CN210735318U

CN210735318U - Discharging type tail bearing for screw conveyor

Info

Publication number: CN210735318U
Application number: CN201921610548.2U
Authority: CN
Inventors: 唐志雄; 王永成; 唐金良
Original assignee: Zhuhai Huigao Machinery Equipment Co ltd
Current assignee: Zhuhai Huigao Machinery Equipment Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-06-12
Anticipated expiration: 2029-09-26

Abstract

The utility model provides a discharge type tail bearing for screw conveyer, include: the bearing seat comprises an inner bearing support, an outer connecting flange and connecting columns, the inner bearing support and the outer connecting flange are concentrically arranged, the inner bearing support and the outer connecting flange are connected through the connecting columns, and a discharging channel is formed in a gap between the inner bearing support and the outer connecting flange; the deep groove ball bearing is fixed in the inner bearing support; the thrust ball bearing is fixed in the inner bearing support and is positioned behind the deep groove ball bearing; one end of the bearing main shaft extends into the inner bearing support and is sleeved in the thrust ball bearing and the deep groove ball bearing in an interference fit manner; the framework oil seal is arranged at the clearance between the bearing main shaft and the inner bearing support. This screw conveyer ejection of compact formula tail bearing structural design is ingenious, and the assembly is easy, adopts the entire body formula structure, leads to the putty phenomenon when can effectively preventing the lateral transportation material.

Description

Discharging type tail bearing for screw conveyor

Technical Field

The utility model relates to a bearing technical field, concretely relates to ejection of compact formula tail bearing for screw conveyer.

Background

When the screw conveyor works, the driving motor is utilized to push the speed reducer, and the speed reducer drives the screw conveying mandrel blade to convey the powdery material from a low position to a high position. According to different working conditions, the heights of conveyed materials are different, the selected angles are different, and a horizontal elevation angle of 0-45 degrees is adopted in a common general screw conveyor. In special application, the horizontal screw conveyor and the vertical screw conveyor are combined in a relay mode (as shown in figure 1), the horizontal screw conveyor and the vertical screw conveyor work continuously for a long time, and the horizontal screw conveyor and the vertical screw conveyor also work intermittently and frequently, for example, the horizontal screw conveyor and the vertical screw conveyor are influenced by temperature and humidity, and the spiral conveyor sometimes blocks in a pipe and the like, so that the spiral conveyor is easy to be blocked, blocked and the like. Once a fault occurs, the fault reason needs to be found out, and meanwhile, the powdery material in the spiral conveyor needs to be cleaned, so that the discharging structure of the vertical spiral conveyor is more complicated than that of a common spiral.

At present, a tail bearing structure commonly adopted on a vertical screw conveyor is shown in fig. 2 and comprises a main shaft 100, a tail bearing seat 200, a tail bearing cover 300, a bearing and a sealing element 400, wherein the tail bearing plays a role in supporting and rotating, and when a horizontal screw conveyor conveys powdery materials to a joint, the materials are extruded to be lifted to a discharge hole for blanking by the vertical screw conveyor under the high-speed rotation of a motor. However, when the tail bearing with the structure of the horizontal screw conveyor transversely conveys materials, extrusion is easily formed at the tail bearing, and the phenomenon of material blockage occurs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a discharge type tail bearing for screw conveyer, when horizontal screw conveyer transported substance material, the ejection of compact of tail bearing butt joint department is smooth and easy, can prevent material jam.

In order to realize the technical scheme, the utility model provides a discharging type tail bearing for screw conveyer, include: the bearing seat comprises an inner bearing support, an outer connecting flange and connecting columns, the inner bearing support and the outer connecting flange are concentrically arranged, the inner bearing support and the outer connecting flange are connected through the connecting columns, and a discharging channel is formed in a gap between the inner bearing support and the outer connecting flange; the deep groove ball bearing is fixed in the inner bearing support; the thrust ball bearing is fixed in the inner bearing support and positioned behind the deep groove ball bearing, and the thrust ball bearing and the deep groove ball bearing are coaxially arranged; one end of the bearing main shaft extends into the inner bearing support and is sleeved in the thrust ball bearing and the deep groove ball bearing in a clearance fit manner; the bearing cover is fixed at the side end of the inner bearing support through a bolt and seals one end of the bearing main shaft in the inner bearing support; and the framework oil seal is arranged at the clearance between the bearing main shaft and the inner bearing support.

In the technical scheme, during concrete installation, this ejection of compact formula tail bearing installs the afterbody at horizontal screw conveyer, flange and this ejection of compact formula tail bearing upper bearing seat's outer flange joint is passed through to vertical screw conveyer's one end, concrete during operation, the material passes through horizontal screw conveyer and carries to this ejection of compact formula tail bearing department, direct through forming discharging channel by the space between inner bearing support and the outer flange and get into to vertical screw conveyer in under the effect of material motion inertia, the putty phenomenon appears when can effectively preventing the lateral transfer material.

Preferably, a felt ash seal is further arranged at a gap where the bearing main shaft is matched with the inner bearing support, so that the sealing performance of the matched position of the bearing main shaft and the inner bearing support can be enhanced.

Preferably, a Teflon gasket is arranged at the contact position of the felt ash seal and the inner bearing support, so that the sealing performance of the contact position of the felt ash seal and the inner bearing support is further enhanced.

Preferably, the inner bearing support and the outer connecting flange are connected through three connecting columns which are distributed at 120 degrees, oil filling channels are arranged in the two connecting columns, and grease nipples are arranged at the outer ports of the oil filling channels, so that oil filling lubrication of deep groove ball bearings and thrust ball bearings which are installed in the inner bearing support is facilitated.

Preferably, a plurality of outer screw holes are uniformly formed in the outer connecting flange, so that the outer connecting flange can be rapidly butted with the outer flange.

The utility model provides a pair of ejection of compact formula tail bearing for screw conveyer's beneficial effect lies in:

(1) this discharging type tail bearing structure for screw conveyer design benefit, adopt whole body formula structure, be connected through the spliced pole between interior bearing support and the outer flange and form discharging channel in space department, the material passes through horizontal screw conveyer and carries to this discharging type tail bearing department, directly form discharging channel through the space by between interior bearing support and the outer flange under the inertial effect of material motion and get into to perpendicular screw conveyer in, can effectively prevent to lead to the tail bearing to appear the putty phenomenon during the lateral transportation material.

(2) The discharge type tail bearing for the screw conveyor adopts a transmission structure of the deep groove ball bearing and the thrust ball bearing, the friction coefficient is small when the main shaft rotates, the transverse runout is small, and the transmission efficiency is high.

Drawings

Fig. 1 is a schematic assembly view of a conventional horizontal screw conveyor and vertical screw conveyor combined transmission.

Fig. 2 is a schematic structural view of a conventional horizontal screw conveyor tail bearing.

Fig. 3 is a schematic view of the installation of the discharging tail bearing for the screw conveyor in the combination of the horizontal screw conveyor and the vertical screw conveyor.

Fig. 4 is a front view of the discharging tail bearing for the screw conveyor.

Fig. 5 is a sectional view of the discharging tail bearing for the screw conveyor.

Fig. 6 is a schematic structural diagram of a bearing seat in the discharging tail bearing for the screw conveyor.

In the figure: 1. a grease nipple; 2. a bearing seat; 21. an inner bearing support; 22. an outer connecting flange; 23. connecting columns; 24. an oil injection channel; 25. an inner threaded hole; 26. an outer screw hole; 3. a deep groove ball bearing; 4. framework oil seal; 5. performing ash sealing by using felt; 6. a Teflon gasket; 7. a bearing spindle; 8. a thrust ball bearing; 9. a bolt; 10. and a bearing cover.

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. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.

Example (b): a discharge type tail bearing for a screw conveyor.

Referring to fig. 3 to 6, a discharging tail bearing for a screw conveyor includes:

the bearing seat 2 comprises an inner bearing support 21, an outer connecting flange 22 and connecting columns 23, wherein the inner bearing support 21 and the outer connecting flange 22 are arranged concentrically, the inner bearing support 21 and the outer connecting flange 22 are connected through the three connecting columns 23 distributed at 120 degrees, oil filling channels 24 are arranged in the two connecting columns 23, grease nipples 1 are arranged at the outer ports of the oil filling channels 24, so that oil can be conveniently filled and lubricated for the deep groove ball bearings 3 and the thrust ball bearings 8 which are arranged in the inner bearing support 21, a discharge channel is formed by annular gaps between the inner bearing support 21 and the outer connecting flange 22, a plurality of outer screw holes 26 are uniformly arranged on the outer connecting flange 22, so that the outer connecting flange can be rapidly connected with the outer flange, and a plurality of uniformly distributed inner screw holes 25 are arranged on the front side surface of the inner bearing support 21, so that the inner bearing support can be conveniently connected with the bearing cover 10;

the deep groove ball bearing 3 is fixed in the inner bearing support 21, and the deep groove ball bearing 3 is used for reducing the friction force when the bearing main shaft 7 rotates;

the thrust ball bearing 8 is fixed in the inner bearing support 21 and is positioned behind the deep groove ball bearing 3, and the thrust ball bearing 8 and the deep groove ball bearing 3 are coaxially arranged;

one end of the bearing main shaft 7 extends into the inner bearing support 21 and is sleeved in the thrust ball bearing 8 and the deep groove ball bearing 3 in an interference fit manner, a transmission structure of the deep groove ball bearing 3 and the thrust ball bearing 8 is adopted, so that the friction coefficient and transverse runout of the bearing main shaft 7 during rotation can be reduced, and the transmission efficiency is high;

the bearing cover 10 is fixed at the side end of the inner bearing support 21 through a bolt 9, and one end of the bearing main shaft 7 is sealed in the inner bearing support 21;

the structure comprises a framework oil seal 4, the framework oil seal 4 is arranged at a gap between a bearing main shaft 7 and an inner bearing support 21 to enhance the sealing performance of the gap between the bearing main shaft 7 and the inner bearing support 21, a felt ash seal 5 is further arranged at the gap between the bearing main shaft 7 and the inner bearing support 21 to enhance the sealing performance of the gap between the bearing main shaft 7 and the inner bearing support 21, a Teflon gasket 6 is arranged at the contact between the felt ash seal 5 and the inner bearing support 21, and the sealing performance of the contact between the felt ash seal 5 and the inner bearing support 21 is further enhanced.

Referring to fig. 3, during specific installation, the discharging tail bearing 20 is installed at the tail of the horizontal screw conveyer, one end of the vertical screw conveyer is connected with the outer connecting flange 22 of the bearing seat 2 on the discharging tail bearing 20 through the connecting flange, during specific operation, materials are conveyed to the discharging tail bearing 20 through the horizontal screw conveyer, under the action of inertia of material movement, the materials directly form a discharging channel through an annular gap between the inner bearing support 21 and the outer connecting flange 22 and enter the vertical screw conveyer, and the phenomenon of material blockage during transverse conveying of the materials can be effectively prevented.

The discharging type tail bearing for the screw conveyor is simple in structure and easy to assemble, adopts the transmission structure of the deep groove ball bearing 3 and the thrust ball bearing 8, and is small in friction coefficient, small in transverse jumping and high in transmission efficiency when a main shaft rotates. This ejection of compact formula tail bearing for screw conveyer structural design benefit, adopt whole body formula structure, be connected through spliced pole 23 between inner bearing support 21 and the outer flange 22 and form discharging channel in space department, the material passes through horizontal screw conveyer and carries to this ejection of compact formula tail bearing department, directly form discharging channel through the space by between inner bearing support and the outer flange under the inertial effect of material motion and get into to perpendicular screw conveyer in, lead to the tail bearing to appear the putty phenomenon when can effectively preventing the lateral transfer material.

The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a discharge type tail bearing for screw conveyer which characterized in that includes:

the bearing seat comprises an inner bearing support, an outer connecting flange and connecting columns, the inner bearing support and the outer connecting flange are concentrically arranged, the inner bearing support and the outer connecting flange are connected through the connecting columns, and a discharging channel is formed in a gap between the inner bearing support and the outer connecting flange;

the deep groove ball bearing is fixed in the inner bearing support;

the thrust ball bearing is fixed in the inner bearing support and positioned behind the deep groove ball bearing, and the thrust ball bearing and the deep groove ball bearing are coaxially arranged;

one end of the bearing main shaft extends into the inner bearing support and is sleeved in the thrust ball bearing and the deep groove ball bearing in an interference fit manner;

the bearing cover is fixed at the side end of the inner bearing support through a bolt and seals one end of the bearing main shaft in the inner bearing support;

and the framework oil seal is arranged at the clearance between the bearing main shaft and the inner bearing support.

2. The discharge tail bearing for screw conveyors of claim 1, wherein: and a felt ash seal is further arranged at the gap between the bearing main shaft and the inner bearing support.

3. The discharge tail bearing for screw conveyors of claim 2, wherein: and a Teflon gasket is arranged at the contact position of the felt ash seal and the inner bearing support.

4. The discharge tail bearing for screw conveyors of claim 1, wherein: the inner bearing support and the outer connecting flange are connected through three connecting columns which are distributed at 120 degrees, oil filling channels are arranged in the two connecting columns, and grease nozzles are arranged at the outer ports of the oil filling channels.

5. The discharge tail bearing for screw conveyors of claim 1, wherein: a plurality of outer screw holes are uniformly formed in the outer connecting flange.