CN216665883U

CN216665883U - Plunger pump oil pressure sealing device

Info

Publication number: CN216665883U
Application number: CN202122359007.0U
Authority: CN
Inventors: 苏清芳
Original assignee: Fujian Tianfulong Environmental Protection Technology Co ltd
Current assignee: Fujian Tianfulong Environmental Protection Technology Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-06-03
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a plunger pump hydraulic sealing device, which comprises a cylinder body, wherein a power mechanism is arranged in the cylinder body, one side of the cylinder body is fixedly connected with a pump body, a working chamber is arranged in the pump body, and a first valve body and a second valve body are fixedly arranged at two ends of the working chamber.

Description

Plunger pump oil pressure sealing device

Technical Field

The utility model relates to the technical field of plunger pumps, in particular to a plunger pump oil pressure sealing device.

Background

The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. Plunger pumps are widely used in applications where high pressure, high flow and flow needs to be regulated, such as hydraulic machines, engineering machinery and ships. The existing single plunger pump has poor internal sealing performance, so that the plunger is not tightly sealed when moving inside the cylinder body, the oil pumping efficiency is reduced due to the reduction of air pressure, and the effect of the plunger pump cannot be effectively exerted.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a hydraulic sealing device for a plunger pump to solve the above technical problems.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a plunger pump oil pressure sealing device, includes the cylinder body, the internally mounted of cylinder body has power unit, one side fixedly connected with pump body of cylinder body, the studio has been seted up to the inside of the pump body, the both ends fixed mounting of studio has first valve body and second valve body.

Further, in order to provide power for pumping oil, as a preferable scheme of the present invention: the power mechanism comprises a plunger connected inside the cylinder body through a piston, a transmission rod is fixedly connected to one side of the plunger, a coupler is fixedly connected to one end of the transmission rod, an eccentric wheel is fixedly connected to one side of the coupler, and an input shaft is fixedly connected to the surface of the eccentric wheel.

Further, in order to make it possible to pump into the working chamber, as a preferred embodiment of the utility model: the first valve body comprises a valve seat fixedly connected to the bottom of the working chamber, the inlet valve is arranged in the middle of the valve seat, the surface of the valve seat is fixedly connected with a fixing frame, the bottom of the fixing frame is fixedly connected with a first spring, one end of the first spring is fixedly connected with a first movable valve, and the first movable valve is alternately connected to the inside of the inlet valve.

Further, in order to pump oil out of the working chamber, as a preferable aspect of the present invention: the second valve body comprises a valve column fixedly connected to the top of the working chamber, an outlet valve is arranged at the bottom of the valve column, a second spring is fixedly connected to the inside of the valve column, a second movable valve is fixedly connected to the bottom of the second spring and is alternately connected to the inside of the outlet valve, and an oil discharge hole is formed in the surface of the valve column in a surrounding mode.

Further, in order to make the sealing performance better, as a preferable aspect of the present invention: a plurality of first mounting grooves and second mounting groove have been seted up to the inner wall of cylinder body, the inside of first mounting groove is inlayed and is equipped with first seal ring, the inside second seal ring that is inlayed and is equipped with of second mounting groove.

Further, in order to facilitate the oil inlet and outlet, as a preferable aspect of the present invention: the oil outlet has been seted up at the top of the pump body, the inlet port has been seted up to the bottom of the pump body.

Further, in order to facilitate the operation of the plunger pump, as a preferred scheme of the utility model: a connecting hole is formed in one side of the surface of the cylinder body, and the input shaft is connected inside the connecting hole in a penetrating and inserting mode.

Further, in order to maintain the sealing performance inside the working chamber, as a preferable aspect of the present invention: the inner wall of the working chamber is located at the bottoms of the valve seat and the valve column and is provided with grooves, and sealing rings are embedded in the grooves.

The technical scheme can show that the utility model has the advantages that:

1. through the power mechanism that is equipped with, the input shaft drives the eccentric wheel with power transmission and drives the eccentric wheel and follow the rotation, and the eccentric wheel rotates the transfer line that drives shaft coupling one end fixed connection and moves, and the transfer line drives the plunger of one side fixed connection and does the piston motion inside the cylinder body, provides power for changing the pressure of studio and supports to realize first valve body and the work of second valve body and carry out the pump oil.

