CN104016239B - Traverse crane stops shock absorber - Google Patents
Traverse crane stops shock absorber Download PDFInfo
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- CN104016239B CN104016239B CN201410230805.5A CN201410230805A CN104016239B CN 104016239 B CN104016239 B CN 104016239B CN 201410230805 A CN201410230805 A CN 201410230805A CN 104016239 B CN104016239 B CN 104016239B
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- plunger
- crane
- hole
- hydraulic ram
- shock absorber
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Abstract
The invention belongs to overhead traveling crane machinery equipment technical field, especially relate to a kind of traverse crane and stop shock absorber, comprise four shock absorbers, described shock absorber comprises the permanent seat be fixedly connected with crane vehicle bottom protruding parts, afterbody is the buffer compression mechanism that is connected of permanent seat therewith, be fixed on raming of this buffer compression mechanism head, it is characterized in that buffer compression mechanism comprises hydraulic ram, be located at the through hole plunger in this hydraulic ram, the plunger rod that is connected of through hole plunger therewith, be located at the Compress Spring on this plunger rod, be located at the termination of this Compress Spring and the damping panel be abutted against mutually with through hole plunger end face.Invention increases hydraulic ram, possessed hydraulic cushion function, enable recoil of spring be subject to speed limiting constraint, reduce the rigid impact of crane and stopper, avoid the generation of the serious accidents such as the dolly derailing on crane.
Description
Technical field
The invention belongs to overhead traveling crane machinery equipment technical field, especially relate to a kind of traverse crane and stop shock absorber.
Background technology
Bridge-type large-tonnage clamshell crane is the major equipment that coal grabbed by boiler, because the night work time is longer, when lighting condition is not good, crane off-position often occurs and is forbidden or slip car to clash into the accident of crane stopper.Original crane shock absorber be generally the spring bumper that is arranged on crane cart corner extrusion position and be fixedly mounted on crane girder two ends constant resistance device with the use of, crane is made to have impact resistant capability, also the crane of advancing at a high speed in brake failure situation effectively can be stopped, avoid great derailment accident to occur.But expose the defect of spring bumper in collision and deficiency by multiple impact event: spring bumper with the effect can played buffering during crane minor impact stopper and stop, but brake failure or cause because of operational issue high-speed impact time then will there is another adverse side effects.Because impact is greater than spring resistivity, after deflection of spring to the limit, by the spring yield pressure abrupt release of compressive deformation to the limit, huge antagonistic force makes crane resilience, may cause dolly and flash derailing or huge pendulum accident of grabbing bucket.
Summary of the invention
The object of this invention is to provide a kind of alleviate crane clash into after screen resilience, the traverse crane avoiding fault spread and serious accident to occur stops shock absorber.
The object of the invention is to be realized by following technical proposals:
Traverse crane of the present invention stops shock absorber, comprise four shock absorbers being arranged on protruding parts, crane vehicle bottom corner, described shock absorber comprises the permanent seat be fixedly connected with crane vehicle bottom protruding parts, afterbody is the buffer compression mechanism that is connected of permanent seat therewith, be fixed on raming of this buffer compression mechanism head, it is characterized in that described buffer compression mechanism comprises hydraulic ram, be located at the through hole plunger in this hydraulic ram, the plunger rod that is connected of through hole plunger therewith, be located at the Compress Spring on this plunger rod, be located at the termination of this Compress Spring and the damping panel be abutted against mutually with described through hole plunger end face, described plunger rod is fixedly connected with described permanent seat through hydraulic ram lid, described through hole plunger end face is uniformly distributed with one group of plunger hole along the circumference, the center of circle of described damping panel overlaps with the described through hole plunger center of circle, and leave gap between described damping panel and described plunger hole.
Sealing arrangement is provided with between described hydraulic ram lid and described hydraulic ram.
Advantage of the present invention:
Traverse crane of the present invention stops that shock absorber adds hydraulic ram, has possessed hydraulic cushion function, has enable recoil of spring be subject to speed limiting constraint, reduces the rigid impact of crane and stopper, avoids the generation of the serious accidents such as the dolly derailing on crane.After adopting this shock absorber, the occurrence probability that the impact grinding of grab bucket, steel cable undermines accident also obviously reduces, year recondition expense can save nearly 50,000 yuan/platform.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, traverse crane of the present invention stops shock absorber, comprise four shock absorbers being arranged on protruding parts, crane vehicle bottom corner, described shock absorber comprises the permanent seat 7 be fixedly connected with crane vehicle bottom protruding parts, afterbody is the buffer compression mechanism that is connected of permanent seat 7 therewith, what be fixed on this buffer compression mechanism head rams 1, it is characterized in that described buffer compression mechanism comprises hydraulic ram 2, be located at the through hole plunger 3 in this hydraulic ram 2, the plunger rod 9 that is connected of through hole plunger 3 therewith, be located at the Compress Spring 5 on this plunger rod 9, be located at the termination of this Compress Spring 5 and the damping panel 4 be abutted against mutually with described through hole plunger 3 end face, described plunger rod 9 is fixedly connected with described permanent seat 7 through hydraulic ram lid 8, described through hole plunger 3 end face is uniformly distributed with one group of plunger hole 10 along the circumference, the center of circle of described damping panel 4 overlaps with described through hole plunger 3 center of circle, and leave gap between described damping panel 4 and described plunger hole 10.Damping panel 4 had both served the effect of support both compression spring 5, achieved again the flowing of both-sided pressure oil.By the flow velocity of control presssure oil, realize the object weakening Compress Spring 5 resilience impulsive force.
Be provided with sealing arrangement 6 between described hydraulic ram lid 8 and described hydraulic ram 2, the seepage of hydraulic actuating cylinder 2 inner fluid can be prevented.
Stop shock absorber of the present invention is arranged on protruding parts, crane vehicle bottom corner, be fixedly mounted on crane girder two ends constant resistance device 11 with the use of.During normality work, in hydraulic ram 2, fill hydraulic oil, when crane generation off-position is inaccurate or slip car accident time, stop that shock absorber will hit constant resistance device 11 with crane.Stop that raming of shock absorber 1 contacts with constant resistance device 11, when ram 1 by external impacts time, compressing Compress Spring 5 bounces back, now the A side oil pocket of through hole plunger reduces thereupon, and hydraulic oil is just opened damping panel 4 by plunger hole 10 and entered opposite side oil pocket B, when impulsive force be attenuated to be equal to or less than spring resist power time, Compress Spring 5 stops compression, and start to discharge elastic energy, now through hole plunger 3 need get back to Compress Spring 5 compress before position, be but subject to the restriction of hydraulic oil.When hydraulic oil enters B chamber from A chamber, push resistance suffered by damping panel 4 that spring 5 by compression acts on open by plunger hole 10 and very much not do not affect the atrophy of spring, but when hydraulic oil gets back to A chamber from B chamber, damping panel 4 encloses most plunger hole 10 under the action of the spring, hydraulic oil can only be back to A chamber by gap, due to very large by resistance, rebound velocity is restricted, achieve Compress Spring 5 slowly resilience, avoid rigid impact, decrease the occurrence probability of the serious accidents such as the dolly derailing on crane.After adopting this shock absorber, the occurrence probability that the impact grinding of grab bucket, steel cable undermines accident also obviously reduces, year recondition expense can save nearly 50,000 yuan/platform.
Claims (2)
1. a traverse crane stops shock absorber, comprise four shock absorbers being arranged on protruding parts, crane vehicle bottom corner, described shock absorber comprises the permanent seat be fixedly connected with crane vehicle bottom protruding parts, afterbody is the buffer compression mechanism that is connected of permanent seat therewith, be fixed on raming of this buffer compression mechanism head, it is characterized in that described buffer compression mechanism comprises hydraulic ram, be located at the through hole plunger in this hydraulic ram, the plunger rod that is connected of through hole plunger therewith, be located at the Compress Spring on this plunger rod, be located at the termination of this Compress Spring and the damping panel be abutted against mutually with described through hole plunger end face, described plunger rod is fixedly connected with described permanent seat through hydraulic ram lid, described through hole plunger end face is uniformly distributed with one group of plunger hole along the circumference, the center of circle of described damping panel overlaps with the described through hole plunger center of circle, and leave gap between described damping panel and described plunger hole.
2. traverse crane according to claim 1 stops shock absorber, it is characterized in that being provided with sealing arrangement between described hydraulic ram lid and described hydraulic ram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230805.5A CN104016239B (en) | 2014-05-29 | 2014-05-29 | Traverse crane stops shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230805.5A CN104016239B (en) | 2014-05-29 | 2014-05-29 | Traverse crane stops shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104016239A CN104016239A (en) | 2014-09-03 |
| CN104016239B true CN104016239B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410230805.5A Active CN104016239B (en) | 2014-05-29 | 2014-05-29 | Traverse crane stops shock absorber |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533340Y (en) * | 2001-12-27 | 2003-01-29 | 张书奇 | Automatic piston reciprocating hydraulic oil cylinder |
| CN2879381Y (en) * | 2006-02-28 | 2007-03-14 | 浙江开关厂有限公司 | Gradual damping oil buffer |
| CN100454458C (en) * | 2006-02-28 | 2009-01-21 | 浙江开关厂有限公司 | Gradual damping oil buffer |
| CN201810608U (en) * | 2010-09-20 | 2011-04-27 | 三一重工股份有限公司 | Hydrocylinder with buffer function, hydraulic system and reciprocating driving mechanism |
| CN202296098U (en) * | 2011-10-21 | 2012-07-04 | 浙江金洲管道科技股份有限公司 | Baffle buffering device for steel tube conveying roller bed |
| CN203865875U (en) * | 2014-05-29 | 2014-10-08 | 鞍钢集团矿业公司 | Blocking and buffering device for bridge crane |
-
2014
- 2014-05-29 CN CN201410230805.5A patent/CN104016239B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533340Y (en) * | 2001-12-27 | 2003-01-29 | 张书奇 | Automatic piston reciprocating hydraulic oil cylinder |
| CN2879381Y (en) * | 2006-02-28 | 2007-03-14 | 浙江开关厂有限公司 | Gradual damping oil buffer |
| CN100454458C (en) * | 2006-02-28 | 2009-01-21 | 浙江开关厂有限公司 | Gradual damping oil buffer |
| CN201810608U (en) * | 2010-09-20 | 2011-04-27 | 三一重工股份有限公司 | Hydrocylinder with buffer function, hydraulic system and reciprocating driving mechanism |
| CN202296098U (en) * | 2011-10-21 | 2012-07-04 | 浙江金洲管道科技股份有限公司 | Baffle buffering device for steel tube conveying roller bed |
| CN203865875U (en) * | 2014-05-29 | 2014-10-08 | 鞍钢集团矿业公司 | Blocking and buffering device for bridge crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104016239A (en) | 2014-09-03 |
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Anshan Iron & Steel Group Mining Co., Ltd. |