CN108331630A - A kind of rocker-arm engine valve clearance regulating device - Google Patents

Abstract

The invention discloses a kind of rocker-arm engine valve clearance regulating devices, including：Pedestal；Multigroup regulating part, multigroup regulating part are rotatably supported on the pedestal, and the first end of regulating part described in every group is both provided with interconnecting piece, and the interconnecting piece is for connecting valve clearance adjusting bolt；Actuator is all connected with the second end of regulating part described in every group, to drive multigroup regulating part to rotate synchronously.Compared with prior art, the present invention to the corresponding valve of multiple rocking arms while being adjusted by the way that multiple regulating parts rotated synchronously are arranged, it improves valve clearance and adjusts efficiency, it ensure that the mutual valve clearance consistency of each engine, each valve, human factor is reduced to greatest extent, the difference that environmental factor is brought, valve clearance is reduced simultaneously and adjusts difficulty, makes any employee for not having experience or lacking experience that can be easily accomplished this work.

Description

A kind of rocker-arm engine valve clearance regulating device

Technical field

The present invention relates to automobile debugging tool technical field, especially a kind of rocker-arm engine valve clearance adjusts dress It sets.

Background technology

16 valve four cylinder engine of rocker-arm single camshaft is needed in research and development trial-production or production process to gas Door cold conditions gap is adjusted, by rotary valve gap adjustment bolt 15 ', after reaching suitable valve clearance, such as air inlet Door gap：(0.30 ± 0.04) mm, emission valve clearance：(0.60 ± 0.04) mm, then by between the urgent valve of integration techno logy requirement 15 ' lock-nut of gap adjusting bolt.

Why between valve stem tail end and valve actuation part there are valve clearance, be for compensation valve it is heated after The need of expansion.But this gap must be appropriate.It is excessive, then it will appear valve opening and reduce (lift is inadequate), intake and exhaust resistance increases Add, aeration quantity declines, to influence dynamic property；Increase the impact and abrasion between valve train part simultaneously.It is too small, in valve It is not tight to will appear valve-closing under Warm status, causes cylinder leakage tester, operating pressure declines, the phenomenon that decline so as to cause power； Meanwhile valve is also easy to ablation.

The valve clearance adjustment of 16 valves has certain sequence, please refers to 16 gas in the prior art shown in FIG. 1 Door four cylinder engine axonometric drawing, after bent axle and camshaft are installed according to integration techno logy condition, turning crankshaft keeps No.1 cylinder 1 ' living Plug is located at exhaust top dead center positioned at compression top center, No. four 4 ' pistons of cylinder, adjusts No.1 1 ', No. two 2 ' inlet valve of cylinder of cylinder at this time, With No.1 cylinder 1 ' and No. three 3 ' emission valve clearances of cylinder (i.e. No.1 Rocker arm 5 ', No. two rocking arms 6 ', No. three rocking arms 7 ', No. six rocking arms 10 ' Corresponding valve)；The circle of bent axle one is rotated again, and No. four 4 ' pistons of cylinder are located at compression top center at this time, 1 ' piston of No.1 cylinder is located at row Gas top dead centre, (i.e. No. four are shaken for No. three cylinders 3 ' of adjustment, No. four 4 ' inlet valves of cylinder and No. two cylinders 2 ' and No. four 4 ' emission valve clearances of cylinder Arm 8 ', No. five rocking arms 9 ', No. seven rocking arms 11 ', the corresponding valve of No. eight rocking arms 12 ').

Adjusting method in the prior art is to use interior 13 ' valve gap adjustment adjusting bolt 15 ' of hexagonal, by operation warp It tests, goes to measure valve clearance using clearance gauge, with reference to adjustment state figure in valve clearance in the prior art shown in Fig. 2, such as one Number Rocker arm 5 ' corresponding inlet valve gap, design value are that (0.30 ± 0.04) mm needs to continue if measurement result is more than the value Valve clearance adjusting bolt 15 ' is screwed, if measurement result is less than the value, needs to unscrew valve clearance adjusting bolt 15 ', weight Multiple above-mentioned action, until valve clearance within the scope of design value, can use open spanner 14 ' to press the urgent gas of adjustment torque requirement at this time Door gap adjustment bolt lock-nut completes No.1 Rocker arm 5 ' corresponding valve clearance adjustment；No. two rocking arms 6 ', No. three are shaken The corresponding valve clearance of arm 7 ', No. six rocking arms 10 ' adjusts equally applicable；Certainly, if to adjust No. four rocking arms 8 ', No. five rocking arms 9 ', No. seven rocking arms 11 ', the corresponding valve clearance of No. eight rocking arms 12 ', it is necessary to which first turning crankshaft makes No. four 4 ' pistons of cylinder be located at pressure Contracting top dead centre, 1 ' piston of No.1 cylinder are located at exhaust top dead center.

Another method, it is also desirable to using interior hexagonal 13 ' and 14 ' combination operation of open spanner, for example adjust No.1 rocking arm When 5 ' corresponding valve clearance, the valve clearance adjusting bolt 15 ' is first unscrewed, the clearance gauge that thickness is 0.30mm is directly used to place In intake valve gap location, valve clearance adjusting bolt 15 ' is then screwed until can not rotate, it is urgent to reuse open spanner 14 ' Valve clearance adjusting bolt lock-nut, it is equally applicable to the adjusting of other valve clearances.

The above adjusting method has the following defects：

(1) efficiency is low, and either 1 ' piston of No.1 cylinder is located at compression top center, No. four 4 ' pistons of cylinder are located at exhaust top dead center Or 1 ' piston of No.1 cylinder is located at exhaust top dead center, No. four 4 ' pistons of cylinder are located at compression top center, is required to one and takes over one Valve clearance adjusting is carried out, for example first adjusts No.1 Rocker arm 5 ' corresponding valve clearance, then is No. two rocking arms 6 ', No. three rocking arms 7 ', No. six rocking arms 10 ' etc.；

(2) it is poor to adjust consistency for valve clearance, or leads to underproof valve clearance, for example every engine is each Between valve, between the valve of each engine, all can due to the difference of operating personnel, the difference of operating environment and generate difference It is different；

(3) experience ingredient is in the majority, and experienced operating personnel can complete valve clearance and adjust work well, not have experience New employee is difficult to or cannot complete this work, there is certain operation difficulty.

Invention content

It is in the prior art to solve the object of the present invention is to provide a kind of rocker-arm engine valve clearance regulating device Technical problem, it can improve valve clearance and adjust efficiency, replace the adjusting successively of the corresponding valve of each rocking arm, and can guarantee The mutual valve clearance consistency of each engine, each valve reduces human factor to greatest extent, environmental factor is brought Difference.

The present invention provides a kind of rocker-arm engine valve clearance regulating devices, including：

Pedestal；

Multigroup regulating part, multigroup regulating part are rotatably supported on the pedestal, and of regulating part described in every group One end is both provided with interconnecting piece, and the interconnecting piece is for connecting valve clearance adjusting bolt；

Actuator is all connected with the second end of regulating part described in every group, to drive multigroup regulating part to rotate synchronously.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, the regulating part includes turning Axis, the interconnecting piece are fixed on the bottom end of the shaft, and the regulating part is equipped with four groups, and respectively the first regulating part, second are adjusted Section part, third regulating part and the 4th regulating part, first regulating part, the second regulating part and third regulating part are equipped with driven Wheel, the driven wheel snare is in the shaft；

The actuator includes drive shaft and the driving wheel that is fixed in the drive shaft, and the driving wheel engages respectively There are the first idle pulley and the second idle pulley, first idle pulley driven wheel with first regulating part and second regulating part respectively It is meshed, second idle pulley is meshed with the driven wheel of the third regulating part, fixed in the shaft of the third regulating part Have first pulley, be fixed with the second belt wheel in the shaft of the 4th regulating part, the first pulley and second belt wheel it Between snare have toothed belt.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, the regulating part is also set up There are the upper platen and pressing disc being bonded to each other, the shaft to be fixed on the end face center of the upper platen, the interconnecting piece is fixed In the bottom center of the pressing disc；

Pressing plate is liftably provided on the pedestal, the shaft and the drive shaft penetrate through the pressing plate, institute Stating shaft and being taken in has the first spring, and the bottom end of first spring presses on the top surface of the driven wheel, first spring Top press on the bottom surface of the pressing plate, the drive shaft, which is taken in, second spring, and the bottom end of the second spring compresses In the top surface of the driving wheel, the top of the second spring presses on the bottom surface of the pressing plate.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, the pedestal includes tablet And two risers, two risers are fixed on the opposite sides of the tablet, are symmetrically arranged on two risers and vertically prolong The both sides of the sliding slot stretched, the pressing plate are equipped with and the matched sliding block of the sliding slot.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, the sliding slot is trapezoidal Slot, the sliding block are the trapezoidal slide block to match with the dovetail groove.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, the interconnecting piece includes work Make axis and column, the bottom center of the lower platen is fixed in one end of the working shaft, and the column is fixed on the work Make the other end of axis, the section of the column is regular hexagon.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, at the top of two risers It is bolted with adjustment bolt, the bottom of the adjustment bolt is abutted with the top surface of the sliding block.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, the adjustment bolt is ladder Shape bolt, the sliding slot top surface offer the trapezoidal internal thread hole to match with the trapezoidal bolt.

Rocker-arm engine valve clearance regulating device as described above, wherein preferably, fixed in the drive shaft There are pointer, the pressing plate to be equipped with the angle scale to match with the pointer.

Compared with prior art, the present invention is by being arranged multiple regulating parts rotated synchronously come corresponding to multiple rocking arms Valve is adjusted simultaneously, is improved valve clearance and is adjusted efficiency, ensure that the mutual valve clearance of each engine, each valve Consistency reduces human factor, the difference that environmental factor is brought to greatest extent, while reducing valve clearance and adjusting hardly possible Degree makes any employee for not having experience or lacking experience that can be easily accomplished this work.

Description of the drawings

Fig. 1 is 16 valve four cylinder engine axonometric drawing in the prior art；

Fig. 2 is adjustment state figure in valve clearance in the prior art；

Fig. 3 is the axonometric drawing of the present invention；

Fig. 4 is the front view of the present invention；

Fig. 5 is the vertical view under present invention removal pressing plate state；

Fig. 6 is the axonometric drawing of pedestal；

Fig. 7 is the axonometric drawing of pressing plate；

Fig. 8 is the axonometric drawing of the first regulating part；

Fig. 9 is the axonometric drawing of the second regulating part；

Figure 10 is the axonometric drawing of third regulating part；

Figure 11 is the axonometric drawing of the 4th regulating part；

Figure 12 is the axonometric drawing of interconnecting piece；

Figure 13 is working state structure schematic diagram of the present invention.

Reference sign：1- pedestals, 2- regulating parts, 3- interconnecting pieces, 4- actuators, 5- shafts, the first regulating parts of 6-, 7- Second regulating part, 8- third regulating parts, the 4th regulating parts of 9-, 10- driven wheels, 11- drive shafts, 12- driving wheels, 13- first are lazy Wheel, the second idle pulleys of 14-, 15- first pulleys, the second belt wheels of 16-, 17- toothed belts, the upper platens of 18-, 19- pressing discs, 20- pressing plates, The first springs of 21-, 22- second springs, 23- tablets, 24- risers, 25- sliding slots, 26- sliding blocks, 27- working shafts, 28- columns, 29- Adjustment bolt, 30- pointers, 31- angle scales, 32- No.1 cylinders, No. bis- cylinders of 33-, No. tri- cylinders of 34-, No. tetra- cylinders of 35-, 36- No.1s are shaken Arm, No. bis- rocking arms of 37-, No. tri- rocking arms of 38-, No. tetra- rocking arms of 39-, No. five rocking arms of 40-, No. six rocking arms of 41-, No. seven rocking arms of 42-, No. eight rocking arms of 43-.

1 '-No.1 cylinder, 2 '-No. two cylinders, 3 '-No. three cylinders, 4 '-No. four cylinders, 5 '-No.1 rocking arms, 6 '-No. two rocking arms, 7 '-three Number rocking arm, 8 '-No. four rocking arms, 9 '-No. five rocking arms, 10 '-No. six rocking arms, 11 '-No. seven rocking arms, 12 '-No. eight rocking arms, 13 '-is interior Hexagonal, 14 '-open spanners, 15 '-valve clearance adjusting bolts.

Specific implementation mode

The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining the present invention, and cannot be construed to Limitation of the present invention.

As shown in Figure 3 and Figure 4, the embodiment provides a kind of rocker-arm engine valve clearance regulating device, Including：

Pedestal 1, pedestal 1 are the carrier of all parts installation.

Multigroup regulating part 2, multigroup regulating part 2 are rotatably supported on the pedestal 1, regulating part 2 described in every group First end be both provided with interconnecting piece 3, the interconnecting piece 3 protrudes from the pedestal 1, and the interconnecting piece 3 is for connecting between valve Gap adjusting bolt, when adjustment device work, first by valve clearance adjusting bolt on the interconnecting piece 3 of each regulating part 2 and cylinder cap assembly Interior hexagonal correspond, you can rotate synchronously multiple valve clearance adjusting bolts, while adjusting many places valve clearance.

Actuator 4, if there are one, the second end of this actuator 4 and regulating part 2 described in every group is all connected with, multigroup to drive The regulating part 2 rotates synchronously.

Above-described embodiment to the corresponding valve of multiple rocking arms while being adjusted by the way that multiple regulating parts 2 rotated synchronously are arranged Section improves valve clearance and adjusts efficiency, ensure that the mutual valve clearance consistency of each engine, each valve, most Limits reduce human factor, the difference that environmental factor is brought, while reducing valve clearance and adjusting difficulty, make any not having Experience or the employee to lack experience can be easily accomplished this work.

As the preferred embodiment of the present embodiment, the specific fit system of the regulating part 2 and the actuator 4 is：

With reference to shown in Fig. 4 and Fig. 5, the regulating part 2 includes shaft 5, and the interconnecting piece 3 is fixed on the bottom of the shaft 5 End, the regulating part 2 are equipped with four groups, respectively the first regulating part 6, the second regulating part 7, third regulating part 8 and the 4th regulating part 9, it is corresponded with valve corresponding with four rocking arms, first regulating part 6, the second regulating part 7 and third regulating part 8 are all provided with There is driven wheel 10,10 snare of the driven wheel is in the shaft 5.

The actuator 4 includes drive shaft 11 and the driving wheel 12 being fixed in the drive shaft 11, the driving wheel 12 are engaged with the first idle pulley 13 and the second idle pulley 14 respectively, first idle pulley 13 respectively with first regulating part 6 and described The driven wheel 10 of second regulating part 7 is meshed, and second idle pulley 14 is meshed with the driven wheel 10 of the third regulating part 8, It is fixed with first pulley 15 in the shaft 5 of the third regulating part 8, the second band is fixed in the shaft 5 of the 4th regulating part 9 Wheel 16, snare has toothed belt 17 between the first pulley 15 and second belt wheel 16.

It is to be driven respectively by identical first idle pulley, 13 and second idle pulley 14 of two size specifications by driving wheel 12 when work Dynamic first regulating part 6, the second regulating part 7 and third regulating part 8, and third regulating part 8 is adjusted by the driving of toothed belt 17 the 4th Part 9 is saved, according to the kind of drive it is found that the rotation direction of 4 regulating parts 2 is identical as driving wheel 12, to be driven by driving wheel 12 Four regulating parts 2 counterclockwise or rotate clockwise simultaneously.

Further, with reference to Fig. 3, Fig. 8 to Figure 12, the regulating part 2 is additionally provided with the upper platen 18 being bonded to each other under Platen 19, the shaft 5 are fixed on the end face center of the upper platen 18, and the interconnecting piece 3 is fixed on the pressing disc 19 Bottom center, upper platen 18 and pressing disc 19 are two independent parts, and the driven relationship between them relies on 18 He of upper platen The frictional force that 19 end face of pressing disc generates is rotated and is rotated.

Pressing plate 20 is liftably provided on the pedestal 1, the shaft 5 and the drive shaft 11 penetrate through the pressure Plate 20, the shaft 5, which is taken in, the first spring 21, and the bottom end of first spring 21 presses on the top of the driven wheel 10 The top in face, first spring 21 presses on the bottom surface of the pressing plate 20, and the drive shaft 11, which is taken in, second spring 22, The bottom end of the second spring 22 presses on the top surface of the driving wheel 12, and the top of the second spring 22 presses on the pressure The bottom surface of plate 20.By the operation of pressing plate 20 to certain position, pressing plate 20 compresses downwards the first spring 21 and second spring 22, so that Upper platen 18 is tightly attached to pressing disc 19 and generates frictional force.

When needing to rotate clockwise, by the operation of pressing plate 20 to certain position, pressing plate 20 downward compressed spring Δ X1, first The coefficient of elasticity of spring 21 is denoted as K1, and the coefficient of elasticity of second spring 22 is significantly lower than the first spring 21, is denoted as K2, wherein K1 =5*K2, according to Hooke's law, upper platen 18 by certain lower pressure, is denoted as F1, F1=K1* Δs X1；It also assumes that The friction coefficient of 19 end face of platen 18 and pressing disc is μ, then goes up frictional force f1=μ F1=caused by platen 18 and pressing disc 19 μK1*ΔX1。

Also assume that the rotary resistance that interconnecting piece 3 is subject to is f0, as f1 ＞ f0, then interconnecting piece 3 follows driven wheel 10 same Step rotation, as f1 ＜ f0, then interconnecting piece 3 does not rotate, and driven wheel 10 is rotated further.

Similarly, when needing to rotate counterclockwise, pressing plate 20 is compressed into certain distance still further below, amount of spring compression is denoted as at this time Δ X2, Δ X2 ＞ Δ X1, then F2=K1* Δs X2；And frictional force f2=μ F2=μ K1* caused by upper platen 18 and pressing disc 19 ΔX2.Also assume that the rotary resistance that interconnecting piece is subject to is f0', as f2 ＞ f0', then interconnecting piece 3 follows driven wheel 10 to synchronize Rotation, as f2 ＜ f0', then interconnecting piece 3 does not rotate, and driven wheel 10 is rotated further.

In conclusion when using the present apparatus, by pushing pressing plate 20, and then the first spring 21 is compressed to compress upper platen 18 and pressing disc 19, it is similar to clutch function, is realized and is driven with frictional force；

When rotating clockwise, frictional force f1=μ F1=μ K1* Δs X1 at this time, it is desirable that when originally working shaft 27 rotates, F1 ＞ f0, when f0 reaches certain numerical value, f1≤f0, at this time interconnecting piece 3 stop operating, driven wheel 10 is rotated further；When all Interconnecting piece 3 all stop operating, at this time i.e. complete clockwise operation.

When rotating counterclockwise, frictional force f2=μ F2=μ K1* Δs X2 at this time, it is desirable that f2 has to be larger than f0', realizes connection Portion 3 and driven wheel 10 rotate synchronously.

Referring to Fig.1 3, specific implementation process is：

Turning crankshaft, makes that 32 piston of No.1 cylinder is located at compression top center, No. four 35 pistons of cylinder are located at exhaust top dead center, at this time Adjust 32, No. two 33 inlet valves of cylinder of No.1 cylinder and No.1 cylinder 32 and No. three 34 emission valve clearances of cylinder, i.e. No.1 rocking arm 36, two Valve clearance on each interconnecting piece 3 and cylinder cap assembly is adjusted spiral shell by rocking arm 37, No. three rocking arms 38, No. six 1 corresponding valves of Rocker arm 4 Bolt corresponds, i.e. the interconnecting piece 3 of the first regulating part 6 corresponds to the valve clearance adjusting bolt on No.1 rocking arm 36, and second is adjusted The interconnecting piece 3 of part 7 corresponds to the valve clearance adjusting bolt on No.1 rocking arm 36, and so on.

It first operating valve clearance adjusting bolt being screwed to clockwise and be completely attached to valve briquetting, i.e., valve clearance is 0, And reach a torque, it is set as 10N, i.e. f1=10N herein；Another mistake hour hands operation later rotates valve clearance towards direction is unclamped Adjusting bolt certain angle, according to the screw pitch of valve clearance adjusting bolt, you can the accurate valve clearance adjusting bolt that calculates exits Height, the height i.e. required valve clearance, for example screw pitch is 1mm, the valve clearance needed is 0.5mm, needs to revolve Turn valve clearance adjusting bolt 180 degree.

After the completion of preparation, starts valve clearance and adjust；Pressing plate 20 is first pushed, certain amount of spring compression Δ is generated X1, it is upper platen 18 and pressing disc 19 that upper frictional force between platen 18 and pressing disc 19, which is f1=μ K1* Δ X1, wherein μ, at this time Friction coefficient, K1 be the first spring 21 coefficient of elasticity；Standard tool rotary driving wheel 12 is used later, and then drives first Regulating part 6, the second regulating part 7, third regulating part 8 and the 4th regulating part 9.

When working shaft 27 rotates clockwise originally, resistance is less than 10N, and pressing disc 19 follows platen 18 to synchronize and turns at this time Dynamic, when wherein any one 27 resistance of working shaft is more than or equal to 10N, then the pressing disc 19 stops operating；Until under all After platen 19 stops operating, stop operating driving wheel 12 at this time, completes operation clockwise.

Pressing plate 20 is pushed again, and increase amount of spring compression is to Δ X2, upper friction between platen 18 and pressing disc 19 at this time Power is f2=μ K1* Δs X2；At this point, rotating counterclockwise driving wheel 12, it is desirable that f2 is more than the rotary resistance suffered by interconnecting piece 3, real It is now upper to be rotated synchronously between platen 18 and pressing disc 19.

When completing counterclockwise and after two clockwise operations, the rocking arm 38 of rocking arm 37, three of No.1 rocking arm 36, two and No. six It completes to adjust in 1 corresponding valve clearance of Rocker arm 4.

Similarly, No. four Rocker arm 4s 2 of Rocker arm 40, seven of rocking arm 39, five and No. eight 3 corresponding valve clearances of Rocker arm 4 adjust machine Structure can also refer to the present invention and carry out Analogy, and almost the same, only the position of working shaft 27 is changed, other principles are not Become.

Referring to figure 6 and figure 7, the preferred structure of the pedestal 1 is that the pedestal 1 includes tablet 23 and two risers 24, Two risers 24 are fixed on the opposite sides of the tablet 23, preferably integrally formed mode, 24 shape of tablet 23 and riser At concave structure, be symmetrically arranged with vertically extending sliding slot 25 on two risers 24, the both sides of the pressing plate 20 be equipped with 25 matched sliding block 26 of the sliding slot.

Include 7 cylindrical protrusions on tablet 23, wherein 3 heights of projection are 10mm, and cylinder upper surface is machined with directly The cylindrical hole of diameter 2mm depth 2mm is used to support and positions driving wheel 12, the first idle pulley 13 and the second idle pulley 14；Other 4 Height of projection is 3mm, is machined with the through hole of a diameter of 6mm, is used to support and positions four interconnecting pieces 3, be in addition designed with 4 The purpose of small protrusion is primarily to differentiation machined surface, reduces the processing capacity of the high machined surface of plane precision.20 main body knot of pressing plate Structure, which is a cuboid upper surface, 5 cylindrical protrusions, height of projection 1mm, primarily to distinguishing machined surface, reduces plane essence The processing capacity of high machined surface is spent, which, which runs through in center, cylindrical hole.

Further, the sliding slot 25 is dovetail groove, and the sliding block 26 is the trapezoidal slide block to match with the dovetail groove, To improve the stability of guiding movement.

Further, referring to Fig.1 2, the interconnecting piece 3 includes working shaft 27 and column 28, and the one of the working shaft 27 The bottom center of the lower platen 20 is fixed at end, and the column 28 is fixed on the other end of the working shaft 27, the column 28 section is regular hexagon.

For convenience of pushing pressing plate 20, and 20 depressed position of pressing plate can be controlled, two 24 tops of the risers are bolted with tune Whole bolt 29, the bottom of the adjustment bolt 29 are abutted with the top surface of the sliding block 26.

The adjustment bolt 29 is trapezoidal bolt, and 25 top surface of the sliding slot offers the ladder to match with the trapezoidal bolt Shape internal thread hole, by screwing two trapezoidal bolts simultaneously, rotation amplitude is identical, to ensure that 20 level of pressing plate moves downward, together Sample, while two trapezoidal threads are unclamped, pressing plate 20 can be moved upwards by spring force.

Pointer 30 is fixed in the drive shaft 11, pointer 30 coordinates with 11 transition of drive shaft, it is desirable that not by external force It can be rotated synchronously with driving wheel 12 under effect, the axial position of pointer 30 and circumferential position can also be adjusted under external force It sets, the pressing plate 20 is equipped with the angle scale 31 to match with the pointer 30, can coordinate the use of pointer 30, knows actively The angle that wheel 12 is rotated.

The structure, feature and effect of the present invention, the above institute are described in detail based on the embodiments shown in the drawings Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing Change made by thinking, or is revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings, It should all be within the scope of the present invention.

Claims (9)

1. a kind of rocker-arm engine valve clearance regulating device, which is characterized in that including：

Pedestal (1)；

Multigroup regulating part (2), multigroup regulating part (2) are rotatably supported on the pedestal (1), regulating part described in every group (2) first end is both provided with interconnecting piece (3), and the interconnecting piece (3) is for connecting valve clearance adjusting bolt；

Actuator (4) is all connected with the second end of regulating part (2) described in every group, to drive multigroup regulating part (2) is synchronous to turn It is dynamic.

2. rocker-arm engine valve clearance regulating device according to claim 1, it is characterised in that：

The regulating part (2) includes shaft (5), and the interconnecting piece (3) is fixed on the bottom end of the shaft (5), the regulating part (2) be equipped with four groups, respectively the first regulating part (6), the second regulating part (7), third regulating part (8) and the 4th regulating part (9), institute It states the first regulating part (6), the second regulating part (7) and third regulating part (8) and is equipped with driven wheel (10), driven wheel (10) circle It is placed in the shaft (5)；

The actuator (4) includes drive shaft (11) and the driving wheel (12) being fixed in the drive shaft (11), the master Driving wheel (12) is engaged with the first idle pulley (13) and the second idle pulley (14) respectively, and first idle pulley (13) is adjusted with described first respectively The driven wheel (10) of section part (6) and second regulating part (7) is meshed, second idle pulley (14) and the third regulating part (8) driven wheel (10) is meshed, and is fixed with first pulley (15) in the shaft (5) of the third regulating part (8), and the described 4th The second belt wheel (16) is fixed in the shaft (5) of regulating part (9), between the first pulley (15) and second belt wheel (16) Snare has toothed belt (17).

3. rocker-arm engine valve clearance regulating device according to claim 2, it is characterised in that：

The regulating part (2) is additionally provided with the upper platen (18) being bonded to each other and pressing disc (19), and the shaft (5) is fixed on institute The end face center of platen (18) is stated, the interconnecting piece (3) is fixed on the bottom center of the pressing disc (19)；

Pressing plate (20) is liftably provided on the pedestal (1), the shaft (5) and the drive shaft (11) penetrate through institute State pressing plate (20), the shaft (5), which is taken in, the first spring (21), the bottom end of first spring (21) press on it is described from The top of the top surface of driving wheel (10), first spring (21) presses on the bottom surface of the pressing plate (20), the drive shaft (11) Being taken in has second spring (22), and the bottom end of the second spring (22) presses on the top surface of the driving wheel (12), and described The top of two springs (22) presses on the bottom surface of the pressing plate (20).

4. rocker-arm engine valve clearance regulating device according to claim 3, it is characterised in that：The pedestal (1) Including tablet (23) and two risers (24), two risers (24) are fixed on the opposite sides of the tablet (23), two institutes It states and is symmetrically arranged with vertically extending sliding slot (25) on riser (24), the both sides of the pressing plate (20) are equipped with and the sliding slot (25) Matched sliding block (26).

5. rocker-arm engine valve clearance regulating device according to claim 4, it is characterised in that：The sliding slot (25) For dovetail groove, the sliding block (26) is the trapezoidal slide block to match with the dovetail groove.

6. rocker-arm engine valve clearance regulating device according to claim 4, it is characterised in that：The interconnecting piece (3) include working shaft (27) and column (28), the bottom surface of the lower platen (20) is fixed in one end of the working shaft (27) Center, the column (28) are fixed on the other end of the working shaft (27), and the section of the column (28) is regular hexagon.

7. rocker-arm engine valve clearance regulating device according to claim 4, it is characterised in that：Two risers (24) top is bolted with adjustment bolt (29), and the bottom of the adjustment bolt (29) is abutted with the top surface of the sliding block (26).

8. rocker-arm engine valve clearance regulating device according to claim 7, it is characterised in that：The adjustment bolt (29) it is trapezoidal bolt, sliding slot (25) top surface offers the trapezoidal internal thread hole to match with the trapezoidal bolt.

9. rocker-arm engine valve clearance regulating device according to claim 4, it is characterised in that：The drive shaft (11) pointer (30) is fixed on, the pressing plate (20) is equipped with the angle scale (31) to match with the pointer (30).