A device for quickly cutting the pile head of a CFG pile cap using soil mold method

Abstract

The present invention belongs to the technical field of CFG pile caps constructed by the soil mold method for high-speed railways, and specifically relates to a device for quickly cutting the pile head of a CFG pile cap by the soil mold method. The present invention includes a frame, a main machine, a diamond cutting rope and a steering mechanism; the main machine includes a motor and a driving main wheel connected to the end of the rotating shaft of the motor, the motor drives the driving main wheel to rotate, one end of the diamond cutting rope is wound around the driving main wheel, and the other end is wound around the CFG pile body after passing through the steering mechanism; the main machine is slidably connected to the frame, and while the motor of the main machine drives the diamond cutting rope to cut the CFG pile body, the main machine moves forward along the frame to adjust the tension of the diamond cutting rope in real time. The present invention solves the problem that the pile head cannot be cut off by mechanical equipment due to the narrow working space, reduces the consumption of energy and labor, and greatly improves the cutting quality and production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of CFG pile caps constructed by soil moulding method for high-speed railways, and in particular relates to a device for quickly cutting the pile head of a CFG pile cap constructed by soil moulding method. Background Art

[0002] With the rapid development of high-speed railways, as the requirements for construction standardization are gradually improved, CFG piles are widely used for foundation reinforcement, and CFG pile head cutting has become an important process for quality control during construction. The traditional CFG construction process is: CFG pile drilling and pouring → clearing the soil between piles → cutting off the CFG pile head → installing the pile cap template → pouring the pile cap → removing the template → next pile cap construction. The traditional process excavator is easy to disturb the pile head and cause shallow broken piles; the excavation and backfilling of soil between piles increase the cost; it is difficult to ensure the quality of the backfilling of soil between piles, which will reduce the bearing capacity of the composite foundation.

[0003] In recent years, high-speed railways have implemented the soil formwork method for the construction of CFG pile caps. The main process is: CFG pile construction is completed → digging the soil formwork → cutting off the CFG pile head → pile body inspection → pouring the pile cap. Compared with the traditional method, the soil formwork method for cutting off the pile head requires a smaller working surface and does not require disturbance between piles. At the same time, the concrete is in close contact with the soil between piles, which can more effectively guarantee the bearing capacity of the CFG pile composite foundation.

[0004] During the construction of CFG soil formwork, after the pile cap is excavated, the pile head is in a narrow foundation pit, the distance between the pile cap edge and the pile is only 15cm, the pile cap is funnel-shaped, the construction space is narrow and the free surface is small, and the current traditional processes include circular saw cutting and manual chiseling. The circular saw cutting equipment cannot be operated due to limited working space, the manual chiseling method has a long operation cycle, and requires multiple chiseling at multiple points, low operation efficiency, large disturbance of Duzhuang head, repeated chiseling of pile heads by steel chisels and electric picks causes oblique cracks in the pile body and shallow broken piles, the quality is not easy to guarantee, the cost of pile connection processing is high, and cutting off the pile head becomes a construction problem of soil formwork pile cap. Therefore, technicians in this field are committed to developing a device suitable for quickly cutting the pile head of soil formwork CFG pile caps, which has the advantages of no vibration, no noise, no dust pollution during construction, short construction cycle, fast speed, and high efficiency. Summary of the invention

[0005] The present invention aims to solve the problems of low efficiency of traditional manual cutting, small working space and inability of tools to cut off pile heads, high construction production costs, large construction period risks and quality risks, and provides a device for quickly cutting pile heads of CFG pile caps using a soil mold method.

[0006] The present invention is implemented by the following technical scheme: a device for quickly cutting the pile head of a CFG pile cap using a soil mold method, comprising a frame, a main machine, a diamond cutting rope and a steering mechanism;

[0007] The main machine includes a motor and a driving main wheel connected to the end of the rotating shaft of the motor, the motor drives the driving main wheel to rotate, one end of the diamond cutting rope is wound around the driving main wheel, and the other end is wound around the CFG pile body after passing through the steering mechanism;

[0008] The main machine is slidably connected to the frame. When the motor of the main machine drives the diamond cutting rope to cut the CFG pile body, the main machine moves forward along the frame to adjust the tension of the diamond cutting rope in real time.

