CN211924203U

CN211924203U - Temporary support hydraulic support for coal mining and tunneling face

Info

Publication number: CN211924203U
Application number: CN202020551055.2U
Authority: CN
Inventors: 郝云龙; 彭强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-13
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a hydraulic support is strutted in coal mining tunnelling work face time in coal mine equipment field, including the lower backplate and the upper guard plate of hollow design, lower backplate inner chamber rotates and is provided with the pivot, lower backplate upper end slides and runs through and is provided with two sets of first sliders, upper guard plate lower extreme transversely is provided with the slide rail, and slide rail lower extreme sliding connection has the second slider, fixed mounting has the hydraulic stem between first slider and the second slider, the fixed cover in the hydraulic stem outside is equipped with the ring cover, and connects through strengthening mechanism between the ring cover in the adjacent hydraulic stem outside. The utility model discloses braced frame structural design based on the comparison file, upper and lower two sets of backplate cooperation reinforced structure increase support stability, and the two sets of hydraulic stems of pivot drive adopt simple adjustable structure to consolidate the hydraulic stem and connect according to the distance between the demand adjustment, and its overall structure sets up rationally, is worth current market and uses widely.

Description

Temporary support hydraulic support for coal mining and tunneling face

Technical Field

The utility model relates to a coal mine equipment field specifically is a hydraulic support is strutted when coal mining tunnelling work faces.

Background

China is a large resource country and is also the leading position in the world in the storage of coal mine resources. The coal mine industry and the petroleum industry are known to be important pillars for the national industrial construction development. In the energy structure of China, coal plays a particularly important role as basic energy and is an important guarantee for the sustainable development of the industry of China.

In the normal mining and tunneling process of a coal mine, a special supporting device is needed to support the inner wall of the coal mine. At present, chinese patent with application number CN201821851440.8 discloses a hydraulic support is strutted when coal mining excavation face, relates to coal mine excavation technical field, specifically is a hydraulic support is strutted when coal mining excavation face, including PMKD, the spout has been seted up at PMKD's top, the inside swing joint of spout has the slider, and the one end fixedly connected with hydraulic stem of spout is kept away from to the slider.

However, the existing coal mining tunneling hydraulic support device still has the following technical defects: when the existing support is supported integrally, the supporting stabilizing effect of the contact surfaces of the bottom and the top and a coal mine is poor, and a relatively stable supporting foundation cannot be maintained for the whole support; in addition, current comparison file connects several groups of hydraulic stems through the connecting rod and consolidates, but the distance between the hydraulic stem needs the adjustment, and the connecting rod just needs the change length that does not stop so, unusual inconvenient during the use. Based on this, the utility model designs a hydraulic support is strutted when coal mining tunnelling work faces to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hydraulic support is strutted when coal mining tunnelling work faces to the problem that the above-mentioned background of the most probable solution provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydraulic support is strutted when coal mining tunnelling working faces, includes hollow design's lower backplate and upper guard plate, the rotation of lower backplate inner chamber is provided with the pivot, lower backplate upper end slides and runs through and is provided with two sets of first sliders, upper guard plate lower extreme transversely is provided with the slide rail, and slide rail lower extreme sliding connection has the second slider, fixed mounting has the hydraulic stem between first slider and the second slider, the fixed cover in the hydraulic stem outside is equipped with the ring cover, and connects through strengthening mechanism between the ring cover in the adjacent hydraulic stem outside.

Preferably, sharp metal bulges are uniformly arranged at the bottom of the lower support plate, and a threaded pin penetrates through the bottom of the inner cavity of the lower support plate in a threaded insertion manner.

Preferably, the two sides of the upper supporting plate are longitudinally provided with pointed cones, the upper end of the upper supporting plate is provided with an opening, and the upper end of the opening is provided with a rubber friction pad.

Preferably, the two ends of the rotating shaft are rotatably connected with the inner cavity of the lower guard plate through bearings, one end of the rotating shaft movably penetrates through the rear fixed connection handle of the lower guard plate, and threads in opposite directions are symmetrically arranged on the rotating shaft and are respectively in threaded connection with the two groups of first sliding blocks.

Preferably, both sides of the slide rail are transversely provided with a sliding groove, the inner wall of the sliding contact surface of the second slide block and the slide rail is provided with a ball, and the ball is in rolling contact in the sliding groove.

Preferably, the reinforcing mechanism comprises a fixed frame, the fixed frame is transversely movably inserted with an adjusting screw rod fixedly connected with the ring sleeve, and the surface of the adjusting screw rod positioned on the inner side and the outer side of the fixed frame is sleeved with a locking nut in a threaded manner.

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

the utility model is based on the structural design of the supporting frame of the comparison file, and the upper and lower groups of supporting plates are matched with the reinforcing structure to be spliced with the inner wall of the coal mine to increase the relative stability of the whole supporting surface; the sliding block is matched with a ball rolling design between the sliding block and the sliding rail to reduce friction force during movement; additionally, compare in current mechanism to the reinforcement behind two sets of hydraulic stem adjustment distance, the utility model discloses a simple adjustable structure consolidates the connection, and practical operation is more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the three-dimensional viewing angle structure of the present invention;

fig. 2 is a schematic side view of the slide rail and the second slide block connecting structure shown in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic view of the reinforcing mechanism in fig. 1 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-lower supporting plate, 101-bulge, 102-threaded pin, 2-upper supporting plate, 201-pointed cone, 202-friction pad, 3-rotating shaft, 301-bearing seat, 302-handle, 4-first sliding block, 5-sliding rail, 501-sliding groove, 6-second sliding block, 601-rolling ball, 7-hydraulic rod, 8-ring sleeve, 9-reinforcing mechanism, 901-fixed frame, 902-adjusting screw rod and 903-locking nut.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a temporary support hydraulic support for coal mining and tunneling working face comprises a lower support plate 1 and an upper support plate 2 which are hollow, wherein a rotating shaft 3 is rotatably arranged in an inner cavity of the lower support plate 1, two groups of first sliding blocks 4 are slidably arranged at the upper end of the lower support plate 1 in a penetrating manner, a sliding rail 5 is transversely arranged at the lower end of the upper support plate 2, a second sliding block 6 is slidably connected to the lower end of the sliding rail 5, a hydraulic rod 7 is fixedly arranged between the first sliding blocks 4 and the second sliding block 6, a ring sleeve 8 is fixedly sleeved on the outer side of the hydraulic rod 7, and the ring sleeves 8 on the outer sides of the adjacent hydraulic.

Wherein, the bottom of the lower protection plate 1 is evenly provided with sharp metal bulges 101, and the inner cavity of the lower protection plate 1 is inserted and connected with a threaded pin 102 penetrating through the bottom by threads. The sharp projection 101 at the bottom of the lower guard plate 1 is inserted into the ground and then drilled into the ground with the threaded pin 102 for reinforcement.

Wherein, go up backplate 2 both sides and vertically be provided with sharp awl 201, go up backplate 2 upper end and be provided with the opening, and the opening upper end is provided with rubber friction pad 202. The pointed cones 201 on the two sides of the upper guard plate 2 are inserted into the tops of the inner walls, and meanwhile, the friction pads 202 at the upper end of the upper guard plate 2 are in contact with the inner walls of the frames, so that the supporting friction force between the whole bodies after supporting is increased.

Wherein, 3 both ends of pivot are rotated through bearing 301 and are connected 1 inner chamber of bottom suspension guard plate, and 3 one end activities of pivot run through bottom suspension guard plate 1 back fixed connection handle 302, and the symmetry is provided with opposite direction's screw thread respectively with 4 threaded connection of two sets of first sliders in the

pivot

3, and 3 outside opposite direction's screw thread drive first slider 4 of pivot drives two sets of hydraulic stem 7 and moves the adjustment distance in opposite directions or back on the back.

The two side walls of the slide rail 5 are both transversely provided with slide grooves 501, the inner wall of the sliding contact surface of the second slide block 6 and the slide rail 5 is provided with a ball 601, and the ball 601 is in rolling contact with the slide grooves 501. The ball 601 on the inner wall of the second sliding block 6 is matched with the sliding groove 501 on the outer side of the sliding rail 5 in a rolling way, so that the sliding friction force can be greatly reduced.

The reinforcing mechanism 9 comprises a fixed frame 901, an adjusting screw 902 fixedly connected with the ring sleeve 8 is transversely movably inserted into the fixed frame 901, and a locking nut 903 is sleeved on the surface of the adjusting screw 902 positioned on the inner side and the outer side of the fixed frame 901 in a threaded manner. The adjusting screw 902 is fixed by the threaded rotation of a lock nut 903 of the adjusting screw 902 located on the inner and outer sides of the fixing frame 901.

One specific application of this embodiment is: the utility model discloses when using, through lower backplate 1 contact mine ground to under the sharp-pointed protrusion 101 grafting ground of lower backplate 1 bottom, utilized threaded pin 102 to creep into ground afterwards and consolidate. Rotate the handle 302 in the 3 outsides of pivot according to the support demand, the 3 other ends of pivot rotate through bearing

frame

301, and 3 outside opposite direction's in pivot first slider 4 of screw drive drives two sets of hydraulic stem 7 and moves the adjustment distance in opposite directions or back to back, and meanwhile, second slider 6 of hydraulic stem 7 upper end slides along the slide rail 5 of going up backplate 2 lower extreme, and the ball 601 of second slider 6 inner wall and the spout 501 roll cooperation in the slide rail 5 outside, but the gliding frictional force of greatly reduced. In addition, when the distance between the two sets of hydraulic rods 7 is adjusted, the adjusting screw 902 of the reinforcing mechanism 9 is also adjusted in a telescopic manner in the fixed frame 901, and then the adjusting screw 902 is fixed by the threaded rotation of the lock nut 903 of the adjusting screw 902 located on the inner side and the outer side of the fixed frame 901. The upper guard plate 2 is lifted and abutted to the upper end of the inner wall of the mine through the adjustment of the telescopic height of the hydraulic rod 7, the pointed cones 201 on two sides of the upper guard plate 2 are inserted into the tops of the inner walls, meanwhile, the friction pad 202 on the upper end of the upper guard plate 2 is in contact with the inner wall of the frame, the supporting friction force between the whole supporting bodies is increased, and the stability of the supporting friction force is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a coal mining tunnelling working face temporary support hydraulic support, includes hollow design lower backplate (1) and upper support backplate (2), its characterized in that: lower backplate (1) inner chamber rotates and is provided with pivot (3), it runs through and is provided with two sets of first slider (4) to slide lower backplate (1) upper end, it transversely is provided with slide rail (5) to go up backplate (2) lower extreme, and slide rail (5) lower extreme sliding connection has second slider (6), fixed mounting has hydraulic stem (7) between first slider (4) and second slider (6), the fixed cover in hydraulic stem (7) outside is equipped with ring cover (8), and connects through reinforcement mechanism (9) between ring cover (8) in the adjacent hydraulic stem (7) outside.

2. A temporary support hydraulic support for a coal mining excavation working face according to claim 1, wherein: sharp-pointed metal protrusions (101) are uniformly arranged at the bottom of the lower protection plate (1), and a threaded pin (102) penetrates through the bottom of the inner cavity of the lower protection plate (1) in a threaded insertion mode.

3. A temporary support hydraulic support for a coal mining excavation working face according to claim 1, wherein: go up backplate (2) both sides vertically and be provided with pointed cone (201), go up backplate (2) upper end and be provided with the opening, and the opening upper end is provided with rubber friction pad (202).

4. A temporary support hydraulic support for a coal mining excavation working face according to claim 1, wherein: the two ends of the rotating shaft (3) are rotatably connected with the inner cavity of the lower guard plate (1) through bearings (301), one end of the rotating shaft (3) movably penetrates through the rear fixed connection handle (302) of the lower guard plate (1), and threads in opposite directions are symmetrically arranged on the rotating shaft (3) and are respectively in threaded connection with the two groups of first sliding blocks (4).

5. A temporary support hydraulic support for a coal mining excavation working face according to claim 1, wherein: both sides wall of slide rail (5) all transversely is provided with spout (501), the sliding contact surface inner wall of second slider (6) and slide rail (5) is provided with ball (601), and ball (601) rolling contact in spout (501).

6. A temporary support hydraulic support for a coal mining excavation working face according to claim 1, wherein: the reinforcing mechanism (9) comprises a fixed frame (901), an adjusting screw rod (902) fixedly connected with a ring sleeve (8) is transversely movably inserted into the fixed frame (901), and a locking nut (903) is sleeved on the surface of the adjusting screw rod (902) positioned on the inner side and the outer side of the fixed frame (901) in a threaded manner.