CN218063393U - Claw-shaped sealing structure for roller press - Google Patents

Abstract

The utility model discloses a claw type seal structure for a roller press, which comprises a seal head part, wherein one end far away from the seal head part is a seal tail part, the seal tail part comprises an outer seal lip and an inner seal lip positioned at the inner side of the outer seal lip, the outer seal lip and the inner seal lip are arranged in a claw shape which is gathered inwards, and a seal waist part is arranged between the inner seal lip and the seal head part; this product is fixed in the bearing frame through firm firmware on, convenient to detach changes, and sealing partition has promoted sealing performance with the sealed cooperation of external seal lip and interior seal lip to better protection the base bearing, cascaded structural design leaves the deformation space for external seal lip and interior seal lip, has prolonged life.

Description

Claw-shaped sealing structure for roller press

Technical Field

The utility model relates to a seal structure, in particular to a claw type seal structure for roll squeezer.

Background

The roller press is a high-pressure material layer grinding device, a main bearing of the roller press belongs to a heavy-load bearing, and the working conditions mainly comprise low speed, heavy load, impact load and vibration. When the grinding mill runs, the working condition of the main bearing of the roller press is severe, wherein the movable roller and the bearing seat thereof slide and swing back and forth on the frame, a large amount of fine powder is generated when the roller press extrudes materials, the running environment of the whole grinding workshop is also severe, and a reliable sealing structure is required to ensure the good working environment of the main bearing, so that the main bearing is prevented from being damaged due to the entering of impurities.

The existing main bearing sealing structure of the roll squeezer mostly adopts two groups of lip-shaped sealing rings or sealing structures in the forms of combining the lip-shaped sealing rings with V-shaped sealing rings and the like. Because this seals in the inboard of bearing frame, can't inspect and maintain after wearing and tearing or damage, in case damage very easily leads to the damage of main bearing, and change main bearing and inboard sealed feeding chute, feed arrangement, frame, speed reducer, pipeline and electric elements etc. that must dismantle the roll squeezer upper portion, hang out the roller at last and overhaul, overhaul the change cycle length, the main bearing is as the key spare part of roll squeezer simultaneously, the price is high, the supply cycle length, damage back direct and indirect loss are all great, consequently must adopt a reliable lubricated seal structure to guarantee the good operational environment of main bearing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a claw type seal structure for roll squeezer is used for overcoming among the prior art roll squeezer main bearing seal and dismantles inconvenient and the not good defect of leakproofness.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model discloses a claw type seal structure for roll squeezer, including sealing head, keep away from sealing head's one end is sealing tail, sealing tail includes the external seal lip and is located the inboard interior seal lip of external seal lip, external seal lip and interior seal lip are the claw form setting of gathering together inwards, be equipped with sealed waist between interior seal lip and the sealing head.

Further, the seal tail part and the seal waist part are positioned on the same horizontal plane.

Further, the sealing head is positioned at the lower part of the sealing waist part, and the sealing head and the sealing waist part are designed in a stepped mode.

Furthermore, the sealing head is provided with a threaded hole and is fixed on the bearing seat through a fastening piece.

Furthermore, a sealing partition plate is welded on the bearing seat and is positioned between the inner sealing lip and the outer sealing lip.

Further, the thickness of the sealing partition plate is matched with the size of the clearance between the outer sealing lip and the inner sealing lip.

Further, the length of the outer sealing lip is larger than that of the inner sealing lip.

The utility model discloses the beneficial effect who reaches is: this product is fixed in the bearing frame through firm firmware on, convenient to detach changes, and sealing partition has promoted sealing performance with the sealed cooperation of external seal lip and interior seal lip to better protection the base bearing, cascaded structural design leaves the deformation space for external seal lip and interior seal lip, has prolonged life.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an installation schematic diagram of the present invention.

In the figure: 1. a threaded hole; 2. sealing the head; 3. sealing the waist; 4. an inner sealing lip; 5. an outer sealing lip; 6. sealing the partition plate; 7. and a bearing seat.

Detailed Description

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

Example 1

As shown in fig. 1-2, a claw type sealing structure for a roller press comprises a sealing head part 2, one end far away from the sealing head part 2 is a sealing tail part, the sealing tail part comprises an outer sealing lip 5 and an inner sealing lip 4 located on the inner side of the outer sealing lip 5, the outer sealing lip 5 and the inner sealing lip 4 are arranged in a claw shape and gathered inwards, and a sealing waist part 3 is arranged between the inner sealing lip 4 and the sealing head part 2.

The seal tail and the seal waist 3 are located at the same horizontal plane.

The sealing head part 2 is provided with a threaded hole 1 and is fixed on a bearing seat 7 through a fastener.

The sealing head 2 is located at the lower part of the sealing waist 3, and the two are designed in a stepped manner.

And a sealing partition plate 6 is welded on the bearing seat 7, and the sealing partition plate 6 is positioned between the inner sealing lip 4 and the outer sealing lip 5.

The thickness of the sealing partition plate 6 is matched with the size of the clearance between the outer sealing lip 5 and the inner sealing lip 4.

The length of the outer sealing lip 5 is larger than that of the inner sealing lip 4, the two lips are gathered together at the innermost ends of the two lips to form a claw shape, when the outer edge of the sealing partition plate 6 is positioned in the claw part, the sealing partition plate is clamped between the inner sealing lip 4 and the outer sealing lip 5 in a wrapping mode, and the outer sealing lip 5 and the inner sealing lip 4 are both in contact with the sealing partition plate 6, so that a sealing cavity is isolated from the outside. In addition, when the sealing partition plate 6 is inserted into the claw part, the outer sealing lip 5 and the inner sealing lip 4 are extruded outwards, and in order to reserve a space for deformation of the outer sealing lip 5 and the inner sealing lip 4, when an axial external force is met, the sealing waist part 3 is folded towards the bearing seat 7 along the axial direction, so that a deformation space is reserved for the outer sealing lip 5 and the inner sealing lip 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a claw type seal structure for roll squeezer, its characterized in that keeps away from including sealing head's one end is sealing tail portion, sealing tail portion includes the external seal lip and is located the inboard interior seal lip of external seal lip, external seal lip and interior seal lip are the claw form setting of gathering together inwards, be equipped with sealed waist between interior seal lip and the sealing head.

2. The jaw seal arrangement for a roller press of claim 1, wherein said seal tail and seal waist are located at the same horizontal plane.

3. The jaw seal arrangement for a roller press of claim 1, wherein said seal head is located at a lower portion of the seal waist, both being of stepped design.

4. The jaw seal arrangement for a roller press of claim 1, wherein said seal head has a threaded bore and is secured to a bearing housing by a fastener.

5. The jaw seal structure for a roller press according to claim 4, wherein a seal spacer is welded to the bearing housing, the seal spacer being located between the inner seal lip and the outer seal lip.

6. The jaw seal arrangement for a roller press of claim 5, wherein said seal spacer has a thickness that matches the gap size of said outer and inner seal lips.

7. The jaw seal structure for a roller press according to claim 1, wherein the length of the outer seal lip is > the length of the inner seal lip.

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