CN212867791U

CN212867791U - Circumferential plunger pump

Info

Publication number: CN212867791U
Application number: CN202021614043.6U
Authority: CN
Inventors: 吴泽华; 吴创延; 吴泽鱼
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-04-02
Anticipated expiration: 2030-08-05

Abstract

The utility model provides a circumference plunger pump, it includes the pump body and locates the rotor spindle on the pump body, is equipped with annular oil duct in the pump body, is equipped with the plunger of two circumference equipartitions in the oil duct at least, and the plunger is connected with the rotor spindle and rotates in order to synchronize, is equipped with the oil circuit of two sets of circumference equipartitions on the oil duct at least, and the quantity and the plunger quantity of oil circuit are unanimous, and every group oil circuit includes an oil inlet and an oil-out, be equipped with on the pump body and block the valve with plunger quantity is unanimous, block valve circumference equipartit. The integral structure of the circumferential plunger pump is higher in oil absorption and oil pressing efficiency than that of the existing axial and radial plunger pumps, multiple groups of oil ways can be arranged on the circumferential plunger pump according to actual size and needs, and the circumferential plunger pump also has the advantages of being simple in structure and easy to install and disassemble.

Description

Circumferential plunger pump

[ technical field ] A method for producing a semiconductor device

The utility model relates to a plunger pump field especially relates to a circumference plunger pump.

[ background of the invention ]

The plunger pump is an important device of a hydraulic system, changes the volume of an oil passage for sealing work by means of reciprocating motion of a plunger in a pump body to realize oil absorption and oil pressing, and has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. The plunger pumps on the market at present have two types, namely an axial plunger pump and a radial plunger pump, but the two types of plunger pumps have more complex structures and higher manufacturing and manufacturing costs. Therefore, there is a need for further improvements to existing plunger pumps.

[ Utility model ] content

The utility model aims at overcoming the above-mentioned problem, we provide a circumference plunger pump, this plunger pump simple structure, manufacturing cost are relatively lower to press oil and oil absorption efficiency to be higher.

In order to realize the above object, the utility model provides a circumference plunger pump, it includes the pump body and locates the rotor spindle on the pump body, is equipped with annular oil duct in the pump body, is equipped with the plunger of two circumference equipartitions in the oil duct at least, and the plunger is connected with the rotor spindle and rotates in order synchronous, is equipped with the oil circuit of two sets of circumference equipartitions on the oil duct at least, and the quantity and the plunger quantity of oil circuit are unanimous, and every group oil circuit includes an oil inlet and an oil-out, be equipped with on the pump body with plunger quantity unanimously block the valve, block valve circumference equipartit.

In one or more embodiments, the rotor spindle includes a disc-shaped connecting portion coaxially disposed, and the plunger is connected to an outer circumferential wall of the disc-shaped connecting portion.

In one or more embodiments, the disc-shaped connecting portion is provided with a sealing ring on both the upper end surface and the lower end surface.

In one or more embodiments, a copper sleeve or a bearing is arranged between the outer wall of the rotor spindle and the wall of the pump body cavity.

In one or more embodiments, the pump body includes a base and an upper seat, the base is provided with a lower oil duct, the upper seat is provided with an upper oil duct, the lower oil duct is connected with the upper oil duct in a matching manner to form the oil duct, and the base and the upper seat are fixedly connected through a first bolt and a first nut.

In one or more embodiments, the pump body is provided with a sealing cover at the extending end of the rotor spindle, a sealing block is arranged between the sealing cover and the pump body, and the sealing cover and the pump body are connected through a second bolt to compress the sealing block.

Compared with the prior art, the utility model the effect that exists is: the integral structure of the circumferential plunger pump is higher in oil absorption and oil pressing efficiency than that of the existing axial and radial plunger pumps, multiple groups of oil ways can be arranged on the circumferential plunger pump according to actual size and needs, and the circumferential plunger pump also has the advantages of being simple in structure and easy to install and disassemble.

[ description of the drawings ]

Fig. 1 is a cross-sectional view of a circumferential plunger pump according to an embodiment of the present invention;

fig. 2 is an exploded view of a circumferential plunger pump according to an embodiment of the present invention;

fig. 3 is an external structural schematic view of a circumferential plunger pump according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 at another angle;

fig. 5 is a schematic structural view of the rotor spindle of the embodiment of the present invention before rotation;

fig. 6 is a schematic structural view of the embodiment of the present invention after the rotor shaft rotates (absorbs oil and presses oil).

[ detailed description ] embodiments

In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

Please refer to fig. 1-6, the utility model provides a circumference plunger pump, it includes the pump body and locates rotor spindle 1 on the pump body, is equipped with annular oil duct 2 in the pump body, is equipped with plunger 3 of two circumference equipartitions in the oil duct at least, and plunger 3 is connected with rotor spindle 1 and rotates in order to the synchronization, is equipped with the oil circuit of two sets of circumference equipartitions on the oil duct 2 at least, and the quantity of oil circuit is unanimous with plunger 3 quantity, and every group oil circuit includes an oil inlet 4 and an oil-out 5, be equipped with on the pump body and block valve 6 with plunger 3 quantity unanimously and block valve 6 circumference equipartition setting and be used for blocking oil duct 2, block valve.

In the embodiment, two blocking valves 6, two groups of oil ways and two plungers 3 are arranged, during operation, when the rotor spindle 1 rotates clockwise, after the plunger 3 synchronously leaves the blocking valve 6 along with the rotor spindle 1, the blocking valve 6 extends out and cuts off the oil duct 2 into two equal parts, the plunger 3 firstly moves along the oil duct 2 through the oil inlet 4 and along the circumferential direction to advance towards the oil outlet 5, at the moment, oil between the oil inlet 4 and the oil outlet 5 can be discharged from the oil outlet 5 to the oil inlet 4 by the plunger 3, the volume of the plunger 3 is changed from small to large after passing through the oil inlet 4, new oil is continuously sucked into the oil inlet 4, when the plunger 3 moves to the blocking valve 6, the blocking valve 6 is recycled, the plunger 3 moves to the position blocked by the blocking valve 6, so as to complete a circulating oil sucking and pressing process, and the steps can be continuously repeated, And (5) pressing oil. Because this embodiment is provided with two sets of oil circuits, therefore when rotor spindle 1 rotates, two sets of oil circuits all can inhale oil, press oil, and efficiency is very high. In addition, three or four plunger pistons 3, three or four blocking valves 6, and three or four oil passages 6, four or four oil passages N can be arranged by analogy, so that oil absorption and oil compression of the three oil passages and the four oil passages N can be realized simultaneously.

The rotor spindle 1 comprises a disc-shaped connecting part 7 which is coaxially arranged, the plunger 3 is connected to the outer peripheral wall of the disc-shaped connecting part 7, the rotor spindle 1 can conveniently drive the plunger 3 to synchronously rotate, in addition, under the condition that the size of the oil duct 2 is not changed, the diameter of the rotor spindle 1 can be made smaller on the premise of ensuring enough strength, so that certain production cost is saved,

the upper end face and the lower end face of the disc-shaped connecting portion 7 are provided with sealing rings 8 respectively to enhance the sealing performance of the oil duct 2 and prevent oil in the oil duct 2 from overflowing to the shaft body of the rotor spindle 1 along the disc-shaped connecting portion 7.

Be equipped with copper sheathing 9 or bearing between rotor spindle 1's the outer wall and the pump body cavity wall, this embodiment adopts copper sheathing 9, and copper sheathing 9's bearing force is better than the bearing, and hardness is high and the wearability is fabulous, difficult emergence seizure phenomenon, and copper sheathing 9's effect is the same with the bearing effect, and supplementary rotor spindle 1 rotates, avoids rotor spindle 1 to appear eccentric rotation.

The pump body includes base 10 and seat of honour 11, and base 10 is equipped with down the oil duct, and seat of honour 11 is equipped with the oil duct, and lower oil duct is connected in order to form with last oil duct cooperation the oil duct 2, base 10 and seat of honour 11 are connected fixedly through first bolt 12 and first nut 13, and base 10 and seat of honour 11 all open the hole site that runs through in order to install first bolt 12, adopt the bolt to be connected with the fixed mode of being connected of nut, are favorable to the installation, dismantle, are convenient for to produce manufacturing earlier stage, also make things convenient for later stage to dismantle the maintenance.

The pump body is provided with a sealing cover 14 at the extending end of the rotor spindle 1, a sealing block 15 is arranged between the sealing cover 14 and the pump body, hole sites for the rotor spindle to pass through are formed in the sealing cover 14 and the sealing block 15, and the sealing cover 14 and the pump body are connected through a second bolt 16 to compress the sealing block 15 so as to enhance the sealing performance between the rotor spindle 1 and the pump cavity.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.

Claims

1. A circumferential plunger pump, comprising: the oil-way-type oil pump comprises a pump body and a rotor main shaft (1) arranged on the pump body, wherein an annular oil way (2) is arranged in the pump body, at least two plungers (3) are circumferentially and uniformly distributed in the oil way, the plungers (3) are connected with the rotor main shaft (1) to rotate synchronously, at least two groups of circumferentially and uniformly distributed oil ways are arranged on the oil way (2), the number of the oil ways is consistent with that of the plungers (3), each group of oil ways comprises an oil inlet (4) and an oil outlet (5), a blocking valve (6) is arranged on the pump body in a manner of consistent with that of the plungers (3), and the circumferentially and uniformly distributed blocking valve.

2. A circumferential piston pump according to claim 1, characterized in that: the rotor spindle (1) comprises a disc-shaped connecting part (7) which is coaxially arranged, and the plunger (3) is connected to the outer peripheral wall of the disc-shaped connecting part (7).

3. A circumferential piston pump according to claim 2, characterized in that: and the upper end surface and the lower end surface of the disc-shaped connecting part (7) are both provided with sealing rings (8).

4. A circumferential piston pump according to claim 2, characterized in that: and a copper sleeve (9) or a bearing is arranged between the outer wall of the rotor spindle (1) and the wall of the pump body cavity.

5. A circumferential piston pump according to any of claims 1-4, characterized in that: the pump body includes base (10) and upper bracket (11), and base (10) are equipped with down the oil duct, and upper bracket (11) are equipped with the oil duct, and lower oil duct is connected in order to form with last oil duct cooperation oil duct (2), base (10) and upper bracket (11) are connected fixedly through first bolt (12) and first nut (13).

6. A circumferential piston pump according to any of claims 1-4, characterized in that: the pump body is located the extension end department of rotor main shaft (1) and is equipped with sealed lid (14), is equipped with between sealed lid (14) and the pump body and seals piece (15), seals lid (14) and the pump body passes through second bolt (16) to be connected in order to compress tightly sealed piece (15).