CN211314880U

CN211314880U - Synchronous belt wheel with locking device

Info

Publication number: CN211314880U
Application number: CN201921875128.7U
Authority: CN
Inventors: 王峰; 王殿凯; 谢志星
Original assignee: Changzhou Jintan Jiuchun Hardware Rubber Plastic Products Co ltd
Current assignee: Changzhou Jintan Jiuchun Hardware Rubber Plastic Products Co ltd
Priority date: 2019-11-02
Filing date: 2019-11-02
Publication date: 2020-08-21
Anticipated expiration: 2029-11-02

Abstract

The utility model discloses a synchronous pulley with a locking device, which relates to the field of belt transmission and comprises a pulley body and gear teeth, wherein the pulley body is provided with the locking device; locking device is including setting up first clamp plate and the second clamp plate in band pulley body both sides relatively, first clamp plate and second clamp plate all are located the band pulley body, first clamp plate and band pulley body integrated into one piece, all set up the first transmission hole that supplies the transmission shaft to pass on first clamp plate and the second clamp plate, the inclined groove has evenly been seted up along the circumference of the two on the side that first clamp plate is relative with the second clamp plate relatively, the bottom surface of inclined groove is the inclined plane, be equipped with in the centre bore and insert the arc of locating in the inclined groove, the arc is located between first clamp plate and the second clamp plate and respectively with two inclined groove butt, the one end that the arc was kept away from to the inclined groove inclines towards the axis of band pulley body, be equipped with the retaining member in the band pulley body, first clamp plate and second clamp plate are through locking. The utility model discloses simple to operate and labour saving and time saving's effect has.

Description

Synchronous belt wheel with locking device

Technical Field

The utility model belongs to the technical field of belt drive's technique and specifically relates to a synchronous pulley from area locking device is related to.

Background

The synchronous belt wheel transmission consists of a closed annular rubber belt with equidistant teeth on the inner peripheral surface and a corresponding belt wheel. During movement, the teeth are meshed with the tooth grooves of the belt wheel to transmit movement and power, and the belt wheel is meshed for transmission, so that the belt wheel has various characteristics of gear transmission, chain transmission and flat belt transmission. The laser engraving machine is widely applied to the fields of automobiles, textile, printing and packaging equipment, sewing equipment, office equipment, laser engraving equipment, tobacco, financial machines and tools, stage lighting, communication food machinery, medical machinery, steel machinery, petrochemical industry, instruments and meters, various precision machine tools and the like. The synchronous belt wheel is generally arranged on the transmission shaft through key connection, and the gear teeth of the synchronous belt wheel are matched with the annular rubber belt, so that transmission is realized.

Chinese utility model patent with publication number CN201672033U discloses a synchronous pulley, including the pulley body, open at the pulley body center has the centre bore, and it has the open bar groove of axial to open on the inner wall of centre bore, is equipped with the teeth of a cogwheel with the same tooth pitch of annular sticky tape on the annular outer wall of pulley body, and the bar groove is used for cooperating with the epaxial key of transmission, realizes the transmission.

The adoption of the scheme has the following defects: when synchronous pulley installs on the transmission shaft, need lock synchronous pulley on the transmission shaft through external device, it is comparatively troublesome to install, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a from synchronous pulley of taking locking device has simple to operate and labour saving and time saving's effect.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a synchronous pulley with a locking device comprises a pulley body and gear teeth, wherein the pulley body is provided with the locking device;

the locking device comprises a first pressing plate and a second pressing plate which are oppositely arranged on two sides of a belt wheel body, the first pressing plate and the second pressing plate are both located in the belt wheel body, the first pressing plate and the belt wheel body are integrally formed, first transmission holes for a transmission shaft to penetrate through are formed in the first pressing plate and the second pressing plate, inclined grooves are formed in the side face, opposite to the second pressing plate, of the first pressing plate and the second pressing plate along the circumferential direction of the first pressing plate, the bottom face of each inclined groove is an inclined plane, an arc-shaped plate inserted into the inclined grooves is arranged in the central hole, the arc-shaped plate is located between the first pressing plate and the second pressing plate and is abutted against the inclined grooves, one end, far away from the arc-shaped plate, of each inclined groove inclines towards the axis of the belt wheel body, locking pieces are arranged in the belt wheel body, and the first pressing.

Through adopting above-mentioned technical scheme, first clamp plate and second clamp plate are close to each other and press from both sides tightly, utilize the inclined plane of inclined groove to extrude the arc, force the arc of relative setting to compress tightly the transmission shaft, and then realize synchronous pulley's locking, because of locking device all is synchronous pulley self carries, overlap synchronous pulley on the transmission shaft, locking can be accomplished to the rethread retaining member, need not to install other parts, so install comparatively convenient and labour saving and time saving, practiced thrift installation cost.

The utility model discloses further set up to: the arc-shaped plate is provided with an inclined plane at the joint with the inclined groove, and the inclined plane is in butt joint with the inclined groove and is matched with the inclined groove.

Through adopting above-mentioned technical scheme, the arc is equipped with the inclined plane with the butt department of inclined groove, the mutual slip between the inclined plane of inclined groove and the inclined plane, and its transmission efficiency is higher, and compares in arc and inclined groove butt department and be the right angle, is difficult for causing the damage to the bottom surface of inclined groove.

The utility model discloses further set up to: the inclined plane is provided with a convex block, and the inclined groove is provided with a groove for the convex block to slide.

Through adopting above-mentioned technical scheme, the lug is placed in the recess, and the recess is close to the one end of band pulley axis and supports the lug, and the inclined groove can't be thrown off to the arc, need not the manual work during the installation promptly and restricts the arc, easy to assemble labour saving and time saving.

The utility model discloses further set up to: the side of the second pressing plate is provided with sliding blocks along the circumferential direction of the second pressing plate, and the inner wall of the pulley body is provided with a sliding groove for the sliding blocks to slide.

By adopting the technical scheme, the convex block on the second pressing plate is inserted along the sliding groove, the arc-shaped plate can be aligned to the inclined groove, manual alignment of the arc-shaped plate is not needed, the installation cost during assembly is reduced, and time and labor are saved; and the spout also can carry on spacingly to the second clamp plate, makes its unable circumferential direction, reduces the torque that synchronous pulley produced when following the transmission shaft and rotate first clamp plate, and then promotes synchronous pulley transmission's stability.

The utility model discloses further set up to: offer the second transmission hole that supplies the transmission shaft to pass on the retaining member, the retaining member is located the pulley body and with pulley body threaded connection, the one end and the second clamp plate butt of retaining member and the other end extend out the pulley body.

Through adopting above-mentioned technical scheme, the retaining member locks first clamp plate and second clamp plate through threaded connection, and is simple and convenient, and is firm reliable.

The utility model discloses further set up to: the locking member extends out the one end of pulley body and is equipped with first locking head, first locking head cross sectional shape is the hexagon.

Through adopting above-mentioned technical scheme, the first locking head of hexagon makes things convenient for the workman to use the spanner to understand the retaining member, and then realizes synchronous pulley's locking.

The utility model discloses further set up to: the locking device is fixedly connected to one side of the belt pulley body and comprises a locking ring and a locking screw, the locking ring is fixedly connected to one side of the belt pulley body, a locking groove is formed in the locking ring along the axial direction of the locking ring, a threaded hole is formed in the side surface of the locking ring and is perpendicular to the locking groove, and the locking screw is in threaded connection with the locking groove.

By adopting the technical scheme, locking and fixing of the synchronous belt wheel can be realized by screwing the locking screw, and the locking device is simple and convenient and has high locking strength.

The utility model discloses further set up to: and locking devices are arranged on two sides of the pulley body.

Through adopting above-mentioned technical scheme, both ends are locked simultaneously, and locking strength is higher, and is more steady when simultaneously can making synchronous pulley rotate.

To sum up, the utility model discloses a beneficial technological effect does:

1. through the arrangement of the first pressing plate, the second pressing plate, the arc-shaped plate and the locking part, the locking and fixing of the synchronous belt wheel can be realized by pulling the locking part, the locking strength is high, and the installation is simple, convenient, time-saving and labor-saving;

2. through the setting of locking ring and locking screw, twist soon locking screw can realize fixing the locking of hold-in range deer your, simple to operate is simple and labour saving and time saving, and the locking ring is the symmetry and sets up, and synchronous pulley's transmission is more steady.

Drawings

FIG. 1 is a schematic structural view for embodying the entirety in embodiment 1;

fig. 2 is an exploded view of a coupling structure for embodying the locking means in the present embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of the first presser plate according to the present embodiment;

fig. 5 is a schematic structural view for embodying the whole in embodiment 2.

In the figure, 1, a pulley body; 11. a chute; 12. a second locking head; 13. a strip-shaped groove; 2. gear teeth; 3. a locking device; 31. a first platen; 311. an inclined groove; 3111. a groove; 312. a slider; 313. a first transmission hole; 32. a second platen; 33. an arc-shaped plate; 331. an inclined surface; 3311. a bump; 34. a locking member; 341. a first locking head; 342. a second drive aperture; 35. locking a ring; 351. a locking groove; 36. locking the screw; 4. a drive shaft; 41. a key.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 and 2, for the self-locking synchronous pulley of the present invention, the self-locking synchronous pulley includes a pulley body 1 and a gear tooth 2, wherein the gear tooth 2 is disposed on an annular outer wall of the pulley body 1, and is used for cooperating with an annular adhesive tape (not shown in the figure) to realize transmission; the pulley body 1 is fixed on the transmission shaft 4 through the locking device 3, the locking device 3 comprises a first pressing plate 31, a second pressing plate 32 and an arc-shaped plate 33, and the first pressing plate 31 (shown in fig. 4), the arc-shaped plate 33, the second pressing plate 32 and a locking piece 34 are sequentially arranged in the pulley body 1.

As shown in fig. 2 and 3, the first pressing plate 31 and the second pressing plate 32 are oppositely disposed on two sides of the pulley body 1, the first pressing plate 31 and the pulley body 1 are integrally formed, an inclined groove 311 for placing the arc plate 33 is disposed on a side surface of the first pressing plate 31 opposite to the second pressing plate 32, the inclined groove 311 is uniformly and oppositely disposed along a circumferential direction of the first pressing plate 31, a bottom surface of the inclined groove 311 is an inclined surface, the inclined surface abuts against the arc plate 33, an inclined surface 331 is disposed at a position where the arc plate 33 abuts against the inclined groove 311, the inclined surface 331 is adapted to the bottom surface of the inclined groove 311, an inclination angle of the inclined surface 311 is consistent with that of the inclined groove 311, one end of the inclined groove 311 away from the arc plate 33 inclines toward an axis of the pulley body 1, and when, the bottom surface of the inclined groove 311 extrudes the inclined surface 331, the arc-shaped plate 33 is attached to the transmission shaft 4, and the transmission shaft is locked by the arc-shaped plate 33 which is arranged oppositely; the inclined surface 331 is provided with a bump 3311, the bottom surface of the inclined groove 311 is provided with a groove 3111 for the bump 3311 to slide, one end of the groove 3111 close to the axis of the pulley body 1 is provided with a non-through groove, when the arc plate 33 slides along the inclined groove 311 towards the axis of the pulley body 1, the bump 3311 also slides in the groove 3111, when the end of the groove 3111 close to the axis of the pulley body 1 is reached, the bump 3311 abuts against the side surface of the groove 3111, and the bump can not fall down, when the synchronous pulley is not mounted on the transmission shaft 4, the possibility that the arc plate 33 falls out of the pulley body 1 can be reduced.

As shown in fig. 2, the outer side surface of the second pressing plate 32 is provided with a sliding block 312 along the circumferential direction, the inner wall of the pulley body 1 is provided with a sliding groove 11 (as shown in fig. 1) for sliding the sliding block 312, and the sliding block 312 is connected with the sliding groove 11 in a sliding manner, so that the second pressing plate 32 cannot rotate in the circumferential direction, the torque generated during rotation is reduced, and the influence on the arc-shaped plate 33 is reduced; the sliding groove 11 can play a role in positioning, the position of the sliding groove 11 and the inclined groove 311 is limited, when the second pressing plate 32 slides in along the sliding groove 11, the inclined groove 311 is just aligned to the arc-shaped plate 33, and the assembly is convenient; first pressure plate 31 and second pressure plate 32 are all seted up and are supplied transmission shaft 4 to spread into first transmission hole 313, and the transmission shaft 4 of being convenient for penetrates, because be the arc 33 and the contact of transmission shaft 4, so can penetrate the transmission shaft 4 of different diameters in the certain limit, realize a round multi-purpose, improved synchronous pulley's application range.

As shown in fig. 2, the locking member 34 is located in the pulley body 1 and is in threaded connection with the pulley body 1, one end of the locking member 34 abuts against the second pressing plate 32, the other end of the locking member extends out of the pulley body 1 and is connected with a first locking head 341, the first locking head 341 is hexagonal, a worker uses a wrench to pull the first locking head 341, the locking member 34 extrudes the second pressing plate 32 through threaded connection, the second pressing plate 32 is forced to approach and press towards the first pressing plate 31, and then the arc-shaped plate 33 locks the transmission shaft 4 along the inclined groove 311, so as to complete locking and fixing of the synchronous pulley; for making things convenient for the workman to pull the retaining member, so have second retaining member 12 in one side integrated into one piece that the retaining member was kept away from to the band pulley body, the workman restricts second retaining member 12 in the spanner when the installation, and first retaining member 11 is pulled to another spanner, can accomplish the locking.

The implementation process of the embodiment is as follows: put into the inclined groove 311 of first clamp plate 31 respectively with two arcs 33, lug 3311 is placed in recess 3111, then with second clamp plate 32 along spout 11 slide in, make it and arc 33 butt, again with retaining member 34 screw in pulley body 1, then with pulley body 1 cover on transmission shaft 4, pull first locking head 341 with the spanner, lock synchronous pulley on transmission shaft 4, accomplish synchronous pulley's fixed.

Example 2:

as shown in fig. 5, for the synchronous pulley with locking device disclosed in the present invention, the difference from embodiment 1 lies in that the structure of the locking device 3 is changed, the locking device 3 is relatively disposed on two sides of the pulley body 1, and includes a locking ring 35 and a locking screw 36, the locking ring 35 is fixedly connected to the pulley body 1 through a bolt, the locking ring 35 has a locking groove 351 along the axial direction thereof, the locking ring 35 has a locking screw 36 perpendicular to the locking groove 351, the locking screw 36 is in threaded connection with the locking ring 35, the synchronous pulley is sleeved on the transmission shaft 4, the locking screw 36 is screwed, the width of the locking groove 351 is reduced, and further locking is achieved; when the transmission capacity between the transmission shaft 4 and the synchronous pulley needs to be improved, the pulley body 1 and the locking ring 35 can be provided with strip-shaped grooves 13 along the axial direction, and the strip-shaped grooves 13 form key connection with the keys 41 on the transmission shaft 4; meanwhile, the synchronous belt pulley can also be directly fixed on the optical axis and is not limited by key connection, so that the synchronous belt pulley is convenient to mount.

The implementation process of the embodiment is as follows: the locking ring 35 is fixedly connected to the pulley body 1 through a bolt, a part of the locking screw 36 is screwed into the locking ring 35 without passing through the locking groove 351, then the pulley body 1 is sleeved on the transmission shaft 4, the locking screw 36 is screwed, the width of the locking groove 351 is reduced, the synchronous pulley is locked on the transmission shaft 4, and the fixation of the synchronous pulley is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a from synchronous pulley of taking locking device, includes pulley body (1) and teeth of a cogwheel (2), the center department of pulley body (1) has seted up centre bore, its characterized in that: the pulley body (1) is provided with a locking device (3);

the locking device (3) comprises a first pressing plate (31) and a second pressing plate (32) which are oppositely arranged on two sides of the pulley body (1), the first pressing plate (31) and the second pressing plate (32) are both positioned in the pulley body (1), the first pressing plate (31) and the pulley body (1) are integrally formed, first transmission holes (313) for transmission shafts to pass through are formed in the first pressing plate (31) and the second pressing plate (32), inclined grooves (311) are uniformly formed in the opposite side surfaces of the first pressing plate (31) and the second pressing plate (32) along the circumferential directions of the first pressing plate and the second pressing plate, the bottom surfaces of the inclined grooves (311) are inclined surfaces, an arc-shaped plate (33) inserted into the inclined grooves (311) is arranged in the central hole, the arc-shaped plate (33) is positioned between the first pressing plate (31) and the second pressing plate (32) and is respectively abutted against the two inclined grooves (311), one end, far away from the arc-shaped plate (33), of the inclined grooves (311) is inclined towards the axis of the pulley body (1), be equipped with retaining member (34) in pulley body (1), first clamp plate (31) and second clamp plate (32) are through retaining member (34) locking.

2. A self-locking synchronous pulley according to claim 1, wherein: the abutting part of the arc-shaped plate (33) and the inclined groove (311) is provided with an inclined surface (331), and the inclined surface (331) is abutted to the inclined groove (311) and is matched with the inclined groove (311).

3. A self-locking synchronous pulley according to claim 2, wherein: the inclined surface (331) is provided with a convex block (3311), and the inclined groove (311) is provided with a groove (3111) for the convex block (3311) to slide.

4. A self-locking synchronous pulley according to claim 3, wherein: the side surface of the second pressing plate (32) is oppositely provided with a sliding block (312) along the circumferential direction of the second pressing plate, and the inner wall of the pulley body (1) is provided with a sliding groove (11) for the sliding block (312) to slide.

5. A self-locking synchronous pulley according to claim 4, characterized in that: offer second transmission hole (342) that supply the transmission shaft to pass on retaining member (34), retaining member (34) are located pulley body (1) and with pulley body (1) threaded connection, the one end and the second clamp plate (32) butt of retaining member (34) and the other end extend out pulley body (1).

6. A self-locking synchronous pulley according to claim 5, wherein: one end of the locking piece (34) extending out of the pulley body (1) is provided with a first locking head (341), and the cross section of the first locking head (341) is hexagonal.

7. A self-locking synchronous pulley according to claim 1, wherein: the locking device (3) is fixedly connected to one side of the pulley body (1), the locking device (3) comprises a locking ring (35) and a locking screw (36), the locking ring (35) is fixedly connected to one side of the pulley body (1), a locking groove (351) is formed in the locking ring (35) along the axial direction of the locking ring, a threaded hole is further formed in the side face of the locking ring (35), the threaded hole is perpendicular to the locking groove (351), and the locking screw (36) is in threaded connection with the locking groove (351).

8. A self-locking synchronous pulley according to claim 7, wherein: and locking devices (3) are arranged on two sides of the pulley body (1).