CN104260778A - Actuator of differential steering control device - Google Patents
Actuator of differential steering control device Download PDFInfo
- Publication number
- CN104260778A CN104260778A CN201410479669.3A CN201410479669A CN104260778A CN 104260778 A CN104260778 A CN 104260778A CN 201410479669 A CN201410479669 A CN 201410479669A CN 104260778 A CN104260778 A CN 104260778A
- Authority
- CN
- China
- Prior art keywords
- worm
- gear
- wheel shaft
- steering control
- differential steering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 4
- 230000007935 neutral effect Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0442—Conversion of rotational into longitudinal movement
- B62D5/0454—Worm gears
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses an actuator of a differential steering control device. The output shaft of a motor is coaxially connected with the end portion of a worm, the worm is engaged with a worm gear which sleeves a worm gear shaft, and a primary gear coaxially sleeves the worm gear shaft; a secondary gear is engaged with the primary gear; the secondary gear and a variable pump swashplate coaxially and fixedly sleeve a gear shaft; two ends of the worm, the worm gear shaft and the gear shaft are supported on a housing by use of bearings, respectively. The actuator of the differential steering control device has the advantages that the variable pump swashplate is driven by the motor, the worm gear, the worm and the gears, and due to fixed and reliable transmission of the motor, the worm gear, the worm and the gears and relatively small errors, the opening of the variable pump swashplate can be effectively controlled and the variable pump swashplate is enabled to return to a neutral position, and therefore, the defect that a traditional inhaul cable mechanism fails in enabling the variable pump swashplate to effectively return to the neutral position is well overcome; besides, the actuator is electrically controlled instead of manual control in the past.
Description
Technical field
The invention belongs to differential steering control field, specifically, particularly relate to a kind of actuating unit of differential steering control setup.
Background technology
Automobile steering system is the specialized agency for changing or keep vehicle heading, and its effect is in vehicle travel process, and the will according to chaufeur changes vehicle heading.According to the difference of steering mode, track can be divided into turn to the large class with differential steering two.
At present, in known differential steering vehicle, most employing mechanical type hydraulic power steering: the some mechanical of output is converted into hydraulic energy by steering variable pump by driving engine, by regulating rotary to the swash plate aperture on controllable capacity pump, hydraulic fluid flow rate is changed, be that mechanical energy exports to change speed gear box by steering motor by hydraulic energy transfer again, thus realize the function of differential steering.Wherein, steering column is mainly connected with controllable capacity pump swash plate by drag-line by the adjustment of swash plate aperture.But, because drag-line is long, and drag-line fatigue can cause its length variations, will make like this to adopt the mode of drag-line manipulation can not effectively allow steering variable pump swash plate return meta, thus cause vehicle can not straight-line travelling, can the problems such as starting resistance be increased when starting vehicle, chaufeur will be caused like this to require great effort when steering wheel rotation; In addition, during reversing, the turn direction of vehicle reality is contrary with the hand of rotation of bearing circle, affects car load handling.
Summary of the invention
Technical matters to be solved by this invention is the actuating unit providing a kind of differential steering control setup, returns meta for effectively allowing controllable capacity pump swash plate.
Technical scheme of the present invention is as follows: a kind of actuating unit of differential steering control setup, it is characterized in that: comprise motor (1) and secondary gear (6), wherein the output shaft of motor (1) is coaxially connected with worm screw (2) end, this worm and wheel (3) engages, and worm gear is solidly set on worm-wheel shaft (4), and coaxial sleeve is equipped with an one-level gear (5) on this worm-wheel shaft; Described secondary gear (6) engages with one-level gear (5), this secondary gear and controllable capacity pump swash plate (7) are coaxially solidly set on gear wheel shaft (8), and the two ends of worm screw (2), worm-wheel shaft (4) and gear wheel shaft (8) respectively by bearings on housing.
Adopt above technical scheme, this actuating unit drives controllable capacity pump swash plate (7) by motor, worm and gear and gear, because the transmission of motor, worm and gear and gear is fixed, reliably, error is less, so just can the aperture of control variable pump swash plate (7) effectively, and allow controllable capacity pump swash plate (7) return meta, so just can overcome traditional drawing cable mechanism well can not make controllable capacity pump swash plate effectively return the defect of meta, and this actuating unit is automatically controlled, manual control need not be needed as original.
As optimal design, spy is installed with a controllable capacity pump swash plate positions sensor (9) in the end of described worm-wheel shaft (4), during use, the detection signal of this controllable capacity pump swash plate positions sensor is fed back to control system, to control, to adjust the aperture of controllable capacity pump swash plate (7) further.
As preferably, described one-level gear (5) and secondary gear (6) are quadrant gear.Adopt said structure, under the prerequisite meeting transmission requirement, can one-level gear (5) and secondary gear (6) be done smaller, thus be convenient to arrange.
Beneficial effect: this actuating unit passes through motor, worm and gear and gear drive controllable capacity pump swash plate (7), due to motor, the transmission of worm and gear and gear is fixed, reliably, error is less, so just can the aperture of control variable pump swash plate (7) effectively, and allow controllable capacity pump swash plate (7) return meta, so just can overcome traditional drawing cable mechanism well can not make controllable capacity pump swash plate effectively return the defect of meta, and this actuating unit is automatically controlled, manual control need not be needed as original, so just overcome the defect of conventional confguration well, and structure of the present invention is simple, easy to implement, there is good practicality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the lateral plan of Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, 2, a kind of actuating unit of differential steering control setup, is formed primarily of motor 1, worm screw 2, worm gear 3, worm-wheel shaft 4, one-level gear 5, secondary gear 6, controllable capacity pump swash plate 7, gear wheel shaft 8 and controllable capacity pump swash plate positions sensor 9.Wherein, the output shaft of motor 1 is coaxially connected with worm screw 2 end, and this worm screw 2 often engages with worm gear 3, and worm gear 3 is solidly set on worm-wheel shaft 4, and certain worm gear 3 also can be made of one structure with worm-wheel shaft 4.On worm-wheel shaft 4, coaxial sleeve is equipped with an one-level gear 5, and this one-level gear 5 often engages with secondary gear 6, and one-level gear 5 and secondary gear 6 are quadrant gear, and secondary gear 6 and controllable capacity pump swash plate 7 are coaxially solidly set on gear wheel shaft 8.And, the two ends of worm screw 2, worm-wheel shaft 4 and gear wheel shaft 8 respectively by bearings on housing (not shown in FIG.), and the end of worm-wheel shaft 4 is installed with the controllable capacity pump swash plate positions sensor 9 of an outsourcing, this controllable capacity pump swash plate positions sensor 9 is for the aperture of detection variable pump swash plate.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the actuating unit of a differential steering control setup, it is characterized in that: comprise motor (1) and secondary gear (6), wherein the output shaft of motor (1) is coaxially connected with worm screw (2) end, this worm and wheel (3) engages, and worm gear is solidly set on worm-wheel shaft (4), and coaxial sleeve is equipped with an one-level gear (5) on this worm-wheel shaft; Described secondary gear (6) engages with one-level gear (5), this secondary gear and controllable capacity pump swash plate (7) are coaxially solidly set on gear wheel shaft (8), and the two ends of worm screw (2), worm-wheel shaft (4) and gear wheel shaft (8) respectively by bearings on housing.
2. the actuating unit of differential steering control setup according to claim 1, is characterized in that: the end of described worm-wheel shaft (4) is installed with a controllable capacity pump swash plate positions sensor (9).
3. the actuating unit of differential steering control setup according to claim 1 or 2, is characterized in that: described one-level gear (5) and secondary gear (6) are quadrant gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410479669.3A CN104260778A (en) | 2014-09-19 | 2014-09-19 | Actuator of differential steering control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410479669.3A CN104260778A (en) | 2014-09-19 | 2014-09-19 | Actuator of differential steering control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104260778A true CN104260778A (en) | 2015-01-07 |
Family
ID=52152413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410479669.3A Pending CN104260778A (en) | 2014-09-19 | 2014-09-19 | Actuator of differential steering control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104260778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116022232A (en) * | 2023-01-19 | 2023-04-28 | 杭州电子科技大学 | A kind of EPS steering gear adopting roller worm gear transmission |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020121400A1 (en) * | 2001-03-05 | 2002-09-05 | Koyo Seiko Co., Ltd. | Steering device |
| EP2085292A1 (en) * | 2006-11-13 | 2009-08-05 | JTEKT Corporation | Vehicle steering device |
| CN202038360U (en) * | 2010-12-20 | 2011-11-16 | 西安航天远征流体控制股份有限公司 | Electric power-assisted steering transmission mechanism and electric power-assisted steering mechanism |
| CN204055954U (en) * | 2014-09-19 | 2014-12-31 | 中国嘉陵工业股份有限公司（集团） | The actuating unit of differential steering control setup |
-
2014
- 2014-09-19 CN CN201410479669.3A patent/CN104260778A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020121400A1 (en) * | 2001-03-05 | 2002-09-05 | Koyo Seiko Co., Ltd. | Steering device |
| EP2085292A1 (en) * | 2006-11-13 | 2009-08-05 | JTEKT Corporation | Vehicle steering device |
| CN202038360U (en) * | 2010-12-20 | 2011-11-16 | 西安航天远征流体控制股份有限公司 | Electric power-assisted steering transmission mechanism and electric power-assisted steering mechanism |
| CN204055954U (en) * | 2014-09-19 | 2014-12-31 | 中国嘉陵工业股份有限公司（集团） | The actuating unit of differential steering control setup |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116022232A (en) * | 2023-01-19 | 2023-04-28 | 杭州电子科技大学 | A kind of EPS steering gear adopting roller worm gear transmission |
| CN116022232B (en) * | 2023-01-19 | 2024-08-02 | 杭州电子科技大学 | EPS steering gear adopting roller worm gear transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170113 Address after: 111 No. 402760 Chongqing District of Bishan city streets Yongjia Bi Springs Road Applicant after: Chongqing Jialing global motor vehicle Co. Ltd. Address before: 402760 Yongjia Road, Bishan, No. 111, Chongqing Applicant before: China Jialing Industry Co., Ltd. (Group) |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150107 |