CN202894259U - Large steel casting rocker arm - Google Patents
Large steel casting rocker arm Download PDFInfo
- Publication number
- CN202894259U CN202894259U CN 201220475540 CN201220475540U CN202894259U CN 202894259 U CN202894259 U CN 202894259U CN 201220475540 CN201220475540 CN 201220475540 CN 201220475540 U CN201220475540 U CN 201220475540U CN 202894259 U CN202894259 U CN 202894259U
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- CN
- China
- Prior art keywords
- main arm
- arm
- principal arm
- casting
- steel casting
- 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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Abstract
The utility model discloses a large steel casting rocker arm which comprises a left main arm and a right main arm, wherein one end of the left main arm and one end of the right main arm are respectively provided with an opening groove, the other end of the left main arm is connected with the other end of the right main arm through a fixing shaft, and a connection position is provided with an air outlet. The left main arm and the right main arm are provided with cooling iron and feeder heads, and the cooling iron are distributed on the upper end faces and inner sides of the left main arm and the right main arm. According to the structure, the large steel casting rocker arm has the advantages of being capable of preventing short run, cold shut, shrinkage cavities, shrinkage porosities, fissures, burnt-on sand and other defects of steel castings, simple in structure, convenient to use and the like.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of large-scale steel-casting rocking arm.
Background technology
The mechanical property ratio cast iron of cast steel is high, but its casting character is poorer than cast iron.Because the fusing point of cast steel is higher, the poor fluidity of the easy oxidation of molten steel, molten steel, to shrink greatly, its body shrinkage factor is 10～14%, linear shrinkage is 1.8～2.5%.For preventing that steel-casting from producing the defectives such as misrun, cold shut, shrinkage cavity and porosity, crackle and scab, need to carry out PROCESS FOR TREATMENT to cast iron by a kind of dedicated rocker arm.
In view of this, the inventor has this case to produce for the defects further investigation of the medium-and-large-sized steel-casting rocking arm of prior art then.
The utility model content
In order to overcome above shortcomings part in the prior art, the purpose of this utility model is to provide large-scale steel-casting rocking arm a kind of simple in structure, easy to operate.
In order to reach above-mentioned purpose, the utility model adopts following concrete technical scheme: a kind of large-scale steel-casting rocking arm, comprise left principal arm and right principal arm, one end of described left principal arm and right principal arm is provided with open slot, the other end interconnects by fixed axis, and the junction has venthole, cools off iron, rising head being provided with of left principal arm and right principal arm, and cooling iron is distributed in upper surface and the inboard of left and right principal arm.
Compared with prior art, the utlity model has following outstanding advantages and effect: owing to being provided with above structure, the characteristics such as this large-scale steel-casting rocking arm can produce the defectives such as misrun, cold shut, shrinkage cavity and porosity, crackle and scab for preventing steel-casting, and simple in structure, and is easy to use.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1;
The utility model is described in further detail below in conjunction with accompanying drawing.
The specific embodiment
In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.
As shown in Figure 1, a kind of large-scale steel-casting rocking arm, comprise left principal arm 1 and right principal arm 2, one end of described left principal arm 1 and right principal arm 2 is provided with open slot 3, the other end interconnects by fixed axis 4, and the junction has venthole 5, cool off iron 6, rising head 7 being provided with of left principal arm 1 and right principal arm 2, cooling iron 6 is distributed in left and right principal arm 1,2 upper surface and inboard, this large-scale steel-casting rocking arm can produce the defectives such as misrun, cold shut, shrinkage cavity and porosity, crackle and scab for preventing steel-casting, and simple in structure, the characteristics such as easy to use.
It should be noted that at last: above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (1)
1. large-scale steel-casting rocking arm, it is characterized in that: comprise left principal arm and right principal arm, one end of described left principal arm and right principal arm is provided with open slot, the other end interconnects by fixed axis, and the junction has venthole, cool off iron, rising head being provided with of left principal arm and right principal arm, cooling iron is distributed in upper surface and the inboard of left and right principal arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475540 CN202894259U (en) | 2013-01-25 | 2013-01-25 | Large steel casting rocker arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475540 CN202894259U (en) | 2013-01-25 | 2013-01-25 | Large steel casting rocker arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894259U true CN202894259U (en) | 2013-04-24 |
Family
ID=48114978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220475540 Expired - Fee Related CN202894259U (en) | 2013-01-25 | 2013-01-25 | Large steel casting rocker arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570889A (en) * | 2022-02-24 | 2022-06-03 | 天地上海采掘装备科技有限公司 | Casting process of rocker arm shell of ultra-thick coal seam mining machine |
-
2013
- 2013-01-25 CN CN 201220475540 patent/CN202894259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570889A (en) * | 2022-02-24 | 2022-06-03 | 天地上海采掘装备科技有限公司 | Casting process of rocker arm shell of ultra-thick coal seam mining machine |
| CN114570889B (en) * | 2022-02-24 | 2024-05-03 | 天地上海采掘装备科技有限公司 | Casting technology of rocker arm shell of super-thick coal seam coal mining machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20160125 |
|
| EXPY | Termination of patent right or utility model |