Self-lubricating wear-resistant micro gear pump

Abstract

The utility model discloses a kind of self-lubricating wear-resistant micro gear pumps, it includes fixed bottom plate, the upper surface of fixed bottom plate is fixedly connected with fixed seat, the upper end of fixed seat is fixedly connected with arc pump shell, the inside of arc pump shell is provided with upper gear and lower gear, upper gear is located directly above lower gear, upper gear is engaged with lower gear;First bidirectional motor and second bidirectional motor, first bidirectional motor and second bidirectional motor are fixedly connected on the upper surface of fixed bottom plate, the output end of first bidirectional motor is fixedly connected with the side surface of upper gear by first drive shaft, the output end of second bidirectional motor is fixedly connected with the side surface of lower gear by second drive shaft. By bidirectional motor, drive shaft, arc pump shell, upper gear and lower gear form bidirectional pumping mechanism, the conveying direction of gear pump can be quickly changed to carry out reverse conveying, so that gear pump can flexibly cope with different use scenarios, improve the functionality and scene adaptability of gear pump.

Description

Technical Field

[0001] This utility model relates to the field of gear pump technology, and in particular to a self-lubricating and wear-resistant micro gear pump. Background Technology

[0002] Existing gear pumps are prone to wear after prolonged use, which can lead to malfunctions and damage. In addition, gear pumps can only deliver in one direction. When directional adjustment is required, the gear pump must be reinstalled, which is inconvenient and makes the gear pumps unsuitable for various scenarios.

[0003] A Chinese patent discloses a "gear pump" (application number CN202321249757.5). By incorporating a quick-connect female connector, it allows for rapid insertion and connection with the male connector of external devices, completing both physical and electrical connections. This facilitates electrical connection between the gear pump and the control system of a smart beverage mixing system, simplifies electrical circuit wiring, avoids incorrect wiring, and improves the assembly efficiency of the smart beverage mixing system. However, this gear pump is prone to wear-induced malfunctions and damage, cannot switch conveying directions, lacks comprehensive functionality, and has insufficient adaptability to various scenarios. Utility Model Content

[0004] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, and to provide a self-lubricating and wear-resistant micro gear pump. This pump uses a bidirectional pumping mechanism composed of a bidirectional motor, drive shaft, arc-shaped pump casing, upper gear, and lower gear. This mechanism allows for rapid reversal of the pump's conveying direction, enabling the pump to flexibly adapt to different application scenarios and improving its functionality and adaptability. The ends of the teeth on the upper and lower gears are designed with arc-shaped lubrication surfaces, which fit against the inner surface of the arc-shaped pump casing. When the upper and lower gears rotate, they do not wear on the pump casing and provide a certain degree of lubrication protection, thus improving the pump's durability.

[0005] This utility model also provides a self-lubricating wear-resistant micro gear pump, comprising: a fixed base plate, a fixed seat fixedly connected to the upper surface of the fixed base plate, an arc-shaped pump housing fixedly connected to the upper end of the fixed seat, an upper gear and a lower gear being arranged inside the arc-shaped pump housing, the upper gear being located directly above the lower gear and meshing with the lower gear; a first bidirectional motor and a second bidirectional motor, both of which are fixedly connected to the upper surface of the fixed base plate, the output end of the first bidirectional motor being fixedly connected to the side surface of the upper gear through a first drive shaft, and the output end of the second bidirectional motor being fixedly connected to the side surface of the lower gear through a second drive shaft.

[0006] According to the present invention, a self-lubricating and wear-resistant micro gear pump is provided with a fixed base plate having four threaded mounting holes located at the four corners of the fixed base plate. This facilitates the installation and fixation of the gear pump.

[0007] According to the present invention, a self-lubricating and wear-resistant micro gear pump is provided with side sealing plates at the side ends of the arc-shaped pump casing. The side sealing plates are symmetrically distributed at the left and right ends of the arc-shaped pump casing, which facilitates the quick assembly and disassembly of the gear pump. A sealing ring is fixedly connected to the inner surface of the side sealing plate to improve the sealing performance at the connection.

[0008] According to the present invention, a self-lubricating and wear-resistant micro gear pump has fixing blocks fixedly connected to both the front and rear surfaces of the arc-shaped pump housing, and annular sealing grooves are provided at both ends of the arc-shaped pump housing to improve the sealing performance at the connection. The annular sealing grooves engage with sealing rings, which is beneficial for stable sealing at the connection.

[0009] According to the self-lubricating wear-resistant micro gear pump of this utility model, a fixing plate is fixedly connected to the side end of the side sealing plate. The fixing plate is fixedly connected to the fixing block by fixing bolts, and the fixing bolts are symmetrically distributed at the upper and lower ends of the fixing plate. This facilitates the stable installation of the side sealing plate.

[0010] According to the present invention, a self-lubricating and wear-resistant micro gear pump has an outlet pipe fixedly connected to the front end of the arc-shaped pump casing, the outlet pipe extending into the interior of the arc-shaped pump casing, and an inlet pipe fixedly connected to the rear end of the arc-shaped pump casing, the inlet pipe extending into the interior of the arc-shaped pump casing. This facilitates water inlet and outlet.

[0011] According to the self-lubricating wear-resistant micro gear pump of this utility model, the outlet pipe is sleeved with a fixing block, and the inlet pipe is sleeved with a fixing block. This facilitates the stable installation of the outlet and inlet pipes.

[0012] According to the present invention, a self-lubricating wear-resistant micro gear pump is provided, wherein both the upper and lower gears are provided with tooth blocks, the ends of which are arc-shaped lubrication surfaces, and the ends of which are in contact with the inner surface of the arc-shaped pump housing. This improves the internal wear resistance and facilitates internal lubrication.

[0013] According to the self-lubricating wear-resistant micro gear pump of this utility model, both the first bidirectional motor and the second bidirectional motor abut against the outer surface of the side sealing plate, and both the first drive shaft and the second drive shaft are sleeved on the side sealing plate. This makes the structure compact and stable. Beneficial effects

[0014] 1. Compared with the existing technology, this self-lubricating wear-resistant micro gear pump, through a bidirectional motor, drive shaft, arc-shaped pump casing, upper gear and lower gear forming a bidirectional pumping mechanism, can quickly change the conveying direction of the gear pump to carry out reverse conveying, so that the gear pump can flexibly cope with different application scenarios, and improve the functionality and scenario adaptability of the gear pump. 2. Compared with the prior art, this self-lubricating wear-resistant micro gear pump has arc-shaped lubrication surfaces at the ends of the tooth blocks on the upper and lower gears. The arc-shaped lubrication surfaces at the ends of the tooth blocks fit against the inner surface of the arc-shaped pump casing. When the upper and lower gears rotate, they will not wear the pump casing and have a certain lubrication protection effect, thus improving the durability of the gear pump. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of a self-lubricating wear-resistant micro gear pump according to the present invention; Figure 2 This is a top view schematic diagram of the self-lubricating wear-resistant micro gear pump of this utility model; Figure 3 This is a longitudinal three-dimensional cross-sectional structural diagram of a self-lubricating wear-resistant micro gear pump according to the present invention; Figure 4 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a self-lubricating wear-resistant micro gear pump according to the present invention.

[0016] Legend: 1. Fixed base plate; 2. Second bidirectional motor; 3. Inlet pipe; 4. Fixing block; 5. Side sealing plate; 6. Arc-shaped pump casing; 7. Outlet pipe; 8. Fixing plate; 9. Fixing bolt; 10. Threaded mounting hole; 11. First bidirectional motor; 12. Fixing base; 13. Upper gear; 14. Lower gear; 15. Gear block; 16. Second drive shaft; 17. First drive shaft; 18. Annular sealing groove; 19. Sealing ring. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1 , Figure 2 and Figure 3This utility model discloses a self-lubricating, wear-resistant micro gear pump, comprising a fixed base plate 1 with four threaded mounting holes 10 located at the four corners of the fixed base plate 1. A fixed seat 12 is fixedly connected to the upper surface of the fixed base plate 1, and an arc-shaped pump housing 6 is fixedly connected to the upper end of the fixed seat 12. An upper gear 13 and a lower gear 14 are arranged inside the arc-shaped pump housing 6, with the upper gear 13 located directly above the lower gear 14 and meshing with it. Both the upper gear 13 and the lower gear 14 are provided with tooth blocks 15, the ends of which are arc-shaped lubrication surfaces and fit against the inner surface of the arc-shaped pump housing 6. A side sealing plate 5 is provided on the side of the arc-shaped pump housing 6. The sealing plates 5 are symmetrically distributed on the left and right ends of the arc-shaped pump casing 6. The inner surface of the side sealing plates 5 is fixedly connected with sealing rings 19. The front and rear surfaces of the arc-shaped pump casing 6 are fixedly connected with fixing blocks 4. The left and right ends of the arc-shaped pump casing 6 are provided with annular sealing grooves 18, which are engaged with sealing rings 19. The side ends of the side sealing plates 5 are fixedly connected with fixing plates 8. The fixing plates 8 are fixedly connected with fixing blocks 4 by fixing bolts 9. The fixing bolts 9 are symmetrically distributed on the upper and lower ends of the fixing plates 8. The front end of the arc-shaped pump casing 6 is fixedly connected with a water outlet pipe 7, which penetrates into the interior of the arc-shaped pump casing 6. The rear end of the arc-shaped pump casing 6 is fixedly connected with a water inlet pipe 3, which penetrates into the interior of the arc-shaped pump casing 6. The water outlet pipe 7 is sleeved with the fixing block 4, and the water inlet pipe 3 is sleeved with the fixing block 4. Specifically, during the operation of the gear pump, the upper gear 13 and the lower gear 14 rotate inside the arc-shaped pump housing 6. The ends of the tooth blocks 15 of the upper gear 13 and the lower gear 14 are designed with arc-shaped lubrication surfaces. During use, lubricating oil can be added to the inside of the gear pump. When the upper gear 13 and the lower gear 14 rotate, the upper gear 13, the lower gear 14 and the arc-shaped pump housing 6 will all be lubricated. In addition, the arc-shaped pump housing 6 is made of self-lubricating engineering plastic, which can lubricate itself when the gear pump is running, preventing wear of the gear pump and making the gear pump more durable. The upper gear 13 and the lower gear 14 are both made of stainless steel to ensure internal wear resistance. Reference Figure 1 , Figure 2 and Figure 4 The first bidirectional motor 11 and the second bidirectional motor 2 are both fixedly connected to the upper surface of the fixed base plate 1. The output end of the first bidirectional motor 11 is fixedly connected to the side surface of the upper gear 13 through the first drive shaft 17. The output end of the second bidirectional motor 2 is fixedly connected to the side surface of the lower gear 14 through the second drive shaft 16. The first bidirectional motor 11 and the second bidirectional motor 2 abut against the outer surface of the side sealing plate 5. The first drive shaft 17 and the second drive shaft 16 are both sleeved with the side sealing plate 5. Specifically, during the operation of the gear pump, when the first bidirectional motor 11 drives the upper gear 13 to rotate in the forward direction and the second bidirectional motor 2 drives the lower gear 14 to rotate in the reverse direction, water is drawn in by the gear pump through the inlet pipe 3 and output from the outlet pipe 7; when the first bidirectional motor 11 drives the upper gear 13 to rotate in the reverse direction and the second bidirectional motor 2 drives the lower gear 14 to rotate in the forward direction, water is drawn in by the gear pump through the outlet pipe 7 in the reverse direction and output from the inlet pipe 3 in the reverse direction, allowing for rapid switching of the conveying direction.

[0019] Working principle: Water is transported using a self-lubricating, wear-resistant micro gear pump. When the gear pump is transporting water in the forward direction, the first bidirectional motor 11 drives the upper gear 13 to rotate in the forward direction, and the second bidirectional motor 2 drives the lower gear 14 to rotate in the reverse direction. Water is drawn in by the gear pump through the inlet pipe 3 and output from the outlet pipe 7. When the gear pump is transporting water in the reverse direction, the first bidirectional motor 11 drives the upper gear 13 to rotate in the reverse direction, and the second bidirectional motor 2 drives the lower gear 14 to rotate in the forward direction. Water is drawn in by the gear pump in the reverse direction through the outlet pipe 7 and output in the reverse direction from the inlet pipe 3.

[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A self-lubricating, wear-resistant miniature gear pump, characterized in that, include: A fixed base plate (1) is fixedly connected to a fixed seat (12) on its upper surface. An arc-shaped pump housing (6) is fixedly connected to the upper end of the fixed seat (12). An upper gear (13) and a lower gear (14) are provided inside the arc-shaped pump housing (6). The upper gear (13) is located directly above the lower gear (14), and the upper gear (13) meshes with the lower gear (14). The first bidirectional motor (11) and the second bidirectional motor (2) are both fixedly connected to the upper surface of the fixed base plate (1). The output end of the first bidirectional motor (11) is fixedly connected to the side surface of the upper gear (13) through the first drive shaft (17), and the output end of the second bidirectional motor (2) is fixedly connected to the side surface of the lower gear (14) through the second drive shaft (16).

2. The self-lubricating wear-resistant micro gear pump according to claim 1, characterized in that, The fixed base plate (1) is provided with threaded mounting holes (10), and the number of threaded mounting holes (10) is four. The threaded mounting holes (10) are located at the four corners of the fixed base plate (1).

3. The self-lubricating wear-resistant micro gear pump according to claim 1, characterized in that, The side end of the arc-shaped pump casing (6) is provided with a side sealing plate (5). The side sealing plates (5) are symmetrically distributed on the left and right ends of the arc-shaped pump casing (6). A sealing ring (19) is fixedly connected to the inner surface of the side sealing plate (5).

4. The self-lubricating wear-resistant micro gear pump according to claim 1, characterized in that, The front and rear surfaces of the arc-shaped pump housing (6) are fixedly connected with fixing blocks (4), and the left and right ends of the arc-shaped pump housing (6) are provided with annular sealing grooves (18), which are engaged with sealing rings (19).

5. A self-lubricating, wear-resistant micro gear pump according to claim 3, characterized in that, The side end of the side sealing plate (5) is fixedly connected to a fixing plate (8), and the fixing plate (8) is fixedly connected to the fixing block (4) by fixing bolts (9). The fixing bolts (9) are symmetrically distributed at the upper and lower ends of the fixing plate (8).

6. A self-lubricating, wear-resistant micro gear pump according to claim 1, characterized in that, The front end of the arc-shaped pump casing (6) is fixedly connected to a water outlet pipe (7), which penetrates into the interior of the arc-shaped pump casing (6). The rear end of the arc-shaped pump casing (6) is fixedly connected to a water inlet pipe (3), which penetrates into the interior of the arc-shaped pump casing (6).

7. A self-lubricating, wear-resistant micro gear pump according to claim 6, characterized in that, The water outlet pipe (7) is sleeved with the fixing block (4), and the water inlet pipe (3) is sleeved with the fixing block (4).

8. The self-lubricating wear-resistant micro gear pump according to claim 1, characterized in that, Both the upper gear (13) and the lower gear (14) are provided with tooth blocks (15), the ends of the tooth blocks (15) are arc-shaped lubrication surfaces, and the ends of the tooth blocks (15) are in contact with the inner surface of the arc-shaped pump housing (6).

9. A self-lubricating, wear-resistant micro gear pump according to claim 1, characterized in that, The first bidirectional motor (11) and the second bidirectional motor (2) both abut against the outer surface of the side sealing plate (5), and the first drive shaft (17) and the second drive shaft (16) are both sleeved with the side sealing plate (5).

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