CN211371279U - Throttle formula filler ring subassembly of end suction pump - Google Patents
Throttle formula filler ring subassembly of end suction pump Download PDFInfo
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- CN211371279U CN211371279U CN201922267356.2U CN201922267356U CN211371279U CN 211371279 U CN211371279 U CN 211371279U CN 201922267356 U CN201922267356 U CN 201922267356U CN 211371279 U CN211371279 U CN 211371279U
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Abstract
A throttling packing ring assembly of an end suction pump belongs to the technical field of end suction pumps. Packing axle sleeve (3) and filler ring (2) including inside and outside suit, its characterized in that: the packing ring (2) is clamped at the inner end of the packing chamber (4), and the packing (5) is completely positioned at the outer side of the packing ring (2) and extends to the port of the packing chamber (4); set up and send water passageway (1), rivers flow to the face department of cup jointing of packing axle sleeve (3) and drilled packing ring (2) after passing drilled packing ring (2), and the flow area in the face department outside of cup jointing is greater than the flow area of inboard, and rivers outwards flow through packing (5) in the drilled packing ring (2) outside along drilled packing ring (2) axial. In the throttling packing ring assembly of the suction pump at the end, all packing is placed outside the packing ring, and the flow area of the outer side of the joint of the packing shaft sleeve and the packing ring sleeve is larger than that of the inner side of the packing shaft sleeve, so that the pressure balance of two sides of the packing ring is not influenced while the packing is convenient to replace.
Description
Technical Field
A throttling packing ring assembly of an end suction pump belongs to the technical field of end suction pumps.
Background
An end suction pump is a pump that is immersed in an underground water well to pump and transport water, and in a conventional end suction pump, sealing is generally achieved by means of packing. As shown in fig. 3, a packing shaft sleeve 3 is sleeved on the outer side of a transmission shaft 6, a packing chamber (not shown in the figure) is further sleeved on the outer side of the packing shaft sleeve 3, a containing cavity is formed between the packing chamber and the packing shaft sleeve 3 at intervals, packing 5 is placed in the containing cavity, the packing 5 extends from the bottom of the packing chamber to the port of the packing chamber, and at a packing ring 2 on the outer ring of the packing shaft sleeve 3, the packing 5 is respectively arranged on two sides of the packing ring 2. A gap is formed between the packing ring 2 and the packing shaft sleeve 3, and a water feeding channel is also arranged in the packing chamber and is connected with the gap and a water feeding pipe of the end suction pump. Therefore, when water flows in a water supply pipe of the end suction pump, part of water enters a gap between the packing ring 2 and the packing shaft sleeve 3 through a water supply channel in the packing chamber and further flows to the packing 5 positions on two sides of the packing ring 2 through the gap, the water plays roles of lubricating and cooling, the water flows through the packing 5 positions on the corresponding sides of the water and then is discharged, and the reason that the packing 5 is required to be arranged on two sides of the packing ring 2 is that the pressure on two sides of the packing ring 2 is balanced to ensure that the water can respectively enter the packing 5 on two sides.
In the prior art, the filler in the end suction pump needs to be replaced in time when the filler is worn. As can be seen from the above, the packing is distributed on both sides of the packing ring, so that the packing located outside the packing ring is first taken out, then the packing ring is taken out, and finally the packing located inside the packing ring is taken out, and then new packing is charged in the reverse order of the order. The end suction pump is generally installed in a deep well or other positions which are difficult to reach, so the process of replacing the filler is very complicated, and the working efficiency is very low.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the throttling type packing ring assembly of the end suction pump overcomes the defects of the prior art, the packing is completely placed on the outer side of the packing ring, and the flow area of the outer side of the joint surface of the packing shaft sleeve and the packing ring sleeve is larger than that of the inner side of the packing shaft sleeve, so that the pressure balance of the two sides of the packing ring can not be influenced while the packing is convenient to replace.
The utility model provides a technical scheme that its technical problem adopted is: this throttle formula filler ring subassembly of end suction pump, including filler axle sleeve and suit at the filler ring of filler axle sleeve outer lane, the outer lane cover of filler axle sleeve is equipped with the packing chamber, packs and loads in the holding tank between packing chamber and filler axle sleeve, its characterized in that: the packing ring is clamped at the inner end of the packing chamber, and all the packing is positioned at the outer side of the packing ring and extends to a port of the packing chamber;
the water feeding channel is arranged on the side of the packing ring, water entering through the water feeding channel passes through the packing ring and then flows to the sleeving surface of the packing shaft sleeve and the packing ring, the flow area of the sleeving surface, which is positioned on the outer side of the joint of the packing ring and the water feeding channel, is larger than that of the inner side of the packing ring, and the water flows through the packing on the outer side of the packing ring axially and outwards along the packing ring.
Preferably, the outer end of the packing ring is provided with a water inlet hole penetrating through the inner surface and the outer surface of the packing ring, and the outer port of the water inlet hole is butted with the water feeding channel.
Preferably, a plurality of throttling channels and water inlet channels are formed between the packing ring and the sleeve joint surface of the packing shaft sleeve, the throttling channels and the water inlet channels are arranged along the axial direction of the packing ring, the throttling channels are arranged on the inner side of the joint of the water feeding channel and the packing ring, and the water inlet channels are arranged on the outer side of the joint of the water feeding channel and the packing ring.
Preferably, the flow area of the water inlet passage is larger than that of the throttling passage.
Preferably, an annular bulge is formed at the outer end of the packing ring, and the water inlet hole is radially formed in the annular bulge.
Preferably, the packing shaft sleeve is cylindrical, a sealing groove is formed in the outer side of the inner end face of the packing shaft sleeve, and a sealing ring is placed in the sealing groove.
Preferably, the water delivery channel is opened in the filling chamber.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
in the throttling packing ring assembly of the suction pump at the end, all the packing is placed on the outer side of the packing ring, and the flow area of the outer side of the joint of the packing shaft sleeve and the packing ring sleeve is larger than that of the inner side of the packing ring sleeve, so when water flows to the joint of the packing ring and the packing shaft sleeve through the water feeding channel and the water inlet hole, most of the water flows to one end loaded with the packing through the water inlet channel due to the fact that the flow area of the water inlet channel is larger than that of the throttling channel, and the effect of lubricating and cooling the packing is achieved. Therefore, in the throttling packing ring component of the end suction pump, the pressure balance is not required to be realized by filling the packing at both ends of the packing ring. And because the filler is only positioned at the outer end of the filler ring, the filler ring does not need to be taken out when the filler is replaced, the replacement process of the filler is greatly simplified, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a schematic view of an installation of a throttling packing ring assembly of an end suction pump.
FIG. 2 is a schematic diagram of a throttling packing ring assembly for an end suction pump.
FIG. 3 is a schematic view of a prior art end suction pump packing ring assembly installation.
Wherein: 1. the water supply device comprises a water supply channel 2, a packing ring 3, a packing shaft sleeve 4, a packing chamber 5, packing 6, a transmission shaft 7, a throttling channel 8, a water inlet hole 9, a water inlet channel 10 and a sealing groove.
Detailed Description
Fig. 1 to 2 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 2.
As shown in fig. 1, the end suction pump includes a transmission shaft 6, a packing shaft sleeve 3 is sleeved outside the transmission shaft 6, and a packing chamber 4 is sleeved outside the packing shaft sleeve 3. The packing ring 2 is sleeved at the bottom of the outer ring of the packing shaft sleeve 3, the end of the packing ring 2 is clamped at the inner ring at the bottom of the packing chamber 4, a containing cavity is formed between the inner ring of the packing chamber 4 and the outer ring of the packing shaft sleeve 3 at intervals, a plurality of groups of packing 5 are sequentially filled in the containing cavity, and the packing 5 are all positioned at the outer side of the packing ring 2 and sequentially filled to the port of the technical end suction pump of the packing chamber 4.
The water feeding channel 1 is arranged in the packing chamber 4, one end of the water feeding channel 1 is communicated with the packing ring 2, the other end of the water feeding channel is led out from the packing chamber 4 and is communicated with a water conveying pipeline of the end suction pump, one part of water flow in the water conveying pipeline enters the packing ring 2 through the water feeding channel 1, flows through the packing 5 outwards through the packing ring 2 and is finally discharged, and the effects of lubrication and cooling are achieved.
With reference to fig. 2, the packing ring assembly includes a packing shaft sleeve 3 and a packing ring 2, the packing shaft sleeve 3 is cylindrical, the transmission shaft 6 penetrates through a cavity penetrating through the center of the packing shaft sleeve, an annular sealing groove 10 is formed in the outer end of the inner wall of the transmission shaft 6, and a sealing ring (see fig. 1) is placed in the sealing groove 10 to seal between the packing shaft sleeve 3 and the transmission shaft 6.
The packing ring 2 suit is in the outer lane of packing axle sleeve 3, forms annular protruding at the rear end of packing ring 2, has seted up a plurality of inlet openings 8 along packing ring 2's radial on this annular protruding, and inlet opening 8 runs through the inside and outside terminal surface of packing ring 2, wherein the opening and the butt joint of water channel 1 of sending at the outside terminal surface. A plurality of grooves communicated with the inner port of the water inlet hole 8 are arranged on the inner ring of the packing ring 2 along the axial direction, wherein the grooves arranged on the inner side of the water inlet hole 8 and the surface of the packing shaft sleeve 3 are separated to form a throttling channel 7, the grooves arranged on the outer side of the water inlet hole 8 and the surface of the packing shaft sleeve 3 are separated to form a water inlet channel 9, the flow area of the water inlet channel 9 is larger than the flow area of the throttling channel 7,
therefore, when water flows to the joint of the packing ring 2 and the packing shaft sleeve 3 through the water feeding channel 1 and the water inlet hole 8, most of the water flows to one end loaded with the packing 5 through the water inlet channel 9 because the flow area of the water inlet channel 9 is larger than that of the throttling channel 7, and the effect of lubricating and cooling the packing 5 is achieved. There is no need to achieve pressure equalization by packing 5 at both ends of the packing ring 2 in the throttling packing ring assembly of the suction end pump. And because the packing 5 is only positioned at the outer end of the packing ring 2, the packing ring 2 does not need to be taken out when the packing 5 is replaced, the replacement process of the packing 5 is greatly simplified, and the working efficiency is greatly improved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a throttle formula filler ring subassembly of end suction pump, includes filler axle sleeve (3) and suit at filler ring (2) of filler axle sleeve outer lane, is equipped with packing chamber (4) at the outer lane cover of filler axle sleeve (3), packs (5) and loads in the holding tank between packing chamber (4) and filler axle sleeve (3), its characterized in that: the packing ring (2) is clamped at the inner end of the packing chamber (4), and the packing (5) is completely positioned at the outer side of the packing ring (2) and extends to the port of the packing chamber (4);
the water feeding channel (1) connected to the side of the packing ring (2) is arranged, water entering through the water feeding channel (1) passes through the packing ring (2) and then flows to the sleeving surface of the packing shaft sleeve (3) and the packing ring (2), the flow area of the outer side of the joint of the packing ring (2) and the water feeding channel (1) at the sleeving surface is larger than that of the inner side of the joint, and the water flows outwards through the packing (5) on the outer side of the packing ring (2) along the axial direction of the packing ring (2).
2. The throttle type packing ring assembly of an end suction pump according to claim 1, wherein: the outer end of the packing ring (2) is provided with a water inlet hole (8) penetrating through the inner surface and the outer surface of the packing ring, wherein the outer port of the water inlet hole (8) is butted with the water feeding channel (1).
3. The throttle type packing ring assembly of an end suction pump according to claim 1, wherein: form many throttle passages (7) and inhalant canal (9) between the face of cup jointing of packing ring (2) and packing axle sleeve (3), throttle passage (7) and inhalant canal (9) are all seted up along the axial of packing ring (2), and wherein throttle passage (7) are seted up in the inboard of sending water passageway (1) and packing ring (2) junction, and inhalant canal (9) are seted up in the outside of sending water passageway (1) and packing ring (2) junction.
4. The throttle type packing ring assembly of an end suction pump according to claim 3, wherein: the flow area of the water inlet channel (9) is larger than that of the throttling channel (7).
5. The throttle type packing ring assembly of an end suction pump according to claim 2, wherein: an annular bulge is formed at the outer end of the packing ring (2), and the water inlet hole (8) is radially formed in the annular bulge.
6. The throttle type packing ring assembly of an end suction pump according to claim 1, wherein: the packing shaft sleeve (3) is cylindrical, a sealing groove (10) is formed in the outer side of the inner end face of the packing shaft sleeve, and a sealing ring is placed in the sealing groove (10).
7. The throttle type packing ring assembly of an end suction pump according to claim 1, wherein: the water feeding channel (1) is arranged in the filling chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267356.2U CN211371279U (en) | 2019-12-17 | 2019-12-17 | Throttle formula filler ring subassembly of end suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267356.2U CN211371279U (en) | 2019-12-17 | 2019-12-17 | Throttle formula filler ring subassembly of end suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211371279U true CN211371279U (en) | 2020-08-28 |
Family
ID=72155050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922267356.2U Active CN211371279U (en) | 2019-12-17 | 2019-12-17 | Throttle formula filler ring subassembly of end suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211371279U (en) |
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2019
- 2019-12-17 CN CN201922267356.2U patent/CN211371279U/en active Active
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