CN215409749U - Universal ball with sealing structure - Google Patents
Universal ball with sealing structure Download PDFInfo
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- CN215409749U CN215409749U CN202120687744.0U CN202120687744U CN215409749U CN 215409749 U CN215409749 U CN 215409749U CN 202120687744 U CN202120687744 U CN 202120687744U CN 215409749 U CN215409749 U CN 215409749U
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Abstract
The utility model discloses a universal ball with a sealing structure, which comprises a main body assembly and a sealing body, wherein the main body assembly comprises a base, a main ball and a cover plate, the base is provided with an accommodating cavity, the sealing body has elasticity, the sealing body integrally wraps the main body assembly, a second round hole for the main ball to extend out is formed in the sealing body, and the hole wall of the second round hole is in sealing fit with the main ball. In this application, the whole parcel of seal is in main part assembly's the outside and with the sealed laminating of main ball, the sealing member has certain elasticity, can form the buffering to main part assembly, protection and sealing action to form one deck "protection clothing" in the main part assembly outside, cause the damage to main part assembly when avoiding external sharp hard object or ball to drop, effectively prevent moreover that debris such as dust from entering into to holding the intracavity, make main part assembly operation stable, smooth and easy, improve universal ball's life.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment, and particularly relates to a universal ball with a sealing structure.
Background
The universal ball is a common mechanical device in life, can well support a heavy object and is convenient for the heavy object to move. The existing universal ball comprises a base, a main ball, a cover plate and other parts, and the main ball is directly sealed and fixed by the cover plate. However, in the long-time use process, external dust or other impurities easily enter the base from the gap between the main ball and the cover plate, so that the interference is caused on the rolling of the main ball, and the normal use of the equipment is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a universal ball with a sealing structure, which is used for solving at least one technical problem.
The technical scheme adopted by the utility model is as follows:
a ball transfer bearing with a seal structure, comprising:
the main body assembly comprises a base, a main ball and a cover plate, wherein the base is provided with an accommodating cavity, the main ball is arranged in the accommodating cavity and can freely rotate, the main ball extends out of the accommodating cavity, and the cover plate covers the accommodating cavity and is provided with a first round hole for the main ball to extend out;
the sealing body is elastic, the sealing body integrally wraps the main body assembly, a second round hole for the main ball to extend out is formed in the sealing body, and the hole wall of the second round hole is in sealing fit with the main ball.
Furthermore, the sealing body is integrally cast and molded by polyurethane.
Further, a gap is formed between the hole wall of the first round hole and the main ball, and the sealing body part extends into the gap and seals the gap.
Furthermore, a first inclined plane which faces the accommodating cavity and extends away from the main ball is formed on the hole wall of the first round hole, a second inclined plane which is matched with the first inclined plane is formed on the part, extending into the gap, of the sealing body, and the first inclined plane is abutted to the second inclined plane.
Further, the main body assembly further comprises a middle cover, the middle cover is located in the containing cavity and is sealed and covered by the cover plate, and the part, extending into the gap, of the sealing body is abutted to the middle cover.
Further, the surface of the sealing body, which is abutted against the middle cover, is a flat surface.
Further, the part of the sealing body extending into the gap forms an R-shaped snap ring.
Furthermore, the main body assembly further comprises an inner core and a plurality of auxiliary balls, the inner core is fixed in the accommodating cavity, an assembly space is formed among the inner core, the cavity wall of the accommodating cavity, the middle cover and the main balls, and the plurality of auxiliary balls are filled in the assembly space.
Further, the cover plate is detachably connected with the base.
Further, a ring rib is formed on the circumferential outer side of the seal body.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that:
in this application, the whole parcel of seal is in main part assembly's the outside and with the sealed laminating of main ball, the sealing member has certain elasticity, can form the buffering to main part assembly, protection and sealing action to form one deck "protection clothing" in the main part assembly outside, cause the damage to main part assembly when avoiding external sharp hard object or ball to drop, effectively prevent moreover that debris such as dust from entering into to holding the intracavity, make main part assembly operation stable, smooth and easy, improve universal ball's life. The seal in this application is by the integrative casting moulding of polyurethane material, and polyurethane material has certain elasticity and has better plasticity, makes things convenient for the processing preparation, and convenient for material collection moreover, and the economic nature is better. The seal adopts polyurethane material an organic whole to pour to make the seal have the integral type structure, effectively improve the holistic structural strength of seal, make ball stable in structure, facilitate the use, the fashioned processing mode of integrative pouring moreover can also effectively improve the holistic processing preparation efficiency of equipment, easy operation is convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a ball transfer unit with a sealing structure according to the present application.
FIG. 2 is a schematic structural diagram of a main assembly of the ball transfer unit of FIG. 1.
FIG. 3 is a schematic cross-sectional view of the ball transfer unit of FIG. 1 taken along a plane containing the central axis.
Fig. 4 is a cross-sectional structural view of the body assembly of fig. 2 taken along a plane in which the central axis lies.
The ball sealing structure comprises a base 1, a main ball 2, a cover plate 3, a first round hole 4, a sealing body 5, a second round hole 6, a gap 7, a first inclined plane 8, a second inclined plane 9, a middle cover 10, an inner core 11, an auxiliary ball 12, an assembly space 13 and a ring rib 14.
Detailed Description
In order to more clearly explain the overall concept of the utility model, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1 to 4, the present invention provides a ball gimbal with a sealing structure, comprising:
the main body assembly comprises a base 1, a main ball 2 and a cover plate 3, wherein the base 1 is provided with an accommodating cavity, the main ball 2 is arranged in the accommodating cavity and can freely rotate, part of the main ball 2 extends out of the accommodating cavity, and the cover plate 3 covers the accommodating cavity and is provided with a first round hole 4 for the part of the main ball 2 to extend out;
the sealing body 5 is elastic, the sealing body 5 integrally wraps the main body assembly, the sealing body 5 is provided with a second round hole 6 for the main ball 2 to partially extend out, and the hole wall of the second round hole 6 is in sealing fit with the main ball 2.
In this application, the whole parcel of seal 5 is in main part assembly's the outside and with the sealed laminating of main ball 2, the sealing member has certain elasticity, can form the buffering to main part assembly, protection and sealing action, thereby form one deck "protection clothing" in the main part assembly outside, cause the damage to main part assembly when avoiding external sharp hard object or ball to drop, and effectively prevent debris such as dust from entering into to holding the intracavity, make main part assembly operation stable, smooth and easy, improve universal ball's life.
In the processing and molding of the sealing body 5, the sealing body 5 is integrally cast and molded of a polyurethane material. The polyurethane material has certain elasticity and better plasticity, is convenient to process and manufacture, is convenient to obtain materials and has better economy. Seal 5 adopts polyurethane material an organic whole to pour to make seal 5 have the integral type structure, effectively improve the holistic structural strength of seal 5, make ball stable in structure, facilitate the use, the fashioned processing mode of integrative pouring moreover can also effectively improve the holistic processing preparation efficiency of equipment, easy operation is convenient.
During manufacturing, the main body assembly is firstly assembled and molded, a mold is built, a polyurethane casting material is configured, then the balls are integrally cast and wrapped in the polyurethane casting material, and demolding and decorating are carried out after molding. In addition, the polyurethane material still has better anticorrosive nature, and the ball is whole to be wrapped up with polyurethane to improve the anticorrosive ability of ball greatly, effectively increased the holistic application range of equipment, made the ball have fine suitability.
Further, a gap 7 is formed between the hole wall of the first round hole 4 and the main ball 2, and the sealing body 5 partially extends into the gap 7 and seals the gap 7. As shown in fig. 2 to 4, the gap 7 fills the assembly space 13 in the part of the containing cavity forming the sealing body 5, so that the main body component and the sealing body 5 form a dog-tooth staggered structure, the interaction force between the main body component and the sealing body is increased, and the stability and firmness of the assembly and fixation of the sealing body 5 are effectively improved.
5 parts of seal stretch into to holding the intracavity and seal up clearance 7, can improve its leakproofness to holding the chamber, make and hold the chamber and have better sealed effect, prevent effectively that impurity such as dust from entering into to holding the intracavity and causing the influence to the even running of ball, improve the stability that the ball used.
Further, as shown in fig. 3 and 4, a first inclined surface 8 extending toward the accommodating cavity and away from the main ball 2 is formed on a hole wall of the first circular hole 4, a second inclined surface 9 adapted to the first inclined surface 8 is formed on a portion of the sealing body 5 extending into the gap 7, and the first inclined surface 8 abuts against the second inclined surface 9.
First inclined plane 8 can get into the effect of the part of clearance 7 to the seal 5 and play the location direction, and first inclined plane 8 slant declination (according to the direction of the drawing), makes seal 5 stretch into to the part of clearance 7 and form with first inclined plane 8 assorted second inclined plane 9, can improve the fixed stability of seal 5 assembly on the one hand, and on the other hand makes apron 3 form the extrusion to seal 5, has increased the effort of seal 5 to main ball 2 to the leakproofness of seal 5 to main ball 2 has been improved.
Further, the main body assembly further comprises a middle cover 10, the middle cover 10 is located in the accommodating cavity and is hermetically covered by the cover plate 3, and the part, extending into the gap 7, of the sealing body 5 abuts against the middle cover 10.
As shown in fig. 3 and 4, the portion of the sealing body 5 extending into the gap 7 abuts against the middle cover 10, so that the sealing body 5 presses the middle cover 10 to improve the stability of fixing the middle cover 10, the whole structure of the device is more stable, and the sealing member seals the middle cover 10 to improve the sealing performance of the middle cover 10 to the accommodating cavity.
Further, the surface of the sealing body 5 abutting against the middle cover 10 is a flat surface. As shown in FIG. 3, the sealing body 5 abuts against the middle cover 10 by a flat surface, so that the middle cover 10 can be uniformly and stably stressed, the middle cover 10 is prevented from deviating due to overlarge local stress, and the normal use of the equipment is ensured. In addition, the sealing body 5 and the surface of well lid 10 butt are flat face and make the shaping for convenient processing, and the end face turning that will well lid 10 orientation apron 3 levels, and then the pouring can the shaping, and easy operation is convenient, improve equipment's processing preparation efficiency.
Further, the part of the sealing body 5 extending into the gap 7 forms an R-shaped snap ring. As shown in fig. 3, the whole part of the sealing body 5 extending into the containing cavity is of an R-shaped snap ring structure, so that the sealing body 5 is integrally wrapped outside the base 1 and is fixedly clamped with the cover plate 3 and the main ball 2, and the sealing body 5 is more stably combined with the main body assembly. And the sealing body 5 has certain elasticity, so that the clamping ring can be conveniently clamped, and the whole assembly is simple, convenient and stable.
As for the structure of the ball, as shown in fig. 3 and 4, the main body assembly further includes an inner core 11 and a plurality of auxiliary balls 12, the inner core 11 is fixed to the accommodating cavity, an assembly space 13 is formed between the inner core 11 and the cavity wall of the accommodating cavity, between the middle cover 10 and the main ball 2, and the plurality of auxiliary balls 12 are filled in the assembly space 13.
Further, the cover plate 3 is detachably connected with the base 1. In this application, apron 3 can dismantle with base 1 and be connected, conveniently holds the assembly of each subassembly such as main ball 2, well lid 10 in the chamber and fixes. Specifically, the outer edge of the cover plate 3 is provided with an external thread, and the accommodating cavity wall of the base 1 is provided with an internal thread matched with the external thread, so that the cover plate 3 is fixedly connected with the base 1 through the thread.
