An automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump

Abstract

The present invention discloses an automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump, which comprises a frame base, on which the high-pressure water pump is installed; a first cooling mechanism, installed on the frame base and used for cooling the water pump; and a temperature detection mechanism, used for detecting the temperature inside the crankcase of the water pump. The first cooling mechanism includes an adjustment device and a cooling device. The two groups of cooling devices are symmetrically arranged on both sides of the water pump and installed on the adjustment device, and the distance between the cooling devices can be adjusted through the adjustment device. Through the device of the present invention, the temperature monitoring and cooling of the high-pressure water pump can be realized to meet the industrial use requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of an automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump, and particularly relates to an automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump. Background Art

[0002] During the long-term use of a high-pressure water pump, faults such as serious wear, jamming, deformation, and fracture of the crankshaft and bearing bush in the crankcase are likely to occur, and in severe cases, the crankcase body may even be damaged. Abnormal wear and damage lead to an increase in maintenance costs. The average maintenance time for each pump is about 3 days, and the maintenance cost is about 20,000. The main reason for this fault is that the lubricating oil temperature in the crankcase rises, resulting in a decline in lubrication effect and ultimately causing damage to the crankshaft and bearing bush.

[0003] Therefore, in view of the above problems, an automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump is urgently needed. Summary of the Invention

[0004] In view of this, the present invention discloses an automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump, which can effectively solve the above problems existing in the prior art.

[0005] To achieve the above object, the technical solution of the present invention provides an automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump, which includes a frame seat, on which the high-pressure water pump is installed; a first cooling mechanism, installed on the frame seat and used for cooling the water pump; a temperature detection mechanism, used for detecting the temperature inside the crankcase of the water pump.

[0006] The first cooling mechanism includes an adjustment device and a cooling device. Two groups of the cooling devices are symmetrically arranged on both sides of the water pump and installed on the adjustment device, and the distance between the cooling devices can be adjusted through the adjustment device.

[0007] Further, the cooling device includes a connection block, a distance adjustment structure, and a heat dissipation structure. The connection block is a cuboid cavity structure. The distance adjustment structure is installed inside the connection block. Two heat dissipation structures are symmetrically installed on both sides of the connection block and penetrate the connection block to be connected with the distance adjustment structure, and the distance between the two heat dissipation structures can be adjusted through the distance adjustment structure.

[0008] The heat dissipation structure includes a connection pipe body assembly, an exhaust fan body assembly, and an exhaust housing assembly. The distance adjustment structure inside the connection block is connected with the connection pipe body assembly. The connection pipe body assembly is connected with the exhaust housing assembly. The exhaust fan body assembly is installed inside the exhaust housing assembly.

[0009] Further, the exhaust housing assembly includes a support base and heat sinks. The support base is a circular hollow structure, and a plurality of the heat sinks are installed on the circumferential direction of the support base. The plurality of heat sinks and the support base enclose a cavity structure for the built-in exhaust fan assembly.

[0010] Further, the connecting pipe assembly includes a first connecting pipe, a first annular heat dissipation pipe, a second connecting pipe, and a second annular heat dissipation pipe. The first annular heat dissipation pipe and the second annular heat dissipation pipe penetrate through the heat sinks. Two ends of the first connecting pipe are respectively connected to the connecting block and the first annular heat dissipation pipe, and two ends of the second connecting pipe are respectively connected to the connecting block and the second annular heat dissipation pipe.

[0011] Further, the spacing adjustment structure includes a first turntable, a rotating shaft, a first gear, a second gear, a first lead screw, an adjustment block, and a mounting plate. The rotating shaft penetrates through the connecting block and is connected to the first gear. The other end of the rotating shaft is connected to the first turntable. Two mounting plates are installed in the connecting block. Two first lead screws are respectively rotatably installed between the mounting plate and the inner wall of the connecting block. The second gear is sleeved on the first lead screw, and the second gear is meshed and connected to the first gear. The adjustment block is threadedly sleeved on the first lead screw. The first connecting pipe and the second connecting pipe penetrate through the connecting block and are connected to the adjustment block.

[0012] Further, the exhaust fan body assembly includes a motor, a drive shaft, a first fan blade, and a second fan blade assembly. The motor is installed on the support base. The drive shaft is arranged in the cavity structure formed by the enclosure of the support base and the exhaust housing assembly, and the drive shaft is connected to the motor. The first fan blade is installed on the drive shaft at the end away from the motor, and the second fan blade assembly is installed on the drive shaft between the motor and the first fan blade.

[0013] Further, the second fan blade assembly includes an annular disc, a connecting rod, and a second fan blade. The annular disc is sleeved outside the drive shaft, and the annular disc is fixed on the drive shaft through the connecting rod. The annular disc is arranged between the support base and the first fan blade. The second fan blade is an arc-shaped plate structure, and the second fan blade is installed on the annular disc;

[0014] The first annular heat dissipation pipe is arranged on the outer circumference of the first fan blade, and the second annular heat dissipation pipe is arranged on the outer circumference of the second fan blade.

[0015] Further, the adjusting device includes an adjusting seat, a second lead screw, a second turntable, and a moving block. The adjusting seat is installed at the axisymmetric position at the bottom of the frame base. The second lead screw is a bidirectional threaded lead screw. Two ends of the second lead screw penetrate through the adjusting seat and are connected to the second turntable. Two moving blocks are symmetrically threadedly sleeved on the second lead screw. The top of the moving block penetrates through the frame base and is connected to the connecting block.

[0016] Further, the second cooling mechanism includes a cooling housing, a cooling water pipe, a fan, and an exhaust fan. The cooling housing is a rectangular parallelepiped cavity structure with open top and bottom. The cooling housing is installed above the frame seat. A number of cooling water pipes are provided in the cavity structure of the cooling housing. A fan is installed on one side wall of the cooling housing, and an exhaust fan is provided on the other side of the cooling housing opposite to the fan.

[0017] The fan and the exhaust fan are arranged on the side wall adjacent to the cooling device, and the circumferential inner side wall of the cooling housing is hollowed out.

[0018] Further, the temperature detection mechanism includes a temperature sensor. The temperature sensor is arranged in the crankcase. The circuit board is arranged outside the water pump. The circuit board is provided with a voltage conditioning chip, an analog-to-digital converter, a single-chip microcomputer, a data memory, and a wireless signal transceiver module. One end of the temperature sensor is connected to the voltage conditioning chip. The voltage conditioning chip is connected to the analog-to-digital converter. The analog-to-digital converter is connected to the single-chip microcomputer. The single-chip microcomputer is connected to the data memory and the wireless signal transceiver module.

[0019] The advantages and beneficial effects of the present invention are as follows:

[0020] (1) The high-pressure water pump is installed on the frame seat, and then the distance between the cooling devices is adjusted by the adjusting device. The cooling devices help to reduce the temperature of the high-pressure water pump. In addition, the temperature detection mechanism is used to monitor the temperature of the high-pressure water pump.

[0021] (2) The adjusting block is made of metal. The adjusting block is connected to the metal plate on the connecting block. The first connecting pipe and the second connecting pipe are connected to the adjusting block, so as to achieve the function of heat conduction and cooling. In addition, through the combined action of the first turntable, the rotating shaft, the first gear, the second gear, and the first lead screw, the distance between the heat dissipation structures is adjusted to meet the use of water pumps of different sizes.

[0022] (3) The cooling water pipe is composed of a number of U-shaped pipes connected end to end to form a pipeline, and both ends of the pipeline penetrate through the cooling housing, so as to facilitate the flow of cold water in the pipeline. In addition, the fan blows air into the cooling housing, and the exhaust fan exhausts air to the outside on the other side, so as to achieve cooling.

[0023] (4) Through the technical solution of the present invention, the temperature monitoring and cooling of the high-pressure water pump can be realized to meet the industrial use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of an automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump according to the present invention;

[0025] Figure 2 is Figure 1 the first-angle structural diagram of

[0026] Figure 3 is Figure 1 the schematic diagram of the second angle structure of

[0027] Figure 4 is Figure 1 the schematic diagram of the disassembled structure of

[0028] Figure 5 the schematic diagram of the disassembled structure of the second cooling mechanism;

[0029] Figure 6 is Figure 4 the schematic diagram of the partial structure of

[0030] Figure 7 is Figure 6 the schematic diagram of another angle structure of

[0031] Figure 8 is Figure 6 the schematic diagram of the disassembled structure of

[0032] Figure 9 is Figure 8 the schematic diagram of the partial structure of

[0033] Figure 10 the schematic diagram of the spacing adjustment structure and the heat dissipation structure;

[0034] Figure 11 is Figure 10 the schematic diagram of another angle structure of

[0035] Figure 12 is Figure 11 the partial enlarged view of A in

[0036] Figure 13 is Figure 11 the partial enlarged view of B in

[0037] Figure 14 the schematic diagram of the exhaust fan body assembly;

[0038] Figure 15 the schematic diagram of the temperature detection mechanism.

[0039] Frame base 1, connecting block 2, support base 3, heat sink 4, first connecting pipe 5, first annular heat dissipation pipe 6, second connecting pipe 7, second annular heat dissipation pipe 8, first turntable 9, rotating shaft 10, first gear 11, second gear 12, first lead screw 13, adjusting block 14, mounting plate 15, drive shaft 16, first fan blade 17, annular disc 18, connecting rod 19, second fan blade 20, adjusting seat 21, second lead screw 22, second turntable 23, moving block 24, cooling housing 25, cooling water pipe 26, fan 27, exhaust fan 28. Detailed implementation manners

[0040] The following combines the accompanying drawings and embodiments to further describe the detailed implementation manners of the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0041] As Figures 1 - 15 shown, a high-pressure water pump crankcase oil temperature monitoring and automatic protection device includes a frame base 1, and the high-pressure water pump is installed on the frame base 1; a first cooling mechanism, installed on the frame base 1 and used for cooling the water pump; a temperature detection mechanism, used to detect the temperature inside the crankcase of the water pump.

[0042] The first cooling mechanism includes an adjusting device and a cooling device. The two cooling devices are symmetrically arranged on both sides of the water pump and installed on the adjusting device, and the distance between the cooling devices can be adjusted through the adjusting device.

[0043] In the above technical solution, the high-pressure water pump is installed on the frame base, and then the distance between the cooling devices is adjusted through the adjusting device. The cooling device helps to reduce the temperature of the high-pressure water pump; in addition, the temperature detection mechanism is used to monitor the temperature of the high-pressure water pump.

[0044] As a preference of the above technical solution, the cooling device includes a connecting block 2, a distance adjusting structure and a heat dissipation structure. The connecting block 2 is a cuboid cavity structure. The distance adjusting structure is installed in the connecting block 2. The two heat dissipation structures are symmetrically installed on both sides of the connecting block 2 and penetrate the connecting block 2 to be connected with the distance adjusting structure, and the distance between the two heat dissipation structures can be adjusted through the distance adjusting structure.

[0045] The heat dissipation structure includes a connecting pipe body assembly, an exhaust fan body assembly and an exhaust housing assembly. The distance adjusting structure in the connecting block 2 is connected with the connecting pipe body assembly. The connecting pipe body assembly is connected with the exhaust housing assembly. The exhaust fan body assembly is installed in the exhaust housing assembly.

[0046] As a preference of the above technical solution, the exhaust housing assembly includes a support base 3 and heat dissipation fins 4. The support base 3 is a circular hollow structure. A plurality of the heat dissipation fins 4 are installed on the circumferential direction of the support base 3, and a plurality of the heat dissipation fins 4 and the support base 3 enclose a cavity structure convenient for the exhaust fan assembly to be built in. The heat dissipation fins play a role in heat dissipation.

[0047] As a preference of the above technical solution, the connecting pipe body assembly includes a first connecting pipe 5, a first annular heat dissipation pipe 6, a second connecting pipe 7 and a second annular heat dissipation pipe 8. The first annular heat dissipation pipe 6 and the second annular heat dissipation pipe 8 penetrate through the heat dissipation fins 4. Two ends of the first connecting pipe 5 are respectively connected to the connecting block 2 and the first annular heat dissipation pipe 6, and two ends of the second connecting pipe 7 are respectively connected to the connecting block 2 and the second annular heat dissipation pipe 8.

[0048] In the above technical solution, the side of the connecting block close to the water pump is a metal plate, and a deformable elastic metal sheet is provided on the metal plate. The adjusting device can make the elastic metal sheet contact with the water pump, so that the temperature in the water pump is transmitted to the metal plate on the connecting block through the elastic metal sheet. The metal plate is connected to the first connecting pipe and the second connecting pipe through a spacing adjusting structure, so that the high temperature on the water pump is transmitted through the connecting pipe body assembly, and the cooling of the water pump is accelerated under the action of the exhaust fan body assembly.

[0049] As a preference of the above technical solution, the spacing adjusting structure includes a first turntable 9, a rotating shaft 10, a first gear 11, a second gear 12, a first lead screw 13, an adjusting block 14 and a mounting plate 15. The rotating shaft 10 penetrates through the connecting block 2 and is connected to the first gear 11. The other end of the rotating shaft 10 is connected to the first turntable 9. Two first lead screws 13 are rotatably installed in the connecting block 2 through the mounting plate 15. The second gear 12 is sleeved on the first lead screw 13. The second gear 12 is meshed and connected with the first gear 11. The adjusting block 14 is threadedly sleeved on the first lead screw 13. The first connecting pipe 5 and the second connecting pipe 7 penetrate through the connecting block 2 and are connected to the adjusting block 14.

[0050] In the above technical solution, the adjusting block is made of metal. The adjusting block is connected to the metal plate on the connecting block, and the first connecting pipe and the second connecting pipe are connected to the adjusting block, so as to achieve the function of heat conduction and cooling. In addition, the adjustment of the spacing between the heat dissipation structures is realized through the combined action of the first turntable, the rotating shaft, the first gear, the second gear and the first lead screw to meet the use of water pumps of different sizes.

[0051] As a preference of the above technical solution, the exhaust fan body assembly includes a motor, a driving shaft 16, a first fan blade 17 and a second fan blade assembly. The motor is installed on the support seat 3. The driving shaft 16 is arranged in a cavity structure formed by the enclosure of the support seat 3 and the exhaust housing assembly, and the driving shaft 16 is connected to the motor. The first fan blade 17 is installed on the driving shaft at the end away from the motor, and the second fan blade assembly is installed on the driving shaft between the motor and the first fan blade.

[0052] As a preference of the above technical solution, the second blade member includes an annular disk 18, a connecting rod 19 and a second blade 20. The annular disk 18 is sleeved outside the driving shaft 16, and the annular disk 18 is fixed on the driving shaft 16 through the connecting rod 19. The annular disk 18 is arranged between the support seat 3 and the first blade 17. The second blade 20 is in an arc plate-like structure and is installed on the annular disk 18.

[0053] The first annular heat dissipation pipe 6 is arranged on the outer circumference of the first blade 17, and the second annular heat dissipation pipe 8 is arranged on the outer circumference of the second blade 20.

[0054] In the above technical solution, under the combined action of the first blade and the second blade, it is beneficial to reduce the temperature of the water pump.

[0055] As a preference of the above technical solution, the adjusting device includes an adjusting seat 21, a second lead screw 22, a second turntable 23 and a moving block 24. The adjusting seat 21 is installed at the axisymmetric position at the bottom of the frame seat 1. The second lead screw 22 is a bidirectional thread lead screw. Both ends of the second lead screw 22 penetrate through the adjusting seat 21 and are connected to the second turntable 23. The two moving blocks 24 are symmetrically thread sleeved on the second lead screw 22, and the top of the moving block 24 penetrates through the frame seat 1 and is connected to the connecting block 2.

[0056] The distance between the connecting blocks is realized through the adjusting device to meet the requirements of different water pump sizes.

[0057] As a preference of the above technical solution, it further includes a second cooling mechanism. The second cooling mechanism includes a cooling housing 25, a cooling water pipe 26, a fan 27 and an exhaust fan 28. The cooling housing 25 is a cuboid cavity structure with open top and bottom. The cooling housing 25 is installed above the frame seat 1. A number of cooling water pipes 26 are arranged in the cavity structure of the cooling housing 25. A fan 27 is installed on one side wall of the cooling housing 25, and an exhaust fan 28 is arranged on the other side of the cooling housing 25 opposite to the fan 27.

[0058] The fan 27 and the exhaust fan 28 are arranged on the side wall adjacent to the cooling device, and the inner circumferential side wall of the cooling housing 25 is hollowed out.

[0059] In the above technical solution, the cooling water pipes are composed of a number of U-shaped pipes connected end to end to form a pipeline, and both ends of the pipeline penetrate through the cooling housing to facilitate the flow of cold water in the pipeline. In addition, air is blown into the cooling housing by the fan, and exhausted from the other side by the exhaust fan, so as to achieve cooling.

[0060] As a preference of the above technical solution, the temperature detection mechanism includes a temperature sensor disposed in the crankcase, the circuit board is disposed outside the water pump, and a voltage conditioning chip, an analog-to-digital converter, a single-chip microcomputer, a data memory, and a wireless signal transceiver module are provided on the circuit board. One end of the temperature sensor is connected to the voltage conditioning chip, the voltage conditioning chip is connected to the analog-to-digital converter, the analog-to-digital converter is connected to the single-chip microcomputer, and the single-chip microcomputer is connected to the data memory and the wireless signal transceiver module.

[0061] In the above technical solution, the temperature sensor is used to detect the temperature. The voltage conditioning chip is used to convert the input terminal level and output a level matching the analog-to-digital converter. The output terminal of the analog-to-digital converter is connected to the single-chip microcomputer. The analog-to-digital converter converts the sampling signal into a digital signal and outputs it. The single-chip microcomputer performs operations on the received signal and transmits it to the wireless signal transceiver module. The wireless signal transceiver module transmits the data to the computer connected to it, thereby realizing remote computer monitoring.

[0062] The implementation principle of the present invention is as follows:

[0063] First, install the water pump on the frame seat, and then use the adjusting device to make the metal plate on the connecting block close to the water pump. The deformable elastic metal sheet on the metal plate can be in contact with the surface of the water pump partially or entirely through deformation. Then, through the combined action of the first turntable, the rotating shaft, the first gear, the second gear, and the first lead screw, the distance between the heat dissipation structures is adjusted to meet the use of water pumps of different sizes. Among them, the adjusting block is made of metal, the adjusting block is connected to the metal plate on the connecting block, and the first connecting pipe and the second connecting pipe are connected to the adjusting block, so as to achieve the effect of heat conduction and temperature reduction. In addition, the temperature is dissipated through the exhaust fan body assembly. In addition, under the action of the second cooling mechanism, the temperature of the water pump is reduced.

[0064] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump, characterized in that, It includes a frame base (1), and a high-pressure water pump is installed on the frame base (1); a first cooling mechanism, which is installed on the frame base (1) and is used for cooling the water pump; a temperature detection mechanism, which is used for detecting the temperature inside the crankcase of the water pump; The first cooling mechanism includes an adjustment device and a cooling device. The two cooling devices are symmetrically arranged on both sides of the water pump and installed on the adjustment device, and the distance between the cooling devices can be adjusted through the adjustment device; The cooling device includes a connection block (2), a distance adjustment structure and a heat dissipation structure. The connection block (2) is a cuboid cavity structure. The distance adjustment structure is installed in the connection block (2). The two heat dissipation structures are symmetrically installed on both sides of the connection block (2) and penetrate the connection block (2) to be connected with the distance adjustment structure, and the distance between the two heat dissipation structures can be adjusted through the distance adjustment structure; The heat dissipation structure includes a connecting pipe body assembly, an exhaust fan body assembly and an exhaust housing assembly. The distance adjustment structure in the connection block (2) is connected with the connecting pipe body assembly. The connecting pipe body assembly is connected with the exhaust housing assembly. The exhaust fan body assembly is installed in the exhaust housing assembly; The exhaust housing assembly includes a support base (3) and heat dissipation fins (4). The support base (3) is a circular hollow structure. A plurality of the heat dissipation fins (4) are installed on the circumferential direction of the support base (3), and a plurality of the heat dissipation fins (4) and the support base (3) enclose a cavity structure convenient for the exhaust fan assembly to be built-in; The connecting pipe body assembly includes a first connecting pipe (5), a first annular heat dissipation pipe (6), a second connecting pipe (7) and a second annular heat dissipation pipe (8). The first annular heat dissipation pipe (6) and the second annular heat dissipation pipe (8) penetrate through the heat dissipation fins (4). The two ends of the first connecting pipe (5) are respectively connected with the connection block (2) and the first annular heat dissipation pipe (6). The two ends of the second connecting pipe (7) are respectively connected with the connection block (2) and the second annular heat dissipation pipe (8); The distance adjustment structure includes a first turntable (9), a rotating shaft (10), a first gear (11), a second gear (12), a first lead screw (13), an adjustment block (14), and a mounting plate (15). The rotating shaft (10) penetrates the connection block (2) and is connected with the first gear (11). The other end of the rotating shaft (10) is connected with the first turntable (9). The two first lead screws (13) are rotatably installed in the connection block (2) through the mounting plate (15). The second gear (12) is sleeved on the first lead screw (13). The second gear (12) is meshed and connected with the first gear (11). The adjustment block (14) is threadedly sleeved on the first lead screw (13). The first connecting pipe (5) and the second connecting pipe (7) penetrate the connection block (2) and are connected with the adjustment block (14).

2. The automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump according to claim 1, characterized in that, The exhaust fan body assembly comprises a motor, a drive shaft (16), a first fan blade (17) and a second fan blade member, the motor is mounted on a bracket seat (3), the drive shaft (16) is arranged in a cavity structure formed by the bracket seat (3) and the exhaust shell assembly, and the drive shaft (16) is connected to the motor, the first fan blade (17) is mounted on the drive shaft at one end away from the motor, and the second fan blade member is mounted on the drive shaft between the motor and the first fan blade.

3. The automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump according to claim 2, characterized in that, The second fan blade member comprises an annular disk (18), a connecting rod (19) and a second fan blade (20); the annular disk (18) is sleeved on the outside of the driving shaft (16), and the annular disk (18) is fixed to the driving shaft (16) via the connecting rod (19); the annular disk (18) is arranged between the bracket seat (3) and the first fan blade (17); the second fan blade (20) is an arc-shaped plate structure, and the second fan blade is mounted on the annular disk (18); The first annular heat dissipation tube (6) is arranged outside the circumference of the first fan blade (17), and the second annular heat dissipation tube (8) is arranged outside the circumference of the second fan blade (20).

4. The automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump according to claim 1, characterized in that, The adjustment device comprises an adjustment seat (21), a second screw rod (22), a second rotating disk (23) and a moving block (24); the adjustment seat (21) is mounted at an axially symmetrical position at the bottom of the frame seat (1); the second screw rod (22) is a bidirectional threaded screw rod; both ends of the second screw rod (22) pass through the adjustment seat (21) and are connected to the second rotating disk (23); two moving blocks (24) are symmetrically threadedly sleeved on the second screw rod (22); and the top of the moving block (24) passes through the frame seat (1) and is connected to the connecting block (2).

5. An automatic protection device for monitoring the oil temperature of a high-pressure water pump crankcase according to claim 1, characterized in that, It also includes a second cooling mechanism, which includes a cooling shell (25), a cooling water pipe (26), a fan (27) and an exhaust fan (28); the cooling shell (25) is a rectangular cavity structure with open top and bottom; the cooling shell (25) is installed above the rack seat (1); a plurality of cooling water pipes (26) are arranged in the cavity structure of the cooling shell (25); a fan (27) is installed on a side wall at one end of the cooling shell (25); and an exhaust fan (28) is arranged on the other side of the cooling shell (25) opposite to the fan (27); The fan (27) and the exhaust fan (28) are arranged on a side wall adjacent to the cooling device, and the circumferential inner side wall of the cooling shell (25) is hollowed out.

6. The automatic protection device for monitoring the oil temperature of the crankcase of a high-pressure water pump according to claim 1, characterized in that, The temperature detection mechanism includes a temperature sensor, which is arranged in the crankcase. A circuit board is arranged outside the water pump, and a voltage conditioning chip, an analog-to-digital converter, a single-chip microcomputer, a data storage device, and a wireless signal transceiver module are arranged on the circuit board. One end of the temperature sensor is connected to the voltage conditioning chip, the voltage conditioning chip is connected to the analog-to-digital converter, the analog-to-digital converter is connected to the single-chip microcomputer, and the single-chip microcomputer is connected to the data storage device and the wireless signal transceiver module.

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