CN216767731U

CN216767731U - Plunger and plunger pump

Info

Publication number: CN216767731U
Application number: CN202122943113.3U
Authority: CN
Inventors: 李垄海; 艾显帮
Original assignee: Ningbo Luteng Precision Machinery Co ltd
Current assignee: Ningbo Luteng Precision Machinery Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-06-17
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a plunger and a plunger pump in the technical field of plunger pumps, which comprises a plunger pump body, wherein the plunger pump body comprises a first protective shell and a second protective shell, mounting grooves are respectively formed in the first protective shell and the second protective shell, a connecting shaft is rotatably connected in the mounting grooves, one end of the connecting shaft extends out of the plunger pump body, movable pipelines are symmetrically formed in the plunger pump body, one ends of the movable pipelines, far away from the connecting shaft, are provided with communicating pipelines, one sides of the communicating pipelines, far away from the movable pipelines, are clamped with first connecting rods, one ends of the first connecting rods are fixedly connected with first movable balls, the first connecting rods are sleeved with first compression springs, one ends of the movable pipelines, close to the first movable balls, are movably provided with fixed plugs, the plunger pump shell is in a mode of connecting the first protective shell and the second protective shell through bolts, so that the internal parts of the plunger pump can be conveniently replaced, in addition, the plunger is made of ceramic materials, and the service life of the plunger and the plunger pump is prolonged.

Description

Plunger and plunger pump

Technical Field

The utility model relates to the technical field of plunger pumps, in particular to a plunger and a plunger pump.

Background

Plunger pumps are an important device of hydraulic systems. The volume of the sealed working cavity is changed by the reciprocating motion of the plunger in the cylinder body, so that oil absorption and oil pressing are realized. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions with high pressure, large flow and flow needing regulation, such as hydraulic machines, engineering machinery and ships.

CN201410790010.X discloses a sealing device and plunger pump for plunger pump, sealing device includes the pump cylinder body that has the plunger hole, the plunger portion that one end stretches into the plunger hole, the stuffing box and the compress tightly lid, the stuffing box is the tube-shape, one end of stuffing box stretches into in the seal chamber, the other end is arranged in outside the seal chamber, the seal chamber is the annular cavity between the relative global of plunger portion and plunger hole, the one end that the stuffing box stretches into the seal chamber has annular flange, the outer peripheral face of stuffing box and the inner peripheral face clearance fit of plunger hole, the terminal surface that annular flange faced the plunger pump outside, the space between the inner peripheral face of stuffing box and the outer peripheral face of plunger portion forms the stuffing chamber, there is the sealing member in the stuffing chamber and is compressed tightly by the compress tightly lid; a sealing ring is arranged between the opposite surfaces of the stuffing box and the pump cylinder body; the sealing device is also provided with a dust-proof sealing element and an abrasion-proof sealing element; the sealing device can ensure sealing, is convenient to take out a sealing element, and has the function of preventing dust in air from entering a sealing surface; and a plunger pump provided with the sealing device.

After the plunger pump is used for a long time, internal parts are easy to damage, particularly, a plunger in the plunger pump is easy to damage in the process of long-term repeated movement, and therefore the service life of the plunger pump is influenced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a plunger and a plunger pump to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a plunger pump, includes the plunger pump body, the plunger pump body includes first protecting crust and second protecting crust, the mounting groove has all been seted up in first protecting crust and the second protecting crust, the mounting groove internal rotation is connected with the connecting axle, the one end of connecting axle extends to this external plunger pump, this internal symmetry of plunger pump has seted up movable pipeline, movable pipeline keeps away from the one end of connecting axle has seted up the intercommunication pipeline, the intercommunication pipeline is kept away from one side joint of movable pipeline has the head rod, the first movable ball of the one end fixedly connected with of head rod, first compression spring has been cup jointed to the head rod, movable pipeline is close to the one end movable mounting of first movable ball has the fixed plug.

As a further scheme of the utility model: the grout outlet has been seted up to the upper end of UNICOM's pipeline, just be close to on the plunger pump body the thick liquid hole has been seted up to the one end of connecting axle, the medium enters into the plunger pump originally internally from going into the thick liquid hole, rotate through the connecting axle, it rotates to drive the plunger body, thereby the plunger body rotates and drives the magnet and rotate, when the magnet rotated corresponding movable rod department, because the magnetic ball was repelled with the magnet on the movable rod, the movable rod is under the thrust effect, to the UNICOM pipeline direction removal, thereby make the check valve in the corresponding movable rod close, and make the first compression spring who corresponds fixed stopper department shrink, thereby open the valve, make the medium flow direction grout outlet along a plurality of UNICOM's pipeline of movable pipeline, dual single valve, make the medium flow direction more stable, avoid leaking.

As a still further scheme of the utility model: the movable pipeline is internally and slidably connected with a movable rod, and the movable rod is close to one end of the first movable ball and is fixedly provided with a mounting frame.

As a still further scheme of the utility model: the mounting bracket is kept away from the one end fixedly connected with second compression spring of first activity ball, second compression spring keeps away from the one end fixed mounting of mounting bracket has the second activity ball.

As a still further scheme of the utility model: the through-hole has been seted up in the movable rod, the movable rod is kept away from the one end fixed mounting of second movable ball has the magnetic ball, and through the drive movable rod operation of keeping away from of magnetism repulsion between magnet and the magnetic ball, reduce the contact between movable rod itself and the plunger body to reduce the friction, avoid the wearing and tearing that contact friction repeatedly caused movable rod and plunger body, improve the life of plunger and plunger pump.

A plunger, comprising a plunger body, characterized in that: the plunger body is close to the one end fixed mounting of magnetic ball has the magnet, the magnet with magnetism is repulsive between the magnetic ball, the plunger body is ceramic material, uses ceramic material, increases the plunger body ability of wearing resistance. Thereby increasing the useful life of the plunger body.

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

1. in the utility model, the plunger body is made of ceramic materials through the matching between the magnet and the magnetic ball, the abrasion resistance of the plunger body is improved by using the ceramic materials, and in addition, the contact between the movable rod and the plunger body is reduced through the operation of the movable rod driven by the repulsion of magnetism between the magnet and the magnetic ball and the operation of the movable rod, so that the friction is reduced, the abrasion of the movable rod and the plunger body caused by repeated contact friction is avoided, the service lives of the plunger and the plunger pump are prolonged, and the service life of the plunger body is prolonged.

2. In the utility model, through the matching among the plunger pump body, the first protective shell and the second protective shell, the medium enters the plunger pump body from the grout inlet hole, the plunger body is driven to rotate through the rotation of the connecting shaft, the magnet is driven to rotate through the rotation of the plunger body, when the magnet rotates to the corresponding movable rod, because the magnetic ball on the movable rod is repelled by the magnet, the movable rod moves towards the direction of the communicating pipeline under the action of thrust, thereby causing the one-way valve in the corresponding movable rod to close, and causing the first compression spring at the corresponding fixed stopper to contract, thereby opening the valve to enable the medium to flow to the slurry outlet pipe along the communication pipelines of the movable pipeline, and the double single valve, make the medium flow direction more stable, avoid leaking, this plunger pump body comprises first protecting crust and second protecting crust bolt fastening, and when the plunger pump trouble, convenience of customers dismouting was overhauld, the renewal part.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural cross-sectional view of the present invention;

FIG. 3 is a partial schematic view of the structure of FIG. 2 at A in accordance with the present invention;

FIG. 4 is a partial schematic view of the structure of FIG. 2 at B according to the present invention.

In the figure: 1. a first protective shell; 2. a second protective shell; 3. a connecting shaft; 4. a slurry inlet hole; 5. a slurry outlet; 6. mounting grooves; 7. communicating a pipeline; 8. a movable duct; 9. a plunger body; 10. a first connecting rod; 11. a first compression spring; 12. a fixed plug; 13. a first movable ball; 14. a movable rod; 15. a second movable ball; 16. a mounting frame; 17. a second compression spring; 18. a magnetic ball; 19. a magnet; 20. a through hole; 21. a plunger pump body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a plunger and a plunger pump include a plunger pump body 21, the plunger pump body 21 includes a first protective shell 1 and a second protective shell 2, mounting grooves 6 are respectively formed in the first protective shell 1 and the second protective shell 2, a connecting shaft 3 is rotatably connected in the mounting grooves 6, one end of the connecting shaft 3 extends out of the plunger pump body 21, movable pipelines 8 are symmetrically formed in the plunger pump body 21, a communication pipeline 7 is formed at one end of the movable pipeline 8 far away from the connecting shaft 3, a first connecting rod 10 is clamped at one side of the communication pipeline 7 far away from the movable pipeline 8, one end of the first connecting rod 10 is fixedly connected with a first movable ball 13, the first connecting rod 10 is sleeved with a first compression spring 11, and a fixed plug 12 is movably mounted at one end of the movable pipeline 8 near the first movable ball 13.

The upper end of the communicating pipeline 7 is provided with a slurry outlet hole 5, one end of the plunger pump body 21, which is close to the connecting shaft 3, is provided with a slurry inlet hole 4, a medium enters the plunger pump body 21 from the slurry inlet hole 4, the plunger pump body 9 is driven to rotate through the rotation of the connecting shaft 3, the plunger pump body 9 rotates to drive the magnet 19 to rotate, when the magnet 19 rotates to the corresponding movable rod 14, the movable rod 14 moves towards the communicating pipeline 7 under the thrust action due to the repulsion of the magnetic balls 18 on the movable rod 14 and the magnet 19, so that the check valve in the corresponding movable rod 14 is closed, the first compression spring 11 corresponding to the fixed plug 12 is contracted, the valve is opened, the medium flows towards the slurry outlet pipes along the 8 communicating pipelines 7 of the movable pipelines, and the double single valves enable the medium to flow towards more stable and avoid leakage; a movable rod 14 is connected in the movable pipeline 8 in a sliding manner, and a mounting frame 16 is fixedly mounted at one end of the movable rod 14 close to the first movable ball 13; one end of the mounting frame 16, which is far away from the first movable ball 13, is fixedly connected with a second compression spring 17, and one end of the second compression spring 17, which is far away from the mounting frame 16, is fixedly provided with a second movable ball 15; a through hole 20 is arranged in the movable rod 14, and a magnetic ball 18 is fixedly arranged at one end of the movable rod 14 far away from the second movable ball 15.

A plunger, comprising a plunger body 9, characterized in that: plunger body 9 is close to the one end fixed mounting of magnetic ball 18 has magnet 19, magnetism repels between magnet 19 and the magnetic ball 18, plunger body 9 is ceramic material, use ceramic material, increase plunger body 9 ability of wearing resistance, in addition, through the operation of keeping away from drive movable rod 14 that magnetism repels between magnet 19 and the magnetic ball 18, reduce the contact between movable rod 14 itself and the plunger body 9, thereby reduce friction, avoid the wearing and tearing that contact friction repeatedly caused movable rod 14 and plunger body 9, thereby improve the life of plunger and plunger pump and increase the life of plunger body 9.

The working principle of the utility model is as follows: the medium enters into plunger pump body 21 from going into thick liquid hole 4, rotate through connecting axle 3, it rotates to drive plunger body 9, thereby plunger body 9 rotates and drives magnet 19 and rotate, when magnet 19 rotated corresponding movable rod 14 department, because magnetic ball 18 and magnet 19 repel on the movable rod 14, movable rod 14 is under thrust, 7 directions of communicating pipe move, thereby make the check valve in the corresponding movable rod 14 close, and make the first compression spring 11 who corresponds fixed stopper 12 department shrink, thereby open the valve, make the medium follow 8 communicating pipe 7 flow direction play thick liquid pipes of movable pipe, dual single valve, make the medium flow direction more stable, avoid leaking, this plunger pump body 21 comprises first protecting crust 1 and second protecting crust 2 bolt fastening, when the plunger pump trouble, make things convenient for the user's dismouting to overhaul, the replacement part. Plunger body 9 is ceramic material, uses ceramic material, increases plunger body 9 ability of resistance to wears, in addition, through the operation of drive movable rod 14 that keeps away from of magnetism repulsion between magnet 19 and the magnetic ball 18, reduces the contact between movable rod 14 itself and the plunger body 9 to reduce the friction, avoid the wearing and tearing that contact friction repeatedly caused to movable rod 14 and plunger body 9, thereby improve the life of plunger and plunger pump and increase plunger body 9's life.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A plunger pump, comprising a plunger pump body (21), characterized in that: the plunger pump body (21) comprises a first protective shell (1) and a second protective shell (2), the first protective shell (1) and the second protective shell (2) are both provided with mounting grooves (6), a connecting shaft (3) is rotatably connected in the mounting groove (6), one end of the connecting shaft (3) extends out of the plunger pump body (21), the plunger pump body (21) is internally and symmetrically provided with movable pipelines (8), one end of each movable pipeline (8) far away from the connecting shaft (3) is provided with a communicating pipeline (7), a first connecting rod (10) is clamped on one side of the communicating pipeline (7) far away from the movable pipeline (8), one end of the first connecting rod (10) is fixedly connected with a first movable ball (13), the first connecting rod (10) is sleeved with a first compression spring (11), and one end of the movable pipeline (8) close to the first movable ball (13) is movably provided with a fixed plug (12).

2. A plunger pump according to claim 1, characterized in that: the upper end of the communicating pipeline (7) is provided with a slurry outlet hole (5), and one end of the plunger pump body (21) close to the connecting shaft (3) is provided with a slurry inlet hole (4).

3. A plunger pump according to claim 1, characterized in that: the movable pipeline (8) is internally and slidably connected with a movable rod (14), and the movable rod (14) is close to one end of the first movable ball (13) and is fixedly provided with an installation frame (16).

4. A plunger pump according to claim 3, characterized in that: keep away from in mounting bracket (16) the one end fixedly connected with second compression spring (17) of first activity ball (13), second compression spring (17) are kept away from the one end fixed mounting of mounting bracket (16) has second activity ball (15).

5. A plunger pump according to claim 4, characterized in that: a through hole (20) is formed in the movable rod (14), and a magnetic ball (18) is fixedly mounted at one end, far away from the second movable ball (15), of the movable rod (14).

6. A plunger for use in a plunger pump as claimed in claim 5, comprising a plunger body (9), characterized in that: one end of the plunger body (9) close to the magnetic ball (18) is fixedly provided with a magnet (19), the magnet (19) and the magnetic ball (18) repel each other in a magnetic manner, and the plunger body (9) is made of ceramic materials.