Fluorine-lined pump mechanical seal pressing and flattening device

Abstract

The utility model provides a pressing and flattening device for a mechanical seal of a fluorine-lined pump, and mainly relates to the technical field of maintenance of fluorine-lined pumps. A pressing and flattening device for a fluorine-lined pump mechanical seal comprises a base, a bearing and a lower pressing disc, a first sleeve and a second sleeve are fixedly arranged on the two sides of the top of the base, a supporting rod is arranged in the first sleeve in a matched mode, a lead screw is arranged in the second sleeve in a matched mode, and a stress plate is fixedly arranged on the top of the supporting rod and the top of the lead screw; the middle of the stress plate is in threaded connection with a screw, a hexagonal protruding block is fixedly arranged at the top of the screw, the bottom of the screw abuts against a bearing, and a lower pressing disc is fixedly arranged at the bottom of the bearing. The utility model has the beneficial effects that the bearing is welded at the upper part of the lower pressure plate, so that the lower pressure plate cannot rotate along with the jackscrew rod when the jackscrew rod is pressed downwards; the mechanical seal of the fluorine-lined pump can be better pressed and flattened, the installation of the mechanical seal can be conveniently and independently completed by one operator, the service life of the pressed mechanical seal is longer, and the loss of materials is reduced.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of fluorine-lined pump maintenance, in particular to a sealing, pressing and flattening device for a fluorine-lined pump. Background Art

[0002] Fluorine-lined pumps generally have single-end mechanical seals. When repairing and installing the seal, it is common to use two hands to press the seal ring while another person tightens it. This makes it difficult to press the seal into place or flatten it, shortening the seal's service life. Utility Model Content

[0003] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0004] A fluorine-lined pump sealing, pressing and flattening device includes a base, a bearing, and a lower pressure plate. A first sleeve and a second sleeve are fixedly arranged on both sides of the top of the base. A support rod is arranged inside the first sleeve, and a screw rod is arranged inside the second sleeve. A force plate is fixedly arranged on the top of the support rod and the screw rod. The middle position of the force plate is threadedly connected to the screw. A hexagonal protrusion is fixedly arranged on the top of the screw. The bottom of the screw abuts against the bearing, and a lower pressure plate is fixedly arranged on the bottom of the bearing.

[0005] A reducing port is fixedly provided on the top of the first sleeve, an inner ring of the reducing port abuts against an outer ring of a support rod, a nut is sleeved on the outer ring of the support rod, and the nut is threadedly connected to the outer ring of the reducing port.

[0006] The outer ring of the second sleeve is rotatably connected to the screw sleeve near the top, and the inner ring of the screw sleeve is threadedly connected to the screw rod, and the screw rod is located inside the second sleeve.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] The utility model discloses a simple structure, is easy to install and use, by welding the bearing on the upper part of the lower pressure plate, can ensure that the lower pressure plate will not rotate when the top screw rod is pressed down; it can better press and flatten the mechanical seal of the fluorine-lined pump, is convenient to operate, and one person can independently complete the installation of the mechanical seal; after pressing, the mechanical seal has a longer service life and reduces the loss of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attachment Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Attachment Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0011] Attachment Figure 3 This utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0012] AttachmentFigure 4 is the utility model Figure 2 Partial enlarged structure diagram of B place in middle.

[0013] The label shown in the drawing: 1, base; 2, bearing; 3, lower pressing disc; 4, first sleeve; 5, second sleeve; 6, support rod; 7, screw rod; 8, stress plate; 9, screw rod; 10, variable diameter port; 11, nut; 12, screw sleeve. Specific embodiments

[0014] The utility model is further explained in combination with the drawings and specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various alterations or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.

[0015] In combination with the drawings, a fluorine lining pump machine seal pressing and flattening device includes base 1, bearing 2, lower pressing disc 3, first sleeve 4 and second sleeve 5 are fixedly arranged on the top of both sides of base 1, support rod 6 is arranged in the first sleeve 4, screw rod 7 is arranged in the second sleeve 5, stress plate 8 is fixedly arranged on the top of support rod 6 and screw rod 7, screw rod 9 is connected with stress plate 8 at the middle position by screwing, hexagonal lug is fixedly arranged on the top of screw rod 9, screw rod 9 is abutted with bearing 2 at the bottom, lower pressing disc 3 is fixedly arranged on the bottom of bearing 2, and pressure is applied to lower pressing disc 3 by rotating screw rod 9.

[0016] Variable diameter port 10 is fixedly arranged on the top of first sleeve 4, the inner ring of variable diameter port 10 is abutted with the outer ring of support rod 6, nut 11 is sleeved on the outer ring of support rod 6, and nut 11 is connected with the outer ring of variable diameter port 10 by screwing, and stress plate 8 is limited by this structure.

[0017] The outer ring of second sleeve 5 is rotatably connected with screw sleeve 12 near the top, the inner ring of screw sleeve 12 is connected with screw rod 7 by screwing, and screw rod 7 is located in the inside of second sleeve 5, and the height of stress plate 8 is adjusted by this structure.

[0018] When the device is used, stress plate 8 is adjusted to a suitable height by rotating screw sleeve 12, the machine seal ring is first pressed on the impeller, lower pressing disc 3 is placed on the impeller, and then placed on base 1, bearing 2 is aligned with screw rod 9, screw rod 9 is rotated, and bearing 2 is pressed into the inner ring, lower pressing disc 3 is driven to press down to make the machine seal ring descend stably, after the machine seal ring reaches the standard position, the locking screw on the ring is tightened, and the machine seal installation is completed.

[0019] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sealing, pressing and flattening device for a fluorine-lined pump, comprising a base (1), a bearing (2), and a lower pressure plate (3), characterized in that: A first sleeve (4) and a second sleeve (5) are fixedly arranged on both sides of the top of the base (1); a support rod (6) is arranged inside the first sleeve (4); a screw rod (7) is arranged inside the second sleeve (5); a force plate (8) is fixedly arranged on the top of the support rod (6) and the screw rod (7); a screw rod (9) is threadedly connected to the middle position of the force plate (8); a hexagonal protrusion is fixedly arranged on the top of the screw rod (9); the bottom of the screw rod (9) abuts against the bearing (2); and a lower pressure plate (3) is fixedly arranged on the bottom of the bearing (2).

2. A sealing, pressing and flattening device for a fluorine-lined pump according to claim 1, characterized in that: A reducing port (10) is fixedly provided on the top of the first sleeve (4), the inner ring of the reducing port (10) abuts against the outer ring of the support rod (6), the outer ring of the support rod (6) is sleeved with a nut (11), and the nut (11) is threadedly connected to the outer ring of the reducing port (10).

3. The sealing, pressing and flattening device for a fluorine-lined pump according to claim 1, characterized in that: The outer ring of the second sleeve (5) is rotatably connected to the screw sleeve (12) near the top, and the inner ring of the screw sleeve (12) is threadedly connected to the screw rod (7), and the screw rod (7) is located inside the second sleeve (5).

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