Cutterhead structure with adjustable aperture ratio of tube push bench

Abstract

The utility model discloses a tube push bench aperture ratio adjustable cutter head structure, which comprises a cutter head main body and an aperture ratio adjusting assembly, a plurality of cutter mounting parts are arranged on the cutter head main body, and a cutter head opening is formed between two adjacent cutter mounting parts; the opening ratio adjusting assembly is detachably connected to the side, away from the working face, of the cutterhead body, and the opening ratio adjusting assembly is movably arranged at the cutterhead opening. The opening size of the cutter head opening is adjusted through the opening ratio adjusting assembly, so that the opening ratio of the cutter head can be effectively adjusted, and tunneling work in different rock stratum environments is met.

Description

Technical Field

[0001] The utility model relates to the technical field of the opening rate adjustment of a pipe jacking machine, in particular to a cutter head structure with an adjustable opening rate for a pipe jacking machine. Background Art

[0002] A pipe jacking machine is a large-scale excavation device, which is often used in various tunnel construction projects. The main function of excavation in the pipe jacking machine is performed by the cutter head of the pipe jacking machine. Since the pipe jacking machine excavates underground and the geological conditions underground are relatively complex, a cutter head that can work stably is required. The cutter head is divided into two categories according to its functions. One is a cutter head specifically for excavating a single soft soil layer or hard soil layer, and the other is a composite cutter head specifically for excavating a composite bottom layer with both soft soil and hard rock. Therefore, the cutter head is usually equipped with an earth inlet and a soil bin for transporting the soil generated during the excavation process. However, if the opening of the earth inlet is too small, it will be difficult to discharge the soft soil, forming a "mud cake", which will affect the normal tunneling work of the cutter head. If the opening of the earth inlet is too large, large pieces of rock slag will enter the cutter chamber, resulting in blockage of the conveying pipeline. Therefore, there is an urgent need for a cutter head structure that can adjust the opening rate of the cutter head. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cutter head structure with an adjustable opening rate for a pipe jacking machine. Through the opening rate adjustment component, the opening size of the cutter head opening can be effectively adjusted, so as to meet the tunneling work under different rock stratum environments.

[0004] The utility model is realized through the following technical solutions:

[0005] A cutter head structure with an adjustable opening rate for a pipe jacking machine includes a cutter head main body and an opening rate adjustment component. A plurality of cutter installation parts are arranged on the cutter head main body, and a cutter head opening is formed between adjacent two cutter installation parts. The opening rate adjustment component is detachably connected to the side of the cutter head main body away from the working surface, and the opening rate adjustment component is movably arranged at the cutter head opening. In order to solve the above technical problems and achieve the corresponding technical effects, the utility model adjusts the opening size of the cutter head opening through the opening rate adjustment component, so as to effectively adjust the opening rate of the cutter head and meet the tunneling work under different rock stratum environments.

[0006] Further technical solution:

[0007] The opening rate adjustment component includes a rotating part and a shielding part. The rotating part is connected to the cutter head main body, the shielding part is connected to the rotating part, the shielding part rotates at the cutter head opening, and the shielding part is used to shield the cutter head opening.

[0008] Furthermore, slag discharge openings are formed on the shielding part, and multiple slag discharge openings are arranged on the shielding part evenly and at equal intervals.

[0009] Furthermore, the shielding member includes a plurality of shielding plates, and each shielding plate is correspondingly used to shield one of the cutter head openings.

[0010] Furthermore, the rotating member is arranged at the center of the cutter head body, and the plurality of shielding plates are evenly arranged at equal angular intervals on the rotating member;

[0011] Furthermore, the angular interval between two of the shielding plates is not greater than the angle of the tool mounting portion.

[0012] Furthermore, the rotating member includes a connecting disc and a driving motor. The driving motor is fixed at the center of the cutter head body, and the connecting disc is connected to the output end of the driving motor;

[0013] Furthermore, the shielding member is detachably connected to the connecting disc.

[0014] Furthermore, the shielding member is provided with upper and lower layers of shielding plates. When the upper shielding plate and the lower shielding plate completely overlap, the slag discharge opening on the upper shielding plate is shielded by the lower shielding plate, and the slag discharge opening on the lower shielding plate is shielded by the upper shielding plate.

[0015] Furthermore, the upper shielding plate is connected to one connecting disc, the lower shielding plate is connected to another connecting disc, and a clutch is arranged between the two connecting discs.

[0016] Furthermore, an arc-shaped guide rail is further arranged at the edge of the cutter head body, and the edge of the shielding plate is slidably arranged in the arc-shaped guide rail.

