Air bag brake device

Abstract

The utility model discloses an air bag type brake device, including two cylinder bodies fixed together up and down, still include the telescopic air bag of fixed in the inboard of cylinder body, and the lateral surface of two cylinder bodies all is provided with the compressed air inlet hole that communicates with telescopic air bag, set up in the inboard of cylinder body and fixed brake lining of connection with telescopic air bag, the air bag type brake device of the utility model through adopting air bag type structure has avoided the repeated friction of rubber sealing ring and cylinder wall, has eliminated the problem of not tight and air leakage due to rubber wear fundamentally, has improved the reliability and stability of brake device greatly, has effectively guaranteed the safety of cable production process, has reduced the risk of safety accident caused by brake failure, and also help to improve product quality, on the other hand, utilize two end air intake and the design of through type gas flow channel, successfully solved the brake eccentric problem caused by the unsynchronized of two brake linings due to single end air intake.

Description

Technical Field

[0001] This utility model belongs to the field of brake technology, specifically relating to an airbag braking device. Background Technology

[0002] In the field of cable production, rotary production processes account for a significant proportion. Steps such as the rotation of the spool for winding and unwinding, as well as the stranding of cables, all rely on rotary operations. To ensure the safety and stability of the production process and the reliability of product quality, precise deceleration and braking control of rotating components is crucial. Currently, most equipment in the industry uses a brake disc structure to achieve this purpose. Among them, the pneumatic disc brakes equipped on the company's existing equipment are a relatively common type.

[0003] Existing pneumatic disc brakes work by using a circular rubber seal to isolate the brake pads from the air chamber. In actual production applications, these disc brakes require frequent inflation and deflation to achieve braking and releasing functions. During this process, the rubber seal moves up and down with the inflation and deflation of air, and its outer ring inevitably rubs repeatedly against the metal inner wall of the air chamber. Rubber is relatively soft, and under prolonged and frequent friction, it is prone to wear. Once the rubber seal wears down, it leads to poor sealing and air leakage. The direct consequence of air leakage is the failure of the braking function. This not only damages the cables in production, affecting product quality, but may also cause safety accidents and affect the operator's safety. The safety of the personnel is threatened. In addition, due to the bidirectional friction between the rubber seals, brake pads and cylinder walls, the cylinder walls will gradually wear and enlarge during long-term friction. When air leakage occurs, the existing solution is often to disassemble and replace the entire braking system. For example, a 60 disc winch machine has as many as 60 pneumatic disc brakes installed. If some or all of these disc brakes fail and need to be repaired or replaced, the workload is enormous. It not only requires a lot of manpower and time for disassembly and installation, but the replacement cost is also very high. This undoubtedly brings a heavy burden to the production and operation of enterprises. Therefore, this utility model proposes an airbag braking device. Utility Model Content

[0004] The purpose of this invention is to provide an airbag braking device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an airbag braking device, comprising... The two cylinders are fixed together vertically, and also include a telescopic airbag fixed inside the cylinder. Both cylinders have compressed air inlet holes that communicate with the telescopic airbag on their sides, and both cylinders have through-type gas flow channels that communicate with the compressed air inlet holes on their end faces. Brake pads are located inside the cylinder body and are fixedly connected to the telescopic airbag.

[0006] Preferably, an airbag fixing structure is provided between the telescopic airbag and the cylinder, and a connecting structure is provided between the telescopic airbag and the brake pad.

[0007] Preferably, the airbag fixing structure includes an airbag pressure plate and multiple airbag fixing bolts, wherein the airbag pressure plate presses and fixes one end of the telescopic airbag to the inner side of the cylinder body through the multiple airbag fixing bolts.

[0008] Preferably, the connection structure includes a connecting plate and multiple brake pad fixing bolts, and the other end of the telescopic airbag is connected and fixed to the brake pad through the connecting plate and multiple brake pad fixing bolts.

[0009] Preferably, a cylinder fixing structure is provided between the two cylinders. The cylinder fixing structure includes an upper bolt groove, a lower threaded hole, and a cylinder connecting bolt. The upper cylinder surface at the top has an upper bolt groove for inserting the cylinder connecting bolt, and the lower cylinder surface at the bottom has a lower threaded hole for screwing the cylinder connecting bolt in. The threaded end of the cylinder connecting bolt is inserted into the inner side of the upper bolt groove and screwed into the lower threaded hole to lock and fix the two cylinders.

[0010] Preferably, a movable sealing structure is provided on one side of the bottom surface of the lower cylinder relative to each lower threaded hole.

[0011] Preferably, the movable sealing structure includes a protective cover disposed on the bottom surface of the cylinder body and on one side of the lower threaded hole. The protective cover has an integrated rotating seat on its side. A T-shaped shaft is fixed on one side of the bottom surface of the cylinder body relative to each lower threaded hole. The rotating seat is rotatably sleeved on the T-shaped shaft. The top surface of the protective cover has an annular protrusion that matches the size of the lower threaded hole.

[0012] Preferably, a gas passage sealing ring is also provided at the through-type gas flow channel of the two cylinder contact surfaces.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The airbag braking device of this utility model effectively solves two major drawbacks of existing braking devices: On the one hand, by adopting an airbag structure, repeated friction between the rubber sealing ring and the cylinder wall is avoided, fundamentally eliminating the problem of air leakage caused by poor sealing due to rubber wear, greatly improving the reliability and stability of the braking device, effectively ensuring the safety of the cable production process, reducing the risk of safety accidents caused by brake failure, and also helping to improve product quality; on the other hand, by utilizing the design of air intake at both ends and a through-type gas flow channel, the problem of brake eccentricity caused by the asynchrony of the upper and lower brake pads due to single-end air intake is successfully solved, making braking more stable and precise, and further improving the braking effect. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention; Figure 2 This is a bottom-view perspective view of the present invention; Figure 3 This is a front sectional view of the present invention; Figure 4 This utility model Figure 2 A magnified view of a portion of region A in the middle; In the diagram: 1. Cylinder block; 2. Telescopic airbag; 3. Brake pad; 4. Airbag pressure plate; 5. Connecting plate; 6. Brake pad fixing bolt; 7. Airbag fixing bolt; 8. Through-type gas flow channel; 9. Air passage sealing ring; 10. Upper bolt groove; 11. Lower threaded hole; 12. Cylinder block connecting bolt; 13. Protective cover; 14. Compressed air inlet; 15. Rotary seat; 16. T-shaped shaft. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0016] Please see Figures 1 to 3 This is the first embodiment of the present invention, which provides the following technical solution: an airbag braking device, comprising... The two cylinders 1 are fixed together, and the telescopic airbag 2 is fixed inside the cylinder 1. Both cylinders 1 have compressed air inlet holes 14 that communicate with the telescopic airbag 2 on their sides. Both cylinders 1 have through-type gas flow channels 8 that communicate with the compressed air inlet holes 14 on their end faces. This allows the compressed air inlet holes 14 in the two cylinders 1 to be connected through the through-type gas flow channels 8. By using the design of air intake at both ends and through-type gas flow channels, the problem of brake eccentricity caused by the asynchronous operation of the upper and lower brake pads 3 due to single-end air intake is successfully solved, making the braking more stable and precise, and further improving the braking effect. The brake pad 3 is installed inside the cylinder 1 and is connected and fixed to the telescopic airbag 2. The telescopic airbag 2 is a telescopic and sealed rubber airbag. When the telescopic airbag 2 is filled with gas, the brake pad 3 at the end of the telescopic airbag 2 is pushed out by the expansion and contraction properties of rubber, so as to clamp both sides of the rotating coil or brake disc at the same time, so as to achieve the effect of deceleration or braking.

[0017] In this embodiment, preferably, an airbag fixing structure is provided between the telescopic airbag 2 and the cylinder 1, and a connecting structure is provided between the telescopic airbag 2 and the brake pad 3.

[0018] In this embodiment, preferably, the airbag fixing structure includes an airbag pressure plate 4 and multiple airbag fixing bolts 7. The airbag pressure plate 4 presses and fixes one end of the telescopic airbag 2 to the inner side of the cylinder body 1 through the multiple airbag fixing bolts 7, so that one end of the telescopic airbag 2 can communicate with the compressed air inlet hole 14 in the cylinder body 1.

[0019] In this embodiment, preferably, the connecting structure includes a connecting plate 5 and multiple brake pad fixing bolts 6. The other end of the telescopic airbag 2 is connected and fixed to the brake pad 3 through the connecting plate 5 and multiple brake pad fixing bolts 6, so that the telescopic airbag 2 and the brake pad 3 can be connected and fixed together.

[0020] In this embodiment, preferably, a cylinder fixing structure is provided between the two cylinders 1. The cylinder fixing structure includes an upper bolt groove 10, a lower threaded hole 11, and a cylinder connecting bolt 12. The upper bolt groove 10 is provided on the surface of the upper cylinder 1 for the cylinder connecting bolt 12 to be inserted. The bottom end of the upper bolt groove 10 is provided with a bolt hole for the cylinder connecting bolt 12 to pass through. The lower threaded hole 11 is provided on the surface of the lower cylinder 1 for the cylinder connecting bolt 12 to be screwed in. The threaded end of the cylinder connecting bolt 12 is inserted into the inner side of the upper bolt groove 10 and screwed into the lower threaded hole 11 to lock and fix the two cylinders 1.

[0021] In this embodiment, preferably, a gas passage sealing ring 9 is also provided at the through gas flow channel 8 of the contact surface of the two cylinders 1. The gas passage sealing ring 9 is made of rubber material, which can ensure the sealing of the through gas flow channel 8 after the two cylinders 1 are connected and fixed.

[0022] In summary, during actual use, the brake disc on the cable production equipment is installed between the upper and lower cylinders 1 and between the upper and lower brake pads 3. Compressed air is connected to the compressed air inlet 14 on the side of the cylinder 1 through the gas control valve. When the equipment needs to brake, the equipment signals the gas control valve to open, and the gas enters the telescopic airbag 2 through the compressed air inlet 14, inflating it and pushing the brake pads 3 out to contact the brake disc for braking. When the equipment needs to operate, the equipment signals the gas control valve to close the air intake and open the air release valve. The telescopic airbag 2, due to the lack of air pressure, retracts with the brake pads 3, losing its braking effect on the brake disc. At the same time, the gas control valve can also be quickly given an air intake / release signal as needed to allow the telescopic airbag 2 to quickly inflate and deflate, thereby achieving a point braking effect. Example 2

[0023] Please see Figures 1 to 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the bottom surface of the lower cylinder 1 is provided with a movable sealing structure on one side of each lower threaded hole 11, which can seal the bottom opening of the lower threaded hole 11 during daily use to prevent foreign objects from entering.

[0024] In this embodiment, preferably, the movable sealing structure includes a protective cover 13 disposed on the bottom surface of the cylinder body 1 and on one side of the lower threaded hole 11. The protective cover 13 has an integrated rotating seat 15 on its side. A T-shaped shaft 16 is fixed on one side of the bottom surface of the cylinder body 1 relative to each lower threaded hole 11. The rotating seat 15 is rotatably sleeved on the T-shaped shaft 16, so that the protective cover 13 can rotate smoothly at the bottom of the cylinder body 1. The top surface of the protective cover 13 has an annular protrusion that matches the size of the lower threaded hole 11. When the operator rotates the protective cover 13 to the bottom opening of the lower threaded hole 11, the annular protrusion will be embedded in the lower threaded hole 11 to limit the protective cover 13. This allows the protective cover 13 to stably cover the bottom opening of the lower threaded hole 11 for sealing during daily use. It is worth noting that the protective cover 13, the rotating seat 15, and the annular protrusion are all made of fluororubber.

[0025] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An airbag-type braking device, characterized in that: include The two cylinders (1) are fixed together, and the telescopic airbag (2) is fixed inside the cylinder (1). The sides of the two cylinders (1) are provided with compressed air inlet holes (14) that communicate with the telescopic airbag (2). The end faces of the two cylinders (1) are provided with through-type gas flow channels (8) that communicate with the compressed air inlet holes (14). Brake pads (3) are installed inside the cylinder (1) and are connected and fixed to the telescopic airbag (2).

2. The airbag braking device according to claim 1, characterized in that: An airbag fixing structure is provided between the telescopic airbag (2) and the cylinder (1), and a connecting structure is provided between the telescopic airbag (2) and the brake pad (3).

3. The airbag braking device according to claim 2, characterized in that: The airbag fixing structure includes an airbag pressure plate (4) and multiple airbag fixing bolts (7). The airbag pressure plate (4) presses and fixes one end of the telescopic airbag (2) to the inside of the cylinder body (1) through the multiple airbag fixing bolts (7).

4. The airbag braking device according to claim 3, characterized in that: The connection structure includes a connecting plate (5) and multiple brake pad fixing bolts (6). The other end of the telescopic airbag (2) is connected and fixed to the brake pad (3) through the connecting plate (5) and multiple brake pad fixing bolts (6).

5. The airbag braking device according to claim 1, characterized in that: A cylinder fixing structure is provided between the two cylinders (1). The cylinder fixing structure includes an upper bolt groove (10), a lower threaded hole (11), and a cylinder connecting bolt (12). The upper cylinder (1) has an upper bolt groove (10) for inserting the cylinder connecting bolt (12) on its surface. The lower cylinder (1) has a lower threaded hole (11) for screwing the cylinder connecting bolt (12) through its surface. The threaded end of the cylinder connecting bolt (12) is inserted into the inner side of the upper bolt groove (10) and screwed into the lower threaded hole (11) to lock and fix the two cylinders (1).

6. The airbag braking device according to claim 5, characterized in that: The bottom surface of the lower cylinder (1) is provided with a movable sealing structure on one side of each lower threaded hole (11).

7. The airbag braking device according to claim 6, characterized in that: The movable sealing structure includes a protective cover (13) disposed on the bottom surface of the cylinder body (1) and on one side of the lower threaded hole (11). The protective cover (13) has an integral rotating seat (15) on its side. A T-shaped shaft (16) is fixed on the bottom surface of the cylinder body (1) relative to one side of each lower threaded hole (11). The rotating seat (15) is rotatably sleeved on the T-shaped shaft (16). The top surface of the protective cover (13) has an annular protrusion that matches the size of the lower threaded hole (11).

8. The airbag braking device according to claim 1, characterized in that: A gas passage sealing ring (9) is also provided at the through gas flow channel (8) of the contact surface of the two cylinders (1).

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