Segment assembling equipment and tunnel rescue channel tunneling system

Abstract

The utility model belongs to the technical field of rescue devices of mines or tunnels, and particularly provides duct piece assembling equipment and a tunnel rescue channel tunneling system. The segment assembling equipment comprises an assembling trolley, and a segment assembling mechanism is arranged at the front end of the assembling trolley and comprises an execution element. The execution element is provided with a quick connector used for being connected with a power device of a jacking machine head of the tunneling system of the tunnel rescue channel, or the assembled vehicle is provided with an independent power device for providing power for the execution element. The tunneling system comprises the duct piece assembling equipment. Compared with the prior art, the duct piece assembling equipment can automatically assemble duct pieces while tunneling a rescue channel, so that the labor intensity of rescue firefighters is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of rescue devices for mines or tunnels, and particularly relates to segment assembly equipment and a tunnel rescue channel excavation system. Background Art

[0002] Tunnel collapse, especially tunnel collapse accidents, is one of the main risks in the tunnel construction process. After the accident occurs, the rescue of trapped people needs to be completed quickly. During the rescue, the collapsed soil needs to be excavated to form a rescue channel. At present, there are two commonly used methods for excavating rescue channels, one is the small pilot pit method, and the other is the jacking method. The small pilot pit method is to excavate a small pilot pit with a triangular or trapezoidal cross-section in the loose collapsed body, and use a temporary support method of wooden boards. There is a problem of insufficient support stability. The excavation speed of the jacking method is slow and the rescue efficiency is not high.

[0003] The Chinese patent document with application publication number CN114033477A (publication date: 2022.02.11) discloses a safe rescue method, in which a self-propelled rescue channel safety rescue equipment is used, which includes a jacking reaction frame, a jacking head, a jacking track, etc., wherein the jacking head includes a tubular casing (shield), an annular slide (top ring), four hydraulic jacks (jacking cylinders), a hydraulic pump station, etc. The front end of the tubular casing is a beveled pipe mouth, and the two ends of the hydraulic jack are respectively connected between the tubular casing and the annular slide, and the hydraulic pump station provides hydraulic power for the telescopic movement of the hydraulic jack. When the equipment starts, the jacking reaction frame provides reaction force support for the forward advancement of the tubular casing. Under the action of the hydraulic jack, the tubular casing can be advanced forward and inserted into the soil in front, and the rescue personnel perform excavation operations in the tubular casing. As the excavation progresses, a ring of supporting segments needs to be assembled at the rear after each excavation stroke to form a rescue channel.

[0004] The above patent document does not disclose how to assemble the segments. In fact, unlike the shield machine, the shield shell of the shield machine is a closed structure, and its tail is connected to a supporting main beam, on which a segment assembly mechanism is provided. For example, the segment assembly machine provided in the patent document with application publication number CN117167052A of the applicant, the segment assembly mechanism is equipped with multiple hydraulic cylinders, a rotary drive motor, a segment grabbing structure for grabbing segments, etc., which can automatically grab the segments and push them to the assembly position. However, the above rescue channel excavation system is actually still manually excavated collapsed soil, and the shield shell does not have a foundation for installing a segment assembly mechanism, making it difficult to achieve automatic grabbing and assembly of the segments.

[0005] The applicant found in the investigation that, at present, during tunnel rescue, the pipe segment assembly operation is still manually assembled by rescue firefighters. When the pipe segment is transported to the assembly location, the rescue personnel lift the pipe segment and send it to the assembly location, and then fix the connecting bolts. It is not difficult to understand that this manual assembly method will increase the labor intensity of rescue firefighters, especially in landslide accidents with deeper burial depths. In order to ensure the support stability of the rescue channel, the pipe segment will use high-strength materials such as manganese steel. The weight of a single pipe segment can reach more than 30 kilograms, which further increases the labor intensity of rescue firefighters. Utility Model Content

[0006] The purpose of the utility model is to provide a segment assembly device to solve the technical problem of high labor intensity caused by manual segment assembly during tunneling of a tunnel rescue channel in the prior art. The purpose of the utility model is also to provide a tunnel rescue channel excavation system to solve the same technical problem.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the segment assembly equipment provided by the utility model is:

[0008] A pipe segment assembly device comprises an assembly vehicle, a pipe segment assembly mechanism is provided at the front end of the assembly vehicle, and the pipe segment assembly mechanism comprises an actuator; the actuator is equipped with a quick-connect connector for connecting to a jacking head power device of a tunnel rescue channel excavation system, or the assembly vehicle is provided with an independent power device for providing power to the actuator.

[0009] As a further improvement, the assembly vehicle is also provided with a slag bucket for storing slag.

[0010] As a further improvement, the segment assembly mechanism is arranged on the bucket wall of the slag bucket.

[0011] As a further improvement, the segment assembly mechanism includes a mounting seat, a rotating device is provided on the mounting seat, the actuator includes an assembly cylinder, the power device is a hydraulic pump station, the assembly cylinder is installed on the rotating body of the rotating device, and the assembly cylinder extends radially along the rotating device, and one end of the assembly cylinder is provided with a grabbing structure for grabbing the segment.

[0012] As a further improvement, the grabbing piece structure includes a first pin hole arranged on the piston rod of the assembled cylinder, or a guide seat and a support column guided by the guide seat are provided on the rotating body, one end of the assembled cylinder is connected to the support column, and the grabbing piece structure includes a first pin hole arranged on the support column; the grabbing piece structure also includes a connecting pin shaft for passing through the first pin hole and a second pin hole arranged at a corresponding position on the pipe segment to connect the pipe segment and the assembled cylinder.

[0013] As a further improvement, the grabbing piece structure further comprises a pipe piece connecting seat for connecting the pipe pieces, and the pipe piece connecting seat is provided with the second pin hole.

[0014] As a further improvement, a stud is provided at one end of the pipe segment connecting seat, and the stud is used to connect with a threaded hole opened on the pipe segment.

[0015] As a further improvement, the rotary device includes a rotary drive device, and the actuator also includes a rotary motor forming the rotary drive device.

[0016] As a further improvement, the segment assembly mechanism is installed on the assembly vehicle via detachable connectors.

[0017] The beneficial effect is: the utility model pioneers an independent segment assembly device that can be used for tunneling rescue channels. When tunneling (excavating) the rescue channel, the assembly vehicle can move from the back to the front, driving the segment assembly mechanism to move to the position where the segments need to be assembled. When assembling the segments, the power device configured on the jacking head or the power device on the assembly vehicle can provide source power for the actuator, and the actuator can drive the segments to the assembly position to automatically complete the assembly. Compared with the prior art, the segment assembly device in the utility model can automatically assemble the segments while tunneling the rescue channel, reducing the labor intensity of rescue firefighters.

[0018] In order to achieve the above-mentioned purpose, the technical solution of the tunnel rescue channel excavation system provided by the utility model is:

[0019] A tunnel rescue channel excavation system includes segment assembly equipment, the segment assembly equipment includes an assembly vehicle, a segment assembly mechanism is provided at the front end of the assembly vehicle, the segment assembly mechanism includes an actuator; the actuator is equipped with a quick-connect connector for connecting to a jacking head power device of the tunnel rescue channel excavation system, or the assembly vehicle is provided with an independent power device for providing power to the actuator.

[0020] As a further improvement, the assembly vehicle is also provided with a slag bucket for storing slag.

[0021] As a further improvement, the segment assembly mechanism is arranged on the bucket wall of the slag bucket.

[0022] As a further improvement, the segment assembly mechanism includes a mounting seat, a rotating device is provided on the mounting seat, the actuator includes an assembly cylinder, the power device is a hydraulic pump station, the assembly cylinder is installed on the rotating body of the rotating device, and the assembly cylinder extends radially along the rotating device, and one end of the assembly cylinder is provided with a grabbing structure for grabbing the segment.

[0023] As a further improvement, the grabbing piece structure includes a first pin hole arranged on the piston rod of the assembled cylinder, or a guide seat and a support column guided by the guide seat are provided on the rotating body, one end of the assembled cylinder is connected to the support column, and the grabbing piece structure includes a first pin hole arranged on the support column; the grabbing piece structure also includes a connecting pin shaft for passing through the first pin hole and a second pin hole arranged at a corresponding position on the pipe segment to connect the pipe segment and the assembled cylinder.

[0024] As a further improvement, the grabbing piece structure further comprises a pipe piece connecting seat for connecting the pipe pieces, and the pipe piece connecting seat is provided with the second pin hole.

[0025] As a further improvement, a stud is provided at one end of the pipe segment connecting seat, and the stud is used to connect with a threaded hole opened on the pipe segment.

[0026] As a further improvement, the rotary device includes a rotary drive device, and the actuator also includes a rotary motor forming the rotary drive device.

[0027] As a further improvement, the segment assembly mechanism is installed on the assembly vehicle via detachable connectors.

[0028] The beneficial effect is that the utility model improves the tunnel rescue channel excavation system. When excavating (digging) the rescue channel, the assembly vehicle can move from the back to the front, driving the pipe segment assembly mechanism to move to the position where the pipe segments need to be assembled. When assembling the pipe segments, the power device configured on the jacking head or the power device on the assembly vehicle can provide source power for the actuator, and the actuator can drive the pipe segments to the assembly position to automatically complete the assembly. Compared with the prior art, the pipe segment assembly equipment in the utility model can automatically assemble the pipe segments while excavating the rescue channel, reducing the labor intensity of the rescue firefighters. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an embodiment of a tunnel rescue channel excavation system in the utility model;

[0030] Figure 2 for Figure 1 Front view of the middle segment assembly equipment;

[0031] Figure 3 for Figure 1 Schematic diagram of the state of the middle segment assembly equipment when assembling the top segment;

[0032] Figure 4 for Figure 1 Schematic diagram of the state of the middle segment assembly equipment when assembling the side segments;

[0033] Figure 5 for Figure 2 Structural diagram of the matching position of the middle assembly cylinder and the box-type segment;

[0034] Figure 6 for Figure 2 Structural schematic diagram of the coordination position of the assembled cylinder and single-layer pipe segment.

[0035] Description of reference numerals:

[0036] 1. Shield shell; 2. Push cylinder; 3. Push ring; 4. Segment assembly mechanism; 5. Assembly vehicle; 6. Pipe joint; 7. Reaction frame; 401. Assembly cylinder; 402. Rotating body; 403. Rotating motor; 404. Connecting flange; 405. Segment connecting seat; 406. Connecting pin; 501. Slag bucket; 601. Box-type segment; 602. Single-layer segment; 603. Segment hole seat. DETAILED DESCRIPTION

[0037] When the self-propelled tunnel rescue channel equipment is pushed forward, it is necessary to assemble pipe segments at the rear of the shield to form a ring of pipe segments. The pipe segments can not only provide reaction force support for the equipment to continue to push forward, but also directly form a rescue channel. At present, in actual application, the assembly of pipe segments is still done manually by rescue firefighters. During the assembly, one or two people lift the pipe segments and push them to the assembly position, which will bring a large workload to the rescue firefighters.

[0038] In order to solve the above problems, the basic technical concept of the utility model is to provide a pipe segment assembly equipment that can move to the pipe segment assembly position and can drive the pipe segment to the assembly position. Specifically, the pipe segment assembly equipment includes an assembly vehicle and a pipe segment assembly mechanism provided on the assembly vehicle. The pipe segment assembly mechanism is equipped with a movable actuator, which can drive the pipe segment to the assembly position. In this way, when assembling the pipe segments, the rescue firefighters no longer need to manually lift the pipe segments, thereby reducing the labor intensity of the rescue firefighters.

[0039] The present invention is further described in detail below in conjunction with the embodiments.

[0040] Specific embodiments of the tunnel rescue channel excavation system provided by the utility model:

[0041] The tunnel rescue channel excavation system provided in this embodiment is as follows: Figure 1As shown, the whole can be divided into three parts, namely the jacking head in the front, the pipe section 6 in the middle, and the reaction frame 7 in the rear. When excavating the rescue channel, the position of the reaction frame 7 does not move, the jacking head continues to push forward, and the pipe section 6 also continues to extend forward until the rescue channel is opened. Specifically, the jacking head includes components such as a shield shell 1, a jacking cylinder 2, a top ring 3, and a hydraulic pump station (not shown in the figure) that provides power for the jacking cylinder 2. The jacking cylinder 2, the top ring 3, and the hydraulic pump station are all arranged inside the shield shell 1. One end of the jacking cylinder 2 is connected to the shield shell 1, and the other end is connected to the top ring 3. In the initial stage of the equipment, the jacking cylinder 2 extends out, and the top ring 3 can push the reaction frame 7 or the support ring arranged on the reaction frame 7, thereby pushing the shield shell 1 forward to insert into the collapsed soil, and the rescue firefighters can use excavation tools (shovels, impact picks, impact drills, etc.) and other tools to excavate the soil inside the shield shell 1. For each excavation stroke, multiple pipe segments need to be assembled at the rear of the top ring 3 to form a pipe segment 6. The specific rescue process may be consistent with the content disclosed in the patent document with application publication number CN114033477A, ​​and will not be described in detail herein.

[0042] As 1 and Figure 2 As shown, the tunnel rescue channel excavation system in this embodiment is equipped with a segment assembly device. The segment assembly device includes an assembly vehicle 5 and a segment assembly mechanism 4 provided at the front end of the assembly vehicle 5. The assembly vehicle 5 is equipped with a walking mechanism, which can roll (walking wheels) or slide (slider) along the inside of the pipe section 6, so that the assembly vehicle 5 can drive the segment assembly mechanism 4 to move forward to the position where the segment needs to be assembled. The segment assembly mechanism 4 refers to a mechanism that can grab the segment that has been transported to the location and push the segment to the assembly position.

[0043] In order to improve the stability of the segment assembly process, the segment assembly mechanism 4 preferably uses a hydraulic actuator. In this way, by setting up the segment assembly equipment, the segments can be automatically assembled during the excavation of the tunnel rescue channel, reducing the workload of the rescue firefighters.

[0044] Since the segment assembly mechanism 4 includes a hydraulic actuator, the hydraulic actuator needs to be connected to an external hydraulic pump station during assembly. This embodiment provides two specific implementations, one of which is to configure a quick-connect joint on the hydraulic actuator. When in use, the hydraulic pipeline can be connected through the quick-connect joint and connected to the hydraulic pump station of the top tightening machine head. At this time, the hydraulic pump station of the top tightening machine head is equivalent to a power unit; the other is to configure an independent hydraulic pump station (power unit) on the assembly vehicle 5, and the hydraulic actuator can be connected to the hydraulic pump station configured on the assembly vehicle 5 through a hydraulic pipeline. During assembly, a simple segment crane can be configured to transport the segment from the back to the front to the segment assembly position.

[0045] Of course, in other embodiments, the actuator used by the segment assembly mechanism 4 may also be an electric actuator, such as an electric push rod, a motor, etc. At this time, there are also two ways to connect the electric actuator to the external power device. One is to configure a quick-connect plug for the electric actuator, which can be connected to the electric control cabinet configured in the top tightening machine head through the quick-connect plug. At this time, the entire power system of the top tightening machine head is equivalent to the power device; the other is to configure an independent power system (power device) on the assembly vehicle 5, such as a cable box, an electric control cabinet, etc., and the electric actuator is powered by the power system on the assembly vehicle 5.

[0046] Considering that the pipe segments of some materials are heavy, in order to prevent the assembly vehicle 5 from "rolling over" forward when assembling the pipe segments, the assembly vehicle 5 is also provided with a slag bucket 501. Figure 2 As shown, the slag generated during the excavation process can be stored in the slag bucket 501. At this time, the assembly vehicle 5 is also equivalent to a slag truck, which not only stores the slag but also can use the slag as a counterweight. Of course, the hydraulic pump station or power system in the above-mentioned solution of configuring an independent hydraulic pump station or power system on the assembly vehicle 5 can also play the role of counterweight. At this time, if the space is limited, the slag bucket 501 can also be not set on the assembly vehicle 5.

[0047] On the basis of the slag bucket 501, the segment assembly mechanism 4 can be installed on the bucket wall of the slag bucket 501, and the size of the assembly vehicle 5 can be maximized to install the slag bucket 501. Of course, in other embodiments, the assembly vehicle 5 can also be provided with an independent mounting frame for mounting the segment assembly mechanism 4.

[0048] Considering the small space in the rescue channel, the segment assembly mechanism 4 is configured as a rotary assembly mechanism. Figure 2 As shown, the segment assembly mechanism 4 includes a mounting seat, which may be a square or round column. A rotating device is provided on the mounting seat. The so-called rotating device refers to a device including a fixed body and a rotating body 402. The segment assembly mechanism 4 also includes an assembly cylinder 401. The assembly cylinder 401 is installed on the rotating body 402 and can rotate with the rotating body 402. The installation direction, arrangement direction or telescopic direction of the assembly cylinder 401 extends along the radial direction of the rotating device. At this time, the assembly cylinder 401 is equivalent to the above-mentioned hydraulic actuator. In order to be able to grab the segment normally, one end of the assembly cylinder 401 is also configured with a grabbing structure that can grab the segment. As shown Figure 3 and Figure 4 As shown, the assembling cylinder 401 can grab the pipe segment and rotate with the rotating body 402. After rotating to a suitable angle, the assembling cylinder 401 extends to push the pipe segment to the assembly position.

[0049] Of course, depending on the rescue situation on site, the diameter of the pipe segment used in some projects is relatively large, that is, the diameter of the rescue channel formed is also relatively large. In this case, the pipe segment assembly mechanism 4 can also be selected as an assembly mechanism composed of a multi-degree-of-freedom mechanical arm. In this case, the hydraulic actuator is a hydraulic cylinder or a hydraulic motor configured in the multi-degree-of-freedom mechanical arm system. Of course, if an electric actuator is used, the electric actuator is an electric push rod, a motor, etc. configured in the multi-degree-of-freedom mechanical arm system.

[0050] As a simple and easy-to-implement gripping structure, Figure 5 and Figure 6 As shown, the grabbing piece structure includes a first pin hole and a connecting pin 406 provided on the piston rod of the assembly oil cylinder 401. Correspondingly, a second pin hole is provided at a corresponding position on the pipe segment. The piston rod can be inserted into the corresponding position on the pipe segment, and then the connecting pin 406 is used to pass through the first pin hole and the second pin hole to connect the pipe segment and the assembly oil cylinder 401 to achieve "grabbing" of the pipe segment. In order to prevent the connecting pin 406 from withdrawing, a split pin can be inserted at one end of the connecting pin 406.

[0051] In order to improve the force of the assembly cylinder 401, in other embodiments, the assembly cylinder 401 is not directly connected to the pipe segment, but is indirectly connected. For example, a guide seat and a support column that cooperates with the guide seat are provided on the rotating body 402, and one end of the assembly cylinder 401 is connected to the support column. In this case, the first pin hole mentioned above can be provided on the support column.

[0052] like Figure 5 and Figure 6 As shown, when digging a rescue channel, the segments used include two types, one is a box-type segment 601, and the other is a single-layer segment 602. For the box-type segment 601, a segment hole seat 603 can be integrated inside the box-type segment 601, and the segment hole seat 603 forms the corresponding position on the above-mentioned segment, that is, the segment hole seat 603 is provided with a second pin hole. For the single-layer segment 602, the gripping structure also needs to be configured with a segment connection seat 405, such as Figure 6 As shown, the segment connection seat 405 can be connected to the single-layer segment 602, and the second pin hole is provided on the segment connection seat 405. After the segment connection seat 405 is connected to the single-layer segment 602, the segment connection seat 405 can be regarded as a part of the single-layer segment 602, and forms the corresponding position on the segment.

[0053] Specifically, a stud is provided at one end of the segment connection seat 405, and a threaded hole can be provided on the single-layer segment 602. When in use, the stud and the threaded hole can be threadedly connected. Of course, in other implementations, a flange can also be provided at one end of the segment connection seat 405, and the segment connection seat 405 is connected to the single-layer segment 602 by screws and the flange.

[0054] It should be noted that the use of the box-type segment 601 and the single-layer segment 602 can be flexibly selected according to the on-site rescue conditions. If all box-type segments 601 are used, the segment connection seat 405 may not be configured in the grabbing segment structure. Of course, in addition to the above-mentioned grabbing segment structure, in other embodiments, the grabbing segment structure can also be set as a vacuum suction cup or a mechanical claw.

[0055] In order to realize the automatic rotation of the rotating body 402, the rotating device is also equipped with a rotating motor 403, which is a hydraulic motor. In this case, the rotating motor 403 is also equivalent to the above-mentioned hydraulic actuator. Specifically, the power output shaft of the rotating motor 403 can be connected to the rotating body 402 through a slewing bearing and other structures. In this way, when assembling the pipe segments, the rotating body 402 is driven by the rotating motor 403 to rotate, which further reduces the labor intensity of the rescue firefighters. It should be emphasized here that in other embodiments, it is not necessary to configure the rotating motor 403, and the rescue firefighters can manually rotate the rotating body 402. It is not difficult to understand that compared with directly moving the pipe segments, the labor required is still relatively small.

[0056] Regardless of the form of the segment assembly mechanism 4, the segment assembly mechanism 4 can be connected to the assembly vehicle 5 through a detachable connection. Specifically, the segment assembly mechanism 4 can be provided with a connection flange 404, which can be connected to the assembly vehicle 5 through a screw or a pin passing through the connection flange 404. Of course, in other embodiments, a detachable connection form such as a buckle can also be used. In this way, when excavating a rescue channel on site, the assembly vehicle 5 can be flexibly selected according to the conditions on site. For example, the muck truck on site can be directly selected, and the segment assembly mechanism 4 can be dismantled after use.

[0057] Specific embodiment of the segment assembly equipment in the utility model:

[0058] The embodiment of the segment assembly equipment is the segment assembly equipment recorded in the embodiment of the above-mentioned tunnel rescue channel excavation system, and will not be described in detail here.

[0059] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A segment assembly device, characterized in that: It includes an assembly vehicle, the front end of which is provided with a segment assembly mechanism, the segment assembly mechanism includes an actuator; the actuator is equipped with a quick-connect connector for connecting to a jacking head power device of a tunnel rescue channel excavation system, or the assembly vehicle is provided with an independent power device for providing power to the actuator.

2. The segment assembly equipment according to claim 1, characterized in that: The assembly vehicle is also provided with a slag bucket for storing slag.

3. The segment assembly equipment according to claim 2, characterized in that: The segment assembly mechanism is arranged on the bucket wall of the slag bucket.

4. The segment assembly equipment according to claim 1, 2 or 3, characterized in that: The segment assembly mechanism includes a mounting seat, a rotating device is provided on the mounting seat, the actuator includes an assembly cylinder, the power device is a hydraulic pump station, the assembly cylinder is installed on the rotating body of the rotating device, and the assembly cylinder extends radially along the rotating device, and one end of the assembly cylinder is provided with a grabbing structure for grabbing the segment.

5. The segment assembly equipment according to claim 4, characterized in that: The grab piece structure includes a first pin hole arranged on the piston rod of the assembled cylinder, or a guide seat and a support column guided by the guide seat are provided on the rotating body, one end of the assembled cylinder is connected to the support column, and the grab piece structure includes a first pin hole arranged on the support column; the grab piece structure also includes a connecting pin shaft used to pass through the first pin hole and a second pin hole arranged at a corresponding position on the pipe segment to connect the pipe segment and the assembled cylinder.

6. The segment assembly equipment according to claim 5, characterized in that: The grabbing piece structure also includes a pipe piece connecting seat for connecting pipe pieces, and the pipe piece connecting seat is provided with the second pin hole.

7. The segment assembly equipment according to claim 6, characterized in that: A stud is provided at one end of the pipe segment connection seat, and the stud is used to connect with the threaded hole opened on the pipe segment.

8. The segment assembly equipment according to claim 4, characterized in that: The rotary device includes a rotary drive device, and the actuator further includes a rotary motor forming the rotary drive device.

9. The segment assembly equipment according to claim 1, 2 or 3, characterized in that: The segment assembly mechanism is installed on the assembly vehicle through detachable connecting parts.

10. A tunnel rescue channel excavation system, characterized in that: It comprises the segment assembly equipment as described in any one of claims 1 to 9.

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