CN201934546U

CN201934546U - Automatic bidirectional clutch

Info

Publication number: CN201934546U
Application number: CN201020523414XU
Authority: CN
Inventors: 朱永林
Original assignee: Wuxi Kaixuan Motor Co Ltd
Current assignee: Wuxi Kaixuan Motor Co Ltd
Priority date: 2010-09-09
Filing date: 2010-09-09
Publication date: 2011-08-17
Anticipated expiration: 2020-09-09

Abstract

The utility model relates to an automatic bidirectional clutch, comprising a housing formed by the connection of a front end cover and a rear end cover. A driving shaft is rotatably fixed to the front end cover, and a driven shaft is rotatably fixed to the rear end cover. A centrifugal sliding pin device is disposed at a shaft end of the driving shaft arranged in the housing, and a driven plate is disposed at a shaft end of the driven shaft arranged in the housing. A first groove is disposed on the surface of the driven plate. A boss is disposed on the inner wall surface of the first groove. The centrifugal sliding pin device is in a clearance fit with the first groove. The utility model is advantageous in that a centrifugal sliding pin spring return structure is adopted; the driving shaft and the driven shaft are transmitted by the joint of a drive pin and the boss; the automatic bidirectional clutch is simple in structure, light in weight, short in engaging time and small in inertia; the automatic bidirectional clutch can transmit a bidirectional torque and have a small size and big transmitting torque; after engaging, the drive shaft and the driven shaft will not slide with respect to each other, and the transmission ratio is constant.

Description

Full-automatic bidirectional clutch

Technical field

The utility model relates to the clutch that is applied in all kinds of machine driven systems, specifically a kind of full-automatic bidirectional clutch.

Background technique

Clutch in the machine driven system has two big classes: a class is a controlled clutch, and a class is an auto-controlled clutch.No matter controlled clutch is mechanically actuated, eletromagnetic-operating, Pneumatic pressure operated or hydraulic operation, a cover operation system is all arranged, complex structure.Common auto-controlled clutch is general to adopt the pressure by steel ball, roller, voussoir, brake shoe to produce frictional force and the structure of transmission, and volume is bigger, and weight is heavier.

Summary of the invention

The utility model provides a kind of full-automatic bidirectional clutch at the problems referred to above, and this clutch configuration is simple, and volume is little, and is in light weight.

According to the technical solution of the utility model: a kind of full-automatic bidirectional clutch, comprise housing, described housing comprises front cover and the rear end cover that is fixed together, and rotatably is fixed with driving shaft on the front cover, rotatably is fixed with driven shaft on the rear end cover; The axle head that described driving shaft is positioned at described housing is provided with centrifugal sliding pin device, the axle head that described driven shaft is positioned at described housing is provided with driven disc, the card of described driven disc is provided with first groove, the internal face of the described first groove groove is provided with boss, and described centrifugal sliding pin device Spielpassung is in described first groove.

Described centrifugal sliding pin device comprises that the quadrature setting is fixedly connected on the guide pillar of described driving shaft axle head, is with first driving pin and first spring on the described guide pillar successively, and the outer end of described first spring is located by first back-up ring.

The outer end of described first driving pin is provided with second groove, and described first spring and the described first back-up ring Spielpassung are in this second groove.

The axle head of described driving shaft is provided with pin-and-hole, and described guide pillar is through in this pin-and-hole, and locatees with second back-up ring.

Described centrifugal sliding pin device comprises that the quadrature setting is fixedly connected on the sliding pipe of described driving shaft axle head, the middle part of described sliding pipe is provided with first bearing pin, be fixedly connected with second spring on described first bearing pin, be fixedly connected with second driving pin on the other end of described second spring, the described second driving pin Spielpassung is in described sliding pipe.

Be fixedly connected with described second driving pin by second bearing pin on the other end of described second spring.

Described driving shaft on described front cover, and with the 3rd back-up ring axially locating, is provided with pad between described the 3rd back-up ring and the described bearing by bearing fixing.

Described driven shaft on described rear end cover, and with the 3rd back-up ring axially locating, is provided with pad between described the 3rd back-up ring and the described bearing by bearing fixing.

Technique effect of the present utility model is: adopt centrifugal sliding pin spring reset structure, driving shaft and driven shaft engage transmission by driving pin and boss, utilizing self rotating speed to control driving shaft engages or disengagement with the automatic of driven shaft, simple in structure, in light weight, engaging time is short, and inertia is little; Can directly connect with motor, do not reach rated speed before, motor smooth starting under zero load has improved the heating of motor; Can transmit two-way torque, boundary dimension is little, and transmitting torque is big, and engaging the back main driven shaft does not have slide relative, and velocity ratio is constant.

Description of drawings

Fig. 1 is first kind of embodiment's of the utility model a structural representation.

Fig. 2 is the plan view of Fig. 1.

Fig. 3 is second kind of embodiment's of the utility model a structural representation.

Fig. 4 is the plan view of Fig. 3.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Shown in Fig. 1 ~ 4, described full-automatic bidirectional clutch comprises the housing that is made of front cover 1 that is fixed together and rear end cover 6, and front cover 1 is fixed on the rear end cover 6 by screw 15.Also be provided with tapped hole 16 on front cover 1 and the rear end cover 6, the utility model be fixed in the machine driven system by tapped hole 16.Rotatably be fixed with driving shaft 5 on the front cover 1, driving shaft 5 is fixed on the front cover 1 by bearing 2, and with the 3rd back-up ring 4 axially locating, is provided with pad 3 between the 3rd back-up ring 4 and the bearing 2.Rotatably be fixed with driven shaft 12 on the rear end cover 6, driven shaft 12 is fixed on the rear end cover 6 by bearing 2, and with the 3rd back-up ring 4 axially locating, is provided with pad 3 between the 3rd back-up ring 4 and the bearing 2.The axle head that driving shaft 5 is positioned at housing is provided with centrifugal sliding pin device, the axle head that driven shaft 12 is positioned at housing is provided with driven disc 7, the card of driven disc 7 is provided with first groove 22, the internal face of first groove 22 is provided with boss 8, and centrifugal sliding pin device Spielpassung is in first groove 22.

As shown in Figure 1 and Figure 2, first kind of embodiment's of the utility model centrifugal sliding pin device is the centrifugal sliding pin device of inner slide formula.It comprises that the quadrature setting is fixedly connected on the guide pillar 9 of driving shaft 5 axle heads.A kind of means of fixation of guide pillar 9 is: the axle head at driving shaft 5 is provided with pin-and-hole 24, and guide pillar 9 is through in this pin-and-hole 24, and locatees with second back-up ring 13.Guide pillar 9 also can adopt other means of fixation, and for example welding is fixed on the driving shaft 5.The outer end that is with first driving pin 11 and first spring, 10, the first springs 10 on the guide pillar 9 successively is by first back-up ring, 14 location.First driving pin 11 is enclosed within outside the guide pillar 9, slides on guide pillar 9, and guide pillar 9 is as the inner slide of first driving pin 11.

The outer end of first driving pin 11 also can be provided with second groove, 23, the first springs 10 and first back-up ring, 14 Spielpassung in this second groove 23.

The working principle of the centrifugal sliding pin device of inner slide formula is: when driving shaft 5 does not turn round, first driving pin 11 is in position as shown in Figure 1 under the pressure of first spring 10, driven

disc

7 and 11 of first driving pins are in separated state, and driving shaft 5 is thrown off with driven disc 7; During driving shaft 5 runnings (two-way), first driving pin 11 overcomes first spring 10 under action of centrifugal force pressure outwards moves the internal face place of first groove 22 that arrives driven disc 7 and boss 8 transferring power by driven disc 7, driven disc 7 engages with driving shaft 5 by first driving pin 11, with the transmission of power of driving shaft 5 to driven shaft 12 that driven disc 7 is fixedlyed connected on.

As shown in Figure 3, Figure 4, second kind of embodiment's of the utility model centrifugal sliding pin device is the centrifugal sliding pin device of external slideway formula.It comprises that the quadrature setting is fixedly connected on the sliding pipe 19 of driving shaft 5 axle heads, the middle part of sliding pipe 19 is provided with first bearing pin 20, be fixedly connected with second spring 18 on first bearing pin 20, be fixedly connected with second driving pin, 17, the second driving pins, 17 Spielpassung in sliding pipe 19 by second bearing pin 21 on the other end of second spring 18.Second driving pin 17 is positioned at sliding pipe 19, slides in sliding pipe 19, and sliding pipe 19 is as the external slideway of second driving pin 17.

The working principle of the centrifugal sliding pin device of external slideway formula is: when driving shaft 5 does not turn round, second driving pin 17 is in position as shown in Figure 3 under the pulling force of second spring 18, driven disc 7 and 17 of second driving pins are in separated state, and driving shaft 5 is thrown off with driven disc 7; During driving shaft 5 runnings (two-way), second driving pin 17 overcomes second spring 18 under action of centrifugal force pulling force outwards moves the internal face place of first groove 22 that arrives driven disc 7 and boss 8 transferring power by driven disc 7, driven disc 7 engages with driving shaft 5 by second driving pin 17, with the transmission of power of driving shaft 5 to driven shaft 12 that driven disc 7 is fixedlyed connected on.

The utility model adopts centrifugal sliding pin spring reset structure, and driving shaft 5 and driven shaft 12 engage transmission by driving pin 11,17 and boss 8, have the following advantages:

1, utilize self rotating speed to control driving shaft and engage or disengagement with the automatic of driven shaft, simple in structure, in light weight, engaging time is short, and inertia is little.

2, can directly connect with motor, do not reach rated speed before, motor smooth starting under zero load has improved the heating of motor.

3, can transmit two-way torque, boundary dimension is little, and transmitting torque is big, and engaging the back main driven shaft does not have slide relative, and velocity ratio is constant.

The utility model can be widely used in all kinds of machine driven systems, as: in circuit breaker, switch motor special and the motor-operating mechanism, realizing the automatic joint and the disengagement of power transmission system, is the first-selection that realizes the miniaturization of power transmission clutch system.

Claims

1. full-automatic bidirectional clutch, comprise housing, described housing comprises the front cover (1) and rear end cover (6) that is fixed together, rotatably be fixed with driving shaft (5) on the front cover (1), rotatably be fixed with driven shaft (12) on the rear end cover (6), it is characterized in that: the axle head that described driving shaft (5) is positioned at described housing is provided with centrifugal sliding pin device, the axle head that described driven shaft (12) is positioned at described housing is provided with driven disc (7), the card of described driven disc (7) is provided with first groove (22), the internal face of described first groove (22) is provided with boss (8), and described centrifugal sliding pin device Spielpassung is in described first groove (22).

2. according to the described full-automatic bidirectional clutch of claim 1, it is characterized in that: described centrifugal sliding pin device comprises that the quadrature setting is fixedly connected on the guide pillar (9) of described driving shaft (5) axle head, be with first driving pin (11) and first spring (10) on the described guide pillar (9) successively, the outer end of described first spring (10) is located by first back-up ring (14).

3. according to the described full-automatic bidirectional clutch of claim 2, it is characterized in that: the outer end of described first driving pin (11) is provided with second groove (23), and described first spring (10) and described first back-up ring (14) Spielpassung are in this second groove (23).

4. according to claim 2 or 3 described full-automatic bidirectional clutch, it is characterized in that: the axle head of described driving shaft (5) is provided with pin-and-hole (24), and described guide pillar (9) is through in this pin-and-hole (24), and locatees with second back-up ring (13).

5. according to the described full-automatic bidirectional clutch of claim 1, it is characterized in that: described centrifugal sliding pin device comprises that the quadrature setting is fixedly connected on the sliding pipe (19) of described driving shaft (5) axle head, the middle part of described sliding pipe (19) is provided with first bearing pin (20), be fixedly connected with second spring (18) on described first bearing pin (20), be fixedly connected with second driving pin (17) on the other end of described second spring (18), described second driving pin (17) Spielpassung is in described sliding pipe (19).

6. according to the described full-automatic bidirectional clutch of claim 5, it is characterized in that: be fixedly connected with described second driving pin (17) by second bearing pin (21) on the other end of described second spring (18).

7. according to the described full-automatic bidirectional clutch of claim 1, it is characterized in that: described driving shaft (5) is fixed on the described front cover (1) by bearing (2), and, be provided with pad (3) between described the 3rd back-up ring (4) and the described bearing (2) with the 3rd back-up ring (4) axially locating.

8. according to the described full-automatic bidirectional clutch of claim 1, it is characterized in that: described driven shaft (12) is fixed on the described rear end cover (6) by bearing (2), and, be provided with pad (3) between described the 3rd back-up ring (4) and the described bearing (2) with the 3rd back-up ring (4) axially locating.