Motor-driven bridge flat-turning steel wire rope transmission structure

Abstract

The present application belongs to the technical field of bridge horizontal rotation construction, and particularly relates to a motor-driven bridge horizontal rotation steel wire rope transmission structure, which comprises a lower rotary disc, an upper rotary disc rotatably arranged at the top end of the lower rotary disc, at least one driving mechanism fixedly arranged at the top end of the lower rotary disc, the driving mechanism being arranged on the outer side of the upper rotary disc, and at least one traction rope mechanism fixedly wound around the outer side of the upper rotary disc through an anchoring mechanism, the traction rope mechanism being wound around the driving end of the driving mechanism in the following two ways: one traction rope mechanism is wound around the driving end of a plurality of driving mechanisms in sequence; and one traction rope mechanism is wound around the driving end of one driving mechanism. The power of the driving motor is applied to the rotary disc structure through the traction steel wire rope, so that the bidirectional controllable driving of the rotary disc structure is realized. The structure is compact, the space requirement of the rotary disc is reduced, and the shortcomings of the prior driving system, such as large space occupation, difficulty in reverse adjustment after over-rotation and non-reusable traction rope, are effectively overcome.

Description

Technical Field

[0001] This invention belongs to the field of bridge horizontal rotation construction technology, and particularly relates to a motor-driven steel wire rope transmission structure for bridge horizontal rotation. Background Technology

[0002] Horizontal bridge rotation construction is an effective construction solution for crossing complex transportation networks or deep valley environments. The structure and performance of its rotation drive system directly affect the cost, safety, and accuracy of the rotation construction. Currently, commonly used drive systems mainly consist of traditional steel strands and continuous jacks. This system has a large structural size, high space requirements, and the steel strands are mostly for single use; moreover, it lacks reverse rotation capability. This inevitably increases the spatial dimensions of the rotation pit or platform, increases the bridge span, and thus increases construction costs; at the same time, the lack of reverse rotation capability significantly increases the difficulty of precise positioning control during the rotation.

[0003] Therefore, it is necessary to design a motor-driven bridge horizontal rotation wire rope transmission structure to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a motor-driven bridge horizontal rotation steel wire rope transmission structure, which uses a traction steel wire rope to apply the power of the drive motor to the rotating structure, thereby achieving bidirectional controllable drive of the rotating structure.

[0005] To achieve the above objectives, the present invention provides the following solution: a motor-driven bridge horizontal rotation steel wire rope transmission structure, comprising: The lower turntable has an upper turntable that rotates at the top. At least one drive mechanism is fixedly mounted on the top of the lower turntable, and the drive mechanism is located on the outside of the upper turntable; At least one traction rope mechanism is fixedly wound around the outside of the upper turntable by an anchoring mechanism. The traction rope mechanism is wound around the drive end of the drive mechanism in one of the following two ways: one traction rope mechanism is wound around the drive end of multiple drive mechanisms in sequence; or one traction rope mechanism is wound around the drive end of one drive mechanism.

[0006] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided, wherein the driving mechanism includes a motor, the motor is fixedly connected to the top of the lower turntable by a plurality of first anchor bolts, the output end of the motor is fixedly connected to a rotating shaft, and the traction rope mechanism is wound on the rotating shaft.

[0007] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided, wherein the traction rope mechanism includes multiple steel wire ropes, and each end of the steel wire rope is fixedly connected to an elastic clamping part, and the steel wire rope is clamped to the anchoring mechanism through the elastic clamping part.

[0008] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided, wherein the elastic locking part includes a pressure head screw, the pressure head screw is fixedly connected to the end of the steel wire rope, a fixing nut is threadedly connected to one end of the pressure head screw near the steel wire rope, an adjusting nut is threadedly connected to the other end of the pressure head screw, and a preload spring is provided between the adjusting nut and the fixing nut.

[0009] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided. The anchoring mechanism includes an anchor plate, which is fixedly connected to the side wall of the upper turntable by a plurality of second anchor bolts. A panel is fixedly connected to the anchor plate, and a plurality of notches are provided on the panel. Each notch corresponds to a steel wire rope, and a fixing nut engages with the notch.

[0010] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided, wherein multiple ear plates are fixedly connected to the side wall of the panel, and a gap is left between two adjacent ear plates and they are located on both sides of the notch. A limiting pin is provided through the multiple ear plates, and the steel wire rope is located between the limiting pin and the anchor plate.

[0011] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided, wherein a gap is left between the rotating shaft and the upper turntable, and the size of the gap is 1-2 times the diameter of the steel wire rope.

[0012] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided, wherein the top end of the rotating shaft is higher than the bottom end of the upper turntable, and the distance of the higher end is not less than the safety distance of the steel wire rope.

[0013] According to the present invention, a motor-driven bridge horizontal rotation steel wire rope transmission structure is provided, wherein the safety distance is at least 10 cm longer than the winding length of the steel wire rope on the rotating shaft.

[0014] According to the present invention, in a motor-driven bridge horizontal rotation steel wire rope transmission structure, when one of the traction rope mechanisms is sequentially wound around the drive ends of multiple drive mechanisms, the maximum transmission force of the first drive mechanism is... The maximum force transmitted by the second drive mechanism is The maximum force transmitted by the third drive mechanism is And so on; When one of the aforementioned traction rope mechanisms is wound around the drive end of the aforementioned drive mechanism, the maximum force transmitted by the drive mechanism is: ; in, is the tension at the preload end of the traction rope mechanism; n is the number of turns of the wire rope wound around the shaft; The coefficient of friction between the wire rope and the shaft.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects: This invention has the advantages of clear force transmission path, simple structure, strong adaptability, and reusability. By replacing the bulky continuous jack + steel strand + reaction seat traction system with a motor-driven bridge horizontal rotation wire rope transmission structure, it effectively reduces the space required for rotation traction operation, saving construction costs and enabling bidirectional rotation. This reduces the difficulty of rotation positioning control and improves rotation positioning accuracy and efficiency. Attached Figure Description

[0016] 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 introduced 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.

[0017] Figure 1 This is a top view of the present invention; Figure 2 This is a front view of a traction rope mechanism sequentially wound around the drive ends of multiple drive mechanisms in this invention. Figure 3 This is an isometric view of a traction rope mechanism sequentially wound around the drive ends of multiple drive mechanisms in this invention. Figure 4 This is a front view of a traction rope mechanism wound around the drive end of a drive mechanism in this invention; Figure 5 This is an isometric view of a traction rope mechanism wound around the drive end of a drive mechanism in this invention. Figure 6 This is a schematic diagram of the anchoring mechanism in this invention; Figure 7 This is a schematic diagram of the driving mechanism in this invention.

[0018] The components are as follows: 1. Lower turntable; 2. Upper turntable; 3. Drive mechanism; 31. Rotating shaft; 32. Motor; 33. First anchor bolt; 4. Traction rope mechanism; 41. Wire rope; 42. Fixing nut; 43. Pressure head screw; 44. Preload spring; 45. Adjusting nut; 5. Anchoring mechanism; 51. Anchor plate; 52. Second anchor bolt; 53. Panel; 54. Ear plate; 55. Limit pin. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] Reference Figures 1 to 7 As shown, the present invention provides a motor-driven bridge horizontal rotation wire rope transmission structure, comprising: The lower turntable 1 has an upper turntable 2 that rotates at the top. At least one drive mechanism 3 is fixedly installed at the top of the lower turntable 1, and the drive mechanism 3 is installed on the outside of the upper turntable 2; At least one traction rope mechanism 4 is fixedly wound around the outside of the upper turntable 2 by an anchoring mechanism 5. The traction rope mechanism 4 is wound around the drive end of the drive mechanism 3 in the following two ways: one traction rope mechanism 4 is wound around the drive ends of multiple drive mechanisms 3 in sequence; one traction rope mechanism 4 is wound around the drive end of one drive mechanism 3.

[0022] Furthermore, the drive mechanism 3 includes a motor 32, which is fixedly connected to the top of the lower turntable 1 by a plurality of first anchor bolts 33. The output end of the motor 32 is fixedly connected to a rotating shaft 31, and the traction rope mechanism 4 is wound around the rotating shaft 31.

[0023] Furthermore, the traction rope mechanism 4 includes multiple steel wire ropes 41, with elastic locking parts fixedly connected to both ends of each steel wire rope 41, and the steel wire rope 41 is locked to the anchoring mechanism 5 through the elastic locking parts.

[0024] Furthermore, the elastic locking part includes a pressure head screw 43, which is fixedly connected to the end of the wire rope 41. A fixing nut 42 is threadedly connected to one end of the pressure head screw 43 near the wire rope 41, and an adjusting nut 45 is threadedly connected to the other end of the pressure head screw 43. A preload spring 44 is provided between the adjusting nut 45 and the fixing nut 42.

[0025] There is no relative sliding between the wire rope 41, the rotating shaft 31 and the upper turntable 2.

[0026] Furthermore, the anchoring mechanism 5 includes an anchor plate 51, which is fixedly connected to the side wall of the upper turntable 2 by a plurality of second anchor bolts 52. A panel 53 is fixedly connected to the anchor plate 51, and a plurality of notches are provided on the panel 53, which correspond one-to-one with the wire rope 41. The fixing nut 42 is engaged with the notch.

[0027] Furthermore, multiple ear plates 54 are fixedly connected to the side wall of the panel 53. There is a gap between two adjacent ear plates 54 and they are located on both sides of the notch. A limiting pin 55 is passed through the multiple ear plates 54. The wire rope 41 is located between the limiting pin 55 and the anchor plate 51.

[0028] One traction rope mechanism 4 needs to be fixed to the upper turntable 2 with two anchoring mechanisms 5. One anchoring mechanism 5 is the fixed end (rear end) of the traction rope mechanism 4, and the other anchoring mechanism 5 is the pre-tensioning end (front end) of the traction rope mechanism 4. After the wire rope 41 of the traction rope mechanism 4 is locked in the notch of the panel 53, the limiting pin 55 passes through the ear plate 54 to constrain the wire rope 41. During the rotation, the internal fixing nut 42 is locked on the fixed end panel 53 to fix the wire rope 41. At the pre-tensioning end, the pre-tensioning spring 44 presses against the pre-tensioning end panel 53 to apply pre-tensioning force to the wire rope 41. When rotating in the opposite direction, the fixed end and the pre-tensioning end are reversed.

[0029] Furthermore, a gap is left between the rotating shaft 31 and the upper turntable 2, the size of which is 1-2 times the diameter of the wire rope 41.

[0030] Furthermore, the top of the rotating shaft 31 is higher than the bottom of the upper turntable 2, and the distance of the higher position is not less than the safety distance of the wire rope 41.

[0031] Furthermore, the safety distance is that the length of the wire rope 41 wrapped around the shaft 31 is increased by at least 10cm.

[0032] Furthermore, when a traction rope mechanism 4 is sequentially wound around the drive ends of multiple drive mechanisms 3, the maximum force transmitted by the first drive mechanism 3 is The maximum force transmitted by the second drive mechanism 3 is The maximum force transmitted by the third drive mechanism 3 is And so on; When a traction rope mechanism 4 is wound around the drive end of a drive mechanism 3, the maximum force transmitted by the drive mechanism 3 is: ; in, n is the tension at the pre-tension end of the traction rope mechanism 4; n is the number of turns of the wire rope 41 wound around the rotating shaft 31. The coefficient of friction between the wire rope 41 and the shaft 31.

[0033] First, the drive mechanism 3 is fixed to the lower turntable 1 using the first anchor bolt 33, so that the rotating shaft 31 is located on the outside of the upper turntable 2. During installation, a gap of 1-2 times the diameter of the wire rope 41 is maintained between the rotating shaft 31 and the outer wall of the upper turntable 2 to prevent the rotating shaft 31 from rubbing against the upper turntable 2 during rotation. At the same time, the top surface of the rotating shaft 31 should be higher than the bottom surface of the upper turntable 2, and the vertical distance between the two should not be less than the required winding length of the wire rope 41 + 10cm safety distance to ensure sufficient winding space for the wire rope 41.

[0034] The end of the wire rope 41 is inserted into the pressure head screw 43 and anchored by compression. The fixed end is secured to the panel 53 by the fixing nut 42, achieving rigid fixation of the wire rope 41. The pre-tightening end applies a pre-tightening force F0 to the wire rope 41 by adjusting the adjusting nut 45, ensuring that the wire rope 41 fits tightly against the rotating shaft 31.

[0035] During rotation, motor 32 is activated, and traction is transmitted through the friction between shaft 31 and wire rope 41 to drive the rotating structure. During reverse rotation, simply changing the rotation direction of motor 32 is sufficient to interchange the pre-tightening end and the fixed end of anchoring mechanism 5, and to achieve reverse rotation drive.

[0036] If over-rotation occurs during construction, the system can activate a bidirectional correction function. By adjusting nut 45 to release the spring pressure at the original pre-tightening end, and simultaneously tightening the adjusting nut 45 at the original fixed end, the roles of the anchoring mechanisms 5 at both ends are reversed, and then motor 32 starts in reverse. During this process, the system can automatically pre-tighten the reverse traction rope segment. After the rotation is completed, except for the first anchor bolt 33 and the second anchor bolt 52 embedded in the concrete, components such as motor 32, wire rope 41, pre-tightening spring 44, and panel 53 can be completely removed and transported to the next construction site for reuse.

[0037] 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.

[0038] 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 to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. A motor-driven bridge horizontal rotation steel wire rope transmission structure, characterized in that, include: The lower turntable (1) has an upper turntable (2) rotating at the top. At least one drive mechanism (3) is fixedly installed at the top of the lower turntable (1), and the drive mechanism (3) is installed on the outside of the upper turntable (2); At least one traction rope mechanism (4) is fixedly wrapped around the outside of the upper turntable (2) by an anchoring mechanism (5). The traction rope mechanism (4) is wrapped around the driving end of the driving mechanism (3) in the following two ways: one traction rope mechanism (4) is wrapped around the driving ends of multiple driving mechanisms (3) in sequence; one traction rope mechanism (4) is wrapped around the driving end of one driving mechanism (3).

2. The motor-driven bridge horizontal rotation wire rope transmission structure according to claim 1, characterized in that, The drive mechanism (3) includes a motor (32), which is fixedly connected to the top of the lower turntable (1) by a plurality of first anchor bolts (33). The output end of the motor (32) is fixedly connected to a rotating shaft (31), and the traction rope mechanism (4) is wound around the rotating shaft (31).

3. The motor-driven bridge horizontal rotation wire rope transmission structure according to claim 2, characterized in that, The traction rope mechanism (4) includes multiple steel wire ropes (41), and each end of the steel wire rope (41) is fixedly connected to an elastic snap-fit ​​part. The steel wire rope (41) is snapped to the anchoring mechanism (5) through the elastic snap-fit ​​part.

4. The motor-driven bridge horizontal rotation wire rope transmission structure according to claim 3, characterized in that, The elastic locking part includes a pressure head screw (43), which is fixedly connected to the end of the wire rope (41). A fixing nut (42) is threadedly connected to one end of the pressure head screw (43) near the wire rope (41), and an adjusting nut (45) is threadedly connected to the other end of the pressure head screw (43). A preload spring (44) is provided between the adjusting nut (45) and the fixing nut (42).

5. The motor-driven bridge horizontal rotation wire rope transmission structure according to claim 4, characterized in that, The anchoring mechanism (5) includes an anchor plate (51), which is fixedly connected to the side wall of the upper turntable (2) by a plurality of second anchor bolts (52). A panel (53) is fixedly connected to the anchor plate (51), and a plurality of notches are provided on the panel (53). The notches correspond one-to-one with the wire rope (41), and the fixing nut (42) engages with the notch.

6. The motor-driven bridge horizontal rotation wire rope transmission structure according to claim 5, characterized in that, The side wall of the panel (53) is fixedly connected with a plurality of ear plates (54), with a gap between two adjacent ear plates (54) and located on both sides of the notch. A limiting pin (55) is passed through the plurality of ear plates (54), and the wire rope (41) is located between the limiting pin (55) and the anchor plate (51).

7. The motor-driven bridge horizontal rotation wire rope transmission structure according to claim 3, characterized in that, A gap is left between the rotating shaft (31) and the upper turntable (2), and the size of the gap is 1-2 times the diameter of the wire rope (41).

8. The motor-driven bridge horizontal rotation wire rope transmission structure according to claim 3, characterized in that, The top of the rotating shaft (31) is higher than the bottom of the upper turntable (2), and the distance of the higher position is not less than the safe distance of the wire rope (41).

9. A motor-driven bridge horizontal rotation wire rope transmission structure according to claim 8, characterized in that, The safety distance is at least 10 cm longer than the length of the wire rope (41) wound on the shaft (31).

10. A motor-driven bridge horizontal rotation wire rope transmission structure according to claim 4, characterized in that, When one of the traction rope mechanisms (4) is sequentially wound around the drive ends of multiple drive mechanisms (3), the maximum force transmitted by the first drive mechanism (3) is The maximum force transmitted by the second drive mechanism (3) is The maximum force transmitted by the third drive mechanism (3) is And so on; When one of the traction rope mechanisms (4) is wound around the drive end of one of the drive mechanisms (3), the maximum force transmitted by the drive mechanism (3) is ; in, n is the tension at the pre-tension end of the traction rope mechanism (4); n is the number of turns of the wire rope (41) wound around the rotating shaft (31); is the coefficient of friction between the wire rope (41) and the shaft (31).

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