Permanent magnet direct drive motor with locking mechanism for air cooling island
By designing mechanical structures such as lock disks, bearing caps and stopping sales in Empty Cold Island, the problem of hidden safety hazards caused by the lack of locking mechanisms for the lack of locking mechanisms, and realizing the safety locking and convenient maintenance of the motor. , Reduced costs and occupied area.
Patent Information
- Application Number
- CN202323370500.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-12
AI Technical Summary
The existing permanent magnet direct drive motors for air-cooled islands lack locking mechanisms, which leads to safety hazards during shutdown and maintenance. At the same time, the high cost and large footprint of hydraulic brakes are difficult to promote.
Design an empty -cooled island with an permanent magnetic direct -driving motor with a locking mechanism. By setting up a mechanical structure such as locking discs, bearing cover, and stopping sales in the motor case, the motor lock function is realized.
The design integrates the permanent magnetic straight -drive motor and the locking mechanism into one structure, saving the installation space, which is convenient for installation and disassembly; the mechanical structure of the locking mechanism is not affected by power, the operation is simple and the cost is low.
Smart Images
Figure CN222423423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of direct-drive motor locking, in particular to a permanent-magnet direct-drive motor for an air-cooled island with a locking mechanism. Background Art
[0002] Permanent magnet direct drive motors for air-cooled islands are mainly used in power plants, ports, mines, pharmaceuticals and other industries, and have the characteristics of energy saving and environmental protection. Compared with the traditional ordinary asynchronous motor + reducer solution, permanent magnet direct drive motors for air-cooled islands have the advantages of low long-term operating costs, long service life, short drive chain, high torque transmission efficiency, and low maintenance costs.
[0003] However, the permanent magnet direct-drive motors currently in use do not contain a locking mechanism or have hydraulic brakes arranged on the transmission system. Permanent magnet direct-drive motors without a locking mechanism pose a safety hazard when shut down for maintenance, while hydraulic brakes are very expensive and occupy a large area, making them difficult to promote on a large scale.
[0004] Based on the above situation, the utility model proposes a permanent magnet direct-drive motor for an air-cooled island with a locking mechanism. Utility Model Content
[0005] The utility model aims to provide a permanent magnet direct drive motor for an air-cooled island with a locking mechanism to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a permanent magnet direct-drive motor for an air-cooled island with a locking mechanism, comprising a motor housing, a permanent magnet is arranged inside the motor housing, a rotor shaft is passed through the middle of the motor housing, a front end cover and a rear end cover are arranged at the front and rear ends of the motor housing, a bearing cover is arranged in the middle of the rear end cover, a locking plate is arranged at the rear end of the rotor shaft, a through hole is arranged on the outer edge of the bearing cover, a locking hole is arranged on the outer edge of the locking plate, and a stop pin can be passed through the middle of the through hole and the locking hole.
[0007] Furthermore: a bearing cover fixing hole and a positioning hole are also provided on the outer edge of the bearing cover, and the bearing cover is installed on the rear end cover by passing a bolt through the bearing cover fixing hole, and a positioning pin is inserted into the positioning hole.
[0008] Preferably: the bearing cover is annular as a whole and is sleeved on the rear end of the rotor shaft, and a sealing groove is distributed on the side wall of the inner hole of the bearing cover, a sealing ring is arranged in the sealing groove, and a retaining ring is arranged on the inner ring of the bearing cover for dust prevention.
[0009] Preferably, fins are evenly distributed on the outside of the motor housing, and a junction box is provided on the right side of the motor housing.
[0010] Further: a locking plate fixing hole is provided in the middle of the locking plate, and the locking plate is fixed to the rear end of the rotor shaft by means of bolts passing through the locking plate fixing hole, and rotating blind holes are distributed on the outer wall of the locking plate.
[0011] Preferably, a shaft rod can be inserted into the rotating blind hole.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model design integrates the permanent magnet direct drive motor body and the locking mechanism into an integrated structure, which saves installation space and is easy to install and disassemble; the locking mechanism is a mechanical structure and is not affected by other factors such as on-site electricity; a plurality of evenly distributed locking holes are provided on the locking disk to ensure that the locking disk stops at any position and the stop pins can be inserted, which is easy to use; a rotating blind hole is also provided on the locking disk, and the rotor shaft can be rotated by inserting the shaft rod, which is simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is an enlarged schematic diagram of point A;
[0015] Figure 3 It is a schematic diagram of direction B;
[0016] Figure 4 It is a schematic diagram of the locking plate;
[0017] Figure 5 Schematic diagram of the bearing cover.
[0018] In the figure: 1, motor housing, 2, rotating shaft, 3, front cover, 4, terminal box, 5, rear cover, 6, bearing cover, 7, locking plate, 601, sealing groove, 602, retaining ring, 603, bearing cover, 604, through hole, 605, positioning hole, 701, rotating blind hole, 702, locking plate fixing hole, 703, locking hole. DETAILED DESCRIPTION
[0019] The present invention will be described below based on the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. However, it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.
[0020] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.
[0021] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".
[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: it includes a motor housing 1, the inner wall of the motor housing 1 is provided with a permanent magnet, a rotor shaft 2 is passed through the middle of the motor housing 1, a front end cover 3 and a rear end cover 5 are provided at the front and rear ends of the motor housing 1, a bearing cover 6 is provided in the middle of the rear end cover 5, a locking plate 7 is provided at the rear end of the rotor shaft 2, a through hole 604 is provided on the outer edge of the bearing cover 6, a locking hole 703 is provided on the outer edge of the locking plate 7, and a stop pin can be passed through the middle of the through hole 604 and the locking hole 703.
[0023] The outer edge of the bearing cover 6 is also provided with a bearing cover fixing hole 603 and a positioning hole 605 . The bearing cover 6 is mounted on the rear end cover 5 by passing a bolt through the bearing cover fixing hole 603 . A positioning pin is inserted into the positioning hole 605 .
[0024] The bearing cover 6 is annular in shape and is sleeved on the rear end of the rotor shaft 2. A sealing groove 601 is distributed on the side wall of the inner hole of the bearing cover 6. A sealing ring is arranged in the sealing groove 601. A retaining ring 602 is arranged on the inner ring of the bearing cover 6 for dust prevention. Figure 2 As shown, there is also a similar structure below the locking plate 7 to further prevent dust from entering.
[0025] Fins are evenly distributed on the outside of the motor housing 1 , and a junction box 4 is provided on the right side of the motor housing 1 .
[0026] A locking plate fixing hole 702 is provided in the middle of the locking plate 7 , and the locking plate 7 is fixed to the rear end of the rotor shaft 2 by means of bolts passing through the locking plate fixing hole 702 . Rotation blind holes 701 are distributed on the outer wall of the locking plate 7 .
[0027] A shaft rod can be inserted into the rotating blind hole 701 .
[0028] When using the utility model, when overhauling the motor, first insert the shaft into the rotating blind hole 701, and then manually rotate the rotor shaft 2 with a very small force. When one of the locking holes 703 is aligned with the through hole 604, insert the stop pin through the locking hole 703 and the through hole 604 in sequence. At least two stop pins need to be inserted to ensure locking. After the overhaul is completed, the stop pin is pulled out and the motor can work. The above operation is very simple and can be easily understood by technicians in this field through the accompanying drawings.
[0029] 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 permanent magnet direct drive motor for an air-cooled island with a locking mechanism, characterized in that: The invention comprises a motor housing (1), wherein the inner wall of the motor housing (1) is provided with a permanent magnet, a rotor shaft (2) is passed through the middle of the motor housing (1), a front end cover (3) and a rear end cover (5) are provided at the front and rear ends of the motor housing (1), a bearing cover (6) is provided in the middle of the rear end cover (5), a locking plate (7) is provided at the rear end of the rotor shaft (2), a through hole (604) is provided at the outer edge of the bearing cover (6), a locking hole (703) is provided at the outer edge of the locking plate (7), and a stop pin can be passed through the middle of the through hole (604) and the locking hole (703).
2. The permanent magnet direct drive motor with a locking mechanism for an air-cooled island according to claim 1, characterized in that: The outer edge of the bearing cover (6) is also provided with a bearing cover fixing hole (603) and a positioning hole (605), and the bearing cover (6) is mounted on the rear end cover (5) by means of bolts passing through the bearing cover fixing hole (603), and a positioning pin is inserted into the positioning hole (605).
3. The permanent magnet direct drive motor with a locking mechanism for an air-cooled island according to claim 2, characterized in that: The bearing cover (6) is in the shape of an annulus as a whole and is sleeved on the rear end of the rotor shaft (2). A sealing groove (601) is distributed on the side wall of the inner hole of the bearing cover (6), a sealing ring is arranged in the sealing groove (601), and a retaining ring (602) is arranged on the inner ring of the bearing cover (6) for dust prevention.
4. The permanent magnet direct drive motor with a locking mechanism for an air-cooled island according to claim 1, characterized in that: Fins are evenly distributed on the outside of the motor housing (1), and a junction box (4) is provided on the right side of the motor housing (1).
5. The permanent magnet direct drive motor with a locking mechanism for an air-cooled island according to claim 1, characterized in that: A locking plate fixing hole (702) is provided in the middle of the locking plate (7), and the locking plate (7) is fixed to the rear end of the rotor shaft (2) by means of bolts passing through the locking plate fixing hole (702). Rotation blind holes (701) are distributed on the outer wall of the locking plate (7).
6. The permanent magnet direct drive motor with a locking mechanism for an air-cooled island according to claim 5, characterized in that: A shaft rod can be inserted into the rotating blind hole (701).