Gob-side entry retaining supporting structure

Abstract

The utility model discloses a gob-side entry retaining supporting structure, which relates to the technical field of supporting structures, and comprises two bases, two hydraulic columns are fixedly connected to the upper sides of the two bases, a top plate is fixedly connected to the upper ends of the hydraulic columns, a fixing block is fixedly connected to the front side of the top plate, and the fixing block is fixedly connected to the rear side of the top plate. Two supporting mechanisms are arranged on the upper side of the base. The first connecting block, the first rotating plate, the fixing shaft, the clamping mechanism, the inserting hole, the second rotating plate, the second connecting block, the clamping block and the rotary knob are matched with one another, the rising height of the device can be locked, when the supporting structure can lock the rising height of the device, surrounding rock stress distribution can be better adjusted, and by limiting displacement of the top plate, the supporting structure can be conveniently adjusted. Part of top plate pressure is transmitted to the roadway side and the bottom plate, so that the surrounding rock of the whole roadway bears loads together, the self-bearing capacity of the surrounding rock can be fully exerted, and the pressure borne by the supporting structure is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a supporting structure technical field, concretely relates to a gob -siding entry retaining supporting structure. BACKGROUND

[0002] In the process of coal mining, the roof above the gob -siding entry retaining will produce the sinking tendency because of losing the support of the lower coal seam, and through the setting supporting structure, such as single hydraulic prop, wood pile etc., can effectively support the roof, prevent its excessive subsidence, thereby keep the shape and stability of the roadway, ensure the safe passage of personnel and equipment.

[0003] The prior art has the following problems:

[0004] The existing device cannot lock the height of the device during use, and the deformation of the roof lacks directionality, the roof may deform in any direction, including uneven subsidence and lateral extrusion, such irregular deformation will lead to more complex stress distribution of surrounding rock of the roadway, increase the difficulty of roof management, in addition, since the height of the device cannot be locked, the deformation and damage of the roof and the sidewall will continue, which requires more frequent roadway repair work, the existing device cannot be spliced according to the length, when the supporting structure cannot be spliced according to the length, it will face great difficulty in underground transportation, long and heavy supporting structure is difficult to pass through narrow transportation channels, such as inclined shaft, horizontal adit, etc., which may cause the transportation vehicle or equipment to fail to reach the installation site smoothly, and additional manpower and time are required for carrying and adjusting. UTILITY MODEL CONTENTS

[0005] The utility model provides a gob -siding entry retaining supporting structure to solve the problems in the above background technical.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0007] A gob -siding entry retaining supporting structure, comprising a base, the upper side of two bases is fixedly connected with two hydraulic columns, the upper end of the hydraulic column is fixedly connected with a roof, the front side of the roof is fixedly connected with a fixed block, the upper side of the base is provided with two supporting mechanisms.

[0008] The further improvement of the technical scheme of the utility model is that: the supporting mechanism comprises a first connecting block, the upper side of the first connecting block is fixedly connected with the roof, the lower side of the first connecting block is rotatably connected with a first rotating plate, the lower end of the first rotating plate is fixedly connected with a fixed shaft, a plurality of insertion holes are formed in the outer wall of the fixed shaft, the outer wall of the insertion hole is rotatably connected with a second rotating plate, the lower end of the second rotating plate is rotatably connected with a second connecting block.

[0009] The further improvement in the technical scheme of the utility model lies in that the lower end of the second connecting block is fixedly connected with the base, the left side of the second rotating plate is fixedly connected with a clamping block, and the clamping block is internally provided with a clamping mechanism.

[0010] The further improvement in the technical scheme of the utility model lies in that the clamping mechanism comprises a knob, the right side of the knob is provided with a first bevel gear, the outer wall of the first bevel gear is in meshing connection with a second bevel gear, the outer wall of the second bevel gear is fixedly connected with a connecting plate in penetration, the outer wall of the connecting plate is in threaded connection with a second threaded rod, the right side of the second threaded rod is fixedly connected with a movable block, and the left side of the movable block is provided with an inclined slot.

[0011] The further improvement in the technical scheme of the utility model lies in that the inner surface of the inclined slot is in sliding connection with a limiting column, the outer wall of the limiting column is fixedly connected with a plug-in column, the outer wall of the plug-in column is in movable connection with a plug hole, and the outer wall of the plug-in column is in sliding connection with the clamping block.

[0012] The further improvement in the technical scheme of the utility model lies in that the rear side of the top plate is provided with an opening, the inner surface of the opening is provided with an insertion slot on the left and right sides, and the outer wall of the fixed block is in movable connection with the opening.

[0013] The further improvement in the technical scheme of the utility model lies in that the inner surface of the fixed block is fixedly connected with a motor, the output end of the motor is fixedly connected with a first threaded rod, the outer wall of the first threaded rod is in threaded connection with a trapezoidal block, the two inclined surfaces of the trapezoidal block are movably connected with plug-in blocks, the front side of the plug-in block is fixedly connected with a support plate, the inner wall of the fixed block is fixedly connected with limiting rods on the left and right sides, and the outer wall of the limiting rod is sleeved with a spring.

[0014] The further improvement in the technical scheme of the utility model lies in that one end of the spring is fixedly connected with the fixed block, the other end of the spring is fixedly connected with the support plate, the outer wall of the limiting rod is in sliding connection with the support plate, and the outer wall of the plug-in block is in movable connection with the insertion slot.

[0015] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0016] 1、The utility model provides a kind of along empty roadway retaining structure, and the mutual cooperation of first connecting block, first rotating plate, fixed shaft, clamping mechanism, plug hole, second rotating plate, second connecting block, clamping block and knob can lock the height of device elevation, when supporting structure can lock the height of device elevation, it can better adjust stress distribution of surrounding rock, part of roof pressure is transmitted to roadway side and floor by limiting the displacement of roof, so that entire roadway surrounding rock bears load together, so it can give full play to the self-bearing capacity of surrounding rock, reduce the pressure borne by supporting structure.

[0017] 2. The utility model provides a kind of along empty roadway retaining structure, and the mutual cooperation of top plate, opening, slot, motor, first threaded rod, trapezoidal block, plug block, support plate, limiting rod and spring can be spliced according to length, and by splicing according to length, supporting structure can be flexibly adjusted according to specific geological condition, to adapt to different support needs, and using splicable structure form, supporting component can be decomposed into shorter, lighter unit, convenient to transport to construction site. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is overall structure schematic diagram of the utility model;

[0019] Figure 2 It is support structure schematic diagram of the utility model;

[0020] Figure 3 It is clamping structure schematic diagram of the utility model;

[0021] Figure 4 It is part structure section schematic diagram of the utility model;

[0022] Figure 5 It is part structure internal schematic diagram of the utility model.

[0023] In the drawing: 1, base;2, hydraulic column;3, support mechanism;4, fixed block;5, top plate;6, opening;7, slot;8, motor;9, first threaded rod;10, trapezoidal block;11, plug block;12, support plate;13, limiting rod;14, spring;31, first connecting block;32, first rotating plate;33, fixed shaft;34, clamping mechanism;35, jack;36, second rotating plate;37, second connecting block;38, clamping block;341, knob;342, first bevel gear;343, second bevel gear;344, second threaded rod;345, connecting plate;346, movable block;347, inclined slot;348, limiting column;349, plug column. DETAILED DESCRIPTION

[0024] To make the technical means, creative features, achieve purpose and effect of the utility model easy to understand, further illustrate the utility model in the following combining with specific embodiment:

[0025] For example, Figure 1The utility model provides a kind of along empty roadway supporting structure, including base 1, the upper side of two base 1 is fixedly connected with two hydraulic columns 2, the upper end of hydraulic column 2 is fixedly connected with top plate 5, the front side of top plate 5 is fixedly connected with fixed block 4, the upper side of base 1 is provided with two support mechanisms 3, base 1 plays the support effect of foundation, hydraulic column 2 can realize the lifting operation to top plate 5, the height of top plate 5 is changed by the extension of hydraulic column 2, to support the top plate of along empty roadway, fixed block 4 is connected with top plate 5, provide foundation for subsequent connection with other components, the two support mechanisms 3 set on base 1 then further assist the support of top plate 5 and the adjustment of support structure height etc., and the component such as hydraulic column 2 jointly acts, so that entire along empty roadway supporting structure can better adapt to the actual situation of roadway, and effectively support effect is played to roadway surrounding rock.

[0026] As Figure 2 The utility model provides a kind of technical scheme: preferably, support mechanism 3 includes first connecting block 31, the upper side of first connecting block 31 is fixedly connected with top plate 5, the lower side of first connecting block 31 is rotatably connected with first rotating plate 32, the lower end of first rotating plate 32 is fixedly connected with fixed shaft 33, a plurality of insertion holes 35 are formed in the outer wall of fixed shaft 33, the outer wall of insertion hole 35 is rotatably connected with second rotating plate 36, the lower end of second rotating plate 36 is rotatably connected with second connecting block 37, the lower end of second connecting block 37 is fixedly connected with base 1, the left side of second rotating plate 36 is fixedly connected with clamping block 38, clamping mechanism 34 is arranged in the inside of clamping block 38, first connecting block 31 is fixedly connected with top plate 5, clamping block 38 is connected with top plate 5, first rotating plate 32 is rotatably connected with first connecting block 31, so that first rotating plate 32 can rotate around connecting point, to change its angle, a plurality of insertion holes 35 are formed in the fixed shaft 33 of first rotating plate 32 lower end, second rotating plate 36 is rotatably connected with fixed shaft 33, the second connecting block 37 of second rotating plate 36 lower end is fixedly connected with base 1, so that first rotating plate 32 and second rotating plate 36 can be adjusted by rotating the length of support mechanism 3, to adjust the height of entire support structure, clamping mechanism 34 in clamping block 38 is used to lock the position of first rotating plate 32 and second rotating plate 36 after adjusting to suitable height, prevent it from rotating at will, guarantee the stability of support structure height.

[0027] As Figure 3As shown, the utility model provides a technical scheme: preferably, the clamping mechanism 34 includes knob 341, the right side of knob 341 is provided with first bevel gear 342, the outer wall of first bevel gear 342 is connected with second bevel gear 343, the outer wall of second bevel gear 343 is fixedly connected with connecting plate 345, the outer wall of connecting plate 345 is threadedly connected with second threaded rod 344, the right side of second threaded rod 344 is fixedly connected with movable block 346, the left side of movable block 346 is provided with inclined slot 347, the inner surface of inclined slot 347 is slidably connected with limiting column 348, the outer wall of limiting column 348 is fixedly connected with plug post 349, the outer wall of plug post 349 is movably connected with jack 35, the outer wall of plug post 349 is slidably connected with clamping block 38, when rotating knob 341, knob 341 drives first bevel gear 342 connected with it to rotate, first bevel gear 342 is engaged with second bevel gear 343, thereby drives second bevel gear 343 to rotate, when second bevel gear 343 rotates, drives second threaded rod 344 to rotate through fixedly connected connecting plate 345, because second threaded rod 344 is threadedly connected with connecting plate 345, so the rotation of second threaded rod 344 will make it axial movement on connecting plate 345, and then drive movable block 346 on the right side to move, the inclined slot 347 on movable block 346 is slidably connected with limiting column 348, when movable block 346 moves, inclined slot 347 will push limiting column 348, make limiting column 348 drive plug post 349 to move, when plug post 349 is inserted into the jack 35 on fixed shaft 33, can lock the relative position of first rotating plate 32 and second rotating plate 36, realize the locking of the height of support structure heightening, when plug post 349 is pulled out from jack 35, first rotating plate 32 and second rotating plate 36 can relatively rotate, adjust height.

[0028] As Figures 4-5As shown, the utility model provides a technical scheme: preferably, the rear side of top plate 5 is equipped with opening 6, the inner surface left and right sides of opening 6 are equipped with slot 7, the outer wall of fixed block 4 is movably connected with opening 6, the inner surface of fixed block 4 is fixedly connected with motor 8, the output of motor 8 is fixedly connected with first threaded rod 9, the outer wall of first threaded rod 9 is threadedly connected with trapezoidal block 10, the two inclined surfaces of trapezoidal block 10 are movably connected with plug block 11, the front side of plug block 11 is fixedly connected with support plate 12, the inner wall left and right sides of fixed block 4 are fixedly connected with limiting rod 13, the outer wall of limiting rod 13 is sleeved with spring 14, one end of spring 14 is fixedly connected with fixed block 4, the other end of spring 14 is fixedly connected with support plate 12, the outer wall of limiting rod 13 is slidably connected with support plate 12, the outer wall of plug block 11 is movably connected with slot 7, when needing to splice support structure, the component with fixed block 4 is inserted into the opening 6 in the rear side of top plate 5, at this time, fixed block 4 is movably connected with opening 6, the motor 8 in fixed block 4 is started, and motor 8 drives first threaded rod 9 to rotate, because first threaded rod 9 is threadedly connected with trapezoidal block 10, so the rotation of first threaded rod 9 will make trapezoidal block 10 move on first threaded rod 9, the two inclined surfaces of trapezoidal block 10 are movably connected with plug block 11, when trapezoidal block 10 moves, will push plug block 11 to move to both sides, and support plate 12 on the front side of plug block 11 slides on limiting rod 13, guarantee the stability of plug block 11 movement, and spring 14 plays the role of buffering and resetting, when plug block 11 is inserted into the slot 7 in the inner surface left and right sides of opening 6, can splice two components together, by this way, can flexibly splice support structure according to specific geological conditions and support demand, change its length, and adopt this splicable structure form, convenient to decompose support component into shorter, lighter unit, convenient transportation to construction site.

[0029] The working principle of the gob-side entry retaining support structure will be described in detail below.

[0030] As Figures 1-5As shown, the first connecting block 31 is fixedly connected with the top plate 5, connecting the support mechanism 3 with the top plate 5, the first rotating plate 32 is rotatably connected with the first connecting block 31, so that the first rotating plate 32 can rotate around the connecting point to change its angle, a plurality of insertion holes 35 are formed in the fixed shaft 33 at the lower end of the first rotating plate 32, the second rotating plate 36 is rotatably connected with the fixed shaft 33, and the second connecting block 37 at the lower end of the second rotating plate 36 is fixedly connected with the base 1, so that the first rotating plate 32 and the second rotating plate 36 can be adjusted in length by rotating, thereby adjusting the height of the entire support structure, and the clamping mechanism 34 in the clamping block 38 is used to lock the positions of the first rotating plate 32 and the second rotating plate 36 after being adjusted to the appropriate height, preventing them from rotating at will and ensuring the stability of the support structure height, when the knob 341 is rotated, the first bevel gear 342 connected with the knob 341 is also rotated, the first bevel gear 342 is engaged with the second bevel gear 343, thereby driving the second bevel gear 343 to rotate, when the second bevel gear 343 rotates, the second threaded rod 344 is driven to rotate through the fixedly connected connecting plate 345, since the second threaded rod 344 is threadedly connected with the connecting plate 345, the rotation of the second threaded rod 344 will cause it to move axially on the connecting plate 345, thereby driving the movable block 346 on the right side to move, the inclined slot 347 on the movable block 346 is slidably connected with the limiting column 348, when the movable block 346 moves, the inclined slot 347 will push the limiting column 348, causing the limiting column 348 to drive the insertion column 349 to move, when the insertion column 349 is inserted into the insertion hole 35 in the fixed shaft 33, the relative positions of the first rotating plate 32 and the second rotating plate 36 can be locked, achieving the locking of the height of the support structure; when the insertion column 349 is pulled out of the insertion hole 35, the first rotating plate 32 and the second rotating plate 36 can rotate relative to each other to adjust the height, when it is necessary to splice the support structure, the part with the fixed block 4 is inserted into the opening 6 at the rear side of the top plate 5, at this time the fixed block 4 is movably connected with the opening 6, the motor 8 in the fixed block 4 is started, the motor 8 drives the first threaded rod 9 to rotate, since the first threaded rod 9 is threadedly connected with the trapezoidal block 10, the rotation of the first threaded rod 9 will cause the trapezoidal block 10 to move on the first threaded rod 9, the two inclined surfaces of the trapezoidal block 10 are movably connected with the insertion block 11, when the trapezoidal block 10 moves, it will push the insertion block 11 to move to both sides, the support plate 12 at the front side of the insertion block 11 slides on the limiting rod 13, ensuring the stability of the movement of the insertion block 11, and the spring 14 plays a buffering and resetting role, when the insertion block 11 is inserted into the insertion slots 7 at the left and right sides of the inner surface of the opening 6, the two parts can be spliced together, in this way, the support structure can be spliced flexibly according to the specific geological conditions and support requirements, the length thereof can be changed, and the use of this splicable structure form facilitates the decomposition of the support parts into shorter and lighter units, facilitating transportation to the construction site.

[0031] The utility model has made the detailed description to the utility model generally above, but can make some modification or improvement to it on the basis of the utility model, and this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the utility model's thought spirit, all are within the utility model's protection scope.

Claims

1. A gob-side entry retaining support structure, characterized by: The utility model provides a kind of two base (1), the upper side of two described base (1) is fixedly connected with two hydraulic columns (2), the upper end of the hydraulic column (2) is fixedly connected with top plate (5), the front side of top plate (5) is fixedly connected with fixed block (4), the upper side of base (1) is provided with two support mechanisms (3).

2. A gob-side entry retaining support structure according to claim 1, characterised in that: The support mechanism (3) includes a first connecting block (31), the upper side of the first connecting block (31) is fixedly connected with the top plate (5), the lower side of the first connecting block (31) is rotatably connected with a first rotating plate (32), the lower end of the first rotating plate (32) is fixedly connected with a fixed shaft (33), a plurality of insertion holes (35) are formed in the outer wall of the fixed shaft (33), the outer wall of the insertion hole (35) is rotatably connected with a second rotating plate (36), the lower end of the second rotating plate (36) is rotatably connected with a second connecting block (37).

3. A gob-side entry retaining support structure according to claim 2, characterised in that: The lower end of the second connecting block (37) is fixedly connected with the base (1), the left side of the second rotating plate (36) is fixedly connected with a clamping block (38), and the clamping block (38) is provided with a clamping mechanism (34) inside.

4. A gob-side entry retaining support structure according to claim 3, characterised in that: The clamping mechanism (34) includes a knob (341), the right side of the knob (341) is provided with a first bevel gear (342), the outer wall of the first bevel gear (342) is meshingly connected with a second bevel gear (343), the outer wall of the second bevel gear (343) is fixedly connected with a connecting plate (345) penetrating through, the outer wall of the connecting plate (345) is threadedly connected with a second threaded rod (344), the right side of the second threaded rod (344) is fixedly connected with a movable block (346), and the left side of the movable block (346) is provided with an inclined slot (347).

5. A gob-side entry retaining support structure according to claim 4, characterised in that: The inner surface of the inclined slot (347) is slidably connected with a limiting column (348), the outer wall of the limiting column (348) is fixedly connected with an insertion column (349), the outer wall of the insertion column (349) is movably connected with the insertion hole (35), and the outer wall of the insertion column (349) is slidably connected with the clamping block (38).

6. A gob-side entry retaining support structure according to claim 1, wherein: The rear side of the top plate (5) is provided with an opening (6), the inner surface of the opening (6) is provided with an insertion slot (7) on the left and right sides, and the outer wall of the fixed block (4) is movably connected with the opening (6).

7. A gob-side entry retaining support structure according to claim 6, characterised in that: The inner surface of the fixed block (4) is fixedly connected with a motor (8), the output end of the motor (8) is fixedly connected with a first threaded rod (9), the outer wall of the first threaded rod (9) is threadedly connected with a trapezoidal block (10), the two inclined surfaces of the trapezoidal block (10) are movably connected with an insertion block (11), the front side of the insertion block (11) is fixedly connected with a support plate (12), the inner wall of the fixed block (4) is fixedly connected with a limiting rod (13) on the left and right sides, and the outer wall of the limiting rod (13) is sleeved with a spring (14).

8. A gob-side entry retaining support structure according to claim 7, characterised in that: One end of the spring (14) is fixedly connected with the fixed block (4), the other end of the spring (14) is fixedly connected with the support plate (12), the outer wall of the limiting rod (13) is slidably connected with the support plate (12), and the outer wall of the insertion block (11) is movably connected with the insertion slot (7).

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