Commutator angle measuring device

Abstract

The utility model relates to a commutator angle measuring device, which comprises a positioning seat, an inner measuring unit and an outer measuring unit are rotatably arranged on the positioning seat, the inner measuring unit and the outer measuring unit have the same structure, the inner measuring unit comprises a measuring frame, a measuring rod is slidably connected onto the measuring frame, and a spring is connected between the measuring rod and the measuring frame. According to the utility model, the inner measuring unit and the outer measuring unit are cooperatively used, so that the two measuring rods can visually display the measuring angle of the commutator, repeated positioning, measuring, recording and calculating are not needed, and the measuring rods are embedded into the commutator under the action of the spring and do not slide, and abnormity caused by measurement jitter is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of commutator, specifically point to a commutator angle measuring device. BACKGROUND

[0002] The angle of motor rotor commutator needs to be measured and calibrated to ensure the accuracy of motor operation. In the actual measurement process, the commutator needs to be positioned at least twice repeatedly, and the measurement results are read twice to calculate the difference to obtain accurate measurement value. This method needs to be measured multiple times, and the intuitiveness of the measurement value is not strong, which needs to be recorded and calculated. INVENTION CONTENTS

[0003] In view of the above problems, the utility model provides a commutator angle measuring device to at least partially solve the above problems.

[0004] The technical scheme adopted by the utility model is as follows: the utility model provides a commutator angle measuring device, which comprises a positioning seat, a scale is arranged on the positioning seat, an inner measuring unit is rotatably arranged on the positioning seat, an outer measuring unit is rotatably arranged below the inner measuring unit, and the structure of the outer measuring unit and the inner measuring unit is the same.

[0005] Further, the inner measuring unit comprises a measuring frame, the measuring frame is rotatably arranged on the positioning seat, and a measuring rod is slidably connected above the measuring frame.

[0006] Further, in order to facilitate reading the value on the scale, an indicating mark is arranged on the measuring frame.

[0007] Further, a spring is connected between the measuring rod and the measuring frame.

[0008] Further, a plurality of guide columns are arranged on the measuring frame, a sliding block is slidably arranged on the guide column, the measuring rod is slidably arranged on the sliding block, and the spring is connected between the sliding block and the measuring rod.

[0009] Further, in order to fix the height of the sliding block, a tooth groove is arranged on one of the guide columns, a jacking bolt is arranged to penetrate through the sliding block, and the tip of the jacking bolt is matched with the tooth groove.

[0010] Further, a key groove is arranged on the sliding block, and a positioning key matched with the key groove is arranged on the measuring rod.

[0011] The utility model has the beneficial effects as follows: the inner measuring unit and the outer measuring unit are used in cooperation, the two measuring rods can intuitively display the measurement angle of the commutator, the repeated positioning, measurement, recording and calculation are not needed, the measuring rod is embedded into the commutator under the action of the spring, and the measuring rod will not slip and will not produce abnormality due to the shaking of measurement. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic view of commutator angle measuring device for the embodiment of the utility model;

[0013] Figure 2 It is the structural schematic view of inner measuring unit;

[0014] Figure 3 It is the structural