Magnetic type multistage coupler

Abstract

The utility model provides a magnetic type multistage coupler, which relates to the technical field of couplers, and comprises a shell, one side of the inner wall of the shell is rotatably connected with a permanent magnet rotor, the inner wall of the permanent magnet rotor is fixedly connected with an air gap controller, and the air gap controller is arranged on the inner wall of the shell. The inner wall of the air gap controller is fixedly connected with a rotating shaft load shaft, the outer surface of the permanent magnet rotor is rotatably connected with a conductor rotor, the conductor rotor is arranged on the other side of the inner wall of the shell, the inner wall of the conductor rotor is fixedly connected with a connecting piece, and the connecting piece is arranged on the inner wall of the shell. By arranging the two clamping plates, under the action of the two threaded rods, the threaded rods can drive the clamping plates to move until the motor shaft is completely clamped by the two clamping plates, auxiliary fixing can be carried out between the motor shaft and the connecting piece, connection between the motor shaft and the connecting piece can be prevented from loosening, and the motor shaft is prevented from being damaged. Therefore, the load power of the coupler is prevented from being reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of couplers, in particular to a magnetic multi-stage coupler. Background Art

[0002] The magnetic multi-stage coupler, also known as the magnetic coupler, is mainly composed of three parts: a copper rotor, a permanent magnet rotor, and a controller. Generally, the copper rotor is connected to the motor shaft, and the permanent magnet rotor is connected to the load shaft. Compared with the frequency converter, the stability and comparability are higher than the frequency converter, which is particularly prominent under high power conditions. The adaptability to harsh working environments and maintenance-free performance are also not possessed by the frequency converter.

[0003] The conductor rotor of the magnetic multi-stage coupler is connected to the motor shaft through a connector, and the conductor rotor is then controlled by the motor shaft. However, when the motor shaft rotates continuously at high speed, the connection between the motor shaft and the connector may become loose, reducing the transmission efficiency of the motor shaft, and thus causing the load power of the coupler to decrease. Utility Model Content

[0004] The utility model proposes a magnetic multi-stage coupler to solve the problem that when the motor shaft rotates continuously at high speed, the connection between the motor shaft and the connecting member may become loose, thereby reducing the transmission efficiency of the motor shaft and further causing the load power of the coupler to decrease.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a magnetic multi-stage coupler, comprising a shell, a permanent magnet rotor is rotatably connected to one side of the inner wall of the shell, the inner wall of the permanent magnet rotor is fixedly connected to an air gap controller, the air gap controller is arranged on the inner wall of the shell, the inner wall of the air gap controller is fixedly connected to a rotating shaft load shaft, the outer surface of the permanent magnet rotor is rotatably connected to a conductor rotor, the conductor rotor is arranged on the other side of the inner wall of the shell, the inner wall of the conductor rotor is fixedly connected to a connecting piece, the connecting piece is arranged on the inner wall of the shell, the inner wall of the connecting piece is provided with a motor shaft, an auxiliary device is provided between the motor shaft and the connecting piece, the auxiliary device comprises two extension plates, one end of the two extension plates is symmetrically fixedly connected to the outer surface of the connecting piece, the two extension plates are fixedly connected to the side plates away from each other, the inner wall of the side plate is threadedly connected to a threaded rod, one end of the threaded rod is rotatably connected to the auxiliary plate, a splint is provided on one side of the auxiliary plate, the two splints are arranged on the outer surface of the motor shaft, and a convenient disassembly device is provided between the auxiliary plate and the splint.

[0006] The effect achieved by the above components is: by setting two clamping plates, under the action of two threaded rods, the threaded rods are rotated, and the threaded rods will extend and retract on the inner wall of the side plate. During the extension and retraction process, the threaded rods will drive the clamping plates connected to the auxiliary plates to move synchronously until the two clamping plates completely clamp the motor shaft, thereby assisting in fixing the motor shaft and the connecting piece, which is beneficial to prevent the connection between the motor shaft and the connecting piece from loosening, and thereby preventing the load power of the coupler from decreasing.

[0007] Preferably, a round rod is fixedly connected to one side of the auxiliary plate, and the outer surface of the round rod is slidably connected to the inner wall of the side plate.

[0008] The effect achieved by the above components is: by setting the round rod, when the splint moves under the action of the threaded rod, the splint will drive the round rod to slide synchronously on the inner wall of the side plate, which can limit the splint.

[0009] Preferably, one end of the threaded rod is fixedly connected to an operating block, and a protrusion is provided on the outer surface of the operating block.

[0010] The effect achieved by the above components is: by setting the operating block, rotating the operating block can drive the threaded rod to rotate, and at the same time, the outer surface of the operating block is provided with a protrusion, which can effectively increase the friction force of the outer surface of the operating block and have an anti-slip effect when rotating the operating block.

[0011] Preferably, the outer surface of the threaded rod is threadedly connected with a nut, and the nut is arranged between the clamping plate and the side plate.

[0012] The effect achieved by the above components is: by setting a nut and rotating the nut so that one side of the nut abuts against one side of the side plate, one end of the threaded rod can be limited, which is beneficial to prevent the clamping of the motor shaft by the clamping plate from loosening.

[0013] Preferably, the adjacent sides of the two clamping plates are fixedly connected with rubber plates, and one side of the rubber plates is evenly provided with protrusions.

[0014] The effect achieved by the above components is that by providing the rubber plate with protrusions, the friction force on the clamping side of the clamping plates can be increased, so that the clamping of the motor shaft by the two clamping plates is more stable.

[0015] Preferably, the easy-to-disassemble device includes four mounting blocks, which are symmetrically fixed to both sides of the auxiliary plate, and bolts are inserted into the inner walls of the mounting blocks, and the outer surfaces of the bolts are threadedly inserted into the inner wall of the splint.

[0016] The effect achieved by the above components is: by setting up a mounting block, inserting the bolt into the inner wall of the mounting block, and rotating the bolt so that the bolt enters the inner wall of the splint, the auxiliary plate and the splint can be fixed, and at the same time the splint can be disassembled, thereby facilitating separate maintenance and replacement of the splint.

[0017] Preferably, a clamping strip is fixedly connected to one side of the auxiliary plate, a clamping slot is provided on one side of the clamping plate, and the outer surface of the clamping strip is inserted into the inner wall of the clamping slot.

[0018] The effect achieved by the above components is: by providing the card strip and the card slot, the card strip is inserted into the inner wall of the card slot, so that the splint can be quickly positioned, thereby facilitating the installation of the splint.

[0019] Preferably, one side of the clamping plate is symmetrically fixedly connected to a limiting block, and the outer surface of the limiting block abuts against two mounting blocks and one side of the auxiliary plate.

[0020] The effect achieved by the above components is: by setting the limit blocks, auxiliary support and connection can be provided between the auxiliary plate and the clamping plate, thereby improving the stability of the overall connection structure.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] In the utility model, by setting two clamping plates, under the action of two threaded rods, the threaded rods can drive the clamping plates to move until the two clamping plates completely clamp the motor shaft, thereby auxiliary fixation between the motor shaft and the connecting piece can be performed, which is beneficial to prevent the connection between the motor shaft and the connecting piece from loosening, and further prevent the load power of the coupler from decreasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic cross-sectional structural diagram of the main body of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the housing of the utility model;

[0025] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B.

[0027] Legend: 1. Housing; 2. Permanent magnet rotor; 3. Air gap controller; 4. Load shaft; 5. Connector; 6. Motor shaft; 7. Auxiliary device; 71. Extension plate; 72. Side plate; 73. Threaded rod; 74. Clamp; 75. Round rod; 76. Operating block; 77. Nut; 78. Rubber sheet; 79. Auxiliary plate; 8. Disassembly device; 81. Mounting block; 82. Bolt; 83. Clip strip; 84. Slot; 85. Limit block; 9. Conductor rotor. DETAILED DESCRIPTION

[0028] Example 1, with reference to Figure 1-Figure 3 As shown, this embodiment discloses a magnetic multi-stage coupler, including a housing 1, a permanent magnet rotor 2 is rotatably connected to one side of the inner wall of the housing 1, an air gap controller 3 is fixedly connected to the inner wall of the permanent magnet rotor 2, the air gap controller 3 is arranged on the inner wall of the housing 1, the inner wall of the air gap controller 3 is fixedly connected to the shaft load shaft 4, the outer surface of the permanent magnet rotor 2 is rotatably connected to the conductor rotor 9, the conductor rotor 9 is arranged on the other side of the inner wall of the housing 1, the inner wall of the conductor rotor 9 is fixedly connected to a connector 5, the connector 5 is arranged on the inner wall of the housing 1, and the inner wall of the connector 5 is provided The motor shaft 6 is installed. During operation, the motor end drives the conductor rotor 9 to rotate, generating a rotating magnetic field in the air. After the magnetic field passes through the air gap between the conductor rotor 9 and the permanent magnet rotor 2, an electromotive force is induced on the conductor rotor 9, which stimulates an induced current, thereby generating an induced torque on the conductor rotor 9. The induced torque generates a rotational torque, which drives the passive end of the coupler to rotate and realizes contactless transmission of power. The permanent magnet rotor 2 is composed of multiple magnets with different magnetic forces connected together, and the magnets are evenly arranged and fixed with the strength of the magnetic force. The permanent magnet rotor 2 can realize multi-stage transmission of power. An auxiliary device 7 is provided between the motor shaft 6 and the connecting member 5. The auxiliary device 7 includes two extension plates 71. One end of the two extension plates 71 is symmetrically fixedly connected to the outer surface of the connecting member 5. The two extension plates 71 are fixedly connected to the side plates 72 on the side away from each other. The inner wall of the side plate 72 is threadedly connected to a threaded rod 73. One end of the threaded rod 73 is rotatably connected to an auxiliary plate 79. A clamping plate 74 is provided on one side of the auxiliary plate 79. The two clamping plates 74 are provided on the outer surface of the motor shaft 6. The auxiliary plate 79 and A disassembly device 8 is provided between the clamping plates 74. By setting two clamping plates 74, under the action of the two threaded rods 73, the threaded rods 73 are rotated, and the threaded rods 73 will be extended and retracted on the inner wall of the side plate 72. During the extension and retraction process, the threaded rods 73 will drive the clamping plates 74 connected to the auxiliary plates 79 to move synchronously until the two clamping plates 74 completely clamp the motor shaft 6. This can assist in fixing the motor shaft 6 and the connecting member 5, which is beneficial to prevent the connection between the motor shaft 6 and the connecting member 5 from loosening, and further prevent the load power of the coupler from decreasing.

[0029] Reference Figure 2 and Figure 3When the locking cam 75 is unlocked, the locking cam 73 is unlocked, and the locking cam 73 is unlocked, so that the winch 72 can be unlocked.

[0030] Reference Figure 2 and Figure 3 As shown, the outer surface of the threaded rod 73 is threadedly connected with a nut 77, and the nut 77 is set between the clamping plate 74 and the side plate 72. By setting the nut 77 and rotating the nut 77 so that one side of the nut 77 abuts against one side of the side plate 72, one end of the threaded rod 73 can be limited, which helps to prevent the clamping plate 74 from loosening the clamping of the motor shaft 6; the two clamping plates 74 are fixedly connected to the side where they are close to each other with a rubber plate 78, and one side of the rubber plate 78 is evenly provided with protrusions. By providing a rubber plate 78 with protrusions, the friction force on the clamping side of the clamping plate 74 can be increased, making the clamping of the motor shaft 6 by the two clamping plates 74 more secure.

[0031] Reference Figure 2 and Figure 4 As shown, the disassembly device 8 includes four mounting blocks 81, and the four mounting blocks 81 are symmetrically fixedly connected to the two sides of the auxiliary plate 79 respectively. A bolt 82 is inserted into the inner wall of the mounting block 81, and the outer surface of the bolt 82 is threadedly inserted into the inner wall of the splint 74. By setting the mounting block 81, the bolt 82 is inserted into the inner wall of the mounting block 81, and the bolt 82 is rotated so that the bolt 82 enters the inner wall of the splint 74, the auxiliary plate 79 and the splint 74 can be fixed, and the splint 74 can be detachable, which facilitates the separate maintenance and replacement of the splint 74.

[0032] Reference Figure 2 and Figure 4 As shown, one side of the auxiliary plate 79 is fixedly connected with a clamping strip 83, and a clamping slot 84 is opened on one side of the splint 74. The outer surface of the clamping strip 83 is inserted into the inner wall of the clamping slot 84. By setting the clamping strip 83 and the clamping slot 84, the clamping strip 83 is inserted into the inner wall of the clamping slot 84, so that the splint 74 can be quickly positioned, thereby facilitating the installation of the splint 74; one side of the splint 74 is symmetrically fixedly connected with a limiting block 85, and the outer surface of the limiting block 85 abuts against the two mounting blocks 81 and one side of the auxiliary plate 79. By setting the limiting block 85, the auxiliary plate 79 and the splint 74 can be auxiliary supported and connected, thereby improving the stability of the overall connection structure.

[0033] Working principle: When auxiliary fixation is needed between the motor shaft 6 and the connecting member 5, the two operating blocks 76 are rotated to drive the threaded rod 73 to rotate. The threaded rod 73 will expand and contract on the inner wall of the side plate 72. Under the limit of the round rod 75, the threaded rod 73 will drive the clamping plate 74 connected to the auxiliary plate 79 to move synchronously until the rubber plate 78 on one side of the two clamping plates 74 completely clamps the motor shaft 6. Then, the nut 77 is rotated so that one side of the nut 77 abuts against one side of the side plate 72. This can limit one end of the threaded rod 73, which is beneficial to prevent the clamping of the clamping plate 74 on the motor shaft 6 from loosening. Then, the motor shaft 6 and the connecting member 5 can be auxiliary fixed, which is helpful to prevent the connection between the motor shaft 6 and the connecting member 5 from loosening, and further prevent the load power of the coupler from decreasing; when the splint 74 needs to be installed, the card strip 83 is inserted into the inner wall of the card slot 84, and the limit block 85 is inserted between the two mounting blocks 81, so that the limit block 85 abuts against the two mounting blocks 81 and one side of the auxiliary plate 79, and then the bolt 82 is inserted into the inner wall of the mounting block 81, and the bolt 82 is rotated so that the bolt 82 enters the inner wall of the splint 74, so that the auxiliary plate 79 and the splint 74 can be fixed.

Claims

1. A magnetic multi-stage coupler, comprising a housing (1), characterized in that: A permanent magnet rotor (2) is rotatably connected to one side of the inner wall of the housing (1), an air gap controller (3) is fixedly connected to the inner wall of the permanent magnet rotor (2), the air gap controller (3) is arranged on the inner wall of the housing (1), the inner wall of the air gap controller (3) is fixedly connected to a rotating shaft load shaft (4), the outer surface of the permanent magnet rotor (2) is rotatably connected to a conductor rotor (9), the conductor rotor (9) is arranged on the other side of the inner wall of the housing (1), the inner wall of the conductor rotor (9) is fixedly connected to a connecting piece (5), the connecting piece (5) is arranged on the inner wall of the housing (1), the inner wall of the connecting piece (5) is provided with a motor shaft (6), the motor shaft (6) and An auxiliary device (7) is provided between the connecting members (5), and the auxiliary device (7) includes two extension plates (71), one end of the two extension plates (71) is symmetrically fixedly connected to the outer surface of the connecting member (5), and the two sides of the two extension plates (71) away from each other are fixedly connected to a side plate (72), the inner wall of the side plate (72) is threadedly connected to a threaded rod (73), and one end of the threaded rod (73) is rotatably connected to an auxiliary plate (79), and a clamping plate (74) is provided on one side of the auxiliary plate (79), and the two clamping plates (74) are provided on the outer surface of the motor shaft (6), and a convenient disassembly device (8) is provided between the auxiliary plate (79) and the clamping plate (74).

2. The magnetic multi-stage coupler according to claim 1, characterized in that: A round rod (75) is fixedly connected to one side of the auxiliary plate (79), and the outer surface of the round rod (75) is slidably connected to the inner wall of the side plate (72).

3. The magnetic multi-stage coupler according to claim 1, characterized in that: One end of the threaded rod (73) is fixedly connected to an operating block (76), and a protrusion is provided on the outer surface of the operating block (76).

4. The magnetic multi-stage coupler according to claim 1, characterized in that: The outer surface of the threaded rod (73) is threadedly connected to a nut (77), and the nut (77) is arranged between the clamping plate (74) and the side plate (72).

5. The magnetic multi-stage coupler according to claim 1, characterized in that: The adjacent sides of the two clamping plates (74) are both fixedly connected with a rubber plate (78), and one side of the rubber plate (78) is evenly provided with protrusions.

6. The magnetic multi-stage coupler according to claim 1, characterized in that: The convenient disassembly device (8) includes four mounting blocks (81), and the four mounting blocks (81) are symmetrically fixedly connected to the two sides of the auxiliary plate (79). The inner wall of the mounting block (81) is provided with a bolt (82), and the outer surface of the bolt (82) is threadedly inserted into the inner wall of the clamping plate (74).

7. The magnetic multi-stage coupler according to claim 6, characterized in that: A clamping strip (83) is fixedly connected to one side of the auxiliary plate (79), a clamping slot (84) is provided on one side of the clamping plate (74), and the outer surface of the clamping strip (83) is inserted into the inner wall of the clamping slot (84).

8. The magnetic multi-stage coupler according to claim 7, characterized in that: One side of the clamping plate (74) is symmetrically fixedly connected to a limiting block (85), and the outer surface of the limiting block (85) abuts against one side of the two mounting blocks (81) and the auxiliary plate (79).

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