CN108953485A - Damper unit for block testing stand - Google Patents
Damper unit for block testing stand Download PDFInfo
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- CN108953485A CN108953485A CN201810677950.6A CN201810677950A CN108953485A CN 108953485 A CN108953485 A CN 108953485A CN 201810677950 A CN201810677950 A CN 201810677950A CN 108953485 A CN108953485 A CN 108953485A
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- China
- Prior art keywords
- accommodating chamber
- spring
- guide post
- springs
- testing stand
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of damper units for block testing stand, including fixing seat, damping assembly and movable seat, fixing seat has the accommodating chamber of open end towards setting on the end face of the movable seat, stud is provided in accommodating chamber, via hole is offered on movable seat, stud is threadedly coupled after passing through the via hole with adjusting nut, one end of damping assembly and the inner wall of accommodating chamber lean, the other end of damping assembly leans with movable seat, and movable seat is movably disposed the inside of accommodating chamber along the length direction of stud；Adjusting nut rotation, to adjust the vibration damping stiffness equivalent of damping assembly.Based on above structure, so that the vibration damping rigidity of damper unit is adjustable, testing stand caused by engine luggine is avoided to damage, the resonance speed of testing stand can be transferred to other than engine operation revolving speed, testing stand and engine is avoided to generate resonance, the service life of guarantee test platform reduces the maintenance cost of testing stand.
Description
Technical field
The present invention relates to engine test platform technology field more particularly to a kind of vibration damping lists for block testing stand
Member.
Background technique
Core component of the engine as automobile plays vital effect in terms of guaranteeing.Engine
The test of various aspects must be carried out before factory, during the test, it is necessary to vibration isolation be carried out to engine, to guarantee engine complete machine
Vibration severity is no more than limit value, also to reduce the vibration transmissibility that engine is transmitted on test seat stand as far as possible, to protect examination
Test seat stand and equipment damage.
But vibration-absorptive pad of engine in the prior art is excessively single, each type is needed to be arranged in contrast
The cushion blocking answered, so that engine test increased costs, meanwhile, the low efficiency that replacement resilient cushion makes test is changed frequently.
In addition, the rigidity of engine vibration-damping unit in the prior art is higher, can not be kept away in engine machine working speed
Open resonance speed, thus caused by engine luggine transfinite, engine component damage and the damage etc. of test seat stand equipment it is existing
As commonplace.
Summary of the invention
The purpose of the present invention is to solve at least one above-mentioned problem, which is by the following technical programs
It realizes.
The present invention provides a kind of damper unit for block testing stand, including fixing seat, damping assembly and movable
Seat, the fixing seat have the accommodating chamber of open end towards setting on the end face of the movable seat, are provided in the accommodating chamber
Stud, the length direction of the stud is consistent with the depth direction of the accommodating chamber, offers via hole on the movable seat, described
Stud is threadedly coupled after passing through the via hole with adjusting nut, and one end of the damping assembly and the inner wall of the accommodating chamber offset
It leans on, the other end of the damping assembly leans with the movable seat, and the movable seat is along the length direction of the stud with can
The inside of the accommodating chamber is arranged in mobile mode；
The adjusting nut can be rotated relative to the stud, so that between the movable seat and the bottom surface of the accommodating chamber
Away from adjustment, to adjust the vibration damping rigidity of the damping assembly.
Preferably, the damping assembly includes spaced main spring, the first groups of springs, second spring group, third bullet
Spring group and the 4th groups of springs；
The main spring, first groups of springs, the second spring group, the third groups of springs and the 4th spring
Length, pitch and the rigidity of group are all different.
Preferably, the main spring is sleeved on the stud；First groups of springs includes multiple first springs, each institute
The circumferential direction that the first spring is stated around the stud is uniformly distributed；The second spring group includes multiple second springs, each second spring
Circumferential direction around the stud is uniformly distributed；The third groups of springs includes multiple third springs, and each third spring is around the stud
Circumferential direction it is uniformly distributed；4th groups of springs includes multiple 4th springs, and each 4th spring is uniformly distributed around the circumferential direction of the stud；
First spring, the second spring, the third spring and the 4th spring intervals setting.
Preferably, the bottom surface of the accommodating chamber be arranged at intervals with the first consistent guide post of first number of springs, with
The second consistent guide post of the second spring quantity, the third guide post consistent with the third number of springs and with described
The 4th consistent guide post of four number of springs, the movable seat correspond to first guide post, second guide post, the third and lead
The position of column and the 4th guide post offers the first guide hole, the second guide hole, third guide hole and the 4th guide hole respectively, and described first
Guide post, two guide post, the third guide post and the 4th guide post are respectively through first guide hole, second guide hole, institute
It states third guide hole and the 4th guide hole is pierced by；
First spring pocket is mounted on corresponding first guide post, and the second spring is sleeved on corresponding described the
On two guide posts, the third spring pocket is mounted on the corresponding third guide post, and the 4th spring pocket is mounted in corresponding described
On 4th guide post.
Preferably, the outer peripheral surface of first guide post is enclosed with the first rubber layer, is arranged on the hole wall of first guide hole
There is the second rubber layer, first rubber layer is bonded with second rubber layer, so that the inner sealing of the accommodating chamber；
The outer peripheral surface of second guide post is enclosed with third rubber layer, is provided with the 4th rubber on the hole wall of second guide hole
Glue-line, the third rubber layer is bonded with the 4th rubber layer, so that the inner sealing of the accommodating chamber；
The outer peripheral surface of the third guide post is enclosed with the 5th rubber layer, is provided with the 6th rubber on the hole wall of the third guide hole
Glue-line, the 5th rubber layer is bonded with the 6th rubber layer, so that the inner sealing of the accommodating chamber；
The outer peripheral surface of 4th guide post is enclosed with the 7th rubber layer, is provided with the 8th rubber on the hole wall of the 4th guide hole
Glue-line, the 7th rubber layer is bonded with the 8th rubber layer, so that the inner sealing of the accommodating chamber.
Preferably, the movable seat includes connecting plate, support plate and movable plate, the connecting plate by the support plate with
The movable plate connection, the connecting plate are connect with engine, and the via hole is provided on the movable plate；
The movable plate towards being provided with annular sidewall on the end face of the accommodating chamber, the outer peripheral surface of the annular sidewall with
The edge of the movable plate is concordant, and the exterior contour of the annular sidewall is adapted with the side wall profile of the accommodating chamber.
Preferably, the outer peripheral surface of the annular sidewall is provided with the first wear-resisting glue-line, and the side wall of the accommodating chamber is provided with
Second wear-resisting glue-line, first wear-resisting glue-line are bonded the inner sealing so that the accommodating chamber with second wear-resisting glue-line.
Preferably, third is provided on the outer peripheral surface of ontology of the stud inside the via hole and the accommodating chamber
Wear-resisting glue-line, the hole wall of the via hole are provided with the 4th wear-resisting glue-line, the third wear-resisting glue-line and the 4th wear-resisting glue-line
It is bonded the inner sealing so that the accommodating chamber.
Preferably, the fixing seat includes bottom plate and the boss that is arranged on bottom plate, the bottom plate and block testing stand
Affixed, the inside of the boss is arranged in the accommodating chamber, and end of the boss far from the bottom plate is arranged in the open end
On face；Reinforcing rib is provided between the boss and the bottom plate.
Preferably, the quantity of the reinforcing rib is multiple, and each reinforcing rib is set at equal intervals around the periphery wall of the boss
It sets.
Damper unit provided by the present invention for block testing stand, including fixing seat, damping assembly and movable seat,
The fixing seat has the accommodating chamber of open end towards setting on the end face of the movable seat, is provided with spiral shell in the accommodating chamber
Column, the length direction of the stud is consistent with the depth direction of the accommodating chamber, and via hole, the spiral shell are offered on the movable seat
Column is threadedly coupled after passing through the via hole with adjusting nut, and one end of the damping assembly and the inner wall of the accommodating chamber offset
Lean on, the other end of the damping assembly leans with the movable seat, the movable seat along the stud length direction, with can
The inside of the accommodating chamber is arranged in mobile mode；The adjusting nut is rotated relative to the stud, so that the movable seat
It is adjusted with the spacing of the bottom surface of the accommodating chamber, to adjust the vibration damping stiffness equivalent of the damping assembly.In above structure, Gu
Reservation is affixed with block testing stand, and movable seat and engine are affixed, improves card adjusting nut according to the different model of engine,
So that the vibration damping rigidity of damping assembly meets the model of current test engine, start engine, when engine operation generates vibration
Dynamic, since movable seat and engine are rigid connection, movable seat vibrates jointly with engine, and stud carries out the transverse direction of movable seat
Limit so that the oscillation crosswise of engine is cancelled, due to movable seat can along stud length direction to close or remote
Bottom surface direction movement from accommodating chamber, when movable seat generates extensional vibration, subtracts due to being provided with damping assembly in accommodating chamber
Vibration unit can effectively offset the extensional vibration that movable seat generates by elastic deformation, so that the extensional vibration quilt of engine
It offsets.
