CN203188068U - Abrasion-resistant tamping pickaxe - Google Patents
Abrasion-resistant tamping pickaxe Download PDFInfo
- Publication number
- CN203188068U CN203188068U CN 201320194123 CN201320194123U CN203188068U CN 203188068 U CN203188068 U CN 203188068U CN 201320194123 CN201320194123 CN 201320194123 CN 201320194123 U CN201320194123 U CN 201320194123U CN 203188068 U CN203188068 U CN 203188068U
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- pickaxe
- hard alloy
- pick
- head
- diameter
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Abstract
The utility model relates to an abrasion-resistant tamping pickaxe which can solve the problems that a tamping pickaxe in the prior art is short in service life and large in consumed labor. According to the technical scheme, the abrasion-resistant tamping pickaxe comprises a pickaxe body, a pickaxe head and a hard alloy head. The pickaxe body and the pickaxe head are welded integrally, hard alloy plates are welded on the surface of the trapezoid part of the lower portion of the pickaxe head, hard alloy columns are embedded inside the pickaxe head horizontally and perpendicular to the pickaxe body, a groove is formed in the bottom portion of the pickaxe head, the hard alloy head is embedded into the groove in a welding mode through a rectangular body which is welded with the hard alloy head integrally, and the diameter of the rectangular body is smaller than the diameter of the hard alloy head on the connecting face. The abrasion-resistant tamping pickaxe is simple in structure, long in service life, capable of saving a large amount of labor and innovative in the field of tamping pickax.
Description
Technical field
The utility model relates to tamping pickaxe, particularly a kind of wear-resisting tamping pickaxe.
Background technology
Common tamping pickaxe is about 8-10km application life in maintenance activity, and be 10-15km application life in the heavy repair task.In the field operation construction, during single skylight point construction, just needed to change a tamping pickaxe in every 2-3 days, and when two skylight points were constructed in one day, almost all need to change tamping pickaxe every day.The job site due to limited conditions, is changed tamping pickaxe and is adopted manpower to knock dismounting substantially, needs not stop to knock tamping pickaxe with 8 pounds of sledgehammers, has expended a large amount of manpowers, causes the worker to can not get good rest, is unfavorable for field work safe.Simultaneously, because frequent dismounting causes the distortion of tamping support pick leg installing hole, cause that the pick leg rotates to cause and touch and the damage of top square cylinder and circle cylinder the application life of reducing these parts thereby the pick leg is intermittently excessive.Therefore, the improvement of tamping pickaxe is the problem of needing solution at present badly.
Summary of the invention
At above-mentioned situation, be to solve the defective of prior art, the purpose of the utility model just provides a kind of wear-resisting tamping pickaxe, can effectively solve the problem that prior art application life is short, labor intensive is big.
The technical scheme that the utility model solves is, comprise pick body, pick and hard alloy head, pick body and pick are welded as a whole, pick bottom trapezoidal portions surface soldered has hard metal tip, the vertical embedding with the pick body of pick inner transverse has hard alloy columnar, the pick bottom is fluted, and hard alloy head is welded in the groove by embedding with its cuboid that is welded as a whole, and the diameter of cuboid is less than the diameter of joint face hard alloy head.
The utility model is simple in structure, and long service life is saved a large amount of manpowers, is the innovation on the tamping pickaxe.
Description of drawings
Fig. 1 is structural front view of the present utility model.
Fig. 2 is pick structural front view of the present utility model.
Fig. 3 is hard alloy head front view of the present utility model.
Fig. 4 is pick of the present utility model and hard alloy head welding graph of a relation.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Provided by Fig. 1-4, the utility model comprises pick body 1, pick 2 and hard alloy head 5, pick body 1 and pick 2 are welded as a whole, pick 2 bottom trapezoidal portions surface soldered have hard metal tip 3, pick 2 inner transverse have hard alloy columnar 4 with the 1 vertical embedding of pick body, pick 2 bottoms are fluted 6, and hard alloy head 5 is welded in the groove 6 by embedding with its cuboid that is welded as a whole 7, and the diameter of cuboid 7 is less than the diameter of joint face hard alloy head 5.
In order to guarantee result of use, described hard alloy head 5 is mushroom-shaped.
Described groove 6 and cuboid 7 diameters are consistent.
The diameter at described cuboid 7 and hard alloy head 5 joint face places equals pick 2 bottom trapezoidal portions diameters.
The material of described pick body is ZG25CrNiMo.
The utility model associated materials is as follows:
1. material
The material of wear-resisting tamping pickaxe pick body is ZG25CrNiMo, adopts the investment casting method monoblock cast to come out its chemical composition percentage such as following table 1 by my company:
Table 1
| C | Si | Mn | Cr | Ni | Mo | S | P | Fe |
| 0.24~0.29 | 0.45~0.65 | 0.85~1.10 | 0.90~1.10 | 0.90~1.00 | 0.40~0.60 | ≤0.03 | <0.03 | 96.36~97.16 |
The carbide alloy JD45B(commercially available prod that the high-abrasive material that welds on the pick is).
2. mechanical performance
After the tamping pickaxe pick body casting after heat treatment mechanical performance see the following form 2, the mechanical performance of high-abrasive material sees the following form 2.
Table 2
3. welding
Welding method: high-frequency induction brazing
Solder: B-Cu60ZnMn
Brazing flux: borax 19
Welding temperature: 890-905 ℃
The welding back type of cooling: directly put into incubator after the welding and placed 2.5-4 hour, take out air cooling.
The used carbide alloy of high-abrasive material is JD45B, and Co content is 19%-21%, hardness height, good welding performance.
The wear-resisting tamping pickaxe of the utility model can reach 140km the highest application life in maintenance activity, efficiently solves the deficiency of common tamping pickaxe, and is simple in structure, and long service life is saved a large amount of manpowers, is the innovation on the tamping pickaxe, has good economic and social benefit.
Claims (3)
1. wear-resisting tamping pickaxe, comprise pick body (1), pick (2) and hard alloy head (5), it is characterized in that, pick body (1) and pick (2) are welded as a whole, pick (2) bottom trapezoidal portions surface soldered has hard metal tip (3), pick (2) inner transverse has hard alloy columnar (4) with the vertical embedding of pick body (1), pick (2) bottom fluted (6), hard alloy head (5) is welded in the groove (6) by embedding with its cuboid that is welded as a whole (7), and the diameter of cuboid (7) is less than the diameter of joint face hard alloy head (5).
2. wear-resisting tamping pickaxe according to claim 1 is characterized in that, described groove (6) and cuboid (7) diameter are consistent.
3. wear-resisting tamping pickaxe according to claim 1 is characterized in that, the diameter at described cuboid (7) and hard alloy head (5) joint face place equals pick (2) bottom trapezoidal portions diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194123 CN203188068U (en) | 2013-04-17 | 2013-04-17 | Abrasion-resistant tamping pickaxe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194123 CN203188068U (en) | 2013-04-17 | 2013-04-17 | Abrasion-resistant tamping pickaxe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203188068U true CN203188068U (en) | 2013-09-11 |
Family
ID=49104939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320194123 Expired - Lifetime CN203188068U (en) | 2013-04-17 | 2013-04-17 | Abrasion-resistant tamping pickaxe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203188068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655602A (en) * | 2018-06-05 | 2018-10-16 | 唐山昆铁科技有限公司 | Tamping pickaxe head bead-welding technology |
-
2013
- 2013-04-17 CN CN 201320194123 patent/CN203188068U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655602A (en) * | 2018-06-05 | 2018-10-16 | 唐山昆铁科技有限公司 | Tamping pickaxe head bead-welding technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |