Air tightness detection table of air pressure disc brake

Abstract

The utility model provides an air tightness detection bench for an air pressure disc brake, which comprises a circular placing bench and a plurality of clamping mechanisms, and is characterized in that the upper surface of the placing bench is provided with a plurality of transverse grooves along the radius direction of the placing bench, and the utility model relates to the technical field of brake detection. According to the air tightness detection table of the air pressure disc brake, the multiple clamping mechanisms are arranged, the multiple clamping mechanisms in the device are driven to move through movement of the corresponding threaded sleeves, after the brake is placed on the placing table, the multiple clamping mechanisms move in the direction of the brake, and the air tightness of the brake is detected. In the moving process, the two rotating rods in the clamping mechanism can be unfolded in two directions, meanwhile, the overall length of the rotating rods and the end bases is shortened, the outer side surface of the clamping belt is tightly attached to the disc-shaped outer surface of the brake, the brake is positioned, the structure can be matched with brakes of various diameters, and the practicability is high. And during detection, the positioning die does not need to be replaced due to different brakes, so that the efficiency of the detection process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake detection, in particular to an airtight detection bench for an air pressure disc brake. Background Technique

[0002] A brake is a device with functions such as decelerating, stopping, or maintaining a stopped state of a moving part (or moving machinery). It is a mechanical part that stops or decelerates a moving part in a machine. Commonly known as a brake. A brake mainly consists of a brake frame, a braking member, a control device, etc. Some brakes are also equipped with an automatic adjustment device for the clearance of the braking member. In order to reduce the braking torque and structural size, the brake is usually installed on the high-speed shaft of the equipment, but for large equipment with high safety requirements (such as mine hoists, elevators, etc.), it should be installed on the low-speed shaft close to the working part of the equipment.

[0003] A brake is a brake, which plays an important role in an automobile. Nowadays, most brakes are air pressure disc brakes, which control braking through air pressure. During the production process of an air pressure disc brake, it is necessary to perform an airtightness detection on it. During the detection process of the existing airtightness detection equipment, it is necessary to place the brake in a mold with a groove to fix the brake. However, the types of brakes are different, and their overall diameters are also different. When detecting different brakes, it is necessary to replace the positioning mold, which is relatively inconvenient and affects the detection efficiency.

[0004] Therefore, it is necessary to provide a new airtight detection bench for an air pressure disc brake to solve the above technical problems. Summary of the Invention

[0005] The utility model provides an airtight detection bench for an air pressure disc brake, and the technical problem to be solved is that the types of brakes are different, and their overall diameters are also different. When detecting different brakes, it is necessary to replace the positioning mold, which is relatively inconvenient and affects the detection efficiency.

[0006] To solve the above technical problems, the airtight detection bench for an air pressure disc brake provided by the utility model includes a circular placement table and a plurality of clamping mechanisms;

[0007] Transverse grooves, there are a plurality of the transverse grooves and they are all opened on the upper surface along the radial direction of the placement table. A threaded rod is horizontally rotatably connected inside each of the plurality of transverse grooves, and a threaded sleeve is threadedly connected to the outer surface of each of the plurality of threaded rods. The plurality of clamping mechanisms respectively correspond to the plurality of threaded sleeves;

[0008] The structures of multiple said clamping mechanisms are the same. One of the said clamping mechanisms includes a sliding block slidably connected to the upper surface of the placing table and fixedly connected to the top end of one of the said threaded sleeves. Both sides of the inner end surface of the sliding block are fixedly connected with fixed seats. The outer ends of both said fixed seats are horizontally rotatably connected with rotating rods. The other ends of both said rotating rods are horizontally fixedly connected with springs. The other ends of both said springs are fixedly connected with end seats. The rear end surfaces of both said end seats are horizontally fixedly connected with sliding sleeves that extend backward and are respectively slidably connected to the outer surfaces of both said rotating rods. The front ends of both said end seats are vertically rotatably connected with vertical rollers.

[0009] Preferably, both side surfaces of the sliding block are fixedly connected with connecting blocks, and a clamping belt with an inner side surface closely fitting both said vertical rollers is fixedly connected between the two connecting blocks.

[0010] Preferably, both surfaces of the opposite sides of both said sliding sleeves are fixedly connected with extension seats, and a tension spring is fixedly connected between the two extension seats.

[0011] Preferably, a guide rod is horizontally fixedly connected inside the transverse groove, and a guide block is slidably connected to the outer surface of the guide rod along its length direction, and the guide block is fixedly connected with the threaded sleeve.

[0012] Preferably, a plurality of servo motors are horizontally fixedly connected to the outer side surface of the placing table, and the output shafts of the plurality of servo motors can rotatably penetrate the side surface of the placing table and are respectively fixedly connected to one ends of the plurality of threaded rods.

[0013] Preferably, a plurality of mounting rods are vertically fixedly connected to the upper surface of the placing table, and a detection structure is arranged at the top ends of the plurality of mounting rods.

[0014] Compared with the related art, the airtight detection table of the pneumatic disc brake provided by the present utility model has the following beneficial effects: The present utility model provides an airtight detection table of a pneumatic disc brake. In this airtight detection table of the pneumatic disc brake, by arranging a plurality of clamping mechanisms, the plurality of clamping mechanisms in the device are respectively driven to move through the movement of the corresponding threaded sleeves. After placing the brake on the placing table, the plurality of clamping mechanisms move towards the brake. During the movement, the two rotating rods in the clamping mechanism will expand in two directions, and at the same time, the overall length of the rotating rod and the end seat becomes shorter, so that the outer side surface of the clamping belt closely fits the disc-shaped outer surface of the brake, thereby positioning the brake. This structure can adapt to brakes of various diameters, and it is not necessary to replace the positioning mold due to different brakes during the detection process, improving the efficiency of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1Schematic diagram of the placement table and clamping structure of the present utility model;

[0016] Figure 2 is Figure 1 partial enlarged view of area A in

[0017] Figure 3 Schematic diagram of the transverse groove and threaded rod of the present utility model.

[0018] Reference numerals in the figure: 1 - placement table, 2 - transverse groove, 3 - threaded rod, 4 - threaded sleeve, 5 - sliding block, 6 - fixed seat, 7 - rotating rod, 8 - sliding sleeve, 9 - spring, 10 - vertical roller, 11 - servo motor, 12 - tension spring, 13 - connecting block, 14 - clamping belt, 15 - guide rod, 16 - guide block. Detailed implementation manners

[0019] The present utility model will be further described below in conjunction with the accompanying drawings and implementation manners.

[0020] Please refer to Figure 1 、 Figure 2 and Figure 3 wherein, Figure 1 Schematic diagram of the placement table and clamping structure of the present utility model; Figure 2 is Figure 1 partial enlarged view of area A in Figure 3 Schematic diagram of the transverse groove and threaded rod of the present utility model. The airtight detection table of the air pressure disc brake includes: a circular placement table 1 and a plurality of clamping mechanisms;

[0021] A plurality of transverse grooves 2 are formed in the upper surface of the placement table 1 along its radial direction, and threaded rods 3 are horizontally rotatably connected inside the plurality of transverse grooves 2. Threaded sleeves 4 are threadedly connected to the outer surfaces of the plurality of threaded rods 3, and the plurality of clamping mechanisms respectively correspond to the plurality of threaded sleeves 4;

[0022] The structures of the plurality of clamping mechanisms are the same. One of the clamping mechanisms includes a sliding block 5 slidably connected to the upper surface of the placement table 1 and fixedly connected to the top end of a threaded sleeve 4. Fixed seats 6 are fixedly connected to both sides of the inner end surface of the sliding block 5. Rotating rods 7 are horizontally rotatably connected to the outer ends of the two fixed seats 6. Springs 9 are horizontally fixedly connected to the other ends of the two rotating rods 7. End seats are fixedly connected to the other ends of the two springs 9. Sliding sleeves 8 extending rearward and slidably connected to the outer surfaces of the two rotating rods 7 are horizontally fixedly connected to the rear end surfaces of the two end seats. Vertical rollers 10 are vertically rotatably connected to the front ends of the two end seats.

[0023] Connecting blocks 13 are fixedly connected to both side surfaces of the sliding block 5, and a clamping belt 14 with an inner surface closely fitting the two vertical rollers 10 is fixedly connected between the two connecting blocks 13.

[0024] Multiple clamping mechanisms in the device are driven to move respectively through the corresponding threaded sleeves 4. After placing the brake on the placing table 1, the multiple clamping mechanisms move towards the brake. During the movement, the two rotating rods 7 in the clamping mechanism will expand in two directions, and at the same time, the overall length of the rotating rod 7 and the end seat becomes shorter, so that the outer surface of the clamping belt 14 closely fits the disc-shaped outer surface of the brake, thereby positioning the brake. This structure can adapt to brakes of various diameters, and there is no need to replace the positioning mold due to different brakes during detection, improving the efficiency of the detection process.

[0025] During the rotation of the threaded rod 3, it will drive the threaded sleeve 4 to move along its length direction, thereby synchronously driving the clamping mechanism fixedly connected to the threaded sleeve 4 to move. The two vertical rollers 10 in the clamping mechanism will first touch the outer surface of the brake disc, and then under the action of force, the two vertical rollers 10 will move in two opposite directions. During this process, the clamping belt 14 on their outer surfaces will also closely fit the outer surface of the brake disc until the structure is completely tightened. In this state, the clamping belt 14 will fix the brake disc through friction.

[0026] Extension seats are fixedly connected to the surfaces of the two sliding sleeves 8 on the opposite sides, and a tension spring 12 is fixedly connected between the two extension seats.

[0027] The tension spring 12 can limit the distance between the two rotating rods 7, so that they will only move in opposite directions after being stressed at the front end, and can also enable the two rotating rods 7 to quickly reset after the clamping operation is completed.

[0028] A guide rod 15 is fixedly connected horizontally inside the transverse groove 2, and a guide block 16 is slidably connected to the outer surface of the guide rod 15 along its length direction. The guide block 16 is fixedly connected to the threaded sleeve 4.

[0029] The guide rod 15 plays a guiding role to ensure the stable movement of the threaded sleeve 4.

[0030] A plurality of servo motors 11 are fixedly connected horizontally to the outer surface of the placing table 1. The output shafts of the plurality of servo motors 11 can rotatably penetrate the side surface of the placing table 1 and are respectively fixedly connected to one end of the plurality of threaded rods 3.

[0031] The plurality of servo motors 11 are controlled by the single-chip microcomputer to run synchronously, thereby driving the plurality of threaded rods 3 to rotate synchronously and at the same speed.

[0032] A plurality of mounting rods are fixedly connected vertically to the upper surface of the placing table 1, and a detection structure is provided at the top of the plurality of mounting rods.

[0033] The detection structure is prior art and will not be elaborated here.

[0034] The working principle of the airtight detection bench for the pneumatic disc brake provided by the utility model is as follows:

[0035] During the rotation of the threaded rod 3, the threaded sleeve 4 will move along its length direction, thereby synchronously driving the clamping mechanism fixedly connected to the threaded sleeve 4 to move. The two vertical rollers 10 in the clamping mechanism will first touch the outer surface of the brake disc, and then under the action of force, the two vertical rollers 10 will move in two opposite directions. During this process, the clamping belts 14 on their outer surfaces will also closely fit the outer surface of the brake disc until the structure is completely tightened. In this state, the clamping belts 14 will fix the brake disc through friction. This structure can adapt to brakes of various diameters, and there is no need to replace the positioning mold due to different brakes during detection, improving the efficiency of the detection process.

[0036] Compared with the related technology, the airtight detection bench for the pneumatic disc brake provided by the utility model has the following beneficial effects:

[0037] The utility model provides an airtight detection bench for a pneumatic disc brake. By setting a plurality of clamping mechanisms, the plurality of clamping mechanisms in the device are respectively driven to move through the movement of the corresponding threaded sleeves 4. After placing the brake on the placing table 1, the plurality of clamping mechanisms move towards the brake. During the movement, the two rotating rods 7 in the clamping mechanism will expand in two directions, and at the same time, the overall length of the rotating rods 7 and the end seats becomes shorter, so that the outer surface of the clamping belt 14 closely fits the disc-shaped outer surface of the brake, thereby positioning the brake. This structure can adapt to brakes of various diameters, and there is no need to replace the positioning mold due to different brakes during detection, improving the efficiency of the detection process.

[0038] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An airtightness test bench for a pneumatic disc brake, characterized in that: It comprises a circular placement table (1) and a plurality of clamping mechanisms; A transverse groove (2), wherein the transverse grooves (2) are multiple and are all opened on the upper surface of the placement platform (1) along the radial direction thereof, the interiors of the multiple transverse grooves (2) are all connected to threaded rods (3) for transverse rotation, the outer surfaces of the multiple threaded rods (3) are all threadedly connected to threaded sleeves (4), and the multiple clamping mechanisms correspond to the multiple threaded sleeves (4) respectively; The structures of the plurality of clamping mechanisms are the same, wherein one of the clamping mechanisms comprises a sliding block (5) slidably connected to the upper surface of the placing table (1) and fixedly connected to the top of a threaded sleeve (4), both sides of the inner end surface of the sliding block (5) are fixedly connected to fixed seats (6), the outer ends of the two fixed seats (6) are laterally rotatably connected to rotating rods (7), the other ends of the two rotating rods (7) are laterally fixedly connected to springs (9), the other ends of the two springs (9) are fixedly connected to end seats, the rear end surfaces of the two end seats are laterally fixedly connected to sliding sleeves (8) extending backwards and slidably connected to the outer surfaces of the two rotating rods (7), and the front ends of the two end seats are vertically rotatably connected to vertical rollers (10).

2. The airtightness test bench for pneumatic disc brake according to claim 1, characterized in that: The two side surfaces of the sliding block (5) are fixedly connected with connecting blocks (13), and a clamping belt (14) whose inner surface is tightly fitted to the two vertical rollers (10) is fixedly connected between the two connecting blocks (13).

3. The airtightness test bench for pneumatic disc brake according to claim 1, characterized in that: The surfaces of the two sliding sleeves (8) on the opposite side are both fixedly connected with extension seats, and a tension spring (12) is fixedly connected between the two extension seats.

4. The airtightness test bench for pneumatic disc brake according to claim 1, characterized in that: A guide rod (15) is fixedly connected transversely inside the transverse groove (2), and a guide block (16) is slidably connected to the outer surface of the guide rod (15) along its length direction, and the guide block (16) is fixedly connected to the threaded sleeve (4).

5. The airtightness testing platform for pneumatic disc brakes according to claim 1, characterized in that: A plurality of servo motors (11) are laterally fixedly connected to the outer surface of the placement table (1), and the output shafts of the plurality of servo motors (11) are rotatably connected through the side surface of the placement table (1) and are respectively fixedly connected to one end of the plurality of threaded rods (3).

6. The airtightness testing platform for pneumatic disc brakes according to claim 1, characterized in that: A plurality of mounting rods are vertically fixedly connected to the upper surface of the placement platform (1), and detection structures are arranged at the top ends of the plurality of mounting rods.

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