Rotary shaft structure

Abstract

The application relates to the technical field of mechanical manufacturing, and discloses a rotating shaft structure, which comprises an outer cylinder, the inner wall of the outer cylinder is rotationally connected with an inner cylinder, the outer edge of the inner cylinder is provided with a connecting plate, the top of the connecting plate is provided with a box, the top of the outer cylinder is provided with a lower ring-shaped groove, the bottom of the connecting plate is provided with an upper ring-shaped groove, the shape and size of the inner wall of the upper ring-shaped groove are completely consistent with those of the lower ring-shaped groove, the inner wall of the upper ring-shaped groove is rollingly sleeved with a ball, the outer edge of the ball is movably sleeved with the inner wall of the lower ring-shaped groove, and the bottom of the outer cylinder is provided with a positioning screw mounting plate. Through the cooperation of the large flat head threaded rod and the third slot, the large flat head threaded rod is moved away from the third slot, then the box is rotated at the top of the outer cylinder, so that the box is rotated in the inner wall of the outer cylinder through the inner cylinder, the connecting plate is rotated at the top of the outer cylinder through the ball, and the box is rotated through the connecting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing, and in particular to a rotating shaft structure. Background Art

[0002] A rotating shaft structure is a structure in which a bearing or a combination of bearings rotates. In order for the equipment to rotate efficiently and stably, a rotating shaft structure is required.

[0003] Traditional rotating shaft structures require bearings or bearing combinations to rotate. On the one hand, when the traditional rotating shaft structure needs to install bearings, it requires shaft shoulders, positioning rings and other structures to cooperate with the stable operation of the bearings, which leads to a large manufacturing volume and high manufacturing cost of the rotating shaft structure. On the other hand, when the shaft with a thin-walled structure needs to rotate and there is little space to install bearings, the traditional rotating shaft structure is difficult to assemble stably, and thus requires stable use of the device.

[0004] Therefore, a rotating shaft structure is urgently needed. Summary of the Invention

[0005] The present invention provides a rotating shaft structure to solve the problems raised by the above background technology.

[0006] The present invention provides the following technical solution: a rotating shaft structure, comprising an outer cylinder, the inner wall of the outer cylinder is rotatably connected to the inner cylinder, the outer edge of the inner cylinder is provided with a connecting plate, the top of the connecting plate is provided with a box body, the top of the outer cylinder is provided with a lower annular groove, the bottom of the connecting plate is provided with an upper annular groove, and the shape and size of the inner wall of the upper annular groove are completely consistent with the shape and size of the inner wall of the lower annular groove, the inner wall of the upper annular groove is rollingly sleeved with a ball, and the outer edge of the ball is movably sleeved with the inner wall of the lower annular groove, and the bottom of the outer cylinder is provided with a positioning screw mounting plate.

[0007] As a preferred solution of the present invention, a groove is provided on the outer edge of the inner cylinder near the top, and a shaft wire retaining ring is fixedly mounted on the inner wall of the groove.

[0008] As a preferred solution of the present invention, an annular retaining ring is provided at the bottom of the shaft wire retaining ring, and the inner wall of the annular retaining ring is fixedly assembled with the outer edge of the inner cylinder, and the bottom of the annular retaining ring overlaps with the bottom of the inner wall of the box.

[0009] As a preferred solution of the present invention, a circular groove 1 is provided at the bottom of the inner wall of the box, a through groove is provided at the top of the inner wall of the connecting plate, and the diameter of the inner wall of the through groove is exactly the same as the diameter of the inner wall of the circular groove 1.

[0010] As a preferred solution of the present invention, the inner wall of the circular groove is threadedly connected with a round-head threaded rod, and the outer edge of the round-head threaded rod passes through the inner wall of the circular groove and is threadedly connected to the inner wall of the through groove. The box body is fixedly assembled with the connecting plate through the round-head threaded rod.

[0011] As a preferred solution of the present invention, a slot 1 is provided at the bottom of the positioning screw mounting plate, the inner wall of the slot 1 is threadedly connected to a small flat head threaded rod, and the top of the small flat head threaded rod passes through the inner wall of the slot 1 and is threadedly connected to the inner wall of the outer cylinder.

[0012] As a preferred solution of the present invention, a slot 2 is provided at the bottom of the positioning screw mounting plate, a slot 3 is provided at the bottom of the inner wall of the box, and the diameter of the inner wall of the slot 3 is completely consistent with the diameter of the inner wall of the slot 2. The inner wall of the slot 2 is threadedly connected with a large flat head threaded rod, and the top of the large flat head threaded rod passes through the inner wall of the slot 2 and is threadedly connected to the inner wall of the slot 3.

[0013] As a preferred solution of the present invention, there are two circular grooves, and the inner walls of the two circular grooves are threadedly connected to the round-head threaded rods. There are two through grooves, and the inner walls of the two through grooves are respectively threadedly connected to the outer edges of the two round-head threaded rods.

[0014] As a preferred solution of the present invention, a docking groove is provided at the bottom of the outer cylinder, and the inner wall of the docking groove is threadedly connected to a round-head threaded rod two. There are two docking grooves, and the inner walls of the two docking grooves are both threadedly connected to a round-head threaded rod two.

[0015] As a preferred solution of the present invention, a cover plate is provided on the side of the box body, the inner wall of the cover plate is slidably connected with a docking threaded rod, and the side of the docking threaded rod is fixedly assembled with the side of the box body, the number of the docking threaded rods is four, and the outer edges of the four docking threaded rods are all slidably connected to the inner wall of the cover plate, the side of the cover plate is provided with a bolt, and the inner wall of the bolt is threadedly connected to the outer edge of the docking threaded rod.

[0016] The present invention has the following beneficial effects:

[0017] 1. The rotating shaft structure uses a large flat-head threaded rod in conjunction with slot three to move the large flat-head threaded rod away from slot three, and then rotates the box body at the top of the outer cylinder, so that the box body rotates in the inner wall of the outer cylinder through the inner cylinder, and uses balls to assist the connecting plate to rotate at the top of the outer cylinder, thereby utilizing the connecting plate to assist the box body to rotate.

[0018] 2. The rotating shaft structure uses a round-head threaded rod and a round groove in combination. The round-head threaded rod passes through the inner wall of the round groove and the through groove, thereby fixing the box body and the connecting plate with the round-head threaded rod. Then, the shaft wire retaining ring is used to assist the annular retaining ring to limit the inner cylinder and the connecting plate, thereby quickly installing.

[0019] 3. The rotating shaft structure has low cost and compact structure, and solves the problem that the rotating shaft cannot be equipped with bearings due to limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0023] Figure 4 This is a schematic diagram of the internal structure of the box of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the outer cylinder of the present invention;

[0025] Figure 6 This is a schematic diagram of the partially disassembled structure of the present invention.

[0026] In the figure: 1. Outer cylinder; 2. Inner cylinder; 3. Connecting plate; 4. Box body; 5. Lower annular groove; 6. Upper annular groove; 7. Ball bearing; 8. Positioning screw mounting plate; 9. Slot 1; 10. Small flat head threaded rod; 11. Slot 2; 12. Large flat head threaded rod; 13. Slot 3; 14. Round groove 1; 15. Through groove; 16. Round head threaded rod 1; 17. Annular retaining ring; 18. Wire retaining ring for shaft; 19. Docking groove; 20. Round head threaded rod 2; 21. Cover plate; 22. Docking threaded rod; 23. Groove. DETAILED DESCRIPTION

[0027] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] See also Figure 1-6A rotating shaft structure includes an outer cylinder 1, the inner wall of the outer cylinder 1 is rotatably connected to the inner cylinder 2, the outer edge of the inner cylinder 2 is provided with a connecting plate 3, the top of the connecting plate 3 is provided with a box body 4, the top of the outer cylinder 1 is provided with a lower annular groove 5, the bottom of the connecting plate 3 is provided with an upper annular groove 6, and the shape and size of the inner wall of the upper annular groove 6 are completely consistent with the shape and size of the inner wall of the lower annular groove 5, the inner wall of the upper annular groove 6 is rollingly sleeved with a ball 7, and the outer edge of the ball 7 is movably sleeved with the inner wall of the lower annular groove 5, and the bottom of the outer cylinder 1 is provided with a positioning screw mounting plate 8, through Through the coordinated use of the inner cylinder 2 and the outer cylinder 1, the inner cylinder 2 guides the rotation of the box body 4. The inner cylinder 2 adopts a flange-shaped cylinder near the outer edge of the bottom, and then uses the inner wall of the outer cylinder 1 to stabilize the inner cylinder 2 to prevent the inner cylinder 2 from moving too high and entering the interior of the box body 4, thereby affecting the stable operation of the device. The number of balls 7 is nineteen, and the nineteen balls 7 are used to roll in the inner wall of the upper annular groove 6 and the inner wall of the lower annular groove 5, thereby assisting the connecting plate 3 to rotate stably on the top of the outer cylinder 1, and then using the connecting plate 3 to assist the box body 4 to rotate stably.

[0029] Among them, a groove 23 is provided on the outer edge of the inner cylinder 2 near the top, and the inner wall of the groove 23 is fixedly equipped with a shaft wire retaining ring 18. Through the coordinated use of the groove 23 and the shaft wire retaining ring 18, the groove 23 is used to assist in limiting the shaft wire retaining ring 18, and the shaft wire retaining ring 18 is used to assist in limiting the annular retaining ring 17, thereby preventing the annular retaining ring 17 from driving the box body 4 to move upward, thereby causing the box body 4 to separate from the inner cylinder 2, affecting the stable operation of the device.

[0030] Among them, an annular retaining ring 17 is provided at the bottom of the shaft wire retaining ring 18, and the inner wall of the annular retaining ring 17 is fixedly assembled with the outer edge of the inner cylinder 2, and the bottom of the annular retaining ring 17 overlaps with the bottom of the inner wall of the box body 4. By adding the annular retaining ring 17, the annular retaining ring 17 is utilized to assist the box body 4 to rotate stably on the outer edge of the inner cylinder 2, thereby ensuring stable operation of the device.

[0031] Among them, a circular groove 14 is opened at the bottom of the inner wall of the box body 4, and a through groove 15 is opened at the top of the inner wall of the connecting plate 3, and the diameter of the inner wall of the through groove 15 is completely consistent with the diameter of the inner wall of the circular groove 14. By opening the circular groove 14 and the through groove 15, it is convenient to utilize the inner wall of the circular groove 14 and the inner wall of the through groove 15 to assist the connecting plate 3 and the box body 4 to be docked and installed, thereby assisting the device to be stably erected.

[0032] Among them, the inner wall of the circular groove 14 is threadedly connected with a round-head threaded rod 16, and the outer edge of the round-head threaded rod 16 passes through the inner wall of the circular groove 14 and is threadedly connected to the inner wall of the through groove 15. The box body 4 is fixedly assembled with the connecting plate 3 through the round-head threaded rod 16. By adding the round-head threaded rod 16, the bottom of the round-head threaded rod 16 is used to pass through the inner wall of the circular groove 14 and the inner wall of the through groove 15 in turn, thereby stably docking the connecting plate 3 and the box body 4, and then the box body 4 rotates with the rotation of the connecting plate 3.

[0033] Among them, a slot 9 is provided at the bottom of the positioning screw mounting plate 8, and the inner wall of the slot 9 is threadedly connected to a small flat-head threaded rod 10, and the top of the small flat-head threaded rod 10 passes through the inner wall of the slot 9 and is threadedly connected to the inner wall of the outer tube 1. By cooperating with the slot 9 and the small flat-head threaded rod 10, the top of the small flat-head threaded rod 10 passes through the inner wall of the slot 9 and docks with the inner wall of the outer tube 1, thereby stably docking the positioning screw mounting plate 8 with the outer tube 1.

[0034] Among them, a slot 2 11 is provided at the bottom of the positioning screw mounting plate 8, and a slot 3 13 is provided at the bottom of the inner wall of the box body 4, and the diameter of the inner wall of the slot 3 13 is exactly the same as the diameter of the inner wall of the slot 2 11. The inner wall of the slot 2 11 is threadedly connected with a large flat head threaded rod 12, and the top of the large flat head threaded rod 12 passes through the inner wall of the slot 2 11 and is threadedly connected to the inner wall of the slot 3 13. By co-operating with the slot 2 11 and the slot 3 13, the inner wall of the slot 2 11 is connected to the inner wall of the slot 3 13, and the top of the large flat head threaded rod 12 passes through the inner wall of the slot 2 11 and the inner wall of the slot 3 13 in turn, so that the box body 4 and the positioning screw mounting plate 8 are stably docked, thereby preventing the box body 4 from rotating when it needs to be stably limited, affecting the stable use of the device.

[0035] Among them, there are two circular grooves 14, and the inner walls of the two circular grooves 14 are both threadedly connected with a round-head threaded rod 16. There are two through grooves 15, and the inner walls of the two through grooves 15 are respectively threadedly connected with the outer edges of the two round-head threaded rods 16. By opening the two circular grooves 14 and the two through grooves 15, the bottoms of the two round-head threaded rods 16 pass through the inner walls of the circular grooves 14 and the inner walls of the through grooves 15 respectively and dock with each other, thereby assisting the assembly of the box body 4 and the connecting plate 3 to be more stable and avoiding the shaking of the box body 4 during rotation.

[0036] Among them, a docking groove 19 is opened at the bottom of the outer tube 1, and the inner wall of the docking groove 19 is threadedly connected with a round-head threaded rod 20. There are two docking grooves 19, and the inner walls of the two docking grooves 19 are both threadedly connected with a round-head threaded rod 20. By using the docking groove 19 and the round-head threaded rod 20 in coordination, the bottom of the round-head threaded rod 20 passes through the inner wall of the docking groove 19 and docks with the external device, thereby assisting the outer tube 1 and the external device to be stably assembled and docked.

[0037] Among them, a cover plate 21 is provided on the side of the box body 4, and the inner wall of the cover plate 21 is slidably connected with a docking threaded rod 22, and the side of the docking threaded rod 22 is fixedly assembled with the side of the box body 4. There are four docking threaded rods 22, and the outer edges of the four docking threaded rods 22 are all slidably connected with the inner wall of the cover plate 21. Bolts are provided on the side of the cover plate 21, and the inner walls of the bolts are threadedly connected with the outer edges of the docking threaded rods 22. By adding four docking threaded rods 22, the sides of the four docking threaded rods 22 are utilized to pass through the inner wall of the cover plate 21, and the inner walls of the four bolts are threadedly connected with the outer edges of the four docking threaded rods 22, thereby assisting the stable assembly of the box body 4, and by turning the bolts, the cover plate 21 is removed in the direction away from the box body 4, so that the docking parts inside the box body 4 can be installed, disassembled, repaired and replaced.

[0038] Working principle: when the device needs to be installed, the ball 7 is placed between the inner wall of the upper annular groove 6 and the inner wall of the lower annular groove 5, and then the inner wall of the box body 4 is docked with the outer edge of the inner tube 2, and the shaft wire retaining ring 18 and the annular retaining ring 17 are used to limit the assembly of the connecting plate 3 and the box body 4, and then the bottom of the round head threaded rod 16 is used to pass through the inner wall of the circular groove 14 and the inner wall of the through groove 15 in turn, so as to fix the connecting plate 3 and the box body 4, and then the small flat head threaded rod 10 is used to pass through the inner wall of the notch 9 and the inner wall of the outer tube 1 in turn, so as to dock the positioning screw mounting plate 8 with the outer tube 1, and the top of the large flat head threaded rod 12 is used to follow the The large flat-head threaded rod 12 is moved away from the box body 4 until the outer edge of the large flat-head threaded rod 12 is completely out of the inner wall of the slot 3 13. At this time, the shaft uses a wire retaining ring 18 to limit the annular retaining ring 17, thereby assisting the inner cylinder 2 to be stably limited in the inner wall of the outer cylinder 1 and stably docking the inner cylinder 2 and the box body 4. After that, the balls 7 in the inner wall of the lower annular groove 5 and the inner wall of the upper annular groove 6 are used to assist the connecting plate 3 to rotate on the top of the outer cylinder 1, so that the connecting plate 3 drives the box body 4 to rotate stably through the round-head threaded rod 16.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rotating shaft structure, comprising an outer cylinder (1), characterized in that: The inner wall of the outer cylinder (1) is rotatably connected to the inner cylinder (2), the outer edge of the inner cylinder (2) is provided with a connecting plate (3), the top of the connecting plate (3) is provided with a box (4), the top of the outer cylinder (1) is provided with a lower annular groove (5), the bottom of the connecting plate (3) is provided with an upper annular groove (6), and the shape and size of the inner wall of the upper annular groove (6) are completely consistent with the shape and size of the inner wall of the lower annular groove (5), the inner wall of the upper annular groove (6) is rollingly sleeved with a ball (7), and the outer edge of the ball (7) is movably sleeved with the inner wall of the lower annular groove (5), and the outer wall of the outer cylinder (1) is provided with a lower annular groove (5). A positioning screw mounting plate (8) is provided at the bottom, a circular groove (14) is provided at the bottom of the inner wall of the box body (4), a through groove (15) is provided at the top of the inner wall of the connecting plate (3), and the diameter of the inner wall of the through groove (15) is completely consistent with the diameter of the inner wall of the circular groove (14), the inner wall of the circular groove (14) is threadedly connected with a round head threaded rod (16), and the outer edge of the round head threaded rod (16) passes through the inner wall of the circular groove (14) and is threadedly connected to the inner wall of the through groove (15), and the box body (4) is fixedly assembled with the connecting plate (3) through the round head threaded rod (16).

