Gear pump shell

Abstract

The utility model discloses a gear pump shell, which comprises a main body, a fixing plate A, a fixing plate B and a connecting part, one end of the main body is connected with the fixing plate A, the other end of the main body is connected with the fixing plate B, one side of the main body is connected with the connecting part, a cavity A and a cavity B are arranged in the main body, and the cavity A is connected with the cavity B. According to the utility model, the fixing plate A is connected with the pump body cover, the fixing plate B is connected with the mounting platform, and the through holes A, the through holes B and the through holes C are arranged, so that a plurality of liquid passages are formed. The through hole A and the through hole B are coaxially arranged but different in aperture size, so that the flow velocity of liquid entering the through hole B from the through hole A is changed conveniently, and the flow velocity is prevented from being too high. The utility model discloses can be made of stainless steel material, simple structure, has better durability.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear pumps, and particularly relates to a gear pump housing. Background Art

[0002] Gear oil pumps are suitable for transporting various lubricating liquids, generally used at temperatures not higher than 200 °C. As a power element of a hydraulic system, gear oil pumps have a wide range of applications. Since the inside of a gear oil pump needs to withstand a certain pressure, materials with relatively high strength are required for preparation. At the same time, it is necessary to have a liquid deceleration function to avoid the operation of the gear oil pump caused by a large difference in liquid flow velocity between two channels.

[0003] The patent document with the publication number CN203420882U discloses a gear oil pump housing structure with double pressure-dividing ports, including a pump housing. A pair of pressure-dividing ports are communicated on the side wall of the pump housing. A vertical shaft extending into the pump housing is rotatably installed at the top of the pump housing. A pair of blocking blocks are connected to the shaft and are staggered at a certain angle in the vertical direction. The upper blocking block can block the upper pressure-dividing port, and the lower blocking block can block the lower pressure-dividing port. The utility model can quickly discharge the oil liquid in the pump housing and improve the pressure-dividing speed. However, the reliability of the housing structure with a movable structure formed by setting the shaft and the blocking blocks connected therein is lower than that of the housing without a movable structure. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a gear pump housing.

[0005] The utility model is achieved through the following technical solutions.

[0006] A gear pump housing provided by the utility model includes a main body, a fixing plate A, a fixing plate B, and a connecting portion. One end of the main body is connected to the fixing plate A, the other end of the main body is connected to the fixing plate B, and one side of the main body is connected to the connecting portion. A cavity A and a cavity B are arranged inside the main body, and the cavity A and the cavity B are connected.

[0007] Preferably, a groove A is arranged at the connection of the cavity A and the cavity B. A through hole A is arranged on the bottom surface of the groove A, and a through hole B is arranged on the top surface of the groove A.

[0008] Preferably, both the cavity A and the cavity B are arc-shaped. A through hole C is arranged on the bottom surface at the connection of the cavity A and the cavity B, and through holes D are arranged at the bottoms of both the cavity A and the cavity B.

[0009] Preferably, an opening, holes A, B, and C are arranged on the fixing plate A. A plurality of holes A and B are arranged around the opening, the hole C is arranged between the holes B, and a protrusion A is arranged on one side of the fixing plate A.

[0010] Preferably, the fixing plate B is provided with a hole D, and a protrusion B is provided on one side of the fixing plate B. The protrusion B is located below the connecting part.

[0011] Preferably, a groove B is provided on the outer wall of the main body. A plurality of the grooves B are arranged around the main body, and the groove B is arc-shaped.

[0012] Preferably, the cross-section of the connecting part is rectangular, and a screw hole is provided on the connecting part. The screw hole is arranged along the length extension direction of the connecting part.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The present utility model is connected to the pump body cover through the fixing plate A, connected to the installation platform through the fixing plate B, and a plurality of liquid passages are formed through the settings of the through hole A, the through hole B and the through hole C. The through hole A and the through hole B are coaxially arranged but have different hole diameters, which is convenient for changing the flow rate of the liquid entering the through hole B from the through hole A and avoiding too fast flow rate. The present utility model can be prepared by using stainless steel materials, has a simple structure and has good durability. Description of the Drawings

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is a side view structural schematic diagram of the present utility model;

[0017] Figure 3 is a top view structural schematic diagram of the present utility model;

[0018] Figure 4 is a bottom view structural schematic diagram of the present utility model;

[0019] In the figure: 1 - main body, 11 - cavity A, 12 - cavity B, 13 - groove A, 14 - through hole A, 15 - through hole B, 16 - through hole C, 17 - through hole D, 2 - fixing plate A, 21 - opening, 22 - hole A, 23 - hole B, 24 - hole C, 25 - protrusion A, 3 - fixing plate B, 31 - hole D, 32 - protrusion B, 4 - connecting part, 41 - screw hole, 5 - groove B. Detailed Embodiments

[0020] The technical solutions of the present utility model will be further described below, but the scope of protection is not limited thereto.

[0021] Embodiment:

[0022] As Figures 1 to 4As shown in the figure, a gear pump housing includes a main body 1, a fixing plate A 2, a fixing plate B 3, and a connecting portion 4. One end of the top of the main body 1 is connected to the fixing plate A 2, one end of the bottom of the main body 1 is connected to the fixing plate B 3, and one side of the main body 1 is connected to the connecting portion 4. A cavity A 11 and a cavity B 12 are arranged inside the main body 1, and the cavity A 11 and the cavity B 12 are connected.

[0023] A groove A 13 is arranged at the connection of the cavity A 11 and the cavity B 12. A through hole A 14 is arranged on the bottom surface of the groove A 13, and the other end of the through hole A 14 penetrates through the fixing plate B 3, serving as a liquid delivery passage. A through hole B 15 is arranged on the top surface of the groove A 13, and the other end of the through hole B 15 penetrates through the fixing plate A 2, serving as a liquid delivery passage.

[0024] Both the cavity A 11 and the cavity B 12 are arc-shaped. The cavity A 11 and the cavity B 12 are liquid gathering places. A through hole C 16 is arranged on the bottom surface at the connection of the cavity A 11 and the cavity B 12, and the other end of the through hole C 16 penetrates through the fixing plate B 3, serving as a liquid delivery passage. Through holes D 17 are arranged at the bottoms of both the cavity A 11 and the cavity B 12, and the other ends of the through holes D 17 penetrate through the fixing plate B 3, serving as liquid delivery passages.

[0025] An opening 21, holes A 22, holes B 23, and holes C 24 are arranged on the fixing plate A 2. The opening 21 has the same shape as the cavity A 11 and the cavity B 12 and can serve as the opening of the cavity A 11 and the cavity B 12. A plurality of the holes A 22 and the holes B 23 are arranged around the opening 21. By using bolts to pass through the holes A 22, the holes B 23, and the corresponding holes on the pump body cover, the gear pump housing can be firmly connected to the pump body cover. The holes C 24 are arranged between the holes B 23 and can be used for positioning when the gear pump housing is connected to the pump body cover. A protrusion A 25 is arranged on one side of the fixing plate A 2 for adapting to the installation environment.

[0026] The fixing plate B 3 is provided with a hole D 31. By using bolts to pass through the hole D 31 and the corresponding holes on the installation platform of the gear pump housing, the gear pump housing can be firmly connected to the installation platform. A protrusion B 32 is arranged on one side of the fixing plate B 3. The protrusion B 32 is located below the connecting portion 4 and is used for adapting to the installation environment.

[0027] A groove B 5 is arranged on the outer wall of the main body 1. A plurality of the grooves B 5 are arranged around the main body 1. The groove B 5 is arc-shaped to facilitate the installation of the bolts on the hole D 31.

[0028] The cross-section of the connecting portion 4 is rectangular. A threaded hole 41 is arranged on the connecting portion 4. The threaded hole 41 is arranged along the length extension direction of the connecting portion 4, and other devices can be connected through the threaded hole 41.

Claims

1. A gear pump housing, characterized in that: The invention comprises a main body (1), a fixing plate A (2), a fixing plate B (3) and a connecting portion (4); one end of the main body (1) is connected to the fixing plate A (2), the other end of the main body (1) is connected to the fixing plate B (3), one side of the main body (1) is connected to the connecting portion (4); a cavity A (11) and a cavity B (12) are arranged in the main body (1), and the cavity A (11) and the cavity B (12) are connected.

2. A gear pump housing according to claim 1, characterized in that: A groove A (13) is arranged at the connection between the cavity A (11) and the cavity B (12), a through hole A (14) is arranged on the bottom surface of the groove A (13), and a through hole B (15) is arranged on the top surface of the groove A (13).

3. A gear pump housing according to claim 1, characterized in that: The cavity A (11) and the cavity B (12) are both arc-shaped, a through hole C (16) is provided on the bottom surface of the connection between the cavity A (11) and the cavity B (12), and a through hole D (17) is provided at the bottom of the cavity A (11) and the cavity B (12).

4. A gear pump housing according to claim 1, characterized in that: The fixing plate A (2) is provided with an opening (21), a hole A (22), a hole B (23) and a hole C (24); a plurality of holes A (22) and holes B (23) are provided around the opening (21); the hole C (24) is provided between the holes B (23); and a protrusion A (25) is provided on one side of the fixing plate A (2).

5. A gear pump housing according to claim 1, characterized in that: The fixing plate B (3) is provided with a hole D (31), and a protrusion B (32) is provided on one side of the fixing plate B (3), and the protrusion B (32) is located below the connecting portion (4).

6. A gear pump housing according to claim 1, characterized in that: The outer wall of the main body (1) is provided with a groove B (5), and a plurality of grooves B (5) are provided around the main body (1), and the grooves B (5) are in an arc shape.

7. A gear pump housing according to claim 1, characterized in that: The connecting portion (4) has a rectangular cross section, and a screw hole (41) is provided on the connecting portion (4). The screw hole (41) is provided along the length extension direction of the connecting portion (4).

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