CN216666323U

CN216666323U - Novel steel plate spring for enhancing load and stability

Info

Publication number: CN216666323U
Application number: CN202220140461.9U
Authority: CN
Inventors: 王世明
Original assignee: Zhejiang Yonglian Auto Parts Co ltd
Current assignee: Zhejiang Yonglian Auto Parts Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-06-03
Anticipated expiration: 2032-01-19

Abstract

The utility model belongs to the technical field of automobile appliances, and particularly relates to a novel steel plate spring for enhancing load and stability. The utility model discloses a novel steel plate spring for enhancing load and stability, which comprises a plurality of steel plate spring pieces, wherein the lower ends of connecting pieces are arranged below second steel plate spring pieces, and the upper ends of the two connecting pieces are connected through an upper enhancing spring piece; the middle parts of the upper reinforcing spring piece and the lower reinforcing spring piece are tightly attached and locked by a U-shaped bolt. The utility model has the beneficial effects that: the plate spring can exert the performance of the original plate spring to the maximum extent, obtain large deflection and small specific stress, cannot cause deformation and falling, and prevents the structure from being influenced by rebound force to prolong the service life, thereby ensuring that the automobile has good running stability.

Description

Novel steel plate spring for enhancing load and stability

Technical Field

The utility model belongs to the technical field of automobile appliances, and particularly relates to a novel steel plate spring for enhancing load and stability.

Background

The structure of the steel plate spring for the automobile at present mainly comprises a plurality of steel plate spring pieces, and the steel plate spring pieces are fixed through a central pin shaft. The fatigue resistance of the steel plate spring is greatly reduced in the using process of the automobile, so that the steel plate spring is damaged and potential safety hazards are caused. In order to solve the above problems, the applicant previously filed a patent with patent number 202021956664.2 entitled externally hung type steel plate spring for enhancing stability. The patent is greatly improved on the problems after being converted into the results, but has the following defects: firstly, the whole structure is supported and improved by an auxiliary spring piece, so that the whole structure is improved, and in order to achieve a good improvement effect, the V-shaped component is arranged close to two ends of a steel plate spring, so that the V-shaped component is subjected to a large pulling force, the V-shaped component is deformed, and the use effect is influenced; and secondly, two ends of the overlong auxiliary spring piece are fixed on the first spring steel piece, so that when the spring steel piece is stressed and stretched to recover, force can be counteracted on the auxiliary spring piece, and the auxiliary spring piece is extruded, so that the service life is influenced.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a novel steel plate spring for enhancing the load and the stability, which can furthest exert the performance of the original plate spring, increase the load of the original plate spring, improve the control state and the stability under the load state, has uniform stress distribution and greatly reduced dynamic stiffness, obtains large deflection and small specific stress, cannot cause deformation and falling, prevents the structure from being influenced by rebound force and prolongs the service life, thereby ensuring good running stability of an automobile, and the technical scheme is as follows:

the novel steel plate spring for enhancing the load and the stability comprises a plurality of steel plate spring pieces, wherein the centers of the plurality of steel plate spring pieces are fixed through a central pin shaft, and the steel plate spring piece positioned at the top is a first steel plate spring piece; connecting pieces are arranged at two ends of the steel plate spring, the lower end of each connecting piece is arranged below the second steel plate spring piece, and the upper ends of the two connecting pieces are connected through an upper reinforcing spring piece; the middle parts of the upper reinforcing spring piece and the lower reinforcing spring piece are tightly attached and locked by a U-shaped bolt.

The lower reinforcing spring piece is in direct contact with the first steel plate spring piece to fix the whole mechanism, and meanwhile, the trapezoidal shape can well play a role in buffering.

The V-shaped member and the U-shaped bolt are used for reinforcing the spring pieces downwards, and the effect is that the auxiliary spring pieces are prevented from displacing under better fixation, and the connection between the steel plate spring pieces is more stable, so that the dislocation displacement between the steel plate spring pieces is prevented.

The connecting piece is used for connecting the upper reinforcing spring piece and the original vehicle leaf spring, and the upper reinforcing spring piece cannot displace due to the effect of the connecting piece.

The upper reinforcing spring piece has the function of forming an upward reaction force when the steel plate spring is in load bearing and stretching; the spring has the effects that the performance of the original vehicle spring can be exerted to the maximum extent, the load of the original vehicle spring is increased, the control state and the stability in a load state are improved, the stress distribution is uniform, the dynamic stiffness is greatly reduced, and large deflection and small specific stress are obtained.

The lower reinforced spring leaf and the upper reinforced spring leaf are combined together to form a new auxiliary steel plate spring effect, so that the load of the original vehicle plate spring can be greatly reinforced. Meanwhile, the upper and lower combination of the lower reinforcing spring piece and the upper reinforcing spring piece and the length design of the upper reinforcing spring piece and the lower reinforcing spring piece ensure that the whole mechanism has primary and secondary functions during bearing, and the stress has layering effect, so that the stress is uniformly distributed, the dynamic stiffness is greatly reduced, and large deflection and small specific stress are obtained.

The preferred mode does, the connecting piece including the splint of symmetry setting, the upper portion and the lower part of two splint are passed through the upper shaft and are linked together with the lower shaft, two splint divide and establish the both sides at leaf spring, the lower shaft passes the lower part of two splint and is located the below of second leaf spring piece.

The position relation of splint and lower shaft and with the second steel sheet spring leaf for the lower part of connecting piece and former car leaf spring are not the snap-on, and its effect is when former car leaf spring is recovered, and the reinforcing spring leaf can not be driven to the rigidity to the connecting piece, thereby can prevent to force the compression to last reinforcing spring leaf, prevent that the structure from receiving bounce and influencing life.

Preferably, the two ends of the upper reinforcing spring piece are provided with a rolling lug which is arranged between the two clamping plates, and the rolling lug is connected with the two clamping plates in a penetrating way through the upper shaft.

The ear-curls, the clamping plate and the upper shaft are fixedly connected, so that the upper reinforcing spring piece can be better fixed on the lower reinforcing spring piece, and the upper reinforcing spring piece and the lower reinforcing spring piece are prevented from displacing.

Preferably, the upper reinforcing spring piece is thin at two ends and thick in the middle.

The design of the upper reinforcing spring piece can further improve the control state and stability under the load state, the stress distribution is uniform, the dynamic stiffness is greatly reduced, and large deflection and small specific stress are obtained.

Preferably, the plurality of steel plate spring pieces are provided with clamping hoops, and the V-shaped component is positioned between the clamping hoops and the central pin shaft and is close to one end of the central pin shaft.

The design of V-arrangement component position can make U-shaped bolt when the V-arrangement component, can include into more steel sheet spring leaf to can make and can not take place the displacement between more steel sheet spring leaves.

The utility model has the beneficial effects that: the automobile spring device has the advantages that the performance of the original automobile spring can be exerted to the maximum extent, the load of the original automobile spring is increased, the control state and stability under the load state are improved, the stress distribution is uniform, the dynamic stiffness is greatly reduced, large deflection and small specific stress are obtained, deformation and falling cannot be caused, the structure is prevented from being influenced by the rebound force, the service life is prolonged, and accordingly the automobile is guaranteed to have good running stability.

Drawings

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic view of an upper reinforcement spring plate and a lower reinforcement spring plate.

Fig. 3 is a schematic view of a connector.

Detailed Description

The following embodiments are specifically described with reference to fig. 1 to 3:

as shown in fig. 2, the spring plate comprises an upper reinforcing spring plate 1 and a lower reinforcing spring plate 2, and the middle centers of the upper reinforcing spring plate and the lower reinforcing spring plate are fixedly connected through a pin shaft 3. The pin shaft and the central pin shaft 4 are positioned on the same straight line. The lower surface of the upper reinforcing spring piece is tightly attached to the upper surface of the lower reinforcing spring piece. The lower reinforcing spring piece is integrally in a trapezoid shape with a high middle and two low ends. The two ends of the lower reinforcing spring piece are bent upwards to form V-shaped components 5. The lower reinforcing spring plate is shorter, and the length of the lower reinforcing spring plate is generally one fourth to one third of that of the upper reinforcing spring plate.

The whole upper reinforcing spring piece can be in a curved surface arc shape which is the same as the shape of the steel plate spring piece. The thickness is middle thick and two ends are thin. Two ends of the upper reinforcing spring piece are provided with a lug 6. The length of the upper reinforcing spring piece is slightly shorter than that of the first steel plate spring piece.

As shown in fig. 3, the connector 7 includes two symmetrically arranged jaws 8, the upper and lower parts of which are connected by an upper shaft 9 and a lower shaft 10, respectively, to connect the connector as a whole.

As shown in fig. 1, at the time of installation, the lower part of the splint: the two clamping plates are respectively arranged at two sides of the steel plate spring, the lower shaft penetrates through one clamping plate, then penetrates through the other clamping plate after penetrating through the lower part of the second steel plate spring piece 11, and is screwed up through the nut. The upper part of the splint: the spring eye of the upper reinforcing spring piece is placed in the middle of the two clamping plates, the upper shaft penetrates through the spring eye after penetrating through the clamping plate on one side, then penetrates out of the clamping plate on the other side, and is screwed tightly by a nut. The upper part of the connecting piece is fixedly connected with the upper reinforcing spring piece, and the lower part of the connecting piece is naturally contacted with the second steel plate spring piece.

The V-shaped component of the lower reinforcing spring piece is fixedly connected with the steel plate spring through a U-shaped bolt 12. At this point, the entire mechanism has been installed.

As shown in fig. 1, a plurality of steel plate spring strips 15 are provided with a clamp 13, and a V-shaped member is located between the clamp and the center pin shaft and near one end of the center pin shaft.

The plurality of steel plate spring pieces are fixed together through the clamp, and the steel plate spring piece positioned at the top is the first steel plate spring piece 14. The steel plate spring pieces are fixed together through a central pin shaft to form the original vehicle leaf spring.

The principle of the device is that the connecting pieces at two ends are driven downwards when the steel plate spring is supported and stretched, the connecting pieces at two ends are pulled to form the reinforcing spring pieces, the reinforcing spring pieces are arranged, upward reaction force can be formed by the reinforcing spring pieces, the rigidity of the original vehicle steel plate spring is increased, the performance of the original vehicle plate spring can be exerted to the maximum degree, the load of the original vehicle plate spring is increased, the control state and the stability under the load state are improved, the stress distribution is uniform, the dynamic rigidity is greatly reduced, large deflection and small specific stress are obtained, deformation and falling cannot be caused, the structure is prevented from being influenced by the rebound force, the service life is prolonged, and the good running stability of the automobile is ensured.

The device is very simple to install, does not need to detach the original vehicle leaf spring, does not need drilling, cutting or modifying in any form, only needs to lift the automobile chassis to eliminate the pre-tightening of the leaf spring, fixes the upper reinforcing spring piece and the lower reinforcing spring piece at the two ends of the original vehicle leaf spring on the two sides of the vehicle through the connecting piece and the U-shaped bolt, and can be installed and used temporarily and can also be installed and used permanently.

Claims

1. The novel steel plate spring for enhancing the load and the stability comprises a plurality of steel plate spring pieces, wherein the centers of the plurality of steel plate spring pieces are fixed through a central pin shaft, and the steel plate spring piece positioned at the top is a first steel plate spring piece; connecting pieces are arranged at two ends of the steel plate spring, the lower end of each connecting piece is arranged below the second steel plate spring piece, and the upper ends of the two connecting pieces are connected through an upper reinforcing spring piece; the middle parts of the upper reinforcing spring piece and the lower reinforcing spring piece are tightly attached and locked by a U-shaped bolt.

2. The new leaf spring for increasing load and stability as claimed in claim 1, wherein said connecting member comprises symmetrically arranged clamping plates, the upper and lower portions of the two clamping plates are connected by an upper shaft and a lower shaft, the two clamping plates are respectively arranged at both sides of the leaf spring, and the lower shaft passes through the lower portions of the two clamping plates and is located below the second leaf spring.

3. The new steel plate spring for enhancing load and stability as claimed in claim 2, wherein the upper enhancing spring plate is provided with a rolling lug at two ends, the rolling lug is arranged between the two clamping plates, and the rolling lug and the two clamping plates are connected by the upper shaft.

4. The new enhanced load and stability leaf spring as claimed in claim 1 wherein said upper enhanced leaf spring is thin at both ends and thick in the middle.

5. The new enhanced load and stability leaf spring of claim 1 wherein said plurality of leaf spring segments are provided with a clamp, and wherein said V-shaped member is located between said clamp and said central pin near one end of said central pin.