Swinging sliding type hanging bracket on bridge girder erection machine

Abstract

The utility model discloses a swinging sliding type hanging bracket on a bridge girder erection machine, and belongs to the technical field of auxiliary devices of bridge girder erection machines. The device comprises a mounted box girder; a bridge girder erection machine is arranged on the box girder; a second column of the bridge girder erection machine is arranged close to the front side end face of the box girder. A swing frame is hinged to the end face of the front side of the second column. A movable rod is arranged on the lower side of the swing frame; a sliding block is movably mounted on the movable rod; a guide piece is arranged at the beam seam where the second column is mounted; a driving rod is movably arranged on the guide piece; one end of the driving rod can extend out of the front side of the beam seam, and a connecting rod is hinged to the extending end; the other end of the connecting rod is hinged to the swing frame; the driving rod can drive the swing frame to rotate relative to the second column through the connecting rod. The lower part of the sliding block is connected with a lifting ring through a sling; according to the utility model, the problems that the labor cost is higher and the construction time is increased when the arc-shaped guardrail is disassembled and assembled by using a temporary crane at present are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge -erecting machine auxiliary device technical field, concretely relates to a swingable sliding type hanging frame on bridge -erecting machine. BACKGROUND

[0002] In order to provide effective protection to the pier position when construction is carried out through the bridge -erecting machine, the applicant has designed a split type protection equipment, which is installed with a hanging bucket lower than the height of support on the pier, sets up the connecting piece at the side of the hanging bucket, and detachably installs the arc guardrail at the connecting piece as the protection piece of the pier corner position, and in order to avoid the interference to the normal construction process, the arc guardrail needs to be frequently disassembled and assembled, and the current disassembly and assembly are still through the temporary crane device to cooperate, which obviously increases the labor cost and time cost, so it is necessary to design a new support and suspension structure for the movable guardrail. SUMMARY

[0003] The utility model solves the technical problems that: provide a swingable sliding type hanging frame on bridge -erecting machine to solve the problem that the current use temporary crane to arc guardrail exists higher labor cost, and increase construction time.

[0004] To solve the above problems, the utility model provides the following technical scheme:

[0005] A swingable sliding type hanging frame on bridge -erecting machine, it includes the box girder that has been installed, set up bridge -erecting machine on the box girder, and the second column of bridge -erecting machine is close to the front side end surface of box girder, and the hinged installation of swing frame is set up on the front side end surface of the second column, and the movable installation of sliding block is set up on the downside of swing frame, and the guide piece is set up in the beam joint of the second column, and the movable installation of driving rod is set up on the guide piece, and the one end of driving rod can stretch out from the front side of beam joint, and the hinged installation of connecting rod is set up on the stretch out end, and the other end of connecting rod is hinged and installed on swing frame, and driving rod can drive swing frame to rotate relative to the second column through connecting rod, and the hanger ring is connected with the hanger ring through the hanger cable in the lower part of sliding block.

[0006] Preferably, two opposite lug plates are set up on the different heights of the front side end surface of the second column of bridge -erecting machine, and the positioning hole is opened on the opposite end surface of lug plate, and the upper and lower ends of swing frame are rotatably installed on lug plate through positioning block.

[0007] Preferably, two swing frames are set up, and the structure of two swing frames is consistent and the installation height is same, and the rotation shaft of swing frame is arranged along the vertical direction, and the movable installation of sliding block is set up on the downside of two swing frames through the slot on the lug plate.

[0008] Preferably, the lug plate is a slot type straight rod structure with the cross section of I-shaped, and the movable installation of sliding block is set up on the downside of lug plate through the slot on lug plate.

[0009] Preferably, the guide is a hollow cylindrical component, which is horizontally positioned at the beam joint of column No. 2; the drive rod is a straight rod structure that passes through the guide; an ear plate is provided on the extended end of the drive rod; one end of the connecting rod is hinged to the ear plate via a pin.

[0010] Furthermore, both the connecting rod and the drive rod move on the same horizontal plane.

[0011] Preferably, when the swing frame is at a maximum swing angle, the extended end of the movable rod extends along the width direction of the box girder and is set beyond the side of the box girder.

[0012] Preferably, a limiting clip for restricting its movement relative to the guide is also detachably provided on the drive rod.

[0013] The beneficial effects of this utility model are:

[0014] This utility model utilizes the structure of the No. 2 column of a bridge erecting machine to process a swingable sliding gantry on its end side, which can be used to easily hoist curved guardrails. The No. 2 column and a guide component set on the beam joint of the No. 2 column serve as fixing components. A sliding drive rod is installed on the guide component, and a swing frame is hinged to the end face of the No. 2 column. The drive rod and the swing frame are further hinged through a connecting rod, thus forming a four-bar linkage that can control the reciprocating swing of the swing frame. A slider is arranged on the swing frame, and slings and lifting rings are arranged on the slider, thereby achieving rapid hoisting of curved guardrails. This not only effectively reduces the labor costs incurred by using cranes but also greatly shortens the construction period, making it suitable for widespread use in the industry. Attached Figure Description

[0015] Fig. 1 This is a partial three-dimensional structural diagram of the present invention located at the position of column number two in an embodiment;

[0016] Fig. 2 This embodiment shows the relative position of the movable rod on the device on the No. 2 column and the box girder when it swings outward toward the box girder.

[0017] Fig. 3 This is a schematic diagram showing the relative position of the movable rod on the device in this embodiment on the No. 2 column and the box girder when it swings toward the middle of the box girder;

[0018] Fig. 4 This is a simplified schematic diagram of the planar four-bar linkage formed by the second column, guide member, drive rod, connecting rod, and swing frame in this embodiment;

[0019] Explanation of reference numerals in the attached drawings: 1. Box girder, 2. Column No. 2, 3. Frame, 4. Movable rod, 5. Sliding block, 6. Guide component, 7. Drive rod, 8. Connecting rod, 9. Ear plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] Example:

[0022] Reference Figs. 1 to 4 This embodiment provides a swingable sliding hanger for a bridge erecting machine; it includes an installed box girder 1; a bridge erecting machine is installed on the box girder 1; and the second column 2 of the bridge erecting machine is located near the front end face of the box girder 1; a swing frame 3 is hingedly installed on the front end face of the second column 2; a movable rod 4 is provided on the lower side of the swing frame 3; a slider 5 is movably installed on the movable rod 4; a guide 6 is provided at the beam joint of the second column 2; a drive rod 7 is movably installed on the guide 6; one end of the drive rod 7 can extend from the front side of the beam joint, and a connecting rod 8 is hingedly installed on the extended end; the other end of the connecting rod 8 is hingedly installed on the swing frame 3; the drive rod 7 can drive the swing frame 3 to rotate relative to the second column 2 through the connecting rod 8; a lifting ring is connected to the lower part of the slider 5 by a sling.

[0023] Two opposing ear plates 9 are set at different heights on the front end face of the No. 2 column of the bridge erecting machine; positioning holes are opened on the opposite end faces of the ear plates 9, and the upper and lower ends of the swing frame 3 are rotatably installed on the ear plates 9 through positioning blocks.

[0024] There are two pendulum frames 3; the two pendulum frames 3 have the same structure and the same installation height; the pivot of the pendulum frame 3 is arranged vertically, and the movable rod 4 is installed horizontally on the lower side of the two pendulum frames 3.

[0025] The movable rod 4 is a slotted straight rod structure with an I-shaped cross-section, and the slider 5 is movably installed on its lower side through the slot on the movable rod 4.

[0026] The guide member 6 is a hollow straight cylindrical component, which is horizontally set at the beam joint of column 2; the drive rod 7 is a straight rod structure that passes through the guide member 6; an ear plate clamp is provided on the extended end of the drive rod 7; one end of the connecting rod 8 is hinged to the ear plate clamp by a pin.

[0027] Both connecting rod 8 and drive rod 7 move on the same horizontal plane.

[0028] When the swing frame 3 is at a maximum swing angle, the extended end of the movable rod 4 extends along the width direction of the box girder 1 and is set beyond the side of the box girder 1.

[0029] A limiting device for restricting its movement relative to the guide member 6 is also detachably provided on the drive rod 7. In this embodiment, the limiting device is a limiting pin structure provided on the drive rod and capable of engaging the drive rod with the joint of the second column beam.

[0030] When using the utility model device in this embodiment, it is only necessary to remove the limiting pin set on the drive rod, and then push / pull the drive rod according to actual needs. The drive rod can drive the swing frame to swing towards the middle or the outside of the box girder through the connecting rod, so that the arc-shaped guardrail can move closer to or away from the lower pier. Then, by controlling the arc-shaped guardrail with the slider, the arc-shaped guardrail can be moved relatively closer to or away from the box girder in the width direction; thereby realizing the installation of the arc-shaped guardrail, or placing the arc-shaped guardrail on both sides of the box girder to avoid affecting subsequent construction operations.

Claims

1. A swingable sliding hanger for a bridge erecting machine, comprising an installed box girder (1); a bridge erecting machine is mounted on the box girder (1); and a second column (2) of the bridge erecting machine is positioned near the front end face of the box girder (1); characterized in that: A swing frame (3) is hinged to the front end face of column 2 (2); a movable rod (4) is provided on the lower side of the swing frame (3); a slider (5) is movably installed on the movable rod (4); a guide (6) is provided at the beam joint of column 2 (2); a drive rod (7) is movably installed on the guide (6); one end of the drive rod (7) can extend from the front side of the beam joint, and a connecting rod (8) is hinged to the extended end; the other end of the connecting rod (8) is hinged to the swing frame (3); the drive rod (7) can drive the swing frame (3) to rotate relative to column 2 (2) through the connecting rod (8); a lifting ring is connected to the lower part of the slider (5) by a sling.

2. The swingable sliding hanger on a bridge erecting machine according to claim 1, characterized in that: Two opposing ear plates (9) are set at different heights on the front end face of the No. 2 column (2) of the bridge erecting machine; positioning holes are opened on the opposite end faces of the ear plates (9), and the upper and lower ends of the swing frame (3) are rotatably installed on the ear plates (9) through positioning blocks.

3. The swingable sliding gantry on a bridge erecting machine according to claim 1, characterized in that: There are two pendulum frames (3); the two pendulum frames (3) have the same structure and the same installation height; the pivot of the pendulum frame (3) is arranged vertically, and the movable rod (4) is installed horizontally on the lower side of the two pendulum frames (3).

4. The swingable sliding hanger on a bridge erecting machine according to claim 1, characterized in that: The movable rod (4) is a slotted straight rod structure with an I-shaped cross section, and the slider (5) is movably installed on its lower side through the slot on the movable rod (4).

5. The swingable sliding hanger on a bridge erecting machine according to claim 1, characterized in that: The guide (6) is a hollow straight cylindrical component, which is horizontally set at the beam joint of column 2 (2); the drive rod (7) is a straight rod structure that passes through the guide (6); an ear plate is provided on the extended end of the drive rod (7); one end of the connecting rod (8) is hinged to the ear plate by a pin.

6. The swingable sliding hanger on a bridge erecting machine according to claim 1, characterized in that: Both the connecting rod (8) and the drive rod (7) move on the same horizontal plane.

7. The swingable sliding hanger on a bridge erecting machine according to claim 1, characterized in that: When the swing frame (3) is at a maximum swing angle, the extended end of the movable rod (4) extends along the width direction of the box girder (1) and is set across the side of the box girder (1).

8. The swingable sliding hanger on a bridge erecting machine according to claim 1, characterized in that: A limiting clip for restricting its movement relative to the guide (6) is also detachably provided on the drive rod (7).

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