CN202110060U - Portable elevator speed limiter testing device - Google Patents
Portable elevator speed limiter testing device Download PDFInfo
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- CN202110060U CN202110060U CN2011201951491U CN201120195149U CN202110060U CN 202110060 U CN202110060 U CN 202110060U CN 2011201951491 U CN2011201951491 U CN 2011201951491U CN 201120195149 U CN201120195149 U CN 201120195149U CN 202110060 U CN202110060 U CN 202110060U
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- 238000013461 design Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 22
- 238000005259 measurement Methods 0.000 description 7
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- 238000009434 installation Methods 0.000 description 4
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- 238000007689 inspection Methods 0.000 description 3
- 230000004043 responsiveness Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
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Abstract
The utility model relates to a portable elevator speed limiter testing device which comprises a motor assembly, a driving wheel and a power supply system. The motor assembly comprises an AC (alternating current) servo motor and a testing control system, and the AC servo motor is electrically connected with the testing control system which comprises a single chip microprocessor, a display system, an input system, a Hall proximity switch, a steel magnet and an electric switch; the display system, the input system, the Hall proximity switch and the electric switch are all electrically connected with the single chip microprocessor, and the Hall proximity switch is matched with the steel magnet; the driving wheel is connected with the motor assembly; and the power supply system is connected with the motor assembly. The portable elevator speed limiter testing device has reasonable structure and design, is simple and rapid in operation, and has high efficiency and good effect.
Description
Technical field
The utility model relates to a kind of portable elevator speed limiter pick-up unit and to the detection method of elevator governor.
Background technology
Modern society is bringing into play more and more important effect as the elevator of vertical transportation instrument in people's work and life, its security also receives publicity further.Elevator governor is the safety guarantee parts of the most critical in the manned loading elevator; Its principle of work is when elevator fortuitous event occurs and glides at a high speed; In case car speed reaches the maximal value that limiter of speed is set; Limiter of speed just drives the safety tongs action and makes elevator stopping or deceleration, thereby guarantees security of operation, avoids accident to take place.Therefore, the detection of elevator governor is important Interventions Requested that concern passenger and cargo security on the elevator.State General Administration for Quality Supervision's " elevator supervision and inspection and periodic inspection rule---traction and forcibly driving elevator " regulation; Life cycle reaches limiter of speed 2 years, that the responsiveness appearance is unusual or that each regulator site envelope note is damaged, and its responsiveness answers conformance with standard to stipulate.To the detection of elevator governor, be exactly through to the geometric parameter of limiter of speed and the measurement and the processing of operational factor, judge whether limiter of speed is qualified.
The detection mode of elevator governor has two kinds: dismounting censorship and check to the doorstep.Because limiter of speed dismounting censorship is wasted time and energy, dismounting simultaneously and transportation also are prone to limiter of speed is damaged, and influence its responsiveness, therefore, for some special occasions, like hospital, residential quarters etc., generally need the proofer to detect to the doorstep.Along with increasing of skyscraper, the elevator governor quantity that needs every year to detect to the doorstep increases severely.Though the at present domestic equipment that is used for detecting elevator governor is more, most apparatus structures are heavy, and complex structure is not easy to carry, and is mainly used in the factory inspection of elevator governor.The existing portable speed limiter detector of check to the doorstep that is used for, the detection part difficult installation, connector is many between the parts; Need many people to cooperate during detection, every detection once all need be imported a plurality of parameters, complex operation; Efficient is low; Precision is not high simultaneously, and the reliability of instrument is also poor, the more and more difficult actual detected needs that satisfy limiter of speed.
The applying date is to be the disposal route that on September 30th, 2009, Granted publication number discloses a kind of portable elevator speed limiter testing device and acquired signal thereof for the Chinese patent of CN100545620C March 31, Granted publication day in 2006.This method of testing is based on a cover proving installation, and this device mainly is made up of three parts: first parts are photoelectric encoders that have fifth wheel, and fifth wheel is pressed on the outer rim of limiter of speed wheel disc, follow the limiter of speed wheel disc and rotate together; Second parts is direct current generators of band twin shaft output, fixing driving wheel on the output shaft of an end, and this driving wheel is pressed on the outer rim of limiter of speed wheel disc, and a photoelectric code disk is installed on the output shaft of the other end; The 3rd parts are single-chip microcomputer signal processing units.Method of testing is: adopt the limiter of speed wheel disc linear velocity of reception of single-chip microcomputer signal processing unit and the output of processing photoelectric encoder and do real-time demonstration; Reception is by the feedback speed signal that is used for motor PID closed-loop control of photoelectric code disk output, through pressure regulation, the speed-regulating signal of single-chip computer control system to rectification driver module output DC machine.
In actual the use, there is following problem in above-mentioned proving installation:
1, used unit is many, and stube cable is many, and connector is many, plugs time-consumingly, and joint is perishable, and device reliability is poor.
2, the photoelectric encoder of band fifth wheel relies on the support of console mode, and difficulty is put at the scene, can not be reliably keeps in touch with the outer rim of limiter of speed wheel disc, and when limiter of speed wheel disc high speed rotating, photoelectric encoder tests the speed inaccurate.
3, during the drive motor mounting cost, the dual-axle motor of band driving wheel is because include transformer and rectification driver module, and volume is big, and Heavy Weight is adjusted good contact that nut on the tripod can not guarantee driving wheel and limiter of speed wheel disc outer rim well; Because it is driving wheel is columniform, little simultaneously with the friction force of limiter of speed wheel disc outer rim, skid easily, cause the linear velocity of driving wheel can not pass to the limiter of speed wheel disc exactly.
4, detecting the scene, the inconvenience of limiter of speed wheel disc pitch circumference is measured.
5, adopt charactron to show that quantity of information is few, and is not directly perceived.
The utility model content
The purpose of the utility model is to overcome the above-mentioned deficiency that exists in the prior art, and a kind of reasonable in design is provided, portable elevator speed limiter pick-up unit that the simple and fast that operates, efficient are high, effective and to the detection method of elevator governor.
The utility model addresses the above problem the technical scheme that is adopted: a kind of portable elevator speed limiter pick-up unit is characterized in that: comprise motor assembly, driving wheel, power-supply system;
Motor assembly comprises AC servo motor and TT&C system, and AC servo motor and TT&C system are electrically connected; Described TT&C system comprises that single-chip microcomputer, display system, input system, Hall-type are near switch, magnet steel, electric switch; Display system, input system, Hall-type all are electrically connected with single-chip microcomputer near switch, electric switch, and Hall-type cooperates with magnet steel near switch;
Driving wheel is connected with motor assembly;
Power-supply system is connected with motor assembly.
The described display system of the utility model comprises LCD display control chip and LCD display, and the LCD display control chip is electrically connected with single-chip microcomputer and LCD display respectively.
The described input system of the utility model comprises keyboard system, and keyboard system comprises keyboard and corresponding matrix keyboard managing chip, and keyboard system is electrically connected with single-chip microcomputer.
The utility model also comprises storer, and storer is electrically connected with single-chip microcomputer.
The utility model compared with prior art has the following advantages and effect:
1, the utility model device is under the prerequisite that guarantees the elevator governor measuring accuracy; Be easy to carry advantages such as having that volume is little, in light weight, parts are few, stube cable is few, connector is few, be suitable for on-the-spotly detecting, parameter measurement is convenient, display message is directly perceived, do not lose after the parameter power down.
2, the utility model method is under the prerequisite that satisfies the elevator governor accuracy of detection, the simple and fast that operates, and checkability significantly improves.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment portable elevator speed limiter pick-up unit.
Fig. 2 is the structural representation of the utility model embodiment TT&C system.
Embodiment
Below in conjunction with accompanying drawing and through embodiment the utility model is done further to specify, following examples are to the explanation of the utility model and the utility model is not limited to following examples.
Embodiment:
Referring to Fig. 1 and Fig. 2, the portable elevator speed limiter pick-up unit comprises motor assembly 6, and its inside comprises AC servo motor 13 and TT&C system.
TT&C system comprises that eight single-chip microcomputer 15, non-volatile storer 16, display system, input system, Hall-type are near switch 11, magnet steel 10, electric switch 21.
Single-chip microcomputer 15 models are AT89S52.
Display system comprises LCD display control chip 17 and LCD display 4, and LCD display control chip 17 is electrically connected with single-chip microcomputer 15 and LCD display 4 respectively, and promptly display system is electrically connected with single-chip microcomputer 15.LCD display control chip 17 models are T6963C.
Input system comprises keyboard system 5, and keyboard system 5 comprises keyboard and corresponding matrix keyboard managing chip 18.Keyboard system 5 is electrically connected with single-chip microcomputer 15, and promptly input system is electrically connected with single-chip microcomputer 15.
Hall-type is electrically connected with single-chip microcomputer 15 near switch 11, and cooperates with magnet steel 10.
TT&C system also comprises reset circuit 19, crystal oscillating circuit 20, motor servo driver 14, and reset circuit 19, crystal oscillating circuit 20, motor servo driver 14 are electrically connected with single-chip microcomputer 15 respectively.
AC servo motor 13 is connected with single-chip microcomputer 15 through motor servo driver 14.
The leading flank of motor assembly 6 is provided with handle 12; The operator can hold handle 12 with left hand; Four of the right hand palm refers to hold up the bottom of motor assemblies 6, lets rubber drive wheels 2 ride in the steel wire rope groove that leans against limiter of speed wheel disc 1, the button in the right-handed thumb operation keyboard system 5.
Power transfer module 8 is connected with motor assembly 6 through power supply output cable 7; WV (comprising the WV of SCM system and the WV of servomotor) is provided for motor assembly 6, power transfer module 8 is electrically connected with the city through power supply input cable 9.
The utility model adopts the portable elevator speed limiter pick-up unit to total body detecting method of elevator governor to be:
With AC servo motor of SCM system control, drive a driving wheel generation according to the acceleration of setting and rotatablely move, the wheel disc that this driving wheel drives tested elevator governor again is rotated, and makes the linear velocity of limiter of speed wheel disc pitch circle rise gradually; Utilize said single-chip microcomputer to receive the pulse signal of a magnet steel that is adsorbed on limiter of speed wheel disc end face, can calculate the linear velocity of limiter of speed wheel disc pitch circle in conjunction with the pitch diameter of limiter of speed wheel disc through a Hall switch.When the Single-chip Controlling AC servo motor constantly quickened, the rotating speed of limiter of speed wheel disc was increasingly high, final limiter of speed spacing action because of centrifugal action produces, and wheel disc is stuck, and single-chip microcomputer just locks the limiter of speed action linear velocity of moment.
The utility model adopts the portable elevator speed limiter pick-up unit specific as follows to the detection method of elevator governor:
A, power supply is imported cable 9 insert the 220V civil powers, the LCD display 4 of display system shows " please import pitch diameter ".
The pitch diameter of b, measurement limiter of speed wheel disc 1, the centre distance that can pass through the wire rope of measurement limiter of speed wheel disc 1 side-by-side mounting obtains.On keyboard system 5, select numerical key input this diameter (unit is mm), check errorless after, by " affirmation " key, the LCD demonstration becomes " please import initial velocity ".Keyboard system 5 sends the pitch diameter information of limiter of speed wheel disc 1 to single-chip microcomputer 15.
C, on keyboard system 5, select numerical key input initial velocity, be changed to the rated speed of seized elevator usually, unit is m/s; Check errorless after, by " affirmations " key, the LCD demonstration becomes " please select motor steering ".Keyboard system 5 sends the initial velocity information of input to single-chip microcomputer 15.
D, on keyboard system 5, select the motor sense of rotation (in the face of driving wheel 2 by " left side " or " right side " key; " left side " expression clockwise, " right side " expression is counterclockwise), check errorless after; By " affirmation " key, the LCD demonstration becomes " pressing ' detection ' key after magnet steel is installed ".
E, on the end face of limiter of speed wheel disc 1 right side near outer rim, suct magnet steel 10, the N utmost point that guarantees magnet steel 10 up,
And making when limiter of speed wheel disc 1 rotates a circle that magnet steel 10 has and when for once aiming at Hall-type near switch 11, magnet steel 10 does not need to contact near switch 11 with Hall-type, distance is about 5-10mm.
On limiter of speed wheel bracket 22, connect the electric switch 21 that absorption has striker through magnetic, electric switch 21 be positioned at limiter of speed get rid of piece near, get rid of on the mobile route that piece takes place because of centrifugal action at limiter of speed.When limiter of speed got rid of piece and runs into the striker on the electric switch because of centrifugal action, electric switch 21 produced action.
F, left hand are held the handle 12 on the motor assembly 6, and four of the right hand palm refers to hold up the bottom of motor assembly 6, lets driving wheel 2 be pressed in the steel wire rope groove of limiter of speed wheel disc 1, and right-handed thumb taps " detection " key on the keyboard system 5.Motor assembly 6 just drives driving wheel 2 through driving shaft 3 and begins rotation with the direction of setting, and simultaneously, driving wheel 2 drives limiter of speed wheel disc 1 again and rotates.Single-chip microcomputer 15 according in the motor assembly 6 sets, and the linear velocity of limiter of speed wheel disc 1 pitch circle is raised to the initial velocity that step c sets fast from zero within 3 seconds, and at the uniform velocity keeps 7 seconds.
During this period, LCD display 4 shows " examination degree of testing the speed XXXX ", the actual linear velocity of limiter of speed wheel disc 1 pitch circle that " XXXX " expression is here detected in 10 seconds afterwards by " detections " key.The formula of linear velocity is V=π D/t; D is the pitch diameter of limiter of speed wheel disc 1 in the formula; T obtains like this: according to the characteristic of Hall-type near switch 11, magnet steel 10 is when aiming at Hall-type near switch 11 1 times, and Hall-type will receive a time pulse signal near switch 11; Hall-type is transferred to single-chip microcomputer 15 near switch 11 with this time pulse signal, time point of single-chip microcomputer 15 records; After limiter of speed wheel disc 1 rotates a week; Magnet steel 10 is aimed at Hall-type again near switch 11; Hall-type receives a time pulse signal again near switch 11, and Hall-type is transferred to single-chip microcomputer 15 with this time pulse signal again near switch 11, and single-chip microcomputer 15 writes down a time point again; Single-chip microcomputer 15 calculates the time difference of two time points, and this difference is limiter of speed wheel disc 1 and rotates the time t that a week needs.Single-chip microcomputer 15 calculates actual linear velocity according to the formula of linear velocity again, and shows through LCD display 4.
Compare the initial velocity of actual linear velocity and step c input, both should be basic identical.If have big difference, explain that detecting the loop has problem, " time-outs " key in the keypad system 5 then, driving wheel 2 stops immediately, and LCD display 4 shows " as if continuing please by ' detection ' key ", begins detection from step f again after the problem to be solved.
G, examination survey process continued after 10 seconds, and LCD shows and become " beginning to quicken XXXX " that under the control of motor assembly 6, the linear velocity of limiter of speed wheel disc 1 pitch circle is with 0.01m/s
2Acceleration slowly rise.As time goes on; The rotating speed of limiter of speed wheel disc 1 is more and more faster; The piece that gets rid of on the final limiter of speed wheel disc 1 is run into the striker on the electric switch because of centrifugal action, makes the electric switch 21 that is adsorbed on the limiter of speed wheel bracket 22 produce action, and electric switch 21 passes to single-chip microcomputer 15 with switching signal; Single-chip microcomputer just locks the actual linear velocity of limiter of speed wheel disc 1 pitch circle this moment, and this speed is the electrical action velocity amplitude of limiter of speed.Limiter of speed wheel disc 1 continues to quicken rotation; Be stuck until limiter of speed wheel disc 1; Single-chip microcomputer 15 cooperates the time pulse signal that produces through magnet steel 10 and Hall-type near switch 11, detects the 1 unexpected stall of limiter of speed wheel disc, and single-chip microcomputer locks the pitch circle maximum actual linear velocity of limiter of speed wheel disc 1 before being stuck once more; This speed is the mechanical action velocity amplitude of limiter of speed, simultaneously 2 stalls immediately of motor assembly 6 controlling and driving wheel; LCD display 4 shows " electrical action speed XXXX " and " mechanical action speed XXXX " in turn, and these two speed are kept in the storer 16 in the motor assembly 6 simultaneously, do not lose after the power down, and the operator also can be recorded in this velocity amplitude in the examining report.These two actual linear velocity values are measurement result.Single-chip microcomputer 15 detects the method for limiter of speed wheel disc 1 unexpected stall near the time pulse signal of switch 11 through magnet steel 10 and Hall-type; Can be as described above; When magnet steel 10 is adjacent when aiming at Hall-types for twice and surpassing the value of appraising and deciding near time interval of switch 11; The 1 unexpected stall of decidable limiter of speed wheel disc, this value of appraising and deciding can be set in single-chip microcomputer 15 in advance.
If will repeat repeated detection to a limiter of speed; When LCD display 4 shows " electrical action speed XXXX " and " mechanical action speed XXXX " in turn; Click " detection " key and can get back to step f; Needn't begin the existing storage of pitch diameter, initial velocity and rotating information (not losing after the power down) again from step a.
In the whole process of step f, if want to stop detecting, " resetting " key in the keypad system 5 is got back to step a at any time at step a, and driving wheel 2 stops the rotation simultaneously.
When step a begins; Pitch diameter, initial velocity and three parameters of rotating information; If do not want to import new value; Can press " detection " key and directly get into step f, the single-chip microcomputer in the motor assembly 6 promptly calls original numerical value of preserving in the nonvolatile memory, realizes high efficiency one-touch detection.
Compared with present technology, the utility model beneficial effect is embodied in:
1, the utility model device is under the prerequisite that guarantees the elevator governor measuring accuracy; Be easy to carry advantages such as having that volume is little, in light weight, parts are few, stube cable is few, connector is few, be suitable for execute-in-place, parameter measurement is convenient, display message is directly perceived, do not lose after the parameter power down.
2, the limiter of speed wheel disc pitch circle linear velocity of the utility model adopts contactless method to detect, the low problem of measuring accuracy of having avoided contact type measurement to skid and brought because of fifth wheel wearing and tearing and fifth wheel and limiter of speed race.
3, the utility model adopts the absorption type electric switch to measure the electrical action speed of limiter of speed, and is quick for installation, easy to detect.
4, the utility model only needs button once when the limiter of speed of duplicate detection same model, has greatly simplified operation steps, has improved detection efficiency.
5, the utility model method is under the prerequisite that satisfies the elevator governor accuracy of detection, the simple and fast that operates, and efficient is high.
Claims (4)
1. a portable elevator speed limiter pick-up unit is characterized in that: comprise motor assembly, driving wheel, power-supply system;
Motor assembly comprises AC servo motor and TT&C system, and AC servo motor and TT&C system are electrically connected; Described TT&C system comprises that single-chip microcomputer, display system, input system, Hall-type are near switch, magnet steel, electric switch; Display system, input system, Hall-type all are electrically connected with single-chip microcomputer near switch, electric switch, and Hall-type cooperates with magnet steel near switch;
Driving wheel is connected with motor assembly;
Power-supply system is connected with motor assembly.
2. portable elevator speed limiter pick-up unit according to claim 1 is characterized in that: described display system comprises LCD display control chip and LCD display, and the LCD display control chip is electrically connected with single-chip microcomputer and LCD display respectively.
3. portable elevator speed limiter pick-up unit according to claim 1 is characterized in that: described input system comprises keyboard system, and keyboard system comprises keyboard and corresponding matrix keyboard managing chip, and keyboard system is electrically connected with single-chip microcomputer.
4. portable elevator speed limiter pick-up unit according to claim 1 is characterized in that: also comprise storer, storer is electrically connected with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201951491U CN202110060U (en) | 2011-06-11 | 2011-06-11 | Portable elevator speed limiter testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201951491U CN202110060U (en) | 2011-06-11 | 2011-06-11 | Portable elevator speed limiter testing device |
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| Publication Number | Publication Date |
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| CN202110060U true CN202110060U (en) | 2012-01-11 |
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| CN2011201951491U Expired - Fee Related CN202110060U (en) | 2011-06-11 | 2011-06-11 | Portable elevator speed limiter testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331339A (en) * | 2011-06-11 | 2012-01-25 | 嘉兴市特种设备检测院 | Portable elevator speed limiter detection device and detection method for elevator speed limiter |
| CN102879198A (en) * | 2012-09-29 | 2013-01-16 | 广州日滨科技发展有限公司 | Speed limiter test table for elevator and testing system thereof |
| CN103983442A (en) * | 2014-05-21 | 2014-08-13 | 北京航空航天大学 | Mechanical type speed limiter testing device |
| CN112020474A (en) * | 2018-04-26 | 2020-12-01 | 利勃海尔工厂比伯拉赫股份有限公司 | Crane with a movable crane |
-
2011
- 2011-06-11 CN CN2011201951491U patent/CN202110060U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331339A (en) * | 2011-06-11 | 2012-01-25 | 嘉兴市特种设备检测院 | Portable elevator speed limiter detection device and detection method for elevator speed limiter |
| CN102331339B (en) * | 2011-06-11 | 2014-04-02 | 嘉兴市特种设备检测院 | Portable elevator speed limiter detection device and detection method for elevator speed limiter |
| CN102879198A (en) * | 2012-09-29 | 2013-01-16 | 广州日滨科技发展有限公司 | Speed limiter test table for elevator and testing system thereof |
| CN102879198B (en) * | 2012-09-29 | 2015-02-25 | 广州日滨科技发展有限公司 | Speed limiter test table for elevator and testing system thereof |
| CN103983442A (en) * | 2014-05-21 | 2014-08-13 | 北京航空航天大学 | Mechanical type speed limiter testing device |
| CN103983442B (en) * | 2014-05-21 | 2016-09-14 | 北京航空航天大学 | A kind of mechanical type speed limiter testing device |
| CN112020474A (en) * | 2018-04-26 | 2020-12-01 | 利勃海尔工厂比伯拉赫股份有限公司 | Crane with a movable crane |
| CN112020474B (en) * | 2018-04-26 | 2024-05-10 | 利勃海尔工厂比伯拉赫股份有限公司 | Crane with crane body |
| US12012312B2 (en) | 2018-04-26 | 2024-06-18 | Liebherr-Werk Biberach Gmbh | Crane |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20130611 |