Transmission friction assembly for damper and damper provided with transmission friction assembly and used for vehicle supporting rod

Abstract

The utility model relates to the field of dampers, in particular to a transmission friction assembly for a damper and the damper with the transmission friction assembly, which comprises a rotating element, and a friction element is arranged on the end face of the rotating element. The rotating element and the friction element are of an integrated structure. The transmission friction assembly disclosed by the utility model is provided with the rotating element and the friction element, so that the damper can quickly respond to generate torque; meanwhile, the rotating element and the friction element are designed to be of an integrated structure, so that the transmission friction assembly is an integrated piece, and the problem that the friction element and the rotating element are assembled in a misplaced mode can be solved when the damper is assembled subsequently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of damper, specifically is a kind of damper for transmission friction assembly and the damper for the strutting pole of vehicle with the transmission friction assembly. BACKGROUND

[0002] Under the background of the rapid development of current automobile electrification and intelligentization, automobile has become an important traffic tool in people's life, and the trunk of automobile is the key for storing goods.

[0003] At present, the tail door of most trunks still uses mechanical locking device, which is simple in structure and low in price, but has many inconveniences.

[0004] Under this condition, electric suction system of tail door emerges as the times require, and more and more vehicle types begin to be equipped.

[0005] The most important component in electric suction system is electric tail door strutting pole, and the general arrangement mode is that motor cooperates with two-stage planetary reducer to provide driving force, then cooperates with multi-start screw plastic nut to convert the rotary motion of motor reducer assembly into linear motion, and cooperates with compression spring to match door weight, but since spring cannot completely match the change of moment arm in tail door opening and closing process, damper is needed, which does not affect the smoothness of motor gear box transmission, and can ensure the hovering effect of tail door at each point of opening and closing.

[0006] Although many brands have increased damper now, the effect is not good or the cost has no advantage.

[0007] The existing damper structure and friction material selection type are various and different from each other, and there are problems of many parts, large weight, complex cooperation, complicated process, high cost and the like.

[0008] The existing patent 202321290213.3-a double-cavity damper and electric strutting pole discloses a box, the box is provided with a cavity and a partition, the partition separates the cavity into a first cavity and a second cavity which are open to the back, and the two sides of the partition have friction surfaces;At least two elastic friction assemblies, at least one of the elastic friction assemblies is arranged in the first cavity, and at least one of the elastic friction assemblies is arranged in the second cavity;At least two rotating members, at least one of the rotating members is rotatably arranged in the first cavity, and at least one of the rotating members is rotatably arranged in the second cavity, the rotating member abuts between the corresponding friction surface and the elastic friction assembly, and the rotating member is used for transmission cooperation with screw rod;Although the patent has good use effect through the above disclosure, the overall component classification is more, the single part is larger, and the actual assembly difficulty is inevitably large.

[0009] Therefore, in order to improve or solve the above at least one problem, the existing damper structure needs to be optimized. Utility model content

[0010] The utility model discloses a kind of integrated damper transmission structures.

[0011] In order to achieve the above object, the utility model adopts the technical scheme that:

[0012] A kind of transmission friction component for damper, including rotating element, the rotating element end surface is equipped with friction element;The rotating element and friction element are integrated structure.

[0013] The rotating element is connected with friction element by clamping mechanism;

[0014] The clamping mechanism includes the clamping groove being arranged on rotating element, and clamping protrusion is equipped on friction element, and the friction element is inserted on rotating element by clamping protrusion.

[0015] The projection of each clamping protrusion on friction element is trapezoidal;The smaller width end of the clamping protrusion is close to the side of friction element center;The clamping groove is used in cooperation with corresponding clamping protrusion.

[0016] The rotating element is equipped with the embedded ring groove close to the side of friction element.

[0017] The friction element is connected on rotating element by secondary injection molding process.

[0018] A kind of damper for car struts, including shell, screw plug pre-tightening piece and elastic component;

[0019] The shell includes shell body;The shell body is equipped with assembly sink groove;Friction stop mechanism is arranged in the assembly sink groove;

[0020] The friction stop mechanism includes the transmission friction component and rotation stop element;

[0021] The screw plug pre-tightening piece is extruded on friction stop mechanism by elastic component.

[0022] The screw plug pre-tightening piece includes screw plug body;The screw plug body is equipped with material reduction sink groove away from the side of friction stop mechanism;Auxiliary assembly groove is arranged on the inner wall of material reduction sink groove.

[0023] The shell body is equipped with waist type welding hole;The waist type welding hole is communicated with assembly sink groove.

[0024] The friction stop mechanism comprises two rotation-stopping elements; the transmission friction assembly comprises two friction elements, and the two friction elements are distributed on both sides of the rotating element; and the two rotation-stopping elements are distributed on both sides of the transmission friction assembly

[0025] The screw plug pre-tightening piece is screwed into the assembly recess, and the screw plug pre-tightening piece is welded into the assembly recess of the shell.

[0026] The utility model discloses the advantages are:

[0027] The utility model discloses a transmission friction assembly for damper and damper for supporting rod for vehicle with the transmission friction assembly.

[0028] The transmission friction assembly disclosed by the utility model has a rotating element and a friction element, and can ensure that the damper quickly responds to generate torque.

[0029] Meanwhile, the rotating element and the friction element are designed as an integrated structure, so that the transmission friction assembly disclosed by the utility model is an integrated component, so that the problem of assembly misplacement of the friction element and the rotating element can be avoided when the damper is assembled subsequently.

[0030] The damper with the transmission friction assembly has a compact overall structure, reduces the overall assembly difficulty of the damper, and reduces the error rate during assembly. DRAWINGS

[0031] The contents expressed by each drawing of the utility model specification and the marks in the drawings are briefly described as follows:

[0032] Figure 1 It is a structural schematic view of the transmission friction assembly in the utility model.

[0033] Figure 2 It is an exploded view of the transmission friction assembly in the utility model.

[0034] Figure 3 It is a structural schematic view of the damper in the utility model.

[0035] The marks in the above drawings are as follows:

[0036] 1, screw plug pre-tightening piece, 2, elastic component, 3, rotation-stopping element, 4-1, transmission module assembly, 4, rotating element, 4.1, friction element, 5, shell. DETAILED DESCRIPTION

[0037] The specific embodiments of the utility model are further described in detail by comparing the drawings and describing the optimal embodiment.

[0038] The utility model discloses a transmission friction assembly for damper, including rotating element 4, the end surface of rotating element 4 is equipped with friction element 4.1, rotating element 4 and friction element 4.1 are integrated structure, the transmission friction assembly of the utility model discloses has rotating element 4 and friction element 4.1, can guarantee that damper quick response produces torque, and rotating element 4 and friction element 4.1 are designed into integrated structure, such setting makes the transmission friction assembly 4 of the utility model discloses 1 for a whole integrated piece, like this can avoid the problem of the assembly misplacement of friction element 4.1 and rotating element 4 when the subsequent damper assembly.

[0039] The utility model discloses transmission friction assembly 4 mainly applies to damper, and the damper is more suitable for electric support pole.

[0040] Specifically, the transmission friction assembly 4 of the utility model discloses mainly includes rotating element 4, and rotating element 4 is mainly used to be connected with the component such as external gear, and the connecting mode generally adopts the mode of internal and external spline cooperation and connects, and the end surface of rotating element 4 is equipped with friction element 4.1, the setting of friction element 4.1 is mainly used to rub with stop element 3, in subsequent use, the shell 5 is fixed, and transmission friction assembly 4-1 and stop element 3 are mutually rotated and produce torque.

[0041] In addition, rotating element 4 and friction element 4.1 are integrated structure in the utility model, in other words, the transmission friction assembly 4 of the utility model discloses 1 for a whole piece, such setting, when the subsequent damper assembly, can avoid the problem of the assembly misplacement of friction element 4.1 and rotating element 4.

[0042] Meanwhile, through the integration of both, the number of damper parts existing alone can be reduced, the overall structure of the damper is simpler, and the damper assembly process is more concise.

[0043] In the utility model, transmission friction assembly 4-1 is equivalent to a composite part, mainly a transmission base material, and the side of the transmission base material is injection molded with friction material, so that the overall production cost is lower.

[0044] Further, the rotating element 4 is connected with the friction element 4.1 through the clamping mechanism in the utility model; the clamping mechanism is arranged, and the relative limiting between the friction element 4.1 and the rotating element 4 is facilitated; specifically, the clamping mechanism includes the clamping groove 4.3 arranged on the rotating element 4, the clamping protrusion 4.4 is arranged on the friction element 4.1, and the friction element 4.1 is inserted on the rotating element 4 through the clamping protrusion 4.4; based on the arrangement, the friction element 4.1 and the rotating element 4 have good limiting effect, the relative rotation between the friction element 4.1 and the rotating element 4 is avoided, and the linkage of the movement of the friction element 4.1 and the rotating element 4 is ensured.

[0045] Meanwhile, in actual production, the transmission friction assembly is generally produced by injection molding, and the rotating element 4 is generally made of PA or other high-strength materials; and the friction element 4.1 is generally made of composite friction material.

[0046] Further, the projection of each clamping protrusion 4.4 on the friction element 4.1 is trapezoidal in the utility model; the smaller-width end of the clamping protrusion 4.4 is arranged close to the center side of the friction element 4.1; such arrangement can ensure the stability of the movement of the transmission friction assembly 4-1, avoid the friction element 4.1 and the rotating element 4 from being separated under the action of centrifugal force, and the clamping protrusion 4.4 is designed as a structure with one end large and one end small, which also has good limiting effect, and avoids the friction element 4.1 from moving relative to the rotating element 4.

