CN100470079C - Controllable gummy liquid brake for belt conveyer - Google Patents
Controllable gummy liquid brake for belt conveyer Download PDFInfo
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- CN100470079C CN100470079C CNB2005100645233A CN200510064523A CN100470079C CN 100470079 C CN100470079 C CN 100470079C CN B2005100645233 A CNB2005100645233 A CN B2005100645233A CN 200510064523 A CN200510064523 A CN 200510064523A CN 100470079 C CN100470079 C CN 100470079C
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- friction plate
- driving
- piston
- oil
- driving shaft
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- 239000007788 liquid Substances 0.000 title claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010439 graphite Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 7
- 239000000314 lubricant Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 26
- 238000013461 design Methods 0.000 description 11
- 238000011160 research Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention belongs to the field of logistic conveyer and its control technology, and is especially one controllable gummy liquid brake for belt conveyer. The controllable gummy liquid brake for belt conveyer includes driving drum and driven drum installed along the axis of the driving shaft, alternately arranged driving friction plate sets with driving friction plates and driven friction plate sets with driven friction plates, with the friction plate being graphite based, copper based or paper based. The oil film between driving friction plates can ensure stable operation of the conveyer while ensuring dispersion of friction heat produced in most difficult braking state of the conveyer. The present invention has the advantages of less heat production, compact and simple structure, and good interchangeability, and is suitable for use in coal mine, ground and other fields.
Description
Technical field
The present invention relates to be applied to the controllable brake technical field of this logistics conveying equipment of Belt Conveyors, especially a kind of controllable brake device that places the dependence liquid viscosity shearing force generation braking moment of retarder high speed shaft.
Background technique
At present, the technical measures of Belt Conveyors controllable brake employing both at home and abroad mainly contain following two kinds:
(1) Disk brake apparatus.Mainly form by mechanical Pan Zha and controlled hydraulic station, its working principle is by break working disk to be applied friction brake force to produce braking moment, adjust the size of oil pressure in the break by hydraulic station and can adjust positive pressure, thereby adjust the size of braking moment.Hydraulic station has adopted electro-hydraulic proportional control technology, so the braking moment of braking system can be adjusted automatically according to need of work, realizes good controllable brake.Shortcoming is that the brake disc linear velocity can not be too high, otherwise is prone to spark.(patent No.: 92211373.4) " self cooling Disk brake apparatus " is in order to make break have good thermal diffusivity to patent [1], guarantee the brake disc temperature, according to the blower fan principle brake disc is made the pressure type of cooling of hollow structure, make that kelvin temperature is no more than 150 ℃ in the braking process.This device brake safe is reliable, but volume is bigger, and cost is higher.
(2) hydraulic braking sytem.Drive oil hydraulic pump by conveyer system and also can produce moment, this moment, hydraulic-pressure pump produced onesize damping torque to conveyor, when damping torque is enough big, will brakes conveyor and realize braking.Hydraulic braking can be divided into two kinds of braking models, and a kind of is the pressure regulation braking, and another kind is the speed governing braking.Hydraulic braking sytem can be accomplished desirable downward belt conveyor braking deceleration by control oil pressure or flow.Because oil hydraulic pump is in the state of running up when long, quick abrasion, the life-span is short, and in braking process, a large amount of braking heat are taken away by hydraulic oil, and through the water-filled radiator heat radiation, have increased the system of setting up; When the oil temperature was too high, hydraulic package was prone to fault, and fluid further influences the reliability of hydraulic control system because the cycle operation and the temperature variation of big flow are easy to go bad simultaneously; Simultaneously when conveyor is decided car, because the leakage of oil hydraulic pump and hydraulic system must add the push rod band-type brake specially and be decided automobile-used; More increased the complexity of system.
(3) hydraulic brake.When fixedly the time, giving birth to huge resisting moment to the turbine of coupler, make its deceleration to the high velocity liquid miscarriage that pump impeller drives.This is the working principle of hydraulic-braking system.Hydraulic-braking system mainly is made up of the hydraulic braking coupler and the hydraulic pressure cooling controller of band pump impeller, turbine.Can realize the controllable brake of Belt Conveyors by adjusting the size that filling amount changes braking moment.Because pump impeller and turbine are not rigid joint, the life-span of hydraulic braking coupler is long.Shortcoming is that hydraulic-braking system can not be braked zero-speed to conveyor, must use mechanical brake braking when pump impeller speed is lower than 400r/min, its same hydraulic braking sytem of hydraulic control cooling system, the same too high or oily fault that is prone to when poor of oil temperature that exists.
(4) liquid viscosity braking device.Report to " wet multi-disc brake " was once arranged both at home and abroad, and at present wet multi-disc brake is used on the engineering vehicle more, and the research of " wet multi-disc brake " is started from the U.S..Early stage work mainly lays particular emphasis on experimental study, studies the frictional behavior of wet multi-disc brake and clutch by test result.In recent years, progressively carrying out about the research of a series of basic theories aspects such as wet multi-disc brake design principle, structure optimization and failure mechanism and constantly perfect.Basic functional principle of the present invention is similar to it, but because the performance characteristic of Belt Conveyors is different with engineering vehicle, the design theory of wet multi-disc brake not exclusively is applicable to Belt Conveyors.Do not see research report abroad to Belt Conveyors " liquid viscosity braking device ".Domestic to the liquid viscosity brake application research on Belt Conveyors be only limited to the part theory analysis ([1] Liu Hua etc. [J] Chinese coal Vol.28 No.22002 (2) is calculated in the engineering design of the sticking break of mining liquid: 49～55; [2] Liu Hua etc. the research Shandong Mineral College journal 1994 (3) of liquid viscosity braking mechanism), the present invention has realized the first Application on Belt Conveyors with hydro viscous drive and the combination of Belt Conveyors controllable brake technology.
Summary of the invention
In order to overcome the deficiency of the various controllable brake devices of existing Belt Conveyors, multiple operating conditions in conjunction with Belt Conveyors, the invention provides a kind of liquid viscosity controllable brake device, this device has successfully solved a permanent moment of torsion heavy duty parking, key technologies such as friction plate, high speed rotating sealing are reliably stopped, burnt to sudden power.Compare the present invention with same device and mainly contain following inventive point:
Inventive point (one) combines the sticking transmission theory of liquid with the performance characteristic of Belt Conveyors, propose new design concept and method
The design theory of liquid viscosity braking device is different from the design theory of the sticking braking device of general engineering machinery liquid, this be since Belt Conveyors when braking, moment of torsion is in maximum value; During braking,, long period of braking must be arranged, make Belt Conveyors reach the purpose of parking, therefore, can produce bigger heat during braking in order to reduce impact load that moderating process causes.Simultaneously, Belt Conveyors has horizontal feed, upward transportation is sent, multiple complex arrangement forms such as slope conveying are sent, become in transportation down, if we adopt identical liquid viscosity brake device structure and control type, the practical effect of then bringing but can be different greatly.The liquid sliminess soft starter device of fortune is applied to upper conveying belt type conveyer if promptly same axis power is used for down, the phenomenon of low load with strong power may occur, causes unnecessary waste; And adopt design to be applied to transport and the liquid viscosity controllable brake device of the Belt Conveyors of level is applied in the downward belt conveyor with power, possibly can't realize the controlled cycling start of Belt Conveyors heavy duty, serious accidents such as sheet, driving may occur burning under the serious situation.So we are when design liquid viscosity controllable brake device, must design according to the actual usage requirement of Belt Conveyors, promptly design by actual maximum braking moment, the starting performance of liquid viscosity controllable brake device could be both guaranteed, and reliable, long-term, the safe operation of this device can be guaranteed again.
Inventive point (two) has proposed liquid viscosity braking system flow of lubricant method for determination of amount
The lubrication system that is different from wet clutch and other braking device, the present invention develop one the cover lubrication system in flow of lubrication determine the theoretical method system---promptly determine lubricants capacity by maximum sliding wear power, consider the Belt Conveyors actual operating mode, determine the most difficult operating mode and determine the heating value of liquid viscosity braking device with this operating mode, the correct calculation mode of flow is proposed in view of the above, be that flow of lubrication must satisfy and forms when stablizing oil film, must satisfy and can take away the heat that when maximum sliding wear state, produces, overheated to guarantee that this device does not occur, burn situations such as sheet.
Inventive point (three) proposes to adopt the transmission mode of multiple different qualities friction element combination to the core component friction plate
The present invention has proposed to adopt the friction element compound mode of multiple different qualities in same power train to the core component in the basic machine.When designing multi-disc friction clutch generally speaking, all be the friction plate that adopts single variety; Because the Viscous Driving device is made up of many groups of friction plates, owing to exist the impacting force loss, the impacting force that then is subjected near the friction plate of piston is big, friction plate impacting force away from piston is little, if friction plate group number is too many, last friction plate friction torque even very little, this makes that the transmitting torque of friction plate differs greatly from front to back, stressed, heating, the lubricating status of friction plate differ greatly, this nonuniformity, the wearing and tearing of preposition friction plate be may aggravate when serious, even friction plate deflection or scaling loss occurred.The characteristics such as stressed, heat transfer, wearing and tearing that adopt the friction element compound mode of multiple different qualities can make full use of the different materials friction plate are made appropriate combination, improve power transmission, the temperature conductivity of system, and the phenomenon of avoiding burning friction plate effectively increases the service life.
The invention is characterized in that it comprises:
Driving shaft;
Driving drum, it is coaxial with driving shaft, and rotates with driving shaft around the axis of driving shaft;
Driven drum, it is coaxial with driving drum, and is enclosed within outside the driving drum;
The active friction plate group, it can be in axial sliding by relative driving drum under responsive to axial force simultaneously by the external tooth setting-in of internal tooth and driving drum;
From the movable friction plate group, it is by external tooth and driven bulging internal tooth setting-in, axial arranged along driven drum, and each sheet in the middle of its and each friction plate in the active friction plate group are arranged at interval simultaneously;
Piston, it is positioned at from the right side of kinetic friction group;
Spring, it is fixed on the bottom surface of piston inboard, and under the effect of control oil pressure, it applies braking moment by the piston bottom surface to principal and subordinate's movable friction plate group;
First set casing, it is positioned at the left side from movable friction plate, and outermost a slice from movable friction plate group right side is withstood from movable friction plate in its right side, and described end face is fixedlyed connected with driven bulging side simultaneously; Simultaneously, this first bearing, shell and the coaxial socket of driving shaft;
The lubricant oil hand-hole, it is opened on first set casing, following requirement will be satisfied in its aperture: lubricant oil be enough to by, this lubricant oil hand-hole on the controllable gummy liquid brake that described Belt Conveyors is used injects lubricant oil by required flow, thereby between driving and driven friction plate, form the stable oil film of one deck, and this layer oil film can be taken away the heat that produces when maximum sliding wear state when Belt Conveyors is braked under the most difficult operating mode;
Second set casing, it is positioned at the spring fixed tray outside, and with the driving shaft socket, closely be connected with the opposite side of first set casing again simultaneously;
Spring fixed tray, it is fixedlyed connected with second shell simultaneously, and applies precompression to spring.
Control oily hand-hole, it is opened on second set casing, its hole structure satisfies following requirement, be external hydraulic control lubricating system be enough to by this control oily hand-hole respectively according to the process of declutching, proper functioning, normal brake application, stop in emergency and inject control oil by required different control oil flow, so that apply different control moments to the exterior edge face of piston with the sudden power four kinds of situations of stopping;
Above-mentioned active friction plate group is combined in proportion by graphite-based friction plate, copper-base friction plate and the paper-base friction wafer of varying number, constitute by steel disc from movable friction plate, have on the active friction plate radially and annular oil groove, wherein, the active friction plate that uses near piston is the graphite-based friction plate, the middle active friction plate that uses is a copper-base friction plate, and using active friction plate away from an end of piston is paper-base friction wafer; Ratio in combination between these three kinds of friction plates is decided by the concrete operating mode of selected Belt Conveyors.
Beneficial effect
The invention has the beneficial effects as follows that can be placed on high speed shaft and replace pusher brake, hydraulic pressure and hydraulic braking device etc., and braking process is controlled, velocity variations is steady, reduced the oscillating wave influence in the braking process greatly.This device can successfully realize the heavy duty of permanent moment of torsion rise stop, technology such as the reliable parking of sudden power, and solved key technology such as burning friction plate effectively; The braking device heating value that design theory according to the present invention is designed is little, compact structure, simple, and interchangeability is good, can be suitable under the coal mine, multiple occasion such as ground.
Description of drawings:
Fig. 1. the structural representation of controllable gummy liquid brake of the present invention:
1. driving shaft; 2. lubricant oil hand-hole; 3. first set casing; 4. passive drum; 5. active friction plate; 6. from movable friction plate; 7. control oily hand-hole; 8. piston; 9. spring; 10. driving drum; 11. spring fixed tray; 12. second set casing
Fig. 2. impacting force and friction torque curve under the multiple friction pair varying number combination.
Dotted line: copper base+10,4 graphite-based+6 a paper-base friction wafer combination
Solid line: copper base+6,8 graphite-based+6 a paper-base friction wafer combination
Embodiment
See Fig. 1,1. driving shaft; 2. lubricant oil hand-hole; 3. first set casing; 4. passive drum; 5. active friction plate; 6. from movable friction plate; 7. control oily hand-hole; 8. piston; 9. spring; 10. driving drum; 11. spring fixed tray; 12. second set casing; Driving shaft and belt conveyor ' s pulley or retarder shaft link, and passive drum and shell maintain static, and combine under the effect of friction plate at spring force under the operating mode that control oil does not inject the conveyor braking is lived.When conveyor starts, inject lubricant oil, inject control oil by the starting acceleration requirement simultaneously, piston slowly moves to right, and principal and subordinate's movable friction plate gap increases gradually, and braking moment is decreased to zero gradually, after the conveyor starting, stop to inject lubricant oil, this moment is motionless from movable friction plate, and active friction plate rotates with conveyor; When conveyor need stop, inject lubricant oil, control-oil pressure reduces gradually by the braking deceleration requirement, and piston slowly moves to left, and principal and subordinate's movable friction plate gap reduces gradually until complete combination, and it is maximum that braking moment reaches, and conveyor stops.
Claims (1)
1. Belt Conveyors controllable gummy liquid brake is characterized in that it comprises:
Driving shaft;
Driving drum, it is coaxial with driving shaft, and rotates with driving shaft around the axis of driving shaft;
Driven drum, it is coaxial with driving drum, and is enclosed within outside the driving drum;
The active friction plate group, it can be in axial sliding by relative driving drum under responsive to axial force simultaneously by the external tooth setting-in of internal tooth and driving drum;
From the movable friction plate group, it is by external tooth and driven bulging internal tooth setting-in, axial arranged along driven drum, and each sheet in the middle of its and each friction plate in the active friction plate group are arranged at interval simultaneously;
Piston, it is positioned at from the right side of kinetic friction group;
Spring, it is fixed on the bottom surface of piston inboard, and under the effect of control oil pressure, it applies braking moment by the piston bottom surface to principal and subordinate's movable friction plate group;
First set casing, it is positioned at the left side from movable friction plate, and outermost a slice from movable friction plate group left side is withstood from movable friction plate in its right side, and described end face is fixedlyed connected with driven bulging side simultaneously; Simultaneously, first set casing and the coaxial socket of driving shaft;
The lubricant oil hand-hole, it is opened on first set casing, following requirement will be satisfied in its aperture: lubricant oil be enough to by, this lubricant oil hand-hole on the controllable gummy liquid brake that described Belt Conveyors is used injects lubricant oil by required flow, thereby between driving and driven friction plate, form the stable oil film of one deck, and this layer oil film can be taken away the heat that produces when maximum sliding wear state when Belt Conveyors is braked under the most difficult operating mode;
Second set casing, it is positioned at the spring fixed tray outside, and with the driving shaft socket, closely be connected with the right side of first set casing again simultaneously;
Spring fixed tray, it is fixedlyed connected with second shell simultaneously, and applies precompression to spring;
Control oily hand-hole, it is opened on second set casing, its hole structure satisfies following requirement, be external hydraulic control lubricating system be enough to by this control oily hand-hole respectively according to the process of declutching, proper functioning, normal brake application, stop in emergency and inject control oil by required different control oil flow, so that apply different control moments to the exterior edge face of piston with the sudden power four kinds of situations of stopping;
Above-mentioned active friction plate group is combined in proportion by graphite-based friction plate, copper-base friction plate and the paper-base friction wafer of varying number, constitute by steel disc from movable friction plate, have on the active friction plate radially and annular oil groove, wherein, the active friction plate that uses near piston is the graphite-based friction plate, the middle active friction plate that uses is a copper-base friction plate, and using active friction plate away from an end of piston is paper-base friction wafer; Ratio in combination between these three kinds of friction plates is decided by the concrete operating mode of selected Belt Conveyors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100645233A CN100470079C (en) | 2005-04-13 | 2005-04-13 | Controllable gummy liquid brake for belt conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100645233A CN100470079C (en) | 2005-04-13 | 2005-04-13 | Controllable gummy liquid brake for belt conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1847685A CN1847685A (en) | 2006-10-18 |
| CN100470079C true CN100470079C (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100645233A Expired - Fee Related CN100470079C (en) | 2005-04-13 | 2005-04-13 | Controllable gummy liquid brake for belt conveyer |
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| CN (1) | CN100470079C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530488B (en) * | 2012-01-05 | 2014-01-15 | 力博重工科技股份有限公司 | Liquid viscosity controllable starting and braking integrated device for belt conveyor |
| CN102530513B (en) * | 2012-01-05 | 2014-07-30 | 力博重工科技股份有限公司 | Torque-limiting type low-speed brake |
| CN102927164A (en) * | 2012-10-10 | 2013-02-13 | 江苏大学 | Soft brake employing liquid viscosity |
| CN105202078B (en) * | 2015-10-27 | 2018-06-01 | 江苏新日电动车股份有限公司 | A kind of disk type brake |
| CN111255822B (en) * | 2020-01-17 | 2021-06-01 | 盐城工学院 | Piezoelectric driving type liquid viscosity-permanent magnet composite transmission method |
-
2005
- 2005-04-13 CN CNB2005100645233A patent/CN100470079C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 矿用液粘制动器的工程设计计算. 刘桦，王农，范云霄.中国煤炭，第2002/02期. 2002 |
| 矿用液粘制动器的工程设计计算. 刘桦，王农，范云霄.中国煤炭，第2002/02期. 2002 * |
| 粘液技术在煤矿机械中的应用研究. 刘桦，王农.中国煤炭，第2001/06期. 2001 |
| 粘液技术在煤矿机械中的应用研究. 刘桦，王农.中国煤炭，第2001/06期. 2001 * |
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| CN1847685A (en) | 2006-10-18 |
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