CN202866684U - Connection device for helical drill rod and helical drill rod assembly using connection device - Google Patents
Connection device for helical drill rod and helical drill rod assembly using connection device Download PDFInfo
- Publication number
- CN202866684U CN202866684U CN 201220377443 CN201220377443U CN202866684U CN 202866684 U CN202866684 U CN 202866684U CN 201220377443 CN201220377443 CN 201220377443 CN 201220377443 U CN201220377443 U CN 201220377443U CN 202866684 U CN202866684 U CN 202866684U
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- pin shaft
- shaft hole
- hole
- square joint
- rod
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Abstract
The utility model relates to a connection device for a helical drill rod, and a helical drill rod assembly using the connection device. The helical drill rod assembly comprises a first rod body and a second rod body which are connected through the connection device when in use; the connection device comprises an external connector arranged at the upper end of the first rod body and an internal connector arranged at the lower end of the second rod body; a pin shaft hole across a matching surface of the internal connector and the external connector is formed in the matching part of the internal connector and the external connector; a connection pin shaft is penetrated into the pin shaft hole; threaded holes with axes vertical to the axis of the pin shaft hole are formed in the hole walls at the two ends of the pin shaft hole; the span between the two threaded holes is larger than the length of the connection pin shaft; the connection device also comprises limiting screws which are screwed into the corresponding threaded holes respectively when in use so as to limit stop pieces at the two ends of the connection pin shaft. According to the connection device and the helical drill rod assembly, the problem of low structural strength due to configuration of a ring groove in the connection pin shaft in the prior art is solved.
Description
Technical field
The utility model relates to the long-spiral drilling machine accessory, relates in particular to auger stem with linkage and uses the auger stem assembly of this linkage.
Background technology
At present, the auger stem of long-spiral drilling machine is delivered to drill bit with the rig moment of torsion when rig creeps into, the dregs that bit cutting falls along with the rotation of drilling rod by screw lifting to ground, finish and fetch earth, carry when boring, by concrete mixer with concrete along the drilling rod delivered inside to the stake hole the hole at the bottom of, finish the perfusion in a hole.Auger stem is for ease of processing and manufacturing and transportation, length is the fixed length such as 5 meters, 3 meters and 2 meters, need during use the upper and lower end of auger stem is connected successively, therefore can improve the drilling construction efficient of long-spiral drilling machine in the quick and easy syndeton of the upper and lower end design and assembly of auger stem.
Existing syndeton such as Chinese patent CN101644145A disclosed a kind of " novel spiral drill rod ", this auger stem comprises the body of rod and is arranged at the linkage at body of rod two ends, linkage comprises outer six square joints and interior six square joints of working in coordination, the cooperation place of outer six square joints and interior six square joints is provided with the pin shaft hole across the fitting face of inside and outside square joint, be coated with the connection bearing pin in the described pin shaft hole, realize the axial anticreep of inside and outside six square joints by connecting bearing pin.For preventing connecting bearing pin by scurrying out in the pin shaft hole, be provided with annular groove at the middle part that connects bearing pin, the lateral wall of interior six square joints is provided with the screwed hole that arrange and with pin shaft hole communicate corresponding to annular groove, is provided with screw in the screwed hole.During use, interior six square joints and outer six square joints of adjacent two bodies of rod only revolve mutually plug-in mounting, the connection bearing pin that is used for the axial anticreep of the body of rod is arranged in pin shaft hole, screw prevents from connect bearing pin by in pin shaft hole scurry out by screw to the block that connects bearing pin by screwing in the screwed hole and insert in the annular groove that connects bearing pin.But thisly need to offer annular groove at the middle part that connects bearing pin to connecting the position limiting structure of bearing pin, annular groove offer the structural strength that can reduce to connect bearing pin, need to bear the axial shearing force of the larger body of rod and connect bearing pin.In practical operation, often can occur connecting pin and be cut off, and the problem that auger stem comes off occurs, not only affect drilling efficiency, and might cause casualty accident.
Summary of the invention
The purpose of this utility model is to provide a kind of auger stem linkage that can not affect connecting pin axle construction intensity; The purpose of this utility model also comprises the auger stem assembly that uses above-mentioned linkage.
In order to address the above problem, auger stem with the technical scheme of linkage is in the utility model:
The auger stem linkage, comprise outer square joint and the interior square joint of working in coordination, the cooperation place of outer square joint and interior square joint is provided with across interior, the pin shaft hole of the fitting face of outer square joint, be coated with the connection bearing pin in the described pin shaft hole, respectively be provided with the perpendicular screwed hole of axis of an axis and described pin shaft hole on the hole wall at described pin shaft hole two ends, span between described two screwed holes is greater than the length of described connection bearing pin, and linkage also comprises in the screwed hole that screws in respectively correspondence when using with the stop screw spacing to the two ends block of described connection bearing pin.
Described each screwed hole all is arranged on the hole wall of described pin shaft hole near axis one side of six square joints in described.
The technical scheme of auger stem assembly is in the utility model:
The auger stem assembly, comprise first body of rod and second body of rod that link to each other by linkage when using, linkage comprises the outer square joint that is divided into first body of rod upper end and the interior square joint of the second body of rod lower end, the cooperation place of outer square joint and interior square joint is provided with across interior, the pin shaft hole of the fitting face of outer square joint, be coated with the connection bearing pin in the described pin shaft hole, respectively be provided with the perpendicular screwed hole of axis of an axis and described pin shaft hole on the hole wall at described pin shaft hole two ends, span between described two screwed holes is greater than the length of described connection bearing pin, and linkage also comprises in the screwed hole that screws in respectively correspondence when using with the stop screw spacing to the two ends block of described connection bearing pin.
Described each interior six square joint screwed hole all are arranged on the hole wall of described pin shaft hole near axis one side of six square joints in described.
Described interior square joint is integrally formed at the lower end of described second body of rod, and described outer square joint is integrally formed at the upper end of described first body of rod.
The beneficial effects of the utility model are: after the connection bearing pin is threaded onto in corresponding groove and the pin shaft hole, in each, screw in corresponding stop screw in the square joint screwed hole, connect that bearing pin is located between corresponding two stop screws and can not be by scurrying out in the pin shaft hole.Need to not offer annular groove at the connection bearing pin to connecting the spacing of bearing pin, therefore can not have influence on the structural strength that connects bearing pin, and then can guarantee the drilling construction of corresponding rig.
Description of drawings
Fig. 1 is the structural representation of auger stem assembly embodiment in the utility model;
Fig. 2 be A-A among Fig. 1 to sectional view, also be simultaneously in the utility model auger stem with the structural representation of linkage embodiment;
Fig. 3 is the structural representation of first body of rod among Fig. 1.
The specific embodiment
The embodiment of auger stem assembly is shown in Fig. 1 ~ 3: comprise first body of rod 2 and second body of rod 1 that link to each other by linkage when using, linkage comprises outer six square joints 6 that are arranged at first body of rod, 2 upper ends and interior six square joints 5 that are arranged at second body of rod, 1 lower end, in, outer six square joints can only revolve mutually plug-in mounting, the cooperation place of inside and outside six square joints is provided with across interior, the pin shaft hole of the fitting face of outer square joint, be coated with in the pin shaft hole and connect bearing pin 7, pin shaft hole consists of by being arranged at the groove 10 on outer six square joints 6 and the connecting hole with gap 4 that is arranged on interior six square joints 5, the gap of connecting hole 4 and groove complementary fit are coated with connection bearing pin 7 in the pin shaft hole.The two ends of pin shaft hole respectively are provided with the perpendicular interior six square joint screwed holes 8 of axis of an axis and pin shaft hole in the hole wall two ends of axis one side of close interior six square joints 5, span in two between the six square joint screwed holes 8 is greater than the length that connects bearing pin 7, and linkage also comprises in the interior six square joint screwed holes 8 that screw in respectively correspondence when using with the spacing stop screw 3 of two ends block to connection bearing pin 7.Be provided with another linkage between the lower end of first body of rod and the upper end of the corresponding adaptive body of rod, be provided with another linkage between the upper end of second body of rod and the lower end of the corresponding adaptive body of rod.
During use, outer six square joints 6 of first body of rod 2 and interior six square joints 5 of second body of rod 1 are only revolved plug-in mounting, the pin shaft hole 4 of interior six square joints 5 with outside install in the groove on six square joints 6 and connect bearing pin 7, thereby realize the axial anticreep of inside and outside six square joints; Then in inside and outside six square joint screwed holes, screw in stop screw 3, connect bearing pin 7 and be clipped between two stop screws 3, thereby prevent from connecting bearing pin 7 by deviating from the pin shaft hole 4.
In this auger stem assembly embodiment, interior six square joints can also be fixedly installed by welding or flange connection and second body of rod, and certainly outer six square joints also can be fixedly installed by welding or flange connection and first body of rod; Interior six square joint screwed holes also can be arranged on the hole wall of pin shaft hole away from axis one side of interior six square joints; Certainly outer six square joint screwed holes can not established yet; Inside and outside six square joints also all can be other polygon joints such as four directions, five sides.
The embodiment of linkage is shown in Fig. 1 ~ 2: the linkage described in the concrete structure of linkage such as the above-mentioned auger stem assembly embodiment is not described in detail in this.
Claims (5)
1. auger stem linkage, comprise outer square joint and the interior square joint of working in coordination, the cooperation place of outer square joint and interior square joint is provided with across interior, the pin shaft hole of the fitting face of outer square joint, be coated with the connection bearing pin in the described pin shaft hole, it is characterized in that: the perpendicular screwed hole of axis that respectively is provided with an axis and described pin shaft hole on the hole wall at described pin shaft hole two ends, span between described two screwed holes is greater than the length of described connection bearing pin, and linkage also comprises in the screwed hole that screws in respectively correspondence when using with the stop screw spacing to the two ends block of described connection bearing pin.
2. auger stem linkage according to claim 1 is characterized in that: described each screwed hole all is arranged on the hole wall of described pin shaft hole near axis one side of six square joints in described.
3. auger stem assembly, comprise first body of rod and second body of rod that link to each other by linkage when using, linkage comprises the outer square joint that is divided into first body of rod upper end and the interior square joint of the second body of rod lower end, the cooperation place of outer square joint and interior square joint is provided with across interior, the pin shaft hole of the fitting face of outer square joint, be coated with the connection bearing pin in the described pin shaft hole, it is characterized in that: the perpendicular screwed hole of axis that respectively is provided with an axis and described pin shaft hole on the hole wall at described pin shaft hole two ends, span between described two screwed holes is greater than the length of described connection bearing pin, and linkage also comprises in the screwed hole that screws in respectively correspondence when using with the stop screw spacing to the two ends block of described connection bearing pin.
4. auger stem assembly according to claim 3 is characterized in that: described in each six square joint screwed holes all be arranged on the hole wall of described pin shaft hole near axis one side of six square joints in described.
5. according to claim 3 or 4 described auger stem assemblies, it is characterized in that: described interior square joint is integrally formed at the lower end of described second body of rod, and described outer square joint is integrally formed at the upper end of described first body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377443 CN202866684U (en) | 2012-08-01 | 2012-08-01 | Connection device for helical drill rod and helical drill rod assembly using connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377443 CN202866684U (en) | 2012-08-01 | 2012-08-01 | Connection device for helical drill rod and helical drill rod assembly using connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866684U true CN202866684U (en) | 2013-04-10 |
Family
ID=48033410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377443 Expired - Fee Related CN202866684U (en) | 2012-08-01 | 2012-08-01 | Connection device for helical drill rod and helical drill rod assembly using connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866684U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850249A (en) * | 2014-03-25 | 2014-06-11 | 陕西桩鑫建设工程有限公司 | Construction technology for long-spiral cast-in-place pile extruded into rock |
| CN103850657A (en) * | 2014-03-25 | 2014-06-11 | 陕西桩鑫建设工程有限公司 | Long-spiral pile driving drill rod as well as soil clearing device thereof, rod connecting device and rod connecting method |
| CN103953290A (en) * | 2014-05-26 | 2014-07-30 | 贵州大学 | Drill holding reversing drainage device for threaded connection type spiral drill pipe |
| CN109098674A (en) * | 2018-09-01 | 2018-12-28 | 邹城兖矿泰德工贸有限公司 | Spiral combines hollow drill pipe |
-
2012
- 2012-08-01 CN CN 201220377443 patent/CN202866684U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850249A (en) * | 2014-03-25 | 2014-06-11 | 陕西桩鑫建设工程有限公司 | Construction technology for long-spiral cast-in-place pile extruded into rock |
| CN103850657A (en) * | 2014-03-25 | 2014-06-11 | 陕西桩鑫建设工程有限公司 | Long-spiral pile driving drill rod as well as soil clearing device thereof, rod connecting device and rod connecting method |
| CN103850657B (en) * | 2014-03-25 | 2015-12-02 | 陕西桩鑫建设工程有限公司 | A kind of long spire stake driver drilling rod and clear earthenware, extension bar device and extension bar method |
| CN103850249B (en) * | 2014-03-25 | 2015-12-02 | 陕西桩鑫建设工程有限公司 | Long spire is squeezed into rock filling pile construction technology |
| CN103953290A (en) * | 2014-05-26 | 2014-07-30 | 贵州大学 | Drill holding reversing drainage device for threaded connection type spiral drill pipe |
| CN103953290B (en) * | 2014-05-26 | 2016-04-13 | 贵州大学 | One realizes screw connected auger stem and embraces brill reversion withdrawing device |
| CN109098674A (en) * | 2018-09-01 | 2018-12-28 | 邹城兖矿泰德工贸有限公司 | Spiral combines hollow drill pipe |
| CN109098674B (en) * | 2018-09-01 | 2019-11-26 | 邹城兖矿泰德工贸有限公司 | Spiral combines hollow drill pipe |
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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: 20130410 Termination date: 20140801 |
|
| EXPY | Termination of patent right or utility model |