A counter-hanging device for a side-hoisting beam working condition of a bridge girder erection machine

Abstract

The utility model relates to a kind of for the counter-hanging device of bridge girder crane side beam working condition, relate to bridge girder crane technical field, solve the technical problem that anchoring is not firm when artificial anchoring, including longitudinal guide beam, cross guide beam and trolley, the top of the trolley is fixedly connected with fixed seat, the top of the fixed seat is fixedly connected with lifting oil cylinder, the top of the lifting oil cylinder is provided with connecting assembly, the connecting assembly includes the connecting crossbeam that can be lifted, two side installation grooves and middle installation groove are set in the bottom of the connecting crossbeam, the bottom both sides of the connecting crossbeam are provided with counter-hanging hook, two the counter-hanging hook is located at the both sides of longitudinal guide beam respectively.The utility model is anchored to the cross guide beam below, so that cross guide beam and trolley are fixed as a whole, by constraining the motion trail of counter-hanging hook in the process of descending, ensure that counter-hanging hook always moves back and forth on the same trail.

Description

Technical Field

[0001] This utility model relates to the field of bridge erecting machine technology, specifically a reverse hanging device for the side-suspending beam operation of a bridge erecting machine. Background Technology

[0002] Bridge erecting machines are used to erect prestressed reinforced concrete beams for highway bridges. When a double-guide beam bridge erecting machine is lifting beams from the side, in order to prevent the bridge erecting machine from becoming unstable, the transverse guide beam trolley body and the longitudinal guide beam must be anchored first.

[0003] Most existing double-guide beam bridge erecting machines use a horizontal guide beam trolley external suspension fixing seat anchored to the two lower chords of the longitudinal guide beam via precision-rolled threaded steel bars.

[0004] The existing method of anchoring threaded steel bars manually not only increases the number of anchoring steps and the workload of workers, but also makes it impossible to guarantee the quality of anchoring.

[0005] Based on this, the present invention provides a reverse hanging device for the side-lifting beam operation of a bridge erecting machine to solve the above problems. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a reverse hanging device for the side-lifting beam of a bridge erecting machine. This utility model has a novel structure and ingenious design, and effectively solves the technical problem of unstable anchoring during manual anchoring.

[0007] A reverse-hanging device for side-lifting beam operation of a bridge erecting machine includes a longitudinal guide beam, a transverse guide beam, and a trolley. The trolley is located between the longitudinal and transverse guide beams and is fixedly connected to the bottom of the transverse guide beam. A fixed seat is fixedly connected to the top of the trolley, and a lifting cylinder is fixedly connected to the top of the fixed seat. A connecting assembly is provided on the top of the lifting cylinder. The connecting assembly includes a lifting-capable connecting crossbeam. Two side mounting slots and a center mounting slot are provided at the bottom of the connecting crossbeam. Reverse-hanging hooks are provided on both sides of the bottom of the connecting crossbeam. The two reverse-hanging hooks are located on both sides of the longitudinal guide beam and respectively cooperate with the lower chords on both sides of the longitudinal guide beam.

[0008] Preferably, the lifting cylinder is installed at the center of the trolley, and the output end of the lifting cylinder is fixedly connected to the central mounting groove by a cylinder pin.

[0009] Preferably, both side mounting slots are rotatably connected to a primary connecting frame via hook pins, and the bottoms of both primary connecting frames are fixedly connected to a secondary connecting frame via fixing bolts. The two reverse hooks are respectively fixedly connected to the bottoms of the two secondary connecting frames.

[0010] Preferably, two hook lugs are fixedly connected to both sides of the trolley, and a limit pin is fixedly connected to the two hook lugs on one side of the trolley.

[0011] Preferably, the primary connecting frame is located between two hook lugs, and each of the two primary connecting frames has a limiting groove, with the limiting pin slidably connected in the limiting groove on the primary connecting frame.

[0012] Preferably, a maintenance platform is provided on one side of the trolley, a traveling wheel is fixedly connected to the bottom of the trolley, the traveling wheel rolls in contact with the top of the longitudinal guide beam, a drive gear is fixedly connected to one side of the traveling wheel, a rack and pinion guide is fixedly connected to the top of the longitudinal guide beam, and the drive gear engages with the rack and pinion guide.

[0013] The present invention has the following technical effects.

[0014] 1. This utility model uses a lifting cylinder, a connecting crossbeam, and a reverse hook to anchor the lower crossbeam, thereby fixing the crossbeam and the trolley into a whole. Through the hook ear plate, the limiting pin and the limiting groove, the movement trajectory of the reverse hook can be constrained during the descent, ensuring that the reverse hook always moves back and forth on the same trajectory, and better cooperates with the anchoring operation of the crossbeam.

[0015] 2. This utility model, through a primary connecting frame and a secondary connecting frame, enables quick disassembly and replacement of the reverse hook when it is worn or damaged, greatly improving the ease of maintenance. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the assembly structure of the longitudinal guide beam, the transverse guide beam, and the trolley in this utility model;

[0019] Figure 3 This is a schematic diagram of the assembly structure of the lifting cylinder, connecting components and primary connecting frame in this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly structure of the hook lug and the limiting pin in this utility model;

[0021] Figure 5 This is a schematic diagram of the assembly structure of the platform trolley, the traveling wheels, and the drive gear of this utility model;

[0022] Figure 6 This is a schematic diagram of the assembly structure of the primary connecting frame, the secondary connecting frame, and the reverse hook in this utility model;

[0023] Figure 7 This is a utility model Figure 3 Schematic diagram of the middle connection component structure.

[0024] Reference numerals: 1-Longitudinal guide beam; 2-Transverse guide beam; 3-Trolley; 4-Maintenance platform; 5-Walking wheel; 6-Drive gear; 7-Rack and pinion guide; 8-Fixed seat; 9-Lifting cylinder; 10-Connecting assembly; 101-Connecting crossbeam; 102-Side mounting slot; 103-Center mounting slot; 11-Cylinder pin; 12-First-stage connecting frame; 13-Hook pin; 14-Hook ear plate; 15-Limit pin; 16-Limit slot; 17-Second-stage connecting frame; 18-Reverse hook. Detailed Implementation

[0025] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 7 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0026] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0027] This utility model is a reverse hanging device for the side-lifting beam of a bridge erecting machine. The existing method of manually anchoring the transverse guide beam 2 has the problem of inconvenient anchoring.

[0028] As an example, such as Figure 1 , Figure 3 and Figure 7 The present invention includes a longitudinal guide beam 1, a transverse guide beam 2, and a trolley 3. The trolley 3 is located between the longitudinal guide beam 1 and the transverse guide beam 2. The trolley 3 is fixedly connected to the bottom of the transverse guide beam 2. A fixed seat 8 is fixedly connected to the top of the trolley 3. A lifting cylinder 9 is fixedly connected to the top of the fixed seat 8. A connecting assembly 10 is provided on the top of the lifting cylinder 9. The connecting assembly 10 includes a lifting crossbeam 101. The bottom of the connecting crossbeam 101 has two side mounting slots 102 and a middle mounting slot 103. The middle mounting slot 103 is located between the two side mounting slots 102. Reverse hooks 18 are provided on both sides of the bottom of the connecting crossbeam 101. The two reverse hooks 18 are located on both sides of the longitudinal guide beam 1, and the two reverse hooks 18 cooperate with the lower chords on both sides of the longitudinal guide beam 1.

[0029] As an example, such as Figure 3 and Figure 7The lifting cylinder 9 is installed at the center of the trolley 3, and the output end of the lifting cylinder 9 is fixedly connected to the central mounting groove 103 through the cylinder pin 11.

[0030] In this embodiment, by controlling the movement of the lifting cylinder 9, its piston rod (output end) is driven to extend outward, and the thrust is transmitted to the connecting crossbeam 101 through the cylinder pin 11, causing it to rise as a whole. During the rising process of the connecting crossbeam 101, the reverse hooks 18 symmetrically arranged on both sides of its bottom move upward synchronously and relative to each other until the inner working surface of the reverse hooks 18 is tightly attached to both sides of the longitudinal guide beam 1. The reverse hooks form a constraint, firmly connecting the crossbeam 2 trolley 3 and the longitudinal guide beam 1 into a whole structure, effectively enhancing the overall rigidity and anti-overturning stability of the system under load conditions, and providing a reliable safety foundation for subsequent beam erection operations. When it is necessary to cancel the anchoring, the lifting cylinder 9 is operated to drive the piston rod (output end) to retract, causing the connecting crossbeam 101 to descend, thereby causing the reverse hooks 18 on both sides of the bottom to move downward synchronously and towards each other, so that the two reverse hooks 18 at the bottom descend synchronously and disengage from the longitudinal guide beam 1.

[0031] As an example, such as Figure 6 and Figure 7 Both side mounting slots 102 are rotatably connected to a primary connecting frame 12 via hook pins 13. The bottom of each of the two primary connecting frames 12 is fixedly connected to a secondary connecting frame 17 via fixing bolts. The two secondary connecting frames 17 are respectively inserted into the bottom of the two primary connecting frames 12, and the two reverse hooks 18 are respectively fixedly connected to the bottom of the two secondary connecting frames 17.

[0032] In this embodiment, when the reverse hook 18 is damaged or deformed, the worker can remove it by fixing bolts, thereby separating the secondary connecting frame 17 from the primary connecting frame 12, and thus removing the reverse hook 18 and installing a new reverse hook 18 for continued anchoring.

[0033] As an example, such as Figure 4 Two hook lugs 14 are fixedly connected to both sides of the trolley 3, and a limit pin 15 is fixedly connected to the two hook lugs 14 on one side of the trolley 3.

[0034] As an example, such as Figure 4 and Figure 6 The primary connecting frame 12 is located between the two hook ear plates 14. Each of the two primary connecting frames 12 has a limiting groove 16. The two limiting grooves 16 are respectively inclined on the two primary connecting frames 12. The inclination of the two limiting grooves 16 gradually moves away from each other from top to bottom. The limiting groove 16 is a limiting pin 15 that is slidably connected to the limiting groove 16 on the primary connecting frame 12.

[0035] In this embodiment, when the lifting cylinder 9 drives the connecting beam 101 to move up and down, the connecting beam 101 simultaneously drives the primary connecting frame 12 connected to its bottom to move up and down as a whole. During this process, the primary connecting frame 12 is constrained between two parallel hook lugs 14. At the same time, the limiting groove 16 specially opened on the primary connecting frame 12 forms a sliding engagement with the limiting pin 15 that runs through the two hook lugs 14, forming an effective motion constraint on the primary connecting frame 12 during the lifting process. When the lifting cylinder 9 works and drives the primary connecting frame 12 to rise, the top of the primary connecting frame 12... The rotational engagement of the hook pin 13 causes the two lower reverse hooks 18 to undergo a combined upward and backward displacement under the constraint of the limiting groove 16. This ultimately locks the working surfaces of the reverse hooks 18 onto the lower chord of the longitudinal guide beam 1, forming a reliable anchorage. Conversely, when the lifting cylinder 9 retracts, it drives the first-stage connecting frame 12 to descend. The limiting groove 16 guides the two lower reverse hooks 18 to undergo a combined downward and backward displacement. This causes the working surfaces of the reverse hooks 18 to disengage from the lower chord of the longitudinal guide beam 1, and also moves the working surfaces of the reverse hooks 18 to the side of the longitudinal guide beam 1, thus avoiding any impact on subsequent operations of the longitudinal guide beam.

[0036] As an example, such as Figure 2 and Figure 7 A maintenance platform 4 is provided on one side of the trolley 3. A traveling wheel 5 is fixedly connected to the bottom of the trolley 3. The traveling wheel 5 rolls with the top of the longitudinal guide beam 1. A drive gear 6 is fixedly connected to one side of the traveling wheel 5. A rack and pinion guide 7 is fixedly connected to the top of the longitudinal guide beam 1. The drive gear 6 and the rack and pinion guide 7 cooperate with each other.

[0037] In this embodiment, the drive gear 6 rotates, meshes with the rack and pinion guide rail 7 to move, thereby driving the trolley 3 to move on top of the longitudinal guide beam 1.

[0038] Working principle of this utility model:

[0039] When the longitudinal guide beam 1 needs to be anchored, the lifting cylinder 9 is activated, driving the connecting crossbeam 101 to move upward, which in turn causes the first-level connecting frame 12, the second-level connecting frame 17 and the anti-hook hook 18 fixed thereto on both sides of the bottom to rise synchronously until the inner working surface of the anti-hook hook 18 is in close contact with both sides of the longitudinal guide beam 1, thus achieving reliable anchoring. When the anchoring needs to be released, the lifting cylinder 9 retracts, and its output end retracts into the lifting cylinder 9, causing the connecting crossbeam 101 to descend, so that the two anti-hook hooks 18 at the bottom descend synchronously and disengage from the longitudinal guide beam 1, thus completing the anchoring release.

[0040] During the process of the connecting beam 101 driving the first-level connecting frame 12 to rise and fall, the two hook lugs 14 on one side of the trolley 3 form a group, and the two first-level connecting frames 12 slide between the two groups of hook lugs 14 respectively. At the same time, the limiting pin 15 between the hook lugs 14 is embedded in the limiting groove 16 of the first-level connecting frame 12 and slides along the limiting groove 16, forming an effective guide and constraint for the first-level connecting frame 12. This ensures that the first-level connecting frame 12 can adjust to the shape of the limiting groove 16 during the lifting and lowering process, so that when the first-level connecting frame 12 lifts the reverse hook 18, it can accurately embed into both sides of the longitudinal guide beam 1 for anchoring. When the first-level connecting frame 12 drives the reverse hook 18 to fall, the working surface of the reverse hook 18 is separated from the longitudinal guide beam 1 and moves to one side of the longitudinal guide beam 1, avoiding subsequent impact on the longitudinal guide beam 1.

[0041] If the reverse hook 18 is damaged, the operator can remove the secondary connecting frame 17 from the primary connecting frame 12 and then replace the reverse hook 18 for easy maintenance and replacement.

[0042] The present invention has the following technical effects.

[0043] 1. This utility model uses a lifting cylinder 9, a connecting beam 101, and a reverse hook 18 to anchor the lower horizontal guide beam 2, thereby fixing the horizontal guide beam 2 and the trolley 3 into a whole. Through the hook ear plate 14 and the limiting pin 15, the movement trajectory of the reverse hook 18 can be constrained during its descent, ensuring that the reverse hook 18 always moves back and forth on the same trajectory, thus better cooperating with the anchoring operation of the horizontal guide beam 2.

[0044] 2. This utility model, through the primary connecting frame 12 and the secondary connecting frame 17, enables the quick disassembly and replacement of the reverse hook 18 when it is worn or damaged, greatly improving the ease of maintenance.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A reverse-hanging device for side-lifting beam operation of a bridge erecting machine, comprising a longitudinal guide beam (1), a transverse guide beam (2), and a trolley (3), characterized in that, The trolley (3) is located between the longitudinal guide beam (1) and the transverse guide beam (2). The trolley (3) is fixedly connected to the bottom of the transverse guide beam (2). A fixed seat (8) is fixedly connected to the top of the trolley (3). A lifting cylinder (9) is fixedly connected to the top of the fixed seat (8). A connecting assembly (10) is provided on the top of the lifting cylinder (9). The connecting assembly (10) includes a connecting crossbeam (101) that can be lifted. Two side mounting slots (102) and a middle mounting slot (103) are opened at the bottom of the connecting crossbeam (101). Two reverse hooks (18) are provided on both sides of the bottom of the connecting crossbeam (101). The two reverse hooks (18) are located on both sides of the longitudinal guide beam (1). The two reverse hooks (18) are respectively engaged with the lower chords on both sides of the longitudinal guide beam (1).

2. The reverse-hanging device for the side-lifting beam operation of a bridge erecting machine according to claim 1, characterized in that, The lifting cylinder (9) is installed at the center of the trolley (3), and the output end of the lifting cylinder (9) is fixedly connected in the central mounting groove (103) through the cylinder pin (11).

3. The reverse-hanging device for the side-lifting beam operation of a bridge erecting machine according to claim 1, characterized in that, Both of the side mounting slots (102) are rotatably connected to a primary connecting frame (12) via hook pins (13). The bottom of each of the two primary connecting frames (12) is fixedly connected to a secondary connecting frame (17) via fixing bolts. The two reverse hooks (18) are respectively fixedly connected to the bottom of the two secondary connecting frames (17).

4. The reverse-hanging device for the side-lifting beam operation of a bridge erecting machine according to claim 3, characterized in that, Two hook lugs (14) are fixedly connected to both sides of the trolley (3), and a limit pin (15) is fixedly connected to the two hook lugs (14) on one side of the trolley (3).

5. The reverse-hanging device for the side-lifting beam operation of a bridge erecting machine according to claim 4, characterized in that, The primary connecting frame (12) is located between two hook lugs (14), and each of the two primary connecting frames (12) has a limiting groove (16). The limiting pin (15) is slidably connected in the limiting groove (16) on the primary connecting frame (12).

6. The reverse-hanging device for the side-lifting beam operation of a bridge erecting machine according to claim 1, characterized in that, A maintenance platform (4) is provided on one side of the trolley (3). A traveling wheel (5) is fixedly connected to the bottom of the trolley (3). The traveling wheel (5) rolls with the top of the longitudinal guide beam (1). A drive gear (6) is fixedly connected to one side of the traveling wheel (5). A rack and pinion guide (7) is fixedly connected to the top of the longitudinal guide beam (1). The drive gear (6) and the rack and pinion guide (7) cooperate with each other.

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