CN208023413U - A kind of linear adjuster of track girder flexural pivot - Google Patents
A kind of linear adjuster of track girder flexural pivot Download PDFInfo
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- CN208023413U CN208023413U CN201721676005.1U CN201721676005U CN208023413U CN 208023413 U CN208023413 U CN 208023413U CN 201721676005 U CN201721676005 U CN 201721676005U CN 208023413 U CN208023413 U CN 208023413U
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- jack
- machine frame
- leading screw
- crossbeam
- track girder
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Abstract
The utility model discloses a kind of linear adjusters of track girder flexural pivot, include the machine frame on bent cap and the embedded crossbeam being mounted on inside machine frame, the both ends of the machine frame are equipped with U-shaped limiting slot, the centre position of the machine frame is equipped with load bearing cross beam with crossbeam corresponding position, movable jack base crossbeam is installed above the load bearing cross beam, three-dimensional jack is installed above the activity jack base crossbeam, jack upper beam is installed at the top of the three-dimensional jack, the utility model supports matched working method using three-dimensional jack with leading screw, so that the precision higher of the linear accurate adjustment of track girder flexural pivot；Machine frame is using section steel manufacture and using temporary support pre-buried on beam of revealing all the details, and lower and upper cross-member matches fining twisted steel tie rods, and bearing capacity is strong, and the purpose for preventing from tumbling when rising and falling track girder is played while reaching accurate adjustment track girder line style purpose.
Description
Technical field
The utility model is related to track girder technical field of construction, specially a kind of linear adjuster of track girder flexural pivot.
Background technology
China is currently in the swift and violent period of economic development, and the convenience of traffic stands in the breach, and becomes one of obstacle, therefore
The construction of track girder is just more urgent, and common construction method has cast in situs, freely-supported to become and connects in current conventional continuous system
Continuous and section assembling several method.Since track girder is very stringent to size and alignment control required precision, using cast in situs
Or the method for section assembling is difficult to meet the requirements；When using continuous system, it is necessary to use based on prefabrication, be aided with scene
The Simply supported non-uniform mode of cast-in-place connection.It is first prefabricated in the factory into the single beam for meeting required precision, then transports to scene, is hung
Continuous structure is formed in joint casting concrete again after dress is in place, the construction method of this " simple-supported thencontinuous " is in state
It has been used on interior highway, railroad bridge and has had accumulated abundant experience for many years, however faced continuous rigid frame PC track girders, straddle seat
The line style of formula monorail track beam and required precision much cannot be satisfied requirement, need us and solve.
Utility model content
（One）The technical issues of solution
In view of the deficiencies of the prior art, the utility model provides a kind of linear adjuster of track girder flexural pivot, solves
The construction method of " simple-supported thencontinuous " set forth above cannot be satisfied the problem of continuous rigid frame PC track girder required precisions.
（Two）Technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of track girder flexural pivot is linear
The crossbeam that adjuster includes the machine frame on bent cap and is embedded in inside machine frame, the two of the machine frame
End is equipped with U-shaped limiting slot, and the upper surface of machine frame is equipped with slidably temporarily with both ends limiting slot corresponding position
Connector, centre position and the crossbeam corresponding position of the machine frame are equipped with load bearing cross beam, the top of the load bearing cross beam
Movable jack base crossbeam is installed, three-dimensional jack is installed above the activity jack base crossbeam, described three
Jack upper beam is installed, bottom and the crossbeam corresponding position of the machine frame are equipped with jack at the top of dimension jack
Bottom end rail, the load bearing cross beam are an integral structure with movable jack base crossbeam, and load bearing cross beam and jack upper beam
Perforative fining twisted steel is installed between jack bottom end rail, is equipped on beam above the jack bottom end rail interim
It supports, steel pipe flexural pivot, the upper surface pair of the lower section and bent cap of the steel pipe flexural pivot is welded with below temporary support on the beam
It answers and is embedded with steel plate at position,
It is limited by anti-dumping earrings between the machine frame and crossbeam, the crossbeam passes through overturn-preventing silk with anti-dumping earrings
Thick stick is fixedly connected, and leading screw support is also equipped between crossbeam and machine frame, and the bottom of the machine frame also passes through fixing tool
Frame bolt is fixedly connected with bent cap, and the one side wall of machine frame is equipped with the pre-buried temporary support of track girder.
Preferably, the steel pipe flexural pivot further includes steel cylinder under metal fixture block, metal leading screw and temporary support, the interim branch
Support is lower to be welded with metal ball between steel cylinder and metal fixture block.
Preferably, the three-dimensional jack is at least the jack of 100t using bearing capacity, and three-dimensional jack also wraps
The precision regulating system of fluid pressure type is included, the precision regulating system of fluid pressure type is controlled by electric hydraulic station or hydraulic hand-pump.
Preferably, leading screw support is slanting leading screw, and leading screw support by solid leading screw, leading screw steel pipe sleeve,
Leading screw top, lead screw base head, solid round steel, hex nut and steel wire rope composition, the leading screw steel pipe sleeve connect with leading screw rotation
It connects.
（Three）Advantageous effect
The utility model provides a kind of linear adjuster of track girder flexural pivot.Has following advantageous effect：Using three-dimensional
Jack supports matched working method with leading screw so that the precision higher of the linear accurate adjustment of track girder flexural pivot, three-dimensional jack
Can around, upper and lower three directions be finely adjusted, large carrying capacity is applied widely, using easy-to-operate, i.e.,
Can Electronic control it is also manually controllable, non-transformer can also work；Machine frame is using section steel manufacture and using pre-buried on beam of revealing all the details
Temporary support, lower and upper cross-member match fining twisted steel tie rods, bearing capacity is strong, while reaching accurate adjustment track girder line style purpose from
To the purpose for preventing from tumbling when rising and falling track girder.
Description of the drawings
Fig. 1 is the structure principle chart of the utility model；
Fig. 2 is the side cross-sectional semi-cutaway of the utility model；
Fig. 3 is the structural schematic diagram of the utility model steel pipe flexural pivot；
Fig. 4 is partial enlarged view at A in the utility model Fig. 1.
In figure：1- steel plates, 2- steel pipes flexural pivot, 3- metal balls, temporary support, the support of 5- leading screws, 6- are connected temporarily on 4- beams
Part, 7- overturn-preventings leading screw, 8- fining twisted steels, 9- jack upper beam, 10- three-dimensionals jack, 11- jack bases crossbeam,
12- load bearing cross beams, 13- machine frames, 14- jack bottom end rail, 15- anti-dumpings earrings, 16- regular worker shelve bolt, 17- track girders
Pre-buried temporary support, 18- crossbeams.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model embodiment provides a kind of linear adjuster of track girder flexural pivot, as shown in Figs 1-4, including is mounted on
Machine frame 13 on bent cap and the embedded crossbeam 18 being mounted on inside machine frame 13, the both ends of machine frame 13 are equipped with U-shaped limit
Position slot, and the upper surface of machine frame 13 is equipped with slidable temporary connection 6, machine frame with both ends limiting slot corresponding position
13 centre position and 18 corresponding position of crossbeam are equipped with load bearing cross beam 12, and it is very heavy that the top of load bearing cross beam 12 is equipped with activity
Base crossbeam 11 is pushed up, the top of movable jack base crossbeam 11 is equipped with three-dimensional jack 10, the top of three-dimensional jack 10
Jack upper beam 9 is installed, bottom and 18 corresponding position of crossbeam of machine frame 13 are equipped with jack bottom end rail 14, load-bearing
Crossbeam 12 is an integral structure with movable jack base crossbeam 11, and load bearing cross beam 12 and jack upper beam 9 and jack
Perforative fining twisted steel 8 is installed between bottom end rail 14, the top of jack bottom end rail 14 is equipped with temporary support 4 on beam,
The lower section of temporary support 4 is welded with steel pipe flexural pivot 2 on beam, and the lower section of steel pipe flexural pivot 2 and the upper surface corresponding position of bent cap are pre-
It is embedded with steel plate 1,
It is limited by anti-dumping earrings 15 between machine frame 13 and crossbeam 18, crossbeam 18 passes through overturn-preventing with anti-dumping earrings 15
Leading screw 7 is fixedly connected, and leading screw support 5 is also equipped between crossbeam 18 and machine frame 13, and the bottom of machine frame 13 is also by solid
Determine machine frame bolt 16 to be fixedly connected with bent cap, and the one side wall of machine frame 13 is equipped with the pre-buried temporary support of track girder 17.
In the utility model, steel pipe flexural pivot 2 further includes steel cylinder under metal fixture block 201, metal leading screw 202 and temporary support
203, metal ball 3 is welded under temporary support between steel cylinder 203 and metal fixture block 201, under temporary support on the inner wall of steel cylinder 203
It is tapped with internal thread, metal ball 3 and metal fixture block 201 are all made of No. 45 special steels and make, and steel cylinder 203 is by inner wall under temporary support
Internal thread the adjusting of height is realized by rotation, realize freely adjust for the space inner orbit beam rail level gradient, and do not have to divide
The cushion block that different gradients is fabricated separately different gradients in safety pin carries out track girder slope surface adjustment, practical and conveniently.
In the utility model, three-dimensional jack 10 is at least the jack of 100t, and three-dimensional jack using bearing capacity
10 further include the precision regulating system of fluid pressure type, and the precision regulating system of fluid pressure type is by electric hydraulic station or hydraulic hand-pump control
System can be very good to adapt to non-transformer operation, working efficiency higher, upper and lower, front and back and three sides in left and right of three-dimensional jack 10
It is upwards two-way cylinder.
In the utility model, leading screw support 5 is slanting leading screw, and leading screw support 5 is by solid leading screw, leading screw steel pipe socket
Cylinder, leading screw top, lead screw base head, solid round steel, hex nut and steel wire rope composition, leading screw steel pipe sleeve connect with leading screw rotation
It connects, by the flexible of rotating threaded shaft steel pipe sleeve, achievees the purpose that the superelevation horizontal slope angle for adjusting track girder.
Operation principle：Erector shelves 13 first when the utility model is used, the master for stretching out bent cap in Coping Construction
Muscle is cut on bent cap first time concrete surface, using mechanical connection, the glitch-free main reinforcement in its bent cap top surface is made to influence erector
13 are shelved, needs to clear up top surface of the beam on the bent cap for adjusting line style one, uneven place is leveled up with sheet metal, then with crane by tooling
Frame 13 is mounted on bent cap, so that it is stuck on the convex block of bent cap, then shelve bolt 16 with regular worker and be fixed on bent cap convex block side；
Crossbeam 18 is risen and is hung in machine frame 13 by crane, and when hanging beam should be noted that track girder must be in storage ability no less than after 3 months
It sets up, to reduce later stage deflection and uncertainty；The correct three-dimensional jack 10 of installation waits for three-dimensional jack 10, on jack
After crossbeam 9, jack bottom end rail 14 and fining twisted steel 8 are in place, track girder is fallen on jack bottom end rail 14, adjusts anti-dumping
Leading screw 7 is covered, the pull rod on the pull rod and bent cap on slanting leading screw support 5 and track girder is installed；It checks safety, confirms peace
Suspension hook is removed after complete；Positioning point design three-dimensional coordinate and actual measurement anchor point three-dimensional coordinate on track girder are calculated, according to the song of circuit
The elements such as line radius, elevation, across footpath, longitudinal slope, horizontal slope calculate the design three-dimensional coordinate of track girder both ends anchor point, then use
The practical three-dimensional coordinate of the total Station Measured anchor point, is compared；Pass through three-dimensional jack 10 and leading screw branch according to structure is calculated
5 accurate adjustment track girder line styles are supportted, the three-dimensional jack 10 at one every beam both ends needs line while linking, at track girder at this time
In micro- free state, three-dimensional jack 10, computer, total powerstation are connected, the three of the anchor point at the track girder both ends of In-put design
Dimension coordinate starts three-dimensional jack and carries out real-time accurate adjustment, and it is pre-buried to withstand on track girder on steel pipe flexural pivot 2 immediately after accurate adjustment in place
On the bottom steel plate of temporary support 17, under be against on the pre-buried steel plate 1 of bent cap, with arc welding by the metal fixture block 201 of steel pipe flexural pivot 2
Carry out welding locking with pre-buried 17 contact position of temporary support of track girder, at the same by steel cylinder 203 under the temporary support of steel pipe flexural pivot 2 with
Pre-buried 1 contact position of steel plate of bent cap carries out welding locking, and installs slanting leading screw support 5 simultaneously, and superelevation horizontal slope angle uses
Leading screw support 5 is adjusted；Accurate adjustment carries out repetition measurement after 2 hours, after repetition measurement line style meets design requirement, removing machine frame 13 is
It can.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of linear adjuster of track girder flexural pivot, includes the machine frame on bent cap（13）It is mounted on tooling with embedded
Frame（13）Internal crossbeam（18）, it is characterised in that：The machine frame（13）Both ends be equipped with U-shaped limiting slot, and tooling
Frame（13）Upper surface and both ends limiting slot corresponding position slidable temporary connection is installed（6）, the machine frame
（13）Centre position and crossbeam（18）Corresponding position is equipped with load bearing cross beam（12）, the load bearing cross beam（12）Top peace
Equipped with movable jack base crossbeam（11）, the activity jack base crossbeam（11）Top three-dimensional jack is installed
（10）, the three-dimensional jack（10）Top jack upper beam is installed（9）, the machine frame（13）Bottom and crossbeam
（18）Corresponding position is equipped with jack bottom end rail（14）, the load bearing cross beam（12）With movable jack base crossbeam（11）
It is an integral structure, and load bearing cross beam（12）With jack upper beam（9）With jack bottom end rail（14）Between be equipped with and run through
Fining twisted steel（8）, the jack bottom end rail（14）Top temporary support on beam is installed（4）, interim on the beam
Support（4）Lower section be welded with steel pipe flexural pivot（2）, the steel pipe flexural pivot（2）Lower section and bent cap upper surface corresponding position
It is embedded with steel plate（1）,
The machine frame（13）With crossbeam（18）Between pass through anti-dumping earrings（15）Limit, the crossbeam（18）With anti-dumping earrings
（15）Pass through overturn-preventing leading screw（7）It is fixedly connected, and crossbeam（18）With machine frame（13）Between be also equipped with leading screw support（5）,
The machine frame（13）Bottom bolt is also shelved by regular worker（16）It is fixedly connected with bent cap, and machine frame（13）Side
Wall is equipped with the pre-buried temporary support of track girder（17）.
2. a kind of linear adjuster of track girder flexural pivot according to claim 1, it is characterised in that：The steel pipe flexural pivot
（2）It further include metal fixture block（201）, metal leading screw（202）With steel cylinder under temporary support（203）, steel cylinder under the temporary support
（203）With metal fixture block（201）Between be welded with metal ball（3）.
3. a kind of linear adjuster of track girder flexural pivot according to claim 1, it is characterised in that：The three-dimensional jack
（10）It is at least the jack of 100t, and three-dimensional jack using bearing capacity（10）The precision for further including fluid pressure type adjusts system
The precision regulating system of system, fluid pressure type is controlled by electric hydraulic station or hydraulic hand-pump.
4. a kind of linear adjuster of track girder flexural pivot according to claim 1, it is characterised in that：The leading screw support
（5）For slanting leading screw, and leading screw supports（5）By solid leading screw, leading screw steel pipe sleeve, leading screw top, lead screw base head, solid
Round steel, hex nut and steel wire rope composition, the leading screw steel pipe sleeve are rotatablely connected with leading screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676005.1U CN208023413U (en) | 2017-12-06 | 2017-12-06 | A kind of linear adjuster of track girder flexural pivot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676005.1U CN208023413U (en) | 2017-12-06 | 2017-12-06 | A kind of linear adjuster of track girder flexural pivot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208023413U true CN208023413U (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721676005.1U Active CN208023413U (en) | 2017-12-06 | 2017-12-06 | A kind of linear adjuster of track girder flexural pivot |
Country Status (1)
| Country | Link |
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| CN (1) | CN208023413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841954A (en) * | 2017-12-06 | 2018-03-27 | 中铁十局集团第三建设有限公司 | A kind of linear adjuster of track girder ball pivot and method |
| CN111307608A (en) * | 2020-03-31 | 2020-06-19 | 福州亿邦塑胶有限公司 | Pliability detection device is used in composite cloth production |
-
2017
- 2017-12-06 CN CN201721676005.1U patent/CN208023413U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841954A (en) * | 2017-12-06 | 2018-03-27 | 中铁十局集团第三建设有限公司 | A kind of linear adjuster of track girder ball pivot and method |
| CN107841954B (en) * | 2017-12-06 | 2024-06-18 | 中铁十局集团第三建设有限公司 | Track beam spherical hinge line-shaped fine adjustment device and method |
| CN111307608A (en) * | 2020-03-31 | 2020-06-19 | 福州亿邦塑胶有限公司 | Pliability detection device is used in composite cloth production |
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