CN101408270A - Mounting components of engine - Google Patents

Abstract

The invention provides an installation device used for an internal combustion engine, comprising a first internal combustion engine installation part, a second internal combustion engine installation part and a third internal combustion engine installation part. The first internal combustion engine installation part and the second internal combustion engine installation part support the whole practical weight of the internal combustion engine; the third internal combustion engine installation part is connected with the internal combustion engine and resists the pivotal rotation of the internal combustion engine on the first internal combustion engine installation part and the second internal combustion engine installation part.

Description

Engine mount

Technical field

The present invention relates to a kind of weight of motor and motor installation system of isolating vibrations of supporting.

Summary of the invention

The invention provides a kind of erecting device of internal-combustion engine, this erecting device comprises: first, second engine mount, support the total weight of internal-combustion engine in fact, isolate the in fact all vibrations on the internal-combustion engine vertical direction, first, second engine mount definition internal-combustion engine can be around the pivotal line of its pivot; And the 3rd internal-combustion engine assembling set that links to each other with internal-combustion engine, this trimotor assembling set opposing internal-combustion engine pivots and does not support the weight of motor in fact around pivotal line.

The present invention provides a kind of method that connects motor to entablature simultaneously, this motor comprises yawing axis, sidewinders axle and elevation axis, this yawing axis, sidewinder the axle and elevation axis be initial point with the motor center of gravity, principal plane is through yawing axis and sidewinder axle, and this method comprises: the total weight in fact that (a) utilizes first, second engine mount support motor of definition pivotal line; (b) utilize first, second engine mount and do not utilize the trimotor assembling set to isolate in fact all vibrations of vertical direction; (c) utilize the trimotor assembling set and do not utilize first, second engine mount opposing motor to tumble around pivotal line.

By reading following detailed description and accompanying drawing, others of the present invention will become more apparent.

Description of drawings

Fig. 1 is fuel trimmer first an embodiment's of the present invention schematic representation.

Fig. 1 is the perspective view of embodiment of the invention excavator.

Fig. 2 is the side view of excavator.

Fig. 3 is the perspective view of the motor of excavator.

Fig. 4 a is the sectional view of motor 4a-4a along the line among Fig. 3.

Fig. 4 b is one of them a zoomed-in view of engine mount.

Fig. 5 is the end view of motor.

Embodiment

Before describing embodiments of the invention in detail, of the present invention being not limited only among the application hereinafter or detailed structure described in the accompanying drawing or arrangement of elements.The present invention can be the embodiment that alternate manner is realized.Should be appreciated that hereinafter employed wording and term only are used as the description purposes, should not do limited explanation.Similar wording such as hereinafter employed " comprising ", " comprising ", " having " mean and comprise listed thereafter item, equivalent and other additional things.Except that special declaration, similar wording such as " installation ", " connection ", " support ", " cooperation " should be done extensive interpretation, comprise directly and indirect installation, connection, support, cooperation.In addition, " connection " reach " cooperation " be not limited to physics or machinery connection or cooperation.Employed when alternative line, point or part herein " ... on " reach " ... under " only be illustrated in higher or lower height, and need in same public vertical surface, not have these lines, point or part." directly exist ... on " reach " directly exist ... under " be used to show that these lines, point or part are in same vertical surface.

The excavator 10 that Fig. 1 and Fig. 2 describe comprises operator cabin 15, underframe 20, operation group 25 and backfiller blade 30.Although among the figure of the present invention with excavator as embodiment, it still can be applicable to other vehicle that comprises the internal-combustion engine support system and machinery.For example, motor support of the present invention system can be used for glide steering loader or small-sized caterpillar belt formula multi function loader.

Operator cabin 15 comprises the operational window 35 with steering controller 40, the engine cabin with internal-combustion engine 50 or frame 45 and oil hydraulic pump 55.Oil hydraulic pump 55 is operated according to the operation of internal-combustion engine 50.Operator cabin 15 is installed on the top of underframe 20 via gantry pillars 60.In the highly pressurised liquid effect turning down motor running that oil hydraulic pump 55 is carried, rotate or " revolution " around vertical axis on gantry pillars 60 with operation group 25 thereby can drive operator cabin 15.Steering controller 40 is handled by the operator of excavator 10, thereby optionally carries flow of liquid to turning motor, underframe 20 and/or operation group 25.

Underframe 20 comprises rubber or steel crawler belt 65, driving sprocket wheel 70, roller, idle pulley and drive motor.Drive motor is rotation driving sprocket wheel 70 under the effect of the highly pressurised liquid stream that oil hydraulic pump 55 is carried.Crawler belt 65 rotates under the effect of driving sprocket wheel 70, and excavator 10 rotates forward or backward by the left and right sides crawler belt 65 that is subjected to steering controller 40 controls and travels.

Operation group 25 comprises cantilever 75, scraper bowl or arm 80, fixture 85, cantilever cylinder 90, scraper bowl cylinder 95 and fixture cylinder 100.Illustrated fixture 85 is a scraper bowl, and in other embodiments, this fixture 85 can be twist drill, jackhammer or other is suitable for the fixture in building site.Operation group 25 is installed on the place ahead of operator cabin 15 by swing frame 105, and therefore, when being parallel to the building site that crawler belt excavates at needs, operation group 25 can be offset with vertically producing of relative underframe 20 by left and right pivot.Oil hydraulic pump 55 provides pressurized liquid to flow to cantilever cylinder 90, scraper bowl cylinder 95 and fixture cylinder 100, and cantilever 75 relative operator cabins 15 pivots, scraper bowl 80 relative cantilevers 75 pivots, fixture 85 relative scraper bowls 80 are pivoted.Fixture 85 is same to be received from the pressurized stream of oil hydraulic pump 55 other component movement (movable part such as twist drill, saw, rotating brush etc.) with the relative fixture 85 of movable part that drives fixture 85.

Backfiller blade cylinder 110 is pivotally connected between backfiller blade 30 and the underframe 20.The pressurized stream that backfiller blade cylinder 110 receives from oil hydraulic pump 55 is utilized and is contracted in overhanging the reaching with relative underframe 20 liftings or reduction backfiller blade 30.Backfiller blade 30 is used for grading, smooth, backfill, trench digging and common soil-shifting work.Backfiller blade 30 can reduce being supported in ground, thereby the remainder of lifting excavator 10 improves the discharge height of operation group 25.Backfiller blade 30 also is used in stablizes excavator 10 in the mining process.

See also Fig. 3 to Fig. 5, intersect at being respectively yawing axis 120, sidewindering axle 125 and elevation axis 130 of center of gravity 115 places of motor 50, therefore, center of gravity 115 can be described as yawing axis 120, sidewinders the initial point of axle 125 and elevation axis 130.Around these rotations of 120,125,130 be called " deflection " herein, " sidewindering " reaches " pitching ".Yawing axis 120 in the vertical directions, and sidewinder axle 125 and elevation axis 130 (therefore perpendicular to yawing axis 120) and orthogonal in the horizontal direction.Each axis is all perpendicular to the plane through other two axis.Be called " principal plane " (being denoted as 133 among Fig. 5) herein through yawing axis 120 and the plane of sidewindering axle 125.Be called " auxilliary plane " herein through the plane (promptly passing through the horizontal plane of center of gravity 115) of sidewindering axle 125 and yawing axis 130.

Have a plurality of movable parts in the motor 50, comprise crankshaft 135, piston 140, connecting rod 145, camshaft, valve, belt, flywheel 150 and fan 155.Four cylinder engine is along the vertical vibration up and down of its length direction generation relative equilibrium, and three cylinder engine produces unbalanced vibrations, and this unbalanced vibrations cause motor pitching or deflection.Three cylinder engine can be provided with unbalanced flywheel, a large amount of pitching of motor or deflection are converted into the vertical vibration up and down with the similar relative equilibrium of four cylinder engine.Yet three cylinder engine and four cylinder engine all can produce because of the change in torque that engine speed change caused and sidewinder.Therefore, motor installation system of the present invention is mainly put forth effort on the vibrations of isolated vertical direction and is absorbed sidewindering of motor, makes it can be used for the motor that three cylinders or four cylinder engine and other have similar vibrations and torque characteristics.

Crankshaft 135 has center line 160, and this crankshaft 135 rotates under the effect of pistons reciprocating 140 and connecting rod 145.Piston 140 to-and-fro motion in oil hydraulic cylinder 165.The rotation acting of crankshaft 135 is as driving oil hydraulic pump 165.Gas in oil hydraulic cylinder 165 heads and fuel take place under the effect of burning, piston 140 to-and-fro motion.In the illustrated embodiment, oil hydraulic cylinder 165 has vertical basically oil hydraulic cylinder axle 170, and each piston 140 is along pivotal axis 170 to-and-fro motion (promptly being parallel to principal plane 133) of relevant oil hydraulic cylinder 165.In other mode of execution of motor 50, cylinder axle 170 can be non-vertical, and in this case, the inertial force that piston 140 to-and-fro motion are produced has the component of vertical and horizontal both direction.In these embodiments, can adopt the counterbalance of rotation or alternate manner to offset the horizontal component of inertial force and vibrations, make engine installation structure only have the component of vertical direction in fact of engine vibration and the power of sidewindering that change in torque produces, as mentioned before.

Motor 50 comprises the mounting flange 175 that first, second, third engine mount 180,185,190 is installed.Describe first engine mount 180 among Fig. 4 b, be appreciated that second, third engine mount 185,190 is identical in fact with first engine mount 180.Each engine mount 180,185,190 comprises weldment 195, a pair of isolator 200, a pair of cup 205, pipe 210, bolt 215 and nut 220.

Weldment 195 comprises integrally welded base portion 225, flat-top 230 and encircles 235.Base portion 225 comprises flange (Fig. 3) 240 and U-shaped plate 245.Flange 240 comprises and is used to install the mounting hole of weldment 195 to entablature 45.Flat-top 230 covers this U-shaped plate 245.Flat-top 230 and ring 235 have the center hole of alignment, the center hole 250 that the common formation in these holes has expection length.In other embodiments, flat-top 230 can be made into has adequate thickness so that the center hole with expection length to be provided, and encircles 235 thereby can omit, but has increased the material of flat-top 230, and cost may increase thereupon.Base portion 225 comprises the hole 255 of aliging with center hole 250, can be bolt 215 path is provided.

Isolator 200 is positioned on the ring 235, under the flat-top 230.Each isolator 200 comprises that an end difference stretches in the center hole 250 with the part that allows isolator 200.The expection length of center hole 250 is arranged to make between the isolator 200 in the center hole 250 and is kept at a certain distance away.Isolator 200 self comprises the center hole that aligns with center hole 250.A kind of example of isolator that can be commercial is No. 103754 part of the Bare Control Inc. (Barry Control) in Bai Banke city, California, United States state.This isolator 200 can be made by rubber or other elastic material.

Isolator 200 comprise with the cup 205 against flat substantially surface, the direction of engine mount 180,185,190 is according to these planar surfaces.According to this, it is that " vertically " is in principal plane 133 that first, second shown engine mount 180,185 is said to, trimotor assembling set 190 be said to be " parallel " in principal plane 133, its reason is that these are directions of the planar surface of isolators in the engine mount 180,185,190.In an illustrated embodiment, it is " coplane " that first, second engine mount 180,185 is said to, because the planar surface of the isolator in these engine mounts is a coplane.In other embodiments, if an assembling set is higher than another, first, second engine mount 180,185 can be parallel but coplane not.

Cup 205 is arranged on the upper and lower side of isolator 200, and part is extended in opposite directions around isolator 200.Cup 205 can for example be stamped to form by sheetmetal.Each cup 205 is provided with center hole, and the center hole of cup 205 aligns with the center hole of isolator 200 and the center hole of weldment 195.Pipe 210 extend between the internal surface of upper and lower side cup 205 and with this internal surface against.Bolt 215 passes pipe and 210 extends upward, make bolt 215 head and downside glasss 205 against.Weldment 195 around shown in the head of bolt 215 with the protection head not impact of being damaged property.But in other embodiments, bolt 215 can be put upside down setting, make its head and mounting flange 175 against.Nut 220 is screwed to the other end of bolt 215 and is tight against with the mounting flange 175 of motor 50.Fit tightly up to cup 205 and pipe 210, just stop the action of tightening of nut 220.

Pipe 210 provides enough structural rigidity for engine mount 180,185,190.Pipe 210 selects suitable length to make isolator 200 closely be remained between the cup 205, and can select suitable length to make that isolator is subjected to pushing a little to guarantee the tightness of above-mentioned applying assembly between cup 205.The setting of the engine mount 180,185,190 shown in the utilization, the vibrations of motor must be earlier by isolators 200 before arriving entablature 45.Because isolator 200 alternately is in the flat-top 230 of welded part 195 and the state of ring 235 compressions, the vibrations meeting that motor 50 in the vertical directions produce is absorbed by isolator 200.

For reaching desirable vibration isolation, first engine mount 180, second engine mount 185 and crankshaft center line 160 all are positioned at principal plane 133, and first, second engine mount 180,185 equates with center of gravity 115 distances.Yet in the actual product, the crankshaft center line 160 of motor often is positioned at outside the principal plane 133, and is subjected to the constraint in space, first, second engine mount 180,185 can only be arranged to and center of gravity 115 between have the distance that does not wait.

For example, shown crankshaft center line 160 is arranged on about on the lower side two inches of center of gravity 115, about 1/3rd inches position (from the flywheel end face of Fig. 5) and second engine mount, 185 to the first engine mounts, 180 more close centers of gravity 115 (shown in Fig. 4 a) take over.Engine mount 180,185,190 can not be arranged on best in theory position to be considered to adapt to actual design, such as: the versatility that motor is installed; Manufacturing is simplified and is reduced cost; The applicability of universal component; Miniaturization Design; And tolerance build-up.Though be that expectation reaches desirable vibration isolation, in practice, sacrifice some vibration isolation performance or acceptables based on aforementioned these considerations.

In an illustrated embodiment, motor 50 defines a pivotal axis 260 with the tie point of first, second engine mount 180,185, this pivotal axis 260 is located immediately at crankshaft center line 160 belows (that is, pivotal axis 260 and crankshaft center line 160 are parallel to each other and are positioned at same vertical plane).Pivotal axis 260 passes the center of first, second engine mount 180,185 and at flat-top 230 with encircle between 235.

Shown crankshaft center line 160 and pivotal axis 260 be also with to sidewinder axle 125 substantially parallel, but be not positioned at principal plane 133 (that is, in an illustrated embodiment, the parallel but coplane not of the vertical plane that is defined by center line 160 and pivotal axis 260 and principal plane 133).In actual conditions, crankshaft center line 160 and the Eulerian angle of sidewindering 125 one-tenth non-zeros of axle.According to the design of motor, these Eulerian angle can be very little (for example, 1 degree or littler), can relatively large (for example, in 30 to 40 degree), perhaps any angle therebetween.Along with center line 160 more and more near with to sidewinder axle 125 parallel and be located immediately at and sidewinder axle 125 belows, first, second assembling set 180,185 is isolated vibrations and is become more effective.In other embodiments, pivotal axis 260 can be arranged to sidewinder axle 125 parallel.In these embodiments, will there be the deviation of aforesaid Eulerian angle between center line 160 and the pivotal axis 260, thereby coplane not.

First, second engine mount 180,185 supports the total weight in fact of motor 50, and is subjected to the effect of the vertical component of engine vibration.The vertical component of engine vibration alternately applies pressure to the top and the bottom isolator 200 of first, second engine mount 180,185.First, second engine mount 180,185 is not in fact to motor tumbling or rotating resistant function is provided around pivotal axis 260.

The engine speed variation can cause the change in torque of crankshaft 135.The result that this change in torque produces is that motor sidewinders, and it will cause motor 50 to tumble or pivot around pivotal axis 260.In an illustrated embodiment, therefore trimotor assembling set 190 individual responsibilities opposing motor 50 is responsible for absorbing sidewindering of motor around the rotation of pivotal axis 260.In other embodiments, can use the other anti-engine mount that sidewinders to assist of the rotation of trimotor assembling set 190 opposing motors 50 around pivotal axis 260.

Experiment test is the result show, for shown in embodiment in motor 50, about two to four inches of the tie points that improves trimotor assembling set 190 to center of gravity 115 tops, can isolate best by motor and sidewinder the horizontal vibrating that power produces, so best to resisting the effect of tumbling that therefore causes around pivotal axis 260.In other words, trimotor assembling set 190 is positioned at top, secondary plane.In other embodiments, the tie point of trimotor assembling set 190 can move up or down so that level of isolation vibrations and opposing motor are tumbled best.Position and three assembling set 190 level of isolation vibrations and the opposing motor effect of tumbling of trimotor assembling set 190 on the length of motor 50 do not have essence to get in touch.The isolator 200 of trimotor assembling set 190 preferably is arranged to parallel with principal plane 133, and bolt 215 extends perpendicular to principal plane 133.

Various characteristics of the present invention and advantage are set forth in following claim.

Claims (23)

1. the erecting device of a motor, described erecting device comprises:

First and second engine mount, described first and second assembling set supports all wt in fact of described motor, isolate the vibrations on all vertical directions in fact of described motor, and define pivotal axis, wherein said motor can be around described pivotal axis rotation; And

The trimotor assembling set, described trimotor assembling set and described motor interconnect and resist the rotation of described motor around described pivotal axis, and described trimotor assembling set does not support the weight of described motor in fact.

2. erecting device as claimed in claim 1, wherein said motor have with the center of gravity of described motor be initial point yawing axis, sidewinder the axle, elevation axis, and comprising described yawing axis and the principal plane that sidewinders axle, described pivotal axis and described principal plane are not parallel.

3. erecting device as claimed in claim 2, the tie point of wherein said trimotor assembling set and described motor is positioned at outside the described principal plane.

4. erecting device as claimed in claim 1, wherein said motor comprises crankshaft, the center line of described crankshaft and described motor sidewinder the angle that axle becomes a non-zero.

5. erecting device as claimed in claim 1, wherein said motor comprises crankshaft, and the center line of described crankshaft is parallel with described pivotal axis, and described crankshaft center line and described pivotal axis are positioned at same vertical plane.

6. erecting device as claimed in claim 1, wherein each described first, second and trimotor assembling set comprise first, second isolator of being made by elastomeric material, and first, second isolator of each assembling set is under the influence of engine vibration and alternately be in compressive state.

7. erecting device as claimed in claim 1, wherein said motor have with the center of gravity of described motor be initial point yawing axis, sidewinder the axle, elevation axis, and comprise described yawing axis and sidewinder the axle principal plane, described first, second engine mount is vertical with described principal plane, and described trimotor assembling set is parallel with described principal plane.

8. erecting device as claimed in claim 1, wherein said first, second engine mount coplane.

9. operating vehicle comprises:

Frame;

Cantilever, described cantilever is mounted to described frame movably;

Fixture, described fixture is mounted to described cantilever movably;

Internal-combustion engine, described internal-combustion engine comprise that the center of gravity with described internal-combustion engine is first, second and the 3rd of initial point, and the principal plane that comprises described first and second;

At least one oil hydraulic pump, described oil hydraulic pump is operated so that pressurized fluid stream to be provided according to the operation of described internal-combustion engine;

Steering controller, described steering controller can be actuated to guide described liquid stream to operate described cantilever and fixture; And

First, second and the 3rd internal-combustion engine assembling set, described internal-combustion engine assembling set is mounted to described frame;

Wherein said first, second internal-combustion engine assembling set its separately first, second mounting points support described internal-combustion engine, described first, second mounting points defines pivotal axis;

Wherein said first, second engine mount supports all wt in fact of described internal-combustion engine, with the vibrations of frame and internal-combustion engine with the substantially parallel direction of described principal plane on component isolate and the described internal-combustion engine of non resistance tumbling around described pivotal axis; And

Wherein said the 3rd internal-combustion engine assembling set is resisted described internal-combustion engine around the tumbling of described pivotal axis, and does not support any weight of described internal-combustion engine in fact.

10. operating vehicle as claimed in claim 9, wherein said pivotal axis and described principal plane are not parallel.

11. operating vehicle as claimed in claim 9, the tie point of wherein said the 3rd internal-combustion engine assembling set and described internal-combustion engine is positioned at outside the described principal plane.

12. operating vehicle as claimed in claim 9, wherein said internal-combustion engine comprises crankshaft, second angle that becomes a non-zero of the center line of described crankshaft and described internal-combustion engine.

13. operating vehicle as claimed in claim 9, wherein said internal-combustion engine comprises crankshaft, and the center line of described crankshaft is parallel with described pivotal axis, and described crankshaft center line and described pivotal axis are positioned at same vertical plane.

14. erecting device as claimed in claim 9, wherein said first, second and the 3rd internal-combustion engine assembling set respectively comprise first, second isolator of being made by elastomeric material, and first, second isolator of each assembling set is under the influence of internal-combustion engine vibrations and alternately be in compressive state.

15. erecting device as claimed in claim 9, wherein said first, second internal-combustion engine assembling set is vertical with described principal plane, and described the 3rd internal-combustion engine assembling set is parallel with described principal plane.

16. erecting device as claimed in claim 9, wherein said first, second internal-combustion engine assembling set coplane.

17. a method that connects motor and entablature, described motor have with the center of gravity of described motor be initial point yawing axis, sidewinder the axle, elevation axis, and comprise described yawing axis and sidewinder the axle principal plane, described method comprises:

(a) use first, second engine mount to support all wt in fact of described motor;

(b) use described first, second engine mount to define pivotal axis;

(c) use described first, second engine mount but do not use the 3rd assembling set that described engine stand and the engine vibration on all vertical directions are in fact isolated; And

(d) use described the 3rd assembling set but do not use described first, second assembling set to resist described motor tumbling around described pivotal axis.

18. method as claimed in claim 17, wherein step (a) comprises and is arranged to described first, second engine mount vertical with described principal plane.

19. method as claimed in claim 17, wherein step (b) comprises described pivotal axis is defined as with described principal plane and becomes uneven relation.

20. method as claimed in claim 17, wherein said motor comprises crankshaft, described crankshaft has the crankshaft center line, and described step (b) comprises to be arranged to described pivotal axis and described crankshaft center line to be parallel to each other and to be positioned at same vertical plane.

21. method as claimed in claim 17, wherein step (c) is included in provides first, second elastomer element in each described first, second engine mount and utilizes the alternate compression of described first, second elastomer element to absorb engine vibration on all vertical directions in fact.

22. method as claimed in claim 17, wherein step (d) comprises and is arranged to described trimotor assembling set parallel with described principal plane.

23. method as claimed in claim 17, wherein step (d) comprises the top that is arranged on described trimotor assembling set outside the described principal plane and is positioned at described center of gravity.

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