Multi-stage damping device, multi-stage damping assembly and high-pressure filter assembly

Abstract

The utility model discloses a multi-stage damping device, a multi-stage damping assembly and a high-pressure filter assembly. The multi-stage damping device comprises a shell, an end cover, a third-stage damping structure, a lower buffer plate, an upper buffer plate, a second-stage damping structure and a first-stage damping structure, the end cover is assembled on the top opening surface of the shell, and a through hole I is formed in the end cover; the third-stage damping structure is mounted at the bottom of the cavity; the lower buffer plate is arranged on the top surface of the third-stage damping structure; the upper buffer plate is positioned in the cavity above the lower buffer plate; the second-stage damping structure is arranged in a cavity located below the upper buffer plate, under the elastic action of the second-stage damping structure, the bottom of the second-stage damping structure penetrates through the lower buffer plate and then penetrates into the third-stage damping structure, the top of the second-stage damping structure makes contact with the upper buffer plate, and the upper buffer plate abuts against the end cover. The first-stage damping structure is mounted on the upper buffer plate at the through hole I; the multi-stage damping device is simple in structure, high in adaptability, reliable and stable, provides a three-stage buffering damping structure and can adapt to most of working conditions.

Description

Technical Field

[0001] The utility model relates to a multi-stage shock absorbing device, belonging to the technical field of shock absorbing. Background Art

[0002] The hydraulic system of heavy mining trucks is equipped with a high-pressure filter, which is used to filter impurities and particulate matter in the hydraulic oil circuit. The high-pressure filter in the prior art is rigidly connected to the fuel tank. The road surface in the mining area where the heavy mining truck is located is uneven, and the vehicle is severely bumpy during transportation. The fuel tank shakes during this process, causing the high-pressure filter to vibrate, causing the high-pressure filter mounting seat connected to the fuel tank to vibrate greatly, and cracking occurs at the connection between the fuel tank and the high-pressure filter. Summary of the invention

[0003] The utility model provides a multi-stage shock absorbing device, which has the advantages of simple structure, strong applicability and durability.

[0004] The utility model is implemented according to the following technical solutions:

[0005] In a first aspect, the utility model provides a multi-stage shock absorbing device, comprising:

[0006] A rigid shell having a hollow cavity;

[0007] A rigid end cover is mounted on the top opening surface of the shell, and the end cover is provided with a through hole I;

[0008] A third-level shock-absorbing structure is installed at the bottom of the cavity;

[0009] A lower buffer plate, arranged on the top surface of the third-level shock absorbing structure;

[0010] An upper buffer plate, located in the cavity above the lower buffer plate;

[0011] The second-stage shock-absorbing structure is arranged in the cavity below the upper buffer plate. Under the elastic force of the second-stage shock-absorbing structure, the bottom of the second-stage shock-absorbing structure passes through the lower buffer plate and then enters the third-stage shock-absorbing structure, and the top contacts the upper buffer plate and places the upper buffer plate on the end cover.

[0012] The first-stage shock-absorbing structure is mounted on the upper buffer plate at the through hole I;

[0013] First, the first-stage shock-absorbing structure bears the external impact force to perform shock absorption and buffering. As the external impact force increases, the first and second-stage shock-absorbing structures simultaneously perform shock absorption and buffering. When the external impact force further increases, the first, second, and third-stage shock-absorbing structures simultaneously perform shock absorption and buffering.

[0014] In some embodiments, the third-stage shock absorbing structure is a cross spring sheet; the top surface of the cross spring sheet is provided with a large circular hole coaxially arranged with the through hole I, for the second-stage shock absorbing structure and the fasteners used to assemble the multi-stage shock absorbing device to pass through; the bottom surface of the cross spring sheet is provided with a small circular hole coaxially arranged with the large circular hole, and the small circular hole can limit the passage of the second-stage shock absorbing structure, but does not limit the passage of the fasteners used to assemble the multi-stage shock absorbing device.

[0015] In some embodiments, the upper buffer plate is provided with a through hole II coaxially arranged with the through hole I, for assembling fasteners of the multi-stage shock absorbing device to pass through; the top surface of the upper buffer plate is provided with a flange structure I around the through hole II, the outer diameter of the flange structure I is slightly smaller than the inner diameter of the through hole II, and the top and bottom surfaces of the upper buffer plate are provided with flange structures II around the through hole II, and a stepped hole is formed between the flange structure I, the through hole II and the flange structure II; the top end of the second-stage shock absorbing structure is in contact with the step surface in the flange structure II, and the first-stage shock absorbing structure is located on the step surface in the flange structure I.

[0016] In some embodiments, the second-stage shock absorbing structure is a shock absorbing spring, and the fasteners for assembling the multi-stage shock absorbing device pass through the shock absorbing spring; the lower buffer plate is provided with a through hole III coaxially arranged with the through hole I, for the shock absorbing spring and the fasteners for assembling the multi-stage shock absorbing device to pass through.

[0017] In some embodiments, the first-stage shock absorbing structure is a rubber shock absorbing block, and the rubber shock absorbing block is provided with a through hole IV coaxially arranged with the through hole I, for fasteners for assembling the multi-stage shock absorbing device to pass through.

[0018] In some embodiments, a through hole V is provided on the bottom surface of the shell and is coaxially arranged with the through hole I, for fasteners for assembling the multi-stage shock absorbing device to pass through.

[0019] In some embodiments, at least one elongated boss is provided on the inner side wall of the shell and extends vertically upward from the bottom surface of the shell to the top edge of the shell. On the one hand, the elongated boss is used to limit the third-level shock absorbing structure, and on the other hand, it cooperates with the grooves on the upper buffer plate and the lower buffer plate to play a role of sliding guide.

[0020] In some embodiments, the outer wall of the shell is provided with a plurality of spaced-apart protrusions I with threaded holes near the top edge, and the outer wall of the end cover is provided with a plurality of protrusions II corresponding one-to-one to the protrusions I and with through holes, and the end cover is fixed to the shell by screws cooperating with the protrusions I and II.

[0021] In a second aspect, the utility model also provides a multi-stage shock absorbing assembly, comprising:

[0022] The above-mentioned multi-stage shock absorbing device;

[0023] A first mounting member is fixed to the rigid fixing member;

[0024] A second mounting component connected to the pre-shock absorbing component is arranged above the first mounting component, the multi-stage shock absorbing device is arranged between the first and second mounting components, the bottom surface of the shell of the multi-stage shock absorbing device contacts the first mounting component, and the top surface of the first-stage shock absorbing structure of the multi-stage shock absorbing device contacts the second mounting component;

[0025] A fastener is used to fix the multi-stage shock absorbing device, the first mounting component and the second mounting component together.

[0026] In the third aspect, the utility model provides a high-pressure filter assembly, which is equipped with the above-mentioned multi-stage shock absorbing assembly; the rigid fixed component is a fuel tank, and the pre-shock absorbing component is a high-pressure filter; the first mounting component is a filter assembly mounting seat, which is welded to the fuel tank; the second mounting component is a high-pressure filter fixing plate, and the high-pressure filter is mounted on the high-pressure filter fixing plate by screws; the fasteners are long bolts and nuts, and the long bolts pass through the high-pressure filter fixing plate, the multi-stage shock absorbing device and the filter assembly mounting seat and are fastened by nuts.

[0027] Beneficial effects of the utility model:

[0028] The multi-stage shock-absorbing device has a simple structure, strong adaptability, reliability and stability, and provides a three-stage buffer shock-absorbing structure that can adapt to most working conditions;

[0029] The multi-stage shock-absorbing device can effectively absorb the impact caused by the mine car running on bumpy roads, effectively reduce the high-frequency vibration of the high-pressure filter, and reduce the risk of deformation and cracking at the connection between the filter assembly mounting seat and the fuel tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0031] In the attached picture:

[0032] Figure 1 This is a schematic diagram of the appearance of the multi-stage shock absorbing device of the utility model;

[0033] Figure 2 This is a cross-sectional view of the multi-stage shock absorbing device of the utility model;

[0034] Figure 3 It is an axonometric drawing of the housing of the utility model;

[0035] Figure 4 It is an axonometric view of the cross spring of the utility model;

[0036] Figure 5 This is an axonometric view of the lower buffer plate of the utility model;

[0037] Figure 6 This is an exploded view of the multi-stage shock absorbing assembly of the utility model;

[0038] Figure 7 This is an axonometric view of the high-pressure filter assembly of the utility model.

[0039] Figure symbols: 1 fuel tank; 2 high pressure filter; 3 screw; 4 high pressure filter fixing plate; 5 long bolt; 6 upper gasket; 7 multi-stage shock absorbing device; 7.1 rubber shock absorbing block; 7.2 screw; 7.3 end cover; 7.4 upper buffer plate; 7.5 lower buffer plate; 7.6 shock absorbing spring; 7.7 cross spring leaf; 7.8 housing; 8 filter assembly mounting seat; 9 lower gasket; 10 nut.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figure 1 , Figure 2 As shown, a multi-stage shock absorbing device comprises a rigid shell 7.8, a rigid end cover 7.3, a third-stage shock absorbing structure, a lower buffer plate 7.5, an upper buffer plate 7.4, a second-stage shock absorbing structure and a first-stage shock absorbing structure; the rigid shell 7.8 has a hollow cavity; the rigid end cover 7.3 is assembled on the top opening surface of the shell 7.8, and a through hole I is arranged on the end cover 7.3; the third-stage shock absorbing structure is installed at the bottom of the cavity; the lower buffer plate 7.5 is arranged on the top surface of the third-stage shock absorbing structure; the upper buffer plate 7.4 is located in the cavity above the lower buffer plate 7.5; the second-stage shock absorbing structure is arranged at the position In the cavity below the upper buffer plate 7.4, under the elastic force of the second-stage shock-absorbing structure, its bottom passes through the lower buffer plate 7.5 and then penetrates into the third-stage shock-absorbing structure, and the top contacts the upper buffer plate 7.4, and the upper buffer plate 7.4 is placed on the end cover 7.3; the first-stage shock-absorbing structure is installed on the upper buffer plate 7.4 at the through hole I; first, the first-stage shock-absorbing structure first bears the external impact force for shock absorption and buffering, and as the external impact force increases, the first and second shock-absorbing structures simultaneously perform shock absorption and buffering, and when the external impact force further increases, the first, second, and third shock-absorbing structures simultaneously perform shock absorption and buffering. The three-stage shock-absorbing structure can adapt to the buffering vibration under most working conditions and has the characteristics of strong applicability.

[0045] The third-level shock-absorbing structure mentioned above is further described below.

[0046] like Figure 2 , Figure 4 As shown, the third-stage shock absorbing structure is a cross spring sheet 7.7; the top surface of the cross spring sheet 7.7 is provided with a large circular hole coaxially arranged with the through hole I, for the second-stage shock absorbing structure and the fasteners for assembling the multi-stage shock absorbing device to pass through; the bottom surface of the cross spring sheet 7.7 is provided with a small circular hole coaxially arranged with the large circular hole, and the small circular hole can limit the passage of the second-stage shock absorbing structure, but does not limit the passage of the fasteners for assembling the multi-stage shock absorbing device.

[0047] The upper buffer plate mentioned above is further described below.

[0048] like Figure 2As shown, the upper buffer plate 7.4 is provided with a through hole II coaxially arranged with the through hole I, for fasteners for assembling the multi-stage shock absorbing device to pass through; the top surface of the upper buffer plate 7.4 is provided with a flange structure I around the through hole II, the outer diameter of the flange structure I is slightly smaller than the inner diameter of the through hole II, and the top and bottom surfaces of the upper buffer plate 7.4 are provided with flange structures II around the through hole II, and a stepped hole is formed between the flange structure I, the through hole II and the flange structure II; the top end of the second-stage shock absorbing structure is in contact with the step surface in the flange structure II, and the first-stage shock absorbing structure is located on the step surface in the flange structure I.

[0049] The second-stage shock absorbing structure and the first-stage shock absorbing structure are further described below.

[0050] like Figure 2 , Figure 5 As shown, the second-stage shock absorbing structure is a shock absorbing spring 7.6, and the fasteners for assembling the multi-stage shock absorbing device pass through the shock absorbing spring 7.6; the lower buffer plate 7.5 is provided with a through hole III coaxially arranged with the through hole I, for the shock absorbing spring 7.6 and the fasteners for assembling the multi-stage shock absorbing device to pass through. The first-stage shock absorbing structure is a rubber shock absorbing block 7.1, and the rubber shock absorbing block 7.1 is provided with a through hole IV coaxially arranged with the through hole I, for the fasteners for assembling the multi-stage shock absorbing device to pass through.

[0051] The following is a further description of the above-mentioned shell and end cover seat.

[0052] like Figure 1 , Figure 2 , Figure 3 As shown, the bottom surface of the housing 7.8 is provided with a through hole V coaxially arranged with the through hole I, through which fasteners for assembling the multi-stage damping device pass. The outer wall of the housing 7.8 is provided with a plurality of spaced protrusions I with threaded holes near the top edge, and the outer wall of the end cover 7.3 is provided with a plurality of protrusions II corresponding to the protrusions I and having through holes, and the end cover 7.3 is fixed to the housing 7.8 by screws 3 cooperating with the protrusions I and II.

[0053] Further solutions: Figure 3 As shown, at least one elongated boss extending vertically upward from the bottom surface of the shell 7.8 to the top edge of the shell 7.8 is provided on the inner side wall of the shell 7.8. The elongated boss is used to limit the cross spring sheet 7.7 on the one hand, and cooperates with the grooves on the upper buffer plate 7.4 and the lower buffer plate 7.5 on the other hand to play a role of sliding guide.

[0054] From the above, we can see that the working principle of the multi-stage shock absorption device is as follows:

[0055] When the impact vibration is small, the shock absorbing spring 7.6 and the cross spring sheet 7.7 are not in a compressed state, and the rubber shock absorbing block 7.1 of the first-stage shock absorbing structure bears the impact vibration; when the impact vibration is normal, the second-stage shock absorbing structure composed of the shock absorbing spring 7.6 and the upper buffer plate 7.4 works, and the shock absorbing spring 7.6 further absorbs the impact vibration; when the impact vibration is large, the deformation of the shock absorbing spring 7.6 continues to increase, the upper buffer plate continues to move downward and contacts the lower buffer plate 7.5, and the cross spring sheet 7.7 and the lower buffer plate form the third-stage shock absorbing structure to bear large impact vibration. The three-stage shock absorbing structure can adapt to the buffering vibration under most working conditions and has the characteristics of strong applicability.

[0056] like Figure 6 As shown, the utility model also provides a multi-stage shock absorbing assembly, including the above-mentioned multi-stage shock absorbing device 7, a first mounting component, a second mounting component connected to the pre-shock absorbing component and a fastener; the first mounting component is fixed on a rigid fixing component; the second mounting component is arranged above the first mounting component, and the multi-stage shock absorbing device 7 is arranged between the first and second mounting components, the bottom surface of the shell 7.8 of the multi-stage shock absorbing device 7 is in contact with the first mounting component, and the top surface of the rubber shock absorbing block 7.1 of the multi-stage shock absorbing device 7 is in contact with the second mounting component; the fastener is used to fix the multi-stage shock absorbing device 7, the first mounting component and the second mounting component together.

[0057] like Figure 7 As shown, the utility model also provides a high-pressure filter assembly, which is equipped with the above-mentioned multi-stage shock absorbing assembly; the rigid fixing component is the fuel tank 1, and the pre-shock absorbing component is the high-pressure filter 2; the first mounting component is the filter assembly mounting seat 8, which is welded on the fuel tank 1; the second mounting component is the high-pressure filter fixing plate 4, and the high-pressure filter 2 is mounted on the high-pressure filter fixing plate 4 by screws 3; the fasteners are long bolts 5, upper gaskets 6, lower gaskets 9, and nuts 10. The long bolts 5 penetrate the upper gaskets 6, the high-pressure filter fixing plate 4, the multi-stage shock absorbing device 7, the filter assembly mounting seat 8 and the lower gasket 9 and are fastened by nuts 10. The multi-stage shock absorbing device can effectively absorb the impact caused by the internal and external shaking of the fuel tank and the high-pressure filter during the driving of the mine car, avoid high-frequency vibrations, and effectively solve the deformation and cracking of the connection between the fuel tank and the filter assembly mounting seat.

[0058] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0059] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0060] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A multi-stage shock absorbing device, characterized in that: include: A rigid shell having a hollow cavity; A rigid end cover is mounted on the top opening surface of the shell, and the end cover is provided with a through hole I; A third-level shock-absorbing structure is installed at the bottom of the cavity; A lower buffer plate, arranged on the top surface of the third-level shock absorbing structure; An upper buffer plate, located in the cavity above the lower buffer plate; The second-stage shock-absorbing structure is arranged in the cavity below the upper buffer plate. Under the elastic force of the second-stage shock-absorbing structure, the bottom of the second-stage shock-absorbing structure passes through the lower buffer plate and then enters the third-stage shock-absorbing structure, and the top contacts the upper buffer plate and places the upper buffer plate on the end cover. The first-stage shock-absorbing structure is mounted on the upper buffer plate at the through hole I; First, the first-stage shock-absorbing structure bears the external impact force to perform shock absorption and buffering. As the external impact force increases, the first and second-stage shock-absorbing structures simultaneously perform shock absorption and buffering. When the external impact force further increases, the first, second, and third-stage shock-absorbing structures simultaneously perform shock absorption and buffering.

2. A multi-stage shock absorbing device according to claim 1, characterized in that: The third-level shock-absorbing structure is a cross spring leaf; The top surface of the cross spring sheet is provided with a large circular hole coaxially arranged with the through hole I, for the second-stage shock absorbing structure and the fasteners for assembling the multi-stage shock absorbing device to pass through; A small circular hole coaxially arranged with the large circular hole is provided on the bottom surface of the cross spring sheet. The small circular hole can limit the passage of the second-stage shock absorbing structure, but does not limit the passage of fasteners used to assemble the multi-stage shock absorbing device.

3. A multi-stage shock absorbing device according to claim 1, characterized in that: The upper buffer plate is provided with a through hole II coaxially arranged with the through hole I, for the fasteners for assembling the multi-stage shock absorbing device to pass through; The top surface of the upper buffer plate is provided with a flange structure I around the through hole II, the outer diameter of the flange structure I is slightly smaller than the inner diameter of the through hole II, the top and bottom surfaces of the upper buffer plate are provided with flange structures II around the through hole II, and a stepped hole is formed between the flange structure I, the through hole II and the flange structure II; The top end of the second-stage shock-absorbing structure contacts the step surface in the flange structure II, and the first-stage shock-absorbing structure is located on the step surface in the flange structure I.

4. A multi-stage shock absorbing device according to claim 1, characterized in that: The second-stage shock absorbing structure is a shock absorbing spring, and the fastener used for assembling the multi-stage shock absorbing device passes through the shock absorbing spring; The lower buffer plate is provided with a through hole III coaxially arranged with the through hole I, for the damping spring and the fasteners for assembling the multi-stage damping device to pass through.

5. The multi-stage shock absorbing device according to claim 1, characterized in that: The first-stage shock-absorbing structure is a rubber shock-absorbing block, on which a through hole IV is provided, which is coaxially arranged with the through hole I and is used for fasteners for assembling the multi-stage shock-absorbing device to pass through.

6. A multi-stage shock absorbing device according to claim 1, characterized in that: A through hole V is provided on the bottom surface of the shell and is coaxially arranged with the through hole I, through which fasteners for assembling the multi-stage shock absorbing device pass.

7. The multi-stage shock absorbing device according to claim 1, characterized in that: The inner wall of the shell is provided with at least one elongated boss extending vertically upward from the bottom surface of the shell to the top edge of the shell. On the one hand, the elongated boss is used to limit the third-stage shock absorbing structure, and on the other hand, it cooperates with the grooves on the upper buffer plate and the lower buffer plate to play a role of sliding guide.

8. The multi-stage shock absorbing device according to claim 1, characterized in that: The outer wall of the shell is provided with a plurality of spaced protrusions I with threaded holes near the top edge, and the outer wall of the end cover is provided with a plurality of protrusions II corresponding to the protrusions I one by one and with through holes, and the end cover is fixed to the shell by screws cooperating with the protrusions I and II.

9. A multi-stage shock absorbing assembly, characterized in that: include: The multi-stage shock absorbing device according to any one of claims 1 to 8; A first mounting member is fixed to the rigid fixing member; A second mounting component connected to the pre-shock absorbing component is arranged above the first mounting component, the multi-stage shock absorbing device is arranged between the first and second mounting components, the bottom surface of the shell of the multi-stage shock absorbing device contacts the first mounting component, and the top surface of the first-stage shock absorbing structure of the multi-stage shock absorbing device contacts the second mounting component; A fastener is used to fix the multi-stage shock absorbing device, the first mounting component and the second mounting component together.

10. A high pressure filter assembly, characterized in that: A multi-stage shock absorbing assembly as claimed in claim 9 is installed; The rigid fixing component is a fuel tank, and the pre-shock absorbing component is a high-pressure filter; The first mounting component is a filter assembly mounting seat, which is welded on the fuel tank; The second mounting component is a high-pressure filter fixing plate, and the high-pressure filter is mounted on the high-pressure filter fixing plate by screws; The fasteners are long bolts and nuts. The long bolts penetrate the high-pressure filter fixing plate, the multi-stage shock absorbing device and the filter assembly mounting seat and are fastened by nuts.

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