Internal gear pump convenient to clean

Abstract

The utility model relates to the technical field of internal gear pumps, in particular to an internal gear pump convenient to clean, which comprises a motor, a main shaft is movably mounted on the side surface of the motor, the main shaft is fixedly connected with an output shaft of the motor through a coupling, and the main shaft is movably mounted on a pump body; a supporting mechanism is fixedly mounted on the lower side of the pump body; a connecting plate is further installed on the portion, between the pump body and the motor, of the main shaft, and a bolt is installed on the connecting plate. The pump body is fixedly connected with a discharge port and a suction port; a dismounting mechanism is mounted on the pump body; during disassembly, the spring telescopic rod is stretched outwards, and the sealing cover 11 pops up from the pump body under the elastic action of the spring at the moment, so that the sealing cover can be disassembled and does not need to be manually taken, and the disassembly is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of internal gear pumps, in particular to an internal gear pump which is convenient to clean. Background Art

[0002] An internal gear pump is a hydraulic power element whose working principle is based on the internal meshing motion of gears. In this pump, the pitch circles of the inner and outer gears are close to each other on 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. At the inlet, the gears separate from each other to form a negative pressure, thereby sucking in the liquid; at the outlet, the gears are constantly engaged and meshed to squeeze the liquid out; the characteristics of internal gear pumps include simple structure, low noise, long life, and low sensitivity to hydraulic oil contamination. These pumps are widely used in the hydraulic systems of various machines such as plastic machinery, mining machinery, metallurgical machinery, petrochemical machinery, precision machine tools, medical equipment, etc., such as injection molding machines, rubber plate vulcanizers, die casting machines, punching and shearing machines, brick presses, etc.

[0003] A Chinese patent discloses an internal gear pump that is easy to clean (authorization announcement number CN 217813910 U). The gear pump that is easy to disassemble rotates a circular plate counterclockwise, and the circular plate drives the rotating rod and the second bevel gear to rotate. The second bevel gear drives multiple first bevel gears and multiple screws to rotate. The rotation of multiple screws causes multiple sliding plates to move to the outside of the round seat, so that the clamping seat moves to the outside of the flange and the cover, and then the round seat and the cover are pulled to the right side, and the positioning rod is pulled out of the mounting hole of the flange, so that the cover is removed, which is convenient for disassembly of the gear pump and improves the efficiency of disassembly; however, the device is too cumbersome and not simple enough during the disassembly process.

[0004] Therefore, those skilled in the art provide an internal gear pump that is easy to clean to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an internal gear pump that is easy to clean, comprising a motor, a main shaft is movably mounted on the side of the motor, the main shaft is fixedly connected to the output shaft of the motor through a coupling, and the main shaft is movably mounted on the pump body;

[0006] A supporting mechanism is fixedly installed on the lower side of the pump body;

[0007] A connecting plate is also installed on the main shaft between the pump body and the motor, and bolts are installed on the connecting plate;

[0008] The pump body is fixedly connected with a discharge port and a suction port;

[0009] A disassembly mechanism is installed on the pump body.

[0010] Preferably: the support mechanism is installed at the bottom of the motor and the pump body, and the support mechanism includes support rods, and the support rods are two symmetrical support rods; bases are installed at the bottom of the two support rods.

[0011] Preferably: a disassembly mechanism is installed on the left side of the pump body, and the disassembly mechanism includes a mounting sleeve, the mounting sleeve is fixedly mounted on the pump body, and the left end of the mounting sleeve slightly exceeds the left end of the pump body; the mounting sleeve is provided with three movable openings evenly distributed around the mounting sleeve, and movable plates are installed on the three movable openings, and movable grooves are opened on the three movable plates, and spring telescopic rods are installed in the three movable grooves.

[0012] Preferably: a limit block is installed on one side of the spring telescopic rod, and the limit block can move with the movement of the spring telescopic rod; a sealing cover is installed on the left outer wall of the pump body, and three limit grooves are provided on the sealing cover, and the positions of the limit grooves correspond to the limit blocks, and the limit blocks can be embedded in the limit grooves, thereby enhancing the sealing performance of the sealing cover.

[0013] Preferably: a sealing cylinder is installed on the right side wall of the sealing cover, and three moving openings 2 are opened on the sealing cylinder. The positions of the three moving openings 2 correspond to the positions of the spring telescopic rod, and the bottom of the spring telescopic rod can be embedded in the moving opening 2.

[0014] Preferably: a sealing gasket is installed inside the sealing cylinder; a spring is installed on the right side wall of the sealing cylinder, and the right end of the spring is movably connected to the left end of the pump body.

[0015] Technical effects and advantages of the utility model:

[0016] 1. The utility model provides an internal gear pump which is convenient to clean. When installing, the spring telescopic rod is stretched outward, and then the sealing cover box is pushed into the pump body, and the spring telescopic rod is loosened. Under the action of elasticity, the spring telescopic rod moves inward, and the bottom of the spring telescopic rod is installed in the second moving port. The spring telescopic rod drives the limit block to be installed in the limit groove, and the installation of the sealing cover is completed. The installation is simple, and there is no need to worry about losing the installation parts.

[0017] 2. In the utility model, when disassembling, the spring telescopic rod is stretched outward, and the sealing cover will pop out of the pump body under the elastic action of the spring, and the sealing cover can be disassembled without manual removal, which is convenient for disassembly.

[0018] 3. The utility model can be disassembled by simply pulling the spring telescopic rod outwards, which saves time and effort and makes it convenient to clean the inside of the gear pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1The embodiment of the present application provides a convenient and clean internal gear pump. Figure 1 ;

[0020] Figure 2 This is a reverse isometric view of an internal gear pump that is convenient to clean provided in an embodiment of the present application;

[0021] Figure 3 This is a convenient and clean internal gear pump provided in the embodiment of the present application. Figure 2 Schematic diagram of the internal enlarged structure at A in FIG.

[0022] Figure 4 This is an exploded view of an internal gear pump that is easy to clean provided in an embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of a locking structure in an internal gear pump that is easy to clean provided in an embodiment of the present application.

[0024] In the figure: 1. Motor; 2. Coupling; 3. Support rod; 4. Base; 5. Main shaft; 6. Connecting plate; 7. Discharge port; 8. Bolt; 9. Suction port; 10. Pump body; 11. Sealing cover; 12. Mounting sleeve; 13. Moving plate; 14. Spring telescopic rod; 15. Limit block; 17. Limit groove; 18. Sealing pad; 19. Sealing cylinder; 20. Spring; 22. Moving port 1; 23. Moving port 2. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0026] Example

[0027] See also Figure 1 to Figure 5In this embodiment, an internal gear pump that is easy to clean is provided, including a motor 1, a main shaft 5 is movably installed on the side of the motor 1, the main shaft 5 is fixedly connected to the output shaft of the motor 1 through a coupling 2, the main shaft 5 is movably installed on the pump body 10, and a supporting mechanism is fixedly installed on the lower side of the pump body 10, the supporting mechanism is used to support the pump body 10 and the motor 1, making it more convenient to work; a connecting plate 6 is also installed on the main shaft 5 between the pump body 10 and the motor 1, and a bolt 8 is installed on the connecting plate 6, and the pump body 10 and the motor 1 can be fixed together by tightening the bolt 8; a suction port 9 and a discharge port 7 are fixedly connected to the pump body 10, and a disassembly mechanism is installed on the pump body 10, and the disassembly mechanism can facilitate the removal of the sealing cover 11 from the pump body 10, so as to facilitate the cleaning of the inside of the pump body 10;

[0028] The support mechanism is installed at the bottom of the motor 1 and the pump body 10, and the support mechanism includes a support rod 3, and the support rod 3 has two left-right symmetrical ones; the bottom of the two support rods 3 is installed with a base 4, and the support mechanism can support the entire gear pump, increase its stability, and facilitate the operation of the gear pump;

[0029] A disassembly mechanism is installed on the left side of the pump body 10, and the disassembly mechanism includes a mounting sleeve 12, the mounting sleeve 12 is fixedly mounted on the pump body 10, and the left end of the mounting sleeve 12 slightly exceeds the left end of the pump body 10; the mounting sleeve 12 is provided with three moving openings 22 evenly distributed around the mounting sleeve 12, and the three moving openings 22 are installed with moving plates 13, and the three moving plates 13 are provided with moving grooves, and spring telescopic rods 14 are installed in the three moving grooves, and the spring telescopic rods 14 can move up and down in the moving openings 22;

[0030] A limiting block 15 is installed on one side of the spring telescopic rod 14, and the limiting block 15 can move with the movement of the spring telescopic rod 14; a sealing cover 11 is installed on the left outer wall of the pump body 10, and three limiting grooves 17 are provided on the sealing cover 11, and the positions of the limiting grooves 17 correspond to the limiting blocks 15, and the limiting blocks 15 can be embedded in the limiting grooves 17, so as to enhance the sealing performance of the sealing cover 11; during installation, the spring telescopic rod 14 is stretched outward, and then the sealing cover 11 is pushed into the pump body 10, and the spring telescopic rod 14 is loosened. Under the action of elasticity, the spring telescopic rod 14 moves inward, driving the limiting block 15 to be installed in the limiting groove 17, and the installation of the sealing cover 11 is completed. When disassembling, it is only necessary to stretch the spring telescopic rod 14 outward to complete the disassembly, thereby facilitating the cleaning of the back of the gear pump;

[0031] A sealing cylinder 19 is installed on the right side wall of the sealing cover 11, and three movable openings 23 are opened on the sealing cylinder 19. The positions of the three movable openings 23 correspond to the positions of the spring telescopic rod 14. The bottom of the spring telescopic rod 14 can be embedded in the movable opening 23. During installation, the spring telescopic rod 14 is stretched outward, and then the sealing cover 11 is pushed into the pump body 10, and the spring telescopic rod 14 is loosened. Under the action of elasticity, the spring telescopic rod 14 moves inward. At this time, the bottom of the spring telescopic rod 14 is installed in the movable opening 23, so that the installation between the sealing cover 11 and the pump body 10 is tighter, the sealing performance of the sealing cover 11 is enhanced, and it is also more convenient to clean the inside;

[0032] A sealing gasket 18 is installed inside the sealing cylinder 19, and the sealing gasket 18 can seal one end of the pump body 10 to prevent leakage; a spring 20 is installed on the right side wall of the sealing cylinder 19, and the right end of the spring 20 is movably connected to the left end of the pump body 10; when disassembling, the spring telescopic rod 14 is stretched outward, and the sealing cover 11 will pop out of the pump body 10 under the elastic action of the spring 20, and the sealing cover 11 can be disassembled without manual removal, which is convenient for disassembly.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. An internal gear pump that is easy to clean, comprising a motor (1), characterized in that: A main shaft (5) is movably mounted on the side of the motor (1), the main shaft (5) is fixedly connected to the output shaft of the motor (1) via a coupling (2), and the main shaft (5) is movably mounted on the pump body (10); A support mechanism is fixedly mounted on the lower side of the pump body (10); the support mechanism is mounted on the bottom of the motor (1) and the pump body (10), and the support mechanism comprises a support rod (3), wherein the support rod (3) has two left-right symmetrical support rods; a base (4) is mounted on the bottom of the two support rods (3); A connecting plate (6) is also installed on the main shaft (5) between the pump body (10) and the motor (1), and a bolt (8) is installed on the connecting plate (6); The pump body (10) is fixedly connected with a discharge port (7) and a suction port (9); A disassembly mechanism is installed on the pump body (10); A disassembly mechanism is installed on the left side of the pump body, and the disassembly mechanism includes a mounting sleeve (12), the mounting sleeve (12) is fixedly mounted on the pump body (10), and the left end of the mounting sleeve (12) slightly exceeds the left end of the pump body (10); the mounting sleeve (12) is provided with three moving openings (22) evenly distributed around the mounting sleeve (12), and moving plates (13) are installed on the three moving openings (22), and the three moving plates (13) are all provided with moving grooves, and spring telescopic rods (14) are installed in the three moving grooves.

2. The convenient-to-clean internal gear pump according to claim 1, characterized in that: A limiting block (15) is installed on one side of the spring telescopic rod (14); a sealing cover (11) is installed on the left outer wall of the pump body (10); three limiting grooves (17) are provided on the sealing cover (11); the positions of the limiting grooves (17) correspond to the limiting blocks (15); the limiting blocks (15) are embedded in the limiting grooves (17), thereby enhancing the sealing performance of the sealing cover.

3. The convenient-to-clean internal gear pump according to claim 2, characterized in that: A sealing cylinder (19) is installed on the right side wall of the sealing cover (11), and three movable openings (23) are opened on the sealing cylinder (19). The positions of the three movable openings (23) correspond to the positions of the spring telescopic rod (14), and the bottom of the spring telescopic rod (14) is embedded in the movable openings (23).

4. The convenient-to-clean internal gear pump according to claim 3, characterized in that: A sealing gasket (18) is installed inside the sealing cylinder (19); a spring (20) is installed on the right side wall of the sealing cylinder (19), and the right end of the spring (20) is movably connected to the left end of the pump body (10).

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