Large-tonnage segmental assembly bridge erecting machine end hanging

Abstract

This invention discloses a large-tonnage segmental bridge erection machine end-mounted suspension system, comprising a main crossbeam and a lifting beam. A transverse beam is slidably connected to the main crossbeam, and a transverse mechanism is provided above the main crossbeam. The transverse mechanism drives the transverse beam to move laterally on the main crossbeam. A secondary lifting device is provided between the lifting beam and the main crossbeam, and the secondary lifting device is connected to the transverse beam via a connecting rod. A lifting mechanism is provided between the secondary lifting device and the lifting beam, and the lifting mechanism drives the lifting beam to move longitudinally. By setting up the secondary lifting device and the lifting mechanism, with the lifting mechanism installed inside the secondary lifting device and connected to the lifting beam, and by controlling the lifting mechanism to drive the lifting beam to move longitudinally, this invention can be applied to special working conditions such as height restrictions in urban rail transit, such as height restrictions in urban areas with high-voltage lines and other facilities.

Description

Technical Field

[0001] This invention relates to the field of bridge erecting machine technology, and in particular to a large-tonnage segmental assembly bridge erecting machine end hanger. Background Technology

[0002] With the development of urban rail transit, there are special working conditions for urban rail transit to meet the requirements of road construction in limited space, such as the presence of high-voltage lines in the city. Construction in urban areas must meet height restrictions so that construction equipment can pass through the boundaries smoothly. This requires bridge erecting machines to be able to adapt to these special extreme working conditions.

[0003] If the bridge erecting machine is to be able to adapt to the special working conditions of height restriction, the end suspension of the bridge erecting machine needs to meet the height restriction requirements. Therefore, an end suspension that meets the height restriction requirements is needed. Summary of the Invention

[0004] This invention addresses the problems existing in the prior art by providing a large-tonnage segmental bridge erection machine end suspension.

[0005] The technical solution adopted to achieve the above objectives is:

[0006] A large-tonnage segmental bridge erection machine end-mounted hoist includes a main crossbeam and a lifting beam. The main crossbeam is characterized by a slidably connected transverse beam, a transverse mechanism located above the main crossbeam that drives the transverse beam to move laterally on the main crossbeam, a secondary lifting device between the lifting beam and the main crossbeam, the secondary lifting device being connected to the transverse beam via a connecting rod, and a lifting mechanism between the secondary lifting device and the lifting beam that drives the lifting beam to move longitudinally.

[0007] Furthermore, the transverse movement mechanism includes a first hydraulic cylinder and a transverse movement groove. The transverse movement groove is opened at both ends of the main crossbeam, and the connecting rod passes through the transverse movement groove. The first hydraulic cylinder is fixedly mounted on one side of the main crossbeam, and the output end of the first hydraulic cylinder is connected to one end of the transverse movement beam.

[0008] Furthermore, there are four connecting rods, each located at one of the four corners of the transverse beam, and four transverse grooves are provided, which are arranged to match the positions of the connecting rods.

[0009] Furthermore, the secondary lifting device includes a central crossbeam, of which there are two and located below both ends of the main crossbeam. Each central crossbeam is fixed by two connecting rods located at one end of the transverse beam.

[0010] Furthermore, the central crossbeam is a single box girder structure.

[0011] Furthermore, the lifting mechanism is provided in four sets, and two sets of lifting mechanisms are provided opposite each other in each central crossbeam;

[0012] Each lifting mechanism includes a hydraulic through-hole jack and a first lifting rod. Each central crossbeam has an installation groove for the hydraulic through-hole jack. The hydraulic through-hole jack is fixedly installed in the installation groove. The first lifting rod is installed inside the hydraulic through-hole jack, and one end of the first lifting rod is fixed to the lifting beam.

[0013] Furthermore, both the connecting rod and the first lifting rod are precision-rolled threaded steel bar lifting rods.

[0014] Furthermore, a lifting mechanism is provided below the lifting beam;

[0015] The hoisting mechanism includes four second lifting rods, which are arranged parallel to each other on the lifting beam. The other end of each second lifting rod is fixedly connected to the whole beam.

[0016] Furthermore, the hoisting mechanism is provided in two sets, and the two sets of hoisting mechanisms are arranged opposite each other on the hoisting beam.

[0017] Furthermore, the second boom is made of 40CrNiMo material.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The present invention, through the setting of a secondary lifting device and a lifting mechanism, wherein the lifting mechanism is installed inside the secondary lifting device and connected to the lifting device crossbeam, and by controlling the lifting mechanism to drive the lifting device crossbeam to move longitudinally, makes the present invention applicable to special working conditions such as height restrictions in urban rail transit, such as height restrictions in urban areas with facilities such as high-voltage lines.

[0020] 2. The device of the present invention is equipped with a transverse movement mechanism, which can drive the transverse movement beam to move along the main crossbeam, thereby driving the lower lifting beam to move laterally, thus increasing the lateral movement of the end hanging, so as to facilitate the adjustment of the alignment of the whole beam when it is lowered.

