CN210391301U - A rear wheel steering lock switching device - Google Patents
A rear wheel steering lock switching device Download PDFInfo
- Publication number
- CN210391301U CN210391301U CN201921422950.8U CN201921422950U CN210391301U CN 210391301 U CN210391301 U CN 210391301U CN 201921422950 U CN201921422950 U CN 201921422950U CN 210391301 U CN210391301 U CN 210391301U
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- Prior art keywords
- steering
- rear wheel
- rod
- locking
- switching device
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- 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.)
- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Power Steering Mechanism (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
本实用新型公开了一种后轮转向锁止切换装置，包括回正电机和对称安装在车架上且结构完全相同的两组转向机构，回正电机与外设的控制器相连，两组转向机构均与回正电机相连、并分别作用于左后轮和右后轮；转向机构包括依次相连的电磁离合器、回正齿轮、锁止拉杆、前束杆、第一转向节臂和第二转向节臂，搭接在锁止拉杆表面的电磁铁，均与第一转向节臂一端和第二转向节臂一端相连的转向主销，均安装在车架上的上横臂和下横臂，以及用于检测后轮转角并位于锁止拉杆上的锁止拉杆位移传感器；电磁离合器与回正电机相连、并与外设的控制器相连，锁止拉杆通过杆面齿条与回正齿轮相连。可对后轮在回正锁止或解除锁止模式之间进行切换，实现不同转向需求。
The utility model discloses a rear wheel steering locking switching device, which comprises a realigning motor and two sets of steering mechanisms which are symmetrically mounted on a vehicle frame and have the same structure. The mechanisms are all connected with the return motor and act on the left rear wheel and the right rear wheel respectively; the steering mechanism includes an electromagnetic clutch, a return gear, a locking rod, a toe-in rod, a first steering knuckle arm and a second steering that are connected in sequence. The knuckle arm, the electromagnet lapped on the surface of the locking rod, and the steering kingpin connected with one end of the first steering knuckle arm and one end of the second steering knuckle arm, are installed on the upper and lower transverse arms of the frame, And the lock rod displacement sensor used to detect the rotation angle of the rear wheel and located on the lock rod; the electromagnetic clutch is connected with the return motor and with the peripheral controller, and the lock rod is connected with the return gear through the rod surface rack . The rear wheels can be switched between back-to-back locking or unlocking modes to meet different steering requirements.
Description
Technical Field
The utility model relates to a turn to locking means, especially relate to a rear wheel turns to locking auto-change over device belongs to vehicle engineering technical field.
Background
The existing implementation scheme for rear steering locking is realized by a hydraulic system or a motor driving mode. When the rear wheel is not required to be steered, the hydraulic control system is started, so that the ejector rod abuts against the wheel to make the wheel incapable of steering, or the motor rotates to drive the ejector rod to abut against the wheel to make the wheel incapable of steering. Among them, the hydraulic control has disadvantages that the response speed is slow and the liquid characteristics are affected by the environment. For the motor driving mode, aiming at different suspension mechanisms, a large number of mechanical mechanisms can be generated through motor driving, so that the mechanism is complex.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at overcomes not enough among the prior art, provides a rear wheel steering locking auto-change over device, and not only required mechanism is less, still realizes easily.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a rear wheel steering locking switching device comprises a return motor and two groups of steering mechanisms which are symmetrically arranged on a frame and have the same structure, wherein the return motor is connected with an external controller, and the two groups of steering mechanisms are connected with the return motor and respectively act on a left rear wheel and a right rear wheel;
the steering mechanism comprises an electromagnetic clutch, a return spur gear, a locking pull rod, a front binding rod, a first steering knuckle arm and a second steering knuckle arm which are sequentially connected, an electromagnet which is lapped on the surface of the locking pull rod and is arranged on the frame, steering main pins which are connected with one end of the first steering knuckle arm and one end of the second steering knuckle arm, an upper cross arm and a lower cross arm which are arranged on the frame, and a locking pull rod displacement sensor which is used for detecting the angle of a rear wheel and is arranged on the locking pull rod;
the electromagnetic clutch is connected with a back positive motor and an external controller, the locking pull rod is connected with a back spur gear through a rod face rack, the locking pull rod and the toe rod, the toe rod and the first steering knuckle arm are hinged, and two ends of the steering main pin are respectively hinged with the upper cross arm and the lower cross arm;
the electromagnet is connected with an external controller and used for generating suction force after being electrified to be sucked on the locking pull rod so as to lock the locking pull rod on the frame;
the locking pull rod displacement sensor is used for detecting the displacement parameter between the locking pull rod and the frame in real time and feeding back the displacement parameter to an external controller.
The utility model discloses further set up to: the positive returning motor is provided with a speed reducer.
The utility model discloses further set up to: the locking pull rod is connected with the toe-in rod through a spherical hinge.
The utility model discloses further set up to: the front beam rod is connected with the first steering knuckle arm through a spherical hinge.
The utility model discloses further set up to: the upper cross arm and the lower cross arm are welded on the frame.
The utility model discloses further set up to: the electromagnet is arranged on the frame through a connecting rod.
The utility model discloses further set up to: the connecting rod is welded on the frame.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
the rear wheel steering locking switching device provided by the utility model has simple structure and is easy to realize; when the peripheral controller steers the front wheels, the rear wheels can be locked by driving the positive electricity returning motor to finish the steering of the front wheels; when the peripheral controller is used for four-wheel steering, the locking of the rear wheels can be released by driving the positive motor, so that the independent steering of the front wheels and the rear wheels is completed. Through the implementation of the switching device, the rear wheels can be switched between the return-to-normal locking mode or the unlocking mode, so that different steering control requirements are met. The utility model discloses a switching device, on can wide application in-wheel motor drive and wheel limit motor drive electric automobile, the suitability is strong.
The foregoing is only an outline of the technical solutions of the present invention, and the present invention will be further described with reference to the accompanying drawings for clearer understanding of the technical means of the present invention.
Drawings
Fig. 1 is the utility model discloses rear wheel steering locking auto-change over device's schematic structure view.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides a rear wheel steering locking switching device, as shown in figure 1, comprising a return motor 1 and two groups of steering mechanisms which are symmetrically arranged on a frame 2 and have the same structure, wherein the return motor 1 is connected with an external controller (not shown in the figure), and the two groups of steering mechanisms are connected with the return motor 1 and respectively act on a left rear wheel 3 and a right rear wheel 30; wherein the back-positive motor 1 is preferably a motor with a speed reducer.
The steering mechanism comprises an electromagnetic clutch 4, a return spur gear 5, a locking pull rod 6, a toe-in rod 7, a first knuckle arm 8, a second knuckle arm 9, an electromagnet 10, a steering main pin 11, an upper cross arm 12 and a lower cross arm 13, and a locking pull rod displacement sensor 14, wherein the electromagnetic clutch 4, the return spur gear 5, the locking pull rod 6, the toe-in rod 7, the first knuckle arm 8 and the second knuckle arm 9 are sequentially connected; the upper cross arm 12 and the lower cross arm 13 are welded on the frame 2, the electromagnet 10 is installed on the frame 2 through a connecting rod 15, and the connecting rod 15 is welded on the frame 2 and is connected stably.
The electromagnetic clutch 4 is connected with the positive electricity returning motor 1 and an external controller, the locking pull rod 6 is connected with the positive electricity returning motor 1 through a rod face rack, the locking pull rod 6 and the toe rod 7 are hinged, the toe rod 7 and the first steering knuckle arm 8 are hinged, and two ends of the steering main pin 11 are hinged with the upper cross arm 12 and the lower cross arm 13 respectively; as shown in fig. 1, the locking tie rod 6 and the toe-in rod 7, and the toe-in rod 7 and the first knuckle arm 8 are connected by a ball joint 16.
The electromagnet 10 is connected with an external controller and is used for generating suction force after being electrified to be sucked on the locking pull rod 6 so as to lock the locking pull rod 6 on the frame 2; the locking pull rod displacement sensor 14 is used for detecting the displacement parameter between the locking pull rod 6 and the frame in real time and feeding back the displacement parameter to an external controller.
The specific using process is as follows:
a driver selects front wheel steering or four-wheel steering through a selection switch arranged on the automobile, and a controller acquires rear wheel steering angle signals acquired by a locking pull rod displacement sensor arranged on a locking pull rod and driving speed signals acquired by an automobile on-board speed sensor.
When the driver selects the front wheel steering, the controller receives a driver command to start to execute rear wheel steering locking, and the controller judges whether the rear wheels return to the right or not according to the rear wheel steering signal.
If the controller detects that the rear wheel has returned to the right position, the controller controls the electromagnet next to the locking pull rod to be electrified, so that the locking pull rod is fixed and the rear wheel can not turn.
If the controller detects that the rear wheel is not aligned, the controller controls the electromagnetic clutch to connect the aligning motor with the speed reducer with the aligning gear, the aligning motor is electrified, power is transmitted to the aligning gear through the electromagnetic clutch, the aligning gear is matched with the rack on one end of the locking pull rod, and the aligning gear drives the locking pull rod to move to a specified position to align the rear wheel; after the rear wheel is aligned, the controller controls the positive motor and the electromagnetic clutch to be powered off, the controller controls the electromagnet close to the locking pull rod to be powered on, so that the locking pull rod is fixed, and the rear wheel cannot be steered and is locked.
When the driver selects four-wheel steering, the controller receives a driver command to start releasing the rear wheel steering locking, the controller cuts off the power of the electromagnet, then the locking pull rod can move on the gear, the rear wheel can steer, and four-wheel steering can be achieved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921422950.8U CN210391301U (en) | 2019-08-29 | 2019-08-29 | A rear wheel steering lock switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921422950.8U CN210391301U (en) | 2019-08-29 | 2019-08-29 | A rear wheel steering lock switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210391301U true CN210391301U (en) | 2020-04-24 |
Family
ID=70341512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921422950.8U Expired - Fee Related CN210391301U (en) | 2019-08-29 | 2019-08-29 | A rear wheel steering lock switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210391301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023004931A1 (en) * | 2021-07-29 | 2023-02-02 | 松灵机器人(深圳)有限公司 | Multi-modal switchable trolley |
-
2019
- 2019-08-29 CN CN201921422950.8U patent/CN210391301U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023004931A1 (en) * | 2021-07-29 | 2023-02-02 | 松灵机器人(深圳)有限公司 | Multi-modal switchable trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210507 Address after: 810b, building B, building 4, Nanjing Baixia high tech Industrial Park, No.6 Yongzhi Road, Qinhuai District, Nanjing City, Jiangsu Province, 210000 Patentee after: Nanjing kulinmei Electromechanical Technology Co.,Ltd. Address before: Longpan road Xuanwu District of Nanjing city of Jiangsu Province, No. 159 210037 Patentee before: NANJING FORESTRY University |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 Termination date: 20210829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |