CN206802278U - New-energy automobile gearbox transmission shaft lock device - Google Patents
New-energy automobile gearbox transmission shaft lock device Download PDFInfo
- Publication number
- CN206802278U CN206802278U CN201720345282.8U CN201720345282U CN206802278U CN 206802278 U CN206802278 U CN 206802278U CN 201720345282 U CN201720345282 U CN 201720345282U CN 206802278 U CN206802278 U CN 206802278U
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- transmission shaft
- casing
- power transmission
- driving shaft
- new
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Abstract
The utility model discloses a kind of new-energy automobile gearbox transmission shaft lock device, including casing, the first power transmission shaft and the second driving shaft being rotatably supported on the casing, planetary gear train is installed in the casing, the sun gear of the planetary gear train is solidly set on the first power transmission shaft, planet carrier is solidly set on second driving shaft, and gear ring is rotatably supported on second driving shaft by travelling gear；First power transmission shaft is provided with first locking mechanism with casing, second locking mechanism is provided between second driving shaft and gear ring, hydraulic cylinder is installed on the casing, the hydraulic cylinder is connected with the first control member and the second control member, is respectively used in Driven by Hydraulic Cylinder lower-pilot first locking mechanism and second locking mechanism.The utility model is able to ensure that the positive lock to two power transmission shafts in gearbox, to meet gear demand of the double-driving automobile under different operating modes, have it is compact-sized, it is rationally distributed, lubricate the advantages that abundant.
Description
Technical field
Technical field of new energy is the utility model is related to, especially a kind of new-energy automobile jack shaft locking
Device.
Background technology
With the improvement of people's environmental awareness, associated emissions regulation is increasingly harsh, there is the new energy of energy-conserving and environment-protective advantage
Automobile has turned into the important directions of development of automobile industry.
Double-driving automobile refers mainly to oil electricity hybrid vehicle or using pure electric vehicle of two groups of motors as power source, and it is logical
Often need to carry out power coupling using Poewr transmission mechanisms such as planetary gear trains, to meet the transmission needs under different operating modes,
It is often required to export one of which and disconnects, corresponding power transmission shaft is presently mainly locked to realize by clutch or brake.
But because transmission internal structure is complex, it is limited by the structure, in most of gearbox, clutch
Or brake is also required to be installed to wherein on a power transmission shaft, due to locking mechanism and power transmission shaft to be locked be in it is contorted
State, during braking and locking, occur skidding unavoidably, easily cause motor rotation blockage or gear-box beats tooth, influence gearbox
Reliability service, and shorten its service life.
Utility model content
To solve above technical problem, the utility model provides a kind of new-energy automobile gearbox transmission shaft lock device,
The positive lock to power transmission shaft can be ensured, avoid skidding, it is ensured that gearbox stable operation.
To achieve the above object, technical solutions of the utility model are as follows：
A kind of new-energy automobile gearbox transmission shaft lock device, including casing, are rotatably supported on the casing
First power transmission shaft and second driving shaft, planetary gear train is installed in the casing, the sun gear of the planetary gear train is solidly set on first
On power transmission shaft, planet carrier is solidly set on second driving shaft, and gear ring is rotatably supported on second driving shaft by travelling gear；
First power transmission shaft is provided with first locking mechanism with casing, and the second locking is provided between second driving shaft and gear ring
Mechanism, hydraulic cylinder is installed on the casing, the hydraulic cylinder is connected with the first control member and the second control member, is respectively used to
In Driven by Hydraulic Cylinder lower-pilot first locking mechanism and second locking mechanism.
Using above structure, using first locking mechanism and second locking mechanism, the locking system to two power transmission shafts is realized
It is dynamic, due to using Driven by Hydraulic Cylinder, can effectively avoid the skidding in locking process, ensure the reliability service of gearbox.
Preferably, the first locking mechanism includes brake hub and actuator cover, the brake hub is solidly set on the first biography
On moving axis, and multi-disc active friction plate is arranged with, actuator cover is fixed on casing, and is provided with multi-disc driven friction disk, institute
State driven friction disk to set with active friction plate space crossings, the first control member is elastically supported at by (the first back-moving spring
On casing, its one end is connected with hydraulic cylinder, and the other end abuts with driven friction disk.Using above structure, brake hub passes with first
Moving axis synchronous rotary, active friction plate can slide axially along brake hub outer wall, but not produce and rotate against with brake hub, make
Dynamic outer cover is fixed on casing, will not be with drive axis, and driven friction disk is sleeved on actuator cover inwall, can be outer along braking
Cover slides axially, but spacing by circumference, will not produce relative rotation, so, by the first control member of Driven by Hydraulic Cylinder
It need to be contacted with outermost driven friction disk, when hydraulic cylinder works, driven friction disk can be promoted, make itself and active friction plate
It is close to, i.e., is combined actuator cover with brake hub, realizes the locking to the first power transmission shaft.
Preferably, the second locking mechanism includes locking hub, locking outer cover and platen, locking hub is solidly set on sun gear
On, and multi-disc active friction disk is slidably arranged with, locking outer cover is fixed with gear ring, and is slidably mounted with that multi-disc is driven to rub
Disk is wiped, active friction disk and driven friction disk space crossings are set, and platen is elastically supported at locking by second back-moving spring
On outer cover, thrust ball bearing is installed between the platen and the second control member, second locking mechanism operation principle is substantially with
One locking mechanism is identical, and it promotes driven friction disk using platen, realizes locking hub and locks the combination of outer cover, because platen is
On locking outer cover, in the gearbox course of work, platen equally understands concomitant rotation, after thrust ball bearing is set, the
Two control member cans are exerted a force by platen of the thrust ball bearing into rotation, so that knot of the locking hub with locking outer cover
Close, realize the locking to second driving shaft.
Preferably, be provided with two groups of pistons in the hydraulic cylinder, respectively with the first control member and the second control member
It is connected.The structure controls first, second control member respectively using two groups of pistons, can lock the first and second biographies respectively
Moving axis, and will not have an impact each other, ensure reliability service of the gearbox under the various operating modes of automobile.
Preferably, piston described in two groups is radially radially distributed in hydraulic cylinder, to facilitate arrangement, two groups of pistons point
Not Lian Jie pump in a hydraulic system, pump is driven by push-rod electric machine in the hydraulic system, so, piston is controlled in a manner of static pressure
Action, you can the structure such as gerotor pump in not using in a manner of traditional dynamic pressure, simultaneously, it is not necessary to which single oil return oil is set
Road, it is necessary to unlock state when, push-rod electric machine pulls back pump in hydraulic system, living in the presence of corresponding back-moving spring
Plug can self-return, not only simplify structure, while also reduce the pressure loss, further increase system reliability.
Preferably, first power transmission shaft and second driving shaft face are set, the first end part of driving shaft is rotationally embedding
Enter second driving shaft one end, and supported by needle bearing, so, realizing that the first power transmission shaft and second driving shaft can be relative
While rotation, secure support of the associated components on two power transmission shafts is ensure that, to ensure stabilization of the gearbox under each operating mode
Operation.
For convenience of the lubrication of each motion of transmission internal, the end sleeve that the second driving shaft passes casing is provided with oil
Pump driver gear, grease pump is provided with cabinet exterior, and second driving shaft can be driven when rotating by oil pump drive gear
Grease pump is run, and the structure can utilize second driving shaft itself rotary power to drive grease pump work.
To make gearbox compact overall structure, oil pump outer cover is installed on the outside of the oil pump drive gear and grease pump,
The oil pump outer cover is fixed with casing.
Beneficial effect：
Using the new-energy automobile gearbox transmission shaft lock device of above technical scheme, it can be ensured that in gearbox two
The positive lock of power transmission shaft, to meet gear demand of the double-driving automobile under different operating modes, there is compact-sized, layout
Rationally, the advantages that abundant is lubricated.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of planetary gear train in the utility model；
Fig. 3 is the structural representation of first locking mechanism in the utility model；
Fig. 4 is the structural representation of second locking mechanism in the utility model；
Fig. 5 is the mounting structure schematic diagram of hydraulic cylinder in the utility model；
Fig. 6 is the structural representation of hydraulic cylinder in the utility model.
Embodiment
The utility model is described in further detail with accompanying drawing with reference to embodiments.
As shown in figure 1, a kind of new-energy automobile gearbox transmission shaft lock device, including casing 1 and pass through bearing respectively
The first power transmission shaft 2 and the second driving shaft 3 being rotatably supported on the casing 1, casing 1 are fastened by left and right two parts and formed,
First power transmission shaft 2 and second driving shaft 3 are horizontally mounted on casing 1, and coaxial face is set, the left end end of the first power transmission shaft 2
In portion's insertion right-hand member respective slot of second driving shaft 3, and it is supported on by needle bearing 21 in the groove.
The left end of second driving shaft 3 passes casing left end face rear enclosure and is provided with oil pump drive gear 22, in the left side outer wall of casing 1
On grease pump 23 is installed, oil pump drive gear 22 engages with the driving gear of grease pump 23, in the first power transmission shaft 2 and
Two power transmission shafts 3 are provided with corresponding oil circuit, when second driving shaft 3 rotates, grease pump 23 can be driven to work, so as to be casing
Associated friction is secondary on first power transmission shaft 2 and second driving shaft 3 in 1 provides lubrication, meanwhile, pass through bolt in the left side outer end of casing 1
Oil pump outer cover 24 is fixed with, to block oil pump drive gear 22 and the grade part of grease pump 23, while lubricating system is carried out close
Envelope, is provided with planetary gear train 4 inside casing 1.
Fig. 2 shows the concrete structure of planetary gear train 4, and it includes sun gear 41, planet carrier 42 and gear ring 43, planet carrier 42
On planetary gear 42a is installed, engaged respectively with the sun gear 41 of inner side and the gear ring 43 in outside, sun gear 41 be arranged on first
The left end of power transmission shaft 2, is connected with the first power transmission shaft 2 by spline or directly interference is fitted on the first power transmission shaft 2, and planet carrier 42 is solid
It is enclosed on the right-hand member of second driving shaft 3.
Travelling gear 44 is provided with by bearing holder (housing, cover) on second driving shaft 3, makes travelling gear 44 can be with the phase of second driving shaft 3
To rotating, gear ring 43 is bolted on travelling gear 44, i.e., gear ring 43 can produce relative turn with second driving shaft 3
It is dynamic.
The first locking mechanism 5 for being used for locking the first power transmission shaft 2 is provided between the first power transmission shaft 2 and casing 1, second passes
The second locking mechanism 6 for being used for locking second driving shaft 3 is provided between moving axis 3 and gear ring 43, is fixed with the outer right wall of casing 1
Hydraulic cylinder 7, and it is connected with the first control member 51 for being respectively used to manipulate first locking mechanism 5 and second locking mechanism 6 and the
Two control members 61.
Fig. 3 is referred to, first locking mechanism 5 includes the brake hub 52 being solidly set on the first power transmission shaft 2 and fixed with casing 1
Actuator cover 53, brake hub 52 and actuator cover 53 be coaxially disposed, the active friction being arranged with brake hub 52 more than two panels
Piece 54, have on the outer wall of brake hub 52 along its axially arranged chute, active friction plate 54 and be embedded in the chute, can make
Slid axially on dynamic hub 52 along it, but because the limitation of chute will not produce relative rotation.
Actuator cover 53 is bolted on casing 1, and its inwall is provided with along its axially extending groove 53a, and
Two panels or more driven friction disk 55 is arranged with, driven friction disk 55 is partially submerged into groove 53a, with the class of active friction plate 54
Seemingly, it can slide axially along the inwall of actuator cover 53, but not be produced relative rotation with actuator cover 53, driven friction disk 55
It is spaced with active friction plate 54 and checks setting, i.e., the peripheral edge portion of every driven friction disk 55 is embedded in adjacent two panels drag friction
In gap between piece 54, the baffle plate 57 fixed with actuator cover 53 is installed in groove 53a left end, to driven friction disk 55
Sliding stroke carry out it is spacing.
First control member 51 structure substantially in the form of annular discs, the (the first back-moving spring 56 being distributed by multiple circular arrays
It is supported on casing 1, the one end of (the first back-moving spring 56 is connected to the baffle ring 1a for being solidly set on 1 inwardly projecting part of casing, the other end
On the inwall projected radially inwards with the right-hand member of the first control member 51.
The left end of first control member 51 is contacted and pushed against with the driven friction disk 55 of the rightmost side, when hydraulic cylinder 7 promotes first
When control member 51 overcomes the elastic force of (the first back-moving spring 56 to left movement, driven friction disk 55 can be promoted sliding in groove 53a
It is dynamic, so that driven friction disk 55 and active friction plate 54 are close to, brake hub 52 and actuator cover 53 are combined using friction, from
And realize the locking to the first power transmission shaft 2.
As shown in figure 4, second locking mechanism 6 mainly includes locking hub 62, locking outer cover 63 and platen 64, wherein, locking
Hub 62 is solidly set on spline or interference fit on the hub portion 41a that sun gear 41 axially extends, on locking hub 62
It is arranged with the active friction disk 65 of 4 sheets in a ring.
It is substantially in circular ring to lock outer cover 63, can be fixed by the mode and gear ring 43 such as welding, being threadedly coupled,
Directly it can be integrally formed with gear ring 43, along gear ring 43, axially into figure, right side extends for it, and 4 are slidably arranged with its inwall
Piece driven friction disk 66, similar with first locking mechanism 5, driven friction disk 66 is set with 65 same space crossings of active friction disk
Put, be able to slide axially along locking hub 62 and locking outer cover 63, but by circumferential spacing, will not produce relative rotation.
Platen 64 is substantially in hollow disc-shaped structure, its second back-moving spring 67 being distributed by multiple circular arrays
Be supported on locking outer cover 63 on, the left end of second back-moving spring 67 be connected to along locking outer cover 63 it is radially inwardly projecting and with locking
On the spacing block plate 63a that outer cover 63 is fixed, right-hand member abuts with the right-hand member inwall of platen 64.
The second control member 61 is connected between hydraulic cylinder 7 and platen 64, between the second control member 61 and platen 64
Thrust ball bearing 68 is installed, makes to produce relative rotation between the second control member 61 and platen 64, meanwhile, work as hydraulic cylinder
7 when promoting the first control members 61 to left movement, and platen 64 can be promoted to overcome the elastic force of second back-moving spring 67 to left movement, from
And will lock outer cover 63 with active friction disk 65 using driven friction disk 66 and combined with locking hub 62, realize to second driving shaft 3
Locking.
Hydraulic cylinder 7 is can be seen that with reference to Fig. 5 and Fig. 6 and is generally cylindrical structure, and middle part is provided with axis hole 7a, in the hydraulic pressure
Radially it is distributed with piston installation cavity 7b on cylinder 7, in the present embodiment, piston installation cavity 7b is two groups altogether, every group 4, every
In individual piston installation cavity 7b each installation one can in piston installation cavity 7b reciprocating piston 71, in order to ensure hydraulic pressure
The reliable sealing of cylinder 7, twice superhigh pressure sealing ring 7c is installed in piston installation cavity 7b.
1 group of piston 71 close to radially inner side is fixed with the right-hand member of the first control member 51, the right-hand member end of the second control member 61
Portion is fixed on hydraulic cylinder 7 on one group of piston 71 of radial outside, to control first locking mechanism 5 and second to lock respectively
Mechanism 6 moves.
Two groups of piston installation cavity 7b are respectively connected with pump 72 in a hydraulic system, are different from by separate pipeline
Conventional rotors formula or plunger oil pump, pump 72 includes oil cylinder 72a and is slidingly engaged in pushing away in oil cylinder 72a in the hydraulic system
Block 72b, pushing block 72b outer end are connected with push-rod electric machine 73, can be with when push-rod electric machine 73 promotes the pushing block 72b to be slided in oil cylinder 72a
Piston installation cavity 7b oil pressure is set to produce change, so as to promote piston 71 to move, to drive the first control member 51 or second to manipulate
Part 61 moves.
The first power transmission shaft 2 and second driving shaft 3 can be entered respectively using first locking mechanism 5 and second locking mechanism 6
Row locking braking, change the motion state of planetary gear train 4, to realize powershift and coupling under double-driving automobile difference operating mode
Close.
Finally it should be noted that foregoing description is only preferred embodiment of the present utility model, the common skill of this area
Art personnel on the premise of without prejudice to the utility model aims and claim, can make under enlightenment of the present utility model
Expression, such conversion are each fallen within the scope of protection of the utility model as multiple types.
Claims (8)
1. a kind of new-energy automobile gearbox transmission shaft lock device, including casing (1), it is rotatably supported at the casing (1)
On the first power transmission shaft (2) and second driving shaft (3), it is characterised in that：Planetary gear train (4) is installed in the casing (1), should
The sun gear (41) of planetary gear train (4) is solidly set on the first power transmission shaft (2), and planet carrier (42) is solidly set on second driving shaft (3),
Gear ring (43) is rotatably supported on second driving shaft (3) by travelling gear (44)；
First power transmission shaft (2) is provided with first locking mechanism (5) with casing (1), between second driving shaft (3) and gear ring (43)
Provided with second locking mechanism (6), hydraulic cylinder (7) is installed on the casing (1), the hydraulic cylinder (7) is connected with the first manoeuvre portion
Part (51) and the second control member (61), it is respectively used in hydraulic cylinder (7) driving lower-pilot first locking mechanism (5) and the second lock
Determine mechanism (6).
2. new-energy automobile gearbox transmission shaft lock device according to claim 1, it is characterised in that：First lock
Determining mechanism (5) includes brake hub (52) and actuator cover (53), and the brake hub (52) is solidly set on the first power transmission shaft (2), and
Multi-disc active friction plate (54) is arranged with, actuator cover (53) is fixed on casing (1), and is provided with multi-disc driven friction disk
(55), the driven friction disk (55) is set with active friction plate (54) space crossings, and the first control member (51) passes through first
Back-moving spring (56) is elastically supported on casing (1), and its one end is connected with hydraulic cylinder (7), the other end and driven friction disk
(55) abut.
3. new-energy automobile gearbox transmission shaft lock device according to claim 2, it is characterised in that：Second lock
Determining mechanism (6) includes locking hub (62), locking outer cover (63) and platen (64), and locking hub (62) is solidly set on sun gear (41),
And multi-disc active friction disk (65) is slidably arranged with, locking outer cover (63) is fixed with gear ring (43), and is slidably mounted with
Multi-disc driven friction disk (66), active friction disk (65) and driven friction disk (66) space crossings are set, and platen (64) passes through the
Two back-moving springs (67) are elastically supported on locking outer cover (63), and one end abuts with driven friction disk (66), the platen (64)
Thrust ball bearing (68) is installed between the second control member (61).
4. the new-energy automobile gearbox transmission shaft lock device according to claim 1 or 2 or 3, it is characterised in that：It is described
Two groups of pistons (71) are installed in hydraulic cylinder (7), are connected respectively with the first control member (51) and the second control member (61) solid
It is fixed.
5. new-energy automobile gearbox transmission shaft lock device according to claim 4, it is characterised in that：It is living described in two groups
Plug (71) is radially radially distributed in hydraulic cylinder (7), and connects pump (72) in a hydraulic system, the hydraulic system respectively
Upper pump (72) is driven by push-rod electric machine (73).
6. the new-energy automobile gearbox transmission shaft lock device according to claim 1 or 2 or 3, it is characterised in that：It is described
First power transmission shaft (2) and second driving shaft (3) face are set, and the first power transmission shaft (2) end is rotationally embedded in second driving shaft
(3) one end, and supported by needle bearing (21).
7. new-energy automobile gearbox transmission shaft lock device according to claim 6, it is characterised in that：Described second passes
The end sleeve that moving axis (3) passes casing (1) is provided with oil pump drive gear (22), and grease pump is provided with casing (1) outer wall
(23) by oil pump drive gear (22) grease pump (23) can be driven to run when, second driving shaft (3) rotates.
8. new-energy automobile gearbox transmission shaft lock device according to claim 7, it is characterised in that：The oil pump drives
Oil pump outer cover (24) is installed on the outside of moving gear (22) and grease pump (23), the oil pump outer cover (24) is fixed with casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720345282.8U CN206802278U (en) | 2017-04-01 | 2017-04-01 | New-energy automobile gearbox transmission shaft lock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720345282.8U CN206802278U (en) | 2017-04-01 | 2017-04-01 | New-energy automobile gearbox transmission shaft lock device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802278U true CN206802278U (en) | 2017-12-26 |
Family
ID=60731615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720345282.8U Expired - Fee Related CN206802278U (en) | 2017-04-01 | 2017-04-01 | New-energy automobile gearbox transmission shaft lock device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265429A (en) * | 2020-10-26 | 2021-01-26 | 王凤艳 | Mounting and fixing device for PTC heater of new energy automobile and using method of mounting and fixing device |
-
2017
- 2017-04-01 CN CN201720345282.8U patent/CN206802278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265429A (en) * | 2020-10-26 | 2021-01-26 | 王凤艳 | Mounting and fixing device for PTC heater of new energy automobile and using method of mounting and fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180401 |