Belt tensioning device

Abstract

The utility model discloses a belt tensioning device, which belongs to the technical field of belt tensioning adjustment and is characterized in that two groups of supporting seats are arranged at two ends of a base, a driving shaft and a transmission shaft are respectively mounted on the supporting seats, and transmission components are fixedly connected to the surfaces of two ends of the driving shaft and the transmission shaft. One end of the transmission shaft is fixedly connected with a stepping motor, an adjusting mechanism is arranged at the center of the surface of the base, a movable assembly is installed on the adjusting mechanism, a tensioning wheel is installed at the top of the movable assembly, and the surface of the tensioning wheel is attached to the transmission assembly; by arranging the adjusting mechanism, the movable assembly can be driven to be adjusted, so that the movable assembly drives the tensioning wheel to be adjusted on the belt, the tensioning degree of the belt is adjusted, separation between the belt and the belt pulley is avoided, the transmission effect of the belt is improved, meanwhile, the influence on normal work of equipment is reduced, and the service life of the equipment is prolonged. The problems in the background technology are solved.

Description

Technical Field

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

[0002] Belts rely on friction to work. Friction can only be generated when there is an initial pull. The magnitude of friction is calculated using Euler's formula. In actual use, the belt will loosen and deviate, so it is necessary to tension (tighten) it frequently. In physics, tensioning the belt means not letting the belt loose. The purpose is to prevent the belt from slipping, allowing the belt to rotate smoothly and transport objects smoothly.

[0003] A belt tensioning device proposed according to announcement number: CN220082050U includes a mounting frame for conveying equipment, a roller shaft is rotatably arranged on the inner side of the mounting frame, one end of the roller shaft is fixedly connected to a first pulley, an outer surface of the first pulley is meshed and connected to a belt, an outer surface of the belt is meshed and connected to a second pulley, a center of the second pulley is fixedly connected to an output shaft of a driving motor, a lower surface of the mounting frame is fixedly connected to a supporting plate, and one side of the supporting plate is fixedly connected to a transverse plate. The utility model always keeps contact with a slider through a first spring, so that the slider can drive a gear rod, the gear rod drives a wheel frame, and the wheel frame drives a tensioning wheel to apply a force to the belt. The tensioning wheel will be driven to rotate during the movement of the belt, so that the tensioning wheel will not hinder the operation of the belt. When the belt becomes loose, the tensioning wheel can automatically compensate for the tension of the belt under the action of the first spring, so that the belt always maintains a good tension.

[0004] According to the above introduction, as time goes by, the belt will become loose to varying degrees, the tension cannot be guaranteed, and it is difficult to detect the tension of the belt, which will cause the belt to separate from the pulley, thereby affecting the transmission effect of the belt and the normal operation of the equipment. In order to solve the above problems, a belt tensioning device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a belt tensioning device, which can drive the movable component to be adjusted by setting an adjustment mechanism, so that the movable component drives the position of the tensioning wheel to be adjusted on the belt, thereby realizing the adjustment of the belt tension, avoiding the separation between the belt and the pulley, improving the transmission effect of the belt, and reducing the impact on the normal operation of the equipment, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a belt tensioning device, comprising a base, two groups of support seats are arranged at both ends of the base, a driving shaft and a transmission shaft are respectively installed on the support seats, surfaces at both ends of the driving shaft and the transmission shaft are fixedly connected with transmission components, one end of the transmission shaft is fixedly connected with a stepping motor, an adjustment mechanism is arranged at the center of the base surface, a movable component is installed on the adjustment mechanism, a tensioning wheel is installed on the top of the movable component, and the surface of the tensioning wheel is in contact with the transmission component.

[0007] Preferably, the movable component includes a limit seat, which is arranged between the two groups of support seats, and the opposite side of the limit seat is movably connected with a rotating shaft, and both ends of the rotating shaft are fixedly connected with a movable rod, the top of the movable rod is movably connected to the tensioning wheel, and the inner cavity of the adjusting mechanism is fixedly connected to the surface of the rotating shaft.

[0008] Preferably, the transmission assembly includes a driving pulley and a driven pulley, the driving pulley is mounted on a rotating shaft, the driven pulley is mounted on a driven shaft, the driving pulley and the driven pulley are connected via a belt drive, and the tensioning pulley is in contact with the surface of the belt.

[0009] Preferably, the adjustment mechanism includes an electric push rod, which is installed on a base, and a piston rod of the electric push rod is fixedly connected to a rack plate, a gear is meshed on the rack plate, an inner cavity of the gear is fixedly connected to a rotating shaft, a support block is provided at the bottom end of the rack plate, and the support block is slidably connected to the base.

[0010] Preferably, a slide groove is provided on the base at a position corresponding to the support block, the support block is slidably connected in the inner cavity of the slide groove, a positioning rod is fixedly connected inside the slide groove, and the support block is slidably connected on the surface of the positioning rod.

[0011] Preferably, the limiting seat is provided with a groove, and one end of the movable rod passes through the groove of the limiting seat and is fixedly connected to the rotating shaft.

[0012] Preferably, an anti-collision block is bonded in the groove of the limiting seat, and the anti-collision block is fitted with the movable rod.

[0013] Preferably, the base is fixedly connected to a support frame at one end close to the driven shaft, and an adjusting rod is movably connected to the support frame. Teeth are provided on the lower surface of one end of the adjusting rod, and the position of the teeth of the adjusting rod is pressed into the surface of the tensioning wheel. A hanging ring is fixedly connected to the end of the adjusting rod away from the support frame, and a counterweight block is provided on the hanging ring through a pull rope.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a belt tensioning device, which can drive a movable component to be adjusted by arranging an adjustment mechanism, so that the movable component drives the position of the tensioning wheel on the belt to adjust, thereby realizing the adjustment of the tension of the belt, avoiding the separation between the belt and the pulley, improving the transmission effect of the belt, and reducing the influence on the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a top view schematic diagram of the base and the adjustment mechanism structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the adjusting mechanism, movable assembly, support frame and adjusting rod of the utility model.

[0020] Numbers in the figure: 1. Base; 2. Support seat; 3. Driving shaft; 4. Transmission shaft; 5. Transmission assembly; 51. Driving pulley; 52. Driven pulley; 53. Belt; 6. Stepper motor; 7. Adjustment mechanism; 71. Electric push rod; 72. Rack plate; 73. Gear; 74. Support block; 8. Movable assembly; 81. Limit seat; 82. Rotating shaft; 83. Movable rod; 9. Tensioning wheel; 10. Slide groove; 11. Positioning rod; 12. Anti-collision block; 13. Support frame; 14. Adjustment rod; 15. Teeth; 16. Hanging ring; 17. Counterweight. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides Figures 1 to 4A belt tensioning device is shown, comprising a base 1, two groups of support bases 2 are arranged at both ends of the base 1, a driving shaft 3 and a transmission shaft 4 are respectively installed on the support base 2, a transmission assembly 5 is fixedly connected to the surfaces of both ends of the driving shaft 3 and the transmission shaft 4, a stepping motor 6 is fixedly connected to one end of the transmission shaft 4, an adjusting mechanism 7 is arranged at the center of the surface of the base 1, a movable assembly 8 is installed on the adjusting mechanism 7, a tensioning wheel 9 is installed on the top of the movable assembly 8, the surface of the tensioning wheel 9 is in contact with the transmission assembly 5, and the adjusting mechanism 7 can drive the movable assembly 8 to be adjusted, so that the movable assembly 8 drives the tensioning wheel 9 to adjust its position on the belt 53, thereby realizing the adjustment of the tension of the belt 53, avoiding the separation between the belt 53 and the belt 53 wheel, improving the transmission effect of the belt 53, and reducing the influence on the normal operation of the equipment.

[0023] The movable component 8 includes a limit seat 81, which is arranged between the two groups of support seats 2. The opposite side of the limit seat 81 is movably connected with a rotating shaft 82, and both ends of the rotating shaft 82 are fixedly connected with movable rods 83. The top of the movable rod 83 is movably connected to the tensioning wheel 9, and the inner cavity of the adjusting mechanism 7 is fixedly connected to the surface of the rotating shaft 82. Through the cooperation of the set limit seat 81, the rotating shaft 82 and the movable rod 83, the operation of the adjusting mechanism 7 can be connected with the tensioning wheel 9 to provide a movable support function, so that the adjusting mechanism 7 can adjust the position of the tensioning wheel 9.

[0024] The transmission assembly 5 includes a driving pulley 51 and a driven pulley 52. ​​The driving pulley 51 is installed on the rotating shaft, and the driven pulley 52 is installed on the driven shaft. The driving pulley 51 and the driven pulley 52 are connected through a belt 53. The tensioning wheel 9 is in contact with the surface of the belt 53. Through the cooperation of the set belt 53, the driving pulley 51 and the driven pulley 52, the equipment is transmitted, and the tension of the belt 53 can be conveniently adjusted.

[0025] The adjusting mechanism 7 comprises an electric push rod 71, which is mounted on the base 1. The piston rod of the electric push rod 71 is fixedly connected to a rack plate 72, on which a gear 73 is meshed. The inner cavity of the gear 73 is fixedly connected to the rotating shaft 82. A support block 74 is provided at the bottom end of the rack plate 72. The support block 74 is slidably connected to the base 1. The driving force is provided by the electric push rod 71. The rack plate 72 cooperates with the gear 73. When the electric push rod 71 pushes the rack plate 72, the rotating shaft 82 can be driven to rotate. Therefore, the rotation can drive the position of the movable rod 83 to achieve a swinging effect, thereby adjusting the position of the tensioning wheel 9 and realizing the tension adjustment of the belt 53.

[0026] A slide groove 10 is provided at a position corresponding to the support block 74 on the base 1. The support block 74 is slidably connected in the inner cavity of the slide groove 10. A positioning rod 11 is fixedly connected inside the slide groove 10. The support block 74 is slidably connected on the surface of the positioning rod 11. Through the cooperation of the set slide groove 10, the support block 74 and the positioning rod 11, stability can be provided to the moving rack plate 72.

[0027] The limit seat 81 is provided with a groove, and one end of the movable rod 83 passes through the groove of the limit seat 81 and is fixedly connected to the rotating shaft 82. The provided groove can control the swing range of the movable rod 83 to avoid collision between the active pulley 51 and the driven pulley 52 on both sides when the movable rod 83 drives the tensioning wheel 9 to adjust.

[0028] An anti-collision block 12 is bonded in the groove of the limiting seat 81 , and the anti-collision block 12 fits with the movable rod 83 . The anti-collision block 12 can prevent the movable rod 83 from colliding with the limiting seat 81 .

[0029] The base 1 is fixedly connected with a support frame 13 at one end close to the driven shaft, and an adjusting rod 14 is movably connected to the support frame 13. A tooth 15 is provided on the lower surface of one end of the adjusting rod 14, and the position of the tooth 15 of the adjusting rod 14 is pressed against the surface of the tensioning wheel 9. The end of the adjusting rod 14 away from the support frame 13 is fixedly connected with a hanging ring 16, and a counterweight block 17 is provided on the hanging ring 16 through a pull rope. The support frame 13 can provide a limiting activity for the adjusting rod 14, so that the adjusting rod 14 applies pressure to the surface of the tensioning wheel 9 under the pressure provided by the counterweight block 17, so that the position of the tensioning wheel 9 on the belt 53 can be moved, and the adjustment effect of the tension of the belt 53 can also be achieved. At the same time, the tooth 15 provided can increase the friction force of the contact between the adjusting rod 14 and the tensioning wheel 9. The staff can select counterweight blocks 17 of different weights according to actual conditions, so as to adjust the position of the tensioning wheel 9 differently, so as to achieve the purpose of adjusting the tensioning force. It can be used alternately with the adjusting mechanism 7, so that the tensioning adjustment of the belt 53 has a dual adjustment effect.

[0030] When in use, first, the driving force is provided by the electric push rod 71 in the adjusting mechanism 7, and the rack plate 72 cooperates with the gear 73, so that when the electric push rod 71 pushes the rack plate 72, the rotating shaft 82 can be driven to rotate. Therefore, the rotation can drive the position of the movable rod 83 to achieve a swinging effect, thereby adjusting the position of the tensioning wheel 9 and realizing the tensioning adjustment of the belt 53. Secondly, when the adjusting mechanism 7 stops operating, the support frame 13 can provide a limiting activity for the adjusting rod 14, so that the adjusting rod 14 applies pressure to the surface of the tensioning wheel 9 under the pressure provided by the counterweight block 17, so that the position of the tensioning wheel 9 on the belt 53 can be moved, and the tensioning effect of the belt 53 can also be adjusted. At the same time, the teeth 15 provided can increase the contact friction between the adjusting rod 14 and the tensioning wheel 9. The staff can select counterweight blocks 17 of different weights according to the actual situation, so as to adjust the position of the tensioning wheel 9 differently, so as to achieve the purpose of adjusting the tensioning force. It can be used alternately with the adjusting mechanism 7, so that the tensioning adjustment of the belt 53 has a dual adjustment effect.

[0031] 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, characterized in that: include: Base (1); Two groups of support seats (2) are arranged at both ends of the base (1), and a driving shaft (3) and a transmission shaft (4) are respectively installed on the two groups of support seats (2). The surfaces of both ends of the driving shaft (3) and the transmission shaft (4) are fixedly connected with a transmission assembly (5), and one end of the transmission shaft (4) is fixedly connected with a stepping motor (6); An adjusting mechanism (7) is arranged at the center of the surface of the base (1), a movable component (8) is installed on the adjusting mechanism (7), a tensioning wheel (9) is installed on the top of the movable component (8), and the surface of the tensioning wheel (9) is in contact with the transmission component (5).

2. A belt tensioning device according to claim 1, characterized in that: The movable assembly (8) comprises a limit seat (81), wherein the limit seat (81) is arranged between the two groups of support seats (2), and a rotating shaft (82) is movably connected to the opposite side of the limit seat (81), and movable rods (83) are fixedly connected to both ends of the rotating shaft (82), and the top of the movable rod (83) is movably connected to the tensioning wheel (9), and the inner cavity of the adjustment mechanism (7) is fixedly connected to the surface of the rotating shaft (82).

3. A belt tensioning device according to claim 1, characterized in that: The transmission assembly (5) comprises a driving pulley (51) and a driven pulley (52), wherein the driving pulley (51) is mounted on a rotating shaft, and the driven pulley (52) is mounted on a driven shaft, and the driving pulley (51) and the driven pulley (52) are connected to each other via a belt (53), and the tensioning wheel (9) is in contact with the surface of the belt (53).

4. A belt tensioning device according to claim 2, characterized in that: The adjustment mechanism (7) comprises an electric push rod (71), the electric push rod (71) is mounted on the base (1), the piston rod of the electric push rod (71) is fixedly connected to a rack plate (72), a gear (73) is meshed on the rack plate (72), the inner cavity of the gear (73) is fixedly connected to the rotating shaft (82), and a support block (74) is provided at the bottom end of the rack plate (72), and the support block (74) is slidably connected to the base (1).

5. A belt tensioning device according to claim 3, characterized in that: A slide groove (10) is provided on the base (1) at a position corresponding to the support block (74); the support block (74) is slidably connected to the inner cavity of the slide groove (10); a positioning rod (11) is fixedly connected to the inside of the slide groove (10); and the support block (74) is slidably connected to the surface of the positioning rod (11).

6. A belt tensioning device according to claim 2, characterized in that: The limiting seat (81) is provided with a groove, and one end of the movable rod (83) passes through the groove of the limiting seat (81) and is fixedly connected to the rotating shaft (82).

7. A belt tensioning device according to claim 2, characterized in that: An anti-collision block (12) is bonded in the groove of the limiting seat (81), and the anti-collision block (12) is fitted with the movable rod (83).

8. A belt tensioning device according to claim 1, characterized in that: A support frame (13) is fixedly connected to one end of the base (1) close to the driven shaft, an adjusting rod (14) is movably connected to the supporting frame (13), teeth (15) are arranged on the lower surface of one end of the adjusting rod (14), the position of the teeth (15) of the adjusting rod (14) is pressed against the surface of the tensioning wheel (9), and a hanging ring (16) is fixedly connected to one end of the adjusting rod (14) away from the supporting frame (13), and a counterweight (17) is arranged on the hanging ring (16) via a pull rope.

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