CN2483562Y

CN2483562Y - Rotary machinery shaft sealing device

Info

Publication number: CN2483562Y
Application number: CN 01224349
Authority: CN
Inventors: 黄政修
Original assignee: Scenic Precise Element Inc
Current assignee: Scenic Precise Element Inc
Priority date: 2001-05-22
Filing date: 2001-05-22
Publication date: 2002-03-27
Anticipated expiration: 2011-05-22

Abstract

The utility model relates to a shaft seal device for rotary machines, comprising orderly from the bottom to the top a shaft sleeve, an internal set rotating ring, an internal set fixing ring, a sealing cover, an external set fixing ring, an external set rotating ring and a locating ring. The utility model can be arranged at the shaft position of a pressure reaction groove mixer to be used for the seal of the rotating mandrel. The shaft thereof is fixedly arranged on the surface of the mandrel; the bulk surface of the shaft sleeve is provided with a plurality of vertical milling flutes; the medial of the ring-loop of the sealing cover is provided with a forced cycle channel so that the heat from the grinding surface can be cooled via coolant and quickly discharged through the forced cycle channel to prolong the service life of the mechanical shaft seal.

Description

The gland seal device that rotary machine is used

The utility model relates to a kind of gland seal device, especially the gland seal device used of rotary machine.

Stirrer is common rotary machine, its structural type is to be pivoted driving mechanism to drive the stirrer axle on reaction tank, axle in groove is then locked blade becomes stirrer, stirrer is arranged in reaction tank, axle can be passed through the power plant driven rotary, and drive the stirrer rotation, and can the liquid raw material in the tank be stirred.

The structure of this reaction tank stirrer, in whipping process, the inner pressure that responds again simultaneously exists, and gland seal device can be set usually, makes its pivot-connecting position that can seal axle, is gone out by the pivot-connecting position seepage to avoid fluid or gas pressure in the reaction tank; Again, the axle rotation is stirred, and produces the shortcoming that high temperature is assembled easily because of friction generates heat at drive-connecting shaft envelope place.For this reason, the runner that pump circulation liquid circulation cooling is provided is set in gland seal device, the temperature of reduction axle pivot-connecting position that can be in good time reaches the effect that heat radiation is cooled off.

But, this provides the runner of circulating liquid circulation, before not further processing again and changing structural design, the circulation of circulating liquid, must force pressure via the increase pump of outside, in good time heat is taken out of of ability, thus, must increase the forced feed system of cooling liquid and the loss that increases electric energy, and increase many extra cost expenditures on foot; Again, in the traditional gland seal device, there is no the design of fluid pressure outside in the tank that can contend with, in case and radiating efficiency variation, the thermal expansion of gland seal device promptly may cause the bad phenomenon of seepage, moreover, traditional gland seal device, mainly be to orientate main consideration as, and and be not suitable for the bigger rotary machine of the axle value of waving with being pivoted of vertical axle.

In order to overcome the deficiencies in the prior art, the gland seal device that provides a kind of rotary machine to use is provided the purpose of this utility model, and it has active heat removal, and the axle envelope does not need extra pressurization can reach the effect of balance.

The gland seal device that provides a kind of rotary machine to use is provided the technical solution of the utility model, its composition from bottom to top comprises in regular turn: axle sleeve, interior group swivel becket, interior group retaining ring, sealing cover, outer group retaining ring, outer group swivel becket and retaining ring structure, it is arranged at the groove top of stirrer, the urgent axle surface that is cemented in of axle sleeve, the body surface of axle sleeve is laid with multiple row lengthways milling groove, sealing cover is installed in the groove top, form inward flange and interior clip slot on the ring inner side surface of sealing cover, inward flange and in form in the clip slot around runner, guide plate is set in the runner, the upper wall surface top arranged outside engaging annular groove of sealing cover, both sides, the sealing cover outside is provided with the through hole that runs through in the runner; The protuberance side face outside and the end face of positioning ring are provided with a plurality of screws, through hole is set in the positioning block, the positioning block top is provided with hook portion, and the hook portion of each positioning block can be detained the engaging annular groove that is held in the sealing cover upper wall surface, and penetrates the through hole of positioning block with bolt and lock fastening in addition in the screw of retaining ring; Outer group retaining ring top is provided with a plurality of spring seats, spring is set in the spring seat, group retaining ring in outer group retaining ring downside is provided with, interior group retaining ring apical margin forms outwards outstanding flanged lip, and axle sleeve body top outer rim forms flange end, forms caulking groove between the body of flange end and axle sleeve, the flange end interior sidewall surface is provided with annular groove, ring is set in the annular groove, and interior group of swivel becket can snap in the caulking groove, makes the flanged lip driving fit at the flange end top.

The gland seal device that described rotary machine is used can be provided with O type ring in the set base ring groove in the inward flange of its sealing cover, interior clip slot and bottom.

The gland seal device that described rotary machine is used, its outer group swivel becket is installed in the positioning ring downside, organizes the swivel becket top outward a plurality of short slots are set, and short slot is corresponding to the screw of positioning ring, and the screw that institute's spiral shell is established in screw then supports in the short slot.

Design of the present utility model has following advantage:

1. lay multiple row lengthways milling groove on the body surface of axle sleeve, and be provided with the runner of pump circulation in the sealing cover, and suitable, the counterclockwise through hole of cooling liquid, the two through hole place is provided with guide plate, can the heat that the axle rotation is produced be discharged rapidly by cooling liquid, to prolong the working life of axle envelope.

2. the special design of lengthways milling groove and the formed gap of gland seal assembly in axle sleeve surface can be used for the rotary machine of axle amplitude of fluctuation as many as 3mm.

3. design of the present utility model can be subsidized the sealing thrust that axle seals by the reaction tank internal pressure, reaches sealing effect to reach the internal balance of axle envelope, and needn't the pressurization of outer boundary get final product balance, reaches and saves cost and effect easy to assembly.

Below in conjunction with accompanying drawing the utility model is elaborated:

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is an assembled sectional view of the present utility model;

Fig. 3 is the assembled sectional view that is arranged on the stirrer top of rotary machine of the present utility model;

Fig. 4 is the assembled sectional view of sealing cover of the present utility model and each member.

At first, please cooperate referring to shown in Fig. 1,2, it is respectively the three-dimensional exploded view and the assembled sectional view of the utility model gland seal device 1, its composition comprises from lower to upper in regular turn: axle sleeve 10, interior group of swivel becket 20, interior group of retaining ring 30, sealing cover 40, outward organize retaining ring 50, organize swivel becket 60 and positioning ring 70 structures outward, and be arranged on the groove top 91 of stirrer 90, axle 92 is hubbed in the gland seal device 1, and can activate axle 92 rotations, and utilize the terminal set stirrers of axle 92, the liquid of institute's splendid attires in the stirrer 90 is stirred.

Axle sleeve 10 urgent axle 92 surfaces that are cemented in as shown in Figure 1, 2, body 11 surfaces of this axle sleeve 10 cave inward, and multiple row lengthways milling groove 111 is laid on body 11 surfaces, in inboard, body 11 bottom groove 12 is set then, and O type ring is set in the groove 12; Again, body 11 bottom outer rims form

flange end

13, and 11 of the bodies of flange end 13 and axle sleeve 10 form caulking groove 131, and in flange end 13 interior sidewall surface annular groove 131 are set, and annular groove 131 can be wherein sheathed for ring 22.

Interior group swivel becket 20 apical margins form outwards outstanding flanged lip 21, and interior group of swivel becket 20 can snap in the caulking groove 131, makes flanged lip 21 driving fits at flange end 13 tops.

Sealing cover 40 can be by the solid groove top 91 at stirrer 90 of bolt 401 spiral shells, form inward flange 41 and interior clip slot 42 on the ring inner side surface of sealing cover 40, and inward flange 41 and in the clip slot 42 formation around runner 45, O type ring is set in inward flange 41 sides and the interior clip slot 42, sealing cover 40 bottoms are provided with base ring groove 43, O type ring is set in the base ring groove 43, and contiguous base ring groove 43 inboards are provided with a plurality of screws 431, the upper wall surface 47 bottom arranged outside engaging annular grooves 48 of sealing cover 40, again, both sides, sealing cover 40 outside is provided with the through

hole

44,46 that runs through in the runner 45.

The protuberance 71 side faces outside and the bottom end of positioning ring 70 are provided with a plurality of

screws

72,73, through hole 81 is set in the positioning block 80, the bottom is provided with hook portion 82, the hook portion 82 of each positioning block 80 can be detained on the engaging annular groove 48 that is held in sealing cover 40 upper wall surfaces 47 outsides, and penetrates the through hole 81 of positioning block 80 and locking is in addition fastening in the screw 73 of positioning ring 70 with bolt 83.

Outer group swivel becket 60 is installed in the downside of positioning ring 70, organizes swivel becket 60 tops outward a plurality of short slots 61 are set, and short slot 61 is corresponding to the screw 72 of positioning ring 70, and the screw that institute's spiral shell is established in screw 72 then supports in the short slot 61.

Outer group retaining ring 50 bottoms are provided with a plurality of spring seats 51, spring 52 is set in the spring seat 51, again, group retaining ring 30 in outer group retaining ring 50 downsides are provided with, interior group retaining ring 30 peripheries are provided with many clip slots 31, the screw 431 of each clip slot 31 and sealing cover 40 forms corresponding, can insert in the clip slot 31 and forms to pulling so lock screw in the screw 431.

As shown in Figures 2 and 3, the combination of whole gland seal device 1 then is installed in 91 tops, groove top of stirrer 90 by sealing cover 40, and axle sleeve 10 is fastening sheathed with axle 92, therefore, the rotation of axle 92 can drive axle sleeve 10 and interior group swivel becket 20 and outer group swivel becket 60 and be rotated.

On practical operation is used, can cooperate referring to Fig. 2 and Fig. 4, liquid is poured in the tank of stirrer 90, and, activating axle 92 is rotated, can stir action by the set stirrer in axle 92 bottoms, at this moment, because internal pressure can see through top on axle sleeve 10 flange end 13, and group swivel becket 20 in upwards compressing, interior group retaining ring 30, and spring 52 is arranged on outer group retaining ring 50 bottoms, and be positioned at group retaining ring 30 upsides, then can form reducing of reaction force, therefore for internal pressure, design of the present utility model has the internal pressure of contending with effect and can avoid seepage.

Fig. 2 and shown in Figure 4 for another example, when axle 92 rotations, the circulating liquid of cooling usefulness can be entered by the through hole 44 of sealing cover 40, and the heat that axle 92 rotations are generated is outwards taken out of by opposite side through hole 46 along runner 45, because axle sleeve 10 is fixedly arranged on axle 92, and, body 11 side faces of axle sleeve 10 are provided with multiple row lengthways milling groove 111, therefore, when axle 92 rotations and axle sleeve 10 rotations, the lengthways milling groove 111 that body 11 side faces are laid can form a kind of strength of stirring for circulating liquid, and the speed that can force the circulation of acceleration cycle liquid, add in the runner 45 of top cover labyrinth 40 guide plate 49 is set, and allow the circulating liquid of heat transmission in runner 45, flow fast more smoothly, therefore, design of the present utility model, have excellent thermolysis, and do not need the extra pressure of forcing circulating cooling liquid, promptly can reach hydronic effect.

Claims

1. gland seal device that rotary machine is used, its composition from bottom to top comprises in regular turn: axle sleeve, interior group of swivel becket, interior group of retaining ring, sealing cover, outward organize retaining ring, organize swivel becket and retaining ring structure outward, the groove top that it is arranged on stirrer is characterized in that:

The urgent surface that is cemented in axle of axle sleeve, the body surface of axle sleeve is laid multiple row lengthways milling groove, sealing cover is installed in the groove top, form inward flange and interior clip slot on the ring inner side surface of sealing cover, inward flange and in form in the clip slot around runner, guide plate is set in the runner, the upper wall surface top arranged outside engaging annular groove of sealing cover, both sides, the sealing cover outside is provided with the through hole that runs through in the runner;

The protuberance side face outside and the lower end surface of positioning ring are provided with a plurality of screws, through hole is set in the positioning block, the positioning block top is provided with hook portion, the hook portion of each positioning block can be detained on the engaging annular groove that is held in the sealing cover upper wall surface, and penetrates the through hole of positioning block with bolt and lock fastening in addition in the screw of retaining ring;

Outer group retaining ring top is provided with a plurality of spring seats, spring is set in the spring seat, group retaining ring in outer group retaining ring downside is provided with, interior group retaining ring apical margin forms outwards outstanding flanged lip, and axle sleeve body top outer rim forms flange end, forms caulking groove between the body of flange end and axle sleeve, the flange end interior sidewall surface is provided with annular groove, ring is set in the annular groove, and interior group of swivel becket can snap in the caulking groove, makes the flanged lip driving fit in the flange end top.

2. the gland seal device of using according to the described rotary machine of claim 1 is characterized in that: be provided with O type ring in the set base ring groove in the inward flange of sealing cover, interior clip slot and bottom.

3. the gland seal device of using according to the described rotary machine of claim 1, it is characterized in that: organize the downside that swivel becket is installed in positioning ring outward, outer group swivel becket top is provided with many short slots, and short slot is corresponding to the screw of positioning ring, and the screw that institute's spiral shell is established in screw then supports in the short slot.