CN202832574U - Large mining height hydraulic support - Google Patents
Large mining height hydraulic support Download PDFInfo
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- CN202832574U CN202832574U CN 201220450944 CN201220450944U CN202832574U CN 202832574 U CN202832574 U CN 202832574U CN 201220450944 CN201220450944 CN 201220450944 CN 201220450944 U CN201220450944 U CN 201220450944U CN 202832574 U CN202832574 U CN 202832574U
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- hydraulic support
- large mining
- mining height
- height hydraulic
- supporting
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Abstract
The utility model provides a large height hydraulic support. The large hydraulic support comprises a base seat, stand columns, a caving shield, a connecting rod, a top beam, a telescopic beam, and a three-level side protecting device, wherein the bottom ends of the stand columns are installed on the base seat, the top ends of the stand columns are fixedly connected with a nest shield of the top beam, one end of the top beam is in linkage with one end of the telescopic beam, the other end of the telescopic beam is provided with the three-level side protecting device, and the caving shield and the base seat are respectively connected with the connecting rod. The supporting height of the hydraulic support is 4-8 meters, and therefore the supporting range of the large height hydraulic support is increased, exploit demands of extremely thick medium hard coal bed of 6-8 meters are satisfied, recovery rate of coal is raised, and resource waste is reduced.
Description
Technical field
The utility model relates to coal mining supporting field, in particular to a kind of large mining height hydraulic support.
Background technology
The exploitation of high seam is insoluble technical problem in the coal mining field always, because many reasons, the thick coal-layer mining of China can not carry out always comprehensively and effectively.At present, the general coal winning technology that adopts large mining height full-seam mining of exploitation for high seam, through in the last few years to the research of technique of this technique, oneself has solved the key issue of the following thick coal-layer mining of 7.5m, but China Inner Mongol, Shaanxi, the mining area such as Shanxi and Ningxia, the special thick middle hard coal seam reserves of 6m ~ 8m are huge, and generally adopt caving coal technology exploitation for the exploitation of the special thick middle hard coal seam of 6m ~ 8m, this kind coal winning technology has reduced the rate of recovery of coal, caused the huge wasting of resources, so the special thick middle hard coal seam exploitation method of 6m ~ 8m remains great technical barrier.
In the prior art, the coal-mining method of large mining height full-seam mining makes great progress, but the special thick middle hard coal seam of centering 6m ~ 8m, it still exists a lot of deficiencies, particularly along with mining height is constantly climbed to a higher point, for supporting height, supporting intensity and the security performance of large mining height hydraulic support higher requirement has been arranged.
Therefore, designing a kind of large mining height hydraulic support, satisfy the hydraulic support that special thick middle hard coal seam exploitation requires to 6m ~ 8m, is the technical problem of needing solution badly.
The utility model content
For solving the technical problem that exists in the prior art, the purpose of this utility model is, a kind of large mining height hydraulic support is provided, and can satisfy the exploitation requirement of the special thick middle hard coal seam of 6m ~ 8m, thereby improves the rate of recovery of coal, reduces the wasting of resources.
In view of this, the utility model provides a kind of large mining height hydraulic support, comprise base, column, caving shield, connecting rod, back timber, extensible canopy and three-stage side protecting device, the bottom of described column is installed on the described base, the top of described column is fixedly connected with the needling of described back timber, one end of described back timber is connected with an end of described extensible canopy, the other end of described extensible canopy is provided with described three-stage side protecting device, described connecting rod respectively with described caving shield be connected base and be connected, the supporting height of described large mining height hydraulic support is 4m ~ 8m.
In this technical scheme, be optimized by the structure to described large mining height hydraulic support, make its supporting height reach 4m ~ 8m, improved the supporting scope of large mining height hydraulic support, satisfy the exploitation requirement of the special thick middle hard coal seam of 6m ~ 8m, improved the rate of recovery of coal, reduced the wasting of resources.
In technique scheme, preferably, the supporting height of described column is 7.8m.
In this technical scheme, the supporting height of described column is that 7.8m is this large mining height hydraulic support for the best supporting height of the special thick middle hard coal seam exploitation of 6m ~ 8m, and under this height, the rate of recovery that can more effective lifting coal reduces the wasting of resources.
In technique scheme, preferably, described large mining height hydraulic support comprises two described columns, and the center to center distance between two described columns is 1m ~ 1.5m.
In this technical scheme, the heart is in scope hereinto, and the supporting and protection structure that two described columns combine is more stable, has improved security performance, and supporting intensity reaches 20000KN.
In technique scheme, preferably, the center to center distance between two described columns is 1.13m.
In this technical scheme, the center to center distance between two described columns is that 1.13m is optimum center distance, and under this optimum center distance, the supporting and protection structure that two described columns combine is more stable, and security performance is higher.
In technique scheme, preferably, described needling is divided into leading portion and back segment with described back timber, and the ratio of described leading portion and described back segment is between 2.2:1 ~ 2.3:1.
In this technical scheme, described back timber is integral top beam, the ratio that described needling is divided into described leading portion and described back segment is between 2.2:1 ~ 2.3:1, described column upper end is fixedly connected with described needling, described column has supporting role to described back timber, in between this proportional band, the stability of described back timber is higher, has promoted simultaneously large mining height hydraulic support resistance to overturning.
In technique scheme, preferably, the ratio of described leading portion and described back segment is 2.25:1.
In this technical scheme, when the ratio of described leading portion and described back segment was 2.25:1, described back timber stable best promoted large mining height hydraulic support resistance to overturning simultaneously.
In technique scheme, preferably, described three-stage side protecting device length of run is 2m ~ 3.8m.
In this technical scheme, described three-stage side protecting device is deployable or folding, and length of run is 2m ~ 3.8m, can effectively prevent coal wall caving after the expansion, also can play the temporary lining top board and protect rib.
In technique scheme, preferably, described large mining height hydraulic support also comprises protective screening, and described protective screening is installed between two described columns.
In this technical scheme; described protective screening is installed between two described columns; be in order to prevent that coal drops in the progress of coal mining operating personnel to be caused unexpected injury, for operating personnel provide more effective comprehensive protection, improved the security performance of described large mining height hydraulic support.
In technique scheme, preferably, the height of described protective screening is identical with the height of two described columns.
In this technical scheme, the height of the height of described protective screening and described two root posts is identical to be for the operating personnel that make described large mining height hydraulic support obtain more effective more fully protection, thereby improves the security performance of described large mining height hydraulic support.
In technique scheme, preferably, described protective screening is gauze wire cloth.
In this technical scheme, gauze wire cloth has enough intensity and toughness, and the steel wire low cost of manufacture is convenient to replace simultaneously, has reduced the maintenance cost of described protective screening.
In sum, the large mining height hydraulic support that the utility model provides, on the one hand by the center to center distance between the height of described column, the two described columns, the position of back timber needling are optimized, supporting height, supporting intensity and the security performance of described large mining height hydraulic support have been promoted, satisfied the exploitation requirement of the special thick middle hard coal seam of 6m ~ 8m, increase coal recovery rate, reduced the waste of resource; Between described two root posts of described large mining height hydraulic support, increase protective screening on the other hand, promoted the general safety performance of described large mining height hydraulic support.
Description of drawings
Fig. 1 is the structural representation according to large mining height hydraulic support one embodiment described in the utility model;
Fig. 2 is the perspective view of base among Fig. 1;
Fig. 3 is the structural representation of three-stage side protecting device among Fig. 1.
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1 to Fig. 3:
1 three-stage side protecting plate, 2 secondary protecting side plates, 3 one-level face guards, 4 extensible canopies, 5 joists, 6 back timbers, 7 back timber side guard boards, 8 caving shields, 9 caving shield side guard boards, 10 front rods, 11 back links, 12 bases, 13 transfer rack device, 14 foot rests, 15 columns, 16 protective screenings, 17 bottom lifting devices, 18 push units.
The specific embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments the utility model is further described in detail.Need to prove that in the situation of not conflicting, the application's embodiment and the feature among the embodiment can make up mutually.
A lot of details have been set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from mode described here and implement, and therefore, protection domain of the present utility model is not subjected to the restriction of following public specific embodiment.
Fig. 1 is the structural representation according to large mining height hydraulic support one embodiment described in the utility model.
As shown in Figure 1, a kind of large mining height hydraulic support that the utility model provides, comprise base 12, column 15, caving shield 8, connecting rod, back timber 6, extensible canopy 4 and three-stage side protecting device, the bottom of column 15 is installed on the base 12, the top of column 15 is fixedly connected with the needling of back timber 6, one end of back timber 6 is connected with an end of extensible canopy 4, the other end of extensible canopy 4 is provided with the three-stage side protecting device, described connecting rod is connected with base with caving shield 8 respectively and is connected, and the supporting height of large mining height hydraulic support is 4m ~ 8m.
Fig. 2 is the perspective view of base among Fig. 1.
As shown in Figure 2, base 12 is for opening a grade formula rigid unitary base.
Large mining height hydraulic support also comprises, the caving shield 8 that connects back timber 6 other ends, back timber 6 and caving shield 8 both sides are respectively equipped with back timber side guard board 7 and caving shield side guard board 9, extensible canopy 4 belly tracks are provided with joist 5, joist 5 is connected with the three-stage side protecting device by two jack, caving shield 8 and base 12 are connected with front rod respectively to be connected with back link and are connected, form quadric chain, be provided with foot rest 14 on the base 12, be provided with on the base 12 and lift end jack, lift end jack piston rod end connection and lift end piston shoes, formation can be finished the bottom lifting device 17 that bracket base lifts, and on the base 12 advancing jack is set, and advancing jack is connected with push rod, formation can be finished the push unit 18 that support advances, and back timber 6 bellies are provided with the tilting prevention device that prevents from toppling over slippage.
The bottom of base 12 is provided with transfers rack device 13, regulates backing positions, prevents that support stings frame.
Fig. 3 is the structural representation of three-stage side protecting device among Fig. 1.
As shown in Figure 3, the three-stage side protecting device is divided into three-stage side protecting plate 1, secondary protecting side plate 2 and one-level face guard 3, one-level face guard 3 is hinged with extensible canopy 4 front ends, connect two one-level wall supporting jack by two groups little four-bar linkage structures between one-level face guard 3 and the joist 5, one-level face guard 3 front ends and secondary protecting side plate 2 are hinged; Connect two secondary protecting side jack between one-level face guard 3 and the secondary protecting side plate 2; Secondary protecting side plate 2 front ends and three-stage side protecting plate 1 are hinged, are connected two three-stage side protecting jack by two groups of little four-bar linkage structures between secondary protecting side plate 2 and the three-stage side protecting plate 1, and three-stage side protecting device length of run can reach 3.8m, can effectively prevent coal wall caving.Can be parallel with back timber 6 after the three-stage side protecting device launches, effectively the temporary lining top board with protect rib, play effective support action.
Transferring rack device 13 is to connect accent frame jack by cross on the base propons, transfer the frame jack to be connected with cross or transfer the frame jack by mining adjusting after be connected with cross head again, cross head directly is connected the anti-skidding, anti-down of realization support with next support, a side of base is equipped with two accent frame jack simultaneously, is used for regulating the position of support.
Tilting prevention device comprises anti-beaming, connector, anti-down jack, regulate mining chain and be connected first-classly, and anti-beaming is fixed on the back timber 6 by flange arrangement, connects first end and is connected with anti-beaming, and the other end connects anti-down jack; Anti-down jack links to each other with connector by regulating mining chain, and connector links to each other with another support of work plane, forms stable support group, prevents the frame that falls of overlarge mining height hydraulic support.
In this technical scheme, the structure by column is optimized, and makes the supporting height of column reach 4m ~ 8m, improved the supporting scope of large mining height hydraulic support, satisfy the exploitation requirement of the special thick middle hard coal seam of 6m ~ 8m, improved the rate of recovery of coal, reduced the wasting of resources.
In technique scheme, preferably, the supporting height of column 15 is 7.8m.
In this technical scheme, the supporting height of column is that 7.8m is this large mining height hydraulic support for the best supporting height of the special thick middle hard coal seam exploitation of 6m ~ 8m, and under this height, the rate of recovery that can more effective lifting coal reduces the wasting of resources.
In technique scheme, preferably, described large mining height hydraulic support comprises that two center to center distance between described column 15, two root posts 15 are 1m ~ 1.5m.
In this technical scheme, the center to center distance of two root posts is optimized, in this scope, the supporting and protection structure that two root posts combine is more stable, has improved security performance, and supporting intensity reaches 20000KN.
In technique scheme, preferably, the center to center distance between two root posts 15 is 1.13m.
In this technical scheme, the optimum center distance between two root posts is 1.13m, and under this optimum center distance width, the supporting and protection structure that two root posts combine is more stable, and security performance is higher, and supporting intensity reaches 20000KN.
In technique scheme, preferably, needling is divided into leading portion and back segment with back timber 6, and the ratio of leading portion and back segment is between 2.2:1 ~ 2.3:1.
In this technical scheme, back timber is integral top beam, the ratio that needling is divided into leading portion and back segment is between 2.2:1 ~ 2.3:1, the column upper end is fixedly connected with needling, column has supporting role to back timber, in between this proportional band, the stability of back timber is higher, has promoted simultaneously large mining height hydraulic support resistance to overturning.
In technique scheme, preferably, the ratio of leading portion and back segment is 2.25:1.
In this technical scheme, when the ratio of present segment and back segment was 2.25:1, back timber stable best promoted large mining height hydraulic support resistance to overturning simultaneously.
In technique scheme, preferably, three-stage side protecting device length of run is 2m ~ 3.8m.
In this technical scheme, the three-stage side protecting device is deployable or folding, and length of run is 2m ~ 3.8m, can effectively prevent coal wall caving after the expansion, also can play the temporary lining top board and protect rib.
In technique scheme, preferably, large mining height hydraulic support also comprises protective screening 16, and protective screening 16 is installed between two root posts 15.
In this technical scheme; between two root posts, protective screening is installed; be the unexpected injury in order to prevent that coal drops operating personnel is caused in the progress of coal mining, for operating personnel provide more effective comprehensive protection, improved the security performance of large mining height hydraulic support.
In technique scheme, preferably, the height of protective screening 16 is identical with the height of two root posts 15.
In this technical scheme, the height of the height of protective screening and two root posts is identical to be for the operating personnel that make large mining height hydraulic support obtain more effective more fully protection, thereby improves the security performance of large mining height hydraulic support.
In technique scheme, preferably, protective screening 16 is gauze wire cloth.
In this technical scheme, gauze wire cloth has enough intensity and toughness, and the steel wire low cost of manufacture is convenient to replace simultaneously, has reduced the maintenance cost of protective screening.
In sum, the large mining height hydraulic support that the utility model provides, on the one hand by column, two root post center to center distance, back timber needling position is optimized, supporting height, supporting intensity and the security performance of large mining height hydraulic support have been promoted, satisfy the exploitation requirement of the special thick middle hard coal seam of 6m ~ 8m, increased coal recovery rate, reduced the waste of resource; Between two root posts of large mining height hydraulic support, increase protective screening on the other hand, promoted the general safety performance of large mining height hydraulic support.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. large mining height hydraulic support, comprise base (12), column (15), caving shield (8), connecting rod, back timber (6), extensible canopy (4) and three-stage side protecting device, the bottom of described column (15) is installed on the described base (12), the top of described column (15) is fixedly connected with the needling of described back timber (6), one end of described back timber (6) is connected with an end of described extensible canopy (4), the other end of described extensible canopy (4) is provided with described three-stage side protecting device, described connecting rod respectively with described caving shield (8) be connected base (12) and be connected, it is characterized in that the supporting height of described large mining height hydraulic support is 4m ~ 8m.
2. large mining height hydraulic support according to claim 1 is characterized in that, the supporting height of described column (15) is 7.8m.
3. large mining height hydraulic support according to claim 2 is characterized in that, described large mining height hydraulic support comprises two described columns (15), and the center to center distance between described two root posts (15) is 1m ~ 1.5m.
4. large mining height hydraulic support according to claim 3 is characterized in that, the center to center distance between two described columns (15) is 1.13m.
5. large mining height hydraulic support according to claim 4 is characterized in that, described needling is divided into leading portion and back segment with described back timber (6), and the ratio of described leading portion and described back segment is between 2.2:1 ~ 2.3:1.
6. large mining height hydraulic support according to claim 5 is characterized in that, the ratio of described leading portion and described back segment is 2.25:1.
7. large mining height hydraulic support according to claim 6 is characterized in that, described three-stage side protecting device length of run is 2m ~ 3.8m.
8. each described large mining height hydraulic support in 7 according to claim 1 is characterized in that also comprise protective screening (16), described protective screening (16) is installed between two described columns (15).
9. large mining height hydraulic support according to claim 8 is characterized in that, the height of described protective screening (16) is identical with the height of two described columns (15).
10. large mining height hydraulic support according to claim 9 is characterized in that, described protective screening (16) is gauze wire cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450944 CN202832574U (en) | 2012-09-05 | 2012-09-05 | Large mining height hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450944 CN202832574U (en) | 2012-09-05 | 2012-09-05 | Large mining height hydraulic support |
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| Publication Number | Publication Date |
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| CN202832574U true CN202832574U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220450944 Expired - Fee Related CN202832574U (en) | 2012-09-05 | 2012-09-05 | Large mining height hydraulic support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821549A (en) * | 2014-02-24 | 2014-05-28 | 山西晋城无烟煤矿业集团有限责任公司 | Large-mining-height hydraulic support |
| CN104018866A (en) * | 2014-05-12 | 2014-09-03 | 山东鲁南装备制造有限公司 | Double four-bar linkage mechanism low-position blasting coal hydraulic support |
| CN107605521A (en) * | 2017-08-21 | 2018-01-19 | 上海交通大学 | Support top hydraulic shield support |
| CN110094222A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of advanced hydraulic prop in underground mine use double-guide-bar type erosion control tunnel |
| CN114856658A (en) * | 2022-01-28 | 2022-08-05 | 北京天玛智控科技股份有限公司 | Hydraulic support system and control method thereof |
-
2012
- 2012-09-05 CN CN 201220450944 patent/CN202832574U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821549A (en) * | 2014-02-24 | 2014-05-28 | 山西晋城无烟煤矿业集团有限责任公司 | Large-mining-height hydraulic support |
| CN104018866A (en) * | 2014-05-12 | 2014-09-03 | 山东鲁南装备制造有限公司 | Double four-bar linkage mechanism low-position blasting coal hydraulic support |
| CN107605521A (en) * | 2017-08-21 | 2018-01-19 | 上海交通大学 | Support top hydraulic shield support |
| CN107605521B (en) * | 2017-08-21 | 2019-10-08 | 上海交通大学 | Support top hydraulic shield support |
| CN110094222A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of advanced hydraulic prop in underground mine use double-guide-bar type erosion control tunnel |
| CN114856658A (en) * | 2022-01-28 | 2022-08-05 | 北京天玛智控科技股份有限公司 | Hydraulic support system and control method thereof |
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| 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: 20130327 Termination date: 20160905 |
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| CF01 | Termination of patent right due to non-payment of annual fee |