CN108869240A - Electric vacuum pump and its method of press-fitting with annular knurl mandrel - Google Patents
Electric vacuum pump and its method of press-fitting with annular knurl mandrel Download PDFInfo
- Publication number
- CN108869240A CN108869240A CN201810708676.4A CN201810708676A CN108869240A CN 108869240 A CN108869240 A CN 108869240A CN 201810708676 A CN201810708676 A CN 201810708676A CN 108869240 A CN108869240 A CN 108869240A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- motor
- press
- annular knurl
- vacuum pump
- 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
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000007373 indentation Methods 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000012797 qualification Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 206010003671 Atrioventricular Block Diseases 0.000 description 1
- 208000010271 Heart Block Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- 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
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- 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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
-
- 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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/047—Pumps having electric drive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The present invention relates to brake system of car technical field, specifically a kind of electric vacuum pump and its method of press-fitting with annular knurl mandrel.A kind of electric vacuum pump with annular knurl mandrel, including cylinder cap, shell, motor, it is characterised in that：The upper and lower ends of shell are separately connected cylinder cap, one end of the inner end connection diaphragm of the cylinder cap of upper and lower ends, and the other end of diaphragm connects eccentric block using connecting rod；The side of shell is equipped with motor, and axis connects the eccentric orfices of two eccentric blocks to the mandrel of motor respectively；The mandrel of the motor is annular knurl toothing.The prior art is compared, a kind of electric vacuum pump and its method of press-fitting with annular knurl mandrel is provided, it is pressed into eccentric block and eccentric block and motor mandrel using the motor mandrel of annular knurl to be made for powder metallurgical technique, it is ensured that motor mandrel can securely connect with eccentric block；And cooperates specific press-loading process, improve the overall quality of electric vacuum pump, prolong the service life.
Description
Technical field
The present invention relates to brake system of car technical field, specifically a kind of electric vacuum pump with annular knurl mandrel
And its method of press-fitting.
Background technique
Electric vacuum pump is applied to new energy vehicle, is that vacuum booster extracts vacuum using electric energy, be it is a kind of it is mature and stable,
Economic brake boost solution.Diaphragm type electric vacuum pump has the features such as pumping efficiency is high, and the service life is long, but motor exports
Mandrel and eccentric block connection type are very crucial, due under tension in rotation process, eccentric block are be easy to cause to fall off, therefore,
A kind of mandrel annular knurl design is provided, the eccentric block for being pressed into powdered metallurgical material ensures securely to connect, it appears particularly important.
Summary of the invention
The present invention in order to overcome the deficiencies of the prior art, provides a kind of electric vacuum pump with annular knurl mandrel and its indentation side
Method.
To achieve the above object, a kind of electric vacuum pump with annular knurl mandrel, including cylinder cap, shell, motor are designed,
It is characterized in that：The upper and lower ends of shell are separately connected cylinder cap, and the inner end of the cylinder cap of upper and lower ends connects one end of diaphragm, diaphragm
The other end connects eccentric block using connecting rod；The side of shell is equipped with motor, and axis connects the inclined of two eccentric blocks to the mandrel of motor respectively
Heart hole；The mandrel of the motor is annular knurl toothing.
When work, the mandrel of motor drives two circular eccentric blocks rotations, pulls two connecting rods by eccentric motion, and two
A cylinder is evacuated simultaneously or exhaust.
The other side of the shell is equipped with muffler.
The cylinder cap and diaphragm of the shell and upper and lower ends form vacuum chamber, and the forward position positioned at vacuum chamber connects
Connect vacuum interface.
The eccentric block is made for powder metallurgical technique.
The specific method is as follows：
（1）Motor and two pieces of eccentric blocks are placed in the designated position of press, press is according to specified indentation force value and pushes row
Journey carries out primary indentation work, and the stroke of indentation is not more than 30mm, and the force value of indentation is not more than 11000N；
（2）The data that press is provided according to force snesor and displacement sensor judge the stroke of indentation and whether are pressed into force value
Qualification, it is unqualified, it alarms；
（3）The force value for being pressed into first piece of eccentric block is F1, and the force value for being pressed into second piece of eccentric block is F2, wherein F1's and F2-F1
Force value is both greater than 800N respectively, is judged as qualified, unqualified, alarms；
（4）After indentation is qualified, workpiece is taken out, continues next process.
The press includes rack, press fitting cylinder, force snesor, guiding axis, motor placement rack, and the top of rack is equipped with
It is pressed cylinder, the projecting shaft for being pressed cylinder connects the upper end of upper sensor connecting plate, upper sensor connection through the top of rack
One end of the lower end connection force snesor of plate, the upper end of the other end connection lower sensor connecting plate of force snesor, lower sensor
One end of the lower end connection guiding axis of connecting plate, the other end of guiding axis connect guide pin；Positioned at being arranged right below for guide pin
Motor placement rack, the motor placement rack are located at the front side of rack, and the upper end of motor placement rack is equipped with motor guiding axis.
The press fitting cylinder is equipped with displacement sensor.
It is connected between the upper sensor connecting plate and lower sensor connecting plate using connecting column, the connecting column point
Surrounding position not between upper sensor connecting plate and lower sensor connecting plate.
Guide rod is equipped at left and right sides of the projecting shaft of press fitting cylinder, one end of guide rod is located at the top of rack, leads
It is connect to the other end of bar through rack with upper sensor connecting plate.
The present invention compared with the existing technology, provides a kind of electric vacuum pump and its method of press-fitting with annular knurl mandrel, benefit
It is pressed into eccentric block and eccentric block and motor mandrel with the motor mandrel of annular knurl to be made for powder metallurgical technique, it is ensured that electricity
Machine mandrel can securely connect with eccentric block；And cooperate specific press-loading process, improve the overall quality of electric vacuum pump,
Prolong the service life.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is structure of the invention cross-sectional view.
Fig. 3 is the core shaft structure schematic diagram of motor.
Fig. 4 is press structure schematic diagram.
It is cylinder cap referring to Fig. 1, Fig. 2,1,2 be motor, and 3 be vacuum interface, and 4 be shell, and 5 be diaphragm, and 6 be connecting rod, and 7 be to disappear
Sound device, 8 be eccentric block.
Referring to fig. 4,11 be press fitting cylinder, and 12 be guide rod, and 13 be upper sensor connecting plate, and 14 connect for lower sensor
Plate, 15 be rack, and 16 be motor placement rack, and 17 be motor guiding axis, and 18 be guide pin, and 19 be guiding axis, and 20 be connecting column, 21
For force snesor.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in Figure 1 to Figure 3, the upper and lower ends of shell 4 are separately connected cylinder cap 1, the inner end connection of the cylinder cap 1 of upper and lower ends
The other end of one end of diaphragm 5, diaphragm 5 connects eccentric block 8 using connecting rod 6；The side of shell 4 is equipped with motor 2, the core of motor 2
Axis connects the eccentric orfices of two eccentric blocks 8 to axis respectively；The mandrel of the motor 2 is annular knurl toothing.
The other side of shell 4 is equipped with muffler 7.
The cylinder cap 1 and diaphragm 5 of shell 4 and upper and lower ends form vacuum chamber, and the forward position positioned at vacuum chamber connects
Vacuum interface 3.
Eccentric block 8 is made for powder metallurgical technique.
A kind of method of press-fitting of the electric vacuum pump with annular knurl mandrel, the specific method is as follows：
（1）Motor and two pieces of eccentric blocks are placed in the designated position of press, press is according to specified indentation force value and pushes row
Journey carries out primary indentation work, and the stroke of indentation is not more than 30mm, and the force value of indentation is not more than 11000N；
（2）The data that press is provided according to force snesor and displacement sensor judge the stroke of indentation and whether are pressed into force value
Qualification, it is unqualified, it alarms；
（3）The force value for being pressed into first piece of eccentric block is F1, and the force value for being pressed into second piece of eccentric block is F2, wherein F1's and F2-F1
Force value is both greater than 800N respectively, is judged as qualified, unqualified, alarms；
（4）After indentation is qualified, workpiece is taken out, continues next process.
Press includes rack, press fitting cylinder, force snesor, guiding axis, motor placement rack, and the top of rack 15 is equipped with press fitting
Cylinder 11, the projecting shaft of press fitting cylinder 11 connect the upper end of upper sensor connecting plate 13, upper sensor through the top of rack 15
One end of the lower end connection force snesor 21 of connecting plate 13, the other end of force snesor 21 connect the upper of lower sensor connecting plate 14
End, one end of the lower end connection guiding axis 19 of lower sensor connecting plate 14, the other end of guiding axis 19 connect guide pin 18；It is located at
Guide pin 18 is arranged right below motor placement rack 16, and the motor placement rack 16 is located at the front side of rack 15, and motor is placed
The upper end of seat 16 is equipped with motor guiding axis 17.
It is pressed cylinder 11 and is equipped with displacement sensor.
It is connected between upper sensor connecting plate 13 and lower sensor connecting plate 14 using connecting column 20, the connecting column 20
It is located at the surrounding position between sensor connecting plate 13 and lower sensor connecting plate 14.
Guide rod 12 is equipped at left and right sides of the projecting shaft of press fitting cylinder 11, one end of guide rod 12 is located at rack 15
The other end on top, guide rod 12 is connect through rack 15 with upper sensor connecting plate 13.
A kind of electric vacuum pump and its method of press-fitting with annular knurl mandrel is provided, is pressed into using the motor mandrel of annular knurl inclined
The eccentric orfice and eccentric block of heart block are made for powder metallurgical technique, it is ensured that motor mandrel can securely connect with eccentric block
It connects；And cooperates specific press-loading process, improve the overall quality of electric vacuum pump, prolong the service life.
Claims (9)
1. a kind of electric vacuum pump with annular knurl mandrel, including cylinder cap, shell, motor, it is characterised in that：Shell（4）It is upper
Lower both ends are separately connected cylinder cap（1）, the cylinder cap of upper and lower ends（1）Inner end connect diaphragm（5）One end, diaphragm（5）It is another
End uses connecting rod（6）Connect eccentric block（8）；Shell（4）Side be equipped with motor（2）, motor（2）Mandrel axis connects two respectively
Eccentric block（8）Eccentric orfice；The motor（2）Mandrel be annular knurl toothing.
2. the electric vacuum pump according to claim 1 with annular knurl mandrel, it is characterised in that：The shell（4）'s
The other side is equipped with muffler（7）.
3. the electric vacuum pump according to claim 1 with annular knurl mandrel, it is characterised in that：The shell（4）With
The cylinder cap of upper and lower ends（1）And diaphragm（5）Vacuum chamber is formed, the forward position positioned at vacuum chamber connects vacuum interface（3）.
4. the electric vacuum pump according to claim 1 with annular knurl mandrel, it is characterised in that：The eccentric block（8）
It is made for powder metallurgical technique.
5. a kind of method of press-fitting of the electric vacuum pump with annular knurl mandrel, it is characterised in that：The specific method is as follows：
（1）Motor and two pieces of eccentric blocks are placed in the designated position of press, press is according to specified indentation force value and pushes row
Journey carries out primary indentation work, and the stroke of indentation is not more than 30mm, and the force value of indentation is not more than 11000N；
（2）The data that press is provided according to force snesor and displacement sensor judge the stroke of indentation and whether are pressed into force value
Qualification, it is unqualified, it alarms；
（3）The force value for being pressed into first piece of eccentric block is F1, and the force value for being pressed into second piece of eccentric block is F2, wherein F1's and F2-F1
Force value is both greater than 800N respectively, is judged as qualified, unqualified, alarms；
（4）After indentation is qualified, workpiece is taken out, continues next process.
6. the method for press-fitting of the electric vacuum pump according to claim 6 with annular knurl mandrel, it is characterised in that：Described
Press includes rack, press fitting cylinder, force snesor, guiding axis, motor placement rack, rack（15）Top be equipped with press fitting cylinder
（11）, it is pressed cylinder（11）Projecting shaft run through rack（15）Top connect upper sensor connecting plate（13）Upper end, upload
Sensor connecting plate（13）Lower end connect force snesor（21）One end, force snesor（21）The other end connection lower sensor connect
Fishplate bar（14）Upper end, lower sensor connecting plate（14）Lower end connect guiding axis（19）One end, guiding axis（19）It is another
End connection guide pin（18）；Positioned at guide pin（18）Be arranged right below motor placement rack（16）, the motor placement rack
（16）Positioned at rack（15）Front side, motor placement rack（16）Upper end be equipped with motor guiding axis（17）.
7. the method for press-fitting of the electric vacuum pump according to claim 6 with annular knurl mandrel, it is characterised in that：Described
It is pressed cylinder（11）It is equipped with displacement sensor.
8. the method for press-fitting of the electric vacuum pump according to claim 6 with annular knurl mandrel, it is characterised in that：Described
Upper sensor connecting plate（13）With lower sensor connecting plate（14）Between use connecting column（20）Connection, the connecting column（20）
It is located at sensor connecting plate（13）With lower sensor connecting plate（14）Between surrounding position.
9. the method for press-fitting of the electric vacuum pump according to claim 6 with annular knurl mandrel, it is characterised in that：Positioned at pressure
Fill cylinder（11）Projecting shaft at left and right sides of be equipped with guide rod（12）, guide rod（12）One end be located at rack（15）Top,
Guide rod（12）The other end run through rack（15）With upper sensor connecting plate（13）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708676.4A CN108869240A (en) | 2018-07-02 | 2018-07-02 | Electric vacuum pump and its method of press-fitting with annular knurl mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708676.4A CN108869240A (en) | 2018-07-02 | 2018-07-02 | Electric vacuum pump and its method of press-fitting with annular knurl mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869240A true CN108869240A (en) | 2018-11-23 |
Family
ID=64298101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810708676.4A Pending CN108869240A (en) | 2018-07-02 | 2018-07-02 | Electric vacuum pump and its method of press-fitting with annular knurl mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869240A (en) |
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| CN102257274A (en) * | 2008-12-19 | 2011-11-23 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Motor-pump assembly |
| CN102886675A (en) * | 2012-11-14 | 2013-01-23 | 台州市冠丰自动化设备有限公司 | Electric-control stroke-adjustable vehicle-mounted water pump flange pressing machine |
| CN203356961U (en) * | 2013-05-17 | 2013-12-25 | 刘秀萍 | Servo press-fitting equipment of starter commutator |
| CN203484873U (en) * | 2013-09-13 | 2014-03-19 | 张家港孚冈汽车部件有限公司 | Gear pressing device |
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| CN106505784A (en) * | 2015-09-03 | 2017-03-15 | 法雷奥电机设备公司 | The method of electric rotating machine and this kind of motor of assembling including the axle of tool stepped diameter |
| CN106514237A (en) * | 2016-11-11 | 2017-03-22 | 上海天海电子有限公司 | Automatic press-fitting detection device |
| CN206353744U (en) * | 2017-01-18 | 2017-07-25 | 中山市朗宇模型有限公司 | A kind of brand-new horizontal stage electric machine induced magnet fixed structure |
| US20170274886A1 (en) * | 2014-08-22 | 2017-09-28 | Continental Teves Ag & Co. Ohg | Electric motor-pump assembly |
| CN107486701A (en) * | 2017-08-22 | 2017-12-19 | 机科发展科技股份有限公司 | Rotor press-mounting system and pressing method |
| CN107649856A (en) * | 2017-11-14 | 2018-02-02 | 江苏奥力威传感高科股份有限公司 | Flange guide rod crimp connection fixture |
| CN208543182U (en) * | 2018-07-02 | 2019-02-26 | 上海汽车制动系统有限公司 | The press-loading device of electric vacuum pump with annular knurl mandrel |
-
2018
- 2018-07-02 CN CN201810708676.4A patent/CN108869240A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176967A (en) * | 2007-12-10 | 2008-05-14 | 广州市嘉特斯机电制造有限公司 | Bearing press-in device and method of use thereof |
| CN102257274A (en) * | 2008-12-19 | 2011-11-23 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Motor-pump assembly |
| CN102886675A (en) * | 2012-11-14 | 2013-01-23 | 台州市冠丰自动化设备有限公司 | Electric-control stroke-adjustable vehicle-mounted water pump flange pressing machine |
| CN203356961U (en) * | 2013-05-17 | 2013-12-25 | 刘秀萍 | Servo press-fitting equipment of starter commutator |
| CN203484873U (en) * | 2013-09-13 | 2014-03-19 | 张家港孚冈汽车部件有限公司 | Gear pressing device |
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