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One type of fastener
The fastener 12 typically comprises Parts:
1, ring: for the shaft mounted in grooves or holes slot machines, equipment, play stop moving parts on the shaft or around the hole effect.
2, pin: the main parts for positioning, and some are also available for connecting components, the fixed part, or the locking power transmitted by other fasteners.
3, wood screws: the machine is similar to the screw, but the screw threads on the dedicated wood screws rib, can be screwed directly into the wood element (or part) in a band for the through hole metal (or non-metallic) part and a fastening member together with the wood. This connection also belongs detachable connection.
4, rivet: the class of the fastener head and a shank formed of two parts, for fastening parts (or components) is connected with two through holes, making a whole. This form of connection is called a rivet connection, referred to as caulking. It is a non-detachable connection. Because the two parts are connected together to make the separate parts must be broken rivet.
5, washer: oblate shape is a ring-type fasteners. Disposed between the bolts, screws or nuts of the connecting surface of the part supporting surface plays the parts to be connected increases the contact surface area, reducing the pressure per unit area and protecting the surface of the part to be connected is not damaged; another elastic washer, also plays a role to prevent the nut loose back.
6, and the connecting sub-assembly: supply assembly refers to a combination of a type fasteners, as will be some kind of machine screws (or bolts, screws self-powered) and flat washer (spring washer or locking washer) combination supply; refers to a proprietary sub connector bolts, nuts and washers supply a combination type fasteners, such as high strength steel hexagon bolting.
7, self-tapping screw: similar machine screws, but the screw threads on a dedicated tapping screw thread. Means for fastening two metal thin, makingA whole, the member needs a previously prepared hole, since such a screw has a high hardness, can be screwed directly into the aperture member in the internally threaded member formed response. This connection also form part of a detachable connection.
8, studs: stud and light energy (or no stud) composed of a heterogeneous fasteners, by welding to he fixedly attached to a part (or member) above, and then to the other parts connect.
9, screws: two part fasteners composed of a class, to be fitted with a nut and the screw head (cylinder with external thread) for connecting the two fastening with through holes parts. This connection type called bolt connection. As the nut is unscrewed from the bolt, so that there can be two separate parts, it belongs detachably bolted connection.
10, stud: no head, only both ends of a thread take-type fasteners. When connected, one end of the part to be screwed into the internally threaded bore in the other end through the through-hole with a part, and then screw on the nut, even if the two parts fastened as one piece. This form of connection is called stud connector, detachable connection also belongs. The main part is connected to the larger one of thickness, requires compact, or because frequent disassembly, should not be used in case of bolt connection.
11 nut: with an internally threaded bore, is substantially flat general shape of hexagonal column, cylindrical or square also Chengbian flat cylindrical, with bolts, machine screws or studs for fastening connecting the two parts, making it a whole.
Special Category
of the nut
(1) A high strength self-locking nut
High strength, reliability side a self-locking nut classification, having. Mainly the introduction of European technology as a prerequisite for road construction machinery, mining machinery, vibrating machinery and equipment, the current domestic production of such products manufacturers very little.
(2) self-locking nuts nylon
Nylon is a new self-locking nut locking fastener high vibration, can be applied to a temperature of -50 ~ 100 ℃ variety of mechanical, electrical products in. Currently, aerospace, aviation, tanks, mining machinery, motor transport machinery, agricultural machinery, textile machinery, electrical products and a variety of mechanical demand for nylon self-locking nut surge,This is because its vibration-resistant locking performance is much higher than other types of locking devices, and shudder life even several times higher.
12, screw: a class of the fastener is a screw head and two parts by applications can be divided into three categories: machine screws, set screws and special screws. The main parts of a machine screws for tightening the set screw hole, and a secure connection between the parts with through holes is not required with the nut (which is called connection form a screw connection, also a detachable connection; may be cooperate with the nut, for fastening between the two parts are connected with through holes.) is mainly set screw fixing the relative position between the two parts. Special purpose screws and the like for example eye bolts with lifting parts.