Crane braking device

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a crane braking device which comprises a bottom plate, and an adjusting arm and an auxiliary assembly integrating dismounting and braking are arranged on the bottom plate. Adjusting arms are arranged at the left end and the right end of the bottom plate, the adjusting arms at the left end and the right end are movably installed on a base on the bottom plate, and the auxiliary assemblies are installed in rectangular cavities in the adjusting arms. The auxiliary assembly comprises an adjusting frame, the adjusting frame is movably installed in a rectangular cavity of the left adjusting arm and the right adjusting arm through a rotating shaft, a guide groove is formed in the middle of the adjusting frame, a positive and negative tooth lead screw is arranged in the guide groove, and the distance between the two sets of arc-shaped clamping plates can be conveniently adjusted by arranging the positive and negative tooth lead screw in the guide groove of the adjusting frame and rotating the lead screw. Therefore, clamping of the arc-shaped blocks at the two ends of the brake arc plate is quickly released, the brake arc plate can be conveniently taken out of the arc-shaped groove, the replacement efficiency is greatly improved, the shutdown time of equipment is shortened, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field, concretely is a crane brake device. BACKGROUND

[0002] In the running process of hoisting equipment, the brake device plays a vital role, which is directly related to the safety and stability of hoisting operation.

[0003] At present, there are various types of crane brake devices on the market, which are mainly composed of brake shoe, brake arm, brake wheel and brake release, the inner side of brake shoe is attached with friction material, the brake shoe is driven by brake arm to tightly hold brake wheel to generate braking torque, however, in the long-term use process, the friction plate between brake wheel and brake shoe inner side is in friction consumption state for a long time, and needs to be frequently replaced, but when replacing, the disassembly and replacement work of brake arc plate is extremely inconvenient, maintenance personnel often need to spend a lot of time and energy, with the help of various professional tools, even the replacement of brake arc plate can be completed by disassembling part of the structure of the whole brake device, therefore, the utility model provides a crane brake device to solve the above problems. SUMMARY

[0004] The utility model aims at providing a crane brake device to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a crane brake device, including bottom plate, being equipped with adjusting arm and auxiliary assembly on the bottom plate,

[0006] The bottom plate is equipped with adjusting arm on left and right ends, the adjusting arm on left and right ends is movably installed on the base on the bottom plate, and the auxiliary assembly is installed on the adjusting arm.

[0007] The auxiliary assembly includes adjusting frame, the adjusting frame is movably installed in the rectangular cavity of the adjusting arm through the rotating shaft, the adjusting frame is provided with guide groove in the middle, the guide groove is provided with positive and negative toothed rod, the positive and negative toothed rod installs two groups of arc-shaped clamping plates in the guide groove, the opposite ends of the two groups of arc-shaped clamping plates are provided with arc-shaped grooves, and the arc-shaped grooves on left and right ends are commonly provided with brake arc plates.

[0008] Preferably, the brake arc plate is provided with arc-shaped blocks at both ends, and the brake arc plate is embedded in the arc-shaped grooves of the arc-shaped clamping plates on left and right ends through the arc-shaped blocks at both ends.

[0009] Preferably, the brake end surface of the brake arc plate is provided with friction threads.

[0010] Preferably, four sets of limiting blocks are arranged on the adjusting frame, and the four sets of limiting blocks are arranged on the adjusting frame through positioning blocks respectively.

[0011] Preferably, the limiting blocks are arranged on the positioning blocks in an angle-adjustable mode through adjusting pins.

[0012] Preferably, a brake releasing device is arranged on the bottom plate, and the brake releasing device is connected with the left and right adjusting arms through stretching arms and connecting rods, so that the left and right adjusting arms can be driven to move coordinately to realize the brake releasing and braking operations of the braking device.

[0013] Compared with the prior art, the adjusting device has the following beneficial effects:

[0014] (1) By arranging the forward and reverse toothed rods in the adjusting frame guide grooves, the distance between the two sets of arc-shaped clamping plates can be conveniently adjusted by rotating the threaded rods, so that the clamping of the arc-shaped blocks at the two ends of the braking arc plate is quickly released, the braking arc plate can be conveniently taken out from the arc-shaped grooves, the replacement efficiency is greatly improved, the equipment downtime is reduced, and the maintenance cost is reduced.

[0015] (2) By arranging the friction threads on the braking end face of the braking arc plate, the friction force between the braking arc plate and the braking object is increased, the braking effect is significantly improved, meanwhile, the four sets of angle-adjustable limiting blocks arranged on the adjusting frame through the positioning blocks can secondarily resist and limit the arc-shaped clamping plates, the displacement of the arc-shaped clamping plates during braking is effectively prevented, and the reliability and stability of the braking are further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model.

[0017] Figure 2 It is a whole structure schematic view of the auxiliary assembly of the utility model.

[0018] Figure 3 It is an installation structure schematic view of the braking arc plate of the utility model.

[0019] Figure 4 It is an installation structure schematic view of the limiting block of the utility model.

[0020] In the drawing: 1, bottom plate; 11, base; 2, adjusting arm; 21, rotating shaft; 3, adjusting frame; 31, guide groove; 32, forward and reverse toothed rod; 33, arc-shaped clamping plate; 331, arc-shaped groove; 34, braking arc plate; 341, arc-shaped block; 342, friction thread; 35, positioning block; 36, limiting block; 4, connecting rod; 5, stretching arm; 6, brake releasing device. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0022] Please refer to Figures 1 to 4 The utility model provides a kind of crane brake device, including bottom plate 1, and bottom plate 1 is equipped with adjusting arm 2 and the auxiliary assembly of dismounting brake integration;Bottom plate 1 is equipped with adjusting arm 2 in left and right ends, and the adjusting arm 2 in left and right ends is movably installed on the base 11 on bottom plate 1, and auxiliary assembly is installed on adjusting arm 2;Auxiliary assembly includes adjusting frame 3, adjusting frame 3 is movably installed in the rectangular cavity of left and right adjusting arm 2 by pivot 21, adjusting frame 3 is equipped with guide groove 31 in middle, guide groove 31 is equipped with positive and negative toothed rod 32, positive and negative toothed rod 32 installs two groups of arc-shaped clamping plates 33 in guide groove 31, two groups of arc-shaped clamping plates 33 are equipped with arc-shaped groove 331 in opposite end, and brake arc plate 34 is jointly installed in left and right end arc-shaped groove 331, by being provided with positive and negative toothed rod 32 in the guide groove 31 of adjusting frame 3, rotating positive and negative toothed rod 32 can conveniently adjust the distance between two groups of arc-shaped clamping plates 33, to quickly loosen the clamping of arc-shaped block 341 in both ends of brake arc plate 34, so that brake arc plate 34 can be conveniently taken out from arc-shaped groove 331, greatly improves replacement efficiency, reduces equipment downtime, and reduces maintenance cost.

[0023] Please refer to Figures 1 to 4 Arc-shaped block 341 is provided at both ends of brake arc plate 34, and brake arc plate 34 is embedded in the arc-shaped groove 331 of left and right two arc-shaped clamping plates 33 through the arc-shaped block 341 at both ends, and the arc-shaped block 341 at both ends of brake arc plate 34 is embedded in the arc-shaped groove 331 of arc-shaped clamping plate 33, so that the installation of brake arc plate 34 is more convenient, and brake arc plate 34 can be accurately positioned between arc-shaped clamping plate 33, to ensure the correct position of brake arc plate 34 in brake device, and further improve the braking effect by being provided with friction thread 342 on the braking end face of brake arc plate 34.

[0024] Please refer to Figures 1 to 4The four sets of limiting blocks 36 are respectively installed on the adjusting frame 3 through the positioning blocks 35, and the limiting blocks 36 are installed on the positioning blocks 35 in an angle-adjustable manner through adjusting pins. During braking, the braking arc plate 34 is in contact with the braking object and generates a large friction force and impact force, which may cause the arc-shaped clamping plate 33 to displace or shake, affecting the braking effect. The limiting blocks 36 can block and limit the arc-shaped clamping plate 33, ensure that the arc-shaped clamping plate 33 maintains a stable position during braking, and enable the braking arc plate 34 to be closely attached to the braking object at all times, thereby ensuring stable braking torque output.

[0025] Please refer to Figures 1 to 4 The bottom plate 1 is also provided with a brake release device 6, which is connected through the stretching arm 5 and the connecting rod 4 and can drive the left and right adjusting arms 2 to move cooperatively to realize the brake release and braking operation of the braking device.

[0026] When the crane needs to be braked, the brake release device 6 starts to work. The brake release device 6 pulls the right adjusting arm 2 through the stretching arm 5, and the right adjusting arm 2 rotates under the action of the stretching arm 5. Since the right adjusting arm 2 is connected to the left adjusting arm 2 through the connecting rod 4, the left adjusting arm 2 moves cooperatively, so that the left and right adjusting arms 2 move towards each other at the same time. With the rotation of the left and right adjusting arms 2, the auxiliary assembly installed in the rectangular cavity of the adjusting arm 2 also moves, and the adjusting frame 3 rotates adaptively under the action of the rotating shaft 21, so that the braking arc plate 34 gradually approaches the braking shaft. Finally, the braking arc plate 34 is in close contact with the braking shaft, a braking torque is generated, and the crane is braked.

[0027] When the braking arc plate 34 needs to be replaced due to wear or the like, the angle of the limiting block 36 is first adjusted through the adjusting pin so that the limiting block 36 no longer limits the arc-shaped clamping plate 33. The positive and negative threaded rod 32 is rotated. Since the positive and negative threaded rod 32 cooperates with the two sets of arc-shaped clamping plates 33, rotating the positive and negative threaded rod 32 will make the two sets of arc-shaped clamping plates 33 move in opposite directions along the guide groove 31, thereby loosening the clamping of the arc-shaped blocks 341 at both ends of the braking arc plate 34. When the arc-shaped clamping plate 33 is completely loosened, the braking arc plate 34 can be removed from the arc-shaped groove 331. The arc-shaped blocks 341 of the new braking arc plate 34 are aligned with the arc-shaped grooves 331 of the arc-shaped clamping plates 33, and then the positive and negative threaded rod 32 is reversely rotated to make the two sets of arc-shaped clamping plates 33 move towards each other and clamp the new braking arc plate 34. Finally, the angle of the limiting block 36 is adjusted again through the adjusting pin to limit the arc-shaped clamping plate 33 for the second time, thereby ensuring that the braking arc plate 34 is firmly installed.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crane brake device, comprising a base plate (1), the base plate (1) is provided with adjusting arms (2) and auxiliary assemblies, characterized in that: the base plate (1) is provided with adjusting arms (2) at left and right ends, the adjusting arms (2) at left and right ends are movably installed on the base (11) of the base plate (1), and the auxiliary assemblies are installed on the adjusting arms (2); the auxiliary assemblies comprise adjusting frames (3), the adjusting frames (3) are movably installed in the rectangular cavities of the adjusting arms (2) through pivots (21), the adjusting frames (3) are provided with guide grooves (31) in the middle, the guide grooves (31) are provided with positive and negative toothed rods (32), the positive and negative toothed rods (32) install two groups of arc-shaped clamping plates (33) in the guide grooves (31), the arc-shaped clamping plates (33) are provided with arc-shaped grooves (331) at opposite ends, and the arc-shaped grooves (331) at left and right ends are jointly provided with brake arc plates (34).

2. A crane brake device according to claim 1, characterised in that: The brake arc plates (34) are provided with arc-shaped blocks (341) at two ends, and the brake arc plates (34) are embedded in the arc-shaped grooves (331) of the arc-shaped clamping plates (33) at left and right ends through the arc-shaped blocks (341) at two ends.

3. A crane brake arrangement according to claim 2, characterised in that: The brake end faces of the brake arc plates (34) are provided with friction threads (342).

4. A crane brake device according to claim 1, characterised in that: The adjusting frames (3) are further provided with four groups of limiting blocks (36), and the limiting blocks (36) are installed on the adjusting frames (3) through positioning blocks (35) respectively.

5. A crane brake device according to claim 4, characterised in that: The limiting blocks (36) are installed on the positioning blocks (35) in an adjustable angle manner through adjusting pins.

6. A crane brake device according to claim 1, characterised in that: The base plate (1) is further provided with brake release devices (6), the brake release devices (6) are connected through stretching arms (5) and connecting rods (4), can drive the left and right adjusting arms (2) to act in concert, and realize the brake release and brake operation of the brake device.

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