CN219904126U - Rotatable linear drive actuator - Google Patents

Abstract

The utility model discloses a rotatable linear driving actuator, which relates to the technical field of automobile seat adjustment. According to the utility model, through the cooperation between the limiting block and the through groove, the speed reducer is convenient to install, and meanwhile, the displacement of the speed reducer in the front-back direction can be well limited, and the screw thread of the screw rod can be prevented from being clamped on the screw rod hole.

Description

Rotatable linear drive actuator

Technical Field

The utility model relates to the technical field of automobile seat adjustment, in particular to a rotatable linear driving actuator.

Background

In recent years, with the continuous improvement of the requirements of consumers on the comfort level of automobiles and the pursuit of larger and larger space in automobiles, the automobile seat adjusting motor is developed towards lighter and smaller directions, at present, some mounting brackets applied to automobiles are riveted or welded by plates, steel plates with higher strength are generally adopted, the seat motor brackets are connected with the motors through screws, so that the weight of the motors is increased, the cost is increased, a part of motor performance is wasted, some seat motor brackets are made of plastics, buckles are added on the lower end surfaces of the seat motor brackets made of plastics, a fixing plate penetrates through the buckles to fix the motors, and then the motors are connected with the seat motor brackets through screws, so that the seat motor brackets made of plastics are more complex and new parts are added, and the cost of the motors is increased.

In order to solve the above problems, in chinese utility model patent application No.: CN202110160265.8 discloses a mounting bracket and a mounting structure between the mounting bracket and a reduction gearbox, which is made of engineering plastics, the mounting bracket is provided with an inner hole for mounting the reduction gearbox, the radial periphery of the inner hole is a mounting bracket body, and two sides of the inner hole in the axial direction are open; the mounting bracket body is provided with a fan-shaped groove, the radial inner side of the fan-shaped groove is communicated with the inner hole in the radial direction, and two sides of the fan-shaped groove in the axial direction are open. Although the motor is not enough in space rotation angle and the screw is not enough in the position that skeleton space can reach, but this installing support and with the mounting structure between the reducing gear box, through the mode installation process of flange portion and buckle structure restriction reducing gear box back-and-forth displacement loaded down with trivial details, when the reducing gear box drives the screw and inclines from top to bottom, the setting of horizontal plane is adopted to the upper and lower end in screw hole, when the screw linear displacement, the screw thread card is on the port in screw hole easily, and it is inconvenient to use.

Therefore, it is necessary to provide a rotatable linear drive actuator to solve the above-mentioned problems.

Disclosure of Invention

(one) solving the technical problems

The utility model aims at: in order to solve the problems that the mounting process is complicated in a mode of limiting the front-back displacement of the reduction gearbox through the flange part and the buckle structure and the mounting structure between the mounting support and the reduction gearbox, when the reduction gearbox drives the screw rod to incline up and down, the upper end and the lower end of the screw rod hole are arranged in a horizontal plane, and when the screw rod linearly displaces, threads are easy to clamp on the port of the screw rod hole, and the use is inconvenient, the utility model provides a rotatable linear driving actuator.

(II) technical scheme

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a rotatable linear drive executor, includes the rotatable linear drive executor that is used for car seat to adjust, rotatable linear drive executor includes the installing support body, set up at the installation through-hole in installing support body middle part, set up the lead screw hole at installing support body left and right sides both ends, rotate the reduction gear of installing in the installation through-hole and install the lead screw nut drive mechanism in the reduction gear, lead screw both ends in the lead screw nut drive mechanism pass the lead screw hole at installing support body left and right sides both ends respectively, the input fixedly connected with of reduction gear is used for installing the mounting bracket of motor to be used for the input shaft of reduction gear and the output shaft fixed connection of motor, the preceding terminal surface upper end of installing support body extends towards the place ahead direction and has the stopper that is used for restricting reduction gear turned angle and back and forth displacement, the one end that the lead screw hole kept away from installing support body center sets up to the flaring port, the limit block runs through along the upper and lower direction and is located the upper end of reduction gear below extends upwards has the cooperation piece that is used for inserting the logical groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the cooperation between the limiting block and the through groove, the speed reducer is convenient to install, and meanwhile, the displacement of the speed reducer in the front-back direction can be well limited, and the screw thread of the screw rod can be prevented from being clamped on the screw rod hole.

2. According to the utility model, the outer expansion port is arranged, and when the linear driving actuator rotates to a limiting angle, the upper surface and the lower surface of the screw rod and the outer expansion port are in a parallel state, so that the condition that the screw thread is clamped at the end part of the screw rod hole can be avoided.

Further, the upper end surface of the mounting bracket body is provided with a first inclined surface inclined towards the lower left.

Further, a mounting groove which is communicated with the through groove and used for mounting the matching block is formed in the front side face of the limiting block.

Further, the lower end of the limiting block is arranged to be an arc surface consistent with the radian of the upper end of the mounting through hole.

Further, the upper surface and the lower surface of the external expansion port are second inclined planes, and the two second inclined planes are distributed in mirror symmetry with respect to the center of the mounting bracket body.

In a word, the utility model can ensure that the linear driving actuator can not be blocked during working and has better fluency.

Drawings

FIG. 1 is a schematic perspective view of the structure of the present utility model;

FIG. 2 is a schematic perspective view of a screw nut drive mechanism, motor and reducer in the structure of the present utility model;

FIG. 3 is a perspective view of a mounting bracket body according to the present utility model;

fig. 4 is a schematic plan sectional view of a mounting bracket body according to the present utility model.

Reference numerals: 1. a mounting bracket body; 2. a speed reducer; 3. a screw nut transmission mechanism; 4. a screw hole; 5. mounting through holes; 6. a first inclined surface; 7. a limiting block; 8. a through groove; 9. a mounting groove; 10. a cambered surface; 11. a mounting frame; 12. a motor; 13. a second inclined surface; 14. and a matching block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, a rotatable linear driving actuator includes a rotatable linear driving actuator for adjusting an automobile seat, the rotatable linear driving actuator includes a mounting bracket body 1, a mounting through hole 5 formed in the middle of the mounting bracket body 1, screw holes 4 formed at left and right ends of the mounting bracket body 1, a speed reducer 2 rotatably mounted in the mounting through hole 5, and a screw nut transmission mechanism 3 mounted in the speed reducer 2, two ends of a screw in the screw nut transmission mechanism 3 respectively pass through the screw holes 4 at left and right ends of the mounting bracket body 1, an input end of the speed reducer 2 is fixedly connected with a mounting frame 11 for mounting a motor 12, an input shaft of the speed reducer 2 is fixedly connected with an output shaft of the motor 12, and a specific working principle of the rotatable linear driving actuator and a mounting position in adjusting the automobile seat are referred to in chinese patent application No.: the mounting structure between the mounting bracket and the reduction gearbox disclosed in CN202110160265.8 is characterized in that a limiting block 7 for limiting the rotation angle and the front-back displacement of the speed reducer 2 is arranged at the upper end of the front end face of the mounting bracket body 1 in a extending way in the front direction, and one end of a screw rod hole 4, which is far away from the center of the mounting bracket body 1, is provided with an outward expansion port.

In this embodiment, when rotatable linear drive executor during operation, through setting up stopper 7, the displacement of restriction reduction gear 2 fore-and-aft direction that can be fine also can avoid the screw thread card of lead screw on the lead screw hole 4 simultaneously, through setting up outer shape port that expands, when the linear drive executor rotated to the restriction angle, the upper and lower face of lead screw and outer shape port that expands is close to parallel state, can avoid the condition of screw thread card at lead screw hole 4 tip, can avoid the screw thread of lead screw and lead screw hole 4 to produce the condition of blocking for car seat adjusts more smoothly.

Specifically, referring to fig. 1 and 3, the upper end surface of the mounting bracket body 1 is set to be a first inclined surface 6 inclined towards the lower left, so as to reduce the mounting space occupied by the mounting bracket body 1, and meanwhile, in order to facilitate the mounting of the mounting bracket body 1, a plurality of slots are formed in the first inclined surface 6, and a mounting plate corresponding to the slots can be inserted into the slots on the automobile seat frame, so that the positioning of the device is facilitated.

Specifically, as shown in fig. 1 and fig. 3, the through groove 8 is formed in the stopper 7 in a penetrating manner along the up-down direction, the matching block 14 for inserting the through groove 8 is extended upward from the upper end of the speed reducer 2 below the stopper 7, the through groove 8 and the stopper 7 are matched to facilitate the installation of the speed reducer 2, in order to further ensure that the matching block 14 cannot slide out from the installation groove 9, a threaded hole is formed in the matching block 14, and a bolt with a diameter smaller than the upper end surface of the matching block 14 is screwed into the threaded hole, so that the upper end surface of the bolt is slightly higher than the upper end surface of the matching block 14.

Specifically, as shown in fig. 1, fig. 3 and fig. 4, the front side surface of the limiting block 7 is provided with a mounting groove 9 which is communicated with the through groove 8 and is used for mounting the matching block 14, so that the width of the matching block 14 is consistent with the width of the through groove 8 in order to further prevent the speed reducer 2 from shaking in the front-back direction, and the front-back shaking of the speed reducer 2 is effectively avoided.

Specifically, referring to fig. 1 and fig. 3, the lower end of the limiting block 7 is set to be a cambered surface 10 consistent with the radian of the upper end of the mounting through hole 5, and interference with the speed reducer 2 can be avoided when the speed reducer 2 rotates by setting the cambered surface 10.

Specifically, as shown in fig. 4 of fig. 3, the upper surface and the lower surface of the flared port are second inclined planes 13, and the two second inclined planes 13 are distributed in mirror symmetry about the center of the mounting bracket body 1, so that the second inclined plane 13 below the left end flared port is parallel to the second inclined plane 13 above the right end flared port, and when the speed reducer 2 drives the screw rod to rotate to a limiting angle, the central axis of the screw rod is parallel to the second inclined plane 13.

Working principle: when the speed reducer 2 is installed, the matching block 14 is aligned with the installation groove 9, then the speed reducer 2 is inserted into the installation groove 9 along the installation through hole 5, so that the matching block 14 is inserted into the installation groove 9, and in order to further ensure that the matching block 14 cannot slide out of the installation groove 9, a threaded hole can be selectively formed in the matching block 14, and one bolt can be screwed in;

when the rotatable linear driving actuator works, the matching block 14 slides along the through groove 8, so that the speed reducer 2 is prevented from shaking along the front-back direction, meanwhile, two ends of the screw rod swing up and down at the screw rod hole 4, and by arranging the second inclined plane 13, when the screw rod swings to the limit position, the central axis of the screw rod is parallel to the second inclined plane 13.

The present utility model is not limited to the preferred embodiments, but the patent protection scope of the utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings are included in the scope of the utility model.

Claims (5)

1. The utility model provides a rotatable linear drive executor, includes the rotatable linear drive executor that is used for car seat to adjust, rotatable linear drive executor includes the installing support body, sets up at the installation through-hole in installing support body middle part, sets up the lead screw hole at both ends about the installing support body, rotates the reduction gear of installing in the installation through-hole and installs the lead screw nut drive mechanism in the reduction gear, lead screw both ends in the lead screw nut drive mechanism pass the lead screw hole at both ends about the installing support body respectively, the input fixedly connected with of reduction gear is used for installing the mounting bracket of motor to be used for the input shaft of reduction gear and the output shaft fixed connection of motor, its characterized in that: the front end face upper end of the mounting bracket body extends towards the front direction to form a limiting block used for limiting the rotation angle and the front-back displacement of the speed reducer, one end of the screw rod hole, which is far away from the center of the mounting bracket body, is arranged to be an outward-expanding port, the limiting block penetrates through the through groove along the up-down direction, and the upper end of the speed reducer, which is located below the limiting block, extends upwards to form a matching block used for being inserted into the through groove.

2. A rotatable linear drive actuator as set forth in claim 1 wherein: the upper end face of the mounting bracket body is provided with a first inclined surface inclined towards the lower left.

3. A rotatable linear drive actuator as set forth in claim 2 wherein: the front side of the limiting block is provided with a mounting groove which is communicated with the through groove and used for mounting the matching block.

4. A rotatable linear drive actuator according to claim 3, wherein: the lower extreme of stopper sets up to the cambered surface unanimous with installation through-hole upper end radian.

5. A rotatable linear drive actuator as set forth in claim 4 wherein: the upper surface and the lower surface of the outward expansion port are second inclined planes, and the two second inclined planes are distributed in mirror symmetry with respect to the center of the mounting bracket body.