2. The rotating shaft structure according to claim 1, characterized in that: A groove (23) is provided on the outer edge of the inner cylinder (2) near the top, and a shaft wire retaining ring (18) is fixedly mounted on the inner wall of the groove (23).

3. The rotating shaft structure according to claim 2, characterized in that: An annular retaining ring (17) is provided at the bottom of the shaft wire retaining ring (18), and the inner wall of the annular retaining ring (17) is fixedly assembled with the outer edge of the inner cylinder (2), and the bottom of the annular retaining ring (17) overlaps with the bottom of the inner wall of the box body (4).

4. The rotating shaft structure according to claim 1, characterized in that: A slot 1 (9) is provided at the bottom of the positioning screw mounting plate (8), and a small flat-head threaded rod (10) is threadedly connected to the inner wall of the slot 1 (9), and the top of the small flat-head threaded rod (10) passes through the inner wall of the slot 1 (9) and is threadedly connected to the inner wall of the outer cylinder (1).

5. The rotating shaft structure according to claim 1, characterized in that: The bottom of the positioning screw mounting plate (8) is provided with a second slot (11), the bottom of the inner wall of the box body (4) is provided with a third slot (13), and the diameter of the inner wall of the third slot (13) is completely consistent with the diameter of the inner wall of the second slot (11), the inner wall of the second slot (11) is threadedly connected with a large flat head threaded rod (12), and the top of the large flat head threaded rod (12) passes through the inner wall of the second slot (11) and is threadedly connected to the inner wall of the third slot (13).

6. The rotating shaft structure according to claim 1, characterized in that: The number of the circular grooves (14) is two, and the inner walls of the two circular grooves (14) are both threadedly connected to the round-head threaded rods (16). The number of the through grooves (15) is two, and the inner walls of the two through grooves (15) are respectively threadedly connected to the outer edges of the two round-head threaded rods (16).

7. The rotating shaft structure according to claim 1, characterized in that: A docking groove (19) is provided at the bottom of the outer cylinder (1), and the inner wall of the docking groove (19) is threadedly connected to a round-head threaded rod (20). There are two docking grooves (19), and the inner walls of the two docking grooves (19) are both threadedly connected to a round-head threaded rod (20).

8. The rotating shaft structure according to claim 1, characterized in that: A cover plate (21) is provided on the side of the box body (4), and a butt-jointed threaded rod (22) is slidably connected to the inner wall of the cover plate (21), and the side of the butt-jointed threaded rod (22) is fixedly assembled with the side of the box body (4). There are four butt-jointed threaded rods (22), and the outer edges of the four butt-jointed threaded rods (22) are all slidably connected to the inner wall of the cover plate (21). Bolts are provided on the side of the cover plate (21), and the inner wall of the bolts is threadedly connected to the outer edge of the butt-jointed threaded rod (22).

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