CN114110063B

CN114110063B - Laminated notch spring device

Info

Publication number: CN114110063B
Application number: CN202111261370.7A
Authority: CN
Inventors: 徐刚; 郭彤; 张瑞君; 李爱群
Original assignee: Southeast University
Current assignee: Southeast University
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2023-03-10
Anticipated expiration: 2041-10-28
Also published as: CN114110063A

Abstract

The invention discloses a laminated notch spring device, and belongs to the technical field of springs. The device comprises a subsidiary end plate, a main end plate and a universal plate; the secondary end plate and the primary end plate are respectively arranged at two ends of the device; the universal plates are arranged between the secondary end plate and the primary end plate; the secondary end plate, the universal plate and the primary end plate are all made of elastic materials and are arranged in a stacked mode. The laminated notch spring device has the advantages that the design range of rigidity and ultimate deformation is wider than that of other spring structures, and the device is formed by laminating all plates layer by layer, so that the height is not required to be specially customized, the assembly is simple, the maintenance and the replacement are easy, the service life is long, the engineering popularization and application are facilitated, and the laminated notch spring device has the advantages of simple structure, reasonable design and easiness in manufacturing.

Description

Laminated notch spring device

Technical Field

The invention belongs to the technical field of springs, and particularly relates to a laminated notch spring device.

Background

The spring is a force bearing structure of a mechanical product, is widely applied and can provide excellent elastic rigidity and restoring force.

The belleville spring is a washer type spring formed by a metal plate or a forging blank, is a special spring which is conical in the axial direction and bears load, stores certain potential energy after bearing load deformation, and when a bolt is loosened in the occasion of bolt flange connection, the belleville spring releases partial potential energy to keep the pressure between flange connection to meet the sealing requirement.

The coil spring is made of an elastic material formed into a spiral shape, and when the coil spring is unloaded, the coil spring can recover the natural length thereof, and under the condition of stretching or compression, the material (metal wire) can be twisted.

At present, a spring device with enough rigidity, wide limit deformation range and no need of customizing the height is lacked.

Disclosure of Invention

In order to solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a stack slit spring device, including:

the device comprises a son end plate, a mother end plate and a general plate; the secondary end plate and the primary end plate are respectively arranged at two ends of the device; the universal plates are arranged between the secondary end plate and the primary end plate; the secondary end plate, the universal plate and the primary end plate are all made of elastic materials and are arranged in a stacked mode.

The structural form of the spring device is formed by stacking the plates layer by layer, the height does not need to be specially customized when the spring device is actually used, the universal plates with the adaptive quantity are selected, the application range is wide, the maintenance and the replacement are easy, the service life is long, and the spring device is favorable for engineering popularization and application.

According to the laminated cut spring device provided by the embodiment of the invention, optionally, the secondary end plate, the primary end plate and the universal plate are all cylindrical plates with the same outer diameter.

The cylindrical structure is easy to process, and is matched with processing materials such as 65Mn, 50CrVA, 60Si2Mn, 55CrSi and the like, so that good bearing capacity and force transmission effect are realized.

According to the laminated cut spring device of the embodiment of the invention, optionally, the sub end plate comprises:

the first clamping groove is formed in the edge of the stacking end face of the sub-end plate and the universal plate, and is provided with a plurality of grooves which are evenly arranged along the circumferential direction of the sub-end plate.

According to the laminated cut spring device of the embodiment of the invention, optionally, the female end plate comprises:

the first cushion tables are provided with a plurality of bulges which are formed at the stacking end surfaces of the female end plate and the universal plate and are uniformly arranged along the circumferential direction of the female end plate;

the first clamping teeth are protruded from the edge of one end face of each cushion table.

According to the laminated cut spring device of the embodiment of the invention, optionally, the common plate comprises:

the second cushion table is formed at the end face, facing the sub-end plate, of the universal plate in a protruding mode, the number of the second cushion table is matched with that of the clamping grooves, and the second cushion table is uniformly arranged along the circumferential direction of the universal plate;

a second latch, wherein a protrusion of the second latch is formed at the edge of the two end faces of each cushion;

the second clamping groove is formed between the two adjacent cushion platforms and is evenly arranged along the circumferential direction of the universal plate.

In the using process, the latch II of one universal plate is matched and clamped with the slot I of the sub-end plate, the other universal plates are sequentially stacked, the latch II of the latter universal plate is matched and clamped with the slot II of the former universal plate, and the latch I of the female end plate is matched and clamped with the slot II of the last universal plate, so that the laminated notch spring device is formed.

According to the laminated incision spring device provided by the embodiment of the invention, optionally, an included angle between two adjacent clamping grooves, an included angle between two adjacent cushion tables and an included angle between two adjacent clamping grooves are equal.

Through the structure, the sub-end plate, the main end plate and the universal plate are designed in a rotational symmetry mode, the clamping teeth of the adjacent plates can be inserted into the clamping grooves through rotation and insertion during the lamination assembly of the plates, the assembly is convenient, the clamping grooves of the adjacent plates are meshed with the clamping teeth when the spring device bears pressure, the lateral displacement or rotation of the plates is limited from the outer edge, and the stability of the laminated notched spring device is improved.

A stack-up slit spring apparatus according to an embodiment of the present invention may, optionally,

the middle part of the end surface of the sub-end plate is provided with a first inner guide hole in a penetrating way;

the middle part of the end face of the female end plate is provided with a second inner guide hole in a penetrating way;

the middle part of the end face of the universal plate is provided with a third inner guide hole in a penetrating way;

the diameters of the first inner guide hole, the second inner guide hole and the third inner guide hole are the same.

The stack-up slit spring apparatus according to embodiments of the present invention may, optionally,

the first clamping groove is formed in the edge of the outer side of the sub end plate;

the second clamping groove is formed in the edge of the outer side of the universal plate;

the first clamping tooth is formed at the edge of the outer side of the cushion table at a position corresponding to the two clamping grooves;

the second latch is formed at the edge of the outer side of the second cushion table corresponding to the first slot or the second slot.

the first clamping groove is formed in the edge of the inner side of the sub end plate;

the second clamping groove is formed in the edge of the inner side of the universal plate;

the first clamping tooth is formed at the edge of the inner side of the cushion table at a position corresponding to the two clamping grooves;

the second clamping tooth is formed at the edge of the inner side of the second cushion platform corresponding to the first clamping groove or the second clamping groove.

According to the laminated incision spring device provided by the embodiment of the invention, optionally, the first cushion table and the second cushion table are both detachably mounted.

Advantageous effects

Compared with the prior art, the invention at least has the following beneficial effects:

(1) The laminated notch spring device is formed by laminating all the plate pieces layer by layer, does not need to customize the height, has wide application range, easy maintenance and replacement and long service life, and is beneficial to engineering popularization and application;

(2) According to the laminated notch spring device, under the same size, the rigidity and the design range of the limit deformation of the device are superior to those of other spring structures, for example, the limit deformation of a belleville spring is small, and the elastic rigidity of a spiral spring is small;

(3) According to the laminated notched spring device, the plates are rotationally symmetrical, the clamping teeth of the adjacent plates can be inserted into the clamping grooves through rotation and insertion during laminated assembly of the plates, assembly is convenient, the clamping grooves of the adjacent plates are meshed with the clamping teeth when the spring device bears pressure, lateral displacement or rotation of the plates is limited from the outer edge, and stability of the laminated notched spring device is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

FIG. 1 is a schematic view showing a laminated slit spring device of embodiment 1;

FIG. 2 shows a schematic view of the sub-terminal structure of embodiment 1;

FIG. 3 shows a schematic diagram of a female header structure of embodiment 1;

FIG. 4 is a schematic diagram showing a general plate structure of embodiment 1;

FIG. 5 is a schematic view showing the structure of a laminated slit spring device of embodiment 2;

FIG. 6 is a schematic view showing a sub-terminal structure of embodiment 2;

FIG. 7 shows a schematic diagram of a female header structure of embodiment 2;

FIG. 8 is a schematic diagram showing a general plate structure of embodiment 2;

FIG. 9 is a schematic diagram showing a general plate structure of embodiment 3;

FIG. 10 is a schematic view of the deformation of the laminated slit spring arrangement of the present invention when the ends are loaded in compression;

reference numerals:

1. a sub-end plate; 10. an inner guide hole I; 11. a first clamping groove;

2. a female end plate; 20. a second inner guide hole; 21. a first pad table; 22. a first latch;

3. a universal plate; 30. a third inner guide hole; 31. a second cushion table; 32. a second latch; 33. a second clamping groove;

4. a connecting member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "a," "an," "two," and similar referents in the description and claims of this patent application does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another.

Along with the demand of industrial development, higher requirements are put forward on the performance of the spring, and the existing spring devices have various defects, such as a butterfly spring, the stress distribution of the butterfly spring is uniformly decreased from inside to outside, the effect of low stroke and high compensation force can be realized, but the ultimate displacement of the butterfly spring is small and has limitation; as another example, the coil spring has high flexibility and a large deformation range, but has small rigidity and fixed height, and the corresponding height needs to be customized during actual use; therefore, there is a need for a spring device with sufficient rigidity, wide deformation limit range, and no need for a customized height.

Example 1

The laminated notched spring device of the present embodiment, as shown in fig. 1, is formed by stacking a sub-end plate 1 and a mother-end plate 2 respectively disposed at two end portions, and a plurality of common plates 3 disposed between the sub-end plate 1 and the mother-end plate 2, wherein the sub-end plate 1, the common plates 3 and the mother-end plate 2 are made of elastic materials, including but not limited to 65Mn, 50CrVA, 60Si2Mn, 55CrSi, etc., for ensuring good elasticity and bearing capacity between the plates, and the plates are usually made of the same elastic material, or different elastic materials may be used.

In this embodiment, the outer diameters of the sub-end plate 1, the main end plate 2 and the common plate 3 are the same and are all cylindrical, wherein,

as shown in fig. 2, the middle part of the end face of the sub-end plate 1 is provided with an inner guide hole one 10 in a penetrating manner, the outer edge of one end face of the sub-end plate 1 is provided with a plurality of clamping grooves one 11, four clamping grooves one 11 are arranged in the embodiment, each clamping groove one 11 is uniformly arranged along the circumferential direction of the sub-end plate 1, and the included angle between every two adjacent clamping grooves one 11 is ninety degrees;

as shown in fig. 3, the middle of the end face of the female end plate 2 is provided with a second inner guide hole 20 in a penetrating manner, the diameter of the second inner guide hole 20 is the same as that of the first inner guide hole 10, a plurality of first pad platforms 21 are formed on one end face of the female end plate 2, in the embodiment, four pad platforms 21 are provided, each pad platform 21 is uniformly arranged along the circumferential direction of the female end plate 2, the included angle between every two adjacent pad platforms 21 is ninety degrees, in the embodiment, a first latch 22 is formed at the outer edge of the end face of each pad platform 21 in a protruding manner, and the shape of the first latch 22 is matched with that of the first latch 11;

the universal board 3 is as shown in fig. 4, the middle of the end face of the universal board is provided with three inner guide holes 30 in a penetrating mode, the diameter of the three inner guide holes 30 is the same as that of the two inner guide holes 20, a plurality of pad platforms 31 are formed on one end face of the universal board 3, in the embodiment, the pad platforms 31 are four, each pad platform 31 is uniformly arranged along the circumferential direction of the universal board 3, the included angle between every two adjacent pad platforms 31 is ninety degrees, in the embodiment, each pad platform 31 protrudes from the outer edge of the end face of each pad platform 31 to form a latch 32, the shape of each latch 32 is matched with the shape of the first slot 11, the outer edge of the universal board 3 is provided with a plurality of second slots 33, in the embodiment, each second slot 33 is uniformly arranged along the circumferential direction of the universal board 3, the included angle between every two adjacent slots 33 is ninety degrees, each second slot 33 is respectively arranged between two adjacent pad platforms 31, and the shape of each second slot 33 is matched with the shape of the latch 32.

In the use, the latch two 32 of a common plate 3 cooperates the joint with the first 11 of draw-in groove of the end plate 1, and all the other common plates 3 pile up in proper order, and the latch two 32 of the later common plate 3 cooperates the joint with the second 33 of draw-in groove of the preceding common plate 3, and the latch one 22 of female end plate 2 cooperates the joint with the second 33 of draw-in groove of the last common plate 3, forms the stromatolite incision spring assembly of this embodiment from this.

In this embodiment, the son end plate 1, female end plate 2 and general board 3 are the rotational symmetry design, through rotatory, pegging graft when can guaranteeing each plate stromatolite equipment, can insert the draw-in groove with the latch of adjacent plate, convenient assembly, and when spring assembly bore the pressure, the draw-in groove interlock latch of adjacent plate, from each plate lateral displacement of outward flange department restriction or rotation, increased this embodiment stromatolite incision spring assembly's stability.

The stromatolite incision spring assembly of this embodiment, for spring assembly bear the main elastic deformation section when pressurized between the adjacent pad platform two 31 and the draw-in groove two 33 of each general board 3, as shown in fig. 10, main elastic deformation section is located between the adjacent pad platform of both sides, the adjacent pad platform of both sides becomes the fixing support of main elastic deformation section, when spring assembly bears the pressurized, the adjacent pad platform of both sides takes place relative displacement, it produces the bending shear deformation to drive main elastic deformation section, the main elastic deformation section of this embodiment is fan-shaped, rigidity and bearing capacity receive the material, inside and outside footpath size, thickness size factor's influence, can improve its rigidity and bearing capacity by a wide margin through reasonable design, satisfy most of industrial structure demands.

Under the same size proportion, the rigidity and the design range of the limit deformation of the device are wider than those of other spring structures, for example, the limit deformation of a belleville spring is small, the elastic rigidity of a spiral spring is small, and the device is formed by overlapping plates layer by layer, so that the height is not required to be specially customized, the device is simple to assemble, easy to maintain and replace, long in service life and beneficial to engineering popularization and application.

Example 2

The stack slit spring device of the present embodiment is different from embodiment 1 in that:

in the sub-end plate 1, the first clamping groove 11 is formed in the inner edge of one end face of the sub-end plate 1, namely the edge where the hole wall of the first inner guide hole 10 is located, as shown in fig. 6;

in the female end plate 2, the first latch 22 is formed at the inner edge of the end face of the first cushion table 21, namely, at the edge corresponding to the forming position of the first slot 11, as shown in fig. 7;

in the universal plate 3, the second latch 32 is formed at the inner edge of the end face of the second pad table 31, i.e. the edge corresponding to the position where the first slot 11 is formed, and the second slot 33 is formed at the inner edge of the universal plate 3, i.e. the edge where the hole wall of the third inner guide hole 30 is located, as shown in fig. 8;

the stacked and laminated slit spring device is shown in fig. 5, and has the same structure and material design as those of embodiment 1, except that the positions of the first slot 11, the first latch 22, the second latch 32 and the second slot 33 are different.

Example 3

Compared with embodiment 1 or embodiment 2, the laminated notch spring device of the present embodiment is different in that in embodiment 1 or embodiment 2, the first pad table 21 and the female end plate 2 are integrally formed, the second pad table 31 and the universal plate 3 are integrally formed, while in the present embodiment, the first pad table 21 and the female end plate 2 are detachably mounted, and the second pad table 31 and the universal plate 3 are also detachably mounted, as shown in fig. 9, a structural form of detachably mounting the second pad table 31 and the universal plate 3 is shown, mounting holes are formed at corresponding positions on end faces of the second pad table 31 and the universal plate 3, and the second pad table 31 and the universal plate 3 are fixed by passing through the mounting holes through the connecting members 4, which are screws in the present embodiment.

Example 4

The laminated slit spring device of the present embodiment is further improved on the basis of embodiment 1~3, and the thicknesses of the child end plate 1 and the mother end plate 2 are both greater than the thickness of the common plate 3.

The child end plate 1 and the mother end plate 2 of the present embodiment both use circular plates with a certain thickness, which is beneficial to realizing uniform load bearing and force transmission at the end portions.

The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

Claims

1. A laminated notched spring assembly, comprising: the device comprises a son end plate, a mother end plate and a general plate; the secondary end plate and the primary end plate are respectively arranged at two ends of the device; the universal plates are arranged between the secondary end plate and the primary end plate; the secondary end plate, the universal plate and the primary end plate are all made of elastic materials and are stacked;

the secondary end plate, the primary end plate and the universal plate are all cylindrical with the same outer diameter;

the sub-end plate includes: the first clamping grooves are formed in the edges of the stacking end faces of the sub-end plates and the universal plate, and are uniformly arranged along the circumferential direction of the sub-end plates;

the female terminal plate includes: the first pad platforms are formed at the stacking end faces of the female end plate and the universal plate in a protruding mode, and a plurality of the first pad platforms are uniformly arranged along the circumferential direction of the female end plate;

the first clamping teeth are protruded from the edge of one end face of each cushion table;

the universal plate comprises: the second cushion table is formed at the end face, facing the sub-end plate, of the universal plate in a protruding mode, the number of the second cushion table is matched with that of the clamping grooves, and the second cushion table is uniformly arranged along the circumferential direction of the universal plate;

a second latch, wherein the bulge of the second latch is formed at the edge of the two end faces of each cushion platform;

2. A laminated slit spring device as defined in claim 1, wherein: the included angle between two adjacent clamping grooves, the included angle between two adjacent cushion tables and the included angle between two adjacent clamping grooves are equal.

3. A laminated slit spring device as defined in claim 2, wherein:

4. A stack-up slitting spring arrangement according to claim 2 or 3, characterized in that:

the second clamping tooth is formed at the edge of the outer side of the second cushion platform corresponding to the first clamping groove or the second clamping groove.

5. A laminated slit spring device as defined in claim 3, wherein:

6. A laminated notched spring assembly as claimed in any one of claims 1~3 wherein: the first cushion table and the second cushion table are detachably mounted.