Novel dynamic vibration absorber

Abstract

The utility model discloses a novel dynamic vibration absorber and belongs to the technical field of automobile parts, the novel dynamic vibration absorber comprises a support and a mass block, the support comprises a bottom plate and side plates, the left side and the right side of the bottom plate in the length direction are bent to form the side plates, and the two sides of the mass block are connected with the side plates; two mounting plates and two hanging pieces are arranged on one side of the bottom plate in the width direction, the two mounting plates are symmetrically arranged on the bottom plate left and right, the two hanging pieces are arranged close to the two mounting plates respectively, the hanging frame is of a U-shaped structure, and the hanging frame is bent towards the side away from the mass block. And a pre-hanging structure is added during loading, so that compared with a traditional dynamic vibration absorber, the dynamic vibration absorber is more convenient to load, and the labor cost of assembly is saved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a novel dynamic vibration absorber. Background Art

[0002] With the development of automobile technology and the improvement of living standards, users have put forward higher requirements for the safety, reliability, comfort and humanized design of automobiles. The idling condition of automobiles is a common working condition of automobiles, and the human body is more sensitive to the comfort of riding in the idling condition. Therefore, the noise and vibration in the car are important factors affecting the NVH level of the whole vehicle. Automobile noise is mainly divided into two categories according to the propagation path: one is air noise and the other is structural noise. As the response transmitter of various stimuli on the car, the noise radiated by the automobile body parts is the main component of the low-frequency noise in the car and the main noise source of the noise in the car.

[0003] The present application specifically relates to a dynamic vibration absorber for a car tailgate. Relevant prior arts include the Chinese patent application "A dynamic vibration absorber for a car tailgate", application number: CN202222256296.6; it discloses a mass block, a bracket and a bushing, wherein the mass block is in a cylindrical structure, and a bushing is arranged at both ends of the mass block in the axial direction, the bushing and the mass block are fixed by screws, and a mounting hole is arranged on the bracket, and the outer peripheral part of the mounting hole is embedded in the bushing.

[0004] At present, the existing automotive tailgate power vibration absorber focuses on the vibration reduction effect of the product, the service life of the product, etc., but ignores the convenience of product assembly. This application further optimizes the product assembly while maintaining the product performance of the power vibration absorber. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a new type of dynamic vibration absorber, which adds a pre-hanging structure during loading, is more convenient for loading than traditional dynamic vibration absorbers, and saves labor costs for assembly.

[0006] The technical solution adopted in the present application is: a new type of dynamic vibration absorber, including a bracket and a mass block, the bracket includes a bottom plate and a side plate, the left and right sides of the bottom plate in the length direction are bent to form a side plate, the two sides of the mass block are connected to the side plates, and the bottom plate is provided with two mounting plates and two hangers on one side in the width direction, the two mounting plates are symmetrically arranged on the bottom plate, one on the left and one on the right, the two hangers are respectively arranged close to the two mounting plates, the hanger is in a U-shaped structure, and the hanger is bent to the side away from the mass block.

[0007] Compared with the prior art, the advantages of the present application are that, first, the overall structure of the present application is relatively simple, consisting of a bracket and a mass block, wherein the bracket includes a bottom plate and a side plate and side plates on the left and right sides of the bottom plate, and the two sides of the mass block are connected to the side plates to realize the formation of a dynamic vibration absorber. Secondly, the bottom plate of the bracket of the present application is provided with two mounting plates on one side in the width direction, and the two mounting plates are symmetrically arranged on the bottom plate, one on the left and one on the right. In the present application, the installation of the dynamic vibration absorber is realized by two mounting plates. On this basis, the present application adds two hangers. The two hangers can be pre-assembled when installing the dynamic vibration absorber, which is convenient for the assemblers to carry out subsequent installation. Moreover, the present application designs two hangers to be arranged near the two mounting plates, that is, the pre-hanging position in the present application is designed to be near the installation position, so as to cooperate to realize the installation of the dynamic vibration absorber. This makes the present application relatively stable and reliable when suspended by the hanger. In particular, the stability of the position where the mounting plate is located is higher, so that it is convenient for the assemblers to install the present application through the mounting plate. The present application adds a pre-hanging structure during loading, which is more convenient for loading than traditional dynamic vibration absorbers and saves labor costs for assembly.

[0008] In some embodiments of the present application, the bottom plate includes two base strips, which are staggered to form an X-shaped structure, and the two ends of the base strips are respectively connected to the two side panels.

[0009] In some embodiments of the present application, the base strip protrudes toward the side away from the mass block to form a convex strip, and the convex strip is arranged along the length direction of the base strip. The side of the convex strip facing the mass block is a concave surface, and the side of the convex strip away from the mass block is a convex surface.

[0010] In the present application, the base strip is deformed to form a convex strip in order to further improve the structural strength of the base strip itself, and the side of the convex strip facing the mass block is concave in order to avoid the deformation of the convex strip from interfering with the mass block.

[0011] In some embodiments of the present application, the base plate includes a reinforcing strip, which is arranged along the length direction of the base plate, the reinforcing strip connects two base strips, and the reinforcing strip is located on the side where the mounting plate is located.

[0012] In some embodiments of the present application, two mounting plates are connected to the reinforcement bar, and two hangers are connected to the reinforcement bar.

[0013] In some embodiments of the present application, the mounting plate and the connection between the mounting plate and the reinforcing strip are provided with protruding pieces, the protruding pieces are in a curved structure, and the convex surface of the protruding pieces is in the opposite direction to that of the convex strip. In other words, the side of the protruding piece facing the mass block is a convex surface, and the side of the protruding piece facing away from the mass block is a concave surface. The opposite direction of the convex surface of the protruding piece and the convex strip helps to further improve the structural strength of the bottom plate and the connection between the bottom plate. Moreover, the location of the protruding piece has avoided the mass block and has no effect on the mass block.

[0014] In some embodiments of the present application, the bottom plate is integrally formed, the mounting plate is formed by extending outward from the bottom plate, and the hanging piece is formed by extending outward from the bottom plate and bending. The above structural arrangement makes the overall structural strength of the bottom plate, the mounting plate, and the hanging piece high, and the processing and forming of the parts is more efficient.

[0015] In some embodiments of the present application, one side of the mounting plate is connected to the bottom plate, one end of the mounting plate extends out of the side plate, one end of the mounting plate is provided with a mounting hole, and the hanger is provided near the other end of the mounting plate. The above structure is the preferred structural solution of the present application.

[0016] In some embodiments of the present application, the mass block includes a counterweight block and a rubber member, the rubber member wraps the counterweight block inside thereof, the rubber member is connected to the side plate, and the counterweight block has a rectangular structure.

[0017] In some embodiments of the present application, the rubber member includes a rubber shell wrapped on the surface of the counterweight, a rubber sheet attached to the inner wall of the side plate, and a rubber foot, the surface of the shell is provided with a plurality of protruding ridges, the rubber foot connects the rubber shell and the rubber sheet, and two rubber feet are arranged on a rubber sheet at intervals. The above structural arrangement plays a good role in shock absorption and buffering.

[0018] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of this application;

[0021] Figure 2 It is a schematic diagram of the structure of the bracket in this application;

[0022] Figure 3 Schematic diagram of the structure of the mass block in this application.

[0023] Among them, the specific description of the figure marks is as follows: 1. bottom plate; 11. base strip; 11a. convex strip; 12. reinforcement strip; 13. protruding part; 2. side plate; 3. mounting plate; 4. hanging part; 5. counterweight block; 6. rubber part; 61. rubber shell; 62. rubber sheet; 63. rubber support foot. DETAILED DESCRIPTION

[0024] The present application is described in detail below in conjunction with the accompanying drawings.

[0025] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] A novel dynamic vibration absorber, embodiment 1 Figure 1 As shown: it includes a bracket and a mass block, the bracket includes a bottom plate 1 and a side plate 2, the left and right sides of the bottom plate 1 in the length direction are bent to form the side plate 2, and the two sides of the mass block are connected to the side plate 2. The overall structure of the present application is relatively simple, consisting of a bracket and a mass block, wherein the bracket includes a bottom plate 1 and a side plate 2 and the side plates 2 on the left and right sides of the bottom plate 1, and the two sides of the mass block are connected to the side plate 2 to form a dynamic vibration absorber. The bottom plate 1 is provided with two mounting plates 3 and two hangers 4 on one side in the width direction, and the two mounting plates 3 are symmetrically arranged on the bottom plate 1, one on the left and one on the right, and the two hangers 4 are respectively arranged close to the two mounting plates 3, and the hanger is in a U-shaped structure, and the hanger is bent to the side away from the mass block. In the present application, the installation of the dynamic vibration absorber is realized by two mounting plates 3. On this basis, the present application adds two hangers 4. The two hangers 4 can realize pre-assembly when installing the dynamic vibration absorber, which is convenient for the assembler to carry out subsequent installation. Moreover, the present application is designed to have two hangers 4 disposed near two mounting plates 3, that is, the pre-hanging position in the present application is designed near the mounting position, so as to cooperate in realizing the installation of the dynamic vibration absorber. This makes the present application relatively stable and reliable when suspended through the hangers 4. In particular, the position where the mounting plate 3 is located is more stable, so that it is convenient for the assemblers to install the present application through the mounting plate 3. The present application adds a pre-hanging structure when loading, which is more convenient for loading than the traditional dynamic vibration absorber and saves the labor cost of assembly.

[0027] Embodiment 2, as Figure 1 to Figure 2 As shown, the bottom plate 1 includes two base strips 11 , which are staggered to form an X-shaped structure, and two ends of the base strips 11 are respectively connected to the two side plates 2 .

[0028] The base strip 11 protrudes toward the side away from the mass block to form a convex strip 11a, which is arranged along the length direction of the base strip 11. The side of the convex strip 11a facing the mass block is a concave surface, and the side of the convex strip 11a away from the mass block is a convex surface.

[0029] In the present application, the base strip 11 is deformed to form the convex strip 11a in order to further improve the structural strength of the base strip 11. The side of the convex strip 11a facing the mass block is concave in order to prevent the deformation of the convex strip 11a from interfering with the mass block.

[0030] The bottom plate 1 includes a reinforcing strip 12 , which is arranged along the length direction of the bottom plate 1 . The reinforcing strip 12 connects two base strips 11 , and is located on the side where the mounting plate 3 is located.

[0031] Two mounting plates 3 are connected to the reinforcing strip 12, and two hangers 4 are connected to the reinforcing strip 12. The mounting plates 3 and the connection between the mounting plates 3 and the reinforcing strip 12 are provided with protruding pieces 12a, and the protruding pieces 12a are in a curved structure, and the convex surface direction of the protruding pieces 12a is opposite to that of the convex strip 11a. In other words, the side of the protruding piece 12a facing the mass block is a convex surface, and the side of the protruding piece 12a facing away from the mass block is a concave surface. The opposite direction of the convex surface of the protruding piece 12a and the convex strip 11a helps to further improve the structural strength of the bottom plate 1 and the connection between the bottom plate 1. Moreover, the position of the protruding piece 12a has avoided the mass block and has no effect on the mass block.

[0032] The bottom plate 1 is formed in one piece, the mounting plate 3 is formed by extending outward from the bottom plate 1, and the hanging component 4 is formed by extending outward from the bottom plate 1 and bending. The above structural arrangement makes the overall structural strength of the bottom plate 1, the mounting plate 3, and the hanging component 4 high, and the processing and forming of the parts is more efficient.

[0033] One side of the mounting plate 3 is connected to the bottom plate 1, one end of the mounting plate 3 extends out of the side plate 2, one end of the mounting plate 3 is provided with a mounting hole, and the hanger 4 is provided near the other end of the mounting plate 3. The above structure is the preferred structural solution of this application.

[0034] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0035] Embodiment three, as Figures 1 to 3 As shown, the mass block includes a counterweight block 5 and a rubber member 6. The rubber member 6 wraps the counterweight block 5 inside thereof. The rubber member 6 is connected to the side plate 2. The counterweight block 5 is a rectangular parallelepiped structure.

[0036] The rubber member 6 includes a rubber outer shell 61 wrapped around the surface of the counterweight 5, a rubber sheet 62 attached to the inner wall of the side plate 2, and a rubber foot 63. The outer shell surface is provided with a plurality of protruding ridges. The rubber foot 63 connects the rubber outer shell 61 and the rubber sheet 62. Two rubber feet 63 are arranged at intervals on one rubber sheet 62. The above structural arrangement plays a good role in shock absorption and buffering.

[0037] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0038] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A new type of dynamic vibration absorber, characterized in that: The invention comprises a bracket and a mass block, wherein the bracket comprises a bottom plate (1) and a side plate (2), the left and right sides of the bottom plate (1) being bent in the length direction to form the side plate (2), the two sides of the mass block being connected to the side plates (2), the bottom plate (1) being provided with two mounting plates (3) and two hanging parts (4) on one side in the width direction, the two mounting plates (3) being symmetrically arranged on the bottom plate (1) on the left and the right, the two hanging parts (4) being respectively arranged close to the two mounting plates (3), the hanging bracket being in a U-shaped structure, and the hanging bracket being bent towards the side away from the mass block.

2. A novel dynamic vibration absorber according to claim 1, characterized in that: The bottom plate (1) comprises two base strips (11), the two base strips (11) are arranged in an interlaced manner to form an X-shaped structure, and the two ends of the base strips (11) are respectively connected to the two side plates (2).

3. A novel dynamic vibration absorber according to claim 2, characterized in that: The base strip (11) protrudes toward a side away from the mass block to form a convex strip (11a), and the convex strip (11a) is arranged along the length direction of the base strip (11), and the side of the convex strip (11a) facing the mass block is a concave surface, and the side of the convex strip (11a) facing away from the mass block is a convex surface.

4. A novel dynamic vibration absorber according to claim 2, characterized in that: The bottom plate (1) comprises a reinforcing strip (12), wherein the reinforcing strip (12) is arranged along the length direction of the bottom plate (1), the reinforcing strip (12) connects the two base strips (11), and the reinforcing strip (12) is located on the side where the mounting plate (3) is located.

5. A novel dynamic vibration absorber according to claim 4, characterized in that: The two mounting plates (3) are connected to the reinforcing strip (12), and the two hanging parts (4) are connected to the reinforcing strip (12).

6. A novel dynamic vibration absorber according to claim 5, characterized in that: The mounting plate (3) and the connection between the mounting plate (3) and the reinforcing strip (12) are provided with a protruding piece (12a), the protruding piece (12a) being in a curved structure, and the convex surface direction of the protruding piece (12a) and the convex strip (11a) being opposite.

7. A novel dynamic vibration absorber according to claim 1, characterized in that: The base plate (1) is integrally formed, the mounting plate (3) is formed by extending outward from the base plate (1), and the hanging component (4) is formed by extending outward from the base plate (1) and being bent.

8. The novel dynamic vibration absorber according to claim 1 is characterized in that: One side of the mounting plate (3) is connected to the bottom plate (1), one end of the mounting plate (3) extends out of the side plate (2), one end of the mounting plate (3) is provided with a mounting hole, and the hanger (4) is provided near the other end of the mounting plate (3).

9. A novel dynamic vibration absorber according to claim 1, characterized in that: The mass block comprises a counterweight (5) and a rubber member (6); the rubber member (6) wraps the counterweight (5) inside the rubber member; the rubber member (6) is connected to the side plate (2); and the counterweight (5) is a rectangular parallelepiped structure.

10. A novel dynamic vibration absorber according to claim 9, characterized in that: The rubber member (6) comprises a rubber outer shell (61) wrapped around the surface of the counterweight (5), a rubber sheet (62) attached to the inner wall of the side plate (2), and a rubber support foot (63). The outer shell surface is provided with a plurality of protruding ridges. The rubber support foot (63) connects the rubber outer shell (61) and the rubber sheet (62). Two rubber support feet (63) are arranged on one rubber sheet (62) at intervals.

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