阅读说明：本技术 一种桥梁用大吨位吊装装置 (Large-tonnage hoisting device for bridge ) 是由 李建忠 狄鑫 邹文靖 马静茹 任喜强 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种桥梁用大吨位吊装装置,包括两个龙门吊和一个纵向滑道,两个龙门吊的底部均固定设有钢筋混凝土柱,纵向滑道的底部也固定设有若干个钢筋混凝土柱,若干个钢筋混凝土柱均插接固定在地面中,纵向滑道的顶部设置有平板车,两个龙门吊均与平板车垂直设置,且两个龙门吊分别位于平板车两端的顶部。本发明通过两个龙门吊将需要进行安装的桥梁从运输汽车上吊起,运送到平板车的顶部,接着通过卷扬机收卷钢丝绳对平板车进行拉动,进而对需要进行安装的桥梁进行搬运相比于传统的履带吊而言,整体重量较小,对于施工空间和场地的地基承载力要求较低,适应性较强,可以适用于大多数的安装现场。(The invention discloses a large-tonnage hoisting device for a bridge, which comprises two gantry cranes and a longitudinal slideway, wherein reinforced concrete columns are fixedly arranged at the bottoms of the two gantry cranes, a plurality of reinforced concrete columns are also fixedly arranged at the bottom of the longitudinal slideway, the reinforced concrete columns are fixedly inserted into the ground, a flat car is arranged at the top of the longitudinal slideway, the two gantry cranes are vertically arranged with the flat car, and the two gantry cranes are respectively positioned at the tops of two ends of the flat car. According to the invention, the bridge to be installed is lifted from the transport vehicle by the two gantry cranes and conveyed to the top of the flat car, then the steel wire rope is wound by the winch to pull the flat car, and then the bridge to be installed is conveyed, compared with the traditional crawler crane, the whole weight is smaller, the requirement on the bearing capacity of the foundation of a construction space and a site is lower, the adaptability is stronger, and the method can be suitable for most installation sites.)

1. A large-tonnage hoisting device for a bridge comprises two gantry cranes (1) and a longitudinal slideway (2), and is characterized in that reinforced concrete columns (3) are fixedly arranged at the bottoms of the two gantry cranes (1), a plurality of reinforced concrete columns (3) are also fixedly arranged at the bottom of the longitudinal slideway (2), the plurality of reinforced concrete columns (3) are fixedly inserted and fixed in the ground, a flat car (4) is arranged at the top of the longitudinal slideway (2), the two gantry cranes (1) are vertically arranged with the flat car (4), the two gantry cranes (1) are respectively arranged at the tops of two ends of the flat car (4), rollers (5) are fixedly arranged at two sides of the bottom end of the flat car (4), walking rails (6) are fixedly arranged at two sides of the top of the longitudinal slideway (2), and the rollers (5) are matched with the walking rails (6), and the bottom of the roller (5) is tightly attached to the top end of the walking track (6), the end part of the longitudinal slide (2) far away from one end of the gantry crane (1) is fixedly provided with a pier body (7), one side of the top of the pier body (7) close to the longitudinal slide (2) is fixedly provided with a winch (8), and the winch (8) is fixedly connected with the end part of the flat car (4) through a steel wire rope (9).

2. The large-tonnage hoisting device for the bridge as recited in claim 1, wherein the longitudinal slide (2) comprises a plurality of steel tube columns (201) and a plurality of channel steels (202), the plurality of steel tube columns (201) are divided into two rows, the bottom ends of the two rows of steel tube columns (201) are fixedly provided with reinforced concrete columns (3), and the plurality of steel tube columns (201) are fixedly connected through the plurality of channel steels (202).

3. The large-tonnage hoisting device for the bridge as recited in claim 1, wherein the crane on the gantry crane (1) is provided with a movable pulley (10) by a rope, the bottom end of the movable pulley (10) is fixedly provided with a hook (11), and the hook (11) is provided with a binding rope (12) in a hanging manner.

4. The large-tonnage hoisting device for the bridge as recited in claim 1, wherein eight wheel grooves are formed in the movable pulley (10), and a rope of a crane on the gantry crane (1) sequentially passes through the eight wheel grooves.

5. The large-tonnage hoisting device for the bridge as recited in claim 1, wherein there are a plurality of said rollers (5), and a plurality of said rollers (5) are equally spaced at the bottom of the flat car (4).

6. The large-tonnage hoisting device for the bridge as recited in claim 1, wherein fixed pulleys (13) are fixedly arranged at the top and the bottom of the longitudinal slideway (2) near one end of the winch (8), and the steel wire rope (9) sequentially passes through the two fixed pulleys (13).

Technical Field

The invention relates to a hoisting device, in particular to a large-tonnage hoisting device for a bridge.

Background

The steel structure bridge is generally very heavy, and generally, 400 tons to 800 tons of crawler cranes are adopted for hoisting, but the crawler cranes have extremely high requirements on the bearing capacity of the foundation of a construction space and a site, have low adaptability and cannot be applied to most installation sites. Therefore, the improvement is made, and the large-tonnage hoisting device for the bridge is provided.

Disclosure of Invention

In order to solve the technical problems, the invention provides the following technical scheme:

the invention relates to a large-tonnage hoisting device for a bridge, which comprises two portal cranes and a longitudinal slideway, wherein reinforced concrete columns are fixedly arranged at the bottoms of the two portal cranes, a plurality of reinforced concrete columns are also fixedly arranged at the bottom of the longitudinal slideway, a plurality of reinforced concrete columns are fixedly inserted into the ground, a flat car is arranged at the top of the longitudinal slideway, the two portal cranes are vertically arranged with the flat car and are respectively positioned at the tops of two ends of the flat car, rollers are fixedly arranged at two sides of the bottom end of the flat car, walking rails are fixedly arranged at two sides of the top of the longitudinal slideway, the rollers are matched with the walking rails, the bottom ends of the rollers are tightly attached to the top ends of the walking rails, and the end part of the longitudinal slideway, which is far away from one end of the portal cranes, where a pier body is fixedly arranged on the ground, and a winch is fixedly arranged on one side, close to the longitudinal slide way, of the top of the pier body and is fixedly connected with the end part of the flat car through a steel wire rope.

As a preferred technical scheme of the invention, the longitudinal slide comprises a plurality of steel tube upright columns and a plurality of channel steels, the plurality of steel tube upright columns are divided into two rows, reinforced concrete columns are fixedly arranged at the bottom ends of the two rows of steel tube upright columns, and the plurality of steel tube upright columns are fixedly connected through the plurality of channel steels.

As a preferable technical scheme of the invention, the crane on the gantry crane is provided with a movable pulley through a rope crane, the bottom end of the movable pulley is fixedly provided with a lifting hook, and a binding rope is hung on the lifting hook.

As a preferable technical scheme of the invention, eight wheel grooves are formed in the movable pulley, and a rope of the crane on the gantry crane sequentially passes through the eight wheel grooves.

As a preferable technical scheme of the invention, the number of the rollers is several, and the several rollers are distributed at the bottom of the flat car at equal intervals.

As a preferable technical scheme of the invention, the top and the bottom of one end of the longitudinal slideway, which is close to the winch, are both fixedly provided with fixed pulleys, and the steel wire rope sequentially passes through the two fixed pulleys.

The invention has the beneficial effects that: this kind of large-tonnage hoist device for bridge, the bridge that will install through two portal cranes is hoisted from the haulage vehicle, transports the top of flatbed, pulls the flatbed through hoist engine rolling wire rope after that, and then carries the bridge that needs were installed, this kind of transport mode is compared in traditional crawler crane, whole weight is less, and the foundation bearing capacity requirement to construction space and place is lower, and adaptability is stronger, can be applicable to the most installation site.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a large-tonnage hoisting device for a bridge, which is disclosed by the invention;

FIG. 2 is a schematic side view of the end of the large-tonnage hoisting device for a bridge, which is far away from a gantry crane, in the invention;

FIG. 3 is a schematic structural view of the front end of the large-tonnage hoisting device for a bridge, which is disclosed by the invention;

FIG. 4 is a schematic structural view of an end part of the large-tonnage hoisting device for the bridge in the working process;

FIG. 5 is an enlarged structural view of a longitudinal slideway structure of the large-tonnage hoisting device for a bridge.

In the figure: 1. a gantry crane; 2. a longitudinal slideway; 201. a steel pipe upright post; 202. channel steel; 3. a reinforced concrete column; 4. flatbed vehicle; 5. a roller; 6. a traveling rail; 7. a pier body; 8. a winch; 9. a wire rope; 10. a movable pulley; 11. a hook; 12. bundling the ropes; 13. and a fixed pulley.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.