CN207647787U - A kind of gap is adjustable and the Pulp pump of good airproof performance - Google Patents
A kind of gap is adjustable and the Pulp pump of good airproof performance Download PDFInfo
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- CN207647787U CN207647787U CN201820413794.8U CN201820413794U CN207647787U CN 207647787 U CN207647787 U CN 207647787U CN 201820413794 U CN201820413794 U CN 201820413794U CN 207647787 U CN207647787 U CN 207647787U
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- pump
- water inlet
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- bolt
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Abstract
A kind of gap is adjustable and the Pulp pump of good airproof performance,Including bracket,The pump shaft being set on bracket by bearing housing and the pump head framework for being set to pump shaft end,Bearing housing is provided at both ends with end cap,Pump head framework includes the pump case with water inlet,And it is set to the spiral case in pump case,Apron plate,Rear backplate and it connect impeller with pump shaft end,Spiral case,Apron plate,Rear backplate collectively forms the cavity for housing impeller,The water inlet sheath being sheathed in water inlet is provided on apron plate,One group of horizontally disposed adjusting bolt is connected on apron plate,It is provided with bolt through-hole on the outside of pump case,Adjusting bolt stretches out pump case and passes through bolt through-hole,Adjusting bolt is connect by the adjusting nut positioned at bolt through-hole both sides being arranged thereon with pump case,Pulp pump installation makes simple,And the gap of impeller and apron plate is easy to adjust,It can be realized without shutting down,Adjustment difficulty is simplified.
Description
Technical field
The utility model is related to a kind of pump housing, specifically a kind of gap is adjustable and the Pulp pump of good airproof performance.
Background technology
Pulp pump is chiefly used in conveying the mixture containing solid particle dreggy and water, the gap between impeller and apron plate
Have a significant impact to the performance of Pulp pump, leakage rate increases when gap is excessive, it will cause to export lift reduction, and gap is too small
When, easily cause the friction between sound part, in order to ensure the high-efficiency operation of Pulp pump, must just adjust impeller and apron plate in time
Gap, the method for existing adjustment impeller clearance is required to shut down first and is adjusted again, between booting judges after adjustment
Whether gap is appropriate, needs shutdown adjustment again if inappropriate, complex steps and adjustment component is more, and adjustment difficulty is larger, existing skill
There are no occur without shutting down the method that can be adjusted to impeller clearance in art.
Utility model content
In view of the deficiencies of the prior art, the utility model provides that a kind of gap is adjustable and the Pulp pump of good airproof performance, can
Gap directly between impeller and apron plate is adjusted, and eliminates shutdown booting step, and moving parts is few, adjustment is more
It is convenient.
The technical solution adopted in the utility model is：A kind of gap is adjustable and the Pulp pump of good airproof performance, including bracket, borrows
Bearing housing is helped to be set to the pump shaft on bracket and be set to the pump head framework of pump shaft end, the bearing housing is provided at both ends with end
Lid, the pump head framework include the pump case with water inlet, and be set in pump case spiral case, apron plate, rear backplate and
Impeller is connect with pump shaft end, the spiral case, apron plate, rear backplate collectively form the cavity for housing impeller, described
The water inlet sheath being sheathed in water inlet is provided on apron plate, it is critical that being connected with one group of water on the apron plate
The adjusting bolt of flat setting, pump case outside are provided with bolt through-hole, and adjusting bolt stretches out pump case and passes through bolt through-hole, institute
The adjusting bolt stated is connect by the adjusting nut positioned at bolt through-hole both sides being arranged thereon with pump case.
It is provided on the water inlet sheath and is used to form the first close of water inlet and the sealing structure of water inlet sheath
Unit is sealed, first sealing unit is the sealing ring with first flange, and the end set of the water inlet has ladder
Hole, the sealing ring be sheathed on water inlet sheath and with raised sealing strip, institute are provided on the contact surface of water inlet sheath
The first flange stated is set in stepped hole.
The sealing ring is sheathed on the inside of water inlet sheath, and raised sealing strip is provided on the outer wall of sealing ring.
The sealing ring is sheathed on the outside of water inlet sheath, and raised sealing strip is provided on the inner wall of sealing ring.
It is provided with one group of bearing being sheathed on pump shaft in the bearing housing, is provided between the end cap and pump shaft
Second sealing unit, the third sealing unit being provided on the pump shaft on the inside of bearing, second sealing unit
For magnetic seal, the third sealing unit is the baffle ring for being set on the excircle of pump shaft and being connected with pump shaft.
The 4th sealing unit is provided between the end cap and bearing housing, the 4th sealing unit is on excircle
The axially disposed washer for having annular convex platform.
Be provided with second flange in the rear backplate, second flange be bonded with the inner wall of pump case and by fixation kit with
Pump case connect, the fixation kit include be set on the inner wall of pump case and positioned at second flange outer rim limiting stand, by
Bolt is set to the pressing plate on limiting stand, and the inner wall of the pressing plate and pump case forms the locking mechanism to second flange.
It is provided with the 5th sealing unit between the spiral case and apron plate, it is recessed that the front end of the spiral case is provided with annular
Slot, the 5th sealing unit include the jacking block being set in turn in from front to back in an axial direction in annular groove, gasket, jacking block
The compressing unit of gasket is formed by pump case.
The jacking block is integrated the hold-down bolt being provided on mechanism or pump case for compressing jacking block with pump case.
The beneficial effects of the utility model are：Adjustable bolt is set on apron plate, and adjustable bolt passes through the spiral shell on pump case
It is provided with adjusting nut on bolt via and adjustable bolt, when the gap between apron plate and impeller needs adjustment, loosens adjusting spiral shell
Mother, the adjusting bolt that moves axially back and forth along Pulp pump makes the position of apron plate be subjected to displacement, so that apron plate and impeller
Between gap be optimal, without shut down restart, and only adjust apron plate front and back position, mobile component
Few, adjustment is lighter, and adjustment difficulty is significantly reduced.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment 1.
Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1.
Fig. 3 is the structural schematic diagram of the 4th sealing unit.
Fig. 4 is the enlarged structure schematic diagram of part B in Fig. 1.
Fig. 5 is the enlarged structure schematic diagram of Local C in Fig. 1.
Fig. 6 is the enlarged structure schematic diagram of part D in Fig. 1.
Fig. 7 is the sealed structural representation between apron plate and spiral case in the prior art.
Fig. 8 is the enlarged structure schematic diagram of the local B of embodiment 2.
Fig. 9 is the enlarged structure schematic diagram of the local D of embodiment 2.
In attached drawing, 1, bracket, 2, bearing housing, 3, pump shaft, 4, end cap, 5, water inlet, 6, pump case, 7, spiral case, 8, apron plate,
9, rear backplate, 10, impeller, 11, water inlet sheath, the 12, first sealing unit, 13, adjusting bolt, 14, bolt through-hole, 15, adjust
Save nut, 16, raised sealing strip, 17, bearing, the 19, second sealing unit, 20, third sealing unit, the 21, the 4th sealing unit,
22, stepped hole, 23, boss, 24, second flange, 25, limiting stand, 26, pressing plate, 27, first flange, 28, jacking block, 29, sealing
Pad, 30, hold-down bolt, 31, sealing element.
Specific implementation mode
Adjustable and good airproof performance the Pulp pump the utility model is related to a kind of gap, including bracket 1, set by bearing housing 2
The pump shaft 3 being placed on bracket 1 and the pump head framework for being set to 3 end of pump shaft, the bearing housing 2 are provided at both ends with end cap 4, institute
The pump head framework stated includes the pump case 6 with water inlet 5, and spiral case 7, apron plate 8,9 and of rear backplate being set in pump case 6
Impeller 10 is connect with 3 end of pump shaft, the spiral case 7, apron plate 8, rear backplate 9 collectively form the sky for housing impeller 10
Chamber is provided with the water inlet sheath 11 being sheathed in water inlet 5 on the apron plate 8, it is important to, on the apron plate 8
It is connected with one group of horizontally disposed adjusting bolt 13,6 outside of pump case is provided with bolt through-hole 14, and adjusting bolt 13 is stretched out
Pump case 6 passes through bolt through-hole 14, and the adjusting bolt 13 is by the adjusting spiral shell positioned at 14 both sides of bolt through-hole being arranged thereon
Mother 15 connect with pump case 6.
Embodiment 1 is provided with the adjusting bolt 13 of one group of circular array as shown in Figs. 1-5 on apron plate 8, adjust leaf
When taking turns the gap between 10 and apron plate 8, it is only necessary to loosen two adjusting nuts 15 in each adjusting bolt 13, make 13 edge of adjusting bolt
Pump shaft 3 moves axially back and forth, even if apron plate 8 is moved forward and backward, is adjusted to the adjusting in locking adjusting bolt 13 when suitable distance
Nut 15 is completed to fix, and adjusts difficulty and substantially reduces, without shutting down.
In use, opening motor, Electric-motor driven pumps axis 3 rotates the Pulp pump, and pump shaft 3 is supported by bearing housing 2, axis
Hold the left end that case 2 is located at pump shaft 3, and in bearing housing 2 setting there are two the bearing 17 being set on pump shaft 3, end cap 4 and pump shaft
The second sealing unit 19 is provided between 3, second sealing unit 19 is magnetic seal, and magnetic seal working performance is steady
Fixed, reliable operation, abrasion is low, has longer service life, effectively reduces replacement number, and then extend Pulp pump uses the longevity
Life；The third sealing unit 20 positioned at 17 inside of bearing is additionally provided on pump shaft 3, the third sealing unit 20 is to be set to
The baffle ring being connected on the excircle of pump shaft 3 and with pump shaft 3, is arranged with existing baffle ring between bearing 17 and the shaft shoulder and by bearing
17 modes compressed with the shaft shoulder are compared, and the precision required by third sealing unit 20 is relatively low, and is easily installed, adjusts.
The 4th sealing unit 21 is provided between the end cap 4 and bearing housing 2, the 4th sealing unit 21 is outer
The washer of annular convex platform 23 is provided on circumference in an axial direction, the 4th sealing unit 21 is not only axially disposed at end cap 4 and bearing
Between case 2, annular convex platform 23 thereon is even more on the excircle for being wrapped in bearing housing 2, by end cap 4 to the 4th sealing unit 21
Realize axial compression and the extruding of centripetal direction, the leakage of effective barrier liquid simultaneously.
3 impeller 10 of pump shaft rotates, and the rotation of impeller 10, which forms centrifugal force, makes liquid along water inlet sheath 11 with impeller 10
Movement, and outer rim and capacitation are thrown to from the center of impeller 10, entered in spiral case 7 along spiral case with leaving impeller outer edge at a high speed
On water outlet discharge line.It is provided with the first sealing unit 12 at water inlet sheath 11 and the gap of the installation of water inlet 5, is had
It is the sealing ring with first flange 27 that effect, which prevents the generation of Pulp pump spillage phenomenon under high pressure, first sealing unit 12,
The end set of water inlet 5 has stepped hole 22, sealing ring to be set in the inside of water inlet sheath 11, and first flange 27 is located at ladder
In hole 22, sealing ring that is, on the outer wall of sealing ring, is provided with raised sealing strip 16 on the contact surface of water inlet sheath 11, convex
Playing sealing strip 16 makes the contact area smaller of sealing ring and water inlet sheath 11, and when adjustment is lighter.
Spiral case 7, apron plate 8, rear backplate 9 collectively form the cavity for housing impeller 10, and the circulation for forming liquid is logical
Road, wherein rear backplate 9 are connected with pump case 6, second flange 24 are provided in rear backplate 9, the bottom surface of second flange 24 is fitted in pump
On the inner wall of shell 6, the limiting stand 25 positioned at 24 outer rim of second flange is additionally provided on the inner wall of pump case 6, pressing plate 26 is by bolt
It is arranged on limiting stand 25, pressing plate 26 is contacted with the top surface of second flange 24, and the inner wall of pressing plate 26 and pump case 6 is by second flange 24
It is fixed, forms the locking mechanism of rear backplate 9, since the hardness of rear backplate 9 is big, wearability is high, which eliminates
The setting of prefabricated component, and it is not necessarily to the drilling in rear backplate 9, manufacture craft more simplifies.
The sealing between spiral case 7 and apron plate 8 is the installation by the seal element machining 31 on pump case 6 in the prior art
Slot, in the mounting groove be arranged specific structure sealing element 31, as shown in fig. 7, the end of sealing element 31 respectively with spiral case 7 and before
Backplate 8 contacts, and end of the opening for surrounding spiral case 7 and the contact surface of apron plate 8 is provided on sealing element 31, spiral case 7 is with before
Liquid enters in the opening of sealing element 31 when being leaked between backplate 8, and liquid is prevented to continue to leak, but hard due to pump case 6
Degree is high, and the difficulty of the mounting groove of seal element machining 31 is larger, and the Mold Making difficulty for making the sealing element 31 is big, close using this
Sealing 31 it is of high cost, therefore the 5th sealing unit is provided in the present embodiment between spiral case 7 and apron plate 8, before spiral case 7
End is provided with annular groove, and the 5th sealing unit includes the top being set in turn in from front to back in an axial direction in annular groove
Block 28, gasket 29 are wherein provided with hold-down bolt 30 in an axial direction on pump case 6, are compressed jacking block 28 by hold-down bolt 30 close
Packing 29 ensures the leakproofness of spiral case 7 and apron plate 8 so that difficulty of processing, cost of manufacture are significantly reduced.
Embodiment 2 is substantially the same manner as Example 1, the difference is that, as shown in figure 8, the first sealing unit 12 is to be arranged
Sealing ring in the outside of water inlet sheath 11, raised sealing strip 16 is arranged on the inner wall of sealing ring, as shown in figure 9, jacking block
28 are structure as a whole with pump case 6, eliminate hold-down bolt 30, and it is simpler to be not necessarily to thread mill drilling, process on pump case 6
Just.
The utility model is related to slurry reduce the difficulty of manufacture craft, low manufacture cost, and be easy to adjust, use the longevity
Life is significantly extended.
Claims (9)
1. a kind of gap is adjustable and the Pulp pump of good airproof performance, including bracket (1), it is set on bracket (1) by bearing housing (2)
Pump shaft (3) and be set to the pump head framework of pump shaft (3) end, the bearing housing (2) is provided at both ends with end cap (4), described
Pump head framework include the pump case (6) with water inlet (5), and be set in pump case (6) spiral case (7), apron plate (8),
Rear backplate (9) and impeller (10), the spiral case (7), apron plate (8), rear backplate (9) common structure are connect with pump shaft (3) end
At the cavity for housing impeller (10), the water inlet sheath being sheathed in water inlet (5) is provided on the apron plate (8)
(11), it is characterised in that：One group of horizontally disposed adjusting bolt (13), the pump case are connected on the apron plate (8)
(6) outside is provided with bolt through-hole (14), and adjusting bolt (13) stretches out pump case (6) and passes through bolt through-hole (14), the adjusting
Bolt (13) is connect by the adjusting nut (15) positioned at bolt through-hole (14) both sides being arranged thereon with pump case (6).
2. a kind of gap according to claim 1 is adjustable and the Pulp pump of good airproof performance, it is characterised in that：Described enters water
The first sealing unit of the sealing structure for being used to form water inlet (5) and water inlet sheath (11) is provided on mouth sheath (11)
(12), first sealing unit (12) is the sealing ring with first flange (27), and the end of the water inlet (5) is set
Be equipped with stepped hole (22), the sealing ring be sheathed on water inlet sheath (11) and on the contact surface of water inlet sheath (11)
It is provided with raised sealing strip (16), the first flange (27) is set in stepped hole (22).
3. a kind of gap according to claim 2 is adjustable and the Pulp pump of good airproof performance, it is characterised in that：The sealing
Snare is set to the inside of water inlet sheath (11), and raised sealing strip (16) is provided on the outer wall of sealing ring.
4. a kind of gap according to claim 2 is adjustable and the Pulp pump of good airproof performance, it is characterised in that：The sealing
Snare is set to the outside of water inlet sheath (11), and raised sealing strip (16) is provided on the inner wall of sealing ring.
5. according to claim a kind of gap is adjustable and the Pulp pump of good airproof performance, it is characterised in that：The bearing housing
(2) it is provided with one group of bearing (17) being sheathed on pump shaft (3) in, second is provided between the end cap (4) and pump shaft (3)
Sealing unit (19), the third sealing unit (20) being provided on the pump shaft (3) on the inside of bearing (17), described
Two sealing units (19) be magnetic seal, the third sealing unit (20) be set on the excircle of pump shaft (3) and with
The connected baffle ring of pump shaft (3).
6. a kind of gap according to claim 1 is adjustable and the Pulp pump of good airproof performance, it is characterised in that：The end cap
(4) the 4th sealing unit (21) is provided between bearing housing (2), the 4th sealing unit (21) is excircle upper edge axis
To the washer for being provided with annular convex platform (23).
7. a kind of gap according to claim 1 is adjustable and the Pulp pump of good airproof performance, it is characterised in that：The rear shield
Second flange (24) is provided on plate (9), second flange (24) is bonded and with the inner wall of pump case (6) by fixation kit and pump case
(6) it connects, the fixation kit includes being set on the inner wall of pump case (6) and positioned at the limiting stand of second flange (24) outer rim
(25), it is set to the pressing plate (26) on limiting stand (25) by bolt, the inner wall of the pressing plate (26) and pump case (6) is formed pair
The locking mechanism of second flange (24).
8. a kind of gap according to claim 1 is adjustable and the Pulp pump of good airproof performance, it is characterised in that：The spiral case
(7) the 5th sealing unit is provided between apron plate (8), the front end of the spiral case (7) is provided with annular groove, described
5th sealing unit includes the jacking block (28) being set in turn in from front to back in an axial direction in annular groove, gasket (29), jacking block
(28) compressing unit of gasket (29) is formed by pump case (6).
9. a kind of gap according to claim 8 is adjustable and the Pulp pump of good airproof performance, it is characterised in that：The jacking block
(28) it is integrated the hold-down bolt (30) being provided on mechanism or pump case (6) for compressing jacking block (28) with pump case (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820413794.8U CN207647787U (en) | 2018-03-26 | 2018-03-26 | A kind of gap is adjustable and the Pulp pump of good airproof performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820413794.8U CN207647787U (en) | 2018-03-26 | 2018-03-26 | A kind of gap is adjustable and the Pulp pump of good airproof performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207647787U true CN207647787U (en) | 2018-07-24 |
Family
ID=62876482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820413794.8U Active CN207647787U (en) | 2018-03-26 | 2018-03-26 | A kind of gap is adjustable and the Pulp pump of good airproof performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207647787U (en) |
-
2018
- 2018-03-26 CN CN201820413794.8U patent/CN207647787U/en active Active
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