Caterpillar track type heading machine

Abstract

The utility model provides a caterpillar track type heading machine, and relates to the technical field of heading machines. The caterpillar track type walking mechanism is connected with the heading machine main frame body, and the caterpillar track type walking mechanism is used for driving the heading machine main frame body to move; the caterpillar track type walking mechanism comprises a pre-laid caterpillar track, a pre-laid caterpillar track and a pre-laid caterpillar track, the chain wheels are rotatably arranged on the heading machine main frame body, the chain wheels are meshed with the pre-paving chain track, and the chain wheels are used for walking on the pre-paving chain track so that the heading machine main frame body can move relative to the bottom face of the roadway. According to the technical scheme, the chain wheel walks on the pre-laid chain track, so that the main frame body of the heading machine moves relative to the bottom surface of a roadway. Compared with a crawler-type heading machine, the caterpillar track type heading machine can climb under the large-gradient working condition of 30 degrees or above, is good in stability, overcomes the technical bottleneck that an existing heading machine cannot climb on the large gradient, and is beneficial to reducing potential safety hazards and improving the heading efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunneling machine technology, and more specifically, to a tracked tunneling machine. Background Technology

[0002] In related technologies, tunneling machines are typically tracked. This type of machine is limited by the structure of its tracked walking mechanism, making it suitable only for slopes within ±18 degrees. For extreme slopes exceeding 30 degrees, tracked tunneling machines encounter difficulties climbing. Therefore, for extreme slopes above 30 degrees, workers still employ the traditional drilling and blasting method, which poses safety hazards and results in low tunneling efficiency. Utility Model Content

[0003] In order to solve or improve the technical problem that tunneling machines in related technologies have difficulty climbing slopes with a gradient of more than 30 degrees, one objective of this utility model is to provide a tracked tunneling machine.

[0004] To achieve the above objectives, the first aspect of this utility model provides a tracked tunneling machine, comprising: a main frame of the tunneling machine; a tracked traveling mechanism connected to the main frame of the tunneling machine, the tracked traveling mechanism being used to drive the main frame of the tunneling machine to move; the tracked traveling mechanism comprising: pre-laid track rails laid on the bottom surface of the tunnel; and multiple sprockets, the sprockets being rotatably mounted on the main frame of the tunneling machine, the sprockets meshing with the pre-laid track rails, the sprockets being used to travel on the pre-laid track rails so that the main frame of the tunneling machine moves relative to the bottom surface of the tunnel.

[0005] This invention aims to provide a tracked tunneling machine that moves its main frame relative to the roadway floor by means of sprockets traveling on pre-laid track. Compared to tracked tunneling machines, this tracked tunneling machine can climb slopes of 30 degrees or more, even exceeding 40 degrees, exhibiting good stability. It overcomes the current technical bottleneck of tunneling machines' inability to climb steep slopes, thus reducing safety hazards and improving tunneling efficiency.

[0006] In some technical solutions, the pre-laid track includes: a track base laid on the bottom surface of the roadway; two parallel track bodies, the track bodies being disposed on the track base; at least one sprocket engaging with one of the track bodies, and at least one sprocket engaging with the other track body; the sprocket is used to travel on the track body to move the main frame of the tunneling machine relative to the bottom surface of the roadway.

[0007] In this technical solution, by setting up a track track base, the track track itself is prevented from being laid directly on the tunnel floor, which helps to increase the contact area between the pre-laid track track and the tunnel floor. The track track base can distribute the impact force or pressure it bears, preventing excessive pressure in a certain location or area from causing track settlement. In addition, since the track track itself is set on the track track base, it is convenient for workers to dismantle and reassemble both the track track base and the track track itself, which helps to improve construction efficiency.

[0008] In some technical solutions, the tracked tunneling machine may optionally include: multiple drive units located on the main frame of the tunneling machine, each drive unit being connected to a corresponding sprocket to drive the sprocket to rotate relative to the main frame of the tunneling machine.

[0009] In this technical solution, each sprocket is independently driven by a corresponding drive unit. This design has two advantages: first, it increases traction, ensuring that the tracked tunneling machine can move and climb slopes and operate normally under steep conditions; second, it achieves redundancy, meaning that if any drive unit fails, the drive units in other locations can continue to operate, which helps reduce equipment downtime and improve work efficiency.

[0010] In some technical solutions, the drive device may optionally include: a hydraulic motor, located on the main frame of the tunneling machine; a first reducer, located on the main frame of the tunneling machine, the first reducer being connected to the hydraulic motor and to the sprocket; the hydraulic motor drives the sprocket to rotate through the first reducer.

[0011] In this technical solution, a hydraulic motor provides power, and its output power is adjusted according to actual needs. The first reducer mainly serves to transmit torque and match the rotational speed. Through the cooperation of the hydraulic motor and the first reducer, the sprocket can move on the pre-laid track, enabling the main frame of the tunneling machine to move relative to the bottom of the roadway, ensuring that the tracked tunneling machine can move and climb slopes and carry out normal construction under steep working conditions.

[0012] In some technical solutions, optionally, the tracked tunneling machine also includes: at least two support mechanisms, which are rotatably mounted on the main frame of the tunneling machine and are used to abut against the sidewall of the roadway; when the main frame of the tunneling machine moves to a preset position, at least one support mechanism is used to abut against the sidewall of one roadway and at least one support mechanism is used to abut against the sidewall of the other roadway.

[0013] In this technical solution, the support mechanism can rotate relative to the main frame of the tunneling machine between a first working position and a second working position. When the support mechanism is in the first working position, it is in a retracted state; when the support mechanism is in the second working position, at least a portion of the support mechanism can abut against the sidewall of the roadway to improve stability during cutting.

[0014] In some technical solutions, the support mechanism optionally includes: a support arm, one end of which is rotatably connected to the main frame of the tunneling machine; and a support shoe located at the other end of the support arm. When the main frame of the tunneling machine moves to a preset position, the support shoe is used to abut against the sidewall of the roadway.

[0015] In this technical solution, when the main frame of the tunneling machine moves to the preset position, the support arm and the support shoe work together to support the side walls of the tunnel on both sides during operation, thereby stabilizing the machine body.

[0016] By setting support shoes, the contact area between the support mechanism and the roadway sidewall is increased, avoiding local stress concentration. This helps improve the stability of the tracked tunneling machine during cutting on steep slopes and solves the problem of machine body swaying during steep cutting.

[0017] In some technical solutions, the support shoe may optionally include: a support plate connected to the other end of the support arm, with at least one side of the support plate bent toward the main frame of the tunneling machine.

[0018] In this technical solution, by setting up a support plate, and bending at least one side of the support plate towards the direction close to the main frame of the tunneling machine, it is beneficial to increase the contact area between the support mechanism and the sidewall of the roadway, avoid local stress concentration, and improve the stability of the tracked tunneling machine in cutting under steep slope conditions.

[0019] In some technical solutions, the boots may optionally have multiple anti-slip protrusions.

[0020] In this technical solution, by setting anti-slip protrusions, the anti-slip protrusions can play a certain role in interlocking with the uneven surface, which helps to maintain stable friction and ensure the stability of the tracked tunneling machine in cutting under steep slope conditions.

[0021] In some technical solutions, the tracked tunneling machine may optionally include a cutting section, which is connected to the front end of the main frame of the tunneling machine via a slewing mechanism. The slewing mechanism is used to drive the cutting section to rotate relative to the main frame of the tunneling machine.

[0022] In this technical solution, the slewing mechanism drives the cutting section to rotate relative to the main frame of the tunneling machine, so as to continuously adjust the posture of the cutting section according to actual needs and improve cutting efficiency.

[0023] In some technical solutions, the tracked tunneling machine may optionally include a shovel section, which is rotatably located at the front end of the main frame of the tunneling machine, and the shovel section is used to collect and cut materials.

[0024] Additional aspects and advantages of the present invention will become apparent in the following description or may be learned by practice of the present invention. Attached Figure Description

[0025] Figure 1 A schematic diagram of a tracked tunneling machine according to an embodiment of the present invention is shown;

[0026] Figure 2 A schematic diagram of a tracked tunneling machine according to another embodiment of the present invention is shown;

[0027] Figure 3 A schematic diagram of a tracked tunneling machine according to another embodiment of the present invention is shown;

[0028] Figure 4 A schematic diagram of a tracked tunneling machine according to another embodiment of the present invention is shown;

[0029] Figure 5 A schematic diagram of the cutting portion according to an embodiment of the present invention is shown;

[0030] Figure 6 A schematic diagram of the connection structure between the slewing mechanism and the main frame of the tunneling machine according to an embodiment of the present invention is shown;

[0031] Figure 7 A schematic diagram of a track base according to an embodiment of the present invention is shown;

[0032] Figure 8 A schematic diagram of a pre-laid track according to an embodiment of the present invention is shown;

[0033] Figure 9 A schematic diagram of a pre-laid track according to another embodiment of the present invention is shown;

[0034] Figure 10 A schematic diagram of the connection structure between the support mechanism and the main frame of the tunneling machine according to an embodiment of the present invention is shown;

[0035] Figure 11 A schematic diagram of a support mechanism according to an embodiment of the present invention is shown;

[0036] Figure 12 A schematic diagram of a support mechanism according to an embodiment of the present invention is shown.

[0037] in, Figures 1 to 12 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0038] 100: Tracked tunneling machine; 110: Main frame of the tunneling machine; 120: Tracked walking mechanism; 121: Pre-laid track; 1211: Track base; 1212: Track body; 122: Sprocket; 130: Drive unit; 131: Hydraulic motor; 132: First reducer; 140: Support mechanism; 141: Support arm; 142: Support shoe; 1421: Support plate; 1422: Anti-slip protrusion; 150: Cutting section; 151: Cutting head; 152: Cutting arm; 160: Rotation mechanism; 170: Shovel plate section; 180: Transport equipment; 211: Tunnel floor; 212: Tunnel sidewall. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, embodiments of the present invention may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] The following reference Figures 1 to 12 This invention describes a tracked tunneling machine provided according to some embodiments of the present invention.

[0042] In one embodiment of this utility model, such as Figure 1 and Figure 4 As shown, the tracked tunneling machine 100 includes a main frame 110 and a tracked traveling mechanism 120. The main frame 110, relative to some components of the tracked traveling mechanism 120 (such as the sprocket 122) and other components of the tracked tunneling machine 100 (such as the support mechanism 140, the cutting section 150, and the shovel section 170), primarily serves as a mounting platform.

[0043] The tracked traveling mechanism 120 is connected to the main frame 110 of the tunneling machine. The tracked traveling mechanism 120 is used to drive the main frame 110 of the tunneling machine to move. When the tracked tunneling machine 100 needs to move in the roadway, the relative position between the main frame 110 of the tunneling machine and the roadway is changed through the tracked traveling mechanism 120.

[0044] The tracked walking mechanism 120 includes a pre-laid track 121 and multiple sprockets 122. The pre-laid track 121 is laid on the roadway floor 211. The multiple sprockets 122 are rotatably mounted on the main frame 110 of the tunneling machine, meaning that the sprockets 122 can rotate relative to the main frame 110 of the tunneling machine. The sprockets 122 mesh with the pre-laid track 121. The sprockets 122 are used to travel on the pre-laid track 121, so that the main frame 110 of the tunneling machine can move relative to the roadway floor 211.

[0045] It should be noted that the laying direction of the pre-laid track 121 is consistent with the direction of the roadway, so that when the tracked tunneling machine 100 moves along the laying direction of the pre-laid track 121, the relative position between the main frame 110 of the tunneling machine and the roadway changes continuously.

[0046] Optionally, the pre-laid track 121 is provided with multiple meshing grooves that match the sprocket 122. The sprocket 122 is provided with multiple meshing teeth. The shape of the meshing teeth is adapted to the shape of the meshing grooves. It should be noted that the tooth profile of the meshing teeth is involute or circular arc curve to ensure smooth transmission.

[0047] In one specific embodiment, there are four sprockets 122. The four sprockets 122 are respectively located at the four corners of the bottom of the tunneling machine main frame 110. This design ensures that while the tunneling machine main frame 110 moves on the pre-laid track 121 via the sprockets 122, the four sprockets 122 provide stable support for the tunneling machine main frame 110, effectively preventing the tunneling machine main frame 110 from tipping over during movement.

[0048] This utility model aims to provide a tracked tunneling machine 100, which moves its main frame 110 relative to the roadway floor 211 via sprockets 122 traveling on pre-laid track chains 121. Compared to tracked tunneling machines, the tracked tunneling machine 100 of this utility model can climb slopes of 30 degrees or even 40 degrees or more, exhibiting good stability and overcoming the current technical bottleneck of tunneling machines being unable to climb steep slopes. This helps reduce safety hazards and improve tunneling efficiency.

[0049] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the pre-laid track 121 includes a track base 1211 and two parallel track bodies 1212. The track base 1211 is laid on the bottom surface 211 of the tunnel.

[0050] Optionally, the laying direction (i.e. the length direction) of the track base 1211 is consistent with the direction of the tunnel.

[0051] Optionally, the track base 1211 is detachably connected to the tunnel floor 211, facilitating the disassembly and assembly of the track base 1211 by workers. As the tracked tunneling machine 100 continuously cuts through the rock face, its working position needs to be continuously moved forward. By removing the track base 1211 located further back and splicing it with the track base 1211 located further forward, the cost of pre-laid track 121 is reduced, ensuring that the tracked tunneling machine 100 can move and climb slopes on the pre-laid track 121.

[0052] In one specific embodiment, the track base 1211 and the tunnel bottom surface 211 are detachably connected by bolts or screws, which is convenient to operate and easy to disassemble and assemble.

[0053] Two parallel track bodies 1212 are mounted on the track base 1211.

[0054] Optionally, the length direction of the track body 1212 is consistent with the laying direction of the track base 1211, and the length direction of the track body 1212 is consistent with the direction of the tunnel.

[0055] Normally, the width of the track body 1212 is relatively small. If the track body 1212 is laid directly on the bottom surface 211 of the tunnel, the contact area between the track body 1212 and the bottom surface 211 of the tunnel is small, which may cause track settlement. In severe cases, it may cause overturning, and it is not easy to remove the track body 1212.

[0056] By setting up the track track base 1211, the track track body 1212 can be prevented from being laid directly on the tunnel floor 211, which helps to increase the contact area between the pre-laid track track 121 and the tunnel floor 211. The track track base 1211 can share the impact force or pressure it bears, preventing excessive pressure in a certain position or area from causing track settlement. In addition, since the track track body 1212 is set on the track track base 1211, it is convenient for workers to dismantle and reassemble the track track base 1211 and the track track body 1212, which helps to improve construction efficiency.

[0057] In one specific embodiment, there is one track base 1211. One track base 1211 is laid on the bottom surface 211 of the tunnel, and two parallel track bodies 1212 are disposed on the track base 1211.

[0058] In one specific embodiment, there are two track track bases 1211. Both track track bases 1211 are laid on the tunnel floor 211, and their laying directions are parallel to each other. In the two parallel track track bodies 1212, each track track body 1212 is mounted on a corresponding track track base 1211. This design optimizes spatial layout, avoids excessively large track track bases 1211, and facilitates disassembly and reassembly of the track track bases 1211.

[0059] In some embodiments, the track body 1212 and the track base 1211 are optionally detachably connected, which facilitates the disassembly and assembly of the track body 1212 by the staff and is beneficial for maintenance or replacement.

[0060] In one specific embodiment, the track body 1212 and the track base 1211 are detachably connected by bolts, screws or clips, which is convenient to operate and easy to assemble and disassemble.

[0061] At least one sprocket 122 engages with one of the track bodies 1212, and at least one sprocket 122 engages with another track body 1212; the sprocket 122 is used to travel on the track body 1212 so that the main frame 110 of the tunneling machine moves relative to the bottom surface 211 of the roadway.

[0062] In one specific embodiment, there are four sprockets 122. The four sprockets 122 are respectively located at the four corners of the bottom of the tunneling machine main frame 110. Of the four sprockets 122, two sprockets 122 mesh with one track rail body 1212, and the other two sprockets 122 mesh with the other track rail body 1212. This design helps improve stability during movement.

[0063] In some embodiments, the pre-laid track 121 may optionally include two limiting guide plates, which are disposed on the track base 1211. The two track bodies 1212 are disposed between the two limiting guide plates. By providing two limiting guide plates, the sprocket 122 and the main frame 110 of the tunneling machine can be limited or guided during the movement process, thereby improving the stability of the movement process and preventing overturning.

[0064] In one specific embodiment, the limiting guide plate and the track base 1211 are an integral structure. Compared with post-processing (such as welding), it has better mechanical properties and higher connection strength, which helps to reduce the number of parts and improve assembly efficiency.

[0065] In one specific embodiment, the limiting guide plate and the track base 1211 are detachably connected, which facilitates the disassembly and assembly of the limiting guide plate by the staff and allows for flexible setting of the relative position of the limiting guide plate and the track base 1211.

[0066] In some embodiments, optionally, such as Figure 6 As shown, the tracked tunneling machine 100 also includes multiple drive units 130. The multiple drive units 130 are located on the main frame 110 of the tunneling machine, and each drive unit 130 is connected to a corresponding sprocket 122 to drive the sprocket 122 to rotate relative to the main frame 110 of the tunneling machine.

[0067] Each sprocket 122 is independently driven by a corresponding drive unit 130. This design has two advantages: first, it increases traction, ensuring that the tracked tunneling machine 100 can move and climb slopes and operate normally under steep conditions; second, it achieves redundancy, so that if any drive unit 130 fails, the drive units 130 in other positions can continue to work, which helps reduce equipment downtime and improve work efficiency.

[0068] In one specific embodiment, there are four sprockets 122. The four sprockets 122 are respectively located at the four corners of the bottom of the main frame 110 of the tunneling machine. There are also four drive units 130, which are also located at the four corners of the bottom of the main frame 110 of the tunneling machine. Each drive unit 130 is connected to a corresponding sprocket 122, forming a four-wheel independent drive system. Compared to tracked tunneling machines, the tracked tunneling machine 100 of this invention can climb slopes of 30 degrees or more, even 40 degrees or more, exhibiting good stability. It overcomes the current technical bottleneck of tunneling machines being unable to climb steep slopes, thus reducing safety hazards and improving tunneling efficiency.

[0069] In some embodiments, optionally, such as Figure 6 As shown, the drive unit 130 includes a hydraulic motor 131 and a first reducer 132. The hydraulic motor 131 is located on the main frame 110 of the tunneling machine. The first reducer 132 is located on the main frame 110 of the tunneling machine. The first reducer 132 is connected to the hydraulic motor 131 and to the sprocket 122. The hydraulic motor 131 drives the sprocket 122 to rotate through the first reducer 132.

[0070] Optionally, the drive unit 130 further includes a first mounting base. The first mounting base is disposed on the main frame 110 of the tunneling machine, and the hydraulic motor 131 is disposed on the first mounting base. By providing the first mounting base, it is beneficial to improve the connection strength between the hydraulic motor 131 and the main frame 110 of the tunneling machine when they are connected, and to improve the installation accuracy of the hydraulic motor 131.

[0071] In one specific embodiment, the first mounting base and the main frame 110 of the tunneling machine are an integral structure. Compared with the post-processing method, it has better mechanical properties and higher connection strength, which helps to reduce the number of parts and improve assembly efficiency.

[0072] In one specific embodiment, the first mounting base is detachably connected to the main frame 110 of the tunneling machine by means of bolts, screws or clips, which makes it convenient for workers to disassemble and assemble the first mounting base and facilitates maintenance or replacement.

[0073] Optionally, the drive unit 130 further includes a second mounting base. The second mounting base is disposed on the main frame 110 of the tunneling machine, and the first reducer 132 is disposed on the second mounting base. By providing the second mounting base, it is beneficial to improve the connection strength between the first reducer 132 and the main frame 110 of the tunneling machine when they are connected, and to improve the installation accuracy of the first reducer 132.

[0074] In one specific embodiment, the second mounting base and the main frame 110 of the tunneling machine are an integral structure. Compared with the post-processing method, it has better mechanical properties and higher connection strength, which helps to reduce the number of parts and improve assembly efficiency.

[0075] In one specific embodiment, the second mounting base is detachably connected to the main frame 110 of the tunneling machine by means of bolts, screws or clips, which makes it convenient for workers to disassemble and assemble the second mounting base and facilitates maintenance or replacement.

[0076] In one specific embodiment, the hydraulic motor 131 is supplied with oil by a variable displacement piston pump, which can automatically adjust the output torque according to the slope and load.

[0077] The hydraulic motor 131 provides power and adjusts its output power according to actual needs. The first reducer 132 mainly transmits torque and matches the speed. Through the cooperation of the hydraulic motor 131 and the first reducer 132, the sprocket 122 can move on the pre-laid track 121, enabling the main frame 110 of the tunneling machine to move relative to the roadway bottom 211, ensuring that the tracked tunneling machine 100 can move and climb slopes and carry out normal construction under steep working conditions.

[0078] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 10 As shown, the tracked tunneling machine 100 also includes at least two support mechanisms 140. The support mechanisms 140 are rotatably mounted on the main frame 110 of the tunneling machine and are used to abut against the sidewall 212 of the roadway.

[0079] When the main frame 110 of the tunneling machine moves to the preset position, at least one support mechanism 140 is used to abut against the side wall 212 of one roadway and at least one support mechanism 140 is used to abut against the side wall 212 of the other roadway.

[0080] In one specific embodiment, there are four support mechanisms 140. Two of the four support mechanisms 140 are located on one side of the main frame 110 of the tunneling machine, abutting against one side of the roadway sidewall 212; the other two support mechanisms 140 are located on the other side of the main frame 110 of the tunneling machine, abutting against the other side of the roadway sidewall 212. In operation, the four support mechanisms 140 on both sides of the machine body (main frame 110 of the tunneling machine) can support the roadway sidewalls 212 on both sides. This design improves the stability of the tracked tunneling machine 100 during cutting on steep slopes (achieving machine body stability) and solves the problem of machine body swaying during steep slope cutting.

[0081] Optionally, the support mechanism 140 is a rotary structure, capable of rotating relative to the main frame 110 of the tunneling machine. The rotation angle of the support mechanism 140 ranges from ±30 degrees.

[0082] Optionally, the support mechanism 140 has a first working position and a second working position. The support mechanism 140 is capable of rotating relative to the main frame 110 of the tunneling machine between the first working position and the second working position.

[0083] When the support mechanism 140 is in the first working position, the support mechanism 140 is in a retracted state; when the support mechanism 140 is in the second working position, at least a portion of the support mechanism 140 can abut against the roadway sidewall 212 to improve stability in the cutting state.

[0084] The support mechanism 140 can also make fine adjustments to the attitude of the tracked tunneling machine 100 to improve its stability during operation.

[0085] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 10 , Figure 11 and Figure 12 As shown, the support mechanism 140 includes a support arm 141 and a support shoe 142. One end of the support arm 141 is rotatably connected to the main frame 110 of the tunneling machine. The support arm 141 can rotate relative to the main frame 110 of the tunneling machine to support the side walls 212 of the roadway on both sides in the working state, thereby stabilizing the machine body.

[0086] The support shoe 142 is located at the other end of the support arm 141, that is, at the end of the support arm 141 away from the main frame 110 of the tunneling machine. When the main frame 110 of the tunneling machine moves to the preset position, the support arm 141 and the support shoe 142 cooperate with each other to support the side walls 212 of the roadway on both sides in the working state, thereby stabilizing the machine body.

[0087] By setting the support shoe 142, it is beneficial to increase the contact area between the support mechanism 140 and the roadway sidewall 212, avoid local stress concentration, improve the stability of the tracked tunneling machine 100 in cutting under steep slope conditions, and solve the problem of body swaying during steep slope cutting.

[0088] In some embodiments, the tracked tunneling machine 100 may optionally include a hydraulic drive unit 130. The hydraulic drive unit 130 is disposed on the main frame 110 of the tunneling machine and is connected to the support arm 141. By providing the hydraulic drive unit 130, the support mechanism 140 can be driven to rotate relative to the main frame 110 of the tunneling machine.

[0089] In some embodiments, the surface of the support shoe 142 is optionally provided with a rubber layer. By providing a rubber layer, firstly, it is beneficial to increase the friction between the support shoe 142 and the roadway sidewall 212; secondly, the rubber layer can undergo elastic deformation to disperse stress, which is beneficial to improve the service life of the support mechanism 140.

[0090] In some embodiments, optionally, such as Figure 1 , Figure 10 , Figure 11 and Figure 12 As shown, the support shoe 142 includes a support plate 1421. The support plate 1421 is connected to the other end of the support arm 141, and at least one side of the support plate 1421 is bent toward the direction close to the main frame 110 of the tunneling machine.

[0091] Optionally, the support plate 1421 is a steel plate. By making the support plate 1421 a steel plate, it is beneficial to improve the structural strength of the support plate 1421 and effectively avoid the support plate 1421 from cracking during the process of abutting against the side wall 212 of the roadway.

[0092] By setting a support plate 1421, and bending at least one side of the support plate 1421 toward the direction close to the main frame 110 of the tunneling machine, it is beneficial to increase the contact area between the support mechanism 140 and the roadway sidewall 212, avoid local stress concentration, and improve the stability of the tracked tunneling machine 100 in cutting under steep slope conditions.

[0093] Furthermore, since at least one side of the support plate 1421 is bent toward the direction close to the main frame 110 of the tunneling machine, it can also prevent the support mechanism 140 from interfering with the components or devices of the tracked tunneling machine 100 during the rotation of the support mechanism 140 relative to the main frame 110 of the tunneling machine.

[0094] Optionally, the support plate 1421 has a rubber layer on the side opposite to the support arm 141. By providing a rubber layer, it is beneficial to absorb cutting vibration energy, disperse stress, and improve the service life of the support mechanism 140.

[0095] In some embodiments, optionally, such as Figure 1 , Figure 10 , Figure 11 and Figure 12 As shown, the support boot 142 has multiple anti-slip protrusions 1422.

[0096] Optionally, the anti-slip protrusion 1422 is provided on the support plate 1421 of the support shoe 142. The anti-slip protrusion 1422 and the support plate 1421 are an integral structure, which has better mechanical properties and higher connection strength than post-processing methods (such as welding), and is conducive to reducing the number of parts and improving assembly efficiency.

[0097] Normally, the surface of the roadway sidewall 212 is uneven. By setting anti-slip protrusions 1422, the anti-slip protrusions 1422 can play a certain role in interlocking with the uneven surface, which helps to maintain stable friction and ensure the stability of the tracked tunneling machine 100 in cutting under steep slope conditions.

[0098] Optionally, two adjacent anti-slip protrusions 1422 can be combined to form a "V" shape.

[0099] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the tracked tunneling machine 100 also includes a cutting section 150. The cutting section 150 is connected to the front end of the main frame 110 of the tunneling machine via a slewing mechanism 160. The slewing mechanism 160 is used to drive the cutting section 150 to rotate relative to the main frame 110 of the tunneling machine.

[0100] Optionally, the slewing mechanism 160 is detachably connected to the main frame 110 of the tunneling machine, which facilitates the disassembly and assembly of the slewing mechanism 160 by the staff and is beneficial for maintenance or replacement.

[0101] In one specific embodiment, the slewing mechanism 160 and the main frame 110 of the tunneling machine are detachably connected by bolts, which facilitates operation and makes disassembly and assembly easy.

[0102] Optionally, the cutting section 150 is connected to the slewing mechanism 160 by a pin, and the cutting section 150 can rotate relative to the main frame 110 of the tunneling machine around the axis of the pin.

[0103] The slewing mechanism 160 drives the cutting section 150 to rotate relative to the main frame 110 of the tunneling machine, so as to continuously adjust the posture of the cutting section 150 according to actual needs and improve cutting efficiency.

[0104] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 5 As shown, the cutting section 150 includes a cutting arm 152 and a cutting head 151. One end of the cutting arm 152 is connected to the rotary mechanism 160. The cutting head 151 is located at the other end of the cutting arm 152. The cutting head 151 is used to cut the rock mass at the working face.

[0105] Optionally, the cutting arm 152 is rotatably connected to the slewing mechanism 160. The cutting arm 152 is a telescopic structure, which changes the relative position between the cutting head 151 and the rock mass at the working face by extending or shortening.

[0106] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 3 As shown, the tracked tunneling machine 100 also includes a shovel plate section 170. The shovel plate section 170 is rotatably disposed at the front end of the main frame 110 of the tunneling machine, and is used to collect and cut materials.

[0107] The shovel section 170 is rotatable relative to the main frame 110 of the tunneling machine and is located below the cutting section 150. After the cutting section 150 fractures and cuts the rock mass at the tunnel face, the shovel section 170 can accumulate and collect the material that has fallen onto the bottom surface 211 of the tunnel. The accumulated and collected material is then transported out by the transport equipment 180.

[0108] In some embodiments, optionally, such as Figure 1 As shown, the tracked tunneling machine 100 also includes a transport device 180. One end of the transport device 180 is connected to the shovel plate section 170, and the transport device 180 passes through the main frame 110 of the tunneling machine. The transport device 180 is used to transport the material collected by the shovel plate section 170 out.

[0109] Optionally, the transport equipment 180 is located between the two track bodies 1212 to improve space utilization.

[0110] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0111] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0112] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0113] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A chain track type roadheader, characterized in that, include: Tunneling machine main frame (110); A tracked walking mechanism (120) is connected to the main frame (110) of the tunneling machine, and the tracked walking mechanism (120) is used to drive the main frame (110) of the tunneling machine to move; The tracked walking mechanism (120) includes: Pre-laid track (121) is laid on the bottom surface (211) of the tunnel; Multiple sprockets (122) are rotatably mounted on the main frame (110) of the tunneling machine. The sprockets (122) mesh with the pre-laid track (121). The sprockets (122) are used to travel on the pre-laid track (121) so that the main frame (110) of the tunneling machine can move relative to the bottom surface (211) of the roadway.

2. The chain-track roadheader according to claim 1, characterized in that The pre-laid track (121) includes: The track base (1211) is laid on the bottom surface (211) of the tunnel; Two parallel track bodies (1212) are provided on the track base (1211); At least one of the sprockets (122) engages with one of the track bodies (1212), and at least one of the sprockets (122) engages with another track body (1212); The sprocket (122) is used to travel on the track body (1212) so that the main frame (110) of the tunneling machine moves relative to the bottom surface (211) of the roadway.

3. The chain-track roadheader according to claim 1, characterized in that, Also includes: Multiple drive units (130) are provided on the main frame (110) of the tunneling machine. Each drive unit (130) is connected to a corresponding sprocket (122) to drive the sprocket (122) to rotate relative to the main frame (110) of the tunneling machine.

4. The chain-track roadheader according to claim 3, characterized in that The drive device (130) includes: A hydraulic motor (131) is installed on the main frame (110) of the tunneling machine; The first reducer (132) is located on the main frame (110) of the tunneling machine. The first reducer (132) is connected to the hydraulic motor (131) and the first reducer (132) is connected to the sprocket (122). The hydraulic motor (131) drives the sprocket (122) to rotate via the first reducer (132).

5. The chain-track roadheader according to any one of claims 1 to 4, characterized in that Also includes: At least two support mechanisms (140) are rotatably mounted on the main frame (110) of the tunneling machine, and the support mechanisms (140) are used to abut against the sidewall (212) of the roadway; When the main frame (110) of the tunneling machine moves to a preset position, at least one of the support mechanisms (140) is used to abut against one side of the roadway sidewall (212), and at least one of the support mechanisms (140) is used to abut against the other side of the roadway sidewall (212).

6. The chain-track roadheader according to claim 5, characterized in that The support mechanism (140) includes: Support arm (141), one end of which is rotatably connected to the main frame (110) of the tunneling machine; A support boot (142) is provided at the other end of the support arm (141); When the main frame (110) of the tunneling machine moves to the preset position, the support shoe (142) is used to abut against the sidewall (212) of the roadway.

7. The chain-track roadheader according to claim 6, characterized in that The support boot (142) includes: A support plate (1421) is connected to the other end of the support arm (141), and at least one side of the support plate (1421) is bent toward the main frame (110) of the tunneling machine.

8. The chain-track roadheader according to claim 6, characterized in that The support boot (142) is provided with multiple anti-slip protrusions (1422).

9. The chain-track roadheader according to any one of claims 1 to 4, characterized in that Also includes: A cutting section (150) is connected to the front end of the main frame (110) of the tunneling machine via a slewing mechanism (160). The slewing mechanism (160) is used to drive the cutting section (150) to rotate relative to the main frame (110) of the tunneling machine.

10. The chain-track roadheader according to any one of claims 1 to 4, characterized in that Also includes: The shovel plate (170) is rotatably disposed at the front end of the main frame (110) of the tunneling machine, and the shovel plate (170) is used to collect and cut materials.

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