CN203035090U - TC (tungsten carbide) bearing - Google Patents
TC (tungsten carbide) bearing Download PDFInfo
- Publication number
- CN203035090U CN203035090U CN 201220742359 CN201220742359U CN203035090U CN 203035090 U CN203035090 U CN 203035090U CN 201220742359 CN201220742359 CN 201220742359 CN 201220742359 U CN201220742359 U CN 201220742359U CN 203035090 U CN203035090 U CN 203035090U
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- bearing
- hard alloy
- resistant layer
- resistance
- utility
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Abstract
The utility model relates to the technical field of TC (tungsten carbide) bearing manufacture, in particular to a TC bearing. The TC bearing comprises a bearing body, and a hard alloy wear-resistant layer is arranged on the bearing body. As brazing filler metal is high in Ni content, surface radiance is improved, and more ideal appearance is achieved. Washout resistance of the bearing is greatly improved under composite reinforcing action of Ni-Mn, and corrosion and rust resistance of the bearing is improved by natural corrosion resistance of the Ni element.
Description
Technical field
The utility model relates to oil drilling machine manufacturing technology field, relates in particular to a kind of TC bearing.
Background technology
The rock bit Failure Analysis is shown the damage of bearing is the principal mode that rock bit is destroyed.Studies show that further the source of damage of TC bearing (carbide alloy journal bearing) mainly contains: the resistance to wearing of bearing itself, bite-resistant and anti-overheated ability are low, and bearing is damaged in early days; Sealing oil storage compensation thrashing, the lubricating condition of bearing is destroyed, and bearing is worked in the abrasive particle medium, thereby causes the bearing early damage; Improper use, actual operation parameter have surpassed the scope that the design bearing ability allows.Therefore, improve the application life of drill bit, except the sealing and application life, bite-resistant and anti-overheated ability and correct use that improve sealing oil storage compensation system, also to improve resistance to wearing of bit bearing, therefore the requirement to its hardness is also more strict in manufacture process.At present, TC bearing degree of resistance to wearing is all lower, causes the too early damage of helicoid hydraulic motor.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of TC bearing is provided, and improves the application life of bearing, increases abrasion-resistance, and is corrosion-resistant, antirust.
The utility model for achieving the above object, by the following technical solutions: a kind of TC bearing is characterized in that: comprise bearing body, described bearing body is provided with one deck hard alloy abrasion-resistant layer.
Described hard alloy abrasion-resistant layer adopts the solder material.This solder is: Cu-Mn-Ni, mass percent is: Cu50%, Ni30%, Mn20% or Cu40%, Ni30%, Mn30%.
The thickness of described hard alloy abrasion-resistant layer is 2mm to 3mm.
The thickness of described hard alloy abrasion-resistant layer is 2mm.
The beneficial effects of the utility model are: by set up the hard alloy abrasion-resistant layer that one deck contains solder material at bearing body, solder material is owing to Ni content height, and surface brightness improves, and reaches comparatively ideal outward appearance.The complex intensifying effect of Ni-Mn has improved the abrasion-resistance of bearing greatly, and the born corrosion resistance characteristic of Ni element has improved the corrosion-resistant and antirust ability of bearing.
Description of drawings
Fig. 1 is the metallograph of WC hard alloy blocks in the prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is metallograph of the present utility model.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Figure 2, a kind of TC bearing comprises bearing body 1, and described bearing body is provided with one deck hard alloy abrasion-resistant layer 2.Described hard alloy abrasion-resistant layer adopts the solder material.This solder is: Cu-Mn-Ni, mass percent is: Cu50%, Ni30%, Mn20% or Cu40%, Ni30%, Mn30%.Preferably, the thickness of described hard alloy abrasion-resistant layer is 2mm to 3mm.Preferably, the thickness of described hard alloy abrasion-resistant layer is 2mm.
By set up the hard alloy abrasion-resistant layer that one deck contains solder material at bearing body, solder material is owing to Ni content height, and surface brightness improves, and reaches comparatively ideal outward appearance.The complex intensifying effect of Ni-Mn has improved the abrasion-resistance of bearing greatly, and the born corrosion resistance characteristic of Ni element has improved the corrosion-resistant and antirust ability of bearing.
As shown in Figure 3, solder material is owing to Ni content height in the utility model, and surface brightness improves, and reaches comparatively ideal outward appearance.The complex intensifying effect of Ni-Mn has improved the abrasion-resistance of bearing greatly, and the born corrosion resistance characteristic of Ni element has improved the corrosion-resistant and antirust ability of bearing.Simultaneously, use the scolder of this type of high Ni content, to the sealing-in better effects if of alloy block, traditional scolder tends to cause the alloy block crack at edge in the process of soldering, can effectively avoid this situation but use this kind scolder.
The above only is preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. TC bearing, it is characterized in that: comprise bearing body, described bearing body is provided with one deck hard alloy abrasion-resistant layer.
2. TC bearing according to claim 1 is characterized in that: described hard alloy abrasion-resistant layer employing solder material.
3. TC bearing according to claim 2, it is characterized in that: the thickness of described hard alloy abrasion-resistant layer is 2mm to 3mm.
4. TC bearing according to claim 2, it is characterized in that: the thickness of described hard alloy abrasion-resistant layer is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220742359 CN203035090U (en) | 2012-12-28 | 2012-12-28 | TC (tungsten carbide) bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220742359 CN203035090U (en) | 2012-12-28 | 2012-12-28 | TC (tungsten carbide) bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035090U true CN203035090U (en) | 2013-07-03 |
Family
ID=48687223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220742359 Expired - Fee Related CN203035090U (en) | 2012-12-28 | 2012-12-28 | TC (tungsten carbide) bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035090U (en) |
-
2012
- 2012-12-28 CN CN 201220742359 patent/CN203035090U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20201228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |