Large-torque ultra-low-speed rotating body power system

Abstract

The present application relates to bridge rotation construction technology field, disclose a kind of big torque ultra-low speed rotation power system, comprising: lower turntable, the upper turntable is provided at the top of lower turntable;Rotation assembly, including several trusses and several rotation parts, several The truss is equidistantly arranged in circumferential direction at the top of lower turntable, several The rotation part is respectively arranged on several trusses, rotation part is connected with the outer side wall of upper turntable for driving the rotation of upper turntable;Power component, including several power parts and several restraint devices, the power part is arranged on the truss and is transmissionally connected with the rotation part, the restraint device is arranged on the truss for restricting the movement of power part, rack ball head fixing device is provided on power part.The present application is simple, saves expense, can satisfy the characteristics of bridge rotation tonnage, low speed, and save construction space, facilitate movement, construction technology is simple, solve the problem of bridge rotation super-rotation angle, can be reused.

Description

Technical Field

[0001] This invention relates to the field of bridge rotation construction technology, and in particular to a high-torque, ultra-low-speed rotation power system. Background Technology

[0002] Bridge rotation construction technology is widely used in challenging sites such as those spanning deep valleys and rapids, and railway-highway interchanges, due to its advantages of convenient construction, safety, reliability, and minimal impact. Bridge rotation involves large tonnage and slow rotation speed, requiring a high-torque, ultra-low-speed power system. The traction system in the bridge horizontal rotation construction method is a key component, mainly composed of traction cables, reaction seats, and continuous jacks. A steel strand wrapped around the upper turntable is pre-embedded in the upper turntable structure as the traction cable. A reaction seat is prefabricated on the lower turntable for installing the continuous jacks, making the construction process complex. During bridge rotation, sufficient space must be reserved behind the continuous jacks to allow for the movement of the traction cable, occupying a significant amount of foundation pit space. After the rotation is completed, the traction cable is cast together with the pier structure and cannot be reused. This traction system can only achieve unidirectional rotation of the bridge. If over-rotation occurs during construction, effective adjustments are difficult.

[0003] Therefore, there is an urgent need for a high-torque, ultra-low-speed rotating power system to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a high-torque, ultra-low-speed rotating power system to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a high-torque ultra-low-speed rotating power system, comprising:

[0006] A lower turntable, with an upper turntable positioned at its top;

[0007] The rotating assembly includes several trusses and several rotating components. The several trusses are evenly spaced along the circumference at the top of the lower turntable, and the several rotating components are respectively disposed on the several trusses. The rotating components are connected to the outer wall of the upper turntable to drive the upper turntable to rotate.

[0008] The power assembly includes several power components and several constraint devices. The power components are mounted on the truss and are connected to the rotating component in a transmission manner. The constraint devices are mounted on the truss to constrain the movement of the power components. The power components are provided with rack and pinion ball joint fixing devices.

[0009] Preferably, a ratchet shaft positioning frame is fixedly connected to the truss, the rotating component includes a ratchet shaft rotatably connected to the ratchet shaft positioning frame, a sprocket is fixedly connected to the top end of the ratchet shaft, a ratchet is fixedly connected to the bottom end of the ratchet shaft, a plurality of chains are fixedly connected at equal intervals along the circumference on the outer side wall of the upper turntable, the sprocket meshes with the chains, and the ratchet is connected to the power component for transmission.

[0010] Preferably, the power component includes hydraulic jacks fixedly connected to both sides of the top of the truss. The telescopic ends of the hydraulic jacks are connected to transmission racks through the rack and pinion ball joint fixing device. The two transmission racks are respectively engaged with the ratchet. The transmission racks are slidably connected to the truss through the constraint device.

[0011] Preferably, the rack ball head fixing device includes a ball head connecting rod connector, the ball head connecting rod connector is connected to a ball head connecting rod outer ring through the ball head, and the ball head connecting rod connector, the ball head and the ball head connecting rod outer ring are connected by a stud, one end of the ball head connecting rod connector is connected to the hydraulic jack, and one end of the ball head connecting rod outer ring is connected to the transmission rack.

[0012] Preferably, the constraint device includes a rack constraint frame fixed to the top of the truss, the rack constraint frame having a circular hole in the middle, an isomorphic bearing inside the circular hole being connected to the ratchet shaft, and spring plates being provided on both sides of the rack constraint frame, the spring plates being in contact with the transmission rack.

[0013] Preferably, a displacement sensor is provided on the truss, and the displacement sensor is used to monitor the movement distance of the hydraulic jack.

[0014] Preferably, a plurality of reaction bolts are fixedly connected to the top of the lower turntable, and the truss is installed on the lower turntable by means of the reaction bolts.

[0015] Preferably, the two transmission racks are located on both sides of the ratchet.

[0016] Compared with the prior art, the present invention has the following advantages and technical effects:

[0017] This invention provides a high-torque, ultra-low-speed rotating power system. Several rotating components are circumferentially mounted on a lower turntable and distributed on the outer wall of an upper turntable. A power component controls the movement of these components, causing the upper turntable to rotate on the lower turntable. A rack and pinion ball joint fixing device prevents damage to the rotating mechanism caused by minor irregular movements during the bridge pier rotation due to rigid connections. A constraint device ensures stable control of the rotating components by the power component. This invention features simple equipment, cost-effectiveness, and can meet the characteristics of large tonnage and slow rotation speed in bridge rotation. Compared to conventional rotating traction systems, it requires less construction space, is easy to move, and has a simpler construction process. The device is detachable and can be rotated for installation, solving the problem of over-rotation angle. After rotation, it can be disassembled, is easy to move, and can be reused. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of the overall structure of the present invention;

[0020] Figure 2 This is a front view of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the rotational state of the rotating power system of the present invention;

[0022] Figure 4 This is a schematic diagram of the rack ball head fixing device of the present invention;

[0023] Figure 5 This is a schematic diagram of the constraint device structure of the present invention;

[0024] The components are as follows: 1. Sprocket; 2. Ratchet; 3. Ratchet shaft; 4. Ratchet shaft positioning bracket; 5. Transmission rack; 6. Hydraulic jack; 7. Rack ball head fixing device; 7-1. Ball head connecting rod connector; 7-2. Ball head connecting rod outer ring; 7-3. Ball head; 7-4. Stud; 8. Restraint device; 8-1. Bearing; 8-2. Spring plate; 8-3. Rack restraint bracket; 9. Hydraulic jack fixing bracket; 10. Displacement sensor; 11. Truss; 12. Reaction bolt; 13. Chain; 14. Upper turntable; 15. Lower turntable. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figures 1-5 This invention provides a high-torque, ultra-low-speed rotating power system, comprising:

[0028] The lower turntable 15 has an upper turntable 14 at its top.

[0029] The rotating assembly includes several trusses 11 and several rotating components. The several trusses 11 are evenly spaced along the circumference at the top of the lower turntable 15. The several rotating components are respectively disposed on the several trusses 11. The rotating components are connected to the outer wall of the upper turntable 14 to drive the upper turntable 14 to rotate.

[0030] The power assembly includes several power components and several constraint devices 8. The power components are mounted on the truss 11 and are connected to the rotating component via transmission. The constraint devices 8 are mounted on the truss 11 to constrain the movement of the power components. The power components are equipped with rack and pinion ball joint fixing devices 7.

[0031] In a further optimized design, a ratchet shaft positioning frame 4 is fixedly connected to the truss 11. The rotating component includes a ratchet shaft 3 rotatably connected to the ratchet shaft positioning frame 4. A sprocket 1 is fixedly connected to the top of the ratchet shaft 3, and a ratchet 2 is fixedly connected to the bottom of the ratchet shaft 3. Several chains 13 are fixedly connected at equal intervals along the circumference on the outer wall of the upper turntable 14. The sprocket 1 meshes with the chain 13, and the ratchet 2 is connected to the power component for transmission.

[0032] In one embodiment of the present invention, a power component drives a ratchet 2 to rotate, and when the ratchet 2 rotates, it drives a connected sprocket 1 to rotate. When the sprocket 1 rotates, it drives an upper turntable 14 to rotate via a chain 13.

[0033] The scheme is further optimized. The power components include hydraulic jacks 6 fixedly connected to both sides of the top of the truss 11. The telescopic ends of the hydraulic jacks 6 are connected to transmission racks 5 through rack and pinion ball head fixing devices 7. The two transmission racks 5 are respectively engaged with ratchet 2. The transmission racks 5 are slidably connected to the truss 11 through restraint devices 8.

[0034] In one embodiment of the present invention, the hydraulic jack 6 is mounted on the truss 11 via the hydraulic jack fixing frame 9, and is used to drive the transmission rack 5 to move, thereby controlling the rotation of the ratchet 2.

[0035] Further optimizing the design, the rack and pinion ball joint fixing device 7 includes a ball joint connecting rod connector 7-1. The ball joint connecting rod connector 7-1 is connected to the ball joint connecting rod outer ring 7-2 via a ball joint 7-3. The ball joint connecting rod connector 7-1, the ball joint 7-3, and the ball joint connecting rod outer ring 7-2 are connected by a stud 7-4. One end of the ball joint connecting rod connector 7-1 is connected to the hydraulic jack 6, and one end of the ball joint connecting rod outer ring 7-2 is connected to the transmission rack 5.

[0036] In one embodiment of the present invention, the transmission rack 5 and the hydraulic jack 6 are connected by a ball joint, which avoids damage to the rotating device caused by the slight irregular movement during the rotation of the bridge pier due to the use of a rigid connection.

[0037] Further optimization of the scheme: the constraint device 8 includes a rack constraint frame 8-3 fixedly attached to the top of the truss 11. A circular hole is provided in the middle of the rack constraint frame 8-3. The isomorphic bearing 8-1 inside the circular hole is connected to the ratchet shaft 3. Spring plates 8-2 are provided on both sides of the rack constraint frame 8-3. The spring plates 8-2 are in contact with the transmission rack 5.

[0038] In one embodiment of the present invention, the spring plate 8-2 is in contact with the transmission rack 5. When the hydraulic jack 6 pushes, the spring plate 8-2 presses down on the transmission rack 5 and pushes the ratchet 2 to rotate counterclockwise. When the hydraulic jack 6 retracts, the transmission rack 5 pushes the spring plate 8-2 outward to deform and prevent the ratchet 2 from reversing.

[0039] To further optimize the design, a displacement sensor 10 is installed on the truss 11. The displacement sensor 10 is used to monitor the movement distance of the hydraulic jack 6.

[0040] In one embodiment of the present invention, the movement data of the piston of the hydraulic jack 6 is measured by a displacement sensor 10.

[0041] The scheme is further optimized by fixing several reaction bolts 12 to the top of the lower turntable 15, and the truss 11 is installed on the lower turntable 15 through the reaction bolts 12.

[0042] In one embodiment of the present invention, except for the reaction bolts 12 pre-embedded in the lower turntable 15 which cannot be reused, all other components can be removed after the rotation construction is completed for reuse.

[0043] The scheme was further optimized so that the two transmission racks 5 are located on both sides of the ratchet 2.

[0044] In one embodiment of the present invention, two transmission racks 5 are located on both sides of the ratchet 2 and mesh with the ratchet 2.

[0045] This invention provides a high-torque, ultra-low-speed rotating power system. The truss 11 is mounted on the lower turntable 15 by reaction bolts 12 and secured with nuts. The transmission rack 5 and hydraulic jacks 6 are connected by a rack and pinion ball joint fixing device 7. The two hydraulic jacks 6 are then symmetrically mounted on the hydraulic jack fixing frame 9. The transmission rack 5 and ratchet 2 are stably contacted by the spring plate 8-2 in the constraint device 8. The sprocket 1 and ratchet 2 are mounted on the ratchet shaft positioning frame 4 through the ratchet shaft 3. The sprocket 1 meshes with the chain 13 fixed on the upper turntable 14.

[0046] In this example, the rotation direction is clockwise. During the rotation process, two hydraulic jacks 6 work in coordination. The initial states of the two hydraulic jacks 6 are the piston at its full working stroke and the piston at its completely extended position, respectively. When one hydraulic jack 6 pushes the transmission rack 5 outward to the position of the displacement sensor 10, the piston begins to retract. At the same time, the piston of the other hydraulic jack 6 begins to push the transmission rack 5 outward. The two work synchronously to ensure the continuous rotation of this power system. The spring plate 8-2 is in contact with the transmission rack 5. When the hydraulic jack 6 pushes, the spring plate 8-2 presses down on the transmission rack 5, pushing the ratchet 2 to rotate counterclockwise. When the hydraulic jack 6 retracts, the transmission rack 5 pushes the spring plate 8-2 outward to deform and prevent the ratchet 2 from reversing. The ratchet 2 rotates counterclockwise, driving the ratchet shaft 3 and sprocket 1 to rotate. The sprocket 1 pulls the chain 13 and drives the upper turntable 14 to rotate, completing the rotation construction. If over-rotation occurs, the over-rotation angle can be corrected by turning the ratchet 2 around and reinstalling the hydraulic jack 6 and hydraulic jack fixing frame 9 onto the adjacent pre-embedded bolts.

[0047] After the rotation construction is completed, all components except the reaction bolts 12 embedded in the lower turntable can be removed and reused.

[0048] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0049] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A large torque ultra-low speed rotating body power system, characterized by, The utility model relates to a kind of rotary body assemblies, including: Lower turntable (15), upper turntable (14) is provided at the top of lower turntable (15); Rotary body assembly, including several trusses (11) and several rotary body pieces, several trusses (11) are equidistantly arranged in circumferential direction at the top of lower turntable (15), several rotary body pieces are respectively arranged on several trusses (11), and rotary body piece is connected with the outside wall of upper turntable (14) for driving upper turntable (14) rotation; Power assembly, including several power pieces and several constraint devices (8), power piece is arranged on truss (11) and is drivingly connected with rotary body piece, constraint device (8) is arranged on truss (11) for restricting power piece movement, and rack ball head fixing device (7) is arranged on power piece; Rack ball head fixing device (7) includes ball head connecting rod connecting piece (7-1), ball head connecting rod connecting piece (7-1) is connected with ball head connecting rod outer ring (7-2) by ball head (7-3), and ball head connecting rod connecting piece (7-1), ball head (7-3) and ball head connecting rod outer ring (7-2) are connected by peg (7-4), one end of ball head connecting rod connecting piece (7-1) is connected with hydraulic jack (6), and one end of ball head connecting rod outer ring (7-2) is connected with transmission rack (5).

2. A large torque ultra-low speed rotating body power system according to claim 1, characterized by: ​ 3. A large torque ultra-low speed rotating body power system according to claim 1, characterized by: The lower rotary disc (15) is fixedly connected with a plurality of counterforce bolts (12) at the top end, and the truss (11) is installed on the lower rotary disc (15) through the counterforce bolts (12).

4. A large torque ultra-low speed rotating body power system according to claim 1, characterized by: The two transmission racks (5) are respectively located on the two sides of the ratchet wheel (2).

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