CN208012789U - A kind of torque sensor measuring lift car load - Google Patents
A kind of torque sensor measuring lift car load Download PDFInfo
- Publication number
- CN208012789U CN208012789U CN201820278867.7U CN201820278867U CN208012789U CN 208012789 U CN208012789 U CN 208012789U CN 201820278867 U CN201820278867 U CN 201820278867U CN 208012789 U CN208012789 U CN 208012789U
- Authority
- CN
- China
- Prior art keywords
- signal
- elastic shaft
- brake
- lift car
- car load
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a kind of torque sensor measuring lift car load, and the sensor is arranged in the both sides of the transmission shaft of elevator brake, and is embedded in brake；The sensor includes two signal gears, elastic shaft, magnet steel and signal coil；Transmission shaft of the plane of the signal gear perpendicular to the elevator brake, the elastic shaft is located on the same line with the transmission shaft, the signal gear is located at the left and right sides of the elastic shaft, and the signal gear is rotated with the twisting of the transmission shaft；It is respectively provided with one group of signal coil above two signal gears, magnet steel is respectively arranged in the signal coil, magnetoelectricity signal generator is formed with the signal gear.A kind of torque sensor of measurement lift car load of the utility model exports change in electric identification elevator load by electromagnetic induction and changes starting current and brake control, elevator buying and operation cost are reduced while remaining operational stationarity.
Description
Technical field
The utility model belongs to safety means technical field, and in particular to a kind of torque sensing measuring lift car load
Device.
Background technology
Elevator drags the power-equipment for drawing that machine is elevator, also known as elevator host.Function is conveying makes elevator transport with passing power
Row.It by motor, brake, reduction box, drag running wheel and rack and attached handwheel etc. and form.
Existing quality of elevator Fundamentals of Sensors are under the effect of gravity, by carrier by weight transfer to weighing and sensing
Device makes Weighing sensor elastomer be deformed, the strain gauge bridge disequilibrium being attached on elastomer, output and weight number
It is worth directly proportional electric signal, linear amplifier amplifies signal, then is converted to digital signal through A/D, by the micro- of instrument
Reason machine (CPU) directly displays weight data after handling weight signal.It is pasted with and answers on the elastomer of weighing sensor
Become meter, forms Wheatstone bridge.When zero load, electric bridge is in equilibrium state, output zero.When elastomer bears load,
Each strain gauge results from the proportional strain of load therewith, can measure outer loading capacity by output voltage, pass through the communication of instrument
Interface can be connect with brake monitor.
Elevator Market competition now so that people are to performances such as the comfort levels, operation cost and energy consumption of lift product
Harsh requirement is proposed, elevator needs all to reach higher requirement in this several respect.Existing elevator is in order to improve starting performance
It is mounted with car mass sensor mostly, so that motor even running, and elevator dispatching information can be provided.However mass sensitivity
Device not only increases buying and the installation cost of elevator, and in order to ensure that its performance needs periodic maintenance and adjustment.This is into one
Step improves the operation cost of elevator, reduces the reliability of system.
Utility model content
The purpose of this utility model is to overcome deficiency in the prior art, a kind of lift car load that measures is provided
Torque sensor.
In order to achieve the above object, the utility model is achieved through the following technical solutions：
A kind of torque sensor measuring lift car load, which is characterized in that the sensor is arranged in elevator brake
The both sides of the transmission shaft of device, and be embedded in brake；The sensor includes two signal gears, elastic shaft, magnet steel and letter
Number coil；The plane of the signal gear is perpendicular to the transmission shaft of the elevator brake, the elastic shaft and the transmission shaft
It is located on the same line, the signal gear is located at the left and right sides of the elastic shaft and is fixed on the elastic shaft, institute
It states signal gear to fix with the transmission shaft, the signal gear is rotated with the twisting of the transmission shaft；Two letters
It is respectively provided with one group of signal coil above number gear, magnet steel is respectively arranged in the signal coil, is formed with the signal gear
Magnetoelectricity signal generator.
Preferred embodiment according to the present utility model, transmission shaft one end connection, which is dragged, draws motor, and the other end connects elevator
Jacking system.
Preferred embodiment according to the present utility model further includes two elastic shaft fixed seats, the elastic shaft fixed seating
In the both ends of the elastic shaft, the signal gear is fixed by screws in the elastic shaft fixed seat.
Preferred embodiment according to the present utility model, the brake include braked wheel, and the braked wheel is symmetrical by two panels
Brake(-holder) block fit closely, the two panels brake(-holder) block can clamp braking；The braked wheel is located among two signal gears,
And it is fixed with the signal gear.
Preferred embodiment according to the present utility model, the brake(-holder) block include hollow column part and clamp sticking part
Point, the clamping fitting part is extended outward by the fitting end of the column part, and is hung down with the axle center of the column part
Directly；The diameter of the column part is more than the diameter of the elastic shaft fixed seat.
Preferred embodiment according to the present utility model, the elastic shaft are made of spring steel, and spring steel can be in defined model
In enclosing, the ability of flexible deformation can bear certain load, not be permanently deformed after load removal.
Compared with prior art, a kind of torque sensor of measurement lift car load of the utility model has and has as follows
Beneficial effect：
(1) torque sensor of a kind of measurement lift car load of the utility model, telecommunications is exported by electromagnetic induction
Number variation identification elevator load and change starting current and brake control, to replace existing mass sensor, keep transport
Elevator buying and operation cost are reduced while row stationarity；
(2) electromagnetic signal is combined into design with brake disc, is integrated in the transmission shaft both sides of brake so that existing passage
Elevator drags that draw the layout that electromechanical machine-brake-reduction box-drags running wheel constant, does not have to redesign drive mechanism for sensor,
Cost is saved；
(3) mass sensor on car is changed into and is dragging the torque sensor drawn on machine, can accurately measured
The load variations of transmission shaft, and alleviate car mass；Test result shows acceleration when change in torque most significantly affects starting
Degree, and the measuring device of the utility model can efficiently identify elevator and drag the moment variations for drawing machine transmission shaft, prevent elevator from overloading
Operation, achievees the effect that security；
(4) moment variations that load on transmission shaft are monitored in by dragging in elevator and drawing machine operation process, in real time, and with braking
Device control system is in parallel, and form closed loop feedback signal prevents elevator because of quality once torque overload occur excites brake immediately
Overweight or system reason is overloaded, and motor overload operating is caused to burn out, and ensures lift running safety, and extension, which is dragged, draws machine use
Service life is suitable for multilayer and high rise elevator jacking system.
Description of the drawings
Fig. 1 be the utility model is related to the utility model a kind of measurement lift car load torque sensor knot
Structure schematic diagram.
Specific implementation mode
The utility model is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of torque sensor of measurement lift car load of the utility model, the sensor setting exists
The both sides of the transmission shaft 2 of elevator brake, and be embedded in brake, the connection of 2 one end of the transmission shaft, which is dragged, draws motor, the other end
Connect elevator lifting system；The sensor includes two signal gears 11, elastic shaft 12, magnet steel 13 and signal coil 14；Institute
Transmission shaft 2 of the plane perpendicular to the elevator brake of signal gear 11 is stated, the elastic shaft 12 is located at the transmission shaft 2
On same straight line, the signal gear 11 is located at the left and right sides of the elastic shaft 12 and is fixed on the elastic shaft 12,
The signal gear 11 is fixed with the transmission shaft 2, and the signal gear 11 is rotated with the twisting of the transmission shaft 2；Two
The top of a signal gear 11 is respectively provided with one group of signal coil 14, and magnet steel 13 is respectively arranged in the signal coil 14, with
The signal gear 11 forms magnetoelectricity signal generator.
As the preferred embodiment of the utility model, a kind of torque sensing of measurement lift car load of the utility model
Device, further includes two elastic shaft fixed seats 16, and the elastic shaft fixed seat 16 is located at the both ends of the elastic shaft 12, the signal
Gear 11 is fixed on by screw 15 in the elastic shaft fixed seat 16.The brake includes braked wheel 3, the braked wheel 3
It is fitted closely by the symmetrical brake(-holder) block of two panels 31, the two panels brake(-holder) block 31 can clamp braking；The braked wheel 3 is located at two
Among a signal gear 11, and fixed with the signal gear 11.The brake(-holder) block 31 includes hollow column part 311 and folder
Tight fitting part 312, the clamping fitting part 312 are extended outward by the fitting end of the column part 311, and with it is described
The axis perpendicular of column part 311；The diameter of the column part 311 is more than the diameter of the elastic shaft fixed seat 16.
As the preferred embodiment of the utility model, the elastic shaft 12 is made of spring steel, and spring steel can be defined
In range, the ability of flexible deformation can bear certain load, not be permanently deformed after load removal.
A kind of operation principle of the torque sensor of measurement lift car load of the utility model is as follows：
A kind of torque sensor of measurement lift car load of the utility model passes through elastic shaft 12 and two groups of magnetoelectricity letters
Number generator, is converted into tested torque, rotating speed have dephased two groups of ac signals, the frequency of this two groups of ac signals
The identical and rotating speed to axis of rate is directly proportional, and the changing unit of its phase difference is directly proportional to tested torque.When signal gear 11
When being rotated with elastic shaft 12, due to the tooth top of signal gear and tooth paddy alternating cyclical the bottom of inswept magnet steel 13, makes air gap
Magnetic conductance generates periodically variation, the magnetic flux of coil inside and also generates cyclically-varying, makes to generate in signal coil 14 close
Like the ac signal of sine wave.The identical and rotating speed to axis of the frequency of this two groups of ac signals is directly proportional, is used for surveying with this
Measure rotating speed.The size for 12 the transmitted torque of relative position and elastic shaft that phase between this two groups of ac signals is installed with it
And direction is related.When elastic shaft 12 is not turned round, the phase difference between two groups of ac signals and signal coil 14 and signal
The relative mounting positions of gear 11 are related, this phase difference is known as initial phase difference, when manufacturing and designing, it made to differ half tooth
Away from left and right, i.e. initial phase difference between two groups of ac signals is 90 degree or so.When elastic shaft 12 is turned round, torsion will be generated
Deformation, makes the phase difference between two groups of ac signals change, in regime of elastic deformation, the absolute value of phase difference variation
It is directly proportional to the size of torque.
The dedicated shielded cable of this two groups of ac signals is sent into microcomputer torque microcontroller, you can turned
The exact value of square, rotating speed and power transmits control brake by signal.The braked wheel 3 of the utility model design is by two panels system
Movable plate 31 fits closely, it is therefore an objective to which the torque for completely cutting off elastic shaft 12 is transmitted by braked wheel 3, while nor affecting on braked wheel
3 clamp braking.31 symmetric design of two panels brake(-holder) block so that 12 both sides of elastic shaft do not have excessive-torque in the clamping moment of braked wheel 3
Difference.
Compared with prior art, a kind of torque sensor of measurement lift car load of the utility model has and has as follows
Beneficial effect：
(1) torque sensor of a kind of measurement lift car load of the utility model, telecommunications is exported by electromagnetic induction
Number variation identification elevator load and change starting current and brake control, to replace existing mass sensor, keep transport
Elevator buying and operation cost are reduced while row stationarity；
(2) electromagnetic signal is combined into design with brake disc, is integrated in the transmission shaft both sides of brake so that existing passage
Elevator drags that draw the layout that electromechanical machine-brake-reduction box-drags running wheel constant, does not have to redesign drive mechanism for sensor,
Cost is saved；
(3) mass sensor on car is changed into and is dragging the torque sensor drawn on machine, can accurately measured
The load variations of transmission shaft, and alleviate car mass；Test result shows acceleration when change in torque most significantly affects starting
Degree, and the measuring device of the utility model can efficiently identify elevator and drag the moment variations for drawing machine transmission shaft, prevent elevator from overloading
Operation, achievees the effect that security；
(4) moment variations that load on transmission shaft are monitored in by dragging in elevator and drawing machine operation process, in real time, and with braking
Device control system is in parallel, and form closed loop feedback signal prevents elevator because of quality once torque overload occur excites brake immediately
Overweight or system reason is overloaded, and motor overload operating is caused to burn out, and ensures lift running safety, and extension, which is dragged, draws machine use
Service life is suitable for multilayer and high rise elevator jacking system.
The embodiments of the present invention are only used for illustrating the utility model, do not constitute to right
Limitation, other substantially equivalent replacements that those skilled in that art are contemplated that, in scope of protection of the utility model
It is interior.
Claims (6)
1. a kind of torque sensor measuring lift car load, which is characterized in that the sensor is arranged in elevator brake
Transmission shaft both sides, and be embedded in brake；The sensor includes two signal gears, elastic shaft, magnet steel and signal
Coil；The plane of the signal gear is perpendicular to the transmission shaft of the elevator brake, the elastic shaft and the transmission axle position
In on same straight line, the signal gear is located at the left and right sides of the elastic shaft and is fixed on the elastic shaft, described
Signal gear is fixed with the transmission shaft, and the signal gear is rotated with the twisting of the transmission shaft；Two signals
It is respectively provided with one group of signal coil above gear, magnet steel is respectively arranged in the signal coil, magnetic is formed with the signal gear
Electric signal generator.
2. a kind of torque sensor measuring lift car load according to claim 1, which is characterized in that the transmission
The connection of axis one end, which is dragged, draws motor, and the other end connects elevator lifting system.
3. a kind of torque sensor measuring lift car load according to claim 1, which is characterized in that further include two
A elastic shaft fixed seat, the elastic shaft fixed seating are fixed in the both ends of the elastic shaft, the signal gear by screw
In the elastic shaft fixed seat.
4. a kind of torque sensor measuring lift car load according to claim 3, which is characterized in that the braking
Device includes braked wheel, and the braked wheel is fitted closely by the symmetrical brake(-holder) block of two panels, and the two panels brake(-holder) block can clamp system
It is dynamic；The braked wheel is located among two signal gears, and is fixed with the signal gear.
5. a kind of torque sensor measuring lift car load according to claim 4, which is characterized in that the braking
Piece includes that hollow column part and clamping fitting part, the clamping fitting part are outside by the fitting end of the column part
Side extend, and with the axis perpendicular of the column part；The diameter of the column part is more than the straight of the elastic shaft fixed seat
Diameter.
6. a kind of torque sensor measuring lift car load according to claim 1, which is characterized in that the elasticity
Axis is made of spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820278867.7U CN208012789U (en) | 2018-02-27 | 2018-02-27 | A kind of torque sensor measuring lift car load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820278867.7U CN208012789U (en) | 2018-02-27 | 2018-02-27 | A kind of torque sensor measuring lift car load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208012789U true CN208012789U (en) | 2018-10-26 |
Family
ID=63887468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820278867.7U Expired - Fee Related CN208012789U (en) | 2018-02-27 | 2018-02-27 | A kind of torque sensor measuring lift car load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208012789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165838A (en) * | 2019-04-11 | 2019-08-23 | 广东省智能制造研究所 | A kind of moment of elasticity control device |
-
2018
- 2018-02-27 CN CN201820278867.7U patent/CN208012789U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165838A (en) * | 2019-04-11 | 2019-08-23 | 广东省智能制造研究所 | A kind of moment of elasticity control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100526195C (en) | Crane with lift weight measuring unit and method for determining crane lifting weight | |
| CN104359691B (en) | Rail truck power Wheel set detecting assay device | |
| CN110095218B (en) | Electromagnetic driving device for measuring friction torque of rolling bearing and measuring method thereof | |
| CN208012789U (en) | A kind of torque sensor measuring lift car load | |
| CN206955472U (en) | A kind of raising lift heavy weighs and control device | |
| CN208606914U (en) | The dynamometer of changeable range for the installation detection of wall-mounted equipment dependability | |
| US2974518A (en) | Method and apparatus of calibrating a belt conveyer scale | |
| MX2015007817A (en) | Lift system with monitoring device and method for monitoring a lift system. | |
| CN103558106B (en) | A kind of rolling friction abrasion test device | |
| CN1253703C (en) | Brake force moment measuring device and method | |
| JPS6288792A (en) | Load detector for elevator | |
| CN101566492B (en) | Liquid storage tank liquid-level meter | |
| CN103359567B (en) | Elevator weighing system | |
| US2758830A (en) | Weighing the output of lifting and lowering machines | |
| CN106644224A (en) | Dynamic torque sensor of magnetic bearing | |
| CN109506821A (en) | A kind of movable pulley dynamometer and application method | |
| US9335202B2 (en) | Weighing apparatus that quantifies amount of impact | |
| CN204479242U (en) | A kind of adjustable propeller static balance testing device | |
| CN202938849U (en) | Testing instrument for synchronously testing polished rod load and reducer casing torque of pumping unit | |
| US2918269A (en) | Integrating conveyor scale | |
| CN108414202A (en) | A kind of high speed rotation shafting dynamic radial load stiffness test method and device | |
| CN104677534A (en) | Micromotor torque measuring device using rope and pulley method | |
| CN209940222U (en) | Elevator car weighing system | |
| CN201514298U (en) | Instrument for measuring torque of adjuster | |
| CN107188044A (en) | A kind of craning weight of same is weighed and overload protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 |