CN103017961B - Brush contact force tester - Google Patents
Brush contact force tester Download PDFInfo
- Publication number
- CN103017961B CN103017961B CN201210496221.3A CN201210496221A CN103017961B CN 103017961 B CN103017961 B CN 103017961B CN 201210496221 A CN201210496221 A CN 201210496221A CN 103017961 B CN103017961 B CN 103017961B
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- China
- Prior art keywords
- stepping motor
- slide
- supporting seat
- linear stepping
- round tube
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Abstract
The invention discloses a brush contact force tester which comprises a hook (1), and also comprises a direct current power supply (2), an electric signal amplification circuit (3), a Nixie tube display module (4), a stepping motor driver (5), a tension sensor (6), a controlled switch (7), a linear stepping motor (8), a sliding seat (9), an optical shaft (10) and a support seat (11). When the contact force tester works, am external forward signal instructs a rotating shaft of the linear stepping motor (8) to forward to drive the sliding seat (9) to lift the tension sensor (6) and the hook (1), and when the hook (1) instantly separates a brush from a rotor, the controlled switch (7) cuts off the power supply of the stepping motor driver (5) to ensure that the brush is maintained in a separation position, and the Nixie tube display module (4) displays a position force value. According to the invention, the force when the brush is separated from the rotor is measured by using the tension sensor, the precision requirement of measuring the contact force of the brush is met, the once successful measurement is ensured and the fatigue is relieved.
Description
Technical field
The present invention relates to a kind of contact force tester, particularly a kind of brush contact force tester.
Background technology
Current contact force tester comprises: spring balance and " L " shaped steel wire hook, " L " shaped steel wire hook is fixed on spring balance lower end, utilize " L " shaped steel wire hook to catch on brush, then measure the power value of brush and the rotor time of releasing by operator's Portable spring steelyard.Although this tester can carry out contact force measurement, need to lean on naked eyes to differentiate brush and rotor, and rely on manual operation spring balance, measuring accuracy is extremely low, measures success ratio not high, and operator is easy to fatigue.
Summary of the invention
The object of the present invention is to provide a kind of brush contact force tester, solve current contact force tester measuring accuracy low, measure not high, the operator of success ratio and hold fatigable problem.
A kind of brush contact force tester, comprising: hook, also comprises: direct supply, amplification circuit of electrical signal, charactron display module, stepper motor driver, pulling force sensor, controlled switch, linear stepping motor, slide, optical axis, supporting seat.
Slide is rectangular parallelepiped, and the lower surface of slide has three holes, and the center of slide is tapped blind hole, and the symmetria bilateralis of tapped blind hole is distributed with tapped through hole and round tube hole.The lower horizontal plate of supporting seat has three round tube holes, and the position of three round tube holes is corresponding with three hole sites of slide lower surface, and the upper horizontal plate of supporting seat has two round tube holes, and position is corresponding with two round tube hole positions of supporting seat lower horizontal plate both sides.Optical axis is through the round tube hole of slide, and coordinates with slide linear bearing, and the upper end of optical axis is placed in the round tube hole of supporting seat upper horizontal plate, and the lower end of optical axis is placed in the round tube hole of supporting seat lower horizontal plate, and the two ends of optical axis and supporting seat are rigidly connected.Linear stepping motor is placed on the leveling board above supporting seat and screw thread is fixed, the rotating shaft of linear stepping motor is through the round tube hole of supporting seat upper horizontal plate, the tapped through hole of slide, the round tube hole of supporting seat lower horizontal plate, the rotating shaft of linear stepping motor and slide threaded engagement, rotating shaft end and the supporting seat bearing of linear stepping motor are fixed.The screw rod of pulling force sensor upper end is through after the center circle through hole of supporting seat lower horizontal plate, and the tapped blind hole the screw thread that are placed in slide are fixed.Hook is connected with the screw flight of pulling force sensor lower end.
The output terminal of direct supply is connected with the power input of amplification circuit of electrical signal, the power input of controlled switch respectively.The power output end of controlled switch is connected with the power input of stepper motor driver, and the output terminal of stepper motor driver is connected with linear stepping motor input end, and the port of tested brush is connected with the control end of controlled switch.The output terminal of pulling force sensor is connected with the electric signal input end of amplification circuit of electrical signal, and the demonstration output terminal of amplification circuit of electrical signal is connected with the input end of charactron display module.
When the work of contact force tester, optical axis and linear stepping motor are fixed on transfixion on supporting seat, the rotating shaft forward rotation of outside forward rotation signal instruction stepper motor driver control linear stepping motor, under the threaded engagement between linear stepping motor rotating shaft and slide, the rotating shaft of linear stepping motor moves upward driving slide along optical axis, and then pulling force sensor and hook move up with slide, hook will trigger brush gradually, in brush and the rotor time of releasing, controlled switch power supply is cut off at once, controlled switch action, cut off being connected between direct supply and stepper motor driver, linear stepping motor is stopped operating, on stopping, moving hook, brush will maintain separation point position.Now, pulling force sensor sends electric signal to amplification circuit of electrical signal, after amplification circuit of electrical signal calculation process, shows by charactron display module.Outer counter rotates backward to the rotating shaft of turn signal instruction step motor driver control linear stepping motor, drive slide to move downward along optical axis, Action of Gravity Field lower pulling force sensor and hook move down, until hook stops outer counter to turn signal, brush return to primitive age position after separating with brush.
The present invention utilizes brush whether to separate with rotor and controls controlled switch action, reach the object of controlling pulling force sensor, can accurately find brush and rotor burble point, utilize pulling force sensor to realize accurately measures simultaneously, and automatic display measurement data, can meet the requirement of brush contact force measuring accuracy, also can guarantee to measure once success, and alleviate operator's fatigue.
Brief description of the drawings
The electrical block diagram of a kind of brush contact force of Fig. 1 tester;
The physical construction front view of a kind of brush contact force of Fig. 2 tester;
The physical construction left view of a kind of brush contact force of Fig. 3 tester.
1. hook 2. direct supply 3. amplification circuit of electrical signal 4. charactron display module 5. stepper motor driver 6. pulling force sensor 7. controlled switch 8. linear stepping motor 9. slide 10. optical axis 11. supporting seats.
Embodiment
A kind of brush contact force tester, comprise: hook 1, also comprises: direct supply 2, amplification circuit of electrical signal 3, charactron display module 4, stepper motor driver 5, pulling force sensor 6, controlled switch 7, linear stepping motor 8, slide 9, optical axis 10, supporting seat 11.
Slide 9 is rectangular parallelepiped, has three holes at the lower surface of slide 9, and the center of slide 9 is tapped blind hole, and the symmetria bilateralis of tapped blind hole is distributed with tapped through hole and round tube hole.The lower horizontal plate of supporting seat 11 has three round tube holes, the position of three round tube holes is corresponding with three hole sites of slide 9 lower surfaces, the upper horizontal plate of supporting seat 11 has two round tube holes, and the axis of two round tube holes is coaxial with two round tube holes of supporting seat 11 lower horizontal plate both sides.Optical axis 10 is through the round tube hole of slide 9, and coordinate with slide 9 linear bearings, the upper end of optical axis 10 is placed in the round tube hole of supporting seat 11 upper horizontal plates, and the lower end of optical axis 10 is placed in the round tube hole of supporting seat 11 lower horizontal plates, and the two ends of optical axis 10 and supporting seat 11 are rigidly connected.Linear stepping motor 8 is placed on the leveling board of supporting seat 11 tops and screw thread is fixed, the rotating shaft of linear stepping motor 8 is through the round tube hole of supporting seat 11 upper horizontal plates, the tapped through hole of slide 9, the round tube hole of supporting seat 11 lower horizontal plates, the rotating shaft of linear stepping motor 8 and slide 9 threaded engagement, the rotating shaft end of linear stepping motor 8 and supporting seat 11 bearings are fixed.The screw rod of pulling force sensor 6 upper ends is through after the center circle through hole of supporting seat 11 lower horizontal plates, and the tapped blind hole the screw thread that are placed in slide 9 are fixed.Hook 1 is connected with the screw flight of pulling force sensor 6 lower ends.The output terminal of direct supply 2 is connected with the power input of amplification circuit of electrical signal 3, the power input of controlled switch 7 respectively.The power output end of controlled switch 7 is connected with the power input of stepper motor driver 5, and the output terminal of stepper motor driver 5 is connected with linear stepping motor 8 input ends, and the port of tested brush is connected with the control end of controlled switch 7.The output terminal of pulling force sensor 6 is connected with the electric signal input end of amplification circuit of electrical signal 3, and the demonstration output terminal of amplification circuit of electrical signal 3 is connected with the input end of charactron display module 4.
When the work of contact force tester, optical axis 10 is fixed on transfixion on supporting seat 11 with linear stepping motor 8, outside forward rotation signal instruction stepper motor driver 5 is controlled the rotating shaft forward rotation of linear stepping motor 8, under the threaded engagement between rotating shaft and the slide 9 of linear stepping motor 8, the rotating shaft of linear stepping motor 8 moves upward driving slide 9 along optical axis 10, and then pulling force sensor 6 and hook 1 move up with slide 9, hook 1 will trigger brush gradually, in brush and the rotor time of releasing, the power supply of controlled switch 7 is cut off at once, controlled switch 7 moves, cut off being connected between direct supply 2 and stepper motor driver 5, linear stepping motor 8 is stopped operating.Now, pulling force sensor 6 sends electric signal to amplification circuit of electrical signal 3, after amplification circuit of electrical signal 3 calculation process, shows by charactron display module 4.The rotating shaft that outer counter is controlled linear stepping motor 8 to turn signal instruction step motor driver 5 rotates backward, the rotating shaft of linear stepping motor 8 drives slide 9 to move downward along optical axis 10, pulling force sensor 6 and hook 1 are moved down, until charactron display module 4 show null value after disconnecting external rotate backward signal, brush return to primitive age position.
Claims (1)
1. a brush contact force tester, comprise: hook (1), characterized by further comprising: direct supply (2), amplification circuit of electrical signal (3), charactron display module (4), stepper motor driver (5), pulling force sensor (6), controlled switch (7), linear stepping motor (8), slide (9), optical axis (10) and supporting seat (11);
Slide (9) is rectangular parallelepiped, has three holes at the lower surface of slide (9), and the center of slide (9) is tapped blind hole, and the symmetria bilateralis of tapped blind hole is distributed with tapped through hole and round tube hole; The lower horizontal plate of supporting seat (11) has three round tube holes, the position of three round tube holes is corresponding with three hole sites of slide (9) lower surface, the upper horizontal plate of supporting seat (11) has two round tube holes, and the axis of two round tube holes is coaxial with two round tube holes of supporting seat (11) lower horizontal plate both sides; Optical axis (10) is through the round tube hole of slide (9), and coordinate with slide (9) linear bearing, the upper end of optical axis (10) is placed in the round tube hole of supporting seat (11) upper horizontal plate, the lower end of optical axis (10) is placed in the round tube hole of supporting seat (11) lower horizontal plate, and the two ends of optical axis (10) and supporting seat (11) are rigidly connected; Linear stepping motor (8) is placed on the leveling board above supporting seat (11) and screw thread is fixed, the rotating shaft of linear stepping motor (8) is through the round tube hole of supporting seat (11) upper horizontal plate, the tapped through hole of slide (9), the round tube hole of supporting seat (11) lower horizontal plate, the rotating shaft of linear stepping motor (8) and slide (9) are by threaded engagement, and the rotating shaft end of linear stepping motor (8) and supporting seat (11) lower horizontal plate are fixed by bearing; The screw rod of pulling force sensor (6) upper end is through after the center circle through hole of supporting seat (11) lower horizontal plate, and the tapped blind hole the screw thread that are placed in slide (9) are fixed; Hook (1) is connected with the screw flight of pulling force sensor (6) lower end; The output terminal of direct supply (2) is connected with the power input of amplification circuit of electrical signal (3), the power input of controlled switch (7) respectively; The power output end of controlled switch (7) is connected with the power input of stepper motor driver (5), the output terminal of stepper motor driver (5) is connected with linear stepping motor (8) input end, and the port of tested brush is connected with the control end of controlled switch (7); The output terminal of pulling force sensor (6) is connected with the electric signal input end of amplification circuit of electrical signal (3), and the demonstration output terminal of amplification circuit of electrical signal (3) is connected with the input end of charactron display module (4);
When the work of contact force tester, optical axis (10) is fixed on the upper transfixion of supporting seat (11) with linear stepping motor (8), outside forward rotation signal instruction stepper motor driver (5) is controlled the rotating shaft forward rotation of linear stepping motor (8), under the threaded engagement between rotating shaft and the slide (9) of linear stepping motor (8), the rotating shaft of linear stepping motor (8) will drive slide (9) to move upward along optical axis (10), and then pulling force sensor (6) and hook (1) move up with slide (9), hook (1) will trigger brush gradually, in brush and the rotor time of releasing, the power supply of controlled switch (7) is cut off at once, controlled switch (7) action, cut off being connected between direct supply (2) and stepper motor driver (5), linear stepping motor (8) is stopped operating, now, pulling force sensor (6) sends electric signal to amplification circuit of electrical signal (3), after amplification circuit of electrical signal (3) calculation process, shows by charactron display module (4), the rotating shaft that outer counter is controlled linear stepping motor (8) to turn signal instruction step motor driver (5) rotates backward, the rotating shaft of linear stepping motor (8) drives slide (9) to move downward along optical axis (10), pulling force sensor (6) and hook (1) are moved down, until disconnecting external rotates backward signal, brush return to primitive age position after charactron display module (4) demonstration null value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496221.3A CN103017961B (en) | 2012-11-29 | 2012-11-29 | Brush contact force tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496221.3A CN103017961B (en) | 2012-11-29 | 2012-11-29 | Brush contact force tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103017961A CN103017961A (en) | 2013-04-03 |
| CN103017961B true CN103017961B (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210496221.3A Expired - Fee Related CN103017961B (en) | 2012-11-29 | 2012-11-29 | Brush contact force tester |
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| Country | Link |
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| CN (1) | CN103017961B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018014146A1 (en) * | 2016-07-19 | 2018-01-25 | 张树民 | Intelligent control system and control method for operation of brushes |
| CN108827516B (en) * | 2018-08-08 | 2020-10-13 | 西北工业大学 | Brush pressure testing arrangement of small components and parts |
| CN110806282B (en) * | 2019-10-27 | 2021-08-06 | 国营四达机械制造公司 | Motor brush spring pressure test fixing device and method |
| CN112964399B (en) * | 2021-04-05 | 2022-07-29 | 西北工业大学 | Full-automatic tester and testing method for contact pressure of metal wire/spring piece of electronic device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202305079U (en) * | 2011-10-17 | 2012-07-04 | 华尔斯（汕头）电气有限公司 | Contact pressure force measuring machine of high-voltage switch cabinet |
| KR20120126837A (en) * | 2011-05-13 | 2012-11-21 | 삼성중공업 주식회사 | Force measuring apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5465114B2 (en) * | 2010-07-08 | 2014-04-09 | 東芝三菱電機産業システム株式会社 | Brush pressure measuring device |
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2012
- 2012-11-29 CN CN201210496221.3A patent/CN103017961B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120126837A (en) * | 2011-05-13 | 2012-11-21 | 삼성중공업 주식회사 | Force measuring apparatus |
| CN202305079U (en) * | 2011-10-17 | 2012-07-04 | 华尔斯（汕头）电气有限公司 | Contact pressure force measuring machine of high-voltage switch cabinet |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2012-18085A 2012.01.26 |
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| Publication number | Publication date |
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| CN103017961A (en) | 2013-04-03 |
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Granted publication date: 20140723 Termination date: 20161129 |