CN113381563B

CN113381563B - Servo motor with dehumidification function

Info

Publication number: CN113381563B
Application number: CN202110633758.9A
Authority: CN
Inventors: 杨开生; 吴正灿
Original assignee: Zhejiang Xinli Electrical Technology Co ltd
Current assignee: Zhejiang Xinli Electrical Technology Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2023-02-28
Anticipated expiration: 2041-06-07
Also published as: CN113381563A

Abstract

The invention belongs to the technical field of servo motors, and particularly relates to a servo motor with a dehumidification function, which comprises a shell and two groups of dehumidification mechanisms arranged at two ends of the shell, wherein a rotating shaft, a rotor winding, a stator and a fan are arranged in the shell, each dehumidification mechanism comprises a top pressure plate and a plurality of mounting cylinders, the mounting cylinders are fixedly arranged at the end parts of the shell and are communicated with the interior of the shell, sponge columns are filled in the mounting cylinders, stop sleeves are arranged at the outer ends of the mounting cylinders, top plates are slidably arranged on the inner sides of the sponge columns in the mounting cylinders, air holes are formed in the stop sleeves and the top plates, ejector rods are fixedly arranged on the top plates, the top pressure plates are in transmission connection with the rotating shaft, the top pressure plates are in rotation connection with the shell, each top pressure plate comprises an arc-shaped boss, and the free ends of the ejector rods abut against the top of the pressure plates. The purpose is as follows: the problem of current servo motor practicality reduce is caused to the inside steam that gets into easily of motor that solves current servo motor structural defect and leads to, arouses the motor short circuit to damage, arouses the motor to damage even when serious.

Description

Servo motor with dehumidification function

Technical Field

The invention belongs to the technical field of servo motors, and particularly relates to a servo motor with a dehumidification function.

Background

The servo motor is an engine which controls mechanical elements to operate in a servo system, is an indirect speed change device of a supplementary motor, has the rotation speed of a rotor controlled by an input signal and can quickly react, is used as an execution element in an automatic control system, and has the characteristics of small electromechanical time constant, high linearity, starting voltage and the like.

But current servo motor mostly adopts air-cooled mode to dispel the heat, and during the heat dissipation, in order to improve the heat dispersion of motor, often rely on addding cooling tube or louvre to realize the circulation of air, consequently lead to the inside steam that gets into of motor easily, arouse the motor short circuit to damage, arouse the motor to damage even when serious, cause current servo motor practicality to reduce.

Disclosure of Invention

The purpose of the invention is: the servo motor with the dehumidification function is used for solving the problems that water vapor easily enters the interior of a motor caused by structural defects of the existing servo motor, the motor is damaged due to short circuit, the motor is damaged even in severe cases, and the practicability of the existing servo motor is reduced.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a servo motor with dehumidification function, includes the shell and installs two sets of dehumidification mechanisms at the shell both ends, be equipped with pivot, rotor winding, stator and fan in the shell, dehumidification mechanism includes a top pressure dish and a plurality of installation section of thick bamboo, installation section of thick bamboo fixed mounting at the tip of shell, and with the inside intercommunication of shell, the sponge post is filled with in the installation section of thick bamboo, the spacer sleeve is installed to installation section of thick bamboo outer end, in the inboard slidable mounting of sponge post there is the roof in the installation section of thick bamboo, the bleeder vent has all been seted up on spacer sleeve and the roof, fixed mounting has the ejector pin on the roof, the top pressure dish is connected with the pivot transmission, the top pressure dish rotates with the shell to be connected, the top pressure dish includes the arc boss, the free end top of ejector pin is leaned on the pressure dish top.

Further limited, the free end of the ejector rod is rotatably provided with a rolling ball, and the ejector rod is contacted with the jacking plate through the rolling ball. By adopting the structural design, the rolling ball replaces the contact of the ejector rod and the jacking plate, so that the sliding friction between the ejector rod and the jacking plate is converted into the rolling friction between the rolling ball and the jacking plate, the friction force is reduced, and the service life is prolonged.

Further limiting, an annular groove is formed in the pressing disc, and the rolling ball is located in the annular groove. Such structural design, through annular groove to the spin location, avoid the spin to take place the skew in the use.

Further inject, the homogeneous body shaping of roof both sides has a spacing piece, the spacing groove has been seted up to the installation section of thick bamboo inner wall axial, the spacing piece is located the spacing inslot. The top plate is axially positioned through the mutual matching of the limiting groove and the limiting block, and the deflection of the top plate in the use process can be avoided.

Further limiting, the lower part of the mounting cylinder is provided with a water accumulating tank which is gradually inclined downwards from inside to outside. Such structural design, the water that is extruded in the sponge post flows into in the ponding groove, then flows out along the ponding groove under the effect of gravity, can avoid to a certain extent by the water of extruding to be absorbed again by the sponge post.

Further inject, install reduction gears between top pressure dish and the pivot, top pressure dish passes through reduction gears and is connected with the pivot transmission. Due to the structural design, the rotating speed ratio between the pressing plate and the rotating shaft is reduced through the speed reducing mechanism, so that the pressing plate can rotate at a rotating speed smaller than that of the rotating shaft.

Further inject, reduction gears includes sun gear, outer ring gear and a plurality of planet wheel, the sun gear is installed in the pivot, outer ring gear is installed inside the shell, the roof pressure dish is close to the fixed a plurality of installation axles that are equipped with of stator one end, the planet wheel rotates and installs on the installation axle, sun gear and planet wheel meshing, the planet wheel meshes with outer ring gear. A planetary gear train is formed by the sun gear, the outer gear ring, the planet gear and the top pressure plate, and then the planetary gear train forms a speed reducing mechanism.

Further limiting, the pressing plate is provided with a lightening hole. Such structural design can reduce the whole quality of top pressure dish through the lightening hole, reduces the running pressure of motor, also can provide bigger space to the circulation of air in the shell through the lightening hole, and the practicality is stronger.

The invention adopting the technical scheme has the advantages that:

1. air entering the motor is filtered through the sponge columns, and the moisture-proof capacity of the servo motor is ensured on the basis of ensuring that the interior of the servo motor has enough heat dissipation strength;

2. through the mutual matching of the top pressing disc, the arc-shaped boss, the top plate and the ejector rod, the sponge column is extruded in the using process, so that water in the sponge column can be automatically discharged, the water vapor absorption capacity is restored, water vapor in air passing through the sponge column can be absorbed in a longer time, and the practicability is high;

3. the rotating speed ratio between the jacking disc and the rotating shaft is reduced through the speed reducing mechanism, so that the jacking disc can rotate at a rotating speed lower than that of the rotating shaft;

4. a planetary gear train is formed by the sun gear, the outer gear ring, the planet gear and the top pressure plate, and then the planetary gear train forms a speed reducing mechanism.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of a servo motor with a dehumidifying function according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a servo motor with a dehumidifying function according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic structural diagram of a top platen portion in an embodiment of a servo motor with a dehumidification function according to the present invention;

FIG. 5 is a schematic structural diagram of a top plate, a mandril and a rolling ball part in an embodiment of a servo motor with a dehumidification function;

FIG. 6 is a schematic structural diagram of a speed reduction mechanism portion in an embodiment of a servo motor with a dehumidification function according to the present invention;

the main component symbols are as follows:

a shell 1, a rotating shaft 11, a rotor winding 12, a stator 13, a fan 14,

The installation tube 2, the sponge column 20, the top plate 21, the baffle sleeve 210, the vent hole 211, the limit block 212, the limit groove 213,

A mandril 22, a water accumulating tank 220, a rolling ball 23,

The top pressing plate 3, the arc-shaped boss 31, the annular groove 32, the lightening hole 33,

Sun gear 41, outer ring gear 42, planet gears 43, mounting shaft 430.

Detailed Description

The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", etc., used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 6, the servo motor with dehumidification function of the present invention comprises a housing 1 and two sets of dehumidification mechanisms installed at two ends of the housing 1, wherein a rotating shaft 11, a rotor winding 12, a stator 13 and a fan 14 are installed in the housing 1, each dehumidification mechanism comprises a pressing plate 3 and a plurality of installation cylinders 2, the installation cylinders 2 are fixedly installed at the end portion of the housing 1 and are communicated with the inside of the housing 1, sponge columns 20 are filled in the installation cylinders 2, blocking sleeves 210 are installed at the outer ends of the installation cylinders 2, top plates 21 are slidably installed inside the sponge columns 20 in the installation cylinders 2, air holes 211 are respectively formed in the blocking sleeves 24 and the top plates 21, ejector rods 22 are fixedly installed on the top plates 21, the pressing plates 3 are in transmission connection with the rotating shaft 11, the pressing plates 3 are rotatably connected with the housing 1, the pressing plates 3 comprise arc-shaped bosses 31, and the free ends of the ejector rods 22 abut against the pressing plates 3.

The free end of the push rod 22 is rotatably provided with a rolling ball 23, and the push rod 22 is contacted with the top pressure plate 3 through the rolling ball 23. The rolling balls 23 replace the ejector rod 22 to be in contact with the top pressure plate 3, so that sliding friction between the ejector rod 22 and the top pressure plate 3 is converted into rolling friction between the rolling balls 23 and the top pressure plate 3, friction force is reduced, and service life is prolonged.

The top pressure plate 3 is provided with an annular groove 32, and the rolling ball 23 is positioned in the annular groove 32. The ball 23 is positioned by the annular groove 32 to prevent the ball 23 from shifting during use.

The two sides of the top plate 21 are integrally formed with limit blocks 212, the inner wall of the mounting tube 2 is axially provided with limit grooves 213, and the limit blocks 212 are located in the limit grooves 213. The top plate 21 is axially positioned by the matching of the limiting groove 213 and the limiting block 212, so that the top plate 21 can be prevented from deflecting in the use process.

The lower part of the mounting cylinder 2 is provided with a water collecting tank 220 which is gradually inclined downwards from inside to outside. The water squeezed out from the sponge columns 20 flows into the water collecting tank 220, and then flows out along the water collecting tank 220 under the action of gravity, so that the water squeezed out can be prevented from being re-absorbed by the sponge columns 20 to a certain extent.

A speed reducing mechanism is arranged between the top pressure plate 3 and the rotating shaft 11, and the top pressure plate 3 is in transmission connection with the rotating shaft 11 through the speed reducing mechanism. The rotation speed ratio between the pressing plate 3 and the rotating shaft 11 is reduced by the reduction mechanism so that the pressing plate 3 can rotate at a rotation speed less than that of the rotating shaft 11.

The speed reducing mechanism comprises a sun gear 41, an outer gear ring 42 and a plurality of planet gears 43, wherein the sun gear 41 is installed on the rotating shaft 11, the outer gear ring 42 is installed inside the shell 1, one end, close to the stator 13, of the top press plate 3 is fixedly provided with a plurality of installation shafts 430, the planet gears 43 are rotatably installed on the installation shafts 430, the sun gear 41 is meshed with the planet gears 43, and the planet gears 43 are meshed with the outer gear ring 42. A planetary gear train is formed by the sun gear 41, the outer gear ring 4, the planet gear 43 and the jacking disc 3, and then the speed reducing mechanism is formed by the planetary gear train, and the central axes of the jacking disc 3 and the rotating shaft 11 are overlapped, so that the installation cylinders 2 of the same group of dehumidifying mechanisms can be circumferentially arranged by taking the rotating shaft 11 as the center, and the uniform circulation of air is more facilitated.

The top pressure plate 3 is provided with lightening holes 33. Can reduce the whole quality of top pressure dish 3 through lightening hole 33, reduce the running pressure of motor, also can provide bigger space to the circulation of air in shell 1 through lightening hole 33, the practicality is stronger.

In this embodiment, when the motor is used, the rotating shaft 11 rotates to drive the fan 14 to rotate, so that the air on the left side in the casing 1 circulates to the right side, and further the air outside the motor flows into the casing 1 through the dehumidification mechanism on the left side and is exhausted from the casing 1 through the dehumidification mechanism on the left side;

in the process of air circulation, the sponge column 20 is used for absorbing water vapor in the air, meanwhile, the rotation of the rotating shaft 11 is used for driving the jacking disk 3 to rotate, when the arc-shaped boss 31 is abutted against the rolling ball 23, the arc-shaped boss 31 drives the top plate 21 to move towards the direction of the sponge column 20, the sponge column 20 is extruded, water in the sponge column 20 is extruded, the water flows into the water accumulating tank 220, and then flows out along the water accumulating tank 220 under the action of gravity;

the top pressure dish 3 continues to rotate until spin 23 breaks away from arc boss 31, and at this moment, sponge post 20 resets under self elasticity, and then drives roof 21 and resets for spin 23 pushes up again and leans on top pressure dish 3, is extruded by arc boss 31 until next time.

The servo motor with the dehumidification function provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a servo motor with dehumidification function which characterized in that: including shell (1) and install two sets of dehumidification mechanisms at shell (1) both ends, be equipped with pivot (11), rotor winding (12), stator (13) and fan (14) in shell (1), dehumidification mechanism includes top pressure dish (3) and a plurality of installation cylinder (2), installation cylinder (2) fixed mounting at the tip of shell (1) and with the inside intercommunication of shell (1), sponge post (20) are filled in installation cylinder (2), spacer sleeve (210) is installed to installation cylinder (2) outer end, in sponge post (20) inboard slidable mounting have roof (21) in installation cylinder (2), bleeder vent (211) have all been seted up on spacer sleeve (210) and roof (21), fixed mounting has ejector pin (22) on roof (21), top pressure dish (3) are connected with pivot (11) transmission, top pressure dish (3) rotate with shell (1) and are connected, top pressure dish (3) include arc boss (31), the free end top of ejector pin (22) is leaned on top pressure dish (3), install free end top pressure dish (23) and contact ball (23) and ejector pin (23) are from spin.

2. A servo motor having a dehumidifying function according to claim 1, wherein: an annular groove (32) is formed in the pressing disc (3), and the rolling ball (23) is located in the annular groove (32).

3. A servo motor having a dehumidifying function according to claim 2, wherein: roof (21) both sides equal integrated into one piece have spacing piece (212), spacing groove (213) have been seted up to installation section of thick bamboo (2) inner wall axial, spacing piece (212) are located spacing groove (213).

4. A servo motor having a dehumidifying function according to claim 1, wherein: the lower part of the mounting cylinder (2) is provided with a water accumulating tank (220) which is gradually inclined downwards from inside to outside.

5. A servo motor with a dehumidifying function according to claim 1, wherein: install reduction gears between top pressure dish (3) and pivot (11), top pressure dish (3) are connected through reduction gears and pivot (11) transmission.

6. A servo motor having a dehumidifying function according to claim 5, wherein: the reduction gears includes sun gear (41), outer ring gear (42) and a plurality of planet wheel (43), install in pivot (11) sun gear (41), outer ring gear (42) are installed inside shell (1), top pressure dish (3) are close to stator (13) one end and are fixed and are equipped with a plurality of installation axles (430), planet wheel (43) rotate and install on installation axle (430), sun gear (41) and planet wheel (43) meshing, planet wheel (43) and outer ring gear (42) meshing.

7. A servo motor having a dehumidifying function according to claim 6, wherein: the top pressing plate (3) is provided with a lightening hole (33).