CN104613139B - 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
CN104613139B
CN104613139B CN201510051358.1A CN201510051358A CN104613139B CN 104613139 B CN104613139 B CN 104613139B CN 201510051358 A CN201510051358 A CN 201510051358A CN 104613139 B CN104613139 B CN 104613139B
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China
Prior art keywords
gear
gear shifting
casing
driven
shift
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CN201510051358.1A
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Chinese (zh)
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CN104613139A (en
Inventor
黄迪
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Shandong Xiaoyi Electric Technology Co ltd
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Individual
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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

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 change speed gear box is and in particular to a kind of electric motor car special gear box with electric gear function.
Background technology
The electric motor car special gear box using in the market, is that the people that rides pulls with hand gear shifting handle, gear shift during gear shift 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, gear shift handss The stroke of handle and bracing wire length are difficult to adjust；The factor such as can be elongated in use by bracing wire is affected simultaneously, causes to hang Out of supply during not performing or travelling, affect driver behavior, crisis driving safety when serious.The handss of human pilot manual operation simultaneously Handle gear shift, be unfavorable for electric motor car speed change system proposes shelves upgrading, less enables full-automatic gear shift.
Content of the invention：
In order to solve above-mentioned technical problem, the present invention provides a kind of special speed change of electric motor car with electric gear function Case, is provided with brush direct-flow small motor in one of change speed gear box closing intracavity, and two-stage The gear deceleration is passed through in motor output, to realize from Moving gear drives gear shift pull bar to move left and right by female thread, and gear shift pull bar drives fork to move left and right.Gear shift fork simultaneously Stroke can be determined by gathering hall signal by the magnet steel sensing Hall element installed on driven gear, gear shifting motor controller The number of turns that driven gear rotates, and then determine the stroke of fork.When hall signal reaches setting numerical value, the controller of gear shifting motor Allow gear shifting motor stall, that is, complete this gear shift.By arranging on and off switch on electric vehicle rotary handle, gear shifting motor is just realized Reversion, that is, enable the conversion between high and low shift.
The present invention is achieved through the following technical solutions：A kind of special speed change of electric motor car with electric gear function Case, including the speed change input gear, double crosslinking gear shaft, change gear axle and the change speed gear box output gear that are arranged on cabinets cavity, institute The speed change input gear stated is connected with electric motor car main motor by gearbox power input shaft and obtains power.Described Low or first gear idler gear and top gear idler gear are had on double crosslinking gear shaft.Speed change input gear is nibbled with top gear idler gear Close；Top gear idler gear is engaged with top gear driven gear simultaneously；Low or first gear idler gear is engaged with low or first gear driven gear. Described top gear driven gear and low or first gear driven gear are slidably matched respectively and are sleeved on change gear axle.Described gear shift There is change speed gear box output gear gear shaft lower end, and change speed gear box output gear is engaged with the final gear on differential assembly.Gear shift tooth The middle part of wheel shaft is provided with Formation of Axle Shaft Spline set and speed change ring.Described speed change ring connects gear shift fork.It is characterized in that：Described changes Shelves fork is arranged on gear shift pull bar by marking closely screw.Described gear shift pull bar is being optical axis near the two ends of gear shift fork Section, wherein light shaft part in upper end stretches into the upper limit in the hole on casing, and lower end light shaft part passes through the lower limit hole on casing, lower limit In the hole installs slip oil sealing.The end that gear shift pull bar stretches out slip oil sealing is thread segment.Described driven gear is with multistage The revolving body of step；Described revolving body center makes screwed hole；Described screwed hole is connected with the thread segment of gear shift tie rod end Connect.One end of revolving body is arranged on casing by bearing I, and the other end of revolving body is arranged on gear shift end cap by bearing II On；Described gear shift end cap is arranged on casing by bolt and alignment pin.
Described driven gear is engaged with the little gear in duplicate gear, described duplicate gear) pass through central gear axis It is arranged in the middle of casing and gear shift end cap, the gear wheel in duplicate gear is engaged with gear shifting motor driving gear, described gear shift 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 cylinder, and cylinder periphery is uniformly installed Several signal magnet steel；The casing of magnet steel pallet outer rim is installed in Hall support, Hall support and Hall element is installed, Hall unit Part connects the controller of gear shifting motor by wire.
Disk spring is placed between bearing I and casing dead eye；Put between bearing II and gear shift bearing with end cover hole end surface Put disk spring.
Described gear shifting motor is brush direct current motor.Driven gear, duplicate gear and shift motor driving gear are gold Belong to powder metallurgy or nonmetallic materials compression casting forms.
The positive effect of the present invention is：
1, by the on and off switch installed in electric bicycle handlebar, send shift instruction, gear shift to the controller of gear shifting motor Forward or reverse realized under the control of the controller by motor, and driven gear leads to driving gear shift pull bar and moves, controller collection simultaneously The signal that Hall element produces, gear shifting motor controls fork and the motion of speed change ring to put in place in controller, that is, complete gear shift.Change speed gear box In time, precisely, vehicle driving safety is reliable for gear shift.
2, compact conformation, rational technology, low manufacture cost, it is easy to spread and use.
Brief description
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is active force of the present invention transmission internal structure schematic diagram (no casing).
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, in low or first gear Between gear, 3-2, top gear idler gear, 4, speed change ring, 5, Formation of Axle Shaft Spline set, 6, change gear axle, 6-1, low or first gear driven tooth Wheel, 6-2, top gear driven gear, 7, change speed gear box output gear, 8, final gear, 9, differential assembly, 10, gear shift fork, 10-1 holding 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, disk spring, 25, gear shifting motor, 26, signal magnet steel, 27, Hall support, 28, Hall unit Part.
Specific embodiment
As shown in Figure 1：A kind of electric motor car special gear box with electric gear function, including being arranged on casing 23 inner chamber Speed change input gear 2, double crosslinking gear shaft 3, change gear axle 6 and change speed gear box output gear 7.Described speed change input gear 2 It is connected with electric motor car main motor by gearbox power input shaft 1 and obtain power.Have on described double crosslinking gear shaft 3 Low or first gear idler gear 3-1 and top gear idler gear 3-2.Speed change input gear 2 is engaged with top gear idler gear 3-2；High Fast shelves idler gear 3-2 is engaged with top gear driven gear 6-2 simultaneously.Low or first gear idler gear 3-1 and low or first gear driven gear 6-1 engages.Described top gear driven gear 6-2 and low or first gear driven gear 6-1 is slidably matched respectively and is sleeved on change gear On axle 6.There is change speed gear box output gear 7 described change gear axle 6 lower end, on change speed gear box output gear 7 and differential assembly 9 Final gear 8 engages.The middle part of change gear axle 6 is provided with Formation of Axle Shaft Spline set 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 be light shaft part near the two ends of gear shift fork 10, wherein upper end light shaft part stretches into the upper limit on casing 23 In hole 11, lower end light shaft part passes through the lower limit hole 12 on casing 23.Slip oil sealing 14 is installed in lower limit hole 12；Slip oil sealing 14 are used for preventing the lubricating oil in casing 23 from flowing out along pull bar 13.The stroke of gear shift fork 10 is limited at upper limit hole 11 He Between the end face in lower limit hole 12.
The end that gear shift pull bar 13 stretches out slip oil sealing 14 is thread segment.Described driven gear 17 is with multi-stage stairs Revolving body；Revolving body center makes screwed hole；Described screwed hole is connected with the thread segment of gear shift pull bar 13 end.Revolving body One end be arranged on casing 23 by bearing I 15, the other end of revolving body 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 alignment pin.When driven gear 17 both forward and reverse directions rotate, from Then both forward and reverse directions rotate the screw thread of moving gear 17, and gear shift pull bar 13 moves up and down under the drive of end thread, and gear shift is pulled out Fork 10, then under the drive of gear shift pull bar 13, moves left and right between the end face in upper limit hole 11 and lower limit hole 12, realizes high Conversion between low grade.Using screw-driven, after gear shifting motor 25 stall, because screw thread has auto-lock function, the position of fork 10 Put and be locked, do not result in out of supply.
As shown in Figure 2 and Figure 3：Described driven gear 17 is engaged with the little gear in duplicate gear 19, described duplex-gear Wheel 19 is arranged in the middle of casing 23 and gear shift end cap 21 by central gear axis 18, and the gear wheel in duplicate gear 19 is electric with gear shift Owner's moving gear 20 engages.Described gear shifting motor driving gear 20 is arranged on gear shifting motor 25, described gear shifting motor 25 It 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 cylinder, and cylinder periphery is equal Several signal magnet steel 26 installed by cloth.The casing 23 of magnet steel pallet 16 outer rim is installed in Hall support 27, Hall support and installs Hall element 28, Hall element 28 connects the controller of gear shifting motor 25 by wire.When driven gear 17 rotates, signal magnet steel 26 slip over Hall element 28, the signal number that Hall element (28) produces.When the hall signal number that controller receives reaches During the number pre-setting, reversing motor 25 meeting stall under the control of the controller, driven gear 17 also stall at once, gear shift is drawn Bar 13 and driven gear 17 are locked in the presence of screw thread, and gear shift fork 10 has been parked on the gear that change to, and are locked Extremely.Prevent speed change ring 4 from slipping because of the vibrations causing during pinion rotation at different levels in casing 23, cause out of supply.Reversing motor 25 The signal number pre-setting in controller, is the spiral shell of the stroke, gear shift pull bar 13 and driven gear 17 according to gear shift fork 10 Away from and signal magnet steel 26 number, by calculate out.
As shown in Figure 3：Disk spring 24 is placed between bearing I 15 and casing 23 dead eye；In bearing II 22 and gear shift Disk spring 24 is placed between end cap 21 bearing hole end surface.The effect of disk spring 24 is to eliminate driven gear 17 revolving body and peace Gap between dress hole, is easy to the stroke of precise control fork 10, and it is accurate to make to hang grade starting point every time.Can reduce in height simultaneously When commutating between shelves, the end face of gear shift fork 10 encounters the impulsive force producing during the end face in upper limit hole 11 or lower limit hole 12, prevents The only locking between the screw thread on the screw thread and gear shift pull bar 13 of driven gear 17.
As shown in Figure 3：In order to reduce cost of manufacture, the present embodiment gear shifting motor 25 is brush direct current motor.Driven gear 17, duplicate gear 19 and shift motor driving gear 20 are metal powder metallurgy or nonmetallic materials compression casting forms.

Claims (4)

1. a kind of electric motor car special gear box with electric gear function, inputs including the speed change being arranged on casing (23) inner chamber Gear (2), double crosslinking gear shaft (3), change gear axle (6) and change speed gear box output gear (7), described speed change input gear (2) It is connected with electric motor car main motor by gearbox power input shaft (1) and obtain power；Described double crosslinking gear shaft (3) On have low or first gear idler gear (3-1) and top gear idler gear (3-2)；Speed change input gear (2) and top gear idler gear (3-2) engage；Top gear idler gear (3-2) is engaged with top gear driven gear (6-2) simultaneously；Low or first gear idler gear (3- 1) engage with low or first gear driven gear (6-1)；Described top gear driven gear (6-2) and low or first gear driven gear (6-1) point It is not slidably matched and be sleeved on change gear axle (6)；There is change speed gear box output gear (7) described change gear axle (6) lower end, becomes Fast case output gear (7) is engaged with the final gear (8) on differential assembly (9)；The middle part of change gear axle (6) is provided with half Axle spline housing (5) and speed change ring (4)；Described speed change ring (4) connects gear shift fork (10)；It is characterized in that：Described gear shift is pulled out Fork (10) is arranged on gear shift pull bar (13) by marking closely screw (10-1), and described gear shift pull bar (13) is near gear shift fork (10) two ends are light shaft part, and wherein upper end light shaft part stretches in the upper limit hole (11) on casing (23), and lower end light shaft part is worn Cross the lower limit hole (12) on casing (23), slip oil sealing (14) is installed in lower limit hole (12)；Gear shift pull bar (13) stretches out cunning The end of dynamic oil sealing (14) is thread segment；Driven gear (17) is the revolving body with multi-stage stairs；Described revolving body center Make screwed hole；Described screwed hole is connected with the thread segment of gear shift pull bar (13) end；Bearing I is passed through in one end of revolving body (15) it is arranged on casing (23), the other end of revolving body 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 alignment pin；
Described driven gear (17) is engaged with the little gear in duplicate gear (19), and described duplicate gear (19) passes through gear Central shaft (18) is arranged on casing (23) and gear shift end cap (21) centre, the gear wheel in duplicate gear (19) and gear shifting motor master Moving gear (20) engages, and described gear shifting motor driving gear (20) is arranged on gear shifting motor (25), described gear shifting motor (25) it is fixed by screws on casing (23)；
Lower end mounting magnetic steel pallet (16) of driven gear (17), described magnet steel pallet (16) is cylinder, cylinder periphery Several signal magnet steel (26) are uniformly installed；In the casing (23) upper installation Hall support (27) of magnet steel pallet (16) outer rim, Hall Hall element (28) is installed in 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 it is characterised in that：In bearing Disk spring (24) is placed between I (15) and casing (23) dead eye；In bearing II (22) and gear shift end cap (21) bearing nose end Disk spring (24) is placed between face.
3. the electric motor car special gear box with electric gear function according to claim 1 it is characterised 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 it is characterised in that：Described Driven gear (17), duplicate gear (19) and shift motor driving gear (20) are metal powder metallurgy or nonmetallic materials pressure Casting forms.
CN201510051358.1A 2015-01-30 2015-01-30 Special gearbox with electric gear shifting function for electric vehicle Active CN104613139B (en)

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Application Number Priority Date Filing Date Title
CN201510051358.1A CN104613139B (en) 2015-01-30 2015-01-30 Special gearbox with electric gear shifting function for electric vehicle

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

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Families Citing this family (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 (4)

* 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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130109868A (en) * 2012-03-28 2013-10-08 지앤씨 유한회사 Transmission for electric vehicle with submotor for transmission

Patent Citations (4)

* 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
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

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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