CN114526207A - Piston pump set for hydraulic braking - Google Patents
Piston pump set for hydraulic braking Download PDFInfo
- Publication number
- CN114526207A CN114526207A CN202210259281.7A CN202210259281A CN114526207A CN 114526207 A CN114526207 A CN 114526207A CN 202210259281 A CN202210259281 A CN 202210259281A CN 114526207 A CN114526207 A CN 114526207A
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- CN
- China
- Prior art keywords
- piston
- gear
- nut
- motor
- hydraulic braking
- 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
- 238000007789 sealing Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/128—Driving means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a piston pump set for hydraulic braking, which comprises an engine motor and a hydraulic block, wherein a motor output shaft is arranged in the engine motor, a second gear is fixedly arranged at one end of the motor output shaft, a first gear is meshed with the surface of the second gear, a gear box is fixedly arranged on the surface of the hydraulic block through a bolt, and the second gear and the first gear are arranged in the gear box. According to the invention, the motor of the engine is started to drive the output shaft of the motor, the output shaft of the motor drives the gear II, the gear II drives the gear I through meshing with the gear I, the gear I drives the screw rod to rotate through the flat key and the bearing clamping sleeve, then the ball is arranged between the nut piston and the screw rod, and the nut piston is driven by the ball to do up-and-down linear motion when the screw rod rotates, so that the height of the nut piston in the piston cylinder is changed, the liquid level in the piston cylinder is changed, and braking is realized through the change of the hydraulic pressure in the piston cylinder.
Description
Technical Field
The invention relates to the technical field of automobile brake control, in particular to a piston pump set for hydraulic brake.
Background
The automobile brake system is subjected to mechanical braking and vacuum-assisted braking, and is continuously developed to electronization and high integration. The integration of an electronic brake assist system and an electronic body stability control system is considered to be a necessary trend of future automotive brake systems.
However, in the prior art, during actual use, in the existing scheme, the overall dimension is generally large, the structure is relatively complex, the transmission efficiency is relatively low, and the other scheme has high requirements on design, processing, and the like, for example: patent CN108791261A uses a worm gear-gear rack scheme, patent WO2020069872a1 adopts a planetary gear-worm gear, etc.; the worm gear and worm have low transmission efficiency and a not compact structure, and the design and processing of the planetary gear are high in cost and difficulty compared with the design and processing of a single-stage gear.
Disclosure of Invention
The object of the present invention is to provide a piston-pump group for hydraulic brakes that solves the problems set forth in the background of the invention described above.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a piston pump group for hydraulic braking, includes engine motor and hydraulic block, the inside of engine motor is provided with the motor output shaft, the fixed gear two that is provided with in one end of motor output shaft, the surface meshing of gear two has gear one, the surface of hydraulic block is provided with the gear box through the bolt fastening, gear two and gear one are in the inside of gear box, the bottom of hydraulic block is provided with the piston cylinder through the bolt fastening, the fixed parallel key that is provided with in inside of gear one, the fixed lead screw that is provided with in inside of parallel key, the surface activity of lead screw is provided with the ball, the activity of all surfaces of ball is provided with the nut piston, the nut piston is in the inside activity of piston cylinder.
Preferably, a sealing gasket is arranged between the engine motor and the gear box, and a bearing is fixedly arranged on the inner wall of the gear box.
Preferably, the inner ring of the bearing is fixedly provided with a thin nut and a bearing clamping sleeve, and the bearing is arranged between the thin nut and the bearing clamping sleeve.
Preferably, an inner hole is formed in the hydraulic block, first sealing rings are arranged in the inner hole, and the number of the first sealing rings is three.
Preferably, a second sealing ring is fixedly arranged on the surface of the nut piston, and the nut piston and the second sealing ring are arranged in the piston cylinder.
Preferably, the thin nut and the nut piston are fixedly connected through threads on the surface of the nut piston.
Preferably, the bottom of the engine motor is fixedly provided with a motor mounting pin, and a positioning hole is formed in the shell of the gear box and connected with the motor mounting pin.
Preferably, the inner wall of the piston cylinder is provided with a groove, a nut piston guide rod is fixedly arranged on the inner wall of the piston cylinder, and the nut piston guide rod is used for limiting the rotation of the nut piston.
Compared with the prior art, the invention has the beneficial effects that:
1. the engine motor is arranged, the motor output shaft is driven by starting the engine motor, the motor output shaft drives the gear II, the gear II drives the gear I through meshing with the gear I, the gear I drives the screw rod to rotate through the flat key and the bearing clamping sleeve, then the ball is arranged between the nut piston and the screw rod, and the nut piston is driven by the ball to do up-and-down linear motion when the screw rod rotates, so that the height of the nut piston in the piston cylinder is changed, the liquid level in the piston cylinder is changed, and the brake is realized by the change of the hydraulic pressure in the piston cylinder;
2. the invention also has the advantages of high transmission efficiency, response speed block, compact structure and the like, and the design of the single-stage gear is relatively mature in the aspects of product design and process requirements.
Drawings
FIG. 1 is a front cross-sectional view of the overall structure of a piston pump set for hydraulic braking according to the present invention;
fig. 2 is a schematic diagram of the structure and the movement of a piston pump set nut for hydraulic braking.
In the figure: 1. an engine motor; 2. a gasket; 3. a gear case; 4. a bearing; 5. a flat bond; 6. a first gear; 7. a hydraulic block; 8. a first sealing ring; 9. a piston cylinder; 10. a nut piston; 11. a lead screw; 12. a second sealing ring; 13. a second gear; 14. an output shaft of the motor; 15. a motor mounting pin; 16. a ball bearing; 17. a thin nut; 18. a nut piston guide rod; 19. and (5) a bearing clamping sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a piston pump group for hydraulic braking comprises an engine motor 1 and a hydraulic block 7, a motor output shaft 14 is arranged inside the engine motor 1, a second gear 13 is fixedly mounted at one end of the motor output shaft 14, a first gear 6 is meshed on the surface of the second gear 13, a gear box 3 is fixedly mounted on the surface of the hydraulic block 7 through bolts, the second gear 13 and the first gear 6 are arranged inside the gear box 3, a piston cylinder 9 is fixedly mounted at the bottom of the hydraulic block 7 through bolts, a flat key 5 is fixedly mounted inside the first gear 6, a lead screw 11 is fixedly mounted inside the flat key 5, a ball 16 is movably connected to the surface of the lead screw 11, a nut piston 10 is movably connected to the peripheral surface of the ball 16, and the nut piston 10 moves inside the piston cylinder 9.
A sealing gasket 2 is arranged between the engine motor 1 and the gear box 3, and a bearing 4 is fixedly arranged on the inner wall of the gear box 3.
The inner ring of the bearing 4 is fixedly provided with a thin nut 17 and a bearing cutting sleeve 19, and the bearing 4 is arranged between the thin nut 17 and the bearing cutting sleeve 19.
An inner hole is formed in the hydraulic block 7, a first sealing ring 8 is arranged in the inner hole, and the number of the first sealing ring 8 is three.
And a second sealing ring 12 is fixedly arranged on the surface of the nut piston 10, and the nut piston 10 and the second sealing ring 12 are arranged in the piston cylinder 9.
The thin nut 17 is fixedly installed with the nut piston 10 through threads on the surface of the nut piston 10.
The bottom of the engine motor 1 is fixedly provided with a motor mounting pin 15, and the shell of the gear box 3 is internally provided with a positioning hole connected with the motor mounting pin 15.
The inner wall of the piston cylinder 9 is provided with a groove, a nut piston guide rod 18 is fixedly arranged on the inner wall of the piston cylinder, and the nut piston guide rod 18 is used for limiting the rotation of the nut piston 10.
