煤礦掘進(jìn)工作面JD

1、JD-25絞車一次牽引礦車數(shù)計(jì)算說明一、基本參數(shù)1、掘進(jìn)工作面JD-25型調(diào)度絞車參數(shù)：牽引力18KN、鋼絲繩直徑15.5mm、平均繩速1.10m/s、最大繩速 1.08m/s、最小繩速 0.433m/s、容繩量 400m。2、配用鋼絲繩6X19X15.5參數(shù)：鋼絲繩直徑d= 15.5mm，總斷面積57.27mm2，鋼絲繩單位長(zhǎng)度重量 Pb=0.845kg/m，鋼絲繩公稱抗拉強(qiáng)度170kg/mm2，鋼絲繩破斷拉力總和Q =15200kg。3、U型固定車箱礦車參數(shù)：容積1.1 m3、名義載重量1t；空車自重Q=618kg、單車煤重量Q煤=1000 kg、單車矸重量Q砰石=1700 kg、單車煤矸

2、重量Q煤砰=1350 kg。4、7.5m3V型翻斗式礦車參數(shù)：名義載重量0.7t、最大載重量1.2t、空車自重Q=514kg、單車煤重量 Q煤=700 kg、單車矸重量Q砰石=1190 kg、單車煤矸重量Q煤砰=945kg。二、JD-25型調(diào)度絞車一次牽引礦車數(shù)計(jì)算：JD-25型調(diào)度絞車一次牽引礦車數(shù)主要是根據(jù)鋼絲繩最大拉力確定，對(duì) 鋼絲繩實(shí)際拉力的限制條件主要有三個(gè)：1、安全系數(shù)的限制根據(jù)煤礦安全規(guī)程規(guī)定，鋼絲繩的安全系數(shù)應(yīng)N6.5，鋼絲繩實(shí)際 所受最大拉力應(yīng)小于其破斷拉力總和Qp的6.5倍，應(yīng)為：Fmax=Qp / 6.5 = 15200kg / 6.5=2338kg=22917N。2、絞

3、車牽引力的限制條件JD-25型調(diào)度絞車最大牽引力為F額=18KN=18000N。3、功率的限制條件絞車的實(shí)際功率應(yīng)不大于其額定功率？額即：NP額N= N= FmaV102nX 1.1 P =25KW額V絞車最大繩速，n絞車工作效率，取 85%；P P x 102 x門 則有 F max=Fr25 x 102 x 85%=1791322N1.10 x 1.13、絞車一次牽引礦車數(shù)計(jì)算由上述可知，JD-25型調(diào)度絞車最大鋼絲繩牽引力應(yīng)為Fmax=18000N。則確定JD-25型調(diào)度絞車一次牽引最大礦車數(shù):F Nn (Q +Q) (sinB+fcosB) +P L (sin B+fcos B) X1

4、.1maxr1b2B軌道最大工作坡度，取值范圍020。，可分別驗(yàn)算;L鋼絲繩工作長(zhǎng)度，取300 m； f1礦車阻力系數(shù)，取0.015； f2鋼絲繩阻力系數(shù)，取0.20；Qr為單車煤或矸石或煤矸的重量，可分別驗(yàn)算;n煤或矸石或煤矸的數(shù)量;1.1備用安全系數(shù)。計(jì)算結(jié)果如下:JD-25型調(diào)度絞車一次牽引U型固定車箱礦車（空車）最多數(shù)目計(jì)算表n（Qr+Q）BsinB+f cosBsinB+f2cosB(Qr+Q)(sinB+f cosB)g =1P,L(sinB+fcCosB)g44618010.0150.20090.846317.5203361810.0320.217196.531345.17926

5、61820.0500.235302.156372.7332261830.0670.252407.689400.1731961840.0850.269513.098427.4921661850.1020.286618.350454.6801461860.1190.303723.415481.7301361870.1370.320828.258508.6331261880.1540.337932.850535.3811161890.1710.3541037.157561.96610618100.1880.3711141.149588.3809618110.2060.3871244.793614.6

6、159618120.2230.4041348.057640.6628618130.2400.4201450.911666.5148618140.2560.4361553.323692.1647618150.2730.4521655.262717.6027618160.2900.4681756.697742.8226618170.3070.4841857.596767.8156618180.3230.4991957.930792.5756618190.3400.5152057.668817.0936618200.3560.5302156.778841.362JD-25型調(diào)度絞車一次牽引U型固定車

7、箱礦車（煤車）最多數(shù)目計(jì)算表n(Qr+Q)BsinB+f cosBsinB+f cosB(Qr+Q)(sinB+f cosB)gP, L(sinB+fcosB)g321618010.01520.200z:1237.846b2317.52020161810.0320.217514.5423450500.235791.081372.73312161830.0670.2521067.3804000850.2691343.353427.4928161850.1020.2861618.917454.6807161860.1190.3031893.988

8、481.7306161870.1370.3202168.482508.6336161880.1540.3372442.316535.3815161890.1710.3542715.405561.96651618100.1880.3712987.668588.38041618110.2060.3873259.020614.61541618120.2230.4043529.379640.66241618130.2400.4203798.664666.51431618140.2560.4364066.791692.16431618150.2730.4524333.680717.60231618160

9、.2900.4684599.248742.82231618170.3070.4844863.416767.81531618180.3230.4995126.102792.57521618190.3400.5155387.227817.09321618200.3560.5305646.710841.362JD-25型調(diào)度絞車一次牽引U型固定車箱礦車（煤矸車）最多數(shù)目計(jì)算表n（Qr+Q）8sin8+f cos8sin8+f cos8(Qr+Q)(sinB+f.cosB)gP, L(sinB+fcosB)g291968010.01520.2001v289.296b2w317.52018196810.

10、0320.217625.8463450500.235962.205372.73310196830.0670.2521298.272400.1738196840.0850.2691633.943427.4927196850.1020.2861969.116454.6806196860.1190.3032303.689481.7305196870.1370.3202637.561508.6335196880.1540.3372970.629535.381_196890.1710.3543302.792561.96641968100.1880.3713633.949588.

11、38031968110.2060.3873963.999614.61531968120.2230.4044292.842640.66231968130.2400.4204620.377666.51431968140.2560.4364946.505692.16431968150.2730.4525271.126717.60221968160.2900.4685594.141742.82221968170.3070.4845915.453767.81521968180.3230.4996234.962792.57521968190.3400.5156552.572817.09321968200.

12、3560.5306868.187841.362JD-25型調(diào)度絞車一次牽引U型固定車箱礦車（矸車）最多數(shù)目計(jì)算表n(Qr+Q)8sin8+f cos8sin8+f2cos8(Qr+Q)(sin8+f cos8)gP, L(sin8+fcos8)g272318010.0150.200:1340.746b2317.52016231810.0320.217737.1503450500.2351133.329372.7339231830.0670.2521529.164400.1737231840.0850.2691924.532427.4926231850.1020.286

13、2319.314454.6805231860.1190.3032713.390481.7304231870.1370.3203106.639508.6334231880.1540.3373498.942535.3814231890.1710.3543890.179561.96632318100.1880.3714280.231588.38032318110.2060.3874668.979614.61532318120.2230.4045056.305640.66222318130.2400.4205442.091666.51422318140.2560.4365826.219692.1642

14、2318150.2730.4526208.572717.60222318160.2900.4686589.035742.82222318170.3070.4846967.490767.81522318180.3230.4997343.822792.57522318190.3400.5157717.918817.09322318200.3560.5308089.663841.362坡度（）空車（輛）煤車（輛）煤砰車（輛）砰車（輛）044322927133201816226151311322121094191087516876614765713654812654911544101054311943

15、3129433138432148332157332167322176322186322196222206222n（Qr+Q）BsinB+f cosBsinB+f2cosB(Qr+Q)(sinB+f cosB)gP, L(sinB+fcosB)g45514010.0150.2001I175.558b2317.5203551410.0320.217163.458345.1792851420.0500.235251.308372.7332451430.0670.252339.081400.1732151440.0850.269426.751427.4921851450.1020.286514.291

16、454.6801651460.1190.303601.675481.7301551470.1370.320688.875508.6331351480.1540.337775.865535.3811251490.1710.354862.619561.96611514100.1880.371949.111588.38010514110.2060.3871035.313614.61510514120.2230.4041121.200640.6629514130.2400.4201206.745666.5149514140.2560.4361291.923692.1648514150.2730.452

17、1376.707717.6028514160.2900.4681461.071742.8227514170.3070.4841544.991767.8157514180.3230.4991628.440792.5757514190.3400.5151711.393817.0936514200.3560.5301793.825841.362JD-25型調(diào)度絞車一次牽引7.5m3 V型翻斗式礦車（煤車）最多數(shù)目計(jì)算表n(Qr+Q)BsinB+f cosBsinB+f2cosB(Qr+Q)(sinB+f cosB)g :1PL(sinB+f2cosB)g361214010.0150.200178.4

18、58317.52024121410.0320.217386.0663450500.235593.556372.73314121430.0670.252800.8654000850.2691007.930427.49210121450.1020.2861214.688454.6809121460.1190.3031421.076481.7308121470.1370.3201627.032508.6337121480.1540.3371832.491535.3816121490.1710.3542037.393561.96661214100.1

19、880.3712241.674588.38051214110.2060.3872445.272614.61551214120.2230.4042648.125640.66251214130.2400.4202850.172666.51441214140.2560.4363051.350692.16441214150.2730.4523251.599717.60241214160.2900.4683450.858742.82241214170.3070.4843649.065767.81531214180.3230.4993846.161792.57531214190.3400.5154042.

20、085817.09331214200.3560.5304236.778841.362JD-25型調(diào)度絞車一次牽引7.5皿V型翻斗式礦車（煤肝車）最多數(shù)目計(jì)算表n（Qr+Q）BsinB+f cosBsinB+f2cosB(Qr+Q)(sinB+f cosB)gP, L(sinB+fcosB)g331459010.0150.2001I1_214.473b2317.52022145910.0320.217463.9783450500.235713.342372.73313145930.0670.252962.4894000850.2691211.3

21、43427.4929145950.1020.2861459.827454.6808145960.1190.3031707.867481.7307145970.1370.3201955.387508.6336145980.1540.3372202.311535.3815145990.1710.3542448.564561.96651459100.1880.3712694.071588.38051459110.2060.3872938.758614.61541459120.2230.4043182.549640.66241459130.2400.4203425.371666.51441459140

22、.2560.4363667.150692.16431459150.2730.4523907.811717.60231459160.2900.4684147.283742.82231459170.3070.4844385.491767.81531459180.3230.4994622.363792.57531459190.3400.5154857.827817.09331459200.3560.5305091.811841.362JD-25型調(diào)度絞車一次牽引7.5m3 V型翻斗式礦車（矸車）最多數(shù)目計(jì)算表n(Qr+Q)BsinB+f cosB 1sinB+f cosB 2(Qr+Q)(sinB+f cosB)g1I1_P L(sinB+f cosB)g31170400.0150.200250.488b2317.52020170410.0320.217541.8913450500.235833.129372.73311170430.0670.2521124.113400.1739170440.0850.2691414.755427.4928170450.1020.2861