CN116877603A - Brake driving device and brake - Google Patents

Brake driving device and brake Download PDF

Info

Publication number
CN116877603A
CN116877603A CN202310633965.3A CN202310633965A CN116877603A CN 116877603 A CN116877603 A CN 116877603A CN 202310633965 A CN202310633965 A CN 202310633965A CN 116877603 A CN116877603 A CN 116877603A
Authority
CN
China
Prior art keywords
gear
motor
primary
brake
transmission
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
Application number
CN202310633965.3A
Other languages
Chinese (zh)
Inventor
陈艳业
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Huashen Ruili Automobile Technology Co ltd
Original Assignee
Shanghai Huashen Ruili Automobile Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Huashen Ruili Automobile Technology Co ltd filed Critical Shanghai Huashen Ruili Automobile Technology Co ltd
Priority to CN202310633965.3A priority Critical patent/CN116877603A/en
Publication of CN116877603A publication Critical patent/CN116877603A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • F16D65/186—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with full-face force-applying member, e.g. annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Retarders (AREA)

Abstract

The present invention relates to a brake driving device and a brake, the brake driving device includes: a motor having a motor shaft; a transmission having an output shaft; a motor shaft of the motor is connected with the transmission device and drives the output shaft to move; the output shaft is coaxially arranged with the motor shaft. According to the brake driving device, the motor shaft and the output shaft are coaxially arranged, so that the radial size of the driving device can be reduced, the design and use flexibility of the driving device can be improved, and a structural basis is provided for reducing the whole axial size of the brake. After the radial size of the driver is reduced, the axial space of the brake shell can be better utilized, the radial space of the brake shell cannot be arranged, and the driving device is more flexible to use and higher in adaptability.

Description

Brake driving device and brake
Technical Field
The present invention relates to a brake driving device and a brake.
Background
Brakes used for automobiles are braked by friction force of friction plates. The friction plate comprises an inner friction plate and an outer friction plate. Wherein, the outer friction disc is installed on the support, and the inner friction disc is installed on the casing. The bracket and the shell can move relatively, so that the inner friction plate and the outer friction plate can be linked to be close to the brake disc, and braking is realized. The brake is provided with a driving device, and the driving device drives the inner friction plate and the outer friction plate to move so as to realize braking.
In the brake driving device in the prior art, a motor shaft is connected with an output shaft through a transmission mechanism, and the motor shaft is arranged in parallel with the output shaft. The output shaft is typically disposed laterally of the motor shaft. One disadvantage of this arrangement is that the radial dimension of the drive is relatively large and it is difficult to adapt to the requirement for a reduced axial dimension of the brake. In electric vehicles, the radial dimension of the position where the brake is mounted has a large space, and the axial space is often very tight, so the development of electric vehicles requires that the dimension of the brake in the axial direction can be as small as possible. But the radial dimension is larger due to the parallel arrangement of the motor shaft and the output shaft without the possibility of improving the axial dimension. The oversizing of the drive means limits the possibilities of axial size reduction of the brake.
Disclosure of Invention
One of the objectives of the present invention is to overcome the shortcomings of the prior art and to provide a brake driving device and a brake that can be used more flexibly.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
a brake driving device, comprising:
a motor having a motor shaft;
a transmission having an output shaft;
a motor shaft of the motor is connected with the transmission device and drives the output shaft to move; the output shaft is coaxially arranged with the motor shaft.
According to one embodiment of the invention, the transmission is a torque amplifying transmission.
According to one embodiment of the invention, the torque amplifying means is at least two-stage torque amplifying means.
According to one embodiment of the invention, the transmission comprises a motor gear, a primary planetary gear and an internal gear; the motor gear is sleeved on the motor shaft, and more than three primary planetary gears are arranged, surround the motor gear and are meshed with the motor gear; the primary planetary gear is meshed with the internal gear; the primary planetary gear is directly connected or in transmission connection with the output shaft, and the diameter of the primary planetary gear is larger than that of the motor gear.
According to one embodiment of the present invention, further comprising a primary cage, the primary planet gears being mounted on the primary cage; the primary planet gear drives the primary retainer to rotate when rotating; the output shaft is directly connected or in transmission connection with the primary retainer; the inner gear is provided with a containing cavity, and the primary retainer and the primary planetary gear are both arranged in the containing cavity.
According to one embodiment of the present invention, further comprising a primary cage, a transmission gear, a secondary planetary gear, and a secondary cage; the primary retainer is connected with the primary planetary gear, and the primary planetary gear drives the primary retainer to rotate; the transmission gear is arranged on the primary retainer; the number of the secondary planet gears is more than three, and the secondary planet gears are arranged around the transmission gear and meshed with the transmission gear; the secondary planet gears are meshed with the internal gear; the diameter of the secondary planet gear is larger than that of the transmission gear, and the secondary retainer is connected with the secondary planet gear; the output shaft is connected with the secondary retainer.
According to one embodiment of the invention, the transmission gear, the secondary planet gears and the secondary retainer are all arranged in the accommodating cavity; the output shaft extends out of the accommodating cavity.
According to one embodiment of the invention, the motor further comprises a motor shell, wherein the motor shell is columnar and is provided with a groove; the groove is recessed along the axial direction from one end of the motor casing; the end part of the motor shaft is positioned in the groove.
According to one embodiment of the invention, the transmission comprises an internal gear having a cavity; the internal gear is positioned in the groove along part or all of the axial direction.
According to one embodiment of the invention, the motor control device further comprises a motor control device, wherein the motor control device comprises a subsidiary shell and an electronic control module, and the subsidiary shell is connected with the motor shell; the electronic control module is arranged in the auxiliary shell and is electrically connected with the motor.
The brake is characterized by comprising the brake driving device.
According to the brake driving device and the brake, the motor shaft and the output shaft are coaxially arranged, so that the radial size of the driving device can be reduced, the design and use flexibility of the driving device can be improved, a structural foundation is provided for reducing the whole axial size of the brake, and transmission vibration and noise are effectively reduced. After the radial size of the driver is reduced, the axial space of the brake shell can be better utilized, the radial space of the brake shell cannot be arranged, and the driving device is more flexible to use and higher in adaptability. The torque amplifying transmission device can amplify the output torque, and the miniaturized driving device can meet the use requirement. The accommodating cavity of the internal gear is used for accommodating parts such as the planetary gear and the retainer, so that the whole structure of the driving device is simpler, and the driving device can better adapt to the size design requirement.
Drawings
Fig. 1 is a schematic view of a brake driving device according to the present invention.
Fig. 2 is a cross-sectional view of a brake driving apparatus in the present invention.
Fig. 3 is a schematic diagram of a motor structure according to the present invention.
Fig. 4 is a schematic diagram of a transmission device according to the present invention.
Fig. 5 is a schematic view of the internal gear structure in the present invention.
Fig. 6 is a schematic view of a partial structure of a transmission device in the present invention.
Fig. 7 is a schematic view of another partial structure of the transmission device in the present invention.
Fig. 8 is a schematic view of another partial structure of the transmission device in the present invention.
Detailed Description
As shown in fig. 1 to 8, the brake driving device 110 includes a motor 120, a motor control device 130, and a transmission device 140. The motor control device 130 controls the operation of the motor 120. The motor 120 is operated to output torque through the transmission 140.
The motor 120 includes a motor housing 121 and a motor shaft 122. The motor casing 121 may be cylindrical or square, and is determined according to the use situation. In the example shown in the figures, the motor housing 121 is cylindrical. The motor housing 121 is provided with a recess 123. The recess 123 is recessed from one end of the motor case 121. The motor shaft 122 is located in the recess 123. In the example shown, the end of the motor shaft 122 is located within the recess 123. In this way, the motor shaft 122 does not protrude from the end of the motor case 121, reducing the size of the motor 120 in the axial direction. The motor casing 121 is provided with components for driving the motor shaft 122 to rotate, and the technology for driving the motor shaft 122 to rotate is the prior art and will not be described herein.
The motor control device 130 includes a sub-housing 131 and an electronic control module 132. The sub-housing 131 is provided with an inner cavity, and the electronic control module 132 is installed in the inner cavity. The sub-housing 131 is connected to the motor housing 121, and both are distributed in the axial direction. The electronic control module 132 is electrically connected to the motor 120. The electronic control module 132 controls the motor 120 to operate and output torque.
The transmission 140 includes an internal gear 141, a motor gear 142, a primary planetary gear 143, a primary cage 144, a transmission gear 145, a secondary planetary gear 146, a secondary cage 147, and an output shaft 148. The internal gear 141 is cylindrical and has a cavity 1411. Internal teeth 1412 are provided in the cavity 1411. The motor gear 142 is sleeved on the motor shaft 122. The motor gear 142 and the motor shaft 122 may be assembled separately or integrally, and the motor gear 142 may be machined on the motor shaft 122. The number of primary planetary gears 143 is three or more, and is disposed around the motor gear 142 and meshed with the motor gear 142. In the example shown in the figure, the number of one-stage planetary gears 143 is three. The primary planetary gears 143 are rotatably provided on three first pins 1441 of the primary holder 144 and rotatable about the first pins 1441. The primary planetary gears 143 mesh with the internal gear 141. The primary planetary gears 143 have a diameter greater than the motor gear 122. The primary retainer 144 is also provided with a second pin 1442. The second pin 1442 extends in an opposite direction from the first pin 1441. The transmission gear 145 is mounted on the second pin 1442 to rotate with the primary retainer 144. The number of the secondary planetary gears 146 is three or more, and the secondary planetary gears are disposed around the transmission gear 145 and meshed with the transmission gear 145. The secondary planet gears 146 are rotatably disposed on third pins 1471 of the secondary cage 147. The secondary planet gears 146 mesh with the inner gear 141. The diameter of the secondary planet gears 146 is larger than the diameter of the drive gear 145. The output shaft 148 is connected to the secondary cage 147. The output shaft 148 extends in an opposite direction from the third pin 1471. The output shaft 148 extends out of the cavity 1411. The output shaft 148 is disposed coaxially with the motor shaft 122, that is, the axis of the output shaft 148 is in line with the axis of the motor shaft 122.
The primary planetary gear 143, the primary cage 144, the transmission gear 145, the secondary planetary gear 146 and the secondary cage 147 are disposed in the cavity 1411 of the internal gear 141. A spacer 149 is also provided outside the primary planetary gears 143. The spacer 149 blocks the primary planet gears 143 within the pocket 1411. The motor gear 142 is meshed with the primary planetary gears 143 through a spacer 149. The inner gear 141 is axially at least partially located within the groove 123. The axial portion of the internal gear 141 is located within the recess 123 to reduce the overall axial size of the drive device.
The brake driving device can be used for driving the outer friction plate and the inner friction plate of the brake to move so as to manufacture the brake. The rest of the construction of the brake may be made using prior art techniques or may be adapted according to the construction of the brake driving device according to the invention.
According to the brake driving device and the brake, the motor shaft and the output shaft are coaxially arranged, so that the radial size of the driving device can be reduced, the design and use flexibility of the driving device can be improved, a structural foundation is provided for reducing the whole axial size of the brake, and transmission vibration and noise are effectively reduced. After the radial size of the driver is reduced, the axial space of the brake shell can be better utilized, the radial space of the brake shell cannot be arranged, and the driving device is more flexible to use and higher in adaptability. The torque amplifying transmission device can amplify the output torque, and the miniaturized driving device can meet the use requirement. The accommodating cavity of the internal gear is used for accommodating parts such as the planetary gear and the retainer, so that the whole structure of the driving device is simpler, and the driving device can better adapt to the size design requirement.
The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.

Claims (11)

1. A brake driving device, comprising:
a motor having a motor shaft;
a transmission having an output shaft;
a motor shaft of the motor is connected with the transmission device and drives the output shaft to move; the output shaft is coaxially arranged with the motor shaft.
2. The brake actuation device according to claim 1, characterized in that the transmission is a torque amplifying transmission.
3. A brake actuation device according to claim 2, characterized in that the torque amplifying means is at least a two-stage torque amplifying means.
4. The brake driving device according to claim 1, wherein the transmission device includes a motor gear, a primary planetary gear, and an internal gear; the motor gear is sleeved on the motor shaft, and more than three primary planetary gears are arranged, surround the motor gear and are meshed with the motor gear; the primary planetary gear is meshed with the internal gear; the primary planetary gear is directly connected or in transmission connection with the output shaft, and the diameter of the primary planetary gear is larger than that of the motor gear.
5. The brake actuating apparatus of claim 4, further comprising a primary cage, said primary planetary gear being mounted to said primary cage; the primary planet gear drives the primary retainer to rotate when rotating; the output shaft is directly connected or in transmission connection with the primary retainer; the inner gear is provided with a containing cavity, and the primary retainer and the primary planetary gear are both arranged in the containing cavity.
6. The brake actuating apparatus of claim 5, further comprising a primary cage, a transfer gear, a secondary planetary gear, and a secondary cage; the primary retainer is connected with the primary planetary gear, and the primary planetary gear drives the primary retainer to rotate; the transmission gear is arranged on the primary retainer; the number of the secondary planet gears is more than three, and the secondary planet gears are arranged around the transmission gear and meshed with the transmission gear; the secondary planet gears are meshed with the internal gear; the diameter of the secondary planet gear is larger than that of the transmission gear, and the secondary retainer is connected with the secondary planet gear; the output shaft is connected with the secondary retainer.
7. The brake actuating apparatus according to claim 6, wherein said transfer gear, secondary planet gear and secondary cage are all disposed within said cavity; the output shaft extends out of the accommodating cavity.
8. The brake actuating apparatus according to claim 1, wherein said motor further comprises a motor housing, said motor housing being cylindrical and provided with a recess; the groove is recessed along the axial direction from one end of the motor casing; the end part of the motor shaft is positioned in the groove.
9. The brake actuation device according to claim 8, characterized in that the transmission comprises an annulus gear having a cavity; the internal gear is positioned in the groove along part or all of the axial direction.
10. The brake actuating apparatus according to claim 8, further comprising a motor control device including a sub-housing and an electronic control module, said sub-housing being connected to said motor housing; the electronic control module is arranged in the auxiliary shell and is electrically connected with the motor.
11. Brake, characterized by comprising a brake actuating device according to any of claims 1 to 10.
CN202310633965.3A 2023-05-31 2023-05-31 Brake driving device and brake Pending CN116877603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310633965.3A CN116877603A (en) 2023-05-31 2023-05-31 Brake driving device and brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310633965.3A CN116877603A (en) 2023-05-31 2023-05-31 Brake driving device and brake

Publications (1)

Publication Number Publication Date
CN116877603A true CN116877603A (en) 2023-10-13

Family

ID=88259285

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310633965.3A Pending CN116877603A (en) 2023-05-31 2023-05-31 Brake driving device and brake

Country Status (1)

Country Link
CN (1) CN116877603A (en)

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