CN113481890B - Stay cable anchor ring dismounting device - Google Patents
Stay cable anchor ring dismounting device Download PDFInfo
- Publication number
- CN113481890B CN113481890B CN202110821495.4A CN202110821495A CN113481890B CN 113481890 B CN113481890 B CN 113481890B CN 202110821495 A CN202110821495 A CN 202110821495A CN 113481890 B CN113481890 B CN 113481890B
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- gear
- bracket
- stay cable
- ring
- arm brace
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a stay cable anchor ring dismantling device which comprises a supporting leg bracket, a driving mechanism, a transmission mechanism and a tensioning jack, wherein the driving mechanism is arranged on the supporting leg bracket; the driving mechanism comprises a speed reducing motor and a gear, the speed reducing motor is arranged in the arm brace bracket, and the gear is connected with an output shaft of the speed reducing motor; the transmission mechanism comprises a gear ring and an inner connecting ring, the inner connecting ring is arranged in the arm brace bracket and can be arranged on the anchorage device, and the gear ring is circumferentially arranged outside the inner connecting ring and is meshed with the gear; the tensioning jack is arranged on the arm brace bracket and can be connected with the stay cable. Above-mentioned device is demolishd to suspension cable anchor ring, through the transmission of gear and ring gear, the motor provides the rotatory power can unscrew the anchor ring of corrosion fast and dismantle, has shortened the construction period that the suspension cable was changed by a wide margin.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a stay cable anchor ring dismantling device.
Background
In the process of replacing and removing the old cable of the cable-stayed bridge, the situation that the anchor ring cannot be smoothly taken down due to the fact that the threads on the surface of the anchor device are corroded can be met, and the cable-stayed bridge cannot be detached due to the fact that the anchor ring cannot be withdrawn when the corrosion is serious. Under the condition that the anchor ring cannot be unscrewed by adopting a rust remover and other mechanical modes, the cable replacement time is too long, the construction period of stay cable replacement construction is seriously limited, the passing vehicles of an important transportation junction are seriously jammed for a long time, and the serious economic loss and the bad social influence can be caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a stay cable anchor ring dismantling device which can be used for rapidly dismantling a rusted anchor ring and shortening the stay cable replacement construction period.
In order to achieve the above object, the present invention provides a stay cable anchorage device, including a brace bracket, a driving mechanism, a transmission mechanism and a tensioning jack;
the driving mechanism comprises a speed reducing motor and a gear, the speed reducing motor is arranged in the arm brace bracket, and the gear is connected with an output shaft of the speed reducing motor;
the transmission mechanism comprises a gear ring and an inner connecting ring, the inner connecting ring is arranged in the arm brace bracket and can be arranged on the anchorage device, and the gear ring is circumferentially arranged outside the inner connecting ring and is meshed with the gear;
the tensioning jack is arranged on the arm brace bracket and can be connected with the stay cable.
The supporting foot support is arranged on the anchoring end of the stay cable, the inner connecting ring is arranged on the anchorage device, the tension jack firstly unloads the stay cable to ensure that the anchor ring is not stressed, then the gear motor is started, the gear ring is driven to rotate through the gear, so that the anchor ring can be unscrewed, and finally the stay cable can be dismantled by completely unloading the stay cable.
The device for dismantling the stay cable anchorage ring has the beneficial effects that: the motor provides rotary power, the anchor ring is screwed out through the rotation of the gear, the anchor ring which is corroded and difficult to take out can be quickly disassembled, and the construction period of replacing the stay cable is greatly shortened.
Further, still be equipped with elevating system in the spike support, including bracket, driving motor and ball, the bracket is located the spike support, gear motor sets up on the bracket, ball sets up along the axial of gear, and one end is connected with the bracket, and the other end is connected with driving motor, ball and spike support threaded connection.
The transmission motor drives the ball screw to rotate, so that the ball screw is axially displaced relative to the arm brace support, the bracket and the motor can be driven to axially move, and the gear can correspondingly move outwards together when the anchor ring is screwed out outwards.
Further, elevating system still includes the guiding axle, the top of spike support is equipped with the guiding hole, the guiding axle sets up along ball screw's axial, and one end sets up on the bracket, and the other end is inserted and is established in the guiding hole.
The guide shaft guides Kong Xianwei so that the elevating mechanism can move only in the axial direction of the ball screw when the driving mechanism is moved.
Further, the inner connecting ring is provided with a boss around the circumferential direction, the boss is provided with a plurality of through holes, the gear ring is provided with a plurality of jacks around the circumferential direction, the jacks are in the same number and one-to-one correspondence with the through holes, and fixing bolts are inserted.
The inner ring and the toothed ring are detachably connected, and the inner ring and the toothed ring with corresponding specifications can be installed for anchor rings with different sizes, so that the application range is widened.
Further, still be equipped with fixed establishment on the spike support, including capstan winch and stay cord, the stay cord is equipped with a plurality ofly, sets up around the circumference of Zhou Chengjiao support, and one end is connected with the spike support, and the other end is connected with the capstan winch.
The arm brace bracket is obliquely arranged at the anchoring end, the winch tightens the pull rope, and the pull ropes pull the arm brace bracket towards the anchoring end from multiple directions so as to fix the arm brace bracket at the position.
Furthermore, one end of each of the pull ropes, which is far away from the winch, is provided with a fixing clamp, each fixing clamp comprises two symmetrical concave clamps which are arranged oppositely, two convex ends of each concave clamp are provided with threaded through holes, and the pull rope is connected with one of the concave clamps.
The two concave clamps clamp the arm brace of the arm brace bracket and fix the arm brace bracket by inserting bolts into the threaded through holes, so that the fixing clamps can firmly clamp the arm brace bracket, and the pull rope can fix the arm brace bracket.
Further, the spill presss from both sides including the diaphragm and set up the splint in the diaphragm both sides, the inside cavity that has of diaphragm, be equipped with spiral spring and connecting wire in the cavity, spiral spring is fixed to be set up, the one end of connecting wire is connected with spiral spring, and the other end is worn out the cavity and is connected with splint.
The clamping plates on the two sides of the transverse plate can be pulled outwards to adapt to different widths of different positions of the supporting leg bracket, and the connecting wire draws the clamping plates inwards under the action of the volute spiral spring, so that the clamping effect is achieved.
Furthermore, an arc-shaped groove with a T-shaped section is formed in one side, away from each other, of the concave clamp in the circumferential direction, a T-shaped sliding rod in sliding connection is arranged in the arc-shaped groove, and the pull rope is detachably connected with the T-shaped sliding rod.
The T-shaped sliding rod can slide in the arc-shaped groove and rotate relatively, so that the pull rope can rotate relative to the fixing clamp, the direction of the pull rope can be adjusted, and the pull rope can apply force to the arm brace support better.
Furthermore, a threaded hole is formed in the T-shaped sliding rod, and a connecting bolt is arranged at one end, far away from the winch, of the pull rope.
The stay cord passes through connecting bolt and is connected with the screw hole of T shape slide bar, has better fixed effect.
On the other hand, the invention also provides a method for dismantling the stay cable anchorage ring, which adopts the stay cable anchorage ring dismantling device and specifically comprises the following steps:
1) The supporting leg bracket is fixedly arranged at the anchoring end of the stay cable;
2) The stay cable is connected with the tensioning jack, and the tensioning jack is started to unload the stay cable;
3) The gear is started to drive the gear to rotate, and the gear drives the gear ring and the inner connecting ring to rotate so as to screw out the anchor ring;
4) And removing the stay cable after the stay cable completely unloads the force.
The quick disassembly of the stay cable anchor ring can be completed through the steps so as to facilitate the replacement of the stay cable.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. The elements or parts are not necessarily drawn to scale in all figures.
Fig. 1 is a schematic view of a stay cable anchorage member dismantling device according to an embodiment of the present invention;
fig. 2 is a front view of a stay cable anchorage member removing device shown in fig. 1;
fig. 3 is a schematic view of an inner joint ring of a stay cable anchorage member removing device shown in fig. 1;
fig. 4 is an operational view of a stay cable anchorage member removing device shown in fig. 1;
fig. 5 is a schematic view of a fixing clip of the stay cable anchorage member dismantling device shown in fig. 1;
reference numerals are as follows:
1-anchorage device, 10-brace bracket, 20-speed reducing motor, 21-gear, 30-inner connecting ring, 31-toothed ring, 32-boss, 33-fixing bolt, 40-tensioning jack, 50-transmission motor, 51-bracket, 52-ball screw, 53-guide shaft, 60-winch, 61-pull rope, 611-connecting bolt, 62-fixing clamp, 63-concave clamp, 631-transverse plate 632, 633-volute spring, 634-connecting wire, 635-arc groove, 636-T-shaped slide rod
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 5, the present invention provides a device for removing an anchor ring of a stay cable, including a brace bracket 10, a driving mechanism, a transmission mechanism and a tension jack 40, wherein the brace bracket 10 is fixed at an anchoring end, the stay cable is firstly removed by the jack, then the driving mechanism is started, and a rusted anchor ring is unscrewed by the transmission mechanism, so as to rapidly remove the anchor ring and replace the stay cable.
Specifically, the driving mechanism comprises a speed reducing motor 20 and a gear 21, the speed reducing motor 20 is arranged in the arm brace support 10, an output shaft is connected with the gear 21, the transmission mechanism comprises an inner ring 30 and a gear ring 31, the inner ring 30 is used for being installed on the anchorage device and connected with the anchorage ring, and the gear ring 31 is arranged on the outer wall of the inner ring 30 in the circumferential direction and meshed with the gear 21. Gear motor 20 drives gear 21 and rotates, can drive inner link 30 and the anchor ring through gear 21 and rotate, under the revolving force that gear motor 20 provided, can unscrew the anchor ring through the transmission and accomplish the dismantlement.
The tension jack 40 is installed on the arm brace bracket 10 and can be connected to the stay cable. When the inclined stay cable is disassembled, the inclined stay cable is connected with the tensioning jack 40, and before the motor is started, the inclined stay cable is firstly unloaded through the tensioning jack 40, so that the anchor ring is ensured not to be stressed so as to rotate conveniently.
Specifically, still be equipped with elevating system in the spike support 10, including bracket 51, driving motor 50 and ball 52, bracket 51 is located spike support 10, and gear motor 20 and ball 52 all set up on bracket 51, and ball 52's axial sets up along gear 21's axial, and one end is connected with bracket 51 rotation, and the other end is connected with driving motor 50, and the middle part passes spike support 10 to with spike support 10 threaded connection. The ball screw 52 is driven to rotate by the driving motor 50, so that the bracket 51 is displaced relative to the arm brace 10 and moves along the axial direction of the ball screw 52. In the process of screwing the anchor ring and the gear ring 31 outwards, the transmission motor 50 simultaneously drives the bracket 51 to displace, so that the gear 21 moves along the axial direction and outwards moves along with the gear ring 31 to keep a meshed state.
The lifting mechanism further comprises a guide shaft 53, a guide hole is formed in the arm brace support 10, the guide shaft 53 is arranged along the axial direction of the ball screw 52, one end of the guide shaft is arranged on the bracket 51, and the other end of the guide shaft is inserted into the guide hole and is in sliding connection with the guide hole. When the transmission motor 50 drives the bracket 51 to move, the guide shaft 53 can play a role in guiding, so that the bracket 51 is ensured to move along the axial direction of the bracket, and meanwhile, the limiting function is played, and the bracket 51 and the speed reduction motor 20 are prevented from rotating along with the ball screw 52. In the present embodiment, the guide shaft 53 is provided in plurality for improving stability.
Specifically, as shown in fig. 3, the inner ring 30 is provided with a boss 32 around the circumferential direction, the boss 32 is provided with a plurality of through holes around the circumferential direction, the ring gear 31 is provided with a plurality of insertion holes with the same number around the circumferential direction, the through holes correspond to the insertion holes in one-to-one correspondence, and the fixing bolts 33 are inserted into the through holes. The gear 21 is fixedly connected with the inner ring 30 through the fixing bolt 33, and the toothed ring 31 is detachably mounted, so that the gear can be replaced according to anchor rings with different sizes, and the application range is improved.
Specifically, as shown in fig. 4 and 5, the temple bracket 10 is further provided with a fixing mechanism for fixing the device at the anchoring end, including a winch 60, a pulling rope 61 and a fixing clip 62, and since the temple bracket 10 is obliquely installed at the stay cable anchoring portion, the winch 60 is disposed above, and the temple bracket 10 is fastened and fixed by the pulling rope 61 and the fixing clip 62. The pull ropes 61 are provided with a plurality of pull ropes, one end of each pull rope is connected with the winch 60, the other end of each pull rope is connected with the fixing clamp 62, each fixing clamp 62 comprises two symmetrical concave clamps 63 which are arranged in opposite directions, each pull rope 61 is connected with one concave clamp 63, the convex ends of the concave clamps 63 are provided with threaded through holes, the two concave clamps 63 are clamped on each position of the supporting foot support 10, and the fixing can be completed through bolts. In the present embodiment, the partial string 61 is fixed to the upper right position of the temple bracket 10, the partial string 61 is fixed to the lower left position of the temple bracket 10, and the winch 60 tightens the string 61 to fix the temple bracket 10 to the anchor end.
Further, the concave clamp 63 includes the horizontal plate 631 and the clamp plate 632 that sets up in both sides, and the horizontal plate 631 is inside to have a cavity, is equipped with two sets of spiral spring 633 and connects the rope 634 in the cavity, and spiral spring 633 is fixed to be set up, connects the rope 634 to wear out and be connected with clamp plate 632 from both sides respectively, with two clamp plate 632 outwards pulling to the position that each width that is applicable to the spike support 10 is different can both carry out the centre gripping. An arc-shaped groove 635 with a T-shaped cross section is arranged on one side, away from each other, of each concave clamp 63, the arc-shaped grooves 635 are formed in the circumferential direction, a T-shaped sliding rod 636 in sliding connection is arranged inside each arc-shaped groove 635, a threaded hole is formed in the middle of each T-shaped sliding rod 636, and a connecting bolt 611 is arranged at the end of each pull rope 61. The pull rope 61 is detachably connected with the T-shaped sliding rod 636 through the connecting bolt 611 and the threaded hole, so that the connecting effect is better, and the fixing clamp 62 can rotate relatively to achieve a better fixing effect.
The stay cable and anchor ring dismantling method using the stay cable and anchor ring dismantling device comprises the following steps of firstly installing and fixing the supporting foot bracket 10 at the anchoring end of a stay cable through the winch 60 and the pull rope 61, connecting the stay cable with the tensioning jack 40, and dismantling the stay cable through the jack so as to ensure that the anchor ring is not stressed and can rotate. And then the gear motor 20 is started, the gear 21 drives the gear ring 31 and the inner connecting ring 30 to rotate, so that the anchor ring is unscrewed, meanwhile, the transmission motor 50 drives the ball screw 52 to rotate, the bracket 51 is driven to move along the axial direction, the gear 21 and the gear ring 31 are kept meshed, the oblique cable is completely relieved after the anchor ring is unscrewed, and the oblique cable can be detached.
The stay cable anchor ring dismantling device is used, under the transmission of the gear, the motor provides rotating power, the stay cable anchor ring can be quickly screwed out and dismantled, and the construction period of stay cable replacement is greatly shortened.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (7)
1. The utility model provides a device is demolishd to suspension cable anchorage backing which characterized in that: comprises a supporting leg bracket, a driving mechanism, a transmission mechanism and a tensioning jack;
the driving mechanism comprises a speed reducing motor and a gear, the speed reducing motor is arranged in the arm brace bracket, and the gear is connected with an output shaft of the speed reducing motor;
the transmission mechanism comprises a gear ring and an inner connecting ring, the inner connecting ring is arranged in the arm brace bracket and can be arranged on the anchorage device, and the gear ring is circumferentially arranged outside the inner connecting ring and is meshed with the gear;
the tensioning jack is arranged on the arm brace bracket and can be connected with the stay cable;
the supporting foot bracket is also provided with a fixing mechanism which comprises a winch and a plurality of pull ropes, the pull ropes are arranged around the circumference of the Zhou Chengjiao bracket, one end of each pull rope is connected with the supporting foot bracket, and the other end of each pull rope is connected with the winch;
the lifting mechanism is further arranged in the arm brace support and comprises a bracket, a transmission motor and a ball screw, the bracket is located in the arm brace support, the speed reduction motor is arranged on the bracket, the ball screw is arranged along the axial direction of the gear, one end of the ball screw is rotatably connected with the bracket, the other end of the ball screw is connected with the transmission motor, and the ball screw is in threaded connection with the arm brace support;
the lifting mechanism further comprises a guide shaft, a guide hole is formed in the top of the arm brace support, the guide shaft is arranged along the axial direction of the ball screw, one end of the guide shaft is arranged on the bracket, and the other end of the guide shaft is inserted into the guide hole.
2. A stay cable anchorage member dismantling device according to claim 1 and further comprising: the inner connecting ring is provided with a boss around the circumferential direction, the boss is provided with a plurality of through holes, the tooth ring is provided with a plurality of jacks around the circumferential direction, the jacks are in the same and one-to-one correspondence with the through holes in quantity, and the jacks are inserted with fixing bolts.
3. A stay cable anchorage member dismantling device according to claim 1 and further comprising: one end of each of the pull ropes, which is far away from the winch, is provided with a fixing clamp, each fixing clamp comprises two concave clamps which are symmetrically arranged in opposite directions, two convex ends of each concave clamp are provided with threaded through holes, and each pull rope is connected with one concave clamp.
4. A stay cable anchorage member dismantling device according to claim 3 and further comprising: the spill presss from both sides including diaphragm and the splint of setting in the diaphragm both sides, the inside cavity that has of diaphragm, be equipped with volute spiral spring and connecting wire in the cavity, volute spiral spring is fixed to be set up, the one end of connecting wire is connected with volute spiral spring, and the other end is worn out the cavity and is connected with splint.
5. A stay cable anchorage member dismantling device according to claim 3 and further comprising: the concave clamp is characterized in that an arc-shaped groove with a T-shaped cross section is formed in one side, away from each other, of the concave clamp in a circumferential direction, a T-shaped sliding rod in sliding connection is arranged in the arc-shaped groove, and the pull rope is detachably connected with the T-shaped sliding rod.
6. A stay cable anchorage ring dismounting device according to claim 5, characterized in that: threaded holes are formed in the T-shaped sliding rods, and connecting bolts are arranged at one ends of the pull ropes, which are far away from the winch.
7. A method for dismantling an anchor ring of a stay cable is characterized by comprising the following steps: a stay cable anchorage member dismantling device as claimed in any one of claims 1 to 6 and including the steps of:
1) The supporting leg bracket is fixedly arranged at the anchoring end of the stay cable;
2) The inclined stay cable is connected with the tensioning jack, and the tensioning jack is started to unload the inclined stay cable;
3) The gear is started to drive the gear to rotate, and the gear drives the gear ring and the inner connecting ring to rotate so as to screw out the anchor ring;
4) And removing the stay cable after the stay cable completely unloads the force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821495.4A CN113481890B (en) | 2021-07-20 | 2021-07-20 | Stay cable anchor ring dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821495.4A CN113481890B (en) | 2021-07-20 | 2021-07-20 | Stay cable anchor ring dismounting device |
Publications (2)
| Publication Number | Publication Date |
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| CN113481890A CN113481890A (en) | 2021-10-08 |
| CN113481890B true CN113481890B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110821495.4A Active CN113481890B (en) | 2021-07-20 | 2021-07-20 | Stay cable anchor ring dismounting device |
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| CN (1) | CN113481890B (en) |
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