CN214837333U - Seal structure of leading pump case - Google Patents
Seal structure of leading pump case Download PDFInfo
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- CN214837333U CN214837333U CN202121183959.5U CN202121183959U CN214837333U CN 214837333 U CN214837333 U CN 214837333U CN 202121183959 U CN202121183959 U CN 202121183959U CN 214837333 U CN214837333 U CN 214837333U
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Abstract
The utility model discloses a seal structure of leading pump case, include: the outer side of the shaft body is provided with a sealing installation shell, the inner side of the sealing installation shell is provided with a joint rod, and the outer side of the joint rod is provided with a positioning rod arranged in the sealing installation shell; the outer static ring is arranged on the right side of the fitting block, an inner static ring arranged on the outer side of the shaft body is arranged on the inner side of the outer static ring, and an installation rod arranged in the sealed installation shell is fixed on the outer side of the outer static ring; the connecting block is arranged on the right side of the outer static ring, a sealing rod is arranged on the upper side of the outer static ring, a fixing block is fixed on the lower side of the connecting block, and a reinforcing rod is arranged on the right side of the fixing block. This seal structure of leading pump case can discharge the heat that inside produced to avoid quiet ring to influence the leakproofness because of the certain inflation of heat production, and be convenient for carry out appropriate reinforcement to the sealed degree of quiet ring, in order to avoid quiet ring not hard up and influence sealed effect to appear.
Description
Technical Field
The utility model relates to a leading pump technical field specifically is a seal structure of leading pump case.
Background
Because the water temperature at the inlet of the feed pump is close to the saturation temperature under the pressure, the working condition is severe, vaporization is easy to occur, in order to ensure the safe operation of the feed pump, a low-speed front pump with the flow matched with the feed pump is generally configured for the feed pump, and the front pump can be sealed by adopting a sealing structure in the installation process or in the middle, so that the safety is ensured.
Chinese patent authorizes that publication number is CN 211852255U's a mechanical seal device for leading pump of power plant belongs to power plant equipment application technical field, and this mechanical seal device for leading pump of power plant includes the bearing, bearing circumference inner wall is provided with the axle sleeve sealing ring, and bearing circumference outer wall has cup jointed the rotating ring sealing ring, and bearing circumference outer wall has cup jointed the spring shim near spring department, bearing circumference outer wall has cup jointed the holding ring. The sealing ring of the shaft sleeve ensures the sealing performance when the inner wall of the bearing is connected with other articles; the elasticity of the whole device is enhanced by arranging the spring; the spring gasket is arranged, so that the elastic force of the buffer spring can be buffered; the positioning ring is arranged to play a role in determining the running track of the spring; the static ring sealing ring is arranged, so that the sealing performance of the static ring is enhanced; through being provided with the gland for quiet ring can be fixed, through being provided with the fixed axle, makes the gland can be fixed.
The above prior art solutions have the following drawbacks: the heat that produces the inside is not convenient for discharge, and is not convenient for carry out appropriate reinforcement to the sealed degree of quiet ring, consequently, the utility model provides a seal structure of leading pump case to solve the above-mentioned problem that proposes.
Disclosure of Invention
An object of the utility model is to provide a seal structure of leading pump case to the heat that the inside produced is not convenient for discharge that proposes in solving above-mentioned background art, and is not convenient for carry out the problem of appropriate reinforcement to the sealed degree of quiet ring.
In order to achieve the above object, the utility model provides a following technical scheme: a seal structure of a front pump casing, comprising:
the outer side of the shaft body is provided with a sealing installation shell, a ball for reducing friction is arranged between the sealing installation shell and a gap of the shaft body, the inner side of the sealing installation shell is provided with an engaging rod, the right end of the engaging rod is fixedly provided with a fitting block, the outer side of the engaging rod is provided with a positioning rod arranged in the sealing installation shell, and the upper side of the positioning rod is provided with a sealing sleeve arranged on the outer side of the shaft body;
the outer static ring is arranged on the right side of the fitting block, an inner static ring arranged on the outer side of the shaft body is arranged on the inner side of the outer static ring, an installation rod arranged in the sealed installation shell is fixed on the outer side of the outer static ring, and a weight reduction cavity which is arranged in the sealed installation shell and used for reducing weight and dissipating heat is arranged on the right side of the installation rod;
the connection block is arranged on the right side of the outer static ring, a sealing rod is arranged on the upper side of the outer static ring, the sealing block arranged in the seal installation shell is arranged on the upper side of the sealing rod, a fixing block is fixed on the lower side of the connection block, a reinforcing rod is arranged on the right side of the fixing block, and an adjusting rod arranged in the seal installation shell is arranged on the inner side of the outer end of the reinforcing rod.
As the utility model discloses a preferred technical scheme, interior quiet ring is connected for the block with the axis body, and interior quiet ring is interference fit's nested connection with outer quiet ring to the fixed installation pole of outer quiet ring upside passes through spring and seal installation shell and constitutes elastic connection.
Adopt above-mentioned technical scheme, can increase the leakproofness to the axis body outside, reduce the possibility of revealing.
As the utility model discloses a preferred technical scheme, the slope setting is personally submitted on the right side of linking up the piece, and the right flank of linking up the piece personally submits the laminating setting with the inboard of anchor strut to the outer end and the regulation pole of anchor strut are threaded connection.
Adopt above-mentioned technical scheme, can the rotation regulation pole make the anchor strut increase the laminating degree to linking up the piece to the left end that makes the linking up the piece outwards quiet ring further laminates, makes the laminating degree between quiet ring and the axis body inseparabler outward.
As the utility model discloses an optimal technical scheme, the seal cover is nested connection with the locating lever, and the longitudinal section of locating lever is "I" style of calligraphy to the locating lever is elastic connection with the seal installation shell, and the cavity structures big-end-up is seted up to the inboard of seal installation shell moreover.
Adopt above-mentioned technical scheme, can seal the outside of seal installation shell temporarily, and when the inboard needs of seal installation shell exhaust, can discharge hot gas.
As the utility model discloses an optimal technical scheme, sealing rod and sealed piece are sliding connection, and sealing rod and sealed piece set up for the laminating to the upper end longitudinal section of sealing rod is "mountain" style of calligraphy.
By adopting the technical scheme, the sealing rod can adapt to the descending movement of the joining block, and the joint between the sealing rod and the sealing block is always kept so as to ensure the sealing property.
As the utility model discloses an optimized technical scheme, the lower extreme left end face of fixed block is the slope setting.
Adopt above-mentioned technical scheme for link up the piece and at the in-process that moves left, can ensure that the piece that links up is in certain inside removal to apply the power of inside removal to outer quiet ring, thereby make the laminating degree between outer quiet ring and the axis body inseparabler.
Compared with the prior art, the beneficial effects of the utility model are that: the sealing structure of the pump shell of the front pump can discharge heat generated inside so as to avoid the influence of certain expansion of the static ring due to the heat on the sealing performance, and is convenient for properly reinforcing the sealing degree of the static ring so as to avoid the influence of looseness of the static ring on the sealing effect;
1. the positioning rod and the seal mounting shell are in elastic connection, and a cavity structure with a large upper part and a small lower part is arranged on the inner side of the seal mounting shell, when the inner side of the seal mounting shell needs to be exhausted, the positioning rod moves outwards due to thermal expansion of gas, so that hot gas in the cavity is exhausted, the static ring is prevented from expanding to a certain extent due to heat to influence the sealing property, and meanwhile, the wall thickness of the seal mounting shell can be reduced through a weight reduction cavity arranged on the inner side of the seal mounting shell, so that the heat dissipation benefit is increased;
2. the inner static ring and the outer static ring are in interference fit nested connection, and the mounting rod fixed on the upper side of the outer static ring is elastically connected with the seal mounting shell through the spring, so that the sealing performance of the outer side of the shaft body can be improved, and the possibility of leakage is reduced;
3. the right side face of the joining block is obliquely arranged and the right side face of the joining block and the inner side face of the reinforcing rod are in fit arrangement, the outer end of the reinforcing rod is in threaded connection with the adjusting rod, the adjusting rod can be rotated to increase the fit degree of the reinforcing rod to the joining block, so that the left end of the joining block is further fitted to the outer static ring, the fit degree between the outer static ring and the shaft body is more compact, and the static ring is prevented from loosening to affect the sealing effect.
Drawings
Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;
FIG. 2 is a schematic view of a side view of the connection between the sealing rod and the sealing block of the present invention;
FIG. 3 is a schematic view of the structure of the outer stationary ring of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
fig. 5 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.
In the figure: 1. a shaft body; 2. hermetically installing a shell; 3. a reinforcing rod; 4. adjusting a rod; 5. a joining block; 6. an outer stationary ring; 7. a ball bearing; 8. an inner stationary ring; 9. a connecting rod; 10. positioning a rod; 11. sealing sleeves; 12. mounting a rod; 13. a weight-reducing cavity; 14. fitting blocks; 15. a sealing block; 16. a sealing rod; 17. and (5) fixing blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a seal structure of a pump shell of a front pump comprises a seal installation shell 2 arranged on the outer side of a shaft body 1, a ball 7 used for reducing friction is arranged between the seal installation shell 2 and a gap of the shaft body 1, an engaging rod 9 is arranged on the inner side of the seal installation shell 2, a fitting block 14 is fixed at the right end of the engaging rod 9, a positioning rod 10 arranged in the seal installation shell 2 is arranged on the outer side of the engaging rod 9, a seal sleeve 11 arranged on the outer side of the shaft body 1 is arranged on the upper side of the positioning rod 10, an outer static ring 6 is arranged on the right side of the fitting block 14, an inner static ring 8 arranged on the outer side of the shaft body 1 is arranged on the inner side of the outer static ring 6, an installation rod 12 arranged in the seal installation shell 2 is fixed on the outer side of the outer static ring 6, a weight reducing cavity 13 used for reducing weight and radiating heat is arranged on the right side of the installation rod 12, the engaging block 5 is arranged on the right side of the outer static ring 6, and the upside of outer quiet ring 6 is provided with sealing rod 16 to the upside of sealing rod 16 is provided with the sealed piece 15 of installing in seal installation shell 2, and the downside of linking piece 5 is fixed with fixed block 17, and the right side of fixed block 17 is provided with stiffening rod 3, and the outer end inboard of stiffening rod 3 is provided with the regulation pole 4 of installing in seal installation shell 2.
When the device is used, as shown in fig. 1 and 5 in particular, in the rotation process of the shaft body 1, the rotation friction force between the shaft body 1 and the seal installation shell 2 can be reduced through the balls 7, in addition, in the rotation process, the friction heat of movement is easy to generate, the wall thickness of the seal installation shell 2 can be reduced through the weight reduction cavity 13 formed in the inner side of the seal installation shell 2, so that the heat dissipation benefit is increased, and after a certain amount of hot air is generated in the inner side of the seal installation shell 2, the internal air is expanded, the positioning rod 10 moves outwards, the seal sleeve 11 is not attached to the seal installation shell 2 any more, and the hot air in the cavity structure is discharged;
in the using process, the inner stationary ring 8 and the outer stationary ring 6 are in interference fit nested connection, the mounting rod 12 fixed on the upper side of the outer stationary ring 6 is in elastic connection with the seal mounting shell 2 through a spring, the sealing performance on the outer side of the shaft body 1 can be improved, the nesting between the outer stationary ring 6 and the inner stationary ring 8 and the fitting between the outer stationary ring 6 and the shaft body 1 can be tighter through the elastic connection between the connecting rod 9 and the seal mounting shell 2 and the elastic connection between the mounting rod 12 and the seal mounting shell 2, and the fitting between the outer stationary ring 6 and the shaft body 1 can be tighter, and when the fitting degree between the outer stationary ring 6 and the shaft body 1 needs to be reinforced, specifically as shown in figures 2, 3 and 4, the adjusting rod 4 is rotated to increase the fitting degree of the reinforcing rod 3 to the connecting block 5, so that the left end of the outer stationary ring 5 is further fitted to the outer stationary ring 6, make the laminating degree between outer quiet ring 6 and the axis body 1 inseparabler, and set up for the laminating through sealing rod 16 and sealing block 15 and the upper end longitudinal section of sealing rod 16 is "mountain" style of calligraphy, can adapt to the decline of linking piece 5 and remove, remain the laminating between sealing rod 16 and the sealing block 15 throughout, and the lower extreme left end face through fixed block 17 is the slope setting, make linking piece 5 at the in-process that removes left, can ensure to link up piece 5 and be located certain inside removal, in order to exert the power of inside removal to outer quiet ring 6, thereby make the laminating degree between outer quiet ring 6 and the axis body 1 inseparabler.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. A seal structure of a front pump casing, comprising:
the outer side of the shaft body is provided with a sealing installation shell, a ball for reducing friction is arranged between the sealing installation shell and a gap of the shaft body, the inner side of the sealing installation shell is provided with an engaging rod, the right end of the engaging rod is fixedly provided with a fitting block, the outer side of the engaging rod is provided with a positioning rod arranged in the sealing installation shell, and the upper side of the positioning rod is provided with a sealing sleeve arranged on the outer side of the shaft body;
the outer static ring is arranged on the right side of the fitting block, an inner static ring arranged on the outer side of the shaft body is arranged on the inner side of the outer static ring, an installation rod arranged in the sealed installation shell is fixed on the outer side of the outer static ring, and a weight reduction cavity which is arranged in the sealed installation shell and used for reducing weight and dissipating heat is arranged on the right side of the installation rod;
the connection block is arranged on the right side of the outer static ring, a sealing rod is arranged on the upper side of the outer static ring, the sealing block arranged in the seal installation shell is arranged on the upper side of the sealing rod, a fixing block is fixed on the lower side of the connection block, a reinforcing rod is arranged on the right side of the fixing block, and an adjusting rod arranged in the seal installation shell is arranged on the inner side of the outer end of the reinforcing rod.
2. A seal structure of a casing of a front pump according to claim 1, wherein: the inner stationary ring is connected with the shaft body in a clamping mode, the inner stationary ring is connected with the outer stationary ring in an interference fit nested mode, and the mounting rod fixed to the upper side of the outer stationary ring is in elastic connection with the sealing mounting shell through a spring.
3. A seal structure of a casing of a front pump according to claim 1, wherein: the right side face of the joining block is obliquely arranged, the right side face of the joining block is attached to the inner side face of the reinforcing rod, and the outer end of the reinforcing rod is in threaded connection with the adjusting rod.
4. A seal structure of a casing of a front pump according to claim 1, wherein: the seal cover is connected with the positioning rod in a nested mode, the longitudinal section of the positioning rod is in an I shape, the positioning rod is elastically connected with the seal installation shell, and a cavity structure with a large upper part and a small lower part is arranged on the inner side of the seal installation shell.
5. A seal structure of a casing of a front pump according to claim 1, wherein: the sealing rod is connected with the sealing block in a sliding mode, the sealing rod is attached to the sealing block, and the longitudinal section of the upper end of the sealing rod is in a shape like a Chinese character 'shan'.
6. A seal structure of a casing of a front pump according to claim 1, wherein: the lower end left end face of the fixed block is obliquely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121183959.5U CN214837333U (en) | 2021-05-31 | 2021-05-31 | Seal structure of leading pump case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121183959.5U CN214837333U (en) | 2021-05-31 | 2021-05-31 | Seal structure of leading pump case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837333U true CN214837333U (en) | 2021-11-23 |
Family
ID=78781061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121183959.5U Active CN214837333U (en) | 2021-05-31 | 2021-05-31 | Seal structure of leading pump case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837333U (en) |
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2021
- 2021-05-31 CN CN202121183959.5U patent/CN214837333U/en active Active
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