CN215333415U - Dry-type screw rod does not have oily host machine mechanical seal structure - Google Patents
Dry-type screw rod does not have oily host machine mechanical seal structure Download PDFInfo
- Publication number
- CN215333415U CN215333415U CN202120951639.3U CN202120951639U CN215333415U CN 215333415 U CN215333415 U CN 215333415U CN 202120951639 U CN202120951639 U CN 202120951639U CN 215333415 U CN215333415 U CN 215333415U
- Authority
- CN
- China
- Prior art keywords
- sealing
- ring
- seat
- mechanical seal
- shaft sleeve
- 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.)
- Active
Links
Images
Landscapes
- Mechanical Sealing (AREA)
Abstract
The utility model discloses a mechanical sealing structure of a dry-type screw oil-free host, which comprises a screw shaft, wherein the screw shaft is sleeved with a shaft sleeve, and the outer side of the shaft sleeve is provided with a sealing device; a gap is reserved between the shaft sleeve and the sealing device to form a sealing cavity; the sealing device comprises a sealing disc, a sealing ring mounting seat, a sealing ring and a sealing gland; the sealing disc is connected with the sealing ring mounting seat through a first fixing bolt; the sealing ring mounting seat is connected with the sealing ring; the sealing ring is connected with the sealing gland through a second fixing bolt, and the sealing gland is connected with the left side of the shaft sleeve; the right side of the shaft sleeve is connected with a movable ring seat, and the movable ring seat is fixedly connected with the sealing disc through a positioning clamp; according to the utility model, the sealing cavity is arranged, so that lubricating oil flows spirally in the sealing cavity, and is fully contacted with the mechanical seal, the lubricating and cooling effects are achieved, and the sealing effect of the mechanical seal is ensured.
Description
Technical Field
The utility model relates to the technical field of air compressors, in particular to a mechanical sealing structure of a dry-type screw oil-free host.
Background
At present, the mechanical sealing of the screw compressor in the operating state has many problems. In the sealing process, the lubricating part of the transmission case is often separated from the part with impurities under the sealing effect, and the impurities can enter oil liquid and the lubricating part is subjected to accelerated wear due to poor sealing effect; secondly, particles are often generated due to abrasion in the operation process of the lubricating part, and if the lubricating oil does not flow, oil containing more impurities can lubricate the lubricating part again, so that the abrasion speed can be increased; these all seriously influence the effect of mechanical seal, accelerate the wearing speed of equipment, shorten the life of equipment.
Based on the situation, the utility model provides a mechanical sealing structure of a dry-type screw oil-free host machine, which can effectively solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mechanical sealing structure of a dry-type screw oil-free host. The mechanical sealing structure of the dry-type screw oil-free host provided by the utility model is designed in a sectional manner, has a simple structure and is convenient to disassemble and assemble; meanwhile, by arranging the sealing cavity, lubricating oil flows spirally in the sealing cavity, so that the lubricating oil is fully contacted with the mechanical seal, the lubricating and cooling effects are achieved, and the sealing effect of the mechanical seal is also ensured.
The utility model is realized by the following technical scheme:
a dry-type screw rod oilless host mechanical seal structure comprises a screw rod shaft, wherein a shaft sleeve is sleeved on the screw rod shaft, and a seal device is arranged on the outer side of the shaft sleeve; a gap is reserved between the shaft sleeve and the sealing device to form a sealing cavity; the sealing device comprises a sealing disc, a sealing ring mounting seat, a sealing ring and a sealing gland; the sealing disc is connected with the sealing ring mounting seat through a first fixing bolt; the sealing ring mounting seat is connected with the sealing ring; the sealing ring is connected with the sealing gland through a second fixing bolt, and the sealing gland is connected with the left side of the shaft sleeve; the right side of the shaft sleeve is connected with a movable ring seat, and the movable ring seat is fixedly connected with the sealing disc through a positioning clamp; the movable ring seat is provided with a movable ring, and the movable ring is connected with the static ring in a matching way; the static ring is arranged on the static ring seat, and the static ring seat is connected with the sealing disc.
According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, a snap ring is arranged on the right side of the movable ring seat, and the snap ring is clamped in the groove of the shaft sleeve.
According to the above technical solution, as a further preferable technical solution of the above technical solution, an axially disposed spring is installed between the seal disc and the stationary ring seat.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the seal disk is provided with a liquid inlet channel and a liquid outlet channel which penetrate through to the seal cavity.
According to the above technical means, as a further preferable technical means of the above technical means, the seal disc is further provided with a fixing hole.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the seal disc is connected with a collar, and the collar is disposed on an outer side of the seal ring mounting seat.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the positioning clamp is fixedly connected with the movable ring seat through a third fixing bolt.
According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, O-rings are respectively and fixedly connected between the shaft sleeve and the moving ring seat, between the moving ring and the moving ring seat, between the stationary ring and the stationary ring seat, between the stationary ring seat and the sealing disc, between the lantern ring and the sealing ring mounting seat, and between the sealing ring and the sealing gland.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the mechanical sealing structure of the dry-type screw oil-free host provided by the utility model is designed in a sectional manner, has a simple structure and is convenient to disassemble and assemble; meanwhile, by arranging the sealing cavity, lubricating oil flows spirally in the sealing cavity, so that the lubricating oil is fully contacted with the mechanical seal, the lubricating and cooling effects are achieved, and the sealing effect of the mechanical seal is also ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Example 1:
a dry-type screw rod oilless host mechanical seal structure comprises a screw rod shaft 1, wherein a shaft sleeve 2 is sleeved on the screw rod shaft 1, and a seal device is arranged on the outer side of the shaft sleeve 2; a gap is reserved between the shaft sleeve 2 and the sealing device to form a sealing cavity 3; the sealing device comprises a sealing disc 4, a sealing ring mounting seat 5, a sealing ring 6 and a sealing gland 7; the sealing disc 4 is connected with the sealing ring mounting seat 5 through a first fixing bolt 8; the sealing ring mounting seat 5 is connected with the sealing ring 6; the sealing ring 6 is connected with the sealing gland 7 through a second fixing bolt 9, and the sealing gland 7 is connected with the left side of the shaft sleeve 2; the right side of the shaft sleeve 2 is connected with a movable ring seat 10, and the movable ring seat 10 is fixedly connected with the sealing disc 4 through a positioning clamp 11; the movable ring seat 10 is provided with a movable ring 12, and the movable ring 12 is connected with a fixed ring 13 in a matching way; the static ring 13 is arranged on a static ring seat 14, and the static ring seat 14 is connected with the sealing disc 4.
Example 2:
a dry-type screw rod oilless host mechanical seal structure comprises a screw rod shaft 1, wherein a shaft sleeve 2 is sleeved on the screw rod shaft 1, and a seal device is arranged on the outer side of the shaft sleeve 2; a gap is reserved between the shaft sleeve 2 and the sealing device to form a sealing cavity 3; the sealing device comprises a sealing disc 4, a sealing ring mounting seat 5, a sealing ring 6 and a sealing gland 7; the sealing disc 4 is connected with the sealing ring mounting seat 5 through a first fixing bolt 8; the sealing ring mounting seat 5 is connected with the sealing ring 6; the sealing ring 6 is connected with the sealing gland 7 through a second fixing bolt 9, and the sealing gland 7 is connected with the left side of the shaft sleeve 2; the right side of the shaft sleeve 2 is connected with a movable ring seat 10, and the movable ring seat 10 is fixedly connected with the sealing disc 4 through a positioning clamp 11; the movable ring seat 10 is provided with a movable ring 12, and the movable ring 12 is connected with a fixed ring 13 in a matching way; the static ring 13 is arranged on a static ring seat 14, and the static ring seat 14 is connected with the sealing disc 4.
According to the utility model, the sealing cavity 3 is arranged, so that lubricating oil spirally flows in the sealing cavity 3, and is fully contacted with the mechanical seal, the lubricating and cooling effects are achieved, and the sealing effect of the mechanical seal is ensured.
Further, in another embodiment, a snap ring 15 is disposed on the right side of the movable ring seat 10, and the snap ring 15 is snapped in the groove 201 of the shaft sleeve 2.
According to the utility model, the clamping ring 15 is arranged, so that the movable ring seat 10 is prevented from generating axial vibration when the double-screw air compressor operates, and the stability of the sealing structure is improved.
Further, in another embodiment, an axially disposed spring 16 is mounted between the sealing disk 4 and the stationary seat 14.
According to the utility model, the spring 16 is arranged, so that the movable ring 12 moves axially under the thrust of the spring 16, the spring 16 pushes the static ring 14 to apply axially uniform acting force to the movable ring 13, and the sealing effect between the movable ring 12 and the static ring 13 is further ensured.
Further, in another embodiment, the sealing disk 4 is provided with a liquid inlet channel 401 and a liquid outlet channel 402 which penetrate to the sealing cavity 3.
The lubricating medium can conveniently flow into or out of the sealing cavity 3 by arranging the liquid inlet channel 401 and the liquid outlet channel 402.
Further, in another embodiment, the sealing plate 4 is also provided with a fixing hole 403.
The sealing disk 4 of the present invention is provided with a fixing hole 403 for facilitating fixed connection to the casing of the twin-screw air compressor.
Further, in another embodiment, a collar 17 is connected to the sealing disc 4, the collar 17 being disposed outside the sealing ring mounting seat 5.
The dustproof effect is improved by arranging the lantern ring 17.
Further, in another embodiment, the positioning clip 11 is fixedly connected to the movable ring base 10 by a third fixing bolt 18.
The positioning clamp 11 of the utility model is fixedly connected with the movable ring seat 10 through the third fixing bolt 18, so that the connection is more stable and firm.
Further, in another embodiment, O-rings 19 are respectively and fixedly connected between the shaft sleeve 2 and the moving ring seat 10, between the moving ring 12 and the moving ring seat 10, between the stationary ring 13 and the stationary ring seat 14, between the stationary ring seat 14 and the sealing disk 4, between the collar 17 and the sealing ring mounting seat 5, and between the sealing ring 6 and the sealing gland 7.
According to the utility model, the O-shaped ring 19 is arranged, so that the connection of each installation part is more compact, and the sealing effect is further improved.
According to the description and the drawings of the utility model, a dry screw oil-free main machine mechanical sealing structure can be easily manufactured or used by a person skilled in the art, and the positive effects recorded in the utility model can be generated.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (8)
1. The utility model provides a dry-type screw rod does not have oily host computer mechanical seal structure which characterized in that: the screw rod comprises a screw rod shaft (1), wherein a shaft sleeve (2) is sleeved on the screw rod shaft (1), and a sealing device is arranged on the outer side of the shaft sleeve (2); a gap is reserved between the shaft sleeve (2) and the sealing device to form a sealing cavity (3); the sealing device comprises a sealing disc (4), a sealing ring mounting seat (5), a sealing ring (6) and a sealing gland (7); the sealing disc (4) is connected with the sealing ring mounting seat (5) through a first fixing bolt (8); the sealing ring mounting seat (5) is connected with the sealing ring (6); the sealing ring (6) is connected with the sealing gland (7) through a second fixing bolt (9), and the sealing gland (7) is connected with the left side of the shaft sleeve (2); the right side of the shaft sleeve (2) is connected with a movable ring seat (10), and the movable ring seat (10) is fixedly connected with the sealing disc (4) through a positioning clamp (11); the movable ring seat (10) is provided with a movable ring (12), and the movable ring (12) is connected with the static ring (13) in a matching way; the static ring (13) is arranged on a static ring seat (14), and the static ring seat (14) is connected with the sealing disc (4).
2. A mechanical seal structure of a dry screw oil-free host machine according to claim 1, characterized in that: the right side of the movable ring seat (10) is provided with a clamping ring (15), and the clamping ring (15) is clamped in the groove (201) of the shaft sleeve (2).
3. A mechanical seal structure of a dry screw oil-free host machine according to claim 1, characterized in that: and a spring (16) which is axially arranged is arranged between the sealing disc (4) and the static ring seat (14).
4. A mechanical seal structure of a dry screw oil-free host machine according to claim 1, characterized in that: the sealing disc (4) is provided with a liquid inlet channel (401) and a liquid outlet channel (402) which penetrate through the sealing cavity (3).
5. A mechanical seal structure of a dry screw oil-free host machine according to claim 1, characterized in that: the sealing disc (4) is also provided with a fixing hole (403).
6. A mechanical seal structure of a dry screw oil-free host machine according to claim 1, characterized in that: the sealing disc (4) is connected with a lantern ring (17), and the lantern ring (17) is arranged on the outer side of the sealing ring mounting seat (5).
7. A mechanical seal structure of a dry screw oil-free host machine according to claim 1, characterized in that: the positioning clamp (11) is fixedly connected with the movable ring seat (10) through a third fixing bolt (18).
8. A dry-type screw oil-free host machine mechanical seal structure according to claim 6, characterized in that: between axle sleeve (2) and rotating ring seat (10), between rotating ring (12) and rotating ring seat (10), between quiet ring (13) and quiet ring seat (14), between quiet ring seat (14) and sealed dish (4), between lantern ring (17) and sealing ring mount pad (5), between sealing ring (6) and sealing gland (7) respectively fixedly connected with O type circle (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951639.3U CN215333415U (en) | 2021-05-06 | 2021-05-06 | Dry-type screw rod does not have oily host machine mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951639.3U CN215333415U (en) | 2021-05-06 | 2021-05-06 | Dry-type screw rod does not have oily host machine mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215333415U true CN215333415U (en) | 2021-12-28 |
Family
ID=79597622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120951639.3U Active CN215333415U (en) | 2021-05-06 | 2021-05-06 | Dry-type screw rod does not have oily host machine mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215333415U (en) |
-
2021
- 2021-05-06 CN CN202120951639.3U patent/CN215333415U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6208512B1 (en) | Contactless hermetic pump | |
| US11306726B2 (en) | Foil bearing assembly and compressor including same | |
| TW200415841A (en) | Fan motor | |
| CN209340163U (en) | For optimizing the compressor of inner space | |
| CN208996941U (en) | Compressor | |
| CN111486110A (en) | Centrifugal compressor and heat pump system | |
| CN215333415U (en) | Dry-type screw rod does not have oily host machine mechanical seal structure | |
| CN108386370A (en) | A kind of centrifugal compressor | |
| CN109707637B (en) | Small and miniature centrifugal compressor with double-gas suspension support | |
| US6048168A (en) | Lubricated ceramic/hybrid anti-friction bearing centrifugal pump | |
| WO2020134517A1 (en) | Compressor | |
| CN116321959B (en) | Electrical equipment motor controller | |
| CN109899303B (en) | Small and miniature centrifugal compressor without radial bearing | |
| CN201696615U (en) | Reactor seal device | |
| CN111503042A (en) | Centrifugal compressor for hydrogen fuel cell | |
| CN212615552U (en) | Centrifugal compressor for hydrogen fuel cell | |
| CN109707638B (en) | Bearing and sealing integrated small and miniature centrifugal compressor | |
| CN113404706A (en) | Self-cooled air suspension air-blower | |
| CN113864211A (en) | Magnetic suspension pump, refrigeration equipment with same and air conditioner outdoor unit | |
| CN109973657B (en) | Lip type mechanical sealing device | |
| CN220748602U (en) | Air compressor | |
| CN111486109A (en) | Centrifugal compressor and heat pump system | |
| CN109751254B (en) | Vertical small and miniature air suspension centrifugal compressor | |
| CN220687568U (en) | Automobile water pump shell | |
| CN220769708U (en) | Air compressor machine and aircraft nose assembly thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |