CN220163764U - Automobile electric pedal driving system - Google Patents
Automobile electric pedal driving system Download PDFInfo
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- CN220163764U CN220163764U CN202321953296.XU CN202321953296U CN220163764U CN 220163764 U CN220163764 U CN 220163764U CN 202321953296 U CN202321953296 U CN 202321953296U CN 220163764 U CN220163764 U CN 220163764U
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Abstract
The electric pedal driving system of the car, relate to the technical field of the vehicle, including power unit and telescopic machanism, the said power unit includes motor and reduction gear box, the reduction gear box includes gear box body and power take off, the telescopic machanism includes the main drive shaft of telescopic machanism; and a self-locking mechanism is connected between the power output piece of the reduction gear box and the telescopic mechanism main driving shaft. The torque force output by the reduction gear box is not directly transmitted to the driving shaft of the telescopic mechanism, but is firstly transmitted to the driving disc of the self-locking mechanism, and then the driving disc of the self-locking mechanism transmits the power to the driving shaft of the telescopic mechanism. The reverse thrust of the pedal and the telescopic mechanism is transmitted to the self-locking mechanism, blocked by the self-locking mechanism, and the gear box and the gear transmission part are isolated and protected relative to the reverse thrust torque. And the reduction gear box does not need to be self-locking.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a structure of an intelligent electric pedal.
Background
The electric pedal is an automobile electric pedal capable of automatically extending and retracting, and is mainly used for vehicles with higher chassis such as commercial vehicles, off-road vehicles, SUVs, pick-up cards and the like. The intelligent electric pedal is convenient and fast to serve up and down of a high-chassis automobile, and is commonly called as an intelligent electric pedal. When the vehicle door is opened, the electric pedal plate automatically stretches out, and the pedal plate stops when running to the limit position; when the vehicle door is closed, the electric pedal is automatically retracted, and the pedal is retracted to the vehicle bottom. The electric pedal can bring convenience to users to get on or off, especially for females and children; after the electric pedal is installed, the whole vehicle model is more attractive and coordinated; and compared with a fixed pedal, the pedal can not reduce the trafficability of the vehicle body.
Basic construction of the electric pedal:
the electric pedal consists of pedal, telescopic mechanism, motor assembly, controller, control wire harness, magnetic control module, installing accessories, etc.
1. A power unit. The power unit comprises a motor and a reduction gear box.
This is the brain of the whole pedal, driving the telescopic mechanism, controlling the extension and retraction of the pedal.
2. Pedal plate
The pedal is generally made of aluminum alloy materials, the lowest bearing capacity is up to 200KG, and basically the bearing capacity of the pedal is above 300 KG. The anti-skid particles and the special pattern layer are added on the surface of the pedal, so that the performance of the pedal can be greatly improved, and the user experience is optimized.
3. Telescopic mechanism
The telescopic mechanism of the electric pedal mainly comprises four connecting rods, six connecting rods and the like.
4. Control system
Mainly has OBD interface, wired magnetic control and wireless magnetic control for connecting automobile.
Defects of prior art designs:
the working mode of the electric pedal, the vehicle door is opened, the electric pedal automatically stretches out, and the pedal stops when running to the limit position; the vehicle door is closed, the electric pedal is automatically retracted, and the pedal is retracted to the vehicle bottom. When the vehicle door is opened and the pedal plate stops when the pedal plate moves to the limit position, the pedal plate can be self-locked at the limit position. This self-locking is achieved automatically by means of a telescopic mechanism (in most cases a linkage). This self-locking must be reliable, but it is ensured by the telescopic mechanism itself, independently of the transmission system, motor gearbox.
The vehicle door is closed, the electric pedal is automatically retracted, and the pedal is retracted to the vehicle bottom. At this time, the transmission system needs to be self-locking, so that the pedal and the telescopic mechanism are prevented from sliding downwards under the action of gravity and driving vibration after being retracted. The thrust-back torque generated by the gravity and the driving vibration is very large, the thrust-back torque acting on the transmission system can be ten times as large as the driving torque required when the gearbox normally drives the telescopic mechanism to extend and retract ∈ -!
The existing design mainly designs the transmission mechanism to have a self-locking function, for example, a worm gear is used for transmission, even a double worm gear is used for transmission, as shown in fig. 15, and the following consequences are:
1. the efficiency of the transmission system is very low and the power of the motor needs to be very high.
2. The huge back-pushing torque is directly born by a gear transmission mechanism, such as a worm and gear mechanism, and can be generated by driving vibration, and the peak value is unstable and can be huge. For example, the driving torque required for driving the telescopic mechanism to extend and retract is 20NM, and the peak torque required for self-locking may be 200NM. This can cause damage to the gear assembly. Further generating operation noise, operation fault, reducing reliability and service life of the product.
3. In order to reliably bear the push-back torque, after the pedal is recovered, the driving mechanism has a reliable self-locking function, and the transmission mechanism, such as a worm and gear mechanism, is required to be designed to be strong, so that the strength requirement for normally driving the telescopic mechanism to extend and retract is far exceeded. Causing and large waste and also always being problematic here.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides an automobile electric pedal driving system, wherein a self-locking mechanism is added between a power output piece of a reduction gear box and a driving shaft of a telescopic mechanism. The torque output by the gear box is not directly transmitted to the driving shaft of the telescopic mechanism, but is firstly transmitted to the driving disc of the self-locking mechanism, and then the driving disc of the self-locking mechanism transmits the power to the driving shaft of the telescopic mechanism. The reverse thrust of the pedal and the telescopic mechanism is transmitted to the self-locking mechanism, blocked by the self-locking mechanism, and the gear box and the gear transmission part are isolated and protected relative to the reverse thrust torque. And the gearbox is not necessarily made self-locking.
The purpose of the utility model is realized in the following way: the automobile electric pedal driving system comprises a power unit and a telescopic mechanism, wherein the power unit comprises a motor and a reduction gear box, the reduction gear box comprises a gear box body and a power output piece, and the telescopic mechanism comprises a telescopic mechanism main driving shaft; and a self-locking mechanism is connected between the power output piece of the reduction gear box and the telescopic mechanism main driving shaft.
Preferably, the self-locking mechanism adopts one of a roller type self-locking mechanism, a ball type self-locking mechanism, a wedge type self-locking mechanism, a ratchet pawl type self-locking mechanism and a coil spring self-locking mechanism.
Preferably, the power output part of the reduction gearbox is a planet carrier or the torque output part of the last stage of any gear transmission mechanism, and the roller type self-locking mechanism comprises a self-locking mechanism power output disc, a self-locking mechanism friction brake ring and a roller; one side of the planet carrier is connected with a unlocking pin, and a plurality of shifting block openings are formed in the planet carrier along the circumferential direction; the self-locking mechanism power output disc is coaxially arranged on one side of the planet carrier, one side of the self-locking mechanism power output disc is connected with a plurality of power transmission pins, the power transmission pins are arranged in a shifting block opening, and the diameter of the shifting block opening is larger than that of the power transmission pins; a plurality of rollaway nest are arranged on the power output disc of the self-locking mechanism along the circumferential direction, the rollaway nest is wedge-shaped, the unlocking pin is arranged in the rollaway nest, a reset spring and a roller are also arranged in the rollaway nest, the roller is positioned between the reset spring and the unlocking pin, one end of the reset spring, which is far away from the roller, is connected with the large end of the rollaway nest, and the other end of the reset spring is pressed on the side surface of the roller; the power output disc of the self-locking mechanism is connected with a power output interface which is connected with the main driving shaft of the telescopic mechanism; the self-locking mechanism friction braking ring is sleeved outside the self-locking mechanism power output disc, and the self-locking mechanism friction braking ring is fixedly connected with the gear box body.
Preferably, the planet carrier is provided with a joint positioning hole, one side of the self-locking mechanism power output disc is connected with a joint positioning shaft, and the joint positioning shaft is arranged in the joint positioning hole, so that the coaxiality of the self-locking mechanism power output disc and the planet carrier is ensured.
Preferably, the wedge type self-locking mechanism comprises a wedge type self-locking mechanism power output disc, a wedge type and a wedge type friction brake ring; the power output part of the reduction gear box is a planet carrier, and the planet carrier is connected with a power output shifting block and an unlocking block; the power output disc of the wedge type self-locking mechanism is arranged on one side of the planet carrier, a shifting block hole and a wedge block opening are formed in the power output disc of the wedge type self-locking mechanism, the power output shifting block is arranged in the shifting block hole, and the wedge block and the unlocking block are both arranged in the wedge block opening; the power output disc of the wedge type self-locking mechanism is connected with a wedge type output interface which is connected with the telescopic mechanism main driving shaft; the wedge type friction braking ring is arranged outside the power output disc of the wedge type self-locking mechanism, and is fixedly connected with the gear box body.
Preferably, the ratchet pawl type self-locking mechanism comprises a ratchet wheel type self-locking mechanism power output disc and a ratchet wheel brake disc; the power output part of the reduction gear box is a planet carrier, and an unlocking cam is connected to the planet carrier; the ratchet type self-locking mechanism power output disc is arranged on one side of the planet carrier, a pawl is hinged to the ratchet type self-locking mechanism power output disc, a step is arranged on the pawl, a pawl reset spring is arranged on the step, one end of the pawl reset spring is connected with the ratchet type self-locking mechanism power output disc, and the unlocking cam is arranged on one side of the pawl; the ratchet type self-locking mechanism power output disc is connected with a ratchet type output interface which is connected with the telescopic mechanism main driving shaft; the ratchet wheel brake disc is fixedly connected with the gear box body, the ratchet wheel brake disc is provided with internal teeth, and the tip ends of pawls are arranged on the internal teeth.
The telescopic mechanism of the utility model is connected with a pedal, and the working mode is as follows:
1. when the motor rotates positively, the drive gear transmission mechanism rotates positively, the gearbox power output piece (in the example of the figure, the output stage planet carrier) drives the self-locking mechanism power output disc to rotate positively, and the self-locking mechanism power output disc transmits power to the telescopic mechanism main driving shaft, so that the pedal is retracted by the telescopic mechanism. The self-locking mechanism is opened in the direction due to unidirectional self-locking, and power can be freely transmitted. Therefore, when the power output disc of the self-locking mechanism drives the main driving shaft of the telescopic mechanism to rotate positively, the power transmission can be carried out smoothly.
2. When the motor stops working, the driving shaft loses power, and the load end generates reverse torque. At this time, the self-locking mechanism responds immediately, the locking mechanism works (taking a roller type self-locking mechanism as an example, due to the action of a reset spring, a roller is pressed to be in close contact with an inner cylindrical surface of a friction braking ring of the self-locking mechanism, when the outer ring is motionless and the inner ring is reversed, the roller is pulled to a small end of a roller path by friction force, if the inclined plane angle is smaller than the friction angle, a wedge effect is formed, and the system is locked.) at this time, a power output disc of the self-locking mechanism is locked, and reverse thrust torque transmitted from a main driving shaft of the telescopic mechanism is locked immediately. That is, the self-locking mechanism blocks the torque reversal at the load end. The driving shafts of the gear transmission mechanism are isolated, and no back-thrust torque is felt.
3. When the motor is reversed and the system needs to work reversely, the diameter of the shifting block opening is larger than that of the power transmission pin, so that when the gearbox power output piece pushes the power output disc of the self-locking mechanism to transmit power to change the rotation direction, a certain angle idle stroke exists. Due to the idle stroke, the driving shaft firstly touches the unlocking mechanism, the locking mechanism is opened, and the unlocking action is completed. Then, the power output part of the gear box transmits power to the power output disc of the self-locking mechanism, and then drives the main driving shaft of the telescopic mechanism to rotate reversely, so that power transmission is realized, and the telescopic mechanism pushes the pedal to extend.
The beneficial effects of the utility model are as follows:
a self-locking mechanism is connected between the driving shaft and the telescopic mechanism main driving shaft,
when the motor rotates positively, the driving shaft drives the driven shaft to rotate positively, and the self-locking mechanism is opened in the direction due to unidirectional self-locking, so that power can be transmitted freely, and the system function is completed.
When the motor stops working, the driving shaft loses power, and the load end generates reverse torque. At this time, the self-locking mechanism responds immediately, the locking mechanism works to lock the driven shaft immediately, and the reverse torque at the load end is blocked by the self-locking mechanism. The drive shafts are isolated and no thrust torque is felt.
When the motor rotates reversely, the driving shaft firstly touches the unlocking mechanism to open the locking mechanism, the unlocking action is completed, the driving shaft drives the driven shaft to rotate reversely, the power transmission is realized, and the specific function of the system is completed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic diagram of a roller-type self-locking mechanism;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a schematic illustration of the planet carrier of FIG. 4 removed;
FIG. 6 is a partial view of FIG. 5;
FIG. 7 is a perspective view of FIG. 6;
FIG. 8 is a schematic structural view of a planet carrier;
FIG. 9 is a perspective view of FIG. 8;
FIG. 10 is a schematic diagram of a roller-type self-locking mechanism during forward rotation of a motor;
FIG. 11 is a schematic diagram of a roller self-locking mechanism when the motor is stopped;
FIG. 12 is a schematic diagram of a roller-type self-locking mechanism in reverse rotation of a motor;
FIG. 13 is a schematic diagram of a wedge type self-locking mechanism;
FIG. 14 is a schematic view of a ratchet-pawl self-locking mechanism;
fig. 15 is a schematic diagram of a prior art structure.
In the figure, 1 a reduction gearbox, 101 a planet carrier, 102 a joint positioning hole, 103 a sun gear, 104 a planet wheel, 105 a shifting block opening, 106 a gear ring, 107 a gear box, 2 a self-locking mechanism, 201 a self-locking mechanism power output disc, 202 a joint positioning shaft, 203 a roller, 204 a power output interface, 205 a power transmission pin, 206 a self-locking mechanism friction brake ring, 207 a return spring, 208 a unlocking pin, 209 a raceway, 3 a telescopic mechanism, 301 a telescopic mechanism rack, 302 a telescopic mechanism main driving shaft, 303 a telescopic mechanism active connecting rod, 4 a wedge type self-locking mechanism, 401 a wedge type self-locking mechanism power output disc, 402 a wedge type friction brake ring, 403 a wedge type, 404 a wedge type opening, 405 a unlocking block, 406 a shifting block opening, 407 a power output shifting block, 408 a wedge type output interface, 5 a ratchet type self-locking mechanism, 501 a ratchet type self-locking mechanism power output disc, 502 a ratchet brake disc, 503 an unlocking cam, 504 a pawl, 505 a reset spring, 506 a step, 507 ratchet type output interface, 6 a motor, 7 a double-screw gearbox.
Detailed Description
Example 1
As shown in fig. 1 and 2, the automobile electric pedal driving system comprises a reduction gear box 1, a self-locking mechanism 2 and a telescopic mechanism 3.
The reduction gearbox 1 can be a two-stage planetary transmission or a three-stage planetary transmission, and can also be other gear transmission. Fig. 1 shows only the final planetary mechanism of a three-stage planetary transmission. The planetary gear mechanism comprises a planetary carrier 101, a planetary gear 104, a sun gear 103, a gear ring 106 and a gear box body 107, wherein the shaft of the sun gear 103 is connected with the planetary carrier of the planetary mechanism at the previous stage, the planetary gear 104 is arranged at one side of the planetary carrier 101, the planetary gear 104 is meshed with the sun gear 103 and is meshed with the gear ring 106, the gear ring 106 is fixed and connected in the gear box body 107, and power is output by the planetary carrier 101.
The telescopic mechanism is shown only schematically in fig. 1, and the telescopic mechanism 3 comprises a telescopic mechanism housing 301, a telescopic mechanism main drive shaft 302 and a telescopic mechanism drive link 303, the telescopic mechanism main drive shaft 302 being supported on the telescopic mechanism housing 301.
As shown in fig. 3 to 9, the self-locking mechanism 2 adopts a roller type self-locking mechanism including a self-locking mechanism power output disc 201, a self-locking mechanism friction brake ring 206 and three rollers 203.
The self-locking mechanism power output disc 201 is coaxially arranged with the planet carrier 101, the self-locking mechanism power output disc 201 is arranged on the other side of the planet carrier 101, the center of the self-locking mechanism power output disc 201 is connected with the joint positioning shaft 202, the center of the planet carrier 101 is provided with the joint positioning hole 102, and the joint positioning shaft 202 is arranged in the joint positioning hole 101, so that coaxial installation is facilitated. Three dial openings 105 are provided in the circumferential direction on the carrier 101, and three unlocking pins 208 are connected to the other side of the carrier 101.
Three power transmission pins 205 are connected to one side of the power output disc 201 of the self-locking mechanism, and the three power transmission pins 205 are respectively arranged in the corresponding shifting block openings 105 one by one, and the diameters of the shifting block openings 105 are larger than those of the power transmission pins 205. Therefore, when the planet carrier 101 pushes the power output disc 201 of the self-locking mechanism to transfer power to change the rotation direction, a certain angle idle stroke exists. Three rollaway nest 209 are arranged on the self-locking mechanism power output disc 201 along the circumferential direction, the three rollaway nest 209 is rotationally symmetrically arranged, the rollaway nest 209 is wedge-shaped, three unlocking pins 208 are respectively arranged in the corresponding rollaway nest 209 one by one, a reset spring 207 and a roller 203 are further arranged in the rollaway nest 209, the roller 203 is positioned between the reset spring 207 and the unlocking pin 208, and one end of the reset spring 207, which is far away from the roller 203, is connected with the large end of the rollaway nest 209. The self-locking mechanism power output disc 201 is connected with the power output interface 204, and the power output interface 204 is connected with the telescopic mechanism main driving shaft 302. The self-locking mechanism friction brake ring 206 is sleeved outside the self-locking mechanism power output disc 201 and is fixed with the gear box body 107.
The three working modes of the utility model are:
1. as shown in fig. 10, when the motor drives the reduction gear box 1 to rotate forward, the carrier 101 of the reduction gear box 1 drives the self-locking mechanism power output disc 201 to rotate forward, the self-locking mechanism power output disc 201 rotates forward and drives the telescopic mechanism main driving shaft 302 to rotate forward, and the telescopic mechanism 3 retracts the pedals. In this orientation, the self-locking mechanism is automatically opened. ( As shown in fig. 10, the power output disc 201 of the self-locking mechanism rotates forward, the friction braking ring 206 of the self-locking mechanism is fixed, and the roller 203 is pressed by the return spring 207 and is attached to the inner cylindrical surface of the friction braking ring 206 of the self-locking mechanism. When the self-locking mechanism power take-off disc 201 is rotated in a forward direction, friction will pull the roller 203 towards the open side of the race 209. Thus, in this direction, the self-locking mechanism is open. )
2. When the pedal is fully retracted, the motor stops, as shown in fig. 11, and the reduction gearbox 1 loses power. At this time, the pedal and the telescopic mechanism 3 generate a great reverse torque due to the gravity of the pedal and the telescopic mechanism, and the pedal is attempted to be stretched out again. This reaction torque acts directly on the self-locking mechanism power take off disc 201. In this orientation the self-locking mechanism is closed and the friction brake ring 206 blocks the reverse rotation of the power take off disc, the system achieves self-locking. The self-locking mechanism blocks the reverse thrust torque outside the reduction gear box and isolates and protects the gear parts relative to the reverse thrust torque. ( As shown in fig. 11, the power output disc 201 of the self-locking mechanism is reversed, the friction braking ring 206 of the self-locking mechanism is fixed, and the roller 203 is pressed by the return spring 207 and is attached to the inner cylindrical surface of the friction braking ring 206 of the self-locking mechanism. When the self-locking mechanism power output disc 201 is reversed, the friction generated between the roller 203 and the inner cylindrical surface of the self-locking mechanism friction brake ring 206 will pull the roller 203 to the narrow side of the raceway 209. At this time, if the bevel angle is designed to be smaller than the friction angle, a wedge effect is generated, and the mechanism immediately enters a self-locking state. )
3. As shown in fig. 12, when the motor is reversed, the carrier 101 is reversed. Since the dial opening 105 is larger than the diameter of the power transmission pin 205, there is an angular idle stroke when the carrier 101 pushes the self-locking mechanism power take-off disc 201 to change the direction of rotation. Due to the idle stroke, before the planet carrier 101 drives the power output disc 201 of the self-locking mechanism to rotate reversely, the unlocking pin 208 is utilized to unlock the self-locking mechanism (the unlocking pin 208 pushes the roller 203 to move towards the large end of the raceway 209, and the return spring 207 is in a compressed state) in advance, and then the power output disc 201 of the self-locking mechanism is driven smoothly to rotate reversely, so that the main driving shaft 302 of the telescopic mechanism is driven, and the telescopic mechanism extends out of the pedal.
Example 2
A wedge type self-locking mechanism 4 is connected between the reduction gearbox 1 and the telescopic mechanism 3, and as shown in fig. 13, the wedge type self-locking mechanism 4 includes a wedge type self-locking mechanism power output disc 401, a wedge type friction brake ring 402 and a wedge 403. Four power take-off dials 407 and four unlocking blocks 405 are connected to the carrier 101. The power output disc 401 of the wedge type self-locking mechanism is arranged on the other side of the planet carrier 101, four shifting block holes 406 and wedge block openings 404 are arranged on the power output disc 401 of the wedge type self-locking mechanism along the circumferential direction, the power output shifting block 407 is arranged in the shifting block holes 406, and the wedge block 403 and the unlocking block 405 are both arranged in the wedge block openings 404. The wedge self-locking mechanism power take off disc 401 is connected to a wedge output interface 408, the wedge output interface 408 being connected to the telescopic mechanism main drive shaft 302. The wedge type friction brake ring 402 is arranged outside the wedge type self-locking mechanism power output disc 401, and the wedge type friction brake ring 402 is fixedly connected with the gear box body 107.
Example 3
A ratchet-pawl type self-locking mechanism 5 is connected between the reduction gear box 1 and the telescopic mechanism 3, and as shown in fig. 14, the ratchet-pawl type self-locking mechanism 5 comprises a ratchet-type self-locking mechanism power output disc 501 and a ratchet brake disc 502. The ratchet type self-locking mechanism power output disc 501 is arranged on the other side of the planet carrier 101, a pawl 504 is hinged on the ratchet type self-locking mechanism power output disc 501, a step 506 is arranged on the pawl 504, a pawl return spring 505 is arranged on the step 506, and one end of the pawl return spring 505 is connected with the ratchet type self-locking mechanism power output disc 501. An unlocking cam 503 is connected to the carrier 101, and the unlocking cam 503 is provided on one side of the pawl 504. The ratchet type self-locking mechanism power output disc 501 is connected with a ratchet type output interface 507, and the ratchet type output interface 507 is connected with the telescopic mechanism main driving shaft 302. The ratchet brake disc 503 is fixedly connected with the gear housing 107, the ratchet brake disc 503 is provided with internal teeth, and tips of pawls 504 are provided on the internal teeth.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The automobile electric pedal driving system comprises a power unit and a telescopic mechanism, wherein the power unit comprises a motor and a reduction gear box, the reduction gear box comprises a gear box body and a power output piece, and the telescopic mechanism comprises a telescopic mechanism main driving shaft; the method is characterized in that: and a self-locking mechanism is connected between the power output piece of the reduction gear box and the telescopic mechanism main driving shaft.
2. The automotive electric pedal drive system according to claim 1, characterized in that: the self-locking mechanism adopts one of a roller type self-locking mechanism, a ball type self-locking mechanism, a wedge type self-locking mechanism, a ratchet pawl type self-locking mechanism and a coil spring self-locking mechanism.
3. The automotive electric pedal drive system according to claim 2, characterized in that: the power output part of the reduction gear box is a planet carrier or the torque output part of the last stage of any gear transmission mechanism, and the roller type self-locking mechanism comprises a self-locking mechanism power output disc, a self-locking mechanism friction braking ring and rollers;
one side of the planet carrier is connected with a unlocking pin, and a plurality of shifting block openings are formed in the planet carrier along the circumferential direction;
the self-locking mechanism power output disc is coaxially arranged on one side of the planet carrier, one side of the self-locking mechanism power output disc is connected with a plurality of power transmission pins, the power transmission pins are arranged in a shifting block opening, and the diameter of the shifting block opening is larger than that of the power transmission pins; a plurality of rollaway nest are arranged on the power output disc of the self-locking mechanism along the circumferential direction, the rollaway nest is wedge-shaped, the unlocking pin is arranged in the rollaway nest, a reset spring and a roller are also arranged in the rollaway nest, the roller is positioned between the reset spring and the unlocking pin, one end of the reset spring, which is far away from the roller, is connected with the large end of the rollaway nest, and the other end of the reset spring is pressed on the side surface of the roller; the power output disc of the self-locking mechanism is connected with a power output interface which is connected with the main driving shaft of the telescopic mechanism;
the self-locking mechanism friction braking ring is sleeved outside the self-locking mechanism power output disc, and the self-locking mechanism friction braking ring is fixedly connected with the gear box body.
4. An automotive electric pedal drive system in accordance with claim 3, characterized in that: the planet carrier is provided with a joint positioning hole, one side of the self-locking mechanism power output disc is connected with a joint positioning shaft, and the joint positioning shaft is arranged in the joint positioning hole, so that the coaxiality of the self-locking mechanism power output disc and the planet carrier is ensured.
5. The automotive electric pedal drive system according to claim 2, characterized in that: the wedge type self-locking mechanism comprises a power output disc of the wedge type self-locking mechanism, a wedge type and a wedge type friction brake ring;
the power output part of the reduction gear box is a planet carrier, and the planet carrier is connected with a power output shifting block and an unlocking block;
the power output disc of the wedge type self-locking mechanism is arranged on one side of the planet carrier, a shifting block hole and a wedge block opening are formed in the power output disc of the wedge type self-locking mechanism, the power output shifting block is arranged in the shifting block hole, and the wedge block and the unlocking block are both arranged in the wedge block opening; the power output disc of the wedge type self-locking mechanism is connected with a wedge type output interface which is connected with the telescopic mechanism main driving shaft;
the wedge type friction braking ring is arranged outside the power output disc of the wedge type self-locking mechanism, and is fixedly connected with the gear box body.
6. The automotive electric pedal drive system according to claim 2, characterized in that: the ratchet pawl type self-locking mechanism comprises a ratchet wheel type self-locking mechanism power output disc and a ratchet wheel brake disc;
the power output part of the reduction gear box is a planet carrier, and an unlocking cam is connected to the planet carrier;
the ratchet type self-locking mechanism power output disc is arranged on one side of the planet carrier, a pawl is hinged to the ratchet type self-locking mechanism power output disc, a step is arranged on the pawl, a pawl reset spring is arranged on the step, one end of the pawl reset spring is connected with the ratchet type self-locking mechanism power output disc, and the unlocking cam is arranged on one side of the pawl; the ratchet type self-locking mechanism power output disc is connected with a ratchet type output interface which is connected with the telescopic mechanism main driving shaft;
the ratchet wheel brake disc is fixedly connected with the gear box body, the ratchet wheel brake disc is provided with internal teeth, and the tip ends of pawls are arranged on the internal teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321953296.XU CN220163764U (en) | 2023-07-24 | 2023-07-24 | Automobile electric pedal driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321953296.XU CN220163764U (en) | 2023-07-24 | 2023-07-24 | Automobile electric pedal driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220163764U true CN220163764U (en) | 2023-12-12 |
Family
ID=89063245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321953296.XU Active CN220163764U (en) | 2023-07-24 | 2023-07-24 | Automobile electric pedal driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220163764U (en) |
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2023
- 2023-07-24 CN CN202321953296.XU patent/CN220163764U/en active Active
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