CN220535751U

CN220535751U - Steering device and vehicle

Info

Publication number: CN220535751U
Application number: CN202321857455.6U
Authority: CN
Inventors: 宁岳林; 苏艳茜; 杨初星; 林波; 何鹏
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-02-27
Anticipated expiration: 2033-07-13

Abstract

The embodiment of the application provides a steering device and vehicle, and steering device includes: a screw rod and a screw rod nut; a through hole is formed in the screw nut, and a first meshing part, an oil storage tank and a second meshing part are sequentially arranged on the hole wall of the through hole along the axial direction; the first engagement portion and the second engagement portion are engaged with the screw rod, respectively, and the oil storage tank is used for containing lubricant. Thus, a better lubricating effect is realized on the screw rod and the screw rod nut through the lubricant in the oil storage tank. Because the oil storage tank is located between first meshing portion and the second meshing portion, the lubricant in the oil storage tank can flow to first meshing portion and second meshing portion respectively to both sides, lubricates the engagement face with first meshing portion and second meshing portion on the lead screw, provides better lubrication effect. The lubricant can be uniformly adhered to the screw rod and the screw rod nut, and is not easy to gather. The loss caused by splashing of the lubricant during high-speed rotation of the screw rod or the screw rod nut is avoided, pollution to other parts is avoided, and the lubrication effect is improved.

Description

Steering device and vehicle

Technical Field

The application belongs to the technical field of vehicles, and particularly relates to a steering device and a vehicle.

Background

Along with the development of vehicle technology and the improvement of living standard of people, the requirements of people on the comfort and safety of the vehicle are higher and higher, wherein the steering device can reduce the steering radius of the vehicle in turning, and has important effect on the comfort and safety of driving.

In the prior art, the steering device comprises a screw rod and a screw rod nut, wherein the screw rod nut is sleeved on the screw rod and meshed with the screw rod. Because the screw nut rotates relative to the screw rod to generate larger abrasion, lubricant is usually required to be filled at the end part of the screw rod nut in the rotating process, so that the abrasion to the screw rod and the screw rod nut is reduced.

However, the inventor found in the course of studying the prior art that the operation process of filling the lubricant is complicated, the lubricant is easy to gather, and the lubricant is difficult to uniformly adhere to the screw rod and the screw rod nut. Moreover, the lubricant is easy to adhere to the end part of the screw nut, so that the lubricant is splashed to generate loss when the screw or the screw nut rotates at a high speed, other parts are polluted, the lubrication effect is poor, and the screw nut are abraded more.

Disclosure of Invention

The present utility model has been made in view of the above-mentioned problems, and an object of the present utility model is to provide a steering apparatus and a vehicle that overcome or at least partially solve the above-mentioned problems.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, an embodiment of the present application proposes a steering device, including: a screw rod and a screw rod nut;

a through hole is formed in the screw rod nut, and a first meshing part, an oil storage tank and a second meshing part are sequentially arranged on the hole wall of the through hole along the axial direction;

the first engagement portion and the second engagement portion are engaged with the screw rod, respectively, and the oil storage tank is used for containing lubricant.

Optionally, the oil storage groove is recessed toward a direction away from the screw rod.

Optionally, the screw nut is further provided with an oil filling port assembly communicated with the oil storage tank, so that lubricant is filled into the oil storage tank through the oil filling port assembly.

Optionally, the oil fill port assembly includes a gun opening and a reservoir opening;

the oil storage tank opening is communicated with the oil storage tank, the oil gun opening is connected with the oil storage tank opening, and the diameter of the oil gun opening is larger than that of the oil storage tank opening.

Optionally, the oil filling port assembly further comprises a transition part, one end of the transition part is connected with the oil filling gun opening, and the other end of the transition part is connected with the oil storage tank opening;

the diameter of the transition portion increases in sequence in the direction from the oil reservoir opening to the grease gun opening.

Optionally, the oil filling port assembly further comprises an inlet port connected to an end of the oil filling gun opening remote from the transition portion;

the diameter of the inlet increases in sequence from one end of the inlet close to the opening of the grease gun to one end of the inlet away from the opening of the grease gun.

Optionally, the steering device further comprises a blocking piece, wherein the blocking piece is detachably connected to the introducing port;

the blocking member blocks the introduction port when the blocking member is connected to the introduction port.

Optionally, the plugging piece comprises one of a belt wheel, a plugging block and plugging glue.

Optionally, the steering device further comprises an oil sealing piece, and a gap is arranged between the end part of the screw rod nut and the screw rod;

the oil seal piece is connected to the end part of the screw rod nut along the axial direction of the screw rod nut, and is at least partially embedded in the gap, and the oil seal piece is in interference fit with the screw rod.

Optionally, the oil seal comprises a skeleton and a wiper blade;

the framework is connected to the end part of the screw rod nut along the axial direction of the screw rod nut, at least part of the framework is embedded in the gap, the scraping blade is connected to the framework and extends along the axial direction of the screw rod, and the scraping blade is in interference fit with the screw rod.

Optionally, the oil seal further includes a pressing piece, where the pressing piece is connected to the skeleton and connected to one end of the wiper blade, so as to press the wiper blade onto the skeleton.

Optionally, the oil seal further includes a gasket connected between the pressing piece and the wiper blade to cushion the pressing piece and the wiper blade.

Optionally, the skeleton includes the butt portion and with the portion of inlaying that the butt portion is connected establishes, the butt portion connect in the outer wall of the tip of screw-nut, inlay and establish the portion and inlay and locate the clearance and connect in the inner wall of tip.

Optionally, the wiper blade is made of one of plastics and rubber.

Optionally, the thickness of the oil seal is any one of 1-5 mm.

Optionally, the oil seal comprises a first oil seal and a second oil seal;

the first oil seal piece is connected to one end of the screw rod nut along the axial direction of the screw rod nut, at least part of the first oil seal piece is embedded in the gap, the second oil seal piece is connected to the other end of the screw rod nut along the axial direction of the screw rod nut, at least part of the second oil seal piece is embedded in the gap, and the first oil seal piece and the second oil seal piece are in interference fit with the screw rod.

Optionally, the steering device further comprises an oil storage pipe, the oil storage pipe is embedded in the oil storage tank, and an oil outlet is arranged on one side, close to the screw rod, of the oil storage pipe.

In a second aspect, embodiments of the present application provide a vehicle including the steering device.

In this embodiment of the present application, the steering device includes: a screw rod and a screw rod nut; a through hole is formed in the screw rod nut, and a first meshing part, an oil storage tank and a second meshing part are sequentially arranged on the hole wall of the through hole along the axial direction; the first engagement portion and the second engagement portion are engaged with the screw rod, respectively, and the oil storage tank is used for containing lubricant. Like this, the lead screw inlays the through-hole of locating the lead screw nut, and when the lead screw nut rotated relative to the lead screw, realized better meshing effect with the lead screw through first meshing portion and second meshing portion, realized better lubrication effect to lead screw and lead screw nut through the lubricant that holds in the oil storage tank simultaneously. Since the oil reservoir is located between the first engagement portion and the second engagement portion, the lubricant in the oil reservoir can flow to both sides toward the first engagement portion and the second engagement portion, respectively. In the process that the screw rod nut rotates relative to the screw rod, the lubricant in the oil storage tank can lubricate the meshing surfaces of the screw rod, the first meshing part and the second meshing part, and a good lubricating effect is provided. The lubricant can be uniformly attached to the screw rod and the screw rod nut, is not easy to gather, and also avoids the problem that the lubricant is easy to attach to the end part of the screw rod nut. Because the oil storage tank is positioned at the middle position of the screw rod nut, the loss caused by lubricant splashing when the screw rod or the screw rod nut rotates at high speed is avoided, the pollution to other parts is avoided, the lubrication effect is improved, and the abrasion of the screw rod and the screw rod nut is greatly reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a steering device according to an embodiment of the present application;

fig. 2 is a schematic structural view of a lead screw nut of a steering device according to an embodiment of the present application;

FIG. 3 is a schematic view of the cross-sectional B-B structure of FIG. 2 of a lead screw nut of a steering device according to an embodiment of the present application;

FIG. 4 is a schematic view of the cross-sectional A-A configuration of FIG. 1 of a steering apparatus according to an embodiment of the present application;

FIG. 5 is an enlarged schematic view of the steering device of FIG. 4 at M according to an embodiment of the present application;

FIG. 6 is an enlarged schematic view of the steering device of FIG. 4 at N according to an embodiment of the present application;

fig. 7 is a schematic structural view of an oil seal of a steering device according to an embodiment of the present application.

Reference numerals: 100-screw rod; 200-screw nuts; 210-a through hole; 220-a first engagement portion; 230-an oil storage tank; 240-a second engagement portion; 250-an oil filling port assembly; 251-gun opening; 252-sump opening; 253-transition; 254-an inlet; 260-a closure; 270-an oil seal; 271-a backbone; 272-scraping blade; 273-tabletting; 274-a gasket; 275-abutment; 276-insert; 280-a first oil seal; 281-second oil seal.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The features of the terms "first", "second", and the like in the description and in the claims of this application may be used for descriptive or implicit inclusion of one or more such features. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 7, there are shown schematic structural diagrams of a steering device according to an embodiment of the present application, which may specifically include: a screw 100 and a screw nut 200;

a through hole 210 is arranged in the screw nut 200, and a first meshing part 220, an oil storage tank 230 and a second meshing part 240 are sequentially arranged on the hole wall of the through hole 210 along the axial direction;

the first engagement portion 220 and the second engagement portion 240 are engaged with the screw 100, respectively, and the oil reservoir 230 is used to contain a lubricant.

In this embodiment, the screw rod 100 is embedded in the through hole 210 of the screw rod nut, and when the screw rod nut rotates relative to the screw rod 100, a better meshing effect is achieved with the screw rod 100 through the first meshing portion 220 and the second meshing portion 240, and meanwhile, a better lubrication effect is achieved on the screw rod and the screw rod nut 200 through the lubricant contained in the oil storage tank 230. Since the oil reservoir 230 is located between the first and second engagement portions 220 and 240, the lubricant in the oil reservoir 230 may flow to both sides toward the first and second engagement portions 220 and 240, respectively. During the rotation of the screw nut relative to the screw 100, the lubricant in the oil storage tank 230 can lubricate the engagement surfaces of the screw 100 with the first engagement portion 220 and the second engagement portion 240, so as to provide a better lubrication effect. The lubricant can be uniformly adhered to the screw rod 100 and the screw rod nut 200, is not easy to gather, and the problem that the lubricant is easy to adhere to the end part of the screw rod nut 200 is avoided. Because the oil storage tank 230 is located in the middle of the screw nut 200, the loss caused by lubricant splashing when the screw 100 or the screw nut 200 rotates at high speed is avoided, the pollution to other parts is avoided, the lubrication effect is improved, and the abrasion of the screw 100 and the screw nut 200 is greatly reduced.

Specifically, in the embodiment of the present application, the steering device may be used for a front wheel of a vehicle, may be used for a rear wheel of a vehicle, and may also be applied to both a front wheel of a vehicle and a rear wheel of a vehicle.

For example, in the embodiment of the present application, the screw rod 100 may be a trapezoidal threaded screw rod, that is, the cross-sectional shape of the thread of the screw rod 100 is trapezoidal, so that the screw rod 100 has better wear resistance and mechanical properties, and better self-locking performance. In addition, the trapezoidal thread screw 100 has lower requirements on manufacturing process, is simple and convenient to process, and is beneficial to reducing the production cost.

The lubricant may be lubricating oil or grease, or may be a mineral lubricant, a plant lubricant, an animal lubricant, a synthetic lubricant, or the like, and may be selected according to actual needs, and the specific type of the lubricant in the embodiments of the present application may not be limited.

Alternatively, in the present embodiment, the oil reservoir 230 is recessed in a direction away from the screw 100. In this way, the oil storage tank 230 can have a larger gap with the screw rod 100, can accommodate more lubricant, and is convenient for better lubrication effect on the screw nut 200 and the screw rod 100.

In the embodiment of the present application, the lead screw nut 200 is optionally further provided with an oil filling port assembly 250 in communication with the oil reservoir 230 to fill the oil reservoir 230 with lubricant through the oil filling port assembly 250. In this way, after the screw nut 200 is fitted around the screw 100, a lubricant may be injected into the oil reservoir 230 through the oil filler port assembly 250 by using an oil filler gun or the like so that the lubricant may flow from the oil reservoir 230 to both sides of the first engagement portion 220 and the second engagement portion 240, respectively.

Specifically, in the present embodiment, the oil fill port assembly 250 includes a gun opening 251 and a sump opening 252; the sump opening 252 communicates with the sump 230, and the gun opening 251 is connected to the sump opening 252, with the gun opening 251 having a diameter greater than the diameter of the sump opening 252. In this manner, communication between the oil fill port assembly 250 and the oil reservoir 230 is achieved through the oil reservoir opening 252, and the gun opening 251 is connected to the oil reservoir opening 252 for insertion of a gun through the gun opening 251. The diameter of the oil gun opening 251 is larger than that of the oil storage tank opening 252, so that the oil gun can be conveniently inserted into the oil gun opening 251, and the operation convenience is improved. And allows lubricant to be injected into the oil reservoir 230 along the smaller diameter oil reservoir opening 252, shortening the lubricant flow-through distance.

Optionally, in the embodiment of the present application, the oil filling port assembly 250 further includes a transition portion 253, one end of the transition portion 253 is connected to the oil gun opening 251, and the other end of the transition portion 253 is connected to the oil reservoir opening 252; the transition 253 increases in diameter in sequence in the direction from the sump opening 252 to the gun opening 251. In this way, lubricant can be transferred from the gun opening 251 to the reservoir opening 252 more smoothly by the transition 253. In addition, the grease gun opening 251, the transition portion 253 and the oil reservoir opening 252 are combined to form a stepped structure, so that the phenomenon that the lubricant flows back can be reduced, and the waste of the lubricant is reduced.

In some alternative embodiments of the present application, the oil fill port assembly 250 further includes an inlet port 254, the inlet port 254 being connected to an end of the oil gun opening 251 remote from the transition portion 253; the diameter of the introduction port 254 increases in order from the end of the introduction port 254 near the gun opening 251 to the end far from the gun opening 251. In this way, the introduction opening 254 guides the insertion of the grease gun into the grease gun opening 251, thereby further improving the convenience of operation.

In this embodiment, optionally, the oil filling port assembly 250 may be further configured with a plurality of oil filling holes distributed along the circumferential direction, and the lubricant is filled into the oil storage tank 230 through the plurality of oil filling holes, so that the filling efficiency of the lubricant can be improved.

Optionally, in an embodiment of the present application, the steering device further includes a blocking member 260, and the blocking member 260 is detachably connected to the introducing port 254; when the blocking member 260 is connected to the inlet 254, the blocking member 260 blocks the inlet 254. Thus, the oil filling port assembly 250 is plugged through the plugging piece 260, so that the lubricant is prevented from splashing out of the oil storage tank 230, the loss and waste of the lubricant are reduced, and the lubrication effect is improved.

Illustratively, in the present embodiment, the blocking member 260 comprises one of a pulley, a block, and a blocking gum. Wherein, the band pulley belongs to the original structure of vehicle, can be located the top of oiling mouth subassembly 250, through connecting the band pulley in leading-in 254, realizes the shutoff to oiling mouth subassembly 250, and is simple convenient, need not set up solitary shutoff structure. In addition, the blocking piece 260 can be a blocking block, such as a bearing, a nut or a screw plug, etc., and the blocking piece 260 can also be a blocking adhesive, in particular a blocking rubber ring, etc., so that the sealing performance is better. The blocking member 260 may be configured according to actual needs, and the specific type of the blocking member may not be limited in the embodiments of the present application.

Optionally, in the embodiment of the present application, the steering device further includes an oil seal 270, and a gap is provided between an end of the lead screw nut 200 and the lead screw 100; the oil seal 270 is connected to the end of the screw nut 200 along the axial direction of the screw nut, and is at least partially embedded in the gap, and the oil seal 270 is in interference fit with the screw 100. Like this, carry out the oil blanket through oil blanket piece 270 to the tip of lead screw nut 200, because oil blanket piece 270 and lead screw 100 interference fit, oil blanket piece 270 can scrape the lubricating oil on the lead screw 100 when the lead screw 100 is rotatory, avoided lubricating oil to produce easily and reunite to, and oil blanket piece 270 can keep the lubricating oil that scrapes down in the through-hole 210 of lead screw nut 200, avoid lubricating oil to produce easily and splash and cause the pollution to other parts, also avoided lubricating oil to produce easily and lost.

Specifically, in the embodiment of the present application, the oil seal 270 includes a frame 271 and a wiper 272; the frame 271 is connected to an end of the screw nut 200 along an axial direction of the screw nut and is at least partially embedded in the gap, the wiper 272 is connected to the frame 271 and extends along an axial direction of the screw 100, and the wiper 272 is in interference fit with the screw 100. Thus, the oil seal 270 has better structural strength through the framework 271, so that the oil seal 270 and the screw nut 200 have better connection strength. And can be tightly attached to the thread of the screw rod 100 by the wiper 272, and achieve a good interference fit with the screw rod 100, so as to scrape the lubricating oil on the screw rod 100 and keep it in the through hole 210 of the screw nut 200. For example, the material of the skeleton 271 may be metal, such as steel, so that the skeleton 271 has better structural strength, and the specific material of the skeleton 271 in the embodiment of the present application may not be limited.

In this embodiment, for example, the material of the wiper 272 may be one of plastic and rubber, so that the wiper 272 has a certain elasticity and can generate elastic deformation, so that the wiper 272 and the screw 100 can achieve a better interference fit.

Illustratively, in the present embodiment, the thickness of the oil seal 270 is any one of 1-5 mm. Specifically, the thickness of the oil seal 270 in the axial direction of the lead screw nut may be 2mm or 3mm or 4mm, etc., so that the oil seal 270 is thinner, occupies a smaller space, and is convenient for layout.

Optionally, in the embodiment of the present application, the oil seal 270 further includes a pressing piece 273, and the pressing piece 273 is connected to the frame 271 and connected to one end of the wiper 272 to press the wiper 272 to the frame 271. In this way, the strength of the connection between the wiper 272 and the frame 271 is enhanced by the pressing piece 273, and the wiper 272 is prevented from easily coming off the frame 271 when relatively moving with respect to the screw 100. Illustratively, the material of the pressing piece 273 may be metal, such as steel, so that the pressing piece 273 has better structural strength, and the specific material of the pressing piece 273 in the embodiment of the present application may not be limited.

In some alternative embodiments of the present application, the oil seal 270 further includes a gasket 274, the gasket 274 being connected between the press 273 and the wiper 272 to cushion the press 273 and the wiper 272. In this way, the stress generated between the pressing piece 273 and the blade 272 is buffered by the spacer 274, so that the pressing piece 273 is prevented from easily damaging the blade 272. Illustratively, the material of the pad 274 may be rubber or silicone, so that the pad 274 has better flexibility to provide better cushioning effect.

Alternatively, in the embodiment of the present application, the skeleton 271 includes an abutting portion 275 and an embedding portion 276 connected to the abutting portion 275, the abutting portion 275 is connected to an outer wall of an end portion of the screw nut 200, and the embedding portion 276 is embedded in the gap and connected to an inner wall of the end portion. Thus, the framework 271 and the screw nut 200 have better connection strength through the abutting part 275, the framework 271 is not easy to separate from the screw nut 200, the framework 271 and the screw nut 200 are nested through the embedded part 276, the scraping blade 272 is arranged conveniently, and the oil seal 270 and the screw 100 are in interference fit.

In the present embodiment, optionally, the oil seal 270 includes a first oil seal 280 and a second oil seal 281; the first oil seal 280 is connected to one end of the screw nut 200 along the axial direction of the screw nut, and is at least partially embedded in the gap, the second oil seal 281 is connected to the other end of the screw nut 200 along the axial direction of the screw nut, and is at least partially embedded in the gap, and both the first oil seal 280 and the second oil seal 281 are in interference fit with the screw 100. In this way, both ends of the screw nut 200 are respectively oil-sealed through the first oil sealing member 280 and the second oil sealing member 281, thereby improving the oil sealing effect on the screw nut 200.

In some alternative embodiments of the present application, the steering device further includes an oil storage pipe, the oil storage pipe is embedded in the oil storage tank 230, and an oil outlet is disposed on a side of the oil storage pipe, which is close to the screw 100. Specifically, the oil storage pipe is adapted to the shape of the oil storage tank 230 in a ring-shaped structure, so that the screw rod 100 and the screw nut 200 can be lubricated by firstly accommodating the lubricant in the oil storage pipe and then disposing the oil storage pipe in the oil storage tank 230, and the lubricant flows out from the oil outlet of the oil storage pipe. The oil filling port assembly 250 is not required, and the step of filling the oil reservoir 230 with lubricant is omitted.

In summary, the steering device according to the embodiments of the present application may at least include the following advantages:

By way of example, the vehicle may include a small, medium, three-compartment, truck, trailer, CDV (Car-developed Van), MPV (multi-purpose vehicles), SUV (Sport Utility Vehicles ), and the like. The specific type of the vehicle may not be limited in the embodiments of the present application.

The vehicle according to the embodiment of the application at least can comprise the following advantages:

in this embodiment of the present application, the vehicle includes the steering device, the steering device includes: a screw rod and a screw rod nut; a through hole is formed in the screw rod nut, and a first meshing part, an oil storage tank and a second meshing part are sequentially arranged on the hole wall of the through hole along the axial direction; the first engagement portion and the second engagement portion are engaged with the screw rod, respectively, and the oil storage tank is used for containing lubricant. Like this, the lead screw inlays the through-hole of locating the lead screw nut, and when the lead screw nut rotated relative to the lead screw, realized better meshing effect with the lead screw through first meshing portion and second meshing portion, realized better lubrication effect to lead screw and lead screw nut through the lubricant that holds in the oil storage tank simultaneously. Since the oil reservoir is located between the first engagement portion and the second engagement portion, the lubricant in the oil reservoir can flow to both sides toward the first engagement portion and the second engagement portion, respectively. In the process that the screw rod nut rotates relative to the screw rod, the lubricant in the oil storage tank can lubricate the meshing surfaces of the screw rod, the first meshing part and the second meshing part, and a good lubricating effect is provided. The lubricant can be uniformly attached to the screw rod and the screw rod nut, is not easy to gather, and also avoids the problem that the lubricant is easy to attach to the end part of the screw rod nut. Because the oil storage tank is positioned at the middle position of the screw rod nut, the loss caused by lubricant splashing when the screw rod or the screw rod nut rotates at high speed is avoided, the pollution to other parts is avoided, the lubrication effect is improved, and the abrasion of the screw rod and the screw rod nut is greatly reduced.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A steering apparatus, characterized in that the steering apparatus comprises: a screw rod and a screw rod nut;

2. The steering device according to claim 1, wherein the oil reservoir is recessed in a direction away from the lead screw.

3. The steering device according to claim 1, wherein the lead screw nut is further provided with an oil filler port assembly communicating with the oil reservoir to inject lubricant into the oil reservoir through the oil filler port assembly.

4. A steering device in accordance with claim 3 wherein said oil fill port assembly includes a gun opening and a sump opening;

5. The steering device of claim 4, wherein the oil fill port assembly further comprises a transition portion having one end connected to the oil fill gun opening and the other end connected to the oil reservoir opening;

6. The steering device of claim 5, wherein the oil fill port assembly further comprises an inlet port connected to an end of the oil gun opening remote from the transition section;

7. The steering device of claim 6, further comprising a blocking member removably coupled to the inlet port;

8. The steering device of claim 7, wherein the blocking member comprises one of a pulley, a block, and a blocking adhesive.

9. The steering device according to claim 1, further comprising an oil seal, wherein a gap is provided between an end of the lead screw nut and the lead screw;

10. The steering device according to claim 9, wherein the oil seal includes a skeleton and a wiper blade;

11. The steering device of claim 10, wherein the oil seal further comprises a pressing piece connected to the frame and to one end of the wiper blade to press the wiper blade against the frame.

12. The steering device of claim 11, wherein the oil seal further comprises a gasket coupled between the blade and the wiper blade to cushion the blade and the wiper blade.

13. The steering device according to claim 10, wherein the skeleton includes an abutting portion and an embedding portion connected to the abutting portion, the abutting portion being connected to an outer wall of an end portion of the lead screw nut, the embedding portion being embedded in the gap and connected to an inner wall of the end portion.

14. The steering device according to claim 10, wherein the wiper blade is made of one of plastic and rubber.

15. The steering device according to claim 9, wherein the thickness of the oil seal is any one of 1 to 5 mm.

16. The steering device according to claim 9, wherein the oil seal includes a first oil seal and a second oil seal;

17. The steering device according to claim 1, further comprising an oil storage pipe embedded in the oil storage tank, wherein an oil outlet is provided on a side of the oil storage pipe close to the screw rod.

18. A vehicle, characterized in that it comprises a steering device according to any one of claims 1-17.