A device for moving a truss beam
By designing a combination of load-bearing and traction devices, the safety hazards and low efficiency problems in the dismantling of truss beams were solved, achieving stable and efficient movement of truss beams and reducing damage to load-bearing beams and personnel requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XINGTU BRIDGE SPECIAL EQUIP MFG
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-04
AI Technical Summary
Existing technologies for dismantling truss beams during bridge construction present problems such as irreversible damage to load-bearing beams, safety hazards, difficulty in synchronous lateral movement, low work efficiency, and high personnel requirements.
Design a mobile truss beam device that includes a load-bearing device and a traction device. The load-bearing device moves on a track via rollers, and the traction device consists of multiple traction vehicles and a locking device. The truss beam is stably tractioned and moved synchronously by a power device.
It enables stable, safe, and efficient movement of truss beams, avoids damage to load-bearing beams, and reduces operational difficulty and personnel requirements.
Smart Images
Figure CN224591326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device for moving truss beams. Background Technology
[0002] During bridge construction, it is necessary to dismantle the truss beams that assist in the bridge construction. Existing technologies for dismantling truss beams have the following problems: local cutting of the reinforcing ribs of the load-bearing beams is required, causing irreversible damage to the load-bearing beams; when using a hand-operated hoist to pull the truss beams, there are safety hazards for personnel operating at the ends of the I-beams, and the lateral movement speeds at both ends of the truss beams are difficult to synchronize, which can easily lead to lateral deviation and damage to the trolley; the current manual operation process is inefficient, and the dismantling of truss beams is time-consuming; and the personnel requirements are large in the lifting, pulling, and translating stages of the truss beams. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a device for moving truss beams that is easy to use and operate, overcoming the shortcomings of the existing technology.
[0004] The technical solution adopted by this utility model is: a device for moving truss beams, including a load-bearing device and a traction device for moving the load-bearing device.
[0005] The load-bearing device includes a frame, the frame being equipped with a first drive device for driving the lifting frame to move vertically, the first drive device being connected to the lifting frame; rollers are rotatably connected to the lower part of the frame; the rollers rest on the track of the load-bearing beam;
[0006] The traction device includes a first traction vehicle, a second traction vehicle, and a third traction vehicle that are sequentially and movably mounted on the weighing beam.
[0007] The first tractor and the second tractor are connected by a second drive unit, and the second tractor and the third tractor are connected by a third drive unit.
[0008] The first and third tractors are each equipped with a locking device that restricts the movement of the first or third tractor relative to the load-bearing beam; the load-bearing device is connected to the second tractor via the drawbar.
[0009] When the truss beam is moved, it rests on the loading device. The locking device on the first tractor is locked to the load-bearing beam, while the locking device on the third tractor is unlocked. The second drive unit extends, and the third drive unit remains extended. The second and third tractors move away from the first tractor, and the second tractor, via a tow bar, moves the load-bearing vehicle closer to the first tractor. Subsequently, the locking device on the first tractor is unlocked, while the locking device on the third tractor is locked. The third drive unit... The second and first tractors retract and move towards the third tractor. The second tractor, via its drawbar, moves the load-bearing vehicle towards the third tractor, and the second drive unit retracts. Then, the locking device on the first tractor is locked to the load-bearing beam, while the locking device on the third tractor is unlocked. The first drive unit extends and moves the second and third tractors away from the first tractor. The second tractor, via its drawbar, moves the load-bearing vehicle towards the first tractor, and the second drive unit extends. This process is repeated.
[0010] The load-bearing beam has rails on both sides, and a reinforcing plate is provided below the rails. The upper part of the reinforcing plate supports the lower part of the rails, and the side of the reinforcing plate is fixedly connected to the load-bearing beam. The load-bearing device is provided on both rails, and the frame or lifting frame of the two load-bearing devices is connected by a connecting frame.
[0011] The frame or lifting frame is fixedly connected to the connecting frame with bolts.
[0012] The track has guide plates on both sides, and the frame has rotatable guide wheels on both sides. The guide wheels have vertical shafts and are located inside the guide plates.
[0013] The first, second, and third tractors each include a support frame, which is equipped with at least two pulleys. The support frame includes a horizontal section and two vertical sections spaced apart and fixedly connected to the horizontal section. There is a gap between the two vertical sections that allows a load-bearing beam to fall into. The horizontal section is above the load-bearing beam, and the vertical sections are on both sides of the load-bearing beam. The pulleys fall on the load-bearing beam.
[0014] The locking device includes a pin movably connected to the bracket. The bracket has a guide hole, and the pin is movably disposed within the guide hole along its extension direction. A limiting block is provided on the side of the load-bearing beam. When the locking device and the load-bearing beam are locked, the pin is positioned close to the load-bearing beam and abuts against the limiting block. When the locking device and the load-bearing beam are unlocked, the pin is positioned away from the load-bearing beam and does not abut against the limiting block.
[0015] It also includes a fourth drive unit for driving the pin.
[0016] The fourth drive unit can be a cylinder, a hydraulic cylinder, or a linear motor.
[0017] The first drive device, the second drive device, and the third drive device may be respectively a cylinder, a hydraulic cylinder, or a linear motor.
[0018] The traction rod includes a first connecting rod and a second connecting rod threadedly connected to the first connecting rod. The first connecting rod and the second connecting rod are respectively connected to the load-bearing device and the second traction vehicle.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: the load-bearing device in this application can be easily placed under the truss beam, and after being connected by the connecting frame, it can form a stable structure. The traction device adopts three traction vehicles to provide strong traction power, and a stable connection structure is formed between the traction vehicles and the load-bearing beam. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Figure 2 yes Figure 1 A structural diagram from another perspective.
[0022] Figure 3 This is a structural schematic diagram of the load-bearing device and traction device described in this utility model.
[0023] Figure 4 This is a structural diagram of the utility model in use. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] like Figures 1 to 4 As shown, a device for moving a truss beam in this embodiment includes a load-bearing device 1 and a traction device 3 for moving the load-bearing device 1.
[0026] The load-bearing device 1 includes a frame 11, which is equipped with a first drive device 12 for driving the lifting frame 13 to move vertically. The first drive device 12 is connected to the lifting frame 13. A roller 14 is rotatably connected to the lower part of the frame 11. The roller 14 rests on the track 21 of the load-bearing beam 2. In this embodiment, the load-bearing device 1 is mainly used to transport the truss beam 5. When the load-bearing device 1 moves to below the truss beam 5, the first drive device 12 lifts the lifting frame 13, and the truss beam 5 rests on the lifting frame 13, so that the truss beam 5 is removed from the support of the load-bearing beam 2.
[0027] The traction device 3 includes a first traction vehicle 31, a second traction vehicle 32, and a third traction vehicle 33 that are sequentially movably arranged on the weighing beam. The traction device 3 mainly provides power for the moving load-bearing device 1.
[0028] The first tractor 31 and the second tractor 32 are connected by the second drive device 34, and the second tractor 32 and the third tractor 33 are connected by the third drive device 35.
[0029] The first tractor 31 and the third tractor 33 are respectively equipped with locking devices 4 that restrict the movement of the first tractor 31 or the third tractor 33 relative to the load-bearing beam 2; the load-bearing device 1 is connected to the second tractor 32 through the traction rod 6.
[0030] When the truss beam 5 is moved, it rests on the load-bearing device 1. The locking device 4 on the first tractor 31 is locked to the load-bearing beam 2, while the locking device 4 on the third tractor 33 is unlocked. The second drive device 34 extends, and the third drive device 35 remains extended. The second tractor 32 and the third tractor 33 move away from the first tractor 31. The second tractor 32 drives the load-bearing vehicle to move closer to the first tractor 31 via the traction rod 6. Subsequently, the locking device 4 on the first tractor 31 is unlocked, while the locking device 4 on the third tractor 33 is locked. The third drive device 35... The second tractor 32 and the first tractor 31 retract and move towards the third tractor 33. The second tractor 32 drives the load vehicle to move towards the third tractor 33 via the drawbar 6, and the second drive device 34 retracts. Then, the locking device 4 on the first tractor 31 is locked to the load-bearing beam 2, while the locking device 4 on the third tractor 33 is unlocked. The first drive device 12 extends the second tractor 32 and the third tractor 33 to move away from the first tractor 31. The second tractor 32 drives the load vehicle to move towards the first tractor 31 via the drawbar 6, and the second drive device 34 extends. This process is repeated. In this embodiment, the locking device 4 being locked to the load-bearing beam 2 means that the locking device 4 keeps the first tractor 31 or the third tractor 33 and the load-bearing beam 2 stationary in the direction of force applied to the traction load-bearing device 1, and is not limited to keeping the first tractor 31 or the third tractor 33 and the load-bearing beam 2 stationary in both directions of movement.
[0031] In a preferred embodiment, rails 21 are provided on both sides of the load-bearing beam 2, and a reinforcing plate is provided below the rails 21. The upper end of the reinforcing plate supports the lower part of the rails 21, and the side of the reinforcing plate is fixedly connected to the load-bearing beam 2. The load-bearing device 1 is provided on both rails 21, and the frames 11 or lifting frames 13 of the two load-bearing devices 1 are connected by a connecting frame 15. In use, the frame 11 is first moved to below the truss beam 5, the first drive device 12 lifts the lifting frame 13, and the truss beam 5 falls on the lifting frame 13, so that the truss beam 5 is detached from the support of the load-bearing beam 2. In order to improve the stability of operation, load-bearing devices 1 are provided on both sides of the rails 21, and the connecting frame 15 connects the two load-bearing devices 1 to form a stable structure.
[0032] In a preferred embodiment, the frame 11 or the lifting frame 13 is fixedly connected to the connecting frame 15 by bolts. The connecting frame 15 in this application is detachably connected to the frame 11 or the lifting frame 13, which facilitates the installation of the load-bearing device 1.
[0033] In a preferred embodiment, the track 21 has guide plates 22 on both sides, and the frame 11 has rotatably mounted guide wheels 16 on both sides. The axis of rotation of the guide wheels 16 is vertical, and the guide wheels 16 are located inside the guide plates 22. In this application, when the load-bearing device 1 moves, the guide wheels 16 and guide plates 22 come into contact and experience rolling friction, while also providing a guiding function.
[0034] In a preferred embodiment, the first tractor 31, the second tractor 32, and the third tractor 33 each include a bracket 36. Each bracket 36 is equipped with at least two pulleys 37. The bracket 36 includes a horizontal portion 362 and two vertical portions 361 spaced apart and fixedly connected to the horizontal portion 362. A gap exists between the two vertical portions 361 for the load-bearing beam 2 to fall into. The horizontal portion 362 is positioned above the load-bearing beam 2, and the vertical portions 361 are located on either side of the load-bearing beam 2. The pulleys 37 rest on the load-bearing beam 2. The frame 11 structures of the first tractor 31, the second tractor 32, and the third tractor 33 in this application are all identical. Since the vertical portions 361 are located outside the load-bearing beam 2, the bracket 36 and the load-bearing beam 2 form a guiding sliding structure, making the operation of the tractor more stable.
[0035] In a preferred embodiment, the locking device 4 includes a pin 41 movably connected to the bracket 36. The bracket 36 has a guide hole, and the pin 41 is movably disposed within the guide hole along its extension direction. A limiting block is provided on the side of the load-bearing beam 2. When the locking device 4 and the load-bearing beam 2 are locked, the pin 41 is positioned close to the load-bearing beam 2, and the pin 41 abuts against the limiting block. When the locking device 4 and the load-bearing beam 2 are unlocked, the pin 41 is positioned away from the load-bearing beam 2, and the pin 41 does not abut against the limiting block.
[0036] In a preferred embodiment, a fourth drive device 42 for driving the pin 41 is also included.
[0037] In a preferred embodiment, the fourth drive device 42 may be a cylinder, a hydraulic cylinder, or a linear motor.
[0038] In a preferred embodiment, the first drive device 12, the second drive device 34, and the third drive device 35 may be respectively adopted as a cylinder, a hydraulic cylinder, or a linear motor.
[0039] In a preferred embodiment, the traction rod 6 includes a first connecting rod 61 and a second connecting rod 62 threadedly connected to the first connecting rod 61. The first connecting rod 61 and the second connecting rod 62 are respectively connected to the load-bearing device 1 and the second tractor 32.
Claims
1. A device for moving a truss beam, characterized in that, Includes load-bearing devices and traction devices for moving load-bearing devices; The load-bearing device includes a frame, the frame being equipped with a first drive device for driving the lifting frame to move vertically, the first drive device being connected to the lifting frame; rollers are rotatably connected to the lower part of the frame; the rollers rest on the track of the load-bearing beam; The traction device includes a first traction vehicle, a second traction vehicle, and a third traction vehicle that are sequentially and movably mounted on the weighing beam. The first tractor and the second tractor are connected by a second drive unit, and the second tractor and the third tractor are connected by a third drive unit. The first tractor and the third tractor are each equipped with a locking device that restricts the movement of the first tractor or the third tractor relative to the load-bearing beam; the load-bearing device is connected to the second tractor via the drawbar. When the truss beam is moved, it rests on the load-bearing device. The locking device on the first tractor is locked to the load-bearing beam, while the locking device on the third tractor is unlocked. The second drive unit extends, and the third drive unit remains extended. The second and third tractors move away from the first tractor, and the second tractor drives the load-bearing vehicle closer to the first tractor via a tow bar. Subsequently, the locking device on the first tractor is unlocked, while the locking device on the third tractor is locked. The third drive unit retracts, and the second and first tractors move closer to the third tractor. The second tractor drives the load-bearing vehicle closer to the third tractor via a tow bar, and the second drive unit retracts. Then, the locking device on the first tractor is locked to the load-bearing beam, while the locking device on the third tractor is unlocked. The first drive unit extends the second and third tractors to move away from the first tractor. The second tractor drives the load-bearing vehicle to move closer to the first tractor via the drawbar, and the second drive unit extends. This process is repeated.
2. A device for moving a truss beam as claimed in claim 1, characterized in that The load-bearing beam has rails on both sides, and a reinforcing plate is provided below the rails. The upper part of the reinforcing plate supports the lower part of the rails, and the side of the reinforcing plate is fixedly connected to the load-bearing beam. The load-bearing device is provided on both rails, and the frame or lifting frame of the two load-bearing devices is connected by a connecting frame.
3. An apparatus for moving a truss beam as defined in claim 1, wherein, The frame or lifting frame is fixedly connected to the connecting frame with bolts.
4. An apparatus for moving a truss beam as defined in claim 1, wherein, The track has guide plates on both sides, and the frame has rotating guide wheels on both sides. The guide wheels have vertical shafts and are located inside the guide plates.
5. An apparatus for moving a truss beam as defined in claim 1, wherein, The first, second, and third tractors each include a support frame, which is equipped with at least two pulleys. The support frame includes a horizontal section and two vertical sections spaced apart and fixedly connected to the horizontal section. There is a gap between the two vertical sections that allows a load-bearing beam to fall into it. The horizontal section is above the load-bearing beam, and the vertical sections are on both sides of the load-bearing beam. The pulleys fall on the load-bearing beam.
6. An apparatus for moving a truss beam as defined in claim 1, wherein, The locking device includes a pin movably connected to the bracket. The bracket has a guide hole, and the pin is movably disposed within the guide hole along its extension direction. A limiting block is provided on the side of the load-bearing beam. When the locking device and the load-bearing beam are locked, the pin is positioned close to the load-bearing beam and abuts against the limiting block. When the locking device and the load-bearing beam are unlocked, the pin is positioned away from the load-bearing beam and does not abut against the limiting block.
7. A device for moving a truss beam as claimed in claim 6, characterized in that It also includes a fourth drive unit for driving the pin.
8. A device for moving a truss beam as claimed in claim 7, characterized in that The fourth drive unit can be a cylinder, a hydraulic cylinder, or a linear motor.
9. An apparatus for moving a truss beam as defined in claim 1, wherein, The first drive device, the second drive device, and the third drive device may be respectively a cylinder, a hydraulic cylinder, or a linear motor.
10. An apparatus for moving a truss beam as defined in claim 1, wherein, The traction rod includes a first connecting rod and a second connecting rod threadedly connected to the first connecting rod. The first connecting rod and the second connecting rod are respectively connected to the load-bearing device and the second traction vehicle.