Winch brake structure

Abstract

The utility model discloses a winch brake structure, and belongs to the technical field of brakes. Comprising a winch support, a rope rotating disc is arranged at the end of the winch support, a first transmission gear is arranged on the side of the rope rotating disc, a second transmission gear is arranged on the side of the inner wall of the winch support, the first transmission gear and the second transmission gear are meshed with each other, and a rotating block is arranged at the end of the second transmission gear. The rotating block penetrates through the winch support and extends out of the winch support, a rotating crank is arranged on the side of the rotating block, and a supporting shaft rod is arranged at the end of the second transmission gear. The rope can penetrate through the space between the fixed limiting roller and the movable limiting roller, the rope is limited through the fixed limiting roller and the movable limiting roller, friction caused by swinging between the rope and the supporting shaft rod and between the rope and the fixed shaft rod when goods shake is avoided, the abrasion degree of the rope in use is reduced, and the service life of the rope is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a winch brake structure. Background Art

[0002] The winch is operated by hand to wind the rope around the drum, and the other end of the rope is connected to the cargo, so the cargo can be pulled in this way. The hand-cranked winch has a built-in brake mechanism to prevent the cargo from falling off after the person releases the crank, making it more convenient to pull the cargo.

[0003] However, the existing winch disc does not limit the range of the rope when in use, so when pulling the goods, when the goods shake, it is easy to cause the rope and the bracket to swing left and right, causing wear, thereby affecting the service life of the rope. For this reason, we propose a winch brake structure to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art involved in the background technology and proposes a winch brake structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A winch brake structure comprises a winch bracket, a rope turntable is arranged at the end of the winch bracket, a first transmission gear is arranged on the side of the rope turntable, a second transmission gear is arranged on the side of the inner wall of the winch bracket, the first transmission gear and the second transmission gear are meshed with each other, a rotating block is arranged at the end of the second transmission gear, the rotating block passes through the winch bracket and extends to the outside of the winch bracket, a rotating crank is arranged on the side of the rotating block, a supporting shaft is arranged at the end of the second transmission gear, the other end of the supporting shaft is fixedly connected to the inner wall of the winch bracket, a fixed limiting roller is sleeved on the outside of the supporting shaft, a fixed shaft is arranged on the inner wall of the winch bracket, and a movable limiting roller is sleeved at the middle position of the fixed shaft;

[0007] The rope can be passed between the fixed limiting roller and the movable limiting roller, and the movable range of the rope is limited by the fixed limiting roller and the movable limiting roller to avoid friction between the rope and the supporting shaft rod or the fixed shaft rod after the rope swings, thereby reducing the wear of the rope and increasing the service life of the rope.

[0008] Preferably, the diameter of the second transmission gear is smaller than the diameter of the first transmission gear;

[0009] This makes turning the crank handle less labor-intensive, resulting in better rope tension.

[0010] Preferably, both sides of the fixed limiting roller are provided with limiting baffles, and the limiting baffles limit the fixed limiting roller. The limiting baffles are provided in multiple groups, and one group of limiting baffles is located on the side of the movable limiting roller, and another group of limiting baffles is located outside the fixed shaft and away from the other side of the movable limiting roller;

[0011] The fixed limiting roller can be limited, and the movable limiting roller can slide outside the fixed shaft rod, so that after the movable limiting roller slides, the fixed limiting roller and the movable limiting roller are staggered, thereby facilitating the rope to be disengaged and thus facilitating the replacement of the rope.

[0012] Preferably, a return spring is sleeved on the outside of the fixed shaft, one end of the return spring is fixedly connected to the limit baffle, and the other end of the return spring is connected to a rotating disk, and the rotating disk is sleeved on the outside of the fixed shaft;

[0013] The return spring can push the rotating disk so that the rotating disk pushes the movable limiting roller to approach the limiting baffle on the other side, so that the fixed limiting roller and the movable limiting roller correspond to each other, which is convenient for limiting and fixing the rope.

[0014] Preferably, the end of the fixed shaft is sleeved with a rotating sleeve, the end of the rotating sleeve is provided with a mounting block, the end of the mounting block is provided with a limiting insert, the limiting insert is located above the second transmission gear, and the limiting insert can be meshed with the second transmission gear;

[0015] The mounting block can be rotated by the rotating sleeve, thereby driving the limiting insert to be embedded into or disengaged from the teeth of the second transmission gear, so that the second transmission gear can be rotated or limited.

[0016] Preferably, the teeth on the second transmission gear are inclined, and the end of the limiting insert is inclined, so that the second transmission gear can rotate in one direction;

[0017] The second transmission gear can be retracted and rotated, and after the rotation, the mounting block drives the limiting block to be embedded in the teeth of the second transmission gear, so as to avoid the situation in which the second transmission gear rotates in the opposite direction after the personnel let go and causes the goods to fall off, making it easier for the personnel to pull the goods.

[0018] Preferably, a protrusion is provided at the tail of the rotating sleeve, and a protrusion is also provided at the side of the winch bracket, and a supporting spring is provided between the two groups of protrusions;

[0019] The support spring can support the rotating sleeve, so that the rotating sleeve drives the mounting block to rotate, so that the mounting block can better drive the limiting insert to be embedded in the second transmission gear to complete the limiting.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model allows the rope to pass between the fixed limiting roller and the movable limiting roller, and the rope is limited by the fixed limiting roller and the movable limiting roller to avoid friction caused by the rope swinging between the rope and the supporting shaft rod and the fixed shaft rod when the cargo shakes, thereby reducing the wear of the rope and extending the service life of the rope.

[0022] 2. The utility model can make the inclined surface of the second transmission gear push the limit block to move when the second transmission gear is retracted and rotated, so that the installation block can be rotated, and then the rotating sleeve and the installation block are driven to restore by the fixed limit roller, so that the limit block is re-embedded into the teeth of the second transmission gear for limiting, so that the second transmission gear can only rotate in one direction, which can prevent the rope from loosening and the cargo from falling off after the person lets go. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a winch brake structure proposed by the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of a front cross-sectional structure;

[0025] Figure 3 for Figure 1 A schematic diagram of the front cross-sectional structure at the second viewing angle;

[0026] Figure 4 for Figure 2 Schematic diagram of the structure of the fixed shaft and the supporting shaft.

[0027] In the figure: 1. winch bracket; 2. rope turntable; 3. first transmission gear; 4. second transmission gear; 5. rotating block; 6. rotating crank; 7. fixed shaft; 8. rotating sleeve; 9. mounting block; 10. limiting insert; 11. supporting spring; 12. supporting shaft; 13. limiting baffle; 14. fixed limiting roller; 15. movable limiting roller; 16. return spring; 17. rotating disk. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-4A winch brake structure is shown, in which a rope turntable 2 is arranged at the end of a winch bracket 1, and then a first transmission gear 3 is arranged on the side of the rope turntable 2, and a second transmission gear 4 is arranged on the side of the inner wall of the winch bracket 1, and the first transmission gear 3 and the second transmission gear 4 are meshed with each other, so that a rotating block 5 is arranged at the end of the second transmission gear 4, and then the rotating block 5 passes through the winch bracket 1 and extends to the outside of the winch bracket 1, and a rotating crank 6 is arranged on the side of the rotating block 5, and a supporting shaft 12 is arranged at the end of the second transmission gear 4, and the other end of the supporting shaft 12 is fixed to the inner wall of the winch bracket 1 The capstan bracket 1 is connected, and then a fixed limiting roller 14 is sleeved on the outside of the supporting shaft 12, and a fixed shaft 7 is provided on the inner wall of the capstan bracket 1, and a movable limiting roller 15 is sleeved at the middle position of the fixed shaft 7, so that the diameter of the second transmission gear 4 is smaller than the diameter of the first transmission gear 3, and then limiting baffles 13 are provided on both sides of the fixed limiting roller 14, and the limiting baffles 13 limit the fixed limiting roller 14, and at the same time, the limiting baffles 13 are provided with multiple groups, and one group of limiting baffles 13 is located on the side of the movable limiting roller 15, and one group of limiting baffles 13 is located on the outside of the fixed shaft 7 and away from the other side of the movable limiting roller 15.

[0030] For a detailed description of the mounting block 9 in this embodiment, please refer to Figure 2 and Figure 3 A return spring 16 is sleeved on the outside of the fixed shaft rod 7, and then one end of the return spring 16 is fixedly connected to the limit baffle 13, and the other end of the return spring 16 is connected to a rotating disk 17, and the rotating disk 17 is sleeved on the outside of the fixed shaft rod 7, so that the end of the fixed shaft rod 7 is sleeved with a rotating sleeve 8, and the end of the rotating sleeve 8 is provided with a mounting block 9, and then a limiting insert 10 is provided at the end of the mounting block 9, and the limiting insert 10 is located above the second transmission gear 4, and the limiting insert 10 can be meshed with the second transmission gear 4, the teeth on the second transmission gear 4 are inclined, and the end of the limiting insert 10 is inclined, so that the second transmission gear 4 can rotate unidirectionally, and then a protrusion is provided at the tail of the rotating sleeve 8, and a protrusion is also provided on the side of the capstan bracket 1, and a support spring 11 is provided between the two groups of protrusions.

[0031] Working principle: When the device is in use, the end of the rope is pulled out from the rope turntable 2, and then the movable limiting roller 15 is slid so that the movable limiting roller 15 and the fixed limiting roller 14 are interlaced with each other, and then the rope is placed inside the fixed limiting roller 14, and then passed from under the fixed shaft rod 7. At this time, the movable limiting roller 15 is released, so that the return spring 16 drives the movable limiting roller 15 to recover through the rotating disk 17, so that the movable limiting roller 15 and the fixed limiting roller 14 correspond to each other, thereby limiting the upper part of the rope, which can complete the limitation of the rope and prevent the rope from shaking.

[0032] Then, the end of the rope is connected to the cargo, and the person rotates the rotating crank 6, so that the rotating crank 6 drives the second transmission gear 4 to rotate through the rotating block 5, and the second transmission gear 4 drives the rope turntable 2 to rotate through the first transmission gear 3, and the rope turntable 2 reels the rope, thereby pulling the cargo to move. At the same time, the second transmission gear 4 squeezes the limiting insert 10 when rotating, so that the limiting insert 10 drives the mounting block 9 to rotate along the inclined surface, so that the limiting insert 10 is disengaged from the teeth of the second transmission gear 4 so that the second transmission gear 4 can be normally reeled, and then the supporting spring 11 drives the rotating sleeve 8 to recover, so that the rotating sleeve 8 drives the limiting insert 10 to be re-embedded into the teeth of the second transmission gear 4 through the mounting block 9, thereby limiting the second transmission gear 4 to prevent the cargo from falling off after the person lets go.

[0033] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.

[0034] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

[0035] In the present utility model, unless otherwise stated, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A winch brake structure, comprising a winch bracket (1), characterized in that: A rope rotary disc (2) is arranged at the end of the winch bracket (1), a first transmission gear (3) is arranged on the side of the rope rotary disc (2), a second transmission gear (4) is arranged on the side of the inner wall of the winch bracket (1), the first transmission gear (3) and the second transmission gear (4) are meshed with each other, a rotating block (5) is arranged at the end of the second transmission gear (4), the rotating block (5) passes through the winch bracket (1) and extends to the outside of the winch bracket (1), a rotating crank (6) is arranged on the side of the rotating block (5), a supporting shaft (12) is arranged at the end of the second transmission gear (4), the other end of the supporting shaft (12) is fixedly connected to the inner wall of the winch bracket (1), a fixed limiting roller (14) is sleeved on the outside of the supporting shaft (12), a fixed shaft (7) is arranged on the inner wall of the winch bracket (1), and a movable limiting roller (15) is sleeved at the middle position of the fixed shaft (7).

2. A winch brake structure according to claim 1, characterized in that: The diameter of the second transmission gear (4) is smaller than the diameter of the first transmission gear (3).

3. A winch brake structure according to claim 1, characterized in that: Limit baffles (13) are arranged on both sides of the fixed limiting roller (14), and the limit baffles (13) limit the fixed limiting roller (14). There are multiple groups of limit baffles (13), and one group of limit baffles (13) is located on the side of the movable limiting roller (15), and the other group of limit baffles (13) is located outside the fixed shaft (7) and away from the other side of the movable limiting roller (15).

4. A winch brake structure according to claim 1, characterized in that: A return spring (16) is sleeved on the outside of the fixed shaft (7), one end of the return spring (16) is fixedly connected to the limit baffle (13), and the other end of the return spring (16) is connected to a rotating disk (17), and the rotating disk (17) is sleeved on the outside of the fixed shaft (7).

5. A winch brake structure according to claim 1, characterized in that: The end of the fixed shaft (7) is sleeved with a rotating sleeve (8), the end of the rotating sleeve (8) is provided with a mounting block (9), the end of the mounting block (9) is provided with a limiting insert (10), the limiting insert (10) is located above the second transmission gear (4), and the limiting insert (10) can mesh with the second transmission gear (4).

6. A winch brake structure according to claim 5, characterized in that: The teeth on the second transmission gear (4) are arranged obliquely, and the end of the limiting insert (10) is arranged obliquely, so that the second transmission gear (4) can rotate in one direction.

7. A winch brake structure according to claim 6, characterized in that: The tail of the rotating sleeve (8) is provided with a protrusion, and the side of the winch bracket (1) is also provided with a protrusion, and a supporting spring (11) is provided between the two groups of protrusions.

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