Damping and buffering assembly and vehicle damping system

Abstract

The utility model relates to the technical field of automobile damping, in particular to a damping and buffering assembly and a vehicle damping system. The damping and buffering assembly is used for being connected with a damping oil cylinder, the damping oil cylinder comprises a cylinder body and a piston rod, the buffering assembly comprises a mounting base and a buffering body, and the mounting base is used for being connected with the end, away from the cylinder body, of the piston rod; the top of the buffer body is connected with the mounting seat and sleeves the periphery of the piston rod, the buffer body is an elastic element and has compressibility, and when the piston rod drives the mounting seat and the buffer body to move to the position of the cylinder body, the buffer body is compressed to buffer the impact of the piston rod on the cylinder body, so that the hard impact of the piston rod on the bottom of the cylinder body is eliminated; therefore, the discomfort of the driver caused by impact is avoided. Meanwhile, impact of the piston rod on the bottom of the cylinder body and the lining is relieved, the cylinder body can be protected, and the service life of the damping oil cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle shock absorption, in particular to a shock absorption and buffering component and a vehicle shock absorption system. Background Art

[0002] The shock absorption system of a vehicle is used to absorb shocks of the vehicle, and its performance will directly affect the handling and riding comfort of vehicle driving. Especially for mining vehicles, due to the uneven roads in mining areas, if the shock absorption effect of the shock absorption system of a mining vehicle is poor, the driver is prone to fatigue when driving the vehicle, which will directly affect driving safety.

[0003] At present, the shock absorption systems of mining vehicles can be divided into suspension cylinder shock absorption systems and rigid spring shock absorption systems. The rigid spring shock absorption system has a simple structure and good reliability, but its shock absorption effect is limited and the comfort is poor. The suspension cylinder shock absorption system has excellent shock absorption effect and good comfort, but its structure is relatively complex. When the piston rod of the suspension cylinder reaches the limit position, it will impact the bottom of the cylinder body, shortening the service life of the suspension cylinder and affecting the comfort of the whole vehicle. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the utility model provides a shock absorption and buffering component. The buffering component includes a buffer body, which is an elastic element. It is sleeved on the end of the piston rod far from the cylinder body through a mounting seat. When the piston rod moves to the limit position, the buffer body is compressed to relieve the impact of the piston rod on the cylinder body, thereby prolonging the service life of the oil cylinder and improving the comfort of the whole vehicle at the same time.

[0006] The utility model also provides a vehicle shock absorption system including the above shock absorption and buffering component.

[0007] A shock absorption and buffering component according to an embodiment of the first aspect of the utility model is used to be connected with a shock absorption oil cylinder. The shock absorption oil cylinder includes a cylinder body and a piston rod. The buffering component includes:

[0008] A mounting seat for connecting with the end of the piston rod far from the cylinder body;

[0009] A buffer body, the top of which is connected with the mounting seat and sleeved on the outer periphery of the piston rod. There is a clearance fit between the buffer body and the piston rod;

[0010] The buffer body is configured as an elastic element and has compressibility. When the piston rod drives the mounting seat and the buffer body to move to the position of the cylinder body, the buffer body is compressed to buffer the impact of the piston rod on the cylinder body.

[0011] Further, the buffer body is made of rubber material, and a shaft hole is provided in the center. The aperture of the shaft hole is larger than the outer diameter of the piston rod;

[0012] The buffer body is sleeved on the outer periphery of the piston rod through the shaft hole.

[0013] Furthermore, a plurality of annular grooves are provided on the outer periphery of the buffer body, and the plurality of annular grooves are arranged at intervals along the extending direction of the buffer body. The transition between adjacent annular grooves is smooth, so as to form a wavy shape in the axial direction on the outer periphery of the buffer body.

[0014] Furthermore, a fastening ring is sleeved on any one of the annular grooves, and the fastening ring is connected with the buffer body in an interference fit.

[0015] Furthermore, a plurality of upper exhaust holes are provided at the top of the buffer body. The plurality of upper exhaust holes are radially distributed on the outer periphery of the shaft hole and are respectively communicated with the shaft hole.

[0016] Furthermore, a lower exhaust hole is provided at the bottom of the buffer body. The lower exhaust hole is a water droplet-shaped groove and is coaxially arranged with the shaft hole.

[0017] Furthermore, snake skin patterns are provided on the surfaces of the shaft hole and the lower exhaust hole of the buffer body.

[0018] Furthermore, the top of the buffer body is clamped in the mounting seat.

[0019] Furthermore, a conical clamping groove is provided on the mounting seat. The buffer body is a cone, and the diameter of the top of the buffer body is set to be larger than the maximum diameter of the conical clamping groove, so that the top of the buffer body is clamped in the conical clamping groove.

[0020] A vehicle shock absorption system according to an embodiment of the second aspect of the present invention includes a shock absorption and buffering component in the first aspect or its various implementation manners.

[0021] At least one of the above technical solutions has the following advantages or beneficial effects:

[0022] For a shock absorption and buffering component according to an embodiment of the present invention, including a mounting seat and a buffer body, the mounting seat is connected to the top of the buffer body and is used to connect to the end of the piston rod away from the cylinder block. The buffer body is sleeved on the outer periphery of the piston rod, and the buffer body is configured as an elastic element and is suitable for being compressed. When the piston rod drives the mounting seat and the buffer body to move to the position of the cylinder block, the buffer body is gradually compressed, which can relieve the impact of the piston rod on the cylinder block, eliminate the hard impact of the piston rod on the bottom of the cylinder block, and avoid the discomfort brought to the driver by the impact. At the same time, it slows down the impact of the piston rod on the bottom of the cylinder block and the bushing, can protect the cylinder block, and thus extends the service life of the shock absorption oil cylinder.

[0023] The vehicle shock absorption system provided by the embodiment of the present invention is provided with the shock absorption and buffering component described above. Since the shock absorption and buffering component has the above technical effects, the vehicle shock absorption system provided with this shock absorption and buffering component should also have corresponding technical effects. Description of the Drawings

[0024] Figure 1 Shows a structural schematic diagram of a shock absorption and buffering assembly and a shock absorption oil cylinder according to an embodiment provided by the present utility model;

[0025] Figure 2 Shows a cross-sectional view of a shock absorption and buffering assembly and a shock absorption oil cylinder according to an embodiment provided by the present utility model;

[0026] Figure 3 Shows a cross-sectional view of a buffer body according to an embodiment provided by the present utility model;

[0027] Figure 4 Shows a top view of a buffer body according to an embodiment provided by the present utility model.

[0028]

Explanation of attached drawing reference numerals

[0029] 1. Mounting seat; 11. Conical card slot;

[0030] 2. Buffer body; 21. Axial hole; 22. Annular groove; 23. Upper exhaust hole; 24. Lower exhaust hole;

[0031] 3. Fastening ring; 4. Piston rod; 5. Cylinder block. Detailed implementation manners

[0032] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the attached drawings through specific implementation manners. The orientation nouns such as "top", "bottom", "inside" and "outside" mentioned herein are based on Figure 1 the orientation shown. The position of the mounting seat 1 relative to the buffer body 2 is defined as "top"; the position of the axial hole 21 relative to the buffer body 2 is defined as "inside".

[0033] As described above, the inventor found in the research on the shock absorption and buffering assembly and the vehicle shock absorption system that the use performance of the vehicle shock absorption system will directly affect the controllability and riding comfort of the vehicle. Especially for mining vehicles, which are mostly used in mining areas, due to the uneven road pits in the mining areas, the requirements for the shock absorption system are higher.

[0034] At present, the shock absorption systems of mining vehicles mostly adopt suspension shock absorption systems, which have good shock absorption effects and good comfort. However, at the limit position, the piston rod 4 will impact the bottom of the cylinder block 5, resulting in easy damage to the cylinder block 5, affecting the service life of the oil cylinder, and at the same time affecting the riding and driving comfort.

[0035] In order to solve at least one of the technical problems existing in the prior art or related technologies, the present utility model provides a shock absorption and buffering assembly and a vehicle shock absorption system. The following refers to Figures 1 to 4Describe a shock absorption and buffering component and a vehicle shock absorption system according to some embodiments provided by the present utility model.

[0036] Refer to Figure 1 and Figure 2 For a shock absorption and buffering component according to an embodiment provided by the present utility model, it is used to be connected to a shock absorption oil cylinder, and the shock absorption oil cylinder includes a cylinder block 5 and a piston rod 4. Among them, the shock absorption and buffering component is connected to the end of the piston rod 4 far from the cylinder block 5.

[0037] The buffering component specifically includes a mounting seat 1 and a buffer body 2. The mounting seat 1 is used to be connected to the end of the piston rod 4 far from the cylinder block 5. The top of the buffer body 2 is connected to the mounting seat 1 and is sleeved on the piston rod 4. The buffer body 2 and the outer periphery of the piston rod 4 are in clearance fit. The buffer body 2 is configured as an elastic element and has compressibility. When the piston rod 4 drives the mounting seat 1 and the buffer body 2 to move to the position of the cylinder block 5, the buffer body 2 is compressed to buffer the hard impact of the piston rod 4 on the cylinder block 5.

[0038] In the embodiments of the present disclosure, the buffer body 2 is configured as an elastic element, and the elastic element can be a spring, a corrugated pipe, or a device made of an elastic material with compressibility. During use, the buffer body 2 can be compressed, and the hard impact of the piston rod 4 on the cylinder block 5 can be slowed down during the compression process.

[0039] Therefore, the setting of the buffer body 2 in this embodiment can, on the one hand, reduce the impact of the piston rod 4 on the bottom and bushing of the cylinder block 5 to protect the cylinder block 5, and thus can extend the service life of the shock absorption oil cylinder. On the other hand, the setting of the buffer body 2 can avoid the discomfort brought to the driver by the hard impact, and thus can improve the controllability of the whole vehicle driving and the comfort of riding. Further, when the shock absorption function of the shock absorption oil cylinder fails, the buffer block can be used as a temporary shock absorption device to protect the shock absorption oil cylinder and the whole vehicle from damage caused by vibration, and thus win time for the repair of the shock absorption oil cylinder.

[0040] In an exemplary embodiment, the buffer body 2 is preferably made of a rubber material. Since the rubber material itself is an elastic material and has compressibility. When the piston rod 4 drives the mounting seat 1 and the buffer body 2 to move to the limit position, the buffer body 2 is compressed and deformed, and the deformation can slow down the impact of the piston rod 4 on the bottom of the cylinder block 5, thereby achieving the purpose of protecting the cylinder block 5.

[0041] It can be understood that the buffer body 2 made of a rubber material, due to its own elasticity, compared with the elastic elements of spring or corrugated pipe structures, its structure is relatively simple and no special design is required. While ensuring the use performance of the buffer body 2, the buffer body made of a rubber material reduces the manufacturing cost of the shock absorption and buffering component and is convenient for maintenance.

[0042] In this embodiment, as Figure 2 and Figure 3As shown, a shaft hole 21 is further provided in the buffer body 2. The shaft hole 21 penetrates along the extending direction of the buffer body 2, and the aperture of the shaft hole 21 is larger than the rod diameter of the piston rod 4. The buffer body 2 is connected to the outer periphery of the piston rod 4 with a clearance through the shaft hole 21. The clearance between the buffer body 2 and the piston rod 4 is provided for two purposes. On the one hand, it provides a compression space for the compression of the buffer body 2. On the other hand, it reduces the frictional resistance between the buffer body 2 and the piston rod 4 when the buffer body 2 is compressed, preventing the buffer body 2 from being ground and damaged.

[0043] Further, a plurality of annular grooves 22 are annularly arranged on the outer periphery of the buffer body 2. The plurality of annular grooves 22 are arranged at intervals along the extending direction of the buffer body 2, and the transition between adjacent annular grooves 22 is smooth, so that the outer periphery of the buffer body 2 forms a wavy shape in the axial direction. The wavy outer periphery makes the buffer body 2 have better shrinkability and is more convenient to compress, so that the impact force when the buffer block contacts the cylinder block 5 is softer, further improving the comfort.

[0044] In an exemplary embodiment, the number of the annular grooves 22 is 2, and the cross-sectional shape of the annular groove 22 is semi-circular. A fastening ring 3 is sleeved in any one of the annular grooves 22. The fastening ring 3 is tightly connected to the buffer body 2, and the fastening ring 3 is used to increase the structural strength of the buffer body 2.

[0045] It should be noted that the fastening ring 3 of this embodiment can be adjusted according to the required strength of the buffer body 2. A resin ring or a metal ring can be selected. This embodiment does not make specific limitations on it, and the user can select it according to specific usage requirements.

[0046] Further, as Figure 4 shown, a plurality of upper exhaust holes 23 are further provided at the top of the buffer body 2. The plurality of upper exhaust holes 23 are arranged in an array along the circumferential direction of the shaft hole 21 and are respectively communicated with the shaft hole 21. The plurality of upper exhaust holes 23 are radially distributed. The upper exhaust holes 23 extend from the shaft hole 21 towards the edge of the buffer body 2, and their cross-sectional shape is U-shaped.

[0047] A lower exhaust hole 24 is further provided at the bottom of the buffer body 2. The lower exhaust hole 24 is a water-drop-shaped groove, which is coaxially arranged with the shaft hole 21. The water-drop-shaped groove is concave towards the buffer body 2 from the shaft hole 21 and is smoothly transitioned with the buffer body 2.

[0048] When the buffer body 2 is compressed, the air is compressed at the same time. The compressed air will be discharged through the upper exhaust holes 23 and the lower exhaust holes 24 via the shaft hole 21. The upper exhaust holes 23 and the lower exhaust holes 24 act simultaneously, and the exhaust effect is better.

[0049] Further, snake skin patterns are provided on the surfaces of the shaft hole 21 and the lower exhaust hole 24. The snake skin patterns can increase the roughness of the inner surface of the buffer body 2, avoid adhesion between the buffer body 2 and the surface of the piston rod 4 when the buffer body 2 is compressed, and thus eliminate the frictional noise generated due to the adhesion effect.

[0050] In an exemplary embodiment, the connection mode between the buffer body 2 and the mounting seat 1 is snap connection. A tapered card slot 11 is provided on the mounting seat 1, and the diameter of the top of the tapered card slot 11 is larger than that of the bottom. The buffer body 2 correspondingly is a cone, the diameter of its top is larger than that of the bottom, and the diameter of the top of the cone is larger than the maximum diameter of the tapered card slot 11, so that the top of the buffer body 2 can be snap-connected into the inverted tapered card slot 11 and will not fall off.

[0051] Since the mounting seat 1 and the piston rod 4 are fixedly connected by welding or bolt connection, the mounting seat 1 is not easy to disassemble, while the buffer body 2 is a vulnerable part and needs to be frequently replaced. Therefore, in this embodiment, the snap connection mode between the buffer body 2 and the mounting seat 1 makes the buffer body 2 easy to disassemble and replace. When maintaining, there is no need to remove the mounting seat 1, and the buffer body 2 can be directly replaced, which is convenient and fast, and at the same time reduces the maintenance cost of the shock absorption and buffering assembly.

[0052] In another embodiment, the shock absorption and buffering assembly of the exemplary embodiment can be arranged in a vehicle. The vehicle can be a mining vehicle or a freight vehicle, etc.

[0053] Since the vehicle provided in this embodiment has the shock absorption and buffering assembly provided in any of the above embodiments, this vehicle has all the beneficial effects of the shock absorption and buffering assembly provided in any of the above embodiments, which will not be elaborated here.

[0054] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0055] In the present invention, unless otherwise clearly defined and limited, the terms "mounting", "connecting", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0057] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples", etc., mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A shock-absorbing and buffering assembly, used to be connected to a shock-absorbing oil cylinder, wherein the shock-absorbing oil cylinder comprises a cylinder body and a piston rod, characterized in that: The buffer assembly comprises: A mounting seat, used to be connected to the end of the piston rod away from the cylinder body; A buffer body, the top of which is connected to the mounting seat and is sleeved on the outer circumference of the piston rod, and there is a clearance fit between the buffer body and the piston rod; The buffer body is configured as an elastic element and is compressible. When the piston rod drives the mounting seat and the buffer body to move to the position of the cylinder body, the buffer body is compressed to buffer the impact of the piston rod on the cylinder body.

2. The shock absorbing and buffering assembly according to claim 1, characterized in that: The buffer body is made of rubber material, and is provided with an axial hole at the center, the diameter of the axial hole being larger than the outer diameter of the piston rod; The buffer body is sleeved on the outer periphery of the piston rod through the axial hole.

3. The shock absorbing and buffering assembly according to claim 2, characterized in that: The outer circumference of the buffer body is provided with a plurality of annular grooves, which are arranged at intervals along the extension direction of the buffer body, and adjacent annular grooves are smoothly transitioned to form a wave shape on the outer circumference of the buffer body in the axial direction.

4. The shock absorbing and buffering assembly according to claim 3, characterized in that: A fastening ring is also sleeved on any of the annular grooves, and the fastening ring is tightly fitted to the buffer body.

5. The shock absorbing and buffering assembly according to claim 2, characterized in that: The top of the buffer body is also provided with a plurality of upper exhaust holes, which are radially distributed on the outer periphery of the shaft hole and are respectively connected with the shaft hole.

6. The shock absorbing and buffering assembly according to claim 2, characterized in that: The lower part of the buffer body is also provided with a lower exhaust hole, which is a water drop-shaped groove and is coaxially arranged with the shaft hole.

7. The shock absorbing and buffering assembly according to claim 6, characterized in that: The surfaces of the shaft hole and the lower exhaust hole of the buffer body are both provided with snake skin patterns.

8. The shock absorbing and buffering assembly according to claim 3, characterized in that: The top of the buffer body is clamped in the mounting seat.

9. The shock absorbing and buffering assembly according to claim 8, characterized in that: The mounting seat is provided with a conical slot, the buffer body is a cone, and the top diameter of the buffer body is larger than the maximum diameter of the conical slot, so that the top of the buffer body is clamped in the conical slot.

10. A vehicle shock absorption system, characterized in that: The shock absorbing and buffering assembly comprises the shock absorbing and buffering assembly according to any one of claims 1 to 9.

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