CN107014532B - A kind of theory zero error dynamometer machine - Google Patents
A kind of theory zero error dynamometer machine Download PDFInfo
- Publication number
- CN107014532B CN107014532B CN201710349627.1A CN201710349627A CN107014532B CN 107014532 B CN107014532 B CN 107014532B CN 201710349627 A CN201710349627 A CN 201710349627A CN 107014532 B CN107014532 B CN 107014532B
- Authority
- CN
- China
- Prior art keywords
- shell
- fixed
- shaft
- rotor
- dynamometer machine
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
Theoretical zero error dynamometer machine of the invention, including shell, stator, rotor, shaft and support plate, it is characterized in that stating and is respectively and fixedly provided with end cap set in the both ends of the surface of shell, end cap set is fixed in support plate by shell bearing, force sensor is arranged in the lower section of shell, one end of force snesor is mutually fixed through fixed screw and workbench or ground, and other end distribution is fixed on shell.Dynamometer machine of the invention, since shaft is fixed on shell by rotor bearing, so that substantially without energy loss during the output shaft of tested motor drives shaft to rotate；Since shell is fixed in support plate by shell bearing, so that existing substantially without frictional force between shell (rotor) and support plate, the output signal for allowing for force snesor in this way can really reflect the output torque of tested motor, the basic zero error of measured value.
Description
Technical field
The present invention relates to a kind of theoretical zero error dynamometer machines, more specifically, more particularly to a kind of dynamometer machine shell both ends
End cap set the theoretical zero error dynamometer machine in support plate is fixed on through shell bearing.
Background technique
Dynamometer machine common at present has magnetic hysteresis dynamometer machine, magnetic powder dynamometer machine, eddy current dynamometer.These dynamometer machines have one
Common feature, 1. itself there are static friction errors.Theoretically, this error is permanently present, although can be made
It is very small, but still exist.2. self-heating is very severe, it is therefore necessary to be equipped with the cooling-parts such as special air-cooled or water cooling.
The reason is that can be completely converted into thermal energy in dynamometer machine internal mechanical, these thermal energy all concentrate on dynamometer machine itself again.Even
Continuous when working long hours, dynamometer machine this phenomenon of generating heat is especially apparent.Therefore, above several dynamometer machines do not meet current energy-efficient
It is required that and structure is complicated, occupied area is larger, costly.
Summary of the invention
The present invention in order to overcome the shortcomings of the above technical problems, provides a kind of theoretical zero error dynamometer machine.
Theoretical zero error dynamometer machine of the invention, including shell, stator, rotor, shaft and support plate, rotor, which is fixed on, to be turned
On axis, rotor is made of rotor core and rotor windings, and shaft with the output shaft of tested motor for being connected；Stator is fixed
In on shell, being provided with excitation winding on stator, the both ends of shaft are fixed on shell through rotor bearing, with guarantee shaft from
By rotating；It is characterized by: be respectively and fixedly provided with end cap set in the both ends of the surface of the shell, end cap set be located at the periphery of shaft and and its
Coaxial arrangement, end cap set are fixed in support plate by shell bearing, and the lower end of support plate is fixed on workbench or ground；Institute
The lower section setting force sensor of shell is stated, one end of force snesor is mutually fixed through fixed screw and workbench or ground, another
End distribution is fixed on shell, and the output signal of force snesor is used to react the torque of tested motor.
Theoretical zero error dynamometer machine of the invention, is fixed with terminal box on the shell, terminal box for draw excitation around
Group lead-out wire and rotor windings lead-out wire, excitation winding lead-out wire are connected with field power supply；Rotor windings lead-out wire is through voltage
Conversion circuit processing after be connected with power grid or electrical equipment, so as in the tested long-term test process of motor by the electricity of generation
It can be used, reduce energy consumption.
Theoretical zero error dynamometer machine of the invention, is provided with commutating pole, commutator and brush in the shell, brush with change
It is matched to device；One end of the shaft is fixed with radiator fan.
