摘要
本次设计的题目是JD-2.5调度绞车。调度绞车由于结构简单、重量不大、移动方便,而被广泛应用于矿山地面、冶金矿场或建筑工地等进行调度和其它运输工作。
绞车的主要特点为:结构尺寸和重量较孝钢丝绳速度不高,安装及撤除操作方便、启动平衡(稳)、故障率低、常见故障易处理、维护方便。
我国许多调度绞车的设计是引进前苏联的技术,并在其基础上作了一些改进,本设计方案的主要特点:该型绞车采用两级内啮合传动和一级行星轮传动。Z1/Z2和Z3/Z4为两级内啮合传动,Z5、Z6、Z7组成行星传动机构。在电动机轴头上安装着加长套的齿轮Z1,通过内齿轮Z2、齿轮Z3和内齿轮Z4,把运动传到齿轮Z5上,齿轮Z5是行星轮系的中央轮(或称太阳轮),再带动两个行星齿轮Z6和大内齿轮Z7。行星齿轮自由地装在2根与带动固定连接的轴上,大内齿轮Z7齿圈外部装有工作闸,用于控制绞车滚筒运转。
为了达到良好的均载效果,在设计的均载机构中采取无多余约束的浮动方式。另外,变位齿轮的使用也可以获得准确的传动比,提高啮合传动质量和承载能力。
本次设计主要对两级内啮合传动和一级行星轮传动、滚筒结构、制动器等进行了详细的设计。
关键词:调度绞车;行星齿轮;行星传动;内啮合传动
Abstract
The title of this desig
n is jd-2.5 dispatchi
ngwi
nch. Due to its simple structure, smallweight a
nd co
nve
nie
nt moveme
nt, dispatchi
ngwi
nch iswidely used i
n mi
ne grou
nd, metallurgical field or co
nstructio
n site for dispatchi
ng a
nd other tra
nsportatio
nwork. The mai
n features of thewi
nch are: small structure size a
ndweight, low speed ofwire rope, co
nve
nie
nt i
nstallatio
n a
nd removal operatio
n, stable start-up, low failure rate, easy ha
ndli
ng of commo
n faults a
nd co
nve
nie
nt mai
nte
na
nce. The desig
n of ma
ny dispatchi
ngwi
nches i
n our cou
ntry is based o
n the tech
nology of the former Soviet U
nio
n a
nd some improveme
nts have bee
n made. The mai
n features of this desig
n scheme are: thewi
nch adopts two-stage i
nter
nal meshi
ng tra
nsmissio
n a
nd o
ne-stage pla
netary gear tra
nsmissio
n. Z1/ Z2 a
nd Z3/ Z4 are two-stage i
nter
nal meshi
ng tra
nsmissio
n, a
nd Z5, Z6 a
ndz7 co
nstitute pla
netary tra
nsmissio
n mecha
nism. A gear Z1with a
n exte
nsio
n sleeve is i
nstalled o
n the shaft head of the motor. Through the i
nter
nal gear Z2, gear Z3 a
nd i
nter
nal gear Z4, the moveme
nt is tra
nsmitted to the gear Z5. The gear Z5 is the ce
ntral gear(or su
n gear) of the pla
netary gear trai
n, a
nd the
n drives the two pla
netary gears Z6 a
nd the large i
nter
nal gearz7. The pla
netary gear is freely i
nstalled o
n two shaftswhich are fixedly co
n
nectedwith the drive, a
nd awork brake is i
nstalled outside the gear ri
ng of the big i
nter
nal gearz7,which is used to co
ntrol the operatio
n of thewi
nch drum. I
n order to achieve good load shari
ng effect, the floati
ng modewithout redu
nda
nt co
nstrai
nts is adopted i
n the desig
ned load shari
ng mecha
nism. I
n additio
n, the use of modified gear ca
n also obtai
n accurate tra
nsmissio
n ratio, improve the quality of meshi
ng tra
nsmissio
n a
nd beari
ng capacity. This desig
n mai
nly has carried o
n the detailed desig
n to the two-stage i
nter
nal meshi
ng tra
nsmissio
n a
nd the first-class pla
netary gear tra
nsmissio
n, the drum structure, the brake a
nd so o
n. Keywords: dispatchi
ngwi
nch; pla
netary gear; pla
netary tra
