CN210290247U - Mechanical sealing device for water pump of diesel engine - Google Patents
Mechanical sealing device for water pump of diesel engine Download PDFInfo
- Publication number
- CN210290247U CN210290247U CN201921472791.2U CN201921472791U CN210290247U CN 210290247 U CN210290247 U CN 210290247U CN 201921472791 U CN201921472791 U CN 201921472791U CN 210290247 U CN210290247 U CN 210290247U
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- Prior art keywords
- sealing ring
- sealing
- transmission shaft
- limiting sleeve
- spring
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Abstract
The utility model discloses a mechanical sealing device for a water pump of a diesel engine, which comprises a pump shell, a sealing gasket, a fixing screw, a fixing sleeve body, a first limit sleeve, a first sealing ring, a first spring, a first fixing pin, a locking screw, a first sealing ring, a conical surface, a jacking spring, a second sealing ring, a second fixing pin, a second spring, a second sealing ring, a second limit sleeve and a transmission shaft; the utility model has the advantages of reasonable and simple structure, the first spring arranged here can ensure that the left side surface of the first sealing ring is tightly attached to the right side surface of the first limiting sleeve during long-time use, and the second spring arranged here can ensure that the right side surface of the second sealing ring is tightly attached to the left side surface of the second limiting sleeve during long-time use, thereby ensuring the long-time sealing effect; the tight spring in top that sets up in the utility model can make sealing washer one and sealing washer two outside remove the tight conical surface that corresponds in top to sealing washer one and sealing washer two can paste tight transmission shaft disc more when having guaranteed the long time use, just also improved sealed effect.
Description
The technical field is as follows:
the utility model relates to a diesel engine water pump seals technical field, in particular to diesel engine water pump mechanical seal device.
Background art:
the water pump machine makes an indispensable part of a diesel engine in the using process, mainly provides a cooling effect for the diesel engine, the water pump seal of the general diesel engine mostly adopts a shaft seal mode, the shaft seal of the existing water pump of the diesel engine mostly adopts a mechanical sealing device which is formed by pairing graphite-rubber and graphite-metal, and a graphite water seal which is easy to wear is arranged on a water pump body as a static ring; the mechanical sealing device with the structure has the advantages of poor sealing effect, short service life, frequent replacement, and particularly inconvenient replacement, maintenance and disassembly, and influences the use efficiency of the whole diesel engine.
The utility model has the following contents:
the utility model aims at providing a diesel engine water pump mechanical seal device just in order to solve above-mentioned problem, solved the problem among the background art.
In order to solve the above problem, the utility model provides a technical scheme: the utility model provides a diesel engine water pump mechanical seal device, includes the pump casing, its innovation point lies in: the sealing device also comprises a sealing gasket, a fixing screw, a fixing sleeve body, a first limiting sleeve, a first sealing ring, a first spring, a first fixing pin, a locking screw, a first sealing ring, a conical surface, a jacking spring, a second sealing ring, a second fixing pin, a second spring, a second sealing ring, a second limiting sleeve and a transmission shaft; the fixed sleeve body is fixedly connected in the pump shell through a plurality of fixing screws, a sealing gasket is arranged between the step surface on the left side of the fixed sleeve body and the left side of the pump shell, and conical surfaces are arranged on the left side and the right side of the inner part of the center of the fixed sleeve body; the transmission shaft is movably connected inside the fixed sleeve body, the left side of the transmission shaft is fixedly connected with a first limiting sleeve through a locking screw, and the right side of the transmission shaft is fixedly connected with a second limiting sleeve through a locking screw; the first sealing ring is transversely and movably connected in the opening at the left side of the fixed sleeve body, and the left side surface of the first sealing ring is connected with the left side surface of the first limiting sleeve; the left side of the first fixing pin is respectively positioned in a blind hole at the right side of the sealing ring, and a first spring is arranged between the left end of the first fixing pin and the blind hole at the right side of the sealing ring; the sealing ring is positioned on the left side of the center inside the limiting sleeve, the inner side surface of the sealing ring is connected with the outer circular surface of the transmission shaft, and the outer side surface of the sealing ring is connected with the corresponding conical surface; the two sealing rings are positioned on the right side of the center inside the first limiting sleeve, the inner side surfaces of the two sealing rings are connected with the outer circular surface of the transmission shaft, the outer side surfaces of the two sealing rings are connected with corresponding conical surfaces, and a plurality of jacking springs are arranged between the left sides of the two sealing rings and the right sides of the first sealing rings; the right side surface of the second sealing ring is connected with the left side surface of the second limiting sleeve; the second fixing pin is a plurality, the left sides of the second fixing pins are fixedly connected to the right opening of the fixed sleeve body respectively, the right sides of the second fixing pins are located in blind holes corresponding to the left sides of the second sealing rings respectively, and springs are arranged between the right ends of the second fixing pins and the blind holes corresponding to the left sides of the second sealing rings.
Preferably, a sealant is arranged between an inner hole of the limiting sleeve and the outer circular surface of the transmission shaft.
Preferably, a sealant is arranged between the inner hole of the second limiting sleeve and the outer circular surface of the transmission shaft.
Preferably, the first sealing ring and the second sealing ring are both made of graphite materials.
Preferably, the first sealing ring and the second sealing ring are both made of rubber materials.
The utility model has the advantages that:
(1) the utility model has the advantages of reasonable and simple structure, low in production cost, simple to operate, it is multiple functional, the spring that sets up here is one, can ensure that a sealing ring left surface pastes tightly in a stop collar right flank when using for a long time, and the spring two that set up then can ensure that two right flanks of sealing ring paste tightly in two left flanks of stop collar when using for a long time to ensure long-time sealed effect.
(2) The utility model discloses in the stop collar one and the stop collar two that set up, can avoid the transmission shaft to produce the axial float to sealed effect has been improved.
(3) The tight spring in top that sets up in the utility model can make sealing washer one and sealing washer two outside remove the tight conical surface that corresponds in top to sealing washer one and sealing washer two can paste tight transmission shaft disc more when having guaranteed the long time use, just also improved sealed effect.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial enlarged view of the present invention.
1-pump housing; 2-a sealing gasket; 3-fixing screws; 4-fixing the sleeve body; 5-a first limiting sleeve; 6, sealing a ring I; 7-a first spring; 8, fixing a pin I; 9-locking screw; 10-a first sealing ring; 11-a conical surface; 12-a top tightening spring; 13-sealing ring II; 14-fixing pin two; 15-spring two; 16-a second sealing ring; 17-a second limiting sleeve; 18-a transmission shaft.
The specific implementation mode is as follows:
as shown in fig. 1 and fig. 2, the following technical solutions are adopted in the present embodiment: a mechanical sealing device for a water pump of a diesel engine comprises a pump shell 1, a sealing gasket 2, a fixing screw 3, a fixing sleeve body 4, a limiting sleeve I5, a sealing ring I6, a spring I7, a fixing pin I8, a locking screw 9, a sealing ring I10, a conical surface 11, a jacking spring 12, a sealing ring II 13, a fixing pin II 14, a spring II 15, a sealing ring II 16, a limiting sleeve II 17 and a transmission shaft 18; the fixed sleeve body 4 is fixedly connected in the pump shell 1 through a plurality of fixing screws 3, a sealing gasket 2 is arranged between the step surface on the left side of the fixed sleeve body 4 and the left side of the pump shell 1, and conical surfaces 11 are arranged on the left side and the right side of the inner part of the center of the fixed sleeve body 4; the transmission shaft 18 is movably connected inside the fixed sleeve body 4, the left side of the transmission shaft 18 is fixedly connected with a first limiting sleeve 5 through a locking screw 9, and the right side of the transmission shaft 18 is fixedly connected with a second limiting sleeve 17 through the locking screw 9; the first sealing ring 6 is transversely and movably connected in the opening at the left side of the fixed sleeve body 4, and the left side surface of the first sealing ring 6 is connected with the left side surface of the first limiting sleeve 5; the right sides of the first fixing pins 8 are fixedly connected to the left opening of the fixed sleeve body 4 respectively, the left sides of the first fixing pins 8 are located in the right blind holes of the first sealing ring 6 respectively, and springs 7 are arranged between the left ends of the first fixing pins 8 and the right blind holes of the first sealing ring 6 respectively; the first sealing ring 10 is positioned on the left side of the center inside the first limiting sleeve 5, the inner side surface of the first sealing ring 10 is connected with the outer circular surface of the transmission shaft 18, and the outer side surface of the first sealing ring 10 is connected with the corresponding conical surface 11; the second sealing ring 13 is positioned on the right side of the center in the first limiting sleeve 5, the inner side surface of the second sealing ring 13 is connected with the outer circular surface of the transmission shaft 18, the outer side surface of the second sealing ring 13 is connected with the corresponding conical surface 11, and a plurality of jacking springs 12 are arranged between the left side of the second sealing ring 13 and the right side of the first sealing ring 10; the second sealing ring 16 is transversely and movably connected in the opening at the right side of the fixed sleeve body 4, and the right side surface of the second sealing ring 16 is connected with the left side surface of the second limiting sleeve 17; the second fixing pin 14 is a plurality of fixing pins, the left sides of the second fixing pin 14 are fixedly connected to the right side opening of the fixed sleeve body 4 respectively, the right sides of the second fixing pin 14 are located in blind holes corresponding to the left sides of the second sealing ring 16 respectively, and a second spring 15 is arranged between the right end of the second fixing pin 14 and the blind hole corresponding to the left side of the second sealing ring 16.
A sealant is arranged between the inner hole of the first limiting sleeve 5 and the outer circular surface of the transmission shaft 18; a sealant is arranged between the inner hole of the second limiting sleeve 17 and the outer circular surface of the transmission shaft 18; the first sealing ring 6 and the second sealing ring 16 are both made of graphite materials; the first sealing ring 10 and the second sealing ring 13 are both made of rubber materials.
The utility model discloses a user state does: the utility model has the advantages of reasonable and simple structure, low in production cost, high durability and convenient installation, it is multiple functional, spring 7 that sets up here, 6 left surfaces of sealing ring paste tightly in 5 right flanks of stop collar when can guaranteeing long-term use, and spring two 15 of setting, then can guarantee that two 16 right flanks of sealing ring paste tightly in two 17 left flanks of stop collar when long-term use, thereby guarantee long-term sealed effect, the stop collar 5 and the stop collar two 17 that set up in addition, can avoid transmission shaft 18 to produce the axial float, thereby sealed effect has been improved, the tight spring 12 in top that sets up in addition, can make sealing washer one 10 and sealing washer two 13 remove the tight conical surface 11 that corresponds in top to the outside, thereby sealing washer one 10 and sealing washer two 13 can paste tight transmission shaft 18 outer disc more when having guaranteed long-term use, sealed effect has just also been improved.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.
Claims (5)
1. A diesel engine water pump mechanical seal device, includes pump casing (1), its characterized in that: the sealing device is characterized by also comprising a sealing gasket (2), a fixing screw (3), a fixing sleeve body (4), a limiting sleeve I (5), a sealing ring I (6), a spring I (7), a fixing pin I (8), a locking screw (9), a sealing ring I (10), a conical surface (11), a jacking spring (12), a sealing ring II (13), a fixing pin II (14), a spring II (15), a sealing ring II (16), a limiting sleeve II (17) and a transmission shaft (18);
the fixed sleeve body (4) is fixedly connected in the pump shell (1) through a plurality of fixing screws (3), a sealing gasket (2) is arranged between the step surface on the left side of the fixed sleeve body (4) and the left side of the pump shell (1), and conical surfaces (11) are arranged on the left side and the right side of the inner center of the fixed sleeve body (4);
the transmission shaft (18) is movably connected inside the fixed sleeve body (4), the left side of the transmission shaft (18) is fixedly connected with a first limiting sleeve (5) through a locking screw (9), and the right side of the transmission shaft (18) is fixedly connected with a second limiting sleeve (17) through the locking screw (9);
the first sealing ring (6) is transversely and movably connected in the opening at the left side of the fixed sleeve body (4), and the left side surface of the first sealing ring (6) is connected with the left side surface of the first limiting sleeve (5);
the number of the first fixing pins (8) is multiple, the right sides of the first fixing pins (8) are respectively and fixedly connected to the left opening of the fixed sleeve body (4), the left sides of the first fixing pins (8) are respectively positioned in the right blind holes of the first sealing ring (6), and springs (7) are respectively arranged between the left ends of the first fixing pins (8) and the right blind holes of the first sealing ring (6);
the first sealing ring (10) is positioned on the left side of the center inside the first limiting sleeve (5), the inner side surface of the first sealing ring (10) is connected with the outer circular surface of the transmission shaft (18), and the outer side surface of the first sealing ring (10) is connected with the corresponding conical surface (11);
the second sealing ring (13) is positioned on the right side of the center in the first limiting sleeve (5), the inner side surface of the second sealing ring (13) is connected with the outer circular surface of the transmission shaft (18), the outer side surface of the second sealing ring (13) is connected with the corresponding conical surface (11), and a plurality of jacking springs (12) are arranged between the left side of the second sealing ring (13) and the right side of the first sealing ring (10);
the second sealing ring (16) is transversely and movably connected in the opening at the right side of the fixed sleeve body (4), and the right side surface of the second sealing ring (16) is connected with the left side surface of the second limiting sleeve (17);
the second fixing pin (14) is a plurality, the left side of the second fixing pin (14) is fixedly connected to the right opening of the fixed sleeve body (4), the right side of the second fixing pin (14) is located in a blind hole corresponding to the left side of the second sealing ring (16), and a second spring (15) is arranged between the right end of the second fixing pin (14) and the blind hole corresponding to the left side of the second sealing ring (16).
2. The mechanical seal device for the water pump of the diesel engine according to claim 1, characterized in that: and a sealant is arranged between the inner hole of the first limiting sleeve (5) and the outer circular surface of the transmission shaft (18).
3. The mechanical seal device for the water pump of the diesel engine according to claim 1, characterized in that: and a sealant is arranged between the inner hole of the second limiting sleeve (17) and the outer circular surface of the transmission shaft (18).
4. The mechanical seal device for the water pump of the diesel engine according to claim 1, characterized in that: the first sealing ring (6) and the second sealing ring (16) are both made of graphite materials.
5. The mechanical seal device for the water pump of the diesel engine according to claim 1, characterized in that: the first sealing ring (10) and the second sealing ring (13) are both made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921472791.2U CN210290247U (en) | 2019-09-05 | 2019-09-05 | Mechanical sealing device for water pump of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921472791.2U CN210290247U (en) | 2019-09-05 | 2019-09-05 | Mechanical sealing device for water pump of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290247U true CN210290247U (en) | 2020-04-10 |
Family
ID=70064214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921472791.2U Expired - Fee Related CN210290247U (en) | 2019-09-05 | 2019-09-05 | Mechanical sealing device for water pump of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290247U (en) |
-
2019
- 2019-09-05 CN CN201921472791.2U patent/CN210290247U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |