A negative pressure adsorption cable climbing device

Abstract

A negative pressure adsorption type cable climbing device comprises: a frame (1), and a climbing unit (K) composed of an upper roller (2), a synchronous pulley I (3), an upper suction cup (4), an upper wheel frame (5), an upper support seat (6), an upper pretensioner (7), a synchronous belt I (8), a lower pretensioner (9), a lower support seat (10), a lower wheel frame (11), a synchronous pulley II (12), a lower suction cup (13), a lower rotating shaft (14), a lower roller (15), a synchronous pulley III (16), a driving motor (17), a synchronous belt II (18), a synchronous pulley IV (19), and an upper rotating shaft (20). The present invention can be used as a moving carrier of equipment such as cable detection and maintenance, and solves the problems of high labor intensity, low safety, and poor adaptability of existing cable climbing devices in manual operations.

Description

Technical field:

[0001] The invention relates to a negative pressure adsorption type cable climbing device, which is mainly used for detecting and maintaining cables of a cable-stayed bridge and belongs to the field of engineering technology. Background technology:

[0002] A cable-stayed bridge is mainly composed of a bridge structure, piers, towers and cables. The cables, as an important component, are exposed to the environment for a long time and are subject to various types of corrosion. The surface of the cables is easily damaged. The cables are important load-bearing structures of cable-stayed bridges. Once damaged, the service life of the bridge will be affected and even the safety of the entire bridge will be endangered, causing immeasurable losses.

[0003] At present, the traditional cable-stayed bridge cable repair method is relatively backward, mainly relying on manual methods for inspection and maintenance. This method is difficult, has a high risk factor, is easily affected by factors such as weather, and has a long working cycle. Therefore, it is an inevitable requirement for a cable inspection device that can be automated, lightweight, and safe. Summary of the invention:

[0004] The purpose of the present invention is to propose a negative pressure adsorption type cable climbing device, which can be used as a moving carrier for cable detection, maintenance and other equipment to solve the problems of high labor intensity and low safety of manual operations and poor adaptability of existing cable climbing devices.

[0005] In order to achieve the purpose of the present invention, the following technical solutions are proposed:

[0006] The present invention comprises: a frame, and a climbing unit consisting of an upper roller, a synchronous pulley I, an upper suction cup, an upper wheel frame, an upper support seat, an upper pretensioner, a synchronous belt I, a lower pretensioner, a lower support seat, a lower wheel frame, a synchronous pulley II, a lower suction cup, a lower rotating shaft, a lower roller, a synchronous pulley III, a driving motor, a synchronous belt II, a synchronous pulley IV, and an upper rotating shaft, wherein the upper suction cup is fixed on the upper roller, the upper roller is fixed on the upper rotating shaft, the upper rotating shaft is arranged on the upper wheel frame, the upper wheel frame is arranged on the upper support seat through the upper pretensioner, and the upper support seat is fixed The lower suction cup is fixed on the lower roller, the lower roller is fixed on the lower rotating shaft, the lower rotating shaft is arranged on the lower wheel frame, the lower wheel frame is arranged on the lower supporting seat through the lower preloader, the lower supporting seat is fixed on the frame, the synchronous pulley I and the synchronous pulley IV are fixed on the upper rotating shaft, the synchronous pulley II is fixed on the lower rotating shaft, the driving motor is fixed on the frame, the synchronous pulley III is fixed on the output shaft of the driving motor, the synchronous belt I is arranged between the synchronous pulley I and the synchronous pulley II, and the synchronous belt II is arranged between the synchronous pulley III and the synchronous pulley IV.

[0007] The above-mentioned upper pretensioner and lower pretensioner are composed of a spring base, a connecting shaft, a spiral spring, bolts, a ratchet cover, and nuts. The connecting shaft is fixed on the spring base, the outer hook of the spiral spring is arranged on the notch of the spring base, the inner hook of the spiral spring is arranged on the notch of the ratchet cover, the ratchet cover is arranged on the connecting shaft, the ratchet cover and the connecting shaft are fixed by bolts and nuts, and at least three climbing units are arranged on the above-mentioned frame.

[0008] Features of the present invention:

[0009] The present invention uses at least three motors to drive synchronously, has a large climbing force, and is stable in operation. The suction cup negative pressure adsorption improves the adsorption force of the roller, and the preload force of the climbing device is adjustable, thereby improving the adaptability of the climbing device. The present invention has a simple structure, is easy to control, and is easy to implement. Description of the drawings:

[0010] Figure 1 The climbing unit K of the present invention is illustrated.

[0011] Figure 2 The overall structure of the present invention is illustrated.

[0012] Figure 3 yes Figure 2 Top view of the .

[0013] Figure 4 An exploded view of the pretensioner is shown.

[0014] 1. Frame; 2. Upper roller; 3. Synchronous pulley I; 4. Upper suction cup; 5. Upper wheel frame; 6. Upper support seat; 7. Upper pretensioner; 8. Synchronous belt I; 9. Lower pretensioner; 10. Lower support seat; 11. Lower wheel frame; 12. Synchronous pulley II; 13. Lower suction cup; 14. Lower shaft; 15. Lower roller; 16. Synchronous pulley III; 17. Driving motor; 18. Synchronous belt II; 19. Synchronous pulley IV; 20. Upper shaft; 21. Spring base; 22. Connecting shaft; 23. Volute spring; 24. Bolt; 25. Ratchet cover; 26. Nut; A. Cable; B. Output shaft; C. Inner hook of volute spring; D. Outer hook of volute spring; E. Notch of spring base; F. Notch of ratchet cover; K. Climbing unit. Specific implementation method:

[0015] The specific implementation of the present invention will be described below with reference to the accompanying drawings.

[0016] At least three climbing units K are arranged on the frame 1 of the present invention. In each climbing unit K, the upper suction cup 4 is fixed on the upper roller 2, the upper roller 2 is fixed on the upper shaft 20, the upper shaft 20 is arranged on the upper wheel frame 5, the upper wheel frame 5 is arranged on the upper support seat 6 through the upper preload 7, the upper support seat 6 is fixed on the frame 1, the lower suction cup 13 is fixed on the lower roller 15, the lower roller 15 is fixed on the lower shaft 14, the lower shaft 14 is arranged on the lower wheel frame 11, and the lower wheel frame 11 is arranged on the lower preload 9. It is placed on the lower support seat 10, the lower support seat 10 is fixed on the frame 1, the synchronous pulley I3 and the synchronous pulley IV19 are fixed on the upper rotating shaft 20, the synchronous pulley II12 is fixed on the lower rotating shaft 14, the driving motor 17 is fixed on the frame 1, the synchronous pulley III16 is fixed on the output shaft B of the driving motor 17, the synchronous belt I8 is arranged between the synchronous pulley I3 and the synchronous pulley II12, and the synchronous belt II18 is arranged between the synchronous pulley III16 and the synchronous pulley IV19.

[0017] The above-mentioned upper pretensioner 7 and lower pretensioner 9 are composed of a spring base 21, a connecting shaft 22, a spiral spring 23, a bolt 24, a ratchet cover 25, and a nut 26. The connecting shaft 22 is fixed on the spring base 21, the outer hook D of the spiral spring 23 is arranged on the notch E of the spring base 21, the inner hook C of the spiral spring 23 is arranged on the notch F of the ratchet cover 25, the ratchet cover 25 is arranged on the connecting shaft 22, the ratchet cover 25 and the connecting shaft 22 are fixed by bolts 24 and nuts 26, and at least three climbing units K are arranged on the above-mentioned frame 1.

[0018] When the present invention climbs the cable, the ratchet cover 25 is first rotated clockwise, and the outer hook D of the spiral spring 23 will be fixed on the notch E of the spring base 21, and the inner hook C of the spiral spring 23 will rotate with the ratchet cover 25. The torque generated will cause the spiral spring 23 to undergo elastic bending deformation and produce twisting, and then the bolt 24 is fixed to the ratchet cover 25 and the connecting shaft 22 through the nut 26. The spiral spring 23 will remain in a twisted state to provide a pre-tightening force, so that the present invention can be pressed on the cable A, and the output shaft B of the drive motor 17 drives the upper shaft 20 to rotate through the synchronous pulley III16, the synchronous belt II18, and the synchronous pulley IV19, thereby driving the upper roller 2 to rotate, and the upper shaft 20 drives the lower shaft 14 to rotate and the lower roller 15 to rotate through the synchronous pulley I3, the synchronous belt I8, and the synchronous pulley II12, thereby driving the present invention to move along the cable A. When the present invention needs to be removed, the drive motor 17 is first turned off, the bolt 24 is then pulled out, and the ratchet cover 25 is rotated counterclockwise, the volute spring 23 is released from the twisted state, the pre-tightening force disappears, and then the present invention can be removed.

Claims

1. A negative pressure adsorption cable climbing device, comprising: A frame (1), and a climbing unit (K) consisting of an upper roller (2), a synchronous pulley I (3), an upper suction cup (4), an upper wheel frame (5), an upper support seat (6), an upper preload (7), a synchronous belt I (8), a lower preload (9), a lower support seat (10), a lower wheel frame (11), a synchronous pulley II (12), a lower suction cup (13), a lower shaft (14), a lower roller (15), a synchronous pulley III (16), a driving motor (17), a synchronous belt II (18), a synchronous pulley IV (19), and an upper shaft (20), characterized in that: the upper suction cup ( 4) is fixed on the upper roller (2), the upper roller (2) is fixed on the upper rotating shaft (20), the upper rotating shaft (20) is arranged on the upper wheel frame (5), the upper wheel frame (5) is arranged on the upper support seat (6) through the upper preload (7), the upper support seat (6) is fixed on the frame (1), the lower suction cup (13) is fixed on the lower roller (15), the lower roller (15) is fixed on the lower rotating shaft (14), the lower rotating shaft (14) is arranged on the lower wheel frame (11), the lower wheel frame (11) is arranged on the lower support seat (10) through the lower preload (9), and the lower support seat (10) is fixed on the frame (1), The synchronous pulley I (3) and the synchronous pulley IV (19) are fixed on the upper rotating shaft (20), the synchronous pulley II (12) is fixed on the lower rotating shaft (14), the driving motor (17) is fixed on the frame (1), the synchronous pulley III (16) is fixed on the output shaft (B) of the driving motor (17), the synchronous belt I (8) is arranged between the synchronous pulley I (3) and the synchronous pulley II (12), the synchronous belt II (18) is arranged between the synchronous pulley III (16) and the synchronous pulley IV (19), the upper pretensioner (7) and the lower pretensioner (9) are connected by a spring base (21), a connecting rod (22), and a connecting rod (23). The invention is composed of a connecting shaft (22), a spiral spring (23), a bolt (24), a ratchet cover (25) and a nut (26); the connecting shaft (22) is fixed on a spring base (21); an outer hook (D) of the spiral spring (23) is arranged on a notch (E) of the spring base (21); an inner hook (C) of the spiral spring (23) is arranged on a notch (F) of the ratchet cover (25); the ratchet cover (25) is arranged on the connecting shaft (22); the ratchet cover (25) and the connecting shaft (22) are fixed by bolts (24) and nuts (26); and at least three climbing units (K) are arranged on the frame (1).

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