Stay cable maintenance device for super-large-span cable-stayed bridge

Abstract

The stay cable maintenance device comprises a main frame body, the top of the main frame body is fixedly connected with a motor, the output end of the motor is fixedly connected with a worm, the bottom of the worm penetrates through the outer wall of the main frame body and extends inwards, the main frame body is rotationally connected with a first guide wheel through a rotating rod, and the first guide wheel is connected with a second guide wheel through a rotating rod. A worm gear meshed with the worm fixedly sleeves the rotating rod, a first supporting plate is rotatably connected to the bottom of one end of the main frame body through a rotating shaft, a through opening is formed in the first supporting plate, a screw rod is rotatably connected into the through opening, and a first sliding block sleeves the screw rod in a threaded mode; and the bottom of the screw rod penetrates through the inner wall of the through hole and is fixedly connected with a knob. According to the stay cable maintenance mechanism, the transmission mechanism is arranged, so that the stay cable can be automatically maintained by the maintenance mechanism, and the maintenance efficiency of the stay cable is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable-stayed bridge maintenance, in particular to a cable-stayed cable maintenance device for a super-large-span cable-stayed bridge. Background Art

[0002] In a cable-stayed bridge, the cable replaces the multi-span elastically supported continuous beam of the pier, which can reduce the bending moment in the beam, reduce the building height, reduce the structural weight, and save materials. The general design life (or design reference period) of a cable-stayed bridge is 100 years, but the general design service life of the cable is only 25 to 30 years.

[0003] Cables are important force-bearing and load-transmitting components of cable-stayed bridges. Long-term exposure to the air, sun and rain will easily lead to varying degrees of cracking and dirt on the cable surface. The actual situation shows that most cables of cable-stayed bridges cannot reach their designed service life and need to be replaced in advance, resulting in considerable economic costs. Therefore, cable health monitoring is crucial to the safe use of cable-stayed bridges.

[0004] However, the existing cable-stayed bridge cable maintenance mechanism is relatively simple, and the maintenance mechanism cannot quickly and automatically maintain the cable, thereby affecting the maintenance efficiency of the maintenance mechanism. Utility Model Content

[0005] The utility model aims to solve the problem that the maintenance mechanism of the cable-stayed bridge in the prior art is relatively simple and the maintenance mechanism cannot quickly and automatically maintain the cable-stayed bridge, and proposes a cable-stayed maintenance device for a super-large span cable-stayed bridge.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The worm gear of the embodiment of the present invention is fixedly connected to the first support plate of the present invention, and the worm gear of the embodiment of the present invention is fixedly connected to the first support plate of the present invention.

[0008] Preferably, the first guide wheel and the second guide wheel are both provided with guide grooves, and a grinding block is fixedly embedded in the guide grooves.

[0009] Preferably, a torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively against the first support plate and the main frame.

[0010] Preferably, the bottom of the first support plate is rotatably connected to an arc-shaped insertion rod via a pin, and the knob is surrounded by a plurality of slots corresponding to the arc-shaped insertion rod.

[0011] Preferably, a plurality of steel balls are slidably connected in the sliding opening, and the edges of the steel balls are in contact with the sliding rod.

[0012] Preferably, the clamping mechanism includes a guide rod, one end of the guide rod is fixedly connected to a limiting block inside the main frame, one end of the guide rod is fixedly connected to an L-shaped clamping rod, a clamping groove corresponding to the L-shaped clamping rod is provided on the second support plate, a spring is sleeved on the guide rod, and both ends of the spring are fixedly connected to the main frame and the L-shaped clamping rod respectively.

[0013] Beneficial effects:

[0014] 1. Pass the inclined cable between the first guide wheel and the second guide wheel, and then fix the second support plate with the clamping mechanism, and then turn the knob to drive the screw to rotate, and adjust the distance between the first guide wheel and the second guide wheel through the first slider and the second slider, and then start the motor to drive the worm to rotate, and through the meshing action between the worm and the worm wheel, drive the first guide wheel and the second guide wheel to rotate, and perform rust removal or painting operations on the inclined cable. In the utility model, through the setting of the transmission mechanism, the maintenance mechanism can automatically maintain the inclined cable, thereby effectively improving the maintenance efficiency of the inclined cable;

[0015] 2. The setting of the arc-shaped plug rod can facilitate the fixing of the knob. At the same time, the steel ball can reduce the friction between the slide rod and the second slide block. The grinding block can facilitate the rust removal of the inclined cable. At the same time, the spring can provide a certain elastic support for the L-shaped clamp rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a cable-stayed cable maintenance device for a super-long-span cable-stayed bridge proposed by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure at point A in .

[0018] In the figure: 1 main frame, 2 motor, 3 worm, 4 rotating rod, 5 first guide wheel, 6 worm wheel, 7 rotating shaft, 8 first support plate, 9 screw, 10 first slider, 11 knob, 12 second support plate, 13 sliding rod, 14 second slider, 15 transmission rod, 16 second guide wheel, 17 grinding block, 18 pin, 19 arc plug rod, 20 steel ball, 21 guide rod, 22 limit block, 23 L-type clamping rod, 24 spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-2 A cable maintenance device for a super-long-span cable-stayed bridge comprises a main frame 1, a motor 2 is fixedly connected to the top of the main frame 1, and is used to drive a worm 3 to rotate, a worm 3 is fixedly connected to the output end of the motor 2, and the bottom of the worm 3 penetrates the outer wall of the main frame 1 and extends inward, the main frame 1 is rotatably connected to a first guide wheel 5 through a rotating rod 4, and is used to paint or remove rust on the cable, and a worm wheel 6 meshing with the worm 3 is fixedly sleeved on the rotating rod 4, and is used to drive the rotating rod 4 to rotate;

[0021] In this embodiment, the bottom of one end of the main frame 1 is rotatably connected to a first support plate 8 through a rotating shaft 7, a through hole is provided on the first support plate 8, a torsion spring is sleeved on the rotating shaft 7, and the two ends of the torsion spring are respectively against the first support plate 8 and the main frame 1, and provide a certain torsion support for the first support plate 8, a screw rod 9 is rotatably connected in the through hole, a first slider 10 is threadedly sleeved on the screw rod 9, and is used to drive the transmission rod 15 to move up and down, the bottom of the screw rod 9 passes through the inner wall of the through hole and is fixedly connected to a knob 11, and is used to drive the screw 9 to rotate, the bottom of the first support plate 8 is rotatably connected to an arc plug rod 19 through a pin shaft 18, and a plurality of slots corresponding to the arc plug rod 19 are arranged around the knob 11, and are used to fix the knob 11;

[0022] In this embodiment, a second support plate 12 is provided on a side of the main frame 1 away from the first support plate 8, and a clamping mechanism corresponding to the second support plate 12 is slidably connected to the main frame 1, which is used to fix the second support plate 12, and the clamping mechanism includes a guide rod 21, one end of the guide rod 21 located in the main frame 1 is fixedly connected to the limited block 22, one end of the guide rod 21 is fixedly connected to an L-shaped clamping rod 23, and a clamping groove corresponding to the L-shaped clamping rod 23 is provided on the second support plate 12, and a spring 24 is sleeved on the guide rod 21, and the two ends of the spring 24 are respectively fixedly connected to the main frame 1 and the L-shaped clamping rod 23, so as to provide a certain elastic support for the L-shaped clamping rod 23;

[0023] In this embodiment, a sliding mouth is provided on the second support plate 12, and a plurality of steel balls 20 are slidably connected in the sliding mouth. The edges of the steel balls 20 are in contact with the sliding rod 13 to reduce the friction between the sliding rod 13 and the inner wall of the sliding mouth. The sliding rod 13 is fixedly connected in the sliding mouth, and a second slider 14 is slidably sleeved on the sliding rod 13. The first slider 10 and the second slider 14 are rotatably connected by a transmission rod 15. A second guide wheel 16 is fixedly sleeved on the transmission rod 15 for cooperating with the first guide wheel 5 to paint or remove rust on the inclined cable. Guide grooves are provided on the first guide wheel 5 and the second guide wheel 16, and a grinding block 17 is fixedly embedded in the guide groove.

[0024] In this embodiment, the inclined cable is passed between the first guide wheel 5 and the second guide wheel 16, and then the second support plate 12 is fixed by a clamping mechanism. Then, the knob 11 is turned to drive the screw 9 to rotate, and the distance between the first guide wheel 5 and the second guide wheel 16 is adjusted by the first slider 10 and the second slider 14. Then, the motor 2 is started to drive the worm 3 to rotate, and the first guide wheel 5 and the second guide wheel 16 are driven to rotate through the meshing action between the worm 3 and the worm wheel 6, so as to perform rust removal or painting operations on the inclined cable.

[0025] In this embodiment, through the setting of the transmission mechanism, the maintenance mechanism can automatically maintain the inclined cable, thereby effectively improving the maintenance efficiency of the inclined cable.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable-stayed maintenance device for a super-long-span cable-stayed bridge, comprising a main frame (1), characterized in that: The top of the main frame (1) is fixedly connected to a motor (2), the output end of the motor (2) is fixedly connected to a worm (3), the bottom of the worm (3) penetrates the outer wall of the main frame (1) and extends inwardly, the main frame (1) is rotatably connected to a first guide wheel (5) via a rotating rod (4), a worm wheel (6) meshing with the worm (3) is fixedly sleeved on the rotating rod (4), the bottom of one end of the main frame (1) is rotatably connected to a first support plate (8) via a rotating shaft (7), the first support plate (8) is provided with a through hole, a screw (9) is rotatably connected in the through hole, and a first slider (1) is threadedly sleeved on the screw (9). 0), the bottom of the screw rod (9) passes through the inner wall of the through hole and is fixedly connected with a knob (11), a second support plate (12) is provided on the side of the main frame (1) away from the first support plate (8), a clamping mechanism corresponding to the second support plate (12) is slidably connected on the main frame (1), a sliding opening is provided on the second support plate (12), a sliding rod (13) is fixedly connected in the sliding opening, a second slider (14) is slidably sleeved on the sliding rod (13), the first slider (10) and the second slider (14) are rotationally connected via a transmission rod (15), and a second guide wheel (16) is fixedly sleeved on the transmission rod (15).

2. The device for maintaining the cable-stayed bridge for a super-long-span cable-stayed bridge according to claim 1 is characterized in that: The first guide wheel (5) and the second guide wheel (16) are both provided with guide grooves, and a grinding block (17) is fixedly embedded in the guide grooves.

3. The device for maintaining the cable-stayed bridge for a super-long-span cable-stayed bridge according to claim 1 is characterized in that: The rotating shaft (7) is sleeved with a torsion spring, and two ends of the torsion spring are respectively against the first support plate (8) and the main frame (1).

4. The device for maintaining the cable-stayed bridge for a super-long-span cable-stayed bridge according to claim 1 is characterized in that: The bottom of the first support plate (8) is rotatably connected to an arc-shaped insertion rod (19) via a pin shaft (18), and a plurality of slots corresponding to the arc-shaped insertion rod (19) are arranged around the knob (11).

5. The device for maintaining the cable-stayed bridge for a super-long-span cable-stayed bridge according to claim 1 is characterized in that: A plurality of steel balls (20) are slidably connected in the sliding opening, and the edges of the steel balls (20) are in contact with the sliding rod (13).

6. The device for maintaining the cable-stayed bridge for a super-long-span cable-stayed bridge according to claim 1 is characterized in that: The clamping mechanism comprises a guide rod (21), one end of the guide rod (21) located in the main frame (1) is fixedly connected to a limit block (22), one end of the guide rod (21) is fixedly connected to an L-shaped clamping rod (23), the second support plate (12) is provided with a clamping groove corresponding to the L-shaped clamping rod (23), the guide rod (21) is sleeved with a spring (24), and the two ends of the spring (24) are respectively fixedly connected to the main frame (1) and the L-shaped clamping rod (23).

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