Quick brake

Abstract

The utility model discloses a quick brake which comprises a magnetic shell, an armature is arranged on the magnetic shell, a friction disc is arranged above the armature, and the friction disc can only move up and down relative to the armature. The magnetic shell is provided with a driving assembly for driving the friction disc to move up and down, the driving assembly at least comprises movable bolts arranged on the two sides of the magnetic shell in a sliding mode, the top of each movable bolt is provided with a large-diameter part, and the diameter of each large-diameter part is larger than that of an opening in the friction disc. The brake has the advantages that the design is exquisite, the brake can be used in all environments and temperatures, operation is easy and convenient, the friction disc can be driven to move downwards by driving the movable bolt to move downwards, the moving mode is stable and reliable, disassembly, replacement and maintenance are convenient, work efficiency is greatly improved, cost is low, and the brake is suitable for popularization and application. The method is convenient for batch use and has wide applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, and particularly relates to a quick-acting brake. Background Art

[0002] The spring-loaded electromagnetic safety brake is one of many types of brakes. Due to its small volume, large braking torque, and convenient installation and debugging, it is widely used in many fields such as lifting equipment, ports, metallurgy, battery cars, and wind power generation.

[0003] For example, the authorized announcement number CN210686770U discloses a self-balancing brake that can prevent harmful friction caused by vertical installation, including a flange, a rotor, an armature, and a stator arranged in sequence from near to far from the motor. A coil and a brake spring are embedded on the end face of the stator close to the armature. A shaft sleeve is connected inside the rotor. The shaft sleeve is provided with a reduced-diameter protruding end extending into the flange. A support spring is sleeved on the reduced-diameter protruding end of the shaft sleeve. The rotor is supported on the support spring, and the support spring is clamped between the rotor and a support member. The support member is clamped on the reduced-diameter protruding end of the shaft sleeve. However, this brake uses electromagnetic braking, and electromagnetic braking has specific limitations on the environment and temperature requirements, cannot meet all occasions, and its price is expensive, which is not conducive to batch use and has great limitations. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a quick-acting brake.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A quick-acting brake includes a magnetic shell, an armature is provided on the magnetic shell, a friction disc is provided above the armature, and the friction disc can only move up and down relative to the armature; a driving component for driving the friction disc to move up and down is provided on the magnetic shell. The driving component at least includes movable bolts slidably arranged on both sides of the magnetic shell. A large-diameter portion is provided at the top of the movable bolt, and the diameter of the large-diameter portion is greater than the diameter of the opening on the friction disc.

[0007] Preferably, the driving component further includes fixed blocks fixed on both sides of the magnetic shell. A linkage rod is pivotally provided on the fixed block. One end of the linkage rod is pivotally connected to the movable bolt, and the other end is pivotally connected to a driving rod arranged on the fixed block.

[0008] Preferably, the driving rod is in a semi-circular arc shape, and its diameter is greater than the diameter of the outer contour of the magnetic shell. A release rod is fixedly provided on the end side of the driving rod away from the fixed block.

[0009] Preferably, a return spring is sleeved on the movable bolt. One end of the return spring abuts against the armature, and the other end abuts against the large-diameter portion.

[0010] Preferably, a set of limit bolts are evenly distributed around the magnetic shell. The armature and the friction disc are sleeved on the limit bolts. At least a part of the limit bolts extends outside the friction disc, and a limit nut screwed thereon is provided on the limit bolts extending outside the friction disc.

[0011] Preferably, six of the limit bolts are evenly distributed on the outer circumferential surface of the magnetic shell.

[0012] The beneficial effects of the present utility model are mainly reflected in:

[0013] 1. Exquisite design. This brake can be used in all environments and temperatures. It is simple and convenient to operate. Driving the movable bolt to move downward can drive the friction disc to move downward. This moving method is stable and reliable, convenient for disassembly, replacement and maintenance, greatly improving work efficiency, and having low cost and being convenient for batch use, with wide applicability.

[0014] 2. Driving the movable bolt to move downward through the driving rod and the linkage rod. This connection method adopts the lever principle, which can save the most effort, be convenient for operation, and reduce the working intensity.

[0015] 3. The setting of the return spring can reset the movable bolt in time after braking, separating the friction disc from the armature, facilitating the next use and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the present utility model will be further described below in conjunction with the drawings:

[0017] Figure 1 : Top view of the preferred embodiment of the present utility model;

[0018] Figure 2 : Front view of the preferred embodiment of the present utility model;

[0019] Figure 3 : Figure 1 Cross-sectional view taken along B-B in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments are not limited to the present utility model, and structural, method, or functional transformations made by those of ordinary skill in the art based on these embodiments are all included within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0023] As Figures 1 to 3 shown, the present utility model discloses a quick-acting brake, which includes a magnetic shell 1. An armature 2 is provided on the magnetic shell 1. A friction disc 3 is provided above the armature 2. The friction disc 3 can only move up and down relative to the armature 2. When the friction disc 3 is in close contact with the armature 2, frictional force can be generated between the two to establish a braking state.

[0024] A driving assembly 4 for driving the friction disc 3 to move up and down is provided on the magnetic shell 1. The driving assembly 4 at least includes movable bolts 41 slidably provided on both sides of the magnetic shell 1. A large-diameter portion 42 is provided at the top of the movable bolt 41. The diameter of the large-diameter portion 42 is larger than the diameter of the opening 31 on the friction disc 3. When the movable bolt 41 moves downward, the friction disc 3 can be driven to move downward. This moving method is stable and reliable, facilitating disassembly, replacement and maintenance, greatly improving work efficiency, having low cost, being convenient for batch use, and having wide applicability.

[0025] The driving assembly 4 further includes fixing blocks 43 fixed on both sides of the magnetic shell 1. A linkage rod 44 is pivotally provided on the fixing blocks 43. One end of the linkage rod 44 is pivotally connected to the movable bolt 41, and the other end is pivotally connected to a driving rod 45 provided on the fixing blocks 43. The driving rod 45 is in a semi-circular arc shape, and its diameter is larger than the outer contour diameter of the magnetic shell 1. A release rod 46 is fixedly provided on the end side of the driving rod 45 away from the fixing blocks 43. By pulling the release rod 46, the movable bolt 41 can be driven to move downward through the driving rod and the linkage rod 33. This connection method adopts the lever principle, which can save the most effort, is convenient for operation, and reduces the working intensity.

[0026] A return spring 47 is sleeved on the movable bolt 41. One end of the return spring 47 abuts against the armature 2, and the other end abuts against the large-diameter portion 42. The arrangement of the return spring 47 can reset the movable bolt 41 in time after braking is completed, so that the friction disc is separated from the armature, facilitating the next use and improving work efficiency.

[0027] A set of limit bolts 48 are evenly distributed around the magnetic shell 1. In this preferred embodiment, six such limit bolts 48 are evenly distributed on the outer circumferential surface of the magnetic shell 1. Of course, other numbers of the limit bolts 48 can also be used, which all fall within the protection scope of the present invention and will not be elaborated here. The armature 2 and the friction disc 3 are sleeved on the limit bolts 48. At least part of the limit bolts 48 extends outside the friction disc 3, and limit nuts 49 screwed thereto are provided on the limit bolts 48 extending outside the friction disc 3.

[0028] It should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0029] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick brake, comprising a magnetic housing (1), characterized in that: An armature (2) is provided on the magnetic shell (1), a friction disk (3) is provided above the armature (2), and the friction disk (3) can only move up and down relative to the armature (2); a driving assembly (4) is provided on the magnetic shell (1) for driving the friction disk (3) to move up and down, and the driving assembly (4) at least comprises a movable bolt (41) slidably arranged on both sides of the magnetic shell (1), and a large diameter portion (42) is provided on the top of the movable bolt (41), and the diameter of the large diameter portion (42) is larger than the diameter of the opening (31) on the friction disk (3).

2. The quick brake according to claim 1, characterized in that: The driving assembly (4) further comprises a fixing block (43) fixedly mounted on both sides of the magnetic shell (1); a connecting rod (44) is pivotally mounted on the fixing block (43); one end of the connecting rod (44) is pivotally connected to the movable bolt (41); and the other end of the connecting rod is pivotally mounted on the fixing block (43) and connected to a driving rod (45) mounted on the fixing block (43).

3. The quick brake according to claim 2, characterized in that: The driving rod (45) is in a semi-arc shape, and its diameter is larger than the diameter of the outer contour of the magnetic shell (1). A release rod (46) is fixedly provided on the end of the driving rod (45) away from the fixing block (43).

4. The quick brake according to claim 3, characterized in that: A return spring (47) is sleeved on the movable bolt (41), one end of the return spring (47) abuts against the armature (2), and the other end abuts against the large diameter portion (42).

5. The quick brake according to claim 4, characterized in that: A group of limiting bolts (48) are evenly distributed around the magnetic shell (1), the armature (2) and the friction plate (3) are sleeved on the limiting bolts (48), the limiting bolts (48) at least partially extend to the outside of the friction plate (3), and the limiting bolts (48) extending to the outside of the friction plate (3) are provided with limiting nuts (49) threadedly connected thereto.

6. The quick brake according to claim 5, characterized in that: Six limiting bolts (48) are evenly distributed on the outer circumferential surface of the magnetic shell (1).

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