Roadheader chassis side support stabilizing device and roadheading equipment

Abstract

The application discloses a tunneling machine chassis side support stabilizing device and a tunneling device, and relates to the field of engineering machinery, which comprises a chassis support and two lateral support mechanisms. The two lateral support mechanisms are arranged on the two sides in the width direction of the chassis support respectively; each lateral support mechanism comprises a first telescopic device, a second telescopic device and a support plate, the telescopic part of the first telescopic device and the telescopic part of the second telescopic device are rotatably connected with the support plate, one of the fixed part of the first telescopic device and the fixed part of the second telescopic device is fixedly connected with the chassis support, and the other is rotatably connected with the chassis support. The support stability is high, the tunneling machine is stable and reliable during operation, and the tunneling operation efficiency and safety are high.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery, specifically to a side support stabilization device for a tunneling machine chassis and tunneling equipment. Background Technology

[0002] Currently, tunneling machines are one of the main pieces of equipment in mining machinery. They are machines used to excavate horizontal or angled tunnels, and mainly consist of a traveling mechanism, a working mechanism, a loading mechanism, a transfer mechanism, and a support mechanism. As the traveling mechanism advances, the cutting head in the working mechanism continuously breaks up coal and rock, and removes the broken rock. The support mechanism is a crucial component of the tunneling machine; its main function is to work in conjunction with the shovel section to support the entire machine body, preventing it from swaying during operation, thus achieving precise cutting of coal and rock. It also houses the electrical control box and pump station motors. Tunneling machines are relatively large, and during operation, they generate significant vibrations, which can cause the support mechanism to loosen from the ground. This is especially problematic during the excavation of angled tunnels, where poor support can affect the overall stability of the tunneling machine during operation. Utility Model Content

[0003] The purpose of this utility model includes, for example, providing a side support stabilization device for a tunneling machine chassis and a tunneling equipment, which can improve the support effect, ensure the stability and reliability of the tunneling equipment during operation, and improve work efficiency and safety.

[0004] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a side bracing stabilization device for a tunneling machine chassis, comprising: The chassis support and two lateral support mechanisms are respectively disposed on both sides of the chassis support in the width direction. Each lateral support mechanism includes a first telescopic member, a second telescopic member, and a support plate. The telescopic parts of the first telescopic member and the second telescopic member are rotatably connected to the support plate. One of the fixed parts of the first telescopic member and the second telescopic member is fixedly connected to the chassis support, and the other is rotatably connected to the chassis support.

[0005] In an optional embodiment, the distance between the telescopic portion of the first telescopic device and the telescopic portion of the second telescopic device is less than the distance between the fixed portion of the first telescopic device and the fixed portion of the second telescopic device.

[0006] In an optional embodiment, the fixing part of the first expansion joint is fixedly connected to the chassis support, the fixing part of the second expansion joint is rotatably connected to the chassis support, and the first expansion joint is located on the front side of the second expansion joint in the tunneling direction of the tunneling machine.

[0007] In an optional embodiment, the telescopic direction of the first telescopic member is the same as the width direction of the chassis support.

[0008] In an optional embodiment, the fixing part of the first telescopic device is inserted and fixed to the chassis bracket.

[0009] In an optional embodiment, the telescopic direction of at least one of the first telescopic member and the second telescopic member is set at an acute angle to the width direction of the chassis support.

[0010] In an optional embodiment, the support plate has a first plate surface and a second plate surface opposite to each other. The first plate surface is provided with a first ear plate and a second ear plate. The telescopic part of the first telescopic device is rotatably connected to the first ear plate, and the telescopic part of the second telescopic device is rotatably connected to the second ear plate. The second plate is used to contact the tunnel wall.

[0011] In an optional embodiment, the support plate is provided with bent portions on both sides of the tunneling machine traveling direction, and the bent portions are bent toward the side where the first expansion joint and the second expansion joint are located.

[0012] In an optional embodiment, at least one of the first telescopic member and the second telescopic member is configured as a hydraulic cylinder.

[0013] Secondly, this utility model provides a tunneling device, the tunneling device comprising: The tunneling machine chassis side support stabilization device as described in any of the foregoing embodiments.

[0014] The beneficial effects of this utility model embodiment include, for example: In summary, the roadheader chassis side support stabilization device provided in this embodiment allows the lateral support mechanisms arranged on both sides of the chassis support to deploy when the roadheader is operating in the tunnel. This involves activating the first and second expansion joints. The first and second expansion joints work together to bring the support plate closer to the tunnel wall. Furthermore, the different extension lengths of the first and second expansion joints allow the support plate to tilt, ensuring close contact between the outer surface of the support plate and the inclined tunnel wall. This results in a large contact area between the support plate and the tunnel wall, providing excellent support and ensuring stable and reliable support. Thus, the combination of the first and second expansion joints and the support plate not only adapts to support operations on tunnel walls of different widths but also to tunnel walls with different inclination angles, offering flexibility, strong environmental adaptability, and stable and reliable support.

[0015] Meanwhile, the two lateral support mechanisms are independently controlled, allowing for flexible control. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the tunneling machine chassis side brace stabilization device in this embodiment; Figure 2 This is a schematic diagram of the lateral support mechanism in this embodiment.

[0018] icon: 100-Chassis bracket; 200-Main frame; 300-Side support mechanism; 310-First telescopic device; 311-First fixing part; 312-First telescopic part; 313-First rotating shaft; 314-First clamping plate; 315-Plug-in protrusion; 320-Second telescopic device; 321-Second fixing part; 322-Second telescopic part; 323-Second rotating shaft; 324-Second clamping plate; 330-Support plate; 331-First plate surface; 332-Second plate surface; 333-First ear plate; 334-Second ear plate; 335-Bending part. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] In the prior art, in order to improve the stability of the tunneling machine during operation, a support structure is set on the width side of the tunneling machine. The support structure includes an expansion joint and a support seat. The expansion joint generally extends and retracts along the width direction of the tunneling machine, and the support seat is generally perpendicular to the extension and retraction direction of the expansion joint. As a result, the support seat can only move horizontally along the width direction of the tunneling machine, resulting in a small contact area with the inclined roadway wall and poor support effect.

[0026] In view of this, the designers have provided a side bracing stabilization device for the tunneling machine chassis, which can adapt to tunnels of different widths and inclination angles, is flexible in operation, has good support effect, and high stability.

[0027] Please refer to Figures 1-2 This embodiment provides a side-support stabilization device for a tunneling machine chassis, which includes a chassis support 100 and two lateral support mechanisms 300. The two lateral support mechanisms 300 are respectively disposed on both sides of the chassis support 100 in the width direction; each lateral support mechanism 300 includes a first telescopic member 310, a second telescopic member 320, and a support plate 330. The telescopic parts of the first telescopic member 310 and the second telescopic member 320 are rotatably connected to the support plate 330. One of the fixed parts of the first telescopic member 310 and the second telescopic member 320 is fixedly connected to the chassis support 100, and the other is rotatably connected to the chassis support 100.

[0028] As described above, the working principle of the tunneling machine chassis side support stabilization device provided in this embodiment is as follows: In the initial state, the lateral support mechanisms 300 located on both sides of the chassis support 100 are in a retracted state, with short lengths, close to the width side of the chassis support 100, which does not easily increase the width of the chassis support 100 and can improve the passage of the chassis support 100. When it is necessary to position the tunneling equipment, the lateral support mechanisms 300 on both sides of the chassis support 100 are controlled respectively, that is, the first expansion joint 310 and the second expansion joint 320 are activated. The first expansion joint 310 and the second expansion joint 320 work together to move the support plate 330 closer to the tunnel wall. Furthermore, by using the different extension lengths of the first expansion joint 310 and the second expansion joint 320, the support plate 330 can be tilted, so that the outer surface of the support plate 330 can make close contact with the inclined tunnel wall. The support plate 330 has a large contact area with the tunnel wall, resulting in good support effect and stable and reliable support. In this way, by cooperating with the first expansion joint 310, the second expansion joint 320 and the support plate 330, it can not only adapt to the support operation of roadway walls of different widths, but also adapt to roadway walls of different inclination angles. It is flexible in use, has strong environmental adaptability, and provides stable and reliable support.

[0029] The following embodiments illustrate the details of the tunneling machine chassis side bracing stabilization device of this application by way of example.

[0030] Please refer to Figures 1-2 In this embodiment, optionally, the tunneling machine chassis side support stabilization device includes a chassis support 100, a main frame 200, and two lateral support mechanisms 300. The main frame 200 is installed at the front end of the chassis support 100, and the two lateral support mechanisms 300 are respectively installed on both sides of the chassis support 100 in the width direction. During tunneling, the two lateral support mechanisms 300 can contact the tunnel wall, utilizing the tunnel wall for support, thereby stabilizing the entire machine and ensuring the safety and reliability of tunneling.

[0031] In this embodiment, optionally, the chassis bracket 100 is a known existing structure. No improvements have been made to its structure and principle in this embodiment, and to avoid repetition and redundancy, it will not be described in detail here. To facilitate the installation of the first telescopic device 310 and the second telescopic device 320, a insertion slot (not shown) and a mounting side plate (not shown) are provided on the width side of the chassis bracket 100.

[0032] In this embodiment, optionally, the main frame 200 is a known existing structure. No improvements have been made to its structure and principle in this embodiment, and to avoid repetition, it will not be described in detail here. The main frame 200 is mainly used to install and position the tunneling cutter head, enabling tunnel excavation operations using the cutter head.

[0033] In this embodiment, optionally, the structures of the two lateral support mechanisms 300 can be set to be identical. This reduces manufacturing costs, ensures high interchangeability, and lowers maintenance costs. Furthermore, to avoid repetition and redundancy, this embodiment uses the detailed structure of one side of the lateral support mechanism 300 as an example.

[0034] Please refer to Figure 2 Optionally, the lateral support mechanism 300 includes a first expansion joint 310, a second expansion joint 320, and a support plate 330. The support plate 330 is mounted on the chassis bracket 100 through the cooperation of the first expansion joint 310 and the second expansion joint 320. The cooperation of the first expansion joint 310 and the second expansion joint 320 can adjust the distance between the support plate 330 and the roadway wall, and also adjust the angle of the support plate 330 relative to the roadway wall, thereby maximizing the contact area between the support plate 330 and the roadway wall, and improving the support effect.

[0035] The first telescopic device 310 includes a first fixed part 311, a first telescopic part 312, a first rotating shaft 313, and a first locking plate 314. The first telescopic part 312 is slidably connected to the first fixed part 311. The first rotating shaft 313 is mounted on the first telescopic part 312, and the first locking plate 314 is engaged with the first rotating shaft 313. The end of the first fixed part 311 away from the first telescopic part 312 is provided with a plugging protrusion 315.

[0036] It should be understood that the first expansion joint 310 can be configured as a hydraulic cylinder or the like, which can be connected to the hydraulic system of the tunneling equipment to provide the power required for expansion and contraction.

[0037] Optionally, the second telescopic device 320 includes a second fixed part 321, a second telescopic part 322, a second rotating shaft 323, and a second locking plate 324. The second telescopic part 322 is slidably connected to the second fixed part 321. The second rotating shaft 323 is mounted on the second telescopic part 322, and the second locking plate 324 is engaged with the second rotating shaft 323.

[0038] It should be understood that the second expansion joint 320 can be configured as a hydraulic cylinder or the like, which can be connected to the hydraulic system of the tunneling equipment to provide the power required for expansion and contraction.

[0039] Optionally, the support plate 330 has a first plate surface 331 and a second plate surface 332 in its thickness direction. The first plate surface 331 is provided with a first ear plate 333 and a second ear plate 334. The first plate surface 331 can also be referred to as the inner plate surface, and the second plate surface 332 can also be referred to as the outer plate surface. The second plate surface 332 is used to contact the roadway wall. Simultaneously, the support plate 330 has bent portions 335 on both opposite sides in a preset direction. The bent portions 335 bend from the second plate surface 332 towards the first plate surface 331, that is, the bent portions 335 bend from the outside to the inside. When the support plate 330 is installed on the chassis support 100, the preset direction is consistent with the travel direction of the tunneling machine.

[0040] It should be understood that since the support plate 330 is set as a bent plate, a reinforcing rib structure is formed at the bend, which can not only improve the structural strength of the support plate 330 and reduce the probability of deformation of the support plate 330, but also reduce the probability of the support plate 330 colliding with the roadway wall when it is in the contracted position that fits against the width side of the chassis support 100, thereby improving the passability of the tunneling machine.

[0041] It should be noted that the assembly structure of the first expansion joint 310, the second expansion joint 320, and the support plate 330 is as follows: The first rotating shaft 313 passes through the first ear plate 333, and two first retaining plates 314 are engaged with the outside of the first rotating shaft 313 to prevent the first rotating shaft 313 from disengaging from the first ear plate 333. Similarly, the second rotating shaft 323 passes through the second ear plate 334, and two second retaining plates 324 are engaged with the outside of the second rotating shaft 323 to prevent the second rotating shaft 323 from disengaging from the second ear plate 334. The first rotating shaft 313 and the second rotating shaft 323 are arranged in parallel and spaced apart.

[0042] Furthermore, the insertion protrusion 315 on the first fixing part 311 is inserted into the insertion slot of the chassis bracket 100, and the two are fixedly engaged. The second fixing part 321 can be rotatably connected to the mounting side plate via a rotating shaft, thus completing the engagement between the first telescopic device 310 or the second telescopic device 320 and the chassis bracket 100. The rotation axis of the second fixing part 321 and the mounting side plate is parallel to the first rotating shaft 313.

[0043] It is worth noting that the first expansion joint 310 is fixedly connected to the chassis support 100, while the second expansion joint 320 is rotatably connected to the chassis support 100. Furthermore, the first expansion joint 310 is located in front of the second expansion joint 320 in the tunneling direction of the tunneling machine; that is, the second expansion joint 320 obliquely abuts against the support plate 330 from behind. In this way, the vibration force of the chassis support 100 can be transmitted to the support plate 330 through the first expansion joint 310 and the second expansion joint 320, and then transmitted to the tunnel wall through the support plate 330, utilizing the tunnel wall for stable support. Additionally, some of the vibration force can be transmitted along the length of the second expansion joint 320, reducing shear force and preventing deformation and damage.

[0044] Furthermore, the extension direction of the first expansion joint 310 can be consistent with the width direction of the chassis support 100, that is, the extension direction of the first expansion joint 310 is perpendicular to the travel direction of the tunneling machine. Meanwhile, the extension direction of the second expansion joint 320 has an acute angle with the travel direction. Moreover, the distance between the first expansion joint 312 and the second expansion joint 322 is smaller than the distance between the first fixing part 311 and the second fixing part 321. This results in a larger span between the first fixing part 311 and the second fixing part 321, providing more stable support.

[0045] Obviously, in other embodiments, both the first expansion joint 310 and the second expansion joint 320 can be set at an acute angle to the tunneling direction. This reduces the space requirements of the first expansion joint 310 and the second expansion joint 320 in the width direction of the chassis support 100, making installation easier.

[0046] The tunneling machine chassis side support stabilization device provided in this embodiment, through the cooperation of the first expansion joint 310, the second expansion joint 320 and the support plate 330, enables the outer side of the support plate 330 to be tightly attached to the roadway wall, with a large contact area and good support effect, making the tunneling machine stable and reliable during operation.

[0047] This embodiment also provides a tunneling device, including the tunneling machine chassis side support stabilization device mentioned in the above embodiments, which has at least the advantage of high stability during operation.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A side-bracing stabilization device for a tunneling machine chassis, characterized in that, include: The chassis support (100) and two lateral support mechanisms (300) are respectively disposed on both sides of the chassis support (100) in the width direction; each lateral support mechanism (300) includes a first telescopic member (310), a second telescopic member (320) and a support plate (330), the telescopic part of the first telescopic member (310) and the telescopic part of the second telescopic member (320) are rotatably connected to the support plate (330), one of the fixed part of the first telescopic member (310) and the fixed part of the second telescopic member (320) is fixedly connected to the chassis support (100), and the other of the two is rotatably connected to the chassis support (100).

2. The tunneling machine chassis side support stabilization device according to claim 1, characterized in that: The distance between the telescopic part of the first telescopic member (310) and the telescopic part of the second telescopic member (320) is less than the distance between the fixed part of the first telescopic member (310) and the fixed part of the second telescopic member (320).

3. The tunneling machine chassis side support stabilization device according to claim 2, characterized in that: The fixing part of the first expansion joint (310) is fixedly connected to the chassis support (100), and the fixing part of the second expansion joint (320) is rotatably connected to the chassis support (100). The first expansion joint (310) is located on the front side of the second expansion joint (320) in the tunneling direction of the tunneling machine.

4. The tunneling machine chassis side support stabilization device according to claim 3, characterized in that: The telescopic direction of the first telescopic device (310) is the same as the width direction of the chassis support (100).

5. The tunneling machine chassis side support stabilization device according to claim 3, characterized in that: The fixing part of the first telescopic device (310) is inserted and fixed to the chassis bracket (100).

6. The tunneling machine chassis side support stabilization device according to claim 1, characterized in that: The telescopic direction of at least one of the first telescopic member (310) and the second telescopic member (320) is set at an acute angle to the width direction of the chassis support (100).

7. The tunneling machine chassis side support stabilization device according to any one of claims 1-6, characterized in that: The support plate (330) has a first plate surface (331) and a second plate surface (332) opposite to each other. The first plate surface (331) is provided with a first ear plate (333) and a second ear plate (334). The telescopic part of the first telescopic device (310) is rotatably connected to the first ear plate (333), and the telescopic part of the second telescopic device (320) is rotatably connected to the second ear plate (334). The second plate (332) is used to contact the tunnel wall.

8. The tunneling machine chassis side support stabilization device according to any one of claims 1-6, characterized in that: The support plate (330) is provided with bending portions (335) on both sides of the tunneling machine traveling direction, and the bending portions (335) bend toward the side where the first expansion joint (310) and the second expansion joint (320) are located.

9. The tunneling machine chassis side support stabilization device according to any one of claims 1-6, characterized in that: At least one of the first telescopic member (310) and the second telescopic member (320) is configured as a hydraulic cylinder.

10. A tunneling device, characterized in that, The tunneling equipment includes: The tunneling machine chassis side support stabilization device according to any one of claims 1-9.

Images