CN216599222U

CN216599222U - Motor for hot air device

Info

Publication number: CN216599222U
Application number: CN202123451889.XU
Authority: CN
Inventors: 林鼎润; 董浩
Original assignee: Suzhou Huichuan Control Technology Co Ltd
Current assignee: Suzhou Huichuan Control Technology Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-24
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a motor for a hot air device, which comprises a motor body and a bearing assembly; the bearing assembly and the motor body are coaxially arranged, the bearing assembly is located on the outer side of the motor body and comprises a bearing seat and a bearing, the bearing is located inside the bearing seat, and a lubricating cavity is formed inside the bearing seat. Because the bearing frame is located the outside of motor body, can install high temperature resistant lubricating oil additional in the lubrication cavity, wherein high temperature resistant lubricating oil can bear 1000 ℃ of high temperature, adopts the lubricating grease that can only bear high temperature about 160 ℃ compared in ordinary motor, and the loss rate is slower, therefore the maintenance cycle is longer or need not maintain, simultaneously because the bearing frame is located motor originally externally for the maintenance of bearing is more convenient.

Description

Motor for hot air device

Technical Field

The utility model relates to a technical field of motor especially relates to a motor for hot-blast device.

Background

In the current textile industry, a plurality of links need a hot air device to heat gauze and the like, so that higher production efficiency is achieved, and the quality of products is better.

The current hot air device is mainly a hot air motor which comprises a fan and a motor, wherein a bearing of the motor is lubricated by lubricating grease due to sealing requirements, but because the working environment temperature of the hot air motor is higher, the lubricating grease is consumed at a high temperature quickly, if an operator does not add the lubricating grease in time, the bearing is easily damaged after the lubricating grease is consumed, and the motor is burnt. In addition, the existing hot air motor is also very inconvenient in maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a motor for hot-blast device aims at solving current hot-blast motor inconvenient technical problem in the maintenance.

In order to achieve the above object, the present invention provides a motor for a hot air device, the motor for a hot air device including: a motor body and a bearing assembly; the bearing assembly and the motor body are coaxially arranged, the bearing assembly is located on the outer side of the motor body and comprises a bearing seat and a bearing, the bearing is located inside the bearing seat, and a lubricating cavity is formed inside the bearing seat.

Preferably, two ends of the bearing seat are respectively provided with a sealing structure.

Preferably, the sealing structure is a framework oil seal.

Preferably, the bearing frame deviates from the one end of motor body is provided with the flange, the both ends of flange all are provided with the skeleton oil blanket, one of them the skeleton oil blanket is located the flange deviates from the one end of bearing frame and with the flange butt, another the skeleton oil blanket is located the flange with between the bearing frame.

Preferably, a rotating shaft of the motor penetrates through the lubricating cavity and extends out of the bearing seat, and the bearing sleeve is arranged on the rotating shaft.

Preferably, the side wall of the bearing seat is provided with a through hole for communicating the outside and the lubricating cavity, and the outer end part of the through hole is provided with a ventilation cap.

Preferably, the number of the through holes is two, and in the two through holes, one of the through holes is an oil inlet hole, and the other through hole is an oil drain hole.

Preferably, the breathable cap is made of a transparent material.

Preferably, the number of the bearings is two, and the two bearings are respectively positioned at two ends of the lubricating cavity.

Preferably, the motor is a split type permanent magnet synchronous motor.

The above technical scheme of the utility model, because the bearing frame is located the outside of motor body, high temperature resistant lubricating oil can be installed additional in the lubrication cavity, and wherein high temperature resistant lubricating oil can bear 1000 ℃ of high temperature, adopts the lubricating grease that can only bear high temperature about 160 ℃ in comparison in ordinary motor, and the loss rate is slower, therefore the maintenance cycle is longer or need not maintain, simultaneously because the bearing frame is located the motor body outward for the maintenance of bearing is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained by the structures shown in the drawings without creative efforts.

Fig. 1 is an assembly view of a motor for a hot air device according to an embodiment of the present invention;

fig. 2 is an assembly schematic view of a motor for a hot air device according to another embodiment of the present invention.

The reference numbers illustrate:

the purpose of the present invention, its functional features and advantages will be further described with reference to the accompanying drawings.

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.

It should be noted that all the directional indicators (such as upper … … and lower … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in fig. 1), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" can include at least one of the feature either explicitly or implicitly.

Moreover, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are combined and contradicted with each other or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the present invention is not within the protection scope of the present invention.

The utility model provides a motor 10 for hot air device, as shown in fig. 1, the motor 10 for hot air device has a motor body 110 and a bearing assembly 120; the bearing assembly 120 is coaxially disposed with the motor body 110, the bearing assembly 120 is located outside the motor body 110, the bearing assembly 120 includes a bearing housing 130 and a bearing 140, the bearing 140 is located inside the bearing housing 130, and a lubrication cavity 131 is formed inside the bearing housing 130.

Wherein, motor body 110 includes stator assembly 180 and rotor assembly 190, because bearing frame 130 is located motor body 110's the outside, can add high temperature resistant lubricating oil in the lubrication cavity 131, wherein high temperature resistant lubricating oil can bear the high temperature of 1000 ℃, compared with ordinary motor adoption can only bear the lubricating grease of high temperature about 160 ℃, the loss rate is slower, consequently the maintenance cycle is longer or need not maintain, because bearing frame 130 is located motor body 110 outward simultaneously for bearing 140's maintenance is more convenient.

Also, the bearing housing 130 is provided at both ends thereof with sealing structures 170, respectively. The sealing structure 170 may prevent external dust from entering the lubrication chamber 131 to reduce the quality of the lubricating oil, and may prevent the lubricating oil in the lubrication chamber 131 from leaking out of the bearing housing 130, thereby extending the maintenance period of the motor 10 for the hot air device or eliminating the need for maintenance.

Further, the side wall of the bearing seat 130 is provided with a through hole 132 communicating the outside and the lubrication cavity 131, the outer end of the through hole 132 is provided with a ventilation cap 133, and the outer end of the through hole 132 is one end directly connected with the outside.

The through hole 132 is opened so that an operator can add lubricating oil into the lubricating cavity 131 through the through hole 132 or replace the lubricating oil through the through hole 132, so that the bearing 140 is in a good lubricating state, and the maintenance of the bearing 140 is facilitated. Establish the ventilative cap 133 through adding and make the lubricating oil that is located lubricating chamber 131 unable through-hole 132 splash lubricating chamber 131 outside, also can prevent simultaneously that external environment's dust or impurity from entering into lubricating chamber 131 in, avoid because the intervention of dust or impurity reduces the lubricating property of lubricating oil, aggravate the emergence of the phenomenon of bearing 140 wearing and tearing.

Furthermore, the number of the through holes 132 is two, and of the two through holes 132, one through hole 132 is an oil inlet hole 132A, the other through hole 132 is an oil drain hole 132B, and the oil inlet hole 132A and the oil drain hole 132B may be disposed oppositely or in a staggered manner. In one example, the oil inlet hole 132A is located below the oil drain hole 132B, and when the lubricating oil is filled, the ventilation cap 133 of the oil inlet 132A is taken down, and then the lubricating oil is added from the oil inlet hole 132A; when the lubricant needs to be replaced, the vent cap 133 of the drain hole 132B is removed, and the lubricant in the lubricant chamber 131 flows out from the drain hole 132B located below. The arrangement of the oil drain hole 132B and the oil inlet hole 132A makes the addition and replacement of the lubricating oil more convenient, and further makes the maintenance of the bearing 140 more convenient.

Optionally, the ventilation cap 133 is a ventilation cap 133 made of a see-through material. The air cap 133 made of transparent material enables an operator to see through the air cap 133 to see the remaining amount of the lubricating oil in the lubricating cavity 131 without removing the air cap 133, so that whether the lubricating oil needs to be supplemented into the lubricating cavity 131 is determined according to the remaining amount of the lubricating oil, or the quality condition of the lubricating oil is observed through the air cap 133 to determine whether the lubricating oil needs to be replaced by new lubricating oil. The ventilation cap 133 made of a transparent material is additionally arranged, so that an operator can know the condition of the lubricating oil in the lubricating cavity 131 more conveniently, and the bearing 140 can be maintained conveniently.

In addition, the number of the bearings 140 is two, and the two bearings 140 are respectively located at both ends of the lubrication chamber 131. Two bearings 140 are sequentially sleeved on the rotating shaft 112, one of the bearings 140 is close to the motor body 110, and the other bearing 140 is far away from the motor body 110, so that the rotating shaft 112 is more stable in torque transmission, because only a single bearing 140 is installed on the rotating shaft 112, the rotating shaft 112 can shake greatly and unstably in rotation, and therefore, the rotating stability of the rotating shaft 112 can be effectively improved by arranging the two bearings 140 on the rotating shaft 112 at intervals, thereby avoiding the phenomenon that the bearings 140 are severely worn due to the unstable rotation of the rotating shaft 112, further prolonging the maintenance period of the bearings 140, and enabling the maintenance of the bearings 140 to be more convenient.

Further, the bearing 140 is an open deep groove ball bearing 140A. The deep groove ball bearing 140A is adopted because the deep groove ball bearing 140A has small friction resistance and high rotating speed, and can be used on a machine member bearing radial load or combined load acted simultaneously in the radial direction and the axial direction and also can be used on a machine member bearing axial load.

Optionally, the sealing structure 170 is a framework oil seal 170A, and the framework oil seal 170A is located at two ends of the bearing seat 130. The framework oil seal 170A is adopted to separate the lubricating cavity 131 from the external environment, so that the lubricating oil in the lubricating cavity 131 cannot leak; on the other hand, impurities in the external environment can be prevented from entering the lubricating cavity 131, the quality of lubricating oil is reduced, the lubrication of the bearing 140 is influenced, meanwhile, the abrasion of the bearing 140 is aggravated, and therefore the maintenance period of the bearing 140 is shortened.

According to another embodiment of the present invention, as shown in fig. 2, a fan 150 is further installed on the rotating shaft 112. The bearing assembly 120 is located between the fan 150 and the motor body 110. The fan 150 includes a plurality of blades 152, and the plurality of blades 152 are disposed at intervals along the circumferential direction of the rotating shaft 112. The plurality of fan blades 152 are arranged on the rotating shaft 112 of the motor body 110 at intervals, so that more air volume can be output under the condition of a constant rotating speed.

According to another embodiment of the present invention, a flange 160 is disposed at one end of the bearing seat 130 away from the motor body 110, and framework oil seals 170A are disposed at two ends of the flange 160, wherein one framework oil seal 170A is located at one end of the flange 160 away from the motor body 110 and is abutted against the flange 160, and an opening of the framework oil seal 170A faces to one side away from the flange 160; another frame oil seal 170A is located between the flange 160 and the bearing seat 130, and the opening of the frame oil seal 170A faces the bearing 140; one end of the bearing seat 130, which faces away from the flange 160, is provided with a framework oil seal 170A, the framework oil seal 170A is located between the bearing seat 130 and the motor body 110, and an opening of the framework oil seal 170A faces the bearing 140.

Framework oil blanket 170A of the one side that the opening orientation deviates from flange 160 place in the framework oil blanket 170A at flange 160 both ends mainly reduces the quality of lubricating oil in order to prevent that the dust from entering into lubricated chamber 131, framework oil blanket 170A and the bearing 140 butt that is located between flange 160 and the bearing frame 130, mainly be in order to prevent that lubricating oil from leaking, framework oil blanket 170A that is located between bearing frame 130 and motor body 110, this framework oil blanket 170A and bearing frame 130 butt, its opening orientation bearing 140, mainly play the sealing action, prevent that lubricating oil from leaking.

According to the utility model discloses an embodiment, because what bearing 140 adopted is open deep groove ball bearing 140A, in order to strengthen the sealed at bearing frame 130 both ends, can add between skeleton oil blanket 170A and bearing 140 and establish O type sealing washer and strengthen the sealed of bearing frame 130.

Optionally, the motor body 110 is a split type permanent magnet synchronous motor. The permanent magnet synchronous motor has advantages compared with a traditional three-phase asynchronous motor, the three-phase asynchronous motor has longer rotating shaft compared with the permanent magnet synchronous motor due to the design of the stator and the rotor, and the bearings 140 are required to be arranged at the front end and the rear end of the rotating shaft, so that the supporting and positioning effects are better achieved. Under the same power, the rotating shaft 112 of the permanent magnet synchronous motor is shorter, so that the bearing 140 does not need to be arranged at the front end and the rear end of the rotor for supporting, the bearing seat 130 is designed at one side of the rotor, the supporting function can be achieved, and the maintenance of the bearing 140 is more convenient. In addition, after the three-phase asynchronous motor is changed into the permanent magnet synchronous motor, when the same performance is met, the efficiency of the permanent magnet synchronous motor can reach more than 94%, not only in the case of full load, but also in the case of half load, the efficiency is higher than that of the three-phase asynchronous motor, and therefore after the three-phase asynchronous motor is changed into the permanent magnet synchronous motor, the energy can be saved by 15% -20%. And after the permanent magnet synchronous motor is used, the whole length and size of the motor 10 for the hot air device are effectively improved, and the occupied area of the device is smaller. In addition, due to the adoption of the split type permanent magnet synchronous motor, the split type permanent magnet synchronous motor can achieve the effect of separating and installing the stator and the rotor, has few fault points and is convenient to maintain. The integral permanent magnet synchronous motor stator and rotor are integrated, the stator and rotor are associated through the front end cover and the rear end cover and the bearing 140, the bearing 140 is arranged inside the motor body 110, observation is not convenient, the whole motor body 110 needs to be completely disassembled during maintenance, and the number of fault points is more than that of the split permanent magnet synchronous motor, so that the split permanent magnet synchronous motor is more convenient to maintain.

According to the utility model discloses an embodiment, flange 160 and bearing frame 130 butt, the other end and the motor body 110 butt of bearing frame 130 to reduce the area that is used for hot air device's motor 10.

The above is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation of the content of the specification and the attached drawings is utilized, or the direct/indirect application is included in other related technical fields in the protection scope of the present invention.

Claims

1. A motor for a hot air device is characterized by comprising a motor body and a bearing assembly;

the bearing assembly and the motor body are coaxially arranged, the bearing assembly is located on the outer side of the motor body and comprises a bearing seat and a bearing, the bearing is located inside the bearing seat, and a lubricating cavity is formed inside the bearing seat.

2. The motor for a hot air device according to claim 1, wherein both ends of the bearing housing are provided with a sealing structure, respectively.

3. The motor for a hot air device according to claim 2, wherein the sealing structure is a skeleton oil seal.

4. The motor for the hot air device as claimed in claim 3, wherein a flange is arranged at one end of the bearing seat, which is far away from the motor body, the skeleton oil seals are arranged at two ends of the flange, one of the skeleton oil seals is positioned at one end of the flange, which is far away from the bearing seat and is abutted against the flange, and the other skeleton oil seal is positioned between the flange and the bearing seat.

5. The motor for the hot air device as claimed in any one of claims 1 to 4, wherein a rotating shaft of the motor body passes through the lubrication cavity and extends out of the bearing seat, and the bearing sleeve is sleeved on the rotating shaft.

6. The motor for the hot air device as claimed in any one of claims 1 to 4, wherein a through hole for communicating the outside with the lubricating cavity is formed in a side wall of the bearing seat, and an air permeable cap is arranged at an outer end of the through hole.

7. The motor for the hot air device as claimed in claim 6, wherein the number of the through holes is two, and one of the two through holes is an oil inlet hole, and the other through hole is an oil drain hole.

8. The motor for a hot air device of claim 6, wherein the air cap is a see-through air cap.

9. The motor for the hot air device as claimed in any one of claims 1 to 4, wherein the number of the bearings is two, and the two bearings are respectively located at two ends of the lubrication cavity.

10. The motor for the hot air device according to any one of claims 1 to 4, wherein the motor body is a split type permanent magnet synchronous motor.