The working principle is as follows: when in use, the invention is provided with the engine motor 1, the motor output shaft 14 is driven by starting the engine motor 1, the motor output shaft 14 drives the gear II 13, the gear II 13 drives the gear I6 by meshing with the gear I6, the gear I6 drives the screw rod 11 to rotate by the flat key 5 and the bearing clamping sleeve 19, then, a ball 16 is arranged between the nut piston 10 and the screw 11, when the screw 11 rotates, the ball 16 drives the nut piston 10 to do linear motion up and down, thereby changing the height of the nut piston 10 in the piston cylinder 9, changing the liquid level in the piston cylinder 9, realizing the braking by the change of the hydraulic pressure in the piston cylinder 9, the invention also has the advantages of high transmission efficiency, response speed block, compact structure, and design of single-stage gear, and has mature product design and process requirements.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Piston-pump group for hydraulic braking, comprising an engine-motor (1) and a hydraulic block (7), characterized in that: a motor output shaft (14) is arranged inside the engine motor (1), one end of the motor output shaft (14) is fixedly provided with a second gear (13), the surface of the second gear (13) is engaged with the first gear (6), the surface of the hydraulic block (7) is fixedly provided with a gear box (3) through bolts, the second gear (13) and the first gear (6) are arranged inside the gear box (3), the bottom of the hydraulic block (7) is fixedly provided with a piston cylinder (9) through a bolt, a flat key (5) is fixedly arranged inside the first gear (6), a screw rod (11) is fixedly arranged inside the flat key (5), the surface of the lead screw (11) is movably provided with a ball (16), the peripheral surface of the ball (16) is movably provided with a nut piston (10), and the nut piston (10) moves in the piston cylinder (9).
2. Piston-pump group for hydraulic braking according to claim 1, characterised in that: a sealing gasket (2) is arranged between the engine motor (1) and the gear box (3), and a bearing (4) is fixedly arranged on the inner wall of the gear box (3).
3. Piston-pump group for hydraulic braking according to claim 2, characterised in that: the bearing is characterized in that a thin nut (17) and a bearing clamping sleeve (19) are fixedly arranged on an inner ring of the bearing (4), and the bearing (4) is arranged between the thin nut (17) and the bearing clamping sleeve (19).
4. Piston-pump group for hydraulic braking according to claim 1, characterised in that: the hydraulic block (7) is internally provided with an inner hole provided with a first sealing ring (8), and the number of the first sealing ring (8) is three.
5. Piston-pump group for hydraulic braking according to claim 1, characterised in that: and a second sealing ring (12) is fixedly arranged on the surface of the nut piston (10), and the nut piston (10) and the second sealing ring (12) are arranged in the piston cylinder (9).
6. Piston-pump group for hydraulic braking according to claim 1, characterised in that: the thin nut (17) is fixedly connected with the nut piston (10) through threads on the surface of the nut piston (10).
7. Piston-pump group for hydraulic braking according to claim 1, characterised in that: the bottom of the engine motor (1) is fixedly provided with a motor mounting pin (15), and a positioning hole is formed in the shell of the gear box (3) and connected with the motor mounting pin (15).
8. Piston-pump group for hydraulic braking according to claim 1, characterised in that: the inner wall of the piston cylinder (9) is provided with a groove, a nut piston guide rod (18) is fixedly arranged on the groove, and the nut piston guide rod (18) is used for limiting the rotation of the nut piston (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210259281.7A CN114526207A (en) | 2022-03-16 | 2022-03-16 | Piston pump set for hydraulic braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210259281.7A CN114526207A (en) | 2022-03-16 | 2022-03-16 | Piston pump set for hydraulic braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114526207A true CN114526207A (en) | 2022-05-24 |
Family
ID=81627386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210259281.7A Pending CN114526207A (en) | 2022-03-16 | 2022-03-16 | Piston pump set for hydraulic braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114526207A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02125885U (en) * | 1989-03-29 | 1990-10-17 | ||
| US20030116388A1 (en) * | 2001-12-21 | 2003-06-26 | Delphi Technologies Inc. | Caliper with internal motor |
| CN103909668A (en) * | 2014-04-02 | 2014-07-09 | 西安交通大学 | Mechanical idle-stroke and electric supercharge servo energy-saving hydraulic machine with oilless pumps |
| CN105221614A (en) * | 2014-06-27 | 2016-01-06 | 罗伯特·博世有限公司 | For the pressure generator of hydraulic vehicle brake equipment |
| CN206004459U (en) * | 2016-08-15 | 2017-03-08 | 嘉兴米克气动设备有限公司 | A kind of gear-type transmission electric cylinders |
| CN107985292A (en) * | 2017-12-29 | 2018-05-04 | 吉林大学 | Brake pedal and servomechanism complete separated type anti-bending electric booster braking system |
| CN110341679A (en) * | 2019-07-30 | 2019-10-18 | 瑞立集团瑞安汽车零部件有限公司 | A kind of integrated type electrical hydraulic braking power assisting device with ball-screw |
| CN212155071U (en) * | 2020-01-06 | 2020-12-15 | 浙江亚太机电股份有限公司 | Motor-driven pump with motor driving cylinder body for accurately controlling output pressure |
| CN113548026A (en) * | 2021-08-23 | 2021-10-26 | 北京英创汇智科技有限公司 | Device for active braking of vehicle |
| CN113682287A (en) * | 2021-08-19 | 2021-11-23 | 北京英创汇智科技有限公司 | Device for generating a vehicle brake pressure |
| KR20220005911A (en) * | 2020-07-07 | 2022-01-14 | 주식회사 만도 | Hydraulic supply device |
| CN114046234A (en) * | 2021-11-02 | 2022-02-15 | 万向钱潮股份有限公司 | Piston pump assembly of integrated braking system |
| CN215883623U (en) * | 2021-08-19 | 2022-02-22 | 北京英创汇智科技有限公司 | Device for generating a vehicle brake pressure |
-
2022
- 2022-03-16 CN CN202210259281.7A patent/CN114526207A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02125885U (en) * | 1989-03-29 | 1990-10-17 | ||
| US20030116388A1 (en) * | 2001-12-21 | 2003-06-26 | Delphi Technologies Inc. | Caliper with internal motor |
| CN103909668A (en) * | 2014-04-02 | 2014-07-09 | 西安交通大学 | Mechanical idle-stroke and electric supercharge servo energy-saving hydraulic machine with oilless pumps |
| CN105221614A (en) * | 2014-06-27 | 2016-01-06 | 罗伯特·博世有限公司 | For the pressure generator of hydraulic vehicle brake equipment |
| CN206004459U (en) * | 2016-08-15 | 2017-03-08 | 嘉兴米克气动设备有限公司 | A kind of gear-type transmission electric cylinders |
| CN107985292A (en) * | 2017-12-29 | 2018-05-04 | 吉林大学 | Brake pedal and servomechanism complete separated type anti-bending electric booster braking system |
| CN110341679A (en) * | 2019-07-30 | 2019-10-18 | 瑞立集团瑞安汽车零部件有限公司 | A kind of integrated type electrical hydraulic braking power assisting device with ball-screw |
| CN212155071U (en) * | 2020-01-06 | 2020-12-15 | 浙江亚太机电股份有限公司 | Motor-driven pump with motor driving cylinder body for accurately controlling output pressure |
| KR20220005911A (en) * | 2020-07-07 | 2022-01-14 | 주식회사 만도 | Hydraulic supply device |
| CN113682287A (en) * | 2021-08-19 | 2021-11-23 | 北京英创汇智科技有限公司 | Device for generating a vehicle brake pressure |
| CN215883623U (en) * | 2021-08-19 | 2022-02-22 | 北京英创汇智科技有限公司 | Device for generating a vehicle brake pressure |
| CN113548026A (en) * | 2021-08-23 | 2021-10-26 | 北京英创汇智科技有限公司 | Device for active braking of vehicle |
| CN114046234A (en) * | 2021-11-02 | 2022-02-15 | 万向钱潮股份有限公司 | Piston pump assembly of integrated braking system |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220524 |