CN207847711U - A kind of turbine casing lining for turbocharger covers assembling structure - Google Patents
A kind of turbine casing lining for turbocharger covers assembling structure Download PDFInfo
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- CN207847711U CN207847711U CN201721859280.7U CN201721859280U CN207847711U CN 207847711 U CN207847711 U CN 207847711U CN 201721859280 U CN201721859280 U CN 201721859280U CN 207847711 U CN207847711 U CN 207847711U
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- volute
- bushing
- turbine casing
- turbocharger
- assembling structure
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Abstract
The utility model discloses a kind of turbine casing linings for turbocharger to cover assembling structure, it includes volute, rocking arm air door, transition rocker arm plate and volute bushing, the rocking arm air door is set to by turbine casing lining set on the volute, the transition rocker arm plate is installed on the outer end of the rocking arm air door, wherein, it is connected using interference thread between the volute bushing and the volute, and the outer end of the volute bushing is provided with for ensureing that volute bushing is emerged the limited step of height, the outer diameter of the limited step is more than the outer diameter of the volute bushing.The above-mentioned turbine casing lining set assembling structure for turbocharger is not only simple in structure, it is easy to accomplish；And substantially increase assembled in situ efficiency.
Description
Technical field
The utility model is related to a kind of turbocharger, are set with more particularly, to a kind of turbine casing lining for turbocharger
Distribution structure.
Background technology
Turbocharger is actually a kind of air compressor, increases air inflow by compressed air.It is to utilize hair
The exhaust gas inertia impulsive force of motivation discharge pushes the indoor turbine of turbine, turbine to drive coaxial impeller again, and impeller force feed is by sky
The air that air cleaner pipeline is sent is allowed to supercharging and enters cylinder.When engine speed increases, the exhaust gas velocity of discharge turns with turbine
Speed is also synchronous to be increased, and impeller just compresses more air and enters cylinder, and pressure and the density increase of air can burn more
Fuel, the corresponding rotating speed for increasing fuel quantity and adjusting engine, so that it may to increase the output power of engine.
Increasingly increase with user to engine power performance, economy demand, the more and more quilt of turbocharging technology
It applies on various engines, wherein the booster with exhaust gas door is widely used.The bushing of such scroll assembly with
The installation of volute bush hole is to coordinate (H7/u6) using cylindrical interference, needs to be pressed into using limiting tool in actual assembly
Bushing ensures that bushing is emerged highly with this；Gasoline engine is also needed to knock in cylinder spacer pin, to ensure bushing in Operation Conditions
At a high temperature of be not in axial float, interference fit failure.Obviously, there are complicated, assembly is numerous for traditional assembling structure
The trivial disadvantage low with efficiency of assembling.
Utility model content
The purpose of this utility model is to provide a kind of turbine casing linings for turbocharger to cover assembling structure, existing to solve
Have in technology and there is a problem of that assembly is cumbersome in turbine casing lining set assembling structure.
For this purpose, the utility model uses following technical scheme：
A kind of turbine casing lining for turbocharger covers assembling structure comprising volute, rocking arm air door, transition rocker arm plate and
Volute bushing, the rocking arm air door are set to by turbine casing lining set on the volute, and the transition rocker arm plate is installed on described shake
The outer end of arm air door, wherein be connected using interference thread between the volute bushing and the volute, and the volute
The outer end of bushing is provided with for ensureing that volute bushing is emerged the limited step of height, and the outer diameter of the limited step is more than institute
State the outer diameter of volute bushing.
Particularly, the outer-hexagonal positioning section of cooperation spanner is provided on the outer wall of the limited step.
Particularly, the volute bushing is provided with the chamfering convenient for its assembly relative to the other end of setting limited step.
Particularly, external screw thread is provided on the outer wall of the volute bushing, the tooth bottom of external screw thread tooth form is round and smooth connection
The least radius of curve, tooth bottom circular arc is not less than 0.125P.
The beneficial effects of the utility model are the turbine casing lining set assembly for turbocharger compared with prior art
The characteristic of interference thread cooperation is utilized in structure, can effectively prevent the axial float of bushing, therefore can cancel on original volute
Straight pin；In addition volute bushing carries limited step, and volute is screwed at the defined torque using sleeve torque wrench,
It can guarantee that bushing is emerged highly, be not necessarily to limiting tool.It is not only simple in structure, it is easy to accomplish；And substantially increase live dress
With efficiency.
Description of the drawings
Fig. 1 is the knot that the turbine casing lining for turbocharger that specific embodiment of the present invention provides covers assembling structure
Structure schematic diagram；
Fig. 2 is the whirlpool that the turbine casing lining for turbocharger that specific embodiment of the present invention provides covers assembling structure
The side view of hub plate set；
Fig. 3 is the whirlpool that the turbine casing lining for turbocharger that specific embodiment of the present invention provides covers assembling structure
The sectional view of hub plate set.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Shown in please referring to Fig.1 to Fig.3, in the present embodiment, a kind of turbine casing lining for turbocharger covers assembling structure packet
Volute 1, rocking arm air door 2, transition rocker arm plate 3 and volute bushing 4 are included, the rocking arm air door 2 is set to described by volute bushing 4
On volute 1, the transition rocker arm plate 3 is installed on the outer end of the rocking arm air door 2, and outer spiral shell is provided on the volute bushing 4
Line section 40, corresponding to internal thread hole is offered on the volute 1, the external thread section 40 uses interference spiral shell with the internal thread hole
Line is connected, and interference fit screw thread refers to the screw thread for having in central diameter after internal and external screw thread coordinates interference fit property, this
Fit form need not use any auxiliary to lock.It is interference fitted the setting of thread size, within answering in principle, externally threaded material
The requirement to torque of material and product determines the size of the pitch diameter of thread, and wherein maximum interference should be limited to external screw thread and not twisted off, be interior
Bolt is not split up；And minimum interference then ensures that spiral marking connection does not loosen.The basic profile of interference fit screw thread should meet GB/T
192 regulation, the tooth bottom that external thread section 40 designs tooth form are the curve of round and smooth connection, and the least radius of tooth bottom circular arc cannot be less than
0.125P。
The outer end of the volute bushing 4 is provided with for ensureing that volute bushing 4 is emerged the limited step 41 of height, described
The outer diameter of limited step 41 is more than the outer diameter of the volute bushing 4, and cooperation spanner is provided on the outer wall of the limited step 41
Outer-hexagonal positioning section 42.The volute bushing 4 is provided with relative to the other end of setting limited step 41 convenient for its assembly
The setting of chamfering 43, limited step 41 is not only able to through outer-hexagonal positioning section 42 using sleeve torque wrench in defined torque
By volute bushing 4, it screws in volute and can guarantee that bushing is emerged highly (3mm) again under (36N.m), is not necessarily to limiting tool.
Above example is to elaborate the basic principle and characteristic of the utility model, and the utility model is not by above-mentioned example
Limitation, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various changes, these changes
Change and change and both falls in claimed the scope of the utility model.The utility model requires protection scope is wanted by appended right
Ask book and its equivalent thereof.
Claims (4)
1. a kind of turbine casing lining for turbocharger covers assembling structure comprising volute, rocking arm air door, transition rocker arm plate and whirlpool
Hub plate set, the rocking arm air door are set to by turbine casing lining set on the volute, and the transition rocker arm plate is installed on the rocking arm
The outer end of air door, which is characterized in that be connected using interference thread between the volute bushing and the volute, and described
The outer end of volute bushing is provided with for ensureing that volute bushing is emerged the limited step of height, and the outer diameter of the limited step is big
In the outer diameter of the volute bushing.
2. the turbine casing lining according to claim 1 for turbocharger covers assembling structure, which is characterized in that the limit
The outer-hexagonal positioning section of cooperation spanner is provided on the outer wall of step.
3. the turbine casing lining according to claim 1 for turbocharger covers assembling structure, which is characterized in that the volute
Bushing is provided with the chamfering convenient for its assembly relative to the other end of setting limited step.
4. the turbine casing lining according to claim 1 for turbocharger covers assembling structure, which is characterized in that the volute
External screw thread is provided on the outer wall of bushing, the tooth bottom of external screw thread tooth form is the curve of round and smooth connection, the least radius of tooth bottom circular arc
Not less than 0.125P.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721859280.7U CN207847711U (en) | 2017-12-26 | 2017-12-26 | A kind of turbine casing lining for turbocharger covers assembling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721859280.7U CN207847711U (en) | 2017-12-26 | 2017-12-26 | A kind of turbine casing lining for turbocharger covers assembling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207847711U true CN207847711U (en) | 2018-09-11 |
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ID=63419091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721859280.7U Active CN207847711U (en) | 2017-12-26 | 2017-12-26 | A kind of turbine casing lining for turbocharger covers assembling structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207847711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027598A (en) * | 2021-03-31 | 2021-06-25 | 安徽江淮汽车集团股份有限公司 | Turbocharger and engine system of automobile |
-
2017
- 2017-12-26 CN CN201721859280.7U patent/CN207847711U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027598A (en) * | 2021-03-31 | 2021-06-25 | 安徽江淮汽车集团股份有限公司 | Turbocharger and engine system of automobile |
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