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CN-224218242-U - Plug gauge tool

CN224218242UCN 224218242 UCN224218242 UCN 224218242UCN-224218242-U

Abstract

The utility model provides a plug gauge tool which can be placed in an inner circle of a stator, and comprises a first tool split body, a second tool split body and a locking part, wherein the first tool split body and the second tool split body are assembled and spliced to form the tool part, the locking part is assembled in the tool part, the locking part has a locking state, and when the locking part is in the locking state, the locking part exerts outward force on the tool part along the radial direction of the stator so as to enable the tool part to be supported on the inner peripheral surface of the stator in a collision mode. According to the utility model, in the process of sleeving the hot jacket shell on the stator until cooling, the plug gauge tool always forms a support for the stator from the inside, so that the extrusion of the shell to the stator can be reduced, the deformation degree of an air gap between the stator and the rotor can be reduced, and finally, the efficiency, torque fluctuation, electromagnetic noise and the like of the motor are obviously improved.

Inventors

  • YE ZHENGHAO

Assignees

  • 珠海格力电器股份有限公司

Dates

Publication Date
20260508
Application Date
20250427

Claims (12)

  1. 1. The plug gauge tool can be placed in an inner circle of a stator and is characterized by comprising a first tool split body (1), a second tool split body (2) and a locking part (3), wherein the first tool split body (1) and the second tool split body (2) are assembled and spliced to form a tool part, the locking part (3) is assembled in the tool part, the locking part (3) is in a locking state, and when the locking part (3) is in the locking state, the locking part (3) is applied to the tool part outwards along the radial direction of the stator so as to enable the tool part to be supported on the inner peripheral surface of the stator in a collision mode.
  2. 2. Plug gauge tooling according to claim 1, wherein the locking member (3) further has an unlocked state, the locking member (3) relieving the tooling member from the radially outward force when the locking member (3) is in the unlocked state.
  3. 3. The plug gauge tool according to claim 1, wherein the first tool split body (1) is provided with a first assembling surface (4) and a first clamping portion (5), a first clamping groove is formed between the first assembling surface (4) and the first clamping portion (5), the second tool split body (2) is provided with a second assembling surface (6) and a second clamping portion (7), a second clamping groove is formed between the second assembling surface (6) and the second clamping portion (7), the width of the first clamping portion (5) is smaller than the groove degree of the second clamping groove, the width of the second clamping portion (7) is smaller than the groove degree of the first clamping groove, and after the first clamping portion (5) is clamped in the second clamping groove and the second clamping portion (7) is clamped in the first clamping groove, the first tool split body (1) and the second tool split body (2) form a part.
  4. 4. A plug gauge tooling according to claim 3, wherein the first tooling split body (1) has a first outer curved surface (8) with an arc shape, the first outer curved surface (8) has a radius of curvature R 1 , the second tooling split body (2) has a second outer curved surface (9) with an arc shape, the second outer curved surface (9) has a radius of curvature R 2 , the first clamping portion (5) has a width D 1 ,D 1 =0.2R 1 , the first clamping groove has a width D 2 ,0.23R 2 ＜D 2 ＜0.25R 2 , the second clamping portion (7) has a width D 3 ,D 3 =0.2R 2 , and the second clamping groove has a width D 4 ,0.23R 1 ＜D 4 ＜0.25R 1 .
  5. 5. Plug gauge tooling according to claim 2, wherein a first groove (10) is formed in the first tooling split body (1), the first groove (10) is provided with a first groove wall surface which extends along the circumferential direction of the first tooling split body (1) and is arc-shaped, the curvature radius of the first groove wall surface is gradually reduced along the circumferential direction of the first tooling split body (1), the locking component (3) is provided with a first locking arm (31), the first locking arm (31) is positioned in the first groove (10), the free end of the first locking arm (31) is provided with a first matching surface (11) which is arc-shaped, and the curvature radius of the first matching surface (11) is between the minimum curvature radius and the maximum curvature radius of the first groove wall surface; A second groove (12) is formed in the second tool split body (2), the second groove (12) is provided with a second groove wall surface which extends along the circumferential direction of the second tool split body (2) and is arc-shaped, the curvature radius of the second groove wall surface is gradually reduced along the circumferential direction of the second tool split body (2), the locking component (3) is provided with a second locking arm (32), the second locking arm (32) is positioned in the second groove (12), the free end of the second locking arm (32) is provided with a second matching surface (13) which is arc-shaped, and the curvature radius of the second matching surface (13) is between the minimum curvature radius and the maximum curvature radius of the second groove wall surface; The locking member (3) is switched between the locked state and the unlocked state by rotation relative to the tool member.
  6. 6. Plug gauge tooling according to claim 5, wherein the first tooling part (1) has a first curved outer surface (8) with an arc shape, the radius of curvature of the first curved outer surface (8) being R 1 , the radius of curvature of the first groove wall being reduced by K 1 R 1 after each rotation of the first locking arm (31) a 1 degrees along the circumferential direction of the first groove (10), wherein 22 ° < a 1 ＜30°,1.2%＜K 1 is less than or equal to 1.5%, the second tooling part (2) has a second curved outer surface (9) with an arc shape, the radius of curvature of the second curved outer surface (9) being R 2 , the radius of curvature of the second groove wall being reduced by K 2 R 2 after each rotation of the second locking arm (32) a 2 degrees along the circumferential direction of the second groove (12), wherein 22 ° < a 2 ＜30°,1.2%＜K 2 is less than or equal to 1.5%.
  7. 7. The plug gauge tooling of claim 6, wherein the central angle corresponding to the first groove wall surface is b 1 ,3a 1 ＜b 1 ＜4a 1 , and the central angle corresponding to the second groove wall surface is b 2 ,3a 2 ＜b 2 ＜4a 2 .
  8. 8. Plug gauge tooling according to claim 6, wherein, when the locking member (3) is in the locked state, the first outer curved surface (8) and the second outer curved surface (9) are both in abutment with the inner circumferential surface of the stator.
  9. 9. Plug gauge tooling according to claim 5, characterized in that the locking part (3) also has an operating shaft (33), the first locking arm (31) and the second locking arm (32) being both on the operating shaft (33), the operating shaft (33) extending in the axial direction of the tooling part from the interior of the tooling part to the exterior of the tooling part; And/or a first stop structure (14) is formed in the first tool split body (1), the first stop structure (14) is used for forming a stop for the first lock arm (31) in the process of rotating the first lock arm (31) along the first groove (10), a second stop structure (15) is formed in the second tool split body (2), and the second stop structure (15) is used for forming a stop for the second lock arm (32) in the process of rotating the second lock arm (32) along the second groove (12).
  10. 10. Plug gauge tooling according to claim 9, wherein the operating shaft (33) is assembled with a power wrench (16), the power wrench (16) being external to the tooling component.
  11. 11. Plug gauge tooling according to claim 10, characterized in that the operating shaft (33) comprises a main body and a clamping protrusion (17) formed on the main body, the power wrench (16) is internally provided with a slot (18) and a third clamping groove (19) communicated with the slot (18), the main body is inserted into the slot (18), and the clamping protrusion (17) is clamped into the third clamping groove (19).
  12. 12. Plug gauge tooling according to claim 1, characterized in that the first tooling split (1) is structurally identical to the second tooling split (2).

Description

Plug gauge tool Technical Field The utility model belongs to the technical field of motor assembly, and particularly relates to a plug gauge tool. Background At present, a stator heat jacket shell is still taken as a main stream method for fixing a motor stator in the assembly process of a compressor, and the method is based on interference fit between the shell and the motor stator, and the fixing between the shell and the motor stator is realized by combining heat expansion and cold contraction of a metal shell. However, the method can enable the shell to extrude the stator, so that the stator is irregularly deformed, and then an air gap between the stator and the rotor becomes uneven, and finally, indexes such as motor efficiency, torque fluctuation, electromagnetic noise and the like are negatively influenced. Disclosure of utility model Therefore, the utility model provides a plug gauge tool, which can solve the technical problems that the stator of a motor is fixed in the assembly process of the compressor, the stator is irregularly deformed by adopting a stator hot jacket shell, so that an air gap between the stator and the rotor becomes uneven, and finally, indexes such as motor efficiency, torque fluctuation, electromagnetic noise and the like are negatively influenced. In order to solve the problems, the utility model provides a plug gauge tool which can be placed in an inner circle of a stator, wherein the plug gauge tool comprises a first tool split body, a second tool split body and a locking part, the first tool split body and the second tool split body are assembled and spliced to form a tool part, the locking part is assembled in the tool part, the locking part is in a locking state, and when the locking part is in the locking state, the locking part exerts force on the tool part outwards along the radial direction of the stator so as to enable the tool part to be supported on the inner peripheral surface of the stator in a collision mode. In some embodiments, the locking member further has an unlocked state, and the locking member removes a force radially outward from the tooling member when the locking member is in the unlocked state. In some embodiments, the first tool split body is provided with a first assembling surface and a first clamping portion, a first clamping groove is formed between the first assembling surface and the first clamping portion, the second tool split body is provided with a second assembling surface and a second clamping portion, a second clamping groove is formed between the second assembling surface and the second clamping portion, the width of the first clamping portion is smaller than the groove degree of the second clamping groove, the width of the second clamping portion is smaller than the groove degree of the first clamping groove, and after the first clamping portion is clamped in the second clamping groove and the second clamping portion is clamped in the first clamping groove, the first tool split body and the second tool split body are combined to form the tool component. In some embodiments, the first tool split body has a first outer curved surface with an arc shape, a curvature radius of the first outer curved surface is R 1, the second tool split body has a second outer curved surface with an arc shape, a curvature radius of the second outer curved surface is R 2, a width of the first clamping portion is D 1,D1＝0.2R1, a width of the first clamping groove is D 2,0.23R2＜D2＜0.25R2, a width of the second clamping portion is D 3,D3＝0.2R2, and a width of the second clamping groove is D 4,0.23R1＜D4＜0.25R1. In some embodiments, the first tool part is internally provided with a first groove, the first groove is provided with a first groove wall surface which extends along the circumferential direction of the first tool part and takes an arc shape, the curvature radius of the first groove wall surface is gradually reduced along the circumferential direction of the first tool part, the locking component is provided with a first locking arm, the first locking arm is positioned in the first groove, the free end of the first locking arm is provided with a first matching surface which takes an arc shape, the curvature radius of the first matching surface is between the minimum curvature radius and the maximum curvature radius of the first groove wall surface, the second tool part is internally provided with a second groove, the second groove is provided with a second groove wall surface which extends along the circumferential direction of the second tool part and takes an arc shape, the curvature radius of the second groove wall surface is gradually reduced along the circumferential direction of the second tool part, the locking component is provided with a second locking arm, the second locking arm is positioned in the second groove, the free end of the second locking arm is provided with a second matching surface, the curvature radius of the second matching sur