A shovel structure and a tunneling machine including the same

Abstract

The utility model belongs to the technical field of tunneling equipment, specifically provides a kind of shovel plate structure and the tunneling machine comprising it, including shovel plate body, first star wheel subassembly, second star wheel subassembly, first extension door plate and second extension door plate;First star wheel subassembly and second star wheel subassembly are mutually spaced and set in the center part of shovel plate body Two sides, for the muck generated in the tunneling process of tunneling machine is gathered;Second extension door plate and first extension door plate are relatively symmetrical along the center part of shovel plate body Setting, and second extension door plate and first extension door plate are respectively in second star wheel subassembly or first star wheel subassembly side away from along the center part of shovel plate body, for muck is gathered to first star wheel subassembly and second star wheel subassembly place.In the material gathering process of shovel plate structure, shovel plate structure is in the state of sticking to ground;But in the whole machine advancing process, shovel plate structure needs to be lifted;And if through moving machine to and fro gather material and discharge residue, shovel plate needs to be lifted frequently, operation is very inconvenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunneling equipment, and relates to a shovel structure and a tunneling machine containing the same. Background Technology

[0002] Currently, cantilever tunneling machines are widely used in coal mine roadways and tunnel excavation, characterized by their small size and flexible excavation capabilities. The cantilever tunneling machine's shovel and scraper conveyor form its material transport channel.

[0003] 1) During the tunneling process, cantilever roadheaders, while freely excavating, also face the problem of muck removal. In order to smoothly transfer the material cut by the cutting drum through the shovel, the machine needs to be moved left and right to collect all the cut material into the shovel. The material is then gathered into the scraper conveyor by the rotation of the star wheel to complete the muck removal. The left and right movement of the machine for muck removal is relatively convenient in large-sized tunnels, but if the excavated tunnel is small, the left and right movement of the machine is inconvenient. The equipment is prone to scraping the tunnel, damaging the floor, crushing cables, and even causing injury to on-site construction personnel. This also poses a challenge to the on-site equipment operators.

[0004] 2) During the material gathering process, the star wheel will rub against the shovel plate. The surfaces of the shovel plate and the star wheel that come into contact with each other are prone to wear, and correspondingly, the contact surface of the star wheel is also prone to wear. Reducing the wear of these contact surfaces is crucial for extending the service life of the equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a shovel structure with adjustable material gathering width and a tunneling machine containing the shovel, with wear-resistant plates added to the easily worn parts of the shovel for protection.

[0006] This utility model provides a shovel structure, including a shovel body and a first star wheel assembly, a second star wheel assembly, a first extension door panel and a second extension door panel disposed on the shovel body;

[0007] The first star wheel assembly and the second star wheel assembly are spaced apart on both sides of the center of the shovel plate body, and are used to collect the excavated soil generated by the tunneling machine during the tunneling process;

[0008] The second extension door panel and the first extension door panel are symmetrically arranged along the center of the shovel plate body, and the second extension door panel and the first extension door panel are respectively on the side of the second star wheel assembly or the first star wheel assembly away from the center of the shovel plate body, for gathering the slag and soil to the first star wheel assembly and the second star wheel assembly.

[0009] Furthermore, a slag chute and a tongue plate disposed within the slag chute are provided between the second extension door panel and the first extension door panel. The tongue plate and the slag chute cooperate to form a channel for transporting slag.

[0010] Furthermore, a composite wear-resistant plate can be detachably installed on the shovel plate body, and the composite wear-resistant plate is fixed to the shovel plate body by bolts.

[0011] Furthermore, the first and second extended door panels have the same structure, both including a door panel body and a first pin and a telescopic cylinder disposed on the door panel body.

[0012] One end of the main body of the door panel is hinged to the shovel plate body via a first pin.

[0013] One end of the telescopic cylinder is hinged to the shovel plate body, and the other end of the telescopic cylinder is hinged to the end of the door panel body away from the first pin shaft, which is used to drive the door panel body to rotate relative to the shovel plate body to achieve the movement of expansion or contraction.

[0014] Furthermore, the shovel plate body is also provided with two sets of guide components for guiding the second extension door panel and the first extension door panel respectively;

[0015] The single guide assembly includes a guide rail plate and a limiting chain. The guide rail plate is installed on the shovel plate body and is used to limit and guide the displacement direction of the second expansion door panel. One end of the limiting chain is fixed to the shovel plate body, and the other end of the limiting chain is fixed to the second expansion door panel or the first expansion door panel, and is used to limit the range of the second expansion door panel or the first expansion door panel during the expansion process.

[0016] Furthermore, the second star wheel assembly and the first star wheel assembly have the same structure, both including a driving component and a star wheel. The driving component is fixedly installed on the shovel plate body, and the star wheel is fixedly installed on the driving end of the driving component. Under the drive of the driving component, the star wheel collects the slag generated by the tunneling machine during the tunneling process.

[0017] Furthermore, wear-resistant protective sleeves are bolted to the tips of the star wheels.

[0018] As a further embodiment of this utility model, this utility model also provides a tunneling machine, including a lifting cylinder, a tunneling machine chassis, and a shovel structure as described above.

[0019] One end of the lifting cylinder is hinged to the shovel plate structure via a second pin, and the other end of the lifting cylinder is hinged to the tunneling machine chassis via a second pin.

[0020] The shovel structure can move up and down by being pulled by a lifting cylinder.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] During the material gathering process, the shovel structure is in a ground-hugging state; however, during the machine's forward movement, the shovel structure needs to be lifted. If material is gathered and discharged by moving the machine back and forth, the shovel needs to be lifted frequently, which is inconvenient. Therefore, this invention addresses this issue by designing the shovel as an expandable structure. By unfolding the shovel structure and bringing it close to the tunnel, material across the entire tunnel width is directly collected into the shovel structure as the tunneling machine moves forward, thus achieving rapid muck discharge.

[0023] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of a shovel plate structure in Embodiment 1 of this utility model;

[0026] Figure 2 yes Figure 1 A schematic diagram of the first perspective view of the second extended door panel;

[0027] Figure 3 yes Figure 1 A partial schematic diagram showing the interconnection of the second extension door panel and the shovel plate.

[0028] Figure 4 yes Figure 1 A schematic diagram of the second perspective view of the second extension door panel;

[0029] Figure 5 yes Figure 1 Explosion diagram of composite wear-resistant steel plate;

[0030] Figure 6 yes Figure 1 Installation diagram of the wear-resistant plate protective sleeve at the tip of the Zhongxing wheel;

[0031] Figure 7 This is a schematic diagram of a tunneling machine according to Embodiment 2 of this utility model;

[0032] Figure 8 This is a schematic diagram of the position of a tunneling machine in a roadway in Embodiment 2 of this utility model.

[0033] in:

[0034] 1. Shovel structure; 1.1 Shovel body; 1.2 First star wheel assembly; 1.2.1 Wear-resistant protective sleeve; 1.3 Second star wheel assembly; 1.4 Slag chute; 1.5 Tongue plate; 1.6 Composite wear-resistant plate; 1.7 First extension door panel; 1.8 Second extension door panel; 1.8.1 Door panel body; 1.8.2 First pin shaft; 1.8.3 Telescopic cylinder; 1.8.4 Guide rail plate; 1.8.5 Limiting chain;

[0035] 2. Lifting cylinder; 3. Second pin; 4. Tunneling machine chassis. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this utility model clearer and easier to understand, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings of this utility model are all in a simplified form and use non-precise proportions, and are only used to facilitate and clearly assist in illustrating the implementation of this utility model; the "several" mentioned in this utility model are not limited to the specific number shown in the examples in the drawings; the directions or positional relationships indicated by "front," "middle," "rear," "left," "right," "up," "down," "top," "bottom," and "middle" mentioned in this utility model are all based on the directions or positional relationships shown in the accompanying drawings of this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, nor should they be construed as limitations on this utility model.

[0037] Example 1:

[0038] See Figures 1 to 6 As shown, this utility model provides a shovel structure for use on a tunneling machine, including a shovel body 1.1 and a first star wheel assembly 1.2, a second star wheel assembly 1.3, a composite wear-resistant plate 1.6, a first extension door plate 1.7, and a second extension door plate 1.8 disposed on the shovel body 1.1;

[0039] The first star wheel assembly 1.2 and the second star wheel assembly 1.3 are arranged at intervals on both sides of the center part of the shovel plate body 1, and are used to collect the slag and soil generated by the tunneling machine during the tunneling process;

[0040] The second extension door panel 1.8 and the first extension door panel 1.7 are symmetrically arranged along the center of the shovel body 1.1, and the second extension door panel 1.8 and the first extension door panel 1.7 are respectively located on the side away from the center of the shovel body 1.1 of the second star wheel assembly 1.3 or the first star wheel assembly 1.2, for gathering the slag and soil to the first star wheel assembly 1.2 and the second star wheel assembly 1.3.

[0041] Preferably, a slag chute 1.4 and a tongue plate 1.5 disposed in the slag chute 1.4 are provided between the second extension door panel 1.8 and the first extension door panel 1.7. The tongue plate 1.5 and the slag chute 1.4 cooperate with each other to form a material conveying channel.

[0042] Preferably, in order to achieve wear-resistant protection for the shovel plate body 1.1, a composite wear-resistant plate 1.6 can also be detachably installed on the shovel plate body 1.1. The composite wear-resistant plate 1.6 is fixed to the shovel plate body 1.1 by bolts so as to facilitate quick replacement when the composite wear-resistant plate 1.6 is worn.

[0043] Preferably, the second extended door panel 1.8 includes a door panel body 1.8.1 and a first pin 1.8.2 and a telescopic cylinder 1.8.3 disposed on the door panel body 1.8.1; one end of the door panel body 1.8.1 is hinged to the shovel plate body 1.1 through the first pin 1.8.2; one end of the telescopic cylinder 1.8.3 is hinged to the shovel plate body 1.1, and the other end of the telescopic cylinder 1.8.3 is hinged to the end of the door panel body 1.8.1 away from the first pin 1.8.2, for driving the door panel body 1.8.1 to rotate relative to the shovel plate body 1.1 to realize the movement of expansion or retraction.

[0044] Preferably, in order to guide the second extension door panel 1.8 and the first extension door panel 1.7 during the expansion and retraction process, the shovel body 1.1 is also provided with two sets of guide components for guiding the second extension door panel 1.8 and the first extension door panel 1.7 respectively;

[0045] The single guide assembly includes a guide rail plate 1.8.4 and a limiting chain 1.8.5. The guide rail plate 1.8.4 is mounted on the shovel plate body 1.1 and is used to limit and guide the displacement direction of the second extension door plate 1.8. One end of the limiting chain 1.8.5 is fixed to the shovel plate body 1.1, and the other end of the limiting chain 1.8.5 is fixed to the second extension door plate 1.8 or the first extension door plate 1.7. It is used to limit the range of the second extension door plate 1.8 or the first extension door plate 1.7 during the expansion process. At the same time, when the second extension door plate 1.8 or the first extension door plate 1.7 is subjected to the backward impact force of the material during the material gathering process of the shovel plate structure 1, the limiting chain 1.8.5 can play a buffering role to protect the telescopic cylinder 1.8.3 and the entire second extension door plate 1.8 or the first extension door plate 1.7.

[0046] Preferably, the second star wheel assembly 1.3 and the first star wheel assembly 1.2 have the same structure, both including a driving component and a star wheel. The driving component is fixedly installed on the shovel plate body 1.1, and the star wheel is fixedly installed on the driving end of the driving component. The star wheel collects the slag generated by the tunneling machine during the tunneling process under the drive of the driving component.

[0047] Further preferably, in order to perform wear-resistant treatment on the tips of the star wheels in the second star wheel assembly 1.3 and the first star wheel assembly 1.2, a wear-resistant protective sleeve 1.2.1 is installed on the tips of the star wheels by bolts.

[0048] Example 2:

[0049] See Figure 7 and Figure 8 As shown, this utility model also provides a tunneling machine, including a shovel lifting cylinder 2, a tunneling machine chassis 4, and a shovel structure 1 as described above;

[0050] One end of the lifting cylinder 2 is hinged to the shovel structure 1 via the second pin 3, and the other end of the lifting cylinder 3 is hinged to the tunneling machine chassis 4 via the second pin 3.

[0051] The shovel structure 1 can move up and down by being pulled by the lifting cylinder 2.

[0052] Preferably, apart from the structure described above, the remaining structures and connection methods of the tunneling machine refer to existing technologies.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A blade structure, characterized by It includes a shovel body (1.1) and a first star wheel assembly (1.2), a second star wheel assembly (1.3), a first extension door panel (1.7), and a second extension door panel (1.8) disposed on the shovel body (1.1). The first star wheel assembly (1.2) and the second star wheel assembly (1.3) are spaced apart on both sides of the center of the shovel plate body (1.1) to collect the slag and soil generated by the tunneling machine during the tunneling process; The second extension door panel (1.8) and the first extension door panel (1.7) are symmetrically arranged along the center of the shovel body (1.1), and the second extension door panel (1.8) and the first extension door panel (1.7) are respectively located on the side away from the center of the shovel body (1.1) of the second star wheel assembly (1.3) or the first star wheel assembly (1.2), for gathering the slag and soil to the first star wheel assembly (1.2) and the second star wheel assembly (1.3); The shovel body (1.1) is also provided with two sets of guide components for guiding the second extension door panel (1.8) and the first extension door panel (1.7) respectively; The single guide assembly includes a guide rail plate (1.8.4) and a limiting chain (1.8.5). The guide rail plate (1.8.4) is installed on the shovel plate body (1.1) and is used to limit and guide the displacement direction of the second expansion door plate (1.8). One end of the limiting chain (1.8.5) is fixed to the shovel plate body (1.1), and the other end of the limiting chain (1.8.5) is fixed to the second expansion door plate (1.8) or the first expansion door plate (1.7) and is used to limit the range of the second expansion door plate (1.8) or the first expansion door plate (1.7) during the expansion process.

2. The blade structure of claim 1, wherein A slag chute (1.4) and a tongue plate (1.5) are provided between the second extension door panel (1.8) and the first extension door panel (1.7). The tongue plate (1.5) and the slag chute (1.4) cooperate with each other to form a channel for transporting slag.

3. The shovel plate structure according to claim 2, characterized in that, A composite wear-resistant plate (1.6) can also be detachably installed on the shovel body (1.1), and the composite wear-resistant plate (1.6) is fixed to the shovel body (1.1) by bolts.

4. The shovel plate structure according to any one of claims 1-3, characterized in that, The first extended door panel (1.7) and the second extended door panel (1.8) have the same structure, both including a door panel body (1.8.1) and a first pin (1.8.2) and a telescopic cylinder (1.8.3) disposed on the door panel body (1.8.1). One end of the door panel body (1.8.1) is hinged to the shovel plate body (1.1) via a first pin (1.8.2); One end of the telescopic cylinder (1.8.3) is hinged to the shovel plate body (1.1), and the other end of the telescopic cylinder (1.8.3) is hinged to the end of the door panel body (1.8.1) away from the first pin (1.8.2), which is used to drive the door panel body (1.8.1) to rotate relative to the shovel plate body (1.1) to realize the movement of expansion or contraction.

5. The shovel plate structure according to claim 4, characterized in that, The second star wheel assembly (1.3) and the first star wheel assembly (1.2) have the same structure. They both include a driving component and a star wheel. The driving component is fixedly installed on the shovel plate body (1.1), and the star wheel is fixedly installed on the driving end of the driving component. The star wheel collects the slag generated by the tunneling machine during the tunneling process under the drive of the driving component.

6. The shovel plate structure according to claim 5, characterized in that, Wear-resistant protective sleeves are bolted to the tips of the star wheels (1.2.1).

7. A tunneling machine, characterized in that, Includes a lifting cylinder (2), a tunneling machine chassis (4), and a shovel structure as described in claim 5 or 6; One end of the lifting cylinder (2) is hinged to the shovel plate structure via the second pin (3), and the other end of the lifting cylinder (2) is hinged to the tunneling machine chassis (4) via the second pin (3); The shovel structure can move up and down by being pulled by the lifting cylinder (2).

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