CN205371498U - Metal belt buncher with motor control machinery transmission speed governing - Google Patents
Metal belt buncher with motor control machinery transmission speed governing Download PDFInfo
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- CN205371498U CN205371498U CN201620127244.0U CN201620127244U CN205371498U CN 205371498 U CN205371498 U CN 205371498U CN 201620127244 U CN201620127244 U CN 201620127244U CN 205371498 U CN205371498 U CN 205371498U
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Abstract
The utility model discloses a metal belt buncher with motor control machinery transmission speed governing, include: the transmission shaft, its driving shaft and driven shaft that includes parallel arrangement, first lead screw axle, rotatable fixing on the driving shaft, second lead screw axle, rotatable fixing on the driven shaft, a speed control mechanism can drive the axial displacement of initiative awl dish along the driving shaft, the 2nd speed control mechanism, its rotatable support is on driven movable awl dish, and second lead screw axle is established and screw -thread fit to the cover simultaneously, can drive driven movable awl dish along the axial displacement of driven shaft, and the pressurization speed control mechanism of the mechanical transmission mode of adoption bi -motor control, can reduce hydraulic component, reduce and maintain the degree of difficulty to transmission efficiency has been improved.
Description
Technical field
This utility model relates to technical field of automobile transmission, controls the metal band type stepless speed variator of machine driving speed governing particularly to a kind of motor.
Background technology
At present, general buncher speed governing and compression system are Electronic Control hydraulic system, and the feature of this type of system is according to control strategy set in advance, can to apply pressure according to the demand speed governing of rotating speed and moment of torsion with to cone dish, but the energy consumption of hydraulic system and relatively costly, reliability is relatively low.The electronically controlled buncher of existing machinery is used in small-power operating mode such as motorcycle more, or minicar, but owing to its power is less, there is no the necessary load to compression system and governing system and optimized.But in powerful application, load as too high in automobile, pressurization and governing system will largely effect on the performance of system, reliability and life-span, therefore applies less.
The existing buncher being commonly utilized on automobile is mainly metallic steel belt and swing pin chain type buncher (CVT), the two maximum difference is exactly on flexible transmission component, the former mostly is the metal V-shaped band of block-pushing, the latter is pendulum pin chain, but speed adjusting gear is unanimous on the whole, all adopting Electronic Control hydraulic system to promote the driving pulley on speed governing cone dish, the radius changing principal and subordinate's drive pulley carries out speed governing.nullThe feature of this type of system is can according to control strategy set in advance,Demand speed governing according to rotating speed and moment of torsion and cone dish is applied pressure，But owing to adopting hydraulic system inevitably to there is the energy consumption height of hydraulic system，Cost is high，Processing、Installation accuracy is high，The shortcoming that reliability is low，Various hydraulic valve therein，Pump is main dissipative cell，Pump in buncher according to relevant statistics、Hydraulic system and fluid torque-converter consume 27% (calculating according to Japan 10～15 state of cyclic operation) or 16.7% (the calculating according to Europe NEDC state of cyclic operation) of total input energy，Just this energy loss cause buncher make electromotor work in the best condition and the advantage of fuel-economizing is weakened，Only obtain the oil consumption result suitable with manual transmission (MT)，Although buncher in hgher efficiency also emerges gradually，But the loss in efficiency caused due to hydraulic system still can not be ignored，And owing to the structure of buncher is often more complicated，Adopt hydraulic system that maintenance requirement is high，Buncher damage tends not to repairing can only integral replacing.
Utility model content
A purpose of the present utility model is to have designed and developed a kind of motor to control the metal band type stepless speed variator of machine driving speed governing, adopt the pressurization speed adjusting gear of the mechanical drive mode of motor control, Hydraulic Elements can be reduced, reduce maintenance difficulties, and adopt multiple-threaded screw transmission, improve transmission efficiency.
The technical scheme that this utility model provides is:
A kind of motor controls the metal band type stepless speed variator of machine driving speed governing, including:
Driving shaft, it is rotatably supported on case of transmission, for receiving the rotary power of electromotor or motor；
Driven shaft, it is rotatably supported on case of transmission, for outputting rotary power；
And
First lead screw shaft, its inner hollow, outer surface is provided with screw thread, and rotatable is fixed on described driving shaft；
Second lead screw shaft, its inner hollow, outer surface is provided with screw thread, and rotatable is fixed on described driven shaft；
First speed adjusting gear, it is rotatably supported on active movement cone dish, simultaneously sheathed described first lead screw shaft and threaded engagement；Described initiative taper dish moving axially along described driving shaft can be driven；
Second speed adjusting gear, it is rotatably supported on driven movable cone dish, sheathed described second lead screw shaft and threaded engagement simultaneously；Described driven movable cone dish moving axially along described driven shaft can be driven；
First motor, it drives described first lead screw shaft to rotate；
Second motor, it drives described second lead screw shaft to rotate.
Preferably, described first speed adjusting gear, including:
First pressurization pushes away cylinder, and it be that bearings is passed through on described active movement cone dish in cylindrical shape and one end；
First speed governing nut, it is positioned at the first pressurization and pushes away cylinder interior, and is fixed on described first pressurization and pushes away the other end of cylinder, and the centre bore female thread of described first speed governing nut and the external screw thread of described first lead screw shaft coordinate；
Described second speed adjusting gear, including:
Second pressurization pushes away cylinder, its be cylindrical shape and one end by bearings on described driven activity cone dish；
Second speed governing nut, it is positioned at the second pressurization and pushes away cylinder interior, and is fixed on described second pressurization and pushes away the other end of cylinder, and the centre bore female thread of described second speed governing nut and the external screw thread of described second lead screw shaft coordinate.
Preferably, between described lead screw shaft and described speed governing nut, it is provided with ball, is used for reducing gearing friction resistance.
Preferably, described first lead screw shaft arranges the second holddown spring near arranging the first holddown spring and/or described second lead screw shaft between one end and active movement cone dish of described active movement cone dish near between one end and driven movable cone dish of described driven movable cone dish.
Preferably, also include deceleration device, including:
Reduction pinion teeth, its described motor output shaft of fixing connection；
Deceleration gear wheel, it is helical gears, and it engages with described reduction pinion teeth, and coaxial with worm shaft；
Worm gear, it is fixed on described lead screw shaft one end away from described cone dish, and with described worm engaging.
Preferably, also include:
Wheel speed sensors, it is arranged near the circumferential outer edge of actively fixed cone dish and/or driven fixed cone dish；
Directive slide track, it is separately fixed at the outside of described first speed adjusting gear and the second speed adjusting gear；
Position Scale, it is separately fixed at the outer surface of described first speed adjusting gear and the second speed adjusting gear the strip chute of the described directive slide track of traverse；
Displacement transducer, it is arranged on inside case of transmission, measures the distance between described movable cone dish and fixed cone dish by the displacement of measurement and positioning scale.
Preferably, also include:
Power shaft, itself and described driving shaft are coaxially disposed, for receiving the rotary power of since engine or motor；
Clutch, it is arranged between described power shaft and driving shaft, optionally combines and separates.
Preferably, described clutch is electromagnetic clutch or hydraulic clutch.
Preferably, also include: single motor control model and bi-motor coupling control model；
Described single motor Active Control Mode, described first motor or described second motor are opened, and another motor cuts out, it is achieved gear ratio regulates；
Described bi-motor coupling control model, described first motor and the second motor start simultaneously, it is achieved gear ratio regulates.
Beneficial effect
1, described a kind of motor of the present utility model controls the metal band type stepless speed variator variator of machine driving speed governing, adopt the pressurization speed adjusting gear of the mechanical drive mode of motor control, Hydraulic Elements can be reduced, reduce maintenance difficulties, and adopt multiple-threaded screw transmission, improve transmission efficiency.
2, described a kind of motor of the present utility model controls the metal band type stepless speed variator variator of machine driving speed governing, buncher output shaft brake coupling is coaxial with buncher, realize fixed speed ratio output, it is prevented that motor rotation blockage, extend the service life of motor.
3, described a kind of motor of the present utility model controls the metal band type stepless speed variator variator of machine driving speed governing, and clutch power power shaft is coaxial with transmission power power shaft, it is achieved variator forward gear and the switching reversed gear.
4, this utility model is to design on original metal band type buncher basis, has and produces the feature that inheritance is good.
5, this utility model adopts four sections of pin-connected panel housing designs, and each housing can individually be opened, easy disassembly and maintenance.
Accompanying drawing explanation
Fig. 1 is the drive mechanism schematic diagram that a kind of motor described in the utility model controls the metal band type stepless speed variator variator of machine driving speed governing.
Fig. 2 is the first speed adjusting gear assembly structure schematic diagram described in the utility model.
Fig. 3 is the first lead screw shaft assembly structure schematic diagram described in the utility model.
Fig. 4 is the first deceleration device assembly structure schematic diagram described in the utility model.
Fig. 5 is the first deceleration device assembly structure side view described in the utility model.
Fig. 6 is clutch described in the utility model and planet row assembly structure schematic diagram.
Fig. 7 is the first buncher output shaft brake coupling structural representation.
Fig. 8 is the second buncher output shaft brake coupling structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
As it is shown in figure 1, the Motor controlling machine tool drive speed-adjusting metal band type stepless speed variator that this utility model provides includes:
Driving shaft 1, its rotatable by bearings on case of transmission 2, for receiving the rotary power of electromotor or motor, outside sheathed active hollow axle 44；
Driven shaft 38, its rotatable by bearings on case of transmission 27, for outputting rotary power, outside sheathed driven hollow axle 21；And
First lead screw shaft 7, its inner hollow, outer surface is provided with hemisphere face ball road, and rotatable by bearings on driving shaft 1；
Second lead screw shaft 22, its inner hollow, outer surface is provided with hemisphere face ball road, and rotatable by bearings on driven shaft 38；Wherein, the helical pitch of the first lead screw shaft 7 and the second lead screw shaft 22 is 10mm-12mm.
First speed adjusting gear 8, its rotatable by bearings on active movement cone dish 11, sheathed first lead screw shaft 7 and being coordinated by ball screw assembly, simultaneously；Initiative taper dish 11 moving axially along driving shaft 1 can be driven；
Second speed adjusting gear 28, its rotatable by bearings on driven movable cone dish 31, sheathed second lead screw shaft 22 being coordinated by ball screw assembly, simultaneously；Driven movable cone dish 31 moving axially along driven shaft 38 can be driven；
First motor 4, it drives the first lead screw shaft 7 to rotate by worm couple；
Second motor 26, it drives the second lead screw shaft 22 to rotate by worm couple.
Wherein, driving pulley cone disc mechanism includes: actively fixed cone dish 14, it is connected with driving shaft 1 by spline；
Active movement cone dish 11, it is oppositely arranged with actively fixed cone dish 14, is connected with driving shaft 1 by roller ball key 10；
Driven pulley cone disc mechanism includes: driven fixed cone dish 37, it is connected with driven shaft 38 by spline；
Driven movable cone dish 31, it is oppositely arranged with actively fixed cone dish 37 and is connected with driven shaft 38 by roller ball key；
Wherein, driving pulley cone disc mechanism and driven pulley cone disc mechanism adopt the metal V-shaped band 13 of block-pushing to carry out transmission.
As in figure 2 it is shown, the first speed adjusting gear 8, including:
First pressurization pushes away cylinder 803, and it be that bearings is passed through on active movement cone dish 11 in cylindrical shape and one end；
First speed governing nut 802, it pushes away cylinder 803 by bolt and the first pressurization and is connected as an entirety, and push away the other end of cylinder in described first pressurization, be that the hemisphere face raceway of hemisphere face raceway and the first lead screw shaft 7 is by internal recycle ball composition ball screw assembly, in the centre bore of the first speed governing nut 802；
Second speed adjusting gear 28, identical with the first speed adjusting gear 8 structure includes:
Second pressurization pushes away cylinder, its be cylindrical shape and one end by bearings on driven activity cone dish 31；
Second speed governing nut, it pushes away cylinder by bolt and the second pressurization and is connected as an entirety, and be fixed on the second pressurization and push away the other end of cylinder, be that the hemisphere face raceway of hemisphere face raceway and the first lead screw shaft 7 is by internal recycle ball composition ball screw assembly, in the centre bore of the second speed governing nut.
As it is shown on figure 3, be provided with ball 701 and ball 2101 between the first lead screw shaft 7 and the first speed governing nut 802 and between the second lead screw shaft 22 and the second speed governing nut, it is used for reducing frictional resistance.
First holddown spring 9, it is arranged on the first lead screw shaft 7 near between one end of active movement cone dish 11 and active movement cone dish 11, for the Automatic adjusument of active movement cone dish 11 with the actively spacing of fixed cone dish 14.
Second holddown spring 20, it is arranged on the second lead screw shaft 22 near between one end of driven movable cone dish 31 and driven movable cone dish 31, for the Automatic adjusument of driven movable cone dish 31 and the spacing of driven fixed cone dish 37.
Speed adjusting gear also includes: outboard bearing clamping seats 804；The angular contact ball bearing 805 arranged face-to-face, roller ball key 10, first pressurization pushes away cylinder 803 and is bolted with speed governing nut 802 pedestal, adopt the angular contact ball bearing 805 arranged face-to-face, stronger axial reciprocating load can be born, inboard bearing clamping seats 801 and outboard bearing clamping seats 804, clamp shaft bearing outer-ring, respectively activity cone dish near and promote bearing during away from fixed cone dish and pull bearing, bearing inner race is fixed on movable cone dish, prolongs by the mobile drive activity cone dish of bearing and moves axially.
As shown in Figure 4, Figure 5, between the first lead screw shaft 7 and the first motor 4, it is provided with the first deceleration device, including:
First reduction pinion teeth 3, its fixing connection first motor 4 output shaft；
First deceleration gear wheel 5, it is helical gears, and it engages with the first reduction pinion teeth 3, and is co-axially mounted with worm screw 6；
Worm gear, it is fixed on described lead screw shaft one end away from cone dish, and engages with worm screw 6.
It is provided with the second deceleration device between the second lead screw shaft 22 and the second motor 26, including:
Second reduction pinion teeth 25, its fixing connection second motor 26 output shaft；
Second deceleration gear wheel 24, it is helical gears, and it engages with the second reduction pinion teeth 25, and is co-axially mounted with worm screw 23；
Worm gear, it is fixed on described lead screw shaft one end away from cone dish, and engages with worm screw 23.
As viewed in figures 5-8, the first motor output shaft coaxially fixes a buncher output shaft brake coupling 46, and buncher output shaft brake coupling 46 is by clutch drivewheel 4601；Clutch friction plate rotating plate 4602；Clutch friction plate driven disc 4603；Clutch cylinder body 4604；Clutch plunger return spring 4605；Clutch plunger 4606 and the first motor output shaft 401 are constituted.When the first motor carries out speed governing, clutch friction plate rotating plate 4602 and clutch friction plate driven disc 4603 separate, and when needs are with fixed speed ratio transmission, clutch friction plate rotating plate 4602 and clutch friction plate driven disc 4603 combine, the first motor power-off.
Second motor output shaft coaxially fixes a buncher output shaft brake coupling 47, and buncher output shaft brake coupling 47 is by clutch drivewheel 4701；Clutch friction plate rotating plate 4702；Clutch friction plate driven disc 4703；Clutch cylinder body 4704；Clutch plunger return spring 4705；Clutch plunger 4706 and the second motor output shaft 2601 are constituted.When the second motor carries out speed governing, clutch friction plate rotating plate 4702 and clutch friction plate driven disc 4703 separate, and when needs are with fixed speed ratio transmission, clutch friction plate rotating plate 4702 and clutch friction plate driven disc 4703 combine, the second motor power-off.
In another embodiment, also include wheel speed sensors and displacement transducer, wherein, displacement transducer includes actively displacement transducer 41 and driven displacement transducer 30, driving pulley wheel speed sensors 12 is fixed on actively driving pulley detecting rotational speed dish 15 detecting rotational speed initiative taper disc mechanism wheel speed in speed governing cone pulley mechanism by mensuration, and it is fast from mantle plate wheel that driven pulley wheel speed sensors 32 is fixed in driven speed governing cone pulley mechanism driving pulley detecting rotational speed dish 40 detecting rotational speed by mensuration.
It is outside that second directive slide track 29 is fixed on the second speed adjusting gear 28, and the second speed adjusting gear 28 can slide along directive slide track 29, and it is outside that the first directive slide track 42 is fixed on the first speed adjusting gear 8, and the first speed adjusting gear 8 can slide along the first directive slide track 42.
Position Scale, it is separately fixed at the outer surface of described first speed adjusting gear 8 and the second speed adjusting gear 28 the strip chute of the described directive slide track of traverse；
Displacement transducer, it is arranged on inside case of transmission, measures the distance between movable cone dish and fixed cone dish by the displacement of measurement and positioning scale.
In another embodiment, also including decelerator, it is rotatably connected driven shaft 38, is used for outputing power, also includes between reducing output shaft and driven shaft, intermediate speed pinion 39, and it is arranged on driven shaft 38 position, by gear 36 Driven Gear of Final Reduction Gear 33 broad in the middle；Intermediate gear shaft 34, and main reducing gear input little gear 35 constitute decelerator, dynamic retarding is exported vehicle wheel shaft.
First speed adjusting gear 8 work process is as follows:
nullFirst motor 4 rotates，The primary speed-down device of the position of output axle being arranged on the first motor 4 decelerates to desired winding number，And obtain bigger torque，Primary speed-down device is coaxial with worm screw，Worm drive is arranged on one end worm gear pole of the first lead screw shaft 7 and rotates，Worm couple again slows down and increases driving torque，First lead screw shaft 7 rotates around own axes under turbine drive，The rotary motion of the first lead screw shaft 7 is converted into the first speed governing nut 802 by ball screw assembly, and moves axially along the first lead screw shaft 7，First pressurization pushes away cylinder 803，Move left and right along the first lead screw shaft 7 together with the first speed governing nut 802，Thus the distance changed between active movement cone dish 11 and active fixed cone dish 14，When distance diminishes，The driving pulley cone disc mechanism transmission radius of active movement cone dish 11 and actively fixed cone dish 14 composition becomes big，When distance becomes big，The driving pulley cone disc mechanism transmission radius of active movement cone dish 11 and actively fixed cone dish 14 composition diminishes.
Second speed adjusting gear 28 work process is identical with the work process of the first speed adjusting gear 8.
When the transmission radius that driving pulley bores disc mechanism becomes big, the corresponding transmission radius regulating driven pulley cone disc mechanism diminishes, and gear ratio diminishes, and the torque passing to automotive wheel diminishes；When the transmission radius that driving pulley bores disc mechanism diminishes, the corresponding transmission radius regulating driven pulley cone disc mechanism becomes big, and gear ratio becomes big, and the torque passing to automotive wheel becomes big.
As a shown in Figure 6, planet carrier and forward gear clutch assembly 17 and reverse clutch and ring gear assembly clutch 18.This utility model driving shaft 1 input and one advances, reverse clutch connects, and this clutch assembly can adopt electromagnetic clutch or hydraulic clutch, adopts electromagnetic clutch can improve the transmission efficiency of system.This clutch assembly is made up of a Simpson planet row and advance, reverse clutch three part, including: reverse clutch piston/cylinder 1801, reverse clutch piston 1802；Change speed gear box sub-shell 45；Driving shaft 1；Sun gear 16；Ring gear 1803；Reverse clutch friction plate rotating plate 1804；Reverse clutch piston return spring 1805；Reverse clutch friction plate driven disc 1806；Planetary gear 1701；Forward gear clutch cylinder body 1702；Forward gear clutch plunger 1703；Power input shaft 1704；Forward gear clutch friction plate rotating plate 1705；Forward gear clutch friction plate driven disc 1706；, planet carrier 1708, forward gear clutch plunger return spring 1709；Advance, reverse clutch installs housing 19.
Power is inputted by planet carrier 1708, planet carrier 1708 can be held together by forward clutch with sun gear 16 and driving shaft 1, sun gear 16 is connected with driving shaft 1 by key, and ring gear 1803 and change speed gear box sub-shell 45 can be held together by reverse clutch.When vehicle advances, separately, forward clutch engages reverse clutch, and sun gear 16 and planet carrier 1708 are connected as with entirety, and planet row is with a unitary rotation；When for reversing gear, separately, reverse clutch combines forward clutch, and ring gear 1803 is fixed, and power is inputted by planet carrier 1708, and planetary gear 1701 drives sun gear 16 to rotate with planet carrier 1708 opposite direction.
