CN212000661U - Bottom die trolley for matching short lines with prefabricated box girders - Google Patents
Bottom die trolley for matching short lines with prefabricated box girders Download PDFInfo
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- CN212000661U CN212000661U CN201922399502.7U CN201922399502U CN212000661U CN 212000661 U CN212000661 U CN 212000661U CN 201922399502 U CN201922399502 U CN 201922399502U CN 212000661 U CN212000661 U CN 212000661U
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- layer support
- support
- bottom die
- adjusting device
- stub
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Abstract
The utility model discloses a die block platform truck of prefabricated case roof beam of stub matching, including upper support, lower floor's support, adjusting device, jacking device and running gear. The two supports are superposed up and down, the volume is small, and the gravity center is low. The adjusting device is a telescopic device arranged along the horizontal direction, one end of the adjusting device is hinged with a hinged seat on the upper layer support, the other end of the adjusting device is hinged on the limiting column and is vertically limited, and the plurality of jacking devices are vertically connected to the upper layer support; the telescopic motion of the adjusting device can realize horizontal transverse movement of the upper-layer support relative to the lower-layer support and rotation around the limiting column on one side, the jacking device is used for jacking the matching beam, the vertical height or the inclination angle of the matching beam can be adjusted, the bottom die trolley can carry the matching beam to move longitudinally through the walking device, and the operation is simple.
Description
Technical Field
The utility model belongs to the stub matches prefabricated case roof beam field, specifically is a die block platform truck of stub matching prefabricated case roof beam.
Background
In the construction of matching the prefabricated section box girder by the short line, the bottom die trolley has the functions of stably moving the prefabricated section girder and the bottom die on the lower part of the prefabricated section girder from a prefabricating station to a matching station, and simultaneously adjusting the three-dimensional space position of the section to enable the section to be matched with the prefabricated section, so that the integral line type of the box girder is ensured.
The die block platform truck that uses commonly at present comprises three-layer support, can carry out the adjustment of three-dimensional spatial position to matching the roof beam, but this die block platform truck has a great deal of problem:
firstly, the size is large, the height of the three-layer support structure is high, so that the gravity center of a section beam borne by the three-layer support structure is too high, potential safety hazards of overturning easily exist due to the fact that the gravity center is too high in the adjustment process of a matched beam, all operation heights in the whole construction process need to be increased, and all devices used in the construction process, including the height of a gantry crane, the height of a canopy, the height of a beam lifter and the like, need to be correspondingly increased; secondly, the three layers of structures of the bottom die trolley need to be mutually adjusted, the structure is complex, and the adjusting time is long; and then its production cost is high due to its large volume and complex structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a small, the focus is low, the low-cost die block platform truck of easy operation safety.
The utility model provides a bottom die trolley of prefabricated case roof beam of this kind of short line matching, including upper support, lower floor's support, adjusting device, jacking device and running gear, upper support and lower floor's support superpose from top to bottom, running gear connects in the horizontal both sides bottom of lower floor's support, the intermediate position department at both ends is connected with vertical spacing post around the lower floor's support, spacing post passes upper support and makes two supports vertical spacing through the fastener, adjusting device is the retractable device who arranges along the horizontal direction, its one end is articulated with the articulated seat on the upper support, the other end articulates on spacing post and vertical spacing, a plurality of jacking devices connect on upper support along vertical; the telescopic motion of the adjusting device can realize the horizontal transverse movement of the upper-layer support relative to the lower-layer support and the rotation around the limiting column on one side, the jacking device is used for jacking the matching beam, so that the vertical height or the inclination angle of the matching beam can be adjusted as required, and the longitudinal movement of the matching beam carried by the bottom die trolley can be realized through the walking device.
In an embodiment of the above technical solution, the upper layer bracket and the lower layer bracket are both of a square frame structure.
In an embodiment of the above technical solution, the upper bracket has a transverse slot therein, and the adjusting device is installed in the transverse slot.
In an embodiment of the above technical scheme, the upper support is a square frame welded by an upper cross beam, an upper longitudinal beam and an upper reinforcing beam, the upper cross beam comprises channel steel, a middle connecting plate and end connecting plates, the two channel steel are symmetrically arranged with an opening back to back in a clearance manner, the middle connecting plate is welded on the bottom surface of the middle position of the two channel steel in the length direction, the two end connecting plates are symmetrically welded at two ends of the bottom surface of the two channel steel, and a waist round hole is formed in the middle connecting plate and extends along the transverse direction of the upper cross.
In one embodiment of the above technical solution, the jacking devices have four sets, and are symmetrically fixed on the end connecting plate.
In one embodiment of the above technical solution, the lower layer bracket is a square frame welded by a lower cross beam, a lower longitudinal beam and a lower reinforcing beam, end supporting plates corresponding to the end connecting plates are welded on top surfaces of four corners of the lower layer bracket, and a layer of sliding assistance plate is attached to an upper surface of each end supporting plate.
In an embodiment of the above technical solution, the limiting column is connected to the middle position of the lower cross beams at two sides of the lower bracket, and the upper portion of the limiting column penetrates through a waist circular hole on the middle connecting plate.
In an embodiment of the above technical scheme, the spacing post is from up being the spacing section in fixed section, the spacing section in middle part, articulated section and the spacing section in upper portion down in proper order, the fixed section with the bottom end rail welding, the spacing section in middle part passes be connected with upper strata support limit nut behind the middle part connecting plate, be connected with the top nut in the spacing section in upper portion.
In an embodiment of the above technical scheme, the adjusting device is an oil cylinder with hinge rings at two ends, wherein the hinge ring at one end is hinged to a hinge seat in a transverse groove in the upper support through a pin shaft, and the hinge ring at the other end is sleeved on a hinge section of the limiting column and then limited through a top nut, so that the oil cylinder is prevented from vertically swinging.
The bottom die trolley adopts a two-layer support structure, and can effectively reduce the height of the gravity center of the bottom die trolley, thereby reducing the gravity center of the section beam borne by the bottom die trolley, avoiding the potential safety hazard of overturning of the matching beam caused by the overhigh gravity center in the position adjustment trolley, and reducing all operation heights in the whole construction process. The two-layer support structure not only simplifies the structure and reduces the cost, but also only needs to adjust the position of the upper support, and can realize the plane position adjustment of the section beam: the upper-layer support is driven to horizontally move along the lower-layer support and/or rotate in the horizontal plane around the limiting column on one side by independently controlling the telescopic motion of the two adjusting devices, and the operation is simple and efficient. The jacking device can realize the adjustment of the vertical height and the inclination angle of the matching beam, and the walking device drives the whole bottom die trolley and the matching beam to move longitudinally, so that the adjustment requirements of the matching beam in six directions are met.
Drawings
Fig. 1 is a schematic front view of an embodiment of the present invention.
Fig. 2 is a schematic top view of fig. 1.
Fig. 3 is a bottom view of fig. 1 (running gear not shown).
Fig. 4 is a side view of fig. 1.
Fig. 5 is a side view of the upper support of fig. 1.
Fig. 6 is a schematic view of the lower bracket and the limiting column in fig. 1.
Fig. 7 is a side view of fig. 6.
Fig. 8 is an enlarged schematic view of a portion a in fig. 1.
Detailed Description
As shown in fig. 1, the bottom die trolley for matching the stub with the prefabricated box girder disclosed in this embodiment includes an upper support 1, a lower support 2, a limiting column 3, an adjusting device 4, a jacking device 5, and a traveling device 6.
The upper layer bracket 1 and the lower layer bracket 2 are square frames with the same plane size.
As can be seen from fig. 1, 2 and 5, the upper bracket 1 is welded into a square frame by an upper cross beam 11, an upper longitudinal beam 12 and an upper reinforcing beam 13.
The entablature 11 includes channel-section steel 111, middle part connecting plate 112 and end connection board 113, and two channel-section steels 111 use the opening to carry on the back gapped symmetrical arrangement, make and form horizontal groove between two channel-section steels, and middle part connecting plate 112 welds in the bottom surface of two channel-section steel length direction intermediate positions, and both ends connecting plate 113 symmetry welds in the bottom surface both ends of two channel-section steels.
The upper longitudinal beam 12 is made of H-shaped steel, and the upper reinforcing beam 13 is made of backrest double-spliced angle steel.
The middle position of the middle connecting plate 112 is provided with a waist circular hole.
As can be seen from fig. 1, 3, 6 and 7, the lower bracket 2 is a directional frame formed by welding a lower cross beam 21, a lower longitudinal beam 22 and a lower reinforcing beam 23.
The lower cross member 21 includes H-shaped steel 211 welded to each other, end plates 212 on the lower sides of both ends thereof, and end plates 213 on the upper sides of both ends thereof.
Like the upper bracket, the lower beam 21 is made of H-shaped steel, and the lower reinforcing beam 23 is made of double-spliced angle steel.
It can be seen from combining fig. 1, fig. 3, fig. 6 to fig. 8 that spacing post 3 is from up being fixed section, the spacing section in middle part, articulated section and the spacing section in upper portion in proper order down, and the fixed section welds in the round hole of bottom end rail intermediate position department, and the spacing section in middle part is connected with upper strata support limit nut 31 after passing middle part connecting plate 112, is connected with top nut 32 on the spacing section in upper portion. After the whole bottom die trolley is adjusted in place, the limiting nut 31 of the upper layer support is screwed down, so that the limiting column 3 and the upper layer support 1 are relatively fixed.
After the lower layer bracket 2, the upper layer bracket 1 and the limiting column 3 are assembled, the adjusting device 4 can be installed.
As can be seen from fig. 1, 2 and 8, the adjusting device 4 is horizontally arranged in the gap between the two channel beams 11 on the upper layer bracket 1. An articulated lug seat JJZ is arranged at a connecting plate 113 at one end near the end of a transverse groove in the upper cross beam 11, a bottom plate of the articulated lug seat is welded on a web plate of the two channel steels 111, and the lug plate faces the direction of the limiting column 3.
The adjusting device 4 adopts an oil cylinder with hinged rings at two ends, the hinged ring at the end of the cylinder body is arranged between two lug plates of the hinged lug seat JJZ and is hinged through a pin shaft along the horizontal direction, and the hinged ring at the end of the piston is sleeved on the hinged section of the limiting column 3 and then a top nut is screwed down to prevent the oil cylinder from swinging vertically.
Adjusting device 4 is used for realizing the relative horizontal migration and the rotation of lower floor's support 2 of upper support 1, and when upper support 1 rotated, one of them spacing post 3 was its pivot.
In order to reduce the friction force when the upper layer bracket 1 moves and rotates, the top surfaces of end supporting plates at four corners of the top surface of the lower layer bracket are respectively adhered with a layer of sliding assisting plate which is made of a stainless steel plate or polytetrafluoroethylene material.
As shown in fig. 1, two ends of the bottom surface of the lower beam of the lower support 2 are symmetrically connected with traveling devices 5, and the bottom die trolley can longitudinally move along the matching beam. The running gear adopts the existing structure.
As shown in fig. 2, four sets of jacking devices 5 are respectively fixed on the end connecting plates 213 at the four corners of the upper bracket 1 along the vertical symmetry, and the matching beams on the upper bracket are jacked up by the jacking devices. When the jacking device has different jacking heights, the inclination angle adjustment of the matched beam can be realized. The vertical height that jacking device can not only adjust the matching roof beam promptly, can also adjust the inclination of matching roof beam.
The working principle of the embodiment is as follows:
the matched beam is jacked up by the jacking device and then borne by the bottom die trolley, the bottom die trolley is moved to a specified position by the traveling device, the translation distance and the rotation angle of the upper layer support relative to the lower layer support are adjusted by the extension of the piston rods of the two oil cylinders, the jacking device descends after the adjustment is in place, and the bottom die trolley is unloaded. And pouring concrete, after the condition that the matched beam is removed is achieved, jacking by the jacking device, bearing by the bottom die trolley, moving out the matched beam by the traveling device, changing the elongation of the adjusting device, conveying the matched beam by the girder lifting machine, descending by the jacking device of the bottom die trolley, returning the adjusting device, and repeating the process.
The principle of the telescopic upper bracket translation of the oil cylinder is as follows: because the limiting column is inserted in the transverse oval hole in the middle connecting plate on the bottom surface of the upper layer support, and the limiting column is vertically fixed on the lower layer support and cannot move, when the oil cylinder stretches out and draws back, the cylinder body end of the oil cylinder can push the upper layer support to move left or right along the oval hole through the hinge seat.
The principle that the telescopic oil cylinder realizes that the upper layer support rotates around the limiting column is as follows: according to the position direction needing to be adjusted, the oil cylinder needing to work is determined, the oil cylinder on the other side does not work, the upper layer support on the working oil cylinder side moves along the waist circular hole in the middle connecting plate, and therefore the upper layer support rotates around the limiting column connected with the oil cylinder on the non-working side.
This die block platform truck adopts channel-section steel double pin as the entablature with the upper support, and the channel-section steel section bar has better straightness accuracy and atress performance, and the interval between its two channel-section steels forms naturally as adjusting device's mounting groove, need not processing, and adjusts the dress and be fixed in the mounting groove, and the translation and the rotational motion that can make its realization upper support are more stable more laborsaving.
When matching beams to, i.e. matching prefabricated section beams to, ensure the overall line-type of the box beam, the following different situations may occur, the corresponding operations of which are as follows:
a. only translation of the upper support is required
The jacking device jacks up the matching beam and then is borne by the bottom die trolley, then the bottom die trolley is moved to a specified position through the traveling device, and simultaneously the piston rods of the two oil cylinders extend out/retract to the same length, so that the upper-layer support 1 slides and translates relative to the lower-layer support.
b. Only the upper support is required to rotate
The jacking device jacks up the matching beam and then is borne by the bottom die trolley, then the bottom die trolley is moved to an appointed position through the traveling device, the oil cylinder on one side is determined to work according to the rotation direction, the oil cylinder on the other side does not work, and the upper support rotates around the limiting column connected with the oil cylinder on the non-working side.
c. Require translation and rotation of the upper support
The jacking device jacks the matching beam and then is borne by the bottom die trolley, then the bottom die trolley is moved to a specified position through the traveling device, and the operation is firstly carried out according to the situation a, and then the operation is carried out according to the situation b.
The bottom die trolley adopts a two-layer support structure, and can effectively reduce the height of the gravity center of the bottom die trolley, thereby reducing the gravity center of the section beam borne by the bottom die trolley, avoiding the potential safety hazard of overturning of the matching beam caused by the overhigh gravity center in the position adjustment trolley, and reducing all operation heights in the whole construction process. The two-layer support structure not only simplifies the structure and reduces the cost, but also only needs to adjust the position of the upper support, and can realize the plane position adjustment of the section beam: the upper-layer support is driven to horizontally move along the lower-layer support and/or rotate in the horizontal plane around the limiting column on one side by independently controlling the telescopic motion of the two adjusting devices, and the operation is simple and efficient. The jacking device can realize the adjustment of the vertical height and the inclination angle of the matching beam, and the walking device drives the whole bottom die trolley and the matching beam to move longitudinally, so that the adjustment requirements of the matching beam in six directions are met.
Claims (9)
1. The utility model provides a die block platform truck of prefabricated case roof beam of stub matching which characterized in that: the lifting device comprises an upper layer support, a lower layer support, an adjusting device, a lifting device and a walking device, wherein the upper layer support and the lower layer support are vertically superposed, the walking device is connected to the bottoms of the two transverse sides of the lower layer support, the middle positions of the front end and the rear end of the lower layer support are connected with vertical limiting columns, the limiting columns penetrate through the upper layer support to enable the two supports to be vertically limited through fasteners, the adjusting device is a telescopic device which is horizontally arranged, one end of the adjusting device is hinged with a hinged seat on the upper layer support, the other end of the adjusting device is hinged on the limiting columns and vertically limited, and the plurality of lifting devices are vertically connected to the upper layer; the telescopic motion of the adjusting device can realize the horizontal transverse movement of the upper-layer support relative to the lower-layer support and the rotation around the limiting column on one side, the jacking device is used for jacking the matching beam, so that the vertical height or the inclination angle of the matching beam can be adjusted as required, and the longitudinal movement of the matching beam carried by the bottom die trolley can be realized through the walking device.
2. The bottom die trolley for the stub-matched precast box girder according to claim 1, wherein: the upper layer support and the lower layer support are both of square frame structures.
3. The bottom die trolley for the stub-matched precast box girder according to claim 2, wherein: and a transverse groove is formed in the upper layer bracket, and the adjusting device is arranged in the transverse groove.
4. The bottom die trolley for the stub-matched precast box girder according to claim 2, wherein: the upper support is welded into a square frame by the upper cross beam, the upper longitudinal beam and the upper reinforcing beam, the upper cross beam comprises channel steel, a middle connecting plate and end connecting plates, the two channel steel are arranged symmetrically with the opening back to the back, the middle connecting plate is welded on the bottom surface of the middle position of the two channel steel in the length direction, the two end connecting plates are symmetrically welded at the two ends of the bottom surface of the two channel steel, and a waist round hole is formed in the middle connecting plate and is transverse to the upper cross beam.
5. The bottom die trolley for the stub-matched precast box girder according to claim 4, wherein: the jacking devices are four sets and symmetrically fixed on the end connecting plate.
6. The bottom die trolley for the stub-matched precast box girder according to claim 2, wherein: the lower layer bracket is a square frame welded by a lower cross beam, a lower longitudinal beam and a lower reinforcing beam, end supporting plates corresponding to the end connecting plates are welded on the top surfaces of four corners of the lower layer bracket, and a layer of sliding assisting plate is attached to the upper surfaces of the end supporting plates.
7. The bottom die trolley for the stub-matched precast box girder according to claim 4, wherein: the limiting columns are connected to the middle positions of the lower cross beams on the two sides of the lower-layer support, and the upper portions of the limiting columns penetrate through the waist circular holes in the middle connecting plate.
8. The bottom die trolley for the stub-matched precast box girder according to claim 7, wherein: spacing post is from up being the spacing section in proper order in fixed section, the spacing section in middle part, articulated section and the spacing section in upper portion down, the fixed section with the bottom end rail welding, the spacing section in middle part passes be connected with upper strata support limit nut behind the middle part connecting plate, be connected with the top nut in the spacing section in upper portion.
9. The bottom die trolley for the stub-matched precast box girder according to claim 8, wherein: the adjusting device is an oil cylinder with hinge rings at two ends, the hinge ring at one end is hinged with the hinge seat in the transverse groove in the upper support through a pin shaft, and the hinge ring at the other end is sleeved on the hinge section of the limiting column and then limited through a top nut, so that the oil cylinder is prevented from vertically swinging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922399502.7U CN212000661U (en) | 2019-12-27 | 2019-12-27 | Bottom die trolley for matching short lines with prefabricated box girders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922399502.7U CN212000661U (en) | 2019-12-27 | 2019-12-27 | Bottom die trolley for matching short lines with prefabricated box girders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212000661U true CN212000661U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922399502.7U Active CN212000661U (en) | 2019-12-27 | 2019-12-27 | Bottom die trolley for matching short lines with prefabricated box girders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212000661U (en) |
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- 2019-12-27 CN CN201922399502.7U patent/CN212000661U/en active Active
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Address after: Hunan business culture and Technology Industrial Park, Zhongfang County, Huaihua City, Hunan Province Patentee after: Hunan Wuxin Intelligent Technology Co.,Ltd. Address before: Hunan business culture and Technology Industrial Park, Zhongfang County, Huaihua City, Hunan Province Patentee before: Hunan China Railway Wuxin Steel Mould Co.,Ltd. |