CN217301396U

CN217301396U - Protective cover structure of shock absorber

Info

Publication number: CN217301396U
Application number: CN202220561450.8U
Authority: CN
Inventors: 吴龙梅; 康权; 林虎; 李青
Original assignee: Beijing Geely University
Current assignee: Beijing Geely University
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-08-26
Anticipated expiration: 2032-03-15

Abstract

The utility model relates to a technical field of shock absorber discloses a visor structure of shock absorber, including the open barrel of one end, the equidistance interval is provided with a plurality of recesses in its barrel, and inner wall between the adjacent recess is equipped with a plurality of honeycomb panel towards the protrusion of barrel axis on the convex adjacent lateral wall, and the honeycomb panel on every lateral wall is equallyd divide and is do not to the direction slope that is close to every recess, still is equipped with the collection oil subassembly that is used for collecting the oil globule in the barrel for solve the problem of the false oil leak of hydro-cylinder.

Description

Protective cover structure of shock absorber

Technical Field

The utility model relates to a technical field of shock absorber, concretely relates to visor structure of shock absorber.

Background

The dust cover of the shock absorber has the function of preventing external dust from entering, and oil leakage is caused by scratching the oil seal. Most of the dust covers of column type shock absorbers in the market at present are made of plastics, and have the advantages of light weight, detachability and low cost, but due to the reasons of manufacturing, transportation, assembly, matching and the like, the ovality of the dust cover is very large, the coaxiality of the dust cover and the shock absorber is poor, and in addition, the shock absorber is subjected to certain lateral force, the dust cover is easy to cut and rub an oil storage cylinder in the movement of the shock absorber, so that the oil storage cylinder is rusted due to paint falling. In order to prevent the dust cover from rubbing the oil storage barrel, a new protective cover structure can be designed, so that the dust cover cannot be contacted with the oil storage barrel in the whole movement, and the rubbing and paint dropping are avoided.

Because the automobile needs to adapt to different working conditions, the most important thing is to prevent the low-temperature shock absorber oil from condensing, according to the physicochemical property of the oil, the low-temperature performance is good, the relative high-temperature characteristic will weaken, because the oil flash point is lower, after the shock absorber leads to the rapid temperature rise in the dust cover in the jolting road condition, the oil film attached to the piston rod can volatilize into the oil mist, after condensing, the oil film can be attached to the outer wall of the shock absorber cylinder, the false appearance of oil leakage is caused, at this moment, the performance of the shock absorber does not change, the user sees the phenomenon to judge that the shock absorber leaks oil, and the host factory wastes a large amount of parts to replace and is the shock absorber that loses efficacy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a visor structure of shock absorber for solve most oil droplets and reveal and cause the problem of the false oil leak of hydro-cylinder.

The utility model discloses a following technical scheme realizes:

the utility model provides a visor structure of shock absorber, includes the open barrel of one end, and the equidistance interval is provided with a plurality of recesses in its barrel, and inner wall between the adjacent recess is equipped with a plurality of honeycomb panel towards the protrusion of barrel axis on the convex adjacent lateral wall, and the honeycomb panel on every lateral wall is equallyd divide and is do not to the direction slope that is close to every recess, still is equipped with the collection oil subassembly that is used for collecting the oil globule in the barrel.

After the shock absorber rapidly heats up in the dust cover due to the bumpy road condition, the oil film attached to the piston rod volatilizes into oil mist, the oil mist is attached to the outer wall of the shock absorber cylinder after being condensed, the oil leakage false image is caused, the performance of the shock absorber is not changed at the moment, a user sees the phenomenon and judges that the shock absorber leaks oil, and a host factory wastes a large number of parts to replace the shock absorber and the shock absorber is a failed shock absorber.

The utility model discloses a honeycomb panel can increase the area of contact of oil mist, because the shock absorber is not lasting intensification all the time, treats the temperature decline back, and the oil mist attached to on the honeycomb panel forms tiny oil bead, because the honeycomb panel is the slope, and tiny oil bead flows into the oily subassembly of collection along the honeycomb panel in flowing to nearest recess, and tiny oil bead is collected to the oily subassembly of collection for solve most oil bead and reveal and cause the problem of the false oil leak of hydro-cylinder.

Further, the oil collecting assembly comprises an annular plate arranged at the open end of the cylinder body, a connecting cylinder is arranged on the annular plate, and an oil collecting groove is formed by the connecting cylinder, the annular plate and the inner wall of the cylinder body.

Further, be equipped with the guide ring on the connecting cylinder, the guide ring is increased in proper order by lower supreme cross-sectional area, and the inside air current that can produce of barrel is protected to the shock absorber reciprocating motion in-process, the utility model discloses a guide ring is by lower supreme towards the slope of barrel inner wall, can go out gas from the downward flow in-process of local recess through the guide ring drainage, effectively guarantees the gas emission that the buffer block strikeed in the shock absorber motion, avoids the abnormal sound to and gas pressure influences the impact of oil blanket, and can accelerate in the tiny-oil-drop gets into the oil trap.

Furthermore, a through hole is formed in the closed end of the cylinder body, a chamfer is arranged at the through hole, the depth of the chamfer is determined according to the leakage height of the oil seal, and the oil seal is prevented from being contacted by the protective cover to cause oil leakage; the shock absorber can use no oil seal packing ring (the oil seal packing ring is the metal gasket, and thickness is 3~4mm usually), and the shock absorber uses a part less, can reduce cost.

Furthermore, the annular flange is arranged on the outer peripheral wall of the barrel body, so that the oil storage barrel is effectively prevented from being scratched due to the deviation of the dust covers, and even when the shock absorber is in the maximum stroke, the oil storage barrel cannot be scratched due to the maximum deviation of the dust covers

Furthermore, a plurality of guide ribs are arranged on the peripheral wall of the barrel at equal intervals, so that the guide movement of the shock absorber during the up-and-down movement of the dust cover in work is effectively guaranteed, materials can be saved, and the cost is reduced.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses a plurality of recesses are provided with at equidistance interval in the barrel, the inner wall between the adjacent recess is towards the barrel axis protrusion, be equipped with a plurality of honeycomb panels on the adjacent lateral wall of protrusion, the honeycomb panel on each lateral wall is equallyd divide respectively to the direction slope that is close to each recess, still be equipped with the collection oil subassembly that is used for collecting the oil droplet in the barrel, be used for solving the false oil leak problem of hydro-cylinder;

2. the utility model discloses a be equipped with the guide ring on the connecting cylinder, the guide ring increases from lower to upper cross-sectional area in proper order, protects the inside air current that can produce of barrel in the shock absorber reciprocating motion process, the utility model discloses a guide ring from lower to upper towards the barrel inner wall slope, can flow the process of gas from local recess downward through the guide ring drainage, effectively guarantee the gas emission of buffer block impact in the shock absorber motion, avoid the abnormal sound to and the impact influence of gas pressure to the oil blanket;

3. the utility model discloses a seted up the through-hole on the closed end of barrel, through-hole department is equipped with the chamfer, and the chamfer degree of depth is according to the outer height of leaking of oil seal, avoids visor contact oil seal, leads to the oil leak.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a perspective view of the present invention;

FIG. 4 is a sectional view of another embodiment of the present invention;

fig. 5 is the schematic view of the drainage channel structure of the present invention.

Reference numbers and corresponding part names in the drawings:

1-a cylinder body; 2-a groove; 3-a honeycomb plate; 4-an annular plate; 5-connecting the cylinder; 6-a guide ring; 7-chamfering; 8-a flange; 9-a guide rib; 10-a through hole; 11-small oil droplets; 12-a drainage channel; 13-a buffer block; 14-a dust cover; 15-oil sealing.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood, the following description is given for further details of the present invention with reference to the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention, and are not intended to limit the present invention.

Example 1:

as shown in fig. 1 to 4, a protective cover structure of a shock absorber comprises a cylinder body 1 with an open end, a plurality of grooves 2 are arranged in the cylinder body 1 at equal intervals, the inner wall between adjacent grooves 2 protrudes towards the axis of the cylinder body 1, a plurality of honeycomb plates 3 are arranged on adjacent protruding side walls, the honeycomb plates 3 on each side wall are respectively inclined towards the direction close to each groove 2, an oil collecting assembly for collecting oil droplets is further arranged in the cylinder body 1, the oil collecting assembly comprises an annular plate 4 arranged on the open end of the cylinder body 1, a connecting cylinder 5 is arranged on the annular plate 4, an oil collecting groove is formed by the connecting cylinder 5, the annular plate 4 and the inner wall of the cylinder body 1, a guide ring 6 is arranged on the connecting cylinder 5, the cross-sectional area of the guide ring 6 is sequentially increased from bottom to top, a through hole 10 is arranged on the closed end of the cylinder body 1, a chamfer 7 is arranged at the through hole 10, an annular flange 8 is arranged on the outer peripheral wall of the cylinder body 1, a plurality of guide ribs 9 are arranged on the peripheral wall of the barrel 1 at equal intervals.

The utility model discloses a theory of operation:

can increase the area of contact of oil mist through honeycomb panel 3, because the shock absorber does not continuously heat up all the time, treat the temperature decline back, the oil mist attached to on honeycomb panel 3 forms tiny oil droplet 11, because honeycomb panel 3 is the slope, in tiny oil droplet 11 is along honeycomb panel 3 flow direction nearest recess 2, tiny oil droplet 11 flows into the oil catch bowl along recess 2 for solve the pseudo oil leak's of hydro-cylinder problem.

Through the inclination of guide ring 6 from bottom to top towards the inner wall of barrel 1, can flow gas out through guide ring 6 from local recess 2 downward flow in-process, as shown by the arrow in fig. 2, effectively guarantee the gaseous emission that buffer block 13 assaulted in the shock absorber motion, avoid abnormal sound to and gas pressure is to the impact influence of oil blanket, and when gas flows in recess 2, can accelerate in little oil droplet 11 gets into the oil trap.

A chamfer 7 is arranged at the through hole 10, the depth of the chamfer 7 is determined according to the leakage height of the oil seal 15, and the protective cover is prevented from contacting the oil seal 15 to cause oil leakage; an oil seal 15 gasket is arranged at the oil seal 15 position generally, so that the oil seal 15 gasket (the oil seal gasket is a metal gasket, the thickness is usually 3-4 mm) can be omitted on the shock absorber with the structure, one part is omitted for the shock absorber, and the cost can be reduced; the flange 8 can effectively prevent the dust cover 14 from deviating to scratch the oil storage cylinder, and even when the shock absorber is in the maximum stroke, the dust cover 14 deviates to the maximum extent and cannot scratch the oil storage cylinder; the guide ribs 9 can effectively ensure the guide movement of the dust cover 14 during the up-and-down movement of the shock absorber, and can save materials and reduce cost.

Example 2:

on the basis of embodiment 1, as shown in fig. 5, each honeycomb plate 3 is provided with a drainage channel 12, and after the plurality of honeycomb plates 3 are spliced, the plurality of drainage channels 12 form a drainage channel for the small oil droplets 11 to flow to the grooves 2.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a visor structure of shock absorber, includes open barrel (1) of one end, a serial communication port, the equidistance interval is provided with a plurality of recesses (2) in barrel (1), inner wall between adjacent recess (2) is towards barrel (1) axis protrusion, be equipped with a plurality of honeycomb panel (3) on the convex adjacent lateral wall, honeycomb panel (3) on every lateral wall are equallyd divide respectively to the direction slope that is close to every recess (2), still be equipped with the collection oil subassembly that is used for collecting the oil globule in barrel (1).

2. A protective cover structure for a shock absorber according to claim 1, wherein the oil collecting member comprises an annular plate (4) provided on the open end of the cylinder (1), the annular plate (4) being provided with a connecting cylinder (5), the annular plate (4) and the inner wall of the cylinder (1) forming an oil collecting groove.

3. A protective cover structure for a shock absorber according to claim 2, wherein the connecting cylinder (5) is provided with a guide ring (6), and the cross-sectional area of the guide ring (6) increases from bottom to top.

4. A protective cover structure for a shock absorber as claimed in any one of claims 1 to 3, wherein a through hole (10) is provided at the closed end of the cylinder (1), and a chamfer (7) is provided at the through hole (10).

5. A protective cover structure for a shock absorber as claimed in claim 4, wherein the outer peripheral wall of the cylinder (1) is provided with an annular flange (8).

6. A protective cover structure for a shock absorber as claimed in claim 5, wherein the outer peripheral wall of the cylinder (1) is provided with a plurality of guide ribs (9) at equal intervals.