CN210192579U

CN210192579U - Chain tensioning device

Info

Publication number: CN210192579U
Application number: CN201920568177.XU
Authority: CN
Inventors: Ajie Liu; 刘阿杰
Original assignee: NINGBO HAIYUE ELECTRICAL APPLIANCE MANUFACTURING Co Ltd
Current assignee: NINGBO HAIYUE ELECTRICAL APPLIANCE MANUFACTURING Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-03-27
Anticipated expiration: 2029-04-24

Abstract

The utility model provides a chain tensioning device, which comprises a thrust shaft, wherein the thrust shaft is sequentially provided with a clamping part for clamping a driven transmission shaft in a matching manner and an adjusting device for adjusting the position of the thrust shaft; the utility model discloses a spring part receives the restoring force promotion of compression production the removal of thrust shaft drives driven transmission shaft's removal, and it is taut to carry the chain, realizes carrying the fastening tensioning of chain. The utility model discloses simple structure, convenient to use can realize the tensioning of carrying the chain, also has the dismantlement maintenance and the tensioning once more of the transport chain of being convenient for simultaneously.

Description

Chain tensioning device

Technical Field

The utility model belongs to the technical field of machinery, it is concrete, relate to a overspeed device tensioner, especially a chain overspeed device tensioner.

Background

At present, the application of the conveying chain in various enterprises is wider and wider, and particularly, products which need curing and aging according to certain process requirements, such as transformers, surface-painted and plastic-sprayed workpieces, heat-shrinkable heat sleeves and the like, are required. However, the conveying chain is worn due to the conditions of high temperature, operation load action and the like in the long-term use process, the chain pitch is gradually increased due to the wear, the chain is gradually extended, although lubricating oil can be added in time to reduce the wear in the use process, the wear can be only properly reduced, the problem that the chain is extended cannot be completely solved, maintenance personnel are required to adjust the tension degree of the conveying chain, the maintenance workload and time are increased, and even the hidden trouble that the driving chain wheel is blocked and cannot operate is possibly caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a chain tensioning device is provided, the utility model discloses a chain tensioning device can be with the taut fastening of transport chain.

The technical scheme adopted by the utility model for solving the technical problems is a chain tensioning device for adjusting the movement of a driven transmission shaft, which comprises a thrust shaft, wherein the thrust shaft is sequentially provided with a clamping part for clamping the driven transmission shaft in a matching manner and an adjusting device for adjusting the position of the thrust shaft;

the thrust shaft comprises a first section part and a second section part which are sequentially arranged;

the diameter of the first section part is smaller than that of the second section part, and a first fixing piece is arranged at one end of the first section part; the clamping part is formed between the first section part and the first fixing part.

By adopting the scheme, when the chain tensioning device is used, the thrust shaft is pushed to move towards the same side through the adjustment of the adjusting device, the driven transmission shaft is further driven to move towards the same side, the center distance between the driving chain wheel and the driven chain wheel is enlarged, and therefore the conveying chain is tensioned.

Preferably, the adjusting device comprises a fixing plate, a spring element, a spring sleeve and a driving device; the fixed plate is fixedly connected with the second section part, and the spring piece is arranged along the axial direction of the second section part; the fixing plate and the spring part are arranged in the spring sleeve;

the lower end of the spring sleeve is provided with an installation plate, and the spring sleeve and the installation plate are fixed through an auxiliary fixing plate;

one end of the mounting plate is provided with a driving device capable of adjusting the position of the mounting plate.

Adopt above-mentioned scheme, through drive arrangement promotes the mounting panel to the drive is fixed the telescopic removal of spring on the mounting panel, and then pass through the fixed plate makes the spring part produces compression deformation and produces the restoring force, the spring part can drive when producing the restoring force the thrust shaft moves toward one side, further drive driven transmission shaft moves toward same side, draws the centre-to-centre spacing of big drive sprocket, driven sprocket, thereby taut conveyor chain.

Preferably, the driving means includes an auxiliary tension bolt, and an auxiliary mounting plate and a nut fixing the auxiliary tension bolt.

Preferably, the auxiliary mounting plate includes a second bottom plate and a second side plate, and the second bottom plate and the second side plate form an L shape.

Preferably, the auxiliary tension bolt is fixedly connected with the second side plate through the nut.

By adopting the scheme, the distance adjusting effect can be realized by screwing and unscrewing the auxiliary tensioning bolt, and moreover, the driving device can be unscrewed through the auxiliary tensioning bolt to integrally disassemble and assemble the driving device, so that the maintenance and the adjustment are convenient.

Preferably, a second fixing piece is arranged at one end, far away from the fixing plate, of the second section.

By adopting the scheme, the spring sleeve can be conveniently disassembled and assembled from the thrust shaft by the aid of the second fixing piece, and the spring sleeve can be guaranteed to be separated from the thrust shaft.

Preferably, the spring sleeve includes a front cover, a rear cover and a sleeve.

Preferably, the front sealing cover is fixedly connected with the sleeve, and the rear sealing cover is fixedly connected with the sleeve.

By adopting the scheme, the spring sleeve is simple to disassemble and assemble, and can also protect the spring part, so that the problems of corrosion and the like caused by the exposure of the spring part in the environment are avoided.

Preferably, the mounting plate includes a first bottom plate and a first side plate, and the first bottom plate and the first side plate form an L-shape.

Preferably, the first bottom plate is provided with four elongated holes.

By adopting the scheme, the four strip holes can ensure the moving distance of the spring horizontal device of the conveying chain in the chain tensioning process.

The utility model discloses a chain tensioning device is through rotatory supplementary tensioning bolt promotes the mounting panel to the drive is fixed the telescopic removal of spring on the mounting panel, and then pass through the fixed plate makes the spring part produces compression deformation and produces the restoring force, the spring part can drive when producing the restoring force the thrust shaft moves toward one side, and then drives driven transmission shaft moves toward same one side, just can change drive sprocket, driven sprocket's centre-to-centre spacing, realizes carrying chain's fastening.

The utility model has the advantages that:

the chain tensioning device of the utility model can utilize the restoring force of the spring part to push the thrust shaft to drive the driven transmission shaft to move, automatically change the center distance between the driving chain wheel and the driven chain wheel, realize the automatic tensioning of the conveying chain, solve the problem of loosening generated in the long-term use process of the chain, reduce the hidden trouble of equipment failure and save manpower and material resources; meanwhile, the auxiliary tensioning bolt can be screwed out, so that the conveying chain is convenient to disassemble and maintain.

Drawings

Fig. 1 is a partial cross-sectional view of the present invention;

fig. 2 is a partial cross-sectional view of another angle of the present invention.

In the figure, the part names corresponding to the respective reference numerals are: 1. a thrust shaft; 11. a first section; 111. a first fixing member; 12. a second section; 121. a fixing plate; 122. a second fixing member; 2. a clamping part; 3. an adjustment device; 31. a spring member; 32. a spring sleeve; 321. a front end cover; 322. a sleeve; 323. a rear end cover; 33. mounting a plate; 331. a first base plate; 332. a first side plate; 333. a strip hole; 34. an auxiliary fixing plate; 4. a drive device; 41. an auxiliary tension bolt; 42. an auxiliary mounting plate; 421. a second base plate; 422. a second side plate; 43. a nut; 5. a driven sprocket; 51. a driven transmission shaft.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

As shown in fig. 1-2, the chain tensioner is mainly used for adjusting the movement of the driven transmission shaft 51, and includes a thrust shaft 1, wherein the thrust shaft 1 is sequentially provided with a clamping part 2 for clamping the driven transmission shaft 51 in a matching manner, and an adjusting device 3 for adjusting the position of the thrust shaft 1. The thrust shaft 1 comprises a first section part 11 and a second section part 12 which are arranged in sequence; the diameter of the first section 11 is smaller than that of the second section 12, a first fixing member 111 is arranged at one end of the first section 11, and the first fixing member 111 is generally a nut and is used for fixing the driven transmission shaft 51; the part of the second section 12, which is more than the first section 111, can be abutted against the driven transmission shaft 51, and the first fixing member 111 can clamp the driven transmission shaft 51, so that the clamping part 2 is formed between the first section 11 and the first fixing member 111, and the clamping part 2 can clamp the driven transmission shaft 51, thereby preventing the driven transmission shaft 51 from being separated in the moving process of the thrust shaft 1. The second section 12 is provided with a fixing plate 121, wherein the fixing plate 121 is generally a shaft shoulder; a spring member 31 is sleeved outside the second section 12, the spring member 31 is generally a compression spring, and the spring member 31 generates a restoring force to push the thrust shaft 1 to move in the process of being compressed; a spring sleeve 32 is sleeved outside the second section 12 and the fixing plate 121; a second fixing member 122 is disposed at an end of the second section 12 away from the fixing plate 121, wherein the second fixing member 122 is generally a nut, and the second fixing member 122 can facilitate the assembly and disassembly of the spring sleeve 32 and also prevent the spring sleeve 32 from being disengaged during the movement; a mounting plate 33 is arranged at the lower end of the spring sleeve 32, the spring sleeve 32 and the mounting plate 33 are fixed through an auxiliary fixing plate 34, and a driving device 4 capable of adjusting the position of the mounting plate 33 is arranged at one end of the mounting plate 33; the mounting plate 33 includes a first bottom plate 331 and a first side plate 332, and the first bottom plate 331 and the first side plate 332 form an L shape; the driving unit 4 may be horizontally disposed on the first side plate 332 in a horizontal position with respect to the first bottom plate 331, or the driving unit 4 may be horizontally disposed on an auxiliary plate by vertically disposing the auxiliary plate under the first bottom plate 331. The driving device 4 comprises an auxiliary tensioning bolt 41, an auxiliary mounting plate 42 and a nut 43 for fixing the auxiliary tensioning bolt 41; the auxiliary mounting plate 42 comprises a second bottom plate 421 and a second side plate 422, and the second bottom plate 421 and the second side plate 422 form an L shape; the auxiliary tension bolt 41 is fixedly connected to the second side plate 422 through the nut 43. The auxiliary tightening bolt 41, the auxiliary fixing plate 42 and the nut 43 of the driving device 4 can be easily assembled and disassembled, and are convenient to maintain and adjust. First bottom plate 331 sets up four rectangular holes 333 the utility model discloses a chain tensioning device can the monolithic mounting on auxiliary device when the installation, certain displacement distance can be guaranteed with the cooperation of accessory plate 6 to rectangular hole 333, satisfies the required displacement distance in the chain tensioning process.

The utility model discloses a working process: after the conveying chain can be elongated under long-term operation load effect is received at the operation in-process, the accessible is twisted supplementary tensioning bolt 41 promotes mounting panel 33, and then drives spring sleeve 32's removal, spring part 31 along with spring sleeve 32's removal can receive the compression and produce the restoring force, spring part 31 can drive when producing the restoring force thrust shaft 1 moves toward one side, and further can drive driven transmission shaft 51 moves toward same side, changes drive sprocket, driven sprocket 5's centre-to-centre spacing, realizes conveying chain's tensioning fastening.

The above description is not intended to limit the present invention, and the present invention is not limited to the above examples. Those skilled in the art should also realize that changes, modifications, additions, or substitutions can be made without departing from the spirit and scope of the invention.

Claims

1. A chain tensioner for regulating the movement of a driven drive shaft (51), characterized by: the device comprises a thrust shaft (1), wherein the thrust shaft (1) is sequentially provided with a clamping part (2) matched with and used for clamping the driven transmission shaft (51) and an adjusting device (3) used for adjusting the position of the thrust shaft (1);

the thrust shaft (1) comprises a first section part (11) and a second section part (12) which are arranged in sequence;

the diameter of the first section (11) is smaller than that of the second section (12), and a first fixing piece (111) is arranged at one end of the first section (11); the clamping part (2) is formed between the first section part (11) and the first fixing part (111).

2. A chain tensioner according to claim 1, wherein: the adjusting device (3) comprises a fixing plate (121), a spring piece (31), a spring sleeve (32) and a driving device (4);

the fixing plate (121) is fixedly connected with the second section (12), and the spring piece (31) is arranged along the axial direction of the second section (12);

the fixing plate (121) and the spring piece (31) are arranged inside the spring sleeve (32);

the lower end of the spring sleeve (32) is provided with a mounting plate (33), and the spring sleeve (32) and the mounting plate (33) are fixed through an auxiliary fixing plate (34);

one end of the mounting plate (33) is provided with the driving device (4) which can adjust the position of the mounting plate (33).

3. A chain tensioner according to claim 2, wherein: the driving device (4) comprises an auxiliary tensioning bolt (41), and an auxiliary mounting plate (42) and a nut (43) which fix the auxiliary tensioning bolt (41).

4. A chain tensioner according to claim 3, wherein: the auxiliary mounting plate (42) comprises a second bottom plate (421) and a second side plate (422), and the second bottom plate (421) and the second side plate (422) form an L shape.

5. A chain tensioner according to claim 4, wherein: the auxiliary tensioning bolt (41) is fixedly connected with the second side plate (422) through the nut (43).

6. A chain tensioner according to claim 2, wherein: and a second fixing piece (122) is arranged at one end of the second section part (12) far away from the fixing plate.

7. A chain tensioner according to claim 2, wherein: the spring sleeve (32) comprises a front seal cover (321), a rear seal cover (323) and a sleeve (322).

8. A chain tensioner according to claim 7, wherein: the front sealing cover (321) is fixedly connected with the sleeve (322), and the rear sealing cover (323) is fixedly connected with the sleeve (322).

9. A chain tensioner according to claim 2, wherein: the mounting plate (33) comprises a first bottom plate (331) and a first side plate (332), and the first bottom plate (331) and the first side plate (332) form an L shape.

10. A chain tensioner according to claim 9, wherein: the first bottom plate (331) is provided with four elongated holes (333).