CN112900879A - Synchronous moving centered reinforcing bar pre-stressing device - Google Patents
Synchronous moving centered reinforcing bar pre-stressing device Download PDFInfo
- Publication number
- CN112900879A CN112900879A CN202110034039.5A CN202110034039A CN112900879A CN 112900879 A CN112900879 A CN 112900879A CN 202110034039 A CN202110034039 A CN 202110034039A CN 112900879 A CN112900879 A CN 112900879A
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- Prior art keywords
- driving
- central
- pair
- supporting plates
- side supporting
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a steel bar prestress device moving in the middle simultaneously, wherein a bracket comprises a rectangular lower supporting plate; four vertical supporting plates are formed on the upper end surface of the lower supporting plate; upper supporting plates are formed at the upper ends of the four vertical supporting plates; a rectangular central supporting seat is formed in the middle of the upper end face of the lower supporting plate; the prestress device comprises a moving device and a pair of side supporting plates which are distributed left and right; the pair of side supporting plates are arranged symmetrically left and right relative to the central supporting seat; end clamps of the steel bars are respectively arranged on the end surfaces close to the side supporting plates; a centering device is arranged on the central supporting seat; the centering device is used for driving the pair of side supporting plates to synchronously approach or separate from each other so as to center the steel bar; the prestress device comprises a tension device; the tensioning device is used for driving the pair of side supporting plates to synchronously approach or keep away from each other so as to tension the steel bars.
Description
Technical Field
The invention relates to the technical field of steel bar pre-stressing machinery, in particular to a steel bar pre-stressing device which is moved in the middle in the same direction.
Background
Thereby concrete pipe pile is used in the not good, the less soil of ground bearing capacity of geological conditions to bear the weight of the important part of upper portion building, and present concrete pipe pile all can add prestressing steel in inside for improve the intensity of tubular pile, the prestressing force tensioning machine structure of present tubular pile reinforcing bar is complicated, bulky, moreover in the chuck need be worn to establish in the unloading needs of reinforcing bar in the stretch-draw working process, such operation is more complicated, is unfavorable for improving work efficiency.
Disclosure of Invention
The invention aims to solve the technical problem that the existing reinforcement prestress operation is inconvenient, and provides a reinforcement prestress device which is moved in the middle in the same direction.
The technical scheme for solving the technical problems is as follows: a kind of steel bar prestressed device moving in the middle in unison, including support and prestressed device; the bracket comprises a rectangular lower supporting plate; four vertical supporting plates which are distributed in a rectangular shape are formed on the upper end surface of the lower supporting plate; upper supporting plates are formed at the upper ends of the four vertical supporting plates; a rectangular central supporting seat is formed in the middle of the upper end face of the lower supporting plate; the prestress device comprises a moving device and a pair of side supporting plates which are distributed left and right; the pair of side supporting plates are arranged symmetrically left and right relative to the central supporting seat; end clamps of the steel bars are respectively arranged on the end surfaces close to the side supporting plates; a centering device is arranged on the central supporting seat; the centering device is used for driving the pair of side supporting plates to synchronously approach or separate from each other so as to center the steel bar; the prestress device comprises a tension device; the tensioning device is used for driving the pair of side supporting plates to synchronously approach or keep away from each other so as to tension the steel bars.
Preferably, the lower center of the center support seat is formed with a lower driving groove, and the upper center of the center support seat is formed with an upper driving groove; the upper driving groove is arranged in a penetrating way from front to back; a driving rack and a driving guide pillar are formed at the rear part of the right end surface of the left side supporting plate; a driving rack and a driving guide pillar are formed at the front part of the left end surface of the side supporting plate on the right side; the pair of driving racks is positioned between the pair of driving guide columns; the driving rack and the driving guide pillar penetrate through the central supporting seat in the left-right direction; a centered rotating column is pivoted on the side wall between the lower driving groove and the upper driving groove; a centering driving block in a regular hexagon shape is formed at the upper end of the centering rotating column, and a centering driving gear is formed at the lower end of the centering rotating column; a centering drive gear is located between the pair of drive racks and the pair of drive racks are respectively engaged with the centering drive gear.
Preferably, the driving rack is formed with left and right stop blocks at one end away from the side support plates.
Preferably, a central placement groove in the shape of a semi-cylindrical groove is formed in the middle of the upper end surface of the central support seat.
Preferably, a lifting cylinder is fixed at the center of the upper end surface of the upper supporting plate; a lifting connecting block is fixed at the lower end of a piston rod of the lifting cylinder; the left end surface and the right end surface of the lifting connecting block are respectively hinged with a cuboid lifting driving upper rod; a cuboid lifting driving lower rod is hinged on the upper end surface of the side supporting plate; a telescopic groove for the lower rod to stretch and retract is formed on the end face, far away from the lifting connecting block, of the lifting driving upper rod; a telescopic limit bolt is vertically screwed on the upper end surface of the lifting driving upper rod; the inner side end of the telescopic limit bolt abuts against the lifting driving lower rod.
Preferably, three cylindrical horizontal connecting columns with uniformly distributed circumferences are respectively formed on the mutually close end surfaces of the pair of side supporting plates; the other ends of the three horizontal connecting columns are formed with circular side supporting rings; the reinforcing steel bar end clamp comprises three clamping central columns which are uniformly distributed on the left side and three clamping central columns which are uniformly distributed on the right side; the clamping central column penetrates through the left side and the right side and is pivoted on the side supporting plates on the corresponding sides; the inner side end of the clamping central column is pivoted on the side supporting ring, and the outer side end of the clamping central column is fixedly provided with a clamping driven gear; a clamping cam is fixed at the inner side part of the clamping central column; the clamping cam is positioned between the side supporting plate and the side supporting ring; the end surfaces of the pair of side supporting plates, which are far away from each other, are pivoted with a transmission central gear; the transmission central gear is positioned among the three clamping driven gears, and the three clamping driven gears are respectively meshed with the transmission central gear; the lower ends of the end surfaces of the pair of side supporting plates, which are far away from each other, are respectively screwed with a rotary limiting bolt; one end of the screw rod of the rotary limiting bolt, which is close to the head, is rotatably provided with a limiting gear; the limiting gear is meshed with the clamping driven gear at the lowest end; the end surface of the transmission central gear, which is far away from the side supporting plate, is formed with a cylindrical rotating handle; the rotation central axes of the rotation handle and the transmission central gear are staggered.
The invention has the beneficial effects that: simple structure makes things convenient for reinforcing bar material loading and unloading, makes things convenient for the reinforcing bar to set up between two parties, convenient operation.
Drawings
FIG. 1 is a schematic structural view of a cross section of the present invention;
FIG. 2 is a schematic structural view of the cross section A-A of FIG. 1 according to the present invention;
fig. 3 is a partially enlarged structural view of B in fig. 1 according to the present invention.
In the figure, 10, the stent; 11. a lower support plate; 12. a vertical support plate; 13. an upper support plate; 14. a central support seat; 140. a central placement groove; 141. an upper drive slot; 142. a lower drive slot; 20. a prestressing device; 21. a lifting cylinder; 22. lifting the connecting block; 23. the upper rod is driven to lift; 230. a telescopic groove; 231. a telescopic limit bolt; 24. side supporting plates; 241. driving the guide post; 242. a horizontal connecting column; 243. a side support ring; 245. a drive rack; 246. a left stop block and a right stop block; 247. the lower rod is driven to lift; 25. clamping the central column; 251. a clamping cam; 252. clamping the driven gear; 26. a drive sun gear; 261. rotating the handle; 27. rotating the limit bolt; 271. a limit gear; 28. a centered rotating column; 281. a centered drive block; 282. a centering drive gear; 30. and (5) reinforcing steel bars.
