Damping device for transmission shaft

Abstract

The utility model discloses a damping device for a transmission shaft, and relates to the technical field of transmission shaft damping, the damping device comprises a transmission shaft, a built-in cavity is arranged at the central axis of the inner wall of the transmission shaft, the inner wall of the built-in cavity is rotatably connected with a plurality of cardan shafts, and the central axis of the outer wall of each cardan shaft is fixedly connected with a connecting block. By arranging the connecting lugs on the connecting frames, when equipment needs to be used, the connecting lugs on the connecting frame at the upper end are attached to the position where installation is needed, then the connecting shafts are rotated to fix the connecting frames to the position, meanwhile, the transmission shaft is placed on the connecting frames, and then the connecting frame at the lower end is attached to the transmission shaft. A plurality of combining shafts are rotated to combine a plurality of connecting frames, so that the transmission shaft is integrally suspended, and then the transmission shaft is connected to a transmission part of equipment through a plurality of universal shafts II, so that the transmission shaft can shake in the transmission shaft during use, the damage of the transmission shaft is reduced, the transmission shaft can be conveniently connected with the bottom of an automobile, and the transmission shaft can be quickly mounted.

Description

Technical Field

[0001] The utility model belongs to the technical field of drive shaft shock absorption, and particularly relates to a shock absorption device for a drive shaft. Background Art

[0002] During the driving process of an automobile, the engine needs to transmit torque to the tires through the drive shaft, so as to realize the rolling of the tires. The drive shaft will vibrate during the transmission process. This kind of vibration is on the one hand because of the use of universal joints, and secondly because there is a deviation between the axis of the drive shaft and the rotating shaft. Therefore, this kind of vibration is difficult to eradicate. However, this kind of vibration will not only make the driver and passengers feel extremely uncomfortable, but may also form resonance and damage the structure of the automobile.

[0003] Existing equipment is not easy to connect to the automobile during use, and cumbersome operations are required for connection. Moreover, the buffering force is too poor during use, which is very easy to damage the automobile itself. At the same time, the sound insulation effect is too poor, and the bottom components are damaged too frequently due to excessive vibration rate. Therefore, we propose a shock absorption device for a drive shaft. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a shock absorption device for a drive shaft. Through the connection frame, the problems that existing equipment is not easy to connect to the automobile during use, cumbersome operations are required for connection, the buffering force is too poor during use and very easy to damage the local part of the automobile, the sound insulation effect is too poor, and the bottom components are damaged too frequently due to excessive vibration rate are solved.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a shock absorption device for a drive shaft, including a drive shaft. An inner cavity is opened at the central axis of the inner wall of the drive shaft. A plurality of universal shafts are rotatably connected to the inner wall of the inner cavity. A connecting block is fixedly connected to the central axis of the outer wall of the universal shaft. A transfer shaft is fixedly connected to the outer wall of the connecting block away from the universal shaft. A connecting cavity is opened at the inner wall of the transfer shaft away from the connecting block. A universal shaft II is rotatably connected to the inner wall of the connecting cavity.

[0007] Furthermore, a plurality of sound insulation rubber frames are fixedly connected to the outer wall of the drive shaft. A plurality of connection frames are fixedly connected to the outer wall of the drive shaft. A stable cavity is opened at the inner wall of the drive shaft.

[0008] Furthermore, a plurality of balls are rotatably connected to the inner wall of the stable cavity. A plurality of connection ears are fixedly connected to the outer wall of the connection frame. A plurality of connection grooves are opened at the inner wall of the connection ear.

[0009] Further, a connecting shaft is rotatably connected to the inner wall of the connecting groove. On the outer wall of the connecting frame away from the connecting ear, a plurality of merging ears are fixedly connected. At the central axis of the inner wall of the merging ear, a merging shaft is rotatably connected.

[0010] Further, a plurality of rubber bottom sheets are fixedly connected to the outer wall of the sound insulation rubber frame. On the outer wall of the rubber bottom sheet away from the sound insulation rubber frame, a rubber cover is fixedly connected.

[0011] Further, an inner built-in groove is opened at the central axis of the inner wall of the rubber cover. On the outer wall of the rubber bottom sheet away from the sound insulation rubber frame, a buffer spring is fixedly connected, and the buffer spring is fixedly connected to the inner bottom side of the rubber cover.

[0012] Further, an arc-shaped connecting block is fixedly connected to the outer wall of the rubber cover away from the rubber bottom sheet. On the outer wall of the arc-shaped connecting block, a plurality of adapter plates are fixedly connected.

[0013] Further, a second connecting groove is opened at the central axis of the inner wall of the adapter plate. A second adapter shaft is rotatably connected to the inner wall of the second connecting groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. By providing the connecting ears on the connecting frame in the utility model, when the device needs to be used, the multiple connecting ears on the upper connecting frame are attached to the place where installation is required. Then, the multiple connecting shafts are rotated to fix the connecting frame here. At the same time, the transmission shaft is placed at the connecting frame, and then the lower connecting frame is attached to it. The multiple merging shafts are rotated to merge the multiple connecting frames, so that the whole transmission shaft is suspended. Then, through the connection at the multiple universal shafts II to the transmission part of the device, it achieves the effect that it can shake inside during use, reducing its damage, and at the same time being convenient to connect to the bottom of the vehicle, and can quickly install the transmission shaft.

[0016] 2. By providing the rubber bottom sheets on the sound insulation rubber frame in the utility model, when the device is in use, multiple components can be connected through the arc-shaped connecting blocks on the multiple rubber covers, or directly installed at the bottom of the vehicle. When the transmission shaft rotates rapidly during the movement of the device, vibration force will be generated. During vibration, the multiple sound insulation rubber frames will start to push the multiple rubber bottom sheets, causing the rubber covers and the buffer springs to be squeezed, and then making them rebound, achieving the effect of strengthening the buffer force, reducing the damage rate to the device and the bottom components, and enhancing the sound insulation effect.

[0017] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 Cross-sectional view of the overall structure of the present utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of part A in;

[0022] Figure 4 Cross-sectional view of the rubber cover structure of the present utility model;

[0023] Figure 5 For the present utility model Figure 4 Enlarged view of part B in.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Transmission shaft, 101. Built-in cavity, 102. Universal shaft, 103. Connecting block, 104. Adapter shaft, 105. Connecting cavity, 106. Universal shaft two, 107. Sound-insulating rubber frame, 108. Connecting frame, 109. Stable cavity, 110. Ball, 2. Connecting ear, 201. Connecting groove, 202. Connecting shaft, 203. Merging ear, 204. Merging shaft, 205. Rubber bottom sheet, 206. Buffer spring, 207. Rubber cover, 208. Built-in groove, 209. Arc-shaped connecting block, 210. Adapter plate, 211. Connecting groove two, 212. Adapter shaft two. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-5As shown in the figure, the utility model relates to a shock-absorbing device for a transmission shaft, which includes a transmission shaft 1. An inner cavity 101 is opened at the central axis of the inner wall of the transmission shaft 1. A plurality of universal shafts 102 are rotatably connected to the inner wall of the inner cavity 101. During movement, the universal shafts 102 will turn inside the transmission shaft 1 to prevent jamming. A connecting block 103 is fixedly connected to the central axis of the outer wall of the universal shaft 102. A transfer shaft 104 is fixedly connected to the outer wall of the side of the connecting block 103 away from the universal shaft 102. A connecting cavity 105 is opened at the inner wall of the side of the transfer shaft 104 away from the connecting block 103. A universal shaft two 106 is rotatably connected to the inner wall of the connecting cavity 105.

[0028] As shown in Figure 3 the figure, a plurality of sound-insulating rubber frames 107 are fixedly connected to the outer wall of the transmission shaft 1. By setting a plurality of sound-insulating rubber frames 107, vibration can be reduced and the sound-insulating effect can be enhanced during use. A plurality of connecting frames 108 are fixedly connected to the outer wall of the transmission shaft 1. A stable cavity 109 is opened in the inner wall of the transmission shaft 1.

[0029] As shown in Figures 1-3 the figure, a plurality of balls 110 are rotatably connected to the inner wall of the stable cavity 109, which can enhance the stability of the device during use. A plurality of connecting ears 2 are fixedly connected to the outer wall of the connecting frame 108. A plurality of connecting grooves 201 are opened in the inner wall of the connecting ears 2.

[0030] As shown in Figure 1 the figure, a connecting shaft 202 is rotatably connected to the inner wall of the connecting groove 201. During installation, rotate a plurality of connecting shafts 202 to fix the upper connecting frame 108 at the bottom. A plurality of merging ears 203 are fixedly connected to the outer wall of the side of the connecting frame 108 away from the connecting ears 2. A merging shaft 204 is rotatably connected to the central axis of the inner wall of the merging ears 203.

[0031] As shown in Figure 5 the figure, a plurality of rubber bottom sheets 205 are fixedly connected to the outer wall of the sound-insulating rubber frame 107. A rubber cover 207 is fixedly connected to the outer wall of the side of the rubber bottom sheet 205 away from the sound-insulating rubber frame 107. During use of the device, the rubber cover 207 can prevent water and dust from entering the interior.

[0032] As shown in Figure 5 the figure, an inner groove 208 is opened at the central axis of the inner wall of the rubber cover 207. A buffer spring 206 is fixedly connected to the outer wall of the side of the rubber bottom sheet 205 away from the sound-insulating rubber frame 107. During vibration, the buffer spring 206 can relieve the damage to the device. The buffer spring 206 is fixedly connected to the inner bottom side of the rubber cover 207.

[0033] As shown in Figure 5As shown, on the outer wall of the side of the rubber cover 207 away from the rubber base film 205, there is a fixed connection with an arc-shaped connection block 209. On the outer wall of the arc-shaped connection block 209, there are fixedly connected a number of adapter plates 210. Through the provided adapter plates 210, it can be connected to multiple parts.

[0034] Among them, as Figure 5 shown, at the central axis of the inner wall of the adapter plate 210, there is a connection groove two 211. Inside the connection groove two 211, there is a rotatable connection with an adapter shaft two 212. Rotating multiple adapter shafts two 212 can connect multiple devices.

[0035] A specific application of this embodiment is:

[0036] When the staff needs to use this device, make the multiple connection ears 2 on the upper connection frame 108 fit the place where it needs to be installed, then rotate multiple connection shafts 202 to fix the connection frame 108 here. At the same time, place the transmission shaft 1 at the connection frame 108, then fit the lower connection frame 108 with it, and rotate multiple merging shafts 204 to merge multiple connection frames 108, so that the entire transmission shaft 1 is suspended. Then connect to the transmission part of the device through multiple universal shafts two 106. During use, it can shake inside, reducing its damage. At the same time, it can be connected to multiple components through the arc-shaped connection blocks 209 on multiple rubber covers 207, or directly installed at the bottom of the vehicle. When the device is in motion, the transmission shaft 1 will generate vibration force due to rapid rotation. During vibration, multiple sound-insulating rubber frames 107 will start to push multiple rubber base films 205, causing the rubber covers 207 and the buffer springs 206 to be squeezed, and then making them rebound to strengthen the buffer force, while reducing the damage rate to the device and internal components.

[0037] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0038] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A vibration damping device for a transmission shaft, comprising a transmission shaft (1), characterized in that: A built-in cavity (101) is provided at the center axis of the inner wall of the transmission shaft (1), and a plurality of universal shafts (102) are rotatably connected to the inner wall of the built-in cavity (101); a connecting block (103) is fixedly connected to the center axis of the outer wall of the universal shaft (102); a transfer shaft (104) is fixedly connected to the outer wall of the connecting block (103) on a side away from the universal shaft (102); a connecting cavity (105) is provided at the inner wall of the transfer shaft (104) on a side away from the connecting block (103); and a second universal shaft (106) is rotatably connected to the inner wall of the connecting cavity (105).

2. A transmission shaft damping device according to claim 1, characterized in that: The outer wall of the transmission shaft (1) is fixedly connected to a plurality of sound-insulating rubber frames (107), the outer wall of the transmission shaft (1) is fixedly connected to a plurality of connecting frames (108), and the inner wall of the transmission shaft (1) is provided with a stabilizing cavity (109).

3. A transmission shaft damping device according to claim 2, characterized in that: The inner wall of the stabilizing cavity (109) is rotatably connected to a plurality of balls (110), the outer wall of the connecting frame (108) is fixedly connected to a plurality of connecting ears (2), and the inner wall of the connecting ear (2) is provided with a plurality of connecting grooves (201).

4. A transmission shaft damping device according to claim 3, characterized in that: The inner wall of the connection groove (201) is rotatably connected to a connection shaft (202); the outer wall of the connection frame (108) on a side away from the connection ear (2) is fixedly connected to a plurality of merging ears (203); and the inner wall of the merging ear (203) is rotatably connected to a merging shaft (204) at the center axis.

5. A transmission shaft damping device according to claim 4, characterized in that: A plurality of rubber bottom sheets (205) are fixedly connected to the outer wall of the sound insulation rubber frame (107), and a rubber cover (207) is fixedly connected to the outer wall of the rubber bottom sheet (205) on a side away from the sound insulation rubber frame (107).

6. A transmission shaft damping device according to claim 5, characterized in that: A built-in groove (208) is provided at the center axis of the inner wall of the rubber cover (207), and a buffer spring (206) is fixedly connected to the outer wall of the rubber bottom sheet (205) on a side away from the sound insulation rubber frame (107), and the buffer spring (206) is fixedly connected to the inner bottom side of the rubber cover (207).

7. A transmission shaft damping device according to claim 6, characterized in that: An arc-shaped connecting block (209) is fixedly connected to the outer wall of the rubber cover (207) at one side away from the rubber bottom sheet (205), and a plurality of adapter plates (210) are fixedly connected to the outer wall of the arc-shaped connecting block (209).

8. A transmission shaft damping device according to claim 7, characterized in that: A second connecting groove (211) is provided at the center axis of the inner wall of the adapter plate (210), and a second adapter shaft (212) is rotatably connected to the inner wall of the second connecting groove (211).

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