X-EPS with compact spatial structure arrangement

Abstract

The invention discloses an X-EPS with compact spatial structure arrangement, and particularly relates to the technical field of automobile steering, the X-EPS comprises an electric power steering gear, an automatic lubricating oil adding structure is arranged at the top of the electric power steering gear, and a fixing structure is arranged at the bottom of the electric power steering gear. The steering gear can automatically add lubricating oil in the working process, the problem that parts are abraded due to lack of lubrication is effectively solved, it is ensured that friction force among the parts is always in a reasonable range, the service life of the steering gear is remarkably prolonged, the performance stability of the steering gear is remarkably improved, and the maintenance cost and workload are greatly reduced. And the lubricating oil does not need to be frequently and manually added, errors and untimely situations possibly caused by manual operation are reduced, it is guaranteed that the steering gear can continuously, stably and normally work, and a powerful guarantee is provided for safe driving of a vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile steering, and more particularly to an X-EPS with a compact space structure. Background Art

[0002] To enhance the driving experience of commercial vehicles, current commercial vehicle companies are retrofitting and upgrading traditional fuel vehicles, replacing the traditional hydraulic power steering (HPS) with an electric power steering (X-EPS) to improve driving feel through the electronic control system. However, the input space of the HPS in traditional fuel vehicles is relatively small, and the X-EPS, due to the presence of the power steering motor, controller, and worm gear components, causes interference between the X-EPS and the cab floor, which affects the design layout and promotion of the X-EPS. The number of steel balls in the internal ball screw pair affects the load-bearing capacity of the assembly. The inability to reduce the number of turns means that the nut stroke cannot be reduced, further compressing the space. A compact X-EPS structure integrates the angle sensor and the angle steering gear in the X-EPS, which can convert the traditional vertical X-EPS steering gear into a horizontal X-EPS, solving the problem of insufficient cab floor space.

[0003] As disclosed in publication number CN115771560A, the present invention discloses a method and structure for integrated arrangement of a sensor and a controller in an X-EPS, which relates to the field of automobile steering technology. A structure for integrated arrangement of a sensor and a controller in an X-EPS comprises a second input shaft and a second output shaft, wherein the second input shaft is sleeved with the second output shaft, one end of the second input shaft is connected to a straight spline at one end of a second torsion bar, and a straight spline at the other end of the second torsion bar is connected to the second output shaft, a bearing and a second sleeve are connected to the second output shaft, the second output shaft is sleeved with the second lower shell through the threads of the bearing and the second sleeve, and the second lower shell is fixedly connected to the second reducer shell through a stop and a bolt; an X-EPS product designed and manufactured by combining the controller and the sensor makes the arrangement of the improved X-EPS on the whole vehicle more flexible.

[0004] The steering gear in the current existing technology does not have an automatic lubricating oil filling structure, which causes the components of the steering gear to wear out easily due to lack of lubrication after long-term use, reducing the service life and performance stability of the steering gear. During maintenance, manual lubricating oil needs to be added, which not only increases maintenance costs and workload, but may also affect the normal operation of the steering gear due to untimely addition. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an X-EPS with a compact spatial structure. The technical problem to be solved by the present invention is that the steering gear in the current prior art does not have an automatic lubricating oil filling structure, which causes the components of the steering gear to wear out easily due to lack of lubrication after long-term use, thereby reducing the service life and performance stability of the steering gear. During maintenance, manual lubricating oil needs to be added, which not only increases maintenance costs and workload, but may also affect the normal operation of the steering gear due to untimely addition.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: an X-EPS with a compact spatial structure, comprising an electric power steering gear, wherein the top of the electric power steering gear is provided with an automatic lubricating oil adding structure, and the bottom of the electric power steering gear is provided with a fixing structure; The electric power steering device includes a housing, wherein rectangular through holes extending into the interior are provided on both left and right sides of the top of the outer wall of the housing, and bearings are fixedly connected to the left and right ends of the inner wall of the housing, screws are fixedly connected to the inner walls of the two bearings, nuts are threadedly connected to the outer walls of the screws, and the raceways of the screws and nuts are filled with steel balls to form a ball screw pair; The automatic lubricating oil adding structure includes a mounting assembly 1, an extraction assembly is provided on the top of the mounting assembly 1, and an oil drain assembly is provided inside the mounting assembly 1; The fixed structure includes an electric control mechanism, a fixing ring is fixedly connected to the lower side of the outer wall of the electric control mechanism, and a mounting seat is provided at the bottom of the electric control mechanism.

[0007] As a further solution of the present invention: the outer wall of the nut is processed with a rack, the outer wall of the nut is provided with a plurality of steel balls, the outer wall of the nut is provided with a conduit, the steel balls on the outer wall of the nut circulate in reverse through the conduit, the inner wall of the shell is provided with a pressure block, the pressure block compacts the conduit, the outer wall of the nut rack is meshed and connected with a rocker shaft, the rocker shaft is processed with fan teeth, the lower side of the outer wall of the shell is fixedly connected with a connecting shell, a needle bearing is provided inside the connecting shell, the connecting shell is connected to the shell, and the inner wall of the rocker shaft is fixedly connected to the outer wall of the needle bearing.

[0008] As a further solution of the present invention: the installation component 1 includes a storage box, the top of the storage box is fixedly connected to a liquid inlet, the interior of the liquid inlet is connected to the interior of the storage box, the end of the liquid inlet away from the storage box is fixedly connected to a fixing pipe, the left and right sides of the bottom of the inner wall of the storage box are provided with guide grooves, the bottom of the inner wall of the guide groove is provided with a circular fixing hole that penetrates to the outside, the inner wall of the circular fixing hole is fixedly connected to a liquid outlet pipe, and the left and right sides of the storage box are provided with rectangular through-hole 2 that penetrates to the inside.

[0009] As a further solution of the present invention: the extraction component includes a protective shell, the bottom of the protective shell is fixedly connected to the top of the storage box, a water pump is provided inside the protective shell, the water inlet end of the water pump is fixedly connected to connecting pipe 1, the end of connecting pipe 1 away from the water pump passes through to the outside of the protective shell, the outer wall of connecting pipe 1 away from the water pump is fixedly connected to multiple fixing sleeves, the water outlet end of the protective shell is fixedly connected to connecting pipe 2, the end of connecting pipe 2 away from the water pump passes through the interior of the storage box, and the end of connecting pipe 1 away from the water pump passes through the interior of the connecting shell.

[0010] As a further solution of the present invention: the oil drain assembly includes two fixed blocks, the left and right sides of the fixed blocks are fixedly connected to sliding rods, the sides of the left and right sliding rod outer walls that are away from each other are both sleeved with springs, the sides of the left and right sliding rod outer walls that are close to each other are both movably connected with sliding sleeves, the ends of the left and right sliding rods that are away from each other are fixedly connected to support plates, the bottom of the support plate is fixedly connected to the inner wall of the storage box, and the sides of the front and rear sliding sleeves that are close to each other are fixedly connected to connecting blocks.

[0011] As a further solution of the present invention: the bottom of the connecting block is fixedly connected to a movable plate, the outer wall of the movable plate is movably connected to the inner wall of the guide slide groove, the two movable plates are fixedly connected to a fixed plate 1 on the side away from each other at the top, and a fixed plate 2 is fixedly connected above the side away from each other, the outer wall of the fixed plate 2 is movably connected to the inner wall of the rectangular through hole 2, the two fixed plates 2 are fixedly connected to a push plate on the side away from each other at the bottom, the outer wall of the push plate is movably connected to the inner wall of the rectangular through hole 1, and the lower part of the side close to each other is movably connected to the outer wall of the nut.

[0012] As a further solution of the present invention: the mounting seat includes a second mounting component, and a fixing component is arranged inside the second mounting component.

[0013] As a further solution of the present invention: the second mounting component includes a base, a mounting groove 1 is provided on the top front side of the base, mounting grooves 2 are provided on the left and right sides of the top front side of the base, and circular through holes 1 are provided on the left and right sides of the inner wall of the first mounting groove and penetrate into the interior of the second mounting groove.

[0014] As a further solution of the present invention: a mounting groove three is provided on both the left and right sides of the top of the base, a mounting groove four is provided on both the left and right sides of the rear side of the top of the base, a circular through hole two is provided on the rear side of the inner wall of the mounting groove three and penetrates into the interior of the mounting groove four, a circular through hole three is provided on the front side of the inner wall of the mounting groove three and penetrates into the interior of the mounting groove two, a placement groove is provided in the middle position of the top of the base, the inner wall of the placement groove is movably connected to the outer wall of the fixing ring, and a circular through hole four is provided on the front side of the inner wall of the mounting groove one and penetrates into the outside.

[0015] As a further solution of the present invention: the fixing assembly includes a limiting plate, the outer wall of the limiting plate is movably connected to the inner wall of the circular through hole four, the front end of the limiting plate is fixedly connected to a hexagonal block, the rear end of the limiting plate is fixedly connected to a worm, the outer wall of the worm is meshed with a worm wheel, the rear end of the worm is rotatably connected to the inner wall of the mounting groove one, the inner wall of the worm wheel is fixedly connected to a fixing rod one, the outer wall of the fixing rod one is movably connected to the inner wall of the circular through hole one, the left and right ends of the fixing rod one are fixedly connected to a conical tooth one, the outer wall of the conical tooth one is meshed with a conical tooth two, the inner wall of the conical tooth two The wall is fixedly connected with a fixing rod 2, the rear end of the fixing rod 2 is rotatably connected to the inner wall of the mounting groove 4, the front end of the fixing rod 2 is rotatably connected to the inner wall of the mounting groove 2, and the fixing rod 2 is fixedly connected to the outer wall of the mounting groove 3 and the mounting groove 4 corresponding to two gears, and a pressure plate is provided above the gear, and a plurality of teeth are fixedly connected to the annular array of the outer wall of the pressure plate close to one end of the gear, and the outer wall of the teeth is meshed with the outer wall of the gear, and the bottom of the pressure plate away from the gear end is movably connected to the top of the fixing ring, and the front and rear sides of the pressure plate are hinged with support sleeves, and the bottom of the support sleeve is fixedly connected to the top of the base.

[0016] The beneficial effects of the present invention are: The present invention is provided with an automatic lubricating oil adding structure, which enables the steering gear to automatically add lubricating oil during operation, effectively avoiding the wear problem of components due to lack of lubrication, ensuring that the friction between the components is always within a reasonable range, thereby significantly improving the service life and performance stability of the steering gear, and greatly reducing maintenance costs and workload. There is no need for frequent manual addition of lubricating oil, which reduces the mistakes and untimely situations that may be caused by manual operation, ensures that the steering gear can operate normally and stably, and provides a strong guarantee for the safe driving of the vehicle. At the same time, it is compatible with the overall design of the X-EPS with a compact space structure layout, while solving the space problem, it further improves the comprehensive performance and practicality of the steering gear.

[0017] The present invention provides a fixed structure so that the electric power steering can be firmly installed in the desired position, avoiding displacement or loosening due to factors such as vibration and bumps during vehicle driving, ensuring the stability of the installation of the electronic control mechanism, and effectively improving the reliability and safety of the entire steering system. At the same time, it also facilitates the installation and removal of the steering gear, provides convenience for subsequent maintenance and inspection work, improves work efficiency, and further enhances the feasibility and practicality of the X-EPS with a compact space structure in actual application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the cross-section of the structure of the electric power steering device of the present invention; Figure 3 This is a schematic structural diagram of the automatic lubricating oil adding structure of the present invention; Figure 4 This is a schematic cross-sectional view of the structure of the installation component 1 of the present invention; Figure 5 It is a structural diagram of the extraction component of the present invention; Figure 6 It is a structural schematic diagram of the oil drain assembly of the present invention; Figure 7 It is a structural schematic diagram of the fixing structure of the present invention; Figure 8 It is a structural schematic diagram of the mounting base of the present invention; Figure 9 This is a structural diagram of the second installation component of the present invention; Figure 10 It is a structural schematic diagram of the fixing component of the present invention.

[0019] In the figure: 1. Electric power steering; 2. Automatic lubricating oil adding structure; 3. Fixed structure; 11. Housing; 12. Rectangular through hole 1; 13. Bearing; 14. Screw; 15. Nut; 16. Conduit; 17. Pressure block; 18. Connecting shell; 19. Needle bearing; 10. Rocker shaft; 21. Mounting assembly 1; 22. Extraction assembly; 23. Oil drain assembly; 211. Storage box; 212. Liquid inlet; 213. Fixed pipe; 214. Guide chute; 215. Liquid outlet pipe; 216. Rectangular through hole 2; 221. Protective shell; 222. Water pump; 223. Connecting pipe 1; 224. Connecting pipe 2; 225. Fixed sleeve; 231. Fixed block; 232. Sliding rod; 233. Spring; 234. Sliding sleeve; 235. Support plate; 236. Connecting block; 237. Movable plate; 238 , fixing plate 1; 239, fixing plate 2; 230, push plate; 31, electric control mechanism; 32, fixing ring; 33, mounting seat; 331, mounting assembly 2; 332, fixing assembly; 3311, base; 3312, mounting slot 1; 3313, mounting slot 2; 3314, circular through hole 1; 3315, mounting slot 3; 3316, mounting slot 4; 3317, circular through hole 2; 331 8. Circular through hole three; 3319. Placement slot; 3310. Circular through hole four; 3321. Limit plate; 3322. Hexagonal block; 3323. Worm; 3324. Worm wheel; 3325. Fixed rod one; 3326. Conical tooth one; 3327. Conical tooth two; 3328. Fixed rod two; 3329. Gear; 3320. Pressure plate; 33201. Tooth; 33202. Support sleeve. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1-2 As shown, the present invention provides an X-EPS with a compact space structure, including an electric power steering gear 1, an automatic lubricating oil adding structure 2 is provided on the top of the electric power steering gear 1, and a fixing structure 3 is provided on the bottom of the electric power steering gear 1. The electric power steering gear 1 includes a housing 11, and rectangular through holes 12 are provided on both sides of the top of the outer wall of the housing 11, and the left and right ends of the inner wall of the housing 11 are fixedly connected to bearings 13. The inner walls of the two bearings 13 are fixedly connected to screws 14, and the outer walls of the screws 14 are threadedly connected to nuts 15. The raceways of the screws 14 and the nuts 15 are filled with steel balls. Ball screw pair, the outer wall of the nut 15 is processed with a rack, the outer wall of the nut 15 is provided with multiple steel balls, the outer wall of the nut 15 is provided with a conduit 16, the steel balls on the outer wall of the nut 15 circulate in the opposite direction through the conduit 16, the inner wall of the shell 11 is provided with a pressure block 17, the pressure block 17 compacts the conduit 16, the outer wall of the nut 15 rack is meshed and connected with the rocker shaft 10, the rocker shaft 10 is processed with fan teeth, the lower side of the outer wall of the shell 11 is fixedly connected with a connecting shell 18, the interior of the connecting shell 18 is provided with a needle bearing 19, the connecting shell 18 is connected with the shell 11, and the inner wall of the rocker shaft 10 is fixedly connected to the outer wall of the needle bearing 19.

[0022] like Figure 3-6As shown, the automatic lubricating oil adding structure 2 includes a mounting assembly 21, an extraction assembly 22 is provided on the top of the mounting assembly 21, an oil discharge assembly 23 is provided inside the mounting assembly 21, and the mounting assembly 21 includes a storage box 211. The top of the storage box 211 is fixedly connected with a liquid inlet 212, the interior of the liquid inlet 212 is connected to the interior of the storage box 211, and the end of the liquid inlet 212 away from the storage box 211 is fixedly connected with a fixed pipe 213. Guide grooves 214 are provided on the left and right sides of the bottom of the inner wall of the storage box 211. A circular fixing hole is provided on the bottom of the inner wall of the guide groove 214 and passes through to the outside. A liquid outlet pipe 215 is fixedly connected to the inner wall of the circular fixing hole. The second rectangular through hole 216, the extraction component 22 includes a protective shell 221, the bottom of the protective shell 221 is fixedly connected to the top of the storage box 211, and a water pump 222 is provided inside the protective shell 221. The water inlet end of the water pump 222 is fixedly connected to a connecting pipe 1 223, and the end of the connecting pipe 1 223 away from the water pump 222 passes through the outside of the protective shell 221. The outer wall of the connecting pipe 1 223 away from the water pump 222 is fixedly connected to a plurality of fixing sleeves 225, and the water outlet end of the protective shell 221 is fixedly connected to a connecting pipe 224, and the end of the connecting pipe 224 away from the water pump 222 passes through the interior of the storage box 211, and the end of the connecting pipe 1 223 away from the water pump 222 passes through the interior of the connecting shell 18. The oil discharge component 23 includes two fixing blocks 2 31. The left and right sides of the fixed block 231 are fixedly connected to the sliding rod 232. The side where the outer walls of the left and right sliding rods 232 are away from each other is covered with a spring 233. The side where the outer walls of the left and right sliding rods 232 are close to each other is movably connected to a sliding sleeve 234. The ends of the left and right sliding rods 232 away from each other are fixedly connected to a support plate 235. The bottom of the support plate 235 is fixedly connected to the inner wall of the storage box 211. The side where the front and rear sliding sleeves 234 are close to each other is fixedly connected to a connecting block 236. The bottom of the connecting block 236 is fixedly connected to a movable plate 237. The outer wall of the movable plate 237 is movably connected to the inner wall of the guide slot 214. The tops of the two movable plates 237 are fixedly connected to a fixed plate 238 on the side where they are away from each other. The two fixed plates 238 are away from each other. A second fixing plate 239 is fixedly connected to the upper portion of one side. The outer wall of the second fixing plate 239 is movably connected to the inner wall of the second rectangular through hole 216. The two sides of the bottom of the two fixing plates 239 that are away from each other are fixedly connected to push plates 230. The outer wall of the push plates 230 is movably connected to the inner wall of the first rectangular through hole 12. The lower portion of the two push plates 230 that are close to each other is movably connected to the outer wall of the nut 15. First, appropriate lubricating oil is added to the interior of the storage box 211 through the fixed tube 213. When the vehicle starts, the electronic control mechanism 31 starts working and the output torque is transmitted to the screw 14. Since the two ends of the screw 14 are supported by two bearings 13, it can only rotate. This drives the nut 15 that forms a ball screw pair with it to slide on the outer wall of the screw 14.The rack on the outer wall of the nut 15 is meshed with the sector teeth on the rocker shaft 10. The movement of the rack of the nut 15 drives the sector teeth of the rocker shaft 9 to rotate. The torque output by the rocker shaft 10 drives the tire to rotate, thereby realizing the steering operation of the vehicle. At the same time, the nut 15 moves to push the push plate 230 to move on the inner wall of the rectangular through hole 12. The movement of the push plate 230 drives the fixed plate 239 to slide on the inner wall of the rectangular through hole 216, and drives the fixed plate 1 238 to make the movable plate 237 slide in the guide groove 214. When the movable plate 237 slides to the top of the liquid outlet pipe 215 and is no longer blocked, the lubricating oil in the storage box 211 flows into the interior of the electric power steering device 1 through the liquid outlet pipe 215, realizing the automatic lubrication of the lubricating oil. Dynamic addition is achieved by moving the movable plate 237, driving the connecting block 236 to move, causing the sleeve 234 to slide on the slide rod 232 and compressing the spring 233. Then, when the nut 15 moves to the other side, the spring 233 pushes the sleeve 234 and drives the connecting block 236 to reset the movable plate 237 and block the liquid outlet pipe 215. The water pump 222 extracts lubricating oil from the connecting shell 18 through the connecting pipe 1 223 and then transports it back to the storage tank 211 through the connecting pipe 2 224, so that the lubricating oil is circulated, ensuring that the lubricating oil in the electric power steering system 1 is sufficient and can be continuously recycled, further improving the working efficiency and service life of the electric power steering system 1, and ensuring the smoothness and stability of the vehicle steering operation.

[0023] like Figure 7-10As shown, the fixed structure 3 includes an electric control mechanism 31, a fixing ring 32 is fixedly connected to the lower side of the outer wall of the electric control mechanism 31, a mounting seat 33 is provided at the bottom of the electric control mechanism 31, the mounting seat 33 includes a second mounting component 331, a fixing component 332 is provided inside the second mounting component 331, the second mounting component 331 includes a base 3311, a mounting groove 1 3312 is provided on the top front side of the base 3311, mounting grooves 2 3313 are provided on the left and right sides of the front side of the top of the base 3311, a circular through hole 1 3314 is provided on the left and right sides of the inner wall of the first mounting groove 3312, which penetrates into the interior of the second mounting groove 3313, a mounting groove 3 3315 is provided on the left and right sides of the top of the base 3311, and a mounting groove 3 3315 is provided on the left and right sides of the top rear side of the base 3311. A fourth mounting groove 3316 is provided, a second circular through hole 3317 is provided on the rear side of the inner wall of the third mounting groove 3315 and extends into the interior of the fourth mounting groove 3316, a third circular through hole 3318 is provided on the front side of the inner wall of the third mounting groove 3315 and extends into the interior of the second mounting groove 3313, a placement groove 3319 is provided in the middle position of the top of the base 3311, the inner wall of the placement groove 3319 is movably connected to the outer wall of the fixing ring 32, a fourth circular through hole 3310 is provided on the front side of the inner wall of the first mounting groove 3312 and extends to the outside, the fixing assembly 332 includes a limiting plate 3321, the outer wall of the limiting plate 3321 is movably connected to the inner wall of the fourth circular through hole 3310, the front end of the limiting plate 3321 is fixedly connected to a hexagonal block 3322, and the limiting plate 3321 is fixed to the front end of the The rear end is fixedly connected to a worm 3323, the outer wall of the worm 3323 is meshedly connected to a worm wheel 3324, the rear end of the worm 3323 is rotatably connected to the inner wall of the mounting groove 1 3312, the inner wall of the worm wheel 3324 is fixedly connected to a fixing rod 1 3325, the outer wall of the fixing rod 1 3325 is movably connected to the inner wall of the circular through hole 1 3314, the left and right ends of the fixing rod 1 3325 are fixedly connected to a conical tooth 1 3326, the outer wall of the conical tooth 1 3326 is meshedly connected to a conical tooth 2 3327, the inner wall of the conical tooth 2 3327 is fixedly connected to a fixing rod 2 3328, the rear end of the fixing rod 2 3328 is rotatably connected to the inner wall of the mounting groove 4 3316, the front end of the fixing rod 2 3328 is rotatably connected to the inner wall of the mounting groove 2 3313, and the fixing rod 1 3325 is fixedly connected to the left and right ends of the fixing rod 1 3325. The outer walls of the second fixed rod 3328 corresponding to the third and fourth mounting slots 3315 and 3316 are fixedly connected to two gears 3329. A pressure plate 3320 is provided above the gear 3329. The outer wall of the pressure plate 3320 is fixedly connected to a plurality of teeth 33201 in a ring array near one end of the gear 3329. The outer wall of the teeth 33201 is meshed with the outer wall of the gear 3329. The bottom of the pressure plate 3320 away from the end of the gear 3329 is movably connected to the top of the fixed ring 32. The front and rear sides of the pressure plate 3320 are hinged with support sleeves 33202. The bottom of the support sleeve 33202 is fixedly connected to the top of the base 3311. By inserting the electric control mechanism 31 and the fixed ring 32 into the interior of the placement slot 3319, and then twisting the hexagonal block 3322,The limiting plate 3321 rotates on the inner wall of the circular through hole 4 3310, and drives the worm 3323 to rotate. The rotation of the worm 3323 causes the worm wheel 3324 to rotate. The rotation of the worm wheel 3324 drives the fixed rod 1 3325 to rotate in the circular through hole 1 3314. The rotation of the fixed rod 1 3325 drives the conical teeth 1 3326 at both ends to rotate. The rotation of the conical teeth 1 3326 causes the meshing conical teeth 2 3327 to rotate. The rotation of the conical teeth 2 3327 drives the fixed rod 2 3328 to rotate. When the fixed rod 2 3328 rotates, the gear 3329 on it rotates accordingly. As the gear 3329 rotates, it meshes with the teeth 33201, driving the pressure plate 3320 to rotate around its hinge point with the support sleeve 33202, gradually pressing the pressure plate 3320 downward until the bottom of the pressure plate 3320, away from the gear 3329, presses tightly against the top of the fixing ring 32, thereby firmly fixing the electronic control mechanism 31 to the mounting base 33. This ensures the stability of the entire X-EPS during vehicle operation, prevents the electronic control mechanism 31 from loosening due to factors such as vibration, which could affect the normal operation of the electric power steering system 1, and further improves the reliability and safety of the vehicle's steering system.

[0024] Working principle of the present invention: First, add appropriate lubricating oil to the interior of the storage box 211 through the fixed pipe 213. When the vehicle starts, the electronic control mechanism 31 starts to work, and the output torque is transmitted to the screw 14. Since the two ends of the screw 14 are supported by two bearings 13, it can only rotate. This drives the nut 15 that forms the ball screw pair to slide on the outer wall of the screw 14. The rack on the outer wall of the nut 15 engages with the sector teeth on the rocker shaft 10, and the rack of the nut 15 moves to drive the rocker shaft 9. The sector teeth rotate, and the torque output by the rocker shaft 10 drives the tire to rotate, thereby realizing the steering operation of the vehicle. At the same time, the nut 15 moves to push the push plate 230 to move on the inner wall of the rectangular through hole 12, and the push plate 230 moves to drive the fixed plate 239 to slide on the inner wall of the rectangular through hole 216, and drives the fixed plate 1 238 to make the movable plate 237 slide in the guide groove 214. When the movable plate 237 slides to the top of the liquid outlet pipe 215 and is no longer blocked, the lubricating oil in the storage box 211 flows into the interior of the electric power steering device 1 through the liquid outlet pipe 215, realizing automatic addition of lubricating oil, and the movable plate 237 moves to drive the connection The block 236 moves so that the sleeve 234 slides on the slide rod 232 and compresses the spring 233. Then, when the nut 15 moves to the other side, the spring 233 pushes the sleeve 234 to drive the connecting block 236 to reset the movable plate 237 and block the liquid outlet pipe 215. The water pump 222 extracts lubricating oil from the connecting shell 18 through the connecting pipe 1 223 and then transports it back to the storage tank 211 through the connecting pipe 224, so that the lubricating oil is circulated, ensuring that the lubricating oil in the electric power steering device 1 is sufficient and can be continuously recycled, further improving the working efficiency and service life of the electric power steering device 1, and ensuring the smoothness and stability of the vehicle steering operation. By inserting the electric control mechanism 31 and the fixing ring 32 into the placement groove 3319, and then twisting the hexagonal block 3322, the limit plate 3321 is rotated on the inner wall of the circular through hole 4 3310, and the worm 3323 is driven to rotate. The rotation of the worm 3323 causes the worm wheel 3324 to rotate. The rotation of the worm wheel 3324 drives the fixing rod 1 3325 to rotate in the circular through hole 1 3314. The rotation of the fixing rod 1 3325 drives the conical teeth 1 3326 at both ends to rotate. The rotation of the conical teeth 1 3326 causes the meshing conical teeth 2 3327 to rotate. The rotation of the conical teeth 2 3327 drives the fixing rod 2 3328 to rotate. When rod 2 3328 rotates, the gear 3329 on it rotates accordingly. The rotation of gear 3329 engages with the teeth 33201, driving the pressure plate 3320 to rotate around the hinge point with the support sleeve 33202, so that the pressure plate 3320 is gradually pressed down until the bottom of the pressure plate 3320 away from the gear 3329 is tightly pressed against the top of the fixing ring 32, thereby firmly fixing the electronic control mechanism 31 on the mounting seat 33, ensuring the stability of the entire X-EPS during vehicle operation, avoiding loosening of the electronic control mechanism 31 due to factors such as vibration, affecting the normal operation of the electric power steering 1, and further improving the reliability and safety of the vehicle steering system.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up", "down", "left", and "right" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict. The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An X-EPS with a compact space structure, comprising an electric power steering (1), characterized in that: The top of the electric power steering gear (1) is provided with an automatic lubricating oil adding structure (2), and the bottom of the electric power steering gear (1) is provided with a fixing structure (3); The electric power steering device (1) comprises a housing (11), a rectangular through hole (12) extending to the interior is provided on both left and right sides of the top of the outer wall of the housing (11), bearings (13) are fixedly connected to the left and right ends of the inner wall of the housing (11), screws (14) are fixedly connected to the inner walls of the two bearings (13), nuts (15) are threadedly connected to the outer walls of the screws (14), and the raceways of the screws (14) and the nuts (15) are filled with steel balls to form a ball screw pair; The automatic lubricating oil adding structure (2) comprises a mounting assembly (21), a top of the mounting assembly (21) is provided with an extraction assembly (22), and an interior of the mounting assembly (21) is provided with an oil drain assembly (23); The fixed structure (3) comprises an electric control mechanism (31), a fixing ring (32) is fixedly connected to the lower side of the outer wall of the electric control mechanism (31), and a mounting seat (33) is provided at the bottom of the electric control mechanism (31).

2. The X-EPS with a compact space structure according to claim 1, characterized in that: The outer wall of the nut (15) is processed with a rack, and the outer wall of the nut (15) is provided with a plurality of steel balls. The outer wall of the nut (15) is provided with a conduit (16), and the steel balls on the outer wall of the nut (15) circulate in reverse through the conduit (16). The inner wall of the shell (11) is provided with a pressing block (17), and the pressing block (17) compacts the conduit (16). The outer wall of the rack of the nut (15) is meshedly connected with the rocker shaft (10), and the rocker shaft (10) is processed with fan teeth. The lower side of the outer wall of the shell (11) is fixedly connected with a connecting shell (18), and a needle bearing (19) is provided inside the connecting shell (18). The connecting shell (18) is connected to the shell (11), and the inner wall of the rocker shaft (10) is fixedly connected to the outer wall of the needle bearing (19).

3. The X-EPS with a compact space structure according to claim 1, characterized in that: The installation component 1 (21) includes a storage box (211), the top of the storage box (211) is fixedly connected to a liquid inlet (212), the interior of the liquid inlet (212) is connected to the interior of the storage box (211), and the end of the liquid inlet (212) away from the storage box (211) is fixedly connected to a fixing pipe (213), the left and right sides of the bottom of the inner wall of the storage box (211) are provided with guide grooves (214), the bottom of the inner wall of the guide groove (214) is provided with a circular fixing hole extending to the outside, the inner wall of the circular fixing hole is fixedly connected to a liquid outlet pipe (215), and the left and right sides of the storage box (211) are provided with rectangular through-hole 2 (216) extending to the inside.

4. The X-EPS with a compact space structure according to claim 1, characterized in that: The extraction component (22) includes a protective shell (221), the bottom of the protective shell (221) is fixedly connected to the top of the storage box (211), a water pump (222) is provided inside the protective shell (221), a water inlet end of the water pump (222) is fixedly connected to a connecting pipe 1 (223), an end of the connecting pipe 1 (223) away from the water pump (222) passes through the outside of the protective shell (221), a plurality of fixing sleeves (225) are fixedly connected to the outer wall of the connecting pipe 1 (223) away from the water pump (222), a water outlet end of the protective shell (221) is fixedly connected to a connecting pipe 2 (224), an end of the connecting pipe 2 (224) away from the water pump (222) passes through the inside of the storage box (211), and an end of the connecting pipe 1 (223) away from the water pump (222) passes through the inside of the connecting shell (18).

5. The X-EPS with a compact space structure according to claim 1, characterized in that: The oil discharge assembly (23) includes two fixed blocks (231), the left and right sides of the fixed blocks (231) are fixedly connected to slide bars (232), the sides of the outer walls of the left and right slide bars (232) that are away from each other are sleeved with springs (233), the sides of the outer walls of the left and right slide bars (232) that are close to each other are movably connected to slide sleeves (234), the ends of the left and right slide bars (232) that are away from each other are fixedly connected to support plates (235), the bottom of the support plate (235) is fixedly connected to the inner wall of the storage box (211), and the sides of the front and rear slide sleeves (234) that are close to each other are fixedly connected to connecting blocks (236).

6. The X-EPS with a compact space structure according to claim 5, characterized in that: The bottom of the connecting block (236) is fixedly connected to a movable plate (237), the outer wall of the movable plate (237) is movably connected to the inner wall of the guide slot (214), the tops of the two movable plates (237) are fixedly connected to a fixed plate 1 (238) on the side away from each other, the upper part of the two fixed plates 1 (238) is fixedly connected to a fixed plate 2 (239), the outer wall of the fixed plate 2 (239) is movably connected to the inner wall of the rectangular through hole 2 (216), the bottoms of the two fixed plates 2 (239) are fixedly connected to a push plate (230) on the side away from each other, the outer wall of the push plate (230) is movably connected to the inner wall of the rectangular through hole 1 (12), and the lower part of the side where the two push plates (230) are close to each other is movably connected to the outer wall of the nut (15).

7. The X-EPS with a compact space structure according to claim 1, characterized in that: The mounting seat (33) includes a second mounting component (331), and a fixing component (332) is provided inside the second mounting component (331).

8. The X-EPS with a compact space structure according to claim 7, characterized in that: The second mounting component (331) includes a base (3311), a first mounting groove (3312) is provided on the top front side of the base (3311), second mounting grooves (3313) are provided on the left and right sides of the top front side of the base (3311), and a first circular through hole (3314) is provided on the left and right sides of the inner wall of the first mounting groove (3312) and extends into the interior of the second mounting groove (3313).

9. The X-EPS with a compact space structure according to claim 8, characterized in that: The left and right sides of the top of the base (3311) are provided with mounting grooves three (3315), the left and right sides of the rear side of the top of the base (3311) are provided with mounting grooves four (3316), the rear side of the inner wall of the mounting groove three (3315) is provided with a circular through hole two (3317) that penetrates into the interior of the mounting groove four (3316), the front side of the inner wall of the mounting groove three (3315) is provided with a circular through hole three (3318) that penetrates into the interior of the mounting groove two (3313), a placement groove (3319) is provided in the middle position of the top of the base (3311), the inner wall of the placement groove (3319) is movably connected to the outer wall of the fixing ring (32), and the front side of the inner wall of the mounting groove one (3312) is provided with a circular through hole four (3310) that penetrates to the outside.

10. The X-EPS with a compact space structure according to claim 7, characterized in that: The fixing assembly (332) includes a limiting plate (3321), the outer wall of the limiting plate (3321) is movably connected to the inner wall of the circular through hole four (3310), the front end of the limiting plate (3321) is fixedly connected to a hexagonal block (3322), the rear end of the limiting plate (3321) is fixedly connected to a worm (3323), the outer wall of the worm (3323) is meshedly connected to a worm wheel (3324), the rear end of the worm (3323) is fixedly connected to the mounting groove one (3312), The inner wall of the worm wheel (3324) is fixedly connected to a fixing rod (3325), the outer wall of the fixing rod (3325) is movably connected to the inner wall of the circular through hole (3314), the left and right ends of the fixing rod (3325) are fixedly connected to a conical tooth (3326), the outer wall of the conical tooth (3326) is meshedly connected to a conical tooth (3327), the inner wall of the conical tooth (3327) is fixedly connected to the fixing rod (332 8), the rear end of the second fixing rod (3328) is rotatably connected to the inner wall of the fourth mounting groove (3316), the front end of the second fixing rod (3328) is rotatably connected to the inner wall of the second mounting groove (3313), and the outer wall of the second fixing rod (3328) corresponding to the third mounting groove (3315) and the fourth mounting groove (3316) is fixedly connected to two gears (3329), and a pressure plate (3320) is provided above the gear (3329), and the outer wall of the pressure plate (3320) is close to the gear A plurality of teeth (33201) are fixedly connected in a circular array at one end of the wheel (3329), and the outer wall of the teeth (33201) is meshedly connected with the outer wall of the gear (3329). The bottom of the pressure plate (3320) away from the gear (3329) is movably connected to the top of the fixed ring (32). The front and rear sides of the pressure plate (3320) are both hinged with support sleeves (33202), and the bottom of the support sleeve (33202) is fixedly connected to the top of the base (3311).

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