CN208605390U - Gland seal device and centrifugal pump - Google Patents
Gland seal device and centrifugal pump Download PDFInfo
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- CN208605390U CN208605390U CN201821378600.1U CN201821378600U CN208605390U CN 208605390 U CN208605390 U CN 208605390U CN 201821378600 U CN201821378600 U CN 201821378600U CN 208605390 U CN208605390 U CN 208605390U
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- gland
- sleeve
- axle sleeve
- airtight
- watertight padding
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Abstract
The utility model provides a kind of gland seal device and centrifugal pump, is related to gland seal device technical field, gland seal device include include axle envelope shell, blade, axle sleeve and gland；Axle sleeve protrudes into sleeve and cyclic structure, and the outer wall of axle sleeve is bonded with the inner wall of cyclic structure, and axle sleeve can be rotated relative to cyclic structure, and axle sleeve is set in transmission shaft for fixation；Blade is arranged on the outer wall of axle sleeve, and blade is arranged in the shape of a spiral around the axis of axle sleeve, and blade is located in the first cavity, the pump chamber that blade is used to that liquid to be driven to flow to centrifugal pump by the first cavity；Airtight and watertight padding is equipped in second cavity, airtight and watertight padding is arranged between axle sleeve and sleeve, and gland is set on axle sleeve, and axle sleeve can be rotated relative to airtight and watertight padding and gland；One end of gland towards airtight and watertight padding is abutted with airtight and watertight padding, and gland is fixedly connected far from one end of airtight and watertight padding with sleeve.The gland seal device is small in size, structure is simple, does not need to cool, be hardly damaged and have preferable sealing effect in operation.
Description
Technical field
The utility model relates to gland seal device technical fields, have this more particularly, to a kind of gland seal device, and one kind
The centrifugal pump of gland seal device.
Background technique
Centrifugal pump is widely used in the industries such as electric power, metallurgy, coal, building materials, and being that plant produced is essential universal sets
It is standby, mainly for delivery of liquid and contain the slurry of solid particle.Centrifugal pump drives the impeller inside pump chamber to revolve by transmission shaft
Turn, so that the medium in pump chamber is obtained kinetic energy in the effect of centrifugal force and is thus transferred out, but the medium in pump chamber is entering pump
It can also be leaked out along the transmission shaft of impeller after chamber, the reduction of centrifugal pump working efficiency is not only caused to also result in pumped (conveying) medium
Loss.
And there are mainly two types of currently used sealing means: mechanical seal relies on the close of the seal face of mechanical seal
Sealing is realized in fitting；Packing seal is also referred to as packing_seal and relies on winding packing or filling between transmission shaft and the gap of pump case
Sealing medium plays the role of preventing leakage.
It is main seal form that mechanical seal at present, which is most widely used, but mechanical seal centrifugal pump vibration it is big,
Under the conditions of the bad working environments such as temperature height be easier damage and mechanical seal construction it is complex, need cooling water system, unit price compared with
Height, interchangeability are poor, and a certain parts damages of machine envelope will often replace a whole set of mechanical seal, cause unnecessary waste and parking damage
It loses.
Utility model content
The purpose of this utility model is to provide a kind of gland seal devices, multiple to solve gland seal device structure in the prior art
It is miscellaneous and the technical issues of need cooling water system.
Gland seal device provided by the utility model, including axle envelope shell, blade, axle sleeve and gland；
The axle envelope shell includes sleeve, and the inner wall of the sleeve is equipped with cyclic structure, and one of the cyclic structure
The inner wall of end face and the sleeve forms the first cavity, another end face of the cyclic structure and the inner wall of the sleeve are formed
Second cavity；
The axle sleeve protrudes into sleeve and cyclic structure, and the outer wall of the axle sleeve is bonded with the inner wall of the cyclic structure,
And the axle sleeve can be rotated relative to the cyclic structure, the axle sleeve is set in transmission shaft for fixation；
The blade is arranged on the outer wall of the axle sleeve, and the blade is arranged in the shape of a spiral around the axis of axle sleeve, and institute
It states blade to be located in the first cavity, the pump chamber that the blade is used to that liquid to be driven to flow to centrifugal pump by the first cavity；
Airtight and watertight padding is equipped in second cavity, the airtight and watertight padding is arranged between the axle sleeve and the sleeve,
The gland is set on the axle sleeve, and the axle sleeve can be rotated relative to the airtight and watertight padding and the gland；
One end of the gland towards airtight and watertight padding is abutted with the airtight and watertight padding, the gland far from airtight and watertight padding one
End is fixedly connected with the sleeve, to compress the airtight and watertight padding.
Further, the sleeve is towards having the first terminal pad on one end of the gland, and the gland is far from described
There is the second terminal pad, first terminal pad and second terminal pad are bolted on one end of sleeve.
Further, the airtight and watertight padding includes sealing medium.
Further, the airtight and watertight padding includes packing.
Further, the blade is an integral structure with the axle sleeve.
Further, the blade is fixedly connected with the axle sleeve.
The purpose of this utility model, which also resides in, provides a kind of centrifugal pump, including shell, transmission shaft and the utility model institute
The gland seal device stated；
The transmission shaft successively stretches out the shell and the gland seal device, and the axle sleeve fixation is set in the transmission shaft
On, the one end of the sleeve far from the gland is fixedly connected with the shell.
Gland seal device provided by the utility model, including axle envelope shell, blade, axle sleeve and gland；The axle envelope shell packet
Sleeve is included, the inner wall of the sleeve is equipped with cyclic structure, an end face of the cyclic structure and the inner wall shape of the sleeve
At the first cavity, another end face of the cyclic structure and the inner wall of the sleeve form the second cavity；The axle sleeve protrudes into
In sleeve and cyclic structure, the outer wall of the axle sleeve is bonded with the inner wall of the cyclic structure, and the axle sleeve can be relative to
The cyclic structure rotation, the axle sleeve are set in transmission shaft for fixation；The outer wall of the axle sleeve is arranged in the blade
On, the blade is arranged in the shape of a spiral around the axis of axle sleeve, and the blade is located in the first cavity, and the blade is for driving
Liquid is flowed to the pump chamber of centrifugal pump by the first cavity；Airtight and watertight padding is equipped in second cavity, the airtight and watertight padding setting exists
Between the axle sleeve and the sleeve, the gland is set on the axle sleeve, and the axle sleeve can be filled out relative to the sealing
Material and gland rotation；One end of the gland towards airtight and watertight padding is abutted with the airtight and watertight padding, and the gland is far from close
One end of packing material is fixedly connected with the sleeve, to compress the airtight and watertight padding.Axle sleeve fixation is set on transmission shaft, is being passed
Moving axis is able to drive axle sleeve rotation to drive the blade on axle sleeve to rotate when rotating, blade will centrifugation in a manner of worm drive
It is transmitted back to the pump chamber of centrifugal pump again along the liquid that transmission shaft leaks in pump, so that sealing function is played, the gland seal device
Small volume, structure is simple, does not need to cool, be hardly damaged and have preferable sealing effect in operation.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of gland seal device provided by the embodiment of the utility model.
Icon: 1- axle envelope shell；2- blade；3- airtight and watertight padding；4- bolt；5- gland；6- axle sleeve；7- is cyclic annular
Structure.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, such as there is term " first ", " second ", being used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Wherein, term " first position " and " second position " are two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The utility model provides a kind of gland seal device and centrifugal pump, and multiple embodiments are given below and mention to the utility model
The gland seal device and centrifugal pump of confession are described in detail.
Embodiment 1
Gland seal device provided in this embodiment includes axle envelope shell 1, blade 2, axle sleeve 6 and gland 5 as shown in Figure 1；Axle envelope
Shell 1 includes sleeve, and the inner wall of sleeve is equipped with cyclic structure 7, and an end face of cyclic structure 7 and the inner wall of sleeve form the
One cavity, another end face of cyclic structure 7 and the inner wall of sleeve form the second cavity；Axle sleeve 6 protrudes into sleeve and cyclic structure 7
In, the outer wall of axle sleeve 6 is bonded with the inner wall of cyclic structure 7, and axle sleeve 6 can be rotated relative to cyclic structure 7, and axle sleeve 6 is used for
Fixation is set on transmission shaft；Blade 2 is arranged on the outer wall of axle sleeve 6, and blade 2 is arranged in the shape of a spiral around the axis of axle sleeve 6, and
Blade 2 is located in the first cavity, the pump chamber that blade 2 is used to that liquid to be driven to flow to centrifugal pump by the first cavity；It is set in second cavity
There is an airtight and watertight padding 3, airtight and watertight padding 3 is arranged between axle sleeve 6 and sleeve, and gland 5 is set on axle sleeve 6, and axle sleeve 6 can be relative to
Airtight and watertight padding 3 and gland 5 rotate；One end of gland 5 towards airtight and watertight padding 3 is abutted with airtight and watertight padding 3, and gland 5 is filled out far from sealing
One end of material 3 is fixedly connected with sleeve, to compress airtight and watertight padding 3.
Specifically, axle envelope shell 1, axle sleeve 6, gland 5 and blade 2 are coaxially disposed, and one end of axle sleeve 6 is located at gland 5
Outside, the other end sequentially pass through gland 5, airtight and watertight padding 3, cyclic structure 7 and the first cavity.Airtight and watertight padding 3 is filled in axle sleeve 6
Between outer wall and the inner wall of the second cavity, gland 5 close to axle envelope shell 1 one end and protrude into the second cavity, and filled out with sealing
Material 3 abuts, and the one end of gland 5 far from axle envelope shell 1 is fixedly connected close to one end of gland 5 with sleeve, fills out to compress sealing
Material 3.When transmission shaft drives axle sleeve 6 to rotate, axle sleeve 6 can be rotated relative to cyclic structure 7, airtight and watertight padding 3 and gland 5.
In use, the fixation of axle sleeve 6 is set on transmission shaft, and axle envelope shell 1 one end and centrifugal pump shell far from gland 5
Body is fixedly connected.One end of transmission shaft is located at outside gland 5, and the other end sequentially passes through gland 5, airtight and watertight padding 3, cyclic structure 7
With the pump chamber for protruding into centrifugal pump after the first cavity, the impeller of centrifugal pump is fixed on transmission shaft, and is located in pump chamber.
Transmission shaft is rotated around the axis of transmission shaft when centrifugal pump operates, so that axle sleeve 6 and blade 2 be driven to rotate, blade 2 will
It is centrifuged in pump chamber along the pump chamber that the liquid that transmission shaft leaks in the first cavity sends centrifugal pump back to again using worm drive, it is few
Position will not flowed into the second cavity by the liquid that blade 2 sends centrifugal pump pump chamber back to, be carried out by the intracorporal airtight and watertight padding 3 of the second chamber
Sealing, to prevent from leaking.The small volume of the gland seal device, structure simply, in operation are not needed to cool, be hardly damaged
And there is preferable sealing effect.
Further, sleeve is towards having the first terminal pad on one end of gland 5, and gland 5 on one end of sleeve far from having
There are the second terminal pad, the first terminal pad and the second terminal pad to connect by bolt 4.
Specifically, the first terminal pad and the coaxial arrangement of the second terminal pad, the first terminal pad are fixed on sleeve close to gland 5
One end, the second terminal pad are fixed on the one end of gland 5 far from sleeve, have gap between the first terminal pad and the second terminal pad,
Second terminal pad be equipped with tapped through hole, the second terminal pad be equipped with tapped blind hole, and bolt 4 can respectively with tapped through hole with
And tapped blind hole is threadedly coupled, bolt 4 protrudes into tapped blind hole after passing through tapped through hole, and screws with tapped blind hole, to make
Sleeve and gland 5 are fixed.
As another embodiment, connector may be screw rod and nut, and the first terminal pad and the second terminal pad are same
Axis setting, the first terminal pad are fixed on sleeve close to one end of gland 5, and the second terminal pad is fixed on one of gland 5 far from sleeve
End has gap, it is logical that screw thread is respectively equipped in the second terminal pad and the second terminal pad between the first terminal pad and the second terminal pad
Hole, and bolt 4 can be threadedly coupled with tapped through hole respectively, one end of screw rod is located at outside the first terminal pad, and the other end is successively
Both ends across the first terminal pad and the second terminal pad, and screw rod are connect with nut thread respectively, and sleeve and gland 5 are consolidated
It is fixed.
Also, the first terminal pad can be connected with the second terminal pad by multiple connectors, and multiple connectors connect along first
Connect the circumferential uniform intervals setting of disk.
Gland 5 includes cricoid first end face close to one end of sleeve, and gland 5 protrudes into the second cavity close to one end of sleeve
In, cricoid first end face and the shape of airtight and watertight padding 3 are mutually adapted, and cricoid first end face is abutted with airtight and watertight padding 3.
Further, airtight and watertight padding 3 may include filler made of sealing medium, also may include packing.
Further, blade 2 can be an integral structure with axle sleeve 6, and blade 2 can also be fixedly connected with axle sleeve 6, such as
Welding or bonding etc..
Gland seal device provided in this embodiment, including axle envelope shell 1, blade 2, axle sleeve 6 and gland 5；Axle envelope shell 1 includes
Sleeve, the inner wall of sleeve are equipped with cyclic structure 7, and an end face of cyclic structure 7 and the inner wall of sleeve form the first cavity, ring
Another end face of shape structure 7 and the inner wall of sleeve form the second cavity；Axle sleeve 6 protrudes into sleeve and cyclic structure 7, axle sleeve 6
Outer wall be bonded with the inner wall of cyclic structure 7, and axle sleeve 6 can be rotated relative to cyclic structure 7, and axle sleeve 6 is arranged for fixation
On transmission shaft；Blade 2 is arranged on the outer wall of axle sleeve 6, and blade 2 is arranged in the shape of a spiral around the axis of axle sleeve 6, and 2, blade
In the pump chamber that in the first cavity, blade 2 is used to that liquid to be driven to flow to centrifugal pump by the first cavity；Sealing is equipped in second cavity to fill out
Material 3, airtight and watertight padding 3 are arranged between axle sleeve 6 and sleeve, and gland 5 is set on axle sleeve 6, and axle sleeve 6 can be relative to airtight and watertight padding
3 and the gland 5 rotate；One end of gland 5 towards airtight and watertight padding 3 is abutted with airtight and watertight padding 3, and gland 5 is far from airtight and watertight padding 3
One end is fixedly connected with sleeve, to compress airtight and watertight padding 3.The fixation of axle sleeve 6 is set on transmission shaft, can in transmission shaft rotation
Drive the rotation of axle sleeve 6 to drive the blade 2 on axle sleeve 6 to rotate, edge in centrifugal pump is driven by blade 2 in a manner of worm drive
The liquid that axis leaks is transmitted back to the pump chamber of centrifugal pump again, so that sealing function is played, the small volume of the gland seal device,
Structure simply, in operation does not need to cool, be hardly damaged and have preferable sealing effect.
Embodiment 2
Centrifugal pump provided in this embodiment, including shell, transmission shaft and gland seal device described in embodiment 1；Transmission shaft
Shell and gland seal device are successively stretched out, the fixation of axle sleeve 6 is set on transmission shaft, and the one end of sleeve far from gland 5 is fixed with shell
Connection.
In use, the fixation of axle sleeve 6 is set on transmission shaft, and axle envelope shell 1 one end and centrifugal pump shell far from gland 5
Body is fixedly connected.One end of transmission shaft is located at outside gland 5, and the other end sequentially passes through gland 5, airtight and watertight padding 3, cyclic structure 7
With the pump chamber for protruding into centrifugal pump after the first cavity, the impeller of centrifugal pump is fixed on transmission shaft, and is located in pump chamber.
Transmission shaft is rotated around the axis of transmission shaft when centrifugal pump operates, so that axle sleeve 6 and blade 2 be driven to rotate, blade 2 will
It is centrifuged in pump chamber along the pump chamber that the liquid that transmission shaft leaks in the first cavity sends centrifugal pump back to again using worm drive, it is few
Position will not flowed into the second cavity by the liquid that blade 2 sends centrifugal pump pump chamber back to, be carried out by the intracorporal airtight and watertight padding 3 of the second chamber
Sealing, to prevent from leaking.The small volume of the gland seal device, structure simply, in operation are not needed to cool, be hardly damaged
And there is preferable sealing effect.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (7)
1. a kind of gland seal device, which is characterized in that including axle envelope shell, blade, axle sleeve and gland；
The axle envelope shell includes sleeve, and the inner wall of the sleeve is equipped with cyclic structure, an end face of the cyclic structure
The first cavity is formed with the inner wall of the sleeve, another end face of the cyclic structure and the inner wall of the sleeve form second
Cavity；
The axle sleeve protrudes into sleeve and cyclic structure, and the outer wall of the axle sleeve is bonded with the inner wall of the cyclic structure, and institute
Stating axle sleeve can rotate relative to the cyclic structure, and the axle sleeve is set in transmission shaft for fixation；
The blade is arranged on the outer wall of the axle sleeve, and the blade is arranged in the shape of a spiral around the axis of axle sleeve, and the leaf
Piece is located in the first cavity, the pump chamber that the blade is used to that liquid to be driven to flow to centrifugal pump by the first cavity；
Airtight and watertight padding is equipped in second cavity, the airtight and watertight padding is arranged between the axle sleeve and the sleeve, described
Gland is set on the axle sleeve, and the axle sleeve can be rotated relative to the airtight and watertight padding and the gland；
One end of the gland towards airtight and watertight padding is abutted with the airtight and watertight padding, the one end of the gland far from airtight and watertight padding with
The sleeve is fixedly connected, to compress the airtight and watertight padding.
2. gland seal device according to claim 1, which is characterized in that the sleeve is towards having on one end of the gland
First terminal pad, has the second terminal pad on the one end of the gland far from the sleeve, first terminal pad and described the
Two terminal pads are bolted.
3. gland seal device according to claim 1, which is characterized in that the airtight and watertight padding includes sealing medium.
4. gland seal device according to claim 1, which is characterized in that the airtight and watertight padding includes packing.
5. gland seal device according to claim 1, which is characterized in that the blade is an integral structure with the axle sleeve.
6. gland seal device according to claim 1, which is characterized in that the blade is fixedly connected with the axle sleeve.
7. a kind of centrifugal pump, which is characterized in that including shell, transmission shaft and axle envelope of any of claims 1-6
Device；
The transmission shaft successively stretches out the shell and the gland seal device, and the axle sleeve fixation is set on the transmission shaft,
The one end of the sleeve far from the gland is fixedly connected with the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378600.1U CN208605390U (en) | 2018-08-24 | 2018-08-24 | Gland seal device and centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378600.1U CN208605390U (en) | 2018-08-24 | 2018-08-24 | Gland seal device and centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208605390U true CN208605390U (en) | 2019-03-15 |
Family
ID=65680568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821378600.1U Active CN208605390U (en) | 2018-08-24 | 2018-08-24 | Gland seal device and centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208605390U (en) |
-
2018
- 2018-08-24 CN CN201821378600.1U patent/CN208605390U/en active Active
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