CN206636778U - One kind gear pump case made of iron plastic composite materials - Google Patents
One kind gear pump case made of iron plastic composite materials Download PDFInfo
- Publication number
- CN206636778U CN206636778U CN201720357261.8U CN201720357261U CN206636778U CN 206636778 U CN206636778 U CN 206636778U CN 201720357261 U CN201720357261 U CN 201720357261U CN 206636778 U CN206636778 U CN 206636778U
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- CN
- China
- Prior art keywords
- iron
- gear pump
- main body
- pump case
- composite materials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- General Details Of Gearings (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses one kind made of iron plastic composite materials gear pump case, it is related to gear pump technical field, the gear pump case includes main body, there is the cavity for being used for accommodating driving gear and driven gear in the main body, the both sides of main body are respectively arranged with the oil inlet and oil-out connected with cavity, main body is in double-decker, the spheroidal graphite cast-iron skeleton of outer wall and internal layer including outer layer, and be a hollow interlayer between outer wall and spheroidal graphite cast-iron skeleton, is filled with modified PBT plastic filler in hollow interlayer.Product of the present utility model has the advantages that intensity is high, and good pressure-resistant performance is in light weight, good heat dissipation effect, and plasticity is strong.
Description
Technical field
Gear pump technical field is the utility model is related to, is specifically one kind gear pump made of iron plastic composite materials
Housing.
Background technology
Traditional gear pump case is made of homogenous material production, and it is present, and high pressure is yielding, problems of crack.
In order to solve the above problems, the thickness of housing can only be continuously increased, this not only adds cost, and it is big, stupid to also result in assembly volume
Heavy and needs are surface-treated, and pollute environment.
Utility model content
For defect present in prior art, the purpose of this utility model is to provide one kind by iron plastic composite materials system
Into gear pump case, there is the advantages that intensity is high, and good pressure-resistant performance is in light weight, good heat dissipation effect, and plasticity is strong.
To achieve the above objectives, the utility model adopts the technical scheme that：One kind tooth made of iron plastic composite materials
Pump case, including main body are taken turns, there is the cavity for being used for accommodating driving gear and driven gear, the both sides difference of main body in the main body
It is provided with the oil inlet and oil-out connected with cavity, the main body is in double-decker, including the ball of the outer wall of outer layer and internal layer
Black iron casting frame, and be a hollow interlayer between outer wall and spheroidal graphite cast-iron skeleton, it is filled with modified PBT in hollow interlayer
(polybutylene terephthalate, polybutylene terephthalate (PBT)) plastic filler.
On the basis of above-mentioned technical proposal, the spheroidal graphite cast-iron skeleton is in grid structure.
On the basis of above-mentioned technical proposal, the surface roughness of the spheroidal graphite cast-iron skeleton is Ra25~Ra100.
On the basis of above-mentioned technical proposal, the outer wall is made up of modified PBT plastics.
On the basis of above-mentioned technical proposal, glass is added with the modified PBT plastic filler.
The beneficial effects of the utility model are：
1st, in the utility model, spheroidal graphite cast-iron skeleton and modified PBT (adding glass) plastic filler are passed through into Shooting Technique
Make iron modeling engagement, a kind of iron plastic composite materials for making full use of iron, modified PBT (adding glass) plastic properties to be formed.Make the material
The product of production has the advantages that intensity is high, and good pressure-resistant performance is in light weight, good heat dissipation effect, and plasticity is strong.
2nd, in the utility model, outer wall is formed by modified PBT (adding glass) plastic injection, therefore its smooth in appearance, neatly, no
Need to carry out paint processing to product surface, reduce cost, and environmental protection.
3rd, in the utility model, the surface roughness of spheroidal graphite cast-iron skeleton is Ra25~Ra100.Nodular cast iron skeleton should not
Presentation quality is sought, roughness is more poor better, so as to add the production efficiency of skeleton blank, reduces casting cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment middle gear pump case；
Fig. 2 be Fig. 1 in A-A to sectional view.
Reference：
1- main bodys；2- cavitys；3- oil inlets；4- oil-outs；5- outer walls；6- spheroidal graphite cast-iron skeletons；7- modified PBT plastics are filled out
Fill thing.
Embodiment
Embodiment of the present utility model is described below in detail, described embodiment example is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.
, it is necessary to illustrate in description of the present utility model, for the noun of locality, if any term " " center ", " transverse direction
(X) ", " longitudinal direction (Y) ", " vertical (Z) ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right",
The indicating position such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " and position relationship be based on
Orientation shown in the drawings or position relationship, it is for only for ease of narration the utility model and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, be constructed and operated with particular orientation, it is impossible to be interpreted as limiting this reality
With new specific protection domain.
With reference to the accompanying drawing of specification, by being further described to specific embodiment of the present utility model, make
The technical solution of the utility model and its advantage are clearer, clear and definite.It is to show to describe embodiment below with reference to accompanying drawing
Example property, it is intended to the utility model is explained, and it is not intended that to limitation of the present utility model.
Referring to shown in Fig. 1 and Fig. 2, the utility model embodiment provides one kind gear pump made of iron plastic composite materials
Housing, including main body 1, the main body 1 is interior to have the cavity 2 for being used for accommodating driving gear and driven gear, the both sides difference of main body 1
It is provided with the oil inlet 3 and oil-out 4 connected with cavity 2, main body 1 is in double-decker, including the outer wall 5 of outer layer and the ball of internal layer
Black iron casting frame 6, specifically, spheroidal graphite cast-iron skeleton 6 is in grid structure, and the surface roughness of spheroidal graphite cast-iron skeleton 6 is
Ra25~Ra100.Preferably, outer wall 5 is made up of modified PBT plastics.It is a hollow folder between outer wall 5 and spheroidal graphite cast-iron skeleton 6
Layer, hollow interlayer is interior to be filled with modified PBT plastic filler 7.Specifically, glass is added with modified PBT plastic filler 7.
A kind of manufacture method for producing said gear pump case is also disclosed in the utility model, comprises the following steps：
Modified PBT plastic filler 7 is put into be heated in the hopper in injection machine by step S1. is pressed to form melt, hopper
Temperature is 240 DEG C, plasticizing pressure 85MPa；
Step S2. preheats to default spheroidal graphite cast-iron skeleton；Temperature control is at 500 DEG C；
Spheroidal graphite cast-iron skeleton after preheating is placed on the predeterminated position of injection mold by step S3., and melt is injected and is molded
In mould, mould-filling time 22S, nozzle temperature is 200 DEG C；
After the solidification of step S4. melts, the pressurize 17S under 80MPa so that modified PBT plastic filler 7 and spheroidal graphite cast-iron bone
Frame 6 is combined with each other, and the part of modified PBT plastic filler 7 and injection mold contact outside forms outer wall 5.
Step S5. is after die casting cooling, you can depanning.
Specifically, spheroidal graphite cast-iron skeleton 6, by weight, including：
C：3.6~3.9 parts；
Si：2.2~2.5 parts；
Mn：0.4~0.6 part；
P：0~0.03 part；
S：0~0.02 part；
Mg：0.02~0.045 part；
RE：0.02~0.04 part.
The spheroidal graphite cast-iron skeleton 6 has high-fire resistance, toughness, fatigue durability, self-lubricating, low-friction coefficient, weatherability, suction
Water rate is low, and only 0.1%, various physical property (including electrical property) are still kept in wet environment.
Below by two embodiments, the utility model is described in further detail：
Embodiment 1 (is counted) in parts by weight
Spheroidal graphite cast-iron skeleton 7 includes：C：3.6 part；Si：2.2 part；Mn：0.4 part；Mg：0.02 part；RE：0.02 part.
Embodiment 2 (is counted) in parts by weight
Spheroidal graphite cast-iron skeleton 7, including：C：3.9 part；Si：2.5 part；Mn：0.6 part；P：0.03 part；S：0.02 part；Mg：
0.045 part；RE：0.04 part.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the utility model
Above-mentioned embodiment is not limited to, it is equal using the improvement and replacement of techniques well known on the basis of the utility model
Fall in the scope of protection of the utility model, it should be limited by each claim.
Claims (5)
1. one kind gear pump case made of iron plastic composite materials, including main body (1), the main body (1) is interior to be had for accommodating
The cavity of driving gear and driven gear (2), the both sides of main body (1) be respectively arranged with the oil inlet (3) that is connected with cavity (2) and
Oil-out (4), it is characterised in that：The main body (1) is in double-decker, including the outer wall (5) of outer layer and the spheroidal graphite cast-iron of internal layer
Skeleton (6), and be a hollow interlayer between outer wall (5) and spheroidal graphite cast-iron skeleton (6), moulded in hollow interlayer filled with modified PBT
Expect filler (7).
2. the gear pump case made of iron plastic composite materials as claimed in claim 1, it is characterised in that：The spheroidal graphite cast-iron
Skeleton (6) is in grid structure.
3. the gear pump case made of iron plastic composite materials as claimed in claim 1, it is characterised in that：The spheroidal graphite cast-iron
The surface roughness of skeleton (6) is Ra25~Ra100.
4. the gear pump case made of iron plastic composite materials as claimed in claim 1, it is characterised in that：The outer wall (5)
It is made up of modified PBT plastics.
5. the gear pump case made of iron plastic composite materials as claimed in claim 1, it is characterised in that：The modified PBT
Glass is added with plastic filler (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720357261.8U CN206636778U (en) | 2017-04-07 | 2017-04-07 | One kind gear pump case made of iron plastic composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720357261.8U CN206636778U (en) | 2017-04-07 | 2017-04-07 | One kind gear pump case made of iron plastic composite materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206636778U true CN206636778U (en) | 2017-11-14 |
Family
ID=60247821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720357261.8U Expired - Fee Related CN206636778U (en) | 2017-04-07 | 2017-04-07 | One kind gear pump case made of iron plastic composite materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206636778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870360A (en) * | 2017-04-07 | 2017-06-20 | 湖北大旗液压有限公司 | A kind of gear pump case being made up of iron plastic composite materials and its manufacture method |
-
2017
- 2017-04-07 CN CN201720357261.8U patent/CN206636778U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870360A (en) * | 2017-04-07 | 2017-06-20 | 湖北大旗液压有限公司 | A kind of gear pump case being made up of iron plastic composite materials and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 |