nsmissio
n; i
nter
nal meshi
ng tra
nsmissio
n 目录 一、整体方案设计1 1.1产品的名称、用途及主要设计参数7 1.2整体设计方案的确定7 1.3设计方案的改进8 二、牵引钢丝绳直径及卷筒直径的确定9 2.1钢丝绳的选择9 2.1.1计算钢丝绳直径9 2.1.2钢丝绳强度校核: 9 2.2卷筒9 2.2.1卷筒的名义直径9 2.2.2确定卷筒的宽度B 10 2.2.3初选钢丝绳的缠绕层数为: 10 2.2.5确定卷筒直径10 2.2.6卷筒厚度: 10 三、电机的选取: 12 3.1系统的总效率12 3.2绳速的确定12 3.3电机的选型12 四、总传动比的计算及传动比的分配13 4.1总传动比的计算: 13 4.2传动比的分配13 五、两级内齿圈传动设计15 5.1齿轮材料处理工艺及制造工艺的选定15 5.2确定各主要参数15 5.2.1传动比15 5.2.2第一级传动齿轮模数m 15 5.2.3内啮合标准圆柱齿轮传动几何尺寸的计算16 5.2.4齿轮接触疲劳强度计算16 5.2.5齿轮强度校验18 5.3第二级传动齿轮模数m 22 5.3.1内啮合标准圆柱齿轮传动几何尺寸的计算23 5.3.2齿轮接触疲劳强度设计计算23 5.3.3齿轮强度校验26 六、行星轮传动设计30 6.1齿轮材料处理工艺及制造工艺的选定30 6.2确定各主要参数30 6.2.1传动比30 6.2.2行星轮数目30 6.2.3载荷不均衡系数30 6.2.4配齿计算30 6.2.5太阳轮分度圆直径31 6.2.6计算变位系数32 6.3几何尺寸计算35 6.4啮合要素计算36 6.4.1 a—c传动端面重合度36 6.4.2 c—b传动端面重合度36 6.5齿轮强度验算37 6.5.1外啮合37 6.5.2内啮合42 七、主轴的结构设计46 7.1轴的材料的选定46 7.2轴直径的初步估算46 7.3轴的结构设计46 八、行星轴的结构设计和校核61 8.1行星轴61 8.1.1结构设计61 8.1.2行星轴材料61 8.1.3轴的受力分析61 8.1.4按当量弯矩计算轴径62 8.1.5轴的疲劳强度安全因数校核计算62 8.1.6轴的表强度安全因数校核计算63 8.2行星轴校验64 8.2.1轴径64 8.2.2行星轴材料64 8.2.3轴的受力分析64 8.2.4按当量弯矩计算轴径65 8.2.5轴的疲劳强度安全因数校核计算66 8.2.6轴的表强度安全因数校核计算67 九、行星架结构设计69 9.1行星架形式的确定和材料的选定69 9.2行星架的技术要求69 十、轴承及校核71 10.1调心滚子轴承71 10.2深汮球轴承72 十一、联接(普通平键联接) 75 11.1主轴上的平键联接75 11.1.1键的选取75 11.1.2键联接的强度校核75 11.2滚筒和行星架之间的联接76 11.2.1键的选取76 11.2.2键联接的强度校核76 十二、减速器铸造机体结构尺寸77 12.1铸造机体的壁厚77 12.2螺栓直径77 十三、制动器的设计计算78 13.1制动器的作用与要求78 13.1.1制动器的作用78 13.1.2制动器的要求78 13.2制动器的类型比较与选择78 13.2.1制动器的类型78 13.2.2制动器的选择78 13.3外抱闸式制动器结构78 13.4外抱闸式制动器的几何参数计算79 十四、主要零件的技术要求85 14.1对齿轮的要求85 14.1.1齿轮精度85 14.1.2对行星轮制造方面的几点要求85 14.1.3齿轮材料和热处理要求85 十五、维护及修理86 15.1润滑86 15.2维护86 15.3修理86 设计总结87 参考文献88
展开...
n is jd-2.5 dispatchi
ngwi
nch. Due to its simple structure, smallweight a
nd co
nve
nie
nt moveme
nt, dispatchi
ngwi
nch iswidely used i
n mi
ne grou
nd, metallurgical field or co
nstructio
n site for dispatchi
ng a
nd other tra
nsportatio
nwork. The mai
n features of thewi
nch are: small structure size a
ndweight, low speed ofwire rope, co
nve
nie
nt i
nstallatio
n a
nd removal operatio
n, stable start-up, low failure rate, easy ha
ndli
ng of commo
n faults a
nd co
nve
nie
nt mai
nte
na
nce. The desig
n of ma
ny dispatchi
ngwi
nches i
n our cou
ntry is based o
n the tech
nology of the former Soviet U
nio
n a
nd some improveme
nts have bee
n made. The mai
n features of this desig
n scheme are: thewi
nch adopts two-stage i
nter
nal meshi
ng tra
nsmissio
n a
nd o
ne-stage pla
netary gear tra
nsmissio
n. Z1/ Z2 a
nd Z3/ Z4 are two-stage i
nter
nal meshi
ng tra
nsmissio
n, a
nd Z5, Z6 a
ndz7 co
nstitute pla
netary tra
nsmissio
n mecha
nism. A gear Z1with a
n exte
nsio
n sleeve is i
nstalled o
n the shaft head of the motor. Through the i
nter
nal gear Z2, gear Z3 a
nd i
nter
nal gear Z4, the moveme
nt is tra
nsmitted to the gear Z5. The gear Z5 is the ce
ntral gear(or su
n gear) of the pla
netary gear trai
n, a
nd the
n drives the two pla
netary gears Z6 a
nd the large i
nter
nal gearz7. The pla
netary gear is freely i
nstalled o
n two shaftswhich are fixedly co
n
nectedwith the drive, a
nd awork brake is i
nstalled outside the gear ri
ng of the big i
nter
nal gearz7,which is used to co
ntrol the operatio
n of thewi
nch drum. I
n order to achieve good load shari
ng effect, the floati
ng modewithout redu
nda
nt co
nstrai
nts is adopted i
n the desig
ned load shari
ng mecha
nism. I
n additio
n, the use of modified gear ca
n also obtai
n accurate tra
nsmissio
n ratio, improve the quality of meshi
ng tra
nsmissio
n a
nd beari
ng capacity. This desig
n mai
nly has carried o
n the detailed desig
n to the two-stage i
nter
nal meshi
ng tra
nsmissio
n a
nd the first-class pla
netary gear tra
nsmissio
n, the drum structure, the brake a
nd so o
n. Keywords: dispatchi
ngwi
nch; pla
netary gear; pla
netary tra
nsmissio
n; i
nter
nal meshi
ng tra
nsmissio
n 目录 一、整体方案设计1 1.1产品的名称、用途及主要设计参数7 1.2整体设计方案的确定7 1.3设计方案的改进8 二、牵引钢丝绳直径及卷筒直径的确定9 2.1钢丝绳的选择9 2.1.1计算钢丝绳直径9 2.1.2钢丝绳强度校核: 9 2.2卷筒9 2.2.1卷筒的名义直径9 2.2.2确定卷筒的宽度B 10 2.2.3初选钢丝绳的缠绕层数为: 10 2.2.5确定卷筒直径10 2.2.6卷筒厚度: 10 三、电机的选取: 12 3.1系统的总效率12 3.2绳速的确定12 3.3电机的选型12 四、总传动比的计算及传动比的分配13 4.1总传动比的计算: 13 4.2传动比的分配13 五、两级内齿圈传动设计15 5.1齿轮材料处理工艺及制造工艺的选定15 5.2确定各主要参数15 5.2.1传动比15 5.2.2第一级传动齿轮模数m 15 5.2.3内啮合标准圆柱齿轮传动几何尺寸的计算16 5.2.4齿轮接触疲劳强度计算16 5.2.5齿轮强度校验18 5.3第二级传动齿轮模数m 22 5.3.1内啮合标准圆柱齿轮传动几何尺寸的计算23 5.3.2齿轮接触疲劳强度设计计算23 5.3.3齿轮强度校验26 六、行星轮传动设计30 6.1齿轮材料处理工艺及制造工艺的选定30 6.2确定各主要参数30 6.2.1传动比30 6.2.2行星轮数目30 6.2.3载荷不均衡系数30 6.2.4配齿计算30 6.2.5太阳轮分度圆直径31 6.2.6计算变位系数32 6.3几何尺寸计算35 6.4啮合要素计算36 6.4.1 a—c传动端面重合度36 6.4.2 c—b传动端面重合度36 6.5齿轮强度验算37 6.5.1外啮合37 6.5.2内啮合42 七、主轴的结构设计46 7.1轴的材料的选定46 7.2轴直径的初步估算46 7.3轴的结构设计46 八、行星轴的结构设计和校核61 8.1行星轴61 8.1.1结构设计61 8.1.2行星轴材料61 8.1.3轴的受力分析61 8.1.4按当量弯矩计算轴径62 8.1.5轴的疲劳强度安全因数校核计算62 8.1.6轴的表强度安全因数校核计算63 8.2行星轴校验64 8.2.1轴径64 8.2.2行星轴材料64 8.2.3轴的受力分析64 8.2.4按当量弯矩计算轴径65 8.2.5轴的疲劳强度安全因数校核计算66 8.2.6轴的表强度安全因数校核计算67 九、行星架结构设计69 9.1行星架形式的确定和材料的选定69 9.2行星架的技术要求69 十、轴承及校核71 10.1调心滚子轴承71 10.2深汮球轴承72 十一、联接(普通平键联接) 75 11.1主轴上的平键联接75 11.1.1键的选取75 11.1.2键联接的强度校核75 11.2滚筒和行星架之间的联接76 11.2.1键的选取76 11.2.2键联接的强度校核76 十二、减速器铸造机体结构尺寸77 12.1铸造机体的壁厚77 12.2螺栓直径77 十三、制动器的设计计算78 13.1制动器的作用与要求78 13.1.1制动器的作用78 13.1.2制动器的要求78 13.2制动器的类型比较与选择78 13.2.1制动器的类型78 13.2.2制动器的选择78 13.3外抱闸式制动器结构78 13.4外抱闸式制动器的几何参数计算79 十四、主要零件的技术要求85 14.1对齿轮的要求85 14.1.1齿轮精度85 14.1.2对行星轮制造方面的几点要求85 14.1.3齿轮材料和热处理要求85 十五、维护及修理86 15.1润滑86 15.2维护86 15.3修理86 设计总结87 参考文献88
作品编号:
210344
文件大小:
7.01MB
下载积分:
1000
文件统计:
doc文件4个,dwg文件6个
文件列表
正在加载...请等待或刷新页面...