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Thrust bearing

A thrust bearing and outer ring technology, applied in the thrust bearing field, can solve the problems of low service life and applicability, complex thrust bearing structure, poor sealing effect, etc., and achieve the effects of simple structure, low production cost and convenient processing

Inactive Publication Date: 2015-04-08
SUZHOU FIRST CUT PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing thrust bearing has complex structure, inconvenient processing, poor sealing effect, and relatively low service life and applicability

Method used

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] see Figure 1 to Figure 3 , the embodiment of the present invention includes: a thrust bearing, including:

[0019] An outer ring 1, the inner wall of the outer ring 1 is provided with an inner raceway 2, and the two sides of the outer ring 1 are respectively provided with steps 3, the depth of the steps 3 matches the thickness of the fixed ring 4 , the fixing ring 4 is used for fixing the outer ring 1 and the inner ring 5 .

[0020] An inner ring 5, the inner ring 5 is installed in the outer ring 1 through rivets, the outer wall of the inner ring 5 is provided with an outer raceway 6, and the inner raceway 2 is formed by cooperating with...

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PUM

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Abstract

The invention discloses a thrust bearing. The thrust bearing comprises an outer ring, an inner ring and two fixing rings, wherein an inner rolling way is arranged on the inner wall of the outer ring, and steps are arranged on two side surfaces of the outer ring respectively; the inner ring is arranged in the outer ring, an outer rolling way is arranged on the outer wall of the inner ring, rollers are clamped between the inner rolling way and the outer rolling way, a retainer is arranged between every two rollers, a plurality of retainers are connected with one another, an oil groove is formed in the retainer, an oil filling hole is formed in the side wall of the retainer, and a plurality of oil outlets are formed in the inner wall of the retainer; and two fixing rings are arranged at two sides of the inner ring, the outer diameter of the fixing ring is more than the inner diameter of the outer ring to form a retaining edge, and the retaining edge is matched with the steps. The thrust bearing adopting the mode has a simple structure, can be processed conveniently, and is low in manufacture cost, high in bearing capacity and long in service life.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to a thrust bearing. Background technique [0002] Thrust bearings are generally composed of two thrust washers or more thrust washers and a number of rolling elements. In the field of oil drilling, downhole power tools, drill bits, drill collars, etc. form the bottom hole assembly, which is located at the center of the entire drill string. The bottom layer directly provides rock-breaking power for the drill bit, which can effectively increase the mechanical drilling speed and realize the function of directional deflection. Thrust bearing is one of the key components of downhole power drilling tools. It carries drill string load, hydraulic load and impact load during rock breaking. The service life and bearing capacity of thrust bearing affect the performance of the whole downhole power tool. [0003] The existing thrust bearing has complex structure, inconvenient processing, po...

Claims

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Application Information

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IPC IPC(8): F16C19/10F16C19/30F16C33/58F16C33/66
Inventor 冯志刚
Owner SUZHOU FIRST CUT PRECISION MACHINERY