CN206378230U - A kind of low-speed big electric eddy current dynamometer of direct water-cooling - Google Patents
A kind of low-speed big electric eddy current dynamometer of direct water-cooling Download PDFInfo
- Publication number
- CN206378230U CN206378230U CN201620750283.6U CN201620750283U CN206378230U CN 206378230 U CN206378230 U CN 206378230U CN 201620750283 U CN201620750283 U CN 201620750283U CN 206378230 U CN206378230 U CN 206378230U
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- coil
- stainless steel
- eddy current
- cooling
- water
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Abstract
The utility model discloses a kind of low-speed big electric eddy current dynamometer of direct water-cooling, float and manage including bearing, bearing block, base, axle, shaft coupling, gear ring, speed probe, end cap, cooling chamber, disk, coil, stainless steel insert, conducting magnet core, stainless steel ring, outer shroud, outlet pipe, water inlet pipe and water inlet, the bearing is arranged on base by bearing block, the bearing supported shaft rotation, the axle two ends are mounted on shaft coupling, gear ring and speed probe are mounted on the shaft coupling, the two end cap is symmetrically connected to the both sides of axle.A kind of low-speed big electric eddy current dynamometer for direct water-cooling that the utility model is provided has the advantages that braking torque is big, good cooling results.
Description
Technical field
The utility model is related to a kind of electric eddy current dynamometer, and the low-speed big current vortex of especially a kind of direct water-cooling is surveyed
Work(machine.
Background technology
Due to electric eddy current dynamometer have low inertia, high accuracy, high stability, it is simple in construction the features such as, it is adaptable to operate
The automation of control, and power bracket is also wider, and rotating speed is higher, and response speed is very fast, test technology comparative maturity, based on it
Good controlling, adjustability and load stability, electric eddy current dynamometer is more suitable for the exploitation and experiment of engine, is
A kind of current each most widely used electric power measurement of power equipment of combustion engine manufacture factory.
But traditional eddy current absorption dynamometer absorbed power is smaller, the corresponding rotating speed of its nominal torque all in more than 1000rpm,
Especially when rotating speed is less than 800rpm, dynamometer machine braking torque very little, and also control performance is poor.With engine, gearbox
The development of technology, requirements at the higher level is proposed to each side such as the absorbed power of dynamometer machine, rotating speed, response speeds, therefore how to carry
The power of high electric eddy current dynamometer, especially compared with its braking torque is improved under the slow-speed of revolution, be at present need solve the problem of one of.
Utility model content
The purpose of this utility model is to provide that a kind of braking torque is big, the direct water-cooling low-speed big of good cooling results
Electric eddy current dynamometer.
The technical solution of the utility model is：A kind of low-speed big electric eddy current dynamometer of direct water-cooling, including bearing,
Bearing block, base, axle, shaft coupling, gear ring, speed probe, end cap, cooling chamber, disk, coil, outer shroud, stainless steel insert,
Conducting magnet core, stainless steel ring, outlet pipe, water inlet pipe and water inlet, which are floated, is managed, and the bearing is arranged on base by bearing block, institute
Bearing supported shaft rotation is stated, the axle two ends are provided with shaft coupling, the shaft coupling and are mounted on gear ring and speed probe,
The two end cap is symmetrically connected to the both sides of axle；
Two symmetrical cooling rooms, two symmetrical disks, coil block and outer shroud, the end cap are sequentially provided between the two end cap
It is connected by screw between cooling chamber, the disk is fixed on axle and air gap is left between coil block, the coil
Component includes coil, stainless steel insert, conducting magnet core and stainless steel ring, and the two ends of the coil are provided with stainless steel insert, described
The centre of coil is provided with conducting magnet core, and the bottom inner portion of the coil is provided with stainless steel ring, and the stainless steel insert passes through welding
It is connected with conducting magnet core, the top of the coil is provided with outer shroud, and the cooling chamber is fixed by screw with stainless steel insert, outer shroud
Integrally；
The cooling chamber upper end is provided with two outlet pipes, and the outlet pipe flows into the water outlet for being arranged on base intracavity by pipeline
House steward, the cooling chamber lower end be provided with two water inlet pipes, the front end of water-in and water-out house steward provided with one section water inlet float pipe, it is described enter
Water floating pipe is fed through base and is fixed on by connector on base.
Preferably, labyrinth seal is used between the axle and cooling chamber.
Preferably, grommet, water-throwing disk and O-ring seal are installed between the bearing and cooling chamber.
Preferably, the coil is 8 coils being uniformly distributed along the circumference.
Preferably, the coil uses enamel-covered wire coiling, and by vacuum paint dipping.
Preferably, the conducting magnet core is axially disconnected, and is divided into two-section, and the stainless steel insert with coil two ends is welded respectively.
Preferably, sealed between the stainless steel ring and the stainless steel insert at two ends using RUBBER O type sealing ring.
Preferably, the outer shroud is using the weak cast iron quality of magnetic conduction ability.
Preferably, the side of the outer shroud is also equipped with the sophisticated sensor of dynamometry.
Preferably, the two ends of the water inlet floating pipe are equipped with RUBBER O type sealing ring.
Compared with prior art, the utility model has the advantages that：It is equal that the utility model employs 8 circumference
Induct on the opposite coil of cloth, adjacent polarity, the rotating circular disk at coil two ends vortex flow, produce fuel factor and trigger action, circle
Disk direct water-cooling, coil passes through stainless steel insert and water segregation.Compared with traditional electric eddy current dynamometer, in same volume and weight
Under, the braking torque of the utility model electric eddy current dynamometer is bigger, and just can reach maximum braking torsion in rotating speed 500rpm or so
Square, is especially suitable for some compared with moment of torsion under the slow-speed of revolution very big measurement condition；By the way of direct water-cooling, it is ensured that dynamometer machine
Permanently effective work.The instrument frock of existing manufacture electric eddy current dynamometer can meet its production, be set without purchasing production in addition
It is standby.
Brief description of the drawings
Fig. 1 is main view schematic cross-sectional view of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the utility model is described further.
As shown in figure 1, a kind of low-speed big electric eddy current dynamometer of direct water-cooling, including bearing 1, bearing block 2, base
3rd, axle 4, shaft coupling 5, gear ring 6, speed probe 7, end cap 8, cooling chamber 9, disk 10, coil 11, outer shroud 12, stainless steel insert
13rd, conducting magnet core 14, stainless steel ring 15, outlet pipe 16, water inlet pipe 17 and water inlet floating pipe 18.
Bearing 1 is installed on the base 3 by bearing block 2, has supported dynamometer machine housing, and dynamometer machine housing can be in bearing 1
In somewhat swing, prevent force cell by additional torque.
The support shaft 4 of bearing 1 rotates, and the two ends of axle 4 are provided with shaft coupling 5, for coupling with test specimen；On shaft coupling 5
Gear ring 6 and speed probe 7 are installed, for measuring rotating speed.Two end cap 8 is symmetrically connected to the both sides of axle 4, in order to prevent cooling
Water enters bearing 1.
Two symmetrical cooling rooms 9, two symmetrical disks 10, coil block and outer shroud 12 are sequentially provided between two end cap 8.
It is connected by screw between end cap 8 and cooling chamber 9.
Disk 10 is fixed on axle 4 and air gap is left between coil block, and disk 10 is using the good material of magnetic property
Matter；Direct water-cooling when rosette 10 works, surface antirust treatment, and scale inhibition coating is coated, include the one of iron core contact water
Also identical processing is done in end.
Coil 11 is using 8 less coils, and be uniformly distributed along the circumference a circle (having space between coil), and coil 11 uses enamel-cover
Line coiling, and by vacuum paint dipping, increase its insulating properties；Air gap is left between coil 11 and rosette 10, by changing
The direction of exciting current, makes the opposite polarity of adjacent windings 11, and adjacent two coil 11, rosette 10, air gap formation magnetic conduction are returned
Road, when rosette 10 is rotated, the corresponding magnetic field of any place interlocks change on rosette 10, and sense is generated on disk 10
Induced current.
In order to ensure the reliably working of coil 11, coil 11 must be equipped with not away from water at the two ends of each coil 11
Become rusty steel skeleton 13, for fixed coil 11 and isolates cooling water, and stainless steel magnetic conduction ability is weak.The centre of coil 11 is provided with and led
Magnetic core 14, the bottom inner portion of coil 11 is provided with stainless steel ring 15, wherein each conducting magnet core 14 axially disconnects, is divided into two-section,
The stainless steel insert 13 with the two ends of coil 11 is welded respectively.
Perforate at the correspondence coil 11 of stainless steel insert 13,8 iron cores is inserted in 8 holes respectively, and use special welding
Material, must not leak by iron core and skeleton firm welding.
Coil 11 is inserted in iron core respectively, and the top of all coils 11 is provided with outer shroud 12, and outer shroud 12 is weak using magnetic conduction ability
Cast iron quality, for fixed coil 11 and the stainless steel insert at two ends 13.
All stainless steel rings 15 and the coil rack 13 at two ends are sealed by RUBBER O type sealing ring, prevent cooling water from entering
In coil rack.
Perforate on outer shroud 12, for coil lead to be picked out, while outer shroud bottom opening, timely by the condensed water in air
Discharge, prevents coil 11 from leaking electricity.Cooling chamber 9 is integrally fixed by screw with stainless steel insert 13, outer shroud 12.
The upper end of cooling chamber 9 sets two outlet pipes 16, and outlet pipe 16 is flowed into by pipeline guide cooling water and is arranged in base
The outfall sewer of chamber.The lower end of cooling chamber 9 sets two inlet channels 17, has one section of water inlet to float in the front end of water-in and water-out house steward and manages
18, water inlet floating pipe 18 is fed through base 3 and fixed on the base 3 by connector.The two ends of water inlet floating pipe 18 are equipped with
RUBBER O type sealing ring, can make floating pipe two ends deflect certain angle or displacement, cause deflection to turn round to dynamometer machine to prevent water inlet pipe
Square, influences measuring accuracy.
Axle 4 passes through the center of cooling chamber 9, reduces cooling water by the way of labyrinth seal 19 between cooling chamber 9 and axle 4 and lets out
Leakage, and the cooling water that will leak out is directly discharged into the inner chamber of measurement of power machine base, then take over outflow.It is cold in addition to labyrinth seal 19
Grommet 20, water-throwing disk 21 and O-ring seal are but installed between room 9 and axle 4.
The sophisticated sensor of dynamometry is installed in the side of outer shroud 12, vortex of inducting on the rotating circular disk on axle 4 electricity
Gesture, and vortex is produced, the magnetic field that the vortex is formed interacts with air-gap field again, just generates braking moment.The torque
Reached by outer shroud 12 and power transmission arm on device for measuring force, the size of power is converted into electric signal output by force snesor, so as to reach
To the purpose for surveying torque.
A kind of low-speed big electric eddy current dynamometer of direct water-cooling of the present utility model, employs 8 circumference uniform distributions, phases
Induct on adjacent opposite polarity coil, the rotating circular disk at coil two ends vortex flow, produce fuel factor and trigger action, disk is direct
Water cooling, coil passes through stainless steel insert and water segregation.
Compared with traditional electric eddy current dynamometer, the biggest advantage is that, under same volume and weight, its braking torque is more
Greatly, while its low-speed performance is excellent, the corresponding rotating speed of maximum braking torque only has 500rpm or so, is especially suitable for some relatively low
Moment of torsion very big measurement condition under rotating speed.
Because the heat produced in the electric eddy current dynamometer course of work is up to hundreds of kilowatts, cause dynamometer machine internal temperature liter
Height, braking effect is had a greatly reduced quality；By the way of direct water-cooling, it is ensured that the permanently effective work of dynamometer machine.
The instrument frock of existing manufacture electric eddy current dynamometer can meet its production, without purchasing production equipment in addition.
The above embodiments are only preferred embodiment of the present utility model, it is impossible to right of the present utility model is limited with this
Scope, therefore, modification, equivalent variations, improvement for being made according to present utility model application the scope of the claims etc. still belong to the utility model institute
The scope covered.
