CN220791948U

CN220791948U - Tensioning device and belt transmission device

Info

Publication number: CN220791948U
Application number: CN202322269139.3U
Authority: CN
Inventors: 袁磊
Original assignee: Hefei Dongsheng Intelligent Equipment Co ltd
Current assignee: Hefei Dongsheng Intelligent Equipment Co ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-04-16
Anticipated expiration: 2033-08-23

Abstract

The utility model discloses a tensioning device and a belt transmission device, which comprise a mounting plate and a fixed block fixedly connected to one side of the mounting plate, wherein a sleeve is arranged at the fixed block, the sleeve penetrates through the fixed block and is in threaded connection with the fixed block, one end of the sleeve is in rotating fit with a connecting block, a driving wheel is arranged on the connecting block in a rotating mode, a driving rod is arranged in the sleeve in a sliding mode, a clamping block is elastically connected to the peripheral surface of the outer side of the driving rod, a clamping groove in sliding fit with the clamping block is formed in the inner wall of the sleeve, one side of the clamping block is provided with a first inclined surface, when the belt is tensioned by adjusting the position of the driving rod through the structure, only the driving rod is required to be rotated, and only the clamping blocks with different sizes are required to be replaced for different positions, so that the whole adjustment of the device is quick, the position of each adjustment is accurate, and the use is convenient.

Description

Tensioning device and belt transmission device

Technical Field

The utility model relates to the technical field of transmission devices, in particular to a tensioning device and a belt transmission device.

Background

Belt drives are common mechanical drives that are used in a variety of applications.

At present, the position of the driving wheel needs to be adjusted when the belt is installed, so that the belt can be sleeved between the driving wheel and the driven wheel, then the belt is tensioned by adjusting the driving wheel, but in the use process, the position of each time the driving wheel moves needs to be determined by a worker according to working experience, so that the adjustment process is time-consuming, and the accuracy of the driving wheel after adjustment cannot be guaranteed.

Accordingly, there is a need for a tensioner and belt drive that solve the above-mentioned problems.

Disclosure of Invention

The present utility model is directed to a tensioner and a belt drive device, which solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the tensioning device comprises a mounting plate and a fixed block fixedly connected to one side of the mounting plate, wherein a sleeve is arranged at the fixed block and penetrates through the fixed block and is in threaded connection with the fixed block, a connecting block is rotatably matched at one end of the sleeve, a driving wheel is rotatably arranged on the connecting block, a driving rod is slidably arranged in the sleeve, a clamping block is elastically connected to the peripheral surface of the outer side of the driving rod, a clamping groove in sliding fit with the clamping block is formed in the inner wall of the sleeve, and one side of the clamping block is provided with a first inclined surface;

the driving rod is characterized in that a groove is formed in the outer peripheral surface of the driving rod, the clamping block is arranged in the groove in a sliding mode, strip-shaped grooves are formed in two side walls of the inner portion of the groove, a plurality of protrusions are fixedly arranged on the inner wall of each strip-shaped groove, limiting blocks are elastically connected to two sides of each clamping block, and a second inclined surface is arranged at the bottom of each limiting block.

As a further scheme of the utility model, the bottom end inside the groove is provided with a second spring, and two ends of the second spring are fixedly connected with the clamping block and one surface opposite to the groove respectively.

As a further scheme of the utility model, square grooves are formed in two sides of the clamping block, the limiting block is arranged in the square grooves in a sliding mode, a first spring is arranged in each square groove, and two ends of the first spring are fixedly connected with one surface of the limiting block, which is opposite to one surface of the square groove, respectively.

As a further scheme of the utility model, one end of the limiting block is provided with a pull rope, one end of the pull rope is fixedly connected with the limiting block, and the other ends of the pull ropes on the limiting blocks on two sides are combined into one strand at the middle position of the clamping block and then extend into the driving rod, and finally extend to the outer side of the driving rod along the axis of the driving rod.

As a further scheme of the utility model, one end of the pull rope, which is arranged outside the driving rod, is fixedly connected with the pull rod.

The belt transmission device for the tensioning device is characterized in that the connecting block is rotatably provided with a driving wheel, the mounting plate is rotatably provided with a driven wheel, and a belt is sleeved between the driving wheel and the driven wheel.

According to the tensioning device and the belt transmission device, when the sleeve moves to the designated position, the pressure between the clamping block and the clamping groove side edge reaches the limit value, so that the clamping block is extruded into the groove, the clamping block and the clamping groove are separated, the driving rod is in an independent rotating state, the sleeve and the connecting block are kept stable, the driving wheel is kept stable at the designated position, the clamping block can be stably placed in the groove through the cooperation of the limiting block and the protrusion, ejection is avoided, and therefore the driving rod can be favorably rotated.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a slider structure of the present utility model;

FIG. 3 is an enlarged view of the structure of portion A of FIG. 1 in accordance with the present utility model;

FIG. 4 is an enlarged view of the structure of portion B of FIG. 3 in accordance with the present utility model;

fig. 5 is a schematic diagram of a latch structure according to the present utility model.

In the figure: 1. a mounting plate; 2. a belt; 3. a connecting block; 4. a fixed block; 5. a clamping groove; 6. a pull rope; 7. a driving rod; 8. a sleeve; 9. a driving wheel; 10. driven wheel; 11. a first inclined surface; 12. a clamping block; 13. a slide block; 14. a limiting block; 15. a protrusion; 16. a first spring; 17. a second inclined surface; 18. and a second spring.

Detailed Description

As shown in fig. 1-5, the tensioning device and the belt transmission device comprise a mounting plate 1 and a fixed block 4 fixedly connected to one side of the mounting plate 1, a sleeve 8 is arranged at the fixed block 4, the sleeve 8 penetrates through the fixed block 4 and is in threaded connection with the fixed block, a connecting block 3 is in running fit with one end of the sleeve 8, the connecting block 3 can slide relative to the mounting plate 1, and a driving wheel 9 is rotatably arranged on the connecting block 3.

In order to adjust the positions of the sleeve 8 and the connecting block 3 at one end thereof, a driving rod 7 is slidably arranged in the sleeve 8, specifically, a clamping block 12 is elastically connected to the peripheral surface of the outer side of the driving rod 7, a clamping groove 5 which is slidably matched with the clamping block 12 is formed in the inner wall of the sleeve 8, when the clamping block 12 is placed in the clamping groove 5, the sleeve 8 can be driven to synchronously rotate by the driving rod 7, and the sleeve 8 is in threaded connection with the fixed block 4, so that the sleeve 8 can move in the horizontal direction when rotating.

The fixture block 12 one side sets up to first inclined plane 11, and after the pressure between first inclined plane 11 and the draw-in groove 5 side is stupefied reaches certain numerical value, can extrude fixture block 12 to actuating lever 7 through the extrusion of draw-in groove 5 side stupefied to first inclined plane 11 to make fixture block 12 break away from with draw-in groove 5, actuating lever 7 then can not drive sleeve 8 rotation this moment, makes sleeve 8 and connecting block 3 of one end be in steady state.

During the use, in order to carry out spacing to fixture block 12, set up flutedly on the outer peripheral face of actuating lever 7, and above-mentioned fixture block 12 then slides and set up in the recess, and all set up the bar groove on the inside both sides wall of recess, fixedly on the bar inslot wall be provided with a plurality of archs 15, the both sides of fixture block 12 are all elastic connection has stopper 14, the bottom of stopper 14 is provided with second inclined plane 17 for stopper 14 can only move downwards for protruding 15.

Specifically, be provided with second spring 18 at the inside bottom of recess, the both ends of second spring 18 respectively with fixture block 12 and the relative one side fixed connection of recess to realize the elastic connection between fixture block 12 and the actuating lever 7, square groove has all been seted up to the both sides of fixture block 12, stopper 14 slides and sets up in square inslot, and installs first spring 16 in the square inslot, the both ends of first spring 16 respectively with stopper 14 and the relative one side fixed connection of square groove.

