Automobile chassis rubber damping structure
By combining a multi-layered composite rubber structure and a buffer device, the problems of resonance under high-frequency vibration and complexity of existing automotive chassis shock absorbers are solved, achieving effective buffering of high-frequency and low-frequency vibrations and improving shock absorption performance and ride comfort.
Patent Information
- Application Number
- CN202423232127.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing automotive chassis shock absorbers are prone to resonance under high-frequency vibrations, which greatly reduces their shock absorption effect. Hydraulic shock absorbers have complex structures and high costs, and require regular maintenance. Their shock absorption performance drops sharply after oil leaks.
It adopts a multi-layer composite rubber structure, including a lower layer of rubber with higher hardness and an upper layer of rubber with lower hardness. Combined with sound-absorbing cotton and a buffer device, it buffers vibrations of different frequencies by utilizing the differences in the properties of the rubber layers, and provides stable support and buffering by using a combination of buffer rods and springs.
It effectively improves the buffering effect of high-frequency and low-frequency vibrations, enhances the shock absorption performance and ride comfort of the car chassis, and reduces the complexity of the device and maintenance requirements.
Smart Images
Figure CN223648433U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automobile parts technical field especially, relates to a rubber shock absorbing structure of automobile chassis. BACKGROUND
[0002] With the rapid development of the automobile industry, the requirement of the consumer for the automobile driving comfort is increasingly improved, the chassis is inevitably subjected to various bumps, vibration from the road and the impact produced by the operation of the vehicle parts, such as the vibration of the engine, during the driving process, therefore, a rubber shock absorbing structure of automobile chassis is particularly needed.
[0003] But the existing shock absorbing device, the spring shock absorber is easy to produce resonance under high frequency vibration, the shock absorbing effect is greatly discounted, the hydraulic shock absorber structure is complex, the cost is higher, and needs regular maintenance, once the oil leakage and other faults appear, the shock absorbing performance will sharply drop. UTILITY MODEL CONTENTS
[0004] The utility model discloses a rubber shock absorbing structure of automobile chassis to solve the problem that the existing shock absorbing device is easy to produce resonance under high frequency vibration, the shock absorbing effect is greatly discounted, the hydraulic shock absorber structure is complex, the cost is higher, and needs regular maintenance, once the oil leakage and other faults appear, the shock absorbing performance will sharply drop.
[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a rubber shock absorbing structure of automobile chassis, including fixed link, the inner side surface rotation of fixed link is connected with the pivot, one end surface of pivot is fixedly connected with the wheel, the upper surface of fixed link is provided with stabilizing mechanism, the upper surface of stabilizing mechanism is connected with base frame, one side surface of base frame is fixedly connected with the connecting fixed plate, the upper surface of fixed link is provided with shock absorbing mechanism;Shock absorbing mechanism includes shock absorbing device and buffer device, buffer device guides shock absorbing device, and shock absorbing device is assisted to shock absorbing.
[0006] Preferably, the shock absorbing device includes a lower connecting block, a rubber groove, a rubber pad, a lower layer of rubber, an upper layer of rubber, a cavity, sound-absorbing cotton and an upper connecting block, the upper surface of the fixed link is bolted with the lower connecting block, the upper surface of the lower connecting block is provided with a rubber groove, the inner side surface of the rubber groove is fixedly connected with the rubber pad, the upper surface of the rubber pad is fixedly connected with the lower layer of rubber, the upper surface of the lower layer of rubber is fixedly connected with the upper layer of rubber, the inner side surface of the upper layer of rubber is provided with a cavity, the inner side surface of the cavity is fixedly connected with the sound-absorbing cotton, the upper surface of the upper layer of rubber is fixedly connected with the upper connecting block, the inner side surface of the lower layer of rubber is also provided with a cavity, and the upper connecting block is bolted with the connecting fixed plate.
[0007] Preferably, the inner side of the rubber groove is in line with the outer side of the lower rubber, and the lower connecting block and the lower rubber are provided with a plurality of mounting holes at the four corners.
[0008] Preferably, the buffer device comprises a buffer rod, a sliding groove, a sliding block, a connecting rod and a second spring, the upper surface of the lower connecting block is fixedly connected with the buffer rod, the inner surface of the buffer rod is provided with the sliding groove, the inner surface of the sliding groove is slidably connected with the sliding block, one end surface of the sliding block is fixedly connected with the connecting rod, the upper surface of the lower connecting block is fixedly connected with the second spring, the second spring surrounds the outer surface of the buffer rod, the other end of the second spring is fixedly connected with the upper connecting block, and the other end of the connecting rod is fixedly connected with the upper connecting block.
[0009] Preferably, the inner side of the sliding groove is in line with the outer side of the sliding block, and the buffer rod is provided with a plurality of groups on the upper surface of the lower connecting block.
[0010] Preferably, the stabilizing mechanism comprises a lower fixed block, a first protection cylinder, a second protection cylinder, an upper fixed block, a stabilizing block, a shock absorber and a first spring, the upper surface of the fixed rod is bolted with the lower fixed block, the upper surface of the lower fixed block is fixedly connected with the first protection cylinder, the inner surface of the first protection cylinder is slidably connected with the second protection cylinder, the upper surface of the second protection cylinder is fixedly connected with the upper fixed block, the lower surface of the upper fixed block is fixedly connected with the stabilizing block, the lower surface of the stabilizing block is fixedly connected with the shock absorber, the lower surface of the stabilizing block is fixedly connected with the first spring, the upper surface of the lower fixed block is fixedly connected with another group of the stabilizing block, the other end of the shock absorber is fixedly connected with another group of the stabilizing block, and the upper fixed block is bolted with the base frame.
[0011] Preferably, the inner side of the first protection cylinder is in line with the outer side of the second protection cylinder, and the lower fixed block and the upper fixed block are provided with a plurality of mounting holes at the four corners.
[0012] Compared with the prior art, the automobile chassis rubber damping structure has the advantages that: the upper layer rubber is a soft rubber layer with relatively low hardness, which is used for preliminarily buffering high-frequency small-amplitude vibration; the lower layer rubber is a hard rubber layer with high hardness, which can bear large pressure, effectively support the chassis weight and buffer low-frequency large-amplitude vibration; the central part is provided with a vertically penetrating cylindrical cavity, the cavity is filled with sound-absorbing cotton to absorb noise generated by vibration; through the multilayer composite rubber structure design of the lower layer rubber and the upper layer rubber and the characteristics of different hardness rubber layers, high-frequency and low-frequency vibration encountered by the automobile chassis during driving can be effectively buffered in a targeted manner, the comprehensiveness of the damping effect is improved, the damping performance of the automobile chassis is effectively improved, and the driving comfort and vehicle reliability are improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a side view appearance structure schematic diagram of the utility model;
[0014] Figure 2 It is a rotating shaft and fixed rod mutual cooperation structure schematic diagram of the utility model;
[0015] Figure 3 It is a stable mechanism sectional structure schematic diagram of the utility model;
[0016] Figure 4 It is a damping mechanism sectional structure schematic diagram of the utility model;
[0017] Figure 5 It is a cavity and sound-absorbing cotton mutual cooperation structure schematic diagram of the utility model.
[0018] In the drawing: 1, fixed rod; 2, rotating shaft; 3, wheel; 4, stable mechanism; 401, lower fixed block; 402, first protection cylinder; 403, second protection cylinder; 404, upper fixed block; 405, stable block; 406, shock absorber; 407, first spring; 5, base frame; 6, connecting fixed plate; 7, damping mechanism; 701, lower connecting block; 702, rubber groove; 703, rubber pad; 704, lower layer rubber; 705, upper layer rubber; 706, cavity; 707, sound-absorbing cotton; 708, upper connecting block; 709, buffer rod; 710, sliding groove; 711, sliding block; 712, connecting rod; 713, second spring. DETAILED DESCRIPTION
[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the protection scope of the present application.
[0020] Please refer to Figures 1-5 The utility model provides a technical scheme: a kind of automobile chassis rubber damping structure, the inner side surface of fixed rod 1 is rotatably connected with rotating shaft 2, the surface of one end of rotating shaft 2 is fixedly connected with wheel 3, the upper surface of fixed rod 1 is provided with stabilizing mechanism 4, the upper surface of stabilizing mechanism 4 is connected with base frame 5, the side surface of base frame 5 is fixedly connected with connecting fixed plate 6, the upper surface of fixed rod 1 is provided with damping mechanism 7, and damping mechanism 7 includes damping device and buffer device.
[0021] In the embodiment, damping device includes lower connecting block 701, rubber groove 702, rubber pad 703, lower layer rubber 704, upper layer rubber 705, cavity 706, sound-absorbing cotton 707 and upper connecting block 708, the upper surface of fixed rod 1 is bolted with lower connecting block 701, the upper surface of lower connecting block 701 is provided with rubber groove 702, the inner side surface of rubber groove 702 is fixedly connected with rubber pad 703, the upper surface of rubber pad 703 is fixedly connected with lower layer rubber 704, the upper surface of lower layer rubber 704 is fixedly connected with upper layer rubber 705, the inner side surface of upper layer rubber 705 is provided with cavity 706, the inner side surface of cavity 706 is fixedly connected with sound-absorbing cotton 707, the upper surface of upper layer rubber 705 is fixedly connected with upper connecting block 708, the inner side surface of lower layer rubber 704 is also provided with cavity 706, upper connecting block 708 is bolted with connecting fixed plate 6, by the setting of lower connecting block 701, rubber groove 702, rubber pad 703, lower layer rubber 704, upper layer rubber 705, cavity 706, sound-absorbing cotton 707 and upper connecting block 708, when using, chassis is subjected to bumping, vibration impact from road surface, vibration is transmitted to fixed rod 1, after vibration is transmitted to lower connecting block 701, it is transmitted to lower layer rubber 704 by rubber pad 703, lower layer rubber 704 is hard rubber layer with higher hardness, can withstand greater pressure, effectively support the weight of base frame 5 and connecting fixed plate 6 and buffer low-frequency large-amplitude vibration, upper layer rubber 705 is soft rubber layer with relatively lower hardness, for preliminary buffer high-frequency small-amplitude vibration, central part is provided with vertically through cylindrical cavity 706, cavity 706 is filled with sound-absorbing cotton 707, to absorb noise generated by vibration, finally, upper connecting block 708 transmits relatively stable force after damping, sound-absorbing treatment to connecting fixed plate 6, and then acts on other components of chassis.
[0022] Further, the inner size of the rubber groove 702 matches the outer size of the lower layer rubber 704, and a plurality of mounting holes are arranged at the four corners of the lower connecting block 701 and the lower layer rubber 704. Through the arrangement of the rubber groove 702 and the lower layer rubber 704, in use, the inner size of the rubber groove 702 matches the outer size of the lower layer rubber 704, and the lower layer rubber 704 can be closely embedded in the rubber groove 702, so that the lower layer rubber 704 is always in a predetermined working position when bearing the shock impact, and the shock absorbing effect is accurate and stable.
[0023] Further, the buffer device comprises a buffer rod 709, a sliding groove 710, a sliding block 711, a connecting rod 712, and a second spring 713. The upper surface of the lower connecting block 701 is fixedly connected with the buffer rod 709. The inner surface of the buffer rod 709 is provided with the sliding groove 710. The inner surface of the sliding groove 710 is slidably connected with the sliding block 711. One end surface of the sliding block 711 is fixedly connected with the connecting rod 712. The upper surface of the lower connecting block 701 is fixedly connected with the second spring 713. The second spring 713 surrounds the outer surface of the buffer rod 709. The other end of the second spring 713 is fixedly connected with the upper connecting block 708. The other end of the connecting rod 712 is fixedly connected with the upper connecting block 708. Through the arrangement of the buffer rod 709, the sliding groove 710, the sliding block 711, the connecting rod 712, and the second spring 713, in use, the buffer rod 709 is fixed to the upper surface of the lower connecting block 701, providing a basic support frame for the entire buffer device. When the automobile chassis is subjected to a shock impact, causing the upper connecting block 708 to displace relative to the lower connecting block 701, the sliding block 711 can slide in the sliding groove 710, constraining the movement path of the upper connecting block 708, ensuring that the displacement of the upper connecting block 708 is always in a predetermined direction, avoiding unstable conditions such as skewing and twisting due to uneven force, thereby ensuring the accuracy and reliability of the shock absorbing and buffering process. When the automobile chassis encounters a shock, the upper connecting block 708 moves upward or downward, and the second spring 713 is correspondingly compressed or stretched, converting the shock impact energy into the elastic deformation energy of the spring, thereby effectively buffering the shock.
[0024] In addition, the inner size of the sliding groove 710 matches the outer size of the sliding block 711, and a plurality of buffer rods 709 are arranged on the upper surface of the lower connecting block 701. The plurality of buffer rods 709 can more evenly distribute the buffering force on the entire shock absorbing structure, and the plurality of buffer rods 709 work together to ensure that the entire base frame 5 is evenly protected, effectively improving the adaptability of the shock absorbing device to complex road conditions.
[0025] In addition, the stabilizing mechanism 4 comprises a lower fixing block 401, a first protective cylinder 402, a second protective cylinder 403, an upper fixing block 404, a stabilizing block 405, a shock absorber 406, a first spring 407, the upper surface of the fixing rod 1 is bolted with the lower fixing block 401, the upper surface of the lower fixing block 401 is fixedly connected with the first protective cylinder 402, the inner surface of the first protective cylinder 402 is slidably connected with the second protective cylinder 403, the upper surface of the second protective cylinder 403 is fixedly connected with the upper fixing block 404, the lower surface of the upper fixing block 404 is fixedly connected with the stabilizing block 405, the lower surface of the stabilizing block 405 is fixedly connected with the shock absorber 406, the lower surface of the stabilizing block 405 is fixedly connected with the first spring 407, the upper surface of the lower fixing block 401 is fixedly connected with another set of stabilizing blocks 405, the other end of the shock absorber 406 is fixedly connected with the other set of stabilizing blocks 405, the upper fixing block 404 is bolted with the base frame 5, through the arrangement of the lower fixing block 401, the first protective cylinder 402, the second protective cylinder 403, the upper fixing block 404, the stabilizing block 405, the shock absorber 406 and the first spring 407, when the base frame 5 is subjected to vibration or external impact in use, the impact force will be transmitted to the upper fixing block 404 and then to the stabilizing block 405, at this time, the first spring 407 will first play a role, using its elastic deformation to buffer and absorb part of the energy, achieving the effect of preliminary shock absorption, at the same time, the shock absorber 406 will also produce corresponding extension and contraction action according to the force received, further enhancing the shock absorption effect, when relative displacement in the up-down direction is caused by external force and other factors during the working process of the device, the second protective cylinder 403 can slide relative to the first protective cylinder 402, which can protect other internal components to a certain extent.
[0026] It is worth noting that the inner size of the first protective cylinder 402 matches the outer size of the second protective cylinder 403, a plurality of mounting holes are arranged at the four corners of the lower fixing block 401 and the upper fixing block 404, through the arrangement of the lower fixing block 401 and the upper fixing block 404, in use, the mounting holes on the lower fixing block 401 and the upper fixing block 404 can be more firmly installed on the fixing rod 1 and the base frame 5 using bolts and other connecting members, making the connection between the stabilizing mechanism 4 and the fixing rod 1 more reliable, ensuring that the stabilizing mechanism 4 will not easily loosen or shift during work.
[0027] In use, if the base frame 5 is subjected to vibration or external force impact, the impact force will be transmitted to the upper fixing block 404 and then to the stabilizing block 405, at this time, the first spring 407 will first play a role, using its elastic deformation to absorb a part of the energy, playing a preliminary damping effect, at the same time, the shock absorber 406 will also produce corresponding extension action according to the force received, further enhancing the damping effect, during the operation of the device, when the relative displacement in the up-down direction is caused by external force and other factors, the second protection cylinder 403 can slide relative to the first protection cylinder 402, which can protect other parts inside, the chassis is subjected to bumps, vibration and impact from the road surface, the vibration is transmitted to the fixed rod 1, and then to the lower connecting block 701, and then transmitted to the lower layer rubber 704 through the rubber pad 703, the lower layer rubber 704 is a hard rubber layer with high hardness, which can withstand a large pressure, effectively supporting the weight of the base frame 5 and the connecting fixed plate 6 and buffering low-frequency large-amplitude vibration, the upper layer rubber 705 is a soft rubber layer with relatively low hardness, which is used to preliminarily buffer high-frequency small-amplitude vibration, the central part is provided with a vertical cylindrical cavity 706, the cavity 706 is filled with sound-absorbing cotton 707 to absorb the noise generated by vibration, finally, the upper connecting block 708 transmits the relatively stable force after shock absorption and sound absorption to the connecting fixed plate 6, and then acts on other components of the chassis, the buffer rod 709 is fixed on the upper surface of the lower connecting block 701, which provides a basic support frame for the entire buffer device, when the automobile chassis is subjected to vibration impact, causing the upper connecting block 708 to displace relative to the lower connecting block 701, the sliding block 711 can slide in the sliding groove 710, which constrains the movement path of the upper connecting block 708, ensuring that the displacement of the upper connecting block 708 is always in the predetermined direction, avoiding instability conditions such as skewing and twisting due to uneven force, thereby ensuring the accuracy and reliability of the shock absorption and buffering process, when the automobile chassis encounters vibration, the upper connecting block 708 moves upward or downward, the second spring 713 is compressed or stretched accordingly, converting the vibration impact energy into elastic deformation energy of the spring, thereby effectively buffering the vibration.
[0028] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A rubber shock absorber structure for an automobile chassis, comprising a fixing rod (1), characterized in that: The inner surface of the fixed rod (1) is rotatably connected to a rotating shaft (2), and a wheel (3) is fixedly connected to one end surface of the rotating shaft (2). A stabilizing mechanism (4) is provided on the upper surface of the fixed rod (1), and a base frame (5) is connected to the upper surface of the stabilizing mechanism (4). A connecting fixing plate (6) is fixedly connected to one side surface of the base frame (5), and a shock-absorbing mechanism (7) is provided on the upper surface of the fixed rod (1). The shock absorption mechanism (7) includes a shock absorption device and a buffer device. The buffer device guides the shock absorption device and assists the shock absorption device in shock absorption.
2. The automobile chassis rubber shock absorption structure according to claim 1, characterized in that: The vibration damping device includes a lower connecting block (701), a rubber groove (702), a rubber pad (703), a lower layer of rubber (704), an upper layer of rubber (705), a cavity (706), sound-absorbing cotton (707), and an upper connecting block (708). The upper surface of the fixing rod (1) is bolted to the lower connecting block (701). The upper surface of the lower connecting block (701) is provided with a rubber groove (702). The inner surface of the rubber groove (702) is fixedly connected to the rubber pad (703). The upper surface of the rubber pad (703) is... A lower layer of rubber (704) is fixedly connected to the surface of the lower layer of rubber (704), and an upper layer of rubber (705) is fixedly connected to the upper surface of the lower layer of rubber (704). A cavity (706) is opened on the inner surface of the upper layer of rubber (705), and sound-absorbing cotton (707) is fixedly connected to the inner surface of the cavity (706). An upper connecting block (708) is fixedly connected to the upper surface of the upper layer of rubber (705), and a cavity (706) is also opened on the inner surface of the lower layer of rubber (704). The upper connecting block (708) is bolted to the connecting fixing plate (6).
3. The automobile chassis rubber shock absorption structure according to claim 2, characterized in that: The inner dimensions of the rubber groove (702) match the outer dimensions of the lower rubber layer (704), and multiple sets of mounting holes are provided at the four corners of the lower connecting block (701) and the lower rubber layer (704).
4. The automobile chassis rubber shock absorption structure according to claim 2, characterized in that: The buffer device includes a buffer rod (709), a sliding groove (710), a sliding block (711), a connecting rod (712), and a second spring (713). The buffer rod (709) is fixedly connected to the upper surface of the lower connecting block (701). The inner surface of the buffer rod (709) is provided with a sliding groove (710). The sliding block (711) is slidably connected to the inner surface of the sliding groove (710). The connecting rod (712) is fixedly connected to one end surface of the sliding block (711). The second spring (713) is fixedly connected to the upper surface of the lower connecting block (701). The second spring (713) surrounds the outer surface of the buffer rod (709). The other end of the second spring (713) is fixedly connected to the upper connecting block (708). The other end of the connecting rod (712) is fixedly connected to the upper connecting block (708).
5. The automobile chassis rubber shock absorption structure according to claim 4, characterized in that: The inner dimension of the sliding groove (710) matches the outer dimension of the sliding block (711), and multiple sets of the buffer rod (709) are provided on the upper surface of the lower connecting block (701).
6. The automobile chassis rubber shock absorption structure according to claim 1, characterized in that: The stabilizing mechanism (4) includes a lower fixing block (401), a first protective cylinder (402), a second protective cylinder (403), an upper fixing block (404), a stabilizing block (405), a shock absorber (406), and a first spring (407). The upper surface of the fixing rod (1) is bolted to the lower fixing block (401), and the upper surface of the lower fixing block (401) is fixedly connected to the first protective cylinder (402). The inner surface of the first protective cylinder (402) is slidably connected to the second protective cylinder (403), and the upper surface of the second protective cylinder (403) is fixedly connected to the second protective cylinder (403). An upper fixing block (404) is fixedly connected to the base frame (5). A stabilizing block (405) is fixedly connected to the lower surface of the upper fixing block (404). A shock absorber (406) is fixedly connected to the lower surface of the stabilizing block (405). A first spring (407) is fixedly connected to the lower surface of the stabilizing block (405). Another set of the stabilizing blocks (405) is fixedly connected to the upper surface of the lower fixing block (401). The other end of the shock absorber (406) is fixedly connected to the other set of the stabilizing blocks (405). The upper fixing block (404) is bolted to the base frame (5).
7. The automobile chassis rubber shock absorption structure according to claim 6, characterized in that: The inner dimensions of the first protective cylinder (402) match the outer dimensions of the second protective cylinder (403), and multiple sets of mounting holes are provided at the four corners of the lower fixing block (401) and the upper fixing block (404).