CN1070272C - Driving gear for use in coal planer or working face transport machine - Google Patents
Driving gear for use in coal planer or working face transport machine Download PDFInfo
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- CN1070272C CN1070272C CN94105533A CN94105533A CN1070272C CN 1070272 C CN1070272 C CN 1070272C CN 94105533 A CN94105533 A CN 94105533A CN 94105533 A CN94105533 A CN 94105533A CN 1070272 C CN1070272 C CN 1070272C
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Abstract
The present invention relates to a driving gear for working face conveyors or coal ploughs, which is provided with driving units. Each driving unit is composed of an asynchronous motor, an overload protection driving mechanism and an attached flat plate clutch-shaped overload clutch, wherein the transmission mechanism of each driving unit can also be used as a load balance driving gear. According to the present invention, the zero load starting of the asynchronous motor is realized by means of an electronic control device when the flat plate clutch-shaped overload clutch is opened. Moreover, through the switching operation of the control or the regulation of an electromagnetic valve which is attached to the flat plate clutch-shaped overload clutch, the gradual starting of a working face conveyor or a coal plough is realized.
Description
The present invention relates to be used for a kind of transmission device and the control gear of transmission device is carried out method of operating.This transmission device is used for chain belt and/or the scraper chain on the transmission mining machinery, has an asynchronous motor that has that is used for drive sprocket, a driving mechanism and a gear unit that is configured as plate clutch, and have one and by solenoid valve plate clutch is carried out the electric control device of switch and the measured value transmitter of the measurement gear unit operational data of setting up.
Make the face conveyor of drag chain conveyer and the severe duty drive of the shearing device with chain haulage coal plough of being used to mine need adopt the driving mechanism of overload protection for structure; it is to use overload clutch, and normally the hydraulically operated plate clutch constitutes.Known and in mine operation, be proved effective overload protection driving mechanism and have the dull and stereotyped sliding clutch of integrated type; it is opened with pressure by the quick operating valve of electric hydaulic; do overload identification with the measured value transmitter; it or the torque of measuring the driving mechanism output shaft; or measure the rotating speed deviation of motor or driving mechanism by the proximity switch; so that measure the true chain belt power in the work continuously, and be used to overload protection on the electric control device under being sent to.
Known overload protection driving mechanism or form by two-stage spur gear transmission mechanism, or by the two-stage epicyclic transmission mechanism or form by the driving mechanism with a planetary stage and a spur gear transmission level.Be provided with overload clutch making on the driving mechanism of planetary stage, to Gear Planet Transmission parts static in routine work, promptly be generally hollow wheel gear, its support moment is moved (DE-OS3248084 on the shell that is discharged to driving mechanism by clutch, DE-OS3323251, DE-OS3425638, DE-PS3722612).
Also known with the overload protection driving mechanism also as the load balance driving mechanism; so that in face conveyor and shearing machinery, utilize main-or auxilliary transmission device in gear unit reach the balance of motor speed and make motor power (output) balance (DE-OS3733336 thus; DE-OS37140762; DE-OS3804168, DE-OS4002303).Known load balance driving mechanism is provided with the supporting motor that uses with differential transmitting linkage, and these motor are that the hollow wheel gear of planetary stage or planet bearing are provided with.Also known for the load balance driving mechanism: for the control setting of overload clutch a slip monitoring device and a rotation speed monitor, their measured value is used for opening overload clutch by control gear when chain belt stops up.
At the known transmission device that is used for powerful shearing machinery or face conveyor, when bringing onto load starts because sizable induction-motor load and network load can produce very big load peak.In order to make face conveyor and coal plough reach mild starting, used as the auxiliary fluid clutch of starting.On differential transmission mechanism, use fluid clutch to mean the settling mode that is not practical naturally.
Task of the present invention is: a kind of transmission device is provided, is used for chain belt and/or scraper chain on the transmission mining machinery.The transmission device that makes the described type of Introductory part that is provided with the overload protection driving mechanism is configuration in this wise, so that can reach the no-load starting of motor and the mild starting of face conveyor (drag chain conveyer) or shearing device reliably.
Another task of the present invention is: provide a kind of control gear to transmission device to carry out method of operating, make the starting of working surface conveyor or coal plough mild, the load peak when having avoided starting under load.
This task will solve in this wise according to the present invention: a kind of transmission device of the present invention, and it is used for chain belt and/or scraper chain on the transmission mining machinery, and said transmission device comprises:
-one sprocket wheel, but the chain transmission install around on this sprocket wheel;
-at least one asynchronous motor;
-one driving mechanism, but transmission place between motor and the joiner;
-one plate clutch operationally links to each other with driving mechanism, is used to change the support moment on the parts that act on driving mechanism, with the driving torque of control by the driving mechanism transmission;
-one solenoid valve operationally links to each other with plate clutch, and being used for provides a variable on-load pressure to these dishes, so that control slides, and is convenient to support moment and changes;
-one electric control device is used for providing electronic control signal to solenoid valve;
-sensor device, be used for the operating parameters of transmission device is monitored, and provide survey data to the equipment of control gear and electric control device inside, so that during start-up in gear, the electronic control signal of order is provided to solenoid valve, make when valve begins with regard to operated clutch, and transmission is thrown off by driving mechanism, to allow motor under no-load condition, to quicken, thereby at starting period, solenoid valve is operated clutch,, and increased the driving torque that transmits by driving mechanism at leisure gradually with the slip of change dish gradually.
A kind of control gear to transmission device of the present invention carries out method of operating, and transmission device wherein is to be used for chain belt on the transmission mining machines or the scraper chain device on the transport airplane, and said transmission device comprises:
-a pair of isolated gear unit I, II, each gear unit comprises a sprocket wheel, but chain belt or the transmission of scraper chain device install around on this joiner;
-at least one asynchronous motor;
-one driving mechanism, but transmission place between motor and the sprocket wheel;
-one multiple-disk clutch operationally links to each other with driving mechanism, is used to change the support moment on the parts that act on driving mechanism, to control the driving torque by driving mechanism was transmitted;
-one solenoid valve operationally links to each other with clutch, and being used for provides a variable on-load pressure to these dishes, so that the control slip, and support moment is changed;
This transmission device comprises that also at least one is used for the sensor device that the electric control device of electronic control signal is provided and is used to monitor the operating parameters that comprises overload pressure of transmission device and survey data is provided to control gear to solenoid valve; The control gear operating method is improved, it adopts these clutches and solenoid valve to control driving torque, to guarantee that starting steadily, and balance gear unit I, dynamic load between the II, and monitoring under the situation that overload takes place, can transmission be thrown off by driving mechanism, wherein said method comprises:
At starting period, provide number control signal to this solenoid valve;
Originally just operate these clutches, transmission is thrown off by the driving mechanism that is connected;
Allow motor under no loaded state, to quicken;
After this, increase the driving torque that transmits by driving mechanism gradually.
For the starting period of motor and the starting period of chain belt driver, control gear is provided with the clossing pressure regulator of the plate clutch of an electricity adjusting or control, wherein this regulator by solenoid valve with the pressure-loaded of its hydraulic pressure operate tablet clutch in this wise, cause the no-load starting that obtains asynchronous motor at the starting period of motor, and make it obtain mild starting in chain-driven unit starting period utilization slip torque.
According to the present invention, to this plate clutch except that its as also having given another function the known function of overload clutch, be the mild starting of the no-load starting of motor and face conveyor or shearing device, wherein second function is to utilize the electronic section of control gear and by automatically being controlled and regulated by the solenoid valve of the plate clutch of control gear control at each motor starting and device starting period.To this, for the mild starting of the no-load starting of asynchronous motor and face conveyor then and shearing device, the slip that employing can be regulated by the pressure-loaded that plate clutch changes.It is achieved in that when motor starting begins according to the present invention, and plate clutch begins do not have pressure that is to say and opens; After the asynchronous motor no-load starting, this plate clutch is regulated the hydraulic medium that utilizes in the closing device by described clossing pressure and is reached enhancing ground loading gradually lentamente.Improve the driving force pass to chain belt thus lentamente, to the last the face conveyor or the mechanical starting process of shearing finish to start till the operating rate.After the mild starting that realizes face conveyor or shearing device, control gear is done in the work of overload protection in common mode.This can, measurement by torque on the transmission shaft or doing the measurement of rotating speed deviation near switch and reach as known in the art with motor or driving mechanism side.
As described, on transmission device according to the present invention, at the device starting period, mild starting is by the hydraulic loaded pressure that promptly improves plate clutch lentamente continuously or improves this on-load pressure in the short time load stage of one-tenth order successively in time and carry out, so that the on-load pressure of plate clutch rises continuously and the slip moment of starting period is risen more or less continuously always, when to the last when starting period finishes, reaching to the required on-load pressure of proper functioning till.When at the pulsed switch of starting period plate clutch by solenoid valve hydraulic loaded pressure or dull and stereotyped contact pressure being improved continuously or step by step to load, just obtained a kind of simple especially structure.Be connected with the hydraulic pressure input in short-term and the pressure in the cylinder of plate clutch improved in the cylinder chamber of each switching process middle plateform clutch of solenoid valve, when to the last reaching working pressure predetermined in electronic section till.Plate clutch is implemented for this purpose in this wise: it is opened with the hydraulic pressure closure and with spring force.Also replacedly utilize spring force closed and use to load it is opened with the reverse hydraulic pressure of spring force.
The starting period of face conveyor or shearing device starts from after the motor no-load starting, and wherein when motor starting, the plate clutch controlled device remains on open mode.Behind motor starting, control gear automatically imports to the starting period of device, and till when automatically its control being proceeded to the end of this starting process, utilize this moment the pressure-loaded of plate clutch to make clutch closing force and corresponding board joint touch improve the corresponding thus slip moment that has improved as the plate clutch of sliding clutch work step by step constantly or with little sequenced level.In order to be directed to the starting period of device, this controller for electric consumption will be connected with the measured value transmitter of the electric current of a measurement asynchronous motor working state such as its rotating speed or absorption, and this transmitter sends signal to electronic control part and is used to be directed to control or the adjusting that clossing pressure is adjusted.
When transmission device according to the present invention is implemented as the load balance driving mechanism simultaneously, can obtain special advantage.Plate clutch has obtained the third function under this situation, i.e. regulatory function of the master and the drive motor on the auxilliary driving mechanism of face conveyor or shearing device being carried out load balance by means of control gear.In a preferred embodiment, therefore in transmission device according to the present invention, driving mechanism structure is simultaneously made the load balance driving mechanism, be used for the load balance on the gear unit of the master of face conveyor or shearing device and auxilliary transmission device, wherein control gear is realized load balance by the slidable adjustment to the set plate clutch of the asynchronous motor that bears higher load, loose socket is attached to the planetary stage side of driving mechanism, and it is delivered to the hollow wheel gear of this planetary stage or the support moment of planet bearing on the casing of driving mechanism when its closed state.Gear unit on main transmission and auxilliary transmission device can make identical each other, this two gear units or be provided with a public control gear or each gear unit is provided with separately electric control device wherein, under one situation of back, two control gear will be connected by a telecommunication lead.Employed driving mechanism can comprise a plurality of planetary stages as known in the art or be made up of a planetary stage and a spur gear transmission level in transmission device according to the present invention.Also can adopt one to have 1: 1 planetary differential driving mechanism of stable state velocity ratio and be connected (DE-OS3804168) just as is known with a spur wheel gearing down for planetary stage.
Electric control device has known function on the one hand, promptly the overload of plate clutch is opened during the peak torque on predetermined maximum chain haulage power or gear train shaft, had the function of the closure adjustment of plate clutch being controlled or regulating on the other hand at the device starting period.It also has above-mentioned overload equilibrium function simultaneously in a preferred embodiment.
In a preferred implementing form of the present invention, electric control device has the electronic computer of the one or more solenoid valves of control, it is handled the survey data (actual value) of sending from the measured value transmitter, the active power that these survey data absorb for each motor, clutch slip value at that time and at that time hydraulic coupling on-load pressure, and the relation by these survey data and conform with the destination and this clutch is regulated by relatively more definite each required hydraulic coupling on-load pressure of setting value and measured value and by the control of plate clutch solenoid valve.The electronic computer of this control gear then calculates constantly required at that time dull and stereotyped contact pressure (the given on-load pressure of plate clutch) according to the accommodometer algorithm of determining in computer program on the basis of these measured values, this pressure passes through the control of plate clutch solenoid valve then by adjusted.
At last, the present invention also can be used for the tension of chain belt by means of plate clutch, as will be described.
Describe the present invention in detail below with reference to the embodiment in the accompanying drawings.Accompanying drawing is:
Fig. 1: the sketch plan of a kind of possibility of transmission device according to the present invention form of implementation;
Fig. 2: applicable a kind of form of implementation on transmission device according to the present invention with driving mechanism of planetary stage and plate clutch.
Fig. 1 represents to have the chain-driven unit of the chain 1 that detours of a closure, this chain is made of its belt for scraper chain under the situation of face conveyor (drag chain conveyer), and the plane chain that is moved along the excavation face by (not shown coal plough) under the situation of shearing device is formed.Label 2 expressions are used for the sprocket wheel that chain 1 turns to and drives, and it is to be made up of chain drum in common mode under the situation of face conveyor.Respectively be provided with the gear unit I and the II of the sprocket wheel 2 that is used for the transmission there at the two ends place of face conveyor or shearing device, wherein the gear unit I constitutes the main drive gear of face conveyor or shearing device and the gear unit II constitutes its auxilliary driving mechanism.
These two gear unit I and II similarly constitute each other.Each is made up of an asynchronous motor 3 in them, and this motor is being adorned this sprocket wheel 2 by the sprocket wheel 2 under a driving mechanism 4 transmissions on the output shaft 5 of driving mechanism 4.Driving mechanism 4 in the describing of Fig. 1 be make have two gear stages 4 ' and 4 " the two-stage type driving mechanism; one of them gear stage 4 " is made of and another gear stage 4 ' also form by a planetary stage or by a spur gear transmission level a planetary stage.
" be provided with a hydraulic type plate clutch 6, the inside of driving mechanism 4 shells under it also can be arranged at each gear unit I and II side planetary stage 4 as overload clutch for driving mechanism 4.The hydraulic loaded of these plate clutch 6 cylinder chamber and off-load are to realize through a solenoid valve 7 separately, this valve is being that known manner desirably constitutes as regeneration valve, and control or switch, and be subjected to the control of an electric control device 9 by a pilot 8.
In Fig. 1, be provided with a total control gear 9 for each gear unit I and II.But also recommend each a gear unit I and an II setting electric control device 9 separately usually, wherein, as is well known, these two control gear 9 are connected by the communication electric lead.
The enforcement pattern of an overload protection driving mechanism 4 of expression on Fig. 2, it uses as the load balance driving mechanism in according to transmission device shown in Figure 1.Asynchronous motor 3 is connected with casing with flange at driving mechanism 4 input sides by a motor socket 10, and wherein its motor reel and driving mechanism input shaft 11 are coupled.This two-stage driving mechanism has the planetary stage 4 as input stage " and as the spur gear transmission level 4 of output stage '.Be provided with the sun gear 13 of planetary stage on the input shaft 11 in being bearing in bearing 12, planetary pinion 14 forms the tooth engagement with sun gear, planetary pinion is supported on the bearing 15 of common row prong seat 16 sides, in the bearing 17 that planet bearing 16 itself then is bearing in the driving mechanism housing.This planetary pinion 14 is meshed with the hollow wheel gear 18 that tooth is established in the inside of planetary stage in addition, and this hollow wheel gear is rotatably supported in the rolling bearing 19 in the driving mechanism housing.
Planet bearing 14 and spur gear transmission level 4 ' axle 20 form the coupling that is rotationally connected.Be provided with a spur wheel 22 on the axle 20 of supporting in bearing 21, it and a bigger spur wheel 23 are coupled, and the latter is seated on the driving mechanism output shaft 5.5 of this output shafts are bearing in the bearing 24 in the driving mechanism housing.When hollow wheel gear 18 was static, the driving torque of motor 3 will be through sun gear 13, and planetary pinion 14 and planet bearing 16 are sent on the axle 20, and was sent on the sprocket wheel 2 by the spur gear transmission level with spur wheel 22 and 23 from this beam warp.
In the housing of driving mechanism 4 or one with additional housing that this driving mechanism housing is connected in be provided with plate clutch 6, its output shaft constitutes a supporting axle 25 or forms the coupling that is rotatably connected with supporting axle, on this, be provided with small gear 27 as the load balance gear, it is meshed with a bigger intermediate gear 28, and this intermediate gear itself is meshed with the outer ring tooth of hollow wheel gear 18.
More than overload protection driving mechanism 4 its basic structures described in conjunction with Figure 2 known by DE-OS4002303 (Fig. 1), it can be used as reference on this degree.Also can replace this overload protection driving mechanism and use another kind of known driving mechanism for this purpose, for example, as at the driving mechanism described in the DE-OS3323251 (Fig. 2).
On transmission device according to the present invention, the driving mechanism 4 of two gear unit I and II constitutes load balance driving mechanism (planetary differential driving mechanism) simultaneously, wherein by means of electric control device 9, the load balance on the asynchronous motor 3 of two gear units is realized by the slidable adjustment to the set plate clutch of higher load asynchronous motor 3 at work.The slidable adjustment of plate clutch 6 is realized through pilot 8 control electromagnetic valve 7 in this wise by control gear 9: the hydraulic loaded pressure of this plate clutch is reduced in the lower slip torque, to cause plate clutch to skid and the motor revolution is descended until reaching load balance.Certain active power that the asynchronous motor 3 of being correlated with can be absorbed is as regulating parameter.The adjusting that realizes load balance at work by control gear 9 is depicted in greater detail in Fig. 1 not, because this is known on principle.
Be used for the load balance driving mechanism; these two the gear unit I that constitute with plate clutch of overload protection driving mechanism and the driving mechanism of II also can advantageously adopt the driving mechanism according to DE-OS3804168, and wherein planetary stage is by 1: 1 planetary differential driving mechanism of its stable state velocity ratio front that form and be arranged on a multistage spur wheel reduction gearing mechanism of routine as prime.Can be hereby expressly incorporated by reference for the disclosed content of the document.
Be for essence of the present invention, aforesaid, mainly be the effect of electric control device 9 and when closing a floodgate with respect to electricity asynchronous motor 3 startings and corresponding to face conveyor or shearing device when also chain-driven unit starts gently as the effect of the plate clutch 6 of sliding clutch formation.This control gear makes electric control or electricity with a plate clutch 6 and regulates the clossing pressure regulator for this purpose, it is such: when the switch of chain-driven unit starting period by electric control and solenoid valve 7, continuously or small step improve hydraulic loaded pressure with cutting down, and therefore the contact pressure plate that improves plate clutch 6 thus also regulates its slip, finish up to starting period, two asynchronous motors are sent to their all driving torques on the sprocket wheel 2.In the moment of motor starting, promptly when asynchronous motor 3 electricity closed a floodgate, these plate clutches 6 began there is not pressure, so asynchronous motor 3 can start the running speed to it non-loadedly.After realizing motor starting, reach lentamente continuously by control gear 9 and by the solenoid valve 7 of its control and plate clutch 6 to be loaded, so that set up continuously and corresponding thus the raising lentamente by sprocket wheel 2 conduction starts for the chain force of chain 1 until chain-driven unit corresponding the reaching lentamente of this pressure of starting period with hydraulic medium.
Above-mentioned process as described, is to be realized by the adjusting of control gear 9 or control, and is as mentioned above to this, also can such control gear 9 all be set to each gear unit I and II.This control gear 9 has an electronic computer by pilot 8 control electromagnetic valve 7.To make asynchronous motor 3 meritorious electric power and active current at that time offer control gear 9 by the electrical signal lead shown in Fig. 1 27 to this as measured value.Simultaneously, this control gear 9 is connected on the plate clutch 6 by electrical signal lead 28.It makes the measured value transmitter that plate clutch 6 is provided with send such measured value to control gear 9: these measured values are equivalent to plate clutch hydraulic loaded pressure and this clutch dull and stereotyped contact pressure at that time at that time.In addition, this control gear 9 also is connected with electrical signal lead 29, carries measured value by the measured value transmitter, these transmitters to measure the slip of driving mechanism at that time or clutch by their.This measured value transmitter of monitoring that is used to slide is known equally.The electronic computer of control gear 9 is handled these and is passed through signal conductor 27 as measured value, 28,29 survey data that transmit, the relation of this computer by these survey data calculated the required hydraulic loaded pressure of per moment and the dull and stereotyped contact pressure of plate clutch 6 according to the accommodometer algorithm in the computer program that its is provided with, the dull and stereotyped contact pressure of utilizing the mode of measured value and setting value comparison to regulate corresponding hydraulic loaded pressure and plate clutch 6 by solenoid valve 7 then.This adjustment process is as stating, the endurance that is achieved in that the starting period by chain-driven unit improves the hydraulic loaded pressure of plate clutch 6 lentamente and improves closing force and slip torque thus, asynchronous motor 3 torque that it is all to the last is delivered on the sprocket wheel via driving mechanism 4, and has realized the mild starting of chain-driven unit.
Aforesaid, the pressure of plate clutch 6 hydraulic pressure unloads when motor starting, also is clutch separation, so that asynchronous motor 3 starts the working speed to it non-loadedly behind combined floodgate.When motor starting finishes, begun described starting period with the control of the hydraulic pressure clossing pressure of the described plate clutch 6 that works of mild starting to face conveyor or shearing device.Motor starting finishes and can send control gear to as signal by another electrical signal lead 30, is used to guide starting period.The clossing pressure of starting period plate clutch 6 regulate aspect control gear 9 to solenoid valve 7 continuously or pulsed regulate and realize, just through pilot 8 repeatedly control electromagnetic valve 7 switch and realize by the pressure that continuously corresponding or small step improve plate clutch 6 cylinder chamber corresponding to face conveyor or the required mild start request of shearing device with cutting down.
In Fig. 1, do not express the electrical signal lead that is used to transmit overload identification measured value that is connected with control gear 9, this measured value for example is the measured value to the torque sensor of gear unit setting, so that under overload situations, for example under the situation that chain-driven unit stops up, control gear 9 is by the pilot 8 control plate clutches of solenoid valve 7, transmission between asynchronous motor 3 and the sprocket wheel 2 linked open.Asynchronous motor 3 is turn-offed.
On described transmission device, electric control device 9 control plate clutches 6, make it play effect on the one hand as overload clutch, play the effect that is used for each alien frequencies motor load balance on the other hand, play the effect that is used for motor starting and face conveyor or the mild starting of shearing machinery when devoting oneself to work at last.This not only is suitable for and ought the situation of a common control gear 9 be set to two gear unit I and II, and is suitable for being provided with for each gear unit the situation of a control gear 9 separately.
According to the present invention, described transmission device is by means of the tension of the carrier bar of tension that also can be used for controlling plane chain by pressure controlled plate clutch or face conveyor.For the work of improving of face conveyor and shearing device, well-known, the chain belt pretension power that need accurately adjust for the driving torque of transmission device.The pretension power of chain belt is normally utilized the do calibration of modification chain belt in the place to use of face conveyor or shearing machinery or is adjusted.Known to this is to make the chain belt tension on main or auxilliary transmission device by drive motor.For this purpose, this chain belt at first must be lived by locking by means of a chain belt fixed equipment near this transmission device, the sprocket wheel 2 that is driven by the asynchronous motor 3 that uses as the tension motor will be by this motoring then, and is can be free-moving at the sprocket wheel 2 at another gear unit place for detouring of chain belt.The chain belt that suspends can be got rid of from the chain belt path of closure and this chain belt is strained by means of this asynchronous motor that uses as the tension motor, then the chain belt in the chain belt fixed equipment zone is opened, chain belt is shortened and closed again at last chain belt, so that fixedly just obtained desirable chain belt pretension power behind the locking engagement removing chain belt.Such chain belt tension is generally known in mining is used.According to the present invention, the method for this adjusting chain belt pretension power will realize by means of one or two control gear 9 and plate clutch 6.If the motor 3 in the gear unit I of main transmission is used for the chain belt tension, then after the chain belt in the main transmission zone 1 is fixed, utilize the switching manipulation at control gear 9 places that the asynchronous motor 3 of gear unit I is closed a floodgate, and the plate clutch 6 on the gear unit II of assisting transmission device is opened.After the no-load starting of the motor 3 of gear unit I, its plate clutch 6 by control gear 9 to the control of its solenoid valve 7 lentamente (constantly or be classified to) make hydraulic loaded so that the contact pressure of the hydraulic flat of this plate clutch improves lentamente.The driven transmission torque of the sprocket wheel 2 of gear unit I and the dull and stereotyped contact pressure of rising are just becoming the raising of ratio, and the also corresponding raising of the tightening force in the chain belt 1.If when having reached the numerical value of required chain belt tightening force predetermined in computer program, then can with conventional method chain belt be shortened in locking sprocket wheel 2 backs mechanically.As described, the chain belt tightening force is proportional to the motor active power of the asynchronous motor 3 that uses as the tension motor.During the tension process, the active power of this motor 3 is handled constantly by the electronic computer of control gear 9.By regulating solenoid valve 7 the hydraulic flat contact pressure of the plate clutch 6 of gear unit I is improved according to accommodometer algorithm predetermined in computer right, till reaching the preliminary election chain belt pretension power that adapts with motor active power by computer-controlled pressure.Whole tension process therefore be by control gear 9 by means of this control gear to utilize the releasable regulating loop of switching manipulation to regulate solenoid valve by the pressure of plate clutch automatically computer-controlled.
Claims (19)
1. transmission device, it is used for chain belt (1) and/or scraper chain on the transmission mining machinery, and said transmission device comprises:
-one sprocket wheel (2), but the chain transmission install around on this sprocket wheel;
-at least one asynchronous motor (3);
-one driving mechanism (4), but transmission place between motor (3) and the sprocket wheel (2);
-one plate clutch (6) operationally links to each other with driving mechanism (4), is used for changing the support moment on the parts that act on driving mechanism (4), with the driving torque of control by driving mechanism (4) transmission;
-one solenoid valve (7) operationally links to each other with plate clutch (6), is used for providing a variable on-load pressure to these dishes, so that control slides, and is convenient to support moment and changes;
-one electric control device (9) is used for providing electronic control signal to solenoid valve (7);
-sensor device, be used for the operating parameters of transmission device is monitored, and provide survey data to the equipment of control gear and electric control device inside, so that during start-up in gear, the electronic control signal of order is provided to solenoid valve, make when valve begins with regard to operated clutch, and transmission is thrown off by driving mechanism, to allow motor under no-load condition, to quicken, thereby at starting period, solenoid valve is operated clutch,, and increased the driving torque that transmits by driving mechanism at leisure gradually with the slip of change dish gradually.
2. transmission device according to claim 1 is characterized in that the device that is used to provide electronic control signal in proper order provides some signals like this, and promptly these signals are used for solenoid valve is operated, thereby little by little, and change slip in a continuous manner.
3. transmission device according to claim 1, the device that it is characterized in that being used to provide the electronic control signal of order provides some signals like this, and promptly these signals are used for solenoid valve is operated, thereby little by little, and change slip in the mode that increases progressively.
4. transmission device according to claim 1 is characterized in that clutch has disposed spring assembly, and spring assembly acts on the dish, and action direction is opposite with the direction of on-load pressure, and on-load pressure is by hydraulic pressure installation or Pneumatic actuator and produce.
5. transmission device according to claim 1 is characterized in that said sensor device comprises and is used for providing the expression motor signal that begins to switch on and the signal of end of boost to control gear; With the electronic control signal that is used for providing order according to said sensor device signal, and produce first signal, this first signal is closed valve, open to allow clutch disk, and when quickening, motor do not have support moment to act on the parts, produce the another one signal or other a plurality of signal excites solenoid valve, cooperate gradually with the dish that allows clutch, thereby the support moment that acts on the parts is increased gradually thereafter.
6. transmission device according to claim 1 is characterized in that transmission device comprises that at least one has the Gear Planet Transmission level of ring gear, and ring gear is as said parts, and support moment just acts on these said parts.
7. transmission device according to claim 1 is characterized in that at least one has the Gear Planet Transmission level of a planet wheel carrier, and the planet wheel carrier is as said parts, and support moment just acts on these said parts.
8. transmission device according to claim 1, it is characterized in that transmission device comprises a planet input stage and a transmission output stage, said Gear Planet Transmission input stage links to each other with motor, and have said parts, support moment just acts on these said parts, and said transmission output stage links to each other with input stage and sprocket wheel.
9. transmission device according to claim 8 is characterized in that the transmission output stage is an another one Gear Planet Transmission level.
10. transmission device according to claim 8 is characterized in that the transmission output stage is a spur wheel level.
11. transmission device according to claim 8 is characterized in that the velocity ratio of Gear Planet Transmission input stage is 1: 1 when the operation to clutch allows to transmit whole driving torque.
12. transmission device according to claim 1, it is characterized in that electric control device has adopted a computer, this computer compares by the setting value to measured value and storage and handles these survey data, estimates required on-load pressure, and produces desired control signal.
13. transmission device according to claim 1 is characterized in that sensor device provides survey data, these survey data comprise those expression useful horsepower or the power consumption of motor and data of on-load pressure.
14. transmission device according to claim 1, it is characterized in that transmission device is made up of two gear units, these two gear units are spaced apart separately along elongated element, each gear unit comprises sprocket wheel, motor, driving mechanism, clutch and solenoid valve, and the driving mechanism of these two gear units is controlled by control gear, so that regulate the on-load pressure on clutch and two gear units of balance.
15. transmission device according to claim 14 is characterized in that the unit controlled by a general control device.
16. transmission device according to claim 14 is characterized in that each gear unit all has electric control device separately.
17. transmission device according to claim 14, it is characterized in that elongated element be one on the mining machinery Conveying chains or a scraper chain on the chain scraper conveyor, sensor device provides a signal, this signal is the power that motor consumed of a gear unit under the expression tension, electric control device comprises such device, be that this device is used for providing electronic control signal to the valve of the clutch of a said gear unit, with the control driving torque, thereby make pulling force on the Conveying chains or the pulling force on the scraper chain device reach the value that will reach.
18. transmission device according to claim 1, it is characterized in that sensor comprises the device that is used to monitor overload, control gear comprises such device, in a single day promptly monitor and transship, this device just provides a control signal to solenoid valve, so that clutch is operated, and transmission is thrown off by driving mechanism.
19. the control gear to transmission device carries out method of operating, transmission device wherein is to be used for chain belt (1) on the transmission mining machines or the scraper chain device on the transport airplane, and said transmission device comprises:
A pair of isolated gear unit (I, II), each gear unit comprises a sprocket wheel (2), chain belt (1) but or the transmission of scraper chain device install around on this sprocket wheel;
At least one asynchronous motor (3);
A driving mechanism (4), but transmission place between motor (3) and the sprocket wheel (2);
A multiple-disk clutch operationally links to each other with driving mechanism (4), is used for changing the support moment on the parts that act on driving mechanism (4), to control the driving torque that is transmitted by driving mechanism (4);
A solenoid valve (7) operationally links to each other with clutch (6), is used for providing a variable on-load pressure to these dishes, so that the control slip, and support moment is changed;
This transmission device comprises that also at least one is used for the sensor device that the electric control device (9) of electronic control signal is provided and is used to monitor the operating parameters that comprises overload pressure of transmission device and survey data is provided to control gear to solenoid valve; The control gear operating method is improved, it adopts these clutches and solenoid valve to control driving torque, to guarantee that starting steadily, and balance gear unit (I, II) dynamic load between, and monitoring under the situation that overload takes place, can transmission be thrown off by driving mechanism, wherein said method comprises:
At starting period, provide number control signal to this solenoid valve;
Originally just operate these clutches, transmission is thrown off by the driving mechanism that is connected;
Allow motor under no loaded state, to quicken;
After this, increase the driving torque that transmits by driving mechanism gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94105533A CN1070272C (en) | 1994-05-18 | 1994-05-18 | Driving gear for use in coal planer or working face transport machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94105533A CN1070272C (en) | 1994-05-18 | 1994-05-18 | Driving gear for use in coal planer or working face transport machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1132325A CN1132325A (en) | 1996-10-02 |
| CN1070272C true CN1070272C (en) | 2001-08-29 |
Family
ID=5032100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94105533A Expired - Lifetime CN1070272C (en) | 1994-05-18 | 1994-05-18 | Driving gear for use in coal planer or working face transport machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070272C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854461B (en) * | 2005-04-28 | 2011-12-21 | Dbt有限公司 | Coal planer and method for controlling same |
| CN110817343A (en) * | 2019-11-26 | 2020-02-21 | 中国矿业大学 | Driving system and control method of scraper conveyor |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10340593B4 (en) * | 2003-09-01 | 2016-01-21 | Caterpillar Global Mining Europe Gmbh | Drive device for chain stars of chain drives |
| CN100516600C (en) * | 2007-10-31 | 2009-07-22 | 长沙航空工业中南传动机械厂 | Solenoid valve controlled pneumatic gear shifting device |
| CN101435503B (en) * | 2008-12-19 | 2013-02-27 | 长沙航空工业中南传动机械厂 | Electromagnetic valve controlled pneumatic shift automatic speed variator |
| CN101787886A (en) * | 2010-02-20 | 2010-07-28 | 三一重型装备有限公司 | Coal mine machinery and transmission system thereof |
| CN102485616B (en) * | 2010-12-31 | 2014-12-10 | 上汽通用五菱汽车股份有限公司 | Conveying system |
| CN102206998A (en) * | 2011-04-21 | 2011-10-05 | 三一重型装备有限公司 | Control system for coal planer |
| DE202012101546U1 (en) * | 2012-04-25 | 2013-07-26 | Caterpillar Global Mining Europe Gmbh | Transmission in particular for drive systems of construction equipment and mining machines |
| DE102012216673B4 (en) * | 2012-09-18 | 2016-05-19 | Marco Systemanalyse Und Entwicklung Gmbh | chain clutch |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3733336A1 (en) * | 1987-10-02 | 1989-04-13 | Gewerk Eisenhuette Westfalia | Drive arrangement, provided with overload protection and load compensation system, for chain drives, in particular chain conveyors and chain-hauled winning machines |
| DE4002303A1 (en) * | 1990-01-26 | 1991-08-01 | Gewerk Eisenhuette Westfalia | Electric motor and associated gears |
-
1994
- 1994-05-18 CN CN94105533A patent/CN1070272C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3733336A1 (en) * | 1987-10-02 | 1989-04-13 | Gewerk Eisenhuette Westfalia | Drive arrangement, provided with overload protection and load compensation system, for chain drives, in particular chain conveyors and chain-hauled winning machines |
| DE4002303A1 (en) * | 1990-01-26 | 1991-08-01 | Gewerk Eisenhuette Westfalia | Electric motor and associated gears |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854461B (en) * | 2005-04-28 | 2011-12-21 | Dbt有限公司 | Coal planer and method for controlling same |
| CN110817343A (en) * | 2019-11-26 | 2020-02-21 | 中国矿业大学 | Driving system and control method of scraper conveyor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1132325A (en) | 1996-10-02 |
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