Electrical rotary joint convenient for switching angle on-off
Through the cooperation of Hall-type sensors and solenoid valves, the problem that traditional electrical rotary joints cannot automatically cut off the power supply is solved, and the safety control of electrical rotary joints is achieved at a specific angle is achieved.
Patent Information
- Application Number
- CN202422573808.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Traditional electrical rotary joints cannot automatically cut off the power when equipment such as industrial robotic arms or cranes rotate to a specific angle, which poses safety risks.
It uses Hall-type sensors and solenoid valves to connect to industrial computers, drive the signal disc to rotate through the shaft, calculate the angle and control the solenoid valve to open or close, so as to automatically cut off the power supply at a specific angle.
It realizes that the electrical rotary joints automatically cut off the power supply at a specific angle, improving the safety and controllability of the equipment.
Smart Images
Figure CN223261028U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical connectors, in particular to an electrical rotary connector which is convenient for switching angles on and off. Background Art
[0002] An electrical rotary joint, also known as a slip ring or slip ring, is a device that allows electrical signals or power to be transmitted between a rotating part and a stationary part. It is commonly used in applications that require continuous rotation, such as radar antennas, industrial robots, wind turbines, and other equipment.
[0003] Since most electrical rotary joints transmit power and electrical signals between two rotating parts through 360-degree unlimited continuous rotation, there are certain safety limits during the operation of equipment such as industrial robotic arms or cranes. Excessive rotation may cause certain dangers during use of the equipment. The use of traditional electrical rotary joints cannot meet the requirements of automatically cutting off the power supply when these equipment rotates to a specific angle.
[0004] Therefore, it is necessary to design an electrical rotary joint that is easy to switch the angle on and off. Utility Model Content
[0005] In order to overcome the disadvantage that there are certain safety limits during the operation of equipment such as industrial robotic arms or cranes, excessive rotation may cause certain dangers during the use of the equipment, and the use of traditional electrical rotary joints cannot meet the demand of automatically cutting off the power supply when these equipment rotates to a specific angle, the utility model provides an electrical rotary joint that is easy to switch the angle on and off.
[0006] Technical solution: An electrical rotary joint that is easy to switch the angle of on and off, including a sleeve, a rotating sleeve, a rotating shaft, a fixed disk, a first connecting pipe, a first solenoid valve, a first connecting pipe, a first connecting head, a second connecting pipe, a second connecting pipe, a second solenoid valve and a second connecting head. A rotating sleeve is rotatably arranged inside the sleeve, a rotating shaft is passed through the rotating sleeve, one end of the rotating sleeve is fixedly connected to the fixed disk, the rotating shaft passes through the fixed disk, ventilation grooves are provided on both sides of the fixed disk, a first annular groove is provided in the middle of the sleeve, a first connecting pipe connected to the first annular groove is connected to one side of the sleeve, and the first connecting pipe is away from one end of the rotating sleeve. A first solenoid valve is installed, wherein one ventilation groove is connected to the first annular groove by a first connecting pipe, a second annular groove is opened on the upper inner part of the sleeve, and a second connecting pipe connected to the second annular groove is connected to the other side of the sleeve. A second solenoid valve is installed at the end of the second connecting pipe away from the rotating sleeve, and the second annular groove is connected to the other ventilation groove by a second connecting pipe. A support plate, a Hall sensor and a signal disk are also included. A support plate is installed on one side of the sleeve, a Hall sensor is installed on the support plate, and a signal disk is installed on the rotating shaft. The Hall sensor is connected to the first solenoid valve and the second solenoid valve signals.
[0007] In a preferred embodiment of the present invention, the Hall sensor and the signal disk are at the same level, and the signal disk is provided with missing teeth.
[0008] In a preferred embodiment of the present invention, an annular sleeve and a bearing are further included. Two annular grooves are opened in the lower part of the sleeve. Two annular sleeves are installed at the lower part of the rotating sleeve. Bearings are installed on the annular sleeves. The bearings slide in adjacent annular grooves.
[0009] In a preferred embodiment of the present invention, a first oil guide pipe and a second oil guide pipe are further included. An annular oil guide groove is provided on both the sleeve and the rotating sleeve. The annular oil guide grooves on the sleeve and the rotating sleeve together form an annular groove. The first oil guide pipe connected to the annular oil guide groove passes through the upper part of the rotating sleeve, and the annular slide groove and the annular oil guide groove are connected via the second oil guide pipe.
[0010] In a preferred embodiment of the present invention, a connecting plate is further included. A plurality of connecting plates are fixedly connected to the upper portion of the sleeve along the circumferential direction, and mounting holes are provided on the connecting plates.
[0011] In a preferred embodiment of the present invention, a coupling is further included, and both ends of the rotating shaft are connected to the coupling.
[0012] Compared with the prior art, the present invention has the following advantages: by connecting the Hall sensor, the first solenoid valve and the second solenoid valve to the industrial computer, the rotating shaft drives the signal disk to rotate, so that the tooth gap between the Hall sensor and the signal teeth on the signal disk changes, thereby calculating the angle of rotation of the signal disk. The industrial computer controls the opening or closing of the first solenoid valve and the second solenoid valve, so that the pneumatic component is in a closed state when it rotates to a specified angle, thereby achieving the purpose of conveniently controlling the switching angle of the electrical rotary joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0014] Figure 2 It is a schematic three-dimensional sectional structural diagram of the sleeve, rotating sleeve and rotating shaft of the utility model.
[0015] Figure 3 It is a schematic three-dimensional cross-sectional structure diagram of the rotating sleeve, the first connecting pipe and the second connecting pipe of the utility model.
[0016] Figure 4 It is a schematic three-dimensional cross-sectional structure diagram of the sleeve, the first oil guide pipe and the second oil guide pipe of the utility model.
[0017] Among them, the above-mentioned drawings include the following drawing marks: 1. sleeve, 2. rotating sleeve, 3. rotating shaft, 4. fixed disk, 5. first annular groove, 6. first connecting pipe, 7. first solenoid valve, 8. first connecting pipe, 9. ventilation groove, 10. first connecting head, 11. second annular groove, 12. second connecting pipe, 13. second connecting pipe, 14. second solenoid valve, 15. connecting plate, 16. second connecting head, 17. support plate, 18. Hall sensor, 19. signal disk, 20. annular groove, 21. annular sleeve, 22. bearing, 23. annular oil guide groove, 24. first oil guide pipe, 25. second oil guide pipe, 26. coupling. DETAILED DESCRIPTION
[0018] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those skilled in the art will recognize that terms such as "above," "below," "upwardly," and "downwardly" are used to describe the drawings and are not intended to limit the scope of the present invention as defined by the appended claims. Numerical designations such as "first" and "second" are merely illustrative and are not intended to limit the scope of the present invention in any way.
[0019] Example 1: An electrical rotary joint that is easy to switch angles, see Figures 1-4As shown, it includes a sleeve 1, a rotating sleeve 2, a rotating shaft 3, a fixed disk 4, a first connecting pipe 6, a first solenoid valve 7, a first connecting pipe 8, a first connecting head 10, a second connecting pipe 12, a second connecting pipe 13, a second solenoid valve 14 and a second connecting head 16. A rotating sleeve 2 is rotatably arranged inside the sleeve 1. Three connecting plates 15 are fixedly connected to the upper part of the sleeve 1 along the circumferential direction. The connecting plates 15 are provided with mounting holes. The sleeve 1 is fixed by passing bolts through the mounting holes on the connecting plates 15. The rotating sleeve 2 is penetrated by a rotating shaft 3. Both ends of the rotating shaft 3 are connected to couplings 26 at the upper and lower ends. The rotating shaft 3 is connected to the driving component through the coupling 26. One end of the rotating sleeve 2 is fixedly connected to the fixed disk 4 by welding. The rotating shaft 3 penetrates the fixed disk 4. Ventilation grooves 9 are provided on both sides of the fixed disk 4. A first annular groove 5 is provided in the middle of the sleeve 1. The right side of the sleeve 1 is connected to a first connecting pipe 6 connected to the first annular groove 5. The right end of the first connecting pipe 6 is installed by bolt connection. The first solenoid valve 7, the ventilation groove 9 on the right is connected to the first annular groove 5 through the first connecting pipe 8, the second annular groove 11 is opened in the upper part of the sleeve 1, and the left side of the sleeve 1 is connected to a second connecting pipe 13 connected to the second annular groove 11, and the left end of the second connecting pipe 13 is installed with a second solenoid valve 14, the second annular groove 11 and the ventilation groove 9 on the left are connected through a second connecting pipe 12, and also include a support plate 17, a Hall sensor 18 and a signal disk 19, a support plate 17 is installed on the right side of the sleeve 1, and a Hall sensor 18 is installed on the support plate 17 by bolt connection. The Hall sensor 18 is composed of a Hall chip and a permanent magnet. A signal disk 19 is installed on the rotating shaft 3, and the Hall sensor 18 is connected to the first solenoid valve 7 and the second solenoid valve 14 signals. The Hall sensor 18 and the signal disk 19 are at the same horizontal height. The signal disk 19 is provided with missing teeth, and the missing teeth are used to provide a missing tooth signal to the industrial computer through the Hall sensor 18.
[0020] When using an electrical rotary joint, first connect the Hall sensor 18, the first solenoid valve 7 and the second solenoid valve 14 to the industrial computer, use bolts to pass through the mounting holes on the connecting plate 15 to fix the sleeve 1, and then connect the rotating shaft 3 to the output shaft of the driving device through the coupling 26, then connect one output end of the air pump to the first solenoid valve 7, and the other output end of the air pump to the second solenoid valve 14, and then connect the two pneumatic components to the first connector 10 and the second connector 16 respectively, and then start the driving device. The output shaft of the driving device drives the rotating shaft 3, the rotating sleeve 2, the fixed disk 4 and the signal disk 19 to rotate through the coupling 26, and then start the air pump. The others enter the first connecting pipe 6 and the second connecting pipe 13 respectively through the first solenoid valve 7 and the second solenoid valve 14, and then enter the first annular groove 5 and the second annular groove 11 respectively because the first connecting pipe 6 and the second connecting pipe 13 enter the two ventilation pipes respectively through the first connecting pipe 8 and the second connecting pipe 12. The gas is discharged from the slot 9 through the first connector 10 and the second connector 16, thereby realizing the control of the pneumatic components in the two rotating states. When the pneumatic component needs to be controlled to disconnect when it rotates to a specific angle, the angle to be disconnected is input on the industrial computer, and the shaft 3 drives the signal disk 19 to rotate, so that the tooth gap between the Hall sensor 18 and the signal teeth on the signal disk 19 changes, and the magnetic field strength of the Hall sensor 18 also changes. The missing tooth is used to provide a missing tooth signal to the industrial computer through the Hall sensor 18, so as to calculate the angle of rotation of the signal disk 19. When the shaft 3 drives the angle of the first connector 10 and the second connector 16 through the fixed disk 4, the Hall sensor 18 transmits the rotation angle signal to the industrial computer. The industrial computer controls the first solenoid valve 7 and the second solenoid valve 14 to open or close, so that the pneumatic component is in a closed state when it rotates to the specified angle, thereby achieving the purpose of conveniently controlling the switching angle of the electrical rotary joint.
[0021] Example 2: Based on Example 1, refer to Figure 2-Figure 4 As shown, it also includes an annular sleeve 21 and a bearing 22. Two annular grooves 20 are opened in the lower part of the sleeve 1. Two annular sleeves 21 are installed at the lower part of the rotating sleeve 2. Bearings 22 are installed on the annular sleeves 21. The bearings 22 slide in adjacent annular grooves 20.
[0022] When the rotating shaft 3 drives the rotating sleeve 2 to rotate, the rotating sleeve 2 drives the annular sleeve 21 and the bearing 22 to slide in the annular groove 20, so that the rotating sleeve 2 rotates smoothly in the sleeve 1 and reduces the resistance of the rotating sleeve 2 during rotation.
[0023] See Figure 4As shown, it also includes a first oil guide pipe 24 and a second oil guide pipe 25. An annular oil guide groove 23 is opened on the sleeve 1 and the rotating sleeve 2. The annular oil guide groove 23 on the sleeve 1 and the rotating sleeve 2 together form an annular groove. The first oil guide pipe 24 connected to the annular oil guide groove 23 passes through the upper part of the rotating sleeve 2, and the annular oil guide groove 23 is connected to the annular slide 20 through the second oil guide pipe 25.
[0024] By adding lubricating oil into the first oil guide pipe 24, the lubricating oil enters the annular oil guide groove 23 through the first oil guide pipe 24, then enters the second oil guide pipe 25 from the annular oil guide groove 23, and then falls on the bearing 22 from the second oil guide pipe 25, thereby achieving the purpose of lubricating the bearing 22 and reducing the resistance of the rotating sleeve 2 when rotating.
[0025] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art may make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.
Claims
1. An electrical rotary joint that is convenient for switching angles, comprising a sleeve (1), a rotary sleeve (2), a rotating shaft (3), a fixed disk (4), a first connecting pipe (6), a first solenoid valve (7), a first connecting pipe (8), a first connector (10), a second connecting pipe (12), a second connecting pipe (13), a second solenoid valve (14) and a second connector (16), wherein a rotary sleeve (2) is rotatably arranged inside the sleeve (1), a rotating shaft (3) passes through the rotary sleeve (2), a fixed disk (4) is fixedly connected to one end of the rotary sleeve (2), the rotating shaft (3) passes through the fixed disk (4), ventilation grooves (9) are provided on both sides of the fixed disk (4), and a first annular Groove (5), one side of the sleeve (1) is connected to a first connecting pipe (6) communicating with the first annular groove (5), the end of the first connecting pipe (6) away from the rotating sleeve (2) is installed with a first electromagnetic valve (7), one ventilation groove (9) is communicated with the first annular groove (5) through a first communicating pipe (8), a second annular groove (11) is opened in the upper part of the sleeve (1), the other side of the sleeve (1) is connected to a second connecting pipe (13) communicating with the second annular groove (11), the end of the second connecting pipe (13) away from the rotating sleeve (2) is installed with a second electromagnetic valve (14), the second annular groove (11) is communicated with the other ventilation groove (9) through a second communicating pipe (12), and the invention is characterized in that: The invention also includes a support plate (17), a Hall sensor (18) and a signal disk (19). The support plate (17) is installed on one side of the sleeve (1), the Hall sensor (18) is installed on the support plate (17), and the signal disk (19) is installed on the rotating shaft (3). The Hall sensor (18) is connected to the first electromagnetic valve (7) and the second electromagnetic valve (14) for signal transmission.
2. An electrical rotary joint that is easy to switch angles according to claim 1, characterized in that: The Hall sensor (18) and the signal disk (19) are at the same level, and the signal disk (19) is provided with missing teeth.
3. An electrical rotary joint that is easy to switch angles according to claim 2, characterized in that: The invention also comprises an annular sleeve (21) and a bearing (22). Two annular chutes (20) are provided in the lower part of the sleeve (1). Two annular sleeves (21) are installed in the lower part of the rotating sleeve (2). The annular sleeves (21) are equipped with bearings (22). The bearings (22) slide in adjacent annular chutes (20).
4. An electrical rotary joint that is easy to switch angles according to claim 3, characterized in that: The invention also includes a first oil guide pipe (24) and a second oil guide pipe (25). An annular oil guide groove (23) is provided on the sleeve (1) and the rotating sleeve (2). The annular oil guide groove (23) on the sleeve (1) and the rotating sleeve (2) together form an annular groove. The upper part of the rotating sleeve (2) is penetrated by a first oil guide pipe (24) in communication with the annular oil guide groove (23). The annular slide groove (20) and the annular oil guide groove (23) are in communication via the second oil guide pipe (25).
5. An electrical rotary joint that is easy to switch angles according to claim 4, characterized in that: It also includes connecting plates (15). A plurality of connecting plates (15) are fixedly connected to the upper part of the sleeve (1) along the circumferential direction, and mounting holes are provided on the connecting plates (15).
6. An electrical rotary joint that is easy to switch angles according to claim 5, characterized in that: It also includes a coupling (26), and both ends of the rotating shaft (3) are connected with the coupling (26).