A large-size dual-redundant reluctance multi-pole rotary transformer

Abstract

The present invention relates to the technical field of transformers, and specifically discloses a large-size dual-redundancy reluctance multi-pole rotary transformer, comprising a rotating assembly, a fixed assembly, a rotating shaft, a motor housing and a plurality of vibration reduction assemblies, wherein the rotating assembly is fixedly sleeved on the outside of the rotating shaft, the fixed assembly is rotatably sleeved on the outside of the rotating assembly, a plurality of vibration reduction assemblies are evenly fixedly connected to the outside of the fixed assembly, and the other ends of the plurality of vibration reduction assemblies are all fixedly connected to the inside of the motor housing; the rotating assembly comprises a connecting housing, a transformer rotor and an inner seal, an outer fixing groove is provided on the outside of the connecting housing, the transformer rotor and the inner seal are both fixedly sleeved on the outer fixing groove, and the transformer rotor is located on the right side of the inner seal. The present invention can solve the problem that the motor needs to add a rotary transformer as a backup, and also solves the problem that the coil will cause the two redundancy output performances to be different when the main winding and the backup winding are in the same slot, and can perform vibration reduction operation on the transformer.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to a large-size dual-redundancy reluctance multi-pole rotary transformer. Background Art

[0002] The reluctance rotary transformer is a high-precision position sensor based on the principle of electromagnetic induction. Its working principle mainly relies on the change of air gap and magnetic resistance to generate output signals. Specifically, the device consists of a stator core, an excitation winding and a rotor. The excitation winding is fixed in the stator slot, while the rotor is made of stacked toothed sheets without any windings, achieving contactless operation.

[0003] The existing technology still has the following areas for improvement: the existing dual-redundancy reluctance multi-pole rotary transformer solutions are: (1) two completely independent reluctance multi-pole rotary transformers are directly installed in the motor through the reserved position of the motor; (2) two reluctance multi-pole rotary transformers are installed in the same housing; (3) the main winding and backup winding of a reluctance multi-pole rotary transformer are put off the line in the same slot and then installed in the motor.

[0004] The above two installation methods, Scheme (I) and Scheme (II), require the motor to increase its length for installing two reluctance multi-pole rotary transformers, which increases the weight of the motor; Scheme (III) has the main winding and the backup winding in the same slot, which will lead to differences in the performance of the two redundant outputs. Summary of the invention

[0005] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a large-sized dual-redundancy reluctance multi-pole rotary transformer, which can not only solve the problem that the motor needs to add a rotary transformer as a backup, but also solve the problem that the coils in the same slot of the main winding and the backup winding will cause the two redundant output performances to be different, and can perform vibration reduction operations on the transformer.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A large-sized double-redundant reluctance multi-pole rotary transformer comprises a rotating component, a fixed component, a rotating shaft, a motor housing and a plurality of vibration-damping components, wherein the rotating component is fixedly sleeved on the outside of the rotating shaft, the fixed component is rotatably sleeved on the outside of the rotating component, a plurality of vibration-damping components are uniformly fixedly connected to the outside of the fixed component, and the other ends of the plurality of vibration-damping components are fixedly connected to the inside of the motor housing.

[0008] Furthermore, the rotating assembly includes a connecting shell, a transformer rotor and an inner seal. An external fixing groove is opened on the outside of the connecting shell. The transformer rotor and the inner seal are fixedly mounted on the external fixing groove. The transformer rotor is located on the right side of the inner seal. The right side of the transformer rotor is located on the side wall of the external fixing groove.

[0009] Furthermore, the fixed assembly includes a fixed shell, a stator core, a coil and an outer seal, an inner fixed groove is opened inside the fixed shell, the stator core and the outer seal are fixedly connected to the inner fixed groove, the coil is detachably connected to the left and right sides of the stator core, the stator core is located on the right side of the outer seal, and the right side of the stator core is located at the side wall of the inner fixed groove.

[0010] Furthermore, the stator core is sleeved on the outside of the transformer rotor, a plurality of connecting wires are fixedly arranged on the right side of the coil, a plurality of wire slots are opened on the outside of the right end of the fixed shell, and the plurality of connecting wires are all located in the corresponding wire slots, a plurality of winding slots are opened on the stator core, a plurality of main windings and a plurality of backup windings are respectively fixedly arranged on the plurality of winding slots, and the plurality of main windings and the plurality of backup windings are distributed at intervals.

[0011] Furthermore, the vibration damping assembly includes a longitudinal sleeve, a transverse sleeve, a driving block and a fixed block. A longitudinal fixer is fixedly provided on the outer side of the longitudinal sleeve, a transverse fixer is fixedly provided on the outer side of the transverse sleeve, the longitudinal sleeve and the transverse sleeve are connected via a connecting pipe, a floating piston is slidably provided inside the transverse sleeve, the driving block is slidably connected to the inside of the longitudinal sleeve, a driving rod is fixedly provided on the outer side of the driving block, and the fixed block is fixedly connected to the outer side of the driving rod.

[0012] Furthermore, a longitudinal mounting cover is fixedly provided on the outer side of the longitudinal fixer, a transverse mounting cover is fixedly provided on the outer side of the transverse fixer, the right side of the floating piston is filled with nitrogen, and the inside of the longitudinal sleeve and the left side of the floating piston are filled with damping oil.

[0013] Furthermore, the fixing bolt is fixedly connected to the motor housing, a dustproof component is fixedly arranged on the right side of the fixed housing, and the left end of the dustproof component is detachably connected to the right end of the transverse fixer.

[0014] Furthermore, the dustproof assembly includes a dustproof cover, multiple internal fixings and multiple external fixings. The left side of the dustproof cover is provided with an internal groove, and the outer side of the dustproof cover is provided with multiple placement grooves, and each of the placement grooves is fixedly connected to one of the internal fixings and one of the external fixings.

[0015] Furthermore, the multiple internal fixing members and the multiple external fixing members are all circular ring structures, the sides of the multiple internal fixing members are fixedly connected to the inside of the placement groove, the multiple internal fixing members are each provided with an internal taking groove at the lower left, the left sides of the multiple external fixing members are each fixedly connected to the inside of the placement groove, the lower right sides of the multiple external fixing members are each provided with an external taking groove, and each of the connecting lines is located inside one of the internal fixing members and one of the external fixing members.

[0016] Furthermore, the rotating shaft is located inside the connecting shell, and the rotating shaft and the connecting shell are fixedly connected by axial bolts.

[0017] The beneficial effects of the present invention are:

[0018] (1) By arranging the stator core, the main winding and the backup winding, the technical effect that can be achieved is that the stator core is sleeved on the outside of the transformer rotor, a plurality of connecting wires are fixedly arranged on the right side of the coil, a plurality of wire slots are opened on the outer side of the right end of the fixed shell, and the plurality of connecting wires are all located in the corresponding wire slots, a plurality of winding slots are opened on the stator core, a plurality of main windings and a plurality of backup windings are respectively fixedly arranged on the plurality of winding slots, and the plurality of main windings and the plurality of backup windings are all distributed at intervals;

[0019] The rotation of the rotating shaft drives the transformer rotor to rotate. The stator core and the main winding receive external excitation voltage, and the transformer rotor generates an induced electromotive force through electromagnetic coupling to detect the angular displacement and angular velocity of the motor. The stator core, the main winding and the backup winding can solve the problem of adding a resolver as a backup to the motor. At the same time, compared with the solution of two resolvers, the length is reduced by 1 / 2. At the same time, it also solves the problem that when the main winding and the backup winding are in the same slot, the coil will cause the two redundant output performances to be different.

[0020] (2) By setting the vibration reduction assembly, the technical effect that can be achieved is that a longitudinal retainer is fixedly provided on the outer side of the longitudinal sleeve, a transverse retainer is fixedly provided on the outer side of the transverse sleeve, the longitudinal sleeve and the transverse sleeve are connected through a connecting pipe, a floating piston is slidably provided inside the transverse sleeve, a driving block is slidably connected inside the longitudinal sleeve, a driving rod is fixedly provided on the outer side of the driving block, a fixing block is fixedly connected on the outer side of the driving rod, a longitudinal mounting cover is fixedly provided on the outer side of the longitudinal retainer, a transverse mounting cover is fixedly provided on the outer side of the transverse retainer, the right side of the floating piston is filled with nitrogen, and the inside of the longitudinal sleeve and the left side of the floating piston are filled with vibration reduction oil;

[0021] The fixed shell drives the longitudinal sleeve to move outward, and the distance between the longitudinal sleeve and the fixed block is shortened. The driving block is driven to move inward through the driving rod, pushing the vibration-damping oil to move to the transverse sleeve through the connecting pipe, driving the floating piston to move to the right, and the nitrogen is compressed to slow down the movement speed of the floating piston, so that the transformer can reduce vibration. The vibration reduction component can absorb the vibration energy of the transformer and reduce the amplitude and frequency of vibration to ensure the smooth operation of the transformer and increase the service life of the equipment. The use of liquid vibration reduction can reduce damage to the vibration reduction component.

[0022] (3) By setting up the dustproof component, the technical effect that can be achieved is that an internal groove is opened on the left side of the dustproof cover, and multiple placement grooves are opened on the outer side of the dustproof cover. An internal fixing part and an external fixing part are fixedly connected to each placement groove. The multiple internal fixing parts and the multiple external fixing parts are all circular ring structures. The sides of the multiple internal fixing parts are fixedly connected to the inside of the placement groove. The lower left of the multiple internal fixing parts are opened with an internal removal groove. The left sides of the multiple external fixing parts are fixedly connected to the inside of the placement groove. The lower right of the multiple external fixing parts are opened with an external removal groove. Each connecting line is located inside an internal fixing part and an external fixing part. The dustproof component is fixed in the left and right directions by the internal fixing parts and the external fixing parts, which effectively prevents dust, dirt and other pollutants from entering the interior of the transformer, thereby protecting its internal precision mechanical structure and electronic components, and ensuring the stability and reliability of the transformer in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0026] Figure 3 This is a schematic diagram of the structure of removing the motor housing and the rotating shaft in the present invention;

[0027] Figure 4 for Figure 3 A partial enlarged view of B in the middle;

[0028] Figure 5 It is a left side view of the stator core in the present invention;

[0029] Figure 6 for Figure 5 A partial enlarged view of middle C;

[0030] Figure 7 is a front cross-sectional view of the vibration reduction assembly of the present invention;

[0031] Figure 8 It is a front cross-sectional view of the dustproof component in the present invention;

[0032] Fig. 9 for Figure 8 A partial enlarged view of D in the middle;

[0033] Fig.10 A top sectional view of the dustproof component of the present invention;

[0034] Description of main component symbols:

[0035] In the figure: 1, dustproof assembly; 11, internal fixing member; 12, dustproof cover; 13, placement slot; 14, internal slot; 15, external fixing member;

[0036] 2. Rotating assembly; 21. Connecting housing; 22. Transformer rotor; 23. Internal seal;

[0037] 3. Motor housing;

[0038] 4. Vibration reduction assembly; 41. Fixing bolt; 42. Fixing block; 43. Horizontal fixer; 44. Floating piston; 45. Horizontal sleeve; 46. Connecting pipe; 47. Longitudinal fixer; 48. Driving block; 49. Longitudinal sleeve; 410. Driving rod; 411. Longitudinal mounting cover; 412. Horizontal mounting cover;

[0039] 5. Rotating shaft; 51. Axial bolt;

[0040] 6. Fixed assembly; 61. Coil; 62. Connecting wire; 63. Fixed housing; 64. External seal; 65. Stator core; 66. Main winding; 67. Backup winding. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] Reference Figures 1 to 10 , is a large-sized double-redundant reluctance multi-pole rotary transformer disclosed in the present invention, comprising a rotating component 2, a fixed component 6, a rotating shaft 5, a motor housing 3 and a plurality of vibration reduction components 4, the rotating component 2 is fixedly sleeved on the outside of the rotating shaft 5, the fixed component 6 is rotatably sleeved on the outside of the rotating component 2, the plurality of vibration reduction components 4 are uniformly fixedly connected to the outside of the fixed component 6, and the other ends of the plurality of vibration reduction components 4 are all fixedly connected to the inside of the motor housing 3.

[0045] The rotating assembly 2 includes a connecting shell 21, a transformer rotor 22 and an inner seal 23. An outer fixing groove is opened on the outside of the connecting shell 21. The transformer rotor 22 and the inner seal 23 are both fixedly mounted on the outer fixing groove. The transformer rotor 22 is located on the right side of the inner seal 23. The right side of the transformer rotor 22 is located on the side wall of the outer fixing groove.

[0046] The fixed assembly 6 includes a fixed shell 63, a stator core 65, a coil 61 and an outer seal 64. An inner fixed groove is opened inside the fixed shell 63. The stator core 65 and the outer seal 64 are fixedly connected to the inner fixed groove. The coil 61 is detachably connected to the left and right sides of the stator core 65. The stator core 65 is located on the right side of the outer seal 64, and the right side of the stator core 65 is located on the side wall of the inner fixed groove.

[0047] The stator core 65 is sleeved on the outside of the transformer rotor 22, and a plurality of connecting wires 62 are fixedly arranged on the right side of the coil 61. A plurality of wire slots are opened on the outside of the right end of the fixed shell 63, and the plurality of connecting wires 62 are all located in the corresponding wire slots. A plurality of winding slots are opened on the stator core 65, and a plurality of main windings 66 and a plurality of backup windings 67 are respectively fixedly arranged on the plurality of winding slots, and the plurality of main windings 66 and the plurality of backup windings 67 are distributed at intervals.

[0048] The stator core 65, the main winding 66 and the backup winding 67 can solve the problem that the motor needs to add a resolver as a backup, while reducing the length by 1 / 2 compared to the solution with two resolvers. It also solves the problem that when the main winding 66 and the backup winding 67 are in the same slot, the coil 61 will cause the two redundant output performances to be different.

[0049] The vibration reduction assembly 4 includes a longitudinal sleeve 49, a transverse sleeve 45, a driving block 48 and a fixed block 42. A longitudinal fixer 47 is fixedly provided on the outer side of the longitudinal sleeve 49, a transverse fixer 43 is fixedly provided on the outer side of the transverse sleeve 45, the longitudinal sleeve 49 and the transverse sleeve 45 are connected by a connecting pipe 46, a floating piston 44 is slidably provided inside the transverse sleeve 45, the driving block 48 is slidably connected inside the longitudinal sleeve 49, a driving rod 410 is fixedly provided on the outer side of the driving block 48, and the fixed block 42 is fixedly connected to the outer side of the driving rod 410.

[0050] A longitudinal mounting cover 411 is fixedly provided on the outer side of the longitudinal fixer 47, a transverse mounting cover 412 is fixedly provided on the outer side of the transverse fixer 43, the right side of the floating piston 44 is filled with nitrogen, and the inside of the longitudinal sleeve 49 and the left side of the floating piston 44 are filled with damping oil.

[0051] The fixing bolt 41 is fixedly connected to the motor housing 3 , and a dustproof component 1 is fixedly provided on the right side of the fixed housing 63 . The left end of the dustproof component 1 is detachably connected to the right end of the transverse fixer 43 .

[0052] The vibration reduction component 4 can absorb the vibration energy of the transformer and reduce the amplitude and frequency of the vibration to ensure the smooth operation of the transformer and increase the service life of the equipment. The use of liquid vibration reduction can reduce the damage to the vibration reduction component 4.

[0053] The dustproof assembly 1 includes a dustproof cover 12, multiple internal fixing parts 11 and multiple external fixing parts 15. An internal groove 14 is opened on the left side of the dustproof cover 12, and multiple placement grooves 13 are opened on the outer side of the dustproof cover 12. Each placement groove 13 is fixedly connected to an internal fixing part 11 and an external fixing part 15.

[0054] The multiple internal fixing members 11 and the multiple external fixing members 15 are all circular ring structures. The sides of the multiple internal fixing members 11 are fixedly connected to the inside of the placement groove 13. The multiple internal fixing members 11 are each provided with an internal taking groove at the lower left. The left sides of the multiple external fixing members 15 are each fixedly connected to the inside of the placement groove 13. The multiple external fixing members 15 are each provided with an external taking groove at the lower right. Each connecting line 62 is located inside an internal fixing member 11 and an external fixing member 15.

[0055] The dustproof component 1 is fixed in the left and right directions by the inner fixing part 11 and the outer fixing part 15, which effectively prevents dust, dirt and other pollutants from entering the interior of the transformer, thereby protecting its internal precision mechanical structure and electronic components, and ensuring the stability and reliability of the transformer in harsh environments.

[0056] The rotating shaft 5 is located inside the connecting housing 21 , and the rotating shaft 5 and the connecting housing 21 are fixedly connected by an axial bolt 51 .

[0057] The working principle and use process of the present invention are as follows: the rotating shaft 5 rotates to drive the transformer rotor 22 to rotate, the stator core 65 and the main winding 66 receive the external excitation voltage, and the transformer rotor 22 generates an induced electromotive force through electromagnetic coupling to detect the angular displacement and angular velocity of the motor;

[0058] The fixed shell 63 drives the longitudinal sleeve 49 to move outward, and the distance between the longitudinal sleeve 49 and the fixed block 42 is shortened. The driving block 48 is driven to move inward through the driving rod 410, and the vibration-damping oil is pushed to move toward the transverse sleeve 45 through the connecting pipe 46, driving the floating piston 44 to move to the right. The nitrogen is compressed to slow down the movement speed of the floating piston 44, thereby reducing the vibration of the transformer.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A large-size dual-redundancy reluctance multi-pole rotary transformer, characterized in that: The invention comprises a rotating assembly (2), a fixed assembly (6), a rotating shaft (5), a motor housing (3) and a plurality of vibration-damping assemblies (4), wherein the rotating assembly (2) is fixedly sleeved on the outside of the rotating shaft (5), the fixed assembly (6) is rotatably sleeved on the outside of the rotating assembly (2), the plurality of vibration-damping assemblies (4) are uniformly fixedly connected to the outside of the fixed assembly (6), and the other ends of the plurality of vibration-damping assemblies (4) are all fixedly connected to the inside of the motor housing (3); The vibration reduction assembly (4) comprises a longitudinal sleeve (49), a transverse sleeve (45), a driving block (48) and a fixing block (42); a longitudinal fixer (47) is fixedly arranged on the outer side of the longitudinal sleeve (49); a transverse fixer (43) is fixedly arranged on the outer side of the transverse sleeve (45); the longitudinal sleeve (49) and the transverse sleeve (45) are connected via a connecting pipe (46); a floating piston (44) is slidably arranged inside the transverse sleeve (45); the driving block (48) is slidably connected inside the longitudinal sleeve (49); a driving rod (410) is fixedly arranged on the outer side of the driving block (48); and the fixing block (42) is fixedly connected to the outer side of the driving rod (410); A longitudinal mounting cover (411) is fixedly provided on the outer side of the longitudinal fixer (47), a transverse mounting cover (412) is fixedly provided on the outer side of the transverse fixer (43), the right side of the floating piston (44) is filled with nitrogen, the interior of the longitudinal sleeve (49) and the left side of the floating piston (44) are filled with vibration damping oil, and a fixing bolt (41) is fixedly connected to the motor housing (3) and the fixing block (42).

2. A large-size dual-redundancy reluctance multi-pole rotary transformer according to claim 1, characterized in that: The rotating assembly (2) comprises a connecting shell (21), a transformer rotor (22) and an inner seal (23); an outer fixing groove is provided on the outside of the connecting shell (21); the transformer rotor (22) and the inner seal (23) are both fixedly sleeved on the outer fixing groove; the transformer rotor (22) is located on the right side of the inner seal (23); and the right side of the transformer rotor (22) is located on the side wall of the outer fixing groove.

3. A large-size dual-redundancy reluctance multi-pole rotary transformer according to claim 2, characterized in that: The fixing assembly (6) comprises a fixing shell (63), a stator core (65), a coil (61) and an outer seal (64); an inner fixing groove is provided inside the fixing shell (63); the stator core (65) and the outer seal (64) are both fixedly connected to the inner fixing groove; the coil (61) is detachably connected to the left and right sides of the stator core (65); the stator core (65) is located on the right side of the outer seal (64); and the right side of the stator core (65) is located on the side wall of the inner fixing groove.

4. The large-size dual-redundancy reluctance multi-pole rotary transformer according to claim 3, characterized in that: The stator core (65) is sleeved on the outside of the transformer rotor (22); a plurality of connecting wires (62) are fixedly arranged on the right side of the coil (61); a plurality of wire slots are opened on the outside of the right end of the fixed shell (63); the plurality of connecting wires (62) are all located in the corresponding wire slots; a plurality of winding slots are opened on the stator core (65); a plurality of main windings (66) and a plurality of backup windings (67) are respectively fixedly arranged on the plurality of winding slots; the plurality of main windings (66) and the plurality of backup windings (67) are all distributed at intervals.

5. The large-size dual-redundancy reluctance multi-pole rotary transformer according to claim 4, characterized in that: A dustproof component (1) is fixedly arranged on the right side of the fixed shell (63), and the left end of the dustproof component (1) is detachably connected to the right end of the transverse fixer (43).

6. The large-size dual-redundancy reluctance multi-pole rotary transformer according to claim 5, characterized in that: The dustproof component (1) comprises a dustproof cover (12), a plurality of internal fixing parts (11) and a plurality of external fixing parts (15); an internal groove (14) is provided on the left side of the dustproof cover (12); a plurality of placement grooves (13) are provided on the outer side of the dustproof cover (12); each placement groove (13) is fixedly connected to one of the internal fixing parts (11) and one of the external fixing parts (15).

7. The large-size dual-redundancy reluctance multi-pole rotary transformer according to claim 6, characterized in that: The plurality of internal fixing members (11) and the plurality of external fixing members (15) are all annular structures, the sides of the plurality of internal fixing members (11) are fixedly connected to the inside of the placement groove (13), the lower left of the plurality of internal fixing members (11) are provided with an internal taking groove, the left sides of the plurality of external fixing members (15) are fixedly connected to the inside of the placement groove (13), the lower right of the plurality of external fixing members (15) are provided with an external taking groove, and each of the connecting lines (62) is located inside one of the internal fixing members (11) and one of the external fixing members (15).

8. The large-size dual-redundancy reluctance multi-pole rotary transformer according to claim 2, characterized in that: The rotating shaft (5) is located inside the connecting housing (21), and the rotating shaft (5) and the connecting housing (21) are fixedly connected via an axial bolt (51).

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