CN210152988U - L-shaped sealing and centering device for pump - Google Patents
L-shaped sealing and centering device for pump Download PDFInfo
- Publication number
- CN210152988U CN210152988U CN201920893515.7U CN201920893515U CN210152988U CN 210152988 U CN210152988 U CN 210152988U CN 201920893515 U CN201920893515 U CN 201920893515U CN 210152988 U CN210152988 U CN 210152988U
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- shaped plate
- stuffing box
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Abstract
The utility model relates to a L-shaped sealing centering device for a pump, which is used for installing the sealing filler device of a slurry pump, the sealing filler device comprises a filler shaft sleeve matched with the pump shaft of the slurry pump, a filler box and a filler arranged between the filler shaft sleeve and the filler box, the centering device comprises an arc plate and an ejection unit, wherein the inner circle of the arc plate is matched with the outer wall of the filler shaft sleeve, the outer circle of the arc plate is matched with the inner wall of the filler box, the ejection unit is arranged on the arc plate, the arc plate is in a minor arc shape, the outer circle of the arc plate is provided with a bulge vertical to the axis of the arc plate, the bulge and the arc plate form a structure with an L-shaped cross section, the ejection unit comprises a group of ejection bolts, the ejection bolts are arranged on the bulge and matched with the side wall of the filler box, the installation screw holes of the ejection bolts are arranged on the bulge, effectively prolong the service life of the pump body.
Description
Technical Field
The utility model belongs to the technical field of the installation of sediment stuff pump, a centring means is related to, specifically speaking is a centring means is sealed to L type for pump.
Background
The slurry pump is mainly used for conveying a mixture of solid particles containing dregs and water, a packing box is arranged on the slurry pump and consists of a packing ring, a packing shaft sleeve, a packing ring and a packing gland during the sealing of a packing device on the slurry pump, one end of the excircle of the packing box is in sealing connection with a fixed lining plate, the other end of the excircle of the packing box is in fixed connection with a pump body, the inner circle of the excircle of the packing box is in fixed connection with a pump shaft through the packing shaft sleeve, the packing ring is sleeved on the packing shaft sleeve, the packing ring and the packing gland are used for sealing when the slurry pump works normally, the liquid in the pump body is ensured not. The installation concentricity between stuffing box and the axle sleeve that packs requires highly in the installation, and current mounting means sets up a plurality of shaft holes on fixed welt, the stuffing box usually, passes the shaft hole with the help of a plurality of bolts and installs, but the installation error easily appears in the stuffing box, in case the stuffing box takes place the skew, then causes the inhomogeneous setting of packing easily, and even the eccentric wear of bearing reduces the life of the pump body.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a pump is with sealed centring means of L type makes the sealed packing device installation of sediment stuff pump swiftly convenient, and the installation precision of especially the stuffing box is high, prevents the production of eccentric wear, effectively prolongs the life of the pump body.
The utility model adopts the technical proposal that:
the utility model provides a centering device is sealed to L type for pump for the installation of the sealed packing device of sediment stuff pump, the sealed packing device include with the supporting filler axle sleeve of the pump shaft of sediment stuff pump, the stuffing box and set up the filler between filler axle sleeve and stuffing box, the key lies in, this centering device includes that the arc that the outer wall of interior circle and filler axle sleeve matches the setting, the excircle matches the setting with the inner wall of stuffing box and sets up the ejecting unit on the arc, the arc be minor arc.
The outer circle of the arc plate is provided with a bulge perpendicular to the axis of the arc plate, the bulge and the arc plate form a structure with an L-shaped cross section, the ejection unit comprises a group of ejection bolts arranged on the bulge and matched with the side wall of the stuffing box, and the bulge is provided with installation threaded holes of the ejection bolts.
The bulge is positioned at one end of the arc-shaped plate far away from the stuffing box.
A group of notches are arranged on the arc-shaped plate at intervals along the circumferential direction of the arc-shaped plate to form a saw-toothed structure.
The utility model has the advantages that: the arc-shaped plate with the inferior arc shape is easy to be sleeved on the packing shaft sleeve and is convenient to take down, the inner circle is matched with the outer wall of the packing shaft sleeve, and the outer circle is matched with the inner wall of the packing box, so that the distance between the packing box and the packing shaft sleeve is limited, namely the thickness of the packing between the packing box and the packing shaft sleeve is limited, the thickness of the packing between the packing box and the packing shaft sleeve is uniform and consistent, the eccentric wear is effectively prevented, and the sealing effect is improved; the arc is injectd the stuffing box for the position of filler axle sleeve, can install the stuffing box effectively with fixed welt fixed, reduces the assembly degree of difficulty, improves installation accuracy and speed.
Drawings
Fig. 1 is a schematic structural view of the centering device of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a schematic structural view of a slurry pump.
Fig. 4 is an enlarged schematic view of a part Z.
FIG. 5 is a schematic view of a portion Z in step A.
FIG. 6 is a schematic view of a portion Z in step B.
Fig. 7 is a schematic view of the L-shaped seal centering device in a state where it is drawn out of the stuffing box.
In the attached drawing, the pump comprises a pump shaft 1, a pump shaft 2, a packing shaft sleeve 3, a packing box 4, packing 5, an arc-shaped plate 6, a bulge 7, an ejection bolt 9, a notch 10, a sawtooth structure 11 and a fixed lining plate.
Detailed Description
The utility model relates to a centering device is sealed to L type for pump for the installation of the sealed packing device of sediment stuff pump, the sealed packing device include with 1 supporting packing axle sleeve 2 of pump shaft of sediment stuff pump, stuffing box 3 and set up in packing 4 between packing axle sleeve 2 and stuffing box 3, the key is, this centering device includes that the inner circle sets up with the outer wall of packing axle sleeve 2 is supporting, the outer circle sets up 5 arc and the ejecting unit that sets up on 5 arcs with the inner wall of stuffing box 3, 5 arcs be minor arcs.
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
In a specific embodiment, as shown in fig. 1 to 7, a protrusion 6 perpendicular to an axis of the arc plate 5 is disposed on an outer circle of the arc plate 5, the protrusion 6 and the arc plate 5 form a structure with an L-shaped cross section, the ejection unit includes a set of ejection bolts 7 disposed on the protrusion 6 and matched with a sidewall of the stuffing box 3, a mounting threaded hole of the ejection bolt 7 is disposed on the protrusion 6, the protrusion 6 is disposed on one side of the arc plate 5 away from the stuffing box 3, the ejection bolt 7 is mounted on the protrusion 6 along an axial direction of the pump shaft 1, after the stuffing box 3 is mounted, the ejection bolt 7 is rotated, a thrust along the axial direction of the pump shaft 1 is generated between the ejection bolt 7 and the sidewall of the stuffing box 3, and the arc plate 5 can be pulled out in a direction away from the stuffing box 3.
The arc-shaped plate 5 is provided with a group of notches 9 at intervals along the circumferential direction to form a saw-toothed structure 10, so that the matching area between the arc-shaped plate 5 and the outer wall of the packing shaft sleeve 2 and between the arc-shaped plate and the inner wall of the packing box 3 is reduced, the effective supporting and positioning of the packing box 3 can be ensured, and the processing difficulty is reduced. In this embodiment, two notches 9 are arranged on the arc plate 5 at intervals, so that the outermost side and the middle position of the arc plate 5 are effectively matched with the stuffing box 3, and the supporting effect at three positions is good.
The application method of the L-shaped sealing centering device for the pump comprises the following specific steps:
A. the method comprises the following steps that a slurry pump is preassembled, when a packing box 3 is required to be installed, a packing shaft sleeve 2 is installed on a pump shaft 1, an arc-shaped plate 5 is sleeved on the outer wall of the packing shaft sleeve 2, and the inner wall of the arc-shaped plate 5 is attached to the outer wall of the packing shaft sleeve 2; the arc-shaped plate 5 is in a minor arc shape, namely the central angle corresponding to the arc-shaped plate 5 is less than 180 degrees, and the arc-shaped plate is easy to place on the packing shaft sleeve 2, easy to take down and convenient to disassemble and assemble;
B. sleeving the stuffing box 3 on the excircle of the arc-shaped plate 5, and attaching the stuffing box 3 to the excircle of the arc-shaped plate 5, namely, the thickness of the arc-shaped plate 5 forms a gap between the stuffing box 3 and the stuffing shaft sleeve 2, so that the stuffing box 3 and the stuffing shaft sleeve 2 keep accurate concentricity, the position of the stuffing box 3 relative to the stuffing shaft sleeve 2 is limited, the stuffing box 3 is prevented from deviating when being fixed with the fixed lining plate 11, and the stuffing thickness between the stuffing box 3 and the stuffing shaft sleeve 2 is ensured to be uniform;
C. a fixed lining plate 11 is arranged at the right end of a stuffing box 3 on a pump shaft 1, the fixed lining plate 11 is positioned by means of a joint plate, a threaded hole is arranged on the fixed lining plate 11, an installation through hole matched with the threaded hole is arranged on the stuffing box 3, the size of the installation through hole is larger than that of the threaded hole, a bolt can quickly penetrate through the installation through hole to be matched with the threaded hole, but the stuffing box 3 is easy to deflect, in the application, the centering device is adopted to pre-position the stuffing box 3, the position of the stuffing box 3 is fixed, the precision is high, the fixed lining plate 11 is rotated, so that the mounting through hole in the stuffing box 3 corresponds to the threaded hole in the fixed lining plate 11, the bolt is rotated to enable the bolt to enter the threaded hole in the fixed lining plate 11 from the mounting through hole in the stuffing box 3, the stuffing box 3 and the fixed lining plate 11 are locked and fixed, and even if the position of the stuffing box 3 relative to the stuffing shaft sleeve 2 is fixed;
D. the arc-shaped plate 5 is drawn out of the stuffing box 3 along the axial direction of the arc-shaped plate by virtue of an ejection unit, specifically, the arc-shaped plate 5 can be drawn out in the direction far away from the stuffing box 3 by rotating an ejection bolt 7 and generating thrust along the axial direction of the pump shaft 1 between the ejection bolt 7 and the side wall of the stuffing box 3;
E. then, an impeller, a pump body, a bush, a pump cover, a front lining plate and a suction cover are sequentially arranged on the pump shaft 1;
F. and a filler 4 is arranged between the stuffing box 3 and the filler shaft sleeve 2, the filler is tightly pressed by a gland, and the slurry pump is assembled.
The utility model discloses a cover the filler shaft sleeve 2 in advance with the arc 5, cover the gland packing 3 cover on the arc 5, utilize the arc 5 convenient to dismouting to form the support between filler shaft sleeve 2, the gland packing 3, make the distance between the two keep fixed, keep good axiality promptly, improved the assembly precision between gland packing 3 and the fixed welt 11 simultaneously, reduce the allotment time of gland packing 3 relative to fixed welt 11, realize the quick installation of gland packing 3 and fixed welt 11, and prevent effectively that the condiment case 3 from taking place the incline in the installation; install stuffing box 3 and fixed welt 11 fixedly, be about to stuffing box 3 and fix for the position of packing axle sleeve 2, and then make the even unanimity of thickness of packing, effectively prevent the appearance of eccentric wear phenomenon, prolong the life of sediment stuff pump.
Claims (4)
1. The utility model provides a centering device is sealed to L type for pump for the installation of the sealed packing device of sediment stuff pump, the sealed packing device include with supporting packing axle sleeve (2), stuffing box (3) of pump shaft (1) of sediment stuff pump and set up packing (4) between packing axle sleeve (2) and stuffing box (3), its characterized in that: the centering device comprises an arc-shaped plate (5) and an ejection unit, wherein the inner circle of the arc-shaped plate is matched with the outer wall of a packing shaft sleeve (2), the outer circle of the arc-shaped plate is matched with the inner wall of a packing box (3), the ejection unit is arranged on the arc-shaped plate (5), and the arc-shaped plate (5) is in a minor arc shape.
2. An L-seal centering device for a pump as claimed in claim 1, wherein: the outer circle of the arc-shaped plate (5) is provided with a protrusion (6) perpendicular to the axis of the arc-shaped plate, the protrusion (6) and the arc-shaped plate (5) form a structure with an L-shaped cross section, the ejection unit comprises a group of ejection bolts (7) arranged on the protrusion (6) and matched with the side wall of the stuffing box (3), and the protrusion (6) is provided with mounting threaded holes of the ejection bolts (7).
3. An L-shaped seal centering device for a pump as claimed in claim 2, wherein: the bulge (6) is positioned at one end of the arc-shaped plate (5) far away from the stuffing box (3).
4. An L-seal centering device for a pump as claimed in claim 1, wherein: a group of gaps (9) are arranged on the arc-shaped plate (5) at intervals along the circumferential direction to form a saw-toothed structure (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893515.7U CN210152988U (en) | 2019-06-14 | 2019-06-14 | L-shaped sealing and centering device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893515.7U CN210152988U (en) | 2019-06-14 | 2019-06-14 | L-shaped sealing and centering device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210152988U true CN210152988U (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920893515.7U Active CN210152988U (en) | 2019-06-14 | 2019-06-14 | L-shaped sealing and centering device for pump |
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| Country | Link |
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| CN (1) | CN210152988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145498A (en) * | 2019-06-14 | 2019-08-20 | 石家庄开发区石泵泵业有限公司 | A kind of pump L-type sealing centring means and its application method |
-
2019
- 2019-06-14 CN CN201920893515.7U patent/CN210152988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145498A (en) * | 2019-06-14 | 2019-08-20 | 石家庄开发区石泵泵业有限公司 | A kind of pump L-type sealing centring means and its application method |
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