CN2478832Y

CN2478832Y - Torsional spring clutch for tillage machine

Info

Publication number: CN2478832Y
Application number: CN 01213738
Authority: CN
Inventors: 王石罗
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-27
Filing date: 2001-03-27
Publication date: 2002-02-27
Anticipated expiration: 2011-03-27

Abstract

A torsion clutch of cultivator uses a torsion spring connecting an active shaft and an inactive shaft to realize the clutch between the active and inactive shafts, to realize the steering of cultivator without stop, thereby effectively resolving the problems of tooth-embed clutch cultivator, as large operation force and easy tooth beat failure.

Description

Cultivator torsional spring type power-transfer clutch

Cultivator torsional spring type power-transfer clutch belongs to agricultural mechanical field.

Traditional cultivator power-transfer clutch is to adopt dental clutch; This power-transfer clutch is used for realizing turning on the two-wheel cultivator and does not shut down (being that prime power is in operative condition) and cultivator does not stop to travel.One pair of dental clutch is housed respectively on two road wheels, when need turn to, make a power-transfer clutch on the road wheel be in released state, and the power-transfer clutch on another road wheel is in engagement state, like this, a road wheel does not rotate, and another road wheel rotates in the same old way, thereby realizes turning to.Be in released state when two dental clutches are even, then can realize not shutting down and stop to travel of cultivator.This power-transfer clutch is used for realizing on the single-wheel cultivator not shutting down and stops to travel of cultivator.Because dental clutch is wanted transfer torque when engagement state, so will make its separation, must give very big separating force, and, make its joint in released state, because the tooth embedding is paid half and is in slew mode, and second half remains static, so beat tooth especially easily and lost efficacy,, and beat tooth easily and the problem that lost efficacy so that this dental clutch is used on the cultivator long-term existence operating effort is big.

The purpose of this utility model is that a kind of cultivator torsional spring type power-transfer clutch will be provided, and it is big that it can solve the long-standing operating effort of traditional cultivator effectively, and beats the problem that tooth lost efficacy easily.

The purpose of this utility model is achieved in that at the two ends of the imput shaft of two-wheel cultivator and is contained on the driven axle at two ends and is respectively arranged with single head, double end or bull torsion spring, an end of the imput shaft of single-wheel cultivator is provided with single head, double end or bull torsion spring with the driven axle that is contained in same end.When torsion spring rotated together with imput shaft, because the friction force between torsion spring and the imput shaft diameter of torsion spring is diminished, thereby banding imput shaft and driven axle rotates driven axle and imput shaft together, at this moment the torsional spring type power-transfer clutch was in engagement state.Cultivator is realized cruising, when placing the spring tail of active axle head that the different imput shaft of torsion spring are rotated by the effector contact, torsion spring just can not banding imput shaft and driven axle, and at this moment the torsional spring type power-transfer clutch is in released state, thereby has realized turning to of two-wheel cultivator.When a torsional spring type power-transfer clutch on two on the two-wheel cultivator and the single-wheel cultivator was in released state, then cultivator had been realized not shutting down and has been stopped travelling.Experimental results show that: the actuating force that the different imput shaft of torsion spring are rotated together is very little, not as good as 1/10th of the dental clutch that transmits same torque.

In sum, the operating effort that the utility model has solved traditional cultivator dental clutch existence effectively is big, and beats the problem that tooth lost efficacy easily.

This reality is made later-model concrete structure and is provided by following embodiment and accompanying drawing thereof.

According to the cultivator torsional spring type power-transfer clutch that the utility model proposes.Its

Fig. 1 is: two-wheel cultivator torsional spring type power-transfer clutch master looks scheme drawing.

Fig. 2 is: single-wheel cultivator torsional spring type power-transfer clutch master looks scheme drawing.

Fig. 3 is: single head torsion spring scheme drawing.

Fig. 4 is: double end torsion spring scheme drawing.

Fig. 5 is: A is to scheme drawing.

Below in conjunction with institute's drawings attached, describe in detail according to specific structural details and the service condition that the utility model proposes.

At the two ends of the imput shaft of two-wheel cultivator driven axle is housed respectively with reference to Fig. 1,3,4,5, driven axle can rotate around imput shaft, be fixed with road wheel on the driven axle respectively, the torsion spring that is connected imput shaft and driven axle is housed respectively on the driven axle at imput shaft and two ends, at the spring tail place of torsion spring, effector is housed respectively.When imput shaft direction is as shown by arrows rotated, be that effector does not contact the spring tail, then torsion spring is under the effect of friction force, rotate together with imput shaft, the torsion spring internal diameter diminishes in the process of rotation, banding imput shaft and driven axle rotate driven axle and imput shaft together and drive the road wheel that is fixed on the driven axle and rotate simultaneously, thereby realize the straight-line travelling of two-wheel cultivator.When need turn to, only need one in two effectors spring tail that contacts torsion spring as shown by arrows, torsion spring can not be rotated together with imput shaft, at this moment torsion spring can not banding imput shaft and driven axle, thereby driven axle can not rotate together with imput shaft, the road wheel that is fixed on this driven axle has just stopped rotation, and another road wheel rotates in the same old way, thereby realizes turning to of two-wheel cultivator.When two effectors contacted each self-corresponding torsion spring spring tail simultaneously, two road wheels all can not rotate, thereby realizing not shutting down stops to travel of cultivator.

With reference to Fig. 2, the torsion spring that connects imput shaft and driven axle is housed on the single-wheel cultivator, at the spring tail of torsion spring effector is housed, when effector does not contact the spring tail, the cultivator cruising, when effector contact spring tail, cultivator has been realized not shutting down and has been stopped travelling.In order to guarantee that torsion spring has enough flexibilities, and can transmit big moment of torsion, that torsion spring can be made into double end or bull.

Claims

1, a kind of cultivator torsional spring type power-transfer clutch, by imput shaft (4), driven axle (2), (6), road wheel (1), (7), torsion spring (3), (5) and effector (9), (11) are formed, and it is characterized in that: connection imput shaft (4) and driven axle (2), the torsion spring (3) of (6), (5) are arranged.

2, cultivator torsional spring type power-transfer clutch according to claim 1, it is characterized in that: torsion spring (3), (5) can be single head, double end or bull.

3, cultivator torsional spring type power-transfer clutch according to claim 1 is characterized in that: be shaped on spring tail (13) on torsion spring (3), (5).