CN203140833U - Fast disassembly and assembly structure between drill chuck and output shaft - Google Patents
Fast disassembly and assembly structure between drill chuck and output shaft Download PDFInfo
- Publication number
- CN203140833U CN203140833U CN 201320203186 CN201320203186U CN203140833U CN 203140833 U CN203140833 U CN 203140833U CN 201320203186 CN201320203186 CN 201320203186 CN 201320203186 U CN201320203186 U CN 201320203186U CN 203140833 U CN203140833 U CN 203140833U
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- CN
- China
- Prior art keywords
- output shaft
- hole
- drill chuck
- connecting hole
- cylinder
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- Expired - Lifetime
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Abstract
The utility model discloses a fast disassembly and assembly structure between a drill chuck and an output shaft, which is easy to disassemble and assemble, and simple to maintain and replace, and comprises the drill chuck (1) and the output shaft (2), wherein the drill chuck (1) is provided with a connecting hole (3) capable of being connected with the output shaft (2) in a sleeved way, a connecting rod (4) which is arranged coaxial with the connecting hole (3) and of which the cross section is a polygon is arranged at one end of the connecting hole (3), the connecting hole (3) is circumferentially provided with at least one radial hole (5) which is communicated with the connecting hole (3), each radial hole (5) is provided with a plurality of spheres (6), the drill chuck (1) is circumferentially provided with an operation ring (7) capable of moving along the axis direction of the connecting hole (3), and the inner surface of the operation ring (7) is provided with a squeezing surface; and the output shaft (2) is provided with a blind hole (8) which is connected with the connecting rod (4) in the sleeved way and of which the cross section is the polygon, and the output shaft (2) is circumferentially provided with a ring-shaped groove (9) capable of being matched with the local parts of the spheres (6) entering into the connecting hole (3).
Description
Technical field
The utility model relates to the electric tool technical field, specifically is fast assembling disassembling structure between a kind of drill chuck and output shaft.
Background technology
Drill chuck and the disassembly and assembly structure between output shaft commonly used are with screw drill chuck and output shaft to be fitted together, and output shaft rotates to drive whole drill chuck and rotates, since not easy to assemble between drill chuck and output shaft, so keep in repair, change comparatively trouble.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of dismounting that is easy to, fast assembling disassembling structure between maintenance, the simple drill chuck of replacing and output shaft.
The technical solution of the utility model is, fast assembling disassembling structure between the utility model drill chuck and output shaft, it comprises drill chuck and output shaft, drill chuck be provided with can with the connecting hole of output shaft socket, the cross section that connecting hole one end is provided with the coaxial setting of connecting hole is polygonal connecting rod, connecting hole is circumferentially with at least one radial hole that communicates with connecting hole, radial hole is provided with a plurality of spheroids that move in hole radially, drill chuck is circumferentially with the operation ring that can move along the connecting hole axis direction, and the operation ring inner surface is provided with for the extruding spheroid compressive plane that moves of hole radially; The cross section that output shaft is provided with the connecting rod socket is described polygonal blind hole, output shaft be circumferentially with can with enter connecting hole in the annular groove that matches of the part of spheroid.
The utility model operation principle is, drill chuck and output shaft are installed together, at first, output shaft inserts in the connecting hole of drill chuck, at this moment, blind hole and connecting rod socket are circumferentially spacing to transmit moment of torsion to realize between drill chuck and the output shaft, then, along connecting hole axis direction move operation ring, compressive plane extruding spheroid is radially moved in the hole, and final, the part of the spheroid of the most close connecting hole inside will snap in annular groove, matching with annular groove in the part that namely enters the spheroid in the connecting hole, thereby realizes that axial limiting in use is separated to prevent drill chuck and output shaft between drill chuck and the output shaft; Drill chuck and output shaft are taken apart, at first, opposite direction move operation ring, cancel the radial pressure that is applied on the spheroid, then output shaft is extracted from connecting hole, in the withdrawal process, spheroid is output an outer surface and oppositely pushes back, thereby realizes the purpose that drill chuck and output shaft are taken apart mutually.
After adopting said structure, the utility model compared with prior art, have the following advantages: owing to need not slack adjuster in the disassembly process, so be easy to dismounting, keep in repair, change simply, in addition, after drill chuck and output shaft are taken apart mutually, the blind hole of output shaft directly instrument such as socket screwdriver realizes other function, has namely realized the multipurpose of output shaft.
As improvement, radial hole is three, and three radial holes circumferentially evenly distribute along connecting hole; Each radial hole is provided with two spheroids, and like this, stressed more even, intensity is higher.
As improvement, compressive plane is formed by connecting in regular turn by first face of cylinder, round table surface, second face of cylinder, first face of cylinder and second face of cylinder are parallel to each other, distance between first face of cylinder and the radial hole is 1/4th sphere diameters so that can provide between first face of cylinder and the radial hole and hold the space that the spheroid part enters, like this, mobile compressive plane is comparatively laborsaving, and action is along sliding nature.
As improvement, polygon is hexagon, and is simple in structure like this, connects reliable.
As improvement, spheroid is steel ball, like this, and the intensity height.
Description of drawings
Fig. 1 is the structural representation after the dismounting of fast assembling disassembling structure between the utility model drill chuck and output shaft.
Fig. 2 be the utility model drill chuck with output shaft between structural representation (spheroid does not also snap in groove) during being connected of fast assembling disassembling structure.
Fig. 3 is that the A-A of fast assembling disassembling structure between the utility model drill chuck and output shaft is to cutaway view.
Shown in the figure, 1, drill chuck, 2, output shaft, 3, connecting hole, 4, connecting rod, 5, radial hole, 6, spheroid, 7, the operation ring, 8, blind hole, 9, groove, 10, first face of cylinder, 11, round table surface, 12, second face of cylinder.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Fast assembling disassembling structure between the utility model drill chuck and output shaft, it comprises drill chuck 1 and output shaft 2, drill chuck 1 be provided with can with the connecting hole 3 of output shaft 2 sockets, the cross section that connecting hole 3 one ends are provided with connecting hole 3 coaxial settings is polygonal connecting rod 4, connecting hole 3 is circumferentially with at least one radial hole 5 that communicates with connecting hole 3, radial hole 5 is provided with a plurality of spheroids 6 that move in hole 5 radially, drill chuck 1 is circumferentially with the operation ring 7 that can move along connecting hole 3 axis directions, and operation ring 7 inner surfaces are provided with for extruding spheroid 6 compressive plane that moves of hole 5 radially; The cross section that output shaft 2 is provided with connecting rod 4 sockets is described polygonal blind hole 8, output shaft 2 be circumferentially with can with enter connecting hole 3 in the annular groove 9 that matches of the part of spheroid 6.
Compressive plane is formed by connecting in regular turn by first face of cylinder 10, round table surface 11, second face of cylinder 12, first face of cylinder 10 and second face of cylinder 12 are parallel to each other, and the distance between first face of cylinder 10 and the radial hole 5 is 1/4th spheroids, 6 diameters so that can provide between first face of cylinder 10 and the radial hole 5 and hold the space that spheroid 6 parts enter; In the ratio, compressive plane is provided by ring bush, ring bush and operation ring 7 sockets and close-fitting.
Polygon is hexagon.
Spheroid 6 is steel ball.
Claims (5)
1. fast assembling disassembling structure between a drill chuck and output shaft, it comprises drill chuck (1) and output shaft (2), it is characterized in that, drill chuck (1) be provided with can with the connecting hole (3) of output shaft (2) socket, the cross section that connecting hole (3) one ends are provided with the coaxial setting of connecting hole (3) is polygonal connecting rod (4), connecting hole (3) is circumferentially with at least one radial hole (5) that communicates with connecting hole (3), radial hole (5) is provided with radially hole (5) mobile a plurality of spheroids (6), drill chuck (1) is circumferentially with the operation ring (7) that can move along connecting hole (3) axis direction, and operation ring (7) inner surface is provided with for extruding spheroid (6) hole (5) mobile compressive plane radially; The cross section that output shaft (2) is provided with connecting rod (4) socket is described polygonal blind hole (8), output shaft (2) be circumferentially with can with enter connecting hole (3) in the annular groove (9) that matches of the part of spheroid (6).
2. fast assembling disassembling structure between drill chuck according to claim 1 and output shaft is characterized in that, radial hole (5) is three, and three radial holes (5) circumferentially evenly distribute along connecting hole (3); Each radial hole (5) is provided with two spheroids (6).
3. fast assembling disassembling structure between drill chuck according to claim 1 and output shaft, it is characterized in that, compressive plane is formed by connecting in regular turn by first face of cylinder (10), round table surface (11), second face of cylinder (12), first face of cylinder (10) and second face of cylinder (12) are parallel to each other, and the distance between first face of cylinder (10) and the radial hole (5) is 1/4th spheroids (6) diameter so that can provide between first face of cylinder (10) and the radial hole (5) and hold the space that spheroid (6) part enters.
4. fast assembling disassembling structure between drill chuck according to claim 1 and output shaft is characterized in that, polygon is hexagon.
5. fast assembling disassembling structure between drill chuck according to claim 1 and output shaft is characterized in that, spheroid (6) is steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203186 CN203140833U (en) | 2013-04-19 | 2013-04-19 | Fast disassembly and assembly structure between drill chuck and output shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203186 CN203140833U (en) | 2013-04-19 | 2013-04-19 | Fast disassembly and assembly structure between drill chuck and output shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140833U true CN203140833U (en) | 2013-08-21 |
Family
ID=48968389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320203186 Expired - Lifetime CN203140833U (en) | 2013-04-19 | 2013-04-19 | Fast disassembly and assembly structure between drill chuck and output shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203140833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511618A (en) * | 2013-09-30 | 2015-04-15 | 南京德朔实业有限公司 | Electric drill |
| CN111256963A (en) * | 2019-12-23 | 2020-06-09 | 宁波拓普汽车电子有限公司 | Spherical hinge torque test tool |
-
2013
- 2013-04-19 CN CN 201320203186 patent/CN203140833U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511618A (en) * | 2013-09-30 | 2015-04-15 | 南京德朔实业有限公司 | Electric drill |
| CN111256963A (en) * | 2019-12-23 | 2020-06-09 | 宁波拓普汽车电子有限公司 | Spherical hinge torque test tool |
| CN111256963B (en) * | 2019-12-23 | 2022-05-27 | 宁波拓普汽车电子有限公司 | Spherical hinge torque test tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |