CN216477406U

CN216477406U - Roadway support device

Info

Publication number: CN216477406U
Application number: CN202122446384.8U
Authority: CN
Inventors: 王梁; 王海军; 王洪磊; 赵建; 刘少权; 曹云; 孟建新; 杨晓辉; 刘凡; 王振; 杜学飞; 赵嘉宇
Original assignee: General Coal Research Institute Co Ltd
Current assignee: General Coal Research Institute Co Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-05-10
Anticipated expiration: 2031-10-11

Abstract

The utility model relates to the technical field of roadway support, and discloses a roadway support device, which comprises a support shed frame, a support mounting vehicle and a support dismounting vehicle, wherein the support mounting vehicle is arranged on the support shed frame; the supporting shed frame is detachably supported in the roadway; the support mounting vehicle comprises a first vehicle body and a mounting assembly arranged on the first vehicle body, and the mounting assembly is used for supporting the supporting shed frame in a roadway; the support dismantling vehicle comprises a second vehicle body and a dismantling assembly arranged on the second vehicle body, wherein the dismantling assembly is used for dismantling the support shed frame from the roadway and transferring the support shed frame to the support installing vehicle. The roadway supporting device provided by the utility model can realize supporting along with excavation and automatic supporting, realizes automation and no-man during working face excavation, avoids the supporting work of personnel in the environment full of dust and noise, and reduces the risk of occupational disease of the personnel.

Description

Roadway support device

Technical Field

The utility model relates to the technical field of roadway support, in particular to a roadway support device.

Background

The existing mechanical excavation of the rectangular roadway generally adopts an excavation method along with excavation and support, a large number of workers are required to work cooperatively on the roadway working surface, and the workers are all in extremely severe working environment. According to the statistics of national Weijian Commission, by the end of 2018, the nationwide cumulative report of more than 97 thousands of occupational cases is at the top of the world, and most of the occupational cases are concentrated in mine workers. In mines, particularly in mine driving working faces, the environment is severe, dust, heat damage, noise and toxic and harmful gases form four hazards, the health of workers is seriously threatened, various occupational diseases such as pneumoconiosis, deafness, skin diseases, rheumatism, nervous system diseases and the like are caused, and the number of deaths caused by the occupational diseases per year is far beyond the number of deaths caused by accidents.

In addition, in the existing rectangular roadway driving construction process, the supporting work of the roadway is the main reason for restricting the realization of automation and no humanization. At present, in a common bolting mode, the bolting work is still difficult to realize automation temporarily, although some equipment of manufacturers is tested, the failure rate is high, and the bolting work is not popularized on a large scale at present.

SUMMERY OF THE UTILITY MODEL

The present invention is based on the discovery and recognition by the inventors of the following facts and problems: at present, in a common anchor rod supporting mode, the anchoring work is still difficult to realize automation temporarily, a large number of workers are required to work cooperatively at the same time, the workers are in extremely severe working environments, and the health of the workers is seriously threatened.

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides a roadway supporting device, which comprises a supporting shed frame, a support mounting vehicle and a support dismounting vehicle, wherein the supporting shed frame is detachably supported in a roadway; the support mounting vehicle comprises a first vehicle body and a mounting assembly arranged on the first vehicle body, wherein the mounting assembly is used for supporting the supporting shed frame in a roadway; the support disassembly vehicle comprises a second vehicle body and a disassembly assembly arranged on the second vehicle body, wherein the disassembly assembly is used for disassembling the support shed frame from the roadway and transferring the support shed frame to the support assembly vehicle.

The roadway supporting device provided by the utility model can realize supporting along with excavation and automatic supporting, realizes automation and no-man during working face excavation, avoids the supporting work of personnel in the environment full of dust and noise, and reduces the risk of occupational disease of the personnel.

In some embodiments, the supporting canopy frame comprises a top beam, two shoulder beams, two support columns and two upper connecting shoes, wherein the top beam is suitable for abutting against the top of the roadway; the first ends of the shoulder beams are rotatably connected with one end of the top beam, and the two shoulder beams are respectively connected with the two ends of the top beam; the support column is rotatably connected with the second end of the shoulder beam, the two support columns are respectively connected with the two shoulder beams, the support column can stretch and retract, the support column comprises an upper support leg, a lower support leg and a locking assembly, the upper support leg is rotatably connected with the second end of the shoulder beam, a ratchet bar is arranged on the inner wall surface of the upper support leg, the lower support leg is slidably matched in the upper support leg along the length direction of the upper support leg, the locking assembly is connected with the lower support leg, the locking assembly comprises a pawl, the pawl can rotate between an opening position and a closing position, the pawl is meshed with the ratchet bar to lock the upper support leg and the lower support leg at the opening position, and the pawl is separated from the ratchet bar at the closing position; the upper connecting boots are rotatably connected with the second ends of the shoulder beams, the upper connecting boots are positioned on the outer sides of the shoulder beams and the supporting columns, the upper connecting boots are suitable for abutting against the side walls of the roadway, each upper connecting boot comprises an upper connecting portion and a connecting portion, the connecting portion is rotatably pivoted with the second ends of the shoulder beams, and barbs are arranged on the upper connecting portions.

In some embodiments, the supporting shed frame further comprises a flexible pad, the flexible pad is arranged on the top beam along the length direction of the top beam, the longitudinal section of the flexible pad is arched, and the thickness of the flexible pad is gradually reduced from the middle to the two ends.

In some embodiments, the locking assembly further comprises a housing, a connecting rod, an operating rod, a first stop, a first return spring, a locking pin guide rod, and a second return spring, the housing is connected to the upper end of the lower leg, at least a portion of the pawl is located within the housing, and the pawl is rotatably pivoted to the housing; the connecting rod is positioned in the shell, and one end of the connecting rod is connected with the tail end of the pawl; one end of the operating rod is positioned in the shell, the other end of the connecting rod is connected with the operating rod, the operating rod can slide along the length direction of the shell to drive the ratchet racks to rotate between the opening position and the closing position, the ratchet racks, the pawls and the connecting rod are all two and in one-to-one correspondence, the two ratchet racks are oppositely arranged on the inner wall surface of the upper supporting leg, and the tail parts of the two pawls are mutually pressed at the opening position; the other end of the operating rod is positioned outside the shell and is connected with the first stop piece, the first return spring is sleeved outside the operating rod, one end of the first return spring abuts against the outer wall surface of the shell, and the other end of the first return spring abuts against the first stop piece; the locking pin is connected with the operating lever and penetrates through the shell along the thickness direction of the shell, the locking pin can slide along the thickness direction of the shell, a first through hole is formed in the lower end of the upper supporting leg, the locking pin is suitable for being matched in the first through hole so that the upper supporting leg and the lower supporting leg are relatively fixed, a second through hole formed along the radial direction of the locking pin is formed in the locking pin, the operating lever penetrates through the second through hole, and the size of the second through hole in the length direction of the locking pin is larger than that of the operating lever in the length direction of the locking pin; a sliding groove is formed in the side wall of the operating rod along the length direction of the operating rod, the locking pin guide rod is connected with the locking pin, and one end of the locking pin guide rod is slidably matched in the sliding groove; the second reset spring cover is established the outside of locking round pin, the week side of locking round pin is equipped with the annular arch, second reset spring's one end with the protruding counterbalance of annular links to each other, the other end with the inner wall of casing offsets.

In some embodiments, the supporting shed frame further comprises a foot component, the foot component is rotatably connected with the lower end of the lower supporting leg, the foot component comprises a foot body, a connecting disc, a foot closing slide block, a foot connecting rod, a slide block body, a push plate, a third return spring guide rod and a second stop part, the connecting disc is connected with the foot body, and the connecting disc is rotatably connected with the lower end of the lower supporting leg; the lower supporting leg is provided with a sliding rail, the foot closing sliding block is slidably arranged in the sliding rail, and at least part of the foot closing sliding block is positioned on the outer side of the lower supporting leg, so that the upper supporting leg can be in contact with the foot closing sliding block; one end of the bottom foot connecting rod is rotatably connected with the connecting disc, the other end of the bottom foot connecting rod is rotatably connected with the foot folding sliding block, the bottom foot connecting rod and the lower support leg are respectively rotatably connected with different parts of the connecting disc, and the bottom foot connecting rod can drive the bottom foot body to rotate; the sliding rail is arranged in the lower supporting leg, the sliding block body is arranged in the sliding rail in a sliding mode, and the push plate is located on the outer side of the lower supporting leg; one end of the third reset spring guide rod penetrates through one end of the slide rail along the length direction of the slide rail and is connected with the slide block, the other end of the third reset spring guide rod is connected with the second stop part, the third reset spring is sleeved on the third reset spring guide rod, one end of the third reset spring abuts against the second stop part, and the other end of the third reset spring abuts against one end of the slide rail.

In some embodiments, the mounting assembly includes two first brackets, two first sliding ways, two first nut blocks, two first lead screws, two first driving devices, and two mounting arms, where the two first brackets are respectively disposed on two sides of the first vehicle body in the width direction; the first slide way is connected with the first support and extends along the length direction of the first vehicle body; the first nut sliding block is slidably arranged in the first slideway, and at least part of the first nut sliding block is positioned outside the first slideway; the first lead screw is rotatably arranged in the first slide way along the length direction of the first slide way, and is in threaded fit with the first nut slide block; the first driving device is arranged at one end of the first slideway and connected with the first lead screw, and the first driving device is used for driving the first lead screw to rotate and driving the first nut sliding block to slide along the first slideway; the mounting arm with it links to each other to strut the rack detachably, the mounting arm be used for with strut the rack and strut in the tunnel. The first driving device comprises a first motor and a first speed reducer, and the first motor is in transmission connection with one end of the first lead screw through the first speed reducer.

In some embodiments, the detaching assembly comprises a second bracket, a second slideway, a second nut slider, a second lead screw, a second driving device and a mounting arm, and the second bracket is connected with the second vehicle body in a liftable manner; the second slide ways are connected with the second support and extend along the length direction of the second vehicle body, the number of the second slide ways is two, and the two second slide ways are arranged at intervals along the width direction of the second vehicle body; the second nut sliding block is slidably arranged in the second slideway, and at least part of the second nut sliding block is positioned outside the second slideway; the second lead screw is rotatably arranged in the second slide way along the length direction of the second slide way, and is in threaded fit with the second nut slide block; the second driving device is arranged at one end of the second slideway and connected with the second lead screw, and the second driving device is used for driving the second lead screw to rotate and driving the second nut sliding block to slide along the second slideway; the mounting arm is detachably connected with the supporting shed frame and is used for dismounting the supporting shed frame from the roadway; the second support comprises a connecting plate, a first lifting oil cylinder and a second lifting oil cylinder, one end of the connecting plate is rotatably connected with the second vehicle body, and the other end of the connecting plate is rotatably connected with the second slideway; one end of the first lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the first lifting oil cylinder is rotatably connected with the first end of the second slideway; one end of the second lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the second lifting oil cylinder is rotatably connected with the second end of the second slideway.

In some embodiments, the mounting arm comprises a large arm, a small arm, a large arm tilting cylinder, a small arm tilting cylinder, a large arm telescopic cylinder, a small arm telescopic cylinder and an unlocking component, the large arm is telescopic, and a first end of the large arm is rotatably connected with the first vehicle body or the second vehicle body; the small arm is telescopic, the first end of the small arm is rotatably connected with the second end of the large arm, at least two supporting hands are arranged on the small arm, and the supporting hands are suitable for being detachably connected with the supporting shed frame; the first end of the large arm tilting cylinder is rotatably connected with the first vehicle body or the second vehicle body, and the second end of the large arm tilting cylinder is rotatably connected with the large arm; the first end of the small arm tilting oil cylinder is rotatably connected with the large arm, and the second end of the small arm tilting oil cylinder is rotatably connected with the small arm; the large arm comprises a first large arm and a second large arm, the first large arm is slidably arranged in the second large arm, the large arm telescopic cylinder is arranged in the large arm, the first end of the large arm telescopic cylinder is connected with the first large arm, and the second end of the large arm telescopic cylinder is connected with the second large arm; the small arm comprises a first small arm and a second small arm, the first small arm is slidably arranged in the second small arm, the small arm telescopic cylinder is arranged in the small arm, the first end of the small arm telescopic cylinder is connected with the first small arm, and the second end of the small arm telescopic cylinder is connected with the second small arm; the unlocking assembly comprises an unlocking cylinder and an unlocking rod, the unlocking cylinder is arranged on the outer wall of the small arm along the length direction of the small arm, one end of the unlocking cylinder is connected with the small arm, and the other end of the unlocking cylinder is connected with the unlocking rod.

In some embodiments, the supporting arm comprises a mounting seat, a first supporting piece, a second supporting piece, a first pull rod, a second pull rod and an adjusting rod, wherein the mounting seat is fixedly connected with the small arm; the first end of the first supporting piece and the first end of the second supporting piece are both rotatably connected with the mounting seat; the first end of the first pull rod is rotatably connected with the second end of the first supporting piece, and the first end of the second pull rod is rotatably connected with the second end of the second supporting piece; one end of the adjusting rod is rotatably connected with the second end of the first pull rod and the second end of the second pull rod respectively, and the adjusting rod penetrates through the mounting seat and can move along the length direction of the mounting seat.

In some embodiments, the rack-dismantling truck further comprises a drill stand rotatably provided on the second truck body. The drill frame consists of a support frame, a top plate and a drill box; the top plate is provided with a positioning hole, the top plate is connected with the upper end of the support frame, and the top plate can move along the length direction of the support frame; the drill box is connected with the lower end of the support frame and is used for connecting a drill rod or an anchor rod.

Drawings

Fig. 1 is an overall complete set schematic of the present invention.

Fig. 2 is a structural view of the rack mount carriage of the present invention, in which the first rack is not shown.

Fig. 3 is a structural view of the rack mount carriage of the present invention, in which the mounting arm is not shown.

Fig. 4 is a partial enlarged view at H in fig. 3.

Fig. 5 is a structural view of the truck for disassembling stand according to the present invention.

Fig. 6 is a structural view of the mounting arm in the present invention.

Fig. 7 is a structural view of the brace of the present invention.

Figure 8 is a schematic view of the present invention showing the erection of the timbering shelter.

Fig. 9 is a schematic view of the support dismantling vehicle of the present invention after dismantling the support frames from the tunnels.

Figure 10 is a schematic illustration of the transfer process of the support shelter of the present invention.

Fig. 11 is a top view of fig. 10.

Fig. 12 is a partial enlarged view at I in fig. 10.

Fig. 13 is a structural view of the supporting shed of the present invention.

Fig. 14 is a force analysis diagram of the supporting frame in the present invention when it is installed.

FIG. 15 is a force analysis diagram of the supporting shed of the present invention when the top beam is pressed.

FIG. 16 is a view showing the construction of the upper receiving boot of the present invention.

Fig. 17 is a front view of the support post of the present invention in a collapsed state.

Figure 18 is a right side view of the support post of the present invention in a collapsed condition.

Figure 19 is a rear view of the support post of the present invention in a collapsed condition.

Fig. 20 is a sectional view taken along line a-a of fig. 17.

Fig. 21 is a cross-sectional view taken along line B-B of fig. 17.

Fig. 22 is a cross-sectional view taken along line C-C of fig. 17.

Fig. 23 is a partial enlarged view at D in fig. 21.

Fig. 24 is a sectional view taken along line E-E of fig. 18.

Fig. 25 is a partial enlarged view at F in fig. 24.

Fig. 26 is a schematic view of the assembly of the detent pin and the detent pin guide lever of the present invention.

Figure 27 is a block diagram of the support post of the present invention after deployment.

Fig. 28 is an enlarged partial view of the bottom portion of fig. 17.

Fig. 29 is a partial enlarged view of the bottom portion of fig. 20.

FIG. 30 is a perspective view of the present invention after the attachment plate is secured to the foot body.

FIG. 31 is a schematic view of the construction of the large arm of the present invention.

FIG. 32 is a schematic view of the structure of the small arm of the present invention.

Reference numerals: 100. supporting a shed frame; 200. a bracket mounting vehicle; 300. a support dismantling vehicle; 1. a top beam; 2. a flexible pad; 3. a shoulder beam; 4. connecting upper boots; 401. a connecting portion; 402. connecting the upper part; 403. a barb; 5. an upper support leg; 501. a first through hole; 6. a lower leg; 601. a notch; 7. a first rotating shaft; 8. a second rotating shaft; 9. a ratchet bar; 10. a second return spring; 11. a pawl; 12. a housing; 13. a joystick; 1301. a chute; 14. a connecting rod; 15. a pin shaft; 16. a first stopper; 17. a first return spring; 18. a locking pin; 1801. a second through hole; 19. a locking pin guide lever; 20. a tension rod; 21. tensioning the spring; 22. a footing body; 2201. anti-skid nails; 23. a connecting disc; 24. a foot retracting slider; 2401. pushing the plate; 2402. a slider body; 25. a footing connecting rod; 26. a third rotating shaft; 27. a slide rail; 28. a third return spring; 29. A third return spring guide bar; 30. a first vehicle body; 31. a second vehicle body; 32. a first bracket; 33. a first slideway; 34. A first lead screw; 35. a first motor; 36. a first decelerator; 37. mounting an arm; 38. a first nut runner; 39. a second slideway; 40. a second nut block; 41. a second lead screw; 42. a connecting plate; 43. a first lift cylinder; 44. a second lift cylinder; 45. a top plate; 46. a support frame; 47. drilling a box; 48. a large arm; 4801. a first large arm; 4802. a second large arm; 4803. a large arm telescopic cylinder; 49. a small arm; 4901. a first small arm; 4902. a second small arm; 4903. a small arm telescopic cylinder; 50. a large arm tilt cylinder; 51. a small arm tilt cylinder; 52. supporting a hand; 5201. a mounting seat; 5202. a first support member; 5203. a second support member; 5204. a first pull rod; 5205. a second pull rod; 5206. adjusting a rod; 53. an inner supporting hole; 54. A fourth rotating shaft; 55. unlocking the cylinder; 56. an unlocking lever; 57. side walls of the roadway; 58. a second stopper; 59. a second driving device.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1 to 32, the present embodiment provides a roadway supporting apparatus including a supporting shed frame 100, a rack mounting vehicle 200, and a rack dismounting vehicle 300. The supporting shed frame 100 is detachably supported in the roadway; the rack-mounting vehicle 200 includes a first vehicle body 30 (which may be a heading machine) and a mounting assembly mounted on the first vehicle body 30 for supporting the supporting canopy frame in a roadway; the support dismantling vehicle 300 comprises a second vehicle body 31 and a dismantling assembly installed on the second vehicle body 31, wherein the dismantling assembly is used for dismantling the support shed frame 100 from a roadway and transferring the support shed frame to the support dismantling vehicle 200.

In this embodiment, the supporting shed frame includes a top beam 1, two shoulder beams 3, two supporting columns and two upper receiving shoes 4. The top beam 1 is suitable for abutting against the top of the roadway; the two shoulder beams 3 are respectively arranged at two ends of the top beam 1, and first ends of the shoulder beams 3 are hinged with the end part of the top beam 1 through a first rotating shaft 7; one end of each support column is hinged with the second end of each shoulder beam through a second rotating shaft 8, the two support columns are respectively connected with the two shoulder beams, the support columns can stretch, and the overall height of the supporting shed frame can be adjusted through the stretching of the support columns; the upper shoe 4 is also hinged with the second end of the shoulder beam 3 through a second rotating shaft 8, the upper shoe 4 is positioned on the outer side of the shoulder beam 3 and the supporting column, and the upper shoe 4 is suitable for abutting against the side wall of the roadway. The top beam 1, the shoulder beam 3 and the support column are always in the same plane, so that the axes of the first rotating shaft 7 and the second rotating shaft 8 are parallel to each other.

Referring to fig. 8, when in use, the top beam 1 is in contact with the top of the roadway and keeps a compacted state through the mounting assembly, the upper-connecting boots 4 are in contact with the side walls 57 of the roadway and keep the compacted state, the supporting columns are extended and connected to the bottom, and the integral supporting shed frame forms an approximately omega-shaped supporting state. When the supporting shed frame is in a supporting state, the shoulder beam and the top beam are in a trapezoidal posture, so that when the top beam is pressed, the pressure from the top can generate positive pressure component force to the upper shoe through the shoulder beam, the positive pressure component force can enable the upper shoe and the roadway side shoe to generate upward friction resistance, the friction resistance is positively related to the top pressure, the self-energizing effect is achieved, the pressure to the supporting column below is reduced, the requirement on the supporting force of the supporting column is lowered, and therefore the light and handy supporting column structure can be achieved, and the occupied volume is reduced.

According to the supporting state and the using process of the supporting shed frame 100, the stress analysis is carried out on the supporting shed frame, the stress analysis in the installation process is shown in fig. 14, an included angle between a supporting column and a roadway side wall 57 is set as alpha, and an included angle between a shoulder beam 3 and the roadway side wall 57 is set as beta.

In order to facilitate calculation, influence of the distribution position of the friction force of the roadway side wall 57 is ignored, the friction force of the roadway side wall 57 on the butt-joint upper shoe is translated to the hinge central point, and stress decomposition and synthesis are carried out according to the vertical direction and the horizontal direction.

Vertical component force of supporting force:

F₁₁＝F₁cos α, wherein F₁Is a branch ofSupporting force of the supporting column;

horizontal component force of supporting force:

F₁₂＝F₁·sinα

the counterforce of the shoulder beam is positive pressure on the side wall of the roadway:

F₁₁₂＝F₁₁·tgβ＝F₁·cosα·tgβ

the downward friction force of the tunnel side wall butt joint shoe during initial support:

F_μ1＝(F₁₂+F₁₁₂)·μ₁＝F₁(sinα+cosα·tgβ)μ₁

the primary supporting force of the supporting shed frame during primary supporting:

F_{first stage}＝F₁₁-F_μ1＝F₁·cosα-F₁(sinα+cosα·tgβ)μ₁

＝F₁(cosα-μ₁·sinα-μ₁·cosα·tgβ)

When the top beam is pressed, the stress analysis of the supporting shed frame is as shown in fig. 15, and at this time, half of the pressure of the top beam (the two sides of the supporting shed frame are symmetrically designed) is set as F₂Its supporting force F with the supporting shed frame₁₁The new balance is obtained under the action of friction force, and the friction force of the tunnel side wall butt joint upper shoe is upward and is set to be F_μ2At this time:

F₁₁＝F₂-F_μ2

at this time, F₂Acting force F on side wall of roadway by decomposing into shoulder beam₂₀Because the stress decomposition angles of the upper and lower hinge points of the shoulder beam are the same and the acting force and the reacting force are the same, the positive pressure F is exerted on the side wall of the roadway₂₁Comprises the following steps:

F₂₁＝F₂·tgβ

at this time, the supporting force F of the supporting shed frame₁The component force of the tunnel side wall butt joint upper shoe is the same as that of the initial support, but the tunnel side wall butt joint upper shoe has a downward movement trend due to the pressure of the top beam, the friction force of the tunnel side wall butt joint upper shoe is upward, and in order to better utilize the friction force of the tunnel side wall butt joint upper shoe, a barb structure can be arranged on the contact surface of the tunnel side wall butt joint upper shoe, so that the upward and downward friction coefficients of the barb structure are enabled to beIn contrast, as shown in FIG. 15, let the coefficient of friction be μ when it is downward₂Then, the friction force of the tunnel side wall butt joint upper shoe at this time is as follows:

F_μ2＝(F₁₂+F₂₁)·μ₂＝(F₁·sinα+F₂·tgβ)·μ₂

in addition, the first and second substrates are,

F₁₁＝F₂-F_μ2＝F₂-(F₁·sinα+F₂·tgβ)·μ₂

due to F₁₁＝F₁Cos α, i.e.

F₁·cosα＝F₂-(F₁·sinα+F₂·tgβ)·μ₂

Solving to obtain:

F₁＝F₂(1-μ₂·tgβ)/(cosα+μ₂·sinα)

as can be seen from the formula, the friction force between the upper receiving boot and the roadway side upper presses F along with the top plate 45₂Is increased, a self-energizing effect is produced, when beta and alpha take appropriate values, F₁Much less than F₂That is, when the supporting shed frame provides a small supporting force, a great working resistance can be obtained. For example, when β is 40 °, α is 3 °, μ₂When 1 (empirical value), F₁≈0.15F₂。

In some embodiments, the support canopy further comprises a flexible mat 2 provided on the top beam along the length of the top beam. The longitudinal section of the flexible cushion 2 is in an arch shape, and the thickness of the flexible cushion 2 is gradually reduced from the middle to two ends. The top of the supporting shed frame adopts a design and manufacturing mode of a flexible pad, so that when the top beam of the supporting shed frame is in a supporting state, the supporting load of the top beam is in arch distribution with relatively smaller two ends and relatively larger middle, and the supporting effect of the top beam on the roadway reaches the optimal state, so that the requirement on the initial supporting force of the supporting shed frame can be greatly reduced.

In specific implementation, the upper receiving boot 4 includes an upper receiving portion 402 and a connecting portion 401, the connecting portion 401 is hinged to the second end of the shoulder beam 3 through a second rotating shaft 8, a circular hole for the second rotating shaft 8 to pass through is formed in the connecting portion 401, and a barb 403 is formed on the upper receiving portion 402. When the supporting shed frame 100 is used, the barb 403 structure on the upper receiving part 402 is contacted with the roadway side wall 57, so that the friction coefficient of the downward sliding of the upper receiving shoe 4 is far greater than that of the upward sliding, and the self-energizing effect of the top beam 1 when the top beam is pressed is further enhanced.

The support column in this embodiment includes an upper leg 5, a lower leg 6 and a locking assembly. The inner part of the upper supporting leg is of a hollow structure, namely, a cavity for accommodating the lower supporting leg is formed in the upper supporting leg, and a ratchet bar 9 is arranged on the inner wall surface of the upper supporting leg; as a preferred embodiment, the ratchet bar 9 may be integrally formed with the upper leg. In addition, the ratchet bar 9 can be detachably connected with the upper leg, for example, the ratchet bar 9 can also be fixed with the inner wall of the upper leg by a connector such as a bolt. The lower support leg is slidably fitted in the upper support leg along the length direction of the upper support leg, and the lower support leg can be installed in a cavity of the upper support leg in an inserting manner during assembly.

The locking assembly is connected to the lower leg and includes a pawl 11, the pawl 11 being rotatable between an open position and a closed position. In the open position, the pawl 11 engages the ratchet 9 to lock the upper leg and the lower leg without relative sliding movement between the legs; in the closed position, the pawl 11 is separated from the ratchet bar 9, and the upper support leg and the lower support leg can slide relatively at the moment, so that the telescopic adjustment of the support column is realized.

The support column in this embodiment realizes controllable extension and retraction between the upper support leg and the lower support leg by means of the cooperation of the pawl 11 and the ratchet bar 9, and can achieve a stable support effect. The support column provided by the utility model can replace the traditional oil cylinder type support column, does not need to adopt a hydraulic oil cylinder for supporting, and avoids environmental pollution caused by oil leakage. Moreover, the mounting, dismounting and mounting process of the support column is simpler, manual connecting pipelines are not needed in comparison with a pressure oil cylinder support column, an auxiliary pump station is not needed, automation is easy to realize, and the support column has the advantages of light weight and easiness in carrying. In addition, when the support column is in a long-time support state, the support column does not have the support aging caused by leakage of hydraulic oil cylinder support columns, and therefore the support safety is improved.

The latch assembly further comprises a housing 12, an operating lever 13 and a connecting rod 14. The housing 12 is also disposed within the cavity of the upper leg, and one end of the housing 12 is connected to the upper end of the lower leg, such that the housing 12 and lower leg move in unison as the lower leg slides within the upper leg. One end of the operating lever 13 is located in the housing 12 and connected to the rear end of the connecting rod 14, and the operating lever 13 is slidable along the length of the housing 12 (which coincides with the length of the lower leg) to rotate the pawl 11 between the open and closed positions.

In specific implementation, a through hole for passing the operating lever 13 is formed in the top center of the housing 12, and the operating lever 13 is inserted into the through hole in the housing 12 and can slide in the through hole along the length direction of the lower leg. The cross-sectional shape of the operating lever 13 is designed to be non-circular (e.g., rectangular), and the shape of the through-hole of the housing 12 for passing the operating lever 13 therethrough is matched to the cross-sectional shape of the operating lever 13, thereby preventing the operating lever 13 from rotating about its axis. The connecting rod 14 is positioned in the shell 12, one end of the connecting rod 14 is hinged with the rod body of the operating rod 13, and the other end of the connecting rod 14 is hinged with the tail end of the pawl 11. The pawl 11 is at least partially located within the housing 12, and an end of the pawl 11 remote from the connecting rod 14 is adapted to engage with the ratchet bar 9. The pawl 11 is pivotally connected with the housing 12 in a rotatable manner, in the specific implementation, a pin hole penetrating through two side surfaces of the pawl 11 can be formed in the pawl 11, a pin shaft 15 is inserted into the pin hole in the pawl 11, two ends of the pin shaft 15 are fixed with the housing 12, and the pawl 11 can rotate around the pin shaft 15 under the pulling action of the connecting rod 14, so that the engagement and the separation between one end of the pawl 11, which is far away from the connecting rod 14, and the ratchet bar 9 are realized.

Referring to fig. 25, the two ratchets 9, the two pawls 11 and the two connecting rods 14 are all in one-to-one correspondence, the two ratchets 9 are oppositely arranged on the inner wall surface of the upper leg, when the two ratchets 9 are in the open position, the tail parts of the two pawls 11 are pressed against each other, and the two ratchets 9, the two pawls 11 and the two connecting rods 14 are symmetrically distributed on two sides of the operating rod 13. Two pawls 11 are connected with control rod 13 through two connecting rods 14 to realize that two pawls 11 open and shut in step, can guarantee through the manipulation to control rod 13 that two pawls 11 are in the locking or state of opening simultaneously, make two pawls 11 and two ratchet bars 9 atress simultaneously when the support column is worked, and its overall structure can play a balanced effect to the atress of two pawls 11 and two ratchet bars 9, thereby reduce the intensity requirement of pawl 11 and ratchet bar 9, and improve the stability and the security that the support column supported.

In some embodiments, the locking assembly further includes a first stop member 16 and a first return spring 17, and one end of the operating rod 13 extends to the outside of the housing 12 and is fixedly connected to the first stop member 16. The first return spring 17 is a compression spring, the first return spring 17 is sleeved on the outer side of the operating lever 13 between the first stop member 16 and the housing 12, one end of the first return spring 17 abuts against the outer wall surface of the housing 12, and the other end abuts against the first stop member 16.

When in use, the operating rod 13 can be operated to move up and down through the first stop member 16, so that the pawl 11 is meshed with and separated from the ratchet rack 9, and the specific principle is as follows: the operating rod 13 moves downwards by pressing the first stop piece 16, the first return spring 17 is compressed, the connecting rod 14 connected to the bottom of the operating rod 13 pushes the pawl 11 to rotate, one end of the pawl 11 close to the ratchet rack 9 rotates towards the operating rod 13, and simultaneously, the shell 12 and the lower leg have a downward movement tendency, so that the pawl 11 and the ratchet rack 9 can be easily separated, and finally, the pawl 11 moves to a closed position, and at the moment, the upper leg and the lower leg can relatively slide to realize the extension or shortening of the support column; after the supporting column is lengthened or shortened to a required length, the pressing force applied to the first stop member 16 is removed, then under the elastic force of the first return spring 17, the operating rod 13 slides upwards, the connecting rod 14 connected to the bottom of the operating rod 13 drives the pawl 11 to rotate, finally, one end of the pawl 11 far away from the connecting rod 14 is clamped between teeth of the ratchet rack 9, meanwhile, one ends of the two pawls 11 are in contact with each other, at the moment, the upper supporting leg and the lower supporting leg are locked with each other, and the supporting column cannot stretch and retract.

In some embodiments, the locking assembly further includes a locking pin 18, the locking pin 18 is connected to the operating rod 13 and penetrates through the housing 12 along a thickness direction (a left-right direction indicated by an arrow G in fig. 22) of the housing 12, the locking pin 18 is slidable along the thickness direction of the housing 12, the upper end of the upper leg is provided with a first through hole 501, and the locking pin 18 can be inserted into the first through hole 501 to relatively fix the lower leg of the upper leg. The locking pin 18 is provided with a second through hole 1801 opened along a radial direction thereof, the operating lever 13 penetrates through the second through hole 1801, and in order to ensure that the locking pin 18 can slide along a thickness direction of the housing 12, a dimension of the second through hole 1801 in a length direction of the locking pin 18 is larger than a dimension of the operating lever 13 in the length direction of the locking pin 18 (the same as a left-right direction indicated by an arrow G in fig. 22).

The locking assembly further comprises a locking pin guide rod 19, and a sliding groove 1301 is formed in the side wall of the operating rod 13 along the length direction of the operating rod 13. The locking pin guide rod 19 is fixedly connected with the locking pin 18, two opposite side surfaces of the locking pin 18 can be respectively provided with a guide rod installation hole penetrating through the second through hole 1801 during assembly, and the two locking pin guide rods 19 are installed in the corresponding guide rod installation holes in an interference fit manner. One end of the locking pin guide rod 19 is slidably fitted in the sliding groove 1301, as shown in fig. 23, an inclined surface inclined to the cross section of the operating rod 13 is arranged in the sliding groove 1301, when one end of the locking pin 18 is inserted into the first through hole 501 on the upper leg, the first stop member 16 is pressed to slide the operating rod 13 downwards, the inclined surface in the sliding groove 1301 is in contact with the locking pin guide rod 19 in the process, the locking pin 18 moves towards the direction away from the first through hole 501 under the interaction of the locking pin guide rod 19 and the inclined surface of the sliding groove 1301, and the locking pin 18 gradually separates from the first through hole 501, so that the locking pin 18 is unlocked and slid. The locking subassembly still includes second reset spring 10, second reset spring 10 cover is established in the outside of locking round pin 18, the week side of locking round pin 18 is equipped with the annular arch, the one end and the protruding counterbalance of annular of second reset spring 10 link to each other, the other end with the inner wall of casing 12 offsets. When the support column is contracted to the shortest state, the locking pin 18 automatically enters the first through hole 501 under the action of the elastic force of the second return spring 10, so that the upper and lower support legs are in a locking state, and the support column is more convenient to use through the arranged second return spring 10.

Two pawl back to back installations in the locking subassembly, when the pawl in the locking subassembly was in the locking state with the ratchet, the pawl afterbody compresses tightly each other, and the torque that the effort produced of ratchet to the pawl head was offset each other by the effort and the reaction of pawl afterbody this moment, forms the internal force, has just so avoided the pawl to produce the normal pressure to the ratchet to the requirement of leg on structural strength has been reduced, made whole locking pretension support column lightweight, the simplification.

The support column according to the embodiment of the utility model is further provided with a tensioning assembly consisting of a tensioning rod 20 and a tensioning spring 21, one end of the tensioning rod 20 is connected with the shell 12, the other end of the tensioning rod is connected with the upper end of the lower support leg, the tensioning spring 21 is sleeved on the outer side of the tensioning rod 20, one end of the tensioning spring 21 abuts against the shell 12, and the other end of the tensioning spring abuts against the lower support leg. When the supporting column works, the tensioning assembly can play a role in pre-tensioning and anti-loosening, and the stroke position of the supporting column has a certain buffering distance, so that the discrete locking characteristic of the pawl 11 and the ratchet bar 9 is adapted.

In some embodiments, the supporting shed frame further comprises a foot component rotatably connected with the lower end of the lower supporting leg, the foot can rotate to the state shown in fig. 19 when the supporting column is changed from the contraction state to the expansion state, the contact surface is increased through the foot component, the contact surface is prevented from being crushed, and meanwhile, a better supporting effect is achieved.

Referring to fig. 28 and 29, the foot assembly includes a foot body 22, a connecting plate 23, a foot-retracting slider 24 and a foot link 25. The connecting disc 23 is fixedly connected with the bottom foot body 22, and the connecting disc 23 is hinged with the lower end of the lower supporting leg through a third rotating shaft 26. The side of the foot body 22 facing away from the connecting disc 23 can be designed to be a cambered surface or a spherical surface, and the surface is provided with the anti-skid nails 2201 to improve the contact performance and achieve the anti-skid effect. The lower leg is provided with a slide rail 27, the foot-receiving slide block 24 is slidably arranged in the slide rail 27, and at least part of the foot-receiving slide block 24 is positioned at the outer side of the lower leg, so that the upper leg can be in contact with the foot-receiving slide block 24. One end of the foot connecting rod 25 is hinged with the connecting disc 23 through a fourth rotating shaft 54, and the other end of the foot connecting rod is hinged with the foot retracting sliding block 24. Because the foot connecting rod 25 and the lower leg are respectively hinged with different parts of the connecting disc 23, when the foot-closing sliding block 24 slides in the sliding rail 27, the foot connecting rod 25 can drive the foot body 22 to rotate.

Further, the foot-retracting slider 24 is composed of a slider body 2402 and a push plate 2401 which are connected, the slide rail 27 is arranged in the lower leg, the slider body 2402 is slidably arranged in the slide rail 27, the push plate 2401 is positioned at the outer side of the lower leg, a notch 601 communicated with the slide rail 27 is formed in the side surface of the bottom of the lower leg, and the push plate 2401 penetrates through the notch 601 to be fixed with the slider body 2402 in the slide rail 27. When the upper support leg and the lower support leg slide relatively, the upper support leg can push the push plate 2401 to move, and further drive the slider body 2402 to slide in the slide rail 27.

In this embodiment, the foot assembly further includes a third return spring 28, a third return spring guide rod 29 and a second stop member 58, one end of the third return spring guide rod 29 penetrates through one end of the slide rail 27 along the length direction of the slide rail 27 and is connected with the foot closing slider 24, and the other end of the third return spring guide rod 29 is connected with the second stop member 58. The third return spring 28 may have two mounting manners, wherein one mounting manner is that the third return spring 28 is sleeved on the third return spring guide rod 29, and one end of the third return spring 28 abuts against the second stop member 58, and the other end abuts against one end of the slide rail 27. Another way of mounting the third return springs 28 is that the third return springs 28 are mounted on one side of a third return spring guide bar 29, and as shown in fig. 28, one third return spring 28 is disposed on each of both sides of the third return spring guide bar 29, an upper end of each third return spring 28 contacts with the second stopper 58, and a lower end of each third return spring 28 contacts with an upper end of the slide rail 27.

When the supporting column is shortened to the shortest state, the bottom of the upper supporting leg is contacted with the push plate 2401 and pushes the push plate 2401 to slide downwards for a certain distance, the sliding block connected with the push plate 2401 also slides downwards for a certain distance, the third return spring 28 is compressed under the action of the second stop piece, the foot-receiving sliding block 24, the foot connecting rod 25 and the connecting disc 23 are sequentially linked, so that the connecting disc 23 rotates around the third rotating shaft 26, and finally the foot body 22 is folded to the state shown in fig. 29. When the supporting column extends, the lower end of the lower leg is separated from the push plate 2401, the second stop member is pushed to move upwards by the elastic force of the third return spring 28, the slider connected with the second stop member through the third return spring guide rod 29 slides upwards, and the connecting disc 23 is pulled by the foot link 25 to rotate around the third rotating shaft 26, so that the foot body 22 rotates to the unfolded state (see fig. 27). When supporting the rack when using, footing body 22 is in the state of expanding, can guarantee from this that to have great area of contact between landing leg and the tunnel down, prevents that the contact surface from being crushed, provides better support effect.

The utility model provides a strut shed frame structural design is light and handy, and easily installation and dismouting can effectual improvement rectangle tunnel strut efficiency, can realize automatic installation and dismouting simultaneously to ensure that the staff is healthy, reduce the risk that the staff suffers from the occupational disease, reduce the number of dying because of the occupational disease.

Referring to fig. 2 and 3, the mounting assembly includes a first bracket 32, a first slideway 33, a first nut runner 38, a first lead screw 34, a first drive device and a mounting arm 37. The first supports 32 are two parallel to each other and are respectively installed on two sides of the first vehicle body in the width direction, the bottom of the first support 32 is fixedly connected with the first vehicle body, and the first support 32 is mainly used as an installation carrier of a first slide way 33; a first slide way 33 is mounted at the top of each first bracket 32, and the first slide way 33 extends along the length direction of the first vehicle body, namely the length direction of the first slide way 33 is consistent with the traveling direction of the first vehicle body; the first nut sliding block 38 is slidably arranged in the first slide way 33, a part of the first nut sliding block 38 is positioned outside the first slide way 33, and the part of the first nut sliding block 38 positioned outside the first slide way 33 is used for pushing the supporting shed frame to move; the first lead screw 34 is rotatably arranged in the first slideway 33 along the length direction of the first slideway 33, in order to realize rotatable connection between the first lead screw 34 and the first slideway 33 in specific implementation, two ends of the first lead screw 34 can be fixed with the first slideway 33 through a bearing seat, and the first lead screw 34 is in threaded fit with the first nut slider 38; the first driving device is arranged at one end of the first slideway 33 and is in transmission connection with the first lead screw 34, and the first driving device is used for driving the first lead screw 34 to rotate and driving the first nut sliding block 38 to slide along the first slideway 33; the mounting arms 37 of the mounting assembly may be releasably connected to the support frame, the mounting arms 37 of the mounting assembly being used to support the support frame in the roadway.

The first driving device is composed of a first motor 35 and a first speed reducer 36, and the first motor 35 is in transmission connection with one end of the first lead screw 34 through the first speed reducer 36. When the device is used, the first driving device drives the first lead screw 34 to rotate, the rotating first lead screw 34 drives the first nut sliding blocks 38 to move back and forth, the first nut sliding blocks 38 on the two first slide ways 33 move synchronously, and the supporting shed frame placed above the first slide ways 33 can be pushed to move. In order to prevent the coal cinder from falling into the first slideway 33, the opening of the first slideway 33 faces downward or towards either of the left and right sides, and the first nut runner 38 still needs to have a part extending above the first slideway 33.

Referring to fig. 5, the detaching assembly includes a second bracket, a second slide 39, a second nut runner 40, a second lead screw 41, a second driving device 59, and a mounting arm 37. The second bracket is connected with the second vehicle body, and the height of the second bracket can be adjusted in a lifting way; the second slide way 39 is fixed to the top of the second bracket, and the second slide way 39 extends along the length direction of the second vehicle body, that is, the length direction of the second slide way 39 coincides with the traveling direction of the second vehicle body in fig. 5. The number of the second slide ways 39 is two, and the two second slide ways 39 are arranged at intervals along the width direction of the second vehicle body; the second nut runner 40 is mounted in the second slideway 39 and can slide along the second slideway 39, and a part of the second nut runner 40 is positioned outside the second slideway 39; the second lead screw 41 is rotatably installed in the second slideway 39 along the length direction of the second slideway 39, and the second lead screw 41 is in threaded fit with the second nut slider 40; the second driving device is installed at one end of the second slideway 39 and is in transmission connection with the second lead screw 41, and the second lead screw 41 is driven to rotate by the second driving device and drives the second nut slider 40 to slide along the second slideway 39. In order to prevent the coal cinder from falling into the second slideway 39, the opening of the second slideway 39 faces downward or towards either side of the left and right sides, and the second nut slider 40 still needs to have a part extending above the second slideway 39. The mounting arms 37 of the stripper assembly are also releasably connectable to the support frame, the mounting arms 37 of the stripper assembly being used to remove the support frame from the roadway. The second driving device 59 includes a second motor and a second speed reducer, and the structure of the second driving device is the same as that of the first driving device, and the second motor is in transmission connection with one end of the second lead screw 41 through the second speed reducer.

Referring to fig. 6, the mounting arm 37 in the mounting assembly and the dismounting assembly is composed of a large arm 48, a small arm 49, a large arm tilt cylinder 50 and a small arm tilt cylinder 51. The large arm 48 is telescopic, and a first end of the large arm 48 is hinged with the first vehicle body or the second vehicle body. The small arm 49 is telescopic, the first end of the small arm 49 is hinged with the second end of the big arm 48, two supporting handles 52 are arranged on the small arm 49, and the supporting handles 52 are suitable for being detachably connected with the supporting shed frame. The first end of the large arm tilting cylinder 50 is hinged with the first vehicle body or the second vehicle body, and the second end of the large arm 48 tilting cylinder is hinged with the large arm 48. The first end of the small arm 49 tilting oil cylinder is hinged with the large arm 48, and the second end of the small arm 49 tilting oil cylinder is hinged with the small arm 49.

In this embodiment, the mounting arm 37 further comprises a large arm 48 telescopic cylinder and a small arm 49 telescopic cylinder. The large arm 48 comprises a first large arm 4801 and a second large arm 4802, the first large arm 4801 is slidably sleeved in the second large arm 4802, the large arm 48 telescopic cylinder is arranged in the large arm 48, a first end of the large arm 48 telescopic cylinder is connected with the first large arm 4801, a second end of the large arm 48 telescopic cylinder is connected with the second large arm 4802, and the expansion and contraction of the large arm 48 are controlled by the expansion and contraction of a large arm telescopic rod 4803; the small arm 49 comprises a first small arm 4901 and a second small arm 4902, the first small arm 4901 can be slidably sleeved in the second small arm 4902, the small arm 49 telescopic cylinder is arranged in the small arm 49, the first end of the small arm 49 telescopic cylinder is connected with the first small arm 4901, the second end of the small arm 49 telescopic cylinder is connected with the second small arm 4902, and the expansion and contraction of the small arm 49 are controlled through the expansion and contraction of the small arm telescopic bar 4903.

Referring to fig. 7, the supporting arm 52 is composed of a mounting base 5201, a first supporting piece 5202, a second supporting piece 5203, a first lever 5204, a second lever 5205 and an adjusting lever 5206. The mounting seat is fixedly connected with the small arm; the first end of the first support 5202 and the first end of the second support 5203 are both hinged to the mounting base 5201; the first end of the first pull rod 5204 is hinged to the second end of the first support 5202, and the first end of the second pull rod is hinged to the second end of the second support 5203; one end of the adjusting rod 5206 is hinged to the second end of the first pull rod 5204 and the second end of the second pull rod, respectively, and the adjusting rod 5206 penetrates through the mounting base 5201 and is movable along the length direction of the mounting base 5201. The inner side surfaces of the upper supporting leg and the lower supporting leg of the supporting shed frame are respectively provided with an inner supporting hole 53, the first supporting piece 5202 and the second supporting piece 5203 on the supporting arm 52 can be inserted into the inner supporting hole 53 of the supporting shed frame, the adjusting rod 5206 extends out to drive the first supporting piece 5202 and the second supporting piece 5203 to be supported outwards, one supporting arm 52 on the small arm 49 is used for supporting and grabbing the upper supporting leg, and the other supporting arm 52 on the small arm 49 is used for supporting and grabbing the lower supporting leg.

In some embodiments, the mounting arm 37 further includes an unlocking assembly including an unlocking cylinder 55 disposed on an outer wall of the small arm 49 along a length of the small arm 49 and an unlocking lever 56 having one end connected to the small arm 49 and the other end connected to the unlocking lever 56.

The process of installing the supporting shed frame by the installation component comprises the following steps: firstly, through the coordination operation of a large-arm inclined cylinder 50 and a small-arm inclined cylinder 51, each supporting arm 52 in a mounting assembly extends into an inner supporting hole 53 of an upper supporting leg or a lower supporting leg (at the moment, the upper supporting leg and the lower supporting leg are in a contraction state), so that the support shed frame is grabbed, then the mounting arm 37 transfers the support shed frame to a position to be mounted, then an unlocking rod 56 is inserted into a first stop piece 16 of the support shed frame, the unlocking rod 56 presses the first stop piece 16 through the contraction of the unlocking cylinder 55, so that a pawl 11 of a locking assembly is in an open position, then a small-arm telescopic rod 4903 extends, so that the upper supporting leg and the lower supporting leg are gradually unfolded, finally a top beam is contacted with the top of a roadway side, and the side boots on the two sides of the support shed frame are contacted with the side walls of the roadway; after the upper and lower legs are unfolded, the bottom body 22 is rotated to the state shown in fig. 27, and the bottom surface of the bottom body 22 is in contact with the roadway floor; finally, the unlocking cylinder 55 extends, the pressing force on the first stop piece 16 is removed, the pawl 11 is meshed with the ratchet rack 9 under the action of the first return spring 17, the upper supporting leg and the lower supporting leg are locked with each other, and then the supporting hand 52 is removed from the inner supporting hole 53, so that the whole mounting operation process of the supporting shed frame is completed. The process of disassembling the supporting shed frame by the disassembling component is opposite to the installation process, so the description is not repeated.

Referring to fig. 5, the second bracket includes a connection plate 42, two first lift cylinders 43, and two second lift cylinders 44. One end of the connecting plate 42 is hinged with the second vehicle body, and the other end of the connecting plate 42 is hinged with the second slideway 39; one end of each first lift cylinder 43 is hinged with the second vehicle body, and the other end of each first lift cylinder 43 is hinged with the first end of the second slideway 39; one end of each second lift cylinder 44 is hinged to the second vehicle body, and the other end of each second lift cylinder 44 is hinged to the second end of the second slide way 39. The second support can be lifted and lowered under the adjustment of the first lift cylinder 43 and the second lift cylinder 44.

In some embodiments, the rack-dismounting vehicle further comprises a drill stand, which is rotatably provided on the second vehicle body. The drill frame is used for providing a guiding effect for a drill rod or an anchor rod, the anchor rod support is generally used for drilling a hole firstly and then carrying out anchor rod support in the hole, and anchor rod support operation at different angles can be realized through the rotatable arrangement. In specific implementation, the drill frame consists of a support frame 46, a top plate 45 and a drill box 47; the two support frames are respectively fixed on two sides of the second vehicle body; a positioning hole is formed in the top plate 45, the top plate 45 is connected with the upper end of the support frame 46, and the top plate 45 can move along the length direction of the support frame 46; during supporting, the top plate 45 is jacked to the wall surface of the roadway; the drill box 47 is connected to the lower end of the support frame 46, and the drill box 47 is used for connecting a drill rod or a rock bolt. In this embodiment the mounting arm 37 of the dismounting assembly may be fixed to one side of the drilling rig.

The functions and implementation steps of the devices are as follows:

firstly, along with the tunneling of the first vehicle body, the support shed frames carried on the support mounting vehicle are rapidly mounted in the roadway one by one at a certain spacing distance, so that the supporting effect is achieved, the supporting along with the tunneling is realized, the automatic supporting of the working face is realized through simple automatic control, and the unmanned operation is further realized.

Secondly, after the supporting shed frames arranged on the support mounting vehicle are used up, the first vehicle body is shut down, ventilation and dust fall are carried out on a working face, anchor rod supporting is carried out on drill frames on the support dismounting vehicle following the working face, the dismounting assemblies can dismount and mount the adjacent unfolded supporting shed frames after anchor rod supporting is finished, the dismounted retractable supporting shed frames are placed on a second slide way 39 of the support dismounting vehicle, a second nut slide block 40 on the support dismounting vehicle pushes the supporting shed frames forward to move one supporting shed frame body and retreat to the original position, and the position is reserved for the next retracted supporting shed frame. And (4) assembling and disassembling a supporting shed frame every time one row of anchor rods are supported, and repeating the steps.

And thirdly, after the support dismantling vehicle is fully loaded or a certain number of support shed frames are dismantled, the second vehicle body walks to the position right behind the first vehicle body, the second slide way 39 is adjusted to a proper height through the two first lifting oil cylinders 43 and the two second lifting oil cylinders 44, the support shed frames on the second slide way 39 are pushed forwards by the second nut slide block 40 and are unloaded onto the first slide way 33 of the support dismantling vehicle, then the support shed frames are pushed forwards to proper positions by the first nut slide block 38 and are returned to the original positions, and the process is repeated until the support dismantling vehicle is fully loaded or the support shed frames are dismantled to proper positions.

Fourthly, the step one can be repeated after the mounting assembly on the bracket mounting vehicle is filled or a certain number of supporting shed frames are mounted. The method is repeated, so that working of workers in an extremely severe working environment when the tunneling machine set works is avoided, occupational diseases are fundamentally avoided, and automatic efficient tunneling and unmanned safe construction of tunneling on a tunneling working face are achieved.

The utility model also has the following advantages:

1. by applying the roadway supporting device disclosed by the utility model, the supporting working efficiency during tunneling can be greatly improved, the problem of unmatched excavation and supporting working progress in roadway tunneling is thoroughly solved, and the roadway tunneling efficiency is greatly improved.

2. By applying the roadway supporting device disclosed by the utility model, the supporting can be carried out along with excavation, the empty roof distance (the supporting distance is not arranged in the excavation section) is effectively shortened, the occurrence of roadway disasters such as roof collapse and the like is reduced to the greatest extent, and the potential safety hazard is greatly reduced.

3. The roadway supporting device provided by the utility model supports not only the top of the roadway, but also the side wall of the roadway, and avoids wall caving to the maximum extent and possible accidents caused by the wall caving.

4. The supporting shed frame is ingenious in design, can generate self-energizing working resistance when the top is pressed, reduces the requirement of the supporting shed frame on the working resistance, is simple and light in structure, occupies small space, and is efficient in utilization of the space of a mine roadway.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A roadway support apparatus, comprising:

the supporting shed frame is detachably supported in the roadway;

the support mounting vehicle comprises a first vehicle body and a mounting assembly arranged on the first vehicle body, wherein the mounting assembly is used for supporting the supporting shed frame in a roadway;

the support disassembly vehicle, the support disassembly vehicle includes the second automobile body and establishes the last dismantlement subassembly of second automobile body, the dismantlement subassembly be used for with strut the rack and dismantle from the tunnel and transfer to on the support mounting vehicle.

2. The roadway support apparatus of claim 1, wherein the support canopy frame includes:

the top beam is suitable for abutting against the top of the roadway;

the first ends of the shoulder beams are rotatably connected with one end of the top beam, and the two shoulder beams are respectively connected with the two ends of the top beam;

the two support columns are rotatably connected with the second ends of the shoulder beams, the two support columns are respectively connected with the two shoulder beams, the support columns can stretch and retract, each support column comprises an upper support leg, a lower support leg and a locking assembly, the upper support leg is rotatably connected with the second ends of the shoulder beams, a ratchet bar is arranged on the inner wall surface of the upper support leg, the lower support leg is slidably matched in the upper support leg along the length direction of the upper support leg, the locking assembly is connected with the lower support leg, the locking assembly comprises a pawl, the pawl can rotate between an opening position and a closing position, in the opening position, the pawl is meshed with the ratchet bar to lock the upper support leg and the lower support leg, and in the closing position, the pawl is separated from the ratchet bar;

the upper connecting boots are rotatably connected with the second ends of the shoulder beams, the upper connecting boots are positioned on the outer sides of the shoulder beams and the supporting columns, the upper connecting boots are suitable for abutting against the side walls of the roadway, each upper connecting boot comprises an upper connecting portion and a connecting portion, the connecting portion is rotatably pivoted with the second ends of the shoulder beams, and barbs are arranged on the upper connecting portions.

3. The roadway support apparatus of claim 2, wherein the support canopy frame further comprises a flexible mat, the flexible mat is arranged on the top beam along the length direction of the top beam, the longitudinal section of the flexible mat is arched, and the thickness of the flexible mat is gradually reduced from the middle to the two ends.

4. The roadway support apparatus of claim 3, wherein the locking assembly further comprises:

the shell is connected with the upper end of the lower supporting leg, at least part of the pawl is positioned in the shell, and the pawl is rotatably pivoted with the shell;

the connecting rod is positioned in the shell, and one end of the connecting rod is connected with the tail end of the pawl;

one end of the operating rod is positioned in the shell, the other end of the connecting rod is connected with the operating rod, the operating rod can slide along the length direction of the shell to drive the ratchet bars to rotate between the opening position and the closing position, the ratchet bars, the pawls and the connecting rod are all two and in one-to-one correspondence, the two ratchet bars are oppositely arranged on the inner wall surface of the upper supporting leg, and the tail parts of the two pawls are mutually pressed at the opening position;

the other end of the operating rod is positioned outside the shell and connected with the first stop piece, the first return spring is sleeved outside the operating rod, one end of the first return spring abuts against the outer wall surface of the shell, and the other end of the first return spring abuts against the first stop piece;

the locking pin is connected with the operating rod and penetrates through the shell along the thickness direction of the shell, the locking pin can slide along the thickness direction of the shell, a first through hole is formed in the lower end of the upper supporting leg, the locking pin is suitable for being matched in the first through hole so that the upper supporting leg and the lower supporting leg are relatively fixed, a second through hole formed along the radial direction of the locking pin is formed in the locking pin, the operating rod penetrates through the second through hole, and the size of the second through hole in the length direction of the locking pin is larger than that of the operating rod in the length direction of the locking pin;

the side wall of the operating rod is provided with a sliding groove along the length direction of the operating rod, the locking pin guide rod is connected with the locking pin, and one end of the locking pin guide rod is slidably matched in the sliding groove;

the second reset spring, the second reset spring cover is established the outside of locking round pin, the week side of locking round pin is equipped with the annular arch, second reset spring's one end with the annular arch offsets continuously, the other end with the inner wall of casing offsets.

5. The roadway support apparatus of claim 2, wherein the support canopy frame further includes a foot assembly rotatably connected to the lower end of the lower leg, the foot assembly including:

a footing body;

the connecting disc is connected with the bottom foot body and is rotatably connected with the lower end of the lower supporting leg;

the foot closing sliding block is arranged on the lower supporting leg and can be arranged in the sliding rail in a sliding manner, and at least part of the foot closing sliding block is positioned on the outer side of the lower supporting leg, so that the upper supporting leg can be in contact with the foot closing sliding block;

the bottom foot connecting rod is rotatably connected with the connecting disc at one end and rotatably connected with the foot folding sliding block at the other end, the bottom foot connecting rod and the lower support leg are respectively rotatably connected with different parts of the connecting disc, and the bottom foot connecting rod can drive the bottom foot body to rotate;

the sliding block body and the push plate are connected, the sliding rail is arranged in the lower supporting leg, the sliding block body is arranged in the sliding rail in a sliding mode, and the push plate is located on the outer side of the lower supporting leg;

the sliding rail comprises a third reset spring, a third reset spring guide rod and a second stop part, wherein one end of the third reset spring guide rod is arranged along the length direction of the sliding rail and penetrates through one end of the sliding rail and is connected with the sliding block, the other end of the third reset spring guide rod is connected with the second stop part, the third reset spring is sleeved on the third reset spring guide rod, one end of the third reset spring is abutted against the second stop part, and the other end of the third reset spring is abutted against one end of the sliding rail.

6. The roadway support apparatus of claim 1, wherein the mounting assembly comprises:

the first supports are two and are respectively arranged on two sides of the first vehicle body in the width direction;

a first slide track connected to the first support and extending along a length of the first vehicle body;

the first nut sliding block is slidably arranged in the first slide way, and at least part of the first nut sliding block is positioned on the outer side of the first slide way;

the first lead screw is rotatably arranged in the first slide way along the length direction of the first slide way and is in threaded fit with the first nut slide block;

the first driving device is arranged at one end of the first slide way and connected with the first lead screw, and the first driving device is used for driving the first lead screw to rotate and driving the first nut slide block to slide along the first slide way;

the mounting arm, the mounting arm with it links to each other to strut the rack detachably, the mounting arm be used for with strut the rack and strut in the tunnel.

7. The roadway support apparatus of claim 1, wherein the disassembly assembly comprises:

the second bracket is connected with the second vehicle body in a lifting manner;

the two second slide ways are connected with the second support and extend along the length direction of the second vehicle body, and the two second slide ways are arranged at intervals along the width direction of the second vehicle body;

the second nut sliding block is slidably arranged in the second slideway, and at least part of the second nut sliding block is positioned on the outer side of the second slideway;

the second screw rod is rotatably arranged in the second slide way along the length direction of the second slide way and is in threaded fit with the second nut slide block;

the second driving device is arranged at one end of the second slide way and connected with the second lead screw, and the second driving device is used for driving the second lead screw to rotate and driving the second nut slide block to slide along the second slide way;

the mounting arm is detachably connected with the supporting shed frame and is used for dismounting the supporting shed frame from the roadway;

the second bracket includes:

one end of the connecting plate is rotatably connected with the second vehicle body, and the other end of the connecting plate is rotatably connected with the second slide way;

one end of the first lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the first lifting oil cylinder is rotatably connected with the first end of the second slideway;

and one end of the second lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the second lifting oil cylinder is rotatably connected with the second end of the second slideway.

8. The roadway support apparatus of claim 6 or 7, wherein the mounting arm comprises:

the large arm can stretch out and draw back, and the first end of the large arm is rotatably connected with the first vehicle body or the second vehicle body;

the small arm is telescopic, the first end of the small arm is rotatably connected with the second end of the large arm, at least two supporting hands are arranged on the small arm, and the supporting hands are suitable for being detachably connected with the supporting shed frame;

a large arm tilt cylinder, a first end of the large arm tilt cylinder being rotatably connected to the first vehicle body or the second vehicle body, a second end of the large arm tilt cylinder being rotatably connected to the large arm;

the first end of the small arm tilting oil cylinder is rotatably connected with the large arm, and the second end of the small arm tilting oil cylinder is rotatably connected with the small arm;

the large arm telescopic cylinder comprises a first large arm and a second large arm, the first large arm is slidably arranged in the second large arm, the large arm telescopic cylinder is arranged in the large arm, the first end of the large arm telescopic cylinder is connected with the first large arm, and the second end of the large arm telescopic cylinder is connected with the second large arm;

the small arm telescopic cylinder comprises a first small arm and a second small arm, the first small arm is slidably arranged in the second small arm, the small arm telescopic cylinder is arranged in the small arm, the first end of the small arm telescopic cylinder is connected with the first small arm, and the second end of the small arm telescopic cylinder is connected with the second small arm;

the unlocking assembly comprises an unlocking cylinder and an unlocking rod, the unlocking cylinder is arranged on the outer wall of the small arm along the length direction of the small arm, one end of the unlocking cylinder is connected with the small arm, and the other end of the unlocking cylinder is connected with the unlocking rod.

9. The roadway support apparatus of claim 8, wherein the brace includes:

the mounting seat is fixedly connected with the small arm;

the first end of the first supporting piece and the first end of the second supporting piece are both rotatably connected with the mounting seat;

a first pull rod and a second pull rod, wherein the first end of the first pull rod is rotatably connected with the second end of the first supporting piece, the first end of the second pull rod is rotatably connected with the second end of the second supporting piece,

one end of the adjusting rod is rotatably connected with the second end of the first pull rod and the second end of the second pull rod respectively, and the adjusting rod penetrates through the mounting seat and can move along the length direction of the mounting seat.

10. The roadway support apparatus of claim 1, wherein the rack-dismantling truck further comprises a drill stand rotatably provided on the second vehicle body; the drill frame comprises a support frame, a top plate and a drill box, wherein a positioning hole is formed in the top plate, the top plate is connected with the upper end of the support frame, and the top plate can move along the length direction of the support frame; the drill box is connected with the lower end of the support frame and is used for connecting a drill rod or an anchor rod.