CN210949637U - Separable rubber spherical hinge structure - Google Patents
Separable rubber spherical hinge structure Download PDFInfo
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- CN210949637U CN210949637U CN201921592549.9U CN201921592549U CN210949637U CN 210949637 U CN210949637 U CN 210949637U CN 201921592549 U CN201921592549 U CN 201921592549U CN 210949637 U CN210949637 U CN 210949637U
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Abstract
The utility model provides a separable rubber spherical hinge structure, which comprises a spherical hinge component, wherein the spherical hinge component is pressed on a hinge shaft by a peripheral fixed structure; the spherical hinge assembly comprises a plurality of spherical hinge bodies correspondingly arranged on the outer side of the hinge shaft; the spherical hinge body comprises an outer ring, an inner ring and a rubber body between the outer ring and the inner ring; the outer wall of the outer ring is attached to the inner wall of the fixed structure, and the inner wall of the inner ring is attached to the hinge shaft. The utility model discloses ball pivot structure adopts the disconnect-type structure in creating, and manufacturing process is simpler, the commonality is good. Between the fixed knot in the ball pivot body outside constructs and the ball pivot axle, through the hole shoulder that corresponds the setting and the biggest space of shaft shoulder structure restriction ball pivot axle swing and displacement, guaranteed the buffering damping performance of ball pivot, and effectively avoided the rubber body premature failure, the ball pivot durability is good, and stability is high.
Description
Technical Field
The invention belongs to the technical field of buffering and damping, and particularly relates to a separable rubber spherical hinge structure.
Background
The existing rubber ball hinge adopts an integral structure and generally comprises a metal outer sleeve, a metal core shaft, rubber and the like, wherein the rubber is generally positioned between the metal core shaft and the metal outer sleeve in a cylindrical shape, and the metal outer sleeve is connected with the metal core shaft together after vulcanization. In order to prolong the service life of the rubber ball hinge, the tensile stress of the rubber in use needs to be avoided, circumferential rolling needs to be carried out during production, and the rubber is ensured to be in a prepressing state during use. The integral rubber ball hinge has complicated process, needs precise quality control, is difficult to adjust rubber prepressing after being manufactured, and has determined the structures and the shapes of the metal outer sleeve and the metal core shaft, which limit the use of the rubber ball hinge.
Disclosure of Invention
In view of this, the present invention provides a separable rubber ball hinge structure to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a separable rubber spherical hinge structure comprises a spherical hinge component, wherein the spherical hinge component is pressed on a hinge shaft by a peripheral fixing structure;
the spherical hinge assembly comprises a plurality of spherical hinge bodies correspondingly arranged on the outer side of the hinge shaft;
the spherical hinge body comprises an outer ring, an inner ring and a rubber body between the outer ring and the inner ring; the fixed knot constructs and all is equipped with the hole shoulder structure along the both ends of hinge axial direction, corresponds the hole shoulder on the hinge and is equipped with the shaft shoulder structure, and leaves the buffering clearance between hole shoulder structure and the shaft shoulder structure.
Further, the middle part of the rubber body is provided with a notch which is axially communicated with the rubber body, and after the spherical hinge is loaded, the rubber body is allowed to be extruded and deformed to the notch.
Further, the rubber body is formed between the inner ring and the outer ring through a vulcanization process.
Further, the fixed knot constructs including two corresponding lamella cramps, and these two cramps pass through the connecting piece fixed back, compress tightly the ball pivot body.
Furthermore, the hooping piece is of an omega-shaped structure, connecting lugs are arranged on two sides of the hooping piece, and connecting holes are respectively arranged on the connecting lugs.
Further, the connecting piece adopts a screw.
Furthermore, the width of the outer ring is consistent with the distance between the two hole shoulder structures on the fixed structure, so that the displacement without play along the axial direction is ensured.
Furthermore, the width of the inner ring is consistent with the distance between two shaft shoulder structures on the hinge shaft, so that the displacement without play along the axial direction is ensured.
Furthermore, the two axial sides of the rubber body are both concave in the structure of the holding shell, and a deformation gap is reserved between the rubber body and the outer edge of the holding shell.
Compared with the prior art, the invention has the following advantages:
(1) the ball hinge structure in the invention adopts a separated structure, the ball hinge does not need circumferential rolling in the manufacturing process, the rubber prepressing state in the installation is adjustable, the installed structural components can be better matched, the universality is good, the manufacturing process is simpler, and the cost is lower.
(2) Between the fixed knot in the ball pivot body outside constructs and the ball pivot axle, through the hole shoulder that corresponds the setting and the biggest space of shaft shoulder structure restriction ball pivot axle swing and displacement, the buffering shock attenuation performance of ball pivot has been guaranteed, owing to the compression capacity when the contact through shaft shoulder structure and hole shoulder structure has restricted the collision of rubber and structure, ensure when the loading, ball pivot department produces flexible buffering by rubber earlier, along with the aggravation of loading, it is spacing to produce the rigidity again, the rubber body premature failure has effectively been avoided, the ball pivot durability is good, and stability is high.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the present invention;
FIG. 3 is a cross-sectional view of the invention;
FIG. 4 is a schematic structural diagram of a spherical hinge body according to an embodiment of the present invention;
FIG. 5 is a schematic view of an embodiment of the present invention in which the inner ring and the outer ring are not concentric;
FIG. 6 is a schematic diagram illustrating the curvature or bending radius of the inner ring and the outer ring when they are designed to be different according to the embodiment of the present invention;
FIG. 7 is a partial cross-sectional view of a structure in use in an embodiment of the invention;
fig. 8 is a full sectional view of the inventive embodiment in use.
Description of reference numerals:
1-a spherical hinge assembly; 2-a fixed structure; 3-hinging the shaft; 4-the outer loop; 5-inner ring; 6-a rubber body; 7-a bore shoulder structure; 8-shaft shoulder structure; 9-a buffer gap; 10-notch; 11-a clasp; 12-a connector; 13-connecting lugs; 14-deformation gap; 15-shaping the supporting part; 16-a buffer; 17-a recess portion; 18-fillet structure; 19-buffer space; 20-spherical hinge body.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A separable rubber ball hinge structure is disclosed, as shown in figures 1 to 4, and comprises a ball hinge assembly 1, wherein the ball hinge assembly is pressed on a hinge shaft 3 by a peripheral fixing structure 2;
the spherical hinge component comprises a plurality of spherical hinge bodies 20 correspondingly arranged on the outer sides of the hinge shafts;
the spherical hinge body comprises an outer ring 4, an inner ring 5 and a rubber body 6 between the outer ring and the inner ring;
fixed knot constructs all to be equipped with hole shoulder structure 7 along hinge axial direction's both ends, it is equipped with shaft shoulder structure 8 to correspond the hole shoulder on the hinge, and leave buffering clearance 9 between hole shoulder structure and the shaft shoulder structure, this buffering clearance is the biggest space (volume) of ball pivot swing and displacement, the buffering shock attenuation performance of ball pivot has both been guaranteed, and simultaneously, still spacing to the momentum of ball pivot itself, compressive capacity when the collision of contact restriction rubber through shaft shoulder and hole shoulder structure and structure, the rubber body early damage has been avoided, the performance of ball pivot has been guaranteed for a long time, and the durability is good, and stability is high.
It should be noted that, as for the arrangement form of the spherical hinge assemblies, two spherical hinge assemblies may be symmetrically arranged, or as shown in fig. 7 and 8, the number of the spherical hinge bodies on both sides of the hinge shaft is different, and the spherical hinge assemblies may be arranged according to actual needs. When the quantity of the spherical hinge bodies on the two sides of the spherical hinge shaft is different, the total width of each spherical hinge body on the two sides of the spherical hinge shaft is the same, and the stable and reliable structure is ensured.
Generally, the width of the outer ring is consistent with the distance between two hole shoulder structures on the fixed structure, so that the outer ring is ensured to have no displacement along the axial direction. The width of the inner ring is consistent with the distance between the two shaft shoulder structures on the hinge shaft, so that the displacement without play along the axial direction is ensured.
The rubber body is formed between the inner ring and the outer ring through a vulcanization process. The inner ring and the outer ring form an open structure, and the inner ring and the outer ring are firmly bonded by a rubber body. A notch 10 is arranged in the middle of the rubber body and penetrates through the rubber body along the axial direction, and after the spherical hinge is loaded, the rubber body is allowed to be extruded and deformed to the notch.
In the ball joint structure, the ball joint is generally in a butt-joint type, and the ball joint is hooped on the ball joint shaft through an outer fixing structure. The fixing structure comprises two corresponding clamping pieces 11 which are fixed through a connecting piece 12 and then compress the spherical hinge body. Typically, the connectors are screws or bolts. The concave structure of each part of the hooping piece is smaller than or equal to a semicircle, the two parts of the hooping piece are fixedly connected through bolts or screws, the pre-compression state of rubber is guaranteed to meet the use requirement, and the bolt pre-tightening force can be rapidly adjusted according to different use requirements, so that the rubber pre-compression state is adjusted, and the operation is very simple and convenient.
In an alternative embodiment, the fastening member is in an omega-shaped configuration, and has engaging lugs 13 on both sides thereof, and engaging holes respectively formed in the engaging lugs.
The outer ring and the inner ring form a holding shell structure, two sides of the rubber body are recessed in the holding shell structure, and a deformation gap 14 (namely, a deformation space is reserved between the rubber body and the outer edge of the holding shell).
In an alternative embodiment, the rubber buffer body comprises a shaped support portion 15 in the middle and buffer portions 16 on both sides, and the gap formed is omega-shaped and comprises two bilaterally symmetrical groove portions 17, which are both arc-shaped groove structures, and the groove walls and the shaped support portion and the buffer portions are smoothly transited.
One side corner that outer ring was pressed close to above-mentioned buffering portion all is fillet structure 18, and when the rubber body was loaded, can extrude buffering portion to breach partial compression, stress concentration can be avoided in fillet structural design, simultaneously, has the guide effect to the deformation direction of buffering portion.
The arc length that above-mentioned rubber buffering body formed is less than the arc length that shell structure formed, promptly, the terminal indent of rubber buffering body has formed buffering space 19 in shell structure, and the ball pivot structure is under the installation user state, and the structure can not restrict the deformation of rubber buffering body, guarantees the effect of buffering deformation.
In addition, the arc section formed by the shell structure formed by the inner ring and the outer ring has the length less than or equal to 1/2 circles, so that after the spherical hinge is installed, the compression amount during pre-compression can be adjusted according to actual conditions, equipment can be better matched, and the performance of the spherical hinge can be exerted.
It should be noted that, the ball pivot structure can be widely applied to rubber track traveling systems, usually, wheel train mounting shoulders can be arranged on two sides of the ball pivot shaft, and it is ensured that the mounted driving wheels (or tensioning wheels, loading wheels and the like) are positioned through the wheel train mounting shoulders, so that a certain gap is left between the wheels and the fixed structure, a certain swing space of the ball pivot relative to the ball pivot shaft is ensured, and the self-adaptive adjustment capability of the whole wheel train is stronger.
In an alternative embodiment, the outer wall of the outer ring abuts against the inner wall of the fixing structure, and it should be noted that the abutting is not a complete abutting, and a stable attachment relationship is generated between the main portion of the outer ring and the fixing structure. The inner wall of the inner ring is attached to the hinge shaft, and similarly, the attachment referred to herein is not a complete attachment, and a stable attachment relationship is generated between the main body part of the outer ring and the fixed structure.
In fact, the outer ring and the inner ring in the invention are preferably made of thin plates (or thin-walled structural members), and may be metal rings with certain ductility or elasticity, and in order to achieve the purpose of variable rigidity, a gap may be left in a partial region between the outer ring and the inner wall of the fixed structure or between the inner ring and the outer surface of the ball hinge shaft, so as to serve as a (compression) deformation space for buffering after the ball hinge is loaded.
The following provides a variable stiffness method for the spherical hinge structure, as shown in fig. 5 and 6, a spherical hinge body in the spherical hinge structure is designed in one or more of the following forms:
1. the outer ring and the inner ring are arranged in a non-concentric mode, when the circle center position of the inner ring is closer to the inner ring relative to the circle center position of the outer ring, rubber on two sides is relatively thick, and the compression amount of the rubber on the two sides during assembling and prepressing can be increased; when the circle center position of the outer ring is closer to the inner ring relative to the circle center position of the inner ring, the opposite is realized.
2. The inner diameter of the inner ring can be larger than or smaller than the diameter of the shaft-shaped part matched with the spherical hinge shaft, when the inner diameter is larger than the diameter, the compression amount of rubber on two sides during assembling prepressing can be reduced, and when the inner diameter is smaller than the diameter, the opposite is true.
3. The outer diameter of the outer ring can be larger than or smaller than the inner diameter of the concave structure of the shell for mounting the spherical hinge, when the outer diameter is larger than the inner diameter, the compression amount of rubber on two sides during assembling prepressing can be increased, and when the outer diameter is smaller than the inner diameter, the compression amount is opposite.
4. The inner ring of the spherical hinge can adopt a thin-wall form with a smooth curved surface and a thickened surface, and the curvature or the bending radius of each part of the curved surface can be different, so that the rubber of each part of the spherical hinge has different precompression and different rigidity after being assembled.
5. The outer ring of the spherical hinge can adopt a thin-wall form with a smooth curved surface and a thickened surface, and the curvature or the bending radius of each part of the curved surface can be different, so that the rubber of each part of the spherical hinge has different pre-compression amount and different rigidity after being assembled.
6. The thickness distribution of the rubber body is changed, for example, a gap exists between a certain part of the rubber body and the outer ring or between the certain part of the rubber body and the inner ring, after the rubber ball hinge is installed, the rubber at the gap part is generally not compressed or the pre-compression amount is less, and then the variable-rigidity design of the ball hinge is realized.
In an optional embodiment, the middle of the buffer interlayer is narrow, and two sides of the buffer interlayer are wide, and the rubber buffer body is formed in the buffer interlayer in a vulcanization mode. In another alternative embodiment, the middle part of the buffer interlayer is wide, and two sides of the buffer interlayer are narrow, and the rubber buffer body is vulcanized and molded in the buffer interlayer.
The ball hinge structure in the invention adopts a separated structure, the ball hinge does not need circumferential rolling in the manufacturing process, the rubber prepressing state in the installation process is adjustable, the prepressing compression amount can be quickly adjusted according to different use requirements, the installed structural component can be better matched, the universality is good, the manufacturing process is simpler, and the cost is lower.
Between the fixing structure on the outer side and the spherical hinge shaft, the maximum space of the swing and displacement of the spherical hinge shaft is limited through the correspondingly arranged hole shoulder and shaft shoulder structures, and the buffering and damping performance of the spherical hinge is guaranteed.
Because the contact through shaft shoulder structure and hole shoulder structure has restricted the compressive capacity when the collision of rubber and structure, ensures when the loading, and ball pivot department produces flexible buffering by rubber earlier, and along with the aggravation of loading, can produce the rigidity again spacing, has effectively avoided the too early damage of rubber body, and the ball pivot durability is good, and stability is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a detachable rubber ball pivot structure which characterized in that: the spherical hinge assembly is pressed on a hinge shaft by a peripheral fixing structure;
the spherical hinge assembly comprises a plurality of spherical hinge bodies correspondingly arranged on the outer side of the hinge shaft;
the spherical hinge body comprises an outer ring, an inner ring and a rubber body between the outer ring and the inner ring;
the fixed knot constructs and all is equipped with the hole shoulder structure along the both ends of hinge axial direction, corresponds the hole shoulder on the hinge and is equipped with the shaft shoulder structure, and leaves the buffering clearance between hole shoulder structure and the shaft shoulder structure.
2. The separable rubber ball hinge structure according to claim 1, wherein: the middle part of the rubber body is provided with a notch which is communicated with the rubber body along the axial direction.
3. The separable rubber ball hinge structure according to claim 1, wherein: the rubber body is formed between the inner ring and the outer ring through a vulcanization process.
4. The separable rubber ball hinge structure according to claim 1, wherein: the fixing structure comprises two corresponding clamping pieces, and the two clamping pieces compress the spherical hinge body after being fixed through the connecting piece.
5. The separable rubber ball hinge structure according to claim 4, wherein: the hooping piece is of an omega-shaped structure, connecting lugs are arranged on two sides of the hooping piece, and connecting holes are respectively arranged on the connecting lugs.
6. The separable rubber ball hinge structure according to claim 4, wherein: the connecting piece adopts a screw.
7. The separable rubber ball hinge structure according to claim 1, wherein: the width of the outer ring is consistent with the distance between the two hole shoulder structures on the fixed structure.
8. The separable rubber ball hinge structure according to claim 1 or 7, wherein: the width of the inner ring is consistent with the distance between the two shoulder structures on the hinge shaft.
9. The separable rubber ball hinge structure of claim 8, wherein: the outer ring and the inner ring form a holding shell structure, two axial sides of the rubber body are both recessed in the holding shell structure, and a deformation gap is reserved between the rubber body and the outer edge of the holding shell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592549.9U CN210949637U (en) | 2019-09-24 | 2019-09-24 | Separable rubber spherical hinge structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592549.9U CN210949637U (en) | 2019-09-24 | 2019-09-24 | Separable rubber spherical hinge structure |
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| CN210949637U true CN210949637U (en) | 2020-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513416A (en) * | 2019-09-24 | 2019-11-29 | 履地科技(天津)有限公司 | A kind of detachable rubber bushing structure and its rigidity-changing method |
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2019
- 2019-09-24 CN CN201921592549.9U patent/CN210949637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513416A (en) * | 2019-09-24 | 2019-11-29 | 履地科技(天津)有限公司 | A kind of detachable rubber bushing structure and its rigidity-changing method |
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