CN203066889U - Connecting piece used for connecting drill rods - Google Patents
Connecting piece used for connecting drill rods Download PDFInfo
- Publication number
- CN203066889U CN203066889U CN 201320060965 CN201320060965U CN203066889U CN 203066889 U CN203066889 U CN 203066889U CN 201320060965 CN201320060965 CN 201320060965 CN 201320060965 U CN201320060965 U CN 201320060965U CN 203066889 U CN203066889 U CN 203066889U
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- CN
- China
- Prior art keywords
- shaft
- connector
- screw thread
- locating
- main shaft
- 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
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Abstract
The utility model discloses a connecting piece used for connecting drill rods. The connecting piece comprises a main shaft body (9), wherein the main shaft body comprises a transmission shaft (1), a positioning shaft (2) and a connecting shaft (6) sequentially from left to right; a through hole (8) penetrating through the transmission shaft (1), the positioning shaft (2) and the connecting shaft (6) is formed in the main shaft body (9); an external thread I (10) is formed in the circumferential surface of the transmission shaft (1); a ring-shaped positioning platform (4) is arranged on the outer surface of the positioning shaft (2); and an external thread II (7) is formed in the circumferential surface of the rightmost end of the connecting shaft (6). The connecting piece used for connecting the drill rods designed by the utility model has the advantages of convenience in mounting and dismounting, simple structure and low cost.
Description
Technical field
The utility model relates to a kind of oil drilling machine accessory, specifically is a kind of connector for jointed rod, belongs to the petroleum machinery field.
Background technology
Nowadays the drilling rod kind is more and more, and structure also has varied as required; Drilling rod not only needs stable rotating speed and bigger torque in rotation process, but also needs bending resistance folding endurance preferably, these not only have requirement to drilling rod, but also the connector of drilling rod is also had requirement, the work of the structure influence drilling rod of connector, so the effect of connector is particularly important; Though present drilling rod connector has reached good connectivity, performances such as intensity, corrosion-resistant and flexing resistance are also fine,, most connector not only loads and unloads inconvenience when loading and unloading connect, and complex structure cost height.
Summary of the invention
Problem to be solved in the utility model provides a kind of connector for jointed rod, is used for solving drilling rod connector loading and unloading inconvenience, complex structure and the high problem of cost.
The technical scheme that the utility model provides is: the connector that is used for jointed rod, comprise main shaft, main shaft from left to right comprises power transmission shaft, locating shaft and connecting axle successively, main shaft inside has the through hole that runs through power transmission shaft, locating shaft and connecting axle, described power transmission shaft periphery is provided with the external screw thread I, described locating shaft external surface is provided with the locating platform of annular, and the periphery of described connecting axle low order end is provided with the external screw thread II.The effect of locating platform is the stroke of the whole drilling rod connector of restriction, thereby avoids the work of drilling rod connector overtravel to damage drill bit or rig.
Described locating shaft has positioning screw hole at the axis body of locating platform left end.Positioning screw hole is used for connector and outside driving member location are used, and prevents that connector from occurring sliding or come off and cause fault and accident.
Described locating shaft is provided with rising as high as the banks of spill at the axis body periphery of locating platform right-hand member.The drilling rod connector is clamped in the place that rises as high as the banks with external tool when assembling drilling rod and rig, thereby rotates drilling rod connector, drill bit or rig by instrument, has not only made things convenient for dismounting, and can also well protect drilling rod connector external surface not to be destroyed.
Described rising as high as the banks is provided with two altogether on the same circumference of locating shaft, described two evenly distributions of rising as high as the banks each other.Instrument can symmetry clamp the drilling rod connector when clamping, stress balance, and the workload that can reduce a staff, and also the instrument that can prevent skids on drilling rod connector surface.
The screw thread effective length of described external screw thread I and external screw thread II is 7-12 centimetre.Screw thread need bear bigger drilling rod active force when connecting driving member, the insufficient strength that is threaded if the screw thread effective length is too short, thereby screw thread easily lost efficacy and causes accident to take place, the long then waste material of screw thread effective length and increase cost are so the effective length of screw thread is decided to be 7-12 centimetre.
Described main shaft adopts the alloy steel material of 40Cr.40cr alloy steel moderate cost, handling ease, after suitable heat treatment, can obtain certain toughness, plasticity and abrasion resistance, has best comprehensive mechanical property, after modified for the manufacture of the machine components that bear moderate duty and medium speed work, the transmission component be can support, moment of torsion and bearing load transmitted, thus can whole intensity and application life of improving connector.
Advantage of the present utility model is: this connector for jointed rod of the utility model design, and not only easy to loading and unloading, and also simple in structure, cost is low.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Label among the figure is expressed as respectively: 1, power transmission shaft; 2, locating shaft; 3, positioning screw hole; 4, locating platform; 5, rise as high as the banks; 6, connecting axle; 7, external screw thread II; 8, through hole; 9, main shaft; 10, external screw thread I.
The specific embodiment
Embodiment
Referring to Fig. 1, the connector that is used for jointed rod, comprise main shaft 9, main shaft 9 from left to right comprises power transmission shaft 1, locating shaft 2 and connecting axle 6 successively, main shaft 9 inside have the through hole 8 that runs through power transmission shaft 1, locating shaft 2 and connecting axle 6, described power transmission shaft 1 periphery is provided with external screw thread I 10, and described locating shaft 2 external surfaces are provided with the locating platform 4 of annular, and the periphery of described connecting axle 6 low order ends is provided with external screw thread II 7.
Described locating shaft 2 has positioning screw hole 3 at the axis body of locating platform 4 left ends.
Described locating shaft 2 rises as high as the banks 5 what the axis body periphery of locating platform 4 right-hand members was provided with spill.
Described rising as high as the banks 5 is provided with two altogether on locating shaft 2 same circumference, rise as high as the banks and 5 evenly distribute each other for described two.
The screw thread effective length of described external screw thread I 10 and external screw thread II 7 is 7-12 centimetre.
Described main shaft 9 adopts the alloy steel material of 40Cr.
In use, earlier power transmission shaft 1 is screwed in the transmission mechanism of rig, dog screw cooperates in the screw-in positioning screw hole 3 after passing transmission mechanism and connector, rig and connector are fixed, this moment locating platform 4 with the position limiting structure chucking of transmission mechanism, hollow boring bit and external screw thread II 7 are connected gets final product at last.
5 the adding of rising as high as the banks makes the staff when loading and unloading smooth work plane be arranged, can not damage the drilling rod connecting rod, and also more laborsaving and convenient.
Locating platform 4 can limit the stroke of whole drilling rod connector, thereby avoids the work of drilling rod connector overtravel to damage drill bit or rig.
The adding of positioning screw hole 3 makes connector and outside driving member accurately to locate, and prevents that connector from occurring sliding or come off and cause fault and accident.
Can well realize the utility model as mentioned above.
Claims (6)
1. the connector that is used for jointed rod, comprise main shaft (9), main shaft (9) from left to right comprises power transmission shaft (1), locating shaft (2) and connecting axle (6) successively, main shaft (9) inside has the through hole (8) that runs through power transmission shaft (1), locating shaft (2) and connecting axle (6), it is characterized in that: described power transmission shaft (1) periphery is provided with external screw thread I (10), described locating shaft (2) external surface is provided with the locating platform (4) of annular, and the periphery of described connecting axle (6) low order end is provided with external screw thread II (7).
2. the connector for jointed rod according to claim 1, it is characterized in that: described locating shaft (2) has positioning screw hole (3) at the axis body of locating platform (4) left end.
3. the connector for jointed rod according to claim 1, it is characterized in that: described locating shaft (2) is provided with rise as high as the banks (5) of spill at the axis body periphery of locating platform (4) right-hand member.
4. the connector for jointed rod according to claim 3, it is characterized in that: described rising as high as the banks (5) is provided with two altogether on the same circumference of locating shaft (2), and described two rise as high as the banks (5) evenly distribute each other.
5. the connector for jointed rod according to claim 1, it is characterized in that: the screw thread effective length of described external screw thread I (10) and external screw thread II (7) is 7-12 centimetre.
6. the connector for jointed rod according to claim 1 is characterized in that: the alloy steel material of described main shaft (9) employing 40Cr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060965 CN203066889U (en) | 2013-02-04 | 2013-02-04 | Connecting piece used for connecting drill rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060965 CN203066889U (en) | 2013-02-04 | 2013-02-04 | Connecting piece used for connecting drill rods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066889U true CN203066889U (en) | 2013-07-17 |
Family
ID=48765699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320060965 Expired - Fee Related CN203066889U (en) | 2013-02-04 | 2013-02-04 | Connecting piece used for connecting drill rods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510873A (en) * | 2013-09-29 | 2014-01-15 | 中国水电顾问集团昆明勘测设计研究院有限公司 | Connector for prolonging service life of diamond composite drill bit |
-
2013
- 2013-02-04 CN CN 201320060965 patent/CN203066889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510873A (en) * | 2013-09-29 | 2014-01-15 | 中国水电顾问集团昆明勘测设计研究院有限公司 | Connector for prolonging service life of diamond composite drill bit |
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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: 20130717 Termination date: 20140204 |