CN115111302B - Damping device for electric drive axle controller - Google Patents
Damping device for electric drive axle controller Download PDFInfo
- Publication number
- CN115111302B CN115111302B CN202210896614.7A CN202210896614A CN115111302B CN 115111302 B CN115111302 B CN 115111302B CN 202210896614 A CN202210896614 A CN 202210896614A CN 115111302 B CN115111302 B CN 115111302B
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- Prior art keywords
- mounting
- damping device
- heat conducting
- piston
- drive axle
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- 238000013016 damping Methods 0.000 title claims abstract description 76
- 238000009434 installation Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000010720 hydraulic oil Substances 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 9
- 230000010355 oscillation Effects 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3292—Sensor arrangements
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/42—Cooling arrangements
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/54—Arrangements for attachment
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/0011—Balancing, e.g. counterbalancing to produce static balance
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- 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
- F16F2230/00—Purpose; Design features
- F16F2230/08—Sensor arrangement
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/10—Enclosure elements, e.g. for protection
- F16F2230/105—Flexible, e.g. bellows or bladder
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- 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
- F16F2230/00—Purpose; Design features
- F16F2230/42—Multiple pistons
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- 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)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a damping device for an electric drive axle controller, which relates to the technical field of installation of automobile electric drive axle controllers, and comprises an installation tube, a sliding block, damping springs, a sealing cover and a hydraulic damping device, wherein the two hydraulic damping devices are communicated by virtue of a connecting tube; and the process does not generate a great deal of heat and material loss, and is convenient to maintain and low in cost.
Description
Technical Field
The invention belongs to the technical field of installation of an electric drive axle controller of an automobile, and particularly relates to a damping device for the electric drive axle controller.
Background
The core components (such as a motor and a controller) of the electric drive system in the electric drive axle are all positioned below the whole vehicle shock absorber, and as a plurality of precise electronic components are assembled in the controller, if the running road conditions are relatively bumpy, the precise electronic components are easy to damage. But traditional damping 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-mentioned problems is disclosed, which uses a plurality of friction damping forces between the damping structures and the inner wall of the mounting seat to reduce the impact acceleration of spring rebound oscillation, so as to play a role in bi-directional impact force slow release, and at the same time, can quickly consume impact energy, so that the damping spring quickly tends to be stable, and the oscillation times of the damping spring are reduced. However, due to the fact that the damping blocks in the damping structure are frequently rubbed with the damping grooves, a large amount of heat is generated in the process, the evaporation of lubricating grease can be accelerated, the probability of clamping stagnation in the later period is increased, the damping blocks are worn to a certain extent in the friction process, replacement is needed, and the damping blocks are inconvenient. Therefore, it is necessary to make further optimization design for the existing damping device.
Disclosure of Invention
The present invention aims to provide a damping device for an electric drive axle controller, which solves the above-mentioned drawbacks caused by the prior art.
The utility model provides a damping device for electric drive axle controller, includes installation tube, slider and damping spring, the closing cap is installed at the both ends of installation tube, installation end sliding connection in the slider is in the installation tube, link and installation end fixed connection in the slider and can with installation tube side setting dodge open sliding connection along installation tube length direction setting, damping spring installs in the upper and lower both sides of installation end, and a hydraulic damping device is still installed respectively to the upper and lower both sides of installation end, damping spring cover is located hydraulic damping device's periphery and is located between closing cap and the installation end, communicates with the help of the connecting pipe between two hydraulic damping devices, and the middle section of connecting pipe is provided with electric throttle valve in order to realize the flow adjustment of hydraulic oil in the connecting pipe, still be provided with non-contact ranging device on the installation tube on the upper and lower both sides direction of connecting end respectively, electric throttle valve and non-contact ranging device all electric connection to control module, and installation end are located equilibrium point position under the static state of electric drive axle controller:
when the distance between the mounting end and the balance point is gradually increased, the electric throttle valve is in a closed state;
when the distance between the mounting end and the balance point is gradually reduced, the electric throttle valve is in an open state.
Preferably, the hydraulic damping device comprises a piston rod, a rubber piston and a piston cylinder, one end of the piston rod is connected with the mounting end, the other end of the piston rod is connected to the rubber piston, the rubber piston is slidably connected in the piston cylinder filled with hydraulic oil, the other end of the piston cylinder is mounted in a base arranged on the sealing cover, and hydraulic oil is filled in the connecting pipe.
Preferably, the base is provided with a mounting groove matched with the piston cylinders, an annular step for positioning the damping spring and a through hole penetrating through the base, the base and the mounting pipe are also provided with notches for mounting connecting pipes, two ends of each connecting pipe are respectively connected with oil pipe joints arranged on the two piston cylinders, and the damping spring is positioned between the sealing cover and the annular step.
Preferably, the non-contact distance measuring device comprises a support and a non-contact distance measuring sensor, wherein the non-contact distance measuring sensor is installed on the installation tube by means of the support, and the signal transmitting end of the non-contact distance measuring sensor faces the installation end.
Preferably, the connecting pipe is a hard connecting pipe.
Preferably, one of the covers is also provided with a mounting seat.
Preferably, the connecting end is provided with a mounting hole for being connected with the controller.
Preferably, the hydraulic oil cooling device further comprises a heat dissipation assembly, and specifically comprises a first heat conduction plate, a second heat conduction plate, a heat conduction rod and an air bag, wherein the first heat conduction plate is respectively arranged on one side, facing hydraulic oil, of the two pistons, the second heat conduction plate is arranged in a heat conduction cavity arranged in the sliding block and divides the heat conduction cavity into an upper cavity and a lower cavity, the first heat conduction plate is connected to the upper side and the lower side of the heat conduction plate through the heat conduction rod penetrating through the rubber piston, the piston rod and the sliding block, the two cavities are respectively communicated with the outside through the first communication holes arranged in the sliding block up and down, the air bag is arranged between the piston cylinder and the sliding block, and the second communication holes for communicating the air bag and the heat conduction cavity are formed in one end, facing the sliding block, of the piston rod.
The invention has the advantages that:
1. the motion relation between the mounting end and the balance point is deduced by means of the distance information measured by the non-contact distance measuring device, so that the starting and stopping state of the hydraulic damping device is controlled, the impact acceleration of rebound oscillation of the damping spring is reduced, the bidirectional impact force slow-release effect is achieved, meanwhile, impact energy can be rapidly consumed, the damping spring rapidly tends to be stable, and the oscillation times of the damping spring are reduced; and the process does not generate a great deal of heat and material loss, and is convenient to maintain and low in cost.
2. The heat of hydraulic oil can be transmitted to the second heat-conducting plate arranged at the center of the sliding block by means of the first heat-conducting plate and the heat-conducting rod, and when the sliding block moves up and down, the upper air bag and the lower air bag can be continuously compressed and stretched, air circulation is carried out with outside air by means of the first communication hole and the second communication hole, heat dissipation is accelerated, and the upper heat-conducting plate and the lower heat-conducting plate share the second heat-conducting plate for heat dissipation, so that the heat exchange between the second heat-conducting plate and the outside air can be realized no matter whether the sliding block moves up or down, and the heat dissipation efficiency is improved to the greatest extent.
Drawings
Fig. 1 and fig. 2 are schematic structural views of embodiment 1 according to the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a cross-sectional view taken along A-A in fig. 3.
Fig. 5 is a schematic structural view of the slider.
Fig. 6 and 7 are schematic views of the base portion from different angles.
Fig. 8 is a cross-sectional view of example 2.
Wherein: the hydraulic damping device comprises a mounting tube 1, a sliding block 2, a mounting end 20, a connecting end 21, a mounting hole 210, a damping spring 3, a sealing cover 4, a base 40, a notch 41, a mounting groove 42, a through hole 43, an annular step 44, a mounting seat 5, an avoidance opening 6, a hydraulic damping device 7, a piston rod 70, a rubber piston 71, a piston cylinder 72, an oil pipe joint 73, a non-contact distance measuring device 8, a supporting seat 80, a non-contact distance measuring sensor 81, a connecting tube 9, an electric throttle valve 10, a heat radiating component 11, a heat conducting plate 110, a heat conducting plate 111, a heat conducting rod 112, an air bag 113, a heat conducting cavity 114, a communication hole 115I and a communication hole 116 II.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 7, a damping device for an electric drive axle controller comprises a mounting tube 1, a sliding block 2 and a damping spring 3, wherein sealing covers 4 are mounted at two ends of the mounting tube 1, a mounting seat 5 is mounted on one sealing cover 4, a mounting end 20 in the sliding block 2 is slidably connected in the mounting tube 1, a connecting end 21 in the sliding block 2 is fixedly connected with the mounting end 20 and can be slidably connected with an avoidance opening 6 which is arranged on the side surface of the mounting tube 1 and is arranged along the length direction of the mounting tube 1, a mounting hole 210 for being connected with the controller is formed in the connecting end 21, the damping spring 3 is mounted on the upper side and the lower side of the mounting end 20, a hydraulic damping device 7 is mounted on the upper side and the lower side of the mounting end 20 respectively, the damping spring 3 is sleeved on the periphery of the hydraulic damping device 7 and is positioned between the sealing covers 4 and the mounting end 20, two hydraulic damping devices 7 are communicated by means of a connecting tube 9, an electric throttle 10 is arranged in the middle section of the connecting tube 9 so as to realize flow adjustment of hydraulic oil in the 9, a distance measuring device is mounted on the upper side and lower side of the connecting end 21 along with the length direction of the mounting tube 1, a distance measuring device is also arranged on the upper side of the connecting tube and the electric throttle 10 and the electric throttle device is in a corresponding distance measuring device 8, and the distance measuring device is used for making a distance measuring device 8 and a distance measuring device is used for measuring and a distance measuring device 8.
In this embodiment, the hydraulic damping device 7 includes a piston rod 70, a rubber piston 71, and a piston cylinder 72, one end of the piston rod 70 is connected to the mounting end 20, the other end of the piston rod 70 is connected to the rubber piston 71, the rubber piston 71 is slidably connected in the piston cylinder 72 filled with hydraulic oil, the other end of the piston cylinder 72 is mounted in a base 40 provided on the cover 4, hydraulic oil is also filled in the connecting pipe 9, the connecting pipe 9 is a rigid connecting pipe 9, so as to facilitate the installation of the electric throttle 10 and ensure the stability of the connecting pipe 9 during the bump process of the vehicle, the base 40 is provided with a mounting groove 42 matched with the piston cylinder 72, an annular step 44 for positioning the damping spring 3, and a through hole 43 penetrating the base 40, the base 40 and the mounting pipe 1 are further provided with notches 41 for mounting the connecting pipe 9, two ends of the connecting pipe 9 are respectively connected with oil pipe joints 73 provided on the two piston cylinders 72, and the damping spring 3 is located between the cover 4 and the annular step 44.
In this embodiment, the non-contact ranging device 8 includes a support 80 and a non-contact ranging sensor 81 (such as an ultrasonic ranging sensor), the non-contact ranging sensor 81 is mounted on the mounting tube 1 by means of the support 80, and a signal transmitting end of the non-contact ranging sensor 81 faces the mounting end 20.
In the present invention, a plurality of the above-mentioned damping devices are connected to the controller by means of the slider 2, the damping device is further connected to the electric drive axle by means of the mounting seat 5, the mounting end 20 is located at the position of the balance point in the rest state of the electric drive axle controller, if the hydraulic damping device 7 is horizontally disposed, the distance between the mounting end 20 and the two non-contact ranging sensors 81 is equal due to the elastic force of the two damping springs 3 having the same parameters, the balance point position of the mounting end 20 is located at the midpoint position between the two non-contact ranging sensors 81, if the hydraulic damping device 7 is vertically disposed, the balance point of the mounting end 20 may be located below the midpoint position between the two non-contact ranging sensors 81 due to the dead weight of the controller, so the position of the balance point may change the mounting form of the controller, and the movement relationship between the mounting end 20 and the balance point is inferred by means of the distance information measured by the two non-contact ranging sensors 81:
when the vehicle jolts, the controller will also jolt, and the mounting end 20 will move away from the equilibrium point:
when the distance between the mounting end 20 and the balance point is gradually increased, the electric throttle valve 10 is in a closed state, and the mounting end 20 at this time is mainly damped by means of the damping spring 3 because the mounting end 20 is simultaneously subjected to the tension and the thrust of the damping spring 3 to prevent the mounting end 20 from moving away from the balance point;
when the distance between the installation end 20 and the balance point gradually decreases, at this time, because the installation end 20 is in the process of resetting to the balance point, the installation end 20 is simultaneously subjected to the tension and the thrust of the damping spring 3 to promote the installation end 20 to move towards the balance point, and the acceleration of the installation end 20 is large, so the electric throttle valve 10 is in an open state, the hydraulic oil flow cross-sectional area of the middle section part of the connecting pipe 9 is reduced, the resistance of the rubber piston 71 to move is increased, the impact acceleration of rebound oscillation of the damping spring 3 is reduced, the bidirectional impact force slow-release effect is played, meanwhile, the impact energy can be rapidly consumed, the damping spring 3 rapidly tends to be stable, and the oscillation times of the damping spring 3 are reduced.
Example 2
As shown in fig. 8, in this solution, a great amount of heat is generated when the frequency of the back and forth movement of the rubber piston increases to a certain value (f is greater than or equal to 10 Hz) in the working process of the hydraulic damping device 7, and the piston cylinder 72 and the piston rod 70 are partially located in the relatively closed mounting tube 1, so that the heat dissipation condition is poor, and especially when the hydraulic damping device is in a high-temperature working condition, the viscosity and the volumetric efficiency of hydraulic oil are reduced, and the aging and deterioration of the rubber sealing element are accelerated and the service life of the rubber sealing element is shortened, so that the corresponding heat dissipation assembly 11 is considered to be arranged in the damping device to solve the above problems. The hydraulic oil pump specifically comprises a first heat conducting plate 110, a second heat conducting plate 111, a heat conducting rod 112 and an air bag 113, wherein the first heat conducting plate 110 is respectively arranged on one side, facing hydraulic oil, of the two pistons, the second heat conducting plate 111 is arranged in a heat conducting cavity 114 arranged in the sliding block 2 and divides the heat conducting cavity 114 into an upper cavity and a lower cavity, the first heat conducting plate 110 is connected to the upper side and the lower side of the heat conducting plate through the heat conducting rod 112 penetrating through the rubber piston 71, the piston rod 70 and the sliding block 2, the two cavities are respectively communicated with the outside through a first communication hole 115 arranged in the sliding block 2 up and down, the air bag 113 is arranged between the piston cylinder and the sliding block 2, and a second communication hole 116 for communicating the air bag 113 and the heat conducting cavity 114 is arranged at one end, facing the sliding block 2, of the piston rod 70. In order to facilitate the assembly of the second heat-conducting plate 111, the slider 2 may be provided in a structure of two symmetrical upper and lower parts, and fixed by means of bolts or welding. The number of the heat conduction rods 112 may be plural and arranged along the axial center of the piston rod 70, and the second communication holes 116 may be plural and avoid the heat conduction rods 112.
The heat of the hydraulic oil is transferred to the second heat conducting plate 111 located at the center of the sliding block 2 by means of the first heat conducting plate 110 and the heat conducting rod 112, and when the sliding block 2 moves up and down, the upper and lower two air bags 113 are continuously compressed and stretched, and air circulation is performed with the outside air by means of the first communication holes 115 and the second communication holes, so that heat dissipation is accelerated, and the first heat conducting plate 110 and the second heat conducting plate 111 share one heat conducting plate 111 for heat dissipation, so that no matter the sliding block 2 moves up or down, heat exchange between the second heat conducting plate 111 and the outside air can be realized, and heat dissipation efficiency is improved to the greatest extent.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (6)
1. The utility model provides a damping device for electric drive axle controller, includes mounting tube (1), slider (2) and damping spring (3), closing cap (4) are installed at the both ends of mounting tube (1), installation end (20) sliding connection in slider (2) are in mounting tube (1), link (21) in slider (2) and installation end (20) fixed connection and can with mounting tube (1) side setting dodge opening (6) sliding connection along mounting tube (1) length direction setting, damping spring (3) install in the upper and lower both sides of installation end (20), and characterized in that, a hydraulic damping device (7) are still installed respectively to the upper and lower both sides of installation end (20), the periphery of hydraulic damping device (7) is located to damping spring (3) cover and is located between connecting tube (4) and installation end (20), and with the help of connecting tube (9) intercommunication between two hydraulic damping device (7), be provided with electric throttle (10) in order to realize in connecting tube (9) along the length direction setting dodging opening (6) sliding connection of mounting tube, hydraulic oil (8) are connected to upper and lower side setting up electric throttle device (8) respectively on distance measurement module (8) and are not contact respectively, the installation end (20) is positioned at the balance point position under the static state of the electric drive axle controller:
when the distance between the mounting end (20) and the balance point is gradually increased, the electric throttle valve (10) is in a closed state;
when the distance between the mounting end (20) and the balance point is gradually reduced, the electric throttle valve (10) is in an open state;
the hydraulic damping device (7) comprises a piston rod (70), a rubber piston (71) and a piston cylinder (72), one end of the piston rod (70) is connected with the mounting end (20), the other end of the piston rod (70) is connected to the rubber piston (71), the rubber piston (71) is slidably connected in the piston cylinder (72) filled with hydraulic oil, the other end of the piston cylinder (72) is mounted in a base (40) arranged on the sealing cover (4), and hydraulic oil is filled in the connecting pipe (9);
be equipped with on base (40) with piston tube (72) matched with mounting groove (42), be used for location damping spring (3) annular step (44) and link up through-hole (43) of base (40), still be equipped with on base (40) and mounting tube (1) be used for installing breach (41) of connecting pipe (9), the both ends of connecting pipe (9) are connected with oil pipe joint (73) that set up on two piston tubes (72) respectively, damping spring (3) are located between closing cap (4) and annular step (44).
2. Damping device for an electric drive axle controller according to claim 1, characterized in that the non-contact distance measuring device (8) comprises a support (80) and a non-contact distance measuring sensor (81), the non-contact distance measuring sensor (81) being mounted on the mounting tube (1) by means of the support (80) with the signal transmitting end of the non-contact distance measuring sensor (81) facing the mounting end (20).
3. Damping device for an electric drive axle controller according to claim 1, characterized in that the connecting tube (9) is a rigid connecting tube (9).
4. Damping device for an electric drive axle controller according to claim 1, characterized in that one of the covers (4) is also fitted with a mounting seat (5).
5. A damping device for an electric drive axle controller according to claim 1, characterized in that the connection end (21) is provided with a mounting hole (210) for connection with the controller.
6. The damping device for an electric drive axle controller according to claim 1, further comprising a heat dissipating assembly (11), specifically comprising a first heat conducting plate (110), a second heat conducting plate (111), a heat conducting rod (112) and an air bag (113), wherein the first heat conducting plate (110) is respectively mounted on one side of the two pistons facing hydraulic oil, the second heat conducting plate (111) is mounted in a heat conducting cavity (114) arranged in the sliding block (2) and divides the heat conducting cavity (114) into an upper chamber and a lower chamber, the first heat conducting plate (110) is connected to the upper side and the lower side of the second heat conducting plate (111) through the heat conducting rod (112) penetrating through the rubber piston (71), the piston rod (70) and the sliding block (2), the two chambers are respectively communicated with the outside by means of a first communication hole (115) arranged in the sliding block (2), the air bag (113) is mounted between the piston cylinder and the sliding block (2), and one end of the piston rod (70) facing the sliding block (2) is provided with a second heat conducting cavity (116) communicated with the air bag (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210896614.7A CN115111302B (en) | 2022-07-28 | 2022-07-28 | Damping device for electric drive axle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210896614.7A CN115111302B (en) | 2022-07-28 | 2022-07-28 | Damping device for electric drive axle controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115111302A CN115111302A (en) | 2022-09-27 |
| CN115111302B true CN115111302B (en) | 2024-03-01 |
Family
ID=83334045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210896614.7A Active CN115111302B (en) | 2022-07-28 | 2022-07-28 | Damping device for electric drive axle controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115111302B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8307678D0 (en) * | 1983-03-19 | 1983-04-27 | Riley K | Clamping devices |
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| CN115111302A (en) | 2022-09-27 |
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