Differential moment type metal damper for automobile parts

Abstract

The utility model relates to the technical field of automobile damping, in particular to a differential moment type metal damper for automobile parts, which comprises a rotating pin, a friction plate, a retainer ring and a base, one end of the rotating pin is inserted into the inner wall of the friction plate, the retainer ring is clamped on the outer wall of the rotating pin, and the friction plate is mounted in the base; a first mounting hole is formed in one end of the rotating pin and used for fixing an external product, the rotating pin is further rotated by rotating the external product in the using process, and a limiting surface is further arranged on the rotating pin and used for fixing the external product and preventing the situation that the rotating pin rotates along with main power in the using process, the driving effect cannot be achieved, and the rotating pin cannot rotate. And failure is caused. The differential moment type metal damper is simple in design principle, small in use space and capable of being converted into larger force values. Compared with traditional damping torsion, the damping torsion is more stable, and the product with the increased force value can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive damping, and specifically relates to a differential metal damper for automotive parts. Background Technique

[0002] The differential metal damping structure is a common damping structure. The damping structure usually includes components made of metal materials, such as steel or alloy materials. These components usually have elasticity and can undergo elastic deformation under the action of external loads.

[0003] During the automobile assembly process, in the process of using the existing traditional damper, its structure is large and the design is complex, and the damping value cannot be converted and adjusted. In view of this, we propose a differential metal damper for automotive parts. Content of the Utility Model

[0004] The purpose of the utility model is to provide a differential metal damper for automotive parts to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A differential metal damper for automotive parts, including: a rotating pin, a friction plate, a retaining ring and a base. One end of the rotating pin is inserted into the inner wall of the friction plate, and the retaining ring is clamped on the outer wall of the rotating pin. The friction plate is installed in the base;

[0007] One end of the rotating pin is provided with a first mounting hole for fixing an external product. During use, by rotating the external product, the rotating pin is rotated. The rotating pin is also provided with a limiting surface for fixing the external product to prevent the rotating pin from rotating together with the driving force during rotation in use, failing to play a driving role and resulting in failure.

[0008] Preferably, a plurality of first annular grooves are formed on the rotating pin to reduce the contact area with the friction plate, thereby reducing the friction force between the rotating pin and the friction plate during rotation. This structure can be adjusted. The rotating pin is also provided with a second annular groove for installing the retaining ring. In order to prevent the friction plate from slipping out after being installed on the rotating pin, the retaining ring is designed to block and limit it.

[0009] Preferably, the friction plate is provided with a circular through hole for placing the rotating pin, and a rectangular through hole is formed on one side of the friction plate and communicated with the circular through hole for the deformation of the friction plate, that is, to provide a space for the telescopic change amount of the friction plate, so that the product can provide a working space during use.

[0010] Preferably, a protrusion is provided on one side of the friction plate to prevent the friction plate from detaching from the base. Thus, the protrusion is designed to be in interference fit with the base to achieve a fastening effect.

[0011] Preferably, the retaining ring is provided with a second mounting hole for fixing and limiting in cooperation with the second annular groove to prevent the friction plate from coming out. There are also two third mounting holes on both sides of the second mounting hole on the retaining ring to prevent the retaining ring from being deformed effectively and breaking during installation, ensuring the effective installation of the retaining ring on the rotating pin.

[0012] Preferably, the base is provided with a fourth mounting hole for placing the rotating pin, the friction plate and the retaining ring. A limiting groove is provided in the fourth mounting hole of the base for interference fit with the protrusion on the friction plate to fix the friction plate.

[0013] Preferably, two mounting through holes are provided on the base for fixing the base to prevent the entire product from rotating together during use, resulting in the failure of the entire product.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The differential metal damping in the present utility model has a simple design principle, occupies a small space but can be converted into a larger force value. It is more stable than the traditional damping torque and can meet the products with increased force values. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is an exploded schematic diagram of the present utility model;

[0018] Figure 3 is a schematic diagram of the rotating pin structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the friction plate structure of the present utility model;

[0020] Figure 5 is a schematic diagram of the retaining ring structure of the present utility model;

[0021] Figure 6 is a schematic diagram of the side structure of the base of the present utility model;

[0022] Figure 7 is a schematic diagram of the base structure of the present utility model;

[0023] Figure 8 is a schematic diagram of the metal damping force application direction structure of the present utility model.

[0024] In the figure: 1. Write-off; 2. Friction plate; 3. Retaining ring; 4. Base; 5. First mounting hole; 6. Limiting surface; 7. First annular groove; 8. Second annular groove; 9. Circular through-hole; 10. Rectangular through-hole; 11. Protrusion; 12. Second mounting hole; 13. Third mounting hole; 14. Fourth mounting hole; 15. Limiting groove; 16. Mounting through-hole. Detailed implementation mode

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "several" means two or more unless otherwise clearly and specifically defined.

[0029] Such as Figure 1-8As shown in the figure, a differential metal damper for automotive parts includes: a rotating pin 1, a friction plate 2, a retaining ring 3, and a base 4. One end of the rotating pin 1 is inserted into the inner wall of the friction plate 2, and the retaining ring 3 is snap-fitted on the outer wall of the rotating pin 1. The friction plate 2 is installed inside the base 4. Among them, in this metal damper, the rotating pin 1, the friction plate 2, and the base 4 are cast by integral casting and combined with each other to form a single whole, so as to reduce the number of connecting parts during the assembly process, improve the strength and stability of the components, and reduce the assembly cost.

[0030] A first mounting hole 5 is provided at one end of the rotating pin 1 for fixing an external product. A limiting surface 6 is also provided on the rotating pin 1 for fixing the external product. During use, the rotating pin 1 is rotated by rotating the external product, preventing the rotating pin 1 from not rotating with the external product during rotation in use, failing to play a driving role and resulting in failure.

[0031] A number of first annular grooves 7 are provided on the rotating pin 1 to reduce the contact area with the friction plate 2, thereby reducing the frictional force between the rotating pin 1 and the friction plate 2 during rotation. This structure can be used for adjustment. A second annular groove 8 is also provided on the rotating pin 1 for installing the retaining ring 3. In order to prevent the friction plate 2 from slipping out after being installed on the rotating pin 1, the retaining ring 3 is designed to block and limit it.

[0032] A circular through-hole 9 is provided on the friction plate 2 for placing the rotating pin 1. A rectangular through-hole 10 is provided on one side of the friction plate 2 and communicates with the circular through-hole 9 for the deformation of the friction plate 2, that is, to provide a space for the telescopic change amount of the friction plate 2, so that the product can provide a working space during use.

[0033] A protrusion 11 is provided on one side of the friction plate 2 to limit the friction plate 2 from detaching from the base 4. Then, the protrusion 11 is designed to interfere with the base 4 for assembly to achieve a fastening effect.

[0034] A second mounting hole 12 is provided on the retaining ring 3 for cooperating with the second annular groove 8 for fixing and limiting to prevent the friction plate 2 from slipping out. Two third mounting holes 13 are also provided on the retaining ring 3 on both sides of the second mounting hole 12. In order to prevent the retaining ring 3 from deforming effectively and breaking during installation, ensure the effective installation of the retaining ring 3 on the rotating pin 1.

[0035] A fourth mounting hole 14 is provided on the base 4 for placing the rotating pin 1, the friction plate 2, and the retaining ring 3. A limiting groove 15 is provided in the fourth mounting hole 14 of the base 4 for interference fit with the protrusion 11 on the friction plate 2 to realize the fixation of the friction plate 2.

[0036] Two mounting through-holes 16 are provided on the base 4 for fixing the base 4 to limit the base 4 to prevent the entire product from rotating together during use and causing the entire product to fail.

[0037] When the rotation direction of the pin 1 is the same as the telescopic direction of the friction plate 2, the friction between the pin 1 and the friction plate 2 increases at this time, and it will overcome the friction with the friction plate 2 and rotate during use, thereby generating torque. On the contrary, when the rotation direction of the pin 1 is opposite to the telescopic direction of the friction plate 2, during the rotation of the pin 1 at this time, the friction plate 2 will be driven by the frictional force to expand and contract in the opposite direction, that is, the frictional force between the pin 1 and the friction plate 2 is reduced. At the same time, a number of first annular grooves 7 are provided inside the pin 1, which is beneficial to adjusting the contact area between the pin 1 and the friction plate 2, and then realizing the adjustment of the friction between the pin 1 and the friction plate 2, so as to adjust the torque.

[0038] The working principle of the present utility model is as follows:

[0039] During use, in the interference fit form between the pin 1 and the friction plate 2, first, the friction plate 2 has a certain degree of elasticity. Secondly, when the rotation direction of the pin 1 is the same as the telescopic direction of the friction plate 2, during the working process, the friction plate 2 will "hold tighter and tighter". When it is in the tightened state, that is, under the force, the inner diameter of the circular through hole 9 of the pin 1 becomes smaller, so that the friction between the friction plate 2 and the pin 1 increases, and the greater the frictional force overcome during rotation, the greater the torque generated. On the contrary, when the rotation direction of the pin 1 is opposite to the telescopic direction of the friction plate 2, during the rotation of the pin 1 at this time, the friction plate 2 will be driven by the frictional force to expand and contract in the opposite direction, and the inner diameter of the circular through hole 9 becomes larger, that is, the frictional force between the pin 1 and the friction plate 2 is reduced, so as to reduce the torque and make the product better reset.

[0040] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model, and do not limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A differential torque metal damper for automotive parts, characterized in that: include: A rotating pin (1), a friction plate (2), a retaining ring (3) and a base (4), wherein one end of the rotating pin (1) is inserted into the inner wall of the friction plate (2), and the retaining ring (3) is clamped on the outer wall of the rotating pin (1), and the friction plate (2) is installed in the base (4); A first mounting hole (5) is provided at one end of the rotating pin (1) for fixing an external product. A limited position surface (6) is also provided on the rotating pin (1) for fixing an external product.

2. The differential moment metal damper for automobile accessories according to claim 1, characterized in that: The rotating pin (1) is provided with a plurality of first annular grooves (7) for reducing the contact area with the friction plate (2), and the rotating pin (1) is also provided with a second annular groove (8) for installing the retaining ring (3).

3. The differential torque metal damper for automobile accessories according to claim 1, characterized in that: The friction plate (2) is provided with a circular through hole (9) for accommodating the rotation pin (1); one side of the friction plate (2) is provided with a rectangular through hole (10) which is connected to the circular through hole (9) and is used for deformation of the friction plate (2).

4. The differential moment metal damper for automobile accessories according to claim 1, characterized in that: A protrusion (11) is provided on one side of the friction plate (2) for limiting the friction plate (2) from separating from the base (4).

5. The differential torque metal damper for automobile accessories according to claim 1, characterized in that: The retaining ring (3) is provided with a second mounting hole (12) for cooperating with the second annular groove (8) for fixed positioning. The retaining ring (3) is also provided with two third mounting holes (13) located on both sides of the second mounting hole (12).

6. The differential moment metal damper for automobile accessories according to claim 1, characterized in that: The base (4) is provided with a fourth mounting hole (14) for accommodating the rotation pin (1), the friction plate (2) and the retaining ring (3); the fourth mounting hole (14) of the base (4) is provided with a limiting groove (15) for interference fit with the protrusion (11) on the friction plate (2).

7. The differential torque metal damper for automobile accessories according to claim 1, characterized in that: The base (4) is provided with two mounting through holes (16) for fixing the base (4).

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