CN201521570U - Liquid viscous loading system - Google Patents
Liquid viscous loading system Download PDFInfo
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- CN201521570U CN201521570U CN 200920049504 CN200920049504U CN201521570U CN 201521570 U CN201521570 U CN 201521570U CN 200920049504 CN200920049504 CN 200920049504 CN 200920049504 U CN200920049504 U CN 200920049504U CN 201521570 U CN201521570 U CN 201521570U
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- liquid
- viscosity
- sealing cover
- pump
- pressure
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- 238000011068 loading method Methods 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000002828 fuel tank Substances 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 16
- 239000010687 lubricating oil Substances 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 235000012431 wafers Nutrition 0.000 abstract 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
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Abstract
A liquid viscous loading system is suitable for applying load torque on a rotating shaft at various rotational speed, and mainly comprises a hydraulic control system and a liquid viscous loading device connected therewith, wherein the hydraulic control system comprises a motor, a two-way flow pump, an electrohydraulic proportion overflow valve, an electromagnetic directional valve, a filter, a pressure detection element, a pressure gauge, a oil tank and the like; the liquid viscous loading device comprises an input shaft, a piston, an external friction wafer, an internal friction wafer, a return spring, a housing, an end cover, a sealing cover, a sealing component and the like; the power is transmitted by utilizing the viscosity or shearing force of the oil film between the friction wafers, the size of the load torque is adjusted by changing the thickness of the oil film, and the two-way flow pump is connected with the liquid viscous loading device through the drive of the motor, so as to form a lubricant channel; the pressure of the lubricant and the size of the load torque are controlled through the electromagnetic directional valve, the proportion overflow valve and the like. The utility model has the advantages of simple system structure, stable loading, long service life, convenient operation and good effect.
Description
Technical field
The utility model relates to a kind of loading system, and especially a kind of being applicable to applies under the various rotating speeds liquid-viscosity loading system of loading moment on the running shaft.
Background technique
Moment of torsion loading method commonly used mainly contains: mechanical load, hydraulic loaded, fluid power loading, electric power loading, the loading of waterpower measurement of power etc., and its main feature is as follows:
(1) mechanical load: in many mechanical load methods, the most obvious with the advantage of disc type brake.It is by the friction between brake disc and the disk type braker brake bush that disc type loads, thereby obtains corresponding braking moment.The advantage that disc type loads is: compact structure, cost are low, technology maturation, be easy to realize; Major defect is: 1. then heat dispersion is poor for brake disc; 2. there are explosion-proof problem in brake disc linear velocity Gao Shiyi sparking, down-hole when using.
(2) hydraulic loaded: hydraulic loaded is that oil hydraulic pump is taked throttling or overflow measure, makes it oil extraction under certain pressure, thereby the Belt Conveyors that connects with it is produced braking moment.Change the flow and the pressure of oil extraction, just can regulate braking moment.The major defect of hydraulic braking sytem is: 1. this mode of braking has good low-speed performance, but still needs a cover mechanical brake Brake stop; 2. the heat energy that can change of hydraulic pressure needs independent cooling system to cool off; 3. control valve is more, the hydraulic system complexity, and Operation and Maintenance is difficulty.
(3) fluid power loads: the main body that fluid power loads is a hydraulic brake, and its rotor shaft connects with the high speed shaft of Belt Conveyors retarder.When conveyor runs well, topping up not in the hydraulic brake active chamber, during braking in active chamber topping up continuously, rotor and stator be by the interaction of working solution, makes the countertorque of rotor form braking moment to Belt Conveyors.The major defect of hydraulic-braking system is: braking moment sharply descended when 1. rotating speed descended, when reduce to working speed 1/3 the time, braking was lost efficacy substantially, needed use the mechanical brake Brake stop, thereby can cause mechanical shock and brake bush to wear and tear; When 2. braking, the transformation of energy that driving medium absorbs becomes heat, needs a cover cooling system, and is not suitable for the hard water with the down-hole; When 3. braking, will fill immediately in the coupler and add driving medium, the braking process time is long; 4. brake system operation, maintenance are difficult.
(4) electric power loads: the electric power deceleration loading device mainly comprises electric dynamometer, electric eddy current dynamometer and magnetic loader.Electric power loads has the control of operating steadily, be easy to, loading accuracy advantages of higher, particularly utilizes generator as deceleration loading device, mechanical energy can be converted into electric energy and feed back to prime mover, has realized the recovery of energy.But it belongs to dynamic braking, its energy consumption height, the bad solution of heat dissipation problem, and the automatical control system that loading needs is very complicated, and cost is very high.
(5) the waterpower measurement of power loads: the waterpower measurement of power loaded because of its test and control accuracy, operation, working life, dynamic response time or the like problems and being eliminated gradually.
More than several loading methods, all exist loading not steadily, short, operation inconvenience in working life, baroque shortcoming, so be necessary to make improvements.
Summary of the invention
Technical problem: the purpose of this utility model is the deficiency that overcomes in the prior art, provides a kind of system simple, loads steadily, long service life, easy to operate liquid-viscosity loading system.
Technological scheme: liquid-viscosity loading system of the present utility model, constitute with the liquid viscosity deceleration loading device that links to each other with hydraulic control system by the hydraulic control system that links to each other with motor, hydraulic control system comprises the duplex pump that is connected with fuel tank, the electricity liquid ratio relief valve that duplex pump left side pump output terminal is provided with pressure gauge and is connected with fuel tank, duplex pump left side pump B by the road links to each other with the lubricating oil inlet of liquid viscosity deceleration loading device; The electricity liquid ratio relief valve that the right pump output terminal of duplex pump is respectively equipped with pressure gauge, pressure detecting element and is connected with fuel tank, the right pump main of duplex pump road is provided with solenoid directional control valve, and solenoid directional control valve A by the road links to each other with the oil through of deceleration loading device;
The liquid viscosity deceleration loading device comprises shell, be fixed on the left end cap and the sealing cover at shell two ends, sealing cover is provided with right end cap, left end cap and sealing cover are provided with input shaft, input shaft one end passes sealing cover and right end cap, the input shaft end cap one side shaft section that keeps left has axle center hole that communicates with its lubricating oil inlet and a plurality of radial holes that communicate with axle center hole, this shaft part is provided with alternate outside friction disc that stacks and interior friction plate, shell is provided with the lubricating oil outlet of the fuel tank of C connection by the road, the sealing cover inboard is provided with and the contacted piston that has groove of friction plate, be provided with the Returnning spring that fits with sealing cover in the groove of piston, oil through is arranged on the sealing cover.
The described duplex pump ingress that is connected with fuel tank is provided with coarse-grain filtering device; The right pump delivery outlet of described duplex pump is provided with fine filter; Described outside friction disc is fixed by bearing pin; Friction plate links to each other with input shaft spline inserting mode in described; The pipeline C that described lubricating oil outlet links to each other with fuel tank is provided with coarse-grain filtering device; Described pressure detecting element is pressure transducer, pressure transmitter, pressure relay or pressure gauge with electric contact.
Beneficial effect: utilize the viscosity or the shear transfer power of oil film between friction plate, the size of the regulating thickness loading torque by changing oil film.In the working procedure, friction plate is immersed in the cooling liquid all the time, and the heat of generation is taken back fuel tank by cooling liquid, spark phenomenon can not occur, has the flame proof function, and friction plate is not fragile by oil-shear power transferring power, long service life; Hydraulic control system mainly is made up of two electricity liquid ratio relief valves and a solenoid directional control valve, and hydraulic element are few, and rate of fault is low, is easy to safeguard; Automatical control system is simple, and is easy to adjust, by the pressure of accurate control electricity liquid ratio relief valve, can realize the purpose that steadily loads; Native system is simple in structure, loads steadily, long service life, few, the convenient operating maintenance of hydraulic parts, and using effect is good, has practicability widely.
Description of drawings
Fig. 1 is a liquid-viscosity loading system structural representation of the present utility model.
Fig. 2 is a liquid viscosity deceleration loading device structural drawing of the present utility model.
Among Fig. 1: 1. motor, 2. fine filter, 3,8. electricity liquid ratio relief valve, 4,13. pressure gauges, 5. pressure detecting element, 6. solenoid directional control valve, 7. liquid viscosity deceleration loading device 9. duplex gear pump, 10,12. coarse-grain filtering devices, 11. fuel tanks.
Among Fig. 2: 7-1. input shaft, 7-2. lubricating oil inlet, 7-3. radial hole, 7-4. friction plate in the outside friction disc, 7-5., the 7-6. bearing pin, 7-7. shell, 7-8. lubricating oil outlet, 7-9. sealing cover II, 7-10. control port, 7-11,7-13 black box, 7-12. right end cap, 7-14. piston, 7-15. Returnning spring, the 7-16. left end cap.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in Figure 1, liquid-viscosity loading system mainly is made up of hydraulic control system and liquid viscosity deceleration loading device, the composition of hydraulic control system: motor 1 connects duplex pump 9, duplex pump 9 inlets passed through strainer 12 connected tanks 11, duplex pump 9 left pump discharges link to each other with pressure gauge 13 with electricity liquid ratio relief valve 8, the lubricating oil inlet 7-2 that connects liquid viscosity deceleration loading device 7 by pipeline B, the lubricating oil outlet 7-8 of liquid viscosity deceleration loading device 7 links to each other with fuel tank 11 with coarse-grain filtering device 10 by pipeline C, forms lubrication passages; The pressure of electricity liquid ratio relief valve 8 control lubricant oil, duplex pump 9 right pump discharges are by fine filter 2 and electricity liquid ratio relief valve 3 and pressure gauge 4, pressure detecting element 5 links to each other, then by solenoid directional control valve 6, pipeline A links to each other with the control port 7-10 of liquid viscosity deceleration loading device 7, be in left valve position during solenoid directional control valve 6 outages, this moment, system was in loaded state, electricity liquid ratio relief valve 3 can the control loaded moment of torsion size, be in right valve position when solenoid directional control valve 6 energising, system is in duplex pump 9 ingress that unloaded state is connected with fuel tank 11 and is provided with coarse-grain filtering device 12.Pressure detecting element 5 is pressure transducer, pressure transmitter, pressure relay or pressure gauge with electric contact.
Shown in Figure 2, the composition of liquid viscosity deceleration loading device: shell 7-7 two ends screw is connected with left end cap 7-16 and sealing cover 7-9, sealing cover 7-9 outboard end is provided with right end cap 7-12, input shaft 7-1 is located at respectively on left end cap 7-16 and the sealing cover 7-9 through bearing, input shaft 7-1 rises by left end cap 7-16 is inner, passes sealing cover 7-9 and right end cap 7-12, has lubricant oil filler opening 7-2 on the left end cap 7-16, have lubricant oil oil outlet 7-8 on the shell 7-7, C connects fuel tank 11 by the road; The input shaft 7-1 a plurality of radial hole 7-3 that end cap 7-16 one side shaft section has the axle center hole that communicates with its lubricating oil inlet 7-2 and communicates with axle center hole that keep left, this shaft part is provided with outside friction disc 7-4 and interior friction plate 7-5, outside friction disc 7-4 and alternate the stacking of interior friction plate 7-5, outside friction disc 7-4 is fixed on left end cap 7-16 and the sealing cover 7-9 by bearing pin 7-6, also can fix by the form that matches with shell 7-7 inboard wall groove.Spline is connected between interior friction plate 7-5 and the input shaft 7-1, and also can match with chute between the input shaft 7-1 is connected.Sealing cover 7-9 inboard is provided with and the contacted piston 7-14 that has groove of friction plate, is provided with the Returnning spring 7-15 that fits with sealing cover 7-9 in the groove of piston 7-14, and oil through 7-10 is arranged on the sealing cover 7-9.
Working principle: drive duplex gear pump 9 by motor 1, duplex gear pump 9 left pump discharges link to each other with pressure gauge 13 with electricity liquid ratio relief valve 8, then B is connected to the lubricating oil inlet 7-2 of liquid viscosity deceleration loading device by the road, the lubricating oil outlet 7-8 of liquid viscosity deceleration loading device links to each other with fuel tank 11 with coarse-grain filtering device 10 by pipeline C, form oil passage, by the pressure of proportional valve control control lubricant oil; Duplex gear pump 9 right pump discharges link to each other with pressure gauge 4, pressure detecting element 5 with electricity liquid ratio relief valve 3 by fine filter 2, link to each other with the control port 7-9 of liquid viscosity deceleration loading device by solenoid directional control valve 6, pipeline A then, the torque of control loaded realizes steadily loading.
Claims (7)
1. liquid-viscosity loading system is characterized in that: it is made of hydraulic control system that links to each other with motor (1) and the liquid viscosity deceleration loading device (7) that links to each other with hydraulic control system; Hydraulic control system comprises the duplex pump (9) that is connected with fuel tank (11), the electricity liquid ratio relief valve (8) that the left pump output terminal of duplex pump (9) is provided with pressure gauge (13) and is connected with fuel tank (11), the left pump of duplex pump (9) B by the road link to each other with the lubricating oil inlet (7-2) of liquid viscosity deceleration loading device (7); The electricity liquid ratio relief valve (3) that the right pump output terminal of duplex pump (9) is respectively equipped with pressure gauge (4), pressure detecting element (5) and is connected with fuel tank (11), the right pump main of duplex pump (9) road is provided with solenoid directional control valve (6), and solenoid directional control valve (6) A by the road links to each other with the oil through (7-10) of liquid viscosity deceleration loading device (7);
Liquid viscosity deceleration loading device (7) comprises shell (7-7), be fixed on the left end cap (7-16) and the sealing cover (7-9) at shell (7-7) two ends, sealing cover (7-9) is provided with right end cap (7-12), left end cap (7-16) and sealing cover (7-9) are provided with input shaft (7-1), input shaft (7-1) end passes sealing cover (7-9) and right end cap (7-12), input shaft (7-1) end cap (7-16) the side shaft section that keeps left has axle center hole that communicates with its lubricating oil inlet (7-2) and a plurality of radial holes (7-3) that communicate with axle center hole, this shaft part is provided with alternate outside friction disc that stacks (7-4) and interior friction plate (7-5), shell (7-7) is provided with the lubricating oil outlet (7-8) of C connection fuel tank (11) by the road, sealing cover (7-9) inboard is provided with and the contacted piston (7-14) that has groove of friction plate, be provided with the Returnning spring (7-15) that fits with sealing cover (7-9) in the groove of piston (7-14), oil through (7-10) is arranged on the sealing cover (7-9).
2. liquid-viscosity loading system according to claim 1 is characterized in that: described duplex pump (9) ingress that is connected with fuel tank (11) is provided with coarse-grain filtering device (12).
3. liquid-viscosity loading system according to claim 1 is characterized in that: the right pump delivery outlet of described duplex pump (9) is provided with fine filter (2).
4. liquid-viscosity loading system according to claim 1 is characterized in that: described outside friction disc (7-4) is fixing by bearing pin (7-6).
5. liquid-viscosity loading system according to claim 1 is characterized in that: friction plate (7-5) links to each other with input shaft (7-1) spline inserting mode in described.
6. liquid-viscosity loading system according to claim 1 is characterized in that: the pipeline C that described lubricating oil outlet (7-8) links to each other with fuel tank (11) is provided with coarse-grain filtering device (10).
7. liquid-viscosity loading system according to claim 1 is characterized in that: described pressure detecting element (5) is pressure transducer, pressure transmitter, pressure relay or pressure gauge with electric contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920049504 CN201521570U (en) | 2009-09-28 | 2009-09-28 | Liquid viscous loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920049504 CN201521570U (en) | 2009-09-28 | 2009-09-28 | Liquid viscous loading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521570U true CN201521570U (en) | 2010-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920049504 Expired - Lifetime CN201521570U (en) | 2009-09-28 | 2009-09-28 | Liquid viscous loading system |
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| Country | Link |
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| CN (1) | CN201521570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156430A (en) * | 2010-12-02 | 2011-08-17 | 威海华东数控股份有限公司 | Device and method for variable-frequency control of thickness of oil film on guide rail |
-
2009
- 2009-09-28 CN CN 200920049504 patent/CN201521570U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156430A (en) * | 2010-12-02 | 2011-08-17 | 威海华东数控股份有限公司 | Device and method for variable-frequency control of thickness of oil film on guide rail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100707 Effective date of abandoning: 20090928 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100707 Effective date of abandoning: 20090928 |