Width-adjustable tensioning wheel

Abstract

The utility model discloses a width-adjustable tensioning wheel which comprises a rim, a side disc clamped at the end of the rim and used for limiting a part for tensioning the rim, a mounting assembly arranged between the side disc and the rim and used for locking the rim and the side disc, and an outer wall of a mounting shaft slidably connected with the side disc in a penetrating and sleeving manner. External threads are formed in one end of the outer wall of the mounting shaft, the fixing lantern ring is fixedly connected to the outer portion of the mounting shaft in a sleeving mode and located on the side, away from the rim, of the side disc, and the connecting piece is arranged in the rim and connected with the mounting shaft. The wheel rim, the side edge discs and the installation assembly are used in a matched mode, the installation shaft can limit the side edge discs through the fixing lantern rings, so that the assembling stability of the wheel rim and the two side edge discs is guaranteed, the wheel rim and the side edge discs can be disassembled by disassembling the installation shaft, the wheel rims with different widths are assembled, and the assembling efficiency is improved. And the width of the tensioning wheel can be changed.

Description

Technical Field

[0001] This utility model relates to the field of tensioners, and in particular to a width-adjustable tensioner. Background Technology

[0002] A tensioner is a key component in a mechanical transmission system, primarily used to adjust and maintain the tension of a drive belt, cord, or chain. It ensures that the transmission system maintains appropriate tension during operation, thereby improving transmission efficiency, reducing wear, and preventing slippage of the drive belt or chain.

[0003] Tensioners are typically mounted on a movable bracket consisting of a shaft and a fixing component. Under external limiting force, the tensioner adjusts the tension of the drive belt, belt, or chain. The tensioner usually has a certain indentation on its exterior to limit the drive belt, belt, or chain passing over it. However, existing tensioners are usually integrated, which makes it inconvenient to assemble and adjust the width according to the product being tensioned when tensioning and limiting drive belts, belts, or chains of different widths, thus presenting certain defects. Utility Model Content

[0004] The purpose of this invention is to provide a width-adjustable tensioning wheel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a width-adjustable tensioning wheel, comprising:

[0006] Wheel rims;

[0007] A side plate, which is snapped onto the end of the wheel rim, is used to limit the tensioning components of the wheel rim;

[0008] A mounting assembly, disposed between the side plate and the wheel rim, is used to lock the wheel rim and the side plate together. The mounting assembly includes:

[0009] The mounting shaft has an outer wall that slides and interlocks with the side plate, and one end of the outer wall of the mounting shaft has an external thread.

[0010] A retaining collar is fixedly sleeved on the outside of the mounting shaft, and the retaining collar is located on the side of the side plate away from the wheel rim;

[0011] A connector is disposed inside the wheel rim and is connected to a mounting shaft.

[0012] Preferably, the mounting components further include:

[0013] A connecting collar is sleeved on the outside of the mounting shaft. The side plate has a groove corresponding to the connecting collar on its side. One side of the connecting collar fits into the fixing collar.

[0014] The first ball is rotatably disposed between the connecting collar and the side plate.

[0015] Preferably, the mounting components further include:

[0016] A positioning rod, one end of which is fixedly connected to the side plate;

[0017] The positioning groove is located at the end of the wheel rim, and the outer wall of the positioning rod is slidably sleeved with the inner cavity of the positioning groove.

[0018] Preferably, the connector includes:

[0019] A limiting cylinder, which is rotatably fitted inside the wheel rim;

[0020] The first threaded groove is formed at the end of the limiting cylinder, and the mounting shaft is threaded into the inner cavity of the first threaded groove through an external thread.

[0021] Preferably, the connector further includes:

[0022] The second ball bearing is rotatably embedded outside the limiting cylinder, and the second ball bearing is in contact with the inner wall of the rim.

[0023] The third ball bearing is rotatably embedded at the end of the limiting cylinder, and the third ball bearing is in contact with one side of the side plate.

[0024] Preferably, the connector includes:

[0025] A connecting post is provided inside the wheel rim, and a second threaded groove is provided at the end of the connecting post. The mounting shaft is threadedly connected to the inner cavity of the second threaded groove through an external thread.

[0026] A planar bearing, which is sleeved on the outside of the mounting shaft, is disposed between the connecting column and the side plate.

[0027] The technical effects and advantages of this utility model are as follows:

[0028] This utility model utilizes the combined use of a wheel rim, side discs, and mounting components. The mounting components include a mounting shaft, a fixing collar, and a connector. The mounting shaft, threaded at both ends of the connector, can limit the side discs through the fixing collar, thereby ensuring the stability of the wheel rim and the two side discs during assembly. By disassembling the mounting shaft, the wheel rim and side discs can be separated, allowing for the assembly of wheel rims of different widths, thus changing the width of the tensioning wheel. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the internal structure of the front of the first embodiment of the present utility model;

[0031] Figure 3 This is a schematic diagram of the internal structure of the front of the second embodiment of the present invention.

[0032] In the diagram: 1. Wheel rim; 2. Side plate; 3. Mounting assembly; 31. Mounting shaft; 32. Fixing collar; 33. Connecting piece; 331. Limiting cylinder; 332. Second ball bearing; 333. Third ball bearing; 334. Connecting column; 335. Surface bearing; 34. Connecting collar; 35. First ball bearing; 36. Positioning rod. Detailed Implementation

[0033] 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.

[0034] Example 1

[0035] This utility model provides, for example Figure 1-2 The adjustable-width tensioner includes a rim 1, two side discs 2, and a mounting assembly 3. The side discs 2 are snapped onto the ends of the rim 1 and are used to limit the tensioning components of the rim 1. Thus, the two side discs 2 and the rim 1 are assembled to form a tensioner. By assembling rims 1 of different widths between the two side discs 2, tensioners of different widths can be formed. The mounting assembly 3 is disposed between the side discs 2 and the rim 1 and is used to lock the rim 1 and the side discs 2. The mounting assembly 3 includes a mounting shaft 31 and a retaining collar 3. 2 and connector 33, the outer wall of mounting shaft 31 is slidably inserted into side plate 2, thereby limiting the side plate 2, and mounting shaft 31 can be mounted on the bracket of tension wheel mounting. Side plate 2 and wheel rim 1 rotate relative to mounting shaft 31. One end of the outer wall of mounting shaft 31 is provided with external thread. Fixing collar 32 is fixedly sleeved on the outside of mounting shaft 31. Fixing collar 32 is located on the side of side plate 2 away from wheel rim 1. Connector 33 is set inside wheel rim 1. Connector 33 is connected to mounting shaft 31. Connector 33 can limit the connection of two mounting shafts 31.

[0036] Furthermore, the mounting assembly 3 also includes a connecting collar 34, a first ball bearing 35, a positioning rod 36, and a positioning groove. The connecting collar 34 is sleeved on the outside of the mounting shaft 31. The side of the side plate 2 has a groove corresponding to the connecting collar 34. One side of the connecting collar 34 is in contact with the fixing collar 32. The first ball bearing 35 is rotatably disposed between the connecting collar 34 and the side plate 2. The first ball bearing 35 and the connecting collar 34 can reduce the frictional resistance experienced by the side plate 2 when rotating relative to the mounting shaft 31. One end of the positioning rod 36 is fixedly connected to the side plate 2. The positioning groove is opened at the end of the wheel rim 1. The outer wall of the positioning rod 36 is slidably sleeved with the inner cavity of the positioning groove. The positioning rod 36 can ensure the stability of the docking between the wheel rim 1 and the side plate 2, and ensure that the wheel rim 1 and the side plate 2 rotate synchronously.

[0037] Furthermore, the connecting member 33 includes a limiting cylinder 331, a first threaded groove, a second ball 332, and a third ball 333. The limiting cylinder 331 is rotatably sleeved inside the wheel rim 1. The first threaded groove is formed at the end of the limiting cylinder 331. The mounting shaft 31 is threaded into the inner cavity of the first threaded groove via an external thread. One end of the mounting shaft 31 has a rectangular groove, which can be used to rotate the mounting shaft 31 to thread it onto the limiting cylinder 331 using a rectangular wrench. When the mounting shafts 31 at both ends of the limiting cylinder 331 rotate in opposite directions, the two mounting shafts 31 can be mated and fastened to the limiting cylinder 331, or the two mounting shafts 31 can be connected to the limiting cylinder. 331 is separated, and the other end of the mounting shaft 31 is pressed against the inner wall of the first threaded groove. This prevents the fixing collar 32 on the outer wall of the mounting shaft 31 from pressing and locking the side plate 2 after the mounting shaft 31 is connected and tightened with the limiting cylinder 331. The second ball 332 is rotatably embedded in the outside of the limiting cylinder 331 and is in contact with the inner wall of the wheel rim 1. The third ball 333 is rotatably embedded in the end of the limiting cylinder 331 and is in contact with one side of the side plate 2. The second ball 332 and the third ball 333 can reduce the friction between the wheel rim 1 and the side plate 2 and the limiting cylinder 331.

[0038] Example 2

[0039] Unlike Example 1, as Figure 3As shown, the connector 33 includes a connecting post 334 and a plane bearing 335. The connecting post 334 is disposed inside the rim 1. A second threaded groove is provided at the end of the connecting post 334. The mounting shaft 31 is threaded into the inner cavity of the second threaded groove through an external thread. One end of the mounting shaft 31 is provided with a rectangular groove, which can be driven to rotate with a rectangular wrench to connect with the threaded connection of the mounting shaft 334. When the mounting shafts 31 at both ends of the connecting post 334 rotate in opposite directions, the two mounting shafts 31 can be tightly mated with the connecting post 334. The two mounting shafts 31 are separated from the connecting column 334, and the other end of the mounting shaft 31 is pressed against the inner wall of the second threaded groove. This prevents the fixing collar 32 on the outer wall of the mounting shaft 31 from pressing and locking the side plate 2 after the mounting shaft 31 and the connecting column 334 are fastened together. The flat bearing 335 is sleeved on the outside of the mounting shaft 31 and is located between the connecting column 334 and the side plate 2. The flat bearing 335 can reduce the friction between the connecting column 334 and the side plate 2.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 width-adjustable tensioning wheel, characterized in that, include: Wheel rim (1); Side plate (2), which is snapped onto the end of the wheel rim (1), and is used to limit the tensioning components of the wheel rim (1); Mounting assembly (3), which is disposed between the side plate (2) and the wheel rim (1), is used to lock the wheel rim (1) and the side plate (2), and includes: Mounting shaft (31), the outer wall of the mounting shaft (31) is slidably inserted into the side plate (2), and one end of the outer wall of the mounting shaft (31) is provided with an external thread; A fixing collar (32) is fixedly sleeved on the outside of the mounting shaft (31), and the fixing collar (32) is located on the side of the side plate (2) away from the wheel rim (1); A connector (33) is disposed inside the wheel rim (1) and is connected to the mounting shaft (31).

2. The adjustable-width tensioner according to claim 1, characterized in that, The installation component (3) also includes: A connecting collar (34) is sleeved on the outside of the mounting shaft (31). The side plate (2) has a groove corresponding to the connecting collar (34) on its side. One side of the connecting collar (34) is in contact with the fixing collar (32). The first ball (35) is rotatably disposed between the connecting collar (34) and the side plate (2).

3. The adjustable-width tensioner according to claim 2, characterized in that, The installation component (3) also includes: Positioning rod (36), one end of which is fixedly connected to the side plate (2); The positioning groove is located at the end of the wheel rim (1), and the outer wall of the positioning rod (36) is slidably sleeved with the inner cavity of the positioning groove.

4. The adjustable-width tensioner according to claim 1, characterized in that, The connector (33) includes: A limiting cylinder (331) is rotatably sleeved inside the wheel rim (1); The first threaded groove is formed at the end of the limiting cylinder (331), and the mounting shaft (31) is threadedly connected to the inner cavity of the first threaded groove through the external thread.

5. The adjustable-width tensioner according to claim 4, characterized in that, The connector (33) also includes: The second ball (332) is rotatably embedded outside the limiting cylinder (331), and the second ball (332) is in contact with the inner wall of the rim (1); The third ball (333) is rotatably embedded at the end of the limiting cylinder (331) and is in contact with one side of the side plate (2).

6. The adjustable-width tensioner according to claim 1, characterized in that, The connector (33) includes: A connecting post (334) is provided inside the wheel rim (1). The end of the connecting post (334) is provided with a second threaded groove. The mounting shaft (31) is threadedly connected to the inner cavity of the second threaded groove through an external thread. A planar bearing (335) is sleeved on the outside of the mounting shaft (31) and is disposed between the connecting column (334) and the side plate (2).

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