A rotatable jib vibrator and method of vibrating

Abstract

This invention relates to the field of concrete construction technology, and provides a reversible boom vibrator and a vibration method. The reversible boom vibrator includes a vibrating device, a slewing support, and a folding arm. One end of the slewing support can be fixed to the construction site; the other end of the slewing support can rotate about a vertical axis. The folding arm includes n connected segments, n≥3, with the first segment connected to the slewing support and the vibrating device mounted on the nth segment. Adjacent segments are connected by rotary joints, and the first segment and the slewing support are connected by rotary joints with the axis of the rotary joints horizontal. This invention solves the problems of poor vibration effect, high labor consumption, difficult on-site management, and high risk of personal safety accidents caused by the current method of using handheld vibrators in vibration operations.

Description

Technical Field

[0001] This invention relates to the field of concrete construction technology, and in particular to a reversible boom vibrator and a vibration method. Background Technology

[0002] During engineering construction or maintenance, after the concrete is poured, it needs to be vibrated to remove air bubbles, making the concrete denser and more uniform, and ultimately improving its strength and durability. In order to improve the efficiency of the vibration process, vibration equipment such as electric vibrators and electric vibrating plates are often used in actual engineering construction sites.

[0003] However, in current vibration compaction operations, the method of moving the vibrating equipment by hand in the area to be compacted is often adopted. This method requires a large number of construction workers to enter the area to be compacted. On the one hand, the compaction effect is limited by the physical fitness and skill level of the operators, which can easily lead to problems such as poor compaction effect and inconsistent compaction effect in different areas. On the other hand, there are also problems such as high labor consumption, difficulty in on-site management, and easy occurrence of personal safety accidents. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of poor vibration effect, high labor consumption, difficult on-site management, and easy personal safety accidents caused by the operation of existing vibration equipment by construction workers. The invention provides a retractable boom vibrator and vibration method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A retractable folding arm vibratory compactor includes a vibrating device, a slewing support base, and a folding arm.

[0007] One end of the slewing support can be fixed to the construction site; the other end of the slewing support can rotate around a vertical axis.

[0008] The articulated arm comprises n articulated arm segments connected end to end, where n≥3. The first articulated arm segment is connected to the slewing support, and the vibration device is mounted on the nth articulated arm segment. Adjacent articulated arm segments are connected to each other, and the first articulated arm segment is connected to the slewing support via rotary joints, the axis of which is horizontal.

[0009] The vibration equipment refers to existing technologies and includes, but is not limited to, electric equipment, internal combustion engine equipment, pneumatic equipment, vibratory rods, and vibratory plates; the connection methods between the vibration equipment and the articulated arm include, but are not limited to, fixed connection, suspension, and six-degree-of-freedom joint connection.

[0010] The fixing methods of the slewing support include, but are not limited to, anchoring connection, hydraulic outrigger system, and bolt connection; the slewing support can realize the rotation function through various rotating mechanisms, such as electric motor, internal combustion engine, and rotary cylinder.

[0011] Rotary joints include, but are not limited to, joints with a single pivot, joints with multiple pivots arranged side by side, and multi-link mechanisms, as long as they enable two adjacent articulated arm segments to swing relative to each other around a horizontal axis. Rotary joints can employ various driving methods, including, but not limited to, setting up devices at the rotary joint that can directly output rotational motion, such as servo motors and motors, or setting up linkage mechanisms between articulated arm segments to directly drive the articulated arm segments to rotate around the rotary joint.

[0012] The retractable boom vibratory compactor of this solution includes a slewing support base that can rotate around the vertical direction and a folding arm with at least three rotating joints. By coordinating the rotation angles of the slewing support base and the rotation angles of each rotating joint of the folding arm, the vibratory equipment can change its azimuth angle α along the circumference of the slewing support base and its radial distance r along the slewing support base. By continuously changing α and r, the position of the vibratory equipment can be continuously changed until the concrete compaction operation in the designated area is completed.

[0013] Taking the case where the number of articulated arm segments n=3 as an example, let the lengths of the first, second, and third articulated arm segments be L1, L2, and L3 respectively (taking the articulated arm segment closest to the slewing support as the first articulated arm segment); let the angles between the first, second, and third articulated arm segments and the horizontal plane be θ1, θ2, and θ3 respectively; then the radial distance r of the vibrating equipment along the slewing support and the height h of the vibrating equipment can be expressed as:

[0014] r=L1·cosθ1+L2·cosθ2+L3·cosθ3

[0015] h=L1·sinθ1+L2·sinθ2+L3·sinθ3

[0016] It is evident that changing any one of θ1, θ2, or θ3 can alter the magnitudes of r and h. Furthermore, when cosθ1 = cosθ2 = cosθ3 = 1, r reaches its maximum, equal to L1 + L2 + L3. Similarly, when sinθ1 = sinθ2 = sinθ3 = 1, h reaches its maximum, also equal to L1 + L2 + L3. Theoretically, this scheme allows the vibrating equipment to reach any point within a spherical space of radius L1 + L2 + L3 (in practical engineering, only the upper half of the spherical space is needed). By adjusting the specific values ​​of L1 + L2 + L3 and the installation position of the rotary support, the spherical space can encompass the construction area, enabling the vibrating equipment to vibrate the concrete at any point within the construction area.

[0017] As can be seen from the above formula, in order for the vibrating device to reach any point in a spherical space with a radius not exceeding the maximum length of the folding arm, it is only necessary for the folding arm to have two folding arm segments. However, this solution makes the folding arm have at least three folding arm segments. The extra third folding arm segment can be used to keep the posture of the vibrating device constant, for example, to keep θ3 constant at 90°, thereby ensuring the vibration effect.

[0018] In summary, the retractable boom vibratory compactor of this design can change the horizontal position and height of the vibratory equipment by rotating the slewing support and coordinating the rotation of each rotating joint of the boom. This allows for the compaction of concrete at different locations. On the one hand, the posture and position of the vibratory equipment are determined by the rotation angle of the slewing support and each rotating joint, eliminating the interference of personnel skill and thus achieving better and more stable compaction results. On the other hand, this design eliminates the need for operators to carry the vibratory equipment around the construction area, thereby significantly reducing labor costs, simplifying on-site management, and preventing personal safety accidents in the construction area.

[0019] As a preferred embodiment of the present invention, the longer the folding arm segment is, the closer it is to the slewing support base.

[0020] For example, when n=3, let the lengths of the first, second, and third articulated arm segments be L1, L2, and L3 respectively (taking the articulated arm segment closest to the slewing support as the first articulated arm segment), then L1>L2>L3.

[0021] This design increases the length of the articulated arm segments closer to the slewing support, ensuring that the bending moment generated by the self-weight of the (i+1)th articulated arm segment on the ith articulated arm segment decreases as i increases (1≤i<n). This reduces the torque between different articulated arm segments and between the articulated arm and the slewing support, thereby reducing the load on the corresponding rotary joints and improving the operational stability of the design. Furthermore, it allows articulated arm segments farther from the slewing support to rotate more flexibly, improving the efficiency of the articulated arm moving vibration equipment and ultimately increasing the vibration efficiency.

[0022] As a preferred embodiment of the present invention, both ends of the i-th folding arm segment are provided with bending portions, and the bending portions extend toward the same side of the folding arm segment along the height direction. The rotary joint is connected to the end of the bending portion away from the folding arm segment. The distance between the bending portions at both ends of the i-th folding arm segment is greater than the length of the (i+1)-th folding arm segment, and 1≤i<n.

[0023] The bends extend toward the same side of the articulated arm segment along the height direction. For example, the bends at both ends of the articulated arm segment extend downwards, or the bends at both ends of the articulated arm segment extend upwards. The bends at both ends of the same articulated arm segment extend in the same direction, while the bends of different articulated arm segments may extend in the same or different directions. It should be noted that the height direction here refers to the height direction of the articulated arm segment itself, that is, the direction that is perpendicular to both the length direction of the articulated arm segment and the axis of rotation of the joint.

[0024] This design features bends at both ends of the folding arm segment and a rotary joint on the bends, making the folding arm segment roughly shaped like a "[" rotated 90 degrees. When the folding arm is not in use, the (i+1)th folding arm segment can be stored in the area between the bends at both ends of the ith folding arm segment, thereby reducing the space occupied by the folding arm and making it easier to transport and store.

[0025] As a preferred embodiment of the present invention, a counterweight platform is also connected to the slewing support base, and the center of gravity of the counterweight platform is biased towards the side of the slewing support base away from the folding arm.

[0026] The folding arm is connected to one end of the slewing support and extends away from the slewing support, generating a corresponding overturning moment. In this design, the center of gravity of the counterweight platform is located on the side of the slewing support away from the folding arm, thus generating a moment opposite to the overturning moment. This reduces the overturning effect of the folding arm on the slewing support, making the operation of the counterweight platform more stable and safer. The specific value of the counterweight platform mass can be set based on experience, preferably to counteract the overturning moment generated by the folding arm on the slewing support as much as possible.

[0027] As a preferred embodiment of the present invention, a first link is hinged to the i-th articulated arm segment, and a second link is hinged to the (i+1)-th articulated arm segment. The first link and the second link are also hinged together. The first link, the second link, the i-th articulated arm segment, and the (i+1)-th articulated arm segment together form a four-bar linkage. The four-bar linkage is also provided with a telescopic rod, which can extend and retract to drive two adjacent articulated arm segments to swing around the corresponding rotary joint.

[0028] The specific structural form of a four-bar linkage depends on actual needs, such as quick-return characteristics and movable angle, and includes, but is not limited to, parallelogram mechanisms and double rocker mechanisms. The telescopic rod can be configured in various ways, such as having both ends hinged to the i-th articulated arm segment and the first link, or both ends hinged to the first link and the second link; the specific structural form of the telescopic rod includes, but is not limited to, hydraulic telescopic rods, pneumatic telescopic rods, and electric telescopic rods.

[0029] This design can provide power for the relative oscillation of two adjacent articulated arm segments.

[0030] As a preferred embodiment of the present invention, a fixed pipe pile is fixed to the bottom of the slewing support base, the length of the fixed pipe pile is set in the vertical direction, and the slewing support base is fixed to the construction site by the fixed pipe pile.

[0031] This plan provides specific methods for fixing the slewing bearing seat to the construction site.

[0032] As a preferred embodiment of the present invention, the cross-sectional dimensions of the fixed pipe pile are larger at the top and smaller at the bottom.

[0033] The cross-sectional dimensions of fixed pipe piles can vary continuously or in a stepped manner along the height direction.

[0034] The fixed pipe piles in this design are wider at the top and narrower at the bottom, making them easier to insert into the pile hole during installation and thus improving installation efficiency.

[0035] A vibration compaction method includes the following steps:

[0036] S1. Fix a reversible boom vibratory compactor of the present invention at the construction site;

[0037] S2. By rotating the slewing support, the azimuth angle α of the vibrating device along the circumference of the slewing support is changed, thereby vibrating the concrete at different positions on the slewing support; by rotating the rotary joint, the radial distance r of the vibrating device along the slewing support is changed, thereby vibrating the concrete at different distances on the slewing support; thus completing the vibration operation of the designated construction area.

[0038] This solution uses the retractable boom vibrator of this invention to vibrate the concrete in the construction area, replacing the original operation method of construction personnel walking around the construction area with hand-held vibrating equipment. This reduces the input of construction personnel, thereby reducing labor consumption, reducing on-site management difficulty, and avoiding personal safety accidents in the construction area. At the same time, by eliminating the interference of personnel quality, better and more stable vibration effect can be obtained.

[0039] As a preferred embodiment of the present invention, the height h of the vibrating device is changed by rotating the rotary joint, thereby vibrating the concrete at different heights.

[0040] This solution utilizes the characteristic that the height of the vibrating equipment can be changed by the folding arm. When it is necessary to vibrate concrete at different heights, the height of the vibrating equipment can be changed directly by the coordination of the rotating joints of the folding arm, thus eliminating the need to move the entire vibrating machine along the height direction. This solution's reversible folding arm vibrator has higher vibration efficiency.

[0041] As a preferred embodiment of the present invention, when multiple concrete layers need to be constructed sequentially from bottom to top along the height direction, and the bottom of the slewing support is provided with fixed pipe piles, the following steps are also included:

[0042] A. Construct pipe pile holes at the construction site; insert and fix pipe piles at the pipe pile holes, and install the reversible boom vibrator on the fixed pipe piles;

[0043] B. Fix a pipe pile mold on one side of the reversible boom vibrator. The pipe pile mold is used to form a new pipe pile hole. The height of the pipe pile mold is greater than or equal to the height of the concrete layer to be constructed.

[0044] C. Pour the concrete layer and vibrate the concrete layer according to step S2 to complete the construction of the concrete layer.

[0045] D. Remove the pipe pile mold and expose the new pipe pile hole; move the reversible boom vibratory compactor and the fixed pipe pile from the original pipe pile hole to the new pipe pile hole;

[0046] E. Repeat steps B to D until the construction of each concrete layer within the specified height is completed.

[0047] When multiple concrete layers need to be constructed sequentially from bottom to top along the height direction, this solution involves reserving a pipe pile mold on one side of the retractable boom vibrator before pouring the next concrete layer. This allows a new pipe pile hole to be formed at the height of the next concrete layer. The fixed pipe pile of the retractable boom vibrator can then be reinserted into the new pipe pile hole, thus enabling the retractable boom vibrator to move upwards along the height direction as a whole.

[0048] It is evident that this solution eliminates the need to raise (lengthen) the fixed pipe piles, which simplifies the construction process, improves construction efficiency, and avoids the risk of structural instability caused by excessively high (long) fixed pipe piles; it also reduces the manufacturing cost of the fixed pipe piles.

[0049] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0050] 1. The retractable boom vibratory compactor of this solution can change the horizontal position and height of the vibratory equipment by rotating the slewing support and coordinating the rotation of each rotating joint of the boom, thereby vibrating concrete at different locations. On the one hand, the posture and position of the vibratory equipment are jointly determined by the rotation angle of the slewing support and each rotating joint, eliminating the interference of personnel skill, thus achieving better and more stable vibration effect. On the other hand, this solution eliminates the need for operators to carry the vibratory equipment around the construction area, thus greatly reducing labor consumption, reducing on-site management difficulty, and avoiding personal safety accidents in the construction area.

[0051] 2. This solution uses the retractable boom vibrator of this invention to vibrate the concrete in the construction area, replacing the original operation method of construction personnel walking around the construction area with hand-held vibrating equipment. This reduces the input of construction personnel, thereby reducing labor consumption, reducing on-site management difficulty, and avoiding personal safety accidents in the construction area. At the same time, because the interference of personnel quality is eliminated, better and more stable vibration effect can be obtained. Attached Figure Description

[0052] Figure 1 This is a side view of the reversible boom vibratory compactor of the present invention. Figure 1 ;

[0053] Figure 2 yes Figure 1 A magnified schematic diagram of the local structure at point I;

[0054] Figure 3 This is a side view schematic diagram of a reversible boom vibratory compactor according to the present invention. Figure 2 ;

[0055] Figure 4 This is a side view schematic diagram of a reversible boom vibratory compactor according to the present invention. Figure 3 ;

[0056] Figure 5 This is a side view schematic diagram of a reversible boom vibratory compactor according to the present invention. Figure 4 ;

[0057] Figure 6 This is a side view of the articulated arm segment.

[0058] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure of section AA;

[0059] Figure 8 This is a construction diagram of the vibration method of the present invention during the construction of the pipe pile hole in step A;

[0060] Figure 9 This is a construction schematic diagram of a vibration method according to the present invention in step C state;

[0061] Figure 10 This is a construction schematic diagram of a vibration method according to the present invention in step D state;

[0062] Figure 11 yes Figure 8 A magnified schematic diagram of the local structure at point II;

[0063] Figure 12 This is a partially enlarged structural diagram of the vibrating equipment of a retractable boom vibrator according to the present invention;

[0064] Icons: 1-Slewing support seat; 21-Folding arm segment; 22-Rotating joint; 23-Telescopic rod; 24-First connecting rod; 25-Second connecting rod; 3-Vibration equipment; 30-Electric vibrator; 31-Mounting bracket; 32-Lifting lug; 4-Counterweight platform; 41-Counterweight block; 5-Fixed pipe pile; 6-Pipe pile mold; 7-Concrete layer; 8-Screw jack. Detailed Implementation

[0065] The present invention will now be described in detail with reference to the accompanying drawings.

[0066] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0067] In the following description of specific embodiments, terms such as "up," "down," "left," "right," "center," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the device / apparatus is typically placed during use. These terms are merely for ease of description or simplification of the description in the specific embodiments, to facilitate quick understanding of the solution by those skilled in the art, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0068] The terms "horizontal," "vertical," etc., do not imply that the corresponding device / component / element must be absolutely horizontal, vertical, or suspended, but rather can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a specific orientation such as "horizontal" or "vertical," can have an error / deviation of ±10% relative to that orientation, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0069] The terms “first,” “second,” “third,” etc., are merely used to distinguish identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0070] The terms “set up,” “install,” “connect,” and “link” should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections. They can refer to common connection methods in the field, such as welding, riveting, bolting, and threaded connections. They can refer to direct connections or indirect connections through an intermediate medium. They can refer to the internal connection between two components.

[0071] Example 1

[0072] like Figures 1 to 7 and Figure 12 As shown, the reversible boom vibratory compactor used in this embodiment includes a vibrating device 3, a slewing support 1, and a folding arm. One end of the slewing support 1 can be fixed to the construction site. The other end of the slewing support 1 can rotate around a vertical axis. The folding arm includes n folding arm segments 21 connected end to end, where n ≥ 3. The first folding arm segment 21 is connected to the slewing support 1, and the vibrating device 3 is installed on the nth folding arm segment 21. Adjacent folding arm segments 21 and the first folding arm segment 21 and the slewing support 1 are connected by a rotary joint 22, the axis of which is horizontal.

[0073] Specifically, in this embodiment, the slewing support 1 is driven by a hydraulic motor, thereby generating a large driving torque; the slewing support 1 has a rotation angle greater than or equal to 360°. The specific dimensions of the slewing support 1 are designed according to the actual load conditions, and need to be able to withstand the axial force, radial force, and overturning moment generated by the articulated arm on the slewing support 1; the articulated arm in this embodiment includes three articulated arm segments 21 connected end to end. Figure 3 From right to left, the arms are called the upper arm, middle arm, and forearm.

[0074] Furthermore, the length of the articulated arm segment 21 closer to the slewing support 1 is longer; even further, the cross-sectional area of ​​the articulated arm segment 21 closer to the slewing support 1 is larger. Specifically, in this embodiment, as... Figure 7 As shown, the height and width of the articulated arm segment 21 are H and W, respectively. The cross-sectional dimensions of the upper arm are H470mm×W300mm, the cross-sectional dimensions of the middle arm are H360mm×W260mm, and the cross-sectional dimensions of the forearm are H280mm×W220mm. The length of the upper arm is L1=8080mm, the length of the middle arm is L2=5665mm, and the length of the forearm is L3=4758mm.

[0075] like Figure 4 and Figure 5 As shown, let the angles between the upper arm, middle arm, and forearm and the horizontal plane be θ1, θ2, and θ3, respectively; then the distance r of the vibrating device 3 along the radial direction of the slewing support 1, and the height h of the vibrating device 3 can be expressed as:

[0076] r=L1·cosθ1+L2·cosθ2+L3·cosθ3

[0077] h=L1·sinθ1+L2·sinθ2+L3·sinθ3

[0078] It is evident that changing any one of θ1, θ2, or θ3 can alter the magnitudes of r and h. Furthermore, when cosθ1 = cosθ2 = cosθ3 = 1, r reaches its maximum, equal to L1 + L2 + L3 = 18503 mm. When sinθ1 = sinθ2 = sinθ3 = 1, h reaches its maximum, also equal to L1 + L2 + L3 = 18503 mm. Theoretically, this scheme allows the vibrating device 3 to reach any point within a spherical space with a radius of 18503 mm (in actual engineering, only the upper half of the spherical space is needed). By adjusting the specific values ​​of L1 + L2 + L3 and the installation position of the rotary support 1, the spherical space can encompass the construction area, enabling the vibrating device 3 to vibrate the concrete at any point within the construction area.

[0079] Furthermore, the i-th folding arm segment 21 is provided with a storage space, the size of which is larger than that of the (i+1)-th folding arm segment 21. The (i+1)-th folding arm segment 21 can rotate into the storage space, 1 ≤ i < n. Both ends of the i-th folding arm segment 21 are provided with bent portions, which extend towards the same side of the folding arm segment 21 along the height direction. The rotary joint 22 is connected to the end of the bent portion away from the folding arm segment 21. The distance between the bent portions at both ends of the i-th folding arm segment 21 is greater than the length of the (i+1)-th folding arm segment 21, 1 ≤ i < n. For this embodiment, as... Figure 6 As shown, both ends of the upper arm and the middle arm are provided with bent sections, and both extend downwards, so that the shape of the upper arm is a "[" shape rotated 90 degrees clockwise. Rotation joints 22 are set on both sides. The area between the two bent sections of the upper arm can be used as the storage space for the middle arm. Similarly, the shape of the middle arm is a "[" shape rotated 90 degrees clockwise, with rotation joints 22 set on both sides. The area between the two bent sections of the middle arm can be used as the storage space for the forearm. When it is necessary to store the folding arm, the forearm can be folded into the storage space of the middle arm first, and then the middle arm can be folded into the storage space of the upper arm, so that the overall size of the folding arm is only comparable to that of the upper arm.

[0080] Furthermore, a counterweight platform 4 is also connected to the slewing support 1, and the center of gravity of the counterweight platform 4 is offset towards the side of the slewing support 1 away from the articulated arm. For example... Figure 1As shown, in this embodiment, the counterweight platform 4 is fixedly connected to the side of the slewing support 1 away from the folding arm by a triangular bracket. The platform includes a number of counterweight blocks 41 that are stacked vertically, and the number of counterweight blocks 41 can be adjusted according to the actual situation. The counterweight blocks 41 include, but are not limited to, cement blocks and metal blocks.

[0081] Furthermore, a telescopic rod 23 is provided between two adjacent articulated arm segments 21. The two ends of the telescopic rod 23 are respectively connected to the corresponding sides of the articulated arm segments 21. The extension and retraction of the telescopic rod 23 can cause the two adjacent articulated arm segments 21 to swing around the corresponding rotary joint 22. Specifically, as shown... Figure 2 As shown, taking the connection structure of the upper arm and the middle arm as an example, in addition to being connected by the rotary joint 22, the upper arm and the middle arm also include a first link 24 and a second link 25. The first link 24 is hinged to the upper arm, and the second link 25 is hinged to the middle arm. The movable ends of the first link 24 and the second link 25 are also hinged together, and all the hinge joint axes are along the horizontal direction, so that the upper arm, the middle arm, the first link 24, and the second link 25 together form a four-bar linkage. One end of the telescopic rod 23 is hinged to the upper arm, and the other end is hinged to the hinge point of the first link 24 and the second link 25, so that the included angle between the upper arm and the middle arm can be increased or decreased by extending and shortening.

[0082] Furthermore, a fixed pipe pile 5 is fixed to the bottom of the slewing support 1. The length of the fixed pipe pile 5 is vertical, and the slewing support 1 is fixed to the construction site by the fixed pipe pile 5. A first flange is provided on the side of the slewing support 1 facing the fixed pipe pile 5, and a second flange is provided on the side of the fixed pipe pile 5 facing the slewing support 1. The first flange and the second flange are connected by bolts, thereby realizing a detachable connection between the slewing support 1 and the fixed pipe pile 5.

[0083] Furthermore, the cross-sectional dimensions of the fixed pipe pile 5 are larger at the top and smaller at the bottom. Specifically, in this embodiment, the cross-sectional dimensions of the fixed pipe pile 5 gradually decrease from top to bottom, that is, the side wall of the fixed pipe pile 5 has a taper. During the insertion process into the pipe pile hole, this not only makes it easier for the fixed pipe pile 5 to be inserted into the pipe pile hole, but also has a certain centering effect, thereby ensuring the coaxiality of the fixed pipe pile 5 and the pipe pile hole and improving the construction accuracy.

[0084] Furthermore, such as Figure 12 As shown, the vibration device 3 in this embodiment includes a mounting bracket 31 and an electric vibrator 30; the electric vibrator 30 is fixed on the mounting bracket 31 with its axis in a vertical direction; the number of electric vibrators 30 is greater than one, and they are distributed in a rectangular array on the mounting bracket 31, thereby increasing the vibration area of ​​the vibration device 3.

[0085] Furthermore, such as Figure 12As shown, the mounting bracket 31 is suspended below the forearm by a lug 32 located at its top; the lug 32 has a mounting hole with its axis in the horizontal direction, and the lug 32 is rotatably connected to the forearm through the mounting hole, so that the mounting bracket 31 can swing relative to the forearm about an axis parallel to the horizontal direction; when the mounting bracket 31 swings to one side of the axis of the mounting hole, such as the right side, the weight of the mounting bracket 31 will generate a clockwise torque on the mounting bracket 31, thereby forcing the mounting bracket 31 to return to a state where the line connecting its center of mass and the center of the mounting hole is parallel to the vertical direction; it can be seen that the mounting bracket 31 of this solution has an automatic return function, and the electric vibrator 30 connected to the mounting bracket 31 can maintain a vertical posture, thereby ensuring the vibration effect.

[0086] Furthermore, the mounting bracket 31 and the lifting lug 32 are connected by a rotating joint 22. The axis of the rotating joint 22 is vertical and can rotate at an angle greater than or equal to 360°, allowing the mounting bracket 31 to rotate freely around the vertical axis, thereby freely adjusting the vibration angle.

[0087] Example 2

[0088] like Figures 4 to 5 ,as well as Figures 8 to 11 As shown, the vibration method used in this embodiment includes the following steps:

[0089] S1. Fix one of the reversible boom vibratory compactors from Example 1 at the construction site;

[0090] S2. By rotating the slewing support 1, the azimuth angle α of the vibrating device 3 along the circumference of the slewing support 1 is changed, thereby vibrating the concrete at different positions on the slewing support 1; by rotating the rotary joint 22, the radial distance r of the vibrating device 3 along the slewing support 1 is changed, thereby vibrating the concrete at different distances on the slewing support 1; thus completing the vibration operation of the designated construction area.

[0091] In step S2, the specific values ​​of α and r are changed according to the actual vibration requirements. If it is necessary to vibrate the concrete on the side of the slewing support 1 away from the folding arm, α can be changed by 180°. If it is necessary to vibrate the concrete at a radial distance of 18503mm from the connection point between the slewing support 1 and the folding arm, θ1=θ2=θ3=0°.

[0092] The ways to adjust α and r include, but are not limited to:

[0093] Option 1: Make α continuously increase or decrease monotonically, and at the same time make r increase monotonically from the minimum value or decrease monotonically from the maximum value, so that the vibrating equipment forms a spiral path.

[0094] Option 2: Make α monotonically increase or decrease in a stepwise manner, and for each time α increases or decreases to a new value, make r monotonically increase from the minimum value to the maximum value, or monotonically decrease from the maximum value to the minimum value and then increase or decrease to the next value, so that the vibrating equipment forms a radial path centered on the rotary support seat 1.

[0095] Option 3: Make r monotonically increase or decrease in a stepwise manner, and for each time r increases or decreases to a new value, make α increase or decrease by at least 360° before increasing or decreasing to the next value, so that the vibrating equipment forms a concentric circular path centered on the rotary support seat 1.

[0096] Furthermore, step S2 also includes: changing the height h of the vibrating device 3 by rotating the rotary joint 22, thereby vibrating the concrete at different heights.

[0097] For example, if it is necessary to vibrate the concrete at a point 18503 mm above the connection point between the slewing support seat 1 and the articulated arm, then θ1 = θ2 = θ3 = 90°.

[0098] Furthermore, when multiple concrete layers 7 need to be constructed sequentially from bottom to top along the height direction, the following steps are also included:

[0099] A. Construct pipe pile holes at the construction site; insert and fix pipe pile 5 at the pipe pile hole, and install the reversible boom vibrator on the fixed pipe pile 5;

[0100] B. Fix the pipe pile mold 6 on one side of the reversible boom vibrator. The pipe pile mold 6 is used to form a new pipe pile hole. The height of the pipe pile mold 6 is greater than or equal to the height of the concrete layer 7 to be constructed.

[0101] C. Pour concrete layer 7, and vibrate concrete layer 7 according to step S2 to complete the construction of concrete layer 7.

[0102] D. Remove the pipe pile mold 6 and expose the new pipe pile hole; move the reversible boom vibratory compactor and the fixed pipe pile 5 from the original pipe pile hole to the new pipe pile hole;

[0103] E. Repeat steps B to D until the construction of each concrete layer 7 within the specified height is completed.

[0104] Taking the pouring of three layers of concrete (layer 7) as an example, from bottom to top they are named the first layer of concrete, the second layer of concrete, and the third layer of concrete, respectively. The specific construction steps of this scheme are as follows:

[0105] Step 1, such as Figure 8 and Figure 11As shown, the first layer of concrete is poured. Before pouring, the pipe pile mold 6 is set at the predetermined installation position of the reversible boom vibrator to form the pipe pile hole. After the concrete layer 7 has cured, the pipe pile mold 6 is loosened by the spiral jack 8. The pipe pile mold 6 is lifted and removed to expose the pipe pile hole. The fixed pipe pile 5 of the reversible boom vibrator is then inserted into the pipe pile hole.

[0106] Step 2, as follows Figure 9 As shown, a pipe pile mold 6 is set on one side of the retractable boom vibrator. In this embodiment, the pipe pile mold 6 is set at a distance of 2m from the retractable boom vibrator to avoid interfering with the operation of the retractable boom vibrator. The pipe pile mold 6 is used to form new pipe pile holes, and the height of the pipe pile mold 6 is greater than or equal to the height of the second layer of concrete 7.

[0107] Step 3, similarly Figure 9 As shown, pour the second layer of concrete 7; vibrate the second layer of concrete 7 according to step S2; complete the construction of the second layer of concrete 7; after the second layer of concrete 7 has cured, use the spiral jack 8 to loosen the pipe pile mold 6; lift and remove the pipe pile mold 6 to expose the new pipe pile hole, that is, the pipe pile hole located on the right side of the figure, and move the reversible boom vibrator from the original pipe pile hole to the new pipe pile hole.

[0108] Step 4, as follows Figure 10 As shown, a pipe pile mold 6 is set on one side of the retractable boom vibrator. The pipe pile mold 6 is used to form a new pipe pile hole. The height of the pipe pile mold 6 is greater than or equal to the height of the second layer of concrete 7. Specifically, the pipe pile mold 6 is set above the original pipe pile hole in step three. The original pipe pile hole in step three is backfilled before the pipe pile mold 6 is installed.

[0109] Step 5, similarly Figure 10 As shown, pour the third layer of concrete 7; vibrate the third layer of concrete 7 according to step S2; and complete the construction of the third layer of concrete 7.

[0110] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibration compaction method, characterized in that, This invention relates to a retractable boom vibratory compactor, which includes a vibrating device (3), a slewing support (1), and a folding arm. The slewing support (1) has a fixed pipe pile (5) at its bottom, the length of which is set vertically. The slewing support (1) is fixed to the construction site via the fixed pipe pile (5). The other end of the slewing support (1) can rotate around a vertical axis. The folding arm includes n connected folding arm segments (21), n≥3. The first folding arm segment (21) is connected to the slewing support (1), and the vibrating device (3) is installed on the nth folding arm segment (21). Adjacent folding arms... The segments (21) are connected to each other, the first folding arm segment (21) and the slewing support (1) are connected by a rotary joint (22) with the axis of the rotary joint (22) being horizontal. The vibration device (3) includes a mounting bracket (31) and an electric vibrator (30). The electric vibrator (30) is fixed on the mounting bracket (31) with its axis in a vertical position. The mounting bracket (31) is suspended below the nth folding arm segment (21) by a lug (32) set on its top. The lug (32) has a mounting hole with its axis in a horizontal position. The lug (32) is rotatably connected to the nth folding arm segment (21) through the mounting hole. The vibration method includes the following steps: S1. Fix the retractable boom vibratory compactor at the construction site; S2. By rotating the slewing support (1), the azimuth angle α of the vibrating device (3) along the circumference of the slewing support (1) is changed, thereby vibrating the concrete at different positions of the slewing support (1); by rotating the rotary joint (22), the radial distance r of the vibrating device (3) along the slewing support (1) is changed, thereby vibrating the concrete at different distances of the slewing support (1); and the vibration operation of the designated construction area is completed. When multiple concrete layers (7) need to be constructed sequentially from bottom to top along the height direction, the following steps are also included: A. Construct pipe pile holes at the construction site; insert the fixed pipe pile (5) at the pipe pile hole, and install the reversible boom vibrator on the fixed pipe pile (5); B. Fix a pipe pile mold (6) on one side of the reversible boom vibrator. The pipe pile mold (6) is used to form a new pipe pile hole. The height of the pipe pile mold (6) is greater than or equal to the height of the concrete layer (7) to be constructed. C. Pour concrete layer (7), and vibrate the concrete layer (7) according to step S2 to complete the construction of concrete layer (7); D. Remove the pipe pile mold (6) and expose the new pipe pile hole; move the reversible boom vibrator and the fixed pipe pile (5) from the original pipe pile hole to the new pipe pile hole; E. Repeat steps B to D until the construction of each concrete layer (7) within the specified height is completed.

2. The vibration method according to claim 1, characterized in that, The longer the articulated arm segment (21) is, the closer it is to the slewing support (1).

3. The vibration method according to claim 2, characterized in that, Both ends of the i-th folding arm segment (21) are provided with bending portions, and the bending portions extend toward the same side of the folding arm segment (21) along the height direction. The rotary joint (22) is connected to the end of the bending portion away from the folding arm segment (21). The distance between the bending portions at both ends of the i-th folding arm segment (21) is greater than the length of the (i+1)-th folding arm segment (21), and 1≤i<n.

4. A vibration method according to any one of claims 1 to 3, characterized in that, The slewing support (1) is also connected to a counterweight platform (4), the center of gravity of the counterweight platform (4) being biased toward the side of the slewing support (1) away from the folding arm.

5. A vibration method according to any one of claims 1 to 3, characterized in that, The first link (24) is hinged to the i-th articulated arm segment (21), and the second link (25) is hinged to the (i+1)-th articulated arm segment (21). The first link (24) and the second link (25) are also hinged together. The first link (24), the second link (25), the i-th articulated arm segment (21) and the (i+1)-th articulated arm segment (21) together form a four-bar linkage. The four-bar linkage is also provided with a telescopic rod (23). The telescopic rod (23) can extend and retract to drive two adjacent articulated arm segments (21) to swing around the corresponding rotary joint (22).

6. According to the vibration method of claim 1, the cross-sectional dimensions of the fixed pipe pile (5) are larger at the top and smaller at the bottom.

7. The vibration method according to claim 1, characterized in that, Step S2 also includes: changing the height h of the vibrating device (3) by rotating the rotary joint (22) to vibrate the concrete at different heights.

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