CN107381345B

CN107381345B - Gantry crane anti-tilt reinforcing device

Info

Publication number: CN107381345B
Application number: CN201710730731.5A
Authority: CN
Inventors: ***; 龚楠富; 汤如意; 王进平; 柏刚; 周琴; 叶南勇
Original assignee: Sixth Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Current assignee: Sixth Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Priority date: 2017-08-23
Filing date: 2017-08-23
Publication date: 2020-01-07
Anticipated expiration: 2037-08-23
Also published as: CN107381345A

Abstract

The invention discloses a door crane anti-tilt reinforcing device, which comprises an earth anchor structure and a tensile structure, wherein the earth anchor structure comprises a base steel plate and base channel steel; the invention effectively solves the problems that the portal crane slips along the direction of the running line and derails and overturns at the car stopper at the end of the running line, thereby protecting the safety of personnel and equipment.

Description

Gantry crane anti-tilt reinforcing device

Technical Field

The invention belongs to the technical field of anchoring devices, and particularly relates to an overturn-preventing reinforcing device structure of a gantry crane of a subway track-laying base under extreme strong wind weather conditions.

Background

A portal crane used in an urban rail transit track laying base is characterized in that a traveling line of the portal crane mainly adopts a buckle plate to fix a P50 or P60 steel rail on a concrete strip foundation. The longitudinal gradient of the walking line is generally a flat slope, and the maximum gradient is not more than 2 per thousand. Because the track laying base is often arranged in a region with dense urban population and buildings, under the condition of extreme strong wind, if the gantry crane slips along the direction of a travelling line, the gantry crane is easy to derail and overturn at a car stopper at the end of the travelling line, and serious disasters and property losses are caused to surrounding personnel and buildings.

Disclosure of Invention

The technical problem solved by the invention is as follows: the utility model provides a portal crane prevents inclining reinforcing apparatus, has solved portal crane and has taken place along the smooth and easy of line direction of walking and take place the problem that the derail topples at the stopper department of line end of walking.

The technical scheme adopted by the invention is as follows: the utility model provides a portal crane prevents tilting reinforcing apparatus, including earth anchor structure and tensile structure, the earth anchor structure includes base steel sheet and base channel-section steel, tensile structure includes the structure channel-section steel, tensile steel sheet and tensile anchor head, base steel sheet fixed connection is subaerial in walking rail one side, its up end symmetry fixedly connected with two base channel-section steels, two base channel-section steels of symmetry form upper end open-ended cavity structure, and arrange along the rail direction, structure channel-section steel fixed connection is on portal crane walks capable grade beam, free end downside fixedly connected with tensile steel sheet, tensile steel sheet lower extreme fixedly connected with tensile anchor head, tensile anchor head can arrange in the cavity structure of upper end open-ended earth anchor structure along with after the hoist walking.

Preferably, the back of the base channel steel is welded with a plurality of 7-shaped reinforced steel plates, and the reinforced steel plates are respectively welded and fixed with the base channel steel and the base steel plate.

Preferably, the base steel plate is fixedly connected to the ground through an anchoring hook head bolt, and the anchoring hook head bolt is embedded in the strip-shaped concrete foundation of the travelling rail of the gantry crane.

Preferably, the ground anchor structure is arranged at the tail end of a running line of the portal crane.

Preferably, a steel plate is additionally welded between the structural channel steel and the tensile steel plate.

Preferably, the ground anchor structure and the tensile structure are provided with two pairs, and the two pairs are respectively positioned at two sides of the running rail.

The invention has the beneficial effects that: compared with the prior art, the anti-overturning device has the advantages that the tensile anchor head part of the tensile member of the tensile structure stretches into the ground anchor structure, once the crane is in an overturning state, the anti-overturning reinforcing device inevitably generates a counter moment for resisting overturning, so that the safety of personnel and equipment is protected, and the problems that the portal crane slips along the direction of a travelling line and derails and overturns at a car stopper at the end of the travelling line are effectively solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the present invention;

fig. 3 is a schematic structural diagram of the device for the crane.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

Example 1: as shown in figures 1-3, the anti-tilting reinforcement device for the gantry crane comprises an earth anchor structure 1 and a tensile structure 2, wherein the earth anchor structure 1 comprises a base steel plate 1-1 and a base channel steel 1-2, the tensile structure 2 comprises a structure channel steel 2-1, a tensile steel plate 2-2 and a tensile anchor head 2-3, the base steel plate 1-1 is fixedly connected to the ground on one side of a walking rail 5, the upper end surface of the base steel plate is symmetrically and fixedly connected with the two base channel steels 1-2 in a welding mode, the two symmetrical base channel steels form a cavity structure with an opening at the upper end and are arranged along the direction of the rail, the structure channel steel 2-1 is fixedly connected to a walking ground beam 4 of the gantry crane in a welding mode, the tensile steel plate 2-2 is fixedly connected to the lower side of a free end, and the tensile anchor head 2-3 is fixedly connected to, the tensile anchor head 2-3 can be arranged in a cavity structure of the ground anchor structure 1 with an opening at the upper end after walking along with a crane, the tensile anchor head 2-3 is in an inverted T-shaped structure, two plates are symmetrically welded at the lower end of the tensile steel plate 2-2, and triangular reinforcing plates are arranged at the lower ends of the two plates.

Preferably, a plurality of 7-shaped reinforced steel plates 1-3 are welded on the back of the base channel steel 1-2, and the reinforced steel plates 1-3 are respectively welded and fixed with the base channel steel 1-2 and the base steel plate 1-1.

Preferably, the base steel plate is fixedly connected to the ground through anchor hook head bolts 1-4, and the anchor hook head bolts 1-4 are embedded in the strip-shaped concrete foundation 3 of the travelling rail of the portal crane.

Preferably, the ground anchor structure 1 is arranged at the tail end of a running line of the portal crane and is at a proper position (generally arranged at the front positions of a rear wheel and a portal crane inclined leg) away from a car bumper to a collision surface.

Preferably, a steel plate 2-4 is additionally welded between the structural channel steel 2-1 and the tensile steel plate 2-2.

Preferably, the ground anchor structure 1 and the tensile structure 2 are provided in two pairs, and are respectively positioned on two sides of the running rail 5.

According to the structural characteristics of the overturn-preventing reinforcing device of the portal crane, when the portal crane runs under extreme strong wind conditions, the gantry crane may be braked and slip along the running line direction, and when the gantry crane slips to the end of the running line, a ground beam of the running part of the portal crane collides with a car stopper to generate transient braking. For the whole portal crane, the top surface beam of the portal crane and the inclined leg steel part of the walking part are windward stress surfaces, when the ground beam at the bottom of the portal crane is braked by a vehicle stopper, the upper part of the portal crane still stressed by wind necessarily forms an overturning moment relative to the vehicle stopper. At the moment, the tensile anchor head part of the tensile structure pulling piece of the overturn-preventing reinforcing device extends into the ground anchor structure, once the overturn state occurs, the overturn-preventing reinforcing device inevitably generates a counter moment for resisting the overturn, so that the safety of personnel and equipment is protected.

The above description is only an example of the specific embodiments of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art can easily find out the modifications or alterations within the technical scope of the present disclosure, which should be covered by the protection scope of the present disclosure. For this reason, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a reinforcement means is prevented inclining by portal crane's inclining which characterized in that: the ground anchor structure comprises a ground anchor structure (1) and a tensile structure (2), wherein the ground anchor structure (1) comprises base steel plates (1-1) and base channel steel (1-2), the tensile structure (2) comprises structure channel steel (2-1), tensile steel plates (2-2) and tensile anchor heads (2-3), two base channel steel (1-2) are symmetrically and fixedly connected to the upper end face of each base steel plate (1-1), the two symmetrical base channel steel (1-2) form a cavity structure with an opening at the upper end and are arranged along the direction of a walking rail, the structure channel steel (2-1) is fixedly connected to a walking ground beam (4) of a portal crane, the tensile steel plates (2-2) are fixedly connected to the lower end of each free end, the tensile anchor heads (2-2) are fixedly connected to the tensile anchor heads (2-3) after walking of the portal crane and can be arranged in the cavity of the ground anchor structure (1) with the opening at the upper end Within the structure; a plurality of 7-shaped reinforcing steel plates (1-3) are welded on the back of the base channel steel (1-2), and the reinforcing steel plates (1-3) are respectively welded and fixed with the base channel steel (1-2) and the base steel plate (1-1); the base steel plate is fixedly connected to the strip-shaped concrete foundation (3) of the travelling rail of the portal crane through anchor hook head bolts (1-4), and the anchor hook head bolts (1-4) are embedded in the strip-shaped concrete foundation (3) of the travelling rail of the portal crane; a steel plate (2-4) is additionally welded between the structural channel steel (2-1) and the tensile steel plate (2-2); the ground anchor structure (1) and the tensile structure (2) are arranged in two pairs and are respectively positioned on two sides of the walking rail (5); the ground anchor structure (1) is arranged at the tail end of the running line of the portal crane.