CN213540435U

CN213540435U - Three soft coal seams are support for stoping tunnel

Info

Publication number: CN213540435U
Application number: CN202022285808.2U
Authority: CN
Inventors: 张作
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-25
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a support for a three-soft coal seam stoping roadway in the field of support of the three-soft coal seam stoping roadway, which comprises a base, wherein the upper end of the base is rotatably connected with a threaded cylinder, a threaded column is in threaded connection with the threaded cylinder, the periphery of the threaded column is rotatably connected with a rotating disc, and the lower end of the rotating disc is fixedly connected with a conical fluted disc; screw thread post periphery fixedly connected with second mount, guide block and second connecting block, second mount internal rotation is connected with bevel gear, bevel gear front end fixedly connected with second handle, the spout has been seted up to the terminal surface before the guide block, sliding connection has the slider in the spout, slider internal thread connection has the lead screw, lead screw lower extreme fixedly connected with gear, the slider front end is rotated and is connected with the rocker, the rocker is kept away from the one end of slider and is rotated and be connected with first connecting block, first connecting block upper end fixedly connected with bracing piece, the bracing piece rear end is rotated with the second connecting block and is connected, the utility model discloses simple structure cost of manufacture is low, only needs simple operation just can reach portable increase supported area.

Description

Three soft coal seams are support for stoping tunnel

Technical Field

The utility model relates to a three soft coal seams stope tunnel supports the field, specifically is a support for three soft coal seams stope tunnel.

Background

The three-soft coal layer has soft rock stratum and complex structure, and the fracture development easily causes the potential safety hazard of a coal mine. Therefore, geological exploration on the three soft coal layers needs to be enhanced in the coal mining process, effective control is carried out, the safe production of the top plate and the safety of the floor are guaranteed, and collapse accidents in the mining process are prevented. The most effective mode is to carry out support technical innovation in a coal seam, and in a soft three-soft coal seam, the ground pressure is too large, so that the roadway maintenance is difficult to a certain degree.

The three-soft coal seam refers to a complex coal seam geological structure with a soft roof, a soft floor and a soft mining surface, has great difficulty in mining, and is a great challenge to mining technology. Particularly, roadway excavation and mining are carried out in a coal rock layer, so that the original force of surrounding rocks is damaged, the warp stress of rock bodies is threatened, and the phenomenon of rock fracture or collapse is easily caused. The stress experienced by a coal seam is primarily dependent on the strength of the rock and its elasto-plastic distribution. The strength of the three-soft coal seam is low, the structure of the original rock stratum is destroyed after excavation, secondary stress is threatened, and the rock mass enters plastic deformation, so that the supporting strength of the rock mass needs to be enhanced, the original rock stratum structure is guaranteed, the galloping coal seam can be well driven, and the mining process is completed. Otherwise, the original coal seam structure can be damaged after the roadway is excavated, the supporting force of the coal seam is insufficient, the stress is concentrated, and the rock beam supporting points on the two sides of the roadway are fractured. For relatively hard coal seams, the original bearing capacity of the relatively hard coal seams can be lost if payment for entering a plastic state is used, and after the roadway is excavated, the plastic property can be released in various forms. At this time, the coal seam is supported by adopting a supporting technology to replace the original bearing capacity, and although the resultant force of the movement towards the adjacent empty area caused by excavation is not only borne by the supporting capacity, the supporting capacity becomes very necessary due to the inevitable plastic state. Given that the enormous plastic properties of its rock formations are to be released in some way, there is necessarily sufficient deformation space and release space during soft coal seam set up payment. The excavation of the three-soft coal seam is easy, but certain difficulty exists for ensuring the safety and the stability of the three-soft coal seam, and particularly, the maintenance of the three-soft coal seam needs quite advanced support forms and support technologies as the guarantee. The previous three soft coal seams and rock layer structures with large differences of structures and properties lack a supporting method which can be universally adapted. For three-soft coal seams, however, proper selection and necessary surveying are necessary for effective support depending on the nature and characteristics of the earth pressure. After the structure and properties of its rock formations have been correctly surveyed, the corresponding roadway location and profile technique is selected to be in a stable state.

However, when the supporting surface of the existing three-soft coal seam supporting device is enlarged, a flat plate is placed at the upper end of the ejector rod, and the supporting area cannot be increased in a portable mode, so that time and labor are wasted, certain danger exists, and certain hidden danger is caused to the safety of constructors.

Therefore, the utility model provides a three soft coal seams are support for stoping tunnel to solve the problem that proposes in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three soft coal seams are support for stoping tunnel to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a support for a three-soft coal seam stoping roadway comprises a base, wherein the upper end of the base is rotatably connected with a threaded cylinder, a threaded column is connected with the threaded cylinder in a threaded manner, the circumferential surface of the threaded column is rotatably connected with a rotating disc, the lower end of the rotating disc is fixedly connected with a conical fluted disc, and annular teeth are fixedly connected in the rotating disc; the threaded column comprises a threaded column circumferential surface, and is characterized in that a second fixing frame, a guide block and a second connecting block are fixedly connected to the circumferential surface of the threaded column, a bevel gear is rotationally connected to the second fixing frame, a second handle is fixedly connected to the front end of the bevel gear, a sliding groove is formed in the front end surface of the guide block, a sliding block is slidably connected to the sliding groove, a lead screw is connected to the inner thread of the sliding block, a gear is fixedly connected to the lower end of the lead screw, a rocker is rotationally connected to the front end of the sliding block, one end, far away from the sliding block, of the rocker is rotationally connected to a first.

As a further aspect of the present invention: the utility model discloses a screw thread section of thick bamboo, including screw thread section of thick bamboo, screw thread section of thick bamboo periphery is connected with first mount, screw thread section of thick bamboo periphery fixedly connected with turbine, first mount internal rotation is connected with the worm, worm rear end fixedly connected with first handle, like this at the during operation, can make screw thread section of thick bamboo rotate through rotating first handle, and then drive threaded connection's screw thread post and remove, reach the purpose of rising.

As a further aspect of the present invention: the screw thread post is internally provided with a guide groove, the guide groove is internally and slidably connected with a guide rod, the upper end of the guide rod is fixedly connected with a check block, and the guide groove is in a step shape, so that when the screw thread post works, the screw thread post can be prevented from rotating when the screw thread barrel rotates, and the screw thread post can be conveniently and stably moved.

As a further aspect of the present invention: the thread shape of the screw rod is triangular, so that the purpose of self-locking can be achieved when the screw rod works, and the support rod is stably supported.

As a further aspect of the present invention: guide block, gear, lead screw, slider, rocker, first connecting block, second connecting block and bracing piece are provided with a plurality ofly, and evenly distributed is around the screw thread post, like this at the during operation, the support area increase that can make for the support that can be better is three soft coal seam stoping roadways.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

through at the second handle, bevel gear, under the cooperation of awl fluted disc and rolling disc, it rotates to rotate the second handle and is driving cyclic annular tooth, and then make the gear rotation of meshing with it, at this moment the lead screw is along with rotating, the rotation of lead screw is driving threaded connection's slider and is sliding in the spout, and then driving the rocker and removing, at this moment can make the bracing piece rotate round the second connecting block under the cooperation of first connecting block and slider, and then make the bracing piece support the tunnel surface, just so solved the bracing piece holding surface problem of being not convenient for increase, great reduction workman's intensity of labour, and the work efficiency is improved, and the danger coefficient has also been reduced simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the whole body of the utility model viewed from the middle and the right;

fig. 3 is an enlarged schematic structural view of a portion a in fig. 2 according to the present invention;

fig. 4 is a schematic structural diagram of a top view section of the present invention;

FIG. 5 is a schematic structural view of the middle front view partial section of the present invention;

fig. 6 is an enlarged schematic structural diagram of a portion B in fig. 5 according to the present invention.

In the figure: 1-a threaded cylinder, 2-a threaded column, 3-a first fixing frame, 4-a base, 5-a turbine, 6-a worm, 7-a first handle, 8-a conical fluted disc, 9-a rotating disc, 10-a second fixing frame, 11-a bevel gear, 12-a sliding block, 13-a first connecting block, 14-a supporting rod, 15-a second connecting block, 16-a ring-shaped tooth, 17-a sliding groove, 18-a gear, 19-a rocker, 20-a second handle, 21-a screw rod, 22-a guide groove, 23-a stop block, 24-a guide rod and 25-a guide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, in an embodiment of the present invention, a support for a three-soft coal seam mining roadway includes a base 4, a threaded cylinder 1 is rotatably connected to an upper end of the base 4, a threaded column 2 is rotatably connected to a circumference of the threaded cylinder 1, a rotating disc 9 is rotatably connected to a circumference of the threaded column 2, a conical fluted disc 8 is fixedly connected to a lower end of the rotating disc 9, and annular teeth 16 are fixedly connected to an inner portion of the rotating disc 9; 2 periphery fixedly connected with second mount 10 of screw thread post, guide block 25 and second connecting block 15, the internal rotation of second mount 10 is connected with bevel gear 11, bevel gear 11 front end fixedly connected with second handle 20, spout 17 has been seted up to guide block 25 front end face, sliding connection has slider 12 in

spout

17, 12 internal thread connection of slider has lead screw 21, lead screw 21 lower extreme fixedly connected with gear 18, slider 12 front end rotates and is connected with rocker 19, the one end that slider 12 was kept away from to rocker 19 rotates and is connected with first connecting block 13, first connecting block 13 upper end fixedly connected with bracing piece 14, bracing piece 14 rear end rotates with second connecting block 15 and is connected.

The periphery of the threaded cylinder 1 is rotatably connected with a first fixing frame 3, the periphery of the threaded cylinder is fixedly connected with a turbine 5, a worm 6 is rotatably connected in the first fixing frame 3, and the rear end of the worm 6 is fixedly connected with a first handle 7, so that when the screw-thread lifting device works, the threaded cylinder 1 can be rotated by rotating the first handle 7, and the threaded column 2 in threaded connection is driven to move, and the purpose of lifting is achieved; a guide groove 22 is formed in the threaded column 2, a guide rod 24 is connected in the guide groove 22 in a sliding mode, a stop block 23 is fixedly connected to the upper end of the guide rod 24, and the guide groove 22 is in a step shape, so that when the threaded cylinder 1 is rotated during working, the threaded column 2 can be prevented from rotating, and the threaded column 2 can move stably; the thread shape of the screw rod 21 is triangular, so that the self-locking purpose can be achieved when the screw rod works, and the support is stably supported; guide block 25, gear 18, lead screw 21, slider 12, rocker 19, first connecting block 13, second connecting block 15 and bracing piece 14 are provided with a plurality ofly, and evenly distributed is around screw thread post 2, like this at the during operation, the support area that can make increases for the support that can be better is three soft coal seam mining roadways.

The utility model discloses a theory of operation is:

use the utility model discloses the time, place required place with this device, rotate second handle 20, and then make bevel gear 1811 rotate, bevel gear 1811's rotation is driving the awl fluted disc 8 rotation of meshing with it, at this moment, driving rolling disc 9 and rotating, make cyclic annular tooth 16 rotate simultaneously, cyclic annular tooth 16 is driving the gear 18 rotation of meshing with it, at this moment, lead screw 21 is also along with rotating, the rotation of lead screw 21 is driving threaded connection's slider 12 and is removing in spout 17, and then driving 19 limit rotations limit movements of rocker, at this moment make bracing piece 14 rotate round second connecting block 15 under the effect of second connecting block 15, when bracing piece 14 is in the level, reached the support to the tunnel. When having adjusted the support area, at this moment rotate first handle 7, and then make worm 6 rotate, worm 6 is driving the turbine 5 rotation of meshing with it, and then makes a screw thread section of thick bamboo 1 rotate, at this moment under the effect of guide way 22 and guide bar 24, the rotation of a screw thread section of thick bamboo 1 is driving the stable removal of 2 of threaded connection's screw thread post with it, when bracing piece 14 contacts the tunnel surface, reaches the outrigger to the tunnel, the utility model discloses simple structure cost of manufacture is low, only needs simple operation just can reach portable increase support area, great reduction workman's intensity of labour, improved work efficiency, also reduced danger coefficient simultaneously.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a support for three soft coal seams extraction tunnel, includes base (4), its characterized in that: the upper end of the base (4) is rotatably connected with a threaded cylinder (1), a threaded column (2) is connected with the threaded cylinder (1) in an internal thread manner, a rotating disc (9) is rotatably connected to the circumferential surface of the threaded column (2), a conical fluted disc (8) is fixedly connected to the lower end of the rotating disc (9), and annular teeth (16) are fixedly connected in the rotating disc (9); the circumferential surface of the threaded column (2) is fixedly connected with a second fixing frame (10), a guide block (25) and a second connecting block (15), a bevel gear (11) is rotationally connected in the second fixing frame (10), a second handle (20) is fixedly connected at the front end of the bevel gear (11), a sliding groove (17) is arranged on the front end surface of the guide block (25), a sliding block (12) is connected in the sliding groove (17) in a sliding way, a screw rod (21) is connected with the inner thread of the slide block (12), a gear (18) is fixedly connected with the lower end of the screw rod (21), the front end of the sliding block (12) is rotatably connected with a rocker (19), one end of the rocker (19) far away from the sliding block (12) is rotatably connected with a first connecting block (13), the upper end of the first connecting block (13) is fixedly connected with a supporting rod (14), and the rear end of the supporting rod (14) is rotatably connected with the second connecting block (15).

2. The support for the three-soft coal seam mining roadway according to claim 1, is characterized in that: the novel worm gear is characterized in that a first fixing frame (3) is rotatably connected to the circumferential surface of the threaded cylinder (1), a turbine (5) is fixedly connected to the circumferential surface of the threaded cylinder (1), a worm (6) is rotatably connected to the first fixing frame (3), and a first handle (7) is fixedly connected to the rear end of the worm (6).

3. The support for the three-soft coal seam mining roadway according to claim 1, is characterized in that: a guide groove (22) is formed in the threaded column (2), a guide rod (24) is connected to the guide groove (22) in a sliding mode, a stop block (23) is fixedly connected to the upper end of the guide rod (24), and the guide groove (22) is in a step shape.

4. The support for the three-soft coal seam mining roadway according to claim 1, is characterized in that: the thread shape of the screw rod (21) is a triangular shape.

5. The support for the three-soft coal seam mining roadway according to claim 1, is characterized in that: the guide block (25), the gear (18), the screw rod (21), the sliding block (12), the rocker (19), the first connecting block (13), the second connecting block (15) and the supporting rod (14) are arranged in a plurality of numbers and are uniformly distributed around the threaded column (2).