CN102530488B - Liquid viscosity controllable starting and braking integrated device for belt conveyor - Google Patents
Liquid viscosity controllable starting and braking integrated device for belt conveyor Download PDFInfo
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- CN102530488B CN102530488B CN201210000968.5A CN201210000968A CN102530488B CN 102530488 B CN102530488 B CN 102530488B CN 201210000968 A CN201210000968 A CN 201210000968A CN 102530488 B CN102530488 B CN 102530488B
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Abstract
The invention discloses a liquid viscosity controllable starting and braking integrated device for a belt conveyor. The liquid viscosity controllable starting and braking integrated device for the belt conveyor comprises a driving device, a driven device, a braking device, an auxiliary device, a lubricant port I, a lubricant port II, a hydraulic oil port I, a hydraulic oil port II, a box body, a ventilating component and a base. The driving device comprises a driving shaft, a driving hub and a driving friction plate group; the driven device comprises a driven shaft, a driven hub, a supporting plate, a driven plate and a driven friction plate group; the braking device comprises a pressing plate, an oil sealing plate, a friction plate group I and a friction plate group II; and the auxiliary device comprises a guide shaft guiding sleeve, a piston I, a spring, a spring fixing plate, a disc and a piston II. The liquid viscosity controllable starting and braking integrated device for the belt conveyor has a reasonable structure, and can replace various soft starting devices, hydraulic and hydrodynamic braking devices and the like, the starting and the braking processes are controllable, the constant twisting moment and heavy duty vehicle starting and parking can be achieved successfully, parking can be performed reliably in case of abrupt current failure, and the liquid viscosity controllable starting and braking integrated device is applicable to various occasions such as coal mines, grounds and the like.
Description
Technical field
The present invention relates to liquid viscosity controllable start braking integrated apparatus for a kind of belt conveyer.
Background technology
At present, the technical measures that belt conveyer controllable start adopts both at home and abroad mainly contain following several:
(1) adopt variable speed fluid coupling, can accomplish to extend cranking time, realize the full load starting performance that empty load of motor starts, improves conveyer.But this system has following weak point: 1. hydraulic coupler is when normal operation, generally there is 3～5% slippage, now there is the loss of 3～5% driving efficiency, and conveying machinery long-term work when mostly long, impeller disk cal val is large, wastes a large amount of energy; 2. cannot to realize transmitting ratio be 1 direct-drive operating condition to variable speed fluid coupling; 3. there is all the time a unsettled transition region in variable speed fluid coupling in starting process, makes starting ability also undesirable; While 4. realizing producing in serial form, between the different hydraulic coupler of power, major part commonality is poor; 5. the volume of hydraulic coupler is larger, and system control performance and control accuracy are poor.
(2) adopt frequency converter, frequency converter has good soft starting characteristic, but also develop at present, can not be applicable to being applied to the explosion-proof frequency converter that mine down-hole is used at home and abroad; For high pressure, large capacity squirrel-cage motor, adopt frequency converter investment greatly in addition, reliability is also poor, and needs to adopt special motor; Frequency converter can produce powerful signal interference simultaneously, affects the normal operation of other electrical control equipment.These have all limited the application of frequency converter in commercial production.
(3) hydro viscous drive.It can improve the transmission serviceability of heavy-duty machinery greatly.But complex manufacturing technology, processing technology is had relatively high expectations, and cost and investment are larger, and maintenance cost is higher.Be not suitable for China's national situation and to the simple technological change of existing heavy duty equipment.From structural arrangement, CST is placed in liquid-viscosity driving device on retarder slow-speed shaft, and structural volume is huger, and the control of temperature rise is easier to.
At present, the technical measures that the controlled braking of belt conveyer both at home and abroad adopts mainly contain following several:
(1) disc brake apparatus.Mainly by mechanical Pan Zha and controlled hydraulic station, formed, its principle of work is by drg, scratch diskette to be applied to friction brake force to produce lock torque, by Hydraulic Station, adjust the size of oil pressure in drg and can adjust positive pressure, thus the size of adjusting brake moment.Hydraulic Station has adopted electro-hydraulic proportional control technology, so the lock torque of brake system can be adjusted automatically according to need of work, realizes good controlled braking.Shortcoming is that brake disc linear velocity can not be too high, otherwise is prone to spark.
(2) hydraulic brake system.By conveyer system, drive Hydraulic Pump also can produce moment, now hydraulic oil pump produces onesize damping moment to conveyer, when damping moment is enough large, will brakes conveyer and realize braking.Hydraulic braking can be divided into two kinds of braking models, and a kind of is pressure regulation braking, and another kind is speed governing braking.Hydraulic brake system, by controlling oil pressure or flow, can be accomplished desirable downward belt conveyor braking deceleration.Due to Hydraulic Pump when long in high-speed operation state, quick abrasion, the life-span is short, in braking procedure, a large amount of braking heat are taken away by hydraulic oil, and through water-filled radiator heat radiation, have increased the system of setting up; When oil temperature is too high, hydraulic package is prone to fault, and fluid, due to cycle operation and the temperature traverse of large flow, is easy to go bad simultaneously, further affects the reliability of hydraulic control system; When conveyer is determined car, due to the leakage of Hydraulic Pump and hydraulic efficiency pressure system, must add specially push rod band-type brake and be determined automobile-used simultaneously; More increased the complexity of system.
(3) hydraulic brake.When the turbine of impeller disk fixedly time, the raw huge resisting moment of high velocity liquid miscarriage that will drive pump impeller, makes its deceleration.This is the principle of work of hydraulic-braking system.Hydraulic-braking system is mainly comprised of the hydraulic brake impeller disk with pump impeller, turbine and hydraulic pressure cooling controller.Can by adjusting filling amount, change the size of lock torque, realize the controlled braking of belt conveyer.Because pump impeller and turbine are not rigid attachment, the life-span of hydraulic brake impeller disk is long.Shortcoming is that hydraulic-braking system can not be braked zero-speed conveyer, and when pump impeller speed must be used mechanical brake braking during lower than 400r/min, its same hydraulic brake system of fluid control cooling system, exists the too high or oily fault that is prone to when poor of oil temperature equally.
(4) viscous braking device.Once had the report to " wet multi-disc brake " both at home and abroad, wet multi-disc brake is multiplex on engineering truck at present, and the research of " wet multi-disc brake " is started to the U.S..Early stage work mainly lays particular emphasis on experimental investigation, studies the frictional behavior of wet multi-disc brake and power-transfer clutch by test results.In recent years, about the research of a series of basic theories aspects such as wet multi-disc brake principle of design, structure optimization and mechanism of fracture is progressively being carried out and constantly perfect.Basic functional principle of the present invention is similar to it, but because the operating characteristic of belt conveyer is different from engineering truck, the design theory of wet multi-disc brake is not exclusively applicable to belt conveyer.Have no the research report to belt conveyer " viscous braking device " abroad.
The present invention is organically combined into one liquid viscosity controllable start technology and controlled braking technology, has realized the first Application on belt conveyer.
Utility model content
The object of this invention is to provide liquid viscosity controllable start braking integrated apparatus for a kind of belt conveyer.
The object of the invention is to be achieved through the following technical solutions:
Liquid viscosity controllable start braking integrated apparatus for belt conveyer of the present invention, comprises main drive, hunting gear, brake equipment, auxiliary device, lubricated hydraulic fluid port I, lubricated hydraulic fluid port II, hydraulic oil port I, hydraulic oil port II, casing, ventilating component and base.Main drive comprises imput shaft, active hub and active friction plate group, hunting gear comprises driven shaft, driven hub, supporting disk, clutch plate and driven friction disk group, brake equipment comprises platen, oil sealing dish, friction lining group I and friction lining group II, and auxiliary device comprises guide shaft guide pin bushing, piston I, spring, spring fixed tray, dish spring and piston I I.Initiatively hub is connected by key with imput shaft, active friction plate group is the external tooth setting-in with active hub by internal tooth, driven friction disk group is by the internal tooth setting-in of external tooth and driven hub, piston I is positioned at from the left side of dynamic friction group, spring one end is located on the bottom surface of piston I inner side, the other end is located in spring fixed tray, spring fixed tray is connected with driven shaft key, supporting disk is positioned at driven friction disk Zu right side, coaxially be socketed with imput shaft, supporting disk and driven hub are bolted, clutch plate and driven hub are bolted, clutch plate is connected with driven shaft key, between clutch plate and piston I, be provided with guide shaft guide pin bushing, friction lining group I is by the external tooth setting-in of internal tooth and platen, friction lining group II is by the internal tooth setting-in of external tooth and driven hub, platen and casing are bolted, oil sealing dish and casing are bolted, between oil sealing dish and piston I I, form oil pocket, piston I I is located at the left side of friction lining group I, dish spring is located in piston I I, base and casing are bolted.
