CN201582307U - Novel high-rotary speed cross roller bearing retainer - Google Patents

Abstract

The utility model belongs to the field of a mechanical bearing, in particular to a novel high-rotary speed cross roller bearing retainer. Pocket holes of the retainer are in equidistant square shape, the length of the retainer is 1.05 times of the diagonal length of a roller, and the width is 1.03 times of the diameter of the roller. The novel high-rotary speed cross roller bearing retainer greatly improves the stability and the working rotary speed on the basis of ensuring the service life and the load bearing capacity of bearing products.

Description

A kind of novel retainer of high speed crossed roller bearing

Affiliated technical field

The utility model belongs to the mechanical bearing field, is specifically related to a kind of novel retainer of high speed crossed roller bearing.

Background technique

Crossed roller bearing belongs to a kind of can bearing than big radial load can bear the bearing of larger axis to load and tilting moment again, has bigger rigidity of support and higher rotating accuracy.Rolling element is a cylindrical roller, installs by cross arrangement in 1: 1, adopts nylon split retainer structure mostly, also can not adopt retainer (full roller is installed).Because of its compact structure, function admirable is widely used in fields such as handling machinery, excavation machinery, constructional engineering machinery.But when this class bearing is used to be installed in the big machinery main-axis end as radial support and thrust function, rolling element in high rotation speed operation process since the influence in nylon split retainer gap often break away from raceway and overturn, cause bearing normally to rotate, greatly reduce the working life and the stability of bearing.This phenomenon often occurs, and perplexs domestic and international mechanical industry for a long time.Therefore, be badly in need of model utility, develop a kind of brand-new crossed roller bearing retainer and solve this technical barrier.

The model utility content

Because the crossed roller bearing size generally strengthens, in conjunction with the structural feature of intersection roller, we on original retainer architecture basics, courageously propose a kind of brand-new crossed roller bearing punching press one retainer by long technology exploration.

The technical solution of the utility model is: a kind of novel retainer of high speed crossed roller bearing, its pocket hole are equidistant square, and length is 1.05 times of roller catercorner length, and width is 1.03 times of roller diameter.The square hole form is adopted in retainer pocket hole, has reduced difficulty of processing on the one hand; On the other hand, because retainer is based on the rolling element guiding, structure is comparatively compact, cooperate by above-mentioned retainer pocket interporal lacuna, effect is better, can realize the roller running steadily, has avoided effectively because the rolling element turning problem that the structure narrow limitation of conventional construction intersection roller cage causes.Improved the stability of bearing operation.

The beneficial effects of the utility model are: because conventional cross roller bearing rolling element and retainer fail to reach best mated condition, cause this class bearing rotating speed to improve before this, use limited.The helpless structure type of having to change bearing under some specific operations, and bearing capacity will be had a greatly reduced quality.The utility model has significantly improved its stability and working speed on the basis that guarantees bearing products life-span, bearing capacity.Through overtesting, this novel retainer increases by 20% on year-on-year basis than the conventional construction retainer life-span; Rotating speed can improve 15%, and cost reduces by 12%.Satisfy user's usage requirement comprehensively.Broken through long-term puzzlement technical barrier both domestic and external.

Description of drawings:

Fig. 1 is single intersection roller type pivoting support bearing structural representation.

Among the figure: 1. seat ring, 2. blowout patche, 3. cylindrical roller, 4. retainer, 5. stifled roller piece, 6. taper pin.

Fig. 2 is the preceding retainer structural representation of welding.

Fig. 3 is welding back retainer structural representation.

Embodiment

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

A kind of novel retainer of high speed crossed roller bearing, its pocket hole are equidistant square, and length is 1.05 times of roller catercorner length, and width is 1.03 times of roller diameter.The retainer structure as shown in Figure 2 before the welding.Welding back retainer structure as shown in Figure 3.

Above-mentioned retainer is used for single intersection roller type pivoting support bearing shown in Figure 1, and this bearing comprises seat ring 1, blowout patche 2, cylindrical roller 3, retainer 4, stifled roller piece 5 and taper pin 6.Wherein: cylindrical roller 3 is separated by the some pockets hole on the retainer 4, and contact with the raceway of seat ring 1, blowout patche 2 respectively, have a dress roller breach on the seat ring 1 external diameter direction, treat that cylindrical roller 3 installs, block having a dress roller breach on the seat ring 1 external diameter direction by stifled roller piece 5, and position fastening by taper pin 6.

Claims (1)

1. a novel retainer of high speed crossed roller bearing is characterized in that, the pocket hole of this maintenance is equidistant square, and its length is 1.05 times of roller catercorner length, and width is 1.03 times of roller diameter.

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