CN115162750A - Steel box girder system of sliding - Google Patents
Steel box girder system of sliding Download PDFInfo
- Publication number
- CN115162750A CN115162750A CN202211041796.6A CN202211041796A CN115162750A CN 115162750 A CN115162750 A CN 115162750A CN 202211041796 A CN202211041796 A CN 202211041796A CN 115162750 A CN115162750 A CN 115162750A
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- Prior art keywords
- sliding
- block
- limiting
- positioning column
- hydraulic
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of buildings, in particular to a steel box girder sliding system. The device comprises a sliding track, a joist, a hydraulic mechanism and a sliding seat. The lower rail surface of the sliding rail is provided with reference blocks which are uniformly arranged at intervals along the length direction of the sliding rail. The joist is located the last rail surface of slip track. One end of the hydraulic mechanism is hinged to the joist, the other end of the hydraulic mechanism is hinged to the sliding seat, and the sliding seat is slidably matched with the sliding track. The sliding seat is provided with a limiting mechanism and a rail holding mechanism. The limiting mechanism is provided with a limiting block and a transmission assembly, the transmission assembly is used for connecting the limiting block with the hydraulic mechanism in a transmission mode, and when the hydraulic mechanism extends, the hydraulic mechanism pushes the limiting block to move towards the reference block so that the limiting block is attached to one side of the reference block in the sliding direction. The anti-skidding device can effectively avoid skidding in the skidding process, reduces abrasion to the skidding track, strengthens the skidding track, improves the stability of the skidding operation and prolongs the service life of the skidding track.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a steel box girder sliding system.
Background
The steel box girder is a commonly used building structure, and in the building construction process, the steel box girder is frequently required to be subjected to sliding operation. However, the efficiency of the existing slipping means is low, and the slipping phenomenon often occurs in the slipping operation process, which seriously affects the construction efficiency. In addition, the slip phenomenon frequently occurs to severely wear the slip rail, and the probability of the slip phenomenon occurring at the same position is higher in the subsequent construction process.
In view of this, the present application is specifically made.
Disclosure of Invention
The invention aims to provide a steel box girder sliding system which can effectively avoid sliding in the sliding process, greatly improve the construction efficiency, reduce the abrasion to a sliding rail, effectively reinforce the sliding rail, improve the stability of sliding operation and prolong the service life of the sliding rail.
The embodiment of the invention is realized by the following steps:
a steel box girder skidding system comprising: the device comprises a sliding track, a joist, a hydraulic mechanism and a sliding seat.
The lower rail surface of the sliding rail is provided with reference blocks, the reference blocks are arranged at equal intervals along the length direction of the sliding rail, the reference blocks are positioned on one side, close to the rail web, of the lower rail surface, and the reference blocks are connected with the lower rail surface and the rail web simultaneously. The joist is located the upper rail face of track that slides.
One end of the hydraulic mechanism is hinged with the joist, the other end is hinged with the sliding seat, and the sliding seat can be matched with the sliding track in a sliding way.
The sliding seat is provided with a limiting mechanism and a rail holding mechanism. The limiting mechanism is provided with a limiting block and a transmission assembly, the transmission assembly is used for connecting the limiting block with the hydraulic mechanism in a transmission mode, and when the hydraulic mechanism extends, the hydraulic mechanism pushes the limiting block to move towards the reference block so that the limiting block is attached to one side of the reference block in the sliding direction.
Further, stop gear still includes: spacing arm and control lever. Spacing arm fixed connection slides the seat and sets up along orbital length direction that slides, and spacing arm has first inner chamber, and first inner chamber extends and runs through to the one end that spacing arm is close to transmission assembly along the length direction of spacing arm.
The control rod is slidably received in the first lumen. The control rod is provided with a first reference wall surface, a guide wall surface and a second reference wall surface, the first reference wall surface and the second reference wall surface are arranged along the axial direction of the control rod and are parallel to each other, and the distance from the first reference wall surface to the axis of the control rod is smaller than the distance from the second reference wall surface to the axis of the control rod. The guide wall surface is connected between the first reference wall surface and the second reference wall surface.
The top of the side wall of the limiting arm is provided with an installation through hole, and the limiting block can be matched with the installation through hole in a sliding mode. The transmission assembly is in transmission fit with the control rod and used for driving the control rod to slide. When the limiting block is in contact with the first reference wall surface, the limiting block is accommodated in the limiting arm. When the limiting block is contacted with the second reference wall surface, the limiting block extends out of the limiting arm and is attached to one side, facing the sliding direction, of the reference block.
Furthermore, the hydraulic mechanism is used for being provided with reference column and extension post with the articulated one end of seat that slides. The extending column is arranged perpendicular to the positioning column, and one end of the extending column is fixedly connected to the side wall of the positioning column.
The end face of one end, far away from the positioning column, of the extending column is provided with a second inner cavity, and the second inner cavity extends along the axial direction of the extending column and extends to the positioning column. The positioning column is provided with a radial through hole which communicates the outside with the second inner cavity. The radial through hole is slidably matched with the pushing block, the outer side wall of the positioning column is provided with a reset rubber layer, the reset rubber layer extends along the circumferential direction of the positioning column and covers a part of the radial through hole, and two ends of the reset rubber layer are fixedly connected to the positioning column respectively.
The extension post is provided with the backstop flange, and the backstop flange is located the oral area of second inner chamber. The hydraulic rod is slidably matched in the second inner cavity, and the head of the hydraulic rod is provided with an annular bulge which is used for abutting against the stop flange so as to prevent the hydraulic rod from being separated. The distance from the annular projection to the end of the hydraulic rod is less than the distance from the stop flange to the end of the second cavity. The transmission assembly is in transmission fit with the exposed part of the pushing block.
When the hydraulic rod extends, the hydraulic rod pushes the pushing block to extend out, and the pushing block drives the control rod through the transmission assembly. When the hydraulic rod contracts, the pushing block returns to the radial through hole under the elastic action of the reset rubber layer.
Furthermore, the radial through hole extends along the axial direction of the positioning column to form a strip-shaped hole, and the reset rubber layer is arranged in the middle of the positioning column and covers the middle of the radial through hole.
Furthermore, the positioning column and the extension column are both cylindrical, the inner end wall of the second inner cavity is arc-shaped and coaxial with the side wall of the positioning column, and the radial through holes are formed in the inner end wall of the second inner cavity. The end part of the hydraulic rod is matched with the inner end wall of the second inner cavity.
Further, the transmission assembly includes: an extension arm and a drive block.
The two groups of extension arms extend out of the end part of the sliding seat towards the hydraulic mechanism, the positioning column is arranged between the two groups of extension arms, and two ends of the positioning column are respectively hinged with the two groups of extension arms. One end of the extension arm, which is far away from the hydraulic mechanism, extends to the end part of the limit arm.
The opposite side of two sets of extension arms has seted up the spout, and spout one end extends to the reference column, and the other end extends to the tip of spacing arm, spout and first inner chamber intercommunication. The transmission block is slidably matched in the sliding groove.
When the hydraulic rod extends, the hydraulic rod pushes the pushing block to extend out, and the pushing block drives the control rod through the transmission block.
Further, the transmission assembly further comprises: an air pressure device. The pneumatic device comprises a first elastic telescopic cover, a second elastic telescopic cover and a middle shell. The middle shell is made of hard materials, is of a hollow structure and is accommodated at one end, close to the limiting arm, of the sliding groove, and the middle shell extends to the first inner cavity.
The middle shell is close to the one end of transmission piece and has been seted up first opening, and first elastic expansion cover is located first opening and is sealed it, and first elastic expansion cover offsets with the transmission piece. The end of the middle shell close to the control rod is provided with a second opening, a second elastic telescopic cover is covered on the second opening to seal the second opening, and the second elastic telescopic cover is abutted to the control rod.
Furthermore, the air compressor is packaged in the sliding groove by a hard cover.
Further, one end of the control rod, which is far away from the air pressure device, is provided with a return spring for pushing the control rod to return when the hydraulic rod contracts.
Furthermore, the end face of one end of the transmission block, which is close to the positioning column, is arc-shaped, the axis corresponding to the end face of the transmission block is parallel to the axis of the positioning column, and the curvature of the end face of the transmission block is the same as that of the arc face of the end part of the pushing block after the pushing block extends out.
The technical scheme of the embodiment of the invention has the beneficial effects that:
in the specific working process of the steel box girder sliding system provided by the embodiment of the invention, when the steel box girder needs to be subjected to sliding operation, the steel box girder is placed on the joist, one end of the hydraulic mechanism is hinged to one side of the joist far away from the sliding advancing direction, and the sliding seat is arranged at one end of the hydraulic mechanism far away from the joist.
When beginning to slide, the rail mechanism of embracing of control seat of sliding will slide the track and embrace tightly, then control hydraulic pressure mechanism and extend, and at this moment, hydraulic pressure mechanism promotes the stopper and moves towards the benchmark piece, and the stopper laminating is in one side of benchmark piece orientation slip direction, and the stopper can prevent to slide the seat and remove to the one side of keeping away from the joist to avoid the seat of sliding to skid, the position of the seat of sliding on the track of sliding is fixed.
As the hydraulic mechanism continues to extend, the hydraulic mechanism applies tension between the slide mount and the joist, moving the slide mount and the joist away from each other, and as the position of the slide mount on the slide track is fixed, the joist is successfully pushed forward along the slide track.
When the hydraulic mechanism is in a completely extended state, the rail clamping mechanism is controlled to release the clamping state, the sliding track is released, the hydraulic mechanism is controlled to contract, the limiting block retracts and is separated from the reference block, when the hydraulic mechanism continuously contracts, the sliding seat is pulled towards one side of the joist by the hydraulic mechanism, and the sliding seat slides along the sliding track to the joist.
So far, once sliding operation is completed, and then, the operations are repeated, so that the steel box girder can be intermittently slid and pushed along the sliding direction.
In the process, the reference block can be matched with the limiting block, the position of the sliding seat is locked, the rail clamping mechanism is prevented from slipping, meanwhile, the reference block is used for reinforcing connection between the rail surface and the rail waist, and the bearing capacity and the structural strength of the sliding rail are effectively improved. The service life of the sliding rail can be effectively prolonged in terms of avoiding skidding and strengthening the structural strength. The device can reduce the equipment loss and the maintenance cost, is helpful to ensure the smooth operation of the sliding operation, and improves the engineering efficiency.
In general, the steel box girder sliding system provided by the embodiment of the invention can effectively avoid the occurrence of sliding in the sliding process, greatly improves the construction efficiency, simultaneously reduces the abrasion to the sliding rail, effectively reinforces the sliding rail, not only improves the stability of sliding operation, but also prolongs the service life of the sliding rail.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a steel box girder sliding system provided by an embodiment of the invention;
FIG. 2 is a schematic partial structural diagram of a steel box girder sliding system provided by an embodiment of the invention;
fig. 3 is a schematic structural diagram of the tail end of the steel box girder sliding system provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of the steel box girder sliding system provided by the embodiment of the invention when a limiting block extends out;
FIG. 5 is a schematic top structure diagram of a steel box girder sliding system provided by an embodiment of the invention;
fig. 6 is a schematic structural diagram of a positioning column of the steel box girder sliding system provided by the embodiment of the present invention (the pushing block is in a retracted state);
fig. 7 is a schematic structural diagram of a positioning column of the steel box girder sliding system provided by the embodiment of the invention (the pushing block is in an extended state).
Description of reference numerals:
a steel box girder sliding system 1000; a slip track 100; a reference block 110; a joist 200; a hydraulic mechanism 300; a hydraulic rod 310; an annular projection 311; a positioning post 320; a push block 321; a reset rubber layer 322; an extension column 330; a second lumen 340; a stop flange 350; an inner end wall 360; a sliding seat 400; a limiting mechanism 410; a stop block 411; a retaining arm 412; a control lever 413; the first reference wall surface 413a; a guide wall surface 413b; the second reference wall surface 413c; a return spring 414; a transmission assembly 500; an extension arm 510; a chute 511; a transmission block 520; an air pressure 530; a first elastic bellows 531; a second elastically stretchable cover 532; an intermediate housing 533; rail embracing mechanism 600.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Examples
Referring to fig. 1 to 4, the present embodiment provides a steel box girder sliding system 1000, where the steel box girder sliding system 1000 includes: the sliding rail 100, the joist 200, the hydraulic mechanism 300 and the sliding seat 400.
The lower rail surface of the sliding rail 100 is provided with reference blocks 110, the reference blocks 110 are uniformly arranged at intervals along the length direction of the sliding rail 100, the reference blocks 110 are positioned on one side of the lower rail surface close to the rail web, and the reference blocks 110 are connected with the lower rail surface and the rail web simultaneously.
The joist 200 is arranged on the upper rail surface of the sliding rail 100, and the joist 200 is carried by the sliding rail 100.
One end of the hydraulic mechanism 300 is hinged to the joist 200, and the other end is hinged to the sliding seat 400, and the sliding seat 400 is slidably engaged with the sliding rail 100.
The sliding seat 400 is provided with a limiting mechanism 410 and a rail holding mechanism 600.
The limiting mechanism 410 is provided with a limiting block 411 and a transmission assembly 500, the transmission assembly 500 connects the limiting block 411 with the hydraulic mechanism 300 in a transmission manner, and when the hydraulic mechanism 300 extends, the hydraulic mechanism 300 pushes the limiting block 411 to move towards the reference block 110, so that the limiting block 411 is attached to one side of the reference block 110 towards the sliding direction.
The rail holding mechanism 600 can hold the sliding rail 100 tightly according to the control signal, so as to realize the preliminary positioning of the sliding seat 400.
In a specific working process, when the steel box girder needs to be subjected to sliding operation, the steel box girder is placed on the joist 200, one end of the hydraulic mechanism 300 is hinged to one side of the joist 200 far away from the sliding advancing direction, and the sliding seat 400 is arranged at one end of the hydraulic mechanism 300 far away from the joist 200.
When sliding begins, the rail holding mechanism 600 for controlling the sliding seat 400 holds the sliding rail 100 tightly, then the hydraulic mechanism 300 is controlled to extend, at the moment, the hydraulic mechanism 300 pushes the limiting block 411 to move towards the reference block 110, the limiting block 411 is attached to one side, facing the sliding direction, of the reference block 110, the limiting block 411 can prevent the sliding seat 400 from moving towards one side far away from the joist 200, and therefore the sliding seat 400 is prevented from sliding, and the position of the sliding seat 400 on the sliding rail 100 is fixed.
As the hydraulic mechanism 300 continues to extend, the hydraulic mechanism 300 applies tension between the shoe 400 and the joist 200, moving the shoe 400 and the joist 200 away from each other, the joist 200 being successfully pushed forward along the glide track 100 as the position of the shoe 400 on the glide track 100 is fixed.
When the hydraulic mechanism 300 is in a fully extended state, the rail holding mechanism 600 is controlled to release the holding state, the sliding rail 100 is released, the hydraulic mechanism 300 is controlled to retract, the limiting block 411 retracts and is separated from the reference block 110, when the hydraulic mechanism 300 continues to retract, the sliding seat 400 is pulled by the hydraulic mechanism 300 towards one side of the joist 200, and the sliding seat 400 wants to slide along the sliding rail 100 towards the joist 200.
So far, once sliding operation is completed, and then, the operations are repeated, so that the steel box girder can be intermittently slid and pushed along the sliding direction.
In the above-mentioned in-process, benchmark piece 110 can the cooperation of stopper 411, realizes the position locking to the seat 400 that slides, avoids embracing rail mechanism 600 to skid, and simultaneously, benchmark piece 110 has still strengthened the connection between rail face and the rail waist, has effectively improved the bearing capacity and the structural strength of the track 100 that slides. The service life of the slip track 100 can be effectively extended, both from the standpoint of avoiding slippage and from the standpoint of enhancing structural strength. The device can reduce the equipment loss and the maintenance cost, is helpful to ensure the smooth operation of the sliding operation, and improves the engineering efficiency.
Generally, the steel box girder sliding system 1000 can effectively avoid the occurrence of sliding in the sliding process, greatly improves the construction efficiency, simultaneously reduces the abrasion to the sliding rail 100, effectively reinforces the sliding rail 100, not only improves the stability of the sliding operation, but also prolongs the service life of the sliding rail 100.
In this embodiment, the front end and the rear end of the sliding seat 400 are provided with rail holding mechanisms 600.
The limiting mechanism 410 further includes: a retaining arm 412 and a lever 413. The limiting arm 412 is fixedly connected to the sliding seat 400 and arranged along the length direction of the sliding rail 100, the limiting arm 412 is connected between the rail holding mechanisms 600 at the front end and the rear end of the sliding seat 400, and the limiting arm 412 is located below the lower rail surface.
The arm 412 has a first internal cavity extending along the length of the arm 412 and extending through to an end of the arm 412 near the transmission assembly 500. The control rod 413 is slidably received in the first lumen.
The lever 413 is provided with a first reference wall surface 413a, a guide wall surface 413b, and a second reference wall surface 413c, the first reference wall surface 413a and the second reference wall surface 413c are both provided in the axial direction of the lever 413, the first reference wall surface 413a and the second reference wall surface 413c are parallel, and the distance from the first reference wall surface 413a to the axis of the lever 413 is smaller than the distance from the second reference wall surface 413c to the axis of the lever 413. The guide wall 413b is connected between the first reference wall 413a and the second reference wall 413c. The first reference wall surface 413a, the guide wall surface 413b, and the second reference wall surface 413c constitute a continuous surface.
The top of the lateral wall of the limiting arm 412 is provided with an installation through hole, the installation through hole is formed along the radial direction of the limiting arm 412 and is arranged towards the lower rail surface, the limiting block 411 is arranged in the installation through hole, and the limiting block 411 is matched with the installation through hole in a sliding mode along the axial direction of the installation through hole.
The outer end of the limiting block 411 faces the lower rail surface, and the inner end of the limiting block 411 is attached to the control rod 413. As the lever 413 slides along the first inner cavity, the stopper 411 is attached to the first reference wall surface 413a, the guide wall surface 413b, or the second reference wall surface 413c of the lever 413. When the stopper 411 contacts the first reference wall surface 413a, the stopper 411 is received in the stopper arm 412. When the stopper 411 contacts the second reference wall surface 413c, the stopper 411 protrudes from the stopper arm 412 and is attached to one side of the reference block 110 facing the sliding direction.
The transmission assembly 500 is in transmission fit with the control rod 413 and is used for driving the control rod 413 to slide, so that the limiting block 411 is controlled.
When the stopper 411 contacts the first reference wall 413a, the stopper 411 can return to the stopper arm 412 by its own weight, and naturally, a return elastic member may be provided for the stopper 411 to facilitate the retraction of the stopper 411 into the stopper arm 412.
Further, referring to fig. 1 to 7, a positioning column 320 and an extending column 330 are disposed at one end of the hydraulic mechanism 300 hinged to the sliding seat 400. The extending column 330 is perpendicular to the positioning column 320, and one end of the extending column 330 is fixedly connected to the middle portion of the sidewall of the positioning column 320.
An end surface of the extending column 330, which is away from the positioning column 320, is provided with a second inner cavity 340, and the second inner cavity 340 extends along the axial direction of the extending column 330 and extends into the positioning column 320. The positioning column 320 is provided with a radial through hole, and the radial through hole communicates the outside of the positioning column 320 with the second inner cavity 340.
The radial through hole is slidably matched with the pushing block 321, the outer side wall of the positioning column 320 is provided with a reset rubber layer 322, the reset rubber layer 322 extends along the circumferential direction of the positioning column 320 and covers a part of the radial through hole, and the transmission assembly 500 is in transmission fit with the exposed part of the pushing block 321. One end of the reset rubber layer 322 is fixed to one side of the connection portion between the positioning column 320 and the extension column 330, and the other end is fixed to the other side of the connection portion between the positioning column 320 and the extension column 330.
The hydraulic rod 310 has an outer diameter smaller than the inner diameter of the second inner chamber 340. The extension column 330 is provided with a stop flange 350, and the stop flange 350 is located at the mouth of the second lumen 340. The hydraulic rod 310 is slidably fitted in the second inner cavity 340, and the head of the hydraulic rod 310 is provided with an annular protrusion 311 for abutting against the stop flange 350, so that when the hydraulic rod 310 moves towards the outside of the second inner cavity 340, the annular protrusion 311 can abut against the stop flange 350 to prevent the hydraulic rod 310 from being removed.
Wherein the distance from the annular protrusion 311 to the end of the hydraulic rod 310 is smaller than the distance from the stop flange 350 to the end of the second inner cavity 340.
The positioning column 320 and the extending column 330 are both cylindrical, the inner end wall 360 of one end of the second inner cavity 340 far away from the extending column 330 is arc-shaped and coaxial with the side wall of the positioning column 320, and the radial through holes are all opened on the inner end wall 360 of the second inner cavity 340. The end of the hydraulic rod 310 fits into the inner end wall 360 of the second chamber 340.
The radial through hole extends along the axial direction of the positioning column 320 to form a strip-shaped hole, the pushing block 321 is matched with the radial through hole, and the reset rubber layer 322 is arranged in the middle of the positioning column 320 and covers the middle of the radial through hole.
When the hydraulic rod 310 extends, the end of the hydraulic rod 310 moves towards the inner end wall 360 of the second inner cavity 340, the annular protrusion 311 is separated from the stop flange 350, the hydraulic rod 310 can push the push block 321, the push block 321 extends out of the radial through hole, and the reset rubber layer 322 is spread by the extended push block 321.
Since only a portion of the push block 321 is covered by the reset rubber layer 322, the exposed portion of the reset rubber layer 322 is able to drive the control rod 413 through the transmission assembly 500. When the hydraulic rod 310 contracts, the hydraulic rod 310 moves towards the outside of the second inner cavity 340, and when the annular protrusion 311 abuts against the stop flange 350, the end of the hydraulic rod 310 is sufficiently separated from the inner end wall 360 of the second inner cavity 340, and the push block 321 returns to the radial through hole under the elastic force of the return rubber layer 322. At this time, since the annular protrusion 311 abuts against the stopping flange 350, the hydraulic rod 310 can pull the sliding seat 400 to move toward the joist 200, and meanwhile, the pushing block 321 retracts, and the control rod 413 can also be smoothly reset, so that the limiting block 411 retracts.
Further, the transmission assembly 500 includes: an extension arm 510 and a drive block 520.
The two sets of extension arms 510 extend from the end of the sliding seat 400 toward the hydraulic mechanism 300, and the two sets of extension arms 510 are respectively disposed on two sides of the sliding seat 400.
The positioning column 320 is disposed between the two sets of extension arms 510, an axial line of the positioning column 320 is disposed along a width direction of the sliding track 100, and two ends of the positioning column 320 are respectively hinged to the two sets of extension arms 510. The end of the extension arm 510 remote from the hydraulic mechanism 300 extends to the end of the check arm 412.
The opposite sides of the two groups of extension arms 510 are provided with sliding grooves 511, one ends of the sliding grooves 511 extend to the positioning pillars 320, the other ends of the sliding grooves 511 extend to the end parts of the limiting arms 412, and the sliding grooves 511 are communicated with the first inner cavity. The transmission block 520 is slidably fitted in the slide slot 511.
When the hydraulic rod 310 is extended, the hydraulic rod 310 pushes the push block 321 to extend, and the push block 321 drives the control rod 413 through the transmission block 520.
Specifically, the transmission assembly 500 further includes: an air pressure 530. The pneumatic press 530 includes a first resilient bellows 531, a second resilient bellows 532, and an intermediate housing 533. The middle housing 533 is made of a hard material, the middle housing 533 is hollow and is accommodated in the sliding slot 511 at an end close to the limiting arm 412, and a portion of the middle housing 533 extends into the first inner cavity.
A first opening is opened at one end of the middle housing 533 close to the transmission block 520, the first elastic expansion cover 531 covers the first opening to close the first opening, and the first elastic expansion cover 531 abuts against the transmission block 520. A second opening is formed at one end of the middle housing 533 close to the control rod 413, the second opening is sealed by covering the second elastic expansion cover 532, and the second elastic expansion cover 532 abuts against the control rod 413.
When the pushing block 321 pushes the transmission block 520, the transmission block 520 pushes the first elastic expansion cover 531 to compress the first elastic expansion cover 531, the second elastic expansion cover 532 is expanded to be expanded under the influence of the air pressure change in the air pressure device 530, and the second elastic expansion cover 532 smoothly pushes the control rod 413 to move, so that the limiting block 411 is changed from being attached to the first reference wall 413a to being attached to the second reference wall 413c.
In order to ensure the stability of the transmission, the first elastically stretchable cover 531 is disposed along the length direction of the sliding slot 511, and the elastically stretchable direction of the first elastically stretchable cover 531 is along the length direction of the sliding slot 511. The second elastic expansion shield 532 is disposed along the length direction of the first inner chamber, and the elastic expansion direction of the second elastic expansion shield 532 is along the length direction of the second inner chamber 340.
In addition, the pneumatic pressure unit 530 is enclosed in the sliding slot 511 by a hard cover (not shown). Since the second elastic expansion cover 532 is located in the first inner cavity, the hard cover is used for enclosing the middle housing 533 of the air pressure unit 530 and the first elastic expansion cover 531 in the sliding slot 511, the hard cover is used for preventing the air pressure unit 530 from being released from the sliding slot 511, and the first elastic expansion cover 531 can be smoothly expanded and contracted between the sliding slot 511 and the hard cover.
Further, an end of the control rod 413 remote from the pneumatic pressure 530 is provided with a return spring 414 for urging the control rod 413 to return when the hydraulic rod 310 contracts.
Furthermore, the end face of the transmission block 520 close to the positioning column 320 is arc-shaped, the axis corresponding to the end face of the transmission block 520 is parallel to the axis of the positioning column 320, the curvature of the end face of the transmission block 520 is the same as the curvature of the arc face of the end portion of the pushing block 321 after the pushing block 321 extends out, and the central angle degree corresponding to the end face of the transmission block 520 is larger than the central angle degree corresponding to the gap between the two adjacent pushing blocks 321. The end surface of the drive block 520 is smoothed. Through this design, can ensure to have all the time to promote piece 321 and the cooperation of driving block 520, even the reference column 320 has taken place to rotate relative extension arm 510, promotes piece 321 and also can accurately cooperate with driving block 520.
Control of the steel box girder skidding system 1000 may be accomplished by means of an external controller, including but not limited to a PLC.
