CN210139754U - Novel anti-dislocation automobile plate spring - Google Patents

Abstract

The utility model provides a novel prevent dislocation car leaf spring, the easy dislocation that takes place between the car leaf spring reed has been solved, lead to the abnormal sound, technical problem such as damage, protruding through first mistake proofing position, first mistake proofing position recess and second mistake proofing position are protruding, the second mistake proofing position recess combines together, under the prerequisite that does not set up the clamp, it turns round to have avoided producing the side between two adjacent reeds, the dislocation, and set up the ring shape liner of nylon ring in the central nut, prevent that central nut back-off is detained, it is not hard up, the structure of car leaf spring has further been stabilized, the reliability that the car went has been increased, but wide application in car shock attenuation technical field.

Description

Novel anti-dislocation automobile plate spring

Technical Field

The utility model relates to an automobile shock attenuation technical field, in particular to novel mistake proofing position car leaf spring.

Background

The automobile plate spring is the most traditional elastic element in an automobile suspension system, and is widely applied due to good reliability, simple structure and short manufacturing process flow. Automobile plate spring plays cushioning effect in suspension system, in the in-service use process, both received the power of vertical direction and received the yawing force again, easily lead to the dislocation between the reed, adopt the clamp to hoop automobile plate spring reed together at present and prevent the reed atress dislocation, nevertheless the clamp can become flexible at the in-process of long-term use and cause abnormal sound and damage, thereby lead to taking place the dislocation between the automobile plate spring reed, produce abnormal sound and damage, seriously influence the reliability of leaf spring, so need to do new adjustment to automobile plate spring's structure urgent need.

Disclosure of Invention

The utility model aims at solving the not enough of above-mentioned technique, provide a simple structure, prevent to take place the novel car leaf spring of dislocation between the car leaf spring reed.

Therefore, the utility model provides a novel anti-dislocation automobile plate spring, it includes main spring, auxiliary spring, main spring, auxiliary spring are middle part straight, both ends ascending arc structure, be equipped with the noise reduction gasket between the straight section in main spring, auxiliary spring middle part, main spring, noise reduction gasket, auxiliary spring pass through central bolt, central nut fixed connection together, main spring includes the multi-disc reed, be equipped with the first anti-dislocation arch and the first anti-dislocation recess of mutual gomphosis on the both ends of main spring, two adjacent reeds respectively, the extending direction of first anti-dislocation arch and first anti-dislocation recess is unanimous with the length direction of main spring reed; a second anti-dislocation bulge and a second anti-dislocation groove which are mutually embedded are respectively arranged on the middle straight section of the main spring and two adjacent spring leaves, and the extension directions of the second anti-dislocation bulge and the second anti-dislocation groove are consistent with the length direction of the spring leaves of the main spring; the central nut is internally provided with a nylon ring-shaped gasket which is arranged outside the internal thread of the central nut and sleeved on the external thread of the central bolt.

Preferably, the length of the first dislocation prevention groove is greater than the length of the first dislocation prevention protrusion.

Preferably, the second anti-dislocation protrusions and the second anti-dislocation grooves are arranged into two groups and are respectively positioned on two sides of the central bolt.

Preferably, the auxiliary spring comprises a plurality of spring leaves, and two ends of the plurality of spring leaves of the auxiliary spring are respectively hooped together by a hoop.

Preferably, the upper part of the main spring straight section is provided with a backing plate.

Preferably, the noise reduction gasket and the base plate are made of composite carbon fibers.

Preferably, the main spring has a pair of tabs at both ends thereof, and the tabs are formed by inwardly winding both ends of the uppermost leaf of the main spring.

Preferably, a metal composite bushing is arranged in the rolling lug.

The utility model provides a novel prevent dislocation car leaf spring has following beneficial effect:

⑴ the utility model discloses a cancel the clamp, adopt first mistake proofing location arch, first mistake proofing location recess and second mistake proofing location arch, second mistake proofing location recess to combine together, make the car leaf spring in the actual use, because the gomphosis of first mistake proofing location arch, first mistake proofing location recess, second mistake proofing location arch, second mistake proofing location recess has prevented the side twist between the car leaf spring reed, the emergence of car leaf spring dislocation has been avoided, abnormal sound and damage between the car leaf spring reed have been reduced, the reliability and the travelling comfort that have guaranteed the car leaf spring and have prolonged the life of car;

⑵, a nylon ring-shaped gasket is arranged in the central nut, the nylon ring-shaped gasket is extruded and deformed to be tightly sleeved on the external thread of the central bolt, the central nut is effectively prevented from being buckled and loosened, the central bolt and the central nut are prevented from loosening to bring loosening and dislocation between leaf springs of the automobile leaf spring, and the automobile leaf spring structure is further stabilized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a sectional view A-A shown in FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 1;

fig. 5 is a schematic view of the center nut shown in fig. 1.

The labels in the figure are: 1. the anti-collision device comprises a main spring, 2 auxiliary springs, 3 noise reduction gaskets, 4 central bolts, 5 central nuts, 6 first anti-dislocation protrusions, 7 first anti-dislocation grooves, 8 second anti-dislocation protrusions, 9 second anti-dislocation grooves, 10 hoops, 11 rivets, 12 nylon annular gaskets, 13 backing plates, 14 rolling lugs and 15 metal composite bushings.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

By figure 1, as shown in figure 3, the utility model provides a novel prevent dislocation car leaf spring, it includes main spring 1, vice spring 2, main spring 1, vice spring 2 is the middle part straight, both ends ascending arc structure, main spring 1, be equipped with between the straight section in vice spring 2 middle part and fall the gasket 3 of making an uproar, main spring 1, fall the gasket 3 of making an uproar, vice spring 2 passes through central bolt 4, central nut 5 fixed connection is in the same place, main spring 1 includes the multi-disc reed, main spring 1's both ends, be equipped with the protruding 6 of first mistake proofing of mutual gomphosis and first mistake proofing recess 7 on two adjacent reeds respectively, first mistake proofing arch 6 is located in first mistake proofing recess 7, the extending direction of first mistake proofing arch 6 and first mistake proofing recess 7 is unanimous with the length direction of main spring 1 reed, the length of first mistake proofing recess 7 is greater than the protruding 6 of first mistake proofing, the length of first mistake proofing recess 7 is greater than the protruding 6 of first length of first mistake proofing when having guaranteed that first leaf spring is resisted the power, the power The offset projections 6 have sufficient space for extension.

As shown in fig. 1 and 2, a middle straight section of the main spring 1 and two adjacent reeds are respectively provided with a second anti-dislocation protrusion 8 and a second anti-dislocation groove 9 which are mutually embedded, the second anti-dislocation protrusion 8 is arranged in the second anti-dislocation groove 9, the extending directions of the second anti-dislocation protrusion 8 and the second anti-dislocation groove 9 are consistent with the length direction of the reeds of the main spring 1, the lengths of the second anti-dislocation protrusion 8 and the second anti-dislocation groove 9 are smaller than the length of the middle straight section of the main spring 1, and the second anti-dislocation protrusion 8 and the second anti-dislocation groove 9 are respectively arranged in two groups and are respectively located on two sides of the central bolt 4. When the automobile leaf spring bearing is crooked, first dislocation prevention arch 6 and first dislocation prevention recess 7 in close contact with, second dislocation prevention arch 8 and second dislocation prevention recess 9 in close contact with, the first dislocation prevention arch 6 and first dislocation prevention recess 7 of mutual gomphosis combine together with second dislocation prevention arch 8 and second dislocation prevention recess 9 of mutual gomphosis, effectively prevented the side twist dislocation between main spring 1 reed, abnormal sound and damage between the reed have been reduced, the reliability that the automobile went has been guaranteed.

As shown in fig. 1, 2 and 5, a nylon ring-shaped gasket 12 is arranged in the central nut 5, and the nylon ring-shaped gasket 12 is arranged outside the internal thread of the central nut 5 and is fixedly connected with the central nut 5; when fixing main spring 1, noise reduction gasket 3 and auxiliary spring 2 together with central bolt 4 and central nut 5, the internal thread threaded connection of central nut 5 is on the external screw thread of central bolt 4, along with the tightening of central nut 5, nylon ring shape liner 12 is by extrusion deformation, form the screw thread, tightly overlap on the external screw thread of central bolt 4, prevent effectively that central nut 5 from backing out, not hard up, the not hard up dislocation between the car leaf spring reed because of central nut 5 is not hard up brings, car leaf spring structure has further been stabilized.

As shown in fig. 4, the auxiliary spring 2 comprises a plurality of spring leaves, two ends of the spring leaves of the auxiliary spring 2 are respectively hooped together by a hoop 10 to form a whole body, the bearing is carried together, the hoop 10 is a U-shaped plate, the spring leaves of the auxiliary spring 2 are hooped in the U-shaped plate, and a bottom plate of the U-shaped plate is fixedly connected with the spring leaf at the lowest layer of the auxiliary spring 2 through a rivet 11.

As shown in fig. 1, a backing plate 13 is arranged at the upper part of the straight section of the main spring 1; the noise reduction gasket 3 and the base plate 13 are made of composite carbon fiber materials, so that noise and abnormal sound between leaf springs of the automobile leaf spring are effectively reduced.

The two ends of the main spring 1 are provided with the rolling ears 14, the rolling ears 14 are formed by winding the two ends of the uppermost reed of the main spring 1 inwards, the rolling ears 14 are used for positioning and installing the automobile leaf spring below an automobile body, and the rolling ears 14 are internally provided with the metal composite bushings 15 to enhance the wear resistance of the rolling ears 14.

The utility model discloses used main spring 1, vice spring 2 all adopt the equal width reed stack to form, and used reed adopts 60Si2Mn alloy spring steel to make, and the cost of manufacture is low, and car leaf spring performance is excellent. When the automobile is unloaded, two ends of the auxiliary spring 2 are not in contact with the main spring 1, only the main spring 1 acts, the auxiliary spring 2 is in a no-load state, and the main spring 1 and the auxiliary spring 2 bear full-load together when the automobile is fully loaded, so that the problems of the fatigue life of the automobile and the inconsistency of the idle and full-load riding smoothness are effectively solved, and the riding comfort of the whole automobile in the running process and the service life of the whole automobile are improved.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims (8)

1. A novel anti-dislocation automobile plate spring comprises a main spring and an auxiliary spring, wherein the main spring and the auxiliary spring are arc structures with straight middle parts and upward two ends, noise reduction gaskets are arranged between straight middle parts of the main spring and the auxiliary spring, and the main spring, the noise reduction gaskets and the auxiliary spring are fixedly connected together through a central bolt and a central nut; a second anti-dislocation bulge and a second anti-dislocation groove which are mutually embedded are respectively arranged on the middle straight section of the main spring and two adjacent spring leaves, and the extending directions of the second anti-dislocation bulge and the second anti-dislocation groove are consistent with the length direction of the main spring leaf; a nylon ring-shaped gasket is arranged in the central nut, and is arranged on the outer side of the internal thread of the central nut and sleeved on the external thread of the central bolt.

2. The novel anti-dislocation automobile plate spring as claimed in claim 1, wherein the length of the first anti-dislocation groove is greater than the length of the first anti-dislocation bulge.

3. The novel anti-dislocation automobile plate spring as claimed in claim 1, wherein the second anti-dislocation protrusions and the second anti-dislocation grooves are arranged in two groups, respectively located at two sides of the central bolt.

4. The novel anti-dislocation automobile plate spring as claimed in claim 1, wherein the auxiliary spring comprises a plurality of spring leaves, and two ends of the plurality of spring leaves are respectively hooped together by a hoop.

5. The novel anti-dislocation automobile plate spring as claimed in claim 1, wherein a backing plate is arranged at the upper part of the straight section of the main spring.

6. The novel anti-dislocation automobile plate spring as claimed in claim 5, wherein the noise reduction gasket and the base plate are made of composite carbon fibers.

7. The novel anti-dislocation automobile plate spring as claimed in claim 1, wherein the main spring is provided with rolling ears at both ends, and the rolling ears are formed by winding inward both ends of the uppermost leaf of the main spring.

8. The novel anti-dislocation automobile plate spring as claimed in claim 7, wherein a metal composite bushing is arranged in the rolling lug.

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