Three-cylinder vertical plunger pump

Abstract

The utility model discloses a three-cylinder vertical plunger pump. The plunger pump comprises a plunger pump main body which is vertically arranged, center coincident valve groups which are arranged in the plunger pump main body and are composed of three vertically arranged cylinder bodies at intervals, a high-pressure collecting area which is arranged in the plunger pump main body and is matched with the center coincident valve groups, herringbone gears which are arranged among the center coincident valve groups, and herringbone gears which are arranged between the center coincident valve groups, the plunger pump body is provided with a high-pressure collecting area, the high-pressure water connectors are arranged on the two sides of the plunger pump body and correspond to the high-pressure collecting area, the power output shaft is arranged on the side wall of the plunger pump body, the lubricating oil pump is arranged on the other side wall of the plunger pump, and the internal lubricating oil channel is arranged in the plunger pump body and matched with the lubricating oil pump. The purposes of reducing the influence of gravity on equipment, reducing the proportion of the power box body and improving the rotation stability of the gear are achieved.

Description

Technical Field

[0001] The utility model relates to the production and application field of plunger pumps, in particular to a three-cylinder vertical plunger pump. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment.

[0003] Traditional plunger pumps are generally horizontal structures. During use, they are affected by their own gravity, which causes increased wear on the plunger seal and affects the service life of the plunger seal. In addition, the power box in the horizontal structure occupies a large space, making the gear rotation unstable.

[0004] How to solve the above technical problems is a technical problem that needs to be solved urgently at this stage.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a three-cylinder vertical plunger pump to reduce the influence of gravity on the equipment, reduce the proportion of the power box and improve the stability of gear rotation.

[0007] In order to achieve the above object, the technical solution of the utility model is as follows:

[0008] A three-cylinder vertical plunger pump comprises a vertically placed plunger pump body, a center overlap valve group composed of three vertically arranged cylinders arranged in an internal interval arranged in the plunger pump body, a high-pressure collection area arranged in the plunger pump body and matched with the center overlap valve group, a herringbone gear arranged between the center overlap valve groups, a high-pressure water interface arranged on both sides of the plunger pump body and corresponding to the high-pressure collection area, a power output shaft arranged on the side wall of the plunger pump body, a lubricating oil pump arranged on the other side wall of the plunger pump, and an internal lubricating oil channel arranged inside the plunger pump body and matched with the lubricating oil pump.

[0009] The utility model arranges a central coincidence valve group, a high-pressure collection area, a herringbone gear, a high-pressure water interface, a power output shaft, a lubricating oil pump and an internal lubricating oil channel in the injection pump body, and arranges the whole device vertically, so as to achieve the purpose of reducing the influence of gravity on the equipment, reducing the proportion of the power box and improving the stability of gear rotation.

[0010] Further preferably, the upper end surface of the center overlap valve group is provided with a dynamic metal gap seal, and the middle surface of the center overlap valve group is provided with a telescopic rubber sleeve seal.

[0011] Further preferably, the bottom end of the high-pressure water interface is connected to a water inlet joint.

[0012] Further preferably, the upper end of the lubricating oil pump is provided with an external lubricating oil filter interface, the bottom end of the lubricating oil pump is provided with a lubricating oil inlet pipe, the upper end of the side wall of the lubricating oil pump is provided with a lubricating oil regulating assembly, and one side of the lubricating oil regulating assembly is provided with a filtered lubricating oil interface.

[0013] Further preferably, a lubricating oil level sight glass is provided on one side surface of the plunger pump body, and a lubricating oil temperature detection device is provided on one side of the lubricating oil level sight glass.

[0014] Further preferably, a visible transparent cover plate is symmetrically arranged on the upper end surface of the plunger pump body, and the visible transparent cover plate is installed and fixed by fastening bolts.

[0015] Further preferably, a sliding bearing is symmetrically arranged at the bottom end of the plunger pump body.

[0016] Further preferably, the high-pressure collecting area runs through the interior of the plunger pump body and the top ends of the center coincident valve groups are connected to the high-pressure collecting area.

