CN219239069U - Bracket trolley winding system for single-box girder shore bridge - Google Patents
Bracket trolley winding system for single-box girder shore bridge Download PDFInfo
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- CN219239069U CN219239069U CN202320841999.7U CN202320841999U CN219239069U CN 219239069 U CN219239069 U CN 219239069U CN 202320841999 U CN202320841999 U CN 202320841999U CN 219239069 U CN219239069 U CN 219239069U
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Abstract
The utility model discloses a bracket trolley winding system for a single-box girder shore bridge, which comprises a trolley assembly, a bracket trolley, a tensioning device, a pulley block, a tensioning traction steel wire rope, a first steel wire rope and a second steel wire rope, wherein the trolley assembly, the bracket trolley, the tensioning device, the pulley block, the tensioning traction steel wire rope and the first steel wire rope are arranged on the upper surface of a girder structure; the bracket trolley is provided with two sets which are respectively arranged on the sea side and the land side of the trolley assembly; the pulley block is provided with two sets which are respectively arranged on the sea side and the land side of the trolley assembly and are positioned on the outer side of the bracket trolley; the tensioning traction steel wire rope is wound on the two sets of pulley blocks, and two ends of the tensioning traction steel wire rope are respectively connected with the two sets of bracket trolleys; the first steel wire rope is connected with the land side bracket trolley and the trolley assembly; the second steel wire rope is connected with the bracket trolley and the trolley assembly at the sea side; the tensioning device is arranged on the outer side of the pulley block on the land side and is in tensioning fit with the tensioning traction steel wire rope. The utility model controls the suspension amount of the main hoisting steel wire rope from the source, and solves the problem that the steel wire rope is easy to bounce.
Description
Technical Field
The utility model relates to a shore bridge winding system, in particular to a bracket trolley winding system for a single-box girder shore bridge.
Background
According to the development requirement of single-box girder shore bridge maximization, the girder has longer front and rear elongation, the span of the main hoisting winding steel wire rope is longer, the suspension length is long, the deflection is larger, and the problem of bouncing easily occurs in the operation process. The bouncing of the steel wire rope looks like a small problem, and the bouncing of the steel wire rope directly affects the running stability and the operating efficiency of a large and a small trolley of the quay bridge, aggravates the vibration of the quay bridge, affects the performance of the whole machine, and sometimes even directly becomes one of important reasons affecting the normal operation of the quay bridge. Moreover, the tension force required by the large-span steel wire rope to overcome the deflection under the action of the dead weight of the steel wire rope is also greatly increased, and the great increase of the tension force not only increases the cost of the tensioning device, but also reduces the service life of the steel wire rope.
For large-scale shore bridges with longer front and rear extension distances, the problems of suspension and bouncing of a main hoisting steel wire rope are solved by arranging a bracket trolley on the sea and land sides of the shore bridge to support the main hoisting winding steel wire rope.
For a single-box girder shore bridge, one conventional design idea is to arrange all steel wire ropes of a bracket trolley winding system on the lower surface of a girder, but the steel wire ropes are arranged on the lower part of the girder, so that the following problems are caused:
firstly, the variation of the steel wire rope is large after the girder is lifted up, the stroke requirement of the oil cylinder for adjusting the tensioning of the steel wire rope is large, and the production cost is increased;
secondly, the related mechanism of the winding system at the lower part of the girder has complex design and high manufacturing requirement;
thirdly, the installation and the later maintenance are inconvenient, the ladder platform needs to be configured to maintain the lower mechanism of the girder, and the production and maintenance cost is high.
Alternatively, the tensioner is disposed on the upper surface of the structural girder and the remaining relevant components of the winding system are disposed below the lower surface of the girder. The lower surface of the structure is provided with a diverting pulley which winds the steel wire rope from the upper surface of the girder to the lower surface of the girder. Although this winding method solves the convenience of maintenance of the tensioning device, the winding of the wire rope is complicated, but the rope length of the wire rope is excessively long.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a bracket trolley winding system for a single-box girder shore bridge, which is used for controlling the suspension amount of a main hoisting steel wire rope from the source and solving the problem that the steel wire rope is easy to bounce.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a bracket trolley winding system for a single-box girder shore bridge comprises a trolley assembly, a bracket trolley, a tensioning device, a pulley block, a tensioning traction steel wire rope, a first steel wire rope and a second steel wire rope, wherein the trolley assembly, the bracket trolley, the tensioning device, the pulley block, the tensioning traction steel wire rope, the first steel wire rope and the second steel wire rope are arranged on the upper surface of a girder structure;
the bracket trolley is provided with two sets which are respectively arranged on the sea side and the land side of the trolley assembly;
the pulley block is provided with two sets which are respectively arranged on the sea side and the land side of the trolley assembly and are positioned on the outer side of the bracket trolley;
the tensioning traction steel wire rope is wound on the two sets of pulley blocks, and two ends of the tensioning traction steel wire rope are respectively connected with the two sets of bracket trolleys;
the first steel wire rope is connected with the land side bracket trolley and the trolley assembly;
the second steel wire rope is connected with the bracket trolley and the trolley assembly at the sea side;
the tensioning device is arranged on the outer side of the pulley block on the land side and is in tensioning fit with the tensioning traction steel wire rope.
Preferably, the trolley assembly is provided with a sea side fastening point and a land side fastening point;
the upper surface of the girder structure is also provided with a steel wire rope fastening point;
the bracket trolley is provided with a fastening point and a pulley assembly;
one end of the tensioning traction steel wire rope is connected with a fastening point on the land side bracket trolley, and the other end of the tensioning traction steel wire rope is connected with a fastening point on the sea side bracket trolley;
the first steel wire rope is wound on a pulley assembly on the land side bracket trolley, one end of the first steel wire rope is connected with a land side fastening point on the trolley assembly, and the other end of the first steel wire rope is connected with the steel wire rope fastening point;
and the second steel wire rope is wound on a pulley assembly on the bracket trolley at the sea side, one end of the second steel wire rope is connected with a sea side fastening point on the trolley assembly, and the other end of the second steel wire rope is connected with the steel wire rope fastening point.
Preferably, each group of pulley blocks comprises a pair of pulleys;
the tensioning device is provided with two sets;
two sea-side fastening points and two land-side fastening points are respectively arranged on the trolley assembly;
two fastening points and two pulley assemblies are arranged on the bracket trolley respectively;
two steel wire rope fastening points are arranged;
the tensioning traction steel wire rope, the first steel wire rope and the second steel wire rope are all provided with two tensioning traction steel wire ropes.
Preferably, the bracket trolley comprises a bracket trolley frame;
the bracket trolley frame is of an inverted hanging structure, wheels are arranged on the upper bottom edge of the bracket trolley frame, and the wheels move along a track on the upper surface of the girder structure; the lower bottom edge is positioned below the girder structure and is provided with a trolley power supply system and a trolley power supply system traction bracket;
the fastening point and the pulley assembly are arranged at the upper bottom edge of the bracket trolley frame.
Preferably, the upper bottom edge of the bracket trolley frame is also provided with a steel wire rope carrier roller assembly and a lifting steel wire rope carrier roller device;
the lifting steel wire rope carrier roller device is arranged at the outer side of the pulley assembly;
the steel wire rope carrier roller assembly is arranged between the fastening point and the pulley assembly.
Preferably, the bracket trolley frame is also provided with a counter roller device and a horizontal wheel device;
the counter roller device is positioned at the lower part of the lower surface of the rail bearing beam of the rail on the upper surface of the girder structure and is matched with the lower surface of the rail bearing beam.
Preferably, the two steel wire rope fastening points are arranged on the upper surface of the girder structure through brackets;
and a hinge point carrier roller device is further arranged on one side of the bracket.
Preferably, the bracket is an L-shaped bracket or a T-shaped bracket.
Preferably, the two brackets are symmetrically arranged along the central line of the upper surface of the girder structure.
Preferably, a plurality of carrier roller sets are further arranged on the upper surface of the girder structure.
The utility model provides a bracket trolley winding system for a single-box girder shore bridge, which also has the following points that
The beneficial effects are that:
1) The steel wire ropes of the bracket trolley winding system for the single-box girder shore bridge are all arranged on the upper part of the upper surface of the girder structure, and the trolley assembly power supply system is arranged on the lower part of the lower surface of the girder structure, so that the interference problem of the winding system and the power supply system caused by small design space can be avoided;
2) The bracket trolley frame is designed in a reverse hanging mode, so that occupied space is reduced.
3) Each mechanism is arranged on the upper part of the upper surface of the girder, so that the installation and maintenance are convenient, and the ladder platform is not required to be configured for maintenance;
4) The bracket trolley structure is designed in a light weight manner, and the section bars are fully utilized to form a frame structure;
5) A bracket (L-shaped or T-shaped) is arranged at the hinge point of the front girder, a hinge point carrier roller device and a sea side steel wire rope fastening point are arranged on the bracket, so that the variation of winding the steel wire rope after the girder is lifted up is effectively reduced, and the stroke of a tensioning oil cylinder is further shortened;
6) In order to prevent the steel wire rope from sagging to the structural surface, small idler sets with proper intervals are arranged on the girder surface to support the sagging steel wire rope.
Drawings
FIG. 1 is a schematic diagram of a frame construction of a pallet dolly winding system for a single girder shore bridge of the present utility model;
FIG. 2 is a schematic view of the carriage trolley of FIG. 1, (a) being a front view and (b) being a side view;
FIG. 3 is a schematic view of the structure of the fastening point of the steel wire rope in FIG. 1, (a) is a front view, and (b) is A-A schematic view in (a);
fig. 4 is a schematic view of a carrier roller set in a carrier trolley winding system for a single-box girder shore bridge according to the present utility model, wherein (a) is a front view, and (b) is A-A schematic view in (a).
Detailed Description
In order to better understand the above technical solution of the present utility model, the technical solution of the present utility model is further described below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 4, the bracket trolley winding system for a single-box girder shore bridge provided by the utility model comprises a trolley assembly 8 arranged on the upper surface of a girder structure 100, two sets of bracket trolleys (a land side bracket trolley 4 and a sea side bracket trolley 14), a tensioning device 1, two sets of pulley blocks, a tensioning traction steel wire rope 2, a first steel wire rope 6 and a second steel wire rope 12.
Land side carrier trolley 4 is located on the land side of trolley assembly 8 and sea side carrier trolley 14 is located on the sea side of trolley assembly 8.
One set of pulley blocks is located on the land side of the trolley assembly 8 and outboard of the land side carrier trolley 4, and the other set of pulley blocks 16 is located on the still-side of the trolley assembly 8 and outboard of the sea side carrier trolley 14.
Each set of pulley sets includes a pair of pulleys symmetrically disposed about the center line of the girder construction 100.
The tensioning device 1 is provided with two sets, the tensioning device 1 adopts an oil cylinder to tension, and the two sets of pulley blocks are respectively and correspondingly positioned on the land side.
The trolley assembly 8 is provided with trolley land side fastening points 7 which are symmetrically arranged towards the side edge of the land side bracket trolley 4 by two girder structures 100, and is provided with trolley sea side fastening points 9 which are symmetrically arranged towards the side edge of the sea side bracket trolley 14 by two girder structures 100.
Two pulley assemblies 5 which are symmetrically arranged relative to the central line of the girder structure 100 are arranged on the land side bracket trolley 4 towards the side edge of the trolley assembly 8, and two fastening points 3 which are symmetrically arranged relative to the central line of the girder structure 100 are arranged towards the side edge of the pulley block.
Two pulley assemblies 13 are arranged on the sea side bracket trolley 14 towards the side edge of the trolley assembly 8 and symmetrically arranged relative to the central line of the girder structure 100, and two fastening points 15 are arranged towards the side edge of the pulley block 16 and symmetrically arranged relative to the central line of the girder structure 100.
Two pairs of brackets 17 are also arranged between the trolley assembly 8 and the sea bracket trolley 14, and each pair of brackets 17 are symmetrically arranged along the central line of the upper surface of the girder structure 100. One side of the bracket 17 is provided with steel wire rope fastening points 10 and 11, and the other side is provided with a hinge point carrier roller device 18. The hinge point carrier roller device is used for preventing the bracket trolley from being interfered with a steel structure or other devices of the steel structure when the bracket trolley winds the steel wire rope and the front girder is lifted up. The upward steel wire rope is contacted with the carrier roller firstly, and keeps a certain distance with a steel structure or other devices on the steel structure to avoid contact or even interference.
The support 17 is set to be an L-shaped support or a T-shaped support, and the hinge point carrier roller device 18 is arranged on the support 17 at a hinge point in consideration of the fact that the hinge point carrier roller device 18 is arranged on an upper cross beam on the sea side to cause large variation of a steel wire rope after the girder is lifted, so that the variation of the steel wire rope can be effectively reduced.
The tensioning traction steel wire ropes 2 are arranged in two, and the winding modes are the same. One end of the tensioning traction steel wire rope 2 is fixed on the fastening point 3, and after being wound around a land pulley block and a sea pulley block 16 in sequence, the other end of the tensioning traction steel wire rope is fixed on the fastening point 15.
The first steel wire ropes 6 are arranged in two, and the winding modes are the same. One end of the first wire rope 6 is fixed to the car land side fastening point 7, and after winding the pulley assembly 5, the other end is fixed to the wire rope fastening point 10.
The number of the second steel wire ropes 12 is two, and the winding modes are the same. One end of the second wire rope 12 is fixed at the sea side fastening point 9 of the trolley, and after being wound around the pulley assembly 13, the other end is fixed at the wire rope fastening point 11.
The land side carrier vehicle 4 and the sea side carrier vehicle 14 each include a carrier vehicle frame 19.
The bracket trolley frame 19 is of an inverted hanging structure, two wheels 20 which are symmetrically arranged relative to the central line of the girder structure 100 are arranged on the upper bottom edge of the bracket trolley frame, and the wheels 20 move along a track 101 on the upper surface of the girder structure 100; the lower bottom edge is positioned below the girder construction 100 and is provided with a trolley power supply system 21 and a trolley power supply system traction bracket 22.
The fastening points 3, 15 and the pulley arrangements 5, 13 are mounted on the upper bottom edge of the carriage trolley frame 19.
The upper bottom edge of the bracket trolley frame 19 is also provided with a steel wire rope carrier roller assembly 23 and a lifting steel wire rope carrier roller device 24. The wire rope idler assembly 23 is used for supporting the bracket trolley to wind the head wire rope to the tail wire rope, and preventing the wire rope from being scratched and ground on the bracket trolley structure. The function of the lifting wire rope idler assembly 24 is to lift the lifting winding wire rope and prevent the lifting wire rope from sagging excessively.
The lifting wire rope idler device 24 is located at the outer side of the pulley assemblies 5 and 13.
The wire rope idler assembly 23 is located between the fastening points 3, 15 and the pulley assemblies 5, 13.
The bracket trolley frame 19 is also provided with a counter roller device 25 and a horizontal wheel device 26. The counter roller means 25 acts to limit the range of the pallet truck jump. The function of the horizontal wheel device 26 is to prevent the bracket trolley from deviating left and right and prevent the wheel rim from biting the rail due to the deviation.
The counter roller means 25 cooperates with a rail 101 on the upper surface of the girder construction 100.
In order to prevent the self-tensioning and traction steel wire ropes of the bracket trolley winding system for the single-box girder shore bridge from naturally suspending the upper surface of the girder 100 with an excessive friction structure, the upper surface of the girder structure 100 is also provided with a plurality of carrier roller groups 27 for supporting the suspended steel wire ropes (mainly the steel wire ropes of the bracket trolley winding system, namely the tensioning and traction steel wire ropes, a first steel wire rope and a second steel wire rope), the intervals among the carrier roller groups 27 are reasonably arranged according to the length of the steel wire ropes, and the left side and the right side are symmetrically arranged relative to the central line of the girder structure 100.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.
Claims (10)
1. A single case girder is bracket dolly winding system for bank bridge which characterized in that: the device comprises a trolley assembly, a bracket trolley, a tensioning device, a pulley block, a tensioning traction steel wire rope, a first steel wire rope and a second steel wire rope, wherein the trolley assembly, the bracket trolley, the tensioning device, the pulley block and the tensioning traction steel wire rope are arranged on the upper surface of a girder structure;
the bracket trolley is provided with two sets which are respectively arranged on the sea side and the land side of the trolley assembly;
the pulley block is provided with two sets which are respectively arranged on the sea side and the land side of the trolley assembly and are positioned on the outer side of the bracket trolley;
the tensioning traction steel wire rope is wound on the two sets of pulley blocks, and two ends of the tensioning traction steel wire rope are respectively connected with the two sets of bracket trolleys;
the first steel wire rope is connected with the land side bracket trolley and the trolley assembly;
the second steel wire rope is connected with the bracket trolley and the trolley assembly at the sea side;
the tensioning device is arranged on the outer side of the pulley block on the land side and is in tensioning fit with the tensioning traction steel wire rope.
2. The pallet truck wrapping system for a single box girder shore bridge of claim 1, wherein: the trolley assembly is provided with a sea side fastening point and a land side fastening point;
the upper surface of the girder structure is also provided with a steel wire rope fastening point;
the bracket trolley is provided with a fastening point and a pulley assembly;
one end of the tensioning traction steel wire rope is connected with a fastening point on the land side bracket trolley, and the other end of the tensioning traction steel wire rope is connected with a fastening point on the sea side bracket trolley;
the first steel wire rope is wound on a pulley assembly on the land side bracket trolley, one end of the first steel wire rope is connected with a land side fastening point on the trolley assembly, and the other end of the first steel wire rope is connected with the steel wire rope fastening point;
and the second steel wire rope is wound on a pulley assembly on the bracket trolley at the sea side, one end of the second steel wire rope is connected with a sea side fastening point on the trolley assembly, and the other end of the second steel wire rope is connected with the steel wire rope fastening point.
3. The pallet truck wrapping system for a single box girder shore bridge of claim 2, wherein: each group of pulley blocks comprises a pair of pulleys;
the tensioning device is provided with two sets;
two sea-side fastening points and two land-side fastening points are respectively arranged on the trolley assembly;
two fastening points and two pulley assemblies are arranged on the bracket trolley respectively;
two steel wire rope fastening points are arranged;
the tensioning traction steel wire rope, the first steel wire rope and the second steel wire rope are all provided with two tensioning traction steel wire ropes.
4. The pallet truck wrapping system for a single box girder shore bridge of claim 2, wherein: the bracket trolley comprises a bracket trolley frame;
the bracket trolley frame is of an inverted hanging structure, wheels are arranged on the upper bottom edge of the bracket trolley frame, and the wheels move along a track on the upper surface of the girder structure; the lower bottom edge is positioned below the girder structure and is provided with a trolley power supply system and a trolley power supply system traction bracket;
the fastening point and the pulley assembly are arranged at the upper bottom edge of the bracket trolley frame.
5. The pallet truck wrapping system for a single box girder shore bridge of claim 4, wherein: the upper bottom edge of the bracket trolley frame is also provided with a steel wire rope carrier roller assembly and a lifting steel wire rope carrier roller device;
the lifting steel wire rope carrier roller device is arranged at the outer side of the pulley assembly;
the steel wire rope carrier roller assembly is arranged between the fastening point and the pulley assembly.
6. The pallet truck wrapping system for a single box girder shore bridge of claim 4, wherein: the bracket trolley frame is also provided with a counter roller device and a horizontal wheel device;
the counter roller device is positioned at the lower part of the lower surface of the rail bearing beam of the rail on the upper surface of the girder structure and is matched with the lower surface of the rail bearing beam.
7. A pallet truck wrapping system for a single box girder shore bridge according to claim 3, characterized in that: the two steel wire rope fastening points are arranged on the upper surface of the girder structure through brackets;
and a hinge point carrier roller device is further arranged on one side of the bracket.
8. The pallet truck wrapping system for a single box girder shore bridge of claim 7, wherein: the bracket is an L-shaped bracket or a T-shaped bracket.
9. The pallet truck wrapping system for a single box girder shore bridge of claim 7, wherein: the two brackets are symmetrically arranged along the central line of the upper surface of the girder structure.
10. The pallet truck wrapping system for a single box girder shore bridge of claim 1, wherein: and a plurality of carrier roller sets are further arranged on the upper surface of the girder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320841999.7U CN219239069U (en) | 2023-04-14 | 2023-04-14 | Bracket trolley winding system for single-box girder shore bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320841999.7U CN219239069U (en) | 2023-04-14 | 2023-04-14 | Bracket trolley winding system for single-box girder shore bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239069U true CN219239069U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320841999.7U Active CN219239069U (en) | 2023-04-14 | 2023-04-14 | Bracket trolley winding system for single-box girder shore bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219239069U (en) |
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- 2023-04-14 CN CN202320841999.7U patent/CN219239069U/en active Active
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