CN117028246B

CN117028246B - Gear pump

Info

Publication number: CN117028246B
Application number: CN202311147300.8A
Authority: CN
Inventors: 何建洪; 黄建展; 黄国尧
Original assignee: Wenzhou Achr Electromechanical Co ltd
Current assignee: Wenzhou Achr Electromechanical Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-05-31
Anticipated expiration: 2043-09-06
Also published as: CN117028246A

Abstract

The application relates to the technical field of gear pumps, and discloses a gear pump, which comprises a mounting cover, a pump body and an inner rotor, wherein the pump body comprises a parallel sleeve and a cover plate, a flow hole is formed in the cover plate, and the parallel sleeve and the cover plate are integrally formed; simultaneously, because the parallel sleeve and the cover plate are integrally formed, the parallel sleeve cannot shake on the cover plate, the possibility of separation between the parallel sleeve and the cover plate is reduced, and therefore liquid can be transported more stably in the pump body.

Description

Gear pump

Technical Field

The application relates to the technical field of gear pumps, in particular to a gear pump.

Background

Gear pumps are a common positive displacement pump that delivers liquid through gears, which are used widely in construction machinery and vehicles, and which draw liquid from one area and push the liquid to another area by meshing and eccentrically rotating the gears, thereby achieving transportation of the liquid.

The gear pump in the related art is including installing lid, the pump body and inner rotor, the inner rotor rotates in the inside of the pump body, installing lid and pump body fixed connection, the inner rotor includes external gear and internal gear, external gear and internal gear intermeshing, and the internal gear can rotate in the external gear at the decentration, the pump body includes parallel cover and apron, the perforation has been seted up on the parallel cover, the through-hole has been seted up on the apron, be equipped with the screw on the parallel cover, the screw is fixed with the apron through perforation and through-hole, the flow hole has been seted up on the apron, the inner rotor rotates in parallel cover, realize the flow of liquid in the pump body.

Because the parallel sleeve is fixed with the cover plate through the screw, a certain gap exists between the screw and the hole wall of the through hole, a certain movable space exists between the screw and the hole wall of the through hole, when the inner rotor rotates in the parallel sleeve, the inner rotor can drive the parallel sleeve to shake, thereby leading to separation between the parallel sleeve and the cover plate, and liquid can flow out from the gap between the cover plate and the parallel sleeve.

Disclosure of Invention

In order to improve the possibility that liquid will flow out of the pump body, the application provides a gear pump.

The gear pump provided by the application adopts the following technical scheme:

The utility model provides a gear pump, includes installation lid, the pump body and inner rotor, the pump body includes parallel cover and apron, the flow hole has been seted up on the apron, parallel cover and apron integrated into one piece.

By adopting the technical scheme, the parallel sleeve and the cover plate are integrally formed, so that gaps cannot exist between the parallel sleeve and the cover plate, liquid is not easy to flow out from between the parallel sleeve and the cover plate, and the possibility of liquid waste is reduced; simultaneously, because the parallel sleeve and the cover plate are integrally formed, the parallel sleeve cannot shake on the cover plate, the possibility of separation between the parallel sleeve and the cover plate is reduced, and therefore liquid can be transported more stably in the pump body.

Optionally, a reinforcing rib is arranged on the end face of the cover plate, and the reinforcing rib is connected with the parallel sleeve.

Through adopting above-mentioned technical scheme, set up on the apron through the strengthening rib for joint strength between apron and the parallel cover increases, improves the firm degree between apron and the parallel cover.

Optionally, the strengthening rib is provided with a plurality of, be equipped with the strengthening ring on the apron, the strengthening ring passes a plurality of strengthening ribs.

Through adopting above-mentioned technical scheme, pass a plurality of strengthening ribs through the strengthening ring, the strengthening ring sets up on the apron for can interconnect between a plurality of strengthening ribs, let the strengthening rib pass through the strengthening ring transmission effort, let connect each other between a plurality of strengthening ribs, reduce the condition that a certain direction strengthening rib receives the effort too big and produce the damage.

Optionally, a plurality of reinforcing strips are arranged on the outer surface of the parallel sleeve, and the plurality of reinforcing strips extend along the circumferential direction of the parallel sleeve.

Through adopting above-mentioned technical scheme, extend along the circumference of parallel cover through a plurality of strengthening strips, strengthen the intensity of parallel cover surface for parallel cover can bear more effort.

Optionally, the parallel sleeve is provided with a ring groove, and a sealing strip is arranged in the ring groove.

Through adopting above-mentioned technical scheme, set up in the annular through the sealing strip, the cell wall of annular is restricted the sealing strip for the sealing strip can be stable be located parallel and sheathe in, thereby the sealing strip can seal the gap between parallel cover and the installation lid, reduces the possibility that liquid flows out in the gap between parallel cover and the installation lid.

Optionally, the parallel sleeve is provided with a perforation communicated with the annular groove, and one end of the sealing strip can extend out of the perforation.

Through adopting above-mentioned technical scheme, when the sealing strip receives the damage after long-time use, stretch out the perforation through the one end of sealing strip for the staff can pull out the sealing strip through perforation department, and insert the annular with new sealing strip from the perforation in, thereby let the sealing strip change, be convenient for the sealing strip change.

Optionally, a fixing ring is arranged on the parallel sleeve, and the fixing ring can seal the perforation.

Through adopting above-mentioned technical scheme, through fixed ring shutoff perforation for the fixed ring restriction sealing strip breaks away from the possibility of annular from perforation department, thereby lets the sealing strip be located the annular steadily, realizes the shutoff of sealing strip to the gap between parallel cover and the installation lid.

Optionally, the fixed ring is provided with a clamping block, the parallel sleeve is provided with a clamping groove, and when the clamping block is inserted into the clamping groove, the fixed ring can seal the perforation.

Through adopting above-mentioned technical scheme, insert the draw-in groove through the fixture block in for the solid fixed ring can be fixed on the parallel cover, reduces gu fixed ring and sheathes gliding possibility in the parallel, thereby lets gu fixed ring can restrict the sealing strip, reduces the possibility that the sealing strip breaks away from perforation.

Optionally, a metal wire is arranged in the sealing strip.

Through adopting above-mentioned technical scheme, be equipped with the wire in through the sealing strip for the sealing strip has certain hardness, and the staff of being convenient for inserts the sealing strip in the annular from perforation department, reduces the operation degree of difficulty that the staff inserted the sealing strip annular department.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Through the integrated molding of the parallel sleeve and the cover plate, no gap exists between the parallel sleeve and the cover plate, so that liquid can be stably positioned between the parallel sleeve and the cover plate, and leakage of the liquid is reduced; simultaneously parallel cover and apron integrated into one piece for parallel cover can not produce and rock on the apron, reduces parallel cover and apron separation's possibility, thereby lets the liquid be located the pump body steadily.

2. Because parallel cover and installation lid are not integrated into one piece, therefore there is the gap between parallel cover and the installation lid for liquid can flow in the gap between parallel cover and the installation lid, be located the annular through the sealing strip, make the sealing strip can carry out the shutoff to the gap between parallel cover and the installation lid, stretch out the perforation through the one end of sealing strip, make the sealing strip can change in the annular, make impaired sealing strip in time change, avoid the impaired back sealed condition that effect is not strong of sealing strip.

Drawings

Fig. 1 is a schematic structural view of embodiment 1;

FIG. 2 is an exploded view showing the inner rotor in example 1;

FIG. 3 is a schematic view showing the structure of a reinforcing rib in example 1;

fig. 4 is a schematic structural view of embodiment 2;

FIG. 5 is a schematic view showing the structure of a protruding ring groove in example 2;

FIG. 6 is an enlarged schematic view of portion A of FIG. 5;

FIG. 7 is an exploded view of the protruding card slot of example 2;

fig. 8 is a schematic diagram showing the structure of the protruding fixture block in embodiment 2.

Reference numerals: 1. a mounting cover; 2. a pump body; 21. a parallel sleeve; 211. reinforcing strips; 22. a cover plate; 221. a flow hole; 222. reinforcing ribs; 223. a reinforcing ring; 224. a reinforcing plate; 225. a clasp; 23. a ring groove; 231. perforating; 232. a receiving groove; 233. a connection hole; 24. a sealing strip; 241. a wire; 25. a fixing groove; 251. a clamping groove; 26. a fixing ring; 261. a clamping block; 27. fixing glue; 3. an inner rotor; 31. an internal gear; 311. external teeth; 32. an external gear; 321. a rotation hole; 322. internal teeth; 33. a driving member.

Detailed Description

The application is described in further detail below with reference to fig. 1-8.

Example 1

The embodiment discloses a gear pump. Referring to fig. 1 and 2, a gear pump includes a mounting cap 1, a pump body 2, and an inner rotor 3. The pump body 2 comprises a parallel sleeve 21 and a cover plate 22, wherein the parallel sleeve 21 is annular, and the parallel sleeve 21 is integrally formed on the end face of the cover plate 22. The end surface of the cover plate 22 is provided with flow holes 221, and the flow holes 221 extend in the circumferential direction of the cover plate 22. The mounting cover 1 can be fixedly connected to the end face of the parallel sleeve 21, which is far away from the cover plate 22, and the inner rotor 3 can rotate in the pump body 2.

Referring to fig. 2, the inner rotor 3 includes an inner gear 31 and an outer gear 32, outer teeth 311 are fixedly coupled to an outer circumferential surface of the inner gear 31, a rotation hole 321 is formed in the outer gear 32, and inner teeth 322 are fixedly coupled to a wall of the rotation hole 321. The external teeth 311 mesh with the internal teeth 322, that is, the internal gear 31 can rotate in the external gear 32. The internal gear 31 eccentrically rotates on the external gear 32. When the internal gear 31 rotates within the external gear 32, the liquid flows in the pump body 2 by the engagement and separation of the internal teeth 322 and the external teeth 311. The inner rotor 3 is provided with a driving piece 33, and the driving piece 33 can drive the inner rotor 3 to rotate.

Referring to fig. 2 and 3, a plurality of reinforcing ribs 222 are integrally formed on an end surface of the cover plate 22 remote from the parallel sleeve 21, and the plurality of reinforcing ribs 222 are distributed along a circumferential array of the cover plate 22. The end surface of the cover plate 22, which is far away from the parallel sleeve 21, is integrally formed with a reinforcing ring 223, and the reinforcing ring 223 passes through a plurality of reinforcing ribs 222. The end surface of the cover plate 22, which is far away from the parallel sleeve 21, is integrally provided with a clamping ring 225, the clamping ring 225 is fixedly connected with a plurality of reinforcing ribs 222, and the clamping ring 225 is positioned on the outer side of the reinforcing ring 223.

Referring to fig. 2 and 3, a plurality of reinforcing bars 211 are fixedly coupled to the outer circumferential surface of the parallel sleeve 21, and the plurality of reinforcing bars 211 are distributed along the circumferential array of the parallel sleeve 21. The reinforcing strips 211 abut against the end faces of the parallel sleeve 21 which are redirected. The outer circumferential surface of the cover plate 22 is integrally formed with a plurality of reinforcing plates 224, and the plurality of reinforcing plates 224 are distributed along the circumferential array of the cover plate 22.

The implementation principle of the embodiment 1 is as follows: through apron 22 and parallel cover 21 integrated into one piece for there is not the gap between parallel cover 21 and the apron 22, reduces the possibility that liquid flows from the gap, reduces the waste of liquid.

Example 2

Referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that a ring groove 23 is opened on the end surface of the parallel sleeve 21 remote from the cover plate 22, the ring groove 23 extends along the circumferential direction of the parallel sleeve 21, and the ring groove 23 penetrates to the inner wall of the parallel sleeve 21. The outer surface of the parallel sleeve 21 is provided with a perforation 231, and the perforation 231 is communicated with the annular groove 23.

Referring to fig. 5 and 6, the outer surface of the parallel sleeve 21 is provided with a receiving groove 232, and the receiving groove 232 extends in the circumferential direction of the parallel sleeve 21. The hole wall of the through hole 231 is provided with a connecting hole 233, and the connecting hole 233 is communicated with the accommodating groove 232. The parallel sleeve 21 is provided with a sealing strip 24, and the sealing strip 24 can be inserted into the annular groove 23. The end face of the sealing strip 24 remote from the cover plate 22 is located on the side of the end face of the parallel sleeve 21 facing away from the cover plate 22, so that the sealing strip 24 seals.

Referring to fig. 7, a wire 241 is fixedly coupled to the inside of the sealing strip 24 so that the sealing strip 24 is inserted into the receiving groove 232 and the ring groove 23.

Referring to fig. 6 and 7, both ends of the sealing strip 24 are located at the perforation 231, one end of the sealing strip 24 is located at the perforation 231 to be short, the other end of the sealing strip 24 is located at the perforation 231 to be long, and the long end can be inserted into the receiving groove 232. The perforation 231 is coated with a fixing glue 27, and the fixing glue 27 is used for limiting the movement of the sealing strip 24.

Referring to fig. 6 and 7, when a worker pulls one end of the sealing strip 24, which is shorter than the penetration hole 231, the other end of the sealing strip 24 moves in the receiving groove 232 and the sealing strip 24 located in the ring groove 23 is replaced, so that the sealing strip 24 can be replaced.

Referring to fig. 7, the outer surface of the parallel sleeve 21 is provided with a fixing groove 25 communicating with the through hole 231, and the fixing groove 25 extends in the circumferential direction of the parallel sleeve 21. The fixing groove 25 is provided with a fixing ring 26, and the fixing ring 26 has elastic deformation capability. When the fixing ring 26 is positioned in the fixing groove 25, the fixing ring 26 can block the perforation 231 to restrict the movement of the sealing strip 24.

Referring to fig. 7 and 8, a clamping block 261 is fixedly connected to the inner wall of the fixing ring 26, a clamping groove 251 is formed in the bottom wall of the fixing groove 25, when the clamping block 261 is inserted into the clamping groove 251, the fixing ring 26 can be stably located in the fixing groove 25, and the fixing ring 26 does not drive the sealing strip 24 to move.

The implementation principle of the embodiment 2 is as follows: the worker first removes the fixing ring 26 from the fixing groove 25, unseals the fixing adhesive 27, pulls the sealing strip 24 out of the through hole 231, and allows the sealing strip 24 at the ring groove 23 to be replaced.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

The above embodiments are only preferred embodiments of the present application, and are not intended to limit the present application, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present application should be included in the scope of the present application.

Claims

1. The utility model provides a gear pump, includes installation lid (1), pump body (2) and inner rotor (3), pump body (2) are including parallel cover (21) and apron (22), flow hole (221), its characterized in that have been seted up on apron (22): the utility model discloses a sealing device for the automobile, including parallel cover (21) and apron (22) integrated into one piece, annular (23) have been seted up on parallel cover (21), be equipped with sealing strip (24) in annular (23), perforation (231) of intercommunication annular (23) have been seted up on parallel cover (21), perforation (231) can be stretched out to one end of sealing strip (24), holding tank (232) have been seted up on the surface of parallel cover (21), the circumference extension of parallel cover (21) is followed to holding tank (232), connecting hole (233) have been seted up on the pore wall of perforation (231), connecting hole (233) intercommunication holding tank (232), the both ends of sealing strip (24) all are located perforation (231) department, the one end of sealing strip (24) is located perforation (231) and is shorter, the other end of sealing strip (24) is located perforation (231) longer, and longer one end can insert in holding tank (232).

2. The gear pump of claim 1, wherein: the end face of the cover plate (22) is provided with a reinforcing rib (222), and the reinforcing rib (222) is connected with the parallel sleeve (21).

3. A gear pump according to claim 2, wherein: the reinforcing ribs (222) are arranged in a plurality, the cover plate (22) is provided with reinforcing rings (223), and the reinforcing rings (223) penetrate through the reinforcing ribs (222).

4. The gear pump of claim 1, wherein: a plurality of reinforcing strips (211) are arranged on the outer surface of the parallel sleeve (21), and the reinforcing strips (211) extend along the circumferential direction of the parallel sleeve (21).

5. The gear pump of claim 1, wherein: the parallel sleeve (21) is provided with a fixing ring (26), and the fixing ring (26) can seal the perforation (231).

6. The gear pump of claim 5, wherein: the fixing ring (26) is provided with a clamping block (261), the parallel sleeve (21) is provided with a clamping groove (251), and when the clamping block (261) is inserted into the clamping groove (251), the fixing ring (26) can seal the perforation (231).

7. The gear pump of claim 1, wherein: a metal wire (241) is arranged in the sealing strip (24).