Engine cooling water pump testing device

Abstract

The invention relates to the technical field of cooling water pump testing, and particularly discloses an engine cooling water pump testing device which comprises a shell and a water pump, the water pump is arranged in the shell and comprises a water inlet pipe arranged on the right side, a water outlet pipe arranged on the front side and a pump shaft arranged on the left side, a partition plate is arranged at the top of an inner cavity of the shell, and a testing module is arranged on the right side of the water pump. The first testing module comprises an outer layer ring and a first hose, sealing cavities are formed in a water inlet pipe, a water outlet pipe and a pump shaft of a pump body through the first testing module, the second testing module and the third testing module, and the sealing quality of the water inlet pipe, the water outlet pipe, the pump shaft and a water pump shell can be tested through a guide pipe and an air pressure sensor. When the sealing performance is tested, the shell of the water pump can be hit through the hitting ball, so that the water pump vibrates, whether the sealing performance of the joints of the water inlet pipe, the water outlet pipe and the pump shaft is changed or not when the water pump vibrates is tested, and the sealing effect when the water pump is vibrated is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of cooling water pump testing, and in particular relates to an engine cooling water pump testing device. Background Art

[0002] The cooling water pump is the main component for transporting cooling water in the closed-loop cooling system of the automobile engine. Its performance not only affects the power and economy of the automobile, but also affects the life of the entire machine. After the cooling water pump is tested, in order to ensure the quality of the cooling water pump, it is necessary to conduct a sealing performance test on the cooling water pump. In the prior art, gas is introduced into the cooling water pump, and whether the air pressure in the cooling water pump drops is determined to determine whether the cooling water pump is leaking. However, there are multiple connections at the cooling water pump. Although it is possible to determine whether there is a leak, it is impossible to determine the location of the leak. Summary of the invention

[0003] The object of the present invention is to provide an engine cooling water pump testing device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An engine cooling water pump test device comprises a housing and a water pump, wherein the water pump is arranged in the housing, the water pump comprises a water inlet pipe arranged on the right side, a water outlet pipe arranged on the front side and a pump shaft arranged on the left side, a partition is arranged on the top of the inner cavity of the housing, a measuring module is arranged on the right side of the water pump, the measuring module comprises an outer ring and a hose, the outer ring is sleeved on the outside of the water inlet pipe, and the hose is connected between the outer ring and the partition;

[0006] A second measuring module is provided at the front side of the water pump, and the second measuring module includes a top half ring and a second hose, the top half ring is sleeved on the outside of the water outlet pipe, and the second hose is connected between the top half ring and the partition;

[0007] A three-measurement module is provided on the left side of the water pump. The three-measurement module includes an end cover and a hose three. The end cover is sleeved on the outside of the pump shaft, and the hose three is connected between the end cover and the partition.

[0008] A monitoring module is provided above the partition, the monitoring module includes an air pressure sensor, and the air pressure sensor is connected to the top surface of the inner cavity of the shell;

[0009] A striking module is provided on the right side of the shell, and the striking module includes fan blades and a striking ball. The fan blade circular array is provided on the right side of the shell, and the striking ball is located at the rear side of the water pump.

[0010] Preferably, a pick-and-place slot is opened on the front side of the shell, a sealing door is provided in the pick-and-place slot, a fixing plate is symmetrically connected to the top of the front side of the sealing door, and the fixing plate is fixedly connected to the shell by positioning bolts, so as to facilitate the picking and placing of the water pump in the shell.

[0011] Preferably, a measuring module further comprises an annular notch, an inner ring, a connecting plate and a first-level electric telescopic rod, the annular notch is opened on the left side of the outer ring, the inner ring is arranged in the annular notch, and the left end of the inner ring passes through the annular notch, the connecting plate is connected to the top of the inner ring, the first-level electric telescopic rod is connected to the right side wall of the inner cavity of the shell, and the output end on the left side of the first-level electric telescopic rod is connected to the connecting plate, the water inlet pipe is connected to the first-level connecting pipe fitting, the first-level electric telescopic rod is turned on, and the connecting plate drives the inner ring to move left until the first-level sealing gasket fits with the water pump, thereby completing the setting of the first-level measuring module;

[0012] A primary sealing gasket is connected to the left side of the inner ring, and the left side of the primary sealing gasket is in contact with the water pump;

[0013] The right end of the outer ring is connected to the shell;

[0014] The right end of the water inlet pipe is connected with a first-level connecting pipe fitting, and the right end of the first-level connecting pipe fitting passes through the shell.

[0015] Preferably, the second measuring module also includes a support plate, a square notch, a bottom frame, a secondary electric telescopic rod, a bottom end column, a concave cavity and an assembly plate, the support plate is connected to the right side of the bottom surface of the shell cavity, the square notch is arranged at the front side of the support plate, the bottom frame is connected to the front side of the bottom of the shell, and the bottom frame cavity is connected to the square notch, the secondary electric telescopic rod is connected to the middle of the bottom of the bottom frame, the bottom surface of the bottom end column is connected to the output end of the top of the secondary electric telescopic rod, and the bottom end column passes through the square notch, the concave cavity is arranged at the top of the bottom end column, the assembly plate is symmetrically connected to both sides of the top semi-ring, and the assembly plate is connected to the bottom end column by positioning bolts, the water outlet pipe is connected to the secondary connecting pipe fitting, the secondary electric telescopic rod is opened, the bottom end column is raised until the tertiary sealing gasket contacts the water outlet pipe, and the positioning bolts are used to connect and fix the assembly plate to the bottom end column to complete the setting of the second measuring module;

[0016] The rear side of the inner wall of the top semi-ring and the rear side of the top of the bottom column are both connected with secondary sealing gaskets, and the secondary sealing gaskets are fitted with the outer wall of the water outlet pipe;

[0017] The front end of the water outlet pipe is connected with a secondary connecting pipe fitting, and the front end of the secondary connecting pipe fitting passes through the sealing door.

[0018] Preferably, the three-measurement module also includes a pushing plate, a sealing notch, a sealing plate, a three-stage electric telescopic rod and a connecting notch, the pushing plate is arranged on the left side of the inner cavity of the shell, and the top surface of the pushing plate is slidably matched with the bottom surface of the partition, the sealing notch is arranged in the pushing plate, and the sealing notch passes through the pushing plate on the left and right sides, the sealing notch is connected with the inner cavity of the end cover, the sealing plate is arranged in the sealing notch, the three-stage electric telescopic rod is connected to the left side wall of the inner cavity of the shell, and the output end on the right side of the three-stage electric telescopic rod is connected to the pushing plate, the connecting notch is arranged on the left side of the shell, and the right end of the connecting notch passes through the shell and is connected with the inner cavity of the shell, the three-stage electric telescopic rod is opened, the pushing plate drives the end cover to move right, until the left side of the water pump fits with the three-stage sealing gasket, the sealing plate is opened, and the personnel connects the coupling to the pump shaft through the connecting notch and the sealing notch, and closes the sealing plate to complete the setting of the three-measurement module;

[0019] A three-stage sealing gasket is provided on the right side of the inner wall of the end cover, and the right side of the three-stage sealing gasket is fitted with the water pump;

[0020] A coupling is connected to the left wall of the inner cavity of the end cover, and the coupling is connected to the pump shaft to fix the pump shaft. When the water pump vibrates, the influence of the vibration on the connection between the pump shaft and the water pump can be tested more effectively.

[0021] Preferably, the monitoring module also includes a first-level solenoid valve, an exhaust pipe and a second-level solenoid valve. The first-level solenoid valve is respectively arranged above hose one, above hose two and above hose three, and the first-level solenoid valve is at the top of the partition. The exhaust pipe is connected to the top of the shell, and the second-level solenoid valve is arranged on the exhaust pipe. After the test is completed, the second-level solenoid valve is opened to exhaust the gas in the shell to make the air pressure inside and outside the shell consistent.

[0022] Preferably, the striking module also includes a primary cover, a secondary cover, a connecting ring, a primary ring, a secondary ring, teeth, a round rod, a driving motor and a rotating shaft. The primary cover is arranged on the right side of the shell, and the right end of the primary connecting pipe is connected to the middle part of the primary cover, and the secondary cover is arranged on the right side of the primary cover. The connecting ring is slidably matched between the primary cover and the secondary cover, the primary ring is connected to the inner wall of the connecting ring, the secondary ring is connected to the outer wall of the connecting ring, and the outer wall of the primary ring is slidably matched with the primary cover and the inner wall of the secondary cover, the inner wall of the secondary ring is slidably matched with the primary cover and the outer wall of the secondary cover, the circumferential array of teeth is connected to the middle part of the outer wall of the secondary ring, the driving motor is fixedly connected to the middle part of the right end of the secondary cover by positioning bolts, the right end of the rotating shaft is connected to the output end of the driving motor, the left end of the rotating shaft passes through the secondary cover and is in the primary cover, the circumferential array of fan blades is connected to the outer wall of the rotating shaft, the round rod is connected between the fan blades and the primary ring, and the driving motor is turned on to make the rotating shaft drive the fan blades to rotate, so that the gas enters the water pump through the water inlet pipe;

[0023] A first-stage fixing rod is connected to the left circumferential array of the first-stage cover, and the left side of the first-stage fixing rod is connected to the shell;

[0024] The outer wall of the secondary cover is connected to a positioning plate in a circumferential array, the left side of the positioning plate is connected to a secondary fixing rod, and the left end of the secondary fixing rod is connected to the shell.

[0025] Preferably, the shock module also includes a gear, a linkage rod, a primary seal, a secondary seal, a circular plate, a transition plate and a return spring. The gear is arranged on the rear side of the secondary ring, and the gear is meshed with the teeth. The circular plate is arranged on the rear side of the water pump. The linkage rod is connected to the middle of the left end of the gear, and the left end of the linkage rod passes through the shell and is connected to the middle of the right side of the circular plate. The primary seal and the secondary seal are both slidably sleeved on the outer wall of the linkage rod, and the primary seal is connected to the right side of the shell, and the secondary seal is connected to the right wall of the inner cavity of the shell. The transition plate is symmetrically connected to both sides of the circular plate up and down, the return spring is connected to the side of the transition plate away from the circular plate, and the end of the return spring away from the transition plate is connected to the striking ball. Under the action of the teeth, the gear drives the linkage rod, the circular plate, the transition plate, the return spring and the striking ball to rotate. Under the action of the return spring, the striking ball will not affect the rotation of the circular plate, and will continuously hit the water pump to achieve the striking of the water pump, causing the water pump to vibrate.

[0026] Preferably, a conduit is connected in the middle of the top of the partition, and a three-stage solenoid valve is provided on the conduit. Through the provision of the conduit, when a leak occurs in the water pump housing, the air pressure at the upper and lower ends of the partition will be made consistent through the conduit.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: when the present invention is in use, a sealed chamber is formed at the water inlet pipe, the water outlet pipe and the pump shaft of the pump body through the first measuring module, the second measuring module and the third measuring module respectively, and the sealing quality of the water inlet pipe, the water outlet pipe, the pump shaft and the water pump casing can be tested respectively through the conduit and the air pressure sensor, and when performing the sealing performance test, the water pump casing can be hit by hitting the ball to make the water pump vibrate, so as to test whether the sealing performance of the water inlet pipe, the water outlet pipe and the pump shaft connection changes when the water pump vibrates, thereby achieving the sealing effect when the water pump is shocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure is a schematic diagram of the overall structure of an engine cooling water pump testing device.

[0029] Figure 2 The figure is a schematic diagram of the internal structure of a shell of an engine cooling water pump testing device.

[0030] Figure 3 This is a schematic diagram of the partition top structure of an engine cooling water pump test device.

[0031] Figure 4 The figure is a schematic diagram of a connecting notch of an engine cooling water pump testing device.

[0032] Figure 5 The figure is a schematic diagram of a sealing notch of an engine cooling water pump testing device.

[0033] Figure 6 The figure is a schematic diagram of a two-stage electric telescopic rod of an engine cooling water pump testing device.

[0034] Figure 7 The figure is a schematic diagram of the fan blades of an engine cooling water pump testing device.

[0035] Figure 8 The figure is a schematic diagram of a linkage rod of an engine cooling water pump testing device.

[0036] Fig. 9 The figure is a schematic diagram of the bottom column of an engine cooling water pump testing device.

[0037] Fig.10 The figure is a schematic diagram of an annular notch of an engine cooling water pump testing device.

[0038] In the figure: 1, shell; 11, take-and-place slot; 12, sealing door; 13, fixed plate; 2, water pump; 21, water inlet pipe; 22, water outlet pipe; 23, pump shaft; 3, partition; 31, catheter; 32, three-stage solenoid valve; 4, one-measurement module; 41, outer ring; 42, hose one; 43, annular slot; 44, inner ring; 45, connecting plate; 46, first-stage electric telescopic rod; 47, first-stage sealing gasket; 48, first-stage connecting pipe fitting; 5, second-measurement module; 51, top half ring; 52, hose two; 53, support plate; 54, square slot; 55, bottom frame; 56, second-stage electric telescopic rod; 57, bottom end column; 58, concave cavity; 59, assembly plate; 510, second-stage connecting pipe fitting; 511, second-stage sealing gasket; 6, three-measurement module; 61, end cover; 62, hose three ; 63. Push plate; 64. Sealing notch; 65. Sealing plate; 66. Three-stage electric telescopic rod; 67. Connecting notch; 68. Three-stage sealing gasket; 7. Monitoring module; 71. Air pressure sensor; 72. First-stage solenoid valve; 73. Exhaust pipe; 74. Second-stage solenoid valve; 8. Shock module; 81. Fan blade; 82. Beating ball; 83. First-stage cover; 84. Second-stage cover; 85. Connecting ring; 86. First-stage ring; 87. Second-stage ring; 88. Teeth; 89. Round rod; 810. Driving motor; 811. Rotating shaft; 812. First-stage fixed rod; 813. Positioning plate; 814. Second-stage fixed rod; 815. Gear; 816. Linkage rod; 817. First-stage seal; 818. Second-stage seal; 819. Round plate; 820. Transition plate; 821. Reset spring. DETAILED DESCRIPTION

[0039] Example 1

[0040] See also Figure 1-Figure 10 As shown, an engine cooling water pump test device comprises a housing 1 and a water pump 2, the water pump 2 is arranged in the housing 1, the water pump 2 comprises a water inlet pipe 21 arranged on the right side, a water outlet pipe 22 arranged on the front side and a pump shaft 23 arranged on the left side, a partition plate 3 is arranged on the top of the inner cavity of the housing 1, a measuring module 4 is arranged on the right side of the water pump 2, the measuring module 4 comprises an outer ring 41 and a hose 42, the outer ring 41 is sleeved on the outside of the water inlet pipe 21, and the hose 42 is connected between the outer ring 41 and the partition plate 3;

[0041] A second measuring module 5 is provided at the front side of the water pump 2. The second measuring module 5 includes a top semi-ring 51 and a second hose 52. The top semi-ring 51 is sleeved on the outside of the water outlet pipe 22. The second hose 52 is connected between the top semi-ring 51 and the partition 3.

[0042] A three-measurement module 6 is provided on the left side of the water pump 2. The three-measurement module 6 includes an end cover 61 and a hose 3 62. The end cover 61 is sleeved on the outside of the pump shaft 23. The hose 3 62 is connected between the end cover 61 and the partition 3.

[0043] A monitoring module 7 is provided above the partition 3, and the monitoring module 7 includes an air pressure sensor 71, and the air pressure sensor 71 is connected to the top surface of the inner cavity of the shell 1;

[0044] A striking module 8 is provided on the right side of the shell 1 , and the striking module 8 includes fan blades 81 and a striking ball 82 . The fan blades 81 are arranged in a circular array on the right side of the shell 1 , and the striking ball 82 is located at the rear side of the water pump 2 .

[0045] refer to Figure 1 As shown, a pick-up and placement slot 11 is opened on the front side of the shell 1, and a sealing door 12 is arranged in the pick-up and placement slot 11. A fixing plate 13 is symmetrically connected to the top of the front side of the sealing door 12, and the fixing plate 13 is fixedly connected to the shell 1 by positioning bolts, so as to facilitate the picking and placement of the water pump 2 in the shell 1.

[0046] refer to Figure 4-Figure 10 As shown, the first measuring module 4 also includes an annular notch 43, an inner ring 44, a connecting plate 45 and a first-level electric telescopic rod 46. The annular notch 43 is opened on the left side of the outer ring 41, the inner ring 44 is arranged in the annular notch 43, and the left end of the inner ring 44 passes through the annular notch 43, the connecting plate 45 is connected to the top of the inner ring 44, the first-level electric telescopic rod 46 is connected to the right side wall of the inner cavity of the shell 1, and the output end on the left side of the first-level electric telescopic rod 46 is connected to the connecting plate 45, the water inlet pipe 21 is connected to the first-level connecting pipe 48, the first-level electric telescopic rod 46 is opened, and the connecting plate 45 drives the inner ring 44 to move left until the first-level sealing gasket 47 fits with the water pump 2, and the setting of the first measuring module 4 is completed;

[0047] A primary sealing gasket 47 is connected to the left side of the inner ring 44, and the left side of the primary sealing gasket 47 is in contact with the water pump 2;

[0048] The right end of the outer ring 41 is connected to the housing 1;

[0049] The right end of the water inlet pipe 21 is connected to a primary connecting pipe 48 , and the right end of the primary connecting pipe 48 passes through the shell 1 .

[0050] refer to Figure 1-Figure 10 As shown, the second measuring module 5 also includes a support plate 53, a square notch 54, a bottom frame 55, a secondary electric telescopic rod 56, a bottom end column 57, a concave cavity 58 and an assembly plate 59, the support plate 53 is connected to the right side of the bottom surface of the inner cavity of the shell 1, the square notch 54 is opened on the front side of the support plate 53, the bottom frame 55 is connected to the front side of the bottom of the shell 1, and the inner cavity of the bottom frame 55 is connected to the square notch 54, the secondary electric telescopic rod 56 is connected to the middle of the bottom of the bottom frame 55, the bottom surface of the bottom end column 57 is connected to the output end of the top of the secondary electric telescopic rod 56, and the bottom end column 57 passes through the square notch 54, the concave cavity 58 is opened at the top of the bottom column 57, the assembly plate 59 is symmetrically connected to both sides of the top half ring 51, and the assembly plate 59 is connected to the bottom column 57 through positioning bolts, connecting the water outlet pipe 22 and the secondary connecting pipe 510, turning on the secondary electric telescopic rod 56, so that the bottom column 57 rises until the tertiary sealing gasket 68 contacts the water outlet pipe 22, and using positioning bolts, the assembly plate 59 and the bottom column 57 are connected and fixed, completing the setting of the second measurement module 5;

[0051] The rear side of the inner wall of the top half ring 51 and the rear side of the top of the bottom column 57 are both connected with a secondary sealing gasket 511, and the secondary sealing gasket 511 fits with the outer wall of the water outlet pipe 22;

[0052] A secondary connecting pipe 510 is connected to the front end of the water outlet pipe 22 , and the front end of the secondary connecting pipe 510 passes through the sealing door 12 .

