CN217713642U - Double-oil-seal cooling device for main shaft of flash dryer - Google Patents

Abstract

The utility model relates to a two oil blanket heat sink for flash dryer main shaft, the cover is equipped with two oil seals pad along the axial on flash dryer's the main shaft, the outer lane of oil seal pad and flash dryer's inside wall sealing connection, the inner circle and the main shaft sealing connection of oil seal pad, two form cooling duct between the oil seal pad, be provided with inlet port and the venthole that is linked together with cooling duct on flash dryer's the lateral wall respectively. The utility model discloses have and to cool down, improve the beneficial effect of leakproofness between the structure parts such as flash dryer main shaft and oil blanket.

Description

Double-oil seal cooling device for main shaft of flash dryer

Technical Field

The utility model relates to a flash dryer production technical field specifically indicates a two oil blanket heat sinks for flash dryer main shaft.

Background

The flash dryer heats the bottom through steam, hot air is blown into the drying tower from the drying volute through a hot air pipeline, the temperature in the main machine is 120 ℃, materials enter the drying tower, are blown up by the hot air after being scattered by a main shaft of the flash dryer main machine and rise in a suspended state, and the suspended materials are fully contacted with the hot air to complete drying instantly. The main machine main shaft scattering device is provided with a single oil seal at the lower bearing, the oil seal is damaged due to high temperature when the main shaft is heated at high temperature for a long time, materials enter the bearing, the bearing is damaged, and the main machine main shaft scattering device cannot operate, so that production is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide one kind can carry out the double oil blanket heat sink that is used for flashing dry machine main shaft that cools down to parts such as flashing dry machine main shaft and oil blanket.

The utility model discloses a through following technical scheme realizes, provides a two oil blanket heat sinks for flash dryer main shaft, and it is equipped with two oil blanket pads to overlap along the axial on the main shaft of flash dryer, set up the fixed slot with the outer lane looks adaptation of oil blanket on the inside wall of flash dryer, the outer lane of oil blanket passes through fixed slot sealing connection with the flash dryer, the inner circle and the main shaft sealing connection of oil blanket, two form the cooling duct between the oil blanket, be provided with inlet port and the venthole that is linked together with the cooling duct on the lateral wall of flash dryer respectively.

The utility model discloses in the use, establish two oil seals pads through along the axial cover on the main shaft of flash dryer, and let the outer lane of oil seal pad and the fixed slot of setting on the inside wall of flash dryer carry out sealing connection, the inner circle and the main shaft sealing connection of oil seal pad, not only can guarantee that the main shaft keeps motionless when carrying out normal rotation in the oil seal pad, can also improve the sealed effect between the structure, avoid the material piece in the flash dryer to drop on the drive bearing of main shaft lower extreme through the gap of main shaft with the oil seal pad, utilize distance between two oil seal pads to form a cooling air duct simultaneously, and be provided with inlet port and the venthole that is linked together with the cooling air duct on the lateral wall of flash dryer respectively, fill into compressed air in to the cooling air duct through the inlet hole, and discharge compressed air after the heat transfer from the venthole, can directly carry out the heat transfer to main shaft and oil seal pad part, the problem of damaging the oil seal pad because of the high temperature of main shaft has been avoided.

Preferably, the air inlet hole and the air outlet hole are arranged opposite to two sides of the flash dryer. Through setting up inlet port and venthole for the both sides of flash dryer, can make and fill into the compressed air in the cooling air duct from the inlet port, accomplish the heat transfer with main shaft and oil blanket part after, discharge the cooling air duct more quickly.

As preferred, the oil seal pad includes the hollow plectane of the horizontal rubber that sets up, the inboard one end annular of hollow plectane of rubber is provided with the rubber connecting plate along vertical direction downwardly extending, the hollow plectane outside one end annular of rubber is provided with the rubber backup pad along vertical direction downwardly extending, rubber connecting plate lower extreme annular is provided with the rubber diaphragm towards the horizontal extension of rubber backup pad direction, the rubber backup pad with the hollow plectane intussuseption of rubber is filled with integral type metal framework, it is provided with the spring coil to keep away from main shaft one side on the rubber connecting plate, the oil seal pad with the main shaft passes through spring coil fastening connection. Through setting up the oil seal gasket into the hollow plectane of rubber of a horizontal setting, and be provided with the rubber backup pad along vertical direction downwardly extending at rubber hollow plectane outside one end annular, be provided with the rubber connecting plate along vertical direction downwardly extending at rubber hollow plectane inboard one end annular, can improve the sealing performance of oil seal gasket, through be filled with integral type metal framework in rubber backup pad and the hollow plectane of rubber, not only can improve the vertical bearing capacity of oil seal gasket, can also mutually support the stability of reinforcing structure with the fixed slot, through be provided with the rubber diaphragm towards the horizontal extension of rubber backup pad direction at rubber connecting plate lower extreme, the rubber diaphragm, form a recess between rubber connecting plate and the hollow plectane, utilize the spring circle to fasten the recess, can make the rubber connecting plate laminate with the main shaft surface all the time in the rotation process of main shaft, and then strengthen the sealing performance of oil seal gasket.

Preferably, a limiting bulge extending transversely towards the rubber support plate is arranged on the groove bottom of the fixing groove. Be provided with on the tank bottom of fixed slot towards rubber support plate orientation and the horizontal spacing arch that extends, be connected through the touching between spacing arch and the rubber support plate, can strengthen the frictional force between rubber support plate and the fixed slot, avoid the main shaft to drive the oil blanket at rotatory in-process and rotate, improve the stability ability of structure.

Preferably, the inner side of the rubber connecting plate is provided with a rubber bulge which extends upwards in an inclined manner towards the main shaft direction, and the rubber bulge is arranged away from one end of the rubber transverse plate. Be provided with the rubber arch that upwards extends towards main shaft direction and slope on the inboard of rubber connecting plate, through keeping away from rubber diaphragm one end setting with the rubber arch, not only can strengthen the sealed effect of structure, can also make on the material piece landing rubber hollow circular plate through the rubber arch of slope, avoid dropping oil seal pad below and damaging the flash dryer from the gap that exists between main shaft and the oil seal pad.

The utility model has the advantages that: two oil seal pads are axially arranged on a main shaft, a fixing groove matched with the outer ring of the oil seal pad is formed in the inner side wall of a flash dryer, the outer ring of the oil seal pad is in sealing connection with the flash dryer through the fixing groove, the inner ring of the oil seal pad is in sealing connection with the main shaft, the main shaft can rotate in the oil seal pad, the oil seal pad keeps still, a cooling air channel is formed by utilizing the space between the two oil seal pads, an air inlet hole and an air outlet hole which are communicated with the cooling air channel are formed in the outer side wall of the flash dryer, compressed air is filled into the cooling air channel by utilizing the air inlet hole, the compressed air and the main shaft can exchange heat with the oil seal pad, the oil seal pad is prevented from being damaged by the overhigh temperature of the main shaft, the compressed air after heat exchange is discharged through the air outlet hole, and the air inlet hole and the air outlet hole are arranged relative to the two sides of the flash dryer, the heat exchange efficiency of the structure is improved by arranging the oil seal gasket into a rubber hollow circular plate which is transversely arranged, a rubber connecting plate which extends downwards along the vertical direction is annularly arranged at one end of the inner side of the rubber hollow circular plate, a rubber supporting plate which extends downwards along the vertical direction is annularly arranged at one end of the outer side of the rubber hollow circular plate, an integrated metal framework is filled in the rubber supporting plate and the rubber hollow circular plate, the vertical bearing capacity of the oil seal gasket can be improved, the stability of the structure is enhanced, the phenomenon that the rubber hollow circular plate is sunken downwards and slides down due to falling of scattered material fragments onto the rubber hollow circular plate is avoided, a spring ring is arranged on one side of the rubber connecting plate, which is far away from the main shaft, and the rubber connecting plate can be ensured to be always attached to the surface of the main shaft in the rotation process of the main shaft, and then the sealed effect of reinforcing structure, the annular rubber diaphragm that is provided with towards rubber backup pad orientation lateral extension at rubber connecting plate lower extreme, can avoid the spring coil to slide down and break away from the spring connecting plate, influence the stability of structure can, be provided with towards rubber backup pad orientation and lateral extension's spacing arch on the tank bottom of fixed slot, can pass through the frictional force that the touching connection produced between rubber backup pad and the spacing arch, avoid the main shaft to drive the oil blanket pad in rotatory in-process and rotate, through be provided with the rubber arch that upwards extends towards the slope of main shaft direction on the inboard of rubber connecting plate, and keep away from rubber diaphragm one end setting with the rubber arch, not only can strengthen the sealed effect between oil blanket pad and the main shaft, can also make the material piece that drops on the rubber arch through the rubber arch of slope on the hollow plectane of rubber, avoid the material piece to drop the below of oil blanket pad and damage the flash dryer from the gap that probably exists between main shaft and the oil blanket pad.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of part A in FIG. 1;

FIG. 3 is a schematic sectional view of the structure of part B in FIG. 1;

shown in the figure:

1. the flash dryer comprises a main shaft, 2, a flash dryer, 3, a spring ring, 4, a fixing groove, 5, an air inlet hole, 6, an oil seal gasket, 7, an air outlet hole, 8, a rubber protrusion, 9, a limiting protrusion, 61, a rubber hollow circular plate, 62, a rubber supporting plate, 63, a rubber transverse plate, 64 and a rubber connecting plate.

Detailed Description

In order to clearly explain the technical features of the present solution, the present solution is explained by the following detailed description.

As shown in fig. 1-fig. 3 the utility model discloses a two oil blanket heat sink for flash dryer main shaft, the main shaft 1 of flash dryer 2 goes up along the axial cover and is equipped with two oil blanket pads 6, the outer lane of oil blanket pad 6 and flash dryer 2's inside wall sealing connection, the inner circle and the main shaft 1 sealing connection of oil blanket pad 6, two form cooling duct between the oil blanket pad 6, be provided with inlet port 5 and venthole 7 that are linked together with cooling duct on flash dryer 2's the lateral wall respectively.

Set up inlet port 5 and venthole 7 for the both sides of flash dryer 2, compressed air after can assisting the heat transfer discharges, improves the heat transfer effect of device. Through setting up oil seal 6 into the hollow plectane 61 of rubber of a horizontal setting, and be provided with the rubber connecting plate 64 that extends downwards along vertical direction at the inboard one end ring shape of hollow plectane 61 of rubber, be provided with the rubber backup pad 62 that extends downwards along vertical direction at the hollow plectane 61 outside one end ring shape of rubber, pack integral type metal framework in rubber backup pad 62 and the hollow plectane 61 of rubber, can strengthen the vertical bearing capacity of oil seal 6, improve the stability of structure can, keep away from main shaft 1 one side on rubber connecting plate 64 and set up spring ring 3, fasten with main shaft 1 oil seal 6 through spring ring 3, through the annular rubber diaphragm 63 that extends towards rubber backup pad 62 direction that is provided with at rubber connecting plate 64 lower extreme, can be used for supporting spring ring 3, prevent that spring ring 3 from sliding downwards and breaking away from rubber connecting plate 64. Through be provided with the spacing arch 9 towards rubber support plate 62 direction and horizontal extension on the tank bottom at fixed slot 4, extrude fixedly to spacing arch 9 through rubber support plate 62, utilize the frictional force between rubber support plate 62 and the spacing arch 9, avoid main shaft 1 to drive oil blanket 6 in rotatory process and rotate. By arranging the rubber protrusion 8 extending upwards in an inclined manner towards the direction of the main shaft 1 on the inner side of the rubber connecting plate 64 and arranging the rubber protrusion 8 away from one end of the rubber transverse plate 63, not only can the sealing effect between the structures be enhanced, but also material scraps falling on the rubber protrusion 8 can be made to slide onto the rubber hollow circular plate 61 through the inclined rubber protrusion 8.

With reference to the attached drawings 1-3, the use method of the utility model is as follows: firstly, two oil seal pads 6 are axially sleeved on a main shaft 1, so that the inner space of a flash dryer 2 is divided into an upper sealed space region and a lower sealed space region, the lower end of the main shaft 1 is positioned in the space below and is connected with a driving bearing in the flash dryer 2, the upper end of the main shaft 1 is positioned in the space above and is used for scattering materials in the flash dryer 2, the flash dryer 2 can generate a large amount of heat in the working process to quickly dry the scattered materials, but the temperature of the main shaft 1 can be increased to damage the oil seal pads 6, compressed air is filled into a cooling air duct between the two oil seal pads 6 through an air inlet 5, the main shaft 1 in the flash dryer 2 is subjected to heat exchange, the compressed air subjected to the heat exchange is discharged through an air outlet 7, the temperature of the main shaft 1 can be reduced, and the phenomenon that the temperature of the main shaft 1 is too high to damage the oil seal pads 6 is avoided.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should not depart from the spirit of the present invention, and shall also belong to the protection scope of the claims of the present invention.

Claims (5)

1. The utility model provides a two oil blanket heat sink for flash dryer main shaft which characterized in that: the main shaft (1) of flash dryer (2) is gone up and is equipped with two oil seal pads (6) along the axial cover, set up on the inside wall of flash dryer (2) with fixed slot (4) of the outer lane looks adaptation of oil seal pad (6), the outer lane of oil seal pad (6) passes through fixed slot (4) sealing connection with flash dryer (2), the inner circle and main shaft (1) sealing connection of oil seal pad (6), two form cooling duct between oil seal pad (6), be provided with inlet port (5) and venthole (7) that are linked together with cooling duct on the lateral wall of flash dryer (2) respectively.

2. The dual oil seal cooling device for the flash dryer main shaft according to claim 1, characterized in that: the air inlet hole (5) and the air outlet hole (7) are arranged relative to two sides of the flash dryer (2).

3. The dual oil seal cooling device for the flash dryer main shaft according to claim 1, characterized in that: oil blanket (6) are including a horizontal rubber hollow circular plate (61) that sets up, rubber hollow circular plate (61) inboard one end annular is provided with along vertical direction downwardly extending's rubber connecting plate (64), rubber hollow circular plate (61) outside one end annular is provided with along vertical direction downwardly extending's rubber backup pad (62), rubber connecting plate (64) lower extreme annular is provided with towards rubber backup pad (62) horizontal rubber diaphragm (63) that extend of direction, rubber backup pad (62) with rubber hollow circular plate (61) intussuseption is filled with integral type metal framework, it is provided with spring coil (3) to keep away from main shaft (1) one side on rubber connecting plate (64), oil blanket (6) with main shaft (1) is through spring coil (3) fastening connection.

4. The dual oil seal cooling device for the flash dryer main shaft according to claim 3, characterized in that: and a limiting bulge (9) transversely extending towards the direction of the rubber supporting plate (62) is arranged on the bottom of the fixed groove (4).

5. The dual oil seal cooling device for the flash dryer main shaft according to claim 3, characterized in that: the inner side of the rubber connecting plate (64) is provided with a rubber bulge (8) which extends upwards in an inclined mode towards the direction of the main shaft (1), and one end, far away from the rubber transverse plate (63), of the rubber bulge (8) is arranged.

Images