CN115162750B - Steel box girder sliding system - Google Patents
Steel box girder sliding system Download PDFInfo
- Publication number
- CN115162750B CN115162750B CN202211041796.6A CN202211041796A CN115162750B CN 115162750 B CN115162750 B CN 115162750B CN 202211041796 A CN202211041796 A CN 202211041796A CN 115162750 B CN115162750 B CN 115162750B
- Authority
- CN
- China
- Prior art keywords
- sliding
- block
- positioning column
- rail
- limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention relates to the technical field of buildings, in particular to a steel box girder sliding system. The hydraulic device comprises a sliding rail, 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 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 rail. 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 transmitting and connecting the limiting block and the hydraulic mechanism, and when the hydraulic mechanism stretches, 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 towards the sliding direction. The sliding rail can be effectively prevented from sliding in the sliding process, abrasion to the sliding rail is reduced, the sliding rail is reinforced, the stability of sliding operation is improved, and the service life of the sliding rail is prolonged.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a steel box girder sliding system.
Background
Steel box girders are a commonly used building structure, and in the building construction process, it is often necessary to perform a sliding operation on the steel box girders. However, the existing sliding means have lower efficiency, and the phenomenon of sliding often occurs in the sliding operation process, so that the construction efficiency is seriously affected. In addition, the slip rail is severely worn if the slip phenomenon frequently occurs, and the probability of the slip phenomenon occurring at the same position during the subsequent construction process is higher.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims to provide a steel box girder sliding system which can effectively avoid slipping in the sliding process, greatly improve the construction efficiency, simultaneously reduce the abrasion of a sliding rail, effectively strengthen the sliding rail, improve the stability of sliding operation and prolong the service life of the sliding rail.
Embodiments of the present invention are implemented as follows:
a steel box girder slip system, comprising: the device comprises a sliding rail, 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 of the lower rail surface, which is close to the rail web, and the reference blocks are simultaneously connected with the lower rail surface and the rail web. 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 rail.
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 transmitting and connecting the limiting block and the hydraulic mechanism, and when the hydraulic mechanism stretches, 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 towards the sliding direction.
Further, the limiting mechanism further includes: limit arm and control lever. The limiting arm is fixedly connected to the sliding seat and arranged along the length direction of the sliding rail, and is provided with a first inner cavity which extends along the length direction of the limiting arm and penetrates through one end of the limiting arm close to the transmission assembly.
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, the first reference wall surface and the second reference wall surface 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 lateral wall of spacing arm has seted up the installation through-hole, and the stopper slidably cooperates in the installation through-hole. The transmission component is in transmission fit with the control rod and is used for driving the control rod to slide. When the limiting block is contacted 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 of the reference block facing the sliding direction.
Further, one end of the hydraulic mechanism, which is used for being hinged with the sliding seat, is provided with a positioning column and an extension column. 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.
The end face of one end of the extending column, which is far away from the positioning 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 a pushing block, a reset rubber layer is arranged on the outer side wall of the positioning column, 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 a stop flange located at the mouth of the second lumen. 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 propping against the stop flange so as to prevent the hydraulic rod from falling out. The annular projection is spaced from the end of the hydraulic stem less than the stop flange is spaced from the end of the second lumen. The transmission component is in transmission fit with the exposed part of the pushing block.
When the hydraulic rod stretches, 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 is contracted, the pushing block returns to the radial through hole under the elastic action of the reset rubber layer.
Further, the radial through holes extend along the axial direction of the positioning column to form strip-shaped holes, and the reset rubber layer is arranged in the middle of the positioning column and covers the middle of the radial through holes.
Further, the locating column and the extending column are cylindrical, the inner end wall of the second inner cavity is arc-shaped and coaxial with the side wall of the locating column, and the radial through holes are formed 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.
Further, the transmission assembly includes: an extension arm and a transmission block.
The two groups of extension arms extend from the end parts of the sliding seat towards the hydraulic mechanism, the positioning column is arranged between the two groups of extension arms, and the 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 of the limiting arm.
A chute is formed in one side, opposite to the two groups of extension arms, of each extension arm, one end of each chute extends to the corresponding locating column, the other end of each chute extends to the end of the corresponding limiting arm, and the chute is communicated with the first inner cavity. The transmission block is slidably matched in the chute.
When the hydraulic rod stretches, 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 air pressure 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 of the sliding groove close to the limiting arm, and the middle shell extends into the first inner cavity.
The middle shell is close to one end of the transmission block and is provided with a first opening, the first elastic telescopic cover is covered on the first opening to seal the first opening, and the first elastic telescopic cover abuts against the transmission block. The middle shell is close to one end of the control rod and is provided with a second opening, the second elastic telescopic cover is covered on the second opening to seal the second opening, and the second elastic telescopic cover abuts against the control rod.
Further, the air pressure device is packaged in the chute by the hard cover.
Further, a return spring is provided at an end of the control lever remote from the air pressure device for pushing the control lever to return when the hydraulic lever is contracted.
Further, the end face of one end of the transmission block, which is close to the positioning column, is arc-shaped, the axial lead corresponding to the end face of the transmission block is parallel to the axial lead of the positioning column, and the curvature of the end face of the transmission block is the same as the curvature of the arc face where the end part of the transmission block is located after the pushing block extends out.
The technical scheme of the embodiment of the invention has the beneficial effects that:
in a specific working process of the steel box girder sliding system provided by the embodiment of the invention, when the steel box girder is required 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, which is far away from the sliding advancing direction, and the sliding seat is arranged at one end of the hydraulic mechanism, which is far away from the joist.
When the sliding is started, the rail holding mechanism of the sliding seat is controlled to hold the sliding rail tightly, then the hydraulic mechanism is controlled to stretch, at the moment, the hydraulic mechanism pushes the limiting block to move towards the reference block, the limiting block is attached to one side of the reference block towards the sliding direction, the limiting block can prevent the sliding seat from moving towards one side far away from the joist, so that the sliding seat is prevented from sliding, and the position of the sliding seat on the sliding rail is fixed.
As the hydraulic mechanism continues to extend, the hydraulic mechanism applies tension between the sliding seat and the joist, causing the sliding seat and joist to move away from each other, as the position of the sliding seat on the sliding track is fixed, the joist is successfully pushed forward along the sliding track.
When the hydraulic mechanism is in a fully extended state, the rail holding mechanism is controlled to release the holding state, the sliding rail is released, the hydraulic mechanism is controlled to shrink, the limiting block is retracted and separated from the reference block, and when the hydraulic mechanism continues to shrink, the sliding seat is pulled towards one side of the joist by the hydraulic mechanism and slides along the sliding rail to want the joist.
Thus, one sliding operation is completed, and then the steel box girder can be intermittently slid and pushed along the sliding direction by repeating the above operation.
In the process, the reference block can be matched with the limiting block, so that the position locking of the sliding seat is realized, the rail holding mechanism is prevented from sliding, meanwhile, the reference block also strengthens the connection between the rail surface and the rail web, 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 both in terms of slip prevention and structural strength enhancement. The device can reduce equipment loss, reduce maintenance cost, be beneficial to ensuring smooth sliding operation and improve engineering efficiency.
In general, the steel box girder sliding system provided by the embodiment of the invention can effectively avoid slipping in the sliding process, greatly improve the construction efficiency, simultaneously reduce the abrasion to the sliding track, effectively strengthen the sliding track, improve the stability of sliding operation and prolong the service life of the sliding track.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a steel box girder sliding system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a partial structure of a steel box girder sliding system according to an embodiment of the present invention;
FIG. 3 is a schematic view of the tail end structure of a steel box girder sliding system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a steel box girder sliding system according to an embodiment of the present invention when a stopper is extended;
FIG. 5 is a schematic top view of a steel box girder slip system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a steel box girder sliding system according to an embodiment of the present invention (the pushing block is in a retracted state);
fig. 7 is a schematic structural diagram of a steel box girder sliding system according to an embodiment of the present invention (the pushing block is in an extended state) at the positioning column.
Reference numerals illustrate:
a steel box girder sliding system 1000; a slip track 100; a reference block 110; joist 200; a hydraulic mechanism 300; a hydraulic lever 310; annular projection 311; a positioning post 320; a pushing 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 limit mechanism 410; a stopper 411; a limit arm 412; a control lever 413; a first reference wall 413a; a guide wall 413b; a second reference wall 413c; a return spring 414; a transmission assembly 500; an extension arm 510; a chute 511; a drive block 520; an air pressure device 530; a first elastic expansion cover 531; a second elastic telescoping shield 532; an intermediate housing 533; rail holding mechanism 600.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the 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 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 made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "parallel," "perpendicular," and the like, do not denote that the components are required to be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel than "perpendicular" and does not mean that the structures must be perfectly parallel, but may be slightly tilted.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by 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, wherein 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, which is close to the rail web, and the reference blocks 110 are simultaneously connected with the lower rail surface and the rail web.
