Double-position tensioner assembly

Abstract

The utility model discloses a double-station tension wheel assembly, including a fixed shell, the fixed shell is provided with two fixed arms, the ends of the two fixed arms are respectively provided with idle wheels, a first swing arm is installed on one side of the fixed shell, a second swing arm is installed on the other side of the fixed shell, a first torsion spring is arranged between the first swing arm and the inner wall of the fixed shell, a second torsion spring is arranged between the second swing arm and the inner wall of the fixed shell, a first tension wheel is installed at the end of the first swing arm, a second tension wheel is installed at the end of the second swing arm, the first tension wheel and the second tension wheel are close to each other and are respectively located at the interval position between the first swing arm and the second swing arm. This greatly saves the installation space, reduces the installation process, improves the utilization space of the engine compartment, reduces the cost and has a reliable structure.

Description

Technical Field

[0001] The utility model relates to a transmission component on an engine, in particular to a double-station tension wheel assembly. Background Art

[0002] The tensioner is a tensioning device for belt transmission. When the center distance of the belt cannot be adjusted, the tensioner can be used to tension the belt. The tensioner is a follower wheel that presses on the belt to change the wrap angle of the pulley or control the tension of the belt. It is a tensioning device for belt transmission.

[0003] The output of existing engine power all relies on belts. Some engines may have two or three sets of belt drives, which requires a corresponding number of tensioners. However, the space in the engine compartment is extremely small. The installation of multiple tensioners will take up engine space, which is costly and difficult and cumbersome to install. Summary of the invention

[0004] In order to solve the above problems, the purpose of the utility model is to provide a double-station tensioning wheel assembly to improve the space utilization of the engine compartment and reduce costs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-station tensioning wheel assembly, comprising a fixed shell, the fixed shell is provided with two fixed arms, the ends of the two fixed arms are respectively provided with idle wheels, a first swing arm is installed on one side of the fixed shell, and a second swing arm is installed on the other side of the fixed shell, the openings on both sides of the fixed shell are respectively provided as shaft holes, a partition is provided at the middle position between the shaft holes, a threaded hole coaxial with the shaft hole is provided on the partition, the first swing arm and the second swing arm are respectively provided with a rotating sleeve inserted into the shaft hole, and the first swing arm is provided with a rotating sleeve inserted into the shaft hole. After the rotating sleeve is inserted into one of the axial holes, the first bolt passes through the rotating sleeve and is threadedly connected to one side of the threaded hole. After the rotating sleeve on the second swing arm is inserted into the other axial hole, the second bolt passes through the rotating sleeve and is threadedly connected to the other side of the threaded hole. A first torsion spring is arranged between the first swing arm and the inner wall of the fixed shell, and a second torsion spring is arranged between the second swing arm and the inner wall of the fixed shell. A first tensioning wheel is installed at the end of the first swing arm, and a second tensioning wheel is installed at the end of the second swing arm. The first tensioning wheel and the second tensioning wheel are close to each other and are respectively located at the interval between the first swing arm and the second swing arm.

[0006] One end leg of the first torsion spring abuts against the groove on one side of the partition, and the other end leg of the first torsion spring abuts against the protrusion of the first swing arm. A first sleeve is arranged between the rotating sleeve of the first swing arm and the first bolt, and a first sleeve is also arranged between the first torsion spring and the first swing arm. The first sleeve is arc-shaped, and a first arc-shaped groove is arranged on the first sleeve. The end of the first torsion spring is inserted into the first arc-shaped groove. A first positioning groove matched with the first sleeve is arranged on the side wall of the first swing arm, and a first washer is also arranged between the first bolt and the first swing arm.

[0007] One end leg of the second torsion spring abuts against the groove on the other side of the partition, and the other end leg of the second torsion spring abuts against the protrusion of the second swing arm. A second sleeve is arranged between the rotating sleeve of the second swing arm and the second bolt, and a second sleeve is also arranged between the second torsion spring and the second swing arm. The second sleeve is arc-shaped, and a second arc groove is arranged on the second sleeve. The end of the second torsion spring is placed in the second arc groove. A second positioning groove matched with the second sleeve is arranged on the side wall of the second swing arm, and a second washer is also arranged between the second bolt and the second swing arm.

[0008] In the structure of the utility model, the first tension wheel and the second tension wheel are gathered on a fixed shell, and the first tension wheel and the second tension wheel are close to each other and are respectively located at intervals between the first swing arm and the second swing arm, which greatly saves installation space, reduces installation procedures, improves the utilization space of the engine compartment, reduces costs and has a reliable structure.

[0009] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;

[0011] Figure 2 It is a cross-sectional view of a specific implementation mode of the utility model;

[0012] Figure 3 The explosion of the specific implementation mode of the utility model Figure 1 ;

[0013] Figure 4 The explosion of the specific implementation mode of the utility model Figure 2 . DETAILED DESCRIPTION

[0014] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0015] like Figure 1 — Figure 4As shown, this embodiment discloses a double-station tensioning wheel assembly, including a fixed housing 1, the fixed housing 1 is provided with two fixed arms, the ends of the two fixed arms are respectively provided with idler wheels 2, a first swing arm 3 is installed on one side of the fixed housing 1, and a second swing arm 4 is installed on the other side of the fixed housing 1, the openings on both sides of the fixed housing 1 are respectively set as shaft holes 11, a partition 12 is provided at the middle position between the shaft holes 11, and a threaded hole 5 coaxial with the shaft hole 11 is provided on the partition 12, and a rotating sleeve 100 inserted into the shaft hole 11 is respectively provided on the first swing arm 3 and the second swing arm 4, after the rotating sleeve 100 on the first swing arm 3 is inserted into one of the shaft holes 11, the first bolt 6 passes through the rotating sleeve 100 and is threaded on one side of the threaded hole 5 After the rotating sleeve 100 on the second swing arm 4 is inserted into the other axial hole 11, the second bolt 7 passes through the rotating sleeve 100 and is threadedly connected to the other side of the threaded hole 5. A first torsion spring 8 is arranged between the first swing arm 3 and the inner wall of the fixed shell 1, and a second torsion spring 9 is arranged between the second swing arm 4 and the inner wall of the fixed shell 1. A first tensioning wheel 10 is installed at the end of the first swing arm 3, and a second tensioning wheel 20 is installed at the end of the second swing arm 4. The first tensioning wheel 10 and the second tensioning wheel 20 are close to each other and are respectively located at the interval between the first swing arm 3 and the second swing arm 4. When the engine has two belt drives, one belt passes through an idler wheel 2 and the first tensioning wheel 10, and the other belt can pass through another idler wheel 2 and the second tensioning wheel 20.

[0016] The installation structure of the first torsion spring 8 is as follows: one end leg of the first torsion spring 8 abuts against the groove 121 on one side of the partition 12 to receive force, and the other end leg of the first torsion spring 8 abuts against the protrusion 31 of the first swing arm 3 to receive force, and a first sleeve 30 is arranged between the rotating sleeve 100 of the first swing arm 3 and the first bolt 6, and the first sleeve 30 is rotatably sleeved on the first bolt 6 to improve the smoothness of the rotation of the first swing arm 3, and a first sheath 40 is also arranged between the first torsion spring 8 and the first swing arm 3. The first sheath 40 is in an arc shape, and a first arc groove 401 is provided on the first sheath 40. The end of the first torsion spring 8 is placed in the first arc groove 401, so that the first torsion spring 8 is positioned, so that the first torsion spring 8 is not easily deformed, and the legs of the first torsion spring 8 are assisted to be positioned and matched with the protrusion 31 of the first swing arm 3. The side wall of the first swing arm 3 is provided with a first positioning groove adapted to the first sheath 40 for positioning, and a first washer 50 is also arranged between the first bolt 6 and the first swing arm 3. This structure can make the installation of the first torsion spring more reliable, and ensure the stability of the operation of the first torsion spring.

[0017] The installation structure of the second torsion spring 9 is the same as that of the first torsion spring 8, that is, one end leg of the second torsion spring 9 abuts against the groove on the other side of the partition 12, and the other end leg of the second torsion spring 9 abuts against the protrusion of the second swing arm 4. A second sleeve is arranged between the rotating sleeve 100 of the second swing arm 4 and the second bolt 7. A second sleeve is also arranged between the second torsion spring 9 and the second swing arm 4. The second sleeve is arc-shaped and is provided with a second arc groove. The end of the second torsion spring 9 is placed in the second arc groove. A second positioning groove adapted to the second sleeve is arranged on the side wall of the second swing arm 4. A second washer is also arranged between the second bolt 7 and the second swing arm 4. This ensures the working stability of the second torsion spring.

[0018] By adopting the above technical solution, the first tensioning wheel 10 and the second tensioning wheel 20 are gathered on a fixed shell 1, and the first tensioning wheel 10 and the second tensioning wheel 20 are close to each other and are respectively located at the interval position between the first swing arm 3 and the second swing arm 4. This greatly saves installation space, reduces installation procedures, improves the utilization space of the engine compartment, reduces costs and has a reliable structure.

Claims

1. A double-station tensioning wheel assembly, comprising a fixed housing, characterized in that: The fixed shell is provided with two fixed arms, and the ends of the two fixed arms are respectively provided with idle wheels. A first swing arm is installed on one side of the fixed shell, and a second swing arm is installed on the other side of the fixed shell. The openings on both sides of the fixed shell are respectively set as axial holes, and a partition is set at the middle position between the axial holes. A threaded hole coaxial with the axial hole is set on the partition, and a rotating sleeve inserted into the axial hole is respectively provided on the first swing arm and the second swing arm. After the rotating sleeve on the first swing arm is inserted into one of the axial holes, the first bolt passes through the rotating sleeve and is threadedly connected to one side of the threaded hole. After the rotating sleeve on the second swing arm is inserted into the other axial hole, the second bolt passes through the rotating sleeve and is threadedly connected to the other side of the threaded hole. A first torsion spring is arranged between the first swing arm and the inner wall of the fixed shell, and a second torsion spring is arranged between the second swing arm and the inner wall of the fixed shell. A first tensioning wheel is installed at the end of the first swing arm, and a second tensioning wheel is installed at the end of the second swing arm. The first tensioning wheel and the second tensioning wheel are close to each other and are respectively located at the interval position between the first swing arm and the second swing arm.

2. The double-station tension wheel assembly according to claim 1 is characterized in that: One end leg of the first torsion spring abuts against the groove on one side of the partition, and the other end leg of the first torsion spring abuts against the protrusion of the first swing arm. A first sleeve is arranged between the rotating sleeve of the first swing arm and the first bolt, and a first sleeve is also arranged between the first torsion spring and the first swing arm. The first sleeve is arc-shaped, and a first arc-shaped groove is arranged on the first sleeve. The end of the first torsion spring is inserted into the first arc-shaped groove. A first positioning groove matched with the first sleeve is arranged on the side wall of the first swing arm, and a first washer is also arranged between the first bolt and the first swing arm.

3. The double-station tension wheel assembly according to claim 1 is characterized in that: One end leg of the second torsion spring abuts against the groove on the other side of the partition, and the other end leg of the second torsion spring abuts against the protrusion of the second swing arm. A second sleeve is arranged between the rotating sleeve of the second swing arm and the second bolt, and a second sleeve is also arranged between the second torsion spring and the second swing arm. The second sleeve is arc-shaped, and a second arc groove is arranged on the second sleeve. The end of the second torsion spring is placed in the second arc groove. A second positioning groove matched with the second sleeve is arranged on the side wall of the second swing arm, and a second washer is also arranged between the second bolt and the second swing arm.

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