CN210050233U

CN210050233U - Improved special-shaped snake spring

Info

Publication number: CN210050233U
Application number: CN201920957355.8U
Authority: CN
Inventors: 徐建坤; 江浩
Original assignee: JIAXING TAIEN SPRINGS Co Ltd
Current assignee: JIAXING TAIEN SPRINGS Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-02-11
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses an improvement type dysmorphism snake spring, including short monomer (1), adapter sleeve (2), rotation axis (3), first monomer (9) and second monomer (10), rotation axis (3) divide into first rotator (7) and second rotator (8) by the centre, first rotator (7) are provided with the recess with the contact surface of second rotator (8), second rotator (8) are provided with the plush copper that can insert the recess with the contact surface of first rotator (7), adapter sleeve (2) are provided with two connection monomers, connection monomer's the equal indent of upper and lower surface forms connector (5). An improvement type dysmorphism snake spring, through short monomer, first monomer, the free interconnect of second, can assemble into different length to can rotate, satisfy manifold user demand, pass the couple with the quarter butt after the equipment, further strengthen the intensity of whole connector.

Description

Improved special-shaped snake spring

Technical Field

The utility model relates to a snake spring field, in particular to improvement type dysmorphism snake spring.

Background

The snake spring is an important component in the sofa structure, is also called as an S spring and a tension spring, has tensile property because the shape is similar to a letter S, is frequently applied to a coupler in industry, and is a metal with advanced structure. It relies on a serpentine spring leaf to transmit torque. The serpentine spring coupling is the most advanced shaft coupling transmission component in the international mechanical field at present and is also a very general shaft coupling transmission component, and the main structure of the serpentine spring coupling consists of two half couplings, two half outer covers, two sealing rings and a serpentine spring piece. A snake spring is embedded into tooth grooves of two half couplings to transmit torque, and a snake spring piece is embedded into the tooth grooves of the two half couplings to realize the linkage of a driving shaft and a driven shaft. During the operation, it drives the driven end to lean on the axial effort of initiative end tooth face snake spring, transmits the moment of torsion, so avoided resonance phenomenon to take place to a great extent, and the reed produced elasticity variable when transmitting the moment of torsion makes mechanical system can obtain better damping effect, and its average damping rate reaches more than 36%, and the snake type spring coupling tooth-type is the curve type: when the load is small, the straight line part of the serpentine spring is basically parallel to the coupled axis; when the load is increased, the deformation of the serpentine spring is increased, the contact cambered surface with the teeth is also increased, the distance between the serpentine spring and the tooth contact point is shorter and shorter, the rigidity is increased, the relative rotation angle of the two half couplers and the transmitted torque are in a nonlinear relation, and the variable-rigidity serpentine spring coupler belongs to a variable-rigidity serpentine spring coupler. The linear tooth profile is convenient to process and low in cost, but is only suitable for working conditions with small transmission torque variation. The curve tooth profile coupling is suitable for the operating condition that torque change is great and positive and negative rotation, and have better cushioning effect, but curve tooth profile manufacturability is relatively poor, and manufacturing cost is higher, in actual production, the snake spring monomer only adopts squarely, in the corner of square connection, do not set up the strengthening rib, after long-time reciprocating motion of this part, elastic fatigue takes place easily, cause the fracture, current snake spring all is the fixed integration cast molding of length, unable interconnect between the monomer, and the snake spring after the casting can't be crooked, can only become crooked molding through casting.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an improved special-shaped snake spring, which can effectively solve the problems of the prior art.

In order to solve the above problem, the utility model discloses the technical scheme who takes does:

an improved special-shaped snake spring comprises a short monomer, a connecting sleeve, a rotating shaft, a first monomer and a second monomer, wherein the rotating shaft is divided into a first rotating body and a second rotating body in the middle, a groove is formed in the contact surface of the first rotating body and the second rotating body, a raised head capable of being inserted into the groove is arranged on the contact surface of the second rotating body and the first rotating body, the connecting sleeve is provided with two connecting monomers, the upper surface and the lower surface of each connecting monomer are recessed inwards to form a connecting port, a fixing body is arranged on the opposite surface between the two connecting monomers and is fixedly connected with each other, one end of the short monomer is fixedly connected onto the first rotating body, the other end of the short monomer is detachably connected into the connecting port, one end of the first monomer is fixedly connected onto the second rotating body, the other end of the second monomer is fixedly connected onto the first rotating body corresponding to the second rotating body connected with the first monomer, the other end of the second single body is detachably arranged on the other connecting sleeve.

Preferably, the short monomer, the first monomer and the second monomer are one of circular arc, rectangle, U-shape and broken line.

Preferably, the first rotating body and the second rotating body can rotate mutually to drive the short monomer or the first monomer or the second monomer connected with the first rotating body to rotate mutually, and the rotating angle is 0-60 degrees.

Preferably, the lowest part of the first monomer is internally and fixedly provided with a hook which is square or arc.

Preferably, the inner side surface of the connecting port is provided with a convex pattern.

Preferably, the surfaces of the short monomer, the first monomer and the second monomer are coated with the antirust paint.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses the short monomer that sets up, first monomer, the second monomer is inequality monomer, can pass through the rotation axis, the adapter sleeve splices together according to actual needs, can constitute different length, satisfy multiple user demand, snake spring after the equipment can be in certain angle bending into arch, the actual scene has been richened, short monomer, first monomer, the second monomer can be convex, it is square, the dogleg shape, the U type, the actual mill casting in-process can be through different user demand, cast into different shapes, the commonality is strong, service prospect is wide, the inboard of connector is provided with the burr, can increase the inner wall and insert free frictional force, the installation is more firm, monomer, first monomer, the free surperficial all coating of second has the anti-rust paint, enable the product to have longer life.

Drawings

Fig. 1 is a schematic view of the main viewing position of the present invention;

FIG. 2 is a schematic view showing the position relationship among the connecting sleeve, the connecting port and the fixing body of the present invention;

fig. 3 is a schematic view of the position relationship among the rotating shaft, the first rotating body and the second rotating body according to the present invention;

fig. 4 is a schematic view of the main viewing position of the single body of the present invention.

In the figure: 1. a short monomer; 2. connecting sleeves; 3. a rotating shaft; 4. hooking; 5. a connecting port; 6. a fixed body; 7. a first rotating body; 8. a second rotating body; 9. a first monomer; 10. a second monomer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Specific example 1:

as shown in fig. 1, an improved type of special-shaped snake spring comprises a short single body 1, a connecting sleeve 2, a rotating shaft 3, a first single body 9 and a second single body 10, wherein the rotating shaft 3 is divided into a first rotating body 7 and a second rotating body 8 from the middle, a groove is arranged on the contact surface of the first rotating body 7 and the second rotating body 8, a raised head capable of being inserted into the groove is arranged on the contact surface of the second rotating body 8 and the first rotating body 7, the connecting sleeve 2 is provided with two connecting single bodies, the upper surface and the lower surface of each connecting single body are both concave to form a connecting port 5, a fixing body 6 is arranged on the opposite surface between the two connecting single bodies and is fixedly connected with each other, one end of the short single body 1 is fixedly connected to the first rotating body 7, the other end is detachably connected to the connecting port 5, one end of the first single body 9 is, one end of the second single body 10 is fixedly connected to the first rotating body 7 corresponding to the second rotating body 8 connected with the first single body 9, and the other end of the second single body 10 is detachably mounted on the other connecting sleeve 2.

The short monomer 1, the first monomer 9 and the second monomer 10 are arc-shaped; the first rotating body 7 and the second rotating body 8 can rotate mutually to drive the short monomer 1 or the first monomer 9 or the second monomer 10 connected with the first rotating body to rotate mutually, and the rotating angle is 45 degrees; the lowest part of the first monomer 9 is internally and fixedly provided with a hook 4, and the hook 4 is square; the inner side surface of the connecting port 5 is provided with a convex pattern; the surfaces of the short monomer 1, the first monomer 9 and the second monomer 10 are coated with antirust paint.

The utility model discloses an application principle does: according to the requirement of actual use length, one end of a plurality of short monomers 1 is inserted into a connecting port 5 in a connecting sleeve 2, the friction force between the short monomers 1 and the convex patterns arranged on the inner wall of the connecting port 5 can be increased, the connecting effect is firmer, one end of a second monomer 10 is inserted into the other connecting port 5 in the connecting sleeve 2, the short monomers 1, the first monomer 9 and the second monomer 10 form a proper length, a first rotating body 7 and a first rotating body 8 can rotate mutually to respectively drive the short monomers 1, the first monomer 9 and the second monomer 10 connected with the first rotating body to rotate, various use scenes are met, when the number of the connected monomers is large enough, a long rod can pass through a plurality of hooks 4 to increase the internal strength of the whole connecting body and enable the connecting body to bear larger external force, the outer surfaces of the short monomers 1, the first monomer 9 and the second monomer 10 are coated with antirust paint, the service life is longer.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an improvement type dysmorphism snake spring, includes short monomer (1), adapter sleeve (2), rotation axis (3), first monomer (9) and second monomer (10), its characterized in that: the rotating shaft (3) is divided into a first rotating body (7) and a second rotating body (8) from the middle, a contact surface of the first rotating body (7) and the second rotating body (8) is provided with a groove, a contact surface of the second rotating body (8) and the first rotating body (7) is provided with a raised head capable of being inserted into the groove, the connecting sleeve (2) is provided with two connecting monomers, the upper surface and the lower surface of each connecting monomer are recessed inwards to form a connecting port (5), a fixing body (6) is arranged on the opposite surface between the two connecting monomers and is fixedly connected with each other, one end of the short monomer (1) is fixedly connected onto the first rotating body (7), the other end of the short monomer is detachably connected into the connecting port (5), one end of the first monomer (9) is fixedly connected onto the second rotating body (8), and the other end of the first rotating body (7) is fixedly connected onto the other rotating, one end of the second single body (10) is fixedly connected to the first rotating body (7) corresponding to the second rotating body (8) connected with the first single body (9), and the other end of the second single body (10) is detachably mounted on the other connecting sleeve (2).

2. A modified shaped coil spring as claimed in claim 1, wherein: the short monomer (1), the first monomer (9) and the second monomer (10) are one of circular arc, rectangle, U-shaped and broken line type.

3. A modified shaped coil spring as claimed in claim 1, wherein: the first rotating body (7) and the second rotating body (8) can rotate mutually to drive the short monomer (1) or the first monomer (9) or the second monomer (10) connected with the first rotating body to rotate mutually, and the rotating angle is 0-60 degrees.

4. A modified shaped coil spring as claimed in claim 1, wherein: the lowest part of the first monomer (9) is inwards fixedly provided with a hook (4), and the hook (4) is square or arc-shaped.

5. A modified shaped coil spring as claimed in claim 1, wherein: the inner side surface of the connecting port (5) is provided with a convex pattern.

6. A modified shaped coil spring as claimed in claim 1, wherein: the surfaces of the short monomer (1), the first monomer (9) and the second monomer (10) are coated with antirust paint.