Rock breaking and pipe jacking device for mixed geology
By using conical drilling and telescopic mechanisms to drill hard stones in the mixed geological rock-breaking top pipe device, the serious wear of the crushing knife is solved, the service life of the crushing knife is extended, and the project progress is improved.
Patent Information
- Application Number
- CN202420902195.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-04-26
AI Technical Summary
In the construction of mixed geological rock-breaking pipe top, when the hard stones are broken directly through the crushing knife of the pipe top cutter, it is easy to cause severe wear of the crushing knife, which requires frequent replacement, resulting in slowing down the project progress.
A mixed geological rock-breaking top pipe device is designed, using a conical drill bit and a telescopic mechanism. The conical drill bit is used to drill holes on hard stones, destroy the overall strength of the stone surface, reduce wear on the crushing knife, and screen the stones through the fixing frame to prevent the stones from blocking the transportation mechanism.
It extends the service life of the crushing knife, reduces the replacement frequency, increases the project progress, and reduces construction costs.
Smart Images
Figure CN222894261U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rock-breaking pipe jacking, in particular to a mixed geological rock-breaking pipe jacking device. Background Art
[0002] Pipe jacking construction is a trenchless construction method, a pipeline burial construction technology with no excavation or less excavation. Pipe jacking construction is to use the jacking force generated by the jacking equipment in the working pit to overcome the friction between the pipeline and the surrounding soil, push the pipeline into the soil according to the designed slope, and transport the soil away.
[0003] When the pipe jacking mechanism is performing mixed geological operations, it will encounter hard soil and rocks. At this time, when the hard rocks are directly crushed by the crushing knives on the pipe jacking cutter disc, it is easy to cause great wear to the crushing knives. If the wear is large, the crushing knives need to be replaced, which is time-consuming and slows down the progress of the project. Summary of the invention
[0004] In order to solve the above problems, the utility model proposes a mixed geological rock breaking jacking device to more accurately solve the problem that when the above-mentioned crushing knife breaks hard stones, it is easy to cause great wear to the crushing knife. If the wear is large, the crushing knife needs to be replaced, which is time-consuming and slows down the progress of the project.
[0005] The utility model is realized by the following technical solutions:
[0006] The utility model proposes a mixed geological rock breaking pipe jacking device, comprising a cutter disc body, one end of the cutter disc body is fixedly connected to a mounting frame, a crushing knife is installed on the mounting frame, a plurality of penetrating mounting slots are provided on the mounting frame, all of the mounting slots are arranged in a circular array, the side walls of each of the mounting slots are fixedly connected to a fixing frame, a certain distance exists between two fixing frames, a round rod is fixedly connected to the axis of the mounting frame, the outer side of the round rod is fixedly connected to a fixing seat, a sliding plate is slidably connected to the fixing seat, a plurality of fixing plates are fixedly connected to the sliding plate, a driving motor is installed on the fixing plate, the main shaft of the driving motor is fixedly connected to a conical drill bit, and the conical drill bit can pass through the distance between the two fixing frames.
[0007] Furthermore, the fixed plates are each provided with a square through groove, the sliding seat is slidably connected in the square through groove, the lower surface of the sliding seat is fixedly connected to the protective shell, the driving motor is fixed on the lower surface of the sliding seat, the driving motor is located in the protective shell, and each of the fixed plates is provided with a telescopic mechanism.
[0008] Furthermore, the telescopic mechanism includes a mounting shell, a square groove is provided on the sliding plate, the mounting shell is located in the square groove, the mounting shell is fixedly connected to the sliding plate, an electric push rod is fixedly connected inside the mounting shell, the telescopic rod of the electric push rod passes through the mounting shell, and the telescopic rod of the electric push rod is fixedly connected to the sliding seat.
[0009] Furthermore, the length of the conical drill bit is greater than the thickness of the mounting frame, and the maximum diameter of the conical drill bit is smaller than the distance between two fixing frames in the same mounting groove.
[0010] Furthermore, the fixing plate is located below the mounting groove, and the square through groove on the fixing plate is located below the gap between the two fixing frames.
[0011] Furthermore, the outer side of the fixing seat is fixedly connected to a circular plate, one side of the circular plate is fixedly connected to two hydraulic cylinders, telescopic rods of the hydraulic cylinders penetrate the circular plate, and the telescopic rods of the hydraulic cylinders are fixedly connected to the sliding plate.
[0012] Furthermore, one side of the circular plate is fixedly connected to a circular shell, and the circular shell covers two hydraulic cylinders.
[0013] Furthermore, there is a certain distance between the fixing frame and the crushing knife on the mounting frame.
[0014] Beneficial effects of the utility model:
[0015] The utility model proposes a mixed geological rock breaking pipe jacking device, which excavates the soil layer by setting a conical drill bit and a crushing knife on a mounting frame. When encountering hard stones, the cutter disc stops, and a sliding plate drives the conical drill bit to extend from between the fixing frames to drill holes in the hard stones, thereby destroying the overall strength of the stone surface. When the conical drill bit is retracted, the cutter disc body continues to rotate, and the crushing knife is used to crush the stone, thereby reducing the wear of the crushing knife by the hard stone and extending the service life of the crushing knife.
[0016] A mixed geological rock breaking pipe jacking device is provided, which screens stones by setting a fixed frame. Only stones smaller than the gap of the fixed frame can pass through the cutter disc for transportation. When the stone is larger than the gap, the conical drill bit needs to be extended to cut and destroy the stone to break the stone and prevent the stone from blocking the transportation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 is a schematic diagram of the cross-sectional structure of the mounting frame;
[0019] Figure 3 It is a structural schematic diagram of the telescopic mechanism;
[0020] Figure 4 Schematic diagram of the structure of a conical drill bit.
[0021] The reference numerals are as follows:
[0022] 1. Cutter body; 2. Mounting frame; 3. Crushing knife; 4. Fixed frame; 5. Round rod; 6. Fixed seat; 7. Sliding plate; 8. Fixed plate; 9. Telescopic mechanism; 91. Mounting shell; 11. Conical drill bit; 12. Sliding seat; 13. Protective shell; 92. Electric push rod; 14. Round plate; 15. Hydraulic cylinder; 16. Round shell. DETAILED DESCRIPTION
[0023] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.
[0024] Please refer to Figure 1-Figure 4 A mixed geological rock breaking pipe jacking device comprises a cutter head body 1, one end of the cutter head body 1 is fixedly connected to a mounting frame 2, a crushing knife 3 is installed on the mounting frame 2, a plurality of penetrating mounting grooves are arranged on the mounting frame 2, and all the mounting grooves are arranged in a circular array, and the side wall of each mounting groove is fixedly connected to a fixing frame 4, and there is a certain distance between the two fixing frames 4, and a round rod 5 is fixedly connected to the axis of the mounting frame 2, and the outer side of the round rod 5 is fixedly connected to a fixing seat 6, a sliding plate 7 is slidably connected to the fixing seat 6, and a plurality of fixing plates 8 are fixedly connected to the sliding plate 7, and a driving motor is installed on the fixing plate 8, and the main shaft of the driving motor is fixedly connected to a conical drill bit 11, and the conical drill bit 11 can pass through The distance between the two fixing frames 4 is that when in use, the soil layer is excavated by the crushing knife 3 on the mounting frame 2. When encountering hard stones, the cutter head stops rotating. At this time, the sliding plate 7 slides from the inner side of the mounting frame 2 close to the mounting frame 2, so that the conical drill bit 11 extends out from between the fixing frames 4. At this time, the driving motor drives the conical drill bit 11 to rotate, and the conical drill bit 11 drills holes in the hard stones to destroy the overall strength of the stone surface. Then the sliding plate 7 pulls the conical drill bit 11 to retract and return to the inside of the cutter head body 1. At this time, the cutter head body 1 continues to rotate, and the crushing knife 3 is used to crush the stones, thereby reducing the wear of the crushing knife 3 by the hard stones and extending the service life of the crushing knife 3.
[0025] In this embodiment, a square through groove is provided on the fixed plate 8, and a sliding seat 12 is slidably connected in the square through groove. The lower surface of the sliding seat 12 is fixedly connected to a protective shell 13, and the driving motor is fixed on the lower surface of the sliding seat 12. The driving motor is located in the protective shell 13. A telescopic mechanism 9 is provided on each fixed plate 8, and the driving motor is located in the protective shell 13. The protective shell 13 protects the driving motor to prevent stones from hitting the driving motor and causing damage when the driving motor is in use.
[0026] In this embodiment, the telescopic mechanism 9 includes a mounting shell 91, a square groove is provided on the sliding plate 7, the mounting shell 91 is located in the square groove, the mounting shell 91 is fixedly connected to the sliding plate 7, an electric push rod 92 is fixedly connected inside the mounting shell 91, the telescopic rod of the electric push rod 92 passes through the mounting shell 91, the telescopic rod of the electric push rod 92 is fixedly connected to the sliding seat 12, the electric push rod 92 can push the sliding seat 12 to slide, so that the conical drill bit 11 moves on the fixed plate 8, and by adjusting the position of the conical drill bit 11, the conical drill bit 11 can drill holes in stones of different sizes. It only needs to rotate the cutter head body 1 to adjust the position of the conical drill bit 11, and then move the sliding seat 12 to adjust the position, so that the use range of the conical drill bit 11 is increased.
[0027] In this embodiment, the length of the conical drill bit 11 is greater than the thickness of the mounting frame 2, and the maximum diameter of the conical drill bit 11 is smaller than the distance between the two fixing frames 4 in the same mounting groove. The conical drill bit 11 can extend out of the mounting frame 2 between the two fixing frames 4 in the mounting groove to destroy the stones. At the same time, the length is sufficient and the extension length can be adjusted as needed to control the depth of the drilling hole.
[0028] In this embodiment, the fixing plate 8 is located below the mounting groove, and the square through groove on the fixing plate 8 is located below the gap between the two fixing frames 4. The conical drill bit 11 can only move and extend between the two fixing frames 4 and will not touch the fixing frames 4, thereby preventing the conical drill bit 11 from causing damage to the fixing frames 4.
[0029] In this embodiment, the outer side of the fixed seat 6 is fixedly connected to a circular plate 14, and one side of the circular plate 14 is fixedly connected to two hydraulic cylinders 15. The telescopic rod of the hydraulic cylinder 15 passes through the circular plate 14, and the telescopic rod of the hydraulic cylinder 15 is fixedly connected to the sliding plate 7. The sliding plate 7 is pushed to slide by the two hydraulic cylinders 15, and the sliding plate 7 drives the conical drill bit 11 to extend to destroy the stone. The hydraulic cylinder 15 can provide sufficient thrust. At the same time, the telescopic rod of the hydraulic cylinder 15 is fixed to the sliding plate 7, which can prevent the sliding plate 7 from rotating on the fixed seat 6 and prevent the conical drill bit 11 from being misplaced.
[0030] In this embodiment, one side of the circular plate 14 is fixedly connected to a circular shell 16 , which covers the two hydraulic cylinders 15 , thereby isolating the hydraulic cylinders 15 from soil and rocks and protecting the hydraulic cylinders 15 .
[0031] In this embodiment, there is a certain distance between the fixed frame 4 and the crushing knife 3 on the mounting frame 2. The fixed frame 4 plays a certain screening role. Only stones smaller than the gap of the fixed frame 4 can pass through the cutter disc for transportation. When the stone is larger than the gap, the stone is blocked on one side of the fixed frame 4. At this time, the conical drill bit 11 extends out to cut and destroy the stone, so that the stone is broken and conveniently passed through the fixed frame 4 for transportation.
[0032] Working principle: When in use, the soil layer is excavated through the crushing knife 3 on the mounting frame 2. When encountering hard stones, the cutter head stops rotating, and the two hydraulic cylinders 15 push the sliding plate 7 to slide, so that the conical drill bit 11 extends out from between the fixed frames 4. The driving motor drives the conical drill bit 11 to rotate, and the conical drill bit 11 drills holes in the hard stones to destroy the overall strength of the stone surface. Then the sliding plate 7 pulls the conical drill bit 11 to retract and return to the inside of the cutter head body 1. The cutter head body 1 continues to rotate, and the stones are crushed by the crushing knife 3. The fixed frame 4 plays a certain screening role. Only stones smaller than the gap of the fixed frame 4 can pass through the cutter head for transportation. When the stone is larger than the gap, the stone is blocked on one side of the fixed frame 4. At this time, the conical drill bit 11 extends out to cut and destroy the stone.
[0033] Of course, the present utility model may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present utility model.
Claims
1. A mixed geological rock breaking pipe jacking device, characterized in that: The invention comprises a cutter disc body, one end of which is fixedly connected to a mounting frame, a crushing knife is mounted on the mounting frame, a plurality of penetrating mounting slots are arranged on the mounting frame, all of the mounting slots are arranged in a circular array, a side wall of each mounting slot is fixedly connected to a fixing frame, a certain distance exists between two fixing frames, a round rod is fixedly connected to the axis of the mounting frame, the outer side of the round rod is fixedly connected to a fixing seat, a sliding plate is slidably connected to the fixing seat, a plurality of fixing plates are fixedly connected to the sliding plate, a driving motor is mounted on the fixing plate, a main shaft of the driving motor is fixedly connected to a conical drill bit, and the conical drill bit can pass through the distance between the two fixing frames.
2. A mixed geological rock breaking pipe jacking device according to claim 1, characterized in that: The fixed plates are each provided with a square through groove, in which a sliding seat is slidably connected, the lower surface of the sliding seat is fixedly connected to a protective shell, the driving motor is fixed on the lower surface of the sliding seat, the driving motor is located in the protective shell, and each of the fixed plates is provided with a telescopic mechanism.
3. A mixed geological rock breaking pipe jacking device according to claim 2, characterized in that: The telescopic mechanism includes a mounting shell, a square groove is provided on the sliding plate, the mounting shell is located in the square groove, the mounting shell is fixedly connected to the sliding plate, an electric push rod is fixedly connected inside the mounting shell, the telescopic rod of the electric push rod passes through the mounting shell, and the telescopic rod of the electric push rod is fixedly connected to the sliding seat.
4. A mixed geological rock breaking pipe jacking device according to claim 1, characterized in that: The length of the conical drill bit is greater than the thickness of the mounting frame, and the maximum diameter of the conical drill bit is less than the distance between two fixing frames in the same mounting groove.
5. The mixed geological rock breaking pipe jacking device according to claim 1, characterized in that: The fixing plate is located below the mounting groove, and the square through groove on the fixing plate is located below the gap between the two fixing frames.
6. The mixed geological rock breaking pipe jacking device according to claim 1, characterized in that: The outer side of the fixing seat is fixedly connected to a circular plate, one side of the circular plate is fixedly connected to two hydraulic cylinders, telescopic rods of the hydraulic cylinders penetrate the circular plate, and the telescopic rods of the hydraulic cylinders are fixedly connected to the sliding plate.
7. A mixed geological rock breaking pipe jacking device according to claim 6, characterized in that: One side of the circular plate is fixedly connected to a circular shell, and the circular shell covers two hydraulic cylinders.
8. The mixed geological rock breaking pipe jacking device according to claim 1, characterized in that: There is a certain distance between the fixing frame and the crushing knife on the mounting frame.