Anti-slope running system and running control method of large slope flow passage maintenance hanging basket

Abstract

A slope-resistant walking system for a suspended platform used for maintenance of a steep flow channel includes two fixed arms. Movable sleeves are fitted onto the fixed arms, and push cylinders are located at the top of the movable sleeves. One end of the push cylinder's push rod is connected and fixed to a fixed block located on the top surface of one end of the fixed arm. Rollers are located at both ends of the bottom of the fixed arms. A central housing is fixed between the two movable sleeves, and a braking mechanism is located on each of the side walls at both ends of the central housing. A connecting pipe is located between one end of the two fixed arms, and a winch mounting base is located between the other ends. A winch is mounted on the winch mounting base, and a traction rope on the winch is used to pull the suspended platform located at the bottom of the central housing. This invention, using the above structure and a walking-like movement method, effectively solves the problem of equipment instability caused by the steep slope of the top of the flow channel sidewall during movement, effectively ensuring the safety of flow channel sidewall maintenance operations.

Description

Technical Field

[0001] This invention relates to the field of hydropower station channel maintenance and construction technology, specifically to an anti-slippage walking system and walking control method for a suspended platform for maintenance of steep channel. Background Technology

[0002] During the maintenance of hydropower station channel, the sidewalls of the channel are particularly challenging to repair, requiring the use of cranes in conjunction with suspended platforms. Due to the significant horizontal length of the channel, the cranes on the dam crest alone cannot effectively control the suspended platforms at distant locations. Furthermore, the steep slope of the channel and its sidewalls makes the stability of equipment mounted on top of the sidewalls a critical concern during maintenance. Existing technologies lack effective solutions for controlling the stability of the suspended platform lifting equipment as it moves along the channel sidewalls. Therefore, maintenance work on steeply sloping channels presents significant safety risks. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a slope-prevention walking system and walking control method for a high-slope flow channel maintenance basket. By using a walking movement method, it can effectively solve the problem of equipment instability caused by the large slope of the top of the side wall during the movement of the equipment along the top of the flow channel side wall, and effectively ensure the safety of the flow channel side wall maintenance operation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a slope-prevention walking system for a high-slope channel maintenance basket, including two fixed arms, a movable sleeve is sleeved on the fixed arm, a push cylinder is provided on the top of the movable sleeve, and one end of the push rod of the push cylinder is connected and fixed to a fixed block provided on the top surface of one end of the fixed arm.

[0005] The fixed arm is equipped with rollers at both ends of its bottom.

[0006] A central housing is fixed between the two movable sleeves, and a set of braking mechanisms is provided on the side walls at both ends of the central housing;

[0007] A connecting pipe is provided between one end of the two fixed arms, and a winch mounting base is provided between the other ends. A winch is installed on the winch mounting base, and the traction rope on the winch is used to pull the basket set at the bottom of the middle shell.

[0008] In a preferred embodiment, a braking mechanism is also provided on the side wall of the connecting pipe facing the central housing.

[0009] In a preferred embodiment, side guide wheels are provided on the side walls of the central housing.

[0010] In a preferred embodiment, the braking mechanism includes two pull rods, each pull rod being L-shaped. One end of each pull rod has a hook perpendicular to it, which passes through a horizontal first hole in the middle housing. The two pull rods are positioned one above the other and fitted against the inner wall of the middle housing. The bottom surface of the upper pull rod and the top surface of the lower pull rod are respectively provided with teeth, and a gear is provided between the two sets of teeth, with the gear meshing with the two sets of teeth from the top and bottom respectively.

[0011] In a preferred embodiment, the braking mechanism further includes two brake rods located on the outer wall of the middle housing. The middle portions of the two brake rods are respectively positioned below the two ends of the first hole via a fixing pin. A second hole is provided on the brake rod above the fixing pin, and the end hook portion that passes through the first hole also passes through the second hole.

[0012] In a preferred embodiment, a brake block is fixed to the bottom end of the brake lever on the side facing outward.

[0013] In a preferred embodiment, the inner wall of the central housing is provided with two sets of guide cylinders, one above the other, and two tie rods are respectively installed through the two sets of guide cylinders.

[0014] The travel control method for the anti-slip slope travel system of the above-mentioned steep slope channel maintenance basket includes the following steps:

[0015] 1) Move the device to the top of the side walls on both sides of the flow channel, and ensure that the rollers on both sides of the device are located at the top of the side walls of the flow channel;

[0016] 2) By starting the motor inside the middle housing, the gear rotates and engages with the teeth on the pull rod, causing the brake rod in the braking mechanism on the middle housing to rotate around the fixed pin and the brake block to press against the side wall of the flow channel, thus fixing the device.

[0017] 3) When it is necessary to change the working area along the flow, the motor in the middle shell is started to rotate in the opposite direction, so that the gear rotates and engages with the teeth on the tie rod, so that the brake rod in the braking mechanism on the middle shell rotates around the fixed pin and the brake block is disengaged from the flow channel side wall. At the same time, the braking mechanism in the connecting pipe is controlled to achieve fixation in the manner described in step 2).

[0018] 4) The moving sleeve pusher cylinder moves and drives the moving sleeve to move in the forward direction;

[0019] 5) After moving into place, repeat steps 2) to 4) to move the entire device on the side wall of the flow channel by alternating movement of the fixed arm and the movable sleeve.

[0020] In the preferred embodiment, in step 5), after the entire device is moved into place, the hoist is started to lower the basket and a worker stands in the basket to carry out the inspection and construction of the flow channel sidewall.

[0021] In the preferred embodiment, in step 5), by controlling the running speed of the rollers and push cylinder, the device moves forward slowly while personnel simultaneously carry out maintenance work on the flow channel sidewall on the suspended platform, thereby achieving continuous maintenance work on the flow channel sidewall.

[0022] The present invention provides an anti-slippage walking system and walking control method for a high-slope channel maintenance basket. By adopting the above-mentioned structure and method, through the alternating movement between the fixed arm and the movable sleeve, while one part moves, the other part can be effectively fixed to the channel sidewall by the braking mechanism. This ensures the stability of the entire device during movement, guarantees the safety of personnel on the basket, avoids uncontrolled movement of the device due to the large slope of the channel sidewall, achieves precise control of the movement distance, and ensures the orderly progress of channel sidewall maintenance work. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a side sectional view of the present invention.

[0026] Figure 3 This is a top view of the braking mechanism of the present invention.

[0027] Figure 4 This is a front view schematic diagram of the braking mechanism of the present invention.

[0028] Figure 5 This is a schematic diagram of the transmission part of the braking mechanism of the present invention.

[0029] In the diagram: 1. Fixed arm; 2. Movable sleeve; 3. Push cylinder; 301. Push rod; 4. Fixed block; 5. Roller; 6. Connecting pipe; 7. Winch mounting base; 8. Winch; 9. Middle housing; 10. Braking mechanism; 11. Side guide wheel; 12. Traction rope; 13. Suspended basket; 14. First hole; 15. Brake lever; 16. Motor; 161. Drive shaft; 17. Pull rod; 171. End hook; 18. Fixed pin; 19. Brake block; 20. Second hole; 21. Gear; 22. Gear; 23. Guide cylinder. Detailed Implementation

[0030] Example 1:

[0031] like Figure 1-2 In the present invention, a slope-prevention walking system for a maintenance basket for a steep slope channel includes two fixed arms 1. A movable sleeve 2 is fitted on the fixed arm 1. A push cylinder 3 is provided on the top of the movable sleeve 2. One end of the push rod 301 of the push cylinder 3 is connected and fixed to a fixed block 4 provided on the top surface of one end of the fixed arm 1.

[0032] The fixed arm 1 is provided with rollers 5 at both ends of its bottom;

[0033] A central housing 9 is fixed between the two movable sleeves 2, and a set of braking mechanisms 10 is provided on the side walls at both ends of the central housing 9;

[0034] A connecting pipe 6 is provided between one end of the two fixed arms 1, and a winch mounting base 7 is provided between the other ends. A winch 8 is installed on the winch mounting base 7, and the traction rope 12 on the winch 8 is used to pull the basket 13 set at the bottom of the middle shell 9.

[0035] In a preferred embodiment, a braking mechanism 10 is also provided on the side wall of the connecting pipe 6 facing the central housing 9.

[0036] In a preferred embodiment, side guide wheels 11 are provided on the side walls of both sides of the central housing 9.

[0037] Example 2:

[0038] like Figure 3-5 Based on Embodiment 1, the braking mechanism 10 includes two pull rods 17, each pull rod 17 being an L-shaped rod. One end of each pull rod 17 is provided with an end hook 171 perpendicular to the pull rod 17. The end hook 171 passes through the first horizontal hole 14 provided on the middle housing 9. The two pull rods 17 are positioned one above the other and attached to the inner wall of the middle housing 9. The bottom surface of the upper pull rod 17 and the top surface of the lower pull rod 17 are respectively provided with teeth 22. A gear 21 is provided between the two sets of teeth 22, and the gear 21 meshes with the two sets of teeth 22 from the top and bottom respectively.

[0039] In a preferred embodiment, the braking mechanism 10 further includes two brake rods 15 located on the outer wall of the middle housing 9. The middle portions of the two brake rods 15 are respectively disposed below the two ends of the first hole 14 by a fixing pin 18. A second hole 20 is provided on the brake rod 15 above the fixing pin 18. The end hook 171 portion that passes through the first hole 14 also passes through the second hole 20.

[0040] In a preferred embodiment, a brake block 19 is fixed to the bottom end of the brake lever 15 on the side facing outward.

[0041] In a preferred embodiment, the inner wall of the central housing 9 is provided with two sets of guide cylinders 23, one above the other, and two pull rods 17 are respectively installed through the two sets of guide cylinders 23.

[0042] Example 3:

[0043] The travel control method for the anti-slippage travel system of the steep slope channel maintenance basket described in Example 2 includes the following steps:

[0044] 1) Move the device to the top of the side walls on both sides of the flow channel, and ensure that the rollers 5 on both sides of the device are located at the top of the side walls of the flow channel respectively;

[0045] 2) By starting the motor 16 inside the middle housing 9, the gear 21 rotates and engages with the gear 22 on the pull rod 17, causing the brake rod 15 in the braking mechanism 10 on the middle housing 9 to rotate around the fixed pin 18 and the brake block 19 to press against the flow channel side wall to fix the device.

[0046] 3) When it is necessary to change the working area along the flow, the motor 16 in the middle housing 9 is started to rotate in the opposite direction, so that the gear 21 rotates and engages with the gear 22 on the pull rod 17, so that the brake rod 15 in the braking mechanism 10 on the middle housing 9 rotates around the fixed pin 18 and the brake block 19 is disengaged from the flow channel side wall. At the same time, the braking mechanism 10 in the connecting pipe 6 is controlled to be fixed in the manner described in step 2).

[0047] 4) The upper cylinder 3 of the movable sleeve 2 moves and drives the movable sleeve 2 to move in the forward direction;

[0048] 5) After moving into place, repeat steps 2) to 4) to move the entire device on the flow channel sidewall by alternating movement of the fixed arm 1 and the movable sleeve 2.

[0049] In this embodiment:

[0050] After moving the entire device into place through the above steps, the hoist 8 is started to lower the suspended platform 13, and workers stand in the suspended platform 13 to carry out the inspection and construction of the flow channel sidewall.

[0051] In addition, in order to ensure the continuity of operations and reduce the downtime of personnel during equipment movement and the downtime of equipment during personnel operations, the above scheme can also adopt the method of controlling the running speed of roller 5 and push cylinder 3, so that the device moves forward slowly, and personnel can carry out maintenance and construction of the flow channel sidewall on the suspended basket 13 at the same time, so as to realize the continuous maintenance and construction of the flow channel sidewall.

Claims

1. A slope-prevention and travel system for a suspended platform used for maintenance of steep flow channels, characterized in that: It includes two fixed arms (1), and a movable sleeve (2) is fitted on the fixed arm (1). A push cylinder (3) is provided on the top of the movable sleeve (2). One end of the push rod (301) of the push cylinder (3) is connected and fixed to a fixed block (4) provided on the top surface of one end of the fixed arm (1). The fixed arm (1) is provided with rollers (5) at both ends of its bottom; A middle housing (9) is fixed between the two movable sleeves (2), and a set of braking mechanisms (10) are respectively provided on the side walls at both ends of the middle housing (9). A connecting pipe (6) is provided between one end of the two fixed arms (1), and a winch mounting base (7) is provided between the other ends. A winch (8) is installed on the winch mounting base (7), and the traction rope (12) on the winch (8) is used to pull the basket (13) set at the bottom of the middle shell (9). The connecting pipe (6) is also provided with a braking mechanism (10) on the side wall facing the middle housing (9). The braking mechanism (10) includes two pull rods (17), which are L-shaped rods. One end of the pull rod (17) is provided with an end hook (171) perpendicular to the pull rod (17). The end hook (171) passes through the first horizontal hole (14) provided on the middle housing (9). The two pull rods (17) are attached to the inner wall of the middle housing (9) one above the other. The bottom surface of the upper pull rod (17) and the top surface of the lower pull rod (17) are respectively provided with teeth (22). A gear (21) is provided between the two teeth (22). The gear (21) meshes with the two teeth (22) on the top and bottom respectively. The braking mechanism (10) further includes two brake rods (15) located on the outer wall of the middle housing (9). The middle part of the two brake rods (15) is respectively set below the two ends of the first hole (14) by a fixing pin (18). A second hole (20) is opened on the brake rod (15) above the fixing pin (18). The end hook (171) part that passes through the first hole (14) also passes through the second hole (20). The brake lever (15) has a brake block (19) fixed at its bottom end on the side facing outward.

2. The anti-slippage walking system for a high-slope channel maintenance basket according to claim 1, characterized in that: Side guide wheels (11) are provided on both sides of the central housing (9).

3. The anti-slippage walking system for a high-slope channel maintenance basket according to claim 1, characterized in that: The inner wall of the middle shell (9) is provided with two sets of guide cylinders (23), one above the other, and two pull rods (17) are respectively set through the two sets of guide cylinders (23).

4. The walking control method of the anti-slope walking system of the large slope runner overhauling basket according to any one of claims 1-3, characterized in that Includes the following steps: 1) Move the device to the top of the side walls on both sides of the flow channel, and ensure that the rollers (5) on both sides of the device are located at the top of the side walls of the flow channel respectively; 2) By starting the motor (16) inside the middle housing (9), the gear (21) rotates and engages with the teeth (22) on the pull rod (17), causing the brake rod (15) in the braking mechanism (10) on the middle housing (9) to rotate around the fixed pin (18) and make the brake block (19) stick to the side wall of the flow channel to fix the device. 3) When it is necessary to change the working area along the flow, the motor (16) in the middle housing (9) is started to rotate in the opposite direction, so that the gear (21) rotates and engages with the teeth (22) on the pull rod (17), so that the brake rod (15) in the braking mechanism (10) on the middle housing (9) rotates around the fixed pin (18) and the brake block (19) is disengaged from the flow channel side wall. At the same time, the braking mechanism (10) in the connecting pipe (6) is controlled to be fixed in the manner described in step 2). 4) The moving sleeve (2) pushes the cylinder (3) to run and drive the moving sleeve (2) to move in the forward direction; 5) After moving into place, repeat steps 2) to 4) to move the entire device on the side wall of the flow channel by alternating movement of the fixed arm (1) and the movable sleeve (2).

5. The walking control method of the anti-slip walking system of the large-gradient runner maintenance hanging basket according to claim 4, characterized in that: In step 5), after the device is moved into place, the hoist (8) is started to lower the basket (13) and a person stands in the basket (13) to carry out the maintenance and construction of the flow channel side wall.

6. The walking control method of the anti-slip walking system of the large-gradient runner maintenance hanging basket according to claim 5, characterized in that: In step 5), by controlling the running speed of the roller (5) and the push cylinder (3), the device moves forward slowly while personnel simultaneously carry out maintenance work on the flow channel sidewall on the basket (13), so as to realize continuous maintenance work on the flow channel sidewall.

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