Heading machine supporting device, trailer and heading machine

Abstract

The utility model belongs to the technical field of tunneling, and particularly provides a tunneling machine supporting device, a trailer and a tunneling machine. The supporting device of the heading machine comprises a chassis, the chassis comprises a rack, the rack is provided with a gripper shoe installation base used for installing a gripper shoe unit, the rack is further connected with a walking mechanism, the gripper shoe installation base and the rack are connected through at least three floating oil cylinders, the walking mechanism is hinged to the rack, and the hinge axis extends in the front-back direction of the chassis. A swing driving mechanism used for driving the walking mechanism to swing is further connected between the walking mechanism and the machine frame. The heading machine trailer comprises a chassis consistent with the structure. The heading machine comprises at least one of the heading machine supporting device and the trailer. The position relation of the chassis walking mechanism and the related mounting base or supporting base above the chassis walking mechanism can be flexibly adjusted, and the obstacle avoidance device has better obstacle avoidance capacity and is suitable for geological tunneling of broken surrounding rocks.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel excavation, in particular to a tunnel boring machine support device, a trailer and a tunnel boring machine. Background Art

[0002] In tunnel construction, it is often necessary to dig out tunnels for personnel activities and ventilation. Such tunnels generally have the characteristics of short single length, close spacing, large number of excavations, and multi-sided cross-sections. Since full-section tunnel boring machines have the advantages of high excavation efficiency and good safety, they are now also being used in the above-mentioned relatively complex underground cavern projects.

[0003] Unlike traditional long-distance tunnel construction projects, complex underground cavern projects require multiple dismantling of the machine after completing a certain section of excavation tasks, and the machine needs to be moved to a new construction location, which means frequent transfers, which places high demands on the flexibility of the machine. Traditional full-section tunnel boring machines have complex structures, carry a lot of equipment, and require a lot of disassembly and assembly work. In addition, the space inside the tunnel is small, and it is difficult to arrange large lifting and disassembly tools.

[0004] In order to solve the above problems, the Chinese utility model patent with authorization announcement number CN213928368U (publication date: 2021.08.10) provides a self-advancing tunnel boring machine, which includes a self-advancing chassis and a front shield. The chassis has a support shoe mounting plate for installing a support shoe unit, and the support shoe mounting plate is installed with a support shoe unit. The support shoe unit can hold the tunnel wall tightly, and a thrust cylinder is connected between the support shoe unit and the front shield. When the support shoe unit holds the tunnel wall tightly, it can provide stable support for the thrust cylinder. At this time, the chassis and the support shoe unit constitute a support device that provides reaction force support for the thrust cylinder. When the tunneling task is completed and the site needs to be transferred, since the support device can move by itself, the disassembly of the machine parts can be reduced, and the support device can move to a new construction position by itself.

[0005] The surrounding rock geology of different tunnels is different. When actually excavating in a broken surrounding rock area, some slag from the tunnel wall will fall and gather at the bottom of the tunnel. For the above-mentioned tunnel boring machine, the position of the traveling mechanism on its chassis relative to the frame (chassis body) cannot be adjusted. Some slag that falls on the travel path of the traveling mechanism will affect the movement of the chassis. It is necessary to clear the slag at the bottom before it can move normally. The passability is poor, and in severe cases it will cause shutdown, which is inefficient. Moreover, even if the chassis can pass through the slag, since the position of the support shoe unit and the chassis relative to the height direction is fixed, the slag under the chassis will raise the chassis and also increase the height of the support shoe unit. This will easily cause the arc-shaped shoe plate of the support shoe to be unable to fit with the tunnel wall, making it difficult to ensure a stable support effect.

[0006] In addition, for the trailers that are equipped later, the slag at the bottom of the tunnel will also affect the trailer's forward movement. Moreover, during normal excavation, even if the chassis can pass through the slag, it will cause the relevant equipment on the trailer, such as the belt conveyor, to increase in height, making it difficult to smoothly overlap and cooperate with the main machine, affecting the discharge of slag. Utility Model Content

[0007] The purpose of the utility model is to provide a supporting device for a roadheader, so as to solve the technical problems in the prior art that the supporting device for a self-propelled roadheader has insufficient chassis flexibility, weak obstacle crossing ability, and affects the stable fit between the support shoe and the tunnel wall when passing over slag. The purpose of the utility model is also to provide a roadheader trailer, so as to solve the technical problems that the supporting device for a roadheader has insufficient chassis flexibility, weak obstacle crossing ability, and affects the coordination between the supporting equipment and the main machine when passing over slag.

[0008] The utility model also aims to provide a tunneling machine to solve at least one of the above technical problems.

[0009] In order to achieve the above-mentioned purpose, the technical solution of the tunnel boring machine support device provided by the utility model is:

[0010] A tunnel boring machine support device comprises a chassis, the chassis comprises a frame, the frame is provided with a support shoe mounting seat for mounting a support shoe unit, the frame is also connected to a walking mechanism, the support shoe mounting seat and the frame are connected by at least three floating cylinders, the walking mechanism is hinged on the frame, the hinge axis extends along the front and rear direction of the chassis, and a swing drive mechanism for driving the walking mechanism to swing is also connected between the walking mechanism and the frame.

[0011] The beneficial effect is that the utility model belongs to an improved invention. By setting up a chassis with a walking mechanism, the basic mobility requirements of the supporting device are guaranteed. Since the support shoe mounting seat and the frame are connected by at least three floating cylinders, controlling the extension and retraction of the floating cylinders can change the distance between the frame and the support shoe mounting seat. When excavating in broken rock geology, if there is fallen slag at the bottom of the tunnel that has affected the normal movement of the walking mechanism, the support shoes on the support shoe mounting seat can hold the tunnel wall tightly and lift the frame upward. At the same time, with the swing of the walking mechanism, the frame can be lifted to a higher position, thereby avoiding the slag and ensuring the passage of the walking mechanism; if the walking mechanism can pass over the slag, the floating cylinder can be adjusted at this time to move the position of the support shoe downward to ensure that the support shoe plate can be stably fitted with the tunnel wall to ensure the support effect.

[0012] As a further improvement, both ends of the floating cylinder are hinged to the support shoe mounting seat and the frame respectively.

[0013] The beneficial effect is that the tilt angle between the support shoe mounting seat and the frame can be adjusted at this time, so that the frame can not only move straight up and down but also swing forward and backward or left and right, with a larger range of activities, further improving the obstacle avoidance capability.

[0014] As a further improvement, both ends of the floating oil cylinder are respectively hinged to the support shoe mounting seat and the frame through a universal hinge structure.

[0015] The beneficial effect is that at this time, the support shoe mounting seat and the frame can swing in any direction, front and back, left and right, further improving flexibility.

[0016] As a further improvement, the floating cylinders are arranged in groups of two, and the two floating cylinders in a group are arranged crosswise.

[0017] In order to achieve the above-mentioned purpose, the technical solution of the tunnel boring machine trailer provided by the utility model is:

[0018] A tunnel boring machine trailer comprises a chassis, which comprises a frame. The frame is provided with an equipment support seat for carrying corresponding equipment behind the tunnel boring machine. The frame is also connected with a traveling mechanism. The equipment support seat and the frame are connected by at least three floating cylinders. The traveling mechanism is hinged on the frame, and the hinge axis extends along the front and rear direction of the chassis. A swing driving mechanism is also connected between the traveling mechanism and the frame for driving the traveling mechanism to swing.

[0019] The beneficial effect is that the utility model belongs to an improved invention. When the trailer is moving normally, if the bottom slag affects the passage of the trailer, the swing angle of the walking mechanism can be adjusted and the expansion and contraction of the floating cylinder can be coordinated to move the frame to a higher position to avoid obstacles and improve the passing capacity; if the trailer can pass through the bottom slag, the height of the floating cylinder can be adjusted to move the position of the equipment support seat downward to ensure that the position of the supporting equipment can correspond to the main machine and cooperate smoothly.

[0020] As a further improvement, both ends of the floating cylinder are hinged to the equipment support base and the frame respectively.

[0021] The beneficial effect is that the tilt angle between the support shoe mounting seat and the frame can be adjusted at this time, so that the frame can not only move straight up and down but also swing forward and backward or left and right, with a larger range of activities, further improving the obstacle avoidance capability.

[0022] As a further improvement, both ends of the floating oil cylinder are respectively hinged to the equipment support base and the frame through a universal hinge structure.

[0023] The beneficial effect is that at this time, the support shoe mounting seat and the frame can swing in any direction, front and back, left and right, further improving flexibility.

[0024] As a further improvement, the floating cylinders are arranged in groups of two, and the two floating cylinders in a group are arranged crosswise.

[0025] In order to achieve the above-mentioned purpose, the technical solution of the tunnel boring machine provided by the utility model is:

[0026] A roadheader includes a main machine and a rear supporting device, a main machine supporting device, the rear supporting device includes a trailer, the supporting device includes a chassis, the chassis includes a frame, a shoe mounting seat for mounting a shoe unit is provided on the frame, a walking mechanism is also connected to the frame, the shoe mounting seat and the frame are connected by at least three floating oil cylinders, the walking mechanism is hinged on the frame, the hinge axis extends along the front-rear direction of the chassis, and a swing driving mechanism for driving the walking mechanism to swing is also connected between the walking mechanism and the frame. And / or the trailer includes a chassis, the chassis includes a frame, an equipment supporting seat for carrying the rear supporting device of the roadheader is provided on the frame, a walking mechanism is also connected to the frame, the equipment supporting seat and the frame are connected by at least three floating oil cylinders, the walking mechanism is hinged on the frame, the hinge axis extends along the front-rear direction of the chassis, and a swing driving mechanism for driving the walking mechanism to swing is also connected between the walking mechanism and the frame.

[0027] The beneficial effect is that the utility model belongs to an improved invention. By setting up a chassis with a walking mechanism, the basic mobility requirements of the supporting device are guaranteed. Since the support shoe mounting seat and the frame are connected by at least three floating cylinders, controlling the extension and retraction of the floating cylinders can change the distance between the frame and the support shoe mounting seat. When excavating in broken rock geology, if there is fallen slag at the bottom of the tunnel that has affected the normal movement of the walking mechanism, the support shoes on the support shoe mounting seat can hold the tunnel wall tightly and lift the frame upward. At the same time, with the swing of the walking mechanism, the frame can be lifted to a higher position, thereby avoiding the slag and ensuring the passage of the walking mechanism; if the walking mechanism can pass over the slag, the floating cylinder can be adjusted at this time to move the position of the support shoe downward to ensure that the support shoe plate can be stably fitted with the tunnel wall to ensure the support effect. When the trailer is moving normally, if the bottom debris affects the passage of the trailer, the swing angle of the walking mechanism can be adjusted and the extension and retraction of the floating cylinder can be coordinated to move the frame to a higher position to avoid obstacles and improve the passing capacity; if the trailer can pass through the bottom debris, the height of the floating cylinder can be adjusted and the position of the equipment support seat can be moved down to ensure that the position of the supporting equipment can correspond to the main machine and cooperate smoothly.

[0028] As a further improvement, both ends of the floating cylinder are hinged to the support shoe mounting seat and the frame respectively.

[0029] The beneficial effect is that the tilt angle between the support shoe mounting seat and the frame can be adjusted at this time, so that the frame can not only move straight up and down but also swing forward and backward or left and right, with a larger range of activities, further improving the obstacle avoidance capability.

[0030] As a further improvement, both ends of the floating oil cylinder are respectively hinged to the support shoe mounting seat and the frame through a universal hinge structure.

[0031] The beneficial effect is that at this time, the support shoe mounting seat and the frame can swing in any direction, front and back, left and right, further improving flexibility.

[0032] As a further improvement, the floating cylinders are arranged in groups of two, and the two floating cylinders in a group are arranged crosswise.

[0033] As a further improvement, both ends of the floating cylinder are hinged to the equipment support base and the frame respectively.

[0034] The beneficial effect is that the tilt angle between the support shoe mounting seat and the frame can be adjusted at this time, so that the frame can not only move straight up and down but also swing forward and backward or left and right, with a larger range of activities, further improving the obstacle avoidance capability.

[0035] As a further improvement, both ends of the floating oil cylinder are respectively hinged to the equipment support base and the frame through a universal hinge structure.

[0036] The beneficial effect is that at this time, the support shoe mounting seat and the frame can swing in any direction, front and back, left and right, further improving flexibility.

[0037] As a further improvement, the floating cylinders are arranged in groups of two, and the two floating cylinders in a group are arranged crosswise.

[0038] As a further improvement, the supporting device and the trailer are connected via a connecting piece.

[0039] The beneficial effect is that the traveling power of the trailer and the supporting device can be transmitted to each other, and the arrangement of the driving parts can be reduced when the power is sufficient, or the power of the two can be superimposed and coupled to expand more power combinations. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of an embodiment of a tunnel boring machine in the utility model;

[0041] Figure 2 for Figure 1 Structural diagram of the AA section;

[0042] Figure 3 for Figure 1 Schematic diagram of the structure of the BB section.

[0043] Description of reference numerals:

[0044] 1. Front shield; 2. Main machine belt conveyor; 3. Support device; 4. Chassis; 5. Trailer; 6. Muck truck; 7. Tunnel; 31. Propulsion cylinder; 32. Shoe plate; 33. Shoe support cylinder; 34. Shoe support mounting seat; 41. Floating cylinder; 42. Frame; 43. Swing cylinder; 44. Track; 51. Rear supporting belt conveyor; 52. Equipment support seat; 53. Connectors; 54. Rear supporting equipment. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the embodiments.

[0046] For underground complex cavern projects in broken rock areas, the walking mechanism needs to meet the mobility of the tunnel boring machine while also meeting the requirement of good passability. The basic technical concept of the utility model is to provide a support device that can flexibly adjust the height of the walking mechanism and the position of the support shoe, and to provide a trailer that can flexibly adjust the height of the walking mechanism and the position of the rear supporting equipment.

[0047] Specific embodiment 1 of the tunnel boring machine provided by the utility model:

[0048] like Figure 1 As shown, the tunnel boring machine in this embodiment includes a main machine and a rear supporting system. The main machine includes a front shield 1, a cutter disc, a thrust cylinder 31 and a supporting device 3, etc. The supporting device 3 includes a plurality of support shoe units. The thrust cylinder 31 is connected between the supporting device and the front shield 1. When the support shoes of the support shoe units hold the cave wall tightly, the thrust cylinder 31 extends forward to push the front shield 1 and the cutter disc forward to break the rock. The specific tunneling principle is the existing technology and will not be elaborated here.

[0049] like Figure 2 As shown, the support device 3 also includes a chassis 4 capable of self-propelled, and the chassis 4 includes a frame 42, and the frame 42 is connected to a traveling mechanism. The traveling mechanism configured in this embodiment is a crawler 44. In other embodiments, the traveling mechanism can also be a sliding shoe or a rubber wheel, etc., which can realize the forward movement of the chassis 4 relative to the bottom of the tunnel. The traveling mechanism is hingedly mounted on the frame 42, and the movement direction of the chassis is defined as the front-to-back direction. The hinge axis of the traveling mechanism extends along the front-to-back direction, and a swing driving mechanism that drives the traveling mechanism to swing around the hinge point is also provided between the traveling mechanism and the frame 42. The swing driving mechanism in this embodiment is a swing cylinder 43. In other embodiments, the swing driving mechanism can also select an electric push rod, or a rotary motor coaxial with the hinge axis, etc.

[0050] The frame 42 is provided with a shoe mounting seat 34 for mounting the shoe unit. Specifically, the shoe mounting seat 34 can be a mounting plate or a mounting frame, as long as the shoe unit can be mounted. The shoe mounting seat 34 and the frame 42 are connected by a floating cylinder 41. In order to satisfy the supporting function of the floating cylinder 41 on the shoe mounting seat 34, at least three floating cylinders 41 should be arranged. Specifically, the floating cylinders 41 are arranged in groups of two, and the two floating cylinders 41 in a group are arranged crosswise. The floating cylinder 41 can be extended and retracted up and down to change the distance between the shoe mounting seat 34 and the frame 42, which is equivalent to adjusting the height of the shoe unit. The shoe unit can specifically be a shoe unit in the prior art, such as Figure 2 The support shoe cylinder 33 and the shoe plate 32 connected to the support shoe cylinder 33 are arranged vertically in the middle, and the support shoe cylinder 33 can be fixed on the support shoe mounting seat 34. The support shoe cylinder 33 is extended, and the shoe plate 32 holds the tunnel wall tightly, so that the support device 3 can be kept in a fixed position to provide a stable reverse thrust for the propulsion cylinder 31.

[0051] During the actual excavation process, when encountering a broken rock area, slag falls to the bottom of the tunnel, causing the chassis to sink into the slag and affecting the normal step-changing walking of the mechanism, at this time, the shoe unit can hold the tunnel wall tightly, the floating cylinder 41 is retracted upward, the frame 42 is lifted, and the swing cylinder 43 cooperates with the telescopic movement synchronously to push the walking mechanism to swing downward to ensure that it can fit with the tunnel wall, so as to ensure that the frame 42 can avoid the slag at the bottom. If the slag does not affect the walking mechanism, but in order to avoid the chassis 4 from rising and driving the shoe unit position to rise, during the actual excavation, when the shoe unit is retracted, the floating cylinder 41 can be retracted, the distance between the shoe mounting seat 34 and the frame 42 can be shortened, and the shoe unit can be adjusted to a state where it can just fit with the tunnel wall 7, which is equivalent to a floating shoe. This can also ensure that when the chassis is at different heights, the shoe unit can have the best support state. Or when the waist of the tunnel is a surrounding rock that cannot be compressed, the position of the frame and the walking mechanism can also be adjusted downward to avoid the broken surrounding rock at the waist of the tunnel. In addition, during the excavation process, when the support shoe unit is extended, the chassis 4 can also be completely lifted up without contacting the bottom of the tunnel. This can prevent the strong vibration of rock breaking from being transmitted to the floating cylinder 41, and can better protect the chassis.

[0052] Regarding the specific installation method of the floating cylinder 41, this embodiment provides a method of installation through a universal hinge structure. Specifically, the two ends of the floating cylinder 41 are hinged to the shoe mounting seat 34 and the frame 42 respectively. At this time, in addition to the straight up and down cooperation between the shoe mounting seat 34 and the frame 42, it can also be offset and swung in any direction of front, back, left, and right, with better flexibility. For example, if there is slag on one side at this time, the frame 42 can be adjusted to swing left or right as a whole to avoid the slag. Or when it is necessary to excavate an inclined shaft, the frame 42 can also be adjusted to swing backward as a whole, lift the shoe unit, and avoid the shoe from colliding with the starting point of the inclined shaft. In other embodiments, according to the actual needs of the project, if there is no need to transfer the inclined shaft, and only the slag needs to be avoided, a pin-shaft hinge method can also be adopted. At this time, the pin axis extends in the front-to-back direction, and the frame 42 can be swung left and right. Or when there is actually a need for the transfer of the inclined shaft, a pin-shaft hinge method can also be adopted. At this time, the pin axis extends in the left-right direction, and the frame 42 can be swung forward and backward.

[0053] It should be noted that, in some embodiments, the floating cylinder 41 can even be fixed at both ends between the frame 42 and the support shoe mounting seat 34. In this case, the support shoe and the walking mechanism can also float up and down to meet the basic obstacle avoidance and support requirements.

[0054] The specific structure of the trailer 5 is as follows: Figure 1 and Figure 3 As shown, it also includes a chassis, and the specific structure of the chassis is consistent with the relevant embodiments of the above-mentioned support device, and will not be described in detail. At this time, the other end of the floating cylinder 41 is connected to the equipment support base 52, and the equipment support base 52 is used to install the corresponding supporting equipment, such as the rear supporting belt conveyor 51 or other rear supporting equipment 54.

[0055] During the excavation process, if the bottom slag blocks the passage of the trailer, the swing cylinder 43 can cooperate with the telescopic movement to push the frame 42 to a higher position to avoid the slag. At the same time, the floating cylinder 41 adjusts the height position of the equipment support seat 52 to ensure that the rear supporting belt conveyor 51 can smoothly overlap and cooperate with the main belt conveyor 2, ensuring that the slag can be smoothly transported to the muck truck.

[0056] When the floating cylinder 41 is hingedly installed, the equipment support base 52 swings relative to the frame 42, which ensures flexible passage while also ensuring that the rear supporting equipment 54 is in a stable balance state. Figure 1 Only one trailer is shown in the figure. In fact, the number of trailers can be more than two depending on the requirements of the supporting equipment.

[0057] The support device 3 and the first trailer 5 are connected by a connector 53, which can be used as a force-bearing member to transmit power, and can be a towing cylinder or a connecting rod. In this way, a more flexible power combination for the support device and the trailer can be obtained. At this time, part of the driving device that drives the walking mechanism on the trailer 5 to move, such as a motor, can be omitted, and the trailer 5 is pulled forward by the support device. When it is necessary to transfer, the connector 53 is removed, and other tractors are used to pull the trailer out of the tunnel 7. Of course, in other embodiments, if each trailer and support device are equipped with a self-driving system, it is actually possible not to use a connector to connect the trailer and the support device 3.

[0058] The specific embodiment 2 of the tunnel boring machine provided by the utility model mainly differs from the embodiment 1 in that: in the embodiment 1, the supporting device of the tunnel boring machine and the chassis of the trailer both adopt the setting of floating oil cylinders. In this embodiment, the supporting device is consistent with the supporting device of the tunnel boring machine, but the trailer still uses a traditional trailer, and the corresponding rear supporting equipment can be flexibly arranged on the equipment support seat, and the position of the rear supporting equipment relative to the trailer can be adjusted separately to meet the matching connection with the main machine part.

[0059] The specific embodiment 3 of the tunnel boring machine provided by the utility model is mainly different from the embodiment 1 in that: in the embodiment 1, the supporting device of the tunnel boring machine and the chassis of the trailer are both provided with floating oil cylinders. In this embodiment, the main engine adopts the traditional main engine form, such as the main engine in the patent application with the application publication number CN114876481A of the applicant, but the trailer adopts the trailer of the embodiment 1, and naturally has the same effect as the trailer in the embodiment 1.

[0060] Specific embodiments of the tunnel boring machine support device in the utility model:

[0061] The supporting device of the tunnel boring machine is consistent with the supporting device in the above-mentioned tunnel boring machine embodiment and will not be described in detail here.

[0062] Specific embodiment of the tunnel boring machine trailer in the utility model:

[0063] The trailer of the tunnel boring machine is the same as the trailer in the above-mentioned tunnel boring machine embodiment and will not be described in detail here.

[0064] 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 tunnel boring machine support device, comprising a chassis (4), the chassis (4) comprising a frame (42), a gripper shoe mounting seat (34) for mounting a gripper shoe unit being provided on the frame (42), and a walking mechanism being connected to the frame (42), characterized in that: The support shoe mounting seat (34) and the frame (42) are connected via at least three floating cylinders (41); the walking mechanism is hinged on the frame (42); the hinge axis extends along the front-rear direction of the chassis (4); and a swing drive mechanism for driving the walking mechanism to swing is also connected between the walking mechanism and the frame (42).

2. The tunnel boring machine support device according to claim 1, characterized in that: The two ends of the floating oil cylinder (41) are respectively hinged to the support shoe mounting seat (34) and the frame (42).

3. The tunnel boring machine support device according to claim 2, characterized in that: Both ends of the floating oil cylinder (41) are respectively hinged to the support shoe mounting seat (34) and the frame (42) through a universal hinge structure.

4. The tunnel boring machine support device according to claim 2 or 3, characterized in that: The floating oil cylinders (41) are arranged in groups of two, and the two floating oil cylinders (41) in a group are arranged crosswise.

5. A roadheader trailer, comprising a chassis (4), the chassis (4) comprising a frame (42), the frame (42) being provided with an equipment support seat (52) for carrying equipment corresponding to the roadheader, the frame (42) being further connected with a walking mechanism, characterized in that: The equipment support base (52) and the frame (42) are connected via at least three floating cylinders (41); the walking mechanism is hinged on the frame (42); the hinge axis extends along the front-rear direction of the chassis (4); and a swing drive mechanism for driving the walking mechanism to swing is also connected between the walking mechanism and the frame (42).

6. The roadheader trailer according to claim 5, characterized in that: The two ends of the floating oil cylinder (41) are respectively hinged to the equipment support base (52) and the frame (42).

7. The roadheader trailer according to claim 6, characterized in that: Both ends of the floating oil cylinder (41) are respectively hinged to the equipment support seat (52) and the frame (42) through a universal hinge structure.

8. The roadheader trailer according to claim 5 or 6, characterized in that: The floating oil cylinders (41) are arranged in groups of two, and the two floating oil cylinders (41) in a group are arranged crosswise.

9. A tunnel boring machine, comprising a main machine and a rear set, wherein the main machine comprises a supporting device and the rear set comprises a trailer, characterized in that: The supporting device is the tunnel boring machine supporting device in any one of claims 1-4 and / or the trailer is the tunnel boring machine trailer in any one of claims 5-8.

10. The tunnel boring machine according to claim 9, characterized in that: The supporting device and the trailer are connected via a connecting piece (53).

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