CN203067007U - Coal mine hydraulic support telescopic beam device - Google Patents
Coal mine hydraulic support telescopic beam device Download PDFInfo
- Publication number
- CN203067007U CN203067007U CN 201220506732 CN201220506732U CN203067007U CN 203067007 U CN203067007 U CN 203067007U CN 201220506732 CN201220506732 CN 201220506732 CN 201220506732 U CN201220506732 U CN 201220506732U CN 203067007 U CN203067007 U CN 203067007U
- Authority
- CN
- China
- Prior art keywords
- extensible canopy
- back timber
- telescopic beam
- coal mine
- mine hydraulic
- 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 coal mine hydraulic support telescopic beam device which is characterized by comprising a top beam. A telescopic beam is arranged on the front portion of the top beam. One end of the telescopic beam is hinged with a telescopic beam jack. The other end of the telescopic beam jack is hinged with the top beam. A limiting device used for achieving upwarp of the telescopic beam is arranged between the telescopic beam and the top beam. The telescopic beam device is not stressed in the stretching out process and begins to upwarp for filling after stretching out fully, filling effect is obvious, filling force is large, service life of the telescopic beam is long, and installing and dismantling are convenient.
Description
Technical field
The utility model relates to a kind of technical field of support apparatus in coal mine, and specifically a kind of coal mine fully-mechanized mining working is used for the telescopic boom device of immediate support top board.
Background technology
The coal mine hydraulic supporting telescopic boom device is the important mechanism of coal mine fully-mechanized mining working hydraulic support.After coal-winning machine passes through, can stretch out extensible canopy timely, can play the effect of immediate support to top board (particularly unsettled top board).
At present, following problem has in use appearred in the bottom lifting device of the type:
(1) after extensible canopy slowly tilted to stretch out certain stroke, extensible canopy began to connect the top, and namely extensible canopy begins stressedly, finally causes the extensible canopy distortion;
(2) after extensible canopy stretches out whole strokes, the passive top that connects of extensible canopy, namely extensible canopy can not directly connect the top, but waits for roof caving.
Summary of the invention
At above deficiency, the purpose of this utility model is to provide a kind of coal mine hydraulic supporting telescopic boom device, and the utility model extensible canopy is installed in the back timber, be provided with the stopping means of realizing that extensible canopy upwarps between back timber and the extensible canopy, have the top of connecing effect obviously, connect advantages such as top power is big.
For achieving the above object, the technical solution of the utility model is:
A kind of coal mine hydraulic supporting telescopic boom device comprises that back timber, back timber front portion are provided with extensible canopy, and an end of described extensible canopy is hinged with the extensible canopy jack, and the other end of extensible canopy jack is hinged on the back timber, is provided with stopping means between extensible canopy and the back timber.
Further, described stopping means comprises the spacer pin that is positioned at the close relatively back timber end of extensible canopy and is positioned at limited block corresponding with spacer pin on the back timber.
Further, described back timber front end is provided with the port that cooperates with extensible canopy, and extensible canopy is slidingly located in the back timber.
The beneficial effects of the utility model show:
The utility model extensible canopy stretches out forward under the active force of jack, and the spacer pin of extensible canopy contacts with the limited block of back timber upper end, forms moment of torsion, extensible canopy is had upwarp the action that connects the top.
Compared with prior art, extensible canopy is installed in the back timber, and the back timber upper end is provided with limited block, extensible canopy is equipped with spacer pin, extensible canopy stretches out forward under the effect of jack, the spacer pin of extensible canopy contacts with the limited block of back timber upper end, forms moment of torsion, extensible canopy is had upwarp the action that connects the top.The utility model telescopic boom device does not stress in the process of stretching out, begin to upwarp after all stretching out connect the top, connect the top effect obviously, connect that top power is big, the extensible canopy long service life, be convenient to install, dismounting.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: 1 is that extensible canopy, 2 is that spacer pin, 3 is that back timber, 4 is the extensible canopy jack.
The specific embodiment:
Be described further with reference to the accompanying drawings, as scheme now by reference to the accompanying drawings the utility model to be further described, Fig. 1 is a kind of enforcement of the present utility model.
As shown in Figure 1, the coal mine hydraulic supporting telescopic boom device comprises connecting extensible canopy 1, spacer pin 2, back timber 3, extensible canopy jack 4.
Described extensible canopy 1 is installed in the back timber 3, and sheathed such as sliding, this slip is sheathed can be provided with the port that cooperates with extensible canopy 1 by back timber 3, and so-called cooperation refers to that extensible canopy 1 can slide but can not rock in port under the drive of extensible canopy jack 4.
The front end of extensible canopy 1 is hinged with extensible canopy jack 4, and the other end of extensible canopy jack 4 is hinged on the back timber 3.
Be provided with between back timber 3 and the extensible canopy 1 for the stopping means of realizing that extensible canopy 1 upwarps, described stopping means comprises the limited block that is positioned at back timber 3 upper ends and is positioned at spacer pin 2 on the extensible canopy 1.
During use, extensible canopy 1 stretches out forward under the active force of extensible canopy jack 4, and the spacer pin 2 of extensible canopy 1 contacts with the limited block of back timber 3 upper ends, forms moment of torsion, extensible canopy 1 is had upwarp the action that connects the top; Extensible canopy 1 does not stress in the process of stretching out, begin to upwarp after all stretching out connect the top, connect the top effect obviously, connect that top power is big, the extensible canopy long service life, be convenient to install, dismounting.
Claims (3)
1. coal mine hydraulic supporting telescopic boom device, it is characterized in that comprise that back timber, back timber front portion are provided with extensible canopy, an end of described extensible canopy is hinged with the extensible canopy jack, the other end of extensible canopy jack is hinged on the back timber, is provided with stopping means between extensible canopy and the back timber.
2. coal mine hydraulic supporting telescopic boom device according to claim 1 is characterized in that, described stopping means comprise be positioned at extensible canopy relatively near the spacer pin of back timber end and
Be positioned at limited block corresponding with spacer pin on the back timber.
3. coal mine hydraulic supporting telescopic boom device according to claim 1 is characterized in that, described back timber front end is provided with the port that cooperates with extensible canopy, and extensible canopy is slidingly located in the back timber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506732 CN203067007U (en) | 2012-09-29 | 2012-09-29 | Coal mine hydraulic support telescopic beam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506732 CN203067007U (en) | 2012-09-29 | 2012-09-29 | Coal mine hydraulic support telescopic beam device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067007U true CN203067007U (en) | 2013-07-17 |
Family
ID=48765816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220506732 Expired - Fee Related CN203067007U (en) | 2012-09-29 | 2012-09-29 | Coal mine hydraulic support telescopic beam device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401969A (en) * | 2015-11-30 | 2016-03-16 | 山东新煤机械装备股份有限公司 | Light-type under-well tunneling bracket |
-
2012
- 2012-09-29 CN CN 201220506732 patent/CN203067007U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401969A (en) * | 2015-11-30 | 2016-03-16 | 山东新煤机械装备股份有限公司 | Light-type under-well tunneling bracket |
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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: 20130717 Termination date: 20170929 |