CN213154997U - Single motor driver device - Google Patents

Abstract

The utility model discloses a single motor driver device, including bed body, shank pivot, shank support axle, back support axle and back pivot side by side with the border swing joint of bed body, shank support axle and back support epaxial difference card income rotatory epitheca, the top installation of epitheca is drawn the lid, and the bottom forms the casing with the fixed concatenation of inferior valve. This single motor driver device, the motor drives gear through the turbine worm and drives in the same direction as time or anticlockwise rotation, promote the slider and advance and retreat, when photoelectric switch senses the hole on the induction ring, can calculate the distance that the slider gos forward or retreat through the number that senses the hole, can save the drive ratio of calculating motor and gear, rely on the rolling friction that produces between the hook of gyro wheel on the slider and roller bearing realization slider and shank pivot and back pivot, thereby it is little to realize frictional resistance, high transmission efficiency, positioning accuracy height advantage.

Description

Single motor driver device

Technical Field

The utility model relates to a single motor driver technical field specifically is a single motor driver device.

Background

The present single motor driver device drives the bed body to move up and down by the sliding friction generated between the sliding block of the motor driver and the hook on the rotating shaft of the bed body, the principle is that when an object slides on the surface of another object or has a sliding trend, the relative sliding phenomenon between the sliding block and the sliding block is blocked by the hook generated on the contact surface of the two objects, the friction force is simple in structure, but the defect is obvious, the friction resistance is large, the transmission efficiency is low, the sliding block is mostly made of plastic materials, the rotating shaft hook of the bed is made of metal materials, the sliding friction between the hook and the sliding block can abrade the sliding block to form a groove after the bed is used for a period of time, and the groove can be larger and larger along with the increase of time, and the service.

The Hall signal form of the existing motor driver is mostly a Hall motor form, the Hall motor form mainly works as that the original motor rotates for one circle, the Hall signal which can influence the Hall motor form is sent, the moving stroke of the sliding block is indirectly obtained by calculating the transmission ratio of a worm and a gear of the motor (the gear and the screw rod are in a fixed state) and then calculating the matching screw pitch of the screw rod and the sliding block, and the defect is that when the gear is damaged and fixed, the Hall motor continues to rotate to calculate the Hall signal, so that an error is generated, the precision is low, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single motor driver device, it is in the same direction as time or anticlockwise rotation to have the motor to drive gear through the turbine worm, promote the slider and advance and retreat, when photoelectric switch senses the hole on the induction ring, can calculate the distance that the slider advances or retreats through the number of sensing the hole, can save the drive ratio of calculating motor and gear, rely on the rolling friction that produces between the hook of gyro wheel on the slider and realization slider of shank pivot and back pivot with the roller bearing, thereby it is little to realize frictional resistance, high transmission efficiency, the advantage of the high advantage of positioning accuracy, the problem among the prior art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a single-motor driver device comprises a bed body, a leg rotating shaft, a leg supporting shaft, a back supporting shaft and a back rotating shaft, wherein the leg rotating shaft, the leg supporting shaft, the back supporting shaft and the back rotating shaft are movably connected with the edge of the bed body side by side;

the lower shell is provided with a control adapter plate and an insertion bearing, a screw rod penetrates through the bearing, one end of the screw rod is fixedly provided with an induction ring and a gear, the other end of the screw rod is connected with a sliding block through threads, and the sliding block is provided with a rolling shaft and a roller;

the control adapter plate is provided with a photoelectric switch, and the induction ring is inserted into the photoelectric switch;

the gear is engaged with a motor shaft, one end of the motor shaft extends to the outside of the shell to be connected with the motor, and the motor is electrically connected with the switch board through guiding.

Preferably, the sliding block is in rolling friction with hooks of the leg rotating shaft and the back rotating shaft.

Preferably, the sensing ring is provided with holes at equal intervals, the holes on the sensing ring are positioned in the photoelectric switch, and the distance for the sliding block to advance or retreat can be calculated according to the number of the sensing holes.

Preferably, a worm gear is formed between the gear and the motor shaft.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this single motor driver device, the motor drives the gear through the turbine worm and drives in the same direction as time or anticlockwise rotation, promote the slider and advance and retreat, when photoelectric switch senses the hole on the induction ring, can calculate the distance that the slider gos forward or retreat through the number that senses the hole, can save the drive ratio of calculating motor and gear, thereby prevent that the gear from damaging when not rotating hall motor and continuing to rotate and calculate hall signal mistake production, rely on gyro wheel and the roller bearing on the slider to realize the rolling friction that produces between the hook of slider and shank pivot and back pivot, thereby it is little to realize frictional resistance, high transmission efficiency, positioning accuracy advantage such as high.

Drawings

FIG. 1 is an overall perspective view of the present invention;

fig. 2 is a partial structure diagram of the present invention.

In the figure: 1. a bed body; 2. a leg rotating shaft; 3. a leg support shaft; 4. a back support shaft; 5. a back rotating shaft; 6. pulling the cover; 7. an upper shell; 8. a motor; 9. a switch plate; 10. controlling the adapter plate; 11. a photoelectric switch; 12. an induction loop; 13. a bearing; 14. a gear; 15. a screw rod; 16. a slider; 17. a roller; 18. a roller; 19. a lower case; 20. a motor shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a single motor driver device includes a bed body 1, a leg rotating shaft 2, a leg supporting shaft 3, a back supporting shaft 4 and a back rotating shaft 5, wherein the leg rotating shaft 2, the leg supporting shaft 3, the back supporting shaft 4 and the back rotating shaft 5 are movably connected with the edge of the bed body 1 side by side, the leg supporting shaft 3 and the back supporting shaft 4 are respectively clamped into a rotary upper shell 7, the leg supporting shaft 3 and the back supporting shaft 4 are supported by the upper shell 7, a pull cover 6 is installed on the top of the upper shell 7, the bottom and a lower shell 19 are fixedly spliced to form a shell, and the upper shell 7 is penetrated through by the leg rotating shaft 2 and the back rotating shaft 5.

Referring to fig. 2, a control adapter plate 10 and an insertion bearing 13 are mounted on a lower shell 19, a lead screw 15 penetrates through the bearing 13, the lead screw 15 is supported and rotated in the bearing 13, an induction ring 12 and a gear 14 are fixed at one end of the lead screw 15, the other end of the lead screw 15 is connected with a sliding block 16 through threads, a rolling shaft 17 and a roller 18 are mounted on the sliding block 16, the sliding block 16 is in rolling friction with hooks of a leg rotating shaft 2 and a back rotating shaft 5, and a bed is driven to lift through the rolling friction.

The photoelectric switch 11 is installed on the control adapter plate 10, the induction ring 12 is inserted into the photoelectric switch 11, holes with equal intervals are distributed on the induction ring 12, the holes on the induction ring 12 are positioned in the photoelectric switch 11, the distance of the forward movement or the backward movement of the sliding block 16 can be calculated through the number of the induction holes, and the sliding distance of the sliding block 16 can be directly known;

the gear 14 is engaged with the motor shaft 20, a worm gear is formed between the gear 14 and the motor shaft 20, one end of the motor shaft 20 extends to the outside of the shell to be connected with the motor 8, the motor 8 is electrically connected with the switch board 9 through guiding, the switch board 9 drives the motor 8 to operate, the motion state is transmitted to the gear 14, and the screw rod 15 is driven to rotate.

The motion principle is that after being electrified, the motor 8 rotates clockwise or anticlockwise, the worm gear drives the gear 14 to rotate clockwise or anticlockwise, meanwhile, the sliding block 16 is pushed to move forwards and backwards through spiral transmission, the driving device is provided with the sensing ring 12 at the position of the bearing 13, when the worm gear drives the gear 14 to rotate, the gear 14, the screw rod 15 and the sensing ring 12 rotate together, holes of the sensing ring 12 are distributed, when the photoelectric switch 11 senses the holes on the sensing ring 12, the distance for the sliding block 16 to move forwards or backwards can be calculated through sensing the number of the holes, the calculation of the transmission ratio of the motor 8 and the gear 14 can be omitted, the Hall motor 8 is prevented from continuously rotating to calculate Hall signals when the gear 14 is damaged and does not rotate, so that errors are generated, the roller 18 and the roller 17 are arranged on the sliding block 16, and the rolling friction generated between the sliding block 16 and hooks of the leg roller shaft 2 and the back shaft 5 is realized by the, therefore, the advantages of small friction resistance, high transmission efficiency, high positioning precision and the like are realized.

In summary, the following steps: this single motor driver device, motor 8 drives gear 14 through the turbine worm and drives in the same direction as time or anticlockwise rotation, promote slider 16 and advance and retreat, when photoelectric switch 11 senses the hole on the induction ring 12, can calculate the distance that slider 16 advances or retreats through the number that senses the hole, can save the drive ratio of calculation motor 8 and gear 14, thereby prevent that hall motor 8 from continuing to rotate when gear 14 from appearing damaging and do not rotating and calculate hall signal and produce the mistake, rely on gyro wheel 18 and roller bearing 17 on the slider 16 to realize the rolling friction that produces between the hook of slider 16 and shank pivot 2 and back pivot 5, thereby it is little to realize frictional resistance, high transmission efficiency, positioning accuracy advantage such as high.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A single motor driver device, includes bed body (1), shank pivot (2), shank support axle (3), back support axle (4) and back pivot (5), its characterized in that: the leg rotating shaft (2), the leg supporting shaft (3), the back supporting shaft (4) and the back rotating shaft (5) are movably connected with the edge of the bed body (1) side by side, the leg supporting shaft (3) and the back supporting shaft (4) are respectively clamped into the rotary upper shell (7), the top of the upper shell (7) is provided with a pull cover (6), the bottom of the upper shell is fixedly spliced with the lower shell (19) to form a shell, and the upper shell (7) is penetrated by the leg rotating shaft (2) and the back rotating shaft (5);

a control adapter plate (10) and an inserted bearing (13) are installed on the lower shell (19), a screw rod (15) penetrates through the bearing (13), an induction ring (12) and a gear (14) are fixed at one end of the screw rod (15), the other end of the screw rod (15) is connected with a sliding block (16) through threads, and a roller (17) and a roller (18) are installed on the sliding block (16);

the control adapter plate (10) is provided with a photoelectric switch (11), and the induction ring (12) is inserted into the photoelectric switch (11);

the gear (14) is engaged with the motor shaft (20), one end of the motor shaft (20) extends to the outside of the shell to be connected with the motor (8), and the motor (8) is electrically connected with the switch board (9) through guiding.

2. Single motor driver device according to claim 1, characterized in that the sliding block (16) is in rolling friction with the hooks of the leg spindle (2) and the back spindle (5).

3. A single motor driver apparatus as claimed in claim 1, wherein said sensing ring (12) has equally spaced holes, and the holes on the sensing ring (12) are located in the photoelectric switch (11), and the distance of the slider (16) moving forward or backward is calculated by sensing the number of the holes.

4. A single motor drive unit according to claim 1, characterized in that a worm gear is formed between the gear wheel (14) and the motor shaft (20).

Images