A semi-trailer leaf spring clamping device

Abstract

The utility model provides a kind of semi-trailer leaf spring chucking device, belong to automobile parts technical field, including leaf spring, including the top plate being set in leaf spring top, the fixed assembly being rotatably connected in top plate top, the auxiliary assembly being inserted in top plate surface, chucking assembly being fixedly connected in leaf spring side wall, and the through-hole being set in leaf spring surface;Chucking assembly includes the first clamping plate being clamped in leaf spring side wall.The utility model is through the nesting design of first clamping plate and double second clamping plate, through the elastic buffer of first elastic connecting rod and second elastic connecting rod and the bolt connection of coaxial arrangement first fixed hole, second fixed hole and leaf spring surface through-hole, both ensure clamping force and allow fine adjustment, fixed column is rotatably connected with the threaded hole of leaf spring top, cooperate to realize reliable locking in the first split pin of jack, effectively prevent loosening, the insertion structure of special-shaped column and bottom plate, form the secondary fixing of anti-loosening in combination with slot nut and second split pin.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a leaf spring clamping device for semi-trailers. Background Technology

[0002] With the rapid development of my country's logistics and transportation industry, semi-trailers, as an important means of cargo transportation, are seeing increasing usage and performance requirements. The suspension system of a semi-trailer is a key component in ensuring vehicle stability, safety, and load-bearing capacity, while leaf springs, as the core elastic element in the suspension system, play a vital role in load-bearing and shock absorption.

[0003] However, existing semi-trailer leaf spring fixing devices generally suffer from insufficient clamping stability. Traditional clamps have a simple structure and too few clamping points. Under the long-term complex alternating load conditions of the vehicle, phenomena such as clamping force attenuation and relative displacement between the clamp and the leaf spring are prone to occur. This not only affects the positioning accuracy of the suspension system, but also leads to abnormal wear of the leaf spring. Utility Model Content

[0004] The purpose of this utility model is to provide a semi-trailer leaf spring clamping device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A semi-trailer leaf spring clamping device, comprising A leaf spring includes a top plate disposed on the top of the leaf spring, a fixing assembly rotatably connected to the top of the top plate, an auxiliary assembly inserted into the surface of the top plate, a clamping assembly fixedly connected to the side wall of the leaf spring, and a through hole formed on the surface of the leaf spring. The clamping assembly includes a first clamping plate that is clamped to the side wall of the leaf spring, a first fixing hole that passes through the top of the first clamping plate, and a first elastic connecting rod that is welded to the side wall of the first clamping plate. There are two first clamping plates.

[0006] As a preferred embodiment of the present invention, the clamping assembly further includes a second clamping plate sleeved on the surface of the first clamping plate, a second elastic connecting rod welded to the side wall of the second clamping plate, and a second fixing hole penetrating the top of the second clamping plate, wherein there are two second clamping plates.

[0007] In a preferred embodiment of this utility model, the first fixing hole, the second fixing hole, and the through hole are coaxially arranged, and the first fixing hole, the second fixing hole, and the through hole are connected by bolts.

[0008] As a preferred embodiment of the present invention, the fixing component includes a fixing post rotatably connected to the inner wall of the top plate, an insertion hole formed on the side wall of the fixing post, a fixing groove block rotatably connected to the surface of the fixing post, and a first cotter pin inserted into the inner cavity of the insertion hole.

[0009] In a preferred embodiment of this utility model, the top of the leaf spring has a threaded hole, which is rotatably connected to the fixed post.

[0010] As a preferred embodiment of this utility model, the auxiliary component includes a base plate fixedly connected to the bottom of the leaf spring, a shaped column inserted into the surface of the top plate, a pad sleeved on the side wall of the shaped column, and an insertion port penetrating the side wall of the shaped column.

[0011] As a preferred embodiment of this utility model, the auxiliary component further includes a grooved nut rotatably connected to the side wall of the irregular column, and a second cotter pin inserted into the inner wall of the socket. The irregular columns are symmetrically arranged in two, and the irregular columns are inserted into the base plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The nested design of the first clamping plate and the double second clamping plates, through the elastic buffer of the first elastic connecting rod and the second elastic connecting rod and the bolt connection of the first fixing hole, the second fixing hole and the through hole on the surface of the leaf spring, ensures the clamping force while allowing fine adjustment. The fixed column is rotatably connected to the threaded hole on the top of the leaf spring, and the first cotter pin in the insertion hole achieves reliable locking and effectively prevents loosening. The insertion structure of the irregular column and the base plate, combined with the slotted nut and the second cotter pin, forms a secondary fixation to prevent loosening. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the positions of the through hole and the threaded hole in this utility model; Figure 3 This is a schematic diagram of the fixing component of this utility model; Figure 4 This is a schematic diagram of the auxiliary components of this utility model; Figure 5 This is a schematic diagram of the clamping component of this utility model.

