CN211589930U

CN211589930U - Motor spindle dismounting tool

Info

Publication number: CN211589930U
Application number: CN201922437436.8U
Authority: CN
Inventors: 吴斌; 郑炜
Original assignee: Fujian Zhongyan Electromechanical Technology Co ltd
Current assignee: Fujian Zhongyan Electromechanical Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-29
Anticipated expiration: 2029-12-30

Abstract

A motor spindle dismounting tool is used for dismounting a spindle of a motor, the motor comprises a motor rotor, and a spindle mounting hole is formed in the end face of one side of the motor rotor; the inner surface of the main shaft mounting hole is provided with a first internal thread, and the motor main shaft dismounting tool comprises a fixed sleeve and a pushing-out assembly; the push-out assembly comprises a driving part, a limiting circular section, a threaded section and a push-out section; the driving part comprises a nut arranged on the end face of the limiting circular section; the fixed sleeve comprises an outer circle section positioned outside the main shaft mounting hole and an inner circle section which extends out of one side end face of the outer circle section and is positioned in the main shaft mounting hole; a push-out channel for the push-out section to pass through is arranged in the fixed sleeve; and a second internal thread matched with the second external thread is arranged on the inner surface of the push-out channel. The utility model discloses simple structure is ingenious, can demolish motor spindle safely, accurately and laborsavingly.

Description

Motor spindle dismounting tool

Technical Field

The utility model relates to a frock is dismantled to motor spindle belongs to the main shaft and dismantles the field.

Background

The main shaft means a shaft that receives power from an engine or a motor and transmits it to other members. The main shaft needs frequent maintenance and repair, because motor spindle's installation characteristics, it receives the restriction of many factors at the dismantlement in-process, for example need protect the complete of main shaft surface, dismantlement in-process axial gradient can not deviate, can't dismantle with normal spanner, need adopt multiple instrument cooperation to use and just can dismantle, take a lot of trouble and hard, cause the damage to the main shaft moreover easily.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a motor spindle dismantles frock, simple structure, required instrument design benefit can be under the condition that does not harm the main shaft, and motor spindle is dismantled to accuracy, laborsaving and safety.

The technical scheme of the utility model as follows:

a motor spindle dismounting tool is used for dismounting a spindle of a motor, the motor comprises a motor rotor, a spindle mounting hole is formed in one side end face of the motor rotor, a motor spindle to be dismounted is mounted in the spindle mounting hole, a first internal thread is arranged on the inner surface of the spindle mounting hole, and the motor spindle dismounting tool comprises a fixing sleeve and a pushing-out assembly;

the push-out assembly comprises a driving part, a limiting circular section, a threaded section and a push-out section; the driving part comprises a nut arranged on the end face of the limiting circular section; the thread section is arranged between the push-out section and the limiting circular section; the surface of the thread section is provided with a second external thread; the diameter of the limiting circular section is larger than that of the threaded section, and the diameter of the threaded section is larger than that of the pushing section;

the fixed sleeve comprises an outer circle section positioned outside the main shaft mounting hole and an inner circle section which extends out of one side end face of the outer circle section and is positioned in the main shaft mounting hole; a push-out channel for the push-out section to pass through is arranged in the fixed sleeve; a second internal thread matched with the second external thread is arranged on the inner surface of the push-out channel; the outer surface of the inner circle section is provided with a first external thread which is matched with the first internal thread and is in threaded connection, so that the fixing sleeve is fixed on the end face of one side of the motor rotor.

Furthermore, the end face of the push-out section is provided with a circular bulge.

Furthermore, a limiting hole groove is formed in the end face, on one side of the inner circle section, of the outer circle section.

Furthermore, the driving part also comprises a rotating through hole which radially penetrates through the limiting circular section and a rotating rod which is arranged in the rotating through hole in a penetrating manner.

Furthermore, the outer surface of the excircle section is provided with a pair of mill flats.

The utility model discloses following beneficial effect has:

1. the utility model discloses simple structure, processing is convenient, dismantles the effect that motor spindle played the province time and practices thrift manufacturing cost.

2. The utility model discloses can be in the in-process of dismantling motor spindle protect the complete on main shaft surface, avoid dismantling in-process axial gradient too big.

3. The utility model discloses can dismantle and save workman's strength, can dismantle the comparatively inseparable main shaft with the motor contact.

Drawings

Fig. 1 is an exploded view of the overall structure of the present invention;

fig. 2 is a sectional view of the hollow sleeve of the present invention;

FIG. 3 is a structural diagram of the pushing assembly of the present invention;

fig. 4 is a structural sectional view in operation of the present invention.

The reference numbers in the figures denote:

1. fixing the sleeve; 11. an outer circle section; 111. milling flatly; 12. an inner circle section; 2. a push-out assembly; 21. a nut; 22. a limiting circular section; 23. a threaded segment; 24. a push-out section; 241. a circular protrusion; 25. rotating the through hole; 26. a rotating rod; 27. a drive section; 3. a first external thread; 4. a second internal thread; 5. a second external thread; 6. a first internal thread; 7. a limiting hole groove; 8. a motor; 81. a motor rotor; 82. a main shaft mounting hole; 83. a motor spindle.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-3, a motor spindle dismounting tool is used for dismounting a spindle of a motor 8, the motor 8 includes a motor rotor 81, and a spindle mounting hole 82 is formed in an end surface of one side of the motor rotor 81; a motor spindle 83 to be disassembled is arranged in the spindle mounting hole 82; the method is characterized in that: the inner surface of the main shaft mounting hole 82 is provided with a first internal thread 6; the motor spindle dismounting tool comprises a fixed sleeve 1 and a pushing-out assembly 2;

the push-out assembly 2 comprises a driving part 27, a limiting circular section 22, a threaded section 23 and a push-out section 24; the driving part 27 comprises a nut 21 arranged on the end face of the limiting circular section 22; the thread section 23 is arranged between the push-out section 24 and the limit circular section 22; the surface of the threaded section 23 is provided with a second external thread 5; the diameter of the limiting circular section 22 is larger than that of the threaded section 23, and the diameter of the threaded section 23 is larger than that of the push-out section 24;

the fixed sleeve 1 comprises an outer circle section 11 positioned outside the main shaft mounting hole 82 and an inner circle section 12 extending out of one side end face of the outer circle section 11 and positioned in the main shaft mounting hole 82; a push-out channel 13 through which the push-out section 24 passes is arranged in the fixed sleeve 1; a second internal thread 4 matched with the second external thread 5 is arranged on the inner surface of the push-out channel 13; the outer surface of the inner circular section 12 is provided with a first external thread 3 which is in threaded connection with the first internal thread 6 in a matched mode, so that the fixing sleeve 1 is fixed on the end face of one side of the motor rotor 81.

Wherein, the end surface of the push-out section 24 is provided with a circular protrusion 241.

As can be seen from the above description, the circular protrusion 241 on the end surface of the push-out section 24 facilitates the uniform application of the push-out force to the spindle to be pushed out, and in consideration of various errors that may occur in the manufacturing and assembling processes of the parts, the circular protrusion 241 can concentrate the force on the position of the spindle relative to the center, thereby avoiding the increase of the push-out difficulty when the outer edge of the spindle is stressed too much to cause inclination.

Wherein, the end face of one side of the inner circle section 12 on the outer circle section 11 is provided with a limit hole groove 7.

As can be seen from the above description, the limiting hole 7 can prevent the threaded section 23 from completely extending out of the inner circular section 12 or the limiting circular section 22 from entering the push-out channel 13 to damage the second internal thread 4 when the nut 21 is screwed; on the one hand, the push-out assembly 2 is prevented from falling out of the sleeve, and on the other hand, the situation that the nut 21 cannot be clamped and cannot be reset is avoided.

The driving part 27 further includes a rotation through hole 25 radially passing through the limiting circular segment 22, and a rotation rod 26 penetrating through the rotation through hole 25.

As can be seen from the above description, the provision of the rotation through hole 25 for the rotation rod 26 to pass through makes it more labor-saving to rotate the rotation rod 26 to push out the spindle; the embodiment can be changed when the nut is rotated and slips due to the excessive force required, namely, the rotating rod 26 is rotated to push the main shaft to ensure that the dismounting work is normally carried out.

Wherein, the outer surface of the outer circle section 11 is provided with a pair of mill flats 111.

As can be seen from the above description, the wrench is used on the mill flat 11 to fix the fixing sleeve 1 on the motor.

The utility model discloses a theory of operation:

a motor spindle dismounting tool is used for dismounting a spindle of a motor 8, the motor 8 comprises a motor rotor 81, a spindle mounting hole 82 is formed in the end face of one side of the motor rotor 81, and a motor spindle 83 to be dismounted is mounted in the spindle mounting hole 82; the motor spindle dismounting tool comprises a fixed sleeve 1 and a pushing-out assembly 2;

the first external thread 3 of the fixed sleeve 1 is in threaded connection with the first internal thread 6 arranged in the spindle mounting hole 82 of the motor 8, so that the fixed sleeve 1 is fixed on one side end face of the motor rotor 81; the push-out component 2 is arranged in the push-out channel 13 of the fixed sleeve 1 in a penetrating manner; a second internal thread 4 matched with the second external thread 5 is arranged on the inner surface of the push-out channel 13; when the nut 21 of the pushing-out assembly 2 is screwed, the pushing-out section 24 is spirally descended, and the circular boss 241 is contacted with the center of the upper surface of the main shaft, so that the main shaft 83 of the motor is pushed to move along the axial direction;

when the required force is large, the rotating rod 26 penetrates through the rotating through hole 25, and the rotating rod 26 is rotated, so that the aim of labor-saving spindle disassembly is achieved.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a frock is dismantled to motor spindle for the main shaft of motor (8) is dismantled, motor (8) include electric motor rotor (81), be provided with main shaft mounting hole (82) on electric motor rotor (81) a side end face, install motor spindle (83) that will dismantle in main shaft mounting hole (82), its characterized in that: a first internal thread (6) is arranged on the inner surface of the main shaft mounting hole (82); the motor spindle dismounting tool comprises a fixed sleeve (1) and a pushing-out assembly (2);

the push-out assembly (2) comprises a driving part (27), a limiting circular section (22), a threaded section (23) and a push-out section (24); the driving part (27) comprises a nut (21) arranged on the end face of the limiting circular section (22); the thread section (23) is arranged between the push-out section (24) and the limiting circular section (22); a second external thread (5) is arranged on the surface of the thread section (23); the diameter of the limiting circular section (22) is larger than that of the threaded section (23), and the diameter of the threaded section (23) is larger than that of the push-out section (24);

the fixed sleeve (1) comprises an outer circle section (11) positioned outside the main shaft mounting hole (82) and an inner circle section (12) extending out of one side end face of the outer circle section (11) and positioned in the main shaft mounting hole (82); a push-out channel (13) for the push-out section (24) to pass through is arranged in the fixed sleeve (1); a second internal thread (4) matched with the second external thread (5) is arranged on the inner surface of the push-out channel (13); the outer surface of the inner circular section (12) is provided with a first external thread (3) which is matched with the first internal thread (6) in threaded connection, so that the fixing sleeve (1) is fixed on the end face of one side of the motor rotor (81).

2. The motor spindle dismounting tool according to claim 1, characterized in that: the end surface of the push-out section (24) is provided with a circular bulge (241).

3. The motor spindle dismounting tool according to claim 1, characterized in that: and a limiting hole groove (7) is formed in the end face of one side of the outer circular section (11) relative to the inner circular section (12).

4. The motor spindle dismounting tool according to claim 1, characterized in that: the driving part (27) further comprises a rotating through hole (25) radially penetrating through the limiting circular section (22) and a rotating rod (26) penetrating through the rotating through hole (25).

5. The motor spindle dismounting tool according to claim 1, characterized in that: the outer surface of the outer circle section (11) is provided with a pair of milling flats (111).