Why motorcycle drive train with sprocket chain instead of gears
1链轮链条是非共轭啮合，这就使得链传动的加工、安装精度比齿轮传动低得多 2链传动可以满足大中心距的要求，如果用齿轮传动的话可能会涉及到轮系 3与齿轮传动相比，链传动较为轻便 4与齿轮传动相比，链传动有较好的缓冲吸振性能
Category: Chains and sprockets
How to reduce the number of gears and racks in the mechanical transmission
Gap is necessary because the rack and pinion have manufacturing errors and installation errors, high-speed movement may also have thermal expansion, multi-stage linkage to reduce the gap can only start from improving the accuracy of gear movement and positioning and installation accuracy, only one level can be considered floating installation.
How to design the steering clearance of rack and pinion steering?
如何把转向间隙设计出来，我认为转向间隙影响因素比较复杂，万向节的选型，零件加工误差，安装误差，转向系刚度，所以我觉得在实物造出来之前难以去估算它能有多少。就算设计好了零件的公差，最终加工出来的零件也很难达到要求，还得靠手动修改，只能希望是尽可能地紧一些，安装的时候螺栓都拧紧一些，如果能尽可能减少万…
Purpose of sprocket hardening and the necessity of sprocket hardening
链轮淬火是有些零件（包括链轮在内）在工作时在受扭转和弯曲等交变负荷、冲击负荷的作用下，它的表面层承受着比心部更高的应力。 链轮淬火的必要性 在受摩擦的场合，表面层还不断地被磨损，因此对一些零件表面层提出高强度、高硬度、高耐磨性和高疲劳极限等要求，只有表面强化才能满足上述要求。由于表面淬火具有变形小、…
The difference between high frequency quenching and medium frequency quenching
中频淬火：淬硬层较深(3~5mm)，适用于承受扭曲、压力负荷的零件，如曲轴、大齿轮、磨床主轴等(所用材料为45号钢、40Cr、9Mn2V和球墨 高频的淬火，可以短时间的表层淬硬!晶体组织很细!结构变形小 中频表面应力比高频的要小50HZ叫工频，加热深度5-10 1000-10000HZ叫中频。“高频淬火”与“中频淬火”在原理上是一样的，所以在中…
Drive sprockets are selected after scientific calculations
传动链轮选择要经过科学计算 链传动速度（对应链轮的传动比），链条的拉力或提升力（对应工件的重量，链排数），涨紧方式（对应链条的长度），防护罩壳（保护工作时的安全），安装和拆卸（是否方便客户维修或更换）注意：（1）链传动中，节距P越大，链的尺寸、重量和承载能力就越大，但是链节距p越大，链的多边形效应就会…
Method of design and processing of chain wheel
链轮设计与加工 1、链轮设计：对于节距12.7-38.1标准链条的链轮各厂家己采用 标准滚刀在滚齿机上生产。加工时，用户只需提供链轮齿数、节距和滚子直径即可生产。链轮设计按GBl244-85设计。非标准链轮在用户提供必要数据的基础上，要做如下计算：分度圆直径：d分=P/sin180度/Z=P·K， P-节距，K-齿数系数可查表。 齿沟圆弧半…
Analysis of the versatility of the sprocket and the performance characteristics of the sprocket
生活离不开链轮那么我们对他的理解又有多少呢，现在我们就大致的认识一下它的性能吧。 首先是链轮材料的选用；不同型号的大链轮和小链轮都采用优质碳素结构钢进行冲压成型。 再者链轮的加工和处理工艺；它一般是采用先进的铣齿加工工艺，这样的加工使齿形更精确。加工之后链轮整体进行了调质热处理，经过热处理，它的分子…
Analysis of the main conventional heat treatment methods for sprockets
1）、整体调质处理、对齿槽表面感应淬火，回火处理； 2）、表面渗碳、淬火或回火处理。 而非钢制链轮和一些非标链轮则采用其他的一些材料的处理方式，链轮常用材料、热处理工艺要求应根据客户的要求来进行处理。 例如材质是15、20号钢，对于齿坯较小，齿数小于或等于25有冲击载荷的链轮，应对其进行渗碳淬火，回火，齿面硬…
How to determine the sprocket of chain-driven roller conveyor?
一般先确定滚筒直径，安装间距，根据货物尺寸确定扭矩 1.先选减速电机，确定扭矩转速，减速比等参数，主动轮被动轮选择一样的，减速全交给减速电机； 2.根据载荷链条速度选择链条规格； 3.根据链轮电机位置选择链轮大小，考虑因素有：链条规格，安装空间，链轮包角等，一般选择17-21齿足够了。齿数少链轮小，多边形效应导…
Why don't bicycles use gearing?
The advantages of chain drive are: 1, good fault tolerance, low requirements for assembly accuracy, allowing the existence of a small relative error before and after the sprocket; high transmission efficiency, without the need for high-precision machining can reach more than 0.95, while the two-stage gear drive is generally about 0.8. The advantage of gear transmission is: can use closed structure to realize maintenance-free, better withstand the harsh environment of sun and rain. Early in the development of bicycles, engineering lions considered shaft drives. First of all, the cost. In those days since...
Why don't you use gears for the transfer case, but use sprockets and chains?
1、Chain sprockets are standard parts, which can reduce the design and processing costs. 2、If only one gear is used to drive the output shaft rotation will be reversed, it is inevitable to require an idler in the middle, one more idler and one more set of bearings, the reliability and maintenance become worse, and the weight becomes bigger. Chain does not exist this problem.
Common failures of chain sprockets and troubleshooting methods:
Common faults and solutions of chain sprocket: 1. The front chain of the chain sprocket jerks because the chain is too loose, the load is too large, or there are one or more links that are not flexible. The solution is to install chain tensioning device or adjustable center distance and reduce the load if possible. 2. The tension of the chain sprocket is related to the sagging distance of the loose side of the chain. For horizontal and inclined transmission with adjustable center distance, the droop of the loose side of the chain should be 2% left stone of the center distance. For centerline vertical transmission or subject to vibration load,...
Analysis of common problems when machining shafts for non-standard sprockets
(1) The combined force of the radial cutting force generated during cutting and the radial component force of clamping will cause the workpiece to bend and cause vibration when the workpiece rotates, thus affecting the machining accuracy and surface quality. (2) When the workpiece rotates at high speed, the centrifugal force aggravates the bending and vibration of the workpiece. (3) Due to the self-weight deformation of the workpiece and aggravate the self-vibration of the workpiece, affecting the machining accuracy and surface quality. (4) The steel tempering treatment causes bending and deformation of the blank, which seriously affects the turning process in the subsequent sequence and requires...
The structural analysis of the chain wheel is mainly a combination of spoke plate type and integral type
Sprocket products are most suitable for application in a range of fields including: First, applied in the speed change system, commonly found in mechanized vehicles and mechanical equipment. The application in this field is mainly to play the drive, second, other aspects related to speed, such as industrial gearboxes, vehicle wheel drive system and so on. Almost in so use sprocket products in the system also need to use different types of gear products, multiple mechanical equipment, accessories to optimize the use of collocation in order to get the most...
Bevel gear drive. Bevel gearing, also with cylindrical teeth
Bevel Gear Transmission. Bevel gear transmission, also has the characteristics of cylindrical gear transmission. Features: transmission power range, high efficiency, compact waiting point. As can be seen from the figure, the bevel gear transmission is different from the plane mechanism of cylindrical gear transmission, but the main question mechanism, is used to transfer the movement and power between the two intersections. Its wheel teeth are distributed on the truncated cone, and the tooth shape gradually becomes smaller from the big end to the small end. For the convenience of calculation and measurement, the parameters of the large end of the bevel gear are usually taken as...
Selection of oil supply in transmission
Selection of oil supply quantity in gear transmission 1. There are many concepts in various countries regarding the selection of oil supply quantity in gear transmission. Experience value, experience calculation formula and conditional calculation formula are used in parallel. It is not difficult to find that different oil supply concepts, on the same operating conditions of the gear drive rules of oil supply is not the same. Therefore, the influence on the smoothness and cooling effect of the gear transmission installation (e.g. anti-glueing ability, anti-pitting ability, vibration, noise and transmission of...
What equipment is needed to process sprockets and gears
Sprocket and gear processing equipment needed 1.General ordinary small lathe, general accuracy, you can also choose a good bit of second-hand lathe, car external dimensions, such as the requirements of the bore lined to the size of the drawings, you need to buy holes with a stop gauge, so that the processing of the bore can ensure that the size of the mismatch 2.General ordinary small planer, the creation of a keyway 3.Hobbing machine, (gear insertion machine does not require) 4.Desktop small drilling machine to drill the tightening of the screw holes 5.Welding machine. Some pieces of larger and lap need to be welded after processing, saving material 6. homemade blackening furnace a...