[0014] In the diagram: 101, leaf spring; 102, top plate; 103, fixing assembly; 103a, fixing post; 103b, insertion hole; 103c, fixing slot block; 103d, first cotter pin; 104, auxiliary assembly; 104a, base plate; 104b, irregular-shaped post; 104c, pad; 104d, insertion port; 104e, slotted nut; 104f, second cotter pin; 105, clamping assembly; 105a, first clamping plate; 105b, first fixing hole; 105c, first elastic connecting rod; 105d, second clamping plate; 105e, second elastic connecting rod; 105f, second fixing hole; 106, through hole; 107, threaded hole. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example Reference Figures 1-5 This is an embodiment of the present invention, which provides a semi-trailer leaf spring clamping device, comprising: The leaf spring 101 includes a top plate 102 disposed on the top of the leaf spring 101, a fixing component 103 rotatably connected to the top of the top plate 102, an auxiliary component 104 inserted into the surface of the top plate 102, a clamping component 105 fixedly connected to the side wall of the leaf spring 101, and a through hole 106 formed on the surface of the leaf spring 101. The clamping assembly 105 includes a first clamping plate 105a clamped to the side wall of the leaf spring 101, a first fixing hole 105b passing through the top of the first clamping plate 105a, and a first elastic connecting rod 105c welded to the side wall of the first clamping plate 105a. There are two first clamping plates 105a. The clamping assembly 105 also includes a second clamping plate 105d sleeved on the surface of the first clamping plate 105a, a second elastic connecting rod 105e welded to the side wall of the second clamping plate 105d, and a second fixing hole 105f passing through the top of the second clamping plate 105d. There are two second clamping plates 105d. The first fixing hole 105b, the second fixing hole 105f, and the through hole 106 are coaxially arranged, and the first fixing hole 105b, the second fixing hole 105f, and the through hole 106 are connected by bolts.

[0019] Specifically, the two first clamping plates 105a and the two second clamping plates 105d cooperate with each other, and provide a certain elastic buffer through the first elastic connecting rod 105c and the second elastic connecting rod 105e, which can accommodate the slight deformation of the leaf spring. The first fixing hole 105b, the second fixing hole 105f and the through hole 106 are coaxially arranged and connected by bolts. This connection method is not only firm, but also easy to install and disassemble, and can effectively and securely clamp the leaf spring 101, ensuring the stability and safety of the semi-trailer during operation.

[0020] Furthermore, the fixing assembly 103 includes a fixing post 103a rotatably connected to the inner wall of the top plate 102, an insertion hole 103b opened on the side wall of the fixing post 103a, a fixing groove block 103c rotatably connected to the surface of the fixing post 103a, and a first cotter pin 103d inserted into the inner cavity of the insertion hole 103b; the top of the leaf spring 101 has a threaded hole 107 through it, and the threaded hole 107 is rotatably connected to the fixing post 103a.

[0021] Preferably, the first cotter pin 103d inserted into the socket 103b provides reliable positioning and prevents loosening. The fixing slot block 103c with surface rotation connection further enhances the fixing effect. The threaded hole 107 at the top of the leaf spring 101 is rotatably connected to the fixing post 103a, ensuring the stability of the connection.

[0022] It should be noted that the auxiliary component 104 includes a base plate 104a fixedly connected to the bottom of the leaf spring 101, a shaped post 104b inserted into the surface of the top plate 102, a pad 104c sleeved on the side wall of the shaped post 104b, and an insertion port 104d penetrating through the side wall of the shaped post 104b; the auxiliary component 104 also includes a slotted nut 104e rotatably connected to the side wall of the shaped post 104b, and a second cotter pin 104f inserted into the inner wall of the insertion port 104d. Two shaped posts 104b are symmetrically arranged, and the shaped posts 104b are inserted into the base plate 104a.

[0023] The two symmetrically arranged irregularly shaped columns 104b are inserted into the base plate 104a, providing a stable foundation support for the entire auxiliary assembly 104 and ensuring a reliable connection with the leaf spring 101. The pad 104c, fitted onto the side wall of the irregularly shaped column 104b, provides cushioning and protection, reducing wear between components. The insertion port 104d, penetrating the side wall of the irregularly shaped column 104b, provides an insertion position for the second cotter pin 104f. Combined with the rotatably connected slotted nut 104e, effective fixing and adjustment of the irregularly shaped column 104b can be achieved.

[0024] In use, the leaf spring 101 is first placed in the predetermined position, with the top plate 102 serving as the base mounting surface. Initial fixation is achieved by rotating the fixing post 103a, which is rotatably connected to the inner wall of the top plate 102, to the threaded hole 107 at the top of the leaf spring 101. Then, the first cotter pin 103d in the insertion hole 103b is used for positioning, and the fixing slot block 103c enhances stability and prevents loosening. Simultaneously, symmetrically arranged irregularly shaped posts 104b are inserted into the base plate 104a and into the surface of the top plate 102, with a fitted pad... Plate 104c provides buffer protection, and works with slotted nut 104e and second cotter pin 104f to achieve reliable bottom connection and adjustment. The key locking function is completed by the first clamping plate 105a and the second clamping plate 105d on both sides. They provide deformation buffer through elastic connecting rods 105c and 105e to adapt to the dynamic force of the leaf spring. When the first fixing hole 105b and the second fixing hole 105f are coaxially aligned with the through hole 106, the bolt can be inserted to firmly lock the leaf spring, which not only ensures the connection strength, but also facilitates later maintenance and disassembly.

[0025] In summary, the nested design of the first clamping plate 105a and the double second clamping plates 105d, through the elastic buffering of the first elastic connecting rod 105c and the second elastic connecting rod 105e, and the bolt connection between the coaxially arranged first fixing hole 105b, second fixing hole 105f and the through hole 106 on the surface of the leaf spring 101, ensures clamping force while allowing fine adjustment. The fixing post 103a is rotatably connected to the threaded hole 107 on the top of the leaf spring 101, and is reliably locked with the first cotter pin 103d in the insertion hole 103b, effectively preventing loosening. The insertion structure of the irregular post 104b and the base plate 104a, combined with the slotted nut 104e and the second cotter pin 104f, forms a secondary fixation to prevent loosening.

[0026] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0028] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A leaf spring clamping device for a semi-trailer, characterized in that: include, The leaf spring (101) includes a top plate (102) disposed on the top of the leaf spring (101), a fixing assembly (103) rotatably connected to the top of the top plate (102), an auxiliary assembly (104) inserted into the surface of the top plate (102), a clamping assembly (105) fixedly connected to the side wall of the leaf spring (101), and a through hole (106) formed on the surface of the leaf spring (101). The clamping assembly (105) includes a first clamping plate (105a) clamped to the side wall of the leaf spring (101), a first fixing hole (105b) penetrating the top of the first clamping plate (105a), and a first elastic connecting rod (105c) welded to the side wall of the first clamping plate (105a). There are two first clamping plates (105a).

2. The semi-trailer leaf spring clamping device according to claim 1, characterized in that: The clamping assembly (105) further includes a second clamping plate (105d) sleeved on the surface of the first clamping plate (105a), a second elastic connecting rod (105e) welded to the side wall of the second clamping plate (105d), and a second fixing hole (105f) penetrating the top of the second clamping plate (105d). There are two second clamping plates (105d).

3. The semi-trailer leaf spring clamping device according to claim 2, characterized in that: The first fixing hole (105b), the second fixing hole (105f), and the through hole (106) are coaxially arranged, and the first fixing hole (105b), the second fixing hole (105f), and the through hole (106) are connected by bolts.

4. The semi-trailer leaf spring clamping device according to claim 3, characterized in that: The fixing assembly (103) includes a fixing post (103a) rotatably connected to the inner wall of the top plate (102), an insertion hole (103b) opened on the side wall of the fixing post (103a), a fixing groove block (103c) rotatably connected to the surface of the fixing post (103a), and a first cotter pin (103d) inserted into the cavity of the insertion hole (103b).

5. A semi-trailer leaf spring clamping device according to claim 4, characterized in that: The top of the leaf spring (101) has a threaded hole (107) that is rotatably connected to the fixed post (103a).

6. A semi-trailer leaf spring clamping device according to claim 5, characterized in that: The auxiliary component (104) includes a base plate (104a) fixedly connected to the bottom of the leaf spring (101), a shaped post (104b) inserted into the surface of the top plate (102), a pad (104c) sleeved on the side wall of the shaped post (104b), and an insertion port (104d) penetrating through the side wall of the shaped post (104b).

7. A semi-trailer leaf spring clamping device according to claim 6, characterized in that: The auxiliary component (104) further includes a slotted nut (104e) rotatably connected to the side wall of the irregular column (104b), and a second cotter pin (104f) inserted into the inner wall of the socket (104d). The irregular column (104b) is symmetrically arranged in two, and the irregular column (104b) is inserted into the base plate (104a).

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