Hoisting mechanism of manned safety cage

Abstract

The utility model discloses a hoisting mechanism of a manned safety cage, which comprises a base disc, a power mechanism and a plurality of wire winders, the base disc is horizontally arranged right above a well mouth, the base disc is rotatably connected with a rotating ring, and one surface of the rotating ring is provided with a circular ring-shaped output rack; the power mechanism is arranged on the base disc and is in transmission connection with the rotating ring to control the rotating ring to rotate at a constant speed; all the wire stranding devices are uniformly distributed in a circular ring shape and are coaxially arranged with the rotary ring, the wire stranding devices are fixedly connected with the base disc, wire rollers of the wire stranding devices are arranged in the radial direction of the rotary ring, and the wire rollers are sleeved with follow-up gears and are meshed with the output rack through the follow-up gears; a steel cable is wound on the wire roller, and a lifting hook is arranged at the end of the steel cable and used for being detachably connected with the top of the manned cage in a hung mode. The problem that a manned cage is prone to shaking, swinging and rotating in the lifting process can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of manned cages, in particular to a lifting mechanism of a manned safety cage. Background Art

[0002] TBM is a kind of equipment specially used for underground tunnel construction. During the construction process or after each construction stage, a manned cage is required to transfer some construction personnel from the ground to the underground to carry out support construction and debris removal at the construction site.

[0003] At present, the existing manned cage is generally raised and lowered by a winch and a steel cable. The winch is connected to the top of the manned cage by a steel cable, and the manned cage is raised or lowered by winding and releasing the steel cable by the winch.

[0004] During the lifting process of the manned cage, due to the uneven standing positions of the people inside and the synchronization problems between different steel cables, the manned cage will inevitably shake or swing. In severe cases, it will rotate and even cause the steel cables to become entangled with each other, posing a serious safety hazard. Utility Model Content

[0005] The utility model aims to provide a lifting mechanism for a manned safety cage, which solves the problem that the manned cage is prone to shaking, swinging and rotating during the lifting process.

[0006] The utility model is realized by the following technical solutions:

[0007] A lifting mechanism for a manned safety cage comprises: a base plate, which is horizontally arranged just above a wellhead, the base plate is rotatably connected to a swivel, and a circular output rack is provided on one side of the swivel; a power mechanism, which is arranged on the base plate and is transmission-connected to the swivel to control the uniform rotation of the swivel; a plurality of wire twisters, all of which are evenly distributed in a circular ring shape and are coaxially arranged with the swivel, the wire twisters are fixedly connected to the base plate, the wire rollers of the wire twisters are arranged radially along the swivel, the wire rollers are provided with follower gears, and are meshed with the output rack through the follower gears; the wire rollers are wound with steel cables, and the ends of the steel cables are provided with hooks, and the hooks are used for detachable hanging with the top of the manned cage.

[0008] Optionally, the base is a circular disk, the rotating ring is coaxially arranged on the top surface of the base; the power mechanism is arranged in the middle of the bottom surface of the base; and the wire-releasing end of the wire twister is arranged at the outer edge of the base.

[0009] Optionally, the power mechanism includes a motor, a driving gear and a plurality of driven gears; the motor is arranged in the middle of the bottom surface of the base plate, the output shaft of the motor is coaxially arranged with the base plate, the driving gear is coaxially arranged on the top surface of the base plate and connected with the output shaft of the motor; all the driven gears are arranged in a circular ring shape evenly around the driving gear and are rotatably connected with the base plate, and the driven gears are meshed with the driving gears; the inner ring of the rotating ring is provided with a circular input rack, and the driven gears are meshed with the input rack.

[0010] Optionally, the diameter of the driving gear is smaller than the inner diameter of the rotating ring, and the driven gear is clamped in an annular cavity between the driving gear and the rotating ring.

[0011] Optionally, the diameter of the driving gear is greater than the diameter of the driven gear.

[0012] Optionally, the number of the wire twisters is the same as the number of the driven gears; the wire twisters and the driven gears are arranged alternately; the two ends of the wire roller are rotatably connected to the base plate through support seats, and at least one end of the wire roller is located directly above the annular cavity between the rotating ring and the driving gear.

[0013] Optionally, the diameter of the base plate is larger than the outer diameter of the rotating ring; and the two ends of the wire roller are respectively located directly above the inner side and the outer side of the rotating ring.

[0014] Optionally, the base plate is provided with a plurality of rope holes along the thickness direction at the edge of the outer side of the rotating ring, the rope holes correspond one-to-one to the wire twisters, and the steel cables are passed through the corresponding rope holes.

[0015] Optionally, the wire twister is provided with a regulating roller, and the regulating roller is arranged parallel to the wire roller to form a regulating gap between the regulating roller and the wire roller, and the width of the regulating gap is slightly larger than the diameter of the steel cable.

[0016] Optionally, a regulating pulley is provided at each rope hole at the top of the base, the regulating pulley is located directly below the corresponding regulating gap and is coplanar with the regulating gap; a rope clamping groove matching the steel cable is provided in the middle of the wheel surface of the regulating pulley; an anti-slip component is provided on the wheel surface cover of the regulating pulley, the anti-slip component is U-shaped, and the anti-slip component is closed and surrounded by the wheel surface of the regulating pulley.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] The utility model provides a lifting mechanism for a manned safety cage, which provides basic structural support by setting a base plate; on this basis, a rotating ring is rotatably set on the base plate, an output rack is set on the rotating ring, and a plurality of wire twisters are set on the base plate, and a follower gear is set on the wire roller of the wire twister, so that the follower gear and the output rack are meshed, and the rotation of the rotating ring is used to synchronously drive all the follower gears to rotate, synchronously drive all the wire rollers to rotate, and synchronously drive all the wire twisters to twist and release wires, thereby effectively improving the winding and releasing synchronization rate between all the steel cables, and effectively reducing the swing and shaking of the manned cage. The possibility of movement and rotation; on this basis, by arranging the wire twisters in a ring shape and evenly distributing them, the force-bearing performance and structural stability of the entire device are effectively improved, and the swinging, shaking and rotation of the manned cage are further avoided; on this basis, by arranging a power mechanism, the rotating ring is driven to rotate in a directional and uniform speed to realize wire release and winding; by arranging a hook at the end of the steel cable, the hook and the cage are detachably connected; through the mutual cooperation of the above-mentioned features, the lifting mechanism of the manned safety cage can effectively solve the problems of shaking, swinging and rotation that are easy to occur during the lifting process of the manned cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0020] Figure 1 A schematic top view of a lifting mechanism of a manned safety cage provided in an embodiment of the utility model;

[0021] Figure 2 A schematic top view of the lifting mechanism of the manned safety cage provided by the embodiment of the utility model after the winch is removed;

[0022] Figure 3 A partially enlarged top view schematic diagram of a regulating pulley of a lifting mechanism of a manned safety cage provided by an embodiment of the utility model;

[0023] Figure 4 A bottom view schematically shows a lifting mechanism of a manned safety cage provided in an embodiment of the utility model.

[0024] Marks and corresponding parts names in the attached drawings:

[0025] 10-base plate; 11-rotating ring; 111-output rack; 112-input rack; 12-rope hole; 13-regulating pulley; 131-rope clamping groove; 132-anti-slip part; 20-twister; 21-line roller; 211-follower gear; 22-steel cable; 23-regulating roller; 24-support seat; 30-motor; 31-driving gear; 32-driven gear. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0027] Please refer to Figures 1 to 4 The embodiment of the utility model provides a lifting mechanism for a manned safety cage, comprising: a base plate 10, the base plate 10 is horizontally arranged just above the wellhead, the base plate 10 is rotatably connected to a rotating ring 11, and one side of the rotating ring 11 is provided with a circular output rack 111; a second power mechanism, the power mechanism is arranged on the base plate 10, the power mechanism is transmission-connected with the rotating ring 11 to control the rotating ring 11 to rotate at a uniform speed; a third power mechanism comprises a plurality of wire twisters 20, all of which are wire twisters. The devices 20 are evenly distributed in a circular ring shape and are coaxially arranged with the rotating ring 11. The wire twister 20 is fixedly connected to the base plate 10. The wire roller 21 of the wire twister 20 is arranged along the radial direction of the rotating ring 11. The wire roller 21 is provided with a follower gear 211 and is meshed with the output rack 111 through the follower gear 211; the wire roller 21 is wound with a steel cable 22, and a hook (not shown) is provided at the end of the steel cable 22, and the hook is used for detachable hanging with the top of the manned cage.

[0028] The utility model provides a lifting mechanism for a manned safety cage, which provides basic structural support by setting a base plate 10; on this basis, a rotating ring 11 is rotatably set on the base plate 10, an output rack 111 is set on the rotating ring 11, and a plurality of wire twisters 20 are set on the base plate 10, and a follower gear 211 is set on the wire roller 21 of the wire twister 20, so that the follower gear 211 is meshed with the output rack 111, and the rotation of the rotating ring 11 synchronously drives all the follower gears 211 to rotate, synchronously drives all the wire rollers 21 to rotate, and synchronously drives all the wire twisters 20 to twist and release wires, thereby effectively improving the winding and releasing of all the steel cables 22. The synchronization rate can effectively reduce the possibility of the manned cage swinging, shaking and rotating; on this basis, by arranging the wire twisters 20 in a ring shape and evenly distributing them, the force-bearing performance and structural stability of the whole device can be effectively improved, and the manned cage swinging, shaking and rotating can be further avoided; on this basis, by arranging a power mechanism, the rotating ring 11 can be driven to rotate in a directional and uniform speed to realize the wire release and winding; by arranging a hook at the end of the steel cable 22, the hook and the cage can be detachably hung; through the mutual cooperation of the above-mentioned features, the lifting mechanism of the manned safety cage can effectively solve the problem of shaking, swinging and rotating that are easy to occur during the lifting process of the manned cage.

[0029] It should be noted that, preferably, the manned cage can adopt a cylindrical structure to further ensure uniform force.

[0030] Preferably, in order to further improve the balance and stability of the structure, the base 10 is a circular disk, the rotating ring 11 is coaxially arranged on the top surface of the base 10; the power mechanism is arranged in the middle of the bottom surface of the base 10; and the wire-releasing end of the wire twister 20 is arranged at the outer edge of the base 10.

[0031] In order to further explain the specific structure of the power mechanism, the power mechanism includes a motor 30, a driving gear 31 and a plurality of driven gears 32; the motor 30 is arranged in the middle of the bottom surface of the base plate 10, and the output shaft of the motor 30 is coaxially arranged with the base plate 10, and the driving gear 31 is coaxially arranged on the top surface of the base plate 10 and connected with the output shaft of the motor 30; all the driven gears 32 are arranged in an annular shape and uniformly around the driving gear 31, and are rotatably connected with the base plate 10, and the driven gears 32 are meshed with the driving gears 31; the inner ring of the rotating ring 11 is provided with an annular input rack 112, and the driven gears 32 are meshed with the input rack 112.

[0032] Through the above arrangement, the motor 30 is used to drive the driving gear 31 to rotate, thereby driving all the driven gears 32 to rotate synchronously, thereby driving the rotating ring 11 to rotate.

[0033] Preferably, in order to ensure transmission performance, the diameter of the driving gear 31 is smaller than the inner diameter of the rotating ring 11 , and the driven gear 32 is sandwiched in an annular cavity between the driving gear 31 and the rotating ring 11 .

[0034] Further preferably, the diameter of the driving gear 31 is greater than the diameter of the driven gear 32 .

[0035] In order to further ensure the balance and stability of the structure, the number of the wire twisters 20 and the driven gears 32 is the same; the wire twisters 20 and the driven gears 32 are arranged alternately; the two ends of the wire roller 21 are rotatably connected to the base plate 10 through the support seat 24, and at least one end of the wire roller 21 is located directly above the annular cavity between the rotating ring 11 and the driving gear 31.

[0036] In order to prevent tooth jumping during the meshing process between the follower gear 211 and the output rack 111, the diameter of the base plate 10 is larger than the outer diameter of the rotating ring 11; the two ends of the line roller 21 are respectively located directly above the inner side and directly above the outer side of the rotating ring 11.

[0037] Through the above arrangement, the two ends of the line roller 21 are respectively located on both sides of the rotating ring 11 and are respectively fixedly connected to the base plate 10, so that the follower gear 211 located between the two support seats 24 is stably pressed above the output rack 111, effectively preventing the line roller 21 from jumping teeth due to slight tilting.

[0038] In order to preliminarily regulate the pay-out point of the steel cable 22 , the base plate 10 is provided with a plurality of rope holes 12 along the thickness direction at the edge outside the rotating ring 11 , and the rope holes 12 correspond one by one to the wire twisters 20 , and the steel cable 22 is inserted into the corresponding rope holes 12 .

[0039] In order to prevent unnecessary overlapping of the steel cable 22 when the wire twister 20 is winding up, resulting in uneven and asynchronous winding up among multiple wire twisters 20, the wire twister 20 is provided with a regulating roller 23, and the regulating roller 23 is arranged parallel to the wire roller 21 to form a regulating gap between the regulating roller 23 and the wire roller 21, and the width of the regulating gap is slightly larger than the diameter of the steel cable 22.

[0040] Through the above arrangement, the steel cable 22 can only be wound on the surface of the wire roller 21 in a single layer, thereby effectively preventing stacking.

[0041] In order to further improve the smoothness of the steel cable 22 during operation, a regulating pulley 13 is provided at each rope hole 12 on the top of the base plate 10. The regulating pulley 13 is located directly below the corresponding regulating gap and is coplanar with the regulating gap. A rope retaining groove 131 matching the steel cable 22 is provided in the middle of the wheel surface of the regulating pulley 13. The wheel surface cover of the regulating pulley 13 is provided with an anti-slip component 132. The anti-slip component 132 is U-shaped and is sealed and surrounded with the wheel surface of the regulating pulley 13.

[0042] Through the above configuration, the regulating pulley 13 can not only improve the smoothness of the operation of the steel cable 22, but also limit the running direction of the steel cable through the rope groove 131, and further prevent it from escaping from the regulating pulley 13 by setting the anti-slip component 132.

[0043] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A lifting mechanism for a manned safety cage, characterized in that: include: A base plate (10), the base plate (10) is horizontally arranged just above the wellhead, the base plate (10) is rotatably connected to a rotating ring (11), and a circular output rack (111) is arranged on one side of the rotating ring (11); A power mechanism, the power mechanism being arranged on the base plate (10), the power mechanism being in transmission connection with the rotating ring (11) so as to control the rotating ring (11) to rotate at a uniform speed; A plurality of wire twisters (20), all of which are evenly distributed in a circular ring shape and are coaxially arranged with the rotating ring (11). The wire twisters (20) are fixedly connected to the base plate (10), and the wire roller (21) of the wire twister (20) is arranged along the radial direction of the rotating ring (11). The wire roller (21) is provided with a follower gear (211) and is meshed with the output rack (111) through the follower gear (211); the wire roller (21) is wound with a steel cable (22), and a hook is provided at the end of the steel cable (22), and the hook is used for detachably hanging with the top of the manned cage.

2. The lifting mechanism of the manned safety cage according to claim 1 is characterized in that: The base plate (10) is a circular plate, and the rotating ring (11) is coaxially arranged on the top surface of the base plate (10); The power mechanism is arranged in the middle of the bottom surface of the base plate (10); The wire-releasing end of the wire twister (20) is arranged at the outer edge of the base plate (10).

3. The lifting mechanism of the manned safety cage according to claim 2 is characterized in that: The power mechanism comprises a motor (30), a driving gear (31) and a plurality of driven gears (32); The motor (30) is arranged in the middle of the bottom surface of the base plate (10), the output shaft of the motor (30) is coaxially arranged with the base plate (10), and the driving gear (31) is coaxially arranged on the top surface of the base plate (10) and connected to the output shaft of the motor (30); All the driven gears (32) are evenly arranged around the driving gear (31) in a circular ring shape and are rotatably connected to the base plate (10), and the driven gears (32) are meshed with the driving gear (31); The inner ring of the rotating ring (11) is provided with a circular input rack (112), and the driven gear (32) is meshed with the input rack (112).

4. The lifting mechanism of the manned safety cage according to claim 3 is characterized in that: The diameter of the driving gear (31) is smaller than the inner diameter of the rotating ring (11), and the driven gear (32) is sandwiched in an annular cavity between the driving gear (31) and the rotating ring (11).

5. The lifting mechanism of the manned safety cage according to claim 4, characterized in that: The diameter of the driving gear (31) is greater than the diameter of the driven gear (32).

6. The lifting mechanism of the manned safety cage according to claim 4, characterized in that: The number of the wire twisters (20) is the same as the number of the driven gears (32); The wire twister (20) and the driven gear (32) are arranged alternately; Both ends of the line roller (21) are rotatably connected to the base plate (10) via a support seat (24), and at least one end of the line roller (21) is located directly above the annular cavity between the rotating ring (11) and the driving gear (31).

7. The lifting mechanism of the manned safety cage according to claim 6, characterized in that: The diameter of the base plate (10) is greater than the outer diameter of the rotating ring (11); The two ends of the line roller (21) are respectively located directly above the inner side and directly above the outer side of the rotating ring (11).

8. The lifting mechanism of the manned safety cage according to claim 7, characterized in that: The base plate (10) is provided with a plurality of rope holes (12) along the thickness direction at the edge of the outer side of the rotating ring (11), and the rope holes (12) correspond to the wire twisters (20) one by one, and the steel cables (22) are inserted into the corresponding rope holes (12).

9. The lifting mechanism of the manned safety cage according to claim 8, characterized in that: The wire twister (20) is provided with a regulating roller (23), and the regulating roller (23) is arranged parallel to the wire roller (21) to form a regulating gap between the regulating roller (23) and the wire roller (21), and the width of the regulating gap is slightly larger than the diameter of the steel cable (22).

10. The lifting mechanism of the manned safety cage according to claim 9, characterized in that: A regulating pulley (13) is provided at the top of the base plate (10) at each of the rope holes (12), and the regulating pulley (13) is located directly below the corresponding regulating gap and is coplanar with the regulating gap; A rope-holding groove (131) matching with the steel cable (22) is formed in the middle of the wheel surface of the regulating pulley (13); The wheel surface cover of the regulating pulley (13) is provided with an anti-slipping piece (132), the anti-slipping piece (132) is U-shaped, and the anti-slipping piece (132) and the wheel surface of the regulating pulley (13) are sealed and surrounded.

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