CN2228025Y

CN2228025Y - Setting device for fixed wheel and axle

Info

Publication number: CN2228025Y
Application number: CN95211435U
Authority: CN
Inventors: 李福春; 崔海清; 崔金华; 孙春娟
Original assignee: 李福春
Priority date: 1995-05-29
Filing date: 1995-05-29
Publication date: 1996-05-29
Anticipated expiration: 2005-05-29

Abstract

The utility model relates to a fixing device for wheels and shafts, comprising an inner cone hole on a wheel body, an inner screw hole at the bigger diameter end of the inner cone hole and an outer cone sleeve installed between the inner cone hole and a shaft. The inner body of the sleeve is a round straight drum whose diameter is longer than that of the shaft, and a longitudinal opening along the entire axial length is arranged on the sleeve; a pressing ring is installed on the end surface of the single side of the big end of the inner cone hole, and at least two bolt holes are arranged on the pressing ring. The utility model has the advantage of convenient disassembly and does not destroy the components of the wheels and the shafts.

Description

A kind of anchor fitting that is used for fixing wheel and axle

The utility model relates to a kind of driving device, particularly a kind of anchor fitting that is used for fixing wheel and axle.

Existing take turns and axle between the much more fixing keys that adopt, jackscrew or the fastening method that the tapered slope on axle and the wheel is fixed with jam nut.Its shortcoming is the installing/dismounting difficulty, and wheel endoporus, axle, key and keyway are easy to wear, and service life is short, maintenance is frequent, especially with key or jackscrew when fastening, makes a wheel and an axle decentraction, produce vibration during rotation, cause consumption of power and noise to increase the life-span of having reduced bearing and equipment.

The purpose of this utility model provides a kind of the overcome wheel of above-mentioned shortcoming and the securing device between the axle.

The purpose of this utility model is to realize by following scheme.

Anchor fitting of the present utility model comprises:

On wheel body, have an internal taper hole, on the wheel body end face of the bigger end of internal taper hole diameter, have at least two tapped bore;

One is installed in the male-tapered sleeve between said internal taper hole and the axle, and the Outer Taper gradient of said sleeve and the internal taper hole gradient on the wheel body adapt, and the internal diameter of each point equates on the sleeve, and sleeve diameter is greater than the diameter of axle.On sleeve, have an elongated opening along its whole axial length;

Be installed in the pressure ring on the end face that has big internal taper hole diameter one end on the wheel body, the endoporus of said pressure ring is greater than the diameter of axle, less than the diameter of the bigger end of internal taper hole, be used for the bolt hole that the internal thread hole with on the wheel body that bolt passes through cooperates having at least two on the pressure ring.

Another feature of the present utility model is to have at least two well-distributed internal thread holes on the end face of the bigger end of sleeve outer diameter.

The utlity model has convenient disassembly, to equipment and the damage-free characteristics of parts.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a longitudinal section of the present utility model.

Fig. 2 is half the lateral plan of size reduction of Fig. 1.

On the wheel body of wheel 1, have an internal taper hole 2, on the wheel body end face of the bigger end of internal taper hole 2 diameters, have at least two internal thread holes 3, one male-tapered sleeve 4 is installed between internal taper hole 2 and the axle (not drawing among the figure), and the Outer Taper gradient of sleeve 4 is identical with the gradient of internal taper hole 2.Its gradient scope is 1: 5-1: 10, be preferably 1: 7.The internal diameter of each point equates on the sleeve, and promptly sleeve inner is a straight barrel.The internal diameter of sleeve is greater than 0.50-1.00 millimeters of the diameters of axle.

Have an elongated opening 5 along its whole axial length on sleeve 4, the width of opening 5 is 5-7% of the diameter of axle.On the end face of the bigger end of sleeve 4 external diameters, have at least two well-distributed internal thread holes 7.

One pressure ring 6 is installed on the end face that has big internal taper hole diameter one end on the wheel body, and the internal diameter of pressure ring 6 is greater than the diameter of axle, less than the diameter of the bigger end of internal taper hole.On pressure ring 6, have at least two bolts hole 8.

Fitting process of the present utility model is, will take turns 1 and insert on the axle, then sleeve 4 is inserted axle and takes turns between 1 the internal taper hole 2, again with overbolt 9 by hole 8 with take turns the internal thread hole of opening on 13 and pressure ring 6 be fixed on an end of sleeve 4.Then, firmly tight a bolt 9, bolt 9 is pressed into sleeve 4 between internal taper hole 2 and the axle 4, bolt 9 is pulled outwardly wheel in other words, and internal taper hole 2 produces slide relative with respect to sleeve 4, and the elongated opening size on the sleeve is dwindled, axle is held tightly, thereby realized the fixing of wheel and axle.When dismounting, unload bolt 9 earlier, take away pressure ring 6, with wooden mallet sleeve is struck down.Perhaps on sleeve, have internal thread hole 7, pulling down pressure ring 6, screw in internal thread hole 7 with bolt sleeve 4 is pulled out.

The of the present utility model wheel can be flat-belt pulley, and pulley conical disk etc. are powered drive wheel similarly.In the utility model scope of disclosure, those skilled in the art can make many variations.

Claims

1, a kind of anchor fitting that is used for fixing wheel and axle is characterized in that said device comprises:

A. on wheel body, have an internal taper hole, on the wheel body end face of the bigger end of internal taper hole diameter, have at least two tapped bore;

B. one be installed in said internal taper hole and the axle between the male-tapered sleeve, the Outer Taper gradient of said sleeve and the internal taper hole gradient on the wheel body adapt, the internal diameter of each point equates on the sleeve, and the cover internal diameter has an elongated opening along its whole axial length greater than the diameter of axle on sleeve;

C. be installed in the pressure ring on the end face that has big internal taper hole diameter one end on the wheel body, the endoporus of said pressure ring is greater than the diameter of axle, less than the diameter of the bigger end of internal taper hole, be used for the bolt hole that the internal thread hole with on the wheel body that bolt passes through cooperates having at least two on the pressure ring.

2, according to the described anchor fitting of claim 1, the gradient that it is characterized in that said internal taper hole and sleeve Outer Taper is 1: 5-1: 10, be preferably 1: 7.

3, according to the described anchor fitting of claim 1, the internal diameter that it is characterized in that said sleeve is greater than 0.50-1.00 millimeters of the diameters of axle.

4, according to claim 1 or 3 described anchor fittings, the width that it is characterized in that the elongated opening on the said sleeve is 5-7% of the diameter of axle.

5,, it is characterized in that having at least two well-distributed internal thread holes on the end face of the bigger end of said sleeve outer diameter according to claim 1 or 3 described anchor fittings.