CN111536183A

CN111536183A - Damping method of automobile energy storage damper

Info

Publication number: CN111536183A
Application number: CN202010392174.2A
Authority: CN
Inventors: 刘金龙
Original assignee: Dongguan Songyan Zhida Industrial Design Co Ltd
Current assignee: Dongguan Songyan Zhida Industrial Design Co Ltd
Priority date: 2017-11-06
Filing date: 2017-11-06
Publication date: 2020-08-14
Also published as: CN107906156A; CN107906156B

Abstract

The invention discloses a damping method of an automobile energy storage damper, which is characterized by comprising the following steps: the device comprises a vehicle body support plate, a damping spring, a piston rod, a first inlet and a second inlet, a cylinder cover plate, a cylinder, a second inlet and a second outlet, a chassis support plate, a pneumatic motor, a first motor air port, a second motor air port, a motor fixing plate, a trigger gear, an upper spring, a rack, a piston top plate, a lower piston plate, a lower spring, a notch thread, a telescopic shaft, a cylinder lower inlet, a trigger gear cavity, a fluted disc, a piston bottom plate, a telescopic bevel gear, a thread notch, a trigger gear support, an installation block, a trigger gear rotating shaft, an installation block spring, a guide rail, a rack notch, a piston support ring, a transmission gear, a notch slide block, a support ring rack wall and a telescopic shaft port, wherein the cylinder is installed on the.

Description

Damping method of automobile energy storage damper

Technical Field

The invention belongs to the technical field of shock absorption, and particularly relates to a shock absorption method of an automobile energy storage shock absorber.

Background

The traditional shock absorption technology at present finishes the absorption and shock absorption of impact force through a shock absorber, and utilizes the shock absorber to accelerate the attenuation of shock energy, different impact forces generated under different working conditions only absorb the impact energy through a single shock absorption mode, and the shock absorption technology has single function and cannot effectively convert and utilize the impact energy; in addition, under the working condition of extreme large instantaneous impact force, the traditional damping technology cannot effectively identify the extreme working condition, so that certain mechanical damage is easily caused to the structure inside the damper under the condition of the instantaneous large impact force, and the service life of the damper is shortened.

The invention designs a damping method of an automobile energy storage damper to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a damping method of an automobile energy storage damper, which is realized by adopting the following technical scheme.

A damping method of an automobile energy storage damper is characterized by comprising the following steps: the device comprises a vehicle body support plate, a damping spring, a piston rod, a first inlet and a second outlet, a cylinder cover plate, a cylinder, a second inlet and a second outlet, a chassis support plate, a pneumatic motor, a first motor air port, a second motor air port, a motor fixing plate, a trigger gear, an upper spring, a rack, a piston top plate, a lower piston plate, a lower spring, a notch thread, a telescopic shaft, a cylinder lower inlet, a trigger gear cavity, a fluted disc, a piston bottom plate, a telescopic bevel gear, a thread notch, a trigger gear support, an installation block, a trigger gear rotating shaft, an installation block spring, a guide rail, a rack notch, a piston support ring, a transmission gear, a notch slide block, a support ring rack wall and a telescopic shaft port, wherein the cylinder is installed on the; one end of the cylinder, which is not connected with the chassis support plate, is provided with a cylinder cover plate; the piston rod is arranged in a center hole of the cylinder cover plate, one end of the piston rod inserted into the cylinder is provided with a lower piston plate, and the other end of the piston rod is provided with a vehicle body support plate; the damping spring is nested on the outer circular surface of the cylinder, one end of the damping spring is arranged on the vehicle body support plate, and the other end of the damping spring is arranged on the chassis support plate; the outer circular surface of the piston rod close to the lower piston plate is provided with a notch thread, and the notch thread is symmetrically provided with two thread notches along the axis of the piston rod; two notch sliding blocks are symmetrically arranged on an inner hole of the piston top plate, and the piston top plate is nested on the outer circular surface of the piston rod through the matching of the notch sliding blocks and the thread notches; a rack notch is cut on the outer circular surface of the piston top plate; two notch sliding blocks are symmetrically arranged on the inner hole of the piston bottom plate, and the piston bottom plate is nested on the outer circular surface of the piston rod through the matching of the notch sliding blocks and the thread notches; a rack notch is cut on the outer circular surface of the piston bottom plate, and a telescopic shaft opening is cut on the plate surface of the piston bottom plate; the piston bottom plate is positioned between the piston top plate and the lower piston plate; a supporting ring rack wall is arranged on the outer circular surface of the piston supporting ring, one side of the piston supporting ring is arranged on the piston bottom plate, and the other side of the piston supporting ring is arranged on the piston top plate; a fluted disc inner hole is provided with a thread, the fluted disc inner hole is arranged on the outer circular surface of the piston rod through the matching with the notch thread, and the fluted disc is positioned between the piston top plate and the piston bottom plate; the telescopic shaft is arranged in the telescopic shaft opening, one end of the telescopic shaft is provided with a transmission gear, and the other end of the telescopic shaft is provided with a telescopic bevel gear; the transmission gear is positioned between the piston top plate and the piston bottom plate and is meshed with the fluted disc; the telescopic bevel gear is positioned between the piston bottom plate and the lower piston plate; the upper plate surface of the lower piston plate is cut with a trigger gear cavity, and the outer circular surface of the lower piston plate is cut with a rack notch; the guide rail is arranged in the trigger gear cavity; the mounting block is mounted in the guide rail; the mounting block spring is mounted in the guide rail; one end of the mounting block spring is mounted on the side surface in the guide rail, and the other end of the mounting block spring is connected with the mounting block; the trigger gear is supported and installed on the installation block; one end of the trigger gear rotating shaft is arranged in a central hole of the trigger gear support, and the other end of the trigger gear rotating shaft is provided with a trigger gear; the rack is arranged on the inner wall of the cylinder; the rack penetrates through a rack notch on the piston bottom plate, a rack notch on the piston top plate and a rack notch on the lower piston plate; the total thickness of the piston top plate, the piston bottom plate and the piston support ring is larger than the distance between two adjacent teeth on the rack; the thickness of the lower piston plate is larger than the distance between two adjacent teeth on the rack; the telescopic bevel gear is meshed with the trigger gear, and the trigger gear is meshed with the teeth on the rack; one end of the upper spring is arranged on the cylinder cover plate, and the other end of the upper spring is arranged on the piston top plate; one end of the lower spring is arranged on the lower piston plate, and the other end of the lower spring is arranged on the lower cylinder surface of the cylinder; a first inlet and a first outlet are arranged on the surface of the cylinder cover plate; a second inlet and a second outlet are arranged on the outer circular surface of the cylinder close to the chassis supporting plate; the motor fixing plate is arranged on the excircle of the bottom plate support plate, and the pneumatic motor is arranged on the motor fixing plate; a first motor air port and a second motor air port are arranged on the outer circular surface of the pneumatic motor; the first inlet and outlet are connected with the air port of the first motor through an air duct; the second inlet and outlet are connected with the air port of the second motor through an air duct.

When the fluted disc moves to the lowest end of the notch thread, a gap is formed between the piston bottom plate and the lower piston plate.

As a further improvement of the present technique, it further comprises a generator; wherein one end of the rotating shaft of the pneumatic motor is connected with the generator.

As a further improvement of the present technique, it also includes a generator support; wherein three generator supports are evenly installed to the circumference direction of the lower quick-witted face of generator, and three generator supports the lower extreme and all installs on pneumatic motor's last machine face.

As a further improvement of the technology, the cylinder is filled with high-pressure air.

As a further improvement of the technology, the cylinder is filled with high-pressure helium.

As a further improvement of the technology, the length of the rack is smaller than the length of the cylinder surface in the cylinder.

After the air cylinder in the traditional damping energy storage mechanism is compressed, the change rate of the space volume on two sides of the piston in the air cylinder is different because of the existence of the piston rod, the traditional solution is to increase the compensation space, and the use of the method can cause the complexity of the mechanism to be improved. In order to solve the problems by using a simple mechanism, the piston provided by the invention can adjust the thickness of the piston per se according to the movement of the piston rod so as to adapt to the space change of two sides of the piston.

The air cylinder is fixed by a chassis support plate, and the pneumatic motor is fixed by a motor fixing plate; the generator is supported and fixed on the pneumatic motor through the generator. A piston mechanism consisting of a vehicle body support plate, a piston rod, a lower piston plate, a piston top plate, a fluted disc and a piston bottom plate can move up and down in a cylinder body of the cylinder. The rack penetrates through the rack notch and is fixed on the inner cylinder of the cylinder; the trigger gear is connected with the lower piston plate through the trigger gear supporting and mounting block; the telescopic bevel gear is connected with the piston bottom plate through a telescopic shaft and a transmission gear. When the shock absorber is subjected to impact force, the piston mechanism moves downwards in the cylinder body of the cylinder; the high-pressure gas at the lower part in the cylinder is instantly pressurized by the compression space of the piston mechanism, and the high-pressure gas at the upper part in the cylinder is instantly depressurized by the space increased by the piston mechanism; the pressurized high-pressure gas enters the pneumatic motor through the second inlet and the second inlet, and drives the pneumatic motor to work, so that the generator is driven to work; high-pressure gas which drives the pneumatic motor to work enters the cylinder through the first motor air port and the first inlet and outlet; in the process that the piston mechanism moves upwards in the cylinder body of the cylinder in a resetting way, high-pressure gas passes through the pneumatic motor and then enters the lower part of the cylinder under the elastic forces of the upper spring, the lower spring and the damping spring; and in conclusion, the piston mechanism is sequentially and repeatedly moved up and down until the energy of the impact force is completely absorbed.

