Windproof device for portal crane

Abstract

The utility model relates to the technical field of portal cranes, and particularly discloses a windproof device for a portal crane, which comprises fixed tables, screw rods are movably connected to the interiors of the opposite sides of the two fixed tables on the same left side and the same right side through bearings, and the outer walls of the two screw rods are in threaded connection with sliding frames. The upper end faces of the two sliding frames are fixedly connected with fixing plates, the opposite sides of the two fixing plates are fixedly connected with a first limiting plate and a second limiting plate which are connected to the outer walls of the supporting legs in an inserted mode correspondingly, the first limiting plate and the second limiting plate are connected to the outer walls of the supporting legs in an inserted mode, and meanwhile the positioning plates are connected into the positioning grooves in an inserted mode. The supporting legs can be wrapped and fixed through the first limiting plate and the second limiting plate, the connecting rod between the front supporting leg and the rear supporting leg can be pressed and fixed through the pressing frame, fixing of the supporting legs can be further improved, the portal crane is stably placed, and therefore the windproof effect on the portal crane is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to a windproof device for gantry cranes. Background Art

[0002] A gantry crane (also known as a gantry crane) is a bridge crane with a bridge supported on the ground track by two legs on both sides. Its metal structure is like a door-shaped frame, with two legs installed under the main beam, so it can walk directly on the ground track.

[0003] Gantry cranes are large in size and weight and are widely used in construction sites, ports and other places. Gantry cranes are top-heavy and have a large windward area. When operating outdoors in coastal areas, high typhoon protection measures are required.

[0004] At present, gantry cranes are easily affected by bad weather during operation, which causes the gantry cranes to be top-heavy, unstable in placement, and cause damage. Therefore, it is necessary to propose a windproof device for gantry cranes to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a windproof device for a gantry crane, which has the characteristics of firmly fixing the supporting legs so that the gantry crane can be stably placed, thereby achieving the windproof effect on the gantry crane.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a windproof device for a gantry crane, comprising a support foot, two fixed platforms are arranged on the left and right sides of the support foot, the interiors of the opposite sides of the two fixed platforms located on the same side of the left and right sides are both movably connected with screws through bearings, the interiors of the two fixed platforms are both installed with motors whose output ends are fixedly connected with the screws, the outer walls of the two screws are both threadedly connected with slides slidably connected with the bottom ends of the inner sides of the fixed platforms, the upper end surfaces of the two slides are both fixedly connected with fixed plates, the opposite sides of the two fixed plates are respectively fixedly connected with a first limiting plate and a second limiting plate inserted in the outer wall of the support foot, the front and rear sides of the first limiting plate are both provided with positioning grooves, and the front and rear sides of the inner wall of the second limiting plate are both fixedly connected with positioning plates matching the positioning grooves;

[0007] A connecting plate is fixedly connected between the front and rear fixing platforms, and a pressing frame is fixedly connected to one side of the connecting plate close to the supporting foot.

[0008] In order to place the supporting legs stably, as a preferred wind protection device for a gantry crane of the utility model, the upper end surface of the fixed platform is fixedly connected with a fixed block, and the side of the fixed block close to the supporting legs is fixedly connected with a fixed frame abutting the supporting legs.

[0009] In order to fix the fixing platform on the ground, as a preferred wind protection device for a gantry crane of the utility model, a porous plate is fixedly connected to the lower end surface of the fixing platform, and the porous plate is anchored to the ground.

[0010] In order to place the gantry crane stably, as a preferred wind protection device for the gantry crane of the utility model, the first limiting plate and the second limiting plate are both in a U-shaped structure, and the fixing frame is in an X-shaped structure.

[0011] In order to allow the fixing plate to move left and right, as a preferred windproof device for a gantry crane of the utility model, a through groove is provided through the upper end surface of the fixing platform.

[0012] In order to limit and fix the first limit plate and the second limit plate, as a preferred wind protection device for a gantry crane of the utility model, the front and rear sides of the outer walls of the first limit plate and the second limit plate are connected by fixing bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model firstly enables the first limiting plate and the second limiting plate to be inserted into the outer wall of the supporting leg, and at the same time the positioning plate is inserted into the positioning groove, and then the supporting leg can be wrapped and fixed by the first limiting plate and the second limiting plate, so that the supporting leg can be stably placed, and secondly the connecting rod between the front and rear supporting legs can be pressed and fixed by the pressing frame, and then the fixation of the supporting leg can be further improved, so that the gantry crane can be stably placed, thereby achieving the windproof effect on the gantry crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the fixed platform and the press frame of the utility model;

[0017] Figure 3 This is a side structural diagram of the fixing frame of the utility model;

[0018] Figure 4 This is a top view of the first limiting plate and the second limiting plate of the utility model.

[0019] In the figure: 1. Support foot; 2. Fixed platform; 201. Screw; 202. Motor; 203. Slide; 204. Fixed plate; 205. First limit plate; 206. Positioning groove; 207. Second limit plate; 208. Positioning plate; 209. Perforated plate; 3. Fixed block; 301. Fixed frame; 4. Connecting plate; 401. Press frame. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 A windproof device for a gantry crane comprises a support leg 1, two fixed platforms 2 are arranged on the left and right sides of the support leg 1, the interiors of the two fixed platforms 2 on the same side of the left and right sides are both connected with screw rods 201 movably through bearings, the interiors of the two fixed platforms 2 are both installed with motors 202 whose output ends are fixedly connected with the screw rods 201, the outer walls of the two screw rods 201 are both threadedly connected with slides 203 which are slidably connected with the bottom ends of the inner sides of the fixed platforms 2, the upper end surfaces of the two slides 203 are both fixedly connected with fixed plates 204, the opposite sides of the two fixed plates 204 are respectively fixedly connected with a first limiting plate 205 and a second limiting plate 207 which are plugged into the outer wall of the support leg 1, the front and rear sides of the first limiting plate 205 are both provided with positioning grooves 206, and the front and rear sides of the inner wall of the second limiting plate 207 are both fixedly connected with positioning plates 208 which match the positioning grooves 206;

[0021] A connecting plate 4 is fixedly connected between the front and rear fixing platforms 2 , and a pressing frame 401 is fixedly connected to one side of the connecting plate 4 close to the supporting leg 1 .

[0022] In this embodiment: the entire windproof device is placed on the left and right sides of the gantry crane support leg 1 respectively, and then the motor 202 is started, so that the motor 202 drives the screw 201 to rotate, prompting the fixed plates 204 on the left and right sides to move relative to each other, prompting the first limiting plate 205 and the second limiting plate 207 to be inserted into the outer wall of the support leg 1, and at the same time the positioning plate 208 is inserted into the positioning groove 206, and then the support leg 1 can be wrapped and fixed by the first limiting plate 205 and the second limiting plate 207, so that the support leg 1 is stably placed, and then the connecting rod between the front and rear support legs 1 can be pressed and fixed by the pressing frame 401, and then the fixation of the support leg 1 can be further improved, so that the gantry crane can be stably placed, thereby achieving the windproof effect on the gantry crane.

[0023] As a technical optimization solution of the utility model, the upper end surface of the fixing platform 2 is fixedly connected with a fixing block 3 , and the side of the fixing block 3 close to the supporting leg 1 is fixedly connected with a fixing frame 301 abutting against the supporting leg 1 .

[0024] In this embodiment: the support leg 1 can be abutted by the fixing frame 301, so that the support leg 1 can be stably placed to achieve a windproof effect.

[0025] As a technical optimization solution of the utility model, the lower end surface of the fixed platform 2 is fixedly connected with a porous plate 209, and the porous plate 209 is anchored to the ground.

[0026] In this embodiment: the porous plate 209 is used to fix the fixed platform 2 on the ground, so as to achieve fixed wind protection for the gantry crane.

[0027] As a technical optimization solution of the present utility model, the first limiting plate 205 and the second limiting plate 207 are both in a U-shaped structure, and the fixing frame 301 is in an X-shaped structure.

[0028] In this embodiment: the first limiting plate 205 and the second limiting plate 207 are both U-shaped structures to facilitate more stable fixation of the support leg 1, and the fixing frame 301 is X-shaped structure to facilitate more stable fixation of the support leg 1, so that the gantry crane can be stably placed to achieve a windproof effect.

[0029] As a technical optimization solution of the present utility model, a through groove is formed through the upper end surface of the fixing platform 2 .

[0030] In this embodiment, the through slot allows the fixing plate 204 to move left and right.

[0031] As a technical optimization solution of the present invention, the front and rear sides of the outer walls of the first limiting plate 205 and the second limiting plate 207 are connected by fixing bolts.

[0032] In this embodiment, the first limiting plate 205 and the second limiting plate 207 can be limited and fixed by fixing bolts, so that the supporting leg 1 can be fixed by the first limiting plate 205 and the second limiting plate 207 .

[0033] Working principle: First, place the entire windproof device on the left and right sides of the gantry crane support leg 1 respectively, then start the motor 202, so that the motor 202 drives the screw 201 to rotate, prompting the fixed plates 204 on the left and right sides to move relative to each other, prompting the first limiting plate 205 and the second limiting plate 207 to be inserted into the outer wall of the support leg 1, and at the same time, the positioning plate 208 is inserted into the positioning groove 206, and then the support leg 1 can be wrapped and fixed by the first limiting plate 205 and the second limiting plate 207, so that the support leg 1 can be stably placed, and secondly, the connecting rod between the front and rear support legs 1 can be pressed and fixed by the pressing frame 401, and then the fixation of the support leg 1 can be further improved, so that the gantry crane can be stably placed, thereby achieving the windproof effect on the gantry crane.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind protection device for a gantry crane, comprising a support leg (1), characterized in that: Two fixed platforms (2) are arranged on the left and right sides of the support foot (1); the interiors of the two fixed platforms (2) on the same left and right sides opposite to each other are movably connected with screw rods (201) through bearings; the interiors of the two fixed platforms (2) are installed with motors (202) whose output ends are fixedly connected to the screw rods (201); the outer walls of the two screw rods (201) are threadedly connected with slides (203) slidably connected with the bottom ends of the interiors of the fixed platforms (2); the upper end surfaces of the two slides (203) are fixedly connected with fixed plates (204); the opposite sides of the two fixed plates (204) are respectively fixedly connected with a first limiting plate (205) and a second limiting plate (207) plugged into the outer wall of the support foot (1); the front and rear sides of the first limiting plate (205) are provided with positioning grooves (206); the front and rear sides of the inner wall of the second limiting plate (207) are fixedly connected with positioning plates (208) matching the positioning grooves (206); A connecting plate (4) is fixedly connected between the front and rear fixed platforms (2), and a pressing frame (401) is fixedly connected to one side of the connecting plate (4) close to the supporting foot (1).

2. A windproof device for a gantry crane according to claim 1, characterized in that: The upper end surface of the fixed platform (2) is fixedly connected to a fixed block (3), and the side of the fixed block (3) close to the support leg (1) is fixedly connected to a fixed frame (301) abutting against the support leg (1).

3. A windproof device for a gantry crane according to claim 1, characterized in that: A porous plate (209) is fixedly connected to the lower end surface of the fixed platform (2), and the porous plate (209) is anchored to the ground.

4. A windproof device for a gantry crane according to claim 2, characterized in that: The first limiting plate (205) and the second limiting plate (207) are both U-shaped structures, and the fixing frame (301) is X-shaped structure.

5. A windproof device for a gantry crane according to claim 1, characterized in that: A through groove is formed through the upper end surface of the fixing platform (2).

6. A windproof device for a gantry crane according to claim 1, characterized in that: The front and rear sides of the outer walls of the first limiting plate (205) and the second limiting plate (207) are connected by fixing bolts.

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