CN221090408U - Loader shock absorber - Google Patents
Loader shock absorber Download PDFInfo
- Publication number
- CN221090408U CN221090408U CN202323281046.9U CN202323281046U CN221090408U CN 221090408 U CN221090408 U CN 221090408U CN 202323281046 U CN202323281046 U CN 202323281046U CN 221090408 U CN221090408 U CN 221090408U
- Authority
- CN
- China
- Prior art keywords
- damping
- loader
- damper
- shock
- top cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000035939 shock Effects 0.000 title claims abstract description 81
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 31
- 238000013016 damping Methods 0.000 claims abstract description 71
- 229920001971 elastomer Polymers 0.000 claims abstract description 35
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000000872 buffer Substances 0.000 claims description 17
- 230000003068 static effect Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010008 shearing Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Vibration Dampers (AREA)
Abstract
The utility model relates to a shock absorber, in particular to a loader shock absorber, comprising: the shock absorption top cover is bowl-shaped; the damping base is arranged below the damping top cover and is provided with a damping round table; the damping shaft is arranged on the damping top cover and is movably inserted on the damping round platform; and the damping rubber is respectively connected with the damping top cover, the damping base and the damping shaft. The shock absorber of the loader provided by the utility model enables the shock absorbing rubber in the shock absorbing area to deform with shearing property, improves the deformation of products, reduces the natural frequency, improves the transverse static stiffness, has high stability and obvious shock insulation effect, is not easy to lose efficacy and has long service life.
Description
Technical Field
The utility model relates to a shock absorber, in particular to a loader shock absorber.
Background
The loader operation environment is abominable, and the complete machine vibration is great in the course of the work, consequently needs the shock attenuation between engine and the frame, and a shock absorber structure for loader like CN218536253U discloses, this shock absorber structure deflection is little, horizontal quiet rigidity is poor, easy inefficacy.
Disclosure of utility model
In order to solve the problems of small deformation, poor transverse static rigidity and easy failure, the utility model provides a loader shock absorber, which comprises the following specific technical scheme:
A loader bumper shock absorber, comprising: the shock absorption top cover is bowl-shaped; the damping base is arranged below the damping top cover and is provided with a damping round table; the damping shaft is arranged on the damping top cover and is movably inserted on the damping round platform; and the damping rubber is respectively connected with the damping top cover, the damping base and the damping shaft.
Preferably, the damping rubber is provided with an annular damping groove.
Further, the damping groove is communicated with the damping shaft and is located between the damping round platform and the damping top cover.
Preferably, the shock absorbing shaft is provided with a safety lock, and the safety lock is positioned in the shock absorbing round table.
Preferably, the damping rubber is provided with an annular damping limit groove, and the damping limit groove is located above the damping base.
Further, one side of the damping limiting groove is flush with the damping top cover.
Further, the method further comprises the following steps: the limiting buffer seats are arranged on the damping base and are positioned on one side of the damping limiting groove.
Further, a safety lock is arranged on the shock absorption shaft and is positioned below the shock absorption round table.
Further, the method further comprises the following steps: and the rubber buffer ring is arranged below the safety lock.
The distance between the rubber buffer ring and the bottom of the shock absorption base is not greater than the distance between the shock absorption limiting groove and the limiting buffer base.
Compared with the prior art, the utility model has the following beneficial effects:
The shock absorber of the loader provided by the utility model enables the shock absorbing rubber in the shock absorbing area to deform with shearing property, improves the deformation of products, reduces the natural frequency, improves the transverse static stiffness, has high stability and obvious shock insulation effect, is not easy to lose efficacy and has long service life.
Drawings
FIG. 1 is a cross-sectional view of the present application;
FIG. 2 is a front view of the present application;
FIG. 3 is a top view of the present application;
Fig. 4 is a static characteristic test chart.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 3, a loader damper comprises a damper shaft 4, and a damper top cover 1, a damper rubber 2 and a damper base 3 which are sequentially arranged from top to bottom, wherein the damper rubber 2 is respectively fixed with the damper top cover 1 and the damper base 3, and the damper top cover 1 is bowl-shaped. The damping base 3 is provided with a damping round table 31, namely the damping top cover 1 and the damping base 3 are conical, and the center of the damping round table 31 is provided with a damping hole 32. The top of the shock absorbing shaft 4 is connected with the shock absorbing top cover 1, the bottom of the shock absorbing shaft 4 is movably inserted into the shock absorbing hole 32 of the shock absorbing round table 31, and the diameter of the shock absorbing shaft 4 is larger than that of the shock absorbing hole 32 and at least larger than 4 mm.
The center of the shock absorbing shaft 4 is provided with a threaded hole 41 for connecting with an engine of a loader, and the shock absorbing base 3 is provided with four connecting holes 33, wherein the connecting holes 33 are used for installing a frame. The top of the damper shaft 4 is fixed to the fixing hole 11 of the damper top cover 1 by riveting.
The damping rubber 2 is provided with an annular damping groove 21, and the damping groove 21 is communicated with the damping shaft 4 and is positioned between the damping round table 31 and the damping top cover 1. The damping groove 21 is used for accommodating extruded rubber when the damping rubber 2 deforms, so that rubber fatigue failure is avoided, and the service life of the rubber is prolonged.
A loader shock absorber adopts a bowl cone type shock absorption top cover 1 and a cone type shock absorption base 3, and after loading, shock absorption rubber 2 in a shock absorption area is enabled to have shearing deformation (belongs to shearing type), so that the deformation of a product Xu Yun is large, the natural frequency is low (14+/-1 Hz), the static stiffness of a transverse Q (360 degrees) is consistent, the stability is good, the vibration isolation effect is obvious, meanwhile, the bowl cone type shock absorption top cover 1 is adopted to protect the rubber from illumination and oil immersion, and the service life of the rubber is prolonged.
For the safety of the product, the thickness of the steel plate of the shock-absorbing base 3 is 4.5mm in consideration of the structural strength.
In order to further improve the safety, the bottom of the shock absorbing shaft 4 is provided with a safety lock 42, the safety lock 42 is annular and is of an integral structure with the shock absorbing shaft 4, the outer diameter of the safety lock 42 is larger than the diameter of the shock absorbing hole 32, the safety lock 42 is located between the shock absorbing hole 32 and the bottom surface of the shock absorbing base 3 in a free state, and the safety lock 42 limits the vertical movement distance of the shock absorbing shaft 4.
The damping rubber 2 is provided with an annular damping limit groove 22, and the damping limit groove 22 is located above the damping base 3. The damping limiting groove 22 can improve damping effect, is convenient to contain the material for deformation extrusion of the damping rubber 2, and can limit the up-and-down moving distance of the damping top cover 1.
One side of the damping limit groove 22 is flush with the damping top cover 1.
In order to ensure the service life of the product, the product adopts high-quality natural rubber, the rubber HAs excellent weather resistance and fatigue resistance, and meanwhile, under the condition of ensuring the vibration damping performance of the product, the rubber hardness adopts 52HA/60H, and the breaking strength of the rubber can be more than or equal to 22MPa.
Example two
As shown in fig. 1 to 3, on the basis of the above embodiment, the shock absorber further comprises four limiting buffer seats 6, the limiting buffer seats 6 are installed on the shock absorber base 3 in an annular array, and are located on one side of the shock absorber limiting groove 22, the limiting buffer seats 6 are made of rubber, so that the distance between upper and lower buffering can be limited, good buffering performance is achieved, and deformation of the shock absorber top cover 1 caused by impact is avoided.
The bottom of the safety lock 42 is provided with a rubber buffer ring 5, and the distance H2 between the rubber buffer ring 5 and the bottom of the shock absorption base 3 is equal to the distance H1 between the shock absorption limit groove 22 and the limit buffer seat 6.
Considering the influence of the using working condition of the loader on the shock absorber, four limiting buffer seats 6 are designed at the shock absorbing base 3, and the effect of the four limiting buffer seats is to limit the shearing deformation of the rubber in the shock absorbing area in a certain control range, namely the width range of the shock absorbing limiting groove 22, so that the influence of the overscope deformation of the rubber in the shock absorbing area on the service life is prevented.
The anti-impact safety lock 42 of the product is reinforced, the diameter of the safety lock 42 is increased, and meanwhile, the rubber buffer ring 5 is additionally arranged at the bottom of the safety lock 42, so that an important reliability protection effect can be achieved on the up-down impact of the product.
One of the parameters of a loader shock absorber is as follows:
Static rigidity of the working area in the P direction is 2600N/mm plus or minus 15%; deformation is 1.2-3.5mm;
Q is 2210N/mm plus or minus 15% to the static rigidity of the working area; (under 4000N load)
The static stiffness ratio of Q/P is more than 0.8;
the impact protection static rigidity is more than 8000N/mm;
When the rated load 3670N of the P-direction working interval is reached, the dynamic and static stiffness ratio is approximately equal to 1.37;
natural frequency under rated load is 14+/-1 Hz.
As shown in the product static characteristic test chart (P pressurization) of fig. 4:
From the characteristic diagrams tested above, it can be seen that the static stiffness of the vibration reduction working area of the shock absorber after the product is loaded meets the technical requirement, and the static stiffness requirement of the design can be completely ensured in the working variable area of 1-3.5 mm, so that the vibration reduction effect can be completely satisfied.
When the load of the shock absorber is increased by external force, namely the deformation of the shock absorber is also increased, because the four limit buffer seats 6 designed on the shock absorbing base 3 play a role, the static stiffness of the product is also gradually increased, the purpose of the shock absorber is to limit the deformation of the shock absorber to be controlled within a certain reasonable allowable range, if the shock absorber is subjected to larger impact load, the buffer at the bottom of the safety lock 42 plays a key role, the rubber in the shock absorbing area of the shock absorber is limited to be deformed beyond the limit, and the damage and failure of the shock absorber can be prevented.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of the specification and practice of the utility model without the need for inventive faculty, and are within the scope of the claims.
Claims (10)
1. A loader bumper shock absorber, comprising:
The shock absorption top cover (1) is bowl-shaped;
the damping base (3) is arranged below the damping top cover (1) and is provided with a damping round table (31);
The damping shaft (4) is arranged on the damping top cover (1) and is movably inserted into the damping round table (31); and
And the damping rubber (2) is respectively connected with the damping top cover (1), the damping base (3) and the damping shaft (4).
2. A loader damper according to claim 1, characterized in that the damping rubber (2) is provided with an annular damping groove (21).
3. A loader damper according to claim 2, characterized in that the damper slot (21) communicates with the damper shaft (4) and is located between the damper table (31) and the damper top cap (1).
4. A loader damper according to claim 1, characterized in that the damper shaft (4) is provided with a safety lock (42), the safety lock (42) being located inside the damper cone (31).
5. A loader shock absorber according to any one of claims 1-3, wherein the shock absorbing rubber (2) is provided with an annular shock absorbing limit groove (22), and the shock absorbing limit groove (22) is located above the shock absorbing base (3).
6. A loader bumper according to claim 5, characterized in that one side of the bumper stop groove (22) is flush with the bumper cap (1).
7. The loader bumper shock absorber of claim 5, further comprising: and the limiting buffer seats (6) are arranged on the shock absorption base (3) and are positioned on one side of the shock absorption limiting groove (22).
8. A loader damper according to claim 7, characterized in that the damper shaft (4) is provided with a safety lock (42), the safety lock (42) being located below the damper table (31).
9. The loader bumper shock absorber of claim 8, further comprising: and the rubber buffer ring (5) is arranged below the safety lock (42).
10. A loader bumper according to claim 9, characterized in that the distance between the rubber buffer ring (5) and the bottom of the bumper base (3) is not greater than the distance between the bumper limiting groove (22) and the limiting bumper base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323281046.9U CN221090408U (en) | 2023-12-04 | 2023-12-04 | Loader shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323281046.9U CN221090408U (en) | 2023-12-04 | 2023-12-04 | Loader shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221090408U true CN221090408U (en) | 2024-06-07 |
Family
ID=91329540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323281046.9U Active CN221090408U (en) | 2023-12-04 | 2023-12-04 | Loader shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221090408U (en) |
-
2023
- 2023-12-04 CN CN202323281046.9U patent/CN221090408U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |