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江西同欣机械制造股份有限公司

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Jiangxi Tongxin Machinery Manufacturing Co., Ltd.


Address: First Road, Lulin Industrial Zone, Guangfeng District, Shangrao City, Jiangxi Province

Phone: 135-7635-1398

Contact: Mr. Liu

Postcode: 334600

xintezhongliu.cn Website: xintezhongliu.cn

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  • Jiangxi Tongxin Machinery Manufacturing Co., Ltd.

    Jiangxi Tongxin Machinery Manufacturing Co., Ltd. wishes: new and old customers and all staff, happy Mid-Autumn Festival National Day, and the moon and Mid-Autumn Festival will be better, and National Day will be more festive, greetings and blessings to accompany you, I wish you a happy spirit at every happy event , The people reunite a successful career, happiness and well-being, good health, hard work, you will always win, wish you a happy Mid-Autumn Festival! Jiangxi Tongxin Machinery Manufacturing Co., Ltd.
    Release time: 2017-09-30 Clicks: 596

  • Camshaft production technology

    The camshaft is one of the key parts of the engine. The hardness of the peach tip of the camshaft and the depth of the white layer are the key technical indicators that determine the service life of the camshaft and the efficiency of the engine. On the premise of ensuring that the cam has a sufficiently high hardness and a relatively deep white mouth layer, it should also be considered that the journal does not have higher carbides, so that it has better cutting performance. The main producer of camshafts at home and abroad
    Release time: 2017-02-16 Clicks: 463

  • Camshaft modification

    In order to improve the power of the engine, some modification shops have modified the camshaft of the engine, of which the replacement of high-angle camshaft camshaft (Hi-CAM) is a common modification method. This modification operation is not complicated, but because some modification personnel do not understand the working angle and working principle of the cam on the camshaft, the effect of the modification is not obvious or even leads to
    Release time: 2017-02-16 Clicks: 465

  • Camshaft failure

    Common failures of camshafts include abnormal wear, abnormal sounds, and breaks. The abnormal sounds and breaks often show symptoms of abnormal wear before they occur. (1) The camshaft is located almost at the end of the engine lubrication system, so the lubrication condition is not optimistic. If the oil pump has insufficient oil supply pressure due to long use time, etc., or the oil passage is blocked, the oil cannot reach the camshaft
    Release time: 2017-02-16 Clicks: 452

  • Camshaft drive

    Common transmission methods between camshaft and crankshaft include gear transmission, chain transmission and toothed belt transmission. Most of the transmission between the lower camshaft and the middle camshaft and the crankshaft use cylindrical timing gears. Generally, only a pair of gears are required from the crankshaft to the camshaft. If the transmission gear diameter is too large, an additional middle Idler. In order to stabilize the mesh and reduce work
    Release time: 2017-02-16 Clicks: 457

  • Camshaft position

    There are three types of camshafts: lower, middle, and upper. The camshaft of the lower-mounted valve mechanism is located in the crankcase, the camshaft of the central-mounted valve mechanism is located at the upper part of the body, and the camshaft of the upper-type valve mechanism is located on the cylinder head. The engines of most production cars are now equipped with overhead camshafts. The main advantages of overhead camshaft structure are fewer moving parts and transmission chain
    Release time: 2017-02-16 Clicks: 425

  • Camshaft structure

    The main body of the camshaft is a cylindrical rod body approximately the same length as the cylinder block. There are several cams on the top for driving the valves. The camshaft is supported in the camshaft bearing hole through the camshaft journal, so the number of camshaft journals is an important factor affecting the rigidity of the camshaft support. If the camshaft stiffness is insufficient, bending deformation will occur during work, affecting the gas distribution
    Release time: 2017-02-16 Clicks: 284

  • Camshaft working conditions and materials

    Cam bearings are subject to periodic shock loads. The contact stress between the cam and the tappet is very large, and the relative sliding speed is also high, so the working surface of the cam is relatively worn. In view of this situation, in addition to the higher dimensional accuracy, smaller surface roughness and sufficient rigidity, the camshaft journal and cam working surface should also have higher wear resistance and good lubrication. Convex
    Release time: 2017-02-16 Clicks: 288

  • Camshaft overview, role, classification and maintenance knowledge

    Overview: The main body of the camshaft is a cylindrical rod with the same length as the cylinder group. There are several cams on the top for driving the valves. One end of the camshaft is a bearing support point, and the other end is connected to the driving wheel. The side of the cam is egg-shaped. The purpose of its design is to ensure sufficient intake and exhaust of the cylinder, specifically to complete the opening of the valve in the shortest possible time.
    Release time: 2017-02-16 Clicks: 312

  • Development status of camshaft grinding technology at home and abroad

    CBN grinding wheel grinding has significant advantages such as high efficiency, high precision, and low cost. It is an inevitable trend in the development of camshaft grinding processing technology. Based on the results of years of experimental research and related technical literature, the article points out the main constraints in the process of bringing the CBN grinding technology of camshafts to the market in China, and proposes positive suggestions to
    Release time: 2016-10-17 Clicks: 311

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