An axle assembly structure

Abstract

The application relates to the field of automobile axles, and discloses an axle assembly structure which comprises an axle pipe, a containing structure located at the middle of the axle pipe, a driving shaft and a transmission shaft which are installed in the axle pipe in a cross distribution and form meshing transmission relationship in the containing structure, and a scraping piece in the containing structure for scraping and cleaning meshing components on the driving shaft or the transmission shaft. The scraping piece is rotatable, and when moving, the scraping piece scrapes the tooth gap of the meshing components, thereby effectively cleaning the meshing position, avoiding abnormal wear of the gear, and collecting gear oil through the setting of a spraying assembly, and then throwing out the gear oil through centrifugal force. The method is superior to the splashing capacity of the gear itself, and the splashing capacity of the gear oil is enhanced, thereby enhancing the lubrication, cleaning and heat dissipation effects of the gear.

Description

Technical Field

[0001] This invention relates to the field of automotive axle technology, specifically to an axle assembly structure. Background Technology

[0002] A vehicle axle (also known as a chassis axle) is connected to the vehicle frame (or monocoque chassis) via the suspension, and wheels are mounted at both ends of it. The function of the axle is to bear the load of the vehicle and maintain its normal driving on the road;

[0003] The differential and reducer structures are installed inside the arched sealing structure in the middle of the axle. The differential and reducer form a transmission relationship through gear meshing.

[0004] To ensure the normal operation of the differential and reducer, gear oil needs to be injected into the arched sealing structure in the middle of the axle. The gear oil splashes out as the gears rotate, achieving lubrication, heat dissipation, and cleaning of the gears. However, during long-term operation, wear between the meshing structures forms fine metal debris, and the gear oil emulsifies, becoming viscous. As a result, the gears cannot easily move the viscous gear oil, which weakens the lubrication, cleaning, and heat dissipation effects of gear splashing. Consequently, the fine metal debris at the gear meshing position cannot be flushed away by the gear oil in time, leading to abnormal gear wear and difficulty in steering. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides an axle assembly structure to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides an axle assembly structure, comprising:

[0009] Bridge pipe; and

[0010] The receiving structure located in the middle of the bridge tube; and

[0011] The drive shaft and transmission shaft are installed inside the bridge tube in a cross-distribution manner and form a meshing transmission relationship within the receiving structure;

[0012] The interior of the housing structure has a scraping element for scraping and cleaning the meshing parts on the drive shaft or transmission shaft;

[0013] The scraping component, driven by the rotary drive device, rotates within the housing structure along the rotational trajectory of the drive shaft or transmission shaft and scrapes the tooth gaps on the meshing structure of the drive shaft or transmission shaft.

[0014] Preferably, the scraping member is connected to the drive shaft or transmission shaft and rotates synchronously with the drive shaft or transmission shaft. During rotation, the scraping member scrapes the tooth gaps on the meshing structure of the drive shaft or transmission shaft.

[0015] Preferably, the scraping element scrapes in a direction extending outward along the tooth gap.

[0016] Preferably, one end of the drive shaft rotates with one end of the housing structure via a bearing, and the drive shaft bridge tube is internally rotatably connected.

[0017] Preferably, the scraping element is provided in a plurality of parts and is evenly distributed circumferentially on the drive shaft or transmission shaft.

[0018] Preferably, the interior of the receiving structure is provided with a spray assembly, the spray assembly comprising:

[0019] A liquid storage structure is fixed to the outer wall of the drive shaft;

[0020] A storage cavity is formed inside the liquid storage structure;

[0021] The liquid inlet connects the storage cavity to the interior of the housing structure;

[0022] When the liquid outlet and the liquid storage structure rotate with the drive shaft and the transmission shaft, the liquid inside the storage chamber is thrown towards the meshing part on the transmission shaft or the drive shaft under the action of inertia.

[0023] Preferably, the liquid storage structure includes a shell and a rear cover, which are interlocked to form the storage cavity and the liquid inlet.

[0024] Preferably, the liquid inlet is a closed annular shape, and a micro oil pump is installed inside the receiving structure. The micro oil pump has a pipe installed at its oil outlet end, and the other end of the pipe is inserted into the liquid inlet and extends into the storage cavity.

[0025] Preferably, a filter element is installed inside the storage chamber. After the micro oil pump draws the liquid into the storage chamber, it is filtered by the filter element and then ejected from the outlet.

[0026] Preferably, the outer wall of the housing is connected to a rod, the liquid outlet extends into the rod and through to the outer end of the rod, and the scraper is connected to the outer wall of the rod.

[0027] Compared with the prior art, the present invention provides an axle assembly structure with the following advantages:

[0028] 1. The present invention provides a rotatable scraper inside the housing structure. When in motion, the scraper scrapes the tooth gaps of the meshing parts, thereby effectively cleaning the meshing parts and avoiding abnormal wear of the gears.

[0029] 2. The present invention can collect gear oil by setting up a spray assembly, and then throw it out by centrifugal force. This method is superior to the splashing ability of the gear itself. After the splashing ability of the gear oil is enhanced, the lubrication, cleaning and heat dissipation effects of the gear are improved.

[0030] 3. This invention provides a filter element inside the liquid storage structure. Before the gear oil is thrown out by the rotation of the liquid storage structure, the gear oil can be filtered by the filter element, thus keeping the gear oil clean at all times.

[0031] 4. After the cleaning action is completed, the scraper of the present invention needs to pass through the inside of the gear oil. Therefore, the scraper can be cleaned by the brushing action of the gear oil, so that the scraper can also be kept clean and the cleaning effect of the scraper can be optimized. Attached Figure Description

[0032] Figure 1 This is a perspective view of the overall axle of the present invention;

[0033] Figure 2 This is a structural diagram of the axle portion of the present invention;

[0034] Figure 3 This is a diagram showing the installation position of the filter element of the present invention in the axle;

[0035] Figure 4 This is an exploded view of the internal structure of the housing structure of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the scraping component and the engaging component of the present invention;

[0037] Figure 6 This is a schematic diagram of the movement state of the scraping component of the present invention;

[0038] Figure 7 This is a structural diagram of the installation of the housing and the rear cover of the present invention;

[0039] Figure 8 This is a schematic diagram of the separate structure of the housing and the rear cover of the present invention;

[0040] Figure 9 This is a cross-sectional view of the housing and rear cover of the present invention;

[0041] Figure 10 This is a cross-sectional view of the axle of the present invention;

[0042] Figure 11 This is a schematic diagram of the installation of the filter element, housing, and rear cover of the present invention;

[0043] Figure 12 This is a schematic diagram of the installation structure of the first and second shafts of the present invention.

[0044] In the diagram: 100, bridge tube; 200, drive shaft; 300, transmission shaft; 400, housing structure; 440a, storage chamber; 440b, inlet; 440c, outlet; 420, first shaft; 422, slot; 430, second shaft; 431, insert; 432, flange; 433, bolt; 440, housing; 441, rear cover; 442, filter element; 450, miniature oil pump; 460, pipe; 470, rod; 471, scraper. Detailed Implementation

[0045] Example:

[0046] Figure 1-12 The structural features disclosed in this invention are as follows:

[0047] The following is a detailed explanation:

[0048] like Figure 1-3 As shown, this embodiment discloses an axle assembly structure, including the following structure:

[0049] Bridge pipe 100;

[0050] The receiving structure 400 located in the middle of the bridge tube 100 is filled with gear oil. The aforementioned receiving structure 400 can be spherical, ellipsoidal, or any other shape that can achieve the wrapping effect.

[0051] like Figure 4 As shown, drive shaft 200 and transmission shaft 300 are installed inside bridge tube 100 in a cross-shaped distribution and form a meshing transmission relationship within housing structure 400. The two are meshed and transmitted through bevel gears. A first bevel gear 411 is installed on transmission shaft 300 and a second bevel gear 421 is installed on drive shaft 200. The first bevel gear 411 and the second bevel gear 421 mesh with each other.

[0052] Continue reading Figure 5 The interior of the housing structure 400 has a scraper 471 for scraping and cleaning the meshing parts on the drive shaft 200 or transmission shaft 300. The meshing parts are the first bevel gear 411 or the second bevel gear 421 mentioned above.

[0053] It should be noted that, as can be understood from the following text, the scraper 471 can be installed on the drive shaft 200 and the transmission shaft 300 and rotate accordingly. When the scraper 471 is installed on the drive shaft 200, the scraper 471 can clean the first bevel gear 411 on the transmission shaft 300. When the scraper 471 is installed on the transmission shaft 300, the scraper 471 can clean the second bevel gear 421 on the drive shaft 200.

[0054] It should also be noted that the aforementioned scraping component 471 can be a brush composed of multiple soft bristles. The soft material can be bent and adapt to the area being cleaned. It can be rubber, plastic or other soft materials, or it can be metal materials, such as iron wire, which can also achieve the same self-adaptive effect and has higher strength.

[0055] Driven by the rotary drive device, the scraping component 471 rotates within the receiving structure 400 along the rotation trajectory of the drive shaft 200 or the transmission shaft 300 and scrapes the tooth gaps on the meshing structure on the drive shaft 200 or the transmission shaft 300.

[0056] It should be noted that the rotary drive device that drives the scraper 471 to rotate can be a motor or other device with a rotational function.

[0057] As an optimized embodiment, the scraper 471 is connected to the drive shaft 300 or the drive shaft 200 and rotates synchronously with the drive shaft 300 or the drive shaft 200. When rotating, the scraper 471 scrapes the tooth gaps of the second bevel gear 421 on the drive shaft 200 or the first bevel gear 411 on the drive shaft 300.

[0058] As an optimized embodiment, the scraping element 471 scrapes along the direction extending outward from the tooth gap, such as... Figure 6 As shown, when the scraper 471 is driven to rotate, the movement trajectory of the scraper 471 matches the tooth gap of the first bevel gear 411. Through the self-adaptability of the scraper 471, the scraper 471 can completely fill the tooth gap and then scrape in the direction of outward extension of the tooth gap to clean the dirt in the tooth gap.

[0059] As an optimized embodiment, one end of the drive shaft 300 is rotated with one end of the housing structure 400 via a bearing, and the drive shaft 200 is internally rotatably connected to the bridge tube 100.

[0060] As an optimized implementation example, such as Figure 3-6 As shown, there are several scraping parts 471, which are evenly distributed in a circular pattern on the drive shaft 200 or transmission shaft 300.

[0061] As an optimized implementation example, such as Figure 7-9 As shown, a spray assembly is provided inside the housing structure 400. The spray assembly is used to collect gear oil and then throw the collected gear oil onto the transmission components of the axle. The spray assembly includes:

[0062] A liquid storage structure, fixed to the outer wall of the drive shaft 200, is used to store gear oil;

[0063] Storage cavity 440a is formed inside the liquid storage structure. Gear oil is injected into the storage cavity 440a. Due to the special shape of storage cavity 440a (see reference for specific shape), Figure 9 Therefore, when gear oil enters the storage chamber 440a and the liquid storage mechanism rotates with its own central axis as the rotation axis, the gear oil inside the storage chamber 440a will always be inside the storage chamber 440a and will not leak out.

[0064] The inlet 440b connects the storage chamber 440a with the interior of the receiving structure 400. The oil in the receiving structure 400 is injected into the storage chamber 440a from the inlet 440b through the micro oil pump 450 and the pipe 460 described below.

[0065] When the liquid outlet 440c and the liquid storage structure rotate with the drive shaft 200 and the transmission shaft 300, the liquid inside the storage chamber 440a is thrown towards the meshing part on the transmission shaft 300 or the drive shaft 200 under the action of inertia.

[0066] Of course, the direction of the liquid outlet 440c mentioned above needs to be towards the corresponding meshing part in order to achieve the spraying effect.

[0067] As an optimized implementation example, such as Figure 7-9 As shown, the liquid storage structure includes a housing 440 and a rear cover 441, which are interlocked to form a storage cavity 440a and a liquid inlet 440b.

[0068] It should be added that the shell 440 and the back cover 441 are interlocked and cannot be moved. The specific interlocking method can also be by glue, screws or threads.

[0069] In order to prevent the liquid storage mechanism from interfering with the oil inlet components when it rotates, the liquid inlet 440b is a closed annular shape;

[0070] like Figure 10 As shown, the aforementioned oil inlet component includes:

[0071] A miniature oil pump 450 is installed inside the housing structure 400. The oil outlet end of the miniature oil pump 450 is equipped with a pipe 460. The other end of the pipe 460 is inserted from the inlet 440b and extends into the storage chamber 440a.

[0072] As an optimized implementation example, such as Figure 11 As shown, a filter element 442 is installed inside the storage chamber 440a. After the micro oil pump 450 draws the liquid into the storage chamber 440a, it is filtered by the filter element 442 and then thrown out from the outlet 440c.

[0073] The filter element 442 mentioned above has the same specifications as the filter element inside the oil filter and can filter metal debris.

[0074] As an optimized embodiment, the outer wall of the housing 440 is connected to the rod portion 470, the liquid outlet 440c extends into the rod portion 470 and penetrates to the outer end of the rod portion 470, and the scraper 471 is connected to the outer wall of the rod portion 470.

[0075] It should be noted that the aforementioned scraping component 471 can also be made of materials such as sponge;

[0076] After the scraper 471 cleans the tooth gaps of the meshing parts, since the scraper 471 itself can rotate, when the scraper 471 rotates to below the level of the gear oil inside the housing structure 400, the dirt on the surface of the scraper 471 is washed away by the action of the gear oil, keeping the scraper 471 clean and tidy.

[0077] To achieve a better splashing effect, a lever 480 can be installed on the first bevel gear 411 or the second bevel gear 421. The lever 480 can have a receiving groove on both sides to hold gear oil. Then, under the action of centrifugal force, it is thrown to the surroundings, so that the gear oil fills the entire interior of the receiving structure 400.

[0078] like Figure 12 As shown, to facilitate maintenance and replacement of the filter element 442, the housing structure 400 and the drive shaft 200 can be divided into two parts. The drive shaft 200 is further divided into a first shaft 420 and a second shaft 430. The specific connection method can be as follows:

[0079] The first shaft 420 and the second shaft 430 are respectively provided with a slot 422 and a plug 431 at their adjacent ends, which can be plugged into each other. A flange 432 is installed on the plug 431, and the flange 432 is threadedly connected to the plug 431. The flange 432 is fixedly installed to the first shaft 420 by bolts 433.

[0080] It should be noted that, in addition to the unidirectional bending form shown in the figure, the scraper 471 in the above-listed embodiments can also be bidirectionally bent, thereby cleaning the two inner corners of a single tooth gap and improving the cleaning ability.

Claims

1. An axle assembly structure, comprising: Bridge pipe (100); as well as The receiving structure (400) is located in the middle of the bridge tube (100). as well as Drive shafts (200) and transmission shafts (300) are installed inside the bridge tube (100) in a cross-shaped arrangement and form a meshing transmission relationship within the receiving structure (400). Its features are: The interior of the receiving structure (400) has a scraper (471) for scraping and cleaning the meshing parts on the drive shaft (200) or transmission shaft (300); The scraping component (471) rotates within the receiving structure (400) along the rotation trajectory of the drive shaft (200) or transmission shaft (300) under the drive of the rotary drive device and scrapes the tooth gaps on the meshing structure on the drive shaft (200) or transmission shaft (300). The scraping member (471) is connected to the transmission shaft (300) or the drive shaft (200) and rotates synchronously with the transmission shaft (300) or the drive shaft (200). When rotating, the scraping member (471) scrapes the tooth gaps on the meshing structure on the drive shaft (200) or the transmission shaft (300). The housing structure (400) is internally provided with a spray assembly, the spray assembly comprising: A liquid storage structure is fixed to the outer wall of the drive shaft (200); A storage cavity (440a) is formed inside the liquid storage structure; The inlet (440b) communicates with the interior of the storage cavity (440a) and the receiving structure (400); When the liquid outlet (440c) and the liquid storage structure rotate with the drive shaft (200) and the transmission shaft (300), the liquid inside the storage cavity (440a) is thrown towards the meshing part on the transmission shaft (300) or the drive shaft (200) under the action of inertia.

2. The axle assembly structure according to claim 1, characterized in that: The scraping element (471) scrapes along the direction of outward extension of the tooth gap.

3. The axle assembly structure according to claim 2, characterized in that: One end of the drive shaft (300) rotates with one end of the housing structure (400) via a bearing, and the drive shaft (200) is internally rotatably connected to the bridge tube (100).

4. The axle assembly structure according to any one of claims 1 to 3, characterized in that: The scraping element (471) is provided in several parts and is evenly distributed in a circular pattern on the drive shaft (200) or transmission shaft (300).

5. The axle assembly structure according to claim 4, characterized in that: The liquid storage structure includes a housing (440) and a rear cover (441), which are interlocked to form the storage cavity (440a) and the liquid inlet (440b).

6. The axle assembly structure according to claim 5, characterized in that: The inlet (440b) is a closed annular shape. A micro oil pump (450) is installed inside the receiving structure (400). The micro oil pump (450) has a pipe (460) installed at its oil outlet end. The other end of the pipe (460) is inserted from the inlet (440b) and extends into the storage chamber (440a).

7. The axle assembly structure according to claim 6, characterized in that: The storage chamber (440a) is equipped with a filter element (442). After the micro oil pump (450) draws the liquid into the storage chamber (440a), it is filtered by the filter element (442) and then ejected from the outlet (440c).

8. The axle assembly structure according to claim 7, characterized in that: The outer wall of the housing (440) is connected to a rod (470), the liquid outlet (440c) extends into the rod (470) and through to the outer end of the rod (470), and the scraper (471) is connected to the outer wall of the rod (470).

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