[0053] refer to Figure 2-Figure 5 and Fig. 9As shown, the three-measurement module 6 also includes a push plate 63, a sealing notch 64, a sealing plate 65, a three-stage electric telescopic rod 66 and a connecting notch 67. The push plate 63 is arranged on the left side of the inner cavity of the shell 1, and the top surface of the push plate 63 is slidably matched with the bottom surface of the partition 3. The sealing notch 64 is opened in the push plate 63, and the sealing notch 64 passes through the push plate 63 from left to right. The sealing notch 64 is connected to the inner cavity of the end cover body 61. The sealing plate 65 is arranged in the sealing notch 64. The three-stage electric telescopic rod 66 is connected to the left side wall of the inner cavity of the shell 1, and the three The output end on the right side of the three-stage electric telescopic rod 66 is connected to the push plate 63, and the communication slot 67 is opened on the left side of the shell 1, and the right end of the communication slot 67 passes through the shell 1 and is connected to the inner cavity of the shell 1. The three-stage electric telescopic rod 66 is opened, so that the push plate 63 drives the end cover 61 to move rightward until the left side of the water pump 2 fits with the three-stage sealing gasket 68, and the sealing plate 65 is opened. Through the communication slot 67 and the sealing slot 64, the personnel connect the coupling to the pump shaft 23, and close the sealing plate 65 to complete the setting of the three-measurement module 6;

[0054] A third-stage sealing gasket 68 is provided on the right side of the inner wall of the end cover 61, and the right side of the third-stage sealing gasket 68 is in contact with the water pump 2;

[0055] A coupling is connected to the left wall of the inner cavity of the end cover body 61, and the coupling is connected to the pump shaft 23 to fix the pump shaft 23. When the water pump 2 vibrates, the influence of the vibration on the connection between the pump shaft 23 and the water pump 2 can be tested more effectively.

[0056] refer to Figure 1-Figure 9 As shown, the monitoring module 7 also includes a first-level solenoid valve 72, an exhaust pipe 73 and a second-level solenoid valve 74. The first-level solenoid valve 72 is respectively arranged above the hose 1 42, the hose 2 52 and the hose 3 62, and the first-level solenoid valve 72 is at the top of the partition 3. The exhaust pipe 73 is connected to the top of the shell 1, and the second-level solenoid valve 74 is arranged on the exhaust pipe 73. After the test is completed, the second-level solenoid valve 74 is opened to exhaust the gas in the shell 1 to make the air pressure inside and outside the shell 1 consistent.

[0057] refer to Figure 1-Figure 8As shown, the striking module 8 also includes a primary cover 83, a secondary cover 84, a connecting ring 85, a primary ring 86, a secondary ring 87, teeth 88, a round rod 89, a driving motor 810 and a rotating shaft 811. The primary cover 83 is arranged on the right side of the housing 1, and the right end of the primary connecting pipe 48 is connected to the middle of the primary cover 83, the secondary cover 84 is arranged on the right side of the primary cover 83, the connecting ring 85 is slidably matched between the primary cover 83 and the secondary cover 84, the primary ring 86 is connected to the inner wall of the connecting ring 85, the secondary ring 87 is connected to the outer wall of the connecting ring 85, and the outer wall of the primary ring 86 is slidably matched with the inner walls of the primary cover 83 and the secondary cover 84, and the secondary ring 87 is connected to the outer wall of the connecting ring 85. The inner wall is slidably matched with the outer wall of the primary cover 83 and the secondary cover 84, the tooth 88 is connected in a circumferential array to the middle of the outer wall of the secondary ring 87, the drive motor 810 is fixedly connected to the middle of the right end of the secondary cover 84 by a positioning bolt, the right end of the rotating shaft 811 is connected to the output end of the drive motor 810, the left end of the rotating shaft 811 passes through the secondary cover 84 and is in the primary cover 83, the fan blade 81 is connected in a circumferential array to the outer wall of the rotating shaft 811, the round rod 89 is connected between the fan blade 81 and the primary ring 86, the drive motor 810 is turned on, the rotating shaft 811 drives the fan blade 81 to rotate, and the gas enters the water pump 2 through the water inlet pipe 21;

[0058] The first-stage cover 83 is connected to a first-stage fixing rod 812 in a circumferential array on the left side, and the left side of the first-stage fixing rod 812 is connected to the housing 1;

[0059] The outer wall of the secondary cover 84 is connected to a positioning plate 813 in a circumferential array, the left side of the positioning plate 813 is connected to a secondary fixing rod 814 , and the left end of the secondary fixing rod 814 is connected to the shell 1 .

[0060] refer to Figure 7 and Figure 8As shown, the striking module 8 also includes a gear 815, a linkage rod 816, a primary seal 817, a secondary seal 818, a circular plate 819, a transition plate 820 and a reset spring 821. The gear 815 is arranged at the rear side of the secondary ring 87, and the gear 815 is meshed and connected with the tooth 88. The circular plate 819 is arranged at the rear side of the water pump 2. The linkage rod 816 is connected to the middle of the left end of the gear 815, and the left end of the linkage rod 816 passes through the shell 1 and is connected to the middle of the right side of the circular plate 819. The primary seal 817 and the secondary seal 818 are both slidably sleeved on the outer wall of the linkage rod 816, and the primary seal 817 is connected to the right side of the shell 1. The secondary seal Component 818 is connected to the right wall of the inner cavity of the shell 1, the transition plate 820 is symmetrically connected to the two sides of the circular plate 819, the return spring 821 is connected to the side of the transition plate 820 away from the circular plate 819, and the end of the return spring 821 away from the transition plate 820 is connected to the striking ball 82. Under the action of the teeth 88, the gear 815 drives the linkage rod 816, the circular plate 819, the transition plate 820, the return spring 821 and the striking ball 82 to rotate. Under the action of the return spring 821, the striking ball 82 will not affect the rotation of the circular plate 819, and will continuously hit the water pump 2 to hit the water pump 2 and cause the water pump 2 to vibrate.

[0061] refer to Figure 3 and Figure 4 As shown, a conduit 31 is connected to the middle of the top of the partition 3, and a three-stage solenoid valve 32 is provided on the conduit 31. Through the setting of the conduit 31, when a leak occurs in the casing of the water pump 2, the air pressure at the upper and lower ends of the partition 3 will be consistent through the conduit 31.

[0062] Working principle: The water pump 2 is placed on the top of the support plate in the housing 1, and the three-stage electric telescopic rod 66 is turned on, so that the push plate 63 drives the end cover 61 to move rightward until the left side of the water pump 2 fits with the three-stage sealing gasket 68, and the sealing plate 65 is opened. Through the connecting notch 67 and the sealing notch 64, the personnel connects the coupling to the pump shaft 23, and closes the sealing plate 65 to complete the setting of the three-measurement module 6, connects the water inlet pipe 21 to the first-stage connecting pipe 48, and opens a The first-level electric telescopic rod 46 is opened to make the connecting plate 45 drive the inner ring 44 to move to the left, until the first-level sealing gasket 47 fits with the water pump 2, and the setting of the first measuring module 4 is completed. The outlet pipe 22 is connected to the second-level connecting pipe 510, and the second-level electric telescopic rod 56 is opened to make the bottom end column 57 rise until the third-level sealing gasket 68 contacts with the outlet pipe 22. The locating bolts are used to connect and fix the assembly plate 59 and the bottom end column 57, and the setting of the second measuring module 5 is completed;

[0063] The secondary connecting pipe 510 is closed through an external valve, and the driving motor 810 is turned on, so that the rotating shaft 811 drives the fan blade 81 to rotate, and the gas enters the water pump 2 through the water inlet pipe 21. If the air pressure sensor 71 does not detect the air pressure change, it means that the water pump 2 has no leakage and its sealing performance is sufficient;

[0064] If the air pressure sensor 71 detects an increase in air pressure, it means that the water pump 2 is leaking, and the gas flows into the housing 1, increasing the air pressure. At this time, close the first-level solenoid valve 72 on the hose 1 42. If the value of the air pressure sensor 71 does not continue to increase, it means that the gas leaked from the water inlet pipe 21 and the first-level connecting pipe 48 will not enter the top of the partition 3, so that it can be determined whether the connection of the water inlet pipe 21 is leaking;

[0065] If the first-level solenoid valve 72 on the hose 1 42 is closed and the value of the air pressure sensor 71 continues to increase, then there is no leakage at the connection of the water inlet pipe 21. Continue to close the first-level solenoid valve 72 on the hose 2 52. Similarly, if the value of the air pressure sensor 71 does not continue to increase, there is a leakage at the connection between the water outlet pipe 22 and the second-level connecting pipe 510.

[0066] If the first-level solenoid valve 72 on the second hose 52 is closed, and the value of the air pressure sensor 71 continues to increase, then there is no leakage at the connection of the water outlet pipe 22. Continue to close the first-level solenoid valve 72 on the third hose 62. Similarly, if the value of the air pressure sensor 71 does not continue to increase, there is leakage at the connection between the pump shaft 23 and the water pump 2.

[0067] If the first-level solenoid valve 72 on the hose 3 62 is closed, and the value of the air pressure sensor 71 continues to increase, then there is no leakage at the connection between the pump shaft 23 and the water pump 2, and the third-level solenoid valve 32 on the conduit 31 continues to be closed. Similarly, if the value of the air pressure sensor 71 does not continue to increase, cracks appear in the shell of the water pump 2 and leakage occurs, thereby testing the sealing performance of the shell of the water pump 2, the connection of the water inlet pipe 21 of the water pump 2, the connection of the water outlet pipe 22 of the water pump 2, and the connection between the water pump 2 and the pump shaft 23, so that personnel can more accurately determine the location of the leakage of the water pump 2;

[0068] When the fan blade 81 rotates to guide air, it will drive the round rod 89, the primary ring 86, the connecting ring 85, and the secondary ring 87 to rotate. Under the action of the tooth 88, the gear 815 drives the linkage rod 816, the circular plate 819, the transition plate 820, the reset spring 821, and the striking ball 82 to rotate. Under the action of the reset spring 821, the striking ball 82 will not affect the rotation of the circular plate 819, and will continuously hit the water pump 2 to hit the water pump 2, causing the water pump 2 to vibrate, while the primary sealing gasket 47, the secondary sealing gasket 511, and the tertiary sealing gasket 82 will not affect the rotation of the circular plate 819. The setting of the gasket 68 can ensure the sealing effect of the connection between the water inlet pipe 21, the water outlet pipe 22 and the pump shaft 23, while having a certain buffering effect, thereby reducing the fixing effect of the first measuring module 4, the second measuring module 5 and the third measuring module 6 on the water inlet pipe 21, the water outlet pipe 22 and the pump shaft 23, thereby ensuring that the vibration effect of the hitting ball 82 on the water pump 2 can fully act on the connection between the water inlet pipe 21, the water outlet pipe 22 and the pump shaft 23, and more effectively detect the sealing of the connection between the water inlet pipe 21, the water outlet pipe 22 and the pump shaft 23 when it is shocked.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine cooling water pump test device, comprising a housing (1) and a water pump (2), characterized in that: The water pump (2) is arranged in the housing (1), and the water pump (2) comprises a water inlet pipe (21) arranged on the right side, a water outlet pipe (22) arranged on the front side, and a pump shaft (23) arranged on the left side. A partition plate (3) is arranged on the top of the inner cavity of the housing (1). A measuring module (4) is arranged on the right side of the water pump (2). The measuring module (4) comprises an outer ring (41) and a hose (42). The outer ring (41) is sleeved on the outside of the water inlet pipe (21), and the hose (42) is connected between the outer ring (41) and the partition plate (3). A second measuring module (5) is provided at the front side of the water pump (2), and the second measuring module (5) comprises a top semi-ring (51) and a second hose (52), wherein the top semi-ring (51) is sleeved on the outside of the water outlet pipe (22), and the second hose (52) is connected between the top semi-ring (51) and the partition plate (3); A three-measurement module (6) is provided on the left side of the water pump (2), and the three-measurement module (6) comprises an end cover (61) and a hose three (62), wherein the end cover (61) is sleeved on the outside of the pump shaft (23), and the hose three (62) is connected between the end cover (61) and the partition (3); A monitoring module (7) is provided above the partition (3), the monitoring module (7) comprising an air pressure sensor (71), and the air pressure sensor (71) is connected to the top surface of the inner cavity of the shell (1); A striking module (8) is provided on the right side of the housing (1), and the striking module (8) comprises fan blades (81) and a striking ball (82). The fan blades (81) are arranged in a circular array on the right side of the housing (1), and the striking ball (82) is located at the rear side of the water pump (2).

2. The engine cooling water pump testing device according to claim 1, characterized in that: A take-in and put-out slot (11) is provided on the front side of the housing (1), a sealing door (12) is provided in the take-in and put-out slot (11), a fixing plate (13) is symmetrically connected to the top end of the front side of the sealing door (12), and the fixing plate (13) is fixedly connected to the housing (1) via positioning bolts.

3. The engine cooling water pump testing device according to claim 1, characterized in that: A measuring module (4) further comprises an annular notch (43), an inner ring (44), a connecting plate (45) and a first-level electric telescopic rod (46); the annular notch (43) is opened on the left side of the outer ring (41); the inner ring (44) is arranged in the annular notch (43), and the left end of the inner ring (44) passes through the annular notch (43); the connecting plate (45) is connected to the top of the inner ring (44); the first-level electric telescopic rod (46) is connected to the right side wall of the inner cavity of the shell (1); and the output end on the left side of the first-level electric telescopic rod (46) is connected to the connecting plate (45); The left side of the inner ring (44) is connected to a primary sealing gasket (47), and the left side of the primary sealing gasket (47) is in contact with the water pump (2); The right end of the outer ring (41) is connected to the housing (1); The right end of the water inlet pipe (21) is connected to a primary connecting pipe (48), and the right end of the primary connecting pipe (48) passes through the shell (1).

4. The engine cooling water pump testing device according to claim 2, characterized in that: The second measuring module (5) also includes a support plate (53), a square notch (54), a bottom frame (55), a secondary electric telescopic rod (56), a bottom end column (57), an inner concave cavity (58) and an assembly plate (59), wherein the support plate (53) is connected to the right side of the bottom surface of the inner cavity of the shell (1), the square notch (54) is arranged on the front side of the support plate (53), the bottom frame (55) is connected to the front side of the bottom of the shell (1), and the inner cavity of the bottom frame (55) and the square notch (54) are aligned. The secondary electric telescopic rod (56) is connected to the middle of the bottom of the bottom frame (55), the bottom surface of the bottom end column (57) is connected to the output end of the top of the secondary electric telescopic rod (56), and the bottom end column (57) passes through the square notch (54), the concave cavity (58) is opened at the top of the bottom end column (57), the assembly plate (59) is symmetrically connected to the two sides of the top half ring (51), and the assembly plate (59) is connected to the bottom end column (57) through positioning bolts; The rear side of the inner wall of the top half ring (51) and the rear side of the top of the bottom column (57) are both connected with a secondary sealing gasket (511), and the secondary sealing gasket (511) is in contact with the outer wall of the water outlet pipe (22); The front end of the water outlet pipe (22) is connected to a secondary connecting pipe (510), and the front end of the secondary connecting pipe (510) passes through the sealing door (12).

5. The engine cooling water pump testing device according to claim 1, characterized in that: The three-measurement module (6) also includes a pushing plate (63), a sealing notch (64), a sealing plate (65), a three-stage electric telescopic rod (66) and a connecting notch (67); the pushing plate (63) is arranged on the left side of the inner cavity of the shell (1), and the top surface of the pushing plate (63) is slidably matched with the bottom surface of the partition (3); the sealing notch (64) is arranged in the pushing plate (63), and the sealing notch (64) passes through the pushing plate (63) from left to right; the sealing notch (64) is connected to the inner cavity of the end cover (61); the sealing plate (65) is arranged in the sealing notch (64); the three-stage electric telescopic rod (66) is connected to the left side wall of the inner cavity of the shell (1), and the output end on the right side of the three-stage electric telescopic rod (66) is connected to the pushing plate (63); the connecting notch (67) is arranged on the left side of the shell (1), and the right end of the connecting notch (67) passes through the shell (1) and is connected to the inner cavity of the shell (1); A third-stage sealing gasket (68) is provided on the right side of the inner wall of the end cover body (61), and the right side of the third-stage sealing gasket (68) is in contact with the water pump (2); A coupling is connected to the left wall of the inner cavity of the end cover body (61), and the coupling is connected to the pump shaft (23).

6. The engine cooling water pump testing device according to claim 1, characterized in that: The monitoring module (7) further comprises a primary solenoid valve (72), an exhaust pipe (73) and a secondary solenoid valve (74); the primary solenoid valve (72) is respectively arranged above the first hose (42), above the second hose (52) and above the third hose (62); the primary solenoid valve (72) is located at the top of the partition (3); the exhaust pipe (73) is connected to the top of the housing (1); and the secondary solenoid valve (74) is arranged on the exhaust pipe (73).

7. The engine cooling water pump testing device according to claim 3, characterized in that: The striking module (8) further comprises a primary cover (83), a secondary cover (84), a connecting ring (85), a primary ring (86), a secondary ring (87), teeth (88), a round rod (89), a driving motor (810) and a rotating shaft (811); the primary cover (83) is arranged on the right side of the housing (1); the right end of the primary connecting pipe (48) is connected to the middle of the primary cover (83); the secondary cover (84) is arranged on the right side of the primary cover (83); the connecting ring (85) is slidably matched between the primary cover (83) and the secondary cover (84); the primary ring (86) is connected to the inner wall of the connecting ring (85); the secondary ring (87) is connected to the outer wall of the connecting ring (85); and the outer wall of the primary ring (86) is connected to the outer wall of the connecting ring (85). The wall is slidably matched with the inner wall of the primary cover (83) and the secondary cover (84), the inner wall of the secondary ring (87) is slidably matched with the outer wall of the primary cover (83) and the secondary cover (84), the tooth (88) is circumferentially arrayed and connected to the middle part of the outer wall of the secondary ring (87), the driving motor (810) is fixedly connected to the middle part of the right end of the secondary cover (84) by means of a positioning bolt, the right end of the rotating shaft (811) is connected to the output end of the driving motor (810), the left end of the rotating shaft (811) passes through the secondary cover (84) and is located in the primary cover (83), the fan blade (81) is circumferentially arrayed and connected to the outer wall of the rotating shaft (811), and the round rod (89) is connected between the fan blade (81) and the primary ring (86); The first-stage cover (83) is connected to a first-stage fixing rod (812) in a circular array on the left side, and the left side of the first-stage fixing rod (812) is connected to the housing (1); The outer wall of the secondary cover (84) is connected to a positioning plate (813) in a circumferential array, the left side of the positioning plate (813) is connected to a secondary fixing rod (814), and the left end of the secondary fixing rod (814) is connected to the housing (1).

8. The engine cooling water pump testing device according to claim 7, characterized in that: The striking module (8) further comprises a gear (815), a linkage rod (816), a primary seal (817), a secondary seal (818), a circular plate (819), a transition plate (820) and a return spring (821); the gear (815) is arranged at the rear side of the secondary ring (87), and the gear (815) is meshedly connected with the teeth (88); the circular plate (819) is arranged at the rear side of the water pump (2); the linkage rod (816) is connected to the middle of the left end of the gear (815), and the left end of the linkage rod (816) passes through the housing (1) and is connected to the circular plate (819). The first-level seal (817) and the second-level seal (818) are both slidably mounted on the outer wall of the linkage rod (816), and the first-level seal (817) is connected to the right side of the shell (1), and the second-level seal (818) is connected to the right wall of the inner cavity of the shell (1). The transition plate (820) is symmetrically connected to both sides of the circular plate (819) in an upper and lower manner. The return spring (821) is connected to the side of the transition plate (820) away from the circular plate (819), and the end of the return spring (821) away from the transition plate (820) is connected to the striking ball (82).

9. The engine cooling water pump testing device according to claim 1, characterized in that: A conduit (31) is connected to the middle of the top of the partition (3), and a three-stage electromagnetic valve (32) is provided on the conduit (31).

Images