In actual use, the driven wheel 10 is rotatably arranged on the mounting plate 1, the belt 2 is sleeved between the driving wheel 9 and the driven wheel 10, when the belt 2 is tensioned by adjusting the position of the driving wheel 9, the driving rod 7 can be rotated, the clamping block 12 is driven to rotate by the driving rod 7, the sleeve 8 can be driven to rotate by the cooperation between the clamping block 12 and the clamping groove 5, the sleeve 8 can further move in the horizontal direction, the connecting block 3 and the driving wheel 9 can be driven to move, and the belt 2 between the driving wheel 9 and the driven wheel 10 is tensioned;

specifically, because the first inclined surface 11 is at one side of the clamping block 12, when the sleeve 8 moves to the designated position during use, the pressure between the clamping block 12 and the side edge of the clamping groove 5 reaches the limit value, so that the clamping block 12 is extruded into the groove, at the moment, the clamping block 12 and the clamping groove 5 are separated, the driving rod 7 is in a state of independent rotation, the sleeve 8 and the connecting block 3 are kept stable, the driving wheel 9 is kept stable at the designated position, the clamping block 12 can be stably placed in the groove to avoid ejection through the cooperation of the limiting block 14 and the protrusion 15, and the driving rod 7 can be independently rotated.

As shown in fig. 1-5, a pull rope 6 is arranged at one end of the limiting block 14, specifically, one end of the pull rope 6 is fixedly connected with the limiting block 14, the other ends of the pull ropes 6 on the limiting blocks 14 at two sides are combined into a strand at the middle position of the clamping block 12 and then extend into the driving rod 7, and finally extend to the outer side of the driving rod 7 along the axis of the driving rod 7, the pull ropes 6 are in sliding fit with the driving rod 7 and the clamping block 12, and one end of the pull rope 6 arranged at the outer side of the driving rod 7 is fixedly connected with a pull rod.

When the fixture block 12 is required to be reset in actual use, the pull rope 6 is pulled tightly to form traction force on the limiting block 14 and promote the limiting block 14 to be contained in the square groove, so that the fixture block 12 can be sprung upwards.

As shown in fig. 2, a guide groove is formed in the side surface of the mounting plate 1, a guide rod is fixedly connected in the guide groove, a sliding block 13 is fixedly connected to one side, close to the mounting plate 1, of the connecting block 3, and the guide rod penetrates through the sliding block 13 and is in sliding connection with the sliding block 13, so that sliding fit between the connecting block 3 and the mounting plate 1 is achieved.

The mounting plate 1 is fixedly connected with a support plate, and the driving rod 7 penetrates through the support plate and is rotationally connected with the support plate.

Claims

1. The utility model provides a overspeed device tensioner and belt drive device, includes mounting panel and fixed block of fixed connection in mounting panel one side, fixed block department is provided with the sleeve, the sleeve pass the fixed block and rather than threaded connection, sleeve one end normal running fit has the connecting block, it is provided with the action wheel to rotate on the connecting block, its characterized in that: a driving rod is arranged in the sleeve in a sliding manner, a clamping block is elastically connected to the peripheral surface of the outer side of the driving rod, a clamping groove which is in sliding fit with the clamping block is formed in the inner wall of the sleeve, and one side of the clamping block is provided with a first inclined surface;

2. A tensioner and belt drive as in claim 1, wherein: the bottom inside the recess is provided with the second spring, and the both ends of second spring are fixed connection with the opposite one side of fixture block and recess respectively.

3. A tensioner and belt drive as claimed in claim 2, wherein: the square grooves are formed in two sides of the clamping block, the limiting block is arranged in the square grooves in a sliding mode, the first springs are arranged in the square grooves, and two ends of each first spring are fixedly connected with one side of the limiting block, which is opposite to the side of the square grooves, respectively.

4. A tensioner and belt drive as in claim 1, wherein: one end of the limiting block is provided with a pull rope, one end of the pull rope is fixedly connected with the limiting block, the other ends of the pull ropes on the limiting blocks on two sides are combined into one strand at the middle position of the clamping block and then extend into the driving rod, and finally extend to the outer side of the driving rod along the axis of the driving rod.

5. The tensioner and belt drive of claim 4, wherein: one end of the pull rope, which is arranged outside the driving rod, is fixedly connected with a pull rod.

6. A belt drive for a tensioner as claimed in any one of claims 1 to 5, characterized in that: the connecting block is rotatably provided with a driving wheel, the mounting plate is rotatably provided with a driven wheel, and a belt is sleeved between the driving wheel and the driven wheel.