Efficient cooling device of gear pump

Abstract

The utility model discloses an efficient heat dissipation device of a gear pump, which belongs to the technical field of heat dissipation of gear pumps and comprises a metal box body, flow guide pipe fittings are connected to two ends of the metal box body in a penetrating manner, a hydraulic transmission component is arranged in the metal box body, transmission connecting seats are mounted on two sides of the metal box body, and a water cooling groove is formed in the metal box body. According to the scheme, through cooperative use of the water cooling tank, the hydraulic transmission frame, the introduction pipe fitting, the discharge pipe fitting and the circulation channel, an external cooling medium can be input into the metal box body; a cooling medium input into the metal box body can perform heat exchange treatment on the temperature in the metal frame body through the heat conduction part, so that direct heat dissipation treatment on friction heat between meshing gears in the pump and between the gears and the pump body can be realized; and the problems of clamping stagnation and aggravated abrasion caused by the fact that the temperature in the gear pump cannot be effectively dissipated can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of gear pump heat dissipation technology, and in particular to a high-efficiency heat dissipation device for gear pumps. Background Technology

[0002] Gear pumps, as a commonly used positive displacement hydraulic component, are widely used in engineering machinery, petrochemicals, and lubrication systems. However, during long-term high-load operation, various heat sources, such as frictional heat between the meshing gears and between the gears and the pump body, as well as liquid shear heat, can cause a significant increase in the temperature of the working medium. This, in turn, reduces the viscosity of the oil, exacerbates internal leakage, and can lead to pump body deformation or seal failure.

[0003] Currently, gear pumps mainly rely on heat sinks, external oil coolers, or air-cooling devices for heat dissipation. However, these heat dissipation methods have many limitations. On the one hand, heat sinks, external oil coolers, and air-cooling devices are often structurally complex, which not only increases the difficulty of installation and maintenance but also increases the risk of failure due to the large number of components, affecting the normal operation of the gear pump. Moreover, these devices are bulky and occupy a lot of space, making them difficult to install and arrange effectively in some equipment or places with strict space requirements. On the other hand, these heat dissipation methods cannot directly dissipate the frictional heat between the meshing gears inside the pump and between the gears and the pump body. As a result, a large amount of heat can only be transferred to the entire pump through the pump casing via thermal conduction, leading to uneven temperature distribution within the pump body and severe local overheating. In severe cases, this can even reduce the operating accuracy of the gear pump, potentially causing problems such as jamming and accelerated wear, thereby affecting its normal operation, reducing its service life, and posing certain safety hazards during use.

[0004] Based on this, we propose a high-efficiency heat dissipation device for gear pumps to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a high-efficiency heat dissipation device for gear pumps, which can solve the problems of traditional gear pump heat dissipation methods being complex in structure, bulky in size, and unable to directly dissipate the frictional heat generated between the meshing gears inside the pump and the gears and the pump body, resulting in local overheating, uneven temperature and equipment safety hazards.

[0007] To solve the above technical problems, this utility model provides a high-efficiency heat dissipation device for a gear pump, which adopts the following technical solution: it includes a metal box, with guide pipes connected through both ends of the metal box, a hydraulic transmission assembly inside the metal box, transmission connection seats installed on both sides of the metal box, a water cooling tank inside the metal box, and a hydraulic transmission frame installed in the middle of the metal box near the water cooling tank.

[0008] The metal box is connected to an inlet pipe on the side away from the flow guide pipe, and an outlet pipe is provided on the side of the metal box away from the inlet pipe. The inlet pipe, the outlet pipe and the water cooling tank are connected through the water cooling tank. A circulation channel is also provided through the bottom of the water cooling tank.

[0009] Optionally, the hydraulic transmission frame includes a metal frame, and heat-conducting components are provided on the outer sides of both ends of the metal frame.

[0010] Optionally, the hydraulic transmission assembly includes two sets of transmission gears, one set of which has a drive shaft mounted in the middle, the drive shaft matching the transmission connection seat structure, and the other set of transmission gears having hinge slots on both sides.

[0011] Optionally, the metal frame has a hydraulic cavity inside, which is matched with two sets of transmission gears. The hydraulic cavity and the two sets of transmission gears are in transition fit. A hinge shaft is connected to one side of the hydraulic cavity. The hinge shaft is matched with a hinge groove structure. The hinge shaft and the hinge groove are in hinge fit. Positioning slots are also provided on both sides of the two ends of the metal frame.

[0012] Optionally, the heat-conducting component includes an arc-shaped heat-conducting cover, with positioning plates installed at both ends of the arc-shaped heat-conducting cover.

[0013] Optionally, the arc-shaped heat-conducting cover is matched with the metal frame structure, and the arc-shaped heat-conducting cover and the metal frame are in a transition fit. The positioning plate is matched with the positioning slot structure, and the positioning plate and the positioning slot are in a snap-fit ​​fit.

[0014] In summary, this utility model has at least one of the following beneficial effects:

[0015] 1. The gear pump cooling device designed in this scheme, by setting an inlet pipe on one side of the metal housing and forming a through connection between the inlet pipe and the water cooling tank, can efficiently introduce external cooling medium (coolant or cryogenic gas) into the metal housing. The introduced cooling medium exchanges heat with the heat generated inside the metal frame through the heat-conducting components, which can directly dissipate the frictional heat between the meshing gears and between the gears and the pump body. Through the above structural design, precise heat dissipation of key heat-generating parts can be achieved, effectively preventing problems such as reduced oil viscosity, increased internal leakage, pump body deformation or seal failure caused by local overheating, thereby significantly improving the stability and reliability of gear pump operation.

[0016] 2. The gear pump cooling device designed in this scheme forms a complete cooling circulation system by setting a discharge pipe on the other side of the metal housing and opening a circulation channel at the bottom of the water cooling tank. After the cooling medium completes heat exchange inside the water cooling tank, the heat can be carried away from the outside of the pump body in time through the discharge pipe. This structural design can continuously dissipate heat from the inside of the gear pump, so that the gear pump can always maintain a relatively low temperature during long-term high-speed operation. This continuous and efficient heat dissipation method effectively avoids problems such as jamming and accelerated wear caused by excessive temperature. It not only extends the service life of the gear pump, but also enhances the safety and practicality of the equipment in the field of gear pump heat dissipation technology, reduces equipment maintenance costs and failure risks, and improves production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled metal box of this utility model;

[0020] Figure 3 This is a sectional view of the hydraulic transmission frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the hydraulic transmission component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the positioning slot structure of this utility model;

[0023] Figure 6This is a schematic diagram of the heat-conducting component structure of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Metal housing; 2. Guide pipe fitting; 3. Hydraulic transmission assembly; 4. Transmission connection seat; 5. Water cooling tank; 6. Hydraulic transmission frame; 7. Inlet pipe fitting; 8. Outlet pipe fitting; 9. Circulation channel; 10. Metal frame; 11. Heat-conducting component; 12. Transmission gear; 13. Drive shaft; 14. Hinge slot; 15. Hydraulic cavity; 16. Hinge shaft; 17. Positioning slot; 18. Arc-shaped heat-conducting cover; 19. Positioning plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: Refer to Figures 1 to 6 This utility model provides an embodiment of a high-efficiency heat dissipation device for a gear pump, comprising a metal housing 1, with guide pipes 2 penetrating through both ends of the metal housing 1, a hydraulic transmission assembly 3 disposed inside the metal housing 1, transmission connection seats 4 installed on both sides of the metal housing 1, a water-cooling tank 5 formed inside the metal housing 1, a hydraulic transmission frame 6 disposed in the middle of the metal housing 1 near the water-cooling tank 5, an inlet pipe 7 connected to the side of the metal housing 1 away from the guide pipes 2, and a discharge pipe 8 disposed on the side of the metal housing 1 away from the inlet pipe 7. The inlet pipe 7, the discharge pipe 8, and the water-cooling tank 5 are all penetratingly connected. A circulation channel 9 is also penetrating through the bottom of the water-cooling tank 5. This gear pump heat dissipation device uses water... The coordinated use of the cold tank 5, hydraulic transmission frame 6, inlet pipe 7, outlet pipe 8, and circulation channel 9 allows external cooling media (coolant, cryogenic gas) to be introduced into the interior of the metal housing 1. The cooling media introduced into the metal housing 1 can exchange heat with the temperature inside the metal frame 10 through the heat-conducting component 11, enabling direct heat dissipation of frictional heat between meshing gears in the pump and between the gears and the pump body. The hydraulic transmission frame 6 includes the metal frame 10, and heat-conducting components 11 are provided on the outer sides of both ends of the metal frame 10. By adding heat-conducting components 11 to the outer sides of both ends of the metal frame 10, the heat exchange performance and efficiency between the metal frame 10 and the cooling medium can be improved.

[0027] The hydraulic transmission assembly 3 includes two sets of transmission gears 12. A drive shaft 13 is mounted in the middle of one set of transmission gears 12, and the drive shaft 13 is structurally matched with the transmission connecting seat 4. Hinge slots 14 are respectively opened on both sides of the other set of transmission gears 12. This hydraulic transmission assembly 3 consists of transmission gears 12, drive shafts 13, and hinge slots 14. When the drive shaft 13 is driven by a motor or other transmission device, it can drive the two sets of meshing transmission gears 12 to rotate inside the metal housing 1. When the two sets of meshing transmission gears 12 rotate in a vacuum environment, they can generate negative pressure, enabling the transport and processing of liquids. A hydraulic cavity 15 is opened inside the metal frame 10, and the hydraulic cavity 15 is structurally matched with the two sets of transmission gears 12. The hydraulic cavity 15 and the two sets of transmission gears 12 have a transition fit. A hinge shaft 16 is connected to one side of the hydraulic cavity 15, and the hinge shaft 16 is structurally matched with the hinge slot 14. The hinge shaft 16 and the hinge slot 14 have a hinge fit. The two ends of the metal frame 10... Positioning slots 17 are also provided on both sides of the metal frame 10. These slots are used for the disassembly and connection between the metal frame 10 and the heat-conducting component 11. The heat-conducting component 11 includes an arc-shaped heat-conducting cover 18, with positioning plates 19 installed at both ends. These positioning plates 19 are used for the disassembly and connection between the arc-shaped heat-conducting cover 18 and the metal frame 10. The structures are matched, with the arc-shaped heat conduction cover 18 and the metal frame 10 having a transition fit, and the positioning plate 19 and the positioning slot 17 having a matching structure and a snap-fit ​​fit. Through the transition fit between the arc-shaped heat conduction cover 18 and the metal frame 10, and the snap-fit ​​fit between the positioning plate 19 and the positioning slot 17, the arc-shaped heat conduction cover 18 can be attached and fixed to the outer sides of both ends of the metal frame 10, which can improve the overall thermal conductivity of the metal frame 10.

[0028] Working Principle: The gear pump cooling device designed in this scheme mainly consists of a metal housing 1, a guide pipe 2, a hydraulic transmission assembly 3, a transmission connection seat 4, and a water cooling tank 5. The metal housing 1 is used in conjunction with the water cooling tank 5, the hydraulic transmission frame 6, the inlet pipe 7, the outlet pipe 8, and the circulation channel 9. When the two sets of transmission gears 12 rotate inside the hydraulic cavity 15, heat is generated inside the metal housing 1 due to the meshing between the two sets of transmission gears 12 and the excessive contact between the two sets of transmission gears 12 and the hydraulic cavity 15 under the action of friction. Through the inlet pipe 7 installed on one side of the metal housing 1, which is connected to the water cooling tank 5, external cooling medium (coolant, low temperature gas) can be introduced into the interior of the metal housing 1. The cooling medium introduced into the interior of the metal housing 1 can exchange heat with the temperature inside the metal frame 10 through the heat conduction component 11, which can directly dissipate the frictional heat between the meshing gears in the pump and between the gears and the pump body.

[0029] The gear pump cooling device designed in this scheme, through the discharge pipe 8 installed on one side of the metal housing 1 and the circulation channel 9 opened through the bottom of the water cooling tank 5, can simultaneously deliver cooling medium into the water cooling tank 5 and discharge the cooling medium that has completed heat exchange inside the water cooling tank 5. The cooling circulation structure can continuously dissipate the frictional heat between the internal meshing gears and between the gears and the pump body, so that the gear pump, which is running at high speed, always maintains a low temperature. This can prevent the problems of jamming and accelerated wear caused by the inability to effectively dissipate the internal temperature of the gear pump.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat dissipation device for a gear pump, comprising a metal box body (1), characterized in that: The two ends of the metal box (1) are connected to the flow guide pipe (2), the inside of the metal box (1) is provided with a hydraulic transmission assembly (3), the two sides of the metal box (1) are equipped with transmission connection seats (4), the inside of the metal box (1) is provided with a water cooling tank (5), and the middle of the metal box (1) near the water cooling tank (5) is also provided with a hydraulic transmission frame (6). The metal box (1) is connected to an inlet pipe (7) on the side away from the guide pipe (2), and an outlet pipe (8) is provided on the side of the metal box (1) away from the inlet pipe (7). The inlet pipe (7), the outlet pipe (8) and the water cooling tank (5) are all connected through each other. The bottom of the water cooling tank (5) is also provided with a circulation channel (9).

2. The high-efficiency heat dissipation device for a gear pump according to claim 1, characterized in that: The hydraulic transmission frame (6) includes a metal frame (10), and heat-conducting components (11) are provided on both outer sides of the metal frame (10).

3. The high-efficiency heat dissipation device for a gear pump according to claim 2, characterized in that: The hydraulic transmission assembly (3) includes two sets of transmission gears (12), one set of which has a drive shaft (13) installed in the middle, the drive shaft (13) being matched with the transmission connecting seat (4) in structure, and the other set of transmission gears (12) having hinge slots (14) on both sides respectively.

4. The gear pump high-efficiency heat dissipation device according to claim 3, characterized in that: The metal frame (10) has a hydraulic cavity (15) inside. The hydraulic cavity (15) is matched with the structure of two sets of transmission gears (12). The hydraulic cavity (15) and the two sets of transmission gears (12) are in transition fit. A hinge shaft (16) is connected to one side of the hydraulic cavity (15). The hinge shaft (16) is matched with the structure of the hinge groove (14). The hinge shaft (16) and the hinge groove (14) are in hinge fit. Positioning slots (17) are also provided on both sides of the two ends of the metal frame (10).

5. A high-efficiency heat dissipation device for a gear pump according to claim 4, characterized in that: The heat-conducting component (11) includes an arc-shaped heat-conducting cover (18), and positioning plates (19) are respectively installed at both ends of the arc-shaped heat-conducting cover (18).

6. A high-efficiency heat dissipation device for a gear pump according to claim 5, characterized in that: The arc-shaped heat conduction cover (18) is structurally matched with the metal frame (10), and the arc-shaped heat conduction cover (18) and the metal frame (10) are in a transition fit. The positioning plate (19) is structurally matched with the positioning slot (17), and the positioning plate (19) and the positioning slot (17) are in a snap-fit ​​fit.

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