CN113774799A - Traction adjusting device for integral bridge dragging construction - Google Patents
Traction adjusting device for integral bridge dragging construction Download PDFInfo
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- CN113774799A CN113774799A CN202111025458.9A CN202111025458A CN113774799A CN 113774799 A CN113774799 A CN 113774799A CN 202111025458 A CN202111025458 A CN 202111025458A CN 113774799 A CN113774799 A CN 113774799A
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 26
- 230000000903 blocking effect Effects 0.000 claims description 54
- 238000005192 partition Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 206010066054 Dysmorphism Diseases 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- -1 polytetrafluoroethylene Polymers 0.000 description 1
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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
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Abstract
A draft adjustment assembly for use in integral bridge pull construction comprising: the height adjusting device comprises a guide rail part, a supporting part, an elevation adjusting part and a bridge mounting part; the supporting part is arranged on the guide rail part in a sliding manner, the elevation adjusting part comprises a plurality of elevation adjusting devices, the elevation adjusting devices are arranged on the supporting part, and the elevation adjusting devices are linearly distributed in the horizontal direction; the elevation adjusting device is connected with the bridge installation portion, the elevation adjusting portion is used for adjusting the position of the bridge installation portion in the vertical direction, and the bridge installation portion is used for connecting a bridge. According to the invention, the weight of the bridge directly acts on the bridge installation part, the bridge installation part is supported by the plurality of elevation adjusting devices, and the adjustability of the single elevation adjusting device enables the height of the bridge to be more convenient and reliable when the vertical position of the bridge installation part is adjusted by the elevation adjusting device and the height of the bridge is further adjusted.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a traction adjusting device for integral bridge dragging construction.
Background
The dragging method is a commonly used method in bridge construction, has the advantages of economy and rapidness, and can show the superiority in the construction of a large-span steel bridge. The guide beam dragging method can better control the longitudinal overall line type of the bridge, and avoids the problems of complex construction flow and low precision of the floating dragging method. However, due to the influence of factors such as engineering scale, geological conditions, loading conditions and the like, the temporary piers supporting the guide rails are prone to generate large uneven settlement, so that the elevation of the bridge body reaching the design position is not consistent with the design elevation. When differential settlement is too large, tearing of welding seams of the steel box girders, inclination and damage of the bridge body can be caused, and normal use of the structure is affected. At present, engineering technicians can correct the pre-camber of a bridge body by adopting some jacking equipment, but the settlement of temporary piers is dynamically developed along with the dragging of the bridge body, the traditional method cannot adapt to the variation of differential settlement of the temporary piers, when the larger settlement is generated again, repeated treatment is needed, and the problems of long time consumption, complex operation and the like exist.
Moreover, in order to ensure stable and reliable structure, the existing temporary pier adopts a fixed structure, the settlement is difficult to adjust, and the difficulty of installation and transportation is high.
Disclosure of Invention
In order to solve the problems that differential settlement is easy to generate in temporary piers, camber deviation rectification of a bridge body is complex and the like in the prior art, the invention provides a traction adjusting device for integral bridge dragging construction.
The invention adopts the following technical scheme:
a draft adjustment assembly for use in integral bridge pull construction comprising: the height adjusting device comprises a guide rail part, a supporting part, an elevation adjusting part and a bridge mounting part; the guide rail part consists of a plurality of I-shaped beams which are arranged in parallel;
the supporting part is arranged on the guide rail part in a sliding mode, the elevation adjusting part comprises a plurality of elevation adjusting devices, the elevation adjusting devices are arranged on the supporting part, and the elevation adjusting devices are distributed in a straight line along the width direction of the guide rail part in the horizontal direction; the elevation adjusting device is connected with the bridge installation portion, the elevation adjusting portion is used for adjusting the position of the bridge installation portion in the vertical direction, and the bridge installation portion is used for connecting a bridge.
Preferably, the bridge mounting part comprises a bearing plate, a first blocking part and a second blocking part; the bearing plate is horizontally arranged, each elevation adjusting device supports the bearing plate from the lower surface, and the top of each elevation adjusting device is adjustable in position in the vertical direction; the first blocking part and the second blocking part are parallel to each other and arranged on the lower surface of the bearing plate, all the elevation adjusting devices are located between the first blocking part and the second blocking part, and the sequential arrangement direction of all the elevation adjusting devices is avoided from the extending direction of the guide rail part.
Preferably, the supporting part comprises a base plate and a sliding block, the sliding block is arranged on the guide rail part in a sliding mode, the base plate is arranged on the sliding block, the elevation adjusting device is arranged on the base plate, and the elevation adjusting device is in damping fit with the base plate.
Preferably, the two sides of the base plate are provided with limiting parts, the limiting parts are matched with the base plate to form a U-shaped guide groove with an opening facing downwards and matched with the guide rail part, and the sliding block is positioned in the guide groove.
Preferably, the limiting part comprises a T-shaped plate and right-angle supporting plates arranged on the inner side and the outer side of the T-shaped plate, and a top plate of the T-shaped plate is detachably connected with the base plate.
Preferably, the sliding block is made of polytetrafluoroethylene.
Preferably, the lower surface of the base plate is provided with a sliding block limiting part, the sliding block limiting part is used for realizing a groove matched with the sliding block, and the top of the sliding block is inserted into the groove.
Preferably, the upper surface of the base plate is provided with a third blocking part and a fourth blocking part which are parallel to the first blocking part and the second blocking part; all elevation adjustment devices are located between the third and fourth stops.
Preferably, the elevation adjusting device comprises two pressure sub-blocks and two jacking sub-blocks; the two pressure sub-blocks are oppositely arranged in the horizontal direction, the two jacking sub-blocks are matched with the two pressure sub-blocks and the two jacking sub-blocks are distributed up and down; the upper surface of the jacking sub-block positioned above is jointed with the bearing plate, and the bottom surface of the jacking sub-block positioned below is jointed with the backing plate; the relative positions of the two pressed sub-blocks in the horizontal direction are adjustable; the relative position of the two jacking sub-blocks in the vertical direction changes along with the change of the relative position of the two pressed sub-blocks in the horizontal direction.
Preferably, the elevation adjusting device further comprises a screw horizontally penetrating through the two pressed sub-blocks and a loose nut matched with two ends of the screw.
Preferably, the pressure sub-block comprises a first main panel, an upper inclined plate, a lower inclined plate and a plurality of first special-shaped plates; the plurality of first special-shaped plates are arranged on the first main panel in parallel, the first special-shaped plates and the first main panel are both vertically arranged, and the first special-shaped plates are arranged perpendicular to the first main panel; the adjacent first special-shaped plates are connected through a first partition plate which is horizontally arranged; the first main panel is provided with a through hole matched with the screw; the upper inclined plate and the lower inclined plate are connected with the first special-shaped plates, the projections of the upper inclined plate and the lower inclined plate on the horizontal plane are superposed, and one sides of the upper inclined plate and the lower inclined plate, which are away from the first main panel, are close to each other;
the jacking sub-block comprises a second main panel, a left inclined plate, a right inclined plate and a plurality of second special-shaped plates; the plurality of second special-shaped plates are arranged on the second main panel in parallel, the second special-shaped plates are vertically arranged, and the second main panel is horizontally arranged; the adjacent second special-shaped plates are connected through a second partition plate which is vertically arranged; the left inclined plate and the right inclined plate are connected with the second special-shaped plates, the projections of the left inclined plate and the right inclined plate on a vertical surface perpendicular to the second special-shaped plates are overlapped, and one sides of the left inclined plate and the right inclined plate, which are far away from the second main panel, are mutually closed;
the left inclined plate and the right inclined plate of the jacking sub-block positioned above the two jacking sub-blocks are respectively attached to the upper inclined plates of the two pressed sub-blocks and are in sliding fit with the upper inclined plates of the two pressed sub-blocks; the left inclined plate and the right inclined plate of the jacking sub-block positioned below the two jacking sub-blocks are respectively attached to the lower inclined plates of the two pressed sub-blocks and are in sliding fit with the lower inclined plates of the two pressed sub-blocks.
The invention has the advantages that:
(1) according to the invention, the weight of the bridge directly acts on the bridge installation part, the bridge installation part is supported by the plurality of elevation adjusting devices, and when the position of the bridge installation part in the vertical direction is adjusted by the elevation adjusting devices, the weight of the bridge is shared by the plurality of elevation adjusting devices, so that the pressure received by a single elevation adjusting device is reduced, the adjustability of the single elevation adjusting device is improved, and the height of the bridge is adjusted by adjusting the vertical position of the bridge installation part by the elevation adjusting devices more conveniently and reliably.
(2) Through the arrangement of the first blocking portion and the second blocking portion, the height adjusting devices are restrained, and the height adjusting devices can be prevented from being far away from each other, so that the stability of the structure of the height adjusting portion formed by the plurality of height adjusting devices is guaranteed, and the supporting reliability of the height adjusting portion for the bridge table portion is guaranteed.
(3) The arrangement of the sliding block can reduce the friction coefficient between the upper structure and the guide rail beam, so that the bridge can drive the elevation adjusting part and the limiting part to smoothly slide along the guide rail part under the action of external traction force; the setting of slider has still guaranteed the area of contact of supporting part with the guide rail portion, prevents that guide rail portion from producing inhomogeneous vertical deformation because of stress concentration.
(4) Through the cooperation of guide way and guide rail portion, realized that the slider slides spacingly in guide rail portion to avoid backing plate and guide rail portion transition skew, further guaranteed the stability of the relative position of backing plate and guide rail portion, guaranteed the stability of supporting part and guide rail portion relative position promptly.
(5) The guide groove still further retrains a plurality of I-beams, and the guide rail forms many web I-shaped cross sections, and cross section moment of inertia and bending rigidity are showing the increase, can guarantee that the guide rail portion has sufficient intensity to guarantee the effective support to superstructure.
(6) The roof and the backing plate through the T template are dismantled and are connected, have realized that spacing portion and supporting part's dismantlement formula are connected, have made things convenient for this bridge section to carry under the condition of split, have reduced the transport degree of difficulty.
(7) Through the setting of the limiting part of the sliding block, the non-connection and position constraint between the base plate and the sliding block are realized. Therefore, the sliding block, the base plate and the guide rail part are not fixedly connected, and the sliding block which is easy to wear is convenient to replace.
(8) The third blocking part and the fourth blocking part are arranged, so that the bottom restricts the relative position relation between the elevation adjusting devices; the first blocking part and the second blocking part are matched to restrain from the relative position relation between the top elevation adjusting devices, so that the relative positions between the elevation adjusting devices are more stable, and the structure of the elevation adjusting parts is more reliable.
Drawings
FIG. 1 is a structural view of a traction adjustment apparatus for use in integral bridge hauling construction;
FIG. 2 is an exploded view of the support and restraint portions;
FIG. 3 is an assembled view of FIG. 2;
FIG. 4 is a block diagram of an elevation adjustment assembly;
FIG. 5 is a view of a compressed sub-block;
FIG. 6 is an exploded view of a pressed sub-block;
FIG. 7 is a diagram of a jacking sub-block structure;
FIG. 8 is an exploded view of the jacking sub-block;
FIG. 9 is a schematic view of an elevation adjustment mechanism in an elevation adjustment state;
FIG. 10 is a schematic view of the elevation adjustment apparatus in a lowered state.
The figure is as follows:
A. a bridge floor;
1. a guide rail portion;
2. a support portion; 21. a base plate; 22. a slider; 23. a third stopper; 24. a fourth stopper; 25. a slider position limiting portion;
3. an elevation adjustment unit; 31. an elevation adjustment device;
311. a pressed sub-block; 3111. a first main panel; 3112. an upper sloping plate; 3113. a lower sloping plate; 3114. a first profiled sheet; 3115. a first separator;
312. jacking sub-blocks; 3121. a second main panel; 3122. a left sloping plate; 3123. a right sloping plate; 3124. a second special-shaped plate; 3125. a second separator; 313. a screw; 314. loosening and tightening the nut;
4. a bridge mounting section; 41. a bearing plate; 42. a first blocking part; 43. a second blocking part;
5. a limiting part; 50. a guide groove; 51. a T-shaped plate; 52. and a right-angle support plate.
Detailed Description
Traction adjusting device for integral bridge dragging construction
Referring to fig. 1, the present embodiment provides a traction adjustment device for integral bridge pulling construction, including: the device comprises a guide rail part 1, a supporting part 2, an elevation adjusting part 3 and a bridge installation part 4.
The supporting part 2 is arranged on the guide rail part 1 in a sliding mode, the elevation adjusting part 3 comprises a plurality of elevation adjusting devices 31, the elevation adjusting devices 31 are arranged on the supporting part 2, and the elevation adjusting devices 31 are distributed linearly in the horizontal direction. The elevation adjusting device 31 is connected with the bridge installation part 4, the elevation adjusting part 3 is used for adjusting the position of the bridge installation part 4 in the vertical direction, and the bridge installation part 4 is used for connecting a bridge.
Thus, in the embodiment, the weight of the bridge directly acts on the bridge installation portion 4, the bridge installation portion 4 is supported through the plurality of elevation adjusting devices 31, when the position of the bridge installation portion 4 in the vertical direction is adjusted through the elevation adjusting devices 31, due to the arrangement of the plurality of elevation adjusting devices 31, the weight of the bridge is shared, the pressure received by a single elevation adjusting device 31 is reduced, the adjustability of the single elevation adjusting device 31 is improved, and the bridge height is further adjusted through the height adjusting device 31, so that the bridge installation method is more convenient and reliable.
The bridge mounting portion 4 includes a bearing plate 41, a first stopper 42, and a second stopper 43. The bearing plate 41 is horizontally arranged, each elevation adjusting device 31 supports the bearing plate 41 from the lower surface, and the top of the elevation adjusting device 31 is adjustable in position in the vertical direction. So that the height of the bearing plate 41 can be adjusted by the elevation adjustment means 31. The first blocking portion 42 and the second blocking portion 43 are arranged in parallel on the lower surface of the bearing plate 41, all the elevation adjusting devices 31 are located between the first blocking portion 42 and the second blocking portion 43, and the sequential arrangement direction of all the elevation adjusting devices 31 is set back from the extending direction of the guide rail portion 1. Specifically, in the present embodiment, all the elevation adjusting devices 31 are distributed along the direction of the connecting line between the first blocking portion 42 and the second blocking portion 43, and the direction of the connecting line between the first blocking portion 42 and the second blocking portion 43 is the extending direction of the shortest connecting line between the first blocking portion and the second blocking portion. Thus, the first blocking part 42 and the second blocking part 43 are arranged, so that the height adjusting devices 31 are restrained, the height adjusting devices 31 can be prevented from being away from each other, the structural stability of the height adjusting parts 3 formed by the height adjusting devices 31 is guaranteed, and the supporting reliability of the height adjusting parts 3 on the bridge installation part 4 is guaranteed.
Referring to fig. 2 and 3, in the present embodiment, the support portion 2 includes a pad 21 and a slider 22, the slider 22 is slidably disposed on the rail portion 1, the pad 21 is disposed on the slider 22, and the elevation adjustment device 31 is disposed on the pad 21. Specifically, the slider 22 may be made of teflon. Thus, the arrangement of the slider 22 can avoid the friction damage between the backing plate 21 and the guide rail portion 1, and reduce the friction coefficient between the support portion 2 and the guide rail portion 1 on the basis of not changing the contact area, so that the support portion 2 and the guide rail portion 1 can slide relatively under the condition of non-fixed connection, but the guide rail portion 1 cannot generate uneven vertical deformation due to stress concentration.
Referring to fig. 2 and 3, in the present embodiment, the stopper portions 5 are provided on both sides of the pad 21, the stopper portions 5 form U-shaped guide grooves 50 engaging with the guide rail portions 1 below the support portion 2 in cooperation with the pad 21, and the slider 22 is positioned in the guide grooves 50. Through the cooperation of guide way 50 and guide rail portion 1, realized slider 22 the slip spacing on guide rail portion 1 to avoid backing plate 21 and guide rail portion 1 transition skew, further guaranteed the stability of the relative position of backing plate 21 and guide rail portion 1, guaranteed the stability of supporting part 2 and guide rail portion 1 relative position promptly.
In this embodiment, the limiting part 5 includes a T-shaped plate 51 and right-angle support plates 52 arranged on the inner side and the outer side of the T-shaped plate 51, and the top plate of the T-shaped plate 51 is detachably connected with the backing plate 21. In specific implementation, mounting holes corresponding to the positions of the edges of the backing plate 21 on the top plate of the T-shaped plate 51 may be provided, so that the T-shaped plate 51 and the backing plate 21 may be assembled by bolts passing through the mounting holes. So, roof and backing plate 21 through T template 51 are dismantled and are connected, have realized that spacing portion 5 and supporting part 2's dismantlement formula are connected, have made things convenient for this bridge section to carry under the condition of split, have reduced the transport degree of difficulty.
In the present embodiment, the U-shaped guide groove 50 is composed of the tie plate 21 and the vertical plates of the T-shaped plates 51 on both sides of the tie plate 21, and the guide rail portion 1 is composed of a plurality of i-beams arranged in parallel, as shown in fig. 1. So, the guide way 50 still further retrains a plurality of i-beams to guarantee the stable in structure of guide rail portion 1.
In this embodiment, the lower surface of the backing plate 21 is provided with a slider limiting portion 25, the slider limiting portion 25 is used for realizing a groove matched with the slider 22, and the top of the slider 22 is inserted into the groove. Specifically, in the present embodiment, the slider stopper 25 is implemented as a frame structure that is provided on the lower surface of the pad 21 and that is vertically aligned, and the slider 22 is inserted into the inner periphery of the frame structure and abuts against the pad 21. Thus, the non-connection and position constraint between the backing plate 21 and the slider 22 are achieved by the arrangement of the slider stopper 25. Therefore, the sliding block 22, the backing plate 21 and the guide rail part 1 are not fixedly connected, and the sliding block 22 which is easy to wear is convenient to replace.
The upper surface of the backing plate 21 is provided with a third stopper 23 and a fourth stopper 24. All the elevation adjusting devices 31 are located between the third blocking portion 23 and the fourth blocking portion 24, and all the elevation adjusting devices 31 are distributed along a connecting line direction of the third blocking portion 23 and the fourth blocking portion 24, and the connecting line direction of the third blocking portion 23 and the fourth blocking portion 24 is an extending direction of a shortest connecting line of the third blocking portion 23 and the fourth blocking portion 24. The third stopper 23 and the fourth stopper 24 are arranged so that the bottom portion restricts the relative positional relationship between the elevation adjusting means 31; the first blocking part 42 and the second blocking part 43 are matched for constraint from the relative position relationship between the top elevation adjusting devices 31, so that the relative positions between the elevation adjusting devices 31 are more stable, and the structure of the elevation adjusting part 3 is more reliable.
Height adjusting device
Referring to fig. 4 to 10, in the present embodiment, the elevation adjustment apparatus 31 includes two pressure sub-blocks 311 and two lift-up sub-blocks 312. The two pressure sub-blocks 311 are arranged oppositely in the horizontal direction, the two jacking sub-blocks 312 are matched with the two pressure sub-blocks 311 in a tapered wedge manner, and the two jacking sub-blocks 312 are distributed up and down; the upper surface of the jacking sub-block 312 positioned above is attached to the bearing plate 41, and the bottom surface of the jacking sub-block 312 positioned below is attached to the backing plate 21. The relative positions of the two pressed sub-blocks 311 in the horizontal direction are adjustable; the relative position of the two jack sub-blocks 312 in the vertical direction changes with the change in the relative position of the two pressure sub-blocks 311 in the horizontal direction. In this way, by adjusting the relative position between the two pressure sub-blocks 311, the height of the bearing plate 41 relative to the base plate 21 can be adjusted, thereby adjusting the settlement of the bridge.
In this embodiment, the elevation adjustment apparatus 31 further includes a screw 313 horizontally penetrating through the two pressure-receiving sub-blocks 311 and a nut 314 engaged with two ends of the screw 313, so that the relative position between the two pressure-receiving sub-blocks 311 is adjusted by the nut 314 at two ends of the screw 313. Specifically, when the loose nuts 314 at the two ends of the screw 313 are closed towards each other, the pressed sub-blocks 311 are closed towards each other and press the two jacking sub-blocks 312 to be away from each other, so as to lift the bearing plate 41 and the bridge; when the loose nuts 314 at the two ends of the screw 313 are far away from each other, a redundant space is provided for the pressed sub-blocks 311 to be far away from each other, and the two jacking sub-blocks 312 are close to each other and press the two pressed sub-blocks 311 to be far away from each other under the weight action of the bearing plate 41 and the bridge, so that the bridge is settled.
Specifically, in the present embodiment, the pressure receiving sub-block 311 includes a first main panel 3111, an upper swash plate 3112, a lower swash plate 3113, and a plurality of first special-shaped plates 3114. A plurality of first dysmorphism board 3114 setting that is parallel to each other is on first main panel 3111, and first dysmorphism board 3114 and first main panel 3111 all set up vertically, and first dysmorphism board 3114 is perpendicular to first main panel 3111 and sets up. Adjacent first profile plates 3114 are connected by a first partition 3115 disposed horizontally to ensure a stable structure between the adjacent first profile plates 3114. The first main panel 3111 is provided with a through hole engaged with the screw 313. The swash plate 3112 and the lower swash plate 3113 all are connected with each first dysmorphism board 3114, and the projection coincidence of swash plate 3112 and lower swash plate 3113 on the horizontal plane, and the swash plate 3112 and the one side that the lower swash plate 3113 deviates from first main panel 3111 draw close to each other. Specifically, in this embodiment, through holes are provided between adjacent first shaped plates 3114, that is, the number of the screws 313 is one less than the number of the first shaped plates 3114 in the pressure-receiving sub-block 311, and the screws 313 pass through between the adjacent first shaped plates 3114. In this way, the acceptance balance of the pressure sub-blocks 311 in the horizontal direction is ensured, and the stability of the relative movement between the pressure sub-blocks 311 and the stability of the relative movement between the jacking sub-blocks 312 are further ensured.
The lift sub-block 312 includes a second main panel 3121, a left inclined panel 3122, a right inclined panel 3123, and a plurality of second profiled plates 3124. A plurality of second shaped plates 3124 are provided in parallel with each other on the second main panel 3121, the second shaped plates 3124 are vertically provided, and the second main panel 3121 is horizontally provided. Adjacent second profiled panels 3124 are connected by a vertically disposed second partition 3125. The left inclined plate 3122 and the right inclined plate 3123 are connected to each second irregular plate 3124, and projections of the left inclined plate 3122 and the right inclined plate 3123 on a vertical plane perpendicular to the second irregular plates 3124 coincide, and sides of the left inclined plate 3122 and the right inclined plate 3123 departing from the second main panel 3121 are drawn together;
the left inclined plate 3122 and the right inclined plate 3123 of the top jacking sub-block 312 in the two jacking sub-blocks 312 are respectively attached to and slidably fitted with the upper inclined plates 3112 of the two pressure sub-blocks 311; the left inclined plate 3122 and the right inclined plate 3123 of the lower one of the two jack sub-blocks 312 are respectively attached to and slidably fitted to the lower inclined plates 3113 of the two pressure-receiving sub-blocks 311. And the second main panel 3121 of the upper jacking sub-block 312 is attached to the bearing plate 41, and the second main panel 3121 of the lower jacking sub-block 312 is attached to the backing plate 21.
In this embodiment, the number of the second irregular plates 3124 in the lift sub-block 312 is equal to the number of the first irregular plates 3114 in the pressure sub-block 311. Thus, when the elevation adjusting device is assembled, the first special-shaped plate 3114 and the second special-shaped plate 3124 can be in one-to-one correspondence, and the corresponding first special-shaped plate 3114 and the second special-shaped plate 3124 are located on the same vertical plane, so that the accepting balance of the two opposite sides of the upper inclined plate 3112, the lower inclined plate 3113, the left inclined plate 3122 and the right inclined plate 3123 is ensured, and the deformation of the upper inclined plate 3112, the lower inclined plate 3113, the left inclined plate 3122 and the right inclined plate 3123 is prevented.
The assembly method of the traction adjusting device for the integral bridge dragging construction comprises the following steps:
the first step is as follows: the third blocking part 23 and the fourth blocking part 24 are welded on the lower surface of the bearing plate 41, and the bridge bottom plate A and the bearing plate 41 are connected through bolts; and assembling the pressure sub-block 311 and the jacking sub-block 312, and further assembling the elevation adjusting device by combining the screw 313, the tightening nut 314, the pressure sub-block 311 and the jacking sub-block 312.
The second step is that: placing the slider 22 on the rail portion 1; the assembly of the support part 2 and the two limit parts 5 is completed by the bolted connection of the T-shaped plate 51 with the backing plate 21.
The third step: the support part 2 is placed on the slide block 22, so that the slide block 22 is embedded in a groove formed by the slide block limiting part 25 matching with the base plate 21, and the two limiting parts 5 matching with the support part 2 form a guide groove 50 matching with the guide rail part 1.
The fourth step: the third blocking part 23 and the fourth blocking part 24 are welded on the upper surface of the backing plate 21, a set number of elevation adjusting devices 31 are arranged between the third blocking part 23 and the fourth blocking part 24 in parallel, and the top parts of the elevation adjusting devices 31 are positioned between the third blocking part 23 and the fourth blocking part 24.
The fifth step: the height of the elevation adjustment device 31 is adjusted by the tightening nut 314, so that the second main panel 3121 of the upper jacking sub-block 312 abuts against the bearing plate 41.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A pull adjusting device for integral dragging construction of a bridge is characterized by comprising: the height adjusting device comprises a guide rail part (1), a supporting part (2), an elevation adjusting part (3) and a bridge mounting part (4); the guide rail part (1) consists of a plurality of I-shaped beams which are arranged in parallel;
the supporting part (2) is arranged on the guide rail part (1) in a sliding mode, the elevation adjusting part (3) comprises a plurality of elevation adjusting devices (31), the elevation adjusting devices (31) are arranged on the supporting part (2), and the elevation adjusting devices (31) are distributed in a straight line along the width direction of the guide rail part (1) in the horizontal direction; elevation adjusting device (31) is connected with bridge installation department (4), and elevation adjusting part (3) are used for adjusting bridge installation department (4) position in vertical direction, and bridge installation department (4) are used for connecting the bridge.
2. A traction adjustment device for integral bridge hauling construction according to claim 1, wherein the bridge mounting section (4) includes a bearing plate (41), a first stop (42) and a second stop (43); the bearing plate (41) is horizontally arranged, each elevation adjusting device (31) supports the bearing plate (41) from the lower surface, and the top of each elevation adjusting device (31) is adjustable in position in the vertical direction; the first blocking part (42) and the second blocking part (43) are arranged on the lower surface of the bearing plate (41) in parallel, and all the elevation adjusting devices (31) are positioned between the first blocking part (42) and the second blocking part (43).
3. A towing adjustment apparatus for integrated towing construction of a bridge according to claim 1, wherein the support portion (2) comprises a pad (21) and a slider (22), the slider (22) is slidably disposed on the rail portion (1), the pad (21) is disposed on the slider (22), the elevation adjustment apparatus (31) is disposed on the pad (21), and the elevation adjustment apparatus (31) is in damping engagement with the pad (21).
4. A towing adjustment apparatus for integral towing construction of a bridge according to claim 3, wherein the pad plate (21) is provided at both sides thereof with a limiting portion (5), the limiting portion (5) cooperates with the pad plate (21) to form a U-shaped guide groove (50) opening downward and cooperating with the guide rail portion (1), and the slider (22) is located in the guide groove (50).
5. A traction adjustment device for integral bridge dragging construction according to claim 4, wherein the limiting part (5) comprises a T-shaped plate (51) and right-angle support plates (52) arranged at the inner side and the outer side of the T-shaped plate (51), and the top plate of the T-shaped plate (51) is detachably connected with the backing plate (21).
6. A traction adjustment device for integral bridge hauling construction according to claim 4, wherein the slider (22) is of PTFE material.
7. A towing adjustment apparatus for integral towing construction of bridges according to claim 3, wherein the lower surface of the pad plate (21) is provided with a slider stopper (25), the slider stopper (25) is used to realize a groove engaged with the slider (22), and the top of the slider (22) is inserted into the groove.
8. A towing adjustment apparatus for integral type towing construction of bridges according to claim 3, wherein the pad plate (21) is provided at its upper surface with a third stopper (23) and a fourth stopper (24) in parallel with the first stopper (42) and the second stopper (43); all the elevation adjusting devices (31) are positioned between the third blocking part (23) and the fourth blocking part (24).
9. A traction adjustment device for integral bridge hauling construction according to claim 1, wherein the elevation adjustment device (31) comprises two pressure sub-blocks (311) and two jacking sub-blocks (312); the two pressure sub-blocks (311) are arranged oppositely in the horizontal direction, the two jacking sub-blocks (312) are matched with the wedges of the two pressure sub-blocks (311), and the two jacking sub-blocks (312) are distributed up and down; the upper surface of the jacking sub-block (312) positioned above is attached to the bearing plate (41), and the bottom surface of the jacking sub-block (312) positioned below is attached to the backing plate (21); the relative positions of the two pressed sub-blocks (311) in the horizontal direction are adjustable; the relative position of the two jacking sub-blocks (312) in the vertical direction changes along with the change of the relative position of the two pressure sub-blocks (311) in the horizontal direction.
10. A traction adjustment device for integral bridge dragging construction according to claim 9, wherein the elevation adjustment device (31) further comprises a screw (313) horizontally penetrating the two compression sub-blocks (311) and a loose nut (314) engaged with both ends of the screw (313);
the pressure-receiving sub-block (311) comprises a first main panel (3111), an upper inclined plate (3112), a lower inclined plate (3113) and a plurality of first special-shaped plates (3114); the plurality of first special-shaped plates (3114) are arranged on the first main panel (3111) in parallel, the first special-shaped plates (3114) and the first main panel (3111) are both arranged vertically, and the first special-shaped plates (3114) are arranged perpendicular to the first main panel (3111); the adjacent first special-shaped plates (3114) are connected through a first partition plate (3115) arranged horizontally; a through hole matched with the screw rod (313) is arranged on the first main panel (3111); the upper inclined plate (3112) and the lower inclined plate (3113) are connected with the first special-shaped plates (3114), the projections of the upper inclined plate (3112) and the lower inclined plate (3113) on the horizontal plane are overlapped, and the sides of the upper inclined plate (3112) and the lower inclined plate (3113) departing from the first main panel (3111) are close to each other;
the jacking sub-block (312) comprises a second main panel (3121), a left inclined plate (3122), a right inclined plate (3123) and a plurality of second special-shaped plates (3124); a plurality of second shaped plates (3124) are arranged in parallel on the second main panel (3121), the second shaped plates (3124) are arranged vertically, and the second main panel (3121) is arranged horizontally; the adjacent second special-shaped plates (3124) are connected by means of second partition plate (3125) vertically placed; the left inclined plate (3122) and the right inclined plate (3123) are connected to the second special-shaped plates (3124), and the projections of the left inclined plate (3122) and the right inclined plate (3123) on the vertical plane perpendicular to the second special-shaped plates (3124) coincide, and the sides of the left inclined plate (3122) and the right inclined plate (3123) which are away from the second main panel (3121) are drawn together;
the left inclined plate (3122) and the right inclined plate (3123) of the jacking sub-block (312) positioned above the two jacking sub-blocks (312) are respectively attached to the upper inclined plates (3112) of the two pressure sub-blocks (311) and are in sliding fit with the upper inclined plates; the left inclined plate (3122) and the right inclined plate (3123) of the jacking sub-blocks (312) positioned below in the two jacking sub-blocks (312) are respectively attached to the lower inclined plates (3113) of the two pressed sub-blocks (311) and are in sliding fit with the lower inclined plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111025458.9A CN113774799A (en) | 2021-09-02 | 2021-09-02 | Traction adjusting device for integral bridge dragging construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111025458.9A CN113774799A (en) | 2021-09-02 | 2021-09-02 | Traction adjusting device for integral bridge dragging construction |
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| Publication Number | Publication Date |
|---|---|
| CN113774799A true CN113774799A (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111025458.9A Pending CN113774799A (en) | 2021-09-02 | 2021-09-02 | Traction adjusting device for integral bridge dragging construction |
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| CN212771969U (en) * | 2020-06-24 | 2021-03-23 | 中铁十五局集团第五工程有限公司 | Bridge is assembled piece that unloads for stake system |
| CN213653229U (en) * | 2020-11-03 | 2021-07-09 | 袁彪 | Bridge sliding device with guiding function and capable of being heightened |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH02221504A (en) * | 1989-02-23 | 1990-09-04 | Maeda Corp | Method for push-out processing pc bridge |
| CN207079473U (en) * | 2017-05-31 | 2018-03-09 | 中铁二十一局集团第六工程有限公司 | The translating trolleys of Bailey beam on high pier stud Cast-in-situ Beam steel pipe column temporary rest pier |
| CN209703330U (en) * | 2019-01-22 | 2019-11-29 | 铁正检测科技有限公司 | A kind of adjustable height bridge slide device having guide function |
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Application publication date: 20211210 |