CN104163096A - Engine suspension device for four-cylinder diesel engine - Google Patents
Engine suspension device for four-cylinder diesel engine Download PDFInfo
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- CN104163096A CN104163096A CN201310672337.2A CN201310672337A CN104163096A CN 104163096 A CN104163096 A CN 104163096A CN 201310672337 A CN201310672337 A CN 201310672337A CN 104163096 A CN104163096 A CN 104163096A
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- vibration damping
- rubber cushion
- damping rubber
- hole
- diesel engine
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Abstract
The invention discloses an engine suspension device for a four-cylinder diesel engine. The engine suspension device comprises a lower vibration reduction rubber pad and an upper vibration reduction rubber pad and is characterized in that the lower vibration reduction rubber pad is of a convex circular truncated cone structure, a through hole is formed in the center of a combination of the upper vibration reduction rubber pad and the lower vibration reduction rubber pad, a connection screw is arranged in the through hole and sleeved with a screw shaft sleeve, a gap is formed between the top end of the screw shaft sleeve and the upper end surface of the upper vibration reduction rubber pad, and the edges of the two end surfaces of a large-diameter circular truncated cone are respectively provided with two bosses. After being combined, the suspension device is connected to a supporting corner of the diesel engine by locking the connection screw. When the whole suspension device is compressed to be as long as the screw shaft sleeve and namely, the gap between the screw shaft sleeve and the upper vibration reduction rubber pad is compacted, assembly of the suspension device is completed. The two bosses generate three degrees of rigidity under different operating states of the diesel engine so as to meet different requirements of the diesel engine for the rigidity at different rotation speed stages. The suspension device always has the best vibration reduction effect due to reasonable rigidity matching.
Description
Technical field
The present invention relates to used for diesel engine fixed equipment in a kind of construction machinery and equipment, relate in particular to four-cylinder diesel engine engine suspension device.
Background technology
At present, small-sized four-cylinder diesel engine is widely used on the industrial vehicle of small engineering machinery.Due to the two-stage reciprocating inertia force overbalance of the piston connecting bar system in diesel engine, with respect to six-cylinder diesel engine, vibration during four-cylinder diesel engine operation is more violent; Based on this, people can apply mechanically the shock pad of four-cylinder diesel engine the structure of six-cylinder diesel engine, to after its scaled down, use, to reach the effect of four-cylinder diesel engine vibration damping, but often there are various drawbacks in this mode of applying mechanically, cushioning performance is bad, complex structure, manufacturing cost is higher, the demand of little rigidity when large rigidity and high rotating speed in the time of can not simultaneously meeting slow speed of revolution.For small-sized four-cylinder diesel engine, there is no matching used vibration reduction suspending device, need to design matching used vibration reduction suspending device at present, to reach good effectiveness in vibration suppression and rigidity requirement.
Summary of the invention
The present invention, on the basis of above-mentioned drawback, provides a kind of suspending apparatus for small-sized four-cylinder diesel engine, and this apparatus structure is simple, low cost of manufacture, and when can meet cushioning performance, the demand of little rigidity when large rigidity and high rotating speed in the time of meeting slow speed of revolution again.
The present invention realizes by following technical scheme:
A kind of four-cylinder diesel engine engine suspension device of the present invention, comprise: lower vibration damping rubber cushion, upper vibration damping rubber cushion, described lower vibration damping rubber cushion is positioned at bottom, upper vibration damping rubber cushion is positioned at top, upper and lower vibration damping rubber cushion is full rubber structure, the junction of lower vibration damping rubber cushion and upper vibration damping rubber cushion is provided with outer chamfering, on upper vibration damping rubber cushion, be provided with interior chamfering with outer chamfering corresponding position, it is characterized in that: described lower vibration damping rubber cushion is convex frustum cone structure, Wei great footpath, bottom round platform, top is boss, its center is provided with lower through-hole, the upper through hole that upper vibration damping rubber cushion center after combination arranges is corresponding with the lower through-hole on lower vibration damping rubber cushion, form through hole, the in-built connecting screw rod that is equipped with of through hole, connecting screw rod outer cover in through hole has screw rod axle sleeve.
Described connecting screw rod runs through through hole completely, and screw rod axle sleeve runs through lower through-hole, and there is certain distance on screw rod axle sleeve top apart from the upper surface of upper vibration damping rubber cushion, and this is apart from forming space, and in addition, connecting screw rod adopts gauge member, can effectively reduce costs.
Two end face edge places of described large footpath round platform are respectively provided with two rank boss, be respectively one-level boss and secondary boss, boss can produce different rigidity values when different amount of compressions, boss structure is in order to produce different rigidity when the different rotating speeds, to reach optimum effectiveness in vibration suppression, in lower vibration damping rubber cushion, the lower through-hole place of round platform bottom, large footpath is provided with screw head groove, the nearly screw head groove of spiral shell head rest one end of the connecting screw rod after device.
The effect of upper vibration damping rubber cushion is mainly that restriction diesel engine is upwards beated, by its size reduction, played cost-saving effect, lower vibration damping rubber cushion coordinates with bolt axle sleeve is split type, easy processing simple in structure, cost-saving, this suspending apparatus is connected with an angle for diesel engine, laterally enough thick rubber layer has guaranteed lateral stiffness, the horizontal scissoring vibration of energy actv. balance diesel engine, instantly vibration damping rubber cushion, upper vibration damping rubber cushion, connecting screw rod, after the combination of screw rod axle sleeve, by locking connecting screw rod, making this suspending apparatus be connected to diesel engine props up on angle, when whole suspending apparatus is compressed to the length of screw rod axle sleeve, after namely the space of screw rod axle sleeve and upper vibration damping rubber cushion is compacted, lock stop stressed joint screw rod, suspending apparatus installation.
For the suspending apparatus after installing, when diesel engine slow speed of revolution is worked, diesel engine suspends under a state that angle is less in vibration acceleration, vibration displacement is larger, and at this moment larger vibration displacement can all flatten two-stage boss, and suspending apparatus has produced maximum rigidity; Along with the rising of rotating speed, diesel engine suspends, and a vibration acceleration at place, angle strengthens, vibration displacement progressively reduces, and in the medium speed stage, secondary boss is driven plain, and suspending apparatus rigidity at this moment also reduces; When diesel engine reaches maximum speed, its vibration acceleration at place, angle that suspends reaches maximum, and vibration displacement is minimum, at this moment without any one-level boss, is driven plain, and suspending apparatus rigidity is minimum.Two-stage boss has produced three kinds of different-stiffness and has adapted to the different demands of diesel engine different rotating speeds stage to rigidity under the different running statees of diesel engine, and reasonably Rigidity Matching makes suspending apparatus total energy produce best effectiveness in vibration suppression.
Accompanying drawing explanation
The mounting structure schematic diagram that accompanying drawing 1 is this suspending apparatus
Accompanying drawing 2 is lower shock-reducing rubber mat structure schematic diagram in this suspending apparatus
Accompanying drawing 3 is partial enlarged drawing A in accompanying drawing 2
Accompanying drawing 4 is upper shock-reducing rubber mat structure schematic diagram in this suspending apparatus
The specific embodiment
Below in conjunction with accompanying drawing explanation, the present invention is further elaborated.
As shown in Figure 1, a kind of four-cylinder diesel engine engine suspension device of the present invention, comprise: lower vibration damping rubber cushion 1, upper vibration damping rubber cushion 2, described lower vibration damping rubber cushion 1 is positioned at bottom, upper vibration damping rubber cushion 2 is positioned at top, lower vibration damping rubber cushion 1 is provided with outer chamfering 7 with the junction of upper vibration damping rubber cushion 2, on upper vibration damping rubber cushion 2, be provided with interior chamfering 8 with outer chamfering 7 corresponding positions, it is characterized in that: described lower vibration damping rubber cushion 1 is convex frustum cone structure, Wei great footpath, lower end round platform 14, upper end is boss 9, its center is provided with lower through-hole 13, two end face edge places of large footpath round platform 14 are respectively provided with two rank boss, be respectively one-level boss 5 and secondary boss 6, secondary boss 6 is positioned at the outside of one-level boss 5, the upper through hole 12 that upper vibration damping rubber cushion 2 centers after combination arrange is corresponding with the lower through-hole 13 on lower vibration damping rubber cushion 1, form through hole, the in-built connecting screw rod 3 that is equipped with of through hole, connecting screw rod 3 outer cover in through hole have screw rod axle sleeve 4, connecting screw rod 3 runs through through hole completely, screw rod axle sleeve 4 runs through lower through-hole 13, there is certain distance on screw rod axle sleeve 4 tops apart from the upper surface of upper vibration damping rubber cushion 2, this is apart from forming space 11.
As Fig. 2, shown in Fig. 3, in lower vibration damping rubber cushion 1, lower through-hole 13 places of round platform 14 bottoms, large footpath are provided with screw head groove 10, outer chamfering 7 is positioned on projection 9, the thickness of large footpath round platform 14 is 0.2～0.35 times of himself diameter, the integral thickness of lower vibration damping rubber cushion 1 is 0.42～0.67 times of large footpath round platform 14 diameters, in lower vibration damping rubber cushion 1, the diameter of boss 9 is 0.43～0.46 times of large footpath round platform 14 diameters, the diameter of upper through hole 12 and lower through-hole 13 is that the diameter of 0.14～0.17 times of upper vibration damping rubber cushion 2 of large footpath round platform 14 diameters is 0.6～0.7 times of large footpath round platform 14 diameters, the thickness of upper vibration damping rubber cushion 2 is 0.35～0.4 times of large footpath round platform 14 diameters, outer chamfering 7 is identical with interior chamfering 8 chamfer angles, value 4～7mm, and the thickness of screw rod axle sleeve 4 is 1mm, length is 0.688～0.756 times of large footpath round platform 14.
While specifically installing and using, instantly after vibration damping rubber cushion 1, upper vibration damping rubber cushion 2, connecting screw rod 3,4 combinations of screw rod axle sleeve, by locking connecting screw rod 3, making this suspending apparatus be connected to diesel engine props up on angle, when whole suspending apparatus is compressed to the length of screw rod axle sleeve 4, after namely the space of screw rod axle sleeve 4 and upper vibration damping rubber cushion 2 is compacted, lock stop stressed joint screw rod 3, suspending apparatus installation; For the suspending apparatus after installing, when diesel engine slow speed of revolution is worked, diesel engine suspends under a state that angle is less in vibration acceleration, vibration displacement is larger, at this moment larger vibration displacement can all flatten two-stage boss (one-level boss 5 and secondary boss 6), and suspending apparatus has produced maximum rigidity; Along with the rising of rotating speed, diesel engine suspends, and a vibration acceleration at place, angle strengthens, vibration displacement progressively reduces, and in the medium speed stage, secondary boss 6 is driven plain, and suspending apparatus rigidity at this moment also reduces; When diesel engine reaches maximum speed, its vibration acceleration at place, angle that suspends reaches maximum, and vibration displacement is minimum, at this moment without any boss, is driven plain, and suspending apparatus rigidity is minimum.Two-stage boss has produced three kinds of different-stiffness and has adapted to the different demands of diesel engine different rotating speeds stage to rigidity under the different running statees of diesel engine, and reasonably Rigidity Matching makes suspending apparatus total energy produce best effectiveness in vibration suppression.
By the description to the structure of shock attenuation unit of the present invention and principle of work above; person of ordinary skill in the field should be appreciated that; the present invention is not limited to the above-mentioned specific embodiment, adopts the improvement of techniques well known and substitute all to drop among protection scope of the present invention on basis of the present invention.
Claims (5)
1. four-cylinder diesel engine engine suspension device, comprise: lower vibration damping rubber cushion (1), upper vibration damping rubber cushion (2), described lower vibration damping rubber cushion (1) is positioned at bottom, upper vibration damping rubber cushion (2) is positioned at top, lower vibration damping rubber cushion (1) is provided with outer chamfering (7) with the junction of upper vibration damping rubber cushion (2), upper vibration damping rubber cushion (2) is upper is provided with interior chamfering (8) with outer chamfering (7) corresponding position, it is characterized in that: described lower vibration damping rubber cushion (1) is convex frustum cone structure, Wei great footpath, lower end round platform (14), upper end is projection (9), its center is provided with lower through-hole (13), two end face edge places of large footpath round platform (14) are respectively provided with two rank boss, the upper through hole (12) that upper vibration damping rubber cushion (2) center after combination arranges is corresponding with the lower through-hole (13) on lower vibration damping rubber cushion (1), form through hole, the in-built connecting screw rod (3) that is equipped with of through hole, connecting screw rod in through hole (3) outer cover has screw rod axle sleeve (4), connecting screw rod (3) runs through through hole completely, screw rod axle sleeve (4) runs through lower through-hole (13), there is certain distance on screw rod axle sleeve (4) top apart from the upper surface of upper vibration damping rubber cushion (2), this is apart from forming space (11).
2. a kind of four-cylinder diesel engine engine suspension device according to claim 1, it is characterized in that: two rank boss of large (14) two end face settings of footpath round platform are one-level boss (5) and secondary boss (6), and secondary boss (6) is positioned at the outside of one-level boss (5).
3. a kind of four-cylinder diesel engine engine suspension device according to claim 1, it is characterized in that: in lower vibration damping rubber cushion (1), the lower through-hole (13) of large footpath round platform (14) bottom locates to be provided with screw head groove (10), the diameter of upper vibration damping rubber cushion (2) is 0.6～0.7 times of large footpath round platform (14) diameter, and the thickness of upper vibration damping rubber cushion (2) is 0.35～0.4 times of large footpath round platform (14) diameter.
4. a kind of four-cylinder diesel engine engine suspension device according to claim 1, it is characterized in that: the thickness of large footpath round platform (14) is itself diameter 0.2～0.35 times, the integral thickness of lower vibration damping rubber cushion (1) is 0.42～0.67 times of large footpath round platform (14) diameter, the diameter of boss (9) is 0.43～0.46 times of large footpath round platform (14) diameter, and the diameter of upper through hole (12) and lower through-hole (13) is 0.14～0.17 times of large footpath round platform (14) diameter.
5. a kind of four-cylinder diesel engine engine suspension device according to claim 1, it is characterized in that: outer chamfering (7) is identical with interior chamfering (8) chamfer angle, value 4～7mm, the thickness of screw rod axle sleeve (4) is 1mm, and length is 0.688～0.756 times of large footpath round platform (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672337.2A CN104163096A (en) | 2013-12-12 | 2013-12-12 | Engine suspension device for four-cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672337.2A CN104163096A (en) | 2013-12-12 | 2013-12-12 | Engine suspension device for four-cylinder diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN104163096A true CN104163096A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310672337.2A Pending CN104163096A (en) | 2013-12-12 | 2013-12-12 | Engine suspension device for four-cylinder diesel engine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002174298A (en) * | 2000-12-05 | 2002-06-21 | Maruyasu Industries Co Ltd | Engine mount |
| KR20040053828A (en) * | 2002-12-16 | 2004-06-25 | 기아자동차주식회사 | Engine mounting member |
| CN101074715A (en) * | 2006-05-17 | 2007-11-21 | 株式会社Dtr | Bush type hydraulic rubber mount and method of making same |
| CN201517580U (en) * | 2009-10-26 | 2010-06-30 | 吉林大学 | Engine rubber suspension |
| CN104163095A (en) * | 2013-12-11 | 2014-11-26 | 柳州市兴拓工贸有限责任公司 | Mounting method of engine suspension device for four-cylinder diesel engine |
-
2013
- 2013-12-12 CN CN201310672337.2A patent/CN104163096A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002174298A (en) * | 2000-12-05 | 2002-06-21 | Maruyasu Industries Co Ltd | Engine mount |
| KR20040053828A (en) * | 2002-12-16 | 2004-06-25 | 기아자동차주식회사 | Engine mounting member |
| CN101074715A (en) * | 2006-05-17 | 2007-11-21 | 株式会社Dtr | Bush type hydraulic rubber mount and method of making same |
| CN201517580U (en) * | 2009-10-26 | 2010-06-30 | 吉林大学 | Engine rubber suspension |
| CN104163095A (en) * | 2013-12-11 | 2014-11-26 | 柳州市兴拓工贸有限责任公司 | Mounting method of engine suspension device for four-cylinder diesel engine |
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Application publication date: 20141126 |