2. Through first mounting groove and the second mounting groove of seting up at the cylinder body inner wall, install first seal ring inside first mounting groove, install second seal ring inside the second mounting groove for when plunger swing joint is inside the cylinder body, have good gas tightness, prevent that the gas leakage from causing the inside atmospheric pressure of studio to descend, influence pump oil efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic view of the inner wall structure of the cylinder body of the present invention.

Fig. 3 is a schematic structural diagram of the power mechanism according to the present invention.

Fig. 4 is a schematic structural diagram of a first valve body of the utility model.

Fig. 5 is a schematic structural diagram of a second valve body of the present invention.

Fig. 6 is a schematic view of a seal ring installation structure of the present invention.

List of reference numerals: 1. a cylinder body; 2. a power mechanism; 21. a plunger; 22. a transmission rod; 23. a coupling; 24. an eccentric wheel; 25. an input shaft; 3. a pump body; 31. an oil outlet hole; 32. an oil inlet hole; 4. a working chamber; 5. a first valve body; 51. a valve seat; 52. an inlet valve; 53. a fixed mount; 54. a first spring; 55. a first movable valve; 6. a second valve body; 61. a spool; 62. an outlet valve; 63. a second spring; 64. a second movable valve; 65. an oil drain hole; 7. a first mounting groove; 8. a second mounting groove; 9. a first sealing gasket; 10. a second sealing gasket; 11. connecting holes; 12. a groove; 13. and (6) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a plunger pump oil pressure sealing device, includes cylinder body 1, and the internally mounted of cylinder body 1 has power unit 2, and one side fixedly connected with pump body 3 of cylinder body 1, studio 4 has been seted up to the inside of pump body 3, and studio 4's both ends fixed mounting has first valve body 5 and second valve body 6.

In this embodiment: the power mechanism 2 comprises a plunger 21 connected with the inside of the cylinder body 1 through a piston, a transmission rod 22 is fixedly connected with one side of the plunger 21, a coupler 23 is fixedly connected with one end of the transmission rod 22, an eccentric wheel 24 is fixedly connected with one side of the coupler 23, and an input shaft 25 is fixedly connected with the surface of the eccentric wheel 24.

When in specific use: the input shaft 25 transmits power to the eccentric wheel 24 and drives the eccentric wheel 24 to rotate along with the eccentric wheel 24, the eccentric wheel 24 rotates to drive the transmission rod 22 fixedly connected with one end of the coupler 23 to move, the transmission rod 22 drives the plunger 21 fixedly connected with one side to do piston motion in the cylinder body 1, power support is provided for changing the pressure in the working chamber 4, and therefore the first valve body 5 and the second valve body 6 work to pump oil.

In this embodiment: first valve body 5 includes valve seat 51 of fixed connection in studio 4 bottom, and import valve 52 has been seted up at valve seat 51's middle part, and valve seat 51's fixed surface is connected with mount 53, the first spring 54 of the bottom fixedly connected with of mount 53, the first movable valve 55 of the one end fixedly connected with of first spring 54, and first movable valve 55 alternates to be connected inside import valve 52.

When in specific use: when the plunger 21 is pulled out, the pressure inside the working chamber 4 is reduced, the outlet valve 62 is closed and is lower than the pressure of the inlet valve 52, at this time, the first spring 54 at the bottom of the fixed frame 53 drives the inlet valve 52 to move to the inside of the working chamber 4 to be opened, at this time, the inlet valve 52 moves out of the inside of the first movable valve 55, so that the external oil is pumped into the inside of the working chamber 4 from the first movable valve 55 to finish oil feeding.

In this embodiment: the second valve body 6 comprises a valve column 61 fixedly connected to the top of the working chamber 4, an outlet valve 62 is arranged at the bottom of the valve column 61, a second spring 63 is fixedly connected to the inside of the valve column 61, a second movable valve 64 is fixedly connected to the bottom of the second spring 63, the second movable valve 64 is connected to the inside of the outlet valve 62 in a penetrating mode, and an oil discharge hole 65 is formed in the surface of the valve column 61 in a surrounding mode.

When in specific use: when the plunger 21 is in the right position, the pressure in the working chamber 4 rises, the inlet valve 52 is closed and is higher than the pressure in the outlet valve 62, the second spring 63 in the valve post 61 drives the outlet valve 62 to be opened, the oil in the working chamber 4 enters the valve post 61 through the second movable valve 64, and the oil is discharged through the oil discharge hole 65, so that the oil pumping function is completed.

In this embodiment: a plurality of first mounting grooves 7 and second mounting groove 8 have been seted up to the inner wall of cylinder body 1, and the inside of first mounting groove 7 is inlayed and is equipped with first seal ring 9, and the inside second seal ring 10 that is inlayed and is equipped with of second mounting groove 8.

When in specific use: install first seal ring 9 inside first mounting groove 7, install second seal ring 10 inside second mounting groove 8 for at plunger 21 swing joint in the inside room of cylinder body 1, make cylinder body 1 have good gas tightness, prevent that the gas leakage from causing the inside atmospheric pressure decline of studio 4, influence pump oil efficiency.

In this embodiment: the top of the pump body 3 is provided with an oil outlet 31, and the bottom of the pump body 3 is provided with an oil inlet 32.

When in specific use: the oil inlet hole 32 formed in the bottom of the pump body 3 is convenient for pumping oil into the working chamber 4, and the oil inlet hole 32 formed in the top of the pump body 3 is convenient for pumping oil out of the working chamber 4.

In this embodiment: a connecting hole 11 is formed in one side of the surface of the cylinder body 1, and an input shaft 25 is inserted into the connecting hole 11.

When in specific use: the connecting hole 11 formed in one side of the cylinder body 1 is convenient for the input shaft 25 to be inserted and connected outside the cylinder body 1, so that the input shaft 25 and external power are connected, and the plunger 21 runs to provide power.

Example 2

Referring to FIG. 6: in order to maintain the tightness of the interior of the working chamber 4, the present embodiment is distinguished from embodiment 1 in that: the inner wall of the working chamber 4 is positioned at the bottom of the valve seat 51 and the valve column 61 and is provided with a groove 12, and a sealing ring 13 is embedded in the groove 12.

When in specific use: the groove 12 is formed in the bottoms of the valve seat 51 and the valve column 61 and is embedded with the oil sealing ring 13, so that the joint of the interior of the working chamber 4 and the valve seat 51 and the valve column 61 has better sealing performance, and oil leakage is prevented from affecting the oil pumping efficiency.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a plunger pump hydraulic pressure sealing device, includes cylinder body (1), its characterized in that: a power mechanism (2) is installed inside the cylinder body (1), one side of the cylinder body (1) is fixedly connected with a pump body (3), a working chamber (4) is formed inside the pump body (3), and a first valve body (5) and a second valve body (6) are fixedly installed at two ends of the working chamber (4);

the power mechanism (2) comprises a plunger (21) with a piston connected to the inside of the cylinder body (1), one side of the plunger (21) is fixedly connected with a transmission rod (22), one end of the transmission rod (22) is fixedly connected with a coupler (23), one side of the coupler (23) is fixedly connected with an eccentric wheel (24), and the surface of the eccentric wheel (24) is fixedly connected with an input shaft (25);

a plurality of first mounting grooves (7) and second mounting groove (8) have been seted up to the inner wall of cylinder body (1), the inside of first mounting groove (7) is inlayed and is equipped with first seal ring (9), the inside second seal ring (10) that is inlayed and is equipped with of second mounting groove (8).

2. The plunger pump hydraulic seal device according to claim 1, wherein: first valve body (5) include disk seat (51) of fixed connection in studio (4) bottom, import valve (52) have been seted up at the middle part of disk seat (51), the fixed surface of disk seat (51) is connected with mount (53), the first spring (54) of bottom fixedly connected with of mount (53), the first movable valve (55) of one end fixedly connected with of first spring (54), first movable valve (55) alternate and connect inside import valve (52).

3. The plunger pump hydraulic seal device according to claim 1, wherein: second valve body (6) include valve post (61) of fixed connection at studio (4) top, outlet valve (62) have been seted up to the bottom of valve post (61), inside fixedly connected with second spring (63) of valve post (61), the bottom fixedly connected with second movable valve (64) of second spring (63), second movable valve (64) alternate and connect inside outlet valve (62), oil drain hole (65) have been seted up to the surface encirclement of valve post (61).

4. The plunger pump hydraulic seal device according to claim 1, wherein: the oil outlet (31) is arranged at the top of the pump body (3), and the oil inlet (32) is arranged at the bottom of the pump body (3).

5. The plunger pump hydraulic seal device according to claim 1, wherein: connecting hole (11) have been seted up to surface one side of cylinder body (1), input shaft (25) alternate and connect inside connecting hole (11).

6. The plunger pump hydraulic seal device according to claim 1, wherein: the bottom that the inner wall of studio (4) is located disk seat (51) and valve post (61) all sets up recess (12), recess (12) inside all inlays and is equipped with sealing ring (13).