CN106006423A - Multi-multiplying power balance type variable multiplying power device - Google Patents

Multi-multiplying power balance type variable multiplying power device Download PDF

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Publication number
CN106006423A
CN106006423A CN201610645779.1A CN201610645779A CN106006423A CN 106006423 A CN106006423 A CN 106006423A CN 201610645779 A CN201610645779 A CN 201610645779A CN 106006423 A CN106006423 A CN 106006423A
Authority
CN
China
Prior art keywords
multiplying power
multiplying
movable pulley
pin
power running
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610645779.1A
Other languages
Chinese (zh)
Inventor
郭爱霞
胡水根
李太周
胡斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd
Original Assignee
Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd filed Critical Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd
Priority to CN201610645779.1A priority Critical patent/CN106006423A/en
Publication of CN106006423A publication Critical patent/CN106006423A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02Driving gear
    • B66D1/14Power transmissions between power sources and drums or barrels
    • B66D1/20Chain, belt, or friction drives, e.g. incorporating sheaves of fixed or variable ratio

Abstract

The invention discloses a multi-multiplying power balance type variable multiplying power device which comprises a fixed pulley, a guide pulley, a six-multiplying power movable pulley block, a two-multiplying power movable pulley block, a hook assembly and a balance beam, wherein the fixed pulley is mounted on a front trolley of a crane boom; the guide pulley is mounted on a rear trolley of the crane boom; the six-multiplying power movable pulley block is hung right under the fixed pulley through a steel wire rope; the two-multiplying power movable pulley block is hung right under the guide pulley through another steel wire rope; the hook assembly consists of a hook and a hook plate. Flexible alternation of multiple multiplying powers is achieved with different combinations of the hook assembly, the two multiplying power movable pulley blocks having different multiplying powers, and the balance beam, different requirements of multiple crane loads such as heavy-load low speed and light-load high speed in practical operation can be met, the lifting functions of a crane can be greatly enriched, and the lifting cost can be lowered; in addition, since the movable pulley blocks of different multiplying powers, the balance beam and the hook assembly are connected through hinge pins, the multi-multiplying power balance type variable multiplying power device is flexible to assemble and disassemble and convenient to use.

Description

A kind of many multiplying powers balanced type becomes multiplying factor device
Technical field
The present invention relates to a kind of hoisting machinery even-multiple many multiplying powers balanced type and become multiplying factor device.
Background technology
Along with hoisting machinery gradually develops to maximization, direction specialized, high efficiency, the feature big in order to adapt to maximization power jacking amount, the many employings of present hoisting machinery big multiplying power low speed.If but only meeting big multiplying power low speed and can make again that lifting appliance is lengthy and tedious, inefficiency.In order to give full play to the effective power of large lifting equipment, improving service efficiency, realize heavy-duty low-speed, underloading high speed, the design object of energy-conserving and environment-protective simultaneously, large lifting equipment preferably uses zoom rate assembly pulley device.So, just with big multiplying power assembly pulley device during heavy duty, but improving lifting velocity and work efficiency by changing pulley block ratio during underloading, therefore using zoom rate technology will be that the conventional of following large lifting equipment configures.
Summary of the invention
The purpose of the present invention becomes multiplying factor device for the one many multiplying powers balanced type provided in place of above-mentioned the deficiencies in the prior art just.Present invention accomplishes the different demands of the multiple lifting loads such as heavy-duty low-speed and underloading high speed in practical operation, greatly enriched the hoisting function of crane, reduced hoisting cost;It addition, the present invention dismounts flexible, easy to use.
The purpose of the present invention can be realized by following technique measures:
Fixed pulley that many multiplying powers balanced type of the present invention becomes before multiplying factor device includes being arranged on crane arm on dolly and the leading block on dolly after being arranged on crane arm, the two multiplying power running blocks immediately below leading block by the wire rope hanging six multiplying power running blocks immediately below described fixed pulley and hanging, the hook assembly being made up of suspension hook and suspension hook plate, and equalizer bar;It is separately installed with the bearing pin I for hanging corresponding component in the bottom of described six multiplying power running blocks and two multiplying power running blocks;Two ends upper top at described equalizer bar is separately provided for installing the upper engaging lug of bearing pin I, the lower engaging lug being coated with pin shaft II is set in the bottom of equalizer bar, and the level interval between described lower engaging lug axis and two multiplying power running block axis is three times (being realized the balance of moment when hanging weight below equalizer bar by the biasing of the arm of force) of the level interval between lower engaging lug axis and six multiplying power running block axis;The pin-and-hole I for installing bearing pin I it is machined with respectively and for installing the pin-and-hole II of pin shaft II on suspension hook plate in described hook assembly.
Heretofore described six multiplying power running blocks include that three are installed movable pulley on the mounting shaft and are arranged on about whole described movable pulley four the movable pulley boatswain chairs I outside two and (undertaken the pulling force of steel wire rope by movable pulley boatswain chair I, reduce the diameter installing axle, it is simple to the replacing of axle is installed);The pin-and-hole I for installing bearing pin I all it is machined with in the bottom of described movable pulley boatswain chair I.
Heretofore described two multiplying power running blocks include that one is installed movable pulley on the mounting shaft and is arranged on about described movable pulley four the movable pulley boatswain chairs II outside two and (undertaken the pulling force of steel wire rope by movable pulley boatswain chair II, reduce the diameter installing axle, it is simple to the replacing of axle is installed);The pin-and-hole I for installing bearing pin I all it is machined with in the bottom of described movable pulley boatswain chair II.
Two all it are symmetrily processed with for the pin-and-hole II (so by two pin shaft II, hook assembly can be connected to the bottom of equalizer bar, be possible to prevent suspension hook plate in hook assembly to deflect in the way of twin shaft connection) installing pin shaft II on the most described lower engaging lug and suspension hook plate.
The operation principle of the present invention is as follows:
What the present invention utilized between hook assembly and two groups of different multiplying running blocks and equalizer bar different assembles the conversion realizing multiple multiplying power flexibly, meet the different demands of the multiple lifting loads such as heavy-duty low-speed and underloading high speed in practical operation, greatly enrich the hoisting function of crane, reduce hoisting cost;Further, since different multiplying running block, equalizer bar, hook assembly are the most all to be attached by bearing pin, so the present invention dismounts flexible, easy to use.
More specifically, when lifting by crane underloading object, the suspension hook of little tonnage only need to be assembled into suspension hook plate corresponding hook assembly, and be mounted on the bottom of movable pulley boatswain chair II in two multiplying power running blocks by bearing pin I, it is possible to realize two multiplying power liftings;In like manner, when the hook assembly of corresponding tonnage is mounted on the bottom of movable pulley boatswain chair I in six multiplying power running blocks by bearing pin I, it is possible to realize six multiplying power liftings;When lifting heavy duty object, need first by upper engaging lug and bearing pin I, the two ends of equalizer bar to be mounted on two multiplying power running blocks and the bottom of six multiplying power running blocks respectively, again corresponding large-tonnage hook assembly is mounted on the lower engaging lug bottom equalizer bar by two pin shaft II, thus can realize octuple rate lifting.
In sum, the present invention is to realize two multiplying powers, six multiplying powers, the conversion of octuple rate flexibly by hook assembly and two multiplying power running blocks, different assembling between six multiplying power running blocks and equalizer bar.But the conversion of the multiplying power of the present invention is not limited only to this: such as realize two multiplying powers, four multiplying powers, the conversion of six multiplying powers flexibly by hook assembly and two multiplying power running blocks, different assembling between four multiplying power running blocks and equalizer bar, conversion realizing two multiplying powers, octuple rate, ten multiplying powers flexibly etc. is assembled by hook assembly and two multiplying power running blocks, different between octuple rate running block and equalizer bar, by that analogy, multiple different many multiplying powers conversion all can be realized by the present invention.
Beneficial effects of the present invention is as follows:
Present invention accomplishes the different demands of the multiple lifting loads such as heavy-duty low-speed and underloading high speed in practical operation, greatly enriched the hoisting function of crane, reduced hoisting cost;It addition, the present invention dismounts flexible, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation (being also octuple rate view when hoisting) of the present invention.
Fig. 2 is octuple rate wiring figure.
Fig. 3 is the structural representation of six multiplying power running blocks.
Fig. 4 is the structural representation of two multiplying power running blocks.
Fig. 5 is present invention view time in use six multiplying powers hoist.
Fig. 6 is six multiplying power wiring figures.
Fig. 7 is present invention view time in use two multiplying powers hoist.
Fig. 8 is two multiplying power wiring figures.
Sequence number explanation in figure: 1, fixed pulley, 2, six multiplying power running block, 2-1, movable pulley boatswain chair I, 3, leading block, 4, two multiplying power running blocks, 4-1, movable pulley boatswain chair II, 5, bearing pin I, 5 ', pin-and-hole I, 6, equalizer bar, the upper engaging lug of 6-1,6-2, lower engaging lug, 7, suspension hook plate, 8, suspension hook, 9, pin shaft II, 9 ', pin-and-hole II, 10, steel wire rope, the level interval between A, lower engaging lug axis and six multiplying power running block axis, the level interval between B, lower engaging lug axis and two multiplying power running block axis.
Detailed description of the invention
The present invention is further described below with reference to example (accompanying drawing):
As shown in Fig. 1, Fig. 5, Fig. 7, fixed pulley 1 that many multiplying powers balanced type of the present invention becomes before multiplying factor device includes being arranged on crane arm on dolly and the leading block 3 on dolly after being arranged on crane arm, six multiplying power running blocks 2 immediately below described fixed pulley 1 and the hanging two multiplying power running blocks 4 immediately below leading block 3 are hung by steel wire rope 10, the hook assembly being made up of suspension hook 8 and suspension hook plate 7, and equalizer bar 6;It is separately installed with the bearing pin I 5 for hanging corresponding component in the bottom of described six multiplying power running blocks 2 and two multiplying power running blocks 4;Two ends upper top at described equalizer bar 6 is separately provided for installing the upper engaging lug 6-1 of bearing pin I 5, the lower engaging lug 6-2 being coated with pin shaft II 9 is set in the bottom of equalizer bar 6, and level interval B between described lower engaging lug 6-2 axis and two multiplying power running block 4 axis is three times (being realized the balance of moment when hanging weight below equalizer bar 6 by the biasing of the arm of force) of level interval A between lower engaging lug 6-2 axis and six multiplying power running block 2 axis;The pin-and-hole I 5 for installing bearing pin I 5 it is machined with respectively on suspension hook plate 7 in described hook assembly ' and for installing the pin-and-hole II 9 of pin shaft II 9 '.
Heretofore described six multiplying power running blocks 2 include that three install movable pulley on the mounting shaft and are arranged on about whole described movable pulley four movable pulley boatswain chair I 2-1(outside two and see Fig. 1 and Fig. 2, the pulling force of steel wire rope is undertaken by movable pulley boatswain chair I, reduce the diameter installing axle, it is simple to the replacing of axle is installed);The pin-and-hole I 5 for installing bearing pin I 5 all it is machined with in the bottom of described movable pulley boatswain chair I 2-1 ' (seeing Fig. 1, Fig. 3 and Fig. 5).
Heretofore described two multiplying power running blocks 4 include that one installs movable pulley on the mounting shaft and is arranged on about described movable pulley four movable pulley boatswain chair II 4-1(outside two and sees Fig. 1 and Fig. 3, the pulling force of steel wire rope is undertaken by movable pulley boatswain chair II 4-1, reduce the diameter installing axle, it is simple to the replacing of axle is installed);The pin-and-hole I 5 for installing bearing pin I 5 all it is machined with in the bottom of described movable pulley boatswain chair II 4-1 ' (seeing Fig. 1, Fig. 4 and Fig. 7).
Two all it are symmetrily processed with for the pin-and-hole II 9 installing pin shaft II 9 on the most described lower engaging lug 6-2 and suspension hook plate 7 ' (see Fig. 1, so by two pin shaft II 9, hook assembly can be connected to the bottom of equalizer bar 6, be possible to prevent suspension hook plate 7 in hook assembly to deflect in the way of twin shaft connection).
The specifically used situation of the present invention is as follows:
When lifting by crane underloading object, only the suspension hook 8 of little tonnage need to be assembled into corresponding hook assembly with suspension hook plate 7, and it is mounted on the bottom of movable pulley boatswain chair II 4-1 in two multiplying power running blocks 4 by bearing pin I 5, it is possible to realize two multiplying power liftings (seeing Fig. 7, Fig. 8);In like manner, when the hook assembly of corresponding tonnage is mounted on the bottom of movable pulley boatswain chair I 2-1 in six multiplying power running blocks 2 by bearing pin I 5, it is possible to realize six multiplying power liftings (seeing Fig. 5, Fig. 6);When lifting heavy duty object, need first by upper engaging lug 6-1 and bearing pin I 5, the two ends of equalizer bar 6 to be mounted on two multiplying power running block 4 and the bottoms of six multiplying power running blocks 2 respectively, again corresponding large-tonnage hook assembly is mounted on the lower engaging lug 6-2 bottom equalizer bar 6 by two pin shaft II 9, thus can realize octuple rate lifting (seeing Fig. 1, Fig. 4).
In sum, the present invention is to realize two multiplying powers, six multiplying powers, the conversion of octuple rate flexibly by different the assembling between hook assembly and two multiplying power running block 4, six multiplying power running blocks 2 and equalizer bar 6.But the conversion of the multiplying power of the present invention is not limited only to this: such as realize two multiplying powers, four multiplying powers, the conversion of six multiplying powers flexibly by different the assembling between hook assembly and two multiplying power running block 4, four multiplying power running blocks and equalizer bar 6, conversion realizing two multiplying powers, octuple rate, ten multiplying powers flexibly etc. is assembled by hook assembly and two multiplying power running blocks 4, different between octuple rate running block and equalizer bar 6, by that analogy, multiple different many multiplying powers conversion all can be realized by the present invention.

Claims (4)

1. multiplying power balanced type more than a kind becomes multiplying factor device, it is characterized in that: it include being arranged on crane arm before fixed pulley (1) on dolly and the leading block (3) on dolly after being arranged on crane arm, at six multiplying power running blocks (2) of described fixed pulley (1) underface and two multiplying power running blocks (4) immediately below leading block (3) are hung by steel wire rope (10) hanging, the hook assembly being made up of suspension hook (8) and suspension hook plate (7), and equalizer bar (6);It is separately installed with the bearing pin I (5) for hanging corresponding component in the bottom of described six multiplying power running blocks (2) and two multiplying power running blocks (4);Two ends upper top at described equalizer bar (6) is separately provided for installing the upper engaging lug (6-1) of bearing pin I (5), the lower engaging lug (6-2) being coated with pin shaft II (9) is set in the bottom of equalizer bar (6), and the level interval (B) between described lower engaging lug (6-2) axis and two multiplying power running block (4) axis is three times of the level interval (A) between lower engaging lug (6-2) axis and six multiplying power running block (2) axis;It is machined with the pin-and-hole I (5 ') for installing bearing pin I (5) on suspension hook plate (7) in described hook assembly respectively and is used for installing the pin-and-hole II (9 ') of pin shaft II (9).
Many multiplying powers balanced type the most according to claim 1 becomes multiplying factor device, it is characterised in that: described six multiplying power running blocks (2) include that three install movable pulley on the mounting shaft and are arranged on about whole described movable pulley four the movable pulley boatswain chairs I (2-1) outside two;The pin-and-hole I (5 ') for installing bearing pin I (5) all it is machined with in the bottom of described movable pulley boatswain chair I (2-1).
Many multiplying powers balanced type the most according to claim 1 becomes multiplying factor device, it is characterized in that: described two multiplying power running blocks (4) include that one installs movable pulley on the mounting shaft and is arranged on about described movable pulley four the movable pulley boatswain chairs II (4-1) outside two, is all machined with the pin-and-hole I (5 ') for installing bearing pin I (5) in the bottom of described movable pulley boatswain chair II (4-1).
Many multiplying powers balanced type the most according to claim 1 becomes multiplying factor device, it is characterised in that: on described lower engaging lug (6-2) and suspension hook plate (7), all it is symmetrily processed with two for the pin-and-hole II (9 ') installing pin shaft II (9).
CN201610645779.1A 2016-08-09 2016-08-09 Multi-multiplying power balance type variable multiplying power device Pending CN106006423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610645779.1A CN106006423A (en) 2016-08-09 2016-08-09 Multi-multiplying power balance type variable multiplying power device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109573815A (en) * 2018-12-10 2019-04-05 中联重科股份有限公司 Movable pulley mounting rack, hook assembly and the crane of crane hook

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040084917A1 (en) * 2001-02-26 2004-05-06 Rudiger Zollondz Bottom hook block system
CN103613020A (en) * 2013-11-29 2014-03-05 中联重科股份有限公司 Combined-type pulley block and crane
CN104986681A (en) * 2015-07-01 2015-10-21 郑州科润机电工程有限公司 Power-variable device for single-power pulley block
CN105502196A (en) * 2016-02-15 2016-04-20 徐工集团工程机械股份有限公司 Pulley block combining structure, lifting hook and lifting device
CN205998919U (en) * 2016-08-09 2017-03-08 郑州科润机电工程有限公司 A kind of many multiplying powers balanced type becomes multiplying factor device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040084917A1 (en) * 2001-02-26 2004-05-06 Rudiger Zollondz Bottom hook block system
CN103613020A (en) * 2013-11-29 2014-03-05 中联重科股份有限公司 Combined-type pulley block and crane
CN104986681A (en) * 2015-07-01 2015-10-21 郑州科润机电工程有限公司 Power-variable device for single-power pulley block
CN105502196A (en) * 2016-02-15 2016-04-20 徐工集团工程机械股份有限公司 Pulley block combining structure, lifting hook and lifting device
CN205998919U (en) * 2016-08-09 2017-03-08 郑州科润机电工程有限公司 A kind of many multiplying powers balanced type becomes multiplying factor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109573815A (en) * 2018-12-10 2019-04-05 中联重科股份有限公司 Movable pulley mounting rack, hook assembly and the crane of crane hook

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