CN219495036U

CN219495036U - Outer diameter cylindricity detection tool for motor rotor

Info

Publication number: CN219495036U
Application number: CN202320578465.XU
Authority: CN
Inventors: 周丹; 周彭振; 徐然然; 李海建; 张鑫; 杜君昌; 刘延俊; 齐继营
Original assignee: Shandong Ouruian Electric Co ltd
Current assignee: Shandong Ouruian Electric Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-08-08
Anticipated expiration: 2033-03-21

Abstract

The utility model relates to the field of rotor cylindricity detection, in particular to a motor rotor outer diameter cylindricity detection tool. The utility model provides a motor rotor outer diameter cylindricity detection tool which comprises a group of brackets symmetrically arranged left and right, a measuring rod arranged on the brackets, a pressing plate for fixing the measuring rod and a plurality of rollers arranged on the brackets. The support comprises a base, two support plates arranged on the base, a fixing plate used for connecting the two support plates, and a plurality of reinforcing rib plates arranged on the outer sides of the support plates, and plays a role in supporting and reinforcing the whole support. The upper end face of each supporting plate is provided with a group of grooves for installing and accommodating the rollers, and the shaft of the motor rotor is placed between the two rollers to rotate through rolling during use. When the motor rotor is used, the motor rotor can roll and rotate on the idler wheel, the gap between the outer diameter of the motor rotor and the measuring rod can be effectively measured, and the motor rotor is used for representing the cylindricity of the outer diameter of the motor rotor.

Description

Outer diameter cylindricity detection tool for motor rotor

Technical Field

The utility model relates to the field of rotor cylindricity detection, in particular to a motor rotor outer diameter cylindricity detection tool.

Background

The cylindricity of the stator and the rotor of the motor can influence the size and uniformity of an air gap between the stator and the rotor of the motor. If the air gap is too small, the sweeping of the chamber is easy to occur, and the machine parts are damaged; the air gap is too large, so that the magnetic resistance is increased, the magnetic induction of the coil is reduced, and the motor performance does not meet the requirements; the uneven air gap can generate unilateral magnetic pulling force, so that the bearing is easy to damage, the deflection of the rotor is increased, the vibration and noise of the motor are increased, the minimum torque is reduced, the efficiency is reduced, and the like. The air gap value of the motor can be measured only after the stator and the rotor are assembled, and only the air gaps at two sides can be measured, so that a measuring tool cannot enter the motor. If the air gap value exceeds the allowable error value, only the stator and the rotor of the motor can be disassembled, so that the construction period of the motor is prolonged. Therefore, the detection of the outer diameter cylindricity of the motor rotor is particularly important before the stator and rotor are assembled.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a motor rotor outer diameter cylindricity detection tool which comprises a group of supports symmetrically arranged left and right, a measuring rod arranged on the supports, a pressing plate for fixing the measuring rod and a plurality of rollers.

Further, the support comprises a base, two support plates arranged on the base, a fixing plate used for connecting the two support plates, and a plurality of reinforcing rib plates arranged on the outer sides of the support plates.

Further, be provided with a plurality of mounting holes that are used for installing fixed measuring rod on the terminal surface before the backup pad, can select the position of installation measuring rod according to motor rotor external diameter size, the clamp plate setting is used for compressing tightly and fixed measuring rod in the dry outside of measurement.

Further, a group of grooves are formed in the upper end face of each supporting plate and used for installing and accommodating rollers, and when the motor rotor is used, the shaft of the motor rotor is placed between the two rollers to rotate through rolling.

Further, the left side surface and the right side surface of the supporting plate are provided with through holes for carrying and hoisting.

Further, the pressing plate is L-shaped, one end of the pressing plate is provided with a hole, the diameter of the hole is the same as that of the mounting hole, and the thickness of the length measuring rod at the other end is the same.

Further, the measuring rod is provided with a hole, the hole size is matched with the hole size of the pressing plate, the side face contacted with the outer diameter of the motor rotor is subjected to chamfering treatment, and the measuring rod is made of a non-magnetic conductive material with stability and rigidity.

According to the utility model, the air gap measurement between the stator and the rotor of the motor is converted into cylindricity detection, and the measuring rod is used as a reference, so that the complex motor assembly is simplified and the measurement accuracy is ensured; the motor rotor outer diameter cylindricity detection with different base numbers and different iron core lengths can be met by the same tool through adjusting the distance between the left bracket and the right bracket and the mounting position of the measuring rod, so that the utilization rate of the tool is improved; the motor rotor shaft is adopted to rotate on the roller, so that the cylindricity of the outer diameter cylindrical surface of the whole rotor can be conveniently measured, and the cylindricity of the outer diameter of the rotor is not only measured at a certain point or intermittently at a certain position, so that the comprehensiveness of the measurement of the cylindricity of the outer diameter of the rotor is ensured.

Drawings

The above and other objects and advantages of the present utility model will become more fully apparent from the following detailed description taken in conjunction with the accompanying drawings, in which identical or similar elements are designated by the same reference numerals.

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic view of a stent of the present utility model.

Fig. 3 is a front view of the present utility model.

Fig. 4 is a left side view of the present utility model.

Fig. 5 is a partial square view of a in fig. 1.

Fig. 6 is a partial square view of fig. 3B.

Description of the reference numerals: 1-motor rotor, 2-axle, 3-support, 31-base, 32-backup pad, 33-fixed plate, 34-deep floor, 35-recess, 36-mounting hole, 4-measuring rod, 5-clamp plate, 6-gyro wheel.

Description of the embodiments

The present utility model will be described in further detail with reference to examples. The advantages and features of the present utility model will become more apparent as the description proceeds. These examples are merely exemplary and do not limit the scope of the utility model in any way. It will be understood by those skilled in the art that various changes and substitutions of details and forms of the technical solution of the present utility model may be made without departing from the spirit and scope of the present utility model, but these changes and substitutions fall within the scope of the present utility model.

Terms such as "comprising" and "including" mean that, in addition to having elements that are directly and explicitly recited in the description and claims, the inventive solution does not exclude the presence of other elements not directly or explicitly recited. In the description herein, directional terms such as "upper", "lower", "front", "rear", "left", "right", etc. are used, and it should be understood that these directional terms are relative terms, which are used for the description and clarification of relative positions, and their corresponding specific orientations may be changed accordingly in accordance with the changes in orientation of the present utility model.

As shown in fig. 1, 2 and 3, the utility model provides a motor rotor outer diameter cylindricity detection tool, which comprises a group of brackets 3 symmetrically arranged left and right, a measuring rod 4 arranged on the brackets 3, a pressing plate 5 for fixing the measuring rod 4 and a plurality of rollers 6 arranged on the brackets 3. The bracket 3 comprises a base 31, two support plates 32 arranged on the base 31, a fixing plate 33 used for connecting the two support plates 32, and a plurality of reinforcing rib plates 34 arranged on the outer side of the support plates 32, and plays a role in supporting and reinforcing the whole bracket. The upper end face of each supporting plate 32 is provided with a group of grooves 35 for installing and accommodating the rollers 6, and the shaft 2 of the motor rotor can be placed between the two rollers 6 to rotate through rolling when in use. When in use, the motor rotor 1 can roll and rotate on the idler wheel 6, and can effectively measure the gap between the outer diameter of the motor rotor and the measuring rod, and is used for representing the cylindricity of the outer diameter of the motor rotor.

As shown in fig. 5, a plurality of mounting holes 36 for mounting the fixed measuring rod 4 are formed in the front end face of the supporting plate 32, the position for mounting the measuring rod 4 can be selected according to the outer diameter of the motor rotor, the pressing plate 5 is arranged on the outer side of the measuring shaft and used for pressing and fixing the measuring rod 4, and according to the diameter and the height of the motor rotor, the same fixture can meet the detection of the outer diameter cylindricity of the motor rotor 1 with different base numbers and different iron core lengths by adjusting the distance between the left bracket 3 and the right bracket and the mounting position of the measuring rod 4, so that the utilization rate of the fixture is improved.

As shown in fig. 1, 2 and 3, the left and right sides of the support plate 32 have a through hole for carrying and lifting. As shown in fig. 6, the pressing plate 5 is L-shaped, and has a hole at one end, the diameter of the hole is the same as that of the mounting hole 36, so as to mount the measuring rod 4, and the thickness of the length measuring rod 4 at the other end is the same, so that the measuring rod 4 can be better pressed, and the stability of the tool is improved.

As shown in fig. 5, the measuring rod 4 has a hole, the hole size is matched with the hole size of the pressing plate 5, and the side surface chamfering treatment contacting with the outer diameter of the motor rotor can effectively avoid the damage of the motor rotor caused by the mutual interference between the measuring rod and the outer diameter of the motor rotor, and the measuring rod is made of a non-magnetic conductive material with stability and rigidity.

Compared with the prior art, the utility model has the following beneficial effects:

1) According to the utility model, the air gap measurement between the stator and the rotor of the motor is converted into cylindricity detection, and the measuring rod is used as a reference.

2) To the mounting position through adjusting the interval of controlling the support and measuring stick, same frock can satisfy the motor rotor external diameter cylindricity detection of different base numbers, different iron core lengths, has improved the utilization ratio of frock.

3) The motor rotor shaft is adopted to rotate on the roller, so that the cylindricity of the outer diameter cylindrical surface of the whole rotor can be conveniently measured, and the cylindricity of the outer diameter of the rotor is not only measured at a certain point or intermittently at a certain position, so that the comprehensiveness of the measurement of the cylindricity of the outer diameter of the rotor is ensured.

4) The adjustable measuring rod and the mutually matched pressing plate structure are designed, so that stability and accuracy in the measuring process can be ensured.

The embodiments in the above examples may be further combined or replaced, and the examples are merely illustrative of preferred embodiments of the present utility model and not intended to limit the spirit and scope of the present utility model, and various changes and modifications made by those skilled in the art to the technical solution of the present utility model without departing from the design concept of the present utility model are all within the scope of the present utility model.

Claims

1. The utility model provides a motor rotor external diameter cylindricity detects frock which characterized in that: comprises a group of supports which are placed in bilateral symmetry, a measuring rod which is arranged on the supports, a pressing plate which is used for fixing the measuring rod and a plurality of rollers.

2. The motor rotor outer diameter cylindricity detection tool of claim 1, wherein: the support comprises a base, two support plates arranged on the base, a fixing plate used for connecting the two support plates, and a plurality of reinforcing rib plates arranged on the outer sides of the support plates.

3. The motor rotor outer diameter cylindricity detection tool of claim 2, wherein: be provided with a plurality of mounting holes that are used for installing fixed measuring rod on the terminal surface before the backup pad, can select the position of installation measuring rod according to motor rotor external diameter size, the clamp plate setting is used for compressing tightly and fixed measuring rod in the dry outside of measurement.

4. The motor rotor outer diameter cylindricity detection tool of claim 3, wherein: the upper end face of each supporting plate is provided with a group of grooves for installing and accommodating the rollers, and the shaft of the motor rotor is placed between the two rollers to rotate through rolling during use.

5. The motor rotor outer diameter cylindricity detection tool of claim 4, wherein: the left side surface and the right side surface of the supporting plate are provided with through holes for carrying and hoisting.

6. The motor rotor outer diameter cylindricity detection tool of claim 5, wherein: the clamp plate is L type, and wherein one end has the hole, and the hole diameter is the same with the mounting hole, and the other end length measurement pole thickness is equal.

7. The motor rotor outer diameter cylindricity detection tool of claim 6, wherein: the measuring rod is provided with a hole, the hole size is matched with the size of the pressing plate hole, the side face of the measuring rod, which is in contact with the outer diameter of the motor rotor, is subjected to chamfering treatment, and the measuring rod is made of a non-magnetic conductive material with stability and rigidity.