CN211039679U - A collection dress formula mechanical seal for motor test - Google Patents
A collection dress formula mechanical seal for motor test Download PDFInfo
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- CN211039679U CN211039679U CN201921806241.XU CN201921806241U CN211039679U CN 211039679 U CN211039679 U CN 211039679U CN 201921806241 U CN201921806241 U CN 201921806241U CN 211039679 U CN211039679 U CN 211039679U
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- ring
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- rotating shaft
- ring seat
- sealing
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Abstract
The utility model provides a container type mechanical seal for motor test, belonging to the sealing element technical field, comprising a rotating shaft; the sealing disc is sleeved outside the rotating shaft and fixedly installed; the static sealing component is sleeved outside the rotating shaft and embedded into the sealing disc, and an axially arranged spring is arranged between the static sealing component and the sealing disc; the dynamic sealing assembly comprises a dynamic ring seat and a dynamic ring which are sleeved outside the rotating shaft, one end of the dynamic ring is abutted against the static sealing assembly, the other end of the dynamic ring is embedded into the dynamic ring seat, and the inner wall of the dynamic ring seat is abutted against the rotating shaft; and the transmission fastening ring is sleeved outside the movable ring seat, the transmission fastening ring fixes the movable ring seat and the rotating shaft through a fastening screw, and the fastening screw is radially inserted into the transmission fastening ring and penetrates through the movable ring seat. The utility model has the advantages of be applicable to high rotational speed motor test and long service life.
Description
Technical Field
The utility model belongs to the technical field of the sealing member, a collection dress formula mechanical seal for motor test is related to.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, keeping fit and sliding relatively under the action of fluid pressure and the elasticity (or magnetic force) of a compensation mechanism and the cooperation of auxiliary seal, and is a shaft seal device of rotary machinery.
For example, a chinese patent application No. 201620714393.7 discloses a single face cartridge mechanical seal, which includes a shaft; the transmission sleeve is sleeved on the rotating shaft; the fastening ring is arranged on the rotating shaft, a plurality of positioning holes are formed in the fastening ring, connecting pins are arranged in the positioning holes, the connecting pins penetrate through the fastening ring and are inserted into the transmission sleeve, and fastening screws are arranged on the fastening ring; the sealing disc is arranged on the transmission sleeve, and a static ring is clamped on the sealing disc; the movable ring seat is arranged on the transmission sleeve and is connected with the transmission sleeve, a movable ring is clamped on the movable ring seat, one end of the movable ring is attached to the static ring, and the movable ring can rotate circumferentially relative to the static ring; the rotating shaft can drive the movable ring seat to rotate circumferentially through the transmission sleeve and can drive the movable ring to rotate circumferentially relative to the stationary ring.
In the motor testing process, the rotating speed change range of the motor is large, particularly, the existing mechanical seal is easy to wear at high rotating speed, and the replacement of the mechanical seal affects the testing result, so that the improvement space exists.
Disclosure of Invention
The utility model aims at having above-mentioned problem to current technique, provided a collection dress formula mechanical seal suitable for high rotational speed motor test and long service life.
The purpose of the utility model can be realized by the following technical proposal: a cartridge-type mechanical seal comprising:
a rotating shaft;
the sealing disc is sleeved outside the rotating shaft and fixedly installed;
the static sealing component is sleeved outside the rotating shaft and embedded into the sealing disc, and an axially arranged spring is arranged between the static sealing component and the sealing disc;
the dynamic sealing assembly comprises a dynamic ring seat and a dynamic ring which are sleeved outside the rotating shaft, one end of the dynamic ring is abutted against the static sealing assembly, the other end of the dynamic ring is embedded into the dynamic ring seat, and the inner wall of the dynamic ring seat is abutted against the rotating shaft;
and the transmission fastening ring is sleeved outside the movable ring seat, the transmission fastening ring fixes the movable ring seat and the rotating shaft through a fastening screw, and the fastening screw is radially inserted into the transmission fastening ring and penetrates through the movable ring seat.
As a further improvement, the one end of the movable ring seat is provided with an installation step, the transmission tight ring is sleeved in the installation step, and the installation step is abutted against the rotating shaft.
As a further improvement, the static seal assembly comprises a static ring seat and a static ring which are sleeved outside the rotating shaft, the spring is arranged between the static ring seat and the sealing disc, and the static ring is embedded into the static ring seat to be away from one side of the spring and abut against the static ring.
As a further improvement of the utility model, the movable ring and the static ring are respectively relatively protruded to form a movable abutting part and a static abutting part which are mutually abutted, and the width of the cross section of one of the movable abutting part and the static abutting part is narrower than that of the other.
As a further improvement of the utility model, still be equipped with quiet sealing washer between the static ring seat sealed dish.
As a further improvement of the utility model, a movable sealing ring is arranged between the movable ring and the movable ring seat.
As the utility model discloses a further improvement still includes the locating piece, and locating piece one end links to each other with sealed dish, and the other end links firmly with the tight circle of transmission through mounting screw, and mounting screw radially passes the locating piece and inserts the tight circle of transmission.
As a further improvement, the positioning block one end outer convex is formed with the positioning protrusion, the sealing disc indent is formed with the positioning groove for the embedding of the positioning protrusion.
As a further improvement, the sealing disc and the stationary ring seat are axially inserted with a pin shaft which limits the circumferential rotation of the stationary ring seat.
Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:
1. this mechanical seal is collection dress formula structure, the quick installation when being convenient for the motor test, and overall structure compact structure, the cooperation is inseparable between quiet seal assembly and the dynamic seal subassembly, and is fixed firm, can adapt to the high rotational speed test of motor, and in addition, the dynamic ring seat has still played driven effect simultaneously, compares with ordinary mechanical seal owing to reduced the transmission cover, and inertia is littleer, and the wear is littleer during the use, and the life-span is longer.
2. The movable ring seat is provided with an installation step for the transmission tight ring to be sleeved in, so that the transmission tight ring can be conveniently positioned and installed, the installation step is more easily abutted against the rotating shaft, and the movable ring seat is more firmly fixed with the rotating shaft.
3. Because the movable abutting part is matched with the narrow surface of the static abutting part, the movable abutting part and the static abutting part can form concave-convex matching even if the movable abutting part and the static abutting part are worn, and the sealing effect is ensured for a long time.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure, 100, the rotation axis; 200. sealing the disc; 210. a positioning groove; 300. a static seal assembly; 310. a stationary ring seat; 320. a stationary ring; 321. a static abutment; 330. a static seal ring; 400. a spring; 500. a dynamic seal assembly; 510. a movable ring seat; 511. mounting a step; 520. a moving ring; 521. a movable abutting part; 600. a transmission tight ring; 610. tightening the screw; 700. positioning blocks; 710. positioning the projection; 720. mounting screws; 800. and (7) a pin shaft.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 2, the present cartridge mechanical seal for testing a motor includes:
a rotating shaft 100;
a sealing disc 200 which is sleeved outside the rotating shaft 100 and fixedly installed;
the static seal assembly 300 is sleeved outside the rotating shaft 100 and embedded into the seal disc 200, and an axially arranged spring 400 is arranged between the static seal assembly 300 and the seal disc 200;
the dynamic seal assembly 500 comprises a dynamic ring seat 510 and a dynamic ring 520 sleeved outside the rotating shaft 100, wherein one end of the dynamic ring 520 is abutted against the static seal assembly 300, the other end of the dynamic ring 520 is embedded into the dynamic ring seat 510, and the inner wall of the dynamic ring seat 510 is abutted against the rotating shaft 100;
the driving clamping ring 600 is sleeved outside the moving ring base 510, the driving clamping ring 600 fixes the moving ring base 510 and the rotating shaft 100 through a set screw 610, and the set screw 610 is radially inserted into the driving clamping ring 600 and passes through the moving ring base 510.
This mechanical seal is collection dress formula structure, the quick installation when being convenient for the motor test, and overall structure compact structure, the cooperation is inseparable between quiet seal assembly 300 and the dynamic seal subassembly 500, and is fixed firm, can adapt to the high rotational speed test of motor, and in addition, the dynamic ring seat 510 has still played driven effect simultaneously, compares with ordinary mechanical seal owing to reduced the transmission cover, and inertia is littleer, and the wear is littleer during the use, and the life-span is longer.
In order to ensure the installation accuracy of the driving grip 600, one end of the movable ring base 510 is provided with an installation step 511, the driving grip 600 is sleeved into the installation step 511, and the installation step 511 is abutted against the rotating shaft 100.
The movable ring seat 510 is provided with an installation step 511 for the driving clamping ring 600 to be sleeved in, so as to facilitate the positioning and installation of the driving clamping ring 600, and the installation step 511 is thinner, so that the elastic deformation is easier to occur to tightly support the rotating shaft 100, and the movable ring seat is more firmly fixed with the rotating shaft 100.
The static seal assembly 300 specifically includes a static ring seat 310 and a static ring 320 sleeved outside the rotating shaft 100, the spring 400 is disposed between the static ring seat 310 and the sealing disc 200, and the static ring 320 is embedded in a side of the static ring seat 310 away from the spring 400 and abuts against the static ring 320.
In order to prolong the service life of the mechanical seal, the movable ring 520 and the static ring 320 are respectively provided with a movable contact part 521 and a static contact part 321 which are mutually abutted in a relatively protruding way, and the cross section width of one of the movable contact part 521 and the static contact part 321 is narrower than that of the other. The movable contact portion 521 is engaged with the narrow surface of the stationary contact portion 321, so that the movable contact portion and the stationary contact portion can be engaged with each other in a concave-convex manner even if the movable contact portion and the stationary contact portion are worn, and a sealing effect can be ensured for a long time.
In order to further ensure the sealing effect, a static sealing ring 330 is further arranged between the sealing discs 200 of the static ring seat 310, and a dynamic sealing ring is arranged between the dynamic ring 520 and the dynamic ring seat 510.
In order to control the pretightening force between the moving ring 520 and the stationary ring 320 within a standard range, the device further comprises a positioning block 700, one end of the positioning block 700 is connected with the sealing disc 200, the other end of the positioning block 700 is fixedly connected with the driving clamping ring 600 through a mounting screw 720, and the mounting screw 720 radially penetrates through the positioning block 700 and is inserted into the driving clamping ring 600.
When the mechanical seal is installed, the positioning block 700 is used for positioning the installation distance between the sealing disc 200 and the driving clamping ring 600 so as to control the compression range of the spring 400, and the positioning block 700 is removed when the mechanical seal is used.
Preferably, one end of the positioning block 700 is convexly formed with a positioning protrusion 710, and the sealing disc 200 is concavely formed with a positioning groove 210 for the positioning protrusion 710 to be inserted into. Through setting up location arch 710, positioning groove 210, can make things convenient for installer dismouting locating piece 700.
The pin shaft 800 is axially inserted between the sealing disc 200 and the stationary ring seat 310, and the pin shaft 800 limits the circumferential rotation of the stationary ring seat 310, so that the unreliable installation caused by the position deviation of the spring 400 is avoided.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A cartridge-type mechanical seal for testing an electric motor, comprising:
a rotating shaft;
the sealing disc is sleeved outside the rotating shaft and fixedly installed;
the static sealing component is sleeved outside the rotating shaft and embedded into the sealing disc, and an axially arranged spring is arranged between the static sealing component and the sealing disc;
the dynamic sealing assembly comprises a dynamic ring seat and a dynamic ring which are sleeved outside the rotating shaft, one end of the dynamic ring is abutted against the static sealing assembly, the other end of the dynamic ring is embedded into the dynamic ring seat, and the inner wall of the dynamic ring seat is abutted against the rotating shaft;
and the transmission fastening ring is sleeved outside the movable ring seat, the transmission fastening ring fixes the movable ring seat and the rotating shaft through a fastening screw, and the fastening screw is radially inserted into the transmission fastening ring and penetrates through the movable ring seat.
2. The cartridge-type mechanical seal for testing of an electric motor according to claim 1, wherein: and one end of the movable ring seat is provided with a mounting step, the transmission fastening ring is sleeved in the mounting step, and the mounting step is abutted against the rotating shaft.
3. The cartridge-type mechanical seal for testing of an electric motor according to claim 1, wherein: the static sealing assembly comprises a static ring seat and a static ring which are sleeved outside the rotating shaft, the spring is arranged between the static ring seat and the sealing disc, and the static ring is embedded into the static ring seat, is far away from one side of the spring and is abutted against the static ring.
4. The integrated mechanical seal for testing the motor according to claim 3, wherein: the movable ring and the static ring are respectively provided with a movable abutting part and a static abutting part which are abutted against each other relative to the bulges, and the width of the cross section of one of the movable abutting part and the static abutting part is narrower than that of the other movable abutting part and the static abutting part.
5. The integrated mechanical seal for motor testing according to claim 4, wherein: and a static sealing ring is also arranged between the sealing discs of the static ring seat.
6. The cartridge-type mechanical seal for testing of an electric motor according to claim 1, wherein: and a movable sealing ring is arranged between the movable ring and the movable ring seat.
7. The integrated mechanical seal for motor testing according to claim 2, wherein: the sealing device is characterized by further comprising a positioning block, one end of the positioning block is connected with the sealing disc, the other end of the positioning block is fixedly connected with the transmission tight ring through a mounting screw, and the mounting screw radially penetrates through the positioning block and is inserted into the transmission tight ring.
8. The integrated mechanical seal for testing the motor according to claim 7, wherein: the locating piece one end evagination is formed with the location arch, the sealed dish indent is formed with the positioning groove who supplies the protruding embedding of location.
9. The integrated mechanical seal for testing the motor according to claim 3, wherein: and a pin shaft is axially inserted between the sealing disc and the static ring seat and limits the circumferential rotation of the static ring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806241.XU CN211039679U (en) | 2019-10-25 | 2019-10-25 | A collection dress formula mechanical seal for motor test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806241.XU CN211039679U (en) | 2019-10-25 | 2019-10-25 | A collection dress formula mechanical seal for motor test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039679U true CN211039679U (en) | 2020-07-17 |
Family
ID=71532946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921806241.XU Active CN211039679U (en) | 2019-10-25 | 2019-10-25 | A collection dress formula mechanical seal for motor test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039679U (en) |
-
2019
- 2019-10-25 CN CN201921806241.XU patent/CN211039679U/en active Active
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