CN107471153A - Valve lash adjustment device - Google Patents
Valve lash adjustment device Download PDFInfo
- Publication number
- CN107471153A CN107471153A CN201710935171.7A CN201710935171A CN107471153A CN 107471153 A CN107471153 A CN 107471153A CN 201710935171 A CN201710935171 A CN 201710935171A CN 107471153 A CN107471153 A CN 107471153A
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- CN
- China
- Prior art keywords
- sleeve
- bullet
- hole
- tail end
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a kind of valve lash adjustment device, including：Sleeve, the head of the sleeve have inner hexagonal hole, and the inside of the tail end of sleeve has elongated hole, and the centre position of sleeve inner is provided with taper hole, and the linking of taper hole front end has pilot hole；Bullet, it is set in sleeve, and the interlude of bullet is in round bar, round bar matches with pilot hole, and the tail end of round bar has bullet, and taper surface and the taper hole of bullet coordinate, the tapered head of round bar is in yi word pattern projection, and yi word pattern projection can protrude the end face of inner hexagonal hole；Spring, it is contained in elongated hole, and the tail end of elongated hole is provided with spring-leaf retainer, and spring is used for driving forwards bullet and then bullet being adjacent in taper hole；And end cap, it is arranged on the tail end of sleeve, and the roof outside of end cap is above outwardly connecting rod, and connecting rod is used for being connected with the locker of electric wrench.The device improves the operating efficiency of adjustment valve clearance.
Description
Technical field
The present invention relates to valve to assemble field, more particularly to a kind of valve lash adjustment device.
Background technology
In diesel engine assembling process, the technological requirement of valve clearance be generally (0.35~0.45) ± 0.05mm it
Between, need to detect adjustment valve clearance by process control method during engine assembly, valve clearance control is existed
In certain margin of tolerance.The valve clearance of engine is mainly manually adjusted using instruments such as bullet+double offset ring spanners.
Specifically, manual rotation's bent axle unclamps valve adjustments spiral shell with tightening tools such as double offset ring spanners first to after piston top dead center position
The fixing nut of nail, adjusting screw is reversely unclamped with bullet, adjustment required for the clearance gauge for choosing thickness is filled in
At valve clearance between rocker head and valve stem, adjusting screw, proficiency pull thickness are rotated using instruments such as bullets on the other hand
Rule, untill thickness gage is somewhat by resistance, are remained stationary as with bullet adjustment screw, work are tightened with double offset ring spanner etc.
Tool tightens fixing nut, locks regulating bolt and the relative position of rocking arm, clearance gauge is taken away, and turning crankshaft is further continued for carrying out next
The adjustment of individual valve clearance.It is not quite similar because engine valve puts in order, by the igniting (oil spout) of engine sequentially by cylinder
Valve clearance is adjusted, the valve clearance adjustment until being fully completed whole engine.
But in available engine assembling, valve clearance adjusting method is mainly using instrument people such as bullet+double offset ring spanners
Work manually adjusts, it is necessary to which artificial instrument used at the same time has the clearance gauge of measurement gap, the bullet for rotating regulating bolt, locking to adjust
The different instrument cooperation completion of three kinds of the spanner of nut is saved, operational motion is complicated, and operating time length, efficiency is low, is engine
One of master operation of productive temp is influenceed in assembling process.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or implying the information structure in any form.
The content of the invention
It is an object of the invention to provide a kind of valve lash adjustment device, improves the operating efficiency for adjusting valve clearance.
To achieve the above object, the invention provides a kind of valve lash adjustment device, including：Sleeve, the head of the sleeve
Portion has inner hexagonal hole, and the inside of the tail end of sleeve has elongated hole, and the centre position of sleeve inner is provided with taper hole, taper hole front end rank
It is connected to pilot hole；Bullet, it is set in sleeve, and the interlude of bullet is in round bar, and round bar matches with pilot hole, round bar
Tail end has a bullet, and taper surface and the taper hole of bullet coordinate, and it is in yi word pattern projection that the head of round bar is tapered, yi word pattern projection
The end face of inner hexagonal hole can be protruded；Spring, it is contained in elongated hole, and the tail end of elongated hole is provided with spring-leaf retainer, and spring is used for
Bullet is driven forwards and then bullet is adjacent in taper hole；And end cap, it is arranged on the tail end of sleeve, the top of end cap
Above outwardly on the outside of wall to have connecting rod, connecting rod is used for being connected with the locker of electric wrench.
Preferably, the tail end of bullet is extended with cylindrical section, and cylindrical section coordinates with long interporal lacuna.
Preferably, spring-leaf retainer is block, and the outer wall of block coordinates with the inner thread of elongated hole tail end.
Preferably, it is provided with spring shim in block.
Preferably, the side wall of elongated hole tail end is provided with clamping screw.
Preferably, the outer wall thread of the tail end of the madial wall of end cap and sleeve coordinates.
Preferably, there is transitional pore between inner hexagonal hole and pilot hole.
Compared with prior art, the present invention has the advantages that：By regulating bolt, double offset ring spanner are rotated with bottle opener
Hand locking two operational motions of adjusting nut are integrated to be completed by a sleeve mechanism, operational motion is reduced, by having set one in advance
Fixed spring force so that the conical surface friction torque of sleeve and bottle opener is less than the compression stress of valve spring, and bottle opener revolves during rotational sleeve
After turning regulating bolt so that the other end of air valve bridge overlays clearance gauge, the conical surface of sleeve eliminates the frictional force with the bottle opener conical surface, set
Cylinder idle running does not drive bottle opener to be rotated further and the spring of compression valve, is rotated using electronic (or pneumatic) spanner, drive sleeve is adjusted
Whole valve clearance, improve the operating efficiency of adjustment valve clearance.
Brief description of the drawings
Fig. 1 is the structural representation according to the valve lash adjustment device of the present invention；
Fig. 2 is the structural representation according to the valve lash adjustment device middle sleeve of the present invention；
Fig. 3 is the right view according to the valve lash adjustment device middle sleeve of the present invention；
Fig. 4 is the structural representation of bullet in the valve lash adjustment device according to the present invention；
Fig. 5 is the right view of bullet in the valve lash adjustment device according to the present invention；
Fig. 6 is the structural representation of end cap in the valve lash adjustment device according to the present invention；
Fig. 7 is the right view of end cap in the valve lash adjustment device according to the present invention；
Fig. 8 is the structural representation of spring-leaf retainer in the valve lash adjustment device according to the present invention；
Fig. 9 is the right view of spring-leaf retainer in the valve lash adjustment device according to the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figures 1 to 9, according to a kind of valve lash adjustment device of the specific embodiment of the invention, including sleeve
1st, bullet 2, spring 3, spring-leaf retainer 4 and end cap 5, wherein bullet 2, spring 3, spring-leaf retainer 4 are located in sleeve 1 successively
Inside, the inside of the tail end of sleeve 1 has an elongated hole 12, and the centre position inside sleeve 1 is provided with taper hole 11, the front end of taper hole 11 rank
Pilot hole 10 is connected to, bullet 2 is set in sleeve 1, and the interlude of bullet 2 is in round bar 22, round bar 22 and pilot hole 10
Match somebody with somebody, the tail end of round bar 22 has cone 24, and taper surface and the taper hole 11 of cone 24 coordinate, and the tapered head of round bar 22 is in yi word pattern
Projection 21, yi word pattern projection 21 can protrude the end face of inner hexagonal hole 8.Spring 3 is contained in elongated hole 12, and the tail end of elongated hole 12 is set
Spring-leaf retainer 4 is equipped with, spring 3 is used for driving forwards bullet 2 and then bullet 2 being adjacent in taper hole 11.End cap 5 is set
Above outwardly on the outside of the tail end of sleeve 1, the roof of end cap 5 to have connecting rod 19, connecting rod 19 is used for the lock with electric wrench
Folder connection.
In such scheme, inner hexagonal hole 8 is used for being connected with the fixing nut of valve, pilot hole 10 and bullet 2
The cylindrical cooperation of round bar 22, the radial deflection of bullet 2, taper hole 11 and the cone match of cone 24 are limited, bullet 2 is in sleeve
1 interior energy flexibly moves in the axial direction, is provided with spring 3 in elongated hole 12, one end of spring 3 is connected with cone 24, the other end and bullet
Spring abutment circle 4 is connected, and spring-leaf retainer 4 be bonded connected with end cap 5, and end cap 5 is provided with connecting rod 19, connecting rod 19 for it is electronic
(pneumatic) spanner connects.
In the adjusting apparatus of the specifically used valve clearance, after manual rotation's bent axle to piston top dead center position, first
At valve clearance required for the clearance gauge for choosing thickness is filled between the rocker head and valve stem of adjustment, then pick up electricity
Wrench and sleeve 1, the valve adjustments bolt of the axis of bullet 2 and required adjustment on the same axis, bullet 2
Yi word pattern projection 21 is inserted in " one " word fluting of valve adjustment bolt, then firmly pushes electric wrench, the interior hexagonal of sleeve 1
The fixing nut of valve is inserted in hole 8, and bullet 2 counteracts the axial force of spring 3, the conical surface and the conical surface under the support of regulating bolt
Separation, presses the reversal switch of electric wrench, and electric wrench is rotated, rotated by connecting rod 19 with moving sleeve 1, sleeve 1 is reverse
Fixing nut is unclamped, then up carries electric wrench, the inner hexagonal hole 8 of sleeve 1 separates with fixing nut, a word of bullet 2
Type projection 21 is maintained in " one " word fluting of adjustment bolt, presses the positive switch of electric wrench, and electric wrench rotates forward,
Rotated forward by connecting rod 19 with moving sleeve 1, the conical surface in sleeve 1 and the conical surface of cone 24 drive bullet by frictional force
2 rotate, and bullet 2 drives regulating bolt to rotate forward, and the lower end of regulating bolt is bonded with the upper end of valve stem, regulating bolt
The regulating bolt side for rotating forward the relative position changed with air valve bridge screw, lifting air valve bridge, under leverage, gas
The other end of the raft of pontoons pushes the clearance gauge until being adjacent between rocker head and valve stem, eliminates between valve rocker head and valve stem
Gap, continuation down pushes electric wrench, and band moving sleeve 1 moves down, and the inner hexagonal hole 8 of sleeve 1 is inserted in fixing nut, sleeve 1
Fixing nut rotation is driven, locks regulating bolt and the relative position of air valve bridge, unclamps the switch of electric wrench, sleeve 1 exits
Fixing nut, the adjust automatically of a valve clearance is completed, turning crankshaft is further continued for carrying out the tune of next valve clearance again
It is whole, it is not quite similar because engine valve puts in order, sequentially adjusts valve clearance by cylinder by the igniting (oil spout) of engine, directly
To the valve clearance adjustment for being fully completed whole engine.In this programme, by having set certain spring force in advance so that sleeve
1 is less than the compression stress of valve spring with the conical surface friction torque of bullet 2, and during rotational sleeve 1, bullet 2 rotates regulating bolt
So that after the other end of air valve bridge overlays clearance gauge, the conical surface of sleeve 1 eliminates the frictional force with the conical surface of bullet 2, and sleeve 1 dallies
It is rotated further without mantle body.
As a kind of preferred embodiment, the tail end of bullet 2 is extended with cylindrical section 25, and cylindrical section 25 is matched somebody with somebody with the gap of elongated hole 12
Close.
As a kind of preferred embodiment, spring-leaf retainer 4 is block, and the inner thread of the outer wall and the tail end of elongated hole 12 of block is matched somebody with somebody
Close.In this programme, the outer wall of block has external screw thread, and the inwall of the tail end of elongated hole 12 has screw 14, the external screw thread and spiral shell of block
Hole 14 is threadedly coupled.
As a kind of preferred embodiment, spring shim 7 is provided with block.
As a kind of preferred embodiment, the side wall of the tail end of elongated hole 12 is provided with clamping screw 6, accordingly, the tail end of elongated hole 12
Side wall is provided with locking screw holes 15.
As a kind of preferred embodiment, the outer wall thread of the madial wall of end cap 5 and the tail end of sleeve 1 coordinates.In this programme,
The madial wall of end cap 5 is provided with internal thread 17, and the outer round thread 16 of internal thread 17 and sleeve 1 is connected, and the lateral wall of end cap 5 is set
There is step 18.
As a kind of preferred embodiment, there is transitional pore 9 between inner hexagonal hole 8 and pilot hole 10.In addition, sleeve 1 is outer
Wall centre position is provided with bayonet socket 13, and yi word pattern projection 21 is connected with the head of round bar 22 by the transition of the conical surface 21, the tail end of round bar 22
There is step 23 between cone 24, the end face of cone 24 is provided with spring base hole 26.
To sum up, the valve lash adjustment device of the present embodiment, regulating bolt, double offset ring spanner locking are rotated with bottle opener by
Two operational motions of adjusting nut are integrated to be completed by a sleeve mechanism, operational motion is reduced, by having set certain bullet in advance
Spring force so that the conical surface friction torque of sleeve and bottle opener is less than the compression stress of valve spring, bottle opener rotation regulation during rotational sleeve
After bolt causes the other end of air valve bridge to overlay clearance gauge, the conical surface of sleeve eliminates the frictional force with the bottle opener conical surface, sleeve idle running
Bottle opener is not driven to be rotated further and the spring of compression valve.Using electronic (or pneumatic) spanner rotation, drive sleeve adjustment valve
Gap, improve the operating efficiency of adjustment valve clearance.
The description of the foregoing specific illustrative embodiment to the present invention is to illustrate and the purpose of illustration.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explain that the certain principles of the present invention and its reality should
With so that those skilled in the art can realize and utilize the present invention a variety of exemplaries and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (7)
- A kind of 1. valve lash adjustment device, it is characterised in that including：Sleeve, the head of the sleeve have inner hexagonal hole, and the inside of the tail end of the sleeve has elongated hole, the sleeve inner Centre position is provided with taper hole, and the taper hole front end linking has pilot hole；Bullet, it is set in the sleeve, and the interlude of the bullet is in round bar, the round bar and the pilot hole Match somebody with somebody, the tail end of the round bar has bullet, and the taper surface of the bullet coordinates with the taper hole, and the head of the round bar is gradually Contracting is in yi word pattern projection, and the yi word pattern projection can protrude the end face of the inner hexagonal hole；Spring, it is contained in the elongated hole, and the tail end of the elongated hole is provided with spring-leaf retainer, and the spring is used for the cone Body drives forwards and then the bullet is adjacent in the taper hole；AndEnd cap, it is arranged on the tail end of the sleeve, and the roof outside of the end cap is above outwardly connecting rod, the connection Bar is used for being connected with the locker of electric wrench.
- 2. valve lash adjustment device according to claim 1, it is characterised in that the tail end of the bullet is extended with circle Shell of column, the cylindrical section coordinate with the long interporal lacuna.
- 3. valve lash adjustment device according to claim 1, it is characterised in that the spring-leaf retainer is block, described The inner thread of the outer wall of block and the elongated hole tail end coordinates.
- 4. valve lash adjustment device according to claim 3, it is characterised in that be provided with spring shim in the block.
- 5. valve lash adjustment device according to claim 4, it is characterised in that the side wall of the elongated hole tail end is provided with lock Tight bolt.
- 6. valve lash adjustment device according to claim 1, it is characterised in that the madial wall of the end cap and the set The outer wall thread of the tail end of cylinder coordinates.
- 7. valve lash adjustment device according to claim 1, it is characterised in that the inner hexagonal hole and the pilot hole Between there is transitional pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935171.7A CN107471153B (en) | 2017-10-10 | 2017-10-10 | Valve clearance adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935171.7A CN107471153B (en) | 2017-10-10 | 2017-10-10 | Valve clearance adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107471153A true CN107471153A (en) | 2017-12-15 |
| CN107471153B CN107471153B (en) | 2023-02-28 |
Family
ID=60605209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710935171.7A Active CN107471153B (en) | 2017-10-10 | 2017-10-10 | Valve clearance adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107471153B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247085A (en) * | 2018-03-19 | 2018-07-06 | 刘广俭 | A kind of hydraulic-driven without lathe bed wheel tread turning machining device |
| CN112605931A (en) * | 2020-11-13 | 2021-04-06 | 中国航发沈阳黎明航空发动机有限责任公司 | Combined adjusting tool |
| CN113894719A (en) * | 2021-09-29 | 2022-01-07 | 广西玉柴机器股份有限公司 | Clamping device for adjusting clearance of braking exhaust valve in engine cylinder |
| CN114833755A (en) * | 2022-06-02 | 2022-08-02 | 重庆磐谷动力技术有限公司 | Novel engine valve clearance adjusting tool and method |
| CN114952684A (en) * | 2022-05-11 | 2022-08-30 | 东风柳州汽车有限公司 | Sleeve for flat joint nut |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200110U (en) * | 1987-01-05 | 1987-10-21 | 马才英 | Valve gap adjuster for internal combustion engine |
| US5915740A (en) * | 1996-01-19 | 1999-06-29 | Weitner; Werner | Method and device for placing or removing valve-spring retainer locks |
| JP2002115512A (en) * | 2000-10-03 | 2002-04-19 | Yutani:Kk | Valve clearance setting device |
| CN2788971Y (en) * | 2005-04-08 | 2006-06-21 | 东风朝阳柴油机有限责任公司 | Special tool for regulating air door |
| CN102152277A (en) * | 2011-01-28 | 2011-08-17 | 东风朝阳柴油机有限责任公司 | Special device for adjusting valve clearance of engine |
| CN202123476U (en) * | 2011-06-20 | 2012-01-25 | 镇江中船设备有限公司 | Air valve-clearance adjusting device |
| CN202428390U (en) * | 2011-12-29 | 2012-09-12 | 锐展(铜陵)科技有限公司 | Multi-machine-type engine valve key tool |
| CN202780951U (en) * | 2012-08-09 | 2013-03-13 | 中国重汽集团杭州发动机有限公司 | Valve clearance adjustment wrench |
| CN203293117U (en) * | 2013-06-27 | 2013-11-20 | 宁波市鄞州德来特技术有限公司 | Tool sleeve |
| CN105922183A (en) * | 2016-06-14 | 2016-09-07 | 广西玉柴机器股份有限公司 | Valve clearance adjusting device |
| CN207223885U (en) * | 2017-10-10 | 2018-04-13 | 广西玉柴机器股份有限公司 | Valve lash adjustment device |
-
2017
- 2017-10-10 CN CN201710935171.7A patent/CN107471153B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200110U (en) * | 1987-01-05 | 1987-10-21 | 马才英 | Valve gap adjuster for internal combustion engine |
| US5915740A (en) * | 1996-01-19 | 1999-06-29 | Weitner; Werner | Method and device for placing or removing valve-spring retainer locks |
| JP2002115512A (en) * | 2000-10-03 | 2002-04-19 | Yutani:Kk | Valve clearance setting device |
| CN2788971Y (en) * | 2005-04-08 | 2006-06-21 | 东风朝阳柴油机有限责任公司 | Special tool for regulating air door |
| CN102152277A (en) * | 2011-01-28 | 2011-08-17 | 东风朝阳柴油机有限责任公司 | Special device for adjusting valve clearance of engine |
| CN202123476U (en) * | 2011-06-20 | 2012-01-25 | 镇江中船设备有限公司 | Air valve-clearance adjusting device |
| CN202428390U (en) * | 2011-12-29 | 2012-09-12 | 锐展(铜陵)科技有限公司 | Multi-machine-type engine valve key tool |
| CN202780951U (en) * | 2012-08-09 | 2013-03-13 | 中国重汽集团杭州发动机有限公司 | Valve clearance adjustment wrench |
| CN203293117U (en) * | 2013-06-27 | 2013-11-20 | 宁波市鄞州德来特技术有限公司 | Tool sleeve |
| CN105922183A (en) * | 2016-06-14 | 2016-09-07 | 广西玉柴机器股份有限公司 | Valve clearance adjusting device |
| CN207223885U (en) * | 2017-10-10 | 2018-04-13 | 广西玉柴机器股份有限公司 | Valve lash adjustment device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247085A (en) * | 2018-03-19 | 2018-07-06 | 刘广俭 | A kind of hydraulic-driven without lathe bed wheel tread turning machining device |
| CN112605931A (en) * | 2020-11-13 | 2021-04-06 | 中国航发沈阳黎明航空发动机有限责任公司 | Combined adjusting tool |
| CN113894719A (en) * | 2021-09-29 | 2022-01-07 | 广西玉柴机器股份有限公司 | Clamping device for adjusting clearance of braking exhaust valve in engine cylinder |
| CN114952684A (en) * | 2022-05-11 | 2022-08-30 | 东风柳州汽车有限公司 | Sleeve for flat joint nut |
| CN114833755A (en) * | 2022-06-02 | 2022-08-02 | 重庆磐谷动力技术有限公司 | Novel engine valve clearance adjusting tool and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107471153B (en) | 2023-02-28 |
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