Soil and stone separation device for shield tunneling machine construction

Abstract

The invention discloses a soil and stone separation device for shield tunneling machine construction. The soil and stone separation device comprises a quarrying box, a separation box and a belt conveyor. The separation box is located below the spiral unearthed machine and comprises a separation box body, a spiral shaft, a driving module, a plurality of rolling shafts and a plurality of blocking strips. The plurality of rolling shafts and the plurality of blocking strips are arranged at the upper opening of the separation box body in a crossed manner to form a latticed structure; the rolling shafts are arranged in parallel, the two ends of each rolling shaft are detachably connected with the separating box body in a clamped mode, and the two ends of each blocking strip are detachably connected with the separating box body in a clamped mode. The belt conveyor is located below the lower opening of the separation box body, the spiral shaft is located in the separation box body, and the spiral shaft rotates to convey muck in the separation box body to the belt conveyor; the quarrying box is located at one end of the separation box body, and the driving module is used for driving the tops of the multiple rolling shafts to rotate towards the end where the quarrying box is located, so that gravel is conveyed into the quarrying box. The gravel and the muck are smoothly separated and transferred respectively, and the device can be suitable for gravel with different particle sizes.

Description

Technical Field

[0001] The present invention belongs to the technical field of shield construction, and particularly relates to a soil and stone separation device for shield machine construction. Background Art

[0002] Shield machines are widely used in tunnel engineering such as subways, railways, highways, and municipal works. Earth pressure balance shield machines have advantages such as high work efficiency and low cost, and are widely used in shield construction. When a shield machine passes through a formation, the crushed sand, gravel, and muck need to be transported out through a conveyor belt.

[0003] Currently, there are mainly two ways to transport sand, gravel, and muck:

[0004] (1) Sand, gravel, and muck directly fall from the outlet of the screw muck conveyor onto the belt conveyor for transportation. However, this method causes serious damage to the equipment. If relevant components are damaged, the machine needs to be stopped for repair and replacement, which affects the construction period; moreover, there is a risk of stones falling and injuring people, and the operation safety is low.

[0005] (2) A device with a filter screen is added at the outlet of the screw muck conveyor. Refer to the attached Figure 1 , Patent CN207478930U discloses a muck screening device for shield construction. After the sand, gravel, and muck are discharged from the screw muck conveyor 05, they fall on the filter screen 01. The muck passing through the filter screen 01 enters the secondary agitator 06, and the sand and gravel that do not pass through the filter screen 01 enter the storage tank 03 under the action of gravity through the diversion cylinder 02. The storage tank 03 can slide on the guide rail 04 to realize the separate transportation of sand and gravel. However, the soil screening efficiency of the filter screen 01 is low, the particle size of the sand and gravel that can be screened cannot be adjusted, and when encountering a formation rich in large particle size stones, the construction progress is slow, and there is a risk of blockage.

[0006] In addition, when encountering a water-rich formation in traditional earth pressure shield construction, gushing is likely to occur, and neither of the above two methods can effectively buffer the gushing. Summary of the Invention

[0007] In view of this, the present invention provides a soil and stone separation device for shield machine construction, which can smoothly separate sand, gravel, and muck and transport them separately, can be applicable to sand and gravel of different particle sizes, and can play a buffering role when encountering gushing, improving the operation safety.

[0008] A soil and stone separation device for shield machine construction is used to separate sand, gravel, and muck from the screw muck conveyor and transport them separately; it includes a quarry box, a separation box, and a belt conveyor;

[0009] The separation box is located below the screw muck conveyor. The separation box includes a separation box body, a spiral shaft, a drive module, a plurality of rollers, and a plurality of blocking bars;

[0010] The separation box body is provided with an upper opening and a lower opening; a number of rollers and a number of blocking bars are cross - arranged at the upper opening of the separation box body to form a grid - like structure for screening and separating sand and soil.

[0011] A number of rollers are arranged in parallel, and both ends of each roller are detachably clamped to the separation box body, and each roller can rotate around its own axis.

[0012] Both ends of each blocking bar are detachably clamped to the separation box body.

[0013] The belt conveyor is located below the lower opening of the separation box body, and the spiral shaft is located inside the separation box body. The rotation of the spiral shaft can convey the soil in the separation box body to the belt conveyor through the lower opening.

[0014] The quarry box is located at one end of the separation box body, and the driving module is used to drive the tops of a number of rollers to rotate towards the end where the quarry box is located, so as to convey the sand to the quarry box.

[0015] Further, a number of rollers include a driving shaft and a number of driven shafts; the separation box body includes two opposite side plates, namely side plate Ⅰ and side plate Ⅱ.

[0016] Both ends of the driving shaft pass through side plate Ⅰ and side plate Ⅱ respectively, and the driving shaft is rotatably connected to side plate Ⅰ and side plate Ⅱ through bearings respectively; after both ends of the driving shaft pass through the corresponding side plates, a gear Ⅰ is coaxially and fixedly connected respectively.

[0017] Bar - shaped openings are provided on side plate Ⅰ and side plate Ⅱ. One end of the driven shaft is clamped to the bar - shaped opening of side plate Ⅰ through a toothed bearing Ⅰ. After the other end of the driven shaft passes through the bar - shaped opening of side plate Ⅱ, a gear Ⅱ is provided, and the driven shaft is clamped to the bar - shaped opening through a toothed bearing Ⅱ; corresponding limit pieces are arranged in the bar - shaped openings to limit the outer rings of the toothed bearing Ⅰ and the toothed bearing Ⅱ from rotating.

[0018] The driving module includes a motor and a chain. The gear Ⅰ at one end of the driving shaft located on side plate Ⅱ is connected to the gear Ⅱ through the chain, and the gear Ⅰ at one end of the driving shaft located on side plate Ⅰ is connected to the motor.

[0019] Further, more than one caulking shaft is arranged in parallel between every two rollers. One end of each caulking shaft is clamped to the bar - shaped opening of side plate Ⅰ through a toothed bearing, and the other end is clamped to the bar - shaped opening of side plate Ⅱ through a toothed bearing.

[0020] Further, the blocking bar is wavy, the rollers are arranged one - to - one in the upper openings of the blocking bar, and roller Ⅰ is arranged at the wave crest of the blocking bar. The axial direction of roller Ⅰ is parallel to the axial direction of the roller, and the highest point of roller Ⅰ is not higher than the highest point of the roller.

[0021] Further, each blocking bar includes a cross - beam, a number of support columns and roller Ⅱ.

[0022] Both ends of the cross beam are detachably clamped to the separation box body. A number of bayonets are arranged on the top surface of the cross beam along the length direction. The bottom end of each support column is inserted into and removed from the bayonet of the cross beam, and the second rollers are rotatably connected to the top ends of the support columns one by one;

[0023] The rollers are located between two adjacent support columns one by one. The axial direction of the second rollers is parallel to the axial direction of the rollers, and the highest point of the second rollers is not higher than the highest point of the rollers.

[0024] Furthermore, a mud scraping plate is arranged at the intersection of the blocking strip and the roller in the vertical and horizontal directions. The top of the mud scraping plate is in contact with the roller.

[0025] Furthermore, anti-slip lines are arranged on the outer circumferential surface of the roller.

[0026] Furthermore, a semi-enclosed guardrail is arranged around the upper opening of the separation box body. One end of the upper opening starts from one end Ⅰ of the separation box body, and the semi-enclosed guardrail is open on the side facing the end Ⅰ.

[0027] Furthermore, the upper outlet and the lower outlet of the separation box body are staggered.

[0028] Furthermore, a side box door is arranged on the quarrying box.

[0029] Beneficial effects:

[0030] (1) For the soil and stone separation device for shield machine construction provided by the present invention, the grid-like structure formed by a number of rollers and a number of blocking strips serves as a filter. At the same time, both ends of each roller are detachably clamped to the edge of the upper opening of the separation box body, and both ends of each blocking strip are detachably clamped to the edge of the upper opening; thus, the number of rollers and blocking strips can be adjusted to meet the requirements of different working conditions for different sand particle sizes; and the rollers can rotate and can play a conveying role to convey the screened sand and stones to the quarrying box, realizing the separate transportation of sand and stones and muck.

[0031] (2) By arranging a strip-shaped opening, a toothed bearing Ⅰ and a toothed bearing Ⅱ, the present invention realizes the clamping between the driven shaft and the separation box body, and the driven shaft is detachable to adjust the distance between shafts to meet the requirements of different working conditions for different sand particle sizes.

[0032] (3) More than one caulking shaft is arranged in parallel between every two rollers. By arranging the caulking shaft, it is convenient for installation and disassembly, and at the same time, the opening of the grid-like structure can be reduced, so as to be applicable to sand and stones with smaller particle sizes.

[0033] (4) One of the blocking strips of the present invention is wavy, which can support the stones to prevent irregular stones from getting stuck between two rollers and forming a blockage. In addition, rollers Ⅰ are arranged at the wave crests of the blocking strip, which is convenient for the rollers to convey the stones to the quarrying box.

[0034] (5) By providing a bayonet and support columns, the barrier strip of the present invention can adjust the number of support columns according to the gap between the rollers, and there is no need to replace the barrier strip as a whole for installation.

[0035] (6) A mud scraper is provided at the intersection of the barrier strip of the present invention and the roller up and down. The top of the mud scraper contacts the roller, which can clean the muck on the roller, reduce the adhesion of muck on the roller, and prevent the reduction of friction force from affecting the conveyance of sand and gravel.

[0036] (7) Anti-slip patterns are provided on the outer circumferential surface of the roller of the present invention to increase the friction with sand and gravel and facilitate the smooth conveyance of sand and gravel to the quarry box.

[0037] (8) A semi-surrounding guardrail is provided around the upper opening of the separation box body of the present invention. The guardrail can block sand and gravel, prevent large pieces of sand and gravel from falling directly, and improve the safety of the operation.

[0038] (9) The upper outlet and the lower outlet of the separation box body of the present invention are staggered, so that the separation box body can play a better buffering role when a gush occurs.

[0039] (10) A side box door is provided on the quarry box of the present invention, which is convenient for transferring sand and gravel outwards. Description of the Drawings

[0040] Figure 1 is the structural diagram of the shield construction muck screening device in the prior art;

[0041] Figure 2 is the external structural diagram of the soil and stone separation device for shield machine construction of the present invention;

[0042] Figure 3 is the position relationship diagram between the screw conveyor and the separation box;

[0043] Figure 4 is the perspective view of the soil and stone separation device for shield machine construction of the present invention;

[0044] Figure 5 is the structural diagram of the driving shaft;

[0045] Figure 6 is the structural diagram of the driven shaft;

[0046] Figure 7 is the structural diagram of the gear;

[0047] Figure 8 are the three-view drawings of the separation box, where (1) is the front view, (2) is the left view, and (3) is the top view;

[0048] Figure 9 is Figure 8 the A-A sectional view of (2)

[0049] Figure 10 is Figure 9 a partially enlarged view of B;

[0050] Figure 11 is a schematic diagram of the installation of the limit plug block;

[0051] Figure 12 is a schematic diagram of the installation of the limit stop block;

[0052] Figure 13 is a structural diagram of a barrier strip;

[0053] Figure 14 is the positional relationship between a barrier strip and a roller;

[0054] Figure 15 is a structural diagram of a barrier strip;

[0055] Figure 16 is a structural diagram of a barrier strip and a caulking shaft;

[0056] Among them, 01 - filter screen, 02 - diversion cylinder, 03 - storage tank, 04 - guide rail, 05 - screw soil extractor, 06 - secondary agitator;

[0057] 1 - screw soil extractor, 2 - quarry box, 3 - separation box, 31 - guardrail, 32 - barrier strip, 321 - roller Ⅰ, 322 - mud scraping plate Ⅰ, 33 - screw shaft, 34 - roller, 341 - driving shaft, 3411 - gear Ⅰ, 3412 - bearing, 3413 - anti-slip pattern Ⅰ; 342 - driven shaft, 3421 - toothed bearing Ⅰ, 3422 - anti-slip pattern Ⅱ, 3423 - toothed bearing Ⅱ, 3424 - gear Ⅱ; 35 - separation box body, 351 - rack, 36 - chain, 37 - motor; 381 - roller Ⅱ, 382 - support column, 383 - bayonet, 384 - cross beam, 385 - mud scraping plate Ⅱ; 39 - caulking shaft, 4 - belt conveyor, 5 - limit plug block, 6 - limit stop block. Specific embodiments

[0058] The following combines the accompanying drawings and gives embodiments to describe the present invention in detail.

[0059] Embodiment 1:

[0060] This embodiment provides a soil and stone separation device for shield machine construction, which is used to separate the sand and soil of the screw soil extractor 1 and transport them separately; see the attached Figure 2-4 , the soil and stone separation device includes a quarry box 2, a separation box 3 and a belt conveyor 4;

[0061] The separation box 3 is located below the screw soil extractor 1, and the separation box 3 includes a separation box body 35, a screw shaft 33, a drive module, a plurality of rollers 34 and a plurality of barrier strips 32;

[0062] The separation box body 35 is provided with an upper opening and a lower opening; a plurality of rollers 34 and a plurality of blocking bars 32 are cross - arranged at the upper opening of the separation box body 35 to form a grid - like structure for screening and separating sand and muck.

[0063] A plurality of rollers 34 are arranged in parallel. Both ends of each roller 34 are detachably clamped to the separation box body 35 respectively, and each roller 34 can rotate around its own axis.

[0064] Both ends of each blocking bar 32 are detachably clamped to the separation box body 35 respectively.

[0065] The belt conveyor 4 is located below the lower opening of the separation box body 35, and the spiral shaft 33 is located inside the separation box body 35. The rotation of the spiral shaft 33 can convey the muck in the separation box body 35 to the belt conveyor 4 through the lower opening.

[0066] The quarrying box 2 is located at one end of the separation box body 35. The driving module is used to drive the tops of a plurality of rollers 34 to rotate towards the end where the quarrying box 2 is located, so as to convey the sand to the inside of the quarrying box 2.

[0067] For the earth - rock separation device for shield machine construction provided in this embodiment, the grid - like structure formed by the intersection of a plurality of rollers 34 and a plurality of blocking bars 32 functions as a filter screen. At the same time, both ends of each roller 34 are detachably clamped to the edge of the upper opening of the separation box body 35 respectively, and both ends of each blocking bar 32 are detachably clamped to the upper opening edge respectively; thus, the number of rollers 34 and blocking bars 32 can be adjusted to meet the requirements of different sand particle sizes in different working conditions; and the rollers 34 can rotate and can function as a conveyor to convey the screened sand to the quarrying box 2, realizing the separate transportation of sand and muck.

[0068] See Appendix Figure 5-8 A plurality of rollers 34 include a driving shaft 341 and a plurality of driven shafts 342; the separation box body 35 includes two opposite side plates, namely side plate Ⅰ and side plate Ⅱ.

[0069] Both ends of the driving shaft 341 pass through side plate Ⅰ and side plate Ⅱ respectively, and the driving shaft 341 is rotatably connected to side plate Ⅰ and side plate Ⅱ through bearings 3412 respectively; after both ends of the driving shaft 341 pass through the corresponding side plates, gear Ⅰ 3411 is coaxially fixedly connected respectively.

[0070] See Appendix Figure 9 and Appendix Figure 10, strip-shaped openings are provided on the side plate Ⅰ and the side plate Ⅱ. One end of the driven shaft 342 is clamped with the strip-shaped opening of the side plate Ⅰ through the toothed bearing Ⅰ 3421; after the other end of the driven shaft 342 passes through the strip-shaped opening of the side plate Ⅱ, a gear Ⅱ 3424 is provided, and the driven shaft 342 is clamped with the strip-shaped opening through the toothed bearing Ⅱ 3423; corresponding limit members are provided in the strip-shaped opening for restricting the rotation of the outer rings of the toothed bearing Ⅰ 3421 and the toothed bearing Ⅱ 3423;

[0071] Further, a rack 351 is provided at the bottom of the strip-shaped opening; the outer gear on the toothed bearing Ⅰ 3421 meshes with the rack 351 at the bottom of the strip-shaped opening, and the outer gear on the toothed bearing Ⅱ 3423 meshes with the rack 351 at the bottom of the strip-shaped opening;

[0072] In one embodiment, see the appendix Figure 11 , the limit member is a limit plug 5. The limit plug 5 is detachably arranged between the top of the toothed bearing Ⅰ 3421 and the top surface of the strip-shaped opening, and between the top of the toothed bearing Ⅱ 3423 and the top surface of the strip-shaped opening in a one-to-one correspondence. The bottom of the limit plug 5 cooperates with the external teeth of the corresponding toothed bearing, and the top surface contacts the top surface of the strip-shaped opening; thereby limiting the outer ring of the corresponding toothed bearing; when it is necessary to adjust the distance between the shafts, pull out the limit plug 5 and roll the driven shaft 342 to achieve it.

[0073] In another embodiment, see the appendix Figure 12 , the limit member is a limit block 6. Detachable limit blocks 6 are provided on both sides of the toothed bearing Ⅰ 3421 and on both sides of the toothed bearing Ⅱ 3423. The bottom of the limit block 6 meshes with the rack 351 at the bottom of the strip-shaped opening, and the top surface contacts the top surface of the strip-shaped opening, thereby limiting the outer ring of the corresponding toothed bearing; when it is necessary to adjust the distance between the shafts, pull out the limit block 6 and roll the driven shaft 342 to achieve it.

[0074] The driving module includes a motor 37 and a chain 36. The gear Ⅰ 3411 at one end of the driving shaft 341 located on the side plate Ⅱ is connected to the gear Ⅱ 3424 through the chain 36, and the gear Ⅰ 3411 at one end of the side plate Ⅰ is connected to the motor 37. The motor 37 drives the gear Ⅰ 3411 connected thereto to rotate, the driving shaft 341 and the gear Ⅰ 3411 at the other end rotate synchronously, and under the action of the chain 36, the driven gear is driven to rotate synchronously, and further the synchronous rotation of the driven shaft 342 and the driving shaft 341 is achieved;

[0075] The blocking bar 32 is vertically arranged with respect to the roller 34, and the blocking bar 32 is located below the roller 34; a plurality of card slots are provided on two opposite side edges of the upper opening, and both ends of the blocking bar 32 are detachably clamped with the card slots.

[0076] In one embodiment, a mud scraper is provided at the intersection of the blocking strip 32 and the roller 34 in the vertical direction. The top of the mud scraper is in contact with the roller 34 for cleaning the muck on the roller 34, reducing the adhesion of muck to the roller 34, so as to prevent the reduction of friction force from affecting the conveyance of sand and gravel.

[0077] In one embodiment, anti-slip patterns Ⅰ3413 are provided on the outer circumferential surface of the driving shaft 341, and anti-slip patterns Ⅱ3422 are provided on the outer circumferential surface of the driven shaft 342 to increase the friction with the sand and gravel, facilitating the smooth conveyance of the sand and gravel to the quarry box 2.

[0078] In one embodiment, a semi-enclosed guardrail 31 is provided around the upper opening of the separation box body 35. One end of the upper opening starts from one end Ⅰ of the separation box body 35, and the semi-enclosed guardrail 31 is open on the side facing the end Ⅰ. The guardrail 31 can block the sand and gravel, preventing large pieces of sand and gravel from falling directly, and improving the safety of the operation.

[0079] In one embodiment, the upper outlet and the lower outlet of the separation box body 35 are staggered, so that the separation box body 35 can play a better buffering role when a gush occurs.

[0080] In one embodiment, see the appendix Figure 2 , a side box door is provided on the quarry box 2 to facilitate the outward transfer of sand and gravel. The quarry box 2 can be installed in a trolley or can also be in the form of a guide rail.

[0081] In one embodiment, both the blocking strip 32 and the roller 34 are made of steel.

[0082] Working principle:

[0083] When the shield machine passes through the formation, the broken sand and gravel and muck need to be transported out by the spiral muck conveyor 1 and fall onto the separation box body 35. The grid-like structure formed by the intersection of several rollers 34 and several blocking strips 32 acts as a filter screen to filter out the sand and gravel. At the same time, both ends of each roller 34 are detachably clamped to the edge of the upper opening of the separation box body 35, and both ends of each blocking strip 32 are detachably clamped to the upper opening edge; the number of rollers 34 and blocking strips 32 can be changed to adapt to the particle size of the sand and gravel in different working conditions;

[0084] At the same time, several rollers 34 can rotate under the action of the driving module, so that under the action of friction force, the sand and gravel on the rollers 34 are conveyed to the quarry box 2 at one end of the separation box body 35 and transported out;

[0085] A spiral shaft 33 is arranged in the separation box body 35, and the screened muck can fall onto the belt 4 through the transmission of the spiral shaft 33 from the lower outlet of the separation box body 35 and be transported out.

[0086] In summary, the soil and stone separation device for shield machine construction can automatically realize the separation and transfer process of large-diameter gravel and muck without affecting the tunneling of the shield machine.

[0087] Embodiment 2:

[0088] Based on Embodiment 1, this embodiment provides a soil and stone separation device for shield machine construction. Different from Embodiment 1, referring to the attached Figure 13 and 14 , the blocking strip 32 is wavy. The rollers 34 are arranged one by one in the upper openings (troughs) of the blocking strip 32. Roller I 321 is arranged at the wave crest of the blocking strip 32. The axial direction of Roller I 321 is parallel to the axial direction of the roller 34, and the highest point of Roller I 321 is not higher than the highest point of the roller 34; a mud scraping plate I 322 is arranged on the upper surface of the trough of the blocking strip 32.

[0089] In this embodiment, the blocking strip 32 is wavy, which can support the gravel and prevent irregular gravel from getting stuck between the two rollers 34 to form a blockage. In addition, Roller I 321 is arranged at the wave crest of the blocking strip 32, which is convenient for the roller 34 to convey the gravel to the quarry box 2.

[0090] Other technical features are the same as those in Embodiment 1 and will not be elaborated here.

[0091] Embodiment 3:

[0092] Based on Embodiment 1, this embodiment provides a soil and stone separation device for shield machine construction. Different from Embodiment 1, referring to the attached Figure 15 , each blocking strip 32 includes a cross beam 384, several support columns 382 and Roller II 381;

[0093] The two ends of the cross beam 384 are detachably clamped to the separation box body 35 respectively. A number of clamping slots 383 are arranged along the length direction on the top surface of the cross beam 384. The bottom end of each support column 382 is inserted into the clamping slot 383 of the cross beam 384 in a pluggable manner, and Roller II 381 is rotatably connected to the top end of the support column 382 one by one;

[0094] The rollers 34 are located one by one between two adjacent support columns 382. The axial direction of Roller II 381 is parallel to the axial direction of the roller 34, and the highest point of Roller II 381 is not higher than the highest point of the roller 34.

[0095] The mud scraping plate is Mud Scraping Plate II 385, and Mud Scraping Plate II 385 is arranged on the cross beam 384 and is located one by one between every two adjacent clamping slots 383.

[0096] In this embodiment, by setting the clamping slots 383 and the support columns 382, the number of support columns 382 can be adjusted according to the gap of the rollers 34.

[0097] Other technical features are the same as those in Embodiment 1 and will not be described herein again.

[0098] Embodiment 4:

[0099] Based on Embodiment 1, this embodiment provides a soil and stone separation device for shield machine construction. Refer to the appendix Figure 16 , more than one caulking shaft 39 is arranged in parallel between every two roller shafts 34. One end of each caulking shaft 39 is clamped with the strip-shaped opening of the first side plate through a toothed bearing, and the other end is clamped with the strip-shaped opening of the second side plate through a toothed bearing; and it can be limited by a limiting member (such as a limiting plug 5 or a limiting block 6). By arranging the caulking shaft 39, while being convenient for installation and disassembly, the opening of the grid-like structure can be reduced, thereby being applicable to sand and gravel with smaller particle sizes.

[0100] In summary, the above are only the preferred 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 soil-rock separation device for shield machine construction, used to separate sand and gravel from a spiral excavator and transport them separately; characterized in that: Including quarrying box, separation box and belt conveyor; The separation box is located below the spiral excavator, and includes a separation box body, a spiral shaft, a driving module, a plurality of rollers and a plurality of blocking bars; The separation box is provided with an upper opening and a lower opening; a plurality of rollers and a plurality of blocking bars are cross-arranged at the upper opening of the separation box to form a grid structure for screening and separating sand, gravel and slag; Several rollers are arranged in parallel, and both ends of each roller are detachably connected to the separation box, and each roller can rotate around its own axis; Both ends of each blocking strip are detachably connected to the separation box body; The belt conveyor is located below the lower opening of the separation box, and the spiral shaft is located in the separation box. The rotation of the spiral shaft can transport the slag in the separation box through the lower opening to the belt conveyor; The quarrying box is located at one end of the separation box body, and the driving module is used to drive the tops of a plurality of rollers to rotate toward the end where the quarrying box is located, so as to transfer sand and gravel into the quarrying box.

2. A soil-rock separation device for shield machine construction as claimed in claim 1, characterized in that: The plurality of rollers include a driving shaft and a plurality of driven shafts; the separation box includes two opposite side plates, namely side plate I and side plate II; The two ends of the driving shaft pass through the side plate I and the side plate II respectively, and the driving shaft is rotatably connected with the side plate I and the side plate II respectively through bearings; the two ends of the driving shaft pass through the corresponding side plates and are coaxially fixedly connected with the gear I respectively; The side plates I and II are provided with strip openings, one end of the driven shaft is clamped with the strip opening of the side plate I through the toothed bearing I, the other end of the driven shaft is provided with a gear II after passing through the strip opening of the side plate II, and the driven shaft and the strip opening are clamped with the toothed bearing II; corresponding limiters are provided in the strip openings to limit the outer rings of the toothed bearings I and II from rotating; The driving module includes a motor and a chain. The gear I at one end of the driving shaft of the side plate II is connected to the gear II through the chain, and the gear I at one end of the side plate I is connected to the motor.

3. A soil-rock separation device for shield machine construction as claimed in claim 2, characterized in that: One or more caulking shafts are arranged in parallel between every two rollers. One end of each caulking shaft is clamped with the strip opening of the side plate I through a toothed bearing, and the other end is clamped with the strip opening of the side plate II through a toothed bearing.

4. A soil-rock separation device for shield machine construction as claimed in claim 2, characterized in that: The blocking bar is wavy, and the rollers are arranged one by one in the upper opening of the blocking bar. Roller I is arranged at the wave crest of the blocking bar, and the axial direction of roller I is parallel to the axial direction of the roller, and the highest point of roller I is not higher than the highest point of the roller.

5. The soil-rock separation device for shield machine construction as claimed in claim 2, characterized in that: Each barrier bar includes a crossbeam, a number of support columns and rollers II; The two ends of the crossbeam are detachably connected to the separation box, and a plurality of bayonet holes are arranged on the top surface of the crossbeam along the length direction. The bottom end of each support column is pluggable and arranged in the bayonet hole of the crossbeam, and the rollers II are rotatably connected to the top ends of the support columns one by one; The rollers are located one by one between two adjacent support columns, the axial direction of roller II is parallel to the axial direction of the roller, and the highest point of roller II is not higher than the highest point of the roller.

6. A soil-rock separation device for shield machine construction as claimed in claim 4 or 5, characterized in that: A scraper plate is arranged at the upper and lower intersections of the blocking strip and the roller, and the top of the scraper plate contacts the roller.

7. A soil-rock separation device for shield machine construction as claimed in any one of claims 1 to 5, characterized in that: The outer circumferential surface of the roller is provided with anti-skid grooves.

8. A soil-rock separation device for shield machine construction as claimed in any one of claims 1 to 5, characterized in that: A semi-enclosed guardrail is arranged around the upper opening of the separation box body, one end of the upper opening starts from one end I of the separation box body, and the semi-enclosed guardrail is open toward one side of the end I.

9. A soil-rock separation device for shield machine construction as claimed in any one of claims 1 to 5, characterized in that: The upper outlet and the lower outlet of the separation box are arranged alternately.

10. A soil-rock separation device for shield machine construction as claimed in any one of claims 1 to 5, characterized in that: The quarrying box is provided with a side box door.

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