CN203939936U - The speed change gear of electric motor car - Google Patents

The speed change gear of electric motor car Download PDF

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Publication number
CN203939936U
CN203939936U CN201420398401.2U CN201420398401U CN203939936U CN 203939936 U CN203939936 U CN 203939936U CN 201420398401 U CN201420398401 U CN 201420398401U CN 203939936 U CN203939936 U CN 203939936U
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CN
China
Prior art keywords
gear
speed
casing
selector fork
fork axle
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Expired - Fee Related
Application number
CN201420398401.2U
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Chinese (zh)
Inventor
胡可怀
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CHONGQING FURUI MACHINE-BUILDING Co Ltd
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CHONGQING FURUI MACHINE-BUILDING Co Ltd
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Priority to CN201420398401.2U priority Critical patent/CN203939936U/en
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Publication of CN203939936U publication Critical patent/CN203939936U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a kind of speed change gear of electric motor car, comprise casing, be arranged on the speed changer in casing, and the selector fork axle of speed changer, the shift fork being fixedly connected with on described selector fork axle and the power shift gear clamping of speed changer, described selector fork axle is axially movable selector fork axle, one end of described selector fork axle overhanging go out casing, on described casing, fixedly mount an electromagnetic actuator device for shifting gears, the moving iron core of described electromagnetic actuator device and the overhanging end axle of selector fork axle are located by connecting fixing, the Outlet of the electromagnetic coil of described electromagnetic actuator device is electrically connected with DC electrical source through control gear, described control gear is for controlling energising or the power-off of electromagnetic coil, make iron core produce axial motion.It is simple in structure, cost is low, manipulation is simple, control is reliable.

Description

The speed change gear of electric motor car
Technical field
The utility model relates to vehicle speed variation field, particularly a kind of speed change gear of electric motor car.
Background technique
Modern vehicle is all provided with speed change gear, and kinetic energy is passed to speed change gear by power input device, realizes the conversion between high speed and low speed etc. by speed change gear.Existing speed change gear is mostly manual gear shifting, comprises casing, is arranged on speed changer in casing and the selector fork axle of speed changer, and one end of selector fork axle is connected with drawing cable mechanism.Drawing cable mechanism is controlled in cooperation by clutch pedal and gear shifting rod, make shift fork slippage on selector fork axle, promote synchronizer clutch collar change engagement object by shift fork and realize variable block, not only controlling unit is many, handle loaded down with trivial details, variable block reliability is poor, and the complex structure of manual gear shifting, bulky, can increase cost and the weight of vehicle.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of speed change gear of electric motor car is provided, and it is simple in structure, cost is low, manipulation is simple, control is reliable.
The technical solution of the utility model is: a kind of speed change gear of electric motor car, comprise casing, be arranged on the speed changer in casing, and the selector fork axle of speed changer, the shift fork being fixedly connected with on described selector fork axle and the power shift gear clamping of speed changer, described selector fork axle is axially movable selector fork axle, one end of described selector fork axle overhanging go out casing, on described casing, fixedly mount an electromagnetic actuator device for shifting gears, the moving iron core of described electromagnetic actuator device and the overhanging end axle of selector fork axle are located by connecting fixing, the Outlet of the electromagnetic coil of described electromagnetic actuator device is electrically connected with DC electrical source through control gear, described control gear is for controlling energising or the power-off of electromagnetic coil, make iron core produce axial motion.
Described electromagnetic actuator device comprises housing, in the housing of electromagnetic actuator device, be provided with support frame, coiling electromagnetic coil on described support frame, the Outlet of described electromagnetic coil is connected with the output terminal of control gear, described power supply is connected with the input end of control gear, described moving iron core is arranged in the central shaft hole of support frame, is slidably matched with support frame.
The housing of described electromagnetic actuator device comprises cylindrical case and is separately fixed at the first end cap and second end cap of cylindrical case two axial ends, described support frame is arranged in cylindrical case, and axially locating, between the first end cap and the second end cap, is respectively equipped with travel displacement between the two ends of described moving iron core and the first end cap, the second end cap.
Described moving iron core and a pitman shaft are to being located by connecting, and described connecting rod is fixedly connected with the overhanging end screw thread of selector fork axle.
The electromagnetic coil of described electromagnetic actuator device is one, and described control gear is used for controlling this electromagnetic coil sense of current, makes iron core in electromagnetic actuator device, produce axial motion.
Described control gear is provided with delay circuit, and this delay circuit is used for making power-off after electromagnetic coil energising a period of time, is provided with permanent magnet, for the location of moving iron core being fixed after electromagnetic coil power-off in described electromagnetic actuator device.
The two ends of described electromagnetic actuator device are all fixed with connecting cover, on described casing, are fixed with connecting plate, and connecting plate, connecting cover are provided with corresponding bolt hole, and bolt is fixed on casing through the bolt hole of connecting plate, connecting cover by electromagnetic actuator device.
Described speed changer is rear axle transmission, this rear axle transmission comprises selector fork axle, one-level transmission shaft, secondary drive shaft and differential mechanism, described one-level transmission shaft and secondary drive shaft are parallel to each other, described secondary drive shaft and selector fork axle are parallel to each other, described selector fork axle is supported in casing, and coordinate with box body-sliding, described one-level transmission shaft, secondary drive shaft, differential mechanism is the rotating casing that is supported in respectively, on the shaft part of described one-level transmission shaft, be circumferentially fixed with input gear, high speed driving gear, low-speed active gear, on the shaft part of described secondary drive shaft, be set with high speed driven gear, low speed driven gear, described high speed driving gear, low-speed active gear respectively with high speed driven gear, the engagement of low speed driven gear, between described high speed driven gear and low speed driven gear, be provided with power shift gear, described power shift gear is circumferentially fixed on the shaft part of secondary drive shaft, and power shift gear and secondary drive shaft are slidably matched, on described selector fork axle, be fixed with shift fork, the other end of described shift fork coordinates with power shift gear clamping, stirring power shift gear by shift fork slides axially, make power shift gear with high speed driven gear or the engagement of low speed driven gear or separate, on the shaft part of described secondary drive shaft, be circumferentially fixed with differential pinion, on differential casing, be fixed with differential gearwheel, described differential pinion engages with differential gearwheel.
Described high speed driving gear empty set is on one-level transmission shaft, described one-level transmission shaft is provided with radial direction through hole, in described radial direction through hole, be provided with stage clip, the two ends of stage clip are overlapped respectively the first unidirectional Xie piece, the second unidirectional Xie piece, the first unidirectional Xie piece, the second unidirectional Xie piece and radial direction through hole Spielpassung, the inwall of described high speed driving gear is provided with at least two draw-in grooves that are positioned on same diameter, for respectively with the first unidirectional Xie piece, the second unidirectional Xie piece clamping, form unidirectional circumferentially fixing.
Described secondary drive shaft is provided with the spline extending vertically, the inwall of described power shift gear is provided with the spline spline fitted of spline tooth and secondary drive shaft, form circumferentially fixing, described high speed driven gear and low speed driven gear are equipped with internal tooth, two axial ends of described power shift gear are equipped with external tooth, for engaging with the internal tooth of high speed driven gear, low speed driven gear respectively.
Adopt technique scheme: because the selector fork axle of the speed change gear of this electric motor car is axially movable selector fork axle, one end of described selector fork axle overhanging go out casing, on described casing, fixedly mount an electromagnetic actuator device for shifting gears, the moving iron core of described electromagnetic actuator device and the overhanging end axle of selector fork axle are located by connecting fixing, the Outlet of the electromagnetic coil of described electromagnetic actuator device is electrically connected with DC electrical source through control gear, described control gear is for controlling the positive reverse direction flow of electromagnetic coil electric current, the magnetic field suction of controlling electromagnetic coil makes an iron core left side, right motion, thereby drive the axial left side of selector fork or move right, power shift gear is engaged with high speed driven gear or low speed driven gear, realize vehicle shift speed change.Adopt this electromagnetic actuator device to realize shift speed change, controlling unit is few, simple in structure, and cost is low, handiness, and gear conversion flexibility and reliability, good operating stability, rate of fault is little, and the life-span is long, and volume is little.
Described control gear is provided with delay circuit, and this delay circuit is used for making power-off after electromagnetic coil energising a period of time, is provided with permanent magnet, for the location of moving iron core being fixed after electromagnetic coil power-off in described electromagnetic actuator device.Delay circuit is set and makes power-off after electromagnetic coil energising a period of time, avoid electromagnetic coil because switching on and burn for a long time, after electromagnetic coil energising, will move iron core inhales moving, complete the speed change of vehicle, by permanent magnet, the location of moving iron core is fixed again, moving iron core is positioned on the gear of conversion, avoid extraneous factor that iron core is produced mobile, make the utility model working stability, and long service life.
Described moving iron core and a pitman shaft are to being located by connecting, and described connecting rod is fixedly connected with the overhanging end screw thread of selector fork axle, make speed changer and electromagnetic actuator device installation, dismantle more convenient, quick.
The two ends of described electromagnetic actuator device are all fixed with connecting cover, on described casing, be fixed with connecting plate, connecting plate, connecting cover are provided with corresponding bolt hole, bolt is fixed on electromagnetic actuator device on casing through the bolt hole of connecting plate, connecting cover, described connecting plate, connecting cover are provided with the via hole passing for selector fork axle, described selector fork axle overhanging go out one end of casing be provided with outside thread, described connecting rod is provided with the tapped hole for being fixedly connected with selector fork axle, also make speed changer and electromagnetic actuator device installation, dismantle more convenient, quick.
Brief description of the drawings
Fig. 1 is schematic appearance of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is that the B-B of Fig. 1 is to sectional view;
Fig. 4 be Fig. 3 high speed driven gear install K to schematic diagram;
Fig. 5 is the structural representation of high speed driving gear of the present utility model;
Fig. 6 is the structural representation of the first unidirectional Xie piece of the present utility model;
Fig. 7 is the structural representation of the second unidirectional Xie piece of the present utility model;
Fig. 8 is the schematic diagram of electromagnetic actuator device of the present utility model;
Fig. 9 is the sectional view of electromagnetic actuator device of the present utility model;
Figure 10 is that the C-C of Fig. 9 is to sectional view;
Figure 11 is electromagnetic coil coiling schematic diagram of the present utility model;
Figure 12 is an embodiment's of control gear electromagnetic coil power pack circuit diagram;
Figure 13 is another embodiment's electromagnetic coil power pack circuit diagram;
Figure 14 is the fingertip control partial circuit figure of control gear.
In accompanying drawing, 1 is casing, 1a is the first support, 1b is the second support, 2 is selector fork axle, 31 is cylindrical case, 32 is the first end cap, 33 is the second end cap, 4 is moving iron core, 5 is support frame, 51 is the first circular groove, 52 is the second circular groove, axis hole centered by 53, 6 is electromagnetic coil, 7 is permanent magnet, 8 is connecting cover, 9 is connecting rod, 10 is one-level transmission shaft, 11 is secondary drive shaft, 121 is differential casing, 122 is planet axis, 123 is planet axis bevel gear, 124 is semi-axle bevel gear, 13 is input gear, 14 is high speed driving gear, 141 is draw-in groove, 15 is low-speed active gear, 16 is power shift gear, 17 is shift fork, 18 is high speed driven gear, 19 is low speed driven gear, 20 is differential pinion, 21 is differential gearwheel, 22 is stage clip, 23 is the first unidirectional Xie piece, 24 is the second unidirectional Xie piece, 25 is control gear.
Embodiment
Referring to Fig. 1 to Figure 11, a kind of embodiment of the speed change gear of electric motor car, comprise casing 1, be arranged on speed changer in casing and the selector fork axle of speed changer, described selector fork axle 2 is axially movable selector fork axle, one end of described selector fork axle overhanging go out casing, on described casing, be fixed with an electromagnetic actuator device, the cylindrical case 31 that described electromagnetic actuator device comprises and be separately fixed at the first end cap 32 and second end cap 33 of cylindrical case two axial ends, is provided with support frame 5 in described cylindrical case.Described support frame is polyamide skeleton.In the central shaft hole of support frame, be provided with a copper sheathing, for Supported Nylon skeleton, prevent polyamide skeleton distortion.The end in opposite directions of described the first end cap and the second end cap is respectively equipped with positioning step, and support frame is positioned between the first end cap and the second end cap.In the central shaft hole of described support frame, be sliding combined with a moving iron core 4.Between the two ends of described moving iron core and the first end cap, the second end cap, be respectively equipped with travel displacement.The two ends of described moving iron core are respectively equipped with cone shape hole, described the first end cap, the second end cap are respectively equipped with the corresponding in opposite directions round platform extending, corresponding with the cone shape hole at the two ends of moving iron core, make moving iron core and the first end cap, the second end cap in the process of gearshift, not interfere, and ensure gearshift travel displacement.Described moving iron core 4 is connected with connecting rod 9 axially locating.The described moving iron core of the present embodiment and connecting rod by an axis pin of the spring to being located by connecting.Described the first end cap, the second end cap are provided with corresponding pilot hole, the two ends of described connecting rod are slidably matched with the pilot hole of the first end cap, the second end cap respectively, and leave axially movable degrees of freedom, one end of this connecting rod 9 and selector fork axle 2 overhanging go out the overhanging end of casing be fixedly connected with, on described support frame, be wound with electromagnetic coil 6, the Outlet of described electromagnetic coil 6 is electrically connected with DC electrical source through control gear 25, forms work loop.Described control gear 25 is for controlling the positive reverse direction flow of electromagnetic coil electric current, and the magnetic field suction of controlling electromagnetic coil makes iron core produce axial motion.The two ends of described electromagnetic actuator device are all fixed with connecting cover 8, on described casing 1, be fixed with connecting plate, connecting plate, connecting cover are provided with corresponding bolt hole, bolt is fixed on electromagnetic actuator device on casing through the bolt hole of connecting plate, connecting cover, described connecting plate, connecting cover are provided with the via hole passing for selector fork axle, described selector fork axle overhanging go out one end of casing be fixedly connected with connecting rod screw thread.Described selector fork axle overhanging go out one end of casing be provided with outside thread, described connecting rod is provided with the tapped hole for being fixedly connected with selector fork axle.
The input end of described control gear is connected with DC electrical source by wire.Described power acquisition 60V DC electrical source.The output terminal of described control gear is connected with the Outlet of electromagnetic coil by wire.Referring to Figure 12 and Figure 13, control gear can adopt electric current forward and reverse of Control electromagnetic coil J, also can adopt electric current forward and reverse of thyristor control electromagnetic coil.Described control gear 25 comprises Direct box, main circuit, control knob, tutorial light, and described main circuit is potted in Direct box.Described Direct box is fixed on the cylindrical case of electromagnetic actuator device, certainly, also can be arranged on as required other places of vehicle.Described Direct box is provided with the joint for connecting power supply.Described tutorial light comprises forward tutorial light, reverse tutorial light, is specifically set to green LED tutorial light and red LED tutorial light.Described control gear is provided with delay circuit, and this delay circuit is used for making power-off after electromagnetic coil energising a period of time.This control gear adopts the time delay of single-chip microcomputer timer.Referring to Figure 14, this control gear comprises that model is the single-chip microcomputer of 80C51, control knob SB1, tutorial light D12, tutorial light D22 one end are connected with single-chip microcomputer by wire, and the other end of control knob SB1, tutorial light D12, tutorial light D22 connects 5V power supply by wire.Energising or the power-off of the relay coil of described single-chip microcomputer in relay drive circuit control Figure 12, thus the electric current of control electromagnetic coil is forward and reverse.Described single-chip microcomputer also can be connected with the MC34063 chip in Figure 13, controls voltage reversal.
Described support frame is provided with permanent magnet 7, for fixing, the location to moving iron core after electromagnetic coil power-off.Described permanent magnet is two semicircular ring.Described support frame 5 is provided with the first circular groove 51 for coil is installed, and described support frame is provided with the second circular groove 52 for permanent magnet is installed, and described support frame is provided with central shaft hole 53.
Described casing 1 comprises the first support 1a and the second support 1b.Described the first support 1a and the second support 1b are respectively equipped with corresponding installation journal stirrup.Described speed changer is arranged between the first support 1a and the second support 1b, and described the first support 1a and the second support 1b are bolted to connection.Described speed changer is rear axle transmission, this rear axle transmission comprises selector fork axle 2, one-level transmission shaft 10, secondary drive shaft 11 and differential mechanism, described one-level transmission shaft 10 is parallel to each other with secondary drive shaft 11, described secondary drive shaft 11 is parallel to each other with selector fork axle 2, described selector fork axle 2 is supported in casing 1, and is slidably matched with casing 1.Between described selector fork axle 2 and casing 1, pass through oil sealing sealing.Described one-level transmission shaft 10, secondary drive shaft 11, differential mechanism be the rotating casing 1 that is supported in respectively.Two axial ends of described one-level transmission shaft 10 respectively by bearings on the bearing support of the first support 1a and the second support 1b, two axial ends of described secondary drive shaft 11 respectively by bearings on the bearing support of the first support 1a and the second support 1b.On the shaft part of described one-level transmission shaft 10, be circumferentially fixed with input gear 13, high speed driving gear 14, low-speed active gear 15, make the power that input gear 13 is exported pass to high speed driving gear 14 and low-speed active gear 15 by one-level transmission shaft 10, drive high speed driving gear 14 and low-speed active gear 15 to rotate.The low-speed active gear 15 of the present embodiment, input gear 13, high speed driving gear 14 are successively set on the shaft part of one-level transmission shaft 10, and the shaft part of the one-level transmission shaft 10 between low-speed active gear 15 and input gear 13 is provided with lining.On the shaft part of described secondary drive shaft 11, be set with high speed driven gear 18, low speed driven gear 19, described high speed driving gear 14, low-speed active gear 15 engage with high speed driven gear 18, low speed driven gear 19 respectively, make the transmission of power of high speed driving gear 14 and low-speed active gear 15 to high speed driven gear 18, low speed driven gear 19, drive high speed driven gear 18, low speed driven gear 19 to rotate.Between described high speed driven gear 18 and low speed driven gear 19, be provided with power shift gear 16, described power shift gear 16 is circumferentially fixed on the shaft part of secondary drive shaft 11, and power shift gear 16 is slidably matched with secondary drive shaft 11.Described high speed driven gear 18, low speed driven gear 19 are by shaft block ring axial limiting.On described selector fork axle 2, be fixed with shift fork 17, the other end of described shift fork 17 coordinates with power shift gear 16 clampings, stirring power shift gear 16 by shift fork 17 slides axially, make power shift gear 16 engage or separate with high speed driven gear 18 or low speed driven gear 19, to realize the power-converting at a high speed and between low speed.In the time that power shift gear 16 engages with high speed driven gear 18 or low speed driven gear 19, high speed driven gear 18 or low speed driven gear 19 by transmission of power to power shift gear 16, by power shift gear 16 by transmission of power to secondary drive shaft 11, drive secondary drive shaft 11 rotate.One end of described shift fork 17 is fixedly connected with selector fork axle 2, and the other end of described shift fork 17 coordinates with power shift gear 16 clampings.Described shift fork 17 is fixed on a ladder installation sleeve, and described ladder installation sleeve is socketed on selector fork axle 2, by the bearing pin that radially passes selector fork axle 2, ladder installation sleeve is fixed on selector fork axle 2.On the shaft part of described secondary drive shaft 11, be circumferentially fixed with differential pinion 20, make differential pinion 20 along with secondary drive shaft 11 is rotated.On described differential mechanism, be fixed with differential gearwheel 21, described differential pinion 20 engages with differential gearwheel 21, makes differential pinion 20 drive differential gearwheel 21 to rotate, thus by transmission of power to differential mechanism, to realize speed change.
Described the first support 1a and the second support 1b are provided with corresponding differential mechanism mounting hole.Described differential mechanism comprises differential casing 121, two axial ends of described differential casing 121 respectively by bearings between the first support 1a and the differential mechanism mounting hole of the second support 1b.Described differential gearwheel 21 is bolted on differential casing 121, in the inner chamber of described differential casing 121, be radially provided with a planet axis 122, described planet axis 122 is mutually vertical with secondary drive shaft 11, in this planet axis 122, assemble a pair of planet axis bevel gear 123, the inner chamber intermediate gap of differential casing 121 is combined with two semi-axle bevel gears 124, two semi-axle bevel gears 124 are positioned on same shaft axis, and two-semiaxle bevel gear 124 all engages with a pair of planet axis bevel gear 123.On the wall of described differential casing 121, be radially provided with symmetrical planet axis 122 mounting holes, the inner chamber of described planet axis 122 mounting holes and differential casing 121 is vertical and communicate, one axial end end face of described differential casing 121 is provided with pin-and-hole, pin-and-hole communicates with planet axis 122 mounting holes, planet axis 122 is provided with the hole of passing for locating stud, and planet axis 122 is located by locating stud with differential casing 121.
Described high speed driving gear 14 empty sets are on one-level transmission shaft 10, described one-level transmission shaft 10 is provided with radial direction through hole 81, in described radial direction through hole 81, be provided with stage clip 22, the two ends of stage clip 22 are overlapped respectively the first unidirectional Xie piece 23, the second unidirectional Xie piece 24, the first unidirectional Xie piece 23, the second unidirectional Xie piece 24 and radial direction through hole 81 Spielpassung, the inwall of described high speed driving gear 14 is provided with at least two draw-in grooves 141 that are positioned on same diameter, for respectively with the first unidirectional Xie piece 23, the second unidirectional Xie piece 24 clampings, form unidirectional circumferentially fixing.When the utility model is used for electric motor car, and electric motor car is in the time of forward gear, the power of electric motor car output drives one-level transmission shaft 10 forward rotation to input gear 13, the power that input gear 13 is exported can pass to high speed driving gear 14 and low-speed active gear 15 by one-level transmission shaft 10, drives high speed driving gear 14 and low-speed active gear 15 to rotate.Electric motor car is in the time reversing gear, electric vehicle position drives one-level transmission shaft 10 to rotate backward in the power of output to input gear 13, high speed driving gear 14 can not form circumferentially fixing with one-level transmission shaft 10, the power that input gear 13 is exported is merely able to pass to low-speed active gear 15 by one-level transmission shaft 10, drive low-speed active gear 15 to rotate, and high speed driving gear 14 does not rotate, and makes electric motor car in the time reversing gear, can only be with low cruise, make the Security of electric motor car higher.
Described secondary drive shaft 11 is provided with the spline extending vertically, the inwall of described power shift gear 16 is provided with the spline spline fitted of spline tooth and secondary drive shaft 11, form circumferentially fixing, power shift gear 16 can be slid axially along the spline of secondary drive shaft 11, and power shift gear 16 remain circumferentially and is fixedly connected with secondary drive shaft 11.Described high speed driven gear 18 and low speed driven gear 19 are equipped with internal tooth, two axial ends of described power shift gear 16 are equipped with external tooth, for engaging with the internal tooth of high speed driven gear 18, low speed driven gear 19 respectively, make high speed driven gear 18 or low speed driven gear 19 power can be passed to secondary drive shaft 11 through power shift gear 16.
When control gear powers on for the first time, press control knob, green indicating lamp (forward tutorial light) is bright, the suction that electromagnetic coil produces attracts moving iron core to drive selector fork axle to move right, power shift gear is engaged with low speed driven gear, realize low speed driving, power-off after electromagnetic coil delay power 3S, green indicating lamp continues demonstration current state, and after electromagnetic coil power-off, permanent magnet is fixed moving iron core.Again press control knob, red led (oppositely tutorial light) is bright, the contrary suction that electromagnetic coil produces attracts moving iron core to drive the axial left movement of selector fork, power shift gear is engaged with high speed driven gear, realization is run at high speed, power-off after electromagnetic coil delay power 3S, red led continues demonstration current state, and after electromagnetic coil power-off, permanent magnet is fixed moving iron core.

Claims (10)

1. the speed change gear of an electric motor car, comprise casing, be arranged on the speed changer in casing, and the selector fork axle of speed changer, the shift fork being fixedly connected with on described selector fork axle and the power shift gear clamping of speed changer, it is characterized in that: described selector fork axle is axially movable selector fork axle, one end of described selector fork axle overhanging go out casing, on described casing, fixedly mount an electromagnetic actuator device for shifting gears, the moving iron core of described electromagnetic actuator device and the overhanging end axle of selector fork axle are located by connecting fixing, the Outlet of the electromagnetic coil of described electromagnetic actuator device is electrically connected with DC electrical source through control gear, described control gear is for controlling energising or the power-off of electromagnetic coil, make iron core produce axial motion.
2. the speed change gear of electric motor car according to claim 1, it is characterized in that: described electromagnetic actuator device comprises housing, in the housing of electromagnetic actuator device, be provided with support frame, coiling electromagnetic coil on described support frame, the Outlet of described electromagnetic coil is connected with the output terminal of control gear, described power supply is connected with the input end of control gear, and described moving iron core is arranged in the central shaft hole of support frame, is slidably matched with support frame.
3. the speed change gear of electric motor car according to claim 2, it is characterized in that: the housing of described electromagnetic actuator device comprises cylindrical case and is separately fixed at the first end cap and second end cap of cylindrical case two axial ends, described support frame is arranged in cylindrical case, and axially locating, between the first end cap and the second end cap, is respectively equipped with travel displacement between the two ends of described moving iron core and the first end cap, the second end cap.
4. according to the speed change gear of the electric motor car described in claim 1 or 2 or 3, it is characterized in that: described moving iron core and a pitman shaft are to being located by connecting, and described connecting rod is fixedly connected with the overhanging end screw thread of selector fork axle.
5. the speed change gear of electric motor car according to claim 1, it is characterized in that: the electromagnetic coil of described electromagnetic actuator device is one, described control gear is used for controlling this electromagnetic coil sense of current, makes iron core in electromagnetic actuator device, produce axial motion.
6. the speed change gear of electric motor car according to claim 1 or 5, it is characterized in that: described control gear is provided with delay circuit, this delay circuit is used for making power-off after electromagnetic coil energising a period of time, in described electromagnetic actuator device, be provided with permanent magnet, for the location of moving iron core being fixed after electromagnetic coil power-off.
7. the speed change gear of electric motor car according to claim 1, it is characterized in that: the two ends of described electromagnetic actuator device are all fixed with connecting cover, on described casing, be fixed with connecting plate, connecting plate, connecting cover are provided with corresponding bolt hole, and bolt is fixed on casing through the bolt hole of connecting plate, connecting cover by electromagnetic actuator device.
8. the speed change gear of electric motor car according to claim 1, it is characterized in that: described speed changer is rear axle transmission, this rear axle transmission comprises selector fork axle, one-level transmission shaft, secondary drive shaft and differential mechanism, described one-level transmission shaft and secondary drive shaft are parallel to each other, described secondary drive shaft and selector fork axle are parallel to each other, described selector fork axle is supported in casing, and coordinate with box body-sliding, described one-level transmission shaft, secondary drive shaft, differential mechanism is the rotating casing that is supported in respectively, on the shaft part of described one-level transmission shaft, be circumferentially fixed with input gear, high speed driving gear, low-speed active gear, on the shaft part of described secondary drive shaft, be set with high speed driven gear, low speed driven gear, described high speed driving gear, low-speed active gear respectively with high speed driven gear, the engagement of low speed driven gear, between described high speed driven gear and low speed driven gear, be provided with power shift gear, described power shift gear is circumferentially fixed on the shaft part of secondary drive shaft, and power shift gear and secondary drive shaft are slidably matched, on described selector fork axle, be fixed with shift fork, the other end of described shift fork coordinates with power shift gear clamping, stirring power shift gear by shift fork slides axially, make power shift gear with high speed driven gear or the engagement of low speed driven gear or separate, on the shaft part of described secondary drive shaft, be circumferentially fixed with differential pinion, on differential casing, be fixed with differential gearwheel, described differential pinion engages with differential gearwheel.
9. the speed change gear of electric motor car according to claim 8, it is characterized in that: described high speed driving gear empty set is on one-level transmission shaft, described one-level transmission shaft is provided with radial direction through hole, in described radial direction through hole, be provided with stage clip, the two ends of stage clip are overlapped respectively the first unidirectional Xie piece, the second unidirectional Xie piece, the first unidirectional Xie piece, the second unidirectional Xie piece and radial direction through hole Spielpassung, the inwall of described high speed driving gear is provided with at least two draw-in grooves that are positioned on same diameter, for respectively with the first unidirectional Xie piece, the second unidirectional Xie piece clamping, form unidirectional circumferentially fixing.
10. the speed change gear of electric motor car according to claim 8, it is characterized in that: described secondary drive shaft is provided with the spline extending vertically, the inwall of described power shift gear is provided with the spline spline fitted of spline tooth and secondary drive shaft, form circumferentially fixing, described high speed driven gear and low speed driven gear are equipped with internal tooth, two axial ends of described power shift gear are equipped with external tooth, for engaging with the internal tooth of high speed driven gear, low speed driven gear respectively.
CN201420398401.2U 2014-07-18 2014-07-18 The speed change gear of electric motor car Expired - Fee Related CN203939936U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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CN106051070A (en) * 2015-04-08 2016-10-26 本田技研工业株式会社 Speed change unit
CN106609842A (en) * 2017-01-12 2017-05-03 西南大学 Gearshift mechanism, gearbox and electric vehicle
CN110159747A (en) * 2019-06-05 2019-08-23 安徽江淮汽车集团股份有限公司 Shift actuator and gearbox
CN111577885A (en) * 2019-01-31 2020-08-25 湖南中成动力科技有限公司 Automatic gear shifting device of combined electromagnet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106051070A (en) * 2015-04-08 2016-10-26 本田技研工业株式会社 Speed change unit
CN106051070B (en) * 2015-04-08 2018-05-29 本田技研工业株式会社 Speed change gear
CN106609842A (en) * 2017-01-12 2017-05-03 西南大学 Gearshift mechanism, gearbox and electric vehicle
CN111577885A (en) * 2019-01-31 2020-08-25 湖南中成动力科技有限公司 Automatic gear shifting device of combined electromagnet
CN110159747A (en) * 2019-06-05 2019-08-23 安徽江淮汽车集团股份有限公司 Shift actuator and gearbox

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