Supporting cover structure of heading machine

Abstract

The utility model provides a supporting cover structure of a heading machine. The supporting cover structure comprises an upper cover plate, a first side plate and a bottom plate, the number of the first side plates is two, the two first side plates are symmetrically arranged on the two sides of the upper cover plate, and the ends, away from the upper cover plate, of the first side plates are connected with the bottom plate. The first side plate and the upper cover plate are welded to form a bent part, and the first side plate and the bottom plate are welded. According to the supporting cover structure of the heading machine, the first side plates are arranged on the two sides of the upper cover plate, the upper ends of the first side plates are welded to the upper cover plate, the lower ends of the first side plates are welded to the bottom plate, the portions, welded to the upper cover plate, of the first side plates form the bent portions, and the bent portions are jointly formed by the first side plates and the upper cover plate. Due to the split structure, the bending part formed by the split structure can transfer partial pressure to the first side plate when the upper cover plate is pressed, and due to the fact that the structural strength of the welding and bending part is better, the bending part is not prone to deforming and cracking into fragments to hurt people, and the structural strength and the use safety of the supporting cover structure of the heading machine are improved.

Description

Technical Field

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

[0002] A tunnel boring machine is a tunneling equipment used for excavating, supporting and removing mucking from tunnels. It includes a traveling mechanism, a working mechanism, a loading mechanism and a transferring mechanism. The working mechanism is used to crush rocks, and the traveling mechanism is used to move and propel the tunnel boring machine.

[0003] In the prior art, the traveling mechanism of the tunnel boring machine includes a support cover structure, which acts between the track frame and the track, and is used to support the track, wherein the support cover structure includes an upper cover plate, which is often arranged as an integral bending structure, and its bending thickness is usually set to be less than 20 mm, and the bending radius is large. However, since the upper cover plate is mostly made of wear-resistant plate, its toughness is worse than that of ordinary steel plate. Therefore, when the temperature is too low in winter, the toughness of the upper cover plate is reduced, and the upper cover plate is prone to breakage during the bending process, which can easily cause the broken fragments of the upper cover plate to splash and injure people.

[0004] Therefore, the structure of the supporting cover in the prior art has room for further improvement. Utility Model Content

[0005] In view of this, in order to solve the technical problem that the upper cover plate in the above-mentioned prior art is formed by one-piece bending, and its bent portion is easy to break and injure people in a low temperature environment, the present application provides a support cover structure, which adopts a split structure, including an upper cover plate and a first side plate, the bent portion of which is formed between the first side plate and the upper cover plate, and the upper cover plate and the first side plate are welded. The bent portion of the support cover structure is made by welding, thereby increasing the structural strength of the bent portion. The first side plate can share the pressure of the bent portion, increase the durability of the bent portion, and make the bent portion not easy to break into fragments and injure people.

[0006] The present application provides a roadheader support cover structure, comprising an upper cover plate, a first side plate and a bottom plate;

[0007] There are two first side panels, which are symmetrically arranged on both sides of the upper cover plate, and one end of the first side panel away from the upper cover plate is connected to the bottom plate;

[0008] Wherein, the first side plate and the upper cover plate are welded to form a bent portion, and the first side plate and the bottom plate are welded.

[0009] The present application provides a tunnel boring machine support cover structure, which is provided with an upper cover plate, a first side plate and a bottom plate, wherein the first side plate is arranged on both sides of the upper cover plate, the upper end of the first side plate is welded to the upper cover plate, and the lower end of the first side plate is welded to the bottom plate, wherein a bending portion is formed at a position where the first side plate is welded to the upper cover plate, and the bending portion is formed by the first side plate and the upper cover plate. Compared with the one-piece molding in the prior art, the bending portion formed by the split structure can transfer pressure to the first side plate due to the split structure when the upper cover plate is under pressure, and due to welding, the structural strength of the bending portion is better, and it is less likely to deform and break into fragments to injure people, thereby increasing the structural strength and use safety of the tunnel boring machine support cover structure.

[0010] Preferably, the first side plate is tilted, and the clamp between the first side plate and the upper cover plate is an obtuse angle;

[0011] The outer surface of the bending portion is a smooth curved surface.

[0012] Preferably, it further comprises a second side plate, which is symmetrically arranged at the side end of the upper cover plate;

[0013] Wherein, the second side panel is located at a side end of the first side panel, and an inner side wall of the second side panel is opposite to a side wall of the first side panel.

[0014] Preferably, the lower end of the second side plate is welded to the bottom plate, the inner side wall of the upper end of the second side plate is at least partially in contact with the upper cover plate, and the upper cover plate is welded to the second side plate;

[0015] The second side plate and the bottom plate are made of ordinary carbon steel.

[0016] Preferably, it further comprises a guide plate, wherein the guide plate is arranged at one end of the upper cover plate away from the bottom plate;

[0017] Wherein, the center line of the guide plate is parallel to the center line of the upper cover plate.

[0018] Preferably, the length of the guide plate is smaller than the length of the upper cover plate, and the width of the guide plate is smaller than the width of the upper cover plate;

[0019] The guide plate is made of wear-resistant plate material.

[0020] Preferably, the guide plate is provided with a buffer opening, and the buffer opening passes through the upper and lower sides of the guide plate;

[0021] The width of the buffer opening is smaller than the width of the guide plate, and the length of the buffer opening is smaller than the length of the guide plate.

[0022] Preferably, the width of the upper end of the guide plate is greater than the width of the lower end of the guide plate, and the side wall of the guide plate is an inclined surface;

[0023] Wherein, the side ends of the guide plate are in a retracted shape.

[0024] Preferably, the distance between the two first side panels and the connecting ends of the bottom panel is smaller than the length of the bottom panel;

[0025] The upper cover plate and the first side plate are made of wear-resistant plate material.

[0026] Preferably, the base plate is provided with a mounting hole, the mounting hole is used for a connecting piece to pass through, and the base plate is connected to the crawler frame body through the connecting piece.

[0027] A tunnel boring machine support cover structure of the present application has at least the following technical effects:

[0028] 1. By welding the first side plate to the upper cover plate, a bending portion is formed at the welding point of the two, so that the bending portion is a split structure, the structural strength of the bending portion is enhanced, and the probability of the bending portion breaking into fragments is reduced, thereby improving the structural strength, service life and use safety of the tunnel boring machine support cover structure;

[0029] 2. By setting the first side plate as an inclined plate, the width between the connection ends of the two first side plates and the upper cover plate is smaller than the width between the connection ends of the two first side plates and the bottom plate, so that the first side plate and the upper cover plate form a structure that is narrow at the top and wide at the bottom, so that the first side plate has better support for the upper cover plate, thereby improving the stability and structural strength of the support cover structure of the tunnel boring machine;

[0030] 3. A buffer opening is provided on the guide plate, and the buffer opening is opened on the upper and lower end surfaces of the guide plate, so that a part of the guide plate is hollowed out. On the one hand, it can reduce the material used to make the guide plate, and on the other hand, it can provide a deformation buffer space for the guide plate when it is affected by temperature. When the guide plate expands due to the influence of temperature, it can expand and bulge toward the buffer opening, thereby reducing the probability of outward expansion and bulging, and reducing the impact on the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the side view of the supporting cover structure of the tunnel boring machine provided by one embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of a top view of a support cover structure of a tunnel boring machine provided in one embodiment of the present application;

[0033] Figure 3 It is a schematic cross-sectional structure diagram of a support cover structure and crawler installation of a tunnel boring machine provided by an embodiment of the present application;

[0034] Figure 4 This is a structural schematic diagram of the installation of a support cover structure and a crawler frame of a tunnel boring machine provided in an embodiment of the present application;

[0035] Figure 5 It is a cross-sectional structural diagram of the installation of a support cover structure and a crawler frame of a tunnel boring machine provided by an embodiment of the present application;

[0036] Figure 6 yes Figure 3 A magnified schematic diagram of local A.

[0037] Reference numerals: 1, tunnel boring machine support cover structure; 2, crawler; 3, crawler frame;

[0038] 11. Upper cover plate; 12. First side plate; 13. Second side plate; 14. Bottom plate; 15. Guide plate; 16. Bending portion; 17. Card plate;

[0039] 141. mounting hole; 142. connecting piece;

[0040] 151. Buffer port. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail, clearly and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0042] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0043] Those skilled in the art should understand that, in the disclosure of the present application, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present application.

[0044] The present application is further described in detail below in conjunction with the accompanying drawings. Figures 1 to 6 illustrate.

[0045] The present application provides a tunnel boring machine support cover structure 1, such as Figure 4 , Figure 5As shown, it acts on the walking mechanism of the tunnel boring machine, is located between the crawler frame 3 and the crawler 2, and is used to support the crawler 2; specifically, the tunnel boring machine support structure includes an upper cover plate 11, a bottom plate 14 and a first side plate 12, and the upper cover plate 11, the first side plate 12 and the bottom plate 14 are basically a plate-shaped structure as a whole, the upper end of the first side plate 12 is connected to the upper cover plate 11, and the lower end of the first side plate 12 is connected to the bottom plate 14, that is, the first side plate 12 acts between the upper cover plate 11 and the bottom plate 14 to achieve The cover plate 11 is indirectly connected to the bottom plate 14, wherein the center lines of the upper cover plate 11 and the bottom plate 14 are parallel and on the same plane, wherein the upper cover plate 11 is used to support the crawler 2, and the bottom plate 14 is used to connect with the crawler frame 3; in the present application, the first side plate 12 is welded to the upper cover plate 11 and the bottom plate 14 respectively, wherein the first side plate 12 is connected to the upper cover plate 11 to form a bending portion 16, and the angle of the bending portion 16 is an obtuse angle, that is, the angle between one side plate and the upper cover plate 11 is an obtuse angle, wherein, as Figure 1 As shown, the outer surface of the bending portion 16 is a smooth curved surface, so that the connection between the upper cover plate 11 and the first side plate 12 is smoother and more natural. On the one hand, it can avoid the jamming of the crawler 2 at the weld, and on the other hand, it can avoid sharp parts and reduce stress concentration; at the same time, since the bending portion 16 is composed of the upper cover plate 11 and the first side plate 12, and the upper cover plate 11 and the first side plate 12 are welded, the welding point can strengthen the structural strength of the bending portion 16; the bending portion 16 is a split structure, when the upper cover plate 11 is under pressure, the first side plate 12 can share the pressure to a large extent, and at the same time, it can reduce the probability of the bending portion 16 breaking into fragments, thereby improving the structural strength, service life and safety of use of the tunnel boring machine support cover structure 1.

[0046] In this embodiment, if Figure 1 As shown, there are two first side plates 12, and the two first side plates 12 are symmetrically arranged at both ends of the upper cover plate 11 along the center line of the upper cover plate 11; the first side plates 12 are inclined, and the distance between the two first side plates 12 and the upper cover plate 11 at the connection is L1, and the distance between the two first side plates 12 and the bottom plate 14 at the connection is L2, L2>L1, so that the first side plates 12 are inclined inward from bottom to top, so that a structure with a narrow top and a wide bottom is formed between the first side plates 12, the bottom plate 14 and the upper cover plate 11, and the upper end of the upper cover plate 11 is the contact surface with the crawler 2, therefore, the width of the lower ends of the two first side plates 12 is greater than the width of the upper ends, so that the first side plates 12 have a better pressure-bearing effect on the upper cover plate 11, and the supporting stability and service life of the tunnel boring machine support cover structure 1 are better.

[0047] Further, such as Figure 1As shown, the length of the bottom plate 14 is L3, where L2 < L3, that is, the distance between the bottoms of the two first side plates 12 is less than the length of the bottom plate 14, so that the bottom plate 14 has enough space to support the first side plates 12 and improve the support stability; at the same time, a space is reserved for connecting the bottom plate 14 to the crawler frame 3, such as Figure 3 、 Figure 5 As shown, the bottom plate 14 is provided with mounting holes 141, and the mounting holes 141 penetrate through the upper and lower end faces of the bottom plate 14. The mounting holes 141 are used for the connecting member 142 to pass through. Among them, the crawler frame 3 is provided with mating holes that cooperate with the mounting holes 141, so that after the connecting member 142 passes through the mounting holes 141, it can be inserted into the mating holes, thereby realizing the connection between the crawler frame 3 and the bottom plate 14; in this embodiment, the connecting member 142 is a bolt or a screw.

[0048] Furthermore, as Figure 5 shown, the roadheader support cover structure 1 further includes a clamping plate 17. The clamping plate 17 is a "7"-shaped structure. The clamping plate 17 includes a connecting portion and a limiting portion. The limiting portion is connected to the upper end of the connecting portion, and the side end of the limiting portion protrudes outward. The limiting portion and the connecting portion are plate-shaped structures. The bottom of the connecting portion is connected to the crawler frame 3, and a clamping groove is formed between the limiting portion and the crawler frame 3 and the connecting portion. Among them, the thickness of the bottom plate 14 is less than or equal to the height of the connecting portion, that is, the thickness of the bottom plate 14 is less than or equal to the depth of the clamping groove. The bottom plate 14 is located in the clamping groove, and the bottom surface of the limiting portion is opposite to the upper end surface of the bottom plate 14, so that the clamping plate 17 plays a limiting role on the bottom plate 14. The clamping plate 17 cooperates with the connecting member 142 to strengthen the connection firmness between the bottom plate 14 and the crawler frame 3; at the same time, there is no need to set holes and connecting members 142 between the clamping plate 17 and the bottom plate 14, which can reduce the processing process of the bottom plate 14, increase the structural strength of the bottom plate 14, and is more conducive to the connection firmness between the roadheader support cover structure 1 and the crawler frame 3.

[0049] It should be noted that in this application, the first side plates 12 and the upper cover plate 11 are made of wear-resistant plate materials, so as to improve the wear resistance of the first side plates 12 and the upper cover plate 11 and increase the service life of the roadheader support cover structure 1.

[0050] In another alternative embodiment of this application, the roadheader support cover structure 1 is further expanded; as Figure 2 、 Figure 3 、 Figure 5As shown, the tunnel boring machine support cover structure 1 also includes a second side plate 13, the second side plate 13 is a plate-like structure, and the second side plates 13 are provided in two, and the two second side plates 13 are symmetrically arranged on both sides of the upper cover plate 11, and the inner side wall of the second side plate 13 is opposite to the outer side wall of the first side plate 12, that is, the connection side of the second side plate 13 and the upper cover plate 11 is not the connection side of the first side plate 12 and the upper cover plate 11; at the same time, the second side plate 13 is welded to at least part of the side end of the first side plate 12, the upper end of the first side plate 12 is at least partially welded to the upper cover plate 11, and the lower end of the second side plate 13 is welded to the bottom plate 14, and the angle between the second side plate 13 and the upper cover plate 11 is 90 degrees, that is, the second side plate 13 is arranged in the vertical direction; as shown Figure 3 As shown, the upper end surface of the second side plate 13 is lower than the upper end surface of the upper cover plate 11, thereby preventing the R angle formed at the connection between the second side plate 13 and the upper cover plate 11 from interfering with the track 2, thereby ensuring the smooth sliding of the track 2.

[0051] In this embodiment, the second side plate 13 cooperates with the first side plate 12 to support the four ends of the upper cover plate 11 respectively, thereby improving the stability of the upper cover plate 11. In addition, under the joint action of the first side plate 12 and the second side plate 13, a hollow structure is formed between the upper cover plate 11 and the bottom plate 14, which can effectively save materials. The second side plate 13 and the bottom plate 14 are both made of ordinary carbon steel, which can effectively control costs and save costs.

[0052] In another optional embodiment of the present application, the tunnel boring machine support cover structure 1 is further expanded; Figures 1 to 3 , Figure 6 As shown, the tunnel boring machine support cover structure 1 also includes a guide plate 15, which is arranged on the end surface of the upper cover plate 11 away from the bottom plate 14, that is, the guide plate 15 is arranged on the upper end of the upper cover plate 11, and the bottom of the guide plate 15 is connected to the upper end surface of the upper cover plate 11; Figure 2 As shown, the length extension direction of the guide plate 15 is the same as the length extension direction of the upper cover plate 11, and the center line of the guide plate 15 is parallel to the center line of the upper cover plate 11 and is on the same plane. Figure 3 As shown, the length of the guide plate 15 is less than the length of the upper cover plate 11, the width of the guide plate 15 is less than the width of the upper cover plate 11, the guide plate 15 is symmetrical along the center line, the guide plate 15 is located on the center line of the upper cover plate 11, and the guide plate 15 guides the track 2. At the same time, the guide plate 15 limits the track 2, which can prevent the track 2 from deviating left and right when sliding on the tunnel boring machine support structure, thereby ensuring the sliding stability of the track 2 on the tunnel boring machine support cover structure 1; in this embodiment, the guide plate 15 is made of wear-resistant plate material, which can increase the wear resistance of the guide plate 15, thereby improving the service life of the guide plate 15.

[0053] Further, such as Figure 2As shown, the guide plate 15 is provided with a buffer opening 151, and at least one buffer opening 151 is provided. The buffer opening 151 is opened on the upper end surface and the lower end surface of the guide plate 15, that is, the buffer opening 151 passes through the upper and lower side surfaces of the guide plate 15, and the width of the buffer opening 151 is less than the width of the guide plate 15, and the length of the buffer opening 151 is less than the length of the guide plate 15, so as to ensure the structural strength of the guide plate 15; and the buffer opening 151 makes the guide plate 15 partially hollowed out, which can reduce the material used to make the guide plate 15 on the one hand, and provide a deformation buffer space for the guide plate 15 when it is affected by temperature on the other hand, so that when the guide plate 15 is affected by temperature and expands, it can expand and bulge toward the buffer opening 151, reducing the probability of outward expansion and bulging, avoiding the outward expansion and bulging of the guide plate 15 interfering with the crawler 2, thereby reducing the influence of the guide plate 15 on the crawler 2 when it is affected by temperature. In this embodiment, there are two buffer openings 151, and the two buffer openings 151 are arranged at intervals along the center line direction.

[0054] Further, such as Figure 6 As shown, the width of the upper end of the guide plate 15 is greater than the width of the lower end of the guide plate 15, and the side wall of the guide plate 15 is an inclined surface, so that the cross-section of the guide plate 15 approaches an inverted cone structure, and the guide plate 15 is set to a structure that is wide at the top and narrow at the bottom, which can be suitable for the structure of the track 2, increasing the contact area between the guide plate 15 and the track 2 while reducing the manufacturing material of the guide plate 15. At the same time, debris such as dust and impurities can be pushed into the clamping groove between the guide plate 15 and the upper cover plate 11 to avoid affecting the track 2.

[0055] Among them, Figure 6 As shown, the side ends of the guide plate 15 are in a retracted shape, and the outer surfaces of the side ends of the guide plate 15 are curved to a smooth arc surface, or the angle between the outer surfaces of the side plates of the guide plate 15 is an obtuse angle, so as to reduce the sharpness between the surfaces, thereby reducing the formation of sharp points and avoiding the interference of the sharp points with the track 2, thereby ensuring the smooth sliding of the track 2.

[0056] It should be noted that the various embodiments of the present application can be arbitrarily combined into a new embodiment if the solutions do not conflict and the technical solutions can coexist.

[0057] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A tunnel boring machine support cover structure, characterized in that: It comprises an upper cover plate (11), a first side plate (12) and a bottom plate (14); There are two first side panels (12), and the two first side panels (12) are symmetrically arranged on both sides of the upper cover plate (11), and one end of the first side panel (12) away from the upper cover plate (11) is connected to the bottom plate (14); The first side plate (12) and the upper cover plate (11) are welded to form a bent portion (16), and the first side plate (12) and the bottom plate (14) are welded.

2. The tunnel boring machine support cover structure according to claim 1, characterized in that: The first side plate (12) is arranged obliquely, and the clamp between the first side plate (12) and the upper cover plate (11) is an obtuse angle; The outer surface of the bending portion (16) is a smooth curved surface.

3. The tunnel boring machine support cover structure according to claim 1, characterized in that: It also includes a second side plate (13), which is symmetrically arranged on the side end of the upper cover plate (11); Wherein, the second side plate (13) is located at the side end of the first side plate (12), and the inner side wall of the second side plate (13) is opposite to the side wall of the first side plate (12).

4. The tunnel boring machine support cover structure according to claim 3, characterized in that: The lower end of the second side plate (13) is welded to the bottom plate (14), the inner side wall of the upper end of the second side plate (13) is at least partially in contact with the upper cover plate (11), and the upper cover plate (11) is welded to the second side plate (13); The second side plate (13) and the bottom plate (14) are made of ordinary carbon steel.

5. The tunnel boring machine support cover structure according to any one of claims 1 to 4, characterized in that: It also includes a guide plate (15), wherein the guide plate (15) is arranged at one end of the upper cover plate (11) away from the bottom plate (14); Wherein, the center line of the guide plate (15) is parallel to the center line of the upper cover plate (11).

6. The tunnel boring machine support cover structure according to claim 5, characterized in that: The length of the guide plate (15) is smaller than the length of the upper cover plate (11), and the width of the guide plate (15) is smaller than the width of the upper cover plate (11); The guide plate (15) is made of wear-resistant plate material.

7. The tunnel boring machine support cover structure according to claim 5, characterized in that: The guide plate (15) is provided with a buffer opening (151), and the buffer opening (151) passes through the upper and lower side surfaces of the guide plate (15); The width of the buffer opening (151) is smaller than the width of the guide plate (15), and the length of the buffer opening (151) is smaller than the length of the guide plate (15).

8. The tunnel boring machine support cover structure according to claim 5, characterized in that: The width of the upper end of the guide plate (15) is greater than the width of the lower end of the guide plate (15), and the side wall of the guide plate (15) is an inclined surface; Wherein, the side ends of the guide plate (15) are in a retracted shape.

9. The tunnel boring machine support cover structure according to claim 1, characterized in that: The distance between the connection ends of the two first side plates (12) and the bottom plate (14) is smaller than the length of the bottom plate (14); The upper cover plate (11) and the first side plate (12) are made of wear-resistant plate material.

10. The tunnel boring machine support cover structure according to claim 1, characterized in that: The bottom plate (14) is provided with a mounting hole (141), and the mounting hole (141) is used for a connecting piece (142) to pass through, and the bottom plate (14) is connected to the crawler frame (3) via the connecting piece (142).

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