Modified magnetofluid sealing element

Abstract

The utility model discloses a modified magnetofluid sealing element which comprises a modified magnetofluid sealing element main body, a rotating shaft is movably installed in the modified magnetofluid sealing element main body, and a detachable flange plate is arranged at the front end of the outer side of the modified magnetofluid sealing element main body in a clamped mode. A fan-shaped clamping groove is formed in the position, close to the front end, of the outer side of the modified magnetofluid sealing element body, a rubber sealing ring is clamped in an annular groove in the front surface of the modified magnetofluid sealing element body, and the detachable flange plate comprises a limiting circular ring, a rubber ring, a limiting bottom block, a limiting plug pin block, a telescopic spring and an L-shaped plug pin strip. The number of the rubber rings is two. According to the modified magnetofluid sealing element, after the modified magnetofluid sealing element is installed, the modified magnetofluid sealing element is more convenient to disassemble and assemble again through the detachable flange plate and the fan-shaped clamping groove, the disassembly and assembly mode is simple, bolts do not need to be disassembled and assembled again, and maintenance and overhaul of the modified magnetofluid sealing element body are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnetic fluid sealing structure technical field, especially in a kind of modified magnetic fluid sealing. BACKGROUND

[0002] Modified magnetic fluid sealing utilizes the sealing of modified magnetic fluid, and magnetic fluid is a kind of special fluid that can control its physical properties by magnetic field, it is both fluid and magnetic material, under the action of magnetic field, magnetic fluid can be adsorbed in the gap of magnet or electromagnet, form stable sealing layer, to prevent the leakage of medium, modified magnetic fluid sealing is mainly used to realize efficient, reliable sealing function, especially in the occasion that liquid or gas leakage needs to be avoided.

[0003] Modified magnetic fluid sealing is installed by bolt passing through the flange plate through-hole outside modified magnetic fluid sealing;When modified magnetic fluid sealing needs to be overhauled in prior art, the bolt in flange plate needs to be disassembled, modified magnetic fluid sealing needs to be reinstalled, and the bolt in modified magnetic fluid sealing flange plate needs to be retightened, there is a problem in this installation mode, bolt needs to be frequently screwed during overhauling process, and bolt needs to be tightened, which is not conducive to the overhauling of modified magnetic fluid sealing. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of modified magnetic fluid sealing, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of modified magnetic fluid sealing, including modified magnetic fluid sealing body, the inside of the modified magnetic fluid sealing body is movably installed with shaft, the position of the front end outside the modified magnetic fluid sealing body is clamped with detachable flange plate, the position close to the front end outside the modified magnetic fluid sealing body is provided with fan-shaped clamping slot, the annular groove in the front surface of the modified magnetic fluid sealing body is clamped with rubber sealing ring.

[0007] Preferably, the detachable flange plate includes limiting ring, rubber ring, limiting bottom block, limiting bolt block, telescopic spring and L-shaped bolt bar.

[0008] Preferably, the number of rubber rings is two, and the rubber rings are fixedly installed on the inside of the limiting ring at the positions of the two ends.

[0009] Preferably, the number of limiting bottom blocks is four, and the limiting bottom blocks are fixedly installed on the outside of the limiting ring at the positions of the through holes.

[0010] Preferably, the limiting plug block is arranged in the through hole outside the limiting ring, the telescopic spring is arranged inside the limiting plug block, the lower end of the telescopic spring is fixedly connected with the limiting plug block, and the upper end of the telescopic spring is fixedly connected with the limiting bottom block.

[0011] Preferably, the L-shaped plug bar is inserted into the rectangular through hole in the side surface of the limiting plug block, the front end of the L-shaped plug bar penetrates through the rectangular through hole of the limiting bottom block, and the through hole in the front surface of the limiting ring is located at the middle position between the limiting plug blocks.

[0012] Preferably, the number of the fan-shaped clamping grooves is four, the fan-shaped clamping grooves are uniformly distributed at positions close to the front end outside the main body of the modified magnetic fluid sealing element, and the lower end of the limiting plug block is inserted into the inside of the fan-shaped clamping groove.

[0013] The detachable flange plate and the fan-shaped clamping groove make the modified magnetic fluid sealing element more convenient to disassemble after installation, the disassembling mode is simple, and the modified magnetic fluid sealing element does not need to be disassembled again, so that the maintenance and overhaul of the main body of the modified magnetic fluid sealing element are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the modified magnetic fluid sealing element.

[0015] Figure 2 It is a modified magnetic fluid sealing element main body and rotating shaft structure schematic view of the modified magnetic fluid sealing element.

[0016] Figure 3 It is a detachable flange plate structure exploded schematic view of the modified magnetic fluid sealing element.

[0017] Figure 4 It is a limiting plug block structure exploded schematic view of the modified magnetic fluid sealing element. Figure 1 It is an enlarged schematic view of part A.

[0018] Figure 5 It is an enlarged schematic view of part B. Figure 1 It is an enlarged schematic view of part B.

[0019] In the figure: 1, modified magnetic fluid sealing element main body; 2, rotating shaft; 3, detachable flange plate; 301, limiting ring; 302, rubber ring; 303, limiting bottom block; 304, limiting plug block; 305, telescopic spring; 306, L-shaped plug bar; 4, fan-shaped clamping groove; 5, rubber sealing ring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0021] As shown in Figures 1-5 A modified magnetic fluid seal, comprising a modified magnetic fluid seal body 1, a rotating shaft 2 movably mounted inside the modified magnetic fluid seal body 1, a detachable flange plate 3 arranged at the front end of the outer side of the modified magnetic fluid seal body 1, a fan-shaped clamping groove 4 arranged at the position close to the front end of the outer side of the modified magnetic fluid seal body 1, and a rubber sealing ring 5 clamped in the annular groove on the front surface of the modified magnetic fluid seal body 1. The detachable flange plate 3 and the fan-shaped clamping groove 4 make it more convenient to reinstall the modified magnetic fluid seal after installation, and the disassembly method is simple, without the need to disassemble the bolts again, which is conducive to the maintenance and overhaul of the modified magnetic fluid seal body 1.

[0022] In this embodiment, the detachable flange plate 3 comprises a limiting ring 301, a rubber ring 302, a limiting bottom block 303, a limiting bolt block 304, an extension spring 305 and an L-shaped bolt bar 306.

[0023] In this embodiment, the number of rubber rings 302 is two, which are fixedly installed at the positions of both ends of the inner side of the limiting ring 301, and seal the gap between the outer side of the modified magnetic fluid seal body 1 and the inner side of the limiting ring 301.

[0024] In this embodiment, the number of limiting bottom blocks 303 is four, which are fixedly installed at the positions of the through holes on the outer side of the limiting ring 301.

[0025] In this embodiment, the limiting bolt block 304 is arranged in the through hole on the outer side of the limiting ring 301, the extension spring 305 is arranged in the inside of the limiting bolt block 304, the lower end of the extension spring 305 is fixedly connected with the limiting bolt block 304, and the upper end of the extension spring 305 is fixedly connected with the limiting bottom block 303. The limiting bolt block 304 can be manually pulled upward in the through hole on the outer side of the limiting ring 301, and the extension spring 305 between the limiting bottom block 303 and the limiting bolt block 304 is compressed.

[0026] In this embodiment, the L-shaped bolt bar 306 is inserted into the rectangular through hole on the side surface of the limiting bolt block 304, the front end of the L-shaped bolt bar 306 passes through the rectangular through hole of the limiting bottom block 303, the through hole on the front surface of the limiting ring 301 is located at the middle position between the limiting bolt blocks 304, and the L-shaped bolt bar 306 is pulled out of the rectangular through hole on the side surface of the limiting bolt block 304 when the limiting bolt block 304 needs to be pulled.

[0027] In the embodiment, the number of the fan-shaped clamping grooves 4 is four, which are evenly distributed on the outer side of the modified magnetic fluid sealing element main body 1 close to the front end, the lower end of the limiting plug block 304 is inserted into the inside of the fan-shaped clamping groove 4, the bolt passes through the through hole in the front surface of the limiting ring 301 to fix the modified magnetic fluid sealing element, when the modified magnetic fluid sealing element main body 1 and the rotating shaft 2 need to be disassembled and maintained, the L-shaped plug bar 306 in the rectangular through hole on the side of the limiting plug block 304 is pulled out, the limiting plug block 304 is pulled up, the extension spring 305 between the limiting bottom block 303 and the limiting plug block 304 is compressed, until the middle part of the rectangular through hole on the side of the limiting plug block 304 is aligned with the rectangular through hole of the limiting bottom block 303, the lower end of the limiting plug block 304 is pulled out of the inside of the fan-shaped clamping groove 4, the L-shaped plug bar 306 is inserted into the middle part of the rectangular through hole of the limiting plug block 304 through the limiting bottom block 303, the modified magnetic fluid sealing element main body 1 in the detachable flange plate 3 can be taken out, when the modified magnetic fluid sealing element main body 1 is reinstalled, the modified magnetic fluid sealing element main body 1 is inserted into the inside of the detachable flange plate 3, until the lower end of the limiting plug block 304 is aligned with the fan-shaped clamping groove 4, the L-shaped plug bar 306 in the middle part of the rectangular through hole of the limiting plug block 304 is pulled out, the extension spring 305 returns to the original state, the lower end of the limiting plug block 304 is inserted into the inside of the fan-shaped clamping groove 4 again, and the front end of the L-shaped plug bar 306 is inserted into the rectangular through hole on the upper end of the side of the limiting plug block 304 through the limiting bottom block 303.

[0028] The protection scope of the utility model is not limited to the above embodiments and its transformation. The routine modification and replacement of the person skilled in the art based on the content of the embodiment all belong to the protection scope of the utility model.

Claims

1. A modified ferrofluid seal, characterized by: The application relates to a modified magnetic fluid sealing body (1), which is internally movably mounted with a rotating shaft (2), and is externally provided with a detachable flange (3) at the front end, and is externally provided with a plurality of fan-shaped clamping grooves (4) near the front end, and is internally provided with a rubber sealing ring (5) in the annular groove of the front surface.

2. A modified ferrofluid seal according to claim 1, wherein: The detachable flange (3) comprises a limiting ring (301), a rubber ring (302), a limiting bottom block (303), a limiting bolt block (304), an elastic spring (305) and an L-shaped bolt bar (306).

3. A modified ferrofluid seal according to claim 2, wherein: The rubber ring (302) is arranged in two, and is fixedly installed at the both ends of the inner side of the limiting ring (301).

4. A modified ferrofluid seal according to claim 3, wherein: The limiting bottom block (303) is arranged in four, and is fixedly installed at the positions of the through holes of the outer side of the limiting ring (301).

5. A modified ferrofluid seal according to claim 4, wherein: The limiting bolt block (304) is arranged in the through hole of the outer side of the limiting ring (301), the elastic spring (305) is arranged in the inside of the limiting bolt block (304), the lower end of the elastic spring (305) is fixedly connected with the limiting bolt block (304), and the upper end of the elastic spring (305) is fixedly connected with the limiting bottom block (303).

6. A modified ferrofluid seal according to claim 5, wherein: The L-shaped bolt bar (306) is inserted into the rectangular through hole of the side surface of the limiting bolt block (304), the front end of the L-shaped bolt bar (306) penetrates through the rectangular through hole of the limiting bottom block (303), and the through hole of the front surface of the limiting ring (301) is located at the middle part between the limiting bolt blocks (304).

7. A modified ferrofluid seal according to claim 6, wherein: The fan-shaped clamping grooves (4) are arranged in four, are uniformly distributed at the positions near the front end of the outer side of the modified magnetic fluid sealing body (1), and the lower end of the limiting bolt block (304) is inserted into the inside of the fan-shaped clamping groove (4).

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