Front lifting lug assembly of steel plate spring

Abstract

The utility model relates to a front lifting lug assembly of a steel plate spring, which belongs to the technical field of steel plate springs and comprises two mounting shells, a fixing plate is fixed between the two mounting shells, a support is attached to the upper surface of the fixing plate, and a lifting lug body is attached to the lower surface of the fixing plate. And a mounting mechanism for fixing the bracket and the lifting lug body is arranged in the mounting shell. According to the front lifting lug assembly of the steel plate spring, through the mounting mechanism, a first limiting rod is inserted into a first limiting groove, a second limiting rod is inserted into a second limiting groove, a rotating handle is rotated, a threaded rod is driven to rotate, a moving block is made to move, meanwhile, a pushing block, a moving plate and a clamping rod are pushed to move together and extrude a spring body, and the clamping rod is clamped into a clamping groove; the movable plate drives the connecting plate and the inserting block to move together at the same time, so that the inserting block is clamped into the inserting groove, the support and the lifting lug body are installed and fixed, meanwhile, the support and the lifting lug body are conveniently and rapidly disassembled, operation is convenient, and replacement is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of leaf springs, in particular to a front lifting ear assembly of a leaf spring. Background Art

[0002] The main function of the left front hanging ear assembly of a bus leaf spring is to bear the load for installing the leaf spring. Therefore, the strength of the left front hanging ear assembly of a bus leaf spring directly affects the load-bearing capacity and safety of the car. The left front hanging ear assembly of a bus leaf spring has various structures, some simple and some complex.

[0003] For example, a Chinese patent (publication number: CN205059115U) discloses a left front lifting ear assembly for a passenger car leaf spring, including a lifting ear, a bracket, two connecting plates and two reinforcing ribs, wherein the two connecting plates are symmetrically arranged on both sides of the bracket, and the two reinforcing ribs are respectively welded to the middle of the connecting plates. The lifting ear is located below the bracket, and the upper surface of the lifting ear is respectively welded to the reinforcing rib and the connecting plate. This structure can ensure that the structural strength is fully utilized and the strength is satisfied. The entire lifting ear is evenly stressed, the assembly is lighter, and the manufacturing cost is lower.

[0004] The above-mentioned passenger car leaf spring left front lifting ear assembly still has certain shortcomings. The connecting plate is symmetrically welded to the upper surface of the lifting ear, and the reinforcing rib is arranged in the middle of the connecting plate. Not only the whole structure is lighter and the manufacturing cost is reduced, but also the strength of the lifting ear is ensured to meet the requirements. However, long-term practical use will cause different degrees of wear to the lifting ear and the bracket. Once replacement is needed, the entire part needs to be replaced, which is not only time-consuming but also increases economic expenses. Therefore, a leaf spring front lifting ear assembly is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a front lifting ear assembly of a leaf spring, which has the advantages of convenient disassembly and assembly, and solves the problem that the existing front lifting ear assembly of a leaf spring is inconvenient to disassemble and assemble.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a front lifting ear assembly of a leaf spring, comprising two mounting shells, a fixing plate is fixed between the two mounting shells, a bracket is attached to the upper surface of the fixing plate, a lifting ear body is attached to the lower surface of the fixing plate, and a mounting mechanism for fixing the bracket and the lifting ear body is provided inside the mounting shell;

[0007] The mounting mechanism includes a moving component and a limiting component, the moving component includes a threaded hole opened on the upper surface of the mounting shell, the internal thread of the threaded hole is connected to a threaded rod, the lower surface of the threaded rod is rotatably connected to a moving block through a bearing seat, the opposite sides of the two moving blocks are abutted with push blocks, the opposite sides of the two push blocks are fixed with moving plates, and the lower surface of the moving plate is fixed with a connecting plate.

[0008] Furthermore, the limit assembly includes a plurality of telescopic rods fixed to opposite sides of the inner cavities of the two mounting shells, the outer surfaces of the telescopic rods are sleeved with spring bodies, a plurality of clamping rods are fixed to opposite sides of the two movable plates, the limit assembly also includes a plurality of clamping slots opened on the front and rear sides of the bracket, plug blocks are fixed to opposite sides of the two connecting plates, the limit assembly also includes two bottom grooves opened on the upper surface of the lifting ear body, and a slot connected to the bottom groove is opened inside the lifting ear body.

[0009] Furthermore, a slider is fixed on one side of the two moving blocks facing away from each other, a slide groove is provided on one side of the inner cavities of the two mounting shells facing away from each other, and the slider is slidably connected to the inside of the slide groove.

[0010] Furthermore, the moving block and the pushing block are both trapezoidal, and a rotating handle is fixed on the upper surface of the threaded rod.

[0011] Furthermore, the card rod is slidably connected to the inside of the card slot, and the insert block is slidably connected to the inside of the slot.

[0012] Furthermore, the bracket and the ear body are both U-shaped, a plurality of first limiting rods are fixed to the lower surface of the bracket, and a plurality of second limiting rods are fixed to the upper surface of the ear body.

[0013] Furthermore, a plurality of first limiting grooves are formed on the upper surface of the fixing plate, a plurality of second limiting grooves are formed on the lower surface of the fixing plate, the first limiting rod is slidably connected to the inside of the first limiting groove, and the second limiting rod is slidably connected to the inside of the second limiting groove.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The front lifting ear assembly of the leaf spring is installed by means of the installation mechanism, the first limiting rod is inserted into the first limiting groove, the second limiting rod is inserted into the second limiting groove, the rotating handle is turned to drive the threaded rod to rotate, so that the moving block moves, and at the same time, the push block, the moving plate and the clamping rod are pushed to move together and squeeze the spring body, so that the clamping rod is clamped into the clamping groove, and the moving plate simultaneously drives the connecting plate and the inserting block to move together, so that the inserting block is clamped into the slot, the bracket and the lifting ear body are installed and fixed, and at the same time, the bracket and the lifting ear body are convenient to quickly disassemble, the operation is convenient, and the replacement is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional appearance diagram of the utility model;

[0017] Figure 2 It is the left side diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the installation mechanism of the utility model.

[0019] In the figure: 1 mounting shell, 2 lifting ear body, 3 fixing plate, 4 bracket, 5 mounting mechanism, 501 threaded hole, 502 threaded rod, 503 moving block, 504 pushing block, 505 moving plate, 506 clamping rod, 507 clamping slot, 508 connecting plate, 509 plug-in block, 510 bottom slot, 511 slot, 512 telescopic rod, 513 spring body. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 In this embodiment, a front lifting ear assembly of a leaf spring includes two mounting shells 1, a fixing plate 3 is fixed between the two mounting shells 1, a bracket 4 is attached to the upper surface of the fixing plate 3, and a lifting ear body 2 is attached to the lower surface of the fixing plate 3. An installation mechanism 5 for fixing the bracket 4 and the lifting ear body 2 is provided inside the mounting shell 1. The installation mechanism 5 facilitates the quick disassembly and assembly of the bracket 4 and the lifting ear body 2 at the same time, and only the bracket 4 or the lifting ear body 2 can also be replaced.

[0022] Among them, the bracket 4 and the ear body 2 are both U-shaped, a plurality of first limit rods are fixed to the lower surface of the bracket 4, a plurality of second limit rods are fixed to the upper surface of the ear body 2, a plurality of first limit grooves are opened on the upper surface of the fixing plate 3, a plurality of second limit grooves are opened on the lower surface of the fixing plate 3, the first limit rod is slidably connected to the inside of the first limit groove, the second limit rod is slidably connected to the inside of the second limit groove, and the ear body 2 and the bracket 4 are installed and fixed by the fixing plate 3.

