CN110748364B - Caving coal hydraulic support breaker - Google Patents
Caving coal hydraulic support breaker Download PDFInfo
- Publication number
- CN110748364B CN110748364B CN201910980692.3A CN201910980692A CN110748364B CN 110748364 B CN110748364 B CN 110748364B CN 201910980692 A CN201910980692 A CN 201910980692A CN 110748364 B CN110748364 B CN 110748364B
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- Prior art keywords
- fore
- flexible
- crushing
- hydraulic support
- telescopic
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
Abstract
The invention provides a caving coal hydraulic support crushing device, which comprises a base, a top beam, a front telescopic upright post, a rear telescopic upright post and a top block device, wherein the top block device is arranged on the base; the top block device comprises a front telescopic top column, a rear telescopic top column, a crushing plate at the upper ends of the front telescopic top column and the rear telescopic top column, a crushing groove in the middle is formed in the upper end of the top beam, a front top column sleeve ring and a rear top column moving groove are formed in the crushing groove, the bottom end of the front telescopic top column is fixed on the base, a telescopic end of the upper end of the front telescopic top column is installed on the top column sleeve ring, the bottom end of the rear telescopic top column is fixed on the sliding frame, a telescopic end of the upper end of the rear telescopic top column is installed in the rear top column moving groove, a pulley is arranged at the lower end of the sliding frame, and the right end of the sliding frame is connected with a telescopic end of a movable hydraulic rod fixed on the base; the hydraulic support crushing device is convenient to crush hard coal seams, and can be used for pushing the coal seams in the moving process of the hydraulic support crushing device for caving coal, so that a top beam is prevented from being broken by large hard coal blocks.
Description
Technical Field
The invention relates to the technical field of coal mine mechanical equipment, in particular to a crushing device for a hydraulic support for caving coal.
Background
In the coal mining machinery, the hydraulic support for top coal caving supports stably, the coal caving port is continuous, ridge loss is less, the coal caving effect is good, the equipment investment is small, the cost performance is high, the hydraulic support is applicable to thick coal beds with medium hardness or below, the joint and crack growth is obvious or good, however, in the coal mining process, a high coal bed with high hardness cannot be met inevitably, top coal can only be completely changed into loose and broken coal blocks on the upper portion, the middle portion or the tail portion of a support top beam and can only be discharged from the coal caving port, for the coal beds with high hardness, the pressure given by the traditional hydraulic support crushing device for top coal caving is small, the top coal cannot be actively and effectively crushed, the top coal caving rate can be increased, and the top beam is easy to crush for large hard coal blocks falling from a whole block, so that the coal mining efficiency is influenced.
Disclosure of Invention
Based on at least one of the technical problems, the invention provides a novel caving coal hydraulic support crushing device which is convenient for crushing hard coal beds.
In view of the above, the invention provides a caving coal hydraulic support crushing device, which comprises a base, a top beam, a front telescopic upright post, a rear telescopic upright post and a top block device, wherein the top block device comprises a support frame; the kicking block device includes the crushing board of preceding flexible fore-set, the flexible fore-set of back, preceding flexible fore-set and the flexible fore-set upper end of back, the back timber upper end is equipped with the broken groove that is located the middle part, be equipped with preceding fore-set lantern ring, back fore-set shifting chute in the broken groove, preceding flexible fore-set bottom mounting is in on the base, the flexible end of its upper end is installed the fore-set lantern ring, the flexible fore-set bottom mounting of back is on the carriage, and the flexible end of its upper end is installed at the fore-set shifting chute, the carriage lower extreme is equipped with the pulley, the carriage right-hand member with fix the flexible end connection of the removal hydraulic stem on the base.
Preferably, the crushing plate comprises a fixed plate at the lower end and a top plate hinged with the fixed plate, and a spring connected with the lower end of the rear side of the top plate is arranged at the rear end of the fixed plate.
Preferably, the top plate is provided with triangular crushing strips.
Preferably, the top beam is provided with top blocks positioned at two ends of the crushing groove.
Preferably, the crushing groove is a four-sided groove with an opening at the rear end.
The invention has the beneficial effects that: through above technical scheme, make things convenient for broken stereoplasm coal seam, also push against the coal seam at the hydraulic support breaker of caving coal removal in-process, prevent that bold stereoplasm coal piece from pounding the back timber.
Drawings
FIG. 1 shows a schematic structural diagram of a hydraulic support breaker for caving coal according to an embodiment of the invention;
FIG. 2 illustrates a schematic structural view of a rear telescoping jack post according to an embodiment of the present invention;
FIG. 3 illustrates a schematic structural diagram of a top view of a top beam according to an embodiment of the present invention;
fig. 4 shows a schematic structural view of a fixing plate according to an embodiment of the present invention;
in the figure: 1 is the base, 2 is the back timber, 3 is preceding flexible stand, 4 is the flexible stand of back, 5 is preceding flexible fore-set, 6 is the flexible fore-set of back, 7 is broken groove, 8 is preceding fore-set lantern ring, 9 is the back fore-set shifting chute, 10 is the carriage, 11 is the pulley, 12 is the removal hydraulic stem, 13 is the fixed plate, 14 is the roof, 15 is the spring, 16 is broken strip, 17 is the kicking block.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The technical solution of the present invention is further explained with reference to fig. 1 to 4.
As shown in the figure, the invention provides a caving coal hydraulic support crushing device, which comprises a base 1, a top beam 2, a front telescopic upright post 3, a rear telescopic upright post 4 and a top block device, wherein the top block device comprises a support frame; the kicking block device includes preceding flexible fore-set 5, flexible fore-set 6 after, preceding flexible fore-set 5 and the crushing board of the flexible fore-set 6 upper end after, 2 upper ends of back timber are equipped with the broken groove 7 that is located the middle part, be equipped with preceding fore-set lantern ring 8 in the broken groove 7, back fore-set shifting chute 9, preceding flexible fore-set 5 bottom mounting is on base 1, the flexible end of its upper end is installed at the fore-set lantern ring 8, 6 bottom mounting of flexible fore-set is on carriage 10 after, the flexible end of its upper end is installed at back fore-set shifting chute 9, carriage 10 lower extreme is equipped with pulley 11, carriage 10 right-hand member is connected with the flexible end of fixing the removal hydraulic stem 12 on base 1.
The crushing plate comprises a fixed plate 13 at the lower end and a top plate 14 hinged with the fixed plate 13, and a spring 15 connected with the lower end of the rear side of the top plate 14 is arranged at the rear end of the fixed plate 13 and is adapted to the coal layer surface.
The top plate 14 is provided with triangular crushing strips 16, which are convenient for crushing the coal seam.
The top beam 2 is provided with top blocks 17 positioned at two ends of the crushing groove 7, so that the top beam 2 is protected conveniently.
The crushing tank 7 is a four-side tank with an opening at the rear end, so that the material can be discharged more easily.
When the coal mining machine works, the upper ends of the front telescopic top pillar 5 and the rear telescopic top pillar 6 are propped against a coal bed, and the crushing strips 16 at the upper ends facilitate crushing of the coal bed; after the top beam 2 falls, the front telescopic top column 5 falls, the caving coal hydraulic support crushing device moves forward, the rear telescopic top column 6 retreats under the action of the movable hydraulic rod 12, the upper end of the rear telescopic top column 6 is always jacked on a coal bed, when the caving coal hydraulic support crushing device stops moving forward, the top beam 2 jacks up, the front telescopic top column 5 jacks up, the rear telescopic top column 6 falls and moves forward, and finally, the top column jacks up to discharge materials.
The technical scheme of the invention is described in detail in the above with reference to the attached drawings, and the technical scheme of the invention provides a novel top coal hydraulic support crushing device which is convenient for crushing hard coal beds, and can also be used for pushing against the coal beds in the moving process of the top coal hydraulic support crushing device so as to prevent the top beams from being broken by large hard coal blocks.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a caving coal hydraulic support breaker, includes base, back timber, preceding flexible stand, the flexible stand of back, its characterized in that: the device also comprises a top block device; the kicking block device includes preceding flexible fore-set, the flexible fore-set in back, preceding flexible fore-set and the crushing board of the flexible fore-set upper end in back, the back timber upper end is equipped with the broken groove that is located the middle part, be equipped with preceding fore-set lantern ring, back fore-set shifting chute in the broken groove, preceding flexible fore-set bottom mounting is in on the base, and the flexible end of its upper end is installed preceding fore-set lantern ring, back flexible fore-set bottom mounting is on the carriage, and the flexible end of its upper end is installed at the fore-set shifting chute, the carriage lower extreme is equipped with the pulley, the carriage right-hand member with fix the flexible end of the removal hydraulic stem on the base is connected, the crushing board includes the fixed plate of lower extreme, with fixed plate articulated roof, the fixed plate rear end be equipped with the spring that roof rear side lower extreme is connected.
2. The caving coal hydraulic support crushing device of claim 1, wherein: the top plate is provided with triangular crushing strips.
3. The caving coal hydraulic support crushing device of claim 1, wherein: the top beam is provided with top blocks positioned at two ends of the crushing groove.
4. The caving coal hydraulic support crushing device of claim 1, wherein: the crushing groove is a four-side groove with an opening at the rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910980692.3A CN110748364B (en) | 2019-10-16 | 2019-10-16 | Caving coal hydraulic support breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910980692.3A CN110748364B (en) | 2019-10-16 | 2019-10-16 | Caving coal hydraulic support breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110748364A CN110748364A (en) | 2020-02-04 |
| CN110748364B true CN110748364B (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910980692.3A Active CN110748364B (en) | 2019-10-16 | 2019-10-16 | Caving coal hydraulic support breaker |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228135A (en) * | 2020-10-30 | 2021-01-15 | 四川华蓥山广能集团嘉华机械有限责任公司 | Structure of top wiping movable support |
| CN112502761B (en) * | 2020-12-21 | 2022-09-27 | 天地科技股份有限公司 | Two-column shield type hydraulic support for caving coal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888712A (en) * | 2016-04-16 | 2016-08-24 | 太原理工大学 | Initiative top coal caving crushing hydraulic support |
| CN108005700A (en) * | 2017-12-01 | 2018-05-08 | 中国矿业大学 | A kind of ultrasonic exciting caving device for coal being used cooperatively with hydraulic support and its application method |
| CN109026109A (en) * | 2018-10-09 | 2018-12-18 | 中国矿业大学(北京) | Longwall top coal caving intelligence Fang Mei mechanism |
| CN109540558A (en) * | 2018-10-25 | 2019-03-29 | 四川大学 | A kind of top coals' recovery ratio and mine pressure show relationship experiments device |
| CN208982085U (en) * | 2018-10-09 | 2019-06-14 | 中国矿业大学(北京) | Longwall top coal caving intelligence Fang Mei mechanism |
-
2019
- 2019-10-16 CN CN201910980692.3A patent/CN110748364B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888712A (en) * | 2016-04-16 | 2016-08-24 | 太原理工大学 | Initiative top coal caving crushing hydraulic support |
| CN108005700A (en) * | 2017-12-01 | 2018-05-08 | 中国矿业大学 | A kind of ultrasonic exciting caving device for coal being used cooperatively with hydraulic support and its application method |
| CN109026109A (en) * | 2018-10-09 | 2018-12-18 | 中国矿业大学(北京) | Longwall top coal caving intelligence Fang Mei mechanism |
| CN208982085U (en) * | 2018-10-09 | 2019-06-14 | 中国矿业大学(北京) | Longwall top coal caving intelligence Fang Mei mechanism |
| CN109540558A (en) * | 2018-10-25 | 2019-03-29 | 四川大学 | A kind of top coals' recovery ratio and mine pressure show relationship experiments device |
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| Publication number | Publication date |
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| CN110748364A (en) | 2020-02-04 |
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