Tensioner structure for cam dynamometer

Abstract

The utility model discloses a cam indicator tensioner structure, the cam indicator tensioner structure includes the seat body and sets up the oil pump on the seat body, the both ends of seat body are provided with hydraulic tensioning cover, the oil pump is connected with hydraulic tensioning cover through pipeline, the lower end surface of seat body is provided with pressure sensor, is provided with mounting seat on pressure sensor, detachably be provided with positioning piece on mounting seat, be provided with positioning hole on positioning piece. This tensioner structure is used in positioning shock absorber upper end connecting rod, can adjust according to the length of shock absorber, can effectively detect the pressure data of the record connecting rod simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber testing, specifically to a cam indicator tensioner structure. Background Technology

[0002] The core function of a shock absorber is to absorb and dissipate vibration energy through damping. After manufacturing, the damping characteristics of the shock absorber need to be tested to verify whether it meets the displacement-force relationship damping coefficient under actual working conditions. During testing, the shock absorber is typically fixed to a lifting seat on the frame. The relative displacement of the outer cylinder and connecting rod of the shock absorber is recorded by reciprocating movement, and the pressure data at the end of the connecting rod and the relative displacement data of the outer cylinder are recorded. The data curves are then compared with standards to determine the final product's qualification. A seat structure for fixing the end of the connecting rod needs to be installed at the upper end of the frame, and sensors mounted on the seat record the pressure data. Therefore, providing a tensioning seat structure that can adjust the seat height according to different shock absorber lengths and effectively record the pressure data at the end of the connecting rod is a problem that this invention urgently needs to solve. Utility Model Content

[0003] The purpose of this invention is to provide a tensioning seat structure for a cam indicator mechanism. This tensioning seat structure is used to position the upper connecting rod of the shock absorber. It can be adjusted according to the length of the shock absorber and can effectively detect and record the pressure data generated by the connecting rod.

[0004] To achieve the above objectives, this utility model provides a cam indicator tensioning seat structure, which includes a seat body and an oil pump mounted on the seat body. Hydraulic tensioning sleeves are provided at both ends of the seat body, and the oil pump is connected to the hydraulic tensioning sleeves through a pipeline.

[0005] A pressure sensor is provided on the lower end face of the base, and a mounting base is provided on the pressure sensor. A positioning element is detachably provided on the mounting base, and a positioning hole is provided on the positioning element.

[0006] Preferably, a slide is formed on the mounting base, a clamping block is slidably disposed in the slide, a plug is disposed on the inner wall of the clamping block, and a socket is formed on the side of the positioning member to mate with the plug.

[0007] Preferably, the mounting base has a threaded hole, a locking screw is engaged in the threaded hole, a rotating sleeve is provided on the clamping block, one end of the locking screw is rotatably disposed in the rotating sleeve, and the other end extends out of the mounting base and is connected to a turntable.

[0008] Preferably, the positioning element is a polygonal structure, and each face of the polygonal structure is provided with positioning holes of different diameters.

[0009] Preferably, the base body is further provided with a lead screw nut.

[0010] This utility model provides a tensioning seat structure for a cam indicator motor. The tensioning seat structure includes a seat body and an oil pump mounted on the seat body. Hydraulic tensioning sleeves are provided at both ends of the seat body, and the oil pump is connected to the hydraulic tensioning sleeves through pipes. A pressure sensor is provided on the lower end face of the seat body, and a mounting base is provided on the pressure sensor. A positioning element is detachably provided on the mounting base, and a positioning hole is provided on the positioning element. The cam indicator tensioning seat structure provided by this utility model is applied to a cam indicator, which is mainly used for testing the damping characteristics of shock absorbers. It includes a frame, with the tensioning seat structure located at the upper end of the frame and a lifting seat at the lower end. During testing, the outer cylinder of the shock absorber is fixed to the lifting seat, and the lifting seat is moved up and down by a drive mechanism on the frame. A displacement sensor is installed near the lifting seat in the frame to record the relative displacement distance of the outer cylinder. The upper end of the shock absorber's connecting rod is fixed in a positioning hole. A sliding column is installed on the frame, passing through a hydraulic tensioning sleeve. Before positioning, the height of the seat is adjusted according to the length of the shock absorber. After adjustment, the hydraulic tensioning sleeve is used for locking. This hydraulic tensioning sleeve is a known and commonly used type in the art. A cavity is formed between the inner and outer sleeves of the hydraulic tensioning sleeve. By injecting high-pressure oil, the inner and outer sleeves expand and lock hydraulically. During testing, a pressure sensor records the force data on the positioning component. This pressure sensor is a known and commonly used type in the art.

[0011] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a structural diagram of the tensioning seat structure of the cam indicator mechanism provided by this utility model;

[0014] Figure 2 This is a top view of the tensioner structure of the cam indicator mechanism provided by this utility model;

[0015] Figure 3 This is a side view of the tensioner structure of the cam indicator mechanism provided by this utility model;

[0016] Figure 4 This is a structural diagram of the mounting base in the tensioning seat structure of the cam indicator machine provided by this utility model;

[0017] Figure 5This is a structural diagram of the cam indicator mechanism provided by this utility model.

[0018] Explanation of reference numerals in the attached figures

[0019] 1-Base; 2-Hydraulic tensioning sleeve; 3-Oil pump; 4-Pipeline; 5-Mounting seat; 6-Screw nut; 7-Pressure sensor; 8-Positioning component; 9-Turntable; 10-Clamping block; 11-Plug; 12-Lifting seat; 13-Frame; 14-Drive mechanism. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0021] like Figure 1-5 As shown: This utility model provides a tensioning seat structure for a cam indicator motor. The tensioning seat structure for the cam indicator motor includes a seat body 1 and an oil pump 3 disposed on the seat body 1. Hydraulic tensioning sleeves 2 are disposed at both ends of the seat body 1. The oil pump 3 is connected to the hydraulic tensioning sleeves 2 through pipes 4. A pressure sensor 7 is disposed on the lower end face of the seat body 1. A mounting seat 5 is disposed on the pressure sensor 7. A positioning element 8 is detachably disposed on the mounting seat 5. The positioning element 8 is provided with a positioning hole. The cam indicator tensioning seat structure provided by this utility model is applied to a cam indicator, which is mainly used for testing the damping characteristics of shock absorbers. It includes a frame 13, with the tensioning seat structure located at the upper end of the frame 13. A lifting seat 12 is located at the lower end of the frame 13. During testing, the outer cylinder of the shock absorber is fixed to the lifting seat 12, and the lifting seat 12 is moved up and down by a drive mechanism 14 on the frame 13. A displacement sensor is located in the frame 13 near the lifting seat 12 to record the relative displacement distance of the outer cylinder. The upper end of the shock absorber's connecting rod is fixed to a positioning... Inside the hole, a sliding column is provided on the frame 13. The sliding column passes through the hydraulic tensioning sleeve 2. Before positioning, the height of the seat is adjusted according to the length of the shock absorber. After adjustment, the hydraulic tensioning sleeve is used for locking. The hydraulic tensioning sleeve here is a type known and commonly used in the art. A cavity is formed between the inner and outer sleeves of the hydraulic tensioning sleeve. By injecting high-pressure oil, the inner and outer sleeves are expanded and locked by hydraulic pressure. During the detection process, the pressure sensor can record the force data on the positioning component. The pressure sensor here is a type known and commonly used in the art.

[0022] In a preferred embodiment of this utility model, in order to facilitate the replacement of different positioning components to accommodate different models of connecting rods, a slide is formed on the mounting base 5, and a clamping block 10 is slidably arranged in the slide. A plug 11 is provided on the inner wall of the clamping block 10, and a socket for cooperating with the plug 11 is formed on the side of the positioning component 8.

[0023] In a preferred embodiment of this utility model, to facilitate the displacement of the clamping blocks, a threaded hole is formed in the mounting base 5, and a locking screw is screwed into the threaded hole. A rotating sleeve is provided on the clamping block 10. One end of the locking screw is rotatably disposed in the rotating sleeve, and the other end extends out of the mounting base 5 and is connected to a turntable 9. By rotating the locking screw, the two clamping blocks 10 can be moved closer or further apart, thereby clamping and fixing the positioning member 8.

[0024] In a preferred embodiment of this utility model, the positioning member 8 is a polygonal structure, and each face of the polygonal structure is provided with positioning holes of different diameters. For connecting rods of different sizes, different positioning holes can be rotated and replaced so that they face downwards. During adjustment, the positioning member can be loosened by tightening the locking screw to adjust the angle and direction, and then tightened again.

[0025] In a preferred embodiment of this utility model, a lead screw nut 6 is further provided on the base 1. A drive assembly is provided on the frame 13, and a lead lever is connected to the drive assembly. The drive assembly can drive the lead lever to rotate, and the lead lever passes through the lead screw nut, so that the height of the base 1 can be effectively adjusted.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A cam dynamometer tensioner structure, characterized by, The cam indicator tensioning seat structure includes a seat body (1) and an oil pump (3) mounted on the seat body (1). Hydraulic tensioning sleeves (2) are mounted on both ends of the seat body (1). The oil pump (3) is connected to the hydraulic tensioning sleeves (2) via a pipe (4). A pressure sensor (7) is provided on the lower end face of the seat (1), and a mounting base (5) is provided on the pressure sensor (7). A positioning element (8) is detachably provided on the mounting base (5), and a positioning hole is provided on the positioning element (8).

2. The cam dynamometer tensioner structure of claim 1, wherein A slide is formed on the mounting base (5), and a clamp (10) is slidably arranged in the slide. A plug (11) is provided on the inner wall of the clamp (10), and a socket that mates with the plug (11) is formed on the side of the positioning member (8).

3. The cam dynamometer tensioner structure of claim 2 wherein, The mounting base (5) has a threaded hole, and a locking screw is screwed into the threaded hole. A rotating sleeve is provided on the clamping block (10). One end of the locking screw is rotatably disposed in the rotating sleeve, and the other end extends out of the mounting base (5) and is connected to a turntable (9).

4. The cam dynamometer tensioner structure of claim 3, wherein The positioning element (8) is a polygonal structure, and each face of the polygonal structure is provided with positioning holes of different diameters.

5. The cam dynamometer tensioner structure of claim 4, wherein The seat (1) is also provided with a lead screw nut (6).

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