CN112942138B - High-precision walking pushing equipment - Google Patents
High-precision walking pushing equipment Download PDFInfo
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- CN112942138B CN112942138B CN202110049047.7A CN202110049047A CN112942138B CN 112942138 B CN112942138 B CN 112942138B CN 202110049047 A CN202110049047 A CN 202110049047A CN 112942138 B CN112942138 B CN 112942138B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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Abstract
The invention discloses high-precision walking pushing equipment which comprises a support; the jacking main body is arranged on the support through a plurality of first jacking jacks so as to control the inclination angle of the jacking main body; the second jacking jacks are positioned at the top ends of the jacking main bodies; displacement sensors are respectively arranged on the first jacking jack, the second jacking jack and the jacking jack so as to monitor jacking displacement of the first jacking jack, the second jacking jack and the jacking jack in real time; and the control unit is used for respectively controlling the first jacking jack, the second jacking jack and the extension or retraction of the jacking jacks. The pushing equipment disclosed by the invention is high in pushing precision, can realize large-range pushing, and can realize adjustment of a pushing angle according to actual requirements and pushing of an inclination angle in a pushing process.
Description
Technical Field
The invention relates to the field of high-precision walking pushing equipment. More particularly, the present invention relates to a high precision walking pushing apparatus.
Background
The walking type pushing equipment is a special tool for lifting displacement, has large jacking load, is mainly applied to multi-fulcrum displacement control of railway, highway bridges or similar beam type members, and realizes transverse (X) deviation correction, longitudinal (Y) propulsion and vertical jacking (Z) positioning. However, the walking pushing equipment used in the existing engineering is a simple pushing jack, and has the problems of low pushing precision and only realization of pushing in a completely horizontal direction.
Disclosure of Invention
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a high-precision walking pushing apparatus including:
a support;
the jacking main body is arranged on the support through a plurality of first jacking jacks, the position of the support corresponding to the telescopic end of each first jacking jack is sunken inwards to form a limiting groove with a cambered surface, the telescopic end of each first jacking jack is rotatably hinged with a hinged ball, and the hinged ball is rotatably arranged in the limiting groove without falling off, so that the first jacking jack is connected with the support; controlling the jacking degree of different first jacking jacks so as to control the inclination angle of the jacking main body;
the second jacking jacks are arranged on the support and are positioned at the top end of the jacking main body, wherein top ends of the second jacking jacks are vertically provided with top plates, slide rails are arranged on the surfaces of the top plates, the second jacking jacks are linearly distributed, and the slide rails on the top plates are also linearly distributed;
the pushing jacks are respectively arranged at the front end and the rear end of the pushing main body;
displacement sensors are respectively arranged on the first jacking jack, the second jacking jack and the jacking jacks so as to monitor jacking displacement of the first jacking jack, the second jacking jack and the jacking jacks in real time;
and the control unit is respectively connected with the first jacking jack, the second jacking jack and the pushing jack in a control mode and controls the first jacking jack, the second jacking jack and the pushing jack to extend or retract.
According to a preferred embodiment of the present invention, the high precision walking pushing apparatus further comprises:
a plurality of third jacking devices which are arranged on the support and are respectively positioned at the front end and the rear end of the jacking main body,
the third jacking device comprises a third jacking jack, a supporting rod and a wane, the supporting rod is vertically arranged, the telescopic end of the third jacking jack is vertically arranged upwards, the supporting rod is positioned between the third jacking jack and the jacking main body, the telescopic end of the third jacking jack is hinged to one end of the wane, the wane is hinged to the top end of the supporting rod, the other end of the wane is horizontally provided with a supporting mechanism, the distance from the telescopic end of the third jacking jack to one end of the supporting rod is L1, the distance from the supporting rod to the supporting mechanism is L2, and L1 is larger than L2;
the third jacking devices are distributed around the second jacking jack.
According to a preferred embodiment of the invention, the maximum jacking height of the third jacking jack is greater than the maximum jacking height of the second jacking jack.
According to a preferred embodiment of the invention, the device further comprises a base, the support is arranged on the base, the size of the support is smaller than that of the base, and the support can move along the length direction of the base under the driving of a power mechanism; the base is sunken to form a plurality of accommodating grooves distributed at intervals, the accommodating grooves are positioned around the support, and a lifting limiting rod is arranged in each accommodating groove in a lifting manner;
when the pushing support moves to a preset position, the limiting rods positioned around the pushing support extend to preset positions simultaneously under the control of the control module, and the pushing support is limited.
According to a preferred embodiment of the invention, the support is arranged on the base in a 180 ° rotatable manner, so that a reverse adjustment of the support is achieved.
According to a preferred embodiment of the invention, the diameter of the suction cup is 6-7 times the width of the annular rubber ring.
According to a preferred embodiment of the present invention, the rocker is spaced from the support rod by a predetermined distance, a ring of spring is disposed between the support plate and the rocker in an annular direction, one end of the spring is connected to the lower surface of the support rod, and the other end of the spring is connected to the rocker.
According to a preferred embodiment of the present invention, the supporting mechanism includes a supporting plate rotatably hinged to the rocker through a hinge ball, and a plurality of suction rings are arranged around the periphery of the supporting plate, each suction ring includes an annular rubber ring and a suction cup connected to the inside of the annular rubber ring, the suction cup is bowl-shaped, a suction port is formed in the suction cup, the suction port is connected to external air-extracting equipment, and the air-extracting equipment extracts air from the suction cup or inflates air into the suction cup under the control of the control unit.
According to a preferred embodiment of the present invention, displacement sensors are respectively disposed on the first jacking jack, the second jacking jack and the jacking jack, so as to perform real-time monitoring on the jacking/jacking displacement.
The invention at least comprises the following beneficial effects: the pushing equipment disclosed by the invention is high in pushing precision, can monitor in real time in the pushing/jacking process, can realize large-range pushing, and can realize adjustment of a pushing angle according to actual requirements in the pushing process so as to realize pushing of an inclination angle.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a high-precision walking jacking device according to the present invention;
fig. 2 is a schematic structural view of the support mechanism.
Fig. 3 is a schematic structural view of the suction ring.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning "at least one" or "one or more," i.e., that a quantity of one element may be one in one embodiment, while a quantity of another element may be plural in other embodiments, and the terms "a" and "an" should not be interpreted as limiting the quantity.
As shown in fig. 1, the high-precision walking pushing apparatus of the present invention comprises:
a support 1;
the jacking main body 2 is arranged on the support 1 through a plurality of first jacking jacks 3, the positions of the support 1 corresponding to the telescopic ends of the first jacking jacks 3 are sunken inwards to form a limiting groove 11 with a cambered surface, the telescopic ends of the first jacking jacks 3 are rotatably hinged with hinge balls 4, and the hinge balls 4 are rotatably arranged in the limiting groove 11 without falling off, so that the first jacking jacks 3 are connected with the support 1; the inclination angle of the jacking main body 2 is controlled by controlling the jacking degrees of different first jacking jacks 3;
the second jacking jacks 5 are arranged on the support 1 and are positioned at the top ends of the jacking main bodies 2, wherein the top ends of the second jacking jacks 5 are vertically provided with top plates 6, slide rails are arranged on the surfaces of the top plates 6, the second jacking jacks are distributed linearly, and the slide rails on the top plates are also distributed linearly;
a plurality of pushing jacks 7 respectively arranged at the front end and the rear end of the pushing body 2;
displacement sensors are respectively arranged on the first jacking jack 3, the second jacking jack 5 and the jacking jack 7 so as to monitor jacking displacement of the first jacking jack, the second jacking jack and the jacking jack in real time;
and the control unit is respectively connected with the first jacking jack 3, the second jacking jack 5 and the pushing jack 7 in a control mode and controls the extension or retraction, and the extension amount or retraction amount of the first jacking jack 3, the second jacking jack 5 and the pushing jack 7.
And the third jacking devices 8 are arranged on the support 1, and the third jacking devices 8 are respectively positioned at the front end and the rear end of the jacking main body 2.
The third jacking device 8 comprises a third jacking jack 81, a supporting rod 82 and a warping plate 83, the supporting rod 82 is vertically arranged, the telescopic end of the third jacking jack 81 is vertically arranged upwards, the supporting rod 82 is positioned between the third jacking jack 81 and the jacking main body 2, the telescopic end of the third jacking jack 81 is hinged to one end of the warping plate 83, the warping plate 83 is hinged to the top end of the supporting rod 82, the other end of the warping plate 83 is horizontally provided with a supporting mechanism 1011, the distance from the telescopic end of the third jacking jack 81 to one end of the supporting rod 82 is L1, the distance from the supporting rod 82 to the supporting mechanism 1011 is L2, and the distance from L1 to L2; the third jacking devices are distributed around the second jacking jack.
In the embodiment, during actual construction and use, the high-precision walking jacking equipment is arranged below the steel box girder to be pushed, the steel box girder is jacked up by lifting the third jacking device 8, the steel box girder is placed on the third jacking device 8 at the moment, then the third jacking device 8 is controlled to descend, the steel box girder falls back to the top plate 6 at the moment, and the steel box girder is pushed by the jacking jack 7. And the third jacking device 8 can be lowered to a lower state so as not to influence the jacking operation of the jacking jack 7. And in order to improve the pushing efficiency, the top plate is provided with a slide rail, and the steel box girder is placed on the slide rail, so that the pushing resistance is smaller, and the pushing smoothness is improved.
And in order to realize automatic construction, the control unit is used for controlling the extension or retraction, and the extension amount or retraction amount of the first jacking jack 3, the second jacking jack 5 and the jacking jack 7. The control unit can receive a manual input instruction to perform the control. And the pushing amount is intelligently controlled, so that the intelligent pushing device is more accurate compared with the traditional manual operation.
In addition, in consideration of increasing the jacking force of the third jacking device 8, the third jacking device 8 is not directly set as a common jacking jack, but is provided with a third jacking jack 81, a supporting rod 82 and a rocker 83, and by using the lever principle, the supporting rod 82 corresponds to a lever acting point, the rocker 83 corresponds to a lever, the distance from the telescopic end of the third jacking jack 81 to one end of the supporting rod 82 is L1, the distance from the supporting rod 82 to the supporting mechanism 1011 is L2, and when L1 is greater than L2, the third jacking jack 81 can tilt a larger jacking force F2 with a smaller initial force F1 according to the lever principle F1L 1 ═ F2L 2, so that the jacking efficiency is higher.
It is further described that when the steel box girder to be pushed is not pushed completely horizontally and needs to be pushed obliquely, the inclination angle of the pushing main body 2 can be realized by adjusting the jacking heights of the different first jacking jacks 3, so that the pushing angle of the pushing jack 7 can be adjusted. And work as when top pushes up main part 2 and takes place the slope, first jacking jack 3 flexible end with the extrusion stress who pushes up the connecting portion between the main part 2 also can change thereupon, works as the inclination that pushes up main part 2 is big more, first jacking jack 3 flexible end with push up extrusion stress between the main part 2 big more, the time of having a specified duration probably causes first jacking jack 3's flexible end breaks off, consequently in this application, first jacking jack 3's flexible end sets up to rotatable articulated ball 4, the setting that articulated ball 4 is rotatable and not dropped is in spacing inslot 11.
According to an embodiment of the present invention, in the high-precision walking pushing apparatus, as shown in fig. 2 and 3, the supporting mechanism 1011 includes a supporting plate 10 rotatably hinged to the rocker 83 via a hinge ball, and a plurality of suction rings 11 are arranged along a circle of the periphery of the supporting plate 10, each suction ring 11 includes an annular rubber ring 111 and a suction cup 112 connected to the inside of the annular rubber ring 111, the suction cup 112 is bowl-shaped, a suction port is formed on the suction cup 112, the suction port is connected to an external air extractor, and the air extractor extracts air from the suction cup 112 or inflates the air into the suction cup under the control of the control unit;
in the above embodiment, the supporting mechanism 1011 of the plurality of third jacking devices 8 simultaneously supports the steel box girder, and considering that the supporting mechanism 1011 can also change along with the angle while the rocker 83 rotates along the supporting rod 82, in order to maintain the level of the supporting mechanism 1011, in the supporting mechanism 1011, the supporting plate 10 is rotatably hinged to the rocker through a hinge ball, and the stabilizing effect is good, and only when the external force is large, that is, when the steel box girder is placed thereon, the supporting mechanism can rotate to adjust and adapt, so that the steel box girder placed thereon can be kept as horizontal as possible.
In order to improve the stability of the steel box girder in the jacking process and avoid the situation that the steel box girder moves on the slide rail before the supporting mechanism 1011 is not adjusted to be horizontal, a plurality of suction rings 11 are arranged along one circle of the periphery of the supporting plate 10, the control unit controls the air pumping device to pump air in the suction cups 112 so as to improve the stability of the steel box girder and prevent the steel box girder from sliding, and after the steel box girder is stable in horizontal state, the control unit controls the air pumping device to fill air in the suction cups 112 so as to realize contact connection.
According to an embodiment of the present invention, in the high-precision walking jacking apparatus, a maximum jacking height of the third jacking jack 8 is greater than a maximum jacking height of the second jacking jack 5.
According to an embodiment of the present invention, the high-precision walking pushing apparatus further includes a base 12, the support 1 is disposed on the base 12, the size of the support 1 is smaller than that of the base 12, and the support 12 is driven by a power mechanism to move along the length direction of the base 12;
a plurality of accommodating grooves 13 distributed at intervals are formed in the base 12 in an inwards sunken manner, the accommodating grooves 13 are positioned around the support 1, and a lifting limiting rod 9 is arranged in the accommodating grooves in a lifting manner;
when the pushing support 2 moves to a preset position, a plurality of limiting rods positioned around the pushing support 2 extend to preset positions simultaneously under the control of the control module, and the support is limited.
And sometimes treat the steel box girder distance that pushes away far away or near the time, inconvenient top pushes away, perhaps not in the top pushes away the within range, then can promote support 1 along base 12 back-and-forth movement to enlarge the top pushes away scope of whole top pushing equipment, when treating to remove to preset position, control gag lever post 9 along the holding tank oscilaltion to all limit whole top pushing support 1 in specific position, avoid its top to push away the process and take place to remove because of reaction force, in this top pushing equipment use, need not set up the reaction seat alone again, more convenient and practical.
According to an embodiment of the present invention, in the high-precision walking pushing apparatus, the support may be rotatably disposed on the base by 180 ° to realize a reverse adjustment of the support.
According to an embodiment of the present invention, in the high-precision walking incremental launching apparatus, a certain distance is provided between the wane 83 and the supporting rod 82, a ring of spring 14 is circumferentially arranged between the supporting plate 82 and the wane 83, one end of the spring 14 is connected to the lower surface of the supporting rod, and the other end of the spring 14 is connected to the wane.
In the above embodiment, in order to further maintain the level of the steel box girder, a ring of spring 14 is circumferentially arranged between the supporting plate 82 and the rocker 83, even if the supporting plate 10 in the supporting mechanism 1011 inclines in the early stage, the springs 14 in different positions will deform differently to adapt to the change of the external environment, which not only plays a good role in supporting, but also generates a rebound force after being compressed or stretched to pull the supporting plate 10 to return to the original level position together, and also helps the supporting plate 10 to return to the level position. The spring is a rigid spring.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. A high accuracy walking top pushes away equipment which characterized in that includes:
a support;
the jacking main body is arranged on the support through a plurality of first jacking jacks, the support is sunken in a position corresponding to the telescopic end of each first jacking jack to form a limiting groove of a cambered surface, the telescopic end of each first jacking jack is rotatably hinged with a hinged ball, and the hinged ball is rotatably arranged in the limiting groove without falling off, so that the first jacking jacks are connected with the support; controlling the inclination angle of the jacking main body by controlling the jacking degrees of different first jacking jacks;
the second jacking jacks are arranged on the support and positioned at the top ends of the jacking main bodies, top plates are vertically arranged at the top ends of the second jacking jacks, slide rails are arranged on the surfaces of the top plates, the second jacking jacks are distributed linearly, and the slide rails on the top plates are also distributed linearly;
the pushing jacks are respectively arranged at the front end and the rear end of the pushing main body;
displacement sensors are respectively arranged on the first jacking jack, the second jacking jack and the jacking jack so as to monitor jacking displacement of the first jacking jack, the second jacking jack and the jacking jack in real time;
and the control unit is respectively connected with the first jacking jack, the second jacking jack and the pushing jack in a control mode and controls the first jacking jack, the second jacking jack and the pushing jack to extend or retract.
2. The high accuracy walking pushing apparatus of claim 1, further comprising:
a plurality of third jacking devices which are arranged on the support and are respectively positioned at the front end and the rear end of the jacking main body,
the third jacking device comprises a third jacking jack, a supporting rod and a wane, the supporting rod is vertically arranged, the telescopic end of the third jacking jack is vertically arranged upwards, the supporting rod is positioned between the third jacking jack and the jacking main body, the telescopic end of the third jacking jack is hinged to one end of the wane, the wane is hinged to the top end of the supporting rod, the other end of the wane is horizontally provided with a supporting mechanism, the distance from the telescopic end of the third jacking jack to one end of the supporting rod is L1, the distance from the supporting rod to the supporting mechanism is L2, and L1 is larger than L2;
the third jacking devices are distributed around the second jacking jack.
3. The high-precision walking jacking device according to claim 2, wherein the maximum jacking height of the third jacking jack is greater than the maximum jacking height of the second jacking jack.
4. The high-precision walking pushing equipment as claimed in claim 1, further comprising a base, wherein the support is arranged on the base, the size of the support is smaller than that of the base, and the support can move along the length direction of the base under the driving of a power mechanism; the base is sunken to form a plurality of accommodating grooves distributed at intervals, the accommodating grooves are positioned around the support, and a liftable limiting rod is arranged in the accommodating grooves in a liftable manner;
when the pushing main body moves to a preset position, the limiting rods positioned around the pushing main body extend to preset positions simultaneously under the control of the control module, and the pushing main body is limited.
5. A high accuracy walking incremental launching device in accordance with claim 1, wherein said support is rotatably mounted on a base by 180 ° to allow for reverse adjustment of said support.
6. The high-precision walking pushing device according to claim 3, wherein said supporting mechanism comprises a supporting plate rotatably hinged to said rocker by a hinge ball, and a plurality of suction rings are arranged around the periphery of said supporting plate, said suction rings comprise an annular rubber ring and a suction cup connected to the inside of said annular rubber ring, said suction cup is in a bowl shape, said suction cup is provided with a suction port, said suction port is connected to an external air extractor, and said air extractor extracts air from said suction cup or inflates air into said suction cup under the control of said control unit.
7. The high-precision walking pushing device according to claim 6, wherein the diameter of said suction cup is 6-7 times the width of said annular rubber ring.
8. The high-precision walking pushing device according to claim 6, wherein a certain distance is provided between the wane and the support rod, a ring of spring is arranged between the support plate and the wane in an annular direction, one end of the spring is connected to the lower surface of the support rod, and the other end of the spring is connected to the wane.
9. The high-precision walking jacking device according to claim 3, wherein the first jacking jack, the second jacking jack and the jacking jack are respectively provided with a displacement sensor for real-time monitoring of jacking/jacking displacement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110049047.7A CN112942138B (en) | 2021-01-14 | 2021-01-14 | High-precision walking pushing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110049047.7A CN112942138B (en) | 2021-01-14 | 2021-01-14 | High-precision walking pushing equipment |
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| CN112942138A CN112942138A (en) | 2021-06-11 |
| CN112942138B true CN112942138B (en) | 2022-07-15 |
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| CN202110049047.7A Active CN112942138B (en) | 2021-01-14 | 2021-01-14 | High-precision walking pushing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116289631B (en) * | 2023-05-06 | 2023-08-11 | 合肥城建投资控股有限公司 | Step-by-step pushing construction device for steel box girder |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000282413A (en) * | 1999-03-31 | 2000-10-10 | Sumitomo Heavy Ind Ltd | Launching machine with deflection eliminator |
| CN201420240Y (en) * | 2009-05-07 | 2010-03-10 | 中铁四局集团第四工程有限公司 | Adjustable synchronous hydraulic support slideway |
| CN104030204A (en) * | 2014-06-05 | 2014-09-10 | 同济大学 | Walking type thrustor based on sliding friction |
| CN204780607U (en) * | 2015-05-14 | 2015-11-18 | 柳州泰姆预应力机械有限公司 | Stride thrustor |
| CN212000663U (en) * | 2020-04-14 | 2020-11-24 | 中冶建工集团有限公司 | Assembly self-supporting horizontal pushing device |
| CN111676834A (en) * | 2020-07-22 | 2020-09-18 | 中建八局第三建设有限公司 | Double-stroke adjustable walking type pushing device and pushing method |
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