CN216343733U

CN216343733U - Transmission tensioning device

Info

Publication number: CN216343733U
Application number: CN202123173041.5U
Authority: CN
Inventors: 刘爱军
Original assignee: Tangshan Hongyun Medical Supplies Co ltd
Current assignee: Tangshan Hongyun Medical Supplies Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-04-19
Anticipated expiration: 2031-12-16

Abstract

The utility model relates to a transmission overspeed device tensioner discloses a transmission overspeed device tensioner, solves relevant chain after long-time transmission, and the chain can not in time with the sprocket tensioning, causes the chain phenomenon of jumping easily, causes the problem of transmission's damage easily, its include the chain and with chain meshing's first sprocket and second sprocket, first sprocket and second sprocket are installed on the mounting bracket, install straining device on the second sprocket, straining device includes the carriage, second sprocket and carriage fixed connection, carriage and mounting bracket sliding connection, the one end that first sprocket was kept away from to the carriage is equipped with fixed subassembly, the carriage passes through fixed subassembly fixed connection with the mounting bracket, realizes the tensioning to the chain from this, reduces because the chain appears jumping and causes the condition that transmission damaged.

Description

Transmission tensioning device

Technical Field

The application relates to the technical field of chain tensioning, in particular to a transmission tensioning device.

Background

In the production process of PVC gloves, chain transmission is a more conventional transmission mode, and the chain transmission is a transmission mode of transmitting the motion and power of a driving chain wheel with a special tooth form to a driven chain wheel with a special tooth form through a chain.

Currently, the related chain transmission mode includes a chain, the chain is installed on a chain wheel, and the power source drives a connecting wheel to rotate, so that the transmission of the chain can be realized.

After the chain is driven for a long time, the chain cannot be tensioned with the chain wheel in time, so that the phenomenon of chain jumping is easily caused, and the damage of transmission equipment is easily caused.

SUMMERY OF THE UTILITY MODEL

In order to reduce the situation that the chain cannot keep a tensioning state to cause damage to a transmission device, the application provides a transmission tensioning device.

The application provides a transmission overspeed device tensioner adopts following technical scheme:

the utility model provides a transmission tensioning device, includes the chain and with chain meshing's first sprocket and second sprocket, first sprocket and second sprocket are installed on the mounting bracket, install straining device on the second sprocket, straining device includes the carriage, second sprocket and carriage fixed connection, carriage and mounting bracket sliding connection, the one end that first sprocket was kept away from to the carriage is equipped with fixed subassembly, the carriage passes through fixed subassembly fixed connection with the mounting bracket.

Through adopting above-mentioned technical scheme, straining device realizes the tensioning to the chain through adjusting the distance between first sprocket and the second sprocket, passes through the carriage as the second sprocket and slides the back towards the direction of keeping away from first sprocket to it is fixed through fixed subassembly, thereby realize the tensioning to the chain, reduce because the chain appears jumping the condition that the chain caused the transmission to damage.

Optionally, the fixed subassembly includes threaded rod and nut, the axle center of threaded rod perpendicular to second sprocket, the through-hole has been seted up on the mounting bracket, the one end and the carriage fixed connection of threaded rod, the other end of threaded rod run through the through-hole and with nut threaded connection, the nut is located the one end that the first sprocket was kept away from to the mounting bracket.

Through adopting above-mentioned technical scheme, the threaded rod passes through the through-hole and runs through the mounting bracket to it is fixed through the nut, makes the position of sliding frame on the mounting bracket can fix, thereby guarantees that the second sprocket can keep the tensioning state, reduces transmission's damage.

Optionally, the tensioning mechanism further comprises a drive assembly for driving the sliding frame to slide along the length direction of the mounting frame.

Through adopting above-mentioned technical scheme, because the weight of the second sprocket of installing on the carriage is heavier, the manual carriage that promotes slides and consumes the manpower relatively, can use manpower sparingly through the slip of drive assembly drive carriage, guarantees that the drive frame can slide along the length direction of mounting bracket, realizes the tensioning.

Optionally, the number of the driving assemblies is at least two, and the two driving assemblies are symmetrically arranged around the sliding frame.

Through adopting above-mentioned technical scheme, two drive assembly can be better promote the carriage and slide along the length direction of mounting bracket, reduce the condition that the skew appears in the slip of carriage.

Optionally, the driving assembly comprises a lead screw perpendicular to the axis of the second chain wheel and a driving motor for driving the lead screw to rotate, the lead screw is connected with a connecting block in a threaded manner, and the connecting block is fixedly connected with the sliding frame.

Through adopting above-mentioned technical scheme, driving motor passes through the drive lead screw and rotates, makes the connecting block on the lead screw slide along the length direction of lead screw, and connecting block and carriage fixed connection simultaneously, the connecting block can drive the carriage and slide along the length direction of mounting bracket at the in-process that removes.

Optionally, a connecting plate is arranged between the connecting block and the sliding frame, the connecting plate is fixedly connected with the connecting block, and the connecting plate is fixed with the sliding frame through bolts.

Through adopting above-mentioned technical scheme, when wearing and tearing appear in the carriage and need change, can demolish the bolt between connecting plate and the carriage, promote the carriage to the position of keeping away from drive assembly, pull out the carriage again and change from the mounting bracket.

Optionally, the tensioning mechanism further comprises a guide assembly for ensuring smooth sliding of the sliding frame.

Through adopting above-mentioned technical scheme, the guide assembly leads to the slip of carriage, reduces the condition that the carriage appears the skew when sliding.

Optionally, the guide assembly comprises an installation block and a guide block, a guide groove is formed in the installation block, the length direction of the guide groove is parallel to the sliding direction of the sliding frame, the guide block is fixedly connected to the connecting block, and the guide block is slidably connected with the guide groove.

Through adopting above-mentioned technical scheme, the guide block can slide along the length direction of guide way, and guide block and connecting block fixed connection simultaneously to the realization improves the stability when the carriage slides to the direction of connecting block, reduces the condition that sliding deviation appears.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the tensioning mechanism is used for tensioning the chain by adjusting the distance between the first chain wheel and the second chain wheel, and the second chain wheel slides towards the direction far away from the first chain wheel through the sliding frame and is fixed through the fixing assembly, so that the chain is tensioned, and the condition that the chain jumps to cause damage to transmission equipment is reduced;

2. because the second chain wheel arranged on the sliding frame is heavy, manual pushing of the sliding frame is labor-consuming, the sliding of the sliding frame is driven by the driving assembly, labor can be saved, the driving frame can be guaranteed to slide along the length direction of the mounting frame, and tensioning is achieved;

3. the guide assembly guides the sliding of the sliding frame, and the situation of offset when the sliding frame slides is reduced.

Drawings

FIG. 1 is an exploded view of a first sprocket, a second sprocket and a mounting bracket.

Fig. 2 is a schematic structural view of the fixing assembly.

Fig. 3 is a schematic structural view of the driving assembly and the guide assembly.

Description of reference numerals: 1. a mounting frame; 11. a first sprocket; 12. a second sprocket; 121. a rotating shaft; 13. a chain; 14. a through hole; 15. a butt joint plate; 2. a tensioning mechanism; 21. a carriage; 211. a bearing end cap; 22. a fixing assembly; 221. a threaded rod; 222. a nut; 23. a drive assembly; 231. a drive motor; 232. a lead screw; 233. connecting blocks; 234. a connecting plate; 24. a guide assembly; 241. mounting blocks; 2411. a guide groove; 242. and a guide block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a transmission tensioning device.

Example 1

Referring to fig. 1, a transmission tensioning device includes a mounting bracket 1, the mounting bracket 1 is vertically placed on the ground, a first chain wheel 11 and a second chain wheel 12 are installed on the mounting bracket 1, the first chain wheel 11 and the second chain wheel 12 are respectively located at two ends of the mounting bracket 1, the axes of the first chain wheel 11 and the second chain wheel 12 are parallel to each other, the first chain wheel 11 and the second chain wheel 12 are located at the same horizontal height, a chain 13 is engaged on the first chain wheel 11 and the second chain wheel 12, and the transmission of the chain 13 can be realized by the rotation of the first chain wheel 11 and the second chain wheel 12 driven by an external driving force.

The second chain wheel 12 is further provided with the tensioning mechanism 2, and the tensioning mechanism 2 can adjust the position of the second chain wheel 12, so that the effect that the chain 13 on the first chain wheel 11 and the second chain wheel 12 can be tensioned is achieved, and the condition that the transmission equipment is damaged due to chain jumping of the chain 13 is reduced.

Referring to fig. 1 and 2, the tensioning mechanism 2 includes a sliding frame 21, the width of the sliding frame 21 is the same as that of the mounting frame 1, and the sliding frame 21 can horizontally slide in the mounting frame 1 along the length direction of the mounting frame 1 to move the second chain wheel 12 away from or close to the first chain wheel 11. The second chain wheel 12 is installed in the sliding frame 21, two bearing end covers 211 are fixed on the sliding frame 21, the two bearing end covers 211 are parallel to each other and fixed on the sliding frame 21 at intervals, the second chain wheel 12 is located between the two bearing end covers 211, a rotating shaft 121 is arranged on the axis of the second chain wheel 12, the rotating shaft 121 is rotatably connected with the second chain wheel 12, and the rotating shaft 121 is perpendicular to the two bearing end covers 211 and fixedly connected with the bearing end covers 211.

Referring to fig. 2, a fixing assembly 22 is disposed at an end of the sliding frame 21 away from the first chain wheel 11, the fixing assembly 22 includes a threaded rod 221 and a nut 222, the threaded rod 221 is perpendicular to an axis of the second chain wheel 12, the threaded rod 221 is fixed on the sliding frame 21 and extends in a direction away from the first chain wheel 11, and the nut 222 is in threaded connection with the threaded rod 221; the through hole 14 is opened at one end of the mounting rack 1 far away from the first chain wheel 11, the axis of the through hole 14 and the axis of the threaded rod 221 are located on the same straight line, the threaded rod 221 penetrates through the through hole 14 and is in threaded connection with the nut 222, and the nut 222 abuts against one side of the mounting rack 1 far away from the sliding rack 21, so that the sliding rack 21 can be fixed on the mounting rack 1.

The implementation principle of the embodiment 1 is as follows:

when the chain 13 needs to be tensioned, the sliding frame 21 is pushed to slide towards the direction away from the first chain wheel 11, the second chain wheel 12 is far away from the first chain wheel 11, the threaded rod 221 penetrates through the mounting frame 1, one end, penetrating out of the mounting frame 1, of the threaded rod 221 is fixed through a bolt, the sliding frame 21 can be fixed on the mounting frame 1, the chain 13 on the first chain wheel 11 and the second chain wheel 12 is tensioned, and the condition that the transmission equipment is damaged due to chain jumping is reduced.

Example 2

Referring to fig. 3, the difference between this embodiment and embodiment 1 is that the tensioning mechanism 2 further includes a driving component 23 for driving the sliding frame 21 to slide, and the driving component 23 can adjust the position of the sliding frame 21, so as to save manpower for pushing the sliding frame 21.

The number of the driving assemblies 23 is two, the two driving assemblies 23 are symmetrically arranged about the sliding frame 21, and the two driving assemblies 23 can simultaneously push the sliding frame 21, so that the sliding frame 21 can smoothly slide along the length direction of the mounting frame 1.

Every drive assembly 23 all includes driving motor 231, lead screw 232 and connecting block 233, driving motor 231 can choose for use to be servo motor, driving motor 231 fixes the one end of keeping away from first sprocket 11 at mounting bracket 1, driving motor 231's output and lead screw 232 fixed connection, lead screw 232 is on a parallel with the length direction of mounting bracket 1, and lead screw 232 through connection piece 233, threaded connection between connecting block 233 and the lead screw 232, the one end butt that driving motor 231 was kept away from to lead screw 232 has butt plate 15, lead screw 232 rotates with butt plate 15 to be connected, and butt plate 15 fixes on mounting bracket 1.

Still weld on the connecting block 233 and have connecting plate 234, connecting plate 234 perpendicular to connecting block 233, connecting plate 234 and carriage 21 butt, and pass through bolted connection between connecting plate 234 and the carriage 21, realize connecting block 233 and carriage 21's fixed, when carriage 21 appears wearing and tearing, can demolish the bolt between connecting plate 234 and the carriage 21, and then separate connecting block 233 and carriage 21, promote carriage 21 to the position of keeping away from drive assembly 23, pull out carriage 21 level and dismantle the change.

Referring to fig. 3, in order to further improve the effect of the driving assembly 23 that pushes the sliding frame 21 horizontally, a guide assembly 24 is further disposed below the driving assembly 23, the guide assembly 24 includes a mounting block 241 and a guide block 242, the mounting block 241 is horizontally fixed on the mounting frame 1, the mounting block 241 has the same length as the lead screw 232, a guide groove 2411 is formed in the upper surface of the mounting block 241, and the direction of the guide groove 2411 is the same as the sliding direction of the sliding frame 21; the guide block 242 is fixed on the lower surface of the connecting block 233, the guide block 242 is inserted into the guide groove 2411, when the connecting block 233 moves on the lead screw 232, the guide block 242 fixed with the connecting block 233 horizontally slides along the length direction of the guide groove 2411, so that the guide effect on the connecting block 233 is realized, the stability of the sliding frame 21 during sliding is further improved, and the sliding deviation is reduced.

The implementation principle of the embodiment 2 is as follows:

when the tensioning degree of the chain 13 needs to be adjusted, the driving motor 231 drives the screw rod 232 to rotate, the connecting block 233 on the screw rod 232 moves horizontally, the guiding component 24 guides the sliding of the connecting block 233, the sliding frame 21 fixedly connected with the connecting block 233 moves along with the connecting block 233, the sliding effect of the sliding frame 21 along the length direction of the mounting rack 1 is realized, after the sliding frame 21 slides to a proper position, the nut 222 on the threaded rod 221 is rotated, the nut 222 abuts against the mounting rack 1, the position fixing of the sliding frame 21 is realized, and further the tensioning effect of the chain 13 is realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A transmission tensioner comprising a chain (13) and first (11) and second (12) sprockets engaged with the chain (13), the first (11) and second (12) sprockets being mounted on a mounting frame (1), characterized in that: install straining device (2) on second sprocket (12), straining device (2) include carriage (21), second sprocket (12) and carriage (21) fixed connection, carriage (21) and mounting bracket (1) sliding connection, the one end that first sprocket (11) was kept away from in carriage (21) is equipped with fixed subassembly (22), carriage (21) and mounting bracket (1) are through fixed subassembly (22) fixed connection.

2. A drive tensioner as set forth in claim 1, wherein: fixed subassembly (22) include threaded rod (221) and nut (222), the axle center of threaded rod (221) perpendicular to second sprocket (12), through-hole (14) have been seted up on mounting bracket (1), the one end and carriage (21) fixed connection of threaded rod (221), the other end of threaded rod (221) run through-hole (14) and with nut (222) threaded connection, nut (222) are located mounting bracket (1) and keep away from the one end of first sprocket (11).

3. A drive tensioner as set forth in claim 1, wherein: the tensioning mechanism (2) further comprises a driving assembly (23) for driving the sliding frame (21) to slide along the length direction of the mounting frame (1).

4. A drive tensioner as set forth in claim 3, wherein: the number of the driving assemblies (23) is at least two, and the two driving assemblies (23) are symmetrically arranged relative to the sliding frame (21).

5. The drive tensioner as in claim 4, wherein: the driving assembly (23) comprises a lead screw (232) perpendicular to the axis of the second chain wheel (12) and a driving motor (231) for driving the lead screw (232) to rotate, a connecting block (233) is connected to the lead screw (232) in a threaded mode, and the connecting block (233) is fixedly connected with the sliding frame (21).

6. The drive tensioner as in claim 5, wherein: be equipped with connecting plate (234) between connecting block (233) and carriage (21), connecting plate (234) and connecting block (233) fixed connection, just pass through the bolt fastening between connecting plate (234) and carriage (21).

7. The drive tensioner as in claim 6, wherein: the tensioning mechanism (2) also comprises a guide assembly (24) which ensures the sliding rack (21) to slide smoothly.

8. A drive tensioner as set forth in claim 7, wherein: the guide assembly (24) comprises an installation block (241) and a guide block (242), a guide groove (2411) is formed in the installation block (241), the length direction of the guide groove (2411) is parallel to the sliding direction of the sliding frame (21), the guide block (242) is fixedly connected to the connecting block (233), and the guide block (242) is in sliding connection with the guide groove (2411).