Adjustable electric single-beam crane

Abstract

The utility model discloses an adjustable electric single-beam crane. The adjustable electric single-beam crane comprises a cross beam, a telescopic beam is slidably connected to the right end in the cross beam, end beams are arranged at the left end of the cross beam and the right end of the telescopic beam, a long hole is formed in the right side of the upper surface of the cross beam, a stud is arranged on the left side of the upper surface of the telescopic beam, the upper end of the stud penetrates through the long hole, and a nut is in threaded connection to the end of the stud; a winch is arranged on the lower surface of the moving trolley; the adjustable electric single-beam crane further comprises a PLC, the PLC is arranged on the front side face of the moving trolley, the input end of the winch is electrically connected with the output end of the PLC, and the input end of the PLC is electrically connected with an external power source. The adjustment is convenient, the installation convenience is good, and meanwhile, the safety of the electric single-beam crane during operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to an adjustable electric single-beam crane. Background Art

[0002] With the development of science and technology and the progress of society, there are more and more types of cranes, including gantry cranes, port cranes, ship cranes, bridge cranes, etc. Different cranes are selected in different occasions. Electric single-beam cranes are often installed inside factory buildings. Electric single-beam cranes are a kind of light and small lifting equipment. They run on I-beam tracks and heavy objects are hung on them. They are easy to use. During the construction process, the I-beam tracks need to be installed on the frame of the factory building. The end beams at both ends of the electric single-beam crane need to correspond to the I-beam tracks one by one. The end beam spacing at both ends of the existing electric single-beam cranes generally cannot be adjusted. When there is an error in the installation spacing of the two I-beam tracks, the end beams and the I-beam tracks will be misaligned, affecting the safety of operation, or the I-beam tracks need to be adjusted. The I-beam tracks are long and inconvenient to adjust, which affects the convenience of installing the electric single-beam crane. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an adjustable electric single-beam crane. During the installation process, the spacing between the end beams at both ends of the electric single-beam crane can be adjusted. The adjustment is convenient and the installation is convenient. At the same time, the safety of the electric single-beam crane during operation is improved, and the problems in the background technology can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable electric single-beam crane, comprising a crossbeam;

[0005] Crossbeam: The right end inside it is slidably connected with a telescopic beam, the left end of the crossbeam and the right end of the telescopic beam are both provided with end beams, a long hole is opened on the right side of the upper surface of the crossbeam, a stud is provided on the left side of the upper surface of the telescopic beam, the upper end of the stud passes through the long hole and is threadedly connected with a nut at the end, the lower end of the crossbeam is slidably connected with a moving trolley, and a winch is provided on the lower surface of the moving trolley;

[0006] Among them: it also includes a PLC controller, the PLC controller is arranged on the front side of the mobile trolley, the input end of the winch is electrically connected to the output end of the PLC controller, and the input end of the PLC controller is electrically connected to an external power supply. During the installation process, the spacing between the end beams at both ends of the electric single-beam crane can be adjusted to ensure that the end beams correspond to the tracks one by one, the adjustment is convenient, and the installation is convenient, while improving the safety of the electric single-beam crane during operation.

[0007] Furthermore, the right end inside the telescopic beam is rotatably connected to a screw rod on the upper side of the beam through a bearing, which facilitates the control of the movement of the telescopic beam.

[0008] Furthermore, a hexagonal hole is provided at the right end of the screw rod to facilitate the control of the rotation of the screw rod.

[0009] Furthermore, a scale is provided inside the groove on the upper surface of the telescopic beam to facilitate the control of the extension distance.

[0010] Furthermore, a pressure plate is movably sleeved in the middle of the outer arc surface of the stud, and the pressure plate is located between the crossbeam and the nut to disperse the pressure of the nut.

[0011] Furthermore, symmetrically distributed racks are provided on the lower surface of the crossbeam, and the right end of the mobile trolley is rotatably connected to a transmission shaft through a bearing. Symmetrically distributed gears are provided in the middle of the outer arc surface of the transmission shaft, and the gears are respectively meshed and connected with the vertically corresponding racks to facilitate the control of the movement of the mobile trolley.

[0012] Furthermore, a worm wheel is provided at the front end of the transmission shaft, and a worm is rotatably connected to the front end of the mobile trolley through a bearing. The worm is meshingly connected to the worm wheel, and a motor is provided at the upper left end of the front side of the mobile trolley. The output shaft of the motor is fixedly connected to the upper end of the worm, and the input end of the motor is electrically connected to the output end of the PLC controller to facilitate the control of the rotation of the transmission shaft.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the adjustable electric single-beam crane has the following advantages:

[0014] During installation, loosen the nut so that the nut no longer locks the crossbeam through the pressure plate. Then use the hexagonal wrench to insert it into the internal rotating screw of the hexagonal hole. The screw drives the telescopic beam to extend to the right under the action of the screw nut. The telescopic beam drives the end beam on the right to move. At the same time, the distance of movement can be determined according to the scale. When the end beam spacing is consistent with the actual spacing of the double tracks, tighten the nut. The nut presses the crossbeam through the pressure plate to lock the crossbeam and the telescopic beam. During the installation process, the end beam spacing at both ends of the electric single-beam crane can be adjusted to ensure that the end beam corresponds to the track one by one. The adjustment is convenient and the installation is good. At the same time, the safety of the electric single-beam crane during operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model crossbeam;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0018] In the figure: 1 crossbeam, 2 telescopic beam, 3 end beam, 4 stud, 5 nut, 6 pressure plate, 7 long hole, 8 moving trolley, 9 winch, 10 PLC controller, 11 rack, 12 transmission shaft, 13 gear, 14 worm, 15 worm wheel, 16 motor, 17 lead screw, 18 lead screw nut, 19 hexagonal hole, 20 scale. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 ,This embodiment provides a technical solution: an adjustable electric single-beam crane, comprising a beam 1;

[0021] Crossbeam 1: The right end inside it is slidably connected with a telescopic beam 2. The left end of the crossbeam 1 and the right end of the telescopic beam 2 are both provided with an end beam 3. The end beam 3 moves on the track. A long hole 7 is opened on the right side of the upper surface of the crossbeam 1. A stud 4 is provided on the left side of the upper surface of the telescopic beam 2. The upper end of the stud 4 passes through the long hole 7 and is threadedly connected with a nut 5 at the end. The long hole 7 provides a moving space for the stud 4. The lower end of the crossbeam 1 is slidably connected with a moving trolley 8. The lower surface of the moving trolley 8 is provided with a winch 9. The winch 9 works to lift the material. The moving trolley 8 drives the winch 9 to move along the crossbeam 1. The material is lifted by moving. The right end of the telescopic beam 2 is connected to a screw rod 17 through a bearing. A screw nut 18 is provided on the right side of the upper side wall of the cross beam 1. The left end of the screw rod 17 is threadedly connected to the screw nut 18. The screw rod 17 drives the telescopic beam 2 to extend to the right under the action of the screw nut 18. A hexagonal hole 19 is provided at the right end of the screw rod 17. The hexagonal wrench is inserted into the hexagonal hole 19 to rotate the screw rod 17. A scale 20 is provided inside the groove on the upper surface of the telescopic beam 2. The distance of the movement can be determined according to the scale 20. A pressure plate is movably sleeved in the middle of the outer arc surface of the stud 4. 6, the pressing plate 6 is located between the crossbeam 1 and the nut 5, the locking nut 5, the nut 5 presses the crossbeam 1 through the pressing plate 6, realizes the locking of the crossbeam 1 and the telescopic beam 2, can ensure that the end beam 3 corresponds to the track one by one, and ensures the safety of the crane operation. The lower surface of the crossbeam 1 is provided with symmetrically distributed racks 11, the right end of the mobile trolley 8 is rotatably connected with the transmission shaft 12 through the bearing, the middle part of the outer arc surface of the transmission shaft 12 is provided with symmetrically distributed gears 13, the gears 13 are respectively meshed with the vertically corresponding racks 11, the front end of the transmission shaft 12 is provided with a worm gear 15, the mobile trolley 8 The front end is rotatably connected with a worm 14 through a bearing, and the worm 14 is meshed with a worm wheel 15. A motor 16 is provided at the upper left end of the front side of the mobile trolley 8. The output shaft of the motor 16 is fixedly connected to the upper end of the worm 14. The input end of the motor 16 is electrically connected to the output end of the PLC controller 10. The operation of the motor 16 drives the worm 14 to rotate, and the worm 14 drives the transmission shaft 12 to rotate through the worm wheel 15. The transmission shaft 12 drives the gear 13 to rotate, and the gear 13 is meshed with a stationary rack 11, and then the gear 13 drives the mobile trolley 8 to slide along the beam 1 through the transmission shaft 12;

[0022] Among them: it also includes a PLC controller 10, which is arranged on the front side of the mobile car 8, the input end of the winch 9 is electrically connected to the output end of the PLC controller 10, and the input end of the PLC controller 10 is electrically connected to an external power supply, and the PLC controller 10 facilitates the control of electrical appliances.

[0023] The working principle of an adjustable electric single-beam crane provided by the utility model is as follows: during installation, the nut 5 is loosened, the nut 5 no longer locks the crossbeam 1 through the pressure plate 6, and then the hexagonal wrench is inserted into the internal rotation screw 17 of the hexagonal hole 19. The screw 17 drives the telescopic beam 2 to extend to the right under the action of the screw nut 18, and the telescopic beam 2 drives the end beam 3 on the right to move. At the same time, the moving distance can be determined according to the scale 20. When the spacing between the end beams 3 is consistent with the actual spacing between the double rails, the nut 5 is locked, and the nut 5 presses the crossbeam 1 through the pressure plate 6 to achieve The locking of the crossbeam 1 and the telescopic beam 2 can ensure that the end beam 3 corresponds to the track one by one, thereby ensuring the safety of the crane operation. When in use, the PLC controller 10 is adjusted, the winch 9 works to lift the material, the motor 16 drives the worm 14 to rotate, the worm 14 drives the transmission shaft 12 to rotate through the worm gear 15, the transmission shaft 12 drives the gear 13 to rotate, the gear 13 is meshed and connected with the stationary rack 11, and then the gear 13 drives the moving trolley 8 to slide along the crossbeam 1 through the transmission shaft 12, and the moving trolley 8 drives the winch 9 to move, thereby realizing the lifting of the material.

[0024] It is worth noting that the winch 9, PLC controller 10 and motor 16 disclosed in the above embodiments can be freely configured according to the actual application scenario. The winch 9 can choose a winch of model JK-3T, the PLC controller 10 can choose a PLC controller of model S7-200, and the motor 16 can choose a motor of model ZDY21-4. The PLC controller 10 controls the operation of the winch 9 and the motor 16 using methods commonly used in the prior art.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable electric single-beam crane, characterized in that: comprising a crossbeam (1); The crossbeam (1) is slidably connected to the telescopic beam (2) at its right end, and the left end of the crossbeam (1) and the right end of the telescopic beam (2) are both provided with end beams (3). A long hole (7) is provided on the right side of the upper surface of the crossbeam (1), and a stud (4) is provided on the left side of the upper surface of the telescopic beam (2). The upper end of the stud (4) passes through the long hole (7) and is threadedly connected to a nut (5) at the end. The lower end of the crossbeam (1) is slidably connected to a moving trolley (8), and a winch (9) is provided on the lower surface of the moving trolley (8); Wherein: it also includes a PLC controller (10), the PLC controller (10) is arranged on the front side of the moving vehicle (8), the input end of the hoist (9) is electrically connected to the output end of the PLC controller (10), and the input end of the PLC controller (10) is electrically connected to an external power supply.

2. The adjustable electric single-beam crane according to claim 1, characterized in that: The right end inside the telescopic beam (2) is rotatably connected to a screw rod (17) via a bearing, a screw rod nut (18) is provided on the right side of the upper side wall of the cross beam (1), and the left end of the screw rod (17) is threadedly connected to the screw rod nut (18).

3. The adjustable electric single-beam crane according to claim 2, characterized in that: A hexagonal hole (19) is formed at the right end of the screw rod (17).

4. The adjustable electric single-beam crane according to claim 1, characterized in that: A scale (20) is provided inside the groove on the upper surface of the telescopic beam (2).

5. The adjustable electric single-beam crane according to claim 1, characterized in that: A pressure plate (6) is movably sleeved in the middle of the outer arc surface of the stud (4), and the pressure plate (6) is located between the crossbeam (1) and the nut (5).

6. The adjustable electric single-beam crane according to claim 1, characterized in that: The lower surface of the crossbeam (1) is provided with symmetrically distributed racks (11); the right end of the movable trolley (8) is rotatably connected to a transmission shaft (12) via a bearing; the middle of the outer arc surface of the transmission shaft (12) is provided with symmetrically distributed gears (13); the gears (13) are respectively meshed and connected with the vertically corresponding racks (11).

7. The adjustable electric single-beam crane according to claim 6, characterized in that: A worm gear (15) is provided at the front end of the transmission shaft (12); a worm (14) is rotatably connected to the front end of the moving trolley (8) via a bearing; the worm (14) is meshingly connected to the worm gear (15); a motor (16) is provided at the upper left end of the front side of the moving trolley (8); an output shaft of the motor (16) is fixedly connected to the upper end of the worm (14); and an input end of the motor (16) is electrically connected to an output end of a PLC controller (10).

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