Split type mechanical sealing structure suitable for special equipment for spandex production

Abstract

The utility model discloses a split type mechanical sealing structure suitable for special equipment for spandex production, and relates to the technical field of mechanical sealing. The device comprises a static ring seat, a moving ring seat, a first half-sectioned moving ring, a pushing ring and a fixing block, the moving ring seat is arranged in front of the static ring seat, the first half-sectioned moving ring is movably connected to the upper portion in the moving ring seat, a second half-sectioned moving ring is movably connected to the portion, below the first half-sectioned moving ring, in the moving ring seat, and the first half-sectioned moving ring and the second half-sectioned moving ring are symmetrical to each other. A pushing ring is arranged in front of the movable ring seat, three fixing blocks are arranged in front of the pushing ring in an annular array mode, pushing bolts are connected into the fixing blocks in a penetrating and threaded mode, and the ends of the pushing bolts abut against the front end of the pushing ring. Through the arrangement of the static ring seat, the moving ring seat, the first half-section moving ring, the pushing ring and the fixing block, the problems that the moving ring is inconvenient to replace in the spandex production process of a mechanical seal, and the static ring and the moving ring are inconvenient to abut against in the replacement work are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical seals, and particularly relates to a split-type mechanical seal structure suitable for special equipment for spandex production. Background Art

[0002] Mechanical seal is an important fluid sealing device, which is widely used in various mechanical equipment. It achieves close fit of the sealing surface through precise geometric design and material selection, effectively preventing fluid leakage. Mechanical seal has the characteristics of high reliability, long life and low maintenance, and is an indispensable sealing solution in the industrial field. Especially in the production process of spandex, it can effectively prevent spandex fibers from entering the rotating parts and causing safety hazards. However, it still has the following disadvantages in actual use:

[0003] In the production process of spandex, the mechanical seal has a high production continuity. During the production process of spandex, the dynamic ring on it is worn out when working for a long time. Therefore, the replacement cycle of the dynamic ring is short. During the replacement of the dynamic ring, it needs to be completely disassembled, which is inconvenient to disassemble.

[0004] During the production of spandex, when the mechanical seal is replaced and installed, the dynamic ring and the static ring need to be tightened. During the tightening, the tightening operation needs to be complicated. During operation, the operation is complicated and the tightening is easy to be inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a split mechanical seal structure suitable for special equipment for spandex production. By arranging a static ring seat, a dynamic ring seat, a semi-split dynamic ring, a push ring and a fixed block, the problem of inconvenience in replacing the dynamic ring of the mechanical seal during the production process of spandex and inconvenience in pressing the static ring and the dynamic ring tightly during the replacement work is solved.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a split mechanical seal structure suitable for special equipment for spandex production, comprising a stationary ring seat, a dynamic ring seat, a half-split dynamic ring 1, a pushing ring and a fixed block, wherein a dynamic ring seat is arranged in front of the stationary ring seat, a half-split dynamic ring 1 is movably connected to the upper inner part of the dynamic ring seat, a half-split dynamic ring 2 is movably connected to the dynamic ring seat below the half-split dynamic ring 1, and the half-split dynamic ring 1 and the half-split dynamic ring 2 are symmetrical to each other, a pushing ring is arranged in front of the dynamic ring seat, and three fixing blocks are arranged in an annular array in front of the pushing ring, a pushing bolt is threadedly connected in the fixing block, and the end of the pushing bolt abuts against the front end of the pushing ring. When working, the stationary ring body is movably connected therein through the stationary ring seat, the half-split dynamic ring 1 and the half-split dynamic ring 2 are movably connected therein through the dynamic ring seat, the half-split dynamic ring 1 and the half-split dynamic ring 2 cooperate to form a dynamic ring, which is pushed by the pushing ring, and the pushing bolt is movably connected therein through the fixed block.

[0008] Furthermore, an outer O-ring is movably clamped at the rear end of the stationary ring seat, a fixing groove is fixed on the inner wall of the stationary ring seat inside the outer O-ring, a sleeve is fixed in the fixing groove, a clamping sleeve is movably connected to the sleeve behind the stationary ring seat, the stationary ring seat is squeezed by the outer O-ring, the outer O-ring fixes the sleeve through the fixing groove, and the position of the stationary ring seat is determined by the clamping sleeve.

[0009] Furthermore, a stationary ring body is movably connected inside the stationary ring seat, an inner O-ring is movably connected at the gap between the stationary ring body and the stationary ring seat, the stationary ring body abuts against half-split moving ring one and half-split moving ring two, and the inner O-ring between the stationary ring body and the stationary ring seat seals the gap therebetween.

[0010] Furthermore, plug rods are fixed at the centers of the two ends of the half-split movable ring one, and sockets are provided at both ends of the half-split movable ring two. The two plug rods are movably connected in the two sockets respectively, and inner O-rings are also movably connected in the gaps between the half-split movable ring one and the half-split movable ring two and the movable ring seat. The half-split movable ring one is inserted into the socket on the half-split movable ring two through the plug rod to complete the installation.

[0011] Furthermore, the push ring is fixed in the dynamic ring seat, and three external protrusions are fixed in a ring array on the circumference of the push ring outside the dynamic ring seat. The push ring is fixed in the dynamic ring seat and performs a pushing action through the external protrusions.

[0012] Furthermore, an outer O-ring is movably connected to the gap between the moving ring seat and the pushing ring, an outer O-ring is movably engaged on the inner wall of the pushing ring, and the moving ring seat is closed by the outer O-ring.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem of inconvenience in replacing the moving ring of the mechanical seal during the production process of spandex by arranging a static ring seat, a moving ring seat, a half-split moving ring 1, a pushing ring and a fixing block. When replacing the moving ring, the pushing bolt is directly screwed down, and then the outer protrusion is knocked to immediately attract the half-split moving ring 1 and the half-split moving ring 2 with a magnet, so that the half-split moving ring 1 and the half-split moving ring 2 are separated from the moving ring seat, the half-split moving ring 1 and the half-split moving ring 2 are disassembled, and the installation of the half-split moving ring 1 and the half-split moving ring 2 is repeated to complete the replacement of the moving ring. By arranging the moving ring in a half-split shape, it is more convenient to replace the moving ring during use.

[0015] The utility model solves the problem of the inconvenience of tightening the static ring and the dynamic ring of the mechanical seal during replacement work by arranging a pushing ring and a fixing block. The fixing block is fixed on the inner wall of the shaft body shell, so that when the pushing bolt is rotated, the pushing ring drives the dynamic ring seat, so that the static ring body and the half-split dynamic ring one and the half-split dynamic ring two are abutted together, making it more convenient for the mechanical seal to tighten the static ring and the dynamic ring during replacement work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a split mechanical seal structure suitable for special equipment for spandex production;

[0017] Figure 2 It is a three-dimensional diagram of the disassembled structure of the half-cut moving ring one and the half-cut moving ring two;

[0018] Figure 3 To promote the three-dimensional diagram of the ring structure;

[0019] Figure 4 It is a three-dimensional diagram of the fixed block structure;

[0020] Figure 5 The complete structural stereogram of a split mechanical seal structure suitable for special equipment for spandex production.

[0021] Reference numerals:

[0022] 1. Stationary ring seat; 101. Outer O-ring; 102. Insert sleeve; 103. Snap sleeve; 104. Fixing groove; 105. Stationary ring body; 106. Inner O-ring; 2. Moving ring seat; 3. Half-cut moving ring 1; 301. Half-cut moving ring 2; 302. Insert rod; 303. Socket; 4. Push ring; 401. Outer protrusion; 5. Fixing block; 501. Push bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-5As shown, the utility model is a split mechanical seal structure suitable for special equipment for spandex production, including a stationary ring seat 1, a dynamic ring seat 2, a half-split dynamic ring 3, a push ring 4 and a fixed block 5. The dynamic ring seat 2 is arranged in front of the stationary ring seat 1, the stationary ring body 105 is movably connected to the stationary ring seat 1, and the dynamic ring seat 2 movably connects the half-split dynamic ring 1 3 and the half-split dynamic ring 2 301 therein, the upper part of the dynamic ring seat 2 is movably connected with the half-split dynamic ring 1 3, and the dynamic ring seat 2 below the half-split dynamic ring 1 3 is movably connected with the half-split dynamic ring 2 301, and the half-split dynamic ring 1 3 and the half-split dynamic ring 2 301 are movably connected in the dynamic ring seat 2, and through the cooperation of the dynamic ring seat 2, as the shaft body rotates, the matching The movable ring seat 2 is sealed, and the half-cut movable ring 1 3 and the half-cut movable ring 2 301 are symmetrical with each other, so that when working, the half-cut movable ring 1 3 and the half-cut movable ring 2 301 are abutted together to form a complete movable ring. A pushing ring 4 is arranged in front of the movable ring seat 2, and three fixing blocks 5 are arranged in a circular array in front of the pushing ring 4. A pushing bolt 501 is threaded through the fixing block 5, and the end of the pushing bolt 501 abuts against the front end of the pushing ring 4. The fixing block 5 is fixed on the inner wall of the shaft body shell, so that when the pushing bolt 501 is rotated, the pushing ring 4 drives the movable ring seat 2, so that the static ring body 105 and the half-cut movable ring 1 3 and the half-cut movable ring 2 301 abut together.

[0025] Among them Figure 1 As shown, the rear end of the stationary ring seat 1 is movably clamped with an outer O-ring 101, a fixing groove 104 is fixed on the inner wall of the stationary ring seat 1 inside the outer O-ring 101, a sleeve 102 is fixed in the fixing groove 104, a clamping sleeve 103 is movably connected to the sleeve 102 at the rear of the stationary ring seat 1, and the stationary ring seat 1 is sealed between the stationary ring seat 1 and the mounting surface when it abuts against the mounting surface through the outer O-ring 101, and the stationary ring seat 1 is fixed on the pressure cover, the stationary ring seat 1 fixes the sleeve 102 through the fixing groove 104, and the clamping sleeve 103 movably connected on the sleeve 102 is fixed on the shaft sleeve, so as to assist the installation alignment of the stationary ring seat 1 during work.

[0026] Among them Figure 1 , 2 As shown, a stationary ring body 105 is movably connected inside the stationary ring seat 1, an inner O-ring 106 is movably connected in the gap between the stationary ring body 105 and the stationary ring seat 1, the stationary ring body 105 is in contact with the half-split moving ring 1 3 and the half-split moving ring 2 301, and the stationary ring seat 1 is sleeved on the shaft through the stationary ring body 105.

[0027] Among them Figure 1 , 2As shown, the centers of the two ends of the half-split movable ring 1 3 are fixed with plug rods 302, and both ends of the half-split movable ring 2 301 are provided with plug holes 303. The two plug rods 302 are movably connected in the two plug holes 303 respectively, and the gaps between the half-split movable ring 1 3 and the half-split movable ring 2 301 and the movable ring seat 2 are also movably connected with inner O-rings 106. The plug rod 302 on the half-split movable ring 1 3 is inserted into the plug hole 303 on the half-split movable ring 2 301, so that the half-split movable ring 1 3 and the half-split movable ring 2 301 are stuck together.

[0028] Among them Figure 1 , 3 As shown, the push ring 4 is fixed in the dynamic ring seat 2, and three external protrusions 401 are fixed in a circular array around the push ring 4 outside the dynamic ring seat 2. The push ring 4 is connected to the dynamic ring seat 2, and is knocked away from the static ring seat 1 through the external protrusions 401, so that the dynamic ring seat 2, the half-cut dynamic ring 3, and the push ring 4 are knocked off.

[0029] Among them Figure 1 As shown, an outer O-ring 101 is movably connected at the gap between the dynamic ring seat 2 and the push ring 4, and an outer O-ring 101 is movably engaged on the inner wall of the push ring 4. The outer O-ring 101 between the dynamic ring seat 2 and the push ring 4 further increases the sealing between the dynamic ring seat 2 and the push ring 4, and the outer O-ring 101 on the inner wall of the push ring 4 provides auxiliary sealing between the push ring 4 and the shaft body.

[0030] The specific working principle of the utility model is as follows: when working, first put the stationary ring seat 1 on the shaft body, and then push the stationary ring seat 1 into the end cover, so that the plug sleeve 102 enters the clamping sleeve 103 fixed in the shaft sleeve on the end cover, determine the position of the stationary ring seat 1, and then weld the stationary ring seat 1 and the end cover together, fix them on the end cover supported by the shaft body, and then prepare to install the stationary ring. When installing the stationary ring, align the stationary ring with the stationary ring seat 1, clamp the stationary ring on the stationary ring seat 1, and then push the stationary ring into the stationary ring seat 1, then align the ends of the half-cut moving ring 1 3 and the half-cut moving ring 2 301, and set them on the outside of the shaft body, then align the insertion rod 302 on the half-cut moving ring 1 3 with the socket 303 on the half-cut moving ring 2 301, and after the insertion rod 302 is inserted into the socket 303, the half-cut moving ring 1 3 and the half-cut moving ring 2 301 are combined and movably connected to the outside of the shaft, and the push ring 4 and the moving ring seat 2 are sleeved onto the outside of the shaft body, and the moving ring seat 2 is pushed to fit the half-split moving ring 1 3 and the half-split moving ring 2 301, so that the half-split moving ring 1 3 and the half-split moving ring 2 301 abut against the static ring body 105, and then the outer shaft sleeve is sleeved onto the shaft body, and installed on the end cover with the end cover, the pushing bolt 501 is screwed into the fixing block 5 and abutted against the pushing ring 4, until the half-split moving ring 1 3 and the half-split moving ring 2 301 abut against the static ring, and the installation is completed. When replacing the moving ring, directly unscrew the pushing bolt 501, and then by knocking the outer protrusion 401, the magnet will immediately adsorb the half-split moving ring 1 3 and the half-split moving ring 2 301, so that the half-split moving ring 1 3 and the half-split moving ring 2 301 are separated from the moving ring seat 2, disassemble the half-split moving ring 1 3 and the half-split moving ring 2 301, and repeat the above-mentioned installation of the half-split moving ring 1 3 and the half-split moving ring 2 301 to complete the moving ring replacement.

[0031] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A split mechanical seal structure suitable for special equipment for spandex production, comprising a stationary ring seat (1), a dynamic ring seat (2), a semi-split dynamic ring (3), a push ring (4) and a fixed block (5), characterized in that: A moving ring seat (2) is arranged in front of the stationary ring seat (1); a half-cut moving ring 1 (3) is movably connected to the upper part of the moving ring seat (2); a half-cut moving ring 2 (301) is movably connected to the moving ring seat (2) below the half-cut moving ring 1 (3); and the half-cut moving ring 1 (3) and the half-cut moving ring 2 (301) are symmetrical to each other. A pushing ring (4) is arranged in front of the moving ring seat (2); three fixing blocks (5) are arranged in a circular array in front of the pushing ring (4); a pushing bolt (501) is threadedly connected to the fixing block (5); and the end of the pushing bolt (501) abuts against the front end of the pushing ring (4).

2. The split mechanical seal structure suitable for special equipment for spandex production according to claim 1, characterized in that: An outer O-ring (101) is movably clamped at the rear end of the stationary ring seat (1), a fixing groove (104) is fixed on the inner wall of the stationary ring seat (1) inside the outer O-ring (101), a plug sleeve (102) is fixed in the fixing groove (104), and a clamping sleeve (103) is movably connected to the plug sleeve (102) at the rear of the stationary ring seat (1).

3. The split mechanical seal structure suitable for special equipment for spandex production according to claim 1, characterized in that: A stationary ring body (105) is movably connected inside the stationary ring seat (1), an inner O-ring (106) is movably connected in the gap between the stationary ring body (105) and the stationary ring seat (1), and the stationary ring body (105) abuts against the first half-split moving ring (3) and the second half-split moving ring (301).

4. The split mechanical seal structure suitable for special equipment for spandex production according to claim 1, characterized in that: Insertion rods (302) are fixed at the centers of the two ends of the half-split movable ring 1 (3), and insertion holes (303) are provided at both ends of the half-split movable ring 2 (301). The two insertion rods (302) are movably connected in the two insertion holes (303), and the gaps between the half-split movable ring 1 (3) and the half-split movable ring 2 (301) and the movable ring seat (2) are also movably connected with inner O-rings (106).

5. The split mechanical seal structure suitable for special equipment for spandex production according to claim 1, characterized in that: The push ring (4) is fixed in the moving ring seat (2), and three external protrusions (401) are fixed in a ring array on the circumference of the push ring (4) outside the moving ring seat (2).

6. The split mechanical seal structure suitable for special equipment for spandex production according to claim 1, characterized in that: An outer O-ring (101) is movably connected to the gap between the moving ring seat (2) and the pushing ring (4), and an outer O-ring (101) is movably engaged on the inner wall of the pushing ring (4).

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