A drum-type flexible protective screen laying device

Abstract

The application discloses a drum-type flexible protective net laying device and relates to the technical field of tunnel face support, which comprises a supporting frame, a net laying mechanism and a pressing mechanism. The net laying mechanism comprises a roller shaft and a coiled flexible protective net. The roller shaft is rotatably arranged on the supporting frame. The width direction of the flexible protective net is the first direction, and the length direction of the flexible protective net is the second direction. A plurality of adhesive point groups are fixedly arranged on one side of the flexible protective net. Each adhesive point group comprises a plurality of adhesive substance capsules containing adhesive substances. Each adhesive point group is sequentially arranged along the second direction, and each adhesive substance capsule of the adhesive point group is sequentially arranged along the first direction. The pressing mechanism comprises a plurality of pressing assemblies, and each pressing assembly is sequentially arranged on the supporting frame along the first direction. The pressing assembly is provided with an extensible telescopic end, and the telescopic end can abut against the side of the flexible protective net away from the laying surface. The flexible protective net has good adhesion, high laying efficiency and full performance advantages.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel face support, in particular to a drum-type flexible protective net laying device. BACKGROUND

[0002] Rock burst disaster affects construction progress and threatens the safety of construction personnel, and has become one of the world's problems in the field of underground engineering. In order to prevent and control rock burst geological disasters, some scholars consider applying flexible protective nets (geosynthetics, which are two-dimensional grid screens made of polypropylene, polyvinyl chloride and other high molecular polymers through thermal plasticization or molding, and are a kind of high toughness material, thus having a certain flexibility and being able to change its surface morphology through external force) to tunnel support to form a flexible support system with sprayed concrete layer and anchor rod, so as to absorb the impact energy of rock burst stone and protect the safety of personnel and equipment in the tunnel. The flexible net support system sprays concrete as the initial support after tunnel excavation, then punches anchor rod holes at the position of the tunnel body, inserts the anchor rod into the reserved hole after the flexible net is laid, and then applies a washer, bolt and the like at the position of the exposed head of the anchor rod to prevent the flexible protective net from falling off the anchor rod. After the operation is completed, the concrete is re-sprayed to form an anchor rod-flexible net-sprayed concrete support system, so as to achieve the effect of rock burst prevention by using the flexible protective net.

[0003] When rock burst occurs, part of the rock blocks in the complete rock surface falls off at a certain speed, and the strain energy of the rock mass is released and converted into the kinetic energy of the rock blocks, i.e. the impact load generated by rock burst. The flexible net support structure absorbs the impact load of the rock blocks through its own deformation to prevent the rock blocks from completely falling off and endangering the safety of construction personnel and the tunnel. Therefore, after the tunnel is excavated, the flexible protective net is laid first, and then the concrete is sprayed to cover the flexible protective net to form an initial support system.

[0004] The existing net laying equipment adopts a mechanical arm with eight rods to carry the flexible net on the eight rods, and pushes the flexible net upward to press against the rock surface through the hydraulic system of the mechanical arm, and directly punches the anchor rod through the anchor rod mechanical arm.

[0005] However, the method has the following disadvantages:

[0006] (1) In the process of ascending of the mechanical arm and unfolding of the eight rods, the flexible net is difficult to fit the rock surface, causing sagging of the flexible net;

[0007] (2) In the process of punching the anchor rod, the eight rods of the mechanical arm and the mechanical arm itself affect the construction of the anchor rod mechanical arm, causing poor efficiency of the anchor rod construction.

[0008] Finally, the flexible net laying in the tunnel is time-consuming and has poor laying effect, and it is difficult to fully play the advantages of the flexible net, such as light weight and good energy absorption effect. SUMMARY

[0009] The purpose of the present invention is to provide a roller-type flexible protective net laying device to solve the problems existing in the above-mentioned prior art, so as to make the flexible protective net have good fit and high laying efficiency, and give full play to the performance advantages of the flexible protective net.

[0010] To achieve the above object, the present invention provides the following solutions:

[0011] The present invention provides a roller-type flexible protective net laying device, comprising a support frame, a net laying mechanism and a pressing mechanism; the support frame is used to be connected to the mechanical arm of the anchor net integrated machine; the net laying mechanism comprises a roller and a flexible protective net wound on the roller; the roller is arranged on the support frame to rotate around a first axis, and the first axis is coaxial with the axis of the roller; the width direction of the flexible protective net is a first direction, and the length direction of the flexible protective net is a second direction, and the first direction is parallel to the first axis; a plurality of bonding point groups are fixedly provided on the side of the flexible protective net close to the laying surface, The bonding point group includes a plurality of adhesive capsules, each of which contains an adhesive substance for bonding to the paving surface, and the adhesive capsules can break and flow out the adhesive substance under the action of external force; each of the bonding point groups is arranged in sequence along the second direction, and each of the adhesive capsules of the bonding point group is arranged in sequence along the first direction; the pressing mechanism includes a plurality of pressing components, each of which is arranged in sequence along the first direction on the support frame; the pressing component has a telescopic end that can be extended and retracted, and the telescopic end can press against the side of the flexible protective net away from the paving surface.

[0012] Preferably, the adhesive point group includes an adhesive strip, and each of the adhesive capsules is fixedly arranged on the adhesive strip in sequence along the first direction; the adhesive strip is fixedly arranged on a side of the flexible protective net close to the paving surface.

[0013] Preferably, a pressure plate mechanism is also provided on the support frame, and the pressure plate mechanism includes a retractable rubber pressing plate; the rubber pressing plate is located on the side of the pressing mechanism away from the roller; the rubber pressing plate is located on the side of the flexible protective net away from the paving surface, and the rubber pressing plate can correspond one-to-one to each of the rubber storage strips; and the rubber pressing plate can squeeze and break each of the adhesive capsules on the rubber storage strip.

[0014] Preferably, the adhesive strip is flexible, and an elastic layer is fixedly provided on a side of the adhesive pressing plate close to the flexible protective net, and the elastic layer can be elastically deformed.

[0015] Preferably, a connecting joint is fixedly provided on the support frame, and the connecting joint is used to be connected to the mechanical arm of the anchor net integrated machine.

[0016] Preferably, the rotation of the roller around the first axis has a damping force, and the damping force is opposite to the direction in which the flexible protective net is spread out from the roller.

[0017] Preferably, in the second direction, the width of the glue pressing plate is greater than the width of the glue storage strip.

[0018] Preferably, a pressing wheel is rotatably provided at the distal end of the telescopic end of the pressing assembly, and the pressing wheel is used for rolling contact with a side of the flexible protective net away from the paving surface.

[0019] Preferably, a U-shaped frame is fixedly provided on the support frame, and two opposite mounting holes are provided on the U-shaped frame. The ends of the rollers respectively pass through and extend out of the corresponding mounting holes, and the ends of the rollers are provided with limiting members, which are used to limit the ends of the rollers from escaping from the mounting holes.

[0020] Preferably, the adhesive material is a pressure-sensitive adhesive.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] The roller-type flexible protective net laying device provided by the present invention adopts a flexible protective net with adhesive capsules. When the adhesive capsules are broken under the action of external force, the adhesive material flowing out can adhere the flexible protective net to the laying surface, so as to achieve temporary fixation of the flexible protective net on the laying surface, and then the anchor rods can be laid, avoiding the mutual interference between the anchor rod mechanical arm and the laying mechanical arm during the laying process, resulting in a long time consumption and low laying efficiency; and a plurality of retractable pressing components are provided, which can squeeze the flexible protective net when the flexible protective net is rolled and laid. Make it closer to the paving surface and improve the fit of the flexible protective net; when laying the flexible protective net, the starting end of the flexible protective net can be fixed to the paving surface by an adhesive material, and then the flexible protective net can be partially pressed against the paving surface through a pressing mechanism, and then the adhesive capsules on the flexible protective net in the pressed part are broken and the corresponding positions are bonded to the paving surface, and so on, the flexible protective net is gradually bonded to the paving surface to ensure the tight laying effect of the flexible protective net and give full play to the performance advantages of the flexible protective net.

[0023] Furthermore, the provision of the adhesive strips facilitates the placement of the adhesive capsules on the flexible protective net, thereby improving the production efficiency of the flexible protective net.

[0024] Further, the pressing plate mechanism can cooperate with the pressing mechanism to control the tightness of the flexible protective net on the laying surface, and then the elastic pressing plate can crush the adhesive capsules on the adhesive strip on the flexible protective net, so as to realize the tightness and fixation of the flexible protective net, and improve the tightness of the flexible protective net.

[0025] Further, the adhesive strip is flexible, which can keep the flexible protective net with the adhesive strip in good contact with the laying surface; and the elastic layer on the pressing plate can deform under the same extrusion force to extrude the adhesive capsules close to the corresponding position on the laying surface, so as to make the adhesive capsules at each position contact the corresponding position on the laying surface more fully, improve the adhesive fixation effect, and increase the tightness between the corresponding position of the flexible protective net and the laying surface.

[0026] Further, the connecting joint can be conveniently connected with the anchor net integrated machine to improve the disassembly and assembly efficiency.

[0027] Further, the damping force of the roller can make the flexible protective net have a certain tension when it is laid out from the roller, so as to improve the tightness of the flexible protective net.

[0028] Further, the width of the pressing plate is greater than the width of the adhesive strip, which can prevent the pressing plate from being unable to position the adhesive strip well, and improve the pressing precision.

[0029] Further, the pressing wheel is rolled on the flexible protective net to make it close to the laying surface, which can continuously extrude the flexible protective net during the laying of the flexible protective net (i.e. forming a roller type, extruding the flexible protective net while rolling), improving the tightness of the flexible protective net and the laying surface; and the rolling contact between the pressing wheel and the flexible protective net can reduce the friction between them and reduce the wear of the flexible protective net.

[0030] Further, the roller is connected to the support frame through the mounting hole of the U-shaped frame, and the end is stably connected to the U-shaped frame through the limiting piece, which has a simple structure and is convenient to install, disassemble and process.

[0031] Furthermore, pressure-sensitive adhesive is used as the bonding material between the flexible protective net and the paving surface, which is common and easy to obtain; and the pressure-sensitive adhesive can form a continuous and strong adhesion on the contact surface, ensuring that the flexible protective net can fit tightly on the paving surface and is not easy to fall off or shift; and the pressure-sensitive adhesive has good water resistance, solvent resistance, temperature resistance and corrosion resistance, and can be used for protection work under various climatic conditions, effectively preventing the reduction of adhesion due to environmental changes, thereby extending the service life of the flexible protective net. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the overall structure of the roller-type flexible protective net laying device provided by the present invention;

[0034] Figure 2 This is a structural schematic diagram of the roller-type flexible protection net laying device provided by the present invention without the flexible protection net;

[0035] Figure 3 A schematic diagram of the structure of the flexible protective net in the roller-type flexible protective net laying device provided by the present invention;

[0036] Figure 4 A schematic diagram of laying a flexible protective net in the drum-type flexible protective net laying device provided by the present invention;

[0037] Figure 5 This is a schematic diagram of the position changes of the pressing mechanism and the pressing plate mechanism during the laying process of the roller-type flexible protective net laying device provided by the present invention.

[0038] In the picture:

[0039] 100-Roller type flexible protective net laying device;

[0040] 10-support frame; 11-U-shaped frame; 12-connecting rod; 13-second gasket; 14-second nut;

[0041] 20 - net laying mechanism; 21 - roller; 211 - first gasket; 212 - first nut; 22 - flexible protective net; 221 - adhesive capsule; 222 - adhesive storage strip;

[0042] 30-pressing mechanism; 31-pressing wheel; 32-first telescopic mechanism;

[0043] 40-pressing plate mechanism; 41-rubber pressing plate; 42-second telescopic mechanism. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] The purpose of the present invention is to provide a roller-type flexible protective net laying device to solve the problems existing in the prior art, so as to make the flexible protective net have good fit, high laying efficiency, and give full play to the performance advantages of the flexible protective net.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Example 1

[0048] This embodiment provides a roller-type flexible protection net laying device 100, which is mainly used, but not limited to, for laying flexible protection nets 22 in rock burst tunnels. Figures 1 to 5 As shown, it includes a support frame 10, a net laying mechanism 20 and a pressing mechanism 30; the support frame 10 is used to be connected to the mechanical arm of the anchor net integrated machine; the net laying mechanism 20 includes a roller 21 and a flexible protective net 22 wound on the roller 21; the roller 21 is rotatably arranged on the support frame 10 around a first axis, and the first axis is coaxial with the axis of the roller 21; the width direction of the flexible protective net 22 is the first direction, the length direction of the flexible protective net 22 is the second direction, and the first direction is parallel to the first axis; a plurality of bonding point groups are fixedly provided on the side of the flexible protective net 22 close to the laying surface, The bonding point group includes a plurality of adhesive capsules 221, which contain adhesive substances for bonding to the paving surface, and the adhesive capsules 221 can break and flow out the adhesive substances under the action of external force; each bonding point group is arranged in sequence along the second direction, and each adhesive capsule 221 of the bonding point group is arranged in sequence along the first direction; the pressing mechanism 30 includes a plurality of pressing components, and each pressing component is arranged in sequence along the first direction on the support frame 10; the pressing component has a telescopic end that can be extended and retracted, and the telescopic end can press against the side of the flexible protective net 22 away from the paving surface.

[0049] By using the flexible protective net 22 of the adhesive capsule 221, the adhesive material flowing out when the adhesive capsule 221 ruptures under the action of external force can adhere the flexible protective net 22 to the paving surface, so as to achieve temporary fixation of the flexible protective net 22 on the paving surface, and then the anchor rods can be laid, avoiding the interference between the anchor rod mechanical arm and the paving mechanical arm during the paving process, resulting in a long time and low paving efficiency; and a plurality of retractable pressing components are provided, which can squeeze the flexible protective net 22 when the flexible protective net 22 is rolled and laid, so that it is closer to the paving surface, thereby improving flexibility. The fit of the protective net 22; when laying the flexible protective net 22, the starting end of the flexible protective net 22 can be first fixed to the paving surface by an adhesive material, and then the flexible protective net 22 can be partially pressed against the paving surface by the pressing mechanism 30, and then the adhesive capsules 221 on the pressed part of the flexible protective net 22 are broken and the corresponding positions are bonded to the paving surface, and so on, the flexible protective net 22 is gradually bonded to the paving surface to ensure the tight laying effect of the flexible protective net 22 and give full play to the performance advantages of the flexible protective net 22.

[0050] Among them, the relevant structural setting description of the support frame 10 is as follows:

[0051] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, a connecting joint is fixedly provided on the support frame 10, and the connecting joint is used to connect to the mechanical arm of the anchor net integrated machine. The setting of the connecting joint can make it convenient to connect and use with the anchor net integrated machine, and improve the efficiency of disassembly and assembly.

[0052] Specifically, the connecting joint includes a connecting rod 12, a second gasket 13 and a second nut 14. The second gasket 13 is provided with a second through-hole, and the support frame 10 is provided with a mounting through-hole. After one end of the connecting rod 12 is fixedly passed through the mounting through-hole and extends out of the mounting through-hole, the second gasket 13 is first passed through it, and then the second nut 14 is threadedly connected to the external thread provided at the end of the connecting rod 12 to realize the fixed connection between the connecting rod 12 and the support frame 10. The other end of the connecting rod 12 is used to be connected to the mechanical arm of the anchor net all-in-one machine.

[0053] Among them, the relevant structural setting description of the flexible protective net 22 is as follows:

[0054] Among the optional solutions of this embodiment, it is more preferred that Figure 1 、 Figure 3 and Figure 4As shown, the adhesive point group includes an adhesive strip 222, on which adhesive capsules 221 are sequentially fixed along a first direction. The adhesive strip 222 is fixedly positioned on the side of the flexible protective net 22 closest to the paving surface. The placement of the adhesive strip 222 facilitates the placement of the adhesive capsules 221 on the flexible protective net 22, improving the production efficiency of the flexible protective net 22.

[0055] Among the optional solutions of this embodiment, the preferred adhesive is a pressure-sensitive adhesive. Pressure-sensitive adhesive is commonly available as the bonding material between the flexible protective net 22 and the paving surface. It can form a sustained and strong adhesion force on the contact surface, ensuring that the flexible protective net 22 adheres tightly to the paving surface and is not easily dislodged or shifted. Furthermore, the pressure-sensitive adhesive has excellent water resistance, solvent resistance, temperature resistance, and corrosion resistance, making it suitable for protective work in various climates. It effectively prevents adhesion loss due to environmental changes, thereby extending the service life of the flexible protective net 22.

[0056] Specifically, the anchoring position of the anchor rod on the flexible protective net 22 can be as follows Figure 4 The positions shown can be set, and the positions and quantities can also be reasonably set according to actual conditions.

[0057] Among them, the relevant structural settings of the web laying mechanism 20 are described as follows:

[0058] In an alternative solution of this embodiment, preferably, the rotation of the roller 21 about the first axis generates a damping force, and the damping force is opposite to the direction in which the flexible protective net 22 is unrolled from the roller 21. The damping force of the roller 21 can ensure a certain degree of tension in the flexible protective net 22 when it is unrolled from the roller 21, thereby improving the tight-fitting laying effect of the flexible protective net 22.

[0059] Specifically, the damping force may be achieved by using a damping rotating shaft component, or any other existing component or setting method that can provide the damping force.

[0060] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, a U-shaped frame 11 is fixedly mounted on the support frame 10. The U-shaped frame 11 is provided with two opposing mounting holes. The ends of the roller 21 extend through and out of the corresponding mounting holes. Each end of the roller 21 is provided with a limiter to prevent the end of the roller 21 from escaping from the mounting hole. The roller 21 is connected to the support frame 10 through the mounting hole of the U-shaped frame 11, and the end is maintained in a stable connection to the U-shaped frame 11 by the limiter. The structure is simple and easy to install, disassemble, and process.

[0061] Specifically, the limiting member includes a first washer 211 and a first nut 212. The first washer 211 is provided with a first through hole, and the end portion of the roller 21 extending out of the mounting hole is arranged in the first through hole. The first nut 212 on the outer side of the first washer 211 is threadedly connected with the external thread arranged on the end portion of the roller 21.

[0062] Among them, the related structure of the pressing mechanism 30 is described as follows:

[0063] In an optional solution of the embodiment, preferably, as shown in Figure 1 、 Figure 2 and Figure 5 , the end of the telescopic end of the pressing assembly is rotatably provided with a pressing wheel 31. The pressing wheel 31 is used to rollingly contact the side of the flexible protective net 22 away from the laying surface. The pressing wheel 31 is pressed on the flexible protective net 22 in a rolling manner, so that the flexible protective net 22 is tightly attached to the laying surface. When the flexible protective net 22 is laid, the pressing wheel 31 can continuously press the flexible protective net 22 (i.e., in a rolling cylinder type, the flexible protective net 22 is tightly pressed while rolling), thereby improving the tightness of the flexible protective net 22 to the laying surface. In addition, the pressing wheel 31 is in rolling contact with the flexible protective net 22, which can reduce the contact friction between the pressing wheel 31 and the flexible protective net 22, thereby reducing the wear of the flexible protective net 22.

[0064] Specifically, the pressing assembly is a first telescopic mechanism 32. The telescopic end of the first telescopic mechanism 32 is rotatably connected with the pressing wheel 31. Each first telescopic mechanism 32 can be independently telescoped.

[0065] Specifically, the first telescopic mechanism 32 is any existing telescopic device, which will not be described here.

[0066] Among them, the related structure of the pressing mechanism 30 is described as follows:

[0067] In an optional solution of the embodiment, preferably, as shown in Figure 1 、 Figure 2 and Figure 5As shown, a pressure plate mechanism 40 is also provided on the support frame 10, and the pressure plate mechanism 40 includes a retractable rubber pressing plate 41; the rubber pressing plate 41 is located on the side of the pressing mechanism 30 away from the roller 21; the rubber pressing plate 41 is located on the side of the flexible protective net 22 away from the paving surface, and the rubber pressing plate 41 can correspond one-to-one to each rubber strip 222; and the rubber pressing plate 41 can squeeze and break each adhesive capsule 221 on the rubber strip 222. The setting of the pressure plate mechanism 40 can be operated in conjunction with the pressing mechanism 30. First, the pressing mechanism 30 is used to control the degree of close contact of the flexible protective net 22 to be laid on the laying surface, and then the retractable pressing plate 41 is used to squeeze and break the adhesive capsules 221 on the adhesive strip 222 on the flexible protective net 22 that is close to the surface, so as to achieve the effect of close contact and fixation of the flexible protective net 22, thereby improving the laying close contact effect of the flexible protective net 22; and the set pressing plate 41 can correspond one-to-one with the adhesive strip 222, thereby improving the pressing effect.

[0068] In the optional solution of this embodiment, it is more preferred that the adhesive strip 222 is flexible, and an elastic layer is fixedly provided on the side of the adhesive pressing plate 41 close to the flexible protective net 22, and the elastic layer is capable of elastic deformation. The adhesive strip 222 is configured to be flexible, which can ensure that the flexible protective net 22 at the location where the adhesive strip 222 is provided still maintains a good close contact effect with the paving surface; and the elastic layer provided on the adhesive pressing plate 41 can, under the action of the same extrusion force, elastically deform and squeeze the adhesive capsules 221221 close to the corresponding position on the paving surface, so that the adhesive capsules 221221 at each position are more fully in contact with the corresponding position on the paving surface, thereby improving the adhesive fixing effect; and it can also increase the close contact effect between the flexible protective net 22 at the corresponding position and the paving surface.

[0069] Specifically, the elastic layer may include but is not limited to a rubber layer.

[0070] Specifically, the glue pressing plate 41 can also be set to be able to elastically deform itself, and a second telescopic mechanism 42 is respectively provided at the position corresponding to each adhesive capsule 221 on the glue pressing plate 41. The telescopic end of each second telescopic mechanism 42 is fixedly connected to the glue pressing plate 41, and each second telescopic mechanism 42 can be independently telescopic.

[0071] Specifically, the second telescopic mechanism 42 is any existing telescopic device, which will not be described in detail here.

[0072] In an alternative solution of this embodiment, preferably, in the second direction, the width of the adhesive pressing plate 41 is greater than the width of the adhesive storage strip 222. Setting the width of the adhesive pressing plate 41 to be greater than the width of the adhesive storage strip 222 prevents the adhesive pressing plate 41 from being unable to properly position the adhesive storage strip 222, thereby improving the accuracy of the crimping.

[0073] Specifically, the width of the glue pressing plate 41 can be set to be 3 to 4 times the width of the glue storage strip 222 .

[0074] Among them, regarding other related instructions:

[0075] Specifically, the roller-type flexible protective net laying device 100 of this embodiment is installed on an anchor net integrated machine for use, wherein the pressing mechanism 30, the pressure plate mechanism 40 and other related control components can be connected to the control system of the anchor net integrated machine, thereby improving the level of intelligent and automated control, and realizing efficient and fast unmanned and mechanized laying of the flexible protective net 22, thereby reducing the loss of life and property during rock bursts.

[0076] Specifically, the connecting joint on the support frame 10 is used to be connected to the arm of the anchor net integrated machine.

[0077] Specific usage instructions:

[0078] Step 1: prefabricate a flexible protective net 22 having adhesive strips 222 and adhesive capsules 221: Figure 3 and Figure 4 As shown, a glue strip 222 is arranged every 1000 mm of the flexible protective net 22; the glue strip 222 is fixed together with the flexible protective net 22 in advance in the factory to form a unified whole; a plurality of adhesive capsules 221 are arranged on each glue strip 222; after prefabrication, it is packed into rolls and transported to the construction site.

[0079] Step 2: Connect the roller-type flexible protective net laying device 100 to the anchor net integrated machine arm through the connecting joint, place the flexible protective net 22 prefabricated in step 1 on the roller 21, and reserve a certain length at the starting end of the flexible protective net 22 in advance so that it hangs in front of the pressing mechanism 30 and the pressure plate mechanism 40.

[0080] Step three: Use the arm of the anchor-net integrated machine to drive the roller-type flexible protection net laying device 100 to move, and place the flexible protection net 22 as close to the rock surface of the tunnel as possible to complete the preparation work.

[0081] Step 4: Figure 5 As shown, each first telescopic mechanism 32 drives the pressing wheel 31 to extend, so that the pressing wheel 31 applies pressure to the flexible protective net 22, so that it completely fits the rock surface; then the pressing plate 41 of the pressure plate mechanism 40 is extended to squeeze the corresponding adhesive strip 222, and the pressure-sensitive adhesive capsules on the adhesive strip 222 are squeezed. The pressure-sensitive adhesive bonds the flexible protective net 22 and the tunnel rock surface, completing the temporary fixation of the flexible protective net 22 at this position.

[0082] Step five, retract and restore the pressing wheels 31 and the rubber pressing plates 41 to their original positions, move the robotic arm, and continue to lay the flexible protective net 22 along the rock surface of the tunnel through the roller 21 of the flexible protective net 22, and repeat the operations of steps three to five to complete the laying and temporary fixing of the flexible protective net 22 from the tunnel arch waist, arch shoulder to the arch top.

[0083] Step six: retract the roller-type flexible protection net laying device 100 and apply anchor rods to finally fix the flexible protection net 22.

[0084] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A roller-type flexible protective net laying device, characterized by: It includes a support frame, a net laying mechanism and a pressing mechanism; The support frame is used to be connected to the mechanical arm of the anchor net integrated machine; The net laying mechanism includes a roller and a flexible protective net wound on the roller; the roller is rotatably arranged on the support frame around a first axis, and the first axis is coaxial with the axis of the roller; the width direction of the flexible protective net is a first direction, and the length direction of the flexible protective net is a second direction, and the first direction is parallel to the first axis; a plurality of bonding point groups are fixedly provided on a side of the flexible protective net close to the paving surface, and the bonding point groups include a plurality of adhesive capsules, the adhesive capsules contain an adhesive material for bonding to the paving surface, and the adhesive capsules can be broken under the action of an external force to discharge the adhesive material; The bonding point groups are arranged in sequence along the second direction, and the adhesive capsules of the bonding point groups are arranged in sequence along the first direction; The pressing mechanism includes a plurality of pressing components, each of which is arranged in sequence on the support frame along the first direction; the pressing component has a telescopic end that can be extended and retracted, and the telescopic end can press against the side of the flexible protective net away from the paving surface.

2. The roller-type flexible protective net laying device according to claim 1, characterized in that: The adhesive point group includes an adhesive strip, and each of the adhesive capsules is fixedly arranged on the adhesive strip in sequence along the first direction; the adhesive strip is fixedly arranged on a side of the flexible protective net close to the paving surface.

3. The roller-type flexible protective net laying device according to claim 2, characterized in that: The support frame is also provided with a pressing plate mechanism, which includes a retractable pressing plate; The glue pressing plate is located on the side of the pressing mechanism away from the roller; the glue pressing plate is located on the side of the flexible protective net away from the paving surface; the glue pressing plate can correspond one-to-one to each of the glue storage strips; and the glue pressing plate can squeeze and break each of the adhesive capsules on the glue storage strips.

4. The roller-type flexible protective net laying device according to claim 3, characterized in that: The adhesive strip is flexible, and an elastic layer is fixedly provided on one side of the adhesive pressing plate close to the flexible protective net, and the elastic layer can be elastically deformed.

5. The roller-type flexible protective net laying device according to claim 1, characterized in that: A connecting joint is fixedly provided on the support frame, and the connecting joint is used to be connected to the mechanical arm of the anchor net integrated machine.

6. The roller-type flexible protective net laying device according to claim 1, characterized in that: The rotation of the roller around the first axis has a damping force, and the damping force is opposite to the direction in which the flexible protective net is spread out from the roller.

7. The roller-type flexible protective net laying device according to claim 3, characterized in that: In the second direction, the width of the glue pressing plate is greater than the width of the glue storage strip.

8. The roller-type flexible protective net laying device according to claim 1, characterized in that: A pressing wheel is rotatably provided at the end of the telescopic end of the pressing assembly, and the pressing wheel is used for rolling contact with the side of the flexible protective net away from the paving surface.

9. The roller-type flexible protective net laying device according to claim 1, characterized in that: A U-shaped frame is fixedly provided on the support frame, and two opposite mounting holes are provided on the U-shaped frame. The ends of the rollers pass through and extend out of the corresponding mounting holes respectively, and the ends of the rollers are provided with limiting members, which are used to limit the ends of the rollers from escaping from the mounting holes.

10. The roller-type flexible protective net laying device according to claim 1, characterized in that: The adhesive material is a pressure-sensitive adhesive.

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