A leaf spring bracket and lug assembly

Abstract

The utility model relates to the technical field of plate spring support, specifically relates to a plate spring support and lug assembly, including plate spring support body, the surface of plate spring support body is opened groove no.

Description

Technical Field

[0001] This utility model belongs to the technical field of leaf spring brackets, specifically relating to a leaf spring bracket and a lifting lug assembly. Background Technology

[0002] The leaf spring bracket and the hanger are two key basic fixed components in the automotive leaf spring suspension system. They work together to support, fix and allow the leaf spring to work normally. The leaf spring bracket is usually welded to the longitudinal beam of the vehicle frame and is the core fixed support of the leaf spring. The hanger is a "moving joint" and is generally installed on the other end of the leaf spring or on the moving support point of the vehicle frame. The two work together to ensure that the leaf spring can both support the vehicle body and freely bend and stretch to complete the shock absorption function.

[0003] The leaf spring bracket and the lifting lug are connected by a pin. The existing connecting pin does not have a shock absorption function. Frequent vibration and impact can easily cause the pin to fall off and break. In addition, the existing leaf spring bracket and lifting lug are castings, which have a relatively complex structure and heavy weight. Therefore, we propose a leaf spring bracket and lifting lug assembly. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a leaf spring bracket and lifting lug assembly to solve the problems mentioned in the background art, which are that the leaf spring bracket and lifting lug are connected by a pin, the existing connecting pin does not have a shock absorption function, frequent vibration and impact can easily cause the pin to fall off and break, and the existing leaf spring bracket and lifting lug are castings, with a relatively complex structure and heavy weight.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leaf spring bracket and lifting lug assembly, comprising a leaf spring bracket body, a groove 1 formed on the surface of the leaf spring bracket body, a groove 2 formed on the bottom of the leaf spring bracket body, a lifting lug body rotatably connected to one side of the leaf spring bracket body, a plurality of grooves 3 formed on the surface of the lifting lug body, a pin rotatably connected inside the leaf spring bracket body and the lifting lug body, an anti-slip pad sleeved on the surface of the pin, a fixed cylinder slidably connected to the bottom of the pin, and a base plate fixedly connected to the bottom of the fixed cylinder. The top of the pin is rotatably connected to a fixing bolt, and the bottom of the pin is fixedly connected to a sliding plate. Two sets of limiting rods are symmetrically fixedly connected inside the fixed cylinder. An adjustment structure is provided inside the fixed cylinder. The adjustment structure includes a knob, the top of which is fixedly connected to a threaded rod. The top of the threaded rod is fixedly connected to a limiting block. An adjustment plate is slidably connected inside the fixed cylinder. Spring dampers are symmetrically fixedly connected to the front and rear ends of the top of the adjustment plate. A shock-absorbing spring is fixedly connected to the top of the adjustment plate. A limiting groove is formed at the bottom of the adjustment plate.

[0006] Preferably, the leaf spring bracket body and the lifting lug body are forged from low alloy steel, and both the leaf spring bracket body and the lifting lug body are rotatably connected to the surface of the pin shaft. The top of the fixing cylinder is in contact with the bottom of the lifting lug body, and the anti-slip pad is made of rubber.

[0007] Preferably, the two ends of the limiting rod are fixedly connected to the top of the base plate and the top of the inner wall of the fixed cylinder, respectively. The surfaces of the sliding plate and the adjusting plate are each provided with a circular groove, and the sliding plate and the adjusting plate are slidably connected to the surface of the limiting rod through the circular groove.

[0008] Preferably, the bottom of the base plate is provided with a threaded groove, and the base plate is rotatably connected in the threaded groove.

[0009] Preferably, the top of the threaded rod passes through the bottom of the adjusting plate and is fixedly connected to the limiting block, the limiting block is rotatably connected in the limiting groove, and the radius of the limiting block is larger than the radius of the threaded rod.

[0010] Preferably, the two ends of the spring damper and the shock-absorbing spring are fixedly connected to the bottom of the sliding plate and the top of the adjusting plate, respectively.

[0011] Preferably, the top of the pin is provided with a second threaded groove, and the fixing bolt is rotatably connected in the second threaded groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This leaf spring bracket and lifting lug assembly is equipped with an adjustment structure. When the leaf spring bracket body and the lifting lug body are connected, the pin passes through the leaf spring bracket body and the lifting lug body. The pin is locked in the leaf spring bracket body and the lifting lug body by fixing bolts. Turning the knob drives the threaded rod to rotate. The threaded rod engages with the threaded groove, which drives the limiting block to move inside the fixed cylinder. Because the limiting block and the limiting groove are interlocked, the limiting block can drive the adjusting plate to move up and down without driving the adjusting plate to rotate, thereby adjusting the distance between the sliding plate and the adjusting plate. This, in turn, adjusts the preload of the spring damper between the sliding plate and the adjusting plate, thus adapting to different usage requirements. After adjustment, the threaded rod is locked with thread glue. When the pin is subjected to vibration, the spring damper and shock-absorbing spring buffer and absorb the impact vibration, reducing the risk of breakage and damage.

[0014] 2. The leaf spring bracket and lifting lug assembly is provided with groove one, groove two and groove three. The leaf spring bracket body and the lifting lug body are forged from low alloy steel. At the same time, the groove one, groove two and multiple sets of groove three are opened on the surface of the leaf spring bracket body and the lifting lug body to achieve lightweight design, reduce the weight of the leaf spring bracket body and the lifting lug body, reduce costs, meet the use in harsh working environments, improve the performance and fatigue life of the product, and reduce the scrap rate of the product after changing to the existing forging process structure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional bottom view of the structure of this utility model;

[0017] Figure 3 This is an exploded view of the structure of this utility model;

[0018] Figure 4 This is a front sectional view of the pin and adjustment structure of this utility model;

[0019] Figure 5 This is an exploded sectional view of the pin and adjustment structure of this utility model.

[0020] In the diagram: 1. Leaf spring bracket body; 11. Groove 1; 12. Groove 2; 2. Lifting lug body; 21. Groove 3; 3. Anti-slip pad; 4. Pin; 41. Fixing cylinder; 42. Base plate; 43. Fixing bolt; 44. Sliding plate; 45. Limiting rod; 5. Adjustment structure; 51. Knob; 52. Threaded rod; 53. Limiting block; 54. Adjusting plate; 55. Spring damper; 56. Shock-absorbing spring; 57. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A leaf spring bracket and lifting lug assembly includes a leaf spring bracket body 1. A groove 11 is formed on the surface of the leaf spring bracket body 1, and a groove 12 is formed on the bottom of the leaf spring bracket body 1. A lifting lug body 2 is rotatably connected to one side of the leaf spring bracket body 1. Multiple sets of grooves 21 are formed on the surface of the lifting lug body 2. A pin 4 is rotatably connected inside the leaf spring bracket body 1 and the lifting lug body 2. An anti-slip pad 3 is sleeved on the surface of the pin 4. A fixing cylinder 41 is slidably connected to the bottom of the pin 4. A base plate 42 is fixedly connected to the bottom of the fixing cylinder 41. A fixing bolt 43 is rotatably connected to the top of the pin 4. A sliding plate 44 is fixedly connected to the bottom of the pin 4. The fixing cylinder 41... Two sets of limiting rods 45 are symmetrically fixedly connected internally. An adjustment structure 5 is provided inside the fixed cylinder 41. The adjustment structure 5 includes a knob 51, with a threaded rod 52 fixedly connected to the top of the knob 51. A limiting block 53 is fixedly connected to the top of the threaded rod 52. An adjustment plate 54 is slidably connected inside the fixed cylinder 41. Spring dampers 55 are symmetrically fixedly connected to the front and rear ends of the top of the adjustment plate 54. A shock-absorbing spring 56 is fixedly connected to the top of the adjustment plate 54. A limiting groove 57 is provided at the bottom of the adjustment plate 54. When the leaf spring bracket body 1 is connected to the lifting lug body 2, the pin 4 passes through the leaf spring bracket body 1 and the lifting lug body 2, and the adjustment is achieved through the fixed... The fixing bolt 43 locks the pin 4 inside the leaf spring bracket body 1 and the lifting lug body 2. Turning the knob 51 rotates the threaded rod 52, which engages with the threaded groove, causing the limiting block 53 to move inside the fixed cylinder 41. Because the limiting block 53 and the limiting groove 57 interlock, the limiting block 53 can move the adjusting plate 54 up and down without rotating it, thus adjusting the distance between the sliding plate 44 and the adjusting plate 54. This, in turn, adjusts the preload of the spring damper 55 between the sliding plate 44 and the adjusting plate 54, adapting to different usage requirements. After adjustment, the threaded rod 52 is locked in place with thread-locking adhesive. 4. When subjected to vibration, the impact vibration is buffered and absorbed by the spring damper 55 and the shock absorption spring 56, reducing the risk of breakage and damage. Grooves 11, 12 and 21 are provided. The leaf spring support body 1 and the lifting lug body 2 are forged from low alloy steel. At the same time, the grooves 11, 12 and multiple sets of grooves 21 are opened on the surface of the leaf spring support body 1 and the lifting lug body 2 to achieve lightweight design, reduce the weight of the leaf spring support body 1 and the lifting lug body 2, reduce costs, meet the use in harsh working environments, improve the performance and fatigue life of the product, and reduce the scrap rate of the product after changing to the existing forging process structure.

[0024] Furthermore, the leaf spring bracket body 1 and the lifting lug body 2 are forged from low alloy steel. Both the leaf spring bracket body 1 and the lifting lug body 2 are rotatably connected to the surface of the pin 4. The top of the fixed cylinder 41 contacts the bottom of the lifting lug body 2. The anti-slip pad 3 is made of rubber. This reduces the weight of the leaf spring bracket body 1 and the lifting lug body 2, thereby reducing costs. It can meet the requirements of harsh working environments, improve the performance and fatigue life of the product, and reduce the scrap rate of the product after changing to the existing forging process structure.

[0025] Furthermore, the two ends of the limiting rod 45 are fixedly connected to the top of the base plate 42 and the top of the inner wall of the fixed cylinder 41, respectively. The surfaces of the sliding plate 44 and the adjusting plate 54 are both provided with a circular groove. The sliding plate 44 and the adjusting plate 54 are slidably connected to the surface of the limiting rod 45 through the circular groove. The movement of the sliding plate 44 and the adjusting plate 54 is limited by the cooperation of the circular groove and the limiting rod 45, so that the sliding of the two is more stable.

[0026] Furthermore, a threaded groove is provided at the bottom of the base plate 42. The base plate 42 is rotatably connected to the threaded groove. Rotating the knob 51 drives the threaded rod 52 to rotate. The threaded rod 52 cooperates with the threaded groove, driving the limit block 53 to move inside the fixed cylinder 41. After adjustment, the threaded rod 52 is locked with thread adhesive. Locking with thread adhesive is existing technology and will not be described in detail later.

[0027] Furthermore, the top of the threaded rod 52 passes through the bottom of the adjusting plate 54 and is fixedly connected to the limiting block 53. The limiting block 53 is rotatably connected in the limiting groove 57. The radius of the limiting block 53 is larger than the radius of the threaded rod 52. The limiting block 53 and the limiting groove 57 engage with each other, so that the limiting block 53 can drive the adjusting plate 54 to move up and down without driving the adjusting plate 54 to rotate, thereby adjusting the distance between the sliding plate 44 and the adjusting plate 54.

[0028] Furthermore, the two ends of the spring damper 55 and the shock-absorbing spring 56 are fixedly connected to the bottom of the sliding plate 44 and the top of the adjusting plate 54, respectively. When the pin 4 is vibrated, the impact vibration is buffered and absorbed by the spring damper 55 and the shock-absorbing spring 56, reducing the risk of breakage and damage.

[0029] Furthermore, the top of the pin 4 is provided with a threaded groove 2, and the fixing bolt 43 is rotatably connected in the threaded groove 2. The pin 4 is locked in the leaf spring bracket body 1 and the lifting lug body 2 by the fixing bolt 43, which facilitates the installation and disassembly of the pin 4.

[0030] Working principle: When connecting the leaf spring bracket body 1 to the lifting lug body 2, the pin 4 passes through the leaf spring bracket body 1 and the lifting lug body 2, and the pin 4 is locked in the leaf spring bracket body 1 and the lifting lug body 2 by the fixing bolt 43. Turning the knob 51 drives the threaded rod 52 to rotate. The threaded rod 52 engages with the threaded groove, which drives the limiting block 53 to move inside the fixed cylinder 41. Since the limiting block 53 and the limiting groove 57 are interlocked, the limiting block 53 can drive the adjusting plate 54 to move up and down without driving the adjusting plate 54 to rotate, thereby controlling the sliding plate 44 and the adjusting plate 54. The spacing is adjusted to adjust the preload of the spring damper 55 between the sliding plate 44 and the adjusting plate 54. After adjustment, the threaded rod 52 is locked with thread glue. When the pin 4 is vibrated, the impact vibration is buffered and absorbed by the spring damper 55 and the shock absorption spring 56. The leaf spring bracket body 1 and the lug body 2 are forged from low alloy steel. The groove 11, groove 12 and multiple sets of groove 21 are opened on the surface of the leaf spring bracket body 1 and the lug body 2 to achieve lightweight design and reduce the weight of the leaf spring bracket body 1 and the lug body 2.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A leaf spring bracket and lifting lug assembly, comprising a leaf spring bracket body (1), characterized in that: The surface of the leaf spring bracket body (1) is provided with a groove 1 (11), and the bottom of the leaf spring bracket body (1) is provided with a groove 2 (12). A lifting lug body (2) is rotatably connected to one side of the leaf spring bracket body (1). The surface of the lifting lug body (2) is provided with multiple sets of grooves 3 (21). A pin (4) is rotatably connected inside the leaf spring bracket body (1) and the lifting lug body (2). An anti-slip pad (3) is sleeved on the surface of the pin (4). A fixing cylinder (41) is slidably connected to the bottom of the pin (4). A base plate (42) is fixedly connected to the bottom of the fixing cylinder (41). A fixing bolt (43) is rotatably connected to the top of the pin (4). The bottom of the pin (4) is... A sliding plate (44) is fixedly connected. Two sets of limiting rods (45) are symmetrically fixedly connected inside the fixed cylinder (41). An adjustment structure (5) is provided inside the fixed cylinder (41). The adjustment structure (5) includes a knob (51). A threaded rod (52) is fixedly connected to the top of the knob (51). A limiting block (53) is fixedly connected to the top of the threaded rod (52). An adjustment plate (54) is slidably connected inside the fixed cylinder (41). Spring dampers (55) are symmetrically fixedly connected to the front and rear ends of the top of the adjustment plate (54). A shock-absorbing spring (56) is fixedly connected to the top of the adjustment plate (54). A limiting groove (57) is opened at the bottom of the adjustment plate (54).

2. The leaf spring bracket and lifting lug assembly according to claim 1, characterized in that: The leaf spring bracket body (1) and the lug body (2) are forged from low alloy steel. The leaf spring bracket body (1) and the lug body (2) are rotatably connected to the surface of the pin (4). The top of the fixing cylinder (41) is in contact with the bottom of the lug body (2). The anti-slip pad (3) is made of rubber.

3. The leaf spring bracket and lifting lug assembly according to claim 1, characterized in that: The two ends of the limiting rod (45) are fixedly connected to the top of the base plate (42) and the top of the inner wall of the fixed cylinder (41), respectively. The surfaces of the sliding plate (44) and the adjusting plate (54) are both provided with a circular groove. The sliding plate (44) and the adjusting plate (54) are slidably connected to the surface of the limiting rod (45) through the circular groove.

4. The leaf spring bracket and lifting lug assembly according to claim 1, characterized in that: The bottom of the base plate (42) is provided with a threaded groove, and the base plate (42) is rotatably connected in the threaded groove.

5. The leaf spring bracket and lifting lug assembly according to claim 1, characterized in that: The top of the threaded rod (52) passes through the bottom of the adjusting plate (54) and is fixedly connected to the limiting block (53). The limiting block (53) is rotatably connected in the limiting groove (57). The radius of the limiting block (53) is greater than the radius of the threaded rod (52).

6. The leaf spring bracket and lifting lug assembly according to claim 1, characterized in that: The two ends of the spring damper (55) and the shock-absorbing spring (56) are respectively fixedly connected to the bottom of the sliding plate (44) and the top of the adjusting plate (54).

7. The leaf spring bracket and lifting lug assembly according to claim 1, characterized in that: The top of the pin (4) is provided with a threaded groove, and the fixing bolt (43) is rotatably connected in the threaded groove.

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