Safe explosion-proof portal crane

Abstract

The utility model discloses a safe explosion-proof portal crane which comprises a crane, an electric hoist is arranged on the crane, a lifting rope is wound on the electric hoist, a connector is arranged at the lower end of the lifting rope, and a plurality of groups of lifting hooks are arranged on the connector. According to the safe explosion-proof portal crane, the servo motor and the crane form a vertical lifting structure through the telescopic arm under the action of the electric push rod, and the bearing plate and the concave fixing frame form a rotating structure through the output shaft under the action of the servo motor, so that the crane is assisted in lifting through the bearing plate under the action of the electric push rod; a protective cover of the device is inserted into a fixing block in a penetrating mode through a clamping block to form a clamping limiting structure with a sliding rail, a suction structure is formed by a dust suction opening and the interior of the sliding rail through an exhaust pipe under the action of an exhaust fan, and therefore the service life of the lifting rope is prolonged. Therefore, daily protection is carried out on the sliding rail through the protective cover, and meanwhile the sliding rail can be cleaned through the dust suction opening in an auxiliary mode.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a safe explosion-proof gantry crane. Background Art

[0002] Gantry crane is a variant of bridge crane, also known as gantry crane or portal crane, which is mainly used for loading and unloading operations in outdoor cargo yards, storage yards and bulk cargoes. It is widely used in port cargo yards, shipyards, power station sites and other occasions due to its high site utilization, wide operating range, wide adaptability and strong versatility. In the process of using the safety door, in order to ensure that lifting and handling operations in flammable, explosive or harmful gas environments will not cause explosions or fires, safety explosion-proof gantry cranes are used to lift and move related materials.

[0003] During the use of the safety explosion-proof gantry crane, the lifting rope and hook assembly drive the related materials to be lifted and lowered, and the crane moves in the lower slideway. However, during the use of the existing safety explosion-proof gantry crane, the rope is subjected to a large tension during the winding process, which can easily damage the rope, and if there are impurities in the slide rail, it is easy to affect the movement of the crane. Therefore, a safety explosion-proof gantry crane is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a safety and explosion-proof gantry crane to solve the problems raised in the above-mentioned background technology that during use, the rope of the existing safety and explosion-proof gantry crane is subjected to a large tension during the winding process, which can easily cause damage to the rope, and the presence of impurities in the slide rail can easily affect the movement of the crane.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe explosion-proof gantry crane, comprising a crane, an electric hoist is provided on the crane, and a lifting rope is wound on the electric hoist, a connecting head is provided at the lower end of the lifting rope, and a plurality of hooks are provided on the connecting head, and electric push rods are respectively embedded in the crane at both ends of the lifting rope, and a telescopic arm is provided on the electric push rod, and a concave fixing frame is provided at the lower end of the telescopic arm, and a servo motor is provided in the concave fixing frame, and an output shaft is provided on the servo motor, and a supporting plate is provided on the outer wall of the output shaft;

[0006] The crane is provided with a roller at the lower end, and the roller is inserted into the slide rail, the slide rail is provided with a protective cover at the top, and the two ends of the protective cover are respectively provided with a clamping block, the slide rail is provided with a fixed block on the outer wall at both ends, and the clamping block is inserted into the fixed block, the protective cover is embedded with a dust suction port on one side, and the dust suction port is provided with an exhaust pipe, and the other end of the exhaust pipe is connected to the exhaust fan;

[0007] The slide rail is provided with a fixed plate at the top, and a scraper is provided at the bottom of the fixed plate. The scraper is an inclined structure, and a brush is provided at the lower end of the scraper. Fixed rods are provided on both sides of the fixed plate at the lower end surface, and balls are embedded in the lower ends of the fixed rods. The slide rail is provided with sliding grooves corresponding to the upper end surface, and the balls are inserted into the sliding grooves. L-shaped fixing rods are provided on both sides of the fixed plate, and spiral limiting rods are provided on the L-shaped fixing rods. The limiting rods are inserted on the protective cover, and pull rods are provided on the limiting rods.

[0008] Preferably, the servo motor forms a vertical lifting structure through a telescopic arm and a crane under the action of the electric push rod, and the supporting plate forms a rotating structure through an output shaft and a concave fixed frame under the action of the servo motor.

[0009] Preferably, the protective cover is inserted into the fixing block through the snap block to form a snap-fit ​​limiting structure with the slide rail, and the dust suction port forms a suction structure through the exhaust pipe and the inside of the slide rail under the action of the exhaust fan.

[0010] Preferably, one end of the limiting rod is provided with a thread on the outer wall, and the pull rod forms a spiral locking structure through the limiting rod and the L-shaped fixing rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the servo motor of the safety explosion-proof gantry crane forms a vertical lifting structure with the crane through the telescopic arm under the action of the electric push rod, and the supporting plate forms a rotating structure with the concave fixed frame through the output shaft under the action of the servo motor, so that the crane is assisted in lifting through the supporting plate under the action of the electric push rod, and then the gravity exerted on the lifting rope is dispersed to increase the service life of the lifting rope, the protective cover of the device is inserted into the fixed block through the snap block to form a snap-in limiting structure with the slide rail, and the dust suction port forms a suction structure with the inside of the slide rail through the exhaust pipe under the action of the exhaust fan, so that the slide rail can be protected daily by the protective cover while the dust suction port can be used to assist in cleaning the slide rail, one end of the limiting rod of the device is provided with a thread on the outer wall, and the pull rod forms a spiral locking structure with the L-shaped fixing rod through the limiting rod, so that the scraper can be ensured to perform cleaning work inside the protective cover through the spirally installed pull rod assembly, and at the same time, the scraper can be used as a cleaning assembly to clean it regularly during the operation of the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a safety explosion-proof gantry crane of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of a safety explosion-proof gantry crane protective cover assembly of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of a scraper assembly of a safety explosion-proof gantry crane of the utility model;

[0015] Figure 4 This is a side structural schematic diagram of a safety explosion-proof gantry crane protective cover assembly of the utility model;

[0016] Figure 5 The utility model is a schematic structural diagram of a support plate assembly of a safety explosion-proof gantry crane.

[0017] In the figure: 1. crane, 2. electric push rod, 3. telescopic arm, 4. servo motor, 5. supporting plate, 6. roller, 7. slide rail, 8. protective cover, 9. locking block, 10. fixing block, 11. dust suction port, 12. exhaust pipe, 13. fixing plate, 14. scraper, 15. L-shaped fixing rod, 16. limit rod, 17. pull rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 The utility model provides a technical solution: a safe explosion-proof gantry crane, including a crane 1, an electric hoist is provided on the crane 1, and a lifting rope is wound on the electric hoist, a connecting head is provided at the lower end of the lifting rope, and a plurality of hooks are provided on the connecting head, and electric push rods 2 are respectively embedded in the two ends of the lifting rope on the crane 1, and a telescopic arm 3 is provided on the electric push rod 2, and a concave fixing frame is provided at the lower end of the telescopic arm 3, and a servo motor 4 is provided in the concave fixing frame, and an output shaft is provided on the servo motor 4, and a supporting plate 5 is provided on the outer wall of the output shaft.

[0020] Furthermore, under the action of the electric push rod 2, the servo motor 4 forms a vertical lifting structure with the crane 1 through the telescopic arm 3, and the support plate 5 forms a rotating structure with the concave fixed frame through the output shaft under the action of the servo motor 4, so that the lifting support plate 5 reduces the tension on the lifting rope during operation, thereby reducing the wear of the lifting rope during operation, and at the same time, the servo motor 4 prevents the support plate 5 from affecting the material lifting process.

[0021] The crane 1 is provided with a roller 6 at the lower end, and the roller 6 is inserted into the slide rail 7. The slide rail 7 is provided with a protective cover 8 on the upper part, and the two ends of the protective cover 8 are respectively provided with a clamping block 9. The slide rail 7 is provided with a fixed block 10 on the outer wall at both ends, and the clamping block 9 is inserted into the fixed block 10. The protective cover 8 is embedded with a dust suction port 11 on one side, and the dust suction port 11 is provided with an exhaust pipe 12, and the other end of the exhaust pipe 12 is connected to the exhaust fan.

[0022] Furthermore, the protective cover 8 is inserted into the fixed block 10 through the locking block 9 to form a locking limit structure with the slide rail 7, so that the slide rail 7 is protected by the protective cover 8 during daily placement, and the dust suction port 11 forms a suction structure with the interior of the slide rail 7 through the exhaust pipe 12 under the action of the exhaust fan, so that the dust suction port 11 can assist in cleaning the slide rail 7.

[0023] The slide rail 7 is provided with a fixed plate 13 at the top, and the fixed plate 13 is provided with a scraper 14 at the bottom. The scraper 14 is an inclined structure, and the scraper 14 is provided with a brush at the lower end. Fixed rods are respectively provided on both sides of the fixed plate 13 at the lower end surface, and the fixed rods are embedded with balls at the lower ends. The slide rail 7 is provided with a corresponding slide groove on the upper end surface, and the balls are inserted into the slide groove. L-shaped fixed rods 15 are respectively provided on both sides of the fixed plate 13, and the L-shaped fixed rods 15 are respectively spirally provided with limit rods 16, the limit rods 16 are inserted on the protective cover 8, and the limit rods 16 are provided with pull rods 17.

[0024] Furthermore, one end of the limiting rod 16 is provided with a thread on the outer wall, and the pull rod 17 forms a spiral locking structure through the limiting rod 16 and the L-shaped fixing rod 15, so that the pull rod 17 can easily drive the scraper 14 to clean the inside of the slide rail 7, while ensuring that the scraper 14 can work alone or be placed in the protective cover 8 to work.

[0025] Working principle: When using a safe explosion-proof gantry crane, first, when the slide rail 7 is placed normally, the protective cover 8 is placed above the slide rail 7, and the protective cover 8 is inserted into the fixing block 10 by the snap-fit ​​block 9 to be snap-fitted and placed, so that the inside of the slide rail 7 can be protected by the protective cover 8. At the same time, the scraper 14 can be placed in the protective cover 8 through the ball bearing. Before the crane 1 works, the pull rod 17 and the L-shaped fixing rod 15 can be spirally locked through the limit rod 16, so that the scraper 14 is driven by the pull rod 17 to clean the slide rail 7 inside the protective cover 8. At the same time, the exhaust fan can be started, and the exhaust fan drives the dust suction port 11 through the exhaust pipe 12 to extract the impurities generated when the slide rail 7 is cleaned, thereby ensuring that the inside of the slide rail 7 is in a clean state; the scraper 14 can be taken out during the use of the slide rail 7, Therefore, the pull rod 17 is directly installed on the L-shaped fixed rod 15 through the limit rod 16, so that the slide rail 7 can be cleaned regularly through a separate scraper 14 assembly, thereby ensuring that the slide rail 7 is continuously in a clean state during the operation of the crane 1; during the process of lifting the material by the crane 1, the material is driven to rise by the lifting rope and the hook. When the material rises to a certain height, the servo motor 4 can be started. The servo motor 4 drives the support plate 5 to rotate through the output shaft, and drives the support plate 5 to rise through the telescopic arm 3 under the action of the electric push rod 2, so that the support plate 5 assists in pushing the bottom of the material, so that the electric push rod 2 can effectively disperse the tension exerted on the lifting rope during operation, thereby increasing the service life of the lifting rope. This is the use process of the safety explosion-proof gantry crane.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety explosion-proof gantry crane, comprising a crane (1), wherein the crane (1) is provided with an electric hoist, and a lifting rope is wound around the electric hoist, and the lifting rope is provided with a connector at the lower end, and the connector is provided with a plurality of hooks, characterized in that: Both ends of the lifting rope are respectively embedded with electric push rods (2) on the crane (1), and the electric push rod (2) is provided with a telescopic arm (3), and the telescopic arm (3) is provided with a concave fixing frame at the lower end, and a servo motor (4) is provided in the concave fixing frame, and the servo motor (4) is provided with an output shaft, and the output shaft is provided with a supporting plate (5) on the outer wall; The crane (1) is provided with a roller (6) at the lower end, and the roller (6) is inserted into the slide rail (7); the slide rail (7) is provided with a protective cover (8) at the top, and the two ends of the protective cover (8) are respectively provided with a snap-fit ​​block (9); the slide rail (7) is provided with a fixed block (10) at the outer wall at both ends, and the snap-fit ​​block (9) is inserted into the fixed block (10); the protective cover (8) is embedded with a dust suction port (11) at one side, and the dust suction port (11) is provided with an exhaust pipe (12), and the other end of the exhaust pipe (12) is connected to an exhaust fan; The slide rail (7) is provided with a fixed plate (13) at the top, and the fixed plate (13) is provided with a scraper (14) at the bottom. The scraper (14) is an inclined structure, and a brush is provided at the lower end of the scraper (14). The fixed plate (13) is provided with fixed rods on both sides of the lower end surface, and the fixed rods are embedded with balls at the lower ends. The slide rail (7) is provided with a corresponding slide groove on the upper end surface, and the balls are inserted into the slide groove. The fixed plate (13) is provided with L-shaped fixed rods (15) on both sides, and the L-shaped fixed rods (15) are respectively spirally provided with limit rods (16). The limit rods (16) are inserted into the protective cover (8), and the limit rods (16) are provided with pull rods (17).

2. A safety explosion-proof gantry crane according to claim 1, characterized in that: The servo motor (4) forms a vertical lifting structure with the crane (1) through the telescopic arm (3) under the action of the electric push rod (2), and the supporting plate (5) forms a rotating structure with the concave fixed frame through the output shaft under the action of the servo motor (4).

3. A safety explosion-proof gantry crane according to claim 1, characterized in that: The protective cover (8) is inserted into the fixing block (10) through the locking block (9) to form a locking limit structure with the slide rail (7), and the dust suction port (11) forms a suction structure through the exhaust pipe (12) and the inside of the slide rail (7) under the action of the exhaust fan.

4. A safety explosion-proof gantry crane according to claim 1, characterized in that: One end of the limiting rod (16) is provided with a thread on the outer wall, and the pull rod (17) forms a spiral locking structure through the limiting rod (16) and the L-shaped fixing rod (15).

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