Mud scraping device for muck box in tunnel construction

By designing the scraper blades and adjustment components of the sludge scraping device, the problem of soil overflow from the slag bin was solved, achieving efficient and automated cleaning and improving the efficiency and safety of tunnel construction.

CN223761700UActive Publication Date: 2026-01-06SHANGHAI RAIL TRANSIT ENG CO LTD OF CHINA RAILWAY 17 BUREAU GRP
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Patent Information

Application Number
CN202423320620.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-06
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

During tunnel construction, the soil in the muck bins may overflow due to a mismatch between the conveyor belt speed and volume, affecting the construction environment and efficiency. Existing manual cleaning methods are inefficient and pose safety hazards.

Method used

Design a scraping device that includes a support frame and a scraping mechanism. The device uses an adjusting component to drive the scraper blade to move and level the soil in the slag bin. Sharp blocks and baffles reduce resistance. The scraper blade is adjustable in size to accommodate slag bins of different sizes. Combined with a cleaning and collection mechanism, the device automatically cleans the slag on the scraper blade.

Benefits of technology

It effectively reduces soil overflow from the slag bin, improves construction efficiency, reduces manual cleaning time, lowers safety hazards, expands the scope of application, and achieves automated cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a mud scraping device used on a residue soil box in tunnel construction, the mud scraping device used on the residue soil box in tunnel construction comprises a support frame and a mud scraping mechanism, the mud scraping mechanism comprises a mud scraping plate and an adjusting assembly, and the mud scraping plate is arranged on the support frame through the adjusting assembly. The method has the effect of improving the efficiency.
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Description

Technical Field

[0001] This application relates to the technical field of tunnel construction, and in particular to a sludge scraper for use on a muck box in tunnel construction. Background Technology

[0002] During tunnel construction, the excavated soil generated by tunnel boring machines (TBMs) often needs to be transported out of the construction site using conveyor belts and soil containers. With the improvement of construction mechanization, TBM belt conveyor has become the main method for the rapid removal of excavated soil during tunnel excavation.

[0003] However, during transportation, the soil on the conveyor belt often accumulates too high due to a mismatch between the speed of the conveyor belt and the volume of the slag bin, or even overflows the slag bin and falls into the tunnel, affecting the construction environment.

[0004] Currently, to reduce soil overflowing from the spoil bins, manual cleaning of the soil protruding beyond the bins is the primary method. However, this method is relatively inefficient. Utility Model Content

[0005] To improve efficiency, this application provides a sludge scraping device for use on muck boxes during tunnel construction.

[0006] This application provides a mud scraping device for scraping soil boxes during tunnel construction, which adopts the following technical solution:

[0007] A sludge scraping device for use on a muck box during tunnel construction includes a support frame and a sludge scraping mechanism. The sludge scraping mechanism includes a scraper blade and an adjustment component. The scraper blade is mounted on the support frame via the adjustment component.

[0008] By adopting the above technical solution, the adjustment component is activated, which drives the scraper to move, causing the scraper to change position. When the slag box containing slag moves under the scraper, the excess slag is leveled by the scraper. This reduces the occurrence of slag falling into the tunnel when the slag box is transported out of the tunnel, thus reducing the time spent cleaning up excessive slag and the impact on construction progress. It also reduces the safety hazards of manual cleaning. The leveling mechanism improves efficiency.

[0009] Optionally, the adjustment assembly includes a rotating shaft, an adjusting rod, and a double-headed cylinder. The rotating shaft is rotatably mounted on the support frame, and the adjusting rod is mounted on the rotating shaft. One piston rod of the double-headed cylinder is connected to the support frame, and the other end is connected to the adjusting rod. The adjusting rod is connected to the scraper blade.

[0010] By adopting the above technical solution, the double-headed cylinder can cause one or both of the two piston rods to move together; the piston rod of the double-headed cylinder drives the adjusting rod to move, and the adjusting rod will drive the scraper to move and change the position of the scraper.

[0011] Optionally, the scraper blade is provided with sharp blocks.

[0012] By adopting the above technical solution, the sharp blocks can easily scrape and level sticky soil, and can reduce resistance during the scraping process and improve the scraping efficiency.

[0013] Optionally, the scraper blade is provided with a baffle.

[0014] By adopting the above technical solution, the baffle can reduce the situation where the slag moves along the scraper towards the slag box when the scraper is leveling the slag.

[0015] Optionally, the scraper includes a main body, a stacking block, and a connecting assembly. The stacking block is mounted on the main body via the connecting assembly, and the adjusting assembly is connected to the main body.

[0016] By adopting the above technical solution, when the size of the slag bin changes, the stacked blocks are connected to the main body through the connecting components, and the size of the scraper blade is changed, so that the scraper blade can still better scrape the slag inside the slag bin; therefore, setting an adjustable scraper blade can improve the scope of application.

[0017] Optionally, the connecting component is disposed on the connecting block and the connecting bolt, the connecting block is disposed on the stacked block, and the main body is provided with a connecting groove for engaging with the connecting block; the connecting bolt passes through the main body and is threadedly connected to the connecting block.

[0018] By adopting the above technical solution, the connecting block is snapped into the connecting groove, and then the connecting bolt passes through the main body and is threaded into the connecting block located in the connecting groove, thereby fixing the stacked block to the main body; the set connecting component has a simple structure, is easy to operate, saves time and improves efficiency.

[0019] Optionally, the support frame is provided with a cleaning and collection mechanism, which includes a collection block, a first movable component, a second movable component, a rotating block, a scraper, and a rotating assembly. The collection block is slidably mounted on the support frame via the first movable component; a collection cavity is formed on the collection block; the movable block is slidably mounted on the collection block via the second movable component; the rotating block is mounted on the movable block via the rotating assembly; the scraper is mounted on the rotating block, and the scraper can abut against the mud scraper.

[0020] By adopting the above technical solution, after the scraper has finished cleaning the slag on the slag box, some slag will adhere to the scraper. The slag adhering to the scraper will affect the scraper's next leveling operation. Therefore, when the scraper is not leveling the slag, the first moving part is activated. The first moving part drives the collecting block to move, so that the collecting cavity on the collecting block moves below the scraper and the scraper comes into contact with the scraper. Then the second moving part is activated, which drives the moving block to move. The moving block will then drive the scraper to move, and the scraper that comes into contact with the scraper will clean the scraper.

[0021] Optionally, the collecting block has a discharge hole communicating with the collecting cavity, and the collecting block is provided with a sealing mechanism, which includes a sealing block and a fixing component. The sealing block can block the discharge hole, and the fixing component is disposed on the collecting block and connected to the sealing block.

[0022] By adopting the above technical solution, when collecting the slag on the scraper, the sealing block is connected to the collecting block through the fixing component and blocks the discharge hole; when a certain amount of slag is collected in the collecting chamber, the sealing block stops blocking the discharge hole, and the slag in the collecting chamber will move out of the collecting chamber through the discharge hole.

[0023] Optionally, the collecting block is provided with an adjustment mechanism, which includes a support block, an adjustment block, and an adjustment component. The support block is disposed on the collecting block, the adjustment block is disposed on the support block through the adjustment component, and the moving block is slidably disposed on the adjustment block through the second moving member.

[0024] By adopting the above technical solution, the adjustment component is activated, which drives the adjustment block to rotate. The adjustment block then drives the moving block to rotate, and the rotating block moves the scraper to change its position, thereby improving the applicability.

[0025] Optionally, the support frame is provided with a cleaning block, and the cleaning block has a cleaning groove for the scraper to pass through; the cleaning groove on the cleaning block is always located above the collection chamber.

[0026] By adopting the above technical solution, after the scraper has finished cleaning the mud scraper, the first moving part is activated, causing the collecting block to move away from the mud scraper and the scraper to pass through the cleaning groove on the cleaning block. The cleaning groove will clean the sludge adhering to the scraper, thereby ensuring the cleaning effect of the subsequent scraper on the mud scraper. Since the cleaning groove is always located above the collecting chamber, the sludge cleaned by the cleaning groove will fall into the collecting chamber.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The installed leveling mechanism can improve efficiency;

[0029] 2. Setting an adjustable-size scraper can improve the applicability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the sludge scraping device used on the spoil box during tunnel construction in an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the structure of the connection component in an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of the adjustment component in the embodiments of this application;

[0033] Figure 4 This is a schematic diagram of the sealing mechanism in an embodiment of this application;

[0034] Figure 5 for Figure 4 A magnified view of A in the middle.

[0035] Reference numerals: 1. Support frame; 11. Slide groove; 2. Sludge scraping mechanism; 21. Adjustment component; 211. Rotating shaft; 212. Adjusting rod; 213. Double-headed cylinder; 22. Sharp block; 23. Baffle; 3. Sludge scraper; 31. Main body; 311. Connecting groove; 32. Stacking block; 33. Connecting component; 331. Connecting block; 332. Connecting bolt; 4. Cleaning and collecting mechanism; 41. Collecting block; 411. Collecting chamber; 42. First moving part; 43. Moving block; 44. Second moving part; 45. Rotating block; 46. Scraper; 4 7. Rotating assembly; 471. Rotating motor; 472. Rotating shaft; 48. Slider; 5. Sealing mechanism; 51. Sealing block; 52. Fixing assembly; 521. Drive motor; 522. Drive shaft; 523. First fixing block; 524. Second fixing block; 525. Connecting rope; 526. Third fixing block; 6. Adjusting mechanism; 61. Support block; 62. Adjusting block; 63. Adjusting assembly; 631. Adjusting motor; 632. First gear; 633. Adjusting shaft; 634. Second gear; 7. Cleaning block; 71. Cleaning groove. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0037] This application discloses a mud scraping device for scraping mud from a muck box during tunnel construction.

[0038] refer to Figure 1 A mud scraping device for use on a muck box during tunnel construction includes a support frame 1, on which a mud scraping mechanism 2 and a cleaning and collection mechanism 4 are provided.

[0039] refer to Figure 1 and Figure 2 The sludge scraping mechanism 2 includes an adjustment component 21, which includes a rotating shaft 211 rotatably connected to the support frame 1, and two adjusting rods 212 rotatably connected to the rotating shaft 211. The support frame 1 is provided with two double-headed cylinders 213, which correspond one-to-one with the two adjusting rods 212. One piston rod of the double-headed cylinder 213 is hinged to the support frame 1 and the other piston rod is hinged to the adjusting rod 212.

[0040] When the double-headed cylinder 213 is started, the piston rod of the double-headed cylinder 213 drives the adjusting rod 212 to move, and the adjusting rod 212 will rotate relative to the rotating shaft 211.

[0041] refer to Figure 1 and Figure 2 Two adjusting rods 212 are connected to the same scraper blade 3. The scraper blade 3 includes a main body 31 connected to the two adjusting rods 212. The end of the adjusting rod 212 away from the rotating shaft 211 is fixedly connected to the main body 31. Both ends of the main body 31 are provided with connecting grooves 311, and both ends of the main body 31 are provided with stacking blocks 32. The stacking blocks 32 are provided with connecting components 33 connected to the main body 31. The connecting components 33 include connecting blocks 331 fixedly connected to the stacking blocks 32 and snapped into the connecting grooves 311. The main body 31 is provided with connecting bolts 332 that pass through the main body 31 and are threadedly connected to the connecting blocks 331.

[0042] A baffle 23 is provided at the end of the stacking block 32 away from the main body 31. A connecting component 33 is provided on the baffle 23 to connect with the stacking block 32. That is, a connecting groove 311 is provided at the end of the stacking block 32 away from the main body 31. A connecting block 331 that engages with the connecting groove 311 is fixedly connected to the baffle 23. A connecting bolt 332 that is threadedly connected to the connecting block 331 on the baffle 23 is provided on the stacking block 32.

[0043] The connecting block 331 on the stacking block 32 is snapped into the connecting groove 311 on the main body 31, and then the connecting bolt 332 is threaded through the main body 31 and connected to the connecting block 331 on the stacking block 32, so that the stacking block 32 is fixed on the main body 31; then the connecting block 331 on the baffle 23 is snapped into the connecting groove 311 on the stacking block 32, and then the connecting bolt 332 is threaded through the stacking block 32 and connected to the connecting block 331 on the baffle, so that the baffle 23 is fixed on the stacking block 32.

[0044] refer to Figure 1 and Figure 2 A sharp block 22 is fixedly connected to the main body 31, and the cross-section of the sharp block 22 gradually decreases in the direction away from the main body 31.

[0045] refer to Figure 1 and Figure 3 The main body 31 has a sliding groove 11. The cleaning and collection mechanism 4 includes a slider 48 that is slidably connected in the sliding groove 11. A collection block 41 is fixedly connected to the slider 48. A collection cavity 411 is provided on the collection block 41. The main body 31 is provided with a first moving part 42 connected to the collection block 41. In this example, it can be a cylinder or a motor screw, etc.

[0046] refer to Figure 3 An adjustment mechanism 6 is provided on the collection block 41. The adjustment mechanism 6 includes a support block 61 fixedly connected to the collection block 41, and an adjustment block 62 is provided on the support block 61. An adjustment assembly 63 is provided on the support block 61. The adjustment assembly 63 includes an adjustment shaft 633 rotatably connected to the support block 61, and the support block 61 and the adjustment shaft 633 are fixedly connected. An adjustment motor 631 is fixedly connected to the support block 61. A first gear 632 is keyed to the output shaft of the adjustment motor 631, and a second gear 634 meshing with the first gear 632 is keyed to the adjustment shaft 633.

[0047] refer to Figure 3 A movable block 43 is slidably mounted on the adjusting block 62; a second movable component 44 connected to the movable block 43 is mounted on the adjusting block 62. In this example, the second movable component 44 can be a cylinder or a motor lead screw, etc. A rotating assembly 47 is mounted on the movable block 43. The rotating assembly 47 includes a rotating motor 471 fixedly connected to the movable block 43. A rotating shaft 472 is connected to the output shaft of the rotating motor 471. A rotating block 45 is fixedly connected to the rotating shaft 472. A scraper 46 is fixedly connected to the rotating block 45. The scraper 3, the sharp block 22, and the baffle 23 can all abut against the scraper 46.

[0048] The first moving part 42 is activated, which drives the collecting block 41 to move closer to the scraper 3, so that the collecting block 41 is located below the main body 31; then the adjusting motor 631 is activated, the output shaft of the adjusting motor 631 drives the first gear 632 to rotate, the first gear 632 drives the second gear 634 to rotate, the second gear 634 drives the adjusting shaft 633 to rotate, the adjusting shaft 633 drives the adjusting block 62 to rotate, the adjusting block 62 drives the moving block 43 to rotate, the moving block 43 drives the rotating block 45 to move, and the rotating block 45 drives the scraper 46 to move, so that the scraper 46 abuts against the main body 31; Then, the second moving part 44 is activated, which drives the moving block 43 to slide on the adjusting block 62. The rotating block 45 on the moving block 43 drives the scraper 46 to move, so that the scraper 46 cleans the soil on the main body 31 and the stacking block 32. The cleaned soil enters the collection chamber 411 of the collection block 41. When the scraper 46 moves to the vicinity of the baffle 23, the rotating motor 471 is activated. The rotating motor 471 drives the rotating shaft 472 to rotate, the rotating shaft 472 drives the rotating block 45 to rotate, and the rotating block 45 drives the scraper 46 to rotate, so that the scraper 46 cleans the baffle 23.

[0049] refer to Figure 4 and Figure 5 The collecting block 41 has a discharge hole that communicates with the collecting chamber 411. The collecting block 41 is provided with a sealing mechanism 5, which includes a sealing block 51 that can block the discharge hole. The collecting block 41 is provided with a fixing component 52, including a drive motor 521 fixedly connected to the collecting block 41, a drive shaft 522 connected to the output shaft of the drive motor 521, and one side of the blocking block 51 connected to the drive shaft 522; a first fixing block 523 is fixedly connected to the end of the blocking block 51 away from the drive shaft 522, and a fixing groove is provided on the first fixing block 523; a second fixing block 524 is fixedly connected to the collecting block 41, and a through hole is provided on the second fixing block 524; a connecting rope 525 is connected to the collecting block 41, and a third fixing block 526 is connected to the end of the connecting rope 525 away from the collecting block 41; the end of the third fixing block 526 away from the connecting rope 525 passes through the through hole on the second fixing block 524 and engages with the fixing groove on the first fixing block 523.

[0050] When it is necessary to remove the soil from the collection chamber 411, first separate the third fixing block 526 from the fixing groove on the second fixing block 524; then start the drive motor 521. The output shaft of the drive motor 521 drives the drive shaft 522 to rotate, and the drive shaft 522 drives the sealing block 51 to rotate, so that the sealing block 51 no longer blocks the discharge hole. In this way, the soil in the collection chamber 411 will move out of the collection chamber 411 through the discharge hole.

[0051] refer to Figure 1A cleaning block 7 is fixedly connected to the support frame 1. The cleaning block 7 has a cleaning groove 71 for the scraper 3 to pass through. When the scraper 46 is not cleaning the main body 31, that is, when the collecting block 41 is in its initial position, the cleaning groove 71 of the cleaning block 7 is located directly above the collecting cavity 411; when the scraper 46 is cleaning the main body 31, the collecting cavity 411 of the collecting block 41 is still located directly below the cleaning groove 71. That is, no matter where the collecting block 41 moves on the collecting frame, the cleaning groove 71 is always located directly above the collecting cavity 411.

[0052] The implementation principle of a scraping device for a muck box in tunnel construction according to an embodiment of this application is as follows: the double-headed cylinder 213 is activated, causing the sharp block 22 to enter the muck box. Then, the sharp block 22, the main body 31, and the stacking block 32 will scrape the muck in the muck box to level it, reducing the situation where the muck is higher than the muck box when the muck is being transported.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mud scraping device for use on a spoil box in tunnel construction, characterised in that, Including support frame (1) and mud scraping mechanism (2), the mud scraping mechanism (2) includes mud scraping plate (3) and adjusting assembly (21), the mud scraping plate (3) is set on the support frame (1) by the adjusting assembly (21); The adjusting assembly (21) includes pivot shaft (211), adjusting rod (212) and double-end pneumatic cylinder (213), the pivot shaft (211) is rotatably arranged on the support frame (1), the adjusting rod (212) is arranged on the pivot shaft (211), one end of the double-end pneumatic cylinder (213) is connected with the support frame (1) and the other end is connected with the adjusting rod (212), the adjusting rod (212) is connected with the mud scraping plate (3). The sharp block (22) is arranged on the mud scraping plate (3). The baffle (23) is arranged on the mud scraping plate (3). The mud scraping plate (3) includes main body (31), superposition block (32) and connecting assembly (33), the superposition block (32) is arranged on the main body (31) by the connecting assembly (33), the adjusting assembly (21) is connected with the main body (31).

2. The mud scraping device for the muck box in tunnel construction according to claim 1, characterized in that, The connecting assembly (33) is arranged on connecting block (331) and connecting bolt (332), the connecting block (331) is arranged on the superposition block (32), the main body (31) is provided with connecting groove (311) matched with the connecting block (331), the connecting bolt (332) is threadedly connected with the connecting block (331) through the main body (31).

3. The mud scraping device for the muck box in tunnel construction according to claim 1, characterized in that, The cleaning and collecting mechanism (4) is arranged on the support frame (1), the cleaning and collecting mechanism (4) includes collecting block (41), first moving part (42), moving block (43), second moving part (44), rotating block (45), scraper (46) and rotating assembly (47), the collecting block (41) is slidably arranged on the support frame (1) by the first moving part (42), the collecting cavity (411) is formed in the collecting block (41), the moving block (43) is slidably arranged on the collecting block (41) by the second moving part (44), the rotating block (45) is arranged on the moving block (43) by the rotating assembly (47), the scraper (46) is arranged on the rotating block (45), and the scraper (46) can abut against the mud scraping plate (3).

4. The mud scraping device for the muck box in tunnel construction according to claim 3, characterized in that, The collecting block (41) is provided with a discharging hole communicated with the collecting cavity (411), the collecting block (41) is provided with a sealing mechanism (5), the sealing mechanism (5) includes a sealing block (51) and a fixing assembly (52), the sealing block (51) can seal the discharging hole, the fixing assembly (52) is arranged on the collecting block (41) and connected with the sealing block (51).

5. The mud scraping device for the muck box in tunnel construction according to claim 3, characterized in that, The collecting block (41) is provided with an adjusting mechanism (6), the adjusting mechanism (6) comprises a supporting block (61), an adjusting block (62) and an adjusting assembly (63), the supporting block (61) is arranged on the collecting block (41), the adjusting block (62) is arranged on the supporting block (61) through the adjusting assembly (63), and the moving block (43) is slidably arranged on the adjusting block (62) through the second moving piece (44).

6. The mud scraping device for the muck box in tunnel construction according to claim 3, characterized in that, The supporting frame (1) is provided with a cleaning block (7), and the cleaning block (7) is provided with a cleaning groove (71) for the mud scraping plate (3) to pass through; the cleaning groove (71) on the cleaning block (7) is located above the collecting cavity (411) at all times.