Adjustable tensioning wheel

Abstract

The utility model relates to the technical field of tensioning wheels, and discloses an adjustable tensioning wheel which comprises a connecting plate, one side of the connecting plate is fixedly connected with a fixing shaft, the outer wall of the fixing shaft is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a positioning plate, and one side of the connecting plate is fixedly connected with an adjusting assembly above the rotating shaft. A cavity is formed in the positioning plate, symmetrical adjusting plates are slidably connected to the interior of the cavity, one end of each adjusting plate extends out of the positioning plate and is provided with a tensioning wheel body, and a driving assembly is rotationally connected to the interior of the cavity; according to the adjustable tensioning wheel, when a worker needs to adjust the axle distance of the tensioning wheel, the two adjusting plates on the positioning plate can drive the tensioning wheel body to slide at the same time through operation of the driving assembly in the cavity, in this way, the axle distance of the tensioning wheel can be adjusted more conveniently, and the gravity center of the tensioning wheel cannot be changed all the time; and therefore, the stability of the tensioning wheel during operation is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioning wheels, in particular to an adjustable tensioning wheel. Background Art

[0002] The tensioner assembly is a common tensioning device in the operation of conveyor belts. During long-term use of the conveyor belt during production, the tension of the conveyor belt increases, and the belt is gradually stretched. However, the tensioner cannot adjust the tension of the conveyor belt and cannot adapt to the creep phenomenon of the conveyor belt. As a result, the conveyor belt slips, which causes the speed of the driving pulley and the speed of the driven pulley to mismatch, seriously affecting the transmission accuracy and indirectly reducing production efficiency. Existing tensioner assemblies are fixed during installation, and the angle of the tensioner assembly relative to the fixed frame and the wheelbase of the same tensioner group are not adjustable. Once the conveyor belt creep phenomenon occurs, it is very easy to cause the conveyor belt to slip and fail. Since the tensioner assembly is fixed, it is not easy to disassemble, and the conveyor belt can only be replaced, which shortens the service life of the conveyor belt and increases the cost. Alternatively, in order to save the cost of the transmission belt, the working parameters of the tensioner assembly must be manually disassembled and adjusted. This work takes about 8-10 hours, and the tensioner must be replaced and repositioned, which is very time-consuming and labor-intensive, seriously affecting work efficiency.

[0003] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut.

[0004] However, when using the tensioning pulley of the prior art solution, when adjusting the distance between the two tensioning pulleys, the staff needs to use a tool to turn the nut to loosen the bolt and then adjust the position of the two adjustment plates respectively to adjust the wheelbase of the two tensioning pulleys. This not only makes it inconvenient to adjust the wheelbase of the tensioning pulleys, but also easily causes the center of gravity of the two tensioning pulleys to change, thereby affecting the stability of the tensioning pulley operation.

[0005] In order to solve the above problems, this application proposes an adjustable tensioning wheel. Utility Model Content

[0006] The utility model is intended to provide an adjustable tensioning pulley, which is mainly used to solve the problem that during the use of the existing tensioning pulley, it is necessary to use a tool to turn the nut to loosen the bolt and then adjust the positions of the two adjustment plates respectively to achieve the adjustment of the wheelbase of the two tensioning pulleys. This not only makes the adjustment of the wheelbase of the tensioning pulley more inconvenient, but also easily causes the center of gravity of the two tensioning pulleys to change, thereby affecting the stability of the tensioning pulley during operation.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] An adjustable tensioning wheel comprises a connecting plate, one side of the connecting plate is fixedly connected to a fixed shaft, the outer wall of the fixed shaft is rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a positioning plate, one side of the connecting plate is located above the rotating shaft and is fixedly connected to an adjustment component, a cavity is opened inside the positioning plate, a symmetrical adjusting plate is slidably connected inside the cavity, one end of the adjusting plate extends out of the positioning plate and is installed with a tensioning wheel body, and the interior of the cavity is rotatably connected to a driving component.

[0009] The working principle and beneficial effects of this utility model:

[0010] 1. Working principle: During the operation of the tensioner, when the conveyor belt creeps, first stop the machine and remove the conveyor belt from the tensioner assembly. The driving assembly inside the cavity can make the two adjustment plates on the positioning plate drive the tensioner body to slide at the same time. When the wheelbase of the two tensioner bodies is appropriate, the angle of the positioning plate can be adjusted through the adjustment assembly. After the angle of the positioning plate is adjusted, the conveyor belt is installed on the tensioner body, and the tensioner can operate normally.

[0011] 2. Beneficial effect: When the staff needs to adjust the wheelbase of the tensioning wheel, the two adjustment plates on the positioning plate can drive the tensioning wheel body to slide simultaneously through the operation of the driving component inside the cavity. This not only makes the adjustment of the wheelbase of the tensioning wheel more convenient, but also does not change the center of gravity of the tensioning wheel, thereby making the tensioning wheel more stable during operation.

[0012] Preferably, the adjustment component includes an arc plate fixedly connected to the top of the rotating shaft on one side of the connecting plate, a limiting bolt passes through the arc plate, and the limiting bolt is threadedly connected to the arc plate, and a plurality of limiting grooves matching the limiting bolts are provided on the outer wall of the rotating shaft, and the limiting grooves are equidistantly distributed in a circular array on the outer wall of the rotating shaft. When adjusting the angle of the positioning plate, the limiting bolt is rotated so that its lower end disengages from the limiting groove on the rotating shaft, and the positioning plate can be rotated to adjust the angle. After the angle of the positioning plate is adjusted to an appropriate level, the limiting bolt is tightened so that its lower end is inserted into the limiting groove, the rotating shaft can be fixed, and the tensioning wheel can be used normally.

[0013] Preferably, the driving assembly includes a gear rotatably connected to one side of the inner wall of the cavity, and the adjusting plate is fixedly connected to a rack at one end located inside the cavity, and the rack is meshed with the gear, and a recessed groove matching the rack is provided on the adjusting plate. A connecting shaft is fixedly connected to the axis center of one side of the gear, and the other end of the connecting shaft extends out of the positioning plate and is fixedly connected to a handle, and the connecting shaft is rotatably connected to the positioning plate, and a limiting assembly is fixedly connected to one side of the handle on the positioning plate. When the staff needs to adjust the wheelbase of the tensioning wheel, the handle can be turned to drive the gear to rotate through the connecting shaft. At the same time as the gear rotates, the two racks meshed with them can drive the adjusting plate to rotate synchronously, thereby realizing the adjustment of the wheelbase of the tensioning wheel body on the adjusting plate. After the wheelbase of the tensioning wheel is adjusted appropriately, the handle can be fixed by the limit assembly. This not only makes the adjustment of the wheelbase of the tensioning wheel more convenient, but also makes the tensioning wheel more stable during operation.

[0014] Preferably, the limit assembly includes a fixed block fixedly connected to one side of the handle on the positioning plate, a sliding rod passes through the fixed block, one end of the sliding rod is fixedly connected to the pulling block, and the other end is fixedly connected to the inserting block, and the outer wall of the handle is provided with a plurality of slots matching the inserting blocks. After the handle is rotated to adjust the wheelbase of the two tensioning wheel bodies to an appropriate level, the pulling block can be pushed to cause the sliding rod to drive the inserting block closer to the handle. When the inserting block is inserted into the slot on the handle, the handle can be better fixed. After the pulling block is pulled to disengage the inserting block at one end of the sliding rod from the slot on the handle, the handle can be rotated to adjust the wheelbase of the tensioning wheel. This can effectively prevent people from accidentally touching the handle during the operation of the tensioning wheel, causing the tensioning wheel to loosen, thereby effectively improving the stability of the tensioning wheel during operation.

[0015] Preferably, guide blocks are fixedly connected on both sides of one end of the adjustment plate located inside the cavity, and a guide groove matching the guide block is provided on the inner wall of the cavity. When the adjustment plate slides inside the cavity, the guide block provided on the adjustment plate and the guide groove provided on the inner wall of the cavity can better limit and guide the adjustment plate. This not only makes the adjustment plate more stable when sliding inside the cavity, but also effectively prevents the adjustment plate from leaving the cavity.

[0016] Preferably, the end of the plug away from the sliding rod is fixedly connected to a magnet, and the bottom of the inner wall of the slot is fixedly connected to an iron sheet attracted to the magnet. After the plug is inserted into the slot, the magnet on the plug will be attracted to the iron sheet inside the slot, which can better fix the plug, thereby effectively preventing the plug from detaching from the slot during the operation of the tensioning wheel, thereby making the tensioning wheel more stable during operation.

[0017] Preferably, the corners of the handle are all rounded, and the outer wall of the handle is covered with an anti-slip sleeve. By setting the corners of the handle as rounded, people's hands can be more comfortable when turning the handle. The anti-slip sleeve on the outer wall of the handle can increase the friction between people's hands and the handle, thereby effectively preventing people's hands from slipping when turning the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic side cross-sectional structural diagram of the entire utility model;

[0020] Figure 3 This is a schematic diagram of a partially enlarged cross-sectional structure of the utility model viewed from above;

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the entire utility model.

[0022] In the figure: 1. Connecting plate; 2. Fixed shaft; 3. Rotating shaft; 4. Positioning plate; 5. Cavity; 6. Adjusting plate; 7. Tensioning wheel body; 8. Gear; 9. Rack; 10. Connecting shaft; 11. Handle; 12. Arc plate; 13. Limiting bolt; 14. Limiting groove; 15. Fixed block; 16. Sliding rod; 17. Pull block; 18. Slot; 19. Guide block; 20. Guide groove; 21. Magnet; 22. Iron sheet; 23. Make way groove; 24. Insert block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4, an adjustable tensioning wheel, including a connecting plate 1, one side of the connecting plate 1 is fixedly connected to a fixed shaft 2, the outer wall of the fixed shaft 2 is rotatably connected to a rotating shaft 3, one end of the rotating shaft 3 is fixedly connected to a positioning plate 4, one side of the connecting plate 1 is fixedly connected to an adjusting component above the rotating shaft 3, and the angle of the positioning plate 4 can be adjusted by the adjusting component, and a cavity 5 is opened inside the positioning plate 4, and a symmetrical adjusting plate 6 is slidably connected inside the cavity 5. The adjusting plate 6 is located on both sides of one end of the cavity 5 and is fixedly connected to a guide block 19. The inner wall of the cavity 5 is provided with a guide groove 20 matching the guide block 19, which can better limit and guide the adjusting plate 6. The cam 6 is rotated in the direction of the rotation of the gear 7 and the gear 7 is rotated in the direction of the rotation of the gear 7. ... and the gear 7 is rotated in the direction of the rotation of the gear 7. The cam 6 is rotated in the direction of the rotation of the gear 7 and the gear 7 is rotated in the direction of the rotation of the gear 7 and the gear 7 is rotated in the direction of the rotation of the gear 7. The cam 6 is rotated in the direction of the rotation of the gear 7 and the gear 7 is rotated in the direction of the rotation of the gear 7 and the gear 7 is

[0025] like Figure 1 and Figure 2 As shown, the adjustment component includes an arc-shaped plate 12 fixedly connected to the top of the rotating shaft 3 on one side of the connecting plate 1, a limiting bolt 13 passes through the arc-shaped plate 12, and the limiting bolt 13 is threadedly connected to the arc-shaped plate 12, and a plurality of limiting grooves 14 matching the limiting bolts 13 are provided on the outer wall of the rotating shaft 3, and the limiting grooves 14 are equidistantly distributed on the outer wall of the rotating shaft 3 in a circular array. When adjusting the angle of the positioning plate 4, the limiting bolt 13 is rotated to disengage the lower end from the limiting groove 14 on the rotating shaft 3, and the positioning plate 4 can be rotated to adjust the angle. After the angle of the positioning plate 4 is adjusted to a suitable level, the limiting bolt 13 is tightened to insert the lower end into the limiting groove 14, and the rotating shaft 3 can be fixed, and the tensioning wheel can be used normally.

[0026] like Figure 2 and Figure 4As shown, the driving assembly includes a gear 8 rotatably connected to one side of the inner wall of the cavity 5, and the end of the adjustment plate 6 located inside the cavity 5 is fixedly connected to a rack 9, and the rack 9 is meshed with the gear 8. A clearance groove 23 matching the rack 9 is provided on the adjustment plate 6. A connecting shaft 10 is fixedly connected to the axis center of one side of the gear 8, and the other end of the connecting shaft 10 extends out of the positioning plate 4 and is fixedly connected to a handle 11. The corners of the handle 11 are all rounded, and the outer wall of the handle 11 is provided with an anti-slip sleeve, and the connecting shaft 10 is rotatably connected to the positioning plate 4, and the positioning A limiting assembly is fixedly connected to one side of the handle 11 on the plate 4. When the staff needs to adjust the wheelbase of the tensioning wheel, the handle 11 can be turned to drive the gear 8 to rotate through the connecting shaft 10. When the gear 8 rotates, the two racks 9 meshing with it can drive the adjusting plate 6 to rotate synchronously, thereby realizing the adjustment of the wheelbase of the tensioning wheel body 7 on the adjusting plate 6. After the wheelbase of the tensioning wheel is adjusted appropriately, the handle 11 can be fixed by the limiting assembly. This not only makes the adjustment of the wheelbase of the tensioning wheel more convenient, but also makes the tensioning wheel more stable during operation.

[0027] like Figure 3 As shown, the limit assembly includes a fixed block 15 fixedly connected to the side of the handle 11 on the positioning plate 4, a slide rod 16 passes through the fixed block 15, one end of the slide rod 16 is fixedly connected to a pull block 17, and the other end is fixedly connected to an insert block 24. The outer wall of the handle 11 is provided with a plurality of slots 18 matching the insert block 24, and the end of the insert block 24 away from the slide rod 16 is fixedly connected to a magnet 21, and the bottom of the inner wall of the slot 18 is fixedly connected to an iron sheet 22 attracted to the magnet 21. After turning the handle 11 to adjust the wheelbase of the two tensioning wheel bodies 7 to a suitable level, push the pull block 17 The slide bar 16 can drive the insert block 24 toward the handle 11. When the insert block 24 is inserted into the slot 18 on the handle 11, the magnet 21 on the insert block 24 will be attracted to the iron sheet 22 inside the slot 18, which can better fix the handle 11. After pulling the pull block 17 to disengage the insert block 24 at one end of the slide bar 16 from the slot 18 on the handle 11, the handle 11 can be rotated to adjust the wheelbase of the tensioning wheel. This can effectively prevent people from accidentally touching the handle 11 during the operation of the tensioning wheel, causing the tensioning wheel to loosen, thereby effectively improving the stability of the tensioning wheel during operation.

[0028] From the above, it can be seen that the specific implementation of the present invention is as follows:

[0029] During the operation of the tensioner, when the conveyor belt creeps, first stop the machine, remove the conveyor belt from the tensioner assembly, pull the pull block 17 to disengage the plug 24 at one end of the slide bar 16 from the slot 18 on the handle 11, and then turn the handle 11 to drive the gear 8 to rotate through the connecting shaft 10. While the gear 8 rotates, the two racks 9 meshing with it can drive the adjustment plate 6 to rotate synchronously, thereby achieving the adjustment of the wheelbase of the tensioner body 7 on the adjustment plate 6. After the wheelbase of the tensioner is adjusted appropriately, push the pull block 17 to make the slide bar 16 drive the plug 24 to approach the handle 11. When the plug 24 is inserted into the slot 1 on the handle 11, 8, the magnet 21 on the plug block 24 will be attracted to the iron sheet 22 inside the slot 18, which can better fix the handle 11. This can effectively prevent people from accidentally touching the handle 11 during the operation of the tensioning wheel, causing the tensioning wheel to loosen. By rotating the limiting bolt 13 so that its lower end is disengaged from the limiting groove 14 on the rotating shaft 3, the positioning plate 4 can be rotated to adjust the angle. After the angle of the positioning plate 4 is adjusted to a suitable level, tighten the limiting bolt 13 so that its lower end is inserted into the limiting groove 14, the rotating shaft 3 can be fixed, and then the conveyor belt can be installed on the tensioning wheel body 7. The tensioning wheel can then operate normally, and the tensioning wheel has higher stability during operation.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An adjustable tensioning wheel, comprising a connecting plate (1), characterized in that: One side of the connecting plate (1) is fixedly connected to a fixed shaft (2), an outer wall of the fixed shaft (2) is rotatably connected to a rotating shaft (3), one end of the rotating shaft (3) is fixedly connected to a positioning plate (4), one side of the connecting plate (1) is located above the rotating shaft (3) and is fixedly connected to an adjustment component, a cavity (5) is provided inside the positioning plate (4), a symmetrical adjustment plate (6) is slidably connected inside the cavity (5), one end of the adjustment plate (6) extends out of the positioning plate (4) and is installed with a tensioning wheel body (7), and the cavity (5) is rotatably connected to a driving component.

2. The adjustable tensioning pulley according to claim 1, characterized in that: The adjustment component comprises an arc-shaped plate (12) fixedly connected to the top of the rotating shaft (3) on one side of the connecting plate (1), a limiting bolt (13) passing through the arc-shaped plate (12), and the limiting bolt (13) is threadedly connected to the arc-shaped plate (12), and the outer wall of the rotating shaft (3) is provided with a plurality of limiting grooves (14) matching the limiting bolts (13), and the limiting grooves (14) are evenly distributed on the outer wall of the rotating shaft (3) in a circular array.

3. The adjustable tensioning pulley according to claim 1, characterized in that: The driving assembly comprises a gear (8) rotatably connected to one side of the inner wall of the cavity (5); one end of the adjustment plate (6) located inside the cavity (5) is fixedly connected to a rack (9), and the rack (9) is meshed with the gear (8); a clearance groove (23) matching the rack (9) is provided on the adjustment plate (6); a connecting shaft (10) is fixedly connected to the axis center of one side of the gear (8); the other end of the connecting shaft (10) extends out of the positioning plate (4) and is fixedly connected to a handle (11), and the connecting shaft (10) is rotatably connected to the positioning plate (4); and a limiting assembly is fixedly connected to one side of the handle (11) on the positioning plate (4).

4. The adjustable tensioning pulley according to claim 3, characterized in that: The limiting assembly includes a fixed block (15) fixedly connected to one side of the handle (11) on the positioning plate (4), a sliding rod (16) passing through the fixed block (15), one end of the sliding rod (16) is fixedly connected to a pulling block (17), and the other end is fixedly connected to an inserting block (24), and the outer wall of the handle (11) is provided with a plurality of slots (18) matching the inserting blocks (24).

5. The adjustable tensioning pulley according to claim 1, characterized in that: The adjusting plate (6) is located at one end inside the cavity (5), and both sides thereof are fixedly connected with guide blocks (19). The inner wall of the cavity (5) is provided with a guide groove (20) matching the guide block (19).

6. The adjustable tensioning pulley according to claim 4, characterized in that: One end of the insert block (24) away from the slide bar (16) is fixedly connected with a magnet (21), and the bottom of the inner wall of the slot (18) is fixedly connected with an iron sheet (22) attracted to the magnet (21).

7. The adjustable tensioning pulley according to claim 3, characterized in that: The corners of the handle (11) are all rounded, and the outer wall of the handle (11) is provided with an anti-slip cover.

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