CN209818384U - Shaft seal device - Google Patents
Shaft seal device Download PDFInfo
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- CN209818384U CN209818384U CN201920594276.5U CN201920594276U CN209818384U CN 209818384 U CN209818384 U CN 209818384U CN 201920594276 U CN201920594276 U CN 201920594276U CN 209818384 U CN209818384 U CN 209818384U
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- limiting
- buckling
- shaft seal
- shaft
- box body
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Abstract
The utility model provides a shaft seal device belongs to centrifugal pump bearing seal equipment technical field. The technical scheme is as follows: the shaft seal device comprises a shaft seal box body matched with a shaft sleeve of a centrifugal pump, a packing gland matched with a top port of the shaft seal box body, and a buckling assembly arranged between the shaft seal box body and the packing gland. The utility model has the advantages that: the utility model discloses a set up the bearing seal case body on centrifugal pump shaft cover, with bearing seal case body top port matched with gland to and set up the lock subassembly between bearing seal case body and gland and seal up the centrifugal pump shaft, the lock subassembly counter shaft seal case body carries out the lock with gland and fixes, and is sealed effectual.
Description
Technical Field
The utility model relates to a centrifugal pump bearing seal equipment technical field especially relates to a shaft seal device.
Background
The existing centrifugal pump packing shaft seal device is characterized in that a shaft seal box is arranged on a shaft sleeve, a packing ring is arranged in the shaft seal box, packing is arranged on two sides of the packing ring, a packing gland is arranged at the port of the shaft seal box, the shaft seal device is poor in sealing effect when the pressure of the packing gland is small, the friction force between the packing and the shaft sleeve is large when the pressure of the packing gland is large, the power of a pump is low, the packing is easy to wear, the packing needs to be frequently stopped and replaced, the operation cost is high, and the normal operation is influenced. In addition, the existing mechanical sealing device generally comprises a locking bolt arranged on the outer side surface of the shaft seal box body, but the installation and disassembly process of the locking bolt is more complicated, the locking bolt is easy to lose, and the installation and maintenance requirements are high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can realize that shaft seal case body is sealed effectual with gland, the shaft seal device that current locking bolt's installation and the loaded down with trivial details operation of dismantlement and spare part are lost is avoided in the setting of the connecting element of shaft seal case body lateral surface.
The utility model discloses a realize through following measure: a shaft seal device comprises a shaft seal box body matched with a shaft sleeve of a centrifugal pump, a packing gland matched with a top port of the shaft seal box body, a buckling assembly and a connecting element, wherein the buckling assembly is arranged between the shaft seal box body and the packing gland;
the side surface of the inner circle of the circular ring base is provided with a slideway which is respectively matched with the limiting structure and the buckling element, and the upper end of the slideway is provided with a plurality of openings for accommodating the limiting structure and the buckling element at equal intervals;
the buckling element comprises a guide rod A, a pressure spring and a buckling piece, wherein the guide rod A is mutually inserted with the side face of the opening, the pressure spring is sleeved on the guide rod A, the buckling piece is connected to the guide rod A, the buckling end part of the buckling piece is a wedge-shaped buckling block, and the wedge-shaped buckling block is mutually buckled with the circumferential edge of the buckling element;
the connecting element comprises a U-shaped frame, a limiting part B arranged in the U-shaped frame and a buckling mechanism positioned between two opposite side plates of the U-shaped frame.
The U-shaped frame is characterized in that at least three guide notches are formed in a connecting plate between two opposite side plates of the U-shaped frame at equal intervals, a first connecting rod is arranged below the guide notches and close to one edge of the connecting plate, two groups of guide holes are formed in the two opposite side plates of the U-shaped frame respectively, and the diameter of each guide hole in one side plate is larger than that of each guide hole in the other side plate.
The limiting part B is composed of a limiting plate, a plurality of limiting grooves which are arranged on the limiting plate at equal intervals, a second connecting rod and a sliding groove which are arranged below the limiting grooves and are arranged on the limiting plate, and each wedge-shaped limiting block is arranged on the inner side surface of each limiting groove.
The buckling mechanism comprises a pressing rod, a guide rod B connected to the bottom surface of the pressing rod, a positioning rod arranged on the outer side surface of the pressing rod, a limiting plug arranged on the bottom surface of the guide rod B, and a pressure spring B wound on the guide rod B.
A plurality of semicircular limiting openings are formed in the pressure rod at equal intervals.
And a return spring is arranged between the first connecting rod and the second connecting rod.
The limiting structure comprises a hinged seat fixedly connected with the bottom surface inside the circular ring base, a limiting part A hinged to the hinged seat, one end of a pressure spring A connected to the limiting part A, and the other end of the pressure spring A is connected to the side face of the inner circle of the slide way.
The limiting part A is provided with a semi-circular limiting block matched with the slide way, a positioning block arranged at the top of the semi-circular limiting block and a buckling groove corresponding to the semi-circular limiting block, and the buckling groove is matched with the gasket; and the middle part of the gasket is provided with a mounting hole which is sleeved with the connecting shaft in the middle part of the shaft seal box body.
The bottom surface of the semicircular arc limiting block is provided with a hinged sleeve movably connected with the hinged seat.
The utility model has the advantages that: the utility model discloses a set up the bearing seal case body on centrifugal pump shaft cover, with bearing seal case body top port matched with gland to and set up the lock subassembly between bearing seal case body and gland and seal up the centrifugal pump shaft, the lock subassembly counter shaft seal case body carries out the lock with gland and fixes, and is sealed effectual.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 3 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a limiting structure in an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the limiting structure in the embodiment of the present invention.
Fig. 6 is a schematic structural diagram of the limiting structure in the embodiment of the present invention.
Fig. 7 is a schematic structural view of a fastening element according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a connecting element according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of a U-shaped frame according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a limiting member according to an embodiment of the present invention.
Fig. 11 is a schematic structural view of a fastening mechanism according to an embodiment of the present invention.
Wherein the reference numerals are: 1. a shaft seal box body; 2. a packing gland; 3. a fastening component; 30. a circular ring base; 300. a slideway; 301. an opening; 31. a limiting structure; 310. a hinged seat; 311. a limiting part A; 3110. a semicircular arc limiting block; 3111. positioning blocks; 3112. buckling the groove; 3113. a hinge sleeve; 312. a pressure spring A; 32. a fastening element; 320. a guide rod A; 321. a fastener; 33. a gasket; 4. a connecting element; 7. a U-shaped frame; 8. a limiting member B; 80. a limiting plate; 81. a limiting groove; 82. a second connecting rod; 83. a chute; 84. a wedge-shaped limiting block; 9. a fastening mechanism; 90. a pressure lever; 91. a guide rod B; 92. positioning a rod; 93. a limiting plug; 94. a pressure spring B; 920. a semicircular limiting opening; 1322. a return spring; 11. a connecting plate; 12. a guide slot opening; 13. and a first connecting rod.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Referring to fig. 1 to 11, the present invention is: a shaft seal device comprises a shaft seal box body 1 matched with a shaft sleeve of a centrifugal pump, a packing gland 2 matched with a top port of the shaft seal box body 1, a buckling component 3 arranged between the shaft seal box body 1 and the packing gland 2, and a connecting element 4 arranged on the outer side surface of the shaft seal box body 1, wherein the buckling component 3 comprises a ring base 30 matched with the shaft seal box body 1, a plurality of limiting structures 31 and buckling elements 32 arranged on the inner circle side surface of the ring base 30 at equal intervals, and gaskets 33 buckled on the limiting structures 31 and the buckling elements 32;
the inner circle side surface of the circular ring base 30 is provided with a slideway 300 which is respectively matched with the limiting structure 31 and the buckling element 32, and the upper end of the slideway 300 is provided with a plurality of openings 301 for accommodating the limiting structure 31 and the buckling element 32 at equal intervals;
the buckling element 32 comprises a guide rod A320 which is mutually inserted with the side surface of the opening 301, a pressure spring sleeved on the guide rod A320 and a buckling piece 321 connected to the guide rod A320, wherein the buckling end part of the buckling piece 321 is a wedge-shaped buckling block, and the wedge-shaped buckling block is mutually buckled with the circumferential edge of the buckling element 32;
the connecting element 4 comprises a U-shaped frame 7, a stopper B8 disposed inside the U-shaped frame 7, and a snapping mechanism 9 disposed between two opposite side plates of the U-shaped frame 7.
At least three guide notches 12 are formed in a connecting plate 11 between two opposite side plates of the U-shaped frame 7 at equal intervals, a connecting rod I13 is arranged on one edge, close to the connecting plate 11, below the guide notches 12, two groups of guide holes are formed in two opposite side plates of the U-shaped frame 7 respectively, and the diameter of each guide hole in one side plate is larger than that of each guide hole in the other side plate.
The limiting piece B8 is composed of a limiting piece 80, a plurality of limiting grooves 81 arranged on the limiting piece 80 at equal intervals, a second connecting rod 82 arranged on the limiting piece 80 below the limiting grooves 81 and a sliding groove 83, and a wedge-shaped limiting piece 84 is arranged on the inner side surface of each limiting groove 81.
The buckling mechanism 9 comprises a pressing rod 90, a guide rod B91 connected to the bottom surface of the pressing rod 90, a positioning rod 92 arranged on the outer side surface of the pressing rod 90, a limiting plug 93 arranged on the bottom surface of the guide rod B91, and a pressure spring 94B wound on the guide rod B91.
The pressure lever 90 is provided with a plurality of semicircular limiting openings 920 at equal intervals.
A return spring 1322 is arranged between the first connecting rod 13 and the second connecting rod 82.
The limiting structure 31 includes a hinge base 310 fixedly connected to the bottom surface inside the circular base 30, a limiting member a311 hinged to the hinge base 310, and a pressure spring a312 having one end connected to the limiting member a311, and the other end of the pressure spring a312 is connected to the inner circular side surface of the slide 300.
A semi-arc limiting block 3110 matched with the slide way 300, a positioning block 3111 arranged at the top of the semi-arc limiting block 3110, a fastening groove 3112 corresponding to the semi-arc limiting block 3110, and the fastening groove 3112 matched with the gasket 33 are arranged on the limiting block A311; the middle part of the gasket 33 is provided with a mounting hole which is sleeved with the connecting shaft in the middle part of the shaft seal box body 1.
The bottom surface of the semi-arc stopper 3110 is provided with a hinge sleeve 3113 movably connected with the hinge seat 310.
The technical features that the utility model has not been described can be realized through or adopt prior art, and no longer give unnecessary details here, and of course, the above-mentioned explanation is not right the utility model discloses a restriction, the utility model discloses also not only be limited to the above-mentioned example, ordinary skilled person in this technical field is in the utility model discloses a change, modification, interpolation or replacement made in the essential scope also should belong to the utility model discloses a protection scope.
Claims (9)
1. The shaft seal device is characterized by comprising a shaft seal box body (1) matched with a shaft sleeve of a centrifugal pump, a packing gland (2) matched with a top port of the shaft seal box body (1), a buckling assembly (3) arranged between the shaft seal box body (1) and the packing gland (2), and a connecting element (4) arranged on the outer side surface of the shaft seal box body (1), wherein the buckling assembly (3) comprises a ring base (30) matched with the shaft seal box body (1), a plurality of limiting structures (31) and buckling elements (32) which are arranged on the inner circle side surface of the ring base (30) at equal intervals, and gaskets (33) buckled on the limiting structures (31) and the buckling elements (32);
the inner circle side surface of the circular ring base (30) is provided with a slide way (300) which is respectively matched with the limiting structure (31) and the buckling element (32), and the upper end of the slide way (300) is provided with a plurality of openings (301) which are used for accommodating the limiting structure (31) and the buckling element (32) at equal intervals;
the buckling element (32) comprises a guide rod A (320) which is mutually inserted with the side face of the opening (301), a pressure spring sleeved on the guide rod A (320), and a buckling piece (321) connected to the guide rod A (320), wherein the buckling end part of the buckling piece (321) is a wedge-shaped buckling block, and the wedge-shaped buckling block is mutually buckled with the circumferential edge of the buckling element (32);
the connecting element (4) comprises a U-shaped frame (7), a limiting piece B (8) arranged in the U-shaped frame (7), and a buckling mechanism (9) located between two opposite side plates of the U-shaped frame (7).
2. The shaft seal device according to claim 1, characterized in that the connecting plate (11) between the two opposite side plates of the U-shaped frame (7) is provided with at least three guide notches (12) at equal intervals, a first connecting rod (13) is arranged below the guide notches (12) and close to one edge of the connecting plate (11), two sets of guide holes are respectively arranged on the two opposite side plates of the U-shaped frame (7), wherein the diameter of the guide hole on one side plate is larger than that of the guide hole on the other side plate.
3. The shaft sealing device according to claim 2, characterized in that the limiting member B (8) comprises a limiting plate (80), a plurality of limiting grooves (81) arranged on the limiting plate (80) at equal intervals, a second connecting rod (82) and a sliding groove (83) arranged on the limiting plate (80) below the limiting grooves (81), and a wedge-shaped limiting member (84) is arranged on the inner side surface of each limiting groove (81).
4. The shaft sealing device according to claim 1, characterized in that the buckling mechanism (9) comprises a pressing rod (90), a guide rod B (91) connected to the bottom surface of the pressing rod (90), a positioning rod (92) arranged on the outer side surface of the pressing rod (90), a limiting plug (93) arranged on the bottom surface of the guide rod B (91), and a compression spring B (94) wound on the guide rod B (91).
5. The shaft seal device according to claim 4, characterized in that the pressure lever (90) is provided with a plurality of semicircular limiting openings (920) at equal intervals.
6. Shaft sealing device according to claim 3, characterized in that a return spring (1322) is provided between the first connecting rod (13) and the second connecting rod (82).
7. The shaft sealing device according to claim 1, characterized in that the limiting structure (31) comprises a hinge base (310) fixedly connected with the bottom surface inside the circular base (30), a limiting member A (311) hinged on the hinge base (310), a pressure spring A (312) with one end connected to the limiting member A (311), and the other end of the pressure spring A (312) is connected to the inner circular side surface of the slideway (300).
8. The shaft seal device according to claim 7, wherein the position-limiting member A (311) is provided with a semi-circular-arc position-limiting member (3110) engaged with the slide way (300), a positioning block (3111) disposed on the top of the semi-circular-arc position-limiting member (3110), and a fastening groove (3112) corresponding to the semi-circular-arc position-limiting member (3110), wherein the fastening groove (3112) is engaged with the gasket (33); and the middle part of the gasket (33) is provided with a mounting hole which is sleeved with the connecting shaft in the middle part of the shaft seal box body (1).
9. The shaft seal arrangement according to claim 8, characterized in that the bottom surface of the semi-circular stopper (3110) is provided with a hinge sleeve (3113) movably connected with the hinge seat (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594276.5U CN209818384U (en) | 2019-04-28 | 2019-04-28 | Shaft seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594276.5U CN209818384U (en) | 2019-04-28 | 2019-04-28 | Shaft seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818384U true CN209818384U (en) | 2019-12-20 |
Family
ID=68881920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920594276.5U Active CN209818384U (en) | 2019-04-28 | 2019-04-28 | Shaft seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818384U (en) |
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2019
- 2019-04-28 CN CN201920594276.5U patent/CN209818384U/en active Active
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