Anchoring device for improving transverse stability of highway bridge girder erection machine
By using anchoring devices to lock the transverse track onto the erected side beams and secondary side beams, the stability problem caused by the cantilever state of the transverse track of the bridge erecting machine is solved, thereby improving the lateral stability and enhancing the safety of the bridge erecting machine.
Patent Information
- Application Number
- CN202511372292.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2025-11-18
AI Technical Summary
When a highway bridge erecting machine moves laterally on the lateral track, the outriggers may extend beyond the outer support point, resulting in a cantilever state, which reduces lateral stability and can easily lead to rollover accidents.
Design an anchoring device including an upper fixed base, an anchoring beam, a nut, and an anchor rod. The anchor rod securely locks the transverse track to the erected side beam and secondary side beam to ensure stability.
It improves the lateral stability of the highway bridge erecting machine during the side beam erection process, reduces safety risks, avoids overturning, and is simple to operate and easy to manufacture.
Smart Images

Figure CN120967828A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bridge erecting machine technology, and in particular to an anchoring device for increasing the lateral stability of highway bridge erecting machines. Background Technology
[0002] When erecting side beams with a highway bridge erecting machine, the machine is usually moved laterally above the lateral track. However, this method can sometimes be thwarted by human error or by the outriggers of the machine extending beyond the outer support point of the lateral track when erecting the outer side beams of a curve. This causes the lateral track to be in a cantilevered state, reducing the lateral stability of the machine and making it highly susceptible to lateral rollover, thus leading to an accident.
[0003] Therefore, it is necessary to develop an anchoring device to increase the lateral stability of highway bridge erecting machines to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to design an anchoring device to increase the lateral stability of a highway bridge erecting machine in order to solve the above problems.
[0005] The present invention achieves the above objectives through the following technical solutions: An anchoring device for increasing the lateral stability of a highway bridge erecting machine, comprising: Upper fixed base; the upper fixed base is installed on the transverse track of the bridge erecting machine; Anchor beam; both the upper fixed base and the anchor beam are provided with through holes running vertically through the top and bottom. Four nuts; Anchor bolt; four nuts are threaded into the anchor bolt; the upper part of the anchor bolt passes through the through hole of the upper fixed base, and two of the nuts are respectively tightened against the upper and lower surfaces of the upper fixed base; the lower part of the anchor bolt passes through the through hole of the anchoring beam, and the other two nuts are respectively tightened against the upper and lower surfaces of the anchoring beam; the upper ends of the anchoring beam are respectively attached to the lower parts of the erected side beam and the lower parts of the erected secondary side beam, and the anchor bolt passes through the gap between the erected side beam and the erected secondary side beam.
[0006] The beneficial effects of this invention are as follows: The device, with its fixed base, anchor bolts, and anchoring beams, securely locks and anchors the transverse track to the erected side beams and secondary side beams. Regardless of the bridge erecting machine's position on the transverse track, it remains stable and will not tip over, nor will the bridge erecting machine experience lateral overturning. This device effectively improves the lateral stability of the highway bridge erecting machine during side beam erection, reducing safety risks. Furthermore, this application features a simple structure, convenient operation, and low manufacturing difficulty. Attached Figure Description
[0007] Figure 1This is a front view of the anchoring device for increasing the lateral stability of a highway bridge erecting machine as described in this invention; Figure 2 This is a side view of the anchoring device for increasing the lateral stability of a highway bridge erecting machine as described in this invention; Figure 3 This is a front view of the anchoring device for increasing the lateral stability of a highway bridge erecting machine as described in this invention, in its usage state. Figure 4 This is a side view of the anchoring device for increasing the lateral stability of a highway bridge erecting machine as described in this invention, in its usage state.
[0008] In the diagram, 1-upper fixed base, 2-anchor rod, 3-lifting lug, 4-anchoring beam, 5-waist plate, 6-nut, 7-hemp rope, 8-lateral track, 9-existing side beam, 10-existing secondary side beam, 11-lateral track steel support, 12-bridge erecting machine leg, 13-cap beam. Detailed Implementation
[0009] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0010] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0011] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0012] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0013] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0014] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0015] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0016] like Figure 1-4 As shown, an anchoring device for increasing the lateral stability of a highway bridge erecting machine includes: Upper fixed base 1; Upper fixed base 1 is welded to the transverse track 8 of the bridge erecting machine. The setting of upper fixed base 1 does not affect the movement of the bridge erecting machine on the transverse track 8. Anchor beam 4; both the upper fixed base 1 and the anchor beam 4 are provided with through holes running vertically through the top and bottom. Four nuts 6; Anchor rod 2; four nuts 6 are threadedly engaged with anchor rod 2; the upper part of anchor rod 2 passes through the through hole of upper fixed base 1, and two of the nuts 6 are respectively tightened against the upper and lower surfaces of upper fixed base 1 (fixing the connection between upper fixed base 1 and anchor rod 2); the lower part of anchor rod 2 passes through the through hole of anchor beam 4, and the other two nuts 6 are respectively tightened against the upper and lower surfaces of anchor beam 4 (fixing the connection between anchor beam 4 and anchor rod 2); the upper ends of anchor beam 4 are respectively attached to the lower part of the erected side beam 9 and the lower part of the erected secondary side beam 10, and anchor rod 2 passes through the gap between erected side beam 9 and erected secondary side beam 10.
[0017] like Figure 1-2 As shown, the anchoring device also includes four washers 5. Washers 5 are provided between the nut 6 and the upper and lower surfaces of the fixed base and the upper and lower surfaces of the anchoring beam 4.
[0018] like Figure 1-2 As shown, the anchoring device also includes multiple lifting lugs 3 and multiple hemp ropes 7. The multiple lifting lugs 3 are welded to the upper end of the anchoring beam 4 and are respectively located on both sides of the through hole on the anchoring beam 4. The first ends of the multiple hemp ropes 7 are respectively connected to the multiple lifting lugs 3. In some embodiments, there are four lifting lugs 3 and four hemp ropes 7. The four lifting lugs 3 are evenly distributed around the axis of the through hole on the anchoring beam 4. The purpose of setting four lifting lugs 3 and four hemp ropes 7 is to make the anchoring beam 4 more stable during lifting.
[0019] like Figure 1-2 As shown, anchor rod 2 is installed vertically. The upper fixed base 1, anchor rod 2, and anchor beam 4 are on the same center line to ensure reliable installation of anchor rod 2 and anchor beam 4.
[0020] like Figure 1-2 As shown, the length of the anchor beam 4 is slightly smaller than the gap between the web of the already erected side beam 9 and the web of the already erected secondary side beam 10. The upper slopes at both ends of the anchor beam 4 form a sloped fit with the lower slopes of the flange plates of the already erected side beam 9 and the lower slopes of the flange plates of the already erected secondary side beam 10. This structural design allows the anchor beam 4 to fit more firmly with the already erected side beam 9 and the already erected secondary side beam 10, making the connection more stable.
[0021] like Figure 3 and 4 As shown, the steel support 11 of the transverse track is installed on top of multiple erected beams; the bottom of the bridge erecting machine support leg 12 is equipped with a slider that slides on the transverse track, and multiple erected beams are erected on the cap beam 13.
[0022] Taking the DJ180t dual-purpose road and rail bridge erecting machine as an example, a specific implementation case is provided.
[0023] Before erecting the side beams, the DJ180t dual-purpose road-rail bridge erecting machine secures the anchor rods 2 and anchor beams 4 with washers 5 and nuts 6. The anchor rods 2 and anchor beams 4 are then suspended by ropes 7 using lifting lugs 3 and placed between the already erected side beams 9 and 10. The anchor rods 2 are then secured to the upper fixed base 1 with washers 5 and nuts 6. Two anchoring devices are installed on each side between the already erected side beams 9 and 10 to increase the lateral stability of the bridge erecting machine. These two anchoring devices are symmetrically distributed on both sides of the transverse track. The beam erection operation then begins. After the beam erection is completed, the washers 5 and nuts 6 connecting the upper fixed support 1 and the anchor rods 2 are removed. Then, using ropes 7 and lifting lugs 3, the anchor rods 2 and anchor beams 4 are pulled up from between the already erected side beams 9 and 10 and placed on the erected beam surface, completing one work cycle.
[0024] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. An anchoring device for increasing the lateral stability of a highway bridge erecting machine, characterized in that, include: Upper fixed base; the upper fixed base is installed on the transverse track of the bridge erecting machine; Anchor beam; both the upper fixed base and the anchor beam are provided with through holes running vertically through the top and bottom. Four nuts; Anchor bolts; Four nuts are threaded into the anchor rods; the upper part of the anchor rod passes through the through hole of the upper fixed base, and two of the nuts are respectively tightened against the upper and lower surfaces of the upper fixed base; the lower part of the anchor rod passes through the through hole of the anchor beam, and the other two nuts are respectively tightened against the upper and lower surfaces of the anchor beam; the upper ends of the anchor beam are respectively attached to the lower parts of the erected side beam and the lower parts of the erected secondary side beam, and the anchor rod passes through the gap between the erected side beam and the erected secondary side beam.
2. The anchoring device for increasing the lateral stability of a highway bridge erecting machine according to claim 1, characterized in that, The anchoring device also includes four washers, with washers placed between the nut and the upper and lower surfaces of the fixed base and the upper and lower surfaces of the anchoring beam.
3. The anchoring device for increasing the lateral stability of a highway bridge erecting machine according to claim 1, characterized in that, The anchoring device also includes multiple lifting lugs and multiple hemp ropes. The multiple lifting lugs are set at the upper end of the anchoring beam and are located on both sides of the through hole on the anchoring beam. The first end of the multiple hemp ropes is connected to the multiple lifting lugs respectively.
4. The anchoring device for increasing the lateral stability of a highway bridge erecting machine according to claim 1, characterized in that, The anchor bolts are installed vertically.
5. The anchoring device for increasing the lateral stability of a highway bridge erecting machine according to claim 1, characterized in that, The length of the anchor beam is slightly smaller than the gap between the web of the already erected side beam and the web of the already erected secondary side beam.
6. The anchoring device for increasing the lateral stability of a highway bridge erecting machine according to claim 1, characterized in that, The upper inclined surfaces at both ends of the anchor beam form an inclined surface fit with the lower inclined surfaces of the flange plates of the already erected side beams and the lower inclined surfaces of the flange plates of the already erected secondary side beams.