CN104088961B - The balance shaft apparatus of a kind of variable installation phase place and installation method - Google Patents
The balance shaft apparatus of a kind of variable installation phase place and installation method Download PDFInfo
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- CN104088961B CN104088961B CN201410299146.0A CN201410299146A CN104088961B CN 104088961 B CN104088961 B CN 104088961B CN 201410299146 A CN201410299146 A CN 201410299146A CN 104088961 B CN104088961 B CN 104088961B
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Abstract
The invention discloses the balance shaft apparatus of a kind of variable installation phase place and installation method, relate to trunnion shaft technical field, for solving the technical problem of the timing installation accuracy difference of trunnion shaft。The balance shaft apparatus of described variable installation phase place includes: can be fixed on the fixed mount on engine cylinder-body, be located at the hold-down mechanism on fixed mount；Wherein, hold-down mechanism includes: be fixedly mounted on the driving device on fixed mount, with the compressor arm that driving device is in transmission connection, it is right that of the trunnion shaft on one end of described compressor arm and engine cylinder-body rectifies, and can withstand on one end of trunnion shaft under the driving of driving device with stable equilibrium axle。The installation method of the balance shaft apparatus of described variable installation phase place includes utilizing the balance shaft apparatus of above-mentioned variable installation phase place to fix trunnion shaft, and the timing to complete trunnion shaft is installed。The balance shaft apparatus of variable installation phase place provided by the invention and installation method are for improving the timing installation accuracy of trunnion shaft, thus ensureing the counterbalance effect of trunnion shaft。
Description
Technical field
The present invention relates to trunnion shaft technical field, particularly relate to balance shaft apparatus and the installation method of a kind of variable installation phase place。
Background technology
Trunnion shaft is a kind of with balance weight (eccentric weight) and the axle that rotates with crankshaft-synchronous, the direction vibration force that balance weight produces is utilized to come two-stage reciprocating inertia force and the tilting moment of balanced engine, the vibration and noise of electromotor is reduced, thus improving the comfortableness of driving with this。In existing electromotor, two trunnion shafves and bent axle are separately mounted on the setting position of engine cylinder-body, and by chain, two driven sprockets being respectively and fixedly installed on two trunnion shafves and the drive sprocket that is fixedly mounted on bent axle are in transmission connection, when the crank shaft rotates by two trunnion shaft synchronous axial system of this chain-driving。
In order to ensure the counterbalance effect of trunnion shaft, between trunnion shaft and bent axle, there is strict timing phase angle requirement, if timing phase angular deviation is relatively big, the counterbalance effect of trunnion shaft will be affected。At present, in order to make the timing phase angle between trunnion shaft and bent axle meet design requirement, generally when making trunnion shaft, stamp corresponding timing marks in the setting position of trunnion shaft, then make timing marks on trunnion shaft be directed at the timing marks on bent axle when assembling。Specifically, first casting goes out trunnion shaft blank, then on trunnion shaft blank, the timing marks point of trunnion shaft is got according to the casting roughing standard of trunnion shaft, assembly tooling is relied on to be assemblied on trunnion shaft by driven sprocket timing afterwards, then will be equipped with the trunnion shaft of driven sprocket and be arranged on engine cylinder-body, finally by chain, the driven sprocket on trunnion shaft and the drive sprocket on bent axle are in transmission connection, and require that the timing marks point of chain aligns installation with the timing marks on driven sprocket。
