Dredging equipment for river regulation engineering

By introducing puncture gear drive section and crushing assembly into the river channel silt equipment, the problem of inefficiency in existing equipment when dealing with long-term deposition of silt is solved, and rapid dredging and efficient dredging of the river channel are achieved.

CN222758988UActive Publication Date: 2025-04-15JIANGSU LONGHUAN ENVIRONMENTAL TECH CO LTD
View PDF 0 Cites 2 Cited by

Patent Information

Application Number
CN202421645746.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-04-15
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

When existing river channel dredging equipment deals with long-term sedimentation sludge, the crushing time is long, resulting in low dredging efficiency and affecting the rapid dredging of the river channel.

Method used

A silt cleaning equipment for river channel remediation projects was designed, using puncture gear drive section and crushing assembly. The tooth of the puncture gear hit the silt to generate cracks, and the waterproof motor is used to drive the crushing assembly to rotate to improve the silt crushing efficiency.

Benefits of technology

Through the use of this equipment, the efficiency of sludge crushing is significantly improved, the crushing time is shortened, the dredging efficiency of the river channel is improved, and the rapid dredging of the river channel is achieved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222758988U_ABST
    Figure CN222758988U_ABST
Patent Text Reader

Abstract

The utility model relates to dredging equipment for river regulation engineering, the environment-friendly dredging equipment is arranged on a ship body, the bottom of the ship body is provided with a sludge puncturing part, and the sludge puncturing part comprises a first height adjusting piece, a second height adjusting piece and a third height adjusting piece, the puncture gear is rotationally connected to the telescopic end of the first height adjusting part, and teeth of the puncture gear knock the sludge to enable the sludge to generate cracks; the puncture gear driving part is used for driving a puncture gear to rotate; the puncture gear driving part comprises a transmission gear coaxially connected with the puncture gear; the rack is longitudinally arranged below the bottom of the hull and is meshed with the transmission gear; the reciprocating assembly is arranged on the ship body in the longitudinal direction, fixedly connected with the rack and used for moving up and down through the reciprocating assembly so that the rack can drive the transmission gear to rotate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of river channel regulation engineering, in particular to silt removal equipment for river channel regulation engineering. Background Art

[0002] The silt deposited in the river channel is caused by a variety of factors, among which the main influencing factors include the following aspects: (1) River water carries a large amount of silt, gravel and other particulate matter during its flow. These particulate matter are transported by the water flow and will settle in places where the flow rate slows down or stagnates, forming silt. (2) The geological conditions through which the river passes will also affect the formation of silt. For example, the weathering products of rocks, soil erosion, and river bank scouring will cause more particulate matter to enter the river channel; (3) Human activities are also one of the important reasons for the formation of silt. For example, a large amount of urban drainage, industrial wastewater and agricultural discharge may contain suspended solids, which will settle and form silt after entering the river channel.

[0003] The presence of silt may affect the habitat of aquatic organisms and the balance of the ecosystem, leading to a decline in water quality and a reduction in biodiversity. At the same time, the accumulation of silt will reduce the water capacity of the river, increase the risk of floods, and also affect the hydrological conditions and the navigation capacity of the river. Therefore, it is necessary to conduct regular river regulation.

[0004] The river channel regulation belongs to the category of river channel regulation engineering. During the river channel regulation, dredging equipment is needed. The dredging equipment includes a hull and a crushing assembly installed at the bottom of the hull. The crushing assembly will disturb and crush the silt deposited on the riverbed and crush the disturbed silt under the drive of the driving motor. The crushed silt is sucked into the storage box in the cabin through the suction equipment for storage, thus completing the dredging work of the riverbed section. However, since the silt has been deposited for a long time in some areas and is not easy to crush, using a driving motor alone to drive the crushing assembly to crush the silt will increase the crushing time, which will lead to low dredging efficiency, thus affecting the rapid dredging of the river channel. Utility Model Content

[0005] The purpose of the utility model is to overcome the above problems existing in the prior art and to provide a dredging device for river regulation engineering, which improves the dredging efficiency and can realize rapid dredging of the river.

[0006] The utility model provides a dredging device for river regulation engineering, the dredging device is arranged on a hull, a silt puncturing part is arranged at the bottom of the hull, and the silt puncturing part comprises:

[0007] A first height adjustment member is disposed longitudinally at the bottom of the hull;

[0008] A puncture gear is rotatably connected to the telescopic end of the first height adjustment member, and the teeth of the puncture gear strike the silt to cause cracks in the silt;

[0009] The puncture gear driving unit is used to drive the puncture gear to rotate. The puncture gear driving unit includes:

[0010] A transmission gear, coaxially connected to the puncture gear;

[0011] a rack, which is longitudinally arranged below the bottom of the hull and meshes with the transmission gear;

[0012] The reciprocating assembly is arranged on the hull in the longitudinal direction and is fixedly connected to the rack. The reciprocating assembly is used to move up and down through the reciprocating assembly so that the rack drives the transmission gear to rotate.

[0013] Preferably, the reciprocating assembly is a cam reciprocating member, a box body is provided on the hull, the cam reciprocating member is arranged in the box body, an abutment plate is provided in the box body in the horizontal direction, the bottom of the abutment plate is connected to a fixing member which passes through the hull and the box body in the longitudinal direction, the fixing member is fixedly connected to the rack, a spring is provided on the fixing member located in the box body, and the cam reciprocating member includes a cam, and the cam abuts against the abutment plate, so as to enable the fixing member to drive the rack to reciprocate up and down.

[0014] Preferably, the box body is a storage box, and a piston plate is also provided in the storage box along the horizontal direction, the piston plate is located above the abutment plate, and the cam can abut against the piston plate, and a sludge suction pipe and a discharge pipe are connected to the storage box above the piston plate, and the discharge pipe is provided with a filter screen, and a water tank is also provided on the hull, and the discharge pipe is connected to the water tank, and the water tank is also connected to a water pipe through a high-pressure water pump, and the outlet of the water pipe is located below the liquid surface, and a flat mouth is provided on the outlet of the water pipe, and a second height adjustment member is provided at the bottom of the hull, and a rotating shaft is rotatably connected to the telescopic end of the second height adjustment member, and a plurality of blades are provided on the circumference of the rotating shaft, and a puncture and breaking rod is connected to each blade, and water outlet from the flat mouth directly acts on each blade, thereby driving the plurality of puncture and breaking rods to rotate.

[0015] Preferably, the end of each piercing and crushing rod has a cone.

[0016] Preferably, a Venturi tube is connected to the water delivery pipe.

[0017] Preferably, a crushing assembly and a third height adjustment member are longitudinally provided on the upper edge of the bottom of the hull, a waterproof motor is provided at the bottom of the telescopic end of the third height adjustment member, the waterproof motor is connected to the crushing assembly, the crushing assembly includes a rotating shaft and a plurality of scrapers, the plurality of scrapers are inclined, and the high end of each scraper is connected to the peripheral wall of the rotating shaft close to the bottom end, and the blade of each scraper is inclined downward.

[0018] Preferably, a plurality of scrapers are evenly arranged around the circumference of the rotating shaft near the bottom end of the rotating shaft.

[0019] Preferably, each scraper forms an angle of 30-45° with the axial direction of the rotating shaft.

[0020] Preferably, the fixing member, the first height adjusting member, the third height adjusting member and the second height adjusting member are all electric telescopic rods.

[0021] Preferably, the cam reciprocating member also includes a cam, a drive motor and a rotating shaft. The drive motor and the rotating shaft are both arranged in a box body, and one end of the rotating shaft is rotatably connected to the inner wall of the box body, and the other end of the rotating shaft is connected to the drive motor. The cam sleeve is fixed on the rotating shaft.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model provides a dredging device for a river regulation project, which can solve the problems of long dredging time and low dredging efficiency of existing river dredging devices.

[0024] The utility model starts the puncture gear driving part, so that the reciprocating component in the puncture gear driving part moves up and down in the longitudinal direction, thereby driving the rack to move up and down, and when the reciprocating component moves downward in the longitudinal direction, it drives the rack to move downward, thereby driving the transmission gear to rotate, and the transmission gear rotates to make the puncture gear coaxially connected with the transmission gear rotate, and the teeth of the puncture gear knock the deposited silt, thereby loosening the silt and generating cracks, so that when the crushing component rotates under the drive of the waterproof motor, the crushing component is more likely to crush the deposited silt, and when the reciprocating component moves upward in the longitudinal direction, it drives the rack to move upward, thereby driving the transmission gear to rotate, and the transmission gear rotates to make the puncture gear coaxially connected with the transmission gear rotate in the opposite direction, and the teeth of the puncture gear knock the deposited silt, thereby loosening the silt and generating cracks, so that when the crushing component rotates in the opposite direction under the drive of the waterproof motor, the crushing component is more likely to crush the deposited silt, thereby improving the efficiency when the crushing component is used to crush the silt in the later stage, and reducing the crushing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a first cross-sectional view of a dredging device for river regulation engineering of the utility model;

[0026] Figure 2 It is a cross-sectional view of a dredging device for river regulation engineering of the utility model without the piercing gear installed;

[0027] Figure 3 This is the second cross-sectional view of a dredging device for river regulation engineering of the utility model

[0028] Figure 4 This is the third cross-sectional view of the dredging equipment for river regulation engineering of the utility model.

[0029] Description of reference numerals:

[0030] 1. Hull, 2. Box body, 3. First height adjustment member, 4. Piston plate, 5. Abutment plate, 6. Fixing member, 7. Spring, 8. Sludge suction pipe, 9. Sludge puncture part, 9-1. Transmission gear, 9-2. Rack, 9-3. Piercing gear, 10. Cam reciprocating member, 10-1. Cam, 10-2. Rotating shaft, 11. Third height adjustment member, 12. Waterproof motor, 13. Crushing assembly, 13-1. Rotating shaft, 13-2. Scraper, 14. Water tank, 15. High-pressure water pump, 16. Water pipe, 17. Second height adjustment member, 18. Piercing and crushing rod, 19. Venturi tube. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 , the specific implementation of the utility model is described in detail, but it should be understood that the protection scope of the utility model is not limited by the specific implementation. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] The inventors found that long-term sedimentation of silt leads to squeezing of the silt. When the driving motor alone is used to drive the crushing assembly to crush the silt, the crushing time will be increased, which will lead to low dredging efficiency and affect the rapid dredging of the river.

[0033] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a dredging device for river regulation engineering.

[0034] See attached Figure 1-4As shown, in the embodiment, a dredging equipment for river regulation engineering is provided, the dredging equipment is arranged on the hull 1, and a sludge puncturing part 9 is provided at the bottom of the hull 1, the sludge puncturing part 9 comprises: a first height adjustment member 3, a puncturing gear 9-3 and a puncturing gear driving part, wherein the first height adjustment member 3 is arranged at the bottom of the hull 1 along the longitudinal direction; the puncturing gear 9-3 is rotatably connected to the telescopic end of the first height adjustment member 3, and the teeth of the puncturing gear 9-3 strike the sludge to cause cracks in the sludge; the puncturing gear driving part is used to drive the puncturing gear 9-3 to rotate, and the puncturing gear driving part comprises: a transmission gear 9-1, a rack 9-2 and a reciprocating assembly, wherein the transmission gear 9-1 is coaxially connected with the puncturing gear 9-3; the rack 9-2 is arranged below the bottom of the hull 1 along the longitudinal direction and meshes with the transmission gear 9-1; the reciprocating assembly is arranged on the hull 1 along the longitudinal direction and fixedly connected to the rack 9-2, and is used to move up and down through the reciprocating assembly so that the rack 9-2 drives the transmission gear 9-1 to rotate. The reciprocating assembly may be an electric push rod, a guide rail, or other structures capable of achieving reciprocating motion.

[0035] Working principle:

[0036] By starting the puncture gear driving part, the reciprocating assembly in the puncture gear driving part moves up and down in the longitudinal direction, thereby driving the rack 9-2 to move up and down. When the reciprocating assembly moves downward in the longitudinal direction, it drives the rack 9-2 to move downward, thereby driving the transmission gear 9-1 to rotate. The rotation of the transmission gear 9-1 causes the puncture gear 9-3 coaxially connected to the transmission gear 9-1 to rotate, and the teeth of the puncture gear 9-3 knock the deposited silt, thereby loosening the silt and generating cracks. Therefore, when the crushing assembly 13 rotates under the drive of the waterproof motor 12, the crushing assembly 13 is more likely to break the deposited silt. The mud is crushed. When the reciprocating component moves upward in the longitudinal direction, it drives the rack 9-2 to move upward, and then drives the transmission gear 9-1 to rotate. The rotation of the transmission gear 9-1 causes the piercing gear 9-3 coaxially connected to the transmission gear 9-1 to rotate in the opposite direction, and the teeth of the piercing gear 9-3 knock the deposited silt, thereby loosening the silt and generating cracks. When the crushing component 13 rotates in the opposite direction under the drive of the waterproof motor 12, the crushing component 13 can more easily crush the deposited silt, thereby improving the efficiency when the crushing component is used to crush the silt in the later stage and reducing the crushing time.

[0037] Specifically, the specific structure of the reciprocating component is given, and the reciprocating component is a cam reciprocating member 10. A box body 2 is provided on the hull 1, and the cam reciprocating member 10 is arranged in the box body 2. An abutment plate 5 is provided in the box body 2 along the horizontal direction, and the bottom of the abutment plate 5 is connected to a fixing member 6 that penetrates the hull 1 and the box body 2 along the longitudinal direction. The fixing member 6 is fixedly connected to the rack 9-2, and a spring 7 is provided on the fixing member 6 located in the box body 2. The cam reciprocating member 10 includes a cam 10-1, and the cam 10-1 abuts against the abutment plate 5, which is used to make the fixing member 6 drive the rack 9-2 to reciprocate up and down. The fixing member 6 is a fixed plate or a fixed rod.

[0038] Working principle:

[0039] When the cam 10-1 acts on the abutment plate 5, the abutment plate 5 moves downward, and the spring 7 located between the abutment plate 5 and the box body 2 and sleeved on the fixing member 6 will be compressed when the abutment plate 5 moves downward. Here, the fixing member 6 passes through the opening on the box body 2, so that the fixing member 6 connected to the abutment plate 5 moves downward in the longitudinal direction, and the rack 9-2 is fixed on the fixing member 6 in the longitudinal direction, so the fixing member 6 moves downward in the longitudinal direction, so that the rack 9-2 also moves downward in the longitudinal direction, so that the downwardly moved rack 9-2 drives the transmission gear 9-1 meshing with it to rotate, and the transmission gear 9-1 is coaxially connected to the piercing gear 9-3, so the piercing gear 9-3 will also rotate, thereby knocking the deposited sludge, causing cracks in the sludge.

[0040] When the cam 10-1 does not act on the abutment plate 5, the abutment plate 5 will move upward under the driving force of the deformation force of the spring 7, so that the fixing member 6 connected to the abutment plate 5 will move upward in the longitudinal direction, and the rack 9-2 is fixed on the fixing member 6 in the longitudinal direction, so the fixing member 6 moves downward in the longitudinal direction, so that the rack 9-2 also moves upward in the longitudinal direction, so that the upward-moving rack 9-2 drives the transmission gear 9-1 meshing with it to rotate, and the transmission gear 9-1 is coaxially connected to the piercing gear 9-3, so the piercing gear 9-3 will also rotate, thereby knocking the deposited sludge, causing cracks in the sludge.

[0041] Specifically, the box body 2 is a storage box, and a piston plate 4 is also provided in the storage box along the horizontal direction. The piston plate 4 is located above the abutment plate 5, and the cam 10-1 can abut against the piston plate 4. A sludge suction pipe 8 and a discharge pipe are connected to the storage box above the piston plate 4, and the discharge pipe is provided with a filter. A water tank 14 is also provided on the hull 1, and the discharge pipe is connected to the water tank 14. The water tank 14 is also connected to a water pipe 16 through a high-pressure water pump 15. The outlet of the water pipe 16 is located below the liquid surface, and a flat mouth is provided on the outlet of the water pipe 16. A second height adjustment member 17 is provided at the bottom of the hull 1, and a rotating shaft is rotatably connected to the telescopic end of the second height adjustment member 17. A plurality of blades are provided on the circumference of the rotating shaft, and a puncture and breaking rod 18 is connected to each blade. The water outlet of the flat mouth directly acts on each blade, thereby driving the plurality of puncture and breaking rods 18 to rotate.

[0042] In order to further knock the deposited silt, a crushing part composed of multiple piercing and crushing rods 18 and a rotating shaft is installed at the bottom of the hull 1 to crack the silt. The driving force for the piercing and crushing rods 18 to rotate around the rotating shaft comes from the high-pressure water sprayed from the flat mouth, and the water sprayed from the flat mouth comes from the high-pressure water pump 15 that transports the water in the water tank 14 to the water pipe 16, and the water in the water tank 14 comes from the cam 10-1 squeezing the piston 4 upward to squeeze and filter the water sent into the box body 2 by the silt suction pipe 8. Not only does it save energy, but the multiple piercing and crushing rods 18 can rotate and knock the silt under the drive of the high-pressure water sprayed from the flat mouth, thereby improving the crushing efficiency.

[0043] Specifically, each piercing and crushing rod 18 has a conical body at its end, which further improves the crushing strength.

[0044] Specifically, the water pipe 16 is connected with a venturi tube 19 , which increases the water outlet speed of the water pipe 16 and facilitates the rapid rotation of the piercing and breaking rod 18 .

[0045] Specifically, the specific structure of the crushing assembly 13 is given. The crushing assembly 13 and the third height adjustment member 11 are longitudinally arranged on the bottom of the hull 1. A waterproof motor 12 is arranged at the bottom of the telescopic end of the third height adjustment member 11. The waterproof motor 12 is connected to the crushing assembly 13. The crushing assembly 13 includes a rotating shaft 13-1 and a plurality of scrapers 13-2. The plurality of scrapers 13-2 are inclined, and the high end of each scraper 13-2 is connected to the peripheral wall of the rotating shaft 13-1 close to the bottom end, and the blade of each scraper is inclined downward.

[0046] Specifically, a plurality of scrapers 13 - 2 are evenly arranged around the rotating shaft 13 - 1 near the bottom end of the rotating shaft 13 - 1 circumferentially, so as to improve the crushing efficiency.

[0047] Specifically, each scraper 13 - 2 forms an angle of 30-45° with the axial direction of the rotating shaft 13 - 1 . This angle can increase the contact between the scraper 13 - 2 and the sludge, thereby improving the crushing efficiency.

[0048] Specifically, the fixing member 6, the first height adjustment member 3, the third height adjustment member 11, and the second height adjustment member 17 are all electric telescopic rods, which facilitates adjusting the position of each component according to the depth of the silt.

[0049] Specifically, the specific structure of the cam reciprocating member 10 is given. The cam reciprocating member 10 also includes a cam 10-1, a driving motor and a rotating shaft 10-2. The driving motor and the rotating shaft 10-2 are both arranged in the box body 2, and one end of the rotating shaft 10-2 is rotatably connected to the inner wall of the box body 2, and the other end of the rotating shaft 10-2 is connected to the driving motor. The cam 10-1 is sleeved and fixed on the rotating shaft 10-2.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dredging device for river regulation engineering, the dredging device is arranged on a ship body (1), characterized in that: The bottom of the hull (1) is provided with a mud piercing portion (9), and the mud piercing portion (9) comprises: A first height adjustment member (3) is longitudinally arranged at the bottom of the hull (1); A puncture gear (9-3) is rotatably connected to the telescopic end of the first height adjustment member (3), and the teeth of the puncture gear (9-3) strike the mud to generate cracks in the mud; The puncture gear driving unit is used to drive the puncture gear (9-3) to rotate. The puncture gear driving unit includes: A transmission gear (9-1) is coaxially connected to the piercing gear (9-3); A rack (9-2) is longitudinally arranged below the bottom of the hull (1) and meshes with the transmission gear (9-1); The reciprocating assembly is arranged on the hull (1) in the longitudinal direction and is fixedly connected to the rack (9-2) and is used to move up and down through the reciprocating assembly so that the rack (9-2) drives the transmission gear (9-1) to rotate.

2. A dredging device for river regulation engineering according to claim 1, characterized in that: The reciprocating assembly is a cam reciprocating member (10). A box body (2) is provided on the hull (1). The cam reciprocating member (10) is arranged in the box body (2). An abutment plate (5) is provided in the box body (2) in the horizontal direction. The bottom of the abutment plate (5) is connected to a fixing member (6) which passes through the hull (1) and the box body (2) in the longitudinal direction. The fixing member (6) is fixedly connected to the rack (9-2). A spring (7) is provided on the fixing member (6) in the box body (2). The cam reciprocating member (10) comprises a cam (10-1). The cam (10-1) abuts against the abutment plate (5) so as to enable the fixing member (6) to drive the rack (9-2) to reciprocate up and down.

3. A dredging device for river regulation engineering according to claim 2, characterized in that: The box body (2) is a storage box, and a piston plate (4) is also arranged in the storage box in the horizontal direction. The piston plate (4) is located above the abutment plate (5), and the cam (10-1) can abut against the piston plate (4). The storage box above the piston plate (4) is connected to a sludge suction pipe (8) and a discharge pipe, and the discharge pipe is provided with a filter. The hull (1) is also provided with a water tank (14), and the discharge pipe is connected to the water tank (14). The water tank (14) is also supplied with a high-pressure water pump (15). The hull (1) is connected to a water pipe (16), the outlet of the water pipe (16) is located below the liquid surface, and a flat mouth is provided on the outlet of the water pipe (16). A second height adjustment member (17) is provided at the bottom of the hull (1). The telescopic end of the second height adjustment member (17) is rotatably connected to a rotating shaft. A plurality of blades are provided on the circumference of the rotating shaft, and each blade is connected to a piercing and crushing rod (18). Water discharged from the flat mouth directly acts on each blade, thereby driving the plurality of piercing and crushing rods (18) to rotate.

4. The dredging equipment for river regulation engineering according to claim 3, characterized in that: The end of each piercing and crushing rod (18) is provided with a cone.

5. The dredging equipment for river regulation engineering according to claim 3, characterized in that: The water delivery pipe (16) is connected to a venturi tube (19).

6. The dredging equipment for river regulation engineering according to claim 1, characterized in that: A crushing assembly (13) and a third height adjustment member (11) are longitudinally arranged on the bottom of the hull (1); a waterproof motor (12) is arranged at the bottom of the telescopic end of the third height adjustment member (11); the waterproof motor (12) is connected to the crushing assembly (13); the crushing assembly (13) comprises a rotating shaft (13-1) and a plurality of scrapers (13-2); the plurality of scrapers (13-2) are arranged obliquely, and the high end of each scraper (13-2) is connected to the peripheral wall of the rotating shaft (13-1) close to the bottom end, and the blade of each scraper is inclined downward.

7. The dredging equipment for river regulation engineering according to claim 6, characterized in that: A plurality of scrapers (13-2) are evenly arranged around the rotating shaft (13-1) near the bottom end of the rotating shaft (13-1) in the circumferential direction.

8. The dredging equipment for river regulation engineering according to claim 6, characterized in that: Each scraper (13-2) forms an angle of 30-45° with the axial direction of the rotating shaft (13-1).

9. The dredging equipment for river regulation engineering according to claim 5, characterized in that: The fixing member (6), the first height adjustment member (3), the third height adjustment member (11), and the second height adjustment member (17) are all electric telescopic rods.

10. The dredging equipment for river regulation engineering according to claim 2, characterized in that: The cam reciprocating member (10) further comprises a cam (10-1), a driving motor and a rotating shaft (10-2); the driving motor and the rotating shaft (10-2) are both arranged in a box body (2); one end of the rotating shaft (10-2) is rotatably connected to the inner wall of the box body (2); the other end of the rotating shaft (10-2) is connected to the driving motor; and the cam (10-1) is sleeved and fixed on the rotating shaft (10-2).

Citation Information

Cited By

  • Shield river-crossing tunnel ultra-shallow covering soil replacement concrete construction device and using method thereof

    CN121556461A

  • Shield river-crossing tunnel ultra-shallow overburden replacement concrete construction device and method of use thereof

    CN121556461B