CN204475400U - Drill steel, drill steel semiproduct and there is the hydraulic burster of this drill steel - Google Patents

Abstract

The utility model relates to a drill rod, a drill rod semi-finished product and a hydraulic breaker with the drill rod. Specifically, the utility model provides a drill rod for a hydraulic breaker, including a drill rod body, one end of which is a quadrangular tip, wherein the drill rod semi-finished product used to make the drill rod body is made of a forging process One end is squared to make a square tip. In addition, the utility model also provides a drill rod semi-finished product for making the drill rod and a hydraulic breaker with the drill rod. In the drill rod of the utility model and the hydraulic breaker with the drill rod, because the quadrangular tip of the drill rod is manufactured by a forging process, the material density of the quadrangular tip of the drill rod is improved, and the The wear resistance of the quadrangular tip is improved, so that the tip keeps hitting the rock and other surfaces with a small cross-sectional area during work, which is conducive to the transmission of force, improves the working efficiency of the drill rod, and significantly improves the drill rod. rod life.

Description

Drill rod, drill rod semi-finished product and hydraulic breaker with the drill rod

technical field

The utility model relates to the technical field of hydraulic breaker components, in particular to a drill rod, a semi-finished drill rod and a hydraulic breaker with the drill rod.

Background technique

At present, the power of the hydraulic breaker used in the project comes from the excavator, loader or pump station. The driving working principle includes full hydraulic type, hydraulic and gas combined type, etc., all of which push the drill rod through the movement of the piston, so that the drill rod produces impact force. On the rock, rely on the impact to break the rock. Yet the life-span of existing drill rod is generally on the short side.

Utility model content

The purpose of the utility model is to overcome at least one defect of the existing drill rod, provide a novel drill rod, and significantly improve the service life of the drill rod.

In order to achieve the above object, the utility model provides a drill rod for a hydraulic breaker, which includes a drill rod body, one end of which is a square-shaped tip. In particular, one end of the drill rod semi-finished product used to make the drill rod body is processed into a square shape by a forging process, so as to make the square tip.

Further, the length of the quadrangular tip is 3/4 to 1/2 of the length of the drill rod body.

Further, the length of the quadrangular pointed part is 200mm to 1000mm.

Further, the included angle between each of the four sides of the quadrangular tip and the axis of the drill rod body is 5° to 22°.

The utility model also provides a drill rod semi-finished product for making any one of the above drill rods, which includes: a first rod segment used to make the quadrangular tip of the drill rod and from the first rod A second rod segment whose one end face extends along the axis of the first rod segment.

Further, the diameter of the first rod segment is larger than the diameter of the second rod segment.

Further, the length of the semi-finished drill rod is less than the length of the drill rod.

Further, the second rod segment is manufactured by lathe process.

The utility model also provides another drill rod semi-finished product for making any of the above drill rods, the drill rod semi-finished product is a drill rod scrap product formed after at least part of the quadrangular tip of the drill rod is worn; and the The scrapped drill rod is configured to use a forging process to process its worn end into a quadrangular shape to make a quadrangular tip of a new drill rod.

The utility model also provides a hydraulic breaker, which includes any one of the above-mentioned drill rods.

In the drill rod of the utility model and the hydraulic breaker with the drill rod, because the quadrangular tip of the drill rod is manufactured by a forging process, the material density of the quadrangular tip of the drill rod is improved, and the The wear resistance of the quadrangular tip is improved; and the length of the quadrangular tip is extended relative to the tip of the existing drill rod, because the extension of the quadrangular tip keeps the tip at a small cross-section during work. The area impacts the rock and other surfaces, which is conducive to the transmission of force, which not only improves the working efficiency of the drill rod, but also significantly improves the service life of the drill rod. In addition, using the forging process to manufacture the square-shaped tip of the drill rod also significantly saves the amount of steel used.

Description of drawings

Hereinafter, some specific embodiments of the present utility model will be described in detail in an exemplary rather than restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is the schematic structural diagram of existing drill rod;

Fig. 2 is a schematic structural diagram of a drill rod according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a drill rod semi-finished product according to an embodiment of the present invention;

Fig. 4 is a schematic structural view of a semi-finished drill rod according to another embodiment of the present invention.

Detailed ways

According to the following detailed description of specific embodiments of the utility model in conjunction with the accompanying drawings, those skilled in the art will be more aware of the above and other objectives, advantages and features of the utility model.

Fig. 1 is a schematic structural view of a conventional drill rod 20'. The production process of the existing drill rod is firstly to use a lathe to process the steel material into a drill rod semi-finished product, and then use a milling machine or a sawing machine to mill one end of the drill rod semi-finished product into a quadrangle and a cone, so that one end of the drill rod has a diameter of 200mm to 300mm. For the long quadrangular and tapered part 211', finally the tapered part of the drill rod or the whole drill rod is polished, heat treated and painted. However, the inventors have found that the existing drill rod 20' has a relatively short lifespan during use, which may be due to the fact that the material density in the existing drill rod 20' is relatively loose and the length of the four-diamond and tapered portion 211' is relatively short. caused by short.

Fig. 2 is a schematic structural diagram of a drill rod according to an embodiment of the present invention. The embodiment of the present invention provides a drill rod 20 for a hydraulic breaker. The drill rod 20 may include a drill rod body 21 with a square tip 211 at one end for breaking rocks. In particular, one end of the semi-finished drill rod used for making the drill rod body is processed into a square shape by a forging process, so as to make the square tip 211 . Using the forging process, the material density of the quadrangular tip 211 of the drill rod 20 can be increased, thereby improving its wear resistance, and then improving the service life of the drill rod 20, which can exceed the use of the existing drill rod 20' More than 1.5 times of life. Using the forging process, the length of the material is also extended. Since the quadrangular tip 211 of the drill rod is formed by forging, the drill rod 20 can also be called a forged drill rod.

In some embodiments of the present invention, the length of the quadrangular tip 211 is 3/4 to 1/2 of the length of the drill rod body 21 , for example, the length of the quadrangular tip 211 is 200 mm to 1000 mm. The included angle between each of the four sides of the quadrangular tip 211 and the axis of the drill rod body is 5° to 22°. For drill rods 20 of different sizes and different sizes, the quadrangular tip 211 formed after the front part is forged, the included angle between each of the four sides of the quadrangular tip 211 and the axis of the drill rod body is within the range of 5° to 22°. Preferably, the included angle between each of the four sides of the quadrangular tip 211 and the axis of the drill rod body is 10°. This kind of setting can make the drill rod 20 keep hitting the rock and other surfaces with a small cross-sectional area during the working process, which is conducive to the transmission of power, not only improves the working efficiency of the drill rod 20, but also significantly improves the working efficiency of the drill rod 20. 20 service life.

Fig. 3 is a schematic structural view of a semi-finished drill rod according to an embodiment of the present invention. As shown in Figure 3, the utility model embodiment also provides a kind of drill rod semi-finished product 40 that is used to make the drill rod in any of the above-mentioned embodiments, and it can include the quadrangular tip 211 that is used to make drill rod 20 The first rod segment 41 and the second rod segment 42 extending from one end surface of the first rod segment 41 along the axis of the first rod segment. The length of the drill rod blank 40 is smaller than the length of the drill rod 20 . The diameter of the first rod segment 41 is greater than the diameter of the rest of the drill rod semi-finished product, for example, the diameter of the first rod segment 41 is greater than the diameter of the second rod segment 42 . The second rod segment 42 of the drill rod semi-finished product 40 is manufactured by a turning process. The longer drill rod 20 is obtained by using the shorter drill rod semi-finished product 40 , which significantly saves the manufacturing material of the drill rod 20 .

For example, taking the hydraulic breaker drill rod of a 20T excavator as an example, the traditional round steel cutting is ¤140mm and the length is 1300mm; the round steel cutting in the embodiment of the utility model is ¤140mm and the length is 1100mm, which can save 20kg Up to 26kg of round steel material, for example, 24kg of round steel material can be saved. When making drill rod semi-finished product, traditional drill rod semi-finished product is to utilize lathe to process 1300mm to the round steel that blanking is 1300mm, and the feed amount of lathe is 5mm; And the drill rod semi-finished product of the utility model embodiment is to blanking as The 1100mm round steel is processed by a lathe to 900mm, and the remaining 200mm can be used for forging, and the feed rate of the lathe is 5mm.

Fig. 4 is a schematic structural view of a semi-finished drill rod according to another embodiment of the present invention. As shown in Figure 4, the utility model also provides a semi-finished drill rod for making the drill rod in any of the above-mentioned embodiments, the semi-finished drill rod is formed after at least part of the quadrangular tip of the drill rod is worn The scrapped drill rod 40 ′; and the scrapped drill rod 40 ′ is configured to use a forging process to process its worn end into a square shape, so as to make a square tip 211 of a new drill rod 20 . That is to say, after the existing drill rod 20 ′ is used, because the tip is worn, the working efficiency is reduced, and the drill rod 20 ′ becomes scrap product 40 ′, which cannot be used again. However, the inventor of the present utility model proposes to forge the scrapped drill rod 40 ′ to form a new drill rod of the utility model, which can be used continuously for waste utilization. In the embodiment of the present utility model, the scrapped drill rod 40 that can be used for reuse is preferably formed after the drill rod 20 ′ processed in a common way is worn out. That is, utilize a milling machine or a sawing machine to mill one end of the drill rod semi-finished product into 200mm to 300mm long quadrangle and taper, and the drill rod 20 ' made after scrapping can be remade by the forging process proposed by the utility model to form a new The tip of the drill rod, that is, a new drill rod 20 is formed.

The embodiment of the utility model also provides a hydraulic breaker, which includes the drill rod 20 in any one of the above embodiments. The hydraulic breaker has high working efficiency and long service life.

So far, those skilled in the art should recognize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, they can still be used according to the present invention without departing from the spirit and scope of the present invention. Many other variations or modifications that conform to the principles of the utility model are directly determined or derived from the disclosed content of the new model. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. for a drill steel for hydraulic burster, it is characterized in that, comprise drill steel body, its one end is four prismatic tips, wherein, utilization forges technique and four prismatics is processed in the half-finished one end of drill steel being used for making described drill steel body, to make described four prismatic tips.

2. drill steel according to claim 1, is characterized in that, the length of described four prismatic tips is 3/4 to 1/2 of the length of described drill steel body.

3. drill steel according to claim 1, is characterized in that, the length of described four prismatic tips is 200mm to 1000mm.

4. drill steel according to claim 1, is characterized in that, in four sides of described four prismatic tips, the angle of each and described drill steel body axis is 5 ° to 22 °.

5. one kind for making the drill steel semiproduct of drill steel according to any one of Claims 1-4, it is characterized in that, comprising: for make four prismatic tips of described drill steel the first bar section and from one end end face of described first bar section along the second bar section of the Axis Extension of described first bar section.

6. drill steel semiproduct according to claim 5, is characterized in that, the diameter of described first bar section is greater than the diameter of described second bar section.

7. drill steel semiproduct according to claim 6, is characterized in that, the half-finished length of described drill steel is less than the length of described drill steel.

8. drill steel semiproduct according to claim 5, is characterized in that, described second bar section utilizes turnery to make.

9. for making drill steel semiproduct for drill steel according to any one of Claims 1-4, it is characterized in that, described drill steel semiproduct are the drill steel scrap that at least part of wearing and tearing of four prismatic tips of drill steel are formed afterwards; And

Described drill steel scrap is configured to utilize and forges one end that technique is worn and be processed into four prismatics, to make four prismatic tips of new drill steel.

10. a hydraulic burster, is characterized in that, comprises the drill steel according to any one of Claims 1-4.