Bridge swivel construction equipment with deviation rectifying effect

Abstract

The utility model discloses bridge swivel construction equipment with a deviation rectifying effect, which relates to the field of infrastructure construction and comprises a lower bearing seat, electromagnetic coils and strain gauges, magnets are arranged on a slideway, the electromagnetic coils are arranged on supporting legs, magnetic counterforce is applied to the supporting legs through a magnetic field generated by the electromagnetic coils, the strain gauges are uniformly arranged on the supporting legs, and the stress of the supporting legs is measured. A strain gauge and an electromagnetic coil circuit are led below an upper rotating disc traction cable, a console is arranged to monitor the stress of the supporting feet in the whole rotating process, when the compressive stress of one supporting foot is too large, the magnetic reaction force of the supporting foot adjacent to the supporting foot and the magnetic attraction force of the supporting foot opposite to the supporting foot are increased by changing the current of the electromagnetic coil, and then the stress of the supporting feet is adjusted. Secondly, when the eccentric distance does not meet the requirement and the eccentric distance of the swivel beam needs to be adjusted, the needed magnetic counter force is calculated according to the measured eccentric distance, the current of the electromagnetic coil is adjusted to adjust the magnetic counter force, the eccentric distance is adjusted to be within 5-15 cm, the stability of the swivel beam is guaranteed, and the effect of rectifying deviation during bridge construction is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to infrastructure construction field, concretely is bridge construction equipment of swivel with rectification effect. BACKGROUND

[0002] The swivel bridge rotates mainly by the aid of the jack, through the steel strand in the traction turntable, and the ball hinge is completed as the key under the action of force, the key of the swivel construction is the stability in the swivel process and the swivel accurate dragon, the key of the swivel smooth start is to overcome the friction torque of ball hinge and support foot, in order to guarantee the stability of the beam body in the rotating process, after the swivel beam is removed, need to do the counterweight test, adjust the eccentricity (unbalanced moment) of swivel beam, if the eccentricity is greater than 15cm or less than 5cm, need to arrange the counterweight block on the beam body, adjust the eccentricity within 5~15cm.

[0003] But the present swivel construction process needs to provide larger traction to overcome the friction torque of ball hinge and support foot, so as to start the swivel smoothly, the traction equipment may not start the swivel, at this moment, need to start the traction system by the aid of the push system, after the swivel beam is removed, need to do the counterweight test, adjust the eccentricity (unbalanced moment) of swivel beam, if the eccentricity is greater than 15cm or less than 5cm, need to arrange the counterweight block on the beam body, adjust the eccentricity within 5~15cm, arrange the counterweight block and increase the rotating friction, increase the swivel start traction, make the automatic rectification effect of bridge construction not high.

[0004] Therefore, in view of the above, the existing structure is studied and improved, and the bridge swivel construction equipment with rectification effect is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of bridge swivel construction equipment with rectification effect, to solve the problem that the traction equipment may not start the swivel as described in the above background art, and the counterweight block leads to the increase of swivel start traction, so that the automatic rectification effect of bridge construction is not good.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of bridge swivel construction equipment with rectification effect, including lower bearing, the upper outer wall of the lower bearing is provided with ball hinge, the upper outer wall of the ball hinge is provided with upper turntable, the top of the upper turntable is provided with main girder, the top of the upper turntable is provided with traction cable located below main girder, the upper outer wall of the lower bearing is fixedly connected with slide, the inner side wall of the slide is attached with support foot, the inside of the support foot is provided with electromagnetic coil, the bottom of the slide is provided with strong magnet, the outer wall of the support foot is provided with strain gauge, the bottom of the traction cable is provided with connection line, one end of the connection line is fixedly connected with control console.

[0007] Further, the support legs are provided with eight groups, the eight groups of the support legs are arranged perpendicularly to the lower bearing, and the electromagnetic coil and the strain gauge are arranged in one-to-one correspondence between the support legs.

[0008] Further, the electromagnetic coil and the strain gauge are electrically connected with the control console.

[0009] Further, the strain gauge and the electromagnetic coil circuit are arranged below the traction cable of the upper turntable and are electrically connected with the adjacent control console.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model discloses a strain gauge and the arrangement of electromagnetic coil, arrange the magnet in the slide, arrange the electromagnetic coil to the support leg, and the magnetic field generated by electromagnetic coil applies the magnetic reaction force to the support leg, and the support leg is uniformly arranged the strain gauge, measures the stress of support leg, and the strain gauge and the electromagnetic coil circuit are arranged below the traction cable of the upper turntable, and the control console is arranged on the side, and the control coil current size is controlled, and the stress of support leg in the whole process of monitoring the body of rotation is monitored, so as to judge the inclination of beam body in the rotation process, when the stress of certain support leg is too large, the magnetic reaction force of the adjacent support leg of the support leg and the magnetic attraction of the opposite side support leg are increased by changing the electromagnetic coil current, and then the stress of support leg is adjusted, and when the eccentricity does not meet the requirement, the eccentricity of the body of rotation beam needs to be adjusted, the magnetic reaction force required according to the eccentricity calculated by measurement is adjusted, the magnetic reaction force is adjusted by adjusting the current of electromagnetic coil, so that the eccentricity is adjusted within 5-15cm, the stability of the body of rotation beam is guaranteed, and the effect of convenient deviation correction during bridge construction is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole structure schematic diagram of the body of rotation equipment;

[0013] Figure 2 It is the first adjustment working state structure schematic diagram;

[0014] Figure 3 It is the second adjustment working state structure schematic diagram;

[0015] Figure 4 It is the third adjustment working state structure schematic diagram;

[0016] Figure 5 It is the fourth adjustment working state structure schematic diagram.

[0017] In the drawing: 1, lower bearing;2, spherical hinge;3, upper turntable;4, main beam;5, traction cable;6, support leg;7, electromagnetic coil;8, strain gauge;9, connecting circuit;10, control console;11, slide;12, strong magnet. DETAILED DESCRIPTION

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figures 1-5 As shown, a bridge rotation construction device with a correction effect includes a lower support 1, a ball joint 2 on the upper outer wall of the lower support 1, an upper turntable 3 on the upper outer wall of the ball joint 2, a main beam 4 on the top of the upper turntable 3, a traction cable 5 located below the main beam 4 on the top of the upper turntable 3, a slide rail 11 fixedly connected to the upper outer wall of the lower support 1, a support leg 6 attached to the inner side wall of the slide rail 11, an electromagnetic coil 7 inside the support leg 6, a strong magnet 12 at the bottom of the slide rail 11, a strain gauge 8 on the outer wall of the support leg 6, a connecting line 9 at the bottom of the traction cable 5, and a control console 10 fixedly connected to one end of the connecting line 9.

[0020] Furthermore, the support legs 6 are provided in eight sets, with the eight sets of support legs 6 set perpendicular to the lower support 1. The electromagnetic coils 7 and strain gauges 8 are all set in a one-to-one correspondence with the support legs 6, which is conducive to the convenient correction of the bridge's offset position.

[0021] Furthermore, the electromagnetic coil 7 and strain gauge 8 are electrically connected to the control console 10, which facilitates convenient adjustment of the stress on the magnet.

[0022] Furthermore, the strain gauge 8 and the electromagnetic coil 7 are connected to the traction cable 5 of the upper turntable 3 and electrically connected to the adjacent control console 10. This arrangement facilitates the adjustment of the T-beam's balance by connecting the strain gauge 8 and the electromagnetic coil 7 to the traction cable 5 of the upper turntable 3. It also reduces the contact stress between the ball joints 2, lowers the static friction resistance at the moment of rotation start-up, avoids the need for a booster system to increase labor and time costs, and prevents the rotation from failing to start smoothly.

[0023] Working principle: When using this bridge rotation construction equipment with correction effect, firstly, magnets are arranged in the slide 11 and electromagnetic coils 7 are arranged in the support legs 6. The magnetic field generated by the electromagnetic coils 7 applies magnetic reaction force to the support legs 6.

[0024] Second, the strain gauge 8 is arranged on all the support legs 6 to measure the stress of the support legs 6, the strain gauge 8 and the electromagnetic coil 7 are led under the traction cable 5 of the upper turntable 3, a control console 10 is arranged beside to control the current of the coil, the stress of the support legs 6 in the whole process of the rotation is monitored, so that the inclination of the beam body in the rotation process is judged, when the stress of a support leg 6 is too large, the magnetic repulsion of the adjacent support leg of the support leg 6 and the magnetic attraction of the opposite support leg of the support leg 6 are increased by changing the current of the electromagnetic coil, and then the stress of the support leg 6 is adjusted;

[0025] Third, when the eccentricity does not meet the requirements and the eccentricity of the rotating beam needs to be adjusted, the required magnetic repulsion is calculated according to the measured eccentricity, the magnetic repulsion is adjusted by adjusting the current of the electromagnetic coil 7, so that the eccentricity is adjusted within 5-15 cm, the stability of the rotating beam is ensured, and the effect of convenient deviation correction in the bridge construction is achieved.

[0026] Fourth, the magnet is buried under the slide 11, and the electromagnetic coil 7 is arranged in the support leg 6, the electromagnetic coil 7 generates a magnetic field when electrified, which is equivalent to an imaginary magnet, the larger the current, the stronger the magnetic field, the imaginary magnet has directionality, repulsion is generated when the same polarity is opposite, and attraction is generated when the different polarity is opposite, the size and direction of the interaction force between the support leg 6 and the slide 11 are changed by adjusting the size and direction of the current of the coil in the support leg 6.

[0027] Finally, when the eccentricity e is greater than 15 cm, it is equivalent to that the force of the side span downward is too large, the magnetic repulsion of the side span support leg 6 and the magnetic attraction of the midspan support leg 6 are increased, so that e is reduced, when e is less than 5 cm, it is equivalent to that the force of the side span downward is too small, the magnetic repulsion of the midspan support leg 6 and the magnetic attraction of the side span support leg 6 are increased, so that e is increased, the contact stress between the support leg 6 and the slide 11 is monitored and adjusted, the eccentricity of the T-shaped beam is adjusted, the stability in the process of the rotation is ensured, and the arrangement of the counterweight is avoided, the indirect contact stress between the ball hinge 2 and the rotation friction torque are avoided.

[0028] This is the working principle of the bridge rotating construction equipment with deviation correction effect.

[0029] The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and enable those skilled in the art to understand the utility model to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A bridge swivel construction equipment with a deviation rectifying effect, comprising a lower bearing seat (1), characterized in that, The upper outer wall of the lower support (1) is provided with a spherical hinge (2), the upper outer wall of the spherical hinge (2) is provided with an upper turntable (3), the top of the upper turntable (3) is provided with a main beam (4), the top of the upper turntable (3) is provided with a traction cable (5) below the main beam (4), the upper outer wall of the lower support (1) is fixedly connected with a slide (11), the inner side wall of the slide (11) is attached with a supporting leg (6), the inside of the supporting leg (6) is provided with an electromagnetic coil (7), the bottom of the slide (11) is provided with a strong magnet (12), the outer wall of the supporting leg (6) is provided with a strain gauge (8), the bottom of the traction cable (5) is provided with a connecting line (9), one end of the connecting line (9) is fixedly connected with a control console (10).

2. The bridge swivel construction equipment with a deviation rectifying effect according to claim 1, characterized in that, The supporting leg (6) is provided with eight groups, eight groups of the supporting leg (6) are perpendicular to the lower support (1), and the electromagnetic coil (7) and the strain gauge (8) are one-to-one corresponding to the supporting leg (6).

3. The bridge swivel construction equipment with a deviation rectifying effect according to claim 1, characterized in that, The electromagnetic coil (7) and the strain gauge (8) are electrically connected with the control console (10).

4. The bridge swivel construction equipment with a deviation rectifying effect according to claim 1, characterized in that, The strain gauge (8) and the electromagnetic coil (7) are arranged below the traction cable (5) of the upper turntable (3), and are electrically connected with the adjacent control console (10).

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