Coupling assembly

Abstract

The coupler assembly comprises a first coupler, a second coupler and a connecting piece, the first coupler and the second coupler are connected through the connecting piece, the connecting piece comprises an elastic layer and a supporting layer, the elastic layer is located on the inner side of the supporting layer, the elastic layer comprises a plurality of elastic blocks distributed at intervals, and the elastic blocks are located on the inner side of the supporting layer. The first coupler and the second coupler are both provided with inserting parts, and the inserting parts are inserted into gaps between the adjacent elastic blocks and are in close fit with the elastic blocks. The connecting piece comprises the elastic layer and the supporting layer, the elastic layer is tightly matched with the inserting portion of the coupler, the supporting layer provides enough rigidity, and combination of the coupler can be better achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting pieces, in particular to a coupling assembly. Background Art

[0002] like Figure 1 As shown, there are three different connecting elements between the existing wheel box and the motor, including two different couplings (motor side coupling 1', worm side coupling 2') and a connecting piece 3'. The two couplings are different in that one is connected to the worm and the other is connected to the motor shaft, and the structures of the two couplings are also different. There is a connecting piece 3' made of rubber material between the two couplings, which is used to transmit the motor torque to the worm. The connecting piece 3' is made of rubber and cannot provide sufficient rigidity, nor can it combine the two couplings well.

[0003] Therefore, it is necessary to design a coupling assembly that better realizes the combination of two couplings. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a coupling assembly which can better realize the combination of two couplings.

[0005] The utility model provides a coupling assembly, comprising a first coupling, a second coupling and a connecting piece, wherein the first coupling and the second coupling are connected via the connecting piece, the connecting piece comprises an elastic layer and a supporting layer, the elastic layer is located on the inner side of the supporting layer, the elastic layer comprises a plurality of elastic blocks distributed at intervals, the first coupling and the second coupling are both provided with a plug-in portion, the plug-in portion is inserted into a gap between adjacent elastic blocks, and is tightly matched with the elastic blocks.

[0006] Furthermore, the support layer is circular in shape, and a plurality of elastic blocks protrude from the inner wall of the support layer toward the center of the circle.

[0007] Furthermore, the cross-sectional shape of the elastic block along the radial plane is a triangle, and the elastic block gradually decreases from the inner wall of the support layer toward the center of the circle.

[0008] Furthermore, the gap between adjacent elastic blocks is a rectangular groove.

[0009] Furthermore, the first coupling and the second coupling have the same structure.

[0010] Further, the first coupling and the second coupling each include a chassis and the plug-in portion, the plug-in portion protrudes from a side surface of the chassis, and a plurality of the plug-in portions are arranged on the chassis at intervals.

[0011] Furthermore, the chassis is disc-shaped.

[0012] Further, the total number of the plug-in parts on the first coupling and the second coupling is the same as the number of the elastic blocks.

[0013] Further, the plug-in parts on the first coupling and the second coupling are sequentially inserted into the gaps between the elastic blocks at intervals.

[0014] Furthermore, a boss is provided on the other side of the chassis, and a plurality of reinforcing ribs are connected between the boss and the edge of the chassis.

[0015] After adopting the above technical solution, the following beneficial effects are achieved:

[0016] The connecting piece in the utility model comprises an elastic layer and a supporting layer. The elastic layer is closely matched with the plug-in part of the coupling. The supporting layer provides sufficient rigidity, so as to better realize the combination of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0018] Figure 1 It is an exploded view of the two existing couplings and the connecting parts;

[0019] Figure 2 is a schematic diagram of a coupling assembly in one embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of a connecting member in one embodiment of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of one of the couplings in one embodiment of the utility model.

[0022] Reference table of reference numerals:

[0023] First coupling 1: chassis 11, plug-in portion 12, boss 13, reinforcement rib 14

[0024] Second coupling 2;

[0025] Connecting member 3: elastic layer 31 , supporting layer 32 , elastic block 311 , gap 312 . DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0027] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a variety of structural modes and implementation modes can be replaced by those skilled in the art. Therefore, the following specific implementation methods and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.

[0028] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0029] In some embodiments of the present invention, Figure 2-3 As shown, the coupling assembly includes a first coupling 1, a second coupling 2 and a connecting member 3. The first coupling 1 and the second coupling 2 are connected via the connecting member 3. The connecting member 3 includes an elastic layer 31 and a supporting layer 32. The elastic layer 31 is located on the inner side of the supporting layer 32. The elastic layer 31 includes a plurality of elastic blocks 311 distributed at intervals. The first coupling 1 and the second coupling 2 are both provided with a plug-in portion, which is inserted into a gap 312 between adjacent elastic blocks 311 and fits tightly with the elastic blocks 311.

[0030] Specifically, Figure 2 As shown, the first coupling 1 , the connecting member 3 and the second coupling 2 are connected in sequence from left to right, and the connecting member 3 is connected between the first coupling 1 and the second coupling 2 .

[0031] like Figure 3 The connecting member 3 includes an elastic layer 31 and a supporting layer 32. The supporting layer 32 is arranged on the outside of the elastic layer 31. The rigidity of the supporting layer 32 is greater than that of the elastic layer 31, and is used to support the elastic layer 31, thereby improving the overall rigidity of the connecting member 3. The elastic layer 31 acts as a damping element to improve the NVH performance.

[0032] The “tight fit” in the present invention includes an interference fit and a transition fit, and the plug-in portion contacts and is pressed tightly against the elastic block 311 , and there is no looseness between the two.

[0033] Preferably, the supporting layer 32 is made of hard plastic, and the elastic layer 31 is made of rubber.

[0034] The elastic layer 31 includes a plurality of elastic blocks 311 . The plurality of elastic blocks 311 are evenly spaced apart in the supporting layer 32 , and gaps 312 are left between adjacent elastic blocks 311 .

[0035] like Figure 4As shown, taking the first coupling 1 as an example, the first coupling 1 includes a plug-in portion 12, the plug-in portion 12 is inserted into the gap 312, and the two side surfaces of the plug-in portion 12 are in close contact with the elastic blocks 311 on both sides.

[0036] In this embodiment, since the connecting member includes an elastic layer 31 and a supporting layer 32, the elastic layer 31 is tightly matched with the plug-in portion 12 of the coupling, and the supporting layer 32 provides sufficient rigidity, the coupling can be better assembled.

[0037] Furthermore, if Figure 3 As shown, the support layer 32 is circular in shape, and a plurality of elastic blocks 311 protrude from the inner wall of the support layer 32 toward the center of the circle.

[0038] Specifically, a plurality of elastic blocks 311 are evenly spaced and arranged in the inner circle of the support layer 32, and the plurality of elastic blocks 311 are radially distributed, and the midline of the elastic block 311 passes through the center of the support layer 32. The gaps 312 between adjacent elastic blocks 311 are also radially distributed, and the midline thereof passes through the center of the support layer 32.

[0039] Accordingly, if Figure 4 As shown, taking the first coupling 1 as an example, the plug-in parts 12 of the first coupling 1 are also distributed radially. Similarly, the arrangement and structure of the plug-in parts of the second coupling 2 are exactly the same as those of the first coupling 1.

[0040] Furthermore, if Figure 3 As shown, the cross-sectional shape of the elastic block 311 along the radial plane is a triangle, and the elastic block 311 gradually decreases from the inner wall of the support layer 32 toward the center of the circle, so that the plug-in portion can be inserted into the gap 312 between the elastic blocks.

[0041] Furthermore, if Figure 3 As shown, the gap 312 between adjacent elastic blocks 311 is a rectangular groove, and the cross-section of the plug-in portion is approximately rectangular. After the plug-in portion is inserted into the gap 312, it can fit tightly with the gap 312.

[0042] Furthermore, if Figure 2 As shown, the first coupling 1 and the second coupling 2 have the same structure, and both the first coupling 1 and the second coupling 2 can be connected to the motor and the worm, thereby reducing the manufacturing cost of the coupling assembly.

[0043] Furthermore, if Figure 4 As shown, the first coupling 1 and the second coupling 2 both include a chassis and a plug-in portion, the plug-in portion protrudes from one side of the chassis, and a plurality of plug-in portions are arranged on the chassis at intervals.

[0044] Taking the first coupling 1 as an example, the first coupling 1 includes a chassis 11 and a plug-in portion 12 . The plug-in portion 12 protrudes from one side of the chassis 11 , and a plurality of plug-in portions 12 are arranged on the chassis 11 at intervals.

[0045] Furthermore, if Figure 4 As shown, the chassis is disc-shaped.

[0046] Furthermore, the total number of the plug-in parts on the first coupling 1 and the second coupling 2 is the same as the number of the elastic blocks 311 .

[0047] In this embodiment, Figure 4 As shown, the first coupling 1 is provided with five plug-in parts 12, and the second coupling 2 is also provided with five plug-in parts. Figure 3 As shown, there are ten elastic blocks 311 , and ten gaps 312 are formed between the elastic blocks 311 . Each gap 312 is used to insert a plug-in portion.

[0048] Optionally, the plug-in parts and the elastic blocks may be provided in other numbers.

[0049] Furthermore, the plug-in parts on the first coupling 1 and the second coupling 2 are sequentially inserted into the gaps 312 between the elastic blocks 311 at intervals.

[0050] Specifically, during assembly, the first coupling 1 and the second coupling 2 are relatively rotated at a certain angle, so that the plug-in parts on the first coupling 1 and the second coupling 2 are inserted into the plurality of gaps 312 in sequence and at intervals.

[0051] Furthermore, if Figure 2 As shown, a boss 13 is provided on the other side of the chassis 11, and a plurality of reinforcing ribs 14 are connected between the boss 13 and the edge of the chassis 11. The boss 13 and the reinforcing ribs 14 are used to increase the structural strength of the coupling to prevent the coupling from breaking.

[0052] The elastic layer of the connector in the utility model is closely matched with the plug-in part of the coupling, and the supporting layer of the connector provides sufficient rigidity, so that the coupling can be better combined. In addition, the structures of the first coupling and the second coupling are completely the same, which reduces the cost of the coupling assembly.

[0053] The above description is only the principle and preferred embodiment of the utility model. It should be pointed out that for ordinary technicians in this field, on the basis of the principle of the utility model, several other variations can be made, which should also be regarded as the protection scope of the utility model.

Claims

1. A coupling assembly, comprising a first coupling, a second coupling and a connecting member, wherein the first coupling and the second coupling are connected via the connecting member, characterized in that: The connecting member includes an elastic layer and a supporting layer, wherein the elastic layer is located on the inner side of the supporting layer, and the elastic layer includes a plurality of elastic blocks distributed at intervals. The first coupling and the second coupling are both provided with a plug-in portion, and the plug-in portion is inserted into the gap between adjacent elastic blocks and tightly fits with the elastic blocks.

2. The coupling assembly according to claim 1, characterized in that: The support layer is circular in shape, and a plurality of elastic blocks protrude from the inner wall of the support layer toward the center of the circle.

3. The coupling assembly according to claim 2, characterized in that: The cross-sectional shape of the elastic block along the radial plane is a triangle, and the elastic block gradually decreases from the inner wall of the support layer toward the center of the circle.

4. The coupling assembly according to claim 3, characterized in that: The gaps between adjacent elastic blocks are in the form of rectangular grooves.

5. The coupling assembly according to claim 1, characterized in that: The first coupling and the second coupling have the same structure.

6. The coupling assembly according to claim 5, characterized in that: The first coupling and the second coupling both include a chassis and the plug-in portion, the plug-in portion protrudes from a side surface of the chassis, and a plurality of the plug-in portions are arranged on the chassis at intervals.

7. The coupling assembly according to claim 6, characterized in that: The bottom plate is in the shape of a disc.

8. The coupling assembly according to claim 5, characterized in that: The total number of the plug-in parts on the first coupling and the second coupling is the same as the number of the elastic blocks.

9. The coupling assembly according to claim 5, characterized in that: The plug-in parts on the first coupling and the second coupling are sequentially inserted into the gaps between the elastic blocks at intervals.

10. The coupling assembly according to claim 6, characterized in that: A boss is provided on the other side of the chassis, and a plurality of reinforcing ribs are connected between the boss and the edge of the chassis.

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