Finger-type coupling manufactured by welding method

Abstract

The utility model discloses a finger type coupler adopting a welding manufacturing method, which comprises a shaft seat, a finger rod seat and finger rods, the shaft seat is connected with a driving shaft, the finger rod seat is welded with one side of the shaft seat, and a plurality of groups of finger rods are welded along the circumferential direction of the finger rod seat. Parts meeting the design requirements can be accurately manufactured only by adopting simple conventional machining methods such as turning and milling; compared with the traditional integral processing which needs to give consideration to the processing of various shapes and sizes on a complex coupling structure, only the processing of a single part of the shaft seat needs to be focused at present, so that the requirement on the precision of processing equipment is reduced, the processing time is greatly shortened, the parallel production can be realized, and the production efficiency is improved. The manufacturing period of the whole finger-type coupler is greatly shortened, the production efficiency is greatly improved, and the machining cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical transmission device technical field, specifically, the utility model relates to a kind of finger coupling of welding manufacturing method. BACKGROUND

[0002] At present, green and yellow storage harvesting machinery, such as raking machine, spreading machine, generally adopts universal coupling driving for large disc transmission, but foreign countries also adopt finger coupling driving.

[0003] Since finger coupling driving is reliable and low in maintenance cost, it is particularly suitable for use in multi-disc transmission folding machines such as raking machines and spreading machines, and is expected to be widely used.

[0004] However, the existing finger coupling is currently manufactured as a whole by casting or forging process, which has long mold manufacturing cycle and high cost, and is difficult to meet the general small-batch production, and the strength and hardness of the finger rod part are not easy to control. INVENTION CONTENTS

[0005] The utility model provides a kind of finger coupling of welding manufacturing method, solve the problem raised in the above background.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a finger coupling made by welding, comprising a shaft seat, a finger rod seat and a finger rod, the shaft seat is connected with the driving shaft, the finger rod seat is welded on one side of the shaft seat, and the finger rod is welded with several groups along the circumferential direction of the finger rod seat.

[0007] Preferably, the finger rod seat is provided with a preset groove welded with the root of the finger rod.

[0008] Preferably, the shaft seat is made of 45# steel and is processed by turning.

[0009] Preferably, the finger rod seat is made of Q345B steel plate and is formed by laser cutting.

[0010] Preferably, the finger rod is made of 45# steel, the weld height is set to 2-3mm, and the working part is treated by quenching.

[0011] The beneficial effects of the above technical scheme are:

[0012] I. This solution only requires simple conventional machining methods such as turning and milling to accurately manufacture parts that meet design requirements. Compared with traditional integral machining, which requires machining multiple shapes and sizes on a complex coupling structure at the same time, now we only need to focus on machining the single shaft seat part. This not only reduces the precision requirements of the machining equipment, but also significantly shortens the machining time. Moreover, parallel production can be carried out, which greatly shortens the entire manufacturing cycle of the finger coupling, greatly improves production efficiency, and reduces machining costs.

[0013] Second, this solution decomposes the finger coupling into three parts. Based on the different functions and stress characteristics of each part during operation, the most suitable material can be selected for manufacturing, thereby optimizing the quality of use. Through this material optimization combination based on the functional characteristics of the parts, the overall performance of the finger coupling is significantly improved. Attached Figure Description

[0014] Fig. 1 This is a three-dimensional schematic diagram provided by this utility model;

[0015] Fig. 2 This is a formal schematic diagram provided by this utility model;

[0016] Fig. 3 This is a side view diagram provided by this utility model;

[0017] in:

[0018] 1. Shaft seat; 2. Finger seat; 3. Finger. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0020] Specifically, such as Figs. 1 to 3 As shown, the technical solution adopted by this utility model is as follows: a finger coupling manufactured by welding, including a shaft seat 1, a finger rod seat 2 and a finger rod 3. The shaft seat 1 is connected to the drive shaft. The finger rod seat 2 is welded to one side of the shaft seat 1. Several sets of finger rods are welded along the circumference of the finger rod seat 2.

[0021] It should be noted that the main body of the bearing seat 1 is cylindrical, with a shaft hole in the center and a keyway machined in the inner circle or a pin hole machined in the radial direction for connection with the drive shaft; an annular mounting surface is provided on the outer periphery for welding the finger rod seat 2;

[0022] The specific requirements for material selection are as follows:

[0023] The shaft seat mainly bears axial force and radial force during operation, and needs to have high strength and rigidity; therefore, high-strength high-quality steel material, such as 45# steel, can be selected; after appropriate heat treatment, the steel material has good comprehensive mechanical properties, can have certain toughness while ensuring the strength of the shaft seat, and prevents fracture due to excessive force in the long-term use process;

[0024] The finger lever seat mainly plays a role of supporting and fixing the finger lever, and has certain requirements for its hardness and strength; at this time, Q345B, 45# and the like can be selected; the laser cutting method is adopted to process the finger lever seat with complex shape, and the cost is relatively low; at the same time, the high strength can ensure that the finger lever seat is not easy to be damaged in the long-term use process, thereby prolonging the service life of the entire coupling;

[0025] The finger lever needs to have high strength, hardness and good elasticity as a component directly transmitting power and buffering vibration; therefore, high-quality structural steel material, such as 45# steel, can be selected; after special heat treatment process, the steel material not only has high strength and hardness, but also maintains good elasticity, can effectively absorb and buffer the vibration and impact generated in the power transmission process, and ensures the smooth operation of the coupling. Through the material optimization combination according to the functional characteristics of the parts, the performance of the finger coupling is significantly improved as a whole.

[0026] The finger lever seat 2 is provided with a preset groove welded with the root of the finger lever 3.

[0027] It should be noted that the finger lever seat 2 is in a ring structure, and a welding bevel (45° V type) is arranged on the inner bottom surface of the preset groove; the ring-shaped mounting surface of the shaft seat 1 is fixed by ring seam welding, and the welding seam has a penetration depth of ≥3 mm.

[0028] The shaft seat 1 is machined by turning with 45# steel.

[0029] It should be noted that the shaft seat 1 is formed by turning with a round steel bar, and the machining cycle is ≤1 hour.

[0030] The finger lever seat 2 is made of Q345B steel plate and is formed by laser cutting.

[0031] It should be noted that the cost of the finger lever seat 2 after cutting with a steel plate is reduced by 60% compared with casting.

[0032] The finger lever 3 is made of 45# steel, and the welding seam height is set to 2-3 mm.

[0033] It should be noted that the finger lever 3 is in a rod structure, one end is provided with a connecting part, which is welded with the preset groove of the finger lever seat 2 through fillet welding, and the weld leg size is 5-7 mm; the other end is a free end, and the end face is rounded (R3 mm) to avoid stress concentration; the finger lever 3 can be selected from 40Cr (high strength) or 45# steel (conventional strength), and the hardness is controlled at HRC 35-40 after quenching treatment.

[0034] The specific working mode is described below by means of specific embodiments: Example 1

[0035] Part processing: shaft seat 1, φ50mm round steel turning shaft hole and keyway (or radial pin hole); finger lever seat 2, 15mm steel plate cutting into ring shape (outer diameter 100mm); finger lever 3, φ20mm bar turning into shape, one end processing 30° bevel (depth 4mm). Example 2

[0036] Welding assembly: the shaft seat 1 and the finger lever seat 2 are fixed by ring seam welding, the weld height is 5mm; fillet welding (welding current 180A, each weld is welded twice); the finger lever 3 is inserted into the preset groove, the weld height is 2mm, intermittent welding 2X10; surface treatment: overall spraying of anti-rust paint (paint film thickness 35-45μm), suitable for agricultural machinery humid operation environment.

[0037] The above has been described by way of example in combination with the drawings, and obviously, the specific implementation of the present application is not limited by the above mode, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the present application; or without improvement, the above concept and technical scheme of the present application are directly applied to other occasions, which are within the protection scope of the present application.

Claims

1. A finger coupling made by a welding method, characterized by, It includes axle seat (1), finger lever seat (2) and finger lever (3), the axle seat (1) is connected with driving axle, the finger lever seat (2) is welded with the side of axle seat (1), the finger lever (3) is welded with several groups along the circumferential direction of finger lever seat (2).

2. A finger coupling made by a welding method according to claim 1, characterized in that: The finger lever seat (2) is provided with a preset groove welded with the root of finger lever (3).

3. A finger coupling made by a welding method according to claim 1, characterized in that: The axle seat (1) is made of 45# steel turning processing.

4. A finger coupling made by a welding method according to claim 1, characterized in that: The material of the finger lever seat (2) is Q345B steel plate, and it is formed by laser cutting.

5. A finger coupling made by a welding method according to claim 1, characterized in that: The material of the finger lever (3) is 45# steel, the height of welding seam is set to 2-3mm, and the working part is treated by quenching.

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