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CN-224218256-U - Alternating current motor belt pulley lock nut tightening auxiliary device

CN224218256UCN 224218256 UCN224218256 UCN 224218256UCN-224218256-U

Abstract

The utility model discloses an alternating current motor belt pulley lock nut tightening auxiliary device which comprises a base and a base, wherein the base is fixed on the base, the alternating current motor belt pulley lock nut tightening auxiliary device further comprises a bottom plate, a first supporting and positioning mechanism and a second supporting and positioning mechanism are arranged on the bottom plate, the locking mechanism comprises an upper connecting plate, a lower connecting plate, a screw rod part, a guide shaft, a fixed shaft sleeve and a sleeve, one end of the guide shaft is fixedly connected with the upper connecting plate, the other end of the guide shaft is fixedly connected with the base, one end of the screw rod part is fixedly connected with the upper connecting plate, the other end of the screw rod part is movably connected with the lower connecting plate, the lower connecting plate is movably matched with the guide shaft, one end of the fixed shaft sleeve is fixedly connected with the lower connecting plate, the other end of the fixed shaft sleeve is in transition fit with an alternating current generator rotor shaft, the sleeve is sleeved on the fixed shaft sleeve and is in clearance fit with the fixed shaft sleeve, and the sleeve is also in transition fit with a belt pulley lock nut of the alternating current generator. The utility model has simple structure and convenient operation, and improves the assembly efficiency and the assembly quality of the alternating current generator.

Inventors

  • LI XI
  • HUANG SHAOBO
  • WANG CHUAN
  • LIU YONG
  • LEI YONGCHAO

Assignees

  • 成都华川电装有限责任公司

Dates

Publication Date
20260508
Application Date
20250427

Claims (6)

  1. 1. An alternating current motor pulley lock nut tightening auxiliary device comprises a base (1) and a base (2), wherein the base (2) is fixed on the base (1) and is characterized by further comprising, The left side and the right side of the bottom plate (3) are respectively provided with a first supporting and positioning mechanism and a second supporting and positioning mechanism for supporting and positioning the alternating current generator; A locking mechanism for axial locking alternator rotor shaft, locking mechanism includes even board (4), down links board (5), lead screw part, guiding axle (6), fixed axle sleeve (7), sleeve (8), guiding axle (6) one end and last even board (4) fixed connection, guiding axle (6) other end and base (1) fixed connection, lead screw part one end and last even board (4) fixed connection, lead screw part other end and lower even board (5) swing joint, lower even board (5) still with guiding axle (6) movable fit, fixed axle sleeve (7) one end and lower even board (5) fixed connection, fixed axle sleeve (7) other end and alternator rotor shaft transitional fit, sleeve (8) cover is on fixed axle sleeve (7), and sleeve (8) and fixed axle sleeve (7) clearance fit, sleeve (8) still with alternator's belt pulley lock nut transitional fit.
  2. 2. The alternating current motor pulley lock nut tightening auxiliary device according to claim 1, wherein the first supporting and positioning mechanism comprises a first lower connecting block (10), a first middle connecting block (11) and a first positioning block (12), the first lower connecting block (10) is connected with the base (2), one end of the first middle connecting block (11) is connected with the first lower connecting block (10), the other end of the first middle connecting block (11) is connected with the first positioning block (12), a positioning rib (13) is arranged on the first positioning block (12), and the positioning rib (13) is matched with one end of the alternating current generator.
  3. 3. The fastening auxiliary device for the pulley lock nut of the alternating current motor according to claim 2, wherein the second supporting and positioning mechanism comprises a second lower connecting block (20), a second middle connecting block (21) and a second positioning block (22), the second lower connecting block (20) is connected with the base (2), one end of the second middle connecting block (21) is connected with the second lower connecting block (20), the other end of the second middle connecting block (21) is connected with the second positioning block (22), a U-shaped groove (23) is formed in the second positioning block (22), and the U-shaped groove (23) is matched with the other end of the alternating current generator.
  4. 4. An ac motor pulley lock nut tightening aid according to claim 1, characterized in that the screw member comprises a driver (30), a screw bearing (31), a screw (32), a screw nut (33), the screw bearing (31) being mounted on the upper connecting plate (4), the screw nut (33) being connected with the lower connecting plate (5), the driver (30) being fixedly connected with the screw (32), the screw (32) being fitted with the screw bearing (31), and the screw (32) also being fitted with the screw nut (33).
  5. 5. The alternating current motor pulley lock nut tightening auxiliary device according to claim 1, further comprising a guide rail (40), wherein the guide rail (40) is fixed on the base (2), a sliding groove (41) is formed in the base plate (3), and the guide rail (40) is in sliding fit with the sliding groove (41).
  6. 6. The alternating current motor pulley lock nut tightening auxiliary device according to claim 5, wherein a handle (50) is further arranged on the bottom plate (3), and the handle (50) is connected with the bottom plate (3) through bolts.

Description

Alternating current motor belt pulley lock nut tightening auxiliary device Technical Field The utility model relates to the technical field of auxiliary tools for assembling an alternating-current generator, in particular to an auxiliary device for tightening a locking nut of a pulley of an alternating-current motor. Background In the prior art, the fan of the alternator is usually mounted on the rotor shaft, the belt pulley of the alternator is also mounted on the rotor shaft, the fan is required to be mounted first and then the belt pulley is required to be mounted in the assembly process, but when the pulley lock nut is screwed down, the rotor shaft and the fan can rotate together, so that the pulley lock nut cannot be screwed down, the fan is clamped through a special tool, so that the rotor shaft and the fan cannot rotate along with the fastening force of the pulley lock nut, the fan can be clamped through the special tool only when the alternator is disassembled, and the fan is easy to damage due to the clamping of the tool, so that the screw down of the alternator by adopting the scheme wastes time, and the alternator has great quality hidden trouble. Disclosure of Invention In view of the defects in the prior art, the utility model provides an alternating current motor pulley lock nut tightening auxiliary device. The technical scheme for solving the technical problems is as follows: An AC motor pulley lock nut tightening auxiliary device, comprises a base, a plurality of grooves and a plurality of grooves, wherein the base is fixed on the base, The left side and the right side of the bottom plate are respectively provided with a first supporting and positioning mechanism and a second supporting and positioning mechanism for supporting and positioning the alternating current generator; The locking mechanism comprises an upper connecting plate, a lower connecting plate, a screw rod part, a guide shaft, a fixed shaft sleeve and a sleeve, wherein one end of the guide shaft is fixedly connected with the upper connecting plate, the other end of the guide shaft is fixedly connected with a base, one end of the screw rod part is fixedly connected with the upper connecting plate, the other end of the screw rod part is movably connected with the lower connecting plate, the lower connecting plate is movably matched with the guide shaft, one end of the fixed shaft sleeve is fixedly connected with the lower connecting plate, the other end of the fixed shaft sleeve is in transition fit with the rotor shaft of the alternator, the sleeve is sleeved on the fixed shaft sleeve, the sleeve is in clearance fit with the fixed shaft sleeve, and the sleeve is also in transition fit with a pulley locking nut of the alternator. Further, the first supporting and positioning mechanism comprises a first lower connecting block, a first middle connecting block and a first positioning block, wherein the first lower connecting block is connected with the base, one end of the first middle connecting block is connected with the first lower connecting block, the other end of the first middle connecting block is connected with the first positioning block, positioning ribs are arranged on the first positioning block, and the positioning ribs are matched with one end of the alternating current generator. Further, the second support positioning mechanism comprises a second lower connecting block, a second middle connecting block and a second positioning block, wherein the second lower connecting block is connected with the base, one end of the second middle connecting block is connected with the second lower connecting block, the other end of the second middle connecting block is connected with the second positioning block, a U-shaped groove is formed in the second positioning block, and the U-shaped groove is matched with the other end of the alternating current generator. Further, the screw rod component comprises a driver, a screw rod bearing, a screw rod and a screw rod nut, wherein the screw rod bearing is arranged on the upper connecting plate, the screw rod nut is connected with the lower connecting plate, the driver is fixedly connected with the screw rod, the screw rod is matched with the screw rod bearing, and the screw rod is also matched with the screw rod nut. Further, the device also comprises a guide rail, wherein the guide rail is fixed on the base, a chute is arranged on the bottom plate, and the guide rail is in sliding fit with the chute. Further, a handle is further arranged on the bottom plate, and the handle is connected with the bottom plate through bolts. The utility model has the beneficial effects that the first supporting and positioning mechanism and the second supporting and positioning mechanism are used for supporting and positioning the AC generator, the locking mechanism is used for downwards locking and compacting the rotor shaft of the AC generator, the fixed shaft sleeve passes through the sleeve to real