CN201671640U - Hydraulic support frame with sealed needling - Google Patents
Hydraulic support frame with sealed needling Download PDFInfo
- Publication number
- CN201671640U CN201671640U CN2010200469384U CN201020046938U CN201671640U CN 201671640 U CN201671640 U CN 201671640U CN 2010200469384 U CN2010200469384 U CN 2010200469384U CN 201020046938 U CN201020046938 U CN 201020046938U CN 201671640 U CN201671640 U CN 201671640U
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- CN
- China
- Prior art keywords
- needling
- hydraulic support
- support frame
- sealed
- utility
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- 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 hydraulic support frame with a sealed needling, which comprises a hydraulic support frame body, wherein the lower part of the hydraulic support frame body is movably arranged in a needling of a base, wherein molded filling blocks are filled and arranged between a gap formed between the outer wall of the lower part of the hydraulic support frame body and the inner wall of the needling in a sealed way. Through filling the molded filling blocks in the gap in the needling of the hydraulic support frame, the utility model can prevent coal dust, gangue broken stones and the like from falling into the needling, can not obstruct the movement of the support frame in the needling, has high construction efficiency, can easily reach the quality requirement, can greatly shorten the underground emergency repair and upright post replacement time, and has the characteristics of fire resistance, water prevention and static resistance.
Description
Technical field
The utility model relates to a kind of coal mine underground hydraulic support frame that is used for, especially a kind of hydraulic support with sealed needling.
Background technology
Hydraulic support is the supporting mechanism that adopts under the coal mine.Hydraulic support column is installed in the needling of base by bearing pin.The support needling is an open by design, the inside dimension more complicated of needling, when underground work, often fall into simultaneously a large amount of coal dust ickings, after the column compacting that is moved again, the hardness that become such as ickings that are compacted after long-time are very high, seriously influenced moving of column, caused obstruction, when serious column can't normally have been moved to crane.Particularly when the maintain and replace column, the coal dust ickings that is compacted in the needling is very difficult, has seriously influenced maintenance time in addition.
The utility model content
At the problem of above-mentioned existence, the object of the present invention is to provide a kind of coal dust ickings that can prevent to deposit, and the hydraulic support with sealed needling of energy portable propelling.
For achieving the above object, a kind of hydraulic support with sealed needling of the utility model comprises the hydraulic support body, and its underpart is movably arranged in the needling of base, wherein, sealing-plug is equipped with molded, filled between the formed gap of inwall of the outer wall of hydraulic support body bottom and needling.
Further, the expanded material of described molded, filled employing with certain hot strength and tension fracture elongation rate made.
The utility model is by filling molded, filled in the space in the needling of hydraulic support, can prevent that not only coal dust, crushed gangue etc. from falling into needling, also do not hinder support moving in needling, its efficiency of construction height, be easy to reach quality requirement, shorten the down-hole repairing greatly and changed the time of column, and had fire-retardant, waterproof, anlistatig characteristics.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
As shown in Figure 1, a kind of hydraulic support of the utility model the utility model with sealed needling, comprise hydraulic support body 1, its underpart is movably arranged in the needling 5 of base 4 by bearing pin 2, wherein, sealing-plug is equipped with molded, filled 3 between the formed gap of inwall of the outer wall of hydraulic support body 1 bottom and needling 5.
Adopt the mould one for molded, filled 3 or be separately made, it can be multiple model according to the size design in gap between hydraulic support body 1 bottom and the needling 5, and adopt for molded, filled 3 expanded material to make with certain hot strength and tension fracture elongation rate, it has fire-retardant, antistatic property, as polyurethane foam plastics, in the raw material preparing process, can add catalyzer (as dibutyl tin laurate or triethylene diamine or triethanolamine) simultaneously, crosslinking agent (as the ethylenediamine polyethers), blowing agent (as R-113 or R-11 and water), foam stabiliser (as silicone oil), to adjust the hot strength P and the tension fracture elongation rate δ of foamed plastic, to satisfy technological requirement.Hot strength and elongation rate can realize that hot strength P selectable range is by the component that changes modified polyurethane material: 0＜P≤50Mpa, tension fracture elongation rate δ selectable range are 0%＜δ≤700%.
The utility model is by molded, filled 3 prefabricated gap that seals between obstruction hydraulic support and the needling, slit control meets the requirements, it moves flexible voluntarily with column, and have convenient install, be fit to extensive support equipped, can fast quick-detach, functions such as high water proofing property, it adapts to down-hole high pressure hydraulic giant cleaning work environment requirement, for the underground equipment repairing is saved time.Molded, filled 3 cost is low in the utility model, and it can prevent that not only coal dust, crushed gangue etc. from falling into needling, has certain elasticity and intensity simultaneously, does not hinder support moving in needling, very convenient site operation, maintenance.
Claims (2)
1. hydraulic support with sealed needling, this hydraulic support comprises the hydraulic support body, its underpart is movably arranged in the needling of base, it is characterized in that, sealing-plug is equipped with molded, filled between the formed gap of inwall of the outer wall of hydraulic support body bottom and needling.
2. the hydraulic support with sealed needling as claimed in claim 1 is characterized in that, the expanded material that described molded, filled employing has certain hot strength and tension fracture elongation rate is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200469384U CN201671640U (en) | 2010-01-19 | 2010-01-19 | Hydraulic support frame with sealed needling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200469384U CN201671640U (en) | 2010-01-19 | 2010-01-19 | Hydraulic support frame with sealed needling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671640U true CN201671640U (en) | 2010-12-15 |
Family
ID=43329052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200469384U Expired - Fee Related CN201671640U (en) | 2010-01-19 | 2010-01-19 | Hydraulic support frame with sealed needling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536289A (en) * | 2012-03-07 | 2012-07-04 | 中煤北京煤矿机械有限责任公司 | Two-column shielding large-center distance and ultrahigh-working resistance hydraulic support for medium-thickness coal seam |
-
2010
- 2010-01-19 CN CN2010200469384U patent/CN201671640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536289A (en) * | 2012-03-07 | 2012-07-04 | 中煤北京煤矿机械有限责任公司 | Two-column shielding large-center distance and ultrahigh-working resistance hydraulic support for medium-thickness coal seam |
| CN102536289B (en) * | 2012-03-07 | 2014-04-02 | 中煤北京煤矿机械有限责任公司 | Two-column shielding large-center distance and ultrahigh-working resistance hydraulic support for medium-thickness coal seam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20140119 |