CN110173289B - Diversified smooth boots formula hydraulic support that moves certainly in coal mine tunnel - Google Patents
Diversified smooth boots formula hydraulic support that moves certainly in coal mine tunnel Download PDFInfo
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- CN110173289B CN110173289B CN201910503758.XA CN201910503758A CN110173289B CN 110173289 B CN110173289 B CN 110173289B CN 201910503758 A CN201910503758 A CN 201910503758A CN 110173289 B CN110173289 B CN 110173289B
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- 239000003245 coal Substances 0.000 title claims abstract description 22
- 238000005056 compaction Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000005493 welding type Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0418—Positioning devices and stabilizing means for the props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Road Paving Machines (AREA)
Abstract
The invention relates to a multi-azimuth self-moving sliding shoe type hydraulic support for a coal mine tunnel, belonging to coal mine machinery; the technical problem to be solved is to provide a multi-azimuth self-moving slipper hydraulic support for a coal mine roadway, which can be self-moved, has good stability and variable azimuth; the technical scheme is as follows: comprises a stepping structure, a lifting and supporting structure, a steering structure and an anti-roll structure; the structure of the stepping structure is as follows: the two rails are arranged in parallel, the support base is placed on the two rails, the two pushing jacks are arranged corresponding to the two rails, and the bottom lifting structure is arranged at the front end of the support base; the lifting supporting top structure is arranged on the bracket base; the invention discloses a coal mine anti-roll device, which is used for coal mines and is a coal mine machine.
Description
Technical Field
The invention discloses a multi-azimuth self-moving sliding shoe type hydraulic support for a coal mine tunnel, and belongs to coal mine machinery.
Background
With the continuous improvement of the mechanization degree of coal mines and the continuous updating of coal mining and transportation processes, the influence of auxiliary transportation on mine production is larger and larger. Without a suitable auxiliary transportation system, a mine cannot fully exert the production capacity of a mining working face, and high yield and high efficiency cannot be realized.
At present, a mine mostly uses an equipment train transportation technology of traditional rail winch steel wire rope traction, the transportation method has the defects of single transportation direction, poor steering in the moving process, easy running, falling off of a track, poor stability and serious potential safety hazard in the moving process, a large number of tracks need to be laid for walking, and a large amount of manpower, material resources and time are wasted; in addition, at least two supports are required to be matched in the advance support type end hydraulic support, and the front support and the rear support are required to move mutually as fulcrums in the moving process, so that the occupied roadway space is large, and the working efficiency is not high.
How to design a rational in infrastructure, design benefit guarantees that hydraulic support can be in the diversified self-moving in colliery tunnel, can guarantee its stability in the removal in-process again to can adjust hydraulic support's height according to the not co-altitude in tunnel, and then reduce jack's use quantity, reduce equipment cost's effect, realize that stability is good, the changeable ideal in position removes the transportation, safe and reliable's hydraulic support is the problem that needs to solve at present.
Disclosure of Invention
The invention overcomes the defects in the prior art, and aims to solve the technical problem of providing the multi-azimuth self-moving sliding shoe type hydraulic support for the coal mine tunnel, which can be self-moved, has good stability and changeable azimuth.
In order to solve the technical problems, the invention adopts the technical scheme that: a multi-azimuth self-moving sliding shoe type hydraulic support for a coal mine roadway comprises a stepping structure, a lifting supporting structure, a steering structure and an anti-roll structure;
the stepping structure comprises a support base, rails, pushing jacks and a bottom lifting structure, wherein the two rails are arranged in parallel, the support base is placed on the two rails, the bottom of the support base is in contact with the ground, the two pushing jacks are installed corresponding to the two rails, one end of each pushing jack is hinged to the support base, the other end of each pushing jack is hinged to the corresponding rail, the bottom lifting structure comprises an upper box body, a lower box body, a bottom lifting jack and rollers, the upper box body is fixed at the front end of the support base, the lower box body is movably sleeved in the upper box body from the lower part, the bottom lifting jacks are installed in the upper box body and the lower box body, one end of each bottom lifting jack is connected to the upper box body, the other end of each bottom lifting jack is connected to the lower box;
the lifting supporting top structure is arranged on the bracket base;
the rear end of the bracket base is provided with a steering structure, the steering structure comprises a steering support box body, a steering compaction jack and a steering jack, the steering support box body is positioned between two tracks, a gap is formed between the steering support box body and the two tracks, the steering support box body is higher than the tracks, the top of the steering support box body is provided with a sliding chute perpendicular to the tracks, cylinder bodies of the two vertically arranged steering compaction jacks are fixed on the bracket base, the end of a piston rod is fixed with a sliding block, the sliding block is positioned in the sliding chute and can slide left and right, one end of the steering jack is hinged on the steering support box body, and the other end of the steering jack is hinged;
the anti-roll structure comprises two groups of anti-roll structures which are respectively installed on two sides of the support base, each anti-roll structure comprises an anti-roll supporting leg and an anti-roll jack, one end of each anti-roll supporting leg is hinged to the side face of the support base, the other end of each anti-roll supporting leg is hinged to a piston rod of the horizontally arranged anti-roll jack, and a cylinder body of each anti-roll jack is hinged to the support base.
Specifically, the support base in the stepping structure is of an integrally welded box structure, the part of the support base between the two rails protrudes downwards to be in contact with the ground, and a clamping groove is formed in the position, corresponding to the rails, of the bottom of the support base and used for being matched with the rails;
the track is L-shaped in the stepping structure, the horizontal part of the track is in contact with the ground, and the vertical part of the track is a track body.
Furthermore, a plurality of friction plates are arranged in the clamping grooves on the bracket base.
Preferably, the two side surfaces of the inside of the upper box body in the bottom lifting structure are provided with sliding grooves, the two side surfaces of the outside of the lower box body are provided with guide rails, and the guide rails and the sliding grooves are matched for guiding.
Furthermore, a friction strip is arranged on the guide rail.
The lifting support structure comprises a top beam, a support upright post, a shield beam, front connecting rods, rear connecting rods and a balance jack, wherein the top beam is positioned above a support base, the support upright post is a hydraulic oil cylinder, a cylinder body of the support upright post is installed on the support base, a piston rod is installed on the lower end face of the top beam, one end of the shield beam is hinged with the top beam, the other end of the shield beam is hinged with one end of each of the two front connecting rods, the other end of each of the two front connecting rods is hinged on the support base, one end of the balance jack is hinged on a center line of the top beam, the other end of the balance jack is hinged on a center line of the shield beam, one end of each of the two rear connecting;
the shield beam is of an integrally welded box structure.
Furthermore, the stand column of the support is a double-telescopic stand column, the lower end of the stand column is arranged on the central line of the support base through a column socket and a pin shaft, and the upper end of the stand column is arranged in the middle of the top beam through a column cap and a pin shaft.
Preferably, in the step structure, one end of each of the two tracks is hinged to one end of one of the two long connecting rods, and the other ends of the two long connecting rods are hinged to each other.
Compared with the prior art, the invention has the following beneficial effects.
1. The invention has a stepping structure which comprises a bracket base, a track and a pushing jack, thereby realizing the self-moving function.
2. In the invention, the bracket base is stably matched with the track through the clamping groove, so that the phenomena of deviation and derailment are prevented; in addition, the two rails are hinged by two long connecting rods, so that the two rails have the function of a crawler walking type hydraulic support, and the left rail and the right rail independently move to realize actions of straight going, turning and the like.
3. The invention has the anti-roll structure, when the invention inclines to a certain side, the anti-roll structure of the side can be extended out in time, so that the invention is stabilized.
4. The steering mechanism has a steering structure, can realize multi-directional steering, and is more flexible and changeable in movement.
5. In addition, the support stand columns are arranged between the support base and the top beam through the column sockets, the column caps and the pin shafts, so that the support stand columns play a supporting role, and the overall height of the support stand column can be adjusted according to different heights of a roadway.
6. In the lifting support top structure, the shield beam is of an integrally welded box body structure and has better bearing capacity, and meanwhile, the double-front connecting rod and double-rear connecting rod structure is adopted, so that the connecting rods are high in rigidity, strength and reliability, and in addition, only one balance jack is used, the using number of the jacks is reduced, and the cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a step structure according to the present invention.
Fig. 3 is a schematic structural view of a steering structure and an anti-roll structure according to the present invention.
Fig. 4 is a partially enlarged view of a turning structure in the present invention.
FIG. 5 is a partial enlarged view of the raised bottom structure of the present invention.
FIG. 6 is a schematic structural view of the lifting jack structure of the present invention.
In the figure: the device comprises a stepping structure 1, a support base 11, a track 12, a pushing jack 13, a lifting structure 14, an upper box 141, a lower box 142, a lifting jack 143, rollers 144, a friction plate 15, a long connecting rod 16, a lifting support structure 2, a top beam 21, a support upright 22, a shield beam 23, a front connecting rod 24, a rear connecting rod 25, a balance jack 26, a steering structure 3, a steering support box 31, a steering hold-down jack 32, a steering jack 33, a sliding groove 34, a sliding block 35, a lateral-inclination-preventing structure 4, a lateral-inclination-preventing supporting leg 41 and a lateral-inclination-preventing jack 42.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the multi-azimuth self-moving sliding shoe type hydraulic support for the coal mine roadway comprises a stepping structure 1, a lifting supporting structure 2, a steering structure 3 and an anti-roll structure 4;
the stepping structure 1 comprises a support base 11, rails 12, pushing jacks 13 and a bottom lifting structure 14, wherein the two rails 12 are arranged in parallel, the support base 11 is placed on the two rails 12, the bottom of the support base 11 is in contact with the ground, the two pushing jacks 13 are installed corresponding to the two rails 12, one end of each pushing jack is hinged to the support base 11, the other end of each pushing jack is hinged to the corresponding rail 12, the bottom lifting structure 14 comprises an upper box 141, a lower box 142, a bottom lifting jack 143 and rollers 144, the upper box 141 is fixed at the front end of the support base 11, the lower box 142 is movably sleeved in the upper box 141 from the lower part, the bottom lifting jack 143 is installed inside the upper box 141 and the lower box 142, one end of each lifting jack is connected to the upper box 141, the other end of each pushing jack is connected to the lower box 142, one roller 144 is installed on each of two sides of the lower end of the;
the lifting supporting structure 2 is arranged on the bracket base 11;
the rear end of the support base 11 is provided with a steering structure 3, the steering structure 3 comprises a steering support box 31, a steering compaction jack 32 and a steering jack 33, the steering support box 31 is positioned between the two rails 12, a gap exists between the steering support box 31 and the two rails 12, the height of the steering support box is higher than that of the rails 12, the top of the steering support box 31 is provided with a sliding groove 34 vertical to the rails 12, the cylinder bodies of the two vertically arranged steering compaction jacks 32 are fixed on the support base 11, the end of the piston rod is fixed with a sliding block 35, the sliding block 35 is positioned in the sliding groove 34 and can slide left and right, one end of the steering jack 33 is hinged on the steering support box 31, and the other end of the steering jack is hinged;
the anti-roll structures 4 are two groups and are respectively installed on two sides of the support base 11, each anti-roll structure 4 comprises anti-roll supporting legs 41 and an anti-roll jack 42, one ends of the anti-roll supporting legs 41 are hinged to the side face of the support base 11, the other ends of the anti-roll supporting legs are hinged to piston rods of the anti-roll jacks 42 which are horizontally arranged, and cylinder bodies of the anti-roll jacks 42 are hinged to the support base 11.
Specifically, the support base 11 in the stepping structure 1 is an integrally welded box structure, a part of the support base between the two rails 12 protrudes downwards to be in contact with the ground, and a clamping groove is further formed in the position, corresponding to the rails 12, of the bottom of the support base and used for being matched with the rails 12;
the track 12 in the step structure 1 is an L-shaped structure, the horizontal part of the track 12 is in contact with the ground, and the vertical part is a track body.
Further, a plurality of friction plates 15 are arranged in the clamping grooves on the bracket base 11.
Preferably, in the bottom-raising structure 14, sliding grooves are formed on two side surfaces inside the upper box 141, and guide rails are formed on two side surfaces outside the lower box 142, and the guide rails and the sliding grooves are guided in a matching manner.
Furthermore, a friction strip is arranged on the guide rail.
Specifically, the lifting support structure 2 comprises a top beam 21, a support upright post 22, a shield beam 23, a front connecting rod 24, a rear connecting rod 25 and a balance jack 26, wherein the top beam 21 is positioned above the support base 11, the support upright post 22 is a hydraulic oil cylinder, a cylinder body of the support upright post 22 is installed on the support base 11, a piston rod is installed on the lower end face of the top beam 21, one end of the shield beam 23 is hinged with the top beam 21, the other end of the shield beam is hinged with one end of each of the two front connecting rods 24, the other end of each of the two front connecting rods 24 is hinged on the support base 11, one end of the balance jack 26 is hinged on a center line of the top beam 21, the other end of the balance jack is hinged on a center line of the shield beam 23, one end of each of;
the shield beam 23 is of an integrally welded box structure.
Further, the support column 22 is a double-telescopic column, the lower end of the double-telescopic column is installed on the central line of the support base 11 through a column socket and a pin shaft, and the upper end of the double-telescopic column is installed in the middle of the top beam 21 through a column cap and a pin shaft.
Preferably, in the step structure 1, one end of each of the two tracks 12 is hinged to one end of one of the two elongated links 16, and the other ends of the two elongated links 16 are hinged to each other.
When the invention needs to be moved: the piston rod of the bottom lifting jack 143 in the stepping structure 1 extends out to drive the lower box 142 to move downwards, the roller 144 presses on the rail 12 to press the rail 12 on the ground, and the front end of the lifting supporting structure 2 is lifted by a certain height, and then the piston rod of the jack 13 is pushed to extend out to enable the lifting supporting structure 2 to move forwards by a certain distance, the roller 144 rolls on the rail 12 by a corresponding distance, so that the sliding friction is changed into rolling friction, and the friction force is reduced; then, the piston rod of the bottom lifting jack 14 retracts, the lower box 142 drives the roller 144 to leave the rail 12, the lifting supporting structure 2 falls back, the bottom of the support base 11 contacts the ground, at the moment, most of the weight of the support base 11 and the lifting supporting structure 2 is borne by the ground, the piston rod of the pushing jack 13 retracts, the rail 12 is driven to move forwards by a corresponding distance, the step length of the movement of the self-moving device is achieved, and the self-moving device repeats the actions.
When the steering mechanism needs to steer, the steering mechanism is arranged in a steering structure 3 at the rear end of a support base 11, a piston rod of a steering compaction jack 32 extends out to enable a steering support box body 31 to be compacted on the ground, the support base 11 is lifted to a certain height, then a piston rod of a steering jack 33 extends out to push the steering mechanism to rotate for a certain angle, meanwhile, a sliding block 35 at the end of the piston rod of the steering compaction jack 32 slides for a certain distance in a sliding groove 34, then the piston rod of the steering compaction jack 32 retracts, the support base 11 falls to the ground, the steering support box body 31 is taken away from the ground, and finally the piston rod of the steering jack 33 retracts to drive the steering support box body 31 to reset.
When the invention has a side inclination, the piston rod of the same-side anti-side-inclination jack 42 extends out to push the anti-side-inclination supporting leg 41 out to form a stable triangular structure, so that the invention is prevented from side inclination, and when the invention does not need side inclination prevention, the piston rod of the anti-side-inclination jack 42 retracts, and the anti-side-inclination supporting leg 41 retracts to abut against the side surface of the bracket base, thereby saving the occupied space of the invention.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. The utility model provides a diversified smooth boots formula hydraulic support that moves certainly in colliery tunnel which characterized in that: comprises a stepping structure (1), a lifting and supporting structure (2), a steering structure (3) and an anti-roll structure (4);
the stepping structure (1) comprises a support base (11), rails (12), pushing jacks (13) and a bottom lifting structure (14), wherein the two rails (12) are arranged in parallel, the support base (11) is placed on the two rails (12) and the bottom of the support base (11) is in contact with the ground, the two pushing jacks (13) are installed corresponding to the two rails (12), one end of each pushing jack is hinged to the support base (11), the other end of each pushing jack is hinged to the corresponding rail (12), the bottom lifting structure (14) comprises an upper box body (141), a lower box body (142), a bottom lifting jack (143) and rollers (144), the upper box body (141) is fixed at the front end of the support base (11), the lower box body (142) is movably sleeved in the upper box body (141) from the lower part, the bottom lifting jack (143) is installed in the upper box body (141) and the lower box body (142), and one end of each lifting jack is connected to the upper box, the other end of the lower box body is connected on the lower box body (142), two sides of the lower end of the lower box body (142) are respectively provided with a roller (144), and the two rollers (144) are opposite to the two tracks (12);
the lifting supporting top structure (2) is arranged on the bracket base (11);
the rear end of the support base (11) is provided with a steering structure (3), the steering structure (3) comprises a steering support box body (31), a steering compaction jack (32) and a steering jack (33), the steering support box body (31) is positioned between the two tracks (12), a gap exists between the steering support box body and the two tracks (12), the steering support box body and the two tracks (12) and is higher than the tracks (12), the top of the steering support box body (31) is provided with a sliding chute (34) vertical to the tracks (12), cylinder bodies of the two vertically arranged steering compaction jacks (32) are fixed on the support base (11), the end of a piston rod is fixed with a sliding block (35), the sliding block (35) is positioned in the sliding chute (34) and can slide left and right, one end of the steering jack (33) is hinged to the steering support box body (31), and the other end of the steering jack is;
the anti-roll structure (4) is provided with two groups, the anti-roll structure is respectively arranged on two sides of the support base (11), the anti-roll structure (4) comprises anti-roll support legs (41) and anti-roll jacks (42), one ends of the anti-roll support legs (41) are hinged to the side faces of the support base (11), the other ends of the anti-roll support legs are hinged to piston rods of the anti-roll jacks (42) which are horizontally arranged, and cylinder bodies of the anti-roll jacks (42) are hinged to the support base (11).
2. The multi-azimuth self-moving sliding shoe type hydraulic support for the coal mine tunnel according to claim 1, is characterized in that: the support base (11) in the stepping structure (1) is of an integrally welded box structure, the part of the support base between the two rails (12) protrudes downwards to be contacted with the ground, and the position of the bottom of the support base corresponding to the rails (12) is also provided with a clamping groove used for being matched with the rails (12);
track (12) are L shape structure in step-by-step structure (1), and the horizontal part of track (12) and ground contact, and the vertical part is the track body.
3. The multi-azimuth self-moving sliding shoe type hydraulic support of the coal mine tunnel according to claim 2, is characterized in that: a plurality of friction plates (15) are arranged in the clamping grooves on the bracket base (11).
4. The multi-azimuth self-moving sliding shoe type hydraulic support for the coal mine tunnel according to claim 1 or 2, is characterized in that: in the bottom lifting structure (14), sliding grooves are formed in two side faces inside an upper box body (141), guide rails are formed in two side faces outside a lower box body (142), and the guide rails and the sliding grooves are matched for guiding.
5. The multi-azimuth self-moving sliding shoe type hydraulic support of the coal mine tunnel according to claim 4, is characterized in that: and a friction strip is arranged on the guide rail.
6. The multi-azimuth self-moving sliding shoe type hydraulic support for the coal mine tunnel according to claim 1 or 2, is characterized in that: the lifting supporting top structure (2) comprises a top beam (21), a support upright post (22), a shield beam (23), a front connecting rod (24), a rear connecting rod (25) and a balance jack (26), the top beam (21) is positioned above the support base (11), the support upright post (22) is a hydraulic oil cylinder, a cylinder body of the support upright post (22) is installed on the support base (11), a piston rod is installed on the lower end face of the top beam (21), one end of the shield beam (23) is hinged with the top beam (21), the other end of the shield beam is hinged with one end of each of two front connecting rods (24), the other end of each of the two front connecting rods (24) is hinged on the support base (11), one end of a balance jack (26) is hinged on the central line of the top beam (21), the other end of the balance jack is hinged on the central line of the shield beam (23), one end of each of two rear connecting rods (25) is hinged on two sides of the shield beam (23), and the other end of;
the shield beam (23) is of an integral welding type box body structure.
7. The multi-azimuth self-moving sliding shoe type hydraulic support for the coal mine tunnel according to claim 6, is characterized in that: the support stand column (22) is a double-telescopic stand column, the lower end of the support stand column is installed on the central line of the support base (11) through a column socket and a pin shaft, and the upper end of the support stand column is installed in the middle of the top beam (21) through a column cap and a pin shaft.
8. The multi-azimuth self-moving sliding shoe type hydraulic support for the coal mine tunnel according to claim 1 or 2, is characterized in that: in the stepping structure (1), one ends of the two tracks (12) are respectively hinged with one end of one long connecting rod (16), and the other ends of the two long connecting rods (16) are hinged together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910503758.XA CN110173289B (en) | 2019-06-12 | 2019-06-12 | Diversified smooth boots formula hydraulic support that moves certainly in coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910503758.XA CN110173289B (en) | 2019-06-12 | 2019-06-12 | Diversified smooth boots formula hydraulic support that moves certainly in coal mine tunnel |
Publications (2)
| Publication Number | Publication Date |
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| CN110173289A CN110173289A (en) | 2019-08-27 |
| CN110173289B true CN110173289B (en) | 2021-01-19 |
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| CN201910503758.XA Active CN110173289B (en) | 2019-06-12 | 2019-06-12 | Diversified smooth boots formula hydraulic support that moves certainly in coal mine tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113236352B (en) * | 2021-06-09 | 2024-05-10 | 淮南舜立机械有限责任公司 | Crawler-type fixed pulling and moving device and pulling and moving method |
| CN114087003B (en) * | 2021-11-17 | 2024-04-26 | 中国矿业大学 | Temporary support combined moving device and method for self-adaptive tunneling roadway overhead distance |
| CN115929396B (en) * | 2022-11-29 | 2023-08-22 | 太原科技大学 | Treatment device and method for tunnel floor heave |
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| CN204200258U (en) * | 2014-10-21 | 2015-03-11 | 徐州华东机械厂 | Hydraulic support assembling unwheeling body transfer |
| CN204267069U (en) * | 2014-11-28 | 2015-04-15 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Hydraulic support associating self-advancing Device |
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2019
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| CN110173289A (en) | 2019-08-27 |
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