CN213125696U

CN213125696U - Motor reducer sealing structure

Info

Publication number: CN213125696U
Application number: CN202021835917.0U
Authority: CN
Inventors: 胡卫; 黄艺华; 江国朝; 蒋军
Original assignee: Shenzhen Casic Motor System Co ltd
Current assignee: Shenzhen Casic Motor System Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-04
Anticipated expiration: 2030-08-26

Abstract

The application discloses a motor reducer sealing structure, wherein the rotation of an output rotating shaft is transmitted to an output shaft through speed reduction of a reduction box, and the output shaft is fixedly connected to a roller; the end cover is arranged at one end of the motor, which is provided with a motor outgoing line, and comprises a soft first end cover and a hard second end cover, wherein the first end cover is clamped between the second end cover and the motor; the cylindrical shell is fixed on the peripheries of the motor, the reduction box and the end cover; according to the sealing structure of the motor reducer, the hard second end cover plays a role of a structural part; the soft first end cap acts as a seal; the setting of soft first end cover improves the sealed effect that the motor was qualified for the next round of competitions and passes first wire outlet department, can guarantee the sealed effect between second end cover and the motor simultaneously.

Description

Motor reducer sealing structure

Technical Field

The utility model relates to a motor reduction gear field, in particular to motor reduction gear seal structure.

Background

Motorized drums have a wide variety of uses in various fields. Along with the development of science and technology, various domestic drive mechanical structure are more and more, and a core functional component in the machine of sweeping the floor of common is the cylinder, and the structure of sweeping such as brush hair is connected to the cylinder outer wall to the rotation of cylinder can realize the function of sweeping the floor.

Because the working environment of the roller has liquid dirt and powder dirt, if the dirt enters the sealing structure of the motor reducer, unsmooth operation and even structural damage can be caused. The motor reducer sealing structure generally comprises a fixed end, a motor, a speed reducing mechanism and an output end, wherein the two ends of the motor reducer are respectively an output shaft end and a power supply wire end. The poor sealing effect at the two ends can threaten the motor, and the sealing effect at the power line end is particularly important.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor reducer seal structure aims at improving the sealed effect of motor reducer structure in the cylinder.

In order to achieve the above object, the utility model provides a motor reduction gear seal structure, include:

the motor comprises an output rotating shaft and a motor outgoing line, wherein the motor outgoing line penetrates out of one end of the motor, and the output rotating shaft is led out of the other end of the motor;

the reduction gearbox is fixedly connected with one end of the motor, which is provided with the output rotating shaft, and comprises an output shaft, the rotation of the output rotating shaft is transmitted to the output shaft through the reduction gearbox in a speed reducing way, and the output shaft is fixedly connected to the roller;

the end cover is arranged at one end of the motor, which is provided with the motor outgoing line, and comprises a soft first end cover and a hard second end cover, wherein the first end cover is clamped between the second end cover and the motor, the first end cover is used for isolating and sealing the second end cover and the motor, a first line outlet is arranged on the first end cover, the motor outgoing line penetrates through the first line outlet and enters the second end cover, and the motor outgoing line and the first line outlet form interference fit;

the cylindrical shell is fixed on the peripheries of the motor, the reduction gearbox and the end cover.

Furthermore, a partition plate is arranged in the middle of the second end cover, a second wire outlet is formed in the partition plate, and the motor wire outlet and the second wire outlet form interference fit.

Further, the first end cover is sleeved outside the second end cover, and the first end cover is fixed in the second end cover in an interference fit mode.

Further, the reducing gear box includes the reducing gear box barrel, the internal perisporium of reducing gear box barrel is the metal ring gear, the periphery wall of reducing gear box barrel is the wall column structure of polymer material, the internal perisporium with periphery wall interconnect.

Furthermore, at least one sealing ring is clamped between the outer wall of the reduction gearbox and the inner wall of the cylindrical shell, and at least one sealing ring is clamped between the outer wall of the second end cover and the inner wall of the cylindrical shell.

Furthermore, the reduction gearbox and the outer wall of the second end cover are both provided with installation groove rings, and the sealing ring is sleeved in the installation groove rings.

Furthermore, the first end cover is bowl-shaped, the open end of the first end cover is connected with the motor, and sealant is filled in the space between the motors of the first end cover.

Furthermore, a protruding ring is arranged on the outer wall of the opening end of the first end cover, and the protruding ring is clamped by the first end cover and the motor.

Furthermore, waterproof glue is filled between the motor and the connecting gap of the reduction gearbox.

Further, the reduction gearbox comprises a reduction gearbox bottom cover and a reduction gearbox barrel, and an oil seal framework is arranged at the part, matched with the output shaft, of the reduction gearbox barrel.

According to the sealing structure of the motor reducer, the hard second end cover plays a role of a structural part; the soft first end cap acts as a seal; the setting of soft first end cover improves the sealed effect that the motor was qualified for the next round of competitions and passes first wire outlet department, can guarantee the sealed effect between second end cover and the motor simultaneously.

Drawings

Fig. 1 is an overall schematic view of a motor reducer seal structure according to an embodiment of the present invention;

fig. 2 is an overall schematic view of a motor reducer seal structure according to an embodiment of the present invention (with the tubular case hidden);

fig. 3 is a schematic view illustrating a motor and an end cover according to an embodiment of the present invention;

fig. 4 is an assembly schematic view (longitudinal section) of a motor reducer seal structure according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1 to 4, in an embodiment of the present invention, a sealing structure for a motor reducer includes:

the motor 100 comprises an output rotating shaft 110 and a motor outgoing line 120, wherein the motor outgoing line 120 penetrates out of one end of the motor 100, and the output rotating shaft 110 is led out of the other end of the motor 100;

a reduction box 200, wherein the reduction box 200 is connected to one end of the motor 100 having the output rotating shaft 110, so that the motor 100 is fixed to the reduction box 200, the reduction box 200 comprises an output shaft 230, the rotation of the output rotating shaft 110 is transmitted to the output shaft 230 through the reduction box 200, and the output shaft 230 is fixedly connected to the roller 700; in implementation, the reduction gearbox 200 can be a common reduction gear such as a planetary reduction gearbox;

the end cap 300 is disposed at one end of the motor 100, on which the motor outgoing line 120 is disposed, and the end cap 300 includes a soft first end cap 320 and a hard second end cap 310, wherein the first end cap 320 is clamped between the second end cap 310 and the motor 100, the first end cap 320 is used for sealing the second end cap 310 and the motor 100 in an isolated manner, the first end cap 320 is provided with a first outlet 321, the motor outgoing line 120 passes through the first outlet 321 and enters the second end cap 310, and the motor outgoing line 120 and the first outlet 321 form an interference fit;

and a cylindrical housing 500, wherein the cylindrical housing 500 is fixed to the outer peripheries of the motor 100, the reduction gearbox 200 and the end cover 300.

The hard second end cap 310 is made of hard plastic such as phenolic plastic, and functions as a structural member; the soft first end cap 320 is made of rubber such as nitrile rubber, and functions as a sealing member. The arrangement of the soft first end cap 320 improves the sealing effect of the motor outgoing line 120 passing through the first line outlet 321, and simultaneously can ensure the sealing effect between the second end cap 310 and the motor 100.

In one embodiment, a partition plate is disposed in the middle of the second end cap 310, a second outlet 311 is disposed on the partition plate, and the motor outlet 120 forms an interference fit with the second outlet 311. The partition panel in the middle of the second end cap 310 provides a plurality of layers of sealing effect, and the motor outgoing line 120 and the second outgoing line outlet 311 form an interference fit, so that the motor outgoing line 120 passing through does not affect the sealing effect of the partition panel.

In one embodiment, the first end cap 320 is sleeved outside the second end cap 310, and the first end cap 320 is fixed inside the second end cap 310 by interference fit. Securing effect and sealing effect between the first and

second end caps

320 and 310 are ensured.

In one embodiment, the reduction gearbox 200 includes a reduction gearbox cylinder 220, an inner peripheral wall of the reduction gearbox cylinder 220 is a metal gear ring, an outer peripheral wall of the reduction gearbox cylinder 220 is a polymer wall-shaped structure, and the inner peripheral wall and the outer peripheral wall are connected with each other.

The inner peripheral wall of the reduction gearbox cylinder 220 is provided with the metal gear ring to increase rigidity and wear resistance, and the outer peripheral wall of the reduction gearbox cylinder 220 is provided with the wall-shaped structure made of polymer to increase corrosion resistance.

In one embodiment, a sealing ring is clamped between the outer wall of the reduction gearbox 200 and the inner wall of the cylindrical shell 500, and a sealing ring is clamped between the outer wall of the second end cover 310 and the inner wall of the cylindrical shell 500. The seal rings increase the sealing effect between the cylindrical casing 500 and the reduction gear case 200 and between the cylindrical casing 500 and the second end cap 310.

In one embodiment, the reduction box 200 and the second end cap 310 are provided with mounting groove rings on the outer walls thereof, and the sealing rings are sleeved in the mounting groove rings. The installation of sealing washer is convenient for in the setting of installation groove circle.

In one embodiment, the first end cap 320 is bowl-shaped, an open end of the first end cap 320 is connected to the motor 100, and a space between the first end cap 320 and the motor 100 is filled with a sealant.

In the embodiment, the sealant is common waterproof colloid such as glass cement, and the waterproof colloid has a high-quality sealing effect, and particularly provides a high-quality sound insulation sealing effect. The sealing structure formed by the motor outlet 120 at the first outlet 321 is mainly waterproof, dustproof or other foreign matter infiltration, and the sealing glue between the first end cap 320 and the motor 100 can provide sound insulation sealing effect in addition to the above-mentioned impurity-proof sealing effect.

In one embodiment, a protruding ring is disposed on an outer wall of the open end of the first end cap 320, and the protruding ring is clamped between the first end cap 320 and the motor 100. The above-mentioned shape of the protruding ring facilitates the clamping of the first end cap 320 between the second end cap 310 and the motor 100, and the protruding ring can also achieve the sealing effect of an O-ring.

In one embodiment, a waterproof glue is filled between the connecting gap between the motor 100 and the reduction box 200. The waterproof glue avoids the impurities from permeating from the connecting gap, and the operation of filling the waterproof glue is simple.

In one embodiment, the reduction gearbox 200 comprises a reduction gearbox 200 bottom cover and a reduction gearbox cylinder 220, and an oil seal framework 800 is arranged at the part of the reduction gearbox cylinder 220 matched with the output shaft 230. On the premise that the oil seal framework 800 provides rolling friction, a high-quality sealing effect between the output shaft 230 and the reduction gearbox 200 is ensured.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. A motor reducer sealing structure, characterized in that the motor reducer sealing structure includes:

the reduction gearbox is connected with one end, provided with the output rotating shaft, of the motor, and comprises an output shaft, the rotation of the output rotating shaft is transmitted to the output shaft through the reduction gearbox in a speed reducing mode, and the output shaft is fixedly connected to the roller;

2. The motor reducer sealing structure according to claim 1, wherein a partition plate is provided in a middle portion of the second end cap, a second outlet is provided in the partition plate, and the motor outlet forms an interference fit with the second outlet.

3. The motor reducer seal structure of claim 1, wherein the first end cap is sleeved outside the second end cap, and the first end cap is fixed inside the second end cap by an interference fit.

4. The motor reducer sealing structure according to claim 1, wherein the reduction gearbox includes a reduction gearbox cylinder, an inner peripheral wall of the reduction gearbox cylinder is a metal gear ring, an outer peripheral wall of the reduction gearbox cylinder is a polymer wall-shaped structure, and the inner peripheral wall and the outer peripheral wall are connected with each other.

5. The motor reducer sealing structure according to claim 1, wherein at least one sealing ring is clamped between the outer wall of the reduction gearbox and the inner wall of the cylindrical shell, and at least one sealing ring is clamped between the outer wall of the second end cover and the inner wall of the cylindrical shell.

6. The motor reducer sealing structure according to claim 5, wherein the reduction gearbox and the second end cap are provided with mounting groove rings on outer walls thereof, and the sealing ring is sleeved in the mounting groove rings.

7. The motor reducer sealing structure according to claim 1, wherein the first end cover is bowl-shaped, an open end of the first end cover is connected to the motor, and a space between the first end cover and the motor is filled with a sealant.

8. The motor reducer sealing structure according to claim 7, wherein a protruding ring is provided on an outer wall of the open end of the first end cover, the protruding ring being sandwiched by the first end cover and the motor.

9. The motor reducer sealing structure according to claim 1, wherein a waterproof glue is filled between a connecting gap between the motor and the reduction gearbox.

10. The motor reducer sealing structure according to claim 1, wherein the reduction gearbox includes a reduction gearbox bottom cover and a reduction gearbox cylinder, and an oil seal framework is provided at a part of the reduction gearbox cylinder, which is matched with the output shaft.