Detachable transmission shaft resonance block

Abstract

The utility model discloses a detachable transmission shaft resonance block, which relates to the technical field of transmission shaft resonance blocks, and is mainly formed by two detachable metal pieces, one side surface of each metal piece is fixedly provided with a semi-ring connecting ring, and the other surface of each metal piece is provided with a connecting ring groove matched with the connecting ring. A plurality of gas injection cavities communicating with the inner side of the connecting ring groove are formed in the outer wall of the metal piece, and elastic clamping pieces are arranged in the gas injection cavities; according to the utility model, through the resonance block formed by the two metal pieces, the locking screw rod and the locking nut, the two metal pieces can be conveniently assembled on the transmission shaft of the automobile up and down, so that the resonance block formed by the two metal pieces is connected with the transmission shaft into a whole, and the resonance frequency can be adjusted when the transmission shaft runs and vibrates; resonance is avoided when the transmission shaft shakes, so that the comfort of passengers in the vehicle and the safety of the vehicle body during driving are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drive shaft resonance blocks, and specifically relates to a detachable drive shaft resonance block. Background Technique

[0002] In the field of automobile manufacturing, noise, vibration, and harshness (Noise, Vibration, Harshness, abbreviated as NVH) are recognized as important indicators for measuring automobile comfort.

[0003] With the application of new technologies in the field of automobile R & D, the requirements for the overall vehicle mode and NVH performance of new energy vehicles are getting higher and higher. In particular, the overall vehicle comfort during driving needs to be improved, and the vibration and noise of the drive shaft need to be reduced. In view of the mature application cases of vibration absorbers in the chassis system and power system, it is now proposed to add a vibration absorber to the automobile drive shaft to achieve the function of shock absorption and noise reduction, which is a bold innovation. Content of the Utility Model

[0004] Aiming at the above problems of the prior art, the purpose of the utility model is to provide a detachable drive shaft resonance block.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a detachable drive shaft resonance block, which is mainly composed of two semi-circular metal parts that can be disassembled. Assembly grooves are provided on both sides of the outer wall of the metal part. A locking screw is arranged in the upper assembly groove. The locking screw vertically penetrates into the lower assembly groove and is threadedly connected with a locking nut. A semi-circular connecting ring is fixed on one side of the metal part. A connecting ring groove adapted to the connecting ring is provided on the other side of the metal part. A plurality of air injection cavities communicating with the inner side of the connecting ring groove are provided on the outer wall of the metal part. An elastic clamping member is arranged in the air injection cavity.

[0006] Preferably, the elastic clamping member includes a locking block slidably arranged on one side inside the air injection cavity and a connecting block fixed on the other side inside the air injection cavity. A tension spring is fixedly connected between the connecting block and the locking block. And a vent hole is penetrated through the connecting block. A locking groove adapted to the locking block is provided on the outer wall of the connecting ring.

[0007] Preferably, an air injection seat with a cavity inside is also fixed on the outer wall of the metal part. The air injection cavity is communicated with the air injection seat.

[0008] Preferably, an air injection nozzle is fixedly penetrated through the outer wall of the air injection seat. A valve core is arranged inside the air injection nozzle.

[0009] Preferably, the metal part is formed by vulcanizing a 533g mass block and rubber. The rubber used for vulcanization is nitrile rubber.

[0010] Compared with the prior art, the advantages of the present utility model are as follows:

[0011] (1) Through the resonance block composed of two metal parts, using the locking screw and the locking nut, it is convenient to assemble the two metal parts up and down on the automotive drive shaft, so that the resonance block composed of the two metal parts is integrally connected to the drive shaft. Furthermore, when the drive shaft operates and vibrates, it plays a role in adjusting the resonance frequency, avoiding resonance when the drive shaft vibrates, thereby improving the comfort of the passengers in the vehicle and the safety of the vehicle body during driving.

[0012] (2) Through the setting of the connecting ring, the connecting ring groove and the elastic clamping part, the connecting ring on one group of metal parts is aligned and inserted into the inner side of the connecting ring groove on the other group of metal parts, so that the connecting ring is fixed inside the connecting ring groove under the action of the elastic clamping part. In this way, the horizontal splicing of the two groups of metal parts is realized, which is convenient for manual adjustment of the weight of the resonance block by splicing multiple groups of metal parts according to the use environment, enhancing the practicability. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the separated structure of the present utility model;

[0015] Figure 3 is a schematic diagram of the internal structure of the metal part of the present utility model;

[0016] Figure 4 is the present utility model Figure 3 Schematic diagram of the structure at position A in

[0017] The reference numerals in the drawings are:

[0018] 1, metal part; 2, assembly groove; 3, locking screw; 4, locking nut; 5, connecting ring; 6, connecting ring groove; 7, gas filling seat; 8, gas injection cavity; 9, locking block; 10, locking groove; 11, connecting block; 12, tension spring; 13, gas injection nozzle. Detailed Embodiment

[0019] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0020] Referring to Figures 1-4 as shown, a detachable drive shaft resonance block, which is mainly composed of two semi-circular metal parts 1 that can be detached. Assembly grooves 2 are provided on both sides of the outer wall of the metal part 1. A locking screw 3 is arranged in the upper assembly groove 2, and the locking screw 3 vertically penetrates into the lower assembly groove 2 and is threadedly connected with a locking nut 4;

[0021] The metal part 1 is formed by vulcanizing a 533g mass block with rubber. The rubber used for vulcanization is nitrile rubber.

[0022] Through the resonance block composed of two metal parts 1, using the locking screw 3 and the locking nut 4, it is convenient to assemble the two metal parts 1 up and down on the automobile drive shaft, so that the resonance block composed of the two metal parts 1 is connected integrally with the drive shaft. Furthermore, when the drive shaft rotates and vibrates, it plays a role in adjusting the resonance frequency, avoiding resonance when the drive shaft shakes, thereby improving the comfort of the passengers in the car and the safety of the vehicle body during driving.

[0023] And through the nitrile rubber used for vulcanizing the metal part 1, the rubber on the outer layer of the metal part 1 can effectively have excellent damping and ozone aging resistance, which can meet the various performance indicators of the product and reduce the interference of external environmental factors on it.

[0024] Furthermore, referring to Figures 1-4 As shown, it is worth noting that a semi-circular connecting ring 5 is fixed on one side surface of the metal part 1, a connecting ring groove 6 adapted to the connecting ring 5 is opened on the other surface of the metal part 1, and a plurality of air injection cavities 8 communicating with the inner side of the connecting ring groove 6 are opened on the outer wall of the metal part 1. An elastic clamping member is arranged in the air injection cavity 8.

[0025] Through the settings of the connecting ring 5, the connecting ring groove 6 and the elastic clamping member, the connecting ring 5 on a group of metal parts 1 is aligned and inserted into the inner side of the connecting ring groove 6 on the other group of metal parts 1, so that the connecting ring 5 is fixed on the inner side of the connecting ring groove 6 under the action of the elastic clamping member. In this way, the horizontal splicing of the two groups of metal parts 1 is realized, which is convenient for manual adjustment of the weight of the resonance block by splicing multiple groups of metal parts 1 according to the use environment, enhancing the practicability.

[0026] Furthermore, referring to Figure 3 and Figure 4 As shown, it is worth noting that an air filling seat 7 with a cavity inside is also fixed on the outer wall of the metal part 1, and the air injection cavity 8 is communicated with the air filling seat 7.

[0027] The elastic clamping member includes a locking block 9 slidably arranged on one side inside the air injection cavity 8 and a connecting block 11 fixed on the other side inside the air injection cavity 8. A tension spring 12 is fixedly connected between the connecting block 11 and the locking block 9. And a ventilation hole is penetrated through the connecting block 11, and a locking groove 10 adapted to the locking block 9 is opened on the outer wall of the connecting ring 5.

[0028] An air injection nozzle 13 is fixedly penetrated through the outer wall of the air filling seat 7, and a valve core is arranged inside the air injection nozzle 13.

[0029] After inserting the connecting ring 5 on a set of metal parts 1 into the inner side of the connecting ring groove 6 on another set of metal parts 1, then externally connect an air injection nozzle 13 to an air pump through a hose, and then use the air pump to inflate, so that the gas output by the air pump breaks through the air injection nozzle 13 and enters the inside of the gas filling seat 7 and the air injection cavity 8, thereby enabling the locking block 9 to slide from the inside of the air injection cavity 8 into the inside of the locking groove 10 under the air pressure, so as to achieve the fixing effect of the connecting ring 5 inside the connecting ring groove 6 and the effect of splicing the two sets of metal parts 1 left and right;

[0030] And during the process of the locking block 9 sliding into the inner side of the locking groove 10, the locking block 9 synchronously stretches the tension spring 12 to deform. Then, when it is necessary to disassemble and separate the two sets of metal parts 1 later, use a thimble to squeeze the valve core to release the air inside the gas filling seat 7. In this way, the air pressure received by the locking block 9 is reduced, and the locking block 9 can reset and contract inside the air injection cavity 8 under the elastic force of the tension spring 12, withdraw from the inside of the locking groove 10, and release the fixing of the connecting ring 5 inside the connecting ring groove 6, facilitating the disassembly and separation of the two sets of metal parts 1.

[0031] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable drive shaft resonance block, characterized in that, The resonant block is mainly composed of two semicircular metal parts (1) which are detachably formed. Assembly grooves (2) are provided on both sides of the outer wall of the metal part (1). A locking screw (3) is arranged in the upper assembly groove (2). The locking screw (3) vertically penetrates into the lower assembly groove (2) and is threadedly connected with a locking nut (4). A semi-circular connecting ring (5) is fixed on one side surface of the metal part (1). A connecting ring groove (6) adapted to the connecting ring (5) is provided on the other surface of the metal part (1). A plurality of air injection cavities (8) communicating with the inner side of the connecting ring groove (6) are provided on the outer wall of the metal part (1). An elastic clamping member is arranged in the air injection cavity (8).

2. The detachable drive shaft resonance block according to claim 1, characterized in that, The elastic clamping member includes a locking block (9) slidably arranged on one side inside the air injection cavity (8) and a connecting block (11) fixed on the other side inside the air injection cavity (8). A tension spring (12) is fixedly connected between the connecting block (11) and the locking block (9). And a ventilation hole is penetratingly provided on the connecting block (11). A locking groove (10) adapted to the locking block (9) is provided on the outer wall of the connecting ring (5).

3. The detachable drive shaft resonance block according to claim 1, wherein An air filling seat (7) with a cavity inside is further fixed on the outer wall of the metal part (1). The air injection cavity (8) communicates with the air filling seat (7).

4. The detachable drive shaft resonance block according to claim 3, characterized in that, An air injection nozzle (13) is fixedly penetrated through the outer wall of the air filling seat (7). A valve core is arranged inside the air injection nozzle (13).

5. The detachable drive shaft resonance block according to claim 1, characterized in that, The metal part (1) is formed by vulcanizing a 533g mass block with rubber. The rubber used for vulcanization is nitrile rubber.

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