Multifunctional diamond bearing testing machine
A bearing test and diamond technology, applied in mechanical bearing testing, etc., can solve problems such as inability to characterize bearing performance, limit the use of downhole tools, evaluation and promotion, and performance degradation of diamond sheets
Inactive Publication Date: 2017-08-25
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology
In the actual manufacturing process of diamond bearings, due to the high temperature firing or welding process, the performance of diamond sheets generally declines, and the performance of a single diamond sheet cannot represent the performance of a bearing composed of multiple diamond sheets, making the current performance evaluation of diamond bearings common. The large gap seriously limits the use, evaluation and promotion of downhole tools
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Embodiment Construction
[0021] Combine below Figure 1-Figure 4 The present invention will be further described in detail with examples, and the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.
[0022] A multifunctional diamond bearing testing machine, comprising a bracket 1 and a test bench, the test bench is installed on the bracket 1, the test bench includes a bearing chuck 2 and a bearing fixing flange 3, and the bearing fixing flange 3 is rotatably installed on the bearing clamp A spherical hinge leveling device 5 is arranged above the disk 2 and below the bearing chuck 2. The spherical hinge leveling device 5 includes a spherical tray 4, a spherical protrusion 6 and a constraint spring 8. The spherical surfaces of the spherical tray 4 and the spherical protrusion 6 cooperate with each other. Together, the upper surface of the spherical tray 4 and the convex surface of the spherical protrusion 6 are all milled wi...
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The invention discloses a multifunctional diamond bearing testing machine, which comprises a bracket and a test bench, the test bench is installed on the bracket, the test bench includes a bearing chuck and a bearing fixing flange, and the bearing fixing flange is rotatably installed on the bearing chuck Above and below the bearing chuck, there is a spherical hinge leveling device. The spherical hinge leveling device includes a spherical tray, a spherical protrusion and a restraint spring. The spherical tray and the spherical surface of the spherical protrusion cooperate with each other. On the upper surface of the spherical tray and the spherical The protruding convex surface is milled with multiple circles of circular grooves, the shallower circular grooves can accommodate grease for lubrication, the restraint spring is arranged between the spherical tray and the spherical protrusion, and the restraining spring is evenly arranged between the spherical tray and the spherical protrusion in a ring between. The multifunctional diamond bearing testing machine can test the overall friction performance, wear performance, starting torque, working life, etc. of the diamond bearing in the state of mud washing. At the same time, it can perform high-speed polishing and deburring operations on the diamond bearing.
Description
technical field [0001] The invention relates to the field of drilling and drilling tool testing, in particular to a multifunctional diamond bearing testing machine. Background technique [0002] In the prior art, diamond bearings are one of the key components of downhole drilling tools, especially downhole power drilling tools. Diamond bearings have been working in mud environments, and their friction, wear, impact resistance, and working life are key components of downhole power. The main influencing factors of drilling tool performance. At present, there is no experimental equipment for testing diamond bearings. It is only to test the impact toughness and friction performance of the diamond sheet (polycrystalline diamond or polycrystalline diamond composite sheet) used to manufacture the bearing before the diamond bearing is manufactured. Bearing performance. In the actual manufacturing process of diamond bearings, due to the high temperature firing or welding process, t...
Claims
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IPC IPC(8): G01M13/04
Inventor 王瑜刘宝林王志乔周琴
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)