Under the driving of the up-and-down movement of the piston mechanism, the trigger gear and the rack generate relative movement, and the trigger gear starts to rotate under the meshing with the rack; the rotary kinetic energy of the trigger gear is transmitted to the fluted disc through the telescopic bevel gear and the transmission gear, and the fluted disc can move up and down under the matching of the fluted disc and the threads on the piston rod, so that the space between the piston bottom plate and the lower piston plate is changed along with the driving of the movement of the fluted disc. The space change of the piston bottom plate and the lower piston plate compensates the change of the whole space volume in the cylinder caused by the up-and-down movement of the piston rod, so that the gas with a certain volume discharged from the cylinder at one side of the piston mechanism can smoothly enter the newly increased space with the same volume at the other side of the piston mechanism.

The design that rack length is less than the length of cylinder face in the cylinder is in order to guarantee that lower piston plate does not touch lower cylinder face in the cylinder when lower spring is compressed to the limit, prevents mechanical damage. The upper spring and the lower spring are designed so that the piston mechanism does not rigidly collide with the lower cylinder surface in the cylinder or the cylinder cover plate under the limit condition of up-down movement of the piston mechanism, and simultaneously, the piston mechanism can play a role in buffering impact force. The design of screw thread breach and breach slider is in order to guarantee that piston bottom plate and piston roof can not rotate along with the fluted disc, can also play the effect of the high-pressure helium between sealed piston bottom plate and the lower piston plate simultaneously.

When the shock absorber is subjected to very large impact force instantly, the piston mechanism can generate very large moving displacement; at the moment, the rack and the trigger gear can receive very large interaction force in a short time, the fluted disc cannot rotate rapidly in the short time, and the fluted disc with lagging rotating speed generates resistance to the trigger gear through the telescopic bevel gear. Under the acting force of the rack and the acting force of the telescopic bevel gear, the trigger gear compresses the mounting block spring to be separated from being meshed with the rack, and the effect of protecting the rack and the teeth on the trigger gear from being damaged due to overlarge impact force is achieved. After triggering gear and rack and breaking away from simultaneously, the space of piston bottom plate and piston roof will no longer change for the space change of piston mechanism both sides appears the difference, and gas in the cylinder can't normally flow to the opposite side of piston mechanism from one side of piston mechanism through air duct, pneumatic motor, and gas pressure, damping spring's elasticity, the elasticity of going up spring and lower spring must be overcome in piston mechanism's motion, and the impact force is absorbed simultaneously, thereby the mechanical damage phenomenon can not appear because of the effect of very big impact force in the twinkling of an eye in the protection cylinder internal mechanism.

Compared with the traditional damping technology, the invention can convert the impact energy into energy through the pneumatic motor and the generator to realize the purposes of quickly absorbing the impact energy and quickly damping the vibration when in normal work; meanwhile, the invention also solves the problem that the shock absorber generates mechanical damage to the internal structure of the shock absorber when the shock absorber is subjected to instantaneous overlarge impact force, plays a role in protecting the shock absorber in an emergency and prolongs the service life of the shock absorber. The energy-saving device has the advantages of simple and compact structure, high energy-saving performance and better actual use effect.

Drawings

Fig. 1 is an overall schematic view of a shock absorber.

Fig. 2 is an overall perspective schematic view of the shock absorber.

Fig. 3 is an overall sectional view of the shock absorber.

Fig. 4 is an overall sectional front view schematically showing the shock absorber.

Fig. 5 is a schematic sectional view of the damper mechanism.

Fig. 6 is a schematic sectional view of the cylinder.

Fig. 7 is a schematic view of the installation of the piston mechanism.

Fig. 8 is a schematic view of the distribution of the notched threads.

Fig. 9 is a schematic structural view of the trigger gear and the guide rail.

Fig. 10 is a schematic structural view of the mounting block and the trigger gear support.

Fig. 11 is a schematic view of the engagement of the trigger gear cavity with the rack notch.

Fig. 12 is a schematic view of the engagement of the trigger gear with the telescopic bevel gear.

FIG. 13 is a schematic view of the engagement of the transfer gears with the toothed disc.

Fig. 14 is a schematic view of the structure of the piston top plate.

Fig. 15 is a schematic view of the structure of the piston support ring.

Fig. 16 is a schematic view of the structure of the piston bottom plate.