[0017] Furthermore, the arc-shaped guide rail is a multi-segment guide rail, and the angle corresponding to each segment of the arc-shaped guide rail is the sum of the angle corresponding to one tool mounting portion and the angle corresponding to the adjacent cutter head opening.

[0018] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0019] 1. For the adjustable cutter head structure with opening ratio of the pipe jacking machine of the present utility model, the opening size of the cutter head opening is adjusted through the opening ratio adjustment assembly, so that the opening ratio of the cutter head can be effectively adjusted, thereby meeting the tunneling work under different rock stratum environments.

[0020] 2. For the adjustable cutter head structure with opening ratio of the pipe jacking machine of the present utility model, the setting of the slag discharge opening on the shielding plate can effectively reduce the influence of the opening ratio adjustment assembly on the normal slag discharge work, and at the same time, the setting of the double-layer shielding plate in cooperation with the slag discharge opening can further enhance the opening ratio adjustment effect. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a top view of the main structure of the cutter head;

[0024] Figure 3 is a bottom view of the main structure of the cutter head;

[0025] Figure 4 is a schematic structural diagram of the aperture adjustment assembly;

[0026] Figure 5 is a schematic structural diagram of the baffle;

[0027] The reference numerals in the drawings and the corresponding component names:

[0028] 1 - cutter head body, 2 - aperture adjustment assembly, 3 - tool mounting part, 4 - cutter head opening, 5 - arc-shaped guide rail, 21 - rotating part, 22 - shielding part, 23 - slag discharge opening, 24 - clutch, 211 - connecting disc, 212 - drive motor, 221 - baffle. Detailed Embodiments

[0029] To make the objectives, technical solutions, and advantages of the present utility model more clear and understandable, the following will further elaborate on the present utility model in combination with the embodiments and the drawings. The illustrative embodiments of the present utility model and their descriptions are only used to explain the present utility model and do not serve as a limitation to the present utility model.

[0030] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present utility model. However, it is obvious to those of ordinary skill in the art that: these specific details do not have to be adopted to implement the present utility model. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present utility model.

[0031] Throughout the specification, references to "an embodiment", "embodiments", "an example" or "examples" mean that the specific features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present utility model. Thus, the phrases "an embodiment", "embodiments", "an example" or "examples" that appear throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the specific features, structures, or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. In addition, those of ordinary skill in the art should understand that the diagrams provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model.

[0033] Embodiment:

[0034] As Figures 1 to 5 shown, a cutter head structure with adjustable opening ratio of a pipe jacking machine according to the present utility model includes a cutter head body 1 and an opening ratio adjustment assembly 2. A plurality of tool mounting parts 3 are provided on the cutter head body 1, and a cutter head opening 4 is formed between two adjacent tool mounting parts 3; the opening ratio adjustment assembly 2 is detachably connected to the side of the cutter head body 1 away from the working face, and the opening ratio adjustment assembly 2 is movably arranged at the cutter head opening 4. In this embodiment, the size of the cutter head opening 4 is adjusted by the opening ratio adjustment assembly 2, and thus the size of the cutter head opening ratio can be effectively adjusted to meet the tunneling work in different rock stratum environments.

[0035] Furthermore, the opening ratio adjustment component 2 includes a rotating member 21 and a shielding member 22. The rotating member 21 is connected to the cutter head body 1, the shielding member 22 is connected to the rotating member 21, the shielding member 22 rotates at the cutter head opening 4, and the shielding member 22 is used to shield the cutter head opening 4. In this embodiment, the rotating member 21 is used to drive the shielding member 22 to move between the cutter head opening 4 and the tool mounting portion 3, thereby realizing the adjustment of the size of the cutter head opening 4, and thus realizing the adjustment of the size of the opening ratio of the disc to meet the tunneling work requirements under different rock stratum environments. Furthermore, in order to reduce the influence of the shielding member 22 on the normal slag discharge work, in this embodiment, slag discharge openings 23 are formed in the shielding member 22, and multiple slag discharge openings 23 are arranged on the shielding member 22 evenly at equal intervals. And further, in order to cooperate with the setting of the cutter head opening 4 on the cutter head body 1, the shielding member 22 includes multiple shielding plates 221, and each shielding plate 221 is correspondingly used to shield one cutter head opening 4.

[0036] Specifically, the rotating member 21 is arranged at the center of the cutter head body 1, and multiple shielding plates 221 are arranged on the rotating member 21 at equal angular intervals; the angular interval between two shielding plates 221 is not greater than the angle of the tool mounting portion 3. The rotating member 21 includes a connecting disc 211 and a driving motor 212. The driving motor 212 is fixed at the center of the cutter head body 1, and the connecting disc 211 is connected to the output end of the driving motor 212; the shielding member 22 is detachably connected to the connecting disc 211. In order to further improve the opening ratio adjustment effect, in this embodiment, the shielding member 22 is provided with upper and lower layers of shielding plates 221, and when the upper shielding plate and the lower shielding plate completely overlap, the slag discharge openings 23 on the upper shielding plate are shielded by the lower shielding plate, and the slag discharge openings 23 on the lower shielding plate are shielded by the upper shielding plate. By using the cooperation of the slag discharge openings 23 on the two layers of shielding plates 221, the cutter head opening ratio is further adjusted. Furthermore, the upper shielding plate is connected to one connecting disc 211, the lower shielding plate is connected to another connecting disc 211, and a clutch 24 is arranged between the two connecting discs 211. The clutch 24 can be used to realize the independent movement of the two layers of shielding plates 221, so that the structure of the two layers of shielding plates 221 can be effectively used to further adjust the opening ratio.

[0037] An arc-shaped guide rail 5 is further provided at the edge of the cutter head body 1, and the edge of the shielding plate 221 is slidably disposed in the arc-shaped guide rail 5. In this embodiment, the arc-shaped guide rail 5 mainly functions to guide the rotation of the shielding plate 221 and improve the structural stability. Specifically, the arc-shaped guide rail 5 is a multi-segment guide rail, and the angle corresponding to each arc-shaped guide rail 5 is the sum of the angle corresponding to one cutter installation part 3 and the angle corresponding to the adjacent cutter head opening 4. The above structure ensures that one shielding plate 221 is used for adjusting the opening rate of one cutter head opening 4.

[0038] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cutter head structure with adjustable opening ratio for a pipe jacking machine, characterized in that: The invention comprises a cutter disc body (1) and an opening ratio adjustment component (2), wherein the cutter disc body (1) is provided with a plurality of cutter mounting portions (3), and a cutter disc opening (4) is formed between two adjacent cutter mounting portions (3); the opening ratio adjustment component (2) is detachably connected to a side of the cutter disc body (1) away from a working surface, and the opening ratio adjustment component (2) is movably arranged at the cutter disc opening (4).

2. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 1, characterized in that: The opening ratio adjustment component (2) comprises a rotating member (21) and a shielding member (22); the rotating member (21) is connected to the cutter disc main body (1); the shielding member (22) is connected to the rotating member (21); the shielding member (22) rotates at the cutter disc opening (4); and the shielding member (22) is used to shield the cutter disc opening (4).

3. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 2 is characterized in that: The shielding member (22) is provided with a slag discharge opening (23), and a plurality of slag discharge openings (23) are evenly and equidistantly arranged on the shielding member (22).

4. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 3 is characterized in that: The shielding member (22) comprises a plurality of shielding plates (221), and each shielding plate (221) is used to shield a corresponding blade disc opening (4).

5. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 4 is characterized in that: The rotating member (21) is arranged at the center of the cutter disc body (1), and a plurality of shielding plates (221) are evenly and equidistantly arranged on the rotating member (21); the angular spacing between two shielding plates (221) is not greater than the angle of the cutter mounting portion (3).

6. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 3 is characterized in that: The rotating member (21) comprises a connecting disc (211) and a driving motor (212); the driving motor (212) is fixed at the center of the cutter head body (1); the connecting disc (211) is connected to an output end of the driving motor (212); and the shielding member (22) is detachably connected to the connecting disc (211).

7. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 6 is characterized in that: The shielding member (22) is provided with upper and lower shielding plates (221), and when the upper shielding plate and the lower shielding plate completely overlap, the slag discharge opening (23) on the upper shielding plate is shielded by the lower shielding plate, and the slag discharge opening (23) on the lower shielding plate is shielded by the upper shielding plate.

8. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 7, characterized in that: The upper shielding plate is connected to a connection disk (211), the lower shielding plate is connected to another connection disk (211), and a clutch (24) is provided between the two connection disks (211).

9. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 4, characterized in that: An arc-shaped guide rail (5) is also provided at the edge of the cutter disc body (1), and the edge of the shielding plate (221) is slidably disposed in the arc-shaped guide rail (5).

10. The cutter head structure with adjustable opening ratio of a pipe jacking machine according to claim 9, characterized in that: The arc-shaped guide rail (5) is a multi-section guide rail, and the angle corresponding to each section of the arc-shaped guide rail (5) is the sum of the angle corresponding to a tool mounting portion (3) and the angle corresponding to an adjacent tool disc opening (4).

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