Longitudinal supporting type climbing auxiliary device and heading machine

Abstract

The invention discloses a longitudinal supporting type climbing auxiliary device and a heading machine. The auxiliary device comprises a supporting frame, a connecting frame, a front telescopic oil cylinder, a rear telescopic oil cylinder, a top shoe, a bottom shoe and a supporting oil cylinder. Through the movable connecting frame and the adjustable top boot and bottom boot, the device can adapt to roadway conditions with different gradients and heights; the top shoe and the bottom shoe can be in direct contact with a roadway top plate and a roadway bottom plate through operation, and unstable factors of the heading machine in the cutting process are reduced; the front telescopic oil cylinder and the rear telescopic oil cylinder provide advancing and retreating power for the heading machine and assist the heading machine in stably advancing or retreating in a large-gradient roadway. Through the synergistic effect of the structures, the tunneling machine can perform tunneling operation quickly, stably and safely in a large-gradient roadway, and the tunneling efficiency is improved; due to the design of the whole device, the heading machine can still keep an efficient working state under the large-gradient condition, and the problems that due to the large gradient, the heading machine is difficult to climb, low in cutting efficiency and the like are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal mine tunnel equipment, and in particular relates to a longitudinal support type climbing auxiliary device. Background Art

[0002] my country is a major coal producer and consumer in the world, and coal will remain the main energy source for a long time to come. In coal mine tunneling and room-and-pillar mining, cantilevered roadheaders are most widely used. In mining areas such as Shaanxi, Inner Mongolia, Ningxia and Xinjiang in the west, due to the geological characteristics of coal occurrence, coal seams are often distributed at large angles and steep inclinations, and the layout of the fully-mechanized mining face will present a large slope. A survey of the Shanghai Temple mining area in Inner Mongolia found that the maximum slope of the fully-mechanized mining face has reached 40°, which brings great inconvenience to the tunneling of the cutting eye.

[0003] In the excavation of general ventilation tunnels and transportation tunnels in coal mines, tunnels with slopes greater than 18° also account for a certain proportion. The survey found that most tunneling machines on the market are adapted to tunnel slopes of ±16°, and it is very difficult for tunneling machines to excavate or travel in tunnels greater than ±16°. And as the proportion of rock tunnels increases, it becomes more difficult for tunneling machines to complete walking and cutting in tunnels greater than ±16°.

[0004] With the development of coal mining machinery, researchers have developed many auxiliary devices for tunneling machines suitable for large slopes. They often use winches to pull tunneling machines for tunneling. However, accidents of wire rope fatigue damage and injuries also occur from time to time. Such equipment is tending to be eliminated in coal mines. When tunneling uphill, only manual drilling and blasting methods can be used. Blasting tunneling has the disadvantages of slow tunneling speed, poor tunnel formation, high safety risks, and high labor intensity. It is not the future development direction of coal mine tunneling.

[0005] Therefore, under the premise of huge market demand, in order to realize the comprehensive mechanized excavation of steep slope tunnels in coal mines and to enable tunnel boring machines to adapt to the development of underground tunnels under steep slope geological conditions, it is urgent to improve the excavation efficiency of steep slope tunnels and improve excavation safety. Summary of the invention

[0006] The purpose of the present invention is to provide a longitudinal support type climbing auxiliary device to solve the problems of complex technical procedures, poor adaptability, poor safety, increased labor intensity of workers and low efficiency in the prior art.

[0007] A first aspect of the disclosed embodiment provides a longitudinal support type climbing auxiliary device for assisting a tunnel boring machine in climbing a slope in a tunnel; the auxiliary device comprises:

[0008] A support frame extending in a vertical direction;

[0009] A connecting frame, used for fixed connection with the tunnel boring machine, the connecting frame is provided with a long hole, and the connecting frame is movably mounted on the supporting frame through the long hole;

[0010] A front telescopic oil cylinder, the front end of which is hinged to the front end of the connecting frame, and the rear end of which is hinged to the supporting frame;

[0011] A rear telescopic oil cylinder, the front end of which is hinged to the support frame, and the rear end of which is hinged to the rear end of the connecting frame;

[0012] A top shoe, used to be fixed to the top support of the tunnel, the top shoe is mounted on the support frame and can slide along the support frame;

[0013] A bottom shoe, used to be fixed to the slope support of the laneway, the bottom shoe being mounted on the support frame and being able to slide along the support frame;

[0014] A supporting oil cylinder is installed on the supporting frame, the top end of the supporting oil cylinder is fixedly connected to the top shoe, and the bottom end of the supporting oil cylinder is fixedly connected to the bottom shoe.

