Multi-spring mechanical seal

Abstract

The utility model discloses a multi-spring mechanical seal which comprises a fixing ring, a plurality of first open grooves are formed in the fixing ring, rubber blocks are arranged in the first open grooves, springs and first protective rings are arranged at the tops of the rubber blocks, the springs are movably connected with the rubber blocks, and the first protective rings are arranged on the rubber blocks. The bottom of the first protection ring is fixedly connected with the top of a rubber block, second protection rings are arranged on the first protection ring, mounting rings are arranged on the multiple second protection rings, and a plurality of second open grooves are formed in the bottom of each mounting ring. The fixing ring, the spring, the first protection ring, the second protection ring, the mounting ring, the rubber ring and other structures are used in cooperation, normal work of the spring is not affected, meanwhile, the spring is protected, it is avoided that corrosive substances make direct contact with the spring and accumulate at the spring in the using process of the device, the service life of the spring is prolonged, and the service life of the spring is prolonged. And the replacement frequency of the spring is reduced, and the labor capacity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-spring mechanical seals, in particular to a multi-spring mechanical seal. Background Art

[0002] Mechanical seal, also known as end face seal, refers to a device that prevents fluid leakage by at least one pair of end faces perpendicular to the axis of rotation, which are kept in contact and slide relative to each other under the action of fluid pressure and the elastic force or magnetic force of the compensation mechanism and the cooperation of auxiliary seals. It is divided into single-spring mechanical seals and multi-spring mechanical seals.

[0003] At present, when using multi-spring mechanical seals, the pressure is evenly distributed due to the large number of springs, which makes the seal more stable during use. However, since the springs on the multi-spring mechanical seals are smaller in size than those on the single-spring mechanical seals, corrosive substances are prone to accumulate on the springs during use and damage the springs, requiring frequent replacement, which increases the workload of workers.

[0004] Therefore, it is necessary to provide a multi-spring mechanical seal to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a multi-spring mechanical seal.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-spring mechanical seal, including a fixing ring, a plurality of slots 1 are opened on the fixing ring, and the plurality of slots 1 are opened on the fixing ring in a circular array, a rubber block is arranged inside the plurality of slots 1, a spring and a protective ring 1 are arranged on the top of the plurality of rubber blocks, the spring is movably connected to the rubber block, the bottom of the protective ring 1 is fixedly connected to the top of the rubber block, a protective ring 2 is arranged on the protective ring 1, a plurality of protective rings 2 are arranged on the mounting ring, a plurality of slots 2 are opened on the bottom of the mounting ring, a rubber ring is embedded inside the plurality of slots 2, and a disassembly component is arranged on the fixing ring.

[0007] As a further description of the above technical solution:

[0008] A plurality of the rubber blocks are respectively matched with a plurality of the first slots in an interference fit, and a plurality of the second slots are respectively matched with a plurality of the second protection rings.

[0009] As a further description of the above technical solution:

[0010] A plurality of the first protection rings are provided with a slide groove on the top, the slide groove is annular, and a plurality of the second protection rings are slidably connected inside the slide groove.

[0011] As a further description of the above technical solution:

[0012] A plurality of the second protection rings are movably connected inside with rubber rings, and the plurality of the rubber rings are respectively interference fit with a plurality of the second protection rings.

[0013] As a further description of the above technical solution:

[0014] The disassembly assembly includes a plurality of collars and connectors. The collars are respectively fixedly sleeved on the outer surfaces of a plurality of protective rings. The connectors are movably arranged on the tops of the fixed rings. The tops of the connectors abut against the bottoms of the plurality of collars.

[0015] As a further description of the above technical solution:

[0016] The outer surface of the connecting piece is provided with two disassembly grooves, and the two disassembly grooves are symmetrically arranged.

[0017] As a further description of the above technical solution:

[0018] Four connecting columns are fixedly connected to the top of the mounting ring, and the four connecting columns are arranged in a circular array.

[0019] The utility model has the following beneficial effects:

[0020] 1. Compared with the prior art, the multi-spring mechanical seal, through the coordinated use of structures such as a fixing ring, a spring, a first protective ring, a second protective ring, a mounting ring and a rubber ring, can protect the spring without affecting the normal operation of the spring, and prevent corrosive substances from directly contacting the spring and accumulating on the spring during use of the device, thereby increasing the service life of the spring, reducing the number of times the spring needs to be replaced, and reducing the workload of workers.

[0021] 2. Compared with the prior art, the multi-spring mechanical seal, through the coordinated use of structures such as the fixing ring, the first slot, the rubber block, the second slot, the collar, the connecting piece and the disassembly groove, can individually disassemble and replace several springs, and can also directly remove and replace several springs at one time, making the replacement of the springs convenient and quick, and avoiding the influence of the replacement efficiency due to the replacement of a single spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a multi-spring mechanical seal proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the sealing ring and slotted structure of a multi-spring mechanical seal proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of a slotted and rubber ring of a multi-spring mechanical seal proposed by the utility model;

[0025] Figure 4 The utility model is a schematic diagram of the structure of a rubber block and a spring of a multi-spring mechanical seal.

[0026] Legend:

[0027] 1. Fixed ring; 2. Slot 1; 3. Rubber block; 4. Spring; 5. Protective ring 1; 6. Protective ring 2; 7. Mounting ring; 8. Slot 2; 9. Slide groove; 10. Rubber ring; 11. Ring; 12. Connector; 13. Disassembly groove; 14. Connecting column; 15. Rubber ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-4 The utility model provides a multi-spring mechanical seal: comprising a fixing ring 1, a plurality of slots 2 are provided on the fixing ring 1, a plurality of slots 2 are provided inside each of the slots 2, a spring 4 and a protective ring 5 are provided on the top of each of the rubber blocks 3, the spring 4 is movably connected to the rubber block 3, the bottom of the protective ring 5 is fixedly connected to the top of the rubber block 3, a protective ring 2 6 is provided on the protective ring 1 5, a plurality of protective rings 2 6 are provided on the mounting ring 7, the top of the mounting ring 7 is fixedly connected to four connecting columns 14, the four connecting columns 14 are arranged in a circular array, the mounting ring A plurality of slots 8 are provided at the bottom of 7, and rubber rings 15 are embedded in the interior of the plurality of slots 8. Through the provision of the rubber ring 15, the gap between the slot 8 and the top of the protective ring 6 can be sealed. A disassembly assembly is provided on the fixing ring 1. Through the provision of the disassembly assembly and with the cooperation of other structures, the plurality of springs 4 can be individually disassembled and replaced, and the plurality of springs 4 can also be directly removed all at once and replaced, so that the replacement of the spring 4 is convenient and quick, and the replacement efficiency is not affected by the single replacement of the spring 4.

[0030] The plurality of rubber blocks 3 are respectively matched with the plurality of slots 1 2 in interference fit, and the plurality of slots 2 8 are respectively matched with the plurality of protection rings 2 6 .

[0031] A slide groove 9 is provided on the top of several protective rings 5, and several protective rings 2 6 are slidably connected inside the slide groove 9. Through the opening of the slide groove 9, the protective ring 2 6 can slide into the inside of the protective ring 5, so that the spring 4 can work normally. Several protective rings 2 6 are movably connected inside with rubber rings 10, and several rubber rings 10 are respectively interference fit with several protective rings 2 6. Through the setting of the rubber ring 10, the stability of the protective ring 5 when it is set inside the slot 2 can be increased.

[0032] The disassembly assembly includes a plurality of collars 11 and connectors 12. The collars 11 are fixedly mounted on the outer surfaces of a plurality of protective rings 5, respectively. The connectors 12 are movably mounted on the top of the fixed ring 1. The top of the connector 12 abuts against the bottom of the collars 11. The outer surface of the connector 12 is provided with two disassembly grooves 13, and the two disassembly grooves 13 are symmetrically arranged.

[0033] Working principle: When using the device, it is connected to other mechanical structures for use. During the use of the device, under the action of the spring 4 and the slide groove 9, the protective ring 2 6 can continuously move up and down inside the protective ring 1 5. At the same time, under the coordinated action of the protective ring 1 5, the protective ring 2 6, the rubber block 3 and the sealing ring, during the use of the device, the liquid with corrosive substances flowing between the fixing ring 1 and the mounting ring 7 can be prevented from directly contacting and accumulating with the spring 4, thereby greatly improving the service life of the spring 4.

[0034] When one of the springs 4 in the device is damaged and needs to be replaced during use, the mounting ring 7 can be manually moved up after the device is separated from other mechanical structures, so that several protective rings 2 6 are respectively disengaged from several slots 2 8, and then one of the springs 4 to be replaced is found, and the rubber ring 10 in the corresponding protective ring 2 6 is pulled up with the help of a tool or manually to separate it from the protective ring 2 6, so that the spring 4 to be replaced can be taken out and replaced. If most of the springs 4 in the device are damaged or all of them need to be replaced, they can be inserted into the two disassembly grooves 13 with the help of a tool, and the connecting piece 12 can be lifted up to drive the protective ring 1 5, the protective ring 2 6, the ring 11 and the spring 4 to move up, and the several rubber blocks 3 can be taken out from the several slots 2 respectively, so that all the springs 4 to be replaced can be disassembled, removed and replaced.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-spring mechanical seal, comprising a fixing ring (1), characterized in that: The fixing ring (1) is provided with a plurality of slots (2), a plurality of the slots (2) are provided with rubber blocks (3) inside, a plurality of the rubber blocks (3) are provided with springs (4) and protective rings (5) on top, the springs (4) are movably connected to the rubber blocks (3), the bottom of the protective rings (5) is fixedly connected to the top of the rubber blocks (3), a protective ring (6) is provided on the protective ring (5), a plurality of the protective rings (6) are provided with mounting rings (7), a plurality of slots (8) are provided on the bottom of the mounting rings (7), a plurality of the slots (8) are provided with rubber rings (15) inside, and a disassembly component is provided on the fixing ring (1).

2. A multi-spring mechanical seal according to claim 1, characterized in that: The plurality of rubber blocks (3) are respectively interference-matched with the plurality of first slots (2), and the plurality of second slots (8) are respectively matched with the plurality of second protective rings (6).

3. A multi-spring mechanical seal according to claim 1, characterized in that: A plurality of the first protection rings (5) are provided with a slide groove (9) at the top, and a plurality of the second protection rings (6) are slidably connected inside the slide groove (9).

4. A multi-spring mechanical seal according to claim 1, characterized in that: The interiors of the plurality of second protective rings (6) are all movably connected with rubber rings (10), and the plurality of rubber rings (10) are respectively interference-fitted with the plurality of second protective rings (6).

5. A multi-spring mechanical seal according to claim 1, characterized in that: The disassembly assembly comprises a plurality of collars (11) and connecting pieces (12), wherein the plurality of collars (11) are respectively fixedly sleeved on the outer surfaces of a plurality of protective rings (5), and the connecting pieces (12) are movably arranged on the top of the fixed ring (1), and the top of the connecting piece (12) abuts against the bottom of the plurality of collars (11).

6. A multi-spring mechanical seal according to claim 5, characterized in that: The outer surface of the connecting piece (12) is provided with two disassembly grooves (13), and the two disassembly grooves (13) are symmetrically arranged.

7. A multi-spring mechanical seal according to claim 1, characterized in that: Four connecting columns (14) are fixedly connected to the top of the mounting ring (7), and the four connecting columns (14) are arranged in a circular array.

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