CN209372411U - Ball screw assembly, vibration and noise measuring device - Google Patents
Ball screw assembly, vibration and noise measuring device Download PDFInfo
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- CN209372411U CN209372411U CN201822260547.1U CN201822260547U CN209372411U CN 209372411 U CN209372411 U CN 209372411U CN 201822260547 U CN201822260547 U CN 201822260547U CN 209372411 U CN209372411 U CN 209372411U
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- vibration
- ball screw
- screw assembly
- main shaft
- pressure plate
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Abstract
The utility model discloses a kind of ball screw assembly, vibration and noise measuring devices, including rack, axis system, axial loading system, vibration and noise detection system are provided in the rack, axis system includes the driving device of the vertical main shaft being arranged in the rack and the driving main axis, and the bottom end of the main shaft is provided with the ball-screw clamp body of lead screw shaft or feed screw nut to fixed tested ball screw assembly,；Axial loading system includes the pressure plate component connecting with the parts moving linearly in tested ball screw assembly, the displacement sensor to detect pressure plate component moving distance and the axial load bringing device for applying elastic axial load to the pressure plate component；Vibration and noise detection system includes an at least vibrating sensor and an at least sound transducer and signal transmitting and processing system.
Description
Technical field
The utility model relates to mechanical oscillation and noise detection technique field, and in particular to the vibration of automobile ball screw assembly,
Dynamic and noise-measuring system.
Background technique
Ball screw assembly, is the screw-drive mechanism using ball as rolling element, and plurality of ball is between lead screw shaft and silk
It is undertaken between thick stick nut and transmits load.Compared to lead screw pair, ball screw assembly, small, transmission efficiency with frictional resistance
The advantages that high, high transmission accuracy and long service life.
In car transmissions, with the development of electrokinetic technique, ball screw assembly, using more and more extensive, such as
In electric brake, electronic parking and electric clutch system, generally using ball screw assembly, as crucial mechanical transmission component.By
Vibration and noise can be generated in transmission process in ball screw assembly, can reduce the comfort of automobile, therefore in ball screw assembly,
The manufacturing during, need to vibrate it and noise level carry out effective detection and evaluation.In the prior art, ball
The device of the performance detections such as lead screw pair vibration and noise is all made of the workpiece mesa structure for supporting tested ball-screw both ends, inspection
Load is added on feed screw nut when survey, by driving lead screw shaft rotation, keeps feed screw nut for linear motion, such as Chinese patent
CN102346097A, CN101788382A, CN102175450A and CN108195581A.However, due to automobile ball-screw
Secondary structure and applying working condition has biggish difference, ball screw assembly, performance in the prior art with conventional ball lead screw pair
Detection device is dfficult to apply to the detection of automobile ball screw assembly, vibration and noise level.
Utility model content
The purpose of this utility model is to provide a kind of ball screw assembly, vibration and noise measuring devices, to solve above-mentioned ask
Topic.
The technical issues of the utility model is solved can be realized using following technical scheme:
Ball screw assembly, vibration and noise measuring device, including rack, which is characterized in that be provided with main shaft in the rack
System, axial loading system, vibration and noise detection system,
The axis system includes the driving of the vertical main shaft being arranged in the rack and the driving main axis
Device, the bottom end of the main shaft are provided with the ball-screw folder of lead screw shaft or feed screw nut to fixed tested ball screw assembly,
Specifically；
The axial loading system include the pressure plate component being connect with the parts moving linearly in tested ball screw assembly,
To detect the displacement sensor of pressure plate component moving distance and apply elastic axial load to the pressure plate component
Axial load bringing device；
The vibration and noise detection system includes at least one to detect tested ball screw assembly, institute in the detection process
The vibrating sensor of the vibration of sending and at least one noise that is issued in the detection process to detect tested ball screw assembly,
Sound transducer and the vibration and noise signal to acquire, transmit and analyze tested ball screw assembly, signal transmitting and
Processing system.
In a preferred embodiment of the utility model, the vibrating sensor includes that the first, second, third vibration passes
Sensor, first vibrating sensor are arranged on the parts moving linearly in tested ball screw assembly, and second vibration passes
Sensor is arranged in the driving device of the main shaft, and the axial load bringing device is arranged in the third vibrating sensor
On pressure plate component.
In a preferred embodiment of the utility model, the axial load bringing device includes:
Be vertically arranged in the rack it is electronic push away cylinder,
With the electronic spring guide pillar for pushing away cylinder and connecting,
Limit on the loading spring being set on the spring guide pillar, the bottom end of the loading spring and the spring guide pillar
Position Bian Peihe,
The spring spool being set between the spring guide pillar and loading spring, the top end of the loading spring with it is described
Position-limited edge cooperation on spring spool；
The pressure plate component includes the pressure plate connecting with the lifting guide part in the rack and is fixed on described
Contact block on pressure plate.
In a preferred embodiment of the utility model, the ball-screw clamp body includes fixture cylinder, the folder
The top of tool cylinder has the interconnecting piece connecting with the bottom end of the main shaft, and the inner cavity of the fixture cylinder is for tested ball-screw
Pair insertion, the bottom of the fixture cylinder is provided with to be clamped to the ball-screw of the feed screw nut of fixed tested ball screw assembly,
Part.
In a preferred embodiment of the utility model, the interconnecting piece has plane and short conical bore, the main shaft
Bottom end there is plane and the short circular conical surface with the short conical bore cooperation and protrusion.
In a preferred embodiment of the utility model, the driving device includes spindle motor, the spindle motor
Gear of output end connect with the driven gear on the main shaft top by synchronous belt.
In a preferred embodiment of the utility model, the rack includes upper bed-plate and lower bottom base, the main shaft system
System is arranged on the upper bed-plate, is provided with vibration isolation element between the upper bed-plate and lower bottom base.
Due to using technical solution as above, the utility model has the beneficial effects that:
1. complete machine structure is vertical structure, main shaft is vertical spindle, is tested ball screw assembly, and passes through fixture in a vertical manner
Positioned at the lower end of main shaft, this mode can be such that the parts moving linearly of tested ball screw assembly, moves freely through, without
Other Auxiliary supports or fixed constraint are carried out, therefore can reduce the influence that outer bound pair is tested ball screw assembly, vibration, is improved
The detection accuracy of ball screw assembly, vibration.
2. axial loading system applies axial load to tested ball screw assembly, when the electronic push rod for pushing away cylinder makes loading spring
It is compressed to after subscribing load, one end that loading spring is coupled with spring guide pillar is static, and the other end is with spring spool and pressure plate
Axial linear movement is done, the axial load size that tested ball screw assembly, can in this way be subject to is as the displacement of linear motion is in
Linear change.
3. all having vibration isolation element between upper bed-plate and lower bottom base and between pressing plate and upper bed-plate, can reduce down in this way
Vibration transmitting between pedestal and upper bed-plate；Spindle motor bracket is fixed on lower bottom base, and spindle carrier is fixed on upper bed-plate
On, because tested ball screw assembly, is mounted on main shaft by fixture, it can reduce vibration caused by spindle motor in this way to quilt
Survey the influence of ball screw assembly,.
4. main shaft is hydrodynamic and hydrostatic pressure main shaft, the vibration of main shaft can reduce in this way, to reduce spindle vibration to tested
The influence of ball screw assembly, vibration.
5. the short circular conical surface of the short conical bore in the end of the clamp body of ball screw assembly, fixture and spindle nose cooperates, can make
The center of clamp body and main shaft mating surface is overlapped；The big plane in the end of the clamp body of ball screw assembly, fixture and spindle nose it is big
The axis of plane cooperation, the axis and main shaft that can make clamp body is overlapped, and can undertake biggish axial load and power of toppling
Square.
6. the pressure plate guiding device of axial loading system is fixed on upper bed-plate, and pressure plate guiding device with it is upper
There is vibration isolation element between pedestal, can reduce vibration caused by the internal friction of pressure plate guiding device in this way to tested ball wire
The influence of thick stick pair vibration.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model ball screw assembly, vibration and noise detection device.
Fig. 2 is the main shaft and spindle carrier of a kind of embodiment of the utility model ball screw assembly, vibration and noise detection device
Scheme of installation.
Fig. 3 is a kind of spindle motor bracket peace of embodiment of the utility model ball screw assembly, vibration and noise detection device
Fill schematic diagram.
Fig. 4 is that a kind of spindle nose structure of embodiment of the utility model ball screw assembly, vibration and noise detection device is shown
It is intended to.
Fig. 5 is a kind of clamp body structural representation of embodiment of the utility model ball screw assembly, vibration and noise detection device
Figure.
Fig. 6 is the fixture and tested ball of a kind of embodiment of the utility model ball screw assembly, vibration and noise detection device
The assembly relation schematic diagram of lead screw pair.
Fig. 7 is the axis system and axial direction of a kind of embodiment of the utility model ball screw assembly, vibration and noise detection device
Loading system schematic diagram.
Fig. 8 is a kind of workpiece installation position knot of embodiment of the utility model ball screw assembly, vibration and noise detection device
Structure schematic diagram.
Fig. 9 is a kind of axial loading system of embodiment of the utility model ball screw assembly, vibration and noise detection device
The structural schematic diagram of loading spring, spring guide pillar and spring spool.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
The utility model is further described in face.
Referring to a kind of Fig. 1 to vibration and noise measuring device of ball screw assembly, shown in Fig. 9, mainly by axis system,
Axial loading system, ball-screw clamp body, vibration and noise detection system, rack 1 and pedestal composition.Axis system includes master
Axis 11, spindle motor 12 and transmission device.Axial loading system pushes away cylinder 21, loading spring 22, spring guide pillar 29, bullet comprising electronic
Spring sleeve 28, pressure plate 25, contact block 26, pressure plate guide post 23, pressure plate guide sleeve 24 and displacement sensor 27.Ball wire
Thick stick clamp body includes clamp body 31 and clamping element 32.Vibration and noise detection system mainly include vibrating sensor 41,42,43,
Sound transducer 44 and signal transmitting and processing system.Rack includes spindle carrier 51, spindle motor bracket 61 and spindle motor
Rack plate 62.Rack 1 mainly includes upper bed-plate 71 and lower bottom base 72.
Main shaft 11 is hydrodynamic and hydrostatic pressure supports main shaft, and main shaft 11 is fixed on the leading flank of spindle carrier 51 in a vertical manner
On, spindle carrier 51 uses frame structure.Power, spindle motor are transmitted between main shaft 11 and spindle motor 12 in a manner of V belt translation
12 gear of output end 12a is connect by synchronous belt 13 with the driven gear 11d on 11 top of main shaft.Spindle motor bracket 61 uses
High column structure is mainly made of four columns, and spindle motor 12 is fixed on the top plate 62 of spindle motor bracket.Spindle carrier
51 are fixed on upper bed-plate 71, and spindle motor bracket 61 is fixed on lower bottom base 72.Upper bed-plate 71 passes through bolt 76 and pressing plate 73
Be fixed on lower bottom base 72, there is rubber vibration insulating pad 74 between pressing plate and upper bed-plate 71, upper bed-plate 71 and lower bottom base 72 it
Between have rubber vibration insulating pad 75.
One end of ball-screw fixture clamp body 31 and the end fixed connection of main shaft 11, the other end and tested ball-screw
Secondary rotating moving part (lead screw shaft 71 or feed screw nut 82) is engaged.In the present embodiment, ball-screw fixture presss from both sides
Specific 31 are engaged with the feed screw nut 42 of tested ball screw assembly, and compressing member 32 is by fastening screw by tested ball-screw
Secondary rotating moving part (i.e. feed screw nut 82) is pressed on ball-screw fixture clamp body 31.The end of main shaft 11 has flat
The short circular conical surface 11b of face 11a and protrusion, one end that ball-screw fixture clamp body 31 is coupled with main shaft 11 have plane 31b and
Short conical bore 31a, ball-screw fixture clamp body 31 are positioned on main shaft 11 by short circular conical surface 31a and plane 31b, are led to
Bolt is crossed to be clamped.
The electronic cylinder 21 that pushes away of axial loading system is located at the bottom surface side of upper bed-plate 71 and is fixed on upper bed-plate 71.It is axial
Loading spring 22, spring guide pillar 29, spring spool 28, pressure plate 25, contact block 26,23 and of pressure plate guide post of loading system
Pressure plate guide sleeve 24 is respectively positioned on the upper surface side of upper bed-plate 71.Pressure plate guide post 23 is fixed on upper bed-plate 71, is being added
There is rubber vibration insulating pad 210 between 23 pedestal of pressing plate guide post and upper bed-plate 71.The electronic push rod for pushing away cylinder 21 is from upper bed-plate 71
Downside passes through the through-hole 71a of upper bed-plate, and one end fixed connection with spring guide pillar 29；It is led with spring one end of loading spring 22
29 fixed connection of column, the other end and 28 fixed connection of spring spool.The upper end of spring guide pillar 29 is located at the inside of spring spool 28,
Spring spool 28 is moved with the deformation of spring.Pressure plate 25 is located at the top of spring spool 28 and fixes with spring spool 28
It is coupled, contact block 26 is fixed on pressure plate 25, for the parts moving linearly with tested ball screw assembly, (i.e. in the present embodiment
Lead screw shaft 81) contact.
Vibrating sensor 41 is fixed on the parts moving linearly of tested ball screw assembly, (i.e. in the present embodiment by fixture 44
Lead screw shaft 81) on, in the implementation case, vibrating sensor 41 is fixed on the lead screw of tested ball screw assembly, by fixture 45
On axis 81.Vibrating sensor 42 is fixed on pressure plate 25, for detecting the vibration of foundation of loading system.Vibrating sensor 43 is solid
It is scheduled on the cabinet 11c of main shaft 11, for detecting the vibration of foundation of axis system.Vibrating sensor 41,42 and 43 is all made of three
Axle acceleration type vibrating sensor or three axle speed degree type vibrating sensors.It is attached that sound transducer 44 is installed on tested ball screw assembly,
On close bracket 46.
Ball screw assembly, vibration and noise measurement method works as detection using ball screw assembly, vibration and noise measuring device
When the vibration of ball screw assembly, and noise, main shaft 11 drives the rotation of tested ball screw assembly, by ball-screw fixture clamp body 31
Dynamic component (rotating moving part is feed screw nut 82 in the present embodiment) rotation is transported, the electronic cylinder 21 that pushes away passes through compression-loaded spring
22 apply axial carry to the parts moving linearly ((the present embodiment linear movement component be lead screw shaft 81) of tested ball screw assembly,
Lotus, pressure plate 25 are moved in a straight line with the parts moving linearly of tested ball screw assembly, the straight-line trajectory of pressure plate by
Guide post 23 and guide sleeve 24 guide, and the displacement of the deflection and pressure plate of loading spring 22 is surveyed by displacement sensor 27
Amount, vibrating sensor 41,42 and 43 measure the vibration values of tested ball screw assembly, pressure plate and axis system respectively, meanwhile, sound
Sound sensor 44 measures the noise figure of tested ball screw assembly, the vibration values that will be obtained finally by signal transmitting and processing system
It is compared with noise figure and standard value.
Ball screw assembly, provided by the utility model is not limited to above embodiment, also can be realized its structure comprising other
With the embodiment of function.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (7)
1. ball screw assembly, vibration and noise measuring device, including rack, which is characterized in that be provided with main shaft system in the rack
System, axial loading system, vibration and noise detection system,
The axis system includes the driving device of the vertical main shaft being arranged in the rack and the driving main axis,
The bottom end of the main shaft is provided with the ball-screw clamp body of lead screw shaft or feed screw nut to fixed tested ball screw assembly,；
The axial loading system include the pressure plate component being connect with the parts moving linearly in tested ball screw assembly, to
It detects the displacement sensor of pressure plate component moving distance and applies the axial direction of elastic axial load to the pressure plate component
Load bringing device；
The vibration and noise detection system is issued including at least one to detect tested ball screw assembly, in the detection process
Vibration vibrating sensor and at least one sound to detect the noise that tested ball screw assembly, is issued in the detection process
The signal transmitting and processing of sound sensor and the vibration and noise signal to acquire, transmit and analyze tested ball screw assembly,
System.
2. ball screw assembly, vibration and noise measuring device as described in claim 1, which is characterized in that the vibrating sensor
Including the first, second, third vibrating sensor, the straight line fortune in tested ball screw assembly, is arranged in first vibrating sensor
On dynamic component, second vibrating sensor is arranged in the driving device of the main shaft, the third vibrating sensor setting
On the pressure plate component of the axial load bringing device.
3. ball screw assembly, vibration and noise measuring device as claimed in claim 1 or 2, which is characterized in that the axial load
Lotus bringing device includes:
Be vertically arranged in the rack it is electronic push away cylinder,
With the electronic spring guide pillar for pushing away cylinder and connecting,
Position-limited edge on the loading spring being set on the spring guide pillar, the bottom end of the loading spring and the spring guide pillar
Cooperation,
The spring spool being set between the spring guide pillar and loading spring, the top of the loading spring and the spring pocket
Position-limited edge cooperation on cylinder；
The pressure plate component includes the pressure plate connecting with the lifting guide part in the rack and is fixed on the pressurization
Contact block on plate.
4. ball screw assembly, vibration and noise measuring device as claimed in claim 1 or 2, which is characterized in that the ball wire
Thick stick clamp body includes fixture cylinder, and the top of the fixture cylinder has the interconnecting piece connecting with the bottom end of the main shaft, described
For tested ball screw assembly, insertion, the bottom of the fixture cylinder is provided with to fixed tested ball wire for the inner cavity of fixture cylinder
The ball-screw clamping element of the feed screw nut of thick stick pair.
5. ball screw assembly, vibration and noise measuring device as claimed in claim 4, which is characterized in that the interconnecting piece has
Plane and short conical bore, the bottom end of the main shaft have plane and the short circular conical surface with the short conical bore cooperation and protrusion.
6. ball screw assembly, vibration and noise measuring device as claimed in claim 1 or 2, which is characterized in that the driving dress
It sets including spindle motor, the gear of output end of the spindle motor is connected by synchronous belt and the driven gear on the main shaft top
It connects.
7. ball screw assembly, vibration and noise measuring device as claimed in claim 1 or 2, which is characterized in that the rack packet
Upper bed-plate and lower bottom base are included, the axis system is arranged on the upper bed-plate, is provided between the upper bed-plate and lower bottom base
Vibration isolation element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822260547.1U CN209372411U (en) | 2018-12-30 | 2018-12-30 | Ball screw assembly, vibration and noise measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822260547.1U CN209372411U (en) | 2018-12-30 | 2018-12-30 | Ball screw assembly, vibration and noise measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209372411U true CN209372411U (en) | 2019-09-10 |
Family
ID=67828457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822260547.1U Active CN209372411U (en) | 2018-12-30 | 2018-12-30 | Ball screw assembly, vibration and noise measuring device |
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| Country | Link |
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| CN (1) | CN209372411U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708874A (en) * | 2018-12-30 | 2019-05-03 | 慈兴集团有限公司 | Ball screw assembly, vibration and noise measuring device and measuring method |
| CN111579241A (en) * | 2020-06-08 | 2020-08-25 | 湖北科峰智能传动股份有限公司 | Multifunctional speed reducer performance test workbench |
-
2018
- 2018-12-30 CN CN201822260547.1U patent/CN209372411U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708874A (en) * | 2018-12-30 | 2019-05-03 | 慈兴集团有限公司 | Ball screw assembly, vibration and noise measuring device and measuring method |
| CN111579241A (en) * | 2020-06-08 | 2020-08-25 | 湖北科峰智能传动股份有限公司 | Multifunctional speed reducer performance test workbench |
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