Mobile damping body pressure testing tool

By designing a mobile damping body pressure testing tool, the problem of poor testing results caused by the fixed stroke of the pressure box was solved, enabling efficient and accurate testing of damping bodies of different specifications, and improving the practicality and testing efficiency of the device.

CN223976820UActive Publication Date: 2026-03-06SHANXI ZHONGYANG IRON & STEEL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In the existing technology, the pressure box of the rolling mill elastic damper has a fixed travel distance, which limits the travel distance when pressure testing dampers of different specifications, thus affecting the testing results.

Method used

Design a mobile damping body testing pressure tool, including a moving frame, a fixed frame, a damping body limiting component, and an adjustment component. By adjusting the distance between the damping body limiting plate and the moving plate, it can adapt to the testing requirements of damping bodies of different specifications. Precise adjustment can be achieved by combining hydraulic drive and electric motor drive.

Benefits of technology

It improves the accuracy and efficiency of testing dampers of different specifications, prevents stroke limitation, enhances the practicality and convenience of the device, saves test preparation time, and extends the service life of the device.

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Abstract

The utility model discloses a movable damping body pressure testing tool, and relates to the technical field of damping body pressure testing. The mobile damping body test pressure tool comprises a mobile frame and a pressure sensor, and the mobile frame is fixedly connected with a fixed frame; the adjusting assembly comprises a movable plate limiting block, a movable plate is arranged on the surface of the fixing frame, a movable plate limiting groove is formed in the surface of the movable plate, a plurality of limiting grooves are formed in the left side and the right side of the movable plate, the left side and the right side of the fixing frame are sleeved with limiting plates, and the interiors of the two limiting plates are in threaded connection with fixing bolts. By adjusting the distance between the two damping body limiting plates and the distance between the two movable plates, pressure testing can be conveniently carried out on damping bodies of different specifications, and the situation that when pressure testing is carried out on a long damping body, the distance between the two movable plates is fixed, consequently, the stroke of a hydraulic rod is limited, and the accuracy of damping body detection is affected is prevented. The practicability and convenience of the device are improved, and the detection efficiency of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of damping body pressure testing technology, and in particular to a mobile damping body pressure testing tool. Background Technology

[0002] In the steel industry, elastic damping shock absorbers are commonly used devices for adjusting the roll gap of rolling mills. They are widely used in various types of rolling mills, such as arch-type rolling mills and short-stress rolling mills. Due to their easy installation, they have become a popular balancing device for steel mills. A Chinese utility model patent, authorized announcement number "CN211121851U", discloses a special device for calibrating elastic damping bodies. The device includes a chassis composed of two plates connected by a connecting assembly. Lifting components are installed at the four corners of the chassis bottom. A power supply box is located on one side of the chassis bottom. A base is installed on the top surface of the chassis, with baffles fixed to both ends. Each baffle has a limiting plate on its outer side, and the inner side of each limiting plate contacts the baffle. A special seat assembly is fixed to the inner side of one baffle, and the special seat assembly contacts one end of the elastic damper. A pressure device is fixed to the inner side of the other baffle, and a pressure test sensor is installed between the pressure device and the elastic damper.

[0003] The above technical solution uses an adjustable lifting component, which facilitates the use of a special device for verifying elastic damping bodies. The support base is arc-shaped, and one end of the elastic damping body can fit into the support base, improving verification efficiency. However, the above technical solution still has certain defects. Since the travel of the pressure box is fixed and the elastic damping bodies of the rolling mill have different specifications, when pressure testing is performed on damping bodies of different specifications, the fixed structure of the chassis will limit the travel of the pressure box when pressure testing is performed on larger damping bodies, affecting the pressure testing of the damping body and reducing the effectiveness of the damping body testing. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a mobile damping body testing pressure tool that can solve the problem that when pressure testing a damping body with a large specification is performed, the travel of the pressure box is limited due to the fixed travel of the pressure box and the different specifications of the elastic damping bodies of the rolling mill, and the fixed structure of the chassis. This affects the pressure testing of the damping body and reduces the effectiveness of the damping body testing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mobile damping body pressure testing tool, comprising a mobile frame and a pressure sensor, wherein a fixed frame is fixedly connected to the mobile frame;

[0006] Damping body limiting assembly, the damping body limiting assembly is mounted on the fixed frame;

[0007] Adjusting component, the adjusting component is arranged on the fixing frame. The adjusting component includes a movable plate limiting block which is fixedly connected to the surface of the fixing frame. There is a movable plate on the surface of the fixing frame. A movable plate limiting groove is formed on the surface of the movable plate. Both the movable plate limiting block and the movable plate limiting groove are in the shape of the Chinese character '丰' and they are snap - connected.

