Automobile water pump impeller sealing detection equipment

Abstract

The invention relates to the technical field of water pump sealing detection, and discloses an automobile water pump impeller sealing detection device, which comprises a detection table, the top of the detection table is fixedly connected with a placement frame, the inner wall of the detection table is fixedly connected with a gas collection frame, and the inner wall of the placement frame is fixedly connected with a communication block. The inner wall of the gas collecting frame is fixedly connected with a gas inlet pipe, a blocking rod enters a gas outlet of the pump body through a blocking assembly to block the gas outlet, then an electric telescopic rod is started to stretch out, a piston plate is pushed to ascend, an extrusion assembly is pushed to extrude gas, high-pressure gas enters the pump body, the pump body vibrates through a pushing assembly, and the gas outlet is blocked. And then the gas pressure measured by the gas pressure sensor is observed, whether the pump body leaks or not is judged, after high-pressure gas is injected into the pump body, the pump body vibrates, vibration generated when the pump body runs on an automobile is simulated, the actual use scene is better fitted, and leakage points which are difficult to find in a static state are shown.

Description

Technical Field

[0001] The invention relates to the technical field of water pump seal detection equipment, in particular to automobile water pump impeller seal detection equipment. Background Art

[0002] As the country's requirements for environmental protection become increasingly stringent, electric vehicles are developing at a rapid pace. Automotive electronic water pumps are essential components of electric vehicles. They are used to achieve water circulation, coolant circulation or on-board water supply system circulation. The sealing test of the automotive water pump impeller is a key link to ensure its performance and reliability. It verifies the sealing between the impeller and the pump body, shaft seal and other components to prevent coolant leakage.

[0003] Among them, when testing the sealing of the water pump, the pump body is often sealed, and then high-pressure gas is injected into the pump body. The sealing of the water pump is tested based on whether the high-pressure gas leaks. However, the water pump is usually in a stationary state during the testing process. However, when the water pump is installed in a car for use, the vibration generated by the car will be transmitted to the water pump. Products that pass the test in a stationary state may be affected by the vibration of the car and leak, affecting the accuracy of the test. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an automobile water pump impeller seal detection device, comprising a detection platform, the top of which is fixedly connected to a placement rack;

[0005] The main body has a frame assembly fixedly mounted on the top of the main body, a drive assembly is mounted on the top of the main body, and the frame assembly is used to place the water pump to be tested;

[0006] a vibration mechanism, which is mounted on the inner wall of the main body and is used to generate vibration during the water pump detection process; and

[0007] Sealing mechanism: The sealing mechanism is located on the inner wall of the main body and is used to ensure the sealing performance when the water pump vibrates;

[0008] The inner wall of the testing table is fixedly connected with a gas collecting frame, the inner wall of the placement rack is fixedly connected with a connecting block, the inner wall of the gas collecting frame is fixedly connected with an air inlet pipe, and the inner wall of the gas collecting frame is slidably connected with a piston plate;

[0009] Among them, the water pump to be tested is placed on a placement rack, and high-pressure gas is injected into the water pump through a vibration mechanism. At the same time, the water pump is vibrated to simulate the vibration generated by the water pump running on a car, which is more in line with the actual usage scenario and makes leakage points that are difficult to find under static conditions appear, thereby ensuring the accuracy of the detection. The sealing mechanism is then used to ensure the sealing of the air inlet and outlet when the water pump vibrates, preventing the water pump from vibrating and leaking gas from the air inlet and outlet, which affects the accuracy of the detection.

[0010] Preferably, the main body includes:

[0011] A frame assembly, the bottom of which is fixed to the top of the test bench and is used to place a water pump;

[0012] A driving assembly, the bottom of which is fixed to the top of the placement frame and is used to squeeze the water pump;

[0013] The water pump to be tested is placed on a placement rack, and the water pump is squeezed by the driving component to keep it stable during testing.

[0014] Preferably, the vibration mechanism comprises:

[0015] An extrusion assembly is fixedly arranged on the inner wall of the gas collecting frame through a fixing piece and is used for extruding gas;

[0016] The fixing part includes an electric telescopic rod fixedly connected to the inner wall of the gas collecting frame, and a plurality of air inlet holes are opened on the inner wall of the gas collecting frame and the testing table;

[0017] A blocking component is fixedly arranged on the inner wall of the gas collecting frame through a support member and is used to block the gas;

[0018] The support member comprises a fixing frame fixedly connected to the inner wall of the gas collecting frame, and a seesaw is rotatably connected to the outer wall of the fixing frame.

[0019] Preferably, the vibration mechanism further comprises:

[0020] A blocking component is fixed on the top of the placement rack through a limiting member and is used to block the water pump;

[0021] The limiting member includes a fixing plate fixedly connected to the top of the placement rack, and a blocking rod is slidably connected to the inner wall of the fixing plate;

[0022] A pushing component is fixedly arranged on the top of the piston plate through a connecting piece and is used to drive the water pump to vibrate;

[0023] The connecting piece includes two gear rods fixedly connected to the top of the piston plate, and two gear rods rotatably connected to the inner wall of the gas collecting frame;

[0024] Among them, the electric telescopic rod is started to extend, pushing the piston plate to rise, pushing the extrusion component to squeeze the gas, and then the blocking component is used to remove the blockage of the gas, allowing high-pressure gas to enter the pump body, and through the blocking component, the blocking rod is made to enter the air outlet of the pump body to block the air outlet. Finally, the water pump is vibrated by pushing the component to simulate the vibration generated by the water pump running on a car, which is more in line with the actual usage scenario and makes leakage points that are difficult to find under static conditions appear.

[0025] Preferably, the sealing mechanism comprises:

[0026] A synchronization component is slidably arranged on the top of the frame component and is used to move synchronously with the water pump when the water pump vibrates;

[0027] A clamping assembly is slidably arranged on the inner wall of the clamping assembly and is used to clamp the outer wall of the water pump;

[0028] Among them, the friction between the synchronization component and the water pump is increased by the clamping component, so that when the water pump vibrates, the synchronization component moves synchronously with the water pump, blocking the air inlet and outlet of the water pump, effectively preventing the water pump from vibrating, and separating the synchronization component from the water pump, resulting in a decrease in sealing, which may cause gas to leak from the air inlet and affect the accuracy of detection.

[0029] Preferably, the frame assembly includes a pump body slidably connected to the inner wall of the placement rack;

[0030] A cylinder is fixedly connected to the side of the placement frame away from the pump body, an extrusion block is fixedly connected to the bottom output end of the cylinder, and a spring extrusion ring is slidably connected to the inner wall of the extrusion block;

[0031] The operator places the pump body to be tested in the placement rack, then starts the cylinder to extend, causing the extrusion block and the spring extrusion ring to descend until the spring extrusion ring contacts the top of the pump body, thereby squeezing the pump body.

[0032] Preferably, the extrusion assembly includes a convex plate fixedly connected to the top of the gas collecting frame, and the top output ends of the two electric telescopic rods are fixedly connected to the bottom of the piston plate;

[0033] The blocking assembly includes a spring ball rod slidably connected to the inner wall of the intake pipe, and an air pressure sensor is fixedly connected to the inner wall of the connecting block;

[0034] Among them, the electric telescopic rod is started to extend, pushing the piston plate up. When the piston plate covers the air inlet hole, it will squeeze the gas in the air collecting frame. At this time, the squeezed gas will be blocked by the spring ball rod, so the gas pressure will increase. As the piston plate continues to move, the piston plate will drive the convex plate to contact the seesaw, pushing the seesaw to rotate, so that the side of the seesaw in contact with the convex plate rises and the other side lowers. The lowered side will push the spring ball rod down, so that the spring ball rod is separated from the inclined surface of the intake pipe, leaking a gap, and high-pressure gas will enter the connecting block through the gap, and then enter the pump body through the connecting block, injecting high-pressure gas into the pump body. As the convex plate continues to move, the convex plate will separate from the seesaw. At this time, the rebound force of the spring ball rod will be released, causing it to return to its position, blocking the gas from entering the pump body again, and measuring the gas pressure of the pump body by the air pressure sensor.

[0035] Preferably, the blocking assembly includes a connecting block fixedly connected to the outer wall of the extrusion block, the bottom of the connecting block is rotatably connected to a connecting rod, and the side wall of the blocking rod is rotatably connected to the inner wall of the connecting rod;

[0036] A spring ring is slidably connected to the inner wall of the blocking rod, and a rubber ring 1 is fixedly connected to the side wall of the spring ring;

[0037] Among them, when the extrusion block descends, it will drive the connecting block and the connecting rod to descend, causing the blocking rod to descend until the blocking rod is blocked by the fixed plate. The connecting block continues to descend, which will push the blocking rod to move laterally, allowing the blocking rod to move toward the pump body, so that the blocking rod enters the air outlet of the pump body, so that the rubber ring 1 fits against the side wall of the pump body, squeezes the spring ring, allows the spring ring to accumulate rebound force, squeezes the rubber ring 1, causes it to deform, and blocks the air outlet.

[0038] Preferably, the pushing assembly includes a cam fixedly connected to the outer wall of the gear rod, and the outer walls of the two gear rods are meshed with the side walls of the two gear rods;

[0039] The inner wall of the gas collecting frame is slidably connected to two push rods, and the outer walls of the two push rods are slidably connected to the inner wall of the placement rack;

[0040] Among them, as the piston plate continues to move, it will drive the gear rod to engage with the gear rod, causing the gear rod to rotate and the cam to rotate. When the convex position of the cam contacts the push rod, it will push the push rod up, causing the push rod to push the pump body up, allowing the pump body to squeeze the spring extrusion ring. When the convex position of the push rod is separated from the push rod, the rebound force of the extrusion block will be released, causing the pump body to return to its position until the convex position of the cam pushes the push rod up again. This reciprocating process causes the pump body to vibrate until the gear rod is separated from the gear rod, causing the pump body to stop vibrating. After that, the gas pressure measured by the air pressure sensor is observed. Compared with the gas pressure measured before, a larger reduction indicates that there is a leakage and it is unqualified. Otherwise, it is qualified. By injecting high-pressure gas into the pump body, the pump body is vibrated, simulating the vibration generated by the pump body running on a car, which is more in line with the actual usage scenario, making leaks that are difficult to find under static conditions appear, thereby ensuring the accuracy of the detection.

[0041] Preferably, the synchronization component includes a limit ring slidably connected to the outer wall of the connecting block, a second rubber ring is fixedly connected to the inner wall of the limit ring, two blocking rods are fixedly connected to the top of the placement rack, and the inner wall of the limit ring is slidably connected to the outer walls of the two top rods;

[0042] The clamping assembly includes two arc-shaped blocks slidably connected to the inner wall of the limiting ring, and two rubber rings 2 are slidably connected to the inner wall of the limiting ring, and the side walls of the two rubber rings 2 are fixedly connected to the side walls of the arc-shaped blocks;

[0043] Among them, when the pump body is placed, the pump body will squeeze the arc block, causing the arc block to squeeze the spring return rod, allowing the spring return rod to accumulate rebound force, and through the rebound force of the spring return rod, the arc block will clamp the outer wall of the pump body. When the spring extrusion ring squeezes the pump body, the pump body will squeeze the rubber ring 2, causing the rubber ring 2 to deform, blocking the air inlet of the pump body. When the pump body is clamped by the arc block, the limit ring and the rubber ring 2 will vibrate synchronously when the pump body vibrates, so that the rubber ring 2 is always in a close fit with the pump body, effectively preventing the pump body from vibrating, causing the rubber ring 2 to separate from the pump body, resulting in a decrease in sealing, which may cause gas to leak from the air inlet and affect the accuracy of the detection.

[0044] The present invention has the following beneficial effects:

[0045] (1) When the present invention is used, the operator places the pump body to be tested in the placement rack, and then starts the cylinder to extend, so that the spring extrusion ring squeezes the pump body. At the same time, when the extrusion block descends, the blocking rod is made to enter the air outlet of the pump body through the blocking component to block the air outlet. After that, the electric telescopic rod is started to extend, pushing the piston plate to rise, pushing the extrusion component to squeeze the gas, and then removing the obstruction of the gas through the blocking component to allow high-pressure gas to enter the pump body. Then, the piston plate continues to move, and the pump body is vibrated by the pushing component. After that, the gas pressure measured by the air pressure sensor is observed to determine whether there is a leak in the pump body. After injecting high-pressure gas into the pump body, the pump body is vibrated to simulate the vibration generated by the pump body driving on a car, which is more in line with the actual use scenario and makes the leakage points that are difficult to find under static conditions appear, thereby ensuring the accuracy of the detection.

[0046] (2) The present invention injects high-pressure gas into the pump body after the piston plate rises and gradually pressurizes the gas. After that, the air inlet pipe is blocked again to stop the injection of gas. The piston plate continues to rise, which will increase the gas pressure in the gas collecting frame again, so that the gas pressure in the gas collecting frame is greater than the gas pressure in the pump body. When the pump body vibrates subsequently, the gas in the gas collecting frame is blocked by the spring ball rod and cannot enter the pump body, which effectively prevents the pump body from leaking gas during the vibration process. The gas pressure in the pump body is weakened, and the gas in the gas collecting frame enters the pump body again. The entry of external gas interferes with the actual leakage of the pump body.

[0047] (3) When the pump body is placed, the pump body will squeeze the arc block, allowing the arc block to clamp the pump body. When the spring squeeze ring squeezes the pump body, the pump body will squeeze the rubber ring 2 to block the air inlet of the pump body. When the pump body is clamped by the arc block, the limit ring and the rubber ring 2 will vibrate synchronously when the pump body vibrates, so that the rubber ring 2 is always in a close fit with the pump body, effectively preventing the pump body from vibrating and separating the rubber ring 2 from the pump body, resulting in a decrease in sealing performance, which may cause gas to leak from the air inlet and affect the accuracy of detection.

[0048] (4) When the present invention needs to detect the static sealing of the pump body, it only needs to raise the piston plate, drive the convex plate to push the seesaw to rotate, and let the spring ball rod fall, so that the gas enters the pump body. When the convex plate is separated from the seesaw, the electric telescopic rod is stopped, so that the high-pressure gas in the pump body is kept under pressure for a period of time. The gas pressure change in the pump body is measured by the air pressure sensor to detect the gas pressure change in the static state of the pump body. After that, the electric telescopic rod is extended again to make the pump body vibrate, so that the dynamic and static sealing of the pump body can be tested at the same time, and two tests can be completed in one clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0052] Figure 3 It is a schematic cross-sectional view of the testing platform of the present invention from the right side;

[0053] Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram;

[0054] Figure 5 For the present invention Figure 3 A magnified schematic diagram of B in the middle;

[0055] Figure 6 For the present invention Figure 3 A magnified schematic diagram of middle C;

[0056] Figure 7 It is a schematic cross-sectional view of the placement rack of the present invention from the right side;

[0057] Figure 8 For the present invention Figure 7 A magnified schematic diagram of D in the middle;

[0058] Figure 9 This is a schematic cross-sectional view of the gas collecting frame of the present invention;

[0059] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of E;

[0060] Figure 11 It is a cross-sectional schematic diagram of the limiting ring of the present invention;

[0061] Figure 12 For the present invention Figure 11 A magnified schematic diagram of F in the middle.

[0062] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0063] In the figure: 1. Main body; 11. Frame assembly; 12. Driving assembly; 111. Testing table; 112. Placement rack; 113. Pump body; 121. Cylinder; 122. Extrusion block; 123. Spring extrusion ring; 2. Vibration mechanism; 21. Extrusion assembly; 22. Blocking assembly; 23. Blocking assembly; 24. Pushing assembly; 211. Gas collecting frame; 212. Piston plate; 213. Electric telescopic rod; 214. Air inlet; 215. Convex plate; 221. Fixing frame; 222. Rocker; 223. Inlet Trachea; 224, spring ball rod; 225, air pressure sensor; 226, connecting block; 231, connecting block; 232, connecting rod; 233, fixing plate; 234, blocking rod; 235, rubber ring 1; 236, spring ring; 241, gear rod; 242, gear rod; 243, cam; 244, push rod; 3, sealing mechanism; 31, synchronization assembly; 32, clamping assembly; 311, limit ring; 312, rubber ring 2; 313, blocking rod; 321, arc block; 322, spring return rod. DETAILED DESCRIPTION

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0065] For example 1, please refer to Figures 1-9 , the present invention is an automobile water pump impeller seal detection device, comprising a detection platform 111, the top of the detection platform 111 is fixedly connected to a placement rack 112;

[0066] The main body 1 has a frame assembly 11 fixedly mounted on the top of the main body 1. A drive assembly 12 is mounted on the top of the main body 1. The frame assembly 11 is used to place the water pump to be tested.

[0067] A vibration mechanism 2, which is mounted on the inner wall of the main body 1 and is used to generate vibration during the water pump detection process; and

[0068] Sealing mechanism 3, which is located on the inner wall of the main mechanism 1 and is used to ensure sealing when the water pump vibrates;

[0069] The inner wall of the testing platform 111 is fixedly connected to the gas collecting frame 211, the inner wall of the placement rack 112 is fixedly connected to the connecting block 226, the inner wall of the gas collecting frame 211 is fixedly connected to the air inlet pipe 223, and the inner wall of the gas collecting frame 211 is slidably connected to the piston plate 212;

[0070] Among them, the water pump to be tested is placed on the placement rack 112, and high-pressure gas is injected into the water pump through the vibration mechanism 2. At the same time, the water pump is vibrated to simulate the vibration generated by the water pump running on the car, which is more in line with the actual usage scenario and makes the leakage points that are difficult to find under static conditions appear, thereby ensuring the accuracy of the detection. Then, the sealing mechanism 3 is used to ensure the sealing of the air inlet and the air outlet when the water pump vibrates, to prevent the water pump from vibrating and leaking gas from the air inlet and the air outlet, which affects the accuracy of the detection.

[0071] The main body 1 includes:

[0072] The frame assembly 11 has a bottom portion fixedly mounted on the top of the inspection platform 111 and is used to place a water pump.

[0073] The driving assembly 12 has a bottom portion fixedly mounted on the top portion of the mounting frame 112 and is used to squeeze the water pump;

[0074] The water pump to be tested is placed on the placement rack 112, and the water pump is squeezed by the driving component 12 to keep it stable during testing.

[0075] The vibration mechanism 2 includes:

[0076] An extrusion assembly 21 is fixed to the inner wall of the gas collecting frame 211 through a fixing member and is used to extrude gas;

[0077] The fixing member includes an electric telescopic rod 213 fixedly connected to the inner wall of the gas collecting frame 211. The inner walls of the gas collecting frame 211 and the testing platform 111 are both provided with a plurality of air inlet holes 214.

[0078] The blocking component 22 is fixedly disposed on the inner wall of the gas collecting frame 211 through a support member and is used to block the gas;

[0079] The support member includes a fixing frame 221 fixedly connected to the inner wall of the gas collecting frame 211 , and a rocker plate 222 is rotatably connected to the outer wall of the fixing frame 221 .

[0080] The vibration mechanism 2 further comprises:

[0081] The blocking component 23 is fixedly arranged on the top of the placement rack 112 through a limiting member and is used to block the water pump;

[0082] The limiting member includes a fixing plate 233 fixedly connected to the top of the placement rack 112, and a blocking rod 234 is slidably connected to the inner wall of the fixing plate 233;

[0083] The pushing component 24 is fixedly arranged on the top of the piston plate 212 through a connecting piece and is used to drive the water pump to vibrate;

[0084] The connecting member includes two gear rods 241 fixedly connected to the top of the piston plate 212, and two gear rods 242 are rotatably connected to the inner wall of the gas collecting frame 211;

[0085] The electric telescopic rod 213 is extended to push the piston plate 212 upward, pushing the extrusion component 21 to squeeze the gas, and then the blocking component 22 removes the gas blocking, allowing the high-pressure gas to enter the pump body 113, and the blocking component 23 is used to allow the blocking rod 234 to enter the gas outlet of the pump body 113. Figure 8 As shown in the state of H in the middle, the air outlet is blocked, and finally the water pump is vibrated by pushing the component 24 to simulate the vibration generated by the water pump running on the car, which is more in line with the actual usage scenario and makes the leakage points that are difficult to find in static state appear.

[0086] The sealing mechanism 3 includes:

[0087] A synchronization component 31 is slidably disposed on the top of the frame component 11 and is used to move synchronously with the water pump when the water pump vibrates;

[0088] A clamping assembly 32 is slidably disposed on an inner wall of the clamping assembly 32 and is used to clamp an outer wall of the water pump;

[0089] Among them, the friction between the synchronization component 31 and the water pump is increased by the clamping component 32, so that when the water pump vibrates, the synchronization component 31 moves synchronously with the water pump, blocking the air inlet and outlet of the water pump, effectively preventing the water pump from vibrating, and separating the synchronization component 31 from the water pump, resulting in a decrease in sealing, which may cause gas to leak from the air inlet and affect the accuracy of detection.

[0090] For example 2, please refer to Figures 1-12 The present invention is an automobile water pump impeller seal detection device. Based on Example 1, the frame assembly 11 includes a pump body 113 slidably connected to the inner wall of the placement frame 112;

[0091] A cylinder 121 is fixedly connected to the side of the placement rack 112 away from the pump body 113, and an extrusion block 122 is fixedly connected to the bottom output end of the cylinder 121. A spring extrusion ring 123 is slidably connected to the inner wall of the extrusion block 122;

[0092] The operator places the pump body 113 to be tested in the placement rack 112, and then starts the cylinder 121 to extend it, so that the extrusion block 122 and the spring extrusion ring 123 descend until the spring extrusion ring 123 contacts the top of the pump body 113, thereby squeezing the pump body 113.

[0093] The extrusion assembly 21 includes a convex plate 215 fixedly connected to the top of the gas collecting frame 211, and the top output ends of the two electric telescopic rods 213 are fixedly connected to the bottom of the piston plate 212;

[0094] The blocking assembly 22 includes a spring ball rod 224 slidably connected to the inner wall of the air inlet pipe 223, and an air pressure sensor 225 is fixedly connected to the inner wall of the connecting block 226;

[0095] Among them, the electric telescopic rod 213 is started to extend, pushing the piston plate 212 to rise. When the piston plate 212 covers the air inlet hole 214, it will squeeze the gas in the gas collecting frame 211. At this time, the squeezed gas will be blocked by the spring ball rod 224, so the gas pressure will increase. As the piston plate 212 continues to move, the piston plate 212 will drive the convex plate 215 to contact the rocker 222, pushing the rocker 222 to rotate, so that the side of the rocker 222 in contact with the convex plate 215 rises and the other side falls. The falling side pushes the spring ball rod 224 to move. The ball rod 224 descends, separating the spring ball rod 224 from the inclined surface of the air inlet pipe 223, leaking a gap. The high-pressure gas will enter the connecting block 226 through the gap, and then enter the pump body 113 through the connecting block 226, injecting high-pressure gas into the pump body 113. As the convex plate 215 continues to move, the convex plate 215 will separate from the rocker plate 222. At this time, the rebound force of the spring ball rod 224 will be released, causing it to return to its position, blocking the gas from entering the pump body 113 again, and measuring the gas pressure of the pump body 113 through the air pressure sensor 225.

[0096] The blocking assembly 23 includes a connecting block 231 fixedly connected to the outer wall of the extrusion block 122, a connecting rod 232 is rotatably connected to the bottom of the connecting block 231, and a side wall of the blocking rod 234 is rotatably connected to the inner wall of the connecting rod 232;

[0097] A spring ring 236 is slidably connected to the inner wall of the blocking rod 234, and a rubber ring 235 is fixedly connected to the side wall of the spring ring 236;

[0098] Among them, when the extrusion block 122 descends, it will drive the connecting block 231 and the connecting rod 232 to descend, causing the blocking rod 234 to descend until the blocking rod 234 is blocked by the fixing plate 233. The connecting block 231 continues to descend, which will push the blocking rod 234 to move laterally, allowing the blocking rod 234 to move toward the pump body 113, so that the blocking rod 234 enters the air outlet of the pump body 113, as shown in FIG. Figure 8As shown in the state H in the middle, the rubber ring 235 is fitted against the side wall of the pump body 113, squeezing the spring ring 236, allowing the spring ring 236 to accumulate rebound force, squeezing the rubber ring 235, causing it to deform and block the air outlet.

[0099] The pushing assembly 24 includes a cam 243 fixedly connected to the outer wall of the gear rod 242. The outer walls of the two gear rods 242 are meshed with the side walls of the two gear rods 241.

[0100] The inner wall of the gas collecting frame 211 is slidably connected to two push rods 244, and the outer walls of the two push rods 244 are slidably connected to the inner wall of the placement rack 112;

[0101] When the piston plate 212 continues to move, it will drive the gear rod 241 to mesh with the gear rod 242, causing the gear rod 242 to rotate and the cam 243 to rotate. When the protruding position of the cam 243 contacts the push rod 244, it will push the push rod 244 to rise, causing the push rod 244 to push the pump body 113 to rise, causing the pump body 113 to squeeze the spring squeeze ring 123. When the protruding position of the push rod 244 is separated from the push rod 244, the rebound force of the squeeze block 122 will be released, causing the pump body 113 to return to its original position until the protruding position of the cam 243 pushes the push rod 244 to rise again. , and so on, making the pump body 113 vibrate until the gear rod 241 is separated from the gear rod 242, and the pump body 113 stops vibrating. Then observe the gas pressure measured by the air pressure sensor 225. Compared with the gas pressure measured before, a larger decrease indicates that there is leakage and it is unqualified. Otherwise, it is qualified. After injecting high-pressure gas into the pump body 113, the pump body 113 vibrates, simulating the vibration of the pump body 113 when driving on a car, which is more in line with the actual usage scenario and makes leakage points that are difficult to find under static conditions appear, thereby ensuring the accuracy of detection.

[0102] The synchronization assembly 31 includes a limit ring 311 slidably connected to the outer wall of the connecting block 226. A second rubber ring 312 is fixedly connected to the inner wall of the limit ring 311. Two blocking rods 313 are fixedly connected to the top of the placement rack 112. The inner wall of the limit ring 311 is slidably connected to the outer walls of the two push rods 244.

[0103] The clamping assembly 32 includes two arc-shaped blocks 321 slidably connected to the inner wall of the limiting ring 311. The inner wall of the limiting ring 311 is slidably connected to two rubber rings 312. The side walls of the two rubber rings 312 are fixedly connected to the side walls of the arc-shaped blocks 321.

[0104] When the pump body 113 is placed, the pump body 113 will squeeze the arc block 321, causing the arc block 321 to squeeze the spring return rod 322, allowing the spring return rod 322 to accumulate resilience. The resilience of the spring return rod 322 allows the arc block 321 to clamp the outer wall of the pump body 113. When the spring extrusion ring 123 squeezes the pump body 113, the pump body 113 will squeeze the rubber ring 2 312, causing the rubber ring 2 312 to deform and block the air inlet of the pump body 113. Figure 6 As shown in the state of G in the middle, the pump body 113 is clamped by the arc block 321. When the pump body 113 vibrates, the limit ring 311 and the second rubber ring 312 will vibrate synchronously, so that the second rubber ring 312 is always in a tightly fitted state with the pump body 113, effectively preventing the vibration of the pump body 113, which will cause the second rubber ring 312 to separate from the pump body 113, resulting in a decrease in sealing performance, which may cause gas to leak from the air inlet, affecting the accuracy of detection.

[0105] There is no limit on the number of the above components, and relevant technicians in this field can freely set them according to actual needs, as long as the above components are installed in the corresponding component connection positions.

[0106] A specific application of this embodiment is as follows: when the present invention is used, the operator places the pump body 113 to be tested in the placement rack 112, and then starts the cylinder 121 to extend, so that the extrusion block 122 and the spring extrusion ring 123 are lowered until the spring extrusion ring 123 contacts the top of the pump body 113, and the pump body 113 is squeezed to allow the spring extrusion ring 123 to accumulate rebound force. When the operator places the pump body 113, the connecting block 226 will enter the air inlet of the pump body 113, as shown in FIG. Figure 6 As shown in the state G in the middle, at the same time, when the extrusion block 122 descends, it will drive the connecting block 231 and the connecting rod 232 to descend, causing the blocking rod 234 to descend until the blocking rod 234 is blocked by the fixing plate 233. The connecting block 231 continues to descend, which will push the blocking rod 234 to move laterally, allowing the blocking rod 234 to move toward the pump body 113, so that the blocking rod 234 enters the air outlet of the pump body 113, as shown in FIG. Figure 8 As shown in the state H in the middle, the rubber ring 235 is fitted against the side wall of the pump body 113, squeezing the spring ring 236, allowing the spring ring 236 to accumulate resilience, squeezing the rubber ring 235, causing it to deform and block the air outlet;

[0107] After that, the electric telescopic rod 213 is started to extend, pushing the piston plate 212 to rise. When the piston plate 212 covers the air inlet hole 214, it will squeeze the gas in the gas collecting frame 211. At this time, the squeezed gas will be blocked by the spring ball rod 224, so the gas pressure will increase. As the piston plate 212 continues to move, the piston plate 212 will drive the convex plate 215 to contact the rocker plate 222, pushing the rocker plate 222 to rotate, so that the side of the rocker plate 222 in contact with the convex plate 215 rises and the other side falls. The falling side pushes the spring ball rod 224 to move. The ball rod 224 descends, separating the spring ball rod 224 from the inclined surface of the air inlet pipe 223, leaking out a gap. The high-pressure gas then enters the connecting block 226 through the gap, and then enters the pump body 113 through the connecting block 226, injecting high-pressure gas into the pump body 113. As the convex plate 215 continues to move, the convex plate 215 will separate from the rocker plate 222. At this time, the rebound force of the spring ball rod 224 will be released, causing it to return to its original position, again blocking the gas from entering the pump body 113. The gas pressure in the pump body 113 is measured by the air pressure sensor 225.

[0108] Then, the piston plate 212 continues to move, which drives the gear rod 241 to mesh with the gear rod 242, causing the gear rod 242 to rotate and the cam 243 to rotate. When the protruding position of the cam 243 contacts the push rod 244, the push rod 244 is pushed up, causing the push rod 244 to push the pump body 113 to rise, allowing the pump body 113 to squeeze the spring squeeze ring 123. When the protruding position of the push rod 244 is separated from the push rod 244, the rebound force of the squeeze block 122 is released, causing the pump body 113 to return to its original position until the protruding position of the cam 243 pushes the push rod 244 to rise again. , and so on, the pump body 113 vibrates until the gear rod 241 and the gear rod 242 are separated, so that the pump body 113 stops vibrating. Then, the gas pressure measured by the air pressure sensor 225 is observed. Compared with the gas pressure measured before, a large decrease indicates that there is leakage and it is unqualified. Otherwise, it is qualified. After injecting high-pressure gas into the pump body 113, the pump body 113 vibrates, simulating the vibration of the pump body 113 when it is running on a car. This is more in line with the actual usage scenario and can make leaks that are difficult to find in a static state appear, thereby ensuring the accuracy of the detection.

[0109] When the pump body 113 rises, the blocking rod 234 enters the pump body 113. At this time, the pump body 113 drives the blocking rod 234 to rise. At this time, since the connecting block 231 is in a stationary state, the blocking rod 234 rises, which causes the connecting rod 232 to fold, pushing the blocking rod 234 to move toward the pump body 113 when rising, so that the rubber ring 235 fits more tightly with the air outlet of the pump body 113.

[0110] The piston plate 212 then moves upwards, gradually increasing the pressure of the gas, and injecting the high-pressure gas into the pump body 113. The amount of gas injected into the pump body 113 each time is controlled. After that, the spring ball rod 224 is returned to its original position, blocking the air inlet pipe 223 again and stopping the injection of gas. The piston plate 212 continues to move upwards, which will increase the gas pressure in the gas collecting frame 211 again, making the gas pressure in the gas collecting frame 211 greater than the gas pressure in the pump body 113. When the pump body 113 vibrates subsequently, the gas in the gas collecting frame 211 is blocked by the spring ball rod 224 and cannot enter the pump body 113, effectively preventing the pump body 113 from leaking during the vibration process. The gas pressure in the pump body 113 is weakened, and the gas in the gas collecting frame 211 enters the pump body 113 again. The entry of external gas interferes with the actual leakage of the pump body 113.

[0111] Secondly, when the pump body 113 is placed, the pump body 113 will squeeze the arc block 321, causing the arc block 321 to squeeze the spring return rod 322, allowing the spring return rod 322 to accumulate resilience. Through the resilience of the spring return rod 322, the arc block 321 clamps the outer wall of the pump body 113. When the spring extrusion ring 123 squeezes the pump body 113, the pump body 113 will squeeze the rubber ring 2 312, causing the rubber ring 2 312 to deform and block the air inlet of the pump body 113. Figure 6 As shown in the state G in the middle, the pump body 113 is clamped by the arc block 321. When the pump body 113 vibrates, the limit ring 311 and the second rubber ring 312 will vibrate synchronously, so that the second rubber ring 312 is always in a tightly fitted state with the pump body 113, effectively preventing the vibration of the pump body 113, which would cause the second rubber ring 312 to separate from the pump body 113, resulting in a decrease in sealing performance, which may cause gas to leak from the air inlet, affecting the accuracy of the detection;

[0112] Secondly, when it is necessary to detect the static sealing of the pump body 113, the piston plate 212 only needs to rise, driving the convex plate 215 to push the seesaw plate 222 to rotate, allowing the spring ball rod 224 to fall, allowing the gas to enter the pump body 113. When the convex plate 215 is separated from the seesaw plate 222, the electric telescopic rod 213 is stopped, and the piston plate 212 is stopped, so that the high-pressure gas in the pump body 113 is kept under pressure for a period of time, and the gas pressure change in the pump body 113 is measured by the air pressure sensor 225 to detect the gas pressure change in the static state of the pump body 113. Then, the electric telescopic rod 213 is extended again to make the pump body 113 vibrate, so that the dynamic and static sealing of the pump body 113 can be tested at the same time, and two tests can be completed in one clamping, so that the detection efficiency and accuracy are both taken into consideration.

[0113] Among them, when the inspection of the pump body 113 is completed, the cylinder 121 is retracted by starting, so that the extrusion block 122 and the spring extrusion ring 123 are separated from the pump body 113, and the blocking rod 234 is separated from the pump body 113. At the same time, the electric telescopic rod 213 is retracted to make the piston plate 212 drop, so that the piston plate 212 returns to its position, so that the air inlet 214 is connected with the top of the piston plate 212 again, allowing the outside air to enter the top of the air inlet 214 to complete the replenishment of the gas. After that, the operator takes out the pump body 113. The removal process will drive the limit ring 311 to rise until the limit ring 311 contacts the blocking rod 313, blocking the limit ring 311 from rising, so that the limit ring 311 is separated from the pump body 113, and the inspection of the pump body 113 is completed.

[0114] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automobile water pump impeller seal detection device, comprising a detection platform (111), wherein a placement frame (112) is fixedly connected to the top of the detection platform (111), characterized in that: Also includes: A main body mechanism (1), a frame assembly (11) is fixedly mounted on the top of the main body mechanism (1), a drive assembly (12) is mounted on the top of the main body mechanism (1), and the frame assembly (11) is used to place a water pump to be tested; a vibration mechanism (2), the vibration mechanism (2) being mounted on the inner wall of the main body mechanism (1) and being used to generate vibration during the water pump detection process; and A sealing mechanism (3), the sealing mechanism (3) being located on the inner wall of the main mechanism (1) and being used to ensure sealing performance when the water pump vibrates; The inner wall of the detection table (111) is fixedly connected to a gas collecting frame (211), the inner wall of the placement rack (112) is fixedly connected to a connecting block (226), the inner wall of the gas collecting frame (211) is fixedly connected to an air inlet pipe (223), and the inner wall of the gas collecting frame (211) is slidably connected to a piston plate (212); The water pump to be tested is placed on a placement rack (112), and high-pressure gas is injected into the water pump through a vibration mechanism (2). At the same time, the water pump is vibrated to simulate an actual operation scenario, and then the sealing mechanism (3) is used to ensure the sealing of the air inlet and the air outlet when the water pump vibrates.

2. The automobile water pump impeller seal detection device according to claim 1, characterized in that: The main body (1) comprises: A frame assembly (11), wherein the bottom of the frame assembly (11) is fixedly arranged on the top of the test bench (111) and is used to place a water pump; A driving assembly (12), wherein the bottom of the driving assembly (12) is fixedly arranged on the top of the placement frame (112) and is used for squeezing the water pump; The water pump to be tested is placed on a placement rack (112), and the water pump is squeezed by a driving assembly (12).

3. The automobile water pump impeller seal detection device according to claim 2, characterized in that: The vibration mechanism (2) comprises: An extrusion assembly (21), the extrusion assembly (21) being fixedly arranged on the inner wall of the gas collecting frame (211) via a fixing member and being used for extruding gas; The fixing member includes an electric telescopic rod (213) fixedly connected to the inner wall of the gas collecting frame (211), and a plurality of air inlet holes (214) are provided on the inner walls of the gas collecting frame (211) and the testing platform (111); a blocking component (22), the blocking component (22) being fixedly arranged on the inner wall of the gas collecting frame (211) via a support member and being used for blocking gas; The support member comprises a fixing frame (221) fixedly connected to the inner wall of the gas collecting frame (211), and a seesaw (222) is rotatably connected to the outer wall of the fixing frame (221).

4. The automobile water pump impeller seal detection device according to claim 3, characterized in that: The vibration mechanism (2) further comprises: A blocking component (23), the blocking component (23) being fixedly arranged on the top of the placement rack (112) via a limiting member and being used for blocking the water pump; The limiting member comprises a fixing plate (233) fixedly connected to the top of the placement rack (112), and a blocking rod (234) is slidably connected to the inner wall of the fixing plate (233); A pushing component (24), the pushing component (24) being fixedly arranged on the top of the piston plate (212) via a connecting piece and being used to push the water pump to vibrate; The connecting member comprises two gear rods (241) fixedly connected to the top of the piston plate (212), and the inner wall of the gas collecting frame (211) is rotatably connected to two gear rods (242); The gas is squeezed by the squeezing component (21) and then blocked by the blocking component (22) to increase the gas pressure. After that, the gas is injected into the water pump and the water pump is blocked by the blocking component (23) to prevent the gas from leaking from the outlet. Finally, the water pump is vibrated by the pushing component (24) to simulate the actual operation scenario.

5. The automobile water pump impeller seal detection device according to claim 4, characterized in that: The sealing mechanism (3) comprises: A synchronization component (31), wherein the synchronization component (31) is slidably arranged on the top of the frame component (11) and is used to move synchronously with the water pump when the water pump vibrates; A clamping assembly (32), wherein the clamping assembly (32) is slidably disposed on an inner wall of the clamping assembly (32) and is used to clamp an outer wall of the water pump; The friction between the synchronizing component (31) and the water pump is increased by the clamping component (32), so that when the water pump vibrates, the synchronizing component (31) moves synchronously with the water pump, thereby blocking the air inlet and air outlet of the water pump.

6. The automobile water pump impeller seal detection device according to claim 5, characterized in that: The frame assembly (11) includes a pump body (113) slidably connected to the inner wall of the placement frame (112); A cylinder (121) is fixedly connected to one side of the placement rack (112) away from the pump body (113); an extrusion block (122) is fixedly connected to the bottom output end of the cylinder (121); and a spring extrusion ring (123) is slidably connected to the inner wall of the extrusion block (122); The pump body (113) to be tested is placed on the inner wall of the placement rack (112), and then the extrusion block (122) is lowered by starting the cylinder (121) to squeeze the pump body (113).

7. The automobile water pump impeller seal detection device according to claim 6, characterized in that: The extrusion assembly (21) includes a convex plate (215) fixedly connected to the top of the gas collecting frame (211), and the top output ends of the two electric telescopic rods (213) are fixedly connected to the bottom of the piston plate (212); The blocking assembly (22) includes a spring ball rod (224) slidably connected to the inner wall of the air inlet pipe (223), and an air pressure sensor (225) is fixedly connected to the inner wall of the connecting block (226); The piston plate (212) is pushed upward by activating the electric telescopic rod (213), squeezing the gas so that the gas is blocked by the spring spherical rod (224), thereby increasing the gas pressure. As the piston plate (212) continues to move, the convex plate (215) pushes the spring spherical rod (224) downward, allowing the high-pressure gas to enter the pump body (113).

8. The automobile water pump impeller seal detection device according to claim 7, characterized in that: The blocking assembly (23) comprises a connecting block (231) fixedly connected to the outer wall of the extrusion block (122); the bottom of the connecting block (231) is rotatably connected to a connecting rod (232); and the side wall of the blocking rod (234) is rotatably connected to the inner wall of the connecting rod (232); A spring ring (236) is slidably connected to the inner wall of the blocking rod (234), and a rubber ring (235) is fixedly connected to the side wall of the spring ring (236); When the extrusion block (122) descends, it drives the connection block (231) to descend, and pushes the blocking rod (234) to move through the connecting rod (232), so that the rubber ring (235) contacts the air outlet of the pump body (113) to block the air outlet.

9. The automobile water pump impeller seal detection device according to claim 8, characterized in that: The pushing assembly (24) includes a cam (243) fixedly connected to the outer wall of the gear rod (242), and the outer walls of the two gear rods (242) are meshed and connected with the side walls of the two gear rods (241); Two push rods (244) are slidably connected to the inner wall of the gas collecting frame (211), and the outer walls of the two push rods (244) are slidably connected to the inner wall of the placement rack (112); When the piston plate (212) rises, it also drives the gear rod (241) to rise and mesh with the gear rod (242), causing the gear rod (242) to rotate, allowing the cam (243) to push the push rod (244) to rise, thereby causing the pump body (113) to rise.

10. The automobile water pump impeller seal detection device according to claim 9, characterized in that: The synchronization component (31) includes a limit ring (311) slidably connected to the outer wall of the connecting block (226), a second rubber ring (312) is fixedly connected to the inner wall of the limit ring (311), two blocking rods (313) are fixedly connected to the top of the placement rack (112), and the inner wall of the limit ring (311) is slidably connected to the outer walls of the two top rods (244); The clamping assembly (32) includes two arc blocks (321) slidably connected to the inner wall of the limiting ring (311), and two rubber rings (312) are slidably connected to the inner wall of the limiting ring (311), and the side walls of the two rubber rings (312) are fixedly connected to the side walls of the arc blocks (321); When the pump body (113) is placed, the pump body (113) squeezes the arc block (321) to move, causing the arc block (321) to squeeze the spring return rod (322). The rebound force of the spring return rod (322) allows the arc block (321) to fit the outer wall of the pump body (113), so that the limiting ring (311) and the pump body (113) move synchronously.

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