CN209687779U

CN209687779U - Mechanical sealing device with fastening mechanism

Info

Publication number: CN209687779U
Application number: CN201920409422.2U
Authority: CN
Inventors: 贾祥际; 李志�
Original assignee: Tianjin Ciolvo Seals Technology Development Co ltd
Current assignee: Tianjin Ciolvo Seals Technology Development Co ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-11-26
Anticipated expiration: 2029-03-28

Abstract

The utility model discloses a mechanical seal device with fastening device, including outer shaft machine body, the output shaft fixedly connected with transfer line of outer shaft machine body, the casing on transfer line surface is established to the right side fixedly connected with cover of outer shaft machine body, the friction ring on transfer line surface is established to the inside fixedly connected with cover of casing, friction ring and casing all with transfer line swing joint, the surface cover of transfer line is equipped with the seal cover that is located friction ring right side. The utility model discloses a rotation bolt drives the clamp plate and moves right, and the clamp plate drives collet chuck and moves to the inside of tightening ring, and the collet chuck right-hand member tightens up through the conical surface of tightening ring inner wall and with the surperficial extrusion contact of transfer line, has solved current fastening means and has not been convenient for maintain the dismantlement to reduced mechanical seal device life's problem, this mechanical seal device with fastening mechanism possesses fastening means convenient to maintain advantages such as dismantlement.

Description

A kind of mechanically-sealing apparatus with retention mechanism

Technical field

The utility model relates to technical field of mechanical, specially a kind of mechanically-sealing apparatus with retention mechanism.

Background technique

Mechanical seal refers to by least a pair of end face perpendicular to rotation axis in Fluid pressure and compensation mechanism elastic force The device for preventing fluid from leaking for being bonded and constituting with respect to sliding is kept under effect and under the cooperation of auxiliary seal, elastic force adds Mounted mechanism and auxiliary seal be metallicity line pipe mechanical seal we be known as the wavy metal seal of tube, in light seal, also Have and make auxiliary seal using rubber bellows, rubber bellows elastic force is limited, generally requires and is aided with spring to meet load bullet Power.

Mechanical seal is a kind of gland seal device of rotating machinery, some mechanical since transmission shaft is applied in outside equipment, axis with There are a circumferential clearances between equipment, to need to use mechanically-sealing apparatus, existing mechanically-sealing apparatus wherein one End is the transmission shaft surface for needing to be fixed on centrifugal pump, and fixed form is generally welded and fixed, so as to cause mechanical seal dress Setting can not be dismantled when needing to be serviced, and the service life of mechanically-sealing apparatus is reduced.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of mechanically-sealing apparatus with retention mechanism, tool It the advantages that disassembly convenient for safeguarding for fastening means, solves existing fastening means and is not easy to carry out maintenance disassembly, to reduce The problem of mechanically-sealing apparatus service life.

(2) technical solution

In order to achieve the above object, the utility model provides the following technical solutions: a kind of machinery with retention mechanism is close Seal apparatus, including outer shaft basic machine, the output shaft of the outer shaft basic machine are fixedly connected with drive rod, the outer shaft mechanical The shell for being set in drive rod surface is fixedly connected on the right side of ontology, the inside of the shell, which is fixedly connected with, is set in transmission The drag ring on bar surface, the drag ring and shell are flexibly connected with drive rod, and the surface of the drive rod, which is arranged with, to be located at Sealing shroud on the right side of drag ring, the surface of the drive rod are arranged with the extrusion ring inside sealing shroud, the extrusion ring The right contact in left side and drag ring, the top and bottom on the right side of the sealing shroud inner wall are fixedly connected to pressure spring, the pressure It is fixedly connected on the right side of the left side of spring and extrusion ring, is fixedly connected on the right side of the sealing shroud and is set in the tight of drive rod surface Gu pipe, the top and bottom of the fastener tube offer opening, are fixedly connected with tightening ring on the right side of the fastening inside pipe wall, The internal activity of the fastener tube is connected with the pressing plate for being set in drive rod surface, and the top of the pressing plate is run through out with bottom end Mouthful and extend to the outside of fastener tube, be fixedly connected with the collet for being set in drive rod surface, institute on the right side of the pressing plate The right end for stating collet extends to the inside of tightening ring and contacts with the inner wall of tightening ring, the inner surface of the collet with The surface of drive rod contacts, and the top and bottom of the fastener tube is fixedly connected to the connecting plate on the right side of pressing plate, described Top and bottom on the left of pressing plate is connected with bolt, and the right end of the bolt sequentially passes through pressing plate and connecting plate and extends To the right side of connecting plate, the connecting plate and pressing plate are connect with bolt thread.

Preferably, it is fixedly connected on the right side of the left side of the drag ring and extrusion ring and is set in the close of drive rod surface Packing, the inner surface of the gasket are contacted with the surface of drive rod.

Preferably, the top and bottom of the sealing shroud inner wall offers sliding slot, the top and bottom of the extrusion ring It is fixedly connected to sliding block, the sliding slot sliding block is slidably connected.

Preferably, the front of the pressing plate is fixedly connected to the bumper positioned at open interior, the anticollision with the back side Pad is located at the top and bottom of pressing plate.

Preferably, it is connected with the spring shim for being set in drive rod surface on the left of the fastening inside pipe wall, it is described Spring shim is located at the inside of tightening ring, the left side of the spring shim and the right contact of collet.

Preferably, the surface of the bolt is fixedly connected with the limit plate between pressing plate and connecting plate, the limit The right side of plate and the left contact of connecting plate.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of mechanically-sealing apparatus with retention mechanism, have with It is lower the utility model has the advantages that

1, the mechanically-sealing apparatus with retention mechanism is moved right by rotating bolt band dynamic pressure plate, and pressing plate drives Collet is mobile to the inside of tightening ring, and collet right end passes through the conical surface tightening of tightening ring inner wall and the table with drive rod Face squeezes contact, solves existing fastening means and is not easy to carry out maintenance disassembly, to reduce mechanically-sealing apparatus use The problem of service life, this has many advantages, such as the mechanically-sealing apparatus of retention mechanism, has fastening means disassembly convenient for safeguarding.

2, the mechanically-sealing apparatus with retention mechanism can be improved shell and sealing shroud by the way that gasket is arranged Leakproofness prevents medium from revealing from the connection gap of shell and sealing shroud, the practicability of mechanically-sealing apparatus is caused to reduce, and leads to Setting sliding slot and sliding block are crossed, limit can be played the role of to extrusion ring, enable extrusion ring that sealing shroud to be followed to be rotated, is prevented Only extrusion ring tilts when moving, and stability when improving extrusion ring movement can play pressing plate anti-by the way that bumper is arranged The effect of shield reduces the friction between pressing plate and fastener tube, to achieve the effect that improve pressing plate service life, by the way that bullet is arranged Spring gasket can play the role of support to collet, prevent collet from pine occur with fastener tube after prolonged use It is dynamic, the fastening effect of collet is improved, by the way that limit plate is arranged, limit can be played the role of to bolt, make bolt and pressure The case where plate forms an entirety, prevents bolt falling appearance, increases the contact area of bolt and connecting plate, prevents bolt loose It is dynamic.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model partial structurtes main view sectional view；

Fig. 3 is the utility model left side structure sectional view；

Fig. 4 is enlarged drawing at A in Fig. 1.

In figure: 1 outer shaft basic machine, 2 drive rods, 3 shells, 4 drag rings, 5 sealing shrouds, 6 extrusion rings, 7 pressure springs, 8 fastenings Pipe, 9 openings, 10 tightening rings, 11 pressing plates, 12 collets, 13 connecting plates, 14 bolts, 15 gaskets, 16 sliding slots, 17 sliding blocks, 18 Bumper, 19 spring shims, 20 limit plates.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-4, a kind of mechanically-sealing apparatus with retention mechanism, including outer shaft basic machine 1, outer shaft mechanical The output shaft of ontology 1 is fixedly connected with drive rod 2, and the right side of outer shaft basic machine 1, which is fixedly connected with, is set in 2 surface of drive rod Shell 3, the inside of shell 3 is fixedly connected with the drag ring 4 for being set in 2 surface of drive rod, drag ring 4 and shell 3 with biography Lever 2 is flexibly connected, and the surface of drive rod 2 is arranged with the sealing shroud 5 positioned at 4 right side of drag ring, and the surface of drive rod 2 is arranged with Extrusion ring 6 inside sealing shroud 5, the top and bottom of 5 inner wall of sealing shroud offer sliding slot 16, the top of extrusion ring 6 It is fixedly connected to sliding block 17 with bottom, 16 sliding block 17 of sliding slot is slidably connected, can be to crowded by setting sliding slot 16 and sliding block 17 Pressure ring 6 plays the role of limit, enables extrusion ring 6 that sealing shroud 5 to be followed to be rotated, and prevents extrusion ring 6 from tilting when moving, Improve extrusion ring 6 it is mobile when stability, the left side of extrusion ring 6 and the right contact of drag ring 4 and squeeze the left side of drag ring 4 The right side of pressure ring 6 is fixedly connected to the gasket 15 for being set in 2 surface of drive rod, the inner surface and drive rod 2 of gasket 15 Surface contact can be improved the leakproofness of shell 3 Yu sealing shroud 5 by the way that gasket 15 is arranged, prevent medium from shell 3 and At the connection gap of sealing shroud 5 reveal, cause the practicability of mechanically-sealing apparatus to reduce, the top on the right side of 5 inner wall of sealing shroud and Bottom is fixedly connected to pressure spring 7, and the left side of pressure spring 7 is fixedly connected with the right side of extrusion ring 6, and the right side of sealing shroud 5 is fixed to be connected It is connected to the fastener tube 8 for being set in 2 surface of drive rod, the top and bottom of fastener tube 8 offers opening 9,8 inner wall of fastener tube Right side is fixedly connected with tightening ring 10, and the internal activity of fastener tube 8 is connected with the pressing plate 11 for being set in 2 surface of drive rod, pressing plate 11 top and bottom end run through opening 9 and extend to the outside of fastener tube 8, and the front of pressing plate 11 is fixedly connected to the back side Bumper 18 inside opening 9, bumper 18 are located at the top and bottom of pressing plate 11, can by the way that bumper 18 is arranged Play the role of protection to pressing plate 11, reduce the friction between pressing plate 11 and fastener tube 8, uses the longevity to reach and improve pressing plate 11 The effect of life, the right side of pressing plate 11 are fixedly connected with the collet 12 for being set in 2 surface of drive rod, the right end of collet 12 It extends to the inside of tightening ring 10 and is contacted with the inner wall of tightening ring 10, the inner surface of collet 12 and the surface of drive rod 2 It contacts, is connected with the spring shim 19 for being set in 2 surface of drive rod on the left of 8 inner wall of fastener tube, spring shim 19 is located at The inside of tightening ring 10, the left side of spring shim 19 and the right contact of collet 12 can by the way that spring shim 19 is arranged Play the role of support to collet 12, prevent collet 12 from loosening after prolonged use with fastener tube 8, improves The fastening effect of collet 12, the top and bottom of fastener tube 8 are fixedly connected to the connecting plate 13 positioned at 11 right side of pressing plate, The top and bottom in 11 left side of pressing plate is connected with bolt 14, and the right end of bolt 14 sequentially passes through pressing plate 11 and connecting plate 13 And the right side of connecting plate 13 is extended to, connecting plate 13 and pressing plate 11 are threadedly coupled with bolt 14, and the surface of bolt 14 is fixed to be connected The limit plate 20 being connected between pressing plate 11 and connecting plate 13, the right side of limit plate 20 and the left contact of connecting plate 13, lead to Setting limit plate 20 is crossed, limit can be played the role of to bolt 14, so that bolt 14 and pressing plate 11 is formed an entirety, prevents spiral shell The case where bolt 14 falls off appearance increases the contact area of bolt 14 and connecting plate 13, prevents bolt 14 from loosening.

When in use, drag ring 4 is fixed on the right side of outer shaft basic machine 1 by shell 3 and is set in biography by user Then extrusion ring 6 is set in the surface of drive rod 2 and drive rod 2 is made to sequentially pass through extrusion ring 6, sealing shroud by the surface of lever 2 5, then fastener tube 8, pressing plate 11, collet 12 and sealing shroud 5 push sealing shroud 5 to make left side and the drag ring 4 of extrusion ring 6 Right contact, while rotating bolt 14 makes bolt 14 move right with dynamic pressure plate 11, and pressing plate 11 drives collet 12 to receipts The inside of tight ring 10 is mobile, and the right end of collet 12 passes through the conical surface tightening of 10 inner wall of tightening ring and the surface with drive rod 2 Contact is squeezed, is rotated by collet 12 with dynamic pressure plate 11 in the work of outer shaft mechanical ontology 1, pressing plate 11 passes through fastener tube 8 Band movable sealing sleeve 5 rotates, and sealing shroud 5 drives extrusion ring 6 to rotate by the limit of sliding block 17, makes left side and the friction of extrusion ring 6 The right side spin friction of ring 4 and the pair that rubs that partners, to prevent 1 interior media of outer shaft basic machine from revealing.

In conclusion this has the mechanically-sealing apparatus of retention mechanism, moved right by rotating bolt 14 with dynamic pressure plate 11 Dynamic, pressing plate 11 drives collet 12 mobile to the inside of tightening ring 10, and 12 right end of collet passes through 10 inner wall of tightening ring Conical surface tightening is simultaneously contacted with the extruding of the surface of drive rod 2, is solved existing fastening means and is not easy to carry out maintenance disassembly, thus The problem of reducing mechanically-sealing apparatus service life, this has the mechanically-sealing apparatus of retention mechanism, has fastening means just In safeguard disassembly the advantages that.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of mechanically-sealing apparatus with retention mechanism, including outer shaft basic machine (1), it is characterised in that: the outer shaft The output shaft of basic machine (1) is fixedly connected with drive rod (2), is fixedly connected with set on the right side of the outer shaft basic machine (1) It is located at the shell (3) on drive rod (2) surface, the inside of the shell (3), which is fixedly connected with, is set in rubbing for drive rod (2) surface It wipes ring (4), the drag ring (4) and shell (3) are flexibly connected with drive rod (2), and the surface of the drive rod (2) is arranged with Sealing shroud (5) on the right side of drag ring (4), the surface of the drive rod (2) are arranged with the extruding internal positioned at sealing shroud (5) Ring (6), the right contact in the left side of the extrusion ring (6) and drag ring (4), top on the right side of sealing shroud (5) inner wall with Bottom is fixedly connected to pressure spring (7), is fixedly connected on the right side of the left side and extrusion ring (6) of the pressure spring (7), the sealing shroud (5) fastener tube (8) for being set in drive rod (2) surface is fixedly connected on the right side of, the top and bottom of the fastener tube (8) is equal It offers opening (9), is fixedly connected with tightening ring (10) on the right side of fastener tube (8) inner wall, the inside of the fastener tube (8) It is connected with the pressing plate (11) for being set in drive rod (2) surface, opening (9) are run through on the top and bottom end of the pressing plate (11) And the outside of fastener tube (8) is extended to, the spring for being set in drive rod (2) surface is fixedly connected on the right side of the pressing plate (11) Collet (12), the right end of the collet (12) extend to the inside of tightening ring (10) and connect with the inner wall of tightening ring (10) Touching, the inner surface of the collet (12) are contacted with the surface of drive rod (2), and the top and bottom of the fastener tube (8) is equal It is fixedly connected with the connecting plate (13) being located on the right side of pressing plate (11), the top and bottom on the left of the pressing plate (11) is flexibly connected Have bolt (14), the right end of the bolt (14) sequentially passes through pressing plate (11) and connecting plate (13) and extends to connecting plate (13) Right side, the connecting plate (13) and pressing plate (11) are threadedly coupled with bolt (14).

2. a kind of mechanically-sealing apparatus with retention mechanism according to claim 1, it is characterised in that: the drag ring (4) it is fixedly connected to the gasket (15) for being set in drive rod (2) surface on the right side of left side and extrusion ring (6), it is described close The inner surface of packing (15) is contacted with the surface of drive rod (2).

3. a kind of mechanically-sealing apparatus with retention mechanism according to claim 1, it is characterised in that: the sealing shroud (5) top and bottom of inner wall offers sliding slot (16), and the top and bottom of the extrusion ring (6) is fixedly connected to sliding block (17), sliding slot (16) sliding block (17) is slidably connected.

4. a kind of mechanically-sealing apparatus with retention mechanism according to claim 1, it is characterised in that: the pressing plate (11) front is fixedly connected to the back side is located at the internal bumper (18) of opening (9), and the bumper (18) is located at pressure The top and bottom of plate (11).

5. a kind of mechanically-sealing apparatus with retention mechanism according to claim 1, it is characterised in that: the fastener tube (8) spring shim (19) for being set in drive rod (2) surface is connected on the left of inner wall, the spring shim (19) is located at The inside of tightening ring (10), the left side of the spring shim (19) and the right contact of collet (12).

6. a kind of mechanically-sealing apparatus with retention mechanism according to claim 1, it is characterised in that: the bolt (14) surface is fixedly connected with the limit plate (20) between pressing plate (11) and connecting plate (13), the limit plate (20) The left contact on right side and connecting plate (13).