FIG. 17 is a schematic view of a drive sprocket.

Fig. 18 is a schematic view of the trigger gear disengaging the rack.

Number designation in the figures: 1. a vehicle body support plate; 2. a damping spring; 3. a piston rod; 4. a first inlet/outlet; 5. a cylinder cover plate; 6. a cylinder; 7. a second inlet/outlet; 8. a chassis support plate; 9. a generator; 10. a pneumatic motor shaft; 11. a generator support; 12. a pneumatic motor; 13. a first motor air port; 14. a second motor air port; 15. a motor fixing plate; 17. triggering a gear; 18. an upper spring; 19. a rack; 20. a piston top plate; 21. a lower piston plate; 22. a lower spring; 23. notch threads; 24. a telescopic shaft; 25. a lower inlet of the cylinder; 26. a fluted disc; 27. a piston bottom plate; 28. a telescopic bevel gear; 29. a thread gap; 30. triggering a gear support; 31. mounting blocks; 32. a trigger gear shaft; 33. installing a block spring; 34. a guide rail; 35. a rack notch; 36. a piston support ring; 37. a transfer gear; 38. a notched slider; 39. a support ring rack wall; 40. a telescopic shaft opening; 41. the gear chamber is triggered.

Detailed Description

As shown in fig. 1 and 2, the pneumatic shock absorber comprises a vehicle body support plate 1, a shock absorbing spring 2, a piston rod 3, a first inlet/outlet 4, a cylinder cover plate 5, a cylinder 6, a second inlet/outlet 7, a chassis support plate 8, a pneumatic motor 12, a first motor air port 13, a second motor air port 14, a motor fixing plate 15, a trigger gear 17, an upper spring 18, a rack 19, a piston top plate 20, a lower piston plate 21, a lower spring 22, a notch thread 23, a telescopic shaft 24, a cylinder lower inlet 25, a trigger gear cavity 41, a fluted disc 26, a piston bottom plate 27, a telescopic bevel gear 28, a thread notch 29, a trigger gear support 30, a mounting block 31, a trigger gear rotating shaft 32, a mounting block spring 33, a guide rail 34, a rack notch 35, a piston support ring 36, a transfer gear 37, a notch slide block 38, a support ring rack wall 39 and a telescopic shaft port 40, wherein the cylinder 6 is; one end of the cylinder 6, which is not connected with the chassis support plate 8, is provided with a cylinder cover plate 5; as shown in fig. 3, the piston rod 3 is installed in the central hole of the cylinder cover plate 5, one end of the piston rod 3 inserted into the cylinder 6 is installed with the lower piston plate 21, and the other end is installed with the vehicle body support plate 1; as shown in fig. 4, the damping spring 2 is nested on the outer circular surface of the cylinder 6, one end of the damping spring 2 is installed on the vehicle body support plate 1, and the other end is installed on the chassis support plate 8; as shown in fig. 8, the outer circular surface of the piston rod 3 near the lower piston plate 21 has a notch thread 23, and the notch thread 23 is symmetrically provided with two thread notches 29 along the axis of the piston rod 3; as shown in fig. 14, two notch sliders 38 are symmetrically installed on the inner hole of the piston top plate 20, and the piston top plate 20 is nested on the outer circumferential surface of the piston rod 3 through the matching of the notch sliders 38 and the threaded notch 29; a rack notch 35 is cut on the outer circular surface of the piston top plate 20; as shown in fig. 16, two notched sliders 38 are symmetrically installed on the inner hole of the piston bottom plate 27, and the piston bottom plate 27 is nested on the outer circumferential surface of the piston rod 3 through the matching of the notched sliders 38 and the threaded notches 29; a rack notch 35 is cut on the outer circular surface of the piston bottom plate 27, and a telescopic shaft opening 40 is cut on the plate surface of the piston bottom plate 27; as shown in fig. 12, the piston bottom plate 27 is located between the piston top plate 20 and the lower piston plate 21; as shown in fig. 15, a supporting ring rack wall 39 is installed on the outer circular surface of the piston supporting ring 36, one side of the piston supporting ring 36 is installed on the piston bottom plate 27, and the other side is installed on the piston top plate 20; as shown in fig. 13, a thread is opened in an inner hole of the fluted disc 26, the inner hole of the fluted disc 26 is installed on the outer circumferential surface of the piston rod 3 by matching with the notched thread 23, and as shown in fig. 5, the fluted disc 26 is located between the piston top plate 20 and the piston bottom plate 27; as shown in fig. 13, the telescopic shaft 24 is installed in the telescopic shaft opening 40, one end of the telescopic shaft 24 is provided with the transmission gear 37, and the other end is provided with the telescopic bevel gear 28; the transmission gear 37 is positioned between the piston top plate 20 and the piston bottom plate 27, and the transmission gear 37 is meshed with the fluted disc 26; as shown in fig. 12, the telescopic bevel gear 28 is located between the piston bottom plate 27 and the lower piston plate 21; as shown in fig. 11, a trigger gear cavity 41 is cut on the upper plate surface of the lower piston plate 21, and a rack notch 35 is cut on the outer circular surface of the lower piston plate 21; as shown in fig. 8, the guide rail 34 is installed in the trigger gear chamber 41; as shown in fig. 9 and 10, the mounting block 31 is mounted in the guide rail 34; the mounting block spring 33 is mounted in the guide rail 34; one end of the mounting block spring 33 is mounted on the side surface in the guide rail 34, and the other end is connected with the mounting block 31; the trigger gear support 30 is mounted on the mounting block 31; one end of the trigger gear rotating shaft 32 is installed in the central hole of the trigger gear support 30, and the other end is installed with the trigger gear 17; as shown in fig. 6, the rack 19 is mounted on the inner wall of the cylinder 6; as shown in fig. 7, the rack 19 passes through the rack notch 35 on the piston bottom plate 27, the rack notch 35 on the piston top plate 20, and the rack notch 35 on the lower piston plate 21; as shown in fig. 7, the total thickness of the piston top plate 20, the piston bottom plate 27 and the piston support ring 36 is larger than the distance between two adjacent teeth on the rack 19; the thickness of the lower piston plate 21 is larger than the distance between two adjacent teeth on the rack 19; as shown in fig. 17, the telescopic bevel gear 28 is meshed with the trigger gear 17, and the trigger gear 17 is meshed with the teeth on the rack 19; as shown in fig. 3, one end of the upper spring 18 is mounted on the cylinder head plate 5, and the other end is mounted on the piston top plate 20; one end of a lower spring 22 is arranged on the lower piston plate 21, and the other end is arranged on the lower cylinder surface of the cylinder 6; as shown in fig. 1, a first inlet/outlet 4 is installed on the surface of the cylinder cover plate 5; as shown in fig. 6, a second inlet/outlet 7 is installed on the outer circular surface of the cylinder 6 close to the chassis support plate 8; as shown in fig. 1, a motor fixing plate 15 is installed on the outer circle of the base plate support plate, and the air motor 12 is installed on the motor fixing plate 15; a first motor air port 13 and a second motor air port 14 are installed on the outer circular surface of the pneumatic motor 12; the first inlet and outlet 4 is connected with a first motor air port 13 through an air duct; the second inlet/outlet 7 is connected to a second motor port 14 via an air duct.

When the toothed disc 26 moves to the lowermost end of the notched thread 23, there is a gap between the piston bottom plate 27 and the lower piston plate 21.

As shown in fig. 1 and 6, it comprises a generator 9; wherein one end of a rotating shaft 10 of the pneumatic motor is connected with the generator 9.

As shown in fig. 1 and 2, it comprises a generator support 11; wherein, three generator supports 11 are uniformly arranged in the circumferential direction of the lower machine surface of the generator 9, and the lower ends of the three generator supports 11 are arranged on the upper machine surface of the pneumatic motor 12.

As shown in fig. 3, the cylinder 6 is filled with high-pressure air.

As shown in fig. 3, the cylinder 6 is filled with helium gas under high pressure.

As shown in fig. 6, the length of the rack 19 is smaller than the length of the inner surface of the cylinder 6.

The specific implementation mode is as follows: after the air cylinder 6 in the traditional damping energy storage mechanism is compressed, the change rate of the space volume at two sides of the piston in the air cylinder 6 is different because of the existence of the piston rod 3, the traditional solution is to increase the compensation space, and the use of the method can cause the mechanism complexity to be improved. In order to solve the above problems with a simple mechanism, the piston of the present invention is designed to be able to adjust the thickness of the piston itself to accommodate spatial variations on both sides of the piston according to the movement of the piston rod 3.

As shown in fig. 1, the air cylinder 6 of the present invention is fixed by a chassis support plate 8, and the air motor 12 is fixed by a motor fixing plate 15; the generator 9 is fixed to the air motor 12 by a generator support 11. As shown in fig. 5, the piston mechanism, which is composed of the body brace 1, the piston rod 3, the lower piston plate 21, the piston top plate 20, the toothed plate 26, and the piston bottom plate 27, is movable up and down within the cylinder body of the cylinder 6. As shown in fig. 6 and 7, the rack 19 is fixed on the inner cylinder of the cylinder 6 through the rack notch 35; as shown in fig. 8, the trigger gear 17 is connected to the lower piston plate 21 through the trigger gear support 30 and the mounting block 31; as shown in fig. 13, the telescopic bevel gear 28 is connected to the piston bottom plate 27 via the telescopic shaft 24 and the transmission gear 37. When the shock absorber is subjected to impact force, the piston mechanism moves downwards in the cylinder body of the cylinder 6; the high-pressure gas at the lower part in the cylinder 6 is instantaneously pressurized by the compression space of the piston mechanism, and the high-pressure gas at the upper part in the cylinder 6 is instantaneously depressurized by the space increased by the piston mechanism; the pressurized high-pressure gas enters the pneumatic motor 12 through the second inlet/outlet 7 and the second motor air port 14, and the pressurized high-pressure gas drives the pneumatic motor 12 to work, so that the generator 9 is driven to work; the high-pressure gas driving the pneumatic motor 12 to work enters the cylinder 6 through the first motor air port 13 and the first inlet/outlet 4; in the process that the piston mechanism moves upwards in the cylinder body of the cylinder 6 in a resetting way, high-pressure gas passes through the pneumatic motor 12 from the upper part in the cylinder 6 and then enters the lower part in the cylinder 6 under the elastic forces of the upper spring 18, the lower spring 22 and the damping spring 2; and in conclusion, the piston mechanism is sequentially and repeatedly moved up and down until the energy of the impact force is completely absorbed.

As shown in fig. 5 and 7, the trigger gear 17 and the rack 19 generate relative motion under the driving of the up-and-down movement of the piston mechanism, and the trigger gear 17 starts to rotate under the meshing with the rack 19; the rotational kinetic energy of the trigger gear 17 is transmitted to the fluted disc 26 through the retractable bevel gear 28 and the transmission gear 37, so that the fluted disc 26 can move up and down under the matching of the fluted disc 26 and the threads on the piston rod 3, and the space between the piston bottom plate 27 and the lower piston plate 21 is changed along with the movement of the fluted disc 26. The space change of the piston bottom plate 27 and the lower piston plate 21 compensates the change of the whole space volume in the cylinder 6 caused by the up-and-down movement of the piston rod 3, so that the gas with a certain volume discharged from the cylinder 6 at one side of the piston mechanism can smoothly enter the newly increased space with the same volume at the other side of the piston mechanism.

The length of the rack 19 is smaller than the length of the cylinder surface in the cylinder 6, so as to ensure that the lower piston plate 21 does not touch the lower cylinder surface in the cylinder 6 when the lower spring 22 is compressed to the limit, and prevent mechanical damage. The upper spring 18 and the lower spring 22 are designed so that the piston mechanism does not rigidly collide with the lower cylinder surface or the cylinder cover plate 5 in the cylinder 6 in the limit of the up-and-down movement of the piston mechanism, and also has the function of buffering the impact force. The thread gap 29 and the gap slider 38 are designed to ensure that the piston bottom plate 27 and the piston top plate 20 do not rotate with the toothed disc 26, and also to seal the high-pressure helium gas between the piston bottom plate 27 and the lower piston plate 21.

As shown in fig. 18, when the shock absorber is subjected to a very large impact force instantaneously, the piston mechanism generates a very large displacement; at this time, the rack 19 and the trigger gear 17 receive a very large interaction force in a short time, and the toothed plate 26 cannot rotate rapidly in a short time, so that the toothed plate 26 with a delayed rotation speed generates resistance to the trigger gear 17 by the telescopic bevel teeth 28. Under the action of the rack 19 and the action of the telescopic bevel gear 28, the trigger gear 17 compresses the mounting block spring 33 to be disengaged from the rack 19, and the effect of protecting the teeth on the rack 19 and the trigger gear 17 from being damaged due to excessive impact force is achieved. After the triggering gear 17 is separated from the rack 19, the space of the piston bottom plate 27 and the space of the piston top plate 20 are not changed, so that the space change of the two sides of the piston mechanism is different, the gas in the cylinder 6 cannot normally flow to the other side of the piston mechanism from one side of the piston mechanism through the gas guide pipe and the pneumatic motor 12, the movement of the piston mechanism must overcome the gas pressure, the elastic force of the damping spring 2 and the elastic forces of the upper spring 18 and the lower spring 22, and meanwhile, the impact force is absorbed, so that the internal mechanism of the cylinder 6 is protected from mechanical damage due to the action of instant very large impact force.

In summary, compared with the traditional damping technology, the energy storage device can convert the impact energy into energy through the pneumatic motor 12 and the generator 9 during normal work, and achieves the purposes of quickly absorbing the impact energy and quickly attenuating the vibration; meanwhile, the invention also solves the problem that the shock absorber generates mechanical damage to the internal structure of the shock absorber when the shock absorber is subjected to instantaneous overlarge impact force, plays a role in protecting the shock absorber in an emergency and prolongs the service life of the shock absorber. The energy-saving device has the advantages of simple and compact structure, high energy-saving performance and better actual use effect.

Claims

1. A damping method of an automobile energy storage damper is characterized by comprising the following steps: the device comprises a vehicle body support plate, a damping spring, a piston rod, a first inlet and a second outlet, a cylinder cover plate, a cylinder, a second inlet and a second outlet, a chassis support plate, a pneumatic motor, a first motor air port, a second motor air port, a motor fixing plate, a trigger gear, an upper spring, a rack, a piston top plate, a lower piston plate, a lower spring, a notch thread, a telescopic shaft, a cylinder lower inlet, a trigger gear cavity, a fluted disc, a piston bottom plate, a telescopic bevel gear, a thread notch, a trigger gear support, an installation block, a trigger gear rotating shaft, an installation block spring, a guide rail, a rack notch, a piston support ring, a transmission gear, a notch slide block, a support ring rack wall and a telescopic shaft port, wherein the cylinder is installed on the; one end of the cylinder, which is not connected with the chassis support plate, is provided with a cylinder cover plate; the piston rod is arranged in a center hole of the cylinder cover plate, one end of the piston rod inserted into the cylinder is provided with a lower piston plate, and the other end of the piston rod is provided with a vehicle body support plate; the damping spring is nested on the outer circular surface of the cylinder, one end of the damping spring is arranged on the vehicle body support plate, and the other end of the damping spring is arranged on the chassis support plate; the outer circular surface of the piston rod close to the lower piston plate is provided with a notch thread, and the notch thread is symmetrically provided with two thread notches along the axis of the piston rod; two notch sliding blocks are symmetrically arranged on an inner hole of the piston top plate, and the piston top plate is nested on the outer circular surface of the piston rod through the matching of the notch sliding blocks and the thread notches; a rack notch is cut on the outer circular surface of the piston top plate; two notch sliding blocks are symmetrically arranged on the inner hole of the piston bottom plate, and the piston bottom plate is nested on the outer circular surface of the piston rod through the matching of the notch sliding blocks and the thread notches; a rack notch is cut on the outer circular surface of the piston bottom plate, and a telescopic shaft opening is cut on the plate surface of the piston bottom plate; the piston bottom plate is positioned between the piston top plate and the lower piston plate; a supporting ring rack wall is arranged on the outer circular surface of the piston supporting ring, one side of the piston supporting ring is arranged on the piston bottom plate, and the other side of the piston supporting ring is arranged on the piston top plate; a fluted disc inner hole is provided with a thread, the fluted disc inner hole is arranged on the outer circular surface of the piston rod through the matching with the notch thread, and the fluted disc is positioned between the piston top plate and the piston bottom plate; the telescopic shaft is arranged in the telescopic shaft opening, one end of the telescopic shaft is provided with a transmission gear, and the other end of the telescopic shaft is provided with a telescopic bevel gear; the transmission gear is positioned between the piston top plate and the piston bottom plate and is meshed with the fluted disc; the telescopic bevel gear is positioned between the piston bottom plate and the lower piston plate; the upper plate surface of the lower piston plate is cut with a trigger gear cavity, and the outer circular surface of the lower piston plate is cut with a rack notch; the guide rail is arranged in the trigger gear cavity; the mounting block is mounted in the guide rail; the mounting block spring is mounted in the guide rail; one end of the mounting block spring is mounted on the side surface in the guide rail, and the other end of the mounting block spring is connected with the mounting block; the trigger gear is supported and installed on the installation block; one end of the trigger gear rotating shaft is arranged in a central hole of the trigger gear support, and the other end of the trigger gear rotating shaft is provided with a trigger gear; the rack is arranged on the inner wall of the cylinder; the rack penetrates through a rack notch on the piston bottom plate, a rack notch on the piston top plate and a rack notch on the lower piston plate; the total thickness of the piston top plate, the piston bottom plate and the piston support ring is larger than the distance between two adjacent teeth on the rack; the thickness of the lower piston plate is larger than the distance between two adjacent teeth on the rack; the telescopic bevel gear is meshed with the trigger gear, and the trigger gear is meshed with the teeth on the rack; one end of the upper spring is arranged on the cylinder cover plate, and the other end of the upper spring is arranged on the piston top plate; one end of the lower spring is arranged on the lower piston plate, and the other end of the lower spring is arranged on the lower cylinder surface of the cylinder; a first inlet and a first outlet are arranged on the surface of the cylinder cover plate; a second inlet and a second outlet are arranged on the outer circular surface of the cylinder close to the chassis supporting plate; the motor fixing plate is arranged on the excircle of the bottom plate support plate, and the pneumatic motor is arranged on the motor fixing plate; a first motor air port and a second motor air port are arranged on the outer circular surface of the pneumatic motor; the first inlet and outlet are connected with the air port of the first motor through an air duct; the second inlet and outlet are connected with the air port of the second motor through an air duct;

when the fluted disc moves to the lowest end of the notch thread, a gap is formed between the piston bottom plate and the lower piston plate;

when the shock absorber is subjected to impact force, the piston mechanism moves downwards in the cylinder body of the cylinder 6; the high-pressure gas at the lower part in the cylinder 6 is instantaneously pressurized by the compression space of the piston mechanism, and the high-pressure gas at the upper part in the cylinder 6 is instantaneously depressurized by the space increased by the piston mechanism; the pressurized high-pressure gas enters the pneumatic motor 12 through the second inlet/outlet 7 and the second motor air port 14, and the pressurized high-pressure gas drives the pneumatic motor 12 to work, so that the generator 9 is driven to work; the high-pressure gas driving the pneumatic motor 12 to work enters the cylinder 6 through the first motor air port 13 and the first inlet/outlet 4; in the process that the piston mechanism moves upwards in the cylinder body of the cylinder 6 in a resetting way, high-pressure gas passes through the pneumatic motor 12 from the upper part in the cylinder 6 and then enters the lower part in the cylinder 6 under the elastic forces of the upper spring 18, the lower spring 22 and the damping spring 2; the piston mechanism is sequentially and repeatedly moved up and down until the energy of the impact force is completely absorbed;

under the driving of the up-and-down movement of the piston mechanism, the trigger gear 17 and the rack 19 generate relative movement, and the trigger gear 17 starts to rotate under the meshing with the rack 19; the rotational kinetic energy of the trigger gear 17 is transmitted to the fluted disc 26 through the retractable bevel gear 28 and the transmission gear 37, so that the fluted disc 26 can move up and down under the matching of the fluted disc 26 and the threads on the piston rod 3, and the space between the piston bottom plate 27 and the lower piston plate 21 is changed along with the movement of the fluted disc 26.

2. The space change of the piston bottom plate 27 and the lower piston plate 21 compensates the change of the whole space volume in the cylinder 6 caused by the up-and-down movement of the piston rod 3, so that the gas with a certain volume discharged from the cylinder 6 at one side of the piston mechanism can smoothly enter the newly increased space with the same volume at the other side of the piston mechanism;

when the shock absorber is subjected to very large impact force instantly, the piston mechanism can generate very large movement displacement; at this time, the rack 19 and the trigger gear 17 receive a very large interaction force in a short time, and the toothed plate 26 cannot rotate rapidly in a short time, so that the toothed plate 26 with a delayed rotation speed generates resistance to the trigger gear 17 by the telescopic bevel teeth 28.

3. Under the action of the rack 19 and the action of the telescopic bevel gear 28, the trigger gear 17 compresses the mounting block spring 33 to be disengaged from the rack 19, and the effect of protecting the teeth on the rack 19 and the trigger gear 17 from being damaged due to excessive impact force is achieved.

4. After the triggering gear 17 is separated from the rack 19, the space of the piston bottom plate 27 and the space of the piston top plate 20 are not changed, so that the space change of the two sides of the piston mechanism is different, the gas in the cylinder 6 cannot normally flow to the other side of the piston mechanism from one side of the piston mechanism through the gas guide pipe and the pneumatic motor 12, the movement of the piston mechanism must overcome the gas pressure, the elastic force of the damping spring 2 and the elastic forces of the upper spring 18 and the lower spring 22, and meanwhile, the impact force is absorbed, so that the internal mechanism of the cylinder 6 is protected from mechanical damage due to the action of instant very large impact force.

5. The shock absorbing method of an automobile energy storage shock absorber according to claim 1, characterized in that: it also includes a generator; wherein one end of the rotating shaft of the pneumatic motor is connected with the generator.

6. The shock absorbing method of an automobile energy storage shock absorber according to claim 2, characterized in that: it also includes a generator support; wherein three generator supports are evenly installed to the circumference direction of the lower quick-witted face of generator, and three generator supports the lower extreme and all installs on pneumatic motor's last machine face.

7. The shock absorbing method of an automobile energy storage shock absorber according to claim 1, characterized in that: the cylinder is filled with high-pressure air.

8. The shock absorbing method of an automobile energy storage shock absorber according to claim 1, characterized in that: the cylinder is filled with high-pressure helium.

9. The method for damping vibration of an automobile energy storage vibration damper as claimed in claims 1-5, wherein: the length of the rack is less than that of the cylinder surface in the cylinder.