Rotating device and rotating equipment

Abstract

The utility model belongs to the technical field of laser processing, and relates to a rotating device and rotating equipment, and the rotating device comprises a shell, a rotating shaft, a bearing seat, a first ball bearing and a limiting assembly. The rotating shaft is rotatably inserted into the shell. And the bearing seat is arranged in the shell. The first ball bearing comprises a first inner ring and a first outer ring, the first inner ring is connected with the rotating shaft, and the first outer ring is installed in the bearing seat. The limiting assembly is arranged in the shell and abuts against the first inner ring so as to fix the position of the first inner ring in the axial direction of the rotating shaft. According to the rotating device, the first outer ring of the first ball bearing is fixed through the bearing seat, then the first inner ring of the first ball bearing is fixed through the limiting assembly, the first inner ring is prevented from moving in the axial direction of the rotating shaft, sliding friction between the first inner ring and the outer side wall of the rotating shaft is prevented, and noise generated when the rotating shaft rotates is reduced. The rotating equipment comprises the rotating device, so that the rotating equipment has the beneficial effects brought by the rotating device, which are not repeated here.

Description

Technical Field

[0001] The present application belongs to the field of laser processing technology, and more specifically, relates to a rotating device and rotating equipment. Background Art

[0002] Typically, a motor's shaft rotates using a ball bearing. This ball bearing consists of an inner ring, balls, and an outer ring. The balls are positioned within a raceway between the inner and outer rings. The inner ring is typically connected to the shaft and rotates with the shaft, while the outer ring is typically secured by a bearing seat. During shaft rotation, due to the gap between the inner ring and the balls and the fact that the inner ring is not secured axially to the shaft, the inner ring may move along the shaft's axis, generating sliding friction with the shaft's sidewalls and causing noise. Utility Model Content

[0003] The embodiments of the present application provide a rotating device and a rotating equipment, which prevent the inner ring of the ball bearing from moving along the axial direction of the rotating shaft through a limit assembly, thereby reducing the noise generated by the sliding friction between the inner ring and the side wall of the rotating shaft.

[0004] The technical solution adopted in the embodiment of the present application is to provide a rotating device, comprising:

[0005] shell;

[0006] a rotating shaft rotatably inserted into the housing;

[0007] a bearing seat, mounted in the housing;

[0008] a first ball bearing, comprising a first inner ring and a first outer ring, wherein the first inner ring is connected to the rotating shaft, and the first outer ring is installed in the bearing seat;

[0009] The limiting assembly is arranged in the outer shell and abuts against the first inner ring to fix the axial position of the first inner ring of the rotating shaft.

[0010] Optionally, the rotating device further comprises a second ball bearing, comprising a second inner ring and a second outer ring, wherein the second inner ring is connected to the rotating shaft, and the first outer ring and the second outer ring are spaced apart and arranged on the bearing seat;

[0011] The limiting component abuts against the first inner ring and the second inner ring to reduce the distance between the first inner ring and the second inner ring, so as to fix the first inner ring and the second inner ring.

[0012] Optionally, the limiting assembly includes a limiting protrusion and a limiting member, the limiting protrusion is arranged on the outer wall of the rotating shaft, the limiting member is arranged in the outer shell, the limiting member is threadedly connected to the rotating shaft, the limiting protrusion and the limiting member form an adjustable limiting groove, and the first inner ring and the second inner ring are spaced and clamped in the adjustable limiting groove.

[0013] Optionally, the bearing seat is provided with a first limiting groove and a second limiting groove at intervals along the axial direction of the rotating shaft, the first outer ring is clamped in the first limiting groove, and the second outer ring is clamped in the second limiting groove.

[0014] Optionally, the rotating device further includes a driving assembly, and the driving assembly is used to drive the rotating shaft to rotate.

[0015] Optionally, the driving component includes a magnetic component and a power-on component, the power-on component is arranged in the shell, the power-on component is used to connect to an external power-on device, the magnetic component is arranged on the outer wall of the rotating shaft, and the magnetic component and the power-on component rotate the rotating shaft through electromagnetic induction.

[0016] Optionally, the magnetic assembly includes a yoke and a plurality of magnets, the yoke is sleeved on the outer side wall of the rotating shaft, and the magnets are mounted on the yoke.

[0017] Optionally, the outer side wall of the magnetic yoke is evenly provided with a plurality of slots, and the magnet is clamped in the slots.

[0018] Optionally, the power-carrying component includes a silicon steel sheet and a plurality of coils, the silicon steel sheet is annular, the coils are installed on the inner side wall of the silicon steel sheet, and the silicon steel sheet is installed on the inner side of the shell.

[0019] An embodiment of the present application also provides a rotating device, including the rotating device described above.

[0020] The rotating device and rotating equipment provided by the embodiments of the present application have the following beneficial effects: the rotating device of the embodiment of the present application fixes the first outer ring of the first ball bearing through the bearing seat, and then fixes the first inner ring of the first ball bearing through the limit assembly, thereby preventing the first inner ring from moving along the axial direction of the rotating shaft, preventing the first inner ring from generating sliding friction with the outer wall of the rotating shaft, and reducing the noise generated when the rotating shaft rotates;

[0021] Since the rotating device of the embodiment of the present application includes the above-mentioned rotating device, it has the beneficial effects brought by the above-mentioned rotating device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1A schematic diagram of the three-dimensional structure of the rotating device provided in an embodiment of the present application;

[0024] Figure 2 A top view of the rotating device provided in an embodiment of the present application;

[0025] Figure 3 For the Figure 2 Cross-sectional structural diagram along line AA;

[0026] Figure 4 Schematic diagram of the exploded structure of the rotating device provided in an embodiment of the present application.

[0027] Among them, the reference numerals in the figures are:

[0028] 1. Shell;

[0029] 2. Rotating shaft;

[0030] 3. Bearing seat; 31. First limiting groove; 32. Second limiting groove;

[0031] 4. First ball bearing; 41. First inner ring; 42. First outer ring;

[0032] 5. Limiting assembly; 51. Limiting convex portion; 52. Limiting member;

[0033] 6. Second ball bearing; 61. Second inner ring; 62. Second outer ring;

[0034] 7. Magnetic assembly; 71. Magnetic yoke; 72. Magnet;

[0035] 8. Power-carrying components; 81. Silicon steel sheet; 82. Coil;

[0036] 9. Measuring component; 91. Grating; 92. Reading head. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0038] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0041] See also Figure 1 、 Figure 2 and Figure 3 , the rotating device provided in the embodiment of the present application is now described. The rotating device provided in the embodiment of the present application includes a housing 1, a rotating shaft 2, a bearing seat 3, a first ball bearing 4 and a limiting assembly 5. The rotating shaft 2 is rotatably inserted in the housing 1. The bearing seat 3 is installed in the housing 1. The first ball bearing 4 includes a first inner ring 41 and a first outer ring 42. The first inner ring 41 is connected to the rotating shaft 2, and the first outer ring 42 is installed in the bearing seat 3. The limiting assembly 5 is arranged in the housing 1, and the limiting assembly 5 abuts against the first inner ring 41 to fix the axial position of the first inner ring 41 on the rotating shaft 2.

[0042] The limiting assembly 5 in the embodiment of the present application may include a first baffle and a second baffle, and the first baffle and the second baffle are arranged on the outer wall of the rotating shaft 2. The first baffle, the second baffle and the outer wall of the rotating shaft 2 form a limiting groove for accommodating the first inner ring 41. The first inner ring 41 is clamped in the limiting groove to prevent the first inner ring 41 from moving axially along the rotating shaft 2.

[0043] The rotating device fixes the first outer ring 42 of the first ball bearing 4 through the bearing seat 3, and then fixes the first inner ring 41 of the first ball bearing 4 through the limit assembly 5, preventing the first inner ring 41 from moving along the axial direction of the rotating shaft 2, preventing the first inner ring 41 from generating sliding friction with the outer wall of the rotating shaft 2, and reducing the noise generated when the rotating shaft 2 rotates.

[0044] The rotating device further includes a second ball bearing 6, including a second inner ring 61 and a second outer ring 62, the second inner ring 61 is connected to the rotating shaft 2, and the first outer ring 42 and the second outer ring 62 are spaced apart and arranged on the bearing seat 3;

[0045] The limiting assembly 5 abuts against the first inner ring 41 and the first inner ring 41 to reduce the distance between the first inner ring 41 and the second inner ring 61 so as to fix the first inner ring 41 and the second inner ring 61 .

[0046] The ball bearing includes an inner ring, balls and an outer ring. The balls are arranged in the raceway between the inner ring and the outer ring. There is a gap between the balls and the outer ring and the inner ring. During the rotation of the shaft 2, the balls will move along the axial direction of the shaft 2, causing noise.

[0047] The stopper assembly 5 may further include a stopper and a pusher. The stopper is mounted on the outer wall of the rotating shaft 2. The pusher comprises a pusher portion and a pusher block. The pusher portion is mounted within the housing 1 and is in driving connection with the pusher block. The pusher block and the stopper are positioned opposite each other along the axial direction of the rotating shaft 2. The first inner ring 41 and the second inner ring 61 are spaced apart between the pusher block and the stopper. The pusher portion drives the pusher block toward the stopper to reduce the distance between the first inner ring 41 and the second inner ring 61.

[0048] On the premise that the first outer ring 42 of the first ball bearing 4 and the second outer ring 62 of the second ball bearing 6 are fixed at intervals by the bearing seat 3, the limit assembly 5 reduces the distance between the first inner ring 41 and the second inner ring 61, which can reduce the gap between the balls and the raceway, prevent the balls from moving axially along the rotating shaft 2, and further reduce noise.

[0049] Preferably, see Figure 3 The limiting assembly 5 includes a limiting protrusion 51 and a limiting member 52. The limiting protrusion 51 is arranged on the outer wall of the rotating shaft 2, and the limiting member 52 is arranged in the outer shell 1. The limiting member 52 is threadedly connected to the rotating shaft 2. The limiting protrusion 51 and the limiting member 52 form an adjustable limiting groove, and the first inner ring 41 and the second inner ring 61 are spaced apart and clamped in the adjustable limiting groove.

[0050] The limiting protrusion 51 and the limiting member 52 both protrude from the outer wall of the rotating shaft 2 to form an adjustable limiting groove. The limiting member 52 is threadedly connected to the rotating shaft 2, allowing the width of the adjustable limiting groove to be adjusted to accommodate ball bearings of different sizes. The limiting member 52 can specifically be a limiting nut.

[0051] The bearing seat 3 is provided with a first limiting groove 31 and a second limiting groove 32 at intervals along the axial direction of the rotating shaft 2 . The first outer ring 42 is clamped in the first limiting groove 31 , and the second outer ring 62 is clamped in the second limiting groove 32 .

[0052] The first limiting groove 31 and the second limiting groove 32 are arranged on the inner side wall of the bearing seat 3 at intervals along the axial direction of the rotating shaft 2. The first limiting groove 31 and the second limiting groove 32 can fix the positions of the first outer ring 42 and the second outer ring 62 to prevent the first outer ring 42 and the second outer ring 62 from moving and generating noise.

[0053] See also Figure 4The rotating device also includes a driving assembly, which is used to drive the rotating shaft 2 to rotate.

[0054] The drive assembly may include a driving gear, a driven gear, and a rotary cylinder. The driven gear is sleeved on the rotating shaft 2, meshing with the driving gear. The rotary cylinder is connected to the driving gear, and the rotating cylinder rotates the rotating shaft 2 through the driving gear and the driven gear. The power transmission through the gears can reduce the excessive torque caused by the direct drive connection between the rotary cylinder and the rotating shaft 2.

[0055] Preferably, the driving component includes a magnetic component 7 and a power-on component 8. The power-on component 8 is arranged in the shell 1. The power-on component 8 is used to connect to an external power-on device. The magnetic component 7 is arranged on the outer wall of the rotating shaft 2. The magnetic component 7 and the power-on component 8 rotate the rotating shaft 2 through electromagnetic induction.

[0056] The magnetic component 7 can be a magnet sleeved on the outer wall of the rotating shaft 2 .

[0057] The power supply component 8 can be wound around the wires in the housing 1 .

[0058] The power supply component 8 is energized by an external power supply device to generate a magnetic field, which interacts with the magnetic field generated by the magnetic component 7 to rotate the shaft 2.

[0059] Since there is no mechanical transmission, there is no need for lubricants and maintenance, and damage to the bearings is minimal.

[0060] Preferably, the magnetic assembly 7 includes a yoke 71 and a plurality of magnets 72 . The yoke 71 is sleeved on the outer wall of the rotating shaft 2 , and the magnets 72 are mounted on the yoke 71 .

[0061] The magnetic yoke 71 is generally made of soft iron, A3 steel and soft magnetic alloy with relatively high magnetic permeability. The magnetic yoke 71 is a yoke iron made of stacked silicon steel sheets 81. It is evenly and symmetrically distributed around the induction coil. Its function is to restrict the leakage magnetic field of the induction coil from spreading outward and improve the efficiency of induction.

[0062] The outer wall of the yoke 71 is evenly provided with a plurality of slots, and the magnets 72 are locked in the slots.

[0063] The slots are used to fix the magnets 72 and are evenly distributed on the outer wall of the yoke 71 , so as to make the magnetism evenly distributed, reduce torque fluctuations, and make the shaft 2 rotate smoothly.

[0064] The power supply assembly 8 includes a silicon steel sheet 81 and a plurality of coils 82 . The silicon steel sheet 81 is annular. The coils 82 are mounted on the inner side wall of the silicon steel sheet 81 . The silicon steel sheet 81 is mounted on the inner side of the housing 1 .

[0065] The silicon steel sheet 81 adopts a toothless ring structure, which can effectively reduce torque fluctuations and make the rotation of the shaft 2 more stable. At the same time, the structural design of the ring can retain torque performance.

[0066] Several coils 82 are evenly distributed and fixed on the inner wall of the silicon steel sheet 81 through specific tooling and are potted with epoxy resin. The potting material has heat dissipation properties and can effectively dissipate the heat generated by the operation of the rotating device, thereby improving the heat dissipation effect of the rotating device.

[0067] The interior of the rotating shaft 2 is hollow and is made of alloy aluminum. Compared with a rotating shaft made of solid steel, the rotating shaft 2 has a smaller mass and moment of inertia, which can achieve faster and better response speed and control accuracy.

[0068] The rotating device further includes a measuring component 9 , which is used to calculate the rotation angle of the rotating shaft 2 .

[0069] The measuring component 9 may specifically be a Hall effect sensor.

[0070] The measuring component 9 includes a grating 91 and a reading head 92 . The grating 91 is connected to the rotating shaft 2 , and the reading head 92 is installed in the housing 1 .

[0071] The grating 91 can specifically be a glass grating 91. The grating 91 is connected to the rotating shaft 2 through a limit member 52. It can be fixed after being aligned with the axis of the rotating shaft 2 through micro-adjustment. The reading head 92 is then connected and fixed to the bearing seat 3 in the housing 1 through the mounting plate. The rotation angle or number of rotations of the rotating shaft 2 can be accurately detected, effectively achieving high-precision control.

[0072] An embodiment of the present application also provides a rotating device, including the above-mentioned rotating device.

[0073] Since the rotating device of the embodiment of the present application includes the rotating device in any of the above embodiments, it has the beneficial effects brought by the rotating device in any of the above embodiments, which will not be described in detail here.

[0074] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A rotating device, characterized in that: include: shell; a rotating shaft rotatably inserted into the housing; a bearing seat, mounted in the housing; a first ball bearing, comprising a first inner ring and a first outer ring, wherein the first inner ring is connected to the rotating shaft, and the first outer ring is installed in the bearing seat; The limiting assembly is arranged in the outer shell and abuts against the first inner ring to fix the axial position of the first inner ring of the rotating shaft.

2. The rotating device according to claim 1, characterized in that It also includes a second ball bearing, including a second inner ring and a second outer ring, the second inner ring is connected to the rotating shaft, and the first outer ring and the second outer ring are spaced apart and arranged on the bearing seat; The limiting component abuts against the first inner ring and the second inner ring to reduce the distance between the first inner ring and the second inner ring, so as to fix the first inner ring and the second inner ring.

3. The rotating device according to claim 2, characterized in that The limiting assembly includes a limiting protrusion and a limiting member, the limiting protrusion is arranged on the outer wall of the rotating shaft, the limiting member is arranged in the outer shell, the limiting member is threadedly connected to the rotating shaft, the limiting protrusion and the limiting member form an adjustable limiting groove, and the first inner ring and the second inner ring are spaced and clamped in the adjustable limiting groove.

4. The rotating device according to claim 2, characterized in that The bearing seat is provided with a first limiting groove and a second limiting groove at intervals along the axial direction of the rotating shaft. The first outer ring is clamped in the first limiting groove, and the second outer ring is clamped in the second limiting groove.

5. The rotating device according to any one of claims 1 to 4, characterized in that: It also includes a driving assembly, which is used to drive the rotating shaft to rotate.

6. The rotating device according to claim 5, characterized in that The driving component includes a magnetic component and an energizing component. The energizing component is arranged in the shell and is used to connect to an external energizing device. The magnetic component is arranged on the outer wall of the rotating shaft. The magnetic component and the energizing component rotate the rotating shaft through electromagnetic induction.

7. The rotating device according to claim 6, characterized in that The magnetic assembly includes a yoke and a plurality of magnets. The yoke is sleeved on the outer wall of the rotating shaft, and the magnets are installed on the yoke.

8. The rotating device according to claim 7, characterized in that The outer side wall of the magnetic yoke is evenly provided with a plurality of slots, and the magnets are locked in the slots.

9. The rotating device according to claim 6, characterized in that The power-on component includes a silicon steel sheet and a plurality of coils. The silicon steel sheet is annular. The coils are installed on the inner side wall of the silicon steel sheet. The silicon steel sheet is installed on the inner side of the shell.

10. A rotating device, characterized in that: The invention comprises the rotating device according to any one of claims 1 to 9.

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