Noise reduction half shaft with high transmission efficiency

Abstract

The utility model discloses a noise reduction half shaft with high transmission efficiency, which relates to the technical field of half shafts and comprises a half shaft body, a chromium plating layer is arranged on the circumferential surface of the half shaft body through a plating layer, an input end is arranged at the left side end of the half shaft body, and an output end is arranged at the right side end of the half shaft body. The axle shaft comprises an axle shaft body, two bearing bases are arranged on the circumferential surface of the axle shaft body in a penetrating mode, a connecting plate is fixedly installed between the two bearing bases, two supporting rods are fixedly installed at the upper end of the connecting plate, and rubber rings are fixedly installed at the upper ends of the two supporting rods. According to the half shaft, the connecting plate is arranged on the half shaft body, then nitriding or coating treatment is conducted on the surface of the connecting plate, the surface of the connecting plate is subjected to special treatment so as to reduce friction noise, and therefore noise can be effectively reduced when the half shaft body rotates, the two rubber rings arranged on the connecting plate are made of rubber damping materials, vibration can be effectively absorbed, noise transmission can be effectively reduced, and noise is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of half shafts, in particular to a noise-reducing half shaft with high transmission efficiency. Background Art

[0002] The half shaft of a car is a solid shaft that transmits power between the differential and the drive wheel. Its inner end is connected to the differential half shaft gear, while the outer end is connected to the hub of the drive wheel. The torque transmitted from the differential passes through the half shaft, hub, etc., and is finally transmitted to the wheel;

[0003] At present, the existing electric vehicle half shaft (such as patent number: CN205311236U) discloses a spline tooth (1), a quenching area (2), a spline (3), a spline shaft (4), a flat surface (5) on the flange, a flange (6), a concave surface (7), a connecting bolt hole (8), a bearing neck (9), a disassembly threaded hole (10) and a positioning pin hole (11). One end of the shaft body is provided with a flange (6) connected to the bridge body, and the other end of the shaft body is provided with a spline (3) and a spline tooth (1). The flange (6) is provided with a connecting bolt hole (8) and a disassembly threaded hole (10). The quenching hardness of the quenching area (2) on the spline tooth (1) is HRC48-HRC50, and the quenching hardness of the concave surface (7) of the flange (6) and the bearing neck (9) is HRC42-HRC45. After quenching, the half shaft needs to be subjected to magnetic flaw detection.

[0004] However, during the implementation of the above technical solution, it was found that at least the following technical problems exist: currently, during driving, the surface of the half-axle contacts the bearing or other components, and excessive noise will affect the driver's auditory perception ability and reduce the perception of the driving environment. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a noise-reducing half-shaft with high transmission efficiency, which solves the technical problem that during driving, the surface of the half-shaft contacts with bearings or other components, causing excessive noise to affect the driver's auditory perception ability and reduce the perception of the driving environment.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A noise-reducing half-shaft with high transmission efficiency comprises a half-shaft body, the circumferential surface of the half-shaft body is provided with a chrome-plating layer through plating, the left end of the half-shaft body is provided with an input end, the right end of the half-shaft body is provided with an output end, two bearing bases are penetrated through the circumferential surface of the half-shaft body, a connecting plate is fixedly installed between the two bearing bases, two support rods are fixedly installed on the upper end of the connecting plate, and rubber rings are fixedly installed on the upper ends of the two support rods.

[0010] Preferably, the two rubber rings are sleeved on the circumferential surface of the half-shaft body, and the two bearing bases are provided with rotating bearings.

[0011] Preferably, the two rotating bearings are sleeved on the circumferential surface of the half-shaft body, the two rotating bearings are threadedly connected with hexagonal locking screws, and the ends of the two hexagonal locking screws are in contact with the circumferential surface of the half-shaft body.

[0012] (III) Beneficial effects

[0013] 1. The new type adopts alloy steel as the base material for the half-shaft body, and then uses nitriding or plating treatment on the surface to specially treat its surface to reduce friction noise, so that the noise can be effectively reduced when the half-shaft body is rotated. In addition, the two rubber rings arranged on the connecting plate use rubber vibration-damping materials, which can effectively absorb vibration, reduce noise transmission, and further reduce noise.

[0014] Second, the present invention adopts a double-bearing support structure by arranging hexagonal locking screws on two rotating bearings and two rotating bearings, thereby effectively improving the stability of the half-shaft body during rotation and effectively improving the transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural diagram of the entire utility model;

[0017] Figure 2 This is a structural diagram of the half-axle body of the utility model;

[0018] Figure 3 This is a structural diagram of the rotary bearing of the utility model;

[0019] Figure 4 It is a structural diagram of the bearing base of the utility model.

[0020] Legend: 11, bearing base; 12, rotating bearing; 13, hexagon socket lock screw; 21, connecting plate; 22, support rod; 23, rubber ring; 31, half-shaft body; 32, input end; 33, chrome plating layer; 34, output end. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a noise-reducing half-axle with high transmission efficiency, which effectively solves the problem that the surface of the half-axle contacts with bearings or other components during driving, and excessive noise affects the driver's auditory perception ability and reduces the perception of the driving environment. The new type adopts alloy steel as the basis for the half-axle body, and then nitriding or plating the surface to perform special surface treatment to reduce friction noise, thereby effectively reducing noise when the half-axle body rotates, and the two rubber rings arranged on the connecting plate are made of rubber vibration-damping material, which can effectively absorb vibration, reduce noise transmission, and further reduce noise.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application is to effectively solve the technical problem that the surface of the half shaft contacts the bearing or other components during driving, and the excessive noise will affect the driver's auditory perception ability and reduce the perception of the driving environment. The overall idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides a noise-reducing half shaft with high transmission efficiency, including a half shaft body 31, a chrome-plated layer 33 is provided on the circumferential surface of the half shaft body 31 through plating, an input end 32 is provided at the left end of the half shaft body 31, an output end 34 is provided at the right end of the half shaft body 31, and two bearing bases 11 are penetrated on the circumferential surface of the half shaft body 31. The half shaft body 31 of the device is based on alloy steel material, and the surface is nitrided or plated, and the surface is specially treated to reduce friction noise. When the half shaft body 31 of the device is in use, The user inserts the half-shaft body 31 through the rotating bearings 12 on the two bearing bases 11. At this time, the half-shaft body 31 is inserted into the two rubber rings 23 at the same time. When the half-shaft body 31 moves to a certain position, the user uses a hexagonal tool to lock the two hexagonal locking screws 13. At this time, the two hexagonal locking screws 13 will fit tightly with the circumferential surface of the half-shaft body 31, so that the half-shaft body 31 and the two rotating bearings 12 can be fixed. After that, the two bearing bases 11 can be fixed to the vehicle installation position by bolts. A connecting plate 21 is fixedly installed between the two ends of the connecting plate 21, two support rods 22 are fixedly installed on the upper end of the two support rods 22, and rubber rings 23 are fixedly installed on the upper ends of the two support rods 22. The two rubber rings 23 are sleeved on the circumferential surface of the half-shaft body 31. The two bearing bases 11 are provided with rotating bearings 12, and the two rotating bearings 12 are sleeved on the circumferential surface of the half-shaft body 31. The two rotating bearings 12 are connected with hexagonal locking screws 13 through threads, and the ends of the two hexagonal locking screws 13 are in contact with the circumferential surface of the half-shaft body 31. The new type adopts alloy steel as the basis for the half-shaft body 31 , and then nitriding or plating treatment is used on the surface, and its surface is specially treated to reduce friction noise, so that the noise can be effectively reduced when the half-shaft body 31 rotates, and the two rubber rings 23 arranged on the connecting plate 21 use rubber vibration-damping materials, which can effectively absorb vibration and reduce noise transmission, and further reduce noise. The new type adopts a double-bearing support structure by arranging the hexagonal locking screws 13 on the two rotating bearings 12 and the two rotating bearings 12, thereby effectively improving the stability of the half-shaft body 31 during rotation, and effectively improving the transmission efficiency.

[0025] Working principle: The semi-axle body 31 of the device is based on alloy steel material, and the surface is nitrided or plated, and its surface is specially treated to reduce friction noise. When the semi-axle body 31 of the device is in use, the user inserts the semi-axle body 31 through the rotating bearings 12 on the two bearing bases 11, and the semi-axle body 31 is inserted into the two rubber rings 23 at the same time. When the semi-axle body 31 moves to a certain position, the user uses a hexagonal tool to lock the two hexagonal locking screws 13. At this time, the two hexagonal locking screws 13 will fit tightly with the circumferential surface of the semi-axle body 31, so that the semi-axle body 31 can be fixed with the two rotating bearings 12, and then the two shafts can be connected. The bearing base 11 is fixed to the automobile installation position by bolts. The present invention adopts alloy steel as the basis for the half-shaft body 31, and then performs nitriding or coating treatment on the surface, and performs special treatment on its surface to reduce friction noise, so that the noise can be effectively reduced when the half-shaft body 31 rotates. In addition, the two rubber rings 23 arranged on the connecting plate 21 adopt rubber vibration-damping material, which can effectively absorb vibration and reduce noise transmission, thereby further reducing noise. The present invention adopts a double-bearing support structure by arranging the hexagonal locking screws 13 on the two rotating bearings 12 and the two rotating bearings 12, thereby effectively improving the stability of the half-shaft body 31 during rotation and effectively improving the transmission efficiency.

[0026] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A noise-reducing half shaft with high transmission efficiency, comprising a half shaft body (31), characterized in that: The circumferential surface of the semi-shaft body (31) is provided with a chrome-plated layer (33) by plating, the left end of the semi-shaft body (31) is provided with an input end (32), and the right end of the semi-shaft body (31) is provided with an output end (34); Two bearing bases (11) are provided through the circumferential surface of the semi-axle body (31), a connecting plate (21) is fixedly installed between the two bearing bases (11), two support rods (22) are fixedly installed on the upper end of the connecting plate (21), and rubber rings (23) are fixedly installed on the upper ends of the two support rods (22).

2. A noise-reducing half shaft with high transmission efficiency according to claim 1, characterized in that: The two rubber rings (23) are both sleeved on the circumferential surface of the half-shaft body (31).

3. A noise-reducing half shaft with high transmission efficiency according to claim 2, characterized in that: A rotating bearing (12) is provided in each of the two bearing bases (11).

4. A noise-reducing half shaft with high transmission efficiency according to claim 3, characterized in that: The two rotating bearings (12) are both sleeved on the circumferential surface of the half-shaft body (31).

5. A noise-reducing half shaft with high transmission efficiency according to claim 4, characterized in that: The two rotating bearings (12) are both connected with hexagonal locking screws (13) via threads.

6. A noise-reducing half shaft with high transmission efficiency according to claim 5, characterized in that: The ends of the two hexagonal locking screws (13) are both in contact with the circumferential surface of the half-shaft body (31).

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