CN216714692U - Bidirectional cycloid pump based on special eccentric ring - Google Patents

Abstract

The utility model relates to the technical field of cycloid pumps and discloses a bidirectional cycloid pump based on a special eccentric ring, which comprises a hole clamp spring, wherein an oil seal is arranged on the outer wall of the hole clamp spring, a pump body is arranged on the outer wall of the oil seal, a first oil-free bushing is arranged on the inner wall of the pump body, a spline shaft is arranged on one side, away from the pump body, of the first oil-free bushing, a round key is arranged on the inner wall of the spline shaft, a second oil-free bushing is arranged on the outer wall of the spline shaft, an eccentric ring is arranged on the inner wall of the pump body, a rotor is arranged on the inner wall of the eccentric ring, a second cylindrical pin is arranged on the inner wall of the rotor, and a first cylindrical pin is arranged on the inner wall of the eccentric ring. This two-way cycloid pump based on special eccentric ring through design the oil inlet and outlet in the front of big lid for the pump body is compacter, and occupation space is littleer, especially in limited operation space, has avoided because of the oil circuit bend, narrow down the noise that causes, suction decline or the oil extraction phenomenon such as not smooth, changes the pipeline simultaneously and maintains.

Description

Bidirectional cycloid pump based on special eccentric ring

Technical Field

The utility model relates to the technical field of cycloid pumps, in particular to a bidirectional cycloid pump based on a special eccentric ring.

Background

The cycloid pump realizes oil absorption and pressure oil absorption by utilizing the change of sealing volume between teeth, and consists of an oil distribution disc, an outer rotor, an inner rotor eccentrically arranged in a pump body and the like.

At present, in a limited operation space, the design of a left oil inlet and a right oil inlet can cause the oil inlet and outlet pipelines to be bent and narrowed, so that the faults of noise emission, reduced suction, unsmooth oil discharge and the like of equipment are easily caused, the oil pump runs in a single direction and requires the running direction of a motor to be consistent with that of the oil pump, and the faults of pump body damage, oil leakage and the like are easily caused in a reverse direction, so that higher requirements are put forward for equipment operators, and the equipment user needs to invest higher maintenance cost.

Therefore, we have provided a two-way cycloid pump based on special eccentric ring, openly make the pump body compacter through design the oil inlet and outlet in big lid, occupation space is littleer and the design of cycloid pump two-way reversible, this cycloid pump not only can avoid bending because of the oil circuit, the noise that the narrowing caused, suction decline or the oil extraction phenomenon such as not smooth, change and maintain the pipeline, can also avoid the risk of oil pump or equipment damage because of the motor reversal causes, make the operation more simple and convenient, it is more economic to maintain, it is safer to use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a bidirectional cycloid pump based on a special eccentric ring, which can avoid the phenomena of noise, reduced suction force or unsmooth oil discharge and the like caused by bending and narrowing of an oil way, is easier to maintain a pipeline, can also avoid the risk of damage to an oil pump or equipment caused by the reverse rotation of a motor, the operation is simpler and more convenient, the maintenance is more economic, the use is safer, and the like, solves the problems that the oil inlet and outlet pipelines are bent and narrowed, the equipment generates noise, the suction force is reduced, the oil discharge is not smooth and the like due to the design of the left oil inlet and the right oil outlet in the limited operation space at present, the oil pump runs in one direction, the running direction of the motor is required to be consistent with that of the oil pump, and faults such as pump body damage, oil leakage and the like are easily caused if the motor runs in the reverse direction, higher requirements are put on equipment operators, so that higher maintenance cost needs to be invested on equipment users.

(II) technical scheme

In order to avoid the phenomena of noise, reduced suction or unsmooth oil discharge and the like caused by bending and narrowing of an oil way, maintain a pipeline more easily, avoid the risk of damage to an oil pump or equipment caused by the reverse rotation of a motor, and achieve the purposes of simpler operation, more economic maintenance and safer use, the utility model provides the following technical scheme: the utility model provides a two-way cycloid pump based on special eccentric ring, includes the hole jump ring, the outer wall of hole jump ring is provided with the oil blanket, the outer wall of oil blanket is provided with the pump body, the inner wall of the pump body is provided with first oil-free bush, one side that the pump body was kept away from to first oil-free bush is provided with the integral key shaft, the inner wall of integral key shaft is provided with the round key, the outer wall of integral key shaft is provided with the second oil-free bush, the inner wall of the pump body is provided with the eccentric ring, the inner wall of eccentric ring is provided with the rotor, the inner wall of rotor is provided with the second cylindric lock, the inner wall of eccentric ring is provided with first cylindric lock, the outer wall of first cylindric lock is provided with big lid, the inner wall swing joint of big lid has hexagon socket screw.

Preferably, the eccentric ring is designed to be eccentric, the outer wall is high on one side and low on the other side, the eccentric ring is arranged in the cavity of the pump body, the rotor is arranged in the eccentric ring, the large cover is covered, a sealed volume cavity is formed between the rotors, and the volume cavity changes along with the continuous rotation of the inner rotor, so that the eccentric ring is convenient to mount and fix.

Preferably, the rotor consists of an inner rotor and an outer rotor, and the inner wall of the rotor is provided with the pump shaft, so that the rotor can better rotate on the inner wall of the pump body.

Preferably, the inner wall of the large cover is provided with a first mounting groove, and the diameter and the size of the inner wall of the first mounting groove are matched with the diameter and the size of the outer wall of the first cylindrical pin, so that the first cylindrical pin is ensured to be mounted on the inner wall of the large cover to be more fit.

Preferably, the inner wall of the big cover is provided with an inner hexagonal screw groove, the shape and the size of the inner wall of the inner hexagonal screw groove are matched with the shape and the size of the outer wall of the inner hexagonal screw, and the inner wall of the big cover can move more smoothly when the inner hexagonal screw is rotated by a tool.

(III) advantageous effects

Compared with the prior art, the utility model provides a bidirectional cycloid pump based on a special eccentric ring, which has the following beneficial effects:

1. this two-way cycloid pump based on special eccentric ring through design the oil inlet and outlet in the front of big lid for the pump body is compacter, and occupation space is littleer, especially in limited operation space, has avoided because of the oil circuit bend, narrow down the noise that causes, suction decline or the oil extraction phenomenon such as not smooth, changes the pipeline simultaneously and maintains.

2. This two-way cycloid pump based on special eccentric ring through the design of the two-way reversible of cycloid pump, has avoided the risk of oil pump or equipment damage because of the motor reversal causes to make the operation more simple and convenient, maintain more economic, use safelyr.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the inside of the eccentric ring of the present invention;

FIG. 4 is a schematic view of the large cap and the first cylindrical pin of the present invention;

FIG. 5 is a schematic view of the connection between the large lid and the socket head cap screw according to the present invention.

In the figure: 1. a hole clamp spring; 2. oil sealing; 3. a pump body; 4. a first oilless bushing; 5. a spline shaft; 6. an eccentric ring; 7. a rotor; 8. a first cylindrical pin; 9. a second oilless bushing; 10. a large cover; 11. a hexagon socket head cap screw; 12. a round key; 13. and a second cylindrical pin.

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. 1-5, a bidirectional cycloid pump based on a special eccentric ring comprises a hole clamp spring 1, an oil seal 2 is arranged on the outer wall of the hole clamp spring 1, a pump body 3 is arranged on the outer wall of the oil seal 2, a first oil-free bushing 4 is arranged on the inner wall of the pump body 3, a spline shaft 5 is arranged on one side, away from the pump body 3, of the first oil-free bushing 4, a round key 12 is arranged on the inner wall of the spline shaft 5, a second oil-free bushing 9 is arranged on the outer wall of the spline shaft 5, an eccentric ring 6 is arranged on the inner wall of the pump body 3, the eccentric ring 6 is in an eccentric design, one side of the outer wall is high, the other side is low, the eccentric ring 6 is arranged in a cavity of the pump body 3, a rotor 7 is arranged in the eccentric ring 6, a large cover 10 is covered, a sealed volume cavity is formed between the rotors 7, the volume cavity changes along with the continuous rotation of the inner rotor so as to install and fix the eccentric ring 6, the rotor 7 is provided with the rotor, the rotor 7, the inner rotor is composed of an outer rotor and an outer rotor, the inner wall of rotor 7 is provided with the pump shaft, so that rotor 7 better rotates at the inner wall of pump body 3, the inner wall of rotor 7 is provided with second cylindric lock 13, the inner wall of eccentric ring 6 is provided with first cylindric lock 8, the outer wall of first cylindric lock 8 is provided with big lid 10, the inner hexagonal screw groove has been seted up to the inner wall of big lid 10, the inner wall shape of inner hexagonal screw groove, size and the outer wall shape of inner hexagonal screw 11, the size phase-match, when utilizing instrument rotatory inner hexagonal screw 11, more smooth and easy at the inner wall motion of big lid 10, first mounting groove has been seted up to the inner wall of big lid 10, the inner wall diameter of first mounting groove, the size is with the outer wall diameter of first cylindric lock 8, size looks adaptation, it fits more at the inner wall of big lid 10 to ensure that first cylindric lock 8 installs, the inner wall swing joint of big lid 10 has inner hexagonal screw 11.

The working principle is as follows: when the bidirectional cycloid pump based on the special eccentric ring is used, when the volume cavity on one side in the inner wall of the pump body is enlarged, the pressure intensity is reduced, so that suction is generated and the pump body becomes an oil inlet end; the volume cavity on the other side becomes smaller, so that positive pressure is generated and becomes an oil discharge end; the conventional oil pump advances from left to right when rotating forward, advances from right to left when rotating backward, and two-way cycloid pump is because unique eccentric ring 6 design has been increased, and eccentric ring 6 receives the retardation of first cylindric lock 8 in big lid 10 inner wall, only can one hundred eighty degrees reciprocating rotation, make no matter how the direction of operation of inner rotor, rotor 7 volume chamber all keeps fixed increase on one side, the fixed diminishes on the other side, form fixed business turn over oil direction, oil pump forward or reverse rotation, the oil circuit all keeps advancing from left to right and goes out, be two-way cycloid pump, this cycloid pump not only can avoid because of the oil circuit bends, the noise that the narrowing caused, suction descends or the oil extraction phenomenon such as unsmooth, change the pipeline and maintain, can also avoid the risk of oil pump or equipment damage because of the motor reversal, make the operation more simple and convenient, it is more economical to maintain, it is safer to use.

To sum up, this two-way cycloid pump based on special eccentric ring through with the oil inlet and outlet design in the front of big lid 10 for the pump body 3 is compacter, and occupation space is littleer, especially in limited operation space, avoided bending, the noise that narrows down and cause, suction decline or the oil extraction phenomenon such as not smooth because of the oil circuit, change the pipeline and maintain simultaneously, the two-way reversible design of rethread cycloid pump has avoided the risk of oil pump or the equipment damage that causes because of the motor reversal, thereby make the operation simpler and more convenient, maintain more economy, it is safer to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a two-way cycloid pump based on special eccentric ring, includes hole jump ring (1), its characterized in that: an oil seal (2) is arranged on the outer wall of the hole clamp spring (1), a pump body (3) is arranged on the outer wall of the oil seal (2), a first oilless bushing (4) is arranged on the inner wall of the pump body (3), a spline shaft (5) is arranged on one side, far away from the pump body (3), of the first oilless bushing (4), a round key (12) is arranged on the inner wall of the spline shaft (5), a second oilless bushing (9) is arranged on the outer wall of the spline shaft (5), an eccentric ring (6) is arranged on the inner wall of the pump body (3), a rotor (7) is arranged on the inner wall of the eccentric ring (6), the inner wall of the rotor (7) is provided with a second cylindrical pin (13), the inner wall of the eccentric ring (6) is provided with a first cylindrical pin (8), the outer wall of the first cylindrical pin (8) is provided with a large cover (10), and the inner wall of the large cover (10) is movably connected with an inner hexagonal screw (11).

2. The bi-directional gerotor pump based on a special eccentric ring of claim 1, wherein: the eccentric ring (6) is in eccentric design, and one side of the outer wall is high while the other side is low.

3. The bi-directional gerotor pump based on a special eccentric ring of claim 1, wherein: the rotor (7) consists of an inner rotor and an outer rotor, and a pump shaft is arranged on the inner wall of the rotor (7).

4. The bi-directional gerotor pump based on a special eccentric ring of claim 1, wherein: a first mounting groove is formed in the inner wall of the large cover (10), and the diameter and the size of the inner wall of the first mounting groove are matched with the diameter and the size of the outer wall of the first cylindrical pin (8).

5. The bi-directional gerotor pump based on a special eccentric ring of claim 1, wherein: the inner wall of the big cover (10) is provided with an inner hexagonal screw groove, and the shape and the size of the inner wall of the inner hexagonal screw groove are matched with the shape and the size of the outer wall of the inner hexagonal screw (11).

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