CN211343837U - Stable hydraulic shock absorber for electric vehicle - Google Patents
Stable hydraulic shock absorber for electric vehicle Download PDFInfo
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- CN211343837U CN211343837U CN201921834825.8U CN201921834825U CN211343837U CN 211343837 U CN211343837 U CN 211343837U CN 201921834825 U CN201921834825 U CN 201921834825U CN 211343837 U CN211343837 U CN 211343837U
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- working cylinder
- shock absorber
- oil
- cylinder
- piston rod
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Abstract
The utility model discloses a stable hydraulic shock absorber for electric vehicles, which comprises a working cylinder, a piston and a piston rod which are arranged in the working cylinder, a guide sleeve which is arranged at the upper end of the working cylinder and is connected with the piston rod, and an oil storage cylinder which is arranged at the outer side of the working cylinder, wherein the oil storage cylinder, the working cylinder, the guide sleeve, the piston and the piston rod are coaxially arranged; the bottom of the working cylinder is provided with a bottom valve seat, the bottom valve seat is provided with a compression valve and a compensation valve, a hydraulic oil through hole communicated with the oil storage cylinder is formed in the lower portion of the side face of the working cylinder and above the bottom valve seat, and a plurality of liquid flow regulating valves are arranged on the side wall of the working cylinder and on the upper side of the hydraulic oil through hole. Thereby increase the intercommunication between an oil storage section of thick bamboo and the working cylinder, the hydraulic pressure oil mass in the quick supply and the release working cylinder keeps its hydraulic pressure stable, and the sensitive vibration power of coping with outside vibrations reaches the effect that increases the bumper shock absorber stability to promote the comfort that the electric motor car used.
Description
Technical Field
The utility model relates to a stable hydraulic damper that electric motor car was used.
Background
Nowadays, electric vehicles become a common transportation tool in people's life. The bumper shock absorber is the very important part of electric motor car, and under the condition that does not have bumper shock absorber or bumper shock absorber damage, the electric motor car traveles and can jolt very much, especially when the road surface of pothole inequality or people carry cargo, jolts more seriously, and this not only lets the user feel uncomfortable, leads to the damage of automobile body and relevant part moreover easily, reduces electric motor car service life.
The existing shock absorber for the electric vehicle comprises a mechanical shock absorber and a hydraulic shock absorber. Among them, the mechanical shock absorber is the most common, and it offsets the impact strength on the shock absorber piston rod by the mechanical buffer action (such as the buffer action of spring) to alleviate the jolt of automobile body, therefore easily produce the noise, and the part of mechanical shock absorber is fixed mounting, and the shock attenuation effect is limited. Hydraulic shock absorbers are further classified into hydraulic shock absorbers and two-way shock absorbers. The hydraulic shock absorber which is mostly adopted on the electric vehicle is a hydraulic shock absorber, and the purpose of reducing or eliminating shock is realized by utilizing the compressibility of liquid and the characteristics of absorbing energy when the liquid is compressed and dissipating energy when the liquid flows.
The structure of the existing hydraulic shock absorber mainly comprises a working cylinder, a piston rod, an oil storage cylinder and other components which are coaxially arranged, wherein a compression valve and a recovery valve which are used for controlling the flow of hydraulic oil in the working cylinder are arranged on the piston, and the piston reciprocates in the working cylinder to enable the flow of the hydraulic oil to generate damping so as to achieve shock absorption. Therefore, hydraulic oil is the main damping component. In a general hydraulic shock absorber, an oil storage cylinder arranged outside a working cylinder is additionally arranged to increase the storage capacity and hydraulic pressure of hydraulic oil, and the oil storage cylinder is communicated with the working cylinder through a bottom valve at the bottom of the working cylinder, so that the hydraulic oil in an external control working cylinder flows into the working cylinder to provide hydraulic pressure enough for eliminating vibration. However, the piston reciprocates in the cylinder to wear the inner wall of the cylinder, and the fine iron powder abraded not only further accelerates the wear of the cylinder and easily blocks the bottom valve, but there is a report that a magnet may be additionally provided to the bottom valve to adsorb the fine powder, for example, a wear-resistant hydraulic damper disclosed in chinese patent document CN2787920Y, and a magnet may be installed to a side surface of a bottom compression valve to adsorb the fine powder, so that the fine iron powder in the oil body is adsorbed to keep the oil body clear, but the adsorption effect is easily weakened after long-term use, and as the iron powder adsorption increases, the weight of the valve body increases, the fluid flow between the oil reservoir and the cylinder is inevitably blocked, and the damping effect is weakened. In addition, only through bottom valve intercommunication oil storage cylinder and working cylinder, adjust when meetting comparatively jolt road surface suddenly and need certain time, not only influence the result of use, harm the bumper shock absorber easily moreover, consequently it is necessary to further improve current bumper shock absorber to further control the hydraulic oil circulation between oil storage cylinder and the working cylinder, and can in time adjust the hydraulic pressure in the working cylinder, reach the effect that increases the bumper shock absorber stability.
SUMMERY OF THE UTILITY MODEL
To the problem that exists above-mentioned and in order to reach foretell target, the utility model provides a hydraulic shock absorber for electric motor car controls hydraulic oil in the working cylinder and flows through setting up a plurality of compression valves and rebound valve on the piston to control shock attenuation hardness, the automobile body shaking force of answering fast, thereby reduce working cylinder length, reduce the frictional force of piston and cylinder body inner wall, satisfy the use of small-size electric motor car, and promote its shock attenuation effect. The specific technical scheme is as follows:
a stable hydraulic shock absorber for an electric vehicle comprises a working cylinder, a piston and a piston rod which are arranged in the working cylinder, a guide sleeve which is arranged at the upper end of the working cylinder and connected with the piston rod, and an oil storage cylinder which is arranged at the outer side of the working cylinder, wherein the oil storage cylinder, the working cylinder, the guide sleeve, the piston and the piston rod are coaxially arranged; the bottom of the working cylinder is provided with a bottom valve seat, the bottom valve seat is provided with a compression valve and a compensation valve, a hydraulic oil through hole communicated with the oil storage cylinder is formed in the lower portion of the side face of the working cylinder and above the bottom valve seat, and a plurality of liquid flow regulating valves are arranged on the side wall of the working cylinder and on the upper side of the hydraulic oil through hole.
According to the stable hydraulic shock absorber for the electric vehicle, the liquid flow regulating valve comprises a regulating valve base fixed on the side wall of the working cylinder, a regulating valve cover plate capable of being opened or closed according to the size of liquid in the working cylinder, and a spring connected with the regulating valve cover plate and the regulating valve base, a plurality of oil leakage holes are formed in the regulating valve base, and the linear diameter of the spring is 0.5-1.5 mm.
Preferably, the fluid flow regulating valve includes a compensation regulating valve for increasing the flow of the hydraulic oil in the reservoir cylinder into the working cylinder and a compression regulating valve for accelerating the flow of the hydraulic oil in the working cylinder into the reservoir cylinder.
Preferably, the number of the compensation regulating valves and the number of the compression regulating valves are three, the compensation regulating valves and the compression regulating valves are distributed at the same height of the side wall of the working cylinder at intervals, and the compensation regulating valves correspond to the compression regulating valves one to one.
According to the stable hydraulic shock absorber for the electric vehicle, the upper end of the guide sleeve is provided with the upper support connected with the frame of the electric vehicle, and the upper support, the guide sleeve and the piston rod connected with the piston are cast into a whole.
Preferably, the piston rod is 20mm in diameter and made of a carburized steel material of 20 CrMnTi.
In the stable hydraulic shock absorber for the electric vehicle, the bottom of the oil storage cylinder is also provided with a bottom cover and a lower support used for being connected with an axle of the electric vehicle.
Preferably, in the above-described stable hydraulic shock absorber for an electric vehicle, a magnet is mounted between the compression valve and the compensation valve on the base valve seat.
Preferably, in the stable hydraulic shock absorber for the electric vehicle, an oil seal assembly is arranged between the piston rod and the upper end of the working cylinder body, and the oil seal assembly comprises an oil seal sleeve fixed on the working cylinder and an oil seal sleeved on the piston rod.
The utility model has the advantages that:
the utility model discloses except through being equipped with compression valve and compensating valve UNICOM oil storage section of thick bamboo and working cylinder on the base valve seat, still be equipped with hydraulic oil through-hole and liquid flow control valve on the working cylinder lateral wall, the hydraulic pressure oil mass in quick supply and the release working cylinder keeps its hydraulic pressure stable, and the vibration power of outside vibrations is dealt with to the sensitivity reaches the effect that increases the shock absorber stability to promote the comfort that the electric motor car used.
Drawings
Fig. 1 is a schematic structural view (drawn) of the stable hydraulic damper for an electric vehicle according to the present invention;
fig. 2 is a schematic structural view (compression) of the stable hydraulic damper for an electric vehicle according to the present invention;
FIG. 3 is a schematic longitudinal section of the present invention;
fig. 4 is the structure schematic diagram of the compensation regulating valve and the compression regulating valve of the present invention.
In the figure: 1. a working cylinder; 2. a piston; 3. a piston rod; 4. a guide sleeve; 5. an oil storage cylinder; 6. a base valve seat; 7. a compression valve; 8. a compensation valve; 9. a liquid flow regulating valve; 901. a regulating valve base; 902. adjusting a valve cover plate; 903. a spring; 904. an oil leak hole; 91. a compensation regulating valve; 92. compressing the regulating valve; 10. a hydraulic oil through hole; 11. an upper support; 12. a lower support; 13. a bottom cover; 14. a magnet; 15. an oil seal cover; 16. and (7) oil sealing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The specific embodiment is as follows:
referring to fig. 1 to 4, a stable hydraulic shock absorber for an electric vehicle includes a working cylinder 1, a piston 2 and a piston rod 3 disposed in the working cylinder 1, a guide sleeve 4 disposed at an upper end of the working cylinder 1 and connected to the piston rod 3, and an oil storage cylinder 5 disposed outside the working cylinder 1, wherein the oil storage cylinder 5, the working cylinder 1, the guide sleeve 4, the piston 2, and the piston rod 3 are coaxially disposed; 1 bottom of working cylinder is equipped with base valve seat 6, be equipped with compression valve 7 and compensating valve 8 on the base valve seat 6, the side lower part of working cylinder 1 base valve seat 6's top be equipped with be used for with the hydraulic oil through-hole 10 of intercommunication between the oil storage section of thick bamboo 5, the upside of hydraulic oil through-hole 10 is equipped with a plurality of liquid flow control valve 9 around 1 lateral wall of working cylinder to increase the intercommunication between oil storage section of thick bamboo 5 and the working cylinder 1, replenish fast and release the hydraulic oil mass in the working cylinder 1, keep its hydraulic pressure stable, the sensitive shaking force of coping outside vibrations reaches the effect that increases the shock absorber stability, and promotes the comfort that the electric motor car used.
In the stable hydraulic shock absorber for the electric vehicle according to the embodiment, the liquid flow regulating valve 9 includes a regulating valve base 901 fixed to the side wall of the working cylinder 1, a regulating valve cover 902 capable of being opened or closed according to the pressure inside the working cylinder 1, and a spring 903 connecting the regulating valve cover 902 and the regulating valve base 901, a plurality of oil leakage holes 904 are formed in the regulating valve base 901, and the regulating valve cover 902 is opened or closed according to the pressure inside the working cylinder 1 through the spring. The wire diameter of the spring 903 can be 0.5-1.5 mm. The liquid flow regulating valve 10 comprises a compensation regulating valve 91 for increasing the flow of the hydraulic oil in the oil storage cylinder 5 into the working cylinder 1 and a compression regulating valve 92 for accelerating the flow of the hydraulic oil in the working cylinder 1 into the oil storage cylinder 5, the compensation regulating valve 91 and the compression regulating valve 92 are distributed at the same height of the side wall of the working cylinder 1 at intervals and are in one-to-one correspondence. In this embodiment, the compensation adjustment valve 91 and the compression adjustment valve 92 are respectively provided with 3 springs, and the wire diameters of the springs are respectively 0.5mm, 1.0mm and 1.5 mm. When the hydraulic pressure in the working cylinder 1 is reduced, the regulating valve cover plate 902 of the compensation regulating valve 91 is supported by the spring 903, the hydraulic oil in the oil storage cylinder is supplemented into the working cylinder 1, when the hydraulic pressure in the working cylinder 1 is changed slightly, the liquid flow regulating valve 9 with the smallest spring wire diameter is opened, the larger the hydraulic pressure change in the working cylinder 1 is, the more the liquid flow regulating valve 9 is opened, and the hydraulic pressure in the working cylinder 1 is supplemented quickly and stably. Likewise, when the hydraulic pressure in the cylinder 1 rises, the compression regulating valve 92 starts to operate, maintaining the hydraulic pressure balance in the cylinder 1.
This implement stable hydraulic shock absorber that electric motor car used, the upper end of uide bushing 4 is equipped with the upper bracket 11 that is used for being connected with electric motor car frame, and upper bracket 11, uide bushing 4 and 3 three of the piston rod of connecting piston 2 cast as an organic whole. The piston rod 3 is preferably made of 20CrMnTi carburizing steel, and the diameter of the piston rod is 20 mm; the bottom of the oil storage cylinder 5 is also provided with a bottom cover 13 and a lower support 12 used for being connected with an axle of an electric vehicle. And a magnet 14 is arranged between the compression valve 7 and the compensation valve 8 on the base valve seat 6 and is used for adsorbing iron powder generated by abrasion without increasing the weight of the compression valve and influencing the use of a valve body. In addition, an oil seal assembly is arranged between the piston rod 3 and the upper end of the working cylinder 1, the oil seal assembly comprises an oil seal sleeve 15 fixed on the working cylinder 1 and an oil seal 16 sleeved on the piston rod 3, and the sealing performance of the working cylinder 1 is guaranteed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A stable hydraulic shock absorber for an electric vehicle comprises a working cylinder (1), a piston (2) and a piston rod (3) which are arranged in the working cylinder (1), a guide sleeve (4) which is arranged at the upper end of the working cylinder (1) and connected with the piston rod (3), and an oil storage cylinder (5) which is arranged at the outer side of the working cylinder (1), wherein the oil storage cylinder (5), the working cylinder (1), the guide sleeve (4), the piston (2) and the piston rod (3) are coaxially arranged; the method is characterized in that: working cylinder (1) bottom is equipped with base valve seat (6), be equipped with compression valve (7) and compensating valve (8) on base valve seat (6), the top of base valve seat (6) is equipped with the hydraulic oil through-hole (10) that are used for and communicate between oil storage cylinder (5) at the bottom of the side lower part of working cylinder (1), the upside of hydraulic oil through-hole (10) is equipped with a plurality of flow control valve (9) around working cylinder (1) lateral wall.
2. The stable hydraulic shock absorber for electric vehicles according to claim 1, wherein: the liquid flow regulating valve (9) comprises a regulating valve base (901) fixed on the side wall of the working cylinder (1), a regulating valve cover plate (902) capable of being opened or closed according to the size of liquid pressure in the working cylinder (1), and a spring (903) connecting the regulating valve cover plate (902) and the regulating valve base (901), wherein a plurality of oil leakage holes (904) are formed in the regulating valve base (901), and the linear diameter of the spring (903) is 0.5-1.5 mm.
3. The stabilizing hydraulic shock absorber for electric vehicles according to claim 1 or 2, wherein: the liquid flow regulating valve (9) comprises a compensation regulating valve (91) for increasing the flow of the hydraulic oil in the oil storage cylinder (5) into the working cylinder (1) and a compression regulating valve (92) for accelerating the flow of the hydraulic oil in the working cylinder (1) into the oil storage cylinder (5).
4. The stable hydraulic shock absorber for electric vehicles according to claim 3, wherein: the compensation adjusting valves (91) and the compression adjusting valves (92) are three and are distributed at the same height of the side wall of the working cylinder (1) at intervals, and the compensation adjusting valves (91) correspond to the compression adjusting valves (92) one to one.
5. The stable hydraulic shock absorber for electric vehicles according to claim 1, wherein: the upper end of the guide sleeve (4) is provided with an upper support (11) connected with the frame of the electric vehicle, and the upper support (11), the guide sleeve (4) and the piston rod (3) connected with the piston (2) are cast into a whole.
6. The stable hydraulic shock absorber for electric vehicles according to claim 5, wherein: the diameter of the piston rod (3) is 20mm, and the piston rod is made of 20CrMnTi carburizing steel.
7. The stable hydraulic shock absorber for electric vehicles according to claim 5, wherein: the bottom of the oil storage cylinder (5) is also provided with a bottom cover (13) and a lower support (12) used for being connected with an axle of the electric vehicle.
8. The stable hydraulic shock absorber for electric vehicles according to claim 1, wherein: and a magnet (14) is arranged between the compression valve (7) and the compensation valve (8) on the bottom valve seat (6).
9. The stable hydraulic shock absorber for electric vehicles according to claim 1, wherein: an oil seal assembly is arranged between the upper end of the piston rod (3) and the upper end of the working cylinder (1), and comprises an oil seal sleeve (15) fixed on the working cylinder (1) and an oil seal (16) sleeved on the piston rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834825.8U CN211343837U (en) | 2019-10-29 | 2019-10-29 | Stable hydraulic shock absorber for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834825.8U CN211343837U (en) | 2019-10-29 | 2019-10-29 | Stable hydraulic shock absorber for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343837U true CN211343837U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921834825.8U Expired - Fee Related CN211343837U (en) | 2019-10-29 | 2019-10-29 | Stable hydraulic shock absorber for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431887A (en) * | 2020-12-11 | 2021-03-02 | 苏州市通吉汽车零部件有限公司 | Inflatable double-cylinder shock absorber and production process thereof |
-
2019
- 2019-10-29 CN CN201921834825.8U patent/CN211343837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431887A (en) * | 2020-12-11 | 2021-03-02 | 苏州市通吉汽车零部件有限公司 | Inflatable double-cylinder shock absorber and production process thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |