Fluororubber damping structure of automobile chassis
By designing a ratchet mechanism in the rubber bushing, the problem of damage to the rubber ring under multi-directional torque is solved, and the rubber ring can withstand torque in one direction, thus extending its service life and strength.
Patent Information
- Application Number
- CN202520048887.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Rubber bushings are prone to damage when subjected to multi-directional torque, resulting in a shortened service life.
A ratchet mechanism is formed by using a first rubber ring and a second rubber ring, respectively, with the first connecting ring and the second connecting ring. Through the design of the pawl and the spring, the rubber ring only bears the torque in one direction, avoiding damage caused by bidirectional force.
It improves the service life and strength of the rubber ring, ensuring that only unidirectional torque is applied to the rubber ring when rotating in different directions, thus extending the service life of the rubber bushing.
Smart Images
Figure CN223635244U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automobile shock absorbing rubber technical field, concretely is a kind of automobile chassis fluorine rubber shock absorbing structure. BACKGROUND
[0002] Automobile shock absorbing rubber bushing is an important component in automobile shock absorbing system, and its main function is to help shock absorber better absorb and buffer the impact from the road, and provide more stable and comfortable driving experience. It is usually composed of rubber layer, inner sleeve and outer sleeve, with good elasticity and buffering performance, and can shock absorb automobile chassis.
[0003] There are some problems in the use of rubber bushing, specifically, since the rubber ring needs to bear the torque from two directions, it is prone to damage during use, thereby shortening the service life. Specifically, when the vehicle runs on uneven road, the chassis will be impacted and vibrated from various directions, and these forces will be transmitted to the rubber ring through the rubber bushing, causing elastic deformation. However, due to the material and structural design limitations of the rubber ring, it is prone to internal structural damage when subjected to torque from multiple directions, and even cracks or fractures, therefore a kind of automobile chassis fluorine rubber shock absorbing structure is proposed. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model provides an automobile chassis fluorine rubber shock absorbing structure to solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automobile chassis fluorine rubber shock absorbing structure, comprising an outer sleeve and an inner sleeve, the inner wall of the outer sleeve and the outer wall of the inner sleeve are respectively vulcanized and fixed with a first rubber ring and a second rubber ring, the inner wall of the first rubber ring and the outer wall of the second rubber ring are respectively fixedly connected with a first connecting ring and a second connecting ring, the inner wall of the first connecting ring and the outer wall of the second connecting ring are both provided with a let slot, the let slot is rotatably connected with a pawl and a spring piece that applies external elastic force to the pawl, the inner wall of the outer sleeve and the outer wall of the inner sleeve are respectively provided with a second ratchet groove and a first ratchet groove, which form a ratchet mechanism with the pawl of the outer wall of the second connecting ring and the pawl of the inner wall of the first connecting ring.
[0006] Preferably, the number of first rubber ring, second rubber ring, first connecting ring and second connecting ring is two, the number of first ratchet groove and second ratchet groove is two groups, two first rubber rings are fixed with the inner wall of the two ends of the outer sleeve, and two second rubber rings are fixed with the outer wall of the middle part of the inner sleeve.
[0007] Preferably, the number of let slot on the inner wall of the first connecting ring and the outer wall of the second connecting ring is not less than four.
[0008] Preferably, the outer sleeve comprises a first sleeve ring and a second sleeve ring, and the second set of ratchet grooves are respectively arranged on the inner walls of the first sleeve ring and the second sleeve ring, and the two first rubber rings are respectively fixedly connected with the inner walls of the first sleeve ring and the second sleeve ring.
[0009] Preferably, the end faces of the first sleeve ring and the second sleeve ring are respectively provided with a plurality of fixing holes, and the fixing holes are provided with the fixed rods in an interference fit.
[0010] Preferably, the two end edges of the inner sleeve are respectively provided with inclined chamfers, the width of the inclined chamfer is greater than the maximum outer turning point of the ratchet of the inner wall of the first connecting ring, and the outer end inner wall of the first connecting ring is an inwardly inclined structure and shields the inclined chamfer.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The utility model discloses a first rubber ring and a second rubber ring are used as the rubber layer of damping between the inner sleeve and the outer sleeve, the first rubber ring and the second rubber ring adopt two ratchet mechanisms of different limiting directions respectively, and then when the inner sleeve rotates in different directions, only one of the first rubber ring and the second rubber ring generates unidirectional torsion in each direction, and then the phenomenon that the rubber ring is damaged easily by two direction torsions is avoided, and the service life is improved.
[0013] Other features and advantages of the present utility model will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the present utility model. The objects and other advantages of the present utility model can be realized and achieved by means of the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the whole structure schematic diagram of the utility model;
[0015] Figure 2 It is the cross section schematic diagram of the whole structure of the utility model;
[0016] Figure 3 It is the schematic diagram of the inner sleeve and the outer wall structure of the utility model;
[0017] Figure 4 It is the schematic diagram of the cross section and the inner wall structure of the outer sleeve of the utility model;
[0018] Figure 5 It is the schematic diagram of the cross section of the second connecting ring and the structure inside the accommodation slot in the utility model
[0019] Figure 6 It is the schematic diagram of the cross section of the first connecting ring and the structure inside the accommodation slot in the utility model.
[0020] In the figure: 1, outer sleeve; 101, first sleeve ring; 102, second sleeve ring; 2, inner sleeve; 3, first rubber ring; 4, first connecting ring; 5, second rubber ring; 6, second connecting ring; 7, first ratchet groove; 8, second ratchet groove; 9, give way slot; 10, ratchet claw; 11, elastic sheet; 12, fixing hole; 13, fixing rod; 14, bevel chamfer. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0022] Please refer to Figures 1-6The utility model discloses a fluorine rubber damping structure of automobile chassis, including the cover 1 and the inner cover 2, the inner wall vulcanization of cover 1 is fixed with first rubber ring 3, the outer wall vulcanization of inner cover 2 is fixed with second rubber ring 5, and the inner wall of first rubber ring 3 and the outer wall of second rubber ring 5 are fixed with first connecting ring 4 and second connecting ring 6 respectively, and the inner wall of first connecting ring 4 and the outer wall of second connecting ring 6 are all provided with the slot 9 that gives way, the slot 9 is rotatably connected with the pawl 10 and the spring 11 that applies the external elasticity to the pawl 10, and the spring 11 always applies an outward force to the pawl 10, and the inner wall of cover 1 and the outer wall of inner cover 2 are respectively provided with the second ratchet groove 8 that forms the ratchet mechanism with the pawl 10 of the outer wall of second connecting ring 6 and the first ratchet groove 7 that forms the ratchet mechanism with the pawl 10 of the inner wall of first connecting ring 4, and the first ratchet groove 7 and the second ratchet groove 8 respectively cooperate the pawl 10 on first connecting ring 4 and second connecting ring 6 to limit one of the rotational directions of inner cover 2, and first rubber ring 3 and second rubber ring 5 are fluorine rubber, and when using, cover 1 is fixed on the structure for damping automobile chassis, when the inner cover 2 rotates clockwise, the first ratchet groove 7 of the outer wall of inner cover 2 will engage with the pawl 10 of the inner wall of first connecting ring 4, and then through first connecting ring 4, the torsion is applied to first rubber ring 3, and simultaneously, first connecting ring 4 drives second rubber ring 5 and second connecting ring 6 to rotate, and the pawl 10 of the outer wall of second connecting ring 6 slides with the second ratchet groove 8 of the inner wall of cover 1, and when the inner cover 2 rotates counterclockwise, the first ratchet groove 7 of the outer wall of inner cover 2 will slide with the pawl 10 of the inner wall of first connecting ring 4, and the pawl 10 of the outer wall of second connecting ring 6 engages with the second ratchet groove 8 of the inner wall of cover 1, and then the second connecting ring 6 is limited, and the inner cover 2 applies the torsion to second rubber ring 5, and the two directions of the rotation of inner cover 2 are limited through first rubber ring 3 and second rubber ring 5 respectively, and then damping is realized, and the phenomenon that the rubber ring of automobile damping rubber bushing is easily damaged under bidirectional stress when bidirectional stress is applied is avoided, and first rubber ring 3 and second rubber ring 5 only need to bear the torsion of single direction, so that the service life and the use strength of rubber ring in automobile damping rubber bushing are improved.
[0023] The number of first rubber ring 3, second rubber ring 5, first connecting ring 4 and second connecting ring 6 is two, and the number of first ratchet groove 7 and second ratchet groove 8 is two groups, two first rubber rings 3 are fixed with the inner wall of the both ends of cover 1, and two second rubber rings 5 are fixed with the outer wall of the middle part of inner cover 2, a plurality of first rubber rings 3 and second rubber rings 5 are used to disperse torsion, and are symmetrically distributed simultaneously, so that the uniformity of bearing torsion when bearing stress is ensured, when single first rubber ring 3 or single second rubber ring 5 is damaged, another first rubber ring 3 or second rubber ring 5 can still perform damping effect, and practicality is improved.
[0024] The number of the position slots 9 in the inner wall of the first connecting ring 4 and the outer wall of the second connecting ring 6 is not less than four, and the plurality of pawls 10 in the plurality of position slots 9 are dispersedly stressed when engaging the first and second ratchet slots 7 and 8, thereby improving the stability of the stress, ensuring the strength, and ensuring the use effect when some of the plurality of pawls 10 are damaged.
[0025] The outer sleeve 1 comprises a first sleeve ring 101 and a second sleeve ring 102, and the two groups of second ratchet slots 8 are arranged in the inner walls of the first sleeve ring 101 and the second sleeve ring 102, respectively. The two first rubber rings 3 are vulcanization-fixed with the inner walls of the first sleeve ring 101 and the second sleeve ring 102, respectively, so as to divide the outer sleeve 1 into two parts, facilitating the sleeving of the first sleeve ring 101 and the second sleeve ring 102 on the outer wall of the inner sleeve 2 from both ends of the inner sleeve 2, and then facilitating the installation of the two first rubber rings 3 and the first sleeve ring 101 and the second sleeve ring 102 on the inner sleeve 2 during production.
[0026] The end faces of the first sleeve ring 101 and the second sleeve ring 102 are provided with a plurality of fixing holes 12, and the fixing holes 12 are provided with a fixed rod 13 in interference fit. After the first sleeve ring 101 and the second sleeve ring 102 are installed on the inner sleeve 2, the first sleeve ring 101 and the second sleeve ring 102 are fixed by the fixed rod 13, thereby improving the connectivity and ensuring the uniformity of the two first rubber rings 3 and the two second rubber rings 5 under stress.
[0027] The two ends of the inner sleeve 2 are provided with inclined chamfers 14, and the width of the inclined chamfers 14 is greater than the maximum outer turning point of the pawls 10 in the inner wall of the first connecting ring 4. When the outer sleeve 1 is installed on the inner sleeve 2, the guiding property of the inclined chamfers 14 can top the pawls 10 in the inner wall of the first connecting ring 4 into the position slots 9, thereby facilitating the installation operation.
[0028] The outer end inner wall of the first connecting ring 4 is an inwardly inclined structure, and the inclined portion blocks the inclined chamfer 14. By blocking the inclined chamfer 14 by the first connecting ring 4, dust can be prevented from entering the gap between the two, dust accumulation can be reduced, and wear caused by dust can be reduced.
Claims
1. A fluororubber shock absorbing structure for an automobile chassis comprising an outer sleeve (1) and an inner sleeve (2), characterized in that, The inner wall of the outer sleeve (1) and the outer wall of the inner sleeve (2) are vulcanized and fixed with a first rubber ring (3) and a second rubber ring (5) respectively, the inner wall of the first rubber ring (3) and the outer wall of the second rubber ring (5) are fixedly connected with a first connecting ring (4) and a second connecting ring (6) respectively, the inner wall of the first connecting ring (4) and the outer wall of the second connecting ring (6) are both provided with a let slot (9), the let slot (9) is rotatably connected with a pawl (10) and a spring sheet (11) which applies external elastic force to the pawl (10), the inner wall of the outer sleeve (1) and the outer wall of the inner sleeve (2) are both provided with a second ratchet groove (8) and a first ratchet groove (7) which form a ratchet mechanism with the pawl (10) on the outer wall of the second connecting ring (6) and the pawl (10) on the inner wall of the first connecting ring (4) respectively.
2. The fluororubber vibration damping structure for an automobile chassis according to claim 1, wherein The number of the first rubber ring (3), the second rubber ring (5), the first connecting ring (4) and the second connecting ring (6) is two, the number of the first ratchet groove (7) and the second ratchet groove (8) is two groups, two first rubber rings (3) are fixed with the inner wall of the two ends of the outer sleeve (1), and two second rubber rings (5) are fixed with the outer wall of the middle part of the inner sleeve (2).
3. The fluororubber vibration damping structure for an automobile chassis according to claim 1, wherein The number of the let slot (9) on the inner wall of the first connecting ring (4) and the let slot (9) on the outer wall of the second connecting ring (6) is not less than four.
4. The fluororubber vibration damping structure for an automobile chassis according to claim 2, wherein The outer sleeve (1) comprises a first sleeve ring (101) and a second sleeve ring (102), two groups of second ratchet grooves (8) are provided on the inner walls of the first sleeve ring (101) and the second sleeve ring (102) respectively, and two first rubber rings (3) are vulcanized and fixed with the inner walls of the first sleeve ring (101) and the second sleeve ring (102) respectively.
5. The fluororubber vibration damping structure for an automobile chassis according to claim 4, wherein The end faces of the first sleeve ring (101) and the second sleeve ring (102) are both provided with a plurality of fixed holes (12), and the fixed holes (12) are provided with a fixed rod (13) in interference fit.
6. The fluororubber vibration damping structure for an automobile chassis according to claim 5, wherein The two ends of the inner sleeve (2) are both provided with an inclined chamfer (14), the width of the inclined chamfer (14) is greater than the maximum outer turning point of the pawl (10) on the inner wall of the first connecting ring (4), and the outer end inner wall of the first connecting ring (4) is an inwardly inclined structure which blocks the inclined chamfer (14).