CN205396208U - Electronic steering gear of automobile -used circulation ball formula - Google Patents
Electronic steering gear of automobile -used circulation ball formula Download PDFInfo
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- CN205396208U CN205396208U CN201620125951.6U CN201620125951U CN205396208U CN 205396208 U CN205396208 U CN 205396208U CN 201620125951 U CN201620125951 U CN 201620125951U CN 205396208 U CN205396208 U CN 205396208U
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Abstract
The utility model discloses an electronic steering gear of automobile -used circulation ball formula, including input member, the output unit, shell and assist drive device, input member includes the input shaft, and the steering screw of connection at the input shaft output, the output unit is including output rack nut and output shaft, output rack nut cup joints and constitute the lead screw structure outside steering screw, the gear of rack nut outside adaptation is equipped with and exports on the output shaft, assist drive device includes rotary angle transmitter, controller and helping hand driver, rotary angle transmitter installs the collection input information of department at input member, rotary angle transmitter and helping hand driver are connected respectively to the controller, and control the helping hand driver according to input information, the output of helping hand driver is connected with output rack nut or output shaft, greatly reduced the load of each part of steering gear input section, the size of each part size of steering gear input section has been reduced greatly, it is integrative with the steering gear, do not receive driver's cabin space limitation, and transmission efficiency is high, and realizing high adaptability.
Description
Technical field
This utility model relates to a kind of automobile-used circulating ball type electric steering device.
Background technology
Development along with science and technology, automotive engineering is gradually to intelligent development, the automatic Pilot that intelligent automobile comprises, automatic emergency is dodged, automatic parking etc. auxiliary is driven function and all be must be set up on the vehicle-mounted basis turned to, electric direction varying device maneuvering performance compared with traditional hydraulic power steering gear is better, controller (ECU) is guided speed by program, the information such as steering wheel rotating speed provide different power steerings, thus reaching best maneuvering performance, New-energy electric vehicle development is more and more faster, owing to eliminating electromotor, to be replaced with the dynamical system of conventional hydraulic power-assisted, obtain using electric energy as the development of the electric direction varying device of power resources and be increasingly widely applied, the development of electric direction varying device oneself turn to industry trend of the times.
The power produced by motor on automobile assists the steering gear that driver turns to be electric direction converter of vehicle, the electric direction varying device that current vehicle uses mainly has pinion and-rack and circulating ball type two kinds, rack and pinion steering gear is mainly used in passenger car, light commercial vehicle (such as pick up), recirculating ball-type steering is mainly used in commercial car, consider due to versatility and electric direction varying device maximum output torque is limit, only pinion and-rack electric direction varying device must in extensive use at present, and pinion and-rack electric direction varying device is not only confined to car on vehicle is applied, light commercial vehicle, and the limited torque output of pinion and-rack electric direction varying device, it is not suitable for the vehicle that front load per axle is big.
nullCirculating ball type electric steering device refers to that the manipulation machinery of steering gear is circulating ball structure steering gear，The transmission that the built-in steel ball of helicla flute that recirculating ball-type steering is collectively forming by bolt and nut is constituted，And the transmission composition that nut upper rack is constituted with tooth fan on output shaft，The application of circulating ball type electric steering device to be tried one's best and not changed on former car before steering gear、Steering gear afterwards: include steering wheel、Steering spindle、Steering universal joint、Steering gear mounting bracket、Pitman arm、Steering drag link、Knuckle arm etc.，Ensure steering gear input shaft position dimension、Installation dimension、Position of output axle size、Output torque、Maximum output angle、Gear ratio is tried one's best consistent with conventional hydraulic assisted circulation ball steering gear，And current circulating ball type electric steering device power-assisted source is arranged on power shaft，The load of each part in steering gear importation is big，This is significantly high to performance requirements such as the intensity of each part in steering gear importation，The each accessory size in steering gear importation is big，It is difficult to meet requirements above and be dfficult to apply to the commercial car field that front load per axle is bigger，Limit to its application in electric automobile.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of automobile-used circulating ball type electric steering device, power-assisted source is arranged on the outfan of steering gear, directly outfan is driven.
This utility model solves the technical scheme that its technical problem adopts:
A kind of automobile-used circulating ball type electric steering device, including input block, output block, shell and servomechanism；
Described input block includes power shaft, and is connected to the steering screw of power shaft outfan；
Described output block includes output rack nut and output shaft,
Described output tooth bar nut sleeve is connected on outside steering screw and constitutes screw structure,
Described output shaft be provided with described output rack nut outside adaptive gear；
Described servomechanism includes rotary angle transmitter, controller and power-boost driving device,
Described rotary angle transmitter is arranged on input block place and collects input information,
Described controller connects rotary angle transmitter and power-boost driving device respectively, and according to input information, power-boost driving device is controlled,
The output of described power-boost driving device is connected with output rack nut or output shaft.
Further, described output rack nut end is provided with spin screw mandrel, steadily accurately, the deceleration realizing power-boost driving device increases square output, described power-boost driving device is connected to drive mechanism, and described power-boost driving device is connected with spin screw mandrel by drive mechanism, alleviates the load of input block.
Further, described drive mechanism is worm-and-wheel gear, it is possible to obtaining very big gear ratio, compact conformation, bearing capacity is big, and stable drive, noise are only small.
Further, described drive mechanism is synchronous belt wheel mechanism, and transmission is accurate, during work fricton-tight, there is constant gear ratio, stable drive, there is buffering, damping capacity, noise is low, and transmission efficiency is high, and maintaining is convenient, do not need lubrication, maintenance cost is low, and ratio coverage is big, has bigger power transmission scope.
Further, the output of described power-boost driving device is connected to output shaft tail end, simple and practical.
Further, described output shaft tail end is provided with connection flat key, simple and practical.
Further, described power-boost driving device is connected to deceleration and increases square gear pair, and described power-boost driving device increases square gear pair by slowing down and is connected on the gear of output shaft, it is achieved the deceleration of power-boost driving device increases square output, alleviates the load of steering gear importation further.
Further, described power-boost driving device includes assist motor, electromagnetic clutch and decelerator, controls power-boost driving device clutch.
Further, described assist motor is direct current generator.
Further, described electromagnetic clutch is dry-type multidisc electromagnetic clutch.
The beneficial effects of the utility model are: steering wheel inputs rotation information by power shaft, input information is collected and sends controller to by rotary angle transmitter, power shaft drives steering screw to rotate while rotating, steering screw drives output tooth bar nut rotation, output rack nut by with its outside adaptive gear driven output shaft rotation, meanwhile, power-boost driving device is controlled by controller according to input information, and power-boost driving device drives output rack nut or output shaft to complete go to action.nullServomechanism is arranged on the output part of electric direction varying device，Greatly reduce the load of each part in steering gear importation，The performance requirements such as the intensity alleviating each part in steering gear importation，Substantially reduce the size of each accessory size in steering gear importation，With steering gear one，Do not limited by cab space、Transmission efficiency is high、Do not change on former car before steering gear、Steering gear afterwards: include steering wheel、Steering spindle、Steering universal joint、Steering gear mounting bracket、Pitman arm、Steering drag link、Knuckle arm etc.，It is effectively ensured steering gear input shaft position dimension、Installation dimension、Position of output axle size、Output torque、Maximum output angle、Gear ratio is consistent with conventional hydraulic assisted circulation ball steering gear，Bigger output torque can be obtained when meeting power and gear ratio，The commercial car field that front load per axle is bigger can be readily applied to，Make it can be able to extensive use in electric automobile.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structural representation of a kind of automobile-used circulating ball type electric steering device in embodiment 1；
Fig. 2 be in embodiment 1 a kind of automobile-used circulating ball type electric steering device along the profile of A-A；
Fig. 3 is the front view of a kind of automobile-used circulating ball type electric steering device in embodiment 2；
Fig. 4 is the left view of a kind of automobile-used circulating ball type electric steering device in embodiment 2；
Fig. 5 is the right view of a kind of automobile-used circulating ball type electric steering device in embodiment 2；
Fig. 6 is the front view of a kind of automobile-used circulating ball type electric steering device in embodiment 3；
Fig. 7 is the left view of a kind of automobile-used circulating ball type electric steering device in embodiment 3；
Fig. 8 is the right view of a kind of automobile-used circulating ball type electric steering device in embodiment 3；
Fig. 9 is the structural representation of a kind of automobile-used circulating ball type electric steering device in embodiment 4；
Figure 10 be in embodiment 4 a kind of automobile-used circulating ball type electric steering device along the profile of B-B.
Detailed description of the invention
This utility model provides multiple specific embodiment structure to automobile-used circulating ball type electric steering device and illustrates.
With reference to Fig. 1～2, the embodiment 1 that this utility model provides, including input block, output block, shell and servomechanism, input block includes power shaft 11, and it is connected to the steering screw 21 of power shaft 11 outfan, output block includes output rack nut 22 and output shaft 31, output rack nut 22 is socketed in outside steering screw 21 and constitutes screw structure, output shaft 31 is provided with and exports fan tooth adaptive outside rack nut 22, servomechanism includes rotary angle transmitter 12, controller and power-boost driving device 32, rotary angle transmitter 12 is arranged on input block place and collects input information, controller connects rotary angle transmitter 12 and power-boost driving device 32 respectively, and according to input information, power-boost driving device 32 is controlled.
Driver's direction of operating dish rotates vehicle, rotation information is passed to power shaft 11 by steering wheel, rotation information is passed to steering screw 21 by power shaft 11 again, simultaneously, the rotation information of input is collected by rotary angle transmitter 12, steering screw 21 drives output rack nut 22 to rotate, output rack nut 22 is meshed with the fan tooth on output shaft 31 and drives it to rotate, on the other hand, the rotation information of input is passed to controller by rotary angle transmitter 12, controller drives assist motor output according to the rotation information of input, assist motor is undertaken slowing down by decelerator and increases square, it is also associated with electromagnetic clutch simultaneously, assist motor connects output shaft 31 tail end by coupling flat key 33, output shaft 31 has been rotated power-assisted effect.
With reference to Fig. 3～5, the embodiment 2 that this utility model provides, including input block, output block, shell and servomechanism, input block includes power shaft 11, and it is connected to the steering screw 21 of power shaft 11 outfan, output block includes output rack nut 22 and output shaft 31, output rack nut 22 is socketed in outside steering screw 21 and constitutes screw structure, output shaft 31 is provided with and exports fan tooth adaptive outside rack nut 22, servomechanism includes rotary angle transmitter 12, controller and power-boost driving device 32, rotary angle transmitter 12 is arranged on input block place and collects input information, controller connects rotary angle transmitter 12 and power-boost driving device 32 respectively, and according to input information, power-boost driving device 32 is controlled.
nullDriver's direction of operating dish rotates vehicle，Rotation information is passed to power shaft 11 by steering wheel，Rotation information is passed to steering screw 21 by power shaft 11 again，Simultaneously，The rotation information of input is collected by rotary angle transmitter 12，Steering screw 21 drives output rack nut 22 to rotate，Output rack nut 22 is meshed with the fan tooth on output shaft 31 and drives it to rotate，On the other hand，The rotation information of input is passed to controller by rotary angle transmitter 12，Controller drives assist motor output according to the rotation information of input，Assist motor is undertaken slowing down by synchronous belt wheel mechanism and increases square，It is also associated with electromagnetic clutch simultaneously，Output rack nut 22 end is provided with spin screw mandrel，Assist motor drives the spin screw mandrel of output rack nut 22 to rotate by synchronous belt wheel mechanism，By exporting rack nut 22, output shaft 31 is played power-assisted effect.
With reference to Fig. 6～8, the embodiment 3 that this utility model provides, including input block, output block, shell and servomechanism, input block includes power shaft 11, and it is connected to the steering screw 21 of power shaft 11 outfan, output block includes output rack nut 22 and output shaft 31, output rack nut 22 is socketed in outside steering screw 21 and constitutes screw structure, output shaft 31 is provided with and exports fan tooth adaptive outside rack nut 22, servomechanism includes rotary angle transmitter 12, controller and power-boost driving device 32, rotary angle transmitter 12 is arranged on input block place and collects input information, controller connects rotary angle transmitter 12 and power-boost driving device 32 respectively, and according to input information, power-boost driving device 32 is controlled.
Driver's direction of operating dish rotates vehicle, rotation information is passed to power shaft 11 by steering wheel, rotation information is passed to steering screw 21 by power shaft 11 again, simultaneously, the rotation information of input is collected by rotary angle transmitter 12, steering screw 21 drives output rack nut 22 to rotate, output rack nut 22 is meshed with the fan tooth on output shaft 31 and drives it to rotate, on the other hand, the rotation information of input is passed to controller by rotary angle transmitter 12, controller drives assist motor output according to the rotation information of input, assist motor is undertaken slowing down by worm-and-wheel gear and increases square, it is also associated with electromagnetic clutch simultaneously, assist motor drives output rack nut 22 by worm-and-wheel gear, output shaft 31 has been rotated power-assisted effect by output rack nut 22 again.
With reference to Fig. 9～10, the embodiment 4 that this utility model provides, including input block, output block, shell and servomechanism, input block includes power shaft 11, and it is connected to the steering screw 21 of power shaft 11 outfan, output block includes output rack nut 22 and output shaft 31, output rack nut 22 is socketed in outside steering screw 21 and constitutes screw structure, output shaft 31 is provided with and exports gear adaptive outside rack nut 22, servomechanism includes rotary angle transmitter 12, controller and power-boost driving device 32, rotary angle transmitter 12 is arranged on input block place and collects input information, controller connects rotary angle transmitter 12 and power-boost driving device 32 respectively, and according to input information, power-boost driving device 32 is controlled.
nullDriver's direction of operating dish rotates vehicle，Rotation information is passed to power shaft 11 by steering wheel，Rotation information is passed to steering screw 21 by power shaft 11 again，Simultaneously，The rotation information of input is collected by rotary angle transmitter 12，Steering screw 21 drives output rack nut 22 to rotate，Output rack nut 22 is meshed with the increasing square gear pair 34 that slows down and drives it to rotate，The increasing square gear pair 34 that slows down is meshed with the gear outside output shaft 31 and drives it to rotate，On the other hand，The rotation information of input is passed to controller by rotary angle transmitter 12，Controller drives assist motor output according to the rotation information of input，Assist motor is undertaken slowing down by decelerator and increases square，It is also associated with electromagnetic clutch simultaneously，Assist motor drives output shaft 31 by decelerator，Output shaft 31 has been rotated power-assisted effect.
Embodiment 4 has added deceleration than embodiment 1 and has increased square gear pair 34, it is possible to alleviate the load of steering gear importation further.
The above, simply better embodiment of the present utility model, but this utility model is not limited to above-described embodiment, as long as it reaches technique effect of the present utility model with any same or similar means, all should fall within protection domain of the present utility model.
Claims (10)
1. an automobile-used circulating ball type electric steering device, it is characterised in that include input block, output block, shell and servomechanism；
Described input block includes power shaft (11), and is connected to the steering screw (21) of power shaft (11) outfan；
Described output block includes output rack nut (22) and output shaft (31),
Described output rack nut (22) is socketed in steering screw (21) and constitutes outward screw structure,
Described output shaft (31) is provided with the gear adaptive with described output rack nut (22) outside；
Described servomechanism includes rotary angle transmitter (12), controller and power-boost driving device (32),
Described rotary angle transmitter (12) is arranged on input block place and collects input information,
Described controller connects rotary angle transmitter (12) and power-boost driving device (32) respectively, and according to input information, power-boost driving device (32) is controlled,
The output of described power-boost driving device (32) is connected with output rack nut (22) or output shaft (31).
2. the automobile-used circulating ball type electric steering device of one according to claim 1, it is characterized in that: described output rack nut (22) end is provided with spin screw mandrel, described power-boost driving device (32) is connected to drive mechanism, and described power-boost driving device (32) is connected with spin screw mandrel by drive mechanism.
3. the automobile-used circulating ball type electric steering device of one according to claim 2, it is characterised in that: described drive mechanism is worm-and-wheel gear.
4. the automobile-used circulating ball type electric steering device of one according to claim 2, it is characterised in that: described drive mechanism is synchronous belt wheel mechanism.
5. the automobile-used circulating ball type electric steering device of one according to claim 1, it is characterised in that: the output of described power-boost driving device (32) is connected to output shaft (31) tail end.
6. the automobile-used circulating ball type electric steering device of one according to claim 5, it is characterised in that: described output shaft (31) tail end is provided with connection flat key (33).
7. the automobile-used circulating ball type electric steering device of one according to claim 1, it is characterized in that: described power-boost driving device (32) is connected to deceleration and increases square gear pair (34), described power-boost driving device (32) increases square gear pair (34) by slowing down and is connected on the gear of output shaft (31).
8. according to the arbitrary described automobile-used circulating ball type electric steering device of one of claim 1 to 7, it is characterised in that: described power-boost driving device (32) includes assist motor, electromagnetic clutch and decelerator.
9. the automobile-used circulating ball type electric steering device of one according to claim 8, it is characterised in that: described assist motor is direct current generator.
10. the automobile-used circulating ball type electric steering device of one according to claim 8, it is characterised in that: described electromagnetic clutch is dry-type multidisc electromagnetic clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125951.6U CN205396208U (en) | 2016-02-05 | 2016-02-05 | Electronic steering gear of automobile -used circulation ball formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125951.6U CN205396208U (en) | 2016-02-05 | 2016-02-05 | Electronic steering gear of automobile -used circulation ball formula |
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| Publication Number | Publication Date |
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| CN205396208U true CN205396208U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620125951.6U Active CN205396208U (en) | 2016-02-05 | 2016-02-05 | Electronic steering gear of automobile -used circulation ball formula |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564498A (en) * | 2016-02-05 | 2016-05-11 | 江门市兴江转向器有限公司 | Automotive circulating ball type electric steering gear |
| CN111051183A (en) * | 2017-08-25 | 2020-04-21 | 克诺尔转向系统日本有限公司 | Steering device |
-
2016
- 2016-02-05 CN CN201620125951.6U patent/CN205396208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564498A (en) * | 2016-02-05 | 2016-05-11 | 江门市兴江转向器有限公司 | Automotive circulating ball type electric steering gear |
| CN111051183A (en) * | 2017-08-25 | 2020-04-21 | 克诺尔转向系统日本有限公司 | Steering device |
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