CN107902600A - A kind of locking device and method for Vehicle Chassis Dynamic Tests - Google Patents

A kind of locking device and method for Vehicle Chassis Dynamic Tests Download PDF

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Publication number
CN107902600A
CN107902600A CN201710978503.XA CN201710978503A CN107902600A CN 107902600 A CN107902600 A CN 107902600A CN 201710978503 A CN201710978503 A CN 201710978503A CN 107902600 A CN107902600 A CN 107902600A
Authority
CN
China
Prior art keywords
electromagnet
lifter plate
rectangular frame
locating rod
follower block
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.)
Withdrawn
Application number
CN201710978503.XA
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Chinese (zh)
Inventor
杨佳志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Zhongji Yingke Science & Technology Co Ltd
Original Assignee
Chengdu Zhongji Yingke Science & Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Zhongji Yingke Science & Technology Co Ltd filed Critical Chengdu Zhongji Yingke Science & Technology Co Ltd
Priority to CN201710978503.XA priority Critical patent/CN107902600A/en
Publication of CN107902600A publication Critical patent/CN107902600A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B1/00Devices for securing together, or preventing relative movement between, constructional elements or machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00Measuring torque, work, mechanical power, or mechanical efficiency in general
    • G01L3/24Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B1/00Devices for securing together, or preventing relative movement between, constructional elements or machine parts
    • F16B2001/0035Devices for securing together, or preventing relative movement between, constructional elements or machine parts by the use of a magnetic material

Abstract

The invention discloses a kind of locking device and method for Vehicle Chassis Dynamic Tests, including rectangular frame, follower block is respectively fixed with four right angle electricals of rectangular frame, follower block is arranged on the securing lever, multiple grooves are provided with its inner peripheral wall along the circumferential direction of follower block, electromagnet I is slidably arranged in groove, the lateral wall of electromagnet I is connected by spring with groove slot bottom, pressure sensor is equipped with follower block upper surface, pressure sensor is connected by controller with the power switch of electromagnet I;Two sides bottom that the output terminal of two cylinders is parallel to each other with rectangular frame respectively is connected.Electromagnet I produces magnetic force and the inner wall of electromagnet I is adsorbed on locating rod outer wall after being powered, so that rectangular frame is locked on the securing lever, rectangular frame upper surface is contacted with the bottom surface of lifter plate at the same time, rectangular frame can provide the support of stabilization for lifter plate, shake to avoid four right angles of lifter plate, and then ensure a liter accuracy for detection data.

Description

A kind of locking device and method for Vehicle Chassis Dynamic Tests
Technical field
The present invention relates to a kind of dynamometer machine, in particular to a kind of locking device and method for Vehicle Chassis Dynamic Tests.
Background technology
Dynamometer machine being capable of over-all properties curve of the testing of electric motors from zero load to stall.Unloaded, load point is being carried out to motor Performance while tested, detection input voltage, electric current, power, power factor (PF), output torque, rotating speed, output power, Efficiency;Equipped with serial RS232 and printing interface;Manual/auto test can be divided, the testing time sets automatically;Electricity can be drawn automatically Machine characteristic curve;With speed feedback control, compensated torque control and determine torque, determine rotating speed functions, can measured motor range of instability The characteristic in domain.And on existing dynamometer machine, the lifting gear (application number of a kind of dynamometer machine as disclosed in Chinese patent literature: 201320467853.7), including workbench, and the lifter plate above workbench is arranged on, some use is offered on lifter plate In the mounting hole of fixed motor, lifter plate lower part is fixed with screw rod, worm gear and worm screw, worm gear is equipped between workbench and lifter plate Middle part offers the threaded hole to match with screw rod, and screw rod is threaded through in threaded hole, and worm screw one end is meshed with worm gear, and worm screw is another One end is connected with the driving mechanism that worm screw can be driven to rotate, the rectangular shape of lifter plate, solid on four corners of lifter plate lower part Surely there is locating rod, be fixed with workbench and be threaded through respectively corresponding thereto with the one-to-one positioning sleeve of locating rod, locating rod Positioning sleeve in, the female location hole of tool is offered on the outer wall of positioning sleeve, positioning bolt is threaded with location hole, Positioning bolt can lean with locating rod.But between the workbench of the dynamometer machine and the four of lifter plate corners by locating rod with Positioning sleeve mutually positions, and is not provided with the component by workbench and lifter plate locking, at work, holds between workbench and lifter plate It is also easy to produce and rocks, the measuring accuracy for being easy to cause automobile chassis is not high.
The content of the invention
It is an object of the invention to provide a kind of locking device for Vehicle Chassis Dynamic Tests, to ensure dynamometer machine to automobile The power test that chassis is stablized, while improve the precision of measurement data.
The purpose of the present invention is achieved through the following technical solutions:
A kind of locking device for Vehicle Chassis Dynamic Tests, including rectangular frame, at four right angles of the rectangular frame The follower block of tubular is respectively fixed with point, the follower block is arranged on the securing lever, along the circumferential in it of the follower block Multiple grooves are provided with circumferential wall, are slidably arranged in the electromagnet I of groove match in groove, and the electromagnet I is outer Side wall is connected by spring with groove slot bottom, and pressure sensor, the pressure sensor are equipped with the follower block upper surface Connected by controller with the power switch of electromagnet I;Further include two cylinders, the output terminals of two cylinders respectively with square Two sides bottom connection that shape frame is parallel to each other.For dynamometer machine of the prior art in the mistake realized lifter plate and moved up and down Easily there is the situation rocked in Cheng Zhong, lifter plate, and a kind of structure dedicated for lifter plate locking are designed to this applicant, i.e., A rectangular frame is arranged in the locating rod on workbench upper surface at four, and in four right angle electricals of rectangular frame The follower block of tubular is respectively equipped with, and a follower block is respectively sleeved in a locating rod, is parallel to each other on rectangular frame Both sides bottom is respectively equipped with cylinder, and cylinder provides power, i.e., on lifter plate as power output member for the lifting of rectangular frame When rising or declining, rectangular frame is synchronous with lifter plate holding all the time, is provided due to the middle part of lifter plate bottom surface by screw rod Support, so shake would generally be in its four right angles, and when the pressure sensing on the follower block upper surface for lifter plate When device detects pressure value, by sending detection signal to controller, the electricity that control instruction causes electromagnet I is sent by controller Source switch closes, and electromagnet I produces magnetic force and causes the inner wall of electromagnet I to adsorb the locating rod outer wall in metal material after being powered On so that rectangular frame is locked on the securing lever, and wherein rectangular frame upper surface is contacted with the bottom surface of lifter plate, i.e. rectangle frame Frame can provide the support of stabilization for lifter plate, shake to avoid four right angles of lifter plate, and then ensure lifter plate Get on the car and the accuracy of data is detected when chassis is detected.And after the power-off of electromagnet I, the spring-return of tensile deformation occurs before Pulling force is produced after deformation so that electromagnet I returns back to its original state, to release the locking to locating rod outer wall.
Further, match along the axial direction of follower block, the length of electromagnet I and the length of groove, be able to ensure that at the same time Electromagnet I is free to slide in inside grooves, and when electromagnet I is powered, outer wall spacing of the inner wall away from locating rod of electromagnet I is opposite It is smaller, disclosure satisfy that the moment that is powered, electromagnet I can quick adsorption on locating rod outer wall, and in locating rod and phantom ring Spacing between wall is relatively small, then ensures that the temporarily linkage when being powered of electromagnet I, phantom ring and locating rod is whole into one Body, achievees the purpose that to improve lifter plate stability in use.Wherein, pressure sensor uses the electrostatic capacity type pressure of model PTH503 Force snesor, using its high sensitivity, to realize timely support of the rectangular frame to lifter plate.
Be equipped with the annular groove concentric with locating rod in the follower block upper surface, electromagnet II be embedded in the annular groove and Contacted with the bottom of lifter plate, and electromagnet II is connected with the electromagnet I.Further, when rectangular frame carries lifter plate After respective support, the distribution of force on lifter plate is uneven, and when lifter plate one end stress is excessive, its other end may be sent out Situations such as upwarping or swinging is given birth to, the working status at lifter plate both ends is easily reduced the accurate of detection data after there is difference at this time Degree, in this regard, applicant opens up an annular groove concentric with locating rod in the upper surface of each follower block, and and electromagnet The electromagnet II of I series connection is embedded in annular groove, i.e., the moment being powered in electromagnet I, electromagnet II is also realized and connected with power supply, this When electromagnet II directly adsorb in the lifter plate bottom of metal material, and four electromagnet II correspond to four of lifter plate respectively Right angle so that lifter plate keeps being bonded with rectangular frame all the time, and avoid each part of lifter plate causes because of discontinuity The inaccurate situation of automobile chassis detection data occurs.
The longitudinal cross-section of the electromagnet I is arc-shaped to match with the locating rod outer circle wall.It is preferably, electric The longitudinal cross-section of magnet I is arc-shaped to match with locating rod outer circle wall so that when electromagnet I is powered and outside locating rod The contact surface increase of wall, and then improve the dynamics of holding with a firm grip of multiple electromagnet I to locating rod, improves lifter plate in use Stability.
The number of the groove is 4, and 4 grooves are uniformly distributed along the circumferential direction of the follower block inner peripheral wall.As It is preferred that the circumferential direction of 4 grooves along follower blocks is evenly distributed on its inner peripheral wall, i.e., electromagnetism is realized respectively on 4 Along ents Clamping of the iron I to locating rod, on the premise of low cost, realizes that electromagnet I, follower block and rectangular frame support lifter plate The maximization of intensity.
Along the radial direction of the follower block, the radical length of the electromagnet I is 1/3rd of the groove radical length. Preferably, along the radial direction of the follower block, the radical length of electromagnet I is 1/3rd of the groove radical length, Ensure that electromagnet I can ensure that electromagnet I when power is off can be fast with locating rod Rapid contact and while locked to it Speed returns back to its initial position.
The purpose of the present invention is realized by following another technical solutions:
A kind of locking method surveyed for automobile chassis, including step:In four positioning on workbench upper surface A rectangular frame is arranged on bar, and the follower block of tubular is respectively equipped with four right angle electricals of rectangular frame, and one with Motion block is respectively sleeved in a locating rod, and the both sides bottom being parallel to each other on rectangular frame is respectively equipped with cylinder, cylinder conduct Power output member, power is provided for the lifting of rectangular frame, i.e., lifter plate rise or decline when, rectangular frame all the time with liter Drop plate and keep synchronous, support is provided by screw rod due to the middle part of lifter plate bottom surface, so shake would generally for lifter plate In its four right angles, and when the pressure sensor on 7 face of follower block detects pressure value, signal is detected by sending To controller, control instruction is sent by controller the power switch of electromagnet I is closed, electromagnet I produces magnetic force after being powered So that the inner wall of electromagnet I is adsorbed on the locating rod outer wall of metal material so that rectangular frame is locked on the securing lever, its Middle rectangular frame upper surface is contacted with the bottom surface of lifter plate, i.e., rectangular frame can provide the support of stabilization for lifter plate, to keep away Four right angles for exempting from lifter plate shake, so ensure lifter plate get on the car chassis detection when detect data accuracy; And produce pulling force after the power-off of electromagnet I, after the spring-return deformation of tensile deformation occurs before so that electromagnet I returns back to Its original state, to release the locking to locating rod outer wall.
Further, the annular groove concentric with locating rod is equipped with the follower block upper surface, electromagnet II is embedded in annular Contacted in groove and with the bottom of lifter plate, and electromagnet II is connected with electromagnet I;When rectangular frame provides lifter plate corresponding branch After support, the distribution of force on lifter plate is uneven, and when lifter plate one end stress is excessive, its other end may upwarp or Swing situation, there is the accuracy that detection data are easily reduced after difference in the working status at lifter plate both ends at this time, to this The upper surface of each follower block opens up an annular groove concentric with locating rod, and the electromagnet II connected with electromagnet I In embedded annular groove, i.e., the moment in the energization of electromagnet I, electromagnet II also realizes and is connected with power supply that electromagnet II is direct at this time Absorption is in the lifter plate bottom of metal material, and four electromagnet II correspond to four right angles of lifter plate respectively so that lifting Plate keeps being bonded with rectangular frame all the time, and avoiding each part of lifter plate causes automobile chassis testing number because of discontinuity Occur according to inaccurate situation.
Compared with prior art, the present invention have the following advantages and advantages:
1st, magnetic force is produced after electromagnet I of the present invention is powered causes the inner wall of electromagnet I to adsorb the locating rod in metal material On outer wall so that rectangular frame is locked on the securing lever, and wherein rectangular frame upper surface is contacted with the bottom surface of lifter plate, i.e. square Shape frame can provide the support of stabilization for lifter plate, shake to avoid four right angles of lifter plate, and then ensure to rise Drop plate, which is got on the car, detects the accuracy of data when chassis is detected;
2nd, four electromagnet II of the invention correspond to four right angles of lifter plate respectively so that lifter plate all the time with rectangle frame Frame keeps fitting, avoids each part of lifter plate and causes the inaccurate situation of automobile chassis detection data because of discontinuity Occur;
3rd, the longitudinal cross-section of electromagnet I of the present invention is arc-shaped to match with locating rod outer circle wall so that in electromagnetism Contact surface when iron I is powered with locating rod outer wall increases, and then improves hold dynamics of multiple electromagnet I to locating rod, improves The stability of lifter plate in use.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the enlarged drawing at A in Fig. 1.
Mark and corresponding parts title in attached drawing:
1- locating rods, 2- rectangular frames, 3- cylinders, 4- screw rods, 5- workbench, 6- electromagnet II, 7- follower blocks, 8- are recessed Groove, 9- electromagnet I, 10- springs, 11- lifter plates.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and attached drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make For limitation of the invention.
Embodiment 1
As shown in Fig. 1~2, the present embodiment includes rectangular frame 2, distinguishes at four right angle electricals of the rectangular frame 2 The follower block 7 of tubular is fixed with, the follower block 7 is set in locating rod 1, along the circumferential in its inner periphery of the follower block 7 Multiple grooves 8 are provided with wall, the electromagnet I 9 to match with groove 8 is slidably arranged in groove 8, and the electromagnet I 9 is outer Side wall is connected by spring 10 with 8 slot bottom of groove, and pressure sensor is equipped with 7 upper surface of follower block, and the pressure passes Sensor is connected by controller with the power switch of electromagnet I 9;Further include two cylinders 3, the output terminal of two cylinders 3 The two sides bottom being parallel to each other respectively with rectangular frame 2 is connected.
For dynamometer machine of the prior art during realizing that lifter plate 11 moves up and down, lifter plate 11 easily occurs The situation rocked, designs this applicant a kind of structure locked dedicated for lifter plate 11, i.e., is located at workbench 5 at four A rectangular frame 2 is arranged in locating rod 1 on upper surface, and tubular is respectively equipped with four right angle electricals of rectangular frame 2 Follower block 7, and a follower block 7 is respectively sleeved in a locating rod 1, the both sides bottom being parallel to each other on rectangular frame 2 Cylinder 3 is respectively equipped with, cylinder 3 is used as power output member, provides power for the lifting of rectangular frame 2, i.e., rises in lifter plate 11 Or decline when, rectangular frame 2 keeps synchronous with lifter plate 11 all the time, due to 11 bottom surface of lifter plate middle part by screw rod 4 come Support is provided, so shake would generally be in its four right angles, and when the pressure on 7 upper surface of follower block for lifter plate 11 When force snesor detects pressure value, by sending detection signal to controller, control instruction is sent by controller and causes electromagnetism The power switch closure of iron I 9, electromagnet I 9 produce magnetic force and cause the inner wall of electromagnet I 9 is adsorbed to determine in metal material after being powered On 1 outer wall of bar of position so that rectangular frame 2 is locked in locating rod 1, wherein 2 upper surface of rectangular frame and the bottom of lifter plate 11 Face contacts, i.e., rectangular frame 2 can be the support that lifter plate 11 provides stabilization, occur to avoid four right angles of lifter plate 11 Rock, so ensure lifter plate 11 get on the car chassis detection when detect data accuracy.And after the power-off of electromagnet I 9, before Pulling force is produced after the reply deformation of spring 10 of tensile deformation occurs so that electromagnet I 9 returns back to its original state, with releasing pair The locking of 1 outer wall of locating rod.
Further, match along the axial direction of follower block 7, the length and the length of groove 8 of electromagnet I 9, while can be true It is free to slide in the inside of groove 8 to protect electromagnet I 9, when electromagnet I 9 is powered, outer wall of the inner wall of electromagnet I 9 away from locating rod 1 Spacing is relatively small, disclosure satisfy that the moment that is powered, electromagnet I 9 can quick adsorption on 1 outer wall of locating rod, and locating rod 1 Spacing between phantom ring inner wall is relatively small, then ensures that electromagnet I 9, phantom ring and locating rod 1 are temporary transient when being powered An entirety is linked into, achievees the purpose that to improve 11 stability in use of lifter plate.Wherein, pressure sensor uses model The capacitance type pressure sensor of PTH503, using its high sensitivity, to realize timely branch of the rectangular frame 2 to lifter plate 11 Support.
In the present embodiment, the annular groove concentric with locating rod 1 is equipped with 7 upper surface of follower block, electromagnet II 6 is embedded in Contacted in the annular groove and with the bottom of lifter plate 11, and electromagnet II 6 is connected with the electromagnet I 9.Further, when After rectangular frame 2 provides respective support to lifter plate 11, the distribution of force on lifter plate 11 is uneven, and in 11 one end of lifter plate When stress is excessive, situations such as its other end may be upwarped or swung, at this time the working status at 11 both ends of lifter plate occur Be easily reduced after difference detection data accuracy, in this regard, applicant opened up in the upper surface of each follower block 7 one with The concentric annular groove of locating rod 1, and the electromagnet II 6 connected with electromagnet I 9 is embedded in annular groove, i.e., is powered in electromagnet I 9 Moment, electromagnet II 6 also realizes and connected with power supply that electromagnet II 6 directly adsorbs in 11 bottom of lifter plate of metal material at this time Portion, and four electromagnet II 6 correspond to four right angles of lifter plate 11 respectively so that and lifter plate 11 is protected with rectangular frame 2 all the time Fitting is held, avoiding each part of lifter plate 11 causes the inaccurate situation hair of automobile chassis detection data because of discontinuity It is raw.
Preferably, the longitudinal cross-section of electromagnet I 9 is arc-shaped to match with 1 outer circle wall of locating rod so that in electricity Contact surface when magnet I 9 is powered with 1 outer wall of locating rod increases, and then improves the grip force of multiple I 9 pairs of locating rods 1 of electromagnet Degree, improves the stability of lifter plate 11 in use.
Preferably, the circumferential direction of 4 grooves 8 along follower blocks 7 is evenly distributed on its inner peripheral wall, i.e., in 4 Along ents The upper clamping for realizing I 9 pairs of locating rods 1 of electromagnet respectively, on the premise of low cost, realizes electromagnet I 9, follower block 7 and square Maximization of the shape frame 2 to 11 support strength of lifter plate.
Preferably, along the radial direction of the follower block 7, the radical length of electromagnet I 9 is 8 radical length of groove 1/3rd, ensureing that electromagnet I 9 can ensure electromagnet I 9 with 1 Rapid contact of locating rod and while locked to it When power is off can Quick-return to its initial position.
Embodiment 2
As shown in Figs. 1-2, a kind of locking method surveyed for automobile chassis, including step:At four on workbench 5 A rectangular frame 2 is arranged in locating rod 1 on end face, and tubular is respectively equipped with four right angle electricals of rectangular frame 2 Follower block 7, and a follower block 7 is respectively sleeved in a locating rod 1, the both sides bottom being parallel to each other on rectangular frame 2 point Not She You cylinder 3, cylinder 3 is used as power output member, power provided for the lifting of rectangular frame 2, i.e., rise in lifter plate 11 or It is that rectangular frame 2 keeps synchronous with lifter plate 11 all the time, since the middle part of 11 bottom surface of lifter plate is carried by screw rod 4 when declining For support, so shake would generally be in its four right angles, and when the pressure on 7 upper surface of follower block for lifter plate 11 When sensor detects pressure value, by sending detection signal to controller, control instruction is sent by controller and causes electromagnet I 9 power switch closure, electromagnet I 9 produce magnetic force and cause the inner wall of electromagnet I 9 to adsorb the positioning in metal material after being powered On 1 outer wall of bar so that rectangular frame 2 is locked in locating rod 1, wherein 2 upper surface of rectangular frame and the bottom surface of lifter plate 11 Contact, i.e. rectangular frame 2 can be the support that lifter plate 11 provides stabilization, be shaken to avoid four right angles of lifter plate 11 It is dynamic, so ensure lifter plate 11 get on the car chassis detection when detect the accuracy of data;And after the power-off of electromagnet I 9, send out before The spring 10 of raw tensile deformation produces pulling force after replying deformation so that electromagnet I 9 returns back to its original state, to release to fixed The locking of position 1 outer wall of bar.
Be equipped with the annular groove concentric with locating rod 1 in 7 upper surface of follower block, electromagnet II 6 be embedded in annular groove and with liter The bottom contact of plate 11 is dropped, and electromagnet II 6 is connected with electromagnet I 9;When rectangular frame 2 provides respective support to lifter plate 11 Afterwards, the distribution of force on lifter plate 11 is uneven, and when 11 one end stress of lifter plate is excessive, its other end may upwarp Or situation is swung, the working status at 11 both ends of lifter plate is easily reduced the accuracy for detecting data after there is difference at this time, right This opens up an annular groove concentric with locating rod 1 in the upper surface of each follower block 7, and the electricity connected with electromagnet I 9 Magnet II 6 is embedded in annular groove, i.e., the moment being powered in electromagnet I 9, electromagnet II 6 is also realized and connected with power supply, at this time electromagnetism Iron II 6 directly adsorbs in 11 bottom of lifter plate of metal material, and four electromagnet II 6 correspond to four of lifter plate 11 respectively Right angle so that lifter plate 11 all the time with rectangular frame 2 keep be bonded, avoid each part of lifter plate 11 because of discontinuity and The situation for causing automobile chassis detection data inaccurate occurs.
By above-mentioned locking method, electromagnet I of the present invention produces magnetic force and the inner wall of electromagnet I is adsorbed in gold after being powered On the locating rod outer wall for belonging to material so that rectangular frame is locked on the securing lever, wherein rectangular frame upper surface and lifter plate Bottom surface contact, i.e. rectangular frame can provide stable support for lifter plate, to avoid four right angles generation of lifter plate Rock, so ensure lifter plate get on the car chassis detection when detect data accuracy;
Four electromagnet II of the present invention correspond to four right angles of lifter plate respectively so that lifter plate all the time with rectangular frame Fitting is kept, avoiding each part of lifter plate causes the inaccurate situation hair of automobile chassis detection data because of discontinuity It is raw;
The longitudinal cross-section of electromagnet I of the present invention is arc-shaped to match with locating rod outer circle wall so that in electromagnet I Contact surface during energization with locating rod outer wall increases, and then improves hold dynamics of multiple electromagnet I to locating rod, improves lifting The stability of plate in use.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should all include Within protection scope of the present invention.

Claims (7)

1. a kind of locking device for Vehicle Chassis Dynamic Tests, including rectangular frame (2), it is characterised in that:In the rectangle frame The follower block (7) of tubular is respectively fixed with four right angle electricals of frame (2), the follower block (7) is set in locating rod (1), Multiple grooves (8) are provided with its inner peripheral wall along the circumferential direction of the follower block (7), the electromagnet I to match with groove (8) (9) it is slidably arranged in groove (8), and the lateral wall of the electromagnet I (9) is connected by spring (10) with groove (8) slot bottom, Pressure sensor is equipped with the follower block (7) upper surface, the pressure sensor passes through controller and electromagnet I (9) Power switch connects;Two cylinders (3) are further included, the output terminal of two cylinders (3) is mutually flat with rectangular frame (2) respectively Capable two sides bottom connection.
A kind of 2. locking device for Vehicle Chassis Dynamic Tests according to claim 1, it is characterised in that:Described servo-actuated Block (7) upper surface is equipped with the annular groove concentric with locating rod (1), and electromagnet II (6) is embedded in the annular groove and and lifter plate (11) bottom contact, and electromagnet II (6) is connected with the electromagnet I (9).
A kind of 3. locking device for Vehicle Chassis Dynamic Tests according to claim 1, it is characterised in that:The electromagnet The longitudinal cross-section of I (9) is arc-shaped to match with the locating rod (1) outer circle wall.
A kind of 4. locking device for Vehicle Chassis Dynamic Tests according to claim 1, it is characterised in that:The groove (8) number is 4, and 4 grooves (8) are uniformly distributed along the circumferential direction of the follower block (7) inner peripheral wall.
A kind of 5. locking device for Vehicle Chassis Dynamic Tests according to claim 1, it is characterised in that:It is servo-actuated along described The radial direction of block (7), the radical length of the electromagnet I (9) are 1/3rd of the groove (8) radical length.
6. a kind of locking method surveyed for automobile chassis, it is characterised in that including step:At four on workbench (5) A rectangular frame (2) is arranged in locating rod (1) on end face, and is respectively equipped with four right angle electricals of rectangular frame (2) The follower block (7) of tubular, and a follower block (7) is respectively sleeved on a locating rod (1), it is mutually flat on rectangular frame (2) Capable both sides bottom is respectively equipped with cylinder (3), and cylinder (3) is used as power output member, for rectangular frame (2) lifting provide it is dynamic Power, i.e., when lifter plate (11) rises or declines, rectangular frame (2) is synchronous with lifter plate (11) holding all the time, due to lifting The middle part of plate (11) bottom surface provides support by screw rod (4), so shake would generally be straight at its four for lifter plate (11) At angle, and when the pressure sensor on follower block (7) upper surface detects pressure value, by sending detection signal to control Device processed, sends control instruction by controller and the power switch of electromagnet I (9) is closed, and electromagnet I (9) produces magnetic after being powered Power causes the inner wall of electromagnet I (9) to adsorb on locating rod (1) outer wall of metal material so that rectangular frame (2) is locked in In locating rod (1), wherein rectangular frame (2) upper surface is contacted with the bottom surface of lifter plate (11), i.e., rectangular frame (2) can be to rise Drop plate (11) and stable support is provided, shake to avoid four right angles of lifter plate (11), and then ensure lifter plate (11) get on the car and the accuracy of data is detected when chassis is detected;And after electromagnet I (9) power-off, tensile deformation occurs before Spring (10) produces pulling force after replying deformation so that electromagnet I (9) returns back to its original state, to release to locating rod (1) outside The locking of wall.
7. a kind of locking method surveyed for automobile chassis according to claim 6, it is characterised in that in the follower block (7) upper surface is equipped with the annular groove concentric with locating rod (1), in the embedded annular groove of electromagnet II (6) and with lifter plate (11) Bottom contacts, and electromagnet II (6) is connected with electromagnet I (9);When rectangular frame (2) provides respective support to lifter plate (11) Afterwards, the distribution of force on lifter plate (11) is uneven, and when lifter plate (11) one end stress is excessive, its other end may occur Situation is upwarped or swings, the working status at lifter plate (11) both ends is easily reduced the accurate of detection data after there is difference at this time Degree, an annular groove concentric with locating rod (1) is opened up in the upper surface of each follower block (7) to this, and with electromagnet I (9) in the embedded annular groove of the electromagnet II (6) of series connection, i.e., moment for being powered in electromagnet I (9), electromagnet II (6) also realizes and Power supply connects, and electromagnet II (6) directly adsorbs in lifter plate (11) bottom of metal material, and four electromagnet II at this time (6) four right angles of lifter plate (11) are corresponded to respectively so that lifter plate (11) keeps being bonded with rectangular frame (2) all the time, avoids The situation that each part of lifter plate (11) causes automobile chassis detection data inaccurate because of discontinuity occurs.
CN201710978503.XA 2017-10-18 2017-10-18 A kind of locking device and method for Vehicle Chassis Dynamic Tests Withdrawn CN107902600A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110744331A (en) * 2019-11-13 2020-02-04 东莞智昊光电科技有限公司 Self-locking floating support device and positioning jig
CN111121117A (en) * 2018-10-30 2020-05-08 宁波方太厨具有限公司 Range hood with rectifying plate and control method
CN111267996A (en) * 2020-02-17 2020-06-12 北京海益同展信息科技有限公司 Transfer robot

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CN104828742A (en) * 2015-03-15 2015-08-12 刘瑞 Intelligent and safe lifting base
CN204964198U (en) * 2015-07-17 2016-01-13 安徽机电职业技术学院 Whole car heat balance test work bench's lift platform
CN205074314U (en) * 2015-10-28 2016-03-09 谢永宁 Boiler removes dust and overhauls platform
CN205300821U (en) * 2016-01-15 2016-06-08 宁波市信测检测技术有限公司 Liftable hysteresis lag dynamometer machine
CN205634810U (en) * 2016-02-02 2016-10-12 珠海及力高空作业设备有限公司 Anti pendulum power prevents weighing down mast type aerial working platform

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104828742A (en) * 2015-03-15 2015-08-12 刘瑞 Intelligent and safe lifting base
CN204964198U (en) * 2015-07-17 2016-01-13 安徽机电职业技术学院 Whole car heat balance test work bench's lift platform
CN205074314U (en) * 2015-10-28 2016-03-09 谢永宁 Boiler removes dust and overhauls platform
CN205300821U (en) * 2016-01-15 2016-06-08 宁波市信测检测技术有限公司 Liftable hysteresis lag dynamometer machine
CN205634810U (en) * 2016-02-02 2016-10-12 珠海及力高空作业设备有限公司 Anti pendulum power prevents weighing down mast type aerial working platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111121117A (en) * 2018-10-30 2020-05-08 宁波方太厨具有限公司 Range hood with rectifying plate and control method
CN110744331A (en) * 2019-11-13 2020-02-04 东莞智昊光电科技有限公司 Self-locking floating support device and positioning jig
CN111267996A (en) * 2020-02-17 2020-06-12 北京海益同展信息科技有限公司 Transfer robot

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