CN214887646U - Reduce plunger pump of joining in marriage food tray separating force - Google Patents

Abstract

A plunger pump for reducing a separating force of an oil distribution pan. The problem that the existing oil distribution disc is easily scratched is solved. The oil distribution disc comprises an oil distribution disc, a rear cover and a shell, wherein the shell and the rear cover are matched with each other to form a containing cavity, the oil distribution disc is arranged in the containing cavity and comprises a panel, a first oil port and a second oil port are arranged on the panel, the first oil port and the second oil port are arranged on the circumference which takes the center of the oil distribution disc as the circle center, and a first oil drainage groove is formed in the panel of the oil distribution disc, facing the rear cover. The beneficial effects of the utility model are that, set up first draining groove on joining in marriage the food tray to make the entering join in marriage the pressure oil in food tray and the back lid binding face and flow out fast, accelerate the draining of joining in marriage between food tray and the back lid oil mould, increase the coefficient ratio of packing force and separating force, reduce the separating force. The utility model discloses simple structure still has, convenient assembling, and the adaptation wide range, advantages such as long service life.

Description

Reduce plunger pump of joining in marriage food tray separating force

Technical Field

The utility model relates to a plunger pump, concretely relates to reduce plunger pump who joins in marriage food tray separating power.

Background

Plunger pumps are an important device of hydraulic systems and are generally classified into single plunger pumps, horizontal plunger pumps, axial plunger pumps and radial plunger pumps. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. 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 plunger pump generally comprises a shell and a rear cover, wherein an oil distribution disc and a plunger are arranged in the shell and the rear cover, pressure oil at the rear cover enters the plunger through the oil distribution disc and then is discharged through the oil distribution disc by the plunger, the ratio of the pressing force coefficient to the separating force coefficient of the oil distribution disc and the rear cover is 1.02, if the material of the oil distribution disc adopts a steel part or a copper material with higher hardness, no problem exists, but if the oil distribution disc made of an all-copper alloy material with softer hardness is selected, the trace of the scratch of the outer circle can often appear. The phenomenon is mainly caused by that the designed coefficient ratio is too close to 1, so that the key size related to parts cannot be accurately controlled, once the pressure of the separating force is too high, the oil distribution disc is jacked up, the disc lifting phenomenon of the oil distribution disc is caused, and the outer ring of the oil distribution disc is scratched. The separating force is the force of high-pressure oil permeating into the joint surface of the oil distribution disc and the rear cover to force the oil distribution disc and the rear cover to separate. In order to solve the problem, the coefficient ratio of the pressing force to the separating force is increased, the separating force is reduced, and the oil distribution disc is prevented from being scratched.

SUMMERY OF THE UTILITY MODEL

For solving the problem that the current oil distribution disc is easily scratched in the background art, the utility model provides a reduce the plunger pump who joins in marriage oil disc separating force.

The technical scheme of the utility model is that: the utility model provides a reduce plunger pump of joining in marriage food tray separating power, is including joining in marriage food tray, back lid and casing, casing and back lid mutually support and form the holding chamber, join in marriage the food tray and locate the holding intracavity, join in marriage the food tray and include the panel, the panel on be equipped with first hydraulic fluid port and second hydraulic fluid port, first hydraulic fluid port, second hydraulic fluid port locate with the center of joining in marriage the food tray on the circumference of centre of a circle, it is equipped with first draining groove towards the panel of back lid to join in marriage the food tray.

As an improvement of the utility model, the first oil drainage groove locate the outside of first hydraulic fluid port and second hydraulic fluid port.

As a further improvement of the utility model, the first oil drainage groove be the annular setting.

As the utility model discloses a further improvement, the back cover and be equipped with the second draining groove, the second draining groove link to each other with the holding chamber through first draining groove.

As a further improvement of the utility model, the second oil drainage groove has two.

As the utility model discloses a further improvement, join in marriage the food tray on be equipped with the mounting hole, first draining groove be connected with the second draining groove of locating the outside, the mounting hole be connected with the second draining groove of locating the inboard.

As a further improvement of the utility model, the oil distribution disc is provided with a positioning groove, and the rear cover is provided with a positioning pin matched with the positioning groove.

As a further improvement of the utility model, the depth of the first oil drainage groove is 0.1mm-0.3mm, and the width of the first oil drainage groove is not less than 5 mm.

As a further improvement, the panel on be equipped with the amortization groove, the amortization groove locate first hydraulic fluid port to second hydraulic fluid port transition department and second hydraulic fluid port to first hydraulic fluid port transition department.

As a further improvement, the first hydraulic fluid port by a plurality of, a plurality of first hydraulic fluid ports mutually support and be the arc setting, the second hydraulic fluid port be the arc setting.

The beneficial effects of the utility model are that, set up first draining groove on joining in marriage the food tray to make the entering join in marriage the pressure oil in food tray and the back lid binding face and flow out fast, accelerate the draining of joining in marriage between food tray and the back lid oil mould, increase the coefficient ratio of packing force and separating force, reduce the separating force. The utility model discloses simple structure still has, convenient assembling, and the adaptation wide range, advantages such as long service life.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic view of the oil distribution pan of FIG. 1.

Fig. 3 is a schematic structural view in the other direction of fig. 2.

Fig. 4 is a schematic cross-sectional structure of fig. 2.

FIG. 5 is an enlarged cross-sectional view of FIG. 1 at I.

In the figure, 1, an oil distribution disc; 11. a panel; 12. a first oil port; 13. a second oil port; 14. a first oil drainage groove; 15. mounting holes; 16. positioning a groove; 17. a silencing groove; 2. a rear cover; 21. a second oil drainage groove; 22. and a positioning pin.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

fig. 1 and fig. 2-5 show that the plunger pump for reducing the separating force of the oil distribution disc comprises an oil distribution disc 1, a rear cover 2 and a shell, wherein the shell and the rear cover 2 are mutually matched to form a containing cavity, the oil distribution disc 1 is arranged in the containing cavity, the oil distribution disc 1 comprises a panel 11, a first oil port 12 and a second oil port 13 are arranged on the panel, the first oil port 12 and the second oil port 13 are arranged on the circumference which takes the center of the oil distribution disc 1 as the circle center, and a first oil drainage groove 14 is arranged on the panel 11 of the oil distribution disc 1 facing the rear cover. The beneficial effects of the utility model are that, set up first draining groove on joining in marriage the food tray to make the entering join in marriage the pressure oil in food tray and the back lid binding face and flow out fast, accelerate the draining of joining in marriage between food tray and the back lid oil mould, increase the coefficient ratio of packing force and separating force, reduce the separating force. The utility model discloses simple structure still has, convenient assembling, and the adaptation wide range, advantages such as long service life.

The first oil drainage groove 14 is arranged outside the first oil port 12 and the second oil port 13. Specifically, the first oil drainage groove 14 is annularly arranged. Such structure makes the oil convenient of going out on the pump body, and is reliable, and first draining groove can make the pressure oil of joining in marriage in food tray and the back lid binding face flow to the holding chamber fast simultaneously, increases the coefficient ratio of packing force and separating force, reduces the separating force.

And a second oil drainage groove 21 is formed in the rear cover 2, and the second oil drainage groove 21 is connected with the accommodating cavity through the first oil drainage groove 14. Two second draining grooves and the cooperation of first draining groove can reliably reduce the separating power.

The oil distribution disc is characterized in that the number of the second oil drainage grooves 21 is two, the oil distribution disc 1 is provided with a mounting hole 15, the first oil drainage groove 14 is connected with the second oil drainage groove 21 arranged on the outer side, and the mounting hole 15 is connected with the second oil drainage groove 21 arranged on the inner side. Such structure makes the oil of the oil inlet and outlet on the back cover can both be drained fast if getting into join in marriage in food tray and the back cover binding face, and more specifically the oil inlet and outlet of back cover is located between two second draining grooves are located.

The oil distribution disc 1 is provided with a positioning groove 16, and the rear cover 2 is provided with a positioning pin 22 matched with the positioning groove 16. The structure facilitates the installation and fixation of the oil distribution disc.

The depth of the first oil drainage groove 14 is 0.1mm-0.3mm, and the width of the first oil drainage groove 14 is not less than 5 mm. The structure ensures that the product performance is stable and the oil distribution disc is not damaged.

The panel 11 is provided with a silencing groove 17, and the silencing groove 17 is arranged at the transition position of the first oil port 12 to the second oil port 13 and the transition position of the second oil port 13 to the first oil port 12. Specifically speaking, first hydraulic fluid port 12 by a plurality of, a plurality of first hydraulic fluid ports 12 mutually support and be the arc setting, second hydraulic fluid port 13 be the arc setting. The arrangement of the silencing groove enables the oil to be more stable in the high-pressure and low-pressure oil conversion process, and vibration and noise are reduced.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims (10)

1. A plunger pump capable of reducing separating force of an oil distribution disc comprises the oil distribution disc (1), a rear cover (2) and a shell, wherein the shell and the rear cover (2) are matched with each other to form a containing cavity, and the oil distribution disc (1) is arranged in the containing cavity and is characterized in that the oil distribution disc (1) comprises a panel (11), a first oil port (12) and a second oil port (13) are formed in the panel, the first oil port (12) and the second oil port (13) are formed in the circumference with the center of the oil distribution disc (1) as the circle center, and a first oil drainage groove (14) is formed in the panel (11), facing the rear cover, of the oil distribution disc (1).

2. The plunger pump for reducing the separating force of the oil distribution disc as claimed in claim 1, wherein the first oil relief groove (14) is provided outside the first oil port (12) and the second oil port (13).

3. A plunger pump for decreasing a separating force of an oil distribution pan as defined in claim 1, wherein said first oil drain groove (14) is formed in a ring shape.

4. The plunger pump for reducing the separating force of the oil distribution disc as claimed in claim 1, wherein a second oil drainage groove (21) is formed in the rear cover (2), and the second oil drainage groove (21) is connected with the accommodating cavity through the first oil drainage groove (14).

5. A plunger pump for decreasing the separating force of an oil distribution pan as defined in claim 4, wherein said second oil drain groove (21) has two.

6. The plunger pump for reducing the separating force of the oil distribution disc as claimed in claim 5, characterized in that the oil distribution disc (1) is provided with a mounting hole (15), the first oil drainage groove (14) is connected with a second oil drainage groove (21) arranged on the outer side, and the mounting hole (15) is connected with the second oil drainage groove (21) arranged on the inner side.

7. The plunger pump for reducing the separating force of the oil distribution disc as claimed in claim 1, wherein the oil distribution disc (1) is provided with a positioning groove (16), and the rear cover (2) is provided with a positioning pin (22) adapted to the positioning groove (16).

8. The plunger pump for reducing the separating force of the oil distribution pan as claimed in claim 1, wherein the depth of said first oil drainage groove (14) is 0.1mm to 0.3mm, and the width of said first oil drainage groove (14) is not less than 5 mm.

9. The plunger pump for reducing the separating force of the oil distribution disc as claimed in claim 1, wherein the panel (11) is provided with a silencing groove (17), and the silencing groove (17) is formed at the transition position of the first oil port (12) to the second oil port (13) and the transition position of the second oil port (13) to the first oil port (12).

10. The plunger pump for reducing the separating force of the oil distribution disc as claimed in claim 1, wherein the first oil port (12) is formed in plurality, the plurality of first oil ports (12) are matched with each other and arranged in an arc shape, and the second oil port (13) is arranged in an arc shape.

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