CN215823630U

CN215823630U - Slewing mechanism, vibration exciter and screening plant

Info

Publication number: CN215823630U
Application number: CN202120296643.0U
Authority: CN
Inventors: 欧超林; 尚兴吉
Original assignee: Shaoguan Xinrui Intelligent Equipment Co ltd
Current assignee: Shaoguan Xinrui Intelligent Equipment Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-02-15
Anticipated expiration: 2031-02-02

Abstract

The utility model belongs to the technical field of vibrating equipment, a slewing mechanism, vibration exciter and screening plant is provided, slewing mechanism includes the pivot, the oil slinger, end cover and first sealing member, the oil slinger is fixedly overlapped and is located in the pivot and the outer wall face of oil slinger sets up towards the axis direction slope of pivot and forms the oil slinger face, the end cover includes the lid and locates the sleeve pipe that just runs through the lid on the lid, the sleeve pipe cover is located in the pivot and with pivot clearance fit, the sleeve pipe is close to the terminal surface slope setting of oil slinger and forms the oil extraction clearance with the relative separation of oil slinger face of oil slinger, first sealing member is located between sleeve pipe and the pivot. The application provides a slewing mechanism has good sealing performance, can effectively reduce the maintenance frequency of equipment and reduce the risk that the vibration exciter causes the damage because of lubricated badly.

Description

Slewing mechanism, vibration exciter and screening plant

Technical Field

The application relates to the technical field of vibration equipment, in particular to a rotating mechanism, a vibration exciter and a screening device.

Background

The screening device is widely applied to industries such as coal, building, electric power, chemical engineering and the like, and for a large-scale screening device, a bearing of a vibration exciter is generally lubricated by oil, namely, a bearing part is immersed in lubricating oil, then the lubricating oil is brought into other parts of the bearing after the bearing operates so as to achieve the purpose of lubrication, and the lubricating mode has higher requirement on the sealing performance of the shaft end of the vibration exciter. At present, shaft ends of vibration exciters in the market are generally sealed only by adopting contact type sealing modes such as a framework oil seal or a felt ring, and when the shaft runs at a high speed, the framework oil seal or the felt ring is easy to wear to cause a large amount of leakage of lubricating oil, so that the vibration exciters need to be frequently supplemented with oil, and the bearings of the vibration exciters are easy to be damaged due to poor lubrication.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a slewing mechanism, vibration exciter and screening plant to the sealing performance of the rotation position of the vibration exciter that exists among the solution prior art is poor, appears the technical problem of the condition of lubricating oil leakage easily.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides an slewing mechanism, slewing mechanism includes pivot, oil slinger, end cover and first sealing member, the oil slinger is fixedly located the cover is fixed in the pivot just the outer wall face of oil slinger is towards the axis direction slope of pivot sets up and forms the oil slinger face, the end cover includes the lid and locates on the lid and run through the sleeve pipe of lid, the sleeve pipe cover is located in the pivot and with commentaries on classics, axle clearance fit, the sleeve pipe is close to the terminal surface slope of oil slinger set up and with the oil slinger face relative separation forms the oil extraction clearance, first sealing member is located the sleeve pipe with between the pivot.

In one embodiment, the rotating shaft includes a shaft body and a first shaft sleeve fixedly sleeved on the shaft body, and the first sealing element is sleeved on the first shaft sleeve.

In one embodiment, the rotating mechanism further includes a second sealing member disposed between the shaft body and the first sleeve.

In one embodiment, the rotating mechanism further includes a third sealing element and a bearing assembly, the bearing assembly includes a bearing sleeved on the rotating shaft and a bearing seat for mounting the bearing, the cover is connected with the bearing seat, and the third sealing element abuts against between the bearing seat and the cover.

In one embodiment, the rotating mechanism further includes a fourth seal and a second sleeve, the second sleeve is fixedly sleeved on the rotating shaft and located on a side of the end cover facing away from the oil slinger, and the fourth seal abuts between the end cover and the second sleeve.

In one embodiment, the fourth seal is a VD-type seal.

In one embodiment, the first seal is a backbone oil seal.

In one embodiment, the rotating mechanism includes a plurality of the first sealing members, and the first sealing members are sequentially arranged along the axis of the rotating shaft.

In order to achieve the above object, the present application further provides an exciter, wherein the rotating mechanism includes a plurality of first sealing members, and each of the first sealing members is sequentially arranged along an axis of the rotating shaft.

In order to achieve the purpose, the application also provides a screening device which comprises the vibration exciter.

The application provides a slewing mechanism, vibration exciter and screening plant's beneficial effect lies in: compared with the prior art, the rotating mechanism provided by the application has the advantages that when the rotating shaft rotates at a high speed, the lubricating oil is thrown out to the periphery in a splashing manner, and when the lubricating oil drops onto the oil throwing surface of the oil throwing ring, the lubricating oil is thrown out of the oil throwing surface onto the end surface of the sleeve and is discharged outwards along the oil discharge gap under the action of centrifugal inertia, so that the lubricating oil can be effectively prevented from entering the gap between the rotating shaft and the end cover; meanwhile, when the liquid level of the lubricating oil is in contact with the oil slinger, the oil slinger can be effectively prevented from scraping the lubricating oil into an oil discharge gap by inclining the oil slinger towards the axial direction of the rotating shaft; in addition, the first sealing element is arranged between the rotating shaft and the sleeve, so that the lubricating oil can be effectively prevented from leaking outwards from the gap between the rotating shaft and the sleeve; therefore, the rotating mechanism has good sealing performance, the maintenance frequency of equipment can be effectively reduced, and the risk of damage to the vibration exciter due to poor lubrication is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a rotating mechanism provided in an embodiment of the present application;

fig. 2 is a partially enlarged view of the rotating mechanism shown in fig. 1 at a.

Wherein, in the figures, the respective reference numerals:

100-a rotation mechanism; 110-a rotating shaft; 111-shaft body; 112-a first sleeve; 120-oil slinger; 121-oil throwing level; 130-an end cap; 131-a cover body; 132-a cannula; 1321-end face; 1322-a first mounting groove; 1323-a second mounting groove; 140-a first seal; 150-oil drain gap; 160-a second seal; 170-a third seal; 180-a bearing assembly; 181-a bearing; 182-a bearing seat; 190-a fourth seal; 200-a second bushing; 300-sheath.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2, a rotating mechanism provided in an embodiment of the present application will now be described. The rotating mechanism 100 includes a rotating shaft 110, an oil slinger 120, an end cover 130 and a first sealing element 140, the oil slinger 120 is fixedly sleeved on the rotating shaft 110, an outer wall surface of the oil slinger 120 is inclined toward an axial direction of the rotating shaft 110 to form an oil slinger surface 121, the end cover 130 includes a cover 131 and a sleeve 132 disposed on the cover 131 and penetrating through the cover 131, the sleeve 132 is sleeved on the rotating shaft 110 and is in clearance fit with the rotating shaft 110, the sleeve 132 is inclined near an end surface 1321 of the oil slinger 120 and is relatively spaced from the oil slinger surface 121 of the oil slinger 120 to form an oil discharge clearance 150, and the first sealing element 140 is disposed between the sleeve 132 and the rotating shaft 110.

It should be noted that the oil slinger 120 can be connected to the rotating shaft 110 in various ways, such as by a key connection or an interference fit, which is not limited herein.

Compared with the prior art, in the rotating mechanism 100 provided by the present application, when the rotating shaft 110 rotates at a high speed, the lubricating oil is thrown around in a splash-like manner, and when the lubricating oil drops onto the oil throwing surface 121 of the oil slinger 120, the lubricating oil is thrown from the oil throwing surface 121 onto the end surface 1321 of the sleeve 132 and is discharged outwards along the oil discharge gap 150 under the centrifugal inertia effect, so that the lubricating oil can be effectively prevented from entering the gap between the rotating shaft 110 and the end cover 130; meanwhile, when the liquid level of the lubricating oil contacts with the oil slinger 120, the oil slinger 120 can be effectively prevented from scraping the lubricating oil into the oil discharge gap 150 by obliquely arranging the oil slinger surface 121 towards the axial direction of the rotating shaft 110; in addition, the first sealing member 140 is disposed between the rotating shaft 110 and the sleeve 132, so that the lubricating oil can be effectively prevented from leaking out from the gap between the rotating shaft 110 and the sleeve 132; it can be seen that the rotating mechanism 100 has good sealing performance, and can effectively reduce the maintenance frequency of the equipment and reduce the risk of damage to the vibration exciter due to poor lubrication.

In another embodiment of the present application, referring to fig. 2, the rotating shaft 110 includes a shaft body 111 and a first shaft sleeve 112 fixedly sleeved on the shaft body 111, and the first sealing member 140 is sleeved on the first shaft sleeve 112.

It should be noted that the inner wall of the sleeve 132 of the end cover 130 is formed with a first installation groove 1322, and the first sealing element 140 is disposed in the first installation groove 1322.

In the rotating mechanism 100 provided by this embodiment, the first sealing element 140 of the rotating mechanism 100 can prevent the lubricant entering the oil discharge gap 150 from leaking from the gap between the end cover 130 and the first shaft sleeve 112, and the first sealing element 140 is sleeved on the first shaft sleeve 112, when the rotating mechanism 100 operates, the first sealing element 140 and the first shaft sleeve 112 rotate at a relatively high speed, so as to effectively protect the shaft body 111, after a long time operation, when the first shaft sleeve 112 is worn, only the first shaft sleeve 112 needs to be replaced, thereby avoiding the whole replacement of the shaft 110, and reducing the equipment maintenance cost.

In another embodiment of the present application, referring to fig. 2, the rotating mechanism 100 further includes a second sealing member 160, and the second sealing member 160 is disposed between the shaft body 111 and the first sleeve 112. In a specific embodiment, the second seal 160 may be an O-ring seal, and with the slewing mechanism 100 configured as described above, it is possible to prevent the lubricating oil from leaking from the gap between the shaft body 111 and the first sleeve 112, and to further improve the sealing performance of the slewing mechanism 100.

In another embodiment of the present application, referring to fig. 1 and fig. 2, the rotating mechanism 100 further includes a third sealing member 170 and a bearing assembly 180, the bearing assembly 180 includes a bearing 181 sleeved on the rotating shaft 110 and a bearing seat 182 for mounting the bearing 181, the cover 131 of the end cover 130 is connected to the bearing seat 182, and the third sealing member 170 abuts between the bearing seat 182 and the cover 131. With the above-described configuration of the rotating mechanism 100, leakage of the lubricating oil from the gap between the end cover 130 and the bearing seat 182 can be prevented, and the sealing performance of the rotating mechanism 100 can be further improved.

In another embodiment of the present application, referring to fig. 1 and fig. 2, the rotating mechanism 100 further includes a fourth seal 190 and a second sleeve 200, the second sleeve 200 is fixedly sleeved on the rotating shaft 110 and is located on a side of the end cover 130 away from the oil slinger 120, and the fourth seal 190 abuts between the end cover 130 and the second sleeve 200.

Specifically, the fourth seal 190 is a VD-type seal.

It is noted that the sleeve 132 is provided with a second mounting slot 1323 on the side facing away from the oil slinger 120, in which second mounting slot 1323 the fourth seal 190 is mounted.

In the rotating mechanism 100 provided in this embodiment, the VD-type sealing element can prevent dust and impurities from entering the first installation groove 1322 to destroy the sealing function of the first sealing element 140, so as to achieve the end face sealing function and achieve a good sealing effect.

In another embodiment of the present application, referring to fig. 2, the first sealing element 140 is a skeleton oil seal, and an oil film is formed at the matching position of the skeleton oil seal and the rotating shaft 110, so as to prevent the lubricating oil passing through the oil discharge gap 150 between the oil slinger 120 and the end cover 130 from leaking.

The type of the first sealing member includes various types, such as an inner package frame oil seal, a fabricated frame oil seal, and the like, and is not particularly limited herein.

In another embodiment of the present application, referring to fig. 2, the rotating mechanism 100 includes a plurality of first sealing members 140, and each first sealing member 140 is sequentially arranged along the axis of the rotating shaft 110.

It should be noted that the first sealing member 140 may be one, two, etc., and may be disposed as needed, which is not limited herein. By adopting the rotating mechanism 100 with the structure, an oil film is formed between each first sealing element 140 and the rotating shaft 110, so that a plurality of seals are formed between the rotating shaft 110 and the end cover 130, and the sealing effect is good.

The embodiment of the present application further provides a vibration exciter, and the vibration exciter includes the above-mentioned rotating mechanism 100.

Since the vibration exciter adopts all embodiments of the rotating mechanism 100, at least all the advantages of the embodiments are achieved, and no further description is provided herein.

Referring to fig. 1, as a specific embodiment, the rotation mechanism 100 of the vibration exciter includes a bearing 181 and a bearing seat 182, one side of the bearing seat 182 away from the end cap 130 is connected to a sheath 300 sleeved on the periphery of the rotation shaft 110, and the bottoms of the sheath 300, the bearing seat 181 and the end cap 130 contain lubricating oil, so that the lubricating effect on the bearing 181 is good, the service life of the bearing 181 is prolonged, and the loss of the lubricating oil is small.

The embodiment of the present application further provides a screening device, which includes the vibration exciter disclosed in the above embodiment, so that at least all the advantages of the above embodiment are achieved, and no further description is provided herein.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A kind of slewing mechanism, its characterized in that: the slewing mechanism includes pivot, oil slinger, end cover and first sealing member, the oil slinger is fixedly located to the cover the pivot just the outer wall face of oil slinger court the axis direction slope of pivot sets up and forms the oil slinger face, the end cover includes the lid and locates on the lid and run through the sleeve pipe of lid, the sleeve pipe cover is located in the pivot and with pivot clearance fit, the sleeve pipe is close to the terminal surface slope setting of oil slinger and with the oil slinger face phase separation forms the oil extraction clearance, first sealing member is located the sleeve pipe with between the pivot.

2. The rotation mechanism of claim 1, wherein: the rotating shaft comprises a shaft body and a first shaft sleeve fixedly sleeved on the shaft body, and the first sealing element is sleeved on the first shaft sleeve.

3. The rotation mechanism of claim 2, wherein: the rotating mechanism further comprises a second sealing element, and the second sealing element is arranged between the shaft body and the first shaft sleeve.

4. The rotation mechanism of claim 1, wherein: the rotating mechanism further comprises a third sealing element and a bearing assembly, the bearing assembly comprises a bearing sleeved on the rotating shaft and a bearing seat used for mounting the bearing, the cover body is connected with the bearing seat, and the third sealing element is abutted between the bearing seat and the cover body.

5. The rotation mechanism of claim 1, wherein: the rotating mechanism further comprises a fourth sealing element and a second shaft sleeve, the second shaft sleeve is fixedly sleeved on the rotating shaft and is positioned on one side, away from the oil slinger, of the end cover, and the fourth sealing element is abutted between the end cover and the second shaft sleeve.

6. The rotation mechanism of claim 5, wherein: the fourth seal is a VD type seal.

7. The rotating mechanism according to any one of claims 1 to 6, wherein: the first sealing element is a framework oil seal.

8. The rotating mechanism according to any one of claims 1 to 6, wherein: the rotating mechanism comprises a plurality of first sealing pieces, and the first sealing pieces are sequentially arranged along the axis of the rotating shaft.

9. A vibration exciter is characterized in that: comprising a turning gear according to any of the claims 1-8.

10. A screening device, characterized in that: comprising an exciter according to claim 9.