CN204784089U - Hub bolt subassembly - Google Patents
Hub bolt subassembly Download PDFInfo
- Publication number
- CN204784089U CN204784089U CN201520508174.9U CN201520508174U CN204784089U CN 204784089 U CN204784089 U CN 204784089U CN 201520508174 U CN201520508174 U CN 201520508174U CN 204784089 U CN204784089 U CN 204784089U
- Authority
- CN
- China
- Prior art keywords
- nut
- conus portion
- bolt assembly
- nave boss
- assembly according
- 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
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model belongs to the technical field of auto -parts and specifically relates to that relate to is the locking fastening type nave boss bolt assembly that moves, including stud, with top nut of stud complex and lower nut. The utility model discloses not hard up when the double nut structure that comprises concave nut and protruding nut prevents the hub with the bolt installation, protruding nut conical end top -coat rubber layers, double nut structure's the fastening performance that has moreover. The fastening nature of bolt and hub installation can be guaranteed to two rings of annular knurls in the section of bolt cooperation simultaneously.
Description
Technical field
The utility model relates to auto parts machinery field, and what especially relate to is a kind of boss bolt assembly.
Background technique
When car runs, can constantly shake, the bolt assembly on wheel hub can slowly loosen along with vibrations, overhauls discovery in time if fail, and wheel hub may occur and depart from, therefore fastening performance has become the primary standard of inspection boss bolt.Existing boss bolt adopts double nut bolt, increases the tightness of wheel hub successively, but double nut used is the superposition of general nut, is separated each other, along with loosening in various degree still occurs in vibrations, cannot realize anti-loosening performance.
Model utility content
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of anti-loosening fastening type nave boss bolt assembly.
For achieving the above object, technical solution of the present utility model is: a kind of nave boss bolt assembly, comprise stud bolt, the upper cap nut coordinated with stud bolt and lower nut, it is characterized in that: described upper cap nut is double nuts structure, the recessed nut comprising knurled nut and mate with knurled nut; Described knurled nut one end is provided with the conus portion axially protruded, and conus portion outer end diameter is less than external diameter bottom conus portion, and conus portion axial height is less than the axial height of knurled nut; Described recessed nut inner wall comprises internal thread segment and smooth section, and smooth section is the conical bore mated with knurled nut conus portion; Described recessed nut conical bore axial height is less than the axial height of recessed nut.
Preferably, an axial raised line is provided with in described conical bore.
Preferably, described raised line radial thickness is 0.2-1MM.When knurled nut conus portion and recessed nut conical bore cooperatively interact, raised line makes the axle center of the axle center of knurled nut and recessed nut depart from the axle center of bolt toward opposite direction, and the tightness of double nuts structure and bolt is strengthened.
Preferably, described conus portion and axial line form cone angle, and cone angle is 0 °-45 °.
Preferably, cone angle is 3 °-15 °.
Preferably, described bolt comprises the thread section being positioned at its two ends and the cooperation section be positioned in the middle of two thread sections, the fixed block described cooperation section being interval with two circle annular knurls and coordinating with wheel hub, is provided with annular groove between described two circle annular knurls.The chip that when annular groove can hold bolt disassembly, annular knurl scrapes in wheel bore and dust.
Preferably, described conus portion end face scribbles rubber layer.Rubber layer can increase the fastening performance of double nuts structure.
By adopting above-mentioned technological scheme, the beneficial effects of the utility model are: the loosening when double nuts structure that the utility model is made up of recessed nut and knurled nut prevents wheel hub and bolt from installing, and the rubber layer that knurled nut circular cone end face scribbles, the fastening performance of double nuts structure.Bolt coordinates in section two circle annular knurls can ensure the tightness that bolt and wheel hub are installed simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the axial sectional view of double nuts structure and bolt;
Fig. 3 is the utility model embodiment 1 double nuts structure schematic diagram;
Fig. 4 is the utility model embodiment 2 double nuts structure schematic diagram.
Main Reference Numerals illustrates: (1, bolt, 11, coordinate section, 12, fixed block, 13, annular knurl, 14, annular groove, 15, thread section, 21, knurled nut, 22, conus portion, 23, recessed nut, 24, conical bore, 25, rubber layer, 26, raised line, 3, lower nut, α, cone angle).
Embodiment
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Embodiment 1:
As shown in Figure 1-Figure 3, a kind of nave boss bolt assembly of the utility model, comprises stud bolt 1, the upper cap nut coordinated with stud bolt 1 and lower nut 3.Described upper cap nut 2 is double nuts structure, the recessed nut 23 comprising knurled nut 21 and mate with knurled nut 21.Described knurled nut 21 one end is provided with the conus portion 22 axially protruded, and conus portion 22 outer end diameter is less than external diameter bottom conus portion 22, and conus portion 22 axial height is less than the axial height of knurled nut 21; Described conus portion 22 forms cone angle with axial line, and cone angle is 0 °-45 °, and cone angle optimum is 3 °-15 °.Described recessed nut 23 inwall comprises internal thread segment and smooth section, and smooth section is the conical bore 24 mated with knurled nut 21 conus portion 22; Described recessed nut 23 conical bore 24 axial height is less than the axial height of recessed nut.During use, double nuts structure screws, when there are vibrations in vehicle, recessed nut 23 from knurled nut 21 because the length that is threaded with bolt 1 is different, produce in various degree loosen, and the conical bore 24 of recessed nut 23 with the conus portion 22 of knurled nut 21 along with loosening more by nearer, be engaged tightr, boss bolt 1 be connected with wheel hub more fastening.
Bolt 1 described in the utility model comprises the thread section 15 being positioned at its two ends and the cooperation section 11 be positioned in the middle of two thread sections 15, the fixed block 12 described cooperation section 11 being interval with two circle annular knurls 13 and coordinating with wheel hub, is provided with annular groove 14 between described two circle annular knurls 13.The chip that when annular groove 14 can hold bolt disassembly, annular knurl 14 scrapes in wheel bore and dust.
Embodiment 2:
As shown in Figure 1, Figure 2, Figure 4 shows, based on embodiment 1, conus portion 22 end face described in the utility model scribbles rubber layer 25, and rubber layer 25 can increase the fastening performance of double nuts structure.Meanwhile, be provided with an axial raised line 26 in described conical bore 24, described raised line radial thickness is 0.2-1MM.When knurled nut 21 conus portion 22 cooperatively interacts with recessed nut 23 conical bore 24, raised line 26 makes the axle center of the axle center of knurled nut 21 and recessed nut 23 depart from the axle center of bolt 1 toward opposite direction, and the tightness of double nuts structure and bolt 1 is strengthened.
Above-described, be only preferred embodiment of the present utility model, the scope that this practicality is implemented can not be limited, every equalization change of doing according to the utility model claim and decoration, all should still belong in scope that the utility model contains.
Claims (7)
1. a nave boss bolt assembly, comprises stud bolt, the upper cap nut coordinated with stud bolt and lower nut, it is characterized in that: described upper cap nut is double nuts structure, the recessed nut comprising knurled nut and mate with knurled nut; Described knurled nut one end is provided with the conus portion axially protruded, and conus portion outer end diameter is less than external diameter bottom conus portion, and conus portion axial height is less than the axial height of knurled nut; Described recessed nut inner wall comprises internal thread segment and smooth section, and smooth section is the conical bore mated with knurled nut conus portion; Described recessed nut conical bore axial height is less than the axial height of recessed nut.
2. nave boss bolt assembly according to claim 1, is characterized in that: be provided with an axial raised line in described conical bore.
3. nave boss bolt assembly according to claim 2, is characterized in that: described raised line radial thickness is 0.2-1MM.
4. nave boss bolt assembly according to claim 1, is characterized in that: described conus portion and axial line form cone angle, and cone angle is 0 °-45 °.
5. nave boss bolt assembly according to claim 4, is characterized in that: cone angle is 3 °-15 °.
6. nave boss bolt assembly according to claim 1, it is characterized in that: described bolt comprises the thread section being positioned at its two ends and the cooperation section be positioned in the middle of two thread sections, the fixed block described cooperation section being interval with two circle annular knurls and coordinating with wheel hub, is provided with annular groove between described two circle annular knurls.
7. nave boss bolt assembly according to claim 1, is characterized in that: described conus portion end face scribbles rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520508174.9U CN204784089U (en) | 2015-07-15 | 2015-07-15 | Hub bolt subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520508174.9U CN204784089U (en) | 2015-07-15 | 2015-07-15 | Hub bolt subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784089U true CN204784089U (en) | 2015-11-18 |
Family
ID=54524144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520508174.9U Expired - Fee Related CN204784089U (en) | 2015-07-15 | 2015-07-15 | Hub bolt subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003518A (en) * | 2015-07-15 | 2015-10-28 | 蒋昆明 | Hub bolt component |
| CN108591228A (en) * | 2018-05-28 | 2018-09-28 | 忻建国 | A kind of anti-loosen screw nut component and stop nut lock |
-
2015
- 2015-07-15 CN CN201520508174.9U patent/CN204784089U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003518A (en) * | 2015-07-15 | 2015-10-28 | 蒋昆明 | Hub bolt component |
| CN108591228A (en) * | 2018-05-28 | 2018-09-28 | 忻建国 | A kind of anti-loosen screw nut component and stop nut lock |
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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: 20151118 Termination date: 20180715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |