CN210599053U - Two-frame one-set middle-placed type caving coal end support - Google Patents
Two-frame one-set middle-placed type caving coal end support Download PDFInfo
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- CN210599053U CN210599053U CN201921174828.3U CN201921174828U CN210599053U CN 210599053 U CN210599053 U CN 210599053U CN 201921174828 U CN201921174828 U CN 201921174828U CN 210599053 U CN210599053 U CN 210599053U
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Abstract
The utility model relates to a two-in-one set middle-positioned top coal caving end bracket, which comprises a top beam component, a base component, a guide frame, a cable hanging frame and a side cantilever beam, wherein the top beam component is connected with the base component through a stand column, the cable hanging frame is connected with the top beam component, and the guide frame and the side cantilever beam are respectively arranged at two sides of the top beam component; the top beam assembly is formed by combining a front beam, a front top beam, a middle top beam and a rear top beam which are of left and right frame structures, and the base assembly is formed by combining a front support seat, a front base, a middle base and a rear base which are matched with the left and right frame structures of the top beam assembly. The utility model provides a caving coal end support has solved the tunnel support efficiency and the supporting problem that old mine upgrading was reformed transform, and support strong adaptability can use with equipment such as the old basic support of ore side, transition support, scraper conveyor are supporting, makes coal mining operation ability safety, efficient implement.
Description
Technical Field
The utility model belongs to the technical field of the equipment is strutted in the coal mining, concretely relates to two a set of put formula caving coal end supports in.
Background
China has abundant coal resources, mature fully mechanized mining equipment and increasingly perfect coal mining process, and along with the shortage of energy, the coal mining pace is increasingly accelerated, so higher requirements are also put forward on the movement of the support of the roadway, for example, the support can be required to be automatically moved to accelerate the frame moving speed and effectively support the roadway, the traditional support measures cannot adapt to the existing mining speed, and the safety performance is unstable. In order to reduce the cost, only the equipment for supporting the roadway is upgraded, so that the equipment can be matched with the original equipment for use, and can be suitable for the wider roadway of the old mine.
With the development of coal mining technology, the types and the number of cables in a working face are more and more, the advancing of the coal mining working face enables the working face crossheading cables to be redundant, how to safely dispose the excessive cables becomes a problem affecting the coal mining efficiency, most domestic mines are provided with monorail cranes in the transportation crossheading to reserve the cables, but the cost is high, and the requirement on geological conditions is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that proposes among the background art, and provide a two set of put formula caving coal end supports in, solve the tunnel support efficiency and the supporting problem that old mine upgrading was reformed transform, support strong adaptability can use with equipment such as the old basic support of mine side, transition support, scraper conveyor are supporting, make coal mining operation can safe, the efficient implements.
The purpose of the utility model is realized like this:
the utility model provides a two put formula caving coal end supports in a set of, includes back timber subassembly, base subassembly, leading truck, cable stores pylon and side outrigger, the back timber subassembly passes through stand connection base subassembly, the back timber subassembly is connected to the cable stores pylon, the both sides of back timber subassembly are located respectively to leading truck and side outrigger.
Further, the back timber subassembly is formed by front beam, preceding back timber, well back timber and the back timber combination that is left and right frame structure, the front beam passes through the front beam jack and connects the front beam, the cable stores pylon is located between the left and right frame structure between front beam and well back timber.
Further, the base subassembly is formed by the preceding support seat, preceding base, well base and the back base combination with the left and right frame structure looks adaptation of back timber subassembly, preceding support seat is through advancing the jack and connecting preceding base, the left and right frame structure of base subassembly is through linking a jack down and connecting.
Furthermore, the left and right frames of the top beam assembly are connected through an upper connecting frame jack, the tail end of the rear top beam is connected with a rear waste rock blocking plate through a shield beam, and the shield beam is connected with the rear waste rock blocking plate through a rear waste rock blocking jack.
Furthermore, preceding bracket passes through the pusher jack and connects preceding base, preceding base passes through preceding articulated bottom plate and connects well base, well base passes through back articulated bottom plate and connects the back base.
Furthermore, the lower end of the front beam is connected with the front base through an upper connecting rod and a lower connecting rod, and the upper connecting rod is hinged with the lower connecting rod.
Furthermore, two shield beams and two rear waste rock blocking plates are arranged, and the two shield beams are respectively arranged on the rear base connected with the rear base through the front connecting rod and the rear connecting rod.
Furthermore, one side that the back timber subassembly is close to the front beam is located to leading truck and side outrigger, the direction erects threely, front portion, middle part and the rear portion of one side support body of back timber subassembly are located respectively to three leading truck, three leading truck hinge connects the back timber subassembly.
Furthermore, the side outriggers are three, the three side outriggers are respectively arranged at the front part, the middle part and the rear part of the other side frame body of the top beam assembly, and the three side outriggers are connected with the top beam assembly through side protection jacks.
Further, the gap between the two shield beams is 50-100 mm.
Furthermore, eight stand columns are arranged, and the stand columns adopt telescopic structures.
Furthermore, the cable stores pylon establishes two sets ofly, a set of cable stores pylon locate the one side that is close to preceding back timber, another group cable stores pylon locate the one side that is close to well back timber.
Further, the width of the base support is 1.1-2.5 m.
Further, the height of the upright post is 1-4 m.
Further, the maximum coal caving height of the bracket meets the following requirements:
L＝(x+2Mcosα)sinα
wherein L is the maximum coal caving height (M), M is the average thickness (M) of the coal seam, α is the inclination angle (DEG) of the coal seam, x is the stress limit height of the roadway support, and gamma is the average density (kg/M) of the coal seam3) H is a stentThe height (m) of the support structure,
the internal friction angle (DEG) of the interface of the coal bed and the top beam plate is shown, P is the support resistance (N) of the support, K is the pressure measurement coefficient, and K is the stress concentration coefficient.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model provides a two-frame set middle-positioned caving coal end support, when the coal cutter cuts coal for one time, the support pushing jack stretches out a step distance, the front support drives the reversed loader to advance by a step distance, then the right frame close to the coal wall is slightly lowered by a certain height, then the right frame is retracted by the pushing jack, and the right frame is also advanced by a step distance; and lifting the upright post of the right frame to initially support the right frame, completing the frame moving operation of the right frame, then slightly lowering the left frame by a certain height, then retracting the pushing jack of the left frame to advance the left frame by one step pitch, lifting the upright post of the left frame to initially support the left frame, completing the frame moving operation of the left frame, and completing the single work cycle.
2. The utility model provides a two put formula caving coal end supports in a set, left and right sides frame structural symmetry, through changing the mounted position of leading truck and side outrigger, can satisfy the requirement of left working face and right working face to the tunnel support, can be applied to the broken, wider tunnel of roof, its side outrigger can improve the security to the roof support; the guide frame can make the end support perfectly match with the old transition frame, and the adaptability of the end support is improved.
3. The utility model provides a pair of two put formula caving coal end supports in a set of has increased the cable stores pylon for place for the crossheading cable along with the propulsion of working face and the play of excess, provide better protection to the cable, other hoses also can be placed to the cable stores pylon.
4. The utility model provides a pair of two put formula caving coal end supports in a set of, the base subassembly is formed by five parts of preceding base, preceding articulated bottom plate, well base, back articulated bottom plate, back base are articulated, has improved the bending resistance of base, and the change of adaptable bottom plate undulation is uneven, and the design is widened in the base adoption simultaneously, has reduced the bottom plate and has pressed.
5. The utility model provides a pair of two put formula caving coal end supports in a set of, the clearance between the left and right frame shield beam is little, makes the waste rock ability of keeping off improve greatly, for equipment provides the safe operation space, adopts two flexible stands, and the concertina ratio is big, and the high scope in applicable tunnel is big.
6. The utility model provides a pair of two put formula caving coal end supports in a set of, inside and outside outrigger structure is the same, and is interchangeable, has reduced the maintenance cost, has reduced workman's intensity of labour.
Drawings
Fig. 1 is a schematic view of a set of two middle-positioned caving coal end supports of the present invention.
Fig. 2 is a schematic view of a set of two middle-positioned caving coal end supports of the present invention.
Fig. 3 is a top view of a set of two middle-positioned caving coal end supports of the utility model.
In the figure: 1. a front beam; 2. a front beam jack; 3. a column; 4. a front header; 5. a cable hanger; 6. a middle top beam; 7. a rear top beam; 8. covering the beam; 9. a rear waste rock blocking plate; 10. a rear gangue blocking jack; 11. a front link; 12. an upper connecting rod; 13. a lower connecting rod; 14. a front bracket; 15. pushing a jack; 16. a front base; 17. a front hinged bottom plate; 18. a middle base; 19. the rear is hinged with the bottom plate; 20. a rear base; 21. a lower frame-connected jack; 22. a guide frame; 23. an upper connecting frame jack; 24. a side protection jack; 25. a side cantilever beam; 26. a rear link.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.
Example 1
Combine fig. 1, fig. 3, a set of put formula caving coal end support in two, including back timber subassembly, base subassembly, leading truck 22, cable stores pylon 5 and side outrigger 25, the back timber subassembly passes through stand 3 and connects the base subassembly, the back timber subassembly is connected to cable stores pylon 5, the both sides of back timber subassembly are located respectively to leading truck 22 and side outrigger 25. The cable hanging rack 5 is used for placing the extra crossheading cable along with the advancing of the working face, so that the cable is better protected, and other hoses can be placed on the cable hanging rack.
The back timber subassembly is formed by the combination of front beam 1, front header 4, well back timber 6 and back timber 7 that are left and right frame structure, front beam 1 connects front header 4 through front beam jack 2, cable hanger 5 locates in the middle of the left and right frame structure between front header 4 and well back timber 6. The left and right frames of the top beam assembly are connected through an upper connecting frame jack 23, the tail end of the rear top beam 7 is connected with a rear waste rock blocking plate 9 through a shield beam 8, and the shield beam 8 is connected with the rear waste rock blocking plate 9 through a rear waste rock blocking jack 10.
The shield beam 8 and the rear waste rock blocking plate 9 are both provided with two shield beams 8, the two shield beams 8 are respectively arranged on the rear base 20 connected with the front connecting rod 11 and the rear connecting rod 26, the gap between the left and right shield beams 8 is small, the waste rock blocking capacity is greatly improved, a safe operation space is provided for equipment, the double telescopic columns 3 are adopted, the telescopic ratio is large, and the height range of the applicable roadway is large.
The guide frame 22 and the side outriggers 25 are arranged on one side of the top beam assembly close to the front beam 1, the guide frame 22 is three, the three guide frames 22 are respectively arranged on the front part, the middle part and the rear part of the frame body on one side of the top beam assembly, and the three guide frames 22 are hinged with the top beam assembly. The side outriggers 25 are three, the three side outriggers 25 are respectively arranged at the front part, the middle part and the rear part of the other side frame body of the top beam assembly, and the three side outriggers 25 are all connected with the top beam assembly through side protection jacks 24. The left and right frames are symmetrical in structure, the requirements of a left working face and a right working face on roadway support can be met by changing the mounting positions of the guide frame 22 and the side cantilever beam 25, the left and right frame can be applied to a roadway with a broken top plate and a wide top plate, the side cantilever beam can improve the safety of the top plate support, the guide frame 22 can enable the end support to be perfectly matched with an old transition frame, and the adaptability of the end support is improved.
Example 2
With reference to fig. 1-2, a set of two put formula caving coal end supports in, includes back timber subassembly, base subassembly, leading truck 22, cable stores pylon 5 and side outrigger 25, the back timber subassembly passes through stand 3 and connects the base subassembly, cable stores pylon 5 connects the back timber subassembly, the both sides of back timber subassembly are located respectively to leading truck 22 and side outrigger 25.
The base component comprises a front support seat 14, a front base 16, a middle base 18 and a rear base 20 which are matched with the left and right frame structures of the top beam component, the front support seat 14 is connected with the front base 16 through a pushing jack 15, and the left and right frame structures of the base component are connected through a lower connecting frame jack 21; the front bracket 14 is connected with a front base 16 through a pushing jack 15, the front base 16 is connected with a middle base 18 through a front hinged bottom plate 17, and the middle base 18 is connected with a rear base 20 through a rear hinged bottom plate 19.
The lower end of the front beam 1 is connected with a front base 16 through an upper connecting rod 12 and a lower connecting rod 13, and the upper connecting rod 12 is hinged with the lower connecting rod 13. The shield beam 8 and the rear waste rock blocking plate 9 are both provided with two shield beams 8, and the two shield beams 8 are respectively arranged on the rear base 20 connected through the front connecting rod 11 and the rear connecting rod 26.
The base component is formed by hinging five parts, namely a front base 16, a front hinged bottom plate 17, a middle base 18, a rear hinged bottom plate 19 and a rear base 20, so that the bending resistance of the base is improved, the base can adapt to the uneven fluctuation of the bottom plate, and meanwhile, the base adopts a widening design, so that the specific pressure of the bottom plate is reduced.
Example 3
With reference to fig. 1-3, a two-frame-one-set top coal caving end bracket comprises a top beam assembly, a base assembly, a guide frame 22, a cable hanger 5 and a side cantilever beam 25, wherein the top beam assembly is connected with the base assembly through an upright post 3, the cable hanger 5 is connected with the top beam assembly, and the guide frame 22 and the side cantilever beam 25 are respectively arranged on two sides of the top beam assembly; the back timber subassembly is formed by the combination of front beam 1, front header 4, well back timber 6 and back timber 7 that are left and right frame structure, front beam 1 connects front header 4 through front beam jack 2, cable hanger 5 locates in the middle of the left and right frame structure between front header 4 and well back timber 6. The left frame and the right frame of the top beam assembly are connected through an upper connecting frame jack 23, the tail end of the rear top beam 7 is connected with a rear waste rock blocking plate 9 through a shield beam 8, and the shield beam 8 is connected with the rear waste rock blocking plate 9 through a rear waste rock blocking jack 10; the base component comprises a front support seat 14, a front base 16, a middle base 18 and a rear base 20 which are matched with the left and right frame structures of the top beam component, the front support seat 14 is connected with the front base 16 through a pushing jack 15, and the left and right frame structures of the base component are connected through a lower connecting frame jack 21; the front bracket 14 is connected with a front base 16 through a pushing jack 15, the front base 16 is connected with a middle base 18 through a front hinged bottom plate 17, and the middle base 18 is connected with a rear base 20 through a rear hinged bottom plate 19.
The front bracket 14 is connected with the transfer conveyor, when the coal mining machine cuts coal for one time, the pushing jack 15 of the bracket extends out a step pitch, the transfer conveyor is driven to advance by the front bracket 14 for one step pitch, then the right frame close to the coal wall slightly descends for a certain height, and then the pushing jack 15 is retracted by the right frame, so that the right frame also advances by one step pitch; and lifting the upright post 3 of the right frame to initially support the right frame to complete the frame moving operation of the right frame, then slightly lowering the left frame to a certain height, then retracting the pushing jack 15 of the left frame to advance the left frame by one step pitch, lifting the upright post 3 of the left frame to initially support the left frame to complete the frame moving operation of the left frame, and completing the single work cycle.
Example 4
The maximum coal caving height of the bracket meets the following requirements:
L＝(x+2Mcosα)sinα
wherein L is the maximum coal caving height (M), M is the average thickness (M) of the coal seam, α is the inclination angle (DEG) of the coal seam, x is the stress limit height of the roadway support, and gamma is the average density (kg/M) of the coal seam3) H is the height (m) of the bracket,
the internal friction angle (DEG) of the interface of the coal bed and the top beam plate is shown, P is the support resistance (N) of the support, K is the pressure measurement coefficient, and K is the stress concentration coefficient.
Taking the geology of a coal mine in Hunan province as an example, when L is 3.5-7.8 m, namely the horizontal height of a subsection of the coal mine is 3.5-7.8 m, the top coal at the whole height is unstable under the mine pressure and can be discharged to the maximum extent, in order to reduce the arrangement and carrying times of a working face and increase the yield, the crushing height of the top coal is increased by adopting methods such as presplitting blasting, forced coal discharging and the like, and the horizontal height of the subsection is 7.9-11.5 m.
Above only be the preferred embodiment of the present invention, not be used for limiting the utility model discloses, the all be in the utility model discloses an any modification of doing in the protection scope, equal replacement etc. all should be contained within the protection scope of the utility model.
Claims (7)
1. The utility model provides a put formula caving coal end support in two a set of which characterized in that: the cable hanging rack comprises a top beam assembly, a base assembly, a guide frame (22), a cable hanging rack (5) and side outriggers (25), wherein the top beam assembly is connected with the base assembly through an upright post (3), the cable hanging rack (5) is connected with the top beam assembly, and the guide frame (22) and the side outriggers (25) are respectively arranged on two sides of the top beam assembly;
the top beam assembly is formed by combining a front beam (1), a front top beam (4), a middle top beam (6) and a rear top beam (7) which are of left and right frame structures, the front beam (1) is connected with the front top beam (4) through a front beam jack (2), and the cable hanging frame (5) is arranged between the left and right frame structures between the front top beam (4) and the middle top beam (6);
the base subassembly is formed by preceding support seat (14), preceding base (16), well base (18) and the combination of back base (20) with the left and right sides frame structure looks adaptation of back timber subassembly, preceding base seat (14) are through advancing preceding base (16) of jack (15) connection, the frame structure is connected through linking frame jack (21) down about the base subassembly.
2. The two-unit mid-set caving coal head support of claim 1, wherein: the left and right frames of the top beam assembly are connected through an upper connecting frame jack (23), the tail end of the rear top beam (7) is connected with a rear waste rock blocking plate (9) through a shield beam (8), and the shield beam (8) is connected with the rear waste rock blocking plate (9) through a rear waste rock blocking jack (10).
3. The two-unit mid-set caving coal head support of claim 1, wherein: the front bracket (14) is connected with a front base (16) through a pushing jack (15), the front base (16) is connected with a middle base (18) through a front hinged bottom plate (17), and the middle base (18) is connected with a rear base (20) through a rear hinged bottom plate (19).
4. The two-unit mid-set caving coal head support as claimed in claim 1 or 2, wherein: the lower end of the front beam (1) is connected with a front base (16) through an upper connecting rod (12) and a lower connecting rod (13), and the upper connecting rod (12) is hinged with the lower connecting rod (13).
5. The two-unit mid-set caving coal head support of claim 2, wherein: the shield beam (8) and the rear waste rock blocking plate (9) are arranged in two numbers, and the two shield beams (8) are respectively arranged on a rear base (20) connected through a front connecting rod (11) and a rear connecting rod (26).
6. The two-unit mid-set caving coal head support of claim 1, wherein: one side that the back timber subassembly is close to front beam (1) is located in leading truck (22) and side outrigger (25), three is established in leading truck (22), anterior, middle part and the rear portion of one side support body of back timber subassembly are located respectively in three leading truck (22), three leading truck (22) hinge connects the back timber subassembly.
7. The two-unit mid-set caving coal head support as claimed in claim 1 or 6, wherein: the side outriggers (25) are arranged in three numbers, the three side outriggers (25) are respectively arranged at the front part, the middle part and the rear part of the other side frame body of the top beam assembly, and the three side outriggers (25) are connected with the top beam assembly through side protection jacks (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174828.3U CN210599053U (en) | 2019-07-24 | 2019-07-24 | Two-frame one-set middle-placed type caving coal end support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174828.3U CN210599053U (en) | 2019-07-24 | 2019-07-24 | Two-frame one-set middle-placed type caving coal end support |
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| CN210599053U true CN210599053U (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410125A (en) * | 2019-07-24 | 2019-11-05 | 郑州四维新材料技术研究院有限公司 | A kind of one group of middle Sub-Level Caving face end support of two frame |
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2019
- 2019-07-24 CN CN201921174828.3U patent/CN210599053U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410125A (en) * | 2019-07-24 | 2019-11-05 | 郑州四维新材料技术研究院有限公司 | A kind of one group of middle Sub-Level Caving face end support of two frame |
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