Single-beam hoisting equipment

Abstract

The utility model relates to single-beam hoisting equipment, which belongs to the technical field of single-beam cranes and comprises two supports, a top beam is arranged between the two supports, a movable seat is slidably connected to the outer side of the top beam, a motor push rod is arranged on the lower surface of the movable seat, and a connecting frame is arranged on the outer side of an output shaft of the motor push rod. A stabilizing mechanism is arranged on the outer side of the connecting frame, and a fixing mechanism is arranged on the inner side of the connecting frame. According to the single-beam hoisting equipment, by starting an air cylinder, the supporting columns on the left side and the right side move relatively, the supporting columns on the left side and the right side penetrate through hanging openings in the top ends of cargoes, the cargoes can be hung, and meanwhile in order to improve the cargo transportation stability, output shafts at the two ends of a double-shaft motor are started, so that supporting plates on the left side and the right side turn over towards the bottoms of the cargoes; and the supporting plates on the left side and the right side are used for bearing the bottoms of the goods, the goods transportation stability can be improved, and the beneficial effects that heavy goods are supported in an auxiliary mode are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of single-girder cranes, and specifically relates to a single-girder lifting device. Background Art

[0002] Single-girder lifting devices are common industrial lifting devices, which are widely used in places such as warehouses, workshops, and docks for material handling and hoisting operations. Such devices are favored for their simple structure, convenient operation, and easy maintenance.

[0003] For example, a single-girder lifting device disclosed in Chinese Patent CN213326415U includes a main girder and legs. The height of the legs is adjustable. The top of the legs is hinged to the main girder. Sliding grooves are provided on the front and rear side walls of the main girder. A sliding frame is slidably arranged in the sliding grooves. The sliding frame includes a lifting plate arranged below the main girder, lifting rods arranged on the front and rear sides of the top of the lifting plate, and a sliding plate connected to the top of the lifting rods and slidably arranged in the sliding grooves. Slide rails are provided along the length direction of the sliding grooves at the top and bottom of the sliding grooves. An elastic sliding mechanism is provided on the sliding plate. The elastic sliding mechanism includes a spring connected to the sliding plate and a pulley connected to the other end of the spring and cooperating with the slide rail. An electric hoist is provided at the bottom of the lifting plate. A driving mechanism is provided at the bottom of the main girder for driving the lifting plate to move along the length direction of the main girder.

[0004] The above single-girder lifting device still has certain deficiencies. When driving the electric hoist to move horizontally along the main girder by setting a sliding frame and an elastic sliding mechanism, the friction is reduced to cause less wear to the main girder and the electric hoist, the service life is extended, and the guiding property is good when the electric hoist moves along the main girder. However, when lifting and transporting goods by a hook, when the goods are transported in the air, they may shake, making the goods transportation unstable and reducing the practicability of the single-girder lifting device. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a single-girder lifting device, which has the advantages of auxiliary support for heavier goods, etc., and solves the problem that when the goods are transported in the air, they may shake, making the goods transportation unstable.

[0006] To achieve the above object, the utility model provides the following technical solution: A single-girder lifting device includes two brackets, a top beam is arranged between the two brackets, a movable seat is slidably connected to the outside of the top beam, a motor push rod is arranged on the lower surface of the movable seat, a connecting frame is arranged on the outside of the output shaft of the motor push rod, a stabilizing mechanism is arranged on the outside of the connecting frame, and a fixing mechanism is arranged on the inside of the connecting frame.

[0007] Further, the stabilizing mechanism includes a box body arranged on the inner top wall of the connecting frame. A double-shaft motor is arranged on the inner top wall of the box body. Connecting rods are arranged on the outer sides of the output shafts at both ends of the double-shaft motor. One end of each of the two connecting rods facing away from each other penetrates through the opposite side walls of the inner cavity of the connecting frame and extends to the left and right sides of the connecting frame and are respectively fixed with two worm gears. U-shaped frames are fixed on the left and right sides of the connecting frame. A movable column is rotatably connected between the front and rear side walls of the inner cavities of the two U-shaped frames through bearings. A worm wheel meshing with the worm gears on the left and right sides is fixed on the outer side of each of the two movable columns. A support plate is fixed on the outer side of each of the two movable columns.

[0008] Further, an installation groove for placing the box body is formed in the inner top wall of the connecting frame. The connection parts of the two connecting rods and the connecting frame are rotatably connected through bearings.

[0009] Further, each of the two support plates is composed of a vertical plate, an inclined plate and a support plate. The two vertical plates are respectively fixed on the outer sides of the two movable columns. The two inclined plates are respectively fixed on the sides of the two vertical plates away from the two movable columns. The two support plates are horizontally and oppositely arranged at the bottom ends of the two inclined plates.

[0010] Further, two extension plates are horizontally fixed at the left and right ends of the connecting frame and near the top end thereof. A vertical plate rotatably connected to the two worm gears through bearings extends vertically downward on the opposite sides of the two extension plates.

[0011] Further, the fixing mechanism includes a cylinder arranged on the lower surface of the box body and at its center. An installation plate is arranged on the outer side of the output shaft of the cylinder. Hinge rods are hinged on the left and right sides of the installation plate through hinge shafts. Two sliding rods are arranged between the opposite side walls of the inner cavity of the connecting frame. Two sliders are slidably connected to the outer sides of the two sliding rods. Two fixing plates are fixed on the upper surfaces of the front and rear sliders and the two fixing plates are respectively hinged to the two hinge rods. Support columns are fixed on the lower surfaces of the left and right sliders.

[0012] Further, each of the two support columns is composed of a fixed block, a stabilizing frame and an insertion block. The stabilizing frame is obliquely fixed on the outer sides of the two insertion blocks. The left and right fixed blocks are respectively vertically arranged on the lower surfaces of the left and right sliders.

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0014] This single-girder lifting equipment can suspend the goods by starting the cylinder to make the left and right support columns move relative to each other, and passing the left and right support columns through the suspension openings at the top of the goods. At the same time, to improve the stability of goods transportation, the output shafts at both ends of the double-shaft motor are started to make the left and right pallets turn over towards the bottom of the goods, and the left and right pallets are used to support the bottom of the goods, which can improve the stability of goods transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic diagram of the stability mechanism of the present utility model;

[0017] Figure 3 is a schematic diagram after the pallet structure of the present utility model is turned over;

[0018] Figure 4 is a schematic diagram of the fixing mechanism of the present utility model.

[0019] In the figure: 1 support, 2 stability mechanism, 201 box body, 202 double-shaft motor, 203 connecting rod, 204 worm, 205 U-shaped frame, 206 movable column, 207 worm gear, 208 pallet, 3 top beam, 4 fixing mechanism, 401 cylinder, 402 mounting plate, 403 hinged rod, 404 slide bar, 405 slider, 406 support column, 5 movable seat, 6 motor push rod, 7 connecting frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1, a single-girder lifting device in this embodiment includes two brackets 1. A top beam 3 is arranged between the two brackets 1. The top beam 3 is fixed between the two brackets 1 by a plurality of bolts. A movable seat 5 is slidably connected to the outside of the top beam 3. The movable seat 5 is horizontally slidably arranged. A motor push rod 6 is arranged on the lower surface of the movable seat 5. The motor push rod 6 is fixed to the lower surface of the movable seat 5 by bolts. The motor push rod 6 is a conventional mechanical device in the prior art that converts the rotational motion of a motor into a linear motion. This application will not elaborate too much on it. A connecting frame 7 is arranged on the outside of the output shaft of the motor push rod 6. The upper surface of the connecting frame 7 and at its center is fixed to the output shaft of the motor push rod 6 through a coupling or bolts. A stabilizing mechanism 2 is arranged on the outside of the connecting frame 7, and a fixing mechanism 4 is arranged on the inside of the connecting frame 7.

[0022] Please refer to Figures 2 to 3 , in this embodiment, the stabilizing mechanism 2 includes a box body 201 arranged on the inner top wall of the connecting frame 7. A double-shaft motor 202 is arranged on the inner top wall of the box body 201. Connecting rods 203 are arranged on the outside of the output shafts at both ends of the double-shaft motor 202. The opposite ends of the two connecting rods 203 both penetrate through the opposite side walls of the inner cavity of the connecting frame 7 and extend to the left and right sides of the connecting frame 7 and are respectively fixed with two worm gears 204. The opposite ends of the two connecting rods 203 respectively penetrate through the left and right side walls of the inner cavity of the box body 201 and are rotatably connected to the left and right side walls thereof through bearings. U-shaped frames 205 are fixed to the left and right sides of the connecting frame 7. Movable columns 206 are rotatably connected between the front and rear side walls of the inner cavities of the two U-shaped frames 205. Worm wheels 207 meshingly connected to the left and right worm gears 204 are fixed to the outside of the two movable columns 206. Support plates 208 are fixed to the outside of the two movable columns 206.

[0023] An installation groove for placing the box body 201 is opened on the inner top wall of the connecting frame 7. The box body 201 is fixed to the top of the installation groove opened on the inner top wall of the connecting frame 7 by bolts. The connection parts of the two connecting rods 203 and the connecting frame 7 are rotatably connected through bearings. The two support plates 208 are both composed of vertical plates, inclined plates and support plates. The two vertical plates are respectively fixed to the outside of the two movable columns 206. The two inclined plates are respectively fixed to the sides of the two vertical plates away from the two movable columns 206. By starting the output shafts at both ends of the double-shaft motor 202, the left and right worm gears 204 drive the left and right worm wheels 207 to rotate respectively, so that the left and right movable columns 206 start to rotate, and drive the left and right support plates 208 to turn over towards the bottom of the goods. The bottom of the goods is supported by the left and right support plates 208, which can improve the stability of goods transportation. The two support plates are both horizontally and oppositely arranged at the bottom ends of the two inclined plates. Two extension plates are horizontally fixed to the left and right ends of the connecting frame 7 and near the top thereof. Vertical plates rotatably connected to the two worm gears 204 through bearings are vertically and downwardly extended and fixed to the opposite sides of the two extension plates.

[0024] Please refer toFigure 4 , in this embodiment, the fixing mechanism 4 includes a cylinder 401 disposed on the lower surface of the box body 201 and at its center. An installation plate 402 is provided on the outer side of the output shaft of the cylinder 401. Hinge rods 403 are hinged on both the left and right sides of the installation plate 402 through hinge shafts. Two slide rods 404 are provided between the opposite side walls of the inner cavity of the connecting frame 7. Two sliders 405 are slidably connected to the outer sides of the two slide rods 404. The two sliders 405 are slidably connected to the outer sides of the two slide rods 404, which can make the sliding of the two sliders 405 more stable. Fixing plates are fixed on the upper surfaces of the front and rear sliders 405, and the two fixing plates are respectively hinged to the two hinge rods 403. Support columns 406 are fixed on the lower surfaces of the left and right sliders 405.

[0025] Both of the two support columns 406 are composed of a fixed block, a stabilizing frame and an insertion block, and the stabilizing frame is obliquely fixed on the outer sides of the two insertion blocks. The oblique setting of the stabilizing frame can improve the support strength of the insertion block. Start the motor push rod 6 to make the connecting frame 7 move vertically downward. At this time, start the cylinder 401 to drive the two hinge rods 403 to pull the left and right sliders 405 respectively, so that the left and right support columns 406 move relatively. By using the left and right support columns 406 to pass through the suspension openings at the top of the goods, the motor push rod 6 can be started to make the connecting frame 7 move upward to drive the goods to be transported upward. The left and right fixed blocks are respectively vertically arranged on the lower surfaces of the left and right sliders 405.

[0026] It can be understood that by starting the cylinder 401, the left and right support columns 406 move relatively. By using the left and right support columns 406 to pass through the suspension openings at the top of the goods, the goods can be suspended. At the same time, in order to improve the stability of the goods transportation, start the output shafts at both ends of the double-shaft motor 202 to make the left and right support plates 208 turn over and move towards the bottom of the goods. By using the left and right support plates 208 to support the bottom of the goods, the stability of the goods transportation can be improved.

[0027] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply, and the electrical components mentioned in the text are all conventional known devices. This application will not elaborate too much. The main controller can be a conventional known device such as a computer for control. The control circuit of the main controller can be realized by simple programming by those skilled in the art. The provision of the power supply also belongs to the common knowledge in the art. And this utility model is mainly used to protect mechanical devices, so this utility model will not explain the control method and circuit connection in detail. At the same time, for the parts not described in detail in this utility model, they are all well-known technologies to those skilled in the art.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0029] The working principle of the above embodiment is as follows:

[0030] When using this single-girder lifting device, the movable seat 5 can automatically slide horizontally outside the top beam 3 through a switch control, which is a conventional technique in the prior art, and the application will not elaborate on its principle too much. After the movable seat 5 moves above the goods to be lifted, the motor push rod 6 is started to make the connecting frame 7 move vertically downward. At this time, the air cylinder 401 is started to drive the two articulated rods 403 to respectively pull the left and right sliders 405, so that the left and right support columns 406 move relatively. The left and right support columns 406 are used to pass through the suspension openings at the top of the goods. Subsequently, the motor push rod 6 is started to make the connecting frame 7 move upward. At this time, in order to improve the stability of the goods transportation, the output shafts at both ends of the double-shaft motor 202 can be started to make the left and right worms 204 drive the left and right worm wheels 207 to rotate respectively, so that the left and right movable columns 206 start to rotate and drive the left and right support plates 208 to turn and move towards the bottom of the goods, and the bottom of the goods is supported by the left and right support plates 208, which can improve the stability of the goods transportation.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A single-beam lifting device, comprising two brackets (1), characterized in that: A top beam (3) is arranged between the two brackets (1); a movable seat (5) is slidably connected to the outer side of the top beam (3); a motor push rod (6) is arranged on the lower surface of the movable seat (5); a connecting frame (7) is arranged on the outer side of the output shaft of the motor push rod (6); a stabilizing mechanism (2) is arranged on the outer side of the connecting frame (7); and a fixing mechanism (4) is arranged on the inner side of the connecting frame (7).

2. A single beam lifting equipment according to claim 1, characterized in that: The stabilizing mechanism (2) comprises a box body (201) arranged on the inner top wall of the connecting frame (7); a dual-axis motor (202) is arranged on the inner top wall of the box body (201); connecting rods (203) are arranged on the outer sides of the output shafts at both ends of the dual-axis motor (202); the ends of the two connecting rods (203) that are opposite to each other penetrate the opposite side wall of the inner cavity of the connecting frame (7) and extend to the left and right sides of the connecting frame (7) and are respectively fixed with two worms (204); U-shaped frames (205) are fixed on the left and right sides of the connecting frame (7); movable columns (206) are rotatably connected between the front and rear side walls of the inner cavities of the two U-shaped frames (205) via bearings; worm wheels (207) meshingly connected with the worms (204) on the left and right sides are fixed on the outer sides of the two movable columns (206); and support plates (208) are fixed on the outer sides of the two movable columns (206).

3. A single beam lifting equipment according to claim 2, characterized in that: The inner top wall of the connecting frame (7) is provided with a mounting groove for placing the box body (201), and the connection points of the two connecting rods (203) and the connecting frame (7) are rotatably connected via bearings.

4. A single beam lifting equipment according to claim 2, characterized in that: The two support plates (208) are composed of a vertical plate, an inclined plate and a support plate. The two vertical plates are respectively fixed on the outside of the two movable columns (206), the two inclined plates are respectively fixed on the side of the two vertical plates away from the two movable columns (206), and the two support plates are both arranged horizontally opposite to each other at the bottom ends of the two inclined plates.

5. A single beam lifting equipment according to claim 2, characterized in that: Two extension plates are horizontally fixed at the left and right ends of the connecting frame (7) and near the top thereof, and vertical plates are vertically extended downward and fixed on opposite sides of the two extension plates and are rotatably connected to the two worms (204) via bearings.

6. A single beam lifting equipment according to claim 1, characterized in that: The fixing mechanism (4) comprises a cylinder (401) arranged on the lower surface of the box body (201) and located at the center thereof, a mounting plate (402) is arranged on the outer side of the output shaft of the cylinder (401), and the left and right sides of the mounting plate (402) are both hingedly connected with hinge rods (403) through hinge shafts, two sliding rods (404) are arranged between the side walls opposite to each other in the inner cavity of the connecting frame (7), and the outer sides of the two sliding rods (404) are both slidably connected with two sliders (405), two fixing plates are fixed on the upper surfaces of the sliders (405) on the front and rear sides, and the two fixing plates are respectively hingedly connected with the two hinge rods (403), and support columns (406) are fixed on the lower surfaces of the sliders (405) on the left and right sides.

7. A single beam lifting equipment according to claim 6, characterized in that: The two support columns (406) are composed of a fixed block, a stabilizing frame and an inserting block, and the stabilizing frame is tilted and fixed on the outside of the two inserting blocks. The fixed blocks on the left and right sides are respectively vertically arranged on the lower surfaces of the left and right sliding blocks (405).

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