CN219176330U - Tunneling machine - Google Patents

Abstract

The application provides a development machine relates to tunnel excavation equipment. The heading machine comprises a cutter head mechanism, a front shield and a telescopic shield, wherein the cutter head mechanism is arranged at the first end of the front shield and is used for excavating stratum soil. The telescopic shield is arranged at the second end of the front shield, a first platform and first anchoring equipment which is movably arranged on the first platform are arranged in the telescopic shield, and the first anchoring equipment moves towards a direction approaching or far away from the front shield relative to the first platform; the top of flexible shield is provided with first opening, and first opening is relative with first platform. The entry driving machine of this application is provided with first opening at flexible shield top, can reduce empty roof spacing. And the first platform is additionally arranged in the telescopic shield, and the anchoring equipment is arranged on the first platform, so that the tunnel formed after tunneling is reinforced in time, and the problems of slope collapse and roof falling easily occur in the tunneling process are solved.

Description

Tunneling machine

Technical Field

The application relates to the technical field of tunnel excavation equipment, in particular to a heading machine.

Background

Tunnel boring machine (Tunnel boring machine, TBM for short) is a high-efficiency hard rock tunneling device, is widely applied to the fields of traffic, diversion and the like, and has been applied and developed to a certain extent in the field of coal mines in recent years.

In the related art, a supporting operation is implemented on a tunnel in the tunneling process of the tunnel boring machine so as to prevent the tunnel from collapsing and falling off.

However, when a large fracture zone is encountered, the tunnel tends to collapse and fall off. On one hand, the collapsed stone blocks are easy to crush equipment, and on the other hand, accumulated dregs can be subjected to supporting operation after being cleaned, so that tunneling efficiency is affected.

Disclosure of Invention

The application provides a development machine for solve the development machine and easily appear collapsing group, fall the problem on top in the development process.

In one aspect, according to some alternative embodiments, the present application provides a heading machine. The heading machine comprises a cutter head mechanism, a front shield and a telescopic shield, wherein the cutter head mechanism is arranged at the first end of the front shield and is used for excavating stratum soil. The telescopic shield is arranged at the second end of the front shield, a first platform and first anchoring equipment which is movably arranged on the first platform are arranged in the telescopic shield, and the first anchoring equipment moves towards a direction approaching or far away from the front shield relative to the first platform; the top of flexible shield is provided with first opening, and first opening is relative with first platform.

According to some alternative embodiments, the first anchoring device comprises a first mount and a first jumbolter, the first jumbolter being disposed at the first mount; the first platform is provided with a chute, the first installation seat is in sliding fit with the inner wall of the chute, and the first installation seat moves along the chute in a direction approaching or far away from the front shield.

According to some alternative embodiments, the first anchoring device further comprises a first driving member connected to the first platform and the first mount respectively, and the first driving member drives the first mount to move along the chute in a direction towards or away from the front shield.

According to some alternative embodiments, the heading machine further comprises a first support apparatus disposed at the second end of the front shield, and the first support apparatus is switched between a first state and a second state. In the case of the first support device in the first state, at least part of the first support device extends above the first platform, the first support device is flush with the outer side wall of the front shield and covers at least part of the first opening. The first support device is located within the telescoping shield with the first support device in the second state.

According to some alternative embodiments, the first support device comprises a first support bar and a second driver, one end of the first support bar is rotatably connected to one end of the front shield close to the telescopic shield, a first end of the second driver is rotatably connected to the front shield, a second end of the second driver is rotatably connected to the first support bar, and the second driver drives the first support bar to switch between the first position and the second position. With the first support bar in the first position, the first support bar is flush with the outer sidewall of the front shield and extends at least partially into the first opening. Under the condition that the first supporting rod is located at the second position, the first supporting rod is located in the telescopic shield.

According to some alternative embodiments, the first opening extends from an end of the telescopic shield close to the front shield to an end of the telescopic shield remote from the front shield.