Claims (10)
1. a kind of low-speed big electric eddy current dynamometer of direct water-cooling, including bearing, bearing block, base, axle, shaft coupling, tooth
Circle, speed probe, end cap, cooling chamber, disk, coil, stainless steel insert, conducting magnet core, stainless steel ring, outer shroud, outlet pipe,
Water inlet pipe and water inlet, which are floated, manages, it is characterised in that：The bearing is arranged on base by bearing block, the bearing supported shaft rotation
Turn, the axle two ends, which are provided with shaft coupling, the shaft coupling, is mounted on gear ring and speed probe, and the two end cap is symmetrical
It is connected to the both sides of axle；
Be sequentially provided with two symmetrical cooling rooms, two symmetrical disks, coil block and outer shroud between the two end cap, the end cap with it is cold
But it is connected by screw between room, the disk is fixed on axle and air gap is left between coil block, the coil block
Including coil, stainless steel insert, conducting magnet core and stainless steel ring, the two ends of the coil are provided with stainless steel insert, the coil
Centre be provided with conducting magnet core, the bottom inner portion of the coil is provided with stainless steel ring, and the stainless steel insert is by welding with leading
Magnetic core is connected, and the top of the coil is provided with outer shroud, and the cooling chamber is fixed into one by screw and stainless steel insert, outer shroud
Body；
The cooling chamber upper end is provided with two outlet pipes, and the water outlet that the outlet pipe is arranged on base intracavity by pipeline inflow is total
Pipe, the cooling chamber lower end is provided with two water inlet pipes, in the front end of water-in and water-out house steward provided with one section of water inlet floating pipe, the water inlet
Floating pipe is fed through base and is fixed on by connector on base.
2. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1, it is characterised in that：It is described
Labyrinth seal is used between axle and cooling chamber.
3. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1, it is characterised in that：It is described
Grommet, water-throwing disk and O-ring seal are installed between bearing and cooling chamber.
4. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1, it is characterised in that：It is described
Coil is 8 coils being uniformly distributed along the circumference.
5. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1 or 4, it is characterised in that：
The coil uses enamel-covered wire coiling, and by vacuum paint dipping.
6. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1, it is characterised in that：It is described
Conducting magnet core is axially disconnected, and is divided into two-section, and the stainless steel insert with coil two ends is welded respectively.
7. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1, it is characterised in that：It is described
Sealed between stainless steel ring and the stainless steel insert at two ends using RUBBER O type sealing ring.
8. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1, it is characterised in that：It is described
Outer shroud is using the weak cast iron quality of magnetic conduction ability.
9. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1 or 8, it is characterised in that：
The side of the outer shroud is also equipped with the sophisticated sensor of dynamometry.
10. a kind of low-speed big electric eddy current dynamometer of direct water-cooling according to claim 1, it is characterised in that：Institute
State into the two ends of water floating pipe and be equipped with RUBBER O type sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620750283.6U CN206378230U (en) | 2016-07-18 | 2016-07-18 | A kind of low-speed big electric eddy current dynamometer of direct water-cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620750283.6U CN206378230U (en) | 2016-07-18 | 2016-07-18 | A kind of low-speed big electric eddy current dynamometer of direct water-cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378230U true CN206378230U (en) | 2017-08-04 |
Family
ID=59401705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620750283.6U Expired - Fee Related CN206378230U (en) | 2016-07-18 | 2016-07-18 | A kind of low-speed big electric eddy current dynamometer of direct water-cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206378230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680295A (en) * | 2018-06-23 | 2018-10-19 | 曲阜金升电机有限公司 | torque dynamometer machine |
| CN113250763A (en) * | 2021-05-26 | 2021-08-13 | 中国科学院合肥物质科学研究院 | Eddy current braking turbo expander |
-
2016
- 2016-07-18 CN CN201620750283.6U patent/CN206378230U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680295A (en) * | 2018-06-23 | 2018-10-19 | 曲阜金升电机有限公司 | torque dynamometer machine |
| CN108680295B (en) * | 2018-06-23 | 2024-04-26 | 曲阜金升电机有限公司 | Moment dynamometer |
| CN113250763A (en) * | 2021-05-26 | 2021-08-13 | 中国科学院合肥物质科学研究院 | Eddy current braking turbo expander |
| CN113250763B (en) * | 2021-05-26 | 2024-03-22 | 中国科学院合肥物质科学研究院 | Eddy current braking turbine expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20190718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |