CN116198473A - Transmission device with swing angle for electric control booster - Google Patents
Transmission device with swing angle for electric control booster Download PDFInfo
- Publication number
- CN116198473A CN116198473A CN202310368250.XA CN202310368250A CN116198473A CN 116198473 A CN116198473 A CN 116198473A CN 202310368250 A CN202310368250 A CN 202310368250A CN 116198473 A CN116198473 A CN 116198473A
- Authority
- CN
- China
- Prior art keywords
- push rod
- main cylinder
- piston
- motor
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a transmission device with a swing angle for an electric control booster, and belongs to the field of automobile braking systems. The motor and the hydraulic main cylinder take the valve body as a carrier, the axle center is coaxially fixed on the valve body, the piston is in radial sliding fit with the hydraulic main cylinder, one end of a transmission push rod of the transmission mechanism is in radial interference fit with a nut of the ball screw component, a screw rod of the ball screw component is in radial interference connection with a motor rotor of the motor, and a stop block of the hydraulic main cylinder is limited in the piston through a spring retainer ring. The hydraulic braking device has the advantages that the structure is novel, the motor is used as a power source, hydraulic thrust is provided for the braking hydraulic main cylinder, and the problems of leakage of braking liquid caused by eccentric wear of pistons when parts are not completely coaxial in matching are avoided by the push rod, the pressing block, the main cylinder push rod and the feedback disc structure. The device can be applied to conventional braking, brake-by-wire, active collision avoidance, self-adaptive cruising, intelligent driving and braking energy recovery systems, and achieves the aim of improving the reliability and durability of product work.
Description
Technical Field
The invention belongs to the field of automobile braking systems, and particularly relates to a transmission device with a swing angle for an electric control booster.
Background
With the increasing development of new energy automobiles, the field of traditional automobile parts faces significant innovation. Traditional fuel engines are gradually replaced by batteries, and development requirements of electric and intelligent, traditional vacuum boosters gradually leave the market, and electric control booster products gradually replace the traditional vacuum boosters. The electric control booster product is characterized in that the controller receives a displacement sensor to sense a travel signal of a brake pedal of the whole vehicle, and meanwhile, the output torque of the motor is controlled to transmit force to the hydraulic cylinder, and brake fluid in the hydraulic cylinder transmits hydraulic force to a brake wheel cylinder through a brake pipeline, so that the purpose of braking the whole vehicle is achieved. At present, in products in industry, a motor transmits torque to a hydraulic cylinder on the basis of a gear-rack, a worm gear, a ball screw and other structures. The ball screw is used as a main part, and the transmission structure is simple and the transmission efficiency is high.
Disclosure of Invention
The invention provides a transmission device with a swing angle for an electric control booster, which aims to solve the problem of brake fluid leakage caused by eccentric wear of a piston when parts of the existing transmission mechanism are not completely coaxial.
The technical scheme adopted by the invention is as follows: the hydraulic main cylinder comprises a ball screw component, a transmission mechanism, a hydraulic main cylinder, a motor, a piston and a valve body, wherein the motor and the hydraulic main cylinder take the valve body as a carrier, the axle center is coaxially fixed on the valve body, the piston is in radial sliding fit with the hydraulic main cylinder, one end of a transmission push rod of the transmission mechanism is in radial interference fit with a screw nut of the ball screw component, a screw rod of the ball screw component is in radial interference fit with a motor rotor of the motor, and a stop block of the hydraulic main cylinder is limited in the piston through a spring retainer ring.
The ball screw component comprises a nut, a gasket, a limiting block, a screw rod, a screw nut and a pin, wherein the rear end of the screw rod is fixed with a motor through the gasket and the nut, the screw nut is rotationally connected with the screw rod, the limiting block is fixedly connected with a valve body, one end of the pin is riveted with the screw nut, and the other end of the pin is in sliding fit with a rectangular groove on the limiting block.
The transmission mechanism comprises a transmission push rod, a push rod seat and a pressing block, wherein the push rod seat and the transmission push rod are axially pressed and riveted in an interference manner, the large end of the push rod seat is matched with a boss of an inner hole of a piston, the pressing block is arranged in the inner hole of the push rod seat, a gap exists in the radial direction, and the pressing block can move in the inner hole of the push rod seat in the radial direction when being subjected to radial force;
the hydraulic main cylinder comprises a main cylinder push rod, a feedback disc, an O-shaped ring, a stop block and a spring retainer ring, wherein a ball head of the main cylinder push rod is matched with a conical surface of a pressing block and is simultaneously matched with a piston in a small clearance, the stop block is limited in the piston through the spring retainer ring, the O-shaped ring is arranged on a radial ring belt of the stop block, and the feedback disc is arranged between the stop block and the main cylinder push rod.
The invention has the advantages of novel structure, lower cost and easy implementation, the motor is used as a power source, the rotary motion of the motor is changed into linear motion under the guiding function of the limiting block through the ball screw component, the transmission push rod and related parts connected with the transmission push rod in series drive the piston to go to the stroke to build pressure and return to release pressure in the hydraulic main cylinder, the hydraulic thrust is generated for the brake hydraulic main cylinder, and the push rod, the pressing block, the main cylinder push rod and the feedback disc structure avoid the problem of leakage of brake fluid caused by eccentric wear of the piston when the parts are not completely coaxial. The device can be applied to conventional braking, brake-by-wire, active collision avoidance, self-adaptive cruising, intelligent driving and braking energy recovery systems, and achieves the aim of improving the reliability and durability of product work.
Drawings
The drawings in the following description are only exemplary embodiments of the present invention and it will be apparent to those skilled in the art that other drawings may be made in accordance with the present invention without undue burden.
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
As shown in fig. 1, the hydraulic oil pump comprises a ball screw component 1, a transmission mechanism 2, a hydraulic main cylinder 3, a motor 4, a piston 5 and a valve body 6, wherein the motor 4 and the hydraulic main cylinder 3 take the valve body 6 as a carrier, the axle center is coaxially fixed on the valve body 6, the piston 5 is in radial sliding fit with the hydraulic main cylinder 3, one end of a transmission push rod 201 of the transmission mechanism 2 is in radial interference fit with a screw 105 of the ball screw component 1, a screw rod 104 of the ball screw component 1 is in radial interference fit with a motor rotor 401 of the motor 4, and a stop block 304 of the hydraulic main cylinder 3 is limited in the piston 5 through a spring retainer ring 305.
The ball screw component 1 comprises a nut 101, a gasket 102, a limiting block 103, a screw rod 104, a screw nut 105 and a pin 106, wherein the rear end of the screw rod 104 is fixed with a motor 4 through the gasket 102 and the nut 101, the screw nut 105 is rotationally connected with the screw rod 104, the limiting block 103 is fixedly connected with a valve body 6, one end of the pin 106 is riveted with the screw nut 105, and the other end of the pin 106 is in sliding fit with a rectangular groove on the limiting block 103. The linear movement of the nut 105 is realized by sliding fit limit between a pin 106 riveted on the nut 105 and a limit block 103 with a rectangular groove fixed on the valve body 2.
The transmission mechanism 2 comprises a transmission push rod 201, a push rod seat 202 and a pressing block 203, wherein the push rod seat 202 and the transmission push rod 201 are axially pressed and riveted in an interference manner, the large end of the push rod seat 202 is matched with a boss of an inner hole of the piston 5, the piston 5 is driven to return when the return pressure is released, the pressing block 203 is arranged in the inner hole of the push rod seat 202, a gap exists in the radial direction, and the pressing block can move in the inner hole of the push rod seat 202 in the radial direction when the radial force is applied;
the hydraulic main cylinder 3 comprises a main cylinder push rod 301, a feedback disc 302, an O-shaped ring 303, a stop block 304 and a spring retainer 305, wherein the ball head of the main cylinder push rod 301 is matched with the conical surface of the pressing block 203 and is simultaneously matched with the piston 5 in a small clearance way, the stop block 304 is limited in the piston 5 through the spring retainer 305, the O-shaped ring 303 is arranged on the radial annular belt of the stop block 304 to play a role of hydraulic sealing, and the feedback disc 302 is arranged between the stop block 304 and the main cylinder push rod 301; when the hydraulic main cylinder 3, the piston 5, the transmission push rod 201, the screw rod 104, the screw 105 and the motor rotor 401 are not completely coaxial, the main cylinder push rod 301 plays a role in that the ball head of the main cylinder push rod 301 can swing radially along the conical surface of the pressing block 203 based on the compressible rubber piece feedback disc 302 matched with the main cylinder push rod 301 to generate a certain swing angle; thereby solving the problem of leakage of brake fluid caused by eccentric wear of the piston 5 when the piston 5 is not coaxial with the hydraulic master cylinder 3.
Principle of operation
The motor 4 is used as a power source, the ball screw part 1 changes the rotary motion of the motor 4 into linear motion under the guiding action of the limiting block 103, the transmission push rod 201 and related parts connected with the transmission push rod are pushed to transmit force step by step, the piston 5 is driven to move forwards through the spring retainer ring 305, the stroke is carried out in the hydraulic master cylinder 3, the large end of the push rod seat 202 is matched with a boss of an inner hole of the piston 5, the piston 5 is driven to return during return pressure relief, and the traditional structure with a return spring inside the hydraulic master cylinder 3 is eliminated; the push rod seat 202, the pressing block 203, the main cylinder push rod 301 and the feedback disc 302 can avoid the problem of leakage of brake fluid caused by eccentric wear of the piston when the parts are not completely matched and coaxial through the swing angle function.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the scope of the present invention is not limited to the specific details of the above embodiments, and within the scope of the technical concept of the present invention, any person skilled in the art may apply equivalent substitutions or alterations to the technical solution according to the present invention and the inventive concept thereof within the scope of the technical concept of the present invention, and these simple modifications are all within the scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Claims (4)
1. The utility model provides a take transmission for automatically controlled booster of pivot angle which characterized in that: the hydraulic main cylinder comprises a ball screw component, a transmission mechanism, a hydraulic main cylinder, a motor, a piston and a valve body, wherein the motor and the hydraulic main cylinder take the valve body as a carrier, the axle center is coaxially fixed on the valve body, the piston is in radial sliding fit with the hydraulic main cylinder, one end of a transmission push rod of the transmission mechanism is in radial interference fit with a screw nut of the ball screw component, a screw rod of the ball screw component is in radial interference fit with a motor rotor of the motor, and a stop block of the hydraulic main cylinder is limited in the piston through a spring retainer ring.
2. The transmission device for an electric control booster with a pivot angle according to claim 1, characterized in that: the ball screw component comprises a nut, a gasket, a limiting block, a screw rod, a screw nut and a pin, wherein the rear end of the screw rod is fixed with the motor through the gasket and the nut, the screw nut is rotationally connected with the screw rod, the limiting block is fixedly connected with the valve body, one end of the pin is riveted with the screw nut, and the other end of the pin is in sliding fit with the rectangular groove on the limiting block.
3. The transmission device for an electric control booster with a pivot angle according to claim 1, characterized in that: the transmission mechanism comprises a transmission push rod, a push rod seat and a pressing block, wherein the push rod seat and the transmission push rod axially compress and are in interference riveting, the large end of the push rod seat is matched with a boss of an inner hole of a piston, the pressing block is arranged in the inner hole of the push rod seat, a gap exists in the radial direction, and the pressing block can move in the inner hole of the push rod seat in the radial direction when being subjected to radial force.
4. The transmission device for an electric control booster with a pivot angle according to claim 1, characterized in that: the hydraulic main cylinder comprises a main cylinder push rod, a feedback disc, an O-shaped ring, a check block and a spring retainer ring, wherein the ball head of the main cylinder push rod is matched with the conical surface of the pressing block and is simultaneously matched with the piston in a small clearance way, the check block is limited in the piston through the spring retainer ring, the O-shaped ring is arranged on the radial annular belt of the check block, and the feedback disc is arranged between the check block and the main cylinder push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310368250.XA CN116198473A (en) | 2023-04-08 | 2023-04-08 | Transmission device with swing angle for electric control booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310368250.XA CN116198473A (en) | 2023-04-08 | 2023-04-08 | Transmission device with swing angle for electric control booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116198473A true CN116198473A (en) | 2023-06-02 |
Family
ID=86507857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310368250.XA Pending CN116198473A (en) | 2023-04-08 | 2023-04-08 | Transmission device with swing angle for electric control booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116198473A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117261859A (en) * | 2023-11-21 | 2023-12-22 | 上海威肯西科技有限公司 | Transmission booster device and manufacturing method thereof |
-
2023
- 2023-04-08 CN CN202310368250.XA patent/CN116198473A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117261859A (en) * | 2023-11-21 | 2023-12-22 | 上海威肯西科技有限公司 | Transmission booster device and manufacturing method thereof |
| CN117261859B (en) * | 2023-11-21 | 2024-03-01 | 上海威肯西科技有限公司 | Transmission booster device and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105197002B (en) | Vehicle braking booster and its control method | |
| CN100417559C (en) | Force aid system for braking | |
| CN105774788A (en) | Electric power-assisted braking system with composite functions | |
| CN205440327U (en) | Electronic helping hand braking system with complex function | |
| CN109606340B (en) | Electromechanical braking system with backup braking system | |
| CN116198473A (en) | Transmission device with swing angle for electric control booster | |
| CN110696798A (en) | Electronic hydraulic braking system and method applied to large-tonnage vehicle and large-tonnage vehicle | |
| CN109153378B (en) | Electric booster | |
| CN113511177A (en) | Transmission device of electronic hydraulic brake boosting booster mechanism | |
| CN116494939A (en) | Electric control booster with swing angle transmission mechanism capable of reciprocally building pressure | |
| CN113492817A (en) | Vehicle braking system and vehicle | |
| CN112145582B (en) | Disc brake, brake-by-wire system and vehicle | |
| CN111137257B (en) | Electronic hydraulic brake | |
| CN112896125A (en) | Split type electro-hydraulic braking system and braking control method thereof | |
| CN110725880B (en) | Brake system with high dynamic brake pressure regulation characteristic and parking function | |
| CN113135170A (en) | Automobile line control brake system | |
| CN212744798U (en) | Screw self-locking type electric cylinder device adopting planetary gear mechanism | |
| CN116641979A (en) | Electric control booster with eccentric wear prevention transmission mechanism for booster cylinder | |
| CN220639803U (en) | Transmission mechanism with planetary gear train suitable for electric control booster | |
| CN210106456U (en) | Annular piston type braking system | |
| CN109099080B (en) | Wire control electronic brake | |
| CN109849885B (en) | Electric power-assisted brake system | |
| CN106938644B (en) | Vehicle and vehicle composite braking system | |
| CN112727952B (en) | Electro-hydraulic brake-by-wire with self-power-taking function | |
| CN213619710U (en) | Active pressure regulating system of brake master cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |