CN106644476A - Gearbox bearing failure detection device - Google Patents
Gearbox bearing failure detection device Download PDFInfo
- Publication number
- CN106644476A CN106644476A CN201611172842.0A CN201611172842A CN106644476A CN 106644476 A CN106644476 A CN 106644476A CN 201611172842 A CN201611172842 A CN 201611172842A CN 106644476 A CN106644476 A CN 106644476A
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- CN
- China
- Prior art keywords
- casing
- panel
- fingerprint
- industrial computer
- bearing failure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to a gearbox bearing failure detection device. The gearbox bearing failure detection device includes a box body, a box cover hinged onto the box body, and locking buckles for locking the box cover and the box body; the locking buckles are electrically connected with a fingerprint unlocking device installed on the outer surface of the box body; a data collector, a fingerprint recorder and an industrial personal computer are installed in the box body, wherein the data collector is electrically connected with a bearing fault detection sensor, and the fingerprint recorder and the industrial personal computer are electrically connected with the fingerprint unlocking device; the output ends of the data collector and the fingerprint recorder are electrically connected with the storage unit and data processing unit of the industrial personal computer; a panel which is used for encapsulating the industrial personal computer, the fingerprint recorder and the data collector in the in the box body and is provided with an industrial personal computer display screen is arranged in the box body; a power source line through hole and a sensing line through hole are formed in the panel; and sensor storage and fixing devices and data line storage and fixing devices are arranged at the inner surface of the box cover. With the gearbox bearing failure detection device of the invention adopted, data line disorder at a test site can be avoided, and hidden security risks can be eliminated; and data collection, recording and judging are simultaneously performed when detection is performed.
Description
Technical field
The present invention relates to a kind of box bearing failure detector, belongs to track traffic safety testing field.
Background technology
The track cause of China has come into industrialization and modernization period completely, and high ferro technology is led already at the world
First status.Gear housing ensures its safe military service performance as the critical component in high ferro Transport Machinery, prevents of serious failure,
It is very necessary.At present the method for box bearing fault diagnosis relies on vibration and noise detection method.With signal detection technique,
Computer technology, Digital Signal Processing, artificial intelligence technology are developed rapidly, and bearing failure diagnosis have become fusion number
The natural sciences such as, physics, mechanics and computer technology, Digital Signal Processing, the interdisciplinary study of artificial intelligence technology.Axle
Used as the critical component of vehicle, its manufacture, assembling quality are directly connected to security when vehicle high-speed runs to case apparatus.Its core
The heart is axle box bearing.Axle box bearing primary structure is made up of outer ring, inner ring, roller and the part of retainer four.Inner ring passes through hydraulic pressure
Overstress carries out elastic conjunction with the diameter of axle, with wheel shaft synchronous rotary during operation；Outer ring is installed in axle box or bearing saddle bore, is risen
Support the effect of car body；Roller is located between inner ring, outer ring, and when inner ring is with taking turns to rotating together with, outer ring remains stationary as, roller
Rolling friction is produced with outer ring, inner ring so as on the one hand around its axle center rotation, on the other hand around the raceway rolling of inside and outside circle.Roller
Size and number determine bearing capacity, retainer makes it be each located on evenly spaced position by segmentation roller,
Prevent mutual collision friction, it can be ensured that each rolling element self-movement.
Passenger train axle box bearing is split type bearing, is before assembling split state, carries out inner ring group during assembling successively
The work such as dress, outer assembling components, greasing, axle box sealing, its assembling operation is complex relative to integral bearing, if assembling shape
State is bad, or product sole mass existing defects, easily causes bearing fault.
Passenger train axle box bearing is split type bearing, is before assembling split state, carries out inner ring group during assembling successively
The work such as dress, outer assembling components, greasing, axle box sealing, its assembling operation is complex relative to integral bearing, if assembling shape
State is bad, or product sole mass existing defects, easily causes bearing fault.The final assembly working of split type bearing is by axle box
Assembly unit is completed, rather than Production of bearing producer is carried out, and is to verify bearing itself and assembling quality, palpus after split type bearing assembling
Carry out running adaptation.Bearing running test is according to national standard《The assembling of railway freight-car wheel shaft, maintenance and management rule》, simulation
Test of the wheel to working order, the production that check bearing is come with this and assembling quality.Bearing runs and test contributes to preventing because of axle
Hold production and assembling quality problem, and the wheel for causing is to running hot axle, the hot box accident of early stage, it is further perfect that bearing is given birth to
The detection of product and assembling quality, for the safe operation of rail truck has great significance.The concrete behaviour of bearing running test
Work is：Under certain condition (rotating speed and time), failure whether there is to carrying out running-in, detection bearing to the wheel before entrucking.Mesh
The method of front gear box bearing failure diagnosis relies on vibration and noise detection method, is required in bearing running scene sensor
Collection vibration signal or voice signal.There are currently no special instrument and complete these work, need staff to carry loaded down with trivial details biography
Sensor, various data wires and computer etc. are acquired at the scene.Such acquisition mode increased the work of staff
Amount, causes testing ground data wire chaotic, there is potential safety hazard.
The content of the invention
The goal of the invention of the present invention is to provide one kind and can monitor bearing running process of the test, judges bearing with the presence or absence of event
The portable box bearing failure detector of barrier.
The present invention realizes that its goal of the invention is adopted the technical scheme that：A kind of box bearing failure detector, bag
Include casing, the case lid being hinged on casing, with case lid casing hinged place opposite side arrange for locking case lid and casing
Lock, it is characterised in that：The unlocked by fingerprint device that the lock is installed with box outer surface is electrically connected, and is provided with casing and axle
Fingerprint recording device and industrial computer that the data acquisition unit of failure detection sensor electrical connection is electrically connected with unlocked by fingerprint device are held,
The output end of the data acquisition unit and fingerprint recording device is electrically connected with the memory cell of industrial computer and data processing unit；It is described
It is additionally provided with casing and is shown for industrial computer, fingerprint recording device, data acquisition unit to be packaged in casing and install industrial computer
The panel of screen, is provided with the sensing line passed through for the power supply line three-way hole of extracting power supply cord and for cell winding and leads on panel
Hole；The case lid inner surface setting has sensor storage fixing device and data wire storage fixing device.
Compared with prior art, the invention has the beneficial effects as follows：
First, the detecting instrument deposits fixing device fixing bearing failure detection sensor by sensor, by sensor, work
In a portable casing, such staff is entering instrument integration needed for the bearing fault detections such as control machine, data acquisition unit
Row fault detect when just without the need for carry sensors, various data wires and computer etc., it is to avoid testing ground data wire is mixed
Disorderly, eliminate safe hidden trouble；Data acquisition, record can synchronously be carried out in detection simultaneously and judged.
2nd, when operating personnel pass through the lock of unlocked by fingerprint opening detecting device, fingerprint recording device will open the work of lock
Make personal information record, the setting of unlocked by fingerprint device and fingerprint recording device not only acts as safe and secret effect, prior
Can be every operated by personnel's time of real time record and operational circumstances.
3rd, on the one hand the panel that box inside upper surface is arranged is used to encapsulate industrial computer, fingerprint recording device, data acquisition
Device, makes casing inner structure succinct, on the other hand installs industrial computer display screen, facilitates staff real-time when being detected
Observation detection data.
4th, on panel power supply line three-way hole and sensing line three-way hole is conveniently packaged in the power supply of the instrument below casing wainscot
Line and data wire are passed through, and when not detecting, data wire are accommodated at data wire storage fixing device, and sensor is fixed
At sensor storage fixing device, it is to avoid data wire is chaotic.
Further, in industrial computer of the present invention on be provided with transmitting element, be wirelessly connected with control terminal.So, nothing
Need any circuit to involve, you can to send data to control terminal, the further storage of data is processed in control terminal, set up number
According to storehouse.
Further, data wire storage fixing device of the present invention ties up fixing band or flexible collecting bag lattice for elastic force.
Further, sensor storage fixing device of the present invention is U-shaped card or open type elastic clip.
Further, the close case lid casing that power supply line three-way hole of the present invention and sensing line three-way hole are opened respectively in panel is hinged
On two angles of side.
Further, the side relative with case lid casing hinged place of the present invention arrange for locking case lid and casing
Latch for left and right two, the lock includes connecting shaft, torsion hasp and lift, and torsion is applied on lift, completes to close and beats
Unpacking child-operation.
Further, the power line of battery, the industrial computer and data acquisition unit is also equipped with casing of the present invention
It is connected with storage battery, the charge power supply line of the battery is drawn by the power supply line three-way hole on panel.As such, it is possible to not
Detected in the case of connection power supply, adapted to various detection environment.
Further, left and right two intervals (first interval and second are divided into by dividing plate with holes in casing of the present invention
It is interval), the panel on the interval of left and right two can individually be opened or dismantled；The industrial computer, data acquisition unit are arranged on the firstth area
It is interior；Battery is fixed in second interval, and the power line of the industrial computer and data acquisition unit is through the hole on dividing plate and storage
Battery detachable connects, and the charge power supply line of the battery is drawn by the power supply line three-way hole on panel.
Further, the concrete structure that can individually dismantle of panel on two intervals in left and right of the present invention is：Firstth area
Between on panel be bolted mode with the upper side of casing and dividing plate and be connected；Panel in second interval and dividing plate upside
By being articulated and connected, the panel in second interval can be opened without dismounting in face.
As such, it is possible to be individually replaced battery, mounted other instruments are not affected.
Description of the drawings
Fig. 1 is the dimensional structure diagram when detection means case lid of the embodiment of the present invention one is opened.
Fig. 2 is the dimensional structure diagram when detection means case lid of the embodiment of the present invention one is closed.
Fig. 3 is the dimensional structure diagram when detection means case lid of the embodiment of the present invention two is opened.
In figure, 1.0 is casing, and 1.1 is the display screen of the industrial computer on panel, and 1.2 is to sense line three-way hole, 1.3
For power supply line three-way hole, 2.0 is case lid, and 2.1 is that sensor deposits fixing device, and 2.2 is that data wire deposits fixing device, and 3.0 are
Unlocked by fingerprint device.
Specific embodiment
Embodiment one
Fig. 1, Fig. 2 illustrate, a kind of box bearing failure detector, including casing, the case lid being hinged on casing, with
The lock for locking case lid and casing that case lid casing hinged place opposite side is arranged, it is characterised in that：The lock and case
The unlocked by fingerprint device electrical connection that external surface is installed, is provided with the data electrically connected with bearing fault detection sensor in casing
Fingerprint recording device and industrial computer that collector is electrically connected with unlocked by fingerprint device, the data acquisition unit and fingerprint recording device
Output end is electrically connected with the memory cell and data processing unit of industrial computer；Be additionally provided with the casing for by industrial computer,
Fingerprint recording device, data acquisition unit are packaged in casing and install the panel of industrial computer display screen, are provided with panel for drawing
The power supply line three-way hole of power line and the sensing line three-way hole passed through for cell winding；The case lid inner surface setting has sensor
Storage fixing device and data wire storage fixing device.Data acquisition unit, the fingerprint recording being packaged in panel is not showed in figure
Device and industrial computer and its power line and sensing line.
Described in this example in industrial computer on be provided with transmitting element, be wirelessly connected with control terminal.
The storage of data wire described in this example fixing device ties up fixing band for elastic force.
The storage fixing device of sensor described in this example is open type elastic clip.
The close case lid casing that power supply line three-way hole described in this example and sensing line three-way hole are opened respectively in panel is hinged the two of side
On individual angle.
The lock for locking case lid and casing that side relative with case lid casing hinged place described in this example is arranged is
Left and right two, the lock includes connecting shaft, torsion hasp and lift, and torsion is applied on lift, completes to close and open chest
Operation.
Embodiment two
Fig. 3 illustrates, a kind of box bearing failure detector, including casing, the case lid being hinged on casing, with case lid
The lock for locking case lid and casing that casing hinged place opposite side is arranged, it is characterised in that：Outside the lock and casing
The unlocked by fingerprint device electrical connection that surface is installed, is provided with the data acquisition electrically connected with bearing fault detection sensor in casing
Fingerprint recording device and industrial computer that device is electrically connected with unlocked by fingerprint device, the output of the data acquisition unit and fingerprint recording device
End electrically connects with the memory cell and data processing unit of industrial computer；It is additionally provided with the casing for by industrial computer, fingerprint
Logger, data acquisition unit are packaged in casing and install the panel of industrial computer display screen, are provided with panel for drawing power supply
The power supply line three-way hole of line and the sensing line three-way hole passed through for cell winding；The case lid inner surface setting has sensor to deposit
Fixing device and data wire storage fixing device.Do not show in figure be packaged in panel data acquisition unit, fingerprint recording device and
Industrial computer and its power line and sensing line.
Described in this example in industrial computer on be provided with transmitting element, be wirelessly connected with control terminal.
The storage of data wire described in this example fixing device ties up fixing band for elastic force.
The storage fixing device of sensor described in this example is open type elastic clip.
The close case lid casing that power supply line three-way hole described in this example and sensing line three-way hole are opened respectively in panel is hinged the two of side
On individual angle.
The lock for locking case lid and casing that side relative with case lid casing hinged place described in this example is arranged is
Left and right two, the lock includes connecting shaft, torsion hasp and lift, and torsion is applied on lift, completes to close and open chest
Operation.
Battery, the electricity of the industrial computer, data acquisition unit and fingerprint recording device are also equipped with described in this example in casing
Source line is connected with storage battery, and the charge power supply line of the battery is drawn by the power supply line three-way hole on panel.
Two intervals in left and right are divided into by dividing plate with holes in casing described in this example, the panel on the interval of left and right two can be single
Solely open or dismantle；The industrial computer, fingerprint recording device, data acquisition unit are arranged in first interval；Battery is fixed on
Two is interval interior, and the power line of the industrial computer, data acquisition unit and fingerprint recording device is removable through the hole on dividing plate and battery
Fraction connects, and the charge power supply line of the battery is drawn by the power supply line three-way hole on panel.Do not show in panel in figure
Dividing plate, battery, data acquisition unit, fingerprint recording device and industrial computer and its power line and sensing line.
Fig. 3 illustrates that the concrete structure that the panel on two intervals in left and right described in this example can be dismantled individually is：First interval
On panel be bolted mode with the upper side of casing and dividing plate and be connected；Panel in second interval and dividing plate upper side
By being articulated and connected, the panel in second interval can be opened without dismounting.
Embodiment three
A kind of box bearing failure detector, including casing, the case lid being hinged on casing, are hinged with case lid casing
The lock for locking case lid and casing that place's opposite side is arranged, it is characterised in that：The lock is installed with box outer surface
The electrical connection of unlocked by fingerprint device, the data acquisition unit that electrically connects with bearing fault detection sensor is installed in casing and is referred to
The fingerprint recording device and industrial computer of line tripper electrical connection, the output end and industry control of the data acquisition unit and fingerprint recording device
The memory cell of machine and data processing unit are electrically connected；It is additionally provided with the casing for by industrial computer, fingerprint recording device, number
The panel of industrial computer display screen is packaged in casing and installed according to collector, and the power line for extracting power supply cord is provided with panel
Through hole and the sensing line three-way hole passed through for cell winding；The case lid inner surface setting have sensor storage fixing device and
Data wire deposits fixing device.Do not show in figure the data acquisition unit, fingerprint recording device and the industrial computer that are packaged in panel and
Its power line and sensing line.
Described in this example in industrial computer on be provided with transmitting element, be wirelessly connected with control terminal.
The storage fixing device of data wire described in this example is flexible collecting bag lattice.
The storage fixing device of sensor described in this example is U-shaped card.
The close case lid casing that power supply line three-way hole described in this example and sensing line three-way hole are opened respectively in panel is hinged the two of side
On individual angle.
The lock for locking case lid and casing that side relative with case lid casing hinged place described in this example is arranged is
Left and right two, the lock includes connecting shaft, torsion hasp and lift, and torsion is applied on lift, completes to close and open chest
Operation.
Battery, the electricity of the industrial computer, data acquisition unit and fingerprint recording device are also equipped with described in this example in casing
Source line is connected with storage battery, and the charge power supply line of the battery is drawn by the power supply line three-way hole on panel.
Two intervals in left and right are divided into by dividing plate with holes in casing described in this example, the panel on the interval of left and right two can be single
Solely open or dismantle；The industrial computer, fingerprint recording device, data acquisition unit are arranged in first interval；Battery is fixed on
Two is interval interior, and the power line of the industrial computer, data acquisition unit and fingerprint recording device is removable through the hole on dividing plate and battery
Fraction connects, and the charge power supply line of the battery is drawn by the power supply line three-way hole on panel.
The concrete structure that can individually dismantle of panel on two intervals in left and right described in this example is：Panel in first interval
Mode is bolted with the upper side of casing and dividing plate to be connected；Panel in second interval is with dividing plate upper side by being hinged
Connection, the panel in second interval can be opened without dismounting.
Claims (9)
1. a kind of box bearing failure detector, including casing, the case lid being hinged on casing, with case lid casing hinged place
The lock for locking case lid and casing that opposite side is arranged, it is characterised in that：The lock is installed with box outer surface
Unlocked by fingerprint device is electrically connected, and the data acquisition unit and fingerprint electrically connected with bearing fault detection sensor is provided with casing
The fingerprint recording device of tripper electrical connection and the output end and industrial computer of industrial computer, the data acquisition unit and fingerprint recording device
Memory cell and data processing unit electrical connection；It is additionally provided with the casing for by industrial computer, fingerprint recording device, data
Collector is packaged in casing and installs the panel of industrial computer display screen, is provided with panel logical for the power line of extracting power supply cord
Hole and the sensing line three-way hole passed through for cell winding；The case lid inner surface setting has sensor to deposit fixing device sum
Fixing device is deposited according to line.
2. a kind of box bearing failure detector according to claim 1, it is characterised in that：On in the industrial computer
Transmitting element is provided with, is wirelessly connected with control terminal.
3. a kind of box bearing failure detector according to claim 1, it is characterised in that：The data wire storage
Fixing device ties up fixing band or flexible collecting bag lattice for elastic force.
4. a kind of box bearing failure detector according to claim 1, it is characterised in that：The sensor storage
Fixing device is U-shaped card or open type elastic clip.
5. a kind of box bearing failure detector according to claim 1, it is characterised in that：The power supply line three-way hole
The close case lid casing opened respectively in panel with sensing line three-way hole is hinged on two angles of side.
6. a kind of box bearing failure detector according to claim 1, it is characterised in that：Described and case lid casing
The lock for locking case lid and casing that the relative side in hinged place is arranged is left and right two, the lock include connecting shaft,
Torsion hasp and lift, apply torsion on lift, complete to close and open chest operation.
7. a kind of box bearing failure detector according to claim 1, it is characterised in that：Also pacify in the casing
Equipped with battery, the power line of the industrial computer, data acquisition unit and fingerprint recording device is connected with storage battery, the battery
Charge power supply line drawn by the power supply line three-way hole on panel.
8. a kind of box bearing failure detector according to claim 7, it is characterised in that：By band in the casing
The dividing plate in hole is divided into two intervals in left and right, and the panel on the interval of left and right two can individually be opened or dismantled；The industrial computer, fingerprint
Logger, data acquisition unit are arranged in first interval；Battery is fixed in second interval, the industrial computer, data acquisition
The power line of device and fingerprint recording device is connected through the hole on dividing plate with battery detachable, the charge power supply of the battery
Line is drawn by the power supply line three-way hole on panel.
9. a kind of box bearing failure detector according to claim 8, it is characterised in that：The left and right Liang Ge areas
Between on the concrete structure that can individually dismantle of panel be：Panel in first interval passes through bolt with the upper side of casing and dividing plate
Connected mode connects；, by being articulated and connected, the panel in second interval can be without for panel in second interval and dividing plate upper side
Dismounting is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611172842.0A CN106644476A (en) | 2016-12-18 | 2016-12-18 | Gearbox bearing failure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611172842.0A CN106644476A (en) | 2016-12-18 | 2016-12-18 | Gearbox bearing failure detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106644476A true CN106644476A (en) | 2017-05-10 |
Family
ID=58823183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611172842.0A Pending CN106644476A (en) | 2016-12-18 | 2016-12-18 | Gearbox bearing failure detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644476A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030031A (en) * | 2018-06-28 | 2018-12-18 | 郑州轻工业学院 | Automobile electric power-assisted steering controller performance test macro and method |
| CN111028650A (en) * | 2019-12-31 | 2020-04-17 | 中国科学院空间应用工程与技术中心 | Material exposes experimental box and material extravehicular exposure device |
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| CN2677295Y (en) * | 2004-02-26 | 2005-02-09 | 中国人民解放军镇江船艇学院 | Portable monitoring, failure diagnostic instrument for ship electic machine operation state |
| CN2937407Y (en) * | 2006-06-16 | 2007-08-22 | 浙江巨龙箱包有限公司 | Multipurpose intelligent safe |
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| CN105606364A (en) * | 2016-03-23 | 2016-05-25 | 成都柏森松传感技术有限公司 | Monitoring equipment for bearing running test |
| CN205384739U (en) * | 2016-03-15 | 2016-07-13 | 孙宝磊 | Safe type data acquisition box |
| CN205506393U (en) * | 2016-03-23 | 2016-08-24 | 成都柏森松传感技术有限公司 | Bearing running -in test 's monitoring instrument |
| CN205507779U (en) * | 2016-04-12 | 2016-08-24 | 熊浪 | Financial affairs are with theftproof computer |
| CN206248329U (en) * | 2016-12-18 | 2017-06-13 | 成都柏森松传感技术有限公司 | A kind of box bearing fault detect case |
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2016
- 2016-12-18 CN CN201611172842.0A patent/CN106644476A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2677295Y (en) * | 2004-02-26 | 2005-02-09 | 中国人民解放军镇江船艇学院 | Portable monitoring, failure diagnostic instrument for ship electic machine operation state |
| CN2937407Y (en) * | 2006-06-16 | 2007-08-22 | 浙江巨龙箱包有限公司 | Multipurpose intelligent safe |
| CN205125341U (en) * | 2015-11-09 | 2016-04-06 | 三峡大学 | Suitcase based on smart mobile phone and fingerprint identification |
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| CN105606364A (en) * | 2016-03-23 | 2016-05-25 | 成都柏森松传感技术有限公司 | Monitoring equipment for bearing running test |
| CN205506393U (en) * | 2016-03-23 | 2016-08-24 | 成都柏森松传感技术有限公司 | Bearing running -in test 's monitoring instrument |
| CN205507779U (en) * | 2016-04-12 | 2016-08-24 | 熊浪 | Financial affairs are with theftproof computer |
| CN206248329U (en) * | 2016-12-18 | 2017-06-13 | 成都柏森松传感技术有限公司 | A kind of box bearing fault detect case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030031A (en) * | 2018-06-28 | 2018-12-18 | 郑州轻工业学院 | Automobile electric power-assisted steering controller performance test macro and method |
| CN111028650A (en) * | 2019-12-31 | 2020-04-17 | 中国科学院空间应用工程与技术中心 | Material exposes experimental box and material extravehicular exposure device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20220110 Address after: 610031 room 66666, building 11, No. 11, Jiaogui 1st lane, Jinniu District, Chengdu, Sichuan Applicant after: Chengdu Shenkai Technology Co.,Ltd. Address before: 1802, innovation building, Southwest Jiaotong University, No. 111, North Section 1, 2nd Ring Road, Jinniu District, Chengdu, Sichuan 610000 Applicant before: CHENGDU BOSENSONG SENSING TECHNOLOGY Co.,Ltd. |
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Application publication date: 20170510 |
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