A tensioner adjustment device

Abstract

The utility model belongs to the technical field of tensioner adjustment, and disclose a kind of tensioner adjusting device, including shell and outer tension wheel, be provided with adjusting assembly on shell, the lower portion of shell is provided with outer tension wheel, the side of shell is connected with extension frame, the other side of shell is connected with first driving source, the back of shell is connected with second driving source, the power output end power connection of second driving source has transmission tension wheel, the surface transmission connection of transmission tension wheel has transmission belt, the front of shell rotatably connects with first driven tension wheel, the front of shell rotatably connects with second driven tension wheel, the utility model is rotated by adjusting screw rod, and it is convenient to drive adjusting block corresponding along horizontal direction left and right translation movement, it is convenient to drive adjusting wheel to make translational movement accordingly, to facilitate when adjusting wheel left shift to reduce the pulling force of transmission belt whole, when adjusting wheel right shift to increase the pulling force of transmission belt whole, to further simply and quickly complete the tensioning force adjustment of whole.

Description

Technical Field

[0001] This utility model belongs to the field of tensioner adjustment technology, specifically a tensioner adjustment device. Background Technology

[0002] The tensioner acts on the timing belt or timing chain of the engine, guiding and tightening it to keep it in the optimal tension state. It is generally divided into two types: hydraulic and mechanical. Both can automatically adjust the tension of the timing belt and timing chain.

[0003] Meanwhile, a car tensioner with application number CN202220952239.9 includes an upper arm and a cylindrical lower arm. A pulley is rotatably mounted on the upper right side of the upper arm, and a spindle is formed on the lower left side of the upper arm. A connecting tube is formed inside the lower arm and is sleeved on the spindle. The spindle is rotatably engaged with the connecting tube through a bushing, and the outer wall of the spindle contacts the inner wall of the bushing to restrict the spindle from moving to the left. A torsion spring is sleeved on the connecting tube, with its two ends connecting the upper arm and the lower arm respectively. The axial cross section of the connecting tube is "L" shaped. The connecting tube consists of a tube portion sleeved on the spindle and a ring portion for connecting the lower arm and the tube portion, and the torsion spring is sleeved on the tube portion. The left end of the spindle extends out of the tube portion, and a ring-shaped limiting member is sleeved and fixed on the left end of the spindle, and the limiting member is pressed tightly against the left end face of the ring portion.

[0004] However, the following problems were found in the implementation of the relevant technology: it effectively avoids vibration during operation and affects the positioning of the pressure ring by using nylon gaskets, thus improving structural stability. However, it is inconvenient to adjust the overall tension of the tensioner, resulting in a lack of flexibility during use. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a tensioner adjustment device, which has the advantage of conveniently adjusting the overall tension of the tensioner to improve the overall flexibility of use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tensioner adjustment device, comprising a housing and an outer tension wheel, wherein an adjustment component is provided on the housing, an outer tension wheel is provided at the bottom of the housing, an extension frame is connected to one side of the housing, a first drive source is connected to the other side of the housing, a second drive source is connected to the back of the housing, a transmission tension wheel is poweredly connected to the power output end of the second drive source, a transmission belt is drivenly connected to the surface of the transmission tension wheel, a first driven tension wheel is rotatably connected to the front of the housing, and a second driven tension wheel is rotatably connected to the front of the housing;

[0007] The surface of the adjustment component is electrically connected to the power output end of the first drive source for tension adjustment.

[0008] Preferably, the adjustment assembly includes an adjustment screw, an adjustment wheel, and a fixing plate. The adjustment screw is disposed on the power output end of the first drive source. An adjustment block is threadedly connected to the surface of the adjustment screw via a screw nut. The adjustment wheel is rotatably disposed on the surface of the adjustment block. The fixing plate is disposed inside the housing, and a connecting spring is connected to one side of the fixing plate.

[0009] Preferably, one end of the adjusting screw is rotatably connected to the inner wall of the extension frame via a bearing.

[0010] Preferably, the surface of the adjusting block is slidably connected to the inner side of the housing.

[0011] Preferably, the surface of the adjusting wheel is connected to the surface of the transmission belt in a driving connection.

[0012] Preferably, the inner side of the fixing plate is provided with a through groove, the diameter of which is larger than the diameter of the adjusting screw.

[0013] Preferably, one end of the connecting spring is connected to one side of the adjusting block.

[0014] Preferably, the surfaces of the first driven tension wheel, the second driven tension wheel, and the outer tension wheel are all connected to the surface of the transmission belt.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model facilitates the adjustment of the adjusting block by rotating the adjusting screw, which in turn drives the adjusting wheel to move horizontally to the left and right. This allows the adjusting wheel to move horizontally accordingly, thereby reducing the overall tension of the transmission belt when the adjusting wheel moves to the left and increasing the overall tension of the transmission belt when the adjusting wheel moves to the right, thus enabling simple and quick adjustment of the overall tension.

[0017] 2. The present invention uses a fixing plate to facilitate the connection between the adjusting block and the connecting spring. Furthermore, a through groove is provided inside the fixing plate, and the diameter of the through groove is larger than the diameter of the adjusting block. Therefore, without affecting the rotation of the adjusting screw driven by the first driving source, the elastic connection of the connecting spring also improves the stability of the moving of the adjusting block, thereby helping to improve the stability of the tension adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the front planar structure of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;

[0022] Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0023] In the diagram: 1. Shell;

[0024] 2. Adjusting assembly; 21. Adjusting screw; 22. Adjusting block; 23. Adjusting wheel; 24. Fixing plate; 25. Connecting spring;

[0025] 3. External tensioning pulley; 4. Extension frame; 5. First drive source; 6. Second drive source; 7. Transmission tensioning pulley; 8. First driven tensioning pulley; 9. Second driven tensioning pulley; 10. Transmission belt. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 5 As shown, this utility model provides a tensioner adjustment device, including a housing 1 and an outer tension wheel 3. An adjustment component 2 is provided on the housing 1, and an outer tension wheel 3 is provided at the bottom of the housing 1. An extension frame 4 is connected to one side of the housing 1, a first drive source 5 is connected to the other side of the housing 1, a second drive source 6 is connected to the back of the housing 1, a transmission tension wheel 7 is powered to the power output end of the second drive source 6, a transmission belt 10 is driven to the surface of the transmission tension wheel 7, a first driven tension wheel 8 is rotatably connected to the front of the housing 1, and a second driven tension wheel 9 is rotatably connected to the front of the housing 1.

[0028] The surface of the adjustment component 2 is poweredly connected to the power output end of the first drive source 5 for tension adjustment.

[0029] Specifically, the adjustment assembly 2 includes an adjustment screw 21, an adjustment wheel 23, and a fixing plate 24. The adjustment screw 21 is located on the power output end of the first drive source 5. An adjustment block 22 is threadedly connected to the surface of the adjustment screw 21 through a screw nut. The adjustment wheel 23 is rotatably mounted on the surface of the adjustment block 22. The fixing plate 24 is located inside the housing 1. A connecting spring 25 is connected to one side of the fixing plate 24.

[0030] Furthermore, one end of the adjusting screw 21 is rotatably connected to the inner wall of the extension frame 4 via a bearing.

[0031] Furthermore, the surface of the adjusting block 22 is slidably connected to the inner side of the housing 1.

[0032] It is worth noting that the surface of the adjusting wheel 23 is connected to the surface of the transmission belt 10 in a transmission connection.

[0033] It is worth noting that a through groove is provided on the inner side of the fixing plate 24, and the diameter of the through groove is larger than the diameter of the adjusting screw 21.

[0034] It is worth mentioning that one end of the connecting spring 25 is connected to one side of the adjusting block 22.

[0035] It is worth emphasizing that the surfaces of the first driven tensioner 8, the second driven tensioner 9, and the outer tensioner 3 are all connected to the surface of the transmission belt 10.

[0036] The adjusting screw 21, adjusting wheel 23, and transmission belt 10 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The "front, back, left, and right" perspectives of this device are... Figure 1 The direction shown in the diagram is the reference.

[0037] Working principle: First, the second drive source 6 drives the transmission tensioning wheel 7 to rotate, which in turn drives the transmission belt 10 through the transmission tensioning wheel 7, the first driven tensioning wheel 8, the second driven tensioning wheel 9, and the outer tensioning wheel 3. Then, when the overall tension needs to be adjusted, the first drive source 5 drives the adjusting screw 21 to rotate. The adjusting screw 21 then drives the adjusting block 22, which is threadedly connected to it, to rotate. For example, if the tension of the transmission belt 10 needs to be reduced, the adjusting screw 21 drives the adjusting block 22 to rotate in the following direction: Figure 2 As shown, moving to the left causes the adjusting wheel 23 to gradually approach the positions of the first driven tension wheel 8 and the second driven tension wheel 9, thus reducing the tension on the transmission belt 10. Similarly, if it is necessary to increase the tension of the transmission belt 10, the adjusting block 22 can be moved to the right by adjusting the lead screw 21 to increase the tension on the transmission belt 10, thereby completing the tension adjustment. The operation is simple. When the adjusting block 22 moves horizontally, the connecting spring 25 acts as a connection between the adjusting block 22 and the fixed plate 24 to improve the stability of the horizontal movement of the adjusting block 22. A through groove is provided on the inner side of the fixed plate 24, and the diameter of the through groove is larger than the diameter of the adjusting lead screw 21, so it will not affect the rotation of the adjusting lead screw 21. At the same time, the surface of the adjusting block 22 is slidably connected to the inside of the housing 1, so the adjusting block 22 has better stability when moving horizontally, thereby improving the stability of the movement of the adjusting wheel 23.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tensioner adjusting device, comprising a housing (1) and an outer tensioning wheel (3), characterized in that: An adjustment assembly (2) is provided on the housing (1), an outer tensioning wheel (3) is provided at the bottom of the housing (1), an extension frame (4) is connected to one side of the housing (1), a first drive source (5) is connected to the other side of the housing (1), a second drive source (6) is connected to the back of the housing (1), a transmission tensioning wheel (7) is connected to the power output end of the second drive source (6), a transmission belt (10) is connected to the surface of the transmission tensioning wheel (7), a first driven tensioning wheel (8) is rotatably connected to the front of the housing (1), and a second driven tensioning wheel (9) is rotatably connected to the front of the housing (1). The surface of the adjustment component (2) is poweredly connected to the power output end of the first drive source (5) for tension adjustment.

2. The tensioner adjusting device according to claim 1, characterized in that: The adjustment assembly (2) includes an adjustment screw (21), an adjustment wheel (23), and a fixing plate (24). The adjustment screw (21) is disposed on the power output end of the first drive source (5). An adjustment block (22) is threadedly connected to the surface of the adjustment screw (21) through a screw nut. The adjustment wheel (23) is rotatably disposed on the surface of the adjustment block (22). The fixing plate (24) is disposed on the inner side of the housing (1). A connecting spring (25) is connected to one side of the fixing plate (24).

3. The tensioner adjusting device according to claim 2, characterized in that: One end of the adjusting screw (21) is rotatably connected to the inner wall of the extension frame (4) via a bearing.

4. A tensioner adjusting device according to claim 2, characterized in that: The surface of the adjusting block (22) is slidably connected to the inner side of the housing (1).

5. A tensioner adjusting device according to claim 2, characterized in that: The surface of the adjusting wheel (23) is connected to the surface of the transmission belt (10) in a transmission connection.

6. A tensioner adjusting device according to claim 2, characterized in that: The inner side of the fixing plate (24) is provided with a through groove, the diameter of which is larger than the diameter of the adjusting screw (21).

7. A tensioner adjusting device according to claim 2, characterized in that: One end of the connecting spring (25) is connected to one side of the adjusting block (22).

8. A tensioner adjusting device according to claim 1, characterized in that: The surfaces of the first driven tension wheel (8), the second driven tension wheel (9), and the outer tension wheel (3) are all connected to the surface of the transmission belt (10).

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