Backfill slag paving and compacting device and heading machine

Abstract

The invention belongs to the field of tunneling equipment, and particularly provides a backfill slag flattening and compacting device and a tunneling machine. The backfill slag flattening and compacting device comprises a trailer, a flattening device and a compacting device are installed at the bottom of the trailer, the flattening device comprises a rack, a flattening mechanism capable of moving front and back to flatten backfill slag is arranged on the rack, and the compacting device comprises a compacting mechanism located behind the flattening mechanism and used for compacting the backfill slag. And the paving device and the compacting device are not higher than the trailer. The heading machine comprises the backfill slag flattening and compacting device. The paving device and the compacting device do not occupy too much space of the tunnel, and material conveying and passing of workers are facilitated. And moreover, workers are not easy to mistakenly enter the working areas of the paving device and the compacting device, so that the safety is improved.

Description

Technical Field

[0001] The invention belongs to the field of tunneling equipment, and in particular relates to a backfill slag flattening and compacting device and a tunneling machine. Background Art

[0002] Full-face tunnel boring machines (hereinafter referred to as tunnel boring machines) are now widely used in tunnel construction in the fields of highways, railways, water diversion, mining, etc. due to their high efficiency, safety, and environmental protection. Tunnels in the above fields generally require a flat tunnel floor to facilitate vehicle travel and material transportation, etc.

[0003] The cross section of a tunnel directly excavated by a general roadheader is circular. In the mining field, in order to flatten the bottom of the tunnel, the conventional practice is to manually transport the bottom paving material to the bottom of the tunnel (tunnel) after the roadheader completes the excavation, and then carry out the bottom paving operation. This method is inefficient and requires a lot of manual work.

[0004] In order to solve the above problems, the invention patent application of the applicant with application publication number CN116591706A provides a tunnel excavation synchronous bottom paving construction method, rear supporting equipment and tunnel boring machine. The rear supporting equipment includes a material (slag) device, a flattening device and a compacting device from front to back. The material dividing device can divert part of the slag generated during the excavation process to the bottom of the tunnel, the flattening device can flatten (pave) the backfill slag at the bottom, and the compacting device can compact (compact) the flattened slag. The flattening device is installed on the rear supporting trailer (hereinafter referred to as the trailer), which is a gantry trailer. The flattening device is specifically installed on the top of the trailer. The flattening device includes a flattening frame that can be lifted up and down, and a flattening mechanism that can move forward and backward is installed on the flattening frame. The compacting device includes a compacting trolley or a manual hand-held compacting machine. During the construction process, the slag can be backfilled synchronously according to actual needs, and the backfill slag can be flattened and compacted, thereby improving the construction efficiency.

[0005] In some mining projects, it is necessary to continue to arrange monorail cranes on the top of the tunnel during the construction process to transport materials required for construction (such as tools, anchors, main engine related accessories) to the front. However, in the above technical solution, the bulldozer and compaction device occupy a large space in the height direction of the tunnel, affecting the normal transportation of materials. In addition, the walking passage for workers to pass during construction is generally arranged at the waist position on one or both sides of the tunnel. The above technical solution also affects the normal layout of the walking passage. If a worker accidentally enters the working area of ​​the bulldozer and compaction device, serious safety operation accidents may occur. Summary of the invention

[0006] The purpose of the present invention is to provide a backfill slag flattening and compacting device to solve the technical problems in the prior art that the bulldozing device and compacting device of the tunnel boring machine that can synchronously backfill slag affect the passage of materials and workers and are not safe enough. The purpose of the present invention is also to provide a tunnel boring machine to solve the same technical problem.

[0007] In order to achieve the above-mentioned purpose, the technical solution of a backfill slag flattening and compacting device provided by the present invention is: A backfill slag flattening and compacting device comprises a trailer, a flattening device and a compacting device are installed at the bottom of the trailer, the flattening device comprises a frame, a flattening mechanism which can move forward and backward to flatten the backfill slag is provided on the frame, the compacting device comprises a compacting mechanism located behind the flattening mechanism for compacting the backfill slag, and both the flattening device and the compacting device are not higher than the trailer.

[0008] As a further improvement, an opening open up and down is provided in the transverse center position of the frame, and the opening is used to be arranged directly below the slag separating device of the tunnel boring machine to form a channel for backfill slag to pass through, and the paving mechanism can move back and forth at the opening.

[0009] As a further improvement, the compacting mechanism is installed at the rear end of the frame.

[0010] As a further improvement, the paving mechanism includes a guide frame installed on the frame for front and rear guides, and a turntable is installed on the guide frame, which moves forward and backward with the guide frame and can rotate relative to the guide frame to level the backfill slag, and the rotation axis of the turntable extends vertically.

[0011] As a further improvement, the compacting mechanism includes a pressure wheel frame and a compacting wheel rotatably mounted on the pressure wheel frame, and the outer peripheral surface of the compacting wheel constitutes a compacting surface for compacting the backfill slag.

[0012] As a further improvement, the pressure wheel frame is configured to swing back and forth up and down to drive the compacting wheel to vibrate back and forth.

[0013] As a further improvement, walking mechanisms for moving along the left and right walls of the tunnel are provided on the left and right sides of the frame.

[0014] The present invention is a pioneering invention, and its beneficial effects are as follows: the paving device and the compacting device configured by the backfill slag paving and compacting device in the present invention are both mounted on a trailer and can move with the trailer. Compared with the scheme of setting up an independent compacting trolley or a manual hand-held compacting device to compact the backfill slag, the actual construction area of ​​the compacting device is basically determined, which is convenient for construction management and improves safety. At the same time, the paving device and the compacting device are both installed at the bottom of the trailer, and the paving device and the compacting device are not higher than the trailer. In this case, the paving device and the compacting device will not occupy a large vertical space and horizontal space, which is convenient for arranging the material transportation system and the walking passage for personnel at the construction site, and is convenient for material transportation and personnel passage. Moreover, since the paving device and the compacting device are located at a lower position, generally no staff will mistakenly enter the corresponding working area, so that the construction can be carried out safely.

[0015] In order to achieve the above-mentioned purpose, another technical solution of a backfill slag flattening and compacting device provided by the present invention is: A backfill slag flattening and compacting device comprises two trailers arranged in front and back, a flattening device is installed at the bottom of the front trailer, and a compacting device is installed at the bottom of the rear trailer, the flattening device comprises a frame, a flattening mechanism which can move forward and backward to flatten the backfill slag is provided on the frame, and the compacting device comprises a compacting mechanism for compacting the backfill slag, and both the flattening device and the compacting device are not higher than the trailers.

[0016] As a further improvement, an opening open up and down is provided in the transverse center position of the frame, and the opening is used to be arranged directly below the slag separating device of the tunnel boring machine to form a channel for backfill slag to pass through, and the paving mechanism can move back and forth at the opening.

[0017] As a further improvement, walking mechanisms for moving along the left and right walls of the tunnel are provided on the left and right sides of the frame.

[0018] As a further improvement, the paving mechanism includes a guide frame installed on the frame for front and rear guides, and a turntable is installed on the guide frame, which moves forward and backward with the guide frame and can rotate relative to the guide frame to level the backfill slag, and the rotation axis of the turntable extends vertically.

[0019] As a further improvement, the compacting mechanism includes a pressure wheel frame and a compacting wheel rotatably mounted on the pressure wheel frame, and the outer peripheral surface of the compacting wheel constitutes a compacting surface for compacting the backfill slag.

[0020] As a further improvement, the pressure wheel frame is configured to swing back and forth up and down to drive the compacting wheel to vibrate back and forth.

[0021] The present invention is a pioneering invention, and its beneficial effects are as follows: the paving device and the compacting device configured by the backfill slag paving and compacting device in the present invention are both mounted on a trailer and can move with the trailer. Compared with the scheme of setting up an independent compacting trolley or a manual hand-held compacting device to compact the backfill slag, the actual construction area of ​​the compacting device is basically determined, which is convenient for construction management and improves safety. At the same time, the paving device and the compacting device are both installed at the bottom of the trailer, and the paving device and the compacting device are not higher than the trailer. In this case, the paving device and the compacting device will not occupy a large vertical space and horizontal space, which is convenient for arranging the material transportation system and the walking passage for personnel at the construction site, and is convenient for material transportation and personnel passage. Moreover, since the paving device and the compacting device are located at a lower position, generally no staff will mistakenly enter the corresponding working area, so that the construction can be carried out safely.

[0022] To achieve the above object, the technical solution of a roadheader provided by the present invention is: A tunnel boring machine includes a slag separating device, which is used to receive slag sent from the front and divert the slag to the bottom of the tunnel to form backfill slag. The tunnel boring machine also includes a backfill slag flattening and compacting device, which includes a trailer, and a flattening device and a compacting device are installed at the bottom of the trailer. The flattening device includes a frame, and the frame is provided with a flattening mechanism that can move forward and backward to flatten the backfill slag. The compacting device includes a compacting mechanism located behind the flattening mechanism for compacting the backfill slag, and both the flattening device and the compacting device are not higher than the trailer.

[0023] As a further improvement, an opening open up and down is provided in the transverse center position of the frame, and the opening is used to be arranged directly below the slag separating device of the tunnel boring machine to form a channel for backfill slag to pass through, and the paving mechanism can move back and forth at the opening.

[0024] As a further improvement, the compacting mechanism is installed at the rear end of the frame.

[0025] As a further improvement, the paving mechanism includes a guide frame installed on the frame for front and rear guides, and a turntable is installed on the guide frame, which moves forward and backward with the guide frame and can rotate relative to the guide frame to level the backfill slag, and the rotation axis of the turntable extends vertically.

[0026] As a further improvement, the compacting mechanism includes a pressure wheel frame and a compacting wheel rotatably mounted on the pressure wheel frame, and the outer peripheral surface of the compacting wheel constitutes a compacting surface for compacting the backfill slag.

[0027] As a further improvement, the pressure wheel frame is configured to swing back and forth up and down to drive the compacting wheel to vibrate back and forth.

[0028] As a further improvement, walking mechanisms for moving along the left and right walls of the tunnel are provided on the left and right sides of the frame.

[0029] The present invention belongs to an improved invention creation, and its beneficial effect is that the tunnel boring machine in the present invention can also realize synchronous backfilling during the tunneling process, thereby improving the bottom paving efficiency. Different from the prior art, the paving device and the compacting device configured by the backfill slag paving and compacting device are both mounted on a trailer and can move with the trailer. Compared with the scheme of setting up an independent compacting trolley or a manual hand-held compacting device to compact the backfill slag, the actual construction area of ​​the compacting device is basically determined, which is convenient for construction management and improves safety. At the same time, the paving device and the compacting device are both installed at the bottom of the trailer, and the paving device and the compacting device are not higher than the trailer. In this case, the paving device and the compacting device will not occupy a large vertical space and horizontal space, which is convenient for arranging the material transportation system and the personnel walking passage at the construction site, and is convenient for material transportation and personnel passage. Moreover, since the position of the paving device and the compacting device is relatively low, generally no staff will mistakenly enter the corresponding working area, so that the construction can be carried out safely.

[0030] To achieve the above object, another technical solution of a roadheader provided by the present invention is: A tunnel boring machine includes a slag sorting device, which is used to receive slag sent from the front and divert the slag to the bottom of the tunnel to form backfill slag. The tunnel boring machine also includes a backfill slag flattening and compacting device, which includes two trailers arranged in front and behind, a flattening device is installed at the bottom of the front trailer, and a compacting device is installed at the bottom of the rear trailer. The flattening device includes a frame, and the frame is provided with a flattening mechanism that can move forward and backward to flatten the backfill slag. The compacting device includes a compacting mechanism for compacting the backfill slag, and both the flattening device and the compacting device are not higher than the trailers.

[0031] As a further improvement, an opening open up and down is provided in the transverse center position of the frame, and the opening is used to be arranged directly below the slag separating device of the tunnel boring machine to form a channel for backfill slag to pass through, and the paving mechanism can move back and forth at the opening.

[0032] As a further improvement, walking mechanisms for moving along the left and right walls of the tunnel are provided on the left and right sides of the frame.

[0033] As a further improvement, the paving mechanism includes a guide frame installed on the frame for front and rear guides, and a turntable is installed on the guide frame, which moves forward and backward with the guide frame and can rotate relative to the guide frame to level the backfill slag, and the rotation axis of the turntable extends vertically.

[0034] As a further improvement, the compacting mechanism includes a pressure wheel frame and a compacting wheel rotatably mounted on the pressure wheel frame, and the outer peripheral surface of the compacting wheel constitutes a compacting surface for compacting the backfill slag.

[0035] As a further improvement, the pressure wheel frame is configured to swing back and forth up and down to drive the compacting wheel to vibrate back and forth.

[0036] The present invention belongs to an improved invention creation, and its beneficial effect is that the tunnel boring machine in the present invention can also realize synchronous backfilling during the tunneling process, thereby improving the bottom paving efficiency. Different from the prior art, the paving device and the compacting device configured by the backfill slag paving and compacting device are both mounted on a trailer and can move with the trailer. Compared with the scheme of setting up an independent compacting trolley or a manual hand-held compacting device to compact the backfill slag, the actual construction area of ​​the compacting device is basically determined, which is convenient for construction management and improves safety. At the same time, the paving device and the compacting device are both installed at the bottom of the trailer, and the paving device and the compacting device are not higher than the trailer. In this case, the paving device and the compacting device will not occupy a large vertical space and horizontal space, which is convenient for arranging the material transportation system and the personnel walking passage at the construction site, and is convenient for material transportation and personnel passage. Moreover, since the position of the paving device and the compacting device is relatively low, generally no staff will mistakenly enter the corresponding working area, so that the construction can be carried out safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a front view of the tunnel boring machine embodiment 1 of the present invention during construction; Figure 2 for Figure 1 Cross-sectional view of the intermediate slag separation device; Figure 3 for Figure 1 A cross-sectional view of the middle paving device; Figure 4 for Figure 1 A cross-sectional view of the middle compaction device; Figure 5 for Figure 1 Top view of the backfill slag leveling and compacting device.

[0038] Description of reference numerals: 1. Cutter disc; 2. Main drive; 3. Shield; 4. Main machine belt conveyor; 5. Rear supporting belt conveyor; 6. Trailer; 7. Slag separation device; 8. Paving device; 9. Compacting device; 10. Continuous belt conveyor; 701. Slag inlet; 702. Push plate cylinder; 801. Frame; 8011. Opening; 802. Sliding shoe; 803. Rotary plate; 804. Sliding cylinder; 805. Drag chain; 806. Guide frame; 807. Rotary drive device; 901. Compacting wheel; 902. Pressing wheel frame; 903. Swinging cylinder. DETAILED DESCRIPTION

[0039] In order to improve the safety of the synchronous backfilling of slag during the excavation process and not affect the passage of materials and workers, the basic technical concept of the present invention is to carry the paving device for paving the backfill slag and the compacting device for compacting the backfill slag on the bottom of the trailer, and make the paving device and the compacting device no higher than the trailer. In this case, the paving device and the compacting device basically work in the middle and lower area of ​​the trailer, which will not occupy too much space in the tunnel, and is convenient for material transportation and the passage of workers. In addition, it is not easy for workers to mistakenly enter the working area of ​​the paving device and the compacting device, which improves safety.

[0040] Based on the above concept, the present invention is further described in detail in combination with embodiments.

[0041] Specific embodiment 1 of the tunnel boring machine provided by the present invention: The tunnel boring machine provided in this embodiment is as follows: Figure 1 As shown, consistent with conventional TBM (hard rock tunnel boring machine), the tunnel boring machine in this embodiment includes a main machine, which includes a cutter disc 1, a main drive 2, a shield body 3, and a main machine belt conveyor 4. The main drive 2 is mounted on the shield body 3, and the cutter disc 1 is mounted on the main drive 2. Under the action of the main drive 2, it can rotate to break rocks. The front end of the main machine belt conveyor 4 extends between the cutter disc 1 and the shield body 3. The rotation of the cutter disc 1 can shovel up the slag generated by excavation and carry the slag to the main machine belt conveyor 4, which is then transported backward by the main machine belt conveyor 4. The tunnel boring machine also includes a rear supporting system, which includes a trailer 6, and the trailer 6 is equipped with corresponding supporting equipment required by the main machine, for example, the trailer 6 is equipped with a rear supporting belt conveyor 5, and the rear supporting belt conveyor 5 is used to receive the slag sent by the main machine belt conveyor 4 and continue to transport it backward.

[0042] In order to realize the simultaneous backfilling of slag to the bottom of the tunnel during the excavation process, in this embodiment, the tunnel boring machine is also equipped with a slag separation device 7, which can divert the slag, divert part of the slag on the rear supporting belt conveyor 5 to the bottom of the tunnel, and continue to discharge part of the slag out of the tunnel, which can be discharged out of the tunnel using a continuous belt conveyor 10. As a specific embodiment of the slag separation device 7, Figure 2 As shown, the slag separation device 7 includes a slag inlet 701 and two slag outlets. The slag separation device 7 is installed at the rear end of the rear supporting belt conveyor 5. The slag delivered to the rear end of the rear supporting belt conveyor 5 can enter the slag separation device 7 from the slag inlet 701. A slag separation guide plate is also provided inside the slag separation device 7. The slag separation guide plate can swing to control the flow direction of the slag entering from the slag inlet 701. Specifically, a push plate cylinder 702 can be used to push the slag separation guide plate to switch at different positions. When the slag is discharged from one of the slag outlets, the slag flows directly to the bottom of the tunnel to form backfill slag. When the slag is discharged from another slag outlet, the slag flows to the continuous belt conveyor 10 and continues to be sent out of the tunnel. Of course, those skilled in the art will understand that the slag separation device 7 can also take other forms, such as a plow-type discharger.

[0043] The backfill slag discharged by the slag separation device 7 is in a piled and loose state. In order to flatten and compact the backfill slag, the tunneling machine in this embodiment also includes a backfill slag flattening and compacting device, such as Figure 1 As shown, the backfill slag flattening and compacting device includes a trailer 6 and a flattening device 8 and a compacting device 9 mounted on the trailer 6. Specifically, the flattening device 8 and the compacting device 9 are installed at the bottom of the trailer 6. The function of the flattening device 8 is to flatten the backfill slag. Figure 3 and Figure 5 As shown, the paving device 8 includes a frame 801, on which a paving mechanism that can move forward and backward to pave the backfill slag is provided. The frame 801 is fixed relative to the trailer 6 and can move with the trailer 6. The paving mechanism can flatten the piled backfill slag by reciprocating motion. The compacting device 9 includes a compacting mechanism for compacting the backfill slag. The specific construction process is to first pave and then compact. The compacting mechanism should be located behind the paving mechanism. In addition, the paving device 8 and the compacting device 9 are not higher than the trailer 6.

[0044] Different from the prior art, the working area of ​​the backfill slag leveling and compacting device in this embodiment is roughly determined, that is, the middle and lower part of the trailer 6, which can reduce the occupied space, facilitate the arrangement of the material transportation system (monorail crane) on the top of the tunnel, and also facilitate the arrangement of pedestrian passages on one or both sides of the tunnel, which is convenient for the passage of materials and workers. In addition, in this case, the workers generally will not mistakenly enter the working area of ​​the leveling device 8 and the compacting device 9, and the safety is also high.

[0045] For the roadheader, in order to reduce the space occupied by the trailer 6, as Figure 1 As shown, the trailer 6 can adopt a flat plate structure, and there is a height difference between the trailer 6 and the top of the shield body 3, and the space corresponding to the height difference constitutes a space for materials to pass through.

[0046] Based on the above embodiments, as a preferred embodiment, Figure 2 and 5 As shown, an opening 8011 opened up and down is provided at the horizontal center of the frame 801. The opening 8011 is arranged directly below the slag separator 7 when in use. The backfill slag discharged from the slag separator 7 can pass through the opening 8011 and fall to the bottom of the tunnel. The paving mechanism can move forward and backward at the opening 8011. The paving device 8 in this embodiment has a compact structure, which is equivalent to the backfill slag passing through the inside to fall to the bottom of the tunnel. At this time, the length of the paving device 8 can be controlled within a shorter range, making the steering of the tunnel boring machine more flexible.

[0047] It should be noted that in addition to adopting the above-mentioned preferred method, in other alternative embodiments, the paving device 8 can also adopt a device in the prior art that does not have an opening 8011 for backfill slag to pass through, such as the backfill slag leveling device disclosed in the utility model patent with authorization announcement number CN220769538U.

[0048] On the basis of the above preferred embodiments, preferably, Figure 5 As shown, the compacting device 9 is installed at the rear end of the frame 801. At this time, the compacting device 9 and the paving device 8 are integrated into one, and the compactness is better.

[0049] However, it should be noted that those skilled in the art will understand that, in addition to integrating the compacting device 9 on the frame 801 of the paving device 8 , other auxiliary mounting frames can certainly be used to directly mount the compacting device 9 on the trailer 6 .

[0050] Based on any of the above embodiments, as an embodiment with better paving effect, Figure 2 and Figure 3 As shown, the paving mechanism includes a guide frame 806 installed on the frame 801 for front and rear guidance. The specific guide structure can adopt the existing commonly used guide structure, such as the corresponding structure of the guide groove and the slider, the guide column and the sliding sleeve, etc., which is not specifically limited here. In order to realize the front and rear movement of the guide frame 806, a driving device for driving the guide frame 806 to move forward and backward should be configured accordingly, such as a sliding cylinder 804. The extension and contraction of the sliding cylinder 804 can drive the guide frame 806 to slide along the frame 801. A rotating disk 803 is installed on the guide frame 806, which moves forward and backward with the guide frame 806 and can rotate relative to the guide frame 806, wherein the rotation axis of the rotating disk 803 extends vertically, so that the backfill slag can be swept flat by the rotation of the rotating disk 803. Accordingly, a slewing drive device 807 for driving the slewing disk 803 to rotate is installed on the frame 801. The slewing drive device 807 can be an electric motor or a hydraulic motor, and can transmit power to the slewing disk 803 through a transmission mechanism (such as a slewing bearing), thereby driving the slewing disk 803 to rotate. Considering that the guide frame 806 can move forward and backward, a drag chain 805 (tank chain) can be used to protect the pipeline connected to the slewing drive device 807.

[0051] Compared with the method of only "pushing slag" in the prior art, in the above preferred embodiment, in addition to "pushing slag", the action of the turntable 803 can also play the role of "sweeping slag", and a better paving effect can be obtained.

[0052] As an optional embodiment of the compacting device 9, Figure 4 and Figure 5As shown, the compacting device 9 includes a roller frame 902, on which a rotatable compacting wheel 901 is mounted, and the outer peripheral surface of the compacting wheel 901 constitutes a compacting surface for compacting the backfill slag (equivalent to a road roller). As the compacting wheel 901 rolls, a larger area of ​​backfill slag can be compacted directly, which is convenient and efficient.

[0053] Of course, in other embodiments, it is not excluded that a tamping machine capable of reciprocating up and down is used as the compacting device 9.

[0054] Preferably, in order to achieve a better compaction effect, the compaction wheel 901 can also vibrate up and down to compact the backfill slag. Specifically, the compaction wheel frame 902 can be configured to swing up and down, thereby driving the compaction wheel 901 to vibrate back and forth. Figure 4 and Figure 5 As shown, in the case where the compacting device 9 is installed on the frame 801, the pressure wheel frame 902 can be hinged on the frame 801, and a swing cylinder 903 for driving the pressure wheel frame 902 to swing is connected between the pressure wheel frame 902 and the frame 801. At this time, the compacting device 9 can realize the combination of "pressing" and "tamping", and the compacting effect is better.

[0055] Specific embodiment 2 of the tunnel boring machine provided by the present invention: Compared with Example 1, the purpose of this embodiment is to provide a solution in which a paving device 8 and a compacting device 9 are installed on different trailers 6, which has the same effect of facilitating the passage of materials / personnel and high safety. Specifically, the backfill slag paving and compacting device includes two trailers 6 arranged in front and behind, wherein a paving device 8 is installed at the bottom of the front trailer 6, and a compacting device 9 is installed at the bottom of the rear trailer 6. Similarly, the compacting device 9 and the paving device 8 are not higher than the trailer 6. The specific structures of the compacting device 9 and the paving device 8 are consistent with those of Example 1 and will not be expanded here.

[0056] Specific embodiments of the backfill slag flattening and compacting device provided by the present invention: The embodiment of the backfill slag leveling and compacting device is the backfill slag leveling and compacting device described in Embodiment 1 or Embodiment 2 of the above-mentioned tunnel boring machine, and will not be described in detail here.

[0057] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A backfill slag flattening and compacting device, characterized in that: It includes a trailer, at the bottom of which are installed a leveling device and a compacting device. The leveling device includes a frame, on which is provided a leveling mechanism which can move forward and backward to level the backfill slag. The compacting device includes a compacting mechanism located behind the leveling mechanism for compacting the backfill slag. Both the leveling device and the compacting device are not higher than the trailer.

2. The backfill slag flattening and compacting device according to claim 1 is characterized in that: An opening open up and down is provided at the transverse center of the frame, and the opening is used to be arranged directly below the slag separating device of the tunneling machine to form a channel for backfill slag to pass through, and the paving mechanism can move forward and backward at the opening.

3. The backfill slag flattening and compacting device according to claim 2 is characterized in that: The compacting mechanism is installed at the rear end of the frame.

4. The backfill slag flattening and compacting device according to claim 1, 2 or 3, characterized in that: The paving mechanism comprises a guide frame installed on the frame for front and rear guides, on which is installed a turntable which moves forward and backward with the guide frame and can rotate relative to the guide frame to level the backfill slag, and the rotation axis of the turntable extends vertically.

5. The backfill slag flattening and compacting device according to claim 1, 2 or 3, characterized in that: The compacting mechanism comprises a pressing wheel frame and a compacting wheel rotatably mounted on the pressing wheel frame, and the outer peripheral surface of the compacting wheel constitutes a compacting surface for compacting the backfill slag.

6. The backfill slag flattening and compacting device according to claim 5 is characterized in that: The pressure wheel frame is configured to swing back and forth up and down to drive the compacting wheel to vibrate back and forth.

7. The backfill slag flattening and compacting device according to claim 2 or 3, characterized in that: The left and right sides of the frame are provided with walking mechanisms for moving along the left and right sides of the tunnel walls.

8. A backfill slag flattening and compacting device, characterized in that: It comprises two trailers arranged in front and back, a paving device is installed at the bottom of the front trailer, and a compacting device is installed at the bottom of the rear trailer. The paving device comprises a frame, and a paving mechanism which can move forward and backward to flatten the backfill slag is provided on the frame. The compacting device comprises a compacting mechanism for compacting the backfill slag. Both the paving device and the compacting device are not higher than the trailers.

9. The backfill slag flattening and compacting device according to claim 8, characterized in that: An opening open up and down is provided at the transverse center of the frame, and the opening is used to be arranged directly below the slag separating device of the tunneling machine to form a channel for backfill slag to pass through, and the paving mechanism can move forward and backward at the opening.

10. The backfill slag flattening and compacting device according to claim 9, characterized in that: The left and right sides of the frame are provided with walking mechanisms for moving along the left and right sides of the tunnel walls.

11. The backfill slag flattening and compacting device according to claim 8, 9 or 10, characterized in that: The paving mechanism comprises a guide frame installed on the frame for front and rear guides, on which is installed a turntable which moves forward and backward with the guide frame and can rotate relative to the guide frame to level the backfill slag, and the rotation axis of the turntable extends vertically.

12. The backfill slag flattening and compacting device according to claim 8, 9 or 10, characterized in that: The compacting mechanism comprises a pressing wheel frame and a compacting wheel rotatably mounted on the pressing wheel frame, and the outer peripheral surface of the compacting wheel constitutes a compacting surface for compacting the backfill slag.

13. The backfill slag flattening and compacting device according to claim 12, characterized in that: The pressure wheel frame is configured to swing back and forth up and down to drive the compacting wheel to vibrate back and forth.

14. A tunnel boring machine, comprising a slag separating device, which is used to receive the slag sent from the front and to separate the slag to the bottom of the tunnel to form backfill slag, wherein: The tunnel boring machine also includes the backfill slag leveling and compacting device according to any one of claims 1-7 or 8-13.

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