[0015] Optionally, the auxiliary device further includes a shaft, and the connecting frame is movably mounted on the supporting frame via the shaft.

[0016] Optionally, the auxiliary device further includes a baffle, which is mounted on one end of the shaft body, the baffle and the support frame are respectively located on both sides of the connecting frame, and the minimum width of the baffle is greater than the width of the long hole.

[0017] Optionally, the top shoe is provided with a supporting surface, and the supporting surface is an upwardly convex curved surface.

[0018] Optionally, the bottom shoe is provided with an abutment surface, and the abutment surface is an arc surface convex downward.

[0019] Optionally, the support frame is a square steel structure, and the top shoe is provided with a first connecting portion connected to the supporting oil cylinder, and an outer diameter of the first connecting portion is greater than an inner diameter of the support frame.

[0020] Optionally, the support frame is a square steel structure, the bottom shoe is provided with a second connecting portion connected to the supporting oil cylinder, and the outer diameter of the second connecting portion is greater than the inner diameter of the support frame.

[0021] Optionally, a hinge point between the front telescopic oil cylinder and the support frame is located above the long hole, and a hinge point between the rear telescopic oil cylinder and the support frame is located above the long hole.

[0022] A first aspect of an embodiment of the present disclosure provides a roadheader, the roadheader comprising a longitudinally supported slope climbing assist device as described above.

[0023] Optionally, the tunnel boring machine includes a tunnel boring body and two longitudinally supported climbing auxiliary devices; the two longitudinally supported climbing auxiliary devices are respectively fixedly installed on the left and right sides of the tunnel boring body.

[0024] The main technical effects achieved by the embodiments of the present disclosure are: through the movable connecting frame and the adjustable top shoe and bottom shoe, the device can adapt to tunnel conditions of different slopes and heights; the top shoe and the bottom shoe provide direct contact with the tunnel, reducing the instability factors of the tunnel boring machine during the climbing process; the front telescopic cylinder and the rear telescopic cylinder provide the tunnel boring machine with forward and backward power, helping the tunnel boring machine to work effectively in tunnels with large slopes; through the synergistic effect of the above-mentioned structures, the tunnel boring machine can quickly, stably and safely carry out tunneling operations in tunnels with large slopes, thereby improving the tunneling efficiency; the design of the entire device improves the tunnel boring machine's ability to travel and cut in tunnels with large slopes, so that the tunnel boring machine can still maintain an efficient working state under large slope conditions, reducing mechanical failures and maintenance costs caused by large slopes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a longitudinal support type climbing assistance device in one embodiment of the present disclosure Figure 1 ;

[0026] Figure 2 A schematic diagram of a longitudinal support type climbing assistance device in one embodiment of the present disclosure Figure 2 ;

[0027] Figure 3 This is a schematic structural diagram of a tunnel boring machine in one embodiment of the present disclosure;

[0028] Figure 4 A state diagram of a tunnel boring machine in one embodiment of the present disclosure Figure 1 ;

[0029] Figure 5 A state diagram of a tunnel boring machine in one embodiment of the present disclosure Figure 2 ;

[0030] Figure 6 A state diagram of a tunnel boring machine in one embodiment of the present disclosure Figure 3 ;

[0031] Figure 7 This is a structural schematic diagram of a support frame in one embodiment of the present disclosure;

[0032] Figure 8 It is a schematic diagram of the structure of a top shoe in one embodiment of the present disclosure;

[0033] Fig. 9 It is a schematic structural diagram of a bottom boot in one embodiment of the present disclosure.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. front cylinder barrel pin; 2. front telescopic cylinder; 3. connecting frame; 4. front cylinder rod pin; 5. bottom shoe; 6. bottom shoe pin; 7. supporting frame; 8. rear cylinder rod pin; 9. rear telescopic cylinder; 10. rear cylinder barrel pin; 11. top shoe; 12. supporting cylinder; 13. top shoe pin; 14. baffle; 15. shaft body. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The modes described in the following exemplary embodiments do not represent all modes consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0036] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the present disclosure specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate a quantitative limitation, but indicate that there is at least one, and if only "one" is referred to, it will be separately described. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0037] like Figure 1As shown, the first aspect of the embodiment of the present disclosure provides a longitudinal support type climbing auxiliary device for assisting a tunnel boring machine in climbing a slope in a tunnel; the auxiliary device includes a support frame 7, a connecting frame 3, a front telescopic cylinder 2, a rear telescopic cylinder 9, a top shoe 11, a bottom shoe 5 and a support cylinder 12.

[0038] The support frame 7 extends in the vertical direction; this design enables the support frame 7 to adapt to tunnels of different heights and provide a stable support point for the tunnel boring machine.

[0039] The connecting frame 3 is used for fixed connection with the tunnel boring machine. The connecting frame 3 is provided with a long hole, and the connecting frame 3 is movably mounted on the supporting frame 7 through the long hole; the connecting frame 3 is movably mounted on the supporting frame 7 through the long hole. This design allows the connecting frame 3 to slide on the supporting frame 7 to adapt to tunnels with different slopes, thereby increasing the adaptability and flexibility of the device.

[0040] The front end of the front telescopic cylinder 2 is hinged to the front end of the connecting frame 3, and the rear end is hinged to the support frame 7; the front end of the rear telescopic cylinder 9 is hinged to the support frame 7, and the rear end is hinged to the rear end of the connecting frame 3; the front telescopic cylinder 2 and the rear telescopic cylinder 9 are hinged to the connecting frame 3 and the support frame 7 respectively. This layout provides the thrust and pulling force required for the tunnel boring machine when climbing, helping the tunnel boring machine to overcome gravity and cutting resistance, and achieve stable walking and cutting in steep slope tunnels.

[0041] The top shoe 11 is used to be fixed to the top support of the tunnel. The top shoe 11 is installed on the support frame 7 and can slide along the support frame 7; the bottom shoe 5 is used to be fixed to the slope support of the tunnel. The bottom shoe 5 is installed on the support frame 7 and can slide along the support frame 7; the top shoe 11 and the bottom shoe 5 are fixed to the top and slope supports of the tunnel respectively. This design provides additional stability to prevent the tunnel boring machine from sliding or tipping over during climbing.

[0042] The support cylinder 12 is mounted on the support frame 7, and the top end of the support cylinder 12 is fixedly connected to the top shoe 11, and the bottom end of the support cylinder 12 is fixedly connected to the bottom shoe 5. The top end of the support cylinder 12 is fixedly connected to the top shoe 11, and the bottom end is fixedly connected to the bottom shoe 5. This design allows the support cylinder 12 to adjust the positions of the top shoe 11 and the bottom shoe 5 to adapt to different roadway conditions, while providing the necessary support force to ensure the stability of the tunnel boring machine.

[0043] Therefore, through the movable connecting frame 3 and the adjustable top shoe 11 and bottom shoe 5, the device can adapt to tunnel conditions of different slopes and heights; the top shoe 11 and the bottom shoe 5 provide direct contact with the tunnel, reducing the instability factors of the tunnel boring machine during the climbing process; the front telescopic cylinder 2 and the rear telescopic cylinder 9 provide the tunnel boring machine with forward and backward power, helping the tunnel boring machine to work effectively in tunnels with large slopes; through the synergistic effect of the above-mentioned structures, the tunnel boring machine can carry out tunneling operations quickly, stably and safely in tunnels with large slopes, thereby improving the tunneling efficiency; the design of the entire device enables the tunnel boring machine to maintain an efficient working state under large slope conditions, reducing mechanical failures and maintenance costs caused by large slopes; thereby, the tunnel boring machine can still walk and cut normally when the slope is ≥16°, thereby improving the working efficiency of the hard rock tunnel boring machine, thereby achieving rapid tunneling and ensuring the working efficiency of mechanical equipment.

[0044] As an optional embodiment, the auxiliary device further includes a shaft 15, and the connecting frame 3 is movably mounted on the supporting frame 7 through the shaft 15. By adding the shaft 15 instead of adopting a square structure, it is possible to avoid the front telescopic oil cylinder 2 and the rear telescopic oil cylinder 9 being out of sync, causing damage due to uneven force, and at the same time, the shaft 15 can be used to place the column-type supporting oil cylinder 12 in an inclined state by adjusting the front telescopic oil cylinder 2 and the rear telescopic oil cylinder 9, thereby reducing the height of the auxiliary device, improving its adaptability, and being applicable to different types of tunneling machines.

[0045] As an optional embodiment, the auxiliary device further includes a baffle 14, which is mounted on one end of the shaft 15, and the baffle 14 and the support frame 7 are respectively located on both sides of the connecting frame 3, and the minimum width of the baffle 14 is greater than the width of the long hole. The addition of the baffle 14, especially its minimum width is greater than the width of the long hole, has the technical effect of providing additional stability and safety, preventing the support frame 7 from detaching from the slideway, and ensuring the stability of the device during use.

[0046] Specifically, in the present embodiment, the baffle 14 is a circular baffle 14, and is fixed to the shaft 15 by bolts, so that the entire device limits the support frame 7 through the connecting frame 3 and the circular baffle 14, so that the support frame 7 can only slide in the track groove of the connecting frame 3 and move relative to the connecting frame 3, that is, the longitudinal support type climbing assist device and the tunnel boring machine move relative to each other, thereby realizing the forward and backward movement of the tunnel boring machine when the longitudinal support type climbing assist device is fixed.

[0047] like Figure 8 As shown, as an optional embodiment, the top shoe 11 is provided with a supporting surface, and the supporting surface is an upwardly convex arc surface. Such a setting increases the contact area between the top shoe 11 and the top of the tunnel, improves the friction between the top shoe 11 and the top of the tunnel, and enhances the stability of the support.

[0048] like Fig. 9As shown, the bottom shoe 5 is provided with an abutting surface, which is a downwardly convex arc surface. Such a configuration increases the contact area between the bottom shoe 5 and the lane slope, improves the friction between the bottom shoe 5 and the lane slope, and enhances the stability of the support.

[0049] In order to further enhance the stability of the bottom shoe 5 and the top shoe 11, pick teeth may be welded on the supporting surface and the abutting surface to increase the friction.

[0050] It should be noted that, in other embodiments, the support surface of the top shoe 11 may also be a plane, a concave-convex surface or other shapes, and the abutment surface of the bottom shoe 5 may also be a plane, a concave-convex surface or other shapes. The present disclosure is not limited to this.

[0051] like Figure 7 As shown, as an optional embodiment, the support frame 7 is a square steel structure, and the top shoe 11 is provided with a first connecting portion connected to the supporting cylinder 12, and the outer diameter of the first connecting portion is larger than the inner diameter of the support frame 7; the support frame 7 is a square steel structure, and the outer diameter of the first connecting portion connecting the top shoe 11 and the supporting cylinder 12 is larger than the inner diameter of the support frame 7. The technical effect is that it provides structural strength and stability, while limiting the movement of the top shoe 11, ensuring the fixation of the top shoe 11 on the supporting cylinder 12.

[0052] As an optional embodiment, the support frame 7 is a square steel structure, and the bottom shoe 5 is provided with a second connection portion connected to the support oil cylinder 12, and the outer diameter of the second connection portion is larger than the inner diameter of the support frame 7. The outer diameter of the second connection portion connecting the bottom shoe 5 and the support oil cylinder 12 is larger than the inner diameter of the support frame 7, and the technical effect is to provide structural strength and stability, while limiting the movement of the bottom shoe 5, ensuring the fixation of the bottom shoe 5 on the support oil cylinder 12.

[0053] As an optional embodiment, the hinge point between the front telescopic oil cylinder 2 and the support frame 7 is located above the long hole, and the hinge point between the rear telescopic oil cylinder 9 and the support frame 7 is located above the long hole. Through such an arrangement, when the tunnel boring machine travels on a large slope, the reaction force of the front telescopic oil cylinder 2 and the rear telescopic oil cylinder 9 on the support frame 7 causes the bottom shoe 5 to rotate upward and the top shoe 11 to rotate downward, thereby making the bottom shoe 5 more stable with the roadway slope and the top shoe 11 more stable with the roadway top.

[0054] The assembly steps of the longitudinal support type hill climbing assist device are as follows:

[0055] With the connecting frame 3 as the base, the supporting frame 7 is first inserted into the long hole in the middle of the connecting frame 3 .

[0056] Then, the circular baffle 14 is connected to one side of the cylindrical body of the support frame 7 by using the shaft 15 and bolts. The diameter of the circular baffle 14 is much larger than the width of the long hole to ensure that the support frame 7 will not fall off the slideway. Figure 2As shown, the support frame 7 is finally fixed with tools to prevent it from tipping over.

[0057] Secondly, install the front telescopic cylinder 2, connect the front telescopic cylinder barrel to the connecting frame 3 with the front cylinder barrel pin 1, and fix the front cylinder barrel pin 1 to the pin mounting seat of the connecting frame 3 with bolts, connect the front telescopic cylinder 2 rod to the support frame 7 with the front cylinder rod pin 4, and fix the front cylinder rod pin 4 to the pin mounting seat of the support frame 7 with bolts.

[0058] Similarly, install the rear telescopic cylinder 9, connect the rear telescopic cylinder barrel to the connecting frame 3 with the rear cylinder barrel pin 10, and fix the rear cylinder barrel pin 10 to the pin mounting seat of the connecting frame 3 with bolts, connect the rear telescopic cylinder rod to the support frame 7 with the rear cylinder rod pin 8, and fix the rear cylinder rod pin 8 to the pin mounting seat of the support frame 7 with bolts.

[0059] The top shoe 11 is connected to the supporting oil cylinder 12 by a pin shaft 13, and the pin shaft and the top shoe 11 are fixed by bolts.

[0060] Insert the supporting oil cylinder 12 with the top shoe 11 into the supporting frame 7. Since the size of the square steel of the top shoe 11 is larger than the supporting frame 7, it has a limiting effect and will not fall.

[0061] Extend the cylinder rod of the supporting oil cylinder 12, connect the bottom shoe 5 to the supporting oil cylinder 12 with the pin 6, and fix the pin and the bottom shoe 5 with bolts. At this point, the longitudinal support type climbing assist device for the tunnel boring machine is installed. Figure 3 As shown, when the longitudinal support type climbing assistance device 17 is used, the longitudinal support type climbing assistance device 17 suitable for the tunnel boring machine is fixed to the side of the walking mechanism of the tunnel boring machine 16 with high-strength bolts 18. A group of longitudinal support type climbing assistance devices are provided on each side of the tunnel boring machine, and the hydraulic hoses reserved in advance are connected before the support type climbing assistance actuator can be operated.

[0062] The second aspect of the disclosed embodiment provides a tunnel boring machine, which includes a longitudinal support type climbing assistance device as described above. The tunnel boring machine includes a tunnel boring body and two longitudinal support type climbing assistance devices; the two longitudinal support type climbing assistance devices are respectively fixedly installed on the left and right sides of the tunnel boring body.

[0063] In the actual working process, when the tunneling equipment is cutting coal and rock during the process of climbing up the mountain, it is unable to cut the coal and rock due to the small walking traction and the difficulty in climbing. After the longitudinal support type climbing assist device is installed on both sides of the tunneling machine track, the device can be used to provide forward power for the tunneling equipment. First, when the tunneling machine goes up the mountain, the front telescopic cylinder 2 of the longitudinal support type climbing assist device is retracted, and the rear telescopic cylinder 9 is extended. The support frame 7 is at the front end of the sliding track groove of the connecting frame 3 and is perpendicular to the tunnel roof and the connecting frame. By telescoping the support cylinder 12, the bottom shoe and the top shoe are sequentially contacted with the tunnel roof and the connecting frame, and a larger supporting force is achieved, such as Figure 4 As shown. Secondly, by operating the hydraulic handle reserved in advance, the front telescopic cylinder 2 is extended, and the thrust acts on the support frame 7, and its reaction force acts on the tunnel boring machine. The thrust of the front telescopic cylinder 2 provides the tunnel boring machine with forward power. Similarly, by operating the hydraulic handle reserved in advance, the rear telescopic cylinder 9 is retracted, and the pulling force acts on the support frame 7, and its reaction force acts on the tunnel boring machine. The pulling force of the rear telescopic cylinder 9 provides the tunnel boring machine with forward power. Finally, the front telescopic cylinder 2 and the rear telescopic cylinder 9 can make the tunnel boring machine move in a steep tunnel and cut coal and rock. As shown Figure 5 As shown, after the tunnel boring machine moves forward for one cycle, the support frame 7 will be shifted to the rear end of the sliding track groove of the connecting frame 3. At this time, the support cylinder 12 can be retracted to lower the height of the longitudinal support type climbing auxiliary device, and then the support frame 7 is shifted to the front end of the sliding track groove of the connecting frame 3 through the action of the front telescopic cylinder 2 and the rear telescopic cylinder 9, and the bottom and top are supported to enter the next cycle.

[0064] On the contrary, when the tunnel boring machine goes down the mountain and needs to retreat for cutting and walking, its operating principle is the same as that of going up the mountain for cutting and walking. The support frame 7 needs to be moved to the rear end of the sliding track groove of the connecting frame 3, and then the bottom and top are supported, and then the tunnel boring machine is reversed through the action of the front and rear telescopic cylinders.

[0065] like Figure 6 As shown, when the excavation equipment is in a horizontal tunnel, the support frame 7 can also be tilted to a certain angle through the front telescopic cylinder 2 and the rear telescopic cylinder 9 to reduce the height of the longitudinal support type climbing assist device and improve the adaptability of the longitudinal support type climbing assist device.

[0066] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A longitudinal support type climbing assist device for assisting a roadheader in climbing a slope in a tunnel; characterized in that: The auxiliary device comprises: a support frame extending in a vertical direction; A connecting frame, used for fixed connection with the tunnel boring machine, the connecting frame is provided with a long hole, and the connecting frame is movably mounted on the supporting frame through the long hole; A front telescopic oil cylinder, the front end of which is hinged to the front end of the connecting frame, and the rear end of which is hinged to the supporting frame; A rear telescopic oil cylinder, the front end of which is hinged to the support frame, and the rear end of which is hinged to the rear end of the connecting frame; A top shoe, used for fixing to the top support of the tunnel, the top shoe being mounted on the support frame and being able to slide along the support frame; A bottom shoe, used for fixing to the slope support of the roadway, the bottom shoe being mounted on the support frame and being able to slide along the support frame; A supporting oil cylinder is installed on the supporting frame, the top end of the supporting oil cylinder is fixedly connected to the top shoe, and the bottom end of the supporting oil cylinder is fixedly connected to the bottom shoe.

2. A longitudinally supported hill climbing assist device according to claim 1, characterized in that: The auxiliary device further includes a shaft, and the connecting frame is movably mounted on the supporting frame via the shaft.

3. The longitudinal support type climbing assist device according to claim 2, characterized in that: The auxiliary device further includes a baffle, which is mounted on one end of the shaft body. The baffle and the support frame are respectively located on both sides of the connecting frame, and the minimum width of the baffle is greater than the width of the long hole.

4. The longitudinal support type hill climbing assist device according to claim 1, characterized in that: The top shoe is provided with a supporting surface, and the supporting surface is an upwardly convex arc surface.

5. The longitudinal support type hill climbing assist device according to claim 1, characterized in that: The bottom shoe is provided with an abutting surface, and the abutting surface is a downwardly convex arc surface.

6. The longitudinal support type hill climbing assist device according to claim 1, characterized in that: The support frame is a square steel structure, and the top shoe is provided with a first connecting portion connected to the supporting oil cylinder, and the outer diameter of the first connecting portion is greater than the inner diameter of the support frame.

7. The longitudinal support type hill climbing assist device according to claim 1, characterized in that: The support frame is a square steel structure, and the bottom shoe is provided with a second connecting portion connected to the supporting oil cylinder, and the outer diameter of the second connecting portion is greater than the inner diameter of the support frame.

8. The longitudinal support type hill climbing assist device according to claim 1, characterized in that: The hinge point between the front telescopic oil cylinder and the support frame is located above the long hole, and the hinge point between the rear telescopic oil cylinder and the support frame is located above the long hole.

9. A tunnel boring machine, characterized in that: The roadheader includes a longitudinally supported grade climbing assist device according to any one of claims 1 to 8.

10. The tunnel boring machine according to claim 9, characterized in that: The tunnel boring machine includes a tunnel boring body and two longitudinally supported climbing auxiliary devices; the two longitudinally supported climbing auxiliary devices are fixedly installed on the left and right sides of the tunnel boring body respectively.

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