Crushing device and tunnel boring machine

Abstract

The utility model provides a crushing device and a tunnel boring machine, and relates to the technical field of tunnel boring, the crushing device comprises a case, the inner wall of the case is rotatably connected with a movable cutter assembly, two ends of the inner side of the case are respectively and symmetrically provided with crushing protection frames, the inner walls of the crushing protection frames are provided with a plurality of fixed cutter assemblies, and the outer sides of the plurality of fixed cutter assemblies are provided with driving frames; a telescopic part connected with the driving frame is further arranged on the outer side of the machine box in a penetrating mode, a telescopic air cylinder is started to drive the connecting frame to be horizontally pushed towards one side, the two supporting rods and the multiple brake blocks located between the two supporting rods are pushed to synchronously move, the brake blocks can slide in inclined grooves in the moving process, and therefore the control frame is extruded to move towards the front side; the control frame can linearly slide on the telescopic limiting block in the moving process, so that the control frame and the fixed cutter assembly on the front side are guided, the distance between the fixed cutter assembly and the movable cutter assembly is changed, the distance can be finely adjusted according to rocks with different hardness, and the good crushing effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring technology, and in particular to a crushing device and a tunnel boring machine. Background Technology

[0002] Tunnel boring machines are mainly used to excavate tunnels underground. They can excavate tunnels of various shapes for use in transportation, energy supply, and urban infrastructure construction. Crushers are an important component of tunnel boring machines, used for crushing, grinding, and screening large materials.

[0003] The existing announcement number CN219482915U discloses a crushing device and a tunnel boring machine. In use, the rotating shaft rotates relative to the housing assembly under the drive of the drive mechanism. The moving cutter assembly set on the rotating shaft rotates together with the rotating shaft. The rotating moving cutter assembly and the fixed cutter assembly located on the housing assembly form a cutting and crushing zone for the slag. The slag in this zone is cut and crushed simultaneously by the moving cutter assembly and the fixed cutter assembly, so that the slag is crushed more thoroughly and evenly, which facilitates the transportation of slag and improves the operating efficiency of the tunnel boring machine.

[0004] However, the fixed spacing design of the fixed blade assembly mentioned above is difficult to cope with complex geological conditions. For example, when soft rock and hard rock are alternately distributed, the fixed crushing parameters cannot take into account both extreme conditions, which limits the versatility and adaptability of the equipment. When processing rocks with high hardness, the fixed spacing may cause the blade to bear excessive impact load, accelerating the wear of the blade. When processing soft rock, the excessive spacing will cause the blade to spin freely, increasing unnecessary wear.

[0005] Therefore, it is necessary to provide a new crushing device and tunnel boring machine to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a crushing device and a tunnel boring machine.

[0007] The crushing device provided in the first aspect of this application adopts the following technical solution:

[0008] The device includes a chassis, with a moving blade assembly rotatably connected to the inner wall of the chassis. Crushing and protective frames are symmetrically arranged at both ends of the inner side of the chassis. Multiple fixed blade assemblies are arranged on the inner wall of the crushing and protective frames. A drive frame is arranged on the outer side of the multiple fixed blade assemblies. A telescopic component connected to the drive frame is also provided through the outer side of the chassis.

[0009] Furthermore, the crushing protection frame is provided with a telescopic slide groove and horizontal slide grooves located at the upper and lower ends of the telescopic slide groove, and multiple telescopic limit blocks are fixedly connected to the inner wall of the telescopic slide groove of the crushing protection frame.

[0010] Furthermore, a control frame is fixedly connected to one side of the fixed blade assembly. The control frame has an oblique groove and a straight groove, and the telescopic limit block can slide on the side wall of the straight groove.

[0011] Furthermore, the drive frame includes two vertically parallel support rods, which are slidably connected to the horizontal slide groove of the crushing protection frame. Multiple brake blocks are fixedly connected between the two support rods, and the brake blocks can slide along the inner wall of the inclined groove of the control frame.

[0012] Furthermore, the telescopic component includes a telescopic cylinder, which is fixedly connected to the outer wall of the chassis. A connecting frame is fixedly connected to the output end of the telescopic cylinder, and the end of the connecting frame away from the telescopic cylinder is fixedly connected to two support rods.

[0013] The tunnel boring machine provided in the second aspect of this application adopts the following technical solution:

[0014] Includes any one of the crushing devices in the first aspect and a tunneling machine, wherein the tunneling machine is fixedly connected to the cutting tool assembly via a coupling.

[0015] Compared with related technologies, the crushing device and tunnel boring machine provided by this utility model have the following beneficial effects:

[0016] The crushing device and tunnel boring machine drive the connecting frame to move horizontally to one side by activating the telescopic cylinder. This pushes the two support rods and multiple brake blocks located between them to move synchronously. During the movement, the brake blocks slide in the inclined groove, thereby squeezing the control frame to move forward. During the movement of the control frame, it slides linearly on the telescopic limit block, thereby guiding the control frame and the fixed cutter assembly on the front side. This changes the distance between the fixed cutter assembly and the moving cutter assembly, allowing the distance to be finely adjusted according to the rock of different hardness to achieve better crushing effect. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the crushing device and tunnel boring machine provided by this utility model;

[0018] Figure 2 Schematic cross-sectional view of the crushing device and tunnel boring machine provided by this utility model Figure 1 ;

[0019] Figure 3 A schematic diagram of the structure of the telescopic component provided by this utility model;

[0020] Figure 4 Schematic cross-sectional view of the crushing device and tunnel boring machine provided by this utility model Figure 2 .

[0021] The following are the labels in the diagram: 1. Chassis; 2. Moving cutter assembly; 3. Crushing protection frame; 4. Telescopic limit block; 5. Fixed cutter assembly; 6. Control frame; 7. Support rod; 8. Brake block; 9. Inclined groove; 10. Straight groove; 11. Telescopic cylinder; 12. Connecting frame; 13. Coupling; 14. Tunneling machine. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to the following: Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , Figure 1 A schematic diagram of the overall structure of the crushing device and tunnel boring machine provided by this utility model; Figure 2 Schematic cross-sectional view of the crushing device and tunnel boring machine provided by this utility model Figure 1 ; Figure 3 A schematic diagram of the structure of the telescopic component provided by this utility model; Figure 4 Schematic cross-sectional view of the crushing device and tunnel boring machine provided by this utility model Figure 2 .

[0024] In the specific implementation process, such as Figures 1 to 4 As shown, the crushing device provided in the first aspect of this application adopts the following technical solution, including a housing 1, a moving blade assembly 2 rotatably connected to the inner wall of the housing 1, a crushing protection frame 3 symmetrically arranged at both ends of the inner side of the housing 1, a plurality of fixed blade assemblies 5 arranged on the inner wall of the crushing protection frame 3, a drive frame arranged on the outer side of the plurality of fixed blade assemblies 5, and a telescopic member connected to the drive frame also penetrating through the outer side of the housing 1.

[0025] It should be noted that a cutting and crushing zone for slag and stone is formed between the moving blade assembly 2 and the fixed blade assembly 5. The slag and stone in this zone are cut and crushed simultaneously by the moving blade assembly 2 and the fixed blade assembly 5.

[0026] The crushing protection frame 3 has a telescopic slide groove and horizontal slide grooves at the upper and lower ends of the telescopic slide groove. Multiple telescopic limit blocks 4 are fixedly connected to the inner wall of the telescopic slide groove of the crushing protection frame 3. A control frame 6 is fixedly connected to one side of the fixed blade assembly 5. The control frame 6 has an inclined groove 9 and a straight groove 10. The telescopic limit blocks 4 can slide along the side wall of the straight groove 10. The drive frame includes two vertically parallel support rods 7. The two support rods 7 are slidably connected in the horizontal slide groove of the crushing protection frame 3. Multiple brake blocks 8 are fixedly connected between the two support rods 7. The brake blocks 8 can slide along the inner wall of the inclined groove 9 of the control frame 6. The telescopic component includes a telescopic cylinder 11. The telescopic cylinder 11 is fixedly connected to the outer wall of the machine box 1. A connecting frame 12 is fixedly connected to the output end of the telescopic cylinder 11. The end of the connecting frame 12 away from the telescopic cylinder 11 is fixedly connected to the two support rods 7.

[0027] It should be noted that there is a certain gap between the inner wall of the chassis 1 and the support rod 7, and the size of this gap is larger than the adjustment size of the fixed tool assembly 5.

[0028] Specifically, by activating the telescopic cylinder 11, the connecting frame 12 is driven to move horizontally to one side, pushing the two support rods 7 and the multiple brake blocks 8 located between them to move synchronously. During the movement, the brake blocks 8 will slide in the inclined groove 9, thereby squeezing the control frame 6 to move forward. During the movement of the control frame 6, it will slide linearly on the telescopic limit block 4, thereby guiding the control frame 6 and the fixed blade assembly 5 on the front side, changing the distance between the fixed blade assembly 5 and the moving blade assembly 2. The distance can be finely adjusted according to the rock of different hardness to achieve a better crushing effect.

[0029] In the specific implementation process, such as Figure 1 As shown, the tunnel boring machine 14 provided in the second aspect of this application adopts the following technical solution:

[0030] Includes any one of the crushing devices in the first aspect and a tunneling machine 14, the tunneling machine 14 being fixedly connected to the cutting tool assembly 2 via a coupling 13.

[0031] The working principle provided by this utility model is as follows: In specific implementation, the tunnel boring machine 14 drives the moving cutter assembly 2 to rotate on the inner wall of the machine box 1 through the coupling 13. The rotating moving cutter assembly 2 and the fixed cutter assembly 5 located on the inner wall of the machine box 1 form a cutting and crushing area for the slag. The slag in this area is cut and crushed simultaneously by the moving cutter assembly 2 and the fixed cutter assembly 5, and the slag is crushed more thoroughly and evenly, which facilitates the transportation of slag and improves the working efficiency of the tunnel boring machine 14.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A crushing device, comprising a machine box, a moving blade assembly (2) is rotatably connected to the inner wall of the machine box (1), and a crushing guard frame (3) is symmetrically arranged at both ends of the inner side of the machine box (1), a plurality of fixed blade assemblies (5) are arranged on the inner wall of the crushing guard frame (3), characterized in that, The outer side of the plurality of cutter assemblies (5) is provided with a driving frame, and the outer side of the cabinet (1) is also provided with a telescopic part connected with the driving frame.

2. The crushing device of claim 1, wherein The crushing protection frame (3) is provided with a telescopic sliding groove and horizontal sliding grooves at the upper and lower ends of the telescopic sliding groove, and a plurality of telescopic limiting blocks (4) are fixedly connected to the inner wall of the telescopic sliding groove of the crushing protection frame (3).

3. The crushing device of claim 2, wherein One side of the cutter assembly (5) is fixedly connected with a control frame (6), the control frame (6) is provided with an inclined groove (9) and a straight groove (10), and the telescopic limiting block (4) can slide on the side wall of the straight groove (10).

4. The crushing device of claim 3, wherein The driving frame comprises two support rods (7) arranged vertically and in parallel, a plurality of brake blocks (8) are fixedly connected between the two support rods (7), and the brake blocks (8) can slide on the inner wall of the inclined groove (9) of the control frame (6).

5. The crushing device of claim 4, wherein The telescopic part comprises a telescopic air cylinder (11), the telescopic air cylinder (11) is fixedly connected to the outer side wall of the cabinet (1), the output end of the telescopic air cylinder (11) is fixedly connected with a connecting frame (12), and the end of the connecting frame (12) away from the telescopic air cylinder (11) is fixedly connected with the two support rods (7).

6. A tunnel boring machine (14) characterized by, The crushing device comprises the crushing device according to any one of claims 1 to 5 and a heading machine (14), and the heading machine (14) is fixedly connected with the cutter assembly (2) through a shaft coupling (13).

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