CN108489650A - A kind of electric A.C. dynamometer - Google Patents
A kind of electric A.C. dynamometer Download PDFInfo
- Publication number
- CN108489650A CN108489650A CN201810302693.8A CN201810302693A CN108489650A CN 108489650 A CN108489650 A CN 108489650A CN 201810302693 A CN201810302693 A CN 201810302693A CN 108489650 A CN108489650 A CN 108489650A
- Authority
- CN
- China
- Prior art keywords
- motor
- pedestal
- phase asynchronous
- heat emission
- rear cover
- 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.)
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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
Abstract
The invention discloses a kind of electric A.C. dynamometers, including dynamometer machine ontology, three-phase asynchronous Ac motor, torque speed sensor and pedestal, the dynamometer machine ontology includes three-phase asynchronous Ac motor, torque speed sensor and pedestal, wherein, three-phase asynchronous Ac motor is provided with above the pedestal, a side of the three-phase asynchronous Ac motor is provided with torque speed sensor；The wind-force circulation inside motor body can be achieved in heat emission hole and air-introduced machine combination before and after the present invention, accelerates radiating rate；Thin filter screen tentatively filters the air plankton into inside motor body, and fine filtering net further strengthens filtering, avoids the problem that dust deposits inside motor body and motor body damage of components is caused to occur；Air duct can refine uniform air flow, avoid air-flow from flinging and locally cause to damage to filter screen, simple in structure, reasonable design.
Description
Technical field
The invention belongs to test equipment technical fields, and in particular to a kind of electric A.C. dynamometer.
Background technology
In recent years, the rapid development due to Domestic Automotive Industry and equipment manufacture and State construction low-carbon society, to section
The it is proposed that energy emission reduction requires, automobile engine and the power transfer of power and gearing are with transmission efficiency by more and more
Concern, therefore, rotating speed, torque and the transmission efficiency of the devices such as engine, speed-changing gear box are at the weight for reflecting its properties of product
Index is wanted, the detection of this tittle is the required content of delivery test, and carries out the basis of control of product quality.
Dynamometer machine is one of the main test equipment being directly detected to various gearings and dynamic power machine, it can be with
Input power for gear-box, wind turbine, water pump and automobile engine is tested, and the output work of above several equipment can also be carried out
Rate is tested；When being detected to gearing and dynamic power machine, dynamometer machine is set as the Duo Hao Installed of system under test (SUT), is not only used to
The work(of measured piece output is absorbed, and it can be made by controlling dynamometer machine to change the load and rotating speed of tested dynamic power machine
Reach operating mode white when detection, to measure performance indicator of the equipment under test under different operating modes, with science and technology it is continuous into
Step, the production technology of dynamometer machine ontology is increasingly skillful, but still has part deficiency to be modified.
The dynamometer machine ontological existence problems with of the prior art：1, dynamometer machine ontology is the alternating current for sending out alternating current generator
Through inversion be direct current then another mistake become alternating current online, in the process motor otherwise stop transport make, for a long time
Running will produce working heat, and excessively high easy its service life of shortening of temperature, in order to solve heat dissipation problem, existing dynamometer machine ontology is big
Heat emission hole mostly is opened up on surface, although playing heat dissipation effect, dust is easy to enter inside it from heat emission hole, influences its usability
Energy；2, with the development of equipment manufacture, the equipment that the equipment of dynamometer machine ontology test can be used more and more extensive but to be tested
Height differs, and existing dynamometer machine body construction is fixed, and Liftable type does not operate, and limits the development of dynamometer machine ontology.
Invention content
To solve the problems mentioned above in the background art.The present invention provides a kind of electric A.C. dynamometers, have and dissipate
The feature that thermal effect is good, applicability is wide, descending operation is simple.
To achieve the above object, the present invention provides the following technical solutions：A kind of electric A.C. dynamometer, including dynamometer machine sheet
Body, three-phase asynchronous Ac motor, torque speed sensor and pedestal, the dynamometer machine ontology include three-phase asynchronous Ac motor,
Torque speed sensor and pedestal, wherein three-phase asynchronous Ac motor, the phase asynchronous friendship are provided with above the pedestal
A side of galvanic electricity machine is provided with torque speed sensor；
The three-phase asynchronous Ac motor includes motor body and motor rear cover, and the motor body is far from torque speed sensor
Side be provided with motor rear cover, the front surface of the motor body is provided with preceding heat emission hole；
The side of the motor rear cover is provided with rear heat emission hole, and the other side of motor rear cover is provided with air duct, radiates after described
Hole is provided with fixed link close to the side in air duct, and side of the fixed link far from rear heat emission hole is provided with air-introduced machine, described to draw
Side of the wind turbine far from fixed link is provided with fine filtering net, and the inside of the preceding heat emission hole and rear heat emission hole is both provided with carefully mistake
Strainer；
The pedestal is internally provided with holding tank, block has been symmetrically arranged at left and right sides of the holding tank, and accommodate
Slot is internally provided with extension pedestal, is telescopically connected by telescopic rod between the holding tank and extension pedestal；
The telescopic rod includes inner and outer tubes, and the outside of said inner tube is provided with outer tube, and said inner tube is internally provided with limit
A side of position thread groove, the outer tube is provided with limit hole, passes through stop screw between the limit hole and limit thread groove
It is fixedly connected.
Preferably, it is fixedly connected by connecting pole between the motor rear cover and air duct, the inclined knot of motor rear cover
Structure designs, and the inclined surface is with horizontal plane at 60 degree of angles.
Preferably, it is threadedly detachably connected between the motor body and motor rear cover.
Preferably, it is rotatablely connected by articulated manner between the pedestal and block.
Preferably, the stop screw is provided with draw ring close to the side of limit hole.
Preferably, the outer surface of said inner tube is provided with sliding sleeve.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the wind-force circulation inside motor body can be achieved in heat emission hole and air-introduced machine combination before and after the present invention, accelerates heat dissipation speed
Degree；Thin filter screen tentatively filters the air plankton into inside motor body, and fine filtering net further strengthens filtering, avoids ash
Dirt deposits the problem of causing motor body damage of components inside motor body and occurs；Air duct can refine uniform air flow, keep away
Exempt from air-flow and fling that filter screen is locally caused to damage, simple in structure, reasonable design.
2, the height that telescopic mast of the present invention can realize pedestal and extend between pedestal is adjusted, to be suitable for different height
Dynamic power machine tested, applicability is wide；The connection realization telescopic rod inner tube and outer tube of limit thread groove and stop screw
Fixed, descending operation is simple, easily manufactured, and production cost is low, and when use is fixed, has the good market competitiveness.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of heat emission hole before the present invention；
Fig. 3 is the structural schematic diagram of pedestal of the present invention；
Fig. 4 is the structural schematic diagram of telescopic rod of the present invention；
In figure：1, dynamometer machine ontology；2, three-phase asynchronous Ac motor；21, motor body；211, preceding heat emission hole；212, thin filtering
Net；22, motor rear cover；221, air-introduced machine；222, rear heat emission hole；223, fixed link；224, fine filtering net；225, air duct；3、
Torque speed sensor；4, pedestal；41, telescopic rod；42, block；43, holding tank；44, extend pedestal；45, inner tube；46, it draws
Ring；47, limit hole；48, outer tube；49, thread groove is limited；50, stop screw.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the present invention provides following technical scheme：A kind of electric A.C. dynamometer, including dynamometer machine ontology
1, three-phase asynchronous Ac motor 2, torque speed sensor 3 and pedestal 4, dynamometer machine ontology 1 include three-phase asynchronous Ac motor 2,
Torque speed sensor 3 and pedestal 4, wherein the top of pedestal 4 is provided with three-phase asynchronous Ac motor 2, phase asynchronous alternating current
A side of machine 2 is provided with torque speed sensor 3；
Three-phase asynchronous Ac motor 2 includes motor body 21 and motor rear cover 22, and motor body 21 is far from torque speed sensor 3
Side be provided with motor rear cover 22, be threadedly detachably connected between motor body 21 and motor rear cover 22, in order to
The front surface of motor rear cover 22 easy to disassemble, motor body 21 is provided with preceding heat emission hole 211；
The side of motor rear cover 22 is provided with rear heat emission hole 222, and the other side of motor rear cover 22 is provided with air duct 225, motor
It is fixedly connected by connecting pole between rear cover 22 and air duct 225,22 inclined structure design of motor rear cover, inclined surface and horizontal plane
At 60 degree of angles, in order to refine uniform wind-force in order to avoid causing local assault to fine filtering net 224, rear heat emission hole 222 is close to air duct
225 side is provided with fixed link 223, and side of the fixed link 223 far from rear heat emission hole 222 is provided with air-introduced machine 221, air-introduced machine
221 sides far from fixed link 223 are provided with fine filtering net 224, and the inside of preceding heat emission hole 211 and rear heat emission hole 222 is all provided with
It is equipped with thin filter screen 212；
Pedestal 4 is internally provided with holding tank 43, and the left and right sides of holding tank 43 has been symmetrically arranged block 42, pedestal 4 with
It is rotatablely connected by articulated manner between block 42, is rotated in order to facilitate block 42, and holding tank 43 is internally provided with extension
Pedestal 44 is telescopically connected between holding tank 43 and extension pedestal 44 by telescopic rod 41；
Telescopic rod 41 includes inner tube 45 and outer tube 48, and the outer surface of inner tube 45 is provided with sliding sleeve, is slided in order to facilitate inner tube 45,
The outside of inner tube 45 is provided with outer tube 48, and inner tube 45 is internally provided with limit thread groove 49, and a side of outer tube 48 is provided with
Limit hole 47 is fixedly connected between limit hole 47 and limit thread groove 49 by stop screw 50, and stop screw 50 is close to limit
The side in hole 47 is provided with draw ring 46, pulls out stop screw 50 for convenience.
The operation principle and process for using of the present invention：The present invention determines whether to use using preceding elder generation according to device height to be measured
Extend pedestal 44, need not use extend pedestal 44 when, directly utilize dynamometer machine ontology 1 measure, need using extension pedestal 44
When, rotary block 42 will extend pedestal 44 and be released from holding tank 43, and the height of adjustable telescopic rod 41 utilizes after highly regulating
Stop screw 50 connects limit hole 47 and limit thread groove 49, you can the position of fixed inner tube 45 and outer tube 48, profit after fixing
It is measured with dynamometer machine ontology 1, is applicable to the measurement of different height equipment, strong applicability；Stop screw 50 is dismantled after measuring well,
Inner tube 45 is collapsible into outer tube 48, then will extend pedestal 44 and promote holding tank 43, and last rotary block 42, which is fixed, extends pedestal 44
Position, it is easy to operate；In 1 measurement process of dynamometer machine ontology, 221 synchronization action of air-introduced machine draws wind-force from preceding heat emission hole 211
Into, then from the blowout of rear heat emission hole 222, realize wind-force circulation, accelerate distributing for 21 internal heat of motor body, extend motor body
21 service life, through 212 impurity screening of thin filter screen, the further filtering circulation of fine filtering net 224 in wind-force introducing process
Fine impurities in air avoid the problem that dust deposit causes damage of components in the inside of motor body 21, work
Environment is good；The inclined design in air duct 225 can refine uniform air flow, avoid air-flow from flinging and caused to 224 part of fine filtering net
Damage, simple in structure, reasonable design.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of electric A.C. dynamometer, including dynamometer machine ontology（1）, three-phase asynchronous Ac motor（2）, torque speed sensor
（3）And pedestal（4）, it is characterised in that：The dynamometer machine ontology（1）Including three-phase asynchronous Ac motor（2）, torque revolution speed sensing
Device（3）And pedestal（4）, wherein the pedestal（4）Top be provided with three-phase asynchronous Ac motor（2）, the phase asynchronous friendship
Galvanic electricity machine（2）A side be provided with torque speed sensor（3）；
The three-phase asynchronous Ac motor（2）Including motor body（21）And motor rear cover（22）, the motor body（21）Far
From torque speed sensor（3）Side be provided with motor rear cover（22）, the motor body（21）Front surface be provided with before
Heat emission hole（211）；
The motor rear cover（22）Side be provided with rear heat emission hole（222）, and motor rear cover（22）The other side be provided with wind
Road（225）, the rear heat emission hole（222）Close to air duct（225）Side be provided with fixed link（223）, the fixed link（223）
Far from rear heat emission hole（222）Side be provided with air-introduced machine（221）, the air-introduced machine（221）Far from fixed link（223）Side
It is provided with fine filtering net（224）, the preceding heat emission hole（211）With rear heat emission hole（222）Inside be both provided with thin filter screen
（212）；
The pedestal（4）Be internally provided with holding tank（43）, the holding tank（43）The left and right sides be symmetrically arranged
Block（42）, and holding tank（43）Be internally provided with extension pedestal（44）, the holding tank（43）With extension pedestal（44）It
Between pass through telescopic rod（41）It is telescopically connected；
The telescopic rod（41）Including inner tube（45）And outer tube（48）, said inner tube（45）Outside be provided with outer tube（48）, institute
State inner tube（45）Be internally provided with limit thread groove（49）, the outer tube（48）A side be provided with limit hole（47）, institute
State limit hole（47）With limit thread groove（49）Between pass through stop screw（50）It is fixedly connected.
2. a kind of electric A.C. dynamometer according to claim 1, it is characterised in that：The motor rear cover（22）With air duct
（225）Between be fixedly connected by connecting pole, the motor rear cover（22）Inclined structure design, the inclined surface and horizontal plane
At 60 degree of angles.
3. a kind of electric A.C. dynamometer according to claim 1, it is characterised in that：The motor body（21）With motor
Rear cover（22）Between be threadedly detachably connected.
4. a kind of electric A.C. dynamometer according to claim 1, it is characterised in that：The pedestal（4）With block（42）
Between be rotatablely connected by articulated manner.
5. a kind of electric A.C. dynamometer according to claim 1, it is characterised in that：The stop screw（50）Close to limit
Position hole（47）Side be provided with draw ring（46）.
6. a kind of electric A.C. dynamometer according to claim 1, it is characterised in that：Said inner tube（45）Outer surface
It is provided with sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810302693.8A CN108489650A (en) | 2018-04-05 | 2018-04-05 | A kind of electric A.C. dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810302693.8A CN108489650A (en) | 2018-04-05 | 2018-04-05 | A kind of electric A.C. dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108489650A true CN108489650A (en) | 2018-09-04 |
Family
ID=63314679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810302693.8A Withdrawn CN108489650A (en) | 2018-04-05 | 2018-04-05 | A kind of electric A.C. dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108489650A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779643A (en) * | 2019-11-30 | 2020-02-11 | 南通远辰测控设备有限公司 | AC electric dynamometer |
| CN111912560A (en) * | 2020-07-14 | 2020-11-10 | 嘉兴学院 | Wind load pressure sensor equipment |
-
2018
- 2018-04-05 CN CN201810302693.8A patent/CN108489650A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779643A (en) * | 2019-11-30 | 2020-02-11 | 南通远辰测控设备有限公司 | AC electric dynamometer |
| CN111912560A (en) * | 2020-07-14 | 2020-11-10 | 嘉兴学院 | Wind load pressure sensor equipment |
| CN111912560B (en) * | 2020-07-14 | 2021-08-24 | 嘉兴学院 | Wind load pressure sensor equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180904 |
|
| WW01 | Invention patent application withdrawn after publication |