[0021] 3. The power system in the device of this invention adopts hydraulic control. The bridge erecting machine has a large span and frequent side span construction. The winch has a large self-weight. Side span construction is not as flexible as the end-hanging hydraulic system of this invention. In addition, only minor adjustments are needed for operations such as alignment when lowering the whole span beam. Furthermore, the hydraulic cylinder has a light self-weight, and the reaction force transmitted to the outrigger is small, reducing the impact of construction load on concrete beams and piers. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the device structure of the present invention;

[0023] Figure 2 The device of the present invention Figure 1 Sectional view at point AA;

[0024] Figure 3 The device of the present invention Figure 1 Sectional view at point BB;

[0025] Figure 4 This is a schematic diagram of the transverse beam structure of the device of the present invention;

[0026] Figure 5 This is a schematic diagram of the main crossbeam structure of the device of the present invention;

[0027] Figure 6 This is a schematic diagram of the crossbeam structure in the middle of the device of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the lifting beam of the device of the present invention.

[0029] Among them, 1-main crossbeam, 2-lateral beam, 3-middle crossbeam, 4-lifting beam, 5-lateral movement mechanism, 501-hydraulic cylinder, 502-lateral movement groove, 6-lifting mechanism, 601-hydraulic through-hole jack, 602-installation groove, 603-first lifting rod, 7-lifting mechanism, 701-second lifting rod, 8-connecting rod, 9-full-hole beam.

[0030] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] like Figure 1-7 As shown, this embodiment discloses a large-tonnage segmental bridge erection machine end-hanger, including a main crossbeam 1, a transverse beam 2 slidably connected to the main crossbeam 1, the main crossbeam 1 and the transverse beam 2 are connected by a transverse mechanism 5, the transverse mechanism 5 drives the transverse beam 2 to move laterally along the upper surface of the main crossbeam 1, the transverse beam 2 and the middle crossbeam 3 are fixedly connected by connecting rods 8, and there are four connecting rods 8, which are distributed around the transverse beam 2. There are two middle crossbeams 3, which are respectively located on both sides below the transverse beam 2, and a lifting mechanism 6 is located inside the middle crossbeam 3, and the lifting mechanism 6 is connected to the lifting beam 4. The lifting mechanism 6 can drive the lifting beam 4 to move vertically. A hoisting mechanism 7 is fixedly installed on the lifting beam 4, and the lifting beam 4 is fixedly hoisted to the whole span beam 9 through the hoisting mechanism 7. In this embodiment, the connecting rod 8 is a finely rolled threaded steel bar hoisting rod.

[0033] like Figure 1-5As shown, the transverse movement mechanism 5 includes a first hydraulic cylinder 501 and a transverse movement groove 502. A hydraulic cylinder mounting bracket is provided in the middle of one side of the main crossbeam 1, and one side of the first hydraulic cylinder 501 is mounted on the hydraulic cylinder mounting bracket. The output end of the first hydraulic cylinder 501 is connected to the middle of one end of the transverse movement beam 2. At the same time, the first hydraulic cylinder 501 is set horizontally, and the control of the first hydraulic cylinder 501 can drive the transverse movement beam 2 to move laterally on the main crossbeam 1. The transverse movement groove 502 is opened on the main crossbeam 1, and four connecting rods 8 pass through the corresponding transverse movement grooves 502 respectively, so that while the first hydraulic cylinder 501 drives the transverse movement beam 2 to move, it can also drive the middle crossbeam to move, and then drive the lifting beam 4 to move.

[0034] like Figure 1-6 As shown, the lifting mechanism 6 includes a hydraulic through-type jack 601 and a first lifting rod 603. There are four sets of lifting mechanisms 6, with two sets located within each central crossbeam 3. Each central crossbeam 3 has two opposite mounting slots 602 for installing the hydraulic through-type jack 601. The hydraulic through-type jack 601 is vertically positioned within the mounting slot 602. One end of the first lifting rod 603 is fixedly connected to one corner of the lifting beam 4, meaning the four first lifting rods 603 are respectively fixedly connected to the four corners of the lifting beam 4. The first lifting rod 603 is installed inside the hydraulic through-type jack 601. The hydraulic through-type jack 601 drives the first lifting rod 603 to move up and down, thereby driving the lifting beam 4 to move longitudinally, and then driving the whole beam 9 to move up and down, so as to meet the height restriction conditions during transportation. The main beam 1 and the transverse beam 2 have through holes at the position of the first lifting rod 603. After the first lifting rod 603 moves up to a certain height, it will pass through the main beam 1 and the transverse beam 2 in sequence. In this embodiment, the first lifting rod 603 is a fine-rolled threaded steel bar lifting rod.

[0035] like Figure 1-3 As shown, there are two sets of hoisting mechanisms 7, which are fixedly mounted on the lifting beam 4. Each set of hoisting mechanisms 7 includes four second lifting rods 701. The four second lifting rods 701 are parallel to each other on the lifting beam 4. The other end of the four second lifting rods 701 is fixedly connected to the whole hole beam 9. In this embodiment, the material of the second lifting rods 701 is 40CrNiMo.

[0036] like Figure 4-5 As shown, the transverse beam 2 is a double box girder rectangular structure. Both ends and the middle of the transverse beam 2 are also double box girder rectangular structures and are connected as a whole. The transverse beam 2 can slide above the main transverse beam 1, thereby driving the entire beam below to move laterally. The main transverse beam 1 is also a double box girder rectangular structure. The main transverse beam 1 is mainly used to bear the weight of the beam, thereby completing the lowering of the entire beam 9.

[0037] like Figure 6-7As shown, the middle crossbeam 3 is a single box girder structure, serving as an intermediate medium between the upper and lower crossbeams and as a secondary lifting device in the device. The middle crossbeam 3 can effectively solve the problem of special working conditions with height restrictions in urban rail transit. The lifting device crossbeam 4 is a single box girder structure and is used to lift the entire beam 9.

[0038] When the end-hanging device of this invention is used in conjunction with a bridge erecting machine, a single machine is equipped with two end-hanging devices. The end-hanging devices are mainly responsible for lowering the entire span beam 9. The bridge erecting machine relies on outriggers to support the boom. The overhead crane lifts the beam segments one by one and suspends them below the end-hanging devices. After the span beam is suspended, the overhead crane and the end-hanging devices work together to align, glue, and tension the beam segments, so that the span beam becomes a whole. The end-hanging devices first lift the entire span beam, the middle suspension is unloaded and detached, and the rear end-hanging devices then lower the entire span beam into place on the temporary support.

[0039] When aligning the hole in the beam 9, the first hydraulic cylinder 501 is controlled to drive the transverse beam 2 to move laterally on the main beam 1. The transverse groove 502 is opened on the main beam 1, and the four connecting rods 8 pass through the corresponding transverse grooves 502 respectively. This allows the first hydraulic cylinder 501 to drive the transverse beam 2 to move, while also driving the middle beam 3 to move, and in turn driving the lifting beam 4 to move.

[0040] When the end-hanger is used in height-restricted conditions, the hydraulic through-hole jack 601 drives the first lifting rod 603 to move longitudinally, thereby driving the lifting beam 4 to move longitudinally, so as to lift the entire beam 9. This makes it suitable for special conditions such as height restrictions in urban rail transit.

[0041] In the description of this invention, it should be understood that the terms "center", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this invention and to simplify the description, and do not 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 limiting the scope of protection of this invention.

[0042] If the terms "first" or "second" are used in this document to define components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing the invention and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention 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 of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large-tonnage segmental bridge erection machine end-mounted suspension system, comprising a main crossbeam and a lifting beam, characterized in that, A transverse beam is slidably connected to the main crossbeam. A transverse mechanism is provided above the main crossbeam. The transverse mechanism drives the transverse beam to move laterally on the main crossbeam. A secondary lifting device is provided between the lifting device crossbeam and the main crossbeam. The secondary lifting device is connected to the transverse beam by a connecting rod. A lifting mechanism is provided between the secondary lifting device and the lifting device crossbeam. The lifting mechanism drives the lifting device crossbeam to move longitudinally. The transverse movement mechanism includes a hydraulic cylinder and a transverse movement groove. The transverse movement groove is opened at both ends of the main crossbeam. The connecting rod passes through the transverse movement groove. The hydraulic cylinder is fixedly installed on one side of the main crossbeam, and the output end of the hydraulic cylinder is connected to one end of the transverse movement beam. There are four connecting rods, which are respectively located at the four corners of the transverse beam. There are four transverse grooves, which are set in accordance with the positions of the connecting rods. The secondary lifting device includes a central crossbeam. There are two central crossbeams, which are located below both ends of the main crossbeam. Each central crossbeam is fixed by two connecting rods located at one end of the transverse beam. The lifting mechanism is provided in four sets, and two sets of lifting mechanisms are provided opposite each other in the middle crossbeam. Each lifting mechanism includes a hydraulic through-hole jack and a first lifting rod. Each central crossbeam has an installation groove for the hydraulic through-hole jack. The hydraulic through-hole jack is fixedly installed in the installation groove. The first lifting rod is installed inside the hydraulic through-hole jack, and one end of the first lifting rod is fixed to the lifting beam.

2. The end-mounted suspension system for a large-tonnage segmental bridge erection machine according to claim 1, characterized in that, The central crossbeam is a single box girder structure.

3. The end-mounted suspension of a large-tonnage segmental bridge erection machine according to claim 1, characterized in that, Both the connecting rod and the first lifting rod are precision-rolled threaded steel bar lifting rods.

4. The end-mounted suspension system for a large-tonnage segmental bridge erection machine according to claim 1, characterized in that, A lifting mechanism is provided below the crossbeam of the lifting device; The hoisting mechanism includes four second lifting rods, which are arranged parallel to each other on the lifting beam. The other end of each second lifting rod is fixedly connected to the whole beam.

5. The end-mounted suspension of a large-tonnage segmental bridge erection machine according to claim 4, characterized in that, The hoisting mechanism consists of two sets, which are positioned opposite each other on the hoisting beam.

6. The end-mounted suspension of a large-tonnage segmental bridge erection machine according to claim 5, characterized in that, The material of the second boom is 40CrNiMo.

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