CN117948348B - Self-lubricating hub bearing unit - Google Patents

Abstract

The present invention relates to the field of automobile industrial machinery, and discloses a self-lubricating wheel hub bearing unit, comprising an inner guide rail, an oil control device, a sliding device, an oil delivery device and a leak-proof device; the sliding device is slidably connected to the inner guide rail, the oil control device is fixedly arranged on the upper side of the sliding device, lubricating oil is stored in the oil delivery device, the oil delivery device is arranged on the upper side of the oil control device, and the leak-proof device is arranged on the lower end of the sliding device close to the inner guide rail; the oil delivery device delivers lubricating oil required for sliding to the sliding device at a uniform flow rate through the regulation of the oil control device, the leak-proof device is electrically connected to the oil control device, and when the lubricating oil leaks, the leak-proof device controls the oil control device to stop delivering oil to the sliding device while absorbing the overflowed lubricating oil, effectively preventing oil leakage while continuously lubricating the sliding device, making the use of the self-lubricating wheel hub bearing unit safer.

Description

A self-lubricating hub bearing unit

Technical Field

The invention relates to the field of automobile industrial machinery, in particular to a self-lubricating wheel hub bearing unit.

Background Art

The "wheel hub bearing unit" is a type of automotive part, mainly used for the wheel hub of a car. This unit usually contains a bearing and a hub, and is an integrated component. Its main function is to support the rotation of the wheel, reduce friction, and improve the driving stability and safety of the vehicle. The design of the wheel hub bearing unit allows the wheel to rotate smoothly when the vehicle is driving, while also bearing part of the load of the vehicle's weight; in modern car design, the wheel hub bearing unit has become an important part. Compared with traditional bearing systems, wheel hub bearing units generally have longer service life, less maintenance requirements, and better performance. The installation of the wheel hub bearing unit is also relatively simple, which helps to reduce the complexity and cost of automobile manufacturing.

In the prior art, self-lubricating hub bearing units often produce greater friction due to insufficient lubricating oil, causing failures, and improper addition of lubricating oil will also lead to leakage of lubricating oil, causing mechanical failures and generating greater losses.

Based on the above technical problems, it is necessary to provide a self-lubricating hub bearing unit to solve the above technical problems.

Summary of the invention

The object of the present invention is to provide a self-lubricating hub bearing unit to solve the problems raised in the above background technology.

Based on the above ideas, the present invention provides the following technical solutions: a self-lubricating wheel hub bearing unit, comprising an inner guide rail, an oil control device, a sliding device, an oil delivery device and a leak-proof device; the sliding device is slidably connected to the inner guide rail, the oil control device is fixedly arranged on the upper side of the sliding device, the oil delivery device stores lubricating oil, the oil delivery device is arranged on the upper side of the oil control device, and the leak-proof device is arranged on the lower end of the sliding device close to the inner guide rail; the oil delivery device delivers the lubricating oil required for sliding to the sliding device at a uniform flow rate through the regulation of the oil control device, the leak-proof device is electrically connected to the oil control device, and when the lubricating oil leaks, the leak-proof device controls the oil control device to stop delivering oil to the sliding device while absorbing the overflowed lubricating oil, effectively preventing oil leakage while continuously lubricating the sliding device, making the use of the self-lubricating wheel hub bearing unit safer.

Preferably, the sliding device includes a lower cover, a steel ball, an oil storage tank, a guide groove and a notch; the upper end surface of the lower cover is provided with the guide groove, the guide groove is annularly arranged, a plurality of the steel balls are arranged in the guide groove, the plurality of the steel balls are fitted together, the middle position of the guide groove is provided with the oil storage tank for storing lubricating oil, the oil storage tank is provided with a plurality of notches in the direction of the steel ball, the outer side of the steel ball is fitted with the recessed straight groove of the inner guide rail, the lubricating oil is stored in the oil storage tank, and the lubricating oil is continuously transported to the moving steel ball through the notch, and the friction is effectively reduced through the cooperation between the steel ball and the inner guide rail, thereby improving the durability and precision of the inner guide rail.

Preferably, the oil control device includes an upper cover, an insertion rod, an electromagnet, and a hose, the hose vertically passing through the upper cover, the insertion rod extending into both sides of the upper cover, the end of the insertion rod located inside the upper cover can squeeze the hose to cause deformation, the end of the insertion rod located outside the upper cover is magnetic, the electromagnet is fixedly arranged at the connection position between the insertion rod and the upper cover, and the cross-sectional area of the hose can be changed by controlling the depth of the insertion rod to squeeze the hose, thereby achieving the effect of controlling the flow rate of the lubricating oil, and the appropriate flow rate of the lubricating oil can be adjusted according to actual production needs.

Preferably, the upper cover is fixedly arranged on the upper side of the lower cover, and the lower end of the hose faces the oil storage tank.

Preferably, the oil delivery device comprises an oil storage chamber, a window, an oil outlet, a rotating rod, a rope wheel, a buoy, a slide, a traction rope, an end cover and a rotating disk; the window is fixedly arranged on the upper side of the oil storage chamber, the oil outlet is arranged on the lower side of the oil storage chamber, two buoys are provided, and the two buoys are slidably connected with the slide opened in the oil storage chamber, the rope wheel is rotatably arranged at the bottom of the oil storage chamber, the traction rope is wound around the rope wheel, the traction rope is connected to the buoy, and the rope wheel is rotatably arranged at the bottom of the oil storage chamber, The rotating rod is fixedly provided on the upper side of the rope wheel, and the rotating disk is provided on the upper side of the rotating rod. The rotating disk is rotatably connected inside the window. The end cover is provided on one side of the oil storage chamber. A torsion spring may be provided at the connecting position between the rope wheel and the oil storage chamber. When the buoy is lowered, the rope wheel may gradually rotate with the action of the torsion spring, and the rotating disk can be driven to rotate by the rotation of the rope wheel. Scales and pointers may be engraved on the rotating disk and the oil level can be known by observing the rotation of the turntable. If the oil level is too small, oil can be added to the oil storage chamber through the end cover.

Preferably, the oil storage chamber is fixedly arranged on the upper side of the upper cover, and the oil outlet is inserted into the interior of the hose.

Preferably, the leakage prevention device includes an oil collecting bin, a through hole, a power supply, a conductive sheet, a pad, a filler, a conductive port, an infrared generator and an oil leakage hole; the through hole is provided on the upper end surface of the oil collecting bin, the filler is arranged at the bottom of the oil collecting bin, the upper end surface of the filler is provided with a pad slidably connected to the inner wall of the oil collecting bin, a plurality of the oil leakage holes are provided on the pad, the power supply is fixedly provided on the upper end of the pad, the conductive sheet is provided on both sides of the power supply, the conductive port is fixedly provided on both sides of the inner wall of the oil collecting bin, the filler is made of a material that swells when exposed to oil, when the filler is not expanded, the conductive sheet and the conductive port are not in contact for conduction; when the filler is expanded, the conductive sheet and the conductive port are in contact for conduction, the infrared generator is fixedly provided on the outside of the oil collecting bin, the infrared generator is electrically connected to the conductive port, the filler can be made by adding oil-absorbing resin into rubber, after the inner guide rail leaks oil, the lubricating oil soaks the filler, the power supply conducts through the conductive port to the infrared generator to generate an infrared signal.

Preferably, the sliding device also includes a guide sub-groove and a guide main groove. There are multiple guide sub-grooves, and multiple guide sub-grooves are opened on the side of the lower cover close to the inner guide rail. Multiple guide sub-grooves converge in the guide main groove, and the lower end of the guide main groove corresponds to the through hole. When the device leaks oil, the overflowed lubricating oil can directly flow into the oil collecting bin and be collected through the action of the guide groove, and will not overflow irregularly to cause damage to the workpiece.

Preferably, the electromagnet is electrically connected to the conductive port. When energized, the electromagnet can attract one end of the insertion rod located outside the upper cover. After the insertion rod is attracted, the end completely squeezes the hose to block the inflow of lubricating oil, thereby blocking the leakage of lubricating oil from the source.

Preferably, it also includes an alarm device; an infrared receiver; the alarm device is electrically connected to the infrared receiver, and when the infrared receiver receives a signal from the infrared generator, an alarm is issued to prevent further losses, which helps staff to repair in time, resume normal production, and save costs.

Compared with the prior art, the present invention has the following beneficial effects:

1. The flow of lubricating oil is controlled by the plunger. When the lubricating oil leaks, the electromagnet is turned on so that the plunger can block the inflow of lubricating oil in time.

2. Through the setting of oil collecting bins, fillers, diversion sub-slots and diversion main slots, the leaked lubricating oil can be collected regularly to prevent the leaked lubricating oil from damaging the device or workpiece.

3. The oil-expanding property of the filler can organically link the three effects of blocking the inflow of lubricating oil, collecting lubricating oil and issuing an alarm in time, without the need to set up multiple devices to complete the above operations.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a cross-sectional view of the present invention as a whole;

FIG2 is a cross-sectional view of the oil control device of the present invention when the electromagnet is connected;

FIG3 is a top view of the sliding device of the present invention;

FIG4 is a side view of the sliding device of the present invention;

FIG5 is a cross-sectional view of the oil delivery device of the present invention;

FIG6 is a cross-sectional view of the leakage prevention device of the present invention;

FIG. 7 is an internal top view of the leakage prevention device of the present invention.

In the figure: 1. inner guide rail; 2. oil control device; 201. upper cover; 202. plug rod; 203. electromagnet; 204. hose; 3. sliding device; 301. lower cover; 302. steel ball; 303. oil storage tank; 305. notch; 306. diversion sub-slot; 307. diversion main slot; 4. oil delivery device; 401. oil storage chamber; 402. window; 403. oil outlet; 404. rotating rod; 405. rope wheel; 406. buoy; 407. slideway; 408. traction rope; 410. turntable; 501. oil collecting bin; 502. through hole; 503. power supply; 504. conductive sheet; 505. pad; 506. filler; 507. conductive port.

DETAILED DESCRIPTION

Please refer to Figures 1 to 7. In an embodiment of the present invention, a self-lubricating hub bearing unit includes an inner guide rail 1; an oil control device 2; a sliding device 3; an oil delivery device 4; and a leak-proof device. The sliding device 3 is slidably connected to the inner guide rail 1, the oil control device 2 is fixedly arranged on the upper side of the sliding device 3, and the oil delivery device 4 stores lubricating oil. The oil delivery device 4 is arranged on the upper side of the oil control device 2, and the leak-proof device is arranged on the lower end of the sliding device 3 near the inner guide rail 1. The oil delivery device 4 delivers the lubricating oil required for sliding to the sliding device 3 at a uniform flow rate through the regulation of the oil control device 2, and the leak-proof device is electrically connected to the oil control device. When the lubricating oil leaks, the leak-proof device controls the oil control device 2 to stop delivering oil to the sliding device 3 while absorbing the overflowed lubricating oil, effectively preventing oil leakage while continuously lubricating the sliding device 3, making the use of the self-lubricating hub bearing unit safer.

Specifically, the sliding device 3 includes: a lower cover 301; a steel ball 302; an oil storage tank 303; a guide groove; and a notch 305; the upper end surface of the lower cover 301 is provided with the guide groove, the guide groove is annularly arranged, a plurality of the steel balls 302 are arranged in the guide groove, the plurality of the steel balls 302 fit together, the middle position of the guide groove is provided with the oil storage tank 303 for storing lubricating oil, the oil storage tank 303 is provided with a plurality of notches 305 in the direction of the steel ball 302, the outer side of the steel ball 302 fits with the recessed straight groove of the inner guide rail 1, the lubricating oil is stored in the oil storage tank 303, and the lubricating oil is continuously transported to the moving steel ball 302 through the notch 305, and the friction is effectively reduced through the cooperation between the steel ball 302 and the inner guide rail 1, thereby improving the durability and precision of the inner guide rail 1.

Specifically, the oil control device 2 includes: an upper cover 201; an insertion rod 202; an electromagnet 203; and a hose 204; the hose 204 vertically penetrates the upper cover 201, the insertion rod 202 extends into both sides of the upper cover 201, the end of the insertion rod 202 located inside the upper cover 201 can squeeze the hose 204 to produce deformation, the end of the insertion rod 202 located outside the upper cover 201 is magnetic, and the electromagnet 203 is fixedly arranged at the connection position between the insertion rod 202 and the upper cover 201. By controlling the depth of the insertion rod 202 to squeeze the hose 204, the cross-sectional area of the hose 204 can be changed, thereby achieving the effect of controlling the flow rate of lubricating oil, and the appropriate flow rate of lubricating oil can be adjusted according to actual production needs.

Specifically, the upper cover 201 is fixedly disposed on the upper side of the lower cover 301 , and the lower end of the hose 204 faces the oil storage tank 303 .

Specifically, the oil delivery device 4 includes: an oil storage chamber 401; a viewing window 402; an oil outlet 403; a rotating rod 404; a rope reel 405; a buoy 406; a slide 407; a traction rope 408; an end cover; and a turntable 410; the viewing window 402 is fixedly arranged on the upper side of the oil storage chamber 401, the oil outlet 403 is arranged on the lower side of the oil storage chamber 401, two buoys 406 are provided, and the two buoys 406 are slidably connected to the slide 407 opened inside the oil storage chamber 401, the rope reel 405 is rotatably arranged at the bottom of the oil storage chamber 401, the traction rope 408 is wound around the rope reel 405, and the traction rope 408 is connected to the buoy The buoy 406 is connected, the rotating rod 404 is fixedly provided on the upper side of the rope winding wheel 405, and the rotating disk 410 is provided on the upper side of the rotating rod 404. The rotating disk 410 is rotatably connected inside the window 402, and the end cover is provided on one side of the oil storage chamber 401. A torsion spring may be provided at the connection position between the rope winding wheel 405 and the oil storage chamber 401. When the buoy 406 is lowered, the rope winding wheel 405 may gradually rotate with the action of the torsion spring, and the rotating disk 410 may be driven to rotate by the rotation of the rope winding wheel 405. Scales and pointers may be engraved on the rotating disk 410 and the window 402. The oil level can be known by observing the rotation of the rotating disk 410. If the oil level is too small, refueling can be added to the oil storage chamber 401 through the end cover.

Specifically, the oil storage chamber 401 is fixedly disposed on the upper side of the upper cover 201 , and the oil outlet 403 is plugged into the interior of the hose 204 .

Specifically, the leakage prevention device includes: an oil collecting bin 501; a through hole 502; a power supply 503; a conductive sheet 504; a pad 505; a filler 506; a conductive port 507; an infrared generator 508; and an oil leakage hole 509; the through hole 502 is opened on the upper end surface of the oil collecting bin 501, the filler 506 is arranged at the bottom of the oil collecting bin 501, the upper end surface of the filler 506 is provided with a pad 505 slidably connected to the inner wall of the oil collecting bin 501, a plurality of oil leakage holes 509 are opened on the pad 505, the power supply 503 is fixedly provided on the upper end of the pad 505, the conductive sheets 504 are provided on both sides of the power supply 503, and the oil collecting bin 501 is provided with a conductive sheet 504. The conductive ports 507 are fixedly provided on both sides of the inner wall, and the filler 506 is made of a material that swells when exposed to oil. When the filler 506 is not expanded, the conductive sheet 504 and the conductive port 507 are not in contact with each other for conductivity; when the filler 506 is expanded, the conductive sheet 504 and the conductive port 507 are in contact with each other for conductivity. The infrared generator 508 is fixedly provided on the outside of the oil collecting bin 501, and the infrared generator 508 is electrically connected to the conductive port 507. The filler 506 can be made by adding oil-absorbing resin to rubber. After the inner guide rail 1 leaks oil, the lubricating oil soaks the filler 506, and the power supply 503 turns on the infrared generator through the conductive port 507 to generate an infrared signal.

Specifically, the sliding device 3 also includes a guide groove 306 and a guide groove 307. There are multiple guide grooves 306. The multiple guide grooves 306 are opened on the side of the lower cover 301 close to the inner guide rail 1. The multiple guide grooves 306 converge into the guide groove 307. The lower end of the guide groove 307 corresponds to the through hole 502. When the device leaks oil, the overflowed lubricating oil can directly flow into the oil collecting bin 501 and be collected through the guide groove, and will not overflow irregularly to cause damage to the workpiece.

Specifically, the electromagnet 203 is electrically connected to the conductive port 507. When energized, the electromagnet 203 can attract one end of the insertion rod 202 located outside the upper cover 201. After the insertion rod 202 is attracted, the end completely squeezes the hose 204 to block the inflow of lubricating oil, thereby blocking the leakage of lubricating oil from the source.

Specifically, it also includes: an alarm device;

Infrared receiver;

The alarm device is electrically connected to the infrared receiver, and when the infrared receiver receives the signal from the infrared generator, an alarm is issued.

Claims (8)

1. A self-lubricating hub-bearing unit, comprising:

An inner rail;

an oil control device;

a sliding device;

an oil delivery device;

A leakage preventing device;

The sliding device is in sliding connection with the inner guide rail, the oil control device is fixedly arranged on the upper side of the sliding device, lubricating oil is stored in the oil delivery device, the oil delivery device is arranged on the upper side of the oil control device, and the leakage-proof device is arranged on one side, close to the inner guide rail, of the lower end of the sliding device; the oil conveying device conveys lubricating oil required by sliding to the sliding device at a uniform flow rate through the adjustment of the oil control device, the leakage prevention device is electrically connected with the oil control device, and when the lubricating oil leaks, the leakage prevention device controls the oil control device to stop conveying the lubricating oil to the sliding device while absorbing the overflowed lubricating oil;

The oil control device comprises:

an upper cover;

A rod;

An electromagnet;

A hose;

The hose vertically penetrates through the upper cover, the inserted bars extend into two sides of the upper cover, the end parts of the inserted bars, which are positioned in the upper cover, can squeeze the hose to deform, the end parts of the inserted bars, which are positioned outside the upper cover, are provided with magnetism, and the electromagnet is fixedly arranged at the connection position of the inserted bars and the upper cover;

The leakage preventing device comprises:

an oil collection bin;

A through hole;

A power supply;

a conductive sheet;

A backing plate;

a filler;

a conductive opening;

An infrared generator;

oil leakage holes;

The through holes are formed in the upper end face of the oil collecting bin, the filler is arranged at the bottom of the oil collecting bin, a base plate which is in sliding connection with the inner wall of the oil collecting bin is arranged on the upper end face of the filler, a plurality of oil leakage holes are formed in the base plate, the power supply is fixedly arranged at the upper end of the base plate, the conducting plates are arranged at the two sides of the power supply, the conducting ports are fixedly arranged at the two sides of the inner wall of the oil collecting bin, the filler is made of materials which swell when the filler does not swell, and the conducting plates do not contact with the conducting ports for conducting electricity; when the filler expands, the conducting strip is in contact with the conducting port for conducting electricity, the infrared generator is fixedly arranged on the outer side of the oil collecting bin, and the infrared generator is electrically connected with the conducting port.

2. A self-lubricating hub-bearing unit according to claim 1, wherein the sliding means comprises:

A lower cover;

a steel ball;

An oil storage tank;

A guide groove;

A notch;

the upper end face of the lower cover is provided with the guide groove, the guide groove is in an annular arrangement, a plurality of steel balls are arranged in the guide groove, the steel balls are mutually attached, the middle position of the guide groove is provided with the oil storage groove for storing lubricating oil, the oil storage groove is provided with a plurality of notches towards the direction of the steel balls, and the outer side of the steel balls are attached to the straight groove with the concave inner guide rail.

3. A self-lubricating hub bearing unit according to claim 2, wherein said upper cover is fixedly provided on the upper side of said lower cover, and the lower end of said hose is faced to said oil reservoir.

4. A self-lubricating hub-bearing unit according to claim 3, wherein said oil delivery means comprises:

An oil storage chamber;

A window;

An oil outlet;

A rotating rod;

A rope winding wheel;

a buoy;

A chute;

A traction rope;

An end cap;

A turntable;

The window is fixed to be set up the upside of oil storage chamber, the oil-out sets up the downside in oil storage chamber, the buoy is equipped with two, two the buoy with offer the oil storage intracavity portion spout sliding connection, the bottom rotation of oil storage chamber is equipped with around the rope sheave, around having on the rope sheave haulage rope, haulage rope with the buoy is connected, around the fixed bull stick that is equipped with of upside of rope sheave, the upside of bull stick is equipped with the carousel, the carousel is in window inside rotation connection, the end cover is established one side of oil storage chamber.

5. The self-lubricating hub bearing unit according to claim 4, wherein said oil storage chamber is fixedly provided on an upper side of said upper cover, and said oil outlet is inserted into an interior of said hose.

6. The self-lubricating hub bearing unit according to claim 5, wherein the sliding device further comprises a plurality of diversion sub-grooves and a diversion total groove, the diversion sub-grooves are formed in a plurality of at least one side of the lower cover close to the inner guide rail, the diversion sub-grooves are converged in the diversion total groove, and the lower ends of the diversion total grooves correspond to the through holes.

7. The self-lubricating hub bearing unit of claim 6, wherein the electromagnet is electrically connected to the conductive port, and the electromagnet after being energized attracts the plunger to be located at an end of the outer side of the upper cover.

8. The self-lubricating hub-bearing unit of claim 7, further comprising:

an alarm device;

An infrared receiver;

the alarm device is electrically connected with the infrared receiver, and when the infrared receiver receives the signal from the infrared generator, an alarm is sent out.