CN213108986U - Oil tank damping device and excavator - Google Patents

Abstract

The embodiment of the application provides an oil tank damping device and an excavator, and the oil tank damping device comprises an upper damping pad and a lower damping pad; the peripheries of the upper shock pad and the lower shock pad are connected in a sealing mode, and liquid oil for shock absorption is injected into the middle of the upper shock pad and the lower shock pad. On this basis, can also set up the damping device that the shock attenuation module formed two-layer, the damping module acts as the cushioning effect on the one hand, plays the effect of connecting the oil tank again on the one hand, and the damping module further also can be divided into damping module and lower damping module to go into in last damping module and the lower damping module and be used for absorbing liquid oil. The design mode is low in cost and simple in structure, and the problems of cost and difficulty in disassembly caused by the fact that a spring is used as a damping device in the prior art are solved.

Description

Oil tank damping device and excavator

Technical Field

The application designs the shock attenuation field, concretely relates to oil tank damping device and excavator.

Background

The oil tank is the part of loading petrol in the car, and petrol belongs to inflammable substance, and the car can shake because the operation of road conditions or self machine can take place at the in-process of traveling, and the oil tank in the car generally adopts direct fixed mounting, and vibrations can be conducted the oil tank. If proper shock absorption measures are not taken to reduce the vibration of the oil tank, the gasoline can leak due to the overlarge vibration amplitude of the oil tank, and danger is caused. The current damping device adopts a complex spring mechanism, and the cost is too high; or adopt simple rubber pad, the shock attenuation effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the application provides an oil tank damping device and an excavator.

In a first aspect, the present application provides an oil tank damping device, comprising: an upper cushion and a lower cushion;

the periphery of the upper shock pad and the periphery of the lower shock pad are connected in a sealing mode, and liquid oil with low compressibility and used for shock absorption is injected into the middle of the upper shock pad and the lower shock pad.

In the implementation process, the shock absorption pads adopt an upper layer structure and a lower layer structure, the shock can be weakened in the middle of the transmission process of the two shock absorption pads, and the shock generated at the top of the upper shock absorption pad can be reduced finally. Meanwhile, the liquid oil for damping has the characteristic of small compressibility, and can generate an upward reaction force when the machine body vibrates, so that the supporting force of the upper damping pad uniformly acts on the bottom of the oil tank, and the amplitude of the oil tank is effectively reduced.

In one possible embodiment, a protrusion is provided above the upper cushion.

The contact area between the oil tank and the upper shock pad can be reduced by arranging the protrusion, when the oil tank acts on the upper shock pad, the pressure applied to the unit contact area of the upper shock pad is larger, the extrusion deformation generated by the upper shock pad is larger, and then larger reaction force is generated, so that a good shock absorption effect is achieved.

In one possible embodiment, the bottom of the lower shock pad is provided with a protrusion.

In the implementation process, the lower damping pad is arranged on the base body of the automobile, the protrusion arranged on the lower damping pad can reduce the contact area of the damping device and the base body, so that the pressure applied to the unit area of the damping device is large, large deformation is generated, the damping pad generates large reaction force, and a good damping effect is achieved.

In a possible implementation manner, the oil tank damping device further comprises a plurality of damping modules, and the damping modules are arranged on the lower damping pad and are uniformly distributed around the lower damping block.

In the implementation process, the shock absorption module is additionally provided with a layer of shock absorption module on the basis of the upper shock absorption pad and the lower shock absorption pad. The vibration can be uniformly transmitted due to the uniform distribution of the vibration absorption modules, and the vibration fluctuation of the whole oil tank tends to be consistent. Simultaneously, two-layer damper can reduce and play the effect that weakens and cushion shaking, and the effect of whole device can further strengthen.

In a possible embodiment, a screw hole is provided above the shock absorption module for connecting with the oil tank through a screw.

In the implementation process, the oil tank and the damping device are detachably connected, so that the oil tank is convenient to mount and maintain.

In a possible embodiment, the damping module is provided with a pin, and a pin hole is fixedly connected with the upper damping pad through the pin.

In the implementation process, the damping module and the lower damping pad are detachably connected, so that the damping device is convenient to detach and mount.

In a possible embodiment, the damping module is divided into an upper damping module and a lower damping module, the bottom of the upper damping module is provided with a protrusion, and the top of the lower damping module is a recess.

In the implementation process, the damping module is further divided into two layers of structures, the concave structure and the convex structure form a damping structure, vibration generated in the driving process of the automobile can be weakened in the process of being conducted to the oil tank, and the damping performance of the whole device is further improved.

In one possible embodiment, the upper shock absorbing module is peripherally and sealingly connected with the lower shock absorbing module; and liquid oil for damping is injected between the convex part and the concave part.

In the above implementation, the liquid for shock absorption has low compressibility, and the shock is transmitted to the liquid oil, which has incompressibility, so that an upward acting force is generated and supported around the oil tank, thereby effectively reducing the amplitude of the oil tank.

In a possible embodiment, the convex portion and the concave portion are spherical surfaces, the radius of the convex portion is larger than that of the concave portion, and a space layer is formed between the convex portion and the concave portion for injecting the liquid oil.

In the implementation process, when the machine body generates vibration and conducts to the damping module, the upper damping module extrudes downwards, because the periphery of the upper damping module and the periphery of the lower witness module are sealed, the radius of the protruding part is larger, the upper damping module and the part of the lower damping module in contact can have on-site friction resistance, and meanwhile, due to the incompressibility of the liquid oil inside, an upward reaction force is generated, the upper damping module supports around an oil tank and is matched with a damping pad at the bottom, so that the damping performance of the whole damping device is further improved.

The utility model provides an excavator can reduce rocking of oil tank, the life-span of extension oil tank and excavator, and the oil tank damping device who installs above-mentioned first aspect, the road conditions of excavator work is rugged and rugged relatively, and the oil tank often can rock, and the excavator that this application provided can reduce rocking of oil tank.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic view of an upper cushion and a lower cushion;

FIG. 2 is a schematic view of a shock absorbing module;

FIG. 3 is an assembly view of the upper cushion, the lower cushion and the cushion module.

Marking: 110-an upper cushion; 120-lower cushion; 200-a shock-absorbing module; 210-an upper shock absorbing module; 220-lower damping module; 300-liquid oil; 211-a projection; 221-a recess; 230-screw hole; 240-pin axis.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

The oil tank is the important part of loading petrol fuel in the car, and the security of oil tank is related to the safety and the traveling performance of whole car, for reducing the vibrations that produce and conduct the oil tank among the car operation process, must be for oil tank installation damping device, and current damping device adopts spring mode fixed mounting mostly, and this kind of mode cost is too high, and difficult dismantlement is difficult to the maintenance, consequently this application embodiment provides an oil tank damping device.

Referring to fig. 1, a shock-absorbing device provided in an embodiment of the present application includes an upper shock-absorbing pad 110 and a lower shock-absorbing pad 120; the peripheries of the upper shock absorbing pad 110 and the lower shock absorbing pad 120 are hermetically connected, and a space is left between the upper shock absorbing pad 110 and the lower shock absorbing pad 120, into which liquid oil 300 for shock absorption is injected.

The prior art generally adopts springs, so that the cost is high, the installation is complex, and materials of various shock absorbing cushions are low in cost compared with a spring shock absorbing mechanism, such as rubber. However, the simple rubber pad is not good in damping effect, in order to further improve the damping effect, the whole damping pad is divided into an upper layer mechanism and a lower layer mechanism, liquid oil is injected, the liquid oil has the characteristic of small compressibility, when the upper damping pad 110 is extruded, the upper damping pad 110 can further extrude the liquid oil 300, the liquid oil 300 can generate a reaction force due to the characteristic of small compressibility, the damping effect is improved, and the defect that the rigidity of the simple damping pad is not enough is overcome.

It should be noted that the liquid oil 300 may also be a liquid with low compressibility, and the liquid oil may be injected after the upper shock pad 110 and the lower shock pad 120 are mounted and connected in a closed manner, or before the upper shock pad and the lower shock pad are connected in a closed manner. Meanwhile, the area of the bottom surface of the upper shock pad 110 in fig. 1 is smaller than the area of the upper surface of the lower shock pad 120, which is to meet the design of the fuel tank, and the size relationship between the upper shock pad 110 and the lower shock pad 120 may be different according to different fuel tanks, and it still belongs to the protection scope of the present application to adapt to the fuel tank structure by changing the size relationship between the upper shock pad 110 and the lower shock pad 120 on the basis of the embodiment of the present application.

In a possible embodiment, in order to further improve the shock absorbing performance of the shock absorbing device, a circular protrusion may be provided on the top of the upper shock absorbing pad.

Circular bulge has glossy structure, under ideal circumstances, the area at the top of ball shape is a little, the partly and last shock pad contact of oil tank, can reduce the area of contact of shock pad and oil tank under this condition, the pressure of oil tank to damping device's unit area has been increased, when taking place vibrations, the deformation of going up the production that shock pad 110 produced can be bigger, the reaction force that further shock pad produced can be bigger, it is bigger to the holding power of oil tank, further the vibration range of oil tank can diminish, whole damping device's damping performance can promote.

In one possible embodiment, in order to further improve the shock-absorbing performance of the shock-absorbing device, a protrusion may be provided on the bottom of the lower shock-absorbing pad 120.

The whole damping device is installed in a mode of connection and buffering, the lower damping pad 120 is connected with the automobile, the smaller the contact area between the lower damping pad 120 and the automobile is, the larger the pressure applied to the unit volume of the lower damping pad 120 is, and when the vibration occurs, the larger the deformation of the lower damping pad 120 is, because the lower damping pad 120 is made of an elastic material, the larger the reaction generated is, and the higher the damping performance is.

It should be noted that, in other embodiments, besides the shape of the protrusion being a sphere, other shapes may be adopted, and on the basis of the embodiments of the present application, it is still within the spirit of the present invention to form different shock absorbing devices by changing the shape of the protrusion.

Referring to fig. 2, in order to further improve the damping performance of the entire damping device, in one possible embodiment, 4 damping modules 200 may be disposed on the lower damping pad 120 and uniformly distributed around the lower damping pad 120.

The damping module 200, the upper damping pad 110 and the lower damping pad 120 form a two-layer damping structure, and vibration is weakened at a joint when being conducted, so that the vibration amplitude of the oil tank is further reduced, and the performance of the whole damping device is improved. Simultaneously, the shock attenuation module 200 symmetry evenly distributed is around the shock pad down, and four corners of just laminating the car oil tank can balance the oil tank, and the amplitude of four angles can keep roughly the level when vibrations, and then the amplitude of oil tank reduces.

In a possible embodiment, in order to further increase the damping effect, a screw hole 230 may be provided on the damping module, and the oil tank and the damping module may be fixedly connected together by means of a screw.

The damping modules 200 serve as damping means on the one hand and as connecting means on the other hand, so that for the fixed connection of the tank to the vehicle, the fixing modules can be connected together by means of screws. The mode of utilizing the screw is favorable to dismantling and maintaining, especially to the car that the road conditions of going is generally comparatively rugged, and the vibrations that produce are great, or like excavator this kind of work vehicle, the duration of working is longer every day, needs frequent maintenance.

It should be noted that the use of screws is only one possible embodiment, and that other mounting means are possible on the basis of the embodiments of the present application, and for vehicles that do not require frequent inspection, other more robust mounting means such as welding, etc. may be used at the expense of detachability. The protection scope of this application still belongs to the mounting means of changing the oil tank on the basis of this application embodiment.

In one possible embodiment, in order to improve the stability of the entire damping device during installation, a pin 240 may be provided on the damping module, through which the pin acts as a connection to the lower damping pad 120.

As mentioned above, the shock absorbing module is used as a connecting device on one hand, and therefore needs to be connected with the shock absorbing device, the pin 240 can be used to firmly connect the shock absorbing module 200 with the lower shock absorbing pad 120, and the shock can be effectively absorbed, thereby further enhancing the shock absorbing performance and the connection strength of the whole shock absorbing device.

Referring to fig. 3, in one possible embodiment, in order to further enhance the cushioning function of the shock absorbing module, the shock absorbing module 200 may be further disassembled into an upper shock absorbing module 210 and a lower shock absorbing module 220, wherein a protrusion 211 is disposed below the upper shock absorbing module, and a recess and a protrusion 221 are disposed above the lower shock absorbing module.

The protrusion 211 and the recess 221 between the upper and lower shock absorbing modules 210 and 220 constitute a shock absorbing structure, and when shock is transmitted to the shock absorbing structure, the shock can be attenuated. Therefore, the performance of the whole damping device can be further improved.

Further, in a possible embodiment, liquid oil 300 for shock absorption may be injected in the middle of the recess.

As mentioned above, the liquid oil 300 has a small compressibility and generates a relatively large reaction force when being compressed, and the shock absorbing device may have insufficient rigidity if being made of an elastic material alone, and the liquid oil may compensate for the disadvantage. When a shock occurs, the liquid oil occupies the recess between the upper and lower shock absorbing modules 210 and 220, so the liquid oil 300 is further squeezed to generate a reaction force, thereby further reducing the shock amplitude of the oil tank.

Further, in order to prolong the life of the shock-absorbing module and increase the shock-absorbing performance of the whole shock-absorbing device, in one possible embodiment, the convex part 211 and the concave part 221 are spherical surfaces, the radius of the convex part 211 is larger than that of the concave part 221, and a space layer is formed between the convex part 211 and the concave part 221 for injecting the liquid oil 300.

The inner part of the lower layer is a concave spherical surface, the inner part of the upper layer is a convex spherical surface, the radius of the convex spherical surface is larger than that of the arc of the inner surface of the lower layer, the two layers are made of rubber, the peripheries of the upper layer and the lower layer are sealed, and liquid oil with small compressibility is injected in the layers. When the organism produced vibrations, the upper strata extrudees downwards, because convex spherical radius is great, and the part of upper and lower layer internal contact produces frictional resistance, because the incompressibility of inside liquid oil, produces ascending reaction force simultaneously, supports in the oil tank four corners, and the bradyseism pad of cooperation bottom has effectively reduced the oil tank amplitude. The radius of the convex part 211 is larger than that of the concave part 221, so that the convex part can contain more liquid oil 300 on one hand, and the elastic force generated by a part of vibration can be converted into friction force on the other hand, the service life of the damping module is prolonged, and the performance of the whole damping device is improved.

The working road condition of the excavator is generally rugged, so that the oil tank can be effectively vibrated and the service life of the whole excavator can be prolonged by installing the oil tank in the excavator in the above-mentioned manner.

It should be noted that, in the actual setting process, it is not necessary to set the convex portion 211 and the concave portion 221 as circular shapes, and how much the radius of the convex portion 211 is set to be larger than the radius of the concave portion 221 is not specifically limited in this application, and it still belongs to the protection scope of this application by changing the above two technical features on the basis of this application.

In conclusion, the application provides a damping device, installs between car and oil tank, and damping device includes shock pad 110 and lower shock pad 120, and in actual use, install damping device on the car, fix the oil tank in the top can again, go up shock pad 110 and lower shock pad 120 finished piece and annotate the liquid oil that compressibility is very little, can reduce and provide the reaction force when receiving the extrusion, increase whole damping device's cushioning effect. On this basis, can also increase shock attenuation module 200, promote damping device for two-layer structure, the inside two-layer structure that also sets up of shock attenuation module. The shock absorption module is connected with the oil tank and the lower shock absorption pad, and provides a shock absorption function and serves as a connecting device.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A tank damping device, comprising: an upper cushion (110) and a lower cushion (120);

the periphery of the upper shock pad (110) is hermetically connected with the periphery of the lower shock pad (120), and liquid oil (300) for shock absorption is injected between the upper shock pad (110) and the lower shock pad (120).

2. The tank shock absorbing device according to claim 1, wherein a protrusion is provided on a top of the upper shock absorbing pad (110).

3. The tank shock absorbing device according to claim 1, wherein a bottom of the lower shock absorbing pad (120) is provided with a protrusion.

4. The tank shock absorber device according to claim 1, further comprising a plurality of shock absorbing modules (200) disposed on the lower shock absorbing pad (120) and uniformly distributed around the lower shock absorbing pad (120).

5. The tank cushioning device according to claim 4, characterized in that, a screw hole (230) is provided above said cushioning module (200) for connecting with said tank by a screw.

6. The tank shock absorbing device according to claim 4, characterized in that the shock absorbing module (200) is provided with a pin (240) by means of which it is fixedly connected with the lower shock absorbing pad (120).

7. The tank damping device according to claim 4, characterized in that the damping module (200) is divided into an upper damping module (210) and a lower damping module (220), the upper damping module (210) is provided with a protrusion (211) at the bottom, and the lower damping module (220) is provided with a recess (221) at the top.

8. The tank shock absorbing device according to claim 7, wherein the upper shock absorbing module (210) and the lower shock absorbing module (220) are peripherally and sealingly connected; the convex part (211) and the concave part (221) are filled with liquid oil (300) for damping.

9. The tank damping device according to claim 7, characterized in that said protrusion (211) and said recess (221) are spherical, said protrusion having a radius greater than that of said recess, and a space layer is formed between said protrusion and said recess for injecting said liquid oil (300).

10. An excavator, characterized in that the tank damper device according to any one of claims 1 to 9 is installed.

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