A lead screw for a servo motor used to adjust the vehicle-mounted AR-HUD reflector

Abstract

The utility model discloses a lead screw of a servo motor for adjusting a vehicle-mounted AR‑HUD reflector, comprising a threaded portion, one end of the threaded portion is provided with an end portion, a lubrication component is installed inside the threaded portion and the end portion, the lubrication component comprises a mounting groove provided on an outer wall on one side of the end portion, a plurality of oil outlet holes distributed at equal distances are provided on a circumferential outer wall of the threaded portion, and the plurality of oil outlet holes are all connected with the inside of the mounting groove, a sealing cover is provided on an outer wall on one side of the end portion, a magnetic ring is provided on an outer wall on the other side of the sealing cover, an annular groove adapted to the magnetic ring is provided on an outer wall on one side of the end portion, a sponge column is slidably inserted in the inside of the mounting groove, and a liquid injection groove is provided in the middle of the sponge column. By arranging the lubrication component, the utility model can continuously lubricate the lead screw for a long time, ensure that its transmission process is convenient enough, and thus save the work of frequently adding lubricating oil.

Description

Technical Field

[0001] The utility model relates to the technical field of reflectors, in particular to a lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector. Background Art

[0002] In the vehicle-mounted AR-HUD system, the precise adjustment of the reflector is crucial to ensure the comfort and safety of the driver. The servo motor accurately controls the position and angle of the reflector through the lead screw to achieve accurate projection of the HUD display information. The high-precision positioning characteristics of the lead screw ensure the fine-tuning accuracy of the reflector, thereby ensuring the clarity and accuracy of the HUD display information.

[0003] After searching, the utility model with Chinese patent announcement number CN216589818U discloses a high-precision ultra-micro lead screw, which relates to the field of drone technology, including: a lead screw body, the length of the lead screw body is 10.92mm, and the lead screw is a vehicle-mounted AR-rod body, including an end portion, a threaded portion and a connecting portion, the threaded portion is located between the end portion and the connecting portion, and a positioning groove is opened on the connecting portion.

[0004] As mentioned above, the screw is set in an integrated manner, and the lubrication effect is generally achieved by applying lubricating oil. The lubricating oil cannot be replenished. Therefore, as the use time increases, the lubrication effect will gradually decrease, which will further hinder the transmission process. The cycle of adding lubricating oil is short, and there is room for improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector, comprising a threaded portion, characterized in that a terminal head is provided at one end of the threaded portion, a lubrication component is installed inside the threaded portion and the terminal head, the lubrication component comprises a mounting groove provided on an outer wall on one side of the terminal head, a plurality of oil outlet holes equidistantly distributed are provided on a circular outer wall of the threaded portion, and the plurality of oil outlet holes are all connected to the interior of the mounting groove, a sealing cover is provided on the outer wall on one side of the terminal head, a magnetic ring is provided on the outer wall on the other side of the sealing cover, and an annular groove adapted to the magnetic ring is provided on the outer wall on one side of the terminal head.

[0007] As a further preferred embodiment of the technical solution, a sponge column is slidably inserted into the installation groove, and a liquid injection groove is opened in the middle of the sponge column.

[0008] The lead screw can be continuously lubricated for a long time to ensure that its transmission process is convenient enough, thereby eliminating the need to frequently add lubricating oil. The lubricating oil is injected into the liquid injection groove, and then the lubricating oil is absorbed by the sponge column. Then the magnetic ring of the cover is inserted into the annular groove corresponding to the end head. Under the action of magnetic force, the cover can ensure that the installation groove is closed. When the device is working, the lead screw is driven to rotate. Under the action of centrifugal force, part of the lubricating oil will flow out of the oil hole, ensuring that the lubricating oil is always distributed on the outer wall of the threaded part. When in a stationary state, the lubricating oil can be prevented from easily flowing to the outside under the suction of the sponge column.

[0009] As a further preferred embodiment of the present technical solution, a rubber pad is provided on an outer wall of one side of the sealing cover close to the end portion, and the rubber pad can seal the installation groove.

[0010] As a further preferred embodiment of the present technical solution, a moving component is installed at the other end of the threaded part, a slot is provided on the outer wall of one side of the moving component, a connecting part is slidably inserted inside the slot, a plurality of equally spaced clips are provided on the circumferential outer wall of the connecting part, and the plurality of clips are also inserted inside the slot.

[0011] As a further preferred embodiment of the present technical solution, one end of the threaded portion is threadedly connected with a plurality of bolts, and the plurality of bolts can be inserted into the interior of the connecting portion.

[0012] If you need to disassemble the lead screw, you only need to turn the bolt to disengage it from the connecting part and the threaded part. At this time, you only need to push the connecting part into the slot. The overall length of the lead screw will be reduced, and the disassembly of the lead screw will be more convenient. Under the action of the clamping strip, the connecting part can be extended and retracted freely while also being able to transmit normally.

[0013] As a further preferred embodiment of the present technical solution, the inner walls of the tops of the plurality of bolts are provided with anti-slip grooves.

[0014] As a further preferred embodiment of the present technical solution, the threaded portion, the end portion and the connecting portion are all made of stainless steel.

[0015] As a further preferred embodiment of the technical solution, a positioning ring with a length of more than 7 mm is arranged outside the connecting portion, and a plurality of glue pouring grooves distributed at equal distances are opened on the circumferential outer wall of the positioning ring.

[0016] The utility model provides a lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector, which has the following beneficial effects:

[0017] (1) The utility model can continuously lubricate the lead screw for a long time by setting a lubrication component, ensuring that its transmission process is convenient enough, thereby eliminating the need to frequently add lubricating oil. The lubricating oil is injected into the liquid injection groove, and then the lubricating oil is absorbed by the sponge column. Then, the magnetic ring of the cover is inserted into the annular groove corresponding to the end head. Under the action of magnetic force, the cover can close the installation groove. When the device is working, the lead screw is driven to rotate. Under the action of centrifugal force, part of the lubricating oil will flow out of the oil hole, ensuring that the lubricating oil is always distributed on the outer wall of the threaded part. When in a stationary state, the lubricating oil can be prevented from easily flowing to the outside under the suction of the sponge column.

[0018] (2) The utility model provides a moving assembly. When the lead screw needs to be disassembled, it is only necessary to rotate the bolt to disengage the connecting portion and the threaded portion. At this time, it is only necessary to push the connecting portion into the slot. The overall length of the lead screw is also reduced, and the disassembly of the lead screw is also more convenient. Under the action of the clamping strip, the connecting portion can be freely extended and retracted while being able to transmit normally.

[0019] (3) The utility model sets a positioning ring and designs the positioning ring and the groove for glue injection at the same section, taking into account the length of the positioning ring and improving the positioning accuracy. The utility model does not use the knurling process, but designs four grooves for glue injection, so that the glue injection groove does not affect the positioning function and also ensures the requirements of the glue injection connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a partial enlarged structural schematic diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of the enlarged structure of the magnetic ring and rubber pad of the utility model;

[0023] Figure 4 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0024] In the figure: 1, threaded part; 2, end part; 3, connecting part; 4, lubrication assembly; 5, moving assembly; 6, positioning ring; 401, oil outlet hole; 402, mounting groove; 403, sponge column; 404, liquid injection groove; 405, sealing cover; 406, magnetic ring; 407, rubber pad; 501, slot; 502, bolt; 503, clamping strip. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] The utility model provides a technical solution: Figure 1 , Figure 2 and Figure 3 As shown, in the present embodiment, a lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector comprises a threaded portion 1, characterized in that: a terminal head 2 is provided at one end of the threaded portion 1, a lubrication assembly 4 is installed inside the threaded portion 1 and the terminal head 2, the lubrication assembly 4 comprises a mounting groove 402 provided on an outer wall on one side of the terminal head 2, a plurality of oil outlet holes 401 distributed at equal distances are provided on a circumferential outer wall of the threaded portion 1, and the plurality of oil outlet holes 401 are all connected to the inside of the mounting groove 402, a sealing cover 405 is provided on the outer wall on one side of the terminal head 2, a magnetic ring 406 is provided on the outer wall on the other side of the sealing cover 405, and an annular groove adapted to the magnetic ring 406 is provided on the outer wall on one side of the terminal head 2.

[0027] A sponge column 403 is slidably inserted inside the mounting groove 402, and a liquid injection groove 404 is opened in the middle of the sponge column 403. One end of the syringe is inserted into the liquid injection groove 404 to ensure that the lubricating oil can be distributed in the sponge column 403 more quickly, which is conducive to increasing the oil injection efficiency.

[0028] The lubricating oil is injected into the injection groove 404, and then the lubricating oil is absorbed by the sponge column 403. Then, the magnetic ring 406 of the cover 405 is inserted into the annular groove corresponding to the end head 2. Under the action of magnetic force, the cover 405 can close the installation groove 402. When the device is working, the lead screw is driven to rotate. Under the action of centrifugal force, part of the lubricating oil will flow out of the oil hole 401, ensuring that the lubricating oil is always distributed on the outer wall of the threaded part 1. When in a stationary state, the lubricating oil can be prevented from easily flowing to the outside under the suction of the sponge column 403.

[0029] like Figure 3 As shown, a rubber pad 407 is provided on the outer wall of one side of the cover 405 close to the end portion 2. The rubber pad 407 can seal the installation groove 402, so that the cover 405 and the end portion 2 fit better, effectively increasing the sealing between the two.

[0030] like Figure 1 and Figure 4 As shown, a moving component 5 is installed at the other end of the threaded part 1, and a slot 501 is opened on the outer wall of one side of the moving component 5. A connecting part 3 is slidably inserted into the slot 501. A plurality of equally spaced clips 503 are arranged on the circumferential outer wall of the connecting part 3, and the plurality of clips 503 are also inserted into the slot 501.

[0031] One end of the threaded portion 1 is threadedly connected with a plurality of bolts 502 , and the plurality of bolts 502 can be inserted into the interior of the connecting portion 3 .

[0032] If the lead screw needs to be removed, it is only necessary to rotate the bolt 502 to disengage it from the connecting part 3 and the threaded part 1. At this time, it is only necessary to push the connecting part 3 into the slot 501. The overall length of the lead screw will also be reduced, and the removal of the lead screw will be more convenient. Under the action of the clamping strip 503, the connecting part 3 can be freely extended and retracted while being able to transmit normally.

[0033] like Figure 4 As shown, the inner walls at the tops of the plurality of bolts 502 are all provided with anti-slip grooves, which can prevent the state of the bolts 502 from being more stable.

[0034] like Figure 1 As shown, the threaded portion 1, the end portion 2 and the connecting portion 3 are all made of stainless steel, which has good corrosion resistance and aesthetics, ensuring a longer service life of the lead screw.

[0035] like Figure 1 As shown, a positioning ring 6 with a length of more than 7 mm is provided on the outside of the connecting part 3, which is used to assemble the motor rotor on the lead screw and make the inner diameter of the rotor and the outer diameter of the positioning ring match. The outer wall of the circumference of the positioning ring 6 is provided with multiple glue pouring grooves distributed at equal distances, and glue can be poured into the grooves to increase the friction between the positioning ring 6 and the rotor.

[0036] The utility model provides a lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector, and the specific working principle is as follows:

[0037] First, insert one end of the syringe into the injection groove 404 to ensure that the lubricating oil can be distributed in the sponge column 403 more quickly, which is conducive to increasing the oil injection efficiency. The lubricating oil is injected into the injection groove 404, and then the lubricating oil is absorbed by the sponge column 403. Then, the magnetic ring 406 of the cover 405 is inserted into the annular groove corresponding to the end head 2. Under the action of magnetic force, the cover 405 can ensure that the installation groove 402 is closed. When the device is working, the lead screw is driven to rotate, and under the action of centrifugal force, part of the lubricating oil will flow out of the oil hole 40 1, ensure that the lubricating oil is always distributed on the outer wall of the threaded part 1, and when in a stationary state, the lubricating oil can be prevented from easily flowing to the outside under the suction of the sponge column 403. If it is necessary to remove the lead screw, it is only necessary to rotate the bolt 502 to separate it from the connecting part 3 and the threaded part 1. At this time, it is only necessary to push the connecting part 3 into the slot 501. At this time, the overall length of the lead screw will also be reduced, and the removal of the lead screw will also be more convenient. Under the action of the clamping strip 503, it can ensure that the connecting part 3 can be freely extended and retracted while also being able to transmit normally.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector, comprising a threaded portion (1), characterized in that: A terminal head (2) is provided at one end of the threaded portion (1), and a lubricating assembly (4) is installed inside the threaded portion (1) and the terminal head (2), the lubricating assembly (4) comprising a mounting groove (402) provided on an outer wall of one side of the terminal head (2), a plurality of oil outlet holes (401) distributed at equal distances are provided on the circumferential outer wall of the threaded portion (1), and the plurality of oil outlet holes (401) are all connected to the inside of the mounting groove (402), a cover (405) is provided on an outer wall of one side of the terminal head (2), a magnetic ring (406) is provided on an outer wall of the other side of the cover (405), and an annular groove adapted to the magnetic ring (406) is provided on an outer wall of one side of the terminal head (2).

2. The lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector according to claim 1, characterized in that: A sponge column (403) is slidably inserted into the interior of the installation groove (402), and a liquid injection groove (404) is provided in the middle of the sponge column (403).

3. The lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector according to claim 1, characterized in that: A rubber pad (407) is provided on the outer wall of one side of the sealing cover (405) close to the end portion (2), and the rubber pad (407) is capable of sealing the installation groove (402).

4. The lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector according to claim 1, characterized in that: A moving component (5) is installed at the other end of the threaded portion (1); a slot (501) is provided on an outer wall of one side of the moving component (5); a connecting portion (3) is slidably inserted into the slot (501); a plurality of equally spaced clamping strips (503) are provided on the circumferential outer wall of the connecting portion (3); and the plurality of clamping strips (503) are also inserted into the slot (501).

5. The lead screw of the servo motor for adjusting the vehicle-mounted AR-HUD reflector according to claim 4, characterized in that: One end of the threaded portion (1) is threadedly connected to a plurality of bolts (502), and the plurality of bolts (502) can all be inserted into the interior of the connecting portion (3).

6. The lead screw of the servo motor for adjusting the vehicle-mounted AR-HUD reflector according to claim 5, characterized in that: The inner walls of the tops of the plurality of bolts (502) are all provided with anti-slip grooves.

7. The lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector according to claim 1, characterized in that: The threaded portion (1), the end portion (2) and the connecting portion (3) are all made of stainless steel.

8. The lead screw of a servo motor for adjusting a vehicle-mounted AR-HUD reflector according to claim 4, characterized in that: A positioning ring (6) with a length of more than 7 mm is arranged outside the connecting portion (3), and a plurality of equally spaced glue injection grooves are provided on the circumferential outer wall of the positioning ring (6).

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