CN210218440U - Waterproof leak protection fat sealing washer - Google Patents
Waterproof leak protection fat sealing washer Download PDFInfo
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- CN210218440U CN210218440U CN201920864165.1U CN201920864165U CN210218440U CN 210218440 U CN210218440 U CN 210218440U CN 201920864165 U CN201920864165 U CN 201920864165U CN 210218440 U CN210218440 U CN 210218440U
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Abstract
A waterproof grease-leakage-proof sealing ring belongs to the technical field of bearings and is matched with a high-rotation-speed deep groove ball bearing for use, wherein the high-rotation-speed deep groove ball bearing comprises a central hole, an inner ring, an outer ring and a bearing dust-proof groove; the novel leakproof seal ring comprises a seal ring main body, a seal outer lip and a seal inner lip; the inner sealing lip comprises a contact lip and a non-contact lip, and the contact lip is arranged on one surface which is in contact with the high-rotation-speed deep groove ball bearing and extends to the lowest end; the outer sealing lip is tightly matched with the outer ring, and the inner sealing lip is tightly matched with the inner ring; the special-shaped framework is of an integral structure and is integrally annular, and any cross section of the annular special-shaped framework comprises a middle supporting main body, a sealing outer lip supporting body close to the outer side and a sealing inner lip supporting body close to the inner side; the sealing outer lip supporting body comprises a transverse section connected with the supporting main body and a convex section longitudinally arranged from the transverse section to the outer side; the utility model has the advantages that: the strength of the sealing ring is increased, and the leakage of the grease in the internal and external environments can be prevented at the same time.
Description
Technical Field
The utility model discloses a high rotational speed deep groove ball bearing sealing washer, in particular to novel waterproof leak protection fat sealing washer of high rotational speed deep groove ball bearing, this product is the practical technique of the waterproof leak protection fat of high rotational speed deep groove ball bearing for gardens electric tool, belongs to bearing technical field.
Background
Bearing seal circle is the main sealing part in the bearing, gardens electric tool lawn mower bears the influence of the adverse circumstances of use with high rotational speed axle, the rotational speed of bearing is higher (11000RPM), as shown in fig. 9, the bearing that uses in the present gardens electric tool lawn mower is the bearing seal circle that inside cladding has L type skeleton, the water leakage of ubiquitous bearing, leak the fat, sealing performance is relatively poor, external moisture, inside dust and the instrument drive gear grease infiltration bearing, the inside grease of bearing leaks, the bearing that leads to using always can appear not equidimension leak fat phenomenon or temperature rise too fast, all can direct influence the life of bearing. Through analysis, the main reasons for the leakage of the grease are as follows: the scotch block oil accounts for about 80% of the inner space, under the high-speed running condition, the scotch block is continuously engaged at a high speed, the inner pressure is gradually increased, and pressure difference is generated between the inside and the outside of the bearing, so that the gear oil enters the inside of the bearing from the outside of the bearing through the outer lip and the inner lip of the sealing ring, the oil quantity in the bearing is continuously increased, and the oil which is continuously increased can overflow from the other side of the bearing while rotating at a high speed. And lead to bearing to appear peeling off in advance then in high-speed rotation, the scotch block is constantly high-speed interlock and is worn and torn, leads to the metal particle in the scotch block grease more and more, and inside the contaminated scotch block oil got into the bearing, will lead to the bearing to appear failing in advance the phenomenon, life-span greatly reduced. In order to prevent the bearing from being waterproof and leakage-proof, the interference magnitude of the sealing ring and the inner ring dustproof groove can be properly increased, but if the interference magnitude is too large, the sealing ring is in tight contact with the inner ring, the friction torque of the bearing is increased, the temperature rise of the bearing is too high during high-speed rotation, and therefore the bearing is fatigue-stripped in advance, and the requirement of long service life cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at among the above-mentioned prior art, in order to prevent that the bearing is waterproof, the production of leak protection fat phenomenon, avoid leading to bearing friction torque increase simultaneously, bearing temperature rise can be too high during high-speed rotation, the bearing appears tiredly in advance and peels off, can't reach the condition of long-life requirement, a two lip structure sealing washers of heterotypic skeleton is provided, under the prerequisite that does not increase the cost, can reach when preventing that the inside grease of bearing from leaking, also can prevent outside moisture, the purpose of dust and grease infiltration.
In order to realize the purpose, the utility model adopts the technical scheme that: a waterproof grease-leakage-proof sealing ring, called leakage-proof sealing ring for short, is used in cooperation with a high-rotation-speed deep groove ball bearing; the high-rotation-speed deep groove ball bearings comprise a central hole, an inner ring and an outer ring, wherein bearing dust grooves are formed in the inner ring and the outer ring, and two sides of each high-rotation-speed deep groove ball bearing are respectively provided with 1 novel leakage-proof sealing ring; the novel leakage-proof sealing ring comprises a sealing ring body, and the novel leakage-proof sealing ring is integrally annular; the sealing ring body comprises a sealing ring main body, a sealing outer lip close to the outer side of the circular ring shape and a sealing inner lip close to the inner side of the circular ring shape; the sealing inner lip comprises a contact lip and a non-contact lip, and the contact lip is arranged on one surface contacted with the high-rotation-speed deep groove ball bearing and extends to the lowest end; the outer sealing lip is tightly matched with the outer ring, and the inner sealing lip is tightly matched with the inner ring;
the special-shaped framework is of an integral structure and is integrally annular, and any side section of the annular special-shaped framework comprises a middle supporting main body, a sealing outer lip supporting body close to the outer side and a sealing inner lip supporting body close to the inner side; the sealing outer lip supporting body comprises a transverse section connected with the supporting main body and a convex section longitudinally arranged from the transverse section to the outer side;
the supporting main body and the sealing ring main body are pressed and tightly fixed together, the supporting main body is arranged on one surface close to the high-rotation-speed deep groove ball bearing, the sealing outer lip supporting body is wrapped in the sealing outer lip, and the sealing inner lip supporting body is wrapped in the sealing inner lip;
the included angle between the transverse section and the supporting main body is 90-100 degrees, and the protruding section is parallel to the supporting main body.
The outer sealing lip and the inner sealing lip of the novel leakproof sealing ring are connected with the bearing dustproof grooves of the outer ring and the inner ring in a sealing way.
The included angle between the transverse section and the supporting main body is 95 degrees.
The sealing inner lip supporting body inclines to one side of the high-rotating-speed deep groove ball bearing, and the included angle between the sealing inner lip and the supporting main body is 120-160 degrees.
The included angle between the sealing inner lip and the supporting main body is 141 degrees.
The special-shaped framework is formed by stamping a high-strength structural steel plate through conventional stamping equipment and a special cold stamping die for the special-shaped framework, the product brand of the special-shaped framework is SPCC, and the product model of the stamping equipment is J23-16 open type inclinable press.
The diameter of the central hole of the high-rotating-speed deep groove ball bearing is 12mm, and the outer diameter of the high-rotating-speed deep groove ball bearing is 32 mm.
The main body material of the sealing ring is Japanese JSR nitrile rubber, and the product brand is N230 virgin rubber and auxiliary materials.
Compared with the prior art, the beneficial effects of the utility model are that: the research and development of the novel leakproof seal ring structure technology adopts a special-shaped framework structure, further improves the strength of the seal ring, can simultaneously prevent the leakage of grease in the internal and external environments, and better plays a role in sealing the seal ring; grease in the bearing can be effectively prevented from leaking, the sealing ring and the outer ring dustproof groove can be matched more tightly, and the grease can be prevented from leaking from the outer side of the sealing ring better; the transmission gear grease adjacent to the bearing can be better prevented from permeating into the bearing. The bearing adopting the novel high-rotating-speed deep groove ball bearing waterproof grease-leakage-proof sealing ring has the service life prolonged by 1.5 times to 2 times.
Drawings
FIG. 1-1 is: the utility model is assembled with a high-speed deep groove ball bearing and is provided with a front view and a sectional view;
FIGS. 1-2 are: the enlarged view of part A of the figure 1-1 (showing that the two ends of the novel leakproof seal ring are hermetically connected with the inner ring and the outer ring);
FIG. 2-1 is: the utility model discloses a top view;
FIG. 2-2 is: the enlarged view of the part B of FIG. 2-1 (with the cross-sectional view of the present invention superimposed);
FIG. 3-1 is: the utility model discloses a bottom view;
FIG. 3-2 is: the enlarged view of the part C of FIG. 3-1 (with the cross-sectional view of the present invention superimposed thereon);
FIG. 4 is a diagram of: FIG. 2-1 is an enlarged sectional view A-A;
FIG. 5 is a diagram of: the enlarged view of the part D of FIG. 4 (showing the reinforced support condition of the convex part of the special-shaped framework to the outer sealing lip);
FIG. 6-1 is: a top view of the special-shaped framework;
FIG. 6-2 is: a bottom view of the special-shaped framework;
FIG. 7 is a diagram of: FIG. 6-1, enlarged sectional view B-B; (ii) a
FIG. 8 is a diagram of: enlarged view of part E of FIG. 7;
FIG. 9 is a schematic diagram of: background art: the inside cladding has the conventional bearing seal circle cross-section structure chart of Z type skeleton.
Description of reference numerals: the anti-leakage sealing ring comprises a leakage-proof sealing ring 1, a sealing ring main body 101, a sealing outer lip 102, a sealing inner lip 103, a contact lip 10301, a non-contact lip 10302, a special-shaped framework 104, a supporting main body 10401, a sealing outer lip supporting body 10402, a transverse section 10402A, a bulge section 10402B, a sealing inner lip supporting body 10403, a high-rotation-speed deep groove ball bearing 2, a central hole 201, an outer ring 202, an inner ring 203 and a bearing dust-proof groove 204.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the present invention.
As shown in fig. 1-1 to 8, a waterproof grease-leakage-proof sealing ring, called leakage-proof sealing ring 1 for short, is used in cooperation with a high-speed deep groove ball bearing 2 as shown in fig. 1-1 to 4; the high-rotation-speed deep groove ball bearing 2 comprises a central hole 201, an outer ring 202 and an inner ring 203, bearing dust grooves 204 are respectively arranged in the inner ring 203 and the outer ring 202, and two sides of the high-rotation-speed deep groove ball bearing 2 are respectively provided with 1 novel leakage-proof sealing ring 1; the novel leakage-proof sealing ring 1 comprises a sealing ring body, and the novel leakage-proof sealing ring 1 is integrally annular; the sealing ring body comprises a sealing ring main body 101, a sealing outer lip 102 close to the outer side of the circular ring shape and a sealing inner lip 103 close to the inner side of the circular ring shape; the seal inner lip 103 comprises a contact lip 10301 and a non-contact lip 10302, wherein the contact lip 10301 is arranged on one surface contacted with the high-speed deep groove ball bearing 2 and extends to the lowest end; the outer seal lip 102 is tightly matched with the outer ring 202, and the inner seal lip 103 is tightly matched with the inner ring 203;
as shown in fig. 4 to 8, the novel leakproof seal ring 1 further comprises a special-shaped framework 104, the special-shaped framework 104 is of an integral structure and is integrally annular, and any cross section of the annular special-shaped framework 104 comprises a middle supporting main body 10401, an outer sealing lip supporting body 10402 and an inner sealing lip supporting body 10403; the outer seal lip support 10402 comprises a transverse section 10402A connected with the support main body 10401 and a convex section 10402B longitudinally arranged from the transverse section 10402A to the outer side;
the support main body 10401 and the seal ring main body 101 are pressed and tightly fixed together, the support main body 10401 is arranged on one surface close to the high-rotation-speed deep groove ball bearing 2, the seal outer lip support 10402 is covered in the seal outer lip 102, and the seal inner lip support 10403 is covered in the seal inner lip 103;
as shown in fig. 8, the included angle α between the transverse segment 10402A and the support body 10401 is 95 °, and the convex segment 10402B is parallel to the support body 10401.
As shown in FIG. 1-1, the outer sealing lip 102 and the inner sealing lip 103 of the novel leakproof sealing ring 1 are connected with the bearing dustproof grooves 204 of the outer ring 202 and the inner ring 203 in a sealing way.
As shown in fig. 7, the inner seal lip support 10403 is inclined toward the high-speed deep groove ball bearing 2, and an included angle β between the inner seal lip 103 and the support main body 10401 is 141 °.
The special-shaped framework 104 is formed by stamping a high-strength structural steel plate through conventional stamping equipment and a special cold stamping die for the special-shaped framework, the product brand of the high-strength structural steel plate is SPCC (spray pressure welding), and the product model of the stamping equipment is a J23-16 open type inclinable press.
As shown in FIG. 1-1, the diameter φ A of the central hole 201 of the high-rotation-speed deep groove ball bearing 2 is 12mm, the outer diameter φ B of the high-rotation-speed deep groove ball bearing 2 is 32mm, and the diameter of the steel ball of the high-rotation-speed deep groove ball bearing 2 is 5.953 mm.
The sealing ring main body 101 is made of Japanese JSR nitrile rubber, and the product brand is N230 virgin rubber and auxiliary materials.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the ordinary changes and replacements within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A waterproof grease-leakage-proof sealing ring, called leakage-proof sealing ring for short, is used in cooperation with a high-rotation-speed deep groove ball bearing; the high-rotation-speed deep groove ball bearing comprises a central hole, an inner ring and an outer ring, wherein bearing dust grooves are formed in the inner ring and the outer ring, and 1 novel leakage-proof sealing ring is arranged on each of two surfaces of each high-rotation-speed deep groove ball bearing; the novel leakage-proof sealing ring comprises a sealing ring body, and the novel leakage-proof sealing ring is integrally annular; the sealing ring body comprises a sealing ring main body, a sealing outer lip close to the outer side of the circular ring shape and a sealing inner lip close to the inner side of the circular ring shape; the sealing inner lip comprises a contact lip and a non-contact lip, and the contact lip is arranged on one surface contacted with the high-rotation-speed deep groove ball bearing and extends to the lowest end; the outer sealing lip is tightly matched with the outer ring, and the inner sealing lip is tightly matched with the inner ring, and the outer sealing lip is characterized in that:
the special-shaped framework is of an integral structure and is integrally annular, and any side section of the annular special-shaped framework comprises a middle supporting main body, a sealing outer lip supporting body close to the outer side and a sealing inner lip supporting body close to the inner side; the sealing outer lip supporting body comprises a transverse section connected with the supporting main body and a convex section longitudinally arranged from the transverse section to the outer side;
the supporting main body and the sealing ring main body are pressed and tightly fixed together, the supporting main body is arranged on one surface close to the high-rotation-speed deep groove ball bearing, the sealing outer lip supporting body is wrapped in the sealing outer lip, and the sealing inner lip supporting body is wrapped in the sealing inner lip;
the included angle between the transverse section and the supporting main body is 90-100 degrees, and the protruding section is parallel to the supporting main body.
2. The waterproof and leak-proof sealing ring according to claim 1, wherein: the outer sealing lip and the inner sealing lip of the novel leakproof sealing ring are connected with the bearing dustproof grooves of the outer ring and the inner ring in a sealing way.
3. The waterproof and leak-proof sealing ring according to claim 1, wherein: the included angle between the transverse section and the supporting main body is 95 degrees.
4. The waterproof and leak-proof sealing ring according to claim 1, wherein: the sealing inner lip supporting body inclines to one side of the high-rotating-speed deep groove ball bearing, and the included angle between the sealing inner lip and the supporting main body is 120-160 degrees.
5. The waterproof and grease-proof sealing ring according to claim 3, wherein: the included angle between the sealing inner lip and the supporting main body is 141 degrees.
6. The waterproof and leak-proof sealing ring according to claim 1, wherein: the special-shaped framework is formed by stamping a high-strength structural steel plate by using conventional stamping equipment and a special cold stamping die for the special-shaped framework.
7. The waterproof and leak-proof sealing ring according to claim 1, wherein: the diameter of the central hole of the high-rotating-speed deep groove ball bearing is 12mm, and the outer diameter of the high-rotating-speed deep groove ball bearing is 32 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920864165.1U CN210218440U (en) | 2019-06-10 | 2019-06-10 | Waterproof leak protection fat sealing washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920864165.1U CN210218440U (en) | 2019-06-10 | 2019-06-10 | Waterproof leak protection fat sealing washer |
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| Publication Number | Publication Date |
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| CN210218440U true CN210218440U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920864165.1U Active CN210218440U (en) | 2019-06-10 | 2019-06-10 | Waterproof leak protection fat sealing washer |
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| CN (1) | CN210218440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094427A (en) * | 2019-06-10 | 2019-08-06 | 余姚市新丰轴承有限公司 | Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring |
-
2019
- 2019-06-10 CN CN201920864165.1U patent/CN210218440U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094427A (en) * | 2019-06-10 | 2019-08-06 | 余姚市新丰轴承有限公司 | Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring |
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