Sealing device of crusher

Abstract

A sealing device of a crusher comprises a movable roller, a fixed roller and a machine shell, a U-shaped groove is formed in the machine shell, a shaft head of the fixed roller is connected with a first bearing seat, a shaft head of the movable roller is connected with a second bearing seat, a first nylon sealing plate is arranged at the position, on the first bearing seat, of the outer side of the machine shell, and the first nylon sealing plate is fixed to the machine shell through a first bolt. The first bearing seat is tightly pressed on the first nylon sealing plate, and the first bearing seat is fixed on the fixed frame; a second nylon sealing plate is arranged at the position, on the second bearing seat, of the outer side of the machine shell, the second nylon sealing plate is tightly attached to the outer side face of the machine shell, the second bearing seat is connected with a mounting plate, the mounting plate is connected with the second nylon sealing plate through a second bolt, and the second bearing seat is connected with the fixing frame through a spring. The utility model solves the negative effect caused by the soft characteristic of the wool felt.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a sealing device for an upper and lower four-roller crusher. Background Art

[0002] In order to avoid sparks caused by high-speed rotation friction between metals, there is no contact between the shell of the upper and lower four-roll crusher and the rotating crushing roller shaft head, but this will cause a gap between the inside and outside of the equipment, and this gap will cause leakage during normal operation. In order to avoid leakage, it is necessary to add a seal between the two. The sealing material in the prior art is wool felt, which is soft, extrudable and easy to cut. It can fit tightly with the crushing roller shaft head without generating sparks, and is a good sealing material. When adjusting the roller spacing, the wool felt is passively pulled by the crushing roller to move. At this time, due to its soft characteristics, the inner hole of the wool felt is easily enlarged, thereby generating a gap, so that it cannot fit with the surface of the crushing roller shaft head. The material will leak out from this gap, and the dust and powder attached to it will be mixed with the lubricating oil between the moving bearing seat plate and the guide rail, and the material will accumulate on the track, increasing its resistance. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a crusher sealing device to solve the negative effects caused by the soft characteristics of wool felt.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a crusher sealing device, comprising a movable roller, a fixed roller and a casing, the casing is provided with a U-shaped groove, the shaft head of the fixed roller is connected to the first bearing seat after passing through the U-shaped groove, the shaft head of the movable roller is connected to the second bearing seat after passing through the U-shaped groove, the outer side of the casing is provided with a fixed frame at the U-shaped groove, the first bearing seat and the second bearing seat are arranged in the fixed frame; the outer side of the casing is provided with a first nylon sealing plate at the first bearing seat, the first nylon sealing plate is fixed to the casing by a first bolt, the first bearing seat is pressed on the first nylon sealing plate, and the first bearing seat is fixed on the fixed frame; the outer side of the casing is provided with a second nylon sealing plate at the second bearing seat, the second nylon sealing plate is tightly attached to the outer side surface of the casing, the second bearing seat is connected to the mounting plate, the mounting plate and the second nylon sealing plate are connected by a second bolt, and the second bearing seat is connected to the fixed frame through a spring. The principle of the utility model is as follows: the sealing element is changed into a nylon sealing plate. The strength of the nylon sealing plate is much greater than that of wool felt, and it will not produce sparks after friction with metal. According to this characteristic, it can be machined and then installed on the crusher casing by bolts, and the sealing performance is improved; the second nylon sealing plate on the movable roller is installed on the second bearing seat, and when the crushing roller is moved, synchronous movement can be achieved to protect its inner hole from being enlarged, effectively reduce the leakage here, keep the sliding track clean, and greatly reduce the resistance on the track.

[0005] As an improvement, two parallel tracks are provided on the outer side of the housing, and the second bearing seat is provided between the two tracks.

[0006] As an improvement, a partition is provided in the U-shaped groove between the first shaft head and the second shaft head.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The seal is changed to a nylon sealing plate. The strength of the nylon sealing plate is much greater than that of wool felt, and it will not produce sparks after friction with metal. Based on this characteristic, it can be machined and then installed on the crusher casing by bolts to improve the sealing performance; the second nylon sealing plate on the movable roller is installed on the second bearing seat. When the crushing roller is moved, synchronous movement can be achieved to protect its inner hole from being enlarged, effectively reduce leakage here, keep the sliding track clean, and greatly reduce the resistance on the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a side schematic diagram of the utility model.

[0010] Figure 2 It is a three-dimensional diagram of the utility model. DETAILED DESCRIPTION

[0011] The utility model will be further described below in conjunction with the accompanying drawings.

[0012] like Figure 1 , 2 As shown, a crusher sealing device comprises a movable roller 2, a fixed roller 1 and a casing 9; a U-shaped groove is provided on the casing 9, the shaft head of the fixed roller 1 passes through the U-shaped groove and is connected to the first bearing seat 3, the shaft head of the movable roller 2 passes through the U-shaped groove and is connected to the second bearing seat 4, a partition is provided between the first shaft head and the second shaft head in the U-shaped groove, for ensuring the spacing between the fixed roller 1 and the movable roller 2; a fixing frame 5 is provided at the U-shaped groove on the outside of the casing 9, the first bearing seat 3 and the second bearing seat 4 are arranged in the fixing frame 5. A first nylon sealing plate 6 is provided at the first bearing seat 3 on the outside of the casing 9, the first nylon sealing plate 6 is fixed to the casing 9 by a first bolt, the first bearing seat 3 is pressed against the first nylon sealing plate 6, and the first bearing seat 3 is fixed to the fixing frame 5. A second nylon sealing plate 7 is provided on the outer side of the casing 9 at the second bearing seat 4, and the second nylon sealing plate 7 is tightly attached to the outer side of the casing 9. The second bearing seat 4 is connected to the mounting plate 8, and the mounting plate 8 is connected to the second nylon sealing plate 7 by a second bolt. The second bearing seat 4 is connected to the fixed frame 5 by a spring 10. Two parallel tracks are provided on the outer side of the casing 9, and the second bearing seat 4 is arranged between the two tracks. The second bearing seat 4 and the second nylon sealing plate 7 can move between the two tracks to adjust the distance between the active roller 2 and the passive roller.

[0013] The principle of the utility model is as follows: the sealing member is changed into a nylon sealing plate. The strength of the nylon sealing plate is much greater than that of wool felt, and it will not produce sparks after friction with metal. According to this characteristic, it can be machined and then installed on the crusher casing 9 by bolts, and the sealing performance is improved; the second nylon sealing plate 7 on the movable roller 2 is installed on the second bearing seat 4. When the crushing roller is moved, synchronous movement can be achieved to protect its inner hole from being enlarged, effectively reduce the leakage here, keep the sliding track clean, and greatly reduce the resistance on the track.

Claims

1. A crusher sealing device, comprising a movable roller, a fixed roller and a casing, wherein the casing is provided with a U-shaped groove, the shaft head of the fixed roller passes through the U-shaped groove and is connected to a first bearing seat, the shaft head of the movable roller passes through the U-shaped groove and is connected to a second bearing seat, a fixing frame is provided on the outer side of the casing at the U-shaped groove, and the first bearing seat and the second bearing seat are arranged in the fixing frame; characterized in that: A first nylon sealing plate is provided at the first bearing seat on the outside of the casing, the first nylon sealing plate is fixed to the casing by a first bolt, the first bearing seat is pressed against the first nylon sealing plate, and the first bearing seat is fixed to the fixing frame; a second nylon sealing plate is provided at the second bearing seat on the outside of the casing, the second nylon sealing plate is tightly attached to the outer side surface of the casing, the second bearing seat is connected to the mounting plate, the mounting plate and the second nylon sealing plate are connected by a second bolt, and the second bearing seat is connected to the fixing frame by a spring.

2. A crusher sealing device according to claim 1, characterized in that: The outer side of the housing is provided with two parallel tracks, and the second bearing seat is arranged between the two tracks.

3. A crusher sealing device according to claim 1, characterized in that: A partition is arranged in the U-shaped groove between the first shaft head and the second shaft head.

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