Detailed Description
As shown in fig. 1 to 3, a synchronous centering reinforcing bar prestressing device comprises a bracket 10 and a prestressing device 20; the bracket 10 includes a rectangular parallelepiped lower support plate 11; four vertical support plates 12 which are distributed in a rectangular shape are formed on the upper end surface of the lower support plate 11; upper support plates 13 are formed at the upper ends of the four vertical support plates 12; a rectangular central supporting seat 14 is formed in the middle of the upper end face of the lower supporting plate 11; the pre-stressing device 20 comprises a moving device and a pair of side supporting plates 24 which are distributed left and right; the pair of side supporting plates 24 are arranged symmetrically left and right relative to the central supporting seat 14; end clamps of the steel bars are respectively arranged on the end surfaces close to the side supporting plates 24; a centering device is arranged on the central supporting seat 14; the centering device is used for driving the pair of side supporting plates 24 to synchronously close to or far away from the reinforcing steel bar 30; the pre-stressing means 20 comprises a tensioning means; the tensioning device is used for driving the pair of side supporting plates 24 to synchronously close to or far away from each other so as to complete tensioning of the reinforcing steel bars 30.
As shown in fig. 1 and 2, a lower driving groove 142 is formed in the center of the lower portion of the center support 14, and an upper driving groove 141 is formed in the center of the upper portion; the upper driving groove 141 is arranged to penetrate front and back; a driving rack 245 and a driving guide post 241 are formed at the rear part of the right end surface of the left side supporting plate 24; a driving rack 245 and a driving guide post 241 are formed at the front part of the left end surface of the side supporting plate 24 at the right side; a pair of driving racks 245 are positioned between the pair of driving guide columns 241; the driving rack 245 and the driving guide post 241 penetrate through the central supporting seat 14 in the left-right direction; the side wall between the lower driving groove 142 and the upper driving groove 141 is pivoted with a central rotating column 28; a centering driving block 281 with a regular hexagon shape is formed at the upper end of the centering rotary column 28, and a centering driving gear 282 is formed at the lower end; the centering drive gear 282 is located between the pair of drive racks 245 and the pair of drive racks 245 are respectively meshed with the centering drive gear 282.
As shown in fig. 1 and 2, a left and a right stopper 246 are formed at one end of the driving rack 245 away from the side support plate 24.
As shown in fig. 1, a central placement groove 140 having a semi-cylindrical groove shape is formed in the middle of the upper end surface of the central support seat 14.
As shown in fig. 1, a lifting cylinder 21 is fixed at the center of the upper end surface of the upper support plate 13; a lifting connecting block 22 is fixed at the lower end of a piston rod of the lifting cylinder 21; the left end surface and the right end surface of the lifting connecting block 22 are respectively hinged with a cuboid lifting driving upper rod 23; a cuboid lifting driving lower rod 247 is hinged on the upper end surface of the side supporting plate 24; a telescopic groove 230 for the lifting driving lower rod 247 to stretch is formed on the end surface of the lifting driving upper rod 23 far away from the lifting connecting block 22; a telescopic limit bolt 231 is vertically screwed on the upper end surface of the lifting driving upper rod 23; the inner end of the telescopic limit bolt 231 abuts against the lifting driving lower rod 247.
As shown in fig. 1 and 3, three cylindrical horizontal connecting columns 242 with uniformly distributed circumferences are respectively formed on the end surfaces of the pair of side supporting plates 24 close to each other; the other ends of the three horizontal connecting posts 242 are formed with annular side support rings 243; the reinforcing steel bar end clamp comprises three clamping central columns 25 which are uniformly distributed on the left side in a circumferential mode and three clamping central columns 25 which are uniformly distributed on the right side in a circumferential mode; the clamping central column 25 passes through the left and right and is pivoted on the side supporting plates 24 on the corresponding sides; the inner end of the clamping central column 25 is pivoted on the side supporting ring 243, and the outer end is fixed with a clamping driven gear 252; a clamping cam 251 is fixed on the inner side part of the clamping central column 25; the clamping cam 251 is located between the side support plate 24 and the side support ring 243; the end surfaces of the side supporting plates 24 which are far away from each other are pivoted with a transmission central gear 26; the transmission sun gear 26 is located between the three clamping driven gears 252 and the three clamping driven gears 252 are respectively meshed with the transmission sun gear 26; the lower ends of the end surfaces of the pair of side supporting plates 24 which are far away from each other are respectively screwed with a rotary limiting bolt 27; one end of the screw rod of the rotary limiting bolt 27 close to the head is rotatably provided with a limiting gear 271; the limit gear 271 is meshed with the lowermost clamping driven gear 252; the end surface of the transmission central gear 26 far away from the side supporting plate 24 is formed with a cylindrical rotating handle 261; the rotation knob 261 is offset from the rotation center axes of both the transmission sun gear 26.
The working principle of the reinforcement prestress device moving in the middle simultaneously;
initial state: the pair of side support plates 24 are most distant from each other, and the three clamping cams 251 are located outside the inner cylindrical surface of the side support ring 243 of the corresponding side; the telescopic limit bolt 231 is positioned at the outermost side, the inner side end is separated from the lifting driving lower rod 247, and the limit gear 271 is far away from the side support plate 24;
in operation, the reinforcing bar 30 is first placed in the central seating groove 140 of the central support base 14, then the centering rotary column 28 is rotated to synchronously approach the pair of side support plates 24 through rack and pinion transmission, so that the reinforcing bar 30 is centered, then the centering rotary column 28 is rotated to synchronously separate the pair of side support plates 24 through rack and pinion transmission, then the driving central gear 26 is synchronously rotated by rotating the handle 261, so that the three clamping cams 251 are rotated, so that the left and right three clamping cams 251 clamp the left and right ends of the reinforcing bar 30, then the rotation limiting bolt 27 is screwed to make the limiting gear 271 abut against the side support plates 24, so that the limiting gear 271 is limited from rotating, so that all the gears and the clamping cams 251 are limited, then the telescopic limiting bolt 231 is screwed to make the inner end of the telescopic limiting bolt 231 abut against the lifting driving lower rod 247, and then the lifting connection block 22 is lowered, so that a pair of side support plates 24 are apart from thus prestressing the reinforcing bars 30.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, there are variations on the embodiment and the application scope according to the idea of the present invention, and the content of the present description should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a with reinforcing bar prestressing force device placed in middle of shifting which characterized in that: comprises a bracket (10) and a prestressing device (20); the bracket (10) comprises a rectangular lower support plate (11); four vertical supporting plates (12) which are distributed in a rectangular shape are formed on the upper end surface of the lower supporting plate (11); upper supporting plates (13) are formed at the upper ends of the four vertical supporting plates (12); a rectangular central supporting seat (14) is formed in the middle of the upper end face of the lower supporting plate (11); the pre-stressing device (20) comprises a moving device and a pair of side supporting plates (24) distributed left and right; a pair of side supporting plates (24) are arranged symmetrically left and right relative to the central supporting seat (14); end clamps of the steel bars are respectively arranged on the end surfaces of the pair of side supporting plates (24) close to each other; a centering device is arranged on the central supporting seat (14); the centering device is used for driving the pair of side supporting plates (24) to synchronously close to or far away from each other so as to center the reinforcing steel bar (30); the pre-stressing device (20) comprises a tensioning device; the tensioning device is used for driving the pair of side supporting plates (24) to synchronously approach or separate so as to tension the steel bars (30).
2. A concentric reinforcing bar prestressing apparatus according to claim 1, wherein: a lower driving groove (142) is formed in the center of the lower part of the central supporting seat (14), and an upper driving groove (141) is formed in the center of the upper part of the central supporting seat; the upper driving groove (141) is arranged in a penetrating way from front to back; a driving rack (245) and a driving guide column (241) are formed at the rear part of the right end surface of the left side supporting plate (24); a driving rack (245) and a driving guide column (241) are formed at the front part of the left end surface of the side supporting plate (24) at the right side; a pair of driving racks (245) are positioned between the pair of driving guide columns (241); the driving rack (245) and the driving guide post (241) penetrate through the central supporting seat (14) in the left-right direction; a centering rotating column (28) is pivoted on the side wall between the lower driving groove (142) and the upper driving groove (141); a centering driving block (281) with a regular hexagon shape is formed at the upper end of the centering rotary column (28), and a centering driving gear (282) is formed at the lower end; the centering drive gear (282) is located between the pair of drive racks (245) and the pair of drive racks (245) are respectively engaged with the centering drive gear (282).
3. A concentric reinforcing bar prestressing apparatus according to claim 2, wherein: a left stop block and a right stop block (246) are formed at one end of the driving rack (245) far away from the side supporting plate (24).
4. A concentric reinforcing bar prestressing apparatus according to claim 1, wherein: a semi-cylindrical groove-shaped central placement groove (140) is formed in the middle of the upper end face of the central support seat (14).
5. A concentric reinforcing bar prestressing apparatus according to claim 1 or 2, wherein: a lifting cylinder (21) is fixed at the center of the upper end surface of the upper supporting plate (13); a lifting connecting block (22) is fixed at the lower end of a piston rod of the lifting cylinder (21); the left end surface and the right end surface of the lifting connecting block (22) are respectively hinged with a cuboid lifting driving upper rod (23); a cuboid lifting driving lower rod (247) is hinged on the upper end surface of the side supporting plate (24); a telescopic groove (230) for the lower lifting driving rod (247) to stretch is formed on the end surface of the upper lifting driving rod (23) far away from the lifting connecting block (22); a telescopic limit bolt (231) is vertically screwed on the upper end surface of the lifting driving upper rod (23); the inner end of the telescopic limit bolt (231) abuts against the lifting driving lower rod (247).
6. A concentric reinforcing bar prestressing apparatus according to claim 1, wherein: three cylindrical horizontal connecting columns (242) which are uniformly distributed on the circumference are respectively formed on the end surfaces of the pair of side supporting plates (24) which are close to each other; the other ends of the three horizontal connecting columns (242) are formed with circular side supporting rings (243); the reinforcing steel bar end clamp comprises three clamping central columns (25) which are uniformly distributed on the left side in a circumferential mode and three clamping central columns (25) which are uniformly distributed on the right side in a circumferential mode; the clamping central column (25) penetrates left and right and is pivoted on the side supporting plates (24) on the corresponding sides; the inner side end of the clamping central column (25) is pivoted on the side supporting ring (243), and the outer side end is fixed with a clamping driven gear (252); a clamping cam (251) is fixed on the inner side part of the clamping central column (25); the clamping cam (251) is positioned between the side support plate (24) and the side support ring (243); the end surfaces of the side supporting plates (24) which are far away from each other are pivoted with a transmission central gear (26); the transmission central gear (26) is positioned among the three clamping driven gears (252) and the three clamping driven gears (252) are respectively meshed with the transmission central gear (26); the lower ends of the end surfaces of the pair of side supporting plates (24) far away from each other are respectively screwed with a rotary limiting bolt (27); one end of the screw rod of the rotary limiting bolt (27) close to the head is rotatably provided with a limiting gear (271); the limit gear (271) is meshed with the clamping driven gear (252) at the lowest end; a cylindrical rotating handle (261) is formed on the end face, away from the side supporting plate (24), of the transmission central gear (26); the rotation handle 261 and the rotation center axis of the transmission sun gear 26 are offset from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034039.5A CN112900879A (en) | 2021-01-12 | 2021-01-12 | Synchronous moving centered reinforcing bar pre-stressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034039.5A CN112900879A (en) | 2021-01-12 | 2021-01-12 | Synchronous moving centered reinforcing bar pre-stressing device |
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| Publication Number | Publication Date |
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| CN112900879A true CN112900879A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110034039.5A Pending CN112900879A (en) | 2021-01-12 | 2021-01-12 | Synchronous moving centered reinforcing bar pre-stressing device |
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