CN217419358U

CN217419358U - Over-span pressure adjusting device for section splicing bridge girder erection machine

Info

Publication number: CN217419358U
Application number: CN202221448678.2U
Authority: CN
Inventors: 秦德贵; 赵宏; 罗平; 蔡正茂; 曾雨生; 李玉飞; 李刚; 卢涛; 罗领
Original assignee: CCCC SHEC Fourth Engineering Co Ltd
Current assignee: CCCC SHEC Fourth Engineering Co Ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-13
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a be used for festival to piece together bridging machine and cross pressure adjustment device, the top of landing leg has the mount pad through bolted connection, and the inside of mount pad is provided with the supporting seat, and the top sliding connection of supporting seat has the girder, and it has pressure sensor round pin axle two to peg graft between mount pad and the supporting seat, and the bottom of girder is provided with and indulges the hydro-cylinder that moves, and it has pressure sensor round pin axle one to peg graft in the inside of supporting seat, and the one end of indulging the hydro-cylinder is passed through pressure sensor round pin axle one and is articulated with the supporting seat. The utility model discloses a pressure sensor round pin axle two and pressure sensor round pin axle one that set up, the thrust that utilizes a pair of girder of pressure sensor round pin axle to indulge to move feeds back to data integration module, and then makes the aperture of hydraulic power unit overflow valve can adjust suitable size according to the power of feedback, and then realizes bridging machine and cross the more accurate effect of pressure adjustment, prevents the too big production accident of turning on one's side of landing leg atress.

Description

Over-span pressure adjusting device for section-splicing bridge girder erection machine

Technical Field

The utility model relates to a bridge girder erection machine technical field, concretely relates to be used for festival to piece together bridge girder erection machine and cross pressure regulating device.

Background

The segment assembling bridge girder erection machine generally comprises five parts, namely a main frame (main beam), a supporting structure (supporting leg), a hoisting crown block, a complete machine longitudinal moving mechanism, a hanging system and the like. After the bridge girder erection machine completes construction of a one-span concrete box girder, the bridge girder erection machine is completed by pushing the bridge girder erection machine to move forwards through upper longitudinal moving mechanisms of the front and rear sets of supporting structures, and hoisting construction of the next-span concrete box girder is performed after the bridge girder erection machine completes the cross-span construction;

when the girder of the bridge girder erection machine strides, the positive pressure of the supporting leg supporting mechanism is constantly changed along with the forward movement of the girder of the bridge girder erection machine, the friction force acting on the supporting leg is also changed due to the change of the positive pressure, and the thrust of the supporting leg longitudinal moving mechanism needs to be correspondingly changed according to the friction force, so that the horizontal force borne by the supporting leg is ensured to be small, and the occurrence of the overturning accident of the supporting leg is prevented.

When the over-span pressure adjustment is carried out by the bridge girder erection machine in the prior art, only the positive pressure received by the supporting leg is collected to adjust the thrust of the longitudinal moving oil cylinder, so that the thrust adjustment of the longitudinal moving oil cylinder is not accurate, and the bridge girder erection machine is easy to topple due to the overlarge longitudinal moving thrust received by the supporting leg. Therefore, it is desirable to design an over-span pressure adjusting device for a bridge erecting machine to solve the above problems.

Disclosure of Invention

The utility model aims at providing a be used for festival to piece together bridging machine and cross pressure regulating device to solve the above-mentioned weak point among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a pressure adjusting device is striden to bridge girder erection machine that is used for festival to piece together, includes the landing leg, there is the mount pad at the top of landing leg through bolted connection, the inside of mount pad is provided with the supporting seat, the top sliding connection of supporting seat has the girder, it has pressure sensor round pin axle two to peg graft between mount pad and the supporting seat, the bottom of girder is provided with and indulges the hydro-cylinder that moves, it has pressure sensor round pin axle one to peg graft in the inside of supporting seat, it is articulated with the supporting seat through pressure sensor round pin axle one to indulge the one end of moving the hydro-cylinder.

Preferably, the inside of mount pad is provided with the installation cavity, the bottom inner wall of installation cavity is connected with two screws through the bearing, the top of screw rod has the swivel nut through threaded connection, two the top welding of swivel nut has the roof.

Preferably, the outside welding of screw rod has the worm wheel, be connected with the worm through the bearing between the both sides inner wall of installation cavity, the worm all meshes with two worm wheels, the outside welding that the one end of worm extended to the mount pad has the hand wheel.

Preferably, the top outer wall welding of roof has two reference columns, the bottom outer wall of supporting seat is opened has two locating holes with reference column looks adaptation.

In the technical scheme, the utility model provides a pair of a pressure regulating device is striden to bridge girder erection machine is pieced together to festival, beneficial effect is: (1) the thrust of the longitudinal movement of the pair of main beams of the pressure sensor pin shaft is fed back to the data integration module by the aid of the pressure sensor pin shaft II and the pressure sensor pin shaft I, so that the opening of an overflow valve of a hydraulic pump station can be adjusted to a proper size according to the fed-back force, a more accurate effect of adjusting the over-span pressure of the bridge girder erection machine is achieved, and rollover accidents caused by overlarge stress of supporting legs are prevented; (2) the worm, the worm wheel and the screw sleeve are arranged, and the worm wheel and the screw rod are driven to rotate by the rotation of the worm, so that the pressure generated by the supporting seat on the pressure sensor pin shaft II can be reduced by the screw rod through the top plate, and the pressure sensor pin shaft II can be conveniently extracted and replaced; (3) through the locating column and the locating hole that set up, utilize the locating column to cooperate with the locating hole of supporting seat bottom, prevent that pressure sensor round pin axle two takes out the phenomenon that the back supporting seat takes place to turn on one's side for pressure sensor round pin axle two's change is safer.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of a main view structure provided by an embodiment of a pressure adjusting device for a section splicing bridge girder erection machine.

Fig. 2 is the internal structure schematic diagram provided by the embodiment of the pressure adjusting device for over-span of the section-splicing bridge girder erection machine.

Fig. 3 is a control flow chart provided by an embodiment of the over-span pressure adjusting device for the section splicing bridge erecting machine of the utility model.

Description of reference numerals:

the device comprises a supporting leg 1, a supporting seat 2, a longitudinal moving oil cylinder 3, a pressure sensor pin I4, a pressure sensor pin II 5, a main beam 6, a mounting seat 7, a mounting cavity 8, a screw rod 9, a worm wheel 10, a threaded sleeve 11, a top plate 12, a positioning hole 13, a positioning column 14, a worm 15 and a hand wheel 16.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the attached drawings.

As shown in fig. 1-3, the embodiment of the utility model provides a be used for festival to piece together bridging machine and cross pressure regulating device, including landing leg 1, there is mount pad 7 at landing leg 1's top through bolted connection, and the inside of mount pad 7 is provided with supporting seat 2, and the top sliding connection of supporting seat 2 has girder 6, and it has pressure sensor round pin axle two 5 to peg graft between mount pad 7 and the supporting seat 2, and the bottom of girder 6 is provided with and indulges and move hydro-cylinder 3, and it has pressure sensor round pin axle one 4 to peg graft in the inside of supporting seat 2, and the one end of indulging to move hydro-cylinder 3 is passed through pressure sensor round pin axle one 4 and is articulated with supporting seat 2.

Specifically, in the embodiment, the supporting leg comprises a supporting leg 1, and further comprises a data integration module, a hydraulic pump station controller and a hydraulic pump station overflow valve which have an adjusting effect on the cross pressure in the prior art, the supporting leg 1 is a supporting structure, the top of the supporting leg 1 is connected with an installation base 7 through a bolt, a supporting base 2 is arranged inside the installation base 7, the top of the supporting base 2 is connected with a main beam 6 in a sliding manner, the main beam 6 is a main frame needing to be crossed, a pressure sensor pin shaft two 5 is inserted between the installation base 7 and the supporting base 2, the type of the pressure sensor pin shaft two 5 is preferably LZ-ZX9, a longitudinal moving oil cylinder 3 is arranged at the bottom of the main beam 6, a pressure sensor pin shaft one 4 is inserted inside the supporting base 2, the type of the pressure sensor pin shaft one 4 is preferably LZ-ZX9, one end of the longitudinal moving oil cylinder 3 is hinged to the supporting base 2 through the pressure sensor pin shaft one 4, the longitudinal moving oil cylinder 3 can rotate with the supporting seat 2, when the longitudinal moving oil cylinder 3 longitudinally moves the main beam 6 to pass through the span, the positive pressure condition of the main beam 6 on the supporting leg 1 is detected through the pressure sensor pin shaft two 5, the detected pressure is converted into a digital signal and transmitted to the data integration module, the pressure distribution of the supporting leg 1 is determined through the comparison and analysis of the data integration module on a data collection and processor, the distribution signal is transmitted to the corresponding hydraulic pump station controller, meanwhile, the pressure sensor pin shaft one 4 detects the longitudinal moving force provided by the longitudinal moving oil cylinder 3 on the main beam 6, the integration module receives a stress data signal fed back by the pressure sensor pin shaft one 4, the integration module transmits information to the hydraulic pump station controller in real time according to the stress data signal fed back by the pressure sensor pin shaft one 4, so that the hydraulic pump station controller controls the opening degree of an overflow valve to be adjusted to an accurate position, thereby realizing the effect of accurately adjusting the over-span pressure.

The utility model provides a pair of a pressure adjustment device is striden to pressure for economizing bridging machine, through pressure sensor round pin axle two 5 and the pressure sensor round pin axle 4 that sets up, utilize pressure sensor round pin axle 4 to indulge the thrust that moves to girder 6 and feed back to data integration module, and then make the aperture of hydraulic power unit overflow valve can adjust suitable size according to the power of feedback, and then realize bridging machine and cross more accurate effect of pressure adjustment, prevent that 1 atress of landing leg from producing the accident of turning on one's side excessively.

The utility model provides a further embodiment, the inside of mount pad 7 is provided with installation cavity 8, and the bottom inner wall of installation cavity 8 is connected with two screw rods 9 through the bearing, and threaded connection has swivel nut 11 at the top of screw rod 9, and the top welding of two swivel nuts 11 has roof 12 for can rise swivel nut 1 and roof 12 when two screw rods 9 rotate in step.

The utility model provides a further embodiment, the outside welding of screw rod 9 has worm wheel 10, be connected with worm 15 through the bearing between the both sides inner wall of installation cavity 8, worm 15 all meshes with two worm wheel 10, the outside welding that the one end of worm 15 extends to mount pad 7 has hand wheel 16, rotation through worm 15 drives worm wheel 10 and screw rod 9 and rotates, make screw rod 9 can reduce the pressure that supporting seat 2 produced pressure sensor round pin axle two 5 through roof 12, make pressure sensor round pin axle two 5 conveniently take out the change.

The utility model provides a further embodiment, the welding of the top outer wall of roof 12 has two reference columns 14, and the bottom outer wall of supporting seat 2 is opened has two locating holes 13 with reference column 14 looks adaptation, cooperates through locating column 14 and the locating hole 13 of supporting seat 2 bottom, prevents that pressure sensor round pin axle two 5 from taking out the phenomenon that back supporting seat 2 took place to turn on one's side for pressure sensor round pin axle two 5's change is safer.

The working principle is as follows: when the longitudinal moving oil cylinder 3 longitudinally moves the main beam 6 to cross the span, the positive pressure condition of the main beam 6 to the supporting leg 1 is detected through the pressure sensor pin shaft two 5, the detected pressure is converted into a digital signal and transmitted to a data integration module, the pressure distribution of the supporting leg 1 is determined through the comparison and analysis of the data integration module to a data collection and processor, the distribution signal is transmitted to a corresponding hydraulic pump station controller, meanwhile, the first pressure sensor pin shaft 4 detects the longitudinal movement force provided by the longitudinal movement oil cylinder 3 to the main beam 6, the integrated module receives a stress data signal fed back by the pressure sensor pin shaft I4, the integrated module transmits information to the hydraulic pump station controller at any time according to the stress data signal fed back by the pressure sensor pin shaft I4, the hydraulic pump station controller controls the opening of the overflow valve to be adjusted to an accurate position, and then the effect of accurately adjusting the over-pressure is achieved; when needs are changed pressure sensor round pin axle two 5, rotate worm 15 through hand wheel 16, make worm 15 drive worm wheel 10 and screw rod 9 rotate, and then make the rotation of screw rod 9 drive swivel nut 11 and roof 12 rise, make the reference column 14 at roof 12 top peg graft in the inside of the locating hole 13 of supporting seat 2 bottom, along with the continuation of roof 12 rises, make supporting seat 2 reduce pressure sensor round pin axle two 5, and then can be convenient extract pressure sensor round pin axle two 5 and change, drive the laborsaving structure of worm 15 through worm wheel 10, make the more laborsaving of dismantlement of pressure sensor round pin axle two 5.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive on the scope of the appended claims.

Claims

1. The utility model provides a cross pressure adjusting device for festival concatenation bridge girder erection machine, a serial communication port, including landing leg (1), there is mount pad (7) at the top of landing leg (1) through bolted connection, the inside of mount pad (7) seat is provided with supporting seat (2), the top sliding connection of supporting seat (2) has girder (6), it has pressure sensor round pin axle two (5) to peg graft between mount pad (7) and supporting seat (2), the bottom of girder (6) is provided with and indulges and moves hydro-cylinder (3), the inside of supporting seat (2) is pegged graft and is had pressure sensor round pin axle one (4), the one end of indulging and moving hydro-cylinder (3) is articulated with supporting seat (2) through pressure sensor round pin axle one (4).

2. The over-span pressure adjusting device for the section bridge erecting machine according to claim 1, wherein a mounting cavity (8) is arranged inside the mounting seat (7), the inner wall of the bottom of the mounting cavity (8) is connected with two screw rods (9) through bearings, the top of each screw rod (9) is connected with a threaded sleeve (11) through a thread, and a top plate (12) is welded at the top end of each threaded sleeve (11).

3. The over-span pressure adjusting device for the section bridge erecting machine according to claim 2 is characterized in that a worm wheel (10) is welded outside the screw rod (9), a worm (15) is connected between the inner walls of two sides of the installation cavity (8) through a bearing, the worm (15) is meshed with the two worm wheels (10), and a hand wheel (16) is welded outside one end of the worm (15) extending to the installation seat (7).

4. The over-span pressure adjusting device for the segmental bridge girder erection machine according to claim 2, wherein two positioning columns (14) are welded on the outer wall of the top plate (12), and two positioning holes (13) matched with the positioning columns (14) are formed in the outer wall of the bottom of the supporting seat (2).