CN104874825A - Drilling device - Google Patents
Drilling device Download PDFInfo
- Publication number
- CN104874825A CN104874825A CN201510326099.9A CN201510326099A CN104874825A CN 104874825 A CN104874825 A CN 104874825A CN 201510326099 A CN201510326099 A CN 201510326099A CN 104874825 A CN104874825 A CN 104874825A
- Authority
- CN
- China
- Prior art keywords
- transmission cylinder
- blind hole
- end wall
- cylindrical portion
- shell portion
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
- B23B31/1072—Retention by axially or circumferentially oriented cylindrical elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/005—Cylindrical shanks of tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A drilling device comprises a casing (9) and a drive shaft (8) located in the casing (9), wherein a blind hole with key grooves (81) is formed in the lower end of the drive shaft (8), the outer side of a cylinder part (62) of a transmission cylinder (6) is in sliding fit with the key grooves (81) of the blind hole, and an inner spline is arranged on the inner side of the cylinder part (62) of the transmission cylinder (6) and used for being matched with an outer spline on the outer side of a radial expansion part (71) of a drill rod (7).
Description
Technical field
The present invention relates to boring field, especially a kind of drilling equipment with drill bit.
Background technology
With the drilling equipment of drill bit, its drill bit is removable often.Complicated manual operation is often needed in bit change-over process.This easily reduces operating efficiency, and may produce construction accident when misoperation.
And simplify in some device of replacement operation flow process for some, due to factors such as switching impulse power, its design of part easily damages, and causes shorten service life.
Summary of the invention
The present invention aims to provide a kind of drilling equipment, and it can overcome the problems referred to above.
According to the present invention, a kind of drilling equipment, comprise housing and be positioned at the driving shaft of housing, the lower end of described driving shaft is provided with the blind hole with keyway, be slidably matched with the keyway of described blind hole outside the shell portion of transmission cylinder, internal spline is provided with in order to coordinate with the external splines outside the radial enlargement of drilling rod inside the described shell portion of described transmission cylinder, described transmission cylinder the portion integral formula of described shell portion be provided with outstanding cylindrical portion in order to threaded engagement side engagement in the lower end cylindrical portion of described housing and in the lower end wall of the screw shell be shifted up and down, thus described transmission cylinder is shifted up and down in described blind hole, top pressure spring is provided with thus by described transmission cylinder biased downward between the end wall of the perforate arranged in the top institute integral type of the described shell portion of described transmission cylinder and the inner end wall of described blind hole, the downside of the described shell portion of described transmission cylinder is provided with location shoulder in order to engage with the stopper section, location of the lower end being arranged on described keyway, the multiple radial expansion alignment pins arranged in described end wall can extend out to carry out axial location with the circumferential detent engagement in the epirelief cylindrical portion of the described drilling rod extend in described perforate thus to described drilling rod in the perforate of end wall under the effect of biased element, and described epirelief cylindrical portion and described radial enlargement adjoin and diameter is less than described radial enlargement.
By the present invention, be slowly shifted up and down owing to employing screw shell, thus can by transmission cylinder relative to drilling rod slowly movement, the most flexible alignment pin is slowly positioned in circumferential locating slot, thus avoids excess impact and cause shape and structure impaired.Due to the design feature of keyway and top pressure spring, whole drilling rod and transmission cylinder can float in certain axial range, and the axial load in boring procedure can be provided by epirelief cylindrical portion (72) and the effect of blind hole inwall or be offset; Circumferential load is then by keyway and spline structure carrying.Whole apparatus structure is simple, easy to operate, uses reliable.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of drilling equipment of the present invention.
Detailed description of the invention
By reference to the accompanying drawings 1, detailed explaination is made to the present invention.
According to embodiment, a kind of drilling equipment, comprise housing 9 and be positioned at the driving shaft 8 of housing 9, the lower end of described driving shaft 8 is provided with the blind hole with keyway 81, be slidably matched with the keyway 81 of described blind hole outside the shell portion 62 of transmission cylinder 6, internal spline is provided with in order to coordinate with the external splines outside the radial enlargement 71 of drilling rod 7 inside the described shell portion 62 of described transmission cylinder 6, described transmission cylinder 6 the portion integral formula of described shell portion 62 be provided with outstanding cylindrical portion 61 in order to threaded engagement side engagement in the lower end cylindrical portion 91 of described housing 9 and in the lower end wall 51 of the screw shell 5 be shifted up and down, thus described transmission cylinder 6 is shifted up and down in described blind hole, top pressure spring 4 is provided with thus by described transmission cylinder 6 biased downward between the end wall 63 of the perforate arranged in the top institute integral type of the described shell portion 62 of described transmission cylinder 6 and the inner end wall of described blind hole, the downside of the described shell portion 62 of described transmission cylinder 6 is provided with location shoulder 620 in order to engage with the stopper section, location 810 of the lower end being arranged on described keyway 81, the multiple radial expansion alignment pins 631 arranged in described end wall 63 can extend out to carry out axial location with the circumferential detent engagement in the epirelief cylindrical portion 72 of the described drilling rod 7 extend in described perforate thus to described drilling rod 7 in the perforate of end wall 63 under the effect of biased element, and described epirelief cylindrical portion 72 is adjoined with described radial enlargement 71 and diameter is less than described radial enlargement 71.
Alternatively, wherein, the end of described radial expansion alignment pin 631 is provided with and skids off inclined-plane to coordinate with the inclined surface of described circumferential locating slot thus can skid off from described circumferential locating slot.
Alternatively, wherein, the upper end of described epirelief cylindrical portion 72 is provided with inclined plane part 720 in order to lead when engaging with described radial expansion alignment pin 631.
During use, original state is that screw shell 5 is at upper position, thus transmission cylinder 6 and top pressure spring 4 are operated in compression position, when drilling rod 7 installed by needs, inserted by drilling rod 7, make upper end withstand on blind hole upper wall, then turn screw shell 5 makes it slowly move down, transmission cylinder 6 slowly moves down under the effect of top pressure spring 4 and flexible alignment pin 631 slowly stretches in circumferential locating slot, thus realizes drilling rod installation; When needs unload drilling rod 7, move on screw shell 5 turn is slow, thus make transmission cylinder 6 and top pressure spring 4 be in compression position gradually, simultaneous retractable alignment pin 631 slowly skids off circumferential locating slot, thus is unloaded by drilling rod.
Above embodiment is just for explanatory information of the present invention, and the scope of not intended to be limiting the claims in the present invention.
Claims (3)
1. a drilling equipment, comprise housing (9) and be positioned at the driving shaft (8) of housing (9), the lower end of described driving shaft (8) is provided with the blind hole with keyway (81), shell portion (62) outside of transmission cylinder (6) is slidably matched with the keyway (81) of described blind hole, described shell portion (62) inner side of described transmission cylinder 6 is provided with internal spline in order to coordinate with the external splines outside the radial enlargement (71) of drilling rod (7), described transmission cylinder (6) is provided with outstanding cylindrical portion (61) in order to and that be up and down the shifted interior side engagement of the lower end wall (51) of screw shell (5) upper in the lower end cylindrical portion (91) of described housing (9) with threaded engagement in the portion integral formula of described shell portion (62), thus described transmission cylinder (6) is shifted up and down in described blind hole, top pressure spring (4) is provided with thus by described transmission cylinder (6) biased downward between the end wall (63) of the perforate arranged in the top institute integral type of the described shell portion (62) of described transmission cylinder (6) and the inner end wall of described blind hole, the downside of the described shell portion (62) of described transmission cylinder (6) is provided with location shoulder (620) in order to engage with the stopper section, location (810) of the lower end being arranged on described keyway (81), the multiple radial expansion alignment pins (631) arranged in described end wall (63) can extend out to carry out axial location with the circumferential detent engagement in the epirelief cylindrical portion (72) of the described drilling rod (7) extend in described perforate thus to described drilling rod (7) in the perforate of end wall (63) under the effect of biased element, and described epirelief cylindrical portion (72) and described radial enlargement (71) are adjoined and diameter is less than described radial enlargement (71).
2. a kind of drilling equipment as claimed in claim 1, wherein, the end of described radial expansion alignment pin (631) is provided with and skids off inclined-plane to coordinate with the inclined surface of described circumferential locating slot thus can skid off from described circumferential locating slot.
3. a kind of drilling equipment as claimed in claim 1 or 2, wherein, the upper end of described epirelief cylindrical portion (72) is provided with inclined plane part (720) in order to lead when engaging with described radial expansion alignment pin (631).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510326099.9A CN104874825A (en) | 2015-06-15 | 2015-06-15 | Drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510326099.9A CN104874825A (en) | 2015-06-15 | 2015-06-15 | Drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104874825A true CN104874825A (en) | 2015-09-02 |
Family
ID=53942646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510326099.9A Withdrawn CN104874825A (en) | 2015-06-15 | 2015-06-15 | Drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104874825A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB889094A (en) * | 1960-03-09 | 1962-02-07 | Edward Ethan Allen | Coupling for driving a machine |
| GB2174934A (en) * | 1985-05-08 | 1986-11-19 | Bosch Gmbh Robert | Toolholder |
| DE20107998U1 (en) * | 2001-05-11 | 2001-10-11 | BDS Maschinen GmbH, 41063 Mönchengladbach | Chuck for a tool, especially a milling or drilling tool |
| CN1575217A (en) * | 2001-10-27 | 2005-02-02 | 技术服务团队有限公司 | Drill assembly |
| CN1879992A (en) * | 2005-06-15 | 2006-12-20 | 罗姆股份有限公司 | Drilling device |
| US20090026718A1 (en) * | 2007-07-27 | 2009-01-29 | Credo Technology Corporation | Toolless bitholder for spiral saws |
| CN104526004A (en) * | 2014-12-23 | 2015-04-22 | 周大胜 | Movable type hole drilling device |
-
2015
- 2015-06-15 CN CN201510326099.9A patent/CN104874825A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB889094A (en) * | 1960-03-09 | 1962-02-07 | Edward Ethan Allen | Coupling for driving a machine |
| GB2174934A (en) * | 1985-05-08 | 1986-11-19 | Bosch Gmbh Robert | Toolholder |
| DE20107998U1 (en) * | 2001-05-11 | 2001-10-11 | BDS Maschinen GmbH, 41063 Mönchengladbach | Chuck for a tool, especially a milling or drilling tool |
| CN1575217A (en) * | 2001-10-27 | 2005-02-02 | 技术服务团队有限公司 | Drill assembly |
| CN1879992A (en) * | 2005-06-15 | 2006-12-20 | 罗姆股份有限公司 | Drilling device |
| US20090026718A1 (en) * | 2007-07-27 | 2009-01-29 | Credo Technology Corporation | Toolless bitholder for spiral saws |
| CN104526004A (en) * | 2014-12-23 | 2015-04-22 | 周大胜 | Movable type hole drilling device |
Non-Patent Citations (3)
| Title |
|---|
| 于信伟等: "《机械制造工程学》", 31 January 2012 * |
| 凌智勇等: "《组合机床操作工》", 31 October 2004 * |
| 吴宗泽等: "《机械设计》", 31 January 2009 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150902 |
|
| WW01 | Invention patent application withdrawn after publication |