Transfer lifting appliance for lifting bridge girder erection machine
By adopting a combined design of concave cross beam and reset mechanism in the transfer sling of the hoisting bridge frame, the problems of twisting and center of gravity change during the hoisting process are solved, and more stable lifting and reset are achieved, improving lifting quality and safety are improved. sex.
Patent Information
- Application Number
- CN202420083223.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-14
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-14
AI Technical Summary
The existing transport lifting equipment of the hoisting bridge rig has problems of twisting and center of gravity changes during the lifting process, which leads to unstable lifting and difficulty in resetting, affecting the lifting quality.
A transfer sling including a concave beam, a connecting mechanism, a hoisting mechanism and a reset mechanism are designed. Through the combination of mounting seat, a clamping seat, a rotating ball, a rotating column, a screw, and a spring, the flexible connection of the bridge framer and Reset to ensure the ability to twist and reset in all directions.
This design improves the stability and quality of the lifting process, ensures the safety and flexibility of the bridge rig during lifting and transfer, and can effectively avoid safety hazards.
Smart Images
Figure CN222204472U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-speed railway prefabricated box girder laying construction, and more specifically, to a transfer hoist for hoisting a bridge erecting machine. Background Art
[0002] With the continuous development of high-speed railway construction, large prefabricated box girders have become an important part of engineering construction. After the box girders are prefabricated in the beam manufacturing yard, they are lifted onto the bridge by a beam lifting machine and loaded onto a truck. The beam transporter transports the beam to the erection site and finally the bridge erection machine is used to erect the box girders on the completed bridge piers to complete the entire process of laying. Due to the many limitations and uncertainties in existing bridge construction, there is a certain uncertainty in the existing construction methods.
[0003] After searching, the utility model patent with announcement number CN210286440U discloses a transfer hoist for lifting a bridge erection machine, which solves the problem that the inevitable twisting and center of gravity change of the integrated beam transport and erection machine during the lifting process makes the transfer and lifting dangerous. It includes a horizontally arranged rectangular beam, a first connecting frame is fixed in the middle position of the bottom end of the beam, a second connecting frame is fixed at the lower part of the first connecting frame, the second connecting frame is vertically connected to the bridge erection machine, and adjustment screws are symmetrically arranged between the beam at both ends of the second connecting frame and the bridge erection machine. A sliding seat with a convex structure is arranged in the beam, a first steel wire rope is arranged on the sliding seat, and the first steel wire rope is connected to the lifting equipment. Thrust cylinders are symmetrically arranged between the beam and the sliding seat, one end of the thrust cylinder is fixed to the top of the beam, and the other end of the thrust cylinder is fixed to the side of the sliding seat higher than the top surface of the beam. The hoist is a combination of rigidity and flexibility, which can better eliminate safety hazards while completing the lifting task.
[0004] However, the above patent has the following shortcomings: the adjustment of the lead screw is only convenient for the bridge erection machine to move flexibly in a single direction, which affects the quality of the lifting, and when the center of gravity of the bridge erection machine changes slightly due to a slight twist, it is not convenient to reset the twist. For this reason, we propose a transfer hoist for hoisting the bridge erection machine. Utility Model Content
[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a transfer hoist for hoisting a bridge erecting machine.
[0006] In order to solve the above problems, the utility model adopts the following technical solutions:
[0007] A transfer hoist for hoisting a bridge-building machine, comprising a concave crossbeam, characterized in that: a connecting mechanism is provided at the bottom of the concave crossbeam, a bridge-building machine body is provided at the bottom end of the connecting mechanism, a hoisting mechanism is provided on the concave crossbeam, mounting seats are fixedly installed on the bottom surface of the concave crossbeam and the top surface of the bridge-building machine body respectively, two mounting seats are fixedly connected with a clamping seat, two clamping seats are clamped with rotating balls, two rotating balls are fixedly connected with rotating columns respectively, connecting frames are provided at the ends of the two rotating columns, connecting holes are opened on the end surfaces of the two connecting frames, screws are sleeved on the inner sides of the two connecting holes, nuts are threadedly installed at both ends of the screw and are respectively located in the inner cavities of the two connecting frames, and a reset mechanism is provided on the mounting seat.
[0008] As a preferred solution of the utility model, the reset mechanism includes a plurality of push seats fixedly connected to the mounting seat, the inner sides of the plurality of push seats are fixedly connected with springs, and the ends of the springs are connected to the side surfaces of the rotating column.
[0009] As a preferred solution of the utility model, the connecting mechanism includes an upper mounting plate fixedly connected to the bottom surface of the concave cross beam, a plurality of first steel ropes are fixedly connected to the bottom surface of the upper mounting plate, the bottom ends of the plurality of first steel ropes are fixedly connected to a connecting plate, the bottom surface of the connecting plate is fixedly connected to a hanging plate, the bottom end of the hanging plate is fixedly connected to a lower mounting plate, and the bottom surface of the lower mounting plate is fixedly connected to the top surface of the bridge-building machine body.
[0010] As a preferred solution of the utility model, the lifting mechanism includes a set seat fixedly connected to the inner side of the concave cross beam and two convex sliders slidably connected to the inner side of the concave cross beam, a push cylinder is fixedly sleeved on the set seat, and the two output ends of the push cylinder are respectively connected to the two convex sliders, and the top surfaces of the two convex sliders are fixedly connected to the second steel wire rope.
[0011] As a preferred solution of the present invention, the outer diameter of the screw is equal to the inner diameter of the connecting hole.
[0012] As a preferred solution of the utility model, the side surface of the convex sliding block is in contact with the inner wall of the concave crossbeam.
[0013] Compared with the prior art, the advantages of the present invention are:
[0014] (1) In the utility model, a mounting seat, a clamping seat, a rotating ball, a rotating column, a connecting frame, a connecting hole and a screw are arranged between the concave cross beam and the bridge-building machine body. When the bridge-building machine body is twisted during lifting, the cooperation between the clamping seat and the rotating ball can ensure that the bridge-building machine body is twisted in all directions, thereby ensuring the effect of flexible connection and having good practicality.
[0015] (2) In the utility model, through the coordinated use of the push seat and the spring, when the clamping seat and the rotating ball are twisted at a certain speed, the rotating column is driven to rotate. At this time, the rotating column will drive multiple springs to be compressed and stretched. At the same time, the restoring elastic force of the spring is used to drive the rotating column to reset, thereby ensuring that the twisted bridge-building machine body is reset, thereby improving the working quality of the transfer hoist used for lifting the bridge-building machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the concave crossbeam of the utility model;
[0018] Figure 3 It is a structural schematic diagram of the screw rod of the utility model;
[0019] Figure 4 It is a structural schematic diagram of the reset mechanism of the utility model.
[0020] Description of the numbers in the figure:
[0021] 1. Concave crossbeam; 2. Connecting mechanism; 3. Bridge erecting machine body; 4. Hoisting mechanism; 5. Mounting seat; 6. Clamping seat; 7. Rotating ball; 8. Rotating column; 9. Connecting frame; 10. Connecting hole; 11. Screw; 12. Nut; 13. Reset mechanism; 14. Push seat; 15. Spring; 16. Upper mounting plate; 17. First steel wire rope; 18. Connecting plate; 19. Hanging plate; 20. Lower mounting plate; 21. Set seat; 22. Convex slider; 23. Push cylinder; 24. Second steel wire rope. DETAILED DESCRIPTION
[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0025] Example:
[0026] See also Figure 1-4 A transfer hoist for hoisting a bridge erecting machine comprises a concave cross beam 1, a connecting mechanism 2 is arranged at the bottom of the concave cross beam 1, a bridge erecting machine body 3 is arranged at the bottom end of the connecting mechanism 2, a hoisting mechanism 4 is arranged on the concave cross beam 1, mounting seats 5 are fixedly installed on the bottom surface of the concave cross beam 1 and the top surface of the bridge erecting machine body 3, two mounting seats 5 are fixedly connected with clamping seats 6, two clamping seats 6 are clamped with rotating balls 7, two rotating balls 7 are fixedly connected with rotating columns 8, two rotating balls 7 are respectively fixedly connected with connecting frames 9 at the ends of the two rotating columns 8, connecting frames 9 are arranged at the end faces of the two connecting frames 9, screws 11 are sleeved on the inner sides of the two connecting holes 10, nuts 12 are threadedly installed at both ends of the screw 11 and are respectively located in the inner cavities of the two connecting frames 9, and a reset mechanism 13 is arranged on the mounting seat 5.
[0027] For details, please refer to Figure 1 and Figure 3 The reset mechanism 13 includes a plurality of push seats 14 fixedly connected to the mounting seat 5 , the inner sides of the plurality of push seats 14 are fixedly connected with springs 15 , and the ends of the springs 15 are connected to the side surfaces of the rotating column 8 .
[0028] In this embodiment, the plurality of push seats 14 and springs 15 are evenly arranged in a circle around the central axis of the mounting seat 5 , so as to ensure that the plurality of springs 15 provide even extrusion force to the rotating column 8 .
[0029] For details, please refer to Figure 1 The connecting mechanism 2 includes an upper mounting plate 16 fixedly connected to the bottom surface of the concave cross beam 1, a plurality of first steel wire ropes 17 are fixedly connected to the bottom surface of the upper mounting plate 16, a connecting plate 18 is fixedly connected to the bottom ends of the plurality of first steel wire ropes 17, a hanging plate 19 is fixedly connected to the bottom surface of the connecting plate 18, a lower mounting plate 20 is fixedly connected to the bottom end of the hanging plate 19, and the bottom surface of the lower mounting plate 20 is fixedly connected to the top surface of the bridge-building machine body 3.
[0030] In this embodiment, the concave cross beam 1 and the bridge erecting machine body 3 are flexibly connected through the upper mounting plate 16, the first steel wire rope 17, the connecting plate 18, the hanging plate 19 and the lower mounting plate 20.
[0031] For details, please refer to Figure 1 and Figure 2 The lifting mechanism 4 includes a set seat 21 fixedly connected to the inner side of the concave cross beam 1 and two convex sliders 22 slidably connected to the inner side of the concave cross beam 1. A push cylinder 23 is fixedly sleeved on the set seat 21. The two output ends of the push cylinder 23 are respectively connected to the two convex sliders 22. The top surfaces of the two convex sliders 22 are fixedly connected with a second steel wire rope 24.
[0032] In this embodiment, the top end of the second steel wire rope 24 is connected to the existing lifting equipment.
[0033] For details, please refer to Figure 3 and Figure 4 , the outer diameter of the screw rod 11 is equal to the inner diameter of the connecting hole 10.
[0034] In this embodiment, the stability of the screw rod 11 sleeved in the connecting hole 10 is ensured, thereby ensuring the stability between the upper and lower connecting frames 9.
[0035] For details, please refer to Figure 2 The side surface of the convex sliding block 22 is in contact with the inner wall of the concave crossbeam 1 .
[0036] In this embodiment, the contact between the inner wall of the concave crossbeam 1 and the side surface of the convex slider 22 is used to ensure the firmness of the connection between the convex slider 22 and the concave crossbeam 1 .
[0037] Working principle: When in use, the top end of the second steel wire rope 24 is connected to the lifting equipment, and the lifting equipment is used to drive the device to move. When the bridge-building machine body 3 is twisted during lifting, the concave crossbeam 1 and the bridge-building machine body 3 drive the connecting seat 6 and the rotating ball 7 therebetween to rotate, and at the same time, the rotating column 8 and the screw 11 are tilted, and the first steel wire rope 17 is also twisted. In addition, when the rotating ball 7 drives the rotating column 8 to rotate, the rotating column 8 squeezes the spring 15 on one side to compress, and the rotating column 8 simultaneously pulls the spring 15 on the other side to stretch. After the spring 15 is compressed and stretched, the restoring elastic force of the spring 15 will push and pull the rotating column 8 to reset, so that the rotating columns 8 arranged up and down can be arranged in the same line again, and at this time, the twisted bridge-building machine body 3 is driven to return to its original position, thereby ensuring the stability of the bridge-building machine body 3 during lifting.
[0038] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.
Claims
1. A transport hoist for hoisting a bridge erecting machine, comprising a concave crossbeam (1), characterized in that: A connecting mechanism (2) is provided at the bottom of the concave crossbeam (1), a bridge erecting machine body (3) is provided at the bottom end of the connecting mechanism (2), a hoisting mechanism (4) is provided on the concave crossbeam (1), mounting seats (5) are fixedly installed on the bottom surface of the concave crossbeam (1) and the top surface of the bridge erecting machine body (3), respectively, two mounting seats (5) are fixedly connected with a clamping seat (6), two rotating balls (7) are clamped on the two clamping seats (6), two rotating balls (7) are fixedly connected with a rotating column (8), and the ends of the two rotating columns (8) are provided with a connecting frame (9), the end surfaces of the two connecting frames (9) are provided with a connecting hole (10), the inner sides of the two connecting holes (10) are sleeved with a screw rod (11), and nuts (12) are threadedly installed at both ends of the screw rod (11) and are respectively located in the inner cavities of the two connecting frames (9), and a reset mechanism (13) is provided on the mounting seat (5).
2. A transfer sling for hoisting a bridge erecting machine according to claim 1, characterized in that: The reset mechanism (13) comprises a plurality of push seats (14) fixedly connected to the mounting seat (5), the inner side surfaces of the plurality of push seats (14) are all fixedly connected to springs (15), and the ends of the springs (15) are connected to the side surfaces of the rotating column (8).
3. A transfer sling for hoisting a bridge erecting machine according to claim 1, characterized in that: The connecting mechanism (2) comprises an upper mounting plate (16) fixedly connected to the bottom surface of the concave cross beam (1), a plurality of first steel wire ropes (17) are fixedly connected to the bottom surface of the upper mounting plate (16), the bottom ends of the plurality of first steel wire ropes (17) are fixedly connected to a connecting plate (18), the bottom surface of the connecting plate (18) is fixedly connected to a hanging plate (19), the bottom end of the hanging plate (19) is fixedly connected to a lower mounting plate (20), and the bottom surface of the lower mounting plate (20) is fixedly connected to the top surface of the bridge erection machine body (3).
4. A transport hoist for hoisting a bridge erecting machine according to claim 1, characterized in that: The hoisting mechanism (4) comprises a sleeve seat (21) fixedly connected to the inner side of the concave cross beam (1) and two convex sliding blocks (22) slidably connected to the inner side of the concave cross beam (1); a push cylinder (23) is fixedly sleeved on the sleeve seat (21); two output ends of the push cylinder (23) are respectively connected to the two convex sliding blocks (22); and the top surfaces of the two convex sliding blocks (22) are fixedly connected to a second steel wire rope (24).
5. The transfer hoist for hoisting a bridge erecting machine according to claim 1, characterized in that: The outer diameter of the screw (11) is equal to the inner diameter of the connecting hole (10).
6. A transfer hoist for hoisting a bridge erecting machine according to claim 4, characterized in that: The side surface of the convex sliding block (22) fits the inner wall of the concave cross beam (1).