Friction inserting type clutch and its mfg. method

Abstract

A friction-jaw clutch. Driving disc is equipped on the driving wheel, and driven disc is equipped on the driven shaft. The driven disc and the driven shaft are tabled at radial direction, and skidding bond at axial direction; and driven spring is equipped on the driven shaft. The character is that dogtooth or beard is equipped on the driving disc, the correspondent is equipped on the driven disc, but they are asymmetrical shape. Backlash of the dogtooth and beard is less than four millimeter, or fit angle is less than four degree. The invention has the advantage of friction and jaw clutch.

Description

technical field [0001] The invention relates to a mechanical clutch, in particular to a friction clutch. This clutch is particularly suitable for use on machines with a light driven shaft and its attachments, especially agricultural machines such as ditchers; but it is also suitable for any other machine. The present application also relates to a method of manufacturing such a clutch. Background technique [0002] Clutches are widely used in the mechanical field, and are mainly used for the separation and combination of shafts during machine operation. According to the combination elements, there are mainly two types: friction type and meshing type. The friction type is widely used in automobiles, agricultural vehicles, tractors, And various agricultural machinery driven by tractors. Friction clutches mainly include flat disc friction clutches and conical friction clutches, and the former, especially the multi-disc flat disc friction clutches, is the most widely used. ...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional flat disc friction clutch also has many shortcomings: 1. The separation effect is poor, and even the separation is unclear

This phenomenon will bring great potential safety hazards, because: there are many cutting knives on the cutter head, and when the ditching machine stops ditching and turning at the head of the field or driving on the road, the high-speed rotating cutter head will hurt the operator and pedestrians. bring great danger

This problem has become a major difficulty in the design of the trencher, and it is a long-standing safety hazard since the birth of the trencher;

[0004] 2. Easy to slip after combination

When the trencher works, the load is heavy, the working conditions are harsh, and the clutch seal is poor. Especially in rainy days, muddy water will enter between the friction plates, resulting in slippage;

[0005] 3. The structure of the traditional flat plate clutch is complex and heavy

[0006] 4. Due to the complex structure, it is difficult to maintain, replace parts and debug, and can only be repaired and debugged by skilled workers who have received professional training

The space between the driven plate and the active plate is very small, and the adjustment distance between the three release levers and the release bearing has a tolerance of 0.3 mm, which cannot be adjusted accurately by unskilled operators; if the adjustment is not correct, insufficient bonding force will occur and the friction surface will be burned Or the problem of obvious separation; the users of agricultural machinery, such as farmers, mechanics, etc., are difficult to master their maintenance and debugging technology, causing inconvenience in use;

[0007] 5. Due to the complex structure, its manufacturing cost is relatively high;

[0008] 6. The operating parts are easily damaged

During the separation, the separation claws and separation bearings are under great pressure, and they are in high-speed operation, the friction is very serious, and the separation bearings are often damaged, especially on agricultural machinery with poor operating conditions, muddy water, dust, and sundries are heavier the extent of its damage

[0009] In order to solve this long-standing problem, two patents with patent numbers 91213865.3 and 95240413.3 provide a plan for using jaw clutches, but they have not been used in production so far. damage to teeth

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