But, present inventor finds, above-mentioned assembling process exists and at least there is following error: one is that trunnion shaft blank itself has molten error, therefore the trunnion shaft center of gravity determined by the casting roughing standard of trunnion shaft can produce deviation with the actual center gravity of trunnion shaft, causes that the point of the timing marks on trunnion shaft and actual timing marks point exist deviation；Two when being be fitted on trunnion shaft by driven sprocket by assembly tooling, causes that the timing marks on driven sprocket can not completely and the aligning of the timing marks of trunnion shaft because frock assembling exists error；Three are after the drive sprocket on the driven sprocket and bent axle that are arranged on trunnion shaft by chain, the timing phase angular error between trunnion shaft and bent axle that stretcher tensioning causes。Above-mentioned all error accumulations cause the timing installation accuracy of trunnion shaft poor (deviation range can reach ± 15 °) together, and namely the timing phase angle between trunnion shaft and bent axle has deviation, thus affecting the counterbalance effect of trunnion shaft。
Summary of the invention
It is an object of the invention to provide the balance shaft apparatus of a kind of variable installation phase place and installation method, for improving the timing installation accuracy of trunnion shaft, thus ensureing the counterbalance effect of trunnion shaft。
To achieve these goals, the present invention provides following technical scheme:
A kind of balance shaft apparatus of variable installation phase place, including:
The fixed mount on engine cylinder-body can be fixed on；
It is located at the hold-down mechanism on described fixed mount, described hold-down mechanism includes: be fixedly mounted on the driving device on described fixed mount, the compressor arm being in transmission connection with described driving device, one end of described compressor arm is rectified right with the one of the trunnion shaft being arranged on described engine cylinder-body, and can withstand on one end of described trunnion shaft under the driving of described driving device with fixing described trunnion shaft。
Preferably, described driving device is fluid pressure drive device, including: it is fixedly mounted on the hydraulic cylinder on described fixed mount, being slidably mounted in described hydraulic cylinder and described hydraulic cylinder inner space is separated into two-part dividing plate, described dividing plate is fixing with one end of described compressor arm described trunnion shaft dorsad to be connected；Wherein,
Described hydraulic cylinder is provided with oil-in, oil-out and the through hole for described compressor arm traverse, and described oil-in and described oil-out lay respectively at the both sides of described dividing plate。
It is preferred that be installed with at least two block in described hydraulic cylinder, and described at least two block lays respectively at the both sides of described dividing plate。
It is preferred that the shape of cross section of described through hole is rectangle, the shape of cross section of corresponding described compressor arm is also rectangle；And/or, the shape of cross section of described hydraulic cylinder inner space is rectangle, and the shape of corresponding described dividing plate is also rectangle。
Preferably, described compressor arm and described trunnion shaft just to one end be provided with compression plate, the cross-sectional area of described compression plate is more than the cross-sectional area of described compressor arm。
Preferably, described fixed mount is triangle fixed mount, and three apex at described triangle fixed mount are respectively provided with a steady pin。
The present invention additionally provides the installation method of the balance shaft apparatus of a kind of variable installation phase place simultaneously, including:
Rotary crankshaft, after making the piston in engine cylinder body be in top dead centre or bottom dead center position, fixing described bent axle；
Being arranged on engine cylinder-body by the trunnion shaft with balance weight, described trunnion shaft is automatic adjustable balance position under the action of gravity of described balance weight；
Integrated sprocket wheel and chain are sleeved on the balance shaft apparatus of any one variable installation phase place that technique scheme carries, the balance shaft apparatus of described variable installation phase place includes: fixed mount and the hold-down mechanism being located on described fixed mount, wherein, described hold-down mechanism includes: be fixedly mounted on the driving device on described fixed mount, and the compressor arm being in transmission connection with described driving device, one end of described compressor arm with the one of the trunnion shaft being arranged on described engine cylinder-body rectify right；Described integrated sprocket wheel includes: can be sleeved on the driven sprocket on described trunnion shaft, fixes with described driven sprocket and is connected and described driven sprocket can be fixed on the chuck on described trunnion shaft；
After described trunnion shaft is in static balance, described fixed mount is fixed on engine cylinder-body, and makes one end of described compressor arm withstand on one end of described trunnion shaft by described driving device, fixing described trunnion shaft；
Described integrated sprocket wheel is sleeved on trunnion shaft but does not fix, make described integrated sprocket wheel can rotate relative to described trunnion shaft；
Described chain is arranged on the drive sprocket of described driven sprocket and described bent axle, so that described driven sprocket and described drive sprocket are in transmission connection；
Stretcher is fixedly mounted on engine cylinder-body, and utilizes described stretcher to make described chain tension；
Described locking chuck is fixed on trunnion shaft, so that described driven sprocket is fixed on described trunnion shaft；
What release described bent axle and described trunnion shaft is fixing, removes described fixed mount from described engine cylinder-body, and the timing completing described trunnion shaft is installed。
Preferably, described bent axle is fixed by the balance shaft apparatus of described variable installation phase place。
When the balance shaft apparatus utilizing above-mentioned variable installation phase place is balanced axle timing installation, first rotary crankshaft makes engine piston be in top dead centre or bottom dead center position fixed crankshaft；Then being arranged on engine cylinder-body without the trunnion shaft of driven sprocket, trunnion shaft is automatic adjustable balance position under the action of gravity that balance weight produces；Fixed being arranged on engine cylinder-body and being fitted without the trunnion shaft of driven sprocket by the driving device on fixed mount and compressor arm afterwards, to prevent trunnion shaft from rotating；Next the integrated sprocket wheel including chuck and driven sprocket is sleeved on trunnion shaft but does not fix, chain is arranged on the drive sprocket of driven sprocket and bent axle, and by stretcher by chain tension；Then driven sprocket is fixed on trunnion shaft by locking chuck, releases to the fixing of bent axle and trunnion shaft and after removing fixed mount, and the timing completing trunnion shaft is installed。
From such scheme, in the timing installation process of trunnion shaft, utilize trunnion shaft to be issued to statically balanced position in balance weight action of gravity and be the timing position of trunnion shaft, the crank position utilizing piston corresponding when being in top dead centre or bottom dead center position is the timing position of bent axle, therefore, after on the parts that chain and stretcher are arranged on correspondence, again driven sprocket is fixed on trunnion shaft, both the timing phase angle between trunnion shaft and bent axle can have been ensured, ensure that the timing phase angle between trunnion shaft and driven sprocket, compared with the timing mounting means of the trunnion shaft that background technology carries, it is greatly reduced the timing phase angular deviation produced when trunnion shaft is installed, thus improve the timing installation accuracy of trunnion shaft, and then can ensure that the counterbalance effect of trunnion shaft。
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention。In the accompanying drawings:
The structural representation of the balance shaft apparatus of the variable installation phase place that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is the structural representation of driving device and compressor arm in Fig. 1；
The flow chart of the installation method of the balance shaft apparatus of the variable installation phase place that Fig. 3 provides for the embodiment of the present invention；
Fig. 4 is the timing installation assembly figure of trunnion shaft；
Fig. 5 is the structural representation of integrated sprocket wheel in Fig. 4；
Fig. 6 is the structural representation of trunnion shaft in Fig. 4；
Fig. 7 is the structural representation of Fig. 4 intermediate bushing。
Accompanying drawing labelling:
10-fixed mount, 11-steady pin,
20-driving device, 21-hydraulic cylinder,
22-dividing plate, 23-oil-in,
24-oil-out, 25-block,
30-compressor arm, 31-compression plate,
40-trunnion shaft, 41-driven sprocket,
42-chuck, 43-axle journal,
44-second shaft shoulder, 45-first shaft shoulder,
46-bearing shell, 47-oil storage tank,
48-oil filler, 50-chain,
60-stretcher。
Detailed description of the invention
In order to further illustrate balance shaft apparatus and the installation method of the variable installation phase place that the embodiment of the present invention provides, it is described in detail below in conjunction with Figure of description。
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of the description present invention and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention。
Referring to Fig. 1 and Fig. 2, the balance shaft apparatus of the variable installation phase place that the embodiment of the present invention provides includes: the fixed mount 10 that can be fixed on engine cylinder-body, is located at the hold-down mechanism on fixed mount 10；Wherein, hold-down mechanism includes: be fixedly mounted on the driving device 20 on fixed mount 10, the compressor arm 30 being in transmission connection with driving device 20, one end of compressor arm 30 is rectified right with the one of the trunnion shaft being arranged on engine cylinder-body, and can withstand on one end of trunnion shaft under the driving of driving device 20 to fix this trunnion shaft。
When the balance shaft apparatus utilizing above-mentioned variable installation phase place is balanced axle timing installation, first rotary crankshaft makes engine piston be in top dead centre or bottom dead center position fixed crankshaft；Then being arranged on engine cylinder-body without the trunnion shaft of driven sprocket, trunnion shaft is automatic adjustable balance position under the action of gravity that balance weight produces；Fixed being arranged on engine cylinder-body and being fitted without the trunnion shaft of driven sprocket by the driving device 20 on fixed mount 10 and compressor arm 30 afterwards, to prevent trunnion shaft from rotating；Next the integrated sprocket wheel including chuck and driven sprocket is sleeved on trunnion shaft but does not fix, chain is arranged on the drive sprocket of driven sprocket and bent axle, and by stretcher by chain tension；Then driven sprocket is fixed on trunnion shaft by locking chuck, releases to the fixing of bent axle and trunnion shaft and after removing fixed mount 10, and the timing completing trunnion shaft is installed。
From such scheme, in the timing installation process of trunnion shaft, utilize trunnion shaft to be issued to statically balanced position in balance weight action of gravity and be the timing position of trunnion shaft, the crank position utilizing piston corresponding when being in top dead centre or bottom dead center position is the timing position of bent axle, therefore, after on the parts that chain and stretcher are arranged on correspondence, again driven sprocket is fixed on trunnion shaft, both the timing phase angle between trunnion shaft and bent axle can have been ensured, ensure that the timing phase angle between trunnion shaft and driven sprocket, compared with the timing mounting means of the trunnion shaft that background technology carries, it is greatly reduced the timing phase angular deviation produced when trunnion shaft is installed, thus improve the timing installation accuracy of trunnion shaft, and then can ensure that the counterbalance effect of trunnion shaft。
In addition, because not needing the timing marks of labelling trunnion shaft, decrease on trunnion shaft, beat timing marks, and when trunnion shaft is installed in timing also without the timing marks between the timing marks aligned between trunnion shaft and driven sprocket, trunnion shaft and bent axle, such that it is able to improve the timing installation effectiveness of trunnion shaft, but also the cost that trunnion shaft timing is installed can be reduced。
When being embodied as, above-mentioned fixed mount 10 can be rectangle fixed mount, triangle fixed mount or other polygon fixed mount, in a preferred embodiment, in order to make fixed mount 10 have preferably stability, and for the ease of fixed mount 10 is fixedly mounted on engine cylinder-body, fixed mount 10 is triangle fixed mount, and is respectively provided with a steady pin 11 at three apex of triangle fixed mount；Accordingly, engine cylinder-body is provided with three pin-and-holes matched with three steady pins 11, is inserted by these three steady pin 11 in three pin-and-holes of engine cylinder-body and can be fixedly mounted on engine cylinder-body by fixed mount 10。
Above-mentioned driving device 20 is preferably fluid pressure drive device, including: it is fixedly mounted on the hydraulic cylinder 21 on fixed mount 10, being slidably mounted in hydraulic cylinder 21 and hydraulic cylinder 21 inner space is separated into two-part dividing plate 22, dividing plate 22 is fixing with one end of compressor arm 30 trunnion shaft dorsad to be connected；Wherein, hydraulic cylinder 21 is provided with oil-in 23, oil-out 24 and the through hole (not indicating in figure) for compressor arm traverse, and oil-in 23 and oil-out 24 lay respectively at the both sides of dividing plate 22。When hydraulic oil is poured the cylinder space being positioned at (oil-in 23 side) on the left of dividing plate 22 in hydraulic cylinder 21 from oil-in 23, dividing plate 22 moves right under the compressing of hydraulic oil in hydraulic cylinder 21, thus driving compressor arm 30 to move forward；When hydraulic oil is from when pouring the cylinder space of (oil-out 24 side) on the right side of hydraulic cylinder 21 in oil-out 24, dividing plate 22 is moved to the left under the compressing of hydraulic oil in hydraulic cylinder 21, thus moving after driving compressor arm 30。It is noted that above-mentioned driving device 20 is not limited to fluid pressure drive device, it is also possible to for actuating device of atmospheric pressure or motor driver。
In order to prevent damaging compressor arm 30 by pressure because of the excessive movement of dividing plate 22, it is preferable that be installed with at least two block 25 in hydraulic cylinder 21, and at least two block 25 lays respectively at the both sides of dividing plate 22。With continued reference to Fig. 2, in the present embodiment, in hydraulic cylinder 21, there are eight blocks 25, are respectively provided with four blocks 25 in the both sides of dividing plate 22, the dividing plate 22 moving range in hydraulic cylinder 21 can be limited, such that it is able to avoid damaging compressor arm 30 because dividing plate 22 moves excessive by these eight blocks 25。
In order to prevent trunnion shaft in the process by compressor arm 30 stable equilibrium axle from rotating, it is necessary to ensure that compressor arm 30 does not rotate。Please continue to refer to Fig. 2, in a preferred embodiment, hydraulic cylinder 21 supplying the shape of cross section of the through hole of compressor arm 30 traverse be designed to rectangle, the shape of cross section of corresponding compressor arm 30 is also rectangle；And/or, the shape of cross section of hydraulic cylinder 21 inner space is rectangle, and the shape of corresponding dividing plate 22 is also rectangle。Be so designed that, it is possible to prevent compressor arm 30 reach or after move past in journey and rotate, such that it is able to avoid compressor arm 30 to make trunnion shaft rotate when compressing trunnion shaft, and then can ensure that the timing installation accuracy of trunnion shaft。
Please continue to refer to Fig. 2, in order to make trunnion shaft uniform force at compressor arm after on trunnion shaft withstanding on, it is preferable that compressor arm 30 and trunnion shaft just to one end be provided with compression plate 31, the cross-sectional area of compression plate 31 is more than the cross-sectional area of compressor arm 30；Trunnion shaft uniform force is carried out, thus ensureing that trunnion shaft does not rotate in the process by compressor arm 30 stable equilibrium axle by increasing the mode of contact area。
Refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the embodiment of the invention also discloses the installation method of the balance shaft apparatus of a kind of variable installation phase place, including:
Step 101, rotary crankshaft, after making the piston in engine cylinder body be in top dead centre or bottom dead center position, fixing described bent axle；
When piston is in dead-centre position (top dead centre or bottom dead center position), bent axle present position is the timing position of bent axle。
Step 102, being arranged on engine cylinder-body by the trunnion shaft 40 with balance weight, trunnion shaft 40 is automatic adjustable balance position under the action of gravity of described balance weight；
Utilizing the position of the action of gravity automatic adjustable balance axle 40 of balance weight, make trunnion shaft 40 progressively reach static balance, when trunnion shaft 40 reaches static balance, the center of gravity of balance weight is straight down。
Step 103, integrated sprocket wheel and chain 50 are sleeved on the balance shaft apparatus of the variable installation phase place that technique scheme carries, the balance shaft apparatus of described variable installation phase place includes: fixed mount 10 and the hold-down mechanism being located on fixed mount 10, wherein, described hold-down mechanism includes: be fixedly mounted on the driving device 20 on fixed mount 10, and the compressor arm 30 being in transmission connection with driving device 20, compressor arm 30 one end with the one of the trunnion shaft 40 being arranged on engine cylinder-body rectify right；Integrated sprocket wheel includes: can be sleeved on the driven sprocket 41 on trunnion shaft 40, the chuck 42 that be connected and can by driven sprocket 41 be fixed on trunnion shaft 40 on fixing with driven sprocket 41；
Step 104, after trunnion shaft 40 is in static balance, fixed mount 10 is fixed on engine cylinder-body, and makes one end of compressor arm 30 withstand on one end of trunnion shaft 40 by the driving device 20 on fixed mount 10, stable equilibrium axle 40；
Trunnion shaft 40 is issued to statically balanced position in balance weight action of gravity and is the timing position of trunnion shaft 40, therefore, makes trunnion shaft 40 be in timing position after utilizing driving device 20 and compressor arm 30 stable equilibrium axle 40；It is to say, now trunnion shaft 40 and bent axle are all in timing position。
Step 105, integrated sprocket wheel is sleeved on trunnion shaft 40 but does not fix, make integrated sprocket wheel to rotate by relative equilibrium axle 40；
Step 106, chain 50 is arranged on the drive sprocket of driven sprocket 41 and bent axle, so that driven sprocket 41 and drive sprocket are in transmission connection；
Step 107, stretcher 60 is fixedly mounted on engine cylinder-body, and utilizes stretcher 60 to make chain 60 tensioning；
In step 101 to step 104, determine the timing position of trunnion shaft 40 and bent axle, and trunnion shaft 40 and bent axle have maintained static dynamic all, therefore after chain 50 being arranged on the drive sprocket of driven sprocket 41 and bent axle, stretcher 60 is fixedly mounted on engine cylinder-body, it is ensured that timing phase angle between trunnion shaft 40 and bent axle。
Step 108, chuck 42 is locked on trunnion shaft 40, so that driven sprocket 41 is fixed on trunnion shaft 40；
After on the parts that chain and stretcher are arranged on correspondence, then driven sprocket is fixed on trunnion shaft 40, both can ensure the timing phase angle between trunnion shaft 40 and bent axle, ensure that the timing phase angle between trunnion shaft 40 and driven sprocket。
Step 109, release bent axle and trunnion shaft 40 fixing, from engine cylinder-body, remove fixed mount 10, the timing completing trunnion shaft 40 is installed。
When being embodied as, referring to Fig. 6 and Fig. 7, above-mentioned trunnion shaft 40 includes: body, is positioned at first shaft shoulder 45 of body rear end, is positioned at body front end for installing the axle journal 43 of integrated sprocket wheel, and is positioned at second shaft shoulder 44 of axle journal 43 one end towards first shaft shoulder 45；When trunnion shaft is arranged on engine cylinder-body, the rear end of body is inserted in the bearing shell 46 of engine cylinder-body, this bearing shell 46 is provided with oil filler 48 and oil storage tank 47, trunnion shaft can be lubricated, consequently facilitating trunnion shaft 40 is issued to static balance (balance weight is in free overhang) in balance weight action of gravity。
Above-mentioned chuck 42 can be scroll chuck or six dog chucks, and in chuck 42, chucking claw can move to be fixed on trunnion shaft 40 driven sprocket 41 simultaneously。
In the installation method of the balance shaft apparatus of above-mentioned variable installation phase place, above-mentioned bent axle is fixed preferably by the balance shaft apparatus of described variable installation phase place, and concrete fixation procedure is basically identical with stable equilibrium axle process, so not repeating。
It is noted that the timing that the balance shaft apparatus of above-mentioned variable installation phase place and installation method are applicable to the singly balanced axle of electromotor, double balance shaft or many trunnion shafves is installed。
In the description of above-mentioned embodiment, specific features, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example。
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention。Therefore, protection scope of the present invention should described be as the criterion with scope of the claims。
Claims (7)
1. the installation method of the balance shaft apparatus of a variable installation phase place, it is characterised in that including:
Rotary crankshaft, after making the piston in engine cylinder body be in top dead centre or bottom dead center position, fixing described bent axle；
Being arranged on described engine cylinder-body by the trunnion shaft with balance weight, described trunnion shaft is automatic adjustable balance position under the action of gravity of described balance weight；
Integrated sprocket wheel and chain are sleeved on the balance shaft apparatus of variable installation phase place, the balance shaft apparatus of described variable installation phase place includes: fixed mount and the hold-down mechanism being located on described fixed mount, wherein, described hold-down mechanism includes: be fixedly mounted on the driving device on described fixed mount, and the compressor arm being in transmission connection with described driving device, one end of described compressor arm with the one of the trunnion shaft being arranged on described engine cylinder-body rectify right；Described integrated sprocket wheel includes: can be sleeved on the driven sprocket on described trunnion shaft, fixes with described driven sprocket and is connected and described driven sprocket can be fixed on the chuck on described trunnion shaft；
