Anti-rotation plate spring lifting lug assembly

Abstract

The utility model relates to the technical field of automobile accessories, and discloses an anti-rotation plate spring lifting lug assembly which comprises a first lifting plate for a plate spring, a second lifting plate and two lifting pins, the first lifting plate and the second lifting plate are connected together through the two lifting pins, a limiting plate is arranged on the first lifting plate, two first anchor holes are formed in the middle of the first lifting plate, and the first anchor holes are connected with the limiting plate. Second anchor holes are formed in the two sides of the limiting plate, and anchor nails are connected into the first anchor holes and the second anchor holes in a penetrating mode. According to the anti-rotation limiting structure, the limiting plate and the second hanging plate are connected together through the ground anchors, so that an original welding connection mode is replaced, the fatigue resistance of the riveted structure is better than that of the welding connection mode, and the riveted structure can bear larger shearing force and tensile force, so that the use stability of the limiting plate is improved, the strength of the anti-rotation limiting structure is improved, and the service life of the anti-rotation limiting structure is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, in particular to an anti-rotation leaf spring hanging ear assembly. Background Art

[0002] Leaf spring lifting lugs are mainly used in the connection of leaf spring brackets on trucks. They connect the leaf spring coil ears and brackets and can play a good fixing role. After loading, the steel plate can be extended and stretched, which can have a normal buffering effect, promote the leaf spring, buffering, vibration reduction and guiding force transmission; in the field of commercial vehicles, there are generally two forms of rear leaf spring rear lifting lugs. One is that the leaf spring lower hanging lug pin is welded on the pin side plate, and the other is that the leaf spring upper hanging lug pin cannot be welded as a whole between the side plate due to the relationship of the frame and the problem of installation space, and is separated. The separated structure is prone to the rotation of the installation nut when the pin and the side plate are installed. In order to prevent the pin from rotating, the existing separated leaf spring lifting lug will use a limiting structure to limit the pin to prevent self-rotation.

[0003] For example, a leaf spring hanger limit device published in announcement number CN213167618U has the following main features: it includes a first side plate and a second side plate arranged opposite to each other; the first side plate and the second side plate are fixedly connected by two spaced-apart pins; the first side plate and the second side plate are provided with connecting holes for the pins to pass through and are coaxially arranged; the pin is provided with a mounting nut sleeved on the outer surface of the pin protruding from the second side plate; a limit baffle is provided on the outer side of the first side plate to limit the rotation of the pin during assembly; a positioning fitting portion is provided on the pin, and a limiting end portion is provided at the position where the limit baffle and the positioning fitting portion mutually constrain each other; the limiting end portion and the positioning fitting portion are mutually positioned, constrained and limit the rotation of the pin through line contact or surface contact.

[0004] During actual use of the limiting structure of the leaf spring lifting ear, the applicant found that the limiting baffle is generally welded to the side plate. During use, the welding points at the welding places are easily broken and fallen off due to the shear force of the pin shaft for a long time. The stability and service life of the limiting plate need to be improved. In order to solve the above-mentioned problems, an anti-rotation leaf spring lifting ear assembly is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-rotation leaf spring lifting ear assembly in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the utility model is as follows: an anti-rotation leaf spring hanging ear assembly, comprising a leaf spring hanging plate 1, a hanging plate 2 and two hanging pins, the hanging plate 1 and the hanging plate 2 are connected together by the two hanging pins, a limiting plate is arranged on the hanging plate 1, two anchor holes 1 are opened in the middle of the hanging plate 1, anchor holes 2 are opened on both sides of the limiting plate, and anchor nails are penetrated and connected in the anchor holes 1 and the anchor holes 2.

[0007] In a preferred embodiment, the suspension pin comprises a pin rod and a nut, a baffle is configured at one end of the pin rod, a threaded column is configured at the other end of the pin rod, and the nut is threadedly connected to the threaded column.

[0008] In a preferred embodiment, the diameter of the stud is smaller than the outer wall diameter of the pin rod.

[0009] In a preferred embodiment, both sides of the limiting plate are provided with limiting end portions, one side of the baffle is provided with a positioning matching portion, and the limiting end portions and the positioning matching portion constrain each other.

[0010] In a preferred embodiment, two connecting holes 1 are provided on the hanger plate 1, and two connecting holes 2 are provided on the hanger plate 2. The pin rod passes through the connecting hole 1, and the threaded column passes through the connecting hole 2. The diameter of the connecting hole 1 is adapted to the outer diameter of the pin rod, and the connecting hole 2 is adapted to the outer diameter of the threaded column.

[0011] In a preferred embodiment, the anchor comprises a nail core, one end of the nail core is configured with a flat head cap, the other end of the wick is formed into an arc-shaped pressure cap by extrusion, and the outer diameter of the nail core is adapted to the inner diameter of the anchor hole 1 and the anchor hole 2.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the utility model, anchor nails are used to connect the limit plate and the hanging plate 2 together, thereby replacing the original welding connection method. The fatigue resistance of the riveted structure is better than that of the welded connection, and it can withstand greater shear and tension, thereby improving the use stability of the limit plate, thereby improving the strength and service life of the anti-rotation limit structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 3 It is an exploded three-dimensional schematic diagram of the limit plate, the hanging plate and the suspension pin in the utility model.

[0017] Markings in the figure: 1-hanging plate one, 2-hanging plate two, 3-hanging pin, 4-limiting plate, 5-anchor hole one, 6-anchor hole two, 7-anchor nail, 8-pin rod, 9-nut, 10-limiting end, 11-positioning matching part, 12-connecting hole one, 13-connecting hole two, 14-nail core, 15-flat head cap, 16-arc pressure cap, 17-threaded column, 18-baffle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0019] The following will be combined Figure 1-Figure 3 A detailed description is given to an anti-rotation leaf spring lifting ear assembly according to an embodiment of the utility model.

[0020] Example:

[0021] The utility model embodiment provides an anti-rotation leaf spring hanging ear assembly, referring to Figures 1 to 3 As shown, it includes a leaf spring hanger plate 1, a hanger plate 2 and two hanging pins 3. The hanger plate 1 and the hanger plate 2 are connected together by two hanging pins 3. This structure utilizes the hanging pins 3, the hanger plate 1 and the hanger plate 2 to form a leaf spring hanging ear.

[0022] refer to Figures 1 to 3 As shown, the suspension pin 3 includes a pin rod 8 and a nut 9, a baffle 18 is constructed at one end of the pin rod 8, a threaded column 17 is constructed at the other end of the pin rod 8, the nut 9 is threadedly connected to the threaded column 17, two connecting holes 12 are provided on the suspension plate 1, and two connecting holes 13 are provided on the suspension plate 2. The pin rod 8 passes through the connecting hole 12, and the threaded column 17 passes through the connecting hole 2 13. The diameter of the connecting hole 12 is adapted to the outer diameter of the pin rod 8, and the connecting hole 2 13 is adapted to the outer diameter of the threaded column 17. In this structure, the pin rod 8 passes through the connecting hole 12 of the suspension plate 1, and the threaded column 17 passes through the connecting hole 2 13 of the suspension plate 2, and then the fixing nut 8 is screwed into the threaded column 17, thereby realizing the connection and assembly of the adjustable suspension plate and the suspension pin 3.

[0023] refer to Figures 1 to 3 As shown, the diameter of the threaded column 17 is smaller than the outer wall diameter of the pin 8 .

[0024] refer to Figures 1 to 3As shown, a limit plate 4 is provided on the hanger plate 1, two anchor holes 5 are provided in the middle of the hanger plate 1, anchor holes 6 are provided on both sides of the limit plate 4, and anchor holes 5 and anchor holes 6 are penetrated and connected with anchor nails 7. In this structure, the limit plate 4 and the hanger plate 2 3 are connected together by anchor nails 7, which replaces the original welding connection. The riveted structure has better fatigue resistance than the welded connection and can withstand greater shear force and tension, thereby improving the use stability of the limit plate 4, thereby improving the strength and service life of the anti-rotation limit structure.

[0025] refer to Figures 1 to 3 As shown, limiting end portions 10 are provided on both sides of the limiting plate 4, and a positioning matching portion 11 is provided on one side of the baffle plate 18. The limiting end portions 10 and the positioning matching portion 11 constrain each other. This structure utilizes the limiting end portion 10 of the limiting plate 4 to cooperate with the positioning matching portion 11 of the baffle plate 18 to limit the pin rod 8 and prevent it from rotating.

[0026] refer to Figures 1 to 3 As shown, the anchor 7 includes a nail core 14, one end of the nail core 14 is constructed with a flat head cap 15, and the other end of the nail core 14 is formed into an arc-shaped pressure cap 16 by hot pressing. The outer diameter of the nail core 14 is adapted to the inner diameter of the anchor hole 15 and the anchor hole 2 6. When the limit plate 4 of this structure is riveted, the nail core 14 is first passed through the anchor hole 15 and the anchor hole 2 6, and then the outer end of the nail core 14 is pressed into the arc-shaped pressure cap 16 by hot pressing, so that the limit plate 4 is stably pressed and fixed on the suspension plate 1.

[0027] It should be noted that the lifting eye structure disclosed in the above embodiment is applied to the lifting eye of the leaf spring of an automobile, and belongs to the field of automobile accessories.

[0028] The implementation principle of an anti-rotation leaf spring hanging ear assembly in an embodiment of the present application is as follows: when the limit plate 4 is fixedly installed, the nail core 14 is first passed through the anchor hole 1 5 and the anchor hole 2 6, and then the outer end of the nail core 14 is pressed into an arc-shaped pressure cap 16 by hot pressing, so that the limit plate 4 is stably pressed and fixed on the hanging plate 1, and the limit plate 4 is connected to the hanging plate 2 3 by the anchor nail 7, thereby replacing the original welding connection. The riveted structure has better fatigue resistance than the welded connection and can withstand greater shear and tension, thereby improving the use stability of the limit plate 4, thereby improving the strength and service life of the anti-rotation limit structure.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-rotation leaf spring hanging ear assembly, comprising a leaf spring hanging plate 1 (1), a hanging plate 2 (2) and two hanging pins (3), characterized in that: The hanging plate 1 (1) and the hanging plate 2 (2) are connected together by two hanging pins (3); a limit plate (4) is arranged on the hanging plate 1 (1); two anchor holes 1 (5) are arranged in the middle of the hanging plate 1 (1); anchor holes 2 (6) are arranged on both sides of the limit plate (4); anchor nails (7) are inserted through the anchor holes 1 (5) and the anchor holes 2 (6).

2. The anti-rotation leaf spring hanging ear assembly according to claim 1, characterized in that: The suspension pin (3) comprises a pin rod (8) and a nut (9); one end of the pin rod (8) is provided with a baffle (18); the other end of the pin rod (8) is provided with a threaded column (17); and the nut (9) is threadedly connected to the threaded column (17).

3. The anti-rotation leaf spring hanging ear assembly according to claim 2, characterized in that: The diameter of the threaded column (17) is smaller than the outer wall diameter of the pin rod (8).

4. The anti-rotation leaf spring hanging ear assembly according to claim 3, characterized in that: The limiting plate (4) is provided with limiting end portions (10) on both sides, and the baffle (18) is provided with a positioning matching portion (11) on one side, and the limiting end portions (10) and the positioning matching portion (11) constrain each other.

5. The anti-rotation leaf spring hanging ear assembly according to claim 2, characterized in that: The hanger plate one (1) is provided with two connection holes one (12), and the hanger plate two (2) is provided with two connection holes two (13). The pin rod (8) passes through the connection hole one (12), and the threaded column (17) passes through the connection hole two (13). The diameter of the connection hole one (12) is adapted to the outer diameter of the pin rod (8), and the connection hole two (13) is adapted to the outer diameter of the threaded column (17).

6. The anti-rotation leaf spring hanging ear assembly according to claim 1, characterized in that: The anchor nail (7) comprises a nail core (14), one end of the nail core (14) is configured with a flat head cap (15), the other end of the nail core (14) is formed into an arc-shaped pressing cap (16) by hot pressing, and the outer diameter of the nail core (14) is adapted to the inner diameter of the anchor hole 1 (5) and the anchor hole 2 (6).

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