CN106870714A - Dual Over Head Camshaft diesel engine backlash adjusts instrument and method - Google Patents
Dual Over Head Camshaft diesel engine backlash adjusts instrument and method Download PDFInfo
- Publication number
- CN106870714A CN106870714A CN201710109067.2A CN201710109067A CN106870714A CN 106870714 A CN106870714 A CN 106870714A CN 201710109067 A CN201710109067 A CN 201710109067A CN 106870714 A CN106870714 A CN 106870714A
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- support arm
- gear
- camshaft
- positioning boss
- cam shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
- F16H2057/125—Adjustment of backlash during mounting or assembly of gearing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
A kind of Dual Over Head Camshaft diesel engine backlash adjusts instrument, including support arm, left support arm, right support arm, one end of support arm is provided with a positioning boss, the other end of support arm is connected with hinged disk, No. two positioning boss are provided with hinged disk, left support arm, one end of right support arm are hinged with hinged disk, and left support arm, the other end of right support arm are provided with locating piece, and the bottom of locating piece is provided with location hole；When backlash is adjusted, in No. two wheel bores of positioning boss insertion camshaft idle gear, in a number hub-eccentric hole for idler gear of a positioning boss insertion, location hole is nested and is fixed on two camshafts of cam shaft gear of installation, afterwards, fixed camshaft idle gear simultaneously rotates an idler gear near No. two one end of positioning boss, and an idler gear is fixed when gear clearance meets to be required.The design can not only disposably adjust multiple gear clearances of Dual Over Head Camshaft diesel engine, and simple structure, easy to operate.
Description
Technical field
The present invention relates to gear clearance regulation instrument, more particularly to a kind of Dual Over Head Camshaft diesel engine backlash regulation instrument
And method, it is primarily adapted for use in multiple gear clearances of disposable regulation Dual Over Head Camshaft diesel engine.
Background technology
The high-power diesel engine valve actuating mechanism of current volume production is driven using Single Over Head Camshaft mostly, Dual Over Head Camshaft
Using less, easily regulation side still planless to the regulation of gear drive type Dual Over Head Camshaft diesel engine backlash
Formula.In existing technology, the regulative mode of Dual Over Head Camshaft gear train backlash mainly has following two：1st, gear is installed
Position is limited by the cylindrical positioning boss of wheel hub, is entirely limited its planar degrees of freedom, and backlash is ensured by installing and processing；2nd, exist
" 1 " shape groove is opened on body, the left and right movement of wheel hub is limited, it is allowed to move up and down, position, it is ensured that backlash.Both backlash regulation sides
The major defect of formula is：1st, the application of positive stop lug boss is completely fixed the position of gear, does not possess controllability, by installing and adding
Work ensures backlash, and general difficulty is larger, and volume production Gear Processing precision satisfaction is required, uniformity is poor, gray iron etc. related zero
Component processing error and alignment error cause camshaft idle gear and the distribution of two cam shaft gear backlash uneven, idle gear wheel
The dynamic stress of tooth deteriorates, and reliability can not be guaranteed；2nd, " 1 " shape groove realizes gear and is initially installing to a certain extent
The controllability of backlash during with wheel odontotripsis, but one direction regulation can not solve two cam shaft gears because of cylinder body, cylinder
The position skew that the parts alignment errors such as lid and mismachining tolerance are produced.
Chinese patent, application publication number is CN104235313A, and Shen Qing Publication day is that the invention on December 24th, 2014 is public
A kind of backlash adjusting method and gear mechanism are driven, idle pulley is compacted relative to first gear and second gear across film
To the position of engagement, afterwards, by extracting film out, so as between first gear, second gear and idle pulley, be formed with and film
The corresponding appropriate backlash of thickness.Although the invention can reduce the cost of backlash regulation, it is still present following defect：
The gear quantity that the invention can simultaneously adjust backlash is three, and in addition to idler gear, remaining two gear must be fixed, otherwise
Can only be adjusted one by one, meanwhile, backlash being determined using film, can be moved in mounting plane with carrier wheel, run into position
The gear being blocked, its regulation is restricted, and such design can not disposably adjust more gear clearances, and cumbersome.
The content of the invention
The purpose of the present invention is to overcome disposably adjust multiple gear clearances present in prior art, and is operated numerous
A kind of trivial defect and problem, there is provided multiple gear clearances that can disposably adjust Dual Over Head Camshaft diesel engine, and structure letter
The regulation of Dual Over Head Camshaft diesel engine backlash instrument and method single, easy to operate.
To realize object above, technical solution of the invention is：A kind of Dual Over Head Camshaft diesel engine backlash regulation
Instrument, backlash regulation instrument includes support arm, left support arm, right support arm, and one end of the support arm is provided with mutually hangs down with it
A straight positioning boss, the other end of support arm is connected with hinged disk, is provided with hinged disk orthogonal No. two with its
Positioning boss, the left support arm, one end of right support arm are hinged with hinged disk, the left support arm, right support arm the other end it is equal
Locating piece is provided with, the locating piece is mutually vertical with left support arm, right support arm, and the bottom of locating piece is provided with location hole.
The support arm include support bar, support column, No. two support columns, one end of a support column with No. one
Positioning boss is connected, and other end for support column is vertical with one end of support bar to be connected, the other end of support bar be hinged
Disk is connected, and hinged disk is vertical with one end of No. two support columns to be connected, and the other end of No. two support columns is vertically connected with location-plate,
Location-plate is vertical with No. two positioning boss to be connected.
The hinged disk is cylindrical structural, and the outer peripheral face of the hinged disk is connected with support bar, the hinged disk
The position that hinged disk is connected with support bar is located remotely from outer peripheral face and sets fluted, be provided with the end face of the hinged disk
Hinge hole, the left support arm, right support arm are hinged after inserting groove by hinge hole and hinged disk.
The left support arm, right support arm include branch armed lever and support arm post, and the locating piece includes a positioning being connected
Block and No. two locating pieces, one end of the branch armed lever offer mounting hole, and articulated elements is passed through by mounting hole after end insertion groove
It is hinged with hinge hole, the other end of the branch armed lever is vertical with one end of support arm post to be connected, the other end of support arm post and No. one
The end face of locating piece is vertically connected, and the location hole is opened on an other end for locating piece.
The bottom of No. two locating pieces is provided with No. three positioning boss, and eccentric fixture is provided with No. three positioning boss,
The eccentric fixture includes base plate and hyoplastron, and boss and bearing are provided with the base plate, and bolt hole is offered on the boss,
Eccentric rod is arranged with the bearing, one end of the hyoplastron is provided with a baffle plate, and the other end of hyoplastron is provided with No. two gears
Plate, No. two baffle plates are in contact with the eccentric cam of eccentric rod, on the hyoplastron near a baffle plate position be provided with positioning it is recessed
Groove, No. three positioning boss are connected after passing detent with bolt hole.
A kind of Dual Over Head Camshaft diesel engine backlash adjusting method, the Dual Over Head Camshaft diesel engine includes a cam
Shaft gear, No. two cam shaft gears, an idler gear, No. two idler gears and with a cam shaft gear, No. two cams
The camshaft idle gear that shaft gear is meshed, No. two idler gears are located remotely from one installed in camshaft idle gear side
The position of number cam shaft gear, No. two cam shaft gears, one is provided between the camshaft idle gear and No. two idler gears
Number idler gear, an idler gear is meshed with camshaft idle gear, No. two idler gears, using described above
Backlash regulation instrument carries out backlash regulation, and the backlash adjusting method is comprised the following steps：
A number cam shaft gear is first respectively mounted with No. two cam shaft gears and is fixed on the convex of Dual Over Head Camshaft diesel engine
On wheel shaft, then camshaft idle gear, an idler gear, No. two idler gears are placed in predetermined installation site, and by peace
Dress bolt fixes No. two idler gears, during then No. two positioning boss to be inserted the wheel bores of camshaft idle gear respectively, one
Number positioning boss is inserted in a hub-eccentric hole for idler gear, and now, camshaft idle gear is moved freely in mounting plane,
Again respectively by the location hole of left support arm it is nested and be fixed on install on a camshaft for cam shaft gear, the location hole of right support arm
Nesting is simultaneously fixed on No. two camshafts of cam shaft gear of installation, and now, the position of camshaft idle gear is fixed, afterwards,
The installation bolt of camshaft idle gear is tightened, an idler gear is then rotated clockwise or counterclockwise near No. two positioning boss
One end, when the gap of an idler gear and camshaft idle gear, No. two idler gears is satisfied by installation requirement, tighten one
The installation bolt of number idler gear, now, the backlash adjusting method terminates.
The bottom of the locating piece is additionally provided with No. three positioning boss, is provided with eccentric fixture on No. three positioning boss, institute
Stating eccentric fixture includes base plate and hyoplastron, and boss and bearing are provided with the base plate, and bolt hole, institute are offered on the boss
State and eccentric rod be arranged with bearing, one end of the hyoplastron is provided with a baffle plate, and the other end of hyoplastron is provided with No. two baffle plates,
No. two baffle plates are in contact with the eccentric cam of eccentric rod, and the position on the hyoplastron near a baffle plate is provided with detent,
No. three positioning boss are connected after passing detent with bolt hole；
The location hole by left support arm it is nested and be fixed on install on a camshaft for cam shaft gear, the positioning of right support arm
Hole is nested and is fixed on No. two camshafts of cam shaft gear of installation and refers to：The location hole of left support arm is first nested in installation one
On the camshaft of number cam shaft gear, the location hole of right support arm be nested on No. two camshafts of cam shaft gear of installation, it is then suitable
Hour hands rotating eccentricity bar, now, the eccentric cam of eccentric rod is moved towards the direction of location hole, to promote hyoplastron towards the side of location hole
To mobile gripping cams axle.
Compared with prior art, beneficial effects of the present invention are：
1st, in a kind of Dual Over Head Camshaft diesel engine backlash regulation instrument of the invention and method backlash regulation instrument include support arm,
Left support arm, right support arm, left support arm, right support arm are hinged by hinged disk and support arm, are adjusted using above-mentioned backlash regulation instrument
During section Dual Over Head Camshaft diesel engine backlash, a cam shaft gear and No. two cam shaft gears are first installed, then camshaft is lazy
Gear, an idler gear, No. two idler gears are placed in predetermined installation site, and No. two idler gears are fixed, Ran Houtong
Cross the gap that backlash regulation instrument adjusts camshaft idle gear and cam shaft gear, No. two cam shaft gears successively, No. one
The gap of idler gear and camshaft idle gear, No. two idler gears, the not only once adjustable double overhead of such design is convex
Multiple gear clearances of wheel shaft diesel engine, and it is simple structure, easy to operate.Therefore, the present invention can not only disposably adjust double
Multiple gear clearances of overhead camshaft diesel engine, and it is simple structure, easy to operate.
2nd, a kind of Dual Over Head Camshaft diesel engine backlash of the invention is adjusted and set on the outer peripheral face of hinged disk in instrument and method
Groove is equipped with, hinge hole is provided with the end face of hinged disk, left support arm, one end of right support arm offer mounting hole, the end is inserted
Mounting hole is hinged with hinge hole by articulated elements after entering groove, such design not only installs simple, and causes backlash
Regulation instrument can adjust polytype Dual Over Head Camshaft diesel engine backlash.Therefore, the present invention installs simple, the scope of application
Extensively.
3rd, a kind of Dual Over Head Camshaft diesel engine backlash of the invention adjusts No. three bottoms of positioning boss in instrument and method
Eccentric fixture is installed, during backlash regulation, when location hole is nested on the camshaft for installing cam shaft gear, up time
Pin rotating eccentricity bar, the eccentric cam of eccentric rod is moved towards the direction of location hole, to promote hyoplastron to be moved towards the direction of location hole
Gripping cams axle, so that the position of camshaft idle gear is fixed, such design is not only easy to operate, and sets up partially
Heart fixture, the installation site of fixed camshaft idle gear that can be relatively reliable, meanwhile, can also expand the use that backlash adjusts instrument
Scope.Therefore, easy to operate, reliability of the invention is high, applied widely.
Brief description of the drawings
Fig. 1 is the structural representation of Dual Over Head Camshaft diesel engine backlash regulation instrument in the present invention.
Fig. 2 is the structural representation of support arm in Fig. 1.
Fig. 3 is the top view of left support arm or right support arm in Fig. 1.
Fig. 4 is the sectional view of left support arm or right support arm in Fig. 1.
Fig. 5 is the schematic diagram of left support arm or right support arm and support arm hinged relationship in Fig. 1.
Fig. 6 is the structural representation of base plate in Fig. 4.
Fig. 7 is the sectional view of Fig. 6.
Fig. 8 is the structural representation of hyoplastron in Fig. 4.
Fig. 9 is the sectional view of Fig. 8.
Figure 10 is to carry out Dual Over Head Camshaft diesel engine backlash using the backlash regulation instrument shown in Fig. 1 in the present invention to adjust
Structural representation.
Figure 11 is the structural representation of Figure 10 convexity wheel shaft idle gears.
Figure 12 is the gap adjustment principle of an idler gear and camshaft idle gear in the present invention, No. two idler gears
Figure.
In figure：Support arm 1, the support column 12, of a support bar 11, positioning boss 13, hinged disk 14, groove 15, hinge
Connect the support column 17 of hole 16, two, location-plate 18, No. two positioning boss 19, left support arm 2, branch armed lever 21, mounting holes 22, locating piece
23rd, 231, No. two locating pieces 232 of a locating piece, 233, No. three positioning boss 234 of location hole, eccentric fixture 24, base plate 241,
Hyoplastron 242, eccentric rod 243, boss 244, bearing 245, the baffle plate 248, detent of baffle plate 247, two of bolt hole 246,
249th, support arm post 25, articulated elements 26, the cam shaft gear 4, two of a right support arm 3, cam shaft gear 5, camshaft idle gear 6,
61, idler gear 7 of wheel bore, hub-eccentric hole 71,73, No. two ends in the end of the center of circle 72,74, No. two idler gears 8.
Specific embodiment
Below in conjunction with brief description of the drawings, the present invention is further detailed explanation with specific embodiment.
Referring to Fig. 1 to Figure 12, a kind of Dual Over Head Camshaft diesel engine backlash adjusts instrument, and backlash regulation instrument includes branch
Brace 1, left support arm 2, right support arm 3, one end of the support arm 1 are provided with and its orthogonal positioning boss 13, branch
The other end of brace 1 is connected with hinged disk 14, be provided with hinged disk 14 with its orthogonal No. two positioning boss 19, it is described
Left support arm 2, one end of right support arm 3 are hinged with hinged disk 14, and the left support arm 2, the other end of right support arm 3 are provided with fixed
Position block 23, the locating piece 23 is mutually vertical with left support arm 2, right support arm 3, and the bottom of locating piece 23 is provided with location hole 233.
The support arm 1 includes the support column 17 of support column 12, two of support bar 11, a support column 12
One end is connected with a positioning boss 13, and other end for support column 12 is vertical with one end of support bar 11 to be connected, and is supported
The other end of bar 11 is connected with hinged disk 14, and hinged disk 14 is vertical with one end of No. two support columns 17 to be connected, No. two support columns
17 other end is vertically connected with location-plate 18, and location-plate 18 is vertical with No. two positioning boss 19 to be connected.
The hinged disk 14 is cylindrical structural, and the outer peripheral face of the hinged disk 14 is connected with support bar 11, the hinge
The position setting fluted 15 that hinged disk 14 is connected with support bar 11, the hinged disk are located remotely from the outer peripheral face for connecing disk 14
Hinge hole 16 is provided with 14 end face, the left support arm 2, right support arm 3 pass through hinge hole 16 and be hinged after inserting groove 15
Disk 14 is hinged.
The left support arm 2, right support arm 3 include branch armed lever 21 and support arm post 25, and the locating piece 23 includes what is be connected
A number locating piece 231 and No. two locating pieces 232, one end of the branch armed lever 21 offer mounting hole 22, end insertion groove 15
Mounting hole 22 is hinged with hinge hole 16 by articulated elements 26 afterwards, the other end of the branch armed lever 21 and one end of support arm post 25
Vertical connection, the other end of support arm post 25 is vertical with the end face of a locating piece 231 to be connected, and the location hole 233 is opened in
On a number other end for locating piece 231.
The bottom of No. two locating pieces 232 is provided with No. three positioning boss 234, is provided with No. three positioning boss 234
Eccentric fixture 24, the eccentric fixture 24 includes base plate 241 and hyoplastron 242, and boss 244 is provided with the base plate 241 with branch
Seat 245, offers bolt hole 246 on the boss 244, eccentric rod 243 is arranged with the bearing 245, the hyoplastron 242
One end is provided with a baffle plate 247, and the other end of hyoplastron 242 is provided with No. two baffle plates 248, No. two baffle plates 248 and eccentric rod 243
Eccentric cam be in contact, the position of a baffle plate 247 is provided with detent 249, described No. three on the hyoplastron 242
Positioning boss 234 is connected after passing detent 249 with bolt hole 246.
A kind of Dual Over Head Camshaft diesel engine backlash adjusting method, the Dual Over Head Camshaft diesel engine includes a cam
7, No. two idler gears 8 of the idler gear of cam shaft gear 5, of shaft gear 4, two and with a cam shaft gear 4, two
The camshaft idle gear 6 that cam shaft gear 5 is meshed, No. two idler gears 8 are arranged on the side of camshaft idle gear 6 position
In away from 4, No. two positions of cam shaft gear 5 of a cam shaft gear, the camshaft idle gear 6 and No. two idler gears 8
Between an idler gear 7 is installed, 6, No. two idler gears 8 of an idler gear 7 and camshaft idle gear are homogeneously nibbled
Close, backlash regulation is carried out using backlash regulation instrument described above, the backlash adjusting method is comprised the following steps：
First a cam shaft gear 4 and No. two cam shaft gears 5 are respectively mounted and Dual Over Head Camshaft diesel engine is fixed on
On camshaft, then the idler gear 8 of idler gear 7, two of camshaft idle gear 6, is placed in predetermined installation site, and led to
Cross installation bolt to fix No. two idler gears 8, then No. two positioning boss 19 are inserted the wheel hub of camshaft idle gear 6 respectively
In hole 61, in a number hub-eccentric hole 71 for idler gear 7 of an insertion of positioning boss 13, now, camshaft idle gear 6 is in peace
Dress plane is moved freely, then by the nesting of location hole 233 of left support arm 2 and is fixed on the convex of number cam shaft gear 4 of installation respectively
On wheel shaft, the location hole of right support arm 3 233 is nested and is fixed on No. two camshafts of cam shaft gear 5 of installation, now, cam
The position of axle idle gear 6 is fixed, and afterwards, tightens the installation bolt of camshaft idle gear 6, then rotates clockwise or counterclockwise
A number idler gear 7 is close to No. two one end of positioning boss 19, when an idler gear 7 and 6, No. two centres of camshaft idle gear
When the gap of gear 8 is satisfied by installation requirement, an installation bolt for idler gear 7 is tightened, now, the backlash adjusting method
Terminate.
The bottom of the locating piece 23 is additionally provided with No. three positioning boss 234, and bias is provided with No. three positioning boss 234
Fixture 24, the eccentric fixture 24 includes base plate 241 and hyoplastron 242, and boss 244 and bearing are provided with the base plate 241
245, bolt hole 246 is offered on the boss 244, eccentric rod 243, the one of the hyoplastron 242 are arranged with the bearing 245
End is provided with a baffle plate 247, and the other end of hyoplastron 242 is provided with No. two baffle plates 248, No. two baffle plates 248 and eccentric rod 243
Eccentric cam is in contact, and the position of a baffle plate 247 is provided with detent 249 on the hyoplastron 242, and described No. three fixed
Position boss 234 is connected after passing detent 249 with bolt hole 246；
The location hole 233 by left support arm 2 is nested and be fixed on a number camshaft for cam shaft gear 4 of installation, right support arm 3
Location hole 233 it is nested and be fixed on No. two camshafts of cam shaft gear 5 of installation and refer to：First by the location hole of left support arm 2
233 are nested on a number camshaft for cam shaft gear 4 of installation, the location hole 233 of right support arm 3 is nested in No. two camshafts of installation
On the camshaft of gear 5, then the eccentric rod 243 that turns clockwise, now, the eccentric cam of eccentric rod 243 is towards the side of location hole 233
To motion, to promote hyoplastron 242 to move gripping cams axle towards the direction of location hole 233.
Principle of the invention is described as follows：
The design provides the instrument and method of a kind of quick regulation Dual Over Head Camshaft diesel engine backlash, regulation tool construction letter
It is single, easy to use, two kinds of adjusting methods are used during regulation simultaneously, disposably the relative gap between five gears of regulation.
Regulation instrument is made up of left support arm, right support arm and the part of support arm three, and left and right support arm one end is connected by hinged disk and support arm
Connect, the eccentric fixture on the other end is used to fix camshaft；Hinged disk is cylindrical structural, is located on the outer peripheral face of hinged disk remote
The position being connected with support bar from hinged disk sets fluted, the C-shaped structure of groove, is located on groove on the end face of hinged disk
Under position offer hinge hole, after left support arm, right support arm insertion groove, articulated elements passes the hinge hole, Zuo right branch of ∕ successively
The right support arms of , Zuo ∕ are fixed after the mounting hole of arm, lower hinge hole can be along groove circular-rotation.Eccentric fixture：Eccentric fixture includes bottom
Plate and hyoplastron, are provided with boss and bearing on base plate, base plate is provided with one section of radian with boss near one end of location hole, with
And a baffle plate is arcuate structure, so design is for being coordinated with location hole, with reliable gripping cams axle；Hyoplastron
Middle detent is nested on No. three positioning boss, and base plate is arranged on hyoplastron outer layer by installation bolt, and hyoplastron can be
Left and right movement therebetween；Eccentric rod is arranged with the middle part of bearing, eccentric rod includes the bar and eccentric cam that are connected, eccentric cam
It is set on bearing, eccentric cam is in contact with No. two baffle plates of curved shape, and when bar stress is moved downward, eccentric cam is to the left
Movement progress hyoplastron is moved to the left gripping cams axle.
Adjusting method is mainly made up of following two parts：
1st, without the backkick backlash adjusting method of positioning：
（1）After a number cam shaft gear and No. two cam shaft gear installations, position is fixed, and sequentially puts the lazy tooth of camshaft
Wheel, idler gear, No. two idler gears to predetermined installation site, No. two positioning boss insertion camshaft of support arm is lazy
In the wheel bore of gear, in a number hub-eccentric hole for idler gear of positioning boss insertion of support arm, the lazy tooth of camshaft
Wheel can be moved freely in mounting plane；
（2）The location hole of left and right support arm is nested on the camshaft for installing cam shaft gear, and is clamped by eccentric fixture；
（3）The position of camshaft idle gear is fixed, and installation bolt is tightened by regulation torque.
The mounting flange of camshaft idle gear departs from cylinder cap, in suspended state, arm length be equal to theoretical center away from,
The alignment error of the parts such as gray iron, camshaft is taken into full account, three physical locations of gear on the premise of backlash is ensured
Determined, tightened the installation bolt of camshaft idle gear.
2nd, the backkick backlash adjusting method based on hub-eccentric hole：
（1）In above-mentioned regulation, No. two positioning boss positions of support arm are fixed, and a hub-eccentric hole site for idler gear is consolidated
It is fixed；
（2）Shun ∕ rotate counterclockwise an idler gear near one end of positioning boss, then the other end then can wide-angle it is inclined
Move；
（3）When gear clearance satisfaction is required, then installation bolt is tightened by regulation torque.
Referring to Figure 10,12, No. two idler gears 8 are limited completely by installation bolt, and one end embedded location of support arm 1 is true
Fixed camshaft idle gear 6 a, idler gear 7 of the other end can be eliminated because being processed between part using the regulation of lever principle
Error and alignment error and the influence of position skew that causes, it is ensured that the regulation requirement of gear tooth side gap.Lever principle is：
Hub-eccentric hole 71 is fixed by a positioning boss 13 of support arm 1, an end of the small angle rotation near hub-eccentric hole 71
73, No. two 74 wide-angles of end using lever principle apart from hub-eccentric hole 71 farther out are moved, the need for meeting backlash regulation.Adjust
The gear that position is blocked is run into during section, its regulation is unrestricted, simple to operate, low cost, suitably batch production is used.
Embodiment：
Referring to Fig. 1 to Figure 12, a kind of Dual Over Head Camshaft diesel engine backlash adjusts instrument, and backlash regulation instrument includes support arm
1st, left support arm 2, right support arm 3, one end of the support arm 1 are provided with and its orthogonal positioning boss 13, support arm 1
The other end be connected with hinged disk 14, be provided with hinged disk 14 and its orthogonal No. two positioning boss 19, the left branch
Arm 2, one end of right support arm 3 are hinged with hinged disk 14, and the left support arm 2, the other end of right support arm 3 are provided with locating piece
23, the locating piece 23 is mutually vertical with left support arm 2, right support arm 3, and the bottom of locating piece 23 is provided with location hole 233；It is described
Support arm 1 includes the support column 17 of support column 12, two of support bar 11, and one end of a support column 12 is fixed with No. one
Position boss 13 is connected, and other end for support column 12 is vertical with one end of support bar 11 to be connected, the other end of support bar 11
It is connected with hinged disk 14, hinged disk 14 is vertical with one end of No. two support columns 17 to be connected, No. two other ends of support column 17 hang down
Direct-connected to be connected to location-plate 18, location-plate 18 is vertical with No. two positioning boss 19 to be connected；The hinged disk 14 is cylindrical structural, institute
The outer peripheral face for stating hinged disk 14 is connected with support bar 11, and hinged disk 14 is located remotely from the outer peripheral face of the hinged disk 14 with branch
The position that strut 11 is connected sets fluted 15, and hinge hole 16, the left support arm are provided with the end face of the hinged disk 14
2nd, right support arm 3 is hinged by hinge hole 16 after inserting groove 15 with hinged disk 14；The left support arm 2, right support arm 3 include
Branch armed lever 21 and support arm post 25, the locating piece 23 include the locating piece 231 and No. two locating pieces 232 that are connected, described
One end of branch armed lever 21 offers mounting hole 22, and articulated elements 26 is passed through by mounting hole 22 and hinge hole 16 after end insertion groove 15
It is hinged, the other end of the branch armed lever 21 is vertical with one end of support arm post 25 to be connected, the other end of support arm post 25 and No. one are fixed
The end face of position block 231 is vertically connected, and the location hole 233 is opened on an other end for locating piece 231；Described No. two
The bottom of locating piece 232 is provided with No. three positioning boss 234, and eccentric fixture 24 is provided with No. three positioning boss 234, described inclined
Heart fixture 24 includes base plate 241 and hyoplastron 242, and boss 244 and bearing 245, the boss 244 are provided with the base plate 241
On offer bolt hole 246, eccentric rod 243 is arranged with the bearing 245, one end of the hyoplastron 242 is provided with a gear
Plate 247, the other end of hyoplastron 242 is provided with No. two baffle plates 248, and No. two baffle plates 248 connect with the eccentric cam of eccentric rod 243
Touch, the position on the hyoplastron 242 near a baffle plate 247 is provided with detent 249, and No. three positioning boss 234 are worn
It is connected with bolt hole 246 after located groove 249.
A kind of Dual Over Head Camshaft diesel engine backlash adjusting method, the Dual Over Head Camshaft diesel engine includes a cam
7, No. two idler gears 8 of the idler gear of cam shaft gear 5, of shaft gear 4, two and with a cam shaft gear 4, two
The camshaft idle gear 6 that cam shaft gear 5 is meshed, No. two idler gears 8 are arranged on the side of camshaft idle gear 6 position
In away from 4, No. two positions of cam shaft gear 5 of a cam shaft gear, the camshaft idle gear 6 and No. two idler gears 8
Between an idler gear 7 is installed, 6, No. two idler gears 8 of an idler gear 7 and camshaft idle gear are homogeneously nibbled
Close, backlash regulation is carried out using backlash regulation instrument described above, the backlash adjusting method is comprised the following steps：First by one
Number cam shaft gear 4 and No. two cam shaft gears 5 are respectively mounted and are fixed on the camshaft of Dual Over Head Camshaft diesel engine, then
The idler gear 8 of idler gear 7, two of camshaft idle gear 6, is placed in predetermined installation site, and by installation bolt
No. two idler gears 8 are fixed, during then No. two positioning boss 19 to be inserted the wheel bore 61 of camshaft idle gear 6 respectively, one
Number positioning boss 13 is inserted in a hub-eccentric hole 71 for idler gear 7, now, camshaft idle gear 6 mounting plane from
By moving, then respectively by the location hole 233 of left support arm 2 be nested in installation a number camshaft for cam shaft gear 4 on, right support arm 3
Location hole 233 be nested in installation No. two camshafts of cam shaft gear 5 on, then turn clockwise eccentric rod 243, now,
The eccentric cam of eccentric rod 243 is moved towards the direction of location hole 233, to promote hyoplastron 242 to move folder towards the direction of location hole 233
Tight camshaft, now, the position of camshaft idle gear 6 is fixed, then tightens the installation bolt of camshaft idle gear 6, Ran Houshun
Hour hands rotate counterclockwise an idler gear 7 near No. two one end of positioning boss 19, when an idler gear 7 and camshaft
When the gap of 6, No. two idler gears 8 of idle gear is satisfied by installation requirement, an installation bolt for idler gear 7 is tightened.
Claims (7)
1. a kind of Dual Over Head Camshaft diesel engine backlash adjusts instrument, it is characterised in that backlash regulation instrument includes support arm
（1）, left support arm（2）, right support arm（3）, the support arm（1）One end be provided with and its orthogonal positioning boss
（13）, support arm（1）The other end be connected with hinged disk（14）, hinged disk（14）On be provided with it is fixed with its orthogonal No. two
Position boss（19）, the left support arm（2）, right support arm（3）One end and hinged disk（14）It is hinged, the left support arm（2）, it is right
Support arm（3）The other end be provided with locating piece（23）, the locating piece（23）With left support arm（2）, right support arm（3）Mutually hang down
Directly, locating piece（23）Bottom be provided with location hole（233）.
2. a kind of Dual Over Head Camshaft diesel engine backlash according to claim 1 adjusts instrument, it is characterised in that：The branch
Brace（1）Including support bar（11）, a support column（12）, No. two support columns（17）, a support column（12）One end
With a positioning boss（13）It is connected, a support column（12）The other end and support bar（11）One end vertically connect, prop up
Strut（11）The other end and hinged disk（14）It is connected, hinged disk（14）With No. two support columns（17）One end vertically connect,
No. two support columns（17）The other end be vertically connected with location-plate（18）, location-plate（18）With No. two positioning boss（19）Vertically connect
Connect.
3. a kind of Dual Over Head Camshaft diesel engine backlash according to claim 2 adjusts instrument, it is characterised in that：The hinge
Connect disk（14）It is cylindrical structural, the hinged disk（14）Outer peripheral face and support bar（11）It is connected, the hinged disk（14）
Outer peripheral face on be located remotely from hinged disk（14）With support bar（11）The position being connected sets fluted（15）, the hinged disk
（14）End face on be provided with hinge hole（16）, the left support arm（2）, right support arm（3）Insert groove（15）Afterwards by being hinged
Hole（16）With hinged disk（14）It is hinged.
4. a kind of Dual Over Head Camshaft diesel engine backlash according to claim 3 adjusts instrument, it is characterised in that：The left side
Support arm（2）, right support arm（3）Include branch armed lever（21）With support arm post（25）, the locating piece（23）Including No. one be connected
Locating piece（231）With No. two locating pieces（232）, the branch armed lever（21）One end offer mounting hole（22）, the end is inserted recessed
Groove（15）Pass through articulated elements afterwards（26）By mounting hole（22）With hinge hole（16）It is hinged, the branch armed lever（21）The other end with
Support arm post（25）One end vertically connect, support arm post（25）The other end and a locating piece（231）End face vertically connect,
The location hole（233）It is opened in a locating piece（231）Other end on.
5. a kind of Dual Over Head Camshaft diesel engine backlash according to claim 4 adjusts instrument, it is characterised in that：Described two
Number locating piece（232）Bottom be provided with No. three positioning boss（234）, No. three positioning boss（234）On be provided with eccentric fixture
（24）, the eccentric fixture（24）Including base plate（241）With hyoplastron（242）, the base plate（241）On be provided with boss（244）
With bearing（245）, the boss（244）On offer bolt hole（246）, the bearing（245）On be arranged with eccentric rod
（243）, the hyoplastron（242）One end be provided with a baffle plate（247）, hyoplastron（242）The other end be provided with No. two baffle plates
（248）, No. two baffle plates（248）With eccentric rod（243）Eccentric cam be in contact, the hyoplastron（242）It is upper to be close to a baffle plate
（247）Position be provided with detent（249）, No. three positioning boss（234）Pass detent（249）Afterwards with bolt
Hole（246）It is connected.
6. a kind of Dual Over Head Camshaft diesel engine backlash adjusting method, the Dual Over Head Camshaft diesel engine includes a camshaft
Gear（4）, No. two cam shaft gears（5）, an idler gear（7）, No. two idler gears（8）And with a cam shaft gear
（4）, No. two cam shaft gears（5）The camshaft idle gear being meshed（6）, No. two idler gears（8）Installed in cam
Axle idle gear（6）Side is located remotely from a cam shaft gear（4）, No. two cam shaft gears（5）Position, the camshaft is lazy
Gear（6）With No. two idler gears（8）Between an idler gear is installed（7）, an idler gear（7）With camshaft
Idle gear（6）, No. two idler gears（8）It is meshed, it is characterised in that：Using described in any one in claim 1-5
Backlash regulation instrument carries out backlash regulation, and the backlash adjusting method is comprised the following steps：
First by a cam shaft gear（4）With No. two cam shaft gears（5）It is respectively mounted and is fixed on Dual Over Head Camshaft diesel oil
On the camshaft of machine, then by camshaft idle gear（6）, an idler gear（7）, No. two idler gears（8）It is placed in pre- Dingan County
Holding position, and by installation bolt by No. two idler gears（8）It is fixed, then respectively by No. two positioning boss（19）Insertion cam
Axle idle gear（6）Wheel bore（61）In, a positioning boss（13）A number idler gear of insertion（7）Hub-eccentric hole（71）
In, now, camshaft idle gear（6）Moved freely in mounting plane, then respectively by left support arm（2）Location hole（233）It is nested
And it is fixed on a number cam shaft gear of installation（4）Camshaft on, right support arm（3）Location hole（233）Nesting is simultaneously fixed on peace
Fill No. two cam shaft gears（5）Camshaft on, now, camshaft idle gear（6）Position fixed, afterwards, tighten cam
Axle idle gear（6）Installation bolt, then rotate clockwise or counterclockwise an idler gear（7）Near No. two positioning boss
（19）One end, when an idler gear（7）With camshaft idle gear（6）, No. two idler gears（8）Gap be satisfied by install
It is required that when, tighten an idler gear（7）Installation bolt, now, the backlash adjusting method terminates.
7. a kind of Dual Over Head Camshaft diesel engine backlash adjusting method according to claim 6, it is characterised in that：
The locating piece（23）Bottom be additionally provided with No. three positioning boss（234）, No. three positioning boss（234）On be provided with partially
Heart fixture（24）, the eccentric fixture（24）Including base plate（241）With hyoplastron（242）, the base plate（241）On be provided with boss
（244）With bearing（245）, the boss（244）On offer bolt hole（246）, the bearing（245）On be arranged with eccentric rod
（243）, the hyoplastron（242）One end be provided with a baffle plate（247）, hyoplastron（242）The other end be provided with No. two baffle plates
（248）, No. two baffle plates（248）With eccentric rod（243）Eccentric cam be in contact, the hyoplastron（242）It is upper to be close to a baffle plate
（247）Position be provided with detent（249）, No. three positioning boss（234）Pass detent（249）Afterwards with bolt
Hole（246）It is connected；
It is described by left support arm（2）Location hole（233）Nesting is simultaneously fixed on a number cam shaft gear of installation（4）Camshaft on,
Right support arm（3）Location hole（233）Nesting is simultaneously fixed on No. two cam shaft gears of installation（5）Camshaft on refer to：First by a left side
Support arm（2）Location hole（233）It is nested in a number cam shaft gear of installation（4）Camshaft on, right support arm（3）Location hole
（233）It is nested in No. two cam shaft gears of installation（5）Camshaft on, then the eccentric rod that turns clockwise（243）, it is now, eccentric
Bar（243）Eccentric cam towards location hole（233）Direction motion, to promote hyoplastron（242）Towards location hole（233）Direction move
Dynamic gripping cams axle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109067.2A CN106870714B (en) | 2017-02-27 | 2017-02-27 | Double overhead camshaft diesel engine tooth clearance adjusting tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109067.2A CN106870714B (en) | 2017-02-27 | 2017-02-27 | Double overhead camshaft diesel engine tooth clearance adjusting tool and method |
Publications (2)
| Publication Number | Publication Date |
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| CN106870714A true CN106870714A (en) | 2017-06-20 |
| CN106870714B CN106870714B (en) | 2023-07-28 |
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| CN201710109067.2A Active CN106870714B (en) | 2017-02-27 | 2017-02-27 | Double overhead camshaft diesel engine tooth clearance adjusting tool and method |
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| CN108729977A (en) * | 2018-06-11 | 2018-11-02 | 东风商用车有限公司 | A kind of stifled dismantling device and its application method of engine inner engine oil |
| CN110925408A (en) * | 2019-12-18 | 2020-03-27 | 陈知行 | Clearance adjusting device of gear meshing transmission mechanism |
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|---|---|
| CN106870714B (en) | 2023-07-28 |
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