CN211692525U - Mechanical support for underground coal mine in thin coal seam - Google Patents

Abstract

The utility model discloses a mechanical support for thin seam colliery is pit relates to coal mining technical field. The utility model discloses be provided with the support post bearing between roof and the bearing bottom plate, the lower extreme and the bearing bottom plate sliding connection of support post, through slip subassembly interconnect between support post and the bearing bottom plate, the lower extreme that bears the roof is provided with two backplate side by side, the upper end of support post is connected with the spliced pole, the axis mutually perpendicular of spliced pole and support column, the spliced pole runs through and is provided with the pivot, the first spout of curved with the mutual adaptation of pivot is seted up to the inside wall of backplate, the both ends lateral wall of spliced pole still is provided with the locating pin, the inner wall of backplate still is equipped with the second spout, the locating hole has been seted up to the one end of second spout, the degree of depth of locating hole is greater than the degree of depth of second spout, the internal.

Description

Mechanical support for underground coal mine in thin coal seam

Technical Field

The utility model relates to a coal mining technical field, concretely relates to a mechanical support that is used for thin seam colliery in pit.

Background

The coal industry is an important basic industry in China. For a long time, coal accounts for over 2/3 in the production and consumption composition of disposable energy in China. China has abundant coal resources, the energy supply pattern mainly based on coal is not changed in a long period in the future, and the stable increase of national economy of China can be ensured only by keeping the continuous, stable and healthy development of the coal industry. The thin coal seam is a coal seam with the thickness of less than 1.3m when underground mining is carried out; and the thickness of the coal seam is less than 3.5m during surface mining.

The existing thin coal seam coal mine supporting device usually adopts a hydraulic support form and comprises a bearing top plate, a shielding plate, a connecting rod, a bearing bottom plate and a hydraulic upright post, wherein the gravity of the bearing top plate is completely realized by the hydraulic upright post, but when the hydraulic upright post loses the supporting force for the bearing top plate, potential safety hazards exist. Therefore, the mechanical support used for the underground coal mine of the thin coal seam is urgently needed, when the hydraulic upright column loses the supporting force, a certain auxiliary supporting effect is achieved through the mechanical support, and the potential safety hazard is reduced.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a mechanical support for thin coal seam colliery is in pit to play the effect of auxiliary stay to bearing the roof, still can play certain supporting role to bearing the roof when hydraulic column loses the holding power, reduce the potential safety hazard.

The utility model adopts the following technical proposal;

the utility model discloses a mechanical support for thin seam colliery in pit, including bearing the roof, covering the backplate, connecting rod, bearing bottom plate and hydraulic column, cover one end of backplate and be connected with bearing the roof, the connecting rod pin joint is between covering the other end of backplate and bearing bottom plate, hydraulic column supports between bearing the roof and bearing the bottom plate; bear and be provided with the support post between roof and the bearing bottom plate, the lower extreme and the bearing bottom plate sliding connection of support post, through sliding assembly interconnect between support post and the bearing bottom plate, the lower extreme of bearing the roof is provided with two fender boards side by side, the upper end of support post is connected with the spliced pole, the axis mutually perpendicular of spliced pole and support column, the spliced pole runs through and is provided with the pivot, the first spout of curved with the mutual adaptation of pivot is seted up to the inside wall of fender board, the both ends lateral wall of spliced pole still is provided with the locating pin, the inner wall of fender board still is equipped with the second spout unanimous with first spout route, the locating hole has been seted up to the one end of second spout, the degree of depth of locating hole is greater than the degree of depth of second.

The utility model discloses further preferably, the sliding component includes locating piece and locating shaft; locating piece and bearing bottom plate interconnect, logical groove has been seted up to the upper end of locating piece, and the lateral wall that leads to the groove runs through and has seted up waist-shaped groove, and waist-shaped groove is run through at the both ends of location axle, and the lower extreme and the location axle of support post have been connected each other, and the location axle is provided with locking Assembly.

The utility model discloses further preferably, locking Assembly includes first stopper, sleeve and second stopper; vertical spacing face has all been seted up to the one end lateral wall of first stopper and second stopper, and the holding surface of slope has all been seted up to the other end of first stopper and second stopper, and a plurality of first stoppers set up the diapire at logical groove side by side, and the cover barrel casing is established on the support post, and the second stopper is articulated with telescopic outer wall.

The utility model discloses further preferably, the elastic support subassembly includes compression spring, baffle, connecting rod and drive arrangement; the standing groove has been seted up to the lateral wall of spliced pole, and the baffle setting is in the standing groove, and compression spring is located between the inner wall of baffle and standing groove, back and baffle interconnect in the locating pin stretches into the standing groove, the one end and the interconnect of connecting rod, the other end of connecting rod run through behind the lateral wall of spliced pole with drive arrangement interconnect, the drive groove that the connecting rod of being convenient for removed is seted up to the lateral wall of spliced pole.

The utility model discloses further preferably, drive arrangement includes first pinion rack, second pinion rack, dead axle and action wheel; first pinion rack and second pinion rack respectively with the connecting rod interconnect of the spliced pole left and right sides, the dead axle rotates the outer wall that sets up at the connecting axle, the action wheel cover is established on the dead axle, first pinion rack and second pinion rack are located the both sides of action wheel respectively, the action wheel simultaneously with first pinion rack and second pinion rack each other.

The utility model discloses it is further preferred, the dead axle is connected with the rotation handle.

The beneficial effects of the utility model are embodied in:

1. the utility model discloses an add the support post, play the effect to bearing roof auxiliary stay, effectively avoid hydraulic column suddenly became invalid and bear the phenomenon that the roof collapsed, reduce the potential safety hazard. The lower extreme and the bearing bottom plate interconnect of support post, the upper end and the roof of supporting interconnected of support post have guaranteed support post and roof of supporting and bottom plate's an organic whole nature. The lower extreme and the supporting baseplate sliding connection of support post, the upper end of support post can be at two relative movement between the backplate, has guaranteed to support post from fold condition to the semi-automatization that expandes the support state, need not install additional after bearing the roof through the jacking of hydraulic column, and the time that the reduction personnel were under the construction of bearing the roof further reduces the potential safety hazard. After the upper end of the supporting upright post rotates to a certain degree, the positioning pin enters the positioning hole under the action of the elastic supporting unit, and the automatic positioning of the supporting upright post is realized.

2. The sliding assembly comprises a positioning block and a positioning shaft, the lower end of the supporting stand column is connected with the positioning shaft, the positioning shaft can move in the waist-shaped groove, the change of the relative position of the lower end of the supporting stand column is realized, and the supporting stand column can be ensured to be capable of meeting the position change of the supporting top plate at the supporting stand column in the jacking process. The locking assembly comprises a first limiting block and a second limiting block, the structures of the first limiting block and the second limiting block are generally consistent, a limiting space is formed by two adjacent first limiting blocks, and the second limiting block is located in the limiting space to fix the lower end position of the support stand column. The supporting surface of the second limiting block is in contact with the supporting surface of the first limiting block, a sharp-angled protrusion is formed between the supporting surface of the second limiting block and the limiting surface, the protrusion is tightly abutted to the limiting surface of the second limiting block, the limiting and fixing effects are achieved, and the lower end of the supporting stand column cannot slide randomly.

3. The locating pin is under elastic support component's effect, the trend of outside extrusion has all the time, the degree of depth of first spout keeps unanimous, the degree of depth of second spout keeps unanimous, tip intercommunication at the second spout is provided with the locating hole, the degree of depth of locating hole is greater than the degree of depth of second spout, the slip of pivot in first spout, the effect of direction is played, the removal of locating pin in the second spout, guarantee that the locating pin can enter into in the locating hole, play the fixed effect in location to the spliced pole, realize the automatic positioning of spliced pole, do not need the manual work to additionally fix a position, the positioning accuracy has been guaranteed, reduce artifical intensity of labour simultaneously.

4. Realize the unblock to the spliced pole through drive arrangement, first pinion rack and second pinion rack set up respectively in the both sides of action wheel, and when the action wheel rotated, first pinion rack and second pinion rack moved in opposite directions or moved dorsad simultaneously. When the spliced pole needs to be unlocked, at first need make the locating pin remove from the locating hole, rotate the action wheel this moment, first pinion rack and second pinion rack drive the connecting rod respectively and remove to the direction of keeping away from the locating hole, and compression spring further compresses, and the locating pin removes from the locating hole and accomplishes the unblock. It should be noted that, the outer wall of the connecting column is provided with a driving groove which moves with the connecting rod for hundreds of years.

5. The rotating handle is arranged on the fixed shaft, so that manual force application is facilitated, an additional power tool is not needed, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a mechanical support according to an embodiment of the present invention;

FIG. 2 is a schematic view of the slide assembly of the apparatus of FIG. 1;

FIG. 3 is a schematic top view of the connecting column;

FIG. 4 is a schematic front view of the structure of FIG. 3;

FIG. 5 is a schematic structural view of the first chute and the second chute;

FIG. 6 is a schematic folding view of FIG. 1;

in the drawing, 110-a top bearing plate, 120-a shield plate, 130-a connecting rod, 140-a hydraulic column, 150-a bottom bearing plate, 2-a supporting column, 3-a sliding component, 310-a positioning block, 320-a positioning shaft, 330-a through groove, 331-a waist-shaped groove, 4-a locking component, 410-a first limiting block, 420-a second limiting block, 430-a sleeve, 5-a shield plate, 6-a connecting column, 7-a rotating shaft, 710-a first sliding groove, 8-a positioning pin, 810-a second sliding groove, 820-a positioning hole, 9-an elastic supporting component, 910-a baffle plate, 920-a connecting rod, 930-a compression spring, 940-a driving device, 941-a first toothed plate, 942-a second toothed plate and 943-a fixed shaft, 944-driving wheel, 10-placing groove and 11-rotating handle.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

The utility model discloses a mechanical support for thin coal seam colliery is pit, bear roof 110, shield plate 120, connecting rod 130, bearing bottom plate 150 and hydraulic column 140, and one end of shield plate 120 is connected with bearing roof 110, and connecting rod 130 pin joint is between the other end of shield plate 120 and bearing bottom plate 150, and hydraulic column 140 supports between bearing roof 110 and bearing bottom plate 150; the bearing top plate 110 and the bearing bottom plate 150 are provided with a supporting upright post 2, the lower end of the supporting upright post 2 is in sliding connection with the bearing bottom plate 150, the supporting upright post 2 is connected with the bearing bottom plate 150 through a sliding assembly 3, the lower end of the bearing top plate 110 is provided with two supporting plates 5 side by side, the upper end of the supporting upright post 2 is connected with a connecting post 6, the connecting post 6 is perpendicular to the axis of the supporting post, the connecting post 6 is provided with a rotating shaft 7 in a penetrating mode, the inner side wall of the supporting plate 5 is provided with an arc-shaped first sliding groove 710 matched with the rotating shaft 7, the side walls at two ends of the connecting post 6 are also provided with positioning pins 8, the inner wall of the supporting plate 5 is further provided with a second sliding groove 810 consistent with the path of the first sliding groove 710, one end of the second sliding groove 810 is provided with a positioning hole 820, the depth.

After the technical scheme is adopted: the utility model discloses an add support post 2, play the effect to bearing roof 110 auxiliary stay, effectively avoid hydraulic column 140 to lose efficacy suddenly and bear the phenomenon that roof 110 collapses, reduce the potential safety hazard. The lower extreme and the load-bearing bottom plate 150 interconnect of support column 2, the upper end and the roof interconnect of support column 2 have guaranteed support column 2 and roof and floor's an organic whole nature. Support column 2's lower extreme and supporting baseplate sliding connection, support column 2's upper end can be at two relative movement between backplate 5, has guaranteed to support column 2 from fold condition to the semi-automatization that expandes the support state, need not install additional after bearing roof 110 through hydraulic column 140 jacking, reduces the time that personnel were under the construction bearing roof 110, further reduces the potential safety hazard. After the upper end of the support column 2 rotates to a certain degree, the positioning pin 8 enters the positioning hole 820 under the action of the elastic support unit, and automatic positioning of the support column 2 is achieved.

Example 2

The present embodiment is further optimized on the basis of embodiment 1 as follows: the sliding assembly 3 comprises a positioning block 310 and a positioning shaft 320; the positioning block 310 is connected with the bearing bottom plate 150, the upper end of the positioning block 310 is provided with a through groove 330, the side wall of the through groove 330 is provided with a waist-shaped groove 331 in a penetrating manner, the two ends of the positioning shaft 320 are provided with the waist-shaped groove 331 in a penetrating manner, the lower end of the support upright 2 is connected with the positioning shaft 320, and the positioning shaft 320 is provided with a locking component 4. The locking assembly 4 comprises a first stopper 410, a sleeve 430 and a second stopper 420; vertical spacing face has all been seted up to the one end lateral wall of first stopper 410 and second stopper 420, and the holding surface of slope has all been seted up to the other end of first stopper 410 and second stopper 420, and a plurality of first stoppers 410 set up the diapire at logical groove 330 side by side, and sleeve 430 cover is established on support post 2, and second stopper 420 is articulated with sleeve 430's outer wall.

After the technical scheme is adopted: the sliding assembly 3 comprises a positioning block 310 and a positioning shaft 320, the lower end of the supporting upright post 2 is connected with the positioning shaft 320, and the positioning shaft 320 can move in the waist-shaped groove 331, so that the change of the relative position of the lower end of the supporting upright post 2 is realized, and the supporting upright post 2 can be ensured to meet the requirement of supporting the position change of the supporting upright post 2 in the jacking process of the supporting top plate. The locking assembly 4 comprises a first limiting block 410 and a second limiting block 420, the structures of the first limiting block 410 and the second limiting block 420 are substantially identical, a limiting space is formed between two adjacent first limiting blocks 410, and the second limiting block 420 is located in the limiting space to fix the lower end position of the support upright 2. The supporting surface of the second limiting block 420 is contacted with the supporting surface of the first limiting block 410, a sharp-angled protrusion is formed between the supporting surface of the second limiting block 420 and the limiting surface, the protrusion is tightly abutted to the limiting surface of the second limiting block 420, the limiting and fixing effects are achieved, and the lower end of the support upright post 2 is prevented from sliding randomly.

Example 3

The present embodiment is further optimized on the basis of embodiment 1 as follows: the elastic support assembly 9 includes a compression spring 930, a baffle plate 910, a connecting rod 920 and a driving device 940; standing groove 10 has been seted up to the lateral wall of spliced pole 6, baffle 910 sets up in standing groove 10, compression spring 930 is located between the inner wall of baffle 910 and standing groove 10, behind the locating pin 8 stretches into in standing groove 10 with baffle 910 interconnect, the one end and the interconnect of connecting rod 920, the other end of connecting rod 920 runs through behind the lateral wall of spliced pole 6 with drive arrangement 940 interconnect, the drive slot that the connecting rod 920 of being convenient for removed is seted up to the lateral wall of spliced pole 6.

After the technical scheme is adopted: locating pin 8 is under the effect of elastic support component 9, the trend of outside extrusion has all the time, the degree of depth of first spout 710 keeps unanimous, the degree of depth of second spout 810 keeps unanimous, tip intercommunication at second spout 810 is provided with locating hole 820, the degree of depth of locating hole 820 is greater than the degree of depth of second spout 810, pivot 7 is the slip in first spout 710, the effect of direction is played, locating pin 8 is the removal in second spout 810, guarantee that locating pin 8 can enter into in the locating hole 820, play the fixed effect in location to spliced pole 6, realize spliced pole 6's automatic positioning, do not need artifical extra to fix a position, the positioning accuracy has been guaranteed, reduce artifical intensity of labour simultaneously.

Example 4

The present embodiment is further optimized on the basis of embodiment 1 as follows: the driving device 940 includes a first toothed plate 941, a second toothed plate 942, a fixed shaft 943 and a driving wheel 944; first pinion rack 941 and second pinion rack 942 respectively with the connecting rod 920 interconnect of the 6 left and right sides of spliced pole, dead axle 943 rotates and sets up the outer wall at the connecting axle, the dead axle 943 is established to action wheel 944 cover, first pinion rack 941 and second pinion rack 942 are located the both sides of action wheel 944 respectively, action wheel 944 simultaneously with first pinion rack 941 and second pinion rack 942 each other.

After the technical scheme is adopted: realize the unblock to spliced pole 6 through drive arrangement 940, first pinion 941 and second pinion 942 set up respectively in the both sides of action wheel 944, and when action wheel 944 rotated, first pinion 941 and second pinion 942 moved in opposite directions or move dorsad simultaneously. When the connecting column 6 needs to be unlocked, the positioning pin 8 needs to be moved from the positioning hole 820, at this time, the driving wheel 944 is rotated, the first toothed plate 941 and the second toothed plate 942 respectively drive the connecting rod 920 to move in the direction away from the positioning hole 820, the compression spring 930 is further compressed, and the positioning pin 8 is removed from the positioning hole 820 to complete unlocking. It should be noted that, a driving groove for moving with the connecting rod 920 for one hundred years is formed on the outer wall of the connecting column 6.

Example 5

The present embodiment is further optimized on the basis of embodiment 1 as follows: the fixed shaft 943 is connected to a turning handle 11.

After the technical scheme is adopted: through set up rotation handle 11 on dead axle 943, the manual force application of being convenient for does not need extra power tool, improves work efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (6)

1. A mechanical support for a thin coal seam underground coal mine comprises a bearing top plate (110), a shield plate (120), a connecting rod (130), a bearing bottom plate (150) and a hydraulic upright column (140), wherein one end of the shield plate (120) is connected with the bearing top plate (110), the connecting rod (130) is pivoted between the other end of the shield plate (120) and the bearing bottom plate (150), and the hydraulic upright column (140) is supported between the bearing top plate (110) and the bearing bottom plate (150); the method is characterized in that: a supporting upright post (2) is arranged between the bearing top plate (110) and the bearing bottom plate (150), the lower end of the supporting upright post (2) is in sliding connection with the bearing bottom plate (150), the supporting upright post (2) and the bearing bottom plate (150) are mutually connected through a sliding assembly (3), two supporting plates (5) are arranged at the lower end of the bearing top plate (110) side by side, a connecting column (6) is connected at the upper end of the supporting upright post (2), the connecting column (6) is perpendicular to the axis of the supporting column, a rotating shaft (7) is arranged in a penetrating way in the connecting column (6), an arc-shaped first sliding groove (710) matched with the rotating shaft (7) is formed in the inner side wall of each supporting plate (5), positioning pins (8) are further arranged on the side walls at two ends of the connecting column (6), and a second sliding groove (810) consistent with the path of the first sliding groove (710), one end of the second sliding groove (810) is provided with a positioning hole (820), the depth of the positioning hole (820) is larger than that of the second sliding groove (810), the inner diameter of the positioning hole (820) is matched with the positioning pin (8), and the positioning pin (8) is provided with an elastic supporting assembly (9).

2. The mechanical support for the underground coal mine in the thin coal seam as claimed in claim 1, wherein: the sliding assembly (3) comprises a positioning block (310) and a positioning shaft (320); locating piece (310) and load-bearing floor (150) interconnect, logical groove (330) have been seted up to the upper end of locating piece (310), the lateral wall that leads to groove (330) runs through and has seted up waist type groove (331), waist type groove (331) are run through at the both ends of location axle (320), the lower extreme and the location axle (320) of support post (2) have been connected each other, location axle (320) are provided with locking Assembly (4).

3. The mechanical support for the underground coal mine in the thin coal seam as claimed in claim 2, wherein: the locking assembly (4) comprises a first limiting block (410), a sleeve (430) and a second limiting block (420); vertical spacing face has all been seted up to the one end lateral wall of first stopper (410) and second stopper (420), the holding surface of slope has all been seted up to the other end of first stopper (410) and second stopper (420), and a plurality of first stoppers (410) set up the diapire in logical groove (330) side by side, sleeve (430) cover is established on support post (2), second stopper (420) are articulated with the outer wall of sleeve (430).

4. The mechanical support for the underground coal mine in the thin coal seam as claimed in claim 1, wherein: the elastic supporting component (9) comprises a compression spring (930), a baffle plate (910), a connecting rod (920) and a driving device (940); the utility model discloses a convenient storage device, including spliced pole (6), baffle (910), compression spring (930), drive arrangement (940), drive device (940), standing groove (10) have been seted up to the lateral wall of spliced pole (6), baffle (910) set up in standing groove (10), compression spring (930) are located between the inner wall of baffle (910) and standing groove (10), locating pin (8) stretch into in standing groove (10) back and baffle (910) interconnect, the one end and the interconnect of connecting rod (920), the other end of connecting rod (920) runs through behind the lateral wall of spliced pole (6) and drive arrangement (940) interconnect, the drive groove that connecting rod (920) were convenient for removed is seted up to the lateral wall of spliced pole (6.

5. The mechanical support for the underground coal mine in the thin coal seam as claimed in claim 4, wherein: the driving device (940) comprises a first toothed plate (941), a second toothed plate (942), a fixed shaft (943) and a driving wheel (944); first pinion rack (941) and second pinion rack (942) respectively with connecting rod (920) interconnect of spliced pole (6) left and right sides, dead axle (943) rotate and set up the outer wall at the connecting axle, dead axle (943) are established in action wheel (944), first pinion rack (941) and second pinion rack (942) are located the both sides of action wheel (944) respectively, action wheel (944) are mutual with first pinion rack (941) and second pinion rack (942) simultaneously.

6. The mechanical support for the underground coal mine in the thin coal seam as claimed in claim 5, wherein: the fixed shaft (943) is connected with a rotating handle (11).

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