Tunneling slag multi-gradient grading crushing pipe jacking machine

Abstract

The utility model discloses a tunneling slag multi-gradient grading crushing pipe jacking machine which comprises a multi-gradient crushing bin, a tunneling machine cutter head, a tunneling machine main body and a slag conveying mechanism, and the multi-gradient crushing bin is arranged at the top end of the tunneling machine main body structure; an opening in the top end of the multi-gradient crushing bin is communicated with a cutter head opening in the heading machine cutter head, and the slag conveying mechanism is communicated with the multi-gradient crushing bin. The particle sizes of rock blocks are reduced step by step through the multi-gradient crushing bin, so that the force borne by the device structure in the secondary crushing process is reduced, and the problem that the tube push bench structure or the secondary crushing device structure is damaged due to too large stress can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking machine structures, in particular to a pipe jacking machine for multi-gradient graded crushing of excavation slag. Background Art

[0002] Pipe jacking construction is a trenchless construction method, which is a pipeline burial construction technology with no excavation or less excavation. Pipe jacking construction is to use the jacking force generated by the jacking equipment in the working pit to overcome the friction between the pipeline and the surrounding soil, push the pipeline into the soil according to the designed slope, and transport the soil away. After one section of the pipe is pushed into the soil layer, the second section of the pipe is pushed in. The principle is to use the thrust of the main jacking cylinder and the pipeline room, relay room, etc. to push the tool pipe or tunnel boring machine from the working pit through the soil layer to the receiving pit and lift it up. The pipeline is buried between the two pits following the tool pipe or tunnel boring machine. However, the cutter head of the existing pipe jacking machine cannot completely crush the flexible plastic drain board and the hard rock, which causes the plastic drain board and hard stone to block the slurry discharge channel, causing the pipe jacking machine to stagnate. Therefore, it is necessary to perform secondary crushing on the rocks, but the existing secondary crushing devices cannot meet the requirement of gradually reducing the particle size. During the secondary crushing process, the force exerted on the device structure is too large, which may cause damage to the pipe jacking machine structure or the secondary crushing device structure. Utility Model Content

[0003] The utility model aims to provide a tunneling slag multi-gradient graded crushing pipe jacking machine, which can realize the step-by-step reduction of rock block particle size through the setting of multi-stage gradient crushing bins, thereby avoiding the problem of damage to the pipe jacking machine structure or the secondary crushing device structure.

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

[0005] A tunneling slag multi-gradient graded crushing pipe jacking machine, comprising a multi-gradient crushing bin, a tunneling machine cutterhead, a tunneling machine body and a slag conveying mechanism, wherein the multi-gradient crushing bin is arranged at the top of the tunneling machine body structure, and the top opening of the multi-gradient crushing bin is connected to the cutterhead opening on the tunneling machine cutterhead, and the slag conveying mechanism is connected to the multi-gradient crushing bin. In order to solve the above technical problems and achieve the corresponding technical effects, the utility model realizes the step-by-step reduction of the rock block particle size through the multi-gradient crushing bin, thereby reducing the force on the device structure during the secondary crushing process, and can effectively avoid the problem of damage to the pipe jacking machine structure or the secondary crushing device structure due to excessive force.

[0006] Further technical solutions:

[0007] A plurality of slag crushing parts are arranged in the multi-gradient crushing bin, and the gaps between the slag crushing parts gradually decrease from the cutter head of the tunnel boring machine toward the bottom of the multi-gradient crushing bin.

[0008] Further: a plurality of groups of slag crushing parts are arranged along the direction from the tunnel boring machine cutter head to the bottom of the multi-gradient crushing bin, and the gaps between the slag crushing parts in the same group are the same, and the gaps between the slag crushing parts between two adjacent groups are gradually smaller.

[0009] Further: the multiple groups of slag crushing parts include a first slag crushing part group, a second slag crushing part group and a third slag crushing part group, and the first slag crushing part group, the second slag crushing part group and the third slag crushing part group are sequentially arranged in the multi-gradient crushing bin;

[0010] Further: the gap between the slag crushing parts in the first slag crushing part group is larger than the gap between the slag crushing parts in the second slag crushing part group, and the gap between the slag crushing parts in the second slag crushing part group is larger than the gap between the slag crushing parts in the third slag crushing part group.

[0011] Further: a mounting bracket a is provided between the first slag crushing component group and the second slag crushing component group, a mounting bracket b is provided between the second slag crushing component group and the third slag crushing component group, one end of the first slag crushing component group is connected to the bottom of the cutter head of the tunnel boring machine, and the other end of the first slag crushing component group is connected to one side of the mounting bracket a;

[0012] Further: one end of the second slag crushing member group is connected to the other side of the mounting bracket a, and the other end of the second slag crushing member group is connected to one side of the mounting bracket b;

[0013] Further: one end of the third slag crushing component group is connected to one side of the mounting bracket b, and the other end of the third slag crushing component group is connected to the bottom of the multi-gradient crushing bin.

[0014] Furthermore: the projections of the mounting bracket a and the mounting bracket b toward the cutter head of the tunnel boring machine overlap, and the projections fall into the tool mounting portion of the cutter head of the tunnel boring machine.

[0015] Furthermore: the mounting bracket a and the mounting bracket b both include a plurality of steel strips, and one end of the steel strips is fixed to the side wall of the multi-gradient crushing bin, and the other ends of the plurality of steel strips extend toward the center of the multi-gradient crushing bin and are fixed together.

[0016] Furthermore: the multi-gradient crushing bin is a conical structure, and the diameter of the conical structure on the side close to the tunnel boring machine cutter disc is larger than the diameter of the conical structure close to the bottom of the multi-gradient crushing bin.

[0017] Furthermore: a plurality of crushing protrusions for crushing slag are also arranged on the side wall of the multi-gradient crushing bin.

[0018] Furthermore: a through hole is provided at the bottom of the multi-gradient crushing bin, and the through hole is connected to the slag conveying mechanism.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] 1. The utility model is a tunneling slag multi-gradient graded crushing pipe jacking machine, which realizes the step-by-step reduction of rock block particle size through a multi-gradient crushing chamber, thereby reducing the force on the device structure during the secondary crushing process, and can effectively avoid the problem of damage to the pipe jacking machine structure or the secondary crushing device structure due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the multi-gradient crushing chamber structure;

[0024] Figure 3 This is a schematic diagram of the structure of the first slag crushing component group;

[0025] Figure 4 The schematic diagram of the structure of the second slag crushing component group

[0026] Figure 5 This is a schematic diagram of the structure of the third slag crushing component group.

[0027] Marks and corresponding parts names in the attached drawings:

[0028] 1-multi-gradient crushing bin, 2-tunneling machine cutter disc, 3-tunneling machine body, 4-slag conveying mechanism, 5-slag crushing parts, 6-crushing protrusions, 10-first slag crushing parts group, 20-second slag crushing parts group, 30-third slag crushing parts group, 40-installing bracket a, 50-installing bracket b. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the utility model and their descriptions are only used to explain the utility model and are not intended to limit the 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 invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0031] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0033] Example:

[0034] like Figure 1 to Figure 5As shown, the utility model is a tunneling slag multi-gradient graded crushing pipe jacking machine, comprising a multi-gradient crushing bin 1, a tunneling machine cutter head 2, a tunneling machine body 3 and a slag conveying mechanism 4, wherein the multi-gradient crushing bin 1 is arranged at the top of the tunneling machine body 3 structure, and the top opening of the multi-gradient crushing bin 1 is connected with the cutter head opening on the tunneling machine cutter head 2, and the slag conveying mechanism 4 is connected with the multi-gradient crushing bin 1. In this embodiment, the multi-gradient crushing bin 1 is used to realize the step-by-step reduction of the particle size of the rock block, thereby reducing the force exerted on the device structure during the secondary crushing process, and thus effectively avoiding the problem of damage to the pipe jacking machine structure or the secondary crushing device structure due to excessive force. During use, the slag generated by the tunneling machine enters the multi-gradient crushing bin 1 from the opening on the tunneling machine cutter head 2, and then the multi-gradient crushing bin 1 is used to crush the slag step by step, gradually reducing the particle size of the slag so as to meet the emission standard and not block the slag conveying mechanism 4.

[0035] Furthermore, a plurality of slag crushing parts 5 are arranged in the multi-gradient crushing bin 1, and the gaps between the slag crushing parts 5 gradually decrease from the direction of the tunnel boring machine cutter disc 2 to the bottom of the multi-gradient crushing bin 1. In this embodiment, the multi-gradient crushing bin 1 can rotate synchronously with the tunnel boring machine cutter disc 2, and during its rotation, the slag crushing parts 5 arranged therein are used to test the secondary crushing effect on the slag. Specifically, a plurality of the slag crushing parts 5 are arranged in a plurality of groups of slag crushing parts along the direction of the tunnel boring machine cutter disc 2 to the bottom of the multi-gradient crushing bin 1, and the gaps between the slag crushing parts 5 in the same group of slag crushing parts are the same, and the gaps between the slag crushing parts 5 between two adjacent groups of slag crushing parts gradually become smaller. A plurality of slag crushing parts 5 are grouped into a plurality of slag crushing parts groups, and the specific slag crushing parts groups include a first slag crushing parts group 10, a second slag crushing parts group 20 and a third slag crushing parts group 30, and the first slag crushing parts group 10, the second slag crushing parts group 20 and the third slag crushing parts group 30 are sequentially arranged in the multi-gradient crushing bin 1; the gap between the slag crushing parts 5 in the first slag crushing parts group 10 is larger than the gap between the slag crushing parts 5 in the second slag crushing parts group 20, and the gap between the slag crushing parts 5 in the second slag crushing parts group 20 is larger than the gap between the slag crushing parts 5 in the third slag crushing parts group 30. A mounting bracket a40 is provided between the first slag crushing component group 10 and the second slag crushing component group 20, and a mounting bracket b50 is provided between the second slag crushing component group 20 and the third slag crushing component group 30. One end of the first slag crushing component group 10 is connected to the bottom of the tunnel boring machine cutter head 2, and the other end of the first slag crushing component group 10 is connected to one side of the mounting bracket a40; one end of the second slag crushing component group 20 is connected to the other side of the mounting bracket a40, and the other end of the second slag crushing component group 20 is connected to one side of the mounting bracket b50; one end of the third slag crushing component group 30 is connected to one side of the mounting bracket b50, and the other end of the third slag crushing component group 30 is connected to the bottom of the multi-gradient crushing bin 1. In order to facilitate the installation and fixation of the slag crushing component 5, the projections of the mounting bracket a and the mounting bracket b toward the tunnel boring machine cutter head 2 coincide, and the projections fall into the tool installation part of the tunnel boring machine cutter head 2. Specifically, the mounting bracket a and the mounting bracket b each include a plurality of steel bars, and one end of the steel bars is fixed to the side wall of the multi-gradient crushing bin 1, and the other ends of the plurality of steel bars extend toward the center of the multi-gradient crushing bin 1 and are fixed together.

[0036] The multi-gradient crushing bin 1 is a conical structure, and the diameter of the conical structure near the side of the tunnel boring machine cutter head 2 is larger than the diameter of the conical structure near the bottom of the multi-gradient crushing bin 1. In this embodiment, the multi-gradient crushing bin 1 with a conical structure can conveniently concentrate the slag and effectively transport it to the slag conveying mechanism 4 for external transportation. At the same time, in order to enhance the crushing effect, a number of crushing protrusions 6 for crushing slag are also provided on the side wall of the multi-gradient crushing bin 1. A through hole is provided at the bottom of the bin of the multi-gradient crushing bin 1, and the through hole is connected to the slag conveying mechanism 4.

[0037] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A tunneling slag multi-gradient graded crushing pipe jacking machine, characterized in that: The invention comprises a multi-gradient crushing bin (1), a tunnel boring machine cutter disc (2), a tunnel boring machine body (3) and a slag conveying mechanism (4), wherein the multi-gradient crushing bin (1) is arranged at the top of the tunnel boring machine body (3) structure, and the top opening of the multi-gradient crushing bin (1) is connected to the cutter disc opening on the tunnel boring machine cutter disc (2), and the slag conveying mechanism (4) is connected to the multi-gradient crushing bin (1).

2. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 1, characterized in that: A plurality of slag crushing parts (5) are arranged in the multi-gradient crushing bin (1), and the gaps between the slag crushing parts (5) gradually decrease from the tunnel boring machine cutter head (2) towards the bottom of the multi-gradient crushing bin (1).

3. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 2, characterized in that: A plurality of slag crushing parts (5) are arranged in a plurality of groups along the direction from the tunnel boring machine cutter head (2) to the bottom of the multi-gradient crushing bin (1), and the gaps between the slag crushing parts (5) in the same group of slag crushing parts are the same, and the gaps between the slag crushing parts (5) between two adjacent groups of slag crushing parts gradually decrease.

4. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 3, characterized in that: The plurality of slag crushing component groups include a first slag crushing component group (10), a second slag crushing component group (20) and a third slag crushing component group (30), wherein the first slag crushing component group (10), the second slag crushing component group (20) and the third slag crushing component group (30) are sequentially arranged in the multi-gradient crushing bin (1); The gaps between the slag crushing parts (5) in the first slag crushing part group (10) are larger than the gaps between the slag crushing parts (5) in the second slag crushing part group (20), and the gaps between the slag crushing parts (5) in the second slag crushing part group (20) are larger than the gaps between the slag crushing parts (5) in the third slag crushing part group (30).

5. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 4, characterized in that: A mounting bracket a (40) is provided between the first slag crushing component group (10) and the second slag crushing component group (20), and a mounting bracket b (50) is provided between the second slag crushing component group (20) and the third slag crushing component group (30); one end of the first slag crushing component group (10) is connected to the bottom of the tunnel boring machine cutter head (2), and the other end of the first slag crushing component group (10) is connected to one side of the mounting bracket a (40); One end of the second slag crushing component group (20) is connected to the other side of the mounting bracket a (40), and the other end of the second slag crushing component group (20) is connected to one side of the mounting bracket b (50); One end of the third slag crushing component group (30) is connected to one side of the mounting bracket b (50), and the other end of the third slag crushing component group (30) is connected to the bottom of the multi-gradient crushing bin (1).

6. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 5, characterized in that: The projections of the mounting bracket a and the mounting bracket b in the direction of the tunnel boring machine cutter head (2) overlap, and the projections fall into the tool mounting portion of the tunnel boring machine cutter head (2).

7. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 6, characterized in that: The mounting bracket a and the mounting bracket b both comprise a plurality of steel bars, one end of each of the steel bars being fixed to the side wall of the multi-gradient crushing bin (1), and the other ends of each of the steel bars extending toward the center of the multi-gradient crushing bin (1) and being fixed together.

8. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 1, characterized in that: The multi-gradient crushing bin (1) is a conical structure, and the diameter of the conical structure on one side close to the tunnel boring machine cutter head (2) is larger than the diameter of the conical structure close to the bottom of the multi-gradient crushing bin (1).

9. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 1, characterized in that: A plurality of crushing protrusions (6) for crushing slag are also provided on the side wall of the multi-gradient crushing bin (1).

10. The tunneling slag multi-gradient graded crushing pipe jacking machine according to claim 1, characterized in that: A through hole is provided at the bottom of the multi-gradient crushing bin (1), and the through hole is connected to the slag conveying mechanism (4).

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