Single-cavity shell structure of oil pump

Abstract

The utility model discloses an oil pump single-cavity shell structure which comprises a shell and a connecting plate, the side face of the shell is connected with the connecting plate, the bottom face of the connecting plate is flush with the bottom face of the shell, a cavity is formed in the shell, a connecting part A is arranged at the top of the shell, the height of the top face of the connecting part A is larger than that of the top face of the shell, and a connector is arranged on one side of the shell. A connecting part B is arranged on the other side of the shell. According to the oil pump shell structure, through the arrangement of the groove A, the through hole A and the through hole B, liquid can flow among the cavity, the connector and the connecting part B, the oil pump is provided with a single cavity, the use requirement can be met, and the size of the oil pump shell structure is reduced; through the arrangement of the connector, the side face of the shell can be connected with a pipeline; and through the arrangement of the connecting part B, a certain amount of liquid is stored, and meanwhile the speed reduction effect on liquid flowing is achieved. The utility model has the characteristics of simple structure, no other movable structure, convenience in maintenance, long service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear oil pumps, and in particular relates to a single-cavity housing structure of an oil pump. Background Art

[0002] Gear pumps are suitable for conveying various lubricating liquids and are generally used at temperatures not exceeding 200°C. As power components in hydraulic systems, gear pumps have a wide range of applications. Because they must withstand a certain amount of internal pressure, gear pumps require high-strength materials. They also require a liquid deceleration function to prevent significant differences in liquid flow rates between the two channels, which could cause the gear pump to malfunction.

[0003] Patent document with announcement number CN219012858U discloses a marine high-pressure oil pump gear, comprising a housing, one end of which is fixedly connected to an oil inlet pipe, one end of which is welded to an oil outlet pipe, a sealing assembly provided on one side of the housing, and the sealing assembly including a sealing groove, a sealing gasket, a side plate, a positioning groove, and a positioning bolt, and a fixing assembly provided on one side of the sealing assembly. The marine high-pressure oil pump gear is provided with a housing, an oil inlet pipe, an oil outlet pipe, a sealing assembly, a sealing groove, a sealing gasket, a side plate, a positioning groove, and a positioning bolt. When the side plate is installed, the side plate can be clamped in the sealing groove by the sealing gasket for sealing. In addition, by fixing the side plate in the housing with the positioning bolts, the sealing effect of the oil pump gear can be enhanced, and the situation in which the fixing bolts shake due to long-term disassembly and installation can be reduced.

[0004] The patent document with announcement number CN106764368A discloses a new gear-type oil pump, including an oil pump housing, an oil inlet, an oil inlet channel, a main oil chamber, a first working chamber, a driving gear, a gear cam, a gear groove, a driving shaft, a second working chamber, a follower gear, a follower rotating shaft, an oil outlet channel, an oil outlet, an oil filter, an oil unloading tank and a channel protective layer. The main oil chamber is provided on the right side of the oil inlet channel, the upper side of the main oil chamber is connected to the first working chamber, the driving gear is installed in the first working chamber, the driving gear is composed of a gear cam and a gear groove, the driving shaft is installed in the driving gear, the lower side of the main oil chamber is communicated with the second working chamber, the follower gear is installed in the second working chamber, and the follower rotating shaft is installed in the follower gear.

[0005] However, the casing connection pipes of the above-mentioned two oil pumps are directly connected, and no corresponding flow deceleration structure is set, which will have a certain impact on the stability of gear operation; the structure for fastening the connection when connecting to other pipes is not disclosed, which may have a certain impact on the stability of the pipe connection. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides an oil pump single-cavity housing structure.

[0007] The utility model is achieved through the following technical solutions.

[0008] The utility model provides an oil pump single-cavity housing structure, comprising a housing and a connecting plate, wherein the side surface of the housing is connected to the connecting plate, the bottom surface of the connecting plate is flush with the bottom surface of the housing, a cavity is provided in the housing, a connecting portion A is provided on the top of the housing, the top surface height of the connecting portion A is greater than the top surface height of the housing, a connecting head is provided on one side of the housing, and a connecting portion B is provided on the other side of the housing.

[0009] Preferably, the cavity includes cavity A and cavity B, both of which are arc-shaped, a groove A is provided at the connection between cavity A and cavity B, two grooves A are provided for supporting each other, and a through hole A is provided on the bottom surface of the groove A.

[0010] Preferably, openings B are provided at both ends of the cavity A, opening B is provided at one end of the cavity B, cavity A is connected to cavity B, a through hole B is provided on one side of the groove A, the groove A on one side is connected to the connecting head through the through hole B, and the groove A on the other side is connected to the connecting part B through the through hole B.

[0011] Preferably, the connecting portion B is cylindrical, a cavity C is provided in the connecting portion B, and an opening C is provided on the bottom surface of the cavity C.

[0012] Preferably, a through hole C and a hole A are provided on the connector, and the through hole C passes through the connector.

[0013] Preferably, a plurality of holes B are provided on the shell, the connecting plate and the connecting portion A, and the connecting portion A is annular.

[0014] Preferably, a hole C and a hole D are provided on the bottom of the shell.

[0015] Preferably, one side of the shell is in the form of an arc portion, and a plurality of grooves are provided on the arc portion.

[0016] The beneficial effects of the present invention are:

[0017] The utility model, through the arrangement of groove A, through hole A, and through hole B, allows liquid to flow between the cavity, connector, and connection portion B, allowing the oil pump to be provided with a single cavity to meet usage requirements, reducing the volume of the oil pump housing structure. The arrangement of the connector allows the side of the housing to be connected to a pipeline. The arrangement of connection portion B reduces the flow of liquid while storing a certain amount of liquid. The utility model has a simple structure, without other movable structures, and is easy to maintain and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a structural diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the top surface structure of the utility model;

[0022] Figure 5 It is a side structural schematic diagram of the utility model;

[0023] In the figure: 1-shell, 11-arc portion, 12-groove, 2-connecting plate, 3-cavity, 31-cavity A, 32-cavity B, 33-groove A, 34-through hole A, 35-opening B, 36-through hole B, 4-connecting part A, 5-connecting head, 51-through hole C, 52-hole A, 6-connecting part B, 61-cavity C, 62-opening C, 7-hole B, 8-hole C, 9-hole D. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.

[0025] Example:

[0026] like Figures 1 to 5 As shown, a single-cavity housing structure of an oil pump includes a housing 1 and a connecting plate 2. The side of the housing 1 is connected to the connecting plate 2, and the bottom of the connecting plate 2 is flush with the bottom of the housing 1. The housing 1 and the connecting plate 2 can be made of metal. A cavity 3 is provided in the housing 1, and a connecting portion A4 is provided on the top of the housing 1. The top surface height of the connecting portion A4 is greater than the top surface height of the housing 1. A connecting head 5 is provided on one side of the housing 1, and a connecting portion B6 is provided on the other side of the housing 1.

[0027] The cavity 3 includes a cavity A31 and a cavity B32, both of which are arc-shaped. A groove A33 is provided at the junction of the cavities A31 and B32. Two grooves A33 are provided in opposite directions. A through hole A34 is provided on the bottom of the groove A33. One end of the through hole A34 opens at the bottom of the housing 1 and can be connected to a corresponding pipe. A plurality of holes B7 are provided around the bottom of the cavity 3 to facilitate connection of the cavity 3 to the corresponding pipe via bolts or the like.

[0028] Openings B35 are provided at both ends of the cavity A31, that is, the two ends of the cavity A31 are connected and can be connected to two different pipes. An opening B35 is provided at one end of the cavity B32, that is, the cavity B32 can be connected to a pipe. The cavity A31 and the cavity B32 are connected to form a cavity 3. A through hole B36 is provided on one side of the groove A33. The groove A33 on one side is connected to the connector 5 through the through hole B36, and the groove A33 on the other side is connected to the connecting part B6 through the through hole B36, so that the liquid can flow between the cavity 3, the connecting head 5 and the connecting part B6.

[0029] The connecting portion B6 is cylindrical and contains a cavity C61. The bottom of the cavity C61 is provided with an opening C62, which connects the cavity to the corresponding pipe of the mounting platform. One side of the cavity C61 is connected to the through-hole B36, allowing liquid to enter and exit the cavity C61 and cavity 3 through the through-hole B36. After the liquid enters the cavity C61 from the corresponding pipe of the mounting platform, it stores a certain amount of liquid and has a certain deceleration effect on the liquid flow.

[0030] The connector 5 is provided with a through hole C51 and a hole A52. The through hole C51 is provided through the connector 5. The connector 5 is connected to the through hole B36 through the through hole C51. The connector 5 can be connected to other pipes through the hole A52 and screws.

[0031] Several holes B7 are provided on the shell 1, the connecting plate 2 and the connecting part A4. The several holes B7 on the top surface of the shell 1 are provided in the area surrounded by the connecting part A4. The connecting part A4 is annular and is coaxially arranged with the cavity A31. The connecting plate 2 can be fixed on the mounting platform by using bolts or the like through the holes B7, thereby being used for the installation of the shell structure and the fastening of the shell 1 and the connecting part A4 to the corresponding pipeline.

[0032] The bottom of the shell 1 is provided with a hole C8 and a hole D9, which can be used for installation and positioning of the shell structure.

[0033] One side of the housing 1 is in the form of an arc portion 11 , and a plurality of grooves 12 are provided on the arc portion 11 . The grooves 12 can increase the surface area of ​​the housing 1 and facilitate heat dissipation.

Claims

1. A single-chamber oil pump housing structure, characterized in that: The invention comprises a shell (1) and a connecting plate (2), wherein the side surface of the shell (1) is connected to the connecting plate (2), the bottom surface of the connecting plate (2) is flush with the bottom surface of the shell (1), a cavity (3) is provided in the shell (1), a connecting portion A (4) is provided on the top of the shell (1), the top surface height of the connecting portion A (4) is greater than the top surface height of the shell (1), a connecting head (5) is provided on one side of the shell (1), and a connecting portion B (6) is provided on the other side of the shell (1).

2. The oil pump single-chamber housing structure according to claim 1, characterized in that: The cavity (3) includes a cavity A (31) and a cavity B (32), wherein the cavity A (31) and the cavity B (32) are both arc-shaped, a groove A (33) is provided at the connection between the cavity A (31) and the cavity B (32), two grooves A (33) are provided in opposite directions, and a through hole A (34) is provided on the bottom surface of the groove A (33).

3. The oil pump single-chamber housing structure according to claim 2, characterized in that: Both ends of the cavity A (31) are provided with openings B (35), one end of the cavity B (32) is provided with an opening B (35), the cavity A (31) is communicated with the cavity B (32), one side of the groove A (33) is provided with a through hole B (36), the groove A (33) on one side is communicated with the connector (5) through the through hole B (36), and the groove A (33) on the other side is communicated with the connecting portion B (6) through the through hole B (36).

4. The oil pump single-chamber housing structure according to claim 1, characterized in that: The connecting portion B (6) is cylindrical, a cavity C (61) is provided in the connecting portion B (6), and an opening C (62) is provided on the bottom surface of the cavity C (61).

5. The oil pump single-chamber housing structure according to claim 1, characterized in that: A through hole C (51) and a hole A (52) are provided on the connector (5), and the through hole C (51) is provided through the connector (5).

6. The oil pump single-chamber housing structure according to claim 1, characterized in that: A plurality of holes B (7) are provided on the housing (1), the connecting plate (2) and the connecting portion A (4), and the connecting portion A (4) is annular.

7. The oil pump single-chamber housing structure according to claim 1, characterized in that: A hole C (8) and a hole D (9) are provided at the bottom of the housing (1).

8. The oil pump single-chamber housing structure according to claim 1, characterized in that: One side of the shell (1) is in the form of an arc portion (11), and a plurality of grooves (12) are provided on the arc portion (11).

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