As seen from the above technical solution provided by the invention, liquid viscosity controllable start braking integrated apparatus for belt conveyer of the present invention, rational in infrastructure, can replace various soft starter devices, hydrostatic and hydrodynamic brake equipment etc., starting is controlled with braking procedure, can successfully realize permanent moment of torsion heavy duty and play parking, unexpected power-off stably stop, can be applicable to the multiple occasions such as coal mine Xia, ground.
Accompanying drawing explanation
Fig. 1 is liquid viscosity controllable start braking integrated apparatus structural representation for belt conveyer;
Fig. 2 is the local structure for amplifying schematic diagram in I place.
The specific embodiment
Liquid viscosity controllable start braking integrated apparatus for belt conveyer of the present invention, its preferably the specific embodiment as shown in Figure 1 and Figure 2, belt conveyer comprises main drive, hunting gear, brake equipment, auxiliary device, lubricated hydraulic fluid port I2, lubricated hydraulic fluid port II16, hydraulic oil port I17, hydraulic oil port II15, casing 3, ventilating component 9 and base 24 with liquid viscosity controllable start braking integrated apparatus.
Main drive comprises imput shaft 1, active hub 5 and active friction plate group 6, hunting gear comprises driven shaft 25, driven hub 8, supporting disk 4, clutch plate 12 and driven friction disk group 7, brake equipment comprises platen 18, oil sealing dish 23, friction lining group I19 and friction lining group II20, and auxiliary device comprises guide shaft guide pin bushing 11, piston I 10, spring 13, spring fixed tray 14, dish spring 21 and piston I I22.
Initiatively hub 5 is connected by key with imput shaft 1, active friction plate group 6 is the external tooth setting-in with active hub 5 by internal tooth, driven friction disk group 7 is by the internal tooth setting-in of external tooth and driven hub 8, piston I 10 is positioned at from the left side of dynamic friction group 7, spring 13 one end are located on the bottom surface of piston I 10 inner sides, the other end is located in spring fixed tray 14, spring fixed tray 14 is connected with driven shaft 25 keys, supporting disk 4 is positioned at the right side of driven friction disk group 7, coaxially be socketed with imput shaft 1, supporting disk 4 is bolted with driven hub 8, clutch plate 12 is bolted with driven hub 8, clutch plate 12 is connected with driven shaft 25 keys, between clutch plate 12 and piston I 10, be provided with guide shaft guide pin bushing 11, friction lining group I19 is by the external tooth setting-in of internal tooth and platen 18, friction lining group II20 is by the internal tooth setting-in of external tooth and driven hub 8, platen 18 is bolted with casing 3, oil sealing dish 23 is bolted with casing 3, between oil sealing dish 23 and piston I I22, form oil pocket, piston I I22 is located at the left side of friction lining group I19, dish spring 21 is located in piston I I22, base 24 is bolted with casing 3.
Liquid viscosity controllable start braking integrated apparatus for belt conveyer of the present invention, be mainly used in controllable start and the braking technology field of this logistics load transfer device of belt conveyer, improved the reliability of conveyer, extended the service life of conveyer, it has following inventive point:
Belt conveyer organically combines controllable start and braking technology with liquid viscosity controllable start braking integrated apparatus, has realized the control with braking to conveyer starting, has saved space, has realized the complementation of controlling;
When belt conveyer is realized controllable start with liquid viscosity controllable start braking integrated apparatus, the controlled combination of starting friction sheet, brake portion friction lining actv. is separated, while needing to brake, the controlled combination of brake portion friction lining, actuating section friction lining actv. is separated simultaneously;
Belt conveyer is provided with spring with liquid viscosity controllable start braking integrated apparatus in the bottom surface of piston I inner side, and this spring can utilize its restoring force that friction lining is separated equably in the situation that piston force reduces and even cancels, and has reduced towing torque;
Belt conveyer adopts high molecular abrasion-proof material by liquid viscosity controllable start braking integrated apparatus active friction plate group and driven friction disk group, has guaranteed safety in a braking procedure;
Belt conveyer, with being provided with guide shaft guide pin bushing between the clutch plate of liquid viscosity controllable start braking integrated apparatus and piston I, has guaranteed the safe and reliable sway of piston.
Below in conjunction with accompanying drawing, the structure of utility model and principle of work are further illustrated:
Active friction plate group 6 is combined in proportion by graphite-based friction lining, copper-base friction plate and the paper-base friction wafer of varying number, driven friction disk group 7 consists of steel disc, on active friction plate, have radially and annular oil groove, wherein, the active friction plate using near piston is graphite-based friction lining, the middle active friction plate using is copper-base friction plate, and away from one end of piston, using active friction plate is paper-base friction wafer; Ratio in combination between these three kinds of friction linings is determined by the concrete operating mode of selected belt conveyer.
Belt conveyer is connected with liquid viscosity controllable start braking integrated apparatus imput shaft and belt conveyor ' s pulley or retarder shaft, driven hub and casing maintain static, and under the operating mode of not injecting at hydraulic oil, friction lining group I and friction lining group II combine conveyer is braked under the effect of spring force.
When conveyer starts, hydraulic control system is controlled Hydraulic Station and is injected lubricating oil from lubricated hydraulic fluid port I2 and lubricated hydraulic fluid port II16, under the control of PLC system, by acceleration from rest requirement, from hydraulic oil port I17 and hydraulic oil port II15, inject control oil simultaneously, controlling under the effect of oil pressure, piston slowly moves to right, principal and subordinate's movable friction plate group gap reduces gradually, lock torque increases gradually, friction lining group I and friction lining ZuII gap increase gradually, lock torque reduces gradually, after conveyer starting, stop injecting lubricating oil, now friction lining group II is motionless, friction lining group I is with conveyer normal rotation.
When conveyer need stop or during emergency braking, hydraulic control system is controlled Hydraulic Station and from hydraulic oil port I and hydraulic oil port II, hydraulic oil is discharged, under the control of PLC system, control-oil pressure reduces gradually by braking deceleration requirement simultaneously, piston slowly moves to left, friction lining group I and friction lining ZuII gap reduce gradually until laminating completely, lock torque increases gradually until reach maximum, conveyer is realized slowly and stopped.
The invention has the beneficial effects as follows:
Rational in infrastructure;
Can replace various soft starter devices, hydrostatic and hydrodynamic brake equipment etc.;
Starting is controlled with braking procedure, can successfully realize the heavy duty of permanent moment of torsion rise stop, power-off stably stop suddenly;
Can be applicable to the multiple occasions such as coal mine Xia, ground.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. liquid viscosity controllable start braking integrated apparatus for a belt conveyer, it is characterized in that, described belt conveyer comprises main drive with liquid viscosity controllable start braking integrated apparatus, hunting gear, brake equipment, auxiliary device, lubricated hydraulic fluid port I, lubricated hydraulic fluid port II, hydraulic oil port I, hydraulic oil port II, casing, ventilating component and base, described main drive comprises imput shaft, active hub and active friction plate group, described hunting gear comprises driven shaft, driven hub, supporting disk, clutch plate and driven friction disk group, described brake equipment comprises platen, oil sealing dish, friction lining group I and friction lining group II, described auxiliary device comprises guide shaft guide pin bushing, piston I, spring, spring fixed tray, dish spring and piston I I,
Described active hub is connected by key with described imput shaft, described active friction plate group is by the external tooth setting-in of internal tooth and described active hub, described driven friction disk group is by the internal tooth setting-in of external tooth and described driven hub, described piston I is positioned at the described left side from dynamic friction group, described spring one end is located on the bottom surface of described piston I inner side, the other end is located in described spring fixed tray, described spring fixed tray is connected with described driven shaft key, described supporting disk is positioned at described driven friction disk Zu right side, coaxially be socketed with described imput shaft, described supporting disk and described driven hub are bolted, described clutch plate and described driven hub are bolted, described clutch plate is connected with described driven shaft key, described friction lining group I is by the external tooth setting-in of internal tooth and described platen, described friction lining group II is by the internal tooth setting-in of external tooth and described driven hub, described platen and described casing are bolted, described oil sealing dish and described casing are bolted, between described oil sealing dish and described piston I I, form oil pocket, described piston I I is located at the left side of described friction lining group I, described dish spring is located in described piston I I, described base and described casing are bolted.
