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CN-224225919-U - Semi-direct-drive permanent magnet driving device and coal mine scraper conveyor

CN224225919UCN 224225919 UCN224225919 UCN 224225919UCN-224225919-U

Abstract

The application relates to a semi-direct-drive permanent magnet driving device and a coal mine scraper conveyor, and relates to the technical field of mining transmission equipment, wherein the semi-direct-drive permanent magnet driving device comprises a permanent magnet motor, and the permanent magnet motor comprises a rotating shaft; the speed reducing assembly is coaxially arranged with the permanent magnet motor, the speed reducing assembly is arranged on one side of the permanent magnet motor, the connecting cylinder is arranged on one side, far away from the speed reducing assembly, of the permanent magnet motor, the mounting seat is arranged on the connecting cylinder, one end of the mounting seat is hinged to the connecting cylinder, the other end of the mounting seat is provided with a telescopic piece connected with the connecting cylinder, the hydraulic chain tightener is arranged on the mounting seat, one end of the hydraulic chain tightener is in driving connection with the action gear, the action gear is positioned in the mounting seat, the mounting seat is communicated with the connecting cylinder, the idle wheel is arranged in a space formed by the connection of the mounting seat and the connecting cylinder, the action gear is in meshed connection with the idle wheel, the end part of the rotating shaft is sleeved with the large gear, and the large gear is positioned in the connecting cylinder. The chain tensioning device has the effects of reducing labor intensity and misoperation risk and improving chain tensioning accuracy.

Inventors

  • LI HUI
  • WANG XIN
  • HOU SHURONG
  • LI JIANLIN
  • WANG KAI
  • WANG LIUJIE
  • WANG LIRONG

Assignees

  • 山西华鑫图科电机驱动有限公司

Dates

Publication Date
20260512
Application Date
20250621

Claims (9)

  1. 1. A semi-direct-drive permanent magnet driving device is characterized by comprising A permanent magnet motor (1), the permanent magnet motor (1) comprising a rotating shaft (17); the speed reduction assembly (2) and the permanent magnet motor (1) are coaxially arranged, and the speed reduction assembly (2) is arranged on one side of the permanent magnet motor (1); The chain tightening assembly (3), the chain tightening assembly (3) comprises a connecting cylinder (31), a mounting seat (32), an idler wheel (33) and a hydraulic chain tightening device (35), the connecting cylinder (31) is mounted on one side, far away from the speed reduction assembly (2), of the permanent magnet motor (1), the mounting seat (32) is arranged on the connecting cylinder (31), one end of the mounting seat (32) is hinged on the connecting cylinder (31), the other end of the mounting seat is provided with a telescopic piece (34) connected with the connecting cylinder (31), the fixed end of the telescopic piece (34) is hinged on the connecting cylinder (31), the movable end of the telescopic piece (34) is rotatably arranged on one end, far away from the connecting cylinder (31), of the mounting seat (32), the hydraulic chain tightening device (35) is arranged on the mounting seat (32), one end of the hydraulic chain tightening device (35) is in a driving connection with an action gear (36), the action gear (36) is positioned in the mounting seat (32), the mounting seat (32) is in communication with the idler wheel (31) and is in communication with the connecting cylinder (33) to form a transmission space (33), the end part of the rotating shaft (17) is sleeved with a large gear (18), the large gear (18) is positioned in the connecting cylinder (31), the telescopic piece (34) is driven, and the mounting seat (32) is rotatably arranged on the connecting cylinder (31) so that the idler gear (33) is meshed with the large gear (18) to be connected or disconnected.
  2. 2. The semi-direct-drive permanent magnet driving device according to claim 1, wherein the connecting cylinder (31) comprises a cover cylinder (311) and a base plate (312), the base plate (312) is arranged on the cover cylinder (311), the base plate (312) is communicated with the cover cylinder (311), the mounting seat (32) is mounted on the base plate (312), the cover cylinder (311) is mounted on one side of the permanent magnet motor (1), the large gear (18) is positioned in the cover cylinder (311), and a protective cover (313) is mounted on one side, far away from the permanent magnet motor (1), of the cover cylinder (311).
  3. 3. The semi-direct-drive permanent magnet driving device according to claim 2, wherein a first communication window (3111) is formed in the cover cylinder (311), a second communication window (3121) is formed in the base plate (312), the inside of the mounting base (32) is hollow, a third communication window (326) is formed in one side, close to the base plate (312), of the mounting base (32), and the first communication window (3111), the second communication window (3121) and the third communication window (326) are sequentially communicated to enable the idler wheel (33) to be in meshed connection with or disconnected from the large gear (18).
  4. 4. The semi-direct-drive permanent magnet driving device according to claim 2, wherein a first hinge shaft (314), a first support (315) and a second support (316) are arranged at one end of the base plate (312), the first support (315) is installed on one side of the base plate (312), the second support (316) is installed on the other side of the base plate (312), one end of the first hinge shaft (314) is arranged on the first support (315), the other end of the first hinge shaft is arranged on the second support (316), and one end of the mounting seat (32) is sleeved on the first hinge shaft (314) to enable the mounting seat (32) to rotate by taking the first hinge shaft (314) as a rotating shaft.
  5. 5. The semi-direct-drive permanent magnet driving device according to claim 2, wherein a third support (321) is arranged at the other end of the base plate (312), a second hinge shaft (322) is arranged on the third support (321), a fixed end of the telescopic piece (34) is sleeved on the second hinge shaft (322), a fourth support (323) is arranged on the mounting seat (32), a third hinge shaft (324) is arranged on the fourth support (323), a collar (325) is connected to the movable end of the telescopic piece (34), and the collar (325) is sleeved on and rotated on the third hinge shaft (324).
  6. 6. The semi-direct-drive permanent magnet driving device according to claim 1, wherein a support plate (37) is arranged in the connecting cylinder (31), a proximity switch (371) is arranged on the support plate (37), and the meshing positions of the proximity switch (371) and the large gear (18) and the idle gear (33) are in the same horizontal direction.
  7. 7. The semi-direct-drive permanent magnet driving device according to claim 1, wherein the permanent magnet motor (1) further comprises a shell (11), a rotor (12) and a stator (13), the rotor (12) and the rotating shaft (17) are coaxially arranged, the rotor (12) is sleeved on the rotating shaft (17), the stator (13) and the rotating shaft (17) are coaxially arranged, and the stator (13) is sleeved on the rotor (12).
  8. 8. The semi-direct-drive permanent magnet driving device according to claim 7, wherein a cooling pipe (14) is arranged on a side disc of the shell (11) close to the stator (13), one end of the cooling pipe (14) is connected with an oil inlet pipe (15), and the other end of the cooling pipe is connected with an oil outlet pipe (16).
  9. 9. A coal mine scraper conveyor, characterized by comprising the semi-direct-drive permanent magnet driving device according to any one of claims 1-8.

Description

Semi-direct-drive permanent magnet driving device and coal mine scraper conveyor Technical Field The application relates to the technical field of mining transmission equipment, in particular to a semi-direct-drive permanent magnet driving device and a coal mine scraper conveyor. Background In the field of coal mining, the scraper conveyor is used as one of three-machine matched equipment of a fully-mechanized coal mining face, and is a key for realizing normal operation of coal mining production. The traditional coal mine scraper conveyor driving system adopts a combination mode of an asynchronous motor, a hydraulic coupler, a chain tightening assembly and a speed reducing assembly, and the driving system has the advantages of complex structure, low transmission efficiency, low power density of the motor, high maintenance cost and the like, and is gradually replaced by a semi-direct-drive permanent magnet motor with the advantages of compact structure, low rotating speed, high torque, stable starting, higher transmission efficiency, high power density of the motor, simplicity in maintenance and the like. However, the semi-direct-drive permanent magnet motor cannot be matched with an original chain tightening device matched with an asynchronous motor, and the chain tightening function of the scraper conveyor cannot be realized. The existing hydraulic chain tightening assembly matched with the semi-direct-drive permanent magnet motor mostly adopts a manual clutch mode, the clutch between the hydraulic chain tightening assembly and the permanent magnet motor is realized by manually pulling a clutch handle, the degree of mechanization is low, the operation is complex, the labor intensity of personnel is high, human errors are easy to occur, and the operation cost of the scraper conveyor is increased. Disclosure of utility model In order to solve the problems that the hydraulic pressure chain assembly is mostly manually engaged and disengaged, the engagement and disengagement between the hydraulic pressure chain assembly and the permanent magnet motor are realized by manually pulling an engagement and disengagement handle, the operation is complex, the labor intensity of personnel is high, and the operation cost of the scraper conveyor is increased, the application provides a semi-direct-drive permanent magnet driving device. In a first aspect, the present application provides a semi-direct-drive permanent magnetic driving device, which adopts the following technical scheme: A semi-direct-drive permanent magnet driving device comprises A permanent magnet motor including a rotating shaft; the speed reducing assembly and the permanent magnet motor are coaxially arranged, and the speed reducing assembly is arranged on one side of the permanent magnet motor; The chain tightening assembly comprises a connecting cylinder, a mounting seat, an idler wheel and a hydraulic chain tightening device, wherein the connecting cylinder is arranged on one side, away from the speed reducing assembly, of the permanent magnet motor, the mounting seat is arranged on the connecting cylinder, one end of the mounting seat is hinged to the connecting cylinder, the other end of the mounting seat is provided with a telescopic piece connected with the connecting cylinder, the fixed end of the telescopic piece is hinged to the connecting cylinder, the movable end of the telescopic piece is rotatably arranged at one end, away from the connecting cylinder, of the mounting seat, the hydraulic chain tightening device is arranged on the mounting seat, one end of the hydraulic chain tightening device is driven and connected with an action gear, the action gear is positioned in the mounting seat, the mounting seat is connected with the connecting cylinder, the idler wheel is arranged in a space formed by connecting the mounting seat with the connecting cylinder, the action gear is in meshed transmission connection with the idler wheel, the end part of the rotary shaft is sleeved with a large gear, the large gear is positioned in the connecting cylinder, and the telescopic piece is driven to rotate, and the mounting seat is rotatably arranged on the connecting cylinder to be disconnected with the idler wheel or the large gear. By adopting the technical scheme, the permanent magnet motor is used as a power core to efficiently convert electric energy into mechanical energy and provide stable power output for the whole driving device, the speed reducing assembly and the permanent magnet motor are coaxially arranged to convert high-rotation-speed low-torque power output by the permanent magnet motor into low-rotation-speed high-torque power, load requirements can be matched, the applicability of the driving device is improved, in the chain tightening assembly, the telescopic piece drives the mounting seat to rotate around the hinging point, the idler wheel can be accurately meshed with or separated from the large gear, the hydraulic compaction chain de