CN204371391U - Two column protected type hydraulic support quadric chain fixed structure - Google Patents
Two column protected type hydraulic support quadric chain fixed structure Download PDFInfo
- Publication number
- CN204371391U CN204371391U CN201420797245.7U CN201420797245U CN204371391U CN 204371391 U CN204371391 U CN 204371391U CN 201420797245 U CN201420797245 U CN 201420797245U CN 204371391 U CN204371391 U CN 204371391U
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- CN
- China
- Prior art keywords
- hydraulic support
- front rod
- back link
- caving shield
- pin joint
- 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 kind of two column protected type hydraulic support quadric chain fixed structure, the both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of front rod and back link respectively with caving shield and base hinged, the front rod of hydraulic support side is removed, after being removed by the pin joint of the upper end of this rear flank connecting rod and caving shield, is loaded on the upper end of former front rod and the pin joint position of caving shield.When can be applied to all two column protected type hydraulic support balanced controls outer load test, quadric chain is fixing, use flexible, easy to operate, do not need to increase outside frock.
Description
Technical field
The utility model relates to a kind of experimental technique of balanced controls of two column protected type hydraulic support, particularly relates to a kind of two column protected type hydraulic support quadric chain fixed structure.
Background technology
The balanced controls of two column protected type hydraulic support play vital effect in two column protected type hydraulic support.Along with the wideling popularize and applying at high-productivity faces of two column protected type high-end hydraulic support, the test for balanced controls is also more and more important, GB25974 and EN1804 test stone all specify only in balanced controls and loads, the not outer requirement loaded.And balanced controls load test method outward and just need the fixing of hydraulic support double leval jib.
In prior art, be all by increasing outside frock, hydraulic support double leval jib is fixed.
Utility model content
The purpose of this utility model is to provide and a kind ofly uses flexible, easy to operate, not need to increase outside frock two column protected type hydraulic support quadric chain fixed structure.
The purpose of this utility model is achieved through the following technical solutions:
Two column protected type hydraulic support quadric chain fixed structure of the present utility model, the both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of described front rod and back link respectively with caving shield and base hinged, the front rod of hydraulic support side is removed, after being removed by the pin joint of the upper end of this rear flank connecting rod and caving shield, is loaded on the upper end of former front rod and the pin joint position of caving shield.
The technical scheme provided as can be seen from above-mentioned the utility model, the two column protected type hydraulic support quadric chain fixed structure that the utility model embodiment provides, the both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of described front rod and back link respectively with caving shield and base hinged, the front rod of hydraulic support side is removed, after being removed by the pin joint of the upper end of this rear flank connecting rod and caving shield, is loaded on the upper end of former front rod and the pin joint position of caving shield.When can be applied to all two column protected type hydraulic support balanced controls outer load test, quadric chain is fixing, range of application and prospect boundless; Use flexible, easy to operate, do not need to increase outside frock.
Accompanying drawing explanation
The structural representation of the two column protected type hydraulic support quadric chain fixed structure that Fig. 1 provides for the utility model embodiment.
In figure: 1, base, 2, back link, 3, front rod, 4, caving shield.
Detailed description of the invention
To be described in further detail the utility model embodiment below.
Two column protected type hydraulic support quadric chain fixed structure of the present utility model, its preferably detailed description of the invention be:
The both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of described front rod and back link respectively with caving shield and base hinged, the front rod of hydraulic support side is removed, after being removed by the pin joint of the upper end of this rear flank connecting rod and caving shield, is loaded on the upper end of former front rod and the pin joint position of caving shield;
Or, the back link of hydraulic support side is removed, after being removed by the pin joint of the upper end of this side front rod and caving shield, is loaded on the upper end of former back link and the pin joint position of caving shield;
Or, the front rod of hydraulic support side is removed, after being removed by the pin joint of the lower end of this rear flank connecting rod and base, is loaded on the lower end of former front rod and the pin joint position of base;
Or, the back link of hydraulic support side is removed, after being removed by the pin joint of the lower end of this side front rod and base, is loaded on the lower end of former back link and the pin joint position of base.
According to the outer load test of balanced controls, two column protected type hydraulic support quadric chain fixed structure of the present utility model, can need that to be carried out by hydraulic support quadric chain in certain limit fixing.Make balance jack tension by external force, make piston rod extend out to the unloading of rod end chamber safety valve, piston rod is drawn out at least 30mm.Make balance jack pressurized again, make piston rod be retracted to the unloading of plunger shaft safety valve, piston rod is pushed back at least 30mm.Balance jack tension, pressure are once a circulation.
Specific embodiment:
To export Australian ZY12200/16/33 type two column protected type hydraulic support.
As shown in Figure 1, the front rod on the right side of hydraulic support is removed, remove right back connecting rod and caving shield back link hinging pin shaft.Adjusting pole height, enables right back small end be connected with caving shield front rod hinge hole.Utilize the component of hydraulic support self that caving shield, front-rear linkage, base are fixed into integrated member, caving shield and the balanced controls pin joint on caving shield is fixed.Column cavity of resorption gives pressure, and column extends, and back timber faces upward head, and balance jack is extended, and balance jack piston rod is drawn out, and rod end chamber safety valve unloads; Upright post upper cavity gives pressure, and column shrinks, and back timber is bowed, and balance jack shortens, and balance jack piston rod is pushed back, and plunger shaft safety valve unloads.
The beneficial effect that technical solutions of the utility model are brought:
When the utility model can be applied to all two column protected type hydraulic support balanced controls outer load test, quadric chain is fixing, range of application and prospect boundless;
The utility model use flexible, easy to operate, do not need to increase outside frock.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. a two column protected type hydraulic support quadric chain fixed structure, the both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of described front rod and back link respectively with caving shield and base hinged, it is characterized in that, the front rod of hydraulic support side is removed, after being removed by the pin joint of the upper end of this rear flank connecting rod and caving shield, is loaded on the upper end of former front rod and the pin joint position of caving shield.
2. a two column protected type hydraulic support quadric chain fixed structure, the both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of described front rod and back link respectively with caving shield and base hinged, it is characterized in that, the back link of hydraulic support side is removed, after being removed by the pin joint of the upper end of this side front rod and caving shield, is loaded on the upper end of former back link and the pin joint position of caving shield.
3. a two column protected type hydraulic support quadric chain fixed structure, the both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of described front rod and back link respectively with caving shield and base hinged, it is characterized in that, the front rod of hydraulic support side is removed, after being removed by the pin joint of the lower end of this rear flank connecting rod and base, is loaded on the lower end of former front rod and the pin joint position of base.
4. a two column protected type hydraulic support quadric chain fixed structure, the both sides of hydraulic support are respectively equipped with front rod and back link, the top and bottom of described front rod and back link respectively with caving shield and base hinged, it is characterized in that, the back link of hydraulic support side is removed, after being removed by the pin joint of the lower end of this side front rod and base, is loaded on the lower end of former back link and the pin joint position of base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797245.7U CN204371391U (en) | 2014-12-15 | 2014-12-15 | Two column protected type hydraulic support quadric chain fixed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797245.7U CN204371391U (en) | 2014-12-15 | 2014-12-15 | Two column protected type hydraulic support quadric chain fixed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371391U true CN204371391U (en) | 2015-06-03 |
Family
ID=53327620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420797245.7U Expired - Fee Related CN204371391U (en) | 2014-12-15 | 2014-12-15 | Two column protected type hydraulic support quadric chain fixed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500120A (en) * | 2014-12-15 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Fixing structure for four-connecting rod mechanism of two-leg shield hydraulic support |
-
2014
- 2014-12-15 CN CN201420797245.7U patent/CN204371391U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500120A (en) * | 2014-12-15 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Fixing structure for four-connecting rod mechanism of two-leg shield hydraulic support |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161215 |