[0009] Furthermore, the mainframe is connected to the frame via a sliding device, which includes a small motor, a gear and a travel gear track;

[0010] Traveling gear tracks are arranged on both sides of the top of the frame, and racks are arranged on the traveling gear tracks;

[0011] Gears are arranged on both sides of the bottom of the main machine, the gears are meshed with racks on the traveling gear track, and the gears are connected with the small motor.

[0012] Furthermore, the steering mechanism includes a universal wheel assembly, a steering wheel assembly, a bracket and a vertical frame;

[0013] The bracket is fixed to the rear end of the frame, the vertical frame is vertically connected to the bottom of the outer side of the bracket, and the height of the vertical frame relative to the bracket is adjustable;

[0014] The steering wheel assembly includes a first pulley and a second pulley arranged on the left and right sides of the bottom of the bracket, the central axis of the first pulley is arranged vertically, and the central axis of the second pulley is arranged horizontally;

[0015] The universal wheel assembly is located at the rear side of the steering wheel assembly, and the universal wheel assembly is divided into two groups. The two groups of universal wheel assemblies are symmetrically arranged on the left and right sides, and each group of universal wheel assemblies includes a universal wheel and a bottom steering wheel assembly. The universal wheel is arranged at the top of the bracket, and the central axis of the universal wheel is arranged longitudinally; the bottom steering wheel assembly is arranged at the bottom of the vertical frame, and the bottom steering wheel assembly includes a third pulley, a fourth pulley and a fifth pulley. The third pulley is located directly below the universal wheel, and the fourth pulley and the fifth pulley are symmetrically arranged on the left and right sides of the third pulley. The central axis of the third pulley is arranged longitudinally, and the central axes of the fourth pulley and the fifth pulley are arranged vertically.

[0016] Furthermore, a guide sleeve is provided at the bottom of the universal wheel of the steering mechanism.

[0017] Furthermore, the universal wheel of the steering mechanism is made of aluminum alloy.

[0018] Furthermore, the bracket is provided with a connecting hole;

[0019] The vertical frame is provided with a plurality of through holes at equal intervals from top to bottom, and the through holes are connected to the connecting holes of the bracket through pins.

[0020] Furthermore, the host is provided with an electric control box, which is electrically connected to the motor and the small motor of the host, and the electric control box is electrically connected to a wireless remote controller.

[0021] Furthermore, a hanging ring is provided on the top of the main machine.

[0022] Furthermore, a limiter is provided at the front end of the traveling gear track.

[0023] Furthermore, the bottom of the frame is provided with walking wheels, and the front end of the frame is provided with a handle.

[0024] The beneficial effects of the present invention compared with the prior art are as follows:

[0025] 1. The device is easy to install and can be directly placed on the edge of the pile cap soil mold for cutting. Driven by the driving motor, driving wheel and steering mechanism, the diamond cutting rope not only has a fast cutting speed, but also can cut the entire section, making the section of the cut CFG pile head smooth, effectively solving the problem that the pile head cannot be cut off by mechanical equipment due to the small working space, reducing the consumption of energy and labor, and greatly improving the cutting quality; and the tension of the diamond cutting rope can be adjusted by moving the main machine while cutting, thereby greatly improving the production efficiency;

[0026] 2. This device adopts wireless remote control start and stop, which is simple and safe to operate, easy to install, no vibration, no noise, no dust pollution, and has a short construction period, fast speed and high efficiency;

[0027] It can be seen that the present application is applicable to the soil mold method CFG pile cap, which is simple to manufacture and operate, has low cost, fast cutting and high construction efficiency; the CFG pile head after cutting meets the pile top flatness requirement, will not cause oblique cracks in the pile body and shallow broken piles, no Class II piles appear, and the qualified rate reaches 100%; it reduces labor input, realizes mechanized operation, improves construction progress, reduces costs and improves benefits; the pile head cutting machine runs smoothly, and there will be no unsafe factors such as chiseling and splashing; it greatly improves construction efficiency, ensures construction safety, can be reused, and improves turnover rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional schematic diagram of the present application;

[0029] Figure 2 A side schematic diagram of the present application;

[0030] Figure 3 is a schematic diagram of a CFG pile;

[0031] Figure 4 Schematic diagram of the steering mechanism of this application Figure 1 ;

[0032] Figure 5 Schematic diagram of the steering mechanism of this application Figure 2 ;

[0033] In the figure: 1-frame, 2-wireless remote control, 3-lifting ring, 4-main machine, 5-universal wheel combination, 6-travel wheel, 7-diamond cutting rope, 8-driving main wheel, 9-limiter, 10-travel gear track, 11-CFG pile body, 12-pile cap soil mold, 13-gear, 14-fifth pulley, 15-fourth pulley, 16-third pulley, 17-universal wheel, 18-bracket, 19-vertical frame, 20-steering wheel combination, 21-first pulley, 22-second pulley, 23-guide sleeve. DETAILED DESCRIPTION

[0034] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0035] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0036] The "left and right" mentioned in the text refers to the width direction of the frame, the first pulley is located on the left, and the second pulley is located on the right; "front and back" refers to the length direction of the frame, and the steering mechanism is located at the front end of the main machine; "up and down" refers to the height direction of the frame.

[0037] Reference Figures 1 to 4 The present invention provides a technical solution: a device for quickly cutting the pile head of a CFG pile cap using a soil mold method, comprising a frame 1, a main machine 4, a diamond cutting rope 7 and a steering mechanism;

[0038] The main machine 4 includes a motor and a driving main wheel 8 connected to the end of the rotating shaft of the motor. The motor drives the driving main wheel 8 to rotate. One end of the diamond cutting rope 7 is wound around the driving main wheel 8, and the other end is wound around the CFG pile body 11 after passing through the steering mechanism.

[0039] The main machine 4 is slidably connected to the frame 1. When the motor of the main machine 4 drives the diamond cutting rope 7 to cut the CFG pile body 11, the main machine 4 moves forward along the frame 1 to adjust the tension of the diamond cutting rope 7 in real time, thereby ensuring higher working efficiency.

[0040] The mainframe 4 is connected to the frame 1 via a sliding device, which includes a small motor, a gear and a travel gear track 10;

[0041] Traveling gear tracks 10 are provided on both sides of the top of the frame 1, and racks are provided on the traveling gear tracks 10;

[0042] Gears 13 are provided on both sides of the bottom of the main machine 4. The gears 13 are meshed with the racks on the traveling gear track 10. The gears 13 are connected to a small motor. The small motor drives the gears 13 to rotate, so that the gears 13 slide back and forth on the traveling gear track 10. The relative sliding is relatively stable and has good safety performance.

[0043] like Figure 5 As shown, the steering mechanism includes a universal wheel assembly 5, a steering wheel assembly 20, a bracket 18 and a vertical frame 19;

[0044] The bracket 18 is fixed to the rear end of the frame 1, and the vertical frame 19 is vertically connected to the bottom of the outer side of the bracket 18, and the height of the vertical frame 19 relative to the bracket 18 is adjustable;

[0045] The steering wheel assembly 20 includes a first pulley 21 and a second pulley 22 disposed on the left and right sides of the bottom of the bracket 18, wherein the central axis of the first pulley 21 is disposed vertically, and the central axis of the second pulley 22 is disposed horizontally;

[0046] The universal wheel assembly 5 is located at the rear side of the steering wheel assembly 20. The universal wheel assembly 5 consists of two groups. The two groups of universal wheel assemblies 5 are symmetrically arranged on the left and right sides. Each group of universal wheel assembly 5 includes a universal wheel 17 and a bottom steering wheel assembly. The universal wheel 17 is arranged at the top of the bracket 18, and the central axis of the universal wheel 17 is arranged longitudinally; the bottom steering wheel assembly is arranged at the bottom of the vertical frame 19, and the bottom steering wheel assembly includes a third pulley 16, a fourth pulley 15 and a fifth pulley 14. The third pulley 16 is located directly below the universal wheel 17, and the fourth pulley 15 and the fifth pulley 14 are symmetrically arranged on the left and right sides of the third pulley 16. The central axis of the third pulley 16 is arranged longitudinally, and the central axes of the fourth pulley 15 and the fifth pulley 14 are arranged vertically.

[0047] A guide sleeve 23 is provided at the bottom of the universal wheel 17 of the steering mechanism.

[0048] The diamond cutting rope 7 wound on the driving main wheel 8 comes out from the top of the driving main wheel 8, passes around the universal wheel 17 and the bottom steering wheel group on the left in turn, then wraps around the outer peripheral surface of the CFG pile body 11, and then passes through the bottom steering wheel group and the universal wheel 17 on the right, and then passes through the second pulley 22 and the first pulley 21 in turn, and then wraps around the driving main wheel 8 from the bottom end of the driving main wheel 8.

[0049] The universal wheel 17 of the steering mechanism is made of aluminum alloy.

[0050] The bracket 18 is provided with a connecting hole;

[0051] The vertical frame 19 is provided with a plurality of through holes at equal intervals from top to bottom, and the through holes are connected to the connecting holes of the bracket 18 via pins to adjust the height of the vertical frame 19.

[0052] The host machine 4 is provided with an electric control box, which is electrically connected to the motor and the small motor of the host machine 4. The electric control box is electrically connected to the wireless remote control 2. The electric control box is controlled by the wireless remote control 2. The remote control operation is simpler and more comfortable, and the operator can maintain a certain safe distance from the running machine, thereby improving the safety factor of the work.

[0053] A lifting ring 3 is provided on the top of the main machine 4, which is convenient for lifting the present application with lifting equipment.

[0054] A limiter 9 is provided at the front end of the travel gear track 10 to prevent the main machine 4 from tipping over during the movement along the guide rail, and mainly plays a limiting role.

[0055] The bottom of the frame 1 is provided with a walking wheel 6, and the front end of the frame 1 is provided with a handle to facilitate the movement of the device.

[0056] The present application is directly controlled by a wireless remote controller 2, so that the mobility of the machine operation is increased and is not restricted by working conditions. In addition, the control operation using the remote controller is simpler and more comfortable, and the operator can maintain a certain safe distance from the running machine.

[0057] The universal wheel assembly is vertically fixed on the frame 1, has good stability, high safety performance, and is easy and convenient to align with the pile head cutting position; the universal wheel is made of aluminum alloy, which can effectively prevent corrosion and reduce weight.

[0058] The CFG pile body 11 is excavated with a soil mold 12 for the pile cap, the foundation pit is cleaned of slag, the pile head cutting device is in place and the diamond cutting rope 7 is installed, the line is measured and laid out on the CFG pile body 11, and the cutting edge line is marked; the diamond cutting rope 7 is passed around one side of the cutting edge line of the CFG pile body 11; the mechanical performance is debugged, and the operator operates the wireless remote control 2 to start the pile head cutting device, and the pile head is cut at a high speed according to the measured edge line.

[0059] The implementation process of the present invention:

[0060] 1. After the equipment arrives at the site, the pile head cutting device is moved into place by manually pushing and pulling the frame 1 and the running wheels 6, and the height of the vertical frame 19 is adjusted to match the cutting edge of the CFG pile body 11;

[0061] 2. The diamond cutting rope 7 is wound around the CFG pile body 11 to cut the edge line, and the diamond cutting rope 7 is wound around the steering mechanism and the driving main wheel 8;

[0062] 3. Move the host machine 4 to adjust the tension of the diamond cutting rope 7. The gear of the host machine 4 rotates along the rack of the traveling gear track 10, which can timely maintain the tension of the diamond cutting rope wound on the driving main wheel 8;

[0063] 4. Debugging the mechanical performance, the operator operates the wireless remote controller 2 to start the host 4, and cuts the pile head at high speed according to the measured edge line;

[0064] 5. After the pile head is cut off, the device is manually pushed and pulled to the next CFG pile body for cyclic operation. After the construction of this section is completed, the lifting ring 3 is used to directly remove the device as a whole.

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A device for quickly cutting the pile head of a CFG pile cap using a soil mold method, characterized in that: It comprises a frame (1), a main machine (4), a diamond cutting rope (7) and a steering mechanism; The main machine (4) comprises a motor and a driving main wheel (8) connected to the end of a rotating shaft of the motor, the motor drives the driving main wheel (8) to rotate, one end of the diamond cutting rope (7) is wound around the driving main wheel (8), and the other end is wound around the CFG pile body (11) after passing through a steering mechanism; The main machine (4) is slidably connected to the frame (1), and while the motor of the main machine (4) drives the diamond cutting rope (7) to cut the CFG pile body (11), the main machine (4) moves forward along the frame (1) to adjust the tension of the diamond cutting rope (7) in real time; The main machine (4) is connected to the frame (1) via a sliding device, and the sliding device includes a small motor, a gear and a travel gear track (10); Traveling gear tracks (10) are provided on both sides of the top of the frame (1), and racks are provided on the traveling gear tracks (10); Gears (13) are provided on both sides of the bottom of the main machine (4), the gears (13) are meshed with racks on the travel gear track (10), and the gears (13) are connected to a small motor; The steering mechanism comprises a universal wheel assembly (5), a steering wheel assembly (20), a bracket (18) and a vertical frame (19); The bracket (18) is fixed to the rear end of the frame (1), and the vertical frame (19) is vertically connected to the bottom of the outer side of the bracket (18), and the height of the vertical frame (19) relative to the bracket (18) is adjustable; The steering wheel assembly (20) comprises a first pulley (21) and a second pulley (22) arranged on the left and right sides of the bottom of the bracket (18), the central axis of the first pulley (21) being arranged vertically, and the central axis of the second pulley (22) being arranged horizontally; The universal wheel assembly (5) is located at the rear side of the steering wheel assembly (20). The universal wheel assembly (5) consists of two groups. The two groups of universal wheel assemblies (5) are symmetrically arranged on the left and right sides. Each group of universal wheel assemblies (5) includes a universal wheel (17) and a bottom steering wheel assembly. The universal wheel (17) is arranged at the top of the bracket (18). The central axis of the universal wheel (17) is arranged longitudinally. The bottom steering wheel assembly is arranged at the bottom of the vertical frame (19). The bottom steering wheel assembly includes a third pulley (16), a fourth pulley (15) and a fifth pulley (14). The third pulley (16) is located directly below the universal wheel (17). The fourth pulley (15) and the fifth pulley (14) are symmetrically arranged on the left and right sides of the third pulley (16). The central axis of the third pulley (16) is arranged longitudinally, and the central axes of the fourth pulley (15) and the fifth pulley (14) are arranged vertically. The diamond cutting rope (7) wound around the driving main wheel (8) comes out from the top of the driving main wheel (8), passes through the universal wheel (17) on the left and the bottom steering wheel group in sequence, then is wound around the outer peripheral surface of the CFG pile body (11), and then passes through the bottom steering wheel group and the universal wheel (17) on the right, and then passes through the second pulley (22) and the first pulley (21) in sequence, and then is wound around the driving main wheel (8) from the bottom end of the driving main wheel (8).

2. The device for quickly cutting the pile head of a CFG pile cap using a soil mold method according to claim 1 is characterized in that: A guide sleeve (23) is provided at the bottom of the universal wheel (17) of the steering mechanism.

3. The device for quickly cutting the pile head of a CFG pile cap using a soil mold method according to claim 2 is characterized by: The universal wheel (17) of the steering mechanism is made of aluminum alloy.

4. The device for quickly cutting the pile head of a CFG pile cap using a soil mold method according to claim 3 is characterized by: The bracket (18) is provided with a connecting hole; The vertical frame (19) is provided with a plurality of through holes at equal intervals from top to bottom, and the through holes are connected to the connection holes of the bracket (18) via pins.

5. The device for quickly cutting the pile head of a CFG pile cap using a soil mold method according to claim 4 is characterized in that: The host (4) is provided with an electric control box, the electric control box is electrically connected to the motor and the small motor of the host (4), and the electric control box is electrically connected to the wireless remote control (2).

6. The device for quickly cutting the pile head of a CFG pile cap using a soil mold method according to claim 5 is characterized by: A lifting ring (3) is provided on the top of the main machine (4).

7. The device for quickly cutting the pile head of a CFG pile cap using a soil mold method according to claim 6 is characterized by: A limiter (9) is provided at the front end of the traveling gear track (10).

8. The device for quickly cutting the pile head of a CFG pile cap using a soil mold method according to claim 7 is characterized by: The bottom of the frame (1) is provided with walking wheels (6), and the front end of the frame (1) is provided with a handle.

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