JPS62157187A - Hanger device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hanging device, and in particular, to a lifting device that handles long objects such as wood and steel, and containers, the invention aims to improve the turning performance of the hanging device. This invention relates to a hanging device.

[Prior art] Being able to freely change the direction of the hanging device for hanging cargo allows for good handling of the cargo during cargo handling work, and also makes it possible to adjust the direction of the cargo to suit the loading and unloading area. It has many advantages, such as being able to change the orientation of the vehicle appropriately, thereby reducing the space required for loading and unloading.

Jib cranes, double-link retractable cranes, and the like, which have been traditionally used as load-throwing machines, are convenient for handling as they can direct loads slung with ropes in various directions. By the way, when these cranes are applied to container cargo handling in recent years, it is necessary to adjust the spreader rice 1 to ``one hole fitting!'' J ff i
7F is appropriate because high ff positioning ability is required, and even if it is adopted, it is thought that the work efficiency will decrease slightly.

In a crane having a traveling trolley, a turntable is installed on the traveling trolley, and a hoisting tool, a hoisting drive device, a pulley for the hoisting tool, etc. are installed on the turntable: 21 (i)
A device in which the hanger is rotated by a turntable is known. However, in such a device, the traveling trolley that supports the crane pull is quite heavy when the hoisting drive device and other multi-layered objects are moved. It was decided that JH would increase costs, etc.

Therefore, as shown in Figs. 13 to 16, the traveling trolley is equipped with only a turning mechanism for turning the tools.
Various types of traveling trolleys have been devised to reduce the weight of the traveling trolley as much as possible.

The one shown in Fig. 13 or 14 is equipped with a second-base hoisting winch a on the front side, the rear side, or either side of the traveling trolley (not shown) in the traveling direction. Two hoisting ropes C are stretched in both directions between the jia and the lifting device via the running trolley side crushing width C and the Kuhn table measuring sliding weight d to form a hoisting rock structure. The cargo g can be lifted up and down freely using the U!! structure.The swinging action of the hanging device is carried out by a turntable (not shown) provided on the traveling 1-roller. (not shown).

On the other hand, as shown in FIGS. 15 and 16, 1! :) is mainly supported by the traveling trolley 1) and suspended by the traveling trolley h. ! 1, a pair of hoisting ropes 1 stretched on both sides in the width direction of the running trolley h (and a hoisting rope k provided on the running trolley h and whose position is regulated by a guide plate β). It consists of a pulley m that guides the trolley toward the turntable side in the width direction center, and a sabot 1-ar80 that is stretched between this pulley m and the turntable j, and a rotating gourd structure p moves the turntable j. When the hoisting rope is turned, the sabot 1-arm n is used to prevent the hoisting rope from becoming loose.

[Problems to be Solved by the Invention] In the former case, the hoisting rope e that is passed between the running trolley side temperature i1c that is not moved and the run table side temperature width d that is rotated is When turning, there is a risk that the rope may be twisted or returned, and the hoisting rope may be
f7)2? There is a problem that life is adversely affected, and the rope e becomes inclined between the pulley C and the pulley C due to the turning movement of the pulley d, and the rope easily comes off from the groove of the pulley. In addition, in order to alleviate this problem, it was necessary to increase the length of the hoisting rope between pulleys c and d, which was disadvantageous in terms of securing the lifting height.

On the other hand, in the latter case, since the ropes 1 are stretched on both sides of the trolley h at a considerable distance from the center of rotation q of the hanging device i, the resistance due to the rope tension during turning is large. , Therefore, it was necessary to install a swing lj! groove p with a large driving force, which was a waste of time.Also, the way the winding opening to the winding opening 1 (II) was asymmetrical, and the support arm 0
Due to the HQ U, the turntable j and the swiveling enclosure r of the hanging tool 1 are limited to one direction υ1, either around the clock or counterclockwise. could not be changed freely. Furthermore, the pulley m
It is necessary to allow movement of the parts, which complicates the structure and is also unfavorable in terms of maintenance and inspection.

[Object of the Invention] The present invention was devised in view of the problems mentioned above, and the purpose is to provide a hanging device that can improve the turning performance of the hanging device. i! It's in full swing.

[Summary of the Invention] The present invention provides a lifting device in which a pair of hoisting ropes, which are provided under a traveling row and are folded back and stretched in both directions between a hoisting winch and an equalizer, are passed across the hoisting rope. In a hanging device for a rotating frame that is supported at four points on both ends so as to be freely raised and lowered, the frame is driven to rotate. A pair of hoisting ropes, a pair of horizontal pulleys fixedly installed near the center of rotation of the traveling trolley for introducing and leading out the pair of hoisting ropes, and A pair of guide pulleys are fixedly installed at the side slides 11 and 18 to respectively guide the hoisting ropes of the hanging tools, and a group of guide pulleys are installed in the vicinity of the center of rotation of the traveling trolley. and a rope interference avoidance means for avoiding interference between the pair of hoisting ropes 10rL, install only the swing 1 support structure on the traveling 1-loly, and 11) extend the hoisting rope near the center of swing; Traveling on horizontal pulley group and guide pulley group respectively 1
Helioly, fixedly installed on the revolving frame to eliminate their movement, and the hoisting rope is a horizontal pulley! ! The configuration is such that the hoisting ropes are introduced and led out to the running 1-roller by Y, and the hoisting ropes that are passed from the running 111-roller to the revolving frame are hung symmetrically, and the interference between the hoisting ropes is prevented by rope interference when passing the hoisting ropes. This is something that can be prevented using workarounds.

[Example] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 2 to 4, a pair of running rails 2 are laid on both sides of the running girder 1, and a running trolley is supported by running wheels 3 and guide wheels 4. 5 is movably digitized by 82.

This running trolley 5 is connected to a running wire 6 which is stretched along the longitudinal direction of the rail and is wound and let out by a running winch (not shown), so that the running trolley 5 runs on the rail 2 soil. .

In addition, the traveling trolley 5 mainly consists of a cross-shaped frame structure in which timbers 5a are interlocked, and directly below the traveling trolleys 1 to 1 5, there is a boat arm 7 superimposed from the +111 part of the beam 5a. A turntable 8 on the ring ↑ is provided by being suspended and supported by the ring. As shown in FIGS. 1 to 3, this turntable 8 has a rotating frame 11 supported by rotating rollers 10 on a circular rotating track 9 laid on its upper surface.
is rotatably provided. And this rotating frame 11
As shown in FIGS. 1 and 5, the output peak 13 of the swing drive upper 12 provided on the swing frame 11 is engaged with the annular rack 14 formed on the inner periphery of the turntable 8, and the turntable is rotated. It is designed to be driven to rotate on the table 8.

As shown in FIGS. 1 to 4 and 6, the traveling trolley 5 and the rotating frame 11 configured as described above have a pair of windings that support the hanging tool 15 at four points at both ends so that it can be raised and lowered. Ten upper ropes 16 are passed over (one of the pair of hoisting ropes 16 is shown in FIG. 6). Hereinafter, one hoisting rope 1G will be explained. The other hoisting rope 16 has a similar configuration and is symmetrical with respect to the traveling direction of the traveling trolley. The hoisting rope 16 is guided by a pulley 17 at one end of the traveling girder 1 from an upper winch 18 installed above one end of the girder 1, and is connected to an equalizer installed at the other end of the girder 1. The hanging tool 151 is hung from the inside of the traveling trolley 5 and then folded back and stretched in both directions. In particular, the hoisting rope 16 is passed over the traveling 1-roller 5 in a circular motion (hanging along the j direction and toward the vicinity of the pivot center C of the pivoting frame 11 that is driven to pivot). In the travel 1 to trolley 5, a hoisting rope 16 is introduced into the trolley 5 from the upside winch 18 and an equalizer in the vicinity of the turning center C, and a horizontal rope is introduced from the trolley 5 to lead out from the trolley 5. A group of pulleys 20 is fixedly installed. In this example, it is a horizontal pulley! ! ¥20 is 4 horizontal pulleys 20a, 20
b, 20c, and 2Qd are vertically stacked, mounted on the same support shaft 30, and supported under the trolley 5 by a support bracket 22. Further, the horizontal pulley group 20 includes a pulley 20a
, 20c introduces and guides the hoisting rope 16 from the hoisting winch 18 toward one equalizer, and pulleys 20b, 2
0d are respectively folded back by the equalizer 1 to introduce and lead out the hoisting rope 16 toward the hoisting winch 18. On the other hand, the rotation frame 11 has its rotation center C.
A guide pulley group 21 for guiding the hoisting rope 16 from the horizontal pulley group 20 to the hanging tool 15 is fixedly disposed radially outward from the guide pulley group 21 along the turning direction. In this embodiment, the guide pulley group 21 is disposed on each sheave bracket 22 provided at the corner of the rotating frame 11 so as to face each other,
In order to introduce and lead out the hoisting rope 1G from the horizontal pulley group 20 to the revolving frame side and guide it to the hanging device 15, two pulleys (lea, 2) are assembled, upper and lower, and are slightly inclined from the horizontal.
1b and horizontally arranged pulleys 210° and 21d, and the rotating frame 11! Each pulley 21a is placed in the frontage 23
, 21t), 21c, 21d l=are arranged in correspondence, respectively, and these 41 and 8 [T21a.

Rolling loaf 1 that is barreled from 21b, 21c, 21d
vertical) r wheels 21c, 21r for guiding the 6 from the frontage part 23 to the pulley 24 for the hanging tool under the frame 11;

21! :+, 21h. Then, the horizontal pulley 116 that is handed over from the hoisting winch 18 travels; - The trolley 5 runs toward the vicinity of the turning center C from the rolling direction, and the horizontal pulley 20 of the horizontal pulley group 20
from a to the pulley 21a of the guide pulley group 21 and introduced into the turning frame 1111, guided by the guide pulley 1!21a and suspended via the vertical slide 421e to the lifting pulley 24.
l) l) The hoisting rope 16 is further attached to the hoisting pulley 2.
4 and is led out from the trolley 5 via the vertical pulley 219 and pulley 21c and the horizontal pulley 20c of the crushing wheel 11Y20. The derived rolling loaf 16 is the equalizer 1
It turns around at 9 and reintroduces it to trolley 5. The introduced hoisting rope 16 is passed symmetrically around the above-mentioned rope 11) and then led out from the trolley 5 and wound around the hoisting winch 18. (Such a rope) f) Injuries to the other hoisting rope 1G It's designed to look like this.

By the way, in the case of the above-mentioned rope hook, as shown in FIG. m between ¥21 and
The hoisting rope portions 16a and 16b that are +-+ interfere with the hoisting rope portions 16c and 16d that are passed between the f1 vehicle details 20 and the hoisting winch 18 or equalizer 19 when the rotating frame 11 turns. I will do it. Therefore, in the present invention, as shown in FIG. 2, FIG. 4, FIG. 6, or FIG. 8, these rope portions 16i'l, 16b
, 16c, 16d 17) In order to avoid interference, the hoisting low 116 is rough exhibited from the horizontal sliding φ20b, 20d. 1li) 25 are provided. In this embodiment, the rope interference avoidance means 25
As, horizontal pulley 2. Guide the 59 protruding height position of the hoisting rope portion 16C916d from Ob, 20d) n small group 2
higher than the height position of the hoisting rope portions 16a, 16b to 1 (guide bypass sliding widths 25a, 25t) are adopted,
It is installed at an angle in the center of the traveling trolley 5.

A hanging tool (not shown) is attached to the equalizer 19, and the sheave block 19a is moved (in the X direction in the figure).
If so, the hanging tool 15 moves in the X direction, and the sheave block 19
11 of a! By moving the portion 19b (in the Y direction in the figure), the hanger 15 can be tilted in the Y direction. Furthermore, 2
6 is a driver's cab, and 27 is a spreader.

Next, the operation of this embodiment will be described.

When hoisting cargo such as a container by lowering the hoisting tool 15 W, if there is no need to turn the hoisting tool 15 in the state shown in FIG.
If the lifting device 15 is let out and reeled in, the hanging device 15 descends in the same direction, and the load can be lifted up.

On the other hand, when adjusting the hanging device 15 to match the direction of the cargo while avoiding rotation,
Or, when changing the direction of the cargo depending on the loading/unloading location, for example, turn the hanging tool 15 counterclockwise (not indicated by an arrow in the figure).
When you need to turn, turn drive! 'lJ E
- Turntable 8 as shown in Figure 10 by evening 12
If the rotating frame 11 is rotated by a desired angle above,
As shown in FIG. 11, the hanging tool 15 can be adjusted to the direction of the cargo by moving away from the state shown in FIG. 9 through a turning range of approximately 90 degrees. On the other hand, when it is necessary to rotate the hanging tool 15 clockwise (1 degree indicated by arrow R in the figure), the rotation drive L-91
If 2 is reversed, it will move approximately 9 to the right as shown in Figure 12.
It can be turned within a turning range of 0 degrees.

By the way, in the present invention, the arrangement of the pulleys of the hoisting loaf 16 is symmetrical, and the pulleys themselves are all fixed, so it is difficult to move the pulleys, etc. For that purpose, you can easily switch between right and left turns with one touch while the load is being hung, without requiring any complicated operations.・You can freely turn the hoist 15 within a wide range of 13,180 degrees. V can be done.

In addition, since pulleys and the like are fixedly installed and do not move, maintenance and inspection are easy.

In addition, the traveling trolley 5 is equipped with only the equipment necessary for turning the rotating handle 15, and the apricot rope 16 is mounted on the traveling trolley 5.
Since the pulley that guides the trolley 5 is also a fixed pulley, the trolley 5 can be made smaller and lighter. Therefore, the weight of the crane itself is reduced.
), he also tried to get down by 1!7.

In addition, in the present invention, the introduction of the hoisting rope 16 to the rows 1 to 5 of the windings 1, 9i, and 5 is performed from 1 force near the turning center C, so that when the 61st The resistance caused by rope tension can be reduced, and the turning frame can be made with a small amount of driving force. 1. , 11. The hanging tool 15 can be rotated. In addition, since the hoisting loaf 16 is derived from the 1 force near the turning center C, λ is derived from the 1 force near the center of rotation, so it is 1 while horizontally sliding! The length of the hoisting rope 16 between the T 20 and the guide pulley group 21 has little difference with respect to the ever-changing turning angle, so the hanging tool 15 can be turned 25 in a nearly horizontal state. and work safety is high.

Further, when turning, the provision of the rope interference avoidance means 25 prevents the ropes 16 from interfering with each other and allows the ropes 16 to be turned appropriately.

Furthermore, since the hoisting rope 16 is provided with two on the left and right, the hoisting tool 15 can be tilted diagonally and horizontally at will during normal work, and the conventional one-way rope performance is sufficiently improved. Demonstrated in 1! obtain. Furthermore, the lifting device according to the present invention can be appropriately adopted for existing cranes, and can be used as a substitute for the conventional lifting device if necessary.

[Effects of the Invention] To summarize, according to the present invention, the following effects are achieved.

(1) It is possible to efficiently switch between turning to the right and turning to the left with a single motion while the load is being hung, and the hanging device can be freely turned over a wide range of approximately 180 degrees.

(2) Maintenance and inspection are easy.

(3) The traveling trolley can be made smaller and lighter.

(4) Reduces resistance due to rope tension when turning,
Rotate the hanging tool with a small driving force! 19.

! 5) The change in the length of the hoisting rope between the groove pulley group and the guide pulley group is small with respect to the turning angle, making it possible to safely turn the hoist in a substantially horizontal state.1! ? Ru.

[F]) The rope interference avoidance means prevents the hoisting ropes from interfering with each other and turns them appropriately. The integrity of the hoisting rope can be maintained bm.

(7) Make full use of your normal trolley abilities.

Mark f: Appropriately applicable to existing cranes.

[Brief explanation of drawings]

Fig. 1 is a plan view of a revolving frame showing a preferred embodiment of the present invention, Fig. 2 is a front view of the revolving frame including a running trolley, and Fig.
The figure is a side view, and Figure 4 is Figure 3.
a-1va line and HIVb-IVb P2 arrow view, Fig. 5 is an enlarged side sectional view of the main part showing the turning yM structure, Fig. 6 is a perspective view showing the hoisting rope in the first handover state, Fig. 7 Volume-F
11) A side view showing an unfavorable example of passing the rope; FIG. 8 is a side view showing the 11) passing state of the hoisting rope in the present invention; FIGS. 9 to 12 are for detailed explanation of the present invention. 13 to 16 are perspective views, side views, and plan views showing conventional examples. In the figure, 5 is a traveling trolley, 11 is a revolving frame, 15 is a hanging device, 16 is a hoisting rope, 18 is a hoisting winch, 19 is an equalizer, 20 is a side sliding weight, 21 is a guide pulley group, and 25 is a rope interference The avoidance means, C, is the turning center. Special; T Applicant: Ishikawajima-Harima Heavy Industries Co., Ltd. Representative Patent Attorney Nobuo Tani Figure 1 old, odd r-tee〉ya C;
Figure 2 Figure 8 Figure 9

Claims (1)

[Claims] A pair of hoisting ropes are provided under the traveling trolley and are folded back and stretched in both directions between the hoisting winch and the equalizer, and the hoisting device is driven to rotate while supporting both ends so that it can be raised and lowered. In the hanging device having a revolving frame, the pair of hoisting ropes are passed around the traveling trolley along the traveling direction of the traveling trolley and toward the vicinity of the turning center of the revolving frame, and the hoisting ropes are wrapped around the traveling trolley in the direction of rotation of the traveling trolley. A pair of horizontal pulley groups for introducing and leading out the pair of hoisting ropes are provided in the vicinity of the center, and each of the pair of horizontal pulley groups is connected to the hanging tool along the turning locus of the rotating frame. A pair of guide pulley groups are provided for respectively guiding the pair of hoisting ropes, and a rope interference avoidance means is provided in the vicinity of the turning center of the traveling trolley to avoid mutual interference between the pair of hoisting ropes. A hanging device characterized by being provided with.