Integrated dual-motor assembly structure device

Abstract

An integrated dual-motor assembly structure device comprises a front end cover, a casing, a stator, a rotor assembly I, a rotor assembly II, a controller box, a sensor rotor, a rear end cover, an inner shaft, a rear cover and an outer shaft. According to the utility model, double-shaft independent stable operation of the permanent magnet synchronous motor can be realized, and a single-shaft motor can realize forward and reverse rotation at any rotation speed and output in different rotation directions at the same time. The motor has the advantages that the two motor output assemblies are integrated in the same casing, output modes of different powers, different rotating speeds and different directions can be realized, the motor can realize double-shaft output, and the two output shafts do not interfere with each other. Compared with independent assembly of two motors, the motor structure is smaller, and the space can be utilized more reasonably.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely relates to integrated double motor assembly structure device. BACKGROUND

[0002] In the current permanent magnet synchronous motor, the motor is single shaft output, even if there is double shaft output form of motor, the double shaft of motor is single motor output and realizes double shaft output by mechanical conversion, cannot realize independent stable operation of double shaft, in certain specific environment, motor needs motor double shaft independent output and mutual interference, motor operation can independently change operating parameters.

[0003] Now the output form of motor is mostly single shaft unidirectional output, a small part is double shaft output, the double shaft output person form is single motor as power source, realizes single motor double shaft output form by adopting the way of mechanical structure conversion such as gearbox, the torque speed between the two rotating shafts of the motor double shaft output exists certain proportional relationship and cannot realize independent debugging operation. INNOVATION CONTENT

[0004] The utility model discloses a integrated double motor assembly structure device, including: front end cover, casing, stator, rotor assembly I, rotor assembly II, controller box, sensor rotor, rear end cover, inner shaft, rear cover, outer shaft.

[0005] The front end cover and the rear end cover are assembled at the two ends of the casing respectively.

[0006] The cover surface center of the front end cover and the rear end cover is equipped with through -hole.

[0007] The inner wall of the casing is cylindrical structure.

[0008] The stator, rotor assembly I and rotor assembly II are loaded in the inside of the casing.

[0009] The stator includes stator winding core I, stator winding core II.

[0010] The stator winding core I and the stator winding core II are pressed into the casing from both ends respectively, and are all in interference fit with the inner wall of the casing.

[0011] The rotor assembly I includes rotor support I, permanent magnet rotor I.

[0012] The bottom of the rotor support I is connected on the inner shaft through the key I.

[0013] The permanent magnet rotor I is sleeved into the rotor support I.

[0014] The stator winding core I is located between the inner wall of the casing and the permanent magnet rotor I.

[0015] The rotor assembly II comprises a rotor support II and a permanent magnet rotor II.

[0016] The bottom of the rotor support II is connected to the outer shaft by a key II.

[0017] The permanent magnet rotor II is sleeved into the rotor support II.

[0018] The stator winding core II is located between the inner wall of the casing and the permanent magnet rotor II.

[0019] The controller box is installed on the side of the rear end cover away from the casing, and the other side of the controller box is installed with the rear cover.

[0020] The inner shaft passes through the front end cover, the casing, and the rear end cover in sequence, and abuts against the controller box.

[0021] The two sides of the connection between the inner shaft and the key I are respectively provided with a bearing IV and a bearing V.

[0022] The outer shaft is sleeved on the outer diameter of the inner shaft, and the bearing III is arranged between the outer shaft and the inner shaft.

[0023] The length of the outer shaft is less than the length of the inner shaft, and the outer shaft is installed in the through hole of the front end cover.

[0024] The two sides of the connection between the outer shaft and the key II are respectively provided with a bearing I and a bearing II.

[0025] The sensor rotor comprises a position sensor I, a locking device I, a position sensor II, and a locking device II.

[0026] The position sensor I is installed in the through hole of the rear end cover through the locking device I, and the locking device I abuts against the inner shaft.

[0027] The position sensor II is installed in the through hole of the front end cover through the locking device II, and the locking device II abuts against the outer shaft.

[0028] Further, the shape of the casing is determined according to actual conditions.

[0029] Further, the inner wall of the casing is provided with a threading groove.

[0030] Further, the bearing II and the key II are provided with a compression ring II.

[0031] Further, the key I and the bearing V are provided with a compression ring I.

[0032] Further, the bearing I and the outer shaft are provided with a shaft sleeve.

[0033] Further, the permanent magnet rotor I and the permanent magnet rotor II each comprise a rotor core, a magnetic steel, a sleeve, and a locking device.

[0034] The magnetic steel is confined on the rotor core by auxiliary materials.

[0035] The outer wall of the magnetic steel is sleeved with a sleeve.

[0036] The locking device fixes the permanent magnet rotor on the rotor support.

[0037] Further, the locking device comprises a check ring and a screw.

[0038] Further, the bearing II is provided with a clamping ring away from one side of the key II.

[0039] The technical effect of the utility model is self-evident, the utility model can realize double-shaft independent stable operation of a permanent magnet synchronous motor, and single-shaft motor can realize simultaneous arbitrary speed forward and reverse rotation, and simultaneously realize different rotating direction output.

[0040] Compared with the prior art, the structure is clearer and simpler, the assembly process and machining difficulty are lower, and the overall cost of the utility model is lower, engineering can be better realized, and the overall performance of the motor is improved to a certain extent.

[0041] The utility model discloses a two motor output assemblies integrated in the same casing, can realize different power, different speed and different direction output form, and the motor can realize double-shaft output and mutual interference between two output shafts. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a schematic view of integrated double motor assembly structure device;

[0043] In the drawing: front end cover 1, casing 2, stator 3, stator winding core I 301, stator winding core II 302, rotor assembly I 4, rotor support I 401, permanent magnet rotor I 402, rotor assembly II 5, rotor support II 501, permanent magnet rotor II 502, controller box 6, sensor rotor 7, position sensor I 701, locking device I 702, position sensor II 703, locking device II 704, rear end cover 8, inner shaft 9, rear cover 10, outer shaft 11, bearing I 12, shaft sleeve 13, bearing II 14, bearing III 15, bearing IV 16, bearing V 17, pressing ring I 18, clamping ring 19, pressing ring II 20, key I 21, key II 22. DETAILED DESCRIPTION

[0044] The utility model will be further described below in conjunction with examples, but should not be understood as the above-mentioned subject range of the utility model is limited to the following examples. Without departing from the above-mentioned technical thought of the utility model, according to the ordinary technical knowledge and usual means in the art, various substitutions and changes are made, which should be included in the protection scope of the utility model.

[0045] Example 1:

[0046] Referring to Figure 1 An integrated double-motor assembly structure device, comprising: a front end cover 1, a casing 2, a stator 3, a rotor assembly I 4, a rotor assembly II 5, a controller box 6, a sensor rotor 7, a rear end cover 8, an inner shaft 9, a rear cover 10, an outer shaft 11.

[0047] The front end cover 1 and the rear end cover 8 are respectively assembled at both ends of the casing 2.

[0048] The front end cover 1 and the rear end cover 8 are respectively assembled at both ends of the casing 2.

[0049] The inner wall of the casing 2 is a cylindrical structure.

[0050] The stator 3, the rotor assembly I 4 and the rotor assembly II 5 are all loaded inside the casing 2.

[0051] The stator 3 comprises a stator winding core I 301 and a stator winding core II 302.

[0052] The stator winding core I 301 and the stator winding core II 302 are respectively pressed into the casing 2 from both ends and are in interference fit with the inner wall of the casing 2.

[0053] The rotor assembly I 4 comprises a rotor support I 401 and a permanent magnet rotor I 402.

[0054] The bottom of the rotor support I 401 is connected to the inner shaft 9 through a key I 21.

[0055] The permanent magnet rotor I 402 is sleeved into the rotor support I 401.

[0056] The stator winding core I 301 is located between the inner wall of the casing 2 and the permanent magnet rotor I 402.

[0057] The rotor assembly II 5 comprises a rotor support II 501 and a permanent magnet rotor II 502.

[0058] The bottom of the rotor support II 501 is connected to the outer shaft 11 through a key II 22.

[0059] The permanent magnet rotor II 502 is sleeved into the rotor support II 501.

[0060] The stator winding core II 302 is located between the inner wall of the casing 2 and the permanent magnet rotor II 502.

[0061] The controller box 6 is installed on the side of the rear end cover 8 away from the casing 2, and the other side of the controller box 6 is installed with the rear cover 10.

[0062] The inner shaft 9 passes through the front end cover 1, the casing 2, and the rear end cover 8 in sequence, and abuts against the controller box 6.

[0063] The inner shaft 9 is provided with bearings IV 16 and V 17 on both sides of the connection with the key I 21.

[0064] The outer shaft 11 is sleeved on the outer diameter of the inner shaft 9, and the bearings III 15 are arranged between the outer shaft 11 and the inner shaft 9.

[0065] The length of the outer shaft 11 is less than the length of the inner shaft 9, and the outer shaft 11 is installed in the through hole of the front end cover 1.

[0066] The outer shaft 11 is provided with bearings I 12 and II 14 on both sides of the connection with the key II 22.

[0067] The sensor rotor 7 comprises a position sensor I 701, a locking device I 702, a position sensor II 703, and a locking device II 704.

[0068] The position sensor I 701 is installed in the through hole of the rear end cover 8 through the locking device I 702, and the locking device I 702 abuts against the inner shaft 9.

[0069] The position sensor II 703 is installed in the through hole of the front end cover 1 through the locking device II 704, and the locking device II 704 abuts against the outer shaft 11.

[0070] Embodiment 2:

[0071] The integrated double-motor assembly structure device mainly comprises the technical content of any one of embodiments 1 to 3, and further comprises a through slot in the inner wall of the casing 2.

[0072] Embodiment 3:

[0073] The integrated double-motor assembly structure device mainly comprises the technical content of any one of embodiments 1 to 2, and further comprises a through slot in the inner wall of the casing 2.

[0074] Embodiment 4:

[0075] The integrated double-motor assembly structure device mainly comprises the technical content of any one of embodiments 1 to 3, and further comprises a pressing ring II 20 between the bearing II 14 and the key II 22.

[0076] Embodiment 5:

[0077] An integrated dual-motor assembly structure device, the main technical content is seen in any one of embodiments 1 to 4, further, the key I21 and bearing V17 are provided with a pressure ring I18 between them.

[0078] Embodiment 6:

[0079] An integrated dual-motor assembly structure device, the main technical content is seen in any one of embodiments 1 to 5, further, the bearing I12 and outer shaft 11 are provided with a shaft sleeve 13 between them.

[0080] Embodiment 7:

[0081] An integrated dual-motor assembly structure device, the main technical content is seen in any one of embodiments 1 to 6, further, the permanent magnet rotor I402 and the permanent magnet rotor II502 each include a rotor core, a magnetic steel, a sleeve, and a locking device.

[0082] The magnetic steel is imprisoned on the rotor core by an auxiliary material.

[0083] The sleeve is sleeved on the outer wall of the magnetic steel.

[0084] The locking device fixes the permanent magnet rotor on the rotor support.

[0085] Embodiment 8:

[0086] An integrated dual-motor assembly structure device, the main technical content is seen in any one of embodiments 1 to 7, further, the locking device includes a check ring and a screw.

[0087] Embodiment 9:

[0088] An integrated dual-motor assembly structure device, the main technical content is seen in any one of embodiments 1 to 8, further, the bearing II14 is provided with a clasp 19 away from the side of the key II22.

[0089] Embodiment 10:

[0090] See Figure 1 An integrated dual-motor assembly structure device, comprising: a front end cover 1, a shell 2, a stator 3, a rotor assembly I4, a rotor assembly II5, a controller box 6, a sensor rotor 7, a rear end cover 8, an inner shaft 9, a rear cover 10, an outer shaft 11.

[0091] The front end cover 1 and the rear end cover 8 are respectively assembled at both ends of the shell 2.

[0092] The cover surface of the front end cover 1 and the rear end cover 8 is provided with a through hole at the center.

[0093] The inner wall of the shell 2 is a cylindrical structure.

[0094] The stator 3, the rotor assembly I 4 and the rotor assembly II 5 are loaded in the interior of the casing 2.

[0095] The stator 3 comprises a stator winding core I 301 and a stator winding core II 302.

[0096] The stator winding core I 301 and the stator winding core II 302 are pressed into the casing 2 from both ends respectively, while the relative positions of the stator winding core and the casing are ensured, and the stator winding core I 301 and the stator winding core II 302 are in interference fit with the inner wall of the casing 2.

[0097] The rotor assembly I 4 comprises a rotor support I 401 and a permanent magnet rotor I 402.

[0098] The bottom of the rotor support I 401 is connected to the inner shaft 9 through the key I 21.

[0099] The permanent magnet rotor I 402 is sleeved into the rotor support I 401.

[0100] The stator winding core I 301 is located between the inner wall of the casing 2 and the permanent magnet rotor I 402.

[0101] The rotor assembly II 5 comprises a rotor support II 501 and a permanent magnet rotor II 502.

[0102] The bottom of the rotor support II 501 is connected to the outer shaft 11 through the key II 22.

[0103] The permanent magnet rotor II 502 is sleeved into the rotor support II 501.

[0104] The stator winding core II 302 is located between the inner wall of the casing 2 and the permanent magnet rotor II 502.

[0105] The controller box 6 is installed on the side of the rear end cover 8 away from the casing 2, and the other side of the controller box 6 is installed with the rear cover 10.

[0106] The inner shaft 9 passes through the front end cover 1, the casing 2 and the rear end cover 8 in sequence and abuts against the controller box 6.

[0107] The inner shaft 9 is provided with a bearing IV 16 and a bearing V 17 on both sides of the connection position of the key I 21.

[0108] The outer shaft 11 is sleeved on the outer diameter of the inner shaft 9, and the bearing III 15 is arranged between the outer shaft 11 and the inner shaft 9.

[0109] The length of the outer shaft 11 is less than the length of the inner shaft 9, and the outer shaft 11 is installed in the through hole of the front end cover 1.

[0110] The outer shaft 11 is provided with a bearing I 12 and a bearing II 14 on both sides of the connection position of the key II 22.

[0111] The sensor rotor 7 comprises a position sensor I 701, a locking device I 702, a position sensor II 703, and a locking device II 704.

[0112] The position sensor I 701 is installed in the through hole of the rear end cover 8 through the locking device I 702, and the locking device I 702 abuts against the inner shaft 9.

[0113] The position sensor II 703 is installed in the through hole of the front end cover 1 through the locking device II 704, and the locking device II 704 abuts against the outer shaft 11.

[0114] Embodiment 11:

[0115] An integrated dual-motor assembly structure device, the main technical content of which is seen in any one of embodiments 10 to 11, further, the shape of the casing 2 is determined according to actual conditions.

[0116] The shape of the casing is designed according to the use condition, which can be a cylindrical shape, or a square shape, etc., as long as the wall thickness of the casing is ensured.

[0117] Embodiment 12:

[0118] An integrated dual-motor assembly structure device, the main technical content of which is seen in any one of embodiments 10 to 11, further, the inner wall of the casing 2 is provided with a threading groove, which facilitates the threading of the three-phase wire of one stator and the wire of the sensor through the inside of the stator.

[0119] Embodiment 13:

[0120] An integrated dual-motor assembly structure device, the main technical content of which is seen in any one of embodiments 10 to 12, further, a pressing ring II 20 is arranged between the bearing II 14 and the key II 22.

[0121] Embodiment 14:

[0122] An integrated dual-motor assembly structure device, the main technical content of which is seen in any one of embodiments 10 to 13, further, a pressing ring I 18 is arranged between the key I 21 and the bearing V 17.

[0123] Embodiment 15:

[0124] An integrated dual-motor assembly structure device, the main technical content of which is seen in any one of embodiments 10 to 14, further, a shaft sleeve 13 is arranged between the bearing I 12 and the outer shaft 11.

[0125] Embodiment 16:

[0126] An integrated dual-motor assembly structure device, the main technical contents of which are described in any one of embodiments 10 to 15, further wherein the permanent magnet rotor I402 and the permanent magnet rotor II502 both include a rotor core, a magnet, a sleeve, and a locking device.

[0127] The magnets are secured to the rotor core by auxiliary materials.

[0128] The magnets are not limited to being confined to the rotor core in a certain way. They can be fixed by a purely mechanical structure, by high and low temperature adhesives, or by winding, etc.

[0129] A sleeve is fitted over the outer wall of the magnet.

[0130] The locking device fixes the permanent magnet rotor to the rotor support.

[0131] Example 17:

[0132] An integrated dual-motor assembly structure device, the main technical contents of which are described in any one of embodiments 10 to 16, further wherein the locking device includes a retaining ring and a screw.

[0133] The retaining ring is Figure 1 On the right side of the rotor bracket shown, screws are used to install the permanent magnet rotor in the middle of the rotor bracket; the function of the retaining ring is to fix the magnet to the rotor bracket, so that the motor has strong axial impact resistance and can meet the requirements of most equipment environments at present.

[0134] Example 18:

[0135] An integrated dual-motor assembly structure device, the main technical contents of which are described in any one of embodiments 10 to 17, further wherein the bearing II14 is provided with a retaining ring 19 on the side away from the key II22.

[0136] Example 19:

[0137] See Figure 1 An integrated dual-motor assembly structure includes: a front cover, rotor assembly I, rotor assembly II, stator, rear cover, controller box, position sensor and rear cover.

[0138] The stator includes stator winding core I, stator winding core II, and housing. The inner wall of the housing is a cylindrical structure that is interference-fitted with the stator winding core. The outer shape of the housing can be cylindrical or square, depending on the application, as long as the wall thickness is guaranteed. The inner wall of the housing is provided with a wire through groove (hole) to facilitate the passage of the three-phase wires of one of the stators and the sensor wires through the stator.

[0139] The stator winding core I and the stator winding core II are pressed into the shell from two ends respectively, and the relative positions of the stator winding core and the shell are ensured, the front end cover and the rear end cover are arranged at two ends of the shell, the controller box is arranged on the rear end cover, and the rear cover is arranged on the controller box.

[0140] The rotor assembly I is composed of an inner shaft, a rotor support I, a permanent magnet rotor I, a check ring and other auxiliary components.

[0141] The permanent magnet rotor I is composed of a rotor core, a magnetic steel, a sleeve and a locking device. First, the magnetic steel is trapped on the rotor core through different auxiliary materials, and the sleeve is sleeved on the outer wall of the magnetic steel to ensure that the magnetic steel is uniformly stressed during high-speed operation of the rotor, and phenomena such as breakage and unstable fastening do not occur.

[0142] Then, the permanent magnet rotor I is sleeved on the rotor support I according to the relative position, and the permanent magnet rotor I is fixed by the locking device to ensure that the permanent magnet rotor I and the rotor support I do not axially move and circumferentially slide.

[0143] The assembled rotor support I is assembled on the inner shaft in a key connection mode to form the rotor assembly I.

[0144] The rotor assembly II is composed of an outer shaft, a rotor support II, a permanent magnet rotor II and other auxiliary components.

[0145] The permanent magnet rotor II is composed of a rotor core, a magnetic steel, a sleeve and a locking device. First, the magnetic steel is trapped on the rotor core through different auxiliary materials, and the sleeve is sleeved on the outer wall of the magnetic steel to ensure that the magnetic steel is uniformly stressed during high-speed operation of the rotor, and phenomena such as breakage and unstable fastening do not occur.

[0146] Then, the permanent magnet rotor II is sleeved on the rotor support II according to the relative position, and the permanent magnet rotor II is fixed by the locking device to ensure that the permanent magnet rotor II and the rotor support II do not axially move and circumferentially slide.

[0147] The assembled rotor support II is assembled on the outer shaft in a key connection mode to form the rotor assembly II.

Claims

1. An integrated dual-motor assembly structural device, characterized by, Include: Front cover (1), shell (2), stator (3), rotor assembly I (4), rotor assembly II (5), controller box (6), sensor rotor (7), rear end cover (8), inner shaft (9), rear cover (10), outer shaft (11); The front cover (1) and rear end cover (8) are respectively assembled at both ends of the shell (2); The cover surface center of the front cover (1) and the rear end cover (8) is provided with a through hole; The inner wall of the shell (2) is a cylindrical structure; The stator (3), rotor assembly I (4) and rotor assembly II (5) are loaded in the shell (2); The stator (3) includes stator winding core I (301) and stator winding core II (302); The stator winding core I (301) and the stator winding core II (302) are respectively pressed into the shell (2) from both ends, and are in interference fit with the inner wall of the shell (2); The rotor assembly I (4) includes rotor support I (401) and permanent magnet rotor I (402); The bottom of the rotor support I (401) is connected to the inner shaft (9) through the key I (21); The permanent magnet rotor I (402) is sleeved into the rotor support I (401); The stator winding core I (301) is located between the inner wall of the shell (2) and the permanent magnet rotor I (402); The rotor assembly II (5) includes rotor support II (501) and permanent magnet rotor II (502); The bottom of the rotor support II (501) is connected to the outer shaft (11) through the key II (22); The permanent magnet rotor II (502) is sleeved into the rotor support II (501); The stator winding core II (302) is located between the inner wall of the shell (2) and the permanent magnet rotor II (502); The controller box (6) is installed on the side of the rear end cover (8) away from the shell (2), and the other side of the controller box (6) is installed with the rear cover (10); The inner shaft (9) passes through the front cover (1), the shell (2) and the rear end cover (8) in sequence, and abuts against the controller box (6); The inner shaft (9) is provided with bearing IV (16) and bearing V (17) on both sides of the connection with the key I (21); The outer shaft (11) is sleeved on the outer diameter of the inner shaft (9), and the bearing III (15) is arranged between the outer shaft (11) and the inner shaft (9); The length of the outer shaft (11) is less than the length of the inner shaft (9), and the outer shaft (11) is installed in the through hole of the front cover (1); The outer shaft (11) is provided with bearing I (12) and bearing II (14) on both sides of the connection with the key II (22); The sensor rotor (7) includes position sensor I (701), locking device I (702), position sensor II (703) and locking device II (704); The position sensor I (701) is installed in the through hole of the rear end cover (8) through the locking device I (702), and the locking device I (702) abuts against the inner shaft (9); The position sensor II (703) is installed in the through hole of the front cover (1) through the locking device II (704), and the locking device II (704) abuts against the outer shaft (11).

2. An integrated dual-motor assembly structural arrangement as claimed in claim 1 wherein, The shape of the machine shell (2) is determined according to actual conditions.

3. An integrated dual-motor assembly structural arrangement as claimed in claim 1 wherein, The inner wall of the machine shell (2) is provided with a threading groove.

4. An integrated dual-motor assembly structural arrangement device according to claim 1, wherein, A pressing ring II (20) is arranged between the bearing II (14) and the key II (22).

5. An integrated dual-motor assembly structural device according to claim 1, wherein A pressing ring I (18) is arranged between the key I (21) and the bearing V (17).

6. An integrated dual-motor assembly structural apparatus device according to claim 1, wherein, A shaft sleeve (13) is arranged between the bearing I (12) and the outer shaft (11).

7. An integrated dual-motor assembly structural apparatus device according to claim 1, wherein, The permanent magnet rotor I (402) and the permanent magnet rotor II (502) each comprise a rotor core, a magnetic steel, a sleeve, and a locking device. The magnetic steel is confined on the rotor core by auxiliary materials. The outer wall of the magnetic steel is sleeved with the sleeve. The locking device fixes the permanent magnet rotor on the rotor support.

8. An integrated dual-motor assembly structural arrangement as claimed in claim 7 wherein, The locking device comprises a check ring and a screw.

9. The integrated dual-motor assembly structural apparatus of claim 1, wherein, The bearing II (14) is provided with a clamping ring (19) away from the key II (22).

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