Curved Beam Jacking and Moving Device, Adjustment System and Adjustment Method

Abstract

The present invention provides a curved beam lifting and moving device, an adjustment system and an adjustment method. The lifting and moving device is used to be fixed on the pier supporting the curved beam, and includes a lifting box with an open top and a lifting cover located above the lifting box. The cover wall of the lifting cover is movably sleeved with the box wall of the lifting box, so as to form a lifting cavity between the lifting box and the lifting cover. A lifting device for driving the lifting cover to lift is arranged in the lifting cavity; two horizontal gear shafts are symmetrically arranged on both sides of the outer wall of the lifting cover, and the gear shafts are driven to rotate by motors. Two meshing gears are symmetrically arranged at both ends of each gear shaft. The tops of the two meshing gears located on the same side of the two gear shafts are meshed with a rack, and the rack is used to be fixed to the bottom of the curved beam. The use of the device of the present invention can simplify the process steps of moving the curved beam, shorten the adjustment time of the curved beam, and greatly reduce the adjustment cost of the curved beam.

Description

Technical Field

[0001] The present invention relates to the field of bridges, and more particularly to a curved beam jacking and moving device, an adjustment system and an adjustment method. Background Art

[0002] At present, highways have been built all over the country, and curved beams are required to connect the straight sections of highways. When the radius of the curved beam is small, affected by temperature difference or the impact force of vehicle turning, the curved beam will move outward. If this situation is ignored, serious damage is likely to occur at the connection between the curved beam and the straight beam, resulting in major accidents. If a specialized bridge repair company is invited, the vehicle traffic on the bridge section of the highway needs to be stopped, and the land under the bridge needs to be cleared. The construction time is long, and a large amount of manpower and material resources are required. This not only brings inconvenience to the passing vehicles, but also causes immeasurable direct and indirect economic losses. Therefore, a new method for adjusting the curved beam is needed. Summary of the Invention

[0003] The purpose of the present invention is to provide a curved beam jacking and moving device, an adjustment system and an adjustment method to solve the problems of complex adjustment methods for existing outward-moving curved beams and time-consuming and laborious processes.

[0004] The purpose of the present invention is achieved as follows: A curved beam jacking and moving device, the device body is used to be fixed on the pier supporting the curved beam, including a jacking box with an open top and a jacking cover located above the jacking box. The wall of the jacking cover is movably sleeved with the wall of the jacking box, so that a jacking cavity is formed between the jacking box and the jacking cover. In the jacking cavity, there is a jacking device for driving the jacking cover to lift and lower; on both sides of the outer wall of the jacking cover, two horizontal gear shafts are symmetrically arranged. The gear shafts are driven by motors to rotate. At both ends of each gear shaft, two meshing gears are symmetrically arranged. The tops of the two meshing gears on the same side of the two gear shafts are meshed with a rack, and the rack is used to be fixed to the bottom of the curved beam.

[0005] On the top of the jacking cover, there is a rolling ball groove. In the rolling ball groove, there are several vertical plates intersecting horizontally and vertically. The vertical plates divide the rolling ball groove into several square ball grooves. In each square ball groove, there is a central spherical ball. The diameter of the central spherical ball is greater than the depth of the square ball groove; on the tops of several central spherical balls, there is an auxiliary sliding plate. A return spring is connected between the edge of the auxiliary sliding plate and the upper edge of the wall of the rolling ball groove; the top surface of the rack is flush with the top surface of the auxiliary sliding plate.

[0006] On the vertical plate shared by two adjacent square ball grooves, a rolling spherical ball that is in contact with the central spherical balls in both adjacent square ball grooves is embedded. The center of the rolling spherical ball is on the same straight line as the centers of the two adjacent central spherical balls.

[0007] The auxiliary sliding plate is provided with a rubber coating.

[0008] The jacking device is a hydraulic jack, and one or more hydraulic jacks are provided and located directly below the jacking cover.

[0009] A curved beam adjustment system includes:

[0010] A positioning monitor, installed on the curved beam, for monitoring the position information of the curved beam and transmitting the position information to the central control terminal;

[0011] An alarm, controlled by the central control terminal, for emitting an alarm sound to prompt the staff to adjust the curved beam;

[0012] A central control terminal, for comparing the obtained position information of the curved beam with a set threshold value. When the set threshold value is exceeded, the central control terminal sends a control signal to make the alarm emit an alarm sound; and

[0013] A curved beam jacking and moving device, which is any one of the above-mentioned curved beam jacking and moving devices, for jacking and moving the curved beam.

[0014] A curved beam adjustment method includes the following steps:

[0015] a. Set up the above-mentioned curved beam adjustment system so that the positioning monitor on the curved beam monitors the curved beam. When the position of the curved beam exceeds the set threshold value, proceed to the next step;

[0016] b. The alarm emits an alarm sound. After the staff hears the alarm sound of the alarm, go to the site to check the offset distance of the curved beam, determine the moving direction and moving distance of the curved beam, and determine the adjustment time of the curved beam;

[0017] c. Install the curved beam jacking and moving device on the pier below the curved beam, install the rack on the bottom of the curved beam, and make the meshing transmission direction of the meshing gear and the rack consistent with the moving direction of the curved beam;

[0018] d. Start the jacking device of the curved beam jacking and moving device so that the auxiliary sliding plate at the top of the curved beam jacking and moving device contacts the bottom of the curved beam, and the jacking device continues to jack until the meshing gear meshes with the rack located at the bottom of the curved beam;

[0019] e. Start the motor. The motor drives the gear shaft to rotate, the gear shaft drives the meshing gears at both ends to rotate, the meshing gears at both ends mesh with the rack at the bottom of the curved beam for transmission, and the curved beam and the rack move synchronously in the intended moving direction;

[0020] f. When the moving distance of the curved beam is equal to the intended moving distance, turn off the motor and make the jacking end of the jacking device return to the initial position;

[0021] g. Finally, remove the curved beam lifting and moving device from the pier under the curved beam, and then carry out the subsequent reinforcement work on the curved beam.

[0022] Preferably, a plurality of the curved beam lifting and moving devices are provided, and one or more can be arranged on each pier under the curved beam.

[0023] Preferably, the adjustment time of the curved beam is selected between 2 am and 5 am.

[0024] In the present invention, a position detector is arranged on the curved beam to detect the offset of the curved beam. When the offset amount of the curved beam exceeds the set threshold, the alarm sounds to notify the staff to adjust the curved beam. When adjusting the curved beam in the present invention, a curved beam lifting and moving device is arranged on the pier under the curved beam to adjust the curved beam. The curved beam lifting and moving device includes a lifting box at the top and a lifting cover located above the lifting box. A lifting device is arranged between the lifting box and the lifting cover. The lifting of the curved beam is realized by the lifting of the lifting device. A rack is installed at the bottom of the lifted curved beam, and the rack meshes with the meshing gear on the gear shaft outside the lifting cover. The motor drives the meshing gear shaft to rotate, and the meshing gear meshes with the rack to drive the curved beam and the rack to move synchronously, thereby realizing the adjustment of the curved beam.

[0025] The present invention is easy to implement, can simplify the process steps of moving the curved beam, shorten the adjustment time of the curved beam, and greatly reduce the adjustment cost of the curved beam. In addition, the present invention can monitor the position of the curved beam, can timely notify the staff to adjust the offset curved beam, and can avoid the problem of excessive offset of the curved beam causing major accidents. Description of the Drawings

[0026] Figure 1 is the front view structural schematic diagram of the curved beam lifting and moving device.

[0027] Figure 2 is the left view structural schematic diagram of the curved beam lifting and moving device.

[0028] Figure 3 is the top view structural schematic diagram of the whole lifting cover of the curved beam lifting and moving device.

[0029] Figure 4 is the meshing structural schematic diagram of the meshing gear and the rack.

[0030] Figure 5 In (a), it is the schematic diagram of the position relationship before the displacement of the curved beam relative to the pier, and (b) is the schematic diagram of the position relationship after the displacement of the curved beam relative to the pier.

[0031] In the figure: 1. Auxiliary sliding plate; 2. Central spherical ball; 3. Meshing gear; 4. Motor; 5. Hydraulic jack; 6. Lifting cover; 7. Rolling spherical ball; 8. Return spring; 9. Vertical plate; 10. Lifting box; 11. Gear shaft; 12. Bent beam; 13. Rack; 14. Bridge pier. Detailed implementation mode

[0032] Embodiment 1: A device for lifting and moving a bent beam.

[0033] As Figures 1 to 4 shown, when in use, the present invention is fixed on the bridge pier 14 supporting the bent beam 12. The device for lifting and moving the bent beam includes a lifting box 10 and a lifting cover 6 located above the lifting box 10. The lifting box 10 is a box structure with an open upper part, used to contain the lifting components that lift in the opening direction. The lifting cover 6 is a cover structure with an open lower part. The lifting cover 6 covers the upper part of the lifting box 10, and the cover wall of the lifting cover 6 is movably sleeved with the box wall of the lifting box 10. In this way, a lifting cavity is formed between the lifting box 10 and the lifting cover 6, and the lifting components are arranged in this lifting cavity. The lifting end of the lifting components contacts the lifting cover 6, driving the lifting cover 6 to lift and lower in the vertical direction. The sleeved structure between the cover wall of the lifting cover 6 and the box wall of the lifting box 10 can limit the lifting cover 6 and prevent the lifting cover 6 from separating from the lifting box 10. In this embodiment, the cover wall of the lifting cover 6 is located outside the box wall of the lifting box 10.

[0034] As Figures 1 to 3 shown, on both sides of the outer wall of the lifting cover 6, two horizontally arranged gear shafts 11 are symmetrically provided. The gear shafts 11 are driven to rotate by a motor 4 arranged on the outer wall of the lifting cover 6. At both ends of each gear shaft 11, two meshing gears 3 are symmetrically provided. The tops of the meshing gears 3 on the same side of the two gear shafts 11 are meshed with the same rack 13. The rack 13 is fixed to the bottom of the bent beam 12, as Figure 4 shown.

[0035] As Figures 1 to 3 shown, the present invention is provided with a rolling ball groove at the top of the lifting cover 6. In the rolling ball groove, a number of vertically and horizontally intersecting vertical plates 9 are provided. The number of vertical plates 9 divides the rolling ball groove into a number of square ball grooves. In each square ball groove, a central spherical ball 2 is provided. The diameter of the central spherical ball 2 is greater than the depth of the square ball groove. At the tops of the number of central spherical balls 2, an auxiliary sliding plate 1 is provided. A return spring 8 is connected between the edge of the auxiliary sliding plate 1 and the upper edge of the groove wall of the rolling ball groove. The top surface of the rack 13 is flush with the top surface of the auxiliary sliding plate 1. In this way, it can be ensured that after the bent beam 12 is lifted, the rack 13 can achieve good meshing transmission with the meshing gear 3.

[0036] The setting of the central spherical ball 2 can reduce the effect of friction, so as to facilitate the curved beam to slide along with the auxiliary sliding plate. In order to further reduce the frictional force, in the present invention, a rolling spherical ball 7 that can roll and is in contact with the central spherical balls 2 in two adjacent square ball grooves at the same time is embedded on the vertical plate 9 shared by two adjacent square ball grooves. The center of the rolling spherical ball 7 and the centers of two adjacent central spherical balls 2 are on the same straight line, so that rolling friction can replace surface friction.

[0037] In addition, a rubber coating is made on the upper surface of the auxiliary sliding plate 1 in the present invention to increase the frictional force between the auxiliary sliding plate 1 and the curved beam 12, and to ensure that there is no relative sliding between the curved beam 12 and the auxiliary sliding plate 1 during the movement of the curved beam 12.

[0038] The lifting device in the present invention is a hydraulic jack 5. One or more hydraulic jacks 5 can be arranged in a jacking box 10, and one or more hydraulic jacks 5 are evenly arranged directly below the jacking cover 6 to provide a uniform jacking force for lifting the jacking cover 6.

[0039] Embodiment 2: A curved beam adjustment system.

[0040] This embodiment provides a system applicable to the adjustment of bridge curved beams. The system includes a positioning detector, an alarm, a central control terminal, and a curved beam jacking and moving device. The positioning detector is installed on the curved beam 12 to monitor the position information of the curved beam, and then transmit the position information to the central control terminal. The alarm is controlled by the central control terminal and is used to emit an alarm sound to prompt the staff to adjust the curved beam 12. The alarm is generally installed in the studio where the staff works. The central control terminal is used to compare the obtained position information of the curved beam with a preset threshold. When the obtained position information exceeds the set threshold, the central control terminal issues a control signal, and the alarm receives the control signal and emits an alarm sound.

[0041] The positioning detector in this embodiment is actually a positioning detector sold on the market. It emits rays from one end to the receiving end at the other end. The receiving end obtains the position information of the curved beam 12 according to the receiving position of the rays, and transmits the position information to the central control terminal through wireless technology. The central control terminal compares the obtained position information of the curved beam 12 with a preset threshold. When it exceeds the set threshold range, the central control terminal triggers the circuit of the alarm to make the alarm emit an alarm sound to prompt the staff to carry out the adjustment work of the curved beam 12.

[0042] For the specific structure of the curved beam jacking and moving device, refer to Embodiment 1 and no more description will be given here. The curved beam jacking and moving device is provided with several according to the size of the curved beam, and one or more are arranged on each pier 14 under the curved beam 12.

[0043] Embodiment 3: A curved beam adjustment method.

[0044] The adjustment method of this embodiment is applicable to the adjustment method of curved beams of bridges. As Figure 5 described, this method is to adjust the curved beam with displacement in (b) to the initial state shown in Figure (a). The specific steps are as follows:

[0045] S1. Implement the curved beam adjustment system in Embodiment 2. Generally, after the bridge is built, the positioning monitor is installed on the curved beam 12, so that the positioning monitor monitors the position of the curved beam 12. The positioning monitor transmits the position information to the central control terminal. The central control terminal compares the obtained position information of the curved beam 12 with a preset threshold. When the position of the curved beam 12 exceeds the set threshold, the next step is executed;

[0046] S2. The central control terminal controls the alarm to emit an alarm sound. After the staff hears the alarm sound of the alarm, they go to the scene to check the offset distance of the curved beam, so as to determine the moving direction and moving distance of the curved beam, and determine the specific adjustment time of the curved beam 12. Generally, the adjustment time is selected between 2 am and 5 am, because there are few vehicles during this period, which can reduce the impact on traffic;

[0047] S3. Install the curved beam lifting and moving device on the pier 14 under the curved beam. In this step, there are multiple curved beam lifting and moving devices, and one or more can be set on each pier 14 under the curved beam 12; install the rack 13 at the bottom of the curved beam 12, and make the meshing direction of the meshing gear 3 and the rack 13 consistent with the moving direction of the curved beam 12 to ensure that the curved beam 12 moves in the adjustment direction driven by the rack 13;

[0048] S4. Start the hydraulic jack 5 of the curved beam lifting and moving device, so that the auxiliary sliding plate 1 at the top of the curved beam lifting and moving device can contact the bottom of the curved beam 12. The hydraulic jack 5 continues to lift until the meshing gear meshes with the rack located at the bottom of the curved beam 12; in this step, the central spherical ball 2 is the main force-bearing component. When the lifting starts, the central spherical balls 2 in several curved beam lifting and moving devices jointly support the curved beam 12 through the auxiliary sliding plate 1. The meshing gear 3 does not bear the vertical pressure, but just meshes with the rack 13 on the bottom surface of the curved beam 12 to provide the horizontal driving force;

[0049] S5. Start the motor. The motor drives the gear shaft 11 to rotate. The gear shaft 11 drives the meshing gears 3 at both ends to rotate synchronously. The meshing gears 3 at both ends are meshed with and drive the rack 13 at the bottom of the curved beam 12, causing the rack 13 to slide in the direction of the movement of the curved beam; since the rack 13 is fixed on the curved beam 12, the upper surface of the auxiliary sliding plate 1 is provided with a rubber coating, and the frictional force between the auxiliary sliding plate 1 and the central spherical ball 2 is less than the frictional force between the auxiliary sliding plate 1 and the curved beam 12. The rack 13 drives the curved beam 12 to slide, and the curved beam 12 will drive the auxiliary sliding plate 1 to slide on the central spherical ball 2; in this embodiment, the auxiliary sliding plate 1 is generally a steel plate, and the central spherical ball 2 is generally a steel ball. The frictional force between the steel plate and the steel ball is small, which is conducive to the sliding adjustment of the curved beam 12.

[0050] S6. When the moving distance of the curved beam 12 is equal to the planned moving distance, turn off the motor that drives the gear shaft 11 to rotate, so that the jacking end of the jacking device returns to the initial position, separate the meshing gear 3 from the rack 13, and separate the auxiliary sliding plate 1 from the bottom of the curved beam 12. After separation, the auxiliary sliding plate 1 returns to the initial position under the action of the return spring 8.

[0051] S7. Finally, remove the curved beam jacking and moving device from the pier 14 under the curved beam 12, and then carry out the subsequent reinforcement work on the curved beam 12.

Claims

1. A curved beam jacking and moving device, characterized in that, The bent beam lifting and moving device is used to be fixed on the pier supporting the bent beam, and includes a lifting box with an open top and a lifting cover located above the lifting box. The wall of the lifting cover is movably sleeved with the wall of the lifting box, so that a lifting cavity is formed between the lifting box and the lifting cover. In the lifting cavity, there is a lifting device for driving the lifting cover to lift and lower; on both sides of the outer wall of the lifting cover, two horizontal gear shafts are symmetrically arranged. The gear shafts are driven to rotate by motors. At both ends of each gear shaft, two meshing gears are symmetrically arranged. The tops of the two meshing gears on the same side of the two gear shafts are engaged with a rack, and the rack is used to be fixed on the bottom of the bent beam; On the top of the lifting cover, there is a rolling ball groove. In the rolling ball groove, there are several vertical plates arranged horizontally and vertically. The vertical plates divide the rolling ball groove into several square ball grooves. In each square ball groove, there is a central spherical ball. The diameter of the central spherical ball is greater than the depth of the square ball groove; on the tops of several central spherical balls, there is an auxiliary sliding plate. A return spring is connected between the edge of the auxiliary sliding plate and the upper edge of the groove wall of the rolling ball groove; the top surface of the rack is flush with the top surface of the auxiliary sliding plate; on the vertical plate shared by two adjacent square ball grooves, there is a rolling spherical ball that is in contact with the central spherical balls in the two adjacent square ball grooves at the same time. The center of the rolling spherical ball is on the same straight line as the centers of the two adjacent central spherical balls.

2. The curved beam lifting and moving device according to claim 1, characterized in that, The auxiliary sliding plate is provided with a rubber coating.

3. The curved beam lifting and moving device according to claim 1, characterized in that, The lifting device is a hydraulic jack. One or more hydraulic jacks are provided and are located directly below the lifting cover.

4. A curved beam adjustment system, characterized in that Comprising: A positioning monitor, which is installed on the bent beam, is used to monitor the position information of the bent beam, and transmit the position information to the central control terminal; An alarm, which is controlled by the central control terminal, is used to emit an alarm sound to prompt the staff that the bent beam needs to be adjusted; A central control terminal, which is used to compare the obtained position information of the bent beam with a set threshold. When the set threshold is exceeded, the central control terminal sends a control signal to make the alarm emit an alarm sound; And The bent beam lifting and moving device, which is the bent beam lifting and moving device according to any one of claims 1 to 3, is used to lift and move the bent beam.

5. A curved beam adjustment method, characterized in that, Comprising the following steps: a. Set up the bent beam adjustment system described in claim 4, so that the positioning monitor on the bent beam monitors the bent beam. When the position of the bent beam exceeds the set threshold, then proceed to the next step; b. The alarm emits an alarm sound. After the staff hears the alarm sound of the alarm, they go to the site to check the offset distance of the bent beam, determine the moving direction and moving distance of the bent beam, and determine the adjustment time of the bent beam; c. Install the bent beam lifting and moving device on the pier under the bent beam, install the rack on the bottom of the bent beam, and make the meshing transmission direction of the meshing gears and the rack consistent with the moving direction of the bent beam; d. Start the lifting device of the bent beam lifting and moving device, so that the auxiliary sliding plate on the top of the bent beam lifting and moving device is in contact with the bottom of the bent beam. The lifting device continues to lift until the meshing gears are engaged with the rack located at the bottom of the bent beam; e. Start the motor. The motor drives the gear shaft to rotate, and the gear shaft drives the meshing gears at both ends to rotate. The meshing gears at both ends mesh with the rack at the bottom of the curved beam for transmission, and the curved beam and the rack move synchronously in the intended moving direction. f. When the moving distance of the curved beam is equal to the intended moving distance, turn off the motor and restore the jacking end of the jacking device to its initial position. g. Finally, remove the curved beam jacking and moving device from the pier under the curved beam, and then carry out the subsequent strengthening work on the curved beam.

6. The bending beam adjustment method according to claim 5, characterized in that There are multiple curved beam jacking and moving devices, and one or more are arranged on each pier under the curved beam.

7. The bending beam adjustment method according to claim 5, characterized in that, The adjustment time of the curved beam is selected between 2:00 am and 5:00 am.

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