CN211110288U - Steel wire drawing drum for bridge cable - Google Patents
Steel wire drawing drum for bridge cable Download PDFInfo
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- CN211110288U CN211110288U CN201921340703.3U CN201921340703U CN211110288U CN 211110288 U CN211110288 U CN 211110288U CN 201921340703 U CN201921340703 U CN 201921340703U CN 211110288 U CN211110288 U CN 211110288U
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- inner tube
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- drawing drum
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Abstract
The utility model relates to a steel wire drawing drum for bridge cable, the on-line screen storage device comprises a base, the base vertical layout has the dabber, the outside cover of dabber has the rotation axle sleeve, the bottom and the base of rotation axle sleeve rotate to be connected the bottom outside of rotating the axle sleeve is provided with the carousel, be provided with the brake mechanism that the control carousel changes to stop between the bottom surface of carousel and the base the tensioning inner tube of a tyre has been arranged around rotating the axle sleeve in the front of carousel, and the lapping steel wire cover is established on the tensioning inner tube of a tyre, makes the steel wire reel be in the tensioning state through the tensioning inner. The utility model discloses a drawing drum is vertical to be adapted to the wire unwrapping wire, and the wire tensioning inner tube of a tyre is adjustable, adjusts the principle for utilizing parallelogram's flexibility, thereby changes parallelogram's the contained angle of the adjacent limit of parallelogram and changes parallelogram's height to change tensioning inner tube of a tyre external diameter, realize the tensioning that the steel wire coiled.
Description
Technical Field
The utility model relates to a suspension bridge steel wire drawing drum. Belongs to the technical field of suspension bridge engineering equipment.
Background
At present, the main cable erection method of the suspension bridge mainly comprises two methods: an air spinning process (AS process) and a prefabricated parallel wire strand process (PPWS process). The AS method is a method of knitting a plurality of steel wires into a steel wire strand on a catwalk by taking the steel wires AS a traction unit, and then binding a plurality of strands to form a main cable; the PPWS law uses a strand as a pulling unit, and then ties the strand into a main cable. The main cable strand of the large-span suspension bridge is heavy, the requirement on traction equipment is high, and particularly when the large-span suspension bridge is built in a mountain area where traffic is not available, the PPWS method has larger transportation difficulty than the AS method, so that the AS method is preferred for the construction of the large-span suspension bridge in the mountain area.
The suspension bridge main cable adopts an air spinning method (AS method) AS one of main cable construction methods, and is widely used abroad at present, but the suspension bridge main cable construction methods in China are all prefabricated parallel strand methods (PPWS methods), and no suspension bridge constructed by the air spinning method (AS method) exists in continents of China. The AS method is a method that a plurality of steel wires are woven into a steel wire strand on a catwalk by taking the steel wires AS a traction unit, and then a plurality of strands are bound to form a main cable; the PPWS law uses a strand as a pulling unit, and then ties the strand into a main cable. The main cable strand of the large-span suspension bridge is heavy, the requirement on required traction equipment is high, particularly, the large-span suspension bridge is built in a mountain area where traffic is not available, the AS method can avoid the transportation problem caused by overlarge weight of a single cable strand in the PPWS method, and the air spinning method (AS method) has unique advantages for the erection of the main cable of the suspension bridge with the overlarge span and difficult transportation in a bridge location area.
The steel wire weight of suspension bridge main push-towing rope is heavy, and length is long, utilizes current pay-off device can't go on under high-speed state, in case improve unwrapping wire speed, and the steel wire unwrapping wire will be unstable, appears in disorder and jump silk phenomenon to pay-off device also can be unstable, greatly reduced the efficiency of construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a steel wire drawing drum for bridge cable is provided to above-mentioned prior art, can realize high-speed unwrapping wire, speed can reach 300m/min, and the operation is stable, the scattered indiscriminate problem of jumping the silk of steel wire can not appear, has improved the efficiency of construction greatly.
The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a steel wire drawing drum for bridge cable, includes the base, the base vertical layout has the dabber, the outside cover of dabber has the rotation axle sleeve, the bottom and the base of rotation axle sleeve rotate to be connected be provided with the carousel in the bottom outside of rotation axle sleeve, be provided with the brake mechanism that control carousel commentaries on classics stops between the bottom surface of carousel and the base the front of carousel has arranged the tensioning inner tube around rotating the axle sleeve, and the lapping steel wire cover is established on the tensioning inner tube, the tensioning inner tube is divided into a plurality of tensioning units along circumference equidistance, and the bottom of every tensioning unit is connected with the carousel through the linear guide that the level was arranged for the tensioning unit of tensioning inner tube is along radial contraction or expansion with the dabber as the center, makes the steel wire reel.
Preferably, a plurality of connecting rods are arranged between each tensioning unit of the tensioning inner tube and the rotating shaft sleeve, one end of each connecting rod is hinged to the inner wall surface of each tensioning unit, the other end of each connecting rod is hinged to a tube opening core sleeve sleeved on the rotating shaft sleeve, and the contraction or expansion of the tensioning inner tube is realized through the axial movement of the tube opening core sleeve.
Preferably, a pressing nut is arranged at the top end of the mandrel and is in threaded fit with the rotary shaft sleeve, the bottom of the pressing nut is fixedly connected with the tyre expanding core sleeve, and the tyre expanding core sleeve is adjusted to move up and down along the mandrel.
Preferably, brake mechanism includes brake disc, a pair of brake arm and damping hydro-cylinder with the coaxial arrangement of carousel, brake disc and carousel fixed connection, rotation is articulated in the middle of a pair of brake arm to articulated point and base fixed connection, a pair of brake arm one end be provided with the dish that acts on and brake disc, the damping hydro-cylinder is connected at the other end of brake arm, realizes under the effect of damping hydro-cylinder that the dish that brakes presss from both sides tightly and releases the dish
Preferably, the pay-off reel comprises a wire pressing frame, the wire pressing frame presses the surface of the steel wire reel by means of gravity, and the steel wire reel is arranged between the wire pressing frame and the rotary disc.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a drawing drum is vertical to be adapted to the wire unwrapping wire, and the wire tensioning inner tube of a tyre is adjustable, and the regulation principle is that the flexibility of parallelogram is utilized, changes the contained angle of the adjacent limit of parallelogram thereby change the height of parallelogram to change the outer diameter of the tensioning inner tube of a tyre, for guaranteeing the tensioning inner tube of a tyre along horizontal motion, the guide rail is installed to every tensioning inner tube of a tyre piece lower part, and the size of the tensioning inner tube of a tyre is adjusted and is adopted bull thread structure, can adjust the size of the tensioning inner tube of a tyre; the pay-off reel is arranged below the brake disc, the two planes at the edge of the brake disc are provided with the brake system, and the brake system generates the back tension of the steel wire of the fall-back system, so that the tension device is ensured to generate the stability of the tension of the steel wire.
2. The utility model discloses a braking system adopts hydraulic pressure or pneumatic control, and mechanical structure adopts the action principle design of axle circlip pincers, and the pressure of adjustment hydraulic pressure, atmospheric pressure can realize brake, damping, break away from the action.
3. The utility model discloses a wire device is pressed to pay off reel overhead guarantees that the steel wire can not be in disorder during high-speed unwrapping wire.
4. The utility model discloses a drawing drum unwrapping wire speed is high, can reach 300 m/min.
Drawings
Fig. 1 is a schematic structural diagram in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a sealing plate in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 and 2, the steel wire drawing drum for the bridge cable in the embodiment includes a base 1 which can be stably placed on the ground, a central position of the base 1 is fixed with a vertically arranged mandrel 2, the outer side of the mandrel 2 is sleeved with a rotating shaft sleeve 3, the mandrel 2 is rotatably connected with the rotating shaft sleeve 3 through a bearing, the bottom end of the rotating shaft sleeve 3 is connected with the base 1 through a thrust self-aligning roller bearing so as to realize the rotation of the rotating shaft sleeve 2 relative to the base 1 and the mandrel 2, a turntable 4 is arranged on the outer side of the bottom of the rotating shaft sleeve 3, a brake mechanism 5 is arranged between the bottom surface of the turntable 4 and the base 1, and the rotation and stop of the turntable 4 are controlled through the brake mechanism 5.
The front face of the turntable 4 is provided with a tensioning inner tube 6 around the rotating shaft sleeve 2, the coiled steel wire is sleeved on the tensioning inner tube 6, the tensioning inner tube 6 is equally divided into four tensioning units along the circumferential direction, the bottom of each tensioning unit is connected with the turntable 4 through a horizontally arranged linear guide rail 7, so that the tensioning units of the tensioning inner tube 6 contract or expand along the radial direction by taking the mandrel 2 as the center, and a steel wire reel sleeved on the tensioning inner tube 6 is in a tensioning state.
A plurality of connecting rods 8 are arranged between each tensioning unit of the tensioning inner tube 6 and the rotating shaft sleeve 3, one end of each connecting rod 8 is hinged to the inner wall surface of each tensioning unit, the other end of each connecting rod is hinged to a tube core sleeve 9 sleeved on the rotating shaft sleeve 3, a pressing nut 10 is arranged at the top end of the mandrel 2, the pressing nut 10 is in threaded fit with the rotating shaft sleeve 3, the bottom of the pressing nut 10 is fixedly connected with the tube core sleeve 9, the tube core sleeve 9 can move up and down along the mandrel 2 by adjusting the pressing nut 10, the adjusting principle is that the included angle of adjacent sides of a parallelogram is changed by using the flexibility of the parallelogram (formed by the tensioning units, the connecting rods and the tube core sleeves), so that the height of the parallelogram is changed, and the outer diameter of the tensioning inner tube is changed.
In order to prevent the steel wire from jumping violently during the high-speed unreeling process so as to be separated from the unreeling disc, a wire pressing frame 11 is arranged, the wire pressing frame 11 presses the surface of the steel wire disc by means of gravity, and the steel wire disc is arranged between the wire pressing frame 11 and the rotary disc 4.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (5)
1. The utility model provides a bridge is steel wire drawing drum for cable, its characterized in that: the winding steel wire tensioning device comprises a base, wherein a mandrel is vertically arranged on the base, a rotating shaft sleeve is sleeved on the outer side of the mandrel, the bottom end of the rotating shaft sleeve is rotatably connected with the base, a rotary table is arranged on the outer side of the bottom of the rotating shaft sleeve, a brake mechanism for controlling the rotary table to rotate and stop is arranged between the bottom surface of the rotary table and the base, a tensioning inner tube is arranged on the front face of the rotary table around the rotating shaft sleeve, a winding steel wire is sleeved on the tensioning inner tube, the tensioning inner tube is equally divided into a plurality of tensioning units along the circumferential direction, the bottom of each tensioning unit is connected with the rotary table through a horizontally arranged linear guide rail, so that the tensioning units of the tensioning inner tube contract or expand.
2. The steel wire drawing drum for the bridge cable according to claim 1, wherein: and a plurality of connecting rods are arranged between each tensioning unit of the tensioning inner tube and the rotating shaft sleeve, one end of each connecting rod is hinged with the inner wall surface of the tensioning unit, the other end of each connecting rod is hinged with a tube opening core sleeve sleeved on the rotating shaft sleeve, and the contraction or expansion of the tensioning inner tube is realized through the axial movement of the tube opening core sleeve.
3. The steel wire drawing drum for the bridge cable according to claim 2, wherein: the top of dabber is provided with down-pressure nut, and down-pressure nut and rotation axle sleeve screw-thread fit, the bottom and the child core cover fixed connection of opening of down-pressure nut realize opening the reciprocating of child core cover along the dabber through adjusting down-pressure nut.
4. The steel wire drawing drum for the bridge cable according to claim 1, wherein: brake mechanism includes brake disc, a pair of brake arm and the damping hydro-cylinder with the coaxial arrangement of carousel, brake disc and carousel fixed connection, rotation is articulated in the middle of a pair of brake arm to articulated point and base fixed connection, a pair of brake arm one end be provided with the dish of stopping that acts on with the brake disc, the other end at the brake arm is connected to the damping hydro-cylinder, realizes the dish under the effect of damping hydro-cylinder and stops the clamp of dish tightly and release.
5. The steel wire drawing drum for the bridge cable according to claim 1, wherein: comprises a wire pressing frame, wherein the wire pressing frame 12 presses the surface of a steel wire disc by means of gravity, and the steel wire disc is arranged between the wire pressing frame and a rotary disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921340703.3U CN211110288U (en) | 2019-08-16 | 2019-08-16 | Steel wire drawing drum for bridge cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921340703.3U CN211110288U (en) | 2019-08-16 | 2019-08-16 | Steel wire drawing drum for bridge cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211110288U true CN211110288U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921340703.3U Active CN211110288U (en) | 2019-08-16 | 2019-08-16 | Steel wire drawing drum for bridge cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510449A (en) * | 2019-08-16 | 2019-11-29 | 江苏法尔胜缆索有限公司 | Bridge cable steel wire draw drum |
| CN112660909A (en) * | 2020-11-27 | 2021-04-16 | 山西潞安集团余吾煤业有限责任公司 | Fixing device of anchor rope of knoing |
| CN113321052A (en) * | 2021-05-11 | 2021-08-31 | 凯盛重工有限公司 | Turntable device for placing steel strands |
| CN114476817A (en) * | 2022-03-24 | 2022-05-13 | 诸暨市赋德机械有限公司 | Special winch cart for testing oil-resistant flame-retardant high-pressure steel wire braided rubber tube |
-
2019
- 2019-08-16 CN CN201921340703.3U patent/CN211110288U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510449A (en) * | 2019-08-16 | 2019-11-29 | 江苏法尔胜缆索有限公司 | Bridge cable steel wire draw drum |
| CN112660909A (en) * | 2020-11-27 | 2021-04-16 | 山西潞安集团余吾煤业有限责任公司 | Fixing device of anchor rope of knoing |
| CN112660909B (en) * | 2020-11-27 | 2022-06-28 | 山西潞安集团余吾煤业有限责任公司 | Fixing device of anchor rope of knoing |
| CN113321052A (en) * | 2021-05-11 | 2021-08-31 | 凯盛重工有限公司 | Turntable device for placing steel strands |
| CN113321052B (en) * | 2021-05-11 | 2023-03-14 | 凯盛重工有限公司 | Turntable device for placing steel strands |
| CN114476817A (en) * | 2022-03-24 | 2022-05-13 | 诸暨市赋德机械有限公司 | Special winch cart for testing oil-resistant flame-retardant high-pressure steel wire braided rubber tube |
| CN114476817B (en) * | 2022-03-24 | 2022-10-04 | 诸暨市赋德机械有限公司 | Special winch cart for testing oil-resistant flame-retardant high-pressure steel wire braided rubber tube |
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