CN115163741A - Electric automobile drive axle controller with shock-absorbing function - Google Patents
Electric automobile drive axle controller with shock-absorbing function Download PDFInfo
- Publication number
- CN115163741A CN115163741A CN202210896981.7A CN202210896981A CN115163741A CN 115163741 A CN115163741 A CN 115163741A CN 202210896981 A CN202210896981 A CN 202210896981A CN 115163741 A CN115163741 A CN 115163741A
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- Prior art keywords
- damping
- controller
- mounting
- shock absorption
- drive axle
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- 238000013016 damping Methods 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 34
- 238000005096 rolling process Methods 0.000 claims abstract description 33
- 230000035939 shock Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims abstract 12
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 4
- 239000000306 component Substances 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an electric automobile drive axle controller with a shock absorption function, which relates to the technical field of automobile drive axle controller installation and comprises a controller body and shock absorption assemblies arranged around the controller body, wherein each shock absorption assembly comprises an installation pipe, a sliding block, a shock absorption spring, a sealing cover, a damping device and a rolling mechanism.
Description
Technical Field
The invention belongs to the technical field of automobile electric drive axle controller installation, and particularly relates to an electric automobile drive axle controller with a damping function.
Background
The core components (such as a motor and a controller) of an electric drive system in an electric drive axle are all positioned below a finished automobile shock absorber, and because various precise electronic components are assembled in the controller, if the running road condition is bumpy, the precise electronic components are easily damaged. And traditional shock attenuation mode shock attenuation effect is poor, is difficult to satisfy above-mentioned requirement.
In the prior art, as disclosed in patent publication No. CN111594567A, a damping device for solving the above problems is disclosed, which reduces the impact acceleration of spring rebound oscillation by means of a plurality of frictional damping forces between the damping structures and the inner wall of the mounting seat, thereby playing a role of slow release of bidirectional impact force, and simultaneously, can quickly consume impact energy, so that the damping spring is quickly stable, and the oscillation frequency of the damping spring is reduced. However, in the bumping process of the controller, the damping block and the damping groove in the damping structure are always in a sliding friction state, and a large amount of heat is generated in the process, so that the evaporation of lubricating grease is accelerated, and the probability of clamping stagnation in the later period is increased. Therefore, it is necessary to further optimize the design of the existing damping device.
Disclosure of Invention
The invention aims to provide an electric automobile drive axle controller with a damping function, so as to solve the defects caused in the prior art.
The utility model provides an electric automobile transaxle controller with shock-absorbing function, includes the controller body and installs in controller body shock-absorbing component all around, shock-absorbing component is including installation pipe, slider and damping spring, the closing cap is installed at the both ends of installation pipe, installation end sliding connection in the slider is intraductal, link and installation end fixed connection in the slider can with the installation pipe side set up along the opening sliding connection that dodges that installation pipe length direction set up, damping spring installs in the upper and lower both sides of installation end, the periphery of installation end is fixed with four rolling mechanism and installs and is equipped with the movable slot that supplies the activity of rolling mechanism on the inner wall of pipe, installs two sets of damping device that set up from top to bottom respectively in the installation pipe lateral wall, and every damping device of group includes two damping mechanisms that are central symmetry setting again, and every damping structure corresponds a rolling mechanism, and wherein, under the electric automobile transaxle controller quiescent condition, the installation end is located balanced point position:
when the distance between the mounting end and the balance point is gradually increased, rolling friction is generated between one group of damping mechanisms and the two corresponding rolling mechanisms;
when the distance between the mounting end and the balance point is gradually reduced, sliding friction exists between one group of damping mechanisms and the two corresponding rolling mechanisms.
Preferably, the rolling mechanism comprises a support and a roller, the support is fixed on the periphery of the mounting end, and the roller is rotatably connected with the support by means of a one-way bearing in the support.
Preferably, upper and lower two sets of damping device are located the upper and lower both sides of balance point respectively and two sets of damping device along the crisscross setting of circumference of installation pipe, damping mechanism includes shell body, damping piece, supporting spring and end cover, the shell body is fixed in the mounting hole that sets up on the installation pipe lateral wall, damping piece sliding connection is fixed with in the guiding hole that the shell body front end set up and the back of damping piece is used for spacing thrust plate, and thrust plate sliding connection is in the shell body, the end cover is installed in the rear end of shell body, and supporting spring installs between end cover and thrust plate.
Preferably, the periphery of the roller or the front end surface of the damping block is provided with an anti-skid layer.
Preferably, the rear end of the outer shell is provided with a rib plate, and the end cover is fixedly connected with the rib plate by means of bolts.
Preferably, a mounting seat is further mounted on one of the covers.
Preferably, the connecting end is provided with a connecting hole for connecting with the controller body.
The invention has the advantages that: according to the invention, by means of the two groups of damping devices arranged up and down and the four rolling mechanisms, when the distance between the mounting end and the balance point is gradually reduced, sliding friction is formed between one group of damping mechanisms and the two corresponding rolling mechanisms, so that the impact acceleration of rebound oscillation of the damping spring is reduced, a bidirectional impact force slow release effect is realized, and simultaneously, impact energy can be quickly consumed, so that the damping spring quickly tends to be stable, the oscillation frequency of the damping spring is reduced, and when the distance between the mounting end and the balance point is gradually increased, rolling friction is formed between one group of damping mechanisms and the two corresponding rolling mechanisms, so that the friction resistance is reduced, the generated heat is reduced, the sliding friction is not required in the whole process, the material loss is indirectly reduced, the maintenance is convenient, and the cost is low.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 and 3 are schematic structural diagrams of the shock absorbing assembly of the present invention from different viewing angles.
Figure 4 is a top view of the shock absorbing assembly of the present invention.
Fig. 5 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 4.
Fig. 6 is a partial detail view of the portion of the damping mechanism of fig. 5.
Fig. 7 is an exploded view of the damping mechanism.
Fig. 8 is a schematic structural view of the slider and the rolling mechanism.
Fig. 9 is a schematic view of the structure of the installation tube.
Wherein: 1, mounting a pipe, 10 mounting holes, 11 movable grooves, 2 sliding blocks, 20 mounting ends, 21 connecting ends, 210 connecting holes, 3 shock-absorbing springs, 4 sealing covers, 5 mounting seats, 6 avoiding openings, 7 damping devices, 70 outer shells, 71 damping blocks, 72 supporting springs, 73 end covers, 74 guide holes, 75 thrust plates, 76 ribbed plates, 8 rolling mechanisms, 80 supports, 81 rollers and 9 one-way bearings;
100 controller body, 200 shock absorbing assembly.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 9, an electric vehicle drive axle controller with a damping function includes a controller body 100 and damping assemblies 200 installed around the controller body 100, where each damping assembly 200 includes an installation tube 1, a slider 2 and a damping spring 3, two ends of the installation tube 1 are installed with sealing caps 4, one of the sealing caps 4 is further installed with an installation seat 5, an installation end 20 in the slider 2 is slidably connected in the installation tube 1, a connection end 21 in the slider 2 is fixedly connected with the installation end 20 and can be slidably connected with an avoidance opening 6, which is arranged on a side surface of the installation tube 1 and is arranged along a length direction of the installation tube 1, the connection end 21 is provided with a connection hole 210 for connecting with the controller body 100, the periphery of the controller body 100 is connected with the connection end 21 by means of the connection hole 210 on the connection end 21, and is then installed and fixed on an electric drive axle by the installation seat 5, and the damping springs 3 are installed on upper and lower sides of the installation end 20;
in order to improve the shock attenuation effect, be equipped with the movable groove 11 that supplies the activity of rolling mechanism 8 on the inner wall that installation end 20's periphery was fixed with four rolling mechanism 8 and installation pipe 1, install two sets of damping device 7 that set up from top to bottom respectively in the installation pipe 1 lateral wall, every damping device 7 of group includes two damping mechanisms that are centrosymmetric setting again, and every damping structure corresponds a rolling mechanism 8, and wherein, under the electric automobile transaxle controller quiescent condition, installation end 20 is located the balance point position:
when the distance between the mounting end 20 and the balance point is gradually increased, rolling friction exists between one group of damping mechanisms and the corresponding two rolling mechanisms 8;
when the distance between the mounting end 20 and the balance point is gradually reduced, sliding friction exists between one group of damping mechanisms and the corresponding two rolling mechanisms 8.
In this embodiment, the rolling mechanism 8 includes a support 80 and a roller 81, the support 80 is fixed on the periphery of the mounting end 20, and the roller 81 is rotatably connected with the support 80 by means of a one-way bearing 9 in the support 80.
In this embodiment, two sets of upper and lower damping device 7 are located the upper and lower both sides of balance point respectively and two sets of damping device 7 are along the crisscross setting of circumference of installation pipe 1, damping mechanism includes outer shell 70, damping piece 71, supporting spring 72 and end cover 73, outer shell 70 is fixed in the mounting hole 10 that sets up on the installation pipe 1 lateral wall, damping piece 71 sliding connection is in the guiding hole 74 that outer shell 70 front end set up and the back of damping piece 71 is fixed with and is used for spacing thrust plate 75, and thrust plate 75 sliding connection is in outer shell 70, end cover 73 is installed in the rear end of outer shell 70, the rear end of outer shell 70 is provided with floor 76, end cover 73 is connected fixedly with floor 76 with the help of the bolt, and supporting spring 72 installs between end cover 73 and thrust plate 75.
The outer periphery of the roller 81 or the front end surface of the damping block 71 is provided with an anti-slip layer to improve the friction force during sliding friction. In the present embodiment, the outer periphery of the roller 81 is provided as an anti-slip structure.
Under the default condition, the electric automobile drive axle controller is vertically arranged on the electric drive axle, and the detailed damping process of the invention is as follows:
when the automobile jolts, the electric automobile drive axle controller can rock along with the automobile, and the mounting end 2020 deviates from a balance point to move:
when the distance between the mounting end 20 and the balance point is gradually increased, for example, when the mounting end 20 deviates from the balance point and moves upwards, the one-way bearings 9 in the rolling mechanism 8 corresponding to the group of damping devices 7 arranged above are in an unlocked state and can rotate freely, rolling friction exists between the roller 81 and the damping block 71, the friction force is small and negligible, and the mounting end 20 at this time is prevented from deviating from the balance point position by the pulling force and the pushing force of the damping spring 3, so the damping is mainly performed by the damping spring 3;
when the distance between the mounting end 20 and the balance point is gradually decreased, at this time, because the mounting end 20 is in the process of returning to the balance point, the mounting end 20 is simultaneously subjected to the pulling force and the pushing force of the damping spring 3 to promote the mounting end 20 to move to the balance point position, the acceleration of the mounting end 20 is large, if the mounting end 20 moves from the highest point to the balance point below, the one-way bearing 9 in the rolling mechanism 8 corresponding to the group of damping devices 7 arranged above is in a locked state and cannot freely rotate, the sliding friction is formed between the roller 81 and the damping block 71, the friction force at this time is large to reduce the impact acceleration of the rebound oscillation of the damping spring 3, so that the bidirectional slow-release impact force effect is achieved, and meanwhile, the impact energy can be quickly consumed, so that the damping spring 3 quickly tends to be stable, and the oscillation frequency of the damping spring 3 is reduced.
The principle as to the case where the mounting end 20 is moved downward from the equilibrium point and upward from the lowest point is the same as the above-described process.
When the mounting end 20 moves above the balance point, the two rolling mechanisms 8 corresponding to the lower group of damping devices 7 may be staggered from the upper group of damping devices 7 without contacting, and similarly, when the mounting end 20 moves below the balance point, the two rolling mechanisms 8 corresponding to the upper group of damping devices 7 may be staggered from the lower group of damping devices 7 without contacting.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (7)
1. An electric automobile drive axle controller with a shock absorption function comprises a controller body (100) and shock absorption components (200) arranged on the periphery of the controller body (100), the shock absorption assembly (200) comprises an installation pipe (1), a sliding block (2) and a shock absorption spring (3), two ends of the mounting pipe (1) are provided with sealing covers (4), the mounting end (20) in the sliding block (2) is connected in the mounting pipe (1) in a sliding way, the connecting end (21) in the sliding block (2) is fixedly connected with the mounting end (20) and can be in sliding connection with an avoiding opening (6) which is arranged on the side surface of the mounting pipe (1) and is arranged along the length direction of the mounting pipe (1), the damping springs (3) are arranged on the upper side and the lower side of the mounting end (20), it is characterized in that four rolling mechanisms (8) are fixed on the periphery of the mounting end (20), a movable groove (11) for the rolling mechanisms (8) to move is arranged on the inner wall of the mounting pipe (1), two groups of damping devices (7) which are respectively arranged up and down are arranged in the side wall of the mounting pipe (1), each group of damping devices (7) comprises two damping mechanisms which are arranged in a central symmetry manner, each damping structure corresponds to one rolling mechanism (8), wherein, under electric automobile transaxle controller quiescent condition, installation end (20) are located the balanced point position:
when the distance between the mounting end (20) and the balance point is gradually increased, rolling friction exists between one group of damping mechanisms and the two corresponding rolling mechanisms (8);
when the distance between the mounting end (20) and the balance point is gradually reduced, sliding friction exists between one group of damping mechanisms and the corresponding two rolling mechanisms (8).
2. The controller of claim 1, wherein the rolling mechanism (8) comprises a support (80) and a roller (81), the support (80) is fixed on the periphery of the mounting end (20), and the roller (81) is rotatably connected with the support (80) by means of a one-way bearing (9) in the support (80).
3. The electric automobile drive axle controller with the shock absorption function according to claim 2, wherein the upper and lower two sets of damping devices (7) are respectively located at the upper and lower sides of the balance point, and the two sets of damping devices (7) are arranged along the circumferential direction of the mounting pipe (1) in a staggered manner, the damping mechanism comprises an outer shell (70), a damping block (71), a supporting spring (72) and an end cover (73), the outer shell (70) is fixed in a mounting hole (10) formed in the side wall of the mounting pipe (1), the damping block (71) is slidably connected in a guide hole (74) formed in the front end of the outer shell (70), the back surface of the damping block (71) is fixed with a thrust plate (75) for limiting, the thrust plate (75) is slidably connected in the outer shell (70), the end cover (73) is installed at the rear end of the outer shell (70), and the supporting spring (72) is installed between the end cover (73) and the thrust plate (75).
4. The controller of an electric vehicle drive axle with a shock absorption function according to claim 3, wherein the outer periphery of the roller (81) or the front end surface of the damping block (71) is provided with an anti-slip layer.
5. The controller of the drive axle of the electric vehicle with the shock absorption function according to claim 3, wherein a rib plate (76) is provided at the rear end of the outer housing (70), and the end cover (73) is fixedly connected with the rib plate (76) by means of a bolt.
6. The controller of claim 1, wherein a mounting seat (5) is further mounted on one of the covers (4).
7. The drive axle controller of an electric vehicle with a shock absorption function as claimed in claim 1, wherein the connecting end (21) is provided with a connecting hole (210) for connecting with the controller body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210896981.7A CN115163741B (en) | 2022-07-28 | 2022-07-28 | Electric automobile drive axle controller with shock-absorbing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210896981.7A CN115163741B (en) | 2022-07-28 | 2022-07-28 | Electric automobile drive axle controller with shock-absorbing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115163741A true CN115163741A (en) | 2022-10-11 |
| CN115163741B CN115163741B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210896981.7A Active CN115163741B (en) | 2022-07-28 | 2022-07-28 | Electric automobile drive axle controller with shock-absorbing function |
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| JP2011012750A (en) * | 2009-07-02 | 2011-01-20 | Oiles Corp | One-way rotating damper, hinge mechanism with the damper, opening and closing mechanism and range hood |
| CN103291683A (en) * | 2012-02-24 | 2013-09-11 | 刘素华 | Method for utilizing rolling friction to centralize piston rod to do reciprocating motion and actuating device for utilizing rolling friction to centralize piston rod to do reciprocating motion through implementing method |
| CN106051037A (en) * | 2016-08-01 | 2016-10-26 | 盐城工业职业技术学院 | Mechanical one-way damper |
| CN111594567A (en) * | 2020-05-26 | 2020-08-28 | 安徽江淮汽车集团股份有限公司 | Integrated electric drive axle controller damping device |
| CN112211943A (en) * | 2020-10-27 | 2021-01-12 | 常州大学 | Metal vibration isolator with additional damping force proportional to vibration displacement |
| CN113074205A (en) * | 2021-03-23 | 2021-07-06 | 常州大学 | Metal vibration isolator with unidirectional motion damping |
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2022
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| CN112211943A (en) * | 2020-10-27 | 2021-01-12 | 常州大学 | Metal vibration isolator with additional damping force proportional to vibration displacement |
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| CN113153953A (en) * | 2021-04-22 | 2021-07-23 | 安徽工程大学 | Novel shock absorber |
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|---|
| 时培成;陈黎卿;韦山;王立涛;: "麦弗逊式独立悬架运动分析", 机械传动, no. 01, pages 93 - 96 * |
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| Publication number | Publication date |
|---|---|
| CN115163741B (en) | 2024-03-01 |
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