CN110762116A - Radial spherical plain bearing with large swing angle and large length-diameter ratio and sealing ring injection molding method thereof - Google Patents
Radial spherical plain bearing with large swing angle and large length-diameter ratio and sealing ring injection molding method thereof Download PDFInfo
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- CN110762116A CN110762116A CN201910960459.9A CN201910960459A CN110762116A CN 110762116 A CN110762116 A CN 110762116A CN 201910960459 A CN201910960459 A CN 201910960459A CN 110762116 A CN110762116 A CN 110762116A
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- ring
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- shaped rubber
- spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C2045/2683—Plurality of independent mould cavities in a single mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a radial spherical plain bearing with a large swing angle and a large length-diameter ratio and a sealing ring injection molding method thereof. The radial spherical plain bearing comprises an outer ring, an inner ring, a sealing ring and grease; the outer wall of the inner ring is provided with an outer spherical surface in the middle, and the inner wall of the outer ring is provided with a matched inner spherical surface at a position corresponding to the outer spherical surface; the inner wall of the outer ring is symmetrically provided with concave semi-closed accommodating cavities at two sides of the inner spherical surface, and the outer side walls of the semi-closed accommodating cavities are arranged close to the end surface of the outer ring; the outer wall of the inner ring is symmetrically provided with concave caulking grooves at two sides close to the inner spherical surface; the whole sealing ring is arranged in an S shape and comprises an S-shaped rubber base body, a framework and a spring; the framework end of the S-shaped rubber matrix can be just embedded in the semi-closed accommodating cavity, and the spring end can tightly clamp the groove bottom of the caulking groove; grease is filled in the areas which are outside the outer ring and the inner ring and sealed by the S-shaped rubber matrix. Therefore, compared with the conventional bearing, the bearing has a larger length-diameter ratio and a larger swing angle.
Description
Technical Field
The invention relates to a radial spherical plain bearing, in particular to a radial spherical plain bearing with a large swing angle and a large length-diameter ratio, which is suitable for damping mechanisms of engineering vehicles and recreational vehicles.
Background
The conventional bearing is generally smaller in long diameter and smaller in swing angle, the requirement cannot be met at one time in equipment (mainly damping mechanisms of engineering vehicles and recreational vehicles) with large steering and large swing amplitude, the requirement can only be met with the assistance of a large number of auxiliary parts, the difficulty of assembly is increased by the aid of the excessive auxiliary parts, the precision of the equipment is reduced simultaneously, and the later maintenance and the maintenance of the equipment are not facilitated.
Meanwhile, in most conventional bearings, the sealing element has a thin and soft lip, is extremely easy to deform and damage in the assembling and using processes, and has no long-term effective guarantee for the sealing performance.
The aspect ratio is small, the sealing space is limited, the injection amount of lubricating grease is limited, oil is required to be injected continuously for lubrication in the using process, and on one hand, the process is complicated; on the other hand, during design, the oil filling channel is necessarily required to be designed, and various auxiliary equipment required by oil filling is equipped, so that the operation cost is increased.
In addition, the damping mechanism of the engineering vehicle and the leisure vehicle has poor working environment, high requirements on the damping bearing, and high requirements on dust prevention and corrosion prevention.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a radial spherical plain bearing with a large swing angle and a large length-diameter ratio, which has a larger length-diameter ratio and a larger swing angle compared with the conventional bearing.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a radial spherical plain bearing with a large swing angle and a large length-diameter ratio comprises an outer ring, an inner ring, a sealing ring and grease; the outer wall of the inner ring is provided with an outer spherical surface in the middle, and the inner wall of the outer ring is provided with a matched inner spherical surface at a position corresponding to the outer spherical surface; the inner wall of the outer ring is symmetrically provided with concave semi-closed accommodating cavities at two sides of the inner spherical surface, and the outer side walls of the semi-closed accommodating cavities are arranged close to the end surface of the outer ring; the outer wall of the inner ring is symmetrically provided with concave caulking grooves at two sides close to the inner spherical surface; the whole sealing ring is arranged in an S shape and comprises an S-shaped rubber base body, a framework and a spring; one end of the S-shaped rubber matrix is arranged to be a framework end, and a framework is embedded in the framework end; the other end is a spring end which is embedded with a spring; the framework end of the S-shaped rubber matrix can be just embedded in the semi-closed accommodating cavity, and the spring end can tightly clamp the groove bottom of the caulking groove; grease is filled in the areas which are outside the outer ring and the inner ring and sealed by the S-shaped rubber matrix.
Furthermore, after one end of the S-shaped rubber matrix extends for a length L along the length direction, the S-shaped rubber matrix is folded outwards to form a framework end.
Furthermore, the surface of the inner ring adopts an electroplating surface treatment mode, and the surface of the outer ring adopts a phosphating surface treatment process.
Further, the outer side wall of the caulking groove is obliquely arranged.
The invention also provides a sealing ring injection molding method, which is based on injection mold molding, wherein an injection mold comprises an upper mold component and a lower mold component, the upper mold component is connected above the lower mold component through a guide pillar, the upper mold component comprises an upper cover plate and a cavity upper mold, and the upper surface of the cavity upper mold is fixedly connected with the upper cover plate into a whole; the lower die assembly comprises a cavity lower die and a base, and the lower surface of the cavity lower die is fixedly connected with the base into a whole; more than one cavity can be formed between the lower surface of the cavity upper die and the upper surface of the cavity lower die; disposing a framework in a position corresponding to a framework end of the S-shaped rubber base body in the cavity, and disposing a spring in a position corresponding to a spring end of the S-shaped rubber base body; by injecting rubber into the cavity, an S-shaped sealing ring with a framework embedded at one end and a spring embedded at the other end can be formed.
According to the technical scheme, compared with the prior art, the invention has the following advantages:
1. the outer wall of the inner ring is symmetrically provided with the inwards concave caulking grooves at two sides close to the inner spherical surface, so that the two sides of the inner ring are provided with the ear structures, the length-diameter ratio is increased, the outer ring can swing in a wider range relative to the inner ring, the requirement of a large swing range of the shock absorber is met, meanwhile, a larger space is provided for the sealing ring, more grease can be stored, and the permanent lubrication of the product in the service life is ensured.
2. The sealing ring is arranged into an S-shaped structure, one end of the sealing ring is arranged into a framework end embedded with a framework, and the other end of the sealing ring is arranged into a spring end embedded with a spring, so that the S-shaped structure ensures that the sealing ring has good ductility when the inner ring and the outer ring swing relatively, ensures that two sides of the sealing ring are fixed under the condition of a large swing angle, and has the characteristic of lasting sealing; and the end of the framework is embedded in the semi-closed containing cavity, and the spring end tightly hoops the groove bottom of the caulking groove, so that the sealing performance of the sealing ring in the working process is ensured, and the falling risk of the sealing ring in the working process is effectively prevented.
In conclusion, the design of the sealing element is widened due to the larger length-diameter ratio of the bearing, the influence of the structure and the space on the traditional sealing element is eliminated, the thickness and the hardness of the sealing element increased by the special bearing are increased, and the spring locking device is additionally arranged at the lip, so that the lip has larger deformation toughness, and the sealing performance cannot be reduced due to fatigue and abrasion of the sealing element during the service life of the bearing, so that the permanent sealing effect is achieved; under the sealing advantage, the sealing space is maximized, so that more lubricating grease is injected, the complex procedure of continuous oil injection and lubrication of the traditional bearing in the using process is omitted, the design of an oil injection channel is omitted, auxiliary equipment generated by oil injection is reduced, and the cost of the equipment is reduced; the surface of the special bearing inner ring is subjected to chemical treatment, wherein the surface treatment modes such as nickel plating, zinc plating and the like are adopted, so that the corrosion resistance of the surface of the bearing is enhanced, the corrosion of the bearing caused by long time such as storage, transportation and the like is avoided, and meanwhile, when the working environment of the bearing is in severe working conditions such as strong acid, strong alkali and the like, better selection is provided.
Drawings
FIG. 1 is a schematic view of the construction of a bearing according to the present invention;
FIG. 2 is a schematic structural view of the seal ring of the present invention;
FIG. 3 is a top view of the injection mold of the present invention;
FIG. 4 is a cross-sectional view A-A of the injection mold of the present invention;
FIG. 5 is a cross-sectional view B-B of the injection mold of the present invention;
in the figure: 1. an outer ring; 1-1, the outer wall of the outer ring; 1-2, inner spherical surface; 1-3, a semi-closed accommodating cavity which is formed by the inner wall of the outer ring at the positions close to the two end faces and is used for accommodating a sealing ring framework is formed in a concave mode; 1-4, the outer side wall of the semi-closed accommodating cavity; 2-inner ring; 2-1, caulking groove; 2-2, an outer spherical surface; 2-3-1, the outer side wall of the caulking groove; 2-3-2, the outer wall of the inner ring; 2-4, end face of inner ring; 2-5, the inner diameter of the inner ring; 3. a seal ring; 3-1, a rubber matrix; 3-2, a spring; 3-3, a framework; 4. grease; 5-1, an upper cover plate; 5-2, molding the upper die of the cavity; 5-3, a cavity lower die; 5-4, a base; 5-5, screws; 5-6, and guiding columns.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The relative arrangement of the components and steps, expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways (rotated 90 degrees or at other orientations).
As shown in fig. 1 and 2, the radial spherical plain bearing with a large pivot angle and a large length-diameter ratio comprises an outer ring, an inner ring, a sealing ring and grease; wherein:
the inner ring is provided with an outer spherical surface in the middle of the outer wall, and the outer wall of the inner ring is symmetrically provided with inwards concave caulking grooves at two sides close to the inner spherical surface; a distance exists between the outer side wall of the caulking groove and the end face of the inner ring, so that the ear structures are additionally arranged on two sides of the inner ring, the length-diameter ratio is increased, the outer ring can swing in a wider range relative to the inner ring, the requirement of a large swing range of a shock absorber is met, meanwhile, a larger space is provided for a sealing ring, more grease can be stored, and the permanent lubrication of a product in the service life is guaranteed.
The inner wall of the outer ring is provided with a matched inner spherical surface at a position corresponding to the outer spherical surface; the inner wall of the outer ring is symmetrically provided with concave semi-closed accommodating cavities at two sides of the inner spherical surface, and the outer side wall of each semi-closed accommodating cavity is arranged close to the end surface of the outer ring.
The seal ring is integrally arranged in an S shape and comprises an S-shaped rubber base body, a framework and a spring; one end of the S-shaped rubber matrix is arranged to be a framework end, and a framework is embedded in the framework end; the other end is a spring end which is embedded with a spring.
The framework end of the S-shaped rubber matrix can be just embedded in the semi-closed accommodating cavity, the framework is in interference fit with the cavity bottom of the semi-closed accommodating cavity, and the spring end can tightly clamp the groove bottom of the caulking groove and is in interference fit with the groove bottom of the caulking groove; grease is filled in the areas which are outside the outer ring and the inner ring and sealed by the S-shaped rubber matrix. The structure ensures the sealing performance of the sealing ring in the working process and effectively prevents the falling risk of the sealing ring in the working process. The sealing washer base member adopts the rubber material, and the structure is S type structure, and the sealing washer has good ductility when having guaranteed the relative swing of inner and outer lane, guarantees that the sealing washer both sides are fixed under the big pivot angle condition, has permanent sealed characteristic.
Furthermore, after one end of the S-shaped rubber matrix extends for a length L along the length direction, the S-shaped rubber matrix is folded outwards to form a framework end. So that the framework end of the S-shaped rubber matrix is clamped in the semi-closed accommodating cavity and cannot fall off.
Furthermore, the surface of the inner ring adopts an electroplating surface treatment mode, and the surface of the outer ring adopts a phosphating surface treatment process. The surface of the bearing has excellent corrosion resistance and can adapt to the working condition environment of a damping system.
Further, the outer side wall of the caulking groove is obliquely arranged.
The invention also provides a sealing ring injection molding method, which is based on injection mold molding, wherein an injection mold comprises an upper mold component and a lower mold component, the upper mold component is connected above the lower mold component through 4 guide pillars, and the guide pillars are connected to ensure the mutual positions of an upper mold of a cavity and a lower mold of the cavity. The upper die assembly comprises an upper cover plate and a cavity upper die, and the upper surface of the cavity upper die is fixedly connected with the upper cover plate into a whole; in the invention, the upper cover plate and the upper die of the cavity are connected by 4 screws. The lower die assembly comprises a cavity lower die and a base, and the lower surface of the cavity lower die is fixedly connected with the base into a whole; in the invention, the lower die of the cavity and the base are also connected and fixed by 4 screws. More than one cavity can be formed between the lower surface of the cavity upper die and the upper surface of the cavity lower die; disposing a framework in a position corresponding to a framework end of the S-shaped rubber base body in the cavity, and disposing a spring in a position corresponding to a spring end of the S-shaped rubber base body; by injecting rubber into the cavity, an S-shaped sealing ring with a framework embedded at one end and a spring embedded at the other end can be formed.
In the invention, 40 cavities are designed between the upper die and the lower die of the cavity, namely 40 sealing rings can be produced by one-time injection molding, and the invention has the characteristics of simplicity, convenience and high efficiency, is convenient to install and disassemble, is stable and reliable in the processing process and has higher production efficiency. Due to higher processing efficiency and processing stability. The processing cost and the labor cost of the sealing ring can be greatly reduced, so that the cost of the whole sealing ring is reduced, and the invention has certain price advantage.
Claims (5)
1. A radial spherical plain bearing with a large swing angle and a large length-diameter ratio comprises an outer ring, an inner ring, a sealing ring and grease; the outer wall of the inner ring is provided with an outer spherical surface in the middle, and the inner wall of the outer ring is provided with a matched inner spherical surface at a position corresponding to the outer spherical surface; the inner wall of the outer ring is symmetrically provided with concave semi-closed accommodating cavities at two sides of the inner spherical surface, and the outer side wall of each semi-closed accommodating cavity is arranged close to the end surface of the outer ring;
the outer wall of the inner ring is symmetrically provided with concave caulking grooves at two sides close to the inner spherical surface;
the whole sealing ring is arranged in an S shape and comprises an S-shaped rubber base body, a framework and a spring;
one end of the S-shaped rubber matrix is arranged to be a framework end, and a framework is embedded in the framework end; the other end is a spring end which is embedded with a spring;
the framework end of the S-shaped rubber matrix can be just embedded in the semi-closed accommodating cavity, and the spring end can tightly clamp the groove bottom of the caulking groove;
grease is filled in the areas which are outside the outer ring and the inner ring and sealed by the S-shaped rubber matrix.
2. A radial spherical plain bearing with large pivot angle and large length-diameter ratio as claimed in claim 1, wherein one end of the S-shaped rubber base is extended by a length L along the length direction and then folded outwards to form a skeleton end.
3. A radial spherical plain bearing with large pivot angle and large length-diameter ratio as claimed in claim 1, wherein the inner ring surface is treated by electroplating and the outer ring surface is treated by phosphating.
4. A radial spherical plain bearing with a large pivot angle and a large length-diameter ratio as claimed in claim 1, wherein the outer side wall of the caulking groove is inclined.
5. A sealing ring injection molding method is based on injection mold molding and is characterized in that an injection mold comprises an upper mold component and a lower mold component, the upper mold component is connected above the lower mold component through a guide pillar, the upper mold component comprises an upper cover plate and a cavity upper mold, and the upper surface of the cavity upper mold is fixedly connected with the upper cover plate into a whole; the lower die assembly comprises a cavity lower die and a base, and the lower surface of the cavity lower die is fixedly connected with the base into a whole; more than one cavity can be formed between the lower surface of the cavity upper die and the upper surface of the cavity lower die; disposing a framework in a position corresponding to a framework end of the S-shaped rubber base body in the cavity, and disposing a spring in a position corresponding to a spring end of the S-shaped rubber base body; the S-shaped sealing ring with the framework embedded at one end and the spring embedded at the other end can be formed by injecting rubber into the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960459.9A CN110762116A (en) | 2019-10-10 | 2019-10-10 | Radial spherical plain bearing with large swing angle and large length-diameter ratio and sealing ring injection molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960459.9A CN110762116A (en) | 2019-10-10 | 2019-10-10 | Radial spherical plain bearing with large swing angle and large length-diameter ratio and sealing ring injection molding method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110762116A true CN110762116A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910960459.9A Pending CN110762116A (en) | 2019-10-10 | 2019-10-10 | Radial spherical plain bearing with large swing angle and large length-diameter ratio and sealing ring injection molding method thereof |
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| CN (1) | CN110762116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879568A (en) * | 2021-03-30 | 2021-06-01 | 安吉藤仓橡胶有限公司 | Fuel control valve sealing element and preparation method and processing device thereof |
-
2019
- 2019-10-10 CN CN201910960459.9A patent/CN110762116A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879568A (en) * | 2021-03-30 | 2021-06-01 | 安吉藤仓橡胶有限公司 | Fuel control valve sealing element and preparation method and processing device thereof |
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