CN201636176U - External lock nut of advancer - Google Patents
External lock nut of advancer Download PDFInfo
- Publication number
- CN201636176U CN201636176U CN2010201101717U CN201020110171U CN201636176U CN 201636176 U CN201636176 U CN 201636176U CN 2010201101717 U CN2010201101717 U CN 2010201101717U CN 201020110171 U CN201020110171 U CN 201020110171U CN 201636176 U CN201636176 U CN 201636176U
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- CN
- China
- Prior art keywords
- locking block
- nut
- thick end
- locking
- working surface
- 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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- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses an external lock nut of an advancer, which comprises a nut body and a threaded hole arranged in the nut body, and is installed on an external coupling locking block of an automobile-used or industrial diesel engine of the advancer through a bolt. The nut body comprises a horizontally arranged machined surface and an un-machined surface as well as a vertically arranged thick end surface, wherein a slantingly arranged beveled surface is arranged between the thick end surface and the machined surface. The thick end surface is in clearance fit with the locking block; the clearance can be 2.5 to 4.5 mm; the machined surface joints the locking block; and the design of the beveled surface ensures that the machined surface of the nut compresses and joints the locking block, so as to prevent the loosening or stress cracking of the bolt. The external lock nut has advantages of simple structure, convenient operation, good generality, accurate positioning, simple manipulation and high assembly accuracy.
Description
Technical field
The utility model relates to a kind of nut, relates in particular to the special-shaped nut on a kind of coupling locking block that is installed on the automobile-used of advancing device external or the engineering diesel engine.
Background technique
At present, the application of diesel engine is increasingly extensive, relates to automobile-used and engineering two big classes, and various vehicles also have nothing in common with each other to the requirement of diesel engine performance.For satisfying various performance requirement, must carry out necessary adjustment to the locking mechanism of the advancing device of diesel engine, and the locking mechanism of adjusting advancing device just must be installed various control annexes, the installation and control annex that various locking devices must be provided.And the function singleness of existing locking device, no versatility can not be adapted to the various performance requirements (for example only be applicable to diesel engine for automobile, adjust angle and require bigger engineering machine and can not be suitable for) of diesel engine.That abnormity nut installs is improper in that advance angle is adjusted when bolting on, push up locking block R angle (being the inner corner trim of locking block bump), thereby cause that abnormity nut is lifted, can not well fit with locking block, make bolt bear certain stress, thereby cause the fault of bolt fracture to take place.Therefore, need be a kind of simple in structure, easy to use, versatility is good, and is applicable to the locking device of various diesel engines.
The model utility content
The purpose of this utility model provide a kind of simple in structure, easy to use, versatility is good, the location is accurate, easy operation, advancing device external locking nut that assembly precision is high.
The utility model provides a kind of advancing device external locking nut, comprise nut body and be arranged at intrinsic tapped hole, locking nut is installed on the coupling locking block on the automobile-used of advancing device external or the engineering diesel engine by bolt, nut body comprises horizontally disposed working surface and non-working surface, and the thick end face that vertically is provided with, Spielpassung between thick end face and the locking block bump.
Preferably, the chamfer surface that has oblique setting between thick end face and the working surface.After locking nut was installed, chamfer surface was relative with the inner corner trim of locking block bump root, and the described working surface and the locking block that are used to avoid the inner corner trim machined burrs to cause are not fitted.
Preferably, the gap between thick end face and the locking block bump is 2.5-4.5mm.
Wherein, working surface and locking block fit.
Thick end face of the present utility model keeps guaranteeing enough gap adjustment with locking block when adjusting advance angle, avoided that nut and locking block interfere when the adjustment advance angle, causes the phenomenon that can not adjust angle; By between thick end face and working surface, chamfer surface being set, avoid working surface that the inner corner trim machined burrs causes and the locking block generation stress of not fitting, effectively prevent bolt looseness and stressed fracture.
Description of drawings
Fig. 1 is the plan view of the utility model self-locking nut;
Fig. 2 is the left view of the utility model self-locking nut;
Fig. 3 is the sectional view of the utility model self-locking nut
Fig. 4 is the stereogram of the utility model self-locking nut;
Fig. 5 is the assembled front view of the utility model self-locking nut;
Fig. 6 is the assembling side elevation of the utility model self-locking nut.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-locking nut; The 2-locking block; The 3-coupling; The 4-lock bolt; The non-working surface of 11-nut; The 12-nut body; The thick end face of 13-nut; 14-nut chamfer surface; 15-nut working surface; The 16-tapped hole.
Embodiment
Shown in Fig. 1-5, the utility model discloses a kind of locking nut of advancing device external.This locking nut 1 is an abnormity nut, comprise nut body 12 and be arranged at intrinsic tapped hole 16, pass tapped hole 16 by lock bolt 4, apply certain screw-down torque, be installed on the locking block 2 of the coupling 3 on the automobile-used of advancing device external or the engineering diesel engine, nut body 12 comprises horizontally disposed nut working surface 15 and the non-working surface 11 of nut, and the vertical thick end face 13 of nut that is provided with has the nut chamfer surface 14 of oblique setting between thick end face and the working surface.Cancelled the chamfering of the screw of non-working surface in the prior art, the assembling of restriction single face, avoid the phenomenon of misloading, working surface 15 fits with locking block 2, thick end face and coupling locking block maintain the gap (preferred 2.5mm) of 2.5-4.5mm, can between 0 ℃ of A～30 ℃ A, adjust angle (on, the circular arc elongated slot of the corresponding position of locking nut carry out angle adjustment) by coupling, can satisfy the requirement of diesel engine for automobile advance angle, also can satisfy engineering diesel engine advance angle (adjusting angle is bigger) requirement.If the gap is too small, can't reach the requirement of engineering machine advance angle, when adjusting angle, thick end face can be run into the locking block plane and cause interference, can't adjust angle.When adjusting advance angle, can unclamp bolt, the rolling motor bent axle is to the fuel supply advance angle that requires, and whether observation oil pump first cylinder bleed, determines fuel supply advance angle.The inner corner trim position of considering locking block bump root is in to add and has burr man-hour, the design of nut chamfer surface can make the nut working surface compress locking block and fit tightly with it, avoid working surface that the inner corner trim machined burrs causes and the locking block generation stress of not fitting, effectively prevent bolt looseness and stressed fracture.
Thick end face of the present utility model keeps guaranteeing enough gap adjustment with locking block when adjusting advance angle, avoided that nut and locking block interfere when the adjustment advance angle, causes the phenomenon that can not adjust angle; By between thick end face and working surface, chamfer surface being set, bolt looseness and stressed fracture have been prevented.Nut of the present utility model has advantage solid and reliable, widely applicable, simple in structure, easy to process and with low cost, can be widely used in the advancing device external diesel engine.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (5)
1. advancing device external locking nut, comprise nut body and be arranged at intrinsic tapped hole, it is characterized in that: described locking nut is installed on the coupling locking block on the automobile-used of advancing device external or the engineering diesel engine by bolt, described nut body comprises horizontally disposed working surface and non-working surface, and the thick end face that vertically is provided with, Spielpassung between described thick end face and the locking block bump.
2. advancing device external locking nut according to claim 1 is characterized in that: the chamfer surface that has oblique setting between described thick end face and the working surface.
3. advancing device external locking nut according to claim 1 and 2 is characterized in that: the gap between described thick end face and the locking block bump is 2.5-4.5mm.
4. advancing device external locking nut according to claim 1 and 2, it is characterized in that: described working surface and locking block fit.
5. advancing device external locking nut according to claim 2, it is characterized in that: after described locking nut is installed, chamfer surface is relative with the inner corner trim of locking block bump root, and the described working surface and the locking block that are used to avoid described inner corner trim machined burrs to cause are not fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201101717U CN201636176U (en) | 2010-02-05 | 2010-02-05 | External lock nut of advancer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201101717U CN201636176U (en) | 2010-02-05 | 2010-02-05 | External lock nut of advancer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636176U true CN201636176U (en) | 2010-11-17 |
Family
ID=43080668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201101717U Expired - Fee Related CN201636176U (en) | 2010-02-05 | 2010-02-05 | External lock nut of advancer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636176U (en) |
-
2010
- 2010-02-05 CN CN2010201101717U patent/CN201636176U/en not_active Expired - Fee Related
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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: 20101117 Termination date: 20140205 |