[0047] In the utility model, the clamping groove 4.3 and the clamping protrusion 4.4 are mutually adapted, and the two are formed in the same way and connected in an interference fit mode.

[0048] Further, the rotating element 4 is provided with the embedded ring groove 4.2 close to one side of the friction element 4.1 in the utility model; the embedded ring groove 4.2 is arranged, and the embedded arrangement of the friction element 4.1 on the rotating element 4 is facilitated; meanwhile, by limiting the inner diameter and the outer diameter of the embedded ring groove 4.2, for example, the outer diameter of the embedded ring groove 4.2 is greater than the outer diameter of the rotating element 4; the embedded ring groove 4.2 is coaxially arranged with the rotating element 4; such arrangement makes the edge of the rotating element 4 equivalent to form a side rib; such arrangement, when the friction element 4.1 is embedded in the rotating element 4, the side rib has good limiting effect, and in subsequent rotation, the friction element 4.1 and the rotating element 4 are avoided from being dislocated and deviated due to the action of centrifugal force.

[0049] Further, the friction element 4.1 is connected to the rotating element 4 through a secondary injection molding process in the utility model, the production of the transmission friction assembly 4-1 is facilitated, the assembly process of the friction element 4.1 and the rotating element 4 is avoided, meanwhile, the friction element 4.1 is injection molded on the rotating element 4, the tightness of the connection between the two is ensured to a certain extent.

[0050] The utility model provides a damping ware for car support rod, including shell 5, screw plug preloading 1 and elastic part 2, the shell 5 includes shell body 5.2, be equipped with assembly sink groove on shell body 5.2, be equipped with friction stop gear in assembly sink groove, the friction stop gear includes transmission friction assembly 4-1 and rotation stop element 3, screw plug preloading 1 is extruded on friction stop gear through elastic part 2, rotating element 4 and friction element 4.1 are designed into integral structure in the utility model, such setting makes the transmission friction assembly 4-1 disclosed in the utility model be an integrated piece, so when the whole damping ware assembly is carried out subsequently, the assembly misplacement problem of friction element 4.1 and rotating element 4 can be avoided, and the whole structure of the damping ware with the transmission friction assembly 4-1 is more compact, the whole damping ware assembly difficulty can be reduced, and the error rate during assembly is reduced.

[0051] Further, the screw plug preloading 1 includes a screw plug body 1-1, the screw plug body 1-1 is provided with a material reducing sink groove 1.1 away from the friction stop gear, and an auxiliary assembly groove 1.2 is arranged on the inner wall of the material reducing sink groove 1.1.

[0052] Meanwhile, the auxiliary assembly groove 1.2 is arranged on the inner wall of the material reducing sink groove 1.1, a plurality of auxiliary assembly grooves 1.2 are arranged on the inner wall of the material reducing sink groove 1.1, generally four auxiliary assembly grooves 1.2 are arranged, and the plurality of auxiliary assembly grooves 1.2 are uniformly distributed on the inner wall of the material reducing sink groove 1.1. Based on the arrangement, the screw plug preloading 1 is facilitated to be rotationally assembled on the shell 5.

[0053] Further, the screw plug pre-tightening piece 1 is screwed in the assembly recess 5-25.3; the screw plug pre-tightening piece 1 is welded in the assembly recess of the shell 5; such arrangement facilitates the assembly of the screw plug pre-tightening piece 1 on the shell 5, and a waist-shaped welding hole 5.1 is arranged on the shell body 5.2; the waist-shaped welding hole 5.1 is in communication with the assembly recess 5-25.3; in the utility model, after the screw plug pre-tightening piece 1 is installed to the set position on the shell 5, the screw plug pre-tightening piece 1 and the shell 5 are welded integrally by ultrasonic welding, so that the torque is kept stable; the symmetrical waist-shaped welding hole 5.1 can adjust the welding position of the screw plug pre-tightening piece 1 of different dampers torque; and the waist-shaped welding hole 5.1 also has a good avoiding effect, because the material will be deformed when welded, the waist-shaped welding hole 5.1 has a good avoiding effect.

[0054] Further, in the utility model, the friction stop mechanism comprises two rotation-stopping elements 3; the transmission friction assembly 4-1 comprises two friction elements 4.1, and the two friction elements 4.1 are distributed on both sides of the rotating element 4; the two rotation-stopping elements 3 are distributed on both sides of the transmission friction assembly 4-1; based on the above design, the rotating element 4 can quickly generate a set torque by matching the friction elements 4.1 at both ends, and the response speed of the damper is improved.

[0055] Specifically,

[0056] The utility model discloses a damper mainly includes: screw plug pre-tightening piece 1, helical spring, rotation-stopping element 3, transmission friction assembly 4-1 and shell 5.

[0057] The helical spring is extruded by the screw plug pre-tightening piece 1 to compress and generate pressure, and the transmission friction assembly 4-1 generates torque when rotating when the shell 5 is fixed.

[0058] When connected, the screw plug pre-tightening piece 1 and the shell 5 are welded integrally by ultrasonic welding, so that the torque is kept stable; the transmission friction assembly 4-1 and the surface in contact therewith are uniformly oiled.

[0059] The helical spring is extruded by the screw plug pre-tightening piece 1 to compress and generate pressure, the screw plug pre-tightening piece 1 is threadedly connected with the shell 5, a stable space is formed, and the helical spring can be adjusted to provide appropriate jacking force according to actual needs.

[0060] The screw plug pre-tightening piece 1 and the shell 5 are welded integrally by ultrasonic welding, so that the compression amount of the helical spring is kept stable, and the symmetrical waist-shaped welding hole 5.1 can adjust the welding position of the screw plug pre-tightening piece 1 of different dampers torque.

[0061] When the shell 5 is fixed, the transmission friction assembly 4-1 generates torque relative to the rotation-stopping element 3 when rotating; the friction element 4.1 in the transmission friction assembly 4-1 can be carbon fiber composite material or other friction material.

[0062] The transmission friction assembly 4-1 and the surface in contact with it are uniformly oiled; the oiled lubrication can reduce the wear and heat of the transmission friction assembly 4-1, and reduce the influence of high and low temperature on the damper torque.

[0063] The damper disclosed by the utility model is integrated with the rotating element 4 and the friction element 4.1, so that the number of damper parts is reduced, the structure is simple, and the assembly process is more concise; the utility model uses one transmission friction assembly 4-1 to replace two C fibers + rotating gaskets, saves assembly time and reduces cost; the damper adjusts the spring compression length by adjusting the screw plug pre-tightening piece 1 screw rotation depth, and then adjusts the pre-tightening pressure; the transmission friction assembly 4-1 needs to be twice injection molded, the rotating element 4 is a transmission base material, the transmission base material is mostly PA or other high-strength materials, and the two-end friction element 4.1 is mostly composite friction material; the screw plug pre-tightening piece 1 and the symmetrical waist-shaped welding hole 5.1 are integrated by ultrasonic welding, so that the screw plug pre-tightening piece 1 is prevented from being axially loose.

[0064] Obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, which are within the protection scope of the utility model.

Claims

1. A transmission friction assembly for a damper, characterized by The rotating element is provided with a friction element on the end face; the rotating element and the friction element are integrated structure; The rotating element is connected with the friction element through the clamping mechanism; The clamping mechanism includes a clamping groove arranged on the rotating element, and a clamping protrusion arranged on the friction element; the friction element is inserted on the rotating element through the clamping protrusion.

2. A transmission friction assembly for a damper according to claim 1, wherein The projection of each clamping protrusion on the friction element is trapezoidal; the smaller width end of the clamping protrusion is arranged close to the center side of the friction element; the clamping groove is used in cooperation with the corresponding clamping protrusion.

3. A transmission friction assembly for a damper according to claim 1, wherein The rotating element is provided with an embedded ring groove close to the side of the friction element.

4. A transmission friction assembly for a damper according to any one of claims 1 to 3, characterized in that The friction element is connected on the rotating element through the secondary injection molding process.

5. A damper for a stay bar for a vehicle, characterized by comprising: The outer shell includes an outer shell body; the outer shell body is provided with an assembly groove; the assembly groove is provided with a friction stop mechanism; The friction stop mechanism includes the transmission friction assembly and the rotation stop element according to any one of claims 1-4; The screw pre-tightening piece is extruded on the friction stop mechanism through the elastic component.

6. The damper for a stay bar for a vehicle according to claim 5, characterized in that; The screw pre-tightening piece includes a screw body; the screw body is provided with a material reducing groove away from the friction stop mechanism; the inner wall of the material reducing groove is provided with an auxiliary assembly groove.

7. The damper for a stay bar for a vehicle according to claim 5, characterized by The outer shell body is provided with a waist-shaped welding hole; the waist-shaped welding hole is communicated with the assembly groove.

8. The damper for a stay bar for a vehicle according to claim 5, characterized by: The friction stop mechanism includes two rotation stop elements; the transmission friction assembly includes two friction elements; the two friction elements are distributed on both sides of the rotating element; the two rotation stop elements are distributed on both sides of the transmission friction assembly.

9. The damper for a stay bar for a vehicle according to claim 5, characterized by: The screw pre-tightening piece is screwed in the assembly groove; the screw pre-tightening piece is welded in the assembly groove of the outer shell.

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