[0023] See also Figure 3In order to facilitate the disassembly and assembly of the ear body 2 and the bracket 4, the installation mechanism 5 in this embodiment includes a moving component and a limiting component. The moving component includes a threaded hole 501 opened on the upper surface of the installation shell 1, and the internal thread of the threaded hole 501 is connected to a threaded rod 502. The lower surface of the threaded rod 502 is rotatably connected to a moving block 503 through a bearing seat. The threaded rod 502 rotates in the threaded hole 501 to drive the moving block 503 to move. The opposite sides of the two moving blocks 503 are abutted with push blocks 504. The opposite sides of the two push blocks 504 are fixed with moving plates 505. The moving blocks 503 move, driving the push blocks 504 and the moving plates 505 to move simultaneously. The lower surface of the moving plate 505 is fixed with a connecting plate 508.

[0024] The limiting assembly includes a plurality of telescopic rods 512 fixed to opposite sides of the inner cavities of the two mounting shells 1, and a spring body 513 is sleeved on the outer surface of the telescopic rod 512, and the spring body 513 is made to move linearly through the telescopic rod 512. The opposite sides of the front and rear groups of telescopic rods 512 are respectively fixed to opposite sides of the two movable plates 505, and the movable plates 505 are made to move linearly through the telescopic rod 512. A plurality of clamping rods 506 are fixed to opposite sides of the two movable plates 505, and the limiting assembly also includes a plurality of clamping slots 507 opened on the front and rear sides of the bracket 4, and an insert block 509 is fixed to opposite sides of the two connecting plates 508, and the limiting assembly also includes two bottom grooves 510 opened on the upper surface of the lifting ear body 2, and a slot 511 connected to the bottom groove 510 is opened inside the lifting ear body 2.

[0025] Among them, a slider is fixed on the opposite side of the moving block 503, and a sliding groove is opened on the opposite side of the inner cavity of the two mounting shells 1. The slider is slidably connected to the inside of the sliding groove to increase the stability of the moving block 503 when moving and prevent the moving block 503 from rotating with the threaded rod 502.

[0026] In addition, the moving block 503 and the pushing block 504 are both trapezoidal, which makes it convenient to push the pushing block 504 through the moving block 503. A rotating handle is fixed on the upper surface of the threaded rod 502 to facilitate the rotation of the threaded rod 502. The clamping rod 506 is slidably connected to the inside of the clamping slot 507 for fixing the bracket 4. The insert block 509 is slidably connected to the inside of the slot 511 for fixing the ear body 2.

[0027] In addition, the opposite sides of the front and rear spring bodies 513 are respectively fixed to the opposite sides of the inner cavities of the two mounting shells 1, and the opposite sides of the front and rear spring bodies 513 are respectively fixed to the opposite sides of the two movable plates 505. When the movable block 503 moves upward, the movable plate 505 will be reset under the action of the spring body 513, driving the locking rod 506 away from the locking slot 507, making it convenient to disassemble the bracket 4.

[0028] It should be noted that the front and rear telescopic rods 512 include rod sleeves fixed to opposite sides of the inner cavities of the two mounting shells 1, sliding rods slidably connected to the inside of the rod sleeves, connecting blocks fixed to the lower surface of the sliding rods, connecting grooves opened on the lower surface of the inner cavity of the rod sleeves, and the connecting blocks are slidably connected to the inside of the connecting grooves. The opposite sides of the two sliding rods are respectively fixed to opposite sides of the two movable plates 505, and the movable plates 505 are made to perform forward and backward linear motion through the telescopic rods 512.

[0029] The installation mechanism 5 in this embodiment inserts the first limit rod into the first limit groove, and the second limit rod into the second limit groove, and rotates the rotating handle to drive the threaded rod 502 to rotate, so that the moving block 503 moves, and at the same time pushes the push block 504, the moving plate 505 and the clamping rod 506 to move together and squeeze the spring body 513, so that the clamping rod 506 is clamped into the clamping groove 507, and the moving plate 505 simultaneously drives the connecting plate 508 and the plug block 509 to move together, so that the plug block 509 is clamped into the slot 511, so as to install and fix the bracket 4 and the lifting ear body 2, and at the same time facilitate the quick disassembly of the bracket 4 and the lifting ear body 2.

[0030] The working principle of the above embodiment is:

[0031] When it is necessary to install the ear body 2 and the bracket 4, the first limiting rod is inserted into the first limiting groove, the second limiting rod is inserted into the second limiting groove, and the rotating handle is turned. The rotating handle drives the threaded rod 502 to rotate in the threaded hole 501, and the moving block 503 is driven to move by the threaded rod 502. The moving block 503 will drive the slider to slide inside the sliding groove, thereby increasing the stability of the moving block 503 when moving. When the moving block 503 moves, it will push the pushing block 504 to move, and the pushing block 504 will drive the moving plate 505 and the card rod 506 to move together and squeeze the spring body 513 and the telescopic rod 512, so that the card rod 506 is stuck in the inside of the card slot 507. At the same time, the moving plate 505 will drive the connecting plate 508 to move together, and drive the plug block 509 to move together through the connecting plate 508, so that the plug block 509 is stuck in the inside of the slot 511, so that the bracket 4 and the ear body 2 are installed and fixed. At the same time, it is convenient to quickly disassemble the bracket 4 and the ear body 2, which is easy to operate and simple to replace.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leaf spring front hanging ear assembly, comprising two mounting shells (1), characterized in that: A fixing plate (3) is fixed between the two mounting shells (1), a bracket (4) is attached to the upper surface of the fixing plate (3), a lifting ear body (2) is attached to the lower surface of the fixing plate (3), and a mounting mechanism (5) for fixing the bracket (4) and the lifting ear body (2) is provided inside the mounting shell (1); The mounting mechanism (5) comprises a moving component and a limiting component, wherein the moving component comprises a threaded hole (501) formed on the upper surface of the mounting shell (1), the threaded hole (501) being internally threadedly connected to a threaded rod (502), the lower surface of the threaded rod (502) being rotatably connected to a moving block (503) via a bearing seat, the two moving blocks (503) being abutted against a push block (504) on opposite sides, the two push blocks (504) being fixed with a moving plate (505) on opposite sides, and the lower surface of the moving plate (505) being fixed with a connecting plate (508).

2. The front lifting eye assembly of a leaf spring according to claim 1, characterized in that: The limiting assembly includes a plurality of telescopic rods (512) fixed to opposite sides of the inner cavities of the two mounting shells (1), the outer surfaces of the telescopic rods (512) being sleeved with spring bodies (513), a plurality of clamping rods (506) being fixed to opposite sides of the two movable plates (505), the limiting assembly also includes a plurality of clamping grooves (507) provided on the front and rear sides of the bracket (4), an insert block (509) being fixed to opposite sides of the two connecting plates (508), the limiting assembly also includes two bottom grooves (510) provided on the upper surface of the lifting ear body (2), and a slot (511) connected to the bottom groove (510) being provided inside the lifting ear body (2).

3. The front lifting eye assembly of a leaf spring according to claim 1, characterized in that: A sliding block is fixed on the opposite side of the two moving blocks (503), and a sliding groove is provided on the opposite side of the inner cavity of the two installation shells (1), and the sliding block is slidably connected to the inside of the sliding groove.

4. The front lifting eye assembly of a leaf spring according to claim 1, characterized in that: The moving block (503) and the pushing block (504) are both trapezoidal in shape, and a rotating handle is fixed on the upper surface of the threaded rod (502).

5. The front lifting eye assembly of a leaf spring according to claim 2, characterized in that: The card rod (506) is slidably connected to the inside of the card slot (507), and the insert block (509) is slidably connected to the inside of the slot (511).

6. The leaf spring front lifting eye assembly according to claim 1, characterized in that: The bracket (4) and the lifting ear body (2) are both U-shaped; a plurality of first limiting rods are fixed to the lower surface of the bracket (4), and a plurality of second limiting rods are fixed to the upper surface of the lifting ear body (2).

7. The leaf spring front lifting eye assembly according to claim 6, characterized in that: The upper surface of the fixing plate (3) is provided with a plurality of first limiting grooves, the lower surface of the fixing plate (3) is provided with a plurality of second limiting grooves, the first limiting rod is slidably connected to the inside of the first limiting groove, and the second limiting rod is slidably connected to the inside of the second limiting groove.

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