[0008] A plurality of limiting grooves are formed on both the left and right sides of the movable plate. Limiting plates are sleeved on both the left and right sides of the fixing frame. A plurality of limiting blocks are fixedly connected to one end of each of the two limiting plates close to the movable plate.

[0009] The plurality of limiting blocks are respectively snap - connected with the corresponding limiting grooves. Fixing bolts are threadedly connected inside both of the two limiting plates, and the two limiting plates are fixed to the fixing frame through the fixing bolts.

[0010] Preferably, the damping body limiting component includes a fixing frame which is fixedly connected to the surface of the movable plate. A driving motor is fixedly connected to the upper end of the fixing frame. The output end of the driving motor is fixedly connected with a first threaded rod which is rotatably connected to the fixing frame. A slider is threadedly sleeved on the surface of the first threaded rod, and the slider is slidably connected to the fixing frame.

[0011] A turntable is rotatably connected to the front side of the slider. A connecting bracket is fixedly connected to the surface of the turntable. A second threaded rod is threadedly connected inside the connecting bracket. A damping body limiting plate is rotatably connected to the surface of the second threaded rod. The damping body limiting plate is arc - shaped, and a rubber pad is fixedly connected to the inner side of the damping body limiting plate.

[0012] Preferably, the connecting bracket, the second threaded rod, the damping body limiting plate, and the rubber pad are all provided in two groups and are symmetrically arranged on the surface of the turntable.

[0013] Preferably, the movable plate, the limiting grooves, and the movable plate limiting grooves are all provided in two groups and are symmetrically arranged on the surface of the fixing frame.

[0014] Preferably, a hydraulic rod is fixedly connected inside the right - hand movable plate, and a pressure sensor is fixedly connected to the output end of the hydraulic rod.

[0015] Preferably, a distribution box and a hydraulic drive box are fixedly connected to the surface of the movable frame. A controller for controlling the start and stop of the hydraulic drive box and the driving motor is installed inside the distribution box.

[0016] A pressure controller adapted to the limiting block is installed inside the distribution box.

[0017] Preferably, a hydraulic pump and its driving device are installed inside the hydraulic drive box.

[0018] Preferably, a frame handle is fixedly connected to the right end of the movable frame, and four universal wheels are fixedly installed at the bottom of the movable frame.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This movable damping body pressure testing tool, by adjusting the distance between the two damping body limiting plates and the distance between the two movable plates, facilitates the testing of damping bodies of different specifications. It prevents the fixed distance between the two movable plates from limiting the stroke of the hydraulic rod when testing the pressure of a longer damping body, thus affecting the accuracy of the damping body test. This improves the practicality and convenience of the device and enhances its testing efficiency. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the structure of a mobile damping body pressure testing tool according to the present invention;

[0023] Figure 2 This is a schematic diagram of the limiting plate of this utility model;

[0024] Figure 3 This is a schematic diagram of the movable plate limiting block of this utility model;

[0025] Figure 4 This is a schematic diagram of the movable plate of this utility model;

[0026] Figure 5 This is a schematic diagram of the rubber pad of this utility model;

[0027] Figure 6 This is a schematic diagram of the pressure sensor of this utility model.

[0028] Reference numerals: 1. Movable frame; 2. Electrical distribution box; 3. Hydraulic drive box; 4. Frame handle; 5. Casters; 6. Fixed frame; 7. Movable plate limiting block; 8. Movable plate; 9. Limiting plate; 10. Limiting groove; 11. Limiting block; 12. Movable plate limiting groove; 13. Fixed frame; 14. Drive motor; 15. First threaded rod; 16. Slider; 17. Turntable; 18. Connecting bracket; 19. Second threaded rod; 20. Damping body limiting plate; 21. Rubber pad; 22. Hydraulic rod; 23. Pressure sensor. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, rear, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or suggesting that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present utility model.

[0031] In the description of the present utility model, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and the second are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or suggesting relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0032] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0033] Please refer to Figure 1-6 , the present utility model provides a technical solution: a mobile damping body test pressure tool, including a mobile frame 1 and a pressure sensor 23. A fixed frame 6 is fixedly connected to the mobile frame 1, a damping body limiting component, the damping body limiting component is arranged on the fixed frame 6, an adjusting component, the adjusting component is arranged on the fixed frame 6. The adjusting component includes a movable plate limiting block 7, the movable plate limiting block 7 is fixedly connected to the surface of the fixed frame 6. A movable plate 8 is arranged on the surface of the fixed frame 6. A movable plate limiting groove 12 is formed on the surface of the movable plate 8. Both the movable plate limiting block 7 and the movable plate limiting groove 12 are in the shape of the Chinese character "丰". The movable plate limiting block 7 and the movable plate limiting groove 12 are clamped. A plurality of limiting grooves 10 are formed on both the left and right sides of the movable plate 8. Limiting plates 9 are sleeved on both the left and right sides of the fixed frame 6. A plurality of limiting blocks 11 are fixedly connected to one end of each of the two limiting plates 9 close to the movable plate 8. The plurality of limiting blocks 11 are respectively clamped with the corresponding limiting grooves 10. Fixing bolts are threadedly connected inside both of the two limiting plates 9. The two limiting plates 9 are fixed to the fixed frame 6 through the fixing bolts.

[0034] The damping body limiting assembly includes a fixed frame 13, which is fixedly connected to the surface of the movable plate 8. A drive motor 14 is fixedly connected to the upper end of the fixed frame 13. A first threaded rod 15 is fixedly connected to the output end of the drive motor 14. The first threaded rod 15 is rotatably connected to the fixed frame 13. A slider 16 is threadedly sleeved on the surface of the first threaded rod 15. The slider 16 is slidably connected to the fixed frame 13. A turntable 17 is rotatably connected to the front side of the slider 16. A connecting bracket 18 is fixedly connected to the surface of the turntable 17. A second threaded rod 19 is threadedly connected inside the connecting bracket 18. A damping body limiting plate 20 is rotatably connected to the surface of the second threaded rod 19. The damping body limiting plate 20 is arc-shaped. A rubber pad 21 is fixedly connected to the inner side of the damping body limiting plate 20.

[0035] The connecting bracket 18, the second threaded rod 19, the damping body limiting plate 20, and the rubber pad 21 are each arranged in two sets symmetrically on the surface of the turntable 17.

[0036] The number of movable plate 8, limiting groove 10 and movable plate limiting groove 12 are all symmetrically arranged in two sets on the surface of fixed frame 6.

[0037] A hydraulic rod 22 is fixedly connected inside the movable plate 8 on the right side, and a pressure sensor 23 is fixedly connected to the output end of the hydraulic rod 22.

[0038] The surface of the mobile frame 1 is fixedly connected to the power distribution box 2 and the hydraulic drive box 3. The power distribution box 2 is equipped with a controller that controls the start and stop of the hydraulic drive box 3 and the drive motor 14. The power distribution box 2 is also equipped with a pressure controller that is compatible with the limit block 11. The power distribution box 2 can be connected to an external power source to provide power to the device.

[0039] The hydraulic drive box 3 contains a hydraulic pump and its drive unit.

[0040] The right end of the mobile frame 1 is fixedly connected to the frame handle 4, and the bottom of the mobile frame 1 is fixedly installed with four casters 5.

[0041] When using this device, first push the handle 4 of the frame to move the mobile frame 1 to the work location via the casters 5, and connect the power distribution box 2 to the external power supply to provide power to the drive motor 14 and the hydraulic drive box 3. Place the damping body that needs to be tested on the inner side of the two damping body limiting plates 20, rotate the second threaded rod 19 to drive the damping body limiting plates 20 to slide on the surface of the turntable 17, and limit the damping body by the two damping body limiting plates 20 moving closer to each other. Start the drive motor 14 to drive the first threaded rod 15 to rotate, and the first threaded rod 15 drives the slider 16 to slide inside the fixed frame 13, while driving the turntable 17 to move and thus driving the damping body to move, which facilitates the adjustment of the position and angle of the damping body, and makes it easy to move the damping body to the center of the pressure sensor 23. This prevents the damping body from deviating from the center of the turntable 17 during the clamping process of the two damping body limiting plates 20, so as not to affect the detection of the damping body by the pressure sensor 23, improve the accuracy of the detection, and improve the detection efficiency.

[0042] The hydraulic rod 22 is extended by the hydraulic drive box 3, which moves the pressure sensor 23 so that the pressure sensor 23 comes into contact with the damping body. The pressure sensor 23 is moved by the hydraulic rod 22, which makes it easier for the pressure sensor 23 to squeeze the damping body, so as to facilitate pressure detection of the damping body. The pressure data is then transmitted to the pressure controller inside the distribution box 2 for data processing.

[0043] When using this device to test the pressure of the damping body, since there are various specifications of damping bodies, including different diameters and lengths, when it is necessary to test damping bodies of different diameters, since the damping body limiting plate 20 is arc-shaped, it is only necessary to adjust the distance between the two damping body limiting plates 20 to limit the damping bodies of different diameters. Then, by repeating the above process, the pressure of damping bodies of different diameters can be tested.

[0044] When it is necessary to test damping bodies of different lengths, use an electric wrench to remove the fixing bolts connecting the limiting plate 9 and the fixed frame 6, separate the limiting plate 9 from the fixed frame 6, and release the limiting plate 9 and the limiting block 11 from the movable plate 8 and the limiting groove 10. Through the engagement of the movable plate limiting block 7 and the movable plate limiting groove 12, the distance between the two movable plates 8 can be adjusted according to the actual length of the damping body being tested. Then, the limiting plate 9 is placed on the surface of the fixed frame 6, and the limiting block 11 is engaged with the corresponding limiting groove 10, so that the limiting plate 9 can limit the movable plate 8 and prevent the movable plate 8 from shifting during the use of the device, which would affect the testing effect of the damping body and the accuracy of the test data. At the same time, use fixing bolts to fix the limiting plate 9 to the surface of the fixed frame 6, so as to fix the two movable plates 8. Then, repeat the above process to test the pressure of damping bodies of different lengths.

[0045] When testing damping bodies of different diameters and lengths, the distance between the two damping body limiting plates 20 and the distance between the two movable plates 8 are adjusted according to the specifications of the damping body to be tested, which facilitates the testing of the damping body, improves the practicality and convenience of the device, and increases the testing efficiency of the device.

[0046] Furthermore, by adjusting the distance between the two damping body limiting plates 20 and the distance between the two movable plates 8, it is convenient to test the pressure of damping bodies of different specifications. This prevents the fixed distance between the two movable plates 8 from limiting the stroke of the hydraulic rod 22 when testing the pressure of a longer damping body, thus affecting the accuracy of the damping body test. This improves the practicality and convenience of the device and enhances its testing efficiency.

[0047] The omnidirectional wheels 5 facilitate the movement of the device to the work site without disassembly and reinstallation, greatly saving test preparation time and improving test efficiency. When the device malfunctions or needs calibration, it can be easily moved to the repair or calibration location for handling without performing complex operations on the spot, thus enhancing the practicality and convenience of the device and extending its service life.

[0048] Structural Description: Mobile Frame 1: Serves as the carrier of the entire device, facilitating device movement. It is fixedly connected to the power distribution box 2 and hydraulic drive box 3 on the surface, and the right end is fixedly connected to the frame handle 4. Four casters 5 are installed at the bottom.

[0049] Pressure sensor 23: Used to detect the pressure on the damping body and transmit the pressure data to the pressure controller inside the distribution box 2;

[0050] Fixed frame 6: Fixedly connected to the movable frame 1, providing an installation base for other components, and the surface is equipped with components such as movable plate limit block 7 and movable plate 8;

[0051] Fixed frame 13: Fixed to the surface of movable plate 8, providing installation positions for components such as drive motor 14 and first threaded rod 15;

[0052] Drive motor 14: The output end is connected to the first threaded rod 15, which drives it to rotate, thereby realizing the movement of slider 16 and damping body, which facilitates the adjustment of the position of damping body;

[0053] First threaded rod 15: Rotatably connected to fixed frame 13, with surface threaded sleeve of slider 16, rotates under the drive of drive motor 14, so that slider 16 slides within fixed frame 13;

[0054] Slider 16: It is slidably connected to the fixed frame 13 and rotatably connected to the turntable 17 on the front side. It moves under the drive of the first threaded rod 15, which in turn moves the turntable 17 and the damping body.

[0055] Rotary disk 17: The connecting bracket 18 is fixedly connected to its surface and moves under the drive of the slider 16 to facilitate the adjustment of the position of the damping body;

[0056] Connecting bracket 18: The second threaded rod 19 is connected internally by threads. There are two groups of them symmetrically arranged on the surface of the rotary disk 17, which are used to install the second threaded rod 19 and the damping body limiting plate 20;

[0057] Second threaded rod 19: The damping body limiting plate 20 is rotatably connected to its surface. When rotating, it drives the damping body limiting plate 20 to slide on the surface of the rotary disk 17 to realize the limitation of the damping body;

[0058] Damping body limiting plate 20: It is arc-shaped, and the rubber pad 21 is fixedly connected to its inner side. By adjusting the distance, it limits damping bodies with different diameters. There are two groups of them symmetrically arranged on the surface of the rotary disk 17;

[0059] Rubber pad 21: It increases the friction with the damping body, protects the surface of the damping body, and is also provided inside the right movable plate 8 at the same time. Its output end is connected to the hydraulic rod 22;

[0060] Movable plate limiting block 7: It is fixed on the surface of the fixed frame 6 and is engaged with the movable plate limiting groove 12 on the surface of the movable plate 8. It is in the shape of "丰" and is used to limit the moving direction of the movable plate 8 and can adjust the distance between the movable plates 8 according to the length of the damping body;

[0061] Movable plate 8: The movable plate limiting groove 12 and multiple limiting grooves 10 are opened on its surface. There are two groups of them symmetrically arranged on the surface of the fixed frame 6, which are used to install the damping body limiting components and can adjust the position according to the length of the damping body;

[0062] Limiting groove 10: It is opened on the left and right sides of the movable plate 8 and is engaged with the limiting block 11 on the limiting plate 9 to realize the limitation of the movable plate 8;

[0063] Limiting plate 9: It is sleeved on the left and right sides of the fixed frame 6. Multiple limiting blocks 11 are fixedly connected to one end close to the movable plate 8 and are fixed to the fixed frame 6 through fixing bolts to limit the movable plate 8 and prevent it from shifting;

[0064] Limiting block 11: It is fixed on the limiting plate 9 and is engaged with the limiting groove 10 to limit the movable plate 8;

[0065] Movable plate limiting groove 12: It is opened on the surface of the movable plate 8 and is engaged with the movable plate limiting block 7. It is in the shape of "丰" to limit the moving direction of the movable plate 8 and can assist in adjusting the distance between the movable plates 8;

[0066] Distribution box 2: The controller for controlling the start and stop of the hydraulic drive box 3 and the drive motor 14, as well as the pressure controller adapted to the limiting block 11, are installed inside. The external power supply provides power for the device and processes the pressure data transmitted by the pressure sensor 23;

[0067] Hydraulic drive box 3: The hydraulic pump and its drive device are installed inside to provide power for the extension and retraction of the hydraulic rod 22, so that the pressure sensor 23 contacts the damping body and performs pressure detection;

[0068] Frame handle 4: fixed to the right end of the mobile frame 1, making it easy to push the mobile frame 1 to move;

[0069] 5 omnidirectional wheels: Installed at the bottom of the mobile frame 1, there are four in total, which facilitates the movement of the device to the work site, saves test preparation time, improves test efficiency, and facilitates device failure repair or calibration;

[0070] Hydraulic rod 22: The right end is connected to rubber pad 21. It extends or shortens under the action of hydraulic drive box 3, which drives pressure sensor 23 to move and squeeze the damping body to realize pressure detection.

[0071] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mobile dampener test pressure tool, characterized by: It includes a moving frame (1) and a pressure sensor (23), and a fixed frame (6) is fixedly connected to the moving frame (1); A damping body limiting component, which is arranged on the fixed frame (6); An adjusting component, which is arranged on the fixed frame (6). The adjusting component includes a movable plate limiting block (7), and the movable plate limiting block (7) is fixedly connected to the surface of the fixed frame (6). A movable plate (8) is arranged on the surface of the fixed frame (6). A movable plate limiting groove (12) is formed on the surface of the movable plate (8). Both the movable plate limiting block (7) and the movable plate limiting groove (12) are in the shape of "丰", and the movable plate limiting block (7) and the movable plate limiting groove (12) are clamped; A plurality of limiting grooves (10) are formed on both the left and right sides of the movable plate (8), and limiting plates (9) are sleeved on both the left and right sides of the fixed frame (6). A plurality of limiting blocks (11) are fixedly connected to one end of each of the two limiting plates (9) close to the movable plate (8); The plurality of limiting blocks (11) are respectively clamped with the corresponding limiting grooves (10), and fixing bolts are threadedly connected inside both of the two limiting plates (9). The two limiting plates (9) are fixed to the fixed frame (6) through the fixing bolts.

2. The mobile dolly test pressure tool of claim 1, wherein: The damping body limiting component includes a fixed frame (13), and the fixed frame (13) is fixedly connected to the surface of the movable plate (8). A driving motor (14) is fixedly connected to the upper end of the fixed frame (13). The output end of the driving motor (14) is fixedly connected to a first threaded rod (15). The first threaded rod (15) is rotatably connected to the fixed frame (13). A slider (16) is threadedly sleeved on the surface of the first threaded rod (15), and the slider (16) is slidably connected to the fixed frame (13); A turntable (17) is rotatably connected to the front side of the slider (16). A connecting bracket (18) is fixedly connected to the surface of the turntable (17). A second threaded rod (19) is threadedly connected inside the connecting bracket (18). A damping body limiting plate (20) is rotatably connected to the surface of the second threaded rod (19). The damping body limiting plate (20) is arc-shaped, and a rubber pad (21) is fixedly connected to the inner side of the damping body limiting plate (20).

3. The mobile dolly test pressure tool of claim 2, wherein: The connecting bracket (18), the second threaded rod (19), the damping body limiting plate (20), and the rubber pad (21) are all provided in two groups and are symmetrically arranged on the surface of the turntable (17).

4. The mobile dolly test pressure tool of claim 1, wherein: The movable plate (8), the limiting grooves (10), and the movable plate limiting grooves (12) are all provided in two groups and are symmetrically arranged on the surface of the fixed frame (6).

5. The mobile dolly test pressure tool of claim 1, wherein: A hydraulic rod (22) is fixedly connected to the inside of the movable plate (8) on the right side. The output end of the hydraulic rod (22) is fixedly connected to a pressure sensor (23).

6. The mobile dolly test pressure tool of claim 1, wherein: A distribution box (2) and a hydraulic drive box (3) are fixedly connected to the surface of the moving frame (1). A controller for controlling the start and stop of the hydraulic drive box (3) and the driving motor (14) is installed inside the distribution box (2); A pressure controller adapted to the limiting block (11) is installed inside the distribution box (2).

7. The mobile dolly test pressure tool of claim 6, wherein: A hydraulic pump and its driving device are installed inside the hydraulic drive box (3).

8. The mobile dolly test pressure tool of claim 1, wherein: The right end of the moving frame (1) is fixedly connected with a frame handle (4), and the bottom of the moving frame (1) is fixedly installed with four universal wheels (5).

Citation Information

Patent Citations

  • Special device for checking elastic damping body

    CN211121851U