After described trunnion shaft is in static balance, described fixed mount is fixed on engine cylinder-body, and makes one end of described compressor arm withstand on one end of described trunnion shaft by described driving device, fixing described trunnion shaft；
Described integrated sprocket wheel is sleeved on trunnion shaft but does not fix, make described integrated sprocket wheel can rotate relative to described trunnion shaft；
Described chain is arranged on the drive sprocket of described driven sprocket and described bent axle, so that described driven sprocket and described drive sprocket are in transmission connection；
Stretcher is fixedly mounted on engine cylinder-body, and utilizes described stretcher to make described chain tension；
Described locking chuck is fixed on trunnion shaft, so that described driven sprocket is fixed on described trunnion shaft；
What release described bent axle and described trunnion shaft is fixing, removes described fixed mount from described engine cylinder-body, and the timing completing described trunnion shaft is installed。
2. the installation method of the balance shaft apparatus of variable installation phase place according to claim 1, it is characterised in that described bent axle is fixed by the balance shaft apparatus of described variable installation phase place。
3. the installation method of the balance shaft apparatus of variable installation phase place according to claim 1, it is characterized in that, described driving device is fluid pressure drive device, including: it is fixedly mounted on the hydraulic cylinder on described fixed mount, being slidably mounted in described hydraulic cylinder and described hydraulic cylinder inner space is separated into two-part dividing plate, described dividing plate is fixing with one end of described compressor arm described trunnion shaft dorsad to be connected；Wherein,
Described hydraulic cylinder is provided with oil-in, oil-out and the through hole for described compressor arm traverse, and described oil-in and described oil-out lay respectively at the both sides of described dividing plate。
4. the installation method of the balance shaft apparatus of variable installation phase place according to claim 3, it is characterised in that be installed with at least two block in described hydraulic cylinder, and described at least two block lays respectively at the both sides of described dividing plate。
5. the installation method of the balance shaft apparatus of variable installation phase place according to claim 3, it is characterised in that the shape of cross section of described through hole is rectangle, the shape of cross section of corresponding described compressor arm is also rectangle；And/or, the shape of cross section of described hydraulic cylinder inner space is rectangle, and the shape of corresponding described dividing plate is also rectangle。
6. the installation method according to the balance shaft apparatus of described variable installation phase place arbitrary in claim 1-5, it is characterized in that, described compressor arm and described trunnion shaft just to one end be provided with compression plate, the cross-sectional area of described compression plate is more than the cross-sectional area of described compressor arm。
7. the installation method of the balance shaft apparatus of variable installation phase place according to claim 1, it is characterised in that described fixed mount is triangle fixed mount, three apex at described triangle fixed mount are respectively provided with a steady pin。
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| CN201410299146.0A CN104088961B (en) | 2014-06-27 | 2014-06-27 | The balance shaft apparatus of a kind of variable installation phase place and installation method |
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| CN202292589U (en) * | 2011-09-29 | 2012-07-04 | 长城汽车股份有限公司 | Oil seal installation tool for engine |
| CN202847373U (en) * | 2012-10-29 | 2013-04-03 | 上汽依维柯红岩商用车有限公司 | Balance shaft support |
| CN203357375U (en) * | 2013-06-06 | 2013-12-25 | 河南中汇汽车零部件有限公司 | Gear retracting tool for balance shaft |
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| Publication number | Publication date |
|---|---|
| CN104088961A (en) | 2014-10-08 |
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