According to some alternative embodiments, the first platform is horizontally arranged in the telescopic shield, two sides of the width direction of the first platform are connected with the inner sides of two side walls of the telescopic shield, and an accommodating space is formed between the first platform and the bottom of the telescopic shield. The heading machine further comprises a main pushing oil cylinder, the main pushing oil cylinder is arranged in the telescopic shield and connected with the front shield, and the front shield and the cutterhead mechanism are driven to move in a direction away from the telescopic shield by the main pushing oil cylinder.

According to some alternative embodiments, the first platform is provided with a support beam, and a first end of the support beam is connected with an inner side wall adjacent to the first opening in the telescopic shield; the second end of the support beam is connected to the first platform.

According to some alternative embodiments, the heading machine further comprises a tightening shield, a second platform and a second anchoring device, the tightening shield being arranged at an end of the telescopic shield remote from the front shield, the second platform being arranged at an end of the tightening shield remote from the telescopic shield. The second anchoring device is movably arranged on the second platform, and the second anchoring device moves towards the second platform in a direction approaching or separating from the tightening shield.

According to some alternative embodiments, the heading machine further comprises a second support device arranged at an end of the tightening shield facing away from the telescopic shield, the second support device being switched between a first state and a second state. In the case of the second support device in the first state, at least part of the second support device extends above the second platform, the second support device being flush with the outer side wall of the tightening shield and covering at least part of the second platform. In the case that the second supporting device is in the second state, the height of the top of the second supporting device from the second platform is the first height; the height of the outer side wall of the top of the tightening shield from the second platform is the second height, and the first height is smaller than the second height.

In the development machine that this application provided, first opening has been seted up at the top of flexible shield, and then is of value to the empty roof distance that reduces the development machine. The empty jacking distance is the distance between one side of the cutterhead, which is away from the front shield, and the edge of one side of the first opening, which is close to the front shield. A first platform is arranged in the telescopic shield, and a first anchoring device is movably arranged on the first platform. Thus, the tunneller can timely support the top of the tunnel through the first anchoring equipment in the tunnel excavation process, and is further beneficial to preventing the tunnel from collapsing and falling off. In addition, the first anchoring equipment is movably arranged on the first platform, so that the operation range of the first anchoring equipment is increased, and the support operation is implemented for a larger range of the tunnel top. Therefore, the development machine provided by the application can solve the problems of easy wall collapse and roof falling in the development process.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a cross-sectional view of a heading machine as disclosed in some alternative embodiments of the present application;

FIG. 2 is a second cross-sectional view of a heading machine as disclosed in some alternative embodiments of the present application;

FIG. 3 is a schematic illustration of a heading machine as disclosed in some alternative embodiments of the present application;

FIG. 4 is a schematic illustration of a telescoping shield according to some alternative embodiments of the present application;

FIG. 5 is a schematic illustration of a first support apparatus and a second support apparatus as disclosed in some alternative embodiments of the present application;

FIG. 6 is a schematic illustration of an assembly of a second support apparatus with a cinching shield as disclosed in some alternative embodiments of the present application;

FIG. 7 is a schematic view of a passageway in a cinching shield according to some alternative embodiments of the present application;

fig. 8 is a schematic view of a side of a strut shield adjacent to a telescoping shield in some alternative embodiments of the present application.

Reference numerals illustrate:

100-a cutterhead mechanism; 110-cutterhead; 120-main drive; 200-front shield; 210-front shield support; 300-telescopic shield; 310-a first platform; 311-supporting beams; 320-a first anchoring device; 321-a first mount; 322-first jumbolter; 323-a first drive member; 301-a first opening; 302-accommodation space; 400-a first support device; 410-a first support bar; 420-a second driver; 500-a main pushing cylinder; 600-tightening the shield; 601-channel; 602-a second opening; 610-cat ladder; 700-a second platform; 800-a second anchoring device; 810-a second mount; 820-a second jumbolter; 830-a third driver; 900-a second support device; 910-a second support bar; 920-fourth drive; 1000-trailer.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

In the related art, the open tunnel boring machine cannot meet the requirement of small turning due to an overlong main beam structure. And the supporting area of the tunnel boring machine is exposed completely. Therefore, under the condition that the tunnel collapses and falls off the roof, the collapsed stone is easy to damage equipment in the heading machine. In addition, in order to improve the safety of the tunneling machine, the tunneling machine in the related technology has more shields for protecting the host, and increases the empty jack distance, so that the collapse probability of the supporting area is increased.

Aiming at the technical problems, the embodiment of the application provides a heading machine. According to the development machine, the working platform is arranged in the telescopic shield, so that the working platform can prevent dregs from entering the installation space of the host equipment of the development machine, and further the protection of the host equipment in the development machine is facilitated. In addition, the top of the telescopic shield is opened, and an anchoring device is arranged on the operation platform. And the anchoring equipment can anchor the tunnel area positioned at the top of the telescopic shield, so that the probability of tunnel collapse is reduced. In addition, the telescopic shield is close to the cutterhead mechanism of entry driving machine front end, and then is favorable to reducing the interval between cutterhead mechanism and the telescopic shield open-top to make the top of the tunnel of excavation can in time obtain anchor support, and then is favorable to further reducing the probability that the tunnel collapses. Therefore, the tunneling machine provided by the utility model can solve the problem that the tunneling machine is easy to collapse and fall off the roof in the tunneling process.

The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to fig. 1 to 8.

Referring to fig. 1 and 2, according to some alternative embodiments, the present application provides a heading machine. The heading machine comprises a cutterhead mechanism 100, a front shield 200 and a telescopic shield 300. The cutterhead mechanism 100 is a basic structure that can be used to excavate formation soil.

Illustratively, as shown in fig. 1 and 2, the cutterhead mechanism 100 is disposed at a first end of a front shield 200. The telescoping shield 300 is disposed at a second end of the front shield 200. Illustratively, the front shield 200 may be used to provide a mounting base for the cutterhead mechanism 100, with the function of protecting the main drive of the cutterhead mechanism 100 and stabilizing the supporting cutterhead mechanism 100.

In some alternative embodiments, as shown in fig. 1 and 2, a first end of the front shield 200 has a front shield support 210. Illustratively, a front shield support 210 is disposed about the cutterhead mechanism 100 to protect the cutterhead mechanism 100 by the front shield support 210.

Referring to fig. 2 and 4, in some alternative embodiments, a first platform 310 and a first anchor 320 movably disposed to the first platform 310 are disposed within the telescoping shield 300. The first anchor 320 moves relative to the first platform 310 in a direction toward or away from the front shield 200. The top of the telescopic shield 300 is provided with a first opening 301. The first opening 301 is opposite to the first platform 310.

In some alternative embodiments, the first platform 310 is disposed horizontally within the telescoping shield 300. Illustratively, the first platform 310 may be fixedly coupled to an inner wall of the housing of the telescoping shield 300. In some alternative embodiments, the first platform 310 has a cross beam. The crossbeam sets up along the width direction of flexible shield 300, and the both ends of crossbeam link to each other with the inner wall of the both sides of the width direction of flexible shield 300 respectively. The width direction of the telescopic shield 300 is perpendicular to the tunneling direction of the tunneling machine. In some alternative embodiments, the width direction of the telescopic shield 300 is the left and right sides of the tunneling direction of the tunneling machine.

In some alternative embodiments, the first platform 310 may be disposed adjacent to a middle portion of the telescoping shield 300. Thus, the first platform 310 may layer the space within the telescoping shield 300 up and down. In some alternative embodiments, host devices may be disposed within the telescoping shield 300 below the first platform 310 to protect the host devices within the telescoping shield 300 through the first platform 310. Illustratively, the host device may include, but is not limited to, a main drive including a main push cylinder that pushes the front shield 200 forward, a drive cutterhead.

Referring to fig. 1 and 3, in some alternative embodiments, the first opening 301 extends from an end of the telescoping shield 300 proximate the front shield 200 to an end of the telescoping shield 300 distal from the front shield 200. This is beneficial in reducing the spacing between the cutterhead 110 and the first opening 301 in the cutterhead mechanism 100 and thus in shortening the overhead distance of the heading machine.

In some alternative embodiments, the projection of the first opening 301 in the direction of heading of the heading machine corresponds to a central angle of the order: 30 ° to 120 ° to provide sufficient working space for the first anchor 320. In some alternative embodiments, the central angle corresponding to the first opening 301 is 60 °, which may provide enough working space for the first anchoring device 320 to strengthen the tunnel. On the other hand, the portion of the telescopic shield 300 protruding from the first platform 310 can be ensured, and the dregs on both sides of the tunnel can be effectively blocked.

Referring to fig. 2-4, in some alternative embodiments, the width of the first opening 301 is equal throughout the heading direction of the heading machine, such that the top of the telescoping shield 300 forms a U-shaped open area to facilitate reinforcement of the tunnel by the first anchor 320 on the first platform 310.

In some alternative embodiments, the size of the first opening 301 may be set according to the size of the working space required for the first anchoring device 320 and the size of the machining area required for the tunnel roof. For this reason, the present embodiment does not limit the magnitude of the central angle of the first opening 301 corresponding to the arc.

In the above embodiment, the first opening 301 is opposite to the first platform 310, and the first anchoring device 320 is disposed on the first platform 310. In this way, the first anchoring device 320 may pass through the first opening 301 to strengthen the top of the tunnel above the telescoping shield 300 to avoid collapse of the top of the tunnel.

Compared with the development machine in the related art, the development machine provided by the application can utilize the first platform 310 to provide support for equipment below the first platform 310, so that the equipment below the first platform 310 is prevented from being broken by fallen slag blocks. In addition, the first anchoring device 320 disposed on the first platform 310 may be used to perform a reinforcing operation on a portion of the tunnel opposite to the first opening 301, so that the duration between the tunnel formation and the tunnel top fixation may be shortened by shortening the interval between the anchoring area and the cutterhead 110 of the heading machine, so as to reduce the probability of collapse of the tunnel top. Therefore, the development machine provided by the application is beneficial to solving the problems that the development machine is easy to collapse and fall off the top in the development process.

In addition, in the above embodiment, the first anchor 320 is movably provided on the first platform 310, and the first anchor 320 can be moved in the tunneling direction of the heading machine. In this way, it is beneficial to increase the working range of the first anchoring device 320, and to strengthen the tunnel by the first anchoring device 320.

According to some alternative embodiments, as shown in fig. 1-4, the first anchor device 320 includes a first mount 321 and a first jumbolter 322. The first jumbolter 322 is disposed at the first mount 321. The first platform 310 has a chute, the first mounting seat 321 is slidably matched with the inner wall of the chute, and the first mounting seat 321 moves along the chute in a direction approaching or separating from the front shield 200.

Illustratively, the extending direction of the chute is the axial direction of the telescopic shield 300. Optionally, in the case that the heading machine heading along a straight line, the extending direction of the chute is the heading direction of the heading machine.

In some alternative embodiments, at least a portion of the first mount 321 is positioned within the chute such that the first mount 321 can slide along the chute.

In some alternative embodiments, the bottom of the first mounting seat 321 is provided with a slider, and the width of the slider is adapted to the width of the slot, so that two sides of the width direction of the slider can be respectively slidingly matched with two inner side walls of the slot in the width direction of the slot. In this way, it is beneficial to improve the reliability of the movement of the first anchor 320 relative to the first platform 310. In some further alternative embodiments, the first platform 310 is provided with two parallel sliding grooves. The first mounting seat 321 is provided with two mutually parallel sliding blocks. One slide block corresponds to one slide groove, and the slide block is in sliding fit with the corresponding slide groove. In this way, it is beneficial to further improve the smoothness of movement of the first anchoring device 320 relative to the first platform 310.

In the above embodiments, the first jumbolter 322 may be used to perform a process on a tunnel. The first mount 321 can be moved in a direction approaching or moving away from the front shield 200 as needed to adjust the working range of the first jumbolter 322.

In some alternative embodiments, the first anchor device 320 further comprises a first driver 323. The first driving piece 323 is respectively connected with the first platform 310 and the first mounting seat 321, and the first driving piece 323 drives the first mounting seat 321 to move along the chute in a direction approaching or separating from the front shield 200. By way of example, the first driver 323 may be, but is not limited to being, a hydraulic cylinder, an air cylinder, a screw mechanism, a rack and pinion mechanism, a linkage mechanism, or the like.

In the above embodiment, the first anchoring device 320 may be moved along the first platform 310 by the first driving member 323, which is beneficial to reduce the labor intensity of operators, so as to strengthen the tunnel.

In some alternative embodiments, the heading machine further includes a first support apparatus 400, the first support apparatus 400 being disposed at a second end of the front shield 200, and the first support apparatus 400 being switched between a first state and a second state. With the first support apparatus 400 in the first state, at least a portion of the first support apparatus 400 extends above the first platform 310, the first support apparatus 400 is flush with the outer sidewall of the front shield 200 and covers at least a portion of the first opening 301, so that the first support apparatus 400 can effectively block slag soil above the telescoping shield 300 from falling. With the first support apparatus 400 in the second state, the first support apparatus 400 is located within the telescoping shield 300. In this way, the forward resistance of the heading machine can be effectively reduced, and the space for reinforcing the tunnel at the top of the telescopic shield 300 can be increased.

For example, during the process of the excavation operation of the excavation machine on the broken surrounding rock, the first supporting apparatus 400 may be switched to the first state, so as to perform a supporting function through the first supporting apparatus 400, thereby being beneficial to preventing the tunnel from collapsing. After the tunnel roof is reinforced by the first anchor device 320, the first support device 400 may be switched to the second state to reduce the resistance to the heading machine traveling.

In the above embodiment, the first supporting device 400 can be switched between the first state and the second state as required, so that the first supporting device 400 can be used to realize rapid supporting under the condition of poor geological conditions. Therefore, the safety of the tunneling machine in the tunneling process can be improved, and the empty jack-up distance of the tunneling machine can be reduced under the condition of better geological conditions, so that the tunnel top can be quickly reinforced.

Referring to fig. 1, 2 and 5, in some alternative embodiments, the first support apparatus 400 includes a first support bar 410 and a second driver 420. One end of the first support bar 410 is rotatably connected to one end of the front shield 200 near the telescopic shield 300. The first end of the second driving member 420 is rotatably coupled to the front shield 200, the second end of the second driving member 420 is rotatably coupled to the first support bar 410, and the second driving member 420 drives the first support bar 410 to switch between the first position and the second position. With the first support bar 410 in the first position, the first support bar 410 is flush with the outer sidewall of the front shield 200 and extends at least partially into the first opening 301. With the first support bar 410 in the second position, the first support bar 410 is positioned within the telescoping shield 300. Wherein the second driver 420 may be, but is not limited to, a hydraulic cylinder. In some alternative embodiments, the heading machine includes a plurality of first support apparatuses 400. Illustratively, a plurality of first support apparatuses 400 are spaced along the edge of the second end of the front shield 200. For example, in the case that the first support bar 410 is located at the first position, a shielding member may be provided on the first support bars 410 on the plurality of first supporting devices 400 to better support the tunnel wall for better supporting effect. Wherein the shield may be, but is not limited to, a baffle.

In the above embodiment, the first supporting device 400 may use the second driving member 420 to drive the first supporting rod 410 to move to the first position in the case of encountering broken surrounding rock, so as to implement quick supporting of the first supporting device 400, so as to ensure the safety of the working area on the first platform 310.

In some alternative embodiments, as shown in fig. 4, the first platform 310 is horizontally disposed in the telescopic shield 300, two sides of the width direction of the first platform 310 are connected to inner sides of two sidewalls of the telescopic shield 300, and an accommodating space 302 is formed between the first platform 310 and the bottom of the telescopic shield 300. Illustratively, the first platform 310 encloses with a housing of the telescoping shield 300 below the first platform 310 to form a containment space 302 to prevent slag in the tunnel from entering the containment space 302.

In some alternative embodiments, the heading machine includes a host device disposed within the receiving space 302 to prevent debris from entering the host device for the purpose of protecting the host device. Illustratively, the heading machine further includes a main push cylinder 500, the main push cylinder 500 is disposed in the telescopic shield 300, the main push cylinder 500 is connected to the front shield 200, and the main push cylinder 500 drives the front shield 200 and the cutterhead mechanism 100 to move away from the telescopic shield 300.

In the above embodiment, the main pushing cylinder 500 may be used to push the front shield 200 to move forward and drive the cutterhead mechanism 100 to move forward, so that the cutterhead mechanism 100 may excavate the front rock-digging soil. The main pushing cylinder 500 is disposed in the accommodating space 302, so as to be beneficial to preventing the dregs from falling into the working space of the main pushing cylinder 500, and ensure the cleanliness of the working space of the main pushing cylinder 500.

In some alternative embodiments, cutterhead mechanism 100 includes cutterhead 110 and main drive 120. Illustratively, cutterhead 110 is disposed at a first end of front shield 200, i.e., cutterhead 110 is positioned at the forward-most end of the heading machine, so that cutterhead 110 may be used to excavate the rock formations ahead. The main drive 120 is disposed within the front shield 200 to provide support for the main drive 120 through the front shield 200. In some alternative embodiments, at least a portion of the main drive 120 may protrude toward the telescoping shield 300. In an alternative embodiment, the size of the front shield 200 in the tunneling direction may be reduced so that at least part of the main drive 120 protrudes beyond the end face of the front shield 200 near the end of the telescopic shield 300. In a further alternative embodiment, the portion of the main drive 120 protruding from the front face 200 is located in the receiving space 302 below the first platform 310. Thus, not only is the size of the front shield 200 in the tunneling direction reduced, but the empty jack distance of the tunneling machine can be reduced, the main drive 120 can be protected by the first platform 310, and the main drive 120 is prevented from being broken by falling rocks.

Referring to FIG. 4, in some alternative embodiments, a support beam 311 is provided on the first platform 310, with a first end of the support beam 311 being connected to an inner sidewall of the telescoping shield 300 adjacent the first opening 301; a second end of the support beam 311 is connected to the first platform 310. Illustratively, the support beam 311 approaches the middle of the first platform 310 along a first end of the support beam 311 toward a second end of the support beam 311. Thus, referring to fig. 4, the support beam 311, the first platform 310, and the housing of the telescopic shield 300 above the first platform 310 may form a triangle-like stable structure, thereby advantageously preventing the portion of the telescopic shield 300 above the first platform 310 from being inwardly recessed.

In some alternative embodiments, two sets of support beams 311 are provided on the first platform 310. Illustratively, the two sets of support beams 311 are symmetrically disposed on both sides of the first platform 310 in the width direction. Further alternatively, each set of support beams 311 includes a plurality of support beams 311, and the plurality of support beams 311 in each set of support beams 311 are spaced apart along the heading machine's forward direction. In this way, it is beneficial to increase the compressive strength of the shell of the telescoping shield 300 to avoid the first opening 301 at the top of the telescoping shield 300 from decreasing the strength of the shell of the telescoping shield 300.

In some alternative embodiments, the heading machine further includes a standoff shield 600, a second platform 700, and a second anchor device 800. The tightening shield 600 is disposed at an end of the telescopic shield 300 remote from the front shield 200. The second platform 700 is disposed at an end of the strut shield 600 remote from the telescopic shield 300. The second anchoring device 800 is movably disposed on the second platform 700, and the second anchoring device 800 moves toward or away from the second platform 700 to tighten the shield 600.

Referring to fig. 1-3, 7 and 8, in some alternative embodiments, the top of the cinching shield 600 is provided with a second opening 602. Illustratively, the cinching shield 600 forms a convertible U-shaped structure. Optionally, a bracing shield platform is disposed within the bracing shield 600, and the bracing shield platform is opposite the second opening 602. And the channel 601 is formed above the tightening shield platform, so that an operator can pass through the tightening shield 600 along the channel 601 formed above the tightening shield platform and reach into the telescopic shield 300, and further the operator can reach the first platform 310 to operate the first anchoring device 320 to perform reinforcement operation on the tunnel.

In some alternative embodiments, the end of the cinching shield 600 adjacent the telescoping shield 300 is provided with a ladder 610 to facilitate the passage of an operator between the telescoping shield 300 and the cinching shield 600 via the ladder 610.

In some alternative embodiments, the strut mechanisms are provided on both sides of the strut shield 600, and the strut mechanisms may protrude at least partially from the outer side wall of the housing of the strut shield 600, such that the strut shield 600 may be supported by the strut mechanisms to the tunnel wall of the tunnel. During the tunneling process, the tunneling machine can be supported on the tunnel wall through the supporting shoe mechanism of the supporting shield 600 to provide a reaction force for the tunneling machine tunneling.

In some alternative embodiments, the second anchoring device 800 includes a second mount 810, a second jumbolter 820, and a third drive 830. Wherein the second jumbolter 820 is disposed at the second mount 810. Optionally, the second mount 810 is movably disposed on the second platform 700. The third driving member 830 is connected to the second platform 700 and the second mounting seat 810, respectively, and the third driving member 830 can drive the second mounting seat 810 to move in a direction approaching or separating from the tightening shield 600, so as to increase the working range of the second jumbolter 820.

In some alternative embodiments, the heading machine also includes a connecting bridge and trailer 1000. Illustratively, the connecting bridge is disposed at an end of the strut shield 600 remote from the telescoping shield 300. Further alternatively, the trailer 1000 is connected to the end of the connection bridge remote from the cinching shield 600. Illustratively, the trailer 1000 is rotatably coupled to the connecting axle. Referring to fig. 1, in some alternative embodiments, a second platform 700 may be provided on the connection bridge. During a tunneling operation, auxiliary equipment required for the tunneling operation may be loaded by the trailer 1000.

In some alternative embodiments, the heading machine further includes a second support apparatus 900, the second support apparatus 900 being disposed at an end of the cinching shield 600 facing away from the telescoping shield 300, the second support apparatus 900 being switched between a first state and a second state. With the second support apparatus 900 in the first state, at least a portion of the second support apparatus 900 extends above the second platform 700, the second support apparatus 900 being flush with the outer sidewall of the cinching shield 600 and covering at least a portion of the second platform 700. With the second support apparatus 900 in the second state, the top of the second support apparatus 900 is at a first height from the second platform 700; the outer sidewall of the top of the tightening shield 600 is at a second height from the second platform 700, and the first height is less than the second height.

Referring to fig. 6, according to some alternative embodiments, the second support apparatus 900 includes a second support bar 910 and a fourth drive member 920. One end of the second support bar 910 is rotatably connected to one end of the tightening shield 600 facing away from the telescopic shield 300. The first end of the fourth driving member 920 is rotatably coupled to the tightening shield 600, the second end of the fourth driving member 920 is rotatably coupled to the second support bar 910, and the fourth driving member 920 drives the second support bar 910 to switch between the first position and the second position. With the second support bar 910 in the first position, the second support bar 910 extends at least partially above the second platform 700, the second support bar 910 is flush with the outer sidewall of the cinching shield 600, and covers at least a portion of the second platform 700. With the second support bar 910 in the second position, the height of the top of the second support bar 910 from the second platform 700 is less than the height of the outer sidewall of the top of the cinching shield 600 from the second platform 700. Wherein the fourth drive member 920 may be, but is not limited to, a hydraulic cylinder.

In some alternative embodiments, the heading machine includes a plurality of second support apparatuses 900. Illustratively, a plurality of second support apparatus 900 are spaced along the edge of the second end of the strut shield 600. For example, in the case that the second supporting bar 910 is located at the first position, a shielding member may be disposed on the second supporting bars 910 of the plurality of second supporting devices 900 to better support the tunnel wall for better supporting effect. Wherein the shield may be, but is not limited to, a baffle.

In the above embodiment, the second supporting device 900 may use the fourth driving member 920 to drive the second supporting rod 910 to move to the first position in the case of encountering the broken surrounding rock zone, so as to implement quick supporting of the second supporting device 900, so as to ensure the safety of the working area on the second platform 700.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. The heading machine is characterized by comprising a cutterhead mechanism (100), a front shield (200) and a telescopic shield (300), wherein the cutterhead mechanism (100) is arranged at a first end of the front shield (200), and the cutterhead mechanism (100) is used for excavating rock stratum soil; the telescopic shield (300) is arranged at the second end of the front shield (200), a first platform (310) and first anchoring equipment (320) movably arranged on the first platform (310) are arranged in the telescopic shield (300), and the first anchoring equipment (320) moves towards a direction approaching to or away from the front shield (200) relative to the first platform (310); the top of the telescopic shield (300) is provided with a first opening (301), and the first opening (301) is opposite to the first platform (310).

2. The heading machine of claim 1, characterized in that the first anchoring device (320) comprises a first mount (321) and a first jumbolter (322), the first jumbolter (322) being arranged to the first mount (321); the first platform (310) is provided with a sliding groove, the first mounting seat (321) is in sliding fit with the inner wall of the sliding groove, and the first mounting seat (321) moves along the sliding groove in a direction approaching to or separating from the front shield (200).

3. The heading machine of claim 2, characterized in that the first anchor device (320) further comprises a first driver (323), the first driver (323) is respectively connected with the first platform (310) and the first mount (321), and the first driver (323) drives the first mount (321) to move along the chute in a direction approaching or moving away from the front shield (200).

4. A heading machine as claimed in claim 3, further comprising a first support apparatus (400), the first support apparatus (400) being provided at a second end of the front shield (200), and the first support apparatus (400) being switched between a first state and a second state;

with the first support device (400) in a first state, at least part of the first support device (400) extends above the first platform (310), the first support device (400) being flush with an outer side wall of the front shield (200) and covering at least part of the first opening (301);

the first support device (400) is located within the telescoping shield (300) with the first support device (400) in a second state.

5. The heading machine of claim 4 wherein said first support apparatus (400) includes a first support rod (410) and a second drive member (420), one end of said first support rod (410) being rotatably coupled to an end of said front shield (200) adjacent said telescoping shield (300), a first end of said second drive member (420) being rotatably coupled to said front shield (200), a second end of said second drive member (420) being rotatably coupled to said first support rod (410), and said second drive member (420) driving said first support rod (410) between a first position and a second position,

-said first support bar (410) is flush with the outer side wall of said front shield (200) and extends at least partially into said first opening (301) with said first support bar (410) in said first position;

the first support bar (410) is located within the telescoping shield (300) with the first support bar (410) in the second position.

6. A heading machine as claimed in claim 1, characterised in that the first opening (301) extends from an end of the telescopic shield (300) adjacent the front shield (200) to an end of the telescopic shield (300) remote from the front shield (200).

7. The heading machine according to any one of claims 1 to 6, characterized in that the first platform (310) is horizontally disposed in the telescopic shield (300), both sides in a width direction of the first platform (310) are connected to inner sides of both side walls of the telescopic shield (300), and an accommodation space (302) is formed between the first platform (310) and a bottom of the telescopic shield (300);

the heading machine further comprises a main pushing oil cylinder (500), wherein the main pushing oil cylinder (500) is arranged in the telescopic shield (300), the main pushing oil cylinder (500) is connected with the front shield (200), and the main pushing oil cylinder (500) drives the front shield (200) and the cutterhead mechanism (100) to move in a direction away from the telescopic shield (300).

8. The heading machine of claim 7 characterized in that said first platform (310) is provided with a support beam (311), a first end of said support beam (311) being connected to an inner sidewall of said telescoping shield (300) adjacent said first opening (301); a second end of the support beam (311) is connected to the first platform (310).

9. The heading machine of any one of claims 1 to 6 further including a cinching shield (600), a second platform (700) and a second anchor device (800), said cinching shield (600) being disposed at an end of said telescoping shield (300) remote from said front shield (200), said second platform (700) being disposed at an end of said cinching shield (600) remote from said telescoping shield (300);

the second anchoring device (800) is movably arranged on the second platform (700), and the second anchoring device (800) moves towards the second platform (700) to be close to or far away from the tightening shield (600).

10. The heading machine of claim 9 further comprising a second support device (900), said second support device (900) being disposed at an end of said cinching shield (600) facing away from said telescoping shield (300), said second support device (900) being switched between a first state and a second state;

with the second support device (900) in a first state, at least part of the second support device (900) extends above the second platform (700), the second support device (900) being flush with an outer side wall of the cinching shield (600) and covering at least part of the second platform (700);

-the height of the top of the second support device (900) from the second platform (700) is a first height with the second support device (900) in a second state; the height of the outer side wall of the top of the tightening shield (600) from the second platform (700) is a second height, and the first height is smaller than the second height.

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