Talk about the combination of machine base sliding wooden box design
, Sliding wood, sleepers under static load. When the static load when lifting into a dynamic load, if the lifting is a very slow constant speed, or even a very small increase in speed, then can be considered dynamic load and static load equal to that, G = G = lifting any significant static acceleration, then moving Mino load should be multiplied by the static load dynamic load factor, = 1 + ÷ that is, G = G static dynamic = M (I + ÷) yG move - packing a load of boxes bearing dynamic load kY The total mass of kga - the process of lifting the maximum acceleration m / s an acceleration due to gravity 9.8ra / s lifting process can not be completely uniform, the design and generally mouth = lm / s. Lifting ends of rope around the base at the bottom rung, initially, the first two trees outside the measured slip force generated by elastic deformation, rung by squeezing the rope deflection due to take 2t | | L ! I wide 1_f = VII - / a, / 2II 2 chassis of the point irregular moving machine tools and Ran billion j technology LI-I ▲-I, HLL__jR marrow Ⅲ moment diagram in Figure 3 does not slip and slip angle surgery two and sometimes inconsistent, so the middle no contact with wire rope sliding technique, do not support the formation of anti-ship force, so the middle from power slide technique. After the base off the ground, each machine connected to the gravity points through sleepers pass. Middle skid 10,11,14,
Moncler sito ufficiale,15 point force,
ugg boots, so that both ends of the crossbar by bolts to the drop-down (such as hard magic technique described f low will pull down a small bolt washer nest), so rung down deformation. Wood sliding contact with the middle rope to form a support reaction force, the connection point of the force balance. Box off the ground the moment, most point 9,12,13,16 force, outside the crossbar, and two sliding wood damage, most likely, but is close to the ground, the speed is zero, the deformation is negligible moment . 5 skid surface calculation and set out to determine the number of roots in general, more than the number of base slip Mugen. Can increase the carrying capacity, but too many roots, will create difficulties for the machine fixed, but also a waste of technical material. Determine the number of slip Mugen generally, according to the roar packing size width and weight of the machine set. Our years of practice to _ t 2m in width, the machine with less weight 3t 3 ~ 4, 10t 2m less than the width of the root with 4-7. Best slip equal to the distance between the surgery, such as to facilitate the machine fixed, or not equidistant. Skid height should be rice and so on. But in order to increase the capacity of local bending, sliding ill patients can be thrown inch width fine wood section 6 to determine the height and width, number of roots in the slippery wooden determined, according to the size of the machine base plan after the design calculations derived. For example, t set the machine weighs 8f, the focus in the mid-point,
moncler torino, lifting the maximum possible acceleration. Is lm / s. If the skid is 4, the fulcrum distance of 303: m,. And each is 50m. Can be obtained: G = M (1 +.) = 834kN1-8 point force is Pt10.8kN, each supporting point reaction force for 10. SkN, fine wood produced by Om moments shown in Figure 3. . 1ir ~ = 10.8kN × 50 ~ m = 540kN · Cm skid generally rectangular cross-section, the flexural modulus. ;. Beam intensity according to the formula. =! ≤ [. ] =- Devices, the allowable strength [. ] Generally the technique of wood bending strength of ~, we generally use the orange leaves northeast, the bending strength of 10.72kN/em. . [D) = 10.72 × self = 1,34 kN, cmII == 408c in accordance with national regulations, the small diameter logs to 18c or more, calculated according to first determine the specifications of stock lumber, wood can be thrown as far as possible use for the benefit 17cm , the sliding operation of the width of 6 == Pi = 8,87 cm consider skid join M18 bolts at the required link, hand drill 620mm hole may be drilled side, not the highest intensity of the Department of heart wood, and other flaws such as impact, therefore, appropriate to relax, so the choice of 5-12cm,
moncler outlet online, saddle guaranteed reliability. If the machine center of gravity offset one side, sliding on the wood for the rejection of the force size is inconsistent, the resulting moment is not the same, the calculation should take the maximum bending moment value. Surgery due to sliding bearing support sleepers, smaller by the moment. The main consideration inertia force generated by transport and subversive moment (when the train brakes the size of the machine inertia force generated by gravity with the machine rather), so the sleeper may be appropriate to the width of 6 larger, will help the machine fixed. As with the Northeast larch, fixed t0f following machine, the width of 6 or more desirable 18cm, height take 6cm, to good effect. If you are shipping, subversion torque is the main, should be correspondingly increased or additional auxiliary tendons fixed. In recent years, we made use of the combination of spy bed designed packaging symbol achieved good results. References (omitted) 1 91 2 Adams, ■ ■.
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