CN212743399U

CN212743399U - Setting-out positioner for spherical tank pre-welded part backing plate

Info

Publication number: CN212743399U
Application number: CN202022021147.2U
Authority: CN
Inventors: 陈桂喜; 李东洋; 韩泽; 张树山; 赵治军
Original assignee: China Chemical Engineering Thirteenth Construction Co ltd
Current assignee: China Chemical Engineering Thirteenth Construction Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-03-19
Anticipated expiration: 2030-09-16

Abstract

The utility model relates to the technical field of a lofting and positioning auxiliary device for a prewelded part backing plate of a non-reference area of an upper polar plate and a lower polar plate of a spherical tank, in particular to a lofting and positioning device for the prewelded part backing plate of the spherical tank, which comprises a bracket base, a heightening rod, a heightening pipe, an azimuth disc, four groups of adjusting devices, an adjusting ball, a first jackscrew and a second jackscrew, wherein the bracket base comprises a central base and four groups of guide rail bases, pull rod sliders are arranged on the four groups of guide rail bases in a sliding way, the four groups of adjusting devices respectively comprise a coarse adjusting device and a fine adjusting device, a fixing groove for fixing a digital display compass is arranged at the top end of the azimuth disc, a distance meter tray is rotatably arranged at one end of the azimuth disc, a third jackscrew for fixing the distance meter tray is arranged on the azimuth disc, the construction method is simple, manual swinging of the spherical tank is not needed, the frequency of activity of constructors on, the efficiency and the factor of safety of work progress are improved, improve the construction precision of laying-out.

Description

Setting-out positioner for spherical tank pre-welded part backing plate

Technical Field

The utility model relates to a polar plate does not have the technical field of reference regional weldment backing plate lofting location auxiliary device on spherical tank, especially relates to a spherical tank weldment backing plate lofting locator in advance.

Background

The spherical tank is a large-capacity, pressure-bearing and efficient storage container, and is widely applied to the chemical industry by virtue of superior service performance, but is used as special equipment, the structure is not correct, the construction process is special, and great danger exists in the construction process, particularly in the lofting and positioning process of an upper polar plate pre-welded part cushion plate and a lower polar plate pre-welded part cushion plate on the outer surface of a spherical shell, constructors need to frequently reciprocate on the surface of the spherical shell, most arc-shaped clamping tools on the surface of the spherical shell are also detached, the safety belt hook positions of the constructors are few, and therefore great potential safety hazards exist, and the significance of researching a new construction tool for solving the safety problem in the lofting process of the spherical tank is great.

In present spherical tank installation engineering, the lofting of spherical tank prefabricated weldment mainly adopts the manual lofting of tradition, and main operating procedure is to place the square at manhole department and find the manhole center, holds between the fingers lofting end of a thread or hand power tape measure through constructor hand and carries out the lofting operation, and the lofting precision deviation is too big, and the lofting scope is little, operates inconveniently. Especially when polar plate lofting under the spherical tank, the lofting degree of difficulty is more difficult, seriously influences the engineering progress, increases construction cost.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a construction method is simple, need not the manual work and has swung the circle, has reduced the frequency that constructor moved about on the spherical shell, can greatly reduce the cost expenditure, improves the efficiency and the factor of safety of work progress, improves the spherical tank weldment backing plate laying-out locator that welds in advance of laying-out construction precision.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a lofting positioner for a spherical tank pre-welded part base plate comprises a support base, a height adjusting rod, a height adjusting pipe, an azimuth disc and four groups of adjusting devices, wherein the support base comprises a central base, guide rail bases are arranged at the front end, the rear end, the left end and the right end of the central base, pull rod sliders are arranged on the four groups of guide rail bases in a sliding mode, first jackscrews for fixing the pull rod sliders are arranged on the pull rod sliders, an adjusting ball is arranged in the middle of the central base, the bottom end of the height adjusting pipe penetrates through the adjusting ball, the bottom end of the height adjusting rod penetrates through the height adjusting pipe, the top end of the height adjusting rod is connected with the azimuth disc, second jackscrews for fixing the height adjusting rod are arranged on the height adjusting pipe, the four groups of adjusting devices respectively comprise a coarse adjusting device and a fine adjusting device, one end of the coarse adjusting device is hinged to the pull rod sliders, the other end of the coarse adjusting device is connected with the fine adjusting device, the one end that the coarse adjusting device was kept away from to fine setting device is articulated with the top of heightening the pole, the top of azimuth disc is provided with the fixed slot that is used for fixed digital display compass, the rotatable distancer tray that is provided with of one end of azimuth disc to be provided with the third jackscrew that carries out the fixing to the distancer tray on the azimuth disc.

Preferably, the height adjusting rod is rotatably connected with the azimuth disc, and an azimuth disc fixing cap for fixing the azimuth disc is arranged at the top end of the azimuth disc.

Preferably, the coarse adjustment device comprises a first coarse adjustment pull rod and a second coarse adjustment pull rod which are mutually nested, and a fourth jackscrew for limiting the first coarse adjustment pull rod and the second coarse adjustment pull rod.

Preferably, the bottom end of the guide rail base is provided with a base positioning sliding block in a sliding manner, and a positioning jackscrew for fixing the base positioning sliding block is arranged on the base positioning sliding block.

Preferably, the top of the height adjusting rod is provided with a circular tray, the tops of the four groups of fine adjustment devices are connected with movable pieces, and the four groups of movable pieces are hinged to the outer side of the circular tray.

Preferably, an elastic fixing piece for fixing the digital display compass is arranged in the fixing groove.

Preferably, the fine tuning device comprises a fixed frame and two sets of fine tuning screws, two sets of opposite threaded holes are formed in the fixed frame, one ends of the two sets of fine tuning screws respectively penetrate through the two sets of threaded holes in a threaded mode, and the other ends of the two sets of fine tuning screws are respectively connected with the first coarse tuning pull rod and the movable plate.

(III) advantageous effects

Compared with the prior art, the utility model provides a spherical tank weldment backing plate lofting locator in advance possesses following beneficial effect:

1. the lofting positioner for the spherical tank pre-welded part base plate adopts a mechanical structure to combine a laser range finder and a digital display compass to loft and position the position of the spherical tank pre-welded part base plate, and overcomes the defect of a single manual circle swinging mode of the traditional lofting of the spherical tank; the digital display compass on the azimuth disc is adopted to determine the azimuth, the laser range finder is finely adjusted and fixed to determine the position, and the accurate positioning of the prefabricated weldment base plate around the manhole of the spherical tank is realized, so that the construction method completely depending on the machine to perform lofting positioning is beneficial to improving the lofting efficiency and precision of the prefabricated weldment base plate of the spherical tank, and the construction progress can be accelerated;

2. the base structure fixed by the spherical tank manhole is adopted, the fixed position is stable, the reference position is easy to find, and the fixing mode is stable. The operation position of constructors is fixed, frequent movement is not needed, the risk coefficient of construction of the constructors is effectively reduced, most of materials adopted by a main structure are higher in specific strength coefficient, the stability of the digital compass is improved, the influence of the environment on the precision of the digital compass is reduced, the digital compass is convenient to disassemble due to the fact that a symmetrical spring plate structure is arranged in the groove of the azimuth disc, in the prior art, a sample plate is mainly positioned in a manual circle swinging mode, the upper and lower polar plates of each 1000m3 spherical tank require three manual work periods for lofting, all references are positioned through manual measurement, the error is larger, the construction procedure for lofting of the spherical tank pre-welded part is redefined by the digital compass, the cost price is far lower than one riveting work day, and the construction cost, the labor cost, the progress cost, the quality cost and the like are saved;

3. simple structure, practical value, efficiency of construction are high, and stability is good, can satisfy demands such as cost saving, quality control, construction period, construction safety, efficiency of construction in the work progress in the laying-out construction of spherical tank weldment in advance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the connection structure of the height adjusting rod, the circular tray and the central base;

fig. 3 is a schematic structural view of the fine adjustment device of the present invention;

FIG. 4 is a schematic view of the lofting principle of the present invention;

FIG. 5 is a partially enlarged schematic view of the lofting principle of the present invention;

in the drawings, the reference numbers: 1. a height adjusting rod; 2. heightening the pipe; 3. an azimuth disc; 4. a central base; 5. A guide rail base; 6. a pull rod slider; 7. a first jackscrew; 8. adjusting the ball; 9. a second jackscrew; 10. a fine adjustment device; 11. fixing grooves; 12. a rangefinder tray; 13. a third jackscrew; 14. An azimuth plate fixing cap; 15. a first coarse adjustment pull rod; 16. a second coarse adjustment pull rod; 17. a fourth jackscrew; 18. a base positioning slide block; 19. positioning a jackscrew; 20. a circular tray; 21. a movable plate; 22. an elastic fixing sheet; 23. a fixing frame; 24. and (5) finely adjusting the screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the setting-out positioner for the spherical tank pre-welded part backing plate of the present invention comprises a support base, a height-adjusting rod 1, a height-adjusting pipe 2, an azimuth disc 3 and four sets of adjusting devices, wherein the support base comprises a central base 4, guide rail bases 5 are respectively arranged at the front end, the rear end, the left end and the right end of the central base 4, pull rod sliders 6 are respectively arranged on the four sets of guide rail bases 5 in a sliding manner, first jackscrews 7 for fixing the pull rod sliders 6 are arranged on the pull rod sliders 6, an adjusting ball 8 is arranged in the middle of the central base 4, the adjusting ball 8 is arranged at the bottom end of the height-adjusting pipe, the height-adjusting pipe is arranged at the bottom end of the height-adjusting rod 1, the top end of the height-adjusting rod 1 is connected with the azimuth disc 3, the height-adjusting rod 1 is rotatably connected with the azimuth disc 3, and an azimuth disc fixing cap 14 for fixing the azimuth disc 3 is arranged at the top end of the azimuth disc 3, second jackscrews 9 for fixing the height adjusting rod 1 are arranged on the height adjusting pipe, each of the four groups of adjusting devices comprises a coarse adjusting device and a fine adjusting device 10, one end of the coarse adjusting device is hinged with the pull rod slide block 6, the other end of the coarse adjusting device is connected with the fine adjusting device 10, one end of the fine adjusting device 10 far away from the coarse adjusting device is hinged with the top of the height adjusting rod 1, a round tray 20 is arranged at the top of the height adjusting rod 1, movable plates 21 are connected with the tops of the four groups of fine adjusting devices 10, the four groups of movable plates 21 are hinged with the outer side of the round tray 20, the hinging of the adjusting device and the height adjusting rod 1 is realized through the matching of the movable plates 21 and the round tray 20, the coarse adjusting device comprises a first coarse adjusting pull rod 15 and a second coarse adjusting pull rod 16 which are mutually nested, and a fourth jackscrew 17 for limiting the first coarse adjusting pull rod 15 and the second coarse adjusting pull, the digital display compass is characterized in that rough adjustment is realized by adjusting the overall effective length of a first rough adjustment pull rod 15 and a second rough adjustment pull rod 16, then the first rough adjustment pull rod 15 and the second rough adjustment pull rod 16 are locked by a fourth jackscrew 17, the fine adjustment device 10 comprises a fixed frame 23 and two groups of fine adjustment screw rods 24, two groups of opposite threaded holes are arranged on the fixed frame 23, one ends of the two groups of fine adjustment screw rods 24 are respectively screwed and penetrated through the two groups of threaded holes, the other ends of the two groups of fine adjustment screw rods 24 are respectively connected with the first rough adjustment pull rod 15 and a movable plate 21, the overall length of the fixed frame 23 and the two groups of fine adjustment screw rods 24 is adjusted by rotating the fixed frame 23 to realize fine adjustment, the thread rotation of the two groups of fine adjustment screw rods 24 is opposite, a fixed groove 11 for fixing a digital display compass is arranged at the, the digital display compass is clamped and fixed through the elastic fixing piece 22, the distance measuring instrument tray 12 is rotatably arranged at one end of the azimuth plate 3, and the third jackscrew 13 for fixing the distance measuring instrument tray 12 is arranged on the azimuth plate 3.

A base positioning sliding block 18 is arranged at the bottom end of the guide rail base 5 in a sliding manner, and a positioning jackscrew 19 for fixing the base positioning sliding block 18 is arranged on the base positioning sliding block 18; the bracket base is fixed through the positioning slide block and the positioning jackscrew 19.

In use, referring to the attached

drawings

4 and 5 of the specification, a guide rail base 5 is placed at a manhole of a spherical tank, a base positioning slide block 18 is adjusted to enable a bolt hole protruding out of the manhole below the base positioning slide block 18 to be matched, the base positioning slide block 18 is fastened through a positioning jackscrew 19, so that the fixing of a bracket base is completed, the height of an heightening rod 1 is adjusted, the heightening rod 1 is fixed through a second jackscrew 9, data of H1 and H4 are measured, then an orientation disc 3 is leveled, a laser range finder is placed on a range finder tray 12, an air hole on the laser range finder is observed, the position of a pull rod slide block 6 on the guide rail base 5 is adjusted, the pull rod slide block 6 is fixed through a first jackscrew 7, the level of the orientation disc 3 is adjusted through a coarse adjusting device, then the level of the orientation disc 3 is leveled through a fine adjusting device 10, a lofting diameter X is calculated,

slowly rotating the distance measuring instrument tray 12 until the reading on the laser distance measuring instrument is equal to the required lofting diameter value x, fixing the distance measuring instrument tray 12 through a third jackscrew 13, placing a digital display compass in the fixing groove 11, adjusting the direction of the azimuth disk 3 to read the screen data of the digital display compass to be consistent with the data on the drawing, and marking the red point position of the laser distance measuring instrument as the lofting position after the azimuth is adjusted; the mechanical structure is combined with a laser range finder and a digital display compass to loft and position the position of the spherical tank prefabricated weldment base plate, so that the traditional single manual cycloning mode of lofting of the spherical tank is overcome; the digital display compass on the azimuth plate 3 is adopted to determine the azimuth, the laser range finder is finely adjusted and fixed to determine the position, the accurate positioning of the prefabricated weldment base plate around the spherical tank manhole is realized, the improvement of the lofting efficiency of the prefabricated weldment base plate of the spherical tank is facilitated, the construction progress can be accelerated, the construction cost is saved, and the spherical tank positioning device is worthy of popularization and use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lofting positioner for a spherical tank pre-welded part base plate is characterized by comprising a support base, a height adjusting rod (1), a height adjusting pipe (2), an azimuth disc (3) and four groups of adjusting devices, wherein the support base comprises a central base (4), guide rail bases (5) are arranged at the front end, the rear end, the left end and the right end of the central base (4), pull rod sliding blocks (6) are arranged on the four groups of guide rail bases (5) in a sliding manner, first jackscrews (7) used for fixing the pull rod sliding blocks (6) are arranged on the pull rod sliding blocks (6), an adjusting ball (8) is arranged in the middle of the central base (4), the adjusting ball (8) penetrates through the bottom end of the height adjusting pipe (1), the top end of the height adjusting rod (1) is connected with the azimuth disc (3), and second jackscrews (9) used for fixing the height adjusting rod (1) are arranged on the height adjusting pipe, the four adjusting devices comprise a coarse adjusting device and a fine adjusting device (10), one end of the coarse adjusting device is hinged to a pull rod sliding block (6), the other end of the coarse adjusting device is connected with the fine adjusting device (10), one end, far away from the coarse adjusting device, of the fine adjusting device (10) is hinged to the top of a height adjusting rod (1), a fixing groove (11) for fixing a digital display compass is formed in the top end of an azimuth disc (3), a range finder tray (12) is rotatably arranged at one end of the azimuth disc (3), and a third jackscrew (13) for fixing the range finder tray (12) is arranged on the azimuth disc (3).

2. The setting-out positioner for the bearing plates of the ball pot prewelders according to the claim 1, characterized in that the heightening rod (1) is rotatably connected with the azimuth plate (3), and an azimuth plate fixing cap (14) for fixing the azimuth plate (3) is arranged at the top end of the azimuth plate (3).

3. The spherical tank pre-weldment tie plate lofting positioner according to claim 2, wherein the gross adjustment means comprises a first gross pull rod (15) and a second gross pull rod (16) nested within each other and a fourth jackscrew (17) that limits the first gross pull rod (15) and the second gross pull rod (16).

4. The setting-out positioner for the base plates of the spherical tank pre-welded parts according to claim 3, characterized in that the bottom end of the guide rail base (5) is provided with a base positioning slide block (18) in a sliding manner, and a positioning jackscrew (19) for fixing the base positioning slide block (18) is arranged on the base positioning slide block (18).

5. The setting-out positioner for bearing plates of prewelded spherical tanks according to claim 4, characterized in that a circular tray (20) is arranged at the top of the heightening rod (1), movable plates (21) are connected to the tops of the four groups of fine-tuning devices (10), and the four groups of movable plates (21) are hinged with the outer side of the circular tray (20).

6. The can pre-welded bolster lofting locator of claim 5, characterized in that an elastic fixing piece (22) for fixing a compass is provided in the fixing groove (11).

7. The setting-out positioner for a spherical tank pre-welded piece base plate according to claim 6, characterized in that the fine-tuning device (10) comprises a fixed frame (23) and two sets of fine-tuning screws (24), two sets of opposite threaded holes are arranged on the fixed frame (23), one ends of the two sets of fine-tuning screws (24) are respectively screwed through the two sets of threaded holes, and the other ends of the two sets of fine-tuning screws (24) are respectively connected with the first coarse-tuning pull rod (15) and the movable plate (21).