CN219547542U - Lower spherical hinge device of assembled swivel support - Google Patents

Abstract

The utility model discloses a lower spherical hinge device of an assembled swivel support, which comprises an upper spherical hinge, a lower spherical hinge and an embedded base, wherein the upper spherical hinge is provided with a convex spherical surface, the lower spherical hinge is provided with a concave spherical surface, the upper spherical hinge is rotationally connected with the lower spherical hinge through a rotating shaft, the lower spherical hinge is divided into two split blocks from the diameter direction, each split block is provided with a dividing surface formed by dividing, two different connecting parts are arranged on the two split blocks so as to realize the connection of the two split blocks, the embedded base is used for pre-embedding concrete, a clamping groove for inserting the lower spherical hinge is formed, and the area of the clamping groove is matched with the area of the lower spherical hinge. The lower spherical hinge device of the assembled swivel support can avoid the falling frame of the lower spherical hinge caused by horizontal component force generated after the lower spherical hinge is stressed, and has higher installation and debugging efficiency.

Description

Lower spherical hinge device of assembled swivel support

Technical Field

The embodiment of the utility model belongs to the technical field of bridge construction, and particularly relates to a lower spherical hinge device of an assembled swivel support.

Background

When the new repair line is constructed across the existing railway and highway, in order to reduce the influence of the new repair line construction on the operation of the existing line, a turning method is generally used, namely, bridge construction is firstly performed on one side parallel to the existing line, after the bridge construction is completed, turning is performed, and the bridge is rotated by a certain angle to a design position so as to realize the crossing of the existing line, thereby achieving the purpose of not influencing the operation of the existing line.

The swivel ball hinge is used as a key component in the bridge swivel process, and directly influences success and failure of the bridge swivel. The swivel ball hinge generally consists of an upper ball hinge and a lower ball hinge, and the upper ball hinge and the lower ball hinge are in rotary connection through a rotary shaft. The existing swivel ball hinge is divided into an integral type and a block assembly type, wherein when the swivel ball hinge is lighter in weight and smaller in size, the integral type is adopted, and when the swivel ball hinge is heavier in weight and larger in size, the block assembly type is adopted, namely, the block assembly type can meet the transportation requirement of the heavier swivel ball hinge.

The problem of prior art lies in that the swivel lower spherical hinge of piecewise assembled is assembled by the polylith and is formed, only through the bolt with realizing connecting between every piece, this causes connecting compactness relatively poor between every piece, simultaneously, go up the spherical hinge and be the convex sphere, lower spherical hinge is concave sphere, go up the spherical hinge and install and rotate on lower spherical hinge, lower spherical hinge receives the gravity effect of the vertical direction of last spherical hinge, all produces horizontal component on the polylith lower spherical hinge, lower spherical hinge is easy to scatter.

Disclosure of Invention

Aiming at the defects or improvement demands of the prior art, the utility model provides a lower spherical hinge device of an assembled swivel support, which aims to avoid the problem that the lower spherical hinge is scattered due to the vertical gravity of the upper spherical hinge.

In order to achieve the above object, the utility model provides a lower spherical hinge device for an assembled swivel support, comprising:

the upper spherical hinge is provided with a convex spherical surface, the lower spherical hinge is provided with a concave spherical surface, the upper spherical hinge is rotationally connected with the lower spherical hinge through a rotating shaft, the lower spherical hinge is divided into two split blocks from the diameter direction, the split blocks are provided with divided surfaces formed by division, and two different connecting parts are arranged on the two split blocks so as to realize the connection of the two split blocks;

the embedded base is used for being embedded in concrete in advance, the embedded base is provided with a clamping groove for the lower spherical hinge to be inserted, and the area of the clamping groove is matched with the area of the lower spherical hinge.

In one embodiment, two different connecting parts are provided, one of which is provided on the outer peripheral wall of the split block and the other of which is provided on the split surface of the split block.

In an embodiment, two the split blocks periphery wall is equipped with the spread groove, the spread groove towards the inside concave setting of split block, split block still includes the connection sand grip, the protruding connection convex part that is equipped with in both ends of connection sand grip, the connection convex part is used for inserting the spread groove, the spread groove with the connection sand grip forms one connecting portion.

In an embodiment, the connecting groove is disposed on one side of the peripheral wall of the split block, which is close to the dividing surface, and the split block is provided with an embedded groove, the embedded groove is concavely disposed from the dividing surface of the split block and extends toward the connecting groove, the embedded groove and the connecting groove form a step-shaped groove, and the groove depth of the embedded groove is consistent with the thickness of the connecting raised strip.

In an embodiment, the connecting groove is provided with a bolt connecting port, the connecting convex part is provided with a bolt through hole for inserting a bolt, and the bolt can be inserted into the bolt through hole to be in threaded connection with the bolt connecting port.

In one embodiment, two split blocks are provided with two split faces, one split face is provided with an insertion convex part in a protruding mode perpendicular to the split face direction, the other split face is provided with an insertion groove in a recessed mode perpendicular to the split face direction, and the insertion convex part and the insertion groove form a connecting part.

In an embodiment, the bottom surface of block groove is equipped with prevents changeing the groove, prevent changeing the groove orientation the inside concave setting of pre-buried base, the bottom surface of components of a whole that can function independently piece is equipped with the cooperation groove, the cooperation groove orientation the inside concave setting of components of a whole that can function independently piece, components of a whole that can function independently piece still includes prevents changeing the sand grip, prevent changeing the thickness of sand grip and be greater than prevent changeing the groove depth of groove and be less than prevent changeing the groove with the sum of cooperation groove depth.

In an embodiment, the anti-rotation groove extends from the bottom surface of the clamping groove to the periphery of the embedded base to form a first opening, and the matching groove extends from the bottom surface of the split block to the periphery of the split block to form a second opening.

In an embodiment, prevent being equipped with on the anti-rotation sand grip and prevent the bull stick, prevent that the bull stick is equipped with a plurality ofly, a plurality of prevent the bull stick from prevent changeing sand grip length direction and lay, the cooperation groove tank bottom is equipped with the confession prevent bull stick male prevents changeing the hole, prevent changeing the hole and be equipped with a plurality ofly, a plurality of prevent changeing the hole and lay along cooperation groove length direction.

In an embodiment, an annular protruding strip is arranged on the concave spherical surface of the lower spherical hinge, a fan-shaped wear-resisting plate is arranged in the annular protruding strip, and a plurality of fan-shaped wear-resisting plates are mutually spliced to fully cover the concave spherical surface.

In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:

according to the lower spherical hinge device of the assembled swivel support, the clamping grooves are formed in the embedded base, so that the two split blocks are fixed and supported, the lower spherical hinge is prevented from being scattered, two different connecting parts are arranged on the two split blocks on the basis, the connection compactness and stability of the two split blocks are improved, and the reliability of the lower spherical hinge is further improved.

Drawings

FIG. 1 is an exploded view of a lower spherical hinge device of an assembled swivel support in accordance with an embodiment of the present utility model;

fig. 2 is a schematic structural view of a connection part of a lower spherical hinge device of an assembled swivel support according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a split block of a lower spherical hinge device of an assembled swivel support according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a pre-buried base of a lower spherical hinge device of an assembled swivel support according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at A;

fig. 6 is a schematic structural view of a mating groove of a lower spherical hinge device of an assembled swivel support according to an embodiment of the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular:

10. the lower spherical hinge device of the assembled swivel support; 11. a spherical hinge is arranged; 111. a convex spherical surface; 12. a lower spherical hinge; 121. a concave spherical surface; 1211. an annular convex strip; 122. split blocks; 1221. a connection part; 12211. a step-shaped groove; 122111, connecting grooves; 122112, an embedded groove; 12212. connecting convex strips; 122121, connecting projections; 12213. an insertion protrusion; 12214. an insertion groove; 1222. a mating groove; 12221. a second opening; 12222. anti-rotation holes; 1223. anti-rotation raised strips; 12231. an anti-rotation rod; 123. a dividing surface; 13. embedding a base; 131. a clamping groove; 132. an anti-rotation groove; 1321. a first opening; 14. a fan-shaped wear-resisting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, if directional indications (such as up, down, left, right, front, and rear … …) are referred to, they are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, the description of "first," "second," and the like, if any, is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or an implicit indication of the number of features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1 to 6, the present utility model provides a lower spherical hinge device 10 of a split rotary support, which comprises an upper spherical hinge 11, a lower spherical hinge 12 and a pre-buried base 13. In this embodiment, the lower spherical hinge 12 has a concave spherical surface 121, the upper spherical hinge 11 has a convex spherical surface 111, and the lower spherical hinge 12 and the upper spherical hinge 11 are rotatably connected through a rotation shaft. In the actual use process, the bridge is fixedly connected to the surface, far away from the convex spherical surface 111, of the upper spherical hinge 11, and the upper spherical hinge 11 rotates around the rotating shaft under the action of bridge torque by rotating the bridge, so that the upper spherical hinge 11 rotates on the lower spherical hinge 12. Further, the lower ball joint 12 is divided into two split pieces 122 from the diameter direction. It will be appreciated that by dividing the lower spherical hinge 12 along the diameter direction of the lower spherical hinge 12, two split blocks 122 with the same volume and mass can be obtained, and the design has the advantage that on the premise of being convenient for transportation, the split blocks 122 are prevented from being more in number and different in mass and volume, so that the field installation difficulty is high.

The pre-buried base 13 is used for pre-burying concrete. In practical use, the pre-buried base 13 needs to be pre-buried in the construction site, and after the concrete is solidified, the pre-buried base 13 is connected with the construction site to form an integral structure. Further, the pre-buried base 13 is provided with a clamping groove 131 for inserting the lower spherical hinge 12, and the area of the clamping groove 131 is adapted to the area of the lower spherical hinge 12. When in actual use, after the two split blocks 122 are assembled, the two split blocks 122 are inserted into the clamping groove 131 to realize the installation of the lower spherical hinge 12, it is easy to understand that when the lower spherical hinge 12 is inserted into the clamping groove 131, the inner wall of the clamping groove 131 can provide supporting force for the two split blocks 122 when the two split blocks 122 are subjected to horizontal outward acting force, so that the lower spherical hinge 12 is prevented from being scattered, and meanwhile, the clamping groove 131 can provide positioning effect for the two split blocks 122. Further, two different connecting portions 1221 are provided on the two split blocks 122 to connect the two split blocks 122. It can be appreciated that when the two split blocks 122 are assembled and inserted into the clamping groove 131, the two different connecting portions 1221 provide a pre-fixing effect for the two split blocks 122, so that the two split blocks 122 can be conveniently inserted into the clamping groove 131, stability in the inserting process can be ensured, and the on-site installation efficiency can be improved, meanwhile, the two different connecting portions 1221 can improve the connection tightness and stability of the two split blocks 122, so as to improve the working reliability of the lower spherical hinge 12.

It can be appreciated that the assembly-type swivel support lower spherical hinge device 10 of the present utility model is configured to fix and support the two split blocks 122 through the clamping groove 131 disposed on the pre-buried base 13, so as to avoid the lower spherical hinge 12 from being scattered, and on this basis, two different connecting portions 1221 are disposed on the two split blocks 122, so as to improve the connection tightness and stability of the two split blocks 122, and further improve the reliability of the lower spherical hinge 12.

In one embodiment, two different connecting portions 1221 are provided, one being provided on the outer peripheral wall of the split block 122 and the other being provided on the dividing surface 123 of the split block 122. The advantage of this arrangement is that the connection of the two split blocks 122 can be achieved from two different directions to improve the connection strength and thus the tightness and stability of the connection of the two split blocks 122.

In an embodiment, the outer peripheral walls of the two split blocks 122 are provided with connecting grooves 122111, the connecting grooves 122111 are concavely formed toward the inside of the split blocks 122, the split blocks 122 further comprise connecting convex strips 12212, connecting convex portions 122121 are convexly formed at two ends of the connecting convex strips 12212, the connecting convex portions 122121 are used for being inserted into the connecting grooves 122111, and the connecting grooves 122111 and the connecting convex strips 12212 form a connecting portion 1221. Specifically, in actual use, the two connection protrusions 122121 of the connection protrusions 12212 may be inserted into the connection grooves 122111 of the two split blocks 122, respectively, so as to connect the two split blocks 122. It is easy to understand that the advantage of such arrangement is that, by inserting the connecting convex strip 12212 into the connecting groove 122111, the two split blocks 122 can be prevented from being spread in the horizontal direction to a certain extent, and at the same time, the two split blocks 122 can be prevented from being spread in the vertical direction, and the connection strength of the two split blocks 122 can be further improved, and at the same time, since the connecting convex strip 12212 can be integrally connected with the outer peripheral walls of the two split blocks 122, the integration after the two split blocks 122 are connected can be improved.

Further, the connecting groove 122111 is provided on the side of the outer peripheral wall of the split block 122 close to the dividing surface 123. It will be appreciated that this arrangement has the advantage that the length of the connecting protrusion 12212 is relatively short, and the two split blocks 122 are not easily separated after the connecting protrusion 122121 is inserted into the connecting groove 122111, and at the same time, the connecting protrusion 12212 is not easily damaged due to the vertical force generated by the vertical dislocation of the two split blocks 122 due to the relatively short length of the connecting protrusion 12212. The split block 122 is further provided with an insertion groove 122112, and the insertion groove 122112 is recessed from the dividing surface 123 of the split block 122 and extends toward the connection groove 122111, and the depth of the insertion groove corresponds to the thickness of the connection ridge 12212. Specifically, the insertion groove 122112 is used for inserting the connection protrusion 12212, the insertion groove 122112 is communicated with the connection groove 122111, the insertion groove 122112 and the connection groove 122111 can form the step-shaped groove 12211, and after the connection protrusion 12212 is inserted into the insertion groove 122112, the connection protrusion 12212 is integrally embedded in the step-shaped groove 12211, so that the connection protrusion 12212 can be hidden on the outer peripheral wall of the two split blocks 122, thereby improving the integrity and further improving the aesthetic property, and meanwhile, as the upper and lower sides of the connection protrusion 12212 are in contact with the inner wall of the step-shaped groove 12211, the connection tightness of the two split blocks 122 is further improved.

Further, a bolt connection port is provided in the connection groove 122111, a bolt through hole into which a bolt is inserted is provided in the connection protrusion 122121, and the bolt is inserted into the bolt through hole and is screwed to the bolt connection port. It will be appreciated that the connection protruding strips 12212 can be fixed in the stepped grooves 12211 by screwing the bolts and the bolt connection ports, so that the connection protruding strips 12212 are prevented from falling off from the stepped grooves 12211, and the two split blocks 122 are prevented from being scattered.

In one embodiment, on the dividing surface 123 of the two split blocks 122, an insertion protrusion 12213 is protruding in a direction perpendicular to the dividing surface 123, and an insertion groove 12214 is recessed in a direction perpendicular to the dividing surface 123, and the insertion protrusion 12213 and the insertion groove 12214 form the connecting portion 1221. In actual operation, the insertion protrusion 12213 of one split block 122 is inserted into the insertion groove 12214 of the other split block 122, so that the split blocks 122 can be assembled. The advantage of this arrangement is that the assembly process of the two split blocks 122 is simplified, and at the same time, after the two split blocks 122 are assembled, the insertion protrusion 12213 and the insertion groove 12214 can be hidden, so as to improve the integrity and further the aesthetic property.

In an embodiment, an anti-rotation groove 132 is disposed at the bottom of the engaging groove 131, and the anti-rotation groove 132 is concavely disposed toward the inside of the embedded base 13. Specifically, in the present embodiment, two anti-rotation grooves 132 are provided, and the two anti-rotation grooves 132 are disposed on two opposite sides of the engaging groove 131. Further, the bottom surface of the split block 122 is provided with a fitting groove 1222, and the fitting groove 1222 is concavely arranged toward the inside of the split block 122. Specifically, in the embodiment, two mating grooves 1222 are provided, and two mating grooves 1222 are provided on the bottom surfaces of the two split blocks 122, respectively. The split block 122 further includes anti-rotation ribs 1223, the thickness of the anti-rotation ribs 1223 being greater than the groove depth of the anti-rotation grooves 132. The capacity understanding is such that the anti-rotation ribs 1223 are exposed from within the anti-rotation slots 132. The thickness of the anti-rotation protrusions 1223 is smaller than the sum of the depths of the anti-rotation grooves 132 and the mating grooves 1222. It will be appreciated that such an arrangement can prevent the anti-rotation protrusions 1223 from abutting the split block 122 and affecting the stability of the lower ball pivot 12. When in actual use, only the anti-rotation raised strips 1223 are placed in the anti-rotation grooves 132, and then the matching grooves 1222 of the split blocks 122 are aligned with the anti-rotation raised strips 1223, when the upper spherical hinge 11 is rotated by the torque of the bridge, the upper spherical hinge 11 can drive the lower spherical hinge 12 to rotate, and the lower spherical hinge 12 can be provided with limit through the anti-rotation raised strips 1223, so that the lower spherical hinge 12 is prevented from rotating.

In one embodiment, the rotation preventing groove 132 extends from the bottom surface of the engagement groove 131 to the outer circumference of the pre-buried base 13, and the engagement groove 1222 extends from the bottom surface of the split block 122 to the circumference side of the split block 122. Specifically, the extending directions of the anti-rotation groove 132 and the mating groove 1222 are both the radial directions of the engaging groove 131, it is easy to understand that the torque direction of the split block 122 received by the upper ball joint 11 is the circumferential direction, after the anti-rotation protrusion 1223 is placed in the anti-rotation groove 132, the length direction of the anti-rotation protrusion 1223 is the radial direction of the engaging groove 131, and the radial direction of the engaging groove 131 is perpendicular to the circumferential direction, so that the anti-rotation protrusion 1223 can effectively resist the torque received by the split block 122. Further, the rotation preventing groove 132 forms a first opening 1321 from the outer circumference of the pre-buried base 13, and the fitting groove 1222 forms a second opening 12221 from the circumferential side of the body block 122. The advantage of this arrangement is that the anti-rotation protrusions 1223 can be inserted into the anti-rotation slots 132 and the mating slots 1222 from the first and second openings 1321 and 12221 to improve installation and debugging efficiency.

In one embodiment, the anti-rotation protrusions 1223 are provided with a plurality of anti-rotation bars 12231, and the plurality of anti-rotation bars 12231 are arranged along the length direction of the anti-rotation protrusions 1223. The engagement groove 1222 has a rotation preventing hole 12222 at the bottom thereof for inserting the rotation preventing lever 12231 therein, and the rotation preventing hole 12222 is provided in plurality and the rotation preventing holes 12222 are arranged along the length direction of the engagement groove 1222. It will be appreciated that the anti-rotation hole 12222 is inserted through the anti-rotation rod 12231, so that the situation that the two split blocks 122 rotate can be further avoided, and the assembly type swivel support lower spherical hinge device 10 cannot be normally used.

In one embodiment, the concave spherical surface 121 of the lower spherical hinge 12 is provided with an annular protruding strip 1211. Specifically, in the present embodiment, 4 annular protruding strips 1211 are provided on the concave spherical surface 121 of the lower spherical hinge 12 to separate the concave spherical surface 121 into 4 annular laying areas, and the 4 annular laying areas are used for laying wear plates, so that it is easy to understand that damage between the upper spherical hinge 11 and the lower spherical hinge 12 due to wear can be avoided through the wear plates. Further, a plurality of sector-shaped wear plates 14 are disposed in the annular protruding strips 1211, and the sector-shaped wear plates 14 are spliced with each other to fill the concave spherical surface 121. It is easy to understand that setting the wear plate to be fan-shaped, on the one hand can guarantee to accomplish to cover in annular area of laying, on the other hand, because lower spherical hinge 12 is bulky, lays fan-shaped wear plate 14 and can reduce manufacturing cost, and convenient transportation and field installation, in addition, because lower spherical hinge 12 is assembled by split piece 122 and is formed, uses fan-shaped wear plate 14, can install fan-shaped wear plate 14 on being fixed in advance on split piece 122 before the field installation and debugging to improve field installation effectiveness.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. The utility model provides a ball pivot device under pin-connected panel formula swivel support which characterized in that includes:

the upper spherical hinge is provided with a convex spherical surface, the lower spherical hinge is provided with a concave spherical surface, the upper spherical hinge is rotationally connected with the lower spherical hinge through a rotating shaft, the lower spherical hinge is divided into two split blocks from the diameter direction, the split blocks are provided with divided surfaces formed by division, and two different connecting parts are arranged on the two split blocks so as to realize the connection of the two split blocks;

the embedded base is used for being embedded in concrete in advance, the embedded base is provided with a clamping groove for the lower spherical hinge to be inserted, and the area of the clamping groove is matched with the area of the lower spherical hinge.

2. The split rotor support lower spherical hinge device according to claim 1, wherein two different connecting portions are provided on an outer peripheral wall of the split block, and the other is provided on a split surface of the split block.

3. The assembly-type swivel support lower spherical hinge device according to claim 2, wherein the peripheral walls of the two split blocks are provided with connecting grooves, the connecting grooves are concavely formed towards the inside of the split blocks, the split blocks further comprise connecting convex strips, connecting convex portions are convexly arranged at two ends of the connecting convex strips and are used for being inserted into the connecting grooves, and the connecting grooves and the connecting convex strips form a connecting part.

4. The assembly-type swivel support lower spherical hinge device according to claim 3, wherein the connecting groove is formed in one side, close to the dividing surface, of the peripheral wall of the split block, an embedded groove is formed in the split block, the embedded groove is concavely formed in the dividing surface of the split block and extends towards the connecting groove, the embedded groove and the connecting groove form a step-shaped groove, and the groove depth of the embedded groove is consistent with the thickness of the connecting convex strip.

5. The assembly type swivel support lower spherical hinge device according to claim 3, wherein the connecting groove is provided with a bolt connecting port, the connecting protrusion is provided with a bolt through hole for inserting a bolt, and the bolt can be inserted into the bolt through hole to be in threaded connection with the bolt connecting port.

6. The assembly-type swivel support lower spherical hinge device according to claim 2, wherein an insertion protrusion is provided on the dividing surface of the two divided blocks in a direction perpendicular to the dividing surface, and an insertion groove is provided in a direction perpendicular to the dividing surface, and the insertion protrusion and the insertion groove form the connecting portion.

7. The assembly-type swivel support lower spherical hinge device according to claim 1, wherein an anti-rotation groove is formed in the bottom surface of the clamping groove, the anti-rotation groove is concavely formed in the embedded base, a matching groove is formed in the bottom surface of the split block, the matching groove is concavely formed in the split block, the split block further comprises an anti-rotation raised strip, and the thickness of the anti-rotation raised strip is larger than the groove depth of the anti-rotation groove and smaller than the sum of the anti-rotation groove depth and the matching groove depth.

8. The split rotary support lower spherical hinge device according to claim 7, wherein the rotation preventing groove extends from a bottom surface of the engaging groove to an outer periphery of the embedded base to form a first opening, and the engaging groove extends from a bottom surface of the split block to a peripheral side of the split block to form a second opening.

9. The assembly-type swivel support lower spherical hinge device according to claim 7, wherein the anti-rotation protruding bars are provided with a plurality of anti-rotation bars, the anti-rotation bars are distributed in the length direction of the anti-rotation protruding bars, the bottoms of the matching grooves are provided with anti-rotation holes for the insertion of the anti-rotation bars, the anti-rotation holes are provided with a plurality of anti-rotation holes, and the anti-rotation holes are distributed in the length direction of the matching grooves.

10. A split rotary support lower spherical hinge device according to any one of claims 1 to 9, wherein an annular convex strip is arranged on a concave spherical surface of the lower spherical hinge, a fan-shaped wear-resisting plate is arranged in the annular convex strip, and a plurality of the fan-shaped wear-resisting plates are mutually spliced to fill the concave spherical surface.