Lifting driving shed and heading machine

Abstract

The invention provides a lifting driving shed and a heading machine, and relates to the technical field of heading machines. The multiple stand columns are arranged at intervals, the first ends of the stand columns are connected with the ceiling, and the second ends of the stand columns are connected with the heading machine body; the stand column comprises a telescopic outer barrel, a telescopic inner barrel and a lifting oil cylinder, the telescopic outer barrel is fixedly connected with the heading machine body, one end of the telescopic inner barrel is connected with the ceiling, the other end of the telescopic inner barrel is inserted into the telescopic outer barrel and slidably connected with the telescopic outer barrel, and the two ends of the lifting oil cylinder are connected with the telescopic inner barrel and the telescopic outer barrel respectively; the telescopic outer cylinder comprises four side plates which are sequentially connected, friction plates are arranged on the four side plates respectively, and the inner surfaces of the friction plates make contact with the outer surface of the telescopic inner cylinder. According to the technical scheme, in the up-down sliding process of the telescopic inner barrel, the friction force in the lifting process of the driving shed is reduced, the selection specification of the oil cylinder is reduced, and the machining area of the inner surface of the telescopic outer barrel is also reduced.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel boring machines, and in particular to a lifting driving shed and a tunnel boring machine. Background Art

[0002] Most tunnel projects such as highways and railways are medium-to-large cross-section tunnels. If a cantilever tunnel boring machine is used for construction, the overall dimensions of the tunnel boring machine will increase accordingly. During construction, a cantilever tunnel boring machine often needs to pass through the lower part of the arch trolley, which limits the height and width of the tunnel boring machine. Reducing the overall dimensions of the tunnel boring machine will affect the performance of the entire machine. Without affecting the performance of the entire machine, lowering the height of the protective cab canopy can improve the passability of the entire machine. The existing hydraulic lifting cab has a large contact area between the telescopic outer tube and the telescopic inner tube, which increases the production cost when the friction force occurs during the up and down movement of the telescopic inner tube. Summary of the invention

[0003] The embodiments according to the present application are intended to improve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, an object according to an embodiment of the present application is to provide a lifting cab.

[0005] Another object of an embodiment of the present application is to provide a tunnel boring machine.

[0006] In order to achieve the above-mentioned purpose, according to the technical solution of the first aspect of the present application, a lifting canopy is provided for a tunnel boring machine, the tunnel boring machine includes a tunnel boring machine body, and the lifting canopy includes: a ceiling; a plurality of columns, the plurality of columns are arranged at intervals, the first ends of the columns are connected to the ceiling, and the second ends of the columns are connected to the tunnel boring machine body; the columns include a telescopic outer cylinder, a telescopic inner cylinder and a lifting cylinder, the telescopic outer cylinder is fixedly connected to the tunnel boring machine body, one end of the telescopic inner cylinder is connected to the ceiling, and the other end is inserted in the telescopic outer cylinder and slidably connected to the telescopic outer cylinder, and the two ends of the lifting cylinder are respectively connected to the telescopic inner cylinder and the telescopic outer cylinder; the telescopic outer cylinder includes four side plates, the four side plates are connected in sequence, and friction plates are respectively provided on the four side plates, and the inner surface of the friction plate is in contact with the outer surface of the telescopic inner cylinder.

[0007] According to the lifting canopy provided by the present application, the lifting canopy includes a roof and a plurality of columns. The first end of the column is connected to the roof, and the second end of the column is connected to the tunnel boring machine body. The column includes a telescopic outer cylinder, a telescopic inner cylinder and a lifting cylinder. The telescopic inner cylinder is driven by the lifting cylinder to slide relative to the telescopic outer cylinder. When the tunnel boring machine passes through the arch frame trolley, the lifting canopy can be retracted, and the lifting canopy can be raised after the tunnel boring machine passes through the arch frame trolley, providing the operator with sufficient operating space and vision. The telescopic outer cylinder is welded into a rectangular structure by four side plates. A friction plate is welded on each side plate at the open end of the outer cylinder. The inner surfaces of the four friction plates of the outer cylinder are in contact with the outer surface of the telescopic inner cylinder. The telescopic inner cylinder is only in contact with the inner surfaces of the four friction plates. During the sliding up and down of the telescopic inner cylinder, the friction force during the lifting and lowering process of the lifting canopy is reduced, the cylinder selection specifications are reduced, and the processing area of ​​the inner surface of the telescopic outer cylinder is also reduced.

[0008] In addition, the technical solution provided by this application may also have the following additional technical features:

[0009] In some technical solutions, optionally, the telescopic inner tube includes a first channel steel plate and a second channel steel plate, and the first channel steel plate and the second channel steel plate are butt-welded with two grooves to form a rectangular structure.

[0010] In this technical solution, the telescopic inner cylinder includes a first channel steel plate and a second channel steel plate, and the first channel steel plate and the second channel steel plate are butt-welded with two grooves to form a rectangular structure. The telescopic inner cylinder is formed by bending two identical steel plates at two locations into a channel steel shape, and then butt-welding two grooves into a rectangular structure to improve the strength of the cylinder.

[0011] In some technical solutions, optionally, the lifting driving canopy also includes: a first flange, which is welded to one end of the telescopic outer cylinder close to the tunnel boring machine body; and a second flange, which is welded to one end of the telescopic inner cylinder close to the ceiling.

[0012] In this technical solution, the lifting canopy also includes a first flange and a second flange, and the first flange is welded to the end of the telescopic outer cylinder close to the tunnel boring machine body. The welded flange can improve the strength of the cylinder, and the flange is also used to fix the telescopic outer cylinder to the equipment. The second flange is welded to the end of the telescopic inner cylinder close to the ceiling. The flange is welded to one end of the telescopic inner cylinder to seal, which improves the strength of the cylinder and is also used to fix the telescopic inner cylinder to the ceiling.

[0013] In some technical solutions, optionally, the lifting cab further includes: a first pin shaft connecting the telescopic outer cylinder and the cylinder end of the lifting cylinder; and a second pin shaft connecting the telescopic inner cylinder and the cylinder rod end of the lifting cylinder.

[0014] In this technical solution, the lifting canopy further includes a first pin shaft and a second pin shaft, wherein the first pin shaft connects the telescopic outer cylinder with the cylinder end of the lifting cylinder, and the second pin shaft connects the telescopic inner cylinder with the cylinder rod end of the lifting cylinder.

[0015] In some technical solutions, optionally, a first circular through hole is provided at one end of the telescopic outer cylinder close to the first flange, and the first circular through hole is used to insert the first pin shaft; a second circular through hole is provided at one end of the telescopic inner cylinder close to the second flange, and the second circular through hole is used to insert the second pin shaft.

[0016] In this technical solution, a first round through hole is provided at one end of the telescopic outer cylinder close to the first flange. A second round through hole is provided at one end of the telescopic inner cylinder close to the second flange. A first pin passes through the first round through hole to connect the telescopic outer cylinder with the cylinder end of the lifting cylinder. A second pin passes through the second round through hole to connect the telescopic inner cylinder with the cylinder rod end of the lifting cylinder.

[0017] In some technical solutions, optionally, the rod end of the lifting cylinder is connected to the telescopic inner cylinder, and the cylinder end of the lifting cylinder is connected to the telescopic outer cylinder; the inner surface of the friction plate is a smooth plane, and the outer surface of the telescopic inner cylinder is a smooth plane.

[0018] In this technical solution, the rod end of the lifting cylinder is connected to the telescopic inner cylinder, and the cylinder end of the lifting cylinder is connected to the telescopic outer cylinder. The inner surface of the friction plate is a smooth plane, and the outer surface of the telescopic inner cylinder is a smooth plane, which reduces the friction during the lifting process of the cab, reduces the specifications of the cylinder, and also reduces the processing area of ​​the inner surface of the telescopic outer cylinder.

[0019] In some technical solutions, optionally, the number of the columns is two, and the two columns are symmetrically arranged along the axis of the tunnel boring machine.

[0020] In this technical solution, there are two columns, which are symmetrically arranged along the axis of the tunnel boring machine. Two telescopic outer cylinders, a telescopic inner cylinder and a lifting cylinder are symmetrically arranged along the axis of the tunnel boring machine, and the flange end of the telescopic outer cylinder is fixed directly above the machine.

[0021] In some technical solutions, optionally, the lifting cab further includes: two third flanges, the third flanges are arranged on the ceiling and are used to connect with the second flange, and the center distance between the two third flanges is the same as the center distance of the fixed position of the telescopic outer cylinder.

[0022] In this technical solution, the lifting cab also includes two third flanges, which are arranged on the ceiling and are used to connect with the second flange. The center distance between the two third flanges is the same as the center distance of the fixed position of the telescopic outer cylinder. Specifically, two flanges are symmetrically welded along the axis of the tunnel boring machine at the lower middle and rear part of the ceiling to connect with the flange end of the telescopic inner cylinder. The center distance between the two flanges of the ceiling is the same as the center distance of the fixed position of the telescopic outer cylinder above the machine. The flange end of the telescopic inner cylinder is fixed with the ceiling flange by bolts after docking.

[0023] According to the technical solution of the second aspect of the present application, a tunnel boring machine is provided, including: a tunnel boring machine body; and a lifting driving canopy as in any one of the technical solutions in the first aspect of the present application, which is arranged on the tunnel boring machine body.

[0024] The tunnel boring machine provided by the technical solution of the present application comprises a tunnel boring machine body and a lifting driving canopy as in any technical solution of the first aspect of the present application, and thus it has all the beneficial effects of the lifting driving canopy as in any technical solution of the first aspect of the present application, which will not be described in detail here. The tunnel boring machine comprises a tunnel boring machine.

[0025] In some technical solutions, optionally, the tunnel boring machine also includes: a seat, which is arranged on the tunnel boring machine body; and an operating table, which is arranged on the tunnel boring machine body.

[0026] In this technical solution, the tunnel boring machine further comprises a seat and an operating table, wherein the seat is arranged on the tunnel boring machine body and the operating table is arranged on the tunnel boring machine body.

[0027] Additional aspects and advantages of the embodiments according to the present application will become apparent in the following description or will be understood through the practice of the embodiments according to the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic cross-sectional structural diagram of a lifting cab according to an embodiment provided by the present application;

[0029] Figure 2 is a schematic diagram of a partial cross-sectional structure of a column according to an embodiment provided by the present application;

[0030] Figure 3 is a schematic diagram of the main structure of a tunnel boring machine according to another embodiment provided by the present application;

[0031] Figure 4 It is a schematic cross-sectional structure diagram of a lifting cab according to an embodiment provided in the present application.

[0032] in, Figures 1 to 4 The corresponding relationship between the reference numerals and component names in the figure is:

[0033] 10: lifting cab; 110: ceiling; 120: column; 130: lifting cylinder; 140: telescopic outer cylinder; 142: side plate; 144: friction plate; 150: telescopic inner cylinder; 152: first slot steel plate; 154: second slot steel plate; 160: first flange; 170: second flange; 180: first pin shaft; 190: second pin shaft; 210: first round through hole; 220: second round through hole; 230: third flange; 30: tunnel boring machine; 310: tunnel boring machine body; 320: seat; 330: operating table. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present application, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the features of the embodiments of the present application can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments of the present application. However, the embodiments of the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection provided by the embodiments of the present application is not limited to the specific embodiments disclosed below.

[0036] Refer to the following Figures 1 to 4 Some embodiments provided according to the present application are described.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, a lifting driving canopy 10 proposed according to an embodiment of the present application is used for a tunnel boring machine 30, the tunnel boring machine 30 includes a tunnel boring machine body 310, and the lifting driving canopy 10 includes a ceiling 110 and a plurality of columns 120. Specifically, the plurality of columns 120 are arranged at intervals, the first end of the column 120 is connected to the ceiling 110, and the second end of the column 120 is connected to the tunnel boring machine body 310. The column 120 includes a telescopic outer cylinder 140, a telescopic inner cylinder 150 and a lifting cylinder 130, the telescopic outer cylinder 140 is fixedly connected to the tunnel boring machine body 310, one end of the telescopic inner cylinder 150 is connected to the ceiling 110, and the other end is inserted in the telescopic outer cylinder 140 and slidably connected to the telescopic outer cylinder 140, and the two ends of the lifting cylinder 130 are respectively connected to the telescopic inner cylinder 150 and the telescopic outer cylinder 140. The telescopic outer cylinder 140 includes four side plates 142 , which are connected in sequence. The four side plates 142 are respectively provided with friction plates 144 , and the inner surfaces of the friction plates 144 are in contact with the outer surface of the telescopic inner cylinder 150 .

[0038] The lifting cab 10 provided in this embodiment includes a roof 110 and a plurality of columns 120. The first end of the column 120 is connected to the roof 110, and the second end of the column 120 is connected to the tunnel boring machine body 310. The column 120 includes a telescopic outer cylinder 140, a telescopic inner cylinder 150 and a lifting cylinder 130. The lifting cylinder 130 drives the telescopic inner cylinder 150 to slide relative to the telescopic outer cylinder 140, so that the lifting cab 10 can be retracted when the tunnel boring machine 30 passes through the arch trolley, and the lifting cab 10 can be raised after the tunnel boring machine 30 passes through the arch trolley, providing the operator with sufficient operating space and vision. The telescopic outer cylinder 140 is welded into a rectangular structure by four side plates 142. A friction plate 144 is welded on a hole in each side plate 142 at the open end of the outer cylinder. The inner surfaces of the four friction plates 144 of the outer cylinder are in contact with the outer surface of the telescopic inner cylinder 150. The telescopic inner cylinder 150 is only in contact with the inner surfaces of the four friction plates 144. During the up and down sliding of the telescopic inner cylinder 150, the friction force during the lifting and lowering process of the lifting cab 10 is reduced, the specifications of the oil cylinder are reduced, and the processing area of ​​the inner surface of the telescopic outer cylinder 140 is also reduced.

[0039] In some embodiments, the telescopic inner cylinder 150 includes a first channel steel plate 152 and a second channel steel plate 154, and the first channel steel plate 152 and the second channel steel plate 154 are butt-welded with two grooves to form a rectangular structure. The telescopic inner cylinder 150 is formed by bending two identical steel plates at two locations into a channel steel shape, and then butt-welding two grooves into a rectangular structure to improve the strength of the cylinder.

[0040] In some embodiments, the lifting canopy 10 may further include a first flange 160 and a second flange 170, wherein the first flange 160 is welded to one end of the telescopic outer cylinder 140 close to the tunnel boring machine body 310. The welded flange can improve the strength of the cylinder, and the flange is also used for the fixed connection between the telescopic outer cylinder 140 and the equipment. The second flange 170 is welded to one end of the telescopic inner cylinder 150 close to the ceiling 110. The flange is welded to one end of the telescopic inner cylinder 150 to seal, improve the strength of the cylinder, and also be used for the fixed connection between the telescopic inner cylinder 150 and the ceiling 110.

[0041] In some embodiments, the lifting canopy 10 may further include a first pin 180 and a second pin 190 , wherein the first pin 180 connects the telescopic outer cylinder 140 with the cylinder end of the lifting cylinder 130 , and the second pin 190 connects the telescopic inner cylinder 150 with the cylinder rod end of the lifting cylinder 130 .

[0042] In some embodiments, optionally, a first round through hole 210 is provided at one end of the telescopic outer cylinder 140 close to the first flange 160. A second round through hole 220 is provided at one end of the telescopic inner cylinder 150 close to the second flange 170. The first pin 180 passes through the first round through hole 210 to connect the telescopic outer cylinder 140 to the cylinder end of the lifting cylinder 130. The second pin 190 passes through the second round through hole 220 to connect the telescopic inner cylinder 150 to the cylinder rod end of the lifting cylinder 130.

[0043] In some embodiments, optionally, the cylinder rod end of the lifting cylinder 130 is connected to the telescopic inner cylinder 150, and the cylinder end of the lifting cylinder 130 is connected to the telescopic outer cylinder 140. The inner surface of the friction plate 144 is a smooth plane, and the outer surface of the telescopic inner cylinder 150 is a smooth plane, which reduces the friction during the lifting process of the cab, reduces the cylinder selection specifications, and also reduces the processing area of ​​the inner surface of the telescopic outer cylinder 140.

[0044] In some embodiments, optionally, there are two columns 120, and the two columns 120 are symmetrically arranged along the axis of the tunnel boring machine 30. The two telescopic outer cylinders 140, the telescopic inner cylinder 150 and the lifting cylinder 130 are symmetrically arranged along the axis of the tunnel boring machine 30, and the flange end of the telescopic outer cylinder 140 is fixed directly above the machine.

[0045] In some embodiments, the lifting canopy 10 may further include two third flanges 230, which are provided on the ceiling 110 and are used to connect with the second flange 170. The center distance between the two third flanges 230 is the same as the center distance between the fixed positions of the telescopic outer cylinder 140. Specifically, two flanges are symmetrically welded along the axis of the tunnel boring machine at the lower middle and rear part of the ceiling 110 to connect with the flange end of the telescopic inner cylinder 150. The center distance between the two flanges of the ceiling 110 is the same as the center distance between the fixed positions of the telescopic outer cylinder 140 above the machine. The flange end of the telescopic inner cylinder 150 is fixed with the flange of the ceiling 110 by bolts after docking.

[0046] like Figure 3 As shown, a tunnel boring machine 30 proposed according to an embodiment of the present application includes a tunnel boring machine body 310 and a lifting cab 10 as in any of the above embodiments, and the lifting cab 10 is arranged on the tunnel boring machine body 310 .

[0047] The tunnel boring machine 30 provided according to the embodiment of the present application includes a lifting cab 10, which is arranged on the tunnel boring machine body 310, such as the lifting cab 10 of any of the above embodiments, so it has all the beneficial effects of the lifting cab 10 of any of the above embodiments, which will not be repeated here. Among them, the tunnel boring machine 30 includes a tunnel boring machine.

[0048] In some embodiments, optionally, the tunnel boring machine 30 further includes a seat 320 and an operating console 330, wherein the seat 320 is disposed on the tunnel boring machine body 310. The operating console 330 is disposed on the tunnel boring machine body 310.

[0049] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to a specific embodiment of the lifting driving canopy 10 proposed in the present application, a lifting driving canopy 10 for a tunnel boring machine is designed. When the tunnel boring machine passes through the arch trolley, the driving canopy is retracted, and after the tunnel boring machine passes through the arch trolley, the driving canopy is raised to provide the operator with sufficient operating space and vision.

[0050] The lifting cab 10 is mainly composed of two columns 120 and a ceiling 110. Each column 120 includes a telescopic outer cylinder 140, a telescopic inner cylinder 150 and a lifting cylinder 130 and other main components.

[0051] The telescopic outer cylinder 140 is welded into a rectangular structure by four side plates 142, and a flange is welded at one end to improve the strength of the cylinder body and the flange is also used to fix the outer cylinder with the equipment. A friction plate 144 is welded on each side plate 142 at the open end of the outer cylinder. The inner surfaces of the four friction plates 144 of the outer cylinder need to contact the outer surface of the telescopic inner cylinder 150, so the inner surfaces of the four friction plates 144 of the outer cylinder need to be processed into a smooth plane. In this way, the telescopic inner cylinder 150 only contacts the inner surfaces of the four friction plates 144, which reduces the friction force during the lifting process of the cab, and also reduces the processing area of ​​the inner surface of the telescopic outer cylinder 140. The hole at the flange end is used to pass the pin shaft.

[0052] The telescopic inner cylinder 150 is made of two identical steel plates, which are bent at two places to form a channel steel shape, and then butt-welded with two grooves to form a rectangular structure. A flange is welded at one end to seal it. While improving the strength of the cylinder, the flange is also used to fix the inner cylinder with the ceiling 110. After welding, the outer surface that contacts the outer cylinder friction plate 144 is processed into a smooth plane. A hole is opened at the flange end for the pin shaft to pass through.

[0053] The cylinder rod end of the lifting cylinder 130 penetrates from the open end of the telescopic inner cylinder 150 and is connected to the telescopic inner cylinder 150 through a pin shaft. The two telescopic inner cylinders 150 and the lifting cylinder 130 slide into the telescopic outer cylinder 140 from the open end of the outer cylinder axis, and then the cylinder end of the lifting cylinder 130 is connected to the telescopic outer cylinder 140 through a pin shaft. The open end of the outer cylinder is the inner cylinder protruding end, and the inner cylinder opening end is the lifting cylinder 130 penetration end. In this way, the telescopic inner cylinder 150 and the telescopic outer cylinder 140 are connected together through the lifting cylinder 130.

[0054] The two telescopic outer cylinders 140, the telescopic inner cylinder 150 and the lifting cylinder 130 are symmetrically arranged along the axis of the tunnel boring machine. The flange end of the telescopic outer cylinder 140 is fixed directly above the machine, and the flange end of the telescopic inner cylinder 150 is connected to the flange of the ceiling 110 and fixed by bolts.

[0055] Two flanges are symmetrically welded along the axis of the tunnel boring machine at the lower middle and rear part of the ceiling 110 to connect the flange ends of the telescopic inner cylinder 150. The center distance between the two flanges of the ceiling 110 is the same as the center distance of the fixed position of the telescopic outer cylinder 140 above the machine.

[0056] After the lifting cab 10 is installed, the lifting column 120 is on both sides of the operating platform 330 and the seat 320. When the operator gets on and off the seat 320, ensure that the column 120 does not hinder the operator's passage.

[0057] like Figure 1 As shown, specifically, the lifting cab 10 is mainly composed of two columns 120 and a ceiling 110. Each column 120 includes a telescopic outer cylinder 140, a telescopic inner cylinder 150 and a lifting cylinder 130 and other main components.

[0058] The telescopic outer cylinder 140 is welded into a rectangular structure by four side plates 142, and a flange is welded at one end for sealing. The welded flange can improve the strength of the cylinder, and the flange is also used for fixing the outer cylinder to the equipment.

[0059] A through hole is opened at the flange end of the telescopic outer cylinder 140 , and a pin passes through the through hole to connect the telescopic outer cylinder 140 with the cylinder end of the lifting cylinder 130 .

[0060] like Figure 2 As shown, a friction plate 144 is welded on each side plate 142 at the open end of the outer cylinder, and the inner surfaces of the four friction plates 144 of the outer cylinder need to contact the outer surface of the telescopic inner cylinder 150, so the inner surfaces of the four friction plates 144 of the outer cylinder need to be processed into a smooth plane. In this way, the telescopic inner cylinder 150 does not directly contact the side plates 142 of the telescopic outer cylinder 140, but only contacts the inner surfaces of the four friction plates 144. During the up and down sliding of the telescopic inner cylinder 150, the friction force during the lifting and lowering of the cab is reduced, the oil cylinder selection specifications are reduced, and the processing area of ​​the inner surface of the telescopic outer cylinder 140 is also reduced.

[0061] The telescopic inner tube 150 is made of two identical steel plates bent at two places into a channel steel shape, and then butted and V-welded with two grooves to form a rectangular structure. A flange is welded at one end to seal it. While improving the strength of the tube, the flange is also used for fixing the inner tube and the ceiling 110.

[0062] A through hole is opened at the flange end of the telescopic inner cylinder 150, and a pin passes through the through hole to connect the telescopic inner cylinder 150 with the cylinder rod end of the lifting cylinder 130.

[0063] After welding, the outer surface in contact with the outer cylinder friction plate 144 is processed into a smooth plane.

[0064] The cylinder rod end of the lifting cylinder 130 is inserted from the open end of the telescopic inner cylinder 150 and connected to the telescopic inner cylinder 150 through a pin. The two telescopic inner cylinders 150 carry the lifting cylinder 130 and slide into the telescopic outer cylinder 140 from the axis open end of the telescopic outer cylinder 140, and then the cylinder end of the lifting cylinder 130 is connected to the telescopic outer cylinder 140 through a pin. The open end of the telescopic inner cylinder 150 is the insertion end of the lifting cylinder 130, and the open end of the telescopic outer cylinder 140 is the inner cylinder extension end. In this way, the telescopic inner cylinder 150 is connected to the telescopic outer cylinder 140 through the lifting cylinder 130.

[0065] The two telescopic outer cylinders 140, the telescopic inner cylinder 150 and the lifting cylinder 130 are symmetrically arranged along the axis of the tunnel boring machine. The flange end of the telescopic outer cylinder 140 is fixed directly above the machine, and the flange end of the telescopic inner cylinder 150 is connected to the flange of the ceiling 110 and fixed by bolts.

[0066] Two flanges are symmetrically welded along the axis of the tunnel boring machine at the lower middle rear of the ceiling 110 to connect the flange ends of the telescopic inner cylinder 150. The center distance between the two flanges of the ceiling 110 is the same as the center distance of the fixed position of the telescopic outer cylinder 140 above the machine.

[0067] like Figure 3 As shown, after the lifting cab 10 is installed, the lifting columns 120 are on both sides of the operating platform 330 seat 320. When the operator gets on and off the seat 320, ensure that the columns 120 do not hinder the operator's passage.

[0068] In addition, the lifting canopy 10 can also be supported by three or four columns 120. The cylinder end of the lifting cylinder 130 is connected to the telescopic inner cylinder 150, and the cylinder rod end is connected to the telescopic outer cylinder 140, that is, the cylinder is inverted. The telescopic outer cylinder 140 and the telescopic inner cylinder 150 are circular tubular structures.

[0069] In summary, the beneficial effects of the embodiments of the present application are:

[0070] 1. A friction plate is welded on each side plate of the outer tube opening. The inner surfaces of the four friction plates of the outer tube need to contact the outer surface of the telescopic inner tube, so the inner surfaces of the four friction plates of the outer tube need to be processed into a smooth plane. In this way, the telescopic inner tube does not directly contact the side plates of the telescopic outer tube, but only contacts the inner surfaces of the four friction plates.

[0071] 2. The telescopic inner tube is made of two identical steel plates that are bent at two places into a channel shape, and then butt-welded with two grooves to form a rectangular structure.

[0072] In the embodiments according to the present application, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments according to the present application can be understood according to the specific circumstances.

[0073] In the description of the embodiments of the present application, it needs to be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the referred device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the embodiments of the present application.

[0074] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example according to the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] The above are only preferred embodiments of the present application and are not intended to limit the embodiments of the present application. For those skilled in the art, various modifications and changes may be made to the embodiments of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A lifting canopy, characterized in that: Used for a tunnel boring machine, the tunnel boring machine comprises a tunnel boring machine body (310), and the lifting driving canopy comprises: Ceiling (110); A plurality of columns (120), wherein the plurality of columns (120) are arranged at intervals, wherein a first end of the column (120) is connected to the ceiling (110), and a second end of the column (120) is connected to the tunnel boring machine body (310); The column (120) comprises a telescopic outer cylinder (140), a telescopic inner cylinder (150) and a lifting cylinder (130); the telescopic outer cylinder (140) is fixedly connected to the tunnel boring machine body (310); one end of the telescopic inner cylinder (150) is connected to the ceiling (110), and the other end is inserted into the telescopic outer cylinder (140) and slidably connected to the telescopic outer cylinder (140); and both ends of the lifting cylinder (130) are respectively connected to the telescopic inner cylinder (150) and the telescopic outer cylinder (140); The telescopic outer cylinder (140) comprises four side plates (142), the four side plates (142) are connected in sequence, and the four side plates (142) are respectively provided with friction plates (144), and the inner surfaces of the friction plates (144) are in contact with the outer surface of the telescopic inner cylinder (150).

2. The lifting canopy according to claim 1, characterized in that: The telescopic inner cylinder (150) comprises a first channel steel plate (152) and a second channel steel plate (154); the first channel steel plate (152) and the second channel steel plate (154) are butt-welded with two grooves to form a rectangular structure.

3. The lifting canopy according to claim 1, characterized in that: Also includes: A first flange (160) is welded to an end of the telescopic outer cylinder (140) close to the tunnel boring machine body (310); The second flange (170) is welded to an end of the telescopic inner cylinder (150) close to the ceiling (110).

4. The lifting canopy according to claim 3, characterized in that: Also includes: A first pin shaft (180) connecting the telescopic outer cylinder (140) and the cylinder end of the lifting cylinder (130); The second pin shaft (190) connects the telescopic inner cylinder (150) and the cylinder rod end of the lifting cylinder (130).

5. The lifting canopy according to claim 4, characterized in that: A first round through hole (210) is provided at one end of the telescopic outer cylinder (140) close to the first flange (160), and the first round through hole (210) is used for inserting the first pin shaft (180); A second round through hole (220) is provided at one end of the telescopic inner cylinder (150) close to the second flange (170), and the second round through hole (220) is used for inserting the second pin shaft (190).

6. The lifting shed according to any one of claims 1 to 5, characterized in that: The cylinder rod end of the lifting cylinder (130) is connected to the telescopic inner cylinder (150), and the cylinder barrel end of the lifting cylinder (130) is connected to the telescopic outer cylinder (140); The inner surface of the friction plate (144) is a smooth plane, and the outer surface of the telescopic inner cylinder (150) is a smooth plane.

7. The lifting shed according to any one of claims 3 to 5, characterized in that: The number of the columns (120) is two, and the two columns (120) are symmetrically arranged along the axis of the tunnel boring machine.

8. The lifting canopy according to claim 7, characterized in that: Also includes: Two third flanges (230), the third flanges (230) are arranged on the ceiling (110) and are used to be connected to the second flange (170), and the center distance between the two third flanges (230) is the same as the center distance of the fixed position of the telescopic outer cylinder (140).

9. A tunnel boring machine, characterized in that: include: A tunnel boring machine body (310); The lifting cab as claimed in any one of claims 1 to 8 is arranged on the tunnel boring machine body (310).

10. The tunnel boring machine according to claim 9, characterized in that: Also includes: A seat (320) is arranged on the tunnel boring machine body (310); An operating console (330) is arranged on the tunnel boring machine body (310).

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