SECTION IV – ASSEMBLY 4-压装过盈配合零件

4.Pressing Interference Fit Parts

压装过盈配合零件

CAUTION: DURING ASSEMBLY OF SOME UNITS, CLOSE TOLERANCE FITS REQUIRE THAT A PART WILL EITHER HAVE TO BE COLD SOAKED OR HEATED IN ORDER TO PERMIT ASSEMBLY WITHOUT DAMAGE TO PARTS.

注意：某些部件的组装过程中，因公差要求精密，需对零件进行冷浸或加热处理，以确保组装时不损伤零件。

A.Cold Soaking Loose Tolerance Fit Parts

冷浸处理松动的公差配合零件

(1) Cold soak part in liquid nitrogen (Federal Specification BB-N-411) (SECTION VII) immediately prior to installation.

安装前立即将零件浸入液氮（联邦规范BB-N-411）（第七节）中冷浸处理。

(2) Install part as specified in applicable manual.

按适用手册规定安装零件。

(3) Allow joined parts to warm to room temperature before continuing with assembly procedures.

待连接零件升温至室温后继续后续组装工序。

B.Heating Close Tolerance Fit Parts

热处理精密配合零件

(1) Heat part as specified in applicable manual prior to installation.

安装前按适用手册规定对零件进行加热。

(2) Install part as specified in applicable manual.

按适用手册规定安装零件。

(3) Allow joined parts to cool to room temperature before continuing with assembly procedures.

待连接零件冷却至室温后再继续组装工序。

C.Press Fitting Assembly Parts Using an Arbor Press

使用压力机压装组件

CAUTION: REFER TO APPLICABLE MANUAL FOR PROPER TOOLING TO BE USED TO PREVENT DAMAGE TO PARTS.

注意：请参照适用手册选用正确工具，避免损坏零件。

(1) Position parts to be joined, along with proper tooling, onto base of arbor press.

将待连接的零件与专用工具置于压力机工作台。

(2) Align parts and carefully apply pressure to tooling to start mating process. When alignment is assured, press part to positional requirements specified in applicable manual.

对齐零件后，轻压工具启动配合过程。确认对齐后，按适用手册要求压紧至定位要求。

D.Force Forming Gearshaft Assembly Retainer Rings

齿轮轴组件保持环的强制成型

(1) Assemble gearshaft assembly (typical) in accordance with applicable manual for unit in work.

根据设备操作手册，将齿轮轴组件（典型）装配到正在运行的部件上

(2) Position gearshaft assembly on suitable swaging tool base.

将齿轮轴组组件于适用的挤压工具基座上。

(3) Install suitable swaging tool over shaft of gearshaft assembly against retainer ring.

将适配挤压工具安装于齿轮轴组件轴体，使其抵住保持环。

(4) Using an arbor press, apply pressure to swaging tool as specified in applicable manual, to form retainer ring.

使用压力机，按适用手册规定对挤压工具施加压力，以成型保持环。