A connecting structure of a continuous press steel belt driving roller shaft and an end plate

Abstract

The utility model discloses a continuous press steel band drive roller axle and end plate's connecting structure, including drive roller axle and end plate, its drive roller axle's both ends adopt interference fit mode and hot jacket assembly technology and install on end plate. The utility model makes end plate material produce elastic deformation, and the powerful radial pressure that forms, relies on the friction between drive roller axle and end plate hole contact surface and transmits greater torque and bears greater axial force, and stress distribution is relatively even, and forms the continuous compression stress in interference fit area, so that drive roller axle and end plate connection intensity and reliability are higher than welding structure.

Description

Technical Field

[0001] This utility model relates to the field of continuous press technology in artificial board production lines, and in particular to a connection structure between the steel belt drive roller shaft and the end plate of a continuous press. Background Technology

[0002] Traditional continuous presses for engineered wood products (including but not limited to particleboard, fiberboard, and plywood) typically use welding, casting, or tensioning sleeve structures to connect the steel belt drive roller shaft and end plate. However, after long-term operation, due to the continuous alternating stress between the shaft and end plate, fatigue failure defects inevitably occur at the connection point, such as weld cracking, cast steel component cracking, and tensioning sleeve loosening. These defects severely affect the continuous operation of the continuous press production line. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a connection structure between the steel belt drive roller shaft and the end plate of a continuous press, in order to solve the problems existing in the prior art.

[0004] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0005] A connection structure between a continuous press steel strip drive roller shaft and an end plate includes a drive roller shaft and an end plate, characterized in that: the two ends of the drive roller shaft are installed on the end plate by an interference fit and a heat fitting process.

[0006] In a preferred embodiment of the present invention, interference fit ends are provided at both ends of the drive roller shaft, and roller shaft mounting holes are provided on the end plate. The interference fit ends and the roller shaft mounting holes of the end plate are assembled together by interference fit and heat fitting process.

[0007] By employing the above-mentioned technical solution, this invention causes elastic deformation of the end plate material, generating strong radial pressure. This pressure is transmitted through friction between the drive roller shaft and the end plate hole contact surface to withstand greater torque and axial force. The stress distribution is relatively uniform, forming continuous compressive stress in the interference fit area. This results in higher connection strength and reliability between the drive roller shaft and the end plate compared to welded structures. Since there is no material removal or structural alteration during the interference fit of the drive roller shaft, it can transmit greater torque and withstand greater axial force, making it more suitable for the high-speed, high-precision operating conditions required in continuous presses. The implementation of this utility model enables the continuous press steel belt drive roller shaft to avoid fatigue cracking caused by welds or heat-affected zones in traditional roller shaft and end plate welded structures, welding failure caused by welding defects, and brittle fracture caused by heat-affected zone embrittlement after long-term operation. It also avoids the amplification of casting defects in cast steel parts (such as porosity, sand inclusions, sand holes, cracks, shrinkage cavities, etc.) due to repeated alternating stress during long-term use, which would render these defects unusable. Furthermore, it avoids the phenomenon of shaft and end plate free rotation caused by thermal expansion and contraction due to temperature changes in the working environment of the steel belt drive roller. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the connection structure between the steel belt drive roller shaft and the end plate of the continuous press of this utility model. Detailed Implementation

[0009] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0010] See Figure 1 The figure shows a connection structure between a continuous press steel strip drive roller shaft and an end plate, including a drive roller shaft 100 and end plates 200a and 200b. The drive roller shaft 100 has interference fit ends 100a and 100b at both ends. The end plates 200a and 200b have roller shaft mounting holes 210a and 210b. The interference fit ends 100a and 100b are assembled with the roller shaft mounting holes 210a and 210b of the end plates 200a and 200b by an interference fit and a heat fitting process.

Claims

1. A connection structure between a continuous press steel strip drive roller shaft and an end plate, comprising a drive roller shaft and an end plate, characterized in that: The two ends of the drive roller shaft are mounted on the end plate using an interference fit and a heat-fitting process.

2. The connection structure between the steel strip drive roller shaft and the end plate of a continuous press according to claim 1, characterized in that: The drive roller shaft has interference fit ends at both ends, and the end plate has roller shaft mounting holes. The interference fit ends and the roller shaft mounting holes on the end plate are assembled together by interference fit and heat fitting process.

Images