Hydraulic cylinder sealing performance detection mechanism

Abstract

The utility model discloses a hydraulic cylinder sealing performance detection mechanism in the hydraulic cylinder detection field, comprising a workbench, a water tank fixedly connected to the middle of the top of the workbench, a mounting rack fixedly connected to the rear portion of the top of the workbench, and mounting plates fixedly connected to the left and right sides of the bottom of the mounting rack. According to the hydraulic cylinder sealing performance detection mechanism, the hydraulic cylinder is fixed through the clamping assembly, gas is introduced into the hydraulic cylinder, a double-shaft motor is started, and a threaded rod is driven to rotate, so that a sliding block drives connecting seats to be away from each other, and a deflection plate deflects in the vertical direction; the sealing performance of the hydraulic cylinders is judged by observing whether bubbles are generated in the water tank or not, so that the multiple hydraulic cylinders can be conveniently detected at a time, the detection efficiency is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder testing technology, specifically a hydraulic cylinder sealing testing mechanism. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, a speed reduction device can be eliminated, and there is no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. During the production process of hydraulic cylinders, it is necessary to perform airtightness testing.

[0003] Chinese patent CN213091087U discloses a sealing performance testing device for finished hydraulic cylinders. This device has a simple structure, is easy to operate, and provides clear testing features. It is suitable for batch operations and can comprehensively test the airtightness of hydraulic cylinders, preventing poorly airtight cylinders from being mixed with qualified products, thus improving product quality and practicality. The device includes a worktable, a first cylinder, a piston, a push plate, a water tank, and a fixed beam. A baffle is installed at the top of the worktable, and a vertical plate is installed at the top of the worktable, located in front of the baffle. A lifting device is installed at the bottom of the worktable. However, the aforementioned patent can only test one hydraulic cylinder at a time, resulting in low testing efficiency. Therefore, we propose a hydraulic cylinder sealing performance testing mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic cylinder sealing performance testing mechanism to solve the problem mentioned in the background art that only one hydraulic cylinder can be tested at a time, resulting in low testing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder sealing performance testing mechanism, including a workbench, a water tank fixedly connected to the top center of the workbench, a mounting frame fixedly connected to the top rear of the workbench, mounting plates fixedly connected to the bottom left and right sides of the mounting frame, and a lifting assembly provided between the opposite sides of the left and right mounting plates.

[0006] The mounting bracket has sliding rods slidably connected through the top four corners of the inner side. The bottom end of the sliding rods is fixedly connected to a fixing plate, and the top of the fixing plate is symmetrically provided with clamping components.

[0007] As a further description of the above technical solution:

[0008] The lifting assembly includes a dual-axis motor, a threaded rod, a limit rod, a slider, a connecting seat, a deflection plate, and a support seat. The dual-axis motor is fixedly connected to the top center of the inner side of the mounting frame. The threaded rod is fixedly connected to the end of the output shaft of the dual-axis motor. The front and rear parts of the mounting plates on the left and right sides are fixedly connected to the limit rod. The slider is threaded to the outer wall of the threaded rod. The bottom of the slider is fixedly connected to the connecting seat. The deflection plate is rotatably connected inside the connecting seat. The support seats are symmetrically fixedly connected to the top of the fixed plate.

[0009] As a further description of the above technical solution:

[0010] A drain pipe is fixedly connected to the bottom right side of the water tank, and a valve is installed on the outside of the drain pipe.

[0011] As a further description of the above technical solution:

[0012] The input end of the dual-axis motor is electrically connected to the output end of the external power supply. The slider is symmetrically slidably connected to the outer wall of the limiting rod. The other end of the deflection plate is rotatably connected to the inside of the support base.

[0013] As a further description of the above technical solution:

[0014] The clamping assembly includes a placement seat, a vertical rod, a pressure block, a placement groove, a circular plate, and a compression spring. The placement seat is fixedly connected to the top left and right sides of the fixed plate. The vertical rod is fixedly connected to the top four corners of the placement seat. The pressure block is slidably connected to the outer side of the vertical rod. Placement grooves are evenly provided on the opposite sides of the placement seat and the pressure block. The circular plate is fixedly connected to the top of the vertical rod. A compression spring is sleeved on the outer side of the vertical rod.

[0015] As a further description of the above technical solution:

[0016] The upper and lower ends of the compression spring are fixedly connected to the bottom of the circular plate and the top of the pressure block, respectively, and a handle is fixedly connected to the top center of the pressure block.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This hydraulic cylinder sealing testing mechanism, through the arrangement of a water tank, mounting plate, and lifting assembly, fixes the hydraulic cylinder using a clamping assembly. Gas is introduced into the hydraulic cylinder, and the dual-axis motor is started, driving the threaded rod to rotate. This causes the slider to move away from the connecting seat, causing the deflection plate to deflect vertically. The support seat then lowers the fixing plate, immersing the hydraulic cylinder in the water tank. By observing whether air bubbles are generated in the water tank, the sealing performance of the hydraulic cylinder is determined. This allows for the simultaneous testing of multiple hydraulic cylinders, improving testing efficiency and enhancing the practicality of the device.

[0019] 2. This hydraulic cylinder sealing test mechanism, through the setting of the fixing plate and clamping assembly, pulls the handle to drive the pressure block to move upward, so that the pressure block squeezes the compression spring. Then, the hydraulic cylinder is placed in the placement groove, the pressure block is loosened, and the compression spring resets, so that the pressure block presses the hydraulic cylinder tightly, thereby fixing the hydraulic cylinder. This makes fixing the hydraulic cylinder simpler and more convenient, improves fixing efficiency, saves time, and improves the overall testing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a hydraulic cylinder sealing performance testing mechanism proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the dual-axis motor mounting structure of a hydraulic cylinder sealing test mechanism proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the main structure of the lifting assembly of a hydraulic cylinder sealing detection mechanism proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the clamping assembly structure of a hydraulic cylinder sealing performance testing mechanism proposed in this utility model.

[0024] In the diagram: 100, workbench; 200, water tank; 210, drain pipe; 300, mounting bracket; 310, mounting plate; 320, dual-axis motor; 330, threaded rod; 340, limit rod; 350, slider; 360, connecting seat; 370, deflection plate; 380, support seat; 400, slide bar; 410, fixing plate; 420, placement seat; 430, vertical rod; 440, pressure block; 450, placement groove; 460, circular plate; 470, compression spring. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] This utility model provides a hydraulic cylinder sealing performance testing mechanism, which facilitates the simultaneous testing of multiple hydraulic cylinders, improving testing efficiency and the practicality of the device. Please refer to [link / reference]. Figure 1-4 The system includes a workbench 100, a water tank 200 fixedly connected to the top center of the workbench 100, a mounting bracket 300 fixedly connected to the top rear of the workbench 100, mounting plates 310 fixedly connected to the bottom left and right sides of the mounting bracket 300, and a lifting assembly between the opposite sides of the left and right mounting plates 310.

[0029] Please refer to it again. Figure 1 A sliding rod 400 is slidably connected through the top four corners of the inner side of the mounting bracket 300. A fixing plate 410 is fixedly connected to the bottom end of the sliding rod 400. Clamping components are symmetrically arranged on the top of the fixing plate 410.

[0030] Please refer to it again. Figure 2 The lifting assembly includes a dual-axis motor 320, a threaded rod 330, a limit rod 340, a slider 350, a connecting seat 360, a deflection plate 370, and a support seat 380.

[0031] Please refer to it again. Figure 2A dual-axis motor 320 is fixedly connected to the top center of the inner side of the mounting bracket 300. A threaded rod 330 is fixedly connected to the end of the output shaft of the dual-axis motor 320. A limit rod 340 is fixedly connected between the front and rear parts of the equal sides of the mounting plates 310 on the left and right sides.

[0032] Please refer to it again. Figure 2 The outer wall of the threaded rod 330 is threaded with a slider 350. The bottom of the slider 350 is fixedly connected to a connecting seat 360. The inside of the connecting seat 360 is rotatably connected to a deflection plate 370. The top of the fixed plate 410 is symmetrically fixedly connected to a support seat 380.

[0033] In summary, by setting up the water tank 200, mounting plate 310, and lifting assembly, and fixing the hydraulic cylinder with the clamping assembly, gas is introduced into the hydraulic cylinder, the dual-axis motor 320 is started, driving the threaded rod 330 to rotate, causing the slider 350 to move the connecting seat 360 away from each other, causing the deflection plate 370 to deflect in the vertical direction, and causing the support seat 380 to drive the fixing plate 410 to descend, thereby immersing the hydraulic cylinder in the water tank 200. By observing whether air bubbles are generated in the water tank 200, the sealing performance of the hydraulic cylinder can be judged, thus facilitating the simultaneous testing of multiple hydraulic cylinders, improving testing efficiency, and enhancing the practicality of the device.

[0034] Please refer to it again. Figure 1 A drain pipe 210 is fixedly connected to the bottom right side of the water tank 200, and a valve is provided on the outside of the drain pipe 210.

[0035] Please refer to it again. Figure 2 The input end of the dual-axis motor 320 is electrically connected to the output end of the external power supply. The slider 350 is symmetrically slidably connected to the outer wall of the limit rod 340. The other end of the deflection plate 370 is rotatably connected to the inside of the support base 380.

[0036] Please refer to it again. Figure 4 The clamping assembly includes a placement seat 420, a vertical rod 430, a pressure block 440, a placement groove 450, a circular plate 460, and a compression spring 470. The placement seat 420 is fixedly connected to the top left and right sides of the fixing plate 410. The vertical rod 430 is fixedly connected to the top four corners of the placement seat 420. The pressure block 440 is slidably connected to the outer side of the vertical rod 430. Placement grooves 450 are evenly provided on the opposite sides of the placement seat 420 and the pressure block 440. The circular plate 460 is fixedly connected to the top of the vertical rod 430. The compression spring 470 is sleeved on the outer side of the vertical rod 430.

[0037] Please refer to it again. Figure 4 The upper and lower ends of the compression spring 470 are fixedly connected to the bottom of the circular plate 460 and the top of the pressure block 440, respectively, and a handle is fixedly connected to the top center of the pressure block 440.

[0038] In summary, by setting up the fixing plate 410 and the clamping assembly, pulling the handle moves the pressure block 440 upward, causing the pressure block 440 to compress the compression spring 470. Then, the hydraulic cylinder is placed inside the placement slot 450. Loosening the pressure block 440 and resetting the compression spring 470 causes the pressure block 440 to press the hydraulic cylinder, thereby fixing the hydraulic cylinder. This makes fixing the hydraulic cylinder simpler and more convenient, improves fixing efficiency, saves time, and improves overall testing efficiency.

[0039] In practical use, when personnel in this technical field conduct testing, they pull the handle to move the pressure block 440 upward, causing the pressure block 440 to compress the compression spring 470. Then, the hydraulic cylinder is placed inside the placement groove 450, and the pressure block 440 is loosened. Through the reset of the compression spring 470, the pressure block 440 presses the hydraulic cylinder, thereby fixing the hydraulic cylinder. Then, the air source is connected to the inlet of the hydraulic cylinder through the connecting pipe to inflate the hydraulic cylinder. The dual-axis motor 320 is started, driving the threaded rod 330 to rotate, causing the slider 350 to move away from the connecting seat 360, causing the deflection plate 370 to deflect in the vertical direction, causing the support seat 380 to lower the fixing plate 410, thereby immersing the hydraulic cylinder in the water tank 200. By observing whether air bubbles are generated in the water tank 200, the sealing performance of the hydraulic cylinder is judged.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A hydraulic cylinder sealing performance testing mechanism, characterized in that: The device includes a workbench (100), a water tank (200) is fixedly connected to the top center of the workbench (100), a mounting frame (300) is fixedly connected to the top rear of the workbench (100), mounting plates (310) are fixedly connected to the bottom left and right sides of the mounting frame (300), and a lifting assembly is provided between the opposite sides of the left and right mounting plates (310). The mounting bracket (300) has sliding rods (400) slidably connected through the top four corners of the inner side of the mounting bracket (300). The bottom end of the sliding rod (400) is fixedly connected to a fixing plate (410), and the top of the fixing plate (410) is symmetrically provided with clamping components.

2. The hydraulic cylinder sealing performance testing mechanism according to claim 1, characterized in that: The lifting assembly includes a dual-axis motor (320), a threaded rod (330), a limit rod (340), a slider (350), a connecting seat (360), a deflection plate (370), and a support seat (380). The dual-axis motor (320) is fixedly connected to the top center of the inner side of the mounting bracket (300). The threaded rod (330) is fixedly connected to the end of the output shaft of the dual-axis motor (320). The limit rod (340) is fixedly connected to the front and rear parts between the equal sides of the mounting plate (310) on the left and right sides. The slider (350) is threaded to the outer wall of the threaded rod (330). The connecting seat (360) is fixedly connected to the bottom of the slider (350). The deflection plate (370) is rotatably connected to the inside of the connecting seat (360). The support seat (380) is symmetrically fixedly connected to the top of the fixing plate (410).

3. The hydraulic cylinder sealing performance testing mechanism according to claim 1, characterized in that: A drain pipe (210) is fixedly connected to the bottom right side of the water tank (200), and a valve is provided on the outside of the drain pipe (210).

4. The hydraulic cylinder sealing performance testing mechanism according to claim 2, characterized in that: The input end of the dual-axis motor (320) is electrically connected to the output end of the external power supply. The slider (350) is symmetrically slidably connected to the outer wall of the limiting rod (340). The other end of the deflection plate (370) is rotatably connected to the inside of the support base (380).

5. The hydraulic cylinder sealing performance testing mechanism according to claim 1, characterized in that: The clamping assembly includes a placement seat (420), a vertical rod (430), a pressure block (440), a placement groove (450), a circular plate (460), and a compression spring (470). The placement seat (420) is fixedly connected to the top left and right sides of the fixing plate (410). The vertical rod (430) is fixedly connected to the top four corners of the placement seat (420). The pressure block (440) is slidably connected to the outer side of the vertical rod (430). Placement grooves (450) are evenly provided on the opposite sides of the placement seat (420) and the pressure block (440). The circular plate (460) is fixedly connected to the top of the vertical rod (430). The compression spring (470) is sleeved on the outer side of the vertical rod (430).

6. The hydraulic cylinder sealing performance testing mechanism according to claim 5, characterized in that: The upper and lower ends of the compression spring (470) are fixedly connected to the bottom of the circular plate (460) and the top of the pressure block (440), respectively, and a handle is fixedly connected to the top center of the pressure block (440).

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