CN203926466U - Camshaft and timing gear linkage structure - Google Patents
Camshaft and timing gear linkage structure Download PDFInfo
- Publication number
- CN203926466U CN203926466U CN201420263421.9U CN201420263421U CN203926466U CN 203926466 U CN203926466 U CN 203926466U CN 201420263421 U CN201420263421 U CN 201420263421U CN 203926466 U CN203926466 U CN 203926466U
- Authority
- CN
- China
- Prior art keywords
- camshaft
- timing gear
- spindle nose
- hollow type
- linkage structure
- 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
Links
- 230000008859 change Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to camshaft and timing gear linkage structure, comprise camshaft and timing gear, it is characterized in that: also comprise spindle nose, described camshaft is hollow type camshaft, hollow type camshaft is connected with timing gear by spindle nose, and timing gear are dismounting and change separately.The utility model is simple in structure, adopt hollow type camshaft to be connected with timing gear by spindle nose, torsional strength is reliable, with the obvious advantage at aspects such as lightweight, energy saving and cost lowering, optimization of material couplings, can guarantee that timing gear are consistent with Placement and the existing one-piece camshaft of camshaft simultaneously.
Description
Technical field
The utility model relates to a kind of camshaft and timing gear linkage structure, belongs to diesel engine part device technique field.
Background technique
Camshaft timing gear is the important accessory on diesel engine, current, and the camshaft on camshaft timing gear is mainly by solid camshaft and two kinds of structural types of hollow camshaft.
For adopting solid camshaft, the problem of existence is: (1), because the quality of solid camshaft is more much bigger than hollow type camshaft, cost of material is higher, does not meet complete machine lightweight and reduces costs demand; (2) due to camshaft, be the rotary component of a kind of continuous acceleration and deceleration, its acceleration and deceleration are all accompanied by the consumption of energy, and camshaft quality is larger, and energy consumption is more; (3) solid camshaft is integral structure, can only adopt homogenous material, and can not carry out according to demand the Optimized Matching of material;
(2) for adopting hollow type camshaft, existing is that camshaft timing gear direct heat is enclosed within on camshaft cylindrical, because camshaft and timing gear are that interference hot jacket is connected, timing gear cannot be changed separately, as long as the two has the damage just can only camshaft and timing gear integral replacing.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of camshaft and timing gear linkage structure are provided, it is simple in structure, adopt hollow type camshaft to be connected with timing gear by spindle nose, torsional strength is reliable, with the obvious advantage at aspects such as lightweight, energy saving and cost lowering, optimization of material couplings, can guarantee that timing gear are consistent with Placement and the existing one-piece camshaft of camshaft simultaneously.
The technological scheme providing according to the utility model: camshaft and timing gear linkage structure, comprise camshaft and timing gear, it is characterized in that: also comprise spindle nose, described camshaft is hollow type camshaft, hollow type camshaft is connected with timing gear by spindle nose, and timing gear are dismounting and change separately.
As further improvement of the utility model, described spindle nose first end is fixedly connected with hollow type camshaft, and spindle nose the second end is provided with interior threaded hole, and timing gear are fixedly connected with spindle nose the second end by the bolt being arranged in interior threaded hole.
As further improvement of the utility model, described spindle nose first end adopts interference fit to be connected with the endoporus of hollow type camshaft, or adopts interference fit and be welded to connect, or adopts sintering to connect, or adopts annular knurl to connect.
As further improvement of the utility model, described spindle nose first end is pressed in the endoporus of hollow type camshaft by hot jacket method or cold cover method.
As further improvement of the utility model, described spindle nose first end is provided with location convex shoulder, and this location convex shoulder coordinates location with the end face of hollow type camshaft.
As further improvement of the utility model, in the endoporus of described hollow type camshaft, be provided with step in location, in this location, step coordinates location with the end face of spindle nose first end.
As further improvement of the utility model, described timing gear end face is provided with positioning groove, described positioning groove internal diameter and spindle nose the second end external diameter are suitable, and timing gear coordinate location and fix by the bolt being arranged in interior threaded hole with spindle nose the second end by positioning groove.
the utility model is compared with prior art, has the following advantages:
(1) compare with the solid camshaft of traditional integral type, hollow type camshaft quality obviously alleviates that (data show, hollow type camshaft quality can alleviate 30% ~ 50%), and torsional strenght reliability meets usage requirement, meet complete machine lightweight demand, significant to engine energy-saving, hollow type camshaft cost of material is lower simultaneously.
(2) hollow type camshaft and spindle nose can be according to demand, and selection material is optimized coupling flexibly.
(3) spindle nose is with bolts with formal gear, and timing gear are dismounting and change separately, is conducive to reduce device maintenance maintenance cost.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is that spindle nose adopts interference fit to be connected with hollow type gear shaft, or adopts interference fit and be welded to connect, or the connection decomposing schematic representation that adopts sintering to connect.
Fig. 3 is the connection decomposing schematic representation that spindle nose adopts axial splines to be connected with hollow type gear shaft.
Fig. 4 is the connection decomposing schematic representation that spindle nose and hollow type gear shaft adopt horizontal spline joint.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure: the camshaft in embodiment and timing gear linkage structure are mainly comprised of camshaft 1, spindle nose 2 and timing gear 3, described camshaft 1 is hollow type camshaft 1, and hollow type camshaft 1 is fixedly connected with spindle nose 2 first ends; Spindle nose 2 second ends are provided with interior threaded hole, described timing gear 3 end faces are provided with positioning groove 3a, described positioning groove 3a internal diameter and spindle nose 2 second end external diameters are suitable, timing gear 3 coordinate location fixing by the bolt 4 being arranged in interior threaded hole with spindle nose 2 second ends by positioning groove 3a, timing gear 3 are dismounting and change separately.
As shown in Fig. 2 ~ Fig. 4, in the utility model, described spindle nose 2 first ends can adopt various ways to be connected with the endoporus of hollow type camshaft 1, as adopted interference fit to connect, or adopt interference fit and are welded to connect, or adopting sintering to connect, or adopting annular knurl to connect.
While adopting interference fit to connect, the spindle nose of Interference size 2 first ends are pressed in the endoporus of hollow type camshaft 1 by hot jacket method or cold cover method, realize spindle nose 2 and be connected with the interference fit of hollow type camshaft 1; Then can adopt the method for welding further fixing spindle nose 2 and hollow type camshaft 1.
While adopting sintering to connect, the spindle nose of powder metallurgy forming 2 first ends are inserted in the endoporus of hollow type camshafts 1, then put into sintering furnace, the liquid state diffusion occurring by material granule on surface of contact realizes being connected of spindle nose 2 and hollow type camshaft 1.
While adopting annular knurl to connect, before assembling, first, by spindle nose 2 first end surface knurling moulding, then 2 first ends of the spindle nose after annular knurl moulding are pressed in the endoporus of hollow type camshaft 1, utilize plastic flow deformation and cutting deformation principle to realize being connected of spindle nose 2 and hollow type camshaft 1.Described annular knurl shape includes but not limited to axial annular knurl described in Fig. 3 and the horizontal annular knurl shown in Fig. 4; The endoporus of described hollow type camshaft 1 is circular or polygonal according to the corresponding Choice and process of annular knurl direction.
During specific operation, the axial annular knurl Placement of take is example, adopt knurling tool, by plastic deformation, spindle nose 2 first end surface edgings are become to the between cog bar ditch shape parallel with spindle nose 2 axis, then spindle nose 2 first ends are press fit in the endoporus of hollow type camshaft 1, while utilizing spindle nose 2 and camshaft 1 to be connected, by spindle nose 2, are inlaid into the shearing force that camshaft 1 inwall bears and guarantee torsional strength.
In the utility model, spindle nose 2 stretches into the length of hollow type camshaft 1 and can locate by following two kinds of structures: a kind of is to be provided with location convex shoulder 2a at spindle nose 2 first ends, and this location convex shoulder 2a coordinates location with the end face of hollow type camshaft 1.Another kind is that in the endoporus of hollow type camshaft 1, to be provided with in location step not shown, and this interior step in location coordinates location with the end face of spindle nose 2 first ends.
It should be noted that, above-mentioned several Placement is several conventional Placement that this law embodiment enumerates, in actual production is manufactured, hollow type camshaft 1 includes but not limited to the modes such as above-mentioned welding, sintering, mechanical connection with the Placement of spindle nose 2.
The utility model adopts hollow type camshaft 1 to be connected with timing gear 3 by spindle nose 2, in assurance, meet under the prerequisite of torsional strength reliability, the demand that adapts to complete machine lightweight, energy saving and cost lowering, optimization of material coupling, can guarantee that timing gear 3 are consistent with Placement and the existing one-piece camshaft 1 of camshaft 1 simultaneously.
Claims (7)
1. camshaft and timing gear linkage structure, comprise camshaft (1) and timing gear (3), it is characterized in that: also comprise spindle nose (2), described camshaft (1) is hollow type camshaft (1), hollow type camshaft (1) is connected with timing gear (3) by spindle nose (2), and timing gear (3) are dismounting and change separately.
2. camshaft as claimed in claim 1 and timing gear linkage structure, it is characterized in that: described spindle nose (2) first end is fixedly connected with hollow type camshaft (1), spindle nose (2) second ends are provided with interior threaded hole, and timing gear (3) are fixedly connected with spindle nose (2) second ends by the bolt (4) being arranged in interior threaded hole.
3. camshaft as claimed in claim 2 and timing gear linkage structure, it is characterized in that: described spindle nose (2) first end adopts interference fit to be connected with the endoporus of hollow type camshaft (1), or adopt interference fit and be welded to connect, or adopt sintering to connect, or adopt annular knurl to connect.
4. camshaft as claimed in claim 3 and timing gear linkage structure, is characterized in that: described spindle nose (2) first end is pressed in the endoporus of hollow type camshaft (1) by hot jacket method or cold cover method.
5. camshaft as claimed in claim 2 and timing gear linkage structure, is characterized in that: described spindle nose (2) first end is provided with location convex shoulder (2a), and this location convex shoulder (2a) coordinates location with the end face of hollow type camshaft (1).
6. camshaft as claimed in claim 2 and timing gear linkage structure, is characterized in that: in the endoporus of described hollow type camshaft (1), be provided with step in location, in this location, step coordinates location with the end face of spindle nose (2) first end.
7. camshaft as claimed in claim 2 and timing gear linkage structure, it is characterized in that: described timing gear (3) end face is provided with positioning groove (3a), described positioning groove (3a) internal diameter and spindle nose (2) second end external diameters are suitable, and timing gear (3) coordinate location fixing by the bolt (4) being arranged in interior threaded hole with spindle nose (2) second ends by positioning groove (3a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263421.9U CN203926466U (en) | 2014-05-21 | 2014-05-21 | Camshaft and timing gear linkage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263421.9U CN203926466U (en) | 2014-05-21 | 2014-05-21 | Camshaft and timing gear linkage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926466U true CN203926466U (en) | 2014-11-05 |
Family
ID=51822280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420263421.9U Expired - Lifetime CN203926466U (en) | 2014-05-21 | 2014-05-21 | Camshaft and timing gear linkage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967952A (en) * | 2014-05-21 | 2014-08-06 | 中国第一汽车股份有限公司 | Cam shaft and timing gear connection structure |
| CN104550969A (en) * | 2014-12-30 | 2015-04-29 | 北京有色金属研究总院 | Combined sintering and connecting method of ends of power metallurgy camshaft |
-
2014
- 2014-05-21 CN CN201420263421.9U patent/CN203926466U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967952A (en) * | 2014-05-21 | 2014-08-06 | 中国第一汽车股份有限公司 | Cam shaft and timing gear connection structure |
| CN104550969A (en) * | 2014-12-30 | 2015-04-29 | 北京有色金属研究总院 | Combined sintering and connecting method of ends of power metallurgy camshaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206868992U (en) | It is a kind of from the self-centering screw-rolling machine of dynamic triaxial | |
| CN204019444U (en) | One dismantling electrode cap mechanism | |
| CN203926466U (en) | Camshaft and timing gear linkage structure | |
| CN201436133U (en) | Cam bush press-in device | |
| CN201415351Y (en) | Piston pin tensioning mandrel | |
| CN203357382U (en) | Ring disassembling device | |
| CN201147919Y (en) | Flexible locater for assembling landing gear joint | |
| CN203330206U (en) | Valve clamping groove rolling device | |
| CN103967952A (en) | Cam shaft and timing gear connection structure | |
| CN2761310Y (en) | Cold-heading die for processing extra large angle taper roller | |
| CN206140089U (en) | A camshaft coupling frock for installing oil pump cam | |
| CN202108858U (en) | Engineering machinery transmission shaft bond axis | |
| CN201604118U (en) | Dismounting device for engine component | |
| CN204961604U (en) | Shaft coupling of easy dismouting | |
| CN202877834U (en) | Bearing snap spring pressing tool | |
| CN206780307U (en) | A kind of engine cylinder cap bolt disassembly instrument | |
| CN206732909U (en) | A kind of thin-wall cylinder casing press mounting tool | |
| CN206952492U (en) | A kind of gear-bearing press-loading apparatus | |
| CN204367803U (en) | Metal torsion bar and bridge tube assembly | |
| CN204449048U (en) | A kind of valve body inner/outer tube is without being riveting connection device | |
| CN202278295U (en) | Cam coupling disc tabletting mechanism of chain resistance butt welder | |
| CN201997613U (en) | Oil delivery joint riveting auxiliary device | |
| CN209970579U (en) | Tool for assembling and disassembling pressure filling oil cup | |
| CN202155538U (en) | Ejector cap for lathing pipe-category parts | |
| CN203579434U (en) | Composite grinding wheel for anvil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |