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拉杆液压缸和焊接液压缸的区别?如何选择?
发布时间(jian):2016-12-14 10:09:18 浏览次(ci)数(shu):10059

 

什(shen)(shen)么时候选拉杆液压缸,什(shen)(shen)么时候选(xuan)焊接液压(ya)缸?两者的区别是什么?

我(wo)们先来看一个液压油缸分(fen)类表:

                    

 油缸分(fen)类

产品(pin)系列(lie)

最大使用压力

拉杆

MOB

7 Mpa

HOB

14 Mpa

YG

21 Mpa

焊接

RO

14 Mpa

HRO

21 Mpa

HSG

21 Mpa

Y-HG1

25 Mpa

其(qi)他定制

31.5 Mpa

 

 拉(la)杆液压缸 Tie rod cylinder 

拉杆液(ye)压(ya)缸(gang)(gang)靠螺(luo)丝(si)(si)杆连接前后缸(gang)(gang)盖(gai),小(xiao)缸(gang)(gang)径(jing)时(shi)为四根螺(luo)丝(si)(si)杆,大(da)缸(gang)(gang)径(jing)会加多螺(luo)丝(si)(si)杆的(de)数(shu)量(liang)来保证油缸(gang)(gang)的(de)耐压(ya)性,比如6根、16根,甚至20根。

不同的使用压力,螺丝杆的材质不同,可能为A345号、合金钢。

 

Tie rod style hydraulic cylinders use high strength threaded steel rods to hold the two end caps to the cylinder barrel. This method of construction is most often seen in industrial factory applications. Small bore cylinders usually have 4 tie rods, while large borecylinders may require as many as 16 or 20 tie rods in order to retain the endcaps under the tremendous forces produced.

拉杆液压缸优势 Advantages

1)易于(yu)拆装、维修;

2)多为标准(zhun)系(xi)列,半成品或成品有(you)库(ku)存,交(jiao)期较短。

Tie rod style cylinders can be completely disassembled for service and repair, and they are not always customizable.

 

 焊接液压(ya)缸 Welded cylinder

焊(han)接(jie)液压缸的后盖焊(han)接(jie)在(zai)缸筒上(shang),油(you)口焊(han)接(jie)在(zai)缸筒上(shang),前(qian)盖与缸筒通(tong)常使用螺(luo)纹或螺(luo)栓固定。

Welded body cylinders have no tie rods. The barrel is welded directly to the end caps. The ports are welded to the barrel. The front rod gland is usually threaded into or bolted to the cylinder barrel. This allows the piston rod assembly and the rod seals to be removed for service.

 

 

焊接液压缸的优势 Advantages

1)整体的(de)安装尺寸小于(yu)拉(la)杆油缸;

2)比拉(la)杆(gan)油缸(gang)能(neng)够(gou)承受更大的压力;

3)更容(rong)易定制,比(bi)如特(te)(te)殊油口、特(te)(te)殊安装方式、加(jia)装锁紧(jin)阀等

Welded cylinders have a narrower body and often a shorter overall length enabling them to fit better into the tight confines of machinery. Welded cylinders do not suffer from failure due to tie rod stretch at high pressures and long strokes. The welded design also lends itself to customization. Special features are easily added to the cylinder body, including special ports, custom mounts, valve manifolds, and so on.

 

 

 

总结(jie):

1)安装空间(jian)够(gou),压力小(xiao),行程(cheng)短,选(xuan)拉杆液压缸;

2)安装空间有限(xian)制,压力大,选(xuan)焊(han)接液压缸;

3)使用压力大,工(gong)况比较恶(e)劣,可(ke)能需要定期更换密(mi)封件,选拉杆液压缸;

4)油口(kou)位置有特殊要(yao)求,或需加装(zhuang)液压锁或平(ping)衡(heng)阀等,选焊接油缸。

 

 

 

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