Service HotlineThe technical solution adopted by Guangdong Yueluo Hardware Industry Co., Ltd. to solve its technical problems is a special pull rivet for railway freight cars, which has a pull rivet body and a collar. The rod body is composed of polished rod section, locking ring groove section and tail thread section from top to bottom. Protectors are provided at the tail thread section to prevent rust and bad teeth in the tail thread section during use. , collision deformation, etc. Specifically, the tail thread segment has an external thread or an internal thread, and the protective member is a nut or a bolt.
GB97.1.CATPart GB97.1.SLDPRT Nominal size d d1 d2 h 1000 weight (kg) ≈ nominal diameter (NND) inner diameter (SD1) outer diameter (SD2) thickness (SD) — 5 5.3 10 1 0.443 Spring washer spring Wasket 6 6.4 12 1.6 1.0518 8.4 16 1.6 1.828 10 10.5 20 2 3.57 14 15 28 2.5 8.611 16 17 30 3 11.29 20 21 37 37.16 24 25 44 4 32.31 30 31 56 4 53.61 36 37 66 5 92.03
Sprinkle the excess flat washer 6 on the positioning plate II3-1 on the flat washer positioning plate 3, and shake the flat washer positioning plate 3 by hand. After a short time, the flat washer 6 will be positioned and arranged on the upper positioning plate II3-1. In the flat washer hole 3-7, since the width of the opening groove 113-32 of the baffle plate II3-3 is smaller than the diameter of the flat washer hole 3-7, and the thickness of the upper positioning plate II3-1 is designed according to the thickness of the flat washer 6, each Only one flat washer 6 can be accommodated in the flat washer holes 3-7 of each upper positioning plate II3-1, and then use a brush to remove the excess flat washer
Welding stud is also called welding screw, which belongs to a kind of fastener connected with high strength and rigidity. Welding stud is the abbreviation of cylindrical head welding stud for arc stud welding. Industrial plant construction, highways, railways, bridges, towers, automobiles, energy, transportation facilities, airports, stations, power stations, pipeline supports, lifting machinery and other types of steel structures and other projects.
At present, due to the installation position determined in the design process of the traditional thrust cylinder in China, the corresponding position of the piston rod and the clamping arm is fixed, and it is impossible to ensure that the workpiece can be clamped while the workpiece is thin. It is not conducive to the use of such products when clamping. Secondly, when the workpiece is assembled or welded, it not only needs to be tightened in a certain direction, but also needs to be positioned, so as to ensure the accuracy required for processing. When a workpiece is fixed in this way, it must be realized by adding a mechanism, which will increase the complexity of the system and bring inconvenience to installation and maintenance.
We have many years of experience in the production and sales of screws, nuts, flat washers, etc. The main products are: inner multi-washers, copper high-footed wide-brimmed eyelet button rivets, GB869 aluminum countersunk head rivets, K-plate screws and other products, we can provide you with suitable products. Your fastener solution.
