CN204113130U - A kind of super strong type Rhizoma Sparganii circular arc drilling rod - Google Patents
A kind of super strong type Rhizoma Sparganii circular arc drilling rod Download PDFInfo
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- CN204113130U CN204113130U CN201420532168.2U CN201420532168U CN204113130U CN 204113130 U CN204113130 U CN 204113130U CN 201420532168 U CN201420532168 U CN 201420532168U CN 204113130 U CN204113130 U CN 204113130U
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Abstract
A kind of super strong type Rhizoma Sparganii circular arc drilling rod, comprise male joint and the female joint of the body of rod and the welding of body of rod two ends, the body of rod is prismatic, and the end that described male joint is connected with the body of rod with female joint is provided with boss, and male joint and female joint are inserted in the through hole of the body of rod by boss; Body of rod one end and male joint joint, the body of rod other end and female joint joint are equipped with joint keyway, and the bottom land of joint keyway is positioned on the sidewall of male joint, female joint and boss thereof, and joint keyway internal fixtion has joint key.The utility model structure is simple, be convenient to implement processing, joint keyway welds or built-up welding with joint key, greatly can increase the bonding strength between the body of rod and male joint, female joint, thus make up the deficiency of the body of rod and male joint and female joint commissure intensity, greatly improve structural strength, make connection more fully with firm, prevent drilling rod from rupturing in the body of rod and male joint and female joint commissure, effectively extend drilling life of drill pipe.
Description
Technical field
The utility model belongs to mining drilling tool technical field, particularly a kind of for coal mine gas drainage, the super strong type Rhizoma Sparganii circular arc drilling rod visiting the drilling construction such as water, spy tomography.
Background technology
At present, the structure of Rhizoma Sparganii circular arc drilling rod comprises male joint, the body of rod, female joint three part, and after three parts are processed respectively, male joint and female joint are welded on body of rod two ends.Although above-mentioned Rhizoma Sparganii circular arc jackrod structure has certain superiority, the weld strength of male joint and female joint and body of rod junction still has much room for improvement.In actual production, because operating mode is complicated, drilling rod easily ruptures in the junction of the body of rod and male joint and female joint, affects the continuity of construction operation and the application life of drilling rod.
Utility model content
The purpose of this utility model be to provide a kind of structure simple, connect firm and the super strong type Rhizoma Sparganii circular arc drilling rod of commissure fracture can be reduced.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of super strong type Rhizoma Sparganii circular arc drilling rod, comprise male joint and the female joint of the body of rod and the welding of body of rod two ends, the body of rod is Rhizoma Sparganii circular arc, through hole is provided with in the body of rod, the end that male joint is connected with the body of rod with female joint is provided with boss, male joint and female joint are inserted in the through hole of the body of rod by boss, described body of rod one end and male joint joint, the body of rod other end and female joint joint are equipped with joint keyway, the bottom land of joint keyway is positioned at male joint, on the sidewall of female joint and boss thereof, joint keyway internal fixtion has joint key.
The length direction line of described joint keyway parallels with the axis of the body of rod.
Described joint keyway is across on the weld seam between male joint and the body of rod, between female joint and the body of rod.
Described joint key is welded in joint keyway.
The through hole of the described body of rod is prismatic or cylindrical.
Described boss is prismatic or cylindrical.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model comprises male joint and the female joint of the body of rod and the welding of body of rod two ends, the body of rod is Rhizoma Sparganii circular arc, through hole is provided with in the body of rod, the end that male joint is connected with the body of rod with female joint is provided with boss, male joint and female joint are inserted in the through hole of the body of rod by boss, described body of rod one end and male joint joint, the body of rod other end and female joint joint are equipped with joint keyway, the bottom land of joint keyway is positioned at male joint, on the sidewall of female joint and boss thereof, joint keyway internal fixtion has joint key, its structure is simple, be convenient to implement processing, joint keyway welds or built-up welding with joint key, can greatly increase the body of rod and male joint, bonding strength between female joint, thus make up the deficiency of the body of rod and male joint and female joint commissure intensity, greatly improve structural strength, make connection more fully with firm, prevent drilling rod from rupturing in the body of rod and male joint and female joint commissure, effective prolongation drilling life of drill pipe.
2, joint keyway is across on the weld seam between male joint and the body of rod, between female joint and the body of rod, that is: joint keyway with the weld seam between male joint and the body of rod, between female joint and the body of rod for mid point extends certain length and the degree of depth to both sides, and parallel bar body axis processes, the male joint at the body of rod and two ends and female joint is made to be connected more firm, can effectively improve structure stress situation, can drilling life of drill pipe be extended.
3, the through hole of the body of rod is prismatic or cylindrical; Boss is prismatic or cylindrical, collocation uses flexible and changeable, be convenient to assembling processing, the coordinating of prismatic through hole and prismatic boss, cylindrical hole coordinate the contact area that greatly can increase male joint and female joint and body of rod through hole with cylindrical boss, thus improve structural strength and structural stability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional schematic diagram of male joint or female joint and body of rod junction in Fig. 1;
Fig. 3 is the B-B generalized section in Fig. 2.
Detailed description of the invention
Super strong type Rhizoma Sparganii circular arc drilling rod as shown in Figure 1, Figure 2 and Figure 3, it comprises male joint 2 and the female joint 3 of the body of rod 1 and the welding of the body of rod 1 two ends, weld seam 4 is formed between male joint 2 and the body of rod 1, between female joint 3 and the body of rod 1, the body of rod 1 is Rhizoma Sparganii circular arc, be provided with through hole in the body of rod 1, and through hole is prismatic.
The inner end be connected with the body of rod 1 in male joint 2 and female joint 3 is provided with boss 5, and male joint 2 and female joint 3 are inserted in the through hole of the body of rod 1 by boss 5.Joint keyway 6 is equipped with at the body of rod 1 left end and male joint 2 joint, the body of rod 1 right-hand member and female joint 3 joint, joint keyway 6 is across on the weld seam 4 between male joint 2 and the body of rod 1, between female joint 3 and the body of rod 1, the bottom land of joint keyway 6 is positioned on the sidewall of male joint 2, female joint 3 and boss 5 thereof, be welded with joint key 7 in joint keyway 6, or the gap between joint keyway 6 and joint key 7 is filled up in built-up welding.
The length direction line of joint keyway 6 parallels with the axis of the body of rod 1, and three joint keyways 6 are equidistantly distributed on three side planes of the body of rod 1.
In the present embodiment, the through hole of the body of rod 1 is prismatic, and boss 5 is cylindrical; Joint key 7 for flat key, woodruff key or can be formed by built-up welding.
In the utility model, joint keyway 6 welds with joint key 7 or built-up welding is formed, and greatly can increase the body of rod 1 and the bonding area between male joint 2 and female joint 3, makes connection more fully with firm, thus greatly improves structural strength.
Be not limited to above-mentioned embodiment, in the utility model: the through hole of the body of rod 1 also can be cylindrical; Boss 5 can be prismatic.
Claims (6)
1. a super strong type Rhizoma Sparganii circular arc drilling rod, comprise male joint and the female joint of the body of rod and the welding of body of rod two ends, the body of rod is Rhizoma Sparganii circular arc, through hole is provided with in the body of rod, the end that male joint is connected with the body of rod with female joint is provided with boss, male joint and female joint are inserted in the through hole of the body of rod by boss, it is characterized in that: described body of rod one end and male joint joint, the body of rod other end and female joint joint are equipped with joint keyway, the bottom land of joint keyway is positioned on the sidewall of male joint, female joint and boss thereof, and joint keyway internal fixtion has joint key.
2. super strong type Rhizoma Sparganii circular arc drilling rod as claimed in claim 1, is characterized in that: the length direction line of described joint keyway parallels with the axis of the body of rod.
3. super strong type Rhizoma Sparganii circular arc drilling rod as claimed in claim 1 or 2, is characterized in that: described joint keyway is across on the weld seam between male joint and the body of rod, between female joint and the body of rod.
4. super strong type Rhizoma Sparganii circular arc drilling rod as claimed in claim 3, is characterized in that: described joint key is welded in joint keyway.
5. super strong type Rhizoma Sparganii circular arc drilling rod as claimed in claim 4, is characterized in that: the through hole of the described body of rod is prismatic or cylindrical.
6. super strong type Rhizoma Sparganii circular arc drilling rod as claimed in claim 5, is characterized in that: described boss is prismatic or cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532168.2U CN204113130U (en) | 2014-09-17 | 2014-09-17 | A kind of super strong type Rhizoma Sparganii circular arc drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532168.2U CN204113130U (en) | 2014-09-17 | 2014-09-17 | A kind of super strong type Rhizoma Sparganii circular arc drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113130U true CN204113130U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420532168.2U Active CN204113130U (en) | 2014-09-17 | 2014-09-17 | A kind of super strong type Rhizoma Sparganii circular arc drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014199A (en) * | 2016-05-18 | 2016-10-12 | 燕山大学 | Sectional type uniform-wall-thickness screw drilling tool stator |
-
2014
- 2014-09-17 CN CN201420532168.2U patent/CN204113130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014199A (en) * | 2016-05-18 | 2016-10-12 | 燕山大学 | Sectional type uniform-wall-thickness screw drilling tool stator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |