Cylindrical gear bushing punching and riveting tool

A technology of cylindrical gears and bushings, which is applied in the field of automobile drive axle assembly tooling, and can solve problems such as deformation failure and bushing prolapse
CN113118319APending Publication Date: 2021-07-16DONGFENG DANA AXLE
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
DONGFENG DANA AXLE
Publication Date
2021-07-16

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Abstract

The invention discloses a cylindrical gear bushing punching and riveting tool. The cylindrical gear bushing punching and riveting tool is used for punching and riveting a bushing into a through hole in the center of a cylindrical gear and comprises an upper cover and a base which are fixedly connected with each other, the base is arranged in a shaft hole of the bushing, each of the upper cover and the base is provided with a shaft hole coaxial with the bushing, a push rod is arranged in the shaft holes, the push rod is in clearance fit with the upper cover and the base, the bottom end of the push rod is provided with a first inclined surface, multiple blade mounting grooves are formed in one end, connected with the upper cover, of the base and are circumferentially and uniformly distributed on the base, a blade is arranged in each blade mounting groove, each blade can slide in the radial direction of the base, and the end surface, facing the axis of the base, of each blade is a second inclined surface; and when the push rod moves downwards, the first inclined surface on the push rod is in sliding fit with the second inclined surfaces on the blades. The punching and riveting tool is simple in structure and good in punching and riveting effect, and it is guaranteed that the bushing does not axially move and disengage relative to the inter-bridge cylindrical gear any more.
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Description

technical field

[0001] The invention relates to the technical field of assembly tooling for automobile drive axles, in particular to a punching and riveting tooling for cylindrical gear bushes. Background technique

[0002] Inter-axle cylindrical gears are widely used in the main reducer assembly of medium and heavy-duty vehicles, and are the core power transmission components that drive the medium axle. When the car does not need the inter-axle differential, the inter-axle cylindrical gear is connected to the main shaft of the main reducer of the middle axle through the sliding sleeve of the inter-axle differential lock. Cylindrical gear between bridges - main cone of middle bridge - differential between wheels of middle bridge - half shaft - wheel end. When the car needs the differential speed between the axles, the differential lock between the axles is closed, and the cylindrical gear between the axles is no longer fixed at the same speed as the main shaft. At this time...

Claims

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