圣霖國際聯接機生產擇優推薦「在線咨詢」

鍵是一種標準件，通常用于聯接軸與軸上旋轉零件與擺動零件，起周向固定零件的作用以傳遞旋轉運動和扭矩，楔鍵還可以起單向軸向固定零件。而導鍵、滑鍵、花鍵還可用作軸上移動的導向裝置。 根據鍵的結構形式，鍵聯接可分為平鍵聯接、半圓鍵聯接、楔鍵聯接和切向鍵聯接等幾類。

The key is a standard part, which is usually used to connect the rotating parts and swing parts of the shaft and the axle to move the fixed parts to transmit rotary motion and torque, and the wedge key can also play a one-way axial fixation part. The guide, slippery key and the spline can also be used as a guiding device for moving on the axis. According to the structure of the key, key joins can be divided into a flat bond, a semicircle bond, a wedge bond and a tangent bond.

楔鍵聯接：鍵的上下兩表面是工作面，鍵的上表面和輪轂鍵槽底面均有1∶100的斜度，裝配后，鍵即楔緊在軸和輪轂的鍵槽里，工作表面產生很大預緊力。

Wedge key connection: the upper and lower two surfaces of the key are the working faces. The upper surface of the key and the bottom of the hub keyway have 1 to 100 slope. After assembly, the key is wedged tightly in the keyway of the shaft and hub, and the working surface has a large pre tightening force.

機用虎鉗的結構及原理。機用虎鉗是機械加工中常用的裝夾機構，其結構如圖1所示。其主要工作原理：轉動方頭帶動絲杠，在螺母（通過緊固螺釘固定在虎鉗體上）的作用下，做螺旋運動的絲杠帶動與之聯接的活動座沿絲杠軸線方向來回移動。

The structure and principle of machine vise. Machine vise is a common clamping mechanism in mechanical processing. Its structure is shown in Figure 1. The main principle: rotation of the lead screw nut in the square, (fixed in the vise body through a fastening screw) under the action of moving spirally driven screw connected with the movable seat to move back and forth along the screw axis.