Light driving shaft assembly

Abstract

The utility model provides a light driving shaft assembly, which relates to the technical field of automobile parts and comprises a first shaft body. When the oil injection device is used, the oil injection assembly is arranged in the inner wall of the fixed ball cage, so that when the oil injection device is inserted into the oil injection pipe, lubricating oil enters the position between the first ring block and the second ring block, the internal pressure of the oil injection pipe is increased, the sealing block is forced to downwards extrude the spring, and the spring deforms and shrinks; the sealing block slides along the surface of the guide rod, a gap with a certain size is formed between the sealing block and the second ring block, injected lubricating oil can continuously enter the fixed ball cage from the gap, after the lubricating oil is added, the internal pressure of the oil injection pipe disappears, and the spring can drive the sealing block to abut against the bottom of the second ring block under the action of elastic reset. And a sealing effect is achieved, a worker can conveniently and rapidly add lubricating oil into the fixed ball cages at the two ends of the driving shaft assembly, friction of internal matching parts of the driving shaft assembly is reduced, and the using effect of the light driving shaft assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile components, in particular to a light drive shaft assembly. Background Art

[0002] The automobile drive shaft assembly is an important component of the automobile. One end of the automobile drive shaft is connected to the universal joint at the power output end of the automobile gearbox, and the other end of the automobile drive shaft is connected to the universal joint at the power input part of the automobile wheel. The function of the automobile drive shaft is to transfer torque between the automobile gearbox and the wheels.

[0003] The drive shaft will have friction when being driven. In order to reduce the friction, lubricating oil needs to be added to the matching parts in the fixed ball cage. In the prior art, when adding lubricating oil, it is usually necessary to disassemble the fixed ball cage and other covering parts to expose their internal structure, and then add lubricating liquid. After the addition is completed, the fixed ball cage and other covering parts are fixed, which makes it inconvenient to add lubricating oil to the drive shaft assembly. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that when adding lubricating oil, it is usually necessary to dismantle shielding parts such as fixed ball cages to expose their internal structures, and then add lubricating liquid. After the addition is completed, the fixed ball cages and other shielding parts are fixed, which makes it inconvenient to add lubricating oil to the drive shaft assembly. A light drive shaft assembly is proposed to solve the problem that when adding lubricating oil, it is usually necessary to dismantle shielding parts such as fixed ball cages to expose their internal structures, and then add lubricating liquid.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a light drive shaft assembly, comprising: a first shaft body, the two ends of the first shaft body are respectively fixedly connected to the second shaft body, the outer surfaces of the two second shaft bodies are respectively provided with fixed ball cages at positions away from the first shaft body, and dust covers are respectively provided between the two fixed ball cages and the two second shaft bodies; an oil injection assembly, the oil injection assembly is provided in two groups, and the two groups of oil injection assemblies are respectively provided on the outer surfaces of the two fixed ball cages, the oil injection assembly comprises an oil injection pipe, the outer surface of the oil injection pipe is fixedly penetrated through the outer surface of the fixed ball cage at a position near the bottom, the inner surface of the oil injection pipe is fixedly connected to a mounting frame near the bottom, a plurality of through holes are equidistantly opened near the edge of the inner bottom of the mounting frame, the through holes are connected to the fixed ball cage, a guide rod is fixedly connected to the center of the inner bottom of the mounting frame, a sealing block is provided on the outer surface of the guide rod, a second ring block is fixedly connected to the top of the mounting frame, the second ring block and the sealing block are matched, and the inner surface of the oil injection pipe is fixedly connected to the first ring block near the top.

[0006] Preferably, a spring is sleeved on the outer surface of the guide rod, and the spring is matched with the sealing block.

[0007] Preferably, a sliding sleeve is fixedly connected to the inner surface of the sealing block, and the inner surface of the sliding sleeve is slidably connected to the outer surface of the guide rod.

[0008] Preferably, a sealing ring is arranged near the center of the top of the sealing block, and the sealing ring is matched with the second ring block.

[0009] Preferably, an elastic ring is provided on the inner surface of the oil filling pipe near the top, and the elastic ring is located above the first ring block.

[0010] Preferably, the interior of the first shaft body is hollow, and the interior of the second shaft body is solid.

[0011] Preferably, a plurality of first reinforcing ribs are equidistantly fixedly connected to the inner surface of the first shaft, and a plurality of second reinforcing ribs are equidistantly fixedly connected to the outer surfaces of the plurality of first reinforcing ribs.

[0012] Preferably, the second reinforcing ribs are all hollow ring-shaped, and the outer surfaces of a plurality of the second reinforcing ribs are all fixedly connected to the inner surface of the first shaft body.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when in use, an oil filling assembly is arranged in the inner wall of the fixed ball cage, so that when the oil filling device is inserted into the oil filling pipe, the lubricating oil enters between the first ring block and the second ring block, and the internal pressure of the oil filling pipe increases, forcing the sealing block to squeeze the spring downward, so that after the sealing block is deformed and contracted, a certain size of gap is formed between the sealing block and the second ring block, and the injected lubricating oil will continuously enter the fixed ball cage through this gap. After the lubricating oil is added, the internal pressure of the oil filling pipe disappears, and the spring will drive the sealing block to contact the bottom of the second ring block under the action of elastic reset, which plays a sealing role, making it convenient for personnel to quickly add lubricating oil to the fixed ball cages at both ends of the drive shaft assembly, reduce the friction of its internal mating parts, and improve the use effect of the light drive shaft assembly.

[0015] 2. In the utility model, when in use, the overall weight of the drive shaft is reduced by setting the first shaft body to a hollow tube shape, and the strength of the lightweight drive shaft assembly is improved by fixing a plurality of first reinforcing ribs and second reinforcing ribs equidistantly connected to the inner surface of the hollow first shaft body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a light drive shaft assembly is proposed for the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 The utility model provides a structural schematic diagram of an oil injection component of a light drive shaft assembly;

[0019] Figure 4 A schematic diagram of the structure of a mounting frame for a light drive shaft assembly is provided for the utility model;

[0020] Figure 5 The utility model provides a schematic diagram of the first shaft structure of a light drive shaft assembly.

[0021] Legend: 1. First shaft; 2. Second shaft; 3. Dust cover; 4. Oil filling assembly; 401. Oil filling pipe; 402. Mounting frame; 403. Through hole; 404. Spring; 405. Guide rod; 406. Sealing block; 407. Sealing ring; 408. Sliding sleeve; 409. First ring block; 410. Elastic ring; 411. Second ring block; 5. Fixed ball cage; 6. First reinforcing rib; 7. Second reinforcing rib. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 5As shown, the utility model provides a light drive shaft assembly, including: a first shaft body 1, two ends of the first shaft body 1 are respectively fixedly connected with second shaft bodies 2, outer surfaces of the two second shaft bodies 2 are respectively provided with fixed ball cages 5 at positions away from the first shaft body 1, and dust covers 3 are respectively provided between the two fixed ball cages 5 and the two second shaft bodies 2; an oil injection component 4, the oil injection component 4 is provided in two groups, and the two groups of oil injection components 4 are respectively provided on the outer surfaces of the two fixed ball cages 5, the oil injection component 4 includes an oil injection pipe 401, the outer surface of the oil injection pipe 401 is fixedly passed through the outer surface of the fixed ball cage 5 at a position near the bottom, the inner surface of the oil injection pipe 401 is fixedly connected with a mounting frame 402 near the bottom, and the inner bottom of the mounting frame 402 is equidistantly provided with a plurality of through holes 403 near the edge, the through holes 403 are connected with the fixed ball cage 5, and the inner bottom of the mounting frame 402 is provided with a plurality of through holes 403 at a distance. A guide rod 405 is fixedly connected to the center, a sealing block 406 is arranged on the outer surface of the guide rod 405, a second ring block 411 is fixedly connected to the top of the mounting frame 402, and the second ring block 411 is matched with the sealing block 406. A first ring block 409 is fixedly connected to the inner surface of the oil filling pipe 401 near the top, a spring 404 is sleeved on the outer surface of the guide rod 405, and the spring 404 is matched with the sealing block 406. A sliding sleeve 408 is fixedly connected to the inner surface of the sealing block 406, and the inner surface of the sliding sleeve 408 is slidably connected to the outer surface of the guide rod 405. A sealing ring 407 is arranged near the center of the top of the sealing block 406, and the sealing ring 407 is matched with the second ring block 411. An elastic ring 410 is arranged near the top of the inner surface of the oil filling pipe 401, and the elastic ring 410 is located above the first ring block 409.

[0025] The effect achieved by the entire embodiment 1 is that when the drive shaft is oiled for maintenance, first align the slender oil filling port of the oil filling device with any oil filling pipe 401 and insert it, so that when it is inserted into the elastic ring 410 and the central circular hole of the first ring block 409 in sequence, the first ring block 409 will limit the oil filling port of the oil filling device, so that a certain size of gap is formed between it and the second ring block 411. At the same time, the elastic ring 410 is made of rubber sealing material, and the gap at the connection between the oil filling port of the oil filling device and the first ring block 409 is filled and sealed by relying on the elastic effect of the rubber. When the lubrication enters between the first ring block 409 and the second ring block 411, under the action of continuous delivery pressure, the sealing block 406 will squeeze the spring 404 below, causing the spring 404 to deform and shrink, and the sealing block 406 slides down on the outer surface of the guide rod 405 through the sliding sleeve 408. A gap of a certain size is created between the top of the sealing block 406 and the bottom of the second ring block 411, and the softened oil will continuously flow into the interior of the mounting frame 402 from the gap, and enter the fixed ball cage 5 from multiple through holes 403 to add lubricating oil. When the oil filling device is separated from the oil filling pipe 401, the oil between the first ring block 409 and the second ring block 411 lacks continuous pressure, so that the spring 404 will push the sealing block 406 under the action of elastic reset, so that it moves up and contacts the bottom of the second ring block 411. At the same time, the sealing ring 407 at its top edge will be on the inner side of the second ring block 411, tightly fitting with the inner surface of the second ring block 411, playing a sealing role, making it convenient for personnel to quickly add lubricating oil to the fixed ball cage 5 at both ends of the drive shaft assembly, reducing the friction of its internal mating parts, and improving the use effect of the light drive shaft assembly.

[0026] Embodiment 2, as Figure 1-Figure 5 As shown, the interior of the first shaft body 1 is hollow, and the interior of the second shaft body 2 is solid. The inner surface of the first shaft body 1 is fixedly connected with a plurality of first reinforcing ribs 6 at equal intervals, and the outer surfaces of the plurality of first reinforcing ribs 6 are fixedly connected with a plurality of second reinforcing ribs 7 at equal intervals. The second reinforcing ribs 7 are hollow ring-shaped, and the outer surfaces of the plurality of second reinforcing ribs 7 are fixedly connected to the inner surface of the first shaft body 1.

[0027] The effect achieved by the entire embodiment 2 is that, when in use, the overall weight of the drive shaft is reduced by setting the first shaft body 1 to a hollow tube shape, and dust covers 3 are respectively arranged between the outer surface of the solid second shaft body 2 fixedly connected at both ends and the two fixed ball cages 5 to prevent dust from entering between the drive shaft and the fixed ball cages 5, thereby playing a protective role. In addition, a plurality of first reinforcing ribs 6 and second reinforcing ribs 7 are equidistantly fixedly connected to the inner surface of the hollow first shaft body 1, thereby improving the strength of the lightweight drive shaft assembly.

[0028] Working principle: When the drive shaft is being oiled and maintained, first align the slender oil filling port of the oil filling device with any oil filling pipe 401 and insert it, so that when it is inserted into the elastic ring 410 and the central circular hole of the first ring block 409 in sequence, the first ring block 409 will limit the oil filling port of the oil filling device, so that a certain size of gap is formed between it and the second ring block 411. At the same time, the elastic ring 410 is made of rubber sealing material, and the gap at the connection between the oil filling port of the oil filling device and the first ring block 409 is filled and sealed by relying on the elastic effect of the rubber. When the lubrication enters between the first ring block 409 and the second ring block 411, under the action of continuous delivery pressure, the sealing block 406 will squeeze the spring 404 below, causing the spring 404 to deform and shrink, and the sealing block 406 slides down on the outer surface of the guide rod 405 through the sliding sleeve 408, so that a certain size of gap is generated between the top of the sealing block 406 and the bottom of the second ring block 411, and the softened oil will continuously enter the mounting frame 40 from this gap. 2, and add lubricating oil into the fixed ball cage 5 from multiple through holes 403. When the oil filling device is separated from the oil filling pipe 401, the oil between the first ring block 409 and the second ring block 411 lacks continuous pressure, so that the spring 404 will push the sealing block 406 under the action of elastic reset, so that it moves up and contacts the bottom of the second ring block 411. At the same time, the sealing ring 407 at its top edge will be on the inner side of the second ring block 411, tightly fitting with the inner surface of the second ring block 411, playing a sealing role. By setting the first shaft body 1 to a hollow tube shape, the overall weight of the drive shaft is reduced. Dust covers 3 are respectively arranged between the outer surface of the solid second shaft body 2 fixedly connected at both ends and the two fixed ball cages 5 to prevent dust from entering between the drive shaft and the fixed ball cage 5, playing a protective role. In addition, by equidistantly fixedly connecting multiple first reinforcing ribs 6 and second reinforcing ribs 7 on the inner surface of the hollow first shaft body 1, the strength of the lightweight drive shaft assembly is improved.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A lightweight drive shaft assembly, characterized in that: include: A first shaft body (1), wherein the two ends of the first shaft body (1) are respectively fixedly connected to second shaft bodies (2), fixed ball cages (5) are respectively arranged on the outer surfaces of the two second shaft bodies (2) at positions away from the first shaft body (1), and dust covers (3) are respectively arranged between the two fixed ball cages (5) and the two second shaft bodies (2); The oil injection assembly (4) is provided in two groups, and the two groups of the oil injection assembly (4) are respectively arranged on the outer surfaces of two fixed ball cages (5). The oil injection assembly (4) comprises an oil injection pipe (401), and the outer surface of the oil injection pipe (401) is fixedly penetrated through the outer surface of the fixed ball cage (5) at a position near the bottom, and the inner surface of the oil injection pipe (401) is fixedly connected to a mounting frame (402) near the bottom, and the inner bottom of the mounting frame (402) is provided with a plurality of through holes (402) at equal intervals near the edge. 3), the through hole (403) is connected to the fixed ball cage (5), a guide rod (405) is fixedly connected to the center of the inner bottom of the mounting frame (402), a sealing block (406) is arranged on the outer surface of the guide rod (405), a second ring block (411) is fixedly connected to the top of the mounting frame (402), the second ring block (411) and the sealing block (406) are matched, and a first ring block (409) is fixedly connected to the inner surface of the oil injection pipe (401) near the top.

2. The lightweight drive shaft assembly according to claim 1, characterized in that: The outer surface of the guide rod (405) is sleeved with a spring (404), and the spring (404) and the sealing block (406) are matched.

3. The lightweight drive shaft assembly according to claim 1, characterized in that: The inner surface of the sealing block (406) is fixedly connected with a sliding sleeve (408), and the inner surface of the sliding sleeve (408) is slidably connected to the outer surface of the guide rod (405).

4. The lightweight drive shaft assembly according to claim 3, characterized in that: A sealing ring (407) is arranged near the center of the top of the sealing block (406), and the sealing ring (407) is matched with the second ring block (411).

5. The lightweight drive shaft assembly according to claim 1, characterized in that: An elastic ring (410) is arranged on the inner surface of the oil filling pipe (401) near the top, and the elastic ring (410) is located above the first ring block (409).

6. The lightweight drive shaft assembly according to claim 1, characterized in that: The interior of the first shaft body (1) is hollow, and the interior of the second shaft body (2) is solid.

7. The lightweight drive shaft assembly according to claim 6, characterized in that: The inner surface of the first shaft (1) is fixedly connected with a plurality of first reinforcing ribs (6) at equal intervals, and the outer surfaces of the plurality of first reinforcing ribs (6) are fixedly connected with a plurality of second reinforcing ribs (7) at equal intervals.

8. The lightweight drive shaft assembly according to claim 7, characterized in that: The second reinforcing ribs (7) are all hollow ring-shaped, and the outer surfaces of a plurality of the second reinforcing ribs (7) are all fixedly connected to the inner surface of the first shaft body (1).

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