Electrically-driven adjustable suspension
Technical Field
The invention relates to an electrically-driven adjustable suspension, and belongs to the field of electric automobiles.
Background
Because the electric automobile is driven by a motor, the torque output and the endurance capacity of the electric automobile are weaker than those of an internal combustion engine, and therefore other parts in the automobile are required to be lightened to ensure the endurance capacity of the electric automobile; therefore, it is necessary to provide a suspension damping mechanism with relatively low weight and stable performance; the existing electromagnetic suspension driven by a linear motor mainly depends on a large linear motor arranged on a suspension connecting rod to replace a spring and a damping rod to perform damping work, but because the linear motor is arranged on the suspension, the linear motor with relatively large weight can influence the sensitivity of the suspension and the steering sensitivity to a certain extent, the driving experience is influenced, and meanwhile, the duration is also influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem that the weight of a spring suspension is large in the prior art is solved, and the electrically-driven adjustable suspension is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an electrically-driven adjustable suspension comprises a steering connecting frame, a connecting rod assembly, a sliding rod assembly and a motor resistance-increasing assembly; the connecting rod assembly comprises a driving shaft connecting frame, and a driving shaft connecting hole is formed in the middle of the driving shaft connecting frame; the connecting rod assembly further comprises a top connecting rod and a bottom connecting rod, one end of the top connecting rod is rotatably connected to the middle part of the driving shaft connecting frame, the other end of the top connecting rod is rotatably connected to the top of the steering connecting frame, one end of the bottom connecting rod is rotatably connected to the bottom of the driving shaft connecting frame, and the other end of the bottom connecting rod is rotatably connected to the bottom of the steering connecting frame; the sliding bar assembly comprises a bottom sliding bar and a top sliding bar, wherein the bottom sliding bar comprises a telescopic sleeve, one end of the telescopic sleeve is rotatably connected to the middle part of the bottom connecting rod, and the other end of the telescopic sleeve is rotatably connected to the top of the steering connecting frame; the telescopic sleeve comprises a telescopic rod and a telescopic sleeve, the telescopic rod and the telescopic sleeve are mutually connected in a sliding manner, the end part of the telescopic rod is rotatably connected with the middle part of the bottom connecting rod, and the top part of the telescopic sleeve is rotatably connected with the steering connecting frame; the top sliding bar comprises a linear connecting rod, and one end of the linear connecting rod is rotatably connected with the middle part of the top connecting rod; a top sliding sleeve is sleeved in the middle of the linear connecting rod, a linear sliding rod is connected inside the linear connecting rod in a sliding mode, the end portion of the linear sliding rod is rotatably connected with the top of the steering connecting frame, and a sliding limiting plate is arranged at the end portion of the linear connecting rod and used for limiting the top sliding sleeve; the motor resistance-increasing assembly comprises a rotating motor, the rotating motor is fixed on the steering connecting frame, and two steering commutators are respectively arranged at two axial ends of the rotating motor and respectively defined as a top steering commutator and a bottom steering commutator; the steering reverser comprises a rotating shell fixedly connected with the steering connecting frame, the rotating shell is also fixedly connected with the shell of the rotating motor, a rotating cavity is arranged in the rotating shell, a driving gear is rotatably connected in the rotating cavity, and the central part of the driving gear is fixedly connected to a rotating shaft of the rotating motor; the rotating cavity is provided with a rotating shaft, a plurality of tooth sockets meshed with the driving gear are arranged in the middle of the rotating shaft in a linear array mode, and the rotating shaft is connected with the rotating shaft in a rotating mode; the top sliding sleeve is rotatably connected with a push rod A through a coupler, the end part of the push rod A is fixed in a connecting hole of the top steering reverser, the bottom sliding sleeve is rotatably connected with a push rod B through a coupler, and the end part of the push rod B is fixed in a connecting hole of the bottom steering reverser.
As a further improvement of the invention, a guide rod is fixed on one end of the slide rod, which is opposite to the connecting hole, a sliding support sleeve is arranged at the tail of the moving sleeve, the sliding support sleeve is connected with the guide rod in a sliding manner, a tail limiting plate is arranged at the tail of the guide rod, a support spring sleeved on the guide rod is arranged between the end of the slide rod and the sliding support sleeve, and a front limiting plate is also arranged at the end of the slide rod, which is provided with the connecting hole.
