A tensioning wheel to prevent loosening

Abstract

This utility model discloses an anti-loosening tension wheel, specifically relating to the field of tension wheel technology. It includes a support frame, with an anti-loosening adjustment and protection device for the tension wheel at its front end. This device comprises a telescopic adjustment component and a tension anti-loosening component. Compared to existing technologies, this utility model improves ease of use and continuous production line operation capabilities through an anti-loosening tension wheel. Coarse and fine adjustments are separated: after the electric hydraulic cylinder completes the coarse adjustment positioning, the first and second electric actuators only require a small stroke to achieve fine tension adjustment, reducing energy consumption and mechanical wear, and extending the device's lifespan. The overall structure is integrated into the front end of the support frame, forming a modular unit that can directly replace traditional single-wheel or old double-wheel tensioning mechanisms without altering the original transmission layout, demonstrating excellent versatility and practical value.

Description

Technical Field

[0001] This utility model relates to the field of tensioning wheel technology, and more specifically, to a tensioning wheel that prevents loosening. Background Technology

[0002] In traditional belt drive systems, single-pull oscillation or spring-loaded structures are limited by space constraints and can only compensate in a single arc direction. If the belt simultaneously elongates vertically and shifts horizontally, the traditional tensioner cannot respond synchronously, leading to a sudden drop in local contact pressure, tooth skipping and uneven wear between the belt teeth and pulley grooves, ultimately causing transmission failure. Furthermore, existing dual-pull solutions require complete belt removal to access the tensioner due to the overlapping adjustment trajectories of the two pulleys, resulting in prolonged production line downtime. This invention addresses the aforementioned pain points of difficult synchronous compensation and limited maintenance space by proposing an anti-loosening tensioner that can still be adjusted back and forth with the main equipment after assembly, with the two pulleys sliding complementaryly along a Z-shaped trajectory. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a tensioning wheel to prevent loosening, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tensioning wheel that prevents loosening, comprising a support frame, wherein a tensioning wheel anti-loosening adjustment and protection device is provided at the front end of the support frame, the tensioning wheel anti-loosening adjustment and protection device comprising: a telescopic adjustment component and a tension anti-loosening component, wherein the rear end of the tension anti-loosening component is provided at the front end of the telescopic adjustment component, and the lower end of the telescopic adjustment component is installed on the upper end of the support frame.

[0005] In a preferred embodiment, the telescopic adjustment assembly includes: an electro-hydraulic cylinder, a rear baffle, a positioning mounting plate, a telescopic placement bracket, and a front positioning block, wherein the rear end of the front positioning block is connected to the output end of the electro-hydraulic cylinder.

[0006] In a preferred embodiment, the tension anti-loosening component includes: an upper sliding block, a lower sliding block, an upper sliding groove, a lower sliding groove, an upper stabilizing plate, a lower stabilizing plate, an upper tensioning wheel body, a lower tensioning wheel body, a first electric actuator, a second actuator, and a welding placement plate. The welding placement plate is provided in two sets, and the inner sides of the two sets of welding placement plates are respectively installed on the outer walls of the two sides of the front positioning block.

[0007] In a preferred embodiment, the lower end of the electro-hydraulic cylinder is mounted on the upper end of the telescopic placement bracket, the rear end of the telescopic placement bracket is mounted on the front end of the rear baffle, and the rear end of the rear baffle is detachably mounted on the front end of the positioning mounting plate.

[0008] In a preferred embodiment, the electric hydraulic cylinder is provided in three sets, and the three sets of electric hydraulic cylinders are of the same model and size.

[0009] In a preferred embodiment, the front ends of the upper sliding block and the lower sliding block are movably installed inside the upper sliding groove and the lower sliding groove, respectively, and both the upper sliding block and the lower sliding block are T-shaped.

[0010] In a preferred embodiment, the front ends of the upper sliding block and the lower sliding block are respectively installed at the rear ends of the upper stabilizing plate and the lower stabilizing plate, and the front ends of the upper stabilizing plate and the lower stabilizing plate are respectively installed at one end of the upper tensioning wheel body and the lower tensioning wheel body. The installation height of the upper tensioning wheel body is higher than that of the lower tensioning wheel body, and the adjustment trajectory of the upper tensioning wheel body and the lower tensioning wheel body is Z-shaped.

[0011] The technical effects and advantages of this utility model are as follows: A new anti-loosening tensioning wheel improves ease of use and continuous production line operation compared to existing technologies. It separates coarse and fine adjustments: after the electric hydraulic cylinder completes the coarse adjustment positioning, the first electric actuator and the second actuator only need a small stroke to achieve fine tension adjustment, reducing energy consumption and mechanical wear, and extending the life of the device. The overall structure is integrated into the front end of the support frame to form a modular unit, which can directly replace the traditional single wheel or old double wheel tensioning mechanism without changing the original transmission layout. It has excellent versatility and practical value. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the tension wheel anti-loosening adjustment and protection device of this utility model.

[0014] Figure 3 This is a schematic diagram of the telescopic adjustment component of this utility model.

[0015] Figure 4 This is a schematic diagram of the tensile anti-loosening component of this utility model.

[0016] The attached figures are labeled as follows: 1. Support frame; 2. Tensioner anti-loosening adjustment and protection device; 21. Telescopic adjustment assembly; 211. Positioning mounting plate; 212. Rear baffle; 213. Telescopic placement bracket; 214. Electric hydraulic cylinder; 215. Front positioning block; 22. Tensioning anti-loosening assembly; 221. Lower sliding groove; 222. Upper sliding groove; 223. Lower sliding block; 224. Upper sliding block; 225. Second pusher; 226. Welding placement plate; 227. Lower stabilizing plate; 228. Lower tensioner body; 229. Upper tensioner body; 220. Upper stabilizing plate; 2201. First electric pusher. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] As attached Figure 1-4 As shown, this utility model provides a tensioning wheel that prevents loosening, including a support frame 1. The front end of the support frame 1 is provided with a tensioning wheel anti-loosening adjustment and protection device 2. The tensioning wheel anti-loosening adjustment and protection device 2 includes: a telescopic adjustment component 21 and a tension anti-loosening component 22. The rear end of the tension anti-loosening component 22 is provided at the front end of the telescopic adjustment component 21, and the lower end of the telescopic adjustment component 21 is installed on the upper end of the support frame 1.

[0019] The telescopic adjustment assembly 21 includes: an electric hydraulic cylinder 214, a rear baffle 212, a positioning mounting plate 211, a telescopic placement bracket 213, and a front positioning block 215. The rear end of the front positioning block 215 is connected to the output end of the electric hydraulic cylinder 214. The lower end of the electric hydraulic cylinder 214 is mounted on the upper end of the telescopic placement bracket 213. The rear end of the telescopic placement bracket 213 is mounted on the front end of the rear baffle 212. The rear end of the rear baffle 212 is detachably mounted on the front end of the positioning mounting plate 211. There are three sets of electric hydraulic cylinders 214, and the three sets of electric hydraulic cylinders 214 are of the same model and size.

[0020] The tension anti-loosening assembly 22 includes: an upper sliding block 224, a lower sliding block 223, an upper sliding groove 222, a lower sliding groove 221, an upper stabilizing plate 220, a lower stabilizing plate 227, an upper tensioning wheel body 229, a lower tensioning wheel body 228, a first electric actuator 2201, a second actuator 225, and a welding placement plate 226. Two sets of welding placement plates 226 are provided, and the inner sides of the two sets of welding placement plates 226 are respectively installed on the outer walls of both sides of the front positioning block 215. The front ends of the upper sliding block 224 and the lower sliding block 223 are respectively movably installed on... Inside the upper sliding groove 222 and the lower sliding groove 221, the upper sliding block 224 and the lower sliding block 223 are both T-shaped. The front ends of the upper sliding block 224 and the lower sliding block 223 are respectively installed at the rear ends of the upper stabilizing plate 220 and the lower stabilizing plate 227. The front ends of the upper stabilizing plate 220 and the lower stabilizing plate 227 are respectively installed at one end of the upper tensioning wheel body 229 and the lower tensioning wheel body 228. The installation height of the upper tensioning wheel body 229 is higher than that of the lower tensioning wheel body 228. The adjustment trajectory of the upper tensioning wheel body 229 and the lower tensioning wheel body 228 is Z-shaped.

[0021] The specific implementation method is as follows: When using this utility model, after the support frame 1 is fixed to the host interface, the electric hydraulic cylinder 214 in the telescopic adjustment assembly 21 drives the front positioning block 215 to move back and forth as a whole through the telescopic placement bracket 213, so that the entire tension wheel anti-loosening adjustment and protection device 2 can continue to be coarsely adjusted along the belt axis after assembly to ensure that the initial installation position is aligned with the belt pitch line; the upper sliding block 224 and the lower sliding block 223 of the tension anti-loosening assembly 22 are respectively embedded in the upper sliding groove 222 and the lower sliding groove 221, and one end of the first electric pusher 2201 and the second pusher 225 are fixed to the welding placement plate 2. 26. The other end drives the upper stabilizing plate 220 and the lower stabilizing plate 227 respectively. When the belt becomes slack, the first electric actuator 2201 pushes the upper tensioning wheel body 229 to slide obliquely upward and forward, while the second actuator 225 pulls the lower tensioning wheel body 228 to slide obliquely downward and backward. The two wheels form a Z-shaped complementary trajectory in three-dimensional space, applying a compound tensioning force of vertical downward pressure and horizontal forward push to the belt at the same time, realizing multi-directional synchronous compensation. When the belt is too tight or needs maintenance, the two wheels retract along opposite trajectories, and the belt immediately returns to a slack state, allowing for direct and quick maintenance without disassembling the entire transmission system. This is achieved through the electric hydraulic cylinder 2. The cooperation between the 14 and the front positioning block 215 allows the device to be adjusted back and forth as a whole after assembly, significantly improving its compatibility with different host interfaces and reducing the accumulation of on-site assembly errors. Under the constraint of their respective sliding grooves, the upper tension wheel body 229 and the lower tension wheel body 228 are driven by the first electric actuator 2201 and the second actuator 225 to move in a complementary Z-shaped trajectory. This allows for simultaneous vertical downward pressure and horizontal forward thrust within the same three-dimensional space, ensuring uniform load distribution along the entire belt length, stable tension, avoiding localized stress concentration, and significantly enhancing tension stability and strength. The Z-shaped trajectory also ensures that the adjustment areas of the two wheels are mutually independent. The overlapping design allows the belt to loosen naturally by simply retracting the electric actuator during maintenance, eliminating the need to disassemble the entire transmission system, significantly reducing maintenance time, improving ease of use and continuous production line operation capabilities. Coarse and fine adjustments are separated: after the electric hydraulic cylinder 214 completes the coarse adjustment positioning, the first electric actuator 2201 and the second actuator 225 only require a short stroke to achieve fine tension adjustment, reducing energy consumption and mechanical wear, and extending the device's lifespan. The overall structure is integrated at the front end of the support frame 1, forming a modular unit that can directly replace traditional single-wheel or old double-wheel tensioning mechanisms without altering the original transmission layout, demonstrating excellent versatility and practical value.

[0022] Working principle: When using this utility model, after the support frame 1 is fixed to the host interface, the electric hydraulic cylinder 214 in the telescopic adjustment component 21 drives the front positioning block 215 to move back and forth as a whole through the telescopic placement bracket 213, so that the entire tension wheel anti-loosening adjustment and protection device 2 can continue to be coarsely adjusted along the belt axis after assembly to ensure that the initial installation position is aligned with the belt pitch line; the upper sliding block 224 and the lower sliding block 223 of the tension anti-loosening component 22 are respectively embedded in the upper sliding groove 222 and the lower sliding groove 221, and one end of the first electric pusher 2201 and the second pusher 225 are fixed to the welding bracket. The upper stabilizer 220 and the lower stabilizer 227 are driven by the other end of the plate 226. When the belt becomes slack, the first electric actuator 2201 pushes the upper tensioning wheel body 229 to slide obliquely upward and forward, while the second actuator 225 pulls the lower tensioning wheel body 228 to slide obliquely downward and backward. The two wheels form a Z-shaped complementary trajectory in three-dimensional space, applying a compound tensioning force of vertical downward pressure and horizontal forward push to the belt at the same time, realizing multi-directional synchronous compensation. When the belt is too tight or needs maintenance, the two wheels retract along opposite trajectories, and the belt immediately returns to a slack state, allowing for direct and quick maintenance without disassembling the entire transmission system.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking tensioner pulley comprising a support bracket (1), characterized in that: The front end of the support frame (1) is provided with a tension wheel anti-loosening adjustment and protection device (2); The tension wheel anti-loosening adjustment and protection device (2) includes: a telescopic adjustment component (21) and a tension anti-loosening component (22). The rear end of the tension anti-loosening component (22) is located at the front end of the telescopic adjustment component (21). The lower end of the telescopic adjustment component (21) is installed on the upper end of the support frame (1). The telescopic adjustment component (21) includes: an electric hydraulic cylinder (214), a rear baffle (212), a positioning mounting plate (211), a telescopic placement bracket (213), and a front positioning block (215). The rear end of the front positioning block (215) is connected to the electric hydraulic cylinder (214). 4) Output end, the tension anti-loosening component (22) includes: upper sliding block (224), lower sliding block (223), upper sliding groove (222), lower sliding groove (221), upper stabilizing plate (220), lower stabilizing plate (227), upper tensioning wheel body (229), lower tensioning wheel body (228), first electric actuator (2201), second actuator (225) and welding placement plate (226). The welding placement plate (226) is provided in two sets, and the inner sides of the two sets of welding placement plates (226) are respectively installed on the outer walls of the two sides of the front positioning block (215).

2. A self-locking tensioner pulley as in claim 1, wherein: The lower end of the electric hydraulic cylinder (214) is installed on the upper end of the telescopic placement bracket (213), the rear end of the telescopic placement bracket (213) is installed on the front end of the rear baffle (212), and the rear end of the rear baffle (212) is detachably installed on the front end of the positioning mounting plate (211).

3. The anti-loosening tensioning wheel according to claim 1, characterized in that: The electric hydraulic cylinder (214) is provided in three sets, and the three sets of electric hydraulic cylinders (214) are the same size and model.

4. The anti-loosening tensioning wheel according to claim 1, characterized in that: The front ends of the upper sliding block (224) and the lower sliding block (223) are respectively movably installed inside the upper sliding groove (222) and the lower sliding groove (221), and both the upper sliding block (224) and the lower sliding block (223) are T-shaped.

5. The anti-loosening tensioning wheel according to claim 1, characterized in that: The front ends of the upper sliding block (224) and the lower sliding block (223) are respectively installed at the rear ends of the upper stabilizing plate (220) and the lower stabilizing plate (227). The front ends of the upper stabilizing plate (220) and the lower stabilizing plate (227) are respectively installed at one end of the upper tensioning wheel body (229) and the lower tensioning wheel body (228). The installation height of the upper tensioning wheel body (229) is higher than that of the lower tensioning wheel body (228). The adjustment trajectory of the upper tensioning wheel body (229) and the lower tensioning wheel body (228) is Z-shaped.

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