Double-spherical-surface trunnion structure

Abstract

The utility model discloses a double-spherical-surface trunnion hinge structure which comprises a lower spherical hinge seat, a lower spherical hinge seat, an upper spherical hinge seat, an upper spherical hinge seat, an upper spherical hinge seat and an upper spherical hinge seat, wherein a lower spherical hinge accommodating groove is formed in the top surface of the lower spherical hinge seat; the upper spherical hinge base is located above the lower spherical hinge base, and an upper spherical hinge containing groove is formed in the bottom face of the upper spherical hinge base; the lower spherical semi-surface base is mounted in a lower spherical hinge accommodating groove of the lower spherical hinge seat, so that the lower spherical semi-surface base horizontally rotates in the lower spherical hinge accommodating groove; the upper ball head is mounted in an upper ball hinge accommodating groove of the upper ball hinge seat, so that the upper ball hinge seat horizontally rotates and vertically rotates around the upper ball head; the connecting stand column is located between the lower ball half face base and the upper ball head, the upper end of the connecting stand column is connected with the upper ball head, and the lower end of the connecting stand column is connected with the top face of the lower ball half face base. The utility model has the advantages of safety, reliability, flexibility in rotation, strong bearing capacity, strong durability and easiness in maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technology field especially relates to a double spherical surface hinge structure. BACKGROUND

[0002] Hinge is a kind of mechanical connecting piece, usually used in structural engineering to connect different components, so that they can rotate or turn within a certain range, and has more applications in the field of mechanical equipment.

[0003] Hinge has important application in large-span tide sluice, and its engineering reliability is one of important factors restricting the type of large-span tide sluice. Taking the Holland Maasvlakte tide sluice as an example, one of its core mechanical components is a huge spherical hinge structure, the diameter of the spherical hinge structure is about 10m, and the weight of a single one is about 680 tons, which is the largest spherical hinge in the world. When the hinge structure is applied in large-span tide sluice, the following functions need to be met simultaneously: rotating support, i.e. allowing the gate to freely rotate to the closed or open position when needed, including horizontal rotation and certain vertical rotation; bearing load during tide, i.e. the hinge needs to bear external loads such as gate and water pressure; adapting to movement and deformation, the gate will produce complex mechanical response when opening and closing, and the hinge needs to provide flexibility to prevent stress concentration; high durability requirement, large tide sluice is generally designed to be used for more than 100 years, and the hinge structure needs to meet the 100-year use requirement. Once the large-span tide sluice fails, it will cause serious disaster, so the reliability and safety of the hinge structure are required to be higher.

[0004] For different large-span gate types, there should be hinge structures matching with their movement and load bearing. At present, large-span gate hinge structures suitable for large-angle horizontal rotation and capable of adapting to up and down fluctuations and horizontal swinging while bearing lateral and vertical loads are relatively rare, and a new hinge structure that is safe and reliable, flexible in rotation, strong in load bearing capacity, durable and easy to maintain is urgently needed.

[0005] Therefore, the applicant finds a method to solve the above problems through beneficial exploration and research, and the technical scheme to be introduced below is generated in this background. CONTENT OF THE UTILITY MODEL

[0006] The technical problem to be solved by the utility model lies in providing a double spherical surface hinge structure that is safe and reliable, flexible in rotation, strong in load bearing capacity, durable and easy to maintain in view of the deficiencies of the prior art.

[0007] The technical problem to be solved by the utility model can be realized by adopting the following technical scheme:

[0008] A double spherical surface hinge structure comprises:

[0009] A lower spherical hinge seat, a top surface of the lower spherical hinge seat is provided with a lower spherical hinge accommodating groove;

[0010] An upper spherical hinge seat located above the lower spherical hinge seat, a bottom surface of the upper spherical hinge seat is provided with an upper spherical hinge accommodating groove;

[0011] A lower spherical half-face base, the lower spherical half-face base is installed in the lower spherical hinge accommodating groove of the lower spherical hinge seat, so that the lower spherical half-face base rotates horizontally in the lower spherical hinge accommodating groove;

[0012] An upper spherical head, the upper spherical head is installed in the upper spherical hinge accommodating groove of the upper spherical hinge seat, so that the upper spherical hinge seat rotates horizontally and vertically around the upper spherical head; and

[0013] A connecting column, the connecting column is located between the lower spherical half-face base and the upper spherical head, an upper end of the connecting column is connected with the upper spherical head, and a lower end of the connecting column is connected with a top surface of the lower spherical half-face base.

[0014] In an embodiment of the utility model, the lower spherical half-face base includes bottom support spherical surface part, side support cylindrical surface part and cylindrical shaft neck part which are stacked and arranged coaxially from bottom to top, the outer circumferential surface of the bottom support spherical surface part is spherical surface which is matched with the bottom of the inner groove surface of the lower spherical hinge accommodating groove, the outer circumferential surface of the side support cylindrical surface part is cylindrical surface which is matched with the middle part of the inner groove surface of the lower spherical hinge accommodating groove, the diameter of the cylindrical shaft neck part is less than the diameter of the side support cylindrical surface part, and the top surface of the cylindrical shaft neck part is flush with the top surface of the lower spherical hinge accommodating groove.

[0015] In an embodiment of the utility model, a plurality of lower stoppers are circumferentially spaced apart on the outer circumferential side of the cylindrical shaft neck part in the lower spherical hinge accommodating groove, each lower stopper is connected with the lower spherical hinge seat by fastener and abuts on the top surface of the side support cylindrical surface part to prevent the lower spherical half-face base from being separated from the lower spherical hinge seat.

[0016] In an embodiment of the utility model, a first lubricating layer is arranged between the outer circumferential surface of the bottom support spherical surface part and the inner groove surface of the lower spherical hinge accommodating groove.

[0017] In an embodiment of the utility model, a plurality of upper stoppers are circumferentially spaced apart on the outer circumferential side of the upper spherical head in the upper spherical hinge accommodating groove, each upper stopper is connected with the upper spherical hinge seat by fastener and abuts on the outer circumferential surface of the upper spherical head to prevent the upper spherical head from being separated from the upper spherical hinge seat.

[0018] In an embodiment of the utility model, a second lubricating layer is arranged between the outer circumferential surface of the upper spherical head and the inner groove surface of the upper spherical hinge accommodating groove.

[0019] In one preferred embodiment of the present application, the outer circumferential surface of the connecting column is provided with a plurality of reinforcing ribs circumferentially and at intervals.

[0020] In one preferred embodiment of the present application, the lower spherical half base, the upper spherical head, the connecting column and the reinforcing ribs are made of steel structure.

[0021] Due to the adoption of the above technical solutions, the present application has the advantages that the upper spherical hinge base can rotate horizontally and deflect vertically and laterally, the lower spherical half base can rotate horizontally inside the lower spherical hinge base, and both can rotate horizontally, and the horizontal rotation is the main movement direction, the required maximum static friction torque for rotating the upper and lower hinges can be designed to control the rotation of one hinge, and the rotation of the other hinge can be used as a safety consideration under the limit, the rotation freedom is higher, the resistance is smaller, the durability is stronger, the stress performance is better, and the safety reliability is higher than those of the conventional spherical hinge structure in the application process. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description can be used to obtain other drawings without creative labor for those skilled in the art.

[0023] Figure 1 is a three-dimensional structure schematic view of the present application.

[0024] Figure 2 is a longitudinal sectional view of the present application.

[0025] Figure 3 is a three-dimensional structure schematic view of the present application (omitting upper and lower spherical hinge bases).

[0026] Figure 4 is a longitudinal sectional view of the present application (omitting upper and lower spherical hinge bases). DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the present application will be further described below in combination with specific drawings.

[0028] Referring to the drawings, a double spherical surface hinge structure is shown, which comprises a lower spherical hinge base 100, an upper spherical hinge base 200, a lower spherical half base 300, an upper spherical head 400 and a connecting column 500.

[0029] The top surface of the lower spherical hinge base 100 is provided with a lower spherical hinge accommodating groove 110.

[0030] The upper spherical hinge seat 200 is located above the lower spherical hinge seat 100, and the bottom surface of the upper spherical hinge seat 200 is provided with an upper spherical hinge accommodating groove 210.

[0031] The lower spherical half-bottom 300 is installed in the lower spherical hinge accommodating groove 110 of the lower spherical hinge seat 100, so that the lower spherical half-bottom 300 rotates horizontally in the lower spherical hinge accommodating groove 110. Specifically, the lower spherical half-bottom 300 includes a bottom supporting spherical surface part 310, a side supporting cylindrical surface part 320, and a cylindrical shaft neck part 330 which are sequentially stacked and coaxially arranged from bottom to top. The outer peripheral surface of the bottom supporting spherical surface part 310 is in the shape of a spherical surface, which is matched with the bottom of the inner groove surface of the lower spherical hinge accommodating groove 110 of the lower spherical hinge seat 100, the outer peripheral surface of the side supporting cylindrical surface part 320 is in the shape of a cylindrical surface, which is matched with the middle of the inner groove surface of the lower spherical hinge accommodating groove 110 of the lower spherical hinge seat 100, the diameter of the cylindrical shaft neck part 330 is smaller than that of the side supporting cylindrical surface part 320, and the top surface of the cylindrical shaft neck part 330 is flush with the top surface of the lower spherical hinge accommodating groove 110.

[0032] A plurality of lower stoppers 340 are circumferentially spaced apart on the outer peripheral side of the cylindrical shaft neck part 330 in the lower spherical hinge accommodating groove 110, each lower stopper 340 is connected with the lower spherical hinge seat 100 by a fastener such as a bolt and abuts against the top surface of the side supporting cylindrical surface part 320, so as to prevent the lower spherical half-bottom 300 from being separated from the lower spherical hinge seat 100, but does not affect the horizontal rotation of the lower spherical half-bottom 300 inside the lower spherical hinge seat 100. Of course, the lower stoppers 340 can also be arranged in a circumferentially dense manner.

[0033] In order to reduce the frictional resistance in the process of horizontal rotation, a lubricating layer is arranged between the outer peripheral surface of the bottom supporting spherical surface part 310 of the lower spherical half-bottom 300 and the inner groove surface of the lower spherical hinge accommodating groove 110, and the lubricating layer is made of a self-lubricating high molecular material. When maintenance is required, the lower stoppers 340 are removed, and then the lower spherical half-bottom 300 can be removed from the lower spherical hinge seat 100.

[0034] The upper spherical head 400 is installed in the upper spherical hinge accommodating groove 210 of the upper spherical hinge seat 200, so that the upper spherical hinge seat 200 rotates horizontally and vertically around the upper spherical head 400. A plurality of upper stoppers 410 are circumferentially spaced apart on the outer peripheral side of the upper spherical head 400 in the upper spherical hinge accommodating groove 210 of the upper spherical hinge seat 200, each upper stopper 410 is connected with the upper spherical hinge seat 200 by a fastener such as a bolt and abuts against the outer peripheral surface of the upper spherical head 400, so as to prevent the upper spherical head 400 from being separated from the upper spherical hinge seat 200, but does not affect the horizontal rotation and vertical rotation of the upper spherical hinge seat 200 around the upper spherical head 400.

[0035] In order to reduce the frictional resistance of the rotating process, a lubricating layer is arranged between the outer circumferential surface of the upper ball head 400 and the inner groove surface of the upper ball hinge accommodating groove 210, and the lubricating layer is made of a self-lubricating polymer material. When maintenance is required, the upper stopper 410 is removed, and the upper ball head 400 can be removed from the upper ball hinge seat 200.

[0036] The connecting column 500 is arranged between the lower ball half base 300 and the upper ball head 400, and the upper end of the connecting column 500 is connected with the upper ball head 400, and the lower end of the connecting column 500 is connected with the top surface of the lower ball half base 300. A plurality of reinforcing ribs 510 are arranged on the outer circumferential surface of the connecting column 500 in a circumferential direction, and the side surface of each reinforcing rib 510 is connected with the outer circumferential surface of the connecting column 500, and the bottom surface of each reinforcing rib 510 is connected with the top surface of the lower ball half base 300.

[0037] The lower ball half base 300, the upper ball head 400, the connecting column 500 and the plurality of reinforcing ribs 510 are all made of steel structures, so that the overall structural strength is effectively improved.

[0038] The upper ball hinge seat 200 can rotate horizontally around the upper ball head 400 and deflect vertically and laterally, and the lower ball half base 300 can rotate horizontally in the lower ball hinge seat 100, and can rotate horizontally upward and downward, and the horizontal rotation is the main movement direction, and the required maximum static friction torque for rotating the upper hinge and the lower hinge can be designed to control the rotation of one of the hinges, and in this case, the rotation of the other hinge can be considered as a safety measure under the limit, and compared with the traditional ball hinge structure, the rotating degree of freedom is higher, the resistance is smaller, the durability is stronger, the stress performance is better, and the safety reliability is higher.

[0039] The utility model is applied to the tide gate project, the lower ball hinge seat 100 can be used as a support hinge foundation, and the lower part of the lower ball hinge seat 100 can be provided with a pile foundation, and the upper ball hinge seat 200 can be connected with a gate, and the upper ball hinge seat 200 can be used as a gate body structure.

[0040] The basic principles and main features of the utility model and the advantages of the utility model are shown and described. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only used to illustrate the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A double spherical hinge structure, characterized in that, include: The lower ball joint seat has a lower ball joint receiving groove on its top surface; An upper ball joint seat is located above the lower ball joint seat, and the bottom surface of the upper ball joint seat is provided with an upper ball joint receiving groove; The lower spherical half-base is installed in the lower spherical hinge receiving groove of the lower spherical hinge seat, so that the lower spherical half-base can rotate horizontally within the lower spherical hinge receiving groove; An upper ball joint, wherein the upper ball joint is installed within the upper ball joint receiving groove of the upper ball joint seat, allowing the upper ball joint seat to rotate horizontally and vertically about the upper ball joint; and A connecting column is provided, which is located between the lower spherical half-base and the upper spherical head. Its upper end is connected to the upper spherical head, and its lower end is connected to the top surface of the lower spherical half-base.

2. The double spherical hinge structure as described in claim 1, characterized in that, The lower spherical base includes a bottom supporting spherical surface, a side supporting cylindrical surface, and a cylindrical journal arranged coaxially and stacked from bottom to top. The outer circumferential surface of the bottom supporting spherical surface is spherical and is adapted to the bottom of the inner groove surface of the lower spherical hinge receiving groove. The outer circumferential surface of the side supporting cylindrical surface is cylindrical and is adapted to the middle of the inner groove surface of the lower spherical hinge receiving groove. The diameter of the cylindrical journal is smaller than the diameter of the side supporting cylindrical surface, and the top surface of the cylindrical journal is flush with the top surface of the lower spherical hinge receiving groove.

3. The double spherical hinge structure as described in claim 2, characterized in that, Several lower stops are circumferentially spaced on the outer periphery of the cylindrical journal within the lower ball joint receiving groove. Each lower stop is connected to the lower ball joint seat by a fastener and abuts against the top surface of the side support cylindrical surface to prevent the lower ball half base from detaching from the lower ball joint seat.

4. The double spherical hinge structure as described in claim 3, characterized in that, A first lubricating layer is provided between the outer peripheral surface of the bottom support spherical part and the inner groove surface of the lower ball joint receiving groove.

5. The double spherical hinge structure as described in claim 1, characterized in that, Several upper stop blocks are circumferentially spaced on the outer periphery of the upper ball head within the upper ball joint receiving groove. Each upper stop block is connected to the upper ball joint seat by a fastener and abuts against the outer periphery of the upper ball head to prevent the upper ball head from disengaging from the upper ball joint seat.

6. The double spherical hinge structure as described in claim 5, characterized in that, A second lubricating layer is provided between the outer peripheral surface of the upper ball head and the inner groove surface of the upper ball hinge receiving groove.

7. The double spherical hinge structure as described in any one of claims 1 to 6, characterized in that, The outer circumferential surface of the connecting column is provided with several reinforcing ribs at circumferential intervals.

8. The double spherical hinge structure as described in claim 7, characterized in that, The lower spherical base, upper spherical head, connecting column, and several reinforcing ribs are made of steel.

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