CN209956053U - Telescopic steering wheel - Google Patents
Telescopic steering wheel Download PDFInfo
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- CN209956053U CN209956053U CN201920549297.5U CN201920549297U CN209956053U CN 209956053 U CN209956053 U CN 209956053U CN 201920549297 U CN201920549297 U CN 201920549297U CN 209956053 U CN209956053 U CN 209956053U
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Abstract
The utility model discloses a retractable steering wheel, include: the automobile front support and the sliding rail are fixedly arranged on the automobile front support; the road sensing motor is slidably arranged in the slide rail; one end of the steering shaft is coaxially and fixedly connected with an output shaft of the road sensing motor, and the middle part of the steering shaft is provided with a boss; the outer part of the steering sleeve is fixed on the front support of the automobile, and the center of the steering sleeve is sleeved outside the steering shaft; the steering wheel is coaxially and fixedly connected to the other end of the steering shaft; the two hydraulic cylinders are respectively sleeved outside the steering shaft, fixedly connected with the steering sleeve and positioned on two sides of the boss; the hydraulic cylinder is provided with an oil outlet and an oil inlet; two pistons which are respectively and symmetrically arranged in the hydraulic cylinder, and one end of each piston is abutted against the boss; the oil tank is provided with an inlet and an outlet, the inlet is communicated with the oil outlet, and the outlet is communicated with the oil inlet. The utility model discloses can adjust the flexible of realizing the steering wheel of steering spindle through the oil pressure control of pneumatic cylinder.
Description
Technical Field
The utility model relates to the field of automobiles, especially, relate to a retractable steering wheel.
Background
The automobile is a 'machine changing the world' and a wheel promoting social progress, and the automobile becomes an indispensable important component in our daily life. The common use of the automobile changes the economic and social structure, forms a whole set of new economic, cultural and living system, improves the quality of life of people, promotes social progress and promotes economic development. The time is saved, the working efficiency is improved, the tour is facilitated, the life can be enriched, and the development of economy is increased. Compared with other vehicles, the automobile has the characteristics of 'long-distance difference benefit', 'time difference benefit' and 'poor transportation quality benefit', and is widely used.
The steering wheel plays an extremely important role in the steering of the vehicle and is an important component of the steering system of the vehicle. On one hand, the force of a driver acting on the edge of the steering wheel is transmitted to the wheels through a series of structures, so that the wheels generate moment around the main pin to steer the vehicle, and the force required by the driver to steer the vehicle is reduced; on the other hand, the road condition can be fed back to the driver, so that the driver can know the driving road condition conveniently, and the interaction degree between the driver and the road is increased. With the continuous progress of the times, automobile products are changing day by day, people put forward higher and higher requirements on automobiles, and when the automobiles are purchased, the automobiles are expected to have higher power performance and economic performance and higher comfort level, wherein the size of the space in the automobiles is an extremely important factor influencing the purchase of customers. The utility model provides a steering wheel structure that can stretch out and draw back for on steer-by-wire vehicle can effectively improve the utilization ratio of car inner space, increases the comfort level when taking.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve present technical weak point, provide a retractable steering wheel, can adjust the flexible of realizing the steering wheel of the flexible of steering spindle through the oil pressure control of pneumatic cylinder.
The utility model provides a technical scheme does: a retractable steering wheel, comprising:
an automobile front support, and
the sliding rail is fixedly arranged on the automobile front bracket;
the road sensing motor is arranged in the sliding rail in a sliding way;
one end of the steering shaft is coaxially and fixedly connected with an output shaft of the road sensing motor, and the middle part of the steering shaft is provided with a boss;
the outer part of the steering sleeve is fixed on the automobile front support, and the center of the steering sleeve is sleeved outside the steering shaft;
the steering wheel is coaxially and fixedly connected to the other end of the steering shaft;
the two hydraulic cylinders are respectively sleeved outside the steering shaft, fixedly connected with the steering sleeve and positioned on two sides of the boss; the hydraulic cylinder is provided with an oil outlet and an oil inlet;
two pistons which are respectively arranged in the two hydraulic cylinders and are symmetrically arranged, and one opposite ends of the pistons abut against the lug boss;
the oil tank is provided with an inlet and an outlet, the inlet is communicated with the oil outlet, and the outlet is communicated with the oil inlet.
Preferably, the method further comprises the following steps:
the two annular grooves are symmetrically arranged on the surfaces of two sides of the boss;
two thrust ball bearings respectively arranged in the annular grooves;
wherein the piston abuts against the thrust ball bearing.
It is preferable that the first and second liquid crystal layers are formed of,
oil pipes are arranged between the inlet and the oil outlet and between the outlet and the oil inlet.
Preferably, the method further comprises the following steps:
and the oil pump is arranged in the middle of the oil pipe.
It is preferable that the first and second liquid crystal layers are formed of,
and a sealing ring is arranged on the contact surface of the other end of the piston and the hydraulic cylinder.
Preferably, the method further comprises the following steps:
the two steering bearings are sleeved outside the steering shaft in a sliding manner;
and two ends of the steering shaft sleeve are respectively fixed on the steering bearing.
Preferably, the method further comprises the following steps:
and the output shaft of the road sensing motor is connected with the steering shaft through a coupler.
It is preferable that the first and second liquid crystal layers are formed of,
and the oil inlet and the oil outlet are respectively provided with an electronic switch.
Preferably, the method further comprises the following steps:
and the vehicle control unit is connected with the electronic switch and the oil pump.
Beneficial effect: the utility model provides a retractable steering wheel can adjust the flexible of realizing the steering wheel of the flexible of steering spindle through the oil pressure control of pneumatic cylinder.
Drawings
Fig. 1 is an overall structure diagram of the retractable steering wheel of the present invention.
Fig. 2 is an enlarged view of the boss of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1, the retractable steering wheel of the present invention comprises: the automobile front support 100 is connected with the automobile body through bolts. The front support of the automobile is fixedly provided with a slide rail 110, the slide rail 110 is provided with a road sensing motor 120 in a matching way, and the road sensing motor 129 can slide along the slide rail 110. One end of the steering shaft 130 is coaxially and fixedly connected with an output shaft of the road sensing motor 129, and the road sensing motor 129 can be driven to move along the sliding rail 110 by the up-down stretching of the steering shaft 130. The steering shaft 130 has a boss at the middle thereof. The other end of the steering shaft 130 is splined to a steering wheel 140. The outer part of the steering sleeve 150 is fixed on the automobile front support 100, and the center of the steering sleeve is sleeved outside the steering shaft 130; two hydraulic cylinders (an upper hydraulic cylinder 160 and a lower hydraulic cylinder 170) are respectively sleeved outside the steering shaft 130, fixedly connected with the steering sleeve 150 and positioned on two sides of the boss; the steering shaft passes through a through hole at the central part of the hydraulic cylinder. The hydraulic cylinders (upper and lower cylinders 160 and 170) have oil outlets (164 and 174) and oil inlets (163 and 173). Two pistons (an upper piston 161 and a lower piston 171) which are respectively symmetrically arranged in the hydraulic cylinder, and one end of each piston abuts against the boss; the oil tank 180 has an inlet communicating with the oil outlet (164 and 174) and an outlet communicating with the oil inlet (163 and 173).
In another embodiment, annular grooves are provided on both side surfaces of the boss, and two thrust ball bearings 132 are respectively provided in the annular grooves, and the two sets of thrust ball bearings clamp the boss in the middle of the steering shaft. The pistons (upper piston 161 and lower piston 171) respectively abut against the outer side surfaces of the thrust ball bearings 132.
In another embodiment, oil pipes are provided between the inlet and the oil outlet (upper oil outlet 164 and lower oil outlet 174) and between the outlet and the oil inlet (upper oil inlet 163 and lower oil inlet 173).
In another embodiment, oil pumps (an upper oil pump 181 and a lower oil pump 182) are provided in the middle of the oil pipe.
In another embodiment, sealing rings (162 and 172) are provided between the other end of the piston (upper piston 161 and lower piston 171) and the contact surface of the hydraulic cylinder (upper hydraulic cylinder 160 and lower hydraulic cylinder 170).
In another embodiment, two steering bearings 131 are slidably sleeved on the outside of the steering shaft 130, and are located at the upper end and the lower end; the upper and lower ends of the steering sleeve 150 are fixed to the steering bearings 131, respectively. The steering shaft 130 is slidable up and down relative to the steering boss 150.
In another embodiment, the output shaft of the road-sensing motor 120 is coupled to the steering shaft 130 through a coupling.
In another embodiment, the upper oil outlet 164, the upper oil inlet 163, the lower oil outlet 174, and the lower oil inlet 173 are respectively provided with an electronic switch (a first electronic switch 165, a second electronic switch 166, a third electronic switch 175, and a fourth electronic switch 176). The third electronic switch is provided with a pressure sensor, and when the pressure detected by the pressure sensor reaches a certain value, the third electronic switch is triggered to be turned on.
In another embodiment, the vehicle control unit 190 is connected to the electronic switch and the oil pump through a weak current.
In actual operation, when the steering wheel 140 is normally steered, the steering shaft 130 rotates, and the thrust ball bearing 132 rotates, so that the upper piston 161 and the lower piston 171 do not rotate along with the steering shaft 130, the resistance in steering is reduced, the service life of the pistons is prolonged, and the sealing degree of hydraulic oil is improved.
When the vehicle control unit 190 receives a steering wheel retracting instruction, that is, the steering wheel 140 starts to retract, the vehicle control unit 190 sends a signal through weak current to control the second electronic switch 166 to be opened, the first electronic switch 165 to be closed, the fourth electronic switch 176 to be closed, and the upper oil pump 181 operates to pump hydraulic oil from the oil tank 180 into the upper hydraulic cylinder 160 through the upper oil inlet 163. In order to prevent the imbalance of the retracting speed of the steering wheel by considering the hand force of the driver acting on the steering wheel and the self-weight of the components such as the steering wheel 140, the road-sensing motor 110, etc., the third electronic switch 175 should have a pressure sensor and be turned on after the pressure of the lower hydraulic cylinder 170 reaches 1MPa, and the hydraulic oil in the lower hydraulic cylinder 170 flows into the lower oil tank 180 through the lower oil outlet 174. At this time, the upper piston 161 moves downward and steadily under the action of about 10KN of pressure, so as to drive the boss in the middle of the steering shaft 130 to drive the steering shaft 130 to move downward relative to the steering sleeve 150, thereby driving the road sensor motor 110 to move downward along the guide rail 110, and further achieving the purpose of retracting the steering wheel 1. When the upper hydraulic cylinder 160 is pumped into the cylinder body with the length of 3dm3And 3dm in the lower hydraulic cylinder 1703After the hydraulic oil completely flows into the lower oil tank 180 through the lower oil outlet 174, the vehicle control unit 190 sends a signal to control the upper oil pump 181 to stop working, all the electronic switches are closed, the steering wheel 140 reaches the retraction limit, and the steering wheel can be retracted by about 30 cm.
When the vehicle control unit 190 receives the steering wheel extending instruction, that is, the steering wheel 140 begins to extend, the vehicle control unit 190 passes the weak currentThe signals are sent to control the first electronic switch 165 and the fourth electronic switch 176 to be turned on, and the second electronic switch 166 and the third electronic switch 175 to be turned off. The lower oil pump 182 operates to pump hydraulic oil from the oil tank 180 into the lower hydraulic cylinder 170 through the oil inlet 173. The hydraulic oil in the upper hydraulic cylinder 160 flows into the oil tank 180 through the oil outlet 164. At this time, the lower piston 171 moves upward under the action of about 10KN of pressure, and drives the boss at the middle of the steering shaft 130 to drive the steering shaft 130 to move upward relative to the steering sleeve 150, so as to drive the road sensor motor 110 to move upward along the guide rail 110, thereby achieving the purpose of extending the steering wheel 1. 3dm is pumped into the lower hydraulic cylinder 1703Hydraulic oil, and 3dm in the upper hydraulic cylinder 1603After the hydraulic oil completely flows into the lower oil tank 180 through the oil outlet 164, the vehicle control unit 190 sends a signal to control the lower oil pump 182 to stop working, all the electronic switches are closed, and the steering wheel 140 reaches the extension limit and can extend out by about 30 cm.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. A retractable steering wheel, comprising:
an automobile front support, and
the sliding rail is fixedly arranged on the automobile front bracket;
the road sensing motor is arranged in the sliding rail in a sliding way;
one end of the steering shaft is coaxially and fixedly connected with an output shaft of the road sensing motor, and the middle part of the steering shaft is provided with a boss;
the outer part of the steering sleeve is fixed on the automobile front support, and the center of the steering sleeve is sleeved outside the steering shaft;
the steering wheel is coaxially and fixedly connected to the other end of the steering shaft;
the two hydraulic cylinders are respectively sleeved outside the steering shaft, fixedly connected with the steering sleeve and positioned on two sides of the boss; the hydraulic cylinder is provided with an oil outlet and an oil inlet;
two pistons which are respectively arranged in the two hydraulic cylinders and are symmetrically arranged, and one opposite ends of the pistons abut against the lug boss;
the oil tank is provided with an inlet and an outlet, the inlet is communicated with the oil outlet, and the outlet is communicated with the oil inlet.
2. The retractable steering wheel according to claim 1, further comprising:
the two annular grooves are symmetrically arranged on the surfaces of two sides of the boss;
two thrust ball bearings respectively arranged in the annular grooves;
wherein the piston abuts against the thrust ball bearing.
3. Telescopic steering wheel according to claim 2,
oil pipes are arranged between the inlet and the oil outlet and between the outlet and the oil inlet.
4. The retractable steering wheel according to claim 3, further comprising:
and the oil pump is arranged in the middle of the oil pipe.
5. Telescopic steering wheel according to claim 3,
and a sealing ring is arranged on the contact surface of the other end of the piston and the hydraulic cylinder.
6. The retractable steering wheel according to claim 5, further comprising:
the two steering bearings are sleeved outside the steering shaft in a sliding manner;
wherein, the both ends of steering shaft sleeve are fixed respectively on steering bearing.
7. The retractable steering wheel according to claim 6, further comprising:
and the output shaft of the road sensing motor is connected with the steering shaft through a coupler.
8. Telescopic steering wheel according to claim 4,
and the oil inlet and the oil outlet are respectively provided with an electronic switch.
9. The retractable steering wheel according to claim 8, further comprising:
and the vehicle control unit is connected with the electronic switch and the oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549297.5U CN209956053U (en) | 2019-04-22 | 2019-04-22 | Telescopic steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549297.5U CN209956053U (en) | 2019-04-22 | 2019-04-22 | Telescopic steering wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209956053U true CN209956053U (en) | 2020-01-17 |
Family
ID=69243099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920549297.5U Active CN209956053U (en) | 2019-04-22 | 2019-04-22 | Telescopic steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209956053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001744A (en) * | 2019-04-22 | 2019-07-12 | 吉林大学 | A kind of extension type steering wheel and its control method |
-
2019
- 2019-04-22 CN CN201920549297.5U patent/CN209956053U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001744A (en) * | 2019-04-22 | 2019-07-12 | 吉林大学 | A kind of extension type steering wheel and its control method |
| CN110001744B (en) * | 2019-04-22 | 2023-09-08 | 吉林大学 | Telescopic steering wheel and control method thereof |
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