Rotary cantilever lifting appliance for repairing ancient bridge

Abstract

The utility model discloses a rotary cantilever lifting appliance for repairing an ancient bridge, which comprises a transport vehicle, four groups of support rods are arranged on the periphery of the transport vehicle, and a speed reduction rotary motor is arranged in the middle of the transport vehicle; a rotating base plate is fixed to an output shaft of the speed reduction rotating motor, a stand column is arranged on the rotating base plate, a first cantilever is rotationally connected to the upper end of the stand column, and a first air cylinder shaft is further connected between the first cantilever and the stand column; a first rope take-up device is arranged on the lower side face of the first cantilever, the front end of the first cantilever is connected with a second cantilever, the front end of the second cantilever is connected with a third cantilever, the front end of the third cantilever is connected with a fourth cantilever, and the second steel wire rope is connected with a hanging basket. According to the utility model, all-directional and multi-angle operation can be realized, and the flexibility and safety of repairing work are improved.

Description

Technical Field

[0001] The utility model belongs to the field of bridge engineering, and particularly relates to a rotary cantilever sling for repairing ancient bridges. Background Technique

[0002] As cultural heritage, the repair of ancient bridges needs to be carried out while protecting the original structure, which often puts extremely high requirements on the flexibility and safety of repair equipment. Traditional repair tools and methods have great limitations in terms of operation flexibility, positioning accuracy, and protection of the structure of ancient bridges, and it is difficult to meet the needs of fine repair of ancient bridges. Especially in some special positions of ancient bridges, such as under the bridge arch and around the bridge piers, it is difficult for traditional fixed or large-scale repair equipment to enter, resulting in great difficulties in the repair work and the risk of damaging the ancient bridges. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rotary cantilever sling for repairing ancient bridges. The utility model can realize omnidirectional and multi-angle operation, and improve the flexibility and safety of the repair work.

[0004] The technical solution of the utility model: A rotary cantilever sling for repairing ancient bridges, including a transport vehicle, support rods are arranged around the transport vehicle, and a speed reduction rotary motor is arranged in the middle of the transport vehicle; characterized in that: a rotary chassis is fixed on the output shaft of the speed reduction rotary motor, a column is arranged on the rotary chassis, the upper end of the column is rotatably connected with a first cantilever, and a first cylinder shaft is also connected between the first cantilever and the column; a first rope winding device is arranged on the lower side of the first cantilever, the front end of the first cantilever is connected with a second cantilever, a second cylinder shaft is connected between the second cantilever and the first cantilever, the front end of the second cantilever is connected with a third cantilever, a third cylinder shaft is connected between the third cantilever and the second cantilever, and the front end of the third cantilever is connected with a fourth cantilever; a first steel wire rope is wound on the first rope winding device, and the first steel wire rope passes through the first cantilever and the second cantilever in sequence and is connected with the front end of the third cantilever; a rotary assembly is fixed at the front end of the fourth cantilever, a second rope winding device is fixed on the rotary assembly, a second steel wire rope is wound on the second rope winding device, and the second steel wire rope is connected with a hanging basket.

[0005] In the aforementioned rotary cantilever sling for repairing ancient bridges, the bottom of the column is fixedly connected with the rotary chassis through a plurality of bolts; a first cylinder shaft connecting piece is extended on the front side of the column; a first fixed shaft and a first bolt group are arranged between the column and the first cantilever, the first fixed shaft is annularly fixed on the column through the first bolt group, and the column and the first cantilever are rotatably connected through the first fixed shaft.

[0006] In the above-mentioned rotary cantilever hoist for repairing ancient bridges, one end of the first cylinder shaft is rotatably connected to the first cylinder shaft connecting piece. A second fixed shaft and a second bolt group are arranged between the first cylinder shaft and the first cylinder shaft connecting piece. The second fixed shaft is annularly fixed on the first cylinder shaft connecting piece through the second bolt group. The first cylinder shaft is rotatably connected to the first cylinder shaft connecting piece of the column through the second fixed shaft. A second cylinder shaft connecting piece is fixed on the lower side of the first cantilever. The second cylinder shaft connecting piece is rotatably connected to the other end of the first cylinder shaft. A third fixed shaft and a third bolt group are arranged between the second cylinder shaft connecting piece and the first cylinder shaft. The third fixed shaft is annularly fixed on the second cylinder shaft connecting piece through the third bolt group. The second cylinder shaft connecting piece is rotatably connected to the first cylinder shaft through the third fixed shaft.

[0007] In the above-mentioned rotary cantilever hoist for repairing ancient bridges, the first wire rope winding device includes a first rotary motor and a winding device connecting piece fixed on the first cantilever. A first wire winder is sleeved on the output shaft of the first rotary motor. The first steel wire rope is wound around the first wire winder. The output shaft of the first rotary motor passes through between the winding device connecting pieces. A plurality of first wire fixing holes are arranged at the lower end of the first cantilever. A plurality of second wire fixing holes are arranged at the lower end of the second cantilever. A wire shaft fixer is arranged at the front end of the third cantilever. The first steel wire rope sequentially passes through the first wire fixing hole and the second wire fixing hole and then is connected to the wire shaft fixer.

[0008] In the above-mentioned rotary cantilever hoist for repairing ancient bridges, a third cylinder shaft connecting piece is arranged at the front end of the first cantilever. A fourth cylinder shaft connecting piece is arranged at the front end of the second cantilever. Two ends of the second cylinder shaft are respectively hinged to the third cylinder shaft connecting piece and the fourth cylinder shaft connecting piece. A fifth cylinder shaft connecting piece is arranged at the front end of the third cantilever. Two ends of the third cylinder shaft are respectively hinged to the fourth cylinder shaft connecting piece and the fifth cylinder shaft connecting piece.

[0009] In the above-mentioned rotary cantilever hoist for repairing ancient bridges, the rotating assembly includes a fixing piece connected to the fourth cantilever. A rotating gear is rotatably fitted on the lower side of the fixing piece. A gear motor meshing with the rotating gear is arranged on one side of the fixing piece. A rotating shell is fixed at the lower end of the rotating gear. A hanging plate is arranged at the lower end of the rotating shell. Two sides of the lower end of the rotating shell are embedded in the side edges of the hanging plate and fixedly connected to the hanging plate. A plurality of pulleys corresponding to the second steel wire rope are arranged at both ends of the hanging plate.

[0010] In the above-mentioned rotary cantilever hoist for repairing ancient bridges, the second wire rope winding device includes a gear reducer fixed on the hanging plate. A set of second wire winders arranged in opposite directions are respectively sleeved on the output shafts at both ends of the gear reducer. The second steel wire rope is wound around the second wire winders. A fixed seat fixed on the hanging plate is arranged on the outer side of the second wire winder. The output shafts on both sides of the gear reducer pass through the fixed seat.

[0011] In the aforementioned rotary cantilever hoist for repairing ancient bridges, ladders are provided at both ends of the hanging basket.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Through the rotation and telescoping of the column and multi-stage cantilevers, combined with an accurate rope winding system, the utility model realizes the rapid positioning and adjustment of the equipment at different positions of the ancient bridge. Through the design of the rotating assembly and combined with a stable hanging basket, the utility model provides a safe working platform for the repair personnel and reduces the risk of working at heights. In addition, the utility model avoids using large machinery to directly contact the ancient bridge, reduces physical damage to the ancient bridge, and at the same time reduces unnecessary interference to the structure of the ancient bridge through accurate positioning. Description of the Drawings

[0014] Figure 1 is the front view of the utility model;

[0015] Figure 2 is the side view of the utility model;

[0016] Figure 3 is the schematic diagram of the rotating assembly of the utility model;

[0017] Figure 4 is the internal structure schematic diagram of the rotating assembly of the utility model;

[0018] Figure 5 is the partial view A of the utility model.

[0019] The reference signs in the drawings are: 1, column; 2, first cantilever; 3, second cantilever; 4, third cantilever; 5, fourth cantilever; 6, first cylinder shaft; 7, first rope winding device; 8, first steel wire rope; 9, rotating assembly; 10, second rope winding device; 11, second steel wire rope; 12, hanging basket; 13, first fixed shaft; 14, first bolt group; 15, second fixed shaft; 16, second bolt group; 17, first cylinder shaft connecting piece; 18, third fixed shaft; 19, third bolt group; 20, first rotating motor; 21, winding device connecting piece; 22, first wire winding device; 23, first wire fixing hole; 24, second wire fixing hole; 25, wire shaft fixer; 26, fixing piece; 27, rotating gear; 28, gear motor; 29, rotating shell; 30, hanging plate; 31, pulley; 32, gear reducer; 33, second wire winding device; 34, fixed seat; 35, ladder; 36, rotating chassis; 37, decelerating rotating motor; 38, second cylinder shaft connecting piece; 39, transport vehicle; 40, support rod; 41, second cylinder shaft; 42, third cylinder shaft; 43, third cylinder shaft connecting piece; 44, fourth cylinder shaft connecting piece; 45, fifth cylinder shaft connecting piece. Detailed implementation manners

[0020] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0021] Embodiment: A rotary cantilever hoist for repairing ancient bridges, the structure is as Figures 1-5 shown, including a transport vehicle 39, four groups of support rods 40 are arranged around the transport vehicle 39 front and back, and a speed reduction rotary motor 37 is provided in the middle of the transport vehicle 39. A rotary chassis 36 is fixed on the output shaft of the speed reduction rotary motor 37, and a column 1 is provided on the rotary chassis 36. The bottom of the column 1 is fixedly connected to the rotary chassis 36 through a plurality of bolts; as Figure 1 shown, a first cantilever 2 is rotatably connected to the upper end of the column 1, and a first cylinder shaft 6 is further connected between the first cantilever 2 and the column 1. A second cantilever 3 is connected to the front end of the first cantilever 2, a second cylinder shaft 41 is connected between the second cantilever 3 and the first cantilever 2, a third cantilever 4 is connected to the front end of the second cantilever 3, a third cylinder shaft 42 is connected between the third cantilever 4 and the second cantilever 3, and a fourth cantilever 5 is connected to the front end of the third cantilever 4. Each cantilever realizes multi-stage telescoping and rotation through the first cylinder shaft 6, the second cylinder shaft 41 and the third cylinder shaft 42 to meet the needs of different repair positions.

[0022] As Figure 5 shown, a first fixed shaft 13 and a first bolt group 14 are provided between the column 1 and the first cantilever 2. The first fixed shaft 13 is annularly fixed on the column 1 through the first bolt group 14, and the column 1 and the first cantilever 2 are rotatably connected through the first fixed shaft 13.

[0023] As Figure 5 shown, a first cylinder shaft connecting member 17 is extended and provided on the front side of the column 1. One end of the first cylinder shaft 6 is rotatably connected to the first cylinder shaft connecting member 17. A second fixed shaft 15 and a second bolt group 16 are provided between the first cylinder shaft 6 and the first cylinder shaft connecting member 17. The second fixed shaft 15 is annularly fixed on the first cylinder shaft connecting member 17 through the second bolt group 16, and the first cylinder shaft 6 and the first cylinder shaft connecting member 17 are rotatably connected through the second fixed shaft 15. A second cylinder shaft connecting member 38 is fixed on the lower side of the first cantilever 2. The second cylinder shaft connecting member 38 is rotatably connected to the other end of the first cylinder shaft 6. A third fixed shaft 18 and a third bolt group 19 are provided between the second cylinder shaft connecting member 38 and the first cylinder shaft 6. The third fixed shaft 18 is annularly fixed on the second cylinder shaft connecting member 38 through the third bolt group 19, and the second cylinder shaft connecting member 38 and the first cylinder shaft 6 are rotatably connected through the third fixed shaft 18. The first cylinder shaft 6 is connected to the column 1 and the first cantilever 2 through the second fixed shaft 15 and the third fixed shaft 18 to realize the lifting adjustment of the first cantilever 2.

[0024] The lower side of the first cantilever 2 is provided with a first cable winding device 7. A first steel wire cable 8 is wound around the first cable winding device 7. The first steel wire cable 8 passes through the first cantilever 2 and the second cantilever 3 in sequence and is connected to the front end of the third cantilever 4. The first cable winding device 7 includes a first rotating motor 20 and a winding device connecting piece 21 fixed on the first cantilever 2. As Figure 2 shown, a first winding device 22 is sleeved on the output shaft of the first rotating motor 20. The first steel wire cable 8 is wound around the first winding device 22. The output shaft of the first rotating motor 20 passes through between the winding device connecting pieces 21. A first wire fixing hole 23 is provided at the lower end of the first cantilever 2, a second wire fixing hole 24 is provided at the lower end of the second cantilever 3, and a spool fixing device 25 is provided at the front end of the third cantilever 4. The first steel wire cable 8 passes through the first wire fixing hole 23 and the second wire fixing hole 24 in sequence and is connected to the spool fixing device 25. The first cable winding device 7 of the first cantilever 2 is composed of a first rotating motor 20, a first winding device 22 and a first steel wire cable 8. The first steel wire cable 8 passes through the first wire fixing hole 23 on the first cantilever 2 and the second wire fixing hole 24 on the second cantilever 3 in sequence and is connected to the spool fixing device 25 at the front end of the third cantilever 4, and is used for adjusting the telescopic of the cantilever.

[0025] A third cylinder shaft connecting piece 43 is provided at the front end of the first cantilever 2, a fourth cylinder shaft connecting piece 44 is provided at the front end of the second cantilever 3, and both ends of the second cylinder shaft 41 are hinged to the third cylinder shaft connecting piece 43 and the fourth cylinder shaft connecting piece 44 respectively. A fifth cylinder shaft connecting piece 45 is provided at the front end of the third cantilever 4, and both ends of the third cylinder shaft 42 are hinged to the fourth cylinder shaft connecting piece 44 and the fifth cylinder shaft connecting piece 45 respectively.

[0026] A rotating assembly 9 is fixed at the front end of the fourth cantilever 5. As Figure 3 shown, the rotating assembly 9 includes a fixing piece 26 connected to the fourth cantilever 5. A rotating gear 27 is rotatably fitted on the lower side of the fixing piece 26. A gear motor 28 meshing with the rotating gear 27 is provided on one side of the fixing piece 26. A rotating shell 29 is fixed at the lower end of the rotating gear 27. A suspension plate 30 is provided at the lower end of the rotating shell 29. Both sides at the lower end of the rotating shell 29 are embedded in the side edges of the suspension plate 30 and are fixedly connected to the suspension plate 30. Four groups of pulleys 31 corresponding to the second steel wire cables 11 are provided at both ends of the suspension plate 30.

[0027] A second cable winding device 10 is fixed on the rotating assembly 9. As Figure 4As shown, a second steel wire rope 11 is wound around a second wire rope take-up device 10. The second wire rope take-up device 10 includes a gear reducer 32 fixed on a suspension plate 30. A set of second wire winding devices 33 arranged in opposite directions are respectively sleeved on the output shafts at both ends of the gear reducer 32. The second steel wire rope 11 is wound around the second wire winding devices 33. A fixed seat 34 fixed on the suspension plate 30 is provided on the outer side of the second wire winding device 33. The output shafts on both sides of the gear reducer 32 pass through the fixed seat 34. The gear reducer 32 on the suspension plate 30 drives the second wire winding devices 33 arranged in opposite directions, and the suspension basket 12 is connected through the second steel wire rope 11 to realize the up and down movement of the suspension basket 12.

[0028] The second steel wire rope 11 is connected to a suspension basket 12, and ladders 35 are provided at both ends of the suspension basket 12.

[0029] Through the rotation and telescoping of the column 1 and the multi-stage cantilever, combined with an accurate wire rope take-up system, this device realizes the rapid positioning and adjustment of the equipment at different positions of the ancient bridge. Through the design of the rotation assembly 9 and combined with the stable suspension basket 12, this device provides a safe working platform for the repair personnel and reduces the risk of working at heights. In addition, this device avoids using large machinery to directly contact the ancient bridge, reduces physical damage to the ancient bridge, and at the same time reduces unnecessary interference to the structure of the ancient bridge through accurate positioning.

[0030] Working process

[0031] Workers get on and off through the ladders 35 at both ends of the suspension basket 12. According to the repair position, the first cantilever 2 is adjusted to an appropriate angle, and the height of the first cantilever 2 is adjusted by using the first cylinder shaft 6. By controlling the first rotation motor 20, the second cylinder shaft 41 and the third cylinder shaft 42 of the first wire rope take-up device 7, the telescoping and orientation of each cantilever are adjusted to ensure that the repair point can be reached. The gear motor 28 is turned on, and the orientation of the suspension basket 12 is adjusted through the rotation gear 27 of the rotation assembly 9; at the same time, by using the second wire rope take-up device 10, the height of the suspension basket 12 is adjusted through the second steel wire rope 11 to ensure that the workers and repair materials accurately reach the designated position for the repair work of the ancient bridge. After the repair is completed, the wire rope is recovered through the wire rope take-up device, and each cantilever is restored to the initial position for the next use.

[0032] In summary, the utility model can realize all-round and multi-angle operations, improving the flexibility and safety of the repair work.

Claims

1. A rotary cantilever sling for repairing an ancient bridge, comprising a transport vehicle (39), wherein the transport vehicle (39) is provided with support rods (40) around it, and a reduction rotary motor (37) is provided in the middle of the transport vehicle (39); the characteristics are: A rotating chassis (36) is fixed on the output shaft of the reduction rotating motor (37), and a column (1) is provided on the rotating chassis (36). The upper end of the column (1) is rotatably connected to a first cantilever (2), and a first cylinder shaft (6) is also connected between the first cantilever (2) and the column (1); a first rope take-up device (7) is provided on the lower side of the first cantilever (2), a second cantilever (3) is connected to the front end of the first cantilever (2), a second cylinder shaft (41) is connected between the second cantilever (3) and the first cantilever (2), a third cantilever (4) is connected to the front end of the second cantilever (3), and the third cantilever (4) and the first cantilever (2) are connected to each other. A third cylinder shaft (42) is connected between the two cantilevers (3), and the front end of the third cantilever (4) is connected to the fourth cantilever (5); a first steel wire rope (8) is wound around the first rope take-up device (7), and the first steel wire rope (8) is sequentially passed through the first cantilever (2) and the second cantilever (3) and connected to the front end of the third cantilever (4); a rotating assembly (9) is fixed to the front end of the fourth cantilever (5), and a second rope take-up device (10) is fixed to the rotating assembly (9), and a second steel wire rope (11) is wound around the second rope take-up device (10), and the second steel wire rope (11) is connected to a hanging basket (12).

2. The rotary cantilever hanger for repairing ancient bridges according to claim 1 is characterized in that: The bottom of the column (1) is fixedly connected to the rotating chassis (36) via a plurality of bolts; a first cylinder shaft connecting member (17) is extended from the front side of the column (1); a first fixed shaft (13) and a first bolt group (14) are provided between the column (1) and the first cantilever (2); the first fixed shaft (13) is annularly fixed to the column (1) via the first bolt group (14); and the column (1) and the first cantilever (2) are rotationally connected via the first fixed shaft (13).

3. The rotary cantilever hanger for repairing ancient bridges according to claim 2 is characterized in that: One end of the first cylinder shaft (6) is rotatably connected to the first cylinder shaft connecting member (17); a second fixed shaft (15) and a second bolt group (16) are provided between the first cylinder shaft (6) and the first cylinder shaft connecting member (17); the second fixed shaft (15) is annularly fixed to the first cylinder shaft connecting member (17) via the second bolt group (16); the first cylinder shaft (6) is rotatably connected to the first cylinder shaft connecting member (17) of the column via the second fixed shaft (15); the lower side of the first cantilever (2) A second cylinder shaft connecting member (38) is fixed on the surface, and the second cylinder shaft connecting member (38) is rotatably connected to the other end of the first cylinder shaft (6). A third fixed shaft (18) and a third bolt group (19) are provided between the second cylinder shaft connecting member (38) and the first cylinder shaft (6). The third fixed shaft (18) is annularly fixed to the second cylinder shaft connecting member (38) via the third bolt group (19), and the second cylinder shaft connecting member (38) is rotatably connected to the first cylinder shaft (6) via the third fixed shaft (18).

4. The rotary cantilever hanger for repairing ancient bridges according to claim 1 is characterized in that: The first rope take-up device (7) comprises a first rotating motor (20) and a take-up device connecting member (21) fixed on the first cantilever (2); a first winding device (22) is sleeved on the output shaft of the first rotating motor (20), and the first steel wire rope (8) is wound on the first winding device (22); the output shaft of the first rotating motor (20) is passed through between the take-up device connecting members (21); a plurality of first wire fixing holes (23) are provided at the lower end of the first cantilever (2), a plurality of second wire fixing holes (24) are provided at the lower end of the second cantilever (3), and a bobbin holder (25) is provided at the front end of the third cantilever (4); the first steel wire rope (8) passes through the first wire fixing hole (23) and the second wire fixing hole (24) in sequence and is connected to the bobbin holder (25).

5. The rotary cantilever hanger for repairing ancient bridges according to claim 1 is characterized in that: The front end of the first cantilever (2) is provided with a third cylinder shaft connecting member (43), the front end of the second cantilever (3) is provided with a fourth cylinder shaft connecting member (44), and the two ends of the second cylinder shaft (41) are respectively hinged to the third cylinder shaft connecting member (43) and the fourth cylinder shaft connecting member (44); the front end of the third cantilever (4) is provided with a fifth cylinder shaft connecting member (45), and the two ends of the third cylinder shaft (42) are respectively hinged to the fourth cylinder shaft connecting member (44) and the fifth cylinder shaft connecting member (45).

6. The rotary cantilever hanger for repairing ancient bridges according to claim 1 is characterized by: The rotating assembly (9) includes a fixing member (26) connected to the fourth cantilever (5), the lower side of the fixing member (26) is rotatably matched with a rotating gear (27), one side of the fixing member (26) is provided with a gear motor (28) meshing with the rotating gear (27), a rotating shell (29) is fixed at the lower end of the rotating gear (27), a hanging plate (30) is provided at the lower end of the rotating shell (29), both sides of the lower end of the rotating shell (29) are embedded in the side of the hanging plate (30) and are fixedly connected to the hanging plate (30); a plurality of pulleys (31) corresponding to the second steel wire rope (11) are provided at both ends of the hanging plate (30).

7. The rotary cantilever hanger for repairing ancient bridges according to claim 6 is characterized by: The second rope take-up device (10) comprises a gear reducer (32) fixed on a hanging plate (30), and a group of second winding machines (33) arranged in opposite directions are respectively mounted on the output shafts at both ends of the gear reducer (32), and the second steel wire rope (11) is wound on the second winding machines (33); the outer side surface of the second winding machine (33) is provided with a fixing seat (34) fixed on the hanging plate (30), and the output shafts on both sides of the gear reducer (32) are passed through the fixing seat (34).

8. The rotary cantilever hanger for repairing ancient bridges according to claim 7 is characterized in that: Ladders (35) are provided at both ends of the hanging basket (12).

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