CN201794633U - Sliding type reducing valve device of engine - Google Patents
Sliding type reducing valve device of engine Download PDFInfo
- Publication number
- CN201794633U CN201794633U CN2010202892886U CN201020289288U CN201794633U CN 201794633 U CN201794633 U CN 201794633U CN 2010202892886 U CN2010202892886 U CN 2010202892886U CN 201020289288 U CN201020289288 U CN 201020289288U CN 201794633 U CN201794633 U CN 201794633U
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- reducing valve
- slide block
- camshaft
- pressure
- valve shaft
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- 238000004663 powder metallurgy Methods 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000006837 decompression Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
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Abstract
The utility model discloses a sliding type reducing valve device of an engine. The device comprises a reducing valve seat, a limited upper plate, a slide block, a reducing valve shaft, a limited lower plate and an elastic component, wherein the reducing valve seat is fixedly sleeved at one end of a cam shaft and is provided with a chute and a valve shaft installing hole which leads to the cam shaft from the chute; the limited upper plate is fixed on the reducing valve seat, and one end of the limited upper plate extends towards an opening part of the chute; the slide block is arranged in the chute in a sliding way, and one end of the chute is fixed with a deflector rod; one end of the reducing valve shaft penetrates through the valve shaft installing hole and is close to cams of the cam shaft, the other end of the reducing valve shaft is connected with the deflector rod, the reducing valve shaft can rotate in the valve shaft installing hole, and the reducing valve shaft and the slide block are respectively positioned at the two ends of the axes of the cam shaft; the limited lower plate is positioned between the slide block and the reducing valve shaft; and the elastic component is arranged between the slide block and the limited upper plate or between the slide block and the limited lower plate. The shape of each component of the sliding type reducing valve is regular, the process difficulty is reduced, and the structural strength is simultaneously ensured.
Description
Technical field
The utility model relates to the engine valve actuating mechanism technical field, relates to a kind of sliding type pressure-reducing valve device of engine in particular.
Background technique
It is a kind of motorcycle initiating mode commonly used that pin is stepped on the startup axle.This Starting mode is to give by pin to start power of axle, make motor enter working state by starting a series of linkages of axle drive, need to overcome the big pressure that highpressure produced in the cylinder in this course, therefore the driver need start the bigger power of stepping on of axle when trampling the startup axle, causes comparatively difficulty of startup.
Present motorcycle engine is provided with decompressor mostly, so that reduce the pressure in the cylinder when starting, makes startup lighter.In the prior art, employing is provided with the method that flies bar formula relief valve unit on the camshaft of motorcycle engine.
Referring to Fig. 1, Fig. 1 is the schematic representation that flies bar formula reduction valve.Fly bar formula reduction valve and comprise and fly bar 1, pin 2, pressure-reducing valve shaft 3, spring 4 flies bar pedestal 5, positive stop lug boss 6, valve body 7.
Flying bar formula reduction valve is fixed on the camshaft, when engine start, camshaft can rotate, reduction valve is followed the camshaft rotation, fly bar 1 be subjected to centrifugal action can be to rotating away from the direction in the center of circle, the rotation that flies bar 1 can drive pressure-reducing valve shaft 3 by pin 2 and rotate, and when the rotating speed of camshaft reaches the required rotating speed of normal working, flies the position that bar 1 is positioned at the diagram dotted line.This moment, motor was in non-pressure release state.
When being positioned at the position of solid line as shown in Figure 1, under the cooperation of engine valve actuating mechanism miscellaneous part, the exhaust valve of cylinder is opened, and motor is in the pressure release state.
Motorcycle in the process of moving, motor needs motor integral body to have higher structural strength through the working state that regular meeting is in high-power, high rotating speed, strong motion.The modular constructions such as bar 1, positive stop lug boss 6 and valve body 7 that fly that fly bar formula reduction valve are constructed comparatively complicated, adopt steel to process that then difficulty is bigger, cost is higher, adopts powder metallurgy that processing is easier to, but the powder metallurgy insufficient strength is difficult to guarantee the structural strength of reduction valve.Flying bar 1 with the core component that flies bar formula reduction valve is example, what fly bar 1 is shaped as the arc strip, be provided with allocating slot 10, the features of shape and the loading characteristic in when work that fly bar 1 have determined to need to adopt the higher material of this class formation intensity of steel if seek out higher structural strength.But steel are processed as the arcuate structure that has allocating slot, and it is bigger that moulding and machine add difficulty, and processing cost is higher.If adopt powder metallurgy, though processing cost and difficulty of processing decrease, but because the structural strength of powder metallurgy own is limited, make the structural strength that flies bar 1 be in the bulk strength that is difficult to guarantee reduction valve under high-power, high rotating speed, the strong motion operating mode, the proper functioning of motor is affected at motor.
The model utility content
In view of this, the utility model provides a kind of sliding type pressure-reducing valve device of engine, has solved effectively to fly bar formula reduction valve because the variety of issue that loading characteristic brought in structural feature and the working procedure.Even adopt steel processing, then owing to the structure shape that flies bar formula reduction valve is comparatively complicated, make that the steel difficulty of processing is bigger, cost is higher; If adopt powder metallurgy processing, though comparing steel, difficulty of processing decreases, because the structural strength of powder metallurgy itself is limited, make the structural strength that flies bar formula reduction valve not guarantee.
For achieving the above object, the utility model provides following technological scheme:
A kind of sliding type pressure-reducing valve device of engine comprises:
Be fixedly set in the Pressure relief valve seat of camshaft one end of motor, offer chute on the described Pressure relief valve seat, also offer the valve shaft mounting hole that leads to described camshaft by described chute; Be fixed on the spacing upper plate on the described Pressure relief valve seat, and an end of described spacing upper plate stretches to the opening of described chute; Slidably, be arranged on the slide block in the described chute, an end of described slide block is fixed with driving lever;
One end passes described valve shaft mounting hole, and the cam of close described camshaft, the pressure-reducing valve shaft that the other end links to each other with described driving lever, described pressure-reducing valve shaft can be rotated in described valve shaft mounting hole, described pressure-reducing valve shaft and described slide block lay respectively at the two ends of described camshaft axis, when being under the position, described slide block prescribes a time limit, distance between the lower limb of described pressure-reducing valve shaft and the axis of described camshaft is greater than the Base radius of described camshaft overhead cam, prescribe a time limit when described slide block is on the position, the distance between the lower limb of described pressure-reducing valve shaft and the axis of described camshaft is less than the Base radius of described camshaft overhead cam; Spacing lower plate between described slide block and described pressure-reducing valve shaft; Be arranged on described slide block and described spacing upper plate or be arranged on described slide block and spacing lower plate between elastic member.
Preferably, this device also comprises the limited post on the face that is connected with elastic member that is fixed on described slide block.
Preferably, this device also comprise be fixed on the Pressure relief valve seat in order to prevent that described slide block from skidding off the spacing pressing plate of described chute.
Wherein, described spacing lower plate is fixed on the described spacing pressing plate, and described spacing lower plate and described spacing pressing plate are integral structure.
Wherein, described pressure-reducing valve shaft is provided with a finger, and described finger one end is fixed on the described pressure-reducing valve shaft, and the other end is connected with described driving lever.
Wherein, described slide block is a rectangular structure.
Wherein, described elastic member is a spring.
Wherein, described slide block is connected by screw with described driving lever.
Wherein, described spacing upper plate by screw on described Pressure relief valve seat.
Wherein, the central shaft conllinear of the central shaft of described Pressure relief valve seat and described camshaft.
Via above-mentioned technological scheme as can be known, compared with prior art, the utility model openly provides a kind of sliding type pressure-reducing valve device, because each parts of this device are the regular part in the easy processing of field of machining of shape, if adopt steel as the material of producing reduction valve, sliding type pressure-reducing valve flies bar formula reduction valve difficulty of processing relatively and decreases, if adopt powder metallurgy, then the structural strength of sliding type pressure-reducing valve obviously is better than and flies bar formula reduction valve.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is the schematic representation that flies bar formula reduction valve;
Fig. 2 is the erection drawing of sliding type pressure-reducing valve and camshaft;
Fig. 3 is the transverse cross-sectional view of Pressure relief valve seat and camshaft assembling;
Fig. 4 is the front view of Pressure relief valve seat;
The longitudinal sectional drawing of sliding type pressure-reducing valve that Fig. 5 provides for mode of execution one and camshaft assembling;
The front view of the sliding type pressure-reducing valve that Fig. 6 provides for mode of execution one;
Fig. 7 reaches the sliding type pressure-reducing valve of the position upper limit and the schematic representation of camshaft for mode of execution one slide block;
Fig. 8 reaches the sliding type pressure-reducing valve of position lower limit and the schematic representation of camshaft for mode of execution one slide block;
Fig. 9 is the schematic representation of pressure-reducing valve shaft control exhaust valve;
The front view of the sliding type pressure-reducing valve that Figure 10 provides for mode of execution two;
The longitudinal sectional drawing of sliding type pressure-reducing valve that Figure 11 provides for mode of execution two and camshaft assembling.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
The utility model discloses a kind of sliding type pressure-reducing valve device of engine.
The sliding type pressure-reducing valve that present embodiment provides is fixed on the camshaft of motor.
Referring to Fig. 2, Fig. 2 is the erection drawing of sliding type pressure-reducing valve and camshaft.Camshaft 0 is engine interior one rotating shaft, and when engine start, camshaft 0 quickens rotation, and camshaft 0 was with certain rotational speed when motor was in normal working.Sliding type pressure-reducing valve 1 is enclosed within an end of camshaft 0, and the rotation of camshaft 0 can drive sliding type pressure-reducing valve 1 and follow camshaft 0 rotation.
Referring to Fig. 3 and Fig. 4, Fig. 3 is the transverse cross-sectional view of Pressure relief valve seat and camshaft assembling, and Fig. 4 is the front view of Pressure relief valve seat.
The sliding type pressure-reducing valve 1 that present embodiment provides comprises Pressure relief valve seat 01 and decompression valve member.Pressure relief valve seat 01 is fixed on the camshaft 0, and the decompression valve member is fixed on the Pressure relief valve seat 01.Pressure relief valve seat 01 plays the effect of the miscellaneous part (valve member promptly reduces pressure) of support and fixed decompression valve.Whole reduction valve is to realize and the fixedlying connected of camshaft 0 by Pressure relief valve seat 01.
Pressure relief valve seat 01 is a disc-shaped structure, is provided with the hole in the centre of an end that contacts with camshaft 0 in order to be enclosed within on the camshaft, and the shape in hole and size cooperate with the top of camshaft 0, and realization Pressure relief valve seat 01 is fixedlyed connected with camshaft 0.Pressure relief valve seat 01 should make the central shaft of Pressure relief valve seat 01 and the central shaft conllinear of camshaft 0 when being connected with camshaft 0, the steadiness when following camshaft 0 rotation with assurance sliding type pressure-reducing valve 1.
The intermediate portion of the other end of Pressure relief valve seat 01 offers chute a, and chute a is a groove, is used to hold slide block, and the direction of chute a is along the diameter of the circular external frame of disk.
As shown in Figure 4, cut the side of disk and be platform 010 at the upper outlet place of chute a.Be provided with a valve shaft mounting hole 011 in the bottom of chute a, valve shaft mounting hole 011 has been communicated with the bottom surface and the circular surface that contacts with camshaft 0 of chute a.In order to insert a shaft-type part spare of decompression valve member.
Dotted line shown in Fig. 4 is to represent the external frame of the diverse location of camshaft 0 under this visual angle respectively at 0, three dotted line of sightless camshaft under this visual angle.Outermost dotted line is made up of the semicircle of rule and an oval curve, and the circle at semicircle place is the basic circle of the cam of camshaft 0.
Referring to Fig. 5 and Fig. 6, the front view of the sliding type pressure-reducing valve that the longitudinal sectional drawing of sliding type pressure-reducing valve that Fig. 5 provides for mode of execution one and camshaft assembling, Fig. 6 provide for mode of execution one.
The decompression valve member comprises spacing upper plate 020, spring 021, limited post 022, slide block 023, driving lever 024, pressure-reducing valve shaft 025, pressure-reducing valve shaft driving lever 026, spacing lower plate 027, spacing pressing plate 028, screw 029.
Spacing upper plate 020 is the rectangular plate of a regular shape, and the part of spacing upper plate 020 is fixed on the platform 010 by screw 029, and an end of spring 021 is connected spacing upper plate 020 and does not contact on the part of platform 010, and spring 021 places in the chute a.The other end of spring 021 is connected with slide block 023.The general shape of slide block 023 is a cuboid.The numerical value setting of the length of slide block 023 should guarantee that slide block 023 can slide in chute a, slide block 023 is subjected to the frictional force of chute wall when sliding should be less or be zero.The center of gravity of slide block 023 should be between the central shaft and spacing upper plate 020 of camshaft 0.The surface that slide block 023 is connected with spring 021 is provided with limited post 022, the cylindrical body that is shaped as rule of limited post 022, and limited post 022 and slide block 023 are by being connected.When slide block 023 upwards slided into certain position in chute a, limited post 022 can be run on the spacing upper plate 020, made that slide block 023 can't continue upwards to slide, and promptly spacing upper plate 020 defines the position upper limit of slide block 023.
On the slide block 023 with the surperficial relative face that is provided with limited post 022 on the neutral position be drilled with a screw, driving lever 024 is a rod-like articles, one end of driving lever 024 is provided with screw, the screw of the screw precession slide block 023 of driving lever 024, and realization driving lever 024 is fixedlyed connected with slide block 023.The other end of driving lever 024 has elliptical aperture, and this hole is in order to insert finger 026.Finger 026 be a diameter and length all less than a rod-like articles of driving lever 024, an end of finger 026 inserts in the hole of driving lever 024 lower end as previously mentioned, the other end is fixed on the pressure-reducing valve shaft 025, means of fixation can be fixing for welding.Driving lever 024 and finger 026 all place in the chute a.Moving up and down of driving lever 024 can rotate by finger 026 drive pressure-reducing valve shaft 025.
Pressure-reducing valve shaft 025 is a column structure, pressure-reducing valve shaft 025 is inserted valve shaft mounting hole 011, make the part of pressure-reducing valve shaft 025 be placed in the chute a, a part is positioned at 011 li of valve shaft mounting hole, rest parts is between camshaft 0 and Pressure relief valve seat 01, part between camshaft 0 and Pressure relief valve seat 01 has scarce limit, and the part of definition between camshaft 0 and Pressure relief valve seat 01 is to have the part 0250 that lacks the limit.Pressure-reducing valve shaft 025 is rotated under the indirect drive of driving lever 024, make the scarce limit location following pressure-reducing valve shaft 025 have the part 0250 that lacks the limit rotation and change, the distance that also is presented as the central shaft that lacks limit and camshaft 0 changes, and promptly the lower limb that has the part 0250 that lacks the limit of pressure-reducing valve shaft 025 and the distance of central shaft change.Having the part 0250 that lacks the limit and being uniquely on the sliding type pressure-reducing valve has the part that contacts with the engine valve actuating mechanism miscellaneous part, and the air pressure that promptly whole sliding type pressure-reducing valve can be adjusted cylinder is to finish by the control of the 0250 pair of associated components of part that has scarce limit.
Spacing lower plate 027 is between slide block and pressure-reducing valve shaft, in order to limit the position lower limit of slide block 023.Spacing lower plate 027 is connected for one with spacing pressing plate 028.The rectangular plate that spacing pressing plate 028 is a regular shape (being the clear default a part of pressing plate of annexation that shows driving lever 024 and pressure-reducing valve shaft 025 among Fig. 6), width is greater than chute a, length is greater than the sliding scale of slide block 023, four screws 029 of spacing pressing plate 028 usefulness are fixed on the Pressure relief valve seat 01, and spacing pressing plate 028 mainly plays the effect that anti-limited slip block 023 skids off chute a.Can go out a square opening 0280 on spacing pressing plate 028 when producing spacing pressing plate 028 in actual production, the sheet material of going out is as spacing lower plate 027.Spacing upper plate 020 and spacing lower plate 027 and spacing pressing plate 028 have guaranteed the working stroke and the Security of slide block 023.
When motorcycle engine started, camshaft 0 began rotation, and sliding type pressure-reducing valve 1 is followed camshaft 0 rotation, thus the time rotating speed lower, slide block 023 does not move.When rotating speed rises to a certain degree, slide block 023 overcomes the resistance of spring 021 to moving away from axis direction under action of centrifugal force, because the center of gravity of slide block 023 is between central shaft and spacing upper plate 020, so the centrifugal motion of slide block is presented as the direction slip to spacing upper plate 020.The driving lever 024 that is connected with slide block 023 can drive pressure-reducing valve shaft 025 by finger 026 and realize rotating.
Camshaft 0 rotating speed continues to increase, and makes slide block 023 continue to move upward, and spring 021 is in compressive state.When limited post 022 bumps against spacing upper plate 020, then slide block 023 stops to continue to move upward, pressure-reducing valve shaft 025 this moment rotation angle under the indirect drive of driving lever 024 reaches maximum, has the scarce limit of the part 0250 that lacks the limit and the central shaft distance of camshaft 0 and reaches farthest, promptly lacks the limit outwardly this moment.Referring to Fig. 7, Fig. 7 mode of execution one slide block reaches the sliding type pressure-reducing valve of the position upper limit and the schematic representation of camshaft.The distance of the central shaft of the lower limb that has the part 0250 that lacks the limit of pressure-reducing valve shaft 025 and camshaft is less than the radius of cam base-circle in left side at this moment.
When motor stopped, camshaft 0 stopped operating, and slide block 023 is returned to initial position under the effect of spring 021.Spacing lower plate 027 defines the position bottom of slide block 023, make slide block 023 on the throne deposit still can guarantee slide block 023 in limited time center of gravity between the central shaft and spacing upper plate 020 of camshaft 0.Referring to Fig. 8, Fig. 8 reaches the sliding type pressure-reducing valve of position lower limit and the schematic representation of camshaft for mode of execution one slide block.The central shaft of the scarce back gauge camshaft that has the part 0250 that lacks the limit of pressure-reducing valve shaft 025 is nearest at this moment, and have the radius of cam base-circle of the distance of the lower limb of the part 0250 that lacks the limit and central shaft greater than the left side, be presented as that visually the outward edge of pressure-reducing valve shaft 025 is higher than the edge of left cam.
Referring to Fig. 9, Fig. 9 is the schematic representation of pressure-reducing valve shaft control exhaust valve.Number in the figure is that 2 part is represented exhaust valve, and label is that 3 part is a cylinder, and during proper functioning, the lower end flared structure of exhaust valve 2 is blocked the air leakage door 30 of cylinder 3.The top, upper end of exhaust valve 2 is a flat surface, and the circle at this flat surface and dotted line shown in Figure 9 place is tangent.The circle at diagram dotted line place is the basic circle of camshaft 0 external frame.When camshaft 0 begins to rotate, the track of the part 0250 that has scarce limit when rotating of pressure-reducing valve shaft 025 is a circle, when lacking the central shaft close together of back gauge camshaft 0, the lower limb that promptly has the part 0250 that lacks the limit is not when lacking the limit, this virtual locus circle is greater than cam base circle, the part 0250 that has scarce limit of pressure-reducing valve shaft 025 can be run into the flat surface at top, exhaust valve 2 upper end in the process of rotation, exhaust valve 2 is under the promotion that has the part 0250 that lacks the limit, the horn-like structure of lower end can move down, air leakage door 30 is opened, gas in the cylinder 3 is discharged by air outlet flue 4, reaches the purpose that reduces cylinder 3 internal pressures.This moment, motor was in the pressure release state.
When the rotating speed of camshaft 0 increases gradually, slide block 023 drives driving lever 024 when spacing upper plate 020 slides under action of centrifugal force, driving lever 024 is stirred pressure-reducing valve shaft 025 by finger 026 again, the scarce limit that has a part 0250 that lacks the limit gradually away from central shaft outwardly, it is more and more littler to make having of pressure-reducing valve shaft 025 lack the formed virtual circle of rotary motion trace of lower limb of part 0250 on limit, when rotating, no longer touch the top of exhaust valve 2 up to pressure-reducing valve shaft 025, this moment, air leakage door 30 was closed, and was in non-pressure release state.The motor of this moment is a normal working.
Label is that 20 parts are valve spring, in order to recover the closed condition of air leakage door 30.
Embodiment two
The sliding type pressure-reducing valve device that present embodiment provided is sleeved on the camshaft 0, being provided with of Pressure relief valve seat 01 with reference to mode of execution one, and the composition of decompression valve member is also with mode of execution one, promptly comprise spacing upper plate 020, spring 021, limited post 022, slide block 023, driving lever 024, pressure-reducing valve shaft 025, pressure-reducing valve shaft driving lever 026, spacing lower plate 027, spacing pressing plate 028, screw 029.
Referring to Figure 10 and Figure 11, the front schematic view of the sliding type pressure-reducing valve that Figure 10 provides for mode of execution two.The sliding type pressure-reducing valve that Figure 11 provides for mode of execution two and the longitudinal sectional drawing of camshaft.
Wherein, the position of spacing upper plate 020, slide block 023, driving lever 024, finger 026, pressure-reducing valve shaft 025 and spacing pressing plate 028, annexation each other, and with the annexation of Pressure relief valve seat 01 with reference to mode of execution one, repeat no more.
Different with mode of execution one is, in the present embodiment, spacing lower plate 027 is fixed on the spacing pressing plate 028, the position relatively by time.One end of spring 021 connects slide block 023, and the other end connects spacing lower plate 027, and limited post 022 is fixed on the lower end surface (face that connects spring) of slide block 023.Spacing lower plate 027 plays the effect of the position lower limit that limits slide block 023 equally, the set positions of spacing lower plate 027 should guarantee when limited post 022 is run into spacing lower plate 027, the center of gravity of slide block 023 is between the central axis and spacing upper plate 020 of camshaft 0, and the part 0250 that has scarce limit of pressure-reducing valve shaft 025 can touch the top, upper end of exhaust valve 2.
After the rotational speed of camshaft 0 arrived to a certain degree, still against the force of the spring was to the direction motion away from the axle center for slide block 023, and different with mode of execution 1 is that the spring 021 of this moment is in extended state.Spacing upper plate 020 can play the effect of the position upper limit that limits slide block 023 equally.When camshaft 0 stopped operating, slide block 023 set back under the effect of spring 021, and limited post 022 is run into spacing lower plate 027.
Pressure-reducing valve shaft 025 in the present embodiment cooperates the method for the folding of controlling air leakage door 30 to please refer to mode of execution one with exhaust valve 2, also repeats no more.
Placement between described spacing upper plate 020 of above-mentioned two kinds of mode of executions and the Pressure relief valve seat 01 is not limited only to screw, can also be welding or other are fixedly connected.
Spacing pressing plate 028 also is not limited only to screw with the Placement of Pressure relief valve seat 01, also can be welding or riveted joint.Also not being defined as screw between driving lever 024 and the slide block 023 and being connected, also can be riveted joint.
Described spring 021 can also be substituted by other pressure elasticity parts, is not limited only to spring.
Significantly; above-mentioned two kinds of mode of executions only are two embodiments that can directly apply to practice of the present utility model; under the inspiration of technological thought of the present utility model; those skilled in the art can rule of thumb change the Placement between each parts; perhaps in the position relation that changes under the prerequisite that does not break away from the utility model core technology between each parts, the change of being done under the situation of not making substantive creation a little all belongs to protection domain of the present utility model.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a sliding type pressure-reducing valve device of engine is characterized in that, comprising:
Be fixedly set in the Pressure relief valve seat of camshaft one end of motor, offer chute on the described Pressure relief valve seat, also offer the valve shaft mounting hole that leads to described camshaft by described chute;
Be fixed on the spacing upper plate on the described Pressure relief valve seat, and an end of described spacing upper plate stretches to the opening of described chute;
Slidably, be arranged on the slide block in the described chute, an end of described slide block is fixed with driving lever;
One end passes described valve shaft mounting hole, and the cam of close described camshaft, the pressure-reducing valve shaft that the other end links to each other with described driving lever, described pressure-reducing valve shaft can be rotated in described valve shaft mounting hole, described pressure-reducing valve shaft and described slide block lay respectively at the two ends of described camshaft axis, when being under the position, described slide block prescribes a time limit, distance between the lower limb of described pressure-reducing valve shaft and the axis of described camshaft is greater than the Base radius of described camshaft overhead cam, prescribe a time limit when described slide block is on the position, the distance between the lower limb of described pressure-reducing valve shaft and the axis of described camshaft is less than the Base radius of described camshaft overhead cam;
Spacing lower plate between described slide block and described pressure-reducing valve shaft;
Be arranged on described slide block and described spacing upper plate or be arranged on described slide block and described spacing lower plate between elastic member.
2. device according to claim 1 is characterized in that, also comprises the limited post on the face that is connected with elastic member that is fixed on described slide block.
3. device according to claim 1 is characterized in that, also comprise be fixed on the Pressure relief valve seat in order to prevent that described slide block from skidding off the spacing pressing plate of described chute.
4. device according to claim 3 is characterized in that, described spacing lower plate is fixed on the described spacing pressing plate, and described spacing lower plate and described spacing pressing plate are integral structure.
5. device according to claim 1 is characterized in that described pressure-reducing valve shaft is provided with a finger, and described finger one end is fixed on the described pressure-reducing valve shaft, and the other end is connected with described driving lever.
6. device according to claim 1, described slide block are rectangular structure.
7. device according to claim 1 is characterized in that, described elastic member is a spring.
8. device according to claim 1 is characterized in that, described slide block is connected by screw with described driving lever.
9. device according to claim 1 is characterized in that, described spacing upper plate by screw on described Pressure relief valve seat.
10. device according to claim 1 is characterized in that, the central shaft conllinear of the central shaft of described Pressure relief valve seat and described camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202892886U CN201794633U (en) | 2010-08-05 | 2010-08-05 | Sliding type reducing valve device of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202892886U CN201794633U (en) | 2010-08-05 | 2010-08-05 | Sliding type reducing valve device of engine |
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| CN201794633U true CN201794633U (en) | 2011-04-13 |
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| CN2010202892886U Expired - Lifetime CN201794633U (en) | 2010-08-05 | 2010-08-05 | Sliding type reducing valve device of engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892881A (en) * | 2010-08-05 | 2010-11-24 | 重庆隆鑫机车有限公司 | Sliding type pressure reducing valve device of engine |
-
2010
- 2010-08-05 CN CN2010202892886U patent/CN201794633U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892881A (en) * | 2010-08-05 | 2010-11-24 | 重庆隆鑫机车有限公司 | Sliding type pressure reducing valve device of engine |
| CN101892881B (en) * | 2010-08-05 | 2012-07-04 | 重庆隆鑫机车有限公司 | Sliding type pressure reducing valve device of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110413 Effective date of abandoning: 20120704 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110413 Effective date of abandoning: 20120704 |