Planetary lead screw type vehicle box sliding-out system

Abstract

The utility model relates to a planetary screw type vehicle box sliding-out system which comprises a sliding-out box, a planetary screw type movement assembly, a driving device, a supporting frame and a bearing box, the sliding-out box is arranged at an opening of a vehicle body, the planetary screw type movement assembly is fixed to the supporting frame, and the driving device is fixed to the upper portion of the interior of the bearing box. The planetary lead screw type movement assembly, the driving device and part of the supporting frames are symmetrically integrated in the bearing box, long-strip-shaped openings are formed in the bottom of the bearing box and symmetrically arranged on the two sides of the lower portion of the sliding-out box, and the sliding-out box synchronously slides back and forth at the lower ends of the supporting frames through the long-strip-shaped openings. According to the sliding-out box, the vehicle box can slide out and retract, the use space of the vehicle is increased, a chassis on the lower portion of the vehicle body does not need to be detached, the whole sliding-out box can be fixed to an opening of the vehicle body only by fixing the bottom plate of the supporting frame to the vehicle body, and the sliding-out box is neat, attractive and convenient to install and detach.

Description

Technical Field

[0001] This invention relates to the field of vehicle interior space expansion technology, and in particular to a planetary screw-type vehicle body sliding system. Background Technology

[0002] Existing vehicles and motorhomes can be equipped with slide-out cabins to increase interior space. When in motion, the slide-out cabin's outer wall is flush with the exterior of the vehicle or trailer. When the vehicle stops, the slide-out cabin slides out from the vehicle's opening, thus increasing interior space.

[0003] Patent CN202111541306.4 discloses a motorhome extension mechanism and a motorhome. The sliding mechanism is located under and on both sides of the vehicle body. It is not integrated, occupies a lot of space, is inconvenient to install, and is unstable in operation.

[0004] Patent US202117408020A discloses a sliding device that is set on both sides of the sliding box. Due to the complexity of the mechanism used, the telescopic drive device is too tall, occupies a lot of space, is inconvenient to maintain, and increases the cost of use.

[0005] Regarding the aforementioned technologies, the inventors believe that the sliding mechanism of the vehicle body sliding system is relatively large, complex to install, and costly. Therefore, they believe that the sliding mechanism of the vehicle body sliding system has the problem of occupying a large amount of space. Summary of the Invention

[0006] To address the issue of large space requirements in vehicle sliding mechanisms, this invention provides a planetary screw-type vehicle sliding system. This system is integrated into the lower sides of the sliding box, suspending and supporting the weight of the sliding box. Using it in a vehicle sliding system saves space and improves space utilization. Furthermore, since the entire sliding mechanism inside the supporting box is integrated and connected to the support frame base plate, there is no need to disassemble the lower chassis of the vehicle. Installation and disassembly are convenient; simply fixing the support frame base plate to the vehicle body allows the entire sliding box to be positioned at the opening of the vehicle body.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A planetary screw-type vehicle body sliding system includes a sliding body, a planetary screw-type motion component, a drive device, a support frame, and a carrier box. The sliding body is located at an opening in the vehicle body. The planetary screw-type motion component is fixed above the support frame. The drive device is fixed at the top inside the carrier box. The planetary screw-type motion component, the drive device, and part of the support frame are integrated inside the carrier box. The carrier box is symmetrically arranged on both sides below the sliding body. The bottom of the carrier box has an elongated opening through which the carrier box slides back and forth at the lower end of the support frame.

[0009] By adopting the above technical solution, the planetary screw motion component, drive device, and part of the support frame are integrated in the carrier box, which can isolate the planetary screw motion component and drive device from external influences, facilitate installation and disassembly, improve appearance, and increase the interior space of the vehicle.

[0010] Preferably, the planetary screw motion assembly includes a screw, a first planetary roller nut, a second planetary roller nut, a retaining ring, a first nut flange, a second nut flange, a large gear, a first flange, a second flange, a first bearing, and a second bearing. The screw meshes with the first planetary roller nut and the second planetary roller nut. One end of the screw is fixed to the first flange via the first bearing, and the other end of the screw is fixed to the second flange via the second bearing. The large gear is located at the end of the screw near the second bearing. A retaining ring is fixed to one end of the screw. The screw helically moves within the first and second planetary roller nuts. The first planetary roller nut has a first nut connection hole, the second planetary roller nut has a second nut connection hole, the first flange has a first flange connection hole, and the second flange has a second flange connection hole.

[0011] By adopting the above technical solution, the large gear drives the lead screw to move spirally within the first planetary roller nut and the second planetary roller nut. The lead screw rotates along the central axis of the lead screw. By rotating the lead screw in both forward and reverse directions, the lead screw slides out and retracts. The first flange and the second flange bear the weight of the slide-out housing and then transfer the weight to the lead screw, which in turn transfers it to the first planetary roller nut and the second planetary roller nut.

[0012] Preferably, the lead screw maintains a cantilever configuration when driving the sliding housing to slide out and retract.

[0013] By adopting the above technical solution, the ball screw cantilever can increase the sliding length of the sliding box, thereby increasing the usable space inside the vehicle, without the need for additional support.

[0014] Preferably, the driving device includes a drive base, a motor, a reducer, a pinion, a first snap ring, a second snap ring, and a timing belt. The output shaft of the motor is connected to the reducer, which is mounted on the drive base. The pinion is connected to the output shaft of the reducer. The first and second snap rings are fixed to the output shaft of the reducer, holding the pinion in place. The motor drives the pinion to rotate through the reducer. The timing belt is used to synchronously drive the pinion and the large gear.

[0015] By adopting the above technical solution, the small gear drives the large gear on the lead screw to rotate through the synchronous belt, thereby driving the planetary lead screw motion component.

[0016] Preferably, the drive base has a reducer fixing hole, the reducer has a reducer connection hole corresponding to the reducer fixing hole, the top of the drive base has a fixing hole, the top of the carrier box has a drive base fixing hole, and the drive base fixing hole and the fixing hole are correspondingly arranged.

[0017] By adopting the above technical solution, the reducer is fixed on the drive seat, and the drive seat is fixed on the top of the bearing box.

[0018] Preferably, the support frame includes a nut fixing seat, a vertical plate and a base plate. The nut fixing seat has a first nut fixing hole on one side corresponding to the first nut connection hole and a second nut fixing hole on the other side corresponding to the second nut connection hole. The base plate has a support frame connection hole.

[0019] By adopting the above technical solution, the first planetary roller nut and the second planetary roller nut can transfer the weight to the nut fixing seat, which then transfers it to the support frame, and finally to the vehicle body. The long strip opening at the bottom of the load-bearing box slides out from the vertical plate of the support frame, and the bottom plate supports the entire sliding box. There is no need to disassemble the vehicle chassis; the bottom plate of the support frame can be directly fixed to the vehicle body. The entire sliding box is then suspended at the opening of the vehicle, and the support frame transfers the weight of the sliding box to the vehicle body.

[0020] Preferably, one end of the bearing box is provided with a load-bearing maintenance plate, and the other end is provided with a load-bearing plate.

[0021] By adopting the above technical solution, the load-bearing inspection plate and the load-bearing plate transfer the weight of the sliding box to the lead screw through the first flange and the second flange. The lead screw then transfers the weight to the first planetary roller nut and the second planetary roller nut. The first planetary roller nut and the second planetary roller nut then transfer the weight to the nut fixing seat. The nut fixing seat then transfers the weight to the support frame. Finally, the support frame transfers the weight to the car body.

[0022] Preferably, the load-bearing maintenance plate is detachable. The load-bearing maintenance plate is installed and removed through the load-bearing maintenance plate connection holes and the load-bearing maintenance plate fixing holes.

[0023] By adopting the above technical solution, installation is convenient, and when a fault occurs inside the load-bearing box, it can be repaired by disassembling the load-bearing inspection plate, thus reducing maintenance costs.

[0024] Preferably, the load-bearing maintenance plate is provided with a second flange fixing hole corresponding to the second flange connection hole, and the load-bearing plate is provided with a first flange fixing hole corresponding to the first flange connection hole.

[0025] By adopting the above technical solution, the first flange can be fixed to the load-bearing plate through the first flange fixing hole, and the second flange can be fixed to the load-bearing maintenance plate through the second flange fixing hole. The load-bearing maintenance plate and the load-bearing plate transfer the weight of the sliding box to the first flange and the second flange.

[0026] Preferably, during vehicle operation, the sliding box is flush with the outer surface of the vehicle body.

[0027] By adopting the above technical solutions, the impact of the external environment on the interior of the carriage can be reduced, and the appearance is also aesthetically pleasing.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The planetary ball screw motion component, drive device, and some support frames are symmetrically integrated and arranged in the load-bearing boxes on both sides of the sliding box, which can achieve synchronous back-and-forth sliding and increase the usable space inside the vehicle.

[0030] 2. Integrating the planetary ball screw motion components, drive unit, and part of the support frame into the carrier box can isolate external influences and reduce the internal space occupied.

[0031] 3. Since the entire sliding mechanism inside the carrier box is integrated and connected to the support frame base plate, it is not necessary to disassemble the lower chassis of the vehicle body. Installation and disassembly are convenient. Simply fix the base plate of the support frame to the vehicle body, and the entire sliding box can be set at the opening of the vehicle body.

[0032] 4. The load-bearing inspection plate on the load-bearing box is removable. When a fault occurs inside the load-bearing box, it can be repaired by removing the load-bearing inspection plate.

[0033] 5. The sliding-out box body is flush with the outer surface of the vehicle, which reduces the impact of the external environment on the interior of the box body and also improves the appearance. Attached Figure Description

[0034] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a perspective view of the sliding box completely sliding out from the opening on the vehicle body in a specific embodiment of the present invention.

[0036] Figure 2 This is a perspective view of the sliding box being fully retracted from the opening on the vehicle body in a specific embodiment of the present invention.

[0037] Figure 3 This is a front sectional view of the sliding box in a specific embodiment of the present invention.

[0038] Figure 4 This is a schematic diagram of the sliding mechanism in a specific embodiment of the present invention.

[0039] Figure 5 This is a schematic diagram of an explosion of a planetary lead screw motion component in a specific embodiment of the present invention.

[0040] Figure 6 This is a schematic diagram of the explosion of the driving device in a specific embodiment of the present invention.

[0041] Figure 7 This is a schematic diagram of the support frame in a specific embodiment of the present invention.

[0042] Figure 8 This is a schematic diagram of the structure of the carrier box in a specific embodiment of the present invention.

[0043] Figure 9 This is an explosion diagram of the sliding mechanism in a specific embodiment of the present invention.

[0044] Figure 10 This is a front sectional view of the interior of the carrier box in a specific embodiment of the present invention.

[0045] Figure 11 The diagram shows the sliding box sliding out, where 11a is a perspective view of the sliding box fully sliding out in a specific embodiment of the present invention, 11b is a side view of the sliding box fully sliding out, and 11c is a cross-sectional view of the sliding mechanism when the sliding box is fully sliding out.

[0046] Figure 12 The diagram shows the retraction of the sliding box, where 12a is a perspective view of the fully retracted sliding box in a specific embodiment of the present invention, 12b is a side view of the fully retracted sliding box, and 12c is a cross-sectional view of the sliding mechanism when the sliding box is fully retracted.

[0047] Explanation of reference numerals in the attached drawings: 1. Sliding box; 2. Load-bearing box; 3. Support frame; 303. Vertical plate; 302. Base plate; 4. Synchronous belt; 5. Lead screw; 6a. First planetary roller nut; 6b. Second planetary roller nut; 7. Snap ring; 8. Nut fixing seat; 8a. First nut flange; 8b. Second nut flange; 9. Motor; 10. Reducer; 11. Drive seat; 12. Large gear; 13. Small gear; 14. Load-bearing inspection plate; 15. Load-bearing plate; 16. Long opening; 17a. First flange; 17b. Second flange; 18a. First bearing; 18b. Second bearing; 19. ... 20. First flange fixing hole; 21. Drive seat fixing hole; 22. Fixing hole; 23a. First nut connection hole; 23b. Second nut connection hole; 24a. First nut fixing hole; 24b. Second nut fixing hole; 25. Vehicle body; 26a. First flange connection hole; 26b. Second flange connection hole; 27. Reducer fixing hole; 28. Reducer connection hole; 29a. First snap ring; 29b. Second snap ring; 30. Planetary screw motion assembly; 31. Load-bearing maintenance plate fixing hole; 32. Load-bearing maintenance plate connection hole; 33. Support frame connection hole; 34. Drive unit. Detailed Implementation

[0048] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0049] Reference Figure 1-2 As can be seen, when the vehicle is stationary, the sliding box 1 slides out completely from the opening on the vehicle body 25, increasing the usable space inside the vehicle body 25. After the sliding box 1 is retracted, it is flush with the appearance of the vehicle body 25 and does not affect the overall aesthetic effect.

[0050] Reference Figure 3 , Figure 4 A planetary screw-type vehicle body sliding system includes a sliding body 1, a planetary screw-type motion component 30, a drive unit 34, a support frame 3, and a load-bearing box 2. The sliding body 1 is made of aluminum alloy or other lightweight materials with low structural rigidity. Corresponding load-bearing boxes 2 are located below opposite side walls of the sliding body 1. The two load-bearing boxes 2 have identical internal structures, are correspondingly positioned, and move synchronously, bearing the weight of the sliding body 1. The planetary screw-type motion component 30, the drive unit 34, and part of the support frame 3 are integrated inside the load-bearing box 2, saving space and facilitating quick installation and disassembly.

[0051] Reference Figure 5 As shown, the planetary lead screw motion assembly 30 includes a lead screw 5, a first planetary roller nut 6a, a second planetary roller nut 6b, a retaining ring 7, a first nut flange 8a, a second nut flange 8b, a first bearing 18a, a second bearing 18b, a first flange 17a, a second flange 17b, and a large gear 12. The lead screw 5 meshes with the first planetary roller nut 6a and the second planetary roller nut 6b. One end of the lead screw 5 is fixed to the first flange 17a via the first bearing 18a, and the other end of the lead screw 5 is fixed to the second flange 17b via the second bearing 18b. The lead screw 5 helically moves within the first planetary roller nut 6a and the second planetary roller nut 6b. When the lead screw 5 drives the sliding housing 1 to slide out and retract, it always maintains a cantilever configuration. The large gear 12 is located at the end of the lead screw 5 near the second bearing 18b, and a retaining ring 7 is fixed to one end of the lead screw 5 to hold the large gear 12 in place. The first planetary roller nut 6a is provided with a first nut connection hole 23a, the second planetary roller nut 6b is provided with a second nut connection hole 23b, the first flange 17a is provided with a first flange connection hole 26a, and the second flange 17b is provided with a second flange connection hole 26b.

[0052] Reference Figure 6 As shown: The drive device 34 includes a drive base 11, a motor 9, a reducer 10, a pinion 13, a first retaining ring 29a, a second retaining ring 29b, and a synchronous belt 4. The output shaft of the motor 9 is connected to the reducer 10. The drive base 11 has a reducer fixing hole 27. The reducer 10 has a reducer connection hole 28 corresponding to the reducer fixing hole 27. The output shaft of the reducer 10 is connected to the pinion 13. The first retaining ring 29a and the second retaining ring 29b are fixed on the output shaft of the reducer 10, holding the pinion 13 in place. The motor 9 drives the pinion 13 to rotate through the reducer 10. The synchronous belt 4 is used to synchronously drive the pinion 13 and the large gear 12. The top of the drive base 11 has a fixing hole 22, and the top of the carrier box 2 has a drive base fixing hole 21, with the drive base fixing hole 21 corresponding to the fixing hole 22.

[0053] Reference Figure 7 As shown: The support frame 3 includes a nut fixing seat 8, a vertical plate 303 and a base plate 302. The nut fixing seat 8 has a first nut fixing hole 24a corresponding to the first nut connecting hole 23a on one side and a second nut fixing hole 24b corresponding to the second nut connecting hole 23b on the other side, which is used to fix and support the first planetary roller nut 6a and the second planetary roller nut 6b. The base plate 302 has a support frame connecting hole 33, which is used to fix the support frame to the vehicle body 25.

[0054] Reference Figure 8As shown: The front and rear sides of the bearing box 2 are provided with detachable load-bearing maintenance plates 14 and load-bearing plates 15. The load-bearing maintenance plate 14 has a second flange fixing hole 19 corresponding to the second flange connection hole 26b. The load-bearing plate 15 has a first flange fixing hole 20 corresponding to the first flange connection hole 26a. The load-bearing maintenance plate 14 is installed and removed through the load-bearing maintenance plate connection hole 32 and the load-bearing maintenance plate fixing hole 31, facilitating maintenance of the planetary screw motion assembly 30. The bearing box 2 bears the weight of the component sliding out of the box body, fixing the first flange 17a and the second flange 17b to the load-bearing maintenance plate 14 and the load-bearing plate 15, thus transferring the weight to the first flange 17a and the second flange 17b. A long opening 16 is provided at the bottom of the bearing box.

[0055] Reference Figure 9 The image shown is an exploded view of the sliding mechanism.

[0056] Reference Figure 10 The image shown is a front sectional view of the interior of the bearing box 2. It can be seen that the small gear 13 and the large gear 12 are connected by synchronous transmission through the synchronous belt 4, and the connection relationship between the bearing box 2 and the support frame 3 can also be seen.

[0057] Reference Figure 11 The diagram shows the planetary screw-type vehicle body sliding system after sliding out. The motor 9 of the drive unit 34 drives the pinion 13 to rotate through the reducer 10. The pinion 13 synchronously drives the large gear 12 to rotate. The large gear 12 drives the screw 5 to move in a spiral motion. The screw 5 rotates along the central axis of the screw 5. The screw 5 moves through the first planetary roller nut 6a and the second planetary roller nut 6b, driving the carrier box 2 to move. As shown by arrow A, the first planetary roller nut 6a and the second planetary roller nut 6b remain stationary. The carrier box 2 drives the sliding body 1 to slide out from the opening of the vehicle body 25. The sliding body 1 slides out completely to the stop position of the preset length, and the sliding process ends. The support frame 3 remains stationary. After the sliding box 1 slides out, the load-bearing inspection plate 14 and the load-bearing plate 15 transfer the weight of the sliding box 1 to the lead screw 5 through the first flange 17a and the second flange 17b. The lead screw 5 then transfers the weight to the first planetary roller nut 6a and the second planetary roller nut 6b. The first planetary roller nut 6a and the second planetary roller nut 6b then transfer the weight to the nut fixing seat 8. The nut fixing seat 8 then transfers the weight to the support frame 3. Finally, the support frame 3 transfers the weight to the car body 25.

[0058] The load cell 2 bears the weight of the planetary screw motion assembly 30, the drive unit 34, and the sliding housing 1, which is then transferred to the vehicle body 25 via the support frame 3. The load-bearing inspection plate 14 is removable; when a fault occurs inside the load cell 2, it can be removed for repair without fully opening the load cell 2, facilitating future use. The planetary screw motion assembly 30, the drive unit 34, and part of the support frame 3 (excluding the base plate 302) are integrated inside the load cell 2, saving space, facilitating quick installation and disassembly, and maintaining an aesthetically pleasing appearance.

[0059] Reference Figure 12 The diagram shows the retraction of the planetary screw-type vehicle body sliding system. The motor 9 of the drive unit 34 drives the pinion 13 to rotate in the opposite direction through the reducer 10. The pinion 13 synchronously drives the large gear 12 to rotate in the opposite direction. The large gear 12 drives the screw 5 to move in the opposite direction inside the first planetary roller nut 6a and the second planetary roller nut 6b, as shown by arrow B, which drives the carrier box 2 to retract. The first planetary roller nut 6a and the second planetary roller nut 6b remain stationary. The screw 5 rotates in the opposite direction along the central axis of the screw 5. The screw 5 drives the carrier box 2 to retract into the vehicle. When the outside of the sliding body 1 is aligned with the vehicle body 25, the retraction movement stops and the sliding body 1 is fully retracted.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A planetary screw-type vehicle body sliding system, comprising a sliding body (1), a planetary screw-type motion component (30), a drive device (34), a support frame (3), and a carrier box (2). The sliding body (1) is located at the opening of the vehicle body (25). The planetary screw-type motion component (30) is fixed above the support frame (3). The drive device (34) is fixed at the top inside the carrier box (2). The planetary screw-type motion component (30), the drive device (34), and part of the support frame (3) are integrated inside the carrier box (2). The carrier box (2) is symmetrically arranged on both sides below the sliding body (1). The bottom of the carrier box (2) is provided with a long strip opening (16). The carrier box (2) slides back and forth at the lower end of the support frame (3) through the long strip opening (16).

2. The planetary screw-type vehicle housing sliding system according to claim 1, characterized in that, The planetary lead screw motion assembly (30) includes a lead screw (5), a first planetary roller nut (6a), a second planetary roller nut (6b), a snap ring (7), a first nut flange (8a), a second nut flange (8b), a large gear (12), a first flange (17a), a second flange (17b), a first bearing (18a), and a second bearing (18b). The lead screw (5) meshes with the first planetary roller nut (6a) and the second planetary roller nut (6b). One end of the lead screw (5) is fixed to the first flange (17a) via the first bearing (18a), and the other end of the lead screw (5) is fixed to the second bearing (18b). The lead screw (5) is fixed on the second flange (17b). A large gear (12) is provided at one end of the lead screw (5) near the second bearing (18b). A snap ring (7) is fixed at one end of the lead screw (5). The lead screw (5) moves spirally inside the first planetary roller nut (6a) and the second planetary roller nut (6b). The first planetary roller nut (6a) is provided with a first nut connection hole (23a), and the second planetary roller nut (6b) is provided with a second nut connection hole (23b). The first flange (17a) is provided with a first flange connection hole (26a), and the second flange (17b) is provided with a second flange connection hole (26b).

3. The planetary screw-type vehicle housing sliding system according to claim 2, characterized in that, The lead screw (5) drives the sliding box (1) to slide out and retract, always maintaining the cantilever setting.

4. A planetary screw-type vehicle housing sliding system according to claim 3, characterized in that, The drive unit (34) includes a drive base (11), a motor (9), a reducer (10), a pinion (13), a first snap ring (29a), a second snap ring (29b), and a timing belt (4). The output shaft of the motor (9) is connected to the reducer (10). The reducer (10) is mounted on the drive base (11). The output shaft of the reducer (10) is connected to the pinion (13). The first snap ring (29a) and the second snap ring (29b) are fixed on the output shaft of the reducer (10) to hold the pinion (13). The motor (9) drives the pinion (13) to rotate through the reducer (10). The timing belt (4) is used to synchronously drive the pinion (13) and the large gear (12).

5. A planetary screw-type vehicle housing sliding system according to claim 4, characterized in that, The drive seat (11) has a reducer fixing hole (27), the reducer (10) has a reducer connection hole (28) corresponding to the reducer fixing hole (27), the top of the drive seat (11) has a fixing hole (22), the top of the carrier box (2) has a drive seat fixing hole (21), and the drive seat fixing hole (21) and the fixing hole (22) are correspondingly set.

6. A planetary screw-type vehicle housing sliding system according to claim 5, characterized in that, The support frame (3) includes a nut fixing seat (8), a vertical plate (303) and a base plate (302). The nut fixing seat (8) has a first nut fixing hole (24a) corresponding to the first nut connecting hole (23a) on one side and a second nut fixing hole (24b) corresponding to the second nut connecting hole (23b) on the other side. The base plate (302) has a support frame connecting hole (33).

7. A planetary screw-type vehicle housing sliding system according to claim 6, characterized in that, One end of the bearing box (2) is provided with a load-bearing maintenance plate (14), and the other end is provided with a load-bearing plate (15).

8. A planetary screw-type vehicle body sliding system according to claim 7, characterized in that, The load-bearing maintenance plate (14) is detachable.

9. A planetary screw-type vehicle housing sliding system according to claim 8, characterized in that, The load-bearing plate (15) is provided with a first flange fixing hole (20) corresponding to the first flange connection hole (26a), and the load-bearing maintenance plate (14) is provided with a second flange fixing hole (19) corresponding to the second flange connection hole (26b).

10. A planetary screw-type vehicle housing sliding system according to claim 9, characterized in that, During vehicle operation, the sliding box (1) is flush with the outer plane of the vehicle body (25).

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