Steering drive axle with automatic lubricating function

Abstract

The invention discloses a steering drive axle with an automatic lubricating function, and relates to the technical field of motor vehicle axles. The steering drive axle with the automatic lubricating function comprises a steering drive axle body, a transverse pull rod is arranged on the back of the steering drive axle body, and two corresponding steering levers are arranged on the top of the steering drive axle body. According to the steering drive axle with the automatic lubricating function, an inner heat conduction plate is driven by an inner heat conduction pipe of an annular pipe to rotate, and lubricating oil in the steering drive axle can be pumped into an outer pipe of the annular pipe through a first connecting pipe by rotation of the inner heat conduction plate; the lubricating oil is cooled by flowing air flow through the outer side heat conduction plate, the annular pipe inner heat conduction pipe, the inner side heat conduction plate and the inner heat conduction plate, then the lubricating oil is sent back to the interior of the coupler through the second connecting pipe, the effect of cooling the lubricating oil can be achieved, and the effect of protecting gears in the steering drive axle is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of motor vehicle bridges, in particular to a steering drive bridge with an automatic lubrication function. Background Art

[0002] The steering drive axle plays a key role in motor vehicles. It can effectively transmit the power of the engine to the wheels, so that the vehicle can obtain the power to drive. When the vehicle turns, the differential coordinates the speed difference of the inner and outer wheels to ensure smooth steering. In addition, the coordination of its steering knuckle and tie rod can accurately change the direction of the wheel, so that the motor vehicle can flexibly drive on the road according to the driver's intention. It has two important functions of driving and steering, which greatly improves the controllability and maneuverability of the motor vehicle. A steering drive front axle disclosed in the Chinese patent with publication number CN107444490B includes a steering knuckle, a front axle housing, a first kingpin structure, a second kingpin structure, a steering trapezoidal arm, and a cover plate. One side of the front axle housing is rotationally connected to the first side of the steering knuckle through the first kingpin structure, and the other side of the front axle housing is rotationally connected to the second side of the steering knuckle through the second kingpin structure; the first kingpin structure includes a first connecting kingpin and a metal bushing outer ring, the first connecting kingpin includes a first connecting cylindrical section and a second connecting cylindrical section coaxially arranged, the diameter of the first connecting cylindrical section is greater than the diameter of the second connecting cylindrical section; the metal bushing outer ring is sleeved on the first connecting cylindrical section and rotationally matched with the first connecting cylindrical section; the second connecting cylindrical section is interference matched with the first mounting hole of the front axle housing, and the outer wall surface of the metal bushing outer ring is interference matched with the first pin hole of the steering knuckle; When a motor vehicle is traveling at high speed, the gears inside the steering drive axle will rotate at high speed. When the gears rotate at high speed, friction will generate a large amount of heat. This heat will cause the temperature of the lubricating oil to rise sharply, and the viscosity of the lubricating oil will decrease under high temperature conditions. The lubricating oil will become thinner after heating and will not be able to adhere well to the gear surface to form an oil film of sufficient thickness, resulting in a decrease in lubrication performance, making it impossible for the lubricating oil to protect the gears inside the steering drive axle. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a steering drive axle with automatic lubrication function to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steering drive axle with automatic lubrication function, comprising a steering drive axle, a tie rod is arranged at the back of the steering drive axle, two steering levers corresponding to each other are arranged at the top of the steering drive axle, a coupling is arranged at the back of the steering drive axle at the top of the tie rod, the steering drive axle includes a main reducer, a differential and left and right half shafts, the coupling will transmit power to the left and right half shafts through the main reducer and the differential by connecting with the transmission shaft to drive the rotation of the motor vehicle wheel hub, the bottom of the steering drive axle is fixedly connected to an external cooling mechanism, and the bottom of the external cooling mechanism is fixedly connected to a filtering mechanism; External cooling mechanism includes: A first connecting pipe, wherein the first connecting pipe is fixedly connected to the bottom of the steering drive axle, and the first connecting pipe is located at the bottom of the gear meshing position inside the steering drive axle, and the lubricating oil inside the steering drive axle can flow into the first connecting pipe; An annular outer tube, the annular outer tube being fixedly connected to the bottom of the first connecting tube; The second connecting pipe is fixedly connected to the top of the outer tube of the annular tube, and the second connecting pipe is fixedly connected to the top of the coupling. The lubricating oil can flow back from the second connecting pipe to the inside of the steering drive axle, and the position of the return flow is located at the top of the gear meshing inside the coupling.

[0005] Preferably, a heat-conducting tube inside an annular tube is movably connected inside the second connecting tube, and the heat-conducting tube inside the annular tube is rotatably connected to the outer tube of the annular tube through a sealing shaft, and an inner heat-conducting plate is fixedly connected to the inner wall of the heat-conducting tube inside the annular tube. When the inner heat-conducting plate rotates, it will push the air to flow, and a driving motor is fixedly connected to the front side of the inner heat-conducting plate, and the output shaft of the driving motor is fixedly connected to the inner heat-conducting plate, and a motor fixing frame is fixedly connected to the outer wall of the driving motor, and the motor fixing frame is fixedly connected to the outer tube of the annular tube. The rotation of the heat-conducting tube inside the annular tube will cause the internal heat-conducting plate to rotate, and the rotation of the internal heat-conducting plate will draw the lubricating oil inside the steering drive axle into the inner tube of the annular tube through the first connecting tube, and then the lubricating oil is sent back to the inside of the coupling through the second connecting tube.

[0006] Preferably, the outer wall of the inner heat conducting pipe of the annular tube is located inside the first connecting tube and is fixedly connected to an internal heat conducting plate. The rotation of the internal heat conducting plate will promote the lubricating fluid. The outer wall of the outer tube of the annular tube is fixedly connected to an outer heat conducting plate. The outer heat conducting plate, the inner heat conducting pipe of the annular tube, the inner heat conducting plate and the inner heat conducting plate all have good thermal conductivity. The lubricating oil can transfer heat to the outer heat conducting plate, the inner heat conducting pipe of the annular tube, the inner heat conducting plate and the inner heat conducting plate.

[0007] Preferably, an internal short shaft is movably connected to the top of the coupling inside the second connecting tube, and a first spiral push plate is fixedly connected to the outer wall of the internal short shaft. When the lubricating oil is sent back to the steering drive axle through the outer heat conduction plate, the lubricating oil will push the first spiral push plate, and a dispersion plate is fixedly connected to the outer wall of the internal short shaft inside the coupling. The dispersion plate rotates, and when the lubricating oil is discharged from the second connecting tube into the steering drive axle, it will be dispersed to all sides by the rotating dispersion plate, allowing the dispersed lubricating oil to fall back into the steering drive axle.

[0008] Preferably, the filtering mechanism includes a debris collection box, which is fixedly connected to the bottom of the annular outer tube, and an annular filter plate is fixedly connected to the inside of the annular outer tube. The heat conducting tube in the annular tube drives the inner heat conducting plate to rotate, which pushes the lubricating oil to move toward the second connecting tube. When the lubricating oil passes through the annular filter plate inside the annular outer tube, the debris in the lubricating oil is isolated on the side of the annular filter plate close to the brush plate.

[0009] Preferably, the outer wall of the heat transfer tube in the annular tube is located on the left side of the annular filter plate and is fixedly connected to a brush plate, and the interior of the debris collection box is fixedly connected to a debris pull-out box by bolts. The debris pull-out box can be pulled out by unscrewing the bolts, so that when the lubricating oil is replaced, the worn debris can be centrally processed. The rotation of the brush plate will sweep the debris attached to one side of the annular filter plate away from the surface of the annular filter plate, and the debris will be swept into the debris collection box by centrifugal force, and the debris will fall into the debris pull-out box of the debris collection box.

[0010] Preferably, a square magnet is fixedly connected to the top of the debris pull-out box, and when the debris is close to the square magnet, it will be adsorbed on the surface by the square magnet, preventing the debris from floating to the annular filter plate and causing blockage of the annular filter plate; an obstruction plate is fixedly connected to the bottom of the brush plate inside the debris collection box, and the obstruction plate will hinder the rotation of the brush plate and affect the lubricating oil inside the debris collection box, so that the lubricating liquid inside the debris collection box tends to calm down, and the debris that enters the debris collection box can enter the bottom of the debris collection box faster under the action of gravity.

[0011] Preferably, a stirring frame is movably connected to the top of the first connecting tube inside the coupling, and the rotation of the stirring frame will stir the lubricating oil inside the steering drive axle. The outer wall of the stirring frame is located inside the first connecting tube and is fixedly connected to a second spiral push plate. When the lubricating oil enters the first connecting tube, it pushes the second spiral push plate, thereby causing the stirring frame to rotate.

[0012] The present invention provides a steering drive axle with automatic lubrication function, which has the following beneficial effects: 1. The steering drive axle with automatic lubrication function rotates with the internal heat conducting plate through the heat conducting pipe inside the annular tube. The rotation of the internal heat conducting plate draws the lubricating oil inside the steering drive axle into the inner part of the annular tube through the first connecting pipe, and allows the flowing airflow to cool the lubricating oil through the outer heat conducting plate, the heat conducting pipe inside the annular tube, the inner heat conducting plate and the internal heat conducting plate, and then the lubricating oil is sent back to the inside of the coupling through the second connecting pipe, which can cool the lubricating oil and protect the gears inside the steering drive axle.

[0013] 2. The steering drive axle with automatic lubrication function sends the lubricating oil back to the inside of the steering drive axle through the outer heat conduction plate, and is dispersed in all directions by the rotating dispersion plate, so that the cooled lubricating oil is dispersed and falls into the inside of the steering drive axle, which can play a role in cooling the inside of the steering drive axle relatively quickly, and then cools the gears by contacting with the gears, thereby avoiding the failure of the oil film of the lubricating oil and protecting the gears.

[0014] 3. The steering drive axle with automatic lubrication function isolates the debris in the lubricating oil on the side of the annular filter plate close to the brush plate when the lubricating oil passes through the annular filter plate. The rotation of the brush plate will sweep the debris attached to one side of the annular filter plate away from the surface of the annular filter plate, and sweep the debris into the debris collection box through centrifugal force, and allow the debris to be adsorbed on the surface by the square magnet, so as to remove the metal debris in the lubricating oil, prevent the debris from being mixed into the gears again to cause aggravated wear between the gears, and thus protect the gears.

[0015] 4. The steering drive axle with automatic lubrication function will rotate the stirring frame when the lubricating oil enters the first connecting pipe. The rotation of the stirring frame will stir the lubricating oil inside the steering drive axle, so that the debris mixed in the lubricating oil inside the steering drive axle will be stirred and float, and the debris can be better brought into the outer tube of the annular tube by the flowing lubricating oil, thereby enhancing the filtering efficiency of the lubricating oil and indirectly improving the protection effect of the gears.

[0016] 5. The steering drive axle with automatic lubrication function can prevent the debris from adhering to the surface of the inner heat conduction plate and the heat conduction pipe in the annular pipe to hinder the heat transfer after filtering the debris in the lubricating oil through the annular filter plate, so that the lubricating oil can better contact the cooling surface, the heat exchange efficiency is improved, and the cooling effect of the lubricating oil on the gears can be further enhanced to better protect the gears.

[0017] 6. The steering drive axle with automatic lubrication function stirs the lubricating oil inside the steering drive axle through the stirring frame, which can promote the mutual contact between the lubricating oil flowing back from the second connecting pipe after being cooled and the high-temperature lubricating oil, so that the cooled lubricating oil quickly absorbs the temperature inside the steering drive axle, and cools down the lubricating oil inside the steering drive axle more quickly, which plays a role in strengthening cooling and can better protect the gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A; Figure 3 It is a schematic diagram of the back three-dimensional structure of the present invention; Figure 4 for Figure 3 The enlarged structural diagram of the middle B part; Figure 5 for Figure 1 Schematic diagram of the cross-section structure; Figure 6 for Figure 5 The enlarged structural diagram of the middle C part; Figure 7 for Figure 5 The enlarged structural diagram of the middle D part; Figure 8 for Figure 5 The enlarged structural diagram of the middle E part; Fig. 9 for Figure 5 The enlarged structural diagram of the middle F part; Fig.10 This is a schematic diagram of the structure of the heat conduction pipe in the annular tube of the present invention; Fig.11 It is a schematic diagram of the structure of the inner heat conducting plate of the present invention.

[0019] In the figure: 1. steering drive axle; 2. tie rod; 3. steering lever; 4. coupling; 5. external cooling mechanism; 501. first connecting pipe; 502. outer pipe of annular tube; 503. second connecting pipe; 504. outer heat conduction plate; 505. inner heat conduction pipe of annular tube; 506. inner heat conduction plate; 507. driving motor; 508. motor fixing frame; 509. inner heat conduction plate; 510. inner short shaft; 511. first spiral push plate; 512. spreading plate; 6. filtering mechanism; 601. debris collection box; 602. annular filter plate; 603. brushing plate; 604. obstruction plate; 605. debris pull-out box; 606. square magnet; 607. stirring frame; 608. second spiral push plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] Example 1: Please refer to Figure 1-11 The present invention provides a technical solution: a steering drive axle with automatic lubrication function, comprising a steering drive axle 1, a tie rod 2 is arranged on the back of the steering drive axle 1, two steering levers 3 corresponding to each other are arranged on the top of the steering drive axle 1, a coupling 4 is arranged on the back of the steering drive axle 1 at the top of the tie rod 2, the steering drive axle 1 includes a main reducer, a differential and left and right half shafts, the coupling 4 will transmit power to the left and right half shafts through the main reducer and the differential by connecting with the transmission shaft to drive the rotation of the motor vehicle wheel hub, the bottom of the steering drive axle 1 is fixedly connected to an external cooling mechanism 5, and the bottom of the external cooling mechanism 5 is fixedly connected to a filtering mechanism 6; The external cooling mechanism 5 comprises: A first connecting pipe 501, which is fixedly connected to the bottom of the steering drive axle 1, and is located at the bottom of the internal gear meshing portion of the steering drive axle 1; The annular outer tube 502 is fixedly connected to the bottom of the first connecting tube 501; The second connecting pipe 503 is fixedly connected to the top of the annular outer pipe 502 , and the second connecting pipe 503 is fixedly connected to the top of the coupling 4 .

[0023] The lubricating oil inside the steering drive axle 1 can flow into the first connecting pipe 501 , and the lubricating oil can flow back into the steering drive axle 1 from the second connecting pipe 503 , and the returning position is located at the top of the gear meshing inside the coupling 4 .

[0024] The second connecting tube 503 is movably connected inside with an annular inner heat conducting tube 505, which is rotatably connected to the annular outer tube 502 via a sealing shaft, an inner heat conducting plate 506 is fixedly connected to the inner wall of the annular inner heat conducting tube 505, and when the inner heat conducting plate 506 rotates, it pushes the air to flow, a driving motor 507 is fixedly connected to the front side of the inner heat conducting plate 506, and the output shaft of the driving motor 507 is fixedly connected to the inner heat conducting plate 506, a motor fixing bracket 508 is fixedly connected to the outer wall of the driving motor 507, and the motor fixing bracket 508 is fixedly connected to the annular outer tube 502.

[0025] When the motor vehicle is started, the transmission shaft drives the gear inside the steering drive axle 1 through the coupling 4 to work, and at the same time starts the drive motor 507, which drives the heat conduction pipe 505 in the annular pipe to rotate through the inner heat conduction plate 506.

[0026] The outer wall of the annular tube inner heat conduction pipe 505 is located inside the annular tube outer tube 502 and is fixedly connected to an internal heat conduction plate 509. The outer wall of the annular tube outer tube 502 is fixedly connected to an outer heat conduction plate 504. The outer heat conduction plate 504, the annular tube inner heat conduction pipe 505, the inner heat conduction plate 506 and the inner heat conduction plate 509 all have good thermal conductivity. The lubricating oil can transfer heat to the outer heat conduction plate 504, the annular tube inner heat conduction pipe 505, the inner heat conduction plate 506 and the inner heat conduction plate 509.

[0027] The rotation of the heat conducting pipe 505 in the annular tube will cause the internal heat conducting plate 509 to rotate. The rotation of the internal heat conducting plate 509 will draw the lubricating oil inside the steering drive axle 1 into the inner part of the annular tube outer tube 502 through the first connecting pipe 501, and then send the lubricating oil back to the inner part of the coupling 4 through the second connecting pipe 503. When the motor vehicle is running at high speed, the lubricating oil will be heated by the mutual friction between the gears. When the lubricating oil enters the inner part of the annular tube outer tube 502, it will transfer the heat to the outer heat conducting plate 504, the heat conducting pipe 505 in the annular tube, the inner heat conducting plate 506 and the inner heat conducting plate 509. The inner heat conducting plate 506 also It can increase the contact area with the lubricating oil and enhance the efficiency of heat exchange between the heat conducting pipe 505 in the annular tube, the internal heat conducting plate 509 and the lubricating oil. When the motor drives the inner heat conducting plate 506 to rotate, it will promote the air flow, and use the flowing air to absorb the heat of the internal heat conducting plate 509 and the inner heat conducting plate 506 to cool the lubricating oil. At the same time, when the motor vehicle is driving, the air will quickly flow through the outer wall of the outer heat conducting plate 504 to cool the outer heat conducting plate 504, thereby cooling the lubricating oil, and sending the cooled lubricating oil back to the inside of the steering drive axle 1 through the second connecting pipe 503.

[0028] An internal short shaft 510 is movably connected to the top of the coupling 4 inside the second connecting tube 503 , a first spiral push plate 511 is fixedly connected to the outer wall of the internal short shaft 510 , and a spreading plate 512 is fixedly connected to the outer wall of the internal short shaft 510 inside the coupling 4 .

[0029] When the lubricating oil is sent back to the interior of the steering drive axle 1 through the outer heat conduction plate 504, the lubricating oil will push the first spiral push plate 511 to rotate the internal short shaft 510 with the dispersion plate 512, so that when the lubricating oil is discharged from the second connecting pipe 503 into the interior of the steering drive axle 1, it will be dispersed to the surroundings by the rotating dispersion plate 512, and the lubricating oil that has been cooled and dispersed falls into the interior of the steering drive axle 1, which can play a role in cooling the interior of the steering drive axle 1 more quickly, and then play a role in cooling the gears by contacting with the gears. When the vehicle is traveling at a low speed, it is difficult for the gears to absorb the lubricating oil from the bottom to the top, resulting in the inability to fully exert the lubricating effect of the lubricating oil. When the lubricating oil is sent back to the interior of the steering drive axle 1 through the second connecting pipe 503, the lubricating oil will flow down from the top of the gear, so that the lubricating oil can also play a good lubricating effect at a low speed.

[0030] Example 2: Please refer to Figure 1-11 Based on the first embodiment, the present invention provides a technical solution: The filtering mechanism 6 includes a debris collection box 601, which is fixedly connected to the bottom of the annular outer tube 502. An annular filter plate 602 is fixedly connected inside the annular outer tube 502. The annular filter plate 602 can isolate the debris in the lubricating oil to one side.

[0031] The gears will wear against each other during movement, and the wear debris will be mixed into the lubricating oil. The heat pipe 505 inside the annular tube drives the inner heat conduction plate 506 to rotate, which will push the lubricating oil to move to the second connecting tube 503. When the lubricating oil passes through the annular filter plate 602 inside the outer tube 502 of the annular tube, the debris in the lubricating oil will be isolated on the side of the annular filter plate 602 close to the brush plate 603.

[0032] After the debris is filtered and removed by the annular filter plate 602, the debris can be prevented from adhering to the surface of the inner heat conduction plate 506 and the heat conduction pipe 505 in the annular tube to hinder the heat transfer, so that the lubricating oil can better contact the cooling surface and the heat exchange efficiency is improved.

[0033] The outer wall of the heat transfer pipe 505 in the annular tube is located on the left side of the annular filter plate 602 and is fixedly connected to a brush plate 603. The interior of the debris collection box 601 is fixedly connected to a debris pull-out box 605 by bolts. The debris pull-out box 605 can be pulled out by unscrewing the bolts, so that the worn debris can be centrally processed when the lubricating oil is replaced.

[0034] When the heat conduction tube 505 in the annular tube is driven to rotate by the driving motor 507 through the inner heat conduction plate 506, the brush plate 603 will rotate. The rotation of the brush plate 603 will sweep the debris attached to one side of the annular filter plate 602 away from the surface of the annular filter plate 602, and the debris will be swept into the debris collection box 601 through centrifugal force, and the debris will fall into the debris pull-out box 605 of the debris collection box 601.

[0035] A square magnet 606 is fixedly connected to the top of the debris pull-out box 605. When the debris is close to the square magnet 606, it will be adsorbed on the surface by the square magnet 606 to prevent the debris from floating again. An obstruction plate 604 is fixedly connected to the bottom of the brush plate 603 inside the debris collection box 601.

[0036] The obstruction plate 604 will hinder the rotation of the brush plate 603 which will affect the lubricating oil inside the debris collection box 601, allowing the lubricating fluid inside the debris collection box 601 to calm down, allowing the debris entering the debris collection box 601 to enter the bottom of the debris collection box 601 faster under the action of gravity; when the debris is close to the square magnet 606, it will be adsorbed on the surface by the square magnet 606, preventing the debris from floating to the annular filter plate 602 and causing blockage of the annular filter plate 602.

[0037] A stirring frame 607 is movably connected to the top of the first connecting tube 501 inside the coupling 4. When the lubricating oil enters the first connecting tube 501, it pushes the second spiral push plate 608, thereby rotating the stirring frame 607. The rotation of the stirring frame 607 stirs the lubricating oil inside the steering drive axle 1. The outer wall of the stirring frame 607 is located inside the first connecting tube 501 and is fixedly connected to the second spiral push plate 608.

[0038] When the lubricating oil enters the first connecting pipe 501, it will push the second spiral push plate 608, thereby causing the stirring frame 607 to rotate. The rotation of the stirring frame 607 will stir the lubricating oil inside the steering drive axle 1, so that the debris mixed in the lubricating oil inside the steering drive axle 1 is stirred and floated, so that these debris can be better brought into the annular outer tube 502 by the flowing lubricating oil, thereby enhancing the filtering efficiency of the lubricating oil. At the same time, when the stirring frame 607 stirs the lubricating oil inside the steering drive axle 1, it can promote the mutual contact between the lubricating oil flowing back from the second connecting pipe 503 after being cooled and the high-temperature lubricating oil, so that the cooled lubricating oil quickly absorbs the temperature inside the steering drive axle 1, and the lubricating oil inside the steering drive axle 1 is cooled more quickly.

[0039] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steering drive axle with automatic lubrication function, comprising a steering drive axle (1), characterized in that: The steering drive axle (1) is provided with a tie rod (2) on the back, the steering drive axle (1) is provided with two steering levers (3) corresponding to each other on the top, the steering drive axle (1) is provided with a coupling (4) on the back located on the top of the tie rod (2), the steering drive axle (1) is fixedly connected with an external cooling mechanism (5) on the bottom, and the external cooling mechanism (5) is fixedly connected with a filtering mechanism (6) on the bottom; The external cooling mechanism (5) comprises: A first connecting tube (501), the first connecting tube (501) being fixedly connected to the bottom of the steering drive axle (1), and the first connecting tube (501) being located at the bottom of a meshing position of internal gears of the steering drive axle (1); An annular outer tube (502), the annular outer tube (502) being fixedly connected to the bottom of the first connecting tube (501); A second connecting pipe (503), the second connecting pipe (503) being fixedly connected to the top of the annular outer pipe (502), and the second connecting pipe (503) being fixedly connected to the top of the coupling (4); The second connecting tube (503) is movably connected to an annular inner heat conducting tube (505), the annular inner heat conducting tube (505) is rotatably connected to the annular outer tube (502) via a sealing shaft, the inner wall of the annular inner heat conducting tube (505) is fixedly connected to an inner heat conducting plate (506), the front of the inner heat conducting plate (506) is fixedly connected to a driving motor (507), and the output shaft of the driving motor (507) is fixedly connected to the inner heat conducting plate (506), the outer wall of the driving motor (507) is fixedly connected to a motor fixing frame (508), and the motor fixing frame (508) is fixedly connected to the annular outer tube (502); The outer wall of the annular inner heat conduction pipe (505) is located inside the first connecting pipe (501) and is fixedly connected to an inner heat conduction plate (509), and the outer wall of the annular outer pipe (502) is fixedly connected to an outer heat conduction plate (504).

2. The steering drive axle with automatic lubrication function according to claim 1, characterized in that: An internal short shaft (510) is movably connected to the top of the coupling (4) inside the second connecting tube (503), a first spiral push plate (511) is fixedly connected to the outer wall of the internal short shaft (510), and a dispersion plate (512) is fixedly connected to the outer wall of the internal short shaft (510) inside the coupling (4).

3. The steering drive axle with automatic lubrication function according to claim 1, characterized in that: The filtering mechanism (6) comprises a debris collection box (601), the debris collection box (601) being fixedly connected to the bottom of the annular outer tube (502), and an annular filter plate (602) being fixedly connected inside the annular outer tube (502).

4. The steering drive axle with automatic lubrication function according to claim 3, characterized in that: The outer wall of the annular inner heat conduction pipe (505) is fixedly connected to a brush plate (603) on the left side of the annular filter plate (602), and the interior of the debris collection box (601) is fixedly connected to a debris pull-out box (605) via bolts.

5. The steering drive axle with automatic lubrication function according to claim 4, characterized in that: A square magnet (606) is fixedly connected to the top of the debris pull-out box (605), and an obstruction plate (604) is fixedly connected to the bottom of the brush plate (603) inside the debris collection box (601).

6. The steering drive axle with automatic lubrication function according to claim 1, characterized in that: The coupling (4) is located inside the top of the first connecting tube (501) and is movably connected to a stirring frame (607), and the outer wall of the stirring frame (607) is located inside the first connecting tube (501) and is fixedly connected to a second spiral push plate (608).

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