CN210068468U

CN210068468U - Harmonic gear pump

Info

Publication number: CN210068468U
Application number: CN201920796197.2U
Authority: CN
Inventors: 彭德军; 周会发; 王世平; 罗勇; 李保生
Original assignee: HUBEI DAQI HYDRAULIC CO Ltd
Current assignee: HUBEI DAQI HYDRAULIC CO Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-02-14
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a harmonic formula gear pump, including the gear pump main part, the one end of gear pump main part is passed through set screw and is fixed mutually with the rear end cap, the surface mounting of rear end cap advances oil pipe, the bottom of gear pump main part is passed through the support column and is fixed mutually with the support base, the front end of rear end cap passes through joint spare and gear pump main part is fixed, and the front end surface of rear end cap is provided with the slotted hole, gear pump main part internally mounted has the fixed block, and the front end surface of gear pump main part is provided with preceding separation blade, and preceding separation blade inside is provided with the gear groove, the gear groove is provided with two, and first gear and second gear are installed respectively to gear inslot portion. The utility model discloses an utilize the flange structure to carry out fixed connection to first gear and second gear department, it is inseparable to possess to connect, dismantles the swift advantage of easy maintenance, only needs a set of motor can drive two gears and meshes the transmission.

Description

Harmonic gear pump

Technical Field

The utility model relates to a gear pump technical field specifically is a harmonic formula gear pump.

Background

The gear pump is driven by an independent motor, and upstream pressure pulsation and flow fluctuation can be effectively blocked. The pressure pulsation at the outlet of the gear pump can be controlled within 1%. A gear pump is adopted on an extrusion production line, so that the flow output speed can be improved, and the shearing and residence time of materials in the extruder is reduced. Gear pumps are rotary pumps that deliver or pressurize fluid by virtue of the change in working volume and movement created between a pump cylinder and a meshing gear. Two gears, pump body and front and back covers form two closed spaces, when the gears rotate, the space on the gear disengagement side becomes larger from smaller to larger to form vacuum to suck liquid, and the space on the gear engagement side becomes smaller from larger to smaller to squeeze liquid into the pipeline. The suction chamber and the discharge chamber are separated by a meshing line of two gears. The pressure at the discharge of the gear pump is entirely dependent on the amount of resistance at the pump outlet. The internal gear pump is composed of a pair of internal gears engaged with each other, a crescent between them, and a pump casing. The crescent acts to separate the suction chamber from the discharge chamber. When the driving gear rotates, a local vacuum is formed at the place where the gear is disengaged, liquid is sucked into the pump to fill all the teeth of the suction chamber, and then enters the discharge chamber along the inner side and the outer side of the crescent piece. Where the teeth come into engagement, the liquid present between the teeth is squeezed and fed into the discharge tube.

Present harmonic formula gear pump mechanical transmission efficiency is lower, and is fixed inseparable to the gear installation simultaneously, and is inconvenient to its maintenance of dismantling, consequently the urgent need of market develop a neotype harmonic formula gear pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a harmonic gear pump to the harmonic gear pump mechanical transmission efficiency who proposes in solving above-mentioned background art is lower, and is fixed inseparable to the gear installation simultaneously, and is inconvenient to it dismantles the maintenance scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a harmonic gear pump, includes the gear pump main part, the one end of gear pump main part is passed through set screw and is fixed mutually with the rear end cap, the surface mounting of rear end cap advances oil pipe, the bottom of gear pump main part is passed through the support column and is fixed mutually with the support base, the front end of rear end cap passes through the joint spare and fixes with the gear pump main part, and the front end surface of rear end cap is provided with the slotted hole, gear pump main part internally mounted has the fixed block, and the front end surface of gear pump main part is provided with preceding separation blade, and preceding separation blade inside is provided with the gear groove, the gear groove is provided with two, and gear inslot portion installs first gear and.

Preferably, the centers of the first gear and the second gear are fixed with the rotating shaft through a flange plate.

Preferably, bearings are arranged at the hinged positions of the rotating shaft and the first gear and the second gear.

Preferably, one end of the rotating shaft extends into the gear pump body through the gear groove.

Preferably, the first gear and the second gear are in meshing transmission connection.

Preferably, the surface of the rear end cover is provided with a mounting hole.

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

(1) the centers of the first gear and the second gear are fixed with the rotating shaft through the flange plate, bearings are arranged at the hinged positions of the rotating shaft and the first gear and the second gear, the first gear and the second gear are fixedly connected through a flange structure, the flange structure has the advantages of tight connection and convenience and rapidness in disassembly and maintenance, and meanwhile, the bearings can effectively reduce the friction resistance between the rotating shaft and the gears and improve the transmission efficiency of machinery;

(2) first gear passes through the axis of rotation and is connected with driving motor rotates, connects through the meshing transmission between first gear and the second gear to can drive the second gear and rotate, only need a set of motor can drive two gears and mesh the transmission, improved mechanical transmission efficiency.

Drawings

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

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

fig. 3 is a top view of the present invention;

fig. 4 is a front view of the present invention.

In the figure: 1. a rear end cap; 2. a gear pump body; 3. a front baffle plate; 4. a first gear; 5. a rotating shaft; 6. an oil inlet pipe; 7. a support pillar; 8. a support base; 9. a second gear; 10. a slot; 11. a set screw; 12. a clamping piece; 13. a flange plate; 14. a bearing; 15. a fixed block; 16. gear groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a harmonic gear pump, including gear pump main part 2, set screw 11 is passed through to the one end of gear pump main part 2 and rear end cap 1 is fixed mutually, rear end cap 1's surface mounting has into oil pipe 6, support column 7 is passed through to the bottom of gear pump main part 2 and is fixed mutually with support base 8, rear end cap 1's front end is passed through joint spare 12 and is fixed with gear pump main part 2, and rear end cap 1's front end surface is provided with slotted

hole

10, 2 internally mounted of gear pump main part have fixed block 15, and the front end surface of gear pump main part 2 is provided with preceding

separation blade

3, 3 inside gear grooves 16 that are provided with of preceding separation blade, gear grooves 16 are provided with two, 16 internally mounted respectively of gear grooves have first gear.

Further, first gear 4 and second gear 9 center department are fixed with axis of rotation 5 through ring flange 13, carry out fixed connection through utilizing the flange structure to first gear 4 and second gear 9 department, possess and connect closely, dismantle easy maintenance swift advantage.

Further, the hinged parts of the rotating shaft 5 and the first gear 4 and the second gear 9 are provided with bearings 14, and meanwhile, the bearings 14 can effectively reduce the friction resistance between the rotating shaft 5 and the gears, and the transmission efficiency of the machine is improved.

Further, one end of the rotating shaft 5 extends to the inside of the gear pump main body 2 through the gear groove 16.

Further, be connected through the meshing transmission between first gear 4 and the second gear 9, first gear 4 rotates with driving motor through axis of rotation 5 to be connected to can drive second gear 9 and rotate, only need a set of motor can drive two gears and mesh the transmission, improved mechanical transmission efficiency.

Further, the surface of the rear end cover 1 is provided with a mounting hole.

The working principle is as follows: when in use, the front baffle 3 is arranged on the front end surface of the gear pump main body 2, the gear groove 16 is arranged inside the front baffle 3, the first gear 4 and the second gear 9 are respectively arranged inside the gear groove 16, the centers of the first gear 4 and the second gear 9 are fixed with the rotating shaft 5 through the flange 13, the first gear 4 and the second gear 9 are fixedly connected through the flange structure, the gear pump has the advantages of tight connection and convenient and quick disassembly and maintenance, the first gear 4 and the second gear 9 are connected through meshing transmission, the first gear 4 is rotationally connected with the driving motor through the rotating shaft 5, so that the second gear 9 can be driven to rotate, only one group of motors are needed to drive the two gears to carry out meshing transmission, the mechanical transmission efficiency is improved, the hinged parts of the rotating shaft 5 and the first gear 4 and the second gear 9 are both provided with the bearings 14, and the bearings 14 can effectively reduce the friction resistance between the rotating shaft 5 and the gears, the transmission efficiency of the machine is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A harmonic gear pump comprises a gear pump main body (2) and is characterized in that one end of the gear pump main body (2) is fixed with a rear end cover (1) through a fixing screw (11), the surface of the rear end cover (1) is provided with an oil inlet pipe (6), the bottom end of the gear pump main body (2) is fixed with a supporting base (8) through a supporting column (7), the front end of the rear end cover (1) is fixed with the gear pump main body (2) through a clamping piece (12), a slotted hole (10) is arranged on the front end surface of the rear end cover (1), a fixed block (15) is arranged in the gear pump main body (2), the front end surface of the gear pump main body (2) is provided with a front baffle (3), a gear groove (16) is arranged inside the front baffle (3), the two gear grooves (16) are arranged, and the first gear (4) and the second gear (9) are respectively installed in the gear grooves (16).

2. A harmonic gear pump as in claim 1 wherein: the centers of the first gear (4) and the second gear (9) are fixed with the rotating shaft (5) through a flange plate (13).

3. A harmonic gear pump as in claim 2 wherein: and bearings (14) are arranged at the hinged positions of the rotating shaft (5) and the first gear (4) and the second gear (9).

4. A harmonic gear pump as in claim 3 wherein: one end of the rotating shaft (5) penetrates through the gear groove (16) and extends into the gear pump main body (2).

5. A harmonic gear pump as in claim 1 wherein: the first gear (4) and the second gear (9) are in meshing transmission connection.

6. A harmonic gear pump as in claim 1 wherein: the surface of the rear end cover (1) is provided with a mounting hole.