A longitudinally arranged hydraulic hydrodynamic pump

Abstract

The utility model discloses a kind of longitudinal layout hydraulic liquid pump, belong to hydraulic liquid pump technical field, including lubricating pump, pump body and cylinder body, the pump body is inserted into lubricating pump from bottom, the pump body is connected by bolt with lubricating pump, the cylinder body is threadedly connected at pump body bottom, the cylinder body bottom is threadedly connected with stop block, the upper end of pump body is provided with plug, the one end side wall of pump body inserted into lubricating pump is provided with lubricating oil inlet, the other side is provided with lubricating oil outlet, the lubricating oil cavity is opened in the pump body, the lubricating oil inlet and lubricating oil outlet are communicated with lubricating oil cavity respectively, the pump body and cylinder body inside are commonly provided with plunger assembly, the side wall of plunger assembly is provided with return spring, the hydraulic oil port is communicated with plunger assembly.The utility model is installed in longitudinal layout, the layout of hydraulic pump can be consistent with the axial direction of lubricating pump body oil tank, more suitable for the installation environment of limited horizontal space.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic pump technology, and particularly relates to a longitudinally arranged hydraulic pump. Background Technology

[0002] A hydraulic pump is a type of pump that uses the pressure of a liquid as a power source to drive its operation. Unlike common electric or pneumatic pumps, hydraulic pumps rely on the energy of another pressurized liquid to deliver or pressurize the target liquid. Hydraulic pumps are also important components in lubrication pump systems that provide power to the lubricating medium. Common power components for lubrication media include pneumatic pump assemblies, electric pump assemblies, and hydraulic-hydraulic pumps.

[0003] Common hydraulic pump designs are usually quite complex, making maintenance and disassembly troublesome. In addition, when using conventional hydraulic pumps, they are usually installed horizontally on the lubrication pump. This installation method requires more lateral space in the spatial layout of the lubrication pump system. More lateral space means that the entire lubrication pump system occupies a larger area, which is not conducive to construction in complex environments.

[0004] Therefore, we propose a longitudinally arranged hydraulic pump to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a longitudinally arranged hydraulic pump.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A longitudinally arranged hydraulic pump includes a lubrication pump, a pump body, and a cylinder. The pump body extends into the lubrication pump from the bottom and is bolted to it. The cylinder is threaded to the bottom of the pump body, and a stop block is threaded to the bottom of the cylinder. A plug is provided at the upper end of the pump body. A lubricating oil inlet is provided on one side wall of the pump body extending into the lubrication pump, and a lubricating oil outlet is provided on the other side. A lubricating oil chamber is provided in the pump body, and the lubricating oil inlet and outlet are respectively connected to the lubricating oil chamber. A plunger assembly is provided inside the pump body and the cylinder. A return spring is provided on the side wall of the plunger assembly. A hydraulic oil port is provided in the stop block and is connected to the plunger assembly.

[0008] Preferably, the pump body is flange-shaped, and the cylinder body has a hexagonal cross-section.

[0009] Preferably, the plunger assembly includes a plunger rod and a plunger seat, the plunger rod and the plunger seat are pinned together, the return spring is located outside the plunger rod, and the end of the plunger rod away from the plunger seat extends into the lubricating oil chamber.

[0010] Preferably, the plunger seat sidewall is provided with a guide ring groove, and the plunger seat sidewall is also provided with a sealing ring.

[0011] Preferably, a one-way valve is installed on the side wall of the pump body, and the one-way valve is connected to the lubricating oil outlet.

[0012] Preferably, the cylinder body has a vent hole on its side.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] This application features a longitudinal layout for installation, allowing the hydraulic pump to be aligned with the axial direction of the lubrication pump body's oil tank. This makes it more suitable for installation environments with limited lateral space. Furthermore, the hydraulic pump in this application is assembled with a separate main body. The pump body, cylinder, and stop are connected by sealing rings and threads, resulting in a simpler and more convenient overall structure, and easier replacement and maintenance in the future. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection structure between the lubrication pump, pump body, and cylinder body in this utility model;

[0016] Figure 2 This is a cross-sectional view of the pump body and cylinder body in this utility model.

[0017] In the diagram: 1. Lubrication pump; 2. Pump body; 3. Cylinder body; 4. Stop block; 5. Plug; 6. Lubricating oil inlet; 7. Lubricating oil outlet; 8. Lubricating oil chamber; 9. Return spring; 10. Hydraulic oil port; 11. Piston rod; 12. Piston seat; 13. Guide ring groove; 14. Sealing ring; 15. Check valve; 16. Vent hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figures 1-2 As shown, a longitudinally arranged hydraulic pump includes a lubrication pump 1, a pump body 2, and a cylinder 3. The pump body 2 extends into the lubrication pump 1 from the bottom and is connected to the lubrication pump 1 by bolts. The part of the pump body 2 that extends into the lubrication pump 1 can also be designed with four additional lubrication medium inlets. The cylinder 3 is threadedly connected to the bottom of the pump body 2. Due to the adoption of a main body separation assembly process in which the main components are connected by threads, the overall structure is simpler and more convenient, and the replacement and maintenance are also more convenient in the future. A vent hole 16 is opened on the side of the cylinder 3. The pump body 2 is flange-shaped, which makes it more in line with the shape of the lubrication pump 1. The cross-section of the cylinder 3 is hexagonal.

[0020] A stop block 4 is threadedly connected to the bottom of the cylinder body 3. The stop block 4 is used to limit the plunger assembly and allow hydraulic oil to enter. A hydraulic oil port 10 is provided in the stop block 4, which is connected to the plunger assembly. A plug 5 is provided at the upper end of the pump body 2, which limits the other end of the plunger assembly. A lubricating oil inlet 6 is provided on one side wall of the pump body 2 that extends into the lubrication pump 1, and a lubricating oil outlet 7 is provided on the other side. A lubricating oil chamber 8 is provided in the pump body 2. The lubricating oil inlet 6 and the lubricating oil outlet 7 are respectively connected to the lubricating oil chamber 8. A one-way valve 15 is installed on the side wall of the pump body 2, which is connected to the lubricating oil outlet 7. The lubricating oil inlet 6 is located in the lubrication pump 1, so the lubricating oil in the lubrication pump 1 can be introduced into the lubricating oil chamber 8 of the pump body 2. Due to the setting of the one-way valve 15, the lubricating oil can only flow out from the lubricating oil outlet 7, but cannot flow in from the lubricating oil outlet 7.

[0021] The pump body 2 and cylinder body 3 are both equipped with a plunger assembly. A return spring 9 is provided on the side wall of the plunger assembly. The plunger assembly includes a plunger rod 11 and a plunger seat 12. The plunger rod 11 and the plunger seat 12 are pinned together. A guide ring groove 13 is provided on the side wall of the plunger seat 12. A sealing ring 14 is also provided on the side wall of the plunger seat 12. The return spring 9 is located outside the plunger rod 11. The end of the plunger rod 11 away from the plunger seat 12 extends into the lubricating oil chamber 8. The force applied by the return spring 9 to the plunger rod 11 will keep the entire plunger assembly in a state of pressing against the hydraulic oil port 10.

[0022] The working principle is as follows: When the hydraulic oil is pressurized, the high-pressure hydraulic oil enters the cylinder body 3 through the hydraulic oil port 10 on the stop block 4, and the pressure is directly applied to the plane of the plunger seat 12. Under the action of the hydraulic oil, the plunger seat 12 pushes the plunger rod 11 upward, and the return spring 9 is compressed accordingly. At the same time, the lubricating oil in the lubricating oil chamber 8 inside the pump body 2 is pushed into the oil circuit inside the pump body 2 by the movement of the plunger rod 11, and is guided to the one-way valve 15 through the lubricating oil outlet 7. When the hydraulic oil is depressurized, the plunger assembly moves downward under the action of the return spring 9. At the same time, the lubricating oil chamber 8 inside the pump body 2 generates negative pressure to draw the lubricating oil in the lubricating pump 1 into it and wait to be pushed into the oil circuit. This completes one hydraulic oil working cycle.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A longitudinally arranged hydraulic pump, comprising a lubrication pump (1), a pump body (2), and a cylinder body (3), characterized in that, The pump body (2) extends into the lubrication pump (1) from the bottom. The pump body (2) and the lubrication pump (1) are connected by bolts. The cylinder body (3) is threaded to the bottom of the pump body (2). A stop block (4) is threaded to the bottom of the cylinder body (3). A plug (5) is provided at the upper end of the pump body (2). A lubricating oil inlet (6) is provided on the side wall of the pump body (2) extending into the lubrication pump (1), and a lubricating oil outlet (7) is provided on the other side. A lubricating oil chamber (8) is provided in the pump body (2). The lubricating oil inlet (6) and the lubricating oil outlet (7) are respectively connected to the lubricating oil chamber (8). A plunger assembly is provided inside the pump body (2) and the cylinder body (3). A return spring (9) is provided on the side wall of the plunger assembly. A hydraulic oil port (10) is provided in the stop block (4). The hydraulic oil port (10) is connected to the plunger assembly.

2. A longitudinally arranged hydraulic pump according to claim 1, characterized in that, The pump body (2) is flange-shaped, and the cylinder body (3) has a hexagonal cross-section.

3. A longitudinally arranged hydraulic pump according to claim 1, characterized in that, The plunger assembly includes a plunger rod (11) and a plunger seat (12), the plunger rod (11) and the plunger seat (12) are pinned together, the return spring (9) is located outside the plunger rod (11), and the end of the plunger rod (11) away from the plunger seat (12) extends into the lubricating oil chamber (8).

4. A longitudinally arranged hydraulic pump according to claim 3, characterized in that, The side wall of the plunger seat (12) is provided with a guide ring groove (13), and the side wall of the plunger seat (12) is also provided with a sealing ring (14).

5. A longitudinally arranged hydraulic pump according to claim 1, characterized in that, A one-way valve (15) is installed on the side wall of the pump body (2), and the one-way valve (15) is connected to the lubricating oil outlet (7).

6. A longitudinally arranged hydraulic pump according to claim 2, characterized in that, The cylinder (3) has a vent hole (16) on its side.

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