Above-mentioned damper unit ensure that engine so that the vibration damping rigidity of damper unit is adjustable by adjusting adjusting nut
The Low rigidity requirement of low working speed, is conducive to the damage for mitigating low frequency significantly seat stand equipment, also ensures engine height
The high rigidity demand in fast area, high speed rotation engines vibrational excitation is big, and high vibration damping rigidity is conducive to inhibit the vibration of engine.
Meanwhile the resonance speed of block testing stand can be transferred to other than engine operation revolving speed by adjusting adjusting nut, from
And effectively avoid block testing stand and engine from generating resonance, and then guarantee the service life of block testing stand, reduce hair
The maintenance cost of motivation testing stand.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of damper unit provided by the present invention；
Fig. 2 is the structural schematic diagram of damping assembly in damper unit shown in Fig. 1；
Fig. 3 is the structural schematic diagram of the partial sectional view of damper unit shown in Fig. 1；
Fig. 4 is the stiffness curve (vertically to) of damping assembly in damper unit shown in Fig. 1；
Fig. 5 is the resonance speed comparison of General Purpose Rubber damping element and the damper unit of the present invention provided.
Appended drawing reference
1 is movable seat, and 11 be connecting plate, and 12 be support plate, and 13 movable plates, 131 be annular sidewall, and 1311 is wear-resisting for first
Glue-line, 14 be the 6th rubber layer；
2 be fixing seat, and 21 be boss, and 22 be reinforcing rib, and 221 be stud, and 222 be adjusting nut, and 223 be the first guide post,
224 be the second guide post, and 225 be third guide post, and 2251 be the 5th rubber layer, and 226 be the 4th guide post, and 23 be bottom plate, and 24 be to accommodate
Chamber, 241 be the second wear-resisting glue-line；
3 be damping assembly, and 31 be main spring, and 32 be the first spring, and 33 be second spring, and 34 be third spring, and 35 be the
Four springs.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
Fig. 1 and Fig. 3 are please referred to, Fig. 1 is the structural schematic diagram of damper unit provided by the present invention；Fig. 2 is to subtract shown in Fig. 1
The structural schematic diagram of damping assembly in vibration unit；Fig. 3 is the structural schematic diagram of the partial sectional view of damper unit shown in Fig. 1.
In a specific embodiment, the damper unit provided by the present invention for block testing stand, including it is solid
Reservation 2, damping assembly 3 and movable seat 1, the fixing seat 2 have the appearance of open end towards setting on the end face of the movable seat 1
It receives chamber 24, stud 221, the depth of the length direction of the stud 221 and the accommodating chamber 24 is provided in the accommodating chamber 24
Direction is consistent, and via hole is offered on the movable seat 1, and the stud 221 connects after passing through the via hole with 222 screw thread of adjusting nut
Connect, one end of the damping assembly 3 and the inner wall of the accommodating chamber 24 lean, the other end of the damping assembly 3 with it is described
Movable seat 1 leans, and the movable seat 1 is movably disposed the receiving along the length direction of the stud 221
The inside of chamber 24；The adjusting nut 222 can be rotated relative to the stud 221, so that the movable seat 1 and the accommodating chamber
The spacing of 24 bottom surface can adjust, to adjust the vibration damping rigidity of the damping assembly 3.In above structure, fixing seat and hair
Motivation testing stand is affixed, and movable seat and engine are affixed, improves card adjusting nut 222 according to the different model of engine, so that
The vibration damping rigidity of damping assembly 3 meets the model of current test engine, starts engine, and when engine operation generates vibration,
Since movable seat 1 and engine are rigid connection, movable seat 1 vibrates jointly with engine, transverse direction of the stud 221 to movable seat 1
Limited so that the oscillation crosswise of engine is cancelled, due to movable seat 1 can along stud 221 length direction to leaning on
Close or bottom surface direction far from accommodating chamber 24 moves, and damping assembly 3 is provided in accommodating chamber 24, thus works as movable seat 1
When generating extensional vibration, damper unit can effectively offset the extensional vibration that movable seat 1 generates by elastic deformation, so that
The extensional vibration of engine is cancelled.
Above-mentioned damper unit ensure that hair so that the vibration damping rigidity of damper unit is adjustable by adjusting adjusting nut 222
The Low rigidity requirement of the low working speed of motivation, is conducive to the damage for mitigating low frequency significantly seat stand equipment, also ensures and start
The high rigidity demand of machine high velocity, high speed rotation engines vibrational excitation is big, and high vibration damping rigidity is conducive to inhibit engine
Vibration.Meanwhile the resonance speed of block testing stand can be transferred to engine operation revolving speed by adjusting adjusting nut 222
In addition, so that block testing stand and engine effectively be avoided to generate resonance, and then guarantee the service life of block testing stand,
Reduce the maintenance cost of block testing stand.
It is further understood that, the damping assembly 3 includes spaced main spring 31, the first groups of springs, the second bullet
Spring group, third groups of springs and the 4th groups of springs；The main spring 31, first groups of springs, the second spring group, described
Length, pitch and the rigidity of three groups of springs and the 4th groups of springs are all different.Above-mentioned damping assembly 3 by multiple springs and
Groups of springs is formed, the characteristics of using the length, pitch and rigidity of spring and groups of springs to be all different, so that under different distortion amount
The difference for participating in the spring number of carrying, forms the unique variation rigidity characteristic of damping element system, this, which both ensure that, starts
The Low rigidity requirement of the low working speed of machine, is conducive to the damage for mitigating low frequency significantly seat stand equipment, also ensures engine
The high rigidity demand of high velocity, high speed rotation engines vibrational excitation is big, and high spring rate is conducive to inhibit the vibration of engine
It is dynamic.
It is further understood that, the main spring 31 is sleeved on the stud 221；First groups of springs includes multiple
First spring 32, each first spring 32 are uniformly distributed around the circumferential direction of the stud 221；The second spring group includes multiple second
Spring 33, each second spring 33 are uniformly distributed around the circumferential direction of the stud 221；The third groups of springs includes multiple third springs
34, each third spring 34 is uniformly distributed around the circumferential direction of the stud 221；4th groups of springs includes multiple 4th springs 35,
Each 4th spring 35 is uniformly distributed around the circumferential direction of the stud 221；First spring 32, the second spring 33, described
Three springs 34 and the setting of the 4th spring 35 interval.Above-mentioned main spring 31 is sleeved on stud 221, and the setting of stud 221 is being held
Receive the center of chamber 24, each first spring 32 is uniformly arranged around main spring 31, and each second spring 33 is laid around main spring 31
It sets, each third spring 34 is uniformly arranged around main spring 31, and each 4th spring 35 is uniformly arranged around main spring 31, wherein above-mentioned
One spring 32, second spring 33, third spring 34 and the 4th spring 35 are the structure of transpostion interval setting, the structure arranged in a crossed manner
It should be understood as the space structure formed between the spring of two neighboring not model disposed in parallel, should not be understood as two springs
The structure of intersection.With this configuration, when any spring acts on movable seat 1, it can be realized and support is formed to movable seat 1
Structure stress is uniform, on the one hand can guarantee the stability of movable seat 1, on the other hand can be realized uniformly subtracting to movable seat 1
Vibration, so as to effectively avoid unbalance loading from causing to vibrate superposition phenomenon, so that the effect of vibration damping keeps best.
Further, the bottom surface of the accommodating chamber 24 is arranged at intervals with first consistent with 32 quantity of the first spring
It is guide post 223, second guide post 224 consistent with 33 quantity of second spring, consistent with 34 quantity of third spring
Third guide post 225 and fourth guide post 226 consistent with 35 quantity of the 4th spring, the movable seat 1 corresponding described first
Guide post 223, second guide post 224, the third guide post 225 and the 4th guide post 226 position offer first respectively
Guide hole, the second guide hole, third guide hole and the 4th guide hole, first guide post 223, two guide post, 225 and of third guide post
4th guide post 226 is worn through first guide hole, second guide hole, the third guide hole and the 4th guide hole respectively
Out；First spring 32 is sleeved on first guide post 223, and the second spring 33 is sleeved on second guide post 224
On, the third spring 34 is sleeved on the third guide post 225, and the 4th spring 35 is sleeved on the 4th guide post 226
On.
By using guide pillar structure, enhance the guiding performance of each spring, improves the service life of spring, it is another
Aspect can be realized the multiple spot guiding to movable seat 1, to effectively increase the effect of vibration damping, ensure that the low work of engine turns
The Low rigidity requirement of speed, is conducive to the damage for mitigating low frequency significantly seat stand equipment, also ensures the height in high engine speeds area
Rigidity requirement, high speed rotation engines vibrational excitation is big, and high vibration damping rigidity is conducive to inhibit the vibration of engine.
It is to be appreciated that stud 221, the first guide post 223, the second guide post 224, third guide post 225 and the 4th guide post 226
For parallel interval setting structure, so that the normal use of movable seat 1 be effectively ensured, and then the effect of vibration damping is improved.
Further, the outer peripheral surface of first guide post 223 is enclosed with the first rubber layer, on the hole wall of first guide hole
It is provided with the second rubber layer, first rubber layer is bonded with second rubber layer, so that the inside of the accommodating chamber 24 is close
Envelope；The outer peripheral surface of second guide post 224 is enclosed with third rubber layer, is provided with the 4th rubber on the hole wall of second guide hole
Layer, the third rubber layer is bonded with the 4th rubber layer, so that the inner sealing of the accommodating chamber 24；The third guide post
225 outer peripheral surface is enclosed with the 5th rubber layer 2251, is provided with the 6th rubber layer 14 on the hole wall of the third guide hole, and described
Five rubber layers 2251 are bonded with the 6th rubber layer 14, so that the inner sealing of the accommodating chamber 24；4th guide post 226
Outer peripheral surface be enclosed with the 7th rubber layer, the 8th rubber layer, the 7th rubber layer are provided on the hole wall of the 4th guide hole
It is bonded with the 8th rubber layer, so that the inner sealing of the accommodating chamber 24.
Above by rubber layer is throughout arranged, it can effectively realize and accommodating chamber 24 is isolated from the outside, to avoid outer
Influence of portion's environmental factor to internal each component reduces dimension so that the service life of each component in accommodating chamber 24 is extended
The cost repaired and replaced；Meanwhile by the way that each rubber layer is arranged, can be avoided the rigid contact of junction, thus reduce component it
Between abrasion reduce the cost of maintenance and replacement so that the service life of component is extended, when there is rubber layer damage,
The noise that friction between metal generates is readily operated personal identification, then can quickly find directly more to renew vibration damping member
Part avoids the damage of other link components of engine；In addition, can effectively realize lateral vibration by the way that each rubber layer is arranged
Vibration damping, to further increase the effect of vibration damping；Furthermore by each spring is sealed can be avoided the spring of deformation with
The direct contact of operator, the safety of effective protection operator.
It should be pointed out that above-mentioned each rubber layer is fixed by way of vulcanization with setting position, so as to have
Effect improves the intensity of junction, and then improves the service life used.
Specifically understand, the movable seat 1 includes connecting plate 11, support plate 12 and movable plate 13, the connecting plate 11
It is connect by the support plate 12 with the movable plate 13, the connecting plate 11 is connect with engine, and the via hole is provided with institute
It states on movable plate 13；The movable plate 13 is towards being provided with annular sidewall 131, the annular side on the end face of the accommodating chamber 24
The outer peripheral surface of wall 131 is concordant with the edge of the movable plate 13, the exterior contour of the annular sidewall 131 and the accommodating chamber 24
Side wall profile be adapted.Annular sidewall 131 is plugged on inside accommodating chamber 24, is being accommodated so that damping assembly 3 is now effectively sealed
In chamber 24, it can effectively realize and accommodating chamber 24 is isolated from the outside, to avoid external environmental factor to the shadow of internal each component
It rings, so that the service life of each component in accommodating chamber 24 is extended, reduces the cost of maintenance and replacement；Meanwhile pass through by
Damping assembly 3, which is sealed, can be avoided the spring of deformation and directly contacting for operator, the peace of effective protection operator
Entirely.
Specifically, the outer peripheral surface of the annular sidewall 131 is provided with the first wear-resisting glue-line 1311, the side of the accommodating chamber 24
Wall is provided with the second wear-resisting glue-line 241, and first wear-resisting glue-line 1311 is bonded with second wear-resisting glue-line 241 so that described
The inner sealing of accommodating chamber 24.By the way that wear-resisting glue-line is arranged, it can effectively realize and accommodating chamber 24 is isolated from the outside, to avoid
Influence of the external environmental factor to internal each component reduces so that the service life of each component in accommodating chamber 24 is extended
The cost of maintenance and replacement；Meanwhile by the way that wear-resisting glue-line is arranged, the rigid contact of junction can be avoided, to reduce component
Between abrasion reduce the cost of maintenance and replacement so that the service life of component is extended, when there is wear-resisting glue-line damage
When, the noise that the friction between metal generates is readily operated personal identification, then can quickly find directly more to renew and subtracts
Vibration element avoids the damage of other link components of engine；In addition, can effectively be realized lateral by setting wear-resisting glue-line
The vibration damping of vibration, to further increase the effect of vibration damping.
It should be pointed out that above-mentioned first wear-resisting glue-line 1311 and the second wear-resisting glue-line 241 by way of vulcanization with set
Seated position is fixed, and so as to effectively improve the intensity of junction, and then improves the service life used.
Specifically, the stud 221 is arranged on the outer peripheral surface of the via hole and the ontology inside the accommodating chamber 24
There is a third wear-resisting glue-line, the hole wall of the via hole is provided with the 4th wear-resisting glue-line, the third wear-resisting glue-line and the described 4th resistance to
It grinds glue-line and is bonded the inner sealing so that the accommodating chamber 24.By the way that wear-resisting glue-line is arranged, the rigidity that can be avoided junction is connect
Touching, so that the service life of component is extended, reduces the cost of maintenance and replacement to reduce the abrasion between component, when
When there is wear-resisting glue-line damage, the noise that the friction between metal generates is readily operated personal identification, then can be quick
It was found that directly more renewing the damage that damping element avoids other link components of engine；Meanwhile by the way that wear-resisting glue-line, energy is arranged
Enough vibration dampings for effectively realizing lateral vibration, to further increase the effect of vibration damping；In addition, by setting wear-resisting glue-line, energy
Accommodating chamber 24 is isolated from the outside by enough effectively realize, so that influence of the external environmental factor to internal each component is avoided, so that holding
The service life of each component in chamber 24 received is extended, and the cost of maintenance and replacement is reduced.
It should be pointed out that above-mentioned third wear-resisting glue-line and the 4th wear-resisting glue-line by way of vulcanization with setting position into
Row is fixed, and so as to effectively improve the intensity of junction, and then improves the service life used.
Specifically, the fixing seat 2 includes bottom plate 23 and the boss 21 that is arranged on bottom plate 23, the bottom plate 23 with start
Machine testing stand is affixed, and the inside of the boss 21 is arranged in the accommodating chamber 24, and the open end setting is remote in the boss 21
On end face from the bottom plate 23；Reinforcing rib 22 is provided between the boss 21 and the bottom plate 23.Pass through above structure, energy
The intensity for enough effectively improving fixing seat 2 avoids use for a long time that junction stress is caused to concentrate the case where damaging equipment generation.
Specifically, the quantity of the reinforcing rib 22 is multiple, periphery wall etc. of each reinforcing rib 22 around the boss 21
Interval setting.By above structure, so that the bonding strength between boss 21 and bottom plate 23 further increases, avoid making for a long time
With generation the case where causing junction stress to concentrate damage equipment, the service life of component is effectively extended, and then reduces maintenance
With the cost of replacement.
Referring to Figure of description 4, Fig. 4 is the stiffness curve (vertically to) of damping assembly 3 in damper unit shown in Fig. 1.
Specifically, the damping assembly 3 in the present invention is combined type spring assembly, and engine pair may be implemented with this configuration
The desirability of damper unit belongs to the performance with Low rigidity spring characteristic curve in certain deformation range, this can be with
Move to the resonant frequency of engine resonance support system other than working speed.The intrinsic frequency of common Low rigidity spring is all
It can control within 5Hz, calculated by engine minimum operating speed 600r/min, (1 order swashs engine minimum excited frequency
Vibration frequency) in 10Hz, commonly meet the intrinsic frequency of the rubber software damping element system of reliability requirement generally 30Hz with
On, it is the minimum steady operation excited frequency that can not avoid engine machine.When engine receives high hammer vibration energy deformation, there is tool
There is the characteristic curve of high rigidity spring, ensure that the constraint solubilization of engine, is able to bear horizontal and vertical bigger cut
Shear deformation.
Referring to Figure of description 5, Fig. 5 is the resonance of General Purpose Rubber damping element and the damper unit of the present invention provided
Revolving speed comparison.
Cluster spring damping element has the advantage for avoiding slow-speed of revolution resonance, it may have the effect for inhibiting resonant amplitude, when
When horizontal and vertical rigidity and damping can not inhibit engine luggine, common spring component can be changed to complex spring component
(a kind of by rubber material vulcanization to the complex spring on spring).
It should be understood that although multiple element, portion can be described using term first, second, third, etc. in the text
Part, region, layer and/or section still these component, assembly units, region, layer and/or are limited by these terms than Duan Buying.
These terms can only be used to distinguish a component, assembly unit, region, layer or section with another region, layer or section.Unless
Context is it is manifestly intended that when otherwise the term and other numerical terms of such as " first ", " second " etc use in the text
Sequence or order is not implied that.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention answers the protection model with claim
Subject to enclosing.
Claims (10)
1. a kind of damper unit for block testing stand, including fixing seat, damping assembly and movable seat, which is characterized in that
The fixing seat has the accommodating chamber of open end towards setting on the end face of the movable seat, is provided with spiral shell in the accommodating chamber
Column, the length direction of the stud is consistent with the depth direction of the accommodating chamber, and via hole, the spiral shell are offered on the movable seat
Column is threadedly coupled after passing through the via hole with adjusting nut, and one end of the damping assembly and the inner wall of the accommodating chamber offset
It leans on, the other end of the damping assembly leans with the movable seat, and the movable seat is along the length direction of the stud with can
The inside of the accommodating chamber is arranged in mobile mode；
The adjusting nut can be rotated relative to the stud, so that the spacing tune of the bottom surface of the movable seat and the accommodating chamber
It is whole, to adjust the vibration damping rigidity of the damping assembly.
2. the damper unit according to claim 1 for block testing stand, which is characterized in that the damping assembly packet
Include spaced main spring, the first groups of springs, second spring group, third groups of springs and the 4th groups of springs；
The main spring, first groups of springs, the second spring group, the third groups of springs and the 4th groups of springs
Length, pitch and rigidity are all different.
3. the damper unit according to claim 2 for block testing stand, which is characterized in that the main spring suit
On the stud；First groups of springs includes multiple first springs, and each first spring is around the circumferential equal of the stud
Cloth；The second spring group includes multiple second springs, and each second spring is uniformly distributed around the circumferential direction of the stud；The third
Groups of springs includes multiple third springs, and each third spring is uniformly distributed around the circumferential direction of the stud；4th groups of springs includes
Multiple 4th springs, each 4th spring are uniformly distributed around the circumferential direction of the stud；
First spring, the second spring, the third spring and the 4th spring intervals setting.
4. the damper unit according to claim 3 for block testing stand, which is characterized in that the bottom of the accommodating chamber
Face interval is provided with first guide post consistent with first number of springs, consistent with the second spring quantity second
Guide post, the third guide post consistent with the third number of springs and fourth guide post consistent with the 4th number of springs,
The movable seat corresponds to the position difference of first guide post, second guide post, the third guide post and the 4th guide post
The first guide hole, the second guide hole, third guide hole and the 4th guide hole are offered, first guide post, two guide post, the third are led
Column and the 4th guide post are worn through first guide hole, second guide hole, the third guide hole and the 4th guide hole respectively
Out；
First spring pocket is mounted on corresponding first guide post, and the second spring is sleeved on corresponding described second and leads
On column, the third spring pocket is mounted on the corresponding third guide post, and the 4th spring pocket is mounted in the corresponding described 4th
On guide post.
5. the damper unit according to claim 4 for block testing stand, which is characterized in that first guide post
Outer peripheral surface is enclosed with the first rubber layer, is provided with the second rubber layer on the hole wall of first guide hole, first rubber layer with
The second rubber layer fitting, so that the inner sealing of the accommodating chamber；
The outer peripheral surface of second guide post is enclosed with third rubber layer, is provided with the 4th rubber on the hole wall of second guide hole
Layer, the third rubber layer is bonded with the 4th rubber layer, so that the inner sealing of the accommodating chamber；
The outer peripheral surface of the third guide post is enclosed with the 5th rubber layer, is provided with the 6th rubber on the hole wall of the third guide hole
Layer, the 5th rubber layer is bonded with the 6th rubber layer, so that the inner sealing of the accommodating chamber；
The outer peripheral surface of 4th guide post is enclosed with the 7th rubber layer, is provided with the 8th rubber on the hole wall of the 4th guide hole
Layer, the 7th rubber layer is bonded with the 8th rubber layer, so that the inner sealing of the accommodating chamber.
6. the damper unit according to claim 1 for block testing stand, which is characterized in that the movable seat includes
Connecting plate, support plate and movable plate, the connecting plate are connect by the support plate with the movable plate, the connecting plate and hair
Motivation connection, the via hole are provided on the movable plate；
The movable plate towards being provided with annular sidewall on the end face of the accommodating chamber, the outer peripheral surface of the annular sidewall with it is described
The edge of movable plate is concordant, and the exterior contour of the annular sidewall is adapted with the side wall profile of the accommodating chamber.
7. the damper unit according to claim 6 for block testing stand, which is characterized in that the annular sidewall
Outer peripheral surface is provided with the first wear-resisting glue-line, and the side wall of the accommodating chamber is provided with the second wear-resisting glue-line, first wear-resisting glue-line
The inner sealing so that accommodating chamber is bonded with second wear-resisting glue-line.
8. the damper unit according to claim 1 for block testing stand, which is characterized in that the stud is between institute
It states and is provided with third wear-resisting glue-line on the outer peripheral surface of the ontology inside via hole and the accommodating chamber, the hole wall of the via hole is provided with
4th wear-resisting glue-line, the third wear-resisting glue-line are bonded the inner sealing so that the accommodating chamber with the 4th wear-resisting glue-line.
9. the damper unit according to claim 1 for block testing stand, which is characterized in that the fixing seat includes
Bottom plate and the boss being arranged on bottom plate, the bottom plate and block testing stand are affixed, and the accommodating chamber is arranged in the boss
Inside, the open end is arranged on end face of the boss far from the bottom plate；It is set between the boss and the bottom plate
It is equipped with reinforcing rib.
10. the damper unit according to claim 9 for block testing stand, which is characterized in that the reinforcing rib
Quantity be it is multiple, each reinforcing rib is arranged at equal intervals around the periphery wall of the boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810677950.6A CN108953485A (en) | 2018-06-27 | 2018-06-27 | Damper unit for block testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810677950.6A CN108953485A (en) | 2018-06-27 | 2018-06-27 | Damper unit for block testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108953485A true CN108953485A (en) | 2018-12-07 |
Family
ID=64487113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810677950.6A Pending CN108953485A (en) | 2018-06-27 | 2018-06-27 | Damper unit for block testing stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953485A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134042A1 (en) * | 2018-12-27 | 2020-07-02 | 广东省智能制造研究所 | Apparatus and method for testing accelerated life of high-speed electrospindle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1355799A1 (en) * | 1986-01-03 | 1987-11-30 | Коммунарский горно-металлургический институт | Shock absorber |
| CN203488615U (en) * | 2013-08-30 | 2014-03-19 | 安徽金科橡塑制品有限公司 | Spring rubber shock absorber |
| CN103727159A (en) * | 2012-10-16 | 2014-04-16 | 义乌市黑白矿山机械有限公司 | Resonance-resisting multi-step spring damping device |
| CN207161326U (en) * | 2017-09-18 | 2018-03-30 | 河北机电职业技术学院 | A kind of screw compressor with shock-absorbing function |
-
2018
- 2018-06-27 CN CN201810677950.6A patent/CN108953485A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1355799A1 (en) * | 1986-01-03 | 1987-11-30 | Коммунарский горно-металлургический институт | Shock absorber |
| CN103727159A (en) * | 2012-10-16 | 2014-04-16 | 义乌市黑白矿山机械有限公司 | Resonance-resisting multi-step spring damping device |
| CN203488615U (en) * | 2013-08-30 | 2014-03-19 | 安徽金科橡塑制品有限公司 | Spring rubber shock absorber |
| CN207161326U (en) * | 2017-09-18 | 2018-03-30 | 河北机电职业技术学院 | A kind of screw compressor with shock-absorbing function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134042A1 (en) * | 2018-12-27 | 2020-07-02 | 广东省智能制造研究所 | Apparatus and method for testing accelerated life of high-speed electrospindle |
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Application publication date: 20181207 |