CN201705375U - Four-column chock-shield large-mining-height mesh-laying hydraulic support - Google Patents
Four-column chock-shield large-mining-height mesh-laying hydraulic support Download PDFInfo
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- CN201705375U CN201705375U CN201020230078XU CN201020230078U CN201705375U CN 201705375 U CN201705375 U CN 201705375U CN 201020230078X U CN201020230078X U CN 201020230078XU CN 201020230078 U CN201020230078 U CN 201020230078U CN 201705375 U CN201705375 U CN 201705375U
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Abstract
The utility model discloses a four-column chock-shield large-mining-height mesh-laying hydraulic support which comprises a base, a top beam and a shield beam. Two stand columns are arranged between the top beam and the base. The supporting height of the support is more than or equal to 3.8m. A mesh laying mechanism is arranged at the rear part of the support and comprises a tail beam which is hinged at the rear end of the shied beam and at least one mesh roll which is arranged at the rear part of the base. A tail beam jack is arranged between the shield beam and the tail beam. An inserting plate and an inserting plate jack are arranged in the tail beam. Since the large mining height technology is organically combined with the mesh laying technology, the mesh laying space at the rear part is increased. Thereby, the utility model has the advantages that the requirements on the output can be satisfied, the mining efficiency is improved and the coal recovery rate is improved.
Description
Technical field
The utility model relates to a kind of hydraulic support, relates in particular to a kind of four post support shield type large mining height lapping hydraulic bracket.
Background technology
Hydraulic support is the indispensable suspension device in the coal mining, and lapping exploitation and top coal caving are two kinds of production practices commonly used of the prior art.
Because top coal caving work efficiency height, cost of winning are low, be widely used in the prior art.But the caving coal recovery is low, the coal seam is inflammable.
And lapping exploitation work efficiency is low, cost is high, thus big not as good as caving coal promoted extension, but higher to the rate of recovery of coal.3.5 meters of the general height of support with mesh-layingdevice of the prior art use highly about 3 ~ 3.3 meters.
There is following shortcoming at least in above-mentioned prior art:
Production efficiency and coal recovery rate can not be taken into account.
The utility model content
The purpose of this utility model provides a kind of production efficiency height, four post support shield type large mining height lapping hydraulic bracket that coal recovery rate is high.
The purpose of this utility model is achieved through the following technical solutions:
Four post support shield type large mining height lapping hydraulic bracket of the present utility model comprises base, back timber, caving shield, is provided with two root posts between back timber and the base, and the supporting height of this support is more than or equal to 3.8m, and the rear portion of this support is provided with net laying mechanism.
The technical scheme that provides by above-mentioned the utility model as can be seen, four post support shield type large mining height lapping hydraulic bracket described in the utility model because the supporting height of this support is more than or equal to 3.8m, the rear portion of this support is provided with net laying mechanism.Big mining height technology and lapping technology are organically combined, lapping space, rear portion is strengthened.Both can satisfy the output requirement, improve production efficiency, and can improve coal recovery rate again.
Description of drawings
Fig. 1 is the structural representation of the utility model four post support shield type large mining height lapping hydraulic bracket.
The specific embodiment
Four post support shield type large mining height lapping hydraulic bracket of the present utility model, its preferable specific embodiment as shown in Figure 1, comprise base 1, back timber 2, caving shield 3, be provided with 4 root posts 4 between back timber 2 and the base 1, the supporting height of this support is more than or equal to 3.8m, and the rear portion of this support is provided with net laying mechanism.
Net laying mechanism can comprise tail boom 5 that is articulated in caving shield 3 rear ends and at least one net volume 6 of being located at base 1 rear portion, is provided with tail boom jack 7 between caving shield 3 and the tail boom 5, forms retaining cash mechanism.The last pivot angle degree of tail boom 5 is 10～15 °, and bottom angle is 40～45 °.Can also be provided with plate 8 and plate jack 9 in the tail boom 5.
Push unit can be equipped with in the centre of base 1, and the front end of push unit is connected with the front scrapping plate conveyer.
Standard code belongs to big mining height hydraulic support greater than 3.8 meters, the utility model organically combines (support height reaches 7.5m) with big mining height technology and lapping technology, high seam is carried out separate zone production, and do not adopt top coal caving, can satisfy output and require (as more than 300,500 1,000 ten thousand tons), improve mine economic profit; Adopt the separate zone production technology, improve coal recovery rate again.Improve working surface production efficient and resource recovery, satisfied demand safe, efficient, high yield.
In the utility model, the big more original support with mesh-layingdevice of mining height back space, lapping space, rear portion is bigger, for the rear portion provides bigger operating space, is easy to networking.Support height can be applied in supporting height more than 3.8 meters, adapt to thick coal-layer mining needs, improved working surface production efficient and resource recovery, satisfy safety, efficiently, the demand of high yield.
The above; it only is the preferable specific embodiment of the utility model; 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 variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (5)
1. a four post support shield type large mining height lapping hydraulic bracket comprises base, back timber, caving shield, is provided with 4 root posts between back timber and the base, it is characterized in that, the supporting height of this support is more than or equal to 3.8m, and the rear portion of this support is provided with net laying mechanism.
2. four post support shield type large mining height lapping hydraulic bracket according to claim 1, it is characterized in that, described net laying mechanism comprises the tail boom that is articulated in described caving shield rear end and is located at least one net volume at described base rear portion, is provided with the tail boom jack between described caving shield and the tail boom.
3. four post support shield type large mining height lapping hydraulic bracket according to claim 2 is characterized in that, the last pivot angle degree of described tail boom is 10～15 °, and bottom angle is 40～45 °.
4. four post support shield type large mining height lapping hydraulic bracket according to claim 3 is characterized in that, is provided with plate and plate jack in the described tail boom.
5. according to each described four post support shield type large mining height lapping hydraulic bracket of claim 1 to 4, it is characterized in that push unit is equipped with in the centre of described base, the front end of described push unit is connected with the front scrapping plate conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020230078XU CN201705375U (en) | 2010-06-10 | 2010-06-10 | Four-column chock-shield large-mining-height mesh-laying hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020230078XU CN201705375U (en) | 2010-06-10 | 2010-06-10 | Four-column chock-shield large-mining-height mesh-laying hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705375U true CN201705375U (en) | 2011-01-12 |
Family
ID=43442529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020230078XU Expired - Lifetime CN201705375U (en) | 2010-06-10 | 2010-06-10 | Four-column chock-shield large-mining-height mesh-laying hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705375U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871355A (en) * | 2010-06-10 | 2010-10-27 | 中煤北京煤矿机械有限责任公司 | Four post support shield type large mining height mesh-placement hydraulic support |
| CN106351679A (en) * | 2016-11-09 | 2017-01-25 | 安徽理工大学 | Soil similar coal working face fully sealed shield support device |
-
2010
- 2010-06-10 CN CN201020230078XU patent/CN201705375U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871355A (en) * | 2010-06-10 | 2010-10-27 | 中煤北京煤矿机械有限责任公司 | Four post support shield type large mining height mesh-placement hydraulic support |
| CN101871355B (en) * | 2010-06-10 | 2013-02-13 | 中煤北京煤矿机械有限责任公司 | Four post support shield type large mining height mesh-placement hydraulic support |
| CN106351679A (en) * | 2016-11-09 | 2017-01-25 | 安徽理工大学 | Soil similar coal working face fully sealed shield support device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110112 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |