CN210129789U - Rotary sealing element protection structure - Google Patents
Rotary sealing element protection structure Download PDFInfo
- Publication number
- CN210129789U CN210129789U CN201921419317.3U CN201921419317U CN210129789U CN 210129789 U CN210129789 U CN 210129789U CN 201921419317 U CN201921419317 U CN 201921419317U CN 210129789 U CN210129789 U CN 210129789U
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- Prior art keywords
- rotary seal
- pivot
- cover plate
- cover
- end opening
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- 238000007789 sealing Methods 0.000 title description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Abstract
The utility model discloses a rotary seal spare protective structure, including motor body, pivot and rotary seal spare, still including locating the end cover in the motor body outside, the end cover is equipped with the confession the end opening that the pivot was worn out, rotary seal spare is installed just encircle in the end opening the pivot, the end opening outside be equipped with the bottom with the apron of the shaft shoulder cooperation location of pivot, the apron encircles the cover the end opening. Above-mentioned rotary seal spare protective structure keeps apart rotary seal spare and external world through the apron that sets up to have the guard action, has avoided the direct contact with muddy water mixture, has prolonged rotary seal spare's life.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to rotary seal spare protective structure.
Background
The rotary sealing element is a key part for preventing foreign objects from invading at the rotating shaft end of the new energy automobile motor. Because the driving motor of new energy automobile uses the operating mode complicacy, and the environment is abominable compared with traditional industrial motor, and rotary seal faces more serious examination. The rotary seal is directly exposed to the external environment, and the effective service life of the rotary seal is influenced by the examination of muddy water mixture and high-temperature environment.
The rotary sealing element belongs to a precise part, the invasion and the exposure of foreign objects can cause serious influence on a lip of the rotary sealing element in a high-temperature environment, and the service life of the rotary sealing element is shortened, so that the protection performance of a motor is influenced. In order to improve the protection performance of the motor, the following solutions are generally adopted for the rotary sealing element of the motor: the material with better wear resistance is adopted; a double-lip or multi-lip structure is adopted; other structural optimization schemes are adopted. All three solutions belong to passive defense solutions and can increase the cost of parts.
Therefore, a need exists in the art for a rotary seal protection structure that actively provides protection, physically isolates the rotary seal from the environment, prevents direct contact with the slurry mixture, and extends the useful life of the rotary seal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotary seal spare protective structure, the apron that has the guard action through the setting is kept apart rotary seal spare and external world, has avoided the direct contact with muddy water mixture, has prolonged rotary seal spare's life.
In order to realize the above object, the utility model provides a rotary sealing element protective structure, including motor body, pivot and rotary sealing element, still including locating the end cover in the motor body outside, the end cover is equipped with the confession the end opening that the pivot was worn out, rotary sealing element installs in the end opening and encircle the pivot, the end opening outside be equipped with the bottom with the apron of the shaft shoulder cooperation location of pivot, the apron encircles the cover the end opening.
Preferably, the pressing plate is in interference fit with the rotating shaft, and the pressing plate presses the cover plate to achieve tight fit of the bottom of the cover plate and the rotating shaft.
Preferably, the inner diameter of the cover plate and the rotating shaft are in transition or interference fit so as to realize synchronous rotation of the cover plate and the rotating shaft.
Preferably, an elastic part is arranged between the pressing plate and the cover plate.
Preferably, the elastic member is a wave spring.
Preferably, the cover plate is an L-shaped plate with a radial dimension larger than the end hole.
Preferably, the edge of the cover plate is provided with a bending body inserted into the groove of the end cover.
Preferably, a cavity for installing the rotary sealing element is arranged between the end cover and the rotating shaft, and the groove is located on the peripheral side of the cavity.
Compared with the prior art, the utility model provides a rotary seal spare protective structure includes motor body, pivot and rotary seal spare, still including the end cover of locating the motor body outside, the end cover is equipped with the end opening, the pivot is worn out in by the end opening, rotary seal spare is installed in the end opening and is encircleed the pivot, the end opening outside is equipped with the apron, the bottom of apron and the shaft shoulder cooperation location of pivot, the apron encircles the week side that covers the end opening, this rotary seal spare protective structure passes through the end cover in order to realize motor body, the setting of pivot and rotary seal spare, realize rotary seal spare's protection through the apron, keep apart rotary seal spare and external physics, the rotary seal spare of initiative protection, avoid with the life of muddy water mixture direct contact in order to prolong rotary seal spare.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a protective structure of a rotary seal according to an embodiment of the present invention;
FIG. 2 is an enlarged, fragmentary view of the rotary seal containment structure of FIG. 1;
FIG. 3 is a schematic view of the platen of FIG. 2;
FIG. 4 is a schematic structural view of the wave spring of FIG. 2;
FIG. 5 is a schematic structural view of the cover plate of FIG. 2;
fig. 6 is a schematic view of the rotary seal of fig. 2.
Wherein:
1-motor body, 2-end cover, 3-pressure plate, 4-wave spring, 5-cover plate, 6-rotary sealing element.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 6, wherein fig. 1 is a schematic structural diagram of a protective structure of a rotary sealing element according to an embodiment of the present invention, fig. 2 is a partially enlarged schematic view of the protective structure of the rotary sealing element in fig. 1, fig. 3 is a schematic structural diagram of a pressing plate in fig. 2, fig. 4 is a schematic structural diagram of a wave spring in fig. 2, fig. 5 is a schematic structural diagram of a cover plate in fig. 2, and fig. 6 is a schematic structural diagram of the rotary sealing element in fig. 2.
In specific embodiment, the utility model provides a rotatory sealing member protective structure includes motor body 1, pivot and rotatory sealing member 6, still including the end cover 2 of locating the 1 outside of motor body, end cover 2 is equipped with the end hole, and the pivot is worn out in by the end hole, and rotatory sealing member 6 is installed in the end hole and cup joints in the pivot, and the end hole outside is equipped with apron 5, and the bottom of apron 5 is fixed a position with the shaft shoulder cooperation of pivot, and apron 5 encircles the week side that covers the end hole.
Aiming at the problems that the rotary sealing element 6 in the prior art is always directly exposed in the external environment and is easily influenced by factors such as corrosion of a mud-water mixture and the like, the service life is shortened; therefore, in the present embodiment, the end cap 2 and the cover plate 5 are arranged to actively protect the rotary sealing element 6, so that the rotary sealing element 6 is physically isolated from the outside, and is prevented from directly contacting with mud-water mixture, and the like, thereby achieving the purpose of prolonging the service life.
Specifically, motor body 1 sets up in the inside of end cover 2, and motor body 1's pivot is worn out from the end hole department of end cover 2, and rotary seal 6 installs in the end hole department, and rotary seal 6 plays sealed effect. The cover plate 5 is positioned at the outer side of the end hole, the bottom of the cover plate 5 is matched and positioned with the shaft shoulder of the rotating shaft, the cover plate 5 surrounds the periphery of the covered end hole, and the cover plate 5 plays a role in dust prevention and water prevention.
It should be noted that the core improvement point of the present invention lies in the physical isolation mode and the related structure of the rotary sealing element 6, and the improvement content of the present invention is not related to the motor body 1, the rotating shaft and the rotary sealing element 6, and please refer to the prior art, which is not repeated here.
For better technical effect, still include with pivot interference fit's clamp plate 3, clamp plate 3 compresses tightly apron 5 for the bottom of apron 5 closely laminates with the shaft shoulder of pivot, and apron 5 is fixed for the pivot relatively. Similarly, the cover plate 5 may be fixed by means of fasteners such as bolts.
In this embodiment, the cover plate 5 and the rotating shaft rotate synchronously, and the inner diameter of the cover plate 5 and the rotating shaft are in transition or interference fit.
In the embodiment where the pressing plate 3 is provided, further, the pressing plate 3 is an annular hollow plate.
For better technical effect, an elastic part can be arranged between the pressing plate 3 and the cover plate 5, and under the pressing action of the pressing plate 3, the elastic part is compressed and deformed, and transmits the deformed elastic force to the cover plate 5, so that pretightening force is applied to the cover plate 5.
Illustratively, the elastic member is a wave spring 4, and the wave spring 4 is also called a wave spring. Besides, the elastic member may also be any other elastic structure, and shall fall within the scope of the present embodiment.
In specific embodiment, apron 5 is the L template that radial dimension is greater than the end opening, that is to say, when apron 5 and end cover 2 cooperate, through set up the L type at the border of apron 5 and bend the body and insert the recess of end cover 2, the male cooperation length is not less than 1mm, and the clearance between the L type is bent the body on the apron 5 and the recess of end cover 2 is the little clearance, can prevent that most muddy water mixture from getting into motor body 1 to this improves waterproof dustproof effect. Similarly, other shapes of bending bodies, such as arc bending bodies, may be provided, and the like, and the present invention is also intended to fall within the scope of the present embodiment.
In this embodiment, a cavity for installing the rotary sealing element 6 is arranged between the end cover 2 and the rotating shaft, the cavity is located in the end hole, the groove is located on the periphery of the cavity, the cavity is located between the groove and the rotating shaft, and the L-shaped bending body is inserted into the groove for matching and positioning.
To sum up, this rotary seal spare protective structure is applicable to rotary seal spare 6's waterproof dirt-proof protection, is particularly useful for rotary seal spare 6's of new energy automobile motor shaft end protection.
It is right above that the utility model provides a rotary seal spare protective structure introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. The utility model provides a rotary seal spare protective structure, includes motor body (1), pivot and rotary seal spare (6), its characterized in that still including locating end cover (2) in the motor body (1) outside, end cover (2) are equipped with the confession the end opening that the pivot was worn out, install rotary seal spare (6) in the end opening and encircle the pivot, the end opening outside be equipped with the bottom with apron (5) of the shaft shoulder cooperation location of pivot, apron (5) encircle and cover the end opening.
2. The rotary seal guard structure according to claim 1, further comprising a pressure plate (3) in interference fit with the shaft, wherein the pressure plate (3) presses the cover plate (5) to achieve close fit between the bottom of the cover plate (5) and the shaft.
3. The rotary seal containment structure according to claim 1 wherein the inner diameter of the cover plate (5) is a transition or interference fit with the shaft to achieve synchronous rotation of the cover plate (5) and the shaft.
4. Rotary seal protection arrangement according to claim 2, characterized in that an elastic element is provided between the pressure plate (3) and the cover plate (5).
5. The rotary seal guard structure according to claim 4, characterized in that the resilient member is a wave spring (4).
6. The rotary seal guard structure according to claim 1, characterized in that the cover plate (5) is an L-shaped plate with a radial dimension larger than the end hole.
7. Rotating seal protection arrangement according to any of claims 1 to 6, characterized in that the edge of the cover plate (5) is provided with a bend inserted into a groove of the end cap (2).
8. The rotary seal protection arrangement according to claim 7, wherein a cavity is provided between the end cap (2) and the rotary shaft for mounting the rotary seal (6), and the groove is located on a peripheral side of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921419317.3U CN210129789U (en) | 2019-08-28 | 2019-08-28 | Rotary sealing element protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921419317.3U CN210129789U (en) | 2019-08-28 | 2019-08-28 | Rotary sealing element protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210129789U true CN210129789U (en) | 2020-03-06 |
Family
ID=69665900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921419317.3U Active CN210129789U (en) | 2019-08-28 | 2019-08-28 | Rotary sealing element protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210129789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389395A (en) * | 2020-10-21 | 2022-04-22 | 襄阳中车电机技术有限公司 | Shaft end sealing structure of motor with coupling, motor and new energy automobile |
-
2019
- 2019-08-28 CN CN201921419317.3U patent/CN210129789U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389395A (en) * | 2020-10-21 | 2022-04-22 | 襄阳中车电机技术有限公司 | Shaft end sealing structure of motor with coupling, motor and new energy automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240111 Address after: Building 2, No. 6 Xinzhong Road, Haichang Street, Jiaxing City, Zhejiang Province, 314400 Patentee after: Zhejiang CRRC shangchi Electric Co.,Ltd. Address before: 412000 Tianxin hi tech park, Shifeng District, Zhuzhou City, Hunan Province Patentee before: CRRC Zhuzhou Electric Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Building 2, No. 6 Xinzhong Road, Haichang Street, Jiaxing City, Zhejiang Province, 314400 Patentee after: Zhejiang Shangchi Electric Co.,Ltd. Country or region after: China Address before: Building 2, No. 6 Xinzhong Road, Haichang Street, Jiaxing City, Zhejiang Province, 314400 Patentee before: Zhejiang CRRC shangchi Electric Co.,Ltd. Country or region before: China |