Low-loss brake

Abstract

The utility model discloses a low-loss brake and relates to the technical field of brakes. The device comprises a bottom plate, the upper surface of the bottom plate is rotationally connected with two brake arms, one side of each brake arm is rotationally connected with a brake block assembly, the upper end of one brake arm is rotationally connected with a transmission plate, a connecting rod is movably inserted in the middle of the transmission plate, the outer surface of a lead screw is in threaded connection with a threaded groove, and the outer surface of the lead screw is in threaded connection with the threaded groove. The side, away from the lead screw, of the transmission plate is fixedly connected with a brake rope, the outer surface of the brake rope is rotationally connected with one side of the bottom plate, and one side of one stabilizing piece is rotationally connected with one side of the other stabilizing piece. Therefore, the gap between the brake pad and the brake drum can be conveniently adjusted, and the durability of the brake pad is further improved through the action of the heat insulation plate and the heat conduction groove.

Description

Technical Field

[0001] This utility model relates to the field of brake technology, specifically a low-loss brake. Background Technology

[0002] A brake is a mechanical component that slows down, stops, or keeps a moving part at a stop. Commonly known as a brake or caliper, brakes are widely used in industry, such as in mine hoists and elevators. Electromagnetic brakes serve as ideal automated actuators, capable of rapid response and motion control. Furthermore, brakes are also used in the automotive industry. Service brakes, typically referring to the foot brake or handbrake, are used to slow down a vehicle or stop it within the shortest possible distance, maintaining a stable speed.

[0003] Traditional brakes make it difficult to adjust the gap between the brake pads and the brake drum. If the gap is too small, the brake pads will constantly rub slightly against the brake components, generating unnecessary resistance and causing premature wear of the parts. In addition, traditional brake pads generate a lot of heat when rubbing against the brake drum for a long time, which accelerates the wear of the brake pads and results in higher losses. Utility Model Content

[0004] In order to solve the problems of uncontrollable gap between brake pads and brake drum and easy wear of brake pads, the purpose of this utility model is to provide a low-loss brake.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a low-loss brake, comprising a base plate, two brake arms rotatably connected to the upper surface of the base plate, brake block assemblies rotatably connected to one side of each brake arm, a transmission plate rotatably connected to the upper end of one of the brake arms, a connecting rod movably inserted into the middle of the transmission plate, a lead screw rotatably connected to one side of the transmission plate, a connector rotatably provided at the upper end of the other brake arm, a threaded groove formed on the outer surface of the connector, the outer surface of the lead screw being threadedly connected to the threaded groove, a brake rope fixedly connected to the side of the transmission plate away from the lead screw, the outer surface of the brake rope being rotatably connected to one side of the base plate, and a stabilizing member fixedly connected to one side of the lower end of each brake arm, one side of the stabilizing member being rotatably connected to one side of the other stabilizing member.

[0006] Preferably, the brake block assembly includes a support back plate, one side of which is rotatably connected to the brake arm, and a heat insulation plate is fixedly installed on the other side of the support back plate. A brake pad is fixedly connected to one side of the heat insulation plate, and heat conduction grooves are symmetrically formed on the outer surface of the brake pad. Multiple through grooves communicating with the heat conduction grooves are formed at the end of the brake pad.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This utility model sets two brake arms to clamp and rotate around a point, driving two brake blocks to rub and decelerate the brake drum. Under the adjustment of the rotation of the lead screw, the clamping range of the two brake arms is controlled, realizing the adjustment of the gap between the brake blocks and the brake drum. Furthermore, the heat insulation plate and heat conduction groove in the brake block assembly reduce the heat generation of the brake pads, further reducing the frictional wear of the brake pads. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0012] Figure 3 This is a schematic diagram of the brake block assembly structure of this utility model.

[0013] In the diagram: 1. Base plate; 2. Brake block assembly; 11. Brake arm; 12. Transmission plate; 13. Connecting rod; 14. Spring; 15. Brake rope; 16. Stabilizer; 17. Lead screw; 18. Threaded groove; 19. Connector; 20. Handwheel; 21. Roller; 22. Connecting groove; 23. Connecting pin; 24. Support back plate; 25. Heat insulation plate; 26. Brake pad; 27. Heat conduction groove; 28. Through groove; 29. ​​Strip groove. Detailed Implementation

[0014] 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.

[0015] Example: Figure 1-3As shown, this utility model provides a low-loss brake, including a base plate 1. Two brake arms 11 are rotatably connected to the upper surface of the base plate 1. Each brake arm 11 is rotatably connected to a brake block assembly 2 on one side. The brake arms 11 and brake block assemblies 2 are symmetrically distributed. The symmetrical distribution of the brake arms 11 and brake block assemblies 2 allows the brake arms 11 on both sides to effectively clamp a midpoint during transmission, maximizing the same clamping force on both sides. A transmission plate 12 is rotatably connected to the upper end of one brake arm 11. A connecting rod 13 is movably inserted into the middle of the transmission plate 12. A spring 14 is fixedly sleeved on the outer surface of the connecting rod 13. A rotating shaft is rotatably connected to one side of one brake arm 11, and the outer surface of the rotating shaft is fixedly connected to the connecting rod 13. The connecting rod 13 and the spring 14 can help the transmission plate 12 to provide a certain buffer during the downward tightening process, providing a downward rotational support for the transmission plate 12. Furthermore, the spring 14 facilitates the reset movement of the transmission plate 12.

[0016] A lead screw 17 is rotatably connected to one side of the transmission plate 12. A handwheel 20 is fixedly sleeved at one end of the lead screw 17. The handwheel 20 facilitates the operator to rotate the lead screw 17. A connector 19 is rotatably provided at the upper end of the other brake arm 11. A threaded groove 18 is opened on the outer surface of the connector 19. The outer surface of the lead screw 17 is threadedly connected to the threaded groove 18. A brake rope 15 is fixedly connected to the side of the transmission plate 12 away from the lead screw 17. The outer surface of the brake rope 15 is rotatably connected to one side of the base plate 1. A roller 21 is rotatably connected to the side of the base plate 1 close to the brake rope 15. The outer surface of the roller 21 abuts against the outer surface of the brake rope 15. The roller 21 facilitates the application of downward pulling force to the base plate 1 during the pulling of the brake rope 15, making the tightening movement of the brake rope 15 smoother.

[0017] Stabilizers 16 are fixedly connected to one side of the lower end of each brake arm 11. Each end of the stabilizer 16 has a connecting groove 22. A connecting pin 23 is movably inserted between the connecting grooves 22. The stabilizers 16 are movably connected to each other through the connecting pin 23 inserted in the connecting groove 22 on one side. There is a horizontal clearance between the connecting groove 22 and the connecting pin 23, which provides reasonable movement for the rotation of the brake arms 11 on both sides. One side of one stabilizer 16 is rotatably connected to the other side of the stabilizer 16. Under the tightening of the brake rope 15, the transmission plate 12 is driven to rotate downward. Thus, the transmission plate 12 and the lead screw 17 drive the brake arms 11 on both sides and the brake block assembly 2 to perform synchronous clamping movement, realizing frictional deceleration of the brake drum. Furthermore, by rotating the lead screw 17, the gap between the two brake block assemblies 2 and the brake drum can be adjusted appropriately to reduce unnecessary resistance and ensure sensitive and efficient braking.

[0018] The brake pad assembly 2 includes a support back plate 24. One side of the support back plate 24 is rotatably connected to the brake arm 11, and a heat insulation plate 25 is fixedly installed on the other side of the support back plate 24. A brake pad 26 is fixedly connected to one side of the heat insulation plate 25. The outer surface of the brake pad 26 is symmetrically provided with heat-conducting grooves 27 and multiple strip grooves 29. The multiple strip grooves 29 are horizontally and equally spaced. The equally spaced strip grooves 29 increase the contact friction of the brake pad 26 during contact with the brake drum, making the friction more uniform and stable. The ends of the brake pad 26 are provided with multiple through grooves 28 that communicate with the heat-conducting grooves 27. The heat insulation plate 25 in the brake pad assembly 2 blocks the heat generated by the friction of the brake pad 26, reducing heat transfer. Through the heat-conducting grooves 27 and through grooves 28 in the brake pad 26, the heat generated by the brake pad 26 during the friction process enters from the heat-conducting grooves 27 and is discharged from the through grooves 28 at the upper and lower ends. The heat is quickly dissipated through the through grooves 28, effectively preventing the brake pad 26 from overheating.

[0019] Working principle: When braking is required, the operator pulls the brake rope 15. The brake rope 15 rotates the transmission plate 12 via the rotation of the roller 21. The rotating transmission plate 12 drives the two brake arms 11 to rotate via the shaft and lead screw 17 at one end. The two brake arms 11 are connected to each other by a stabilizing member 16 on one side to maintain rotation at a fixed point, thereby driving the two brake block assemblies 2 to perform relative clamping movements. This causes one side of the two brake block assemblies 2 to rub against the outer surface of the brake drum. The degree of friction increases with the pulling of the brake rope 15. As the friction between the two brake block assemblies 2 and the brake drum increases, the wheels are braked. After braking, the connecting rod 13, through the force of the spring 14, will push the transmission plate 12 upward and rotate, thereby driving the two brake arms 11 to reset. The operator can rotate the screw 17 through the handwheel 20, which will drive the connecting head 19 to move threadedly through the threaded groove 18 in the connecting head 19, and simultaneously drive the two brake arms 11 to adjust the clamping range, so as to control the gap distance between the two brake block assemblies 2 and the brake drum and reduce unnecessary resistance.

[0020] The heat insulation plate 25 in the brake pad assembly 2 blocks the heat generated by the friction of the brake pad 26, reducing heat transfer. The heat generated by the brake pad 26 during friction is discharged through the heat conduction groove 27 and the through groove 28 at the upper and lower ends after entering through the heat conduction groove 27. The heat is quickly dissipated through the through groove 28, effectively preventing the brake pad 26 from overheating. The multiple strip grooves 29 make the friction force generated when the brake pad 26 contacts the brake drum more uniform and stable, increasing the friction force.

[0021] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A low-loss brake, comprising a base plate (1), characterized in that: Two brake arms (11) are rotatably connected to the upper surface of the base plate (1). A brake block assembly (2) is rotatably connected to one side of each brake arm (11). A transmission plate (12) is rotatably connected to the upper end of one of the brake arms (11). A connecting rod (13) is movably inserted into the middle of the transmission plate (12). A lead screw (17) is rotatably connected to one side of the transmission plate (12). A connector (19) is rotatably provided at the upper end of the other brake arm (11). A threaded groove (18) is opened on the outer surface of the connector (19). The outer surface of the lead screw (17) is threadedly connected to the threaded groove (18). A brake rope (15) is fixedly connected to the side of the transmission plate (12) away from the lead screw (17). The outer surface of the brake rope (15) is rotatably connected to one side of the base plate (1). A stabilizing member (16) is fixedly connected to one side of each brake arm (11). One side of one stabilizing member (16) is rotatably connected to one side of the other stabilizing member (16).

2. The low-loss brake as described in claim 1, characterized in that, The brake block assembly (2) includes a support back plate (24), one side of which is rotatably connected to the brake arm (11), and a heat insulation plate (25) is fixedly installed on the other side of the support back plate (24). A brake pad (26) is fixedly connected to one side of the heat insulation plate (25). The outer surface of the brake pad (26) is symmetrically provided with heat conduction grooves (27), and the end of the brake pad (26) is provided with multiple through grooves (28) communicating with the heat conduction grooves (27).

3. A low-loss brake as described in claim 1, characterized in that, Each end of the stabilizer (16) is provided with a connecting groove (22), and a connecting pin (23) is movably inserted between the connecting grooves (22).

4. A low-loss brake as described in claim 1, characterized in that, A roller (21) is rotatably connected to the side of the base plate (1) near the brake rope (15), and the outer surface of the roller (21) abuts against the outer surface of the brake rope (15).

5. A low-loss brake as described in claim 1, characterized in that, A handwheel (20) is fixedly sleeved at one end of the lead screw (17).

6. A low-loss brake as described in claim 1, characterized in that, A spring (14) is fixedly sleeved on the outer surface of the connecting rod (13), and a rotating shaft is rotatably connected to one side of one of the brake arms (11), and the outer surface of the rotating shaft is fixedly connected to the connecting rod (13).

7. A low-loss brake as described in claim 2, characterized in that, The outer surface of the brake pad (26) is provided with multiple strip grooves (29), and the multiple strip grooves (29) are distributed horizontally at equal intervals.

8. A low-loss brake as described in claim 1, characterized in that, The brake arm (11) and the brake block assembly (2) are both symmetrically distributed.

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