CN212353950U - Reversing guide mechanism for vehicle electric brake - Google Patents
Reversing guide mechanism for vehicle electric brake Download PDFInfo
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- CN212353950U CN212353950U CN202020619082.9U CN202020619082U CN212353950U CN 212353950 U CN212353950 U CN 212353950U CN 202020619082 U CN202020619082 U CN 202020619082U CN 212353950 U CN212353950 U CN 212353950U
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- reversing guide
- push rod
- switching
- reversing
- guide sleeve
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Abstract
The utility model discloses a vehicle electric brake utensils switching-over guiding mechanism, the push rod comprises a push rod, a supporting seat, switching-over guide pin bushing and switching-over guide pillar, be equipped with one end open-ended installation cavity in the supporting seat, the switching-over guide pin bushing is fixed in the installation cavity, two guide slots have been seted up on the switching-over guide pin bushing, the length direction setting of switching-over guide pin bushing is followed respectively to two guide slots, the one end at the push rod is worn to establish and fixes to the switching-over guide pillar, the both ends of switching-over guide pillar are stretched into respectively in two guide slots, the push rod sets up with two guide slots are parallel, be equipped with external screw thread portion on the push rod, external screw thread portion links. The utility model discloses on vehicle is reversing guiding mechanism for electric brake was applied to electric brake, can convert the rotary motion of brake motor output to linear motion and have the direction function, this reversing guiding mechanism simple structure, simple to operate is lower to the required precision of assembly, is fit for mass production.
Description
Technical Field
The utility model belongs to the technical field of the car braking, concretely relates to vehicle is reversing guide mechanism for electric brake.
Background
Along with the wider application scenes of the automatic driving and unmanned driving technologies, the electric brake is gradually popularized. In the prior art, the electric brake amplifies the rotary motion output by the motor and finally converts the amplified rotary motion into linear motion to drive a vehicle brake master cylinder to work. Most of the existing electric brakes and reversing guide mechanisms thereof have complex structures, higher requirements on precision and high manufacturing cost.
Disclosure of Invention
The utility model aims to solve the technical problem that, to prior art not enough, provide a simple structure, simple to operate, to the required precision of assembly lower, be fit for mass production's vehicle electric brake with switching-over guiding mechanism.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the reversing guide mechanism for the electric brake of the vehicle comprises a push rod, a support seat, a reversing guide sleeve and a reversing guide pillar, wherein an installation cavity with an opening at one end is arranged in the support seat, the reversing guide sleeve is fixed in the installation cavity, two guide grooves are formed in the reversing guide sleeve and are respectively arranged along the length direction of the reversing guide sleeve, the reversing guide pillar is arranged at one end of the push rod in a penetrating mode and is fixed at the other end of the push rod, two ends of the reversing guide pillar respectively extend into the two guide grooves, the push rod and the two guide grooves are arranged in parallel, an external thread part is arranged on the push rod, the external thread part is connected with the output end of a brake motor through a speed reducing mechanism, and the other end of the push rod is used for being connected with a piston of a brake master cylinder of the vehicle.
The utility model discloses switching-over guiding mechanism installs the back, and the during operation, the turning moment who comes from brake motor passes through reduction gears and transmits to the push rod, and the push rod is through mutually supporting of switching-over guide pillar and twice guide slot, converts the rotary motion who comes from brake motor into self linear motion, and the piston that promotes the total jar of vehicle braking removes, realizes the vehicle braking.
Preferably, the reversing guide sleeve is made of an elastic metal sheet, and viewed from the cross section of the reversing guide sleeve, the reversing guide sleeve comprises an arc part and two trapezoidal clamping pieces connected to two ends of the arc part respectively, each trapezoidal clamping piece encloses a trapezoidal groove, the lower bottom of the trapezoidal groove is open and faces the central line of the arc part, a square groove matched with the two trapezoidal clamping pieces is formed in the inner side wall of the installation cavity, each trapezoidal clamping piece is embedded and clamped in one square groove, and the trapezoidal groove is the guide groove after being deformed. The switching-over guide pin bushing adopts the elastic metal piece to make, have higher surface hardness and certain elastic deformation ability, thereby it is fit the timing to change the guide pin bushing, trapezoidal card goes into behind the square groove, elastic deformation can take place and hug closely the square groove, can increase the area of contact of switching-over guide pin bushing and supporting seat on the one hand, and the reinforce, convenient direction, on the other hand can produce the pretightning force, play good fixed and anti-rotation effect to the guide pin bushing that changes, and then ensure the switching-over of switching-over guide pin bushing and the realization of direction function.
Further, the lateral wall of circular arc portion be provided with a barb that turns up, the inside wall of installation cavity on seted up with the draw-in groove of barb looks adaptation, the barb card go into the draw-in groove in. The barb and the cooperation of draw-in groove can play the axial positioning effect to the direction changing guide sleeve, prevent that the direction changing guide sleeve during operation from deviating from along the axial.
Furthermore, one waist edge of each trapezoidal clamping piece is connected with the arc part, the other waist edge of each trapezoidal clamping piece is integrally provided with an outwards-turned positioning edge, and the positioning edge is tightly attached to the inner side wall of the installation cavity. The positioning edge can further position the reversing guide sleeve, so that the reversing guide sleeve is more firmly and reliably mounted.
Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses on vehicle is reversing guiding mechanism for electric brake was applied to electric brake, can convert the rotary motion of brake motor output to linear motion and have the direction function, this reversing guiding mechanism simple structure, simple to operate is lower to the required precision of assembly, is fit for mass production.
Drawings
FIG. 1 is a schematic structural diagram of a reversing guide mechanism for a vehicle electric brake in an embodiment;
3 FIG. 32 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 31 3; 3
FIG. 3 is a schematic cross-sectional view of the reversing guide sleeve before assembly in the embodiment;
fig. 4 is a sectional view taken along line B-B in fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The reversing guide mechanism for the vehicle electric brake in embodiment 1 is, as shown in the figure, including a push rod 1, a support base 2, a reversing guide sleeve 3 and a reversing guide post 4, wherein an installation cavity 21 with an open end is arranged in the support base 2, the reversing guide sleeve 3 is fixed in the installation cavity 21, two guide grooves 30 are arranged on the reversing guide sleeve 3, the two guide grooves 30 are respectively arranged along the length direction of the reversing guide sleeve 3, a column 4 of the reversing guide 4 is penetrated and fixed at one end of the push rod 1, two ends of the reversing guide post 4 respectively extend into the two guide grooves 30, the push rod 1 is arranged in parallel with the two guide grooves 30, an external thread part 11 is arranged on the push rod 1, the external thread part 11 is connected with an output end of a brake motor (not shown in the figure) through a speed reducing mechanism (not shown in the figure), and the.
In embodiment 1, a speed reducing mechanism of the related art is adopted, the speed reducing mechanism includes a pinion gear connected to an output end of the brake motor and a ball screw nut engaged with the pinion gear and the male screw portion 11, respectively, and the speed reducing mechanism performs a function of reducing speed and increasing torque by changing a transmission ratio.
In the embodiment 1, the reversing guide sleeve 3 is the reversing guide sleeve 3 integrally made of the elastic metal sheet, and in the embodiment, the reversing guide sleeve 3 is formed by punching and molding common spring steel, so that the manufacturing process is simple and the efficiency is high. Seen from the cross section of the reversing guide sleeve 3, the reversing guide sleeve 3 comprises an arc portion 31 and two trapezoidal clamping pieces 32 connected to two ends of the arc portion 31 respectively, each trapezoidal clamping piece 32 is enclosed to form a trapezoidal groove 33, the lower bottom opening of the trapezoidal groove 33 faces to the central line of the arc portion 31, a square groove 22 matched with the two trapezoidal clamping pieces 32 is formed in the inner side wall of the installation cavity 21, each trapezoidal clamping piece 32 is embedded in and clamped in one square groove 22, and the trapezoidal groove 33 is the guide groove 30 after being deformed.
The reversing guide mechanism for the vehicle electric brake in the embodiment 2 is different from the reversing guide mechanism in the embodiment 1 in that in the embodiment 2, the outer side wall of the arc portion 31 is provided with an outward-turned barb 34, the inner side wall of the installation cavity 21 is provided with a clamping groove 23 matched with the barb 34, and the barb 34 is clamped in the clamping groove 23.
The reversing guide mechanism for the vehicle electric brake of the embodiment 3 is different from the embodiment 2 in that in the embodiment 3, one waist edge of each trapezoidal clamping piece 32 is connected with the circular arc part 31, the other waist edge of each trapezoidal clamping piece 32 is integrally provided with an everted positioning edge 35, and the positioning edge 35 is tightly attached to the inner side wall of the mounting cavity 21.
After the reversing guide mechanism is installed on the electric brake, when the reversing guide mechanism works, the rotating torque from the brake motor is transmitted to the push rod 1 through the speed reducing mechanism, the push rod 1 is matched with the two guide grooves 30 through the reversing guide post 4, the rotating motion from the brake motor is converted into the linear motion of the push rod 1, the piston of the vehicle brake master cylinder is pushed to move, and the vehicle brake is realized.
Claims (4)
1. The reversing guide mechanism for the electric brake of the vehicle is characterized by comprising a push rod, a supporting seat, a reversing guide sleeve and a reversing guide pillar, wherein an installation cavity with an opening at one end is arranged in the supporting seat, the reversing guide sleeve is fixed in the installation cavity, two guide grooves are formed in the reversing guide sleeve and are respectively arranged along the length direction of the reversing guide sleeve, the reversing guide pillar is arranged at one end of the push rod in a penetrating mode and fixed in the one end of the push rod, two ends of the reversing guide pillar respectively extend into the two guide grooves, the push rod and the two guide grooves are arranged in parallel, an external thread part is arranged on the push rod, the external thread part is connected with the output end of a brake motor through a speed reducing mechanism, and the other end of the push rod is used for being connected with a piston of a master cylinder of the vehicle brake.
2. The reversing guide mechanism for the electric vehicle brake as claimed in claim 1, wherein the reversing guide sleeve is a reversing guide sleeve integrally formed from an elastic metal sheet, and viewed from a cross section of the reversing guide sleeve, the reversing guide sleeve comprises an arc portion and two trapezoidal clamping pieces respectively connected to two ends of the arc portion, each trapezoidal clamping piece defines a trapezoidal groove, a lower bottom of the trapezoidal groove is open and faces a center line of the arc portion, a square groove matched with the two trapezoidal clamping pieces is formed in an inner side wall of the mounting cavity, each trapezoidal clamping piece is embedded and clamped in one of the square grooves, and the deformed trapezoidal groove is the guide groove.
3. The reversing guide mechanism for the electric brake of the vehicle according to claim 2, wherein an eversible barb is arranged on the outer side wall of the arc portion, a clamping groove matched with the barb is formed in the inner side wall of the mounting cavity, and the barb is clamped into the clamping groove.
4. The reversing guide mechanism for the electric brake of the vehicle according to claim 2, wherein one waist edge of each of the trapezoidal clamping pieces is connected to the arc portion, and the other waist edge of each of the trapezoidal clamping pieces is integrally provided with an everted positioning edge, and the positioning edge is closely attached to the inner side wall of the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020619082.9U CN212353950U (en) | 2020-04-22 | 2020-04-22 | Reversing guide mechanism for vehicle electric brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020619082.9U CN212353950U (en) | 2020-04-22 | 2020-04-22 | Reversing guide mechanism for vehicle electric brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212353950U true CN212353950U (en) | 2021-01-15 |
Family
ID=74133535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020619082.9U Active CN212353950U (en) | 2020-04-22 | 2020-04-22 | Reversing guide mechanism for vehicle electric brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212353950U (en) |
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2020
- 2020-04-22 CN CN202020619082.9U patent/CN212353950U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230810 Address after: 315191 East 1st Road, Science Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Shangyuan Zhixing (Ningbo) Technology Co.,Ltd. Address before: 315191 East 1st Road, Science Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Zhejiang tianshangyuan Technology Co.,Ltd. |