CN112302698B - A folding hydraulic roadway support device for easy handling - Google Patents

Abstract

The invention relates to the field of folding hydraulic roadway support devices, in particular to a folding hydraulic roadway support device convenient to carry, which comprises a support mechanism, a traveling mechanism, a limiting mechanism, a punching mechanism and an expansion mechanism, wherein the support mechanism is arranged on the support mechanism; supporting mechanism's setting is convenient for play the effect of strutting to the top in tunnel, be convenient for follow the progress of excavation and the automatic movement position through running gear's setting, the tunnel support removal efficiency has been improved, the stability of running gear's hydraulic support part is convenient for improve through stop gear's setting, increase its structural strength, and can dismantle fast when dismantling the transport, the use flexibility ratio of device has been improved, be convenient for erect fixed protective part to the passageway lateral wall that excavates through extension mechanism's setting, safety in production has been guaranteed, it is spacing to fix on the lateral wall in tunnel to be convenient for through the setting of mechanism of punching, the risk of collapsing in tunnel has been avoided, and intensity of labour has been alleviateed and operating efficiency has been improved.

Description

A folding hydraulic roadway support device for easy handling

technical field

The invention relates to the field of folding hydraulic roadway supporting devices, in particular to a folding hydraulic roadway supporting device which is convenient for handling.

Background technique

my country's coal mines are mainly underground mining, and a large number of tunnels need to be excavated underground. The use of tunnel support to keep the tunnel smooth and the surrounding rock stable is of great significance to coal mine construction and production. Usually, in order to make the roadway support play an active role in the process of adjusting and controlling the deformation of the surrounding rock, the support should be installed before the surrounding rock is loosened and destroyed, so that the support can be connected with the surrounding rock when the surrounding rock is still self-supporting. Instead of waiting for the surrounding rock to be loosened and damaged, and almost completely lose its self-supporting force, then use the bracket to bear the weight of the falling rock. That is to say, the support and the surrounding rock should be jointly supported under the condition of mutual restraint and mutual dependence.

Due to the large size and area of the mining equipment, the weight and volume of the general hydraulic support equipment are relatively heavy, which is extremely inconvenient when it needs to be transferred, and most of the traditional support devices are supported by fixed section steel. , the section steel support significantly reduces the effect of roadway support, and increases the support cost of the roadway and increases the labor of workers.

SUMMARY OF THE INVENTION

In view of the problems in the prior art, the present invention provides a folding hydraulic roadway support device that is easy to handle.

The technical scheme adopted by the present invention to solve the technical problem is as follows: a folding hydraulic roadway support device which is convenient for handling, including a support mechanism, a traveling mechanism, a limit mechanism, a punching mechanism and an expansion mechanism, and is used for automatically moving in the roadway. The walking mechanism is arranged at the bottom end of the supporting mechanism used to support the roadway, and the walking mechanism is provided with two, and the limit mechanism for assisting the smooth movement of the walking mechanism is provided. Between the walking mechanisms, the expansion mechanism for erecting the steel mesh on the sidewall of the newly opened roadway is arranged around the support mechanism, and the expansion mechanism for anchoring the newly erected steel mesh is provided. The punching mechanism is arranged at both ends of the support mechanism, and the punching mechanism is provided with a plurality of holes.

Specifically, the support mechanism includes a main support, a first carriage, a second carriage and a sub-support, the main supports are provided with two groups, each group is provided with multiple main supports, and the main supports are arranged between two groups. The bottom ends of one group of the main brackets are slidably connected with the two first carriages, and the bottom ends of the other group of the main brackets are slidably connected with the two second carriages. The length of the second carriage is greater than the length of the first carriage, and two of the auxiliary brackets are vertically fixed on the side wall of the first carriage.

Specifically, the walking mechanism includes a first hydraulic rod, a second hydraulic rod, a support base, a first motor, a first screw rod, a second motor and a second screw rod, and the bottoms of both ends of the first carriage are fixedly connected There is the second hydraulic rod, the bottom of the two ends of the second carriage is fixedly connected with the first hydraulic rod, and the bottom ends of the first hydraulic rod and the second hydraulic rod are respectively fixed with the support base , wherein the first motor is installed on both sides of one set of the main brackets, and the second motor is installed on the bottom side of the other set of the main brackets, and the two ends of the first motor are respectively fixed with The first screw rod, one end of the first screw rod penetrates the first carriage and is threadedly connected to the first carriage, and two ends of the second motor are respectively fixed with one of the second wires A rod, one end of the second screw rod penetrates the second carriage and is threadedly connected to the second carriage.

Specifically, the limit mechanism includes a connecting rod, a collar, a shield, a limit rod, a spring, and a pull ring, between the two first hydraulic rods on the same side and between the two second hydraulic rods The connecting rods are respectively arranged between the two ends of the connecting rods, and one of the sleeve rings is respectively engaged with the two ends of the connecting rod, and a plurality of the sleeve rings are respectively fixed on the sides of the first hydraulic rod and the second hydraulic rod. On the wall, the shield is fixed on the outer side wall of the collar, the limit rod is arranged inside the shield, one end of the limit rod extends to the outside of the shield and the other end Through the collar, it is engaged with the inside of the connecting rod, the side wall of the limit rod is wound with the spring, one end of the spring is fixed on the side wall of the shield, and the other end is in contact with the side wall of the shield. On the side wall of the collar, the pull ring is provided at one end of the limiting rod located outside the shield.

Specifically, the expansion mechanism includes a rotating plate, a second fixing block and a third hydraulic rod. One end of the two sets of main supports is respectively rotated with a plurality of the rotating plates. The rotating plates and the bottom of the main support A second fixing block is respectively fixed at the ends, and the third hydraulic rod is rotated between the two second fixing blocks.

Specifically, the punching mechanism includes a first fixing block, a chute, a third motor, a first limit block, a third screw rod, a drill bit and a second limit block, and the auxiliary bracket is away from the first sliding block. One end of the frame is fixed with the first fixing block, the inside of the first fixing block is provided with the chute, the inside of the chute is slid with the third motor, and the top of the first fixing block is fixed There is the second limit block and the first limit block is fixed at the bottom end, the third screw rod is fixed at the bottom end of the third motor, and the bottom end of the third screw rod extends to the The inside of the second limit block is threadedly connected to the second limit block, the top end of the third motor is fixed with the drill bit, and the top end of the drill bit penetrates the second limit block and is rotatably connected to the second limit block. the second limit block.

Beneficial effects of the present invention:

(1) A folding hydraulic roadway support device that is easy to handle according to the present invention is convenient to support the top of the roadway through the setting of the support mechanism, and the cross-distributed support profiles increase the structure of the support device It is strong and reduces its own weight and reduces the moving load of the walking mechanism, that is, because the two sets of main brackets are combined by two first carriages and two second carriages, the sliding connection can be achieved while ensuring the For the support of the roadway, the setting of the auxiliary support facilitates the punching mechanism to follow the moving support device to drill and set up anchor holes, which provides a good platform for the subsequent permanent support and protection of the roadway, which is convenient for supporting the top of the roadway. The cross-distributed support profiles increase the structural strength of the support device, reduce its own weight, and reduce the moving load of the walking mechanism.

(2) A folding hydraulic roadway support device of the present invention is easy to carry. The traveling mechanism is arranged at the bottom end of the supporting mechanism, and there are multiple traveling mechanisms. The setting of the traveling mechanism facilitates automatic movement following the progress of the excavation. The location improves the moving efficiency of roadway support, and creates favorable conditions for the rapid advancement of the mining face and the substantial increase in ore volume. The stability of the hydraulic support parts of the mechanism increases its structural strength, and can be quickly disassembled during disassembly and handling, which improves the flexibility of the device. The second hydraulic rod shrinks, and then the first motor is activated to drive the first screw rod to rotate, then the two first sliding rods move at a constant speed in the direction of new excavation, and the first motor is powered off after the first sliding frame slides to the limit position , then operate the second hydraulic rod to extend, so that the support base is re-supported to the ground, thus completing the movement of one group of main supports, operate the first hydraulic rod to shrink, and then start the second motor to drive the first hydraulic rod through the second screw rod. The two carriages move in the same direction as the first carriage, and after the displacement reaches the limit position, the second motor is turned off and the first hydraulic rod is operated to support the ground, so as to complete the movement of the other group of main supports, which is convenient to follow the progress of the excavation. Automatically move the position, improve the moving efficiency of the roadway support, and create good conditions for the rapid advancement of the mining face and the substantial increase in the amount of ore. That is, when the device needs to be transferred to other use sites, the support first To remove the connecting rod of the first hydraulic rod and the second hydraulic rod, first pull the pull ring so that the limit rod slides after offsetting the force of the spring, then one end of the limit rod does not limit the connecting rod, and the connecting rod is operated again. The pull ring at one end releases the restriction, thereby facilitating the improvement of the stability of the hydraulic support part of the traveling mechanism, increasing its structural strength, and being able to be quickly disassembled during disassembly and transportation, thereby improving the use flexibility of the device.

(3) A folding hydraulic roadway support device of the present invention is easy to handle. The expansion mechanism is arranged around the support mechanism, and the setting of the expansion mechanism facilitates the erection of fixed protective components on the excavated channel side walls, which greatly simplifies mining. The working face support technology ensures safe production. The punching mechanism is set at both ends of the supporting mechanism, and there are multiple punching mechanisms. The setting of the punching mechanism is convenient to limit and fix the fixed protective components on the side of the roadway. On the wall, the collapse risk of the roadway is avoided, the labor intensity is reduced, and the operation efficiency is improved. That is, as the excavation advances, the device will be transferred accordingly, and the part previously supported by the device will be exposed. At this time Operate the third hydraulic rod to retract, the rotating plate deflects to the bottom end, and then place the protective component on the top side of the roadway where the rotating plate is in contact, and operate the third hydraulic rod to extend, the rotating plate will push the protective component against the top side of the roadway, This facilitates the subsequent fixing operation of the punching mechanism, and further facilitates the erection of fixed protective components on the side walls of the excavated channel, which greatly simplifies the mining face support process and ensures safe production. , start the third motor, the drill bit at the top of the third motor and the third screw rod at the bottom end rotate at the same time, the third screw rod starts to move to the top while the first limit block is threadedly connected, and the drill bit starts to touch the top of the roadway. Tight drilling, the setting of the second limit block can reduce the shaking of the end of the drill bit and ensure that the drilled hole has a higher concentricity. After the drilling reaches the predetermined depth, the third motor can be reversed to return to the original position. Then, these holes can be used to insert fixed support components such as expansion nails, so that the fixed protective components can be easily limited and fixed on the side wall of the roadway, thereby avoiding the collapse risk of the roadway, reducing labor intensity and improving work efficiency.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

1 is a schematic structural diagram of the overall structure of a preferred embodiment of a folding hydraulic roadway support device for easy handling provided by the present invention;

FIG. 2 is a schematic diagram of the connection structure of the support mechanism and the punching mechanism shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the limiting mechanism shown in FIG. 1;

Fig. 4 is the enlarged schematic diagram of A part shown in Fig. 1;

Fig. 5 is the enlarged schematic diagram of B part shown in Fig. 1;

FIG. 6 is an enlarged schematic view of the C part shown in FIG. 1 .

In the figure: 1. Supporting mechanism, 11, Main support, 12, First carriage, 13, Second carriage, 14, Sub-support, 2. Travel mechanism, 21, First hydraulic rod, 22, Second hydraulic rod , 23, support base, 24, first motor, 25, first screw rod, 26, second motor, 27, second screw rod, 3, limit mechanism, 31, connecting rod, 32, collar, 33, Shield, 34, Limit rod, 35, Spring, 36, Pull ring, 4, Punching mechanism, 41, First fixing block, 42, Chute, 43, Third motor, 44, First limit block, 45, the third screw, 46, the drill bit, 47, the second limit block, 5, the expansion mechanism, 51, the rotating plate, 52, the second fixed block, 53, the third hydraulic rod.

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

As shown in Figures 1 to 6, a folding hydraulic roadway support device for easy handling according to the present invention includes a support mechanism 1, a traveling mechanism 2, a limit mechanism 3, a punching mechanism 4 and an expansion mechanism 5. The traveling mechanism 2 that automatically moves in the roadway is provided at the bottom end of the supporting mechanism 1 for supporting the roadway, and two traveling mechanisms 2 are provided to assist the traveling mechanism. 2. The limit mechanism 3 that moves smoothly is set between the walking mechanisms 2, and the expansion mechanism 5 for erecting the steel mesh on the side wall of the newly opened roadway is set around the support mechanism 1. The punching mechanisms 4 for anchoring the newly erected steel mesh are provided at both ends of the support mechanism 1 , and there are multiple punching mechanisms 4 .

Specifically, the support mechanism 1 includes a main bracket 11 , a first carriage 12 , a second carriage 13 and an auxiliary bracket 14 , the main brackets 11 are provided with two groups, and each group of the main brackets 11 is provided with a plurality of , and the main brackets 11 are slidably connected, wherein the bottom ends of a group of the main brackets 11 are slidably connected with two of the first carriages 12 and the bottom ends of the other group of the main brackets 11 are slidably connected with Two second carriages 13, the second carriage 13 is longer than the length of the first carriage 12, and two auxiliary brackets 14 are vertically fixed on the side wall of the first carriage 12, Since the two sets of the main supports 11 are combined together by the two first sliding frames 12 and the two second sliding frames 13, the sliding connection can be achieved while the support for the roadway can be ensured. The arrangement of the auxiliary support 14 is convenient for the punching mechanism 4 to follow the moving support device to punch holes to set up anchor holes, which provides a good platform for the subsequent permanent support and protection of the roadway, and thus facilitates the support of the top of the roadway. , and the cross-distributed support profiles increase the structural strength of the support device, reduce its own weight, and reduce the moving load of the walking mechanism 2 .

Specifically, the walking mechanism 2 includes a first hydraulic rod 21 , a second hydraulic rod 22 , a support base 23 , a first motor 24 , a first screw rod 25 , a second motor 26 and a second screw rod 27 . The second hydraulic rods 22 are fixedly connected to the bottoms of both ends of a carriage 12 , the first hydraulic rods 21 are fixedly connected to the bottoms of both ends of the second carriage 13 , the first hydraulic rods 21 and the The bottom ends of the two hydraulic rods 22 are respectively fixed with the support bases 23 , wherein the first motor 24 is installed on both sides of one group of the main brackets 11 , and the bottom side of the other group of the main brackets 11 is installed There is the second motor 26 , the first screw rod 25 is fixed at both ends of the first motor 24 , and one end of the first screw rod 25 penetrates the first carriage 12 and is threadedly connected to the The first carriage 12 and the second motor 26 are respectively fixed with a second screw rod 27 at both ends, and one end of the second screw rod 27 penetrates the second carriage 13 and is threadedly connected to the For the second carriage 13, when the newly opened roadway needs to be supported and protected, the plurality of second hydraulic rods 22 are first operated to shrink, and then the first motor 24 is activated to drive the first screw rod 25. Rotate, the two first sliding rods 12 move at a constant speed in the direction of new excavation. After the first sliding frame 12 slides to the limit position, the first motor 24 is powered off, and then the second hydraulic rod is operated. 22 is extended, so that the support base 23 is re-supported to the ground, so as to complete the movement of one group of the main supports 11, operate the first hydraulic rod 21 to shrink, and then start the second motor 26 to make it pass through The second screw rod 27 drives the second carriage 13 to move in the same direction as the first carriage 12 , and then turns off the second motor 26 and operates the first hydraulic rod 21 after moving to the limit position. Support the ground, so as to complete the movement of the other group of the main supports 11, and then it is convenient to automatically move the position following the progress of the excavation, improve the moving efficiency of the roadway support, and greatly improve the mining face and the ore volume. Created good conditions.

Specifically, the limiting mechanism 3 includes a connecting rod 31 , a collar 32 , a shield 33 , a limiting rod 34 , a spring 35 , and a pull ring 36 , between the two first hydraulic rods 21 on the same side and between the two The connecting rods 31 are respectively disposed between the second hydraulic rods 22 , the two ends of the connecting rods 31 are respectively engaged with one of the collars 32 , and a plurality of the collars 32 are respectively fixed to the The shield 33 is fixed on the side walls of the first hydraulic rod 21 and the second hydraulic rod 22 and the outer side wall of the collar 32 , and the limit rod 34 is arranged inside the shield 33 , one end of the limit rod 34 extends to the outside of the shield 33 and the other end penetrates the collar 32 and is engaged with the inside of the connecting rod 31 , and the side wall of the limit rod 34 is wound with For the spring 35 , one end of the spring 35 is fixed on the side wall of the shield 33 and the other end is in contact with the side wall of the collar 32 , and the limit rod 34 is located outside the shield 33 The pull ring 36 is provided at one end of the device, because when the device needs to be transferred to other use sites, the connecting rod 31 supporting the first hydraulic rod 21 and the second hydraulic rod 22 needs to be removed at this time. , first pull the pull ring 36, so that the limit rod 34 slides after offsetting the force of the spring 35, then one end of the limit rod 34 is not limited to the connecting rod 31, and the connection is operated again The pull ring 36 at the other end of the rod 31 is released from the restriction, thereby facilitating the improvement of the stability of the hydraulic support member of the walking mechanism 2, increasing its structural strength, and being able to be quickly disassembled during disassembly and transportation, which improves the flexibility of the device. Spend.

Specifically, the expansion mechanism 5 includes a rotating plate 51, a second fixing block 52 and a third hydraulic rod 53. One end of the two main brackets 11 is respectively rotated with a plurality of the rotating plates 51. The rotating plates 51 A second fixing block 52 is respectively fixed to the bottom end of the main support 11 , and the third hydraulic rod 53 is rotated between the two second fixing blocks 52 . The device will also shift accordingly, and the part previously supported by the device will be exposed. At this time, the third hydraulic rod 53 is operated to shrink, and the rotating plate 51 is deflected to the bottom end, and then moves to the position before the rotating plate 51. When the protective assembly is placed against the top side of the roadway, and the third hydraulic rod 53 is operated to extend, the rotating plate 51 pushes the protective assembly against the top side of the roadway, so as to facilitate the subsequent fixing operation of the punching mechanism 4, and then It is convenient to erect fixed protective parts on the sidewall of the excavated channel, which greatly simplifies the supporting process of the mining face and ensures safe production.

Specifically, the punching mechanism 4 includes a first fixing block 41 , a chute 42 , a third motor 43 , a first limit block 44 , a third screw rod 45 , a drill bit 46 and a second limit block 47 . The first fixing block 41 is fixed at one end of the auxiliary bracket 14 away from the first sliding frame 12 . The first fixing block 41 is provided with the sliding groove 42 , and the inner sliding groove 42 slides slightly. For the third motor 43 , the top end of the first fixing block 41 is fixed with the second limit block 47 and the bottom end is fixed with the first limit block 44 , and the bottom end of the third motor 43 is fixed with the second limit block 47 . For the third screw rod 45 , the bottom end of the third screw rod 45 extends to the inside of the second limit block 47 and is threadedly connected to the second limit block 47 . The top end is fixed with the drill bit 46 , the top end of the drill bit 46 penetrates the second limit block 47 and is rotatably connected to the second limit block 47 , because when the top of the roadway needs to be drilled, the With the third motor 43 , the drill bit 46 at the top end of the third motor 43 and the third screw rod 45 at the bottom end rotate simultaneously, and the third screw rod 45 is threadedly connected to the first stopper 44 . At the same time, starting to move to the top end, the drill bit 46 starts to press against the top of the roadway for drilling. The setting of the second limit block 47 can reduce the shaking of the end of the drill bit 46 and ensure that the drilled holes are concentric. After the drilling reaches a predetermined depth, the third motor 43 can be reversed to fall back to the initial position, and then the fixed support components such as expansion nails can be inserted through these holes, thereby facilitating the positioning of the fixed protective components. It is fixed on the side wall of the roadway, avoiding the collapse risk of the roadway, reducing the labor intensity and improving the operation efficiency.

When the present invention is in use, since the two sets of main supports 11 are combined together by two first sliding frames 12 and two second sliding frames 13, the sliding connection can be achieved while ensuring the support of the roadway. The setting of the bracket 14 is convenient for the punching mechanism 4 to follow the moving support device to punch holes to set up anchor holes, which provides a good platform for the subsequent permanent support and protection of the roadway, and thus facilitates the support of the top of the roadway, and the cross-distribution The supporting profile increases the structural strength of the supporting device, reduces its own weight, and reduces the moving load of the traveling mechanism 2; because when it is necessary to support and protect the newly opened roadway, first operate a plurality of second hydraulic rods 22 shrink, and then start the first motor 24 to drive the first screw rod 25 to rotate, then the two first sliding rods 12 move at a constant speed in the direction of new excavation, and after the first sliding frame 12 slides to the limit position, the first motor 24 is broken. electricity, then operate the second hydraulic rod 22 to extend, so that the support base 23 is re-supported to the ground, thereby completing the movement of one group of main supports 11, operate the first hydraulic rod 21 to shrink, and then start the second motor 26 to make it pass through The second screw rod 27 drives the second carriage 13 to move in the same direction as the first carriage 12 , and after the displacement reaches the limit position, the second motor 26 is turned off and the first hydraulic rod 21 is operated to support the ground, thereby completing the operation of the other set of main The movement of the bracket 11 facilitates the automatic movement of the position following the progress of the excavation, improves the moving efficiency of the roadway support, and creates good conditions for the rapid advancement of the mining face and the substantial increase in the amount of ore; due to the need to transfer the device to other At this time, the connecting rod 31 supporting the first hydraulic rod 21 and the second hydraulic rod 22 needs to be removed, and the pull ring 36 is first pulled, so that the limit rod 34 slides after offsetting the force of the spring 35, then One end of the limit rod 34 is not limited to the connecting rod 31, and the pull ring 36 at the other end of the connecting rod 31 is operated again to release the restriction, thereby facilitating the improvement of the stability of the hydraulic support member of the walking mechanism 2, increasing its structural strength, and being able to The quick disassembly during disassembly and handling improves the flexibility of the device; since the device will be shifted accordingly with the advancement of the tunnel, the part previously supported by the device will be exposed, and at this time, the third hydraulic rod 53 is operated to shrink , then the rotating plate 51 is deflected to the bottom end, and then the protective assembly is placed on the top side of the roadway that the rotating plate 51 was in contact with before, and the third hydraulic rod 53 is operated to extend, then the rotating plate 51 will push the protective assembly against the top side of the roadway, so as to facilitate The subsequent fixing operation of the punching mechanism 4 facilitates the erection of fixed protective components on the sidewall of the excavated passage, which greatly simplifies the mining face support process and ensures safe production; since the top of the roadway needs to be drilled, start the With the third motor 43, the drill bit 46 at the top of the third motor 43 and the third screw rod 45 at the bottom end rotate at the same time, and the third screw rod 45 starts to move to the top while screwing the first limit block 44, then the drill bit 46 pairs The top of the roadway begins to press against the drilling hole, and the setting of the second limit block 47 can reduce the shaking of the end of the drill bit 46 and ensure the drilling out. The concentricity of the holes is higher, and after the drilling reaches the predetermined depth, the third motor 43 can be reversed to fall back to the initial position, and then these holes can be used to insert fixed support components such as expansion nails, so as to facilitate the limitation of the fixed protective components. It is fixed on the side wall of the roadway, avoiding the collapse risk of the roadway, reducing the labor intensity and improving the operation efficiency.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (1)

1. A folding hydraulic roadway support device for easy handling, characterized in that: comprising a support mechanism (1), a traveling mechanism (2), a limit mechanism (3), a punching mechanism (4) and an expansion mechanism (5) , the walking mechanism (2) for automatically moving in the roadway is provided at the bottom end of the supporting mechanism (1) for supporting the roadway, and the walking mechanism (2) is provided with two , the limiting mechanism (3) for assisting the smooth movement of the traveling mechanism (2) is arranged between the traveling mechanisms (2), and the side wall of the newly opened roadway is used to erect the steel mesh. The expansion mechanism (5) is arranged around the supporting mechanism (1), and the punching mechanism (4) used for punching and anchoring the newly erected steel mesh is arranged at both ends of the supporting mechanism (1). , and the punching mechanism (4) is provided with a plurality of; The support mechanism (1) includes a main support (11), a first carriage (12), a second carriage (13) and a sub-support (14), and the main support (11) is provided with two groups, each of which is arranged in two groups. A plurality of the main brackets (11) are provided, and the main brackets (11) are slidably connected, wherein the bottom ends of a group of the main brackets (11) are slidably connected with two first carriages (11). 12) and two second carriages (13) are slidably connected to the bottom ends of the other set of main brackets (11), and the second carriages (13) are larger than the first carriages (12) The length of the first carriage (12) is vertically fixed with two auxiliary brackets (14) on the side wall; The walking mechanism (2) includes a first hydraulic rod (21), a second hydraulic rod (22), a support base (23), a first motor (24), a first screw rod (25), and a second motor (26) ) and a second screw rod (27), the second hydraulic rods (22) are fixedly connected to the bottoms of both ends of the first carriage (12), and the bottoms of both ends of the second carriage (13) are fixedly connected to The bottom ends of the first hydraulic rod (21), the first hydraulic rod (21) and the second hydraulic rod (22) are respectively fixed with the support base (23), wherein a group of the main supports The first motors (24) are respectively installed on both sides of the (11), and the second motors (26) are installed on the bottom sides of another set of the main brackets (11). The first motors (24) ) are respectively fixed with the first screw rod (25), and one end of the first screw rod (25) penetrates the first carriage (12) and is threadedly connected to the first carriage (12). ), two ends of the second motor (26) are respectively fixed with a second lead screw (27), one end of the second lead screw (27) penetrates the second carriage (13) and is threaded connected to the second carriage (13); The limiting mechanism (3) includes a connecting rod (31), a collar (32), a shield (33), a limiting rod (34), a spring (35), and a pull ring (36), two on the same side The connecting rods (31) are respectively provided between the first hydraulic rods (21) and between the two second hydraulic rods (22), and two ends of the connecting rods (31) are respectively engaged with One of the collars (32), a plurality of the collars (32) are respectively fixed on the side walls of the first hydraulic rod (21) and the second hydraulic rod (22), the collars ( 32) The protective cover (33) is fixed on the outer side wall of the protective cover (33), the limit rod (34) is arranged inside the protective cover (33), and one end of the limit rod (34) extends to the The outer side and the other end of the shield (33) pass through the collar (32) and are engaged with the inside of the connecting rod (31), and the spring (35) is wound on the side wall of the limiting rod (34). ), one end of the spring (35) is fixed on the side wall of the shield (33) and the other end is in contact with the side wall of the collar (32), the limit rod (34) is located at the The pull ring (36) is provided at one end of the outer side of the shield (33); The expansion mechanism (5) includes a rotating plate (51), a second fixing block (52) and a third hydraulic rod (53), and one end of the two sets of the main brackets (11) is respectively rotated with a plurality of the rotating plates (51), a second fixing block (52) is respectively fixed to the bottom ends of the rotating plate (51) and the main support (11), and the two second fixing blocks (52) are fixed between the two second fixing blocks (52). The third hydraulic rod (53) is rotated; The punching mechanism (4) includes a first fixing block (41), a chute (42), a third motor (43), a first limiting block (44), a third screw rod (45), and a drill bit (46) ) and a second limiting block (47), the first fixing block (41) is fixed at the end of the auxiliary bracket (14) facing away from the first carriage (12), and the first fixing block (41) ) is provided with the chute (42), the third motor (43) is slid inside the chute (42), and the second motor (43) is fixed on the top of the first fixing block (41). A limit block (47) is fixed with the first limit block (44) at the bottom end, the third screw rod (45) is fixed at the bottom end of the third motor (43), and the third screw The bottom end of the rod (45) extends to the inside of the second limit block (47) and is threadedly connected to the second limit block (47), and the top end of the third motor (43) is fixed with the A drill bit (46), the top end of the drill bit (46) penetrates the second limit block (47) and is rotatably connected to the second limit block (47).

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