Belt tensioning device

Abstract

The utility model discloses a belt tensioning device, which relates to the technical field of belt conveyors and comprises suspension arms, mounting plates are mounted on the upper surfaces of the suspension arms, mounting holes are formed in four corners of each mounting plate in a rectangular shape, and first sliders are mounted on the lower surfaces of the mounting plates through telescopic mechanisms. Rectangular openings are formed in the left and right lifting arms corresponding to the first sliding blocks, a compression roller is mounted between the opposite surfaces of the left and right first sliding blocks, second sliding blocks are mounted on the lower surfaces of the first sliding blocks through tensioning mechanisms, a fixing plate is mounted between the left and right second sliding blocks, and a scraper is mounted on the fixing plate through a mounting mechanism; the belt tensioning device can accurately adjust the tensioning degree of the belt, so that the tensioning force of the belt is more moderate, the stability of the belt is greatly improved, the service life of the belt is prolonged, the function of cleaning the lower surface of the belt by the tensioning device is added, and the belt tensioning device is high in practicability, beneficial to use, simple in structure and rapid to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to a belt tensioning device. Background Art

[0002] Belt conveyor equipment is widely used in agriculture, mining and industrial transportation. The reliability of cargo transportation directly affects the production efficiency of production activities. In the process of cargo transportation, after the belt conveyor has been used for a period of time, as the belt's expansion and contraction and wear change, the belt will become loose, causing the belt to slip and become unstable.

[0003] In the prior art, conventional belt tensioning devices mostly use springs to push tensioning rollers to convey the belts. However, the springs are prone to deformation during use, and the tension of the springs is difficult to accurately control, resulting in an unreasonable tension of the belts, which makes the belt tensioning effect poor and is not conducive to use. At the same time, the belt tensioning device has a single function during use, and it is difficult to clean impurities on the lower surface of the belt according to use requirements, resulting in poor practicality. Utility Model Content

[0004] The utility model provides a belt tensioning device to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a belt tensioning device, comprising a suspension arm, two suspension arms are arranged on the left and right, a mounting plate is installed on the upper surface of each suspension arm, mounting holes are provided in a rectangular shape at the four corners of the mounting plate, a first slider is installed on the lower surface of each mounting plate through a telescopic mechanism, a rectangular opening is provided on the left and right suspension arms corresponding to the first slider, and a pressure roller is installed between the opposite surfaces of the left and right first sliders, a second slider is installed on the lower surface of each first slider through a tensioning mechanism, and the second slider is movably installed in the rectangular opening, and a fixed plate is installed between the left and right second sliders, and a scraper is installed on the fixed plate through a mounting mechanism.

[0006] Furthermore, the telescopic mechanism includes an electric telescopic rod, a pressure sensor, a block, a first locking bolt and a control box. The electric telescopic rod is installed on the lower surface of the mounting plate. The pressure sensor is installed on the lower surface of the piston of the electric telescopic rod. The block is fixedly installed on the lower surface of the pressure sensor. The block is locked and fixed to the first slider by the first locking bolt. The control box is located on the left side of the electric telescopic rod.

[0007] Furthermore, the clamping block is an inverted U-shaped structure, and threaded holes for installing the first locking bolt are provided on the front and rear side walls of the clamping block and the first sliding block.

[0008] Furthermore, the first slider and the second slider are both T-shaped structures placed laterally, and the front and rear side surfaces of the first slider and the second slider are movably fitted with the front and rear inner walls of the rectangular opening.

[0009] Furthermore, the tensioning mechanism includes a spring, a bolt rod and a limit nut. The spring is fixedly installed on the lower surface of the first slider. The bolt rod is fixedly installed on the lower surface of the spring, and the bolt rod is movably inserted in the second slider. The bolt rod is threadedly installed with limit nuts on the upper and lower sides of the second slider.

[0010] Furthermore, a through hole for installing the bolt rod is provided at a position corresponding to the bolt rod on the second sliding block.

[0011] Furthermore, the mounting mechanism includes a pressure plate and a second locking bolt, wherein the pressure plate is arranged on the front side of the scraper, the pressure plate is locked and fixed to the fixing plate by the second locking bolt, and the pressure plate presses and fixes the scraper to the front side of the fixing plate.

[0012] Compared with the prior art, the utility model provides a belt tensioning device having the following beneficial effects:

[0013] 1. The belt tensioning device is used for arranging left and right telescopic mechanisms to synchronously drive the first slider to move up and down along the rectangular opening, so that the first slider drives the pressure roller to move up and down, and the pressure roller drives the belt to move up and down, which can accurately adjust the belt tension, so that the belt tensioning force is more moderate, greatly improve the stability of the belt, and extend the service life of the belt.

[0014] 2. The belt tensioning device is used for driving the second slider to move upward by setting a tensioning mechanism, so that the second slider drives the scraper to move upward through the fixed plate, and the scraper scrapes impurities on the lower surface of the belt, thereby increasing the cleaning function of the tensioning device on the lower surface of the belt. The tensioning device is highly practical and easy to use, and the tensioning device has a simple structure and is quick to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model.

[0017] In the figure: 1. boom; 2. mounting plate; 3. mounting hole; 4. telescopic mechanism; 401. electric telescopic rod; 402. pressure sensor; 403. block; 404. first locking bolt; 405. control box; 5. first slider; 6. rectangular opening; 7. pressure roller; 8. tensioning mechanism; 801. spring; 802. bolt rod; 803. limit nut; 9. second slider; 10. fixing plate; 11. mounting mechanism; 111. pressure plate; 112. second locking bolt; 12. scraper; 13. threaded hole; 14. through hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 and Figure 2 The utility model discloses a belt tensioning device, including a suspension arm 1, two suspension arms 1 are arranged on the left and right, a mounting plate 2 is installed on the upper surface of the suspension arm 1, and mounting holes 3 are opened in a rectangular shape at four corners of the mounting plate 2, and a first slider 5 is installed on the lower surface of the mounting plate 2 through a telescopic mechanism 4, and a rectangular opening 6 is opened on the left and right suspension arms 1 corresponding to the first slider 5, and a pressure roller 7 is installed between the opposite surfaces of the left and right first sliders 5, a second slider 9 is installed on the lower surface of the first slider 5 through a tensioning mechanism 8, and the second slider 9 is movably installed in the rectangular opening 6, and a fixed plate 10 is installed between the left and right second sliders 9, and a scraper 12 is installed on the fixed plate 10 through a mounting mechanism 11, and the scraper 12 is made of waste belts.

[0020] Specifically, the telescopic mechanism 4 includes an electric telescopic rod 401, a pressure sensor 402, a block 403, a first locking bolt 404 and a control box 405. The electric telescopic rod 401 is installed on the lower surface of the mounting plate 2. The pressure sensor 402 is installed on the lower surface of the piston of the electric telescopic rod 401. The block 403 is fixedly installed on the lower surface of the pressure sensor 402. The block 403 is locked and fixed to the first slider 5 by the first locking bolt 404. The control box 405 is located on the left side of the electric telescopic rod 401.

[0021] In this embodiment, the piston of the electric telescopic rod 401 drives the pressure sensor 402 to move downward, the pressure sensor 402 drives the block 403 to move downward, the block 403 drives the first slider 5 to move downward, and the first slider 5 drives the pressure roller 7 to move downward, thereby tightening the belt. At the same time, the upward pressure of the pressure roller 7 is detected by the pressure sensor 402, so that the tightening force of the pressure roller 7 on the belt is maintained within a moderate range.

[0022] Specifically, the clamping block 403 is an inverted U-shaped structure, and threaded holes 13 for installing the first locking bolt 404 are provided on the front and rear side walls of the clamping block 403 and the first sliding block 5 .

[0023] In this embodiment, the threaded hole 13 facilitates the installation of the first locking bolt 404 , so that the first locking bolt 404 can quickly lock and fix the first sliding block 5 and the clamping block 403 .

[0024] Specifically, the first slider 5 and the second slider 9 are both T-shaped structures placed laterally, and the front and rear side surfaces of the first slider 5 and the second slider 9 are movably fitted with the front and rear inner walls of the rectangular opening 6 .

[0025] In this embodiment, the first slider 5 and the second slider 9 move up and down along the front and rear inner walls of the rectangular opening 6 or the surfaces facing the left and right suspension arms 1, so that the up and down movement process is stable.

[0026] Specifically, the tensioning mechanism 8 includes a spring 801, a bolt rod 802 and a limit nut 803. The spring 801 is fixedly installed on the lower surface of the first slider 5. The bolt rod 802 is fixedly installed on the lower surface of the spring 801, and the bolt rod 802 is movably inserted in the second slider 9. The limit nuts 803 are threadedly installed on the upper and lower sides of the second slider 9 on the bolt rod 802.

[0027] In this embodiment, the spring 801 pulls the bolt rod 802 to move upward, and the bolt rod 802 drives the second slider 9 to move upward through the limit nut 803. The second slider 9 drives the scraper 12 on the fixed plate 10 to move up and down, so that the upper surface of the scraper 12 fits the lower surface of the belt. At the same time, the upper and lower limit nuts 803 move up and down on the bolt rod 802, thereby achieving the effect of adjusting the upper and lower positions of the scraper 12.

[0028] Specifically, a through hole 14 for installing the bolt rod 802 is provided at a position corresponding to the bolt rod 802 on the second sliding block 9 .

[0029] In this embodiment, the through hole 14 enables the bolt rod 802 to be inserted into the second sliding block 9 .

[0030] Specifically, the mounting mechanism 11 includes a pressure plate 111 and a second locking bolt 112. The pressure plate 111 is arranged on the front side of the scraper 12. The pressure plate 111 is locked and fixed to the fixing plate 10 by the second locking bolt 112, and the pressure plate 111 presses and fixes the scraper 12 to the front side of the fixing plate 10.

[0031] In this embodiment, the second locking bolt 112 locks and fixes the pressing plate 111 and the fixing plate 10 , so that the pressing plate 111 presses the scraper 12 against the front side of the fixing plate 10 , thereby achieving the effect of fixing the scraper 12 .

[0032] When in use, the mounting plate 2 is mounted on the conveyor frame by installing the screws in the mounting holes 3, and then the left and right first sliders 5 of the pressure roller 7 are inserted into the rectangular openings 6 on the left and right hanging arms 1, and then the first locking bolts 404 in the telescopic mechanism 4 are threadedly installed in the threaded holes 13 on the block 403 and the first slider 5 to achieve the fixing effect of the first slider 5, and the pressure sensor 402 is driven downward by the piston of the electric telescopic rod 401 in the left and right telescopic mechanism 4, and the pressure sensor 402 drives the block 403 to move downward, and the block 403 drives the first slider 5 to move downward, so that the first slider 5 drives the pressure roller 7 to move downward, thereby tightening the belt, and at the same time, the upward pressure of the pressure roller 7 is detected by the pressure sensor 402, and the pressure information is fed back to the control box 405, and the control box 405 drives the electric telescopic rod 401 to drive the block 403 on the lower surface of the pressure sensor 402 up and down, that is, The first slider 5 drives the pressure roller 7 to move up and down, so that the tensioning force of the pressure roller 7 on the belt is maintained in a moderate range, and the belt tension can be accurately adjusted, so that the tensioning force of the belt is more moderate, which greatly improves the stability of the belt and prolongs the service life of the belt. The left and right second sliders 9 are installed on the bolt rod 802 through the through hole 14, and the bolt rod 802 is moved up and down through the upper and lower limit nuts 803 to adjust the upper and lower positions of the fixed plate 10. The bolt rod 802 is pulled upward by the spring 801, and the bolt rod 802 drives the second slider 9 to move upward through the limit nut 803. The second slider 9 drives the scraper 12 on the fixed plate 10 to move up and down, so that the upper surface of the scraper 12 is in contact with the lower surface of the belt. The scraper 12 scrapes impurities on the lower surface of the belt, thereby increasing the cleaning function of the tensioning device on the lower surface of the belt. The tensioning device is highly practical and easy to use. The tensioning device has a simple structure and is quick to disassemble and assemble.

[0033] To sum up, the belt tensioning device can accurately adjust the belt tension, so that the belt tensioning force is more moderate, greatly improve the stability of the belt, extend the service life of the belt, and increase the cleaning function of the tensioning device on the lower surface of the belt. It is highly practical and easy to use. The tensioning device has a simple structure and is quick to disassemble and assemble.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt tensioning device, comprising a suspension arm (1), characterized in that: Two of the arms (1) are provided on the left and right sides, and the upper surfaces of the arms (1) are both provided with mounting plates (2). The mounting plates (2) have mounting holes (3) at four rectangular corners. The lower surfaces of the mounting plates (2) are both provided with first sliders (5) via telescopic mechanisms (4). The left and right arms (1) corresponding to the first sliders (5) are both provided with rectangular openings (6), and a pressure roller (7) is installed between the opposite surfaces of the left and right first sliders (5). The lower surfaces of the first sliders (5) are both provided with second sliders (9) via tensioning mechanisms (8), and the second sliders (9) are movably installed in the rectangular openings (6), and a fixing plate (10) is installed between the left and right second sliders (9), and a scraper (12) is installed on the fixing plate (10) via a fixing mechanism (11).

2. A belt tensioning device according to claim 1, characterized in that: The telescopic mechanism (4) comprises an electric telescopic rod (401), a pressure sensor (402), a clamping block (403), a first locking bolt (404) and a control box (405); the electric telescopic rod (401) is mounted on the lower surface of the mounting plate (2); the pressure sensor (402) is mounted on the lower surface of the piston of the electric telescopic rod (401); the clamping block (403) is fixedly mounted on the lower surface of the pressure sensor (402); the clamping block (403) is locked and fixed to the first sliding block (5) by means of the first locking bolt (404); and the control box (405) is located on the left side of the electric telescopic rod (401).

3. A belt tensioning device according to claim 2, characterized in that: The clamping block (403) is an inverted U-shaped structure, and threaded holes (13) for installing the first locking bolt (404) are provided on the front and rear side walls of the clamping block (403) and the first sliding block (5).

4. The belt tensioning device according to claim 1, characterized in that: The first sliding block (5) and the second sliding block (9) are both T-shaped structures placed transversely, and the front and rear side surfaces of the first sliding block (5) and the second sliding block (9) are movably fitted with the front and rear inner walls of the rectangular opening (6).

5. The belt tensioning device according to claim 1, characterized in that: The tensioning mechanism (8) comprises a spring (801), a bolt rod (802) and a limit nut (803); the spring (801) is fixedly mounted on the lower surface of the first slider (5); the bolt rod (802) is fixedly mounted on the lower surface of the spring (801); the bolt rod (802) is movably inserted into the second slider (9); and the limit nuts (803) are threadedly mounted on the upper and lower side surfaces of the second slider (9) on the bolt rod (802).

6. The belt tensioning device according to claim 1, characterized in that: A through hole (14) for mounting the bolt rod (802) is provided on the second sliding block (9) at a position corresponding to the bolt rod (802).

7. The belt tensioning device according to claim 1, characterized in that: The mounting mechanism (11) comprises a pressing plate (111) and a second locking bolt (112); the pressing plate (111) is arranged on the front side of the scraper plate (12); the pressing plate (111) is locked and fixed to the fixing plate (10) via the second locking bolt (112); and the pressing plate (111) presses and fixes the scraper plate (12) to the front side of the fixing plate (10).

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