A gear oil pump device

By combining liquid cooling circulation and air cooling in a gear oil pump device, the problem of low heat dissipation efficiency of gear oil pumps under high loads is solved, achieving efficient heat management and improved equipment stability.

CN224380096UActive Publication Date: 2026-06-19QIANJIANG HUAXINYIBODUN PETROLEUM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QIANJIANG HUAXINYIBODUN PETROLEUM EQUIP CO LTD
Filing Date
2025-08-19
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing gear oil pumps have low heat dissipation efficiency under high loads, making it difficult to meet the heat dissipation requirements in high-temperature environments, resulting in performance degradation and shortened service life.

Method used

The gear oil pump device, which combines multiple heat dissipation methods, includes a liquid cooling circulation system, an air cooling mechanism, and temperature sensor control. It absorbs heat through liquid cooling circulation, accelerates heat dissipation through air cooling fins, and uses bevel gear transmission to achieve synchronous fan blade rotation to accelerate the cooling of the coolant.

Benefits of technology

It achieves efficient thermal management, maintains the optimal operating temperature of the gear oil pump under different operating conditions, extends equipment life and reduces the risk of failure.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This application relates to the field of gear oil pump technology and discloses a gear oil pump device, including a gear oil pump, a water-cooled base fixedly installed at the bottom of the gear oil pump, a liquid storage chamber opened in the water-cooled base, a base fixedly installed at the bottom of the water-cooled base, a liquid storage tank fixedly installed on the right side of the base and the right side of the water-cooled base, a heat dissipation box fixedly installed on the top of the liquid storage tank, and a first mounting plate fixedly installed on the inner wall of the top and bottom of the heat dissipation box. This application has the following advantages and effects: by providing a first heat dissipation mechanism, the gear oil pump can be cooled by air; by providing a second heat dissipation mechanism, air can be blown into the liquid storage tank through ventilation holes, accelerating the airflow on the surface of the coolant. The heat dissipation holes form a thermal convection channel, efficiently removing the heat absorbed by the coolant, thereby accelerating the cooling of the coolant and improving the water cooling effect.
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Description

Technical Field

[0001] This application relates to the field of gear oil pump technology, and in particular to a gear oil pump device. Background Technology

[0002] Gear pumps, as key equipment used in industrial fields for conveying and pressurizing hydraulic fluids, are widely used in hydraulic systems, lubrication systems, and fuel delivery. During actual operation, gear pumps face severe heat dissipation challenges. On the one hand, during high-speed meshing and rotation of gears, friction on the gear surfaces, bearings, and the viscous friction within the hydraulic fluid continuously generate a large amount of heat, causing a rapid increase in pump body temperature. On the other hand, during the conveying process, pressure changes and flow resistance also lead to energy loss and conversion into heat. Excessive temperature can have many negative impacts on the performance and service life of gear pumps. Increased oil temperature reduces oil viscosity, leading to poor lubrication performance, accelerated wear of gears, bearings, and other components, and reduced equipment operating accuracy and stability. Simultaneously, high temperatures can cause oil oxidation and deterioration, producing sludge and impurities, clogging oil passages, and increasing the risk of system failure. In extreme cases, overheating may even cause aging and deformation of seals, resulting in oil leakage, which not only pollutes the working environment but may also lead to safety accidents.

[0003] In practical use, it has been found that some gear oil pumps on the market use a single cooling method, such as simple natural cooling or independent air-cooling or water-cooling systems. Natural cooling has low efficiency and is difficult to meet the needs of high-load operation; independent air-cooling systems are greatly affected by ambient temperature and have poor heat dissipation performance in high-temperature environments. Therefore, we propose a gear oil pump device to solve the above problems. Utility Model Content

[0004] The purpose of this application is to provide a gear oil pump device that employs multiple heat dissipation methods to improve heat dissipation efficiency.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a gear oil pump device, comprising a gear oil pump, a water-cooled base fixedly installed at the bottom of the gear oil pump, a liquid storage chamber opened in the water-cooled base, a base fixedly installed at the bottom of the water-cooled base, a liquid storage tank fixedly installed on the right side of the base and the right side of the water-cooled base, a heat sink fixedly installed on the top of the liquid storage tank, a first mounting plate fixedly installed on the inner wall of the top and bottom of the heat sink, a second mounting plate fixedly installed on the right side of the first mounting plate and the inner wall of the right side of the heat sink; a motor fixedly installed on the right side of the heat sink, a first heat dissipation mechanism provided between the motor output shaft and the first mounting plate, a second heat dissipation mechanism provided on the second mounting plate, a circulation pump provided on the inner wall of the top of the liquid storage tank, a liquid circulation mechanism provided between the circulation pump and the water-cooled base, and heat dissipation fins provided on the right side of the gear oil pump.

[0006] A further feature of this application is that the liquid circulation mechanism includes a liquid extraction pipe and a liquid delivery pipe. A liquid extraction pipe is provided on the left side of the circulation pump. The left end of the liquid extraction pipe is connected to the liquid storage chamber. A common liquid delivery pipe is provided between the liquid storage tank and the liquid storage chamber. The right end of the liquid delivery pipe is located below the liquid delivery pipe.

[0007] By adopting the above technical solution and setting up a liquid circulation mechanism, the circulation pump can draw the coolant in the storage chamber into the storage tank through the liquid extraction pipe. A negative pressure is generated in the storage chamber, and the coolant in the storage tank can be drawn back into the storage chamber in the water-cooled base through the liquid delivery pipe. This enables efficient absorption of heat from the gear oil pump through heat conduction from the water-cooled base, forming a closed liquid cooling circulation system, thereby achieving the purpose of direct heat exchange and cooling of the gear oil pump.

[0008] A further configuration of this application is: the first heat dissipation mechanism includes a first fan shaft and a first fan blade, the first fan shaft is fixedly mounted on the motor output shaft, the left end of the first fan shaft extends to the left side of the first mounting plate, and the left end of the first fan shaft is provided with a first fan blade.

[0009] By adopting the above technical solution and by setting a first heat dissipation mechanism, the motor can drive the first fan blade to rotate, and the airflow can be directly blown onto the heat dissipation fins through the ventilation port; the heat dissipation fins enhance heat radiation by increasing the heat dissipation area, and together with air cooling to accelerate heat dissipation, the purpose of air cooling heat dissipation of the gear oil pump can be achieved.

[0010] A further configuration of this application is: the second heat dissipation mechanism includes a second fan shaft and a second fan blade, the second fan shaft is rotatably mounted on the bottom of the second mounting plate, the top end of the second fan shaft extends above the second mounting plate, the bottom end of the second fan shaft is provided with a second fan blade, and a gear mechanism is provided between the second fan shaft and the first fan shaft.

[0011] By adopting the above technical solution and by setting a second heat dissipation mechanism, the second fan shaft can drive the second fan blade to rotate, so that the second fan blade can blow air into the liquid storage tank through the ventilation holes, accelerate the air flow on the surface of the coolant, and thus accelerate the cooling of the coolant and improve the water cooling effect.

[0012] A further configuration of this application is: the gear mechanism includes two bevel gears, and bevel gears are fixedly sleeved on the top end of the second sector shaft and on the first sector shaft. The bevel gears are located on the right side of the first mounting plate, and the two first bevel gears mesh with each other.

[0013] By adopting the above technical solution and by setting a gear mechanism, the first fan shaft can drive the second fan shaft to rotate synchronously.

[0014] A further feature of this application is that a ventilation opening is provided on the left side of the heat sink, the first fan blade is adapted to the ventilation opening, and the ventilation opening is adapted to the heat dissipation fins.

[0015] By adopting the above technical solution and by setting up ventilation openings, the first fan blade can blow airflow through the ventilation openings to the heat dissipation fins.

[0016] A further feature of this application is that a common ventilation hole is provided between the heat sink and the liquid storage tank, the ventilation hole is located on the right side of the first mounting plate, and the second fan blade is adapted to the ventilation hole.

[0017] By adopting the above technical solution and by setting ventilation holes, the second blade can blow airflow onto the coolant in the storage tank through the ventilation holes.

[0018] A further feature of this application is that the top of the heat sink is provided with an air inlet, which is located on the right side of the first mounting plate, and a dustproof mesh is provided inside the air inlet.

[0019] By adopting the above technical solution, and by setting up air inlets, airflow can be ensured, and dust and impurities can be prevented from entering the heat sink through the dust filter.

[0020] A further feature of this application is that the top of the liquid storage tank is provided with heat dissipation holes, which are located on the outside of the heat dissipation tank.

[0021] By adopting the above technical solution and by setting heat dissipation holes, the heat inside the liquid storage tank can be dissipated through the heat dissipation holes.

[0022] A further feature of this application is that a controller is provided on the front side of the heat sink, and a temperature sensor is provided on the front side of the gear oil pump, with the controller and the temperature sensor being electrically connected.

[0023] By adopting the above technical solution and by setting up a temperature sensor, the temperature of the gear oil pump can be monitored in real time, and the purpose of controlling the motor and circulating pump can be achieved through the controller.

[0024] The beneficial effects of this application are:

[0025] (1) Through the cooperation of temperature sensor and controller, the temperature sensor can monitor the temperature in real time and transmit the signal to the controller. When the temperature is too high and reaches the set threshold, the circulating pump and motor can be started. Through the cooperation of motor, first fan shaft, first fan blade and heat sink fins, the motor can drive the first fan blade to rotate. The high-speed rotation of the first fan blade can generate a strong airflow that blows directly to the heat sink fins through the ventilation port. The heat sink fins enhance heat radiation by increasing the heat dissipation area. With the help of air cooling, the heat dissipation of the gear oil pump can be accelerated.

[0026] (2) Through the cooperation of two bevel gears, the second fan shaft, the second fan blade and the ventilation hole, the first fan shaft can drive the second fan blade to rotate synchronously. It can blow air into the liquid storage tank through the ventilation hole, accelerate the air flow on the surface of the coolant, and form a heat convection channel by using the heat dissipation hole to efficiently remove the heat absorbed by the coolant. This can achieve the purpose of accelerating the cooling of the coolant and thus improving the water cooling effect. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural schematic diagram of a gear oil pump device according to this application;

[0029] Figure 2 This is a schematic diagram of the internal structure of the heat sink of a gear oil pump device according to this application;

[0030] Figure 3 This is a schematic diagram of the internal structure of the reservoir and base of a gear oil pump device according to this application;

[0031] Figure 4 This is a schematic diagram of structure A of a gear oil pump device according to this application.

[0032] In the diagram: 1. Gear oil pump; 101. Heat sink fins; 102. Temperature sensor; 2. Water-cooled base; 3. Base; 4. Liquid storage tank; 401. Circulation pump; 402. Liquid extraction pipe; 403. Liquid delivery pipe; 5. Heat sink; 501. Motor; 502. First fan shaft; 503. First fan blade; 6. First mounting plate; 7. Second mounting plate; 701. Second fan shaft; 702. Second fan blade; 703. Bevel gear; 8. Air inlet; 9. Heat dissipation hole; 10. Ventilation hole; 11. Controller. Detailed Implementation

[0033] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] See Figures 1-4This application provides a gear oil pump device, including a gear oil pump 1, a water-cooled base 2 fixedly mounted at the bottom of the gear oil pump 1, a liquid storage chamber opened in the water-cooled base 2, a base 3 fixedly mounted at the bottom of the water-cooled base 2, a liquid storage tank 4 fixedly mounted on the right side of the base 3 and the right side of the water-cooled base 2, a heat sink 5 fixedly mounted on the top of the liquid storage tank 4, a first mounting plate 6 fixedly mounted on the inner wall of the top and bottom of the heat sink 5, a second mounting plate 7 fixedly mounted on the right side of the first mounting plate 6 and the inner wall of the right side of the heat sink 5; a motor 501 fixedly mounted on the right side of the heat sink 5, a first heat dissipation mechanism provided between the output shaft of the motor 501 and the first mounting plate 6, a second heat dissipation mechanism provided on the second mounting plate 7, a circulation pump 401 provided on the inner wall of the top of the liquid storage tank 4, a liquid circulation mechanism provided between the circulation pump 401 and the water-cooled base 2, and a heat dissipation fin 101 provided on the right side of the gear oil pump 1.

[0035] Specifically, the liquid circulation mechanism includes a liquid extraction pipe 402 and a liquid delivery pipe 403. The liquid extraction pipe 402 is located on the left side of the circulation pump 401. The left end of the liquid extraction pipe 402 is connected to the liquid storage chamber. The same liquid delivery pipe 403 is provided between the liquid storage tank 4 and the liquid storage chamber. The right end of the liquid delivery pipe 403 is located below the liquid delivery pipe 403.

[0036] Specifically, the first heat dissipation mechanism includes a first fan shaft 502 and a first fan blade 503. The first fan shaft 502 is fixedly installed on the output shaft of the motor 501. The left end of the first fan shaft 502 extends to the left side of the first mounting plate 6. The first fan blade 503 is provided at the left end of the first fan shaft 502.

[0037] Specifically, the second heat dissipation mechanism includes a second fan shaft 701 and a second fan blade 702. The second fan shaft 701 is rotatably mounted on the bottom of the second mounting plate 7. The top end of the second fan shaft 701 extends above the second mounting plate 7. The bottom end of the second fan shaft 701 is provided with a second fan blade 702. A gear mechanism is provided between the second fan shaft 701 and the first fan shaft 502.

[0038] Specifically, the gear mechanism includes two bevel gears 703. The top of the second sector shaft 701 and the first sector shaft 502 are both fixedly fitted with bevel gears 703. The bevel gears 703 are located on the right side of the first mounting plate 6, and the two first bevel gears 703 mesh with each other.

[0039] Specifically, a ventilation opening is provided on the left side of the heat sink 5, the first fan blade 503 is adapted to the ventilation opening, and the ventilation opening is adapted to the heat sink fins 101.

[0040] Specifically, a common ventilation hole 10 is provided between the heat sink 5 and the liquid storage tank 4. The ventilation hole 10 is located on the right side of the first mounting plate 6, and the second fan blade 702 is adapted to the ventilation hole 10.

[0041] Specifically, the top of the heat sink 5 has an air inlet 8, which is located on the right side of the first mounting plate 6, and a dustproof mesh is installed inside the air inlet 8.

[0042] Specifically, the top of the liquid storage tank 4 is provided with heat dissipation holes 9, which are located on the outside of the heat dissipation tank 5.

[0043] Specifically, a controller 11 is installed on the front side of the heat sink 5, and a temperature sensor 102 is installed on the front side of the gear oil pump 1. The controller 11 and the temperature sensor 102 are electrically connected.

[0044] In this application, during operation, the gear oil pump 1 generates heat. Firstly, the temperature is monitored in real-time by the temperature sensor 102, and the signal is transmitted to the controller 11. The controller 11 intelligently adjusts the heat dissipation system according to a preset temperature threshold to ensure the equipment maintains the optimal operating temperature under different working conditions. When the temperature rises, the circulation pump 401 starts, drawing coolant from the storage chamber into the storage tank 4 through the suction pipe 402. A negative pressure is generated in the storage chamber, allowing coolant to be drawn back from the storage tank 4 into the storage chamber within the water-cooled base 2 through the delivery pipe 403. This enables efficient heat absorption from the gear oil pump 1 through heat conduction in the water-cooled base 2, forming a closed liquid-cooled circulation system, thereby achieving direct heat exchange for the gear oil pump 1. The purpose of cooling is to reduce temperature. At the same time, the motor 501 drives the first fan shaft 502 to rotate the first fan blade 503 at high speed, forming a strong airflow that blows directly onto the heat dissipation fins 101 through the ventilation port. The heat dissipation fins 101 enhance heat radiation by increasing the heat dissipation area, and together with air cooling, accelerate heat dissipation, thereby achieving the purpose of air cooling the gear oil pump 1. The first fan shaft 502 can drive the second fan shaft 701 and the second fan blade 702 to operate synchronously through the two bevel gears 703. It can blow air into the liquid storage tank 4 through the ventilation hole 10, accelerate the air flow on the surface of the coolant, and form a heat convection channel through the heat dissipation hole 9 to efficiently remove the heat absorbed by the coolant, thereby accelerating the cooling of the coolant and improving the water cooling effect.

Claims

1. A gear oil pump device, characterized in that, The system includes a gear oil pump (1), a water-cooled base (2) fixedly installed at the bottom of the gear oil pump (1), a liquid storage chamber opened in the water-cooled base (2), a base (3) fixedly installed at the bottom of the water-cooled base (2), a liquid storage tank (4) fixedly installed on the right side of the base (3) and the right side of the water-cooled base (2), a heat sink (5) fixedly installed on the top of the liquid storage tank (4), a first mounting plate (6) fixedly installed on the inner wall of the top and bottom of the heat sink (5), and a second mounting plate (7) fixedly installed on the right side of the first mounting plate (6) and the right side of the heat sink (5). A motor (501) is fixedly installed on the right side of the heat sink (5). A first heat dissipation mechanism is provided between the output shaft of the motor (501) and the first mounting plate (6). A second heat dissipation mechanism is provided on the second mounting plate (7). A circulation pump (401) is provided on the inner wall of the top of the liquid storage tank (4). A liquid circulation mechanism is provided between the circulation pump (401) and the water cooling base (2). A heat dissipation fin (101) is provided on the right side of the gear oil pump (1).

2. The gear oil pump device according to claim 1, characterized in that: The liquid circulation mechanism includes a liquid extraction pipe (402) and a liquid delivery pipe (403). The liquid extraction pipe (402) is provided on the left side of the circulation pump (401). The left end of the liquid extraction pipe (402) is connected to the liquid storage chamber. The same liquid delivery pipe (403) is provided between the liquid storage tank (4) and the liquid storage chamber. The right end of the liquid delivery pipe (403) is located below the liquid delivery pipe (403).

3. The gear oil pump device according to claim 1, characterized in that: The first heat dissipation mechanism includes a first fan shaft (502) and a first fan blade (503). The first fan shaft (502) is fixedly installed on the output shaft of the motor (501). The left end of the first fan shaft (502) extends to the left side of the first mounting plate (6). The left end of the first fan shaft (502) is provided with a first fan blade (503).

4. The gear oil pump device according to claim 1, characterized in that: The second heat dissipation mechanism includes a second fan shaft (701) and a second fan blade (702). The second fan shaft (701) is rotatably mounted on the bottom of the second mounting plate (7). The top end of the second fan shaft (701) extends above the second mounting plate (7). The bottom end of the second fan shaft (701) is provided with a second fan blade (702). A gear mechanism is provided between the second fan shaft (701) and the first fan shaft (502).

5. A gear oil pump device according to claim 4, characterized in that: The gear mechanism includes two bevel gears (703). The top end of the second sector shaft (701) and the first sector shaft (502) are both fixedly fitted with bevel gears (703). The bevel gears (703) are located on the right side of the first mounting plate (6), and the two bevel gears (703) mesh with each other.

6. The gear oil pump device according to claim 3, characterized in that: The heat sink (5) has a ventilation opening on the left side, the first fan blade (503) is adapted to the ventilation opening, and the ventilation opening is adapted to the heat dissipation fins (101).

7. A gear oil pump device according to claim 4, characterized in that: The heat sink (5) and the liquid storage tank (4) are provided with the same ventilation hole (10). The ventilation hole (10) is located on the right side of the first mounting plate (6). The second fan blade (702) is adapted to the ventilation hole (10).

8. The gear oil pump device according to claim 1, characterized in that: The heat sink (5) has an air inlet (8) on the top, the air inlet (8) is located on the right side of the first mounting plate (6), and a dustproof mesh is installed inside the air inlet (8).

9. A gear oil pump device according to claim 1, characterized in that: The liquid storage tank (4) has a heat dissipation hole (9) on its top, and the heat dissipation hole (9) is located on the outside of the heat dissipation tank (5).

10. A gear oil pump device according to claim 1, characterized in that: A controller (11) is provided on the front side of the heat sink (5), and a temperature sensor (102) is provided on the front side of the gear oil pump (1). The controller (11) is electrically connected to the temperature sensor (102).