1、 附录 Hyundai Motor on the steering control of the request is lightweight, safe, reliable, and should have sufficient life. In order to meet these requirements, the design of the steering gear should have a reasonable transmission ratio characteristics, the correct gap eating together, a higher transm
2、ission efficiency, sufficient rigidity and strength. If the steering gear in the design is reasonable, then the product is good and bad parts of the key issues of manufacturing and assembly. How to control the quality of the product? The key problem is that a reasonable detection methods, the key to
3、 strictly control the passing rate of time, such products will be able to guarantee the quality of parts and components. First of all, the quality of shifting ASSY, should control the assembly and to ensure that turning the steering shaft torque and rotational axis and the transmission gap between c
4、omponents. Followed by testing the performance of steering gear, steering gear must also be adopted by all types of test-bed to verify the established angle transmission ratio, transmission efficiency, rotational torque, rigid. In addition to examination other than the above-mentioned steering perfo
5、rmance, but also in the pilot stage of its life nuclear reliability and life expectancy that is static torsion test: a thin red hammer, hit test, fatigue life test. To determine whether the quality of the product in hand national standards. Noise from the steering angle repair cream, which is also a
6、 test method to detect and can learn from the J class machinery manufacturing industry in Chinain the past only means to recognize the importance of detection, and the lack oflack of testing and testing of the poor law awareness. So have some of the parts is a qualified products l materials, and ass
7、embly of products from the pilot test proved to be defective, or: The test can verify the quality of products and design for the steering gear (1) the accuracy of parts of the foot only, finish second, two-phase - the location of the elite Measuring the content of L steering shaft loaded journal bea
8、rings Department feet inch accuracy and smoothness, anti-worm or worm-inch accuracy, smoothness and surface hardness and magnetic for testing； steering vertical axis arm journal dimensional accuracy and smoothness, the worm wheel roller bearing of the journal center hole distance, wheel bearing and
9、the journalhole angle from the Chinese side, the block size, finish and degree of asymmetry； circulating ball tooth-type radial fan, big-law length, journal hardness, the magnetic； browser to Min Xuan cochlear aperture wheel size precision, smoothness, tooth surface roughness, intermediate thick tee
10、th, tooth, tooth degree of asymmetry； ball rolling circle diameter, smooth, cylindrical roller Roaddegree of accuracy and bias, raceway adjacent pitch error, cumulative error section of grass lines and sub-rack section from Rolling Road Center, rack section Road center line and the roll of injustice
11、: line degrees； carburizing layer thickness, hardness； magnetic flaw detection； shift steering shaft shell aperture, roughness, different degree of heart； shift towards vertical axis aperture arm flying finish, different degree of heart； chaos and steering shaft steering arm hole down the center dis
12、tance, steering shaft-hole axes and steering arm hole down the center line of the non-verticality (2) parts of cleanliness. Detection of the site is turning - browser shell surface and the surface parts. Detection method is to use cleaning fluid to clean parts, and then the cleaning fluid with impur
13、ities, and vacuum membrane leaching； further 120 weeks of petrol industrial solvents the membrane will be washed with impurities. To be volatile after the membrane cleaning fluid, together with the impurities from weighing, with the magnet cellophane packets are sorted in the iron impurities, said t
14、he weight of a scrap-iron. The iron filings and then 40 times on the microscope with a disability in most dogs measured particle size (length X width). (3) assembly of the leakage. Does not allow any leakage of the phenomenon of steering. Because of internal lubricants in the steering gear is used t
15、o turn parts lubricated friction pair, and if as a result of damage caused by leaking seals, lubrication will be affected, resulting in increased friction and wear parts and reduce the life span of steering gear； transmission efficiency at the same time will lower. The use of conventional vibration
16、and temperature +40 C under the conditions of inspection, the shell and shell cap shaft oil seal joints as well as whether the spill, and water to observe whether there are leakages. (4) after a good tune steering assembly should check the technical requirements flexible and comfortable when turning
17、 the steering wheel, there is no axial gap I turn the steering wheel of the total value of the number required to turn around a few cars in line with the original request. Steering gear shift, also known as machine, machine direction, which is steering the most important parts. Its role is to: incre
18、ase the spread to turn steering wheel and transmission mechanism to change the direction of power transfer. Hydraulic Steering Hydraulic steering vehicles are widely used in marine hydraulic steering and rudder. Drivers can be used through its ability to manipulate smaller shift power to achieve gre
19、ater control and performance of safe, reliable, flexible manipulation, light. The manipulation of steering is hydraulic, that is in the steering column and steering wheel there is no mechanical connection between the steering gear is between the fuel tank and steering hydraulic pipes or hoses link.
20、When turning the steering wheel, steering wheel rotation in accordance with the relative proportion of transport fuel, the fuel tank directly into the corresponding control side, while the other side of the oil back to tank. BZZ steering is a switch-type full-hydraulic steering valve with the follow
21、ing characteristics: the elimination of mechanical linkage device, the host can reduce costs, provide a reliable, lightweight structures, manipulation of a flexible lightweight, safe, reliable, and can be very small continuous torque stepless control of rotation, provided to the control loop, as wel
22、l as a wide range of host size choice, able to shift and a variety of pumps and hydraulic supply system. Steering by the structure can be divided into many types. History, there have been many forms of steering, there is currently more commonly used rack and pinion, worm means crank pins, recycling
23、the ball - rack fan gear type, recycling the ball crank pins means, such as worm-type wheel. The second, fourth, respectively, is the first, the third form of the deformation, and the worm wheel is even more rare type. If the form in accordance with assistance, but also can be divided into mechanica
24、l (no help), and power-style (with help) two types of power steering which can be divided into pressure and motivation, hydraulic-power, electric power-type, electro-hydraulic power types of blocks. 1) It is a rack and pinion of steering one of the most common. The basic structure is a pair of mutua
25、lly meshing rack and pinion. Pinion steering drive shaft rotates, rack linear motion would be done. In some cases, directly driven by the rack cross-bar, you can make of steering wheel shift. So, this is one of the most simple steering. Its advantage is simple structure, low-cost, steering sensitivity, small size, can be directly cross-link. In widely used vehicle. It is a worm for the active parts, crank pin for the steering gear follower. Worm has a trapezoidal thread, referring to a finger-shaped pin with tapered bearings in the crank bearings, the crank shaft
