CN201653618U - Testing device for synchronous loading of traction boxes of coal winning machine - Google Patents
Testing device for synchronous loading of traction boxes of coal winning machine Download PDFInfo
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- CN201653618U CN201653618U CN2010201651257U CN201020165125U CN201653618U CN 201653618 U CN201653618 U CN 201653618U CN 2010201651257 U CN2010201651257 U CN 2010201651257U CN 201020165125 U CN201020165125 U CN 201020165125U CN 201653618 U CN201653618 U CN 201653618U
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Abstract
The utility model relates to the field of coal winning machines and particularly relates to a testing device for the synchronous loading of the traction boxes of a higher power coal winning machine. The device is provided with a left traction box, a right traction box, a synchronous speed increaser and a dynamometer, wherein the left traction box and the right traction box are respectively connected with double-extending low-speed shafts of the synchronous speed increaser; the dynamometer is connected with a high-speed shaft of the synchronous speed increaser; a left traction motor is arranged inside the left traction box and is connected with a left frequency converter; a right traction motor is arranged inside the right traction box and is connected with a right frequency converter; either the left frequency converter or the right frequency converter serves as a main frequency converter, and the other serves as an auxiliary frequency converter, and the left frequency converter is connected with the right frequency converter; and the main program controller of the coal winning machine is connected with the main frequency converter. The utility model solves problems that synchronous operation of two traction box is required in the prior art, and by comparing the torque values displayed on torque meters on two sides of the synchronous speed increaser with the double-extending low-speed shafts, the synchronization degree of the two traction boxes can be conveniently judged.
Description
Technical field
The utility model relates to the coalcutter field, is specially a kind of than high-power coal cutter traction case loading synchronous test unit.
Background technology
More high-power (power is generally greater than 400 kilowatts) coalcutter has independently left and right traction case, and each traction electric machine is controlled by independent frequency converter.That is: left Frequency Converter Control left side traction electric machine, the right traction electric machine of right Frequency Converter Control, one-to-one control.When work, main (left and right) frequency converter of coalcutter master program(me) controller control carries out speed governing, and primary transducer is controlled from (right, a left side) frequency converter by communication modes, to guarantee two traction case operations synchronously.Judge synchronous degree by the size of investigating left and right traction case output torque, left and right traction case output torque difference should be within the limits prescribed.
The utility model content
It is a kind of than high-power coal cutter traction case loading synchronous test unit that the purpose of this utility model is to provide, problems such as the two traction casees operation needs that exist in the solution prior art are synchronous, two stretch out the shown torque value of torque gauge of the synchronous speed-increasing gear of slow-speed shaft both sides by relatively having, can judge the synchronization extent of two traction casees easily.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of shearer haulage case loading synchronous test unit, this device is provided with left side traction case, right traction case, synchronous speed-increasing gear and dynamometer machine, left side traction case and right traction case stretch out slow-speed shaft with synchronous speed-increasing gear two respectively and are connected, and dynamometer machine is connected with the high speed shaft of synchronous speed-increasing gear.
Described shearer haulage case loading synchronous test unit is provided with left traction electric machine in the left side traction case, and left traction electric machine is connected with left frequency converter; Be provided with right traction electric machine in the right traction case, right traction electric machine is connected with right frequency converter.
Described shearer haulage case loading synchronous test unit, one in left side frequency converter and the right frequency converter is primary transducer, in left side frequency converter and the right frequency converter another is from frequency converter, and left frequency converter is connected with right frequency converter, and the coalcutter master program(me) controller is connected with primary transducer.
Described shearer haulage case loading synchronous test unit, left frequency converter is connected with the left traction electric machine that draw in the case on a left side by converter cable II; Right frequency converter is connected with the right right traction electric machine that draws in the case by converter cable I.
Described shearer haulage case loading synchronous test unit, two of stretching out slow-speed shaft of speed-increasing gear connect the end of left side traction ring flange II synchronously, the other end of left side traction ring flange II connects torque gauge II, the output terminal of left side traction electric machine connects left side traction ring flange I, is connected by cross universal coupling III between left side traction ring flange I and the torque gauge II.
Described shearer haulage case loading synchronous test unit, the ends of ring flange II are drawn on two another connection right sides of stretching out slow-speed shaft of speed-increasing gear synchronously, the other end of right traction ring flange II connects torque gauge I, the output terminal of right traction electric machine connects right traction ring flange I, is connected by cross universal coupling I between right traction ring flange I and the torque gauge I.
Described shearer haulage case loading synchronous test unit, dynamometer machine is connected by the high speed shaft of dynamometer machine mounting flange with synchronous speed-increasing gear, is connected by cross universal coupling II between the output terminal of dynamometer machine and dynamometer machine mounting flange.
Described shearer haulage case loading synchronous test unit, left side traction case and right traction case place on the base that can heighten, and left side traction case and right traction case are heightened on the base by pressing thick stick to be pressed abd fixed on.
The beneficial effects of the utility model are:
1, adopts the utility model in process of the test,, can judge the synchronization extent of two traction casees easily by the shown torque value of more synchronous speed-increasing gear both sides torque gauge.
2, the utility model is provided with two synchronous speed-increasing gears of slow-speed shaft that stretch out, left and right traction case and synchronous speed-increasing gear two stretch out slow-speed shaft and are connected, left and right traction case drive motor is switched on simultaneously, and two slow-speed shafts that stretch out that equidirectional drives synchronous speed-increasing gear turn round, left and right traction case output speed is identical, is loaded by dynamometer machine at synchronous speed-increasing gear high speed shaft.In the prior art, the rotating speed that flanged dish power is drawn splined shaft becomes lower behind multi-stage speed-reducing, directly load difficult the realization, and by after the synchronous speed-increasing gear speedup, output speed is increased, reduce moment of torsion simultaneously, can realize loading with general loading method (as adopting water conservancy dynamometer machine, electric eddy current dynamometer, electric dynamometer).
3, the left and right traction case of the utility model is the left and right traction case of same coalcutter, and drive motor is identical, and the gear drive ratio of gear is identical.In order to meet shearer haulage case reality of work operating mode more, the utility model with left and right traction case and synchronous speed-increasing gear two stretch out slow-speed shaft by flanged dish power draw splined shaft, universal coupling connects as one, and heighten on the base by pressing thick stick that left and right traction case is pressed abd fixed on, easy to connect.
4, the utility model universal coupling and synchronously speed-increasing gear two stretch out mounting torque instrument between the slow-speed shaft, by relatively reading in the process of the test the shown torque value of speed-increasing gear both sides torque gauge synchronously, can judge the synchronization extent of two traction casees easily.
5, the utility model coalcutter has independently left and right traction case, left and right traction case is positioned on the adjustable high-base, heightens and heighten leading screw on the base and self-locking nut can conveniently be heightened, heighten by heightening base, make planar horizontal, and will heighten leading screw locking with self-locking nut.Be provided with left traction electric machine in the left side traction case, be provided with right traction electric machine in the right traction case, each traction electric machine is controlled by independent frequency converter, one-to-one control.When work, main (left and right) frequency converter of coalcutter master program(me) controller control carries out speed governing, and primary transducer is controlled from (right, a left side) frequency converter by communication modes, to guarantee two traction case operations synchronously.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model principle schematic.
Among the figure, 1 presses thick stick I; 2 left side traction casees; 3 left traction electric machines; 4 right traction electric machines; 5 right traction casees; 6 press thick stick II; 7 right traction ring flange I; 8 cross universal coupling I; 9 torque gauge I; 10 right traction ring flange II; 11 synchronous speed-increasing gears; 12 converter cable I; 13 right frequency converters; 14 dynamometer machine mounting flanges; 15 cross universal coupling II; 16 dynamometer machines; 17 electric boxs; 18 left frequency converters; 19 converter cable II; 20 left side traction ring flange II; 21 torque gauge II; 22 cross universal coupling III; 23 left side traction ring flange I; 24 bases.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Shown in Fig. 1-2, the utility model shearer haulage case loading synchronous test unit, mainly comprise: press thick stick I 1, left side traction case 2, left side traction electric machine 3, right traction electric machine 4, right traction case 5, press thick stick II 6, right traction ring flange I 7, cross universal coupling I 8, torque gauge I 9, right traction ring flange II 10, synchronous speed-increasing gear 11, converter cable I 12, right frequency converter 13, dynamometer machine mounting flange 14, cross universal coupling II 15, dynamometer machine 16, electric box 17, left side frequency converter 18, converter cable II 19, left side traction ring flange II20, torque gauge II21, cross universal coupling III22, left side traction ring flange I 23, base 24, concrete structure is as follows:
Coalcutter has independently left side traction case 2 and right traction case 5, left side traction case 2 and right traction case 5 place on the base 24 that can heighten, heighten and heighten leading screw and self-locking nut on the base 24, can conveniently heighten, by heightening heightening of base 24, make planar horizontal, and will heighten leading screw locking with self-locking nut.Left side traction case 2 and right traction case 5 are respectively by pressing thick stick I 1 and pressing thick stick II6 to be pressed abd fixed on and heighten on the base 24.
Be provided with left traction electric machine 3 in the left side traction case 2, be provided with right traction electric machine 4 in the right traction case 5, each traction electric machine connects frequency converter (left frequency converter 18 and right frequency converter 13) respectively separately.Left side frequency converter 18 is connected with the left traction electric machine 3 that draw in the case 2 on a left side by converter cable II 19, and left frequency converter 18 carries out variable frequency regulating speed control by the left traction electric machine 3 in 19 pairs of left side tractions of converter cable II casees 2; Right frequency converter 13 is connected with the right right traction electric machine 4 that draws in the case 5 by converter cable I 12, and right frequency converter 13 carries out variable frequency regulating speed control by the right traction electric machine 4 in 12 pairs of right traction casees 5 of converter cable I; Adopt the communication of routine to be connected between the left side frequency converter 18 and right frequency converter 13 is respectively primary transducer or from frequency converter, left frequency converter 18 and right frequency converter 13.When work, coalcutter master program(me) controller control primary transducer is carried out speed governing, and primary transducer, is moved synchronously to guarantee two traction casees from frequency converter by communication modes control.
In the present embodiment, left frequency converter 18 and right frequency converter 13 are arranged in the electric appliance box 17, and left frequency converter 18 is connected with right frequency converter 13 by Programmable Logic Controller (PLC), and left frequency converter 18 is controlled right frequency converter 13 by the mode of communication.
The utility model is provided with two synchronous speed-increasing gears 11 of slow-speed shaft that stretch out, left side traction case 2 and right traction case 5 respectively with pair the stretching out slow-speed shaft and be connected of synchronous speed-increasing gear, wherein:
Two of stretching out slow-speed shaft of speed-increasing gear 11 connect the end of left side traction ring flange II20 synchronously, the other end of left side traction ring flange II20 connects torque gauge II21, the output terminal of left side traction electric machine 3 connects left side traction ring flange I 23, is connected by cross universal coupling III22 between left side traction ring flange I 23 and the torque gauge II 21.
The ends of ring flange II 10 are drawn on two another connection right sides of stretching out slow-speed shaft of speed-increasing gear 11 synchronously, the other end of right traction ring flange II 10 connects torque gauge I 9, the output terminal of right traction electric machine 4 connects right traction ring flange I 7, is connected by cross universal coupling I 8 between right traction ring flange I 7 and the torque gauge I 9.
Dynamometer machine 16 is connected by the high speed shaft of dynamometer machine mounting flange 14 with synchronous speed-increasing gear 11, and the high speed shaft of synchronous speed-increasing gear 11 is loaded, and is connected by cross universal coupling II 15 between the output terminal of dynamometer machine 16 and dynamometer machine mounting flange 14.
The course of work of the present utility model is as follows:
(1) left side being drawn case 2, right traction case 5 stretches out slow-speed shaft with synchronous speed-increasing gear 11 two respectively and is connected no-load running.Observe the two of synchronous speed-increasing gear 11 and stretch out the slow-speed shaft sense of rotation, adjust the two sense of rotation, make it identical.
(2) left side is drawn case 2, right traction case 5 and stretch out slow-speed shaft with synchronous speed-increasing gear 11 two simultaneously and be connected, left traction electric machine 3, right traction electric machine 4 are switched on simultaneously.Left side frequency converter 18 speed governing transfer to rated speed with left traction electric machine 3 rotating speeds.
(3) get multiple spot numerical value in nominal load, with 16 ascending values of loading of dynamometer machine, fix at a certain numerical value respectively, left frequency converter 18 downward speed governing are recorded in the shown torque value of synchronous speed-increasing gear both sides torque gauge of value rotating speed point.
(4) right frequency converter 13 speed governing transfer to rated speed with right traction electric machine 4 rotating speeds.
(5) get multiple spot numerical value in nominal load, with 16 ascending values of loading of dynamometer machine, fix at a certain numerical value respectively, right frequency converter 13 downward speed governing are recorded in the shown torque value of synchronous speed-increasing gear both sides torque gauge of value rotating speed point.
(6) by relatively reading in the synchronous shown torque value of speed-increasing gear both sides torque gauge in the process of the test, can judge the synchronization extent of two traction casees easily, left and right traction case output torque difference should be within the limits prescribed.
Claims (8)
1. shearer haulage case loading synchronous test unit, it is characterized in that: this device is provided with left side traction case, right traction case, synchronous speed-increasing gear and dynamometer machine, left side traction case and right traction case stretch out slow-speed shaft with synchronous speed-increasing gear two respectively and are connected, and dynamometer machine is connected with the high speed shaft of synchronous speed-increasing gear.
2. according to the described shearer haulage case of claim 1 loading synchronous test unit, it is characterized in that: be provided with left traction electric machine in the left side traction case, left traction electric machine is connected with left frequency converter; Be provided with right traction electric machine in the right traction case, right traction electric machine is connected with right frequency converter.
3. according to the described shearer haulage case of claim 2 loading synchronous test unit, it is characterized in that: one in left frequency converter and the right frequency converter is primary transducer, in left side frequency converter and the right frequency converter another is from frequency converter, left side frequency converter is connected with right frequency converter, and the coalcutter master program(me) controller is connected with primary transducer.
4. according to the described shearer haulage case of claim 2 loading synchronous test unit, it is characterized in that: left frequency converter is connected with the left traction electric machine that draw in the case on a left side by converter cable II; Right frequency converter is connected with the right right traction electric machine that draws in the case by converter cable I.
5. according to the described shearer haulage case of claim 1 loading synchronous test unit, it is characterized in that: two of stretching out slow-speed shaft of speed-increasing gear connect the end of left side traction ring flange II synchronously, the other end of left side traction ring flange II connects torque gauge II, the output terminal of left side traction electric machine connects left side traction ring flange I, is connected by cross universal coupling III between left side traction ring flange I and the torque gauge II.
6. according to the described shearer haulage case of claim 1 loading synchronous test unit, it is characterized in that: the ends of ring flange II are drawn on two another connection right sides of stretching out slow-speed shaft of speed-increasing gear synchronously, the other end of right traction ring flange II connects torque gauge I, the output terminal of right traction electric machine connects right traction ring flange I, is connected by cross universal coupling I between right traction ring flange I and the torque gauge I.
7. according to the described shearer haulage case of claim 1 loading synchronous test unit, it is characterized in that: dynamometer machine is connected by the high speed shaft of dynamometer machine mounting flange with synchronous speed-increasing gear, is connected by cross universal coupling II between the output terminal of dynamometer machine and dynamometer machine mounting flange.
8. according to the described shearer haulage case of claim 1 loading synchronous test unit, it is characterized in that: left side traction case and right traction case place on the base that can heighten, and left side traction case and right traction case are heightened on the base by pressing thick stick to be pressed abd fixed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201651257U CN201653618U (en) | 2010-04-21 | 2010-04-21 | Testing device for synchronous loading of traction boxes of coal winning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201651257U CN201653618U (en) | 2010-04-21 | 2010-04-21 | Testing device for synchronous loading of traction boxes of coal winning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653618U true CN201653618U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201651257U Expired - Fee Related CN201653618U (en) | 2010-04-21 | 2010-04-21 | Testing device for synchronous loading of traction boxes of coal winning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884460A (en) * | 2014-02-20 | 2014-06-25 | 中国北方发动机研究所(天津) | High speed turbine power test system with self-locking protection |
| CN111843926A (en) * | 2020-07-21 | 2020-10-30 | 中车大连机车车辆有限公司 | Locomotive traction motor combined debugging method and system tool |
-
2010
- 2010-04-21 CN CN2010201651257U patent/CN201653618U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884460A (en) * | 2014-02-20 | 2014-06-25 | 中国北方发动机研究所(天津) | High speed turbine power test system with self-locking protection |
| CN103884460B (en) * | 2014-02-20 | 2016-04-06 | 中国北方发动机研究所(天津) | A kind of high speed turbine dynamometer test system with self-lock protection |
| CN111843926A (en) * | 2020-07-21 | 2020-10-30 | 中车大连机车车辆有限公司 | Locomotive traction motor combined debugging method and system tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140421 |