Bridge fabrication machine front supporting leg structure for limited space

Abstract

The utility model provides a bridge fabrication machine front supporting leg structure for a limited space, and relates to the technical field of bridge equipment. One side of the top of the anchoring bracket is in threaded connection with a lower cross beam, the two sides of the top of the lower cross beam are in threaded connection with a plurality of cushion piers, the tops of the cushion piers are in threaded connection with supporting leg assemblies, the tops of the supporting leg assemblies are in threaded connection with telescopic column assemblies, and one side of the top of each telescopic column assembly is in threaded connection with a longitudinal moving hinged support. The top of the longitudinal moving hinged support is in threaded connection with a telescopic frame; by adopting the temporarily anchored L-shaped supporting leg structure for construction, the problem of coexistence and coordination operation of supporting legs in a limited space in the prior art is effectively solved, a main body supporting column of the L-shaped supporting leg structure can extend out of a projection plane of a pier top, so that a rear bearing supporting leg structure is avoided, the risk of overturning accidents of a bridge crane caused by interference of the supporting legs is reduced, and the safety of the bridge crane is improved. And meanwhile, the comprehensive practicability of the bridge crane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge equipment, in particular to a front outrigger structure of a bridge erector for a restricted space. Background Technique

[0002] In bridge erection construction, using a bridge erector to erect box girders is a relatively efficient operation method. The structure of the bridge erector is mostly provided with a No. 1 auxiliary outrigger, which is used to assist the whole machine in passing through the hole. It is installed at the front end of the bridge erector and used to support on the top of the bridge pier. Its structure does not play a load-bearing role.

[0003] However, during the construction of the bridge erector, the No. 2 and No. 3 load-bearing outriggers are mostly used during the box girder erection and the transverse movement of the whole machine by the bridge erector. Especially when erecting box girders, the No. 2 load-bearing outrigger of the bridge erector needs to be positioned above the top of the front pier and cooperate with the rear No. 3 load-bearing outrigger to jointly complete the box girder erection operation. In this working condition, there is a situation where the No. 1 outrigger and the No. 2 outrigger compete for the position on the top of the pier. If not handled properly, it is very easy to occur an overturning safety accident. Summary of the Invention

[0004] In view of the above-mentioned prior art, the utility model provides a front outrigger structure of a bridge erector for a restricted space to solve the problem that the outriggers compete for the top of the pier, resulting in the inclination or instability of the bridge erector.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a front outrigger structure of a bridge erector for a restricted space, including an anchoring bracket; one side of the top of the anchoring bracket is threadedly connected with a lower cross beam, both sides of the top of the lower cross beam are threadedly connected with a plurality of cushion piers, the top of the cushion piers is threadedly connected with an outrigger assembly, the top of the outrigger assembly is threadedly connected with a telescopic column assembly, one side of the top of the telescopic column assembly is threadedly connected with a longitudinal movement hinge seat, the top of the longitudinal movement hinge seat is threadedly connected with a telescopic frame, a plurality of diagonal bracing anchoring seats are fixedly installed at the bottom of the telescopic frame, and a chain block and a turnbuckle are respectively movably installed on one side of the diagonal bracing anchoring seat.

[0006] Preferably, a first steel wire rope is arranged inside the chain block, the first steel wire rope is fixedly connected to the back of the outrigger assembly, a second steel wire rope is movably installed inside the turnbuckle, and the second steel wire rope is connected to the front of the outrigger assembly.

[0007] Preferably, a plurality of hanging brackets are fixedly installed at the top of the telescopic frame, and an oil cylinder pin shaft is movably installed on the front of the outrigger assembly.

[0008] Preferably, a plurality of outrigger pins are movably installed on the front of the outrigger assembly, and a spring clip is arranged on the surface of the outrigger pins.

[0009] Preferably, a rotating pin is movably installed on the back surface of the outrigger assembly, and a strut pin shaft is arranged on one side of the hanging bracket.

[0010] Preferably, an oil cylinder connecting beam is threadedly connected to the bottom inside the telescopic column assembly.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. By adopting the construction of the temporary anchoring L-shaped outrigger structure, the present utility model effectively solves the problem of the coordinated operation of outriggers coexisting in a limited space in the prior art. The main column of the L-shaped outrigger structure can extend beyond the pier top projection surface, so as to avoid the rear load-bearing outrigger structure, reduce the risk of overturning accidents caused by outrigger interference of the bridge crane, and at the same time, improve the comprehensive practicability of the bridge crane.

[0013] 2. Through the overall modular structure design, the present utility model makes the installation process very convenient, environmentally friendly, in line with the concept of green environmental protection. At the same time, it can realize the rapid installation and disassembly of the bridge crane, greatly saving labor and material costs and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a front view plane structure schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 It is a side view plane structure schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 It is a top view plane structure schematic diagram of an embodiment of the present utility model;

[0018] Figure 4 It is a structure schematic diagram of the coplanar operation of the L-shaped auxiliary outrigger and the load-bearing outrigger in an embodiment of the present utility model.

[0019] In the figure: 1, anchoring bracket; 2, lower cross beam; 3, cushion pier; 4, outrigger assembly; 5, telescopic column assembly; 6, longitudinal movement hinge seat; 7, telescopic frame; 8, inclined support anchoring seat; 9, chain block; 10, turnbuckle; 11, first steel wire rope; 12, second steel wire rope; 13, hanging bracket; 14, oil cylinder pin shaft; 15, outrigger pin; 16, spring clip; 17, rotating pin; 18, strut pin shaft; 19, oil cylinder connecting beam. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0021] The following will further elaborate on the present invention in detail in conjunction with the attached Figures 1-4 drawings.

[0022] An embodiment of the present invention discloses a front leg structure of a bridge erector for a confined space, which includes an anchoring bracket 1. One side of the top of the anchoring bracket 1 is threadedly connected with a lower cross beam 2. A plurality of cushion piers 3 are threadedly connected to both sides of the top of the lower cross beam 2. A leg assembly 4 is threadedly connected to the top of the cushion pier 3. A telescopic column assembly 5 is threadedly connected to the top of the leg assembly 4. One side of the top of the telescopic column assembly 5 is threadedly connected with a longitudinal movement hinge seat 6. A telescopic frame 7 is threadedly connected to the top of the longitudinal movement hinge seat 6. A plurality of diagonal bracing anchoring seats 8 are fixedly installed at the bottom of the telescopic frame 7. A manual hoist 9 and a thimble screw shackle 10 are respectively movably installed on one side of the diagonal bracing anchoring seat 8.

[0023] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , the lower cross beam 2 facilitates the support and fixation of the legs, thereby increasing the stability of the legs. The cushion pier 3 facilitates the support and fixation of the legs to ensure the stability of the legs. The leg assembly 4 facilitates the support of the weight of the bridge erector and at the same time ensures the stability during the operation of the bridge erector. The longitudinal movement hinge seat 6 facilitates the movement of the leg assembly 4, so that the leg assembly 4 can move in the horizontal direction. The diagonal bracing anchoring seat 8 is used to fix the diagonal bracing, thereby maintaining the stability and safety of the legs. The manual hoist 9 facilitates the manual operation of the shackle and the wire rope by the staff, thereby realizing the lifting of the hanging bracket 13. The telescopic frame 7 and the telescopic column assembly 5 cooperate to facilitate the adjustment of the length of the legs to adapt to the pier tops of different heights. The thimble screw shackle 10 facilitates the fixation of the wire rope, so that the wire rope can effectively transmit force.

[0024] A first wire rope 11 is arranged inside the manual hoist 9. The first wire rope 11 is fixedly connected to the back of the leg assembly 4. A second wire rope 12 is movably installed inside the thimble screw shackle 10. The second wire rope 12 is connected to the front of the leg assembly 4.

[0025] Referring to Figure 2 , the first wire rope 11 and the second wire rope 12 cooperate with the shackle for the lifting of the hanging bracket 13 to facilitate the subsequent adjustment of the height of the legs.

[0026] Several hanging brackets 13 are fixedly installed at the top of the telescopic frame 7, and an oil cylinder pin shaft 14 is movably installed on the front of the leg assembly 4.

[0027] Referring to Figure 1 and Figure 2 , the oil cylinder pin shaft 14 is convenient for ensuring the stability of the oil cylinder connection, and further ensuring the stability during the subsequent operation of the oil cylinder.

[0028] Several leg pins 15 are movably installed on the front of the leg assembly 4, and a spring clip 16 is arranged on the surface of the leg pin 15.

[0029] Referring to Figure 2 , the cooperation of the leg pin 15 and the spring clip 16 is convenient for fixing the legs, thereby preventing the legs from moving during construction, and further increasing the safety of the device operation.

[0030] A rotating pin 17 is movably installed on the back of the leg assembly 4, and a strut pin shaft 18 is arranged on one side of the hanging bracket 13.

[0031] Referring to Figure 1 and Figure 2 , the rotating pin 17 is convenient for the staff to quickly connect and adaptively adjust the strut, so that the legs can adapt to different construction environments, and further facilitate the subsequent adjustment of the leg angle by adjusting the strut to ensure the stability of the legs during construction. The strut pin shaft 18 is convenient for connecting the strut and maintaining the stability of the strut.

[0032] An oil cylinder connecting beam 19 is threadedly connected to the bottom inside the telescopic column assembly 5.

[0033] Referring to Figure 1 and Figure 4 , the cooperation of the oil cylinder connecting beam 19 and the oil cylinder pin shaft 14 is convenient for fixing the oil cylinder, so as to facilitate the subsequent driving of the telescopic movement of the legs, and further realize the function of automatic adjustment of the legs.

[0034] Working principle: When using this device, by setting up the temporary anchoring bracket 1, temporary anchoring can be carried out after the L-shaped leg is in place. The leg structure is tensioned and fixed in both forward and reverse directions through the turnbuckle 10 and the steel wire rope. The L-shaped auxiliary leg is used to adapt to the pier top slope. During this period, it can rotate a certain angle around the hinge point. The leg is effectively fixed in the swing plane through the positive and negative screw device and the steel wire rope. At the same time, in cooperation with various components of external equipment, the force on the leg is monitored in real time. The longitudinal movement hinge seat 6 provides the movement range for the leg assembly 4. The diagonal brace anchoring seat 8 is used to fix the diagonal brace. The lifting of the hanging bracket 13 is adjusted through the cooperation of the steel wire rope and the shackle. The shackle and the steel wire rope are manually operated through the chain block 9. The hanging bracket 13 is connected to, supports and fixes the leg assembly 4 through the rolled thread steel and the rolled thread steel nut. The length of the leg is adjusted through the telescopic frame 7 and the telescopic column assembly 5. The weight of the bridge crane is supported by the leg assembly 4. The telescopic movement of the leg is driven through the oil cylinder connecting beam 19 and the oil cylinder pin shaft 14. The leg is fixed through the leg pin 15 and the spring clip 16. The adjusting strut is connected and adjusted through the rotating pin 17 and the split pin. The angle of the leg is adjusted through the adjusting strut. The strut is connected through the strut pin shaft 18. The leg is supported and fixed through the cushion pier 3.

[0035] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A front outrigger structure of a bridge erector for a confined space, characterized in that: It includes an anchoring bracket (1); on one side of the top of the anchoring bracket (1), a lower cross beam (2) is threadedly connected. On both sides of the top of the lower cross beam (2), a number of cushion piers (3) are threadedly connected. On the top of the cushion piers (3), a leg assembly (4) is threadedly connected. On the top of the leg assembly (4), a telescopic column assembly (5) is threadedly connected. On one side of the top of the telescopic column assembly (5), a longitudinal movement hinge seat (6) is threadedly connected. On the top of the longitudinal movement hinge seat (6), a telescopic frame (7) is threadedly connected. At the bottom of the telescopic frame (7), a number of diagonal bracing anchoring seats (8) are fixedly installed. On one side of each of the diagonal bracing anchoring seats (8), a chain block (9) and a thimble screw shackle (10) are respectively movably installed.

2. The front outrigger structure of the bridge erector for confined space according to claim 1, characterized in that: Inside the chain block (9), a first steel wire rope (11) is provided. The first steel wire rope (11) is fixedly connected to the back of the leg assembly (4). Inside the thimble screw shackle (10), a second steel wire rope (12) is movably installed. The second steel wire rope (12) is connected to the front of the leg assembly (4).

3. The front outrigger structure of a bridge erector for a confined space according to claim 1 or 2, characterized in that: On the top of the telescopic frame (7), a number of hanging brackets (13) are fixedly installed. On the front of the leg assembly (4), an oil cylinder pin shaft (14) is movably installed.

4. The front outrigger structure of the bridge erector for a confined space according to claim 1 or 2, characterized in that: On the front of the leg assembly (4), a number of leg pins (15) are movably installed. On the surface of the leg pins (15), spring clips (16) are provided.

5. The front outrigger structure of the bridge building machine for confined space according to claim 1 or 2, characterized in that: On the back of the leg assembly (4), a rotary pin (17) is movably installed. On one side of the hanging bracket (13), a strut pin shaft (18) is provided.

6. The front outrigger structure of the bridge erector for a confined space according to claim 1 or 2, characterized in that: At the bottom inside the telescopic column assembly (5), an oil cylinder connecting beam (19) is threadedly connected.

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