Testing device of high-pressure water pump

Abstract

The utility model discloses a testing device of a high-pressure water pump, and belongs to the field of water pump testing devices.The testing device comprises a base, the base is provided with a testing device body, the testing device body comprises a first hydraulic cylinder, the first hydraulic cylinder is fixedly connected to the front face of the base, and the bottom of the inner wall of the base is slidably connected with a first sliding block. A water pump shell is placed on the top of a supporting plate, a first hydraulic cylinder is started, the first hydraulic cylinder drives a first sliding block, a first moving block and first clamping rods to move towards the back face, the first clamping rods drive racks to move towards the back face, and the racks drive the two first clamping rods to move relatively to clamp the water pump shell; and a second hydraulic cylinder is started to drive a sealing plate to seal the top of the water pump shell, a water pump is started to suck a water source in the water tank through a connecting pipe, the water pump shell is filled through a drainage pipe, and whether water seepage exists around the water pump shell or not is observed.

Description

Technical Field

[0001] This application relates to the field of water pump testing devices, and more specifically, to a testing device for a high-pressure water pump. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It transfers the mechanical energy of a prime mover or other external energy to the liquid, increasing the liquid's energy. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals. The pump casing is made of cast metal and serves a sealing and protective function. After the pump casing is cast, a leakage test is performed. Currently, when testing the sealing performance of the pump casing, we first seal the bottom of the casing, pour water into the casing, and observe whether water seeps out from the outside of the casing to determine whether the casing is leaking.

[0003] Patent document CN221055992U discloses a water pump metal casting leakage test device, including a test platform, a support platform is set at the center of the upper surface of the test platform, and side support plates are fixed at both ends of the upper surface of the test platform. An air pump is fixed on the upper surface of the crossbeam, and a cylinder is fixed at the center of the bottom of the crossbeam. A hanging plate is fixed on the extended end of the cylinder. A sealing cover is set below the hanging plate. A first air guide pipe and a second air guide pipe are inserted into the sealing cover, and a digital pressure gauge is connected to the opening at the top of the first air guide pipe. This water pump metal casting leakage test device has two air guide pipes inserted into a sealing cover plate. A digital pressure gauge is connected to the first air guide pipe to detect changes in air pressure. The second air guide pipe is connected to an air pump, which sends high-pressure air into the pump casing. The digital pressure gauge measures the changes in air pressure inside the pump casing, thus providing a direct test of the pump casing's sealing performance. It does not require a water source, and the test results are intuitive, thereby improving its practicality. However, the aforementioned application does not fix the water pump, which makes it easy for gaps to appear when the sealing cover plate descends to seal the pump casing, leading to inaccurate measurement results. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a testing device for a high-pressure water pump, solving the problems mentioned in the background section. To achieve the above objectives, this utility model is implemented through the following technical solution: A testing device for a high-pressure water pump includes a base, on which a testing device is mounted. The testing device includes a first hydraulic cylinder, which is fixedly connected to the front of the base. A first slider is slidably connected to the bottom of the inner wall of the base. A first moving block is fixedly connected to the top of the first slider. A first clamping rod is fixedly connected to the top of the first moving block. A rotating rod is rotatably connected to the bottom of the inner wall of the base via a bearing. A circular gear is fixedly connected to the outer wall of the rotating rod. A rack is fixedly connected to the back of the first slider. The output end of the first hydraulic cylinder is fixedly connected to the front of the first slider.

[0005] Preferably, a support rod is fixedly connected to the top of the base, a support plate is fixedly connected to the outer wall of the support rod, a top plate is fixedly connected to the top of the support rod, a second hydraulic cylinder is fixedly connected to the top of the top plate, the output end of the second hydraulic cylinder extends movably through the top plate to the bottom, a sealing plate is fixedly connected to the bottom of the output end of the second hydraulic cylinder, and the sealing plate is slidably connected to the outer wall of the support rod.

[0006] Preferably, a water tank is fixedly connected to the top of the top plate, a water pump is fixedly connected to the top of the top plate, a connecting pipe is fixedly connected to the top of the water pump, the connecting pipe is fixedly connected through the water tank and connected to the water tank, and a drain pipe is fixedly connected to the bottom of the water pump.

[0007] Preferably, the sprocket and the rack mesh with each other.

[0008] Preferably, the base is provided with a clamping device, the clamping device including a rotating block, the rotating block being fixedly connected to the top of the rotating rod, and a movable rod being hinged to the top of the rotating block.

[0009] Preferably, a second slider is hinged to the left side of the movable rod, a second moving block is fixedly connected to the top of the second slider, and a second clamping rod is fixedly connected to the top of the second moving block.

[0010] The advantages of this application are:

[0011] I. This application solves the problem in the background art where gaps easily appear when the sealing cover descends to seal the water pump housing, leading to inaccurate measurement results. The method involves setting up a testing device, placing the water pump housing on top of a support plate, activating the first hydraulic cylinder (which drives the first slider, first moving block, and first clamping rod to move backward), the first clamping rod driving the rack to move backward, and the rack driving the two first clamping rods to move relative to each other to clamp the water pump housing. The second hydraulic cylinder is then activated to seal the top of the water pump housing with a sealing plate. The water pump is then started, drawing water from the water tank through a connecting pipe and filling the inside of the water pump housing through a drain pipe. The method observes whether there is water leakage around the water pump housing.

[0012] Second, this application incorporates a clamping device. The rotating rod rotates, causing the rotating block to rotate counter-clockwise. The rotating block then moves the movable rod to the right, which in turn moves the second slider. The second movable block and the second clamping rod clamp the water pump casing from all sides, improving the stability of the water pump casing during testing. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

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

[0015] Figure 2 This is a schematic diagram of the structure on the right side of this utility model;

[0016] Figure 3 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0018] In the above image,

[0019] 1. Base; 2. Testing device; 21. First hydraulic cylinder; 22. First slider; 23. Rack; 24. Rotating rod; 25. Circular gear; 26. First moving block; 27. First clamping rod; 28. Support rod; 29. ​​Support plate; 210. Top plate; 211. Sealing plate; 212. Second hydraulic cylinder; 213. Water tank; 214. Water pump; 215. Connecting pipe; 3. Clamping device; 31. Rotating block; 32. Movable rod; 33. Second moving block; 34. Second clamping rod. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1

[0023] See Figures 1-4This embodiment provides a testing device for a high-pressure water pump, including a base 1, on which a testing device 2 is mounted. The testing device 2 includes a first hydraulic cylinder 21, which is fixedly connected to the front of the base 1. A first slider 22 is slidably connected to the bottom of the inner wall of the base 1. A first moving block 26 is fixedly connected to the top of the first slider 22. A first clamping rod 27 is fixedly connected to the top of the first moving block 26. A rotating rod 24 is rotatably connected to the bottom of the inner wall of the base 1 via a bearing. A circular gear 25 is fixedly connected to the outer wall of the rotating rod 24. A rack 23 is fixedly connected to the back of the first slider 22. The output end of the first hydraulic cylinder 21 is fixedly connected to the front of the first slider 22. Power is mainly provided by the first hydraulic cylinder 21 to achieve linear movement of the first slider 22. The design of the first slider 22 sliding on the bottom of the inner wall of the base 1 ensures the stability and accuracy of the device during operation. The combination of the first moving block 26 and the first clamping rod 27 enables the testing device 2 to effectively clamp the water pump casing for testing, ensuring that the water pump casing will not shift during the testing process. The engagement of the rotating rod 24 and the spur gear 25 utilizes the rack 23 to achieve smooth rotational power transmission, thereby improving testing efficiency and accuracy. A support rod 28 is fixedly connected to the top of the base 1. A support plate 29 is fixedly connected to the outer wall of the support rod 28. A top plate 210 is fixedly connected to the top of the support rod 28. A second hydraulic cylinder 212 is fixedly connected to the top of the top plate 210. The output end of the second hydraulic cylinder 212 extends movably through the top plate 210 to the bottom. A sealing plate 211 is fixedly connected to the bottom of the output end of the second hydraulic cylinder 212, and the sealing plate 211 is slidably connected to the outer wall of the support rod 28. A water tank 213 is fixedly connected to the top of the top plate 210. A water pump 214 is fixedly connected to the top of the top plate 210. A connecting pipe 215 is fixedly connected to the top of the water pump 214, passing through and communicating with the water tank 213. A drain pipe is fixedly connected to the bottom of the water pump 214. The spur gear 25 and the rack 23 mesh with each other.

[0024] In practical use, the above-mentioned equipment is used by placing the water pump housing on top of the support plate 29, starting the first hydraulic cylinder 21, which drives the first slider 22, the first moving block 26, and the first clamping rod 27 to move to the back, the first clamping rod 27 drives the rack 23 to move to the back, the rack 23 drives the sprocket 25 to rotate, the sprocket 25 drives the left rack 23 to move to the front, and the left rack 23 drives the first slider 22, the first moving block 26, and the first clamping rod 27 to move to the front. The water pump housing is clamped by the relative movement of the two first clamping rods 27. The second hydraulic cylinder 212 is started to drive the sealing plate 211 to seal the top of the water pump housing, and the water pump 214 is started. The water pump 214 draws water from the water tank 213 through the connecting pipe 215 and fills the inside of the water pump housing through the drain pipe. It is observed whether there is water leakage around the water pump housing.

[0025] Example 2

[0026] See Figures 1-4 Based on Embodiment 1, a clamping device 3 is provided on the base 1. The clamping device 3 includes a rotating block 31, which is fixedly connected to the top of the rotating rod 24. A movable rod 32 is hinged to the top of the rotating block 31. The meshing design between the spur gear 25 and the rack 23 ensures the high efficiency of power transmission. When the first hydraulic cylinder 21 pushes the first slider 22 to move, the rack 23 also moves accordingly, thereby driving the rotating rod 24 to rotate, and thus pushing the clamping device to achieve precise positioning and testing of the water pump. This mechanical linkage structure design not only improves the efficiency of power transmission but also increases the stability of the overall structure. A second slider is hinged to the left side of the movable rod 32. A second moving block 33 is fixedly connected to the top of the second slider, and a second clamping rod 34 is fixedly connected to the top of the second moving block 33.

[0027] In practical use, the rotating rod 24 rotates, causing the rotating block 31 to rotate counterclockwise. The rotating block 31 then moves the movable rod 32 to the right, which in turn moves the second slider. The second movable block 33 and the second clamping rod 34 clamp the water pump casing from all sides, improving the stability of the water pump casing during testing.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A testing device for a high-pressure water pump, comprising a base (1), characterized in that, A testing device (2) is provided on the base (1). The testing device (2) includes a first hydraulic cylinder (21), which is fixedly connected to the front of the base (1). A first slider (22) is slidably connected to the bottom of the inner wall of the base (1). A first moving block (26) is fixedly connected to the top of the first slider (22). A first clamping rod (27) is fixedly connected to the top of the first moving block (26). A rotating rod (24) is rotatably connected to the bottom of the inner wall of the base (1) through a bearing. A spur gear (25) is fixedly connected to the outer wall of the rotating rod (24). A rack (23) is fixedly connected to the back of the first slider (22). The output end of the first hydraulic cylinder (21) is fixedly connected to the front of the first slider (22).

2. The testing device for a high-pressure water pump according to claim 1, characterized in that, A support rod (28) is fixedly connected to the top of the base (1). A support plate (29) is fixedly connected to the outer wall of the support rod (28). A top plate (210) is fixedly connected to the top of the support rod (28). A second hydraulic cylinder (212) is fixedly connected to the top of the top plate (210). The output end of the second hydraulic cylinder (212) extends movably through the top plate (210) to the bottom. A sealing plate (211) is fixedly connected to the bottom of the output end of the second hydraulic cylinder (212). The sealing plate (211) is slidably connected to the outer wall of the support rod (28).

3. The testing device for a high-pressure water pump according to claim 2, characterized in that, A water tank (213) is fixedly connected to the top of the top plate (210), a water pump (214) is fixedly connected to the top of the top plate (210), a connecting pipe (215) is fixedly connected to the top of the water pump (214), the connecting pipe (215) is fixedly connected through the water tank (213) and connected to the water tank (213), and a drain pipe is fixedly connected to the bottom of the water pump (214).

4. The testing device for a high-pressure water pump according to claim 3, characterized in that, The spur gear (25) meshes with the rack (23).

5. The testing device for a high-pressure water pump according to claim 4, characterized in that, The base (1) is provided with a clamping device (3), which includes a rotating block (31). The rotating block (31) is fixedly connected to the top of the rotating rod (24), and a movable rod (32) is hinged to the top of the rotating block (31).

6. The testing device for a high-pressure water pump according to claim 5, characterized in that, The movable rod (32) is hinged to the left side with a second slider, and the top of the second slider is fixedly connected to a second moving block (33), and the top of the second moving block (33) is fixedly connected to a second clamping rod (34).

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