Sealing device for riding wheel bearing seat of drying machine

Abstract

The utility model relates to the technical field of bearing seat sealing, in particular to a drying machine riding wheel bearing seat sealing device which comprises a main shaft, a roller face is sleeved in the middle of the peripheral side wall of the main shaft, shaft rings are sleeved on the symmetrical positions of the two sides of the peripheral side wall of the main shaft with the roller face as the center, and oil seal rings are sleeved on the symmetrical positions of the two sides of the peripheral side wall of the main shaft with the roller face as the center. Bearing seats are detachably arranged on the symmetrical positions of the two sides, with the roller face as the center, of the peripheral side wall of the main shaft in a sleeving mode, and the two bearing seats are located on the sides, away from the roller face, of the corresponding oil seal rings correspondingly. Lubricating water which penetrates through the shaft ring and still flows along the main shaft isolates a channel which continues to flow towards the bearing seat under the action of the oil seal rings on the two sides, so that the amount of the lubricating water which flows along the main shaft and enters the bearing seat is reduced to the maximum extent, the problem of lubricating grease emulsification caused by intervention of the lubricating water is avoided to the maximum extent, and the service life of the bearing seat is prolonged. Therefore, the lubricating effect of the lubricating grease on the bearing seat is ensured, the abrasion of the bearing seat is reduced, and the service life of the bearing seat is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seat sealing, in particular to a drying machine supporting wheel bearing seat sealing device. Background Art

[0002] The dryer in the pelletizing workshop can not only mix but also dry and dehydrate, so that the components of the pelletizing mixture are evenly mixed and the moisture content is appropriate. The main machine specifications of the dryer are 3.4x25m, and its processing capacity is 180-200t / h. The cylinder speed is generally maintained at 3.3r / min. The cylinder is arranged downstream with an inclination of 5%. The lower supporting wheel of the dryer, which is the main structure, is subjected to large rotation force and is installed at an angle. Since the roller surface of the dryer supporting wheel is water-lubricated, the lubricating water will be brought into the bearing seat when the supporting wheel rotates, which makes the grease in the bearing seat easy to emulsify, affecting the lubricating effect of the grease on the bearing seat, resulting in large wear of the bearing seat, or even direct damage.

[0003] Therefore, it is necessary to invent a drying machine support roller bearing seat sealing device to solve the above problems. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a sealing device for the bearing seat of a dryer roller, which solves the problem that the lower roller of the dryer in the prior art is subjected to large rotational force and is installed at an angle, and since the roller surface of the dryer roller is water-lubricated, the lubricating water will be brought into the bearing seat when the roller rotates, which causes the grease in the bearing seat to be easily emulsified, affecting the lubricating effect of the grease on the bearing seat, thereby causing large wear of the bearing seat and even direct damage.

[0005] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0006] A sealing device for a bearing seat of a dryer supporting roller comprises a main shaft capable of driving a lower supporting roller of the dryer to rotate, a roller surface being sleeved on the middle part of a circumferential side wall of the main shaft, shaft rings capable of blocking and throwing out water flow being sleeved on two symmetrical positions on both sides of the circumferential side wall of the main shaft with the roller surface as the center, oil sealing rings being sleeved on two symmetrical positions on both sides of the circumferential side wall of the main shaft with the roller surface as the center, and two oil sealing rings being respectively located on a side of the corresponding shaft ring away from the roller surface, bearing seats being removably sleeved on two symmetrical positions on both sides of the circumferential side wall of the main shaft with the roller surface as the center, and two bearing seats being respectively located on a side of the corresponding oil sealing ring away from the roller surface.

[0007] As a preferred solution of the utility model, the distance between the bearing seat and the oil seal ring on the same side is smaller than the distance between the oil seal ring and the shaft ring on the same side.

[0008] As a preferred solution of the utility model, the outer diameter of the shaft collar is consistent with the outer diameter of the bearing seat, and the outer diameter of the oil seal ring is slightly smaller than the outer diameter of the shaft collar.

[0009] As a preferred solution of the utility model, the lubricating substance of the roller surface is lubricating water, and the lubricating substance of the bearing seat is lubricating grease.

[0010] As a preferred solution of the utility model, the oil seal ring located on the same side is a double-track structure.

[0011] As a preferred solution of the utility model, the distance between the roller surface and the two shaft rings on both sides is determined according to the outer diameter of the roller surface.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] In the utility model, the main shaft rotates and then drives the roller surface to rotate. During the rotation of the roller surface, the lubricating water spreads to the peripheral side wall of the main shaft along with the operation of the roller surface until it contacts the shaft collar. The shaft collar rotates synchronously with the main shaft, and then the rotation effect of the shaft collar causes part of the lubricating water to be thrown out due to the centrifugal force when in contact, thereby reducing the amount of lubricating water entering the bearing seat; and the other part of the lubricating water that still flows along the main shaft after passing through the shaft collar is isolated from the channel that continues to flow toward the bearing seat under the action of the oil seal rings on both sides, thereby minimizing the amount of lubricating water flowing along the main shaft into the bearing seat, thereby maximally avoiding the problem of grease emulsification due to the intervention of lubricating water, thereby ensuring the lubricating effect of grease on the bearing seat, reducing the wear of the bearing seat, and thus increasing the service life of the bearing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the planar front view structure of the utility model.

[0015] Description of reference numerals:

[0016] 1. Roller surface; 2. Shaft collar; 3. Oil seal ring; 4. Bearing seat; 5. Spindle. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0018] The utility model provides Figure 1A sealing device for a bearing seat of a dryer support roller shown in the figure comprises a main shaft 5 which can drive the lower support roller of the dryer to rotate, a roller surface 1 is sleeved on the middle part of the side wall of the main shaft 5, and shaft rings 2 which can block and throw out water flow are sleeved on both sides of the side wall of the main shaft 5 with the roller surface 1 as the center, and oil sealing rings 3 are sleeved on both sides of the side wall of the main shaft 5 with the roller surface 1 as the center, and the two oil sealing rings 3 are respectively located on the side of the corresponding shaft ring 2 away from the roller surface 1, and bearing seats 4 are removably sleeved on both sides of the side wall of the main shaft 5 with the roller surface 1 as the center, and the two bearing seats 4 are respectively located on the side of the corresponding oil sealing ring 3 away from the roller surface 1, and the roller surface 1 sleeved on the middle part of the side wall of the main shaft 5 is the largest contact surface during the operation process and is also the position subjected to greater force, so it needs to be lubricated at all times with lubricating water.

[0019] The distance between the bearing seat 4 and the oil seal ring 3 on the same side is smaller than the distance between the oil seal ring 3 and the shaft ring 2 on the same side. The oil seal ring 3 is arranged at a position closer to the bearing seat 4. The distance can be shortened to reduce the gap between the oil seal ring 3 and the bearing seat 4, thereby shortening the space for lubricating water to enter.

[0020] The outer diameter of the shaft collar 2 is consistent with the outer diameter of the bearing seat 4, and the outer diameter of the oil seal ring 3 is slightly smaller than the outer diameter of the shaft collar 2. The outer diameter of the shaft collar 2 is consistent with the outer diameter of the bearing seat 4, which can prevent the lubricating water thrown out by the centrifugal force of the shaft collar 2 from directly entering the bearing seat 4 through the diameter difference.

[0021] The lubricating material of the roller surface 1 is lubricating water, and the lubricating material of the bearing seat 4 is lubricating grease. The lubricating water can perform rotational lubrication on the force-bearing surface of the roller surface 1, and the lubricating grease is used as a universal lubricant for the bearing seat 4. The lubricating water and the grease will cause the grease to emulsify, thereby aggravating the rotational wear of the bearing seat 4.

[0022] The oil seal ring 3 on the same side has a double-channel structure, that is, the oil seal ring 3 on one side adopts a double-layer structure, that is, a combination of two single oil seal rings 3, thereby improving the overall sealing effect of the oil seal ring 3.

[0023] The distance between the roller surface 1 and the two shaft rings 2 on both sides is determined by the outer diameter of the roller surface 1. The larger the diameter of the roller surface 1, the larger the distance between the roller surface 1 and the shaft ring 2. On the one hand, sufficient lubricating water is reserved to pass through the channel, and on the other hand, it can ensure that the lubricating water during contact can be thrown out by the centrifugal force of the rotation of the shaft ring 2.

[0024] In the present invention, the main shaft 5 rotates and drives the roller surface 1 to rotate. During the rotation of the roller surface 1, the lubricating water spreads to the side wall of the main shaft 5 along with the roller surface 1 until it contacts the shaft collar 2. The shaft collar 2 rotates synchronously with the main shaft 5, and then through the rotation effect of the shaft collar 2, part of the lubricating water is thrown out due to the centrifugal force when in contact, thereby reducing the amount of lubricating water entering the bearing seat 4; and the other part of the lubricating water that still flows along the main shaft 5 after passing through the shaft collar 2 is isolated from the channel that continues to flow toward the bearing seat 4 under the action of the oil seal rings 3 on both sides, thereby minimizing the amount of lubricating water flowing along the main shaft 5 into the bearing seat 4, thereby maximally avoiding the problem of grease emulsification due to the intervention of lubricating water, thereby ensuring the lubricating effect of grease on the bearing seat 4, reducing the wear of the bearing seat 4, and thus increasing the service life of the bearing seat 4.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A drying machine support roller bearing seat sealing device, characterized in that: The invention comprises a main shaft (5) capable of driving the lower supporting wheel of the dryer to rotate, a roller surface (1) being sleeved on the middle part of the peripheral side wall of the main shaft (5), a shaft ring (2) capable of blocking water flow and throwing water flow out being sleeved on both sides of the peripheral side wall of the main shaft (5) with the roller surface (1) as the center being symmetrically disposed, an oil seal ring (3) being sleeved on both sides of the peripheral side wall of the main shaft (5) with the roller surface (1) as the center being symmetrically disposed, and the two oil seal rings (3) being respectively located on the side of the corresponding shaft ring (2) away from the roller surface (1), and a bearing seat (4) being detachably sleeved on both sides of the peripheral side wall of the main shaft (5) with the roller surface (1) as the center being symmetrically disposed, and the two bearing seats (4) being respectively located on the side of the corresponding oil seal ring (3) away from the roller surface (1).

2. A drying machine support roller bearing seat sealing device according to claim 1, characterized in that: The distance between the bearing seat (4) and the oil seal ring (3) on the same side is smaller than the distance between the oil seal ring (3) and the shaft ring (2) on the same side.

3. A drying machine support roller bearing seat sealing device according to claim 1, characterized in that: The outer diameter of the shaft collar (2) is consistent with the outer diameter of the bearing seat (4), and the outer diameter of the oil seal ring (3) is slightly smaller than the outer diameter of the shaft collar (2).

4. A drying machine support roller bearing seat sealing device according to claim 1, characterized in that: The lubricating substance of the roller surface (1) is lubricating water, and the lubricating substance of the bearing seat (4) is lubricating grease.

5. The sealing device for the bearing seat of a dryer support roller according to claim 1, characterized in that: The oil seal ring (3) located on the same side has a double-track structure.

6. A drying machine support roller bearing seat sealing device according to claim 1, characterized in that: The distance between the roller surface (1) and the two shaft rings (2) on both sides is determined according to the outer diameter of the roller surface (1).

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