J9九游会AG

压缩弹簧,压力弹簧参数认知

时间:2018-05-26     阅读(du)次数:3893

概述(shu)

是应用(yong)(yong)(yong)尤为广(guang)的(de)弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)之一。它所(suo)用(yong)(yong)(yong)的(de)材(cai)料截面多(duo)(duo)为圆(yuan)形(xing)(xing),也有用(yong)(yong)(yong)矩形(xing)(xing)和多(duo)(duo)股(gu)钢萦卷(juan)制(zhi)的(de),弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)一般(ban)为等节距的(de),压(ya)缩弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)的(de)形(xing)(xing)状有:圆(yuan)柱形(xing)(xing)、圆(yuan)锥形(xing)(xing)、中凸形(xing)(xing)和中凹形(xing)(xing)以及少量的(de)非(fei)圆(yuan)形(xing)(xing)等,大至可分为:圆(yuan)柱螺旋压(ya)缩弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang),非(fei)圆(yuan)形(xing)(xing)弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)圈螺旋弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)、非(fei)线性特性线螺旋弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)、多(duo)(duo)股(gu)螺旋压(ya)缩弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)、矩形(xing)(xing)螺旋压(ya)缩等多(duo)(duo)种压(ya)缩弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang),按照制(zhi)造工艺可以分为冷卷(juan)弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)和热卷(juan)弹(dan)(dan)(dan)(dan)(dan)簧(huang)(huang)。


特点(dian)

压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang)(CompressionSprings) 对外载压(ya)(ya)力提供(gong)反抗力量。压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang)一般是(shi)金属丝(si)等节(jie)距盘绕和有(you)(you)固定的(de)(de)线径。压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang)利用(yong)多(duo)个开放线圈对外载压(ya)(ya)力(如重力压(ya)(ya)下车轮,或(huo)者身(shen)体压(ya)(ya)在床褥上)供(gong)给(ji)抵抗力量。也(ye)就是(shi),他们回推以反抗外部压(ya)(ya)力。压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang)一般是(shi)金属丝(si)等节(jie)距盘绕和有(you)(you)固定的(de)(de)线径。此外,也(ye)有(you)(you)圆(yuan)锥形(xing)的(de)(de)压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang),或(huo)者圆(yuan)锥和直线型组(zu)合的(de)(de)弹(dan)(dan)(dan)簧(huang)。根据不同(tong)的(de)(de)应(ying)用(yong)领域,压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang)可用(yong)于抵抗压(ya)(ya)力和(或(huo))存(cun)储能量。圆(yuan)形(xing)金属丝(si)是(shi)压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang)常用(yong)的(de)(de),但也(ye)有(you)(you)正方形(xing)、长方形(xing)和特殊形(xing)状的(de)(de)金属丝(si)制造出的(de)(de)压(ya)(ya)缩(suo)弹(dan)(dan)(dan)簧(huang)。

 

应用 

压缩弹(dan)簧的应用要分为热(re)卷(juan)弹(dan)簧和冷卷(juan)弹(dan)簧两种。

 

热卷弹簧(huang)

材(cai)料直径(jing)从8MM以(yi)上到(dao)(dao)85MM(甚(shen)至到(dao)(dao)100),每个弹(dan)簧(huang)(huang)(huang)(huang)承(cheng)载(zai)达数十(shi)吨者称为大型螺(luo)(luo)旋(xuan)弹(dan)簧(huang)(huang)(huang)(huang)。这种(zhong)热(re)成(cheng)形(xing)弹(dan)簧(huang)(huang)(huang)(huang)的(de)(de)用(yong)(yong)(yong)途尤方(fang),在一般机(ji)(ji)(ji)械有各(ge)(ge)种(zhong)各(ge)(ge)样的(de)(de)用(yong)(yong)(yong)途,例如:蒸汽用(yong)(yong)(yong)安全阀弹(dan)簧(huang)(huang)(huang)(huang)、船(chuan)舶内燃(ran)机(ji)(ji)(ji)的(de)(de)螺(luo)(luo)旋(xuan)弹(dan)簧(huang)(huang)(huang)(huang)以(yi)及各(ge)(ge)种(zhong)汽车(che)(che)用(yong)(yong)(yong)悬挂螺(luo)(luo)旋(xuan)弹(dan)簧(huang)(huang)(huang)(huang);  材(cai)料直径(jing)为8到(dao)(dao)18.5MM,这是(shi)(shi)热(re)成(cheng)形(xing)中尺寸较小(xiao)的(de)(de)螺(luo)(luo)旋(xuan)弹(dan)簧(huang)(huang)(huang)(huang);铁路车(che)(che)辆用(yong)(yong)(yong)的(de)(de)台车(che)(che)摇(yao)枕簧(huang)(huang)(huang)(huang)及车(che)(che)轴簧(huang)(huang)(huang)(huang)等缓冲(chong)弹(dan)簧(huang)(huang)(huang)(huang),其材(cai)料直径(jing)为9到(dao)(dao)60MM;而工程机(ji)(ji)(ji)械,特别是(shi)(shi)推土机(ji)(ji)(ji)和压路机(ji)(ji)(ji)等用(yong)(yong)(yong)的(de)(de)后座(zuo)(反冲(chong))螺(luo)(luo)旋(xuan)弹(dan)簧(huang)(huang)(huang)(huang),其材(cai)料为16到(dao)(dao)75MM,这是(shi)(shi)一些高应力下(xia)使用(yong)(yong)(yong)的(de)(de)大型螺(luo)(luo)旋(xuan)弹(dan)簧(huang)(huang)(huang)(huang)。

 

冷卷弹(dan)簧(huang)  

冷(leng)成型(xing)的(de)小螺旋弹簧的(de)种类很多,例如(ru):日(ri)本弹簧工业会规格缩(suo)写为"JSMA No.7-1979"实用小型(xing)压缩(suo)螺旋弹簧”中(zhong),线(xian)径(jing)为0.2到(dao)(dao)3.2MM,圈外(wai)(wai)径(jing)在(zai)(zai)2-36MM范(fan)(fan)围就有230种,JSMA No.8-1972"实用小型(xing)拉伸螺旋弹簧"中(zhong),线(xian)径(jing)为0.2-2.0MM、圈外(wai)(wai)径(jing)在(zai)(zai)2-20MM范(fan)(fan)围内就有212种。德国DIN2008中(zhong)规定(ding)冷(leng)成形压缩(suo)弹簧钢丝的(de)直径(jing)在(zai)(zai)0.1到(dao)(dao)10MM范(fan)(fan)围内。英美等(deng)国常采(cai)用0.5到(dao)(dao)12.5MM丝径(jing)的(de)材料制造冷(leng)成形的(de)小型(xing)弹簧簧。我国弹簧行业标准(zhun)中(zhong)规定(ding),冷(leng)成形螺旋弹簧的(de)材料直径(jing)为0.2到(dao)(dao)8MM。


生产设(she)计

1.看实际产(chan)品(pin)需(xu)求(qiu)来自行选(xuan)择弹簧材料。一(yi)般分为(wei)钢(gang)(gang)丝与不(bu)锈(xiu)钢(gang)(gang)两大类(lei)。

钢丝,同样线直径生产(chan)出来的弹簧力度会(hui)比(bi)不锈钢大,但很(hen)容(rong)易锈蚀。需做后续防锈处理,具体阅(yue)读本(ben)站电(dian)镀类文章。

2.根据(ju)产品(pin)要(yao)求,确定弹簧的内外径(jing),有效圈(quan)数,及线径(jing)的取值(zhi)范围(wei)。

弹(dan)簧设计需知(zhi)道一些必知(zhi)参数(也可(ke)由客户提(ti)供产品(pin)装配件(jian),通过实配设计),通过这些参数来(lai)设计合适的弹(dan)簧。以(yi)极少成本,尤佳性(xing)能为设计准则。

3.将相关参(can)(can)数代(dai)入设计参(can)(can)数公式. 

设(she)计(ji)压缩弹(dan)簧(huang)需要知(zhi)道哪些已知(zhi)条(tiao)件

设计一个简单的压力弹簧需要知道以下几个参(can)数(shu):

材(cai)质-材(cai)料的材(cai)质

线径-弹簧的材料直径

外径(jing)-弹(dan)簧外直(zhi)径(jing)

圈数-总(zong)圈数和两端支撑圈数各(ge)多少(shao)圈

自由长-自由状态下本体长度

力度(du)(du)(du)-弹簧有力度(du)(du)(du)要求时需知(zhi)道弹簧的工作高度(du)(du)(du)---弹簧压(ya)到(或压(ya)下)多少长度(du)(du)(du)时他(ta)的力度(du)(du)(du)为(wei)多少。


压(ya)缩弹簧力度关系

弹簧线(xian)径(jing)越大(da)、外径(jing)越小、圈数越少、长(zhang)度越长(zhang)、力度就越大(da)。反之则小。