CN218536251U

CN218536251U - Connecting device

Info

Publication number: CN218536251U
Application number: CN202221834929.0U
Authority: CN
Inventors: 付小仔; 邓清华; 廖程亮; 张磊; 叶炳火; 肖波峰; 曹珉; 曾韶能; 张奇
Original assignee: Jiangxi Isuzu Motors Co Ltd
Current assignee: Jiangxi Isuzu Motors Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-02-28
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses a connecting device, which is used for connecting an auxiliary spring and a main spring and is characterized in that the connecting device comprises a first fixing component fixedly connected with the auxiliary spring, a connecting piece arranged on the first fixing component and a second fixing component arranged on the connecting piece; the first fixing assembly comprises a first bracket and a second bracket in clearance fit with the first bracket, the first bracket and the second bracket enclose a clamping space, and the auxiliary spring penetrates through the clamping space; the second fixing assembly comprises a first fixing piece and a second fixing piece movably connected with the first fixing piece, and the first fixing piece sequentially penetrates through the main spring and the connecting piece; wherein, the connecting piece respectively with locate the second support of connecting piece up end, locate the second mounting fixed connection in the connecting piece. The utility model discloses guarantee vice spring structural integrity and fiber material's intensity, make main spring and vice spring effective connection, avoid main spring and vice spring phenomenon that the dislocation appears.

Description

Connecting device

Technical Field

The utility model relates to a leaf spring processing technology field, concretely relates to connecting device.

Background

The automobile plate spring is a traditional elastic element in an automobile suspension system, and is widely applied due to the advantages of good reliability, simple structure, short manufacturing process flow, low cost, greatly simplified structure and the like.

In the leaf spring development process, generally through central trompil between leaf spring piece and the piece, adopt the bolt to pass different reed centre holes and realize connecting, can realize establishing ties between the reed, prevent to take place the dislocation when the leaf spring receives longitudinal force, but vice spring center part punches simultaneously and can influence the intensity of leaf spring, and shrink leaf spring center width also can influence the commonality.

However, as some novel composite plate springs appear in succession, the punching of the composite plate spring in the center easily causes the internal structure of the composite material to change, stress concentration and damage, so that a plate spring sheet connecting device which can prevent dislocation without punching in the center of the composite auxiliary spring is urgently needed.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a connecting device for connect combined material vice spring and traditional main spring, aim at providing one kind and realize the device of being connected with main spring and vice spring under the condition that combined material vice spring does not punch, and guarantee that assembly structure mounting means is unchangeable, avoid appearing receiving the phenomenon that longitudinal force main spring and vice spring take place the dislocation.

In order to achieve the above object, the present invention provides a connecting device for connecting an auxiliary spring and a main spring, wherein the connecting device comprises a first fixing component fixedly connected to the auxiliary spring, a connecting component arranged on the first fixing component, and a second fixing component arranged on the connecting component;

the first fixing assembly comprises a first bracket and a second bracket in clearance fit with the first bracket, the first bracket and the second bracket enclose a clamping space, and the auxiliary spring penetrates through the clamping space;

the second fixing component comprises a first fixing piece and a second fixing piece movably connected with the first fixing piece, and the first fixing piece is sequentially arranged on the main spring and the connecting piece in a penetrating manner;

the connecting piece is fixedly connected with a second support arranged on the upper end face of the connecting piece and a second fixing piece arranged in the connecting piece.

In summary, according to the above-mentioned connecting device, the first fixing assembly, the connecting member disposed below the first fixing assembly, and the fixing member disposed in the connecting member are arranged to effectively connect the main spring and the auxiliary spring without drilling holes in the composite material. The auxiliary spring is fixed in a clamping space formed by the first support and the second support in a surrounding mode, the second fixing part is fixed in the connecting piece, the first fixing part penetrates through the main spring and is movably connected to the second fixing part, and then the main spring and the auxiliary spring are fixed on the upper portion and the lower portion of the connecting piece in a mode that the auxiliary spring is not punched, and the integrity of the structure of the auxiliary spring is guaranteed.

According to one aspect of the technical scheme, a plurality of positioning pieces penetrating through the connecting piece are arranged on one side, facing the connecting piece, of the lower end face of the second support, and through holes for containing the first fixing pieces are formed among the positioning pieces.

According to one aspect of the technical scheme, the connecting piece is provided with a plurality of through holes for containing the second support positioning pieces, the through hole in the center of the connecting piece is a regular polygon, and the positioning pieces are embedded in the through holes of the connecting piece.

According to one aspect of the technical scheme, convex limiting plates are arranged on two sides of the second bracket beyond one side of the first bracket, and concave limiting plates are arranged on two sides of the first bracket towards one side of the second bracket;

the depth of the grooves of the concave limiting plates on the two sides of the first support is set to be larger than the height of the boss of the convex limiting plate of the second support.

According to one aspect of the technical scheme, the second fixing piece is a regular polygon nut, and the second fixing piece is embedded in a regular polygon through hole in the center of the connecting piece.

According to one aspect of the technical scheme, elastic gaskets are arranged between the upper end face and the lower end face of the auxiliary spring and the first support and between the upper end face and the lower end face of the auxiliary spring and the second support.

According to one aspect of the above technical solution, a rigid gasket is further fixed under the main spring through the first fixing member.

According to an aspect of the above technical solution, the main spring includes a first main spring and a second main spring disposed on the first main spring.

According to one aspect of the above technical solution, the first main spring and the second main spring are fixedly connected through a locking member.

According to one aspect of the above technical scheme, two ends of the first main spring are further provided with a lug.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a connecting device of a composite plate spring and a conventional plate spring according to the present invention;

FIG. 2 is a schematic structural view of the main spring assembly of FIG. 1;

FIG. 3 is a schematic view of the structure of the eye of FIG. 1;

FIG. 4 is a schematic structural view of the connector of FIG. 1;

fig. 5 is a schematic structural view of the second bracket in fig. 1.

Description of the components in the drawings:

the spring comprises a first fixing piece 11, a second fixing piece 12, a rigid gasket 20, a first main spring 31, a second main spring 32, a locking piece 40, a rolling lug 50, an outer steel pipe bushing 51, rubber 52, an inner steel pipe bushing 53, a composite auxiliary spring 60, a first support 71, a second support 72, a connecting piece 80 and an elastic gasket 90.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 3, the main spring is composed of a first main spring 31 and a second main spring 32, the first main spring 31 is disposed on the second main spring 32, the first main spring 31 and the second main spring 32 are provided with through holes at the central portions thereof, and have the same size and corresponding positions, two ends of the first main spring 31 are bent upward to form a rolling lug 50, the first main spring 31 and the second main spring 32 are fixed by locking members 40 at two ends, an outer steel pipe bushing 51 and an inner steel pipe bushing 53 are embedded in the inner surface of one rolling lug 50, and rubber 52 is filled between the outer steel pipe bushing 51 and the inner steel pipe bushing 53.

As shown in fig. 2, the rigid gasket 20, the first main spring 31, and the second main spring 32 are provided with through holes at the central portions, the first fixing member 11 sequentially penetrates through the central through holes of the rigid gasket 20, the first main spring 31, and the second main spring 32 from bottom to top, the first fixing member 11 and the second fixing member 12 are rotatably connected to lock the main spring to the rigid gasket 20, and the rigid gasket 20 is fixed to the lower surface of the second main spring 32 to protect the main spring.

Referring to fig. 4, the connecting member 80 is disposed between the first main spring 31 and the second bracket 72, the connecting member 80 is provided with 3 through holes, a regular hexagonal through hole is disposed at the center, and a circular through hole is disposed on each of the left and right sides of the regular hexagonal through hole.

In the present embodiment, the aperture of the regular hexagon is slightly larger than the second fixing member 12, for accommodating the second fixing member 12. After the main spring is locked by the second fixing member 12, the top end portion of the first fixing member 11 penetrates through the top end surface of the second fixing member 12 and enters the second bracket 72. The connecting piece 80 is embedded with the second fixing piece 12 through the six-deformation through hole in the center, and the connecting piece 80 is fixed on the upper surface of the main spring through a regular hexagon structure and cannot move in the horizontal direction, so that the limiting function is achieved.

As shown in fig. 5, a circular through hole is formed in the center of the second bracket 72, the circular through hole is sized to receive the top end of the first fixing member 11, and circular positioning members are disposed on the left and right sides of the circular through hole toward one side of the connecting member 80. The top end of the first fixing part 11 penetrates through the end faces of the second fixing part 12 and the connecting part 80, enters the circular through hole in the central part of the second bracket 72, and the top end does not exceed the upper end face of the second bracket 72. The second bracket 72 is embedded into the two circular through holes of the connecting piece 80 through the two downward circular positioning pieces, and the structural design of the embedding of the positioning pieces and the through holes effectively prevents the second bracket 72 from rotating in the connecting piece 80, so that the limiting effect is achieved.

Two sides of the second bracket 72 extend upwards to form convex limiting plates, two sides of the first bracket 71 extend downwards to form concave limiting plates, the composite auxiliary spring 60 is placed in a space formed by the convex limiting plates of the second bracket 72, an elastic gasket 90 is placed between the composite auxiliary spring 60 and the second bracket 72, the first bracket 71 is buckled on the second bracket 72 through clearance fit of the convex limiting plates and the concave limiting plates, and similarly, an elastic gasket 90 is placed between the composite auxiliary spring 60 and the first bracket 71. The elastic washer 90 can play a good role in buffering, and can reduce the abrasion between the composite auxiliary spring 60 and the first fixing component, thereby reducing the material loss. The tolerance between the male and female stopper plates is set to ± 0.5mm, and when the plate spring is pressed, the pressing force applied to the first bracket 71 is transmitted to the second bracket 72 and then to the main spring.

In conclusion, the glass fiber auxiliary spring is provided with the hole at the central part thereof to be connected with the main spring in the traditional way, and the cracking phenomenon appears near the central hole in both the bench and the road test, which indicates that the central hole can cause the damage of the composite material. The event the utility model discloses a fixed vice spring of first fixed subassembly, the fixed main spring of subassembly is fixed to the second, recycles the connecting piece and couples together first fixed subassembly and the fixed subassembly of second, can't misplace on the connecting piece when guaranteeing the fixed subassembly atress of first fixed subassembly and second, has guaranteed the integrality of combined material vice spring structure simultaneously, avoids punching at its central point, does not reduce combined material's intensity, has promoted the reliability of vice spring.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A connecting device is used for connecting an auxiliary spring and a main spring and is characterized by comprising a first fixing component fixedly connected with the auxiliary spring, a connecting piece arranged on the first fixing component and a second fixing component arranged on the connecting piece;

the first fixing assembly comprises a first support and a second support in clearance fit with the first support, a clamping space is enclosed by the first support and the second support, and the auxiliary spring penetrates through the clamping space;

2. The connecting device according to claim 1, wherein a plurality of positioning members are disposed on a side of the lower end surface of the second bracket facing the connecting member, and a through hole for accommodating the first fixing member is disposed between the positioning members.

3. The connecting device according to claim 1, wherein the connecting member is provided with a plurality of through holes for accommodating the second bracket positioning members, the through hole formed in the center of the connecting member is a regular polygon, and the positioning members are embedded in the through holes of the connecting member.

4. The connecting device according to claim 1, wherein convex limiting plates are arranged on two sides of the second bracket facing one side of the first bracket, and concave limiting plates are arranged on two sides of the first bracket facing one side of the second bracket;

5. The connecting device as claimed in claim 1, wherein the second fixing member is a regular polygonal nut, and the second fixing member is embedded in a regular polygonal through hole in the center of the connecting member.

6. The connecting device according to claim 1, wherein elastic washers are provided between the upper and lower end surfaces of the auxiliary spring and the first and second brackets.

7. The connecting device of claim 1 wherein a rigid spacer is further secured under the main unsprung member by the first securing member.

8. The connection device of claim 1, wherein the main spring comprises a first main spring leaf and a second main spring leaf disposed on the first main spring leaf.

9. The connector of claim 8, wherein the first and second main springs are fixedly connected by a locking member.

10. The connection device of claim 8, wherein both ends of the first main spring are further provided with a rolling lug.