CN211808842U

CN211808842U - Wheel-edge round nut anti-loosening structure of 6-ton loader

Info

Publication number: CN211808842U
Application number: CN201922349594.8U
Authority: CN
Inventors: 蔡军; 任高奇; 阙智坚; 卜习燕
Original assignee: Lonking Fujian Bridge Box Co Ltd
Current assignee: Lonking Fujian Bridge Box Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-10-30
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a 6 ton loader wheel edge round nut anti-loosening structure, which comprises an inner gear ring, a screw, a round nut, a sun gear, a snap spring, a half shaft, a support shaft and a bearing; the supporting shaft is used as a fixing piece, the inner gear ring is installed on the supporting shaft, the left end of the inner gear ring is provided with a round nut, the right end of the inner gear ring is provided with a bearing, and the screw is directly attached to the inner gear ring; the internal spline of the sun gear is matched with the half shaft and is limited by a clamp spring at the left end of the sun gear; the screw is directly locked on the inner gear ring, so that when the axial force of the inner gear ring is transmitted to the round nut, the axial force is not transmitted to the screw, the screw only bears the tangential force of the round nut, and the screw is not loosened due to smaller tangential force; the end face excircle of the round nut is provided with a round nut arc notch for preventing the nut from loosening and withdrawing. The utility model has the characteristics of preparation and maintenance cost are low, safe and reliable, fault rate are low, long service life.

Description

Wheel-edge round nut anti-loosening structure of 6-ton loader

Technical Field

The utility model relates to a loader transaxle wheel limit structure, concretely relates to 6 ton loader wheel limit round nut anti loosening structure.

Background

At present, the wheel reduction gear of a drive axle of a domestic mainstream loader adopts an NGW structure for transmitting large torque, wherein an internal spline of an internal gear is matched with an external spline of a support shaft, one end of the internal gear is attached to a bearing, and the other end of the internal gear is locked on the support shaft by a round nut. In the prior art, a wheel-side speed reducer of a drive axle of a 6-ton loader is provided, and an internal gear locking structure of the wheel-side speed reducer is that a circular nut is locked and then locked to an internal gear ring by two screws for locking. The wheel edge round nut anti-loose structure has the following defects: firstly, as the round nut is locked on the inner gear ring by the screw, when the axial force of the inner gear ring is transmitted to the round nut, the axial force is also transmitted to the screw, and the round nut is easy to loosen during operation to withdraw, thereby causing the damage fault of the bearing and the gear; secondly, because the round nut of the structure is provided with the counter bore of the machining screw, the machining process is longer and the cost is high.

Disclosure of Invention

The utility model aims at overcoming above-mentioned defect, providing a simple structure, preparation and maintenance cost low, long service life's 6 ton loader wheel limit round nut anti loosening structure to solve following two point problems that exist among the prior art: firstly, as the round nut is locked on the inner gear ring by the screw in the prior art, when the axial force of the inner gear ring is transmitted to the round nut, the axial force is also transmitted to the screw, and the round nut is easy to loosen during operation to withdraw, thereby causing the damage failure of the bearing and the gear; secondly, because the round nut in the prior art is provided with the counter bore of the machining screw, the machining process is longer and the cost is high.

In order to achieve the purpose, the utility model relates to a 6 ton loader wheel limit round nut anti loosening structure, which comprises an inner gear ring, a screw, a round nut, a sun gear, a snap spring, a half shaft, a supporting shaft and a bearing; the supporting shaft is used as a fixing piece, the inner gear ring is installed on the supporting shaft, the left end of the inner gear ring is provided with a round nut, the right end of the inner gear ring is provided with a bearing, and the screw is directly attached to the inner gear ring; the internal spline of the sun gear is matched with the half shaft and is limited by a clamp spring at the left end of the sun gear; the screw is directly locked on the inner gear ring, so that when the axial force of the inner gear ring is transmitted to the round nut, the axial force is not transmitted to the screw, the screw only bears the tangential force of the round nut, and the screw is not loosened due to smaller tangential force; the end face excircle of the round nut is provided with a round nut arc notch for preventing the nut from loosening and withdrawing.

The wheel-side round nut anti-loosening structure of the 6-ton loader with the structure has the following technical characteristics and beneficial effects:

firstly, a screw of a 6-ton loader wheel-side round nut anti-loose structure is directly locked on an inner gear ring, when the axial force of the inner gear ring is transmitted to a round nut, the axial force is not transmitted to the screw, the screw only receives the tangential force of the round nut, and the screw is ensured not to be loosened due to the small tangential force, so that the safety and reliability are ensured, the failure rate is reduced, and the service life of equipment is prolonged.

And secondly, redesigning and processing the round nut, adopting forging molding, arranging a counter bore on the end face of the round nut and arranging an arc notch on the outer circle, and having simple processing technology and low manufacturing and maintenance cost.

Drawings

Fig. 1 is the utility model discloses a 6 ton loader wheel limit round nut anti loosening structure's main sectional structure sketch map.

Fig. 2 is a view of the structure of the round nut of fig. 1.

Reference numerals: the device comprises an inner gear ring 1, a screw 2, a round nut 3, a sun gear 4, a clamp spring 5, a half shaft 6, a round nut arc notch 7, a support shaft 8 and a bearing 9.

Detailed Description

The following provides a detailed description of the anti-loosening structure for the wheel rim round nut of the 6-ton loader according to the present invention with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the wheel-side round nut anti-loosening structure of the 6-ton loader of the present invention comprises an inner gear ring 1, a screw 2, a round nut 3, a sun gear 4, a snap spring 5, a half shaft 6, a support shaft 8 and a bearing 9; the supporting shaft 8 is used as a fixing piece, the inner gear ring 1 is installed on the supporting shaft 8, the round nut 3 is installed at the left end of the inner gear ring 1, the bearing 9 is installed at the right end of the inner gear ring 1, and the screw 2 is directly attached to the inner gear ring 1; the internal spline of the sun gear 4 is matched with the half shaft 6 and is limited by the clamp spring 5 at the left end of the sun gear 4; the screw 2 is directly locked on the inner gear ring 1, so that when the axial force of the inner gear ring 1 is transmitted to the round nut 3, the axial force is not transmitted to the screw 2, the screw 2 only receives the tangential force of the round nut 3, and the screw 2 cannot be loosened due to the fact that the tangential force is small; as shown in figure 2, the round nut 3 is formed by forging, the circular arc notch 7 of the round nut is arranged on the excircle of the end face of the round nut and used for preventing the nut 3 from loosening and withdrawing, the machining process is simple, the cost is low, and the failure rate and the cost of a product are finally reduced.

Claims

1. A6-ton loader wheel-side round nut anti-loose structure comprises an inner gear ring, a screw, a round nut, a sun gear, a clamp spring, a half shaft, a support shaft and a bearing; the supporting shaft is used as a fixing piece, the inner gear ring is installed on the supporting shaft, the left end of the inner gear ring is provided with a round nut, the right end of the inner gear ring is provided with a bearing, and the screw is directly attached to the inner gear ring; the internal spline of the sun gear is matched with the half shaft and is limited by a clamp spring at the left end of the sun gear; the method is characterized in that: the screw is directly locked on the inner gear ring; the end face excircle of the round nut is provided with a round nut arc notch for preventing the nut from loosening and withdrawing.