CN101937033B - Automatic testing device of performance of electromagnet for valve - Google Patents
Automatic testing device of performance of electromagnet for valve Download PDFInfo
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- CN101937033B CN101937033B CN2010102372994A CN201010237299A CN101937033B CN 101937033 B CN101937033 B CN 101937033B CN 2010102372994 A CN2010102372994 A CN 2010102372994A CN 201010237299 A CN201010237299 A CN 201010237299A CN 101937033 B CN101937033 B CN 101937033B
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Abstract
The invention discloses an automatic testing device of performance of an electromagnet for a valve, which comprises a workbench, a tension and pressure sensor, a displacement sensor, a hydraulic proportional amplifying plate, a slide block and a linear slipway which is fixedly connected with the workbench. The electromagnet to be tested is placed and fastened on the slide block; the slide block is in slide fit in the vertical direction of the linear slipway; the tension and pressure sensor is fixed on the workbench under the slide block; a touch rod of the tension and pressure sensor is positioned at the right lower part of an armature of the electromagnet to be tested; the displacement sensor is fixedly connected to the linear slipway; and the free end of a slide rod of the displacement sensor is fixed on the slide block. The automatic testing device also comprises a programmable logic controller, a data collecting card, a current sensor and an industrial control computer, wherein the programmable logic controller is electrically connected with the hydraulic proportional amplifying plate and an operating button on the workbench respectively; and the data collecting card is electrically connected with the displacement sensor, the tension and pressure sensor, the current sensor and the industrial control computer respectively.
Description
Technical field
The present invention relates to a kind of electromagnet performance test field, specifically is a kind of valve control electromagnet performance automatic test device.
Background technology
At present; At automotive field; Hydraulic buttery valve is applied in the topworks of auto continuously variable transmission electrohydraulic control system; Hydraulic buttery valve in the topworks of this electrohydraulic control system is generally solenoid-operated proportional reduction valve and electromagnetic proportion relief valve, and the precision of solenoid-operated proportional reduction valve and electromagnetic proportion relief valve directly has influence on the usability of auto continuously variable transmission.Directly have influence on the precision of solenoid valve as the characteristic of the proportion electro-magnet of one of vitals of solenoid-operated proportional reduction valve and electromagnetic proportion relief valve; Therefore; Before the solenoid valve assembling, need the static properties of Comparative Examples electromagnet to detect, the static properties of said electromagnet detects and mainly comprises the force-displacement behavior of electromagnet and the power-current characteristics of electromagnet.Its structure of described proportion electro-magnet generally comprises armature, guide pin bushing, housing, concentric magnetic plug.Process for permeability magnetic material for two sections before and after the guide pin bushing, the centre is non-magnet material (magnetism-isolating loop) for one section.The concentric magnetic plug of configuration between guide pin bushing and the housing, the rear end of armature is connected with back-moving spring and set screw, after the electromagnet energising, through armature output electromagnetic force and displacement.
The valve control electromagnet performance testing device of prior art comprises Working gantry, electromagnet fixed head, pull pressure sensor, displacement transducer, displacement adjusting mechanism, electric-hydraulic proportion amplification plate, sampling resistor and function recording instrument.On the electromagnet fixed head, pull pressure sensor is fixed on the front end of displacement adjusting mechanism main shaft to described electromagnet through screw retention, and displacement transducer is connected with the tail end of main shaft.When electromagnet performance test; At first make magnet coil pass to certain electric current and remain unchanged; The knob of hand rotation displacement adjusting mechanism then makes the main shaft of displacement adjusting mechanism drive pull pressure sensor forward and moves, and makes the feeler lever of pressure transducer depress the armature in the electromagnet; Thereby measure the electromagnetic force of electromagnet and the displacement of measuring armature, so just measure the force-displacement behavior of electromagnet through displacement transducer; When detecting the power of electromagnet-current characteristics; Make the feeler lever of pull pressure sensor depress electromagnet armature and make it to be fixed on some positions; Generally be the mid point of nominal operation stroke, change the size of electromagnet input Control current then, transfer the electric current variation to change in voltage through sampling resistor; Record the electromagnetic force of respective electrical magnet output simultaneously through pull pressure sensor, promptly accomplish electromagnetism ferreous-test of current characteristics.The data of more than measuring are by the function recording instrument record, or are read by the manual pointwise of testing staff, and test findings needs by the testing staff according to test figure or trial curve manual process.This pick-up unit is complex structure, bulky not only, and tests with this pick-up unit, has more human factor influence, and measuring accuracy is low.Electromagnet passes through screw retention on the electromagnet fixed head in addition; Carrying out next electromagnet when detecting; Need take off the electromagnet that is screwed by instrument; And then with instrument next electromagnet is installed and is detected, thereby influence the test speed of electromagnet, increase tester's labour intensity.This valve control electromagnet device for detecting performance incompatibility valve control electromagnet mass detection demand.
Summary of the invention
The technical matters that the present invention will solve is, overcomes the defective of above prior art, provide a kind of simple in structure, measuring accuracy is high, test speed is fast, labour intensity is little and can adapt to the valve control electromagnet performance automatic test device of mass detection.
Technical solution of the present invention is; A kind of valve control electromagnet performance automatic test device with following structure is provided: it comprises worktable, pull pressure sensor, displacement transducer, electric-hydraulic proportion amplification plate; It also comprises slide block and the linear slide unit that is connected with stationary table; Electromagnet to be measured is placed also and is fixed tightly on the slide block, and vertically being slidingly matched of slide block property along the line slide unit, and said pull pressure sensor is fixed on the worktable of slide block below; And the feeler lever of pull pressure sensor be positioned at electromagnet armature to be measured under; Said displacement transducer is fixedly connected on the linear slide unit, and the free end of the slide bar of displacement transducer is fixed on the slide block, and it also comprises programmable logic controller (PLC) (PLC), data collecting card, current sensor and industrial computer; Said programmable logic controller (PLC) is electrically connected with the action button that electric-hydraulic proportion is amplified on plate and the worktable respectively, and described data collecting card is electrically connected with displacement transducer, pull pressure sensor, current sensor, industrial computer respectively.
After adopting above structure, valve control electromagnet performance automatic test device of the present invention compared with prior art has the following advantages: this valve control electromagnet performance automatic test device; Be fit to the test of multiple valve control electromagnet performance; Test process is through PLC controls test, and the simulating signal of displacement transducer, pull pressure sensor and current sensor test is through the digital-to-analog conversion of data collecting card, and the displacement data that collects, electromagnetic force data, voltage or current data are passed to industrial computer; Industrial computer utilizes software that the data that obtain are analyzed, handled; And generation electromagnet family curve, as, force-displacement behavior curve and power-current characteristics curve; Again with this curve display on the display screen of industrial computer, supply the tester to the electromagnet performance evaluation.Its test process automation degree is high, and test speed is fast, and labour intensity is low; In addition, well avoided artificial factor, thereby made the measuring accuracy of electromagnet high; Moreover this valve control electromagnet performance automatic test apparatus structure is simple, and volume is little, and low cost of manufacture is fit to electromagnet manufacturer's mass detection and the demand that pipelining detects automatically.
As a kind of improvement; Said electromagnet to be measured is placed and is fixed on the slide block; Be meant that the bottom of the lateral wall of said slide block is provided with the panel of a ccontaining electromagnet to be measured; Also be provided with support plate on the slide block lateral wall of said panel top, said support plate be provided with one be used to compress electromagnet to be measured clamping cylinder, described clamping cylinder is electrically connected with programmable logic controller (PLC).Adopt clamping cylinder to replace tradition to be used for fixing the screw of electromagnet; And work by the PLC controls clamping cylinder; Make whole testing device intelligent more, not only can further improve the testing efficiency of electromagnet, and easy to operate during fixed electromagnet.
As a kind of improvement; Vertically being slidingly matched of said slide block property along the line slide unit; The top that is meant said linear slide unit is provided with a drive motor; The output shaft of said drive motor connects a leading screw, and the madial wall of said slide block is provided with the ball-screw nut that matches with leading screw, and described drive motor is electrically connected with programmable logic controller (PLC).The rotation that slides through the PLC controls drive motor of this slide block is accomplished, and littler than the manual operation error of prior art, precision is higher.
As preferably, described motor is a servomotor, and this is because the control of the speed of servomotor and positional precision is very accurate, and the error during the minimizing electromagnet performance test has improved the measuring accuracy of electromagnet performance.
As a kind of improvement, described industrial computer is connected with PRN device, and the electromagnet performance test curve printing that this PRN device can generate the industrial computer analysis very easily comes out, and is convenient to the performance that the tester analyzes electromagnet.
Description of drawings
Fig. 1 is the structural representation of valve control electromagnet performance automatic test device of the present invention.
Fig. 2 is the perspective view of valve control electromagnet performance automatic test device of the present invention.
Fig. 3 is the sectional structure synoptic diagram of valve control electromagnet performance automatic test device of the present invention.
As shown in the figure:
1, worktable, 2, pull pressure sensor, 3, linear slide unit, 4, drive motor, 5, shaft coupling, 6, clamping cylinder; 7, support plate, 8, slide block, 9, electromagnet to be measured, 10, panel, 11, leading screw; 12, displacement transducer, 13, slide bar, 14, data collecting card, 15, programmable logic controller (PLC), 16, industrial computer; 17, electric-hydraulic proportion is amplified plate, and 18, current sensor, 19, the hole, 20, feeler lever, 21, ball-screw nut.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Like Fig. 1, Fig. 2 and shown in Figure 3.
Valve control electromagnet performance automatic test device of the present invention; It comprises worktable 1, pull pressure sensor 2, displacement transducer 12, electric-hydraulic proportion amplification plate 17; It also comprises slide block 8 and the linear slide unit 3 that is fixedly connected with worktable 1; Electromagnet 9 to be measured is placed and is fixed tightly on the slide block 8; And vertically being slidingly matched of slide block 8 property slide units 3 along the line; Said pull pressure sensor 2 is fixed on the worktable 1 of slide block 8 belows, and the feeler lever 20 of pull pressure sensor 2 be positioned at electromagnet 9 armature to be measured under, said displacement transducer 12 is fixedly connected on the linear slide unit 3; And the free end of the slide bar 13 of displacement transducer 12 is fixed on the slide block 8; It also comprises programmable logic controller (PLC) (PLC) 15, data collecting card 14, current sensor 18 and industrial computer 16, and said programmable logic controller (PLC) 15 is electrically connected with the action button that electric-hydraulic proportion is amplified on plate 17 and the worktable 1 respectively, and described data collecting card 14 is electrically connected with displacement transducer 12, pull pressure sensor 2, current sensor 18, industrial computer 16 respectively.
Said electromagnet to be measured 9 is placed and is fixed on the slide block 8; Be meant that the bottom of the lateral wall of said slide block 8 is provided with the panel 10 of a ccontaining electromagnet 9 to be measured; Also be provided with support plate 7 on slide block 8 lateral walls of said panel 10 tops; Said support plate 7 be provided with one be used to compress electromagnet 9 to be measured clamping cylinder 6, described clamping cylinder 6 is electrically connected with programmable logic controller (PLC) 15.
Vertically being slidingly matched of said slide block 8 property slide units 3 along the line; The top that is meant said linear slide unit 3 is provided with a drive motor 4; The output shaft of said drive motor 4 connects a leading screw 11; The madial wall of said slide block 8 is provided with the ball-screw nut 21 that matches with leading screw 11, and described drive motor 4 is electrically connected with programmable logic controller (PLC) 15.
The feeler lever 20 of said pull pressure sensor 2 be positioned at electromagnet 9 armature to be measured under; Be meant that said panel 10 is provided with the hole 19 that the feeler lever 20 that supplies pull pressure sensor 2 upwards compresses electromagnet 9 armature to be measured, the axis of the feeler lever 20 of said pull pressure sensor 2 and the axis in hole 19 are on same straight line.
Described drive motor 4 is a servomotor.
The output shaft of said drive motor 4 is fixedly connected with the top of leading screw 11 and is meant, the output shaft of said drive motor 4 is fixedly connected through shaft coupling 5 with the top of leading screw 11.
Described industrial computer 16 is connected with PRN device.
The principle of work of valve control electromagnet performance automatic test device of the present invention is: at first electromagnet 9 to be measured is placed on the panel 10; Press the action button of lower table 1; 6 work of programmable logic controller (PLC) 15 control clamping cylinders, clamping cylinder 6 piston rod compress electromagnet 9 to be measured downwards; Simultaneously, programmable logic controller (PLC) 15 control electric-hydraulic proportions are amplified plates 17 and are opened, make the certain electric current of electromagnet 9 inputs to be measured after; Programmable logic controller (PLC) 15 controlling and driving motors 4 rotate; The output shaft of drive motor 4 drives leading screw 11 and rotates, and slide block 8 moves down, when the armature of electromagnet 9 to be measured compresses the feeler lever 20 of pull pressure sensor 2; Pull pressure sensor 2 sends to data collecting card 14 with the signal of electromagnet 9 output electromagnetic forces to be measured; Simultaneously, the slide bar 13 that drives displacement transducer 12 that moves down of slide block 8 moves, and displacement transducer 12 passes to data collecting card 14 with the displacement signal of gained; Data collecting card 14 converts electromagnetic force signal and the displacement signal received into digital signal; And digital signal sent to industrial computer 16, industrial computer 16 usefulness softwares carry out analyzing and processing with the digital signal that receives, and generate the force-displacement behavior curve of electromagnet; When the power-current characteristics of test electromagnet; Programmable logic controller (PLC) 15 controlling and driving motors 4 rotate; Move down thereby make slide block 8 drive electromagnet 9 to be measured, when the armature of electromagnet 9 to be measured upwards was compressed to the mid point of stroke by the feeler lever 20 of pull pressure sensor 2, programmable logic controller (PLC) 15 control electric-hydraulic proportions were amplified plate 17 and are opened; Make the electric current of the different sizes of electromagnet 9 inputs to be measured; Thereby make pull pressure sensor 2 obtain the electromagnetic force that different electric flows down electromagnet 9 outputs to be measured, and electromagnetic force is passed to data collecting card 14, simultaneously; Current sensor 18 passes to data collecting card 14 with the curtage signal that electromagnet 9 to be measured amplifies plate 17 inputs through electric-hydraulic proportion; Data collecting card 14 becomes digital signal transfers to give industrial computer 16 with the curtage conversion of signals electromagnetic force signal that receives, and industrial computer 16 usefulness softwares carry out analyzing and processing with the digital signal that receives, and generates the power-current characteristics curve of electromagnet.After test finishes, 6 work of PLC controls clamping cylinder, the piston rod of clamping cylinder 6 unclamps electromagnet 9 to be measured, and then carries out the test of next electromagnet performance.
Claims (7)
1. valve control electromagnet performance automatic test device; It comprises worktable (1), pull pressure sensor (2), displacement transducer (12), electric-hydraulic proportion amplification plate (17); It is characterized in that: it also comprises slide block (8) and the linear slide unit (3) that is fixedly connected with worktable (1); Electromagnet to be measured (9) is placed and is fixed tightly on the slide block (8); And vertically being slidingly matched of slide block (8) property slide unit (3) along the line, said pull pressure sensor (2) is fixed on the worktable (1) of slide block (8) below, and the feeler lever (20) of pull pressure sensor (2) be positioned at electromagnet to be measured (9) armature under; Said displacement transducer (12) is fixedly connected on the linear slide unit (3), and the free end of the slide bar (13) of displacement transducer (12) is fixed on the slide block (8); It also comprises programmable logic controller (PLC) (15), data collecting card (14), current sensor (18) and industrial computer (16); Said programmable logic controller (PLC) (15) is electrically connected with the action button that electric-hydraulic proportion is amplified on plate (17) and the worktable (1) respectively, and described data collecting card (14) is electrically connected with displacement transducer (12), pull pressure sensor (2), current sensor (18), industrial computer (16) respectively.
2. valve control electromagnet performance automatic test device according to claim 1; It is characterized in that: said electromagnet to be measured (9) is placed and is fixed on the slide block (8); Be meant that the bottom of the lateral wall of said slide block (8) is provided with the panel (10) of a ccontaining electromagnet to be measured (9); Also be provided with support plate (7) on slide block (8) lateral wall of said panel (10) top; Said support plate (7) be provided with one be used to compress electromagnet to be measured (9) clamping cylinder (6), described clamping cylinder (6) is electrically connected with programmable logic controller (PLC) (15).
3. valve control electromagnet performance automatic test device according to claim 1; It is characterized in that: said slide block (8) is vertically being slidingly matched of property slide unit (3) along the line; The top that is meant said linear slide unit (3) is provided with a drive motor (4); The output shaft of said drive motor (4) connects a leading screw (11), and the madial wall of said slide block (8) is provided with the ball-screw nut (21) that matches with leading screw (11), and described drive motor (4) is electrically connected with programmable logic controller (PLC) (15).
4. valve control electromagnet performance automatic test device according to claim 2; It is characterized in that: the feeler lever (20) of said pull pressure sensor (2) be positioned at electromagnet to be measured (9) armature under; Be meant that said panel (10) is provided with the hole (19) that the feeler lever (20) that supplies pull pressure sensor (2) upwards compresses electromagnet to be measured (9) armature, the axis of the feeler lever (20) of said pull pressure sensor (2) and the axis of hole (19) are on same straight line.
5. valve control electromagnet performance automatic test device according to claim 3 is characterized in that: described drive motor (4) is a servomotor.
6. valve control electromagnet performance automatic test device according to claim 3; It is characterized in that: the output shaft of said drive motor (4) is fixedly connected with the top of leading screw (11) and is meant, the output shaft of said drive motor (4) is fixedly connected through shaft coupling (5) with the top of leading screw (11).
7. valve control electromagnet performance automatic test device according to claim 1 is characterized in that: described industrial computer (16) is connected with PRN device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102372994A CN101937033B (en) | 2010-07-23 | 2010-07-23 | Automatic testing device of performance of electromagnet for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102372994A CN101937033B (en) | 2010-07-23 | 2010-07-23 | Automatic testing device of performance of electromagnet for valve |
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| Publication Number | Publication Date |
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| CN101937033A CN101937033A (en) | 2011-01-05 |
| CN101937033B true CN101937033B (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102372994A Expired - Fee Related CN101937033B (en) | 2010-07-23 | 2010-07-23 | Automatic testing device of performance of electromagnet for valve |
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| CN (1) | CN101937033B (en) |
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| CN112649771A (en) * | 2020-12-25 | 2021-04-13 | 江南大学 | High-efficient testing arrangement of multi-functional proportional valve electromagnetic force |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243296A (en) * | 1990-11-06 | 1993-09-07 | Tokimec Inc. | Method and apparatus for checking operation of solenoid |
| CN201289411Y (en) * | 2008-10-30 | 2009-08-12 | 上海立新液压有限公司 | Apparatus for testing attracting force characteristic of electromagnetic valve electromagnet |
| CN201788240U (en) * | 2010-07-23 | 2011-04-06 | 宁波市鄞州通力液压电器厂 | Automatic tester for performance of valve electromagnet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1297526C (en) * | 1989-06-01 | 1992-03-17 | Eric D. Alden | Solenoid response detector |
-
2010
- 2010-07-23 CN CN2010102372994A patent/CN101937033B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243296A (en) * | 1990-11-06 | 1993-09-07 | Tokimec Inc. | Method and apparatus for checking operation of solenoid |
| CN201289411Y (en) * | 2008-10-30 | 2009-08-12 | 上海立新液压有限公司 | Apparatus for testing attracting force characteristic of electromagnetic valve electromagnet |
| CN201788240U (en) * | 2010-07-23 | 2011-04-06 | 宁波市鄞州通力液压电器厂 | Automatic tester for performance of valve electromagnet |
Non-Patent Citations (3)
| Title |
|---|
| JP平3-13872A 1991.01.22 |
| 李勇 等.电磁铁力特性测试***的研究.《传感技术学报》.2007,第20卷(第10期),第2353-2356页. * |
| 薛蕾 等.比例电磁铁性能测试***的研制.《机电工程》.2009,第26卷(第2期),第67-69页. * |
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