CN104613139A - Special gearbox with electric gear shifting function for electric vehicle - Google Patents

Special gearbox with electric gear shifting function for electric vehicle Download PDF

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Publication number
CN104613139A
CN104613139A CN201510051358.1A CN201510051358A CN104613139A CN 104613139 A CN104613139 A CN 104613139A CN 201510051358 A CN201510051358 A CN 201510051358A CN 104613139 A CN104613139 A CN 104613139A
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CN
China
Prior art keywords
gear
gear shifting
casing
driven
shift
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Granted
Application number
CN201510051358.1A
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Chinese (zh)
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CN104613139B (en
Inventor
黄迪
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Shandong Xiaoyi Electric Technology Co ltd
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Individual
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Publication of CN104613139A publication Critical patent/CN104613139A/en
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Publication of CN104613139B publication Critical patent/CN104613139B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
    • F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
    • F16H3/30—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial
    • F16H3/32—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial and an additional shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
    • F16H2055/065—Moulded gears, e.g. inserts therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

The invention discloses a special gearbox with the electric gear shifting function for an electric vehicle and relates to a gearbox. A small motor is installed in a closed cavity of the gearbox, speed reduction of output of the motor is achieved through a two-stage gear, a gear shifting pull rod is driven by a driven gear through internal threads to move leftwards and rightwards, and a gear shifting fork is driven by the gear shifting pull rod to move leftwards and rightwards to achieve gear shifting. The movement of the gear shifting fork is controlled through a vehicle speed sensor. The vehicle speed sensor senses a Hall element through magnetic steel installed on the driven gear, a gear shifting motor controller acquires a Hall signal so as to determine the number of the rotating turns of the driven gear, and then the stroke of the shifting fork is determined. When the Hall signal reaches a set numerical value, the gear shifting motor controller make the gear shifting motor stop rotating, and then gear shifting is completed. According to the gearbox, gear shifting is achieved accurately in time, and the vehicle can travel safely and reliably.

Description

There is the electric motor car special gear box of electric gear function
Technical field
The present invention relates to a kind of gearbox, be specifically related to a kind of electric motor car special gear box with electric gear function.
Background technique
The electric motor car special gear box used in the market, be that the people that rides pulls with hand gear shifting handle during gear shift, gear shifting handle drives bracing wire, drags gear shift pull bar by bracing wire, and then drives gear shift fork to realize gear shift.Due to complex structure, stroke and the bracing wire length of gear shifting handle not easily regulate; In use to be elongated etc. the impact of factor simultaneously by bracing wire, to cause extension not perform or out of supply in running process, affect driving operation, crisis driving safety time serious.Driver Manual operation handle gear shift simultaneously, what be unfavorable for electric motor car speed variator system proposes shelves upgrading, more can not realize full-automatic gear shift.
Summary of the invention:
In order to solve the problems of the technologies described above, the invention provides a kind of electric motor car special gear box with electric gear function, in an enclosed cavity of gearbox, brush direct-flow small motor is installed, motor exports by two-stage gear reduction, realizing driven gear drives gear shift pull bar to move left and right by internal thread, and gear shift pull bar drives fork to move left and right.The stroke of the fork of gear shift simultaneously can respond to Hall element by the magnet steel that driven gear is installed, and gear shifting motor controller determines by gathering hall signal the number of turns that driven gear rotates, and then determines the stroke of fork.When hall signal reaches setting numerical value, namely the controller of gear shifting motor allows gear shifting motor stall, namely completes this gear shift.By arranging on-off switch on electric vehicle rotary handle, gear shifting motor realizes clockwise and anticlockwise, can realize the conversion between high and low shift.
The present invention is achieved through the following technical solutions: a kind of electric motor car special gear box with electric gear function, comprise the speed change input gear, double crosslinking gear shaft, change gear axle and the gearbox output gear that are arranged on cabinets cavity, described speed change input gear to be connected with electric motor car main motor with power input shaft by gearbox and to obtain power.Described double crosslinking gear shaft there are bottom gear intermediate gear and top gear intermediate gear.Speed change input gear engages with top gear intermediate gear; Top gear intermediate gear engages with top gear driven gear simultaneously; Bottom gear intermediate gear engages with bottom gear driven gear.Described top gear driven gear and bottom gear driven gear are slidably matched respectively and are sleeved on change gear axle.There is gearbox output gear described change gear axle lower end, the final gears meshing on gearbox output gear and differential assembly.The middle part of change gear axle is provided with Formation of Axle Shaft Spline cover and speed change ring.Described speed change ring connects gear shift fork.It is characterized in that: described gear shift fork is arranged on gear shift pull bar by marking closely screw.Described gear shift pull bar is optical axis section at the two ends near gear shift fork, and wherein optical axis section in upper end stretches in the upper limit hole on casing, and lower end optical axis section, through the lower limit hole on casing, installs slip oil sealing in lower limit hole.The end that gear shift pull bar stretches out slip oil sealing is thread section.Described driven gear is the solid of rotation with multi-stage stairs; Described solid of rotation center makes tapped hole; Described tapped hole is connected with the thread section of gear shift tie rod end.One end of solid of rotation is arranged on casing by bearing I, and the other end of solid of rotation is arranged on gear shift end cap by bearing II; Described gear shift end cap is arranged on casing by bolt and locating stud.
Described driven gear engages with the small gear in duplicate gear, described duplicate gear) be arranged in the middle of casing and gear shift end cap by central gear axis, gearwheel in duplicate gear engages with gear shifting motor driving gear, described gear shifting motor driving gear is arranged on gear shifting motor, and described gear shifting motor is fixed by screws on casing;
The lower end mounting magnetic steel pallet of driven gear, described magnet steel pallet is cylindrical body, the uniform installation number of a cylindrical body periphery signal magnet steel; Hall support installed by the casing of magnet steel pallet outer rim, installs Hall element in Hall support, Hall element connects the controller of gear shifting motor by wire.
Belleville spring is placed between bearing I and casing bearing hole; Belleville spring is placed between bearing II and gear shift bearing with end cover hole end surface.
Described gear shifting motor is brush direct current motor.Driven gear, duplicate gear and shift motor driving gear are that metal powder metallurgy or nonmetallic material high pressure die casting form.
Good effect of the present invention is:
1, by electronic driver the on-off switch of upper installation, shift instruction is sent to the controller of gear shifting motor, gear shifting motor realizes forward or reverse under the control of the controller, the logical gear shift pull bar that drives of driven gear moves, gather the signal of Hall element generation with Time Controller, gear shifting motor puts in place at controller control fork and the motion of speed change ring, namely completes gear shift.Gearbox gear-shift is timely, and precisely, vehicle driving safety is reliable.
2, compact structure, rational technology, fabricating cost is low, is convenient to spread and uses.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
Fig. 1 is active force transmission internal structure schematic diagram (without casing) of the present invention.
Fig. 2 is the left view (removing gear shift case lid) of Fig. 1.
Fig. 3 is the A-A ladder sectional view of Fig. 2.
In figure: 1, gearbox power input shaft, 2, speed change input gear, 3, double crosslinking gear shaft, 3-1, bottom gear intermediate gear, 3-2, top gear intermediate gear, 4, speed change ring, 5, Formation of Axle Shaft Spline cover, 6, change gear axle, 6-1, bottom gear driven gear, 6-2, top gear driven gear, 7, gearbox output gear, 8, final gear, 9, differential assembly, 10, gear shift fork, 10-1 Cock screw; 11, upper limit hole; 12. lower limit holes, 13, gear shift pull bar; 14, slip oil sealing, 15, bearing I, 16, magnet steel pallet, 17, driven gear, 18, central gear axis, 19, duplicate gear, 20, shift motor driving gear, 21, gear shift end cap; 22, bearing II, 23, casing, 24, belleville spring, 25, gear shifting motor, 26, signal magnet steel, 27, Hall support, 28, Hall element.
Embodiment
As shown in Figure 1: a kind of electric motor car special gear box with electric gear function, the speed change input gear 2, double crosslinking gear shaft 3, change gear axle 6 and the gearbox output gear 7 that are arranged on casing 23 inner chamber is comprised.Described speed change input gear 2 to be connected with electric motor car main motor with power input shaft 1 by gearbox and to obtain power.Described double crosslinking gear shaft 3 there is bottom gear intermediate gear 3-1 and top gear intermediate gear 3-2.Speed change input gear 2 engages with top gear intermediate gear 3-2; Top gear intermediate gear 3-2 engages with top gear driven gear 6-2 simultaneously.Bottom gear intermediate gear 3-1 engages with bottom gear driven gear 6-1.Described top gear driven gear 6-2 and bottom gear driven gear 6-1 is slidably matched respectively and is sleeved on change gear axle 6.There is gearbox output gear 7 described change gear axle 6 lower end, and gearbox output gear 7 engages with the final gear 8 on differential assembly 9.The middle part of change gear axle 6 is provided with Formation of Axle Shaft Spline cover 5 and speed change ring 4.Described speed change ring 4 connects gear shift fork 10.
As shown in Figure 2 and Figure 3: described gear shift fork 10 is arranged on gear shift pull bar 13 by marking closely screw 10-1, described gear shift pull bar 13 is optical axis section at the two ends near gear shift fork 10, wherein optical axis section in upper end stretches in the upper limit hole 11 on casing 23, and lower end optical axis section is through the lower limit hole 12 on casing 23.In lower limit hole 12, slip oil sealing 14 is installed; Slip oil sealing 14 flows out along pull bar 13 for preventing the lubricant oil in casing 23.The stroke of gear shift fork 10 is limited between the end face in upper limit hole 11 and lower limit hole 12.
The end that gear shift pull bar 13 stretches out slip oil sealing 14 is thread section.Described driven gear 17 is the solid of rotation with multi-stage stairs; Solid of rotation center makes tapped hole; Described tapped hole is connected with the thread section of gear shift pull bar 13 end.One end of solid of rotation is arranged on casing 23 by bearing I 15, and the other end of solid of rotation is arranged on gear shift end cap 21 by bearing II 22.Described gear shift end cap 21 is arranged on casing 23 by bolt and locating stud.When driven gear 17 positive and negative direction rotates, the screw thread then positive and negative direction rotation of driven gear 17, gear shift pull bar 13 moves up and down under the drive of end thread, gear shift fork 10 is under the drive of gear shift pull bar 13, move left and right between upper limit hole 11 and the end face in lower limit hole 12, realize the conversion between high and low shift.Adopt screw-driven, after gear shifting motor 25 stall, because screw thread has auto-lock function, namely the position of fork 10 is locked, and can not cause out of supply.
As shown in Figure 2 and Figure 3: described driven gear 17 engages with the small gear in duplicate gear 19, described duplicate gear 19 is arranged in the middle of casing 23 and gear shift end cap 21 by central gear axis 18, and the gearwheel in duplicate gear 19 engages with gear shifting motor driving gear 20.Described gear shifting motor driving gear 20 is arranged on gear shifting motor 25, and described gear shifting motor 25 is fixed by screws on casing 23.
The lower end mounting magnetic steel pallet 16 of driven gear 17, described magnet steel pallet 16 is cylindrical body, the uniform installation number of a cylindrical body periphery signal magnet steel 26.Hall support 27 installed by the casing 23 of magnet steel pallet 16 outer rim, installs Hall element 28 in Hall support, Hall element 28 connects the controller of gear shifting motor 25 by wire.When driven gear 17 rotates, signal magnet steel 26 slips over Hall element 28, the signal number that Hall element (28) produces.When the hall signal number that controller receives reaches the number pre-set, reversing motor 25 meeting stall under the control of the controller, driven gear 17 is stall at once also, gear shift pull bar 13 and driven gear 17 locked under the effect of screw thread, namely gear shift fork 10 has been parked on the gear that change to, and locked.Prevent speed change ring 4 slippage because of the vibrations caused during pinion rotation at different levels in casing 23, cause out of supply.The signal number pre-set in the controller of reversing motor 25 is the pitch of the stroke according to gear shift fork 10, gear shift pull bar 13 and driven gear 17 and the number of signal magnet steel 26, by what calculate out.
As shown in Figure 3: between bearing I 15 and casing 23 bearing hole, place belleville spring 24; Belleville spring 24 is placed between bearing II 22 and gear shift end cap 21 bearing hole end face.The effect of belleville spring 24 is to eliminate the gap between driven gear 17 solid of rotation and mounting hole, is convenient to the stroke accurately controlling fork 10, makes each engage a gear starting point accurate.Can reduce when commutating between high and low shift, the impact force produced when the end face of gear shift fork 10 encounters the end face in upper limit hole 11 or lower limit hole 12 simultaneously, prevent the locking between the screw thread on the screw thread of driven gear 17 and gear shift pull bar 13.
As shown in Figure 3: in order to reduce fabricating cost, the present embodiment gear shifting motor 25 is brush direct current motor.Driven gear 17, duplicate gear 19 and shift motor driving gear 20 form for metal powder metallurgy or nonmetallic material high pressure die casting.

Claims (4)

1. one kind has the electric motor car special gear box of electric gear function, comprise the speed change input gear (2), double crosslinking gear shaft (3), change gear axle (6) and the gearbox output gear (7) that are arranged on casing (23) inner chamber, described speed change input gear (2) to be connected with electric motor car main motor with power input shaft (1) by gearbox and to obtain power; Described double crosslinking gear shaft (3) there are bottom gear intermediate gear (3-1) and top gear intermediate gear (3-2); Speed change input gear (2) engages with top gear intermediate gear (3-2); Top gear intermediate gear (3-2) engages with top gear driven gear (6-2) simultaneously; Bottom gear intermediate gear (3-1) engages with bottom gear driven gear (6-1); Described top gear driven gear (6-2) and bottom gear driven gear (6-1) are slidably matched respectively and are sleeved on change gear axle (6); There is gearbox output gear (7) described change gear axle (6) lower end, and gearbox output gear (7) engages with the final gear (8) on differential assembly (9); The middle part of change gear axle (6) is provided with Formation of Axle Shaft Spline cover (5) and speed change ring (4); Described speed change ring (4) connects gear shift fork (10); It is characterized in that: described gear shift fork (10) is arranged on gear shift pull bar (13) by marking closely screw (10-1), described gear shift pull bar (13) is optical axis section at the two ends near gear shift fork (10), wherein optical axis section in upper end stretches in the upper limit hole (11) on casing (23), lower end optical axis section, through the lower limit hole (12) on casing (23), installs slip oil sealing (14) in lower limit hole (12); The end that gear shift pull bar (13) stretches out slip oil sealing (14) is thread section; Described driven gear (17) is the solid of rotation with multi-stage stairs; Described solid of rotation center makes tapped hole; Described tapped hole is connected with the thread section of gear shift pull bar (13) end; One end of solid of rotation is arranged on casing (23) by bearing I (15), and the other end of solid of rotation is arranged on gear shift end cap (21) by bearing II (22); Described gear shift end cap (21) is arranged on casing (23) by bolt and locating stud;
Described driven gear (17) engages with the small gear in duplicate gear (19), described duplicate gear (19) is arranged in the middle of casing (23) and gear shift end cap (21) by central gear axis (18), gearwheel in duplicate gear (19) engages with gear shifting motor driving gear (20), described gear shifting motor driving gear (20) is arranged on gear shifting motor (25), and described gear shifting motor (25) is fixed by screws on casing (23);
Lower end mounting magnetic steel pallet (16) of driven gear (17), described magnet steel pallet (16) is cylindrical body, the uniform installation number of a cylindrical body periphery signal magnet steel (26); Hall support (27) installed by the casing (23) of magnet steel pallet (16) outer rim, install Hall element (28) in Hall support, Hall element (28) connects the controller of gear shifting motor (25) by wire.
2. the electric motor car special gear box with electric gear function according to claim 1, is characterized in that: between bearing I (15) and casing (23) bearing hole, place belleville spring (24); Belleville spring (24) is placed between bearing II (22) and gear shift end cap (21) bearing hole end face.
3. the electric motor car special gear box with electric gear function according to claim 1, is characterized in that: described gear shifting motor (25) is brush direct current motor.
4. the electric motor car special gear box with electric gear function according to claim 1, is characterized in that: described driven gear (17), duplicate gear (19) and shift motor driving gear (20) form for metal powder metallurgy or nonmetallic material high pressure die casting.
CN201510051358.1A 2015-01-30 2015-01-30 Special gearbox with electric gear shifting function for electric vehicle Active CN104613139B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN104613139B CN104613139B (en) 2017-02-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964005A (en) * 2015-06-12 2015-10-07 王钟辉 Electric tricycle gearbox with neutral gear
CN107420494A (en) * 2017-06-23 2017-12-01 重庆市綦江源泉机电有限公司 A kind of electric vehicle transmission
CN115013524A (en) * 2022-06-14 2022-09-06 跃成机电科技无锡有限公司 Automatic gear shifter assembly of electric bicycle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001193A2 (en) * 1998-11-13 2000-05-17 Aichi Kikai Kogyo Kabushiki Kaisha Automatic speed-change selector apparatus for a gear transmission
CN101457831A (en) * 2007-12-13 2009-06-17 比亚迪股份有限公司 Automatic gear shift mechanism for transmission
KR20130109868A (en) * 2012-03-28 2013-10-08 지앤씨 유한회사 Transmission for electric vehicle with submotor for transmission
CN103791074A (en) * 2014-03-01 2014-05-14 姜国清 Electric automatic gear shifting tricycle or quadricycle rear-drive shifter
CN204628447U (en) * 2015-01-30 2015-09-09 黄迪 There is the electric motor car special gear box of electric gear function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001193A2 (en) * 1998-11-13 2000-05-17 Aichi Kikai Kogyo Kabushiki Kaisha Automatic speed-change selector apparatus for a gear transmission
CN101457831A (en) * 2007-12-13 2009-06-17 比亚迪股份有限公司 Automatic gear shift mechanism for transmission
KR20130109868A (en) * 2012-03-28 2013-10-08 지앤씨 유한회사 Transmission for electric vehicle with submotor for transmission
CN103791074A (en) * 2014-03-01 2014-05-14 姜国清 Electric automatic gear shifting tricycle or quadricycle rear-drive shifter
CN204628447U (en) * 2015-01-30 2015-09-09 黄迪 There is the electric motor car special gear box of electric gear function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964005A (en) * 2015-06-12 2015-10-07 王钟辉 Electric tricycle gearbox with neutral gear
CN107420494A (en) * 2017-06-23 2017-12-01 重庆市綦江源泉机电有限公司 A kind of electric vehicle transmission
CN115013524A (en) * 2022-06-14 2022-09-06 跃成机电科技无锡有限公司 Automatic gear shifter assembly of electric bicycle

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Effective date of registration: 20151008

Address after: 221700 Jiangsu city of Xuzhou province Fengxian County Mingshi garden building 24 unit 401 room

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Address after: Plant No. 1, Xidong Industrial Park, Zhengtong Road, Xingren Street, High-tech Zone, Zaozhuang City, Shandong Province, 277000

Patentee after: Shandong Xiaoyi Electric Technology Co.,Ltd.

Address before: Room 401, Unit 1, Building 24, Mingshi Garden, Fengxian County, Xuzhou City, Jiangsu Province, 221700

Patentee before: Qin Hongzhi