CN201269104Y - Drill rod of hydraulic breaking hammer - Google Patents
Drill rod of hydraulic breaking hammer Download PDFInfo
- Publication number
- CN201269104Y CN201269104Y CNU2008201623086U CN200820162308U CN201269104Y CN 201269104 Y CN201269104 Y CN 201269104Y CN U2008201623086 U CNU2008201623086 U CN U2008201623086U CN 200820162308 U CN200820162308 U CN 200820162308U CN 201269104 Y CN201269104 Y CN 201269104Y
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- drill shank
- drill steel
- drill
- core
- steel core
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Abstract
The utility model discloses a hydraulic breaking hammer drill shank, which consists of a drill shank body and a drill shank core part; wherein, the drill shank body adopts relatively soft steel while the drill shank core part adopts relatively hard steel; the front end of the drill shank body is firstly drilled with a hole which can hold drill shank cores with different shapes, then the drill shank core is put into the hole, and the drill shank body and the drill shank core are fixed into a whole structure by forging. The hydraulic breaking hammer drill shank has the advantages that the tail end of the drill shank core part is provided with a plurality of ring-shaped grooves or a step or is designed to be small at the front end and big at the rear end, therefore, when the drill shank body and the drill shank core are fixed into a whole structure by forging, the drill shank core part is not easy to drop out of the drill shank body. The hydraulic breaking hammer drill shank can improve the wearing resistance of the drill shank, reduce the cost, prolong the service life of the drill shank and save the cost by two thirds, and the piston is not easy to be damaged.
Description
Technical field
The utility model relates to a kind of drill steel, especially relates to a kind of hydraulic crushing hammar drill rod, belongs to the mining machinery field.
Background technology
Hydraulic breaking hammer is in recent years in the mine, railway, and highway, the breaking ores that industries such as urban construction are used is repaired the roads, and cuts into a mountain bridge demolition, the indispensable machinery of removing etc.According to statistics, national quartering hammer was sold about 8200 by June in 2007, at existing nearly 20,000 quartering hammers of China, and recent years demand in continuous increase.
Drill steel is the important component part on the hydraulic breaking hammer, also is consumable accessory, and the drill steel consumption is big, the expense height is the problem of users' headache.The use amount of annual China drill steel is about 100,000.Because the drill steel working environment that uses is more abominable at present.So, require the intensity of drill steel and toughness, wear-resisting etc. very high.At present, all adopt with a kind of steel (as 42CrMo etc.) the drill steel front end of domestic employing, rear end, and wearing and tearing are very fast, and every drill steel can only be with three/once scrapping serious waste.If drill steel adopts the very high tool steel of intensity; Cost can increase on the one hand, and its intensity is higher than piston intensity on the other hand, and piston is very easily damaged.Therefore, at a kind of cored bar drill steel Japanese and that Korea S adopts.Be that the drill steel main body adopts softer steel, and the drill steel front end bore a hole, by cooling or technology such as be pressed into and be bumped into the harder plug (see figure 4) of intensity, can improve the abrasion resistance of drill steel like this, reduce cost, increase the application life of drill steel, also not fragile piston.But its major defect is a plug is a cylinder, and cylindrical does not have step; In the process of using, because the drill steel vibration is violent, plug and drill steel main body are easy to become flexible, and plug drops out, and has had a strong impact on the use of hydraulic breaking hammer.
The utility model content
The purpose of this utility model is to provide a kind of drill steel to adopt inside and outside two kinds of material Forging Technologies, the purpose of this utility model is implemented by following technical scheme: drill steel is formed (see figure 2) by drill steel core 1 and drill steel main body 2 two parts, the drill steel main body adopts softer steel relatively, and the drill steel core adopts harder steel relatively; Earlier bore the hole that to put into difform drill steel core, again the drill steel core is put into this hole, by forging drill steel main body and the drill steel core structure that is fixed as one in the drill steel body front end.
Described drill steel body front end is drilled with centre bore, during forging the drill steel core is inserted in the centre bore forging and molding (see figure 1) together.
Described drill steel core front is a cone, and the middle part is a cylinder, and end has several annular groove (see figure 1)s.
Described drill steel core front is a cone, and the middle part is a cylinder, and end is provided with a step.Simultaneously, specially, make its surface roughness bigger with drill steel core external cylindrical surface hacking.(see figure 2).
Described drill steel core is a cone, and front end is little, the big (see figure 3) in rear end.
Advantage of the present utility model is; The drill steel core ends have several annular grooves be provided with a step or front end little, the rear end is big; Drill steel main body and drill steel core are to be fixed as one after the structure by forging like this, and the drill steel core is difficult for dropping out from the drill steel main body.Can improve the abrasion resistance of drill steel, reduce cost, increase the application life of drill steel, also not fragile piston.Cost-saved 2/3rds.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.Among the figure: 1-drill steel core, 2-drill steel main body.
Fig. 2 is the structural representation of embodiment 2.Among the figure: 1-drill steel core, 2-drill steel main body.
Fig. 3 is the structural representation of embodiment 3.Among the figure: 1-drill steel core, 2-drill steel main body.
Fig. 4 is a kind of structural representation of the present utility model.Among the figure: 1-drill steel core, 2-drill steel main body.
The specific embodiment
Example 1: as shown in Figure 1, a kind of hydraulic crushing hammar drill rod, drill steel core 1 and drill steel main body 2 two parts are formed, and the drill steel main body adopts softer steel relatively, and the drill steel core is harder steel relatively.The drill steel main body is connected with the drill steel core by the forging structure that is fixed as one.Described drill steel core front is a cone, and the middle part is a cylinder, and end is provided with several annular grooves.
Example 2: as shown in Figure 2, a kind of hydraulic crushing hammar drill rod, drill steel core 1 and drill steel main body 2 two parts are formed, and adopt softer steel relatively, and the drill steel core is harder steel relatively.The drill steel main body is connected with the drill steel core by the forging structure that is fixed as one.Described drill steel core front is a cone, and the middle part is a cylinder, and end is provided with a step; Simultaneously, specially, make its surface roughness bigger with the existing hacking of drill steel core outside cylinder.
Example 3: as shown in Figure 3, a kind of hydraulic crushing hammar drill rod, drill steel core 1 and drill steel main body 2 two parts are formed, and the drill steel main body adopts softer steel relatively, and the drill steel core is harder steel relatively.The drill steel main body is connected with the drill steel core by the forging structure that is fixed as one.Described drill steel core is a cone, and front end is little, and the rear end is big.
Performance analysis
Annual about 100,000 of the crushing hammar drill rod that uses of China, and annual with the increase of the growth rate more than 20%, and the expense that is used on the drill steel is about more than 400,000,000 yuan.According to analysis, improved drill steel has been divided into drill steel core and drill steel main body two parts, and the drill steel main body is connected with the drill steel core by the forging structure that is fixed as one.Prolonged application life exponentially, use cost can reduce greatly, and cost-saved 2/3rds.Use improved drill steel to reduce expenses and reduce more than 6 times, and can reduce more than 200,000,000 yuan of drill steel cost of use every year than original drill steel.
Claims (4)
1, a kind of hydraulic crushing hammar drill rod, it is characterized in that, described drill steel is made up of drill steel main body and drill steel core two parts, drill steel main body and drill steel core adopt the steel of two kinds of unlike materials to make respectively, in the drill steel body front end hole that can put into the drill steel core is arranged, the drill steel core is put into this hole, and drill steel main body and drill steel core are fixed as one.
2, hydraulic crushing hammar drill rod according to claim 1 is characterized in that, is cone in described drill steel core front, and the middle part is a cylinder, and end is provided with several annular grooves.
3, hydraulic crushing hammar drill rod according to claim 1 is characterized in that, is cone in described drill steel core front, and the middle part is a cylinder, and end is provided with a step.
4, hydraulic crushing hammar drill rod according to claim 1 is characterized in that, is cone at described drill steel core, and front end is little, and the rear end is big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201623086U CN201269104Y (en) | 2008-08-08 | 2008-08-08 | Drill rod of hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201623086U CN201269104Y (en) | 2008-08-08 | 2008-08-08 | Drill rod of hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269104Y true CN201269104Y (en) | 2009-07-08 |
Family
ID=40841704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201623086U Expired - Fee Related CN201269104Y (en) | 2008-08-08 | 2008-08-08 | Drill rod of hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269104Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493515A (en) * | 2011-12-15 | 2012-06-13 | 湖南科技大学 | Structure of hydraulic breaker drill rod, and method for embedding alloy drill bit of hydraulic breaker drill rod |
| CN108517915A (en) * | 2018-04-25 | 2018-09-11 | 水山机械(嘉兴)有限公司 | The drill steel of hydraulic breaking hammer |
-
2008
- 2008-08-08 CN CNU2008201623086U patent/CN201269104Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493515A (en) * | 2011-12-15 | 2012-06-13 | 湖南科技大学 | Structure of hydraulic breaker drill rod, and method for embedding alloy drill bit of hydraulic breaker drill rod |
| CN102493515B (en) * | 2011-12-15 | 2014-09-03 | 湖南科技大学 | Structure of hydraulic breaker drill rod, and method for embedding alloy drill bit of hydraulic breaker drill rod |
| CN108517915A (en) * | 2018-04-25 | 2018-09-11 | 水山机械(嘉兴)有限公司 | The drill steel of hydraulic breaking hammer |
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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: 20090708 Termination date: 20170808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |