CN220168274U - Combined sealing device for grinding roller hydraulic cylinder of vertical mill - Google Patents
Combined sealing device for grinding roller hydraulic cylinder of vertical mill Download PDFInfo
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- CN220168274U CN220168274U CN202321578024.6U CN202321578024U CN220168274U CN 220168274 U CN220168274 U CN 220168274U CN 202321578024 U CN202321578024 U CN 202321578024U CN 220168274 U CN220168274 U CN 220168274U
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- oil pipe
- hydraulic cylinder
- butt joint
- grinding roller
- vertical mill
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- 238000007789 sealing Methods 0.000 title claims abstract description 65
- 210000001503 joint Anatomy 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
A combined sealing device for a vertical mill grinding roller hydraulic cylinder belongs to the technical field of sealing devices. Connecting device one end is provided with threaded connection portion, and the other end is provided with oil pipe butt joint portion, encircles threaded connection portion and is provided with first recess (101), is provided with first O type sealing washer (2) in first recess (101), encircles oil pipe butt joint portion and is provided with second recess (701), is provided with second O type sealing washer (8) in second recess (701), and oil pipe butt joint portion inserts the output of high pressure oil pipe (6), and compressing tightly the output of high pressure oil pipe (6) and compressing tightly at oil pipe butt joint portion outer wall. The combined sealing device for the vertical mill grinding roller hydraulic cylinder facilitates replacement of the first O-shaped sealing ring and the second O-shaped sealing ring, so that oil leakage of the vertical mill grinding roller hydraulic cylinder is thoroughly solved, a sealing gasket is conveniently replaced, and continuous and stable operation of production is ensured.
Description
Technical Field
A combined sealing device for a vertical mill grinding roller hydraulic cylinder belongs to the technical field of sealing devices.
Background
The vertical mill grinding roller hydraulic cylinder used by domestic cement enterprises vibrates in the use process, and when the hydraulic cylinder runs for a long time, an oil return pipeline short joint connected with the hydraulic cylinder is damaged due to vibration, so that oil leakage phenomenon can occur frequently.
The existing combined gasket is poor in sealing effect, oil leakage is easy to repeat, a large amount of labor and time are consumed to clean the oil leakage, and the high-pressure oil pipe is required to be disassembled to replace the short-circuit joint combined gasket, so that the production operation of enterprises is seriously affected.
Disclosure of Invention
The utility model aims to solve the technical problems that: overcomes the defects of the prior art, and provides a combined sealing device of a vertical mill grinding roller hydraulic cylinder, which has good sealing effect and convenient replacement of a sealing ring.
The technical scheme adopted for solving the technical problems is as follows: the combined sealing device for the vertical mill grinding roller hydraulic cylinder is characterized in that: including connecting device and compressing tightly the subassembly, connecting device one end is provided with threaded connection portion, and the other end is provided with oil pipe butt joint portion, encircles threaded connection portion and is provided with first recess, is provided with first O type sealing washer in the first recess, encircles oil pipe butt joint portion and is provided with the second recess, is provided with the second O type sealing washer in the second recess, and oil pipe butt joint portion inserts high-pressure oil pipe's output, compresses tightly the subassembly with high-pressure oil pipe's output at oil pipe butt joint portion outer wall.
Preferably, the connecting device comprises a joint body, a threaded pipe and a connecting pipe, wherein the joint body is a circular pipe, one end of the joint body is in sealing connection with the threaded pipe to form the threaded connection part, and the other end of the joint body is in threaded connection with the connecting pipe to form the oil pipe butt joint part.
Preferably, the first grooves are arranged at intervals along the length direction of the threaded connection part, and each first groove is internally provided with a first O-shaped sealing ring.
Preferably, the second grooves are arranged at intervals along the length direction of the oil pipe butt joint part, and second O-shaped sealing rings are arranged in the second grooves.
Preferably, the compressing assembly comprises a clamping sleeve and a fastener, wherein the clamping sleeve is formed by splicing two clamping sleeves, one ends of the two clamping sleeves are rotatably connected, the other ends of the two clamping sleeves are detachably connected through the fastener, and the two clamping sleeves clamp the high-pressure oil pipe.
Preferably, the fastening clamp comprises a fastening bolt, and the end part of the fastening bolt penetrates through the two clamping sleeves and then is connected with the fastening nut.
Compared with the prior art, the utility model has the beneficial effects that:
the threaded connection part of the combined sealing device of the vertical mill grinding roller hydraulic cylinder is used for being connected with the hydraulic cylinder, the threaded connection part is sealed with the hydraulic cylinder through the first O-shaped sealing ring, the compression assembly compresses the high-pressure oil pipe on the oil pipe butt joint part, so that connection reliability between the high-pressure oil pipe and the oil pipe butt joint part is guaranteed, the high-pressure oil pipe and the oil pipe butt joint part are sealed through the second O-shaped sealing ring, the sealing effect between the high-pressure oil pipe and the oil pipe butt joint part is good, the connecting device is connected with the hydraulic cylinder through the compression assembly, dismounting is convenient, replacement between the high-pressure oil pipe and the oil pipe butt joint part is convenient, replacement between the first O-shaped sealing ring and the second O-shaped sealing ring is convenient, oil leakage of the vertical mill grinding roller hydraulic cylinder is thoroughly solved, the sealing gasket is convenient to replace, and continuous and stable operation of production is guaranteed.
Drawings
Fig. 1 is a schematic diagram of a combined sealing device of a vertical mill grinding roller and a hydraulic cylinder in a front cross-section.
In the figure: 1. screw pipe 101, first recess 2, first O type sealing washer 3, joint body 4, fastener 5, cutting ferrule 6, high-pressure oil pipe 7, connecting pipe 701, second recess 8, second O type sealing washer.
Detailed Description
The present utility model will be further described with reference to specific embodiments, however, it will be appreciated by those skilled in the art that the detailed description herein with reference to the accompanying drawings is for better illustration, and that the utility model is not necessarily limited to such embodiments, but rather is intended to cover various equivalent alternatives or modifications, as may be readily apparent to those skilled in the art.
FIG. 1 is a preferred embodiment of the present utility model, and the present utility model is further described with reference to FIG. 1.
The utility model provides a vertical mill grinding roller pneumatic cylinder combination sealing device, including connecting device and hold-down assembly, connecting device one end is provided with threaded connection portion, and the other end is provided with oil pipe butt joint portion, encircles threaded connection portion and is provided with first recess 101, is provided with first O type sealing washer 2 in the first recess 101, encircles oil pipe butt joint portion and is provided with second recess 701, is provided with second O type sealing washer 8 in the second recess 701, and oil pipe butt joint portion inserts the output of high-pressure oil pipe 6, holds down assembly compresses tightly the output of high-pressure oil pipe 6 at oil pipe butt joint portion outer wall. The threaded connection part of the combined sealing device for the vertical mill grinding roller hydraulic cylinder is used for being connected with the hydraulic cylinder, the threaded connection part is sealed with the hydraulic cylinder through the first O-shaped sealing ring 2, the compression assembly compresses the high-pressure oil pipe 6 on the oil pipe butt joint part, so that the connection reliability between the high-pressure oil pipe 6 and the oil pipe butt joint part is guaranteed, the high-pressure oil pipe 6 and the oil pipe butt joint part are sealed through the second O-shaped sealing ring 8, the sealing effect between the high-pressure oil pipe 6 and the oil pipe butt joint part is good, the connecting device is connected with the hydraulic cylinder through the threaded connection, the disassembly and assembly are convenient, the high-pressure oil pipe 6 and the oil pipe butt joint part are connected through the compression assembly, the disassembly and assembly between the first O-shaped sealing ring 2 and the second O-shaped sealing ring 8 are convenient, the oil leakage of the vertical mill grinding roller hydraulic cylinder is thoroughly solved, the sealing gasket is convenient to replace, and continuous and stable operation of production is guaranteed.
Specific: as shown in fig. 1: the connecting device comprises a connector body 3, a threaded pipe 1 and a connecting pipe 7, wherein the connector body 3 is a circular pipe, the left end of the connector body 3 is coaxially connected with the threaded pipe 1 in a sealing way, the right end of the connector body is connected with the connecting pipe 7 in a sealing way, a threaded connection part is formed at the left end of the connector body 3, an oil pipe butt joint part is formed at the right end of the connector body 3, and the outer diameter of the threaded pipe 1 and the outer diameter of the connecting pipe 7 are smaller than the outer diameter of the connector body 3.
The outer wall surrounding the threaded pipe 1 is provided with a first groove 101, a first O-shaped sealing ring 2 is arranged in the first groove 101, the threaded pipe 1 is in threaded connection with an oil port of the hydraulic cylinder, the threaded pipe 1 is sealed with the oil port of the hydraulic cylinder through the first O-shaped sealing ring 2, the sealing effect is good, and the threaded connection between the threaded pipe 1 and the oil port of the hydraulic cylinder is convenient to disassemble and assemble, so that the replacement of the first O-shaped sealing ring 2 is facilitated.
In order to ensure the sealing effect, a plurality of first grooves 101 are arranged at intervals along the axial direction of the threaded pipe 1, and each first groove 101 is internally provided with a first O-shaped sealing ring 2. In the present embodiment, the first grooves 101 are provided two at intervals in the radial direction of the threaded pipe 1.
The connecting pipe 7 stretches into the output end of the high-pressure oil pipe 6, and the compressing assembly compresses the output end of the high-pressure oil pipe 6 on the outer wall of the connecting pipe 7.
The outer wall surrounding the connecting pipe 7 is provided with a second groove 701, a second O-shaped sealing ring 8 is arranged in the second groove 701, and the second O-shaped sealing ring 8 seals between the connecting pipe 7 and the high-pressure oil pipe 6, so that the sealing effect is good. And because the compression assembly is adopted to realize the connection between the high-pressure oil pipe 6 and the connecting pipe 7, the high-pressure oil pipe 6 and the connecting pipe 7 are convenient to assemble and disassemble, and the second O-shaped sealing ring 8 is convenient to replace.
The compression assembly comprises a clamping sleeve 5 and a fastening piece 4, in the embodiment, the fastening piece 4 comprises a fastening bolt and a fastening nut, the clamping sleeve 5 is provided with two clamping parts arranged on two sides of a high-pressure oil pipe 6, the middle part of each clamping sleeve 5 is provided with a concave compression part, the compression parts of the two clamping sleeves 5 are surrounded to form an annular sleeve on the outer side of the high-pressure oil pipe 6, one ends of the two clamping sleeves 5 are hinged, the end parts of the fastening bolt penetrate through the other ends of the two clamping sleeves 5 and are connected with the fastening nut, the fastening bolt and the fastening nut are matched to compress the clamping sleeve 5, and then an output port of the high-pressure oil pipe 6 is compressed on the outer wall of a connecting pipe 7, so that the connection between the high-pressure oil pipe 6 and the connecting pipe 7 is ensured to be reliable, and the disassembly and the assembly between the high-pressure oil pipe 6 and the connecting pipe 7 are convenient.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims (6)
1. A vertical mill grinding roller hydraulic cylinder combined sealing device is characterized in that: including connecting device and hold-down assembly, connecting device one end is provided with threaded connection portion, and the other end is provided with oil pipe butt joint portion, encircles threaded connection portion and is provided with first recess (101), is provided with first O type sealing washer (2) in first recess (101), encircles oil pipe butt joint portion and is provided with second recess (701), is provided with second O type sealing washer (8) in second recess (701), and oil pipe butt joint portion inserts the output of high-pressure oil pipe (6), and hold-down assembly compresses tightly the output of high-pressure oil pipe (6) at oil pipe butt joint portion outer wall.
2. The vertical mill grinding roller hydraulic cylinder combined sealing device according to claim 1, wherein: the connecting device comprises a connector body (3), a threaded pipe (1) and a connecting pipe (7), wherein the connector body (3) is a circular pipe, one end of the connector body (3) is in sealing connection with the threaded pipe (1) to form a threaded connection part, and the other end of the connector body (3) is in threaded connection with the connecting pipe (7) to form an oil pipe butt joint part.
3. The vertical mill grinding roller hydraulic cylinder combined sealing device according to claim 1, wherein: the first grooves (101) are arranged at intervals along the length direction of the threaded connection part, and each first groove (101) is internally provided with a first O-shaped sealing ring (2).
4. The vertical mill grinding roller hydraulic cylinder combined sealing device according to claim 1, wherein: the second grooves (701) are arranged at intervals along the length direction of the oil pipe butt joint part, and second O-shaped sealing rings (8) are arranged in each second groove (701).
5. The vertical mill grinding roller hydraulic cylinder combined sealing device according to claim 1, wherein: the compression assembly comprises a clamping sleeve (5) and a fastener (4), wherein the clamping sleeve (5) is formed by splicing two clamping sleeves, one ends of the two clamping sleeves (5) are rotatably connected, the other ends of the two clamping sleeves are detachably connected through the fastener (4), and the two clamping sleeves (5) clamp a high-pressure oil pipe (6).
6. The vertical mill grinding roller hydraulic cylinder combined sealing device according to claim 5, wherein: the fastening piece (4) comprises a fastening bolt, and the end part of the fastening bolt penetrates through the two clamping sleeves (5) and then is connected with the fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321578024.6U CN220168274U (en) | 2023-06-20 | 2023-06-20 | Combined sealing device for grinding roller hydraulic cylinder of vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321578024.6U CN220168274U (en) | 2023-06-20 | 2023-06-20 | Combined sealing device for grinding roller hydraulic cylinder of vertical mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168274U true CN220168274U (en) | 2023-12-12 |
Family
ID=89054937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321578024.6U Active CN220168274U (en) | 2023-06-20 | 2023-06-20 | Combined sealing device for grinding roller hydraulic cylinder of vertical mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168274U (en) |
-
2023
- 2023-06-20 CN CN202321578024.6U patent/CN220168274U/en active Active
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