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30For citation: DING Junwu, FAN Yu, XU Qiao. Design of hydraulic system of a small hydraulic carrier // URL: http://rectors.altstu.rU/ru/periodical/archiv/2020/1/articles/4_2.pdf DOI: 10.25712/ASTU.2410-485X.2020.01.010
UDK 359.4
Design of hydraulic system of a small hydraulic carrier
DING Junwu1,2, FAN Yu1,2, XU Qiao*1,2
1 School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan, 430073, China; 2 Hubei Digital Textile Equipment Key Laboratory, Wuhan ,430073, China E-mail: [email protected]; [email protected]
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u, mwMrn, mm, min^,
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^^^JI^M. m^mfa-mm
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1'2020
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Сетевое издание Совета ректоров вузов Большого Алтая
^mrnmimmrn, ^тэдадшда. МЯЯ^:
1 - MJM; 2, 4 - 3 - 5 - 6 - 7 - M
Figure 2. is based on the hydraulic schematic diagram of a hydraulic vehicle 1 - Hydraulic cylinder; 2 & 4 - One-way valve; 3 - Motor; 5 - Two-position two-way directional valve; 6 - Throttle valve; 7 - Hydraulic oil tank
m fà&^rnm&mmfèïïïï [4]. MK&^m^m immrnimmm
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tarn, ^mm&ftwiï, ^tra, 4
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t 1 mm±m, ^rnm^r^n, m&ftM&T2 mm, mm,
m 6 ^m, mumrn, mi^^mmrn «ÈT 2
91 ВЫПУСК
1'2020
P=6.5Mpa Fmax=5KN ^^AtTfM: Lmax=120 mm
31.
Table 1. Hydraulic cylinder load and working pressure
0.5
0.5-1
1-2
2-3
3-5
X^H^/Mpa
0.1-1
1.5-2
2.5-3
3-4
4-5
He Fmax=5kn , ^mmxîm^ 1.5 - 2Mpa, ^mmm^x^m ^ P=1.6Mpa.
m^mm^^M d d.
4F
D= l— =
\nP
4X5000 'nxl.ôxlO6
= 50mm,
d = 0.75D = 0.75 X 50mm = 37.5mm, D = 50mm, mmftïMM d = 40
'mm-
(1) (2)
^ = nD^ = = 1962.5.
4
4
(3)
A =
q^tn = 2.sxLmin = 2500mm2.
V
min
1
m/min
(4)
Ä^: Qmin = Ä'M:^ Vmin = mm^^^M^
[5] ^ D m 63 H^f^XÄ. ^ D=63mmft. m d=50mm.
(2) mm^te^^^^^
*
Сетевое издание Совета ректоров вузов Большого Алтая
'mm-
m 3
Figure 3. Working stroke and block size of hydraulic cylinder
120 mm, 120,
H = 50mm B B=(0.6-1)D.
W Bmax=63mm
^min=37-8mm •
rn^fc^ftM B=55mm.
(20-30)D, ^ffif^i^^T^P
l = B + L = 120 + 55 = 175mm,
ЙФ в l ШАПЖ
[6], тшФ^ъ 250
(6)
mm-
3.....
[7],
ШЖ CP-700 Ш, К^Ъ 370 X 180 X 180, ШЙ*Ъ 900cc, ЙЙ 13fc5. ЙЙШЖ ШЛ^ШШЛЙ 0 - 2Мра, ^ШШЛЙ 2 - 70Мра, ШМХ^ШЛ,
i20mm, бзтт, щът&тт
V1 = 120 х 10-2 х х (63 х 10-2)2 = 0.374L
яШшшШЙЙ:
(7)
к2 = 10 х х (20 х 10-2)2 = 03,
(8)
Наука и образование Большого Алтая» 93 ВЫПУСК 1'2020
V = v1 + v2 = 0.67 L, (9)
4 mxm
mimm, MMfflr, rap^tH^
[1] ©ww. [J]. «^m, 20i9(i8):i3i-i32.
[2] [J]. tHM, 2006(08):98-i00.
[3] ««i^if^ffi» (4 #) 2004.
[4] MM^. tt^K^Jm^tt, 2005.
[5] ««i^ifffl®» (i, 2 #) 2000.
[6] M^^^m^tt, i993.
[7] »M. ffi^MH.^«^ [J]. 20i7, 38(03):62+20.
References
[1] Xiaoguang L, Shanshan D. Research on the design of hydraulic system of the carrier [J]. Hubei Agricultural Mechanization, 20i9(i8):i3i-i32.
[2] Luxia Z., Jun X. The design of new hydraulic cylinder impact mechanism and hydraulic system [J]. China mining industry, 2006(08):98-i00.
[3] Wenbing W. «Mechanical Design Manual», Mechanical Industry Press, 2004.
[4] Xingyuan Z., Shunqi M. «Mechanical manufacturing technology». Beijing Water Conservancy Press, 2005.
[5] Daxian Z. «Mechanical design atlas» Chemical Industry Press, 2000.
[6] Xianyan L. «Hydraulic transmission and control». Chongqing University Press, i993.
[7] Xiaoyong S. Transformation of hydraulic system of pusher. [J]. Neijiang science and technology, 20i7, 38(03):62+20.
