CN216643079U - Bearing seal and disk feeder - Google Patents

Abstract

The utility model relates to the field of sealing elements, and discloses a bearing seal and a disk feeder, wherein the bearing seal comprises: the bearing box is sleeved on a main shaft extending into the storage bin and is arranged on the bottom surface of the storage bin; the two ends of the bearing box are respectively provided with a sealing groove and a bearing groove, the sealing element is sleeved on the main shaft and is arranged in the sealing groove, the sliding bearing is sleeved on the main shaft and is arranged in the bearing groove, and the bearing gland is arranged at the lower end of the bearing box and is used for sealing the bearing groove. The rolling bearing that the main shaft that this bearing seal will have to be used for the stirring is connected changes sliding bearing into, in addition, makes this bearing seal have good sealing performance bearing capacity promotion simultaneously through the sealing member that sets up in the seal groove, and shock-resistant load promotes, and radial dimension reduces, has satisfied the equipment operation demand of more occasions.

Description

Bearing seal and disk feeder

Technical Field

The utility model relates to the field of sealing elements, in particular to a bearing seal and a disk feeder.

Background

The disc feeder is a key independent subset of two cracking agent production devices in microsphere and semisynthetic workshops of our company, the operation effect of the device directly influences the safe and stable operation of the whole device, the device has the conditions of short operation period and high failure rate in operation, great influence is caused on the normal continuous production of the device, the required time for emergency repair at each time is long, and the labor intensity is high.

The disc feeder is less than 1 month in operation, and more than 3 to 4 months, the main shaft bearing feeding and bearing clamping faults occur, and in such a situation, after a main shaft rolling bearing is clamped, the bearing runs out of an inner ring to cause the abrasion of the matching part of the main shaft and the bearing, so that the main shaft is worn and failed, meanwhile, the workload of overhauling and replacing the main shaft after the main shaft is abraded is very large, the time required by overhauling every time is more than thirty hours, and the long-time unplanned shutdown of the device is caused.

The sealing form of the main shaft bearing box of the original equipment adopts framework sealing, the bearing is two sets of 30319 angular contact rolling bearings, the requirements of the rolling bearings on the used lubricating conditions are high, once foreign matters or lubricating grease enter the rolling bearings in the using process and the rolling bearings are polluted, the rolling bearings are easy to work and lose effectiveness, and therefore the rolling bearings are not suitable for the working environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that a main shaft bearing is easy to feed and cause abrasion or blocking in the prior art, and provides a bearing seal which changes a rolling bearing connected with the existing main shaft for stirring into a sliding bearing.

In order to achieve the above object, an aspect of the present invention provides a bearing seal including: the bearing box is sleeved on a main shaft extending into the storage bin and is arranged on the bottom surface of the storage bin; the bearing box comprises a main shaft, a sealing element, a main shaft, a sliding bearing sleeve, a bearing cover and a bearing cover, wherein the two ends of the bearing box are respectively provided with a sealing groove and a bearing groove, the sealing element is sleeved on the main shaft and is arranged in the sealing groove, the sliding bearing sleeve is arranged on the main shaft and is arranged in the bearing groove, and the bearing cover is arranged at the lower end of the bearing box and is used for sealing the bearing groove.

Preferably, the outer side of the upper end of the bearing housing is formed with at least two connecting blocks protruding outwards in the radial direction, and the connecting blocks are provided with mounting holes.

Preferably, a plurality of the connecting blocks are connected to form an integrated annular structure, and a plurality of the mounting holes are arranged at equal intervals in a circumferential direction of the bearing housing.

Preferably, the sealing member is a packing seal, the sealing member is in interference fit with the main shaft, the sealing member is in interference fit with the bottom surface of the storage bin, and the sealing member is in interference fit with the inner wall of the sealing groove.

Preferably, the inner diameter of the sealing groove is gradually reduced from top to bottom and is formed in an inverted truncated cone structure.

Preferably, the side surface of the bearing box is provided with an oil cup hole which is communicated with the bearing groove and the outside.

Preferably, a steel sleeve is sleeved on the main shaft at the position of the sliding bearing, and the sliding bearing is sleeved on the steel sleeve.

Preferably, the main shaft and the steel sleeve are in shrink fit.

Preferably, the material of the sliding bearing is copper, cast iron, nylon or alloy.

The utility model provides a disc feeder, wherein the bearing seal is sleeved on a main shaft of the disc feeder, and the bearing box is detachably arranged on the bottom surface of the storage bin.

Through the technical scheme, the existing rolling bearing connected with the main shaft for stirring is changed into the sliding bearing by the bearing seal, in addition, the bearing seal has good sealing performance and simultaneously improves the bearing capacity through the sealing element arranged in the seal groove, the impact load is improved, the radial size is reduced, and the equipment operation requirements of more occasions are met.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a bearing seal;

fig. 2 is a schematic structural view of a preferred embodiment of the disk feeder.

Description of the reference numerals

1-a storage bin; 2-a main shaft; 3-a bearing housing; 4-oil cup hole; 5-a seal; 6-a plain bearing; 7-steel jacket; 8-bearing gland bush; 9-worm gear speed reducer.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless otherwise specified, the terms "upper, lower, top, bottom, far, near, side," and the like included in the terms simply represent the orientation of the terms in a conventional use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.

Referring to the bearing seal shown in fig. 1, the bearing seal comprises: the device comprises a bearing box 3, a sealing element 5, a sliding bearing 6 and a bearing gland 8, wherein the bearing box 3 is sleeved on a main shaft 2 extending into a storage bin 1 and is installed on the bottom surface of the storage bin 1; wherein, the both ends of bearing box 3 are provided with seal groove and bearing groove respectively, 5 covers of sealing member are located 2 shanks of main shaft and set up in the seal groove, 6 covers of slide bearing are located 2 shanks of main shaft and set up in the bearing groove, bearing gland 8 set up in the lower extreme of bearing box 3 is used for sealing the bearing groove.

Through the implementation of the technical scheme, the existing rolling bearing connected with the main shaft 2 for stirring is changed into the sliding bearing 6 by the bearing seal, in addition, the bearing seal has good sealing performance and simultaneously improves the bearing capacity through the sealing element 5 arranged in the seal groove, the impact load is improved, the radial size is reduced, and the equipment operation requirements of more occasions are met. During the use, assemble sealing member 5 earlier and assemble in the seal groove, with slide bearing 6 assembly at bearing inslot lid upper bearing gland 8, then establish whole cover and install bearing box 3 in the bottom surface of feed bin 1 after main shaft 2, during operation, sliding contact between main shaft 2 and the slide bearing 6 realizes sealed through setting up sealing member 5 at the upper end, can avoid feeding in the bearing box 3.

In this embodiment, in order to further provide a connection structure between the bearing housing 3 and the storage bin 1, the outer side of the upper end of the bearing housing 3 is formed with at least two connection blocks protruding outwards in the radial direction, and the connection blocks are provided with mounting holes. The connecting block is as the protruding part of upper end to both sides of bearing box 3 in attached figure 1, passes the mounting hole through the assorted bolt and installs the bottom at feed bin 1 and realize the dismantlement connection sealed to the bearing.

In this embodiment, in order to increase the connection stability between the bearing housing 3 and the cartridge 1, a plurality of the connection blocks are connected to form an integrated annular structure, and a plurality of the mounting holes are provided at equal intervals in the circumferential direction of the bearing housing 3.

In this embodiment, in order to further provide a sealing member 5, which improves the sealing effect, the sealing member 5 is a packing seal, the sealing member 5 and the main shaft 2 are in interference fit, the sealing member 5 and the bottom surface of the storage bin 1 are in interference fit, and the sealing member 5 and the inner wall of the sealing groove are in interference fit. A filler material such as rubber or engineering plastic.

In this embodiment, the inner diameter of the seal groove is gradually reduced from top to bottom and is formed in an inverted truncated cone structure. Through the structure, the sealing groove has higher supporting force for the sealing element 5, so that the sealing element 5 is more stable in use.

In this embodiment, the side surface of the bearing housing 3 is provided with a cup hole 4 communicating the bearing groove and the outside. The oil cup hole 4 can be used for periodically replenishing lubricating oil.

In this embodiment, in consideration of the factors that the sliding bearing 6 may wear the main shaft 2, the workload of replacing the main shaft 2 is large, the maintenance time is long, the cost of the main shaft 2 is high, and the like, in order to improve the service life cycle of the main shaft 2, a steel bushing 7 is sleeved on the main shaft 2 at the position of the sliding bearing 6, and the sliding bearing 6 is sleeved on the steel bushing 7. Through the arrangement, the steel sleeve 7 can protect the main shaft 2 from being abraded by the sliding bearing 6, only the steel sleeve 7 on the main shaft 2 needs to be replaced during maintenance, and the main shaft 2 does not need to be replaced.

In this embodiment, in order to increase the assembling stability between the main shaft 2 and the steel sleeve 7, a shrink fit interference fit is adopted between the main shaft 2 and the steel sleeve 7.

In this embodiment, the material of the sliding bearing 6 may be selected as needed, and the material of the sliding bearing 6 is copper, cast iron, nylon, or an alloy. According to the characteristics that the working rotating speed of the vertical disk feeder is lower and is less than 500r/min, the working part of the bearing is vertical, the radial load of the bearing is small, the radial positioning and guiding effects of bearing small radial force are achieved, the requirement on the use precision of the sliding bearing 6 is not high, the sliding bearing 6 made of cast iron can be selected, the sliding bearing 6 made of cast iron has the characteristics of economy and easiness in processing, only water and particle materials are contained in a medium, and the normal operation of the sliding bearing 6 cannot be greatly influenced.

Referring to fig. 2, the second aspect of the utility model provides a disk feeder, the main shaft 2 of the disk feeder is sleeved with the bearing seal, and the bearing box 3 is detachably mounted on the bottom surface of the storage bin 1. Disc feeder bottom is provided with worm gear speed reducer 9, and drive spindle 2 rotates, and feed bin 1 is motionless during the use, and main shaft 2 drives the rabbling mechanism in the feed bin 1 and to the material stirring, can avoid feeding in the bearing box 3 through the bearing seal that sets up, and bearing capacity promotes simultaneously, and shock-resistant load promotes, and radial dimension reduces, has satisfied the equipment operation demand of more occasions. The operation cycle of the disk feeder equipment is improved to more than 18 months.

The bearing seal effectively solves the problems of high equipment failure rate, short operation period and limitation on the capacity of the device. The main manifestations are as follows:

1. the equipment operation period is greatly prolonged to more than 18 months;

2. the failure rate of the equipment is reduced, and the unplanned shutdown of the device is reduced;

3. the failure rate of the equipment is reduced, the detection and maintenance intensity of a bench worker is greatly reduced, the safety risk of detection and maintenance is reduced, and meanwhile, the accessory cost and the detection and construction cost are saved;

4. the extension of equipment operation cycle lays a foundation for the device safety and stability long-cycle operation, and provides guarantee for improving product yield and quality.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (10)

1. A bearing seal, characterized in that said bearing seal comprises: the device comprises a bearing box (3), a sealing element (5), a sliding bearing (6) and a bearing gland (8), wherein the bearing box (3) is sleeved on a main shaft (2) extending into a storage bin (1) and is installed on the bottom surface of the storage bin (1); wherein the content of the first and second substances,

the both ends of bearing box (3) are provided with seal groove and bearing groove respectively, sealing member (5) cover is located on main shaft (2) and set up in the seal groove, slide bearing (6) cover is located on main shaft (2) and set up in the bearing groove, bearing gland (8) set up in the lower extreme of bearing box (3) is used for sealing the bearing groove.

2. The bearing seal according to claim 1, characterized in that the outer side of the upper end of the bearing housing (3) is formed with at least two connecting pieces protruding outwards in the radial direction, which connecting pieces are provided with mounting holes.

3. The bearing seal according to claim 2, characterized in that a plurality of the connecting pieces are connected to form an integral annular structure, and a plurality of the mounting holes are provided at equal intervals in a circumferential direction of the bearing housing (3).

4. The bearing seal according to claim 1, wherein the seal (5) is a packing seal, the seal (5) and the spindle (2) are in interference fit, the seal (5) and the bottom surface of the silo (1) are in interference fit, and the seal (5) and the inner wall of the seal groove are in interference fit.

5. The bearing seal of claim 4 wherein the inner diameter of the seal groove tapers from top to bottom and is formed in an inverted truncated cone configuration.

6. The bearing seal according to claim 1, characterized in that the side of the bearing housing (3) is provided with a cup hole (4) communicating the bearing groove with the outside.

7. The bearing seal according to claim 1, characterized in that a steel sleeve (7) is sleeved on the main shaft (2) at the position of the sliding bearing (6), and the sliding bearing (6) is sleeved on the steel sleeve (7).

8. The bearing seal according to claim 7, characterized in that a shrink fit is used between the spindle (2) and the steel sleeve (7).

9. Bearing seal according to claim 1, characterized in that the material of the slide bearing (6) is copper, cast iron, nylon or an alloy.

10. A disk feeder, characterized in that a main shaft (2) of the disk feeder is sleeved with the bearing seal of any one of claims 1-9, and the bearing box (3) is detachably mounted on the bottom surface of the storage bin (1).

Images