CN203248550U - Spline shaft gear sleeve bolt loosen-preventing device - Google Patents
Spline shaft gear sleeve bolt loosen-preventing device Download PDFInfo
- Publication number
- CN203248550U CN203248550U CN 201320174384 CN201320174384U CN203248550U CN 203248550 U CN203248550 U CN 203248550U CN 201320174384 CN201320174384 CN 201320174384 CN 201320174384 U CN201320174384 U CN 201320174384U CN 203248550 U CN203248550 U CN 203248550U
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- nut
- bolt
- floor clip
- gear sleeve
- groove
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Abstract
The utility model provides a spline shaft gear sleeve bolt loosen-preventing device and belongs to the technical field of connecting bolts for a rolling mill. The spline shaft gear sleeve bolt loosen-preventing device is used for preventing a spline shaft gear sleeve bolt connected with the rolling mill from loosening, and comprises an inner hexagonal bolt, a gear sleeve pressing plate and a retaining washer, one side of the lower portion of a nut of the inner hexagonal bolt is an anti-screwing plane parallel to the axis of the inner hexagonal bolt, the inner diameter of the retaining washer is matched with the outer diameter of the nut of the inner hexagonal bolt, an outward-protruding outer claw is arranged on the outer circumference of the retaining washer, and an inward-protruding inner claw is arranged on the inner circumference of the retaining washer. The protruding length of the inner claw is matched with the distance between the anti-screwing plane of the nut and the outer diameter of the nut, a groove surrounding a screw hole is formed in the face of the gear sleeve pressing plate, and the shape of the groove is matched with the appearance of the retaining washer. The retaining washer can prevent rotation between the inner hexagonal bolt and the gear sleeve pressing plate, so that the phenomena of loosening and retreating and the like of the inner hexagonal bolt are avoided, accidents of steel stacking and steel flying due to falling of a gear sleeve are effectively reduced, and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of device that prevents the splined shaft tooth cover bolt looseness that rolling mill reduction gears is connected with milling train, belongs to milling train connecting bolt technical field.
Background technique
Splined shaft tooth cover is the necessary parts that rolling mill reduction gears is connected with milling train, plays a part in process of production transmitting torque, also is one of emphasis equipment of milling train group.In actual production process, splined shaft tooth cover land repeatedly occurs the main mill corresponding device of some enterprises because vibration is rotated the centrifugal action that brings with self, so that tooth cover platen connecting bolt is loosening.The anti-loose structure that these connecting bolts adopt is that elastic washer is locking, and spring washer is locking to be to flatten friction torque that the elastic force that produces behind the packing ring increases screw pair by nut to reach and loosen purpose, and defective is that spring washer elastic force is inhomogeneous, the relaxation effect extreme difference.Because these bolts are inner at splined shaft tooth cover, and routine is patrolled and examined and can't be scented a hidden danger, connecting bolt withdraws from fully after the long-term operation, causes splined shaft tooth cover to separate with rolling mill reduction gears and drops simultaneously.Because this accident happens occasionally, and it is very loaded down with trivial details to deal with operation, two or three hours at least, four or five hours at most, the labor intensity of simultaneously maintenance work was very big, had had a strong impact on output and the operating rate of production line.How to reduce even stop splined shaft tooth cover connecting bolt loose or dislocation and become important topic in the urgent need to address.
The model utility content
Technical problem to be solved in the utility model provides a kind of splined shaft tooth cover anti-loosening device of bolt, this anti-loosening device of bolt can effectively prevent bolt looseness, consumption and the cost of the working life of raising equipment and reduction material, spare part, reduce the maintenance of milling train, save engineering time and labour force.
The technological scheme that solves the problems of the technologies described above is:
A kind of splined shaft tooth cover anti-loosening device of bolt, it comprises hexagon socket head cap screw and tooth cover platen, its improvements are, one side of the bottom of the nut of hexagon socket head cap screw is the anti-plane of revolving that is parallel to the hexagon socket head cap screw axis, it also has floor clip, the external diameter of the internal diameter of floor clip and the nut of hexagon socket head cap screw is complementary, outwards outstanding outer pawl is arranged on the excircle of floor clip, oriented interior outstanding interior pawl on the inner circumference, the outstanding length of interior pawl and nut bottom one side are prevented revolving plane to the distance of nut external diameter and are complementary, fluted around the screw place on the tooth cover platen card, the shape of groove and the profile of floor clip are complementary, and the degree of depth of groove is greater than the thickness of floor clip.
Above-mentioned splined shaft tooth cover anti-loosening device of bolt, it also has circlip, circlip is the elastic ring that opening is arranged, nut circumference above a side of the nut of hexagon socket head cap screw anti-revolved the plane has draw-in groove, the internal diameter of circlip and thickness and draw-in groove are complementary, and circlip is embedded in the draw-in groove.
Above-mentioned splined shaft tooth cover anti-loosening device of bolt, the outer pawl on the described floor clip excircle is a plurality of outside projections, projection is along the floor clip circumference uniform distribution.
Above-mentioned splined shaft tooth cover anti-loosening device of bolt, the interior pawl on the described floor clip inner circumference is square projection, the forward edge of projection prevents revolving that the plane is vertical to be contacted with nut bottom one side.
The beneficial effects of the utility model are:
Floor clip of the present utility model is sleeved on the nut of hexagon socket head cap screw; the anti-plane of revolving of nut is meshed with the interior pawl of floor clip; floor clip is embedded in the groove of tooth cover platen card; like this; floor clip can prevent from rotating between hexagon socket head cap screw and the tooth cover platen; thereby avoid the phenomenons such as becoming flexible, withdraw from appears in hexagon socket head cap screw, effectively reduced because of the tooth cover drop the heap steel that causes, fly the dead time that the steel accident causes, improved manufacturing efficiency and the product rate of becoming a useful person.The utlity model has easy accessibility, life cycle is long, recycling rate of waterused is high, easy and simple to handle, safeguard simple advantage, can improve the working life of equipment and reduce spare parts consumption, reduce the maintenance of main frame and replacing number of times and the quantity of connecting bolt, save and recover tooth cover drop fault spent time and labour force.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1;
The schematic representation of Fig. 4 hexagon socket head cap screw;
Fig. 5 is the plane view of floor clip;
Fig. 6 is the plane view of circlip;
Fig. 7 is the plane view of tooth cover platen.
Mark is as follows among the figure: hexagon socket head cap screw 1, nut 2, anti-plane 3, draw-in groove 4, floor clip 5, outer pawl 6, interior pawl 7, circlip 8, tooth cover platen 9, the groove 10 of revolving.
Embodiment
The utility model is comprised of hexagon socket head cap screw 1, tooth cover platen 9, floor clip 5, circlip 8, wherein hexagon socket head cap screw 1 and tooth cover platen 9 is that original hexagon socket head cap screw and tooth cover platen are improved, and floor clip 5 and circlip 8 are the parts that increase newly.
Show among the figure that a side of the bottom of the nut 2 of hexagon socket head cap screw 1 is the anti-plane 3 of revolving that is parallel to hexagon socket head cap screw 1 axis, the anti-plane 3 of revolving can be milled out by milling machine processing.
Show among the figure, the external diameter of the nut 2 of the internal diameter of floor clip 5 and hexagon socket head cap screw 1 is complementary, outwards outstanding outer pawl 6 is arranged on the excircle of floor clip 5, oriented interior outstanding interior pawl 7 on the inner circumference, outer pawl 6 is a plurality of outside projections, projection is along floor clip 5 circumference uniform distributions, and interior pawl 7 be square projection, and the length that interior pawl 7 is outstanding and nut 2 bottoms one side are prevented revolving plane 3 to the distance of nut 2 external diameters and be complementary.During use, floor clip 5 is sleeved on the nut 2, and interior pawl 7 is relative with the anti-plane 3 of revolving, and the forward edge of interior pawl 7 projections is revolved plane 3 vertical contacts with anti-, and hexagon socket head cap screw 1 and floor clip 5 circumference is fastening, makes between them can not relatively rotate.
Show among the figure that fluted 10 around the screw place on tooth cover platen 9 cards, the profile of the shape of groove 10 and floor clip 5 is complementary, the degree of depth of groove 10 is greater than the thickness of floor clip 5.During use, floor clip 5 is embedded in the groove 10 of tooth cover platen 9 cards, and the outer pawl 6 of floor clip 9 can not rotate fastening between floor clip 5 and the tooth cover platen 9.
Like this, the interior pawl 7 of floor clip 5 is fixing with the nut of hexagon socket head cap screw 12, and outer pawl 6 overlaps platen 9 with tooth to be fixed, so just can not rotate between hexagon socket head cap screw 1 and the tooth cover platen 9, prevents that hexagon socket head cap screw 1 from occuring to become flexible and withdraw from.
Show among the figure that deviate from from the groove 10 of tooth cover platen 9 in order to prevent floor clip 5, the utility model has also increased circlip 8.Circlip 8 is for there being the elastic ring of opening, and nut 2 circumference above a side of the nut 2 of hexagon socket head cap screw 1 anti-revolved plane 3 have draw-in groove 4, and the internal diameter of circlip 8 and thickness and draw-in groove 4 are complementary, and circlip 8 is embedded in the draw-in groove 4.Circlip 8 can block moving up of floor clip 5, thereby anti-retaining packing ring 5 is deviate from from the groove 10 of tooth cover platen 9.
Using method of the present utility model is as follows:
Floor clip 5 is sleeved on the nut 2 of hexagon socket head cap screw 1, makes the interior pawl 7 of floor clip 5 corresponding with the anti-plane 3 of revolving of nut 2;
The hexagon socket head cap screw 1 that installs floor clip 5 is screwed in the screw of tooth cover platen 9, fastening, simultaneously floor clip 5 is knocked in the groove 10 of tooth cover platen 9;
Splined shaft tooth cover anti-loosening device of bolt of the present utility model belongs to pioneering design both at home and abroad, effect is very obvious, the phenomenons such as becoming flexible, withdraw from no longer appears in tooth cover connecting bolt, and have practical, reliable operation, easy and simple to handle, safeguard the advantage simple, that cost is low.
Claims (4)
1. a splined shaft tooth overlaps anti-loosening device of bolt, it comprises hexagon socket head cap screw (1) and tooth cover platen (9), it is characterized in that: a side of the bottom of the nut (2) of hexagon socket head cap screw (1) is for being parallel to the anti-plane (3) of revolving of hexagon socket head cap screw (1) axis, it also has floor clip (5), the external diameter of the nut (2) of the internal diameter of floor clip (5) and hexagon socket head cap screw (1) is complementary, outwards outstanding outer pawl (6) is arranged on the excircle of floor clip (5), oriented interior outstanding interior pawl (7) on the inner circumference, the outstanding length of interior pawl (7) and nut (2) bottom one side are prevented revolving plane (3) to the distance of nut (2) external diameter and are complementary, tooth overlaps on platen (9) card around screw place fluted (10), the profile of the shape of groove (10) and floor clip (5) is complementary, and the degree of depth of groove (10) is greater than the thickness of floor clip (5).
2. splined shaft tooth according to claim 1 overlaps anti-loosening device of bolt, it is characterized in that: it also has circlip (8), circlip (8) is for there being the elastic ring of opening, anti-nut (2) circumference that revolves top, plane (3) in a side of the nut (2) of hexagon socket head cap screw (1) has draw-in groove (4), the internal diameter of circlip (8) and thickness and draw-in groove (4) are complementary, and circlip (8) is embedded in the draw-in groove (4).
3. splined shaft tooth according to claim 2 overlaps anti-loosening device of bolt, it is characterized in that: the outer pawl (6) on described floor clip (5) excircle is a plurality of outside projections, and projection is along floor clip (5) circumference uniform distribution.
4. splined shaft tooth according to claim 3 overlaps anti-loosening device of bolt, it is characterized in that: the interior pawl (7) on described floor clip (5) inner circumference is square projection, and the forward edge of projection prevents revolving vertical contact the in plane (3) with nut (2) bottom one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320174384 CN203248550U (en) | 2013-04-09 | 2013-04-09 | Spline shaft gear sleeve bolt loosen-preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320174384 CN203248550U (en) | 2013-04-09 | 2013-04-09 | Spline shaft gear sleeve bolt loosen-preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248550U true CN203248550U (en) | 2013-10-23 |
Family
ID=49374990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320174384 Expired - Fee Related CN203248550U (en) | 2013-04-09 | 2013-04-09 | Spline shaft gear sleeve bolt loosen-preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
-
2013
- 2013-04-09 CN CN 201320174384 patent/CN203248550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |