A fine-tuning floating device for horizontal assembly of large motors

Abstract

The present invention relates to the technical field of horizontal assembly of large motors, and specifically discloses a fine-tuning floating device for horizontal assembly of large motors, including a hoisting bow for a crane and a stator clamping assembly, wherein a rotor is hoisted on the hoisting bow, and a stator matching the rotor is arranged on the stator clamping assembly, and an alignment assembly is detachably installed at one end of the rotor, wherein the alignment assembly is composed of a bullet-shaped alignment member and a fixed ring, wherein the fixed ring is sleeved on the end of the rotor, and the fixed ring and the bullet-shaped alignment member are reinforced and connected by at least two external connecting rods; the maximum radius of the bullet-shaped alignment member is consistent with the inner ring radius of the stator, so as to facilitate the coaxial alignment of the stator and the rotor after the alignment assembly is sent into the stator. The present invention can greatly improve the efficiency of the alignment assembly of the rotor and the stator, reduce the slowdown of the assembly efficiency caused by the alignment deviation, and improve the assembly progress of the motor.

Description

Technical Field

[0001] The invention belongs to the technical field of horizontal assembly of large motors, and in particular relates to a fine-tuning floating device for horizontal assembly of large motors. Background Art

[0002] New energy vehicles refer to vehicles that use non-traditional fuels (such as gasoline or diesel) as a power source, or use new vehicle power systems. Types of new energy vehicles include electric vehicles (EV), plug-in hybrid vehicles (PHEV), extended-range electric vehicles (EREV) and fuel cell vehicles (FCEV), and the motor structure and key technologies of new energy vehicles are their core components. The current status of new energy vehicle technology development shows that key technologies such as vehicle technology, power battery technology, electric drive system technology, intelligent control technology and fuel cell technology are at the forefront of the world and have room for development. It is expected that by 2025, the sales volume of new energy vehicles will account for about 20%. The types of new energy vehicle products will be more abundant to meet the needs of different consumer groups. Pure electric vehicles will continue to dominate, and it is expected that the proportion will reach more than 55% by 2025 and 75% by 2030. The technical route of new energy vehicles will develop in the direction of high intelligence. Key core technologies such as batteries, drive motors, and electronic controls will continue to make breakthroughs to improve the performance, range and safety of new energy vehicles.

[0003] The core components of new energy vehicles are inseparable from motors, which are used to drive the wheels of new energy vehicles; the motor of new energy vehicles is one of the three core systems of electric vehicles, which directly determines the vehicle's power performance, economy and the user's driving experience. The following is some key information about new energy vehicle motors: Characteristics and classification of drive motors: The drive motor is the power core of new energy vehicles. It needs to drive the vehicle forward and generate electricity when braking or coasting, and has energy recovery function. Design requirements include wide speed regulation range, high density and lightweight, high efficiency, energy recovery, high reliability and safety, and continuous cost reduction. The drive motors commonly used in pure electric vehicles are DC motors, asynchronous motors, permanent magnet synchronous motors and switched reluctance motors.

[0004] The large motors of new energy vehicles need to be aligned with the stator and rotor before the assembly of the vehicle. Currently, the alignment is usually done by a crane crane, but alignment deviations often occur, and the rotor often needs to be adjusted multiple times, which seriously affects the assembly rate of the motor and has great shortcomings. Summary of the invention

[0005] The purpose of the present invention is to provide a large motor horizontal assembly fine-tuning floating device to solve the problem of frequent alignment deviations between stators and rotors in the prior art, which affects the assembly progress of the motor.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large motor horizontal assembly fine-tuning floating device, comprising a crane hoist and a stator clamping assembly, the crane hoist is provided with a rotor, the stator clamping assembly is provided with a stator matching the rotor, one end of the rotor is detachably provided with an alignment assembly, the alignment assembly is composed of a bullet-shaped alignment piece and a fixing ring, the fixing ring is sleeved on the end of the rotor, and the fixing ring and the bullet-shaped alignment piece are reinforced and connected by at least two external connecting rods; the maximum radius of the bullet-shaped alignment piece is consistent with the inner ring radius of the stator, so as to facilitate the coaxial alignment of the stator and the rotor after the alignment assembly is sent into the stator.

[0007] Preferably, the inner side wall of the fixing ring is provided with a plurality of keys in the circumferential direction, and the end of the rotor is provided with a plurality of key slots matching the keys on the fixing ring for quick clamping and fixing of the fixing ring and the rotor.

[0008] Preferably: the stator clamping assembly includes a U-shaped seat, and two vertical moving parts are symmetrically installed on the vertical section of the U-shaped seat, and the two vertical moving parts are connected to the clamping parts; the vertical moving parts include a telescopic cylinder, which is fixedly installed on the outer side wall of the U-shaped seat, and the output end of the telescopic cylinder is connected to a connecting plate, and a pair of supporting rods are fixedly connected to the side of the connecting plate away from the telescopic cylinder, and one end of the support rod away from the connecting plate passes through the U-shaped seat and is connected to the clamping part.

[0009] Preferably, two pairs of vertical limit grooves matching the two pairs of support rods are symmetrically formed on the side surface of the U-shaped seat, and the two pairs of support rods are respectively inserted and slidably connected in the two pairs of vertical limit grooves.

[0010] Preferably: the clamping member includes a bearing platform, a rectangular mounting groove is provided on the surface of the bearing platform, two clamping blocks are symmetrically arranged on the rectangular mounting groove, two groups of supporting side plates are symmetrically installed on both sides of the bearing platform for supporting the stator that has not been clamped, and a driving member matching the two clamping blocks is installed on the rectangular mounting groove.

[0011] Preferably: the driving component includes a dual-axis servo motor, which is fixed at the center position of the inner bottom of the rectangular mounting groove, and the two output ends of the dual-axis servo motor are respectively connected to two studs, and the two studs are threadedly sleeved with internal threaded sleeves on the outside, and the two internal threaded sleeves are respectively fixedly sleeved with fixing blocks on the outside, and the two fixing blocks are respectively fixedly mounted on the bottom surfaces of the two clamping blocks.

[0012] Preferably, the external threads on the two studs are arranged in opposite directions, and the two internally threaded sleeves are conveniently provided with internal threads matching the external threads on the two studs for cooperation.

[0013] Preferably, the opposite sides of the two abutting blocks are provided with anti-skid rubber pads, and the anti-skid rubber pads are bonded to the abutting blocks by epoxy resin adhesive.

[0014] Preferably, the bullet head alignment member is made of brass, is hollow inside, and has a thickness of 5-10 mm.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention utilizes the coordinated cooperation of the vertical moving member and the clamping member in the stator clamping assembly to clamp the stator in all directions, including up and down, left and right, front and back, to avoid the stator from being compressed and displaced during the insertion and delivery of the rotor using the crane bow, thereby ensuring the stability and reliability of the stator and rotor assembly process, and having strong practicality.

[0017] 2. The present invention adds an alignment component to the end of the rotor. The alignment component is composed of a fixing ring and a bullet-shaped alignment piece. In this way, an additional alignment mechanism can be added during the insertion of the rotor into the stator. The bullet-shaped alignment piece is abutted against the stator to achieve the purpose of rapid coaxial alignment and maintenance of the rotor and the stator. This can greatly improve the efficiency of the alignment and assembly of the rotor and the stator, reduce the slowdown of assembly efficiency caused by alignment deviation, and improve the assembly progress of the motor.

[0018] 3. In the present invention, the inner side wall of the fixing ring is circumferentially provided with several keys, and the end of the rotor is provided with several key slots matching the keys on the fixing ring, so as to provide for the quick clamping and fixing of the fixing ring and the rotor. This can improve the loading and unloading speed of the alignment component and ensure the strength of the installation structure after it is installed at the end of the rotor, so that it will not be easily distorted by pressure, and is durable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 is a side view of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the stator clamping assembly of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the clamping member of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the rotor and the alignment assembly of the present invention;

[0024] Figure 6 The figure is a disassembled diagram of the rotor and the alignment assembly of the present invention.

[0025] In the figure:

[0026] 1. Stator; 2. Rotor; 3. Lifting bow for crane; 4. Alignment assembly; 41. Bullet-shaped alignment piece; 42. Fixing ring; 43. External connecting rod; 5. Stator clamping assembly; 51. U-shaped seat; 511. Limiting vertical slot; 52. Vertical moving piece; 521. Telescopic cylinder; 522. Connecting plate; 523. Support rod; 53. Clamping piece; 531. Bearing platform; 5311. Rectangular mounting groove; 5312. Slot; 532. Tightening block; 533. Anti-slip rubber pad; 534. Insert block; 535. Support side plate; 536. Fixing block; 537. Dual-axis servo motor; 538. Stud; 539. Internal threaded sleeve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1-Figure 6 As shown, the present invention provides a large motor horizontal assembly fine-tuning floating device, including a crane hoist 3 and a stator clamping assembly 5, the crane hoist 3 is hoisted with a rotor 2, the stator clamping assembly 5 is provided with a stator 1 matching the rotor 2, one end of the rotor 2 is detachably mounted with an alignment assembly 4, the alignment assembly 4 is composed of a bullet-shaped alignment piece 41 and a fixing ring 42, the fixing ring 42 is sleeved on the end of the rotor 2, and the fixing ring 42 and the bullet-shaped alignment piece 41 are reinforced and connected by at least two outer connecting rods 43; the maximum radius of the bullet-shaped alignment piece 41 is consistent with the inner ring radius of the stator 1, so that the alignment assembly 4 is convenient for the coaxial alignment of the stator 1 and the rotor 2 after being sent into the stator 1; by adding an additional alignment mechanism during the insertion and delivery of the rotor 2 to the stator 1, the coaxial rapid alignment and maintenance of the rotor 2 and the stator 1 are achieved through the abutment of the bullet-shaped alignment piece 41 in the stator 1, which can greatly improve the efficiency of the alignment and assembly of the rotor 2 and the stator 1.

[0029] The inner wall of the fixing ring 42 is circumferentially provided with several keys (not shown in the figure), and the end of the rotor 2 is provided with several key slots (not shown in the figure) matching the keys on the fixing ring 42, so as to provide for the fast clamping and fixing of the fixing ring 42 and the rotor 2, thereby improving the loading and unloading speed of the alignment component 4 and ensuring the strength of the mounting structure after being installed at the end of the rotor 2, so that it will not be easily distorted by pressure; further, the bullet head alignment piece 41 is specifically made of brass, with a hollow interior and a thickness of 5-10mm. It is durable and lightweight, and can be conveniently added to the front end of the rotor 2.

[0030] In a further embodiment, referring to Figure 2and Figure 3 The stator clamping assembly 5 includes a U-shaped seat 51, and two vertical moving members 52 are symmetrically installed on the vertical section of the U-shaped seat 51, and the two vertical moving members 52 are connected to the clamping members 53; the vertical moving member 52 includes a telescopic cylinder 521, and the telescopic cylinder 521 is fixedly installed on the outer wall of the U-shaped seat 51. The output end of the telescopic cylinder 521 is connected to a connecting plate 522, and a pair of supporting rods 523 are fixedly connected to the side of the connecting plate 522 away from the telescopic cylinder 521. One end of the supporting rod 523 away from the connecting plate 522 passes through the U-shaped seat 51 and is connected to the clamping member 53. The output ends of the two telescopic cylinders 521 drive the two connecting plates 522 to move, which can drive the two pairs of supporting rods 523 to move away from or approach each other, thereby achieving the purpose of moving the two clamping members 53 away from or approaching each other;

[0031] Two pairs of limiting vertical grooves 511 matching the two pairs of support rods 523 are symmetrically opened on the side of the U-shaped seat 51. The two pairs of support rods 523 are respectively inserted and slidably connected in the two pairs of limiting vertical grooves 511. The limiting cooperation between the support rods 523 and the limiting vertical grooves 511 can improve the stability and reliability of the two clamping parts 53 when they are moving away from or approaching each other.

[0032] In this embodiment, the stator 1 can be clamped at the upper and lower sides to prevent the stator 1 from being compressed and displaced during the insertion and delivery of the rotor 2 using the crane hoist 3, thereby ensuring the stability and reliability of the stator 1 and rotor 2 during assembly.

[0033] In a further embodiment, referring to Figure 3 and Figure 4 The clamping member 53 includes a bearing platform 531, a rectangular mounting groove 5311 is opened on the surface of the bearing platform 531, and two tightening blocks 532 are symmetrically arranged on the rectangular mounting groove 5311. Two groups of supporting side plates 535 are symmetrically installed on both sides of the bearing platform 531 for supporting the stator 1 that has not been clamped. The two groups of supporting side plates 535 prevent the stator 1 from suffering pressure loss on the driving member and can support the curved side of the stator 1. A driving member matching the two tightening blocks 532 is installed on the rectangular mounting groove 5311.

[0034] In this embodiment, the stator 1 can be clamped on the left and right sides and the front and rear sides in multiple ways to prevent the stator 1 from being compressed and displaced during the insertion and delivery of the rotor 2 using the crane hoist 3, thereby ensuring the stability and reliability of the stator 1 and rotor 2 during assembly.

[0035] In a further embodiment, referring to Figure 4The driving part includes a dual-axis servo motor 537, which is fixed at the center position of the inner bottom of the rectangular mounting groove 5311. The two output ends of the dual-axis servo motor 537 are respectively connected to two studs 538, and the outer sides of the two studs 538 are both threadedly sleeved with internal threaded sleeves 539. The outer sides of the two internal threaded sleeves 539 are respectively fixedly sleeved with fixing blocks 536, and the two fixing blocks 536 are respectively fixedly mounted on the bottom surfaces of the two clamping blocks 532; the outer external threads of the two studs 538 are arranged in reverse, and the two internal threaded sleeves 539 are conveniently provided with internal threads matching the outer external threads of the two studs 538 for cooperation. The bottom surface of the clamping block 532 is symmetrically fixed with two plug-in blocks 534 about the fixing block 536, and the inner bottom of the rectangular mounting groove 5311 is symmetrically provided with slots 5312 matching the two plug-in blocks 534 for sliding insertion, which play a supporting and limiting function for the clamping block 532 during the translation process.

[0036] The two sides facing the two clamping blocks 532 are both provided with anti-skid rubber pads 533, and the anti-skid rubber pads 533 are bonded to the clamping blocks 532 by epoxy resin adhesive. The anti-skid rubber pads 533 can improve the ability of the clamping blocks 532 to prevent the stator 1 from shaking or shifting under pressure.

[0037] In this embodiment, the dual-axis servo motor 537 can be started to drive the two studs 538 outside it to rotate. The rotation of the two studs 538 can drive the two fixing blocks 536 to move away from or closer to each other, thereby achieving the purpose of clamping or releasing the two end surfaces of the stator 1. Specifically, it is achieved by switching the forward and reverse states of the two studs 538. This is a common technique and common knowledge among people in the field and will not be elaborated on.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large motor horizontal assembly fine-tuning floating device, comprising a crane bow (3) and a stator clamping assembly (5), characterized in that: The rotor (2) is suspended on the crane hoist (3), the stator clamping assembly (5) is provided with a stator (1) matching the rotor (2), one end of the rotor (2) is detachably provided with an alignment assembly (4), the alignment assembly (4) is composed of a bullet-shaped alignment piece (41) and a fixing ring (42), the fixing ring (42) is sleeved on the end of the rotor (2), and the fixing ring (42) and the bullet-shaped alignment piece (41) are reinforced and connected by at least two external connecting rods (43); the maximum radius of the bullet-shaped alignment piece (41) is consistent with the inner circle radius of the stator (1), so as to facilitate the coaxial alignment of the stator (1) and the rotor (2) after the alignment assembly (4) is sent into the stator (1).

2. According to claim 1, a large motor horizontal assembly fine-tuning floating device is characterized by: The inner side wall of the fixing ring (42) is provided with a plurality of keys in the circumferential direction, and the end of the rotor (2) is provided with a plurality of key slots matching the keys on the fixing ring (42) for quick clamping and fixing of the fixing ring (42) and the rotor (2).

3. According to claim 1, a large motor horizontal assembly fine-tuning floating device is characterized by: The stator clamping assembly (5) comprises a U-shaped seat (51), and two vertical moving members (52) are symmetrically installed on the vertical section of the U-shaped seat (51), and the two vertical moving members (52) are both connected to a clamping member (53); the vertical moving member (52) comprises a telescopic cylinder (521), and the telescopic cylinder (521) is fixedly installed on the outer wall of the U-shaped seat (51), and the output end of the telescopic cylinder (521) is connected to a connecting plate (522), and a pair of supporting rods (523) are fixedly connected to a side of the connecting plate (522) away from the telescopic cylinder (521), and one end of the supporting rod (523) away from the connecting plate (522) passes through the U-shaped seat (51) and is connected to the clamping member (53).

4. A large motor horizontal assembly fine-tuning floating device according to claim 3, characterized in that: The side surface of the U-shaped seat (51) is symmetrically provided with two pairs of limiting vertical grooves (511) matching the two pairs of supporting rods (523), and the two pairs of supporting rods (523) are respectively inserted and slidably connected in the two pairs of limiting vertical grooves (511).

5. According to claim 3, a large motor horizontal assembly fine-tuning floating device is characterized by: The clamping member (53) comprises a bearing platform (531), a rectangular mounting groove (5311) is provided on the surface of the bearing platform (531), two abutting blocks (532) are symmetrically arranged on the rectangular mounting groove (5311), two groups of supporting side plates (535) are symmetrically installed on both sides of the bearing platform (531) for supporting the stator (1) that has not been clamped, and a driving member matching the two abutting blocks (532) is installed on the rectangular mounting groove (5311).

6. A large motor horizontal assembly fine-tuning floating device according to claim 5, characterized in that: The driving member comprises a dual-axis servo motor (537), which is fixed at the center of the inner bottom of the rectangular mounting groove (5311), and two output ends of the dual-axis servo motor (537) are respectively connected to two studs (538), and the two studs (538) are both threadedly sleeved with internal threaded sleeves (539) on the outside, and the two internal threaded sleeves (539) are respectively fixedly sleeved with fixed blocks (536), and the two fixed blocks (536) are respectively fixedly mounted on the bottom surfaces of the two abutting blocks (532).

7. A large motor horizontal assembly fine-tuning floating device according to claim 6, characterized in that: The external threads on the two studs (538) are arranged in opposite directions, and the two internal threaded sleeves (539) are conveniently provided with internal threads matching the external threads on the two studs (538) for cooperation.

8. The large motor horizontal assembly fine-tuning floating device according to claim 5 is characterized by: The opposite sides of the two abutting blocks (532) are both provided with anti-skid rubber pads (533), and the anti-skid rubber pads (533) are bonded to the abutting blocks (532) by epoxy resin adhesive.

9. The large motor horizontal assembly fine-tuning floating device according to claim 1 is characterized by: The bullet head alignment member (41) is specifically made of brass, is hollow inside, and has a thickness of 5-10 mm.

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