Bridge erecting machine capable of meeting height-limiting and width-limiting beam erecting construction of double-layer cast-in-place beam

Abstract

The utility model provides a bridge girder erection machine capable of satisfying double-layer cast-in-place beam height limit width limit beam erection construction, which comprises a machine arm, a first column, a second column, a hanging curved beam and a hanging beam crane, the first column is installed on a lower ear beam at the front end of the machine arm and fixedly connected with the machine arm through a gear rack, the second column is installed on an upper ear beam of the machine arm, and the hanging curved beam is fixedly connected with the machine arm through a gear rack. The second column is fixedly connected with a machine arm through a gear rack, an anchoring cross beam is arranged on one side of the machine arm, a front beam transporting vehicle and a rear beam transporting vehicle are arranged below the machine arm, and a hanging curved beam is installed on one side of an upper lug beam of the machine arm. The device is suitable for the width-limiting working condition of portal piers after construction of upper-layer cast-in-place beams of double-layer beams erected by a bridge girder erection machine and the height-limiting working condition of erecting lower-layer beams, low-clearance-height beam erection of the lower-layer beams under the double-layer beam working condition can be achieved, and narrow-width space beam erection of the lower-layer beams under the double-layer beam working condition can be achieved; the anchoring type hanging curved beam is adopted to replace a second column to hang the machine arm, and the hole passing and beam erecting requirements of the bridge girder erection machine are met.

Description

Technical Field

[0001] The utility model relates to a bridge erection machine, in particular to a bridge erection machine capable of meeting the requirements of double-layer cast-in-situ beam erection construction with limited height and width, and belongs to the technical field of bridge construction. Background Art

[0002] A bridge erection machine is a device that places prefabricated beams onto prefabricated bridge piers. It belongs to the category of cranes because its main function is to lift beams, transport them to the location, and then lower them. Bridge erection machines are very different from general cranes. They require harsh conditions and can move on the beams, or called longitudinal movement. Bridge erection machines are divided into several types, such as highway bridges, conventional railway bridges, and passenger railway bridges.

[0003] Currently, due to the limitations of the overall size of the bridge erection machine and the beam erection method, during the construction of a double-deck road-rail dual-use shared pier bridge, the lower high-speed railway box girder must be erected first, followed by the upper highway beam portal pier, and finally the upper highway box girder. If there is a cast-in-place continuous beam on the upper layer, construction can only begin after the lower railway beam is erected, which seriously restricts the construction process and efficiency.

[0004] In order to solve the above technical problems, a bridge erection machine is proposed that can meet the requirements of the height and width restrictions for the erection of double-layer cast-in-place beams. Utility Model Content

[0005] In view of this, the utility model provides a bridge erection machine that can meet the requirements of double-layer cast-in-place beam erection with limited height and width, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the present invention is achieved as follows: a bridge-building machine that can meet the requirements of double-layer cast-in-place beam height and width limit beam erection construction, includes a machine arm, a No. 1 column, a No. 2 column, a No. 3 column, a suspended curved beam and a beam crane, wherein the No. 1 column is installed on the front lower ear beam of the machine arm, the No. 1 column is fixedly connected to the machine arm through a gear rack, the No. 2 column is installed on the upper ear beam of the machine arm, the No. 2 column is fixedly connected to the machine arm through a gear rack, and the No. 3 column is installed on the rear end bottom surface of the machine arm, an anchoring beam is provided on one side of the machine arm, and two front and rear beam transport vehicles are provided below the machine arm, a suspended curved beam is installed on one side of the upper ear beam of the machine arm, the beam crane is slidably connected to the machine arm through a gear rack, a vertical transfer bracket is fixed on the beam transport vehicle, the transfer bracket can be raised and lowered and locked, and the top of the transfer bracket has a card slot for engaging with the machine arm.

[0007] Further preferably, the third column is fixedly connected to the machine arm via a hinge seat.

[0008] Further preferably, the beam transport vehicle carries the bridge erection machine through the hole via a transfer bracket.

[0009] Further preferably, a tail bracket is installed on one side of the arm.

[0010] Further preferably, the suspension curved beam is fixedly connected to the machine arm through a gear rack, and the machine arm is driven forward through the No. 1 column and the suspension curved beam.

[0011] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0012] 1. The utility model is suitable for the use of the bridge erection machine in the working condition of limited width of the upper cast-in-situ beam of the double-layer beam, and limited height of the lower beam. It can realize the low clearance height of the lower beam in the double-layer beam working condition, and can realize the narrow width space of the lower beam in the double-layer beam working condition.

[0013] 2. The utility model adopts an anchored suspended curved beam to replace the No. 2 column to hang the machine arm, so as to realize the requirements of the bridge-building machine for passing through holes and erecting beams, and the double-layer beam working condition of the portal pier. The traditional bridge-building machine cannot make the upper beam first, and the lower beam adopts low clearance to erect the beam, and cannot make the upper beam first, and the narrow width between the pier columns of the portal pier is erected.

[0014] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a diagram of the contracted structure of the transport bracket in the present utility model;

[0018] Figure 3 This is a diagram of the support structure of column No. 1 in the present utility model;

[0019] Figure 4 This is a diagram of the support structure of the third column in the present utility model;

[0020] Figure 5 This is a schematic diagram of the working example of the present utility model;

[0021] Figure 6 This is a schematic diagram of the second working example of the present utility model;

[0022] Figure 7 This is a schematic diagram of the working three in the embodiment of the present utility model;

[0023] Figure 8 This is a schematic diagram of the working four in the embodiment of the present utility model;

[0024] Figure 9 This is a schematic diagram of working five in an embodiment of the present utility model;

[0025] Figure 10 This is a schematic diagram of the working six in the embodiment of the present utility model;

[0026] Figure 11 This is a schematic diagram of the working seven in the embodiment of the present utility model;

[0027] Figure 12 This is a schematic diagram of the working eight in the embodiment of the present utility model;

[0028] Figure 13 This is a schematic diagram of working nine in an embodiment of the present utility model;

[0029] Figure 14 This is a schematic diagram of the working process in the embodiment of the present utility model;

[0030] Figure 15 This is a schematic diagram of the working example 11 of the present utility model;

[0031] Figure 16 12 schematic diagrams of the working of the embodiment of the present utility model;

[0032] Figure 17 This is a schematic diagram of the working example of the present invention;

[0033] Figure 18 14 is a schematic diagram of the working of an embodiment of the present utility model.

[0034] Figure numerals: 1. Arm; 2. Column No. 1; 3. Column No. 2; 4. Column No. 3; 5. Suspension curved beam; 6. Anchoring beam; 7. Beam crane; 8. Tail bracket; 9. Transfer bracket; 10. Beam transport vehicle. DETAILED DESCRIPTION

[0035] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0036] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] like Figure 1-4 As shown, the embodiment of the utility model provides a bridge erection machine that can meet the requirements of double-layer cast-in-place beam construction with limited height and width, and is composed of a machine arm 1, a first column 2, a second column 3, a third column 4, a suspended curved beam 5, an anchoring beam 6, a beam crane 7, a tail bracket 8, a transfer bracket 9 and a beam transporter 10;

[0038] The first column 2 passes through the lower ear beam at the front end of the machine arm 1, supports the machine arm 1 at the front end, and is fixed to the machine arm 1 through a gear rack; the second column 3 passes through the upper ear beam of the machine arm 1, supports the machine arm 1 in the middle, and is fixed to the machine arm 1 through a gear rack; the third column 4 is installed on the bottom surface of the rear end of the machine arm 1, supports the machine arm 1 at the rear end, and is fixed to the machine arm 1 through a hinge seat; the crane 7 passes through the lower ear beam at the front end of the machine arm 1, and moves on the machine arm 1 through a gear rack; the suspension curved beam 5 passes through the upper ear beam of the machine arm 1, hangs in the middle of the machine arm 1, and is fixed to the machine arm 1 through a gear rack. The rack is fixed to the arm 1; the anchoring beam 6 is provided on one side of the arm 1, and the anchoring beam 6 is placed on the cast-in-place beam by a crane; the tail bracket 8 is installed at the tail end of the arm 1, and the tail bracket 8 is provided with a generator set and a distribution box; the transfer bracket 9 is installed on the beam transport vehicle 10, which is used to carry the bridge erection machine through the hole. The transfer bracket 9 can be raised and lowered and locked. The top of the transfer bracket 9 has a slot that is engaged with the arm 1. The arm 1 falls downward into the slot on the top of the transfer bracket 9, and the arm 1 is limited during the transfer process.

[0039] In one embodiment, after the first column 2 and the second column 3 support the arm 1 to erect the last beam of the cast-in-place beam, the bridge erection machine needs to remove the second column 3 and install the suspended curved beam 5.

[0040] In one embodiment, the bridge erection machine is carried to the first hole beam position of the cast-in-place beam by placing a transfer bracket 9 on the beam transport vehicle 10, and the hanging curved beam 5 is passed through the reserved hole of the cast-in-place beam by the fine-rolled threaded steel bar, and connected to the anchor beam 6 placed on the cast-in-place beam, so that the machine arm 1 is suspended from above.

[0041] In one embodiment, after the arm 1 is fixed by the No. 1 column 2 and the suspended curved beam 5, the beam transport vehicle 10 carries the beam piece into the tail of the bridge erection machine to realize the beam erection operation.

[0042] In one embodiment, the arm 1 can be driven forward to pass through the hole and into position through the No. 1 column 2 and the suspension curved beam 5; after supporting the No. 3 column 4, the suspension curved beam 5 releases the anchoring of the finished rolled threaded steel bar and moves forward to the next hole lifting position by itself.

[0043] When the utility model is working:

[0044] 1. As Figure 5 As shown, after the bridge erection machine enters the last hole of the cast-in-place beam and erects the beam, the beam transport vehicle 10 carrying the transport bracket 9 enters the tail of the bridge erection machine;

[0045] 2. If Figure 6 As shown, the front beam transport vehicle 10 is lifted over the second column 3 by the beam crane 7, the transfer bracket 9 is raised, the bridge erection machine is dropped onto the transfer bracket 9, and the bridge erection machine is carried to a spacious area or the beam lifting machine position;

[0046] 3. Figure 7 As shown, use a beam lifting machine or truck crane to remove the second column 3. Install the hanging curved beam 5 from the front end of the machine arm 1. Use a crane to place the anchor beam 6 on the cast-in-place beam;

[0047] 4. Figure 8 As shown, the beam transport vehicle 10 carries the bridge erection machine to the cast-in-place beam erection position. Simultaneously, the No. 1 column 2 and the transfer support 9 are lifted, securing the suspension curved beam 5 against the continuous beam. Finished rolled rebar is installed, and the anchor beam 6 is securely connected to the suspension curved beam 5. Columns 1 and 3 4 are supported, and the front transfer support 9 is lowered away from the machine arm 1.

[0048] 5. If Figure 9 As shown, the first column 2 and the suspension curved beam 5 synchronously drive the arm 1 forward 32.7m. The beam transport vehicle 10 synchronously moves forward to the position. Support the third column 4;

[0049] 6. If Figure 10 As shown, column 2 is retracted and moved forward 32.7m to reach column 2 at the rear support of the front pier;

[0050] 7. If Figure 11 As shown, the third column 4 is retracted and turned backward, the beam transport vehicle 10 exits the bridge erection machine, returns to the beam yard and enters the tail end of the bridge erection machine after carrying the beam;

[0051] 8. If Figure 12 As shown, the third column 4 is supported on the rear beam transport vehicle 10, and the front and rear beam cranes 7 move the beams backward;

[0052] 9. If Figure 13 As shown, the front and rear beam cranes 7 move forward synchronously to their proper positions and then drop the beams, completing the beam erection.

[0053] 10. If Figure 14 As shown, the third column 4 flips backwards and the beam transporter 10 exits the bridge erection machine. The first column 2 and the suspension curved beam 5 synchronously drive the machine arm 1 forward 32.7m. Support the third column 4;

[0054] 11. If Figure 15 As shown, the finished rolled threaded steel bars on the suspension curved beam 5 are removed. The anchor beam 6 is transported to the top of the front abutment by a crane;

[0055] 12. If Figure 16 As shown, the suspension curved beam 5 moves forward to the top of the front pier, and the finished rolled threaded steel bar is installed and firmly connected to the anchor beam 6;

[0056] 13. If Figure 17As shown, the front and rear cranes 7 are retracted to the rear of the boom 1. Column 2 is retracted and driven forward 32.7m to the front pier, supporting column 2. The hole is completed.

[0057] 14. If Figure 18 As shown, the bridge erection machine repeats the previous beam erection and hole-passing processes to complete the erection of other beams;

[0058] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A bridge erecting machine capable of erecting double-layer cast-in-place beams within limited height and width requirements, characterized by: The invention comprises a machine arm (1), a first column (2), a second column (3), a third column (4), a suspension curved beam (5) and a beam crane (7), wherein the first column (2) is mounted on the front lower ear beam of the machine arm (1), the first column (2) is fixedly connected to the machine arm (1) via a gear rack, the second column (3) is mounted on the upper ear beam of the machine arm (1), the second column (3) is fixedly connected to the machine arm (1) via a gear rack, and the third column (4) is mounted on the rear bottom surface of the machine arm (1). On one side of the machine arm (1), an anchoring crossbeam (6) is provided. Two front and rear beam transport vehicles (10) are provided below the machine arm (1). A hanging curved beam (5) is installed on one side of the upper ear beam of the machine arm (1). The beam crane (7) is slidably connected to the machine arm (1) through a gear rack. A vertical transfer bracket (9) is fixed on the beam transport vehicle (10). The transfer bracket (9) can be raised and lowered and locked. The top of the transfer bracket (9) has a card slot for carding with the machine arm (1).

2. The bridge erecting machine capable of erecting double-layer cast-in-situ beams with limited height and width according to claim 1 is characterized in that: The third column (4) is fixedly connected to the machine arm (1) via a hinge seat.

3. The bridge erecting machine capable of erecting double-layer cast-in-situ beams with limited height and width according to claim 1 is characterized in that: The beam transport vehicle (10) carries the bridge erection machine through the hole via the transfer bracket (9).

4. The bridge erecting machine capable of erecting double-layer cast-in-situ beams with limited height and width according to claim 1 is characterized in that: A tail bracket (8) is installed on one side of the machine arm (1).

5. The bridge erecting machine capable of erecting double-layer cast-in-situ beams with limited height and width according to claim 1 is characterized in that: The suspension curved beam (5) is fixedly connected to the machine arm (1) via a gear rack, and the machine arm (1) is driven to move forward via the No. 1 column (2) and the suspension curved beam (5).

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