Fatigue test platform for hydraulic element

Abstract

The fatigue test platform for the hydraulic element comprises a base, a display screen and a plurality of control buttons which are electrically connected are arranged on one side of the base, a test board is arranged in the middle of the upper portion of the base, a supporting frame is arranged on one side of the upper portion of the base, and the control buttons are arranged on the supporting frame. A supporting seat is arranged at the position, located in the base, of the bottom of the testing table, a clamping mechanism is arranged in the testing table, a movable support of an L-shaped structure is arranged above a supporting frame, and a hydraulic cylinder and a first telescopic cylinder are arranged below the two ends of the movable support correspondingly; the bottom of the hydraulic cylinder and the bottom of the electric telescopic cylinder are connected with testing pressing plates, corresponding distance sensors are arranged on one sides of the upper portions of the testing pressing plates and the lower end face of the movable support, the middle of the movable support is rotationally connected with the middle of the supporting frame through a rotating shaft, and a push rod is arranged at the position, located in the base, of the bottom of the rotating shaft. And one side of the push rod is rotationally connected with a second telescopic cylinder.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic components, and in particular relates to a fatigue testing platform for hydraulic components. Background Art

[0002] Hydraulic systems are engineering systems that use fluids to transfer energy and are widely used in industry and machinery. A hydraulic system typically consists of a hydraulic energy source, actuators, control elements, and auxiliary components. A hydraulic pump is typically the energy source for a hydraulic system, converting mechanical energy into hydraulic energy. Actuators in a hydraulic system primarily include hydraulic cylinders and hydraulic motors, which convert controlled hydraulic energy into mechanical motion or rotation. Control elements in a hydraulic system include various valves and control devices, such as hydraulic valves and hydraulic control systems, that control the transfer of hydraulic energy and the movement of the actuators. Hydraulic systems also include auxiliary components such as accumulators, oil tanks, oil filters, and piping to assist in the operation and maintenance of the hydraulic system. By controlling and distributing hydraulic energy, hydraulic systems enable precise force and motion control. They offer advantages such as fast response, high transmission efficiency, and high load-bearing capacity. They are widely used in lifting machinery, metallurgical equipment, construction machinery, aerospace, and other fields.

[0003] Since hydraulic components need to withstand large forces for a long time during use, fatigue damage will occur after long-term use. Therefore, it is necessary to perform fatigue testing on the hydraulic components during the production process, and then perform cyclic loading according to the test plan, record the stress, deformation, temperature and other related data of the components, and evaluate the fatigue of the hydraulic components. However, most existing hydraulic component fatigue testing devices still require manual recording of the data required for the test during use. Not only is the data recording prone to errors, but it is also prone to mistakes. In addition, the existing hydraulic component testing platform can only test a single performance indicator of the test component. Other tests require the use of additional testing devices, which is not only time-consuming but also takes up extra space. Utility Model Content

[0004] The technical problem to be solved by the present invention is that most of the existing hydraulic component fatigue testing devices use manual data recording, which is not only prone to errors, but also prone to errors in data recording; in addition, the existing hydraulic component fatigue testing devices have a single function, and during the testing process, not only more testing devices are required, but also more space is required.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a fatigue testing platform for hydraulic components, comprising a base, one side of the base is provided with an electrically connected display screen and multiple control buttons, a test bench is provided in the middle above the base, a support frame is provided on one side above the base, the bottom of the test bench is located inside the base and a support seat is provided, a clamping mechanism is provided inside the test bench, an L-shaped movable bracket is provided above the support frame, a hydraulic cylinder and a first telescopic cylinder are respectively provided below the two ends of the movable bracket, the bottoms of the hydraulic cylinder and the electric telescopic cylinder are both connected to a test pressure plate, a corresponding distance sensor is provided on the upper side of the test pressure plate and the lower end face of the movable bracket, the middle of the movable bracket is rotatably connected to the middle of the support frame through a rotating shaft, the bottom of the rotating shaft is located in the base and a push rod is provided, and one side of the push rod is rotatably connected to the second telescopic cylinder.

[0006] As an improvement, the support seat is a solid structure, and the bottom of the support seat is against the lower end surface of the base, and the middle of the support seat and the middle of the side viewing platform are on the same axis.

[0007] As an improvement, the test bench is provided with a fixing groove at the clamping mechanism, and the fixing groove matches the shape of the test pressure plate. The clamping mechanism includes two symmetrically arranged clamping blocks, and a V-shaped clamping groove is provided on the opposite side of the two clamping blocks, and a plurality of guide rods are provided on the other side. The plurality of guide rods are slidably connected to the test bench, and a spring is provided between the middle guide rod and the placement groove.

