CN203094161U - Differential type power-assisted steering handle device for industrial vehicle - Google Patents
Differential type power-assisted steering handle device for industrial vehicle Download PDFInfo
- Publication number
- CN203094161U CN203094161U CN 201320066498 CN201320066498U CN203094161U CN 203094161 U CN203094161 U CN 203094161U CN 201320066498 CN201320066498 CN 201320066498 CN 201320066498 U CN201320066498 U CN 201320066498U CN 203094161 U CN203094161 U CN 203094161U
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- steering shaft
- handle
- steering
- industrial vehicle
- differential type
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- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The utility model relates to an industrial vehicle steering operation control device, in particular to a differential type power-assisted steering handle device for an industrial vehicle. According to the technical scheme, the differential type power-assisted steering handle device for the industrial vehicle comprises a handle steering shaft and a driving steering shaft which is coupled a driving wheel and can rotate relative to the handle steering shaft, the handle device further comprises a feedback piece which can produce changes which can be felt by an operator, the changes are produced through relative rotation of the handle reversing shaft and the driving reversing shaft, and the variation amplitude of the feedback piece is controlled by the relative rotation amplitude of the handle reversing shaft and the driving reversing shaft. According to the differential type power-assisted steering handle device for the industrial vehicle, the phenomenon that deviation occurs in reversing judgment when the operator takes a sudden turn is avoided, and cost is low.
Description
Technical field
The utility model relates to industrial vehicle steering operation control setup, particularly a kind of industrial vehicle differential type servo-steering handle apparatus.
Background technology
Industrial vehicle steering mode of the prior art generally adopts electrical steering, as Granted publication number is the disclosed a kind of fork truck electrical steering device of utility model patent of CN201457457U, it comprises stepping motor, the electric power steering assembly, controller, limit sensors, near switch, show not device, AC servo motor, the S. A. at traversing handwheel place is connected with stepping motor is coaxial, stepping motor is connected with electric power steering assembly controller signal, limit sensors is connected with being set up in parallel near switch in the both sides of steering wheel and with electric power steering assembly controller signal, telltale is connected with electric power steering assembly controller signal, electric power steering assembly controller mouth is connected with the AC servo motor signal, and the output shaft of AC servo motor and the dynamical axis of steering hardware are connected.
And for example the disclosed a kind of cost of the patent of invention of Granted publication CN101734280B hangs down the little electronically controlled steering device that is used for fork truck of daily power consumption, it by turn to handle, steering shaft, steering wheel, direction wheel shaft, DC machine, with fork truck on direct supply bonded assembly steering controller, gear case, first transmission device, first transmission device, first sensor, first sensor and second sensor; First sensor is fixed on the fork truck car body and also is connected with the bottom of steering shaft by first transmission device; First sensor is fixed on the DC machine and with rotating shaft captives joint; Second sensor is located between the follower of the fork truck car body and first transmission device; First sensor, DC machine, first sensor, second sensor all are electrically connected with steering controller.
Above-mentioned electrical steering technology has been improved the shortcoming that original industrial vehicle adopts machinery or hydraulically powered side thruster, turns to light, flexible.
Yet, adopt the industrial vehicle of electrical steering device, its electronic power assist steering mechanism and drive wheel mechanism are installed separately, the signal that sensor when needing to rotate in the assisted power steering system or potential device receive the handle rotation is delivered in the control system again, and control system driving steer motor is rotated to drive drive wheel mechanism and turned to; With the handle rotational angle with to drive ratio of turning be that the servo steering system of 1:1 is an example, what the steering angle of handle and speed should be real-time in principle is reflected on the drive wheel, because electronic power assist steering mechanism and drive wheel mechanism that handle drives separate, the operator may be too fast in steering operation turn to, yet the time that the controller of most of vehicles control steer motor turns to is fixed, the time of operator's steering operation is less than the motor steering time at this moment, will cause the actual steering track of vehicle and operator's estimation not to be inconsistent, thereby may cause danger.
At present at the problems referred to above, the solution of taking is to realize the lever operated time and drive time to turn synchronous by the time to turn of dwindling drive wheel, but this method needs higher cost, and the grade that not only needs to improve controller also needs performance-oriented steer motor; Yet actual common on the market servo-steering driving wheel of vehicle time to turn can be satisfied work requirements, and increasing so many one-tenth, to reduce drive wheel time to turn originally unactual to cater to the too fast emergency case of operator's turning velocity.
The utility model content
The purpose of this utility model provides a kind of industrial vehicle with differential type servo-steering handle apparatus, turn to when avoiding operator's sharply turning occurring and judge the phenomenon that deviation occurs, and cost is lower.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of industrial vehicle differential type servo-steering handle apparatus, comprise the handle steering shaft, link and can drive steering shaft in relative rotation with described handle steering shaft with drive wheel, this kind handle apparatus also comprise can owing to the handle steering shaft with drive relatively rotating of steering shaft produce can the variation that the person of being operated felt the feedback part, and the rangeability of described feedback part is controlled by described handle steering shaft and the amplitude that relatively rotates that drives steering shaft.
Setting by the feedback part, even during operator's sharply turning, also be that the steering operation time is less than motor steering during the time, the operator also feeds back part by impression because the handle steering shaft judges with the variation that produces that relatively rotates that drives steering shaft whether driving has turned over corresponding angle, thereby the time that turns to operation in the solution prior art is less than motor steering during the time, the phenomenon that will cause the actual steering track of vehicle and operator's estimation not to be inconsistent; Simultaneously, because the technical program need not controller and steer motor are proposed higher requirement, only be that the device to operator's direct control improves, so cost is lower.
As of the present utility model preferred, described feedback part is resistance to be provided and to provide power-assisted elastic component for described driving steering shaft rotates in the same way for described handle steering shaft rotation.
As of the present utility model further preferred again, described handle steering shaft and the socket of driving steering shaft, and be provided with the circular gap that is used to limit the amplitude that relatively rotates between described handle steering shaft and the described driving steering shaft between described handle steering shaft and the driving steering shaft; Described feedback part is positioned at described circular gap.
As of the present utility model further preferred again, described driving steering shaft comprises flange; Described handle steering shaft comprises the overcoat that is placed in outside the described flange upright side walls; Have groove on the inwall of the upright side walls of described flange; Described outer putting has the projection that is positioned at described groove; Described pivot region is the space between protruding sidewall and the corresponding recesses sidewall.
As of the present utility model further preferred again, described groove has three, and corresponding described projection also has three.
As of the present utility model further preferred again, described groove has two, and corresponding described projection also has two.
As of the present utility model further preferred again, described groove has four, and corresponding described projection also has four.
In sum, the utlity model has following beneficial effect: the utility model is simple in structure, and is easy to implement; Turn in the time of effectively avoiding operator's sharply turning occurring and judge the phenomenon that deviation occurs, and cost is lower, more because the feedback part is the setting of elastic component, make to the utlity model has stronger operating handle, make the operator can whether be diverted to the relevant position to drive wheel and judge soundly by judgement to feel.
Description of drawings
Fig. 1 is the example structure scheme drawing;
Fig. 2 is a handle steering shaft and drive connection structure scheme drawing between the steering shaft among the embodiment.
Among the figure, 1, the handle steering shaft, 11, angular-motion transducer, 12, overcoat, 121, projection, 2, the feedback part, 3, drive wheel, 5, drive steering shaft, 51, flange, 511, groove, 52, gear, 6, vehicle frame, 7, steer motor.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification sheets, but as long as all are subjected to the protection of patent law in claim scope of the present utility model.
Embodiment: shown in Fig. 1-2, a kind of industrial vehicle differential type servo steering device, comprise vehicle frame 6, vehicle frame 6 bottoms are provided with drive wheel 3, also be provided with on the vehicle frame 6 and drive the driving steering shaft 5 that drive wheel 3 rotates, the bottom that drives steering shaft 5 is installed with gear 52, also is provided with the steer motor 7 that turns to drive drive wheel 3 with gear 52 engagements on the vehicle frame 6.
Drive on the steering shaft 5 and be arranged with handle steering shaft 1, be provided with in the handle steering shaft 1 and be used to detect handle steering shaft 1 rotational angle so that steer motor 7 is carried out the angular-motion transducer 11 of corresponding handling maneuver.
Handle steering shaft 1 has overcoat 12, and overcoat 12 madial walls are provided with three projectioies 121; Drive steering shaft 5 and have flange 51, the upright side walls of flange 51 is placed in the overcoat 12, and the upright side walls of flange 51 is provided with and hold three grooves 511 of respective bump 121, and is formed for limiting between the sidewall of the sidewall of groove 511 and respective bump 121 between handle steering shaft 1 and the driving steering shaft 5 and relatively rotates the amplitude circular gap; In each circular gap, all be provided with feedback part 2; Feedback part 2 is a high polymer elastic spare.
Principle of work: circular gap can make handle steering shaft 1 with drive that steering shaft 5 produces relatively rotate the precision angle of angle greater than angular-motion transducer 11; When turning to, operator's turning handle steering shaft 1, respective feedback part 2 is compressed at this moment, therefore, the operator can know and experiences the resistance that prevention handle steering shaft 1 that feedback part 2 pairs of handle steering shafts 1 produce is rotated further, and this resistance size directly is controlled by the rotation owing to handle steering shaft 1, and makes the compressed amplitude of corresponding circular gap, also promptly feeds back part 2 compressed amplitudes; When the operator finishes steering operation, steer motor 7 is owing to the signal of angular-motion transducer 11 drives drive wheel 3, when also promptly driving steering shaft 5 rotation respective angles, compressed feedback part 2 is replied gradually, whether disappear thereby make the operator can clearly experience above-mentioned resistance ground, so that the operator can go to respective angles and have right judgement to drive wheel.
Here, feedback part 2 can not only be an elastic component also, can be the indication pieces such as gauge panel of the viewed wheel of monitoring driving in real time of operator rotation amplitude; Feedback part 2 can not only be a high polymer elastic spare, also can be other elastic component, for example spring; Elastic component also not necessarily only produces the elastic force mode so that the operator judges by compression, for example, can produce the mode of elastic force by the tensile elasticity part; Handle steering shaft 1 also is not limited only to socket with the connection mode that drives steering shaft 5, feedback part 2 can be produced allow the connection mode of the variation that the operator can experience, for example, handle steering shaft 1 with drive steering shaft 5 and present up and down and distribute, be provided with the elastic component that can twist owing to both relatively rotating between both two opposite end faces.
Claims (7)
1. an industrial vehicle is with differential type servo-steering handle apparatus, comprise handle steering shaft (1), link and can drive steering shaft (5) in relative rotation with described handle steering shaft (1) with drive wheel (3), it is characterized in that, this kind handle apparatus also comprise can owing to handle steering shaft (1) with drive relatively rotating of steering shaft (5) produce can the variation that the person of being operated felt feedback part (2), and the rangeability of described feedback part (2) is controlled by described handle steering shaft (1) and the amplitude that relatively rotates that drives steering shaft (5).
2. a kind of industrial vehicle according to claim 1 differential type servo-steering handle apparatus, it is characterized in that described feedback part (2) is resistance to be provided and to provide power-assisted elastic component for described driving steering shaft rotates (5) in the same way for described handle steering shaft (1) rotation.
3. a kind of industrial vehicle according to claim 2 differential type servo-steering handle apparatus, it is characterized in that, described handle steering shaft (1) and the socket of driving steering shaft (5), and be provided with the circular gap that is used to limit the amplitude that relatively rotates between described handle steering shaft (1) and the described driving steering shaft (5) between described handle steering shaft (1) and the driving steering shaft (5); Described feedback part (2) is positioned at circular gap.
4. a kind of industrial vehicle according to claim 3 is characterized in that with differential type servo-steering handle apparatus described driving steering shaft (5) comprises flange (51); Described handle steering shaft (1) comprises the overcoat (12) that is placed in outside described flange (51) upright side walls; Have groove (511) on the inwall of the upright side walls of described flange (51); Has the projection (121) that is positioned at described groove (511) on the described overcoat (12); Described pivot region is the space between projection (121) sidewall and corresponding recesses (511) sidewall.
5. a kind of industrial vehicle according to claim 4 is characterized in that with differential type servo-steering handle apparatus described groove (511) has three, and corresponding described projection (121) also has three.
6. a kind of industrial vehicle according to claim 4 is characterized in that with differential type servo-steering handle apparatus described groove (511) has two, and corresponding described projection (121) also has two.
7. a kind of industrial vehicle according to claim 4 is characterized in that with differential type servo-steering handle apparatus described groove (511) has four, and corresponding described projection (121) also has four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066498 CN203094161U (en) | 2013-02-06 | 2013-02-06 | Differential type power-assisted steering handle device for industrial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066498 CN203094161U (en) | 2013-02-06 | 2013-02-06 | Differential type power-assisted steering handle device for industrial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203094161U true CN203094161U (en) | 2013-07-31 |
Family
ID=48845592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320066498 Withdrawn - After Issue CN203094161U (en) | 2013-02-06 | 2013-02-06 | Differential type power-assisted steering handle device for industrial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203094161U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112488A (en) * | 2013-02-06 | 2013-05-22 | 浙江诺力机械股份有限公司 | Differential type power-assisted steering handle device for industrial vehicle |
| WO2016061728A1 (en) * | 2014-10-20 | 2016-04-28 | 浙江诺力机械股份有限公司 | Differential-type power-assisted steering device of industrial vehicle |
| WO2018126597A1 (en) * | 2017-01-05 | 2018-07-12 | 诺力机械股份有限公司 | Industrial vehicle |
-
2013
- 2013-02-06 CN CN 201320066498 patent/CN203094161U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112488A (en) * | 2013-02-06 | 2013-05-22 | 浙江诺力机械股份有限公司 | Differential type power-assisted steering handle device for industrial vehicle |
| CN103112488B (en) * | 2013-02-06 | 2015-04-15 | 浙江诺力机械股份有限公司 | Differential type power-assisted steering handle device for industrial vehicle |
| WO2016061728A1 (en) * | 2014-10-20 | 2016-04-28 | 浙江诺力机械股份有限公司 | Differential-type power-assisted steering device of industrial vehicle |
| WO2018126597A1 (en) * | 2017-01-05 | 2018-07-12 | 诺力机械股份有限公司 | Industrial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150415 |
|
| RGAV | Abandon patent right to avoid regrant |