CN209398638U - That improves ease of use subtracts gland equipment - Google Patents
That improves ease of use subtracts gland equipment Download PDFInfo
- Publication number
- CN209398638U CN209398638U CN201822274646.5U CN201822274646U CN209398638U CN 209398638 U CN209398638 U CN 209398638U CN 201822274646 U CN201822274646 U CN 201822274646U CN 209398638 U CN209398638 U CN 209398638U
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- annular groove
- axis
- hole
- load
- cell wall
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Abstract
Subtract gland equipment the utility model discloses raising ease of use, including the decompression lid being set on Pulp pump axis body, rear backplate, sealing ring, load-carrying ring is provided in rear backplate, one end of load-carrying ring is connect with rear backplate, the other end of load-carrying ring and decompression cover one end close to rear backplate and are respectively provided with that there are two annular grooves, annular groove on load-carrying ring distinguishes the first outer annular groove and the first interior annular groove, depressurizing the annular groove covered is respectively the second outer annular groove and the second interior annular groove, sealing ring is rectangular seal, left annular groove is provided with close to the one end covered is depressurized at it, one end of rear backplate is provided with right annular groove at it, the two sides cell wall of left annular groove is inserted into respectively in the second outer annular groove and the second interior annular groove, the cell wall of right annular groove two sides is inserted into respectively in the first outer annular groove and the first interior annular groove.The utility model significantly reduces the utility model later maintenance frequency, improves and subtracts the convenience that gland equipment uses.
Description
Technical field
The utility model relates to pump housing fields, in particular to that improves ease of use subtracts gland equipment.
Background technique
Pulp pump belongs to centrifugal pump from working principle, refers to the impeller by by centrifugal force, that is, pumping in concept
The effect of rotation make a kind of increased machinery of solid, liquid blending agent energy, be a kind of kinetic energy for converting electric energy to medium and
The equipment of potential energy.Pulp pump is primarily adapted for use in the industry fields such as mine, power plant, dredging, metallurgy, chemical industry, building materials and petroleum.Slurry
The title of pump is a kind of centrifugal pump divided from the angle of pumped (conveying) medium.
Conventional Pulp pump decompression lid with rear backplate seal face structure as shown in Figure 1, mainly by decompression lid, sealing ring and after
Backplate composition.Sealing ring is O-ring seal, mounting means be mainly to process one with the sealing surface of rear backplate in decompression lid
Sealing ring, is then placed in annular groove by the annular groove for placing sealing ring.What it is due to Pulp pump conveying is all containing particle, abrasion
The stronger medium of property, and rear backplate then belongs to one in the big vulnerable part of Pulp pump six.Therefore it processes and puts in rear backplate
The sulculus of sealing ring is set, this can not only reduce the intensity of rear backplate.And Pulp pump conveying is all the stronger medium of abrasiveness,
Medium can constantly wear the flow passage components such as decompression lid, rear backplate, and conventional Pulp pump decompression lid and rear backplate are sealed with sealing ring
When, since the sealing surface of decompression lid and rear backplate contact is small, this easilys lead to sealing surface and wears away under the action of medium, from
And effective Sealing period is not achieved, influence overall operation performance and the service life of pump.
Summary of the invention
The purpose of this utility model is that: provide raising ease of use subtracts gland equipment, solves existing subtract
The problem that the wear resistance of the sealing structure of gland and rear backplate composition is poor, effective Sealing period is short.Therefore the utility model
The raising ease of use of design subtracts gland equipment, by the structure of sealing surface between change decompression lid and rear backplate, and sets
The sealing ring with multi-layer sealing structure is set, the abrasion resistance of decompression lid and the sealing structure of rear backplate composition is being improved, is protecting
On the basis of having demonstrate,proved the projected life that effective Sealing period meets pump entirety, the utility model later maintenance frequency is significantly reduced
Rate ensure that the stability for subtracting gland equipment work, improve and subtract the convenience that gland equipment uses.
The technical solution adopted in the utility model is as follows:
It improves ease of use and subtracts gland equipment, including the decompression lid being set on Pulp pump axis body and rear backplate,
It is provided with sealing ring on contact surface between the decompression lid and rear backplate, close to the side of decompression lid in the rear backplate
It is provided with load-carrying ring, the axis of the load-carrying ring is overlapped with the axis of axis body, and one end of load-carrying ring is connect with rear backplate, load-carrying ring
The other end and decompression cover one end close to rear backplate and be respectively provided with that there are two annular groove, the axis and axis body of the annular groove
Axis be overlapped, two annular grooves on load-carrying ring are respectively the first outer annular groove and the first annular that outer diameter is sequentially reduced
Slot, depressurizing two annular grooves covered is respectively the second outer annular groove and the second interior annular groove that outer diameter is sequentially reduced, described close
Seal is rectangular seal, is provided with left annular groove close to the one end covered is depressurized at it, at it close to the setting of one end of rear backplate
There is right annular groove, the two sides cell wall of the left annular groove is inserted into respectively in the second outer annular groove and the second interior annular groove, the right side
The cell wall of annular groove two sides is inserted into respectively in the first outer annular groove and the first interior annular groove.
Sealing ring in the utility model is in compressive state at work, i.e., sealing ring with the outer diameter contacted,
Interference fit state is between internal diameter.
In the utility model, there is the sealing ring of left annular groove and right annular groove by being arranged, so that the periphery of sealing ring
Circle is once sealing, and inner circumferential circle seals for second.For the sealing ring for directlying adopt condition of equivalent thickness, since quantitative change is drawn
It rises for the conventional rule of qualitative change, when sealing ring is tentatively worn, impaired face is smaller, is reduced slowly using birthday noodle, is used
After a period of time, the impaired face of sealing ring can be increased dramatically, and can be die-offed using birthday noodle, therefore directly adopt the sealing of conventional structure
Circle is provided with this defect, even if merely increasing sealing ring thickness, can not still eliminate drawbacks described above.And in the utility model,
When seal ring with outer week, position was worn, even if producing, impaired face be increased dramatically, the service life die-offs, but will not inner seal ring
Inner periphery position has an impact, therefore the utility model has stable secondary seal performance.
Meanwhile the utility model inner periphery and excircle link together, and the connecting portion between it be work when, work
The most severe position of condition is born axial stress and is concentrated, and excircle position still suffers from the abrasion of slurry.Therefore directly
When carrying out secondary seal using two layers of independent sealing ring, it cannot steadily guarantee the intensity at sealing ring operating condition sternness position, and
The utility model strengthens the intensity at operating condition sternness position for simply two layers of mutual independent sealing ring of setting,
Improve the service life of sealing ring entirety.
To sum up, the utility model is improving the abrasion resistance for the sealing structure that decompression lid is formed with rear backplate, ensure that
On the basis of effective Sealing period meets pump whole projected life, the utility model later maintenance frequency is significantly reduced,
It ensure that the stability for subtracting gland equipment work, improve and subtract the convenience that gland equipment uses.
Due to using the technical program, the beneficial effects of the utility model are:
1. the utility model raising ease of use subtracts gland equipment, relative to the sealing ring for directlying adopt condition of equivalent thickness
For, since quantitative change causes for the conventional rule of qualitative change, when sealing ring is tentatively worn, impaired face is smaller, uses the longevity
Face reduces slowly, and after a period of use, the impaired face of sealing ring can increased dramatically, and can be die-offed using birthday noodle, therefore directly adopt
It is provided with this defect with the sealing ring of conventional structure, even if merely increasing sealing ring thickness, can not still eliminate drawbacks described above.
And in the utility model, when seal ring with outer week, position was worn, even if producing, impaired face be increased dramatically, the service life die-offs,
But will not inner seal ring inner periphery position have an impact, therefore the utility model has stable secondary seal performance；
2. the utility model raising ease of use subtracts gland equipment, the utility model inner periphery and excircle are connected to
Together, when the connecting portion and between it is work, the most severe position of operating condition is born axial stress and is concentrated, and outer
Circumferential location still suffers from the abrasion of slurry；When therefore directlying adopt two layers of independent sealing ring progress secondary seal, Bu Nengwen
Surely guarantee the intensity at sealing ring operating condition sternness position, and the utility model is independent close mutually relative to two layers of simple setting
For seal, the intensity at operating condition sternness position is strengthened, improves the service life of sealing ring entirety.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of this utility model embodiment, will make below to required in embodiment
Attached drawing is briefly described, it should be understood that the following drawings illustrates only some embodiments of this utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings, in which:
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the main view of decompression lid；
Fig. 4 is the structural schematic diagram of decompression lid；
Fig. 5 is the structural schematic diagram of rear backplate；
Fig. 6 is the structural schematic diagram of sealing ring；
The utility model；
Fig. 2 is the utility model；
Numbering in the drawing explanation:
1- axis body, 2- decompression lid, 3- rear backplate, 4- sealing ring, 5- load-carrying ring, the first outer annular groove of 6-, the first inner ring of 7-
Shape slot, the second outer annular groove of 8-, the second interior annular groove of 9-, the left annular groove of 10-, the right annular groove of 11-, the first arc surface of 12-, 13-
Second arc surface, the left arc surface of 14-, the right arc surface of 15-, 16- through-hole, 17- relief hole, 18- support bar.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated this utility model.It should be appreciated that specific embodiment described herein is only to explain
This utility model is not used to limit this utility model, i.e. described embodiment is only this utility model one
Divide embodiment, instead of all the embodiments.This utility model embodiment being usually described and illustrated herein in the accompanying drawings
Component can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of this embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
This scope of the utility model of protection is sought, but is merely representative of the selected embodiment of this utility model.It is practical based on book
Novel embodiment, those skilled in the art's every other implementation obtained without making creative work
Example, belongs to the range of book utility model protection.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It elaborates below with reference to Fig. 1 to Fig. 6 to the utility model.
Embodiment 1
As shown in figs 1 to 6, the utility model improves ease of use and subtracts gland equipment, including is set in Pulp pump
Decompression lid 2 and rear backplate 3 on axis body 1 are provided with sealing ring 4 on the contact surface depressurized between lid 2 and rear backplate 3,
The side of decompression lid 2 is provided with load-carrying ring 5, the axis of the load-carrying ring 5 and the axis of axis body 1 in the rear backplate 3
It is overlapped, one end of load-carrying ring 5 is connect with rear backplate 3, close to one end of rear backplate 3 on the other end and decompression lid 2 of load-carrying ring 5
It is respectively provided with there are two annular groove, the axis of the annular groove is overlapped with the axis of axis body 1, two on load-carrying ring 5 annular groove point
Not Wei the first outer annular groove 6 for being sequentially reduced of outer diameter and the first interior annular groove 7, it is respectively outer for depressurizing two annular grooves on lid 2
The second outer annular groove 8 and the second interior annular groove 9 that diameter is sequentially reduced, the sealing ring 4 are rectangular seal, at it close to decompression
One end of lid 2 is provided with left annular groove 10, and one end of rear backplate 3 is provided with right annular groove 11, the left annular groove at it
10 two sides cell wall is inserted into respectively in the second outer annular groove 8 and the second interior annular groove 9, the cell wall point of right 11 two sides of annular groove
It is not inserted into the first outer annular groove 6 and the first interior annular groove 7.
Sealing ring 4 in the utility model is in compressive state at work, i.e. sealing ring 4 is outer with what is contacted
Interference fit state is between diameter, internal diameter.
In the utility model, there is the sealing ring of left annular groove 10 and right annular groove 11 by being arranged, so that sealing ring 4
Periphery circle is once sealing, and inner circumferential circle seals for second.For the sealing ring for directlying adopt condition of equivalent thickness, due to amount
Become for the conventional rule for causing qualitative change, when sealing ring is tentatively worn, impaired face is smaller, reduced slowly using birthday noodle,
After a period of use, the impaired face of sealing ring can increased dramatically, and can be die-offed using birthday noodle, therefore directly adopt conventional structure
Sealing ring is provided with this defect, even if merely increasing sealing ring thickness, can not still eliminate drawbacks described above.And the utility model
In, when seal ring with outer week, position was worn, even if producing, impaired face be increased dramatically, the service life die-offs, but will not be interior close
Seal inner periphery position has an impact, therefore the utility model has stable secondary seal performance.
Meanwhile the utility model inner periphery and excircle link together, and the connecting portion between it be work when, work
The most severe position of condition is born axial stress and is concentrated, and excircle position still suffers from the abrasion of slurry.Therefore directly
When carrying out secondary seal using two layers of independent sealing ring, it cannot steadily guarantee the intensity at sealing ring operating condition sternness position, and
The utility model strengthens the intensity at operating condition sternness position for simply two layers of mutual independent sealing ring of setting,
Improve the service life of sealing ring entirety.
To sum up, the utility model is improving the abrasion resistance for the sealing structure that decompression lid is formed with rear backplate, ensure that
On the basis of effective Sealing period meets pump whole projected life, the utility model later maintenance frequency is significantly reduced,
It ensure that the stability for subtracting gland equipment work, improve and subtract the convenience that gland equipment uses.
Further, round and smooth by the first arc surface 12 of evagination close to the cell wall of 1 axis of axis body in the first outer annular groove 6
It is transitioned on the cell wall on the first interior annular groove 7 far from 1 axis of axis body, close to the cell wall of 1 axis of axis body in the second outer annular groove 8
On cell wall by 1 axis of axis body separate on 13 rounding off of the second arc surface to the second interior annular groove 9 of evagination, the left ring
The slot bottom of shape slot 10 and right annular groove 11 is interior to be recessed into arc surface, respectively left arc surface 14 and right arc surface 15, when left annular
When the two sides cell wall of slot 10 is inserted into respectively in the second outer annular groove 8 and the second interior annular groove 9, the first arc surface 12 is inscribed within left circle
When the cell wall of cambered surface 14, right 11 two sides of annular groove is inserted into respectively in the first outer annular groove 6 and the first interior annular groove 7, second
Arc surface 13 is inscribed within right arc surface 15.
Rounding off is carried out by the way that arc surface is arranged in corresponding position, corresponding position is significantly improved and is held at work
The stress received prevents the generation for a problem that being broken.
Further, the through-hole 16 cooperated on the decompression lid 2 with axis body 1 is provided with close to the side of rear backplate 3 to be allowed
Position hole 17, the relief hole 17 and through-hole 16 are coaxial, and the aperture of relief hole 17 is greater than the aperture of through-hole 16, sets in relief hole
It is equipped with several support bars 18, the axis of the axis of the support bar 18 perpendicular to through-hole 16, the side of support bar 18 and resigning
The bottom hole in hole 17 connects.
The setting of relief hole 17 is the weight in order to reduce decompression lid, consequently facilitating the work of Pulp pump.When relief hole 17
When aperture difference between through-hole 16 is larger, the bottom hole of relief hole 17 is also easy to produce crackle, therefore support bar 18 is arranged and is allowed with increasing
The intensity of 17 bottom hole of position hole.
Further, the side on the support bar 18 far from 16 axis of through-hole is connect with the hole wall of relief hole 17, is propped up
The other side of stay 18 is interior to be recessed into cylindrical radial face, throwing of each cylindrical radial face in the plane perpendicular to 16 axis of through-hole
The camber line of shadow is on the same circumference, and the center of circle of the circumference is located on the axis of through-hole 16.
Preferably, there are six the support bars 18, and it is symmetrical along the axis centre of through-hole 16.
Further, the outer diameter of the decompression lid is consistent with the outer diameter of load-carrying ring 5, the aperture of relief hole 17 and load-carrying ring 5
Internal diameter it is consistent.This programme is more equal to subtract the stress for bearing sealing surface in the axial direction by the way that matched internal diameter, outer diameter is arranged
It is even, the case where stress is concentrated will not be generated.
Working principle/the course of work of the utility model are as follows:
The above, only preferred embodiments of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art, can be without creative labor in the technical scope disclosed by the utility model
The dynamic change or replacement expected, should be covered within the scope of the utility model.Therefore, the protection model of the utility model
Enclosing be determined by the scope of protection defined in the claims.
Claims (6)
1. that improves ease of use subtracts gland equipment, the decompression lid (2) including being set on Pulp pump axis body (1) and rear shield
Plate (3) is provided with sealing ring (4) on the contact surface that the decompression is covered between (2) and rear backplate (3), it is characterised in that: in institute
It states the side on rear backplate (3) close to decompression lid (2) to be provided with load-carrying ring (5), the axis of the load-carrying ring (5) and axis body (1)
Axis be overlapped, one end of load-carrying ring (5) connect with rear backplate (3), the other end of load-carrying ring (5) and depressurizes to cover on (2) and leans on
One end of nearly rear backplate (3) is respectively provided with there are two annular groove, and the axis of the annular groove is overlapped with the axis of axis body (1), is carried
Two annular grooves on ring (5) are respectively the first outer annular groove (6) and the first interior annular groove (7) that outer diameter is sequentially reduced, decompression
Two annular grooves on lid (2) are respectively the second outer annular groove (8) and the second interior annular groove (9) that outer diameter is sequentially reduced, described
Sealing ring (4) is rectangular seal, is provided with left annular groove (10) close to the one end for covering (2) is depressurized at it, at it close to rear shield
One end of plate (3) is provided with right annular groove (11), and the two sides cell wall of the left annular groove (10) is inserted into the second outer annular groove respectively
(8) and in the second interior annular groove (9), the cell wall of right annular groove (11) two sides is inserted into the first outer annular groove (6) and respectively
In one interior annular groove (7).
2. raising ease of use according to claim 1 subtracts gland equipment, it is characterised in that: the first outer annular groove
(6) on the first arc surface (12) rounding off to the first interior annular groove (7) that the cell wall of axis body (1) axis passes through evagination
On cell wall far from axis body (1) axis, pass through the second of evagination close to the cell wall of axis body (1) axis in the second outer annular groove (8)
On cell wall on arc surface (13) rounding off to the second interior annular groove (9) far from axis body (1) axis, the left annular groove (10)
With the slot bottom of right annular groove (11) in be recessed into arc surface, respectively left arc surface (14) and right arc surface (15), when left annular
When the two sides cell wall of slot (10) is inserted into respectively in the second outer annular groove (8) and the second interior annular groove (9), in the first arc surface (12)
It is cut in left arc surface (14), the cell wall of right annular groove (11) two sides is inserted into the first outer annular groove (6) and the first inner ring respectively
When in shape slot (7), the second arc surface (13) is inscribed within right arc surface (15).
3. raising ease of use according to claim 1 subtracts gland equipment, it is characterised in that: covered in the decompression
(2) through-hole (16) on axis body (1) cooperation is provided with relief hole (17), the relief hole close to the side of rear backplate (3)
(17) coaxially with through-hole (16), and the aperture of relief hole (17) is greater than the aperture of through-hole (16), is provided in relief hole several
A support bar (18), the axis of the axis of the support bar (18) perpendicular to through-hole (16), the side of support bar (18) and resigning
The bottom hole in hole (17) connects.
4. raising ease of use according to claim 3 subtracts gland equipment, it is characterised in that: the support bar (18)
The upper side far from through-hole (16) axis is connect with the hole wall of relief hole (17), and the other side of support bar (18) is interior to be recessed into circle
The camber line of column arcwall face, projection of each cylindrical radial face in the plane perpendicular to through-hole (16) axis is in the same circle
The center of circle of Zhou Shang, the circumference are located on the axis of through-hole (16).
5. raising ease of use according to claim 3 or 4 subtracts gland equipment, it is characterised in that: the support bar
(18) there are six, and it is symmetrical along the axis centre of through-hole (16).
6. raising ease of use according to claim 3 or 4 subtracts gland equipment, it is characterised in that: the decompression lid
Outer diameter it is consistent with the outer diameter of load-carrying ring (5), the aperture of relief hole (17) is consistent with the internal diameter of load-carrying ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274646.5U CN209398638U (en) | 2018-12-29 | 2018-12-29 | That improves ease of use subtracts gland equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274646.5U CN209398638U (en) | 2018-12-29 | 2018-12-29 | That improves ease of use subtracts gland equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398638U true CN209398638U (en) | 2019-09-17 |
Family
ID=67897513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822274646.5U Expired - Fee Related CN209398638U (en) | 2018-12-29 | 2018-12-29 | That improves ease of use subtracts gland equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209398638U (en) |
-
2018
- 2018-12-29 CN CN201822274646.5U patent/CN209398638U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20191229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |