CN203202110U - Vibration isolating device of engine - Google Patents
Vibration isolating device of engine Download PDFInfo
- Publication number
- CN203202110U CN203202110U CN 201320080585 CN201320080585U CN203202110U CN 203202110 U CN203202110 U CN 203202110U CN 201320080585 CN201320080585 CN 201320080585 CN 201320080585 U CN201320080585 U CN 201320080585U CN 203202110 U CN203202110 U CN 203202110U
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- vibration isolation
- attachment post
- vibration isolating
- damping pad
- oil storage
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Abstract
The utility model discloses a vibration isolating device of an engine. The vibration isolating device of the engine aims to overcome the defects that an existing vibration isolating device of the engine is short in service life and poor in vibration isolating effect. The vibration isolating device of the engine comprises a vibration isolating barrel, wherein a sliding piston and a floating piston are arranged inside the vibration isolating barrel from top to bottom, a top cover is arranged at the top end of the vibration isolating barrel and a bottom cover is arranged at the bottom end of the vibration isolating barrel, an upper oil storage cavity is formed inside the vibration isolating barrel and between the top cover and the sliding piston, a lower oil storage cavity is formed between the sliding piston and the floating piston, a gas storage cavity is formed between the floating piston and the bottom cover, an inflation hole communicated with the gas storage cavity is formed in the outer wall of the vibration isolating barrel, a circulating valve and a rebound valve which are communicated with the upper oil storage cavity and the lower oil storage cavity are arranged on the sliding piston, a connecting column is connected to the top cover in a sliding mode, the lower end of the connecting column is fixedly connected to the sliding piston, an anti-vibration pad is sleeved on the connecting column and is connected to the upper end of the top cover, the bottom portion of the vibration isolating barrel is fixed on a vehicle body, and the top portion of the connecting column is connected with a fixing support of the engine through bolts. The vibration isolating device of the engine has the advantages of being long in service life and good in vibration isolating effect.
Description
Technical field
The utility model relates to a kind of engine accessory, and more particularly, it relates to a kind of engine vibration isolation device of good damping result.
Background technique
Development along with automotive industry, people are more and more higher to the requirement of Security, travelling comfort and the environment protection type of car, the vibrative standard of car also there is more and more higher requirement, engineers and technicians make coachbuilt body produce the vibration aspect to the impact from the road surface and have done technology upgrading at present, and the vibration and the noise problem that produce when still working for motor car engine are not well solved all the time.The bad travelling comfort that not only can affect in the car of engine vibration isolation, and can damage the performance of motor own, so that affect the working life of automobile.In existing design, generally can adopt isolation mounting that motor is carried out vibration and noise reducing, but the isolation mounting that uses at present generally is to adopt rubber pad to carry out vibration isolation, because the engine long time service produces vibration, rubber pad is easily tired, can produce high temperature during next engine operation, easily makes the rubber pad corruption, so the working life of isolation mounting is short, and vibration isolating effect is poor.
Chinese patent notification number CN201322074Y, a kind of vibration-absorptive pad of engine is disclosed, be arranged between motor and the automobile support, the rubber body that comprises a column, along the central shaft of rubber body to being fixed with inner sleeve, the outside of rubber body is fixed with outer sleeve, and the rubber body outside has some grooves vertically.Under the effect of impact force, rubber body produces distortion and absorbs the vibrative impact energy of motor, but this damping pad is short working life, and vibration isolating effect is poor.
The model utility content
It is short working life that the utility model has overcome existing engine vibration isolation device, and the deficiency that vibration isolating effect is poor provides a kind of engine vibration isolation device, its long service life, and vibration isolating effect is good.
In order to solve the problems of the technologies described above, the utility model by the following technical solutions: a kind of engine vibration isolation device, comprise the vibration isolation cylinder, be provided with from top to bottom sliding piston and floating piston in the vibration isolation cylinder, vibration isolation cylinder top and bottom are respectively equipped with top cover and bottom; Consist of the oil storage epicoele between vibration isolation cylinder internal head cover and the sliding piston, consist of the oil storage cavity of resorption between sliding piston and the floating piston, consist of air storing cavity between floating piston and the bottom, the vibration isolation drum outer wall is provided with the air-filled pore that is communicated with air storing cavity, and sliding piston is provided with flowing valve and the rebound valve that is communicated with oil storage epicoele and oil storage cavity of resorption; Slidably be connected with attachment post on the top cover, the attachment post lower end is fixedly connected on the sliding piston, is socketed with damping pad on the attachment post, and damping pad is connected to the top cover upper end.The bottom of vibration isolation cylinder is fixed on the vehicle body, and the top of attachment post is connected with bolt with the motor fixed support.
The engine vibration isolation device can play the effect of three grades of vibration dampings, and first order damper mechanism is damping pad, can directly be absorbed by damping pad if only produce small vibration during engine operation and reverse, and play the effect of one-level vibration damping.When the engine luggine amplitude is larger, shape with damping pad of one-level vibration damping changes a lot, the attachment post that is connected with damping pad moves down, driving the sliding piston that is connected with attachment post moves down in the oil storage cavity of resorption of vibration isolation cylinder, the volume of oil storage this moment cavity of resorption reduces, and oil pressure raises, and fluid is in flowing valve flows to the oil storage epicoele, flowing valve forms the damping force that motor is vibrated downwards to the throttling action of fluid, plays the effect of secondary vibration damping.When the motor violent oscillatory motion, time of vibration prolongs, and the oil pressure in the oil storage cavity of resorption promotes floating piston and moves down, air pressure in the air storing cavity increases, the air supporting of air storing cavity inner high voltage floating piston, and motor is played buffer function, and this has namely played the effect of three grades of vibration dampings.When motor upwards vibrates, damping pad is stretched, driving simultaneously attachment post moves up, sliding piston moves up, and the volume of oil storage epicoele diminishes, and oil pressure raises, fluid is in rebound valve flows to the oil storage cavity of resorption, rebound valve has just formed the damping force that motor is upwards vibrated to the throttling action of fluid, is fully played with the buffer function that guarantees extension stroke Elastic element, plays the effect of vibration isolation.The engine vibration isolation device has three grades of effectiveness in vibration suppression, and motor vibrates downwards and makes progress vibration can both vibration damping, and the vibration damping and vibration isolation of motor is effective.Owing to being three grades of buffer shock-absorbings, the impact force of motor divides three grading row bufferings to absorb, and is little to the impact force of every one-level damping device, the long service life of isolation mounting.
As preferably, the floating piston lower end surface is the arc-shaped curved surface structure of evagination.This structure has increased the lower end surface of floating piston and the area of contact of gas storage intracavity gas, has increased the support force of gas storage intracavity gas to floating piston, increases by three grades of effectiveness in vibration suppression to motor.
As preferably, the lower end surface of sliding piston is stretched out in the lower end of attachment post, and the upper-end surface of floating piston is provided with the dodge pit relative with the attachment post lower end, dodges the curved curved-surface structure of pit.After attachment post moved down, the lower end of attachment post reaches dodged in the pit, takes full advantage of the buffer space of oil storage cavity of resorption, increased the level 2 buffering effect.
As preferably, be socketed with dust-proof cover on the attachment post, dust-proof cover covers on the damping pad, and dust-proof cover comprises the flange that base plate and bottom edge turn over downwards, and the lower end surface of flange is arranged on the below of top cover upper-end surface.Dust-proof cover prevents dust and other impurities pollution damping pad and vibration isolation cylinder effectively, increases the working life of isolation mounting.
As preferably, damping pad is rubber pad, damping pad is ring, the damping pad outward edge is laid with four extension blocks, the width of extension block is along the diameter of damping pad to increasing gradually away from the damping pad direction, the bi-side that extension block is connected with damping pad are the arcuate structure of indent, and the outer side surface of extension block is the arc of evagination.As damping pad, energy-obsorbing and damping is effective with rubber pad.Extension block has increased the area of damping pad, the Effective Raise effectiveness in vibration suppression.
As preferably, the sliding piston outer wall is provided with a circle slip oil ring groove, is provided with the fluid seal ring in the slip oil ring groove.Between sliding piston outer wall and vibration isolation cylinder inwall, the fluid seal ring is set, increases sealing effect.
As preferably, the floating piston outer wall is provided with a circle float oil ring groove and a circle compression, and compression is arranged on the below of the oil ring groove that floats, and is provided with the fluid seal ring in the oil ring groove that floats, and is provided with the gas seal circle in the compression.The gentle body sealing ring of fluid seal ring is set on the floating piston outer wall, has increased sealing effect.
As preferably, be provided with oilhole in the middle of the attachment post, oilhole run through attachment post the upper-end surface and and attachment post coaxial, the lower end of attachment post is Step Shaft shape structure, sliding piston be socketed in the lower end of attachment post and on attachment post connecting bolt fastening, attachment post is provided with the side opening that is communicated with oil storage epicoele and oilhole.Inject fluid by the oilhole on the attachment post to oil storage epicoele and oil storage cavity of resorption, fluid injects finishes the rear enclosed oilhole, prevents that fluid from refluxing.
As preferably, vibration isolation cylinder lower edge is provided with the flange of evagination, and flange is provided with the fastener hole of several uniform settings.This structure makes things convenient for the vibration isolation cylinder fastening with being connected of vehicle body.
As preferably, top cover and vibration isolation cylinder integrative-structure, bottom is connected by screw on the vibration isolation cylinder, between bottom and the vibration isolation cylinder seal ring is set.Top cover and vibration isolation cylinder integrative-structure good seal performance arrange the sealability that seal ring increases air storing cavity between bottom and vibration isolation cylinder.
Compared with prior art, the beneficial effects of the utility model are: the engine vibration isolation device has three grades of effectiveness in vibration suppression, and motor vibrates downwards and makes progress vibration can both vibration damping, and the vibration damping and vibration isolation of motor is effective.Owing to being three grades of buffer shock-absorbings, the impact force of motor divides three grading row bufferings to absorb, and is little to the impact force of every one-level damping device, the long service life of isolation mounting.
Description of drawings
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the structural representation of removal dust-proof cover of the present utility model;
Among the figure: 1, vibration isolation cylinder, 2, sliding piston, 3, floating piston, 4, top cover, 5, bottom, 6, air-filled pore, 7, flowing valve, 8, rebound valve, 9, attachment post, 10, damping pad, 11, dodge pit, 12, dust-proof cover, 13, base plate, 14, flange, 15, extension block, 16, slip oil ring groove, 17, the fluid seal ring, 18, oil ring groove floats, 19, compression, 20, the gas seal circle, 21, oilhole, 22, side opening, 23, flange, 24, fastener hole, 25, oil storage epicoele, 26, oil storage cavity of resorption, 27, air storing cavity, 28, vent hole.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
Embodiment: a kind of engine vibration isolation device (referring to accompanying drawing 1), comprise columnar vibration isolation cylinder 1, be provided with from top to bottom sliding piston 2 and floating piston 3 in the vibration isolation cylinder 1, vibration isolation cylinder 1 top and bottom are respectively equipped with top cover 4 and bottom 5, top cover 4 and vibration isolation cylinder 1 integrative-structure, bottom 5 is connected by screw on vibration isolation cylinder 1, between bottom 5 and the vibration isolation cylinder 1 seal ring is set.Vibration isolation cylinder 1 lower edge is provided with the flange 23 of evagination, and flange 23 is provided with the fastener hole 24 of four uniform settings.Consist of oil storage epicoele 25 between vibration isolation cylinder 1 internal head cover 4 and the sliding piston 2, consist of oil storage cavity of resorption 26 between sliding piston 2 and the floating piston 3, consist of air storing cavity 27 between floating piston 3 and the bottom 5.Top cover 4 is provided with the vent hole 28 that is communicated with oil storage epicoele 25, and vent hole makes things convenient for oil storage epicoele 25 interior gas purgings.Vibration isolation cylinder 1 outer wall is provided with the air-filled pore 6 that is communicated with air storing cavity 27, and 6 of air-filled pores allow gas to be filled with in export-oriented air storing cavity 27, and gas can not discharged by air-filled pore from air storing cavity 27.Sliding piston 2 is provided with flowing valve 7 and the rebound valve 8 that is communicated with oil storage epicoele 25 and oil storage cavity of resorption 26; Slidably be connected with attachment post 9 on the top cover 4, the link position of attachment post 9 and top cover 4 is provided with circle seal ring and a lining, and lining is socketed between attachment post 9 and the top cover 4, and lining stretches out the lower end surface of top cover 4.Attachment post 9 lower ends are fixedly connected on the sliding piston 2, are socketed with damping pad 10 on the attachment post 9, and damping pad 10 is connected to top cover 4 upper ends.Floating piston 3 lower end surfaces are the arc-shaped curved surface structure of evagination, and the lower end surface of sliding piston 2 is stretched out in the lower end of attachment post 9, and the upper-end surface of floating piston 3 is provided with relative with the attachment post 1 lower end pit 11 of dodging, and dodges pit 11 curved curved-surface structures.Floating piston 3 outer walls are provided with the unsteady oil ring groove 18 of a circle and a circle compression 19, and compression 19 is arranged on the below of the oil ring groove 18 that floats, and is provided with the fluid seal ring in the oil ring groove 18 that floats, and is provided with gas seal circle 20 in the compression 19.Sliding piston 2 outer walls are provided with a circle slip oil ring groove 16, are provided with fluid seal ring 17 in the slip oil ring groove 16.Be provided with oilhole 21 in the middle of the attachment post 9, oilhole 21 run through attachment post 9 the upper-end surface and and attachment post 9 coaxial, the lower end of attachment post 9 is Step Shaft shape structure, sliding piston 2 middle cover be connected on the lower end of attachment post 9 and on attachment post 9 connecting bolt fastening, attachment post 9 and sliding piston link position be provided with two the circle seal rings.Attachment post 9 is provided with the side opening 22 that is communicated with oil storage epicoele 25 and oilhole 21.Damping pad 10 is rubber pad, damping pad 10 is ring (referring to accompanying drawing 2), damping pad 10 outward edges are laid with four extension blocks 15, the width of extension block 15 is along the diameter of damping pad 10 to increasing gradually away from damping pad 10 directions, the bi-side that extension block 15 is connected with damping pad 10 are the arcuate structure of indent, and the outer side surface of extension block 15 is the arc of evagination.Be socketed with dust-proof cover 12 on the attachment post 9, dust-proof cover 12 covers on the damping pad 10, and dust-proof cover 12 comprises the flange 14 that base plate 13 and bottom edge turn over downwards, and the lower end surface of flange 14 is arranged on the below of top cover 4 upper-end surfaces.
The bottom of vibration isolation cylinder is fixed on the vehicle body, and the top of attachment post is connected with bolt with the motor fixed support.The engine vibration isolation device can play the effect of three grades of vibration dampings, and first order damper mechanism is damping pad, can directly be absorbed by damping pad if only produce small vibration during engine operation and reverse, and play the effect of one-level vibration damping.When the engine luggine amplitude is larger, shape with damping pad of one-level vibration damping changes a lot, the attachment post that is connected with damping pad moves down, driving the sliding piston that is connected with attachment post moves down in the oil storage cavity of resorption of vibration isolation cylinder, the volume of oil storage this moment cavity of resorption reduces, and oil pressure raises, and fluid is in flowing valve flows to the oil storage epicoele, flowing valve forms the damping force that motor is vibrated downwards to the throttling action of fluid, plays the effect of secondary vibration damping.When the motor violent oscillatory motion, time of vibration prolongs, and the oil pressure in the oil storage cavity of resorption promotes floating piston and moves down, air pressure in the air storing cavity increases, the air supporting of air storing cavity inner high voltage floating piston, and motor is played buffer function, and this has namely played the effect of three grades of vibration dampings.When motor upwards vibrates, damping pad is stretched, driving simultaneously attachment post moves up, sliding piston moves up, and the volume of oil storage epicoele diminishes, and oil pressure raises, fluid is in rebound valve flows to the oil storage cavity of resorption, rebound valve has just formed the damping force that motor is upwards vibrated to the throttling action of fluid, is fully played with the buffer function that guarantees extension stroke Elastic element, plays the effect of vibration isolation.The engine vibration isolation device has three grades of effectiveness in vibration suppression, and motor vibrates downwards and makes progress vibration can both vibration damping, and the vibration damping and vibration isolation of motor is effective.Owing to being three grades of buffer shock-absorbings, the impact force of motor divides three grading row bufferings to absorb, and is little to the impact force of every one-level damping device, the long service life of isolation mounting.
Above-described embodiment is a kind of better scheme of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim puts down in writing.
Claims (10)
1. an engine vibration isolation device is characterized in that, comprises vibration isolation cylinder (1), is provided with from top to bottom sliding piston (2) and floating piston (3) in the vibration isolation cylinder, and vibration isolation cylinder top and bottom are respectively equipped with top cover (4) and bottom (5); Consist of oil storage epicoele (25) between vibration isolation cylinder internal head cover and the sliding piston, consist of oil storage cavity of resorption (26) between sliding piston and the floating piston, consist of air storing cavity (27) between floating piston and the bottom, the vibration isolation drum outer wall is provided with the air-filled pore (6) that is communicated with air storing cavity, and sliding piston is provided with flowing valve (7) and the rebound valve (8) that is communicated with oil storage epicoele and oil storage cavity of resorption; Slidably be connected with attachment post (9) on the top cover, the attachment post lower end is fixedly connected on the sliding piston, is socketed with damping pad (10) on the attachment post, and damping pad is connected to the top cover upper end.
2. engine vibration isolation device according to claim 1 is characterized in that, the floating piston lower end surface is the arc-shaped curved surface structure of evagination.
3. engine vibration isolation device according to claim 1 is characterized in that, the lower end surface of sliding piston is stretched out in the lower end of attachment post, and the upper-end surface of floating piston is provided with relative with the attachment post lower end pit (11) of dodging, and dodges the curved curved-surface structure of pit.
4. engine vibration isolation device according to claim 1, it is characterized in that, be socketed with dust-proof cover (12) on the attachment post, dust-proof cover covers on the damping pad, dust-proof cover comprises the flange (14) that base plate (13) and bottom edge turn over downwards, and the lower end surface of flange is arranged on the below of top cover upper-end surface.
5. according to claim 1 and 2 or 3 or 4 described engine vibration isolation devices, it is characterized in that, damping pad is rubber pad, damping pad is ring, the damping pad outward edge is laid with four extension blocks (15), the width of extension block is along the diameter of damping pad to increasing gradually away from the damping pad direction, and the bi-side that extension block is connected with damping pad are the arcuate structure of indent, and the outer side surface of extension block is the arc of evagination.
6. according to claim 1 and 2 or 3 or 4 described engine vibration isolation devices, it is characterized in that, the sliding piston outer wall is provided with a circle slip oil ring groove (16), is provided with fluid seal ring (17) in the slip oil ring groove.
7. according to claim 1 and 2 or 3 or 4 described engine vibration isolation devices, it is characterized in that, the floating piston outer wall is provided with the unsteady oil ring groove (18) of a circle and a circle compression (19), compression is arranged on the below of the oil ring groove that floats, be provided with the fluid seal ring in the unsteady oil ring groove, be provided with gas seal circle (20) in the compression.
8. according to claim 1 and 2 or 3 or 4 described engine vibration isolation devices, it is characterized in that, be provided with oilhole (21) in the middle of the attachment post, oilhole run through attachment post the upper-end surface and and attachment post coaxial, the lower end of attachment post is Step Shaft shape structure, sliding piston be socketed in the lower end of attachment post and on attachment post connecting bolt fastening, attachment post is provided with the side opening (22) that is communicated with oil storage epicoele and oilhole.
9. engine vibration isolation device according to claim 8 is characterized in that, vibration isolation cylinder lower edge is provided with the flange (23) of evagination, and flange is provided with the fastener hole (24) of several uniform settings.
10. according to claim 1 and 2 or 3 or 4 described engine vibration isolation devices, it is characterized in that, top cover and vibration isolation cylinder integrative-structure, bottom is connected by screw on the vibration isolation cylinder, between bottom and the vibration isolation cylinder seal ring is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080585 CN203202110U (en) | 2013-02-21 | 2013-02-21 | Vibration isolating device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080585 CN203202110U (en) | 2013-02-21 | 2013-02-21 | Vibration isolating device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202110U true CN203202110U (en) | 2013-09-18 |
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ID=49146220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320080585 Expired - Fee Related CN203202110U (en) | 2013-02-21 | 2013-02-21 | Vibration isolating device of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202110U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567051A (en) * | 2014-12-17 | 2015-04-29 | 中国科学院紫金山天文台 | Heating device for space exploration instrument |
| CN114810917A (en) * | 2022-05-18 | 2022-07-29 | 太原科技大学 | Heavy engineering equipment driver's cabin vibration isolation device |
-
2013
- 2013-02-21 CN CN 201320080585 patent/CN203202110U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567051A (en) * | 2014-12-17 | 2015-04-29 | 中国科学院紫金山天文台 | Heating device for space exploration instrument |
| CN104567051B (en) * | 2014-12-17 | 2017-01-18 | 中国科学院紫金山天文台 | Heating device for space exploration instrument |
| CN114810917A (en) * | 2022-05-18 | 2022-07-29 | 太原科技大学 | Heavy engineering equipment driver's cabin vibration isolation device |
| CN114810917B (en) * | 2022-05-18 | 2023-10-03 | 太原科技大学 | Cab vibration isolation device for heavy engineering equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20150221 |
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| EXPY | Termination of patent right or utility model |