Internal gear pump capable of dissipating heat

Abstract

The utility model relates to the technical field of internal gear pumps, in particular to an internal gear pump capable of dissipating heat. The cooling device comprises a shell, a shaft sleeve frame and a cooling mechanism, the shell and the shaft sleeve frame are both arranged on an internal gear pump body, the shaft sleeve frame is arranged in the shell, made of heat conduction materials and connected with the shell through bolts, and the shaft sleeve frame is rotationally connected with an output shaft on the internal gear pump body and used for supporting the output shaft. A sealing cavity is formed between the shaft sleeve frame and the shell, the cooling mechanism is arranged on one side of the internal gear pump body and driven by the small water pump, and the water cooling mechanism communicates with the sealing cavity. Cooling liquid in the cooling tank is conveyed to the sealing cavity between the shell and the shaft sleeve frame through the small water pump, so that the shaft sleeve frame is cooled, an output shaft on the internal gear pump body and the internal gear are indirectly cooled, and the service life of the internal gear pump body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of internal gear pumps, in particular to an internal gear pump capable of dissipating heat. Background Art

[0002] The internal gear pump adopts the principle of internal gear meshing. The pitch circles of the inner and outer gears are close to one side and separated by a crescent plate on the pump cover on the other side. The active internal gear on the main shaft drives the outer gear to rotate in the same direction. The gears separate from each other at the inlet to form a negative pressure and suck in the liquid. The gears are continuously embedded and meshed at the outlet to squeeze the liquid out. The internal gear pump plays an important role in liquid transportation in the industrial production process.

[0003] Internal gear pumps still have shortcomings when in use. For example: when the viscosity of the transported liquid is too high, the high viscosity will cause a large amount of friction when the pump rotates, causing the gear pump to heat up; the fluid temperature in the pump body is too high, exceeding the tolerance range of the pump, and because the heat conduction time is relatively long, the pump body will gradually become hot; when the gears inside the gear pump are damaged or worn, friction will occur between the internal components of the gear pump, thereby generating heat.

[0004] With regard to the above-mentioned shortcomings, there are still few heat dissipation measures for the internal gear meshing parts of the internal gear pumps at present, which leads to overheating of the gear meshing parts of the internal gear pumps, thereby affecting the service life of the internal gear pumps. Utility Model Content

[0005] In view of the problems existing in the background technology, an internal gear pump capable of dissipating heat is proposed.

[0006] The utility model proposes an internal gear pump capable of dissipating heat, comprising an internal gear pump body, wherein an outer shell and a shaft sleeve frame are arranged on the internal gear pump body, the shaft sleeve frame is arranged in the outer shell and connected to the outer shell by bolts, the shaft sleeve frame is rotatably connected to an output shaft on the internal gear pump body and is used to provide support for the output shaft, a sealed chamber is arranged between the shaft sleeve frame and the outer shell, a water cooling mechanism driven by a small water pump is arranged on one side of the internal gear pump body, and the water cooling mechanism is communicated with the sealed chamber.

[0007] Preferably, the shaft sleeve frame is made of heat-conducting material.

[0008] Preferably, a fixing frame is installed on the internal gear pump body, and the water cooling mechanism includes a cooling tank installed on the fixing frame and a small water pump installed on the fixing frame, the water inlet of the small water pump is connected with the cooling tank, a water pipe 1 is installed on the small water pump, the water pipe 1 is connected with the sealed chamber, a water pipe 2 is installed on the cooling tank, the water pipe 2 is connected with the sealed chamber, a protective cover is installed on the cooling tank, a plurality of cooling fins are installed on the cooling tank, and a cooling fan is installed on the protective cover.

[0009] Preferably, a liquid level tube is installed on the cooling tank, and the liquid level tube is made of transparent material.

[0010] Preferably, a rotating disk is provided in the sealing chamber, the rotating disk is rotatably connected to the shaft sleeve frame, a plurality of scraper blades are installed on one side of the rotating disk, the plurality of scraper blades are all in contact with the outer wall of the shaft sleeve frame, and the plurality of scraper blades are all installed with power blades.

[0011] Preferably, the connection end of the water delivery pipe 1 and the sealed chamber is arranged obliquely.

[0012] Preferably, a sewage pipe is installed on the second water delivery pipe, and a threaded plug is provided on the sewage pipe.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The coolant in the cooling tank is transported to the sealed chamber between the outer shell and the shaft sleeve frame by a small water pump, thereby cooling the shaft sleeve frame, and then indirectly cooling the output shaft and the internal gear on the internal gear pump body, thereby ensuring the service life of the internal gear pump body;

[0015] By arranging a rotating disk, a scraper blade and a power blade, the impact force of the coolant can be used to form rotation during the coolant transportation process, and then the surface of the shaft sleeve frame can be cleaned to prevent impurities in the coolant from adhering to the surface of the shaft sleeve frame, thereby ensuring the heat conduction effect of the shaft sleeve frame and then ensuring the cooling effect of the internal gear pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional structural schematic diagram of the internal gear pump body in the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the central shaft sleeve and the scraper blade of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the rotating disk, scraper blade and power blade in the utility model;

[0020] Figure 5It is a structural schematic diagram of the water cooling mechanism in the utility model.

[0021] Figure numerals: 1. internal gear pump body; 101. outer casing; 102. shaft sleeve frame; 2. fixing frame; 3. cooling tank; 4. small water pump; 5. water pipe one; 6. water pipe two; 7. protective cover; 8. cooling fins; 9. cooling fan; 10. drain pipe; 11. threaded plug; 12. liquid level tube; 13. rotating disk; 14. scraper blade; 15. power blade. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 5 As shown, the utility model provides an internal gear pump capable of dissipating heat, comprising a housing 101, a shaft sleeve frame 102 and a cooling mechanism.

[0023] like Figure 1 and Figure 2 As shown, the housing 101 and the shaft sleeve frame 102 are both arranged on the internal gear pump body 1, the shaft sleeve frame 102 is arranged in the housing 101, the shaft sleeve frame 102 is made of heat-conducting material, and is connected to the housing 101 by bolts. The shaft sleeve frame 102 is rotatably connected to the output shaft on the internal gear pump body 1 to provide support for the output shaft. A sealed chamber is arranged between the shaft sleeve frame 102 and the housing 101, and a cooling mechanism is arranged on one side of the internal gear pump body 1 and driven by a small water pump 4, and the water cooling mechanism is connected to the sealed chamber;

[0024] like Figure 2 and Figure 5 As shown, a fixing frame 2 is installed on the internal gear pump body 1, and the water cooling mechanism includes a cooling tank 3 installed on the fixing frame 2 and a small water pump 4 installed on the fixing frame 2. A water inlet pipe and a water outlet pipe are arranged on the cooling tank 3, and valves are arranged on the water inlet pipe and the water outlet pipe. A liquid level pipe 12 is installed on the cooling tank 3, and the liquid level pipe 12 is made of transparent material. The water inlet of the small water pump 4 is connected with the cooling tank 3, and the connection between the liquid level pipe 12 and the cooling tank 3 is higher than the connection between the small water pump 4 and the cooling tank 3. The coolant capacity in the cooling tank 3 can be understood through the liquid level pipe 12, so as to avoid the small water pump 4 from idling and improve the protection effect of the small water pump 4. A water delivery pipe 1 5 is installed on the small water pump 4, and the water delivery pipe 1 5 is connected with the sealed chamber. A water delivery pipe 2 6 is installed on the cooling tank 3, and the water delivery pipe 2 6 is connected with the sealed chamber. A protective cover 7 is installed on the cooling tank 3, and a plurality of heat dissipation fins 8 are installed on the cooling tank 3. A heat dissipation fan 9 is installed on the protective cover 7.

[0025] like Figure 2-Figure 4As shown, a rotating disk 13 is arranged in the sealing chamber, and the rotating disk 13 is rotatably connected to the shaft sleeve frame 102. A T-shaped ring groove is opened on one side of the shaft sleeve frame 102, and a T-shaped ring is installed on one side of the rotating disk 13, and the T-shaped ring is rotatably connected to the T-shaped ring groove. A plurality of scraper blades 14 are installed on one side of the rotating disk 13, and the plurality of scraper blades 14 are all in contact with the outer wall of the shaft sleeve frame 102, and power blades 15 are installed on the plurality of scraper blades 14. The connecting end of the water supply pipe 1 5 and the sealing chamber is arranged obliquely, and a sewage pipe 10 is installed on the water supply pipe 2 6. The bottom end of the sewage pipe 10 is set as an opening, and an internal thread is arranged in the opening. A threaded plug 11 is arranged in the opening, and the threaded plug 11 is threadedly connected to the internal thread. During installation, a sealing ring can be sleeved on the threaded plug 11, and the sealing ring can improve the connection sealing effect between the threaded plug 11 and the sewage pipe 10.

[0026] In this embodiment, when the internal gear pump body 1 is in use, the small water pump 4 is started synchronously to transport the coolant in the cooling tank 3 to the sealed chamber between the housing 101 and the shaft sleeve frame 102. The shaft sleeve frame 102 can be cooled by the coolant, thereby indirectly cooling the output shaft on the internal gear pump body 1 and the internal gear thereon, thereby ensuring the service life of the internal gear pump body 1, and the cooled coolant flows back to the cooling tank 3 through the water pipe 2 6, thereby forming a recycling of the coolant, and at the same time, the cooling fan 9 is started to blow air to cool the multiple heat dissipation fins 8, thereby indirectly cooling the coolant in the cooling tank 3, thereby ensuring the cooling effect on the internal gear pump body 1;

[0027] During the coolant delivery process, the coolant will impact the power blades 15 located in the cooling chamber when entering the sealed chamber. The power blades 15 will drive the scraper blades 14 to rotate, thereby cleaning the outer wall of the shaft sleeve frame 102 to prevent impurities in the coolant from adhering to the outer wall of the shaft sleeve frame 102, thereby ensuring the heat conduction effect of the shaft sleeve frame 102, and the cleaned impurities will flow into the water pipe 26 and sink into the drain pipe 10. The impurities in the drain pipe 10 can be discharged by simply rotating the threaded plug 11, which is convenient for cleaning.

[0028] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An internal gear pump capable of dissipating heat, comprising: An internal gear pump body (1) is provided with a housing (101) and a shaft sleeve frame (102) on the internal gear pump body (1); the shaft sleeve frame (102) is arranged inside the housing (101) and connected to the housing (101) via bolts; the shaft sleeve frame (102) is rotatably connected to an output shaft on the internal gear pump body (1) and is used to provide support for the output shaft, and is characterized in that: A sealed chamber is provided between the shaft sleeve frame (102) and the housing (101), and a water cooling mechanism driven by a small water pump (4) is provided on one side of the internal gear pump body (1), the water cooling mechanism being in communication with the sealed chamber.

2. The internal gear pump capable of dissipating heat according to claim 1, characterized in that: The shaft sleeve frame (102) is made of heat-conducting material.

3. The internal gear pump capable of dissipating heat according to claim 1, characterized in that: A fixing frame (2) is mounted on an internal gear pump body (1); a water cooling mechanism comprises a cooling tank (3) mounted on the fixing frame (2) and a small water pump (4) mounted on the fixing frame (2); a water inlet of the small water pump (4) is connected to the cooling tank (3); a water delivery pipe (5) is mounted on the small water pump (4); the water delivery pipe (5) is connected to a sealed chamber; a water delivery pipe (6) is mounted on the cooling tank (3); the water delivery pipe (6) is connected to the sealed chamber; a protective cover (7) is mounted on the cooling tank (3); a plurality of heat dissipation fins (8) are mounted on the cooling tank (3); and a heat dissipation fan (9) is mounted on the protective cover (7).

4. The internal gear pump capable of dissipating heat according to claim 1, characterized in that: A liquid level tube (12) is installed on the cooling tank (3), and the liquid level tube (12) is made of a transparent material.

5. The internal gear pump capable of dissipating heat according to claim 1, characterized in that: A rotating disk (13) is arranged in the sealed chamber, the rotating disk (13) is rotatably connected to the shaft sleeve frame (102), a plurality of scraper blades (14) are installed on one side of the rotating disk (13), the plurality of scraper blades (14) are all in contact with the outer wall of the shaft sleeve frame (102), and power blades (15) are installed on the plurality of scraper blades (14).

6. The internal gear pump capable of dissipating heat according to claim 3, characterized in that: The connection end of the water delivery pipe 1 (5) and the sealed chamber is arranged obliquely.

7. The internal gear pump capable of dissipating heat according to claim 3, characterized in that: A sewage pipe (10) is installed on the second water delivery pipe (6), and a threaded plug (11) is provided on the sewage pipe (10).

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