Further, as shown in fig. 1 and 3, a circumferential rib 14 is formed on the outer side of the seal body 5 in the circumferential direction. The annular rib 14 formed in the peripheral direction of the seal body 5 can facilitate the assembly of the universal ball to the scraper device, so that the stability and firmness of the assembly and fixation of the universal ball are improved. Specifically, be provided with the recess with ring muscle looks adaptation in the pilot hole on the scraper blade, during the assembly with universal ball put into the pilot hole and go into with the ring muscle card to the recess in can, easy operation, installation convenient to use.
The method can be realized by adopting or referring to the prior art in places which are not described in the utility model.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A universal ball with a sealing structure is characterized by comprising:
the main body assembly comprises a base, a main ball and a cover plate, wherein the base is provided with an accommodating cavity, the main ball is arranged in the accommodating cavity and can freely rotate, the main ball extends out of the accommodating cavity, and the cover plate covers the accommodating cavity and is provided with a first round hole for the main ball to extend out;
the sealing body is elastic, the sealing body integrally wraps the main body assembly, a second round hole for the main ball to extend out is formed in the sealing body, and the hole wall of the second round hole is in sealing fit with the main ball.
2. The ball joint according to claim 1, wherein the sealing body is integrally cast from polyurethane.
3. The ball joint according to claim 1 or 2, wherein a gap is formed between the hole wall of the first circular hole and the main ball, and the sealing body portion extends into the gap and seals the gap.
4. The ball transfer bearing with sealing structure according to claim 3, wherein the hole wall of said first circular hole is formed with a first inclined surface extending toward said housing cavity and away from said main ball, and a portion of said sealing body extending into said gap is formed with a second inclined surface adapted to said first inclined surface, and said first inclined surface abuts against said second inclined surface.
5. The ball transfer bearing with seal structure according to claim 3, wherein said main body assembly further comprises a middle cover, said middle cover is located in said housing chamber and is sealed and covered by said cover plate, and a portion of said sealing body extending into said gap abuts against said middle cover.
6. The ball bearing with a sealing structure according to claim 5, wherein the surface of the sealing body abutting against the middle cover is a flat surface.
7. The ball transfer bearing with seal structure according to claim 3, wherein a portion of said seal body extending into said gap forms an R-shaped snap ring.
8. The ball transfer bearing with sealing structure according to claim 6, wherein said main body assembly further comprises an inner core and a plurality of auxiliary balls, said inner core is fixed to said accommodating cavity, an assembly space is formed between said inner core and the cavity wall of said accommodating cavity, said middle cover and said main balls, and said plurality of auxiliary balls are filled in said assembly space.
9. The ball transfer bearing with sealing structure of claim 8, wherein said cover plate is detachably connected to said base.
10. The ball joint according to claim 1, wherein a circumferential outer side of the sealing body is formed with a circumferential rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120687744.0U CN215409749U (en) | 2021-04-02 | 2021-04-02 | Universal ball with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120687744.0U CN215409749U (en) | 2021-04-02 | 2021-04-02 | Universal ball with sealing structure |
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| Publication Number | Publication Date |
|---|---|
| CN215409749U true CN215409749U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120687744.0U Active CN215409749U (en) | 2021-04-02 | 2021-04-02 | Universal ball with sealing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114803368A (en) * | 2022-04-18 | 2022-07-29 | 山东灵犀院科技发展股份有限公司 | Rolling element with good sealing performance |
| CN114803369A (en) * | 2022-04-18 | 2022-07-29 | 山东灵犀院科技发展股份有限公司 | Rolling element with stable sealing performance |
-
2021
- 2021-04-02 CN CN202120687744.0U patent/CN215409749U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114803368A (en) * | 2022-04-18 | 2022-07-29 | 山东灵犀院科技发展股份有限公司 | Rolling element with good sealing performance |
| CN114803369A (en) * | 2022-04-18 | 2022-07-29 | 山东灵犀院科技发展股份有限公司 | Rolling element with stable sealing performance |
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