When in buncher speed regulator speed regulation process, first motor 4 and the second motor 26 are energized, speed adjusting gear is started working, buncher output shaft brake coupling separates, when needs are with fixed speed ratio transmission, first motor 4 and the second motor 26 power-off, simultaneously, driving pulley buncher output shaft 46 and driven pulley buncher output shaft 47 are combined with coaxial mounted buncher output shaft brake coupling, driving pulley buncher output shaft 46 and driven pulley buncher output shaft 47 can not rotate, mechanical pressurization speed adjusting gear is locked, speed ratio is fixed, vehicle is with fixed speed ratio transmission.
Case body assembly includes: driving pulley buncher installs housing 2, driven pulley buncher installs housing 27 and advance, reverse clutch install housing 19, change speed gear box main casing 43 and change speed gear box sub-shell 45, and wherein said case body all can independently split.
Implement, for the work process of the metal band type stepless speed variator controlling machine driving speed governing with motor, to be described further,
Step one, driving pulley wheel speed sensors 12 is fixed on driving pulley cone disc mechanism by mensuration, driving pulley detecting rotational speed dish 15 detecting rotational speed driving pulley cone disc mechanism wheel speed, driven pulley wheel speed sensors 32 is fixed on driving pulley detecting rotational speed dish 40 detecting rotational speed driven pulley cone disc mechanism wheel speed in driven pulley speed governing cone pulley mechanism by mensuration, calculates gear ratio and detects the travel speed of automobile in real time；
Step 2, when speed and target vehicle speed are not inconsistent, calculates target change gear ratio, is adjusted by any one in mode in following three,
Single motor actively control mode: the second motor 26 cuts out, first motor 4 is energized, the first lead screw shaft 7 is driven to rotate, thus driving the first speed adjusting gear 8 axially movable, actively the distance between fixed cone dish 14 and active movement cone dish 11 becomes big or diminishes, metal V-shaped band 13 length is fixed, driven movable cone dish 31 adapts to the metal V-shaped change with 13 speed governing radiuses automatically by the second holddown spring 20, i.e. distance between adaptive change driven fixed cone dish 37 and driven movable cone dish 31, variator exports with target change gear ratio；
Single driven control mode of motor: the first motor 4 cuts out, second motor 26 is energized, the second lead screw shaft 22 is driven to rotate, thus driving the second speed adjusting gear 28 axially movable, driven fixed cone dish 37 and become big from the distance between activity cone dish 31 or diminish, metal V-shaped band 13 length is fixed, the active movement cone dish 11 change by the first holddown spring 9 automatic metal V-belt 13 speed governing radius, i.e. distance between adaptive change active fixed cone dish 14 and active movement cone dish 11, variator exports with target change gear ratio；
nullWhen adopting bi-motor cross-couplings Synchronization Control，When automobile needs speedup or slows down，First motor 4 and the second motor 26 are opened simultaneously，Buncher output shaft brake coupling separates，The output shaft rotation of the first motor 4，The velocity of rotation of the first motor 4 is adjusted to desired winding number by the primary speed-down device of the position of output axle being arranged on the first motor 4，And obtain bigger torque，Primary speed-down device outfan is coaxial with worm screw，Driving is arranged on first lead screw shaft 7 one end worm gear wheel，First lead screw shaft 7 rotates around own axes under turbine drive，Speed governing nut 802 moves axially along the first lead screw shaft 7，Pressurization pushes away cylinder，Its one end connection activity cone dish，Move left and right along the first lead screw shaft 7 together with speed governing nut 802，Thus the distance changed between active movement cone dish 11 and active fixed cone dish 14，Groove in the middle of two cone dish walls forms a V-type，In like manner change the distance of driven movable cone dish 31 and driven fixed cone dish 37 simultaneously，First the power of engine output shaft output be delivered to the driving pulley cone disc mechanism of buncher，Then pass through the metal V-shaped band 13 of block-pushing and be delivered to driven pulley cone disc mechanism，Through decelerator after，Differential mechanism passes to wheel to drive automobile，Moved axially by the first speed adjusting gear 8 and the second speed adjusting gear 28 promotion activity cone dish during work and change driving pulley cone disc mechanism，Driven pulley cone disc mechanism and block-pushing are metal V-shaped with the transmission radius of clean-up between 13，The radius of clean-up can continuously adjust，Thus reaching to change the purpose of gear ratio，Realize infinitely variable speeds.
When needs are with fixed speed ratio transmission, first motor 4 and the second motor 26 power-off, simultaneously, driving pulley buncher output shaft 46 and the coaxial mounted buncher output shaft brake coupling of driven pulley buncher output shaft 47 combine, driving pulley buncher output shaft 46 and driven pulley buncher output shaft 47 can not rotate, mechanical pressurization speed adjusting gear is locked, and speed ratio is fixed, and vehicle is with fixed speed ratio transmission.
nullIn another embodiment，When adopting single motor accurately to control，When automobile needs to reduce output torque，First motor 4 is energized，Brake coupling separates，The output shaft rotation of the first motor 4，The velocity of rotation of the first motor 4 is adjusted to desired winding number by the primary speed-down device of the position of output axle being arranged on the first motor 4，Obtain bigger torque，Primary speed-down device outfan is coaxial with worm screw，Driving is arranged on first lead screw shaft 7 one end worm gear wheel，First lead screw shaft 7 rotates around own axes under turbine drive，Speed governing nut 802 moves axially along the first lead screw shaft 7，Pressurization pushes away cylinder，Its one end connection activity cone dish，Move along the first lead screw shaft 7 together with speed governing nut 802，Thus the distance changed between active movement cone dish 11 and active fixed cone dish 14，Make it diminish，Groove in the middle of two cone dish walls forms a V-type，The metal V-shaped length with 13 of block-pushing is fixed，Driven movable cone dish 31 compresses under the metal V-shaped effect with 13，Driven movable cone dish 31 becomes big with the distance of driven pulley fixed cone dish 37，Output speed ratio diminishes；
nullWhen automobile needs to increase output torque，Second motor 26 is energized，Brake coupling separates，The output shaft rotation of the second motor 26，The velocity of rotation of the second motor 26 is adjusted to desired winding number by the primary speed-down device of the position of output axle being arranged on the second motor 26，Obtain bigger torque，Primary speed-down device outfan is coaxial with worm screw，Driving is arranged on lead screw shaft one end worm gear wheel，Lead screw shaft rotates around own axes under turbine drive，Speed governing nut 802 moves axially along the first lead screw shaft 7，Pressurization pushes away cylinder，Its one end connection activity cone dish，Move along the first lead screw shaft 7 together with speed governing nut 802，Thus the distance changed between driven movable cone dish 31 and driven pulley fixed cone dish 37，Make it diminish，Groove in the middle of two cone dish walls forms a V-type，The metal V-shaped length with 13 of block-pushing is fixed，Active movement cone dish 11 compresses under the metal V-shaped effect with 13，Active movement cone dish 11 becomes big with the distance of driving pulley fixed cone dish 14，Output speed ratio becomes big.
Although embodiment of the present utility model is disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, this utility model is not limited to specific details and shown here as the legend with description.
Claims (9)
1. the metal band type stepless speed variator controlling machine driving speed governing with motor, it is characterised in that including:
Driving shaft, it is rotatably supported on case of transmission, for receiving the rotary power of electromotor or motor；
Driven shaft, it is rotatably supported on case of transmission, for outputting rotary power；
And
First lead screw shaft, its inner hollow, outer surface is provided with screw thread, and rotatable is fixed on described driving shaft；
Second lead screw shaft, its inner hollow, outer surface is provided with screw thread, and rotatable is fixed on described driven shaft；
First speed adjusting gear, it is rotatably supported on active movement cone dish, simultaneously sheathed described first lead screw shaft and threaded engagement；Described initiative taper dish moving axially along described driving shaft can be driven；
Second speed adjusting gear, it is rotatably supported on driven movable cone dish, sheathed described second lead screw shaft and threaded engagement simultaneously；Described driven movable cone dish moving axially along described driven shaft can be driven；
First motor, it drives described first lead screw shaft to rotate；
Second motor, it drives described second lead screw shaft to rotate.
2. control the metal band type stepless speed variator of machine driving speed governing according to claim 1 with motor, it is characterised in that described first speed adjusting gear, including:
First pressurization pushes away cylinder, and it be that bearings is passed through on described active movement cone dish in cylindrical shape and one end；
First speed governing nut, it is positioned at the first pressurization and pushes away cylinder interior, and is fixed on described first pressurization and pushes away the other end of cylinder, and the centre bore female thread of described first speed governing nut and the external screw thread of described first lead screw shaft coordinate；
Described second speed adjusting gear, including:
Second pressurization pushes away cylinder, its be cylindrical shape and one end by bearings on described driven activity cone dish；
Second speed governing nut, it is positioned at the second pressurization and pushes away cylinder interior, and is fixed on described second pressurization and pushes away the other end of cylinder, and the centre bore female thread of described second speed governing nut and the external screw thread of described second lead screw shaft coordinate.
3. control the metal band type stepless speed variator of machine driving speed governing according to claim 2 with motor, it is characterised in that be provided with ball between described lead screw shaft and described speed governing nut, be used for reducing gearing friction resistance.
4. motor according to claim 1 or claim 2 controls the metal band type stepless speed variator of machine driving speed governing, it is characterized in that, described first lead screw shaft arranges the second holddown spring near arranging the first holddown spring and/or described second lead screw shaft between one end and active movement cone dish of described active movement cone dish near between one end and driven movable cone dish of described driven movable cone dish.
5. control the metal band type stepless speed variator of machine driving speed governing according to claim 4 with motor, it is characterised in that also include deceleration device, including:
Reduction pinion teeth, its described motor output shaft of fixing connection；
Deceleration gear wheel, it is helical gears, and it engages with described reduction pinion teeth, and coaxial with worm shaft；
Worm gear, it is fixed on described lead screw shaft one end away from described cone dish, and with described worm engaging.
6. control the metal band type stepless speed variator of machine driving speed governing according to claim 1 with motor, it is characterised in that also include:
Wheel speed sensors, it is arranged near the circumferential outer edge of actively fixed cone dish and/or driven fixed cone dish；
Directive slide track, it is separately fixed at the outside of described first speed adjusting gear and the second speed adjusting gear；
Position Scale, it is separately fixed at the outer surface of described first speed adjusting gear and the second speed adjusting gear the strip chute of the described directive slide track of traverse；
Displacement transducer, it is arranged on inside case of transmission, measures the distance between described movable cone dish and fixed cone dish by the displacement of measurement and positioning scale.
7. motor according to claim 1 or claim 2 controls the metal band type stepless speed variator of machine driving speed governing, it is characterised in that also include:
Power shaft, itself and described driving shaft are coaxially disposed, for receiving the rotary power of since engine or motor；
Clutch, it is arranged between described power shaft and driving shaft, optionally combines and separates.
8. control the metal band type stepless speed variator of machine driving speed governing according to claim 7 with motor, it is characterised in that described clutch is electromagnetic clutch or hydraulic clutch.
9. motor according to claim 1 or claim 2 controls the metal band type stepless speed variator of machine driving speed governing, it is characterised in that also include: single motor control model and bi-motor coupling control model；
Described single motor Active Control Mode, described first motor or described second motor are opened, and another motor cuts out, it is achieved gear ratio regulates；
Described bi-motor coupling control model, described first motor and the second motor start simultaneously, it is achieved gear ratio regulates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127244.0U CN205371498U (en) | 2016-02-18 | 2016-02-18 | Metal belt buncher with motor control machinery transmission speed governing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620127244.0U CN205371498U (en) | 2016-02-18 | 2016-02-18 | Metal belt buncher with motor control machinery transmission speed governing |
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| CN205371498U true CN205371498U (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697700A (en) * | 2016-02-18 | 2016-06-22 | 吉林大学 | Metal belt type continuously variable transmission adopting motor-controlled mechanical transmission speed regulation and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697700A (en) * | 2016-02-18 | 2016-06-22 | 吉林大学 | Metal belt type continuously variable transmission adopting motor-controlled mechanical transmission speed regulation and method |
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