Anti-loosening tensioning wheel

Abstract

The utility model relates to the technical field of tensioning wheels, and discloses an anti-loosening tensioning wheel which comprises a connecting plate and a positioning plate rotating on one side of the connecting plate, sliding cavities are formed in the two ends of the positioning plate, adjusting plates are connected into the sliding cavities in a sliding mode, a tensioning wheel body is installed on the adjusting plates, symmetrical cavities are formed in one side of the positioning plate, and the positioning plate is connected with the adjusting plates in a sliding mode. The bottom of the inner wall of the cavity is fixedly connected with a spring, and the other end of the spring is fixedly connected with a moving plate; according to the anti-loosening tensioning wheel, a limiting block on a movable plate can be separated from a limiting groove in an adjusting plate by pressing a button, then the adjusting plate can slide to adjust the axle distance of the two tensioning wheel bodies, in this way, the axle distance of the tensioning wheel can be adjusted more conveniently, and after the axle distance is adjusted, the button is loosened, and the tensioning wheel is loosened. And after the limiting block on the movable plate is clamped with the limiting groove, the button is fixed through the limiting assembly, so that the tensioning wheel is higher in stability during operation, and the tensioning wheel is effectively prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of tension wheels, in particular to a tension wheel for preventing loosening. Background Art

[0002] The tension wheel assembly is a common tensioning device in the working process of the conveyor belt. During the production of the equipment, due to the long-term use of the conveyor belt, the tension of the conveyor belt becomes larger, the belt is gradually stretched, and the tension wheel 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 rotational speeds of the driving wheel and the driven wheel to be mismatched, seriously affecting the conveying accuracy and indirectly reducing the production efficiency. In the prior art, the existing tension wheel assemblies are fixedly connected during installation, and the angle of the tension wheel assembly relative to the fixed frame and the wheelbase in the same group of tension wheels are not adjustable. Once the conveyor belt shows a creep phenomenon, it is extremely easy to cause the conveyor belt to slip and fail. Since the tension wheel assembly is fixed, it is not easy to disassemble, and only the conveyor belt can be replaced, reducing the service life of the conveyor belt and increasing the cost. Or, in order to save the use cost of the conveyor belt, the working parameters of the tension wheel assembly are adjusted manually by disassembly. This work takes about 8-10 hours, and the tension wheel also needs to be replaced and repositioned and fixed, which is very time-consuming and laborious, seriously affecting the work efficiency.

[0003] In the prior art, as disclosed in the patent No. CN215487479U, an adjustable tension wheel assembly is proposed. This technical solution relates to an adjustable tension wheel assembly, belonging to the technical field of tension wheels. In order to solve the problem that the time used in the process of manually disassembling and adjusting the working parameters of the tension wheel assembly in the prior art is relatively long, time-consuming and laborious, seriously affecting the work efficiency, the utility model provides an adjustable tension wheel assembly, which includes a connecting plate, a fixing block, a positioning plate, a locking nut, two tension wheel units and two bolt-nut assemblies. One end of the fixing block is fixedly connected to one side of the connecting plate. The positioning plate is arranged at the other end of the fixing block. The positioning plate is parallel to the connecting plate and is rotatably connected to the fixing block. The positioning plate is locked and fixed to the fixing block through the locking nut. The two tension wheel units are oppositely arranged at both ends of the positioning plate, and each tension wheel unit is slidably connected to the positioning plate. Each tension wheel unit is locked and fixed to the positioning plate through a bolt-nut assembly.

[0004] However, during the use of the tension wheel in the prior art solution, when the staff adjusts the distance between the two tension wheels, they need to use tools to rotate the nut to loosen the bolt before adjusting the distance between the tension wheels. This makes the use of the tension wheel relatively inconvenient. Moreover, after the distance between the tension wheels is adjusted appropriately, when the staff tightens the nut so that one end of the bolt abuts against the adjusting plate, the fixing effect on the adjusting plate is poor, so that the tension wheel may loosen during use.

[0005] To solve the above problems, a tensioner that prevents loosening is proposed in this application. Utility Model Content

[0006] The purpose of this utility model is to provide a tensioner that prevents loosening, mainly used to solve the problem that during the use of the existing tensioner, staff need to use tools to adjust the spacing of the tensioner, making the use of the tensioner relatively inconvenient. Moreover, after tightening the nut so that one end of the bolt abuts against the adjusting plate, the fixing effect on the adjusting plate is relatively poor, resulting in the problem that the tensioner may become loose during use.

[0007] To solve the above technical problems, the present utility model provides the following technical solutions:

[0008] A tensioner that prevents loosening, including a connecting plate and a positioning plate that rotates on one side of the connecting plate. Both ends of the positioning plate are provided with sliding cavities, and adjusting plates are slidably connected inside the sliding cavities. A tensioner body is installed on the adjusting plate. A symmetrical cavity is provided on one side of the positioning plate. A spring is fixedly connected to the bottom of the inner wall of the cavity, and the other end of the spring is fixedly connected to a moving plate. A limiting block is fixedly connected to the side of the moving plate away from the spring. A plurality of limiting grooves matching the limiting blocks are provided on one side of the adjusting plate. Symmetrical connecting blocks are fixedly connected to one side of the moving plate, and a button is fixedly connected to the end of the connecting block away from the moving plate. The end of the button away from the connecting block extends out of the positioning plate, and a limiting component is provided on the positioning plate on the side of the button.

[0009] Working principle and beneficial effects of the present utility model:

[0010] 1. Working principle: During the operation of the tensioner, when the conveyor belt shows creep phenomenon, first stop the machine, remove the conveyor belt from the tensioner assembly, and then press the button to push the moving plate into the cavity through the connecting block, while compressing the spring and making it in a compressed state. When the limiting block on the moving plate disengages from the limiting groove on the adjusting plate, the adjusting plate can be slid, thereby realizing the adjustment of the axial distance between the two tensioner bodies. After adjusting the axial distance, release the button, and the moving plate will move towards the adjusting plate under the action of the spring. When the limiting block on the moving plate is engaged with the limiting groove on the adjusting plate, it can play a better fixing role on the adjusting plate, and then fix the button through the limiting component, and the tensioner can be used normally.

[0011] 2. Beneficial effects: By pressing the button, the limiting block on the moving plate can be disengaged from the limiting groove on the adjusting plate, and then the adjusting plate can be slid to realize the adjustment of the axial distance between the two tensioner bodies. This can make the adjustment of the axial distance of the tensioner more convenient. After adjusting the axial distance, release the button. After the limiting block on the moving plate is engaged with the limiting groove, fix the button through the limiting component. This can make the tensioner more stable during operation and effectively prevent the tensioner from loosening.

[0012] Preferably, the limiting component includes a limiting plate slidably connected to one side of the button on the positioning plate. A pair of symmetric T-shaped blocks are fixedly connected to one side of the limiting plate. T-shaped grooves matching the T-shaped blocks are formed on the positioning plate. A slot matching the limiting plate is formed on the button. A bolt passes through the limiting plate and is threadedly connected to the limiting plate. One end of the bolt is fixedly connected to a knob. After the axial distance between the two tension pulley bodies is adjusted, move the limiting plate towards the button. When the limiting plate is inserted into the slot on the button, tighten the bolt so that one end of it abuts against the positioning plate, which can play a good fixing role for the button, thus effectively preventing people from accidentally touching the button during the operation of the tension pulley, resulting in the loosening of the tension pulley, and making the operation of the tension pulley more stable.

[0013] Preferably, the number of springs inside the cavity is multiple, and the springs are equidistantly distributed in a linear array inside the cavity. By setting the number of springs inside the cavity to be multiple, the multiple springs can exert a greater thrust on the moving plate, so that when the limiting block on the moving plate is engaged with the limiting groove, a better fixing effect can be achieved on the adjusting plate.

[0014] Preferably, sliders are fixedly connected to the bottoms of both sides of the adjusting plate. Sliding grooves matching the sliders are formed on the inner wall of the sliding cavity. When the adjusting plate slides inside the sliding cavity, the sliders arranged on both sides of the adjusting plate and the sliding grooves formed on the inner wall of the sliding cavity can play a good role in limiting and guiding the adjusting plate. In this way, not only can the sliding stability of the adjusting plate be higher, but also the adjusting plate can be effectively prevented from detaching from the positioning plate.

[0015] Preferably, the number of limiting blocks on the moving plate is multiple, and the limiting blocks are equidistantly distributed in a linear array on one side of the moving plate. By setting the number of limiting blocks on the moving plate to be multiple, when multiple limiting blocks are all engaged with the limiting grooves on the adjusting plate, a better fixing effect can be achieved on the adjusting plate, thus making the operation of the tension pulley more stable.

[0016] Preferably, a plurality of balls are rotatably connected to the side of the slider away from the adjusting plate, and the balls are equidistantly distributed in a linear array on the slider. When the adjusting plate slides inside the sliding cavity, the slider will slide inside the sliding groove. Through the plurality of balls arranged on one side of the slider, the friction between the slider and the inner wall of the sliding groove can be effectively reduced, so that it is easier and more labor-saving for people to slide the adjusting plate.

[0017] Preferably, the knob is in the shape of a plum blossom, and an anti-slip sleeve is sleeved on the outer wall of the knob. By setting the shape of the knob to be a plum blossom, it is easier and more labor-saving for people to turn the knob. Through the anti-slip sleeve sleeved on the outer wall of the knob, the friction between people's hands and the knob can be increased, thus effectively preventing people from slipping when turning the knob. Description of the Drawings

[0018] Figure 1 Schematic diagram of the overall three-dimensional structure of the present utility model;

[0019] Figure 2 Schematic diagram of the overall side-sectional structure of the present utility model;

[0020] Figure 3 Schematic diagram of the overall top-sectional structure of the present utility model;

[0021] Figure 4 Schematic diagram of the overall structure of the adjusting plate of the present utility model;

[0022] Figure 5 Schematic diagram of the overall structure of the moving plate of the present utility model;

[0023] Figure 6 of the present utility model Figure 2 Enlarged schematic diagram of part A in the present utility model.

[0024] In the figure: 1, connecting plate; 2, positioning plate; 3, sliding cavity; 4, adjusting plate; 5, body of the tension pulley; 6, cavity; 7, spring; 8, moving plate; 9, connecting block; 10, button; 11, limiting block; 12, limiting groove; 13, limiting plate; 14, T-shaped block; 15, T-shaped groove; 16, slot; 17, bolt; 18, knob; 19, slider; 20, chute; 21, ball. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-6, A tension pulley for preventing loosening, comprising a connecting plate 1 and a positioning plate 2 rotatably connected to one side of the connecting plate 1. Both ends of the positioning plate 2 are provided with sliding cavities 3, and adjusting plates 4 are slidably connected inside the sliding cavities 3. At the bottom of both sides of the adjusting plate 4, sliders 19 are fixedly connected. Inside the inner wall of the sliding cavity 3, chutes 20 matching the sliders 19 are provided, which can play a good role in limiting and guiding the adjusting plate 4. In this way, not only can the adjusting plate 4 have higher stability when sliding, but also the adjusting plate 4 can be effectively prevented from detaching from the positioning plate 2. On the side of the slider 19 away from the adjusting plate 4, a plurality of balls 21 are rotatably connected, and the balls 21 are linearly arrayed and evenly distributed on the slider 19, which can effectively reduce the friction between the slider 19 and the inner wall of the chute 20. In this way, it can make it easier and more labor-saving for people to slide the adjusting plate 4. A tension pulley body 5 is installed on the adjusting plate 4. On one side of the positioning plate 2, symmetric cavities 6 are provided. At the bottom of the inner wall of the cavity 6, a plurality of springs 7 are fixedly connected. The other end of the spring 7 is fixedly connected to a moving plate 8. On the side of the moving plate 8 away from the spring 7, a plurality of limiting blocks 11 are fixedly connected. On one side of the adjusting plate 4, a plurality of limiting grooves 12 matching the limiting blocks 11 are provided. On one side of the moving plate 8, symmetric connecting blocks 9 are fixedly connected. At the end of the connecting block 9 away from the moving plate 8, a button 10 is fixedly connected. The end of the button 10 away from the connecting block 9 extends out of the positioning plate 2. Pressing the button 10 can push the moving plate 8 into the cavity 6 through the connecting block 9, while compressing the spring 7 and making it in a compressed state. When the limiting blocks 11 on the moving plate 8 disengage from the limiting grooves 12 on the adjusting plate 4, the adjusting plate 4 can be slid, so as to realize the adjustment of the wheelbase of the two tension pulley bodies 5. After adjusting the wheelbase, release the button 10, and the moving plate 8 will move towards the adjusting plate 4 under the action of the spring 7. When the limiting blocks 11 on the moving plate 8 are clamped with the limiting grooves 12 on the adjusting plate 4, a good fixing effect can be achieved on the adjusting plate 4. On the positioning plate 2, a limiting component is provided on the side of the button 10 to fix the button 10, which can make the tension pulley operate more stably and effectively prevent the tension pulley from loosening.

[0027] Such as Figure 2 And Figure 6As shown in the figure, the limiting component includes a limiting plate 13 which is slidably connected to one side of the button 10 on the positioning plate 2. Symmetrical T-shaped blocks 14 are fixedly connected to one side of the limiting plate 13. T-shaped grooves 15 matching the T-shaped blocks 14 are formed on the positioning plate 2. A slot 16 matching the limiting plate 13 is formed on the button 10. A bolt 17 passes through the limiting plate 13, and the bolt 17 is threadedly connected to the limiting plate 13. One end of the bolt 17 is fixedly connected to a knob 18. The shape of the knob 18 is set as a plum blossom shape, which can make it easier and more labor-saving for people to turn the knob 18. An anti-slip sleeve is sleeved on the outer wall of the knob 18, which can increase the friction between people's hands and the knob 18, thus effectively preventing people from slipping when turning the knob 18. After the axial distance between the two tension pulley bodies 5 is adjusted, move the limiting plate 13 towards the button 10. When the limiting plate 13 is inserted into the slot 16 on the button 10, tighten the bolt 17 so that one end of it abuts against the positioning plate 2, which can play a good fixing role for the button 10, thus effectively preventing people from accidentally touching the button 10 during the operation of the tension pulley, resulting in the loosening of the tension pulley, and making the operation of the tension pulley more stable.

[0028] As can be seen from the above, the specific implementation manner of the present utility model is as follows:

[0029] During the operation of the tension pulley, when the conveyor belt shows a creep phenomenon, first stop the machine, remove the conveyor belt from the tension pulley assembly, and then press the button 10 to push the moving plate 8 into the cavity 6 through the connecting block 9, while compressing the spring 7 and making it in a compressed state. When the limiting block 11 on the moving plate 8 disengages from the limiting groove 12 on the adjusting plate 4, the adjusting plate 4 can be slid, so as to realize the adjustment of the axial distance between the two tension pulley bodies 5. After adjusting the axial distance, release the button 10, and the moving plate 8 will move towards the adjusting plate 4 under the action of the spring 7. When the limiting block 11 on the moving plate 8 is clamped with the limiting groove 12 on the adjusting plate 4, a good fixing effect can be achieved on the adjusting plate 4. Then move the limiting plate 13 towards the button 10. When the limiting plate 13 is inserted into the slot 16 on the button 10, tighten the bolt 17 so that one end of it abuts against the positioning plate 2, which can play a good fixing role for the button 10, thus effectively preventing people from accidentally touching the button 10 during the operation of the tension pulley, resulting in the loosening of the tension pulley, and making the operation of the tension pulley more stable.

[0030] The above are only the preferred embodiments of the present utility model, and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An anti-loosening tension wheel, comprising a connecting plate (1) and a positioning plate (2) rotating on one side of the connecting plate (1), characterized in that: Both ends of the positioning plate (2) are provided with sliding cavities (3), and the interior of the sliding cavities (3) is slidably connected with an adjustment plate (4), and a tension wheel body (5) is installed on the adjustment plate (4). A symmetrical cavity (6) is provided on one side of the positioning plate (2), and a spring (7) is fixedly connected to the bottom of the inner wall of the cavity (6), and the other end of the spring (7) is fixedly connected to a moving plate (8), and the side of the moving plate (8) away from the spring (7) is fixedly connected to a limiting block (11), and a plurality of limiting grooves (12) matching the limiting block (11) are provided on one side of the adjustment plate (4), and a symmetrical connecting block (9) is fixedly connected to one side of the moving plate (8), and a button (10) is fixedly connected to the end of the connecting block (9) away from the moving plate (8), and the end of the button (10) away from the connecting block (9) extends out of the positioning plate (2), and a limiting component is provided on one side of the positioning plate (2) located at the button (10).

2. The anti-loosening tension wheel according to claim 1, characterized in that: The limiting assembly comprises a limiting plate (13) on the positioning plate (2) and slidably connected to one side of the button (10); a symmetrical T-shaped block (14) is fixedly connected to one side of the limiting plate (13); a T-shaped slot (15) matching the T-shaped block (14) is provided on the positioning plate (2); a slot (16) matching the limiting plate (13) is provided on the button (10); a bolt (17) passes through the limiting plate (13); the bolt (17) is threadedly connected to the limiting plate (13); and a knob (18) is fixedly connected to one end of the bolt (17).

3. The anti-loosening tension wheel according to claim 1, characterized in that: There are a plurality of springs (7) inside the cavity (6), and the springs (7) are evenly distributed in a linear array inside the cavity (6).

4. The anti-loosening tension wheel according to claim 1, characterized in that: The bottoms of both sides of the adjustment plate (4) are fixedly connected with sliding blocks (19), and the inner wall of the sliding cavity (3) is provided with sliding grooves (20) matching the sliding blocks (19).

5. The anti-loosening tension wheel according to claim 1, characterized in that: The number of upper limit blocks (11) of the movable plate (8) is multiple, and the limit blocks (11) are distributed in a linear array at equal intervals on one side of the movable plate (8).

6. The anti-loosening tension wheel according to claim 4, characterized in that: A plurality of balls (21) are rotatably connected to one side of the slider (19) away from the adjustment plate (4), and the balls (21) are evenly distributed on the slider (19) in a linear array.

7. The anti-loosening tension wheel according to claim 2, characterized in that: The shape of the knob (18) is a plum blossom shape, and the outer wall of the knob (18) is provided with an anti-slip sleeve.

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