[0017] The utility model has the following advantages:

[0018] 1. The utility model arranges a central overlap valve group, a high-pressure collection area, a herringbone gear, a high-pressure water interface, a power output shaft, a lubricating oil pump and an internal lubricating oil channel in the injection pump body, and arranges the whole device vertically, so as to achieve the purpose of reducing the influence of gravity on the equipment, reducing the proportion of the power box and improving the stability of gear rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0020] Figure 1 A schematic cross-sectional view of a three-cylinder vertical plunger pump disclosed in an embodiment of the utility model;

[0021] Figure 2 It is a right side schematic diagram of a three-cylinder vertical plunger pump disclosed in an embodiment of the utility model;

[0022] Figure 3 It is a front view schematic diagram of a three-cylinder vertical plunger pump disclosed in an embodiment of the utility model;

[0023] Figure 4 It is a left side schematic diagram of a three-cylinder vertical plunger pump disclosed in an embodiment of the utility model;

[0024] The numbers and letters in the figure represent the corresponding component names:

[0025] 1. Plunger pump body 2. Center overlap valve group 3. High pressure collection area 4. Herringbone gear 5. High pressure water interface

[0026] 6. Power output shaft 7. Lubricating oil pump 8. Internal lubricating oil channel 9. Lubricating oil external filter interface

[0027] 10. Lubricating oil inlet pipe 11. Lubricating oil adjustment component 12. Lubricating oil interface after filtering

[0028] 13. Dynamic metal gap seal 14. Telescopic rubber sleeve seal 15. Water inlet joint 16. Lubricating oil level sight glass

[0029] 17. Lubricating oil temperature detection device 18. Visible transparent cover 19. Sliding bearing DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] The utility model provides a three-cylinder vertical plunger pump, whose working principle is to set a central overlap valve group, a high-pressure collection area, a herringbone gear, a high-pressure water interface, a power output shaft, a lubricating oil pump and an internal lubricating oil channel in the injection pump body, and set the equipment as a whole in a vertical position, so as to achieve the purpose of reducing the influence of gravity on the equipment, reducing the proportion of the power box and improving the stability of gear rotation.

[0032] The present invention is further described in detail below in conjunction with embodiments and specific implementation methods.

[0033] like Figure 1-Figure 4As shown, a three-cylinder vertical plunger pump comprises a vertically placed plunger pump body 1, a center overlap valve group 2 composed of three vertically arranged cylinders arranged in an internal interval arranged in the plunger pump body, a high-pressure collection area 3 arranged in the plunger pump body and matched with the center overlap valve group, a herringbone gear 4 arranged between the center overlap valve groups, a high-pressure water interface 5 arranged on both sides of the plunger pump body and corresponding to the high-pressure collection area, a power output shaft 6 arranged on the side wall of the plunger pump body, a lubricating oil pump 7 arranged on the other side wall of the plunger pump and an internal lubricating oil channel 8 arranged inside the plunger pump body and matched with the lubricating oil pump, the upper end of the lubricating oil pump is provided with a lubricating oil external filter interface 9, the bottom end of the lubricating oil pump is provided with a lubricating oil inlet pipe 10, the upper end of the side wall of the lubricating oil pump is provided with a lubricating oil regulating assembly 11, and one side of the lubricating oil regulating assembly is provided with a filtered lubricating oil interface 12.

[0034] The upper end surface of the center overlap valve group is provided with a dynamic metal gap seal 13, and the middle surface of the center overlap valve group is provided with a telescopic rubber sleeve seal 14.

[0035] The bottom end of the high-pressure water interface is connected to a water inlet connector 15 .

[0036] A lubricating oil level sight glass 16 is disposed on one side surface of the plunger pump body, and a lubricating oil temperature detection device 17 is disposed on one side of the lubricating oil level sight glass.

[0037] A visible transparent cover plate 18 is symmetrically arranged on the upper end surface of the plunger pump body, and the visible transparent cover plate is installed and fixed by fastening bolts.

[0038] A sliding bearing 19 is symmetrically arranged at the bottom end of the plunger pump body.

[0039] The specific use steps of the utility model are as follows: Figure 1-Figure 4 As shown, in actual operation, the herringbone gear 4 is arranged inside the plunger pump body 1, so that the speed change component is built-in, reducing the space occupied by the power box, and the herringbone double gear makes the transmission more stable; a sliding bearing 7 is provided at the bottom end of the plunger pump body 1 to increase the carrying load and force lubrication of the running parts, and a lubricating oil temperature detection device 17 is combined to perform self-inspection, and the lubricating oil regulating component (including a visual pressure gauge and a pressure sensor) is cooperated to realize automatic adjustment of the oil temperature and oil pressure; and the setting of the telescopic rubber sleeve seal 14 at the push rod can effectively isolate the oil.

[0040] At the same time, dynamic metal gap seal 13 is adopted, the sealing parts have no contact friction, no heat, the seal life is extended, the valve seat center and the plunger center coincide, the valve opens without obstruction, and the efficiency is high. At the same time, a three-cylinder layout is adopted to increase the equipment flow, and the plunger force is perpendicular to the ground, reducing the vibration of the equipment operation, so that the plunger is less affected by gravity and has no eccentric wear, thereby increasing the seal life and reducing the frequency of maintenance and replacement.

[0041] Through the above method, the three-cylinder vertical plunger pump provided by the utility model is provided with a central overlap valve group, a high-pressure collection area, a herringbone gear, a high-pressure water interface, a power output shaft, a lubricating oil pump and an internal lubricating oil channel in the injection pump body, and the whole equipment is arranged vertically, so as to achieve the purpose of reducing the influence of gravity on the equipment, reducing the proportion of the power box and improving the stability of gear rotation.

[0042] The above is only a preferred embodiment of a three-cylinder vertical plunger pump disclosed in the present utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present utility model, which all belong to the protection scope of the present utility model.

Claims

1. A three-cylinder vertical piston pump, characterized in that: The utility model comprises a vertically placed plunger pump body, an internal interval arranged in the plunger pump body and provided with a center overlap valve group composed of three vertically arranged cylinder bodies, a high-pressure collecting area arranged in the plunger pump body and matched with the center overlap valve group, a herringbone gear arranged between the center overlap valve groups, a high-pressure water interface arranged on both sides of the plunger pump body and corresponding to the high-pressure collecting area, a power output shaft arranged on the side wall of the plunger pump body, a lubricating oil pump arranged on the other side wall of the plunger pump, and an internal lubricating oil channel arranged inside the plunger pump body and matched with the lubricating oil pump.

2. A three-cylinder vertical piston pump according to claim 1, characterized in that: The upper end surface of the center overlap valve group is provided with a dynamic metal gap seal, and the middle surface of the center overlap valve group is provided with a telescopic rubber sleeve seal.

3. A three-cylinder vertical plunger pump according to claim 1, characterized in that: The bottom end of the high-pressure water interface is connected with a water inlet joint.

4. A three-cylinder vertical plunger pump according to claim 1, characterized in that: The upper end of the lubricating oil pump is provided with a lubricating oil external filter interface, the bottom end of the lubricating oil pump is provided with a lubricating oil inlet pipe, the upper end of the side wall of the lubricating oil pump is provided with a lubricating oil regulating component, and one side of the lubricating oil regulating component is provided with a filtered lubricating oil interface.

5. A three-cylinder vertical plunger pump according to claim 1, characterized in that: A lubricating oil level sight glass is arranged on one side surface of the plunger pump body, and a lubricating oil temperature detection device is arranged on one side of the lubricating oil level sight glass.

6. A three-cylinder vertical plunger pump according to claim 1, characterized in that: The upper end surface of the plunger pump body is symmetrically provided with a visible transparent cover plate, and the visible transparent cover plate is installed and fixed by fastening bolts.

7. A three-cylinder vertical piston pump according to claim 1, characterized in that: The bottom end of the plunger pump body is symmetrically provided with sliding bearings.

8. A three-cylinder vertical plunger pump according to claim 1, characterized in that: The high-pressure collecting area penetrates the interior of the plunger pump body and the top ends of the center coincident valve groups are connected to the high-pressure collecting area.

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