CN216200504U - Main drive external seal structure - Google Patents
Main drive external seal structure Download PDFInfo
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- CN216200504U CN216200504U CN202122385946.2U CN202122385946U CN216200504U CN 216200504 U CN216200504 U CN 216200504U CN 202122385946 U CN202122385946 U CN 202122385946U CN 216200504 U CN216200504 U CN 216200504U
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Abstract
The utility model discloses a main drive outer seal structure, which belongs to the technical field of sealing equipment, and particularly relates to a main drive outer seal structure, which solves the problems that the compression amount of each lip seal in the traditional technology is inconsistent and the sealing effect is influenced.
Description
Technical Field
The utility model belongs to the technical field of sealing equipment, and particularly relates to a main driving outer sealing structure.
Background
The lip-shaped sealing ring is sealed by deforming the lip mouth under the action of hydraulic pressure to make the lip mouth tightly attached to the sealing surface. The higher the hydraulic pressure is, the tighter the lip edge is attached to the sealing surface, and the lip edge has certain automatic compensation capability after being worn. Such seals are commonly used for reciprocating dynamic seals, commonly known as Y-and V-seals.
In order to ensure good sealing of the hydraulic system, the basic requirements for the sealing device are as follows:
1. with relative movement, the friction caused by the seal is small and the coefficient of friction is stable.
2. The sealing device has good sealing performance in a certain pressure and temperature range, and can automatically improve the sealing degree along with the increase of the pressure.
3. Simple structure, convenient use and maintenance and low cost.
4. The wear-resistant steel plate has the advantages of strong corrosion resistance, difficult aging, good wear resistance, automatic compensation to a certain extent after being worn, and long service life.
In the conventional technology, each lip seal is installed by punching the lip seal through a pressing ring, and all the structures can lead to inconsistent compression of each lip seal, thereby influencing the sealing effect of the main drive outer seal.
SUMMERY OF THE UTILITY MODEL
The utility model provides a main driving outer sealing structure, aiming at solving the problems that the compression amount of each lip seal is inconsistent and the sealing effect is influenced in the prior art, and aiming at: the spacing rings are rigidly connected, and the compression amount of the lip seal is consistent and the sealing effect is ensured.
The technical scheme adopted by the utility model is as follows:
the utility model provides a main drive external seal structure, includes the external seal collar, the inside of external seal collar is provided with the first external seal spacer ring of several, the bottom of first external seal spacer ring is provided with the lip seal, through the horizontal rigid coupling of mounting between the first external seal spacer ring, the one end of external seal collar is provided with the second external seal spacer ring, the second external seal spacer ring with pass through between the first external seal spacer ring the horizontal rigid coupling of mounting.
Adopt above-mentioned scheme, wherein through the connection of mounting, make and form rigid connection between each spacer ring, in the rigid connection structure of this kind of spacer ring, can guarantee that the compressive capacity of all lip seals in the main drive structure is unanimous, and then improve the sealing performance of main drive external seal to avoid because the sealed effect is not good leading to the condition emergence of external seal inefficacy.
Preferably, the first outer sealing spacer ring and the second outer sealing spacer ring are 7-shaped in structure, and the lip seal is arranged in concave positions of the first outer sealing spacer ring and the second outer sealing spacer ring.
By adopting the scheme, the special concave part of the 7-shaped outer sealing spacer ring can reserve a sealing space for the lip seal, and meanwhile, the spacer ring can not be extruded to the lip seal, so that the sealing effect of the lip seal is ensured.
Preferably, the fixing piece is a screw, screw holes are formed in the tops of the first outer sealing spacer and the second outer sealing spacer, and the screw is in threaded connection with the first outer sealing spacer and the second outer sealing spacer through the screw holes.
Preferably, the lip seal is provided with a grease hole in the bottom.
Preferably, one end of the screw is an insertion end, and the other end of the screw is fixedly provided with a cavity seat which is matched with the insertion end.
By adopting the scheme, one end of each screw is the insertion end, the other end of each screw is the cavity seat, the inner wall of each cavity seat and the side wall of the insertion end are of the thread structures matched with each other, when the screw is installed, the insertion end of the first screw can be inserted into the cavity seat of the second screw, so that the screws are fixedly connected with the inner threads of the cavity seats, and through the scheme, the connection stability and the structural strength between the outer sealing spacer rings can be improved.
Preferably, an outer sealing pressure ring is arranged on the side portion of the first outer sealing spacer ring, and the outer sealing pressure ring is fixedly connected with the first outer sealing spacer ring.
Preferably, one side of the outer sealing ring close to the outer sealing spacer ring is fixedly provided with the screw, and the screw is used for fixedly connecting the outer sealing spacer ring with the outer sealing ring.
Preferably, threads are arranged on the inner walls of the insertion end and the cavity seat, and the insertion end is in threaded connection with the cavity seat.
And the side parts of the first outer sealing spacer ring and the second outer sealing spacer ring are fixedly provided with protruding parts, and the protruding parts are matched with the lip seal in shape.
The bottom of the lip seal is provided with an outer seal wear-resistant ring, and the grease hole is arranged in the outer seal wear-resistant ring
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. wherein through the connection of mounting, make and form rigid connection between each spacer ring, in the rigid connection structure of this kind of spacer ring, can guarantee that all lip seals's in the main drive structure the compressive capacity is unanimous, and then improves the sealing performance of main drive external seal to avoid because sealed effect is not good leading to the condition emergence of external seal inefficacy.
2. The special concave part of the 7-shaped outer sealing spacer ring can reserve a sealing space for the lip seal, and meanwhile, the spacer ring cannot be extruded to the lip seal, so that the sealing effect of the lip seal is ensured.
3. One section of each screw is an insertion end, the other end of each screw is a cavity seat, the inner wall of each cavity seat and the side wall of each insertion end are of thread structures matched with each other, when the screw is installed, the insertion end of a first screw can be inserted into the cavity seat of a second screw, so that the screws and the cavity seats are fixedly connected in a thread mode, and through the scheme, the connection stability and the structural strength between the outer sealing spacer rings can be improved.
Drawings
The utility model will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a side view of the internal structure of the present invention;
FIG. 2 is a side view internal view of the screw of the present invention;
FIG. 3 is a schematic view of a first outer seal spacer structure of the present invention;
fig. 4 is a schematic view of a second outer seal spacer ring structure of the present invention.
Reference numerals: 1-outer seal installation and replacement; 2-a first outer seal spacer ring; 3-lip sealing; 4-screws; 5-grease holes; 6-an insertion end; 7-a cavity seat; 8, sealing the pressure ring externally; 9-outer sealing wear-resistant ring; 10-screw holes; 11-a second outer sealing spacer ring.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 to 4.
The utility model provides a main drive external seal structure, includes external seal collar 1, the inside of external seal collar 1 is provided with the first external seal spacer ring 2 of several, the bottom of first external seal spacer ring 2 is provided with lip seal 3, through the horizontal rigid coupling of mounting between the first external seal spacer ring 2, the one end of external seal collar 1 is provided with the outer seal spacer ring 11 of second, the outer seal spacer ring 11 of second with pass through between the first external seal spacer ring 2 the horizontal rigid coupling of mounting.
The structure of the first outer sealing spacer ring 2 and the second outer sealing spacer ring 11 is 7-shaped, and the lip seal 3 is arranged at the concave part of the first outer sealing spacer ring 2 and the second outer sealing spacer ring 11.
The fixing piece is a screw 4, screw holes 10 are formed in the tops of the first outer sealing spacer ring 2 and the second outer sealing spacer ring 11, and the screw 4 is in threaded connection with the first outer sealing spacer ring 2 and the second outer sealing spacer ring 11 through the screw holes 10.
The bottom of the lip seal 3 is provided with a grease hole 5.
One end of the screw 4 is an insertion end 6, the other end of the screw is fixedly provided with a cavity seat 7, and the cavity seat 7 is matched with the insertion end 6.
The side part of the first outer sealing spacer ring 2 is provided with an outer sealing press ring 8, and the outer sealing press ring 8 is fixedly connected with the first outer sealing spacer ring 2.
Threads are arranged on the inner walls of the insertion end 6 and the cavity seat 7, and the insertion end 6 is in threaded connection with the cavity seat 7.
The side parts of the first outer sealing spacer ring 2 and the second outer sealing spacer ring 11 are fixedly provided with protruding parts which are matched with the lip seal 3 in shape.
The bottom of the lip seal 3 is provided with an outer sealing wear-resisting ring 9, and the grease hole 5 is arranged in the outer sealing wear-resisting ring 9.
Wherein, the upper part of each outer sealing spacer ring is fixedly provided with a screw 4, one end of the screw 4 is an insertion end 6, the insertion end 6 can be connected in the cavity seat 7 by screw thread, the principle is that the side wall of the insertion end 6 and the inner wall of the cavity seat 7 are provided with screw threads which are mutually matched, when the device is installed, the insertion end 6 and the cavity seat 7 can be in threaded connection to complete rigid connection of the outer sealing spacer rings 2, wherein, the bottom of the cavity seat 7 of the screw 4 in the outer seal spacer ring 2 close to the outer seal press ring 8 is contacted with and pressed tightly against the outer seal press ring 8 and is close to the screw 4 in the outer seal spacer ring 2 of the outer seal mounting ring 1, the inserting end 6 is fixedly connected with the side wall of the outer sealing mounting ring 1 in a threaded connection mode, and the outer sealing spacer rings 2, the outer sealing press ring 8 and the outer sealing mounting ring 1 are integrally and rigidly connected, so that the compression amount of the lip seals 2 is the same when the lip seals are installed in a stamping mode.
Wherein the external seal spacer ring 2 is 7 type structures, and lip seal 3 sets up the interior recess department at external seal spacer ring 2 wherein, adopts the external seal spacer ring 2 of this kind of structure, can leave 1 deformation space for lip seal 3, and makes external seal spacer ring 2 can not extrude lip seal 3.
In the present embodiment, there are 4 first outer seal spacers 2 and 1 second outer seal spacer 11, where 1 lip seal 3 is disposed between each outer seal spacer 2, where the lip seal 3 is disposed in the concave recess of the first outer seal spacer 2, where the first outer seal spacer 2 has a protrusion disposed in the concave recess of the first outer seal spacer 2, as shown in fig. 3, and such protrusion can cooperate with the shape of the lip seal 3 to form a support for the lip seal 3; the second outer seal spacer ring 11 is arranged at the end of the cavity in the outer seal mounting ring 1, the protruding part of the second outer seal spacer ring 11 is arranged opposite to the protruding part of the first outer seal spacer ring 2, the specific structure is shown in fig. 4, the function of the second outer seal spacer ring is the same as that of the first outer seal spacer ring 2, and the lip seal 3 can be supported.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. The utility model provides a main drive external seal structure, includes external seal collar (1), the inside of external seal collar (1) is provided with the first external seal spacer ring of several (2), the bottom of first external seal spacer ring (2) is provided with lip seal (3), its characterized in that, through the horizontal rigid coupling of mounting between first external seal spacer ring (2), the one end of external seal collar (1) is provided with second external seal spacer ring (11), second external seal spacer ring (11) with pass through between first external seal spacer ring (2) the horizontal rigid coupling of mounting.
2. A main drive outer seal arrangement according to claim 1, characterised in that the lip seal (3) is provided with a grease hole (5) in its base.
3. A main drive outer seal arrangement according to claim 2, characterised in that the bottom of the lip seal (3) is provided with an outer seal wear ring (9), the grease hole (5) being provided in the outer seal wear ring (9).
4. A main drive outer sealing structure according to claim 1, wherein an outer sealing press ring (8) is arranged at a side of the first outer sealing spacer ring (2), and the outer sealing press ring (8) is fixedly connected with the first outer sealing spacer ring (2).
5. A main drive outer seal arrangement according to claim 1, characterised in that the sides of the first outer seal spacer ring (2) and the second outer seal spacer ring (11) are fixedly provided with protrusions which form-fit with the lip seal (3).
6. A main drive outer seal arrangement according to claim 1, wherein the arrangement of the first outer seal spacer ring (2) and the second outer seal spacer ring (11) is L-shaped, and the lip seal (3) is arranged in an inner recess of the first outer seal spacer ring (2) and the second outer seal spacer ring (11).
7. A main driving external sealing structure according to claim 1, wherein the fixing member is a screw (4), screw holes (10) are provided at tops of the first external sealing spacer ring (2) and the second external sealing spacer ring (11), and the screw (4) is in threaded connection with the first external sealing spacer ring (2) and the second external sealing spacer ring (11) through the screw holes (10).
8. A main drive external sealing structure according to claim 7, wherein one end of the screw (4) is an insertion end (6), and the other end is fixedly provided with a cavity seat (7), and the cavity seat (7) is matched with the insertion end (6).
9. A main drive outer sealing structure according to claim 8, wherein the insertion end (6) and the inner wall of the cavity seat (7) are provided with threads, and the insertion end (6) is in threaded connection with the cavity seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122385946.2U CN216200504U (en) | 2021-09-30 | 2021-09-30 | Main drive external seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122385946.2U CN216200504U (en) | 2021-09-30 | 2021-09-30 | Main drive external seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200504U true CN216200504U (en) | 2022-04-05 |
Family
ID=80927043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122385946.2U Active CN216200504U (en) | 2021-09-30 | 2021-09-30 | Main drive external seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200504U (en) |
-
2021
- 2021-09-30 CN CN202122385946.2U patent/CN216200504U/en active Active
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