CN102121504A

CN102121504A - Torque transmission mechanism

Info

Publication number: CN102121504A
Application number: CN2011100732097A
Authority: CN
Inventors: 刘庆龙; 刘德发
Original assignee: KUNSHAN LEMTECH PRECISION MACHINERY CO Ltd
Current assignee: Langtech (China) precision materials Limited by Share Ltd
Priority date: 2011-03-25
Filing date: 2011-03-25
Publication date: 2011-07-13
Anticipated expiration: 2031-03-25
Also published as: CN102121504B

Abstract

The invention discloses a torque transmission mechanism which comprises a transmission piece. The mechanism is characterized by also comprising an axis piece and a hollow elastic spring plate clamping sleeve; the axis piece comprises an axis piece body and a core part which is formed at the axis piece body and protrudes outward; the core part is sleeved with the spring plate clamping sleeve in the way of interference fit; and moreover, a sleeve part is also sleeved on the core part and the outer side of the spring plate clamping sleeve; torque is transmitted by arranged transmission keys and key grooves; the whole torque mechanism can be prevented from loosening through the match of grooves and protrusions; and the torque transmitted by the whole torque transmission mechanism can be fine adjusted through certain deformation occurred between the core part and the spring plate clamping sleeve.

Description

Torque drive mechanism

Technical field

The present invention relates to a kind of drive mechanism, be specifically related to a kind of adjustment moment of torsion and having that can be suitable and prevent the torque drive mechanism that gets loose.

Background technique

The structural member of existing driving torque, its structure and size are certain, so can transmission moment of torsion also be certain, can not in the process of assembling, regulate by enough suitable moments of torsion institute's energy transmission, this just causes very big puzzlement to use; Make torque drive mechanism can not be applicable to applied transmission environment, cause the driving mechanism life-span to shorten or impaired inefficacy.Now still there is not a kind of torque drive mechanism that can effectively adjust moment of torsion.

Summary of the invention

For solving the deficiency that prior art exists, the object of the present invention is to provide a kind of torque drive mechanism that can effectively adjust moment of torsion.

To achieve these goals, the present invention adopts following technological scheme:

Torque drive mechanism, comprise driving component, it is characterized in that, the rubber-like shell fragment cutting ferrule that also comprises axle center part and hollow, above-mentioned axle center part comprises axle center part body and is formed at the core of the outside protrusion of axle center part body, the root of above-mentioned core is provided with the locking groove around whole core, the end of above-mentioned core has the yi word pattern opening slot, above-mentioned shell fragment cutting ferrule is socketed in the core outside of above-mentioned axle center part, the inwall of above-mentioned shell fragment cutting ferrule and the outer wall of above-mentioned core are fitted mutually, and having more than one surface of contact is contact plane, the outer wall of above-mentioned shell fragment cutting ferrule also is provided with more than one driving key, above-mentioned driving component is divided into the sleeve part that is used to connect the joint of external structure and is used to hold above-mentioned core and shell fragment cutting ferrule, this sleeve part is socketed in the outside of the integral body of above-mentioned core and shell fragment cutting ferrule composition, the corresponding keyway that matches that is provided with in position of the corresponding above-mentioned driving key of above-mentioned sleeve part, the position of the corresponding above-mentioned locking groove of above-mentioned sleeve part is provided with the lock projection with above-mentioned locking groove fit.

Aforesaid torque drive mechanism is characterized in that above-mentioned yi word pattern opening slot is divided into the end of above-mentioned core the part of two symmetries.

Aforesaid torque drive mechanism is characterized in that above-mentioned core also is provided with the stop surface around whole core that is used to limit above-mentioned shell fragment cutting ferrule position, is formed with the transition inclined-plane between this stop surface and the above-mentioned locking groove.

Aforesaid torque drive mechanism is characterized in that having the contact plane that is parallel to each other of two symmetries between the inwall of the outer wall of above-mentioned core and above-mentioned shell fragment cutting ferrule.

Aforesaid torque drive mechanism is characterized in that, above-mentioned axle center part body is provided with internal thread and the through hole that connects external structure.

Aforesaid torque drive mechanism is characterized in that above-mentioned joint is provided with the mounting hole that is used to connect external structure.

Usefulness of the present invention is:

Utilize elastic ferrule and axle center part socket,, when assembling, can regulate the moment of torsion of transmission between them, be connected with driving component again, realize the transmission of moment of torsion by regulating the tightness that connects between them because the shell fragment cutting ferrule has elasticity; In addition, groove and projection cooperation can be good at realizing anti-loose purpose.

Description of drawings

Fig. 1 is the perspective view of torque drive of the present invention mechanism;

Fig. 2 is the sectional structure schematic representation of torque drive of the present invention mechanism;

Fig. 3 is the decomposing schematic representation of the sectional structure of torque drive of the present invention mechanism;

Fig. 4 is the cross section structure schematic representation (clear in order to identify, part-structure is for indicating hatching) at A-A place among Fig. 2;

Fig. 5 is the cross section structure schematic representation of the core end of torque drive of the present invention mechanism;

Fig. 6 is the cross section structure schematic representation of core end among another embodiment of torque drive of the present invention mechanism;

The implication of reference character among the figure:

1, driving component, 2, the axle center part, 3, the shell fragment cutting ferrule, 4, core, 5, the locking groove, 6, the yi word pattern opening slot, 7, driving key, 8, joint, 9, sleeve part, 10, keyway, 11, lock projection, 12, stop surface, 13, contact plane, 14, internal thread, 15, mounting hole, 16, axle center part body, 17, through hole.

Embodiment

Below in conjunction with Figure of description technological scheme of the present invention is described in detail.

Fig. 1 is the perspective view of torque drive of the present invention mechanism; Fig. 2 is the sectional structure schematic representation of torque drive of the present invention mechanism; Fig. 3 is the decomposing schematic representation of the sectional structure of torque drive of the present invention mechanism; Fig. 4 is the cross section structure schematic representation at A among Fig. 2-A place; Fig. 5 is the cross section structure schematic representation of the core end of torque drive of the present invention mechanism; Fig. 6 is the cross section structure schematic representation of core end among another embodiment of torque drive of the present invention mechanism.

With reference to Fig. 1, Fig. 2, torque drive of the present invention mechanism mainly comprises: driving component 1, axle center part 2, shell fragment cutting ferrule 3.

As shown in Figure 1, axle center part 2 is divided into axle center part body 16 and can produces the core 4 of some plastic deformations, and wherein as a kind of preferred version, axle center part body 16 adopts columniform profile; Core 4 is formed at axle center part body 16, and outwards protrude, be provided with locking groove 5 at the root of core 4 around whole core 4, the end of core 4 has yi word pattern opening slot 6, and as shown in Fig. 1 and Fig. 2, this yi word pattern opening slot 6 is not opened very deeply, do not run through whole core 4, as a kind of preferred version, as Fig. 4, shown in Figure 5, this yi word pattern opening slot 6 is divided into the end of core 4 part of two symmetries.

As shown in Figure 1, the inner hollow of shell fragment cutting ferrule 3 and have elasticity, the outer wall of shell fragment cutting ferrule 3 is provided with driving key 7, as a kind of preferred version, as shown in Fig. 1, Fig. 2 and Fig. 3, the number of driving key 7 is 1, the inner wall shape of its hollow is consistent with the outer wall shape of core 4 in addition, and shell fragment cutting ferrule 3 is socketed on the core 4, and core 4 is by interference fit chucking shell fragment cutting ferrule 3, the outer wall of core 4 and the inwall of shell fragment cutting ferrule 3 are close to, are formed the integral body that to rotate together.The moment of torsion that can transmit between them can be adjusted by the tightness of adjusting between core 4 and the shell fragment cutting ferrule 3, and the moment of torsion that needs when moment of torsion hour suitably strikes tight shell fragment cutting ferrule 3 and reached the purpose that increases institute's energy transmitting torque; When moment of torsion is big than the moment of torsion that needs, suitably loosen shell fragment cutting ferrule 3 reached reduce can transmitting torque purpose, because final axle center part 2 is sent to driving component 1 by shell fragment cutting ferrule 3 with moment of torsion, can regulate the moment of torsion that the integral body of whole torque drive of the present invention mechanism can be transmitted so regulate the degree of tightness of shell fragment cutting ferrule 3 and core 4.

Preferred version as core 4 end cross-sectional shapes, as Fig. 1, Fig. 4, shown in Figure 5, core 4 has the contact plane 13 of two symmetries in this scheme, the moment of torsion of transmission preferably, shown in Figure 6 is the another kind of preferred version of core 4 end cross-sectional shapes, and this scheme can provide bigger contact plane 13.

As a kind of preferred version, with reference to Fig. 1, Fig. 2 and shown in Figure 3, though core 4 and shell fragment cutting ferrule 3 link together by interference fit, but in order to guarantee shell fragment cutting ferrule 3 in axial direction upper put fixing on core 4, near the root of core, be provided with stop surface 12 around core 4, can make the end of shell fragment cutting ferrule 3 be stuck in stop surface 12 places, thereby it is not slided in the axial direction; In addition, for the lock projection 11 that makes sleeve part 9 can conveniently be mounted in the locking groove 5 of core 4, sleeve part 9 should possess the ability of certain plastic deformation, the physical dimension of stop surface 12 should not hinder the lock projection 11 of sleeve part 9 to embed locking groove 5 simultaneously, in addition, in order to reach the purpose that lock projection 11 embeds locking groove 5, be formed with the transition inclined-plane between stop surface 12 and the locking groove 5, make sleeve part 9 when being socketed in core 4 outsides, lock projection 11 can be opened gradually by contacting this transition inclined-plane, up to tightening locking groove 5, such benefit is that sleeve part 9 convenient being unlikely to when assembling damaged; As a kind of preferred version, the outer rim of stop surface 12 is circular as shown in Figure 1, locking groove 5 is made up of one section circular flat cylindrical and that the cylindrical top of this section forms that top end face, core 4 roots of axle center part body 16 form, see figures.1.and.2, as a kind of preferred version, by wherein one section connection of conical surface, between the end that forms the cylindrical and core 4 of locking groove 5, form a circular cone between the circular flat of formation locking groove 5 and the circular stop surface 12.

With reference to Fig. 1, Fig. 2, Fig. 3, driving component 1 is divided into and is used to connect the joint 8 of external structure and is used to hold core 4 and the sleeve part 9 of the integral body that shell fragment cutting ferrule 3 is formed, sleeve part 9 is provided with the lock projection 11 of corresponding size in the position of correspondence locking groove 5, sleeve part 9 also is provided with the keyway 10 corresponding with driving key 7, as preferably, this keyway 10 can be as Fig. 1, shown in Fig. 2 at the outer wall that runs through sleeve part 9 in the radial direction of sleeve part 9, and install for convenience, this keyway 10 extends to the edge of the sleeve part 9 adjacent with axle center part body 16 always on the axial direction of sleeve part 9, the number of keyway 10 is corresponding with the number of driving key 7.When the lock projection 11 of sleeve part 9 tightened the locking groove 5 of cores 4, driving key 7 cooperates with keyway 10 can transmitting torque.As a kind of preferred version, as shown in Fig. 1, Fig. 2, Fig. 3, lock projection 11 is arranged on the nozzle of sleeve part 9.In addition, joint 8 is provided with mounting hole 15, as preferably, as shown in Figure 1, is the plate structure of rectangle with joint 8, has mounting hole 15 above.

As a kind of preferred version, above-mentioned axle center part body 16 is provided with the internal thread 14 that connects external structure; Can also on axle center part body 16, have the through hole 17 that connects from radially.

With reference to Fig. 2, Fig. 4, core 4 is by interference fit and 3 sockets of shell fragment cutting ferrule, simultaneously sleeve part 9 is socketed in the outside of core 4 and shell fragment cutting ferrule 3 again, and comes driving torque by driving key 7 and keyway 10, is connected whole torque drive mechanism with lock projection 11 by locking groove 5 and prevents to get loose.

The foregoing description does not limit the present invention in any form, and all employings are equal to the technological scheme that mode obtained of replacement or equivalent transformation, all drop in protection scope of the present invention.

Claims

1. torque drive mechanism, comprise the driving component driving component, it is characterized in that, the rubber-like shell fragment cutting ferrule that also comprises axle center part and hollow, above-mentioned axle center part comprises axle center part body and is formed at the core of the outside protrusion of axle center part body, the root of above-mentioned core is provided with the locking groove around whole core, the end of above-mentioned core has the yi word pattern opening slot, above-mentioned shell fragment cutting ferrule is socketed in the core outside of above-mentioned axle center part, the outer wall of above-mentioned shell fragment cutting ferrule also is provided with more than one driving key, above-mentioned driving component is divided into the sleeve part that is used to connect the joint of external structure and is used to hold above-mentioned core and shell fragment cutting ferrule, this sleeve part is socketed in the outside of the integral body of above-mentioned core and shell fragment cutting ferrule composition, the corresponding keyway that matches that is provided with in position of the corresponding above-mentioned driving key of above-mentioned sleeve part, the position of the corresponding above-mentioned locking groove of above-mentioned sleeve part is provided with the lock projection with above-mentioned locking groove fit.

2. torque drive according to claim 1 mechanism is characterized in that above-mentioned yi word pattern opening slot is divided into the end of above-mentioned core the part of two symmetries.

3. torque drive according to claim 2 mechanism is characterized in that above-mentioned core also is provided with the stop surface around whole core that is used to limit above-mentioned shell fragment cutting ferrule position, is formed with the transition inclined-plane between this stop surface and the above-mentioned locking groove.

4. torque drive according to claim 3 mechanism, it is characterized in that, the inwall of above-mentioned shell fragment cutting ferrule and the outer wall of above-mentioned core are fitted mutually, and having more than one surface of contact is contact plane, has the contact plane that is parallel to each other of two symmetries between the inwall of the outer wall of above-mentioned core and above-mentioned shell fragment cutting ferrule.

5. torque drive according to claim 4 mechanism is characterized in that, above-mentioned axle center part body is provided with internal thread and the through hole that connects external structure.

6. torque drive according to claim 5 mechanism is characterized in that above-mentioned joint is provided with the mounting hole that is used to connect external structure.