CN2720078Y - Drill-bit opening mechanism - Google Patents
Drill-bit opening mechanism Download PDFInfo
- Publication number
- CN2720078Y CN2720078Y CN 200420064190 CN200420064190U CN2720078Y CN 2720078 Y CN2720078 Y CN 2720078Y CN 200420064190 CN200420064190 CN 200420064190 CN 200420064190 U CN200420064190 U CN 200420064190U CN 2720078 Y CN2720078 Y CN 2720078Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- hook
- cylindrical shell
- opening mechanism
- axle
- 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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- Earth Drilling (AREA)
Abstract
The utility model provides a drill-bit opening mechanism, composed of an axis, a spring, a steel tube, a bit cover, a barrel, a connecting plate, a support plate, a clasp, a baffle plate, a hook and a cylinder. The barrel is provided with a bit cover, the steel tube is fixed on the bit cover, and the support plate is fixed on the barrel. The upper end of the axis in the barrel is connected with the cylinder and the press cap by passing through the hole of the support plate, the hole of the bit cover and the spring, and the lower end of the axis is connected with the clasp through the connecting plate. The bottom of the clasp is fixed on the baffle plate of the barrel, and the hook fixed on the bottom of the barrel clamps the clasp. The opening mechanism has the advantages of high speed, high efficiency, convenient operation, simple structure, convenient maintenance, etc. during opening.
Description
When technical field the utility model relates to the work of the used drill bit of a kind of rotary drilling rig, be used for the opening mechanism of drill bit, when the drill bit that is adapted to rotary drilling rig especially repeatedly often uses.
Background technology is present, and the form of rotary drilling rig drill bit has several, when the work of rotary drilling rig, a kind of opening mechanism of opening soon will be arranged on the drill bit that it was equipped with, and can make things convenient for the loading and unloading of sand.It is connectors such as the axle composition of boring with spring, leaf chain, spring fixed seat, chain holder, band that the opening mechanism of the used drill bit of existing rotary drilling rig adopts, drill bit is when work, the drill bit bottom takes place often to be not closed completely, cause the sand in the drill bit to drain back in the hole, not only reduce drilling efficiency, but also influenced the use of the normal efficiency of cleannes at the bottom of the hole and machine.
The summary of the invention the purpose of this utility model provides a kind of easy to loading and unloading, opens easily safe and reliable drill bit opening mechanism.
The purpose of this utility model is achieved in that this drill bit opening mechanism is made up of axle, spring, steel pipe, drill bit lid, cylindrical shell, junction plate, base plate, hook, plate washer, crotch, cylinder, the drill bit lid is arranged on the cylindrical shell, steel pipe is fixed on drill bit and covers, base plate is fixed on the cylindrical shell, the hole of base plate is passed in axle upper end in the cylindrical shell, hole, the spring of drill bit lid is connected with gland with cylinder, the lower end of axle connects hook by junction plate, the bottom of hook is fixed on the plate washer of cylindrical shell, and the crotch that is fixed on the cylindrical shell bottom blocks hook.
Perforate links with axle in the middle of the described cylinder, and side perforate and connector link.
The end of described spring is also not tight, polishes.
Described base plate cross sectional shape is fan-shaped, and middle perforate links with axle.
The cross sectional shape of described axle is circular or square, and top perforate and cylinder, connector link, and bottom opening and plate washer, connector link.
Described plate washer cross sectional shape is a T shape.
The cross sectional shape of described hook is a hook-type, the top perforate of hook links with axle, connector, the middle part perforate of hook is with axle, connector links, and the bottom of hook links with crotch mating face, bottom when drill bit creeps into, and the bottom of hook is not when drill bit creeps into and the disengagement of bottom crotch.
The top perforate of described hanger, top cross sectional shape are semicircle; Lower section is shaped as rectangle.
The cross sectional shape of described bottom crotch is a F shape, the top of bottom crotch when drill bit creeps into and the lower engagement face of hook link the welding of the bottom of bottom crotch and cylindrical shell bottom mechanism.
When the utility model is installed, at first small column is welded on the drill bit lid, base plate and two hangers are welded on the cylindrical shell, the top of axle is passed the hole of base plate and the hole of drill bit lid earlier, with spring, cylinder, connector cylinder and axle is linked, and bottom and two junction plates of axle link, the bottom of two junction plates and the top of hook link with connector, the middle part of hook links with connector and two hangers, at last plate washer is welded on the hook, installs very convenient like this.By above installation, finish present embodiment.Installation is very convenient with maintenance, and can repeatedly often use.
Be described further below in conjunction with drawings and Examples.
Description of drawings Fig. 1 is a section of structure of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 2.
Fig. 4 is that the A of Fig. 1 is to view.
Among the figure: 1. drill bit covers; 2. drilling rod; 3. straight pin; 4. gland; 5. cylinder; 6. bolt; 7. nut 8. packing rings; 9. spring; 10 small columns; 11. base plate; 12. axle; 13. hook; 14. plate washer; 15. cylindrical shell; 16. bottom crotch; 17. cylindrical shell bottom mechanism; 18. hanger; 19. junction plate; 20. rectangular steel tube.
Specific embodiment small column (10) is welded on drill bit lid (1), base plate (11) is welded on the cylindrical shell (15) with two hangers (18), after the hole of the hole of base plate (11) and drill bit lid (1) is passed on the top of axle (12) earlier, fix spring (9), after pressing also with cylinder (5), with bolt (6), nut (7), packing ring (8) links cylinder (5) and axle (12), the bottom of axle (12) bolt (6), nut (7), packing ring (8) links with two junction plates (19), the top of the bottom of two junction plates (19) and hook (13) bolt (6), nut (7), packing ring (8) links, the middle part of hook (13) bolt (6), nut (7), packing ring (8) links with two hangers (18), after regulating the contact surface of bottom crotch (16) and hook (13), again plate washer (14) is welded on the hook (13),, install very convenient like this.By above installation, finish present embodiment.
The course of work of the present utility model is: small column (10) is welded on drill bit lid (1), base plate (11) is welded on the cylindrical shell (15) with two hangers (18), hole and drill bit that the top of axle (12) is placed on base plate (11) cover in the hole of (1), with spring (9), bolt (6), nut (7), packing ring (8) links with cylinder (5), the bottom of axle (12) and the top of two junction plates (19) link with connector, the top of the bottom of two junction plates (19) and hook (13) links with connector, and the middle part of hook (13) links with two hangers (18) on connector and the cylindrical shell (15).Drilling rod (2) links by the rectangular steel tube (20) of straight pin (3) with drill bit, when drill bit rotates in construction, whole opening mechanism seals, after drill bit is filled sandy soil, when being discharged at the outside in hole, with gland (4) impacting shaft (12), cylindrical shell bottom mechanism (17) is thrown off with hook (13), thereby finish the course of work of novel opening mechanism.
Claims (5)
1. drill bit opening mechanism, form by axle, spring, steel pipe, drill bit lid, cylindrical shell, junction plate, base plate, hook, plate washer, crotch, cylinder, it is characterized in that: the drill bit lid is arranged on the cylindrical shell, steel pipe is fixed on drill bit and covers, base plate is fixed on the cylindrical shell, the hole of base plate is passed in axle upper end in the cylindrical shell, hole, the spring of drill bit lid is connected with gland with cylinder, the lower end of axle connects hook by junction plate, the bottom of hook is fixed on the plate washer of cylindrical shell, and the crotch that is fixed on the cylindrical shell bottom blocks hook.
2. a kind of drill bit opening mechanism according to claim 1 is characterized in that: the base plate cross sectional shape is a rectangle, top drilling.
3. a kind of drill bit opening mechanism according to claim 1 is characterized in that: shaft section is shaped as circular or square, top perforate, bottom opening.
4. a kind of drill bit opening mechanism according to claim 1, it is characterized in that: hook cross section is shaped as the J hook-type, and the top perforate of hook links with axle, connector, and the middle part perforate and the connector of hook link.
5. a kind of drill bit opening mechanism according to claim 1 is characterized in that: the crotch cross sectional shape is a F shape, the top of crotch when drill bit creeps into and the lower engagement face of hook link the welding of the bottom of crotch and cylindrical shell bottom mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064190 CN2720078Y (en) | 2004-05-18 | 2004-05-18 | Drill-bit opening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064190 CN2720078Y (en) | 2004-05-18 | 2004-05-18 | Drill-bit opening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720078Y true CN2720078Y (en) | 2005-08-24 |
Family
ID=35009039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064190 Expired - Fee Related CN2720078Y (en) | 2004-05-18 | 2004-05-18 | Drill-bit opening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720078Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140888A (en) * | 2010-02-03 | 2011-08-03 | 国家电网公司直流建设分公司 | Excavating drilling machine |
-
2004
- 2004-05-18 CN CN 200420064190 patent/CN2720078Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140888A (en) * | 2010-02-03 | 2011-08-03 | 国家电网公司直流建设分公司 | Excavating drilling machine |
| CN102140888B (en) * | 2010-02-03 | 2013-06-12 | 国家电网公司 | Excavating drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |