CN110715014A - Damping type shock-absorbing motor vehicle - Google Patents
Damping type shock-absorbing motor vehicle Download PDFInfo
- Publication number
- CN110715014A CN110715014A CN201911025641.1A CN201911025641A CN110715014A CN 110715014 A CN110715014 A CN 110715014A CN 201911025641 A CN201911025641 A CN 201911025641A CN 110715014 A CN110715014 A CN 110715014A
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- damping
- inner cylinder
- touching
- outer cylinder
- cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a damping type shock-absorbing motor vehicle.A bottom-touching damping part is arranged at the bottom of an inner cylinder arranged in an outer cylinder in the direction of facing the inner cylinder, and a damping gap is formed between the inner cylinder and the bottom-touching damping part in the transverse direction when the inner cylinder descends and is externally sleeved on the bottom-touching damping part; the inner cylinder is sleeved in the outer cylinder through a piston, hydraulic oil is filled in a space in the outer cylinder, which is opposite to the descending direction of the piston, and the space is communicated with the inner cylinder; in the process that the inner cylinder descends and is externally sleeved on the bottom-touching damping part, hydraulic oil in the outer cylinder can only enter the inner cylinder through the damping gap, so that effective damping is formed; because the damping piece that touches at the bottom is located the urceolus bottom, touch the damping piece and begin to form the damping at the port under getting into the inner tube, the height that the damping piece was touched at the bottom is touched in the adjustment, can set for the position that the damping begins, avoid touching at the bumper shock absorber when the road surface of comparatively injustice goes at the end, improve travelling comfort and guarantee the nature controlled, do benefit to the life who guarantees the bumper shock absorber, at less improvement (only increase one and touch the damping piece at the bottom), can reach and prevent touching at the bottom, the purpose that the protection part caused the harm by touching at the bottom, improve the nature controlled, travelling comfort and stationarity and.
Description
Technical Field
The invention relates to a motor vehicle part and a motor vehicle, in particular to a shock absorber and a motor tricycle.
Background
The shock absorber is a necessary part of the motor vehicle, the structure influences the controllability and the comfort of the whole vehicle, and the stability and the reliability of the performance directly relate to the safety, the reliability, the comfort and the controllability of the whole vehicle. The existing shock absorber generally comprises an inner cylinder, an outer cylinder and a shock absorption spring; the inner cylinder is generally sleeved in the outer cylinder through a piston (the piston reciprocates in the outer cylinder along with the inner cylinder), a space between the outer cylinder and the piston, which is opposite to the descending direction, is filled with hydraulic oil, when the inner cylinder reciprocates, the hydraulic oil flows in the space and the inner cylinder to play roles of lubrication and limited liquid damping, and in fact, as the diameters of the inner cylinder and the outer cylinder are not greatly different, the damping effect is also limited, and effective compression damping force cannot be formed.
In the prior art, in order to save the overall cost, one of the front shock absorbers of the motor tricycle adopts the structure, the shock absorber with the structure recovers the damping to have a better effect, but the effective compression damping can not be formed, as shown by a solid line in the figure, therefore, under the condition that the shock absorber touches the bottom slightly on an uneven road surface, the controllability, the comfort and the safety and reliability of the whole motorcycle are seriously influenced.
Therefore, a shock absorber is needed, which can reasonably adjust the compression damping, the recovery damping and the buffering rigidity of the shock absorber without increasing more cost, and can not easily touch the bottom when the shock absorber runs under common loads and uneven road surfaces, so that the controllability, the comfort, the stability and the safety and the reliability are improved.
Disclosure of Invention
In view of this, the invention provides a damping type damping motor vehicle, which can reasonably adjust the compression damping, the recovery damping and the buffering rigidity of a shock absorber without increasing more cost, and can not easily touch the bottom when the motor vehicle runs under common loads and on uneven roads, thereby improving the controllability, the comfort, the stability and the safety and the reliability.
The invention discloses a damping type shock-absorbing motor vehicle, which comprises wheels, a vehicle frame and a vehicle body, wherein a shock absorber is arranged between the vehicle frame and the wheels, the shock absorber comprises an inner cylinder, an outer cylinder and a shock-absorbing main spring, the shock-absorbing main spring is sleeved outside the inner cylinder and the outer cylinder at the same time, the damping type shock-absorbing motor vehicle also comprises a bottom-touching damping part which is arranged at the inner bottom of the outer cylinder facing the inner cylinder, and a damping gap is formed between the inner cylinder and the bottom-touching damping part in the transverse direction when the inner cylinder; the inner cylinder is sleeved in the outer cylinder through a piston, hydraulic oil is filled in a space in the outer cylinder, which is opposite to the descending direction of the piston, and the space is communicated with the inner cylinder; as shown, the space opposite to the space on the piston descending (which refers to the compression stroke) and the space on the piston form a seal through the piston; in the process that the inner cylinder descends and is externally sleeved on the bottom-touching damping part, hydraulic oil in the outer cylinder can only enter the inner cylinder through the damping gap, so that effective damping is formed; because the bottom-touching damping part is positioned at the bottom in the outer barrel (in the direction of the inner barrel in the process of facing the compression stroke), the bottom-touching damping part starts to form damping when entering the lower port of the inner barrel, the height of the bottom-touching damping part is adjusted, the position where the damping starts can be set, the bottom touching can be effectively prevented, the shock absorber is prevented from touching the bottom when the shock absorber runs on a rough road surface, the running comfort is improved, the controllability is ensured, the service life of the shock absorber is favorably ensured, the improvement is small (only one bottom-touching damping part is added), the bottom touching prevention can be achieved, the part is protected from being damaged by touching the bottom, and the use cost is.
Further, the cross sections of the inner cylinder and the outer cylinder are both circular, the cross section of the bottom-touching damping part is circular, and a radial damping gap (annular gap) is formed between the outer circle of the bottom-touching damping part and the inner circle of the inner cylinder when the inner cylinder moves downwards and is sleeved outside the bottom-touching damping part; the round structure is beneficial to manufacturing and assembling, the working efficiency is improved, and the manufacturing cost is saved.
Further, the top of touching end damping piece and facing to the inner tube is frustum shape, and frustum shape top makes the damping process go on by little to big buffering, avoids because sudden damping leads to great pause and frustrates and feels, does benefit to the security that further improvement travelling comfort controlled, and frustum shape structure still does benefit to and carries out down guide to the inner tube simultaneously, avoids off-centre, does benefit to and causes the eccentric wear to the piston in the process before touching the end.
Further, the radial damping gap is 0.3-0.8mm, preferably 0.6mm, the radial damping gap refers to the damping gap of the cylindrical part of the bottoming damping part, and the damping gap in the range is combined with the main damping spring with the sudden change pitch, so that bottoming can be effectively prevented, and the driving comfort is ensured.
Further, the taper of the frustum shape is not more than 20 degrees, preferably 15 degrees; the frustum shape accounts for 40-50%, preferably 50% of the axial length of the bottoming damping piece; the length proportion of the taper and the frustum shape can effectively buffer the vibration before the bottom-touching prevention damping, the damping buffering process can be smoothly transited while the compression damping force is improved, the driving comfort is ensured, and the bottom-touching is effectively avoided.
The invention has the beneficial effects that: according to the damping type damping motor vehicle, the shock absorber adopts the bottom-touch-preventing damping piece arranged at the bottom of the outer cylinder, and in the process that the inner cylinder descends and is externally sleeved on the bottom-touch damping piece, hydraulic oil in the outer cylinder can only enter the inner cylinder through the damping gap, so that effective damping is formed; because the bottom-touching damping part is positioned at the bottom in the outer barrel (in the direction of the inner barrel in the process of facing the compression stroke), the bottom-touching damping part starts to form damping when entering the lower port of the inner barrel, the height of the bottom-touching damping part is adjusted, the position where the damping starts can be set, the shock absorber is prevented from touching the bottom when the shock absorber runs on a rugged road surface, the running comfort is improved, the controllability is ensured, the service life of the shock absorber is favorably ensured, the purposes of preventing bottom touching and protecting parts from being damaged by bottom touching can be achieved through minor improvement (only one bottom-touching damping part is added), and the controllability, the comfort and the stability and the safety and reliability are improved.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic view of the shock absorber of the present invention;
FIG. 2 is a damping force diagram after adding a bottoming resistant damping member;
FIG. 3 is a partial schematic view of a shock absorber applied to a vehicle.
Detailed Description
FIG. 1 is a schematic view showing the structure of a shock absorber according to the present invention, FIG. 2 is a force diagram showing the damping after adding a bottoming prevention damping member, and FIG. 3 is a partial schematic view showing the shock absorber applied to a vehicle, as shown in the drawings: the damping type shock absorption motor vehicle comprises wheels, a vehicle frame and a vehicle body, wherein a shock absorber is arranged between the vehicle frame and the wheels and comprises an inner cylinder 1, an outer cylinder 2 and a shock absorption main spring 3, the shock absorption main spring 3 is sleeved outside the inner cylinder 1 and the outer cylinder 2 at the same time, the damping type shock absorption motor vehicle also comprises a bottom-touching damping part 5 which is arranged at the inner bottom of the outer cylinder facing the inner cylinder, and a damping gap is formed between the inner cylinder 1 and the bottom-touching damping part in the transverse direction when the inner cylinder 1 descends and is sleeved outside the bottom-touching damping part; the inner cylinder is sleeved in the outer cylinder through a piston, hydraulic oil 6 is filled in a space in the outer cylinder, which is opposite to the descending of the piston, and the space is communicated with the inner cylinder; as shown in the figure, the space opposite to the space on the piston 4 which moves downwards (referred to as a compression stroke) and the space on the piston 4 form a seal through the piston; in the process that the inner cylinder descends and is externally sleeved on the bottom-touching damping part, hydraulic oil 6 in the outer cylinder can only enter the inner cylinder through the damping gap, so that effective damping is formed; because the bottom-touching damping part is positioned at the inner bottom of the outer cylinder (facing the incoming direction of the inner cylinder in the compression stroke), the bottom-touching damping part 5 starts to form damping when entering the lower port of the inner cylinder to form compression damping force, and as shown by a dotted line below a horizontal axis of a coordinate in fig. 2, the compression damping can be effectively increased; this structure touches the height of end damping piece through the adjustment, can set for the position that the damping begins, can effectively prevent to touch the end, avoids the bumper shock absorber to touch the end when comparatively uneven road surface goes, improves travelling comfort and guarantees the nature controlled, does benefit to the life who guarantees the bumper shock absorber, at less improvement (only increase one and touch end damping piece), can reach and prevent touching the end, protect the part not caused the harm by touching the end to practice thrift use cost.
In the embodiment, the cross sections of the inner cylinder 1 and the outer cylinder 2 are both circular, the cross section of the bottom-touching damping part 5 is circular, and a radial damping gap is formed between the cross section of the bottom-touching damping part 1 and the inner circle of the inner cylinder when the inner cylinder 1 descends and is externally sleeved on the bottom-touching damping part 5; the round structure is beneficial to manufacturing and assembling, the working efficiency is improved, and the manufacturing cost is saved; as shown in the figure, the bottom-touching damping piece 5 is a metal cylindrical piece, the top end of the bottom-touching damping piece is in a frustum shape, and the bottom-touching damping piece is fixed at the inner bottom of the outer cylinder 2 through screws.
In this embodiment, the top of touching end damping piece 5 to the inner tube is frustum shape 51, and frustum shape 51 top makes the damping process go on by little to big buffering, avoids feeling of frustrating owing to the great pause that abrupt damping leads to, does benefit to the security that further improves the travelling comfort and controls, and frustum shape structure still does benefit to and leads to down the inner tube simultaneously, avoids off-centre, does benefit to and causes the eccentric wear to the piston in the process before touching the end.
In this embodiment, the radial damping gap is 0.3-0.8mm, preferably 0.6mm, and the radial damping gap refers to the damping gap of the cylindrical part of the bottoming damping member, and the damping gap in this range is combined with the main damping spring with an abrupt change pitch, so that bottoming can be effectively prevented, and the riding comfort is ensured.
In this embodiment, the taper of the frustum-shaped portion 51 is not more than 20 °, preferably 15 °; the frustum shape accounts for 40-50%, preferably 50% of the axial length of the bottoming damping piece; the length proportion of the taper and the frustum shape can form gentle linear change in the damping process to gradually increase, so that the comfort and the stability of driving are improved, the vibration before bottom-touch prevention damping can be effectively buffered, the damping buffering process can be gently transited while the compression damping force is improved, the driving comfort is ensured, and bottom-touch is effectively avoided.
In the present embodiment, the motorcycle is taken as an example of the present invention, and as shown in fig. 3, the main damping spring 3 is an abrupt pitch spring composed of a long pitch section 31 and a short pitch section 32; the abrupt pitch spring refers to that the long pitch section is a standard spring with larger pitch (the pitch is the same), and the short pitch section is a standard spring with smaller pitch (the pitch is the same), which is different from the gradual spring in the prior art;
the matching relation between the outer cylinder 2 and the inner cylinder 1 of the shock absorber and the main damping spring 3 belongs to the existing structure, namely the inner cylinder is generally sleeved in the outer cylinder through a piston 4 (the piston 4 reciprocates in the outer cylinder along with the inner cylinder), the main damping spring is sleeved outside the outer cylinder and the inner cylinder in the length direction, the space of the outer cylinder, which is opposite to the descending direction of the piston 4, is filled with hydraulic oil, the hydraulic oil plays a lubricating role when the inner cylinder reciprocates, and the hydraulic oil can flow into a smaller space (with smaller diameter difference) of the inner cylinder from a larger space of the outer cylinder, and the formed compression damping force can not generate an effect on;
in this structure, adopt sudden change pitch spring, combine aforementioned damping piece that touches the end can form segmentation combination damping, increase the compression damping stroke, have longer buffering before the bumper shock absorber touches the end to do benefit to and avoid touching the end, increase the travelling comfort.
In this embodiment, the elastic modulus of the long pitch section 31 is 20 to 30N/mm, preferably 26.3N/mm, and the elastic modulus of the short pitch section 32 is 40 to 60N/mm, preferably 50.4N/mm; this elastic coefficient scope compares all to some extent with the main damping spring that prior art adopted usually to adjust the cushion force in same root sudden change spring, as shown in the figure, cushion elasticity has less flex point, and is stable and comfortable when going on normal and slightly uneven road surface, increases cushion elasticity when great uneven road surface, increases when avoiding touching the end and guarantees travelling comfort and assurance security.
The proportion of the long pitch section 31 in the total length of the spring is 65-75%, preferably 70%, so that the buffer stroke is ensured to be sufficient in the normal running process, and the running comfort is improved; the pitch of the long pitch section is 26-28mm, preferably 27mm, the pitch of the short pitch section is 14-16mm, preferably 16mm, and the setting of the pitch range ensures the effective connection of the vehicle running buffer and the anti-bottoming buffer, and ensures the running comfort and the controllability.
In this embodiment, the damping main spring 3 is sleeved outside the inner cylinder 1 and the outer cylinder 2 in a manner that the long-pitch section 31 is downward, and the structure is favorable for ensuring the stability of the main damping spring 3 and the regularity of running buffering and bottom-touch prevention buffering, so that the running comfort and the controllability are ensured; the main damping spring is also provided with a precompression amount adjusting component, and any structure of the existing damper for adjusting the precompression of the spring can be adopted, so that the details are not repeated; the damping device can be adjusted at any time according to damping requirements, and is simple in structure and convenient to use.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The utility model provides a damped motor vehicle of damping type, includes wheel, frame and automobile body, be provided with the bumper shock absorber between frame and wheel, the bumper shock absorber includes inner tube, urceolus and shock attenuation main spring, the outer cover of shock attenuation main spring in inner tube and urceolus simultaneously, its characterized in that: the inner cylinder is sleeved with the bottom-touching damping part in a descending manner, and a damping gap is formed between the inner cylinder and the bottom-touching damping part in the transverse direction; the inner cylinder is sleeved in the outer cylinder through a piston, hydraulic oil is filled in a space in the outer cylinder, which is opposite to the descending direction of the piston, and the space is communicated with the inner cylinder.
2. The damped vehicle of claim 1, wherein: the cross sections of the inner cylinder and the outer cylinder are circular, the cross section of the bottom-touching damping part is circular, and a radial damping gap is formed between the outer circle of the bottom-touching damping part and the inner circle of the inner cylinder when the inner cylinder moves downwards and is sleeved outside the bottom-touching damping part.
3. The damped vehicle of claim 1, wherein: the top of the bottom-touching damping part facing the inner cylinder is in a frustum shape.
4. The damped vehicle of claim 1, wherein: the radial damping gap is 0.3-0.8 mm.
5. The damped vehicle of claim 4, wherein: the radial damping gap is 0.6 mm.
6. A damped vehicle according to claim 3 wherein: the taper of the frustum shape does not exceed 20 degrees; the frustum shape accounts for 40-50% of the axial length of the bottoming damping piece.
7. The damped vehicle of claim 6, wherein: the taper of the frustum shape is 15 degrees; the frustum shape accounts for 50% of the axial length of the bottoming damping piece.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019209997907 | 2019-06-30 | ||
| CN201920999790 | 2019-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110715014A true CN110715014A (en) | 2020-01-21 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921810923.8U Active CN211501457U (en) | 2019-06-30 | 2019-10-25 | Damping type shock absorber and motor tricycle |
| CN201911025641.1A Pending CN110715014A (en) | 2019-06-30 | 2019-10-25 | Damping type shock-absorbing motor vehicle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921810923.8U Active CN211501457U (en) | 2019-06-30 | 2019-10-25 | Damping type shock absorber and motor tricycle |
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| Country | Link |
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| CN (2) | CN211501457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276599A (en) * | 2021-06-18 | 2021-08-20 | 安徽工业大学 | Electric vehicle wheel assembly capable of recycling road surface excitation energy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2067702C1 (en) * | 1991-06-25 | 1996-10-10 | Грицунов Владимир Петрович | Vibration insulation support |
| CN2586009Y (en) * | 2002-06-08 | 2003-11-12 | 宋德彦 | Built-in auxiliary vibration damper of farm tricycle |
| CN2809330Y (en) * | 2005-06-17 | 2006-08-23 | 张丙金 | Novel shock absorber |
| CN202144850U (en) * | 2011-05-20 | 2012-02-15 | 邹松林 | Elastic damping vibration isolator |
| CN103171394A (en) * | 2013-03-21 | 2013-06-26 | 丁占鳌 | Three-wheeled vehicle suspension eliminating vibration through throttle resistance and friction |
| CN103423367A (en) * | 2013-08-19 | 2013-12-04 | 苏州市胜能弹簧五金制品有限公司 | Spring shock absorber |
-
2019
- 2019-10-25 CN CN201921810923.8U patent/CN211501457U/en active Active
- 2019-10-25 CN CN201911025641.1A patent/CN110715014A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2067702C1 (en) * | 1991-06-25 | 1996-10-10 | Грицунов Владимир Петрович | Vibration insulation support |
| CN2586009Y (en) * | 2002-06-08 | 2003-11-12 | 宋德彦 | Built-in auxiliary vibration damper of farm tricycle |
| CN2809330Y (en) * | 2005-06-17 | 2006-08-23 | 张丙金 | Novel shock absorber |
| CN202144850U (en) * | 2011-05-20 | 2012-02-15 | 邹松林 | Elastic damping vibration isolator |
| CN103171394A (en) * | 2013-03-21 | 2013-06-26 | 丁占鳌 | Three-wheeled vehicle suspension eliminating vibration through throttle resistance and friction |
| CN103423367A (en) * | 2013-08-19 | 2013-12-04 | 苏州市胜能弹簧五金制品有限公司 | Spring shock absorber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276599A (en) * | 2021-06-18 | 2021-08-20 | 安徽工业大学 | Electric vehicle wheel assembly capable of recycling road surface excitation energy |
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| Publication number | Publication date |
|---|---|
| CN211501457U (en) | 2020-09-15 |
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Application publication date: 20200121 |