CN200993610Y - Multi-unit combined hydraulic dynamometer - Google Patents
Multi-unit combined hydraulic dynamometer Download PDFInfo
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- CN200993610Y CN200993610Y CN 200620166653 CN200620166653U CN200993610Y CN 200993610 Y CN200993610 Y CN 200993610Y CN 200620166653 CN200620166653 CN 200620166653 CN 200620166653 U CN200620166653 U CN 200620166653U CN 200993610 Y CN200993610 Y CN 200993610Y
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Abstract
The utility model relates to a dynamometer machine, in particular to a multi-unit combined hydraulic dynamometer provided with a plurality of absorption units, which comprises a mechanical element, a force measuring element, a rectifying element, a water entry element, a water discharge element, a speed measuring element and a pedestal. Wherein, rotors of the mechanical part are arranged on the same principal shaft at intervals and separated by spacing collars and connected together with bolts. In addition, an independent working unit is composed of a rotor, stators on both sides and an external spacing collar. A water inlet is positioned on the stator and connected with the water entry element. The water entry element is composed of a water inlet manifold, a water entry distributor, a rotary spool and a gasket ring. Concave pits are regularly arranged on both end face of the rotor and stator. The utility model is consisted of a plurality of independent absorption units and is capable of detecting motors with varied powers.
Description
Technical field
The utility model relates to a kind of dynamometer machine, especially a kind of multicell combined type hydraulic dynamometer with a plurality of absorptive units.
Background technology
Domestic existing dynamometer machine all is a working cell at present, though some has 2 above absorbing cavities, has only a cover water inlet pipe and water outlet pipe, can't form a plurality of absorptive units.Their adjustable extent of absorbed power is very little, the dynamometer machine of general 1000KW, and vexed car phenomenon when the following Engine Block Test of 650KW loads, can take place in test specification between 650KW～1000KW.Therefore when the user need test multiple engine, must buy many dynamometer machines.In addition, existing dynamometer machine, water valve all is installed in the water delivering orifice of dynamometer machine, and valve openings is more little, and absorbed power is big more, makes dynamometer machine overheated easily.
Summary of the invention
The purpose of this utility model provides a kind of multicell combined type hydraulic dynamometer that is provided with a plurality of absorptive units, and it is made up of a plurality of relatively independent absorptive units, can detect the engine of multiple different capacity, and it has overcome the shortcoming that prior art exists.
The purpose of this utility model is achieved in that it is by airframe components, the dynamometry parts, correcting unit, water inlet member, water drainage part, parts and base composition tests the speed, wherein airframe components is by shaft coupling, main shaft, rotor, stator, end cap and spacer ring are formed, described rotor is installed on the same main shaft at regular intervals, be separated by with spacer ring between the described stator, and link together with bolt, it in the spacer ring rotor, the rotor both sides are close to stator, the stator of each rotor and both sides and peripheral spacer ring are formed an independently working cell, described stator is provided with the inlet opening and links to each other with water inlet member, described water inlet member is by water inlet manifold, the water inlet divider, rotary spool and O-ring seal are formed, wherein the below of water inlet manifold is provided with into water divider, the water inlet divider is connected with the inlet opening with O-ring seal by rotary spool, have apopore to link to each other with water drainage part on the described spacer ring, the both ends of the surface of rotor and stator are provided with the pit of queueing discipline.
Gap between the stator of described rotor and both sides is 2mm.
Described stator is provided with 2 inlet openings.
Described rotary spool is a hand switch.
Described rotary spool front end can be adorned autocontrol valve.
Described main shaft one end is equipped with measure speed gears, and described measure speed gears is 60 teeth.
Described working cell is more than at least two.
Because the utility model has adopted said structure, compared with prior art have the following advantages: the multicell combined type dynamometer machine can be made up of 1 to 10 relatively independent absorptive unit, these working cells, can work independently, can partly work, also can work together, the power test scope of dynamometer machine is increased greatly, I is surveyed 50KW, maximum detection 3300KW.It is wide to survey precision height, good stability, test specification, and the dynamometer machine of one ten unit can support ten original dynamometer machines that vary in size, and the engine from 50KW to 3300KW all can be tested, and has saved the investment funds widely, has saved the occupation of land space of test cabinet.Spool is opened the unit of participation work, and the size of its absorbed power is controlled by divider control inflow, and inflow is many more, and power absorbed is many more, and correspondingly, aquifer yield is also big more, and the heat of taking away is also many more.After installing autocontrol valve additional on the water inlet manifold, also can realize automatic control.In addition, existing dynamometer machine, water valve is installed in the water delivering orifice of dynamometer machine, and valve openings is more little, and absorbed power is big more; The water valve of multicell combined type dynamometer machine is installed in the water inlet of dynamometer machine, and valve openings is big more, and absorbed power is big more; Such benefit is that power is big more, and discharge is big more, and the heat that can take away is also big more, and dynamometer machine is difficult for overheated, is more suitable for long-time high-power operation.The intake pressure of multiple-unit dynamometer machine has been brought up to 0.3MPa also by 0.05MPa simultaneously, the pressure height, and flow velocity is fast, has improved the response speed of dynamometer machine.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an airframe components structural representation of the present utility model;
Fig. 3 is the A portion enlarged drawing of Fig. 2;
Fig. 4 is a stator structure synoptic diagram of the present utility model;
Fig. 5 is a rotor structure synoptic diagram of the present utility model;
Fig. 6 is a water inlet member structural representation of the present utility model.
Embodiment
The multicell combined type hydraulic dynamometer, it is combined by a plurality of independently working cells, these are the working cell independently, and oneself independently water inlet pipe and drainpipe are all arranged, under the constant situation of water outlet (draining) resistance, size by the control inflow, the size of control absorbed power, water inlet pipe is equipped with switching mechanism, during unlatching, the water of certain pressure just enters absorptive unit, this cell operation; After closing, anhydrous entering, do not work in this unit.During real work,, regulate water inlet switch, can make the absorptive unit work of varying number according to the watt level of engine.Like this, a dynamometer machine can adapt to the test of various engines, and it is maximum that working range reaches.These working cells can work independently, and can partly work, and also can work together, and the power test scope of dynamometer machine is increased greatly.The multicell combined type dynamometer machine is on structure, mainly by forming (see figure 1) with lower member: by airframe components 1, dynamometry parts 2, the parts 3 that test the speed, water inlet member 4, correcting unit 5, water drainage part 6 and base 19.
Specify as follows:
One, airframe components (see Fig. 2, be combined as example with 6 working cells among the figure).
Airframe components 1 is the critical piece that absorbs moment of torsion.It is made up of shaft coupling 7, main shaft 8, rotor 9, stator 10, end cap 11, spacer ring 12 etc., and a plurality of rotors 9 are installed on the same main shaft 8 at regular intervals, are separated by with spacer ring 12 between stator 10 and the stator, and link together with attachment bolt 18.It in the spacer ring 12 rotor 9, rotor 9 both sides are close to stator 10, the gap is very little, have only 2mm, each rotor 9 is formed an independently working cell with the stator 10 of both sides and peripheral spacer ring 12, has inlet opening 17 to link to each other with water inlet member 4 on the stator 10, there is apopore to link to each other on the spacer ring 12 with water drainage part 6, during work, water enters working chamber by inlet opening 17, and discharges from apopore.The both ends of the surface of rotor 9 and stator 10 have the pit (seeing Fig. 4 and Fig. 5) of queueing discipline.
During work, engine is by shaft coupling 7, with the rotor 9 synchronous high-speeds rotation that is fixed on the dynamometer machine main shaft 8, water enters in the working chamber of stator 10 and rotor 9 formation through the inlet opening 17 on the stator 10, water in rotor 9 pits is subjected to action of centrifugal force, impacting stator 10 fiercely continuously, in rotor 9 pits and stator 10 pits, form strong water turbulence, water makes mechanical energy be converted into heat energy through fierce friction back heating, and use stator 10 deflections, by dynamometry parts on the stator 10 2 deflecting torque is changed into power, pressure transducer is passed to automatically controlled with the signal of power, demonstrates the size of power on the moment with numeral.
All there are independently water inlet and osculum in each working cell, does not disturb mutually.Each unit absorbed power is 330KW to the maximum, and minimum is 0KW, on physical construction, can form a dynamometer machine in a unit, also can form a dynamometer machine in a plurality of unit, and a dynamometer machine is formed in 10 unit the most for a long time.When the user chooses, can select the dynamometer machine of forming by plurality of units according to the peak power of self engine of surveying.
A unit absorption maximum power 330KW;
Two unit absorption maximum power 670KW;
Three unit absorption maximum power 1000KW;
Four unit absorption maximum power 1300KW;
Five unit absorption maximum power 1600KW;
Six single no absorption maximum power 2000KW;
Seven unit absorption maximum power 2300KW;
Eight unit absorption maximum power 2700KW;
Nine unit absorption maximum power 3000KW;
Ten unit absorption maximum power 3300KW.
Why say independently working cell, because all there are independently water inlet, drainage mechanism in each working cell.There are two inlet openings 17 each working cell on stator 10, these two inlet opening 17 (see figure 4)s, by 14 controls of water inlet divider, all there is a rotary spool 15 each 17 top, inlet opening, for anticlockwise spool and the right rotation spool of being divided into easy to use, it communicates with water inlet manifold 13, opens rotary spool 15, and water just injects working chamber; Close rotary spool 15, just the water route of working chamber is injected in disconnection, anhydrous working chamber, though rotor 9 (see figure 5)s are being rotated, it is dry run, stirs air, and it is zero no better than to absorb moment of torsion.Utilize what of water inlet divider 14 (see figure 6) Control work unit, the size of the absorption power of decision dynamometer machine.Utilize water inlet divider 14 simultaneously, can make a cell operation, also can make several or whole cell operation, to adapt to the needs of the engine that varies in size.And, the quantity of working cell can be set according to different demands, this is the place of main inventive point of the present utility model.
Domestic existing dynamometer machine all is a working cell at present, (though 2 above absorbing cavities are perhaps arranged, has only a cover water inlet pipe and water outlet pipe, can't form a plurality of absorptive units.) adjustable extent of absorbed power is very little, the dynamometer machine of general 1000KW, vexed car phenomenon when the following Engine Block Test of 650KW loads, can take place in test specification between 650KW～1000KW.When the user need test multiple engine, must buy many dynamometer machines.And the multicell combined type dynamometer machine is made up of 1 to 10 relatively independent absorptive unit, and I is surveyed 50KW, maximum detection 3300KW.The dynamometer machine of one ten unit can support ten original dynamometer machines that vary in size, and the engine from 50KW to 3300KW all can be tested, and has saved the investment funds widely, has saved the occupation of land space of test cabinet.This novel dynamometer machine is an important breakthrough on the engine measuring technology.
Two, water inlet member (seeing Fig. 6, main invention part of the present utility model).
Water inlet member 4 its functions one are by switch rotary spool 15, work or do not work in control and decision working cell, the 2nd, and to the unit of working, by the size of control inflow, the size (need add pneumatic in addition or electrically operated valve) of control absorbed power.Mainly form by water inlet manifold 13, water inlet divider 14, rotary spool 15, O-ring seal 16 etc.Water inlet divider 14 is a cylinder, which is provided with several holes, rotary spool 15 is housed on each hole, two inlet openings 17 of a working cell of per two rotary spools, 15 controls in the water inlet divider 14, be called one group of valve, whether work the dynamometer machine working cell, decide by opening several groups of valves on the water inlet divider 14, the unit of working, two rotary spools 15 of one group of valve are opened simultaneously, and the press water of 0.3Mpa is pressed into working chamber by rotary spool 15 by the inlet opening on the stator 10 17 in the water inlet manifold 13; Two water inlet rotary spools 15 on the working cell of not working are closed, and water inlet manifold 13 is cut off with the path of working chamber, has only air in the working chamber, does not have water, and rotor 9 can only dally, and does not absorb moment of torsion.
Rotary spool 15 is opened the unit of participation work, and the size of its absorbed power is controlled by water inlet divider 14 control inflows.Inflow is many more, and power absorbed is many more, and correspondingly, aquifer yield is also big more, and the heat of taking away is also many more.After installing autocontrol valve additional on the water inlet manifold 13, can realize automatic control.
Three, dynamometry parts
Body is bearing on the pendulum bearing in the bearing bracket stand, and body has small swing in test, and pendulum bearing is also along with small rotation is arranged.
The model of pressure transducer can be big according to the model that the size of measured power is selected.If the engine of motivation and counter-rotating is just being transmitted in test, then must use tension-compression sensor, can survey the power of both forward and reverse directions.Pressure transducer is connected on the base 19 with bolt.
Four, water drainage part
Multicell combined type dynamometer machine inflow temperature requires to be no more than 38 ℃, and Maximum temperature at discharging is no more than 80 ℃.When temperature at discharging condensate surpasses 80 ℃, can regulate by the outlet gate valve of outwarding winding.
Five, correcting unit
The survey precision of multicell combined type hydraulic dynamometer is ± 0.2%FS, and the precision of dynamometer machine embodies by quiet calibration device, and quiet school precision can reach, and dynamic accuracy also is bound to reach, because kinetic friction coefficient is less than coefficient of static friction.Easy in order to calculate, the distance of school, quiet school arm lengths from the alignment of shafts to the triangular blade is made as 1019.72mm, press the 1Kg counterweight, measurement and control instrument shows 10Nm, the 2Kg counterweight shows that 20Nm...... is until full scale.In order to improve measuring accuracy, improve sensitivity, on the correction arm, adorn triangular blade.The timing error≤± 0.2%FS.
The computing formula of power:
P＝Nn/9549
In the formula: the power of the tested engine of P-... ..KW;
The moment of torsion that the N-measurement and control instrument shows ... ... .Nm;
The rotating speed of n-engine ... ... ... 1/nim.
Six, the parts that test the speed
The parts 3 that test the speed are made up of measure speed gears, the head that tests the speed, the head bracket that tests the speed, and are prior art.
End at dynamometer machine main shaft 8 is equipped with 60 tooth measure speed gearses in addition, rotates synchronously with dynamometer machine, and the magnetic induction of installing on the head bracket that the tests the speed head that tests the speed is converted into electric impulse signal with rotating speed, is reduced into the rotating speed digital signal when reaching electronic measurement and control system.Range rate error is no more than ± 1rpm, more accurate than prior art.
Concrete principle of work of the present utility model is as follows: the characteristics of multicell combined type hydraulic dynamometer are: it is wide to survey precision height, good stability, test specification, the dynamometer machine of 10 unit, little of 50KW, can both test a platform dynamometer at most greatly to 3300KW.It is the change momentum dynamometer machine of control water ring, thus test during low-powered engine, good stability.
The multicell combined type hydraulic dynamometer, be made up of following parts: airframe components 1, water inlet member 4, dynamometry parts 2, water drainage part 6, correcting unit 5, test the speed parts 3 and base 19 etc. are formed in addition.Wherein:
Airframe components 1 is made up of shaft coupling 7, main shaft 8, rotor 9, spacer ring 12, stator 10, high-speed bearing, pendulum bearing, bearing seat, base 19 etc.Shaft coupling 7 connects with main shaft 8, is keyless, selects interference fit joint for use, during assembling shaft coupling 7 is placed in the high temperature oil and boils, and behind the endoporus expanded by heating, hot jacket with the dismounting specific purpose tool, can be pulled down shaft coupling during repairing on main shaft 8.
A plurality of unit that work alone are arranged on the body, each working cell all has independently advances drainage mechanism, the user is according to the size of engine capacity, choose what of working cell, 330KW can be tested in each working cell, two unit water intaking valves are opened simultaneously, can test 660KW, and 10 unit water intaking valves are opened simultaneously and can be tested 3300KW.For example: the engine of 450KW, choose and use plurality of units? 330KW＜450KW＜660KW, promptly the power of a unit dislikes little, within the power bracket of two unit, just selects two working cells for use, opens the water intaking valve of two unit, can satisfy.
Water inlet member 4 is made up of other parts such as water inlet manifold 13, water inlet divider 14, rotary spool 15 and O-ring seals 16, water inlet manifold 13 water inlet divider 14, the rotary spool 15 that many group control water inlets are arranged on the water inlet divider 14, all can open separately and can close, as 1-1,2-2,3-3,4-4......, there is one group of water intaking valve each working cell, one group of water intaking valve has two rotary spools 15, must open simultaneously or close simultaneously, spool shows that horizontal level represents that water inlet position pipeline connects, and spool shows that the upright position represents that inlet pipeline disconnects.Water drainage part 6 is the water ring thickness in the Control work chamber, promptly controls the size of absorbed power, and the water yield that TT﹠C system instruction actuator passes through is big more, and the water ring in the working chamber is thick more, and absorbed power is big more; Otherwise water ring is thin more, and absorbed power is more little.
Main drain is connecting main drainpipe, secondary drainpipe, and the function of main drain is that the water in the major and minor drainpipe of collection drains into outside the survey worker machine, flow to the cooling pond cooling.Engine drive rotor 9 does is at a high speed mixing WATER AS FLOW MEDIUM, and coolant-temperature gage raises and discharges from main drain.The effect of gate valve is the height of control temperature at discharging condensate, if temperature at discharging condensate surpasses 65 ℃, then gate valve is opened, and temperature at discharging condensate is lower than 50 ℃ of C, and gate valve is closed.The freeness of dynamometer machine is controlled at below 65 ℃ to well, and the high more incrustation of water temperature is fast more, and the incrustation layer thickens the test performance that can reduce dynamometer machine.Preferably the water of dynamometer machine circulates with soft water.
Correcting unit 5 is waited until and is formed by correction arm, triangular blade, prolong knot beam, scale pan.
The precision (0.002FS) that correcting unit 5 is proofreaied and correct dynamometer machine.Distance from the alignment of shafts of dynamometer machine to the triangular blade of proofreading and correct arm is 973.8mm, at timing, load onto aligning gear, begin to proofread and correct, before adding counterweight, the TT﹠C system moment of torsion must return to zero, begin correction and add counterweight 1Kg TT﹠C system demonstration 10N, the 2Kg counterweight shows 20N...... until full scale, and loading or off-load error can not surpass 0.002FS at every turn, if reach not 0.002FS precision, want fine debugging, look for reason in many ways, pull down means for correcting in case of necessity, again adorned, error can not surpass 0.002FS.The grade of counterweight is very important, must be not less than the fourth class counterweight of national standard, and counterweight is lower than the stated accuracy that the fourth class can reduce dynamometer machine.
The parts 3 that test the speed are waited until by measure speed gears, tachogenerator and form, and measure speed gears is fixed on the main shaft of dynamometer machine and the tachogenerator coupling, and tachogenerator is passed to TT﹠C system with rotary speed signal and shown n/nim with numeral.Rotation speed n and moment of torsion N that engine has been arranged can calculate the power of engine.
The rating formula of dynamometer machine: P=Nn/9549......... (KW);
P...... power (KW) in the formula;
N...... moment of torsion;
N....... rotating speed (rotations per minute, 1/nim):
Lubricated, dynamometer machine has two local needs to lubricate one. and the pendulum bearing that is supporting body in bearing bracket stand need lubricate, and it only does small swing in test, dispatch from the factory or in raceway, be brushed with lithium saponify No. two during overhaul, just can use and to refuel in 6000 hours.Two. supporting the bearing of main shaft upper rotor part high speed rotating in the bearing shell, with the L-CF32 bearing oil, bearing bore communicates with lubricator cup, and the oil level line will refuel below object line in the lubricating cup, and half highly gets final product to add to lubricating cup.Just begun to change in one month once oil, changed once every three months later on.Change oil and the dirty oil in the bearing bore will be cleaned up, new clean oil reinjects.
Claims (7)
1. multicell combined type hydraulic dynamometer, by airframe components (1), dynamometry parts (2), parts (3) test the speed, water inlet member (4), correcting unit (5), water drainage part (6) and base (19) are formed, wherein airframe components (1) is by shaft coupling (7), main shaft (8), rotor (9), stator (10), end cap (11) and spacer ring (12) are formed, it is characterized in that: described rotor (9) is installed on the same main shaft (8) at regular intervals, be separated by with spacer ring (12) between the described stator (10), and link together with attachment bolt (18), in the spacer ring (12) rotor (9), rotor (9) both sides are close to stator (10), each rotor (9) is formed an independently working cell with the stator (10) of both sides and peripheral spacer ring (12), described stator (10) is provided with inlet opening (17) and links to each other with water inlet member (4), described water inlet member (4) is by water inlet manifold (13), water inlet divider (14), rotary spool (15) and O-ring seal (16) are formed, wherein the below of water inlet manifold (13) is provided with into water divider (14), water inlet divider (14) is connected with inlet opening (17) with O-ring seal (16) by rotary spool (15), have apopore to link to each other with water drainage part (6) on the described spacer ring (12), the both ends of the surface of rotor (9) and stator (10) are provided with the pit of queueing discipline.
2. multicell combined type hydraulic dynamometer according to claim 1 is characterized in that: the gap between the stator (10) of described rotor (9) and both sides is 2mm.
3. multicell combined type hydraulic dynamometer according to claim 1 is characterized in that: described stator (10) is provided with 2 inlet openings (17).
4. multicell combined type hydraulic dynamometer according to claim 1 is characterized in that: described rotary spool (15) is a hand switch.
5. multicell combined type hydraulic dynamometer according to claim 1 is characterized in that: described rotary spool (15) front end can be adorned autocontrol valve.
6. multicell combined type hydraulic dynamometer according to claim 1 is characterized in that: described main shaft (8) one ends are equipped with measure speed gears, and described measure speed gears is 60 teeth.
7. multicell combined type hydraulic dynamometer according to claim 1 is characterized in that: described working cell is more than at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620166653 CN200993610Y (en) | 2006-12-20 | 2006-12-20 | Multi-unit combined hydraulic dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620166653 CN200993610Y (en) | 2006-12-20 | 2006-12-20 | Multi-unit combined hydraulic dynamometer |
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| CN200993610Y true CN200993610Y (en) | 2007-12-19 |
Family
ID=38946684
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620166653 Expired - Lifetime CN200993610Y (en) | 2006-12-20 | 2006-12-20 | Multi-unit combined hydraulic dynamometer |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353489A (en) * | 2011-07-21 | 2012-02-15 | 凯迈(洛阳)机电有限公司 | Method for testing double-direction torque of eddy current dynamometer |
| CN102680232A (en) * | 2011-03-17 | 2012-09-19 | 福建省晋江市三力机车有限公司 | Loading test method of lawn mower |
| CN102814633A (en) * | 2011-11-30 | 2012-12-12 | 凯迈(洛阳)机电有限公司 | Method for adjusting air gap of rotor of disc type electrical eddy current dynamometer |
| CN103308228A (en) * | 2013-06-25 | 2013-09-18 | 江苏中兴西田数控科技有限公司 | Motor torque detection device and motor torque detection method thereof |
| CN103592131A (en) * | 2013-11-20 | 2014-02-19 | 中国南方航空工业(集团)有限公司 | Engine detection method, device and system |
| CN104483053A (en) * | 2014-12-25 | 2015-04-01 | 深圳市博尔创意文化发展有限公司 | Torque measuring device of small engine |
| CN107449961A (en) * | 2017-09-13 | 2017-12-08 | 中国船舶重工集团公司第七0三研究所 | A kind of through-flow structure of novel hydropower dynamometer |
| CN110529507A (en) * | 2019-08-15 | 2019-12-03 | 上海中船三井造船柴油机有限公司 | The connection and its method of adjustment of hydraulic dynamometer and boat diesel engine |
| CN111504532A (en) * | 2020-05-09 | 2020-08-07 | 中国船舶重工集团公司第七0三研究所 | Measurement and control system of hydraulic dynamometer |
| CN111678703A (en) * | 2020-06-22 | 2020-09-18 | 陈剑辉 | Engine dynamometer control and data acquisition system |
| CN113640004A (en) * | 2021-08-27 | 2021-11-12 | 潘中学 | Power detection device for modifying vehicle engine |
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2006
- 2006-12-20 CN CN 200620166653 patent/CN200993610Y/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680232A (en) * | 2011-03-17 | 2012-09-19 | 福建省晋江市三力机车有限公司 | Loading test method of lawn mower |
| CN102680232B (en) * | 2011-03-17 | 2014-12-31 | 福建省晋江市三力机车有限公司 | Loading test method of lawn mower |
| CN102353489B (en) * | 2011-07-21 | 2013-05-08 | 凯迈(洛阳)机电有限公司 | Method for testing double-direction torque of eddy current dynamometer |
| CN102353489A (en) * | 2011-07-21 | 2012-02-15 | 凯迈(洛阳)机电有限公司 | Method for testing double-direction torque of eddy current dynamometer |
| CN102814633A (en) * | 2011-11-30 | 2012-12-12 | 凯迈(洛阳)机电有限公司 | Method for adjusting air gap of rotor of disc type electrical eddy current dynamometer |
| CN102814633B (en) * | 2011-11-30 | 2014-12-10 | 凯迈(洛阳)机电有限公司 | Method for adjusting air gap of rotor of disc type electrical eddy current dynamometer |
| CN103308228B (en) * | 2013-06-25 | 2016-01-27 | 江苏中兴西田数控科技有限公司 | A kind of Motor torque pick-up unit and the method for detecting Motor torque thereof |
| CN103308228A (en) * | 2013-06-25 | 2013-09-18 | 江苏中兴西田数控科技有限公司 | Motor torque detection device and motor torque detection method thereof |
| CN103592131A (en) * | 2013-11-20 | 2014-02-19 | 中国南方航空工业(集团)有限公司 | Engine detection method, device and system |
| CN104483053A (en) * | 2014-12-25 | 2015-04-01 | 深圳市博尔创意文化发展有限公司 | Torque measuring device of small engine |
| CN107449961A (en) * | 2017-09-13 | 2017-12-08 | 中国船舶重工集团公司第七0三研究所 | A kind of through-flow structure of novel hydropower dynamometer |
| CN107449961B (en) * | 2017-09-13 | 2023-05-26 | 中国船舶重工集团公司第七0三研究所 | Novel hydraulic dynamometer through-flow structure |
| CN110529507A (en) * | 2019-08-15 | 2019-12-03 | 上海中船三井造船柴油机有限公司 | The connection and its method of adjustment of hydraulic dynamometer and boat diesel engine |
| CN111504532A (en) * | 2020-05-09 | 2020-08-07 | 中国船舶重工集团公司第七0三研究所 | Measurement and control system of hydraulic dynamometer |
| CN111678703A (en) * | 2020-06-22 | 2020-09-18 | 陈剑辉 | Engine dynamometer control and data acquisition system |
| CN113640004A (en) * | 2021-08-27 | 2021-11-12 | 潘中学 | Power detection device for modifying vehicle engine |
| CN113640004B (en) * | 2021-08-27 | 2024-05-14 | 江苏长盈机械有限公司 | Power detection device for refitting vehicle engine |
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