Forklift bimetal brake hub

Abstract

The utility model provides a bimetal brake hub of a forklift. Belongs to the brake drum field. According to the technical key points, the drum comprises a drum body mechanism, the drum body mechanism comprises an outer metal shell, an inner metal friction ring matched with the outer metal shell is arranged in the outer metal shell in a sleeved mode, an annular groove is formed in the top of the outer metal shell, and a plurality of inserting grooves are formed in the inner wall of the outer metal shell in an annular array mode; the inner metal friction ring comprises an annular groove, a plurality of inserting grooves are formed in the outer wall of the inner metal friction ring, each inserting groove communicates with the annular groove, a plurality of inserting blocks are fixedly connected to the outer wall of the inner metal friction ring in an annular array mode, each inserting block is inserted into the corresponding inserting groove, and the fixing mechanism comprises a connecting ring fixedly connected to the top of the inner metal friction ring. The connecting ring is matched with the annular groove and is inserted into the annular groove; the utility model aims to provide a bimetal brake hub of a forklift. The maintenance cost of the whole brake drum is reduced.

Description

Technical Field

[0001] The utility model relates to the field of brake drums, in particular to a bimetallic brake hub for a forklift. Background Art

[0002] The brake drum is the friction pair of the drum brake. In addition to the strength and rigidity required as a component, it should also have the highest and most stable friction coefficient, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity, etc. The bimetallic brake drum refers to two metal materials bonded together through a certain process method to complement each other, thereby improving the performance of the brake drum. The most notable feature of this process is that it uses high-strength materials and high-toughness materials, which are compounded through a special process. It has high wear resistance and high crack resistance, which increases the life and safety of the brake drum. The forklift bimetallic brake drum, as the name suggests, is a bimetallic brake drum used on forklifts.

[0003] The current bimetallic brake hub mainly uses two metal materials bonded together through a certain process method to complement each other, thereby improving the performance of the brake drum. The two metals form an integrated structure, which means that when the inner wall of the brake drum is severely worn after long-term use, it can only be replaced as a whole, resulting in a high maintenance cost for the entire bimetallic brake drum. Utility Model Content

[0004] The utility model aims to provide a bimetallic brake hub for a forklift to solve the problems raised in the above background technology.

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

[0006] A forklift bimetal brake hub, comprising

[0007] A drum body mechanism, the drum body mechanism comprises an outer metal shell, a matching inner metal friction ring is sleeved inside the outer metal shell, an annular groove is provided on the top of the outer metal shell, a plurality of slots are provided on the inner wall of the outer metal shell in an annular array, each group of the slots is connected to the annular groove, a plurality of plug-in blocks are fixedly connected to the outer wall of the inner metal friction ring in an annular array, and each group of the plug-in blocks is respectively plugged into the inside of each group of the slots;

[0008] A fixing mechanism, the fixing mechanism includes a connecting ring fixedly connected to the top of the inner metal friction ring, the connecting ring is adapted to the annular groove and inserted into the inside of the annular groove, the top of the connecting ring is provided with a plurality of connecting grooves in an annular array, and the inside of each group of the connecting grooves is provided with a connecting nut threadedly connected to the outer metal shell.

[0009] As a further solution of the utility model: a second cavity is provided between the inner wall of the outer metal shell and the outer wall of the inner metal friction ring, a first cavity is provided between the side of each group of the plug blocks away from the inner metal friction ring and the inner wall of the slot, the interiors of the second cavity and the first cavity are both filled with heat transfer oil, and each group of the connecting grooves is connected to each group of the first cavity.

[0010] As a further solution of the utility model: the inner wall of each group of the slots is symmetrically provided with connecting grooves, and the connecting grooves are connected with the first cavity and the second cavity.

[0011] As a further solution of the utility model: a second sealing groove is provided at the bottom of the inner metal friction ring and the inner bottom wall of the outer metal shell, and a matching second silicone rubber sealing ring is provided inside the two groups of the second sealing grooves, and the second silicone rubber sealing ring is in contact with the inner metal friction ring and the outer metal shell.

[0012] As a further solution of the utility model: a first sealing groove is provided at the bottom of the connecting ring and the inner bottom wall of the annular groove, and matching first silicone rubber sealing rings are provided inside the two groups of the first sealing grooves, and the first silicone rubber sealing rings are in contact with the outer metal shell and the connecting ring.

[0013] As a further solution of the utility model: the inner bottom wall of each group of the connecting grooves is provided with a silicone rubber sealing gasket fixedly connected to the connecting ring, and each group of the silicone rubber sealing gaskets is respectively abutted against each group of the connecting nuts.

[0014] As a further solution of the utility model: a plurality of reinforcing ribs are fixedly connected to the outer wall of the outer metal shell in an annular array.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] After the utility model adopts the above structure, through the mutual cooperation of the inner metal friction ring, the outer metal shell, the slot, the plug block and the connecting nut, the friction lining of the drum brake is contacted to generate friction to achieve braking during the application process. When the inner metal friction ring is seriously worn, the groups of connecting nuts can be unscrewed, and the inner metal friction ring can be removed from the inside of the outer metal shell, and then a new inner metal friction ring can be replaced, so that when the inner wall of the brake drum is seriously worn, there is no need to replace the entire brake drum, thereby reducing the maintenance cost of the entire brake drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0018] Figure 1The figure is a schematic diagram of the overall structure of a bimetallic brake hub for a forklift.

[0019] Figure 2 A bimetallic brake hub for forklifts Figure 1 Schematic diagram of the A part structure.

[0020] Figure 3 The figure is a cross-sectional view of the structure of a bimetallic brake hub for a forklift.

[0021] Figure 4 A bimetallic brake hub for forklifts Figure 2 Schematic diagram of the structure of part B.

[0022] Figure 5 A bimetallic brake hub for forklifts Figure 2 Schematic diagram of the C part structure.

[0023] In the figure: 1. drum body mechanism; 101. outer metal shell; 102. inner metal friction ring; 103. annular groove; 104. slot; 105. plug-in block; 106. first cavity; 107. second cavity; 108. heat transfer oil; 109. reinforcing rib plate; 110. connecting groove; 2. fixing mechanism; 201. connecting ring; 202. connecting groove; 203. connecting nut; 204. silicone rubber sealing gasket; 205. first sealing groove; 206. first silicone rubber sealing ring; 207. second sealing groove; 208. second silicone rubber sealing ring. DETAILED DESCRIPTION

[0024] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0025] See also Figure 1-5 A forklift bimetallic brake hub includes a drum body mechanism 1, which includes an outer metal shell 101. The outer metal shell 101 is sleeved with a matching inner metal friction ring 102. The inner wall of the outer metal shell 101 is provided with a plurality of slots 104 in an annular array. The outer wall of the inner metal friction ring 102 is fixedly connected with a plurality of plug-in blocks 105 in an annular array. Each group of plug-in blocks 105 is respectively plugged into the inside of each group of slots 104. The mutual engagement of the slots 104 and the plug-in blocks 105 can realize the synchronous rotation of the inner metal friction ring 102 and the outer metal shell 101, so that when the inner metal friction ring 102 contacts and generates friction with the friction lining of the drum brake, the inner metal friction ring 102 and the outer metal shell 101 can be braked.

[0026] A second cavity 107 is provided between the inner wall of the outer metal shell 101 and the outer wall of the inner metal friction ring 102. A first cavity 106 is provided between the side of each group of plug blocks 105 away from the inner metal friction ring 102 and the inner wall of the slot 104. The interiors of the second cavity 107 and the first cavity 106 are filled with heat transfer oil 108. Each group of connecting grooves 202 is connected to each group of first cavities 106. The first cavity 106 and the second cavity 107 are provided to accommodate the heat transfer oil 108, so that the heat generated by the friction between the inner metal friction ring 102 and the friction lining of the drum brake can be conducted to the outer metal shell 101 through the heat transfer oil 108, and finally dissipated through the outer metal shell 101, thereby improving the heat conduction and heat dissipation effect. The inner wall of each group of slots 104 is symmetrically provided with connecting grooves 110, and the setting of the connecting grooves 110 can facilitate the flow of the heat transfer oil 108 between the first cavity 106 and the second cavity 107. The connecting groove 110 is connected with the first cavity 106 and the second cavity 107. A plurality of reinforcing ribs 109 are fixedly connected in a circular array on the outer wall of the outer metal shell 101. The arrangement of the reinforcing ribs 109 can improve the strength of the outer metal shell 101 while increasing the surface area of ​​the entire brake drum, thereby improving the heat dissipation effect of the entire brake drum.

[0027] The bottom of the inner metal friction ring 102 and the inner bottom wall of the outer metal shell 101 are both provided with a second sealing groove 207, and the interior of the two sets of second sealing grooves 207 are provided with matching second silicone rubber sealing rings 208, and the second silicone rubber sealing ring 208 abuts against both the inner metal friction ring 102 and the outer metal shell 101. The setting of the second sealing groove 207 can accommodate the second silicone rubber sealing ring 208, so that the second silicone rubber sealing ring 208 can seal the gap between the inner metal friction ring 102 and the outer metal shell 101 to reduce the probability of leakage of the heat transfer oil 108. The bottom of the connecting ring 201 and the inner bottom wall of the annular groove 103 are both provided with first sealing grooves 205, and the interiors of the two groups of first sealing grooves 205 are provided with matching first silicone rubber sealing rings 206, which are in contact with both the outer metal shell 101 and the connecting ring 201. The provision of the first silicone rubber sealing ring 206 can seal the gap between the connecting ring 201 and the outer metal shell 101, thereby further reducing the probability of leakage of the heat transfer oil 108. The inner bottom wall of each group of connecting grooves 202 is provided with a silicone rubber sealing gasket 204 fixedly connected to the connecting ring 201, and each group of silicone rubber sealing gaskets 204 are respectively in contact with each group of connecting nuts 203, and the provision of the silicone rubber sealing gasket 204 can seal the gap between the connecting ring 201 and the connecting nuts 203, thereby further reducing the probability of leakage of the heat transfer oil 108.

[0028] The top of the outer metal shell 101 is provided with an annular groove 103, and each group of slots 104 is connected to the annular groove 103. The fixing mechanism 2 includes a connecting ring 201 fixedly connected to the top of the inner metal friction ring 102. The connecting ring 201 is adapted to the annular groove 103. The setting of the annular groove 103 can accommodate and limit the connecting ring 201. It is inserted into the inside of the annular groove 103. The top of the connecting ring 201 is provided with a plurality of connecting grooves 202 in an annular array. The inside of each group of connecting grooves 202 is provided with a connecting nut 203 threadedly connected to the outer metal shell 101.

[0029] During use, the inner metal friction ring 102 contacts the friction lining to achieve braking. When the inner metal friction ring 102 is severely worn and needs to be replaced, the connecting nuts 203 of each group can be unscrewed, and then the inner metal friction ring 102 together with the connecting ring 201 and the plug block 105 can be disassembled, and then a new inner metal friction ring 102 can be taken out, and then the plug blocks 105 of each group on the side of the new inner metal friction ring 102 can be aligned and inserted into the inside of each group of slots 104 until the connecting ring 201 is inserted into the inside of the annular groove 103, and then the inner metal friction ring 102 can be replaced. The heat transfer oil 108 is introduced into the interior of the friction ring 102 so that the heat transfer oil 108 can flow into the interior of each group of the second cavity 107 and the first cavity 106, and then the connecting nut 203 is inserted into the interior of each group of the connecting groove 202, and each group of the connecting nut 203 is screwed to the outer metal shell 101 until the nut of each group of the connecting nut 203 is screwed to the corresponding silicone rubber sealing gasket 204, thereby achieving the sealing of the connecting groove 202 to reduce the leakage of the heat transfer oil 108, and then completing the replacement of the inner metal friction ring 102.

[0030] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A forklift bimetallic brake hub, characterized in that: include A drum body mechanism (1), the drum body mechanism (1) comprising an outer metal shell (101), a matching inner metal friction ring (102) being sleeved inside the outer metal shell (101), an annular groove (103) being provided at the top of the outer metal shell (101), a plurality of slots (104) being provided on the inner wall of the outer metal shell (101) in an annular array, each group of the slots (104) being connected to the annular groove (103), a plurality of plug-in blocks (105) being fixedly connected to the outer wall of the inner metal friction ring (102) in an annular array, each group of the plug-in blocks (105) being respectively plugged into the interior of each group of the slots (104); A fixing mechanism (2), the fixing mechanism (2) comprising a connecting ring (201) fixedly connected to the top of the inner metal friction ring (102), the connecting ring (201) being adapted to the annular groove (103) and inserted into the inside of the annular groove (103), the top of the connecting ring (201) being provided with a plurality of connecting grooves (202) in an annular array, the inside of each group of the connecting grooves (202) being provided with a connecting nut (203) threadedly connected to the outer metal shell (101).

2. A forklift bimetallic brake hub according to claim 1, characterized in that: A second cavity (107) is provided between the inner wall of the outer metal shell (101) and the outer wall of the inner metal friction ring (102); a first cavity (106) is provided between the side of each group of the plug blocks (105) away from the inner metal friction ring (102) and the inner wall of the slot (104); the interiors of the second cavity (107) and the first cavity (106) are both filled with heat transfer oil (108); and each group of the connecting grooves (202) is connected to each group of the first cavity (106).

3. A forklift bimetallic brake hub according to claim 2, characterized in that: The inner wall of each group of the slots (104) is symmetrically provided with connecting grooves (110), and the connecting grooves (110) are connected to the first cavity (106) and the second cavity (107).

4. A forklift bimetallic brake hub according to claim 1, characterized in that: The bottom of the inner metal friction ring (102) and the inner bottom wall of the outer metal shell (101) are both provided with second sealing grooves (207), and the interiors of the two groups of the second sealing grooves (207) are provided with matching second silicone rubber sealing rings (208), and the second silicone rubber sealing rings (208) are in contact with both the inner metal friction ring (102) and the outer metal shell (101).

5. A forklift bimetallic brake hub according to claim 1, characterized in that: The bottom of the connecting ring (201) and the inner bottom wall of the annular groove (103) are both provided with a first sealing groove (205), and the interiors of the two groups of the first sealing grooves (205) are provided with matching first silicone rubber sealing rings (206), and the first silicone rubber sealing rings (206) are in contact with both the outer metal shell (101) and the connecting ring (201).

6. A forklift bimetallic brake hub according to claim 1, characterized in that: The inner bottom wall of each group of the connecting grooves (202) is provided with a silicone rubber sealing gasket (204) fixedly connected to the connecting ring (201), and each group of the silicone rubber sealing gasket (204) is respectively in contact with each group of the connecting nuts (203).

7. A forklift bimetallic brake hub according to claim 1, characterized in that: A plurality of reinforcing rib plates (109) are fixedly connected to the outer wall of the outer metal shell (101) in an annular array.

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