CN220204100U - Variable pump with flow control device - Google Patents

Abstract

The utility model discloses a variable pump with a flow control device, which comprises a variable pump body and a flow dividing mechanism, wherein a liquid inlet pipe and a liquid outlet pipe are arranged on the variable pump body, one side of the liquid outlet pipe is connected with a guide cylinder in a sealing way, an inner disc I, an inner disc II and a flow blocking disc are fixed in the guide cylinder, a compression bar capable of transversely moving is inserted in the center of the inner disc II, a sealing disc is fixed at the inner end of the compression bar, a spring is sleeved on the compression bar, and a threaded rod is inserted in the center of the inner disc I. The flow guide device has the beneficial effects that the compression bar, the sealing disc and the spring combination are arranged in the flow guide cylinder, the sealing disc is tightly attached to the flow blocking disc by utilizing the spring to extrude, when the flow is stable, the flow guide hole on the flow blocking disc is automatically sealed, when a pipeline is blocked, the output liquid can automatically rush out the sealing disc when the variable pump bears the load, a part of the output liquid is split, the flow and the hydraulic pressure are reduced, the load born by the variable pump is reduced, the stable work of the variable pump is ensured, the service life is prolonged, and the practicability is improved.

Description

Variable pump with flow control device

Technical Field

The utility model relates to the field of variable pumps, in particular to a variable pump with a flow control device.

Background

The variable pump is a pump with variable displacement, can be a single-acting vane pump, a radial plunger pump or an axial plunger pump, is widely applied to the field of hydraulic transmission of metallurgy, mines, engineering machinery, ships, civil aviation ground equipment and the like, is provided with a three-way flow valve for pressure relief, has a complex structure, is high in price and is difficult to detach and overhaul, and the variable pump is a ubiquitous technical problem of the existing variable pump and is also a problem which needs to be solved urgently by personnel in the field.

To solve the above problems, we propose a variable displacement pump with a flow control device, which is improved against the shortcomings of the prior art.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provides a variable pump with a flow control device, and provides the following technical scheme for solving the technical problems:

the utility model relates to a variable pump with a flow control device, which comprises a variable pump body and a flow dividing mechanism arranged on the variable pump body;

be provided with feed liquor pipe and drain pipe on the variable displacement pump body, be connected with reposition of redundant personnel mechanism on the drain pipe, reposition of redundant personnel mechanism includes draft tube, interior dish one, interior dish two, flow blocking disc, depression bar, sealing disc, spring and threaded rod, one side sealing connection of drain pipe has the draft tube, the draft tube internal fixation has interior dish one, interior dish two and flow blocking disc, but the center department of interior dish two inserts and is equipped with lateral shifting's depression bar, but the inner of depression bar is fixed with sealing disc, just still the cover is equipped with the spring on the depression bar, the center department of interior dish one inserts and is equipped with the threaded rod.

Preferably, the outer end of the guide cylinder is opened, the bottom of the guide cylinder is also communicated with an infusion tube, and the infusion tube is positioned between the inner disk II and the choke disk.

Preferably, rubber pads are adhered on the facing surfaces of the sealing disc and the choke disc, and a diversion hole is further formed in the center of the choke disc.

Preferably, two ends of the spring are respectively fixed on the inner disc II and the sealing disc, and the sealing disc is tightly attached to the choke plate.

Preferably, the inner end of the threaded rod is directed towards the outer end of the compression bar.

Preferably, a sealing ring is also adhered to the edge of the sealing disc, and the sealing ring is tightly attached to the inner wall of the guide cylinder.

Compared with the prior art, the utility model has the following beneficial effects:

through being provided with depression bar, sealing disk and spring combination in the draft tube, utilize the spring extrusion sealing disk to hug closely on the flow blocking disk, when the flow is stable, the water conservancy diversion hole on the flow blocking disk is sealed automatically, when the pipeline is stopped up, the flow increases, the hydraulic pressure increases, when the variable pump bears the load, the sealing disk can be opened in automatic dashing of the liquid of output, will partly export liquid and split out, reduce flow and hydraulic pressure, reduce the load that the variable pump bears, guarantee the stable work of variable pump, improve life, adopt simple structure, the low price, the reposition of redundant personnel mechanism of convenient maintenance replaces current pressure release tee bend flow valve, can realize flow automatic control, when protecting the variable pump and not bear the load, also can reduce economic investment, solve the technical defect that exists in the prior art, and reach corresponding technological effect, thereby improve the practicality.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a structure of a choke plate according to the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 1. a variable displacement pump body; 2. a liquid inlet pipe; 3. a liquid outlet pipe; 4. a guide cylinder; 5. an inner disk I; 6. an inner disk II; 7. a choke plate; 8. a compression bar; 9. a sealing plate; 10. a spring; 11. a threaded rod; 12. an infusion tube; 13. a rubber pad; 14. and a deflector hole.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples

As shown in fig. 1-3, a variable pump with a flow control device comprises a variable pump body 1 and a diversion mechanism arranged on the variable pump body 1 and used for diversion and pressure relief to protect the variable pump, a liquid inlet pipe 2 and a liquid outlet pipe 3 are arranged on the variable pump body 1 and used for feeding in and feeding out liquid, the liquid outlet pipe 3 is connected with the diversion mechanism, the diversion mechanism comprises a guide cylinder 4, an inner disk 5, an inner disk 6, a flow blocking disk 7, a pressure rod 8, a sealing disk 9, a spring 10 and a threaded rod 11, one side of the liquid outlet pipe 3 is in sealing connection with the guide cylinder 4, the guide cylinder 4 is internally fixed with the inner disk 5, the inner disk 6 and the flow blocking disk 7, a pressure rod 8 capable of transversely moving is inserted in the center of the inner disk 6, the inner end of the pressure rod 8 is fixed with the sealing disk 9 and used for sealing the flow guiding hole 14, the spring 10 is sleeved on the pressure rod 8, the pressure rod 8 is convenient to transversely move, whether the sealing disk 9 can be opened and sealed the flow guiding hole 14 is realized, the center of the inner disk 5 is inserted with the guide cylinder 11, the inner end of the guide cylinder 11 is directly opposite to the pressure rod 8, the end of the pressure rod 8 can be opened, the flow blocking mechanism can be opened to the flow blocking disk 12 is positioned at the bottom of the guide cylinder 4 or the flow blocking disk 4, and the liquid can be communicated with the bottom of the infusion tube through the flow blocking disk 12, and the flow blocking mechanism is also opened through the flow blocking disk 12.

In this embodiment, rubber pads 13 are adhered to the facing surfaces of the sealing disk 9 and the choke disk 7, so that the tightness is improved, a diversion hole 14 is further formed in the center of the choke disk 7, a sealing ring is adhered to the edge of the sealing disk 9, the sealing ring is tightly adhered to the inner wall of the guide cylinder 4, the tightness is further improved, two ends of the spring 10 are respectively fixed to the inner disk 2 and the sealing disk 9, the sealing disk 9 is tightly adhered to the choke disk 7, the increase of liquid pressure is ensured, and the diversion hole 14 can be flushed when the variable pump body 1 bears load for pressure relief.

The principle and the advantages of the utility model are that: when the variable pump body 1 works, liquid enters the variable pump body 1 through the liquid inlet pipe 2 and flows out through the liquid outlet pipe 3 in a pressurizing way, when the work load of the variable pump body 1 is increased due to the blockage of a conveying pipe connected to the liquid outlet pipe 3 or other reasons, the liquid pressure in the liquid outlet pipe 3 is also increased along with the increase, at the moment, the liquid rushes out of the sealing disc 9, the spring 10 is compressed, the sealing disc 9 and the pressure rod 8 move towards the direction of the threaded rod 11, the flow guide hole 14 on the flow blocking disc 7 is opened, the liquid flows into the flow guide cylinder 4 through the flow guide hole 14, namely, the liquid is discharged from the liquid conveying pipe 12, the pressure release control is realized, after the liquid pressure is stabilized, the spring 10 is tightly attached to the flow blocking disc 7 by utilizing the self elasticity, the flow guide hole 14 is blocked, the liquid does not flow guide out any more, the rotatable threaded rod 11 adjusts the end position of the pressure rod, the inner end of the pressure rod is extruded on the flow blocking mechanism 8, the flow blocking mechanism can be closed, the flow guide rod is not separated, the pressure rod 11 can be automatically split when the inner end of the pressure rod and the pressure rod 8 has a space between the pressure rod 8, the pressure release valve is realized, the automatic split, the structure is simple, the cost is low, the economical and the cost of the existing technology can be effectively realized, the economical and the economical efficiency is easy to realize, the cost is improved, the cost is high, the technology and the device is better, the technology can be better, and the economical and the technology and can realize and the advantages and can realize and better and control.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A variable pump with a flow control device comprises a variable pump body (1) and a flow dividing mechanism arranged on the variable pump body (1);

the method is characterized in that: be provided with feed liquor pipe (2) and drain pipe (3) on variable displacement pump body (1), be connected with reposition of redundant personnel mechanism on drain pipe (3), reposition of redundant personnel mechanism includes draft tube (4), interior dish one (5), interior dish two (6), flow blocking dish (7), depression bar (8), sealing disk (9), spring (10) and threaded rod (11), one side sealing connection of drain pipe (3) has draft tube (4), draft tube (4) internal fixation has interior dish one (5), interior dish two (6) and flow blocking dish (7), but the center department of interior dish two (6) inserts and is equipped with lateral shifting's depression bar (8), the inner of depression bar (8) is fixed with sealing disk (9), just still the cover is equipped with spring (10) on depression bar (8), the center department of interior dish one (5) inserts and is equipped with threaded rod (11).

2. The variable displacement pump with flow control device of claim 1, wherein: the outer end of the guide cylinder (4) is opened, the bottom of the guide cylinder (4) is also communicated with a transfusion tube (12), and the transfusion tube (12) is positioned between the inner disk II (6) and the choke disk (7).

3. The variable displacement pump with flow control device of claim 1, wherein: rubber pads (13) are adhered to the facing surfaces of the sealing disc (9) and the choke disc (7), and a diversion hole (14) is formed in the center of the choke disc (7).

4. The variable displacement pump with flow control device of claim 1, wherein: the two ends of the spring (10) are respectively fixed on the inner disc II (6) and the sealing disc (9), and the sealing disc (9) is tightly attached to the choke disc (7).

5. The variable displacement pump with flow control device of claim 1, wherein: the inner end of the threaded rod (11) is directly opposite to the outer end of the pressing rod (8).

6. The variable displacement pump with flow control device of claim 1, wherein: the edge of the sealing disc (9) is also fixedly adhered with a sealing ring, and the sealing ring is tightly attached to the inner wall of the guide cylinder (4).