CN204150727U - A kind of granular material uniform discharge device - Google Patents
A kind of granular material uniform discharge device Download PDFInfo
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- CN204150727U CN204150727U CN201420492442.8U CN201420492442U CN204150727U CN 204150727 U CN204150727 U CN 204150727U CN 201420492442 U CN201420492442 U CN 201420492442U CN 204150727 U CN204150727 U CN 204150727U
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Abstract
The utility model relates to a kind of granular material uniform discharge device, comprise tank body, this tank body top is provided with stepping motor and reductor, stepping motor is connected with reductor, reductor by transmission of power to transmission shaft, the transmission shaft middle and upper part being positioned at tank body is connected with stirring cutter fixed mount, and this stirring cutter fixed mount is connected with the stirring cutter for stirring material in tank, and the lower end of described transmission shaft is connected with even blanking control assembly.This programme can control the whereabouts precision of granular material more accurately, has high promotional value.
Description
Technical field
The utility model relates to manufacturing line blanking field, is specifically related to a kind of granular material uniform discharge device.
Background technology
The Chinese patent literature of Authorization Notice No. CN 203510477 U is the early production of my company, for the even blanking of granular material.In the program, by the common asynchronous three phase electric machine of transducer drive, motor via reducer drives the running of blanking cutter, completes blanking.
But in the program, there is more deficiency: in (1) program, motor is common asynchronous three phase electric machine, easy stall when there is electric motor starting, the too high waste electric energy of power of motor.(2) common asynchronous three phase electric machine rotating speed is wayward, and during shutdown, inertia is large, and blanking is uneven, and error is larger.(3) motor speed is high, and reductor rotating speed is also high, and cal val is large, and work life is short, and maintenance capacity is large.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of granular material uniform discharge device.It is high that this device has cutting stock precision, the feature of not easily stall during electric motor starting.
The utility model adopts following technical proposals:
A kind of granular material uniform discharge device, comprise tank body, this tank body top is provided with stepping motor and reductor, stepping motor is connected with reductor, reductor by transmission of power to transmission shaft, the middle and upper part being positioned at the transmission shaft of tank body is connected with stirring cutter fixed mount, and this stirring cutter fixed mount is connected with the stirring cutter for stirring material in tank, and the lower end of described transmission shaft is connected with even blanking control assembly.
Preferably, described tank body top is provided with reductor fixed support, and reductor is fixed on reductor fixed support.
Preferably, described reductor fixed support is connected with planetary reduction gear, and transmission shaft is through the sun wheel of described planetary reduction gear, and the planet wheel spindle of planetary reduction gear is through the housing of planetary reduction gear, and described planet wheel spindle is connected with reductor fixed support; Described stirring cutter fixed mount is connected with the internally toothed annulus of described planetary reduction gear, and internally toothed annulus drives stirring cutter fixed mount to rotate.
Preferably, described even blanking control assembly comprises the blanking cover A be connected with propeller shaft slip, and transmission shaft bottom is fixedly connected with enclosing, described enclosing is provided with at least one inlet point, and enclosing is covered in inside by blanking cover A.
Preferably, described blanking cover A inside is provided with some spring slide bars, is provided with guide bearing chock in enclosing, guide bearing chock is provided with the center bearing pilot bearing matched with described spring slide bar quantity.
Preferably, described transmission shaft is provided with for regulating the setting nut of blanking cover A adjustable height and the jam nut for locking setting nut.
Preferably, described even blanking control assembly comprises the blanking cover B be fixedly connected with transmission shaft, and blanking cover B is provided with at least one inlet point.
The beneficial effects of the utility model are: (1) stepping motor starting torque is high, even if also not easily stall when being placed with a large amount of material in tank body.(2) internally toothed annulus of planetary reduction gear is connected with stirring cutter fixed support, stirring cutter is by the center stirring tank body of granular material, when ensureing that material is few, blanking velocity (3) blanking cover A is matched with enclosing by spring slide bar, by the height size of lift adjustment enclosing upper shed, complete the even feeding of material, improve the homogeneity of blanking.(4) power of stepping motor used is much smaller than original power of motor, significantly saves electric energy.(5) control accuracy of stepping motor is high, passes speed low, is easier to control, and blanking is more even, and error is less.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of embodiment 1 in the utility model;
Fig. 2 is the structural representation of embodiment 2 in the utility model;
Fig. 3 is the structural representation of embodiment 3 in the utility model;
Fig. 4 is the structural representation of embodiment 4 in the utility model;
Fig. 5 is the structural representation of planetary reduction gear in the utility model;
Fig. 6 is the cooperation schematic diagram of even blanking control assembly in embodiment 1 and embodiment 2 in the utility model;
Fig. 7 be in the utility model blanking cover A and enclosing coordinate figure;
Fig. 8 is the birds-eye perspective of Fig. 7;
Fig. 9 is the assembly drowing of governing screw assembly in the utility model;
Figure 10 is the exploded drawings of governing screw assembly in the utility model;
Figure 11 is the structural representation of even blanking control assembly in embodiment 3 and embodiment 4 in the utility model;
Wherein: 1, reductor, 2, planetary reduction gear, 3, reductor fixed support, 4, stirring cutter fixed mount, 5, slide bar, 6, center feed opening, 7, enclosing, 8, blanking cover A, 9, tank body, 10, stepping motor, 11, transmission shaft, 12, satellite gear, 13, sun wheel, 14, internally toothed annulus, 15, guide bearing chock, 16, setting nut, 17, spring, 18, inlet point, 19, positioning thread insert, 20, jam nut, 21, stirring cutter, 22, center bearing pilot bearing, 23, planet wheel spindle, 24, housing, 25, sun wheel centre hole, 26, governing screw assembly, 27, even blanking control assembly A, 28, even blanking control assembly B, 29, blanking cover B.
Detailed description of the invention:
Embodiment 1: a kind of granular material uniform discharge device, its structure is as shown in Fig. 1, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10: comprise tank body 9, this tank body 9 top is provided with stepping motor 10 and reductor 1, stepping motor 10 is connected with reductor 1, reductor 1 by transmission of power to transmission shaft 11, the middle and upper part being positioned at the transmission shaft 11 of tank body 9 is connected with stirring cutter fixed mount 4, this stirring cutter fixed mount 4 is connected with the stirring cutter 21 for stirring material in tank body 9, and the lower end of described transmission shaft 11 is connected with even blanking control assembly A27.
Described tank body 9 top is provided with reductor fixed support 3, and reductor 1 is connected with stepping motor 10 and is fixed on the top of reductor fixed support 3.
Described even blanking control assembly A27 comprises the blanking cover A8 be connected that to slide with transmission shaft 11, transmission shaft 11 bottom is fixedly connected with enclosing 7, described enclosing 7 is provided with at least one inlet point 18, enclosing 7 is covered in inside by blanking cover A8, and the internal diameter of blanking cover A8 is slightly larger than the external diameter of enclosing 7.
Described blanking cover A8 inside is provided with some spring slide bars, is provided with guide bearing chock 15 in enclosing 7, guide bearing chock 15 is provided with the center bearing pilot bearing matched with described spring slide bar quantity.
This spring slide bar is the structure that slide bar 5 and slide bar 5 overcoat have Compress Spring 17.
Blanking cover A8 is arranged on transmission shaft 11 by governing screw assembly 26.The position of governing screw assembly 26 is arranged on the top of even blanking control assembly A27.Governing screw assembly 26 is provided with for regulating the setting nut 16 of blanking cover A8 adjustable height and the jam nut 20 for locking setting nut 16, and jam nut 20, for pinning the position of setting nut 16, prevents its displacement in normal operation.Setting nut 16 is in order to regulate the height of blanking cover A8, and positioning thread insert 19 is fixed on the appropriate location of transmission shaft 11, and blanking cover A8 is enclosed within setting nut 16 bottom, and can freely up and down slide certain distance.
The top of described blanking cover A8 is taper, and bottom is cylindrical.
The bottom of described tank body 9 is taper.
Blanking principle of the present utility model is:
Stepping motor 10 transmission is to reductor 11, and reductor 11 drives transmission shaft 11 to rotate, and transmission shaft 11 drives stirring cutter fixed mount 4 to rotate, and stirring cutter fixed mount 4 is provided with stirring cutter 21, completes the stirring of material.
Stirring cutter 21 and transmission shaft 11 synchronous axial system, for the device mentioned in background technology, improve the homogeneity of blanking, improve the precision of material metering.
Blanking cover A8 is enclosed within the bottom of transmission shaft 11, can freely up and down slide, and by the lifting of setting nut 16, blanking cover A8 can be regulated along transmission shaft 11 direction slidably distance.
Blanking cover A8 inside is provided with spring slide bar, and the center bearing pilot bearing 22 on spring slide bar and guide bearing chock 15 is suitable, and blanking cover A8 is slided up and down in the endoporus motion of center bearing pilot bearing 22 by slide bar 5, realizes the displacement up and down of blanking cover A8.Spring 17 is under the effect of material gravity, and stretch different height, thus regulate the height of blanking cover A8.
Solid accumulation is on blanking cover A8, solid accumulation is many, and the pressure of blanking cover A8 is large, then blanking cover A8 moves down, inlet point 18 is with regard to relative decrease, lacking of solid accumulation, blanking cover A8 pressure is little, then blanking cover A8 moves, inlet point 18 just expands relatively, and enclosing 7 is with transmission shaft 11 synchronous axial system, automatically can adjusts the height of the inlet point 18 of enclosing 7 like this according to the thickness of material, reach the object regulating even blanking.
The scheme that the present embodiment provides, compared to the device mentioned in background technology, during Frequency Converter Control ordinary three-phase synchronous in background technology, characteristic during electric motor starting be torque from 0 to maximum, like this unloading phase meet obstructions will stall.Unloaded normal operation of threephase asynchronous machine is 1-50HZ, if run with load is lower than a certain numerical value, such as 5HZ, threephase asynchronous machine meeting stall, unless improved power of motor.
If when during ordinary three-phase synchronous 50HZ, rotating speed is 1450RPM, the rotating speed of 5HZ is that 145RPM turns.If reduction ratio is 10, exporting is then 14.5RPM, then each second is have the corner of 87 °.And the minimum speed of motor can not lower than this special value.
During shutdown, the inertia torque of threephase asynchronous machine is larger, and when to receive after halt instruction to shutdown, the angle turned over is too large, causes blanking too much, has a strong impact on precision.If adopts the motor of more high-performance motor or employing 8 poles, or more can waste electric energy, and motor price is also higher.
In the device that the present embodiment provides, reductor 1 is driven to rotate by stepping motor 10.Characteristic when stepping motor starts is the minimum value of torque when slowly dropping to maximum power from maxim, so much larger than threephase asynchronous machine when stepper motor torque numerical value starts, and therefore can not stall.
Preferably be chosen as: stepping motor 10 is set as 725RPM, reductor reduction ratio is 50, and exporting is 14.5RPM equally.The advantage of the program be can the rotating speed of stepping motor arrange less, such as 400RPM, 100RPM, even can be set to 1RPM or less, if be 1RPM, the output of reductor 1 is 0.12 ° of angle per second.
Therefore; this device adopts stepping motor to drive reductor running; when stepping motor receives deceleration instruction or halt instruction; the output speed of stepping motor is more prone to control; and output shaft inertia is much smaller than common asynchronous three phase electric machine; the angle that even blanking control assembly turns over is slower less, and weigh for blanking like this, precision is higher.
In the present embodiment, reductor 1 is driven by stepping motor 10, reductor 1 drives transmission shaft 11 to rotate, transmission shaft 11 directly drives stirring cutter 21 to rotate, for the earlier solutions of my company mentioned in background technology, its beneficial effect is that stepping motor 10 moment of torsion of starting to walk is high, after reductor 1 slows down, further increase detent torque, even if also not easily stall when being placed with a large amount of material in tank body 9, and find that the effect horse power of stepping motor 10 used is far smaller than common asynchronous three phase electric machine through experiment test, significantly save electric energy; It is lower that the rotating speed of stepping motor 10 can be arranged, and is more convenient for improving cutting stock precision.
Embodiment 2: a kind of granular material uniform discharge device, its structure is as shown in Fig. 2, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10: comprise tank body 9, this tank body 9 top is provided with stepping motor 10 and reductor 1, stepping motor 10 is connected with reductor 1, reductor 1 by transmission of power to transmission shaft 11, the middle and upper part being positioned at the transmission shaft 11 of tank body 9 is connected with stirring cutter fixed mount 4, this stirring cutter fixed mount 4 is connected with the stirring cutter 21 for stirring material in tank body 9, and the lower end of described transmission shaft 11 is connected with even blanking control assembly A27.
Described tank body 9 top is provided with reductor fixed support 3, and reductor 1 is connected with stepping motor 10 and is fixed on reductor fixed support 3.
Described reductor fixed support 3 is connected with planetary reduction gear 2, transmission shaft 13 is through the sun wheel 13 of described planetary reduction gear 2, the planet wheel spindle 23 of planetary reduction gear 2 through planetary reduction gear 2 housing 24 and be fixedly connected with it, and the upper end of described planet wheel spindle 23 is connected with reductor fixed support 3, on the planet wheel spindle 23 being positioned at planetary reduction gear 2 inside, cover has satellite gear 12, sun wheel 13 is meshed with satellite gear 12, and satellite gear 12 is meshed with internally toothed annulus 14; Described stirring cutter fixed mount 4 is connected with the internally toothed annulus 14 of described planetary reduction gear 2, and internally toothed annulus 14 drives stirring cutter fixed mount 4 to rotate.
Described even blanking control assembly A27 comprises the blanking cover A8 be connected that to slide with transmission shaft 11, transmission shaft 11 bottom is fixedly connected with enclosing 7, described enclosing 7 is provided with at least one inlet point 18, enclosing 7 is covered in inside by blanking cover A8, and the internal diameter of blanking cover A8 is slightly larger than the external diameter of enclosing 7.
Described blanking cover A8 inside is provided with some spring slide bars, is provided with guide bearing chock 15 in enclosing 7, guide bearing chock 15 is provided with the center bearing pilot bearing matched with described spring slide bar quantity.
This spring slide bar is the structure that slide bar 5 and slide bar 5 overcoat have Compress Spring 17.
Blanking cover A8 is arranged on transmission shaft 11 by governing screw assembly 26.The position of governing screw assembly 26 is arranged on the top of even blanking control assembly A27.Governing screw assembly 26 is provided with for regulating the setting nut 16 of blanking cover A8 adjustable height and the jam nut 20 for locking setting nut 16, and jam nut 20, for pinning the position of setting nut 16, prevents its displacement in normal operation.Setting nut 16 is in order to regulate the height of blanking cover A8, and positioning thread insert 19 is fixed on the appropriate location of transmission shaft 11, and blanking cover A8 is enclosed within setting nut 16 bottom, and can freely up and down slide certain distance.
The top of described blanking cover A8 is taper, and bottom is cylindrical.
The bottom of described tank body 9 is taper.
Blanking principle of the present utility model is:
Stepping motor 10 transmission is to reductor 11, reductor 11 drives transmission shaft 11 to rotate, transmission shaft 11 is connected with the sun wheel 13 of planetary reduction gear 2, by sun wheel 13 through satellite gear 12 transmission to internally toothed annulus 14, internally toothed annulus 14 drives stirring cutter fixed mount 4 to rotate, stirring cutter fixed mount 4 is provided with stirring cutter 21, completes the stirring of material.
The rotating speed of the revolution ratio sun wheel 13 of internally toothed annulus 14 is little, then stirring cutter fixed mount 4 moment of torsion after slowing down becomes large.
Blanking cover A8 is enclosed within the bottom of transmission shaft 11, can freely up and down slide, and by the lifting of setting nut 16, blanking cover A8 can be regulated in the liftable distance in transmission shaft 11 direction.
Stirring cutter 21 rotation asynchronous with transmission shaft 11, improves the homogeneity of blanking, improves the precision of material metering.
Blanking cover A8 inside is provided with spring slide bar, and the center bearing pilot bearing 22 on spring slide bar and guide bearing chock 15 is suitable, realizes moving up and down of blanking cover A8.Spring 17 is under the effect of different material gravity, and stretch different height, thus regulate the height of blanking cover A8.Blanking cover A8 is slided up and down in the endoporus motion of center bearing pilot bearing 22 by slide bar 5.
Solid accumulation is on blanking cover A8, solid accumulation is many, and the pressure of blanking cover A8 is large, then blanking cover A8 moves down, inlet point 18 is with regard to relative decrease, lacking of solid accumulation, blanking cover A8 pressure is little, then blanking cover A8 moves, inlet point 18 just expands relatively, and enclosing 7 is with transmission shaft 11 synchronous axial system, automatically can adjusts the height of the inlet point 18 of enclosing 7 like this according to the thickness of material, reach the object regulating even blanking.
The scheme that the present embodiment provides, compared to the device mentioned in background technology, during Frequency Converter Control ordinary three-phase synchronous in background technology, characteristic during electric motor starting be torque from 0 to maximum, like this unloading phase meet obstructions will stall.Unloaded normal operation of threephase asynchronous machine is 1-50HZ, if run with load is lower than a certain numerical value, such as 5HZ, threephase asynchronous machine meeting stall, unless improved power of motor.
If when during ordinary three-phase synchronous 50HZ, rotating speed is 1450RPM, the rotating speed of 5HZ is that 145RPM turns.If reduction ratio is 10, exporting is then 14.5RPM, then each second is have the corner of 87 °.And the minimum speed of motor can not lower than this special value.
During shutdown, the inertia torque of threephase asynchronous machine is larger, and when to receive after halt instruction to shutdown, the angle turned over is too large, causes blanking too much, has a strong impact on precision.If adopt the motor of more high-performance motor or employing 8 poles, electric energy can be wasted, and motor price is also higher.
In the device that the present embodiment provides, reductor 1 is driven to rotate by stepping motor 10.Characteristic when stepping motor starts is the minimum value of torque when slowly dropping to maximum power from maxim, so much larger than threephase asynchronous machine when stepper motor torque numerical value starts, and therefore can not stall.
Preferably be chosen as: stepping motor 10 is set as 725RPM, reductor reduction ratio is 50, and exporting is 14.5RPM equally.The advantage of the program be can the rotating speed of stepping motor arrange less, such as 400RPM, 100RPM, even can be set to 1RPM or less, if be 1RPM, the output of reductor 1 is 0.12 ° of angle per second.
Meanwhile, the reduction ratio of planetary reduction gear 2 be 5 and stepping motor rotating speed is 725RPM time, the rotating speed of planetary reduction gear 2 internally toothed annulus is 2.9RPM, and theoretically, the torque of stirring cutter 21 in turn increases 5 times.More low power stepping motor 10 can be used like this to be used as the propulsion source of this device.
Therefore; this device adopts stepping motor to drive reductor running; when stepping motor receives deceleration instruction or halt instruction; the output speed of stepping motor is more prone to control; and output shaft inertia is much smaller than common asynchronous three phase electric machine; the angle that even blanking control assembly turns over is slower less, and weigh for blanking like this, precision is higher.
In the present embodiment, reductor 1 is driven by stepping motor 10, reductor 1 drives transmission shaft 11 to rotate, transmission shaft 11 drives planetary reduction gear 2 again, for the earlier solutions of my company mentioned in background technology, its beneficial effect is that stepping motor 10 moment of torsion of starting to walk is high, by the deceleration of reductor 1 with planetary reduction gear 2, substantially increase the starting torque of stirring cutter, reduce the horsepower output of motor, even if also not easily stall when being placed with a large amount of material in tank body 9, and find that the effect horse power of stepping motor 10 used is far smaller than ordinary three-phase synchronous power through experiment test, significantly save electric energy, and the rotating speed of stepping motor 10 can arrange lower, be more convenient for improve cutting stock precision.
Embodiment 3: a kind of granular material uniform discharge device, its structure is as in figs. 3 and 11: comprise tank body 9, this tank body 9 top is provided with stepping motor 10 and reductor 1, stepping motor 10 is connected with reductor 1, reductor 1 by transmission of power to transmission shaft 11, the middle and upper part being positioned at the transmission shaft 11 of tank body 9 is connected with stirring cutter fixed mount 4, this stirring cutter fixed mount 4 is connected with the stirring cutter 21 for stirring material in tank body 9, and the lower end of described transmission shaft 11 is connected with even blanking control assembly B28.
Described tank body 9 top is provided with reductor fixed support 3, and reductor 1 is connected with stepping motor 10 and is fixed on the top of reductor fixed support 3.
Described even blanking control assembly B28 comprises the blanking cover B29 be fixedly connected with transmission shaft 11, and blanking cover B29 is provided with at least one inlet point 18, and blanking cover B29 top is taper, bottom is cylindrical.
Blanking principle of the present utility model is:
Stepping motor 10 transmission is to reductor 11, and reductor 11 drives transmission shaft 11 to rotate, and transmission shaft 11 drives stirring cutter fixed mount 4 to rotate, and stirring cutter fixed mount 4 is provided with stirring cutter 21, completes the stirring of material.
Stirring cutter 21 and transmission shaft 11 synchronous axial system, for the device mentioned in background technology, improve the homogeneity of blanking, improve the precision of material metering.
Blanking cover B29 rotates with different speed, and material will enter from inlet point 18 with different amounts, regulates the speed of stepping motor 10, just can regulate the feed rate of blanking cover B29 inlet point 18, reach the object of even blanking.
The scheme that the present embodiment provides, compared to the device mentioned in background technology, during Frequency Converter Control ordinary three-phase synchronous in background technology, characteristic during electric motor starting be torque from 0 to maximum, like this unloading phase meet obstructions will stall.Unloaded normal operation of threephase asynchronous machine is 1-50HZ, if run with load is lower than a certain numerical value, such as 5HZ, threephase asynchronous machine meeting stall, unless improved power of motor.
If when during ordinary three-phase synchronous 50HZ, rotating speed is 1450RPM, the rotating speed of 5HZ is that 145RPM turns.If reduction ratio is 10, exporting is then 14.5RPM, then each second is have the corner of 87 °.And the minimum speed of motor can not lower than this special value.
During shutdown, the inertia torque of threephase asynchronous machine is larger, and when to receive after halt instruction to shutdown, the angle turned over is too large, causes blanking too much, has a strong impact on precision.If adopts the motor of more high-performance motor or employing 8 poles, or more can waste electric energy, and motor price is also higher.
In the device that the present embodiment provides, reductor 1 is driven to rotate by stepping motor 10.Characteristic when stepping motor starts is the minimum value of torque when slowly dropping to maximum power from maxim, so much larger than threephase asynchronous machine when stepper motor torque numerical value starts, and therefore can not stall.
Preferably be chosen as: stepping motor 10 is set as 725RPM, reductor reduction ratio is 50, and exporting is 14.5RPM equally.The advantage of the program be can the rotating speed of stepping motor arrange less, such as 400RPM, 100RPM, even can be set to 1RPM or less, if be 1RPM, the output of reductor 1 is 0.12 ° of angle per second.
Therefore; this device adopts stepping motor to drive reductor running; when stepping motor receives deceleration instruction or halt instruction; the output speed of stepping motor is more prone to control; and output shaft inertia is much smaller than common asynchronous three phase electric machine; the angle that even blanking control assembly turns over is slower less, and weigh for blanking like this, precision is higher.
In the present embodiment, reductor 1 is driven by stepping motor 10, reductor 1 drives transmission shaft 11 to rotate, transmission shaft 11 directly drives stirring cutter 21 to rotate, for the earlier solutions of my company mentioned in background technology, its beneficial effect is that stepping motor 10 moment of torsion of starting to walk is high, after reductor 1 slows down, further increase detent torque, even if also not easily stall when being placed with a large amount of material in tank body 9, and find that the effect horse power of stepping motor 10 used is far smaller than common asynchronous three phase electric machine through experiment test, significantly save electric energy; It is lower that the rotating speed of stepping motor 10 can be arranged, and is more convenient for improving cutting stock precision.
Embodiment 4: a kind of granular material uniform discharge device, its structure is as shown in Fig. 4, Fig. 5 and Figure 11: comprise tank body 9, this tank body 9 top is provided with stepping motor 10 and reductor 1, stepping motor 10 is connected with reductor 1, reductor 1 by transmission of power to transmission shaft 11, the middle and upper part being positioned at the transmission shaft 11 of tank body 9 is connected with stirring cutter fixed mount 4, this stirring cutter fixed mount 4 is connected with the stirring cutter 21 for stirring material in tank body 9, and the lower end of described transmission shaft 11 is connected with even blanking control assembly B28.
Described tank body 9 top is provided with reductor fixed support 3, and reductor 1 is connected with stepping motor 10 and is fixed on reductor fixed support 3.
Described reductor fixed support 3 is connected with planetary reduction gear 2, transmission shaft 13 is through the sun wheel 13 of described planetary reduction gear 2, the planet wheel spindle 23 of planetary reduction gear 2 through planetary reduction gear 2 housing 24 and be fixedly connected with it, and the upper end of described planet wheel spindle 23 is connected with reductor fixed support 3, on the planet wheel spindle 23 being positioned at planetary reduction gear 2 inside, cover has satellite gear 12, sun wheel 13 is meshed with satellite gear 12, and satellite gear 12 is meshed with internally toothed annulus 14; Described stirring cutter fixed mount 4 is connected with the internally toothed annulus 14 of described planetary reduction gear 2, and internally toothed annulus 14 drives stirring cutter fixed mount 4 to rotate.
Described even blanking control assembly B28 comprises the blanking cover B29 be fixedly connected with transmission shaft 11, and blanking cover B29 is provided with at least one inlet point 18, and blanking cover B29 top is taper, bottom is cylindrical.
Blanking principle of the present utility model is:
Stepping motor 10 transmission is to reductor 11, reductor 11 drives transmission shaft 11 to rotate, transmission shaft 11 is connected with the sun wheel 13 of planetary reduction gear 2, by sun wheel 13 through satellite gear 12 transmission to internally toothed annulus 14, internally toothed annulus 14 drives stirring cutter fixed mount 4 to rotate, stirring cutter fixed mount 4 is provided with stirring cutter 21, completes the stirring of material.
The rotating speed of the revolution ratio sun wheel 13 of internally toothed annulus 14 is little, then stirring cutter fixed mount 4 moment of torsion after slowing down becomes large.
Lifting cover 8 is enclosed within the bottom of transmission shaft 11, can freely up and down slide, and by the lifting of setting nut 16, lifting cover 8 can be regulated in the liftable distance in transmission shaft 11 direction.
Stirring cutter 21 rotation asynchronous with transmission shaft 11, improves the homogeneity of blanking, improves the precision of material metering.
Blanking cover B29 rotates with different speed, and material will enter from inlet point 18 with different amounts, regulates the speed of stepping motor 10, just can regulate the feed rate of blanking cover B29 inlet point 18, reach the object of even blanking.
The scheme that the present embodiment provides, compared to the device mentioned in background technology, during Frequency Converter Control ordinary three-phase synchronous in background technology, characteristic during electric motor starting be torque from 0 to maximum, like this unloading phase meet obstructions will stall.Unloaded normal operation of threephase asynchronous machine is 1-50HZ, if run with load is lower than a certain numerical value, such as 5HZ, threephase asynchronous machine meeting stall, unless improved power of motor.
If when during ordinary three-phase synchronous 50HZ, rotating speed is 1450RPM, the rotating speed of 5HZ is that 145RPM turns.If reduction ratio is 10, exporting is then 14.5RPM, then each second is have the corner of 87 °.And the minimum speed of motor can not lower than this special value.
During shutdown, the inertia torque of threephase asynchronous machine is larger, and when to receive after halt instruction to shutdown, the angle turned over is too large, causes blanking too much, has a strong impact on precision.If adopt the motor of more high-performance motor or employing 8 poles, electric energy can be wasted, and motor price is also higher.
In the device that the present embodiment provides, reductor 1 is driven to rotate by stepping motor 10.Characteristic when stepping motor starts is the minimum value of torque when slowly dropping to maximum power from maxim, so much larger than threephase asynchronous machine when stepper motor torque numerical value starts, and therefore can not stall.
Preferably be chosen as: stepping motor 10 is set as 725RPM, reductor reduction ratio is 50, and exporting is 14.5RPM equally.The advantage of the program be can the rotating speed of stepping motor arrange less, such as 400RPM, 100RPM, even can be set to 1RPM or less, if be 1RPM, the output of reductor 1 is 0.12 ° of angle per second.
Meanwhile, the reduction ratio of planetary reduction gear 2 be 5 and stepping motor rotating speed is 725RPM time, the rotating speed of planetary reduction gear 2 internally toothed annulus is 2.9RPM, and theoretically, the torque of stirring cutter 21 in turn increases 5 times.More low power stepping motor 10 can be used like this to be used as the propulsion source of this device.
Therefore; this device adopts stepping motor to drive reductor running; when stepping motor receives deceleration instruction or halt instruction; the output speed of stepping motor is more prone to control; and output shaft inertia is much smaller than common asynchronous three phase electric machine; the angle that even blanking control assembly turns over is slower less, and weigh for blanking like this, precision is higher.
In the present embodiment, reductor 1 is driven by stepping motor 10, reductor 1 drives transmission shaft 11 to rotate, transmission shaft 11 drives planetary reduction gear 2 again, for the earlier solutions of my company mentioned in background technology, its beneficial effect is that stepping motor 10 moment of torsion of starting to walk is high, by the deceleration of reductor 1 with planetary reduction gear 2, substantially increase the starting torque of stirring cutter, reduce the horsepower output of motor, even if also not easily stall when being placed with a large amount of material in tank body 9, and find that the effect horse power of stepping motor 10 used is far smaller than ordinary three-phase synchronous power through experiment test, significantly save electric energy, and the rotating speed of stepping motor 10 can arrange lower, be more convenient for improve cutting stock precision.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (7)
1. a granular material uniform discharge device, it is characterized in that: comprise tank body, this tank body top is provided with stepping motor and reductor, stepping motor is connected with reductor, reductor by transmission of power to transmission shaft, the middle and upper part being positioned at the transmission shaft of tank body is connected with stirring cutter fixed mount, and this stirring cutter fixed mount is connected with the stirring cutter for stirring material in tank, and the lower end of described transmission shaft is connected with even blanking control assembly.
2. granular material uniform discharge device according to claim 1, is characterized in that: described tank body top is provided with reductor fixed support, and reductor is fixed on reductor fixed support.
3. granular material uniform discharge device according to claim 2, it is characterized in that: described reductor fixed support is connected with planetary reduction gear, transmission shaft is through the sun wheel of described planetary reduction gear, the planet wheel spindle of planetary reduction gear is through the housing of planetary reduction gear, and described planet wheel spindle is connected with reductor fixed support; Described stirring cutter fixed mount is connected with the internally toothed annulus of described planetary reduction gear, and internally toothed annulus drives stirring cutter fixed mount to rotate.
4. granular material uniform discharge device according to claim 1, it is characterized in that: described even blanking control assembly comprises the blanking cover A be connected with propeller shaft slip, transmission shaft bottom is fixedly connected with enclosing, described enclosing is provided with at least one inlet point, enclosing is covered in inside by blanking cover A.
5. granular material uniform discharge device according to claim 4, it is characterized in that: described blanking cover A inside is provided with some spring slide bars, be provided with guide bearing chock in enclosing, guide bearing chock be provided with the center bearing pilot bearing matched with described spring slide bar quantity.
6. granular material uniform discharge device according to claim 5, is characterized in that: described transmission shaft is provided with for regulating the setting nut of blanking cover A adjustable height and the jam nut for locking setting nut, and blanking cover A is enclosed within setting nut bottom.
7. granular material uniform discharge device according to claim 1, is characterized in that: described even blanking control assembly comprises the blanking cover B be fixedly connected with transmission shaft, and blanking cover B is provided with at least one inlet point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420492442.8U CN204150727U (en) | 2014-08-28 | 2014-08-28 | A kind of granular material uniform discharge device |
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| CN201420492442.8U CN204150727U (en) | 2014-08-28 | 2014-08-28 | A kind of granular material uniform discharge device |
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| CN204150727U true CN204150727U (en) | 2015-02-11 |
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| CN201420492442.8U Expired - Fee Related CN204150727U (en) | 2014-08-28 | 2014-08-28 | A kind of granular material uniform discharge device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210856A (en) * | 2014-08-28 | 2014-12-17 | 张永利 | Uniform powdery material feeding device |
| CN106424715A (en) * | 2016-09-07 | 2017-02-22 | 重庆市九瑞粉末冶金有限责任公司 | Holding container for powder metallurgy |
| CN107963349A (en) * | 2017-11-21 | 2018-04-27 | 王森杰 | A kind of Rare Earth Production uniformly addition ore equipment |
| CN113318544A (en) * | 2021-06-17 | 2021-08-31 | 洛阳中联水泥有限公司 | Automatic dust device of windrow |
-
2014
- 2014-08-28 CN CN201420492442.8U patent/CN204150727U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210856A (en) * | 2014-08-28 | 2014-12-17 | 张永利 | Uniform powdery material feeding device |
| CN106424715A (en) * | 2016-09-07 | 2017-02-22 | 重庆市九瑞粉末冶金有限责任公司 | Holding container for powder metallurgy |
| CN107963349A (en) * | 2017-11-21 | 2018-04-27 | 王森杰 | A kind of Rare Earth Production uniformly addition ore equipment |
| CN107963349B (en) * | 2017-11-21 | 2019-06-28 | 陈碧霞 | A kind of Rare Earth Production uniformly addition ore equipment |
| CN113318544A (en) * | 2021-06-17 | 2021-08-31 | 洛阳中联水泥有限公司 | Automatic dust device of windrow |
| CN113318544B (en) * | 2021-06-17 | 2022-06-17 | 洛阳中联水泥有限公司 | Automatic dust device of windrow |
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