A stator assembly installation device and method for a two-section motor magnetic circuit

Abstract

The present invention discloses a stator assembly installation device and method for a two-section motor magnetic circuit, which relates to the technical field of motor tooling. The device includes a base, an inner positioning ring, an outer positioning ring, a gland, a magnetic isolation block and a movable support block. The base is coaxially connected with the inner positioning ring, the inner positioning ring is coaxially and movably connected with the gland, and the outer positioning ring is coaxially sleeved outside the gland. A ring cavity for accommodating magnetic steel blocks is formed between the inner positioning ring and the outer positioning ring. The magnetic steel blocks and the magnetic isolation blocks have the same shape and size. A plurality of slots and pads are arranged at intervals on the base. The movable support blocks are movably arranged in the slots. The magnetic isolation blocks are arranged above the movable support blocks and can fall and be inserted into the slots. The distance between the gland and the pads is at least the thickness of one magnetic steel block. The outer diameters of the pads and the gland are both larger than the outer diameter of the inner positioning ring. A material placing groove is arranged on the gland, and the material placing groove can allow one magnetic steel block to pass through. The present invention solves the interference of the mutual repulsive force of the magnetic steel parts on the assembly, and ensures the efficiency and safety of the assembly process.

Description

Technical Field

[0001] The present invention relates to the technical field of motor tooling, and particularly to an installation device and method for a stator assembly of a dual-section motor magnetic circuit. Background Art

[0002] In the outer magnetic circuit of a motor, the stator assembly of the magnetic circuit mainly consists of 2 sets of main magnet assemblies (each set is composed of multiple magnet tiles) and 3 auxiliary magnetic rings. The surface magnetic intensity of the main magnet and the auxiliary magnetic ring parts is above 0.3T, and there is a large repulsive force between them. The gap between the main magnets is <0.02mm. At the same time, the permanent magnetic materials of the magnet tiles and magnetic ring parts are brittle and are easily damaged during collisions. Currently, the installation method of loading the magnet tiles and magnetic rings into the outer magnetic poles one by one still has problems such as parts flying out and injuring operators and parts damage caused by the repulsive force between the permanent magnetic parts. Therefore, there is an urgent need for an installation device for the stator assembly of a dual-section motor magnetic circuit to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an installation device and method for a stator assembly of a dual-section motor magnetic circuit to solve the problems existing in the above-mentioned prior art, so that the assembly operation of the permanent magnetic parts of the stator assembly of the magnetic circuit is simple and the parts will not be damaged during the process, and the parts will not fly out and injure the operator.

[0004] To achieve the above purpose, the present invention provides the following solution:

[0005] The present invention provides an installation device for a stator assembly of a dual-section motor magnetic circuit, including a base, an inner positioning ring, an outer positioning ring, a gland, a magnetic isolation block, and a movable support block. The inner positioning ring is coaxially connected to the base, the gland is coaxially and movably connected to the inner positioning ring, the outer positioning ring is coaxially sleeved outside the gland, a ring cavity is formed between the inner positioning ring and the outer positioning ring, and the ring cavity is used to accommodate the magnet blocks and the magnetic isolation block. The shapes and sizes of the magnet blocks and the magnetic isolation block are exactly the same. A plurality of slots and pads are equidistantly arranged on the base, the slots and the pads are arranged at intervals, the movable support block is movably arranged in the slots, the magnetic isolation block is arranged above the movable support block and can fall and be inserted into the slots. The distance between the gland and the pads is at least the thickness of one magnet block. The outer diameters of the pads and the gland are both larger than the outer diameter of the inner positioning ring. A material placing groove is arranged on the gland, and the material placing groove can accommodate one magnet block and is communicated with the ring cavity.

[0006] Preferably, the base includes a card slot seat and a bottom plate. The bottom plate is bolted to the card slot seat. A plurality of U-shaped slots are evenly distributed at equal intervals along the circumferential direction of the outer edge of the card slot seat. The spacer between adjacent slots is the cushion block. The shape and size of the slot match the shape and size of the magnetic isolation block, so that the magnetic isolation block can fall into the slot.

[0007] Preferably, the size of the bottom plate is larger than that of the base, and the movable support block is slidably arranged on the bottom plate; the size of the cushion block on the base is larger than the inner diameter of the outer positioning ring.

[0008] Preferably, a limit pin is arranged on the bottom plate, and the limit pin is located at the open end of the slot. A waist-shaped hole is arranged in the middle of the movable support block, and the limit pin is slidably arranged in the waist-shaped hole, so that the end of the movable support block can be inserted into and detached from the slot.

[0009] Preferably, the thicknesses of the movable support block and the card slot seat are both the same as the thickness of the magnetic steel block; one slot corresponds to one magnetic isolation block.

[0010] Preferably, the inner positioning ring is a cylinder, and plug-in slots are arranged on both end faces of the cylinder. A threaded through hole is arranged between the two plug-in slots. The two plug-in slots are respectively used for plugging the base and the gland. The gland is also bolted to the threaded through hole of the inner positioning ring.

[0011] Preferably, two plug-in holes are arranged on the gland, and the plug-in holes are used for plugging the operating handle; a plurality of observation ports are evenly distributed along the circumferential direction of the gland. The observation ports are communicated with the annular cavity and are arranged opposite to the connection seam of the two magnetic steel blocks; the thickness of the gland is at least the thickness of one magnetic steel block.

[0012] Preferably, a material discharging groove and a stop block are arranged on the outer edge of the gland. The shape and size of the material discharging groove match the shape and size of the magnetic steel block. The edge of the material discharging groove is connected with the stop block by bolts or torsion springs. The stop block can rotate and block above the material discharging groove.

[0013] Preferably, the base, the inner positioning ring, the outer positioning ring, the gland, the magnetic isolation block and the movable support block are all made of non-magnetic materials.

[0014] Preferably, the inner hole of the outer positioning ring includes a cylindrical surface section and a conical surface section connected in sequence from bottom to top. The length of the cylindrical surface section is not less than the length of the magnetic steel, the length of the conical surface section is 1.2 times - 1.5 times the length of the magnetic steel, and the conical surface section inclines outward by 2° - 5°.

[0015] The present invention also relates to an installation method for a stator assembly of a two-stage motor magnetic circuit. Based on the above-mentioned installation device for the stator assembly of the two-stage motor magnetic circuit, the method specifically includes the following steps:

[0016] S1. When assembling the installation device for the stator assembly of the two-stage motor magnetic circuit, first place a plurality of the magnetic isolation blocks in the annular cavity, and ensure that each magnetic isolation block is located above the movable support block. Then rotate the gland, and sequentially place one magnetic steel block on each cushion block from the material feeding groove, so that the magnetic steel block and the magnetic isolation block form a closed loop.

[0017] S2. Rotate the gland to make the material feeding groove correspond to any one of the magnetic isolation blocks, place one magnetic steel block, and pull out the movable support block, so that the magnetic isolation block falls into the slot, and at the same time, the newly placed magnetic steel block is inserted between two adjacent magnetic steel blocks.

[0018] S3. Repeat S2 until all the magnetic isolation blocks fall into the slots and the magnetic steel blocks form a magnetic steel ring.

[0019] S4. Remove the gland, lift the outer positioning ring and the magnetic steel ring together and coaxially sleeve them onto an installation base. Coat an adhesive on the inner wall surface of the outer magnetic pole. Then align the installation cylinder with the outer magnetic pole and sleeve it into the outer positioning ring from top to bottom and press down the magnetic steel ring, so that the magnetic steel ring moves out of the outer positioning ring and is pressed into the outer magnetic pole. Sleeve the outer magnetic pole onto the outside of the magnetic steel ring along the installation cylinder. After the assembly is completed, take out the outer magnetic pole, and place the assembled magnetic steel ring in a safe place for standby.

[0020] The present invention has achieved the following technical effects compared with the prior art:

[0021] The present invention solves the interference of the mutual repulsive force of the magnetic steel parts on the assembly, ensures the efficiency and safety of the assembly process, provides a reliable installation method according to the stator assembly method, makes the permanent magnet part assembly operation of the magnetic circuit stator assembly simple and does not damage the parts during the process, and the parts will not fly out and injure the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the installation device for the stator assembly of the two-stage motor magnetic circuit in the embodiment of the present invention;

[0024] Figure 2 For the embodiment of the present invention Figure 1 Schematic cross-sectional structure diagram of A-A in the figure;

[0025] Figure 3 Internal schematic of the stator assembly of the double-segment motor magnetic circuit in the embodiment of the present invention Figure 1 ;

[0026] Figure 4 Internal schematic of the stator assembly of the double-segment motor magnetic circuit in the embodiment of the present invention Figure 2 ;

[0027] Figure 5 Schematic structure diagram of the base in the embodiment of the present invention;

[0028] Figure 6 Schematic structure diagram of the movable support block in the embodiment of the present invention;

[0029] Figure 7 Schematic structure diagram of the gland in the embodiment of the present invention;

[0030] Figure 8 Schematic structure diagram of the outer positioning ring in the embodiment of the present invention;

[0031] Figure 9 Schematic diagram of the installation process of the stator assembly of the double-segment motor magnetic circuit in the embodiment of the present invention;

[0032] In the figure: 1 - bottom plate, 2 - card slot seat, 3 - movable support block, 4 - inner positioning ring, 5 - gland, 6 - magnetic isolation block, 7 - magnetic steel block, 8 - outer positioning ring, 9 - slot, 10 - cushion block, 11 - limit pin, 12 - kidney-shaped hole, 13 - material discharge groove, 14 - stop block, 15 - bolt, 16 - insertion hole, 17 - observation port, 18 - installation base, 19 - installation cylinder, 20 - outer magnetic pole. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] The purpose of the present invention is to provide an installation device and method for a stator assembly of a double-segment motor magnetic circuit to solve the problems existing in the prior art, so that the permanent magnet parts of the stator assembly of the magnetic circuit can be assembled simply and the parts will not be damaged during the process, and the parts will not fly out and injure the operator.

[0035] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Embodiment 1

[0037] As Figures 1 to 8 shown, in this embodiment, a stator assembly installation device for a two-section motor magnetic circuit is provided, which includes a base, an inner positioning ring 4, an outer positioning ring 8, a gland 5, a magnetic isolation block 6, and a movable support block 3. The inner positioning ring 4 is coaxially connected to the base. The gland 5 is coaxially and movably connected to the inner positioning ring 4. The outer positioning ring 8 is coaxially sleeved outside the gland 5. A ring cavity is formed between the inner positioning ring 4 and the outer positioning ring 8 for accommodating the magnetic steel block 7 and the magnetic isolation block 6. The magnetic steel block 7 and the magnetic isolation block 6 have exactly the same shape and size. A plurality of slots 9 and pads 10 are equidistantly arranged on the base, and the slots 9 and the pads 10 are arranged at intervals. The movable support block 3 is movably arranged in the slot 9. The magnetic isolation block 6 is arranged above the movable support block 3 and can fall and be inserted into the slot 9. The distance between the gland 5 and the pad 10 is at least the thickness of one magnetic steel block 7. The outer diameters of the pad 10 and the gland 5 are both larger than the outer diameter of the inner positioning ring 4. A feeding groove 13 is arranged on the gland 5, and the feeding groove 13 can accommodate one magnetic steel block 7 and is communicated with the ring cavity.

[0038] As an alternative solution, in this embodiment, the base includes a slot base 2 and a bottom plate 1. The bottom plate 1 is connected to the slot base 2 by bolts 15. A plurality of slots 9 are evenly distributed circumferentially along the outer edge of the slot base 2. In this embodiment, U-shaped slots are preferably used. The spacer between adjacent slots 9 is the pad 10. The shape and size of the slot 9 match the shape and size of the magnetic isolation block 6, so that the magnetic isolation block 6 can fall into the slot 9. The thickness of the magnetic isolation block 6 is the same as the thickness of the slot base 2, which is convenient for keeping the upper surface flat, so that the magnetic steel block 7 can be supported after the magnetic isolation block 6 falls, making the bottom surface of the magnetic steel ring flat and ensuring the assembly accuracy.

[0039] As an alternative solution, in this embodiment, the size of the bottom plate 1 is larger than the size of the base, and the movable support block 3 is slidably arranged on the bottom plate 1; the size of the pad 10 on the base is larger than the inner diameter of the outer positioning ring 8.

[0040] As an alternative solution, in this embodiment, a limit pin 11 is arranged on the bottom plate 1, and the limit pin 11 is located at the opening end of the slot 9. A waist-shaped hole 12 is arranged in the middle of the movable support block 3, and the limit pin 11 is slidably arranged in the waist-shaped hole 12, so that the end of the movable support block 3 can be inserted into and separated from the slot 9, realizing the telescopic sliding of the movable support block 3. When the movable support block 3 extends, it supports the magnetic isolation block 6. When the movable support block 3 is pulled back, the magnetic isolation block 6 supports the magnetic steel block 7 after falling.

[0041] As an alternative, in this embodiment, the thicknesses of the movable support block 3 and the card slot base 2 are both the same as the thickness of the magnet block 7; one slot 9 is correspondingly provided with one magnetic isolation block 6. When replacing the magnet block 7 with the simulation block, the magnetic isolation block 6 is dropped down to create space for installing the magnet block 7.

[0042] As an alternative, in this embodiment, the inner positioning ring 4 is a cylinder, and plug-in slots are provided on both end faces of the cylinder. A threaded through-hole is provided between the two plug-in slots. The two plug-in slots are respectively used for plugging the base and the gland 5. The positioning is reliable and the assembly operation is simple. The gland 5 is also connected to the threaded through-hole of the inner positioning ring 4 through a bolt 15 to ensure the stability of the structure.

[0043] As an alternative, in this embodiment, two plug-in holes 16 are provided on the gland 5. The plug-in holes 16 are used for plugging the operation handle to facilitate the rotation and removal of the gland 5; a plurality of observation ports 17 are evenly distributed along the circumferential direction of the gland 5. The observation ports 17 are communicated with the annular cavity and are arranged opposite to the connection seams of the two magnet blocks 7; the thickness of the gland 5 is at least the thickness of one magnet block 7, which plays the role of a guiding channel to ensure the assembly accuracy.

[0044] As an alternative, in this embodiment, a material discharge groove 13 and a stop block 14 are provided on the outer edge of the gland 5. The shape and size of the material discharge groove 13 match the shape and size of the magnet block 7. A stop block 14 is connected to the edge of the material discharge groove 13 through a bolt 15 or a torsion spring. The stop block 14 can rotate and block above the material discharge groove 13. After the magnet block 7 is installed, the material discharge groove 13 is blocked by the stop block 14 to prevent the magnet block 7 from flying out due to magnetic force and injuring people.

[0045] As an alternative, in this embodiment, the base, the inner positioning ring 4, the outer positioning ring 8, the gland 5, the magnetic isolation block 6 and the movable support block 3 are all made of non-magnetic materials to avoid the magnetic force generated with the magnet block 7 affecting the assembly process. Because the magnetic isolation block 6 is non-magnetic, it can symmetrically separate half of the magnet block 7 during the installation process to avoid magnetic repulsion. When installing the remaining half of the magnet block 7, the magnetic isolation block 6 is moved out of the space through the movable support block 3 for individual replacement.

[0046] As an alternative, in this embodiment, the inner hole of the outer positioning ring 8 includes a cylindrical surface section and a conical surface section connected in sequence from bottom to top. The length of the cylindrical surface section is not less than the length of the magnet. The length of the conical surface section is 1.2 times - 1.5 times the length of the magnet. The conical surface section inclines outward by 2° - 5°. By adopting a variable diameter design to gradually tighten the gap with the magnet, it is avoided that the parts are damaged and the operator is injured by the flying magnet during the magnet assembly process.

[0047] Embodiment Two

[0048] Such as Figure 3 、 Figure 4 、 Figure 9As shown in the figure, in this embodiment, a method for installing a stator assembly of a dual-section motor magnetic circuit is provided. Based on the above-mentioned device for installing a stator assembly of a dual-section motor magnetic circuit, the specific steps are as follows:

[0049] S1. When assembling the device for installing a stator assembly of a dual-section motor magnetic circuit, first place several magnetic isolation blocks 6 in the annular cavity, and ensure that each magnetic isolation block 6 is located above the movable support block 3 (initially, the magnetic isolation blocks 6 are distributed at intervals). Then rotate the gland 5, and sequentially place a magnetic steel block 7 on each spacer block 10 (between two adjacent magnetic isolation blocks 6) from the feeding groove 13, so that the magnetic steel block 7 and the magnetic isolation block 6 form a closed loop; the magnetic steel block 7 is assembled between two magnetic isolation blocks 6, which reduces the difficulty of preliminary assembly and the influence of magnetic steel repulsion on the assembly.

[0050] S2. Rotate the gland 5 to make the feeding groove 13 correspond to any one of the magnetic isolation blocks 6, place a magnetic steel block 7, and pull out the movable support block 3, so that the magnetic isolation block 6 falls into the slot 9. At the same time, insert the newly placed magnetic steel block 7 between two adjacent magnetic steel blocks 7;

[0051] S3. Repeat S2 until all the magnetic isolation blocks 6 fall into the slots 9, and each magnetic steel block 7 forms a magnetic steel ring;

[0052] S4. Remove the gland 5, lift out the magnetic steel ring and the outer positioning ring 8 together, and coaxially sleeve the outer positioning ring 8 and the magnetic steel ring onto an installation base 18. Before sleeving, the operator coats an adhesive on the inner wall surface of the outer magnetic pole. Then align the installation cylinder 19 with the outer magnetic pole 20 and sleeve it into the outer positioning ring 8 from top to bottom, and press down the magnetic steel ring, so that the magnetic steel ring moves out of the outer positioning ring 8 and is pressed into the outer magnetic pole 20. Sleeve the outer magnetic pole 20 along the installation cylinder 19 outside the magnetic steel ring. After the assembly is completed, take out the outer magnetic pole 20, and place the assembled magnetic steel ring in a safe place for later use.

[0053] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A stator assembly mounting device for a two-section motor magnetic circuit, characterized in that: It includes a base, an inner positioning ring, an outer positioning ring, a gland, a magnetic isolation block and a movable support block. The inner positioning ring is coaxially connected to the base. The gland is coaxially and movably connected to the inner positioning ring. The outer positioning ring is coaxially sleeved outside the gland. An annular cavity is formed between the inner positioning ring and the outer positioning ring, and the annular cavity is used to accommodate a magnetic steel block and the magnetic isolation block. The shapes and sizes of the magnetic steel block and the magnetic isolation block are exactly the same. A plurality of slots and cushion blocks are equidistantly arranged on the base, and the slots and the cushion blocks are arranged at intervals. The movable support block is movably arranged in the slot. The magnetic isolation block is arranged above the movable support block and can fall and be inserted into the slot. The distance between the gland and the cushion block is at least the thickness of one magnetic steel block. The outer diameters of the cushion block and the gland are both larger than the outer diameter of the inner positioning ring. A material placing groove is arranged on the gland, and the material placing groove can accommodate one magnetic steel block and is communicated with the annular cavity. The base includes a slot seat and a bottom plate. The bottom plate is bolted to the slot seat. A plurality of U-shaped slots are evenly distributed along the circumferential direction of the outer edge of the slot seat. The spacer between adjacent slots is the cushion block. The shape and size of the slot match the shape and size of the magnetic isolation block, so that the magnetic isolation block can fall into the slot.

2. The stator assembly mounting device for a two-section motor magnetic circuit according to claim 1, wherein: The size of the bottom plate is larger than that of the base, and the movable support block is slidably arranged on the bottom plate. The size of the cushion block on the base is larger than the inner diameter of the outer positioning ring.

3. The stator assembly mounting device for a two-section motor magnetic circuit according to claim 2, characterized in that: A limit pin is arranged on the bottom plate, and the limit pin is located at the opening end of the slot. A waist-shaped hole is arranged in the middle of the movable support block, and the limit pin is slidably arranged in the waist-shaped hole, so that the end of the movable support block can be inserted into and separated from the slot.

4. The stator assembly mounting device of the double-section motor magnetic circuit according to claim 1, characterized in that: The thicknesses of the movable support block and the slot seat are both the same as the thickness of the magnetic steel block. One slot corresponds to one magnetic isolation block.

5. The stator assembly mounting device of the double-section motor magnetic circuit according to claim 1, characterized in that: The inner positioning ring is a cylinder. Plug-in grooves are arranged on both end faces of the cylinder. A threaded through hole is arranged between the two plug-in grooves. The two plug-in grooves are respectively used for plugging the base and the gland, and the gland is also bolted to the threaded through hole of the inner positioning ring.

6. The stator assembly mounting device for a double-segment motor magnetic circuit according to claim 1, characterized in that: Two plug-in holes are arranged on the gland, and the plug-in holes are used for plugging an operating handle. A plurality of observation ports are evenly distributed along the circumferential direction of the gland. The observation ports are communicated with the annular cavity and are arranged opposite to the connection seams of the two magnetic steel blocks. The thickness of the gland is at least the thickness of one magnetic steel block.

7. The stator assembly mounting device for a two-section motor magnetic circuit according to claim 1, characterized in that: A material placing groove and a stop block are arranged on the outer edge of the gland. The shape and size of the material placing groove match the shape and size of the magnetic steel block. The edge of the material placing groove is connected with the stop block by bolts or torsion springs, and the stop block can rotate and block above the material placing groove.

8. The stator assembly mounting device for a two-segment motor magnetic circuit according to claim 1, characterized in that: The base, the inner positioning ring, the outer positioning ring, the gland, the magnetic isolation block and the movable support block are all made of non-magnetic materials; the inner hole of the outer positioning ring includes a cylindrical surface section and a conical surface section connected in sequence from bottom to top. The length of the cylindrical surface section is not less than the length of the magnet, the length of the conical surface section is 1.2 to 1.5 times the length of the magnet, and the conical surface section inclines outward by 2°-5°.

9. A method for installing a stator assembly of a dual-segment motor magnetic circuit, based on the stator assembly installation device of the dual-segment motor magnetic circuit according to any one of claims 1-8, characterized in that, Specifically, the following steps are included: S1. When assembling the double-section motor magnetic circuit stator assembly device, first place a plurality of the magnetic isolation blocks in the annular cavity, and make each magnetic isolation block located above the movable support block. Then rotate the gland, and sequentially place a magnet block on each cushion block from the material feeding groove, so that the magnet block and the magnetic isolation block form a closed loop. S2. Rotate the gland to make the material feeding groove correspond to any one of the magnetic isolation blocks, place a magnet block, and draw out the movable support block, so that the magnetic isolation block falls into the slot, and at the same time make the newly placed magnet block inserted between two adjacent magnet blocks. S3. Repeat S2 until all the magnetic isolation blocks fall into the slots, and each magnet block forms a magnet ring. S4. Remove the gland, lift the outer positioning ring and the magnet ring together and coaxially sleeve them onto an installation base. Coat an adhesive on the inner wall surface of the outer magnetic pole. Then align the installation cylinder with the outer magnetic pole and sleeve it into the outer positioning ring from top to bottom and press down the magnet ring, so that the magnet ring moves out of the outer positioning ring and is pressed into the outer magnetic pole. Sleeve the outer magnetic pole along the installation cylinder outside the magnet ring. After the assembly is completed, take out the outer magnetic pole, and place the assembled magnet ring in a safe place for standby.

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