Arc-shaped convex tooth coupling
By designing arc-shaped convex tooth couplings, the left claw disc convex teeth and right claw disc convex teeth of the arc-shaped structure are used for meshing transmission, which solves the shortcomings of the existing couplings in terms of displacement compensation, shock absorption buffering and load bearing, and achieves more efficient coupling performance.
Patent Information
- Application Number
- CN202422752294.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing couplings have shortcomings in compensating the relative displacement of the two axes, cushioning shock absorption and bearing large loads, and it is difficult to meet these needs at the same time.
An arc-shaped convex tooth coupling is designed, which is meshed and driven by the arc-shaped left claw disc convex teeth and the right claw disc convex teeth, and an oil injection hole is provided on the right claw disc to protect the arc-shaped convex teeth.
Compensation for the relative displacement of the two axes, shock absorption buffering and bearing large loads are achieved, and the service life is extended through the oil injection hole and working efficiency is improved.
Smart Images
Figure CN222991967U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an arc-shaped convex tooth coupling, belonging to the technical field of coupling transmission. Background Art
[0002] Couplings are generally divided into rigid couplings and flexible couplings. Usually composed of two parts, they are respectively connected by keys or tight fits, fastened at both ends of the two shafts, and then the two parts are connected by rigidity and elasticity. At present, there are many flexible couplings on the market. Flexible couplings can be further divided into flexible couplings without elastic elements and flexible couplings with elastic elements. Flexible couplings without elastic elements have the ability to compensate for the relative displacement of the two axes and can adapt to the situation where the two axes are not in the same plane, but they cannot buffer and shock absorb. Flexible couplings with elastic elements can achieve buffering and shock absorption, but they cannot bear large loads. Therefore, there is an urgent need to design a coupling that has the functions of compensating for the relative displacement of the two axes, buffering and shock absorption, bearing large loads and is convenient and practical to meet the current needs. Content of the Utility Model
[0003] The purpose of the utility model is to provide an arc-shaped convex tooth coupling. Through the meshing transmission of the arc-shaped left claw disc convex teeth and right claw disc convex teeth, it can compensate for the relative displacement of the two axes, buffer and shock absorb, bear large loads, and an oil injection hole is arranged on the right claw disc to protect the arc-shaped convex teeth and extend the service life, solving the problems existing in the background art.
[0004] The technical solution of the utility model is as follows:
[0005] An arc-shaped convex tooth coupling includes a left claw disc and a right claw disc. A plurality of left claw disc convex teeth and right claw disc convex teeth are respectively arranged on the left claw disc and the right claw disc. The number of left claw disc convex teeth and right claw disc convex teeth is the same, and both sides are arc-shaped structures. The left claw disc convex teeth and the right claw disc convex teeth are meshed with each other; an oil injection hole is arranged on the right claw disc convex teeth.
[0006] Each of the right claw disc convex teeth is arranged in the space between two adjacent left claw disc convex teeth, and each of the left claw disc convex teeth is arranged in the space between two adjacent right claw disc convex teeth. There is a gap between the left claw disc convex teeth and the right claw disc convex teeth, and the tooth width of the right claw disc convex teeth is greater than the tooth width of the left claw disc convex teeth.
[0007] An arc-shaped groove is arranged on the upper surface of the right claw disc convex teeth, and the oil injection hole is arranged at the center position of the arc-shaped groove.
[0008] Two threaded holes are arranged between two adjacent right claw disc convex teeth on the right claw disc. The right claw disc is connected with the coupling fixing seat through the threaded holes and bolts.
[0009] Chamfers are arranged between the top surfaces of the left claw disc convex teeth and the right claw disc convex teeth and the arc-shaped structures.
[0010] The arc-shaped structures on both sides of the convex teeth of the right claw disc are both inclined inward, and both form an included angle with the upper surface of the convex teeth of the right claw disc.
[0011] The included angle is an acute angle.
[0012] Internal splines are provided at the connection parts of the left claw disc and the right claw disc to the main shaft.
[0013] In the utility model, the two sides of the convex teeth of the left claw disc and the right claw disc are set as arc-shaped structures. When the convex teeth of the left claw disc and the right claw disc are in meshing contact, due to the relatively large number of tooth surface contact points, the contact stress generated between the gears is small. Therefore, the contact process is relatively gentle, playing a role in buffering and shock absorption, and smoothly compensating for the relative displacement between the two axes; after running-in for a period of time, the contact area between the convex teeth of the left claw disc and the right claw disc becomes larger, the contact stress gradually decreases, the contact strength increases, and the load-bearing capacity also increases accordingly.
[0014] The beneficial effects of the utility model are as follows: The meshing transmission is carried out through the arc-shaped convex teeth of the left claw disc and the right claw disc, which can compensate for the relative displacement between the two axes, buffer and shock absorb, bear a large load, and an oil injection hole is arranged on the right claw disc to protect the arc-shaped convex teeth, extend the service life, and greatly improve the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the utility model;
[0016] Figure 2 is a schematic structural diagram of the left claw disc of the utility model;
[0017] Figure 3 is the front view of the right claw disc of the utility model;
[0018] Figure 4 is the side view of the right claw disc of the utility model;
[0019] In the figure: left claw disc 1, convex teeth of left claw disc 101, right claw disc 2, convex teeth of right claw disc 201, oil injection hole 202, threaded hole 203, arc-shaped groove 204. DETAILED DESCRIPTION OF THE INVENTION
[0020] The following further illustrates the utility model with reference to the accompanying drawings through examples.
[0021] An arc-shaped convex tooth coupling comprises a left claw disc 1 and a right claw disc 2. A plurality of convex teeth 101 of the left claw disc and convex teeth 201 of the right claw disc are respectively arranged on the left claw disc 1 and the right claw disc 2. The number of the convex teeth 101 of the left claw disc and the convex teeth 201 of the right claw disc is the same, and both sides are arc-shaped structures. The convex teeth 101 of the left claw disc and the convex teeth 201 of the right claw disc are meshed; an oil injection hole 202 is arranged on the convex teeth 201 of the right claw disc.
[0022] Each of the right claw disc convex teeth 201 is disposed within the space between two adjacent left claw disc convex teeth 101, and each of the left claw disc convex teeth 101 is disposed within the space between two adjacent right claw disc convex teeth 201. There is a gap between the left claw disc convex teeth 101 and the right claw disc convex teeth 201, and the tooth width of the right claw disc convex teeth 201 is greater than that of the left claw disc convex teeth 101.
[0023] An arc-shaped groove 204 is provided on the upper surface of the right claw disc convex tooth 201. The oil injection hole 202 is disposed at the center of the arc-shaped groove 204. Oil enters the arc-shaped groove 204 through the oil injection hole 202 and flows along the arc-shaped groove to both sides to reach the left claw disc convex teeth 101 and the right claw disc convex teeth 201 during operation, playing a protective role.
[0024] Two threaded holes 203 are provided between two adjacent right claw disc convex teeth 201 on the right claw disc 2. The right claw disc 2 is connected to the coupling fixing seat 3 through the threaded holes 203 and bolts.
[0025] A chamfer is provided between the top surfaces of the left claw disc convex teeth 101 and the right claw disc convex teeth 201 and the arc-shaped structure to improve the fit between the left claw disc convex teeth 101 and the right claw disc convex teeth 201.
[0026] The arc-shaped structures on both sides of the right claw disc convex tooth 201 are inclined inwardly, and both form an angle with the upper surface of the right claw disc convex tooth 201.
[0027] The angle is an acute angle.
[0028] Internal splines are provided at the connection parts of the left claw disc 1 and the right claw disc 2 with the main shaft, increasing the connection stability and improving the load-bearing capacity.
[0029] In this embodiment, four left claw disc convex teeth 101 are provided on the left claw disc 1. The four left claw disc convex teeth 101 are distributed at 90 degrees. Both side surfaces of each left claw disc convex tooth 101 adopt arc-shaped structures to achieve buffering and shock absorption by increasing the contact points and complete the compensation of the relative displacement of the two axes; each right claw disc convex tooth 201 is disposed within the space between two adjacent left claw disc convex teeth 101, and there is a gap between each right claw disc convex tooth 201 and the two adjacent left claw disc convex teeth 101 for convenient meshing; four right claw disc convex teeth 201 are provided on the right claw disc 2. The four right claw disc convex teeth 201 are distributed at 90 degrees. Both side surfaces of each right claw disc convex tooth 201 adopt arc-shaped structures. Each left claw disc convex tooth 101 is disposed within the space between two adjacent right claw disc convex teeth 201, and there is a gap between each left claw disc convex tooth 101 and the two adjacent right claw disc convex teeth 201. The tooth width of the right claw disc convex teeth 201 is greater than that of the left claw disc convex teeth 101. The arc-shaped structures on both sides of the right claw disc convex teeth form a certain angle with the upper surface (plane) of the right claw disc convex teeth, making the meshing transmission between the right claw disc convex teeth and the left claw disc convex teeth more stable.
[0030] In the present utility model, the two sides of the left claw disc convex teeth 101 and the right claw disc convex teeth 201 are set as arc-shaped structures. When the left claw disc convex teeth 101 and the right claw disc convex teeth 201 are in meshing contact, due to the relatively large number of tooth surface contact points, the contact stress generated between the gears is relatively small. Therefore, the contact process is relatively gentle, playing a role in buffering and shock absorption, and smoothly compensating for the relative displacement between the two axes. After running-in for a period of time, the contact area between the left claw disc convex teeth 101 and the right claw disc convex teeth 201 becomes larger, the contact stress gradually decreases, the contact strength increases, and the load-bearing capacity also increases accordingly. And an oil injection hole is provided on the right claw disc, which can play a role in protecting the convex teeth during the working process, prolonging the service life, and greatly improving the working efficiency.
Claims
1. An arc-shaped convex tooth coupling, characterized in that: The invention comprises a left claw plate (1) and a right claw plate (2), wherein a plurality of left claw plate convex teeth (101) and a plurality of right claw plate convex teeth (201) are respectively provided on the left claw plate (1) and the right claw plate convex teeth (201), the number of the left claw plate convex teeth (101) and the number of the right claw plate convex teeth (201) are the same, and both sides are arc-shaped structures, the left claw plate convex teeth (101) and the right claw plate convex teeth (201) are meshed with each other; and an oil filling hole (202) is provided on the right claw plate convex teeth (201).
2. The arc-shaped convex tooth coupling according to claim 1, characterized in that: Each of the right claw disc convex teeth (201) is arranged in the space between two adjacent left claw disc convex teeth (101), and each left claw disc convex tooth (101) is arranged in the space between two adjacent right claw disc convex teeth (201), and a gap is left between the left claw disc convex teeth (101) and the right claw disc convex teeth (201), and the tooth width of the right claw disc convex teeth (201) is greater than the tooth width of the left claw disc convex teeth (101).
3. An arc-shaped convex tooth coupling according to claim 1 or 2, characterized in that: An arc-shaped groove (204) is provided on the upper surface of the right claw plate protruding tooth (201), and the oil injection hole (202) is arranged at the center position of the arc-shaped groove (204).
4. An arc-shaped convex tooth coupling according to claim 1 or 2, characterized in that: Two threaded holes (203) are provided between two adjacent right claw plate protruding teeth (201) on the right claw plate (2), and the right claw plate (2) is connected to the coupling fixing seat (3) via the threaded holes (203) and bolts.
5. An arc-shaped convex tooth coupling according to claim 1 or 2, characterized in that: Chamfers are provided between the top surfaces of the left claw disc protruding teeth (101) and the right claw disc protruding teeth (201) and the arc-shaped structure.
6. An arc-shaped convex tooth coupling according to claim 1 or 2, characterized in that: The arc-shaped structures on both sides of the right claw plate convex tooth (201) are both arranged to be inclined inwards, and are both provided with an angle with the upper surface of the right claw plate convex tooth (201).
7. An arc-shaped convex tooth coupling according to claim 1 or 2, characterized in that: Internal splines are provided at the connection locations between the left claw disc (1) and the right claw disc (2) and the main shaft.