The mechanical characteristic test method of theoretical zero error dynamometer machine of the invention, is realized by following steps:
A) fixed dynamometer will be surveyed under conditions of the shaft of guarantee dynamometer machine and the coaxial output shaft of tested motor
The support plate at function machine both ends is fixed on workbench or ground；B) connection is tested motor, using shaft coupling, by tested electricity
The output shaft of machine and the shaft of dynamometer machine are fixed together；Supporting role due to rotor bearing to shaft, so that tested
During the output shaft drive shaft rotation for trying motor, the basic no consumption of torque；According to electromagnetic induction principle, dynamometer machine it is outer
Effect of the shell by rotor electromagnetic force, the also effect by the frictional force of rotor bearing very little, due to the presence of shell bearing, outside
Shell is by the trend with the equidirectional rotation of rotor；Since rigidity of the force snesor to dynamometer machine shell is braked, so that dynamometer machine shell
It will not rotate, then not rub between shell bearing and end cap set, therefore electromagnetic force and friction of the dynamometer machine shell by rotor
Power all concentrates on force snesor, and during this, various power are not consumed, that is, realizes 0 error of torque transmission；c).
Force snesor is connected, one end of force snesor is fixed on workbench or ground by fixed screw, is passed power by pin
The other end of sensor is fixed on the shell of dynamometer machine；D) cable connects, and excitation winding lead-out wire is connected with field power supply
It connects, force sensor signals lead-out wire is connected with signal acquisition and display equipment；If necessary to be grown to tested motor
Rotor windings lead-out wire is then connected by the test of time with power grid or electrical equipment；E) testing mechanical characteristic connects measurement of power
The field power supply of machine starts tested motor, after running smoothly, by the measurement to force sensor output signal, can react
The mechanical property of tested motor.
The beneficial effects of the present invention are: dynamometer machine of the invention, by fixing end cap set, and end cap set at the both ends of shell
It is fixed in support plate by shell bearing, when being tested after the output shaft of tested motor is fixedly connected with shaft, due to turning
Axis is fixed on shell by rotor bearing, so that the output shaft of tested motor does not have substantially during driving shaft rotation
Energy loss, since shell is fixed in support plate by shell bearing, so that not having substantially between shell (rotor) and support plate
With the presence of frictional force, the output signal for allowing for force snesor in this way can really reflect the output torque of tested motor, survey
The basic zero error of magnitude solves the problems, such as that existing magnetic hysteresis dynamometer machine, magnetic powder dynamometer machine, eddy current dynamometer error are larger, so that
Experimental data can really reflect the mechanical property of tested motor, and beneficial effect is significant, be suitable for the application of popularization.
During tested motor needs to test for a long time, by the way that rotor windings lead-out wire is set with power grid or electricity consumption
It is standby to be connected, it converts the mechanical energy that tested motor exports to after electric energy and is further used, solve previous dynamometer machine
The waste of the energy, so that dynamometer machine of the invention more energy-saving and environmental protection.
Detailed description of the invention
Fig. 1 is the perspective view of theoretical zero error dynamometer machine of the invention；
Fig. 2 is the cross-sectional view of theoretical zero error dynamometer machine of the invention；
Fig. 3 is the structural schematic diagram of rotor in the present invention；
Fig. 4 is the cross-sectional view of rotor in the present invention.
In figure: 1 shaft, 2 end cap sets, 3 shells, 4 shell bearings, 5 force snesors, 6 fixed screws, 7 pins, 8 terminal boxes,
9 excitation winding lead-out wires, 10 rotor windings lead-out wires, 11 force sensor signals lead-out wires, 12 support plates, 13 stators, 14 excitations
Winding, 15 brushes, 16 commutators, 17 rotor bearings, 18 rotor cores, 19 rotor windings, 20 radiator fans, 21 commutating poles.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the perspective view and cross-sectional view of theoretical zero error dynamometer machine of the invention, institute is set forth
The dynamometer machine shown is by rotor, stator 13, shaft 1, shell 3, end cap set 2, rotor bearing 17, shell bearing 4, support plate 12 and power
Sensor 11 forms, and rotor is made of rotor core 18 and rotor windings 19, and rotor core 18 is fixed in shaft 1, to realize
Rotor core 18 follows shaft 1 to be rotated.Shown stator 13 is located at the periphery of rotor, is provided with excitation winding on stator 13
14, stator 13 regulation can on shell 3；The both ends of shaft 1 pass through rotor bearing 17 and are fixed on shell 3, are turned with realizing
Axis 1 is freely rotated.
End cap set 2 is respectively and fixedly provided on the side at 3 both ends of shell, end cap set 2 is located at the periphery of shaft 1, and coaxial with shaft 1
Setting, end cap set 2 are fixed in support plate 12 through shell bearing 4, and inner ring and the end cap of shell bearing 4, which cover 2 phases, to be fixed, enclosure axis
It holds 4 outer ring to be fixed in support plate 12, allows for shell 3 in this way and can be freely rotated or have in support plate 12 to be freely rotated
Drive.Support plate 12 is fixed on workbench or ground, to realize the fixation of entire dynamometer machine.Shown force snesor 5 is located at
The fixed screw 6 of one end 2 of the lower section of shell 3, force snesor 5 is fixed on workbench or ground, other end distribution 7 with
The shell 3 of dynamometer machine is fixedly connected, and the force sensor signals lead-out wire 11 of force snesor 5 is used to export the torque value of shell 3.
It is in dynamometer machine use process, the shaft 1 of the output shaft of tested motor and dynamometer machine is coaxially connected, tested
During motor drives shaft 1 and rotor to rotate synchronously, due to the presence of rotor bearing 17, so that tested motor output
Power passes to substantially lossless during rotor.During rotor rotation, due to electromagnetic induction, stator 13 will drive
Rotate or make it have the trend of rotation；It is mutually fixed by force snesor 5 with workbench or ground due to shell 3, is also just made again
Obtain stator 13 and shell 3 has driving with rotor rotation simultaneously.Since end cap set 2 is fixed on support plate 12 through shell bearing 4
On, so that substantially without friction between shell 3 and support plate 12, shell 3 has torque meeting caused by the trend rotated with rotor
It is all applied on force snesor 5, makes the output signal of force sensor 5 that can reflect the mechanical property of tested motor,
It is substantially lossless in transmittance process, it is " zero error ".
It is provided with terminal box 8 on shown shell 3, rotor windings lead-out wire 10 is provided in terminal box 8 and excitation winding is drawn
Outlet 9, excitation winding lead-out wire 9 are connected with field power supply, to realize the excitation to dynamometer machine.It needs to grow in tested motor
In the case where time test, by rotor windings lead-out wire 10 first after the processing of voltage conversion circuit, set with power grid or electricity consumption
It is standby to be connected.The energy that tested motor exports is used, energy waste is avoided.
In Fig. 2, the right end of shaft 1 is fixed with commutator 16, and the periphery of commutator 16 is provided with 2 electricity in contact
Brush 15, to realize the commutation function of rotor windings 19 in 1 rotation process of shaft.As shown in Figure 3 and Figure 4, it is set forth
The structural schematic diagram and cross-sectional view of rotor in the present invention, one end of shown shaft 1 are fixed with radiator fan 20, realize dynamometer machine
Cooling.It is provided with commutating pole 21 in shown shell 3, for improving the commutation of dynamometer machine, reduces the spark between commutator.
The mechanical characteristic test method of theoretical zero error dynamometer machine of the invention, is realized by following steps:
A) fixed dynamometer, under conditions of the shaft (1) of guarantee dynamometer machine and the coaxial output shaft of tested motor,
The support plate (12) at dynamometer machine both ends is fixed on workbench or ground；
B) connection is tested motor, using shaft coupling, the shaft (1) of the output shaft of tested motor and dynamometer machine is solid
Surely it links together；Supporting role due to rotor bearing (17) to shaft (1), so that the output shaft band turn of tested motor
During axis (1) rotates, the basic no consumption of torque；
According to electromagnetic induction principle, effect of the shell (3) of dynamometer machine by rotor electromagnetic force, also by rotor bearing
(17) effect of the frictional force of very little, due to the presence of shell bearing (4), shell (3) is by the trend with the equidirectional rotation of rotor；
Since rigidity of the force snesor to dynamometer machine shell (3) is braked so that dynamometer machine shell will not rotate, then shell bearing (4) with
End cap set does not rub between (2), therefore dynamometer machine shell (3) is all concentrated on power by the electromagnetic force and frictional force of rotor and passes
On sensor, during this, various power are not consumed, that is, realize 0 error of torque transmission；
Workbench or ground are fixed on by fixed screw (6) in one end of force snesor (5) by c) connection force snesor
On, the other end of force snesor is fixed on the shell (3) of dynamometer machine by pin (7)；
D) cable connects, and excitation winding lead-out wire (9) is connected with field power supply, by force sensor signals lead-out wire
(11) it is connected with signal acquisition and display equipment；If necessary to be tested for a long time tested motor, then by rotor
Winding leading-out wire (10) is connected with power grid or electrical equipment；
E) testing mechanical characteristic connects the field power supply of dynamometer machine, starts tested motor, after running smoothly, by right
The measurement of force sensor output signal can react the mechanical property of tested motor.
Claims (3)
1. a kind of mechanical characteristic test method of theory zero error dynamometer machine, theoretical zero error dynamometer machine includes shell (3), stator
(13), rotor, shaft (1) and support plate (12), rotor is fixed in shaft, and rotor is by rotor core (18) and rotor windings
(19) it forms, shaft with the output shaft of tested motor for being connected；Stator is fixed on shell, and excitation is provided on stator
The both ends of winding (14), shaft are fixed on shell through rotor bearing (17), to guarantee being freely rotated for shaft；The shell
It is respectively and fixedly provided in both ends of the surface end cap set (2), end cap set is located at the periphery of shaft and is coaxially arranged, and end cap set passes through enclosure axis
It holds (4) to be fixed on support plate (12), the lower end of support plate is fixed on workbench or ground；It is set below the shell (3)
It is equipped with force snesor (5), one end of force snesor is mutually fixed through fixed screw (6) with workbench or ground, other end distribution
(7) it is fixed on shell, the output signal of force snesor is used to react the torque of tested motor；
It is characterized in that, the mechanical characteristic test method of theoretical zero error dynamometer machine is realized by following steps:
A) fixed dynamometer will be surveyed under conditions of the shaft (1) of guarantee dynamometer machine and the coaxial output shaft of tested motor
The support plate (12) at function machine both ends is fixed on workbench or ground；
B) connection is tested motor, using shaft coupling, by the fixed company of the shaft (1) of the output shaft of tested motor and dynamometer machine
It is connected together；Supporting role due to rotor bearing (17) to shaft (1), so that the output shaft of tested motor drives shaft
(1) during rotating, the basic no consumption of torque；
According to electromagnetic induction principle, effect of the shell (3) of dynamometer machine by rotor electromagnetic force, also very by rotor bearing (17)
The effect of small frictional force, due to the presence of shell bearing (4), shell (3) has the tendency that with the equidirectional rotation of rotor；Due to power
Sensor brakes the rigidity of dynamometer machine shell (3), so that dynamometer machine shell will not rotate, then shell bearing (4) and end cap set
(2) it does not rub between, therefore dynamometer machine shell (3) is all concentrated on force snesor by the electromagnetic force and frictional force of rotor
On, during this, various power are not consumed, that is, realize 0 error of torque transmitting；
One end of force snesor (5) is fixed on workbench or ground by c) connection force snesor by fixed screw (6), is led to
It crosses pin (7) other end of force snesor is fixed on the shell (3) of dynamometer machine；
D) cable connects, and excitation winding lead-out wire (9) is connected with field power supply, by force sensor signals lead-out wire (11)
It is connected with signal acquisition and display equipment；If necessary to be tested for a long time tested motor, then by rotor windings
Lead-out wire (10) is connected with power grid or electrical equipment；
E) testing mechanical characteristic connects the field power supply of dynamometer machine, starts tested motor, after running smoothly, by passing to power
The measurement of sensor output signal can react the mechanical property of tested motor.
2. the mechanical characteristic test method of theory zero error dynamometer machine according to claim 1, it is characterised in that: described outer
It is fixed on shell (3) terminal box (8), terminal box is encouraged for drawing excitation winding lead-out wire (9) and rotor windings lead-out wire (10)
Magnetic winding leading-out wire is connected with field power supply；Rotor windings lead-out wire is set after voltage conversion circuit is handled with power grid or electricity consumption
It is standby to be connected, so that the electric energy of generation is used in the tested long-term test process of motor, reduce energy consumption.
3. the mechanical characteristic test method of theory zero error dynamometer machine according to claim 1 or 2, it is characterised in that: institute
It states and is provided with commutating pole (21), commutator (16) and brush (15) in shell (3), brush is matched with commutator；The shaft
(1) one end is fixed with radiator fan (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349627.1A CN107014532B (en) | 2017-05-17 | 2017-05-17 | A kind of theory zero error dynamometer machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349627.1A CN107014532B (en) | 2017-05-17 | 2017-05-17 | A kind of theory zero error dynamometer machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107014532A CN107014532A (en) | 2017-08-04 |
| CN107014532B true CN107014532B (en) | 2019-07-12 |
Family
ID=59450205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710349627.1A Expired - Fee Related CN107014532B (en) | 2017-05-17 | 2017-05-17 | A kind of theory zero error dynamometer machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107014532B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2412213Y (en) * | 2000-02-23 | 2000-12-27 | 摩托车检测技术研究所 | Chassis ergograph |
| CN2689210Y (en) * | 2004-02-06 | 2005-03-30 | 中国兵器装备集团摩托车检测技术研究所 | External air cooled and closed AC power supply dynamometer |
| CN101118195A (en) * | 2007-09-14 | 2008-02-06 | 蔡秀华 | Brushless direct current electric power dynamometer machine |
| CN201138260Y (en) * | 2007-11-28 | 2008-10-22 | 常柴股份有限公司 | Motion connecting apparatus of jack horse of multi-cylinder diesel force gauge |
| CN201322664Y (en) * | 2008-12-26 | 2009-10-07 | 中国兵器装备集团摩托车检测技术研究所 | Hydrostatic bearing type AC electric power dynamometer |
| CN101625016A (en) * | 2009-08-18 | 2010-01-13 | 国家康复辅具研究中心 | Gapless rotary pair |
| CN203069304U (en) * | 2013-02-25 | 2013-07-17 | 杭州威衡科技有限公司 | Hysteresis dynamometer |
| CN106130239A (en) * | 2016-07-18 | 2016-11-16 | 哈尔滨理工大学 | A kind of frequency conversion brushless direct current generator |
-
2017
- 2017-05-17 CN CN201710349627.1A patent/CN107014532B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2412213Y (en) * | 2000-02-23 | 2000-12-27 | 摩托车检测技术研究所 | Chassis ergograph |
| CN2689210Y (en) * | 2004-02-06 | 2005-03-30 | 中国兵器装备集团摩托车检测技术研究所 | External air cooled and closed AC power supply dynamometer |
| CN101118195A (en) * | 2007-09-14 | 2008-02-06 | 蔡秀华 | Brushless direct current electric power dynamometer machine |
| CN201138260Y (en) * | 2007-11-28 | 2008-10-22 | 常柴股份有限公司 | Motion connecting apparatus of jack horse of multi-cylinder diesel force gauge |
| CN201322664Y (en) * | 2008-12-26 | 2009-10-07 | 中国兵器装备集团摩托车检测技术研究所 | Hydrostatic bearing type AC electric power dynamometer |
| CN101625016A (en) * | 2009-08-18 | 2010-01-13 | 国家康复辅具研究中心 | Gapless rotary pair |
| CN203069304U (en) * | 2013-02-25 | 2013-07-17 | 杭州威衡科技有限公司 | Hysteresis dynamometer |
| CN106130239A (en) * | 2016-07-18 | 2016-11-16 | 哈尔滨理工大学 | A kind of frequency conversion brushless direct current generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107014532A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103222165A (en) | Three phase permanent magnet servomotor | |
| CN104967253A (en) | High-speed Hall-free three-phase vacuum cleaner motor | |
| CN107014532B (en) | A kind of theory zero error dynamometer machine | |
| CN112152357A (en) | Stator excitation type field modulation motor based on magnetic pole adjusting structure | |
| CN116231972B (en) | System and method for detecting temperature of winding of rotor of wound induction hydraulic generator | |
| CN104065221A (en) | Series YVF3 special three-phase asynchronous motor with ultra-high-efficient frequency control | |
| CN204992936U (en) | There is not hall three -phase dust catcher motor at a high speed | |
| CN206272358U (en) | A kind of stator structure of direct current generator | |
| CN101714846B (en) | Brushless synchronous dynamo | |
| CN204012962U (en) | A kind of asynchronous voltage and frequency motor | |
| CN201191796Y (en) | Brushless excitation system embedded synchronous electric motor | |
| CN1719699A (en) | Coarmature type AC-DC brushless electric generator | |
| CN204597718U (en) | The two straight wind-driven generator of axial magnetic field slippage synchronous mode | |
| CN209488284U (en) | Permanent magnet DC motor | |
| KR101448608B1 (en) | Wound syschronous motor comprising power supply | |
| CN207819613U (en) | A kind of high stable permanent-magnet DC brush micro machine | |
| CN210839291U (en) | Three-phase permanent magnet synchronous motor | |
| CN201393150Y (en) | Permanent-magnetic DC electric motor with double commutators | |
| CN216564875U (en) | Electric motor | |
| CN204572504U (en) | A kind of interchange drum type axial-flow blower of individual layer short distance | |
| CN219477818U (en) | Brushless excitation hydraulic generator with auxiliary winding | |
| CN201437787U (en) | Inner rotor type DC fan | |
| CN109167469A (en) | A kind of high-performance domestic electric appliance motor | |
| CN207652230U (en) | A kind of three-phase brushless DC fan motor | |
| CN202805134U (en) | Double-insulation variable-frequency brushless electric tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20190712 Termination date: 20200517 |