit block, a second limit block, and a spring.

[0006] According to the driving structure for the tread brake unit, the feature is that a mounting plate is fixedly connected to the side surface of the housing, and two mounting holes are provided at symmetrical positions at the center of the side surface of the mounting plate.

[0007] According to the driving structure for the tread brake unit, it is characterized in that: first connecting blocks are fixedly connected to both sides of the calibration device, and the other end of the first connecting block is fixedly connected to the housing.

[0008] According to the driving structure for the tread brake unit, it is characterized in that: the other end of the absorption device is fixedly connected to the second push rod, the other end of the second push rod is fixedly connected to the tile-shaped brake block, the other end of the first push rod is fixedly connected to the first disc, the other end of the second disc is fixedly connected to the second push rod, a slide groove is fixedly connected at the central symmetrical position inside the shell, two sliders are slidably connected inside the slide groove, the other end of the slider is fixedly connected to a limiting rod, and the side of the limiting rod is fixedly connected to the tile-shaped brake block.

[0009] According to the driving structure for the tread brake unit, it is characterized in that: the output shaft of the motor is fixedly connected to the active bevel gear, the surface of the active bevel gear is meshed with the driven bevel gear, the lower end of the driven bevel gear is fixedly connected to the transmission rod, the lower end of the transmission rod is fixedly connected to the gear, the surface of the gear is meshed with the tooth plate, the side surface of the tooth plate is fixedly connected to the third push rod, the side surface of the third push rod is fixedly connected to the brake cylinder, and the surface of the brake cylinder is slidably connected to the fan-shaped slide groove.

[0010] According to the driving structure for the tread brake unit, it is characterized in that the interior of the first disc is slidingly connected to multiple second connecting blocks, the surface of the second connecting block is slidingly connected to the second disc, one end of the second connecting block is fixedly connected to the first limit block, and one end of the spring is fixedly connected to the first disc.

[0011] According to the driving structure for the tread brake unit, the feature is that the other end of the second connecting block is fixedly connected to the second limiting block, and the other end of the spring is fixedly connected to the second disc.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This driving structure for the tread brake unit is provided with a motor, a third push rod, and a fan-shaped chute. By starting the motor to drive the active bevel gear to indirectly drive the gear to rotate, the gear plate is driven to move, so that the third push rod pushes the brake cylinder to slide inside the fan-shaped chute, and the distance between the brake shoe and the tread is adjusted. This avoids the surface of the brake shoe and the tread being damaged and thinned after the device has been used for a period of time, which reduces the tread braking effect and improves the braking efficiency of the device.

[0014] 2. This driving structure for the tread brake unit is provided with a first disc, a second disc, and a spring. The elastic force of the spring absorbs a reverse force generated by the expansion of the brake shoe and the tread due to high temperature, thereby reducing damage to the device caused by the reverse force and increasing the service life of the device.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a driving structure for a tread brake unit of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the internal structure of a driving structure for a tread brake unit of the present invention;

[0019] Figure 3 This is a three-dimensional diagram of the internal structure of a drive structure calibration device for a tread brake unit of the present invention;

[0020] Figure 4 For the utility model Figure 2 An enlarged schematic diagram of the structure at A in the middle;

[0021] Figure 5 This is an exploded view of a drive structure absorption device for a tread brake unit of the utility model.

[0022] In the figure: 1. Housing; 2. Mounting plate; 3. Mounting hole; 4. Calibration device; 5. First connecting block; 6. First push rod; 7. Absorption device; 8. Second push rod; 9. Tiled brake block; 10. Slide groove; 11. Slider; 12. Limit rod; 401. Motor; 402. Active bevel gear; 403. Driven bevel gear; 404. Transmission rod; 405. Gear; 406. Tooth plate; 407. Third push rod; 408. Brake cylinder; 409. Fan-shaped slide groove; 701. First disc; 702. Second connecting block; 703. Second disc; 704. First limit block; 705. Second limit block; 706. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0024] See also Figure 1-5, the embodiment of the utility model provides a technical solution: a driving structure for a tread brake unit, including a shell 1, a calibration device 4 is provided inside the shell 1, the calibration device 4 includes a motor 401, an active bevel gear 402, a driven bevel gear 403, a transmission rod 404, a gear 405, a tooth plate 406, a third push rod 407, a brake cylinder 408, and a fan-shaped slide 409. By arranging the motor 401, the third push rod 407, and the fan-shaped slide 409, the active bevel gear 402 is driven to rotate indirectly by starting the motor 401, and the tooth plate 406 is driven to move, so that the third push rod 407 pushes the brake cylinder 408 to slide inside the fan-shaped slide 409, thereby adjusting the distance between the brake shoe and the tread, thereby avoiding the surface damage and thinning of the brake shoe and the tread after the device has been used for a period of time, which reduces the tread braking effect and improves the braking efficiency of the device.

[0025] The output end of the brake cylinder 408 is fixedly connected to the first push rod 6, and the other end of the first push rod 6 is fixedly connected to the absorption device 7. The absorption device 7 includes a first disc 701, a second connecting block 702, a second disc 703, a first limit block 704, a second limit block 705, and a spring 706. By arranging the first disc 701, the second disc 703, and the spring 706, the elastic force of the spring 706 absorbs a reverse force generated by the expansion of the brake shoe and the tread due to high temperature, thereby reducing the damage to the device caused by the reverse force and improving the service life of the device.

[0026] The side of the shell 1 is fixedly connected to a mounting plate 2, and two mounting holes 3 are provided at the central symmetrical positions of the side of the mounting plate 2. By setting the mounting plate 2 and the mounting holes 3, the device can be installed on the vehicle. The two sides of the calibration device 4 are fixedly connected to the first connecting block 5, and the other end of the first connecting block 5 is fixedly connected to the shell 1. The calibration device 4 is fixed inside the device by setting the first connecting block 5. The other end of the absorption device 7 is fixedly connected to the second push rod 8, and the other end of the second push rod 8 is fixedly connected to the tile-shaped brake block 9. The braking function of the device is achieved by setting the tile-shaped brake block 9. The other end of the first push rod 6 is fixedly connected to the first disc 701, and the other end of the second disc 703 is fixedly connected to the second push rod 8. A slide groove 10 is fixedly connected to the central symmetrical position of the interior of the shell 1. Two sliders 11 are slidably connected inside the slide groove 10, and the other end of the slider 11 is fixedly connected to the limiting rod 12. The side of the limiting rod 12 is fixedly connected to the tile-shaped brake block 9. By setting the limiting rod 12, the second push rod 8 is reduced from breaking due to excessive friction between the brake shoe and the tread during braking, thereby improving the service life of the device. The output shaft of the motor 401 is fixedly connected to the active bevel gear 402, the surface of the active bevel gear 402 is meshed with the driven bevel gear 403, the lower end of the driven bevel gear 403 is fixedly connected to the transmission rod 404, the lower end of the transmission rod 404 is fixedly connected to the gear 405, the surface of the gear 405 is meshed with the toothed plate 406, the side of the toothed plate 406 is fixedly connected to the third push rod 407, the side of the third push rod 407 is fixedly connected to the brake cylinder 408, the surface of the brake cylinder 408 is slidably connected to the fan-shaped chute 409, the interior of the first disc 701 is connected to the Multiple second connecting blocks 702 are slidably connected, the surface of the second connecting block 702 is slidably connected to the second disc 703, one end of the second connecting block 702 is fixedly connected to the first limit block 704, one end of the spring 706 is fixedly connected to the first disc 701, the other end of the second connecting block 702 is fixedly connected to the second limit block 705, and the other end of the spring 706 is fixedly connected to the second disc 703. By setting the active bevel gear 402 and the driven bevel gear 403, the output direction of the motor 401 is changed, which avoids the calibration device 4 from being too long. The design is very clever.

[0027] Working principle: When in use, turn on the power supply, and when calibrating the distance between the brake shoe and the tread, start the motor 401, the motor 401 drives the active bevel gear 402 to rotate, the active bevel gear 402 drives the driven bevel gear 403 to rotate, the driven bevel gear 403 drives the transmission rod 404 to rotate, the transmission rod 404 drives the gear 405 to rotate, the gear 405 drives the gear plate 406 to move, the gear plate 406 drives the third push rod 407 to move, the third push rod 407 pushes the brake cylinder 408 to slide inside the fan-shaped slide groove 409, adjusts the distance between the brake shoe and the tread, and realizes the calibration of the distance between the brake shoe and the tread.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A driving structure for a tread brake unit, comprising a housing (1), characterized in that: A calibration device (4) is provided inside the housing (1), and the calibration device (4) comprises a motor (401), a driving bevel gear (402), a driven bevel gear (403), a transmission rod (404), a gear (405), a toothed plate (406), a third push rod (407), a brake cylinder (408), and a fan-shaped slide groove (409); The output end of the brake cylinder (408) is fixedly connected to a first push rod (6), and the other end of the first push rod (6) is fixedly connected to an absorption device (7), and the absorption device (7) comprises a first disc (701), a second connecting block (702), a second disc (703), a first limit block (704), a second limit block (705), and a spring (706).

2. A driving structure for a tread brake unit according to claim 1, characterized in that: A mounting plate (2) is fixedly connected to the side of the housing (1), and two mounting holes (3) are provided at symmetrical positions in the center of the side of the mounting plate (2).

3. A driving structure for a tread brake unit according to claim 1, characterized in that: First connection blocks (5) are fixedly connected to both sides of the calibration device (4), and the other end of the first connection block (5) is fixedly connected to the housing (1).

4. A driving structure for a tread brake unit according to claim 1, characterized in that: The other end of the absorption device (7) is fixedly connected to a second push rod (8), the other end of the second push rod (8) is fixedly connected to a tile-shaped brake block (9), the other end of the first push rod (6) is fixedly connected to the first disc (701), the other end of the second disc (703) is fixedly connected to the second push rod (8), a slide groove (10) is fixedly connected to a central symmetrical position inside the housing (1), two sliders (11) are slidably connected inside the slide groove (10), the other end of the slider (11) is fixedly connected to a limit rod (12), and the side of the limit rod (12) is fixedly connected to the tile-shaped brake block (9).

5. A driving structure for a tread brake unit according to claim 1, characterized in that: The output shaft of the motor (401) is fixedly connected to the active bevel gear (402), the surface of the active bevel gear (402) is meshedly connected to the driven bevel gear (403), the lower end of the driven bevel gear (403) is fixedly connected to the transmission rod (404), the lower end of the transmission rod (404) is fixedly connected to the gear (405), the surface of the gear (405) is meshedly connected to the toothed plate (406), the side surface of the toothed plate (406) is fixedly connected to the third push rod (407), the side surface of the third push rod (407) is fixedly connected to the brake cylinder (408), and the surface of the brake cylinder (408) is slidably connected to the fan-shaped slide groove (409).

6. A driving structure for a tread brake unit according to claim 1, characterized in that: The interior of the first disk (701) is slidably connected to a plurality of second connection blocks (702), the surface of the second connection block (702) is slidably connected to the second disk (703), one end of the second connection block (702) is fixedly connected to the first limit block (704), and one end of the spring (706) is fixedly connected to the first disk (701).

7. A driving structure for a tread brake unit according to claim 6, characterized in that: The other end of the second connecting block (702) is fixedly connected to the second limiting block (705), and the other end of the spring (706) is fixedly connected to the second disc (703).

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