[0008] As an improvement, the movable bracket is a 90-degree L-shaped structure as a whole, and the bending part of the movable bracket is located in the middle of the support frame, and the bending part is fixedly connected to the rotating shaft.

[0009] As an improvement, the two ends of the movable bracket are of the same length, and the hydraulic cylinder and the first telescopic cylinder fixed to the movable bracket are located directly above the test bench.

[0010] As an improvement, the first telescopic cylinder and the second telescopic cylinder are both electric telescopic cylinders, wherein the driving end of the first telescopic cylinder is located at the top of the movable bracket and is connected to a driving motor through a gearbox.

[0011] As an improvement, the push rod is fixedly connected to the bottom of the rotating shaft, and there is a 45-degree angle between the push rod and the side of the base close to the rotating shaft. The bottom side of the second telescopic cylinder is connected to the internal rotation of the base through an extension frame, and the push rod and the extension frame are tilted.

[0012] The advantages of this utility model compared with the prior art are:

[0013] 1. When in use, this fatigue test platform can achieve electric control and data recording by connecting the hydraulic cylinder, drive motor, reduction box and distance sensor to the display screen. This eliminates the need for manual data recording. Data can be recorded by simply exporting the data from the computer where the display screen is located.

[0014] 2. This fatigue test platform is replaced by an L-shaped movable bracket and the connected hydraulic cylinder and the first telescopic cylinder, thereby realizing force testing and frequency testing of hydraulic components, reducing the time required for replacing the test device and the space occupied by the test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a fatigue testing platform for hydraulic components in the utility model.

[0016] Figure 2 This is an enlarged view of the structure at point A of a fatigue testing platform for hydraulic components in the present utility model.

[0017] Figure 3 This is a cross-sectional three-dimensional structural diagram of a fatigue testing platform for hydraulic components according to the present invention.

[0018] Figure 4 This is a diagram of the internal structure of a fatigue testing platform for hydraulic components in the utility model.

[0019] Figure 5 This is a transformation structure diagram of a fatigue testing platform for hydraulic components in the utility model.

[0020] As shown in the figure: 1. Base; 2. Display screen; 3. Multiple control buttons; 4. Test bench; 5. Support frame; 6. Support seat; 7. Movable bracket; 8. Hydraulic cylinder; 9. First telescopic cylinder; 10. Test plate; 11. Distance sensor; 12. Rotating shaft; 13. Push rod; 14. Second telescopic cylinder; 15. Fixing slot; 16. Clamping block; 17. Clamping slot; 18. Multiple guide rods; 19. Spring; 20. Gearbox; 21. Drive motor; 22. Extension frame DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] As the instruction manual Figure 1 As shown, a fatigue testing platform for hydraulic components includes a base 1, one side of the base 1 is provided with an electrically connected display screen 2 and a plurality of control buttons 3, a test bench 4 is provided in the middle above the base 1, a support frame 5 is provided on one side above the base 1, a clamping mechanism is provided inside the test bench 4, an L-shaped movable bracket 7 is provided above the support frame 5, a hydraulic cylinder 8 and a first telescopic cylinder 9 are provided below both ends of the movable bracket 7 respectively, the two ends of the movable bracket 7 are the same length, and the hydraulic cylinder 8 and the first telescopic cylinder 9 fixed to the movable bracket 7 are located directly above the test bench 4, the first telescopic cylinder 9 is an electric telescopic cylinder, the driving end of the first telescopic cylinder 9 is located at the top of the movable bracket 7 and is connected to a driving motor 21 through a gearbox 20, the bottom of the hydraulic cylinder 8 and the electric telescopic cylinder are both connected to a test pressure plate 10, and a corresponding distance sensor 11 is provided between the upper side of the test pressure plate 10 and the lower end surface of the movable bracket 7.

[0025] As the instruction manual Figure 2 As shown, the test bench 4 is provided with a fixing groove 15 at the clamping mechanism, and the fixing groove 15 matches the shape of the test platen 10. The clamping mechanism includes two symmetrically arranged clamping blocks 16, and a V-shaped clamping groove 17 is provided on the opposite side of the two clamping blocks 16, and a plurality of guide rods 18 are provided on the other side. The plurality of guide rods 18 are slidably connected to the test bench 4, and a spring 19 is provided between the middle guide rod and the placement groove.

[0026] As the instruction manual Figure 3-5As shown, the bottom of the test bench 4 is located inside the base 1 and is provided with a support base 6. The support base 6 is a solid structure, and the bottom of the support base 6 is against the lower end surface inside the base 1. The middle of the support base 6 and the middle of the side viewing platform are on the same axis. The middle of the movable bracket 7 is rotatably connected to the middle of the support frame 5 through the rotating shaft 12. The movable bracket 7 is a 90-degree L-shaped structure as a whole. The bending part of the movable bracket 7 is located in the middle position of the support frame 5, and the bending part is fixedly connected to the rotating shaft 12. The bottom of the rotating shaft 12 is located in the base 1 and is provided with a push rod 13. One side of the push rod 13 is rotatably connected to the second telescopic cylinder 14. The second telescopic cylinder 14 is an electric telescopic cylinder. The push rod 13 is fixedly connected to the bottom of the rotating shaft 12, and there is a 45-degree angle between the push rod 13 and the side surface of the base 1 close to the rotating shaft 12. The bottom side of the second telescopic cylinder 14 is rotatably connected to the inside of the base 1 through an extension frame 22, and the push rod 13 and the extension frame 22 are tilted.

[0027] During the specific implementation of the present invention, the push rod 13 at the bottom of the rotating shaft 12 is pushed by the extension and retraction of the second telescopic cylinder 14, thereby adjusting the rotation of the movable bracket 7, adjusting the position of the hydraulic cylinder 8 and the first telescopic cylinder 9, and testing the hydraulic components on the test bench 4 in different directions of the hydraulic cylinder 8 and the first telescopic cylinder 9. The force size and number of the hydraulic components are tested by the hydraulic cylinder 8, the number of times the hydraulic components are compressed is recorded by the second telescopic cylinder 14, and the extension speed of the first telescopic cylinder 9 can be adjusted by the reduction gear box; the distance of the distance sensor 11 is changed by the extension and retraction of the hydraulic cylinder 8 and the first telescopic cylinder 9, so that the number of distance changes is recorded, thereby achieving the recording of fatigue times, and the extension force of the hydraulic cylinder 8 and the second telescopic cylinder 14 itself is recorded, so as to achieve the purpose of recording the output force.

[0028] The above description of the present invention and its embodiments is non-limiting. The specific embodiments shown in the specific embodiments are only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without creatively designing a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A fatigue test platform for hydraulic components, comprising a base, a display screen and a plurality of control buttons electrically connected are arranged on one side of the base, a test bench is arranged in the middle of the upper part of the base, and a support frame is arranged on one side above the base, characterized in that: The bottom of the test bench is located inside the base and a support seat is provided, the inside of the test bench is provided with a clamping mechanism, an L-shaped movable bracket is provided above the support frame, a hydraulic cylinder and a first telescopic cylinder are respectively provided below both ends of the movable bracket, the bottoms of the hydraulic cylinder and the electric telescopic cylinder are connected to a test platen, a corresponding distance sensor is provided on one side above the test platen and the lower end surface of the movable bracket, the middle of the movable bracket is rotatably connected to the middle of the support frame through a rotating shaft, a push rod is provided at the bottom of the rotating shaft located inside the base, and one side of the push rod is rotatably connected to the second telescopic cylinder.

2. A fatigue testing platform for hydraulic components according to claim 1, characterized in that: The support seat is a solid structure, and the bottom of the support seat is against the lower end surface in the base, and the middle of the support seat and the middle of the side viewing platform are on the same axis.

3. A fatigue testing platform for hydraulic components according to claim 1, characterized in that: The test bench is provided with a fixing groove at the clamping mechanism, and the fixing groove matches the shape of the test platen. The clamping mechanism includes two symmetrically arranged clamping blocks, and a V-shaped clamping groove is arranged on one side opposite to the other of the two clamping blocks, and a plurality of guide rods are arranged on the other side. The plurality of guide rods are slidably connected to the test bench, and a spring is arranged between the middle guide rod and the placement groove.

4. A fatigue testing platform for hydraulic components according to claim 1, characterized in that: The movable bracket is an L-shaped structure with an angle of 90 degrees as a whole, and the bending part of the movable bracket is located in the middle of the support frame, and the bending part is fixedly connected to the rotating shaft.

5. A fatigue testing platform for hydraulic components according to claim 1, characterized in that: The two ends of the movable bracket have the same length, and the hydraulic cylinder and the first telescopic cylinder fixed to the movable bracket are located directly above the test bench.

6. A fatigue testing platform for hydraulic components according to claim 1, characterized in that: The first telescopic cylinder and the second telescopic cylinder are both electric telescopic cylinders, wherein the driving end of the first telescopic cylinder is located at the top of the movable bracket and is connected to a driving motor through a gearbox.

7. A fatigue testing platform for hydraulic components according to claim 1, characterized in that: The push rod is fixedly connected to the bottom of the rotating shaft, and there is a 45-degree angle between the push rod and the side of the base close to the rotating shaft. The bottom side of the second telescopic cylinder is connected to the internal rotation of the base through an extension frame, and the push rod and the extension frame are inclined.

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