As a further improvement of the invention, the interior of the telescopic sleeve is of a hollow structure, the top of the hollow structure is provided with a damping volume adjusting mechanism, the damping volume adjusting mechanism comprises a sealing sleeve, the middle part of the sealing sleeve is coaxially and fixedly connected with a liquid level sleeve, and a plurality of damping liquid flowing holes A are arranged on the liquid level sleeve in an array manner; the top of the sealing sleeve is also provided with a linear stepping motor, an output shaft of the linear stepping motor is connected with a pressure plate, an annular separating ring is arranged between the liquid level sleeve and the inner wall of the sealing sleeve, and the separating ring is connected with the periphery of the pressure plate through a connecting spring; the middle part of the linear stepping motor is fixedly connected with a partition plate through a connecting rod, and the partition plate is connected with the inner wall of the liquid level sleeve in a sliding and sealing manner; the bottom of the liquid level sleeve extends out of the end part of the sealing sleeve, the end part of the liquid level sleeve is fixedly connected with an oil inlet sleeve, the top end of the oil inlet sleeve is provided with a plurality of damping liquid flow holes B, one side of the oil inlet sleeve facing the inside of the liquid level sleeve is also fixedly provided with a valve block A for covering the damping liquid flow holes B, the end part of the sealing sleeve is provided with a plurality of damping liquid flow holes C, and the outer side of the end part of the sealing sleeve is also fixedly provided with an annular valve block B; the oil inlet sleeve is hermetically connected with a damping inner rod; the interior of the telescopic rod is also of a hollow structure, the end part of the telescopic rod is provided with a sealing piston A, the sealing piston A is connected with the inner wall of the telescopic sleeve in a sliding and sealing way, the damping inner rod is connected with the middle part of the sealing piston A in a sliding and sealing way, a plurality of damping liquid flowing holes F are arranged on the sealing piston A in an array way and are communicated with the inside of the telescopic rod, the end part of the damping inner rod is also provided with a plurality of damping liquid flowing holes D, a valve plate C for covering the damping liquid flowing holes D is fixed at the end part of the damping inner rod facing the inner side of the damping inner rod, the end part of the damping inner rod is provided with a sealing piston B which is connected with the inner wall of the telescopic rod in a sliding and sealing way, the damping piston is characterized in that a plurality of damping liquid flow holes E are formed in the sealing piston B in an array mode, and a valve plate D used for covering the damping liquid flow holes E is arranged on one side, facing the end portion of the damping inner rod, of the sealing piston B.
As a further improvement of the invention, a plurality of compression screws are arranged on the inner wall array of the connecting hole, and the push rod A and the push rod B are compressed and fixed on the inner wall of the connecting hole through the compression screws.
As a further improvement of the invention, a connecting arm is fixed on the top sliding sleeve, an adjusting sleeve is rotatably connected on the connecting arm, the adjusting sleeve is sleeved on the push rod A, a bent part with an obtuse angle is arranged in the middle of the push rod A, a plurality of compression screws B are arranged on the adjusting sleeve in an array mode, and the push rod A is clamped through the compression screws B.
The invention has the beneficial effects that:
1. the rotary motor can be fixed on an automobile frame, a reversing mechanism is utilized to support part of the sliding sleeve, and the vibration of the suspension is restrained through the resistance increasing of the sliding sleeve to realize shock absorption; and each spring of this structure all adopts the less light spring of steel wire diameter, and the spring of this structure only plays the supporting role, does not play the cushioning effect.
2. The supporting spring can effectively prevent the sliding rod from impacting the end part of the moving sleeve, and meanwhile, the moving limit of the sliding rod is realized, and the sliding rod is prevented from being loosened due to the overlarge moving amount of the sliding rod.
3. The telescopic link is damping cavity volume adjustable, through the volume of floating of adjusting the damping oil pocket, the flexible stroke of telescopic link that can quick change to the hardness of convenient adjustment suspension.
4. The compression screw is fixed and is easy to disassemble and adjust.
5. The push rod A with a bent structure can adapt to buffer torsion of an integral structure, and has longer service life compared with a straight rod.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a telescoping sleeve;
FIG. 3 is a schematic view of the construction of the diverter;
in the figure: 1. a drive shaft connection frame; 2. a bottom link; 3. a top link; 4. a bogie connecting frame; 5. a telescopic rod; 6. a telescopic sleeve; 7. a bottom sliding sleeve; 8. an adjusting sleeve; 9. a support plate; 10. a telescopic sleeve; 11. a linear connecting rod; 12. supporting the sliding sleeve; 13. a top sliding sleeve; 14. a connecting arm; 15. a push rod A; 16. a push rod B; 17. a rotating electric machine; 18. a steering reverser; 19. a bending section; 20. a drive gear; 21. a slide bar; 22. a tooth socket; 23. a guide bar; 24. a support spring; 25. a tail limiting plate; 26. connecting holes; 27. a front limiting plate; 28. a compression screw; 29. rotating the housing; 30. an output shaft; 31. sealing sleeves; 32. a linear stepper motor; 33. pressing a plate; 34. a spacer ring; 35. a partition plate; 36. a connecting spring; 37. a liquid level sleeve; 38. a damping fluid flow orifice A; 39. an oil inlet sleeve; 40. a damping inner rod; 41. a sealing piston A; 42. a valve plate C; 43. a sealing piston B; 44. a damping fluid flow orifice C; 45. a valve plate B; 46. a damping fluid flow orifice B; 47. a valve plate A; 48. a damping fluid flow orifice E; 49. a valve plate D; 50. a damping fluid flow orifice D; 51. damping fluid flow orifices F.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, the invention relates to an electrically-driven adjustable suspension, which comprises a steering connecting frame 4, a connecting rod assembly, a slide bar assembly and a motor resistance-increasing assembly; the connecting rod assembly comprises a driving shaft connecting frame 1, and a driving shaft connecting hole 26 is formed in the middle of the driving shaft connecting frame 1; the connecting rod assembly further comprises a top connecting rod 3 and a bottom connecting rod 2, one end of the top connecting rod 3 is rotatably connected to the middle part of the driving shaft connecting frame 1, the other end of the top connecting rod 3 is rotatably connected to the top of the steering connecting frame 4, one end of the bottom connecting rod 2 is rotatably connected to the bottom of the driving shaft connecting frame 1, and the other end of the bottom connecting rod 2 is rotatably connected to the bottom of the steering connecting frame 4; the sliding bar assembly comprises a bottom sliding bar and a top sliding bar, wherein the bottom sliding bar comprises a telescopic sleeve 6, one end of the telescopic sleeve 6 is rotatably connected to the middle part of the bottom connecting rod 2, and the other end of the telescopic sleeve 6 is rotatably connected to the top of the steering connecting frame 4;
as shown in fig. 2, the telescopic sleeve 6 comprises a telescopic rod 5 and a telescopic sleeve 10, the telescopic rod 5 and the telescopic sleeve 10 are connected with each other in a sliding manner, the end part of the telescopic rod 5 is rotatably connected with the middle part of the bottom connecting rod 2, the top part of the telescopic sleeve 10 is rotatably connected with the steering connecting frame 4, the inside of the telescopic sleeve 10 is of a hollow structure, a damping volume adjusting mechanism is arranged at the hollow top part, the damping volume adjusting mechanism comprises a sealing sleeve 31, the middle part of the sealing sleeve 31 is coaxially and fixedly connected with a liquid level sleeve 37, and a plurality of damping liquid flowing holes a38 are arranged on the liquid level sleeve 37 in an array manner; a linear stepping motor 32 is further arranged at the top of the sealing sleeve 31, a pressure plate 33 is connected to an output shaft 30 of the linear stepping motor 32, an annular separating ring 34 is arranged between the liquid level sleeve 37 and the inner wall of the sealing sleeve 31, and the separating ring 34 is connected with the periphery of the pressure plate 33 through a connecting spring 36; the middle part of the linear stepping motor 32 is also fixedly connected with a partition plate 35 through a connecting rod, and the partition plate 35 is connected with the inner wall of the liquid level sleeve 37 in a sliding and sealing manner; the bottom of the liquid level sleeve 37 extends out of the end of the sealing sleeve 31, the end of the liquid level sleeve 37 is fixedly connected with an oil inlet sleeve 39, the top end of the oil inlet sleeve 39 is provided with a plurality of damping liquid flow holes B46, one side of the oil inlet sleeve 39 facing the inside of the liquid level sleeve 37 is also fixedly provided with a valve plate A47 used for covering the damping liquid flow holes B46, the end of the sealing sleeve 31 is provided with a plurality of damping liquid flow holes C44, and the outer side of the end of the sealing sleeve 31 is also fixedly provided with an annular valve plate B45; the oil inlet sleeve 39 is hermetically connected with a damping inner rod 40; the interior of the telescopic rod 5 is also of a hollow structure, the end part of the telescopic rod 5 is provided with a sealing piston A41, the sealing piston A41 is connected with the inner wall of the telescopic sleeve 10 in a sliding and sealing way, the damping inner rod 40 is connected with the middle part of a sealing piston A41 in a sliding and sealing way, a plurality of damping liquid flowing holes F51 are arranged on the sealing piston A41 in an array way and are communicated with the inside of the telescopic rod 5, the end part of the damping inner rod 40 is also provided with a plurality of damping liquid flow holes D50, a valve plate C42 for covering the damping liquid flow holes D50 is fixed at the end part of the damping inner rod 40 facing the inner side of the damping inner rod 40, the end part of the damping inner rod 40 is provided with a sealing piston B43, the sealing piston B43 is connected with the inner wall of the telescopic rod 5 in a sliding and sealing way, a plurality of damping liquid flow holes E48 are formed in the sealing piston B43 in an array mode, and a valve plate D49 used for covering the damping liquid flow holes E48 is arranged on one side, facing the end portion of the damping inner rod 40, of the sealing piston B43;
the top sliding bar comprises a linear connecting rod 11, and one end of the linear connecting rod 11 is rotatably connected with the middle part of the top connecting rod 3; a top sliding sleeve 13 is sleeved in the middle of the linear connecting rod 11, a linear sliding rod 21 is connected in the linear connecting rod in a sliding mode, the end portion of the linear sliding rod 21 is rotatably connected with the top of the steering connecting frame 4, and a sliding limiting plate is arranged at the end portion of the linear connecting rod and used for limiting the top sliding sleeve 13; the motor resistance-increasing component comprises a rotating motor 17, and the rotating motor 17 is fixed on the steering connecting frame 4;
as shown in fig. 3, two axial ends of the rotating electrical machine 17 are respectively provided with a steering reverser 18, which is respectively defined as a top steering reverser 18 and a bottom steering reverser 18; the steering reverser 18 comprises a rotating shell 29 fixedly connected with the steering connecting frame 4, the rotating shell 29 is also fixedly connected with the shell of the rotating motor 17, a rotating cavity is arranged in the rotating shell 29, a driving gear 20 is rotatably connected in the rotating cavity, and the central part of the driving gear 20 is fixedly connected to the rotating shaft of the rotating motor 17; a moving sleeve is further arranged in the tangential direction of the rotating cavity, the middle of the moving sleeve is communicated with the rotating cavity, a sliding rod 21 is connected to the inner portion of the moving sleeve in a sliding mode, a plurality of tooth grooves 22 meshed with the driving gear 20 are formed in the middle of the sliding rod 21 in a linear array mode, a connecting hole 26 is coaxially formed in the middle of the sliding rod 21, a guide rod 23 is fixed to one end, opposite to the connecting hole 26, of the sliding rod 21, a sliding support sleeve is arranged at the tail of the moving sleeve, the sliding support sleeve is connected with the guide rod 23 in a sliding mode, a tail limiting plate 25 is arranged at the tail of the guide rod 23, a support spring 24 sleeved on the guide rod 23 is arranged between the end portion of the sliding rod 21 and the sliding support sleeve, and a front limiting plate 27 is further arranged at the end portion; be fixed with a linking arm 14 on the sliding sleeve 13 of top, it is connected with an adjusting collar 8 to rotate on the linking arm 14, and 8 middle parts of adjusting collar are fixed with a push rod, and the middle part of push rod A15 is provided with an angle and is obtuse bend 19, and the array is provided with a plurality of housing screw 28B on the adjusting collar 8, presss from both sides tight push rod A15 through housing screw 28B, and push rod A15 end fixing is in the connecting hole 26 of top steering commutator 18, the inner wall array of connecting hole 26 is provided with a plurality of housing screw 28, push rod A15 and push rod B16 compress tightly through housing screw 28 and are fixed in the connecting hole 26 inner wall, be connected with a push rod B16 through the shaft coupling rotation on the sliding sleeve 7 of bottom, push rod B16 end fixing is in the.
The bottom connecting rod 2, the top connecting rod 3 and the driving shaft connecting frame 1 move relative to the wheel chassis, and the rotating motor 17 and the steering reverser 18 are relatively static; when the wheels on the driving shaft connecting frame 1 float due to vibration, the top connecting rod 3 and the bottom connecting rod 2 are driven to swing, and at the same time, the telescopic sleeve 6 rotationally connected with the bottom connecting rod 2 and the top connecting rod 3 and the linear connecting rod 11 are driven to rotate relative to the steering connecting frame 4 on the frame chassis, and meanwhile, in order to compensate for the upper stages of the bottom connecting rod 2 and the top connecting rod 3, the telescopic sleeve 6 contracts, and the linear connecting rod 11 slides relative to the supporting sliding sleeve 12, so that the distance between the telescopic sleeve 6 and the top steering connecting frame 4 and the bottom steering connecting frame 4 relative to the linear connecting rod 11 is changed, the changed amount is transmitted through the fixed-axis movement of the push rod A15 and the push rod B16, and the steering reverser 18 drives the meshing transmission of the slide rod 21 and the driving gear 20, and the driving gear 20 is under the magnetic resistance of the rotating motor 17, the constant-speed consumption of kinetic energy is carried out, even the reverse rotation of the driving gear 20 drives the push rod A15 and the push rod B16 to move reversely, so that the suspension is quickly returned to be ready for next impact, or the suspension can be actively contracted, the stroke of the suspension is shortened, and the stability is improved; meanwhile, the structure can conveniently adjust the deflection angle of the suspension by adjusting the relative distance between the adjusting sleeve 8 and the push rod A15.
Meanwhile, the length of the telescopic sleeve 6 can be conveniently adjusted by means of the damping structure of the telescopic sleeve 10 part so as to adjust the stroke length of the suspension; when the telescopic sleeve 10 moves relative to the telescopic rod 5, the telescopic sleeve 10 and the telescopic rod 5 are compressed mutually, at the moment, the damping liquid between the end of the damping inner rod 40 and the bottom of the telescopic rod 5 breaks through the valve sheet C42, flows into the damping inner rod 40 from the damping liquid flow hole D50, and then flows into the liquid level sleeve 37 through the damping liquid flow hole B46 on the oil inlet sleeve 39 and further deceleration of the valve sheet A47, the liquid level of the damping liquid participating in flowing inside the liquid level sleeve 37 and inside the sealing sleeve 31 is determined by the separating ring 34 and the pressing plate 33 on the inner wall and the outer wall of the liquid level sleeve 37, and the amount of the compressible top air, when the linear stepping motor 32 works, the separating ring 34 and the pressing plate 33 move downwards or upwards, and when the separating ring 34 and the pressing plate 33 move downwards, the local air and the damping liquid are discharged into the space at the tops of the separating ring 34 and the pressing plate 33 through the liquid level difference generated by the connecting, until the connecting spring 36 is fully expanded, the space between the separating ring 34 and the pressure plate 33 is closed, and the amount of damping fluid which participates in the flowing process, namely flows in the damping fluid flowing hole A38 and the amount of compressible air at the top part are reduced, so that the amount of the damping fluid which can flow back to the bottom of the telescopic rod 5 through the damping fluid flowing hole C44 and the damping fluid flowing hole F51 is reduced, the movable length between the telescopic rod 5 and the telescopic sleeve 10 is shortened, and the movable length of the suspension is adjusted.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.