CN201214989Y - Anti-releasing device for expansion link - Google Patents
Anti-releasing device for expansion link Download PDFInfo
- Publication number
- CN201214989Y CN201214989Y CNU2008200249048U CN200820024904U CN201214989Y CN 201214989 Y CN201214989 Y CN 201214989Y CN U2008200249048 U CNU2008200249048 U CN U2008200249048U CN 200820024904 U CN200820024904 U CN 200820024904U CN 201214989 Y CN201214989 Y CN 201214989Y
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- CN
- China
- Prior art keywords
- drilling rod
- drill rod
- layer
- layer drill
- rod
- 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 disengaging prevention device for a retractable rod, which comprises a center drill rod; wherein, the center drill rod comprises drill rod top parts and drill rod parts. A forth layer drill rod, a third layer drill rod, a second layer drill rod and a first layer drill rod are sequentially arranged at the external part of each of the drill rod part from the inside to the outside, and the forth layer drill rod, the third layer drill rod, the second layer drill rod and the first drill rod can slide correspondingly. Each of the layer drill rods limit mutually through limiting blocks. The first layer drill rod near the end part of the drill rod top part is provided with an annulus baffle. The baffle is fixedly connected with the first layer drill rod, and has a smaller diameter of the internal hole than the external dimensions of the second layer drill rod, the third layer drill rod and the forth layer drill rods, and can prevent the second layer drill rod, the third layer drill rod and the forth layer drill rod from disengaging upwards from the outermost layer drill rod top part. The disengaging prevention device for a retractable rod solves the problems that the drill rod disengages during using to result in the mechanical accidents and operation stopping, improves the safety during the working of a drilling machine, guarantees the high working efficiency of the drilling machine, and reduces the service maintenance cost.
Description
Technical field
The utility model relates to a kind of telescopic link anti-release apparatus of rotary drilling rig, can be widely used in the rotary drilling rig industry.
Background technology
At present, inside each layer drilling rod of the jackrod structure of the rotary drilling rig of selling on the market do not have axial direction positioning device, when drilling rod release not exclusively or during operate miss, make progress during inner each layer drilling rod indentation in the time of can causing drilling rod to promote, the accident that the innermost layer drilling rod was deviate from from the bottom when drilling rod fell takes place, in case appearance can cause damaging the loss of rig, bury drills bar, machine stoppage, has very big potential safety hazard.
Summary of the invention
Problem to be solved in the utility model is the deficiency that overcomes above-mentioned technology, provides a kind of safe in utilization, can prevent the telescopic link anti-release apparatus that drilling rod was deviate from easily when telescopic drill rod used.
For addressing the above problem, the utility model by the following technical solutions:
A kind of telescopic link anti-release apparatus, comprise the center drilling rod, this center drilling rod comprises drilling rod top, drilling rod portion, be provided with the 4th layer of drilling rod that can slide relatively, the 3rd layer of drilling rod, second layer drilling rod, first floor drilling rod from inside to outside successively in the outside of drilling rod portion, be provided with several limited blocks between each layer drilling rod ringwise, each layer drilling rod is spacing mutually by limited block, it is characterized in that: described first floor drilling rod is provided with annular baffle plate near the end at drilling rod top, and described baffle plate is fixedlyed connected with the first floor drilling rod.
Below be the utility model for further improvement of these options:
Described baffle plate is provided with central through hole, and the drilling rod top of described center drilling rod is stretched out from central through hole and is connected with the lifting wire rope.
The position at the close drilling rod top of described drilling rod portion is with embedded baffle ring, and the external diameter of this embedded baffle ring is greater than the internal diameter of limited block between the 4th layer of drilling rod and the center drilling rod.
The position at the close drilling rod top of described drilling rod portion is provided with circlip groove, is equipped with on this circlip groove and is used for preventing the back-up ring that embedded baffle ring is deviate from.
Described back-up ring is made up of two semicircular catch, and these two semicircular catch pass through bolt.
During lifting, outermost layer drilling rod transfixion, the rig boom hoist cable, wire rope drives outer drilling rod withdrawal then successively by the center drilling rod of the bearing pin lifting innermost layer of drilling rod head; When transferring drilling rod, the layer 2-3 drilling rod falls to stretching out under action of gravity from outside to inside successively; Between outermost layer drilling rod top and slew gear, be connected and increase a circular baffle plate by bolt, this circular baffle plate diameter of bore is littler than the appearance and size of layer 2-4 drilling rod, can stop that inner layer 2-4 drilling rod makes progress from outermost layer drilling rod top, at innermost layer drilling rod top surface, with the fixing embedded baffle ring of two semicircular ring, this baffle ring external diameter is bigger than the 4th layer of drill pipe bore diameter, stops that the innermost layer drilling rod deviates from from the 4th layer of drilling rod bottom downwards.More than two kinds of structures all can the assembling use and the maintenance of original drilling rod do not impacted, improved the drilling rod functional performance.
The invention solves drilling rod use drilling rod and deviate to cause the problem of mechanical accident and shut-down, improved the safety in the rig course of work, guaranteed the efficient work rate of rig, reduced the services and repairs cost.
Below in conjunction with drawings and Examples the utility model is further described:
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Accompanying drawing 2 is that B-B in the accompanying drawing 1 is to sectional view;
Accompanying drawing 3 is the structural representation of the 5th drilling rod among the utility model embodiment;
Accompanying drawing 4 is the structural representation of baffle ring among the utility model embodiment;
Accompanying drawing 5 is the structural representation of baffle plate among the utility model embodiment;
Accompanying drawing 6 is the structural representation when expansion link stretches among the utility model embodiment.
Among the figure: 1-baffle plate, 2-first floor drilling rod, 3-second layer drilling rod, the 3rd layer of drilling rod of 4-, the 4th layer of drilling rod of 5-, 6-center drilling rod, the embedded baffle ring of 7-, 8-back-up ring, 9-drilling rod crash roll, 10-drilling rod pallet, 11-drilling rod bottom, 12-limited block, 13-drilling rod top, 14-bolt, 15-circlip groove, 16-drilling rod portion, 17-wire rope, 18-central through hole, 19-movable tray, 20-damping spring.
The specific embodiment
Embodiment, as shown in Figure 1, a kind of telescopic link anti-release apparatus, comprise center drilling rod 6, this center drilling rod 6 comprises drilling rod top 13, drilling rod portion 16 and drilling rod bottom 11, be provided with the 4th layer of drilling rod 5 that can slide relatively from inside to outside successively in the outside of drilling rod portion 16, the 3rd layer of drilling rod 4, second layer drilling rod 3, first floor drilling rod 2, be provided with between drilling rod portion 16 and the drilling rod bottom 11 and be used for drilling rod pallet 10 that each layer drilling rod supported, drilling rod portion 16 is socketed with the damping spring 20 that each layer drilling rod cushioned near the position of drilling rod pallet 10, be provided with the movable tray 19 that can slide up and down along center drilling rod 6 between damping spring 20 and each layer drilling rod, the outside of described first floor drilling rod 2 is provided with drilling rod crash roll 9 near an end of drilling rod pallet 10, described first floor drilling rod 2 is provided with the baffle plate 1 of annular near the end at drilling rod top 13, can stop that inner layer 2-4 drilling rod makes progress from outermost layer drilling rod top, described baffle plate 1 is fixedlyed connected with first floor drilling rod 2, described drilling rod portion 16 is with embedded baffle ring 7 near the position at drilling rod tops 13, the external diameter of this embedded baffle ring 7 is greater than the internal diameter of limited block between the 4th layer of drilling rod 5 and the center drilling rod 6, as shown in Figure 2, be provided with several limited blocks 12 between each layer drilling rod ringwise, each layer drilling rod is spacing mutually by limited block 12, as shown in Figure 3, described drilling rod portion 16 is provided with circlip groove 15 near the position at drilling rod tops 13, as shown in Figure 4, be equipped with on this circlip groove 15 and be used for preventing the back-up ring 8 that embedded baffle ring 7 is deviate from, described back-up ring 8 is made up of two semicircular catch, these two semicircular catch are fixing by bolt 14, as shown in Figure 5, described baffle plate 1 is provided with central through hole 18, as shown in Figure 6, the drilling rod top 13 of described center drilling rod 6 is stretched out from central through hole 18 and is connected with lifting wire rope 17, when promoting work, first floor drilling rod 2 transfixions, rig boom hoist cable 17, wire rope 17 promotes center drilling rod 6 by the bearing pin of drilling rod head, drives outer drilling rod withdrawal then successively; When transferring drilling rod, whole outer four layers of drilling rod mainly rely on the support of the drilling rod pallet 10 and the movable tray 19 of innermost layer center drilling rod 6, fall to stretching out successively from outside to inside under action of gravity.
Claims (5)
1, a kind of telescopic link anti-release apparatus, comprise center drilling rod (6), this center drilling rod (6) comprises drilling rod top (13), drilling rod portion (16), be provided with the 4th layer of drilling rod (5), the 3rd layer of drilling rod (4), second layer drilling rod (3), the first floor drilling rod (2) that can slide relatively from inside to outside successively in the outside of drilling rod portion (16), be provided with several limited blocks (12) between each layer drilling rod, it is characterized in that: the end of described first floor drilling rod (2) is provided with the baffle plate (1) of annular, and described baffle plate (1) is fixedlyed connected with first floor drilling rod (2).
2, a kind of telescopic link anti-release apparatus according to claim 1 is characterized in that: described baffle plate (1) is provided with central through hole (18).
3, a kind of telescopic link anti-release apparatus according to claim 1 and 2, it is characterized in that: described drilling rod portion (16) is with embedded baffle ring (7) near the position at drilling rod top (13), and the external diameter of this embedded baffle ring (7) is greater than the internal diameter of limited block between the 4th layer of drilling rod (5) and the center drilling rod (6).
4, a kind of telescopic link anti-release apparatus according to claim 3, it is characterized in that: described drilling rod portion (16) is provided with circlip groove (15) near the position at drilling rod top (13), is equipped with on this circlip groove (15) and is used for preventing the back-up ring (8) that embedded baffle ring (7) is deviate from.
5, a kind of telescopic link anti-release apparatus according to claim 4 is characterized in that: described back-up ring (8) is made up of two semicircular catch, and these two semicircular catch are fixing by bolt (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200249048U CN201214989Y (en) | 2008-07-04 | 2008-07-04 | Anti-releasing device for expansion link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200249048U CN201214989Y (en) | 2008-07-04 | 2008-07-04 | Anti-releasing device for expansion link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201214989Y true CN201214989Y (en) | 2009-04-01 |
Family
ID=40520193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200249048U Expired - Fee Related CN201214989Y (en) | 2008-07-04 | 2008-07-04 | Anti-releasing device for expansion link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201214989Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604494A (en) * | 2015-12-23 | 2016-05-25 | 徐玉杰 | Telescopic drill pipe and mixing pile machine with same |
| CN109268007A (en) * | 2018-09-04 | 2019-01-25 | 徐志华 | A kind of non-rotating crusher jackrod structure for exploitation of mineral resources |
-
2008
- 2008-07-04 CN CNU2008200249048U patent/CN201214989Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604494A (en) * | 2015-12-23 | 2016-05-25 | 徐玉杰 | Telescopic drill pipe and mixing pile machine with same |
| CN105604494B (en) * | 2015-12-23 | 2018-06-29 | 徐玉杰 | A kind of telescopic drill rod and the mixing pile machine with telescopic drill rod |
| CN109268007A (en) * | 2018-09-04 | 2019-01-25 | 徐志华 | A kind of non-rotating crusher jackrod structure for exploitation of mineral resources |
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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: 20090401 Termination date: 20130704 |