CN110966180A

CN110966180A - Double-disk disrotatory digital tooth circular gear pump

Info

Publication number: CN110966180A
Application number: CN201910173600.0A
Authority: CN
Inventors: 邹伟明
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-04-07

Abstract

The invention discloses a double-disk disrotatory digital tooth circular gear pump. The invention discloses a pump body working process for enabling a driven gear disc to rotate around a shaft along with a driving gear disc in opposite directions and enabling the pump body to continuously and powerfully pump low-level feed liquid and continuous high-pressure feed liquid in an environment. The invention has the application characteristics of continuous large-flow powerful suction and large-discharge high-pressure conveying of environmental low-level feed liquid, and can be used as an air compression pump and a vacuum air pump with a double-rotor structure because of the variable circular concave tooth groove volume with relative large capacity.

Description

Double-disk disrotatory digital tooth circular gear pump

Technical Field

The invention relates to a double-disk disrotatory circular gear pump.

Background

The double-disk contra-rotating gear pump adopts two circular gear disks or half elliptic gear disks with the same plane specification, and the two circular gear disks or half elliptic gear disks are structured into a gear tooth cross complementary meshing relation of wheel disks with equal axle distance or a peripheral gear tooth meshing relation with cross axle distance complementary change, and are assembled in a sealed pump body cavity space, so that the two cross complementary meshed gear disk bodies form two sealed independent cavity space regions at the upper side and the lower side of a horizontal axis line of a pump body cavity, because a driven gear disk in a sliding joint surface meshing state synchronously rotates along with the opposite axial torque of a driving gear disk, a cavity space region at the lower side of the horizontal axis line forms a continuous increase accumulation process of continuously disengaging tooth socket space volume and a high vacuum degree cavity condition forming and continuously maintaining region, low-level feed liquid in a continuous strong suction environment is prone to enter the cavity space of the pump body, and a continuous engaging tooth socket space volume reducing disappearance process and a high vacuum degree cavity space are The volume pressure condition is formed and the area is continuously maintained, and the material liquid in the pump body tends to be continuously and forcefully extruded and discharged, so that the working process of continuously and forcefully sucking and directionally conveying the low-level material liquid in the environment by the double-disc contra-rotating gear pump body is formed, therefore, the double-disc contra-rotating gear pump has the mechanical characteristics of good sealing performance, low working noise, few mechanical parts, good reliability, capability of metering and conveying the low-level material liquid in the environment by forcefully sucking and conveying the high-pressure material liquid. The double-disk disrotatory gear pump comprises a double-disk disrotatory circular gear pump and a double-disk disrotatory elliptic gear pump (the patent applicant has filed the invention patent project of an elliptic gear pump, the patent application number is CN200810137871.2, the application date is 2008.07.06, the publication number is CN 101328887A), the conventional double-disk disrotatory multi-tooth circular gear pump is mainly applied to hydraulic lifting equipment of a small-displacement continuous high-pressure oil pipeline, and the double-disk disrotatory elliptic gear pump has a variable sealed inner cavity volume with relatively large capacity, so that the double-disk disrotatory circular gear pump can continuously pump liquid with large flow and convey low-level liquid in a large-displacement high-pressure environment, and has higher practicability.

Disclosure of Invention

The invention aims to provide a three-tooth circular gear pump and a four-tooth circular gear pump with a double-disc disrotatory structure, which can continuously pump high flow and strongly and convey low-level feed liquid in a high-discharge and high-pressure environment.

The technical task of the invention is completed by the following pump body structure design scheme: two three-tooth convex or four-tooth convex round curved convex tooth surface structures with the same plane radius and corresponding three-tooth groove or four-tooth groove round concave tooth groove structures with a slightly larger plane radius are arranged at equal intervals on the circumference, and the three-tooth convex circular wheel disc bodies or the four-tooth convex circular wheel disc bodies with the mutually crossed sliding joint surfaces are meshed with a transverse row through shaft and are assembled and positioned in the cavity space of a meshed double-rotor pump body of an end cover pump body with a sealed cavity,

when the driving gear disc body performs the directional torque rotation process under the coaxial drive of a driving motor or a driving power machine, the three-tooth or four-tooth round curved tooth convex structure on the peripheral surface of the driving gear disc body can continuously and sequentially perform directional torsion sliding pressure to stir the corresponding round curved tooth convex structure on the peripheral surface of the driven gear disc body, so that the driven gear disc body forms a synchronous rotation process along with the opposite axial torque of the driving gear disc body, and simultaneously forms round curved tooth convex of two contra-rotating round gear disc bodies, the peripheral surfaces of the left side and the right side of an inner cavity of the pump body and sliding sealing surfaces of which one side tooth convex is mutually crossed and meshed with the corresponding tooth socket of the other side, so that two independent sealing space volume areas on the upper side and the lower side of a horizontal axis are formed in the inner cavity of the pump body, and the crossed complementary meshing and disengaging processes along with the continuous opposite directions between the tooth convex and the tooth socket of the two directional contra-rotating The adding process forms a pump body working process that the pump body continuously conveys the feed liquid in the inner cavity of the pump body at high pressure through the liquid outlet pipeline and a pump body working process that the sealing volume of the inner cavity at the lower side is in a continuous strong reduction reducing process, so that the pump body continuously and strongly pumps the low-level feed liquid in the environment through the liquid inlet pipeline.

Compared with the conventional double-disk counter-rotating multi-tooth circular gear pump, the double-disk counter-rotating multi-tooth circular gear pump has the application characteristics of continuously and strongly sucking the low-level feed liquid in the environment with relatively large flow and relatively large discharge at high pressure, and can be used as a vacuum air pump and an air compression pump with a double-rotor structure. The structure of the invention is explained in detail below with reference to the drawings.

Description figure 1 is a front view structure of the three teeth circular gear pump of the present invention without cover.

Description figure 2 is a front view structural diagram of a four-tooth circular gear pump of the present invention without a cover.

Description figure 3 is the overall appearance top view structure of the invention.

Referring to the attached drawings 1, 2 and 3 of the specification, three or four circular curved convex tooth surface structures (6) (9) with the same plane radius and three or four circular curved concave tooth groove structures (11) (8) with the same or four slightly larger plane radii are respectively arranged on the outer circumferential walls of two circular gear disc bodies (figure 1, 5, 12) or four circular gear disc bodies (figure 2, 5, 12) with the same plane specification at equal intervals on the circumference, and the two circular curved convex tooth surface surfaces (6) (9) of the two circular gear disc bodies (5) (12) and the pump body are horizontally and transversely axially assembled and positioned in the sliding shaft holes (4) (7) of the inner cavity space (10) (13) of the pump body (3) with the front sealing end cover plate (14) in the opposite crossing complementary meshing structure state, and the two outer circular curved convex tooth surface surfaces (6) (9) of the two circular gear disc bodies (5) (12) and the pump body are assembled at the horizontal axial lead of the pump body The left and right side circumferential wall surfaces of the inner cavity are in an assembly structure state of sliding contact surface sealing, and a circular through hole wall surface structure (16) with the same radius specification is arranged at the plane axis position of three or four circular curve convex tooth surface structures (6) and (9) of the driving gear disc body (5) and the driven gear disc body (12) respectively to reduce the weight of the gear disc body. A pump body liquid outlet orifice extending connection pipe structure (1) and a pump body liquid inlet orifice extending connection pipe structure (2) are respectively arranged at the middle position on the peripheral wall of the top surface and the peripheral wall of the bottom surface of the pump body shell or at the upper end position and the lower end position of a middle shaft perpendicular line of a sealing cover plate (14) at the front end of the pump body shell and are respectively communicated with an upper side closed space region (13) and a lower side closed space region (10) of a horizontal axial line of an inner cavity of a pump body, and a driving motor or a driving power machine (15) and a back end main shaft (4) of a driving gear disc body (5) are assembled into a coaxially driven structural relationship and are fixed on the outer wall surface of a back.

Claims

1. A double-disk contra-rotating multi-tooth circular gear pump is structurally characterized in that three circular-curve-shaped convex tooth surface structures (6) and (9) with the same plane radius and three circular-curve-shaped concave tooth groove structures (11) and (8) with the same slightly-large plane radius are arranged at the periphery of the outer circumferential wall of a three-tooth circular gear disk body (5) and (12) with central shaft structures (4) and (7) at two ends at equal intervals, the top surfaces of the bottoms of the circular-curve-shaped concave tooth grooves (11) and (8) are positioned at the positions which are as close to the circle radius of the central sliding shaft structures (4) and (7) of the disk body as possible, a transparent-wall circular hole structure (16) with the same circle radius specification is arranged at the position of the plane axes of the three circular-curve-shaped convex tooth surface structures (6) and (9) of the driving gear disk body (5) and the driven gear disk body (12), and the two three-tooth circular gear disk bodies (5) and (12) with the same plane specification are provided with the inner- The inner concave tooth grooves (11) and (8) are mutually and complementarily meshed to form a sliding surface sealing assembly structure relationship, sliding shafts penetrate through the wall and are transversely arranged and positioned in corresponding sliding shaft holes (4) and (7) on front and rear end face wall plates of a pump body inner cavity space (10) and (13) with a front sealing end face cover plate (14), circular curved convex tooth top surfaces (6) and (9) on the outer sides of two circular gear disc bodies (5) and (12) are respectively kept in a sliding surface sealing assembly structure state with corresponding inner peripheral wall surfaces on the left side and the right side in the inner cavity of the pump body, a pump body hole and an outward liquid outlet connecting pipe structure (1) and a pump body liquid inlet hole and an outward liquid outlet connecting pipe structure (2) are respectively arranged at the middle position of the top surface peripheral wall and the bottom surface peripheral wall of the pump body shell (3) or at the upper end position and the lower end position of a middle shaft vertical line of the pump body inner cavity front sealing cover plate (14) and are respectively, the driving motor or the driving power machine (15) and the through-wall overhanging main shaft (4) structure of the driving gear disk body (5) form a coaxial driving assembly relationship and are fixedly installed on the outer wall surface of the end wall plate at the back side of the pump body (3), thereby forming the integral structure of the double-disk disrotatory three-tooth circular gear pump.

2. The gear pump as defined in claim 1, wherein the gear pump is structurally characterized in that (fig. 2) (fig. 3) four circular convex tooth surface structures (6) (9) having the same plane radius and four circular concave tooth groove structures (11) (8) having the same larger plane radius are provided at the outer circumferential wall of the four-tooth circular gear disks (5) (12) having the central sliding shaft structure at both ends at equal intervals around the circumference, the top surfaces of the bottom portions of the circular concave tooth grooves (11) (8) are located at positions as close as possible to the radius of the central sliding shaft structure (4) (7) of the disks, and a transparent circular hole structure (16) having the same radius is provided at the axial center positions of the three circular convex tooth surface structures (6) (9) of the driving gear disk (5) and the driven gear disk (12), respectively, and two four-tooth circular gear disks (5) (12) having the same plane specification are provided with an inner circular convex tooth surface (6) (9) and an inner circular convex tooth surface (6) (9) of the other curved circular concave tooth surface The concave tooth grooves (11) and (8) are crossed, complementarily meshed to form a sliding surface sealing assembly structure relationship, sliding shafts are transversely arranged in sliding shaft holes (4) and (7) on front and rear side end face plate walls of a pump body inner cavity space (13) and (10) with a front sealing end face cover plate (14) in a wall-penetrating mode, and outer circular curve convex tooth top surfaces (6) and (9) of two circular gear disc bodies (5) and (12) on the horizontal axial line of the pump body inner cavity are respectively kept in a sliding surface sealing assembly structure state with corresponding inner peripheral wall surfaces on the left side and the right side of the pump body inner cavity, so that the integral structure of the double-disc counter-rotating four-tooth circular gear pump is formed.