JPH0316874Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention uses a hanging device mainly made of wire rope during cargo handling work, and adjusts the hanging part of the wire rope according to the size of the various suspended loads. Adjust the length and spacing of
This makes cargo handling work unmanned and also reduces dead space in the workplace as much as possible to improve work efficiency. This invention relates to a lifting device for cargo handling that can be used in combination with automatic cargo handling machines.

[Conventional technology]

Conventionally, special lifting equipment has been used to sling long or heavy objects in cargo handling machinery, but when slinging long or heavy objects on a regular and continuous basis, used wire rope for slinging, hanging beams with hooks, tongs, etc. or,
This type of hanging device has a guide tube installed vertically at the bottom of a pair of vertical trolleys attached to a transverse beam, a wire is passed through the guide tube, and the wire is wound around a winding drum. A seat lifter that tensions the seat is disclosed in Japanese Utility Model Application Publication No. 58-75279.

[Problem that the invention attempts to solve]

However, although this conventional wire rope for slinging has good strength considering its small size, the wire rope itself is flexible and the shape of the load part is not constant, and it constantly sways, making it difficult for drivers to Therefore, there must be a separate sling operator, especially for long items, multiple sling operators are required, and the sling operator's The working path had to be wide, which was not efficient.

In addition, hanging tools such as hanging beams and tongs require large external dimensions to maintain strength, and therefore require a large dead space between the loads, and this can be adjusted by adjusting the sling spacing to match the shape of the loads. If it were to be made into an adjustable type, the overall dimensions would be very large in terms of strength, and the weight would also be heavy, so the lifting capacity of the cargo handling machine would need to be increased, making it difficult to make it into an adjustable type. It was a problem. Also, Utsukai Showa 58-75279
In the sheet lifter described in the publication, the strong tensile force applied to the wire acts on the winding drum device and constantly generates high torque, resulting in a high strength and safety burden on the winding drum device. Furthermore, if the winding drum device malfunctions, the wire will be drawn out, which is dangerous.

Another problem was that if the load was not lifted up, the wire would become loose, which would hinder the slinging operation.

[Means for solving problems]

The present invention was devised to solve such conventional problems, and its purpose is to use a wire rope with a small size but high strength in the sling part of the hanging tool used in sling work. Moreover, the object of the present invention is to provide a cargo handling sling that can make the sling work unmanned by making the shape of the sling part that actually contacts the suspended load constant and making the sling interval adjustable. In this case, a pair of transverse beams are provided on the main frame that is lifted by a cargo handling machine so that the interval can be adjusted freely, and longitudinal trolleys are provided on the transverse beams, and a telescopic guide tube that is biased in the direction of extension is provided vertically on each longitudinal trolley. , and a wire guide is attached to the tip of the guide tube, and a wire rope is passed through the guide tube and stretched between the longitudinal trolleys, and the ends of the wire rope are fixed to each of the longitudinal trolleys. The wire rope between the wire guides is stretched horizontally.

[Effect]

Therefore, in the present invention, a wire rope with high strength is used for the sling part of the hanging device, so the external dimensions can be made small even though the safety factor is large.
Further, the wire rope is inserted into the guide tube, and the guide tube is extended so that the wire rope is pulled horizontally between the wire guides provided at the tip of the guide tube, thereby preventing the wire rope from swinging. , and the wire rope of the loading section can always be held horizontally. Furthermore, since the transverse beam and the longitudinal trolley are movable, the spacing between the wire ropes can be adjusted to various dimensions of the load. Therefore,
With this sling, even if a wire rope is used for the sling part, the sling can be slung by simply operating the cargo handling machine, eliminating the need for a sling operator. Furthermore, since a work passage is no longer necessary, the work site can be used more effectively. Furthermore, since the end of the wire rope is fixed to the longitudinal trolley, the tensile force acting on the wire rope can be supported reliably and safely. Moreover, once the tension is applied, the tension is relaxed and the load does not descend. Furthermore, even when the load is not lifted, the guide tube can be extended to create a tensioned state, and troubles in sling work caused by loose wires can be reliably resolved.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

The cargo handling hoist 1 of this embodiment includes a main frame 2, a front transverse beam 3, a rear transverse beam 4, a longitudinal trolley 5 provided on the front transverse beam 3, and a longitudinal trolley 5 provided on the rear transverse beam 4. The main components are a row trolley 6, a guide tube 7, and a wire rope 8.

The main frame 2 has threaded rods 9 arranged at appropriate intervals on its lower surface in two rows in equilibrium, and is supported longitudinally by bearings 10. This threaded rod 9 is divided into right-handed threads and left-handed threads from the center toward the front and back. Further, a traverse motor 11 provided at the center of two of the main frames simultaneously rotates two rows of sprocket wheels 12 provided at the center of the threaded rod 9 through a chain 13.

Each of the front and rear transverse beams 3 and 4 has a female thread block 14 fixed thereon with a right-hand thread or a left-hand thread at two places on the upper surface of the upper flange, and a right-hand thread or a left-hand thread between this female thread and the threaded rod 9. The transverse beams 3 and 4 are attached at right angles to the threaded rod 9 by screwing them together while aligning them. And the transverse beams 3 and 4 before and after this
A longitudinal threaded rod 15 is supported by a bearing 16 along the flange surface on the lower surface of the lower flange. This vertical threaded rod 15 is threaded from the center to the left and right into a right-handed thread and a left-handed thread, and the vertical motors 1 are installed on the front and rear transverse beams 3 and 4, respectively.
7 rotates a sprocket wheel 18 provided at the center of the longitudinal threaded rod 15 by a chain 19.

Further, the longitudinal trolleys 5, 5', 6, 6' are fixed to the lower flanges of the transverse beams 3, 4 by longitudinal wheels 20, and have female thread blocks 21 provided with right-hand or left-hand threads for longitudinal use. It is threadedly engaged with the threaded rod 15.

The upper part of the guide cylinder 7 is fixed to the lower part of the vertical trolleys 5 and 6, and the guide inner cylinder 22 is fitted inside,
Moreover, the guide inner cylinder 22 is vertically slid by a cylinder 23 provided in the guide cylinder through a slit 24 formed in the guide cylinder. A wire guide 25 and a pad plate 2 are attached to the tip of the guide inner cylinder 22.
6 facing inward.

A wire rope 8 is passed through the guide tube 7 and passed between the left and right vertical trolleys 5 and 5' and 6 and 6', and the wire guides 25 and 2
The configuration is such that it is held at 5. The wire rope 8 between the wire guides 25 and 25 is connected to the loading portion 27.
shall be.

Note that 28 is a circular load receiving member firmly attached to the main frame 2 with a bracket 29, and a sliding bearing 30 provided on the upper flange of the longitudinal trolley is slidably inserted into this load receiving member 28. ing.
Therefore, the load received at the loading portion 27 is transmitted from the wheels 20 of the longitudinal trolley to the transverse beam through the wire rope 8, and from the transverse beam, from this load receiving member 28 to the main frame 1. Since the guide inner cylinder 22 is always urged in the direction of extension by the cylinder 23, the wire rope 8 of the loading portion held by the wire guides 25, 25 is always stretched horizontally and does not slacken. To sling a load using this crane hoist, first drive the traverse motor 11 to rotate the threaded rod 9. The threaded rod 9 is divided into right-hand threads and left-hand threads in the front and back, so each Since the female threads screwed together approach or move away from the center at equal intervals, the positions of the transverse beams 3 and 4 are adjusted so that the interval is appropriately longer than the length of the suspended load. Next, in the same manner, the vertical motor 17 is driven to adjust the vertical trolley position so that the vertical trolleys 5 and 5' or 6 and 6' are appropriately wider than the hanging load width. Then, the hoisting machine of the cargo handling machine is operated to lower the main frame 2, and is stopped when the wire rope 8 of the load hanging part 27 comes below the lower surface of the suspended load. In this state, the traverse motor 11 is driven again to insert the wire rope 8 under the suspended load, and the main frame 2
When the load is hoisted up, the hanging part comes into contact with the lower surface of the suspended load, so the longitudinal motor 17 is driven again, the pad 26 comes into contact with the side surface of the suspended load, and the main frame is hoisted up, thereby hoisting the suspended load.

In this way, the cargo handling hoist 1 uses the wire rope 8 for slinging, but there is no slack in the wire rope 8 of the load hanging part 27, and the distance between the wire ropes 8 can be adjusted according to the size of the load. Can be adjusted. Therefore, there is no need for a sling operator, and the sling work can be carried out continuously. Further, since the wire rope has a small size, it can be assembled in a small overall shape while maintaining a sufficient safety factor.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration of the present invention is not limited to these embodiments, and the present invention may be modified without departing from the gist of the invention. Included in technical scope.

For example, as shown in FIG. 5, if the pad plate 26 is extended upward and a stop plate 32 is slidably provided on the guide tube 7, the pad plate 26
may be brought into contact with the side surface of the upper hanging load to prevent the load from collapsing.

Further, although the wire rope 8 of the load hanging portion 27 is tensioned by biasing the guide inner cylinder 22 in the extension direction with the cylinder 23, the present invention is not limited to this. The inner guide cylinder 22 may be biased in the direction of extension by using the inner guide cylinder 22.

Further, although the transverse and vertical threaded rods are both rotated to make the movement, the movement is not limited to this, and the movement may be made by using a combination of a rack and a pinion.

[Effect of idea]

As described above, the present invention uses a wire rope for slinging a cargo handling machine and forms the sling part into a certain shape, so slinging work can be done without the need for a sling operator. Since the position is moved, it can be handled even if the shape of the suspended load is various. Furthermore, since the overall shape can be assembled into a small size, the dead space in the workplace can also be reduced. Furthermore, since the end of the wire rope is fixed to the longitudinal trolley, the tensile force acting on the wire rope can be supported reliably and safely. Moreover, once the tension is applied, the tension is relaxed and the load does not descend. Furthermore, even when the load is not lifted, the guide tube can be extended to create a tensioned state, and troubles in sling work caused by loose wires can be reliably resolved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a cargo handling hanger according to an embodiment of the present invention, Fig. 2 is a partially cutaway front view of the same, Fig. 3 is a partially cutaway side view of the same, and Fig. 4 is an enlarged cross-sectional view of the cargo handling part. , FIG. 5 is a sectional view of a main part of another embodiment. 1: Lifting equipment for cargo handling, 2: Main frame, 3: Front side transverse beam (traverse beam), 4: Rear side transverse beam (traverse beam), 5, 6: Vertical trolley, 7: Guide tube, 8: Wire rope, 22: Guide inner tube (guide tube), 25: Wire guide.

Claims (1)

[Scope of utility model registration request] A pair of transverse beams are provided on the main frame to be lifted by a cargo handling machine so that the interval can be adjusted freely, longitudinal trolleys are provided on the transverse beams, and a telescopic guide tube is vertically provided on each longitudinal trolley to bias it in the direction of extension. A wire guide is attached to the tip of the guide tube, and the guide tube is inserted and a wire rope is stretched between the longitudinal trolleys, and the ends of the wire rope are fixed to each of the longitudinal trolleys, and the guide tube is connected to the guide tube. A lifting device for cargo handling, characterized in that the wire rope is stretched horizontally between wire guides.