CN201253755Y - Dynamic balancing screw nut - Google Patents
Dynamic balancing screw nut Download PDFInfo
- Publication number
- CN201253755Y CN201253755Y CNU2008201031967U CN200820103196U CN201253755Y CN 201253755 Y CN201253755 Y CN 201253755Y CN U2008201031967 U CNU2008201031967 U CN U2008201031967U CN 200820103196 U CN200820103196 U CN 200820103196U CN 201253755 Y CN201253755 Y CN 201253755Y
- Authority
- CN
- China
- Prior art keywords
- nut
- screw cap
- dynamic balancing
- axis hole
- counterweight
- 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 - Lifetime
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Abstract
The utility model discloses a dynamic balance screw cap; a shaft hole is formed inside the screw cap; an embedding part with a smaller diameter is formed at the bottom end of the shaft hole; an annular locking ring is formed at the top side of the embedding part; the locking ring is eccentrically arranged relative to the axis of the shaft hole; a plurality of gripping parts are formed on the external circumferential surface of the screw cap at equal intervals; a counterbalance sunken hole is concavely arranged at one side of the external circumferential surface of the screw cap, and the side is protruded inward relative to the locking ring; through the counterbalance sunken hole, the utility model reduces the weight at one heavier side of the screw cap; therefore, when the screw cap is spirally locked to a cutter holder, the screw cap can make high-speed rotation at a stable location of center of gravity to reduce vibration, extend service life and achieve high processing accuracy.
Description
Technical field
The utility model relates to a kind of accessory of knife bar, especially refers to a kind of dynamic balancing nut of weight balancing.
Background technology
Existing nut is the bottom of screw lock in knife bar, grips the collet chuck of being located in the knife bar with screw lock and urgent structure, the cutter that fixedly plugs with collet chuck.
For fastening the front end of collet chuck, be provided with the eccentric snap ring that is provided with in nut axis hole front end, with the side of snap ring towards a projecting inward side hook collet chuck front end, yet the eccentric snap ring that is provided with but causes the weight imbalance of nut, the center of gravity that makes nut is not to be positioned at centre, so, problems such as vibrations can take place when nut rotates at a high speed, cause the problem of processing.
The utility model content
At the defective that exists in the prior art, the utility model provides a kind of dynamic balancing nut, and it can reduce the vibrations in when rotation and reach and increase the service life and effect such as machining accuracy height.
For achieving the above object, technical solutions of the utility model are:
A kind of dynamic balancing nut, its inner axis hole that forms forms a thread segment around axis hole, form an embedding part in the bottom of this axis hole again, and the diameter of this embedding part is less than the diameter of thread segment; Top side in close this thread segment of this embedding part forms a circular snap ring, this snap ring is eccentric setting the in axle center of this axis hole relatively, outer peripheral face in this nut uniformly-spaced is arranged with an above clamping part, to being arranged with a counterweight shrinkage pool towards a projecting inward side by snap ring, this counterweight shrinkage pool is located between the two adjacent clamping parts in this nut outer peripheral face.
It respectively is along the axially extended straight trough of described axis hole that described clamping part is six.
Described clamping part is six tangent planes.
Described counterweight shrinkage pool is a circular groove.
Described counterweight shrinkage pool is the strip groove that along continuous straight runs extends.
The usefulness of technique scheme is:
Because knife bar nut center of gravity of the prior art is in the centre, therefore when processing is used, can produces vibrations and produce that machining accuracy descends and problems such as life-span reduction.The utility model is provided with the counterweight shrinkage pool that changes nut weight around nut, make and become the therefore weight reduction of heavier nut one side because of snap ring off-centre is provided with, whereby, allow the center of gravity position of nut in the position at center, when being rotated in knife bar, the nut screw lock adds man-hour, can reach following effect: 1, because the center of gravity of the utility model nut is positioned at the center, so screw lock can be avoided the generation of main shaft vibrations when knife bar rotates; 2, because the utility model nut can reduce vibrations with stable center of gravity, therefore can prolong the life-span of cutter processing; 3, the utility model nut has reduced the vibrations of main shaft, therefore in adding the precision that can promote processing man-hour, obtains preferable workpiece surface roughness.
Description of drawings
Fig. 1 is the utility model embodiment one perspective view;
Fig. 2 is the utility model embodiment one cross-sectional view;
Fig. 3 is the utility model embodiment one plan structure schematic diagram;
Fig. 4 is the utility model embodiment two perspective view;
Fig. 5 is the utility model embodiment two cross-sectional view;
Fig. 6 is the utility model embodiment two plan structure schematic diagrames;
Fig. 7 is the utility model embodiment three perspective view;
Fig. 8 is the utility model embodiment four perspective view;
Fig. 9 is the utility model embodiment five perspective view;
Figure 10 is the utility model embodiment six perspective view.
The specific embodiment
The utility model now is described in conjunction with the accompanying drawings and embodiments.
The utility model is disclosed to be a kind of dynamic balancing nut.Embodiment one as Figure 1-3: this nut forms an axis hole 10 in inside, around axis hole 10, form a thread segment 11, form the less embedding part of a diameter 12 again in the bottom of thread segment 11, top side in these embedding part 12 close thread segments 11 forms a circular snap ring 13, and the axle center of snap ring 13 relative axis holes 10 is eccentric to be provided with.Outer peripheral face in this nut is arranged with six straight troughs 14 as the clamping shape in equally spaced mode, six straight trough 14 each extending axially and being provided with along axis hole 10 in equally spaced mode, be arranged with a counterweight shrinkage pool 15 in the corresponding snap ring 13 of nut outer peripheral face towards a projecting inward side, counterweight shrinkage pool 15 is circular grooves and between two adjacent straight troughs 11, and nut eliminates the weight that counterweight shrinkage pool 15 alleviated makes the center of gravity of nut be positioned at the center of axis hole 10.
The utility model removes the above embodiments one, be that counterweight shrinkage pool 15 is made as beyond the circular groove, counterweight shrinkage pool 15 also can be other shape, see also the embodiment two of 4-6 figure, the counterweight shrinkage pool 15A that changes shape among this embodiment two is the strip groove that along continuous straight runs extends, and same between two adjacent straight troughs 14, by the setting of counterweight shrinkage pool 15A, make because of but snap ring 13 eccentric settings become the one side weight reduction of heavier nut, make the center of gravity of nut be positioned at the center.
The utility model removes embodiment one, embodiment two, be as beyond the clamping shape that provides tool holding to rotate with straight trough 14, embodiment 3,4 shown in Fig. 7,8, also can change described straight trough 14 into tangent plane 14A, with equally spaced tangent plane 14A as the clamping shape, the perhaps straight trough 14 among the embodiment shown in Fig. 9,10 5,6 also can change described straight trough 14 into more shallow and the straight trough 14B form that the bottom is darker in top.And the quantity of straight trough 14, tangent plane 14A also can be other quantity such as four, 5, eight except six form on every side, and the utility model is not limited at this.
Claims (5)
1, a kind of dynamic balancing nut is characterized in that: the inner axis hole that forms of this nut, around axis hole, form a thread segment, and form an embedding part in the bottom of this axis hole again, the diameter of this embedding part is less than the diameter of thread segment; Top side in close this thread segment of this embedding part forms a circular snap ring, this snap ring is eccentric setting the in axle center of this axis hole relatively, outer peripheral face in this nut uniformly-spaced is arranged with an above clamping part, to being arranged with a counterweight shrinkage pool towards a projecting inward side by snap ring, this counterweight shrinkage pool is located between the two adjacent clamping parts in this nut outer peripheral face.
2, a kind of dynamic balancing nut as claimed in claim 1 is characterized in that: it respectively is along the axially extended straight trough of described axis hole that described clamping part is six.
3, a kind of dynamic balancing nut as claimed in claim 1 is characterized in that: described clamping part is six tangent planes.
4, as claim 1,2 or 3 described a kind of dynamic balancing nuts, it is characterized in that: described counterweight shrinkage pool is a circular groove.
5, as claim 1,2 or 3 described a kind of dynamic balancing nuts, it is characterized in that: described counterweight shrinkage pool is the strip groove that along continuous straight runs extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201031967U CN201253755Y (en) | 2008-07-30 | 2008-07-30 | Dynamic balancing screw nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201031967U CN201253755Y (en) | 2008-07-30 | 2008-07-30 | Dynamic balancing screw nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201253755Y true CN201253755Y (en) | 2009-06-10 |
Family
ID=40737070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201031967U Expired - Lifetime CN201253755Y (en) | 2008-07-30 | 2008-07-30 | Dynamic balancing screw nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201253755Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307087A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Arranged hole type self-balancing eccentric shaft |
| TWI513540B (en) * | 2013-10-01 | 2015-12-21 | Hsiao Cheng Yang | Dynamic balance structure |
| WO2020108318A1 (en) * | 2018-11-26 | 2020-06-04 | 汇专科技集团股份有限公司 | Gland for ultrasonic machining device, and ultrasonic knife handle |
-
2008
- 2008-07-30 CN CNU2008201031967U patent/CN201253755Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307087A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Arranged hole type self-balancing eccentric shaft |
| TWI513540B (en) * | 2013-10-01 | 2015-12-21 | Hsiao Cheng Yang | Dynamic balance structure |
| WO2020108318A1 (en) * | 2018-11-26 | 2020-06-04 | 汇专科技集团股份有限公司 | Gland for ultrasonic machining device, and ultrasonic knife handle |
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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 |
Granted publication date: 20090610 |
|
| CX01 | Expiry of patent term |