CN114179229B - Diamond rope saw chain cutting process - Google Patents
Diamond rope saw chain cutting process Download PDFInfo
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- CN114179229B CN114179229B CN202111521535.XA CN202111521535A CN114179229B CN 114179229 B CN114179229 B CN 114179229B CN 202111521535 A CN202111521535 A CN 202111521535A CN 114179229 B CN114179229 B CN 114179229B
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- wire saw
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- 238000005520 cutting process Methods 0.000 title claims abstract description 74
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 61
- 239000010432 diamond Substances 0.000 title claims abstract description 61
- 239000004575 stone Substances 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 230000003068 static effect Effects 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 235000013312 flour Nutrition 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000005457 optimization Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/29—Filters with filtering elements which move during the filtering operation the movement of the filter elements being a combination of movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
- B28D1/068—Components, e.g. guiding means, vibrations damping means, frames, driving means, suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The application relates to the technical field of engineering construction, and particularly discloses a diamond rope saw chain cutting process, which comprises the steps of (1) positioning and paying off to form rectangular top blocks of a to-be-cut earth and stone; (2) Drilling holes on the top of the square by adopting a water drilling static force drilling mode to form vertical holes on the top angles of the earth and stone to be cut; (3) The concrete cutting machine vertically cuts the earth and stone, and the depth of the formed cutting seam is 0.5-0.6m; (4) The diamond wire saw is installed, and a base of a main machine of the diamond wire saw is fixed on the outer side of the short side A of the square block at the top of the earth and stone to be cut; (5) Using a diamond rope saw to horizontally cut the bottom of the earth and stone, and finally separating the stone from the bedrock; (6) lifting the stone blocks and lifting the cut stone blocks; and (3) repeating the step (3), the step (4) and the step (5) until the foundation pit reaches the designed depth. The cutting depth is controlled to be 0.5-0.6m each time, and the disturbance on the lower interval structure is reduced by thin layer layering cutting.
Description
Technical Field
The application relates to the technical field of engineering construction, in particular to a diamond wire saw chain cutting process.
Background
In the construction and reconstruction engineering of the existing high-speed rail station, the ground structures such as the original platform, the track, the pedestrian overpass and the like are all required to be removed and reconstructed. Before the upper structure is newly built, foundation pit excavation is needed first, and at this time, the interval tunnel is changed from a deep tunnel to a shallow tunnel. In the existing engineering construction, the technology of cutting the earth and stone is mainly to adopt a rock cutting machine to vertically cut the earth and stone, and then to horizontally pick and chisel after cutting is completed, so that vibration can be caused, and the existing buildings, equipment and the like are affected. Under the conditions that the stone is high in strength, and business railways or subways are arranged at the bottom or beside the stone, or the stone is close to buildings and structures, mechanical chiseling, blasting and other processes cannot be adopted. The method is characterized in that deep burying is changed into shallow burying for the bottom tunnel structure after soil guard excavation, and an excavation scheme is formulated on the basis of ensuring that the bottom tunnel structure is free from deformation.
Disclosure of Invention
The application aims to provide a diamond wire saw chain cutting process for reducing disturbance to a lower section structure in a construction process.
The diamond wire saw chain cutting process comprises the following steps:
(1) Positioning and paying off, paying off typesetting the foundation pit to be cut and excavated by using a total station to form rectangular square top blocks of the earth and stone to be cut;
(2) Drilling by adopting a water drill static force drilling mode at the top point position of the square block at the top of the earth and stone to be cut, so as to form vertical holes at the top angle of the earth and stone to be cut;
(3) Cutting the concrete stone vertically by using a concrete cutting machine, and cutting along a cutting line to form a cutting seam with the depth of 0.5-0.6m;
(4) The diamond wire saw is installed, a base of the diamond wire saw main machine is fixed on the outer side of an A short side of a square block at the top of the earth and stone to be cut, reversing pulleys are installed in vertical holes at the top angles of the earth and stone to be cut at the two ends of the A short side, the tangent planes at the bottommost ends of the reversing pulleys are aligned with the bottoms of cutting parts, the central axis of the reversing pulleys is parallel to the A short side, a flywheel of the diamond wire saw main machine is positioned above one reversing pulley, and the central axis of the flywheel is perpendicular to the A short side; the tensioning device arranged on the outer side of the short side A of the square block at the top of the earth and stone to be cut is arranged above the other reversing pulley, the tensioning device comprises a tensioning wheel with the central axis parallel to the central axis of the flywheel, one end of the diamond rope saw is arranged in a cutting seam of the other short side opposite to the short side A and two long sides, the other end of the diamond rope saw is sequentially wound on the reversing pulley, the flywheel and the tensioning wheel, and the diamond rope saw is tensioned through the tensioning wheel;
(5) The diamond wire saw is used for horizontally cutting the earth and stone, the bottom of the earth and stone is horizontally cut by the diamond wire saw, water is flushed into a cutting seam in the cutting process to bring out scraps and flour, and finally, the stone is separated from the bedrock;
(6) Lifting the stone blocks, and lifting the cut stone blocks; and (3) repeating the step (3), the step (4) and the step (5) until the foundation pit reaches the designed depth.
The friendship effect of this technical scheme lies in:
(1) The stone static cutting construction is adopted, the diamond rope saw is adopted to carry out horizontal separation after cutting, the disturbance to the structure of the lower section is negligible, the separated rock is neat in specification, the outward transportation is convenient, and the construction potential safety hazard is small; the cutting process has no dust and noise.
(2) In the process of horizontally cutting the earth and stone by the diamond wire saw, the depth of each cutting seam is controlled to be 0.5-0.6m, namely, the depth of each cutting seam is controlled to be 0.5-0.6m, and the cutting effect and the mechanical vibration in the cutting process are more favorably controlled through thin layer layered cutting, so that the disturbance on the lower interval structure is reduced.
(3) The cutting mechanism of the whole cutting process is arranged on the outer side of the short side A, so that when each layer of cutting is carried out from top to bottom in the layered cutting process, only the reversing pulleys in the vertical holes are required to be reinstalled, other structures are not required to be moved, and the cutting efficiency is improved.
The first preferred scheme is as follows: as a further optimization of the basic scheme, the tensioning device comprises a sliding rail, tensioning parts and impact parts, wherein the tensioning parts and the impact parts are arranged at two ends of the sliding rail, the tensioning parts comprise a cylinder body fixed at one end of the sliding rail, a piston which is in sliding connection with the inner side wall of the cylinder body and seals the cylinder body is arranged in the cylinder body, the bottom of the piston and the bottom of the cylinder body are pressure cavities, and pressure release valves are arranged on the side walls of the pressure cavities; the impact part comprises a cylinder body which is connected to the other end of the sliding rail in a sliding way, a rotating push block is arranged in the cylinder body, the push block is sealed with the side wall of the cylinder body, the push block and the cylinder body form a cylindrical cam structure, one end of the cylinder body, which is away from the tensioning part, is provided with a bottom surface for sealing the cylinder body, a pump cavity is formed between the bottom surface of the cylinder body and the push block, the side wall of the pump cavity is provided with a water inlet one-way valve and a water outlet one-way valve, one end of the push block, which is towards the pump cavity, is rotationally connected with a square connecting shaft, and the connecting shaft penetrates through the bottom surface and is rotationally connected with the tensioning wheel; the water inlet one-way valve is connected to the bottom of the vertical hole of the earth and stone square vertex angle to be cut through a pipeline, and the water outlet one-way valve is connected to the pressure cavity through a pipeline.
In the first preferred scheme, the tensioning device comprises tensioning part and impact part, namely in the cutting process, the pushing block in the impact part can rotate continuously, and then the pushing block can reciprocate in the cylinder, so that the pushing block can drive the tensioning wheel to vibrate periodically, the vibration drives the diamond wire saw to vibrate, on one hand, the contact pressure of the diamond wire saw rope and the earth and stone can be changed periodically, and on the other hand, the cutting device is beneficial to separating out scraps and powder adhered to the contact position of the diamond wire saw rope and the earth and stone, and therefore the cutting efficiency is improved. Secondly, the pushing block periodically vibrates to enable the water in the vertical holes of the vertical angles of the earth and stone to be cut to be continuously sucked into the pump cavity, and water is continuously supplemented into the cylinder body of the tensioning part, so that the tensioning wheel is continuously pushed forward, and tensioning of the diamond sawing rope is achieved; meanwhile, the pressure relief valve arranged on the side wall of the pressure cavity can timely drain redundant water when the pressure in the cylinder body is overlarge, so that the diamond saw rope can maintain stable pressure.
And a second preferred scheme is as follows: as a further optimization of the first preferred scheme, a filtering device is arranged on a pipeline connected with the water inlet one-way valve. The filter device can filter out scraps and powder in water, so that the blockage of the containing cavity and the pipeline is avoided.
And a preferred scheme III: as a further optimization of the second preferred scheme, the filtering device comprises a filtering cylinder fixed on a main machine of the diamond rope saw, a rotatable filtering net is arranged in the middle of the filtering cylinder, the filtering net comprises a ring body on the periphery and a net body fixed on the ring body, the side wall of the ring body, which is contacted with the filtering cylinder, is provided with a spiral convex rib and a spiral groove which are mutually matched, two ends of the filtering net are respectively connected with springs, and the ends of the springs are respectively connected with the top and the bottom of the filtering cylinder to form a vibrator; the upper part and the lower part of the filter barrel are respectively provided with a water inlet and a water outlet which are positioned on the upper side and the lower side of the filter screen.
In the third preferred scheme, as the diamond rope saw main machine has certain mechanical vibration during working, the filter device is arranged on the diamond rope saw main machine, and the filter screen forms a vibrator, so that the filter screen vibrates under the influence of the mechanical vibration; meanwhile, the side wall of the ring body, which is in contact with the filter cylinder, is provided with the spiral convex edges and the spiral grooves which are matched with each other, so that the filter screen also has a rotating action in the vibration process, and therefore, the filter screen can be prevented from being blocked by scraps and grinding powder.
The preferable scheme is as follows: as a further optimization of the third preferred aspect, the upper surface of the filter screen body of the filter screen is provided with a spoiler arranged along the radial direction of the filter screen body. When the filter screen rotates, the spoiler has the effect of disturbing the water body, so that the water body is pushed to form rotational flow, and scraps and powder are outwards dispersed under the effect of centrifugal force, so that the smooth middle part of the filter screen is facilitated, and the normal circulation of the water body is ensured.
The preferable scheme is as follows: as a further optimization of the fourth preferred scheme, one end, facing the tensioning part, of the cylinder body of the impact part is fixed with a driving motor, and an output shaft of the driving motor is in spline connection with the pushing block. The push block rotates and simultaneously has horizontal reciprocating motion, and the spline connection can enable periodic distance change between the push block and the motor.
The preferable scheme is as follows: as a further optimization of the fourth preferred aspect, in the step (1), the width of the top square of the earth and stone to be cut is 0.5-0.6m, and the length of the top square of the earth and stone to be cut is 0.8-1.4m; is beneficial to obtaining better cutting efficiency.
Drawings
FIG. 1 is a schematic view of a vertical hole and cutting slit in a earth and stone side;
FIG. 2 is a top view of a diamond wire saw installation;
FIG. 3 is a side view of a diamond wire saw installation;
fig. 4 is a partial cross-sectional view of a diamond wire saw mounting structure.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the vertical hole 11 of the earth and stone square vertex angle to be cut, the cutting seam 12, the diamond rope saw host 20, the flywheel 21, the transition pulley 22, the reversing pulley 31, the tensioning part 41, the cylinder 411, the piston 412, the pressure relief valve 413, the impact part 42, the cylinder 421, the push block 422, the connecting shaft 423, the water inlet one-way valve 424, the water outlet one-way valve 425, the tensioning wheel 43, the driving motor 44, the sliding rail 45, the guide pulley 46, the diamond rope saw 50, the filter cartridge 61, the ring 62, the net 63, the spring 64, the sealing cover 65, the spoiler 66 and the like.
The diamond wire saw chain cutting process comprises the following steps:
(1) Positioning and paying off, paying off typesetting the foundation pit to be cut and excavated by using a total station to form rectangular square top blocks of the earth and stone to be cut; the width of the top square block of the earth and stone to be cut is 0.5-0.6m, and the length of the top square block of the earth and stone to be cut is 0.8-1.4m.
(2) And drilling by adopting a hydraulic static drilling mode at the vertex position of the square block at the top of the earth and stone to be cut, and forming vertical holes 11 at the vertex angle of the earth and stone to be cut as shown in fig. 1.
(3) The concrete cutting machine is used for vertically cutting the earth and stone, the concrete cutting machine is used for cutting along the cutting line, and the depth of the formed cutting seam 12 is 0.5-0.6m.
(4) The diamond wire saw 50 is installed, as shown in fig. 2, the base of the main machine 20 of the diamond wire saw 50 is fixed on the outer side of the A short side of the square top block of the earth and stone to be cut, reversing pulleys 31 are installed in vertical holes 11 of the vertical angles of the earth and stone to be cut at two ends of the A short side, the tangent plane at the bottommost end of each reversing pulley 31 is aligned with the bottom of a cutting part, the central axis of each reversing pulley 31 is parallel to the A short side, the flywheel 21 of the main machine 20 of the diamond wire saw 50 is positioned above one reversing pulley 31, and the central axis of the flywheel 21 is perpendicular to the A short side. Above the other diverting pulley 31 there is also mounted a tensioning device placed outside the a short side of the earth-rock square top block to be cut.
As shown in fig. 2, the tensioning device comprises a sliding rail 45, tensioning parts 41 and impact parts 42 arranged at two ends of the sliding rail 45, the tensioning parts 41 comprise a cylinder 411 fixed at one end of the sliding rail 45, a piston 412 which is slidably connected with the inner side wall of the cylinder 411 and seals the cylinder 411 is arranged in the cylinder 411, a pressure cavity is formed between the piston 412 and the bottom of the cylinder 411, and a pressure release valve 413 is arranged on the side wall of the pressure cavity. As shown in fig. 3 and 4, the impact portion 42 includes a cylinder 421 slidably connected to the other end of the sliding rail 45, a rotating push block 422 is disposed in the cylinder 421, the push block 422 is sealed with a side wall of the cylinder 421, and the push block 422 and the cylinder 421 form a cylindrical cam structure, so that the push block 422 can also reciprocate and translate when rotating relative to the cylinder 421; one end of the cylinder 421, which is away from the tensioning part 41, is provided with a bottom surface for sealing the cylinder 421, a pump cavity is formed between the bottom surface of the cylinder 421 and the push block 422, a water inlet one-way valve 424 and a water outlet one-way valve are arranged on the side wall of the pump cavity, one end of the push block 422, which faces the pump cavity, is rotationally connected with a square connecting shaft 423 (in the embodiment, the connecting shaft 423 and the push block 422 realize the axial limit of the connecting shaft 423 and the push block 422 through a C-shaped clamping ring), and the connecting shaft 423 penetrates through the bottom surface and is rotationally connected with the tensioning wheel 43; a driving motor 44 is fixed to one end of the cylinder 421 of the impact portion 42 facing the tension portion 41, and an output shaft of the driving motor 44 is spline-connected with the push block 422. The water inlet check valve 424 is connected to the bottom of the vertical hole 11 of the earth and stone square top corner to be cut through a pipe, and the water outlet check valve 425 is connected to the pressure chamber through a pipe. In this embodiment, the sliding rail 45 adopts two parallel double rails, the cross section of the sliding rail 45 is T-shaped, and the cylinder 421 is slidably connected to the sliding rail 45 through the base.
As shown in fig. 2 and 3, one end of the diamond wire saw 50 is placed in the cutting slit 12 of the other short side and the two long sides opposite to the short side a, the other end of the diamond wire saw 50 is wound on the reversing pulley 31, the flywheel 21 and the tensioning wheel 43 in sequence, and the diamond wire saw 50 is tensioned by the tensioning wheel 43; in addition, in order to increase the wrap angle of the diamond wire saw 50 on the flywheel 21 of the main machine 20 of the diamond wire saw 50, a transition pulley 22 is also arranged below the flywheel 21. Secondly, in order to avoid that the tensioning device pushes the diamond wire saw 50 outwards to unfold, the diamond wire saw 50 cuts the side wall of the vertical hole 11 of the earth and stone side top angle to be cut, so that the cutting efficiency is affected, a guide pulley 46 is further arranged above the vertical hole 11 of the earth and stone side top angle to be cut corresponding to the tensioning device, and the rotating shaft of the guide pulley 46 is fixedly arranged on the cylinder 411 of the tensioning part 41.
The pipe connected with the water inlet check valve 424 is provided with a filtering device as shown in fig. 2 and 4. The filtering device comprises a filter cylinder 61 fixed on the main machine 20 of the diamond rope saw 50, a rotatable filter screen is arranged in the middle of the filter cylinder 61, the filter screen comprises a ring body 62 at the periphery and a net body 63 fixed on the ring body 62, the side wall of the ring body 62, which is in contact with the filter cylinder 61, is provided with spiral ribs and spiral grooves which are mutually matched, two ends of the filter screen are respectively connected with springs 64, and the ends of the springs 64 are respectively connected with the top and the bottom of the filter cylinder 61 to form a vibrator by the filter screen; the upper part and the lower part of the filter barrel are respectively provided with a water inlet and a water outlet which are positioned on the upper side and the lower side of the filter screen. The upper surface of the screen body 63 of the filter screen is provided with a spoiler 66 arranged along the radial direction of the screen body, and the spoiler 66 is cross-shaped; in order to facilitate cleaning of the interior of the filter cartridge 61, the top of the filter cartridge 61 is provided with a removable seal cap 65.
(5) The diamond wire saw 50 is used for horizontally cutting the earth and stone, the diamond wire saw 50 is used for horizontally cutting the bottom of the earth and stone, water is flushed into the cutting seam 12 in the cutting process to bring out scraps and flour, and finally the stone is separated from the bedrock. In order to fully utilize the water, a pressure relief valve 413 is arranged on the side wall of the pressure cavity and extends into the cutting seam 12 through a pipeline to perform supplementary flushing, so that the water is recycled.
(6) Lifting the stone blocks, and lifting the cut stone blocks; and (3) repeating the step (3), the step (4) and the step (5) until the foundation pit reaches the designed depth.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
1. The diamond wire saw chain cutting process is characterized by comprising the following steps of:
(1) Positioning and paying off, paying off typesetting the foundation pit to be cut and excavated by using a total station to form rectangular square top blocks of the earth and stone to be cut;
(2) Drilling by adopting a water drill static force drilling mode at the top point position of the square block at the top of the earth and stone to be cut, so as to form vertical holes at the top angle of the earth and stone to be cut;
(3) Cutting the concrete stone vertically by using a concrete cutting machine, and cutting along a cutting line to form a cutting seam with the depth of 0.5-0.6m;
(4) The diamond wire saw is installed, a base of the diamond wire saw main machine is fixed on the outer side of an A short side of a square block at the top of the earth and stone to be cut, reversing pulleys are installed in vertical holes at the top angles of the earth and stone to be cut at the two ends of the A short side, the tangent planes at the bottommost ends of the reversing pulleys are aligned with the bottoms of cutting parts, the central axis of the reversing pulleys is parallel to the A short side, a flywheel of the diamond wire saw main machine is positioned above one reversing pulley, and the central axis of the flywheel is perpendicular to the A short side; the tensioning device is arranged on the outer side of the short side A of the square block at the top of the earth and stone to be cut, the tensioning device comprises a tensioning wheel with a central axis parallel to the central axis of the flywheel, one end of a diamond rope saw is arranged in a cutting seam of the other short side opposite to the short side A and two long sides, the other end of the diamond rope saw is sequentially wound on the reversing pulley, the flywheel and the tensioning wheel, the diamond rope saw is tensioned through the tensioning wheel, the tensioning device further comprises a sliding rail, tensioning parts and impact parts arranged at the two ends of the sliding rail, the tensioning parts comprise a cylinder body fixed at one end of the sliding rail, a piston which is in sliding connection with the inner side wall of the cylinder body and seals the cylinder body is arranged in the cylinder body, a pressure cavity is formed between the piston and the bottom of the cylinder body, and a pressure relief valve is arranged on the side wall of the pressure cavity; the impact part comprises a cylinder body which is connected to the other end of the sliding rail in a sliding way, a rotating push block is arranged in the cylinder body, the push block is sealed with the side wall of the cylinder body, the push block and the cylinder body form a cylindrical cam structure, one end of the cylinder body, which is away from the tensioning part, is provided with a bottom surface for sealing the cylinder body, a pump cavity is formed between the bottom surface of the cylinder body and the push block, the side wall of the pump cavity is provided with a water inlet one-way valve and a water outlet one-way valve, one end of the push block, which is towards the pump cavity, is rotationally connected with a square connecting shaft, and the connecting shaft penetrates through the bottom surface and is rotationally connected with the tensioning wheel; the water inlet one-way valve is connected to the bottom of the vertical hole of the apex angle of the earth and stone to be cut through a pipeline, and the water outlet one-way valve is connected to the pressure cavity through a pipeline;
(5) The diamond wire saw is used for horizontally cutting the earth and stone, the bottom of the earth and stone is horizontally cut by the diamond wire saw, water is flushed into a cutting seam in the cutting process to bring out scraps and flour, and finally, the stone is separated from the bedrock;
(6) Lifting the stone blocks, and lifting the cut stone blocks; and (3) repeating the step (3), the step (4) and the step (5) until the foundation pit reaches the designed depth.
2. The diamond wire saw chain cutting process according to claim 1, wherein: and a filtering device is arranged on a pipeline connected with the water inlet one-way valve.
3. The diamond wire saw chain cutting process according to claim 2, wherein: the filter device comprises a filter cylinder fixed on a diamond rope saw main machine, a rotatable filter screen is arranged in the middle of the filter cylinder, the filter screen comprises a ring body at the periphery and a net body fixed on the ring body, the side wall of the ring body, which is in contact with the filter cylinder, is provided with a spiral convex rib and a spiral groove which are mutually matched, two ends of the filter screen are respectively connected with springs, and the ends of the springs are respectively connected with the top and the bottom of the filter cylinder to form a vibrator by the filter screen; the upper part and the lower part of the filter barrel are respectively provided with a water inlet and a water outlet which are positioned on the upper side and the lower side of the filter screen.
4. A diamond wire saw chain cutting process according to claim 3, wherein: the upper surface of the filter screen body of the filter screen is provided with a spoiler which is arranged along the radial direction of the filter screen body.
5. The diamond wire saw chain cutting process according to claim 4, wherein: a driving motor is fixed at one end of the cylinder body of the impact part, which faces the tensioning part, and an output shaft of the driving motor is in spline connection with the pushing block.
6. The diamond wire saw chain cutting process according to claim 1, wherein: in the step (1), the width of the top square block of the earth and stone to be cut is 0.5-0.6m, and the length of the top square block of the earth and stone to be cut is 0.8-1.4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111521535.XA CN114179229B (en) | 2021-12-13 | 2021-12-13 | Diamond rope saw chain cutting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111521535.XA CN114179229B (en) | 2021-12-13 | 2021-12-13 | Diamond rope saw chain cutting process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114179229A CN114179229A (en) | 2022-03-15 |
| CN114179229B true CN114179229B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111521535.XA Active CN114179229B (en) | 2021-12-13 | 2021-12-13 | Diamond rope saw chain cutting process |
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| Country | Link |
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| CN (1) | CN114179229B (en) |
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| CN101468409A (en) * | 2007-12-24 | 2009-07-01 | 中国海洋石油总公司 | Tension device of underwater diamond rope saw |
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