JPH0610274U - Multi-stage telescopic guide for carrier device suspension steady - Google Patents

Abstract

(57) [Summary] [Purpose] The load on the hoisting machine does not change while hoisting the hoisting equipment from the lower limit to the upper limit, and the guides at each stage operate smoothly without causing vibration or noise during expansion and contraction. To do. [Structure] Every other side surface 1a of the lowermost guide 1, the other side surface 2b of the second step guide 2, and the first and second equalizer sheaves 5 and 10 on the upper outer side, the other side surface of the second step guide, and three steps The first and second sheaves 7 and 12 are provided inside the lower portion of the side surface 3a of every other eye guide 3, and the first and second wire ropes 6 and 11 are erected on the equalizer sheave, and both ends are provided with the first and second sheaves. Other side surface 3 of the third stage guide 3 and the uppermost stage guide 4 via
b, the first and second wire rope adjusting fittings 8 and 13 are attached to the inside of the upper portion of every other side surface 4a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a guide device that is installed between a trolley equipped with a hoist (hoist, etc.) and a hoist that is suspended by a wire rope that is hoisted on the hoist, and that prevents the hoist from swinging. In particular, the present invention relates to a multi-stage telescopic guide for a carrier device swaying steady rest, which is provided with a simultaneous telescopic mechanism in which the guides from the lowermost stage to the lowermost stage of the uppermost stage simultaneously extend and contract.

[0002]

[Prior art]

 In the conventional expansion / contraction guides for anti-sway of the lifting device of the transportation device, each step guide is provided with a hitting metal fitting, and the hitting metal fitting of the next step is hit by the guide of the previous step, and this operation is repeated in sequence so that the next step expands and contracts. Is expanding and contracting.

[0003]

[Problems to be solved by the device]

 In a conventional telescopic mast that expands and contracts one step at a time, when expanding and contracting, the lowermost guide first contracts, and when it contracts to the mechanical limit, the guide hits the second step guide hitting metal and the second step The contraction of the guide begins.

[0006] Then, this operation is sequentially repeated down to the uppermost stage, and the contraction of the plurality of stages of expansion and contraction guides is completed.

At this time, the load applied to the hoisting machine is the lifting load and the lowermost guide's own weight at the lower limit (contraction of the lowermost guide), but when the second guide is contracted, the second guide's own weight is decreased. Is also added.

When the upper limit (contraction of the guide below the uppermost guide) is wound up, the own weight up to the guide below the uppermost guide is added.

Therefore, the load applied to the hoisting machine is gradually changed while the hoisting device is hoisted from the lower limit to the upper limit, and the larger the number of steps of the guide, the larger the load fluctuation.

Further, when the mast of each stage hits the metal fitting due to its mechanical limit, vibration and noise are generated, and particularly the vibration is a great obstacle to those used for applications such as a conveyor.

According to the present invention, the load applied to the hoisting machine is stable from the lower limit to the upper limit, and there is no collision between the guides and the contact metal fittings during expansion and contraction, and smoother operation is possible. It is intended to provide a telescopic guide.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, for example, in a four-stage hexagonal tubular expansion and contraction guide, two first equalizer sheaves are provided outside every other side surface of the uppermost guide of the lowermost stage.

Then, two first sheaves are provided on the inner side of the other side of the lowermost guide, which is attached to another side of the lowermost guide other than every other side (hereinafter referred to as other side). Set up.

Further, a first wire rope adjusting fitting is provided on the upper side of the third-stage guide on the inner side of the other side face of the second-stage guide.

A first wire in which two ends of each of the first wire ropes, which are laid on each of the two first equalizer sheaves, are fixed to the inside of the other side surface of the upper portion of the third stage guide via the lower first sheaves, respectively. Attach to the rope adjustment bracket.

Further, two second equalizer sheaves are provided on the upper part of the second-stage guide and on the outer side of the other side face that is in contact with the other side face of the lowermost stage guide.

Then, two second sheaves are provided on the inner side of every other side of the second stage guide, which is abutted on every other side of the second stage guide.

Further, a second wire rope adjusting metal fitting is provided on the upper side of the uppermost guide and on the inner side of every other side of the third stage guide, which contacts the side of every other side.

A second wire rope, which is erected on each of the two second equalizer sheaves, is fixed to the inner side of every other side of the uppermost guide through the lower second sheaves. Attach to the wire rope adjustment fitting.

[0018]

[Action]

 The uppermost guide 4 of the crane suspension anti-sway telescopic guide of the present proposal is fixed to the upper trolley equipped with the hoist, and the lowermost guide 1 is fixed to the hoist hung by the wire rope of the hoist. To do.

Then, when the hoisting machine is hoisted, the guides 1 at the lowermost stage through the hoisting device are arranged on the side surfaces 1a, 1a, 1a at every other upper portion, and each two first equalizer sheaves 5, 5 are installed. Rises with.

When the two first equalizer sheaves 5, 5 are raised, the central portions of the first wire ropes 6 laid on the sheaves 5, 5 are raised.

Both ends of each of the first wire ropes 6 are two first sheaves provided inside the other side surface 2b below the second step guide 2 and in contact with the other side surface 1b of the lowermost guide 1. It is fixed to the first wire rope adjusting fittings 8 and 8 fixed to the inside of the other side surface 3b of the guide 2 which is abutted on the side surface 2b of the guide 2 via the seventh and seventh guides 7, 7. Therefore, the rise of the central portion of the first wire rope 6 raises the guide 2 of the second stage by 1/2 with respect to the guide 1 of the lowermost stage.

When the guide 2 in the second stage further rises, two second equalizer sheaves 10, 10 provided on the upper side of the guide 2 outside the other side surfaces 2b, 2b, 2b rise.

When the two second equalizer sheaves 10, 10 are raised, the central portions of the second wire ropes 11 installed on the sheaves 10, 10 are raised.

Both ends of each of the second wire ropes 11 are two second sheaves provided inside the side surface 3a, which is below the third step guide 3 and abuts on every other side surface 2a of the second step guide 2. It is fixed to the second wire rope adjusting fittings 13 and 13 fixed to the upper side of the uppermost guide 4 via the side 12 and 12 inside the side surface 4a abutting against the side surface 3a. Therefore, the rise of the central portion of the second wire rope 11 raises the third-stage guide 3 by half the rise of the second guide 2.

Therefore, when the lowermost guide 1 is contracted, the second guide 2 and the third guide 3 can be contracted at the same time, and in the case of expansion, conversely it is expanded.

[0026]

【Example】

 A detailed explanation will be given of the attached drawing surface showing an example of the expansion / contraction guide for the steady rest of the carrier device used for carrying out the present invention. FIG. 1 is a sectional view of the four-stage expansion / contraction guide when it is contracted, FIG. 2 is a plan view of the same, and FIG. 3 is an explanatory view showing an outline of the entire expansion / contraction mechanism.

Reference numeral 1 denotes a lowermost guide, which is formed in a hexagonal tubular shape, and guide rails 15, 15, 15 are fixed to the outer side central portion of every other side surface 1a, 1a, 1a over substantially the entire length thereof. .

Reference numeral 2 is a hexagonal tubular second step guide having the same length as the guide 1 into which the guide 1 is inserted, and the side surfaces 2 a, 2 a abutting on the alternate side surfaces 1 a, 1 a, 1 a of the guide 1. , 2a is provided with a guide roller 16 for guiding the guide rail 15.

Then, the same guide rails 15 are fixed to the outer sides of the side surfaces 2b 1, 2b, 2b of the guide 2 that are in contact with the other side surfaces 1b, 1b, 1b of the guide 1, respectively.

Reference numeral 3 denotes a hexagonal cylindrical third step guide having the same length as the guide 2 into which the guide 2 is inserted, and is provided inside the side surfaces 3 b, 3 b, 3 b abutting on the side surfaces 2 b, 2 b, 2 b of the guide 2. A guide roller 16 for guiding the guide rail 15 is provided.

Then, a guide rail 17 similar to the guide rail 15 is fixed to the outside of the central portion of every other side surface 3 a, 3 a, 3 a of the guide 3.

Reference numeral 4 denotes a hexagonal tubular uppermost (fourth) guide having the same length as the guide 3 into which the guide 3 is inserted, and is attached to every other side surface 3 a, 3 a, 3 a of the guide 3. A guide roller 18 that guides the guide rail 17 is provided on the inner side of the contacting side surfaces 4a, 4a, 4a.

Reference numeral 5 denotes a first equalizer sheave rotatably supported on upper portions on both sides outside every other side surface 1 a, 1 a, 1 a of the lowermost guide 1, and a first equalizer sheave installed on the sheaves 5, 5. The tension of the wire rope 6 is made uniform.

Reference numeral 7 denotes a first sheave rotatably supported on the inner sides of the lower portions of the other side surfaces 2b, 2b, 2b of the second stage guide 2, and a first wire rope installed on each of the first equalizer sheaves 5 and 5. Return both ends of 6 upward.

Reference numeral 8 denotes the second guide 2 of the third stage, which is attached to the other side surfaces 2b, 2b, 2b of the guide 2 and in which the mounting tool 8a is fixed to the central portion of the upper side surfaces 3b, 3b, 3b. 1. Fix both ends of the first wire rope 6 which has returned to the above with the wire rope adjustment fittings.

Reference numeral 9 denotes a nut, which is inserted into the lower portion of each first wire rope adjustment fitting 8 and adjusts the position of the adjustment fitting 8 with respect to the fixture 8 a to adjust the tension of each first wire rope 6.

Reference numeral 10 is a second equalizer sheave pivotally supported by two on the outer side of the other side surfaces 2b, 2b, 2b of the second-stage guide 2 so as to rotate by two, and a second wiper installed on the sheaves 10, 10. The tension of the rope 11 is made uniform.

Reference numeral 12 denotes a second sheave that is rotatably supported by two slides on the inner sides of the lower portions of the side surfaces 3 a, 3 a, 3 a of the third stage guide 3 that are placed alternately, and is installed on each of the equalizer sheaves 10, 10. The both ends of the second wire rope 11 thus completed are returned upward.

Reference numeral 13 denotes a guide 4 at the top of the mast 3, and two fixing fixtures 13a are fixed to the center portions of the upper inner sides of the side surfaces 4a, 4a, 4a which are in contact with the alternate side surfaces 3a, 3a, 3a of the mast 3. Both ends of the second wire rope 11 which has returned to the above are fixed by the second wire rope adjusting metal fittings.

Reference numeral 14 denotes a nut, which is inserted into the lower portion of each second wire rope adjustment fitting 13 to adjust the position of the adjustment fitting 13 with respect to the fixture 13 a and adjust the tension of each second wire rope 11.

When the fifth-stage guide is provided, two third equalizer sheaves are provided on the outer sides of the upper portions of the side surfaces 3a, 3a, 3a of the third-stage guide 3 which are placed every other side.

Then, two third sheaves are provided inside the lower portions of the other side surfaces 4b, 4b, 4b of the fourth stage guide 4, and a third wire rope is installed on each of the third equalizer sheaves. Both ends of the rope are returned upward through the third sheave.

Next, the return wire is returned to the third wire rope adjusting metal fitting in which the fixture is fixed to the central portion on the upper inner side of the surface of the fifth step guide which is in contact with the other side surfaces 4b, 4b, 4b of the guide 4. 3 Fix both ends of the wire rope.

As described above, by sequentially applying the same mechanism to six or more stages, it is possible to easily deal with a large number of guide stages.

[0045]

[Effect of device]

 With this configuration, the telescopic guide of the present invention is interposed between the trolley equipped with the hoisting machine and the hoisting equipment at the end of the wire rope of the hoisting machine. Since the guide 1 is pulled up at the same time, and the first and second wire ropes 6 and 11, the equalizer sheaves 5 and 10, and the sheaves 7 and 12 simultaneously contract the telescopic mast, the load on the hoisting machine is reduced. It is constant from the lower limit to the upper limit.

Further, unlike the conventional case, it does not hit the metal fittings due to the mechanical limit of each stage, does not generate vibration and noise, and even when it is used for the purpose of a conveyor device, there is no malfunction due to the vibration and the load Coupled with the fact that it becomes constant, smoother driving becomes possible.

Further, the equalizer sheaves 5, 10, the wire ropes 6, 11, the sheaves 7, 12 and the wire rope adjustment fittings 8, 13 are attached between the side surfaces of the upper and lower guides and do not appear outside the telescopic guides. The guides can protect each one and improve the appearance.

[Brief description of drawings]

FIG. 1 is a central longitudinal sectional view in which only a lowermost guide is partially cut when a four-stage telescopic guide of the present invention is contracted.

FIG. 2 is a plan view of FIG. 1 in which first and second wire ropes and wire rope adjusting fittings are omitted.

FIG. 3 is a schematic explanatory view showing the entire expansion / contraction mechanism of the expansion / contraction guide of the present invention.

[Explanation of reference numerals] 1 guide on the bottom stage 1a every other side face 1b other side face 2 second stage guide 2a every other side face 2b other side face 3 third stage guide 3a every other side face 3b other Side 4 Fourth guide (uppermost) 4a Every other side 4b Other side 5 First equalizer sheave 6 1st wire rope 7 1st sheave 8 1st wire rope adjustment fitting 8a Fixture 9 Nut 10th 2 Equalizer sheave 11 2nd wire rope 12 2nd sheave 13 2nd wire rope adjustment metal fitting 13a Fixture 14 Nut 15 Guide rail 16 Guide roller 17 Guide rail 18 Guide roller

Claims (1)

[Scope of utility model registration request] A multistage hexagonal tubular telescopic guide in which the uppermost guide is fixed to an upper trolley equipped with a hoisting machine, and the lowermost guide is fixed to a suspender suspended by a wire rope of the hoisting machine. In the above, in the upper part of the lowermost guide, two first equalizer sheaves are provided on the outside of every other side, and two of the first equalizer sheaves are provided on the inner side of the other side of the lower part of the guide on the second stage. The first sheave is provided, and both ends of the first wire rope erected on the two first equalizer sheaves are connected to the first equalizer sheave.
Provide a first wire rope adjustment fitting to be fixed to the inside of the other side surface of the upper part of the third step guide other than the other side surface through the sheave, and install other than the other side surface of the second step guide upper part. Two second equalizer sheaves are provided on the outside of the side surface,
A second sheave is provided inside every other side of the lower part of the guide of the third step, and both ends of the second wire rope laid on each of the two second equalizer sheaves are connected through the second sheave to the fourth step of the fourth step. A second wire rope adjustment fitting fixed to every other side of the upper part of the guide is provided, and a simultaneous expansion and contraction mechanism is provided below in which the guide is sequentially installed in multiple steps. guide.