CN208237065U - A kind of electric-controlled mechanical automatic gearshift - Google Patents
A kind of electric-controlled mechanical automatic gearshift Download PDFInfo
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- CN208237065U CN208237065U CN201820157345.1U CN201820157345U CN208237065U CN 208237065 U CN208237065 U CN 208237065U CN 201820157345 U CN201820157345 U CN 201820157345U CN 208237065 U CN208237065 U CN 208237065U
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Abstract
The utility model relates to a kind of electric-controlled mechanical automatic gearshifts (AMT), belong to the speed Control field of motor vehicle.Automatic gearshift in the prior art, gear shifting signal are the rotations by means of shifting shaft and secondhand, and there may be deviations for the practical shift position that sensor signal obtained and shift refer to.The electric-controlled mechanical automatic gearshift of the utility model includes the first gearshift and the second gearshift, wherein each gearshift includes shift motor (11,16), shift lead screw pair (4,3), shifting gears refers to (9,8), gearshift position sensor (6,1) and shifting shaft (7).Each gearshift further includes gear shift sensing axis (5,2), and the shifting shaft (7) immovably supports shift and refers to that (9,8) rotate around it.Feed screw nut drives shift to refer to that (9,8) and gear shift sensing axis (5,2) rotate synchronously simultaneously.Gear shift sensing axis is connected with gearshift position sensor.
Description
Technical field
The present invention relates to automotive fields, specifically, are related to the electric-controlled mechanical automatic gearshift (AMT) of motor vehicle.
Background technique
AMT is the abbreviation of Automated Mechanical Transmission, i.e. electric control mechanical type automatic speed variator,
Or electric-controlled mechanical automatic gearshift.
Electric control mechanical type automatic speed variator is improved on the basis of traditional hand gear type speed changer, it is merged
AT(is automatic) and MT(it is manual) both the advantages of, be a kind of automatic transmission of mechanical-electrical-hydraulic integration.AMT both has liquid
The advantages of power automatic transmission fluid drive, and remain that former manual transmission gear-driven efficiency is high, at low cost, structure is simple
The strong points such as single, easy manufacture, are a kind of automatic transmission for being very suitable to China's national situation.
Its working principle is that in the case where overall drive mechanism is constant by installing micro-processor controlled automatic handling system additional
To realize the automation of gear shift.
It is disclosed in CN 106051137A application for a patent for invention a kind of using electric-controlled mechanical automatic gearshift
Four-speed gear shift device, electric-controlled mechanical automatic gearshift therein are as shown in Figure 1.
Two motors are provided in the gearshift, the shift operation that they respectively keep off one, second gear and three, four carries out
Control.Using the mechanism, the operating process of original block selecting is eliminated, is conducive to the accuracy and stability that improve shift.
In above-mentioned gearshift, drive feed screw nut mobile by motor and the lead screw being connected to the motor, and by means of
One U-type groove drives shift to refer to rotation, and the rotation referred to via the shift drives shifting shaft to rotate again.In this configuration, shift refer to
Shifting shaft is opposing stationary.Shifting shaft is rotated, the angle rotated via shifting shaft by the driving that shift refers in operating process
Signal sends sensor to, to realize the control referred to shift.
In order to realize shifting shaft and the synchronous rotation referred to of shifting gears, the fit system that shifting shaft and shift refer in the prior art is such as
Shown in Fig. 2, shifting shaft is square shaft, the centre bore referred to of shifting gears is square hole.
The major defect of above structure is that structure is complex, processing cost is higher.Further, since its gear shifting signal is to borrow
Help the rotation of shifting shaft and secondhand, among it by primary conversion, not arises directly from feed screw nut, therefore sense
There may be deviations for the practical shift position that device signal obtained and shift refer to.
Summary of the invention
For the problems of prior art, the present invention provides a kind of electric-controlled mechanical automatic gearshift, mesh
Be to further realize simplifying the structure for the automatic gearshift, and thus reduce processing cost.It further increases and changes simultaneously
The accuracy and stability of shelves operation.
To achieve the above object, the present invention provides a kind of electric-controlled mechanical automatic gearshift, which includes:
First gearshift and the second gearshift, wherein each gearshift includes shift motor, shift lead screw
Secondary, shift refers to, gearshift position sensor and shifting shaft.Each gearshift further includes gear shift sensing axis, the shift
Axis, which immovably supports shift and refers to, to be rotated around it.
In one embodiment of the invention, the two sides of feed screw nut are equipped with protruding shaft in each shift lead screw pair, they
Referred to respectively by U-type groove with shift and gear shift sensing axis is connected, and them is driven to rotate synchronously, gear shift sensing axis and shift position
It sets sensor to be connected, its angular displacement signal is passed into gearshift position sensor.
In another embodiment of the present invention, the bottom or two sides of feed screw nut are equipped with tooth in each shift lead screw pair
Item, which refers to shift and the gear in gear shift sensing shaft end portion is meshed, and drives shift to refer to and gear shift sensing axis rotates, shift
Its angular displacement signal is passed to gearshift position sensor by sensing shaft.
To realize superior technique effect, in a preferred technical solution of the invention, the screw rod is ball-screw
Structure, both ends are equipped with needle roller thrust bearing, to improve lead screw traveling comfort.
Using the technical solution of the present invention, electric-controlled mechanical automatic gearshift can be made to be simplified, structure is more
Adduction reason, and thus reduce manufacturing cost；Directly drive that shift refers to and gear shift sensing device axis is rotated synchronously by feed screw nut, it can be with
Sensor position signal obtained is set to arise directly from feed screw nut, the physical location referred to shift more matches, and facilitates
Improve the reliability of gear shifting signal and the stability of shift.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of electric-controlled mechanical automatic gearshift in the prior art；
Attached drawing 2 is the structural schematic diagram that a kind of shift refers to shifting shaft cooperation in the prior art；
Attached drawing 3 is that the master of one embodiment of electric-controlled mechanical automatic gearshift of the present invention cuts open structural schematic diagram；
Attached drawing 4 is one in embodiment illustrated in fig. 3, the cross-sectional view of second gear gear shifting structure；
Attached drawing 5 is the top view of electric-controlled mechanical automatic gearshift of the present invention；
Attached drawing 6 is the gear shifting structure schematic diagram of embodiment described in Fig. 3；
Attached drawing 7 is the gear shifting structure schematic diagram of another embodiment of electric-controlled mechanical automatic gearshift of the present invention.
The corresponding relationship of parts title and label in attached drawing is:
The second gearshift position sensor of 1-, 2- the second gear shift sensing axis, the shift lead screw pair of 3- second, the shift lead screw of 4- first
Pair, 5- the first gear shift sensing axis, the first gearshift position sensor of 6-, 7- shifting shaft, the shift of 8- second refer to that 9- first gear is shifted gears
Refer to, 10- top cover, 11- first gear shift motor, the left needle roller thrust bearing of 12-, 13- shell, the right needle roller thrust bearing of 14-, 15-
Lead screw bushing, the second shift motor of 16-.
Specific embodiment
As described above, gear shifting signal in the prior art is to pass to gearshift position sensor by means of the rotation of shifting shaft
, there may be with the rotation that refers to of shift for transmitted signal is inconsistent, and its structure is complex, processing cost compared with
It is high.The rotation of shifting shaft is changed to fixed by the present invention, directly drives shifting shaft by feed screw nut, and then will by shifting shaft
Angular displacement position signal passes to sensor.
Below in conjunction with Figure of description, elaborated by two specific embodiments to technical solution of the present invention.
Embodiment one
Electric-controlled mechanical automatic gearshift of the invention includes the first gearshift and the second gearshift, the knot of the two
Structure is essentially identical.First gearshift is used to complete the shift operation of one, second gear, and the second gearshift is for completing three, four gears
Shift operation.
As shown in Figures 3 and 4, the first gearshift include first gear shift motor 11, first shift gears lead screw pair 4, first change
Gear position sensor 6, first gear shift refer to the 9, first gear shift sensing axis 5 and the first shifting shaft 7.
Second gearshift includes the second shift motor 16, second shift lead screw pair 3, the second gearshift position sensor 1, the
Two shifts refer to the 8, second gear shift sensing axis 2 and the second shifting shaft (not shown).
In this embodiment, shift is converted by the translation of feed screw nut using U-type groove structure to refer to and gear shift sensing axis
Rotation.
Below by taking the first gearshift as an example, the structure and its matching relationship of gearshift of the present invention are illustrated.
Under control of the control system, the first shift motor 11 directly drives the movement of the first shift lead screw pair 4, the first shift
Feed screw nut in lead screw pair 4 is moved left and right along lead screw, and the protruding shaft of two sides passes through a setting respectively and refers to 9 and the in the first shift
The U-type groove of one gear shift sensing axis, 5 end is connected, and drives its synchronous rotation.
Wherein, first gear shift refers to that 9 are rotatably mounted on fixed first shifting shaft 7.First changes
Gear sensing shaft 5 is connected with the first gearshift position sensor 6 being arranged on lead screw, by the angular displacement of the first gear shift sensing axis 5
Signal passes to the first gearshift position sensor 6.The information that control system is provided according to the first gearshift position sensor 6 is to shift
Operation is controlled.
In order to improve the stability and reliability of shift operation, the lead screw can use ball screw arrangement, shift
The both ends of lead screw pair 4 can carry its axial force using needle roller thrust 12,15 bearings.
As shown in figure 3, shift refer to that 9 are supported on round shifting shaft 7 by a round hole, shift refer to 9 and shifting shaft 7 it
Between be clearance fit.
Embodiment two
The embodiment the difference is that only with embodiment one:
In driving mechanism of the feed screw nut to shifting shaft and gear shift sensing axis, matching for feed screw nut and U-type groove is eliminated
It closes, and the instead cooperation of gear-tooth item.
As shown in fig. 7, being equipped with rack gear in the bottom of each feed screw nut, which refers to 9,8 and shift with shift simultaneously
Sensing shaft 5,2 ends gear be meshed.The movement of feed screw nut will drive shift to refer to 9,8 and the rotation of gear shift sensing axis 5,2, change
It keeps off sensing shaft 5,2 and its angular displacement signal is passed into gearshift position sensor 6,1.
The lower section of feed screw nut is arranged in rack gear shown in Fig. 7, it is of course also possible to be disposed at the two of feed screw nut
Side, can equally drive shift refer to and gear shift sensing axis rotate synchronously.
Other contents being the same as example 1 repeat no more.
Gearshift of the invention is illustrated by way of examples above.Although should be noted that above-mentioned
It is driven in the same way that shift in embodiment, which refers to gear shift sensing axis, but can also be carried out in different ways
Driving.Such as referred to U-type groove driving shift, and with gear-rack drive gear shift sensing axis, vice versa.
It will be apparent that those skilled in the art are known other than using the fit system of protruding shaft-U-type groove and gear-tooth item
The other machinery kind of drive can be used for the gearshift.
Claims (4)
1. a kind of electric-controlled mechanical automatic gearshift, including the first gearshift and the second gearshift, wherein each is changed
Retaining device all includes: shift motor (11,16), shift lead screw pair (4,3), shifting gears refers to (9,8), gearshift position sensor (6,1),
And shifting shaft (7), it is characterised in that:
Each gearshift further includes gear shift sensing axis (5,2), and the shifting shaft (7) immovably supports shift and refers to
(9,8) rotate around it.
2. automatic gearshift as described in claim 1, it is characterised in that:
The two sides of feed screw nut are respectively equipped with protruding shaft in each shift lead screw pair (4,3), they pass through U-type groove and shift respectively
Refer to that (9,8) and gear shift sensing axis (5,2) are connected, and them is driven to rotate synchronously, gear shift sensing axis (5,2) and drive range pass
Sensor (6,1) is connected, its angular displacement signal is directly passed to gearshift position sensor (6,1).
3. automatic gearshift as described in claim 1, it is characterised in that:
The bottom or two sides of feed screw nut are equipped with rack gear in each shift lead screw pair (4,3), the rack gear and shift refer to (9,8) and
The gear of gear shift sensing axis (5,2) end is meshed, and shift is driven to refer to (9,8) and gear shift sensing axis (5,2) rotation, gear shift sensing
Its angular displacement signal is directly passed to gearshift position sensor (6,1) by axis (5,2).
4. the automatic gearshift as described in claim 1-3 any claim, it is characterised in that: each described shift
Lead screw pair (4,3) is ball screw arrangement, and both ends are equipped with needle roller thrust bearing (12,14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820157345.1U CN208237065U (en) | 2018-01-30 | 2018-01-30 | A kind of electric-controlled mechanical automatic gearshift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820157345.1U CN208237065U (en) | 2018-01-30 | 2018-01-30 | A kind of electric-controlled mechanical automatic gearshift |
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| Publication Number | Publication Date |
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| CN208237065U true CN208237065U (en) | 2018-12-14 |
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| CN201820157345.1U Active CN208237065U (en) | 2018-01-30 | 2018-01-30 | A kind of electric-controlled mechanical automatic gearshift |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194628A (en) * | 2018-01-30 | 2018-06-22 | 北京理工华创电动车技术有限公司 | A kind of electric-controlled mechanical automatic gearshift |
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2018
- 2018-01-30 CN CN201820157345.1U patent/CN208237065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194628A (en) * | 2018-01-30 | 2018-06-22 | 北京理工华创电动车技术有限公司 | A kind of electric-controlled mechanical automatic gearshift |
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