CN201220347Y - Shaft end center hole stacking structure - Google Patents
Shaft end center hole stacking structure Download PDFInfo
- Publication number
- CN201220347Y CN201220347Y CNU2008200403322U CN200820040332U CN201220347Y CN 201220347 Y CN201220347 Y CN 201220347Y CN U2008200403322 U CNU2008200403322 U CN U2008200403322U CN 200820040332 U CN200820040332 U CN 200820040332U CN 201220347 Y CN201220347 Y CN 201220347Y
- Authority
- CN
- China
- Prior art keywords
- pad
- centre bore
- shaft end
- axle head
- central hole
- 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
Links
- 238000003754 machining Methods 0.000 abstract 4
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a shaft end centre bore stack structure, it comprises axle head, bolt and pad. The right end face of the pad is provided with a taper boss matched with the central hole of the shaft end, the center of the left end face of the pad is provided with a central hole with the same nominal size as the shaft end, and the pad and the central hole are of a coaxial structure. The threaded hole in the central hole of the shaft end is matched with the screw at the top of the tapered boss at the right end of the pad, and the pad is connected with the shaft end through a bolt so as to stabilize the position of the pad. During rough machining, the machine tool positioning center is pressed against the center hole at the left end of the pad and is used as a positioning reference. During finish machining, the bolt is firstly detached and then the pad is screwed down, the original precision is still kept because the central hole of the shaft end is not abraded, finish machining is directly carried out by taking the central hole of the shaft end as a reference, the positioning precision is high, and the machining quality is good. The utility model discloses be particularly suitable for making the centre bore structure of high accuracy axle processing.
Description
Technical field
The utility model relates to a kind of axle head centre bore, and particularly the rotor axle head is provided with the centre bore of overlaying structure.
Background technology
Rotor axis of electric is a kind of high-precision axial workpiece, and prior art serves as that the location benchmark carries out machined and check with axle two ends centre bore.Because the centre bore of rotor axle head is with respect to the top rotation in location during machined, centre bore must cause certain wearing and tearing and reduce the machined precision, particularly the armature spindle of heavy-duty motor is heavier because of own wt, centre bore is subject to gravity and the cutting force influence produces uneven wear, the centre bore of distortion influences subsequent fine processing and product inspection quality.Although can suitably improve the positioning accuracy of centre bore to the grinding of centre bore reparation property, can not recover due positioning accuracy.
The utility model content
The utility model is primarily aimed at the deficiencies in the prior art, proposes a kind of axle head centre bore overlaying structure, and this structure is by setting up the process pad, is not worn when the roughing with protection axle head centre bore.
The utility model is achieved through the following technical solutions technical goal.
Axle head centre bore overlaying structure, it is made of axle head, bolt and pad, its improvements are: described pad right side is provided with the tapering boss that matches with the axle head centre bore, the center, left side is provided with the centre bore with the identical nominal dimension of axle head, and pad connects into demountable structure with axle head by bolt.
Pad in the said structure is the process pad, and the centre bore of its left side is coaxial with the tapering boss of right side, pad divided by tapering boss and axle head centre bore match locate outside, also be provided with screw connection structure and determine cooperation position.Pad is made of the good steel of wearability, and after heat treatment has very strong anti-wear performance, and the roughing stage is made the centering benchmark with the centre bore of pad, and fine finishining stage and testing stage are benchmark with the axle head centre bore then.
The utility model compared with prior art has following good effect:
1, to set up mat structure simple, easy to manufacture for axle head;
2, pad and axle head stack and coaxial can satisfy the roughing location, also are beneficial to subsequent fine processing;
3, lay down pad, the axle head centre bore is intact, makes fine finishining and check benchmark, precision height with the axle head centre bore.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
Embodiment shown in reference to the accompanying drawings further specifies the utility model below.
Axle head centre bore overlaying structure shown in the drawings, it is by axle head 1, bolt 2 and fill up 3 and constitute.Described pad 3 right sides are provided with the tapering boss that matches with axle head 1 centre bore, and the center, left side is provided with the centre bore with axle head 1 identical nominal dimension, and both are coaxial configuration.Establishing screwed hole in the centre bore of described axle head 1 matches with the screw rod that pad 3 right-hand member tapering boss push up.Described pad 3 also is connected by bolt 2 with axle head 1.Present embodiment is the 200KW rotor axis of electric, and its axle head 1 diameter is φ 150mm, is provided with φ 25mm centre bore, and the screw in the centre bore is M12mm.To fill up the 3 tapering boss with the right side during roughing and match with the centre bore of axle head 1, and be integral by being threaded of top, and also be connected by bolt 2 between pad 3 and the axle head 1, with stable 3 the position of filling up, lathe is located top directly withstanding on and is filled up 3 central hole.During fine finishining, first demounting bolt 2 screws off pad 3 again, because the centre bore end of axle head is worn, still keeps original precision, and directly the centre bore with axle head 1 is that benchmark carries out fine finishining, the positioning accuracy height, and crudy is good.
Claims (3)
1, a kind of axle head centre bore overlaying structure, it is made of axle head (1), bolt (2) and pad (3), it is characterized in that: described pad (3) right side is provided with the tapering boss that matches with axle head (1) centre bore, the center, left side is provided with the centre bore with the identical nominal dimension of axle head (1), and pad (3) connects into demountable structure with axle head (1) by bolt (2).
2, axle head centre bore overlaying structure according to claim 1 is characterized in that: the centre bore of described pad (3) left side is coaxial with the tapering boss of right side.
3, axle head centre bore overlaying structure according to claim 1 is characterized in that: the threaded shank of establishing screw and pad (3) right-hand member tapering boss top in described axle head (1) centre bore matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200403322U CN201220347Y (en) | 2008-07-14 | 2008-07-14 | Shaft end center hole stacking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200403322U CN201220347Y (en) | 2008-07-14 | 2008-07-14 | Shaft end center hole stacking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201220347Y true CN201220347Y (en) | 2009-04-15 |
Family
ID=40573866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200403322U Expired - Fee Related CN201220347Y (en) | 2008-07-14 | 2008-07-14 | Shaft end center hole stacking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201220347Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363220A (en) * | 2011-11-21 | 2012-02-29 | 南车成都机车车辆有限公司 | Device for protecting center hole of axle |
| CN102581649A (en) * | 2012-03-30 | 2012-07-18 | 江苏常牵庞巴迪牵引***有限公司 | Machining fixture for outer circles of rotary shafts of motors |
| CN107186431A (en) * | 2017-06-29 | 2017-09-22 | 上海运城制版有限公司 | A kind of roller of shaft end with centre bore silk tooth repaiies aperture apparatus and method |
-
2008
- 2008-07-14 CN CNU2008200403322U patent/CN201220347Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363220A (en) * | 2011-11-21 | 2012-02-29 | 南车成都机车车辆有限公司 | Device for protecting center hole of axle |
| CN102581649A (en) * | 2012-03-30 | 2012-07-18 | 江苏常牵庞巴迪牵引***有限公司 | Machining fixture for outer circles of rotary shafts of motors |
| CN107186431A (en) * | 2017-06-29 | 2017-09-22 | 上海运城制版有限公司 | A kind of roller of shaft end with centre bore silk tooth repaiies aperture apparatus and method |
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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: 20090415 Termination date: 20110714 |