One end of the hydraulic mechanism 300 is hinged to the joist 200, the other end is hinged to the sliding seat 400, and the sliding seat 400 is slidably matched 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 is used for connecting the limiting block 411 with the hydraulic mechanism 300 in a transmission manner, and when the hydraulic mechanism 300 stretches, 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 preliminary positioning of the sliding seat 400.
In a specific working process, when the steel box girder is required 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 away from the sliding advancing direction, and the sliding seat 400 is arranged at one end of the hydraulic mechanism 300 away from the joist 200.
When the sliding starts, the rail holding mechanism 600 of the sliding seat 400 is controlled to hold the sliding rail 100 tightly, then the hydraulic mechanism 300 is controlled to stretch, at this time, 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 of the reference block 110 towards the sliding direction, the limiting block 411 can prevent the sliding seat 400 from moving towards one side far away from the joist 200, so that the sliding seat 400 is prevented from sliding, and the position of the sliding seat 400 on the sliding rail 100 is fixed.
As hydraulic mechanism 300 continues to extend, hydraulic mechanism 300 applies tension between skid 400 and joist 200, causing skid 400 and joist 200 to move away from each other, and joist 200 is successfully pushed forward along skid 100 as the position of skid 400 on skid 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 is retracted and separated from the reference block 110, and when the hydraulic mechanism 300 continues to retract, the sliding seat 400 is pulled by the hydraulic mechanism 300 towards the side where the joist 200 is located, and the sliding seat 400 slides along the sliding rail 100 to want the joist 200.
Thus, one sliding operation is completed, and then the steel box girder can be intermittently slid and pushed along the sliding direction by repeating the above operation.
In the above process, the reference block 110 can be matched with the limiting block 411 to lock the position of the sliding seat 400, so that the rail holding mechanism 600 is prevented from slipping, and meanwhile, the reference block 110 also strengthens the connection between the rail surface and the rail web, so that the bearing capacity and the structural strength of the sliding rail 100 are effectively improved. The life of the slip track 100 is effectively extended, both from the standpoint of avoiding slip and reinforcing structural strength. The device can reduce equipment loss, reduce maintenance cost, be beneficial to ensuring smooth sliding operation and improve engineering efficiency.
In general, the steel box girder sliding system 1000 can effectively avoid slipping in the sliding process, greatly improve the construction efficiency, simultaneously reduce the abrasion to the sliding rail 100, effectively strengthen the sliding rail 100, not only improve the stability of sliding operation, but also prolong the service life of the sliding rail 100.
In this embodiment, the rail holding mechanism 600 is disposed at the front end and the rear end of the sliding seat 400.
The limiting mechanism 410 further includes: a stop arm 412 and a control lever 413. The limiting arm 412 is fixedly connected to the sliding seat 400 and is 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 limiting arm 412 has a first inner cavity extending along a length direction of the limiting arm 412 and penetrating to an end of the limiting arm 412 near the transmission assembly 500. The control lever 413 is slidably received in the first lumen.
The control lever 413 is provided with a first reference wall 413a, a guide wall 413b, and a second reference wall 413c, the first reference wall 413a and the second reference wall 413c being provided along the axial direction of the control lever 413, the first reference wall 413a and the second reference wall 413c being parallel, and the distance from the first reference wall 413a to the axis of the control lever 413 being smaller than the distance from the second reference wall 413c to the axis of the control lever 413. The guide wall 413b is connected between the first reference wall 413a and the second reference wall 413c. The first reference wall 413a, the guide wall 413b, and the second reference wall 413c constitute a continuous surface.
The top of the lateral wall of spacing arm 412 has been seted up and has been installed the through-hole, and the radial of spacing arm 412 is seted up along the installation through-hole, and the installation through-hole sets up towards the lower rail face, and stopper 411 is located in the middle of the installation through-hole, along the axial of installation through-hole, stopper 411 slidable cooperation in the installation through-hole.
The outer end of the limiting block 411 is arranged towards the lower rail surface, and the inner end of the limiting block 411 is attached to the control rod 413. As the control lever 413 slides along the first inner cavity, the stopper 411 is attached to the first reference wall 413a, the guide wall 413b, or the second reference wall 413c of the control lever 413. When the stopper 411 contacts the first reference wall 413a, the stopper 411 is accommodated in the stopper arm 412. When the stopper 411 contacts the second reference wall 413c, the stopper 411 protrudes from the stopper arm 412 and is attached to the side of the reference block 110 facing the sliding direction.
The transmission assembly 500 is in transmission fit with the control rod 413 for driving the control rod 413 to slide, thereby achieving control of the stop 411.
When the limiting block 411 contacts the first reference wall 413a, the limiting block 411 can return to the limiting arm 412 by self weight, or a reset elastic member may be configured on the limiting block 411 to facilitate the limiting block 411 to retract into the limiting arm 412.
Further, referring to fig. 1 to 7, one end of the hydraulic mechanism 300 for hinging with the sliding seat 400 is provided with a positioning column 320 and an extension column 330. The extension column 330 is disposed perpendicular to the positioning column 320, and one end of the extension column 330 is fixedly connected to the middle of the sidewall of the positioning column 320.
The end surface of the extending column 330 far 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 into the positioning column 320. The positioning column 320 is provided with a radial through hole, and the radial through hole communicates the outer part of the positioning column 320 with the second inner cavity 340.
The radial through hole is slidably matched with a 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 of the positioning column 320 and the extension column 330, and the other end is fixed to the other side of the connection portion of the positioning column 320 and the extension column 330.
The outer diameter of the hydraulic stem 310 is smaller than the inner diameter of the second inner cavity 340. The extension post 330 is provided with a stop flange 350, the stop flange 350 being located at the mouth of the second lumen 340. The hydraulic rod 310 is slidably engaged in the second inner cavity 340, the head of the hydraulic rod 310 is provided with an annular protrusion 311 for abutting against the stop flange 350, and 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 falling out.
Wherein the annular protrusion 311 is less distant from the end of the hydraulic rod 310 than the stop flange 350 is distant from 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 the end, far away from the extending column 330, of the second inner cavity 340 is arc-shaped and coaxial with the side wall of the positioning column 320, and the radial through holes are formed in the inner end wall 360 of the second inner cavity 340. The end of the hydraulic stem 310 is fitted with an inner end wall 360 of the second lumen 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 is extended, the end of the hydraulic rod 310 moves toward 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 from 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 can be used to drive the control lever 413 through the transmission assembly 500. When the hydraulic rod 310 is contracted, the hydraulic rod 310 moves out 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 pushing block 321 returns to the radial through hole under the elastic force of the reset rubber layer 322. At this time, since the annular protrusion 311 abuts against the stop flange 350, the hydraulic rod 310 can pull the sliding seat 400 to move toward the joist 200, and at the same time, the pushing block 321 is retracted, and the control rod 413 can be smoothly reset, so that the limiting block 411 is retracted.
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 at two sides of the sliding seat 400.
The positioning column 320 is disposed between the two sets of extension arms 510, the axis of the positioning column 320 is disposed along the width direction of the sliding rail 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 limit arm 412.
A sliding groove 511 is formed on one side of the two sets of extension arms 510, which is opposite to the two sets of extension arms 510, one end of the sliding groove 511 extends to the positioning column 320, the other end extends to the end of the limiting arm 412, and the sliding groove 511 is communicated with the first inner cavity. The transmission block 520 is slidably fitted in the slide groove 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 device 530. The air pressure device 530 includes a first elastic expansion cover 531, a second elastic expansion cover 532, and an intermediate case 533. The middle housing 533 is made of hard material, the middle housing 533 is hollow and is accommodated in one end of the chute 511 near the limiting arm 412, and a portion of the middle housing 533 extends into the first inner cavity.
The middle casing 533 has a first opening near the end of the transmission block 520, and the first elastic telescopic cover 531 covers the first opening to close the first opening, and the first elastic telescopic cover 531 abuts against the transmission block 520. The middle housing 533 has a second opening near the control rod 413, and the second elastic telescopic housing 532 is covered on the second opening to close the second opening, and the second elastic telescopic housing 532 abuts against the control rod 413.
When the pushing block 321 pushes the driving block 520, the driving block 520 pushes the first elastic expansion cover 531 to compress the first elastic expansion cover 531, and the second elastic expansion cover 532 is expanded and stretched 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 lever 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 secure the stability of the transmission, the first elastic expansion cover 531 is provided along the length direction of the chute 511, and the elastic expansion direction of the first elastic expansion cover 531 is along the length direction of the chute 511. The second elastic expansion cover 532 is disposed along the length direction of the first inner cavity, and the elastic expansion direction of the second elastic expansion cover 532 is along the length direction of the second inner cavity 340.
In addition, the air pressure device 530 is enclosed in the chute 511 by a hard cover (not shown). Because the second elastic expansion cover 532 is located in the first inner cavity, the hard cover is used for packaging the middle casing 533 of the air pressure device 530 and the first elastic expansion cover 531 in the chute 511, the hard cover is used for placing the air pressure device 530 to deviate from the chute 511, and the first elastic expansion cover 531 can smoothly expand and contract between the chute 511 and the hard cover.
Further, a return spring 414 is provided at an end of the control lever 413 remote from the air pressure 530 for pushing the control lever 413 to return when the hydraulic lever 310 is contracted.
Further, an end face of the transmission block 520, which is close to the positioning column 320, is arc-shaped, an axis line corresponding to the end face of the transmission block 520 is parallel to an axis line of the positioning column 320, the curvature of the end face of the transmission block 520 is the same as that of an arc surface where the end of the push block 321 is located after the push block 321 extends out, and the number of central angle degrees corresponding to the end face of the transmission block 520 is larger than that corresponding to a gap between two adjacent push blocks 321. The end face of the driving block 520 is smoothed. Through this design, can ensure that there is the pushing block 321 all the time to cooperate with the transmission piece 520, even the locating column 320 has rotated relative extension arm 510, the pushing block 321 can also with the transmission piece 520 exact fit.
Control of the steel box girder sliding system 1000 may be accomplished by means of an external controller, including but not limited to a PLC.
In summary, the steel box girder sliding system 1000 provided by the embodiment of the invention can effectively avoid slipping in the sliding process, greatly improve the construction efficiency, simultaneously reduce the abrasion to the sliding track 100, effectively strengthen the sliding track 100, improve the stability of sliding operation and prolong the service life of the sliding track 100.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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 slip system, comprising: the device comprises a sliding rail, 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 reference blocks are positioned on one side of the lower rail surface, which is close to the rail web, and the reference blocks are simultaneously connected with the lower rail surface and the rail web; 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 rail;
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 stretches, the hydraulic mechanism pushes the limiting block to move towards the reference block, and the limiting block is attached to one side, facing the sliding direction, of the reference block.
2. The steel box girder sliding system of claim 1, wherein the limit 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 rail, and is provided with a first inner cavity which extends along the length direction of the limiting arm and penetrates through one end, close to the transmission assembly, of the limiting arm;
the control rod is slidably accommodated in the first inner cavity; 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, the first reference wall surface and the second reference wall surface are parallel, and the distance from the first reference wall surface to the axial lead of the control rod is smaller than the distance from the second reference wall surface to the axial lead 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 used for driving the control rod to slide; when the limiting block is contacted with the first reference wall surface, the limiting block is contained 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 of the reference block, which faces the sliding direction.
3. The steel box girder sliding system according to claim 2, wherein one end of the hydraulic mechanism for hinging with the sliding seat is provided with a positioning column and an extension column; 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;
the end face of one end of the extending column far away from the positioning 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, and the radial through hole communicates the outside with the second inner cavity; the radial through hole is slidably matched with a pushing block, a reset rubber layer is arranged on the outer side wall of the positioning column, 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 with the positioning column respectively;
the extension column is provided with a stop flange which is positioned at the mouth part of the second inner cavity; the hydraulic rod is slidably matched in the second inner cavity, and the head part of the hydraulic rod is provided with an annular bulge which is used for propping against the stop flange so as to prevent the hydraulic rod from falling out; the annular projection is less than the stop flange is from the end of the second lumen; the transmission assembly is in transmission fit with the exposed part of the pushing block;
when the hydraulic rod stretches, 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 is contracted, the pushing block returns to the radial through hole under the elastic action of the reset rubber layer.
4. A steel box girder sliding system according to claim 3, wherein the radial through holes extend in the axial direction of the positioning column to form strip-shaped holes, and the reset rubber layer is provided in the middle of the positioning column and covers the middle of the radial through holes.
5. A steel box girder sliding system according to claim 3, wherein the positioning column and the extending 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 formed 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. A steel box girder slip system according to claim 3, wherein the transmission assembly comprises: an extension arm and a transmission block;
the two groups of extension arms extend out from the end parts of the sliding seat towards the hydraulic mechanism, the positioning column is arranged between the two groups of extension arms, and the 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 limiting arm;
a sliding groove is formed in one side, opposite to the two groups of extension arms, of each of the two groups of extension arms, one end of each sliding groove extends to the corresponding positioning column, the other end of each sliding groove extends to the end part of the corresponding limiting arm, and each sliding groove is communicated with the corresponding first inner cavity; the transmission block is slidably matched in the chute;
when the hydraulic rod stretches, 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 girder slip system of claim 6, wherein the drive assembly further comprises: an air pressure device; the air pressure 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 of the sliding groove, which is close to the limiting arm, 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 is covered on the first opening to seal the first opening, and the first elastic telescopic cover abuts against the transmission block; the middle shell is close to one end of the control rod and is provided with a second opening, the second elastic telescopic cover is covered on the second opening to seal the second opening, and the second elastic telescopic cover abuts against the control rod.
8. The steel box girder sliding system of claim 7, wherein the air press is enclosed in the chute by a rigid cover.
9. The steel box girder sliding system according to claim 7, wherein an end of the control rod remote from the pneumatic press is provided with a return spring for pushing the control rod to return when the hydraulic rod is contracted.
10. The steel box girder sliding system according to claim 7, wherein an end face of the transmission block, which is close to the positioning column, is arc-shaped, an axial lead corresponding to the end face of the transmission block is parallel to an axial lead of the positioning column, and the curvature of the end face of the transmission block is the same as the curvature of an arc surface where the end of the transmission block is located after the pushing block extends out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211041796.6A CN115162750B (en) | 2022-08-29 | 2022-08-29 | Steel box girder sliding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211041796.6A CN115162750B (en) | 2022-08-29 | 2022-08-29 | Steel box girder sliding system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115162750A CN115162750A (en) | 2022-10-11 |
| CN115162750B true CN115162750B (en) | 2023-05-12 |
Family
ID=83480491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211041796.6A Active CN115162750B (en) | 2022-08-29 | 2022-08-29 | Steel box girder sliding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115162750B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3812803A1 (en) * | 1987-05-22 | 1988-12-01 | Boecker Albert Gmbh & Co Kg | UNLOADING DEVICE FOR A ROPE-DRAWN SLIDE OF A CONSTRUCTION LIFT |
| CN103790154B (en) * | 2013-11-29 | 2015-09-30 | 中交第四航务工程局有限公司 | Reinforcing cage pushing tow system and 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 |
| CN106567549B (en) * | 2016-11-04 | 2018-11-13 | 同济大学 | A kind of self-locking type groove steel rail 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 |
-
2022
- 2022-08-29 CN CN202211041796.6A patent/CN115162750B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115162750A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115162750B (en) | Steel box girder sliding system | |
| KR950005411B1 (en) | Indirect firing fastener driving tool | |
| CN100467883C (en) | Locking mechanism used together with fluid pressure operation device | |
| FI91231C (en) | Safety clutch | |
| CA2615820A1 (en) | Downhole tool with pivotally mounted extendable assembly | |
| CN1152799C (en) | Device for locking end positions of mobile switch parts | |
| US9840884B2 (en) | Downhole seal element and related apparatuses | |
| CN111188418A (en) | Locking mechanism of prefabricated building | |
| CN102036585A (en) | Damper | |
| CA2831842A1 (en) | Instrument for centering tools within a wellbore | |
| CN102926645B (en) | Sheet material roller shutter door | |
| US10005175B2 (en) | Steering shock compressor systems and methods | |
| CN104929561A (en) | Packer | |
| CN210390717U (en) | Automatic gliding bus window of fleing | |
| CN110145312B (en) | Stabilizer and shaft heading machine | |
| CN107587847B (en) | Damping device and drilling jumbo | |
| CN214399549U (en) | High-safety monorail crane | |
| CN221096576U (en) | Anchor cable anti-collapse device | |
| CN112196549A (en) | Automatic correcting device for single oil cylinder supporting shoe of shield machine | |
| CN202628022U (en) | Wedged compression packer | |
| CN212359831U (en) | Hydraulic support side pushes away device | |
| CN221070235U (en) | Chuck for winding and unwinding high-weight winding cores and winding and unwinding device | |
| KR101464683B1 (en) | Extension Jacking Power type anchor assembly | |
| CN220175892U (en) | Portable fire-fighting breaking and dismantling tool | |
| CN109109797B (en) | Automobile bumper fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |