Cutting device for super-thick underground diaphragm wall close to deep foundation pit engineering

Abstract

The invention discloses a cutting device for an ultra-thick underground diaphragm wall close to deep foundation pit engineering, and relates to the technical field of foundation pit engineering equipment.The cutting device comprises a support, a bottom plate is assembled at the top end of the support, a rope saw body is fixed to one side of the top end of the support, a cooling assembly is installed on the other side of the top end of the support, and a water tank is assembled on one side of the cooling assembly; the cooling assembly comprises a shell fixed to the top end of the support, and multiple sets of brush strips are fixed to the left inner wall and the right inner wall of the shell in a staggered mode. Through the arrangement of the cooling assembly, particles attached to the outer wall of a rope saw chain are cleaned by a brush before the rope saw chain makes contact with a flywheel, at the moment, water in a water tank flushes the rope saw chain under the action of two sets of pressurizing frames, on one hand, the purpose of dust falling can be achieved, and the situation that the rope saw chain is washed by surrounding workers and enters a human body is avoided; on the other hand, the rope saw chain can be cooled, and the service life of the rope saw chain can be further prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit engineering equipment, in particular to an ultra-thick underground continuous wall cutting device adjacent to a deep foundation pit engineering project. Background Art

[0002] In recent years, with the accelerated development of underground space and the increasing complexity of the construction environment, different support forms have been adopted for foundation pits based on the surrounding environment, structure conditions, foundation pit safety level, and economic considerations of the construction unit. In particular, underground continuous walls are used near subway protection areas and large buildings. During the construction of the continuous wall, a rope saw cutting device is required to cut the wall.

[0003] The inventor has found that the current wire saw machines have many defects during use. Due to the friction between the wire saw chain and the wall under the high-speed transmission of the flywheel, a large amount of heat energy will be generated. A cooler needs to be installed next to the wire saw machine, or cooling is not required. The cost of installing an additional cooler is large and it needs to be carried. When the wire saw machine is not cooled for a long time, the wire saw chain will continue to be high in temperature and cause damage to the flywheel. In addition, some tiny particles will remain on the wire saw chain. On the one hand, dust will be splashed, making the construction environment full of dust, which may easily affect the health of surrounding workers. On the other hand, it will contact with the flywheel and cause damage. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide an ultra-thick underground continuous wall cutting device adjacent to a deep foundation pit project to solve the technical problems raised in the above background.

[0005] To achieve the above object, the present invention provides the following technical solution: an ultra-thick underground continuous wall cutting device near a deep foundation pit project, comprising a bracket, a bottom plate is installed at the top of the bracket, a rope saw body is fixed to one side of the top of the bracket, a cooling component is installed at the other side of the top of the bracket, and a water tank is installed at one side of the cooling component;

[0006] The cooling component includes a shell fixed to the top of the bracket, and a plurality of groups of brush strips are staggeredly fixed on the left and right inner walls of the shell, a first constraint wheel rotatably arranged with the inner wall of the shell is provided at an upper position of one side of the brush strip, a second constraint wheel rotatably connected with the inner wall of the shell is provided at a lower position of the other side of the brush strip, a third constraint wheel rotatably arranged with the inner wall of the shell is provided at one side above the second constraint wheel, and a spray strip is installed at the top of the shell just above the brush strip;

[0007] The outer wall of the shell is provided with a driven disk fixed with the center position of the third constraining wheel, the driven disk is away from the end face of the shell and is fixed with a base rod at the edge position, the outer wall of the base rod is sleeved with a driven frame, two groups of pressure frames are fixed at the top of the bottom plate below the driven disk, pistons are sleeved in the two groups of pressure frames, a T-rod is fixed between the two groups of pistons, and the top of the T-rod is fixed to the bottom of the driven frame.

[0008] As a preferred technical solution of the ultra-thick underground continuous wall cutting device near deep foundation pit projects of the present invention, a branch pipe connected to two groups of pressure frames is provided on the side of the water tank close to the outer shell, and the tops of the two groups of pressure frames are provided with output pipes connected to the spray strips, and the output pipe and the branch pipe are equipped with a one-way valve at one end close to the pressure frame.

[0009] As a preferred technical solution of the ultra-thick underground continuous wall cutting device near deep foundation pit engineering of the present invention, a guide plate is movably installed at the top of the bracket in the shell, and the guide plate is arranged in a convex shape in the middle.

[0010] As a preferred technical solution of the ultra-thick underground continuous wall cutting device near deep foundation pit projects of the present invention, a storage frame is provided on one side of the water tank at the top of the bottom plate, and a guide wheel in contact with the upper and lower ends of the bracket is provided at the bottom end of the water tank, and guide rails are installed at the contact positions between the upper and lower ends of the bracket and the guide wheels.

[0011] As the preferred technical solution of the ultra-thick underground continuous wall cutting device near deep foundation pit engineering of the present invention, the bracket is composed of a first bracket and a second bracket, one end of the first bracket is provided with an extension strip extending into the second bracket, and the end face of the second bracket in contact with the extension strip begins to have a storage groove.

[0012] As a preferred technical solution of the ultra-thick underground continuous wall cutting device near deep foundation pit engineering of the present invention, the inner wall of the second bracket is equipped with two sets of electric push rods, and the output ends of the electric push rods are fixed to the inner wall of the first bracket.

[0013] As a preferred technical solution of the ultra-thick underground continuous wall cutting device near deep foundation pit engineering of the present invention, a roller is installed on the outer wall of the second bracket and away from the first bracket.

[0014] In summary, the present invention mainly has the following beneficial effects:

[0015] The present invention arranges a cooling component so that the particles attached to the outer wall of the rope saw chain are cleaned by a brush before the rope saw chain contacts the flywheel. At this time, the water in the water tank will flush the rope saw chain under the action of two sets of pressurized frames. On the one hand, it can achieve the purpose of dust reduction and prevent the dust from being washed into the body of the surrounding staff. On the other hand, it can cool the rope saw chain and further increase the service life of the rope saw chain.

[0016] The present invention uses a split bracket to control the movement of the first bracket in the bracket during use, thereby changing the distance between the rope saw body and the cutting wall, ensuring that the tension of the rope saw chain is in a moderate state, and can more efficiently cut the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first perspective structural diagram of the present invention;

[0018] Figure 2 This is a structural diagram of the second viewing angle of the present invention;

[0019] Figure 3 This is a structural diagram of the cooling component of the present invention from a first perspective;

[0020] Figure 4 A second perspective structural diagram of the cooling component of the present invention;

[0021] Figure 5 is a side cutaway view of a cooling assembly of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the support of the present invention;

[0023] Figure 7 This is a top view of a cross-sectional view of the bracket of the present invention.

[0024] In the figure: 100, bracket; 200, rope saw body; 300, cooling component;

[0025] 101, first bracket; 102, second bracket; 103, roller; 104, storage slot; 105, extension bar; 106, electric push rod;

[0026] 110, bottom plate; 120, storage frame; 130, water tank;

[0027] 310, outer shell; 320, guide plate; 330, first constraint wheel; 331, second constraint wheel; 332, third constraint wheel; 340, pressure frame; 341, output pipe; 342, piston; 343, T-rod; 350, brush strip; 360, driven disk; 361, driven frame; 362, base rod; 370, spray strip. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] The following describes an embodiment of the present invention based on its overall structure.

[0030] Ultra-thick underground continuous wall cutting device near deep foundation pit engineering, such as Figures 1 to 7 As shown, it includes a bracket 100, a bottom plate 110 is installed at the top of the bracket 100, a wire saw body 200 is fixed to one side of the top of the bracket 100, a cooling component 300 is installed on the other side of the top of the bracket 100, and a water tank 130 is installed on one side of the cooling component 300;

[0031] The cooling component 300 includes a shell 310 fixed to the top of the bracket 100, and a plurality of brush strips 350 are staggeredly fixed on the left and right inner walls of the shell 310. A first constraint wheel 330 is provided at an upper position of one side of the brush strip 350 to rotate with the inner wall of the shell 310, and a second constraint wheel 331 is provided at a lower position of the other side of the brush strip 350 to rotate with the inner wall of the shell 310. A third constraint wheel 332 is provided to rotate with the inner wall of the shell 310 above the second constraint wheel 331, and a spray strip 370 is installed at the top of the shell 310 just above the brush strip 350;

[0032] The outer wall of the shell 310 is provided with a driven disk 360 fixed with the center position of the third constraining wheel 332. The driven disk 360 is away from the end face of the shell 310 and is fixed with a base rod 362 at the edge position. The outer wall of the base rod 362 is sleeved with a driven frame 361. Below the driven disk 360, two groups of pressurizing frames 340 are fixed at the top of the bottom plate 110. Pistons 342 are sleeved in the two groups of pressurizing frames 340. A T-rod 343 is fixed between the two groups of pistons 342. The top of the T-rod 343 is fixed to the bottom of the driven frame 361.

[0033] The rope saw chain is wound around the upper outer wall of the third constraint wheel 332, and around the lower outer wall of the second constraint wheel 331, and then around the upper outer wall of the first constraint wheel 330, and finally around the wall to be cut and the flywheel on the rope saw body 200. When the rope saw body 200 is started, the rope saw chain can be driven to move and cut the wall;

[0034] When the rope saw chain is cutting, it will pass through the housing 310, and under the constraints of the first constraint wheel 330, the second constraint wheel 331 and the third constraint wheel 332, the rope saw chain will contact the multiple groups of brush strips 350 to clean the particles attached to the outer wall of the rope saw chain. At this time, the third constraint wheel 332 will drive the driven disk 360 of the outer wall to rotate synchronously, and the base rod 362 of the end surface will move in a circular trajectory, which will reciprocate and squeeze the driven frame 361 to move left and right, thereby driving the T rod 343 to move left and right synchronously. At this time, the piston 342 will squeeze the water in the pressurizing frame 340 into the output pipe 341, and finally the spray bar 370 will spray water to cool the rope saw chain, and the purpose of cleaning and dust reduction is to ensure that the temperature of the rope saw chain itself is low, so that the wall can be cut better.

[0035] When one group of pistons 342 discharges the water inside the pressurizing frame 340, the other group draws the water inside the water tank 130 into the pressurizing frame 340. In this way, the two groups of pressurizing frames can alternately cool the wire rope chain, thereby ensuring that the wire rope chain is fully cooled, thereby increasing the service life of the wire rope chain.

[0036] After the device has been cutting the wall for a period of time, the rope saw body 200 can be controlled to move along the bracket 100 to the side away from the wall. When it moves to the other end of the bracket 100, the electric push rod 106 is controlled to work, and its output end will push the first bracket 101 and the second bracket 102 to separate. At this time, the extension bar will extend from the driven storage groove 104, thereby controlling the distance between the rope saw body 200 and the wall again, so that the wall cutting operation can be completed efficiently.

[0037] Please refer to Figure 5 A branch pipe connected to two sets of pressurizing frames 340 is provided on one side of the water tank 130 close to the outer shell 310. The tops of the two sets of pressurizing frames 340 are both provided with output pipes 341 connected to the spray bar 370. The output pipe 341 and the branch pipe are both equipped with a one-way valve at one end close to the pressurizing frame 340.

[0038] The one-way valve is used to ensure that the water in the water tank 130 can only flow into the branch pipe and then into the pressure frame 340. Similarly, the water in the pressure frame 340 can only flow into the output pipe 341 and finally be discharged through the spray bar 370 to cool the wire saw chain.

[0039] Please refer to Figure 3 A guide plate 320 is movably mounted on the top of the bracket 100 in the housing 310, and the guide plate 320 is arranged in a convex shape in the middle.

[0040] The particles cleaned from the outer wall of the wire saw chain are collected and flowed to the edges on both sides in coordination with the water flow to avoid accumulation and contact with the wire saw chain again.

[0041] Please refer to the figure carefully. A storage frame 120 is provided on one side of the water tank 130 at the top of the bottom plate 110. The bottom of the water tank 130 is provided with guide wheels that contact the upper and lower ends of the bracket 100. Guide rails are installed at the contact positions between the upper and lower ends of the bracket 100 and the guide wheels.

[0042] The storage frame 120 can be used to store the wire saw chain, and the guide wheels and guide rails can be used to move the wire saw body 200 on the top of the bracket 100, thereby achieving efficient cutting effects. At the same time, the structure of moving on the top of the bracket 100 is implemented using existing technical means.

[0043] Please refer to Figure 1The bracket 100 is composed of a first bracket 101 and a second bracket 102. An extension bar 105 extending into the second bracket 102 is provided at one end of the first bracket 101. A storage groove 104 is provided at the end surface of the second bracket 102 that contacts the extension bar 105. Two sets of electric push rods 106 are installed on the inner wall of the second bracket 102, and the output ends of the electric push rods 106 are fixed to the inner wall of the first bracket 101.

[0044] Please refer to Figure 1 and Figure 2 A roller 103 is installed on the outer wall of the second bracket 102 and away from the first bracket 101.

[0045] The roller 103 can be used to tilt one end of the device, thereby facilitating the connection of an external traction device and making the movement of the device more time-saving and labor-saving.

[0046] When in use, the rope saw chain is wound around the upper outer wall of the third constraint wheel 332, and around the lower outer wall of the second constraint wheel 331, and then around the upper outer wall of the first constraint wheel 330, and finally around the wall to be cut and the flywheel on the rope saw body 200. When the rope saw body 200 is started, the rope saw chain can be driven to move and cut the wall;

[0047] When the rope saw chain is cutting, it will pass through the housing 310, and under the constraints of the first constraint wheel 330, the second constraint wheel 331 and the third constraint wheel 332, the rope saw chain will contact the multiple groups of brush strips 350 to clean the particles attached to the outer wall of the rope saw chain. At this time, the third constraint wheel 332 will drive the driven disk 360 of the outer wall to rotate synchronously, and the base rod 362 of the end surface will move in a circular trajectory, which will reciprocate and squeeze the driven frame 361 to move left and right, thereby driving the T rod 343 to move left and right synchronously. At this time, the piston 342 will squeeze the water in the pressurizing frame 340 into the output pipe 341, and finally the spray bar 370 will spray water to cool the rope saw chain, and the purpose of cleaning and dust reduction is to ensure that the temperature of the rope saw chain itself is low, so that the wall can be cut better.

[0048] When one group of pistons 342 discharges the water inside the pressurizing frame 340, the other group draws the water inside the water tank 130 into the pressurizing frame 340. In this way, the two groups of pressurizing frames can alternately cool the wire rope chain, thereby ensuring that the wire rope chain is fully cooled, thereby increasing the service life of the wire rope chain.

[0049] After the device cuts the wall for a period of time, the wire saw body 200 can be controlled to move along the bracket 100 to the side away from the wall. When it moves to the other end of the bracket 100, the electric push rod 106 is controlled to work, and its output end will push the first bracket 101 and the second bracket 102 to separate. At this time, the extension bar will extend from the driven storage slot 104, thereby controlling the distance between the wire saw body 200 and the wall again, so that the wall can be cut efficiently. (The undisclosed parts of the present invention are all implemented using existing technologies, such as: how the wire saw machine moves on the bracket, the power source of the wire saw machine, etc.)

[0050] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An ultra-thick underground continuous wall cutting device for a deep foundation pit project, comprising a bracket (100), characterized in that: The top of the bracket (100) is equipped with a bottom plate (110), a rope saw body (200) is fixed to one side of the top of the bracket (100), a cooling component (300) is installed on the other side of the top of the bracket (100), and a water tank (130) is equipped on one side of the cooling component (300); The cooling component (300) comprises a shell (310) fixed to the top of the bracket (100), a plurality of groups of brush strips (350) are staggeredly fixed on the left and right inner walls of the shell (310), a first constraint wheel (330) rotatably arranged with the inner wall of the shell (310) is provided at an upper position of one side of the brush strip (350), a second constraint wheel (331) rotatably connected with the inner wall of the shell (310) is provided at a lower position of the other side of the brush strip (350), a third constraint wheel (332) rotatably arranged with the inner wall of the shell (310) is provided at an upper side of the second constraint wheel (331), and a spray strip (370) is installed at the top of the shell (310) just above the brush strip (350); The outer wall of the outer shell (310) is provided with a driven disk (360) fixed at the center position of the third constraining wheel (332); the driven disk (360) is away from the end surface of the outer shell (310) and is fixed with a base rod (362) at the edge position; the outer wall of the base rod (362) is sleeved with a driven frame (361); below the driven disk (360), two groups of pressurizing frames (340) are fixed at the top of the bottom plate (110); pistons (342) are sleeved in the two groups of pressurizing frames (340); a T rod (343) is fixed between the two groups of pistons (342); the top of the T rod (343) is fixed to the bottom of the driven frame (361).

2. The ultra-thick underground continuous wall cutting device for a deep foundation pit project according to claim 1 is characterized by: A branch pipe connected to two groups of pressurizing frames (340) is provided on one side of the water tank (130) close to the outer shell (310), and output pipes (341) connected to the spray bar (370) are provided at the top of the two groups of pressurizing frames (340). One-way valves are installed in the ends of the output pipe (341) and the branch pipe close to the pressurizing frame (340).

3. The ultra-thick underground continuous wall cutting device for a deep foundation pit project according to claim 1 is characterized by: A guide plate (320) is movably mounted on the top of the bracket (100) in the housing (310), and the guide plate (320) is arranged in a convex shape in the middle.

4. The ultra-thick underground continuous wall cutting device for a deep foundation pit project according to claim 1 is characterized by: A storage frame (120) is provided on one side of the water tank (130) at the top of the bottom plate (110), a guide wheel in contact with the upper and lower ends of the bracket (100) is provided at the bottom end of the water tank (130), and guide rails are installed at the positions where the upper and lower ends of the bracket (100) contact the guide wheel.

5. The ultra-thick underground continuous wall cutting device for a deep foundation pit project according to claim 1 is characterized by: The bracket (100) is composed of a first bracket (101) and a second bracket (102); one end of the first bracket (101) is provided with an extension bar (105) extending into the second bracket (102); and the end surface of the second bracket (102) in contact with the extension bar (105) begins to have a receiving groove (104).

6. The ultra-thick underground continuous wall cutting device for a deep foundation pit project according to claim 5 is characterized by: The inner wall of the second bracket (102) is equipped with two sets of electric push rods (106), and the output ends of the electric push rods (106) are fixed to the inner wall of the first bracket (101).

7. The ultra-thick underground continuous wall cutting device for a deep foundation pit project according to claim 5 is characterized by: A roller (103) is installed on the outer wall of the second bracket (102) at a position away from the first bracket (101).

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