What is the tolerance range of precision screws?
What is the tolerance range of precision screws?
The purpose of Guangdong Yueluo Hardware Industry Co., Ltd. is to provide a bayonet which is a T-shaped cylindrical pin with a misaligned through hole at the head, and a bayonet spring which is a ring-shaped spring steel wire whose ends are staggered. The retaining ring is clamped by the bayonet pin to fix the stop sleeve and the pin shaft together. A hydraulic excavator pin stopper with high disassembly and assembly efficiency and no need for a wrench. The technical solution of Guangdong Yueluo Hardware Industry Co., Ltd. is such that it includes a latch, a stop sleeve, a pin, a bayonet, and a circlip. The staggered end is clamped into the misaligned through hole of the plug, and screwed on the bottom of the stopper sleeve to fix the stopper sleeve and the pin shaft together. The latch is composed of a bayonet pin and a circlip, the circlip is screwed around the through hole of the bayonet pin to the root of the bayonet pin, and the stopper sleeve is tightly wrapped around the pin shaft, and the circlip is tightly against the bayonet pin. The head of the bayonet pin has two T-shaped cylindrical pins with staggered through holes, and the circlip is an annular spring steel wire whose ends are staggered. By adopting the pin shaft stopping method of the above technical scheme, it is extremely convenient and quick to disassemble and assemble the pin shaft. The bolt of Guangdong Yueluo Hardware Industry Co., Ltd. is only composed of a T-shaped cylindrical pin with two staggered through holes in the head and a ring-shaped spring steel wire with staggered ends. The structure is simple, convenient to manufacture, low cost and obvious. It is an excavator pin stop method with high disassembly and assembly efficiency, no need for a wrench and low manufacturing cost.
To sum up, the chip nut provided by Guangdong Yueluo Hardware Industry Co., Ltd. has a circle of serrated teeth 1011 protruding outwardly on the edge of the welding end face 101. During welding, the excess solder overflows and flows to the periphery. In the gap between the serrated teeth 1011, on the one hand, the solder on the welding end face 101 can be made uniform, so as to ensure that the welded chip nut is neat and beautiful; The welding area is increased, and the firmness and reliability of the welding are improved.
Knurled copper nut, the specification is M5X8X12, the outer circle is 8.0MM, and the height is 12MM. Material: C3604 (ROHS PASS) brass. The thread still guarantees 6H accuracy. This knurled copper nut is used in power tools. Unlike other knurled copper nuts, the diamond pattern of this knurled copper nut is located in the middle of the product, and the diamond-shaped mesh knurled wheel edge The large outer circular step surface is rolled out of diamond-shaped flowers.
The motor bearing retaining ring is used to fix the axial position of the bearing. The structure of the bearing retaining ring 1 in the prior art is shown in FIG. 1 , which is a ring-shaped sheet-like structure with a gap, the inner diameter of which is smaller than the inner diameter of the connected bearing, and the outer side 11 of the ring is a continuous arc shape. The inner side of the ring is provided with a groove 12, 13 of the same size on both sides of the midpoint of the ring, and the width of the groove is equal to the distance from the groove to the gap of the ring. When the axial locking force (impact) of the bearing retaining ring of this structure is greater than 6.5N, serious deformation will occur or even the retaining ring will be separated from the shaft shoulder. In order to solve this problem, when the axial locking force is greater than 6.5N, the prior art generally adopts a two-ring combined structure of steel wire ring + bearing retaining ring, and its installation state is shown in Figure 2, as shown in Figure 2, l It is a bearing retaining ring in the prior art, 3 is a locking nut, 4 is a fan blade insert, 5 is a bearing, 6 is a shaft, and 7 is a wire ring. However, such a structure is costly and troublesome to assemble, especially if the bearing retaining ring is not placed in place during assembly, the bearing retaining ring is at risk of being crushed.
The above content is uploaded by Yueluo or the Internet. If there is any copyright issue, please contact [email protected].
