帶傳動(dòng)設(shè)計(jì)實(shí)例

1、帶傳動(dòng)設(shè)計(jì)實(shí)例Design example of belt drive帶式運(yùn)輸機(jī)如圖所示Belt conveyer is shown in Fig已知 Known data： F5000N、v=0.4m/s、D 300mm、載荷平穩(wěn) Steady load、兩班制 Two-shift operation。設(shè)計(jì)步驟 Design procedure： 電機(jī)選擇Select motor總傳動(dòng)比及其分配Determine and distribute speed ratio運(yùn)動(dòng)學(xué)計(jì)算Kinematics calculations一、傳動(dòng)裝置總體設(shè)計(jì) Total design of driving d

2、evicev二、傳動(dòng)件設(shè)計(jì) Design of power transmission parts （帶 Belt、齒輪 Gear、鏈 Chain）v 三、裝配圖設(shè)計(jì) Assembly drawing 軸 Shaft、 軸承 Bearing、 鍵Keyv四、零件圖設(shè)計(jì) Parts drawingv五、說(shuō)明書(shū) Instrument book總體設(shè)計(jì) Total design類(lèi)型Type： Y系列Series Y容量Power： 工作機(jī)要求電機(jī)功率： Power required by service machine P電P工/總2/0.83 2.41（KW） 一 、選電機(jī)select motorP

3、工Fv/100050000.4/10002 （KW）總 V帶軸承齒輪軸承鏈軸承卷筒 V帶軸承3齒輪鏈卷筒 0.960.9930.970.960.96 0.83v查手冊(cè)，取電機(jī)額定功率 By handbook and rated power of the motor is determined.vPed3KW2.41KW轉(zhuǎn)速 Speed： 可選同步轉(zhuǎn)速Standard synchro-speed ： 750 rpm 1000 rpm 1500 rpm 3000 rpm電機(jī)大、價(jià)高 適中 傳動(dòng)裝置體積大Larger driving advice sizeLarger motor size and

4、higher motor costReasonable 選擇額定轉(zhuǎn)速Rated speed is： n電960rpm4. 結(jié)果Results： Y132S6 （ Ped3KW、n電960rpm）二、總傳動(dòng)比及分配Determine and distribute speed ratio rpm5 .253003.144 . 0100060Dv100060n 65.375 .25960nn卷卷電總i 總傳動(dòng)比 Speed ratio i總2. 分配 Distribute speed ratio636242為各部分尺寸相稱(chēng)：齒輪鏈帶齒輪鏈帶鏈齒輪帶總iiiiiiiiiiFor size coordi

5、nation in several stages of drives14. 45 . 36 . 265.375 . 36 . 2鏈帶總齒輪鏈帶iiiiii三、運(yùn)動(dòng)學(xué)計(jì)算Kinematics calculations （各軸P、n、T） P1 P電2.41KW P2 P1 V帶2.410.962.31KW P3 P2 軸承齒輪2.310.990.97 2.22KW P4 P3 軸承 鏈2.220.990.961. 2.11KW 2. n1n電960rpm n2n1/i V帶=960/2.6=369.2rpm n3n2/i 齒= 369.2/4.14=89.2rpm n4n3/i 鏈=89.2/3

6、.5=25.5rpm3.790.22NM25.52.11109.55nP109.55T237.68NM89.22.22109.55nP109.55TNM75. 95369.22.31109.55nP109.55T23.97NM9602.41109.55nP109.55T34434333333223231131帶傳動(dòng)設(shè)計(jì)Design of the belt drive已知Known data ： P12.41KW、i2.6（n1960rpm、n2369.2rpm）、載荷平穩(wěn) Steady load、 兩班制 Two-shift operation 一、帶型號(hào) Section of VbeltP4

7、0 圖48 ： P1=2.41KWPdKAP1 1.12.412.65KW n1960rpm （P39表44：KA1.1）A型二、帶輪計(jì)算直徑 Diameters of pulley（D1、D2）vP40 表45或表46 ：v A型：Dmin75mmv 取D1 100mm 則 D2 D1 i1002.6 =260mm （圓整 Round，取尾數(shù)為0或5） 校驗(yàn)傳動(dòng)比誤差 Check the error of speed ratio)DD(%50100%512實(shí)際實(shí)際iiiiiiii校驗(yàn)速度 Check peripheral velocity111,/5/255/02. 510006096010

8、014. 3100060DsmsmsmnD則增大若合適then increase D1 Reasonable三、確定長(zhǎng)度Ld和中心距a Length of belt and centre-to-centre distance Owing to： 0.55（D1D2）+ha2 （D1D2） 初取 a0 D1D2 100+260360mmv2.mm1250L3438P13033604)100260()260100(236024)()(22d2212210，取表根據(jù)mmaDDDDaLmm335mm5 .3332130312503602LL0d0取aaa3. 求實(shí)際中心距a The final cen

9、tre-to-centre distance 4. 校驗(yàn)包角1 Check the arc of contact）可以增大中心距（如果合適aa,1201202 .1516033500126018060DD180o1ooooo12o1)12103Z.93. 010445P92. 09444P1.2T8444PKW115. 09602 . 10001. 0nT0001. 0KW95. 074429 . 293. 092. 0)115. 095. 0(65. 2)(10000（?。罕恚罕恚罕恚罕鞮LdKKPPPKKPPPZ四、確定帶根數(shù)Z Numbers of belt)12103Z.93.0104

10、45P92.09444P1.2T8444PKW115.09602.10001.0nT0001.0KW95.074429.293.092.0)115.095.0(65.2)(10000（?。罕恚罕恚罕恚罕鞮LdKKPPPKKPPPZ)12103Z.93.010445P92.09444P1.2T8444PKW115.09602.10001.0nT0001.0KW95.074429.293.092.0)115.095.0(65.2)(10000（?。罕恚罕恚罕恚罕鞮LdKKPPPKKPPPZ)12103Z.93.010445P92.09444P1.2T8444PKW115.09602.10001.0nT0001.0KW95.074429.293.092.0)115.095.0(65.2)(10000（?。罕恚罕恚罕恚罕鞮LdKKPPPKKPPPZ)12103Z.93. 010445P92. 09444P1.2T8444PKW115. 09602 . 10001. 0nT0001. 0KW95. 074429 . 293. 092. 0)115. 095. 0(65. 2)(10000（?。罕恚罕恚罕恚罕鞮LdKKPPPKKPPPZN8952151