Air-oil pump

Abstract

The utility model provides an air oil pump belongs to oil pump technical field. It solved the problem that the air oil pump of prior art is not high in integration. The utility model discloses oil pump pump body, oil distribution disc, oil pump rotor, oil pump pump shaft, gravity pressure block, pump body end cover and gland, and the oil pump pump body one side is provided with oil storage room and pressure block cavity, forms in the oil storage room and has the inner connecting convex body, and the oil storage room outside is provided with oil storage sealing plate and is sealedly connected with the inner connecting convex body and is pasted together, and the gravity pressure block sets up in the pressure block cavity. The utility model has the advantages of higher integration.

Description

Technical Field

[0001] This utility model belongs to the field of oil pump technology and relates to an air oil pump. Background Technology

[0002] An air-fuel pump is a high-efficiency fuel pump driven by compressed air. It requires no electricity, is compatible with various fuels such as diesel and engine oil, and can quickly complete refueling and transfer operations. It is widely used in automotive repair, machinery maintenance, industrial production lines and other scenarios.

[0003] Chinese patent publication number CN202082106U discloses an oil pump for an air compressor, including a drive shaft, an oil pump base, a pump cover, a flat gasket, a spring gasket, a pump body, a rotor, a sealing ring, a positioning pin, a connecting seat, an oil inlet hole, an oil outlet hole, and a paper gasket. An eccentric pump core is sleeved on the rotor, and a working chamber is formed between the eccentric pump core and the pump body. When the rotor drives the eccentric pump core to rotate, the working chamber is intermittently connected to the inlet hole and the oil outlet hole.

[0004] The patent provides an oil pump for an air compressor, which has few internal components and requires external accessories for connection, resulting in low integration and large space occupation. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the prior art by providing an air oil pump.

[0006] The objective of this utility model can be achieved through the following technical solution: An air oil pump includes an oil pump body, an oil distribution plate, an oil pump rotor, an oil pump shaft, a gravity block, a pump body end cover, and a pressure cover. An oil storage chamber and a pressure block cavity are provided on one side of the oil pump body. An inner connecting protrusion is formed in the oil storage chamber. An oil storage sealing plate is provided on the outer side of the oil storage chamber, and the oil storage sealing plate is fitted and sealed to the inner connecting protrusion. The gravity block is disposed in the pressure block cavity. An upper connecting hole and a middle connecting hole are formed in the pump body. The pressure cover is fitted to one side of the pump body and fixedly connected to the pump body through the upper connecting hole and the middle connecting hole. A bearing housing is formed at the center. An oil pump bearing is fitted outside the oil pump shaft and passes through the bearing housing. A connecting plane is formed on the other side of the oil pump body. An oil supply switch groove is opened on the inner side of the connecting plane. An oil supply channel is opened on the inner wall of the oil storage chamber and passes through the oil supply switch groove. Several bolt connection holes are opened on the outer periphery of the connecting plane. The oil distribution plate is fitted with the connecting plane and has several oil distribution connection holes. The pump body end cover is fitted with the outer side of the oil distribution plate. Long fastening bolts are inserted in the pump body end cover, oil distribution connection holes and bolt connection holes. The oil pump rotor is installed inside the oil distribution plate.

[0007] In the aforementioned air oil pump, a keyway is provided at the center of the pump rotor, and several rotor blades are connected to the outer periphery of the pump rotor.

[0008] In the aforementioned air oil pump, a connecting key is fixedly connected to one end of the pump shaft. The connecting key extends into the keyway and connects with the keyway to connect the pump shaft to the pump rotor.

[0009] In the aforementioned air oil pump, a vent hole is provided on the inner wall of the pressure block cavity, and a vent switch groove is provided on the pump body on one side of the connecting plane, with the vent hole located inside the vent switch groove.

[0010] In the aforementioned air oil pump, a plurality of mounting bases are formed on the outer periphery of the pump body, and oil passages are provided inside the mounting bases.

[0011] Compared with the prior art, the air oil pump provided by this utility model has the following beneficial effects: 1. An oil storage chamber is directly opened on one side of the pump body, and an inner connecting protrusion is formed in the oil storage chamber. The oil storage sealing plate and the inner connecting protrusion are fitted and sealed to achieve the integration of the oil storage chamber and sealing structure with the pump body. There is no need to design an additional independent oil storage tank and connecting pipeline, avoiding the risk of pipeline leakage and assembly errors; 2. The pump body is opened with a pressure block chamber and a vent hole. The gravity pressure block is installed inside the pressure block chamber, and the vent hole is directly integrated into the vent switch groove, reducing the number of parts and assembly steps; 3. The oil delivery channel of the oil storage chamber is directly opened on the inner wall of the pump body and passes through the oil delivery switch groove of the pump body connection plane, realizing the integration of the passage, eliminating the need for external pipeline connection, and reducing the resistance and leakage points of oil flow. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the oil pump body structure; Figure 4 This is a schematic diagram of the structure on the other side of the oil pump body.

[0013] In the diagram: 1. Oil pump body; 11. Oil reservoir; 111. Inner connecting protrusion; 112. Oil delivery channel; 12. Pressure block cavity; 121. Vent hole; 13. Upper connecting hole; 14. Middle connecting hole; 15. Bearing seat; 16. Connecting plane; 161. Oil delivery switch groove; 162. Bolt connection hole; 163. Vent switch groove; 17. Mounting base; 171. Oil passage; 2. Oil distribution plate; 21. Oil distribution connection hole; 3. Oil pump rotor; 31. Keyway; 32. Rotor blades; 4. Oil pump shaft; 41. Oil pump bearing; 42. Connecting key; 5. Gravity pressure block; 6. Pump body end cover; 7. Pressure cover; 8. Oil reservoir sealing plate; 9. Long fastening bolt. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figures 1 to 4 As shown, this embodiment includes an oil pump body 1, an oil distribution plate 2, an oil pump rotor 3, an oil pump shaft 4, a gravity block 5, a pump body end cover 6, and a pressure cover 7. The oil pump body 1 is the core carrier of this embodiment. An oil storage chamber 11 and a pressure block cavity 12 are provided on one side of the oil pump body 1. An inner connecting protrusion 111 is formed inside the oil storage chamber 11, and an oil storage sealing plate 8 is provided on the outside of the oil storage chamber 11. The oil storage sealing plate 8 and the inner connecting protrusion 111 are tightly attached and sealed by a sealing element to ensure the sealing of the oil storage chamber 11 to prevent oil leakage. A gravity block 5 is adapted to be installed in the pressure block cavity 12 to realize the internal pressure regulation function of this embodiment through gravity.

[0016] like Figures 1 to 4 As shown, the oil pump body 1 also has an upper connecting hole 13 and a middle connecting hole 14. The pressure cap 7 fits against one side of the oil pump body 1 and is fixedly connected to the oil pump body 1 by fasteners passing through the upper connecting hole 13 and the middle connecting hole 14, thereby encapsulating one side of the structure of the oil pump body 1. A bearing seat 15 is integrally formed at the center of the oil pump body 1. An oil pump bearing 41 is sleeved on the outside of the oil pump shaft 4, and the oil pump shaft 4 passes through the bearing seat 15. The bearing seat 15 and the oil pump bearing 41 cooperate to achieve stable support for the oil pump shaft 4 and ensure its rotational accuracy.

[0017] like Figure 3 and Figure 4As shown, a flat connecting plane 16 is formed on the other side of the oil pump body 1. An oil supply switch groove 161 is opened on the inner side of the connecting plane 16. An oil supply channel 112 is opened on the inner wall of the oil storage chamber 11, and the oil supply channel 112 passes through the oil supply switch groove 161 to form a passage for oil transportation. Several bolt connection holes 162 are evenly opened on the outer periphery of the connecting plane 16. The oil distribution plate 2 is in close contact with the connecting plane 16, and several oil distribution connection holes 21 corresponding to the positions of the bolt connection holes 162 are opened in the oil distribution plate 2. The pump body end cover 6 is in close contact with the outer side of the oil distribution plate 2. Long fastening bolts 9 pass through the pump body end cover 6, the oil distribution connection holes 21 and the bolt connection holes 162 in sequence to fasten the three together as one. The assembly is convenient and the connection is stable. The oil pump rotor 3 is installed inside the oil distribution plate 2 to realize the function of oil suction and discharge.

[0018] To elaborate further, such as Figure 2 As shown, a keyway 31 is provided at the center of the oil pump rotor 3, and several rotor blades 32 are evenly connected to its outer circumference. When the rotor blades 32 rotate with the oil pump rotor 3, they can change the volume of the cavity to realize the oil suction and discharge action. One end of the oil pump shaft 4 is fixedly connected to a connecting key 42. The connecting key 42 extends into the keyway 31 and is adapted to the keyway 31, so that the oil pump shaft 4 and the oil pump rotor 3 rotate synchronously, ensuring the reliability of power transmission.

[0019] To elaborate further, such as Figure 3 and Figure 4 As shown, a vent hole 121 is provided on the inner wall of the pressure chamber 12, and a vent switch groove 163 is provided on the pump body 1 on one side of the connecting plane 16. The vent hole 121 is located inside the vent switch groove 163, forming a vent passage inside the pump body, which facilitates pressure balance adjustment. Several mounting bases 17 are also integrally formed on the outer periphery of the pump body 1. Oil passages 171 are provided in the mounting bases 17, which not only facilitates the overall installation and fixation of the oil pump, but also enables the external oil circuit to be connected to the inside of the pump body through the oil passages 171.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. An air oil pump, comprising an oil pump body (1), an oil distribution plate (2), an oil pump rotor (3), an oil pump shaft (4), a gravity block (5), a pump body end cover (6), and a pressure cover (7), characterized in that: The oil pump body (1) has an oil storage chamber (11) and a pressure block cavity (12) on one side. An inner connecting protrusion (111) is formed in the oil storage chamber (11). An oil storage sealing plate (8) is provided on the outside of the oil storage chamber (11) and is fitted and sealed with the inner connecting protrusion (111). The gravity pressure block (5) is set in the pressure block cavity (12). An upper connecting hole (13) and a middle connecting hole (14) are formed in the pump body. The pressure cover (7) is fitted with one side of the pump body and is fixedly connected to the pump body through the upper connecting hole (13) and the middle connecting hole (14). A bearing seat (15) is formed at the center of the oil pump body (1). An oil pump bearing (41) is sleeved on the outside of the oil pump shaft (4) and the oil pump shaft (4) passes through the bearing seat (15). 15) A connecting plane (16) is formed on the other side of the oil pump body (1). An oil supply switch groove (161) is opened on the inner side of the connecting plane (16). An oil supply channel (112) is opened on the inner wall of the oil storage chamber (11) and the oil supply channel (112) passes through the oil supply switch groove (161). A number of bolt connection holes (162) are opened on the outer periphery of the connecting plane (16). The oil distribution plate (2) is fitted with the connecting plane (16) and a number of oil distribution connection holes (21) are opened in the oil distribution plate (2). The pump body end cover (6) is fitted with the outer side of the oil distribution plate (2). Long fastening bolts (9) are passed through the pump body end cover (6), the oil distribution connection holes (21) and the bolt connection holes (162). The oil pump rotor (3) is installed inside the oil distribution plate (2).

2. An air oil pump according to claim 1, characterized in that: The oil pump rotor (3) has a keyway (31) at its center and a number of rotor blades (32) are connected to the outer periphery of the oil pump rotor (3).

3. An air oil pump according to claim 2, characterized in that: One end of the oil pump shaft (4) is fixedly connected to a connecting key (42), which extends into the keyway (31) and connects with the keyway (31) to connect the oil pump shaft (4) to the oil pump rotor (3).

4. An air oil pump according to claim 1, characterized in that: A vent hole (121) is provided on the inner wall of the pressing chamber (12), and a vent switch groove (163) is provided on the pump body on one side of the connecting plane (16). The vent hole (121) is located inside the vent switch groove (163).

5. An air oil pump according to claim 1, characterized in that: The pump body has several mounting bases (17) formed on its outer periphery, and the mounting bases (17) have oil passages (171) inside them.

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