CN212055245U

CN212055245U - Packing gland for centrifugal pump

Info

Publication number: CN212055245U
Application number: CN202020241049.7U
Authority: CN
Inventors: 李晓峰; 陈钟鸣; 李佳兴; 颜嘉松; 王进发; 张灿辉; 张泽勇; 陈德辉; 张婷婷
Original assignee: Fujian Languang Energy Saving Technology Co ltd
Current assignee: Fujian Languang Energy Saving Technology Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-12-01
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to a centrifugal pump gland technical field discloses a gland for centrifugal pump, including the gland main part, the gland mounting hole has all been seted up on the both sides on the top of gland main part, and the intermediate position on the top of gland main part is connected with the packing clamping ring, and the gland mesopore has been seted up to the position that the top of gland main part is close to the packing clamping ring, and the bottom of gland main part is connected with the thickening piece, and the second screw has all been seted up on the both sides of the bottom of gland main part, and the nut standing groove has all been seted up on the both sides of the bottom of thickening piece, and first screw has all been seted up on the both sides. The utility model discloses a first seal gasket, second seal gasket, embedding piece, scarf joint groove, reinforcement ring and annular groove, can be convenient set up first seal gasket and second seal gasket in the gland main part, and when needs are changing seal gasket, need not pull down whole gland main part from the centrifugal pump to made things convenient for the user to install, change seal gasket on the gland.

Description

Packing gland for centrifugal pump

Technical Field

The utility model relates to a centrifugal pump gland technical field specifically is a gland for centrifugal pump.

Background

The packing seal is firstly to prevent liquid leakage by plugging fibers such as cotton and hemp in a leakage channel, and is mainly used as a shaft seal of a water lifting machine; because of wide sources of the filling materials, easy processing, low price, reliable sealing and simple operation, the filling pressure covers are widely used for rotating shaft sealing of centrifugal pumps, compressors, vacuum pumps, mixers and ship propellers, reciprocating shaft sealing of piston pumps, reciprocating compressors and refrigerators, rotating sealing of valve stems of various valves and the like.

There are a variety of packing glands for centrifugal pumps on the market today, but these packing glands ubiquitous do not allow for convenient placement of a sealing gasket at the packing gland, and do not allow for convenient adjustment of the thickness of the gland to facilitate installation of the gland on the centrifugal pump. Accordingly, those skilled in the art have provided a packing gland for a centrifugal pump to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gland for centrifugal pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a gland for centrifugal pump, includes the gland main part, the gland mounting hole has all been seted up on the both sides on the top of gland main part, and the intermediate position on the top of gland main part is connected with the packing clamping ring, the gland mesopore has been seted up near the position of packing clamping ring in the top of gland main part, the bottom of gland main part is connected with the thickness expansion piece, the second screw has all been seted up on the both sides of the bottom of gland main part, the nut standing groove has all been seted up on the both sides of the bottom of thickness expansion piece, first screw has all been seted up on the both sides of the bottom of thickness expansion piece, the both sides of the bottom of thickness expansion piece all are connected with stop screw, the second through-hole has been seted up to the intermediate position of the bottom of thickness expansion piece, first through-.

As a further aspect of the present invention: two annular grooves are formed in the position, close to the packing compression ring, of the top end of the gland main body, one side of the outer side of the packing compression ring is connected with a first sealing gasket, the other side of the outer side of the packing compression ring is connected with a second sealing gasket, the two ends of the second sealing gasket are connected with embedding blocks, embedding grooves are formed in the two ends of the first sealing gasket, and reinforcing rings are arranged at the bottom ends of the first sealing gasket and the second sealing gasket.

As a further aspect of the present invention: and the nut of the limiting screw rod is arranged in the nut placing groove.

As a further aspect of the present invention: the limiting screw penetrates through the inner sides of the first screw hole and the second screw hole in sequence, and the thickening sheet is connected with the gland main body in a fastening mode through the limiting screw, the first screw hole and the second screw hole.

As a further aspect of the present invention: the positions of the two first through holes correspond to the positions of the two gland mounting holes respectively, and the positions of the second through holes correspond to the positions of the holes in the gland.

As a further aspect of the present invention: the embedded block is connected with the inner side of the scarf joint groove, and the thickness of the embedded block is the same as the height of the scarf joint groove.

As a further aspect of the present invention: the reinforcing ring is connected with the inner side of the annular groove, and the first sealing gasket and the gland main body as well as the second sealing gasket and the gland main body are stably connected through the reinforcing ring and the annular groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through first seal gasket, second seal gasket, embedding piece, scarf joint groove, reinforcement ring and annular groove, can be convenient set up first seal gasket and second seal gasket in the gland main part, and when needs are changing seal gasket, need not pull down whole gland main part from the centrifugal pump to made things convenient for the user to install, change seal gasket on the gland.

2. Through first through-hole, second through-hole, nut standing groove, stop screw, first screw, second screw and thickness expansion piece, the user can adjust the thickness of gland main part so that the gland main part is more firm with the centrifugal pump installation according to the specification of centrifugal pump, and can be convenient with thickness expansion piece and gland main part fastening connection together to this gland's practicality has been improved.

Drawings

FIG. 1 is a schematic structural view of a packing gland for a centrifugal pump;

FIG. 2 is a front partial cross-sectional view of a gland body and a thickening sheet in a packing gland for a centrifugal pump;

FIG. 3 is an enlarged view of A in a packing gland for a centrifugal pump;

FIG. 4 is a side partial cross sectional view of a gland body, a first sealing gasket and a second sealing gasket in a packing gland for a centrifugal pump;

fig. 5 is an enlarged view of B in a packing gland for a centrifugal pump.

In the figure: 1. a gland mounting hole; 2. a first sealing gasket; 3. packing and pressing a ring; 4. a second sealing gasket; 5. a gland body; 6. expanding the thickness sheet; 7. a first through hole; 8. a second through hole; 9. a gland central bore; 10. a nut placing groove; 11. a first screw hole; 12. a second screw hole; 13. a limit screw; 14. embedding a block; 15. embedding grooves; 16. a reinforcing ring; 17. an annular groove.

Detailed Description

Please refer to fig. 1-4, in an embodiment of the present invention, a packing gland for a centrifugal pump, including a gland main body 5, gland mounting holes 1 have all been seted up on both sides of the top of gland main body 5, and the intermediate position on the top of gland main body 5 is connected with packing ring 3, gland mesopore 9 has been seted up near the position of packing ring 3 on the top of gland main body 5, the bottom of gland main body 5 is connected with thickening sheet 6, second screw 12 has all been seted up on both sides of the bottom of gland main body 5, nut standing groove 10 has all been seted up on both sides of the bottom of thickening sheet 6, first screw 11 has all been seted up on both sides of the bottom of thickening sheet 6, both sides of the bottom of thickening sheet 6 all are connected with stop screw 13, second through-hole 8 has been seted up on the intermediate position of the bottom of thickening sheet 6, first through-hole 7 has all been seted up on both.

In fig. 4 and 5: two annular grooves 17 are arranged at the top end of the gland main body 5 close to the packing compression ring 3, one side of the outer side of the packing compression ring 3 is connected with a first sealing gasket 2, the other side of the outer side of the packing compression ring 3 is connected with a second sealing gasket 4, both ends of the second sealing gasket 4 are connected with embedded blocks 14, both ends of the first sealing gasket 2 are provided with embedding grooves 15, the bottom ends of the first sealing gasket 2 and the second sealing gasket 4 are provided with reinforcing rings 16, so that the reinforcing rings 16 arranged at the bottoms of the first sealing gasket 2 and the second sealing gasket 4 are respectively embedded into the two annular grooves 17 arranged on the gland main body 5, the first sealing gasket 2 and the second sealing gasket 4 are both stably connected with the gland main body 5, then the embedded blocks 14 arranged on the second sealing gasket 4 are embedded into the embedding grooves 15 arranged on the first sealing gasket 2, and the sealing performance of the joint of the first sealing gasket 2 and the second sealing gasket 4 is improved, therefore, the first sealing gasket 2 and the second sealing gasket 4 can be conveniently arranged on the gland main body 5, and when the sealing gaskets need to be replaced, the whole gland main body 5 does not need to be detached from the centrifugal pump.

In fig. 3: the nut of the limit screw 13 is disposed inside the nut placement groove 10, so that the nut is prevented from protruding on the surface of the thickening sheet 6 when the thickening sheet 6 is mounted.

In fig. 3: the limiting screw 13 penetrates through the inner sides of the first screw hole 11 and the second screw hole 12 in sequence, and the thickening sheet 6 and the gland main body 5 are connected in a fastening mode through the limiting screw 13, the first screw hole 11 and the second screw hole 12, so that the thickening sheet 6 and the gland main body 5 can be connected together in a fastening mode conveniently.

In fig. 2: the positions of the two first through holes 7 correspond to the positions of the two gland mounting holes 1 respectively, and the position of the second through hole 8 corresponds to the position of the hole 9 in the gland, so that the influence of the thickening sheet 6 on the normal use of the gland main body 5 can be avoided.

In fig. 5: the insert piece 14 is connected to the inside of the engagement groove 15, and the thickness of the insert piece 14 is the same as the height of the engagement groove 15, so that the sealing performance of the joint between the first seal gasket 2 and the second seal gasket 4 can be improved.

In fig. 5: the reinforcing ring 16 is connected with the inner side of the annular groove 17, and the first sealing gasket 2 and the gland body 5 and the second sealing gasket 4 and the gland body 5 are all stably connected through the reinforcing ring 16 and the annular groove 17, so that the first sealing gasket 2 and the second sealing gasket 4 can be stably placed on the gland body 5.

The utility model discloses a theory of operation is: when the packing gland is used, when the gland main body 5 is fixedly arranged on a centrifugal pump, firstly, the first sealing gasket 2 and the second sealing gasket 4 are arranged at the position of the packing gland 3, at the moment, the reinforcing rings 16 arranged at the bottoms of the first sealing gasket 2 and the second sealing gasket 4 are respectively embedded into the two annular grooves 17 arranged on the gland main body 5, so that the first sealing gasket 2 and the second sealing gasket 4 are both stably connected with the gland main body 5, then, the embedding blocks 14 arranged on the second sealing gasket 4 are embedded into the embedding grooves 15 arranged on the first sealing gasket 2, thereby improving the sealing performance of the joint of the first sealing gasket 2 and the second sealing gasket 4, further, the first sealing gasket 2 and the second sealing gasket 4 can be conveniently arranged on the gland main body 5, and when the sealing gaskets need not to be dismounted from the centrifugal pump when needing to be replaced, the user can adjust the thickness of gland main part 5 so that gland main part 5 and centrifugal pump installation more firmly according to the specification of centrifugal pump, will expand thick piece 6 and paste with gland main part 5 this moment to make first through-hole 7 corresponding with gland mounting hole 1, second through-hole 8 is corresponding with gland mesopore 9, then change over into the inside of first screw 11 and second screw 12 in proper order with stop screw 13 and screw up, thereby in order to expand thick piece 6 and gland main part 5 fastening connection together.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A packing gland for a centrifugal pump comprises a gland main body (5) and is characterized in that gland mounting holes (1) are formed in two sides of the top end of the gland main body (5), a packing clamping ring (3) is connected to the middle position of the top end of the gland main body (5), a gland middle hole (9) is formed in the position, close to the packing clamping ring (3), of the top end of the gland main body (5), a thickening sheet (6) is connected to the bottom end of the gland main body (5), second screw holes (12) are formed in two sides of the bottom end of the gland main body (5), nut placing grooves (10) are formed in two sides of the bottom end of the thickening sheet (6), first screw holes (11) are formed in two sides of the bottom end of the thickening sheet (6), limiting screw rods (13) are connected to two sides of the bottom end of the thickening sheet (6), second through holes (8) are formed in the middle position of the bottom end of the thickening sheet (6), and first through holes (7) are formed in two sides of the bottom end of the thickening sheet (6).

2. The packing gland for the centrifugal pump according to claim 1, wherein two annular grooves (17) are formed in the top end of the gland main body (5) at positions close to the packing compression ring (3), one side of the outer side of the packing compression ring (3) is connected with a first sealing gasket (2), the other side of the outer side of the packing compression ring (3) is connected with a second sealing gasket (4), both ends of the second sealing gasket (4) are connected with embedded blocks (14), both ends of the first sealing gasket (2) are provided with embedded grooves (15), and reinforcing rings (16) are arranged at the bottom ends of the first sealing gasket (2) and the second sealing gasket (4).

3. Packing gland for centrifugal pumps according to claim 1, characterized in that the nut of the limit screw (13) is arranged inside the nut placing groove (10).

4. The packing gland for a centrifugal pump according to claim 1, wherein the limit screw (13) penetrates inside the first screw hole (11) and the second screw hole (12) in sequence, and the thickening sheet (6) and the gland body (5) are fastened and connected through the limit screw (13), the first screw hole (11) and the second screw hole (12).

5. A packing gland for a centrifugal pump according to claim 1, characterized in that the two first through holes (7) correspond in position to the two gland mounting holes (1), respectively, and the second through hole (8) corresponds in position to the gland hole (9).

6. Packing gland for centrifugal pumps according to claim 2, characterized in that the insert (14) is connected to the inside of the engagement groove (15), the thickness of the insert (14) being the same as the height of the engagement groove (15).

7. Packing gland for centrifugal pumps according to claim 2, characterized in that the reinforcement ring (16) is connected to the inside of the annular groove (17), the first sealing gasket (2) and the gland body (5) and the second sealing gasket (4) and the gland body (5) being firmly connected by the reinforcement ring (16) and the annular groove (17).