Tensioner convenient to overhaul and maintain

Abstract

The utility model belongs to the technical field of tensioners, and discloses a tensioner convenient to overhaul and maintain, which comprises a fixed seat, a stand column is rotatably connected in the fixed seat, a first fixed arm is fixedly arranged on the outer side of the top of the stand column, and a threaded area is in threaded connection in the first fixed arm. The outer side of the bottom of the threaded area is in threaded connection with a nut, a connecting shaft is fixedly arranged at the top of the threaded area, a second bearing is movably arranged on the outer side of the connecting shaft, and a first rolling wheel is rotationally arranged on the outer side of the second bearing. According to the scheme, the side plate is fixedly arranged at the bottom of the fixed seat, and the mounting hole is formed in the surface of the side plate, so that the problem of difficulty in detection and maintenance due to difficulty in disassembly of the tensioner is solved, the disassembly time of the tensioner during inspection and maintenance is shortened, the working efficiency is indirectly improved, and meanwhile, the tensioner is simple in structure and convenient to use. The method is suitable for large-scale popularization.

Description

A tensioner that is easy to inspect and maintain. Technical Field

[0001] This utility model belongs to the field of tensioner technology, specifically a tensioner that is easy to inspect and maintain. Background Technology

[0002] The tensioner functions on the engine's timing belt or timing chain, guiding and tightening it to maintain optimal tension. It generally comes in two types: hydraulic and mechanical, both of which can automatically adjust the tension of the timing belt and timing chain.

[0003] In reality, tensioners are difficult to disassemble after use, making it impossible to inspect their internal parts during subsequent checks and repairs. This leads to the common practice of replacing a tensioner with a new one when a problem occurs, which discards parts that are not yet faulty, thus increasing the financial burden. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a tensioner that is easy to inspect and maintain, offering advantages in terms of ease of inspection and repair. This invention solves the problem of difficult disassembly of the tensioner, which leads to difficulties in inspection and repair, reducing disassembly time during tensioner inspection and repair, thereby indirectly improving work efficiency. Furthermore, the tensioner has a simple structure, making it suitable for large-scale promotion.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tensioner that is easy to inspect and maintain, comprising a fixed base, a column rotatably connected inside the fixed base, a first fixed arm fixedly provided on the top outer side of the column, a threaded area threaded inside the first fixed arm, a nut threadedly connected on the bottom outer side of the threaded area, a connecting shaft fixedly provided on the top of the threaded area, a second bearing movably provided on the outer side of the connecting shaft, and a first roller rotatably provided on the outer side of the second bearing.

[0006] Preferably, a side plate is fixedly provided at the bottom of the fixing base, and the surface of the side plate is provided with mounting holes.

[0007] Preferably, a first bearing is fixedly provided on the inner bottom of the fixed base, and the first bearing is rotatably connected to the column.

[0008] Preferably, a protective pad is fixedly provided on the bottom surface of the fixing seat, and the protective pad is in contact with the first bearing.

[0009] Preferably, the fixed base is provided with a threaded disc that rotates inside, and the threaded disc is threadedly connected to the column.

[0010] Preferably, the surface of the threaded disc is provided with a levering hole, and the levering hole is hexagonal.

[0011] Preferably, a second fixing arm is fixedly provided on the outer side of the column, and a second roller is movably provided on the top surface of the second fixing arm.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model increases the stability of the tensioner by connecting it to the column via a leverage hole and a threaded connection, while also facilitating subsequent disassembly. The first roller and the connecting shaft are connected in the same way, which also facilitates subsequent disassembly. This solves the problem of difficult disassembly of the tensioner, which leads to difficulties in inspection and maintenance. It reduces the disassembly time during tensioner inspection and maintenance, thereby indirectly improving work efficiency. At the same time, the tensioner has a simple structure and is suitable for large-scale promotion. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 is a schematic diagram of the installation structure of the protective pad of this utility model;

[0016] Figure 3 is a schematic cross-sectional view of the fixing base of this utility model;

[0017] Figure 4 is a schematic diagram of the connecting shaft installation structure of this utility model;

[0018] In the diagram: 1. Fixed base; 101. Side plate; 102. Mounting hole; 2. Threaded disc; 201. Support hole; 3. Column; 4. First fixed arm; 5. Connecting shaft; 6. Threaded area; 7. Nut; 8. First roller; 9. First bearing; 10. Protective pad; 11. Second fixed arm; 12. Second roller; 13. Second bearing. Detailed Implementation

[0019] 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.

[0020] As shown in Figures 1 to 4, this utility model provides a tensioner that is easy to inspect and maintain. It includes a fixed base 1, a column 3 rotatably connected inside the fixed base 1, a first fixed arm 4 fixedly installed on the top outer side of the column 3, a threaded area 6 threadedly connected inside the first fixed arm 4, a nut 7 threadedly connected to the bottom outer side of the threaded area 6, a connecting shaft 5 fixedly installed on the top of the threaded area 6, a second bearing 13 movably installed on the outer side of the connecting shaft 5, and a first roller 8 rotatably installed on the outer side of the second bearing 13. The nut 7 is removed from the outer side of the threaded area 6, and then the threaded area 6 together with the components on the outer side of the connecting shaft 5 are unscrewed from the inside of the nut 7. Then, these parts are inspected and repaired, thereby reducing the time and effort required to disassemble the tensioner, improving work efficiency, and also avoiding the waste of intact parts.

[0021] Specifically, a side plate 101 is fixedly installed at the bottom of the fixed base 1, and a mounting hole 102 is opened on the surface of the side plate 101. The tensioner can be installed on the designated instrument through the mounting hole 102.

[0022] Furthermore, a first bearing 9 is fixedly installed on the inner bottom of the fixed base 1, and the first bearing 9 is rotatably connected to the column 3. The first bearing 9 reduces the friction of the column 3 when it rotates.

[0023] Furthermore, a protective pad 10 is fixedly provided on the bottom surface of the fixed base 1, and the protective pad 10 is in contact with the first bearing 9. The protective pad 10 is used to protect the first bearing 9 and prevent its surface from being rubbed for a long time.

[0024] It is worth noting that the fixed base 1 has a threaded disc 2 inside for rotation, and the threaded disc 2 is threadedly connected to the column 3. Tightening the threaded disc 2 can prevent the column 3 from rotating, and loosening the threaded disc 2 will allow the column 3 to rotate freely.

[0025] It is worth noting that the surface of the threaded disc 2 is provided with a lever hole 201, and the lever hole 201 is hexagonal. By inserting a hexagonal wrench into the lever hole 201, the threaded disc 2 can be easily rotated, and then the angle of the column 3 can be adjusted.

[0026] It is worth mentioning that a second fixing arm 11 is fixedly installed on the outer side of the column 3, and a second roller 12 is movably installed on the top surface of the second fixing arm 11. Compared with the single roller tensioner, the double roller tensioner has significant advantages in terms of stability, durability and load capacity.

[0027] The bearing is existing technology and will not be described in detail. In addition, this utility model also includes a power supply, a controller and a 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 based on the direction shown in Figure 1.

[0028] Working principle:

[0029] When inspecting or repairing the tensioner, firstly, remove the fixing bolts from the inside of the mounting holes 102 on both sides of the side plate 101. Then, use the leverage hole 201 to remove the threaded disc 2 from the inside of the fixed seat 1. At this time, the first bearing 9 inside the fixed seat 1 can be inspected. The protective pad 10 is used to protect the first bearing 9 during use. If there is a problem, remove the column 3. Then, remove the nut 7 from the threaded area 6. Then rotate the threaded area 6 to remove it from the inside of the first fixed arm 4. Then, start inspecting the second bearing 13 and the first roller 8 on the outside of the connecting shaft 5. The second roller 12 on the other side is removed from the inside of the second fixed arm 11 in the same way. This utility model solves the problem that the tensioner is difficult to disassemble, which leads to difficulties in inspection and maintenance. It reduces the disassembly time during the inspection and maintenance of the tensioner, thereby indirectly improving work efficiency. At the same time, the tensioner has a simple structure and is suitable for large-scale promotion.

[0030] 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.

[0031] 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 that is easy to inspect and maintain, comprising a fixed base (1), characterized in that: The fixed base (1) is rotatably connected to a column (3). A first fixed arm (4) is fixedly installed on the top outer side of the column (3). A threaded area (6) is threadedly connected inside the first fixed arm (4). A nut (7) is threadedly connected to the bottom outer side of the threaded area (6). A connecting shaft (5) is fixedly installed on the top of the threaded area (6). A second bearing (13) is movably installed on the outer side of the connecting shaft (5). A first roller (8) is rotatably installed on the outer side of the second bearing (13).

2. The tensioner for easy inspection and maintenance according to claim 1, characterized in that: The bottom of the fixing base (1) is fixedly provided with a side plate (101), and the surface of the side plate (101) is provided with mounting holes (102).

3. The tensioner for easy inspection and maintenance according to claim 1, characterized in that: The bottom inner side of the fixed base (1) is fixedly provided with a first bearing (9), and the first bearing (9) is rotatably connected to the column (3).

4. A tensioner for easy inspection and maintenance according to claim 1, characterized in that: The bottom surface of the fixed seat (1) is fixedly provided with a protective pad (10), and the protective pad (10) is in contact with the first bearing (9).

5. A tensioner for easy inspection and maintenance according to claim 1, characterized in that: The fixed base (1) is internally rotatably provided with a threaded disc (2), and the threaded disc (2) is threadedly connected to the column (3).

6. A tensioner for easy inspection and maintenance according to claim 5, characterized in that: The surface of the threaded disc (2) is provided with a lever hole (201), and the lever hole (201) is hexagonal.

7. A tensioner for easy inspection and maintenance according to claim 1, characterized in that: A second fixing arm (11) is fixedly installed on the outer side of the column (3), and a second roller (12) is movably installed on the top surface of the second fixing arm (11).

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