Light and simple crawler chassis double-electric-drive rear axle

Abstract

The invention belongs to the technical field of vehicle equipment, particularly relates to a light and simple crawler chassis double-electric-drive rear axle, and aims to solve the problem that an existing crawler chassis double-electric-drive rear axle lacks measures for cooling a direct current motor. The same drive axle connecting piece is arranged on the opposite sides of the two axle pipes, power half shafts are arranged in the two axle pipes correspondingly, and track drive discs are arranged at the ends, away from the drive axle connecting piece, of the two power half shafts correspondingly. According to the light and simple crawler chassis double-electric-drive rear axle, the direct-current motor running at high power can be subjected to targeted rapid cooling, heat generated by the direct-current motor is rapidly replaced through airflow flowing at high speed, and therefore heat accumulation of the direct-current motor is reduced, normal running of the direct-current motor is guaranteed, and the service life of the direct-current motor is prolonged. And the situation that the running power of the direct current motor is lost and even the service life is shortened due to high heat is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle equipment, and in particular to a light track chassis with dual electric drive rear axles. Background Art

[0002] The rear axle refers to the bridge behind the vehicle. If the vehicle is driven by the front axle, then the rear axle is just a follower axle and only serves to carry the load. Generally, there is a transfer case in front of the rear axle. The large bulge in the center of the rear axle is only present when the rear axle is a driving axle, because it has to be equipped with a reduction gear and a differential mechanism, so there must be a large bulge. If the rear axle is a follower axle, there is generally no bulge. According to the different functions of the axle, the axle can be divided into a driving axle, a steering axle, a supporting axle, and a steering driving axle.

[0003] As the dual electric drive rear axle driving the tracked chassis, the dual motors on the rear axle often need to maintain high-power operation for a long time. During this process, the DC motor will generate a lot of heat. The existing dual electric drive rear axle of the tracked chassis lacks measures to cool the DC motor, resulting in a rapid drop in the motor's operating power when the motor's operating temperature is too high, and affecting the motor's service life. Summary of the invention

[0004] The invention discloses a light and simple crawler chassis with dual electric drive rear axles, aiming to solve the technical problem in the background technology that the existing crawler chassis with dual electric drive rear axles lack measures for cooling the DC motor.

[0005] The present invention proposes a light track chassis dual electric drive rear axle, comprising two symmetrical bridge tubes, the same drive axle connector being provided on opposite sides of the two bridge tubes, and power half-shafts being provided in the two bridge tubes, track drive discs being provided at the ends of the two power half-shafts away from the drive axle connector, and reducers being provided on the bridge tubes, and DC motors being provided on the two reducers, air cooling modules being provided on the outside of the DC motors, and heat equalizing modules being provided on the outside of the DC motors.

[0006] By providing a bridge pipe, a drive axle connector, a reducer, a track drive disc, a DC motor, a power half-axle, an air cooling module and a heat equalization module, the device can use the air cooling module to achieve targeted and rapid cooling of the DC motor running at high power, and use high-speed airflow to quickly replace the heat generated by the DC motor, thereby reducing the heat accumulation of the DC motor, ensuring the normal operation of the DC motor, and avoiding the loss of operating power or even a reduction in the service life of the DC motor due to high heat.

[0007] In a preferred embodiment, the air-cooling module includes an outer sleeve, the outsides of the two DC motors are slidably connected to the outer sleeves, the outsides of the outer sleeves are fixedly connected to two symmetrical connecting blocks, the outsides of the connecting blocks are fixedly connected to latches, the outsides of the two DC motors are fixedly connected to two symmetrical fixing parts, the fixing parts are provided with circular openings, the circular openings are fixedly connected to locking seats, the locking seats are provided with circular holes, the inner walls of the circular holes are slidably connected to the outsides of the latches on the same side, and the locking seats are provided with four circumferentially equidistantly distributed grooves on the side away from the connecting blocks; a plurality of the grooves are slidably connected to clamping rods, a plurality of latches are provided with annular grooves on the outsides, and the outsides of the four clamping rods on the same locking seat are connected to the same side. The inner wall of the annular groove is clamped, and the outside of the latch is slidably connected with a rotating frame, and the rotating frame is movably connected to the side opposite to the locking seat on the same side; the side of the multiple clamping rods away from the locking seat is fixedly connected to the short shaft, and three curved grooves equidistantly distributed on the circumference are opened on the rotating frame, and the inner walls of the three curved grooves on the same side are slidably connected to the outside of the three short shafts, and the inner walls of the multiple rotating frames are fixedly connected with coil springs, and the ends of the coil springs away from the rotating frame are fixedly connected to the outside of the locking seat on the same side; the outsides of the two outer sleeves are opened with air inlets, and the inner walls of the air inlets are fixedly connected with air cooling pipes, and the inner walls of the air cooling pipes are fixedly connected with filters, and the inner walls of the air cooling pipes are fixedly connected with fixed disks, and exhaust fans are arranged on the fixed disks. Air outlets are provided on the two outer sleeves, and the inner walls of the two air outlets are fixedly connected with guide pipes; the upper sides of the air-cooling pipes are fixedly connected with hangers, and the upper sides of the hangers are fixedly connected to the outside of the bridge pipe on the same side, and the inner wall of the air-cooling pipe on the side away from the bridge pipe is movably connected with a guide plate, and the side of the guide plate close to the bridge pipe is fixedly connected with a plurality of equally distributed diversion guide rails, and the outsides of the two guide plates are provided with a containing frame, and the bottom of the containing frame is movably connected to the inner wall of the air-cooling pipe on the same side away from the bridge pipe; the inner walls of the two containing frames are provided with fine holes, and the fine holes are movably connected with the same bidirectional screw rod, and the containing frames are provided with slots, and the slots are fixedly connected with drive motors, and the output ends of the drive motors are connected to the bidirectional screw rods on the same side. One end of the rod is connected by a coupling, and two symmetrical positioning blocks are provided on the outside of the two bidirectional screw rods, and the outsides of the positioning blocks are fixedly connected to the inner wall of the accommodating frame on the same side; the upper sides of the plurality of positioning blocks are movably connected with a movable rod one, and the end of the movable rod one away from the positioning block is movably connected with a movable rod two, and the end of the movable rod two away from the movable rod one is movably connected with a connecting platform, and the end of the connecting platform away from the movable rod two is movably connected with a convex seat, and the two convex seats located on the same side are fixedly connected to the side opposite to the guide plate, and two symmetrical moving seats are provided on the outside of the two bidirectional screw rods, and the upper sides of the moving seats are movably connected with an adjusting rod, and the end of the adjusting rod on the same side away from the moving seat is movably connected to the outside of the movable rod one on the same side.

[0008] By providing an air-cooling module, the air-cooling module can accelerate the cold air with a certain speed introduced into the air-cooling pipe by using an exhaust fan and a guide plate. After passing through the slit formed by the guide plate and the inner wall of the air-cooling pipe, the Laval effect is used to accelerate the airflow again. The generated high-speed airflow quickly takes away the heat generated by the DC motor, thereby improving the heat dissipation efficiency of the device; the device uses a curved groove and a coil spring to enable the device to quickly lock and disassemble the pin, so that the device can choose whether to install the air-cooling module on the DC motor according to the use of the DC motor, and improves the installation and disassembly efficiency of the installer when installing the air-cooling module.

[0009] In a preferred embodiment, the heat equalizing module includes a heat conducting strip, and the outsides of the two DC motors are fixedly connected with a plurality of heat conducting strips equidistantly distributed around the circumference, and the outsides of the heat conducting strips on the same DC motor are slidably connected with a plurality of heat equalizing rings equidistantly distributed, and the inner walls of the heat equalizing rings are in contact with the outside of the DC motor; two symmetrical openings are provided on the plurality of heat equalizing rings, and the same bidirectional screw is slidably connected in the openings on the same side, the bidirectional screw is fixedly connected to the side opposite to the outside of the DC motor, and two symmetrical knobs are arranged on the outside of the bidirectional screw, and the outside of the bidirectional screw is surrounded by two symmetrical springs, one end of the spring is in contact with the knob on the same side, and the other end is in contact with the outside of the heat equalizing ring.

[0010] By providing a heat equalizing module, the heat equalizing module can fully absorb and diffuse the heat emitted by the DC motor by using a heat equalizing ring and a heat conductive strip, thereby increasing the temperature exchange area with the cold air in the environment, thereby reducing the temperature of the DC motor. By using a knob and a spring that can move relative to each other, the position of the heat equalizing ring on the DC motor can be adjusted, so that the heat equalizing ring can cover the part with the highest temperature on the DC motor and focus on heat dissipation, thereby ensuring the uniformity of heat dissipation of the device and improving the operating safety of the DC motor.

[0011] From the above, it can be seen that the light track chassis dual electric drive rear axle provided by the present invention has the effect of realizing targeted rapid cooling of the high-power DC motor, and using high-speed airflow to quickly replace the heat generated by the DC motor, thereby reducing the heat accumulation of the DC motor, ensuring the normal operation of the DC motor, and avoiding the loss of operating power or even a reduction in the service life of the DC motor due to high heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a light track chassis with dual electric drive rear axles proposed by the present invention; Figure 2 This is a schematic cross-sectional structure diagram of a light track chassis with dual electric drive rear axles proposed by the present invention; Figure 3 This is a schematic diagram of the structure of an air cooling module for a light track chassis with dual electric drive rear axles proposed by the present invention; Figure 4 This is a schematic diagram of the guide plate structure of a light track chassis dual electric drive rear axle proposed by the present invention; Figure 5 This is a schematic diagram of a housing frame structure of a light track chassis with dual electric drive rear axles proposed by the present invention; Figure 6 This is a schematic diagram of the locking seat structure of a light track chassis dual electric drive rear axle proposed by the present invention; Figure 7 This is a schematic diagram of the heat-saturation module structure of a light track chassis dual electric drive rear axle proposed by the present invention; Figure 8 A light track chassis with dual electric drive rear axles proposed by the present invention Figure 7 Schematic diagram of the A structure.

[0013] In the figure: 1, bridge pipe; 2, drive bridge connector; 3, reducer; 4, crawler drive plate; 5, DC motor; 6, power half shaft; 7, air cooling module; 701, outer sleeve; 702, air inlet; 703, air cooling pipe; 704, hanger; 705, fixed plate; 706, exhaust fan; 707, filter; 708, air outlet; 709, guide pipe; 710, fixing part; 711, guide plate; 712, diversion guide rail; 713, containing frame; 714, two-way screw rod; 715, drive motor; 7 16. Positioning block; 717. Movable rod one; 718. Moving seat; 719. Adjusting rod; 720. Movable rod two; 721. Boss; 722. Connecting platform; 723. Locking seat; 724. Latch; 725. Connecting block; 726. Notch; 727. Connecting rod; 728. Annular groove; 729. Short shaft; 730. Rotating frame; 731. Curved groove; 732. Coil spring; 8. Heat spreader module; 801. Heat conduction strip; 802. Heat spreader ring; 803. Bidirectional screw; 804. Knob; 805. Spring. DETAILED DESCRIPTION

[0014] 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.

[0015] The light and simple tracked chassis dual electric drive rear axle disclosed in the present invention is mainly used in scenarios where there is a lack of measures to cool down the DC motor on the existing tracked chassis dual electric drive rear axle.

[0016] Reference Figure 1-8A light track chassis dual electric drive rear axle comprises two symmetrical bridge tubes 1, a same drive bridge connector 2 is arranged on opposite sides of the two bridge tubes 1, and a power half-shaft 6 is arranged in each of the two bridge tubes 1, and a track drive disc 4 is arranged at one end of the two power half-shafts 6 away from the drive bridge connector 2, and a reducer 3 is arranged on each of the bridge tubes 1, a DC motor 5 is arranged on each of the two reducers 3, an air cooling module 7 is arranged outside the DC motor 5, and a heat equalizing module 8 is arranged outside the DC motor 5.

[0017] Specifically, after the vehicle-mounted battery transmits electricity to the DC motor 5, the DC motor 5 transmits power to the reducer 3. After deceleration and adjustment by the reducer 3, the power half-shaft 6 in the bridge tube 1 is driven to rotate, and the rotating power half-shaft 6 drives the track drive plate 4 connected to the power half-shaft 6, so that the track drive plate 4 drives the track to rotate. During the operation of the DC motor 5, the heat equalization module 8 is used to evenly diffuse the heat generated by the operation of the DC motor 5. When the DC motor 5 is running at high power, the outside air is introduced at high speed through the air cooling module 7 to cool the DC motor 5. The device can use the air cooling module 7 to achieve targeted and rapid cooling of the DC motor 5 running at high power, and use high-speed airflow to quickly replace the heat generated by the DC motor 5, thereby reducing the heat accumulation of the DC motor 5, ensuring the normal operation of the DC motor 5, and avoiding the situation where the DC motor 5 loses operating power or even reduces its service life due to high heat.

[0018] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6In a preferred embodiment, the air cooling module 7 includes an outer sleeve 701, the outer parts of the two DC motors 5 are slidably connected to the outer sleeve 701, the outer parts of the outer sleeve 701 are connected to two symmetrical connecting blocks 725 by bolts, the outer parts of the connecting blocks 725 are connected to latches 724 by bolts, the outer parts of the two DC motors 5 are connected to two symmetrical fixing members 710 by bolts, the fixing members 710 are provided with round openings, the round openings are connected to locking seats 723 by bolts, the locking seats 723 are provided with round holes, the inner walls of the round holes are slidably connected to the outer parts of the latches 724 on the same side, and the locking seats 723 are away from the connecting blocks 72 5 is provided with four circumferentially equidistant cutting grooves 726; a plurality of cutting grooves 726 are slidably connected with a clamping rod 727, a plurality of latches 724 are provided with annular grooves 728 on the outside, the four clamping rods 727 on the same locking seat 723 are all clamped with the inner wall of the annular groove 728 on the same side, and the outside of the latches 724 is slidably connected with a rotating frame 730, and the rotating frame 730 is rotatably connected to the side of the locking seat 723 on the same side through a bearing; a short shaft 729 is bolted to the side away from the locking seat 723, and the rotating frame 730 is provided with three circumferentially equidistant curved grooves 731. The inner walls of the three curved grooves 731 on the same side are slidably connected to the outsides of the three short shafts 729, and the inner walls of the multiple rotating frames 730 are connected to the coil springs 732 by bolts, and the ends of the coil springs 732 away from the rotating frames 730 are connected to the outsides of the locking seats 723 on the same side by bolts; the outsides of the two outer sleeves 701 are each provided with an air inlet 702, the inner walls of the air inlet 702 are each connected to the air cooling pipe 703 by bolts, the inner walls of the air cooling pipe 703 are each connected to the filter screen 707 by bolts, and the inner walls of the air cooling pipe 703 are each connected to the fixing plate 705 by bolts, and the fixing plate 705 is provided with an exhaust fan 706, and the two outer sleeves 701 are provided with air inlets 702. Air outlets 708 are provided, and the inner walls of the two air outlets 708 are connected with guide pipes 709 by bolts; the upper sides of the air cooling pipes 703 are connected with hangers 704 by bolts, and the upper sides of the hangers 704 are connected with the outside of the bridge pipe 1 on the same side by bolts, and the inner walls of the air cooling pipes 703 on the side away from the bridge pipe 1 are rotatably connected with guide plates 711 by bearings, and the side of the guide plates 711 close to the bridge pipe 1 is connected with multiple equally spaced diversion guide rails 712 by bolts, and the outsides of the two guide plates 711 are provided with accommodating frames 713, and the bottoms of the accommodating frames 713 are rotatably connected with the inner walls of the air cooling pipes 703 on the same side away from the bridge pipe 1 by bearings;The inner walls of the two accommodating frames 713 are each provided with a fine hole, and the fine hole is rotatably connected to the same bidirectional screw rod 714 through a bearing. The accommodating frames 713 are each provided with a slot, and the slot is connected to a driving motor 715 through a bolt. The output end of the driving motor 715 is connected to one end of the bidirectional screw rod 714 on the same side through a coupling, and the outside of the two bidirectional screw rods 714 is provided with two symmetrical positioning blocks 716, and the outside of the positioning blocks 716 is connected to the inner wall of the accommodating frame 713 on the same side through bolts; the upper sides of the multiple positioning blocks 716 are rotatably connected to a movable rod 717 through a bearing, and the end of the movable rod 717 away from the positioning block 716 is connected through The movable rod 2 720 is rotatably connected to the bearing, and the end of the movable rod 2 720 away from the movable rod 1 717 is rotatably connected to the connecting platform 722 through the bearing, and the end of the connecting platform 722 away from the movable rod 2 720 is rotatably connected to the convex seat 721 through the bearing, and the two convex seats 721 on the same side are connected to the side opposite to the guide plate 711 through bolts, and the outsides of the two bidirectional screw rods 714 are provided with two symmetrical moving seats 718, and the upper sides of the moving seats 718 are rotatably connected to the adjusting rod 719 through the bearing, and the end of the adjusting rod 719 on the same side away from the moving seat 718 is rotatably connected to the outside of the movable rod 1 717 on the same side through the bearing. ;

[0019] Specifically, the pin 724 on the connecting block 725 connected to the outer sleeve 701 is aligned with the locking seat 723 on the fixing piece 710 and inserted, and the rotating frame 730 is rotated to overcome the torsion of the coil spring 732, so that the curved groove 731 on the rotating frame 730 pushes the clamping rod 727 connected to the short shaft 729 to move outward, so that the pin 724 is completely inserted into the locking seat 723, and the rotating frame 730 is released. Under the torsion of the coil spring 732, the clamping rod 727 is reset and clamped with the annular groove 728, so that the pin 724 is fixed in the locking seat 723, so that the outer sleeve 701 is fixed to the outside of the DC motor 5, and the air cooling pipe 703 is fixed to the outside of the bridge pipe 1 using the hanger 704. During the driving of the vehicle, the exhaust fan 706 is started, and the exhaust fan 706 draws in the cold air entering from the air cooling pipe 703 and filtered by the filter 707 and forms a high-speed airflow to the outside. The liquid is transported in the sleeve 701, and the driving motor 715 is started. The driving motor 715 drives the bidirectional screw rod 714 to rotate, so that the movable seat 718 on the bidirectional screw rod 714 moves on the bidirectional screw rod 714, so that the adjusting rod 719 connected to the bidirectional screw rod 714 pushes the movable rod 1 717 to increase the angle with the accommodating frame 713, so that the movable rod 2 720 connected to the movable rod 1 717 rotates, so that the movable rod 2 720 can push the connecting platform 722 connected to the convex seat 721, thereby pushing the guide plate 711 to rotate. In the process of the guide plate 711 rotating and tightening the air outlet of the air-cooling pipe 703, the Laval nozzle effect is used to guide the air flow guided by the diversion guide rail 712 and entering the outer sleeve 701. It will be accelerated again, thereby taking away the heat on the DC motor 5 at a very fast speed and flowing along the surface of the DC motor 5, and finally spraying out from the guide pipe 709.

[0020] In specific application scenarios, the air cooling module 7 is mainly suitable for the air cooling link in the air cooling process, that is, the air cooling module 7 uses the exhaust fan 706 and the guide plate 711 to enable the device to accelerate the cold air with a certain speed introduced into the air cooling pipe 703. After passing through the slit formed by the guide plate 711 and the inner wall of the air cooling pipe 703, the Laval effect is used to accelerate the airflow again. The generated high-speed airflow quickly takes away the heat generated by the DC motor 5, thereby improving the heat dissipation efficiency of the device.

[0021] It should be noted that the device utilizes the curved groove 731 and the coil spring 732 to enable the device to quickly lock and disassemble the pin 724, so that the device can choose whether to install the air-cooling module 7 on the DC motor 5 according to the usage of the DC motor 5, and improves the installation and disassembly efficiency of the installer when installing the air-cooling module 7.

[0022] Reference Figure 7 and Figure 8In a preferred embodiment, the heat-saturating module 8 includes a heat-conducting strip 801, and the outsides of the two DC motors 5 are connected with a plurality of heat-conducting strips 801 equidistantly distributed around the circumference by bolts. The outsides of the heat-conducting strips 801 on the same DC motor 5 are slidably connected with a plurality of heat-saturating rings 802 equidistantly distributed, and the inner walls of the heat-saturating rings 802 are in contact with the outsides of the DC motor 5; two symmetrical openings are provided on the plurality of heat-saturating rings 802, and the same bidirectional screw 803 is slidably connected in the openings on the same side, the bidirectional screw 803 is connected with the side opposite to the outside of the DC motor 5 by bolts, and the outside of the bidirectional screw 803 is provided with two symmetrical knobs 804, and the outside of the bidirectional screw 803 is surrounded by two symmetrical springs 805, one end of the spring 805 is in contact with the knob 804 on the same side, and the other end is in contact with the outside of the heat-saturating ring 802.

[0023] Specifically, align the opening on the heat equalizing ring 802 with the bidirectional screw 803 installed on the outside of the DC motor 5 and insert them in sequence. According to the position of the DC motor 5 that is most heated, turn the knob 804, and the knob 804 moves on the bidirectional screw 803, thereby compressing the spring 805 between the knob 804 and the heat equalizing ring 802 and pushing the superimposed heat equalizing ring 802 on the bidirectional screw 803 to move on the bidirectional screw 803, so that the heat equalizing ring 802 can completely cover the heated position on the DC motor 5, turn the two knobs 804 on the bidirectional screw 803, and move the two knobs 804 toward each other, finally compressing the spring 805 completely, and tightening the gap between the heat equalizing rings 802 between the knobs 804 completely and fixing them at the heated position on the DC motor 5.

[0024] In specific application scenarios, the heat equalizing module 8 is mainly suitable for the heat equalizing link in the heat equalizing process, that is, the heat equalizing module 8 can fully absorb and diffuse the heat emitted by the DC motor 5 by using the heat equalizing ring 802 and the heat conductive strip 801, increase the temperature exchange area with the cold air in the environment, thereby reducing the temperature of the DC motor 5, and use the knob 804 and spring 805 that can be moved relative to each other to adjust the position of the heat equalizing ring 802 on the DC motor 5, so that the heat equalizing ring 802 can cover the part with the highest temperature on the DC motor 5 and focus on heat dissipation, thereby ensuring the uniformity of heat dissipation of the device and improving the operating safety of the DC motor 5.

[0025] Working principle: After the on-board battery transmits electricity to the DC motor 5, the DC motor 5 transmits power to the reducer 3. After deceleration and adjustment by the reducer 3, the power half-shaft 6 in the bridge tube 1 is driven to rotate. The rotating power half-shaft 6 drives the track driving plate 4 connected to the power half-shaft 6, so that the track driving plate 4 drives the track to rotate. During the operation of the DC motor 5, the opening on the heat equalizing ring 802 is aligned with the bidirectional screw 803 installed on the outside of the DC motor 5 and inserted in sequence. According to the part of the DC motor 5 that is most heated, the knob 804 is turned, and the knob 804 moves on the bidirectional screw 803, thereby compressing the spring 805 between the knob 804 and the heat equalizing ring 802 and pushing the superimposed heat equalizing ring 802 on the bidirectional screw 803. The bidirectional screw 803 moves upward so that the heat-absorbing ring 802 can completely cover the heating part of the DC motor 5. The two knobs 804 on the bidirectional screw 803 are turned to move the two knobs 804 toward each other, and finally the spring 805 is completely compressed, and the gap between the heat-absorbing ring 802 between the knobs 804 is completely tightened and fixed at the heating position on the DC motor 5, so that the heat generated by the operation of the DC motor 5 can be evenly diffused. When the DC motor 5 is running at high power, the pin 724 on the connecting block 725 connected to the outer sleeve 701 is aligned with the locking seat 723 on the fixing member 710 and inserted, and the rotating frame 730 is rotated to overcome the torsion of the coil spring 732, so that the curved groove 731 on the rotating frame 730 pushes the card connected to the short shaft 729 The connecting rod 727 moves outward, so that the pin 724 is fully inserted into the locking seat 723, and the rotating frame 730 is released. Under the torsion of the coil spring 732, the clamping rod 727 is reset and clamped with the annular groove 728, so that the pin 724 is fixed in the locking seat 723, so that the outer sleeve 701 is fixed to the outside of the DC motor 5, and the air cooling pipe 703 is fixed to the outside of the bridge pipe 1 using the hanger 704. During the driving of the vehicle, the exhaust fan 706 is started, and the exhaust fan 706 draws in the cold air that enters from the air cooling pipe 703 and is filtered by the filter screen 707 and forms a high-speed airflow to be transported to the outer sleeve 701, and the driving motor 715 is started. The driving motor 715 drives the bidirectional screw rod 714 to rotate, so that the moving The movable seat 718 moves on the bidirectional screw rod 714, so that the adjustment rod 719 connected to the bidirectional screw rod 714 pushes the movable rod 1 717 to increase the angle with the accommodating frame 713, so that the movable rod 2 720 connected to the movable rod 1 717 rotates, so that the movable rod 2 720 can push the connecting platform 722 connected to the protruding seat 721, thereby pushing the guide plate 711 to rotate. In the process of the guide plate 711 rotating and tightening the air outlet of the air-cooling pipe 703, the Laval nozzle effect is used to guide the air flow guided by the diversion guide rail 712 and entering the outer sleeve 701. It will be accelerated again, thereby taking away the heat on the DC motor 5 at an extremely fast speed and flowing along the surface of the DC motor 5, and finally spraying out from the guide pipe 709 to cool the DC motor 5.

[0026] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 light track chassis dual electric drive rear axle, comprising two symmetrical axle tubes (1), characterized in that: The same drive axle connector (2) is arranged on opposite sides of the two bridge tubes (1), and a power half-shaft (6) is arranged in each of the two bridge tubes (1), and a track drive disc (4) is arranged at one end of each of the two power half-shafts (6) away from the drive axle connector (2), and a reducer (3) is arranged on each of the bridge tubes (1), and a DC motor (5) is arranged on each of the two reducers (3), and an air cooling module (7) is arranged outside each of the DC motors (5), and a heat equalization module (8) is arranged outside each of the DC motors (5).

2. The light track chassis dual electric drive rear axle according to claim 1, characterized in that: The air-cooling module (7) comprises an outer sleeve (701), the outer parts of the two DC motors (5) are slidably connected to the outer sleeves (701), the outer parts of the outer sleeves (701) are fixedly connected to two symmetrical connecting blocks (725), the outer parts of the connecting blocks (725) are fixedly connected to latches (724), the outer parts of the two DC motors (5) are fixedly connected to two symmetrical fixing members (710), the fixing members (710) are provided with a circular opening, the inner parts of the circular openings are fixedly connected to locking seats (723), the locking seats (723) are provided with a circular hole, the inner wall of the circular hole is slidably connected to the outer parts of the latches (724) on the same side, and the locking seats (723) are provided with four circumferentially equidistantly distributed grooves (726) on one side away from the connecting blocks (725).

3. The light track chassis dual electric drive rear axle according to claim 2 is characterized in that: A plurality of the cutting grooves (726) are slidably connected to a clamping rod (727), an annular groove (728) is formed on the outside of the plurality of latches (724), the outsides of the four clamping rods (727) located on the same locking seat (723) are clamped to the inner wall of the annular groove (728) on the same side, and a rotating frame (730) is slidably connected to the outside of the latches (724), and the rotating frame (730) is movably connected to the side opposite to the locking seat (723) on the same side.

4. The light track chassis dual electric drive rear axle according to claim 3 is characterized in that: The side of the plurality of clamping rods (727) away from the locking seat (723) is fixedly connected to a short shaft (729), and the rotating frame (730) is provided with three circumferentially equidistantly distributed curved grooves (731), the inner walls of the three curved grooves (731) located on the same side are slidably connected to the outside of the three short shafts (729), and the inner walls of the plurality of rotating frames (730) are fixedly connected to a coil spring (732), and the end of the coil spring (732) away from the rotating frame (730) is fixedly connected to the outside of the locking seat (723) on the same side.

5. The light track chassis dual electric drive rear axle according to claim 2, characterized in that: The outsides of the two outer sleeves (701) are each provided with an air inlet (702), the inner walls of the air inlet (702) are each fixedly connected to an air cooling pipe (703), the inner walls of the air cooling pipe (703) are each fixedly connected to a filter screen (707), and the inner walls of the air cooling pipe (703) are each fixedly connected to a fixed disk (705), an exhaust fan (706) is provided on the fixed disk (705), the two outer sleeves (701) are each provided with an air outlet (708), and the inner walls of the two air outlets (708) are each fixedly connected to a flow guide pipe (709).

6. The light track chassis dual electric drive rear axle according to claim 5, characterized in that: The upper sides of the air cooling tubes (703) are fixedly connected to hangers (704), the upper sides of the hangers (704) are fixedly connected to the outside of the bridge tube (1) on the same side, and the inner wall of the air cooling tube (703) on the side away from the bridge tube (1) is movably connected to a guide plate (711), and the side of the guide plate (711) close to the bridge tube (1) is fixedly connected to a plurality of equally spaced flow diversion guide rails (712), and the outsides of the two guide plates (711) are provided with accommodating frames (713), and the bottoms of the accommodating frames (713) are movably connected to the inner wall of the air cooling tube (703) on the same side away from the bridge tube (1).

7. The light track chassis dual electric drive rear axle according to claim 6, characterized in that: The inner walls of the two containing frames (713) are each provided with a fine hole, and a same bidirectional screw rod (714) is movably connected in the fine hole; a slot is each provided on the containing frame (713), and a driving motor (715) is fixedly connected in the slot; the output end of the driving motor (715) is connected to one end of the bidirectional screw rod (714) on the same side via a coupling; and two symmetrical positioning blocks (716) are provided on the outside of the two bidirectional screw rods (714), and the outside of the positioning blocks (716) is fixedly connected to the inner wall of the containing frame (713) on the same side.

8. The light track chassis dual electric drive rear axle according to claim 7, characterized in that: The upper sides of the plurality of positioning blocks (716) are movably connected to movable rod one (717), the ends of movable rod one (717) away from the positioning block (716) are movably connected to movable rod two (720), the ends of movable rod two (720) away from movable rod one (717) are movably connected to connecting platforms (722), the ends of connecting platforms (722) away from movable rod two (720) are movably connected to convex seats (721), the two convex seats (721) located on the same side are fixedly connected to the side opposite to the guide plate (711), and the outsides of the two bidirectional screw rods (714) are provided with two symmetrical movable seats (718), the upper sides of the movable seats (718) are movably connected to adjusting rods (719), and the ends of the adjusting rods (719) located on the same side away from the movable seats (718) are movably connected to the outside of movable rod one (717) on the same side.

9. The light track chassis dual electric drive rear axle according to claim 1, characterized in that: The heat-scaling module (8) comprises a heat-conducting strip (801), the exteriors of the two DC motors (5) are fixedly connected to a plurality of heat-conducting strips (801) distributed at equal intervals around the circumference, the exteriors of the heat-conducting strips (801) located on the same DC motor (5) are slidably connected to a plurality of heat-scaling rings (802) distributed at equal intervals, and the inner walls of the heat-scaling rings (802) are in contact with the exteriors of the DC motors (5).

10. The light track chassis dual electric drive rear axle according to claim 9, characterized in that: Two symmetrical openings are provided on the plurality of heat equalizing rings (802), and a same bidirectional screw (803) is slidably connected in the openings on the same side, the bidirectional screw (803) is fixedly connected to the side opposite to the outside of the DC motor (5), and two symmetrical knobs (804) are provided on the outside of the bidirectional screw (803), and two symmetrical springs (805) surround the outside of the bidirectional screw (803), one end of the spring (805) is in contact with the knob (804) on the same side, and the other end is in contact with the outside of the heat equalizing ring (802).

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