Brake device and forklift

Abstract

The utility model relates to the technical field of braking, and discloses a braking device and a forklift. The brake assembly comprises a brake part, one end of the brake assembly is rotationally connected to the mounting base through a rotating shaft, the brake assembly is suitable for being rotationally switched between an initial position and a brake position, the brake part is separated from the hub inner ring in the state of the initial position, and the brake part and the hub inner ring are tightly pressed in the state of the brake position; the telescopic adjusting assembly is installed on the installation base, the telescopic end of the telescopic adjusting assembly abuts against the brake assembly, and the telescopic adjusting assembly is suitable for adjusting the initial position of the brake assembly. According to the brake device and the forklift, the distance between the brake piece and the inner ring of the hub can be adjusted, and the brake effect is improved.

Description

Technical Field

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

[0002] A forklift is an industrial handling vehicle, mainly used for loading and unloading and carrying heavy objects. The brake system is an important component to ensure the safety and stability of the forklift during driving. Long-term use of the brakes will cause serious wear of the brake parts, which will increase the distance between the brake parts and the inner ring of the wheel hub. Under the same braking stroke, the pressure between the brake parts and the inner ring of the wheel hub will be reduced, the friction will be reduced, and the braking effect will be affected.

[0003] Therefore, there is an urgent need for a brake that can adjust the distance between the brake member and the inner ring of the wheel hub. Utility Model Content

[0004] In view of this, the utility model provides a brake device and a forklift, which can adjust the distance between the brake component and the inner ring of the wheel hub to improve the braking effect.

[0005] In a first aspect, the utility model provides a brake device for cooperating with an inner ring of a wheel hub, comprising:

[0006] Mounting seat;

[0007] The brake assembly includes a brake part, one end of which is rotatably connected to a mounting seat via a rotating shaft, and the brake assembly is adapted to be rotatably switched between an initial position and a braking position. In the initial position, the brake part is separated from the inner ring of the wheel hub, and in the braking position, the brake part is pressed against the inner ring of the wheel hub;

[0008] The telescopic adjustment component is installed on the mounting seat, the telescopic end of the telescopic adjustment component abuts against the brake component, and the telescopic adjustment component is suitable for adjusting the initial position of the brake component.

[0009] Beneficial effects: The brake assembly can be switched between the initial position and the braking position by rotating around the rotating shaft. When the brake assembly is in the initial position, the brake part is away from the inner ring of the wheel hub, and the wheel operates normally. When the brake part is in the braking position, the brake part squeezes the inner ring of the wheel hub to brake. The brake part wears and becomes thinner with the increase of use time. Therefore, when it is not working, the brake part is in the initial position, the distance between the brake part and the inner ring of the wheel hub becomes larger, the braking stroke becomes longer, and the braking effect is reduced. The telescopic end of the telescopic adjustment assembly can adjust the initial position of the brake part, reduce the distance between the brake part and the inner ring of the wheel hub in the non-working state, make up for the thickness of the brake part due to friction loss, reduce the braking stroke, and improve the braking effect.

[0010] In an optional embodiment, the brake assembly includes a first clamping device and a second clamping device, and the first clamping device and the second clamping device and the parts corresponding to the inner ring of the wheel hub constitute a brake part;

[0011] The first ends of the first clamping device and the second clamping device are respectively rotatably connected to the mounting seat through a rotating shaft, and the second ends of the first clamping device and the second clamping device are connected through an elastic contraction member to form a mounting gap therebetween. Under the elastic force of the elastic contraction member, the first clamping device and the second clamping device have a tendency to rotate from the braking position to the initial position.

[0012] The telescopic adjustment component is located in the installation gap and is provided with two telescopic ends, and the two telescopic ends are respectively abutted against the second ends of the first clamping device and the second clamping device.

[0013] Beneficial effects: The first clamping device and the second clamping device can both rotate around the rotating shaft to switch between the initial position and the braking position. The elastic contraction part can keep the first clamping device and the second clamping device in the initial position when not working, preventing their braking parts from contacting and rubbing with the inner ring of the wheel hub; the two telescopic ends of the telescopic adjustment assembly abut against the second ends of the first clamping device and the second clamping device, and can adjust the initial position of the first clamping device and the second clamping device to make it close to the inner ring of the wheel set, thereby compensating for the thickness of the brake part due to friction loss, reducing the braking stroke, and improving the braking effect.

[0014] In an optional embodiment, the telescopic adjustment assembly includes a groove body with two through ends and a telescopic member, the groove body is located in the installation gap, the telescopic member is provided with two telescopic ends, the telescopic member is installed in the groove body and its two telescopic ends are respectively abutted against the second ends of the first clamping device and the second clamping device.

[0015] Beneficial effects: The telescopic member is easy to install and the telescopic end of the telescopic member is guided.

[0016] In an optional embodiment, the telescopic member includes two sliders, a screw rod and a transmission member. The two sliders are slidably connected in the groove body. The opposite surfaces of the two sliders are provided with threaded holes with opposite threads. The two ends of the screw rod are correspondingly screwed to the two threaded holes, and the transmission member drives the screw rod to rotate.

[0017] Beneficial effect: The transmission part drives the screw to rotate, and the two ends of the screw are screwed to the threaded holes on the two sliders. Since the thread directions of the two threaded holes are opposite, when the screw rotates, the two sliders can be driven to move away or closer at the same time, and the first clamping device and the second clamping device can be driven to rotate at the same angle at the same time, ensuring that the braking force of the first clamping device and the second clamping device is the same.

[0018] In an optional embodiment, the transmission member includes a worm wheel and a worm, the worm wheel is mounted on the screw, a through hole is opened on the side wall of the groove body, and the worm passes through the through hole to be transmission-connected to the worm wheel.

[0019] Beneficial effect: The screw is driven to rotate by the worm gear and the worm, which has higher precision and saves labor for manual adjustment.

[0020] In an optional embodiment, the first clamping device and the second clamping device both include a brake shoe and a brake pad, the brake shoe and the brake pad are fixedly connected, and the brake pad corresponds to the inner ring of the wheel hub to form a brake part;

[0021] The two brake shoes are symmetrically arranged and the first ends thereof are rotatably connected to the mounting seat through a rotating shaft. The second ends of the two brake shoes are connected to the two ends of the elastic contraction member, and the second ends of the two brake shoes are respectively abutted against the two sliders.

[0022] In an optional embodiment, on the opposite surfaces of the brake shoe and the brake pad, one is provided with a positioning groove, and the other is provided with a positioning protrusion, and the positioning groove is matched with the positioning protrusion;

[0023] The brake shoe and the brake pad are provided with corresponding connecting holes, and the brake shoe and the brake pad are connected by a connecting piece inserted in the connecting hole.

[0024] Beneficial effects: The positioning protrusion is inserted into the positioning groove to position the brake shoe and the brake pad, and they are connected by a connecting piece. The structure is simple and the installation is convenient. In addition, during the friction between the brake pad and the inner ring of the wheel hub, the firmness between the brake pad and the brake shoe can be improved.

[0025] In an optional embodiment, the brake shoe and the brake pad are provided with a corresponding plurality of heat dissipation holes.

[0026] Beneficial effect: Improve heat dissipation, thereby improving braking effect.

[0027] In an optional embodiment, a brake driving member is further included, and a driving end of the brake driving member is used to push the second ends of the two brake shoes away from each other so that the two brake pads squeeze the inner ring of the wheel hub.

[0028] In a second aspect, the utility model further provides a forklift, comprising: a wheel hub and a brake device, wherein a brake portion of the brake device corresponds to an inner ring of the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a schematic structural diagram of a brake device according to an embodiment of the utility model;

[0031] Figure 2 A partial cross-sectional view of a brake device according to an embodiment of the utility model;

[0032] Figure 3 for Figure 2 A is a partial enlarged schematic diagram;

[0033] Figure 4 This is an exploded view of a first clamping device in a brake device according to an embodiment of the utility model.

[0034] Description of reference numerals:

[0035] 1. Mounting seat; 2. Brake assembly; 21. First clamping device; 211. Brake shoe; 2111. Positioning groove; 2112. Connecting hole; 2113. Heat dissipation hole; 212. Brake pad; 2121. Positioning protrusion; 22. Second clamping device; 3. Telescopic adjustment assembly; 31. Groove body; 32. Telescopic member; 321. Slider; 322. Screw; 323. Transmission member; 3231. Worm gear; 3232. Worm; 4. Installation gap; 5. Rotating shaft; 6. Brake drive member; 7. Bolt; 8. Articulated seat. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] Combine the following Figures 1 to 4 , describing an embodiment of the utility model.

[0038] According to an embodiment of the utility model, on the one hand, a brake device is provided, which is used to cooperate with the inner ring of a wheel hub, comprising:

[0039] Mounting seat 1;

[0040] The brake assembly 2 includes a brake part, one end of which is rotatably connected to the mounting seat 1 via a rotating shaft 5, and the brake assembly 2 is suitable for rotating and switching between an initial position and a braking position. In the initial position, the brake part is separated from the inner ring of the wheel hub, and in the braking position, the brake part is pressed against the inner ring of the wheel hub;

[0041] The telescopic adjustment component 3 is mounted on the mounting seat 1 , and the telescopic end of the telescopic adjustment component 3 abuts against the brake component 2 . The telescopic adjustment component 3 is suitable for adjusting the initial position of the brake component 2 .

[0042] The brake assembly 2 can be switched between the initial position and the braking position by rotating around the rotating shaft 5. When the brake assembly 2 is in the initial position, the brake part is away from the inner ring of the wheel hub, and the wheel operates normally. When the brake part is in the braking position, the brake part squeezes the inner ring of the wheel hub to brake. The brake part wears and becomes thinner with the increase of usage time. Therefore, when it is not working, the brake part is in the initial position, the distance between the brake part and the inner ring of the wheel hub becomes larger, the braking stroke becomes longer, and the braking effect is reduced. The telescopic end of the telescopic adjustment assembly 3 can adjust the initial position of the brake part, reduce the distance between the brake part and the inner ring of the wheel hub in the non-working state, make up for the thickness of the brake part due to friction loss, reduce the braking stroke, and improve the braking effect.

[0043] In one embodiment, the brake assembly 2 includes a first clamping device 21 and a second clamping device 22, and the first clamping device 21 and the second clamping device 22 constitute a brake part at the position corresponding to the inner ring of the wheel hub; the first ends of the first clamping device 21 and the second clamping device 22 are respectively rotatably connected to the mounting seat 1 through the rotating shaft 5, and the second ends of the first clamping device 21 and the second clamping device 22 are connected through an elastic shrinkage member and an installation gap 4 is formed therebetween. Under the elastic force of the elastic shrinkage member, the first clamping device 21 and the second clamping device 22 have a tendency to rotate from the braking position to the initial position; the telescopic adjustment assembly 3 is located in the installation gap 4 and is provided with two telescopic ends, which are respectively abutted against the second ends of the first clamping device 21 and the second clamping device 22.

[0044] The first clamping device 21 and the second clamping device 22 can both rotate around the rotating shaft 5 to switch between the initial position and the braking position. The elastic contraction part can keep the first clamping device 21 and the second clamping device 22 in the initial position when not working, preventing their braking parts from contacting and rubbing with the inner ring of the wheel hub; the two telescopic ends of the telescopic adjustment component 3 are abutted against the second ends of the first clamping device 21 and the second clamping device 22, and the initial positions of the first clamping device 21 and the second clamping device 22 can be adjusted to make them close to the inner ring of the wheel set, thereby compensating for the thickness of the braking part due to friction loss, reducing the braking stroke, and improving the braking effect.

[0045] In one embodiment, the telescopic adjustment assembly 3 includes a groove body 31 with two through-going ends and a telescopic member 32, the groove body 31 is located in the installation gap 4, the telescopic member 32 is provided with two telescopic ends, the telescopic member 32 is installed in the groove body 31 and its two telescopic ends are respectively abutted against the second ends of the first clamping device 21 and the second clamping device 22.

[0046] It is convenient to install the telescopic member 32 and guide the telescopic end of the telescopic member 32.

[0047] In one embodiment, the telescopic member 32 includes two sliders 321, a screw rod 322 and a transmission member 323. The two sliders 321 are slidably connected in the groove body 31. The opposite surfaces of the two sliders 321 are provided with threaded holes with opposite threads. The two ends of the screw rod 322 are correspondingly screwed with the two threaded holes, and the transmission member 323 drives the screw rod 322 to rotate.

[0048] The transmission member 323 drives the screw rod 322 to rotate, and the two ends of the screw rod 322 are screwed to the threaded holes on the two sliders 321. Since the thread directions of the two threaded holes are opposite, when the screw rod 322 rotates, it can drive the two sliders 321 to move away or closer at the same time, and can simultaneously drive the first clamping device 21 and the second clamping device 22 to rotate at the same angle, thereby ensuring that the braking force of the first clamping device 21 and the second clamping device 22 is the same.

[0049] In one embodiment, the transmission member 323 includes a worm wheel 3231 and a worm 3232 . The worm wheel 3231 is mounted on the screw 322 . A through hole is formed on the side wall of the slot body 31 . The worm 3232 passes through the through hole and is transmission-connected to the worm wheel 3231 .

[0050] The screw rod 322 is driven to rotate by the worm wheel 3231 and the worm 3232 , so the precision is higher and the manual adjustment is labor-saving.

[0051] In one embodiment, the first clamping device 21 and the second clamping device 22 both include a brake shoe 211 and a brake pad 212, the brake shoe 211 and the brake pad 212 are fixedly connected, and the brake pad 212 corresponds to the inner ring of the wheel hub to form a brake part;

[0052] The two brake shoes 211 are symmetrically arranged and the first ends thereof are rotatably connected to the mounting seat 1 via the rotating shaft 5 . The second ends of the two brake shoes 211 are connected to the two ends of the elastic contraction member and the second ends of the two brake shoes 211 are respectively in contact with the two sliders 321 .

[0053] In some embodiments, an articulated seat 8 is further included. The articulated seat 8 is fixed on the mounting seat 1 . The articulated seat 8 has two rotating shafts 5 . The first ends of the two brake shoes 211 are correspondingly rotatably connected to the two rotating shafts 5 .

[0054] In one embodiment, on the opposite surfaces of the brake shoe 211 and the brake pad 212, one of them is provided with a positioning groove 2111, and the other is provided with a positioning protrusion 2121, and the positioning groove 2111 is adapted to the positioning protrusion 2121;

[0055] The brake shoe 211 and the brake pad 212 are provided with corresponding connecting holes 2112 , and the brake shoe 211 and the brake pad 212 are connected via a connecting piece inserted into the connecting hole 2112 .

[0056] The positioning protrusion 2121 is inserted into the positioning groove 2111 to position the brake shoe 211 and the brake pad 212, and is connected by a connecting piece. The structure is simple and the installation is convenient. In addition, during the friction between the brake pad 212 and the inner ring of the wheel hub, the firmness between the brake pad 212 and the brake shoe 211 can be improved.

[0057] In some embodiments, a positioning groove 2111 is provided on the brake shoe 211 , and a positioning protrusion 2121 is provided on the brake pad 212 .

[0058] In some embodiments, a positioning protrusion 2121 is provided on the brake shoe 211 , and a positioning groove 2111 is provided on the brake pad 212 .

[0059] In a specific embodiment, the positioning groove 2111 and the positioning protrusion 2121 are both provided in plurality.

[0060] In some embodiments, a plurality of positioning grooves 2111 are provided on the brake shoe 211, a plurality of positioning protrusions 2121 are provided on the brake pad 212, a threaded connection hole 2112 is provided at the bottom of the positioning groove 2111, and the bolt 7 passes through the connection hole 2112 provided on the brake pad 212 and is screwed to the threaded connection hole 2112, so that the brake pad 212 is fixed on the brake shoe 211.

[0061] In a specific embodiment, the connection hole 2112 opened on the brake pad 212 is a countersunk hole, so that the bolt head is located below the surface of the brake pad 212 and does not affect the braking.

[0062] In one embodiment, the brake shoe 211 and the brake pad 212 are provided with a plurality of corresponding heat dissipation holes 2113 to improve the heat dissipation effect and thus improve the braking effect.

[0063] In one embodiment, a brake driver 6 is further included, and a driving end of the brake driver 6 is used to push the second ends of the two brake shoes 211 away from each other so that the two brake pads 212 are pressed against the inner ring of the wheel hub.

[0064] In a specific embodiment, the brake drive member 6 is a one-way cylinder, which is located in the installation gap 4 and whose cylinder body is fixed to the second end of one brake shoe 211, and whose telescopic rod abuts against the second end of another brake shoe 211, and at the same time, the groove body 31 is fixed on the mounting seat 1.

[0065] In a specific embodiment, the brake drive 6 is a bidirectional cylinder, which is located in the installation gap 4 and its cylinder body is fixed on the mounting base 1, its two telescopic rods abut the second ends of the two brake shoes 211, and the groove body 31 is fixed on the cylinder body of the bidirectional cylinder or the mounting base 1.

[0066] According to an embodiment of the present utility model, on the other hand, a forklift is provided, comprising: a wheel hub and a brake device, wherein a brake portion of the brake device corresponds to an inner ring of the wheel hub.

[0067] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A brake device, characterized in that: Used to match with the inner ring of the wheel hub, including: Mounting seat (1); A brake assembly (2), comprising a brake part, one end of the brake assembly (2) being rotatably connected to the mounting seat (1) via a rotating shaft (5), and the brake assembly (2) being adapted to be rotatably switched between an initial position and a brake position, wherein in the initial position, the brake part is disengaged from the inner ring of the wheel hub, and in the brake position, the brake part is pressed against the inner ring of the wheel hub; A telescopic adjustment component (3) is mounted on the mounting seat (1); the telescopic end of the telescopic adjustment component (3) abuts against the brake component (2); and the telescopic adjustment component (3) is suitable for adjusting the initial position of the brake component (2).

2. A brake device according to claim 1, characterized in that: The brake assembly (2) comprises a first clamping device (21) and a second clamping device (22), and the first clamping device (21) and the second clamping device (22) corresponding to the inner ring of the wheel hub constitute the brake part; The first ends of the first clamping device (21) and the second clamping device (22) are respectively rotatably connected to the mounting seat (1) via the rotating shaft (5); the second ends of the first clamping device (21) and the second clamping device (22) are connected via an elastic contraction member and a mounting gap (4) is formed therebetween; under the elastic force of the elastic contraction member, the first clamping device (21) and the second clamping device (22) have a tendency to rotate in the direction from the braking position to the initial position; The telescopic adjustment component (3) is located in the installation gap (4) and is provided with two telescopic ends, and the two telescopic ends are respectively abutted against the second ends of the first clamping device (21) and the second clamping device (22).

3. A brake device according to claim 2, characterized in that: The telescopic adjustment assembly (3) comprises a slot body (31) with two through-going ends and a telescopic member (32); the slot body (31) is located in the installation gap (4); the telescopic member (32) is provided with two telescopic ends; the telescopic member (32) is installed in the slot body (31) and its two telescopic ends are respectively in contact with the second ends of the first clamping device (21) and the second clamping device (22).

4. A brake device according to claim 3, characterized in that: The telescopic member (32) comprises two sliders (321), a screw rod (322) and a transmission member (323); the two sliders (321) are slidably connected in the groove body (31); threaded holes with opposite threads are arranged on opposite surfaces of the two sliders (321); two ends of the screw rod (322) are correspondingly screwed to the two threaded holes; and the transmission member (323) drives the screw rod (322) to rotate.

5. A brake device according to claim 4, characterized in that: The transmission member (323) comprises a worm wheel (3231) and a worm (3232); the worm wheel (3231) is mounted on the screw (322); a through hole is provided on the side wall of the groove body (31); the worm (3232) passes through the through hole and is transmission-connected to the worm wheel (3231).

6. A brake device according to claim 4, characterized in that: The first clamping device (21) and the second clamping device (22) both comprise a brake shoe (211) and a brake pad (212), the brake shoe (211) and the brake pad (212) are fixedly connected, and the brake pad (212) corresponds to the inner ring of the wheel hub to form the brake part; The two brake shoes (211) are symmetrically arranged and the first ends thereof are rotatably connected to the mounting seat (1) via the rotating shaft (5); the second ends of the two brake shoes (211) are connected to the two ends of the elastic contraction member; and the second ends of the two brake shoes (211) are respectively in contact with the two sliders (321).

7. A brake device according to claim 6, characterized in that: On the opposite surfaces of the brake shoe (211) and the brake pad (212), one is provided with a positioning groove (2111), and the other is provided with a positioning protrusion (2121), and the positioning groove (2111) is matched with the positioning protrusion (2121); The brake shoe (211) and the brake pad (212) are provided with corresponding connecting holes (2112), and the brake shoe (211) and the brake pad (212) are connected via a connecting piece inserted into the connecting hole (2112).

8. A brake device according to claim 7, characterized in that: The brake shoe (211) and the brake pad (212) are provided with a plurality of corresponding heat dissipation holes (2113).

9. A brake device according to claim 6, characterized in that: It also includes a brake driving member (6), wherein the driving end of the brake driving member (6) is used to push the second ends of the two brake shoes (211) away from each other so that the two brake pads (212) squeeze the inner ring of the wheel hub.

10. A forklift, characterized in that: It comprises a wheel hub and the brake device according to any one of claims 1 to 9, wherein the brake portion of the brake device corresponds to the inner ring of the wheel hub.

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