CN201254681Y - Tamping pick for railway tamping machine - Google Patents
Tamping pick for railway tamping machine Download PDFInfo
- Publication number
- CN201254681Y CN201254681Y CNU2008200816950U CN200820081695U CN201254681Y CN 201254681 Y CN201254681 Y CN 201254681Y CN U2008200816950 U CNU2008200816950 U CN U2008200816950U CN 200820081695 U CN200820081695 U CN 200820081695U CN 201254681 Y CN201254681 Y CN 201254681Y
- Authority
- CN
- China
- Prior art keywords
- pickaxe
- pick
- tamping
- palm
- railway
- 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
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 239000003082 abrasive agent Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 9
- 239000000956 alloy Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 9
- 241001669679 Eleotris Species 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000005242 forging Methods 0.000 description 9
- 238000005266 casting Methods 0.000 description 6
- 210000001037 metacarpus Anatomy 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 239000013590 bulk material Substances 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The utility model relates to a pickaxe for a tamping machine which is used to tamp and tighten ballast under a railway subgrade sleeper. The pickaxe is characterized in that a pickaxe palm down-inserting front end which is worn very seriously is partially welded by wear resistant materials through surfacing welding, or the total outer surfaces of the pickaxe palm are integrally coated by hard alloy blocks. The utility model uses the method that the pickaxe palm position is partially coated by the hard alloy blocks and is combined with partially-welded wear-resistant materials through surfacing welding, namely: the remained positions which are located at two sides and positive face as well as back face of the pickaxe palm without being coated by the hard alloy blocks are partially welded by the wear resistant materials through surfacing welding. With an ideal wear-resistant effect still being obtained, the production cost of the pickaxe can be reduced greatly. The pickaxe body and the pickaxe palm of the pickaxe not only can be produced integrally, but also can be produced in separate type.
Description
Technical field
The utility model relates to the railway maintenance instrument, specifically a kind of make firm by ramming and consolidation railway bed sleeper at the bottom of the railway tamping car tamping pickaxe of ballast aggregate.
Background technology
At present, the tamping pickaxe that China railways maintenance tamping car uses in tamping operation, its main manufacturing process has two: one, adopt structural alloy steel die forging or low-carbon and low-alloy aluminium to cast shape tamping pickaxe body, local build-up wear-resistant material in pick metacarpus position promptly adopts " forging (casting) makes+local built-up welding " technology.Its two, adopt structural alloy steel die forging or low-carbon and low-alloy aluminium to cast shape tamping pickaxe body, the whole hard metal tip pieces that all coat in pick metacarpus position promptly adopt " forging (casting) makes+integral coating " technology.The local build-up wear-resistant material of pick metacarpus position or in pick metacarpus position the whole hard metal tip pieces that all coat, with the abrasion resistance that improves tamping pickaxe and prolong its application life.
In the production practices, the main failure forms of tamping pickaxe is the concentrated wear of its pick metacarpus position.The tamping pickaxe of " forging (casting) makes+local built-up welding ", after tamping operation was finished about 12～15 kilometers, the heavy wear that wear extent reaches pick palm height about 20% can take place in lower end, pick palm bottom, causes tamping pickaxe to lose efficacy.CN1432688A patent of invention " tamping pickaxe " discloses a kind of tamping pickaxe manufacturing technology.Integral coating hard metal tip piece technology is adopted at the front and the back side at its pick palm, and adopts boring to be bumped into several cylindrical hard alloy blocks posts in the side of the pick palm.This integral coating hard metal tip piece technology has suitable advantage at aspects such as improving the tamping pickaxe abrasion resistance.But its weak point is: use hard metal tip, the piece integral coating pick palm in a large number, cost is higher relatively.Use practice to show, the serious wear position only is positioned at the fraction zone of lower end, pick palm bottom, " good steel only need be used on the blade ", will the whole pick palm and part pick body all coat the hard metal tip piece.More should be noted that: the lateralarea of the pick palm is little, and on limited pick palmar surface, the several cylindrical hard alloy blocks that boring is bumped into has destroyed the continuity that pick is slapped bulk material.Big and frequent making firm by ramming under the impact force action, the pick of drilled sky palm body bursts apart especially easily.The supporting role of pick palm body is disappearance in a single day, and " with the skin gone, what can the hair adhere to ", the carbide alloy excellent abrasive can also can't obtain the most basic assurance.
Summary of the invention
The purpose of this utility model is to overcome the weak point of existing tamping pickaxe, and a kind of railway tamping car tamping pickaxe that abrasion resistance required but also reduced greatly manufacturing cost that not only satisfied is provided.
The technical solution of the utility model is: comprise tamping pickaxe body and the pick palm, insert front end wearing and tearing especially severe position under the pick palm, (being about about 20%～60% distances that pick is slapped whole height), coat the hard metal tip piece to strengthen the protection of ballast aggregate to the wearing and tearing of the pick palm.In the wearing and tearing of the pick palm is not all the other very serious positions, directly exposed pick palm bulk material.(i.e. " forging (casting) makes+the part coating " technology).
Except that These characteristics, can slap the residue position (wearing and tearing of the pick palm are not all the other very serious positions) that two sides and front and the back side do not coat the hard metal tip piece pick, local build-up wear-resistant material is arranged.(i.e. " forging (casting) makes+part coating+local built-up welding " technology).
Wherein the rectangular block that is shaped as of the positive hard metal tip piece that coats of the pick palm has the coating eave tile, coat eave tile base angle C≤85 ° and 〉=15 °.
Railway tamping car tamping pickaxe of the present utility model having guaranteed that tamping pickaxe has under the situation of higher intensity and abrasion resistance, has been saved a large amount of Hardmetal materials, has greatly reduced the manufacturing cost of tamping pickaxe.
Description of drawings
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are coating hard metal tip block structure schematic diagram of the present utility model.
Fig. 5 is a railway tamping car tamping pickaxe structural representation of the present utility model.
Among the figure: 1-coat carbide alloy, 2,3-build-up wear-resistant material, the angle at C-base angle.
The specific embodiment
Embodiment 1: railway tamping car of the present utility model adopts the form of " forging+local built-up welding+part coats " with tamping pickaxe.Under the pick palm, insert front end wearing and tearing especially severe position (being about about 20%～60% distances that pick is slapped whole height), coat the hard metal tip piece, the rectangular block that is shaped as of hard metal tip piece has the coating eave tile, coat eave tile base angle C≤85 ° and 〉=15 ° as Fig. 1, Fig. 2 or shown in Figure 3.In the wearing and tearing of the pick palm is not that very serious all the other positions (pick palm two sides and front and the back side do not coat the residue position of hard metal tip piece) have local build-up wear-resistant material.Wherein, coating method of attachment can adopt as bonding, welding technology such as (electric resistance welding, Contact welding, friction welding, soldering are as gas brazing, salt bath brazing, induction brazing).The high-abrasive material shape of built-up welding is shapes such as truncated cone-shaped, crown, the strip of circle, lengthy motion picture shape.The pick palm both can be made with the pick body is whole, also can assemble with pick body split manufacturing to be connected again.
Embodiment 2: railway tamping car of the present utility model adopts the form of " forging (casting) makes+the part coating " with tamping pickaxe.Under the pick palm, insert front end wearing and tearing especially severe position (being about about 20%～60% distances that pick is slapped whole height), coat the hard metal tip piece, identical with embodiment 1; And wear and tear at the pick palm is not all the other very serious positions, directly exposed pick palm bulk material.
Claims (4)
1, a kind of railway tamping car tamping pickaxe comprises tamping pickaxe body and the pick palm, it is characterized in that: insert front end wearing and tearing especially severe position under the pick palm, the local hard metal tip piece that coats.
2, railway tamping car tamping pickaxe according to claim 1 is characterized in that slapping the residue position that two sides and front and the back side do not coat the hard metal tip piece pick, and the high-abrasive material of local built-up welding is arranged.
3, railway tamping car tamping pickaxe according to claim 1 is characterized in that the rectangular block that is shaped as of the positive hard metal tip piece that coats of the pick palm has the coating eave tile, coat eave tile base angle C≤85 ° and 〉=15 °.
4, railway tamping car tamping pickaxe according to claim 1 is characterized in that: the pick palm both can be made with the pick body is whole, also can assemble with pick body split manufacturing to be connected again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200816950U CN201254681Y (en) | 2008-09-22 | 2008-09-22 | Tamping pick for railway tamping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200816950U CN201254681Y (en) | 2008-09-22 | 2008-09-22 | Tamping pick for railway tamping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254681Y true CN201254681Y (en) | 2009-06-10 |
Family
ID=40737999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200816950U Expired - Fee Related CN201254681Y (en) | 2008-09-22 | 2008-09-22 | Tamping pick for railway tamping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254681Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418304A (en) * | 2011-08-11 | 2012-04-18 | 哈尔滨工业大学 | Wear-resistant tamping pickax and manufacturing method thereof |
| CN103443359A (en) * | 2011-03-28 | 2013-12-11 | 弗兰茨普拉塞铁路机械工业股份有限公司 | Tamping pick |
| CN109440552A (en) * | 2018-12-17 | 2019-03-08 | 唐山昆铁科技有限公司 | Tamping pickaxe head braze-welded structure |
| CN114575201A (en) * | 2020-12-02 | 2022-06-03 | 唐山中铁实业集团有限公司 | Surfacing and brazing combined wear-resistant tamping pick and welding process thereof |
-
2008
- 2008-09-22 CN CNU2008200816950U patent/CN201254681Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103443359A (en) * | 2011-03-28 | 2013-12-11 | 弗兰茨普拉塞铁路机械工业股份有限公司 | Tamping pick |
| CN103443359B (en) * | 2011-03-28 | 2016-06-08 | 弗兰茨普拉塞铁路机械工业股份有限公司 | Mattock |
| CN102418304A (en) * | 2011-08-11 | 2012-04-18 | 哈尔滨工业大学 | Wear-resistant tamping pickax and manufacturing method thereof |
| CN102418304B (en) * | 2011-08-11 | 2013-12-25 | 哈尔滨工业大学 | Wear-resistant tamping pickax and manufacturing method thereof |
| CN109440552A (en) * | 2018-12-17 | 2019-03-08 | 唐山昆铁科技有限公司 | Tamping pickaxe head braze-welded structure |
| CN114575201A (en) * | 2020-12-02 | 2022-06-03 | 唐山中铁实业集团有限公司 | Surfacing and brazing combined wear-resistant tamping pick and welding process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20110922 |