CN204628537U - High-strength wearable piston rod - Google Patents
High-strength wearable piston rod Download PDFInfo
- Publication number
- CN204628537U CN204628537U CN201520274282.4U CN201520274282U CN204628537U CN 204628537 U CN204628537 U CN 204628537U CN 201520274282 U CN201520274282 U CN 201520274282U CN 204628537 U CN204628537 U CN 204628537U
- Authority
- CN
- China
- Prior art keywords
- hard alloy
- rod
- alloy sleeve
- piston
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of high-strength wearable piston rod, be made up of the piston body of rod, circlip and hard alloy sleeve, hard alloy sleeve is enclosed within the piston body of rod, welds together between hard alloy sleeve and the piston body of rod with brazing layer, and the end face of hard alloy sleeve is provided with circlip and fixes; The material of the described piston body of rod is 35CrMo material, and the material of hard alloy sleeve is wearable hard alloy material.The utility model improves the erosion resistance of piston rod under high-velocity fluid, significantly improves piston rod working life.
Description
Technical field
The utility model relates to a kind of piston rod in drilling tools, the piston rod especially used in jet-type high energy hydraulic impacter.
Background technique
Piston rod is the part of unique motion in jet-type hydraulic impacter, and its Main Function drives block stamp reciprocal impact detritus.Though adopt the piston rod of conventional High Intensity structure steel material to have good impact toughness in reciprocatory movement, but due to the erosion effect of the rubbing action between cylinder body and high-velocity fluid, piston rod surface is worn and torn, change the matching gap between cylinder body, cause impactor service behaviour decline or quit work.Though adopt the piston rod of integrated type Hardmetal materials significantly can improve the wear-resisting property of piston, cemented carbide impact toughness is little, very easily rupture, and Hardmetal materials is expensive under violent impulsive load operating mode.Therefore, a kind of high-strength wearable piston rod that can use for a long time in high energy hydraulic impacter is designed significant.
Summary of the invention
The purpose of this utility model is the deficiency existed for above-mentioned conventional piston bar, provides a kind of high-strength wearable piston rod.
The utility model is made up of the piston body of rod, circlip and hard alloy sleeve, and hard alloy sleeve is enclosed within the piston body of rod, welds together between hard alloy sleeve and the piston body of rod with brazing layer, and the end face of hard alloy sleeve is provided with circlip and fixes; The material of the described piston body of rod is 35CrMo material, and the material of hard alloy sleeve is wearable hard alloy material.
The beneficial effects of the utility model:
Piston rod and cylinder body matching surface are hard alloy sleeve, and cemented carbide is high hardness wear-resisting material, therefore substantially increases the Anti-erosion to high-velocity fluid and abrasive resistance, avoid the problem of single use conventional High Intensity structural steel not erosion resistance and wearing and tearing; The alloyed steel processing that the piston body of rod adopts toughness large, ensure that piston rod has the ability of good shock resistance fracture, avoid the problem adopting whole hard alloy formula piston rod shock resistance fracture energy low, and saved the consumption of Hardmetal materials, greatly reduce material and the processing cost of piston rod.Improve the erosion resistance of piston rod under high-velocity fluid, significantly improve piston rod working life.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Wherein: 1-circlip, 2-brazing layer,
3-hard alloy sleeve,
4-piston the body of rod.
Embodiment
Refer to shown in Fig. 1, the utility model is made up of the piston body of rod 4, circlip 1 and hard alloy sleeve 3, hard alloy sleeve 3 is enclosed within the piston body of rod 4, welds together between hard alloy sleeve 3 and the piston body of rod 4 with brazing layer 2, and the end face of hard alloy sleeve 3 is provided with circlip 1 and fixes; The material of the described piston body of rod 4 is 35CrMo material, and the material of hard alloy sleeve 3 is wearable hard alloy material.
Claims (1)
1. a high-strength wearable piston rod, it is characterized in that: be made up of the piston body of rod (4), circlip (1) and hard alloy sleeve (3), hard alloy sleeve (3) is enclosed within the piston body of rod (4), weld together with brazing layer (2) between hard alloy sleeve (3) and the piston body of rod (4), the end face of hard alloy sleeve (3) is provided with circlip (1) and fixes; The material of the described piston body of rod (4) is 35CrMo material, and the material of hard alloy sleeve (3) is wearable hard alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274282.4U CN204628537U (en) | 2015-05-01 | 2015-05-01 | High-strength wearable piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274282.4U CN204628537U (en) | 2015-05-01 | 2015-05-01 | High-strength wearable piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628537U true CN204628537U (en) | 2015-09-09 |
Family
ID=54047570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520274282.4U Expired - Fee Related CN204628537U (en) | 2015-05-01 | 2015-05-01 | High-strength wearable piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628537U (en) |
-
2015
- 2015-05-01 CN CN201520274282.4U patent/CN204628537U/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: 20150909 Termination date: 20160501 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |