CN204419849U

CN204419849U - The shockproof bearing of a kind of lathe

Info

Publication number: CN204419849U
Application number: CN201420420836.2U
Authority: CN
Inventors: 江志富
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-29
Filing date: 2014-07-29
Publication date: 2015-06-24
Anticipated expiration: 2024-07-29

Abstract

The shockproof bearing of a kind of lathe, comprise inner sleeve, outer sleeve and can between inside and outside sleeve slideway roll roller, described roller is the double cone column structure of middle evagination, and the slideway between described inner sleeve and outer sleeve is the concave structure of agreeing with roller construction, deduct the structure of retainer, thus more roller can be loaded, thus reduce vibrations that lathe produces in process of production to the impact of bearing life.

Description

The shockproof bearing of a kind of lathe

Technical field

The utility model relates to a kind of bearing, particularly relates to the shockproof bearing of a kind of lathe.

Background technique

The use of rolling bearing on lathe is mainly used in following three positions: main shaft, ball screw and general transmission shaft.Main shaft bearing is as the complete sets of basic equipment part of lathe, and its performance directly has influence on the rotating speed of lathe, rotating accuracy, rigidity, anti-trembling vibration cutting ability, noise, temperature rise and thermal distortion etc., and then has influence on the precision, surface quality etc. of processing accessories.Therefore, high performance lathe must the high performance bearing of adapted.

In actual production process, people mostly select radial direction to bear the larger roller bearing of pressure ratio, but the maximum shortcoming of roller bearing can not bear thrust load exactly, and in the production process of lathe, due to factors such as lathe vibrations, roller bearing is often subject to the effect of continuous print light axial, time one is long, easily make the roller position in bearing that skew occurs even to reverse, impact is greatly produced on the normal work of bearing: as produced noise, affecting machine tool drive, lathe even may be caused to scrap.

The bearing of current normal structure, in order to prevent the spacing change friction mutually of roller, mostly adopt and install a structural frame additional between roller, effectively can prevent the change of the spacing of roller, but the restriction of retainer material, easily in the hot environments such as lathe, there is chemical corrosion with bearing itself, have impact on the life-span of bearing greatly.

Model utility content

In order to solve the defect of existing roller bearing, the utility model provides a kind of lathe shockproof bearing, and concrete scheme is as follows:

The shockproof bearing of a kind of lathe, comprise inner sleeve, outer sleeve and can between inside and outside sleeve slideway roll roller, described roller is the double cone column structure of middle evagination, and the slideway between described inner sleeve and outer sleeve is the concave structure of agreeing with roller construction.

Roller between described inside and outside sleeve adopts without retainer structural design, can load many rollers, thus improve its load carrying capacity than the bearing of normal structure.The slideway of described inner sleeve adopts laciniation, thus plays the effect spacing to roller.

The beneficial effects of the utility model are:

Due to the structural particularity of roller of the present utility model, also can bear thrust load when bearing larger radial load simultaneously, because it is without retainer structural design, more roller can be loaded than the bearing of normal structure, improve its load-carrying ability further.In actual production, there are irregular vibrations for a long time in lathe, often have influence on the location of roller in bearing, thus the structure of retainer is damaged, make roller that skew occur and even reverse, cause the reduction of bearing life, the location of the utility model roller adopts the concave structure that inside and outside sleeve agrees with roller construction, deduct retainer, added the number of roller, while the vibrations that reduction roller is subject to, also add the life-span of bearing.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is cross-sectional view of the present utility model.

Fig. 3 is outer sleeve structure schematic diagram of the present utility model.

Fig. 4 is inner sleeve structure schematic diagram of the present utility model.

Figure number and title: 1, inner sleeve, 2, outer sleeve, 3, roller.

Embodiment

Now by reference to the accompanying drawings, working principle of the present utility model and using method are further illustrated

The shockproof bearing of a kind of lathe, comprise inner sleeve 1, outer sleeve 2 and can between inside and outside sleeve slideway roll roller 3, described roller 3 is the double cone column structure of middle evagination, and the slideway between described inner sleeve 1 and outer sleeve 2 is the concave structure of agreeing with roller 3 structure.At work, except bearing except radial load, the sectional area due to roller two ends is less than the sectional area in the middle of it to described roller 3, and entirety is a gradual change cone structure, can also bear larger thrust load.

Roller between described inside and outside sleeve 1 and 2 adopts without retainer structural design, can load many rollers, thus improve its load carrying capacity than the bearing of normal structure.Because the roller loaded is more than the bearing of normal structure, the vibrations that lathe produces evenly are shared by more roller, reduce single roller and are subject to larger irregular vibrations and deflect, be out of shape.And because the utility model adopts the spacing roller of saw tooth structure on inner sleeve slideway, there is no retainer, thus avoid the accelerated corrosion of the Bearing inner roller surface caused due to the restriction of retainer material.

The above is preferred embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in patent claim of the present utility model.

Claims

1. the shockproof bearing of lathe, comprise inner sleeve, outer sleeve and can between inside and outside sleeve slideway roll roller, it is characterized in that: described roller is the double cone column structure of middle evagination, and the slideway between described inner sleeve and outer sleeve is the concave structure of agreeing with roller construction.

2. the shockproof bearing of lathe as claimed in claim 1, is characterized in that: the roller between inside and outside sleeve adopts without retainer structural design, the slideway of described inner sleeve adopts laciniation.