CN212130787U

CN212130787U - Light gear pump shell

Info

Publication number: CN212130787U
Application number: CN202020801460.5U
Authority: CN
Inventors: 李平; 曹友国; 胡广
Original assignee: LOTUSFAIRY POWER TECHNOLOGIES CORP
Current assignee: LOTUSFAIRY POWER TECHNOLOGIES CORP
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-11
Anticipated expiration: 2030-05-14

Abstract

The utility model discloses a light gear pump shell, a serial communication port, include: the front cover, the middle cover and the rear cover are of a structure which is formed by a cylinder and is provided with a cutting plane and an arc-shaped surface after being cut longitudinally, a pair of first bolt holes penetrating through the front cover, the middle cover and the rear cover are arranged on the inner side of the arc-shaped surface opposite to the cutting plane and are sunk towards the middle cover on the surface of the front cover, so that the length of the first bolt holes is smaller than the height of the front cover, the middle cover and the rear cover, a pair of first bolts are arranged in the pair of first bolt holes to be connected with the front cover, the middle cover and the rear cover, the front cover, the middle cover and the rear cover are further connected through a pair of second bolts, and the front cover, the middle cover and the rear cover are relatively positioned on two sides of the pair of first bolts. The utility model discloses carry out technical optimization and subtract heavy with the shell of gear pump, make it carry out industrial production with powder metallurgy's mode to the production efficiency of gear pump shell and the uniformity of product obtain very big promotion.

Description

Light gear pump shell

Technical Field

The utility model relates to a gear pump spare part technical field. More specifically, the utility model relates to a light gear pump shell.

Background

The gear pump shell is made of stainless steel metal materials, the size requirement on a working part is very fine, the existing gear pump shell production technology adopts machining and metal casting modes to produce, the gear pump shell produced by the two modes is heavy in quality, the production cost is high, and the consistency of yield and products is a large problem in the production process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light gear pump shell carries out technical optimization and subtracts the weight with the shell of gear pump, optimizes its unnecessary corner, makes it carry out industrial production with powder metallurgy's mode to the production efficiency of gear pump shell and the uniformity of product obtain very big promotion.

To achieve these objects and other advantages in accordance with the purpose of the invention, a light gear pump housing is provided, including: the front cover, the middle cover and the rear cover are connected through a pair of second bolts, and the front cover, the middle cover and the rear cover are oppositely positioned on two sides of the pair of first bolts and are also positioned on the inner sides of the arc surfaces.

Preferably, the arc-shaped surface is recessed inwardly between the pair of first bolts and between the second bolt and the first bolt to form a recessed arc surface so that the first bolt and the second bolt are protruded independently.

Preferably, the arc-shaped surface of the middle cover is recessed from the pair of second bolts toward the cutting plane, respectively, so that the middle cover forms a pair of steps between the front cover and the rear cover.

Preferably, the screw hole of the second bolt is also sunk toward the middle cover at the front cover surface so that the second bolt surface is flush with the front cover surface.

Preferably, the cutting surface of the front cover is provided with a liquid inlet and outlet.

Preferably, the rear cover is connected to a motor housing of the gear pump.

The utility model discloses at least, include following beneficial effect:

1. the utility model discloses under the prerequisite that does not influence the gear pump performance, carry out technical optimization and subtract heavy with the shell of gear pump, optimize its unnecessary corner, make it carry out industrial production with powder metallurgy's mode to the production efficiency of gear pump shell and the uniformity of product obtain very big promotion.

2. Compare in current gear pump shell, the utility model discloses a light gear pump shell is effectual has alleviateed pump head quality 110 ~ 260g, the effectual material that reduces the production gear pump shell, the effectual manufacturing cost that has reduced.

3. The light gear pump shell adopts an industrial production mode of powder metallurgy, and compared with the existing machining mode, the production efficiency is effectively improved; compared with the existing metal casting mode, the precision of the product production process is effectively improved, and the consistency of the product production is improved.

4. Compared with the traditional gear pump shell, the light gear pump shell has more excellent matching capability with a using system.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic view of one of the orientations of the gear pump housing of the present invention;

FIG. 2 is another schematic view of the gear pump housing of the present invention in another orientation;

FIG. 3 is a schematic view of one of the orientations of a prior art gear pump housing;

fig. 4 is a schematic view of another orientation of a prior art gear pump housing.

Description of reference numerals:

1. the motor comprises a front cover, a middle cover, a rear cover, a concave cambered surface, a step, a liquid inlet and outlet, a motor shell, a cutting surface, a first bolt, a second bolt and a step, wherein the front cover 2, the middle cover 3, the rear cover 4, the concave cambered surface 5, the step 6, the liquid inlet and outlet 7, the motor shell 8, the cutting surface 9.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the utility model provides a light gear pump shell, include: the front cover 1, the middle cover 2 and the rear cover 3, the front cover 1, the middle cover 2 and the rear cover 3 are of a structure which is formed by a cylinder and has a cutting surface 8 and an arc surface after being longitudinally cut, the front cover 1, the middle cover 2 and the rear cover 3 are provided with a pair of first bolt holes penetrating through the front cover 1, the middle cover 2 and the rear cover 3 on the inner side of the arc surface opposite to the cutting surface 8, the surface of the front cover 1 sinks towards the middle cover 2 to enable the length of the first bolt holes to be smaller than the height of the front cover 1, the middle cover 2 and the rear cover 3, a pair of first bolts 9 are arranged in the pair of first bolt holes to be connected with the front cover 1, the middle cover 2 and the rear cover 3, the front cover 1, the middle cover 2 and the rear cover 3 are further connected through a pair of second bolts 10, and the first bolts are relatively positioned on two sides of the pair of the first bolts 9 and are.

In the above technical solution, it can be known from fig. 3 and 4 that the conventional gear pump housing is formed by a whole circular arc shape and a cutting plane, and then the front cover 1, the middle cover 2 and the rear cover 3 are directly connected by bolts. Fig. 1 and fig. 2 are the structural schematic diagram of the gear pump housing of the present invention, which is shown for fig. 3 and fig. 4, compared with the existing gear pump housing, the front cover 1 is partially designed to be reduced according to the internal cavity flow channel of the gear pump, and a pair of first bolts 9 is fixed and positioned to sink to further reduce the mass of the housing.

In another technical scheme, the arc-shaped surface is recessed inwards between a pair of first bolts 9 and between the second bolt 10 and the first bolt 9 to form a recessed arc surface 4, so that the first bolt 9 and the second bolt 10 are independently protruded.

In the technical scheme, the front cover 1, the middle cover 2 and the rear cover 3 are subjected to profile modeling material reduction design according to the positioning pin vacant positions and bolt hole positions, and the parts needing to be reserved in the existing machining mode are subtracted, namely, arc-shaped surfaces among the bolts are recessed inwards, and only shell materials at the bolts are reserved, so that the shell quality is further reduced.

In another technical scheme, the arc-shaped surfaces of the middle cover 2 are recessed from the pair of second bolts 10 to the cutting surfaces 8 respectively, so that the middle cover 2 forms a pair of steps 5 between the front cover 1 and the rear cover 3.

In the technical scheme, the sealing surfaces of the front cover 1 and the rear cover 3 are used for installing and positioning products, and the parts of the middle cover 2, which are coplanar with the sealing surfaces, are subjected to material reduction design, so that the mass of the shell can be further reduced.

In another technical scheme, the screw hole of the second bolt 10 is sunk to the middle cover 2 at the surface of the front cover 1 so that the surface of the second bolt 10 is flush with the surface of the front cover 1.

In another technical scheme, a liquid inlet and outlet 6 is arranged on a cutting surface 8 of the front cover 1.

In another embodiment, the rear cover 3 is connected to a motor housing 7 of the gear pump.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A light gear pump housing, comprising: the front cover, the middle cover and the rear cover are connected through a pair of second bolts, and the front cover, the middle cover and the rear cover are oppositely positioned on two sides of the pair of first bolts and are also positioned on the inner sides of the arc surfaces.

2. The lightweight gear pump housing of claim 1, wherein the arcuate surfaces are each recessed inwardly between a pair of first bolts and between the second bolts and the first bolts to form a concave arcuate surface such that the first bolts and the second bolts are individually raised.

3. The lightweight gear pump housing of claim 1, wherein the arcuate face of the center cover is recessed from the pair of second bolts toward the cut-out face such that the center cover forms a pair of steps between the front cover and the rear cover.

4. The light weight gear pump housing of claim 1, wherein the threaded bore of the second bolt is also countersunk in the front cover surface toward the center cover such that the second bolt surface is flush with the front cover surface.

5. The light gear pump housing of claim 1, wherein the front cover has a fluid inlet and outlet port in a cut-away section.

6. The lightweight gear pump housing of claim 1, wherein said rear cover is connected to a motor housing of the gear pump.