Heavy-load transverse moving system

Abstract

The utility model provides a heavy-load transverse moving system, which belongs to the technical field of bridge construction and comprises a stabilizing structure, a sliding structure and a power structure. The stabilizing structure comprises a tower top cross beam and a wind cable; the sliding structure comprises a slideway, a sliding trolley, a polyfluortetraethylene plate and a limiting pulley; the power structure is arranged to be jack-finish rolling deformed steel bar tensioning equipment. A tower top cross beam and a wind cable are adopted as a heavy-load transverse movement stabilizing structure, so that the stability of a heavy-load transverse movement system is effectively guaranteed; paraffin oil is smeared between the sliding way and the sliding rail of the sliding trolley and between the polyfluortetraethylene plate and the stable structure for lubrication, so that stable, constant-speed sliding and flexible sliding of the sliding structure are guaranteed. The cross-core jack and the matched high-pressure oil pump equipment are adopted as a transverse moving traction power structure, so that the sliding structure is effectively ensured to be uniform in speed and smooth without being clamped during transverse moving.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field relates to a kind of heavy load horizontal moving system in cable hoisting process. BACKGROUND

[0002] Cable hoisting system is a kind of hoisting machine often seen when building arch bridge, suspension bridge in mountainous valley. However, when cable hoisting system needs to be applied in the position of limited site in mountainous valley, the processed beam, arch rib segment cannot be transported to the arch rib central axis of bridge design hoisting, and the traditional heavy load horizontal moving structure is slide type sliding structure, and the slide ship type cable saddle heavy load horizontal moving structure is still in the process of trying, and the technology is not mature enough. CONTENT OF UTILITY MODEL

[0003] In order to solve the technical problem that the cable hoisting system in the prior art cannot be installed in the position of limited site in mountainous valley due to the fact that the processed beam, arch rib segment cannot be transported to the arch rib central axis of bridge design hoisting, the utility model provides a heavy load horizontal moving system of slide ship type cable saddle cable hoisting system.

[0004] The utility model provides a kind of heavy load horizontal moving system, the heavy load horizontal moving system includes the stable structure being arranged in the tower of slide ship type cable saddle cable hoisting system, the sliding structure being connected with stable structure and the power structure for driving sliding structure relative to stable structure sliding;

[0005] The stable structure is provided with two groups corresponding to two towers respectively;The sliding structure is provided with two groups corresponding to two groups of stable structures respectively;

[0006] The power structure is arranged as fine rolled threaded steel tensioning equipment, and the power structure is provided with two groups corresponding to two groups of sliding structures respectively.

[0007] Optionally, a single set of the stable structure includes a tower top cross beam, a limiting baffle and a wind cable;The tower top cross beam is installed on the upper end face of the tower in the slide ship type cable saddle cable hoisting system;The limiting baffle is arranged on the side surface of the tower top cross beam;One end of the wind cable is hingedly connected to a single tower through a wire rope jack, and the other end of the wind cable is connected to a ground anchor through a hook pulley.

[0008] Optionally, the limiting baffle is provided with two pieces arranged on two mutually parallel side surfaces of the tower top cross beam, both limiting baffles are arranged along the length direction of the tower top cross beam, and one end of both limiting baffles is connected to the upper end face of the tower top cross beam, and the other end of both limiting baffles is arranged along the height direction and extends away from the tower top cross beam.

[0009] Optionally, a reinforcing rib group is further arranged between the single piece limiting baffle and the tower top cross beam, and the single reinforcing rib group is provided with multiple pieces of reinforcing ribs which are arranged at intervals along the extension direction of the limiting baffle.

[0010] Optionally, the two pieces of wind cables arranged in the two groups of stabilizing structures are arranged in a splayed manner, and the included angle between the two pieces of wind cables is 45°-60°.

[0011] Optionally, the single group of sliding structures comprises a slide, a sliding trolley, a polytetrafluoroethylene plate and a limiting pulley which are arranged on the upper end surface of the tower top cross beam.

[0012] The slide is arranged on the upper end surface of the tower top cross beam.

[0013] The sliding trolley is slidingly arranged on the slide, and the sliding trolley is connected with the power structure.

[0014] Optionally, a layer of paraffin oil is further arranged between the slide and the polytetrafluoroethylene plate.

[0015] A wear-resistant polytetrafluoroethylene plate is further arranged at the bottom of the sliding trolley.

[0016] Limiting pulleys are arranged on the two side end surfaces of the sliding trolley, and the outer surfaces of the two limiting pulleys are connected with the two limiting baffles in a contact manner.

[0017] Compared with the prior art, the heavy load transverse moving system has the following beneficial effects:

[0018] (1) The heavy load transverse moving system provided by the utility model effectively guarantees the stability of the heavy load transverse moving system by adopting the tower top cross beam and the wind cable as the heavy load transverse moving stabilizing structure; the slide and the sliding trolley are adopted as the sliding structure, the polytetrafluoroethylene plate is arranged at the bottom of the sliding trolley, the limiting pulley is arranged on the side surface of the sliding trolley, the 301 stainless steel plate is arranged on the slide, and the paraffin oil is applied for lubrication between the slide and the slide rail of the sliding trolley and between the polytetrafluoroethylene plate and the stabilizing structure, so as to guarantee the smooth, uniform and flexible sliding of the sliding structure; the through center jack, the matched high pressure oil pump equipment, the in-place rolled threaded steel and the counterforce support frame are adopted as the transverse moving traction power structure, so as to effectively guarantee the uniform and smooth transverse moving of the sliding structure without being blocked.

[0019] (2) The heavy load transverse moving system provided by the utility model saves the cost of site excavation, filling, masonry, site hardening and other special platform facilities by overcoming the problem that the conventional empty load transverse moving needs an open and flat site to ensure that the beam, arch and other hoisted objects are transported to the special operation platform below the vertical hoisting, thereby increasing the construction speed and reducing the use time of equipment and materials, so as to save the cost.

[0020] (3) The heavy load transverse moving system provided by the utility model overcomes the security risks existing in the large-angle swinging of the heavy object hoisted in the fixed cable saddle and the bias pulling and oblique hoisting.

[0021] (4) The heavy load transverse moving system provided by the utility model has green and environmental protection benefits in bridge engineering construction, and in the conventional hoisting, the open and flat site is needed to ensure that the hoisted object such as the beam and arch is transported to the special operation platform below the vertical hoisting, so as to reduce the environmental damage caused by the large excavation and construction of the mountain and ensure the integrity of the original topography.

[0022] (5) In the heavy load transverse moving system provided by the utility model, the paraffin oil plays a great role in the operation of the utility model. The paraffin oil is a self-made lubricating grease, and the formula quality ratio is paraffin: engine oil = 1:1. The paraffin is first melted by high temperature, and then the engine oil is timely mixed and stirred. The paraffin is timely brushed on the surface of the stainless steel slide before the paraffin is solidified. Since the paraffin is a solid material, the paraffin oil brushed on the slide can be solidified on the slide in a short time to form a layer of solid oil. When the solid oil is subjected to upward and downward extrusion, a certain resistance is generated. Compared with other more diluted oils, the effect of the self-made paraffin oil is very obvious.

[0023] (6) In the heavy load transverse moving system provided by the utility model, the side horizontal limiting wheel plays a great role in the operation of the utility model. Since the included angles between the tower and the back cable and between the tower and the bearing cable in the span are different, the horizontal thrust received by the cable saddle is greatly increased in the hoisting process, which greatly increases the friction resistance of the transverse movement of the cable saddle. The side horizontal limiting wheel replaces the sliding friction by rolling friction, thereby reducing the friction resistance. The side horizontal limiting wheel plays a crucial role in the utility model.

[0024] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described below with reference to the drawings. DRAWINGS

[0025] The drawings constituting a part of the application are used to provide further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:

[0026] Figure 1 is the overall structure schematic view of the heavy load transverse moving system in the utility model embodiment;

[0027] Figure 2 is Figure 1 the side view schematic view of the stabilizing structure in the utility model;

[0028] Figure 3 is Figure 1Partial view of the interconnection between the stabilizing structure and the sliding structure;

[0029] Figure 4 is Figure 3 Partial view of the interconnection between the stabilizing structure and the sliding structure;

[0030] wherein:

[0031] 0, tower, 1, tower top beam, 2, limit baffle, 3, wind cable, 4, sliding structure, 4.1, sliding trolley, 4.2, cable saddle, 4.3, polytetrafluoroethylene plate, 4.4, limit pulley, 4.5, stainless steel plate slide, 5, power structure. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the utility model more clear and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings. It should be noted that the drawings of the utility model all adopt a simplified form and all use non-accurate proportions, and are only used to facilitate and clearly assist in explaining the implementation of the utility model; the number of several mentioned in the utility model is not limited to the specific number in the drawing example; the directions or position relationships mentioned in the utility model such as 'front','middle','rear', 'left', 'right', 'top', 'bottom', 'top', 'bottom','middle' are all based on the directions or position relationships shown in the drawings of the utility model, and do not indicate or imply that the devices or parts referred to must have a specific direction, and cannot be understood as a limitation on the utility model.

[0033] EMBODIMENT

[0034] Referring to Figures 1 to 4 As shown in the drawings, the heavy-load transverse moving system provided by the utility model comprises a stabilizing structure arranged on a tower 0 in a sliding-boat type cable saddle cable hoisting system, a sliding structure 4 connected with the stabilizing structure, and a power structure 5 for driving the sliding structure 4 to slide relative to the stabilizing structure.

[0035] Preferably, the stabilizing structure is provided with two groups of stabilizing structures corresponding to two towers 0 respectively, the sliding structure 4 is provided with two groups of sliding structures corresponding to the two groups of stabilizing structures respectively, and the power structure 5 is provided with two groups of power structures corresponding to the two groups of sliding structures 4 respectively.

[0036] Further, the stabilizing structure comprises a tower top beam 1, a limit baffle 2 and a wind cable 3; the tower top beam 1 is installed on the upper end face of the tower 0 in the sliding-boat type cable saddle cable hoisting system; the limit baffle 2 is arranged on the side face of the tower top beam 1; one end of the wind cable 3 is hingedly connected with the single tower 0 through a wire rope jack, and the other end of the wind cable 3 is connected with a ground anchor through a hook pulley.

[0037] Preferably, the limiting baffle 2 is provided with two pieces respectively arranged on the two mutually parallel sides of the tower top beam 1, both of which extend along the length direction of the tower top beam 1 and are connected to the upper end surface of the tower top beam 1 at one end, and extend away from the tower top beam 1 at the other end.

[0038] Preferably, in order to increase the strength of the limiting baffle 2, a reinforcing rib group is arranged between the single-piece limiting baffle and the tower top beam 1, and the single reinforcing rib group is provided with multiple pieces arranged at intervals along the extension direction of the limiting baffle 2.

[0039] Preferably, the two wind cables 3 arranged in the two groups of stabilizing structures are arranged in a splayed manner, and the ideal included angle between the two wind cables 3 and the tower 0 should be set to 45°-60°.

[0040] Further, a single group of the sliding structure 4 includes a stainless steel plate slide 4.5, a sliding trolley 4.1, a polytetrafluoroethylene plate 4.3, and a limiting pulley 4.4 mounted on the upper end surface of the tower top beam 1; the slide is arranged on the upper end surface of the tower top beam 1, the sliding trolley 4.1 is connected to the power structure 5, so that the sliding trolley 4.1 is slidably connected to the slide, a wear-resistant polytetrafluoroethylene plate 4.3 is further arranged at the bottom of the sliding trolley 4.1, limiting pulleys are arranged on both side end surfaces of the sliding trolley 4.1, the outer surfaces of the two limiting pulleys are respectively connected to the two limiting baffles 2 in a contact manner, so that the horizontal thrust generated during hoisting is reduced when the included angle between the tower and the back cable and the midspan load-bearing cable is not the same, and the increased frictional resistance is reduced. At the same time, the deviation of the sliding trolley 4.1 is also prevented.

[0041] Preferably, a layer of paraffin oil is arranged between the slide and the polytetrafluoroethylene plate 4.3 to increase the lubrication between the slide and the polytetrafluoroethylene plate 4.3. Self-made paraffin oil is brushed between the polytetrafluoroethylene plate 4.3 and the stainless steel plate slide 4.5.

[0042] Preferably, in order to realize the connection between the sliding trolley 4.1 and the sliding ship type cable saddle hoisting system, a plurality of connecting pulleys and a cable saddle 4.2 are further arranged on the sliding trolley 4.1, and the sliding ship type cable saddle hoisting system is connected to the sliding trolley 4.1 through the cable saddle 4.2.

[0043] Further, a single group of the power structure 5 is provided as a through-center jack and a matching high-pressure oil pump device, a finished rolled threaded steel, a counterforce support frame, and other tensioning facilities.

[0044] Preferably, according to actual needs, a single group of the power structure 5 can be provided with one or more than two pieces arranged at intervals.

[0045] As a further embodiment of the utility model, the utility model also provides a method for constructing the sliding-boat type heavy-load transverse moving system in the cable hoisting system, which comprises the following steps:

[0046] Step one, preliminary preparation;

[0047] Before construction, the stability and load calculation of the tower top cross beam, the sliding trolley and the tower in the sliding-boat type cable saddle cable hoisting system are carried out;

[0048] Detailed construction scheme and plan book are formulated based on the actual situation, scheme drawings are drawn, safety guarantee measures are prepared, and heavy-load transverse moving construction process and technical requirements are clarified;

[0049] The materials for preparing the heavy-load transverse moving system are prepared, and the materials are cut and manufactured according to the requirements of the scheme drawings;

[0050] The preliminary preparation work is completed.

[0051] Step two, installation of the heavy-load transverse moving system;

[0052] S2.1, installation of the stable structure;

[0053] ①, the tower top cross beam is divided into a standard section, a transition section, a reinforcing section, a cross support section and a column cap section; and the tower top cross beam is integrally assembled and then hoisted to the installation position;

[0054] ②, the tower is installed to the column cap section, and then three distribution beams are installed along the bridge direction at the column cap section (the connection mode between the column cap section and the distribution beam is that the top plate in the column cap section and the bottom steel plate in the distribution beam are connected with each other in a full welding mode); specifically, the distribution beam is arranged as a box girder stress combination formed by welding steel plates of different specifications and models;

[0055] ③, the top plate in the distribution beam and the other bottom plates in the tower top cross beam are connected with each other in a full penetration welding mode, and the installation of the tower top cross beam is completed;

[0056] ④, the tower top cross beam is leveled; specifically, before the tower top is capped, since there may be a length deviation of 1-2 CM at each column head position of the tower, the elevation of each column head is measured by using a level, the elevation of each column head is made to reach the same height by adding a pad plate at the position of the remaining column head according to the highest point column head elevation, since the two bank cable towers are located at the central axis position of the cable tower and are in a parallel state, the central point position and the elevation of the distribution beam are measured by using a total station instrument, and the tower top cross beam is placed in a position perpendicular to the distribution beam during installation, and if there is an elevation error during installation, a pad plate is added under the tower top cross beam;

[0057] ⑤, limit stop plates and wind cables are installed on the tower top cross beam in sequence, and the installation of the stable structure is completed.

[0058] S2.2, install the sliding structure and the power structure;

[0059] ①, install the slide on the tower top beam; specifically, the slide is provided as a steel box structure formed by welding steel plates, and a limiting device is arranged on the slide, and a sliding slide is welded on the sliding surface of the slide, and self-made paraffin oil is applied on the sliding slide to ensure that the friction coefficient of the slide surface is less than 0.15; at the same time, in order to ensure that the cable crane bearing cable system can be positioned at any time during transverse movement, triangular limiting wedge blocks are arranged on the sliding slide, the positioning saddle is positioned and the saddle is prevented from moving;

[0060] ②, assemble the sliding trolley, the polytetrafluoroethylene plate and the limiting pulley to form a sliding assembly;

[0061] ③, install a stainless steel slide that cooperates with the sliding slide at the bottom of the sliding assembly, and apply paraffin oil on the stainless steel slide for lubrication;

[0062] ④, use a group of threaded holes reserved at the bottom of the sliding trolley to pass two pieces of 7.5-meter-long finished rolled threaded steel and one piece of 8-meter-long finished rolled threaded steel (the finished rolled threaded steel is part of the jack-finished rolled threaded steel tensioning equipment) through the connecting sleeve to form a whole before the finished rolled nuts are sleeved on both sides of the sliding trolley, then the two ends of the finished rolled threaded steel are sequentially threaded through the clamping plate and the jack counterforce seat in the jack-finished rolled threaded steel tensioning device, and then the hydraulic jack is installed; it should be noted that when the hydraulic jacks at both ends of the tower top beam are installed, the inner core of one end of the jack should be in a jacking state, and the other end should remain stationary, and finished rolled nuts are installed on the outside of the two jacks, so that when the sliding trolley moves horizontally, the inner core of the jack in the jacking state falls back to retract the finished rolled threaded steel and tighten the finished rolled nuts (the threaded steel needs to be pre- lengthened to facilitate tensioning and retraction as well as movement of the cable saddle), and the other end of the jack starts to jacking tensioning the threaded steel and loosening the finished rolled nuts. When the sliding trolley moves horizontally, it is necessary to manually rotate the position of each finished rolled nut in time to prevent the cable saddle arranged on the sliding trolley from being stuck during horizontal movement and affecting horizontal movement. However, the nut cannot be turned too far when turning the nut. If the saddle suddenly slides when moving from the center of the beam to the edge, the mechanism principle between the rear anchor and the cable saddle will be similar to that of a bow. Therefore, in order to ensure that the limiting finished rolled nut cannot be moved too much at one time. When the saddle is moved horizontally to the predetermined position, the nut is tightened to fix the position of the saddle and the hydraulic jack.

[0063] As a further embodiment of the present application, after the heavy load transverse movement system is installed by the above construction method, the heavy load transverse movement system is tested and actually hoisted:

[0064] Before the test, the test platform and the test object are placed at the lifting position, the saddle transverse trolley is transversely moved to the corresponding lifting point in the empty state, and the load test of 50%, 100% and 110% of the maximum lifting weight 104.2T of the steel pipe arch rib is carried out during the test, and after the step-by-step loading, the test objects of different weights are respectively transversely moved at the front of the tower 30m, the middle of the tower and the front of the tower 20m on the flat pond.

[0065] The test results show that the transverse tower is within 1cm, the transverse movement is smooth, the friction is small, the tension force of the jack-precision rolled thread steel tensioning equipment is small, the implementability of the heavy load transverse movement is verified, and the heavy load transverse movement has good stability, high safety performance, strong economy, simple operation, convenience, wide application, etc.

[0066] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heavy load traversing system, characterized in that, The heavy load transverse moving system comprises a stabilizing structure arranged on a tower in a sliding boat type cable saddle cable hoisting system, a sliding structure (4) connected with the stabilizing structure, and a power structure (5) for driving the sliding structure (4) to slide relative to the stabilizing structure; The stabilizing structure is provided with two groups of stabilizing structures respectively connected with two towers; The power structure (5) is arranged as a finished rolled threaded steel tensioning device, and the power structure (5) is provided with two groups of power structures respectively corresponding to the two groups of sliding structures (4).

2. The heavy-duty traversing system of claim 1, wherein, The single group of stabilizing structures comprises a tower top cross beam (1), a limiting baffle (2), and a wind cable (3); the tower top cross beam (1) is installed on the upper end surface of the tower in the sliding boat type cable saddle cable hoisting system; the limiting baffle (2) is arranged on the side surface of the tower top cross beam (1); one end of the wind cable (3) is hingedly connected with the single tower through a wire rope jack, and the other end of the wind cable (3) is connected with a ground anchor through a hook pulley.

3. The heavy-duty traversing system of claim 2, wherein, The limiting baffle (2) is provided with two pieces arranged on the two mutually parallel side surfaces of the tower top cross beam (1); the two pieces of limiting baffles (2) are both arranged along the length direction of the tower top cross beam (1), and one end of each of the two pieces of limiting baffles (2) is connected with the upper end surface of the tower top cross beam (1), and the other end of each of the two pieces of limiting baffles (2) is arranged along the height direction and extends away from the tower top cross beam (1).

4. The heavy-duty traversing system of claim 3, wherein, A group of reinforcing ribs are arranged between the single limiting baffle and the tower top cross beam (1), and the group of reinforcing ribs are provided with a plurality of pieces of reinforcing ribs arranged at intervals along the extension direction of the limiting baffle (2).

5. The heavy-duty traversing system of claim 3, wherein, The two pieces of wind cables (3) arranged in the two groups of stabilizing structures are arranged in a figure-eight shape, and the included angle between the two pieces of wind cables (3) is arranged to be 45°-60°.

6. A heavy load traversing system according to any one of claims 2-5, characterized in that, The single group of sliding structures (4) comprises a slide, a sliding trolley (4.1), a polytetrafluoroethylene plate (4.3), and a limiting pulley, which are all installed on the upper end surface of the tower top cross beam (1); The slide is arranged on the upper end surface of the tower top cross beam (1); The sliding trolley (4.1) is slidingly installed on the slide, and the sliding trolley (4.1) is connected with the power structure (5).

7. The heavy-duty traversing system of claim 6, wherein, A layer of paraffin oil is arranged between the slide and the polytetrafluoroethylene plate (4.3); A wear-resistant polytetrafluoroethylene plate (4.3) is arranged at the bottom of the sliding trolley (4.1); Limiting pulleys are arranged on the two side end surfaces of the sliding trolley (4.1), and the outer surfaces of the two pieces of limiting pulleys are respectively connected with the two pieces of limiting baffles (2) in a contact manner.

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