What Is The Main Types And Applications Of Threaded Connections For Outdoor Amusement Park Equipment Ride?
The main types of threaded connections are bolted connection, stud connection, screw connection and set screw connection. Please check form 2-10 for their structure, main dimensional relationships, features and applications.
shows: the structure, main dimensional relationship, characteristics and application of threaded connection
| Type | structure | main dimensional relationship | characteristics and application |
| bolt connection | Normal bolt
Reaming hole bolts |
Thread remaining length:
①l1≥（0.3~0.5）d l1≥0.75d l1≥d ①Normal bolt connection Static load l1≥(0.3~0.5)d Variable load l1≥0.75d Impact and bending load l1≥d ②l1a≈（0.2～0.3）d e=d+(3~6)mm ②Connection of reaming hole bolts l1is as small as possible Thread extension length: a≈(0.2～0.3)d Distance from bolt axis to edge line: e=d+(3~6)mm |
No need to cut threads on the connected parts, so it will not limited by the material of the connected parts which will be widely used in the amusement ride with simple structure , convenient assemble and disassembly .
It will be used in through-holes and assembled from both sides of the connection Application range:amusement park、Family entertainment center、game center、shopping mall |
| double stud connection | H：H≈d
H≈(1.25~1.5)d H≈（1.5～2.5)d H1≈H+(2~2.5)P H2 =H1 +(0.5 ~1)d l1、a、e Depth for screw-in the seat Steel or bronze H≈d Cast iron H≈(1.25~1.5)d Aluminum alloy H≈(1.5～2.5)d Depth for threaded hole:H1≈H+(2~2.5)P Depth for drill hole:H2 =H1 +(0.5 ~1)d The values of l1、a、e will be the same as bolted connection |
The double-ended stud being screwed into the screw hole of one of the connected parts which can not be connect by bolts due to structural limitations (such as one of the connected parts is too thick) or where a compact structure is desired | |
| 螺钉联
接screw connection |
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| Set screw connection | The end of the nut will have a smooth exposed surface without nut which the weight is light. The application is similar to the double-ended stud, but it will easily damage the screw hole when being frequent disassembly, so it is not suitable for frequent disassembly. Screw the fastening screw into a spare part’s thread hole and hold other spare parts’s surface by its end part or put it into the relative pit to fix the relative position of two spare parts, it can transmit small forces and torques . |
