CN111963487A - Anti-loosening bolt structure on centrifugal pump body - Google Patents
Anti-loosening bolt structure on centrifugal pump body Download PDFInfo
- Publication number
- CN111963487A CN111963487A CN202010904141.1A CN202010904141A CN111963487A CN 111963487 A CN111963487 A CN 111963487A CN 202010904141 A CN202010904141 A CN 202010904141A CN 111963487 A CN111963487 A CN 111963487A
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- China
- Prior art keywords
- pump body
- bearing box
- flange
- bolt
- centrifugal pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a bolt structure for preventing looseness on a centrifugal pump body, which comprises the pump body of a centrifugal pump, wherein a bearing box is arranged on one side of an impeller inlet on the pump body, a flange is formed on one side, close to the pump body, of the bearing box, a plurality of bolts are inserted into the flange in a splicing manner, and the bolts are fixed in threaded holes of a connecting ring in a threaded manner; planar cutting grooves are formed in the outer walls of the two opposite sides of the bearing box, and avoidance notches penetrating through the end face of one side, away from the pump body, of the bearing box are formed in the bottom surfaces of the cutting grooves; the bottom surface that the grooving is close to the flange goes up the shaping to have a spacing slot, and the shaping has the notch relative with spacing slot on the bolt at spacing slot both ends, the notch of bolt and the spacing slot interpolation of bearing box have the cardboard, the shaping has the locating hole on the cardboard, and the shaping has the pinhole relative with locating hole on the cardboard on the bottom surface that the bearing box dodges the notch, and the end of locating pin is pegged graft in the locating hole of cardboard.
Description
Technical Field
The invention relates to the technical field of water pumps, in particular to an anti-loosening bolt structure on a centrifugal pump body.
Background
The centrifugal pump is a pump for conveying liquid by centrifugal force generated when an impeller rotates, and mainly comprises the impeller, a pump body, a pump shaft, a bearing, a sealing ring, a stuffing box and the like. It is mainly characterized in that: compact structure, wide flow lift range, even flow, stable operation, small vibration, low equipment installation, maintenance and repair cost and the like. The existing centrifugal pump mainly comprises a pump body, an impeller, a bearing box, a steel shaft and the like, wherein the pump body and the bearing box are fixedly connected by bolts, but the centrifugal pump can vibrate when working, so that the bolts between the pump body and the bearing box can be loosened due to vibration, and the impeller can generate pressure when working, so that the pressure of the impeller realizes water delivery and can also act on the joint of the pump body and the bearing box; therefore, when the bolt between the pump body and the bearing box is loosened, the pump body and the bearing box always leak.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an anti-loosening bolt structure on a centrifugal pump body, which can limit partial bolts, prevent partial bolts from loosening, realize effective fixed connection of the pump body and a bearing box and avoid leakage between the pump body and the bearing box.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a bolt structure for preventing loosening on a centrifugal pump body comprises a pump body of the centrifugal pump, wherein a water inlet pipe is formed on the side end face of one side of the pump body, a water outlet pipe is formed at the upper end of the pump body, an impeller inlet is formed on the side end face of the pump body opposite to the water inlet pipe, a circular connecting ring is formed on the side end face of the pump body around the impeller inlet, a plurality of threaded holes are formed in the end face of the connecting ring, a bearing box is arranged on one side of the impeller inlet on the pump body, a flange is formed on one side, close to the pump body, of the bearing box, a plurality of bolts are inserted into the flange and are; planar cutting grooves are formed in the outer walls of the two opposite sides of the bearing box, and avoidance notches penetrating through the end face of one side, away from the pump body, of the bearing box are formed in the bottom surfaces of the cutting grooves; the bottom surface of the grooving close to the flange is formed with a limiting slot, the bolts at the two ends of the limiting slot are formed with notches opposite to the limiting slot, the notches of the bolts and the limiting slot of the bearing box are internally inserted with clamping plates, the clamping plates are formed with positioning holes, the bottom surface of the bearing box avoiding the notches is formed with pin holes opposite to the positioning holes in the clamping plates, the pin holes of the bearing box are internally inserted with positioning pins, and the tail ends of the positioning pins are inserted in the positioning holes of the clamping plates.
Preferably, a sealing gasket is arranged between the flange of the bearing box and the connecting ring of the pump body, and the sealing gasket is clamped between the flange and the connecting ring.
Preferably, the positioning pin is an elastic split pin, and the length of the positioning pin is smaller than the distance from the bottom surface of the avoiding notch to the flange.
Preferably, the positioning pin is a cylindrical pin, and a bottom threaded hole is formed in the end face of the positioning pin, which is far away from one end of the flange.
Preferably, the number of the bolts on the pump body connecting ring is eight, the bolts are uniformly distributed in an annular shape around the central axis of the connecting ring, and two bolts are arranged on two sides of the bearing box cutting groove.
Preferably, the bolt is a hexagon socket head cap screw, and an avoiding groove opposite to the bolt is formed on the bearing box; the bearing box is conical.
Preferably, the positioning pin is located in the middle of the clamping plate, and the thickness of the clamping plate is equal to the width of the limiting slot in the bearing box.
The invention has the beneficial effects that: the structure of its adoption can restrict partial bolt, prevents that partial bolt from becoming flexible, realizes the effectual rigid coupling of pump body and bearing box, avoids taking place to leak between the two.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a side view of the present invention;
fig. 3 is a rear view of the present invention.
In the figure: 1. a pump body; 11. a water inlet pipe; 12. a water outlet pipe; 13. a connecting ring; 2. a bearing housing; 21. a flange; 22. grooving; 23. limiting slots; 24. avoiding the notch; 3. a bolt; 31. a notch; 31. a stud; 4. clamping a plate; 5. positioning pins; 51. the bottom is threaded.
Detailed Description
Example (b): as shown in fig. 1 to 3, a locking bolt structure on a centrifugal pump body comprises a pump body 1 of the centrifugal pump, a water inlet pipe 11 is formed on the side end face of one side of the pump body 1, a water outlet pipe 12 is formed on the upper end of the pump body 1, an impeller inlet is formed on the side end face of the pump body 1 opposite to the water inlet pipe 11, a circular connecting ring 13 is formed on the side end face of the pump body 1 around the impeller inlet, a plurality of threaded holes are formed on the end face of the connecting ring 13, a bearing box 2 is arranged on one side of the impeller inlet on the pump body 1, a flange 21 is formed on one side of the bearing box 2 close to the pump body 1, a plurality of bolts 3 are inserted into the flange 21, and the bolts 3 are; planar cutting grooves 22 are formed on the opposite outer walls of the two sides of the bearing box 2, and an avoiding notch 24 penetrating through the end face of one side, away from the pump body 1, of the bearing box 2 is formed on the bottom surface of each cutting groove 22; spacing slot 23 is formed in the bottom surface of grooving 22 near flange 21, and the bolt 3 at spacing slot 23 both ends is formed with notch 31 relative with spacing slot 23, it has cardboard 4 to peg graft in the notch 31 of bolt 3 and the spacing slot 23 of bearing box 2, and the shaping has the locating hole on the cardboard 4, and the shaping has the pinhole relative with the locating hole on cardboard 4 on the bottom surface that bearing box 2 dodges notch 24, and peg graft in the pinhole of bearing box 2 has locating pin 5, and the end of locating pin 5 is pegged graft in the locating hole of cardboard 4.
And a sealing gasket is arranged between the flange 21 of the bearing box 2 and the connecting ring 13 of the pump body 1, and the sealing gasket is clamped between the flange 21 and the connecting ring 13.
The positioning pin 5 adopts an elastic split pin, and the length of the positioning pin 5 is smaller than the distance from the bottom surface of the avoiding notch 24 to the flange 21.
The positioning pin 5 is a cylindrical pin, and a bottom threaded hole 51 is formed in the end face of one end, away from the flange 21, of the positioning pin 5.
The pump body 1 is equipped with eight bolts 3 on the go-between 13, and the bolt 3 is annular evenly distributed around the central axis of go-between 13, and the both sides of bearing box 2 grooving 22 are equipped with two bolts 3.
The bolt 3 is a hexagon socket head cap screw, and an avoidance groove opposite to the bolt 3 is formed on the bearing box 2; the bearing box 2 is conical.
The positioning pin 5 is located in the middle of the clamping plate 4, and the thickness of the clamping plate 4 is equal to the width of the limiting slot 23 in the bearing box 2.
The working principle is as follows: the invention relates to an anti-loosening bolt structure on a centrifugal pump body, which is mainly technically characterized in that: in the centrifugal pump, a notch 31 is cut on a bolt 3, a limiting slot 23 is formed in a bearing box 2, a clamping plate 4 is inserted in the limiting slot 23 of the bearing box 2 and the notch 31 of the bolt 3, and the clamping plate 4 is fixed by a positioning pin 5; therefore, the clamping plate 4 can be used for limiting the bolts 3 at the two ends of the clamping plate 4 to rotate, namely the bolts 3 cannot be loosened;
meanwhile, the limited bolts 3 are uniformly arranged in an annular shape around the central axis of the connecting ring 13 as shown in fig. 3, and the limited bolts 3 can effectively fixedly connect the pump body 1 and the bearing box 2 to avoid leakage.
The examples are intended to illustrate the invention, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the invention as set forth in the appended claims.
Claims (7)
1. A bolt structure for preventing looseness on a centrifugal pump body comprises a pump body (1) of the centrifugal pump, wherein a water inlet pipe (11) is formed on the side end face of one side of the pump body (1), a water outlet pipe (12) is formed at the upper end of the pump body (1), an impeller inlet is formed on the side end face of the pump body (1) opposite to the water inlet pipe (11), a circular connecting ring (13) is formed on the side end face of the pump body (1) around the impeller inlet, a plurality of threaded holes are formed on the end face of the connecting ring (13), a bearing box (2) is arranged on one side of the impeller inlet on the pump body (1), a flange (21) is formed on one side, close to the pump body (1), of the bearing box (2), a plurality of bolts (3) are inserted into the flange (21), and the bolts (3) are fixed; the method is characterized in that: planar cutting grooves (22) are formed in the outer walls of the two opposite sides of the bearing box (2), and an avoiding notch (24) penetrating through the end face of one side, away from the pump body (1), of the bearing box (2) is formed in the bottom surface of each cutting groove (22); spacing slot (23) are formed on the bottom surface that grooving (22) are close to flange (21), and bolt (3) at spacing slot (23) both ends go up the shaping has notch (31) relative with spacing slot (23), notch (31) of bolt (3) and spacing slot (23) interpolation of bearing box (2) have cardboard (4), and the shaping has the locating hole on cardboard (4), and the shaping has the pinhole relative with locating hole on cardboard (4) on the bottom surface that bearing box (2) dodge notch (24), and the interpolation of pinhole of bearing box (2) has locating pin (5), and the end of locating pin (5) is pegged graft in the locating hole of cardboard (4).
2. The anti-loosening bolt structure for a centrifugal pump body according to claim 1, wherein: and a sealing gasket is arranged between the flange (21) of the bearing box (2) and the connecting ring (13) of the pump body (1), and the sealing gasket is clamped between the flange (21) and the connecting ring (13).
3. The anti-loosening bolt structure for a centrifugal pump body according to claim 1, wherein: the positioning pin (5) adopts an elastic split pin, and the length of the positioning pin (5) is smaller than the distance from the bottom surface of the avoiding notch (24) to the flange (21).
4. The anti-loosening bolt structure for a centrifugal pump body according to claim 1, wherein: the positioning pin (5) is a cylindrical pin, and a bottom threaded hole (51) is formed in the end face of one end, deviating from the flange (21), of the positioning pin (5).
5. The anti-loosening bolt structure for a centrifugal pump body according to claim 1, wherein: the pump body (1) is equipped with eight bolts (3) on go-between (13), and bolt (3) are annular evenly distributed around the central axis of go-between (13), and the both sides of bearing box (2) grooving (22) are equipped with two bolts (3).
6. The anti-loosening bolt structure for a centrifugal pump body according to claim 5, wherein: the bolt (3) adopts an inner hexagon bolt, and an avoidance groove opposite to the bolt (3) is formed on the bearing box (2); the bearing box (2) is conical.
7. The anti-loosening bolt structure for a centrifugal pump body according to claim 1, wherein: the positioning pin (5) is positioned in the middle of the clamping plate (4), and the thickness of the clamping plate (4) is equal to the width of the positioning slot (23) in the bearing box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904141.1A CN111963487A (en) | 2020-09-01 | 2020-09-01 | Anti-loosening bolt structure on centrifugal pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904141.1A CN111963487A (en) | 2020-09-01 | 2020-09-01 | Anti-loosening bolt structure on centrifugal pump body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111963487A true CN111963487A (en) | 2020-11-20 |
Family
ID=73401121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010904141.1A Withdrawn CN111963487A (en) | 2020-09-01 | 2020-09-01 | Anti-loosening bolt structure on centrifugal pump body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111963487A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202266485U (en) * | 2011-09-02 | 2012-06-06 | 广东省佛山水泵厂有限公司 | Back pump body sealing ring and multistage centrifugal pump with same |
| CN104948469A (en) * | 2015-07-07 | 2015-09-30 | 芜湖环球汽车配件有限公司 | Wear resistant corrosion resisting centrifugal pump |
| CN204893489U (en) * | 2015-08-05 | 2015-12-23 | 江苏科技大学 | Boats and ships water jet propulsion pump's pump body processing special fixture |
| CN205904858U (en) * | 2016-08-24 | 2017-01-25 | 衡阳市胤涛工贸有限公司 | Anchor clamps float on plane and floating structure thereof |
| CN206770286U (en) * | 2017-04-07 | 2017-12-19 | 兰州兰泵有限公司 | A kind of choma fixed connection structure of centrifugal multistage pump multiple centrifugal pump |
| CN207454222U (en) * | 2017-11-22 | 2018-06-05 | 胜瑞兰工业设备（苏州）有限公司 | Diaphragm metering pump does not dismantle membrane pump head structure capable of washing |
| CN207903860U (en) * | 2018-02-10 | 2018-09-25 | 李生军 | A kind of centrifugal multistage pump multiple centrifugal pump apparatus for examination and repair |
| CN209164397U (en) * | 2018-11-22 | 2019-07-26 | 泛仕达机电股份有限公司 | A kind of water pump bearing anti-loose structure |
| CN210715243U (en) * | 2019-07-24 | 2020-06-09 | 山东恒星塑料机械制造有限公司 | High-sealing corrosion-resistant aluminum alloy turbine water pump |
-
2020
- 2020-09-01 CN CN202010904141.1A patent/CN111963487A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202266485U (en) * | 2011-09-02 | 2012-06-06 | 广东省佛山水泵厂有限公司 | Back pump body sealing ring and multistage centrifugal pump with same |
| CN104948469A (en) * | 2015-07-07 | 2015-09-30 | 芜湖环球汽车配件有限公司 | Wear resistant corrosion resisting centrifugal pump |
| CN204893489U (en) * | 2015-08-05 | 2015-12-23 | 江苏科技大学 | Boats and ships water jet propulsion pump's pump body processing special fixture |
| CN205904858U (en) * | 2016-08-24 | 2017-01-25 | 衡阳市胤涛工贸有限公司 | Anchor clamps float on plane and floating structure thereof |
| CN206770286U (en) * | 2017-04-07 | 2017-12-19 | 兰州兰泵有限公司 | A kind of choma fixed connection structure of centrifugal multistage pump multiple centrifugal pump |
| CN207454222U (en) * | 2017-11-22 | 2018-06-05 | 胜瑞兰工业设备（苏州）有限公司 | Diaphragm metering pump does not dismantle membrane pump head structure capable of washing |
| CN207903860U (en) * | 2018-02-10 | 2018-09-25 | 李生军 | A kind of centrifugal multistage pump multiple centrifugal pump apparatus for examination and repair |
| CN209164397U (en) * | 2018-11-22 | 2019-07-26 | 泛仕达机电股份有限公司 | A kind of water pump bearing anti-loose structure |
| CN210715243U (en) * | 2019-07-24 | 2020-06-09 | 山东恒星塑料机械制造有限公司 | High-sealing corrosion-resistant aluminum alloy turbine water pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201120 |