CN101510453A - Buffering device for balance lever of nuclear plant crane lifting mechanism - Google Patents
Buffering device for balance lever of nuclear plant crane lifting mechanism Download PDFInfo
- Publication number
- CN101510453A CN101510453A CNA2009100739807A CN200910073980A CN101510453A CN 101510453 A CN101510453 A CN 101510453A CN A2009100739807 A CNA2009100739807 A CN A2009100739807A CN 200910073980 A CN200910073980 A CN 200910073980A CN 101510453 A CN101510453 A CN 101510453A
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- China
- Prior art keywords
- oil cylinder
- balance lever
- wire rope
- lever
- balanced lever
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a buffer unit of a balance lever of a hoisting mechanism of a nuclear power plant hoister, relating to a hoister used in a nuclear power plant. The hoister comprises the balance lever, a support connected with the middle of the balance lever, and left and right steel wire ropes which are symmetrically arranged at two sides of the balance lever by a lantern ring, and is characterized in that: two ends of the balance lever are respectively connected with piston rods of a left oil cylinder and a right oil cylinder; and the left oil cylinder and the right oil cylinder are connected with each other by oil pipes and a hydraulic system. Since the left oil cylinder and the right oil cylinder are directly connected with the balance lever, when the right steel wire rope does not work, the right oil cylinder immediately rises slowly and the left oil cylinder immediately goes down slowly so as to play a role in buffering; meanwhile, the balance lever slowly inclines and does not impact the left steel wire rope.
Description
Technical field
The present invention relates to crane of nuclear power plant, the snubber assembly of balanced lever when particularly a kind of wire rope of crane hoisting mechanism lost efficacy.
Background technology
The safety requirements of used in nuclear power station crane is very high, especially lifting mechanism.Behind any one part failure of lifting mechanism, keep counterweight balance, therefore, the balanced lever device of crane of nuclear power plant need be provided with impact damper.As shown in Figure 1, the balanced lever device of prior art, its structure is: be installed on the balanced lever bearing 2 in the middle of the balanced lever 1, the two ends of balanced lever 1 are connected with left wire rope 4, right wire rope 6 respectively by the collar or cover of wedge 3, are provided with impact damper 5 below balanced lever 1.When left wire rope 4 lost efficacy, balanced lever 1 will run-off the straight, balanced lever 1 with can play buffer action after impact damper 5 contacts.Because the impact damper of prior art is installed in the below that a segment distance is arranged with balanced lever 1, when left wire rope 4 lost efficacy, with before impact damper 5 contacts, can cause great impact to right wire rope 6 at balanced lever 1.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of snubber assembly of balance lever of nuclear plant crane lifting mechanism is provided.When steel cable lost efficacy, can not impact to another root wire rope.
The present invention is achieved through the following technical solutions its goal of the invention.
A kind of snubber assembly of balance lever of nuclear plant crane lifting mechanism, comprise: balanced lever, with the bearing that is connected in the middle of the balanced lever, be installed in the left wire rope of balanced lever both sides, right wire rope symmetrically by the collar, it is characterized in that: the two ends of described balanced lever are connected with the piston rod of left oil cylinder, right oil cylinder respectively, and described left oil cylinder, right oil cylinder interconnect by oil pipe and hydraulic system.
The present invention compared with prior art because left oil cylinder, right oil cylinder directly link to each other with balanced lever, when right wire rope inefficacy, right oil cylinder slowly rises immediately, and left oil cylinder slowly descends immediately, in time plays buffer action, balanced lever slowly tilts simultaneously, can not impact to left wire rope.
Description of drawings
Fig. 1 is the structural representation of prior art balanced lever snubber assembly;
Fig. 2 is the structural representation of balanced lever snubber assembly of the present invention.
The present invention is elaborated by preferred embodiment below in conjunction with accompanying drawing.
Embodiment
As shown in Figure 2, a kind of snubber assembly of balance lever of nuclear plant crane lifting mechanism, form by balanced lever (1), bearing (2), left wire rope (6), right wire rope (4), be installed on the bearing (2) in the middle of the described balanced lever (1), described left wire rope (6), right wire rope (4) are installed in balanced lever (1) both sides symmetrically by the collar (3), the two ends of described balanced lever (1) are connected with the piston of left oil cylinder (10), right oil cylinder (8) respectively, and described left oil cylinder (10), right oil cylinder (8) interconnect by oil pipe (9) and hydraulic system (7).
Because left oil cylinder (10), right oil cylinder (8) directly link to each other with balanced lever (1), when right wire rope (4) lost efficacy, right oil cylinder (8) slowly rises immediately, left side oil cylinder (10) slowly descends immediately, in time play buffer action, balanced lever (1) slowly tilts simultaneously, can not impact to left wire rope (6).
Claims (1)
1, a kind of snubber assembly of balance lever of nuclear plant crane lifting mechanism, comprise: balanced lever (1), with the bearing (2) that is connected in the middle of the balanced lever, be installed in left wire rope (6), the right wire rope (4) of balanced lever (1) both sides symmetrically by the collar (3), it is characterized in that: the two ends of described balanced lever (1) are connected with the piston rod of left oil cylinder (10), right oil cylinder (8) respectively, and described left oil cylinder (10), right oil cylinder (8) interconnect by oil pipe (9) and hydraulic system (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100739807A CN101510453B (en) | 2009-03-18 | 2009-03-18 | Buffering device for balance lever of nuclear plant crane lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100739807A CN101510453B (en) | 2009-03-18 | 2009-03-18 | Buffering device for balance lever of nuclear plant crane lifting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101510453A true CN101510453A (en) | 2009-08-19 |
| CN101510453B CN101510453B (en) | 2011-06-15 |
Family
ID=41002811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100739807A Active CN101510453B (en) | 2009-03-18 | 2009-03-18 | Buffering device for balance lever of nuclear plant crane lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101510453B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006392A (en) * | 2016-06-16 | 2016-10-12 | 王欢 | Rope breakage preventing and damping slow-descending device of crane |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1020375C (en) * | 1990-08-16 | 1993-04-28 | 太原重型机器厂 | Loading counterweight apparatus of crane lifting mechanism |
| TW353753B (en) * | 1997-07-18 | 1999-03-01 | Toshiba Corp | Reactor internal equipment hoisting apparatus |
| JP4244249B2 (en) * | 1998-10-28 | 2009-03-25 | トーヨーコーケン株式会社 | Balancer |
| JP2004144684A (en) * | 2002-10-28 | 2004-05-20 | Hitachi Plant Eng & Constr Co Ltd | Method and apparatus for pulling up reactor containment vessel head |
| CN2646114Y (en) * | 2003-10-10 | 2004-10-06 | 夹江水工机械厂 | Balancing and supporting device for hoisting equipment |
| CN100400409C (en) * | 2005-11-15 | 2008-07-09 | 万维柔 | Hydraulic automatic balanced crane installment |
| CN201002922Y (en) * | 2006-11-08 | 2008-01-09 | 太原重型机械集团有限公司 | Balance arm device for preventing crane hoisting mechanism wire rope rotating |
| CN201358147Y (en) * | 2009-03-11 | 2009-12-09 | 大连华锐股份有限公司 | Lifting mechanism for crane |
-
2009
- 2009-03-18 CN CN2009100739807A patent/CN101510453B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006392A (en) * | 2016-06-16 | 2016-10-12 | 王欢 | Rope breakage preventing and damping slow-descending device of crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101510453B (en) | 2011-06-15 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |