Mounting device for physical isolation sleeve of fan pile foundation reinforcement cage and construction method of mounting device

Abstract

The invention discloses an installation device for a physical isolation sleeve of a fan pile foundation reinforcement cage and a construction method of the installation device. The installation device comprises a base, a control switch, a motor, a working guide shaft, a sleeve type inner toothed bar, a transmission gear, a pushing baffle, a replaceable disc type cutting-off integrated plate and a speed reduction motor, and the motor is fixedly installed on the upper surface of the base; the control switch is electrically connected with the motor, the transmission gear is connected with the output end of the motor through the transmission belt, the sleeve type inner toothed bar is nested outside the working guide shaft and meshed with the transmission gear, the pushing baffle is fixedly connected with the sleeve type inner toothed bar, and the working guide shaft is sleeved with the pushing baffle. And the replaceable disc type cutting-off integrated plate is fixedly mounted at the other end of the working guide shaft. According to the method, the hard sleeve can be rapidly and accurately installed in place, the physical isolation operation efficiency of the reinforcing steel bars of the over-filled part of the cast-in-place pile of the fan foundation is remarkably improved, the installation time is shortened, the construction progress is accelerated, and accurate installation of the isolation sleeve is ensured.

Description

Technical Field

[0001] The present invention relates to the field of building construction technology, in particular to an installation device and a construction method for a physical isolation sleeve of a wind turbine pile foundation reinforcement cage, and is related to the installation of a physical isolation sleeve of a wind turbine pile foundation reinforcement cage in a wind power generation project. Background Art

[0002] In the construction industry, especially in wind turbine projects, the stability of wind turbine foundations is crucial to the safe operation of the entire power generation system. Wind turbine foundations are typically constructed using cast-in-place concrete piles, where the design and construction quality of the steel cage directly impact the pile foundation's load-bearing capacity and durability. Precise construction and handling of the steel cage are essential to ensure the pile foundation's stability under load and its performance during subsequent maintenance and operation.

[0003] Concrete piles are a commonly used deep foundation construction method, forming the pile foundation by pouring concrete into a drilled hole. This method is suitable for a variety of geological conditions, especially in soft soil, sandy soil, or loose soil. In wind farm construction, the weight of the wind turbines and the effects of wind force place even higher demands on the stability and load-bearing capacity of the pile foundation.

[0004] Before cast-in-place concrete pile construction, the overfilled rebar in the cage requires physical isolation. This prevents excessive bond strength between the concrete and the rebar, which would make it difficult to remove the overfilled concrete during subsequent pile head treatment. Traditional physical isolation methods include wrapping the rebar with plastic film, cardboard, or other insulating materials, but these methods suffer from unstable isolation and are susceptible to moisture.

[0005] To improve isolation and stability, rigid casing (such as PVC pipe) is used for isolation. Rigid casing not only effectively blocks the bond between concrete and rebar but also protects the rebar from damage during construction. However, existing rigid casing installation methods require manual installation of each casing individually. This is inefficient and labor-intensive when there are a large number of piles and a large number of vertical rebar in a single cage, and is prone to installation errors due to human error.

[0006] With the rapid development of the wind power industry, the demand for improving construction efficiency, reducing costs, ensuring construction safety, and enhancing project quality is increasing. Especially in large-scale construction projects, how to quickly and accurately complete the physical isolation of steel cages has become a technical challenge that needs to be solved urgently. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide an installation device and a construction method for the physical isolation sleeve of the wind turbine pile foundation steel cage, aiming to solve the problems of low construction efficiency, high labor intensity, insufficient precision and material waste existing in the prior art.

[0008] The technical solutions adopted by the present invention to solve the technical problems are as follows: A device for installing a physical isolation sleeve for a steel cage of a wind turbine pile foundation, comprising a base, a control switch, an electric motor, a working guide shaft, a sleeve-type internal gear rod, a transmission gear, a push baffle, a replaceable disc-type cutting integrated plate and a reduction motor; the base is used to support the entire device, the electric motor is fixedly mounted on the upper surface of the base for providing power; the control switch is mounted on the upper surface of the base and is electrically connected to the electric motor for controlling the start and stop of the electric motor; the transmission gear is connected to the output end of the electric motor through a transmission belt for The power is transmitted to the sleeve-type internal gear rod; the sleeve-type internal gear rod is nested outside the working guide shaft and can move along the axial direction of the working guide shaft, and the sleeve-type internal gear rod is engaged with the transmission gear; the push baffle is fixedly connected to the sleeve-type internal gear rod, and the push baffle is sleeved on the working guide shaft to push the hard sleeve; the replaceable disc-type cutting integrated plate is fixedly installed at the other end of the working guide shaft to cut off the hard sleeve; the reduction motor is fixedly installed on the upper surface of the base to drive the rotating plate of the replacement disc-type cutting integrated plate while increasing the torque.

[0009] Preferably, the replaceable disc-type cutting integrated plate includes a fixed plate and a rotating plate, the rotating plate is provided with a circular hole with a blade, and the rotating plate is connected to the working guide shaft through a bearing; the fixed plate is provided with a through hole, and the fixed plate and the working guide shaft are fixedly connected through a star-shaped piece; the through hole is used to pass through the hard sleeve, and the circular hole with a blade is used to cut the hard sleeve; the replaceable disc-type cutting integrated plate is a detachable structure.

[0010] Preferably, two V-shaped legs are fixedly mounted on the upper surface of the base, and the two V-shaped legs fixedly support the working guide shaft to ensure the stability and precision of the working guide shaft.

[0011] Preferably, a support leg is fixedly provided on the lower surface of the base, and a universal wheel is fixedly connected to the bottom end of the support leg, and the universal wheel is used for moving and positioning the device.

[0012] Preferably, the transmission gear is fixedly connected to the base via a gear support, and the gear support is used to support and position the transmission gear.

[0013] Preferably, a buffer limiter is provided on the upper surface of the base on the side of the working direction of the motor and the transmission gear, and the buffer limiter is used to limit the moving stroke of the push baffle to prevent equipment damage or personal injury caused by misoperation.

[0014] A construction method for installing a physical isolation sleeve of a wind turbine pile foundation reinforcement cage using the installation device comprises the following steps: (1) Pass the hard sleeve through the circular hole with blade of the replaceable disc-type cutting integrated plate and place it against the front end surface of the push baffle; (2) Move the installation device to the processed overfilled end of the cast-in-place pile reinforcement cage, and align the hard casing end with the vertical reinforcement at the overfilled end of the reinforcement cage; (3) The motor is started by the control switch, and the motor drives the transmission gear to rotate through the transmission belt, and the transmission gear drives the sleeve-type internal gear rod to move along the working guide shaft, and the sleeve-type internal gear rod drives the push baffle to move toward the steel cage, so that the hard sleeve is sleeved on the vertical steel bars of the overfilled part of the steel cage; (4) Activating the cutting device in the replaceable disc-type cutting integrated plate through the control switch to cut off the hard casing; (5) The motor is started by the control switch to reset the push baffle, thereby completing the installation operation of the physical isolation sleeve of the steel cage.

[0015] Preferably, before step 3, the method further includes the steps of checking whether the hard sleeve is intact and cleaning the hard sleeve.

[0016] Preferably, after step 4, the method further includes checking whether the hard casing is firmly fitted on the vertical reinforcement and reinforcing the hard casing. Preferably, after step 6, the method further includes the steps of inspecting and maintaining the installation device and cleaning the construction site.

[0017] The application scenario of the present invention is located in a steel bar processing site after the ground is hardened. The hard casing (such as a PVC pipe) used for physical isolation of the steel bars is passed through the reserved holes of the replaceable disc-type cutting integrated plate and then rests against the front end surface of the push baffle. The installation device of the present invention is moved to the over-filling end of the processed bored pile steel cage, so that the hard casing end is aligned with the vertical steel bars at the over-filling end of the steel cage. The motor is started by the control switch, and the motor drives the transmission gear to rotate through the transmission belt. The transmission gear drives the sleeve-type internal gear rod to move along the working guide shaft. The sleeve-type internal gear rod drives the push baffle to move toward the steel cage, and the hard casing is sleeved on the vertical steel bars of the over-filling part of the steel cage. The reduction motor is started by the control switch and drives the rotating plate of the replaceable disc-type cutting integrated plate to cut off the hard casing. The motor is started by the control switch to reset the push baffle for the next installation and use, so that the installation device of the present invention can greatly reduce the workload of the staff in the multiple physical isolation operations of steel bars before pouring concrete bored piles.

[0018] The positive beneficial effects of the present invention are as follows: 1. Improve construction efficiency: The installation device for the physical isolation sleeve of the steel cage of the fan pile foundation of the present invention can quickly and accurately install the hard sleeve in place, significantly improving the physical isolation operation efficiency of the over-filled steel bars of the fan foundation bored pile; compared with the traditional manual installation method, it reduces the installation time and speeds up the construction progress.

[0019] 2. Reduce labor intensity: The installation and construction method of the present invention reduces the physical labor of workers and reduces labor intensity; it is no longer necessary to manually install each hard casing in place, thereby reducing the physical burden on workers and improving work comfort.

[0020] 3. Improve construction accuracy: The installation and construction method of the present invention ensures the consistency and accuracy of the installation of the hard casing, avoids errors that may occur in manual operation, and thus improves the construction quality.

[0021] 4. Reduce material waste: The precise installation process of the present invention reduces the waste of hard casing, ensures the effective use of materials, and reduces material costs.

[0022] 5. Enhanced construction safety: The installation device of the present invention is designed with a buffer limiter, which effectively prevents equipment damage or personal injury caused by operational errors, thereby improving the safety of the construction site.

[0023] 6. Improve the durability of equipment: By precisely controlling the installation and cutting of hard casing, the impact and wear on the equipment are reduced, thereby extending the service life of the equipment.

[0024] 7. Strong adaptability: The design of the installation device of the present invention takes into account different specifications of pile diameters and the number of vertical steel bars. By replacing the replaceable disc-type cutting integrated plate, it can adapt to different construction requirements and has good adaptability.

[0025] 8. Easy to move on site: The universal wheels set under the base allow the device to be easily moved on the hardened steel cage processing site, improving the flexibility of on-site operations.

[0026] 9. Easy maintenance and operation: The installation device of the present invention is designed with the convenience of maintenance in mind, making the daily maintenance and operation of the equipment simpler and reducing maintenance costs.

[0027] 10. Environmentally friendly construction: By reducing material waste and improving construction efficiency, the present invention helps to reduce environmental pollution during the construction process and is in line with the concept of green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 Schematic diagram of the enlarged structure of the motor and gear; Figure 3 for Figure 1 An enlarged schematic diagram showing the positional relationship between the middle V-shaped support leg, the working guide shaft, and the sleeve-type internal gear rod; Figure 4 for Figure 1 Exploded view of the replaceable disc-type cutting integrated plate; In the figure: 1 base, 2 universal wheel, 3 support leg, 4 control switch, 5 buffer limiter, 6 motor working end, 7 motor, 8 gear support, 9 working guide shaft, 10 sleeve internal gear rod, 11 gear, 12 push guide plate, 13 transmission belt, 14 replaceable disc-type cutting integrated plate, 15 V-shaped support leg, 16 reduction integrated motor, 17 fixed plate, 18 rotating plate, 19 circular hole with blade, 20 bearing, 21 star-shaped piece, 22 through hole. DETAILED DESCRIPTION

[0029] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings and specific embodiments. It is obvious that the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] Example 1, please refer to Figure 1-Figure 4, a device for installing a physical isolation sleeve for a steel cage of a wind turbine pile foundation, comprising a base 1, a control switch 4, a motor 7, a working guide shaft 9, a sleeve-type internal gear rod 10, a transmission gear 11, a push baffle 12, a replaceable disc-type cutting integrated plate 14 and a reduction motor 16; the base 1 is used to support the entire device, the motor 7 is fixedly mounted on the upper surface of the base 1 for providing power; the control switch 4 is mounted on the upper surface of the base 1 and is electrically connected to the motor 7 for controlling the start and stop of the motor 7; the transmission gear 11 is connected to the output end 6 of the motor 7 through a transmission belt 13 for To transmit the power of the motor to the sleeve-type internal gear rod 10; the sleeve-type internal gear rod 10 is nested outside the working guide shaft 9 and can move along the axial direction of the working guide shaft 9, and the sleeve-type internal gear rod 10 is engaged with the transmission gear 11; the push baffle 12 is fixedly connected to the sleeve-type internal gear rod 10, and the push baffle 12 is sleeved on the working guide shaft 9 to push the hard sleeve; the replaceable disc-type cutting integrated plate 14 is fixedly mounted on the other end of the working guide shaft 9 to cut off the hard sleeve; the reduction motor 16 is fixedly mounted on the upper surface of the base 1 to drive the rotating plate of the replaceable disc-type cutting integrated plate while increasing the torque.

[0031] Among them, the replaceable disc-type cutting integrated plate 14 includes a fixed plate 17 and a rotating plate 18. A circular hole 19 with a blade is provided on the rotating plate 18, and the rotating plate 18 is connected to the working guide shaft 9 through a bearing 20; a through hole 22 is provided on the fixed plate 17, and the fixed plate 17 and the working guide shaft 9 are fixedly connected through a star-shaped piece 21; the through hole 22 is used to pass through the hard sleeve, and the circular hole 19 with a blade is used to cut the hard sleeve; the replaceable disc-type cutting integrated plate 14 is a detachable structure.

[0032] Two V-shaped legs 15 are fixedly mounted on the upper surface of the base 1 , and the two V-shaped legs 15 fixedly support the working guide shaft 9 to ensure the stability and accuracy of the working guide shaft.

[0033] A support leg 3 is fixedly provided on the lower surface of the base 1 , and a universal wheel 2 is fixedly connected to the bottom end of the support leg 3 . The universal wheel 2 is used for moving and positioning the device.

[0034] The transmission gear 11 is fixedly connected to the base 1 via a gear support 8 , and the gear support 8 is used to support and position the transmission gear 11 .

[0035] A buffer limiter 5 is provided on the upper surface of the base 1, on the working direction side of the motor 7 and the transmission gear 11. The buffer limiter 5 is used to limit the moving stroke of the push baffle 12 to prevent equipment damage or personal injury caused by misoperation.

[0036] Example 2: A construction method for installing a physical isolation sleeve of a wind turbine pile foundation reinforcement cage using the installation device described in Example 1, comprising the following steps: (1) Pass the hard sleeve through the bladed circular hole 19 of the replaceable disc-type cutting integrated plate 14 and press it against the front end surface of the push baffle 12; (2) Move the installation device to the processed overfilled end of the cast-in-place pile reinforcement cage, and align the hard casing end with the vertical reinforcement at the overfilled end of the reinforcement cage; (3) Start the motor 7 through the control switch 4. The motor 7 drives the transmission gear 11 to rotate through the transmission belt 13. The transmission gear 11 drives the sleeve-type internal gear rod 10 to move along the working guide shaft 9. The sleeve-type internal gear rod 10 drives the push baffle 12 to move toward the steel cage, and the hard sleeve is put on the vertical steel bars of the overfilled part of the steel cage; (4) Activate the cutting device in the replaceable disc-type cutting integrated plate 14 by controlling the switch 4 to cut off the hard casing; (5) Start the motor 7 by controlling the switch 4 to reset the push baffle 12, thus completing the installation operation of the physical isolation sleeve of the steel cage.

[0037] Before step 3, you need to check whether the hard casing is intact and clean the hard casing.

[0038] After step 4, it is necessary to check whether the rigid casing is firmly fitted on the vertical reinforcement and to reinforce the rigid casing. After step 6, it is necessary to inspect and maintain the installation device, as well as clean up the construction site.

[0039] The installation device for the physical isolation sleeve of the steel cage of the fan pile foundation of the present invention can quickly and accurately install the hard sleeve in place, significantly improving the efficiency of the physical isolation operation of the over-filled steel bars of the fan foundation bored pile; compared with the traditional manual installation method, it reduces the installation time and speeds up the construction progress.

[0040] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for installing a physical isolation sleeve for a steel cage of a wind turbine pile foundation, comprising a base (1), a control switch (4), a motor (7), a working guide shaft (9), a sleeve-type internal gear rod (10), a transmission gear (11), a push baffle (12), a replaceable disc-type cutting integrated plate (14) and a reduction motor (16); the base (1) is used to support the entire device, the motor (7) is fixedly mounted on the upper surface of the base (1) for providing power; the control switch (4) is mounted on the upper surface of the base (1) and is electrically connected to the motor (7) for controlling the start and stop of the motor (7); the transmission gear (11) is connected to the output end (6) of the motor (7) through a transmission belt (13) for The power of the motor is transmitted to the sleeve-type internal gear rod (10); the sleeve-type internal gear rod (10) is nested outside the working guide shaft (9) and can move along the axial direction of the working guide shaft (9), and the sleeve-type internal gear rod (10) is engaged with the transmission gear (11); the pushing baffle (12) is fixedly connected to the sleeve-type internal gear rod (10), and the pushing baffle (12) is sleeved on the working guide shaft (9) and is used to push the hard sleeve; the replaceable disc-type cutting integrated plate (14) is fixedly mounted on the other end of the working guide shaft (9) and is used to cut the hard sleeve; the reduction motor (16) is fixedly mounted on the upper surface of the base (1) and is used to drive the rotating plate (18) of the replacement disc-type cutting integrated plate (14) while increasing the torque.

2. The installation device for the physical isolation sleeve of the wind turbine pile foundation steel cage according to claim 1 is characterized in that: The replaceable disc-type cutting integrated plate (14) comprises a fixed plate (17) and a rotating plate (18); the rotating plate (18) is provided with a circular hole with a blade (19); the rotating plate (18) is connected to the working guide shaft (9) via a bearing (20); the fixed plate (17) is provided with a through hole (22); the fixed plate (17) is fixedly connected to the working guide shaft (9) via a star-shaped piece (21); the through hole (22) is used to pass through a hard sleeve, and the circular hole with a blade (19) is used to cut the hard sleeve; the replaceable disc-type cutting integrated plate (14) is a detachable structure.

3. The installation device for the physical isolation sleeve of the wind turbine pile foundation steel cage according to claim 1 is characterized in that: Two V-shaped legs (15) are fixedly mounted on the upper surface of the base (1), and the two V-shaped legs (15) fixedly support the working guide shaft (9) to ensure the stability and precision of the working guide shaft.

4. The installation device for the physical isolation sleeve of the wind turbine pile foundation steel cage according to claim 1 is characterized in that: A support leg (3) is fixedly provided on the lower surface of the base (1), and a universal wheel (2) is fixedly connected to the bottom end of the support leg (3). The universal wheel (2) is used for moving and positioning the device.

5. The installation device for the physical isolation sleeve of the wind turbine pile foundation reinforcement cage according to claim 1 is characterized in that: The transmission gear (11) is fixedly connected to the base (1) via a gear support (8), and the gear support (8) is used to support and position the transmission gear (11).

6. The installation device for the physical isolation sleeve of the wind turbine pile foundation steel cage according to claim 1 is characterized in that: A buffer-type limiter (5) is provided on the upper surface of the base (1) on one side of the working direction of the motor (7) and the transmission gear (11). The buffer-type limiter (5) is used to limit the moving stroke of the push baffle (12) to prevent equipment damage or personal injury caused by misoperation.

7. A construction method for installing a physical isolation sleeve of a wind turbine pile foundation reinforcement cage using the installation device according to any one of claims 1 to 6, characterized in that: The following steps are involved: (1) Passing the hard sleeve through the circular hole (19) with a blade of the replaceable disc-type cutting integrated plate (14) and pressing it against the front end surface of the push baffle (12); (2) Move the installation device to the processed overfilled end of the cast-in-place pile reinforcement cage, and align the hard casing end with the vertical reinforcement at the overfilled end of the reinforcement cage; (3) The motor (7) is started through the control switch (4), and the motor (7) drives the transmission gear (11) to rotate through the transmission belt (13), and the transmission gear (11) drives the sleeve-type internal gear rod (10) to move along the working guide shaft (9), and the sleeve-type internal gear rod (10) drives the push baffle (12) to move toward the steel cage, so that the hard sleeve is sleeved on the vertical steel bars of the overfilled portion of the steel cage; (4) starting the reduction motor (16) through the control switch (4) and driving the rotating plate (18) of the replaceable disc-type cutting integrated plate (14) to cut off the hard casing; (5) The motor (7) is started through the control switch (4), so that the push baffle (12) is reset, and the installation operation of the physical isolation sleeve of the steel cage is completed.

8. The construction method according to claim 7, characterized in that: Before step 3, steps of checking whether the hard casing is intact and cleaning the hard casing are also included.

9. The construction method according to claim 7, characterized in that: After step 4, the method further includes checking whether the hard casing is firmly sleeved on the vertical steel bars and reinforcing the hard casing.

10. The construction method according to claim 7, characterized in that: After step 6, the steps of inspecting and maintaining the installation device and cleaning the construction site are also included.

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