CN2303762Y

CN2303762Y - Prepositioned spherical worm rolling-wheel supported steering device

Info

Publication number: CN2303762Y
Application number: CN 97233419
Authority: CN
Inventors: 亓立民; 吴兆明; 周福俊
Original assignee: 周福俊
Priority date: 1997-06-19
Filing date: 1997-06-19
Publication date: 1999-01-13
Anticipated expiration: 2007-06-19

Abstract

The utility model relates to a front-located globoid worm rolling-wheel supported steering device, which belongs to a fitting of motor vehicles and particularly belongs to a fitting of tractors. The utility model comprises an outer shell with a base, the base is provided with a front screw hole and two rear screw holes, and the inner part of the outer shell is provided with a right turn globoid worm and a right turn rockshaft which are in mesh with each other. The rockshaft is positioned above the front screw hole, the globoid worm is installed on a steering shaft, and the steering shaft is vertical to the base. The outer shell adopts the form of a steering device of the existing small-four-wheel tractors, and the rockshaft is ensured to be in front of the worm during use, so that the outer shell can adapt to the space design of the existing small-four-wheel tractors, and is convenient to install and use. Therefore, the driving torque of the utility model is enlarged, and the service life is prolonged.

Description

The deflector of forward type Hindley worm roller wheel bearing formula

The utility model is that a kind of forward type Hindley worm roller props up zero formula deflector, belongs to a kind of self-propelled vehicle, particularly tractor part.

Deflector is the critical component in automobile, the trac., driving torque is big, the characteristics of long service life and the deflector of sphere roller wheel bearing structure has, but because the version difference of present small four-wheel tractor, and the deflector of existing Hindley worm roller wheel bearing structure can not be used on this type.

The purpose of this utility model is: design a kind of forward type Hindley worm roller wheel bearing formula deflector that existing small four-wheel tractor uses that is suitable for.

The utility model comprises that it has the shell of base, and screw hole behind a preceding screw hole and two is arranged on the base, and the Slice surface-worm and the dextrorotation rocker shaft that are meshed are arranged in the shell, and rocker shaft be positioned at before the top of screw hole; Hindley worm is installed on the steering shaft, and steering shaft is vertical with base.Shell has wherein adopted the form of existing small four-wheel tractor deflector.The utility model with rocker shaft design in the place ahead of preceding screw hole of base, promptly rocker shaft is positioned at the place ahead of worm screw in use, and makes it can adapt to the spatial design of existing small four-wheel tractor, is convenient to it install and use, can strengthen its driving torque, prolong its service life.According to design of the present utility model, Hindley worm and rocker shaft are made as dextrorotatory form.In addition, design one trimming screw passes on the side cover at rocker shaft rear, and the threaded portion of trimming screw is the bigger reducing bar of point diameter, and has a jump ring that its front end is installed in the groove on the rock wall ax aft end face.This screw is used to adjust the height of steering shaft, makes things convenient for the driver to adjust the driving posture.

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Fig. 1 is the cutaway view of the utility model embodiment;

Fig. 2 is the cutaway drawing of Fig. 1 birds-eye view;

Wherein, 1-steering shaft, 2-shell, 3-Hindley worm, tightening screw behind the 4-, tightening screw before the 5-base, 6-, 7-rocker shaft, 8-jump ring, 9-trimming screw, 10-side cover.

Present embodiment by the shell 2 that has base 5, be installed in the steering shaft l and the rocker shaft 7 that have Hindley worm 3 in the shell 2 and form. screw hole behind a preceding screw hole and two is arranged, tightening screw 6 and back tightening screw 4 before being separately installed with in it on its base 5.In shell 2, steering shaft 1 and base 5 vertical installations, Hindley worm 3 are installed in its outside.Rocker shaft 7 is located at the place ahead of Hindley worm 3, and promptly it is positioned at that base 5 is gone forward the top of screw hole and rocker shaft 7 adopts dextrorotatory form with the engagement of Hindley worm 3.In addition, at the rear of rocker shaft 7, have a trimming screw 9 to pass its side cover 10, the threaded portion of this trimming screw 9 is a reducing bar, and its front end is arranged in the groove on rocker shaft 7 aft end faces, and is located by a jump ring 8.Side cover 10 outsides have a nut and trimming screw 9 to spin.

The utility model is the improvement to original deflector, does not increase other parts, thereby does not increase productive costs, but because it has improved service life, thereby greatly reduce use cost.

Claims

1, a kind of forward type Hindley worm roller props up zero formula deflector, comprise that it has the shell of base (5) (2), screw hole behind a preceding screw hole and two is arranged on the base (5), it is characterized in that: the Slice surface-worm (3) and the dextrorotation rocker shaft (7) that are meshed are arranged in the shell (2), and rocker shaft (7) is positioned at the top of preceding screw hole; Hindley worm (3) is installed on the steering shaft (1), and steering shaft (1) is vertical with base (5).

2, forward type Hindley worm roller according to claim 1 props up zero formula deflector, it is characterized in that: have a trimming screw (9) to pass on the side cover (10) at rocker shaft (7) rear.The threaded portion of trimming screw (9) is the bigger reducing bar of point diameter, and has a jump ring (8) that its front end is installed in the groove on rock wall ax (7) aft end face.