CN115848238A - Electric sliding rail based on planetary gear transmission - Google Patents
Electric sliding rail based on planetary gear transmission Download PDFInfo
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- CN115848238A CN115848238A CN202111112208.9A CN202111112208A CN115848238A CN 115848238 A CN115848238 A CN 115848238A CN 202111112208 A CN202111112208 A CN 202111112208A CN 115848238 A CN115848238 A CN 115848238A
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- slide rail
- planetary gear
- support
- motor
- transfer gear
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Abstract
The invention discloses an electric slide rail based on planetary gear transmission, which comprises two groups of upper slide rails and lower slide rails corresponding to the upper slide rails, wherein the upper slide rails are assembled on the corresponding lower slide rails in a front-back sliding manner through screw rod nut mechanisms, transfer gear boxes are respectively arranged at the upper parts of the upper slide rails, a longitudinal transmission shaft is connected between each transfer gear box and each screw rod nut mechanism, a support is fixedly arranged between the two groups of upper slide rails, a motor is arranged on each support, and a planetary gear mechanism is arranged between each motor and each transfer gear box and used for reducing the input rotating speed of each transfer gear box. The invention has the beneficial effects that: the sliding rail system has the technical advantages of low running noise, small vibration, good smoothness and the like.
Description
Technical Field
The invention belongs to the technical field of vehicle sliding rails, and particularly relates to an electric sliding rail based on planetary gear transmission.
Background
The bottom of car seat is provided with slide rail set spare, and driver and crew can adjust the position of seat according to the needs of self to obtain more comfortable position of sitting. The slide rail assemblies are generally two groups, are symmetrically arranged on the floor of the vehicle body, and each group of slide rails consists of an upper slide rail and a lower slide rail, wherein the upper slide rail is arranged below a seat basin of the seat, the lower slide rail is arranged on the floor of the vehicle body, and the upper slide rail slides back and forth in the lower slide rail to realize the front and back adjustment of the seat.
In the early technology of the seat slide rail, after the slide rail is assembled on the vehicle, the driving motor is located in the space between two sets of slide rails, and directly provides driving force to the gear box inside the slide rail through a horizontal shaft, thereby controlling the upper slide rail to slide on the lower slide rail. Because driving motor directly carries drive power to the gear box from the slide rail is inboard, after the car seat assembly, upper and lower slide rail assembly all exposes on the vehicle bottom plate, to vehicles that have longer slide rail stroke such as commercial car, the slide rail exposes on the automobile body floor, has occupied passenger's activity space in the car to the interior trim of very influence vehicle has seriously reduced the senior sense of vehicle.
In order to solve the technical problem that the sliding rail is exposed on the floor of the vehicle body, patent document No. CN212313336U discloses a sliding rail assembly of a vehicle seat, which can be installed in a hidden manner.
In prior art, the power steering mechanism who converts horizontal drive power into vertical drive power is gear box, and when the output speed of driving motor directly transmitted to gear box inside with 1.
Disclosure of Invention
In view of this, the present invention provides an electric slide rail based on planetary gear transmission to solve the technical problem of high adjusting noise pointed out in the background art.
In order to realize the purpose, the technical scheme of the invention is as follows:
the utility model provides an electronic slide rail based on planetary gear transmission, including two sets of last slide rails, and with the corresponding lower slide rail of last slide rail, go up the slide rail and all assemble on the lower slide rail that corresponds through screw-nut mechanism with sliding around, go up slide rail upper portion and all install the transfer gear box, this transfer gear box with be connected with longitudinal drive shaft between the screw-nut mechanism, its key lies in: two sets of fixed mounting has the support between the last slide rail, install the motor on the support, be equipped with planetary gear mechanism between motor and the transfer gear box for reduce the input rotational speed of transfer gear box.
By adopting the structure, the input rotating speed of the transfer gear box is reduced by arranging the planetary gear mechanism, so that the gears in the transfer gear box, the screw rod nut mechanism and other related components have lower rotating speeds, the transmission noise and vibration of the whole sliding rail system are favorably reduced, and the comfort is better.
Preferably, the method comprises the following steps: the support is provided with two sets of planetary gear mechanisms, the motor is positioned between the two sets of planetary gear mechanisms, the motor is a double-output motor, a first horizontal shaft is connected between an output shaft of the motor and the planetary gear mechanisms, and a second horizontal shaft is connected between the planetary gear mechanisms and the transfer gear box. The structure is adopted, so that the assembly is convenient.
Preferably, the method comprises the following steps: the first horizontal shaft is connected to a sun gear of the planetary gear mechanism, and the second horizontal shaft is connected to a planet carrier or an outer gear ring of the planetary gear mechanism. By adopting the structure, the speed reduction effect can be achieved.
Preferably, the method comprises the following steps: the both ends of support are equipped with the installation department, it is formed with the supporting platform of undercut to go up slide rail upper portion, and installation department fixed mounting is on supporting platform, the inside assembly cavity that is formed with of installation department, transfer gear box fixed mounting is in the assembly cavity. By adopting the structure, the structure has the advantages of convenience in assembly and good reliability.
Preferably, the method comprises the following steps: the side wall of the assembly chamber is provided with a thickened part protruding inwards, and strip-shaped holes extending along the height direction of the thickened part are distributed in the thickened part. By adopting the structure, a sound insulation layer can be formed, and the running noise of the slide rail system at the position of the transfer gear box is reduced.
Preferably, the method comprises the following steps: the support is provided with assembling grooves corresponding to the motor and the planetary gear mechanism, and protruding blocks are distributed at the bottom of the assembling grooves in an array mode and are of conical structures. By adopting the structure, the running noise of the slide rail system at the positions of the motor and the planetary gear mechanism can be reduced.
Preferably, the method comprises the following steps: the support is of a strip-shaped structure, and criss-cross reinforcing ribs are uniformly distributed on the upper side and the lower side of the support. By adopting the structure, the structural strength of the support can be ensured, the sliding rail system runs more stably, and the vibration is smaller.
Preferably, the method comprises the following steps: still include the assembly parts that the cross-section is "L" type, the assembly parts has horizontal plate and vertical board, wherein, the horizontal plate is located the installation department downside and welds on supporting platform, vertical board is located the installation department outside, vertical board, installation department and the transfer gear box attaches as an organic wholely through the screw lock. The transfer gear box comprises a left box cover and a right box cover, wherein the left box cover and the right box cover are both provided with support lugs, and the screws are screwed on the support lugs. By adopting the structure, the installation is more convenient.
Preferably, the method comprises the following steps: and a first bevel gear and a second bevel gear which are meshed with each other are arranged inside the left box cover and the right box cover. By adopting the structure, the transmission smoothness is good, and the noise is low.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up planetary gear mechanism, reduced the input rotational speed of transfer gear box to make inside gear of transfer gear box and relevant parts such as lead screw nut mechanism have lower rotational speed, the slide rail system has technical advantages such as the running noise is low, the vibration is little, the ride comfort is good, is applicable to middle and high end car seat.
2. The input rotating speed of the transfer gear box is reduced, so that the gear box can be made of plastic, and the cost is lower.
3. The support structure has reasonable design, and can further improve the running noise of the electric slide rail.
Drawings
Fig. 1 is a schematic structural view of an electric slide rail (the lower slide rail is only partially shown);
fig. 2 is a partially exploded schematic view (left half of fig. 1) of the electric slide rail;
FIG. 3 is a schematic view of the stent structure;
fig. 4 is an exploded view of the transfer gearbox.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 and 2, an electric slide rail based on planetary gear transmission includes two sets of upper slide rails 2 and two sets of lower slide rails 1, the upper slide rails 2 are slidably mounted on the corresponding lower slide rails 1, a bracket 5 is fixedly mounted between the two sets of upper slide rails 2, the bracket 5 is provided with a set of motor 6 and two sets of transfer gear boxes 4, the motor 6 is located in the middle of the bracket 5, the two sets of transfer gear boxes 4 are respectively mounted at two ends of the bracket 5, and planetary gear mechanisms 7 are respectively disposed between the transfer gear boxes 4 and the motor 6, in this embodiment, the motor 6 is a dual output motor, a first horizontal shaft 8a is connected between an output shaft of the motor and the planetary gear mechanism 7, and a second horizontal shaft 8b is connected between the planetary gear mechanism 7 and the transfer gear boxes 4.
Go up and be equipped with lead screw nut mechanism 3 between slide rail 2 and the lower slide rail 1, lead screw nut mechanism 3 and transfer gear box 4 are through 11 power links up of longitudinal drive axle, and the vertical setting of longitudinal drive axle 11 is in last slide rail 2, and after the electronic slide rail assembly was accomplished, transfer gear box 4 just in time was located the upper portion of last slide rail 2.
The power transmission path of the electric slide rail is as follows: the motor 6 → the first horizontal shaft 8a → the planetary gear mechanism 7 → the second horizontal shaft 8b → the transfer gear box 4 → the longitudinal transmission shaft 11 → the lead screw and nut mechanism 3, and the lead screw and nut mechanism 3 works to drive the upper slide rail 2 to slide on the lower slide rail 1.
As shown in fig. 2, a lead screw and nut mechanism 3 applied to a slide rail system is a mature technology in the prior art, and this embodiment only briefly describes the lead screw and nut mechanism 3, the lead screw 3b is fixedly installed in a lower slide rail 1, the lower gear box 3a is fixed at the lower part of an upper slide rail 2 and sleeved on the lead screw 3b, a worm wheel and a worm which are mutually engaged are arranged inside the lower gear box 3a, the worm is connected with a longitudinal transmission shaft 11, and the worm wheel is sleeved on the lead screw 3b in a threaded manner, based on this structure, the longitudinal transmission shaft 11 rotates to drive the lower gear box 3a to axially move along the lead screw 3b, so as to drive the upper slide rail 2 to slide on the lower slide rail 1.
In the embodiment, the first horizontal shaft 8a is connected to the sun gear of the planetary gear mechanism 7, and the second horizontal shaft 8b is connected to the planet carrier or the external gear ring of the planetary gear mechanism 7, in the motion path of the electric slide rail, the planetary gear mechanism 7 can reduce the input rotation speed of the relay gear box 4, so that the gears inside the relay gear box 4 and the related components such as the screw-nut mechanism 3 have lower rotation speeds, thereby reducing the transmission noise and vibration of the whole electric slide rail, and ensuring better comfort.
Referring to fig. 4, the transfer gearbox 4 includes a left box cover 4a and a right box cover 4b, a first bevel gear 4d and a second bevel gear 4e engaged with each other are disposed inside the left box cover 4a and the right box cover 4b, and the bevel gear transmission has the advantages of good transmission smoothness and low noise.
As shown in fig. 3 and 4, in order to facilitate the assembly of the transfer gear box 4, the two ends of the bracket 5 are provided with mounting portions 5a, the upper portion of the upper slide rail 2 is formed with a support platform 2a recessed downward, the mounting portions 5a are fixedly mounted on the support platform 2a, an assembly cavity 5b is formed inside the mounting portions 5a, and the transfer gear box 4 is fixedly mounted in the assembly cavity 5 b.
Further, the mounting portion 5a is fixed on the supporting platform 2a through a mounting member 9, the mounting member 9 has a horizontal plate 9a and a vertical plate 9b, the horizontal plate 9a is located at the lower side of the mounting portion 5a and is welded on the supporting platform 2a, the vertical plate 9b is located at the outer side of the mounting portion 5a, the left box cover 4a and the right box cover 4b of the transfer gearbox 4 are both provided with a support lug 4c, and the vertical plate 9b, the mounting portion 5a and the support lug 4c are locked and attached into a whole through a screw 10.
As shown in fig. 3, a thickened portion 5c protruding inward is disposed on a side wall of the assembly chamber 5b, strip-shaped holes 5d extending along a height direction of the thickened portion 5c are distributed on the thickened portion 5c, and the strip-shaped holes 5d can form a sound insulation layer, so that the running noise of the sliding rail system at the position of the transfer gear box 4 is reduced.
The bracket 5 is provided with an assembly groove 5e corresponding to the position of the motor 6 and the planetary gear mechanism 7, the bottom array of the assembly groove 5e is provided with a lug 5f, and the lug 5f is in a conical structure. With such a design, the operating noise of the motor 6 and the planetary gear mechanism 7 can be reduced.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides an electronic slide rail based on planetary gear transmission, including two sets of last slide rail (2), and with go up slide rail (1) corresponding down of slide rail (2), go up slide rail (2) and all can assemble on corresponding lower slide rail (1) through screw-nut mechanism (3) with sliding around, go up slide rail (2) upper portion and all install transfer gear case (4), this transfer gear case (4) with be connected with vertical transmission shaft (11), its characterized in that between screw-nut mechanism (3): two sets of fixed mounting has support (5) between last slide rail (2), install motor (6) on support (5), be equipped with planetary gear mechanism (7) between motor (6) and transfer gear box (4) for reduce the input rotational speed of transfer gear box (4).
2. The planetary gear drive-based electric slide rail of claim 1, wherein: two sets of planetary gear mechanism (7) are installed on support (5), motor (6) are located between two sets of planetary gear mechanism (7), and motor (6) are two output motors, are connected with first horizontal axis (8 a) between its output shaft and planetary gear mechanism (7), are connected with second horizontal axis (8 b) between planetary gear mechanism (7) and transfer gear box (4).
3. The planetary gear drive-based electric slide rail of claim 2, wherein: the first horizontal shaft (8 a) is connected to a sun gear of the planetary gear mechanism (7), and the second horizontal shaft (8 b) is connected to a planet carrier or an external gear ring of the planetary gear mechanism (7).
4. The planetary gear drive-based electric slide rail of claim 1, wherein: the both ends of support (5) are equipped with installation department (5 a), go up slide rail (2) upper portion and be formed with supporting platform (2 a) of undercut, installation department (5 a) fixed mounting is on supporting platform (2 a), installation department (5 a) inside is formed with assembly cavity (5 b), transfer gear box (4) fixed mounting is in assembly cavity (5 b).
5. The planetary gear drive-based electric slide rail of claim 4, wherein: the side wall of the assembly chamber (5 b) is provided with a thickened part (5 c) protruding inwards, and strip-shaped holes (5 d) extending along the height direction of the thickened part (5 c) are distributed on the thickened part.
6. The planetary gear drive-based electric slide rail of claim 1, wherein: the support (5) is provided with assembling grooves (5 e) corresponding to the positions of the motor (6) and the planetary gear mechanism (7), lugs (5 f) are distributed at the bottom of the assembling grooves (5 e) in an array mode, and the lugs (5 f) are of a conical structure.
7. The planetary gear drive-based electric slide rail of claim 1, wherein: the support (5) is of a strip-shaped structure, and criss-cross reinforcing ribs (5 g) are uniformly distributed on the upper side and the lower side of the support.
8. The planetary gear drive-based electric slide rail of claim 4, wherein: still including assembling part (9) that the cross-section is "L" type, assembling part (9) have horizontal plate (9 a) and vertical board (9 b), wherein, horizontal plate (9 a) are located installation department (5 a) downside and weld on supporting platform (2 a), vertical board (9 b) are located installation department (5 a) outside, vertical board (9 b), installation department (5 a) and transfer gear box (4) are attached as an organic whole through screw (10) lock.
9. The planetary gear drive-based electric slide rail of claim 8, wherein: the transfer gear box (4) comprises a left box cover (4 a) and a right box cover (4 b), support lugs (4 c) are arranged on the left box cover (4 a) and the right box cover (4 b), and screws (10) are screwed on the support lugs (4 c).
10. The planetary gear drive-based electric slide rail of claim 9, wherein: and a first bevel gear (4 d) and a second bevel gear (4 e) which are meshed with each other are arranged inside the left box cover (4 a) and the right box cover (4 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111112208.9A CN115848238A (en) | 2021-09-23 | 2021-09-23 | Electric sliding rail based on planetary gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111112208.9A CN115848238A (en) | 2021-09-23 | 2021-09-23 | Electric sliding rail based on planetary gear transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115848238A true CN115848238A (en) | 2023-03-28 |
Family
ID=85652883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111112208.9A Pending CN115848238A (en) | 2021-09-23 | 2021-09-23 | Electric sliding rail based on planetary gear transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115848238A (en) |
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2021
- 2021-09-23 CN CN202111112208.9A patent/CN115848238A/en active Pending
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