CN205469257U - Drive sprocket feed subassembly and electronic power assisted steering machine of electronic power assisted steering machine - Google Patents
Drive sprocket feed subassembly and electronic power assisted steering machine of electronic power assisted steering machine Download PDFInfo
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- CN205469257U CN205469257U CN201620290382.0U CN201620290382U CN205469257U CN 205469257 U CN205469257 U CN 205469257U CN 201620290382 U CN201620290382 U CN 201620290382U CN 205469257 U CN205469257 U CN 205469257U
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- movable teeth
- castor
- drivewheel
- chain
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Abstract
The utility model discloses a drive the sprocket feed subassembly of electronic power assisted steering machine, include first motor, action wheel, follow driving wheel and chain, first motor is used for driving the action wheel rotates, the action wheel passes through the chain drives driven round of rotation, the sprocket feed subassembly still includes a plurality of movable gear and a plurality of the 2nd movable gear, it is a plurality of a movable gear interval arrangement is in on the terminal surface of action wheel, and can follow the radial of action wheel makes a round trip to slide, it is a plurality of the 2nd movable gear interval arrangement is in from the terminal surface of driving wheel, and can follow make a round trip to slide from the radial of driving wheel, the chain cover is established a movable gear with outside the 2nd movable gear, and with a movable gear with the meshing of the 2nd movable gear. The utility model discloses still disclose an electronic power assisted steering machine. The utility model discloses can realize the infinitely variable control to transmission rate, output torque and the exit velocity of sprocket feed subassembly.
Description
Technical field
This utility model relates to the technical field of electric power steering machine, particularly relates to a kind of driving electric power steering machine
Chain gear transmission assembly and electric power steering machine.
Background technology
As it is shown in figure 1, the chain gear transmission assembly of existing driving electric power steering machine generally includes drivewheel 1 ', driven
Wheel 2 ' and belt 3 '.Motor (not shown) drives drivewheel 1 ' to rotate, and drivewheel 1 ' drives driven pulley 2 ' to rotate by belt 3 ',
Driven pulley 2 ' delivers power to tooth bar (not shown) again.The transmission ratio of this chain gear transmission assembly is typically invariable.Main
The transmission ratio of driving wheel and driven pulley is fixing, and output torque and speed only rely on the power of motor and changes.
Therefore, it is necessary to design a kind of can regulate transmission ratio drive electric power steering machine chain gear transmission assembly and
Electric power steering machine.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of driving electricity that can regulate transmission ratio
The chain gear transmission assembly of dynamic power-assisted steering machine and electric power steering machine.
This utility model provides a kind of chain gear transmission assembly driving electric power steering machine, including the first motor, actively
Wheel, driven pulley and chain, described first motor is used for driving described drivewheel to rotate, and described drivewheel is carried by described chain
Dynamic described driven pulley rotates,
Described chain gear transmission assembly also includes multiple first movable teeth and multiple second movable teeth；
Multiple described first movable teeth intervals are arranged on the end face of described drivewheel, and can be along the footpath of described drivewheel
To slidably reciprocating；
Multiple described second movable teeth intervals are arranged on the end face of described driven pulley, and can be along described driven pulley
Radially slidably reciprocate；
Described chain is set in outside described first movable teeth and described second movable teeth, and with described first movable teeth and institute
State the second movable teeth engagement.
Further, described chain is provided with multiple groove, described first movable teeth and the outer end of described second movable teeth
Face is provided with multiple and described engagement projection.
Further, described chain is provided with multiple tooth, described first movable teeth and the outer face of described second movable teeth
It is provided with the groove that multiple and described tooth engages.
Further, described chain gear transmission assembly also includes the first castor and the second castor；
Described first castor is coaxially connected with described drivewheel, and multiple described first movable teeths are disposed on described
Between one castor and described drivewheel；
Described second castor is coaxially connected with described driven pulley, and multiple described second movable teeths are disposed on described
Between two castors and described driven pulley；
Described first castor can be axially displaced to promote described first movable teeth to be moved radially outwards when rotating,
Described second castor can be axially displaced to promote described second movable teeth to be moved radially outwards when rotating.
Further, described chain gear transmission assembly also includes that the second motor, described second motor simultaneously drive described first
Castor and described second castor synchronize to be axially moveable.
Further, described first movable teeth and described second movable teeth are wedge structure, on described first movable teeth with
Two sides of described first castor and the laminating of described drivewheel are inclined-plane, movable with described second on described second movable teeth
Two sides of wheel and the laminating of described driven pulley are inclined-plane, and the outer face of described first movable teeth and described second movable teeth is relatively
Width, inner face is narrower.
This utility model also provides for a kind of electric power steering machine, including turning to machine body, tooth bar and chain gear transmission assembly,
Described chain gear transmission assembly includes that the first motor, drivewheel, driven pulley and chain, described first motor are used for driving described active
Wheel rotates, and described drivewheel drives described driven pulley to rotate by described chain, and described driven pulley drives described racks turn,
Described tooth bar turns to machine body described in being used for driving.
Described chain gear transmission assembly also includes multiple first movable teeth and multiple second movable teeth；
Multiple described first movable teeth intervals are arranged on the end face of described drivewheel, and can be along the footpath of described drivewheel
To slidably reciprocating；
Multiple described second movable teeth intervals are arranged on the end face of described driven pulley, and can be along the footpath of described driven pulley
To slidably reciprocating；
Described chain is set in outside described first movable teeth and described second movable teeth, and with described first movable teeth and institute
State the second movable teeth engagement.
Further, described chain is provided with multiple groove, described first movable teeth and described second movable teeth and is provided with
Multiple projections with described engagement.
Further, described chain is provided with multiple tooth, described first movable teeth and the outer surface of described second movable teeth
It is provided with the groove that multiple and described tooth engages.
Further, described chain gear transmission assembly also includes the first castor and the second castor；
Described first castor is coaxially connected with described drivewheel, and multiple described first movable teeths are disposed on described
Between one castor and described drivewheel；
Described second castor is coaxially connected with described driven pulley, and multiple described second movable teeths are disposed on described
Between two castors and described driven pulley；
Described first castor can be axially displaced to promote described first movable teeth to be moved radially outwards when rotating,
Described second castor can be axially displaced to promote described second movable teeth to be moved radially outwards when rotating.
Further, described chain gear transmission assembly also includes that the second motor, described second motor simultaneously drive described first
Castor and described second castor synchronize to be axially moveable.
Further, described first movable teeth and described second movable teeth are wedge structure, on described first movable teeth with
Two sides of described first castor and the laminating of described drivewheel are inclined-plane, movable with described second on described second movable teeth
Two sides of wheel and the laminating of described driven pulley are inclined-plane, and the outer face of described first movable teeth and described second movable teeth is relatively
Width, inner face is narrower.
After using technique scheme, have the advantages that
Owing to adding the first movable teeth and the second movable teeth, chain is set in outside the first movable teeth and the second movable teeth,
And the first movable teeth can slidably reciprocate along the radial direction of drivewheel, the second movable teeth can be slided back and forth along the radial direction of driven pulley
Dynamic.When needing the transmission ratio regulating chain gear transmission assembly, by regulating the first movable teeth and the second movable teeth respectively actively
Position on wheel and driven pulley, it is possible to achieve the stepless speed regulation of chain gear transmission assembly.It addition, this utility model disclosure satisfy that difference
The demand of vehicle, it is not necessary to redesign motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the chain gear transmission assembly of existing driving electric power steering machine；
Fig. 2 is the axonometric chart of electric power steering machine in this utility model one embodiment；
Fig. 3 is the partial enlarged drawing of Fig. 2；
Fig. 4 is the profile in Fig. 3 at the first movable teeth and the second movable teeth.
Reference synopsis:
1 '-drivewheel, 2 '-driven pulley, 3 '-belt
1-the first motor 2-drivewheel 3-driven pulley
4-chain 5-the second motor 6-tooth bar
21-the first movable teeth 22-the first castor 31-the second movable teeth
32-the second castor 41-tooth
Detailed description of the invention
Further illustrate detailed description of the invention of the present utility model below in conjunction with the accompanying drawings.
As in Figure 2-4, electric power steering machine includes turning to machine body (not shown), tooth bar 6 and chain gear transmission assembly,
Chain gear transmission assembly includes that the first motor 1, drivewheel 2, driven pulley 3 and chain 4, the first motor 1 are used for driving 2 turns of drivewheel
Dynamic, drivewheel 2 drives driven pulley 3 to rotate by chain 4, and driven pulley 3 band carry-over bar 6 rotates, and tooth bar 6 is before driving automobile
Wheel rotates, and chain gear transmission assembly also includes that multiple first movable teeth 21 (seeing Fig. 4) and multiple second movable teeth 31 (see figure
4)；First movable teeth 21 interval is arranged on the end face of drivewheel 2, and can slidably reciprocate along the radial direction of drivewheel 2；Multiple
Two movable teeth 31 intervals are arranged on the end face of driven pulley 3, and can slidably reciprocate along the radial direction of driven pulley 3；Chain 4 is set in
Outside first movable teeth 21 and the second movable teeth 31, and engage with the first movable teeth 21 and the second movable teeth 31.
Wherein, as it is shown on figure 3, different from existing chain gear transmission assembly, chain 4 is not directly to be set in drivewheel 2 He
On driven pulley 3, but it is set on multiple spaced apart first movable teeth 21 and the second movable teeth 31.
As shown in Figure 4, in the present embodiment, 9 the first movable teeth 21 radially uniform intervals are arranged in drivewheel 2
On end face, forming a less annular, the center of 9 the first movable teeths 21 is with the center of circle of drivewheel 2 on the same axis.
Tooth engagement on the sprocket of chain 4 and the outer face of the first movable teeth 21, the first movable teeth 21 turns along with the rotation of drivewheel 2
Dynamic so that the first movable teeth 21 can drive chain 4 transmission.
In like manner, 9 the second movable teeth 31 radially uniform intervals are arranged on the end face of driven pulley 3, form one relatively
Big annular, the center of 9 the second movable teeths 31 is with the center of circle of driven pulley 3 on the same axis.9 the second movable teeths 31 are equal
Even interval is arranged on the end face of driven pulley 3, the tooth engagement on the sprocket of chain 4 and the outer face of the second movable teeth 31, and second
Movable teeth 31 drives driven pulley 3 to rotate, and when chain 4 transmission, chain 4 drives the second movable teeth 31 to rotate, the second movable teeth 31
Driven pulley 3 is driven to rotate again.
As it is shown on figure 3, multiple first movable teeths 21 and multiple second movable teeth 31 are in the same plane.In other words,
One movable teeth 21 and the second movable teeth 31 are centrally located on same plane, and the centrage of chain 4 also is located in this plane so that
Chain 4 can be set on the outer face of the first movable teeth 21 and the second movable teeth 31 simultaneously, it is achieved transmission.
Owing to adding the first movable teeth 21 and the second movable teeth 31, chain 4 is set in the first movable teeth 21 and second and lives
Outside dynamic tooth 31, and the first movable teeth 21 can slidably reciprocate along the radial direction of drivewheel 2, and the second movable teeth 31 can be along driven pulley
The radial direction of 3 slidably reciprocates.When needing the transmission ratio regulating chain gear transmission assembly, live by regulating the first movable teeth 21 and second
Dynamic tooth 31 position on drivewheel 2 and driven pulley 3 respectively, it is possible to achieve the stepless speed regulation of chain gear transmission assembly.
Specifically, make multiple first movable teeth 21 simultaneously along drivewheel 2 radially-inwardly or be displaced outwardly.When the most inwardly
Time mobile, the diameter being equivalent to drivewheel of the prior art diminishes；When being displaced outwardly simultaneously, be equivalent to of the prior art
The diameter of drivewheel becomes big.In like manner, the move mode of the second movable teeth 31 is similar to.Therefore, by regulating the first movable teeth 21 He
The position of the second movable teeth 31, it is possible to achieve the transmission ratio of regulation chain gear transmission assembly, thus realize the nothing of chain gear transmission assembly
Level speed governing.
In the present embodiment, as Figure 2-3, chain gear transmission assembly also includes the first castor 22 and the second castor 32；
First castor 22 is coaxially connected with drivewheel 2, and multiple first movable teeths 21 are disposed on the first castor 22 and drivewheel 2
Between；Second castor 32 is coaxially connected with driven pulley 3, multiple second movable teeths 31 be disposed on the second castor 32 with from
Between driving wheel 3；First castor 22 can be axially displaced to when rotating promote the first movable teeth 21 to be moved radially outwards,
Second castor 32 can be axially displaced to when rotating promote the second movable teeth 31 to be moved radially outwards.
Wherein, the first castor 22 rotates and constantly when drivewheel 2, along the axis with drivewheel 2 near actively
The direction of wheel 2 is moved, and the first castor 22 extruding promotes the first movable teeth 21 to be moved radially outwards, multiple first movable teeths 21
The circumference of the annular of composition becomes big.When the first castor 22 rotates the most constantly away from drivewheel 2, along the axis of drivewheel 2
Moving and move to the direction away from drivewheel 2, now the first castor 22 does not produce extruding force to the first movable teeth 21, and is
First movable teeth 21 has conceded the space moved inward, and the first movable teeth 21, under the effect of chain 4, moves the most radially inward
Dynamic, the circumference of the annular of multiple first movable teeth 21 compositions diminishes.The motion mode of the second castor 32 is in like manner.
It is preferred that the first movable teeth 21 and the second movable teeth 31 can also be driven by other parts and move radially.
Such as: utilize electric magnet to control moving radially of the first movable teeth 21 and the second movable teeth 31.
In the present embodiment, as Figure 2-3, chain gear transmission assembly also includes that the second motor 5, the second motor 5 simultaneously drive
First castor 22 and the second castor 32 synchronize to be axially moveable.
Wherein, the second motor 5 can simultaneously drive the first castor 22 and the second castor 32 the most to the left or to the right
Mobile, now drivewheel 2 and driven pulley 3 are relatively-stationary in the axial direction.
It is preferred that the first castor 22 and the second castor 32 can also be driven respectively by different motors, first lives
Driving wheel 22 and the second castor 32 can be independently controlled, it is achieved the variation of regulative mode.
In the present embodiment, as shown in Figure 4, the first movable teeth 21 and the second movable teeth 31 are wedge structure, the first movable teeth
Two sides fitted with the first castor 22 and drivewheel 2 on 21 are inclined-plane, with the second castor 32 on the second movable teeth 31
Being inclined-plane with two sides of driven pulley 3 laminating, the outer face of the first movable teeth 22 and the second movable teeth 32 is wider, and inner face is relatively
Narrow.
Wherein, the drivewheel 2 of laminating corresponding with the side of the first movable teeth 21 and the end face of the first castor 22 also should
Also should be inclined-plane for inclined-plane, the driven pulley 3 of laminating corresponding with the side of the second movable teeth 31 and the end face of the second castor 32,
End face and side remain laminating.
In the present embodiment, as shown in Figure 4, the outer face of the first movable teeth 22 and the second movable teeth 32 is engaged with chain 4, real
Existing transmission.
In the present embodiment, as shown in Figure 4, chain 4 is provided with multiple tooth 41, the first movable teeth 21 and the second movable teeth 31
Outer face is provided with multiple groove (not shown) engaged with tooth 41.Chain 4 coordinates to come transmission by tooth 41 and groove.
It is preferred that multiple groove can be provided with on chain 4, can on the outer face of the first movable teeth 21 and the second movable teeth 31
To be provided with multiple and engagement projection.Chain 4 coordinates to come transmission by groove with protruding.
Preferably, the second motor 5 drives the first castor 22 and the second castor 32 along axle by a screw rod simultaneously
To movement, attaching nut's engagement of screw rod and the first castor 22 and the second castor 32.
It is preferred that the second motor 5 can also drive the first castor 22 and second by gear or other drive disk assemblies
Castor 32 rotates.
This utility model can pass through ECU (electronic control unit or car running computer) and be controlled the second motor 5, adjusts
Save the first castor 22 and the second castor 32 is axially moveable, thus regulate the first movable teeth 21 and the second movable teeth 31 along footpath
To movement, the final step-less adjustment realizing transmission ratio, output torque and output speed to chain gear transmission assembly.It addition, this reality
By the novel demand that disclosure satisfy that different automobile types, in order to coordinate different automobile types in prior art, need redesign motor, and this
Utility model, owing to can regulate transmission ratio, uses same motor, just can meet the demand of different automobile types.
Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that, for this area is general
For logical technical staff, on the basis of this utility model principle, it is also possible to make other modification some, also should be regarded as this practicality
Novel protection domain.
Claims (12)
1. drive a chain gear transmission assembly for electric power steering machine, including the first motor, drivewheel, driven pulley and chain,
Described first motor is used for driving described drivewheel to rotate, and described drivewheel drives described driven round by described chain
It is dynamic, it is characterised in that
Described chain gear transmission assembly also includes multiple first movable teeth and multiple second movable teeth；
Multiple described first movable teeth intervals are arranged on the end face of described drivewheel, and can along the footpath of described drivewheel always
Return and slide；
Multiple described second movable teeth intervals are arranged on the end face of described driven pulley, and can along the footpath of described driven pulley always
Return and slide；
Described chain is set in outside described first movable teeth and described second movable teeth, and with described first movable teeth and described
Two movable teeth engagements.
Chain gear transmission assembly the most according to claim 1, it is characterised in that described chain is provided with multiple groove, described
The outer face of the first movable teeth and described second movable teeth is provided with multiple and described engagement projection.
Chain gear transmission assembly the most according to claim 1, it is characterised in that described chain is provided with multiple tooth, described
The outer face of one movable teeth and described second movable teeth is provided with the groove that multiple and described tooth engages.
Chain gear transmission assembly the most according to claim 1, it is characterised in that described chain gear transmission assembly also includes that first lives
Driving wheel and the second castor；
Described first castor is coaxially connected with described drivewheel, and multiple described first movable teeths are disposed on described first and live
Between driving wheel and described drivewheel；
Described second castor is coaxially connected with described driven pulley, and multiple described second movable teeths are disposed on described second and live
Between driving wheel and described driven pulley；
Described first castor can be axially displaced to promote described first movable teeth to be moved radially outwards when rotating, described
Second castor can be axially displaced to promote described second movable teeth to be moved radially outwards when rotating.
Chain gear transmission assembly the most according to claim 4, it is characterised in that described chain gear transmission assembly also includes the second electricity
Machine, described second motor simultaneously drives described first castor and described second castor synchronizes to be axially moveable.
Chain gear transmission assembly the most according to claim 4, it is characterised in that described first movable teeth and described second activity
Tooth is wedge structure, and two sides that described first movable teeth is fitted with described first castor and described drivewheel are oblique
Face, two sides that described second movable teeth is fitted with described second castor and described driven pulley are inclined-plane, described first
The outer face of movable teeth and described second movable teeth is wider, and inner face is narrower.
7. an electric power steering machine, including turning to machine body, tooth bar and chain gear transmission assembly, described chain gear transmission assembly bag
Including the first motor, drivewheel, driven pulley and chain, described first motor is used for driving described drivewheel to rotate, described drivewheel
Driving described driven pulley to rotate by described chain, described driven pulley drives described racks turn, and described tooth bar is used for driving
Vehicle front rotates, it is characterised in that
Described chain gear transmission assembly also includes multiple first movable teeth and multiple second movable teeth；
Multiple described first movable teeth intervals are arranged on the end face of described drivewheel, and can along the footpath of described drivewheel always
Return and slide；
Multiple described second movable teeth intervals are arranged on the end face of described driven pulley, and can along the footpath of described driven pulley always
Return and slide；
Described chain is set in outside described first movable teeth and described second movable teeth, and with described first movable teeth and described
Two movable teeth engagements.
Electric power steering machine the most according to claim 7, it is characterised in that described chain is provided with multiple groove, institute
State the first movable teeth and described second movable teeth is provided with multiple and described engagement projection.
Electric power steering machine the most according to claim 7, it is characterised in that described chain is provided with multiple tooth, described
The outer surface of the first movable teeth and described second movable teeth is provided with the groove that multiple and described tooth engages.
Electric power steering machine the most according to claim 7, it is characterised in that described chain gear transmission assembly also includes
One castor and the second castor；
Described first castor is coaxially connected with described drivewheel, and multiple described first movable teeths are disposed on described first and live
Between driving wheel and described drivewheel；
Described second castor is coaxially connected with described driven pulley, and multiple described second movable teeths are disposed on described second and live
Between driving wheel and described driven pulley；
Described first castor can be axially displaced to promote described first movable teeth to be moved radially outwards when rotating, described
Second castor can be axially displaced to promote described second movable teeth to be moved radially outwards when rotating.
11. electric power steering machines according to claim 10, it is characterised in that described chain gear transmission assembly also includes
Two motors, described second motor simultaneously drives described first castor and described second castor synchronizes to be axially moveable.
12. electric power steering machines according to claim 10, it is characterised in that described first movable teeth and described second
Movable teeth is wedge structure, and two sides that described first movable teeth is fitted with described first castor and described drivewheel are
Inclined-plane, two sides that described second movable teeth is fitted with described second castor and described driven pulley are inclined-plane, described the
The outer face of one movable teeth and described second movable teeth is wider, and inner face is narrower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620290382.0U CN205469257U (en) | 2016-04-08 | 2016-04-08 | Drive sprocket feed subassembly and electronic power assisted steering machine of electronic power assisted steering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620290382.0U CN205469257U (en) | 2016-04-08 | 2016-04-08 | Drive sprocket feed subassembly and electronic power assisted steering machine of electronic power assisted steering machine |
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| Publication Number | Publication Date |
|---|---|
| CN205469257U true CN205469257U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620290382.0U Active CN205469257U (en) | 2016-04-08 | 2016-04-08 | Drive sprocket feed subassembly and electronic power assisted steering machine of electronic power assisted steering machine |
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| Country | Link |
|---|---|
| CN (1) | CN205469257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112455532A (en) * | 2019-09-06 | 2021-03-09 | 上银科技股份有限公司 | Electric power steering system and control method |
| CN114394151A (en) * | 2021-12-15 | 2022-04-26 | 重庆大学 | Man-machine co-driving steering control method and steering system of intelligent automobile |
-
2016
- 2016-04-08 CN CN201620290382.0U patent/CN205469257U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112455532A (en) * | 2019-09-06 | 2021-03-09 | 上银科技股份有限公司 | Electric power steering system and control method |
| CN112455532B (en) * | 2019-09-06 | 2022-02-08 | 上银科技股份有限公司 | Electric power steering system and control method |
| CN114394151A (en) * | 2021-12-15 | 2022-04-26 | 重庆大学 | Man-machine co-driving steering control method and steering system of intelligent automobile |
| CN114394151B (en) * | 2021-12-15 | 2024-05-07 | 重庆大学 | Man-machine co-driving steering control method and steering system of intelligent automobile |
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