Large-dip-angle irregular coal seam roadway surrounding rock reinforcing and supporting device

Abstract

The utility model belongs to the technical field of roadway supporting, and particularly relates to a large-dip-angle irregular coal seam roadway surrounding rock reinforcing and supporting device which comprises a reinforcing mesh making contact with the surface of a roadway, the inner surface of the reinforcing mesh makes contact with a steel belt, anchor rods and anchor cables are arranged in the steel belt and penetrate through the steel belt, and the anchor rods and the anchor cables are connected with the reinforcing mesh. The anchor rods and the anchor cables penetrate through the reinforcing mesh and are inserted into the roadway. The combination of the threaded column and the adjusting sleeve is arranged to replace an original timber pile, the cushion block with the wedge nail is arranged at the bottom of the threaded column, the movable attaching block is arranged at the top of the adjusting sleeve and used for being attached to an irregular roadway, and therefore the adjustable roadway supporting device can be suitable for different roadways through threaded adjustment between the threaded column and the adjusting sleeve.

Description

TECHNICAL FIELD

[0001] The scheme belongs to the field of roadway support, and particularly relates to a surrounding rock reinforcing support device for a large-inclination irregular coal seam roadway. BACKGROUND

[0002] The roadway support technologies of coal mines at home and abroad mainly include stone arch, concrete arch, truss, anchor rod, anchor cable, anchor injection, I-beam, U-shaped steel retractable support and high-strength concrete arc plate support, etc. In the recovery roadway (coal roadway), the main support technology is still mainly anchor rod support (including plastic net, metal net, "W" type steel belt and other combined forms).

[0003] According to the search, in the application patent with the application publication number CN105909289A, a deep three-soft coal seam asymmetric roadway support structure is disclosed, which comprises a roadway roof support, a roadway sidewall support and a roadway floor support. The roadway roof support comprises a metal net for supporting the roadway roof, and a top steel reinforced ladder beam, a top anchor rod and a top anchor cable for reinforcing the roadway roof. The roadway sidewall support comprises a high sidewall support and a low sidewall support. Both the high sidewall support and the low sidewall support comprise a welded flat net for supporting the roadway sidewall, and a sidewall reinforced ladder beam and a sidewall anchor rod for reinforcing the roadway sidewall. The high sidewall support further comprises a sidewall anchor cable.

[0004] In the existing technology, in order to strengthen the support structure, wood piles of corresponding heights are generally intercepted according to different roadway sections for support. However, the lengths of the wood piles are not the same, and the applicability is poor. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the scheme is to provide a surrounding rock reinforcing support device for a large-inclination irregular coal seam roadway, so as to solve the problem in the existing technology that, in order to strengthen the support structure, wood piles of corresponding heights are generally intercepted according to different roadway sections for support. However, the lengths of the wood piles are not the same, and the applicability is poor.

[0006] In order to achieve the above purpose, the surrounding rock reinforcing support device for a large-inclination irregular coal seam roadway comprises a steel mesh in contact with the surface of the roadway, the inner surface of the steel mesh is in contact with a steel belt, the inside of the steel belt is provided with an anchor rod and an anchor cable, the anchor rod and the anchor cable are arranged through the steel belt, and the anchor rod and the anchor cable are arranged through the steel mesh and inserted into the roadway.

[0007] Further, the device comprises a pad in contact with the ground, the upper end of the pad is fixedly connected with a threaded column, the outer side of the threaded column is connected with an adjusting sleeve through threads, the adjusting sleeve is provided with a lubricating mechanism, the top of the adjusting sleeve is fixedly connected with a ball head, the outer side of the ball head is movably connected with a connecting sleeve, the top of the connecting sleeve is fixedly connected with a fitting block, and the fitting block is in contact with the steel belt.

[0008] The principle of the scheme is that: in use, first, the reinforcement mesh is attached to the roadway surface, then the anchor rod and anchor cable are inserted into the roadway after penetrating the reinforcement mesh, and the anchor rod, anchor cable and reinforcement mesh are spaced by the steel belt, then the threaded column is supported on the ground through the pad at the bottom of the threaded column, and the pad is pressed, so that the wedge at the bottom of the pad is inserted into the ground, then the adjusting sleeve is screwed, the adjusting sleeve moves axially through the threaded movement with the threaded column, until the abutting block at the bottom of the adjusting sleeve abuts against the reinforcement mesh on the top of the roadway, compared with the fixed wooden pile in the prior art, the adaptability is higher, in addition, the inner threaded sleeve moves axially through the threaded movement between the adjusting sleeve and the inner threaded sleeve, and in the movement process, the slide pin is extruded and retracted, then the slide pin extrudes the inclined seat and moves downward under stress, thereby pressurizing the oil storage sponge and releasing the lubricating oil, the thread between the adjusting sleeve and the threaded column can be lubricated, thereby ensuring smooth adjustment and preventing jamming.

[0009] The technical effect of the scheme is that: by setting a combination of a threaded column and an adjusting sleeve instead of the original wooden pile, the bottom of the threaded column is provided with a pad with a wedge, and the top of the adjusting sleeve is provided with a movable abutting block for abutting with irregular roadways, so that the threaded adjustment between the threaded column and the adjusting sleeve can be applied to different roadways.

[0010] By providing a lubricating mechanism on the adjusting sleeve, the inner threaded sleeve moves axially through the threaded movement between the adjusting sleeve and the inner threaded sleeve, and in the movement process, the slide pin is extruded and retracted, then the slide pin extrudes the inclined seat and moves downward under stress, thereby pressurizing the oil storage sponge and releasing the lubricating oil, the thread between the adjusting sleeve and the threaded column can be lubricated, thereby ensuring smooth adjustment and preventing jamming.

[0011] Further, the bottom of the pad is fixedly connected with a plurality of wedges, and the wedges are inserted into the ground. Through the setting of the wedges, the stability of the pad support can be increased, and the pad is not easy to slip.

[0012] Further, the outer side of the adjusting sleeve is fixedly connected with an anti-skid sleeve, and the anti-skid sleeve is made of silica gel. Through the setting of the anti-skid sleeve, slipping during rotation of the adjusting sleeve can be prevented.

[0013] Further, the lubricating mechanism comprises a hollow ring fixedly connected to the inner side of the adjusting sleeve, an oil storage sponge is arranged at the upper end of the hollow ring, the oil storage sponge is slidably connected to the inner side of the adjusting sleeve, the top of the oil storage sponge is in contact with an inclined seat, the bottom of the inclined seat is fixedly connected with a sliding rod, the sliding rod penetrates through the oil storage sponge and is slidably connected with the oil storage sponge, the sliding rod penetrates through the hollow ring and extends to the bottom of the hollow ring, the bottom of the sliding rod is fixedly connected with a stop block, and the stop block is in contact with the hollow ring. Through the arrangement of the lubricating mechanism, the adjusting sleeve and the threaded column are lubricated.

[0014] Further, the outer side of the adjusting sleeve is threadedly connected with an internally threaded sleeve, the side wall of the adjusting sleeve is slidably connected with a sliding pin, and the sliding pin penetrates through the adjusting sleeve, one end of the sliding pin is in abutment with the inclined seat, and the other end of the sliding pin is in abutment with the internally threaded sleeve. The threaded movement between the internally threaded sleeve and the adjusting sleeve can generate axial movement, and during the movement, the sliding pin is pressed and retracted.

[0015] Further, a fixed ring is fixedly connected to the pin body of the sliding pin, a sliding ring is slidably connected to the pin body of the sliding pin, the sliding ring is in abutment with the adjusting sleeve, a spring is arranged on the outer side of the pin body of the sliding pin, one end of the spring is fixedly connected with the fixed ring, and the other end of the spring is fixedly connected with the sliding ring. The elastic force of the spring can act on the sliding pin through the fixed tube.

[0016] Further, the side wall of the adjusting sleeve is fixedly connected with an oil filling pipe, and the oil filling pipe penetrates through the adjusting sleeve, and the end of the oil filling pipe is slidably connected with a rubber plug. Through the oil filling pipe, the oil storage sponge can be supplemented with lubricating oil in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model.

[0018] Figure 2 It is an enlarged view of A of the embodiment of the utility model. Figure 1

[0019] The following will be further described in detail through specific embodiments:

[0020] The reference signs in the drawings of the specification comprise: reinforcing mesh 1, steel belt 2, anchor rod 3, anchor cable 4, threaded column 5, adjusting sleeve 6, lubricating mechanism 7, cushion block 8, wedge nail 81, anti-skid sleeve 9, ball head 10, connecting sleeve 11, adhering block 12, hollow ring 71, oil storage sponge 72, inclined seat 73, sliding rod 74, stop block 75, internally threaded sleeve 76, sliding pin 77, sliding ring 78, fixed ring 79, spring 710, oil filling pipe 711, rubber plug 712. DETAILED DESCRIPTION

[0021] The embodiment is basically as shown in the accompanying drawings​Figures 1-2 As shown: A reinforced support device for the surrounding rock of an irregular coal seam roadway with a steep inclination angle includes a steel mesh 1 in contact with the roadway surface, a steel strip 2 in contact with the inner surface of the steel mesh 1, and anchor bolts 3 and anchor cables 4 installed inside the steel strip 2. The anchor bolts 3 and anchor cables 4 are installed through the steel strip 2 and through the steel mesh 1 and inserted into the roadway.

[0022] It also includes a pad 8 that contacts the ground. Multiple wedges 81 are fixedly connected to the bottom of the pad 8, and the wedges 81 are inserted into the ground. The wedges 81 increase the stability of the pad 8, preventing slippage. A threaded post 5 is fixedly connected to the upper end of the pad 8. An adjusting sleeve 6 is threadedly connected to the outside of the threaded post 5. An anti-slip sleeve 9, made of silicone, is fixedly connected to the outside of the adjusting sleeve 6. The anti-slip sleeve 9 prevents slippage when rotating the adjusting sleeve 6. A ball head 10 is fixedly connected to the top of the adjusting sleeve 6. A connecting sleeve 11 is movably connected to the outside of the ball head 10. A contact block 12 is fixedly connected to the top of the connecting sleeve 11, and the contact block 12 abuts against the steel strip 2.

[0023] like Figure 2 As shown, the adjusting sleeve 6 is provided with a lubrication mechanism 7. The lubrication mechanism 7 provides lubrication between the adjusting sleeve 6 and the threaded column 5. The lubrication mechanism 7 includes a hollow ring 71 fixedly connected to the inner side of the adjusting sleeve 6. An oil storage sponge 72 is placed at the upper end of the hollow ring 71. The oil storage sponge 72 is slidably connected to the inner side of the adjusting sleeve 6. The top of the oil storage sponge 72 contacts an inclined seat 73. A slide rod 74 is fixedly connected to the bottom of the inclined seat 73. The slide rod 74 passes through the oil storage sponge 72 and is slidably connected to the oil storage sponge 72. The slide rod 74 passes through the hollow ring 71 and extends to the bottom of the hollow ring 71. A through-hole is opened inside the hollow ring 71. The slide rod 74 passes through the through-hole, and the diameter of the through-hole is larger than that of the slide rod 74 to facilitate the fall of lubricating oil. A stop block 75 is fixedly connected to the bottom of the slide rod 74 and contacts the hollow ring 71.

[0024] like Figure 2 As shown, an internally threaded sleeve 76 is threadedly connected to the outer side of the adjusting sleeve 6. A sliding pin 77 is slidably connected to the side wall of the adjusting sleeve 6, and the sliding pin 77 passes through the adjusting sleeve 6. One end of the sliding pin 77 abuts against the inclined seat 73, and the other end of the sliding pin 77 abuts against the internally threaded sleeve 76. The threaded movement between the internally threaded sleeve 76 and the adjusting sleeve 6 can produce axial movement, and during this movement, it will squeeze the sliding pin 77 and cause the sliding pin 77 to retract inward.

[0025] The pin body of the sliding pin 77 is fixedly connected with a fixed ring 79, and the pin body of the sliding pin 77 is slidably connected with a sliding ring 78, the sliding ring 78 is in abutment with the adjusting sleeve 6, the outer side of the pin body of the sliding pin 77 is provided with a spring 710, one end of the spring 710 is fixedly connected with the fixed ring 79, and the other end of the spring 710 is fixedly connected with the sliding ring 78. The spring force of the spring 710 can act on the sliding pin 77 through the fixed ring 79. The side wall of the adjusting sleeve 6 is fixedly connected with an oil filler pipe 711, the oil filler pipe 711 penetrates through the adjusting sleeve 6 and is arranged, and the end of the oil filler pipe 711 is slidably connected with a rubber plug 712. Through the oil filler pipe 711, it is convenient to supplement the lubricating oil to the oil storage sponge 72 in the later period.

[0026] The specific implementation process of the utility model is as follows: in use, first, the reinforcement mesh 1 is attached to the roadway, then the anchor rod 3 and the anchor cable 4 are inserted into the roadway after penetrating the reinforcement mesh 1, and the anchor rod 3, the anchor cable 4 and the reinforcement mesh 1 are spaced by the steel band 2, then the threaded column 5 is supported on the ground through the cushion block 8 at the bottom of the threaded column 5, and the cushion block 8 is pressed, so that the wedge nail 81 at the bottom of the cushion block 8 is inserted into the ground, then the adjusting sleeve 6 is screwed, the adjusting sleeve 6 moves axially through the threaded movement with the threaded column 5, until the abutting block 12 at the bottom of the adjusting sleeve 6 abuts against the reinforcement mesh 1 on the top of the roadway, compared with the past fixed wooden pile, the applicability is higher, in addition, the inner threaded sleeve 76 is screwed, the inner threaded sleeve 76 moves axially through the threaded movement between the adjusting sleeve 6, and in the moving process, the sliding pin 77 is extruded and retracted, then the sliding pin 77 extrudes the inclined surface seat 73, so that the inclined surface seat 73 moves downward under stress, thereby pressurizing the oil storage sponge 72 and releasing lubricating oil, the thread between the adjusting sleeve 6 and the threaded column 5 can be lubricated, thereby ensuring the smoothness of the adjustment and preventing jamming.

[0027] The utility model discloses a threaded column 5 and the combination of adjusting sleeve 6 are arranged, instead of the original wooden pile, the bottom of the threaded column 5 is provided with the cushion block 8 with the wedge nail 81, and the top of the adjusting sleeve 6 is provided with the movable abutting block 12 for abutting with the irregular roadway, so that the threaded adjustment between the threaded column 5 and the adjusting sleeve 6 can be suitable for different roadways.

[0028] The lubricating mechanism 7 is arranged on the adjusting sleeve 6, the inner threaded sleeve 76 moves axially through the threaded movement between the adjusting sleeve 6, and in the moving process, the sliding pin 77 is extruded and retracted, then the sliding pin 77 extrudes the inclined surface seat 73, so that the inclined surface seat 73 moves downward under stress, thereby pressurizing the oil storage sponge 72 and releasing lubricating oil, the thread between the adjusting sleeve 6 and the threaded column 5 can be lubricated, thereby ensuring the smoothness of the adjustment and preventing jamming.

[0029] The above only is the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described too much here. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A device for reinforcing the support of roadway surrounding rock in large-inclination irregular coal seams, comprising a steel mesh in contact with the surface of the roadway, the inner surface of the steel mesh being in contact with a steel belt, the interior of the steel belt being provided with anchor rods and anchor cables, the anchor rods and anchor cables being arranged through the steel belt, the anchor rods and anchor cables being arranged through the steel mesh and inserted into the roadway; Also included is a pad for contacting the ground, characterized by: The upper end of the pad is fixedly connected with a threaded column, the outer side of the threaded column is connected with an adjusting sleeve through threads, the adjusting sleeve is provided with a lubricating mechanism, the top of the adjusting sleeve is fixedly connected with a ball head, the outer side of the ball head is movably connected with a connecting sleeve, the top of the connecting sleeve is fixedly connected with a fitting block, and the fitting block is in contact with the steel belt.

2. The device according to claim 1, characterized in that: The bottom of the pad is fixedly connected with a plurality of wedge nails, and the wedge nails are inserted into the ground.

3. The device according to claim 1, characterized in that: The outer side of the adjusting sleeve is fixedly connected with an anti-skid sleeve, and the anti-skid sleeve is made of silica gel.

4. The device according to claim 1, characterized in that: The lubricating mechanism comprises a hollow ring fixedly connected to the inner side of the adjusting sleeve, an oil storage sponge is placed at the upper end of the hollow ring, the oil storage sponge is movably connected to the inner side of the adjusting sleeve, the top of the oil storage sponge is in contact with a bevel seat, the bottom of the bevel seat is fixedly connected with a sliding rod, the sliding rod passes through the oil storage sponge and is movably connected with the oil storage sponge, the sliding rod passes through the hollow ring and extends to the bottom of the hollow ring, the bottom of the sliding rod is fixedly connected with a stop block, and the stop block is in contact with the hollow ring.

5. The device according to claim 4, characterized in that: The outer side of the adjusting sleeve is connected with an internal thread sleeve through threads, the side wall of the adjusting sleeve is movably connected with a sliding pin, and the sliding pin is arranged through the adjusting sleeve, one end of the sliding pin is in contact with the bevel seat, and the other end of the sliding pin is in contact with the internal thread sleeve.

6. The device for reinforcing support of surrounding rock of a large-inclination irregular coal seam roadway according to claim 5, characterized in that: The pin body of the sliding pin is fixedly connected with a fixed ring, the pin body of the sliding pin is movably connected with a sliding ring, the sliding ring is in contact with the adjusting sleeve, the outer side of the pin body of the sliding pin is sleeved with a spring, one end of the spring is fixedly connected with the fixed ring, and the other end of the spring is fixedly connected with the sliding ring.

7. The device according to claim 4, characterized in that: The side wall of the adjusting sleeve is fixedly connected with an oil filling pipe, and the oil filling pipe is arranged through the adjusting sleeve, the end of the oil filling pipe is movably connected with a rubber plug.

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