CN202065438U - Multifunctional hydraulic coupling - Google Patents
Multifunctional hydraulic coupling Download PDFInfo
- Publication number
- CN202065438U CN202065438U CN2011201734447U CN201120173444U CN202065438U CN 202065438 U CN202065438 U CN 202065438U CN 2011201734447 U CN2011201734447 U CN 2011201734447U CN 201120173444 U CN201120173444 U CN 201120173444U CN 202065438 U CN202065438 U CN 202065438U
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- speed
- oil pump
- input
- hydraulic coupling
- variable
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Abstract
The utility model relates to a multifunctional hydraulic coupling, which belongs to the field of mechanical speed control and can achieve fixed-speed input and variable-speed output and also variable-frequency input and variable-speed output. The multifunctional hydraulic coupling comprises an input gear, a speed increasing gear and a working oil pump, and is characterized in that an input shaft is used for driving the input gear, and the input gear is engaged with the speed increasing gear; and the working oil pump is driven by a working oil pump motor. Due to improvement based on a hydraulic coupling, the multifunctional hydraulic coupling has two functions: 1. the function of fixed-speed input and variable-speed output (achieved through the hydraulic coupling); and 2. the function of variable-frequency input and variable-speed output (achieved through the speed increasing gear). The improved hydraulic coupling has the functions of speed-regulating output during operation at the power frequency and speed-regulating output during operation at variable frequencies (when only the speed increasing gear works), and thus the multifunctional hydraulic coupling is formed. The multifunctional hydraulic coupling is suitable for operation at the power frequency and at variable frequencies, and the function of operation at variable frequencies is additionally achieved based on the hydraulic coupling.
Description
Technical field
The utility model belongs to the mechanical speed governors field.
Background technique
Major pant item in the enterprise production process such as domestic electric power, metallurgy, chemical industry, mine, iron and steel, the machinery that needs to be equipped with the speedup mode has two kinds, and the one, step-up gear, the 2nd, acceleration type fluid coupling.The acceleration type fluid coupling has speed-regulating function simultaneously.Generally need speedup to need the major pant item of speed governing again,, all be furnished with the acceleration type fluid coupling as the electrically driven feedpump in thermal power plant.The best efficiency point of fluid coupling is designed to rated revolution, under the operating mode of maximum output.Its efficiency curve be initial point and with the straight line at coordinate axes angle at 45.Fluid coupling is in service away from this operating mode, departs from that the multiple-effect rate is low more more.For cutting down the consumption of energy, fluid coupling need be operated in rated speed, under the maximum output operating mode, supporting frequency variator, frequency control of motor speed operation.Fluid coupling operates in rated speed, and under the maximum output operating mode, role is exactly the function of step-up gear.But hydraulic couplers is by constant speed input design, and main oil pump is shaft-driven by input, can't keep system oil pressure normal during the frequency conversion input, therefore must transform the main oil pump driving mode.
Summary of the invention
The purpose of this utility model provide a kind of promptly can constant speed the output of input speed change again can the output of frequency conversion input speed change the multifunctional hydraulic Coupler.
The utility model comprises input gear, overdrive gear, work oil pump, it is characterized in that: input shaft drives the input gear, input gear and overdrive gear engagement; The work oil pump drives by the working oil pump motor.
The utility model input shaft drives the input gear, input gear and overdrive gear engagement; The work oil pump drives by the working oil pump motor; Check valve is housed in multi-functional emergency bearing oil pump outlet and lubricant oil oil cooler inlet duct joins, and multi-functional emergency bearing oil pump passes through motoring.
This practical newly exactly hydraulic couplers transformation makes it have two kinds of functions, and the one, constant speed input speed change output function (hydraulic couplers function), the 2nd, frequency conversion input, speed change output function (overdrive gear box function).The speed governing output function of (only play step-up gear effect) when speed governing output function when improved hydraulic couplers has had power frequency operation simultaneously and converting operation, Here it is multifunctional hydraulic Coupler.The multifunctional hydraulic coupler not only is applicable to power frequency operation but also be applicable to converting operation, has increased a converting operation function than hydraulic couplers.
The hydraulic couplers best efficiency point is designed to declared working condition, the rated speed point, and in service away from declared working condition, Rate of load condensate is low more, and operational efficiency is low more; The design efficiency of frequency variator remains at more than 95% more than 20% Rate of load condensate, is departing under the speed governing operating mode that exceeds the force most, and frequency variator efficient is far above fluid coupling efficient.
Description of drawings
Fig. 1 is that the utility model improves structural representation for first kind;
Fig. 2 is that the utility model improves structural representation for second kind;
Fig. 3 is frequency control of motor speed of multifunctional hydraulic Coupler and hydraulic couplers speed efficiency characteristic curve comparison diagram.
Embodiment
The utility model improves structure for first kind:
Comprise input gear 3, overdrive gear 1, work oil pump 4, input shaft 2 drives input gear 3, input gear 3 and overdrive gear 1 engagement; Work oil pump 4 drives by working oil pump motor 5.
The utility model improves structure for second kind:
Input shaft 2 drives input gear 3, input gear 3 and overdrive gear 1 engagement; Work oil pump 4 drives by working oil pump motor 5; Check valve 7 is housed in multi-functional emergency bearing oil pump 9 outlets and lubricant oil oil cooler 6 inlet ducts join, and multi-functional emergency bearing oil pump 9 drives by motor 8.
The utility model is the multifunction that realizes fluid coupling.When keeping the constant speed input, on the basis of hydraulic coupler-speed regulation function, increase the speed change output function (fluid coupling function and overdrive gear box function are united two into one) of frequency conversion input (only playing the step-up gear effect).
Two kinds of functions of the present utility model are switched by the fluid coupling scoop tube, when scoop tube is fixed on the maximum opening position, and output overdrive gear box function.Scoop tube leaves the maximum opening position, when regulating control with scoop tube, and output fluid coupling function.
Output fluid coupling function during the input of the utility model power frequency constant speed; During the frequency control of motor speed input, output overdrive gear box function.
The utility model can be realized the switchover operation of power frequency and frequency conversion, can realize energy saving purposes during converting operation; During the frequency conversion fault, can switch to power frequency operation, guarantee safe and reliable.
The utility model is applicable to the frequency conversion transformation of operating hydraulic coupler-speed regulation machinery, also is applicable to the energy-saving application that needs power frequency and frequency conversion to switch the electric mechanical equipment of speed governing in the new construction.
Scientific and technological invention point of the present utility model is the redesign casing, hydraulic couplers is imported shaft-driven main oil pump, change by Wechselstrommotor and directly drive,, auxiliary lubrication pump is changed into emergency bearing oil pump or in lubricant oil oil cooler entry design an emergency bearing oil pump is installed as the work oil pump.
Embodiment of the present utility model is the housing structure that needs the redesign fluid coupling according to of the present utility model, changes main oil pump into the motor direct drive mode by the input shaft driving mode, as the work oil pump.Auxiliary lubrication pump is changed into the emergency bearing oil pump of work oil pump.Automatic interlock starts emergency bearing oil pump during the working oil failure of pump.
Perhaps cancel auxiliary lubrication pump, the emergency bearing oil pump of a main oil pump is installed in lubricant oil oil cooler entry design.Automatic interlock starts emergency bearing oil pump during the working oil failure of pump.
Different load rate frequency variator efficient and fluid coupling efficient are compared as follows table:
| Rate of load condensate | Frequency variator efficient | Coupler efficient | Efficient is poor |
| % | % | % | % |
| 90 | 98.5 | 93 | 5.5 |
| 80 | 97.8 | 87 | 10.8 |
| 70 | 97.5 | 69 | 28.5 |
| 60 | 97 | 59 | 38 |
| 50 | 96.2 | 49 | 47 |
| 40 | 95.8 | 39 | 57 |
As seen from the above table, when Rate of load condensate is lower than 90% operating mode,, change frequency control of motor speed into, can effectively improve operational efficiency, can realize saving energy and reduce the cost hydraulic coupler-speed regulation.
Claims (2)
1. a multifunctional hydraulic Coupler comprises input gear, overdrive gear, work oil pump, it is characterized in that: input shaft drives the input gear, input gear and overdrive gear engagement; The work oil pump drives by the working oil pump motor.
2. a multifunctional hydraulic Coupler is characterized in that: input shaft drive input gear, input gear and overdrive gear engagement; The work oil pump drives by the working oil pump motor; Check valve is housed in multi-functional emergency bearing oil pump outlet and lubricant oil oil cooler inlet duct joins, and multi-functional emergency bearing oil pump passes through motoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201734447U CN202065438U (en) | 2011-05-27 | 2011-05-27 | Multifunctional hydraulic coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201734447U CN202065438U (en) | 2011-05-27 | 2011-05-27 | Multifunctional hydraulic coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065438U true CN202065438U (en) | 2011-12-07 |
Family
ID=45059301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201734447U Ceased CN202065438U (en) | 2011-05-27 | 2011-05-27 | Multifunctional hydraulic coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065438U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865348A (en) * | 2012-09-29 | 2013-01-09 | 张文海 | Power frequency-variable frequency switching type liquid coupling |
| CN102865232A (en) * | 2012-09-29 | 2013-01-09 | 张文海 | Energy saving system of electrically driven feed pump of power frequency-variable frequency switching type liquid coupling |
| CN103939556A (en) * | 2014-02-09 | 2014-07-23 | 张文海 | Frequency-variable and energy-saving constant-oil-pressure automatic control system of fuel feed pump of fluid coupler |
-
2011
- 2011-05-27 CN CN2011201734447U patent/CN202065438U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865348A (en) * | 2012-09-29 | 2013-01-09 | 张文海 | Power frequency-variable frequency switching type liquid coupling |
| CN102865232A (en) * | 2012-09-29 | 2013-01-09 | 张文海 | Energy saving system of electrically driven feed pump of power frequency-variable frequency switching type liquid coupling |
| CN103939556A (en) * | 2014-02-09 | 2014-07-23 | 张文海 | Frequency-variable and energy-saving constant-oil-pressure automatic control system of fuel feed pump of fluid coupler |
| CN103939556B (en) * | 2014-02-09 | 2016-04-20 | 张文海 | The permanent oil pressure automatic control system of fluid coupling oil feed pump energy-saving and frequency-variable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGCHUN ERA NEW MACHINARY AND ELECTRICITY TECHNO Free format text: FORMER OWNER: ZHANG HUANYU Effective date: 20120420 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120420 Address after: 130022, 88 southeast Lake Road, Jilin, Changchun Patentee after: Changchun Era New Machinery and Electricity Technology Co., Ltd. Address before: 130022 Jilin province Changchun Nanguan District, South Lake Road No. 88 international Hongcheng garden building 21, room 104 Patentee before: Zhang Huanyu |
|
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20130923 Decision number of declaring invalidation: 21345 Granted publication date: 20111207 |