In conclusion, the steel box girder sliding system 1000 provided by the embodiment of the invention can effectively avoid the occurrence of sliding in the sliding process, greatly improve the construction efficiency, reduce the abrasion to the sliding rail 100, effectively reinforce the sliding rail 100, improve the stability of the sliding operation and prolong the service life of the sliding rail 100.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A steel box girder sliding system is characterized by comprising: the device comprises a sliding track, a joist, a hydraulic mechanism and a sliding seat;
the lower rail surface of the sliding rail is provided with reference blocks, the reference blocks are uniformly arranged at intervals along the length direction of the sliding rail, the reference blocks are positioned on one side, close to the rail web, of the lower rail surface, and the reference blocks are connected with the lower rail surface and the rail web simultaneously; the joist is arranged on the upper rail surface of the sliding rail;
one end of the hydraulic mechanism is hinged to the joist, the other end of the hydraulic mechanism is hinged to the sliding seat, and the sliding seat is slidably matched with the sliding track;
the sliding seat is provided with a limiting mechanism and a rail holding mechanism; the limiting mechanism is provided with a limiting block and a transmission assembly, the transmission assembly is used for connecting the limiting block with the hydraulic mechanism in a transmission mode, when the hydraulic mechanism extends, the hydraulic mechanism pushes the limiting block to move towards the reference block, and therefore the limiting block is attached to one side, facing the sliding direction, of the reference block.
2. The steel box beam slippage system of claim 1, wherein the limiting mechanism further comprises: a limit arm and a control rod; the limiting arm is fixedly connected to the sliding seat and arranged along the length direction of the sliding track, and is provided with a first inner cavity which extends along the length direction of the limiting arm and penetrates to one end, close to the transmission assembly, of the limiting arm;
the control rod is slidably received in the first lumen; the control rod is provided with a first reference wall surface, a guide wall surface and a second reference wall surface, the first reference wall surface and the second reference wall surface are arranged along the axial direction of the control rod and are parallel, and the distance from the first reference wall surface to the axis of the control rod is smaller than the distance from the second reference wall surface to the axis of the control rod; the guide wall surface is connected between the first reference wall surface and the second reference wall surface;
the top of the side wall of the limiting arm is provided with a mounting through hole, and the limiting block is slidably matched with the mounting through hole; the transmission assembly is in transmission fit with the control rod and is used for driving the control rod to slide; when the limiting block is in contact with the first reference wall surface, the limiting block is accommodated in the limiting arm; when the limiting block is in contact with the second reference wall surface, the limiting block extends out of the limiting arm and is attached to one side, facing the sliding direction, of the reference block.
3. The steel box girder sliding system according to claim 2, wherein a positioning column and an extending column are arranged at one end of the hydraulic mechanism, which is hinged with the sliding seat; the extending column is perpendicular to the positioning column, and one end of the extending column is fixedly connected to the side wall of the positioning column;
a second inner cavity is formed in the end face, far away from the positioning column, of the extending column, and extends along the axial direction of the extending column and extends to the positioning column; the positioning column is provided with a radial through hole which communicates the outside with the second inner cavity; the radial through hole is slidably matched with a pushing block, the outer side wall of the positioning column is provided with a reset rubber layer, the reset rubber layer extends along the circumferential direction of the positioning column and covers a part of the radial through hole, and two ends of the reset rubber layer are respectively fixedly connected to the positioning column;
the extending column is provided with a stop flange, and the stop flange is positioned at the opening part of the second inner cavity; the hydraulic rod is slidably matched in the second inner cavity, and the head of the hydraulic rod is provided with an annular bulge used for abutting against the stop flange so as to prevent the hydraulic rod from falling out; the distance from the annular protrusion to the end of the hydraulic rod is smaller than the distance from the stop flange to the end of the second inner cavity; the transmission assembly is in transmission fit with the exposed part of the pushing block;
when the hydraulic rod extends, the hydraulic rod pushes the pushing block to extend out, and the pushing block drives the control rod through the transmission assembly; when the hydraulic rod contracts, the pushing block returns to the radial through hole under the elastic action of the reset rubber layer.
4. The steel box beam sliding system according to claim 3, wherein the radial through hole extends axially along the positioning column to form a strip-shaped hole, and the reset rubber layer is arranged in the middle of the positioning column and covers the middle of the radial through hole.
5. The steel box girder sliding system according to claim 3, wherein the positioning column and the extension column are both cylindrical, the inner end wall of the second inner cavity is arc-shaped and coaxial with the side wall of the positioning column, and the radial through holes are all opened in the inner end wall of the second inner cavity; the end of the hydraulic rod is matched with the inner end wall of the second inner cavity.
6. The steel box beam skidding system of claim 3 wherein the transmission assembly comprises: an extension arm and a transmission block;
the two groups of extension arms extend out of the end part of the sliding seat towards the hydraulic mechanism, the positioning column is arranged between the two groups of extension arms, and two ends of the positioning column are respectively hinged to the two groups of extension arms; one end of the extension arm, which is far away from the hydraulic mechanism, extends to the end part of the limiting arm;
the opposite sides of the two groups of extension arms are provided with sliding grooves, one ends of the sliding grooves extend to the positioning columns, the other ends of the sliding grooves extend to the end parts of the limiting arms, and the sliding grooves are communicated with the first inner cavity; the transmission block is slidably matched in the sliding groove;
when the hydraulic rod extends, the hydraulic rod pushes the pushing block to extend out, and the pushing block drives the control rod through the transmission block.
7. The steel box beam skidding system of claim 6 wherein the drive assembly further comprises: an air compressor; the air compressor comprises a first elastic telescopic cover, a second elastic telescopic cover and a middle shell; the middle shell is made of a hard material, is of a hollow structure and is accommodated at one end, close to the limiting arm, of the sliding groove, and the middle shell extends into the first inner cavity;
a first opening is formed in one end, close to the transmission block, of the middle shell, the first elastic telescopic cover covers the first opening to seal the first opening, and the first elastic telescopic cover abuts against the transmission block; a second opening is formed in one end, close to the control rod, of the middle shell, the second elastic telescopic cover is arranged on the second opening in a covering mode and seals the second opening, and the second elastic telescopic cover abuts against the control rod.
8. The steel box girder sliding system according to claim 7, wherein the air compressor is enclosed in the sliding groove by a hard cover.
9. The steel box girder sliding system according to claim 7, wherein one end of the control rod, which is far away from the air pressure device, is provided with a return spring for pushing the control rod to return when the hydraulic rod contracts.
10. The steel box girder sliding system according to claim 7, wherein an end surface of the transmission block near the positioning post is arc-shaped, an axial line corresponding to the end surface of the transmission block is parallel to an axial line of the positioning post, and a curvature of the end surface of the transmission block is the same as a curvature of an arc surface of the pushing block at which the end portion is located after the pushing block extends out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211041796.6A CN115162750B (en) | 2022-08-29 | 2022-08-29 | Steel box girder sliding system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211041796.6A CN115162750B (en) | 2022-08-29 | 2022-08-29 | Steel box girder sliding system |
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| CN115162750A true CN115162750A (en) | 2022-10-11 |
| CN115162750B CN115162750B (en) | 2023-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117919618A (en) * | 2024-03-22 | 2024-04-26 | 山西锦丰大地精密机械有限公司 | Mining respiratory protection device |
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| EP0291739A1 (en) * | 1987-05-22 | 1988-11-23 | Albert Böcker GmbH & Co. KG | Unloading device for the rope-hoisted carriage of a construction lift |
| CN103790154A (en) * | 2013-11-29 | 2014-05-14 | 中交第四航务工程局有限公司 | Reinforcement cage pushing system and reinforcement cage pushing method |
| CN205894717U (en) * | 2016-08-12 | 2017-01-18 | 河北建工集团有限责任公司 | Space truss structure accumulation sliding system |
| CN106567549A (en) * | 2016-11-04 | 2017-04-19 | 同济大学 | Self-locking type steel channel rail clamping device |
| CN213653233U (en) * | 2020-08-26 | 2021-07-09 | 新疆北新路桥集团股份有限公司 | Pushing and sliding device |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0291739A1 (en) * | 1987-05-22 | 1988-11-23 | Albert Böcker GmbH & Co. KG | Unloading device for the rope-hoisted carriage of a construction lift |
| CN103790154A (en) * | 2013-11-29 | 2014-05-14 | 中交第四航务工程局有限公司 | Reinforcement cage pushing system and reinforcement cage pushing method |
| CN205894717U (en) * | 2016-08-12 | 2017-01-18 | 河北建工集团有限责任公司 | Space truss structure accumulation sliding system |
| CN106567549A (en) * | 2016-11-04 | 2017-04-19 | 同济大学 | Self-locking type steel channel rail clamping device |
| CN213653233U (en) * | 2020-08-26 | 2021-07-09 | 新疆北新路桥集团股份有限公司 | Pushing and sliding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117919618A (en) * | 2024-03-22 | 2024-04-26 | 山西锦丰大地精密机械有限公司 | Mining respiratory protection device |
| CN117919618B (en) * | 2024-03-22 | 2024-05-31 | 山西锦丰大地精密机械有限公司 | Mining respiratory protection device |
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|---|---|
| CN115162750B (en) | 2023-05-12 |
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