CN1145976A - Chuck for rock drill - Google Patents
Chuck for rock drill Download PDFInfo
- Publication number
- CN1145976A CN1145976A CN 95115179 CN95115179A CN1145976A CN 1145976 A CN1145976 A CN 1145976A CN 95115179 CN95115179 CN 95115179 CN 95115179 A CN95115179 A CN 95115179A CN 1145976 A CN1145976 A CN 1145976A
- Authority
- CN
- China
- Prior art keywords
- brake lining
- pricker
- housing
- turnover
- mouth
- 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.)
- Granted
Links
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- Bending Of Plates, Rods, And Pipes (AREA)
- Earth Drilling (AREA)
Abstract
The chuck consists of casing an gate plate and there is gate plate positioner. It has simple strucrure, and this makes manufacture and use easy and makes drill draw safely.
Description
The present invention relates to a kind of hammer drill device, especially a kind of pricker card of forming by housing, brake lining.
Must pull out the pricker operation in the hammer drill work, must be furnished with the pricker card device.The shoulder diameter of pricker is greater than bit shank and pricker body.The pricker card structure should be convenient to load and unload pricker, blocks the outer pricker body of pricker shoulder again.And present and the supporting pricker card of hammer drill, it all is convertible strong elastic location pricker card, the pricker card of 7655 pusher leg drills of producing as Shenyang Pneumatic Tools Factory and the pricker card on the YT27 type hammer drill, it is long to change 90 ° of strokes during the card pricker, operation is painstaking, and the workman pricker card accidentally often takes place is pounded the hand accident; Pricker is stuck in has only two tie points to bear pulling force on the hammer drill; And complicated integral structure, anufacturability is poor.
Task of the present invention provides a kind of chuck for rock drill, and its compact conformation connects succinctly, make easily, and handling safety, the card pricker is quick, firm stable.
For solving above-mentioned task, the solution that the present invention adopts is: a kind of hammer drill brake lining formula pricker card, it is made up of housing and brake lining.Housing divides functional parts such as cooperating step, terminal pad, inner chamber, brake lining groove, spring eye.Cooperate step to cooperate, and can realize bit shank spacer (bearing) directly spacing with rock drilling head endoporus; Be furnished with some bolts hole on the circumference of terminal pad, can pierce into bolt housing is connected with the rock drilling head; Intracavity diameter is a bit larger tham the pricker shoulder, can make the turnover of pricker shoulder; Brake lining groove and axis are perpendicular, and its length and width height is adapted to the flexible motion of brake lining, and its axial distance of getting should be a bit larger tham pricker and overwhelm back pricker shoulder by card face institute direct in-position distance, in case the pricker card bears hammer drill piston hitting power; Spring eye communicates with the brake lining groove, and voltage supply piece and spring are imbedded usefulness.The cooperation step of housing can be independent, but preferably with the housing one.Spring eye is two of symmetry preferably, but also desirable one.The realization of spring pressure can be a connecting bolt, also can be top-pressure part.Brake lining has Ka Qiankou, turnover pricker mouth, and divides spigot surface, pushing face, locating surface and stress surface; With the contacted locating surface of briquetting, have a shallow grooves consistent, and communicate with the two dark concave surfaces that guarantee the determining deviation that inward and outward card channel can be opened with the direction of motion.Be pressed into a dark concave surface of brake lining when the briquetting that is subjected to elastic force after, an end of brake lining obtains spacing, has guaranteed enabling of Ka Qiankou or turnover pricker mouth simultaneously; When corresponding external force pushing acted on the other end pushing face of brake lining, briquetting can guarantee the spacing of the other end equally by being pressed into another dark concave surface from shallow grooves, and turnover pricker mouth or card pricker mouth can be enabled.
This design is compared with traditional convertible strong elastic location pricker card, has safety (not hindering finger); The brake lining housing of packing into; Fast: the brake lining line of motion is short out; Laborsaving: briquetting is little to the active force of movement parts; Firmly: pricker card globality is strong, is connected with hammer drill reliably; Stable: stress surface is the plane, press and be pressed into soon behind the dark concave surface that polarization is good, to pull out pricker distribution of forces face big evenly directly; Good manufacturability: pricker card shape rule, and directly be connected with the hammer drill end surface, the structure of rock drilling head of having simplified standard has been improved the processing technology of rock drilling head; Pricker card compact overall structure connects succinct.In addition, because of the housing inner chamber in when work, be close to sealing, so the press water in the hammer drill can cool off hammer drill foremost and can enter the housing inner chamber and be unlikely to outwards to splash, thereby the cooling performance that has improved hammer drill with improve working conditions.
Description of drawings:
Phantom when Fig. 1 is the present embodiment user mode.
Fig. 2 is the elevation of brake lining in the present embodiment (locating surface).
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.Present embodiment is made up of housing (4), brake lining (5).Cooperation step (9), terminal pad (8), inner chamber (6), brake lining groove (7) and spring eye are arranged on the housing (4).The yellow hole of bullet communicates with brake lining groove (7), the briquetting of packing into successively (3), and spring (2) and top-pressure part (1) are as the positioner of brake lining (5).The length of brake lining (5) has Ka Qiankou (12) and turnover pricker mouth (13) greater than brake lining groove (7), and Ka Qiankou (12) diameter is less than turnover pricker mouth (13), and turnover pricker mouth (13) diameter equals the diameter of inner chamber (6).Brake lining (5) divides spigot surface, pushing face, locating surface and stress surface, with the contacted locating surface of briquetting (3), two edges all have a shallow grooves (11) consistent with the direction of motion, and communicate with the two dark concave surfaces (10) that guarantee the determining deviation that turnover pricker mouth (13) can be opened.Brake lining (5) inserts brake lining groove (7), becomes an integral body with housing (4).
Claims (3)
1, a kind of chuck for rock drill is characterized in that, it is made up of housing (4) and brake lining (5); The positioner that brake lining (5) are arranged on the housing (4); Brake lining (5) inserts brake lining groove (7), becomes an integral body with housing (4), under corresponding pushing force effect, can carry out the rectilinear motion of limited distance.
2, pricker card according to claim 1 is characterized in that: cooperation step (9), terminal pad (8) are arranged, inner chamber (6), brake lining groove (7) and spring eye on the housing (4); Spring eye communicates with brake lining groove (7), and the briquetting of packing into successively (3), spring (2) and top-pressure part (1) are as the positioner of brake lining (5).
3, pricker card according to claim 1 is characterized in that: brake lining (5) has Ka Qiankou (12) and turnover pricker mouth (13), and Ka Qiankou (12) diameter is less than turnover pricker mouth (13), and turnover pricker mouth (13) diameter equals the diameter of inner chamber (6); Brake lining (5) divides spigot surface, pushing face, locating surface and stress surface, with the contacted locating surface of briquetting (3), two edges all have a shallow grooves (11) consistent with the direction of motion, and communicate with the two dark concave surfaces (10) that guarantee the determining deviation that turnover pricker mouth (13) can be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115179A CN1050646C (en) | 1995-09-18 | 1995-09-18 | Chuck for rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115179A CN1050646C (en) | 1995-09-18 | 1995-09-18 | Chuck for rock drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1145976A true CN1145976A (en) | 1997-03-26 |
| CN1050646C CN1050646C (en) | 2000-03-22 |
Family
ID=5080419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95115179A Expired - Fee Related CN1050646C (en) | 1995-09-18 | 1995-09-18 | Chuck for rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050646C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889060A (en) * | 2011-07-22 | 2013-01-23 | 深圳市普隆重工有限公司 | Drill clamp mechanism and jackdrill |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2385349A (en) * | 1944-02-02 | 1945-09-25 | Sullivan Machinery Co | Chuck mechanism |
| US2400206A (en) * | 1944-04-20 | 1946-05-14 | Chicago Pneumatic Tool Co | Tool retainer |
-
1995
- 1995-09-18 CN CN95115179A patent/CN1050646C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889060A (en) * | 2011-07-22 | 2013-01-23 | 深圳市普隆重工有限公司 | Drill clamp mechanism and jackdrill |
| CN102889060B (en) * | 2011-07-22 | 2015-05-20 | 深圳市普隆重工有限公司 | Drill clamp mechanism and jackdrill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1050646C (en) | 2000-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |