CN212626546U - Welding type stuffing box for ship - Google Patents
Welding type stuffing box for ship Download PDFInfo
- Publication number
- CN212626546U CN212626546U CN202021907540.5U CN202021907540U CN212626546U CN 212626546 U CN212626546 U CN 212626546U CN 202021907540 U CN202021907540 U CN 202021907540U CN 212626546 U CN212626546 U CN 212626546U
- Authority
- CN
- China
- Prior art keywords
- cavity
- gland bolt
- base
- packing ring
- stuffing box
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000005493 welding type Methods 0.000 title description 5
- 238000012856 packing Methods 0.000 claims abstract description 58
- 210000004907 gland Anatomy 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 12
- 238000009826 distribution Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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- Sealing Devices (AREA)
Abstract
The utility model discloses a welded stuffing box for ships, which comprises a base, a left gland bolt, a left packing ring, a right gland bolt and a right packing ring, wherein the base is in a hollow sleeve shape, a circumferential blocking part is integrally arranged at the axial middle position of the cylindrical inner wall of the base, the left end of the circumferential blocking part forms a left cavity in the base, and the right end of the circumferential blocking part forms a right cavity in the base; the left packing ring is circumferentially arranged in the left cavity, an internal thread is formed on the inner wall of the left cavity, a left gland bolt is provided with an external thread matched with the internal thread, and the left gland bolt is rotatably arranged in the left cavity; the right packing ring is circumferentially arranged in the left cavity, an internal thread is formed in the inner wall of the right cavity, a right gland bolt is provided with an external thread matched with the internal thread, and the right gland bolt is rotatably arranged in the right cavity. The product improves the problem of abrasion of the surface of the cable shaft, so that the filler has enough service life and the sealing performance is also improved.
Description
Technical Field
The utility model relates to a packing box especially relates to a welded type packing box for boats and ships.
Background
The stuffing box is widely applied to the industries of ship manufacturing, rolling stocks, bridges, electric power, communication and the like, particularly, the requirement on the sealing property of the stuffing box is higher due to the influence of the external environment on a ship, and generally, a cable is locked on an electric cabinet box body by using the stuffing box on the ship.
The soft packing in the stuffing box is expanded radially under the action of the axial force of the gland to reach the aim of sealing. The filler is often composed of fibers, lubricants and various wire reinforcements, and can be compensated for by tightening the bolts after the filler is worn. However, the packing has large contact area, large frictional resistance, large power consumption and large abrasion, and short service life, and in practical application, in order to obtain better sealing performance, a plurality of circles of packing is often added, and then the pressing force of the packing is increased. That is, the pressing force is maximized at 2-3 circles of packing close to the gland, and the friction force is maximized at the position, so that the position with large pressing force is worn quickly under the condition of uneven stress.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a welding type stuffing box for ships.
In order to solve the technical problem, the utility model discloses a technical scheme is: a welding type stuffing box for a ship comprises a base, a left gland bolt, a left stuffing ring, a right gland bolt and a right stuffing ring, wherein the base is in a hollow sleeve shape, a circumferential blocking part is integrally arranged at the axial middle position of the cylindrical inner wall of the base, the left end of the circumferential blocking part forms a left cavity in the base, and the right end of the circumferential blocking part forms a right cavity in the base;
the left packing ring is circumferentially arranged in the left cavity, an internal thread is formed on the inner wall of the left cavity, a left gland bolt is provided with an external thread matched with the internal thread, and the left gland bolt is rotatably arranged in the left cavity;
the right packing ring is circumferentially arranged in the left cavity, an internal thread is formed in the inner wall of the right cavity, a right gland bolt is provided with an external thread matched with the internal thread, and the right gland bolt is rotatably arranged in the right cavity.
Furthermore, the number of the left packing rings and the number of the right packing rings are respectively three, the three left packing rings are arranged in the left cavity in parallel, and the three right packing rings are arranged in the right cavity in parallel.
Furthermore, the left packing ring and the right packing ring are made of rubber materials.
Furthermore, a left sealing ring is arranged between the left end face of the base and the contact part of the left gland bolt.
Further, a right sealing ring is arranged between the right end face of the base and a contact part of the right gland bolt.
Further, the left gland bolt and the right gland bolt are both hexagon bolts.
The utility model discloses an useful part lies in: the stress condition of the traditional mode is improved by a mode of separately arranging the packing ring on the base. The left packing ring and the right packing ring are respectively provided with three packing rings, so that the problem that the abrasion of the packing and the surface of a cable shaft is easily accelerated due to the fact that the whole sealing surface is long, the friction area is large, the heating amount is large, the friction power consumption is large is solved. Meanwhile, the left side and the right side of the cable shaft in the base can be uniformly stressed for the left packing ring and the right packing ring, so that the friction performance is improved, the packing has enough service life, and the sealing performance is also improved.
Drawings
Fig. 1 is a schematic structural diagram of the window frame of the present invention.
In the figure: 1. a base; 2. a left gland bolt; 3. a left packing ring; 4. a right gland bolt; 5. a right packing ring; 6. a circumferential blocking portion; 7. a left cavity; 8. a right cavity; 9. a left sealing ring; 10. and a right sealing ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The welding type stuffing box for the ship shown in fig. 1 comprises a base 1, a left gland bolt 2, a left stuffing ring 3, a right gland bolt 4 and a right stuffing ring 5, wherein the base 1 is in a hollow sleeve shape, a circumferential blocking part 6 is integrally arranged at the axial middle position of the cylindrical inner wall of the base 1, the left end of the circumferential blocking part 6 forms a left cavity 7 in the base 1, and the right end of the circumferential blocking part 6 forms a right cavity 8 in the base 1;
the left packing ring 3 is circumferentially arranged in the left cavity 7 and is limited by the circumferential blocking part 6 and the inner wall of the left cavity 7, meanwhile, an inner thread is formed on the inner wall of the left cavity 7, and the left gland bolt 2 is provided with an outer thread matched with the inner thread, so that the left gland bolt 2 is rotationally arranged in the left cavity 7;
the same, right packing ring 5 sets up in left cavity 7 along circumference, and the inner wall of right cavity 8 is seted up there is the internal thread, and right gland bolt 4 is equipped with internal thread assorted external screw thread, and right gland bolt 4 is rotatory to be set up in right cavity 8, and is preferred, and left gland bolt 2 and right gland bolt 4 are the hex bolts.
The utility model discloses the quantity of well left packing ring 3 and right packing ring 5 respectively has threely, and three left packing ring 3 sets up side by side in left cavity 7, and three right packing ring 5 sets up side by side in right cavity 8.
Preferably, the left packing ring 3 and the right packing ring 5 are made of rubber materials, and the rubber materials have good wear resistance and damage resistance.
Preferably, a left sealing ring 9 is arranged between the left end surface of the base 1 and the contact part of the left gland bolt 2; a right sealing ring 10 is arranged between the right end face of the base 1 and the contact part of the right gland bolt 4, and the sealing performance between the base 1 and the left gland bolt 2 and between the base and the right gland bolt 4 can be further improved.
When the traditional stuffing box is used, the stuffing box is sealed by the pressing force of the stuffing on a cable shaft, the pressing force is respectively from the pressing force of a bolt, and as the stuffing is also an elastoplastic body, after the axial pressing force of the bolt is applied, friction is generated to gradually reduce the pressing force along the axial direction, and meanwhile, the generated radial pressing force enables the stuffing to be tightly attached to the surface of the shaft. The distribution of radial compression force is from the outer end to the inner end, and the distribution is gradually reduced rapidly and then gradually reduced; the distribution of medium pressure is gradually decreased from the inner end to the outer end, and the analysis shows that the distribution of the radial pressing force of the filler is just opposite to the distribution of the medium pressure, the medium pressure at the inner end is the maximum, a larger sealing force is applied, and the radial pressing force of the filler is just the minimum at the moment, so that the pressing force is proved not to play a role well. In practice, to achieve sealing performance, the packing compression is often increased to maximize radial compression at 2-3 turns of packing near the bolt shaft, and of course, friction is also increased, which results in the abnormal wear conditions shown for the packing and shaft.
The welded stuffing box for the ship improves the stress condition of the traditional mode by separately arranging the stuffing rings on the base. The left packing ring and the right packing ring are respectively provided with three packing rings, so that the problem that the abrasion of the packing and the surface of a cable shaft is easily accelerated due to the fact that the whole sealing surface is long, the friction area is large, the heating amount is large, the friction power consumption is large is solved. Meanwhile, the left side and the right side of the cable shaft in the base can be uniformly stressed for the left packing ring and the right packing ring, so that the friction performance is improved, the packing has enough service life, and the sealing performance is also improved.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a welded type stuffing box for boats and ships which characterized in that: the packing device comprises a base (1), a left gland bolt (2), a left packing ring (3), a right gland bolt (4) and a right packing ring (5), wherein the base (1) is in a hollow sleeve shape, a circumferential blocking part (6) is integrally arranged at the axial middle position of the cylindrical inner wall of the base (1), the left end of the circumferential blocking part (6) forms a left cavity (7) in the base (1), and the right end of the circumferential blocking part (6) forms a right cavity (8) in the base (1);
the left packing ring (3) is circumferentially arranged in the left cavity (7), an internal thread is formed in the inner wall of the left cavity (7), an external thread matched with the internal thread is formed on the left gland bolt (2), and the left gland bolt (2) is rotatably arranged in the left cavity (7);
the right packing ring (5) is arranged in the left cavity (7) along the circumferential direction, an internal thread is formed in the inner wall of the right cavity (8), an external thread matched with the internal thread is arranged on the right gland bolt (4), and the right gland bolt (4) is rotatably arranged in the right cavity (8).
2. The welded stuffing box for ships according to claim 1, wherein: the number of the left packing rings (3) and the number of the right packing rings (5) are respectively three, the three left packing rings (3) are arranged in the left cavity (7) in parallel, and the three right packing rings (5) are arranged in the right cavity (8) in parallel.
3. The welded stuffing box for ships according to claim 2, wherein: the left packing ring (3) and the right packing ring (5) are both made of rubber materials.
4. The welded stuffing box for ships according to claim 3, wherein: and a left sealing ring (9) is arranged between the left end surface of the base (1) and the contact part of the left gland bolt (2).
5. The welded stuffing box for ships according to claim 4, wherein: and a right sealing ring (10) is arranged between the right end surface of the base (1) and the contact part of the right gland bolt (4).
6. The welded stuffing box for ships according to claim 5, wherein: and the left gland bolt (2) and the right gland bolt (4) are both hexagon bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021907540.5U CN212626546U (en) | 2020-09-03 | 2020-09-03 | Welding type stuffing box for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021907540.5U CN212626546U (en) | 2020-09-03 | 2020-09-03 | Welding type stuffing box for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212626546U true CN212626546U (en) | 2021-02-26 |
Family
ID=74705181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021907540.5U Expired - Fee Related CN212626546U (en) | 2020-09-03 | 2020-09-03 | Welding type stuffing box for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212626546U (en) |
-
2020
- 2020-09-03 CN CN202021907540.5U patent/CN212626546U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |