Rotatable vibrator having foldable arm, and vibrating method

Abstract

The present invention relates to the technical field of concrete construction, and provides a rotatable vibrator having a foldable arm, and a vibrating method. The rotatable vibrator having a foldable arm comprises a vibration device, a rotary support base, and a foldable arm. One end of the rotary support base can be fixed at a construction site, and the other end of the rotary support base can rotate around an axis that is in the vertical direction. The foldable arm comprises n foldable arm segments which are connected head to tail, where n≥3. A first foldable arm segment is connected to the rotary support base, and the vibration device is arranged on an nth foldable arm segment. Two adjacent foldable arm segments are connected by means of a rotating joint, and the first foldable arm segment and the rotary support base are connected by means of a rotating joint. The axes of the rotating joints are in the horizontal direction. The present invention can solve the problems of poor vibration effect, high labor consumption, high difficulty of on-site management, and personal safety accidents being prone to occurring due to the fact that existing vibrating operations employ an operation mode in which vibration devices are held by construction workers.

Description

A reversible arm vibrator and a vibrating method Technical Field

[0001] The invention relates to the technical field of concrete construction, in particular to a reversible arm-type vibrator and a vibrating method. Background Art

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

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

[0004] Summary of the Invention

[0005] The purpose of the present invention is to solve the problems that the existing vibration operation adopts the operation mode of construction workers holding vibration equipment, resulting in poor vibration effect, high labor consumption, difficult on-site management, and easy to cause personal safety accidents. A revolving arm vibrator and a vibration method are provided.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A rotatable folding arm vibrator comprises a vibrating device, a slewing support seat and a folding arm;

[0008] One end of the slewing support can be fixed at the construction site; the other end of the slewing support can rotate around a vertical axis;

[0009] The folding arm comprises n folding arm segments connected end to end, where n≥3, the first folding arm segment is connected to the rotary support seat, and the vibration device is arranged on the nth folding arm segment; the two adjacent folding arm segments and the first folding arm segment and the rotary support seat are connected by a rotary joint, and the axis of the rotary joint is in the horizontal direction.

[0010] The vibration equipment refers to the existing technology, including but not limited to electric equipment, internal combustion engine equipment, pneumatic equipment, vibration rods, and vibration plates; the connection method between the vibration equipment and the folding arm includes but not limited to fixed connection, suspension, and six-degree-of-freedom joint connection.

[0011] The fixing methods of the slewing support seat include but are not limited to anchor connection, hydraulic support leg system, and bolt connection; the slewing support seat can realize the rotation function through various rotating mechanisms, such as motors, internal combustion engines, and rotary cylinders.

[0012] Rotary joints include but are not limited to joints with a single rotating shaft, joints with multiple rotating shafts arranged side by side, and multi-link mechanisms, as long as the two adjacent folding arm segments can swing relative to each other around a horizontal axis; rotary joints can adopt various driving methods, including but not limited to setting a device that can directly output rotational motion at the rotary joint, such as a servo motor and a motor, or setting a linkage mechanism between the folding arm segments, and directly pushing the folding arm segments to rotate around the rotary joint through the linkage mechanism.

[0013] The rotatable folding arm vibrator of the present invention comprises a swivel support base that can rotate in a vertical direction, and a folding arm comprising at least three swivel joints. By coordinating the rotation angle of the swivel support base and the rotation angles of the folding arm's swivel joints, the vibration equipment can change its azimuth angle α along the circumference of the swivel support base and its distance r along the radial direction of the swivel support base, respectively. By continuously changing α and r, the position of the vibration equipment can be continuously changed until the vibration operation of the concrete in the designated area is completed.

[0014] Taking the case where the number of folding arm segments n=3 as an example, the lengths of the first folding arm segment, the second folding arm segment, and the third folding arm segment are respectively set to L1, L2, and L3 (the folding arm segment closest to the slewing support seat is the first folding arm segment); the angles between the first folding arm segment, the second folding arm segment, and the third folding arm segment and the horizontal plane are respectively set to θ1, θ2, and θ3; then the radial distance r of the vibration equipment along the slewing support seat, and the height h of the vibration equipment can be expressed as: r=L1·cosθ1+L2·cosθ2+L3·cosθ3

[0015] h=L1·sinθ1+L2·sinθ2+L3·sinθ3

[0016] It can be seen that by changing any one of θ1, θ2, and θ3, the size of r and h can be changed; and when cosθ1=cosθ2=cosθ3=1, r reaches its maximum, which is equal to L1+L2+L3; when sinθ1=sinθ2=sinθ3=1, h reaches its maximum, which is equal to L1+L2+L3. That is, in theory, this scheme can enable the vibration equipment to reach any point in the spherical space with a radius of L1+L2+L3 (only the upper half of the spherical space needs to be used in actual projects). By adjusting the specific values ​​of L1+L2+L3 and the installation position of the slewing support seat, the spherical space can wrap the construction area, and the vibration equipment can vibrate the concrete at any point in the construction area.

[0017] It can also be seen from the above formula that in order for the vibration equipment to reach any point in a spherical space with a radius not exceeding the maximum length of the folding arm, the folding arm only needs to have two folding arm segments. In this solution, the folding arm has at least three folding arm segments. The extra third folding arm segment can be used to maintain the posture of the vibration equipment constant, for example, making θ3 preferably constant at 90°, thereby ensuring the vibration effect.

[0018] In summary, the swivel arm vibrator of this scheme can change the horizontal position and height of the vibration equipment through the rotation of the swivel support seat and the rotation of each rotating joint of the folding arm, so that the concrete in different positions can be vibrated. On the one hand, the posture and position of the vibrating equipment are jointly determined by the swivel support seat and the rotation angle of each rotating joint, eliminating the interference of personnel quality, and thus can obtain a better and more stable vibration effect; on the other hand, this scheme does not require the operator to walk around the construction area with the vibrating equipment in hand, so it can greatly reduce labor consumption, reduce the difficulty of on-site management, and avoid personal safety accidents in the construction area.

[0019] As a preferred solution of the present invention, the closer the folding arm segment is to the slewing support seat, the longer the length of the folding arm segment is.

[0020] For example, when n=3, the lengths of the first folding arm segment, the second folding arm segment, and the third folding arm segment are respectively set to L1, L2, and L3 (the folding arm segment closest to the slewing support seat is the first folding arm segment), then L1>L2>L3.

[0021] This solution makes the length of the folding arm segment closer to the rotary support seat longer, which can make the bending moment generated by the deadweight of the i+1th folding arm segment on the i-th folding arm segment show a trend of getting smaller and smaller as i increases, 1≤i<n. On the one hand, it can reduce the torque between different folding arm segments of the folding arm and between the folding arm and the rotary support seat, thereby reducing the load of the rotating joint at the corresponding position and improving the operating stability of this solution; on the other hand, it can also make the folding arm segments far away from the rotary support seat rotate more flexibly, thereby improving the efficiency of the folding arm mobile vibration equipment, and then improving the vibration efficiency.

[0022] As a preferred solution of the present invention, both ends of the i-th folding arm segment are provided with bending portions, and the bending portions are extended toward the same side of the folding arm segment along the height direction, and the rotating joint is connected to the end of the bending portion away from the folding arm segment; the spacing 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, 1≤i<n.

[0023] The bending portion extends toward the same side of the folding arm segment along the height direction, for example, the bending portions at both ends of the folding arm segment extend toward the bottom of the folding arm segment, or the bending portions at both ends of the folding arm segment extend toward the top of the folding arm segment; the bending portions at both ends of the same folding arm segment extend in the same direction, and the bending portions of different folding arm segments may extend in the same direction or different directions; it should be noted that the height direction here refers to the height direction of the folding arm segment itself, that is, the direction that is perpendicular to both the length direction of the folding arm segment and the axis direction of the rotation joint.

[0024] This solution sets bending parts at both ends of the folding arm segment, and sets a rotating joint on the bending part, so that the folding arm segment is roughly in a "[" shape rotated ninety degrees; when the folding arm is not in use, the i+1th folding arm segment can be stored in the area between the bending parts at both ends of the i-th folding arm segment, thereby reducing the space occupied by the folding arm and making the folding arm easier to transport and store.

[0025] As a preferred solution of the present invention, a counterweight platform is further connected to the slewing support seat, and the center of mass of the counterweight platform is biased toward the side of the slewing support seat away from the folding arm.

[0026] The folding arm is connected to one end of the slewing support seat and extends toward the end away from the slewing support seat, which will generate a corresponding overturning moment. The center of mass of the counterweight platform of this scheme is located on the side of the slewing support seat away from the folding arm, so it can generate a moment in the opposite direction of the overturning moment, thereby reducing the overturning effect of the folding arm on the slewing support seat, making the operation of the counterweight platform more stable and safer; the specific value of the mass of the counterweight platform can be set according to experience, so as to offset the overturning moment generated by the folding arm on the slewing support seat as much as possible.

[0027] As a preferred solution of the present invention, a first link is hinged on the i-th folding arm segment, a second link is hinged on the i+1-th folding arm segment, the first link and the second link are also hingedly connected, and the first link, the second link, the i-th folding arm segment and the i+1-th folding arm segment together constitute a four-bar linkage mechanism; a telescopic rod is also provided in the four-bar linkage mechanism, and the telescopic rod can drive the two adjacent folding arm segments to swing around the corresponding rotating joints when it is extended and retracted.

[0028] The specific structure of the four-bar linkage depends on practical requirements, such as quick-return characteristics and movable angles, and includes but is not limited to parallelogram mechanisms and double rocker mechanisms. The telescopic rod can be configured in various ways, such as with its ends hinged to the i-th folding arm segment and the first link, or to the first link and the second link. Specific structures of the telescopic rod include but are not limited to hydraulic, pneumatic, and electric telescopic rods.

[0029] This solution can provide power for the relative swing of two adjacent folding arm segments.

[0030] As a preferred solution of the present invention, a fixed pipe pile is fixed to the bottom of the slewing support seat, the length of the fixed pipe pile is arranged in the vertical direction, and the slewing support seat is fixed to the construction site through the fixed pipe pile.

[0031] This solution provides a specific method for fixing the slewing support seat at the construction site.

[0032] As a preferred solution 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 the fixed pipe piles may vary continuously or in steps along the height direction.

[0034] The fixed pipe piles of this solution are larger at the top and smaller at the bottom, making it easier to enter the pile hole during installation, thereby improving installation efficiency.

[0035] A vibration method comprising the following steps:

[0036] S1. Fixing a swivel arm vibrator of the present invention at a construction site;

[0037] S2. Change the azimuth angle α of the vibration device along the circumference of the rotation support seat by rotating the rotation support seat, thereby vibrating the concrete located at different positions of the rotation support seat; change the radial distance r of the vibration device along the rotation support seat by rotating the rotary joint, thereby vibrating the concrete located at different distances from the rotation support seat; complete the vibration operation in the designated construction area.

[0038] This solution uses the revolving arm vibrator of the present invention to vibrate the concrete in the construction area, replacing the original operation method of construction workers walking around the construction area with handheld vibration equipment, reducing the investment of construction workers, thereby reducing labor consumption, reducing the difficulty of on-site management, and avoiding personal safety accidents in the construction area; at the same time, since the interference of personnel quality is eliminated, a better and more stable vibration effect can be obtained.

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

[0040] This solution utilizes the characteristic that the folding arm can also change the height of the vibration equipment. When it is necessary to vibrate concrete at different heights, the height of the vibration equipment can be changed directly through the cooperation of the rotating joints of the folding arm, thereby eliminating the need to move the rotatable folding arm vibrator of this solution as a whole in the height direction, thereby achieving higher vibration efficiency.

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

[0042] A. constructing a pipe pile hole at the construction site; inserting a fixed pipe pile into the pipe pile hole, and installing the swivel arm vibrator on the fixed pipe pile;

[0043] B. Fixing a pipe pile mold on one side of the swivel arm vibrator, the pipe pile mold is used to form a new pipe pile hole, and the height of the pipe pile mold is greater than or equal to the height of the concrete layer to be constructed;

[0044] C. Casting the concrete layer: vibrate the concrete layer according to step S2 to complete the construction of the concrete layer;

[0045] D. removing the pipe pile mold and exposing the new pipe pile hole; moving the revolving arm vibrator 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 in the height direction, this solution reserves a pipe pile mold on one side of the swivel arm vibrator before pouring the next concrete layer, so that a new pipe pile hole can be formed at the height of the next concrete layer. The fixed pipe pile of the swivel arm vibrator is reinserted into the new pipe pile hole, thereby realizing the overall upward movement of the swivel arm vibrator in the height direction.

[0048] It can be seen that this solution does not require the fixed pipe piles to be raised (lengthened), which can simplify the construction process, improve construction efficiency, and avoid the risk of structural instability caused by the fixed pipe piles being too high (too long); at the same time, it can also reduce 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 swivel arm vibrator of this solution can change the horizontal position and height of the vibration equipment through the rotation of the swivel support base and the rotation of the various rotating joints of the folding arm, so that concrete in different positions can be vibrated. On the one hand, the posture and position of the vibrating equipment are jointly determined by the rotation angles of the swivel support base and the various rotating joints, eliminating the interference of personnel quality, and thus achieving a better and more stable vibration effect; on the other hand, this solution does not require operators to walk around the construction area with the vibrating equipment in hand, thus greatly reducing labor consumption, reducing the difficulty of on-site management, and avoiding personal safety accidents in the construction area.

[0051] 2. This solution uses the revolving arm vibrator of the present invention to vibrate the concrete in the construction area, replacing the original operation method of construction workers walking around the construction area with handheld vibration equipment, reducing the input of construction workers, thereby reducing labor consumption, reducing the difficulty of on-site management, and avoiding personal safety accidents in the construction area; at the same time, since the interference of personnel quality is eliminated, a better and more stable vibration effect can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] FIG1 is a side structural schematic diagram of a reversible arm vibrator according to the present invention;

[0053] FIG2 is a schematic diagram of a partially enlarged structure of point Ⅰ in FIG1;

[0054] FIG3 is a second side structural schematic diagram of a reversible arm vibrator of the present invention;

[0055] FIG4 is a third side structural schematic diagram of a reversible arm vibrator of the present invention;

[0056] FIG5 is a side structural schematic diagram of a reversible arm vibrator of the present invention;

[0057] FIG6 is a side view of the structure of the folding arm segment;

[0058] FIG7 is a schematic cross-sectional view of the structure of section AA in FIG6;

[0059] FIG8 is a construction diagram of a vibrating method of the present invention when constructing a pipe pile hole in step A;

[0060] FIG9 is a schematic diagram of a construction method of the present invention in step C;

[0061] 10 is a schematic diagram of a construction method of the present invention in step D;

[0062] FIG11 is a schematic diagram of a partially enlarged structure of point II in FIG8;

[0063] FIG12 is a schematic diagram of a partially enlarged structure of a revolvable arm vibrator at a vibration device of 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 ear; 4-counterweight platform; 41-counterweight block; 5-fixed pipe pile; 6-pipe pile mold; 7-concrete layer; 8-screw jack. DETAILED DESCRIPTION

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

[0066] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present 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 only used to explain the present invention and are not intended to limit the present invention.

[0067] In the following descriptions of specific embodiments, terms indicating orientations or positional relationships, such as "upper," "lower," "left," "right," "center," "inner," and "outer," are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the device / apparatus is typically placed during use. These terms are intended solely to facilitate description or simplify the description of the specific embodiments, and to help technicians quickly understand the solutions. They 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, and are therefore not to be construed as limitations on the present invention.

[0068] The terms "horizontal", "vertical" and the like do not require the corresponding devices / components / elements to be absolutely horizontal or vertical or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in specific directions such as "horizontal" and "vertical", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

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

[0070] The terms "set", "install", "connected" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be welding, riveting, bolting, threaded connection and other commonly used connection means in this field. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two components.

[0071] Example 1

[0072] As shown in Figures 1 to 7 and 12, the present embodiment adopts a rotatable folding arm type vibrator, which includes a vibration device 3, a rotary support base 1 and a folding arm; one end of the rotary support base 1 can be fixed at the construction site; the other end of the rotary support base 1 can rotate around the vertical axis; the folding arm includes n folding arm segments 21 connected end to end, n≥3, the first folding arm segment 21 is connected to the rotary support base 1, and the vibration device 3 is arranged on the nth folding arm segment 21; the two adjacent folding arm segments 21 and the first folding arm segment 21 and the rotary support base 1 are connected by a rotary joint 22, and the axis of the rotary joint 22 is along the horizontal direction.

[0073] Specifically, the swivel support 1 of this embodiment is driven by a hydraulic motor, generating a high driving torque. The swivel support 1 can rotate through an angle greater than or equal to 360°. The specific dimensions of the swivel support 1 are designed based on actual load conditions and must be able to withstand the axial force, radial force, and overturning moment exerted by the folding arm on the swivel support 1. The folding arm of this embodiment comprises three end-to-end connected folding arm segments 21, which are referred to as the upper arm, middle arm, and lower arm, from right to left in Figure 3.

[0074] Furthermore, the closer the folding arm segment 21 is to the slewing support base 1, the longer it is; furthermore, the closer the folding arm segment 21 is to the slewing support base 1, the larger its cross-sectional area is. Specifically in this embodiment, as shown in FIG7 , the height and width of the folding arm segment 21 are H and W, respectively, wherein 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 lower arm are H280mm×W220mm; the length of the upper arm L1 = 8080mm, the length of the middle arm L2 = 5665mm, and the length of the lower arm L3 = 4758mm.

[0075] As shown in Figures 4 and 5, let the angles between the upper arm, middle arm, and lower arm and the horizontal plane be θ1, θ2, and θ3 respectively; then the radial distance r of the vibration device 3 along the rotary support base 1, and the height h of the vibration device 3 can be expressed as: r = L1·cosθ1+L2·cosθ2+L3·cosθ3 h = L1·sinθ1+L2·sinθ2+L3·sinθ3

[0076] It can be seen that by changing any one of θ1, θ2, and θ3, the size of r and h can be changed; and when cosθ1=cosθ2=cosθ3=1, r reaches its maximum, which is equal to L1+L2+L3=18503mm, and when sinθ1=sinθ2=sinθ3=1, h reaches its maximum, which is equal to L1+L2+L3=18503mm. That is, in theory, this solution can enable the vibration equipment 3 to reach any point in a spherical space with a radius of 18503mm (only the upper half of the spherical space needs to be used in actual projects). By adjusting the specific values ​​of L1+L2+L3 and the installation position of the slewing support seat 1, the spherical space can wrap the construction area, so that the vibration equipment 3 can vibrate the concrete at any point in the construction area.

[0077] Furthermore, a storage space is provided on the i-th folding arm segment 21, the size of which is larger than that of the i+1-th folding arm segment 21, and the i+1-th folding arm segment 21 can be rotated into the storage space, 1≤i<n. Both ends of the i-th folding arm segment 21 are provided with a bending portion, and the bending portions are both extended toward the same side of the folding arm segment 21 along the height direction, and the rotating 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, 1≤i<n. For this embodiment, as shown in Figure 6, both ends of the upper arm and the middle arm are provided with bending portions, and both extend downward, so that the overall shape of the upper arm is a "[" shape rotated ninety degrees clockwise, and the two sides are used to set the rotating joint 22 respectively, and the area between the two bending portions of the upper arm can be used as the storage space of the middle arm; similarly, the overall shape of the middle arm is a "[" shape rotated ninety degrees clockwise, and the two sides are used to set the rotating joint 22 respectively, and the area between the two bending portions of the middle arm can be used as the storage space of the forearm; when the folded arm needs to be stored, 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 folded arm is only equivalent to the upper arm.

[0078] Furthermore, a counterweight platform 4 is connected to the slewing support base 1, with its center of mass offset toward the side of the slewing support base 1 away from the folding arm. As shown in Figure 1, the counterweight platform 4 of this embodiment is fixedly connected to the side of the slewing support base 1 away from the folding arm via a triangular bracket. The platform includes a plurality of counterweight blocks 41 arranged in an overlapping manner. The number of counterweight blocks 41 can be adjusted according to actual conditions. The counterweight blocks 41 include, but are not limited to, cement blocks and metal blocks.

[0079] Furthermore, a telescopic rod 23 is provided between two adjacent folding arm segments 21, and both ends of the telescopic rod 23 are respectively connected to the folding arm segments 21 on the corresponding side. The telescopic rod 23 can drive the two adjacent folding arm segments 21 to swing around the corresponding rotary joint 22 when it is extended and retracted. Specifically, as shown in FIG2 , 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 end of the first link 24 and the movable end of the second link 25 are also hingedly connected, and all the hinge joint axes are in 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 angle between the upper arm and the middle arm can be increased or decreased by extension and contraction.

[0080] Furthermore, a fixed pipe pile 5 is fixed to the bottom of the slewing support base 1. The length of the fixed pipe pile 5 is in the vertical direction. The slewing support base 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 base 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 base 1. The first flange and the second flange are connected by bolts, thereby realizing a detachable connection between the slewing support base 1 and the fixed pipe pile 5.

[0081] Furthermore, the cross-sectional dimensions of the fixed pipe pile 5 are larger at the top and smaller at the bottom. Specifically, the cross-sectional dimensions of the fixed pipe pile 5 of this embodiment gradually decrease from top to bottom, i.e., the sidewalls of the fixed pipe pile 5 have a taper. This not only makes it easier to insert the fixed pipe pile 5 into the pile hole during insertion, but also has a certain centering effect, thereby ensuring the coaxiality of the fixed pipe pile 5 and the pile hole, and improving construction accuracy.

[0082] Furthermore, as shown in Figure 12, the vibration device 3 of 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 the 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.

[0083] Furthermore, as shown in Figure 12, the mounting bracket 31 is suspended below the forearm by a lifting ear 32 provided on the top thereof; and the lifting ear 32 has a mounting hole with an axis along the horizontal direction, and the lifting ear 32 is rotatably connected to the forearm through the mounting hole, so that the mounting bracket 31 can swing relative to the forearm around an axis parallel to the horizontal direction; when the mounting bracket 31 is swung to one side of the axis of the mounting hole, for example, the right side, the gravity of the mounting bracket 31 itself 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 scheme has the function of automatic self-centering, and the electric vibrator 30 connected to the mounting bracket 31 can maintain a vertical posture, thereby ensuring the vibration effect.

[0084] Furthermore, the mounting bracket 31 and the lifting ear 32 are connected by a second rotary joint 22. The axis of the second rotary joint 22 is in the vertical direction and the rotatable angle is greater than or equal to 360°, so that the mounting bracket 31 can rotate freely around the vertical axis, thereby freely adjusting the vibration angle.

[0085] Example 2

[0086] As shown in FIG4 to FIG5 and FIG8 to FIG11, a vibration method used in this embodiment includes the following steps:

[0087] S1. Fixing the swivel arm vibrator of Example 1 at the construction site;

[0088] S2. Change the azimuth angle α of the vibration device 3 along the circumference of the rotation support base 1 by rotating the rotation support base 1, so as to vibrate the concrete located at different positions of the rotation support base 1; change the radial distance r of the vibration device 3 along the rotation support base 1 by rotating the rotary joint 22, so as to vibrate the concrete located at different distances from the rotation support base 1; complete the vibration operation in the designated construction area.

[0089] 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 distance of 18503 mm from the connection point between the slewing support 1 and the folding arm in the radial direction of the slewing support 1, θ1 = θ2 = θ3 = 0°.

[0090] Methods for adjusting α and r include but are not limited to:

[0091] Solution 1: Make α monotonically increase or decrease continuously, and at the same time make r monotonically increase from the minimum value or monotonically decrease from the maximum value, so that the vibrating equipment forms a spiral path.

[0092] Option 2: Make α monotonically increase or decrease in a step-by-step manner, and every time α increases or decreases to a new value, r is monotonically increased from the minimum value to the maximum value, or monotonically decreased from the maximum value to the minimum value and then increases or decreases toward the next value, so that the vibrating equipment forms a radial path with the rotary support seat 1 as the center.

[0093] Option 3: Make r increase or decrease monotonically in a step-by-step manner, and each time r increases or decreases to a new value, α increases or decreases by at least 360° before increasing or decreasing to the next value, so that the vibrating equipment forms a concentric circular path with the rotary support seat 1 as the center.

[0094] Furthermore, step S2 also includes: changing the height h of the vibration device 3 by rotating the rotary joint 22, thereby vibrating concrete at different heights.

[0095] For example, if it is necessary to vibrate the concrete at a position 18503 mm higher than the connection point between the slewing support seat 1 and the folding arm, θ1 = θ2 = θ3 = 90° can be used.

[0096] Furthermore, when it is necessary to construct multiple concrete layers 7 in sequence from bottom to top along the height direction, the following steps are also included:

[0097] A. constructing a pipe pile hole at the construction site; inserting a fixed pipe pile 5 into the pipe pile hole, and installing the reversible arm vibrator on the fixed pipe pile 5;

[0098] B. Fixing a pipe pile mold 6 on one side of the revolving arm vibrator, the pipe pile mold 6 is used to form a new pipe pile hole, and the height of the pipe pile mold 6 is greater than or equal to the height of the concrete layer 7 to be constructed;

[0099] C. Casting the concrete layer 7: vibrating the concrete layer 7 according to step S2 to complete the construction of the concrete layer 7;

[0100] D. Remove the pipe pile mold 6 and expose the new pipe pile hole; move the revolving arm vibrator and the fixed pipe pile 5 from the original pipe pile hole to the new pipe pile hole;

[0101] E. Repeat steps B to D until the construction of each concrete layer 7 within the specified height is completed.

[0102] Taking the pouring of three layers of concrete 7 as an example, which are named as the first layer of concrete, the second layer of concrete, and the third layer of concrete from bottom to top, the specific construction steps of this solution are as follows:

[0103] Step 1: As shown in Figures 8 and 11, pour the first layer of concrete. Before pouring, set the pipe pile mold 6 at the predetermined installation position of the revolving arm vibrator to form the pipe pile hole. After the concrete layer 7 is solidified, use the screw jack 8 to loosen the pipe pile mold 6. Lift and remove the pipe pile mold 6 to expose the pipe pile hole, and insert the fixed pipe pile 5 of the revolving arm vibrator into the pipe pile hole.

[0104] Step 2: As shown in FIG9 , a pipe pile mold 6 is provided on one side of the revolving arm vibrator. In this embodiment, the pipe pile mold 6 is provided 2 m away from the revolving arm vibrator to avoid interfering with the operation of the revolving arm 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 construction concrete layer 7.

[0105] Step 3, also as shown in FIG9 , pour the second concrete layer 7; vibrate the second concrete layer 7 according to step S2; complete the construction of the second concrete layer 7; after the second concrete layer 7 is solidified, use the screw jack 8 to loosen the pipe pile mold 6; lift and remove the pipe pile mold 6 to expose a new pipe pile hole, i.e., the pipe pile hole on the right side of the figure, and move the swivel arm vibrator from the original pipe pile hole to the new pipe pile hole;

[0106] Step 4, as shown in Figure 10, a pipe pile mold 6 is set on one side of the revolving arm 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 construction concrete layer 7; specifically, the pipe pile mold 6 is set above the original pipe pile hole in step 3; before installing the pipe pile mold 6, the original pipe pile hole in step 3 is backfilled;

[0107] Step 5: Also as shown in FIG. 10 , pour the third concrete layer 7 ; vibrate the third concrete layer 7 according to step S2 ; and complete the construction of the third concrete layer 7 .

[0108] The above are only 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 in the scope of protection of the present invention.

Claims

1. A rotatable articulated boom vibrator, comprising a vibration device (3), characterized in that, It also includes a slewing support base (1) and a folding arm; One end of the slewing support base (1) can be fixed to the construction site; the other end of the slewing support base (1) can rotate around the axis in the vertical direction; 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 base (1), and the vibration device (3) is arranged on the nth folding arm segment (21); adjacent two folding arm segments (21) and between the first folding arm segment (21) and the slewing support base (1) are all connected by a rotary joint (22), and the axis of the rotary joint (22) is in the horizontal direction.

2. The rotatable boom type vibrating machine according to claim 1, characterized in that, The length of the folding arm segment (21) closer to the slewing support base (1) is longer.

3. The swingable boom type vibrator according to claim 2, wherein, Both ends of the ith folding arm segment (21) are provided with bending parts, and the bending parts all extend to the same side in the height direction of the folding arm segment (21). The rotary joint (22) is connected to the end of the bending part away from the folding arm segment (21); the distance between the bending parts at both ends of the ith folding arm segment (21) is greater than the length of the (i + 1)th folding arm segment (21), where 1≤i<n.

4. A rotatable boom type vibrator according to any one of claims 1 to 3, characterized in that, A counterweight platform (4) is also connected to the slewing support base (1), and the centroid of the counterweight platform (4) is biased towards the side of the slewing support base (1) away from the folding arm.

5. A foldable swing arm type vibrating machine according to any one of claims 1 to 3, characterized in that, A first connecting rod (24) is hinged on the ith folding arm segment (21), and a second connecting rod (25) is hinged on the (i + 1)th folding arm segment (21). The first connecting rod (24) and the second connecting rod (25) are also hinged to each other. The first connecting rod (24), the second connecting rod (25), the ith folding arm segment (21) and the (i + 1)th folding arm segment (21) together form a four-bar linkage mechanism; an expansion link (23) is also arranged in the four-bar linkage mechanism, and the telescopic movement of the expansion link (23) can drive adjacent two folding arm segments (21) to swing around the corresponding rotary joint (22).

6. A foldable swing arm type vibrating machine according to any one of claims 1 to 3, characterized in that, A fixed pipe pile (5) is fixed to the bottom of the slewing support base (1), and the length of the fixed pipe pile (5) is arranged in the vertical direction. The slewing support base (1) is fixed to the construction site through the fixed pipe pile (5).

7. According to a foldable boom type vibrator as claimed in claim 6, the cross-sectional dimension of the fixed pipe pile (5) is larger at the top and smaller at the bottom.

8. A vibration method, characterized in that, It includes the following steps: S1. Fix a foldable boom type vibrator as claimed in any one of claims 1 to 7 to the construction site; S2. By rotating the slewing support base (1), change the azimuth angle α of the vibration device (3) in the circumferential direction of the slewing support base (1), so as to vibrate the concrete at different azimuths of the slewing support base (1); by rotating the rotary joint (22), change the distance r of the vibration device (3) in the radial direction of the slewing support base (1), so as to vibrate the concrete at different distances from the slewing support base (1); complete the vibration operation of the specified construction area.

9. A vibrating method according to claim 8, characterized in that, In step S2, it further includes: changing the height h of the vibration device (3) by rotating the rotary joint (22), so as to vibrate the concrete at different heights.

10. A vibrating method according to any one of claims 8 to 9, characterized in that When it is necessary to construct multiple concrete layers (7) successively from bottom to top in the height direction, and a fixed pipe pile (5) is arranged at the bottom of the slewing support base (1), the following steps are further included: A. Construct a pipe pile hole at the construction site; insert the fixed pipe pile (5) at the pipe pile hole, and install the foldable swing arm vibrator on the fixed pipe pile (5); B. Fix a pipe pile mold (6) on one side of the foldable swing arm vibrator. The pipe pile mold (6) is used to form a new pipe pile hole, and 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 the concrete layer (7), vibrate the concrete layer (7) according to step S2, and complete the construction of the concrete layer (7); D. Remove the pipe pile mold (6) to expose the new pipe pile hole; move the foldable swing arm 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.

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