2. liquid viscosity controllable start braking integrated apparatus for belt conveyer according to claim 1, is characterized in that, described piston I inside bottom surface is provided with spring.
3. liquid viscosity controllable start braking integrated apparatus for belt conveyer according to claim 1, is characterized in that, described active friction plate group and described driven friction disk group adopt high molecular abrasion-proof material to make.
4. liquid viscosity controllable start braking integrated apparatus for belt conveyer according to claim 1, is characterized in that, between described clutch plate and described piston I, is provided with guide shaft guide pin bushing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210000968.5A CN102530488B (en) | 2012-01-05 | 2012-01-05 | Liquid viscosity controllable starting and braking integrated device for belt conveyor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210000968.5A CN102530488B (en) | 2012-01-05 | 2012-01-05 | Liquid viscosity controllable starting and braking integrated device for belt conveyor |
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| CN102530488A CN102530488A (en) | 2012-07-04 |
| CN102530488B true CN102530488B (en) | 2014-01-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107781333B (en) * | 2016-08-30 | 2024-03-19 | 力博重工科技股份有限公司 | Novel high-speed high-power hydraulic viscous clutch and double-brake integrated device |
| CN107781331A (en) * | 2016-08-30 | 2018-03-09 | 力博重工科技股份有限公司 | Intellectualized visual hydro viscous variable speed drive experimental rig |
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|---|---|---|---|---|
| GB1461885A (en) * | 1974-01-10 | 1977-01-19 | Handke K E | Variable speed hydroviscous drive unit with electronic control system |
| US4022298A (en) * | 1976-03-29 | 1977-05-10 | D.A.B. Industries, Inc. | Wet disc brake |
| CN1847685A (en) * | 2005-04-13 | 2006-10-18 | 清华大学 | Controllable gummy liquid brake for belt conveyer |
| CN201246456Y (en) * | 2007-08-17 | 2009-05-27 | 周满山 | Belt conveyor liquid viscosity stepless speed governor |
| CN201651111U (en) * | 2010-02-10 | 2010-11-24 | 山东科技大学 | Liquid viscosity speed regulating device |
| DE102009023128A1 (en) * | 2009-05-20 | 2010-11-25 | Stromag Ag | Hydraulically operated multi-disk brake, has discharge channel radially opened into disk packet relative to brake rotational axis and radially arranged outside disk packet in sections, where disk packet comprises outer and inner disks |
| CN202481689U (en) * | 2012-01-05 | 2012-10-10 | 力博重工科技股份有限公司 | Hydro-viscous controllable start and brake integrated device for belt conveyor |
-
2012
- 2012-01-05 CN CN201210000968.5A patent/CN102530488B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1461885A (en) * | 1974-01-10 | 1977-01-19 | Handke K E | Variable speed hydroviscous drive unit with electronic control system |
| US4022298A (en) * | 1976-03-29 | 1977-05-10 | D.A.B. Industries, Inc. | Wet disc brake |
| CN1847685A (en) * | 2005-04-13 | 2006-10-18 | 清华大学 | Controllable gummy liquid brake for belt conveyer |
| CN201246456Y (en) * | 2007-08-17 | 2009-05-27 | 周满山 | Belt conveyor liquid viscosity stepless speed governor |
| DE102009023128A1 (en) * | 2009-05-20 | 2010-11-25 | Stromag Ag | Hydraulically operated multi-disk brake, has discharge channel radially opened into disk packet relative to brake rotational axis and radially arranged outside disk packet in sections, where disk packet comprises outer and inner disks |
| CN201651111U (en) * | 2010-02-10 | 2010-11-24 | 山东科技大学 | Liquid viscosity speed regulating device |
| CN202481689U (en) * | 2012-01-05 | 2012-10-10 | 力博重工科技股份有限公司 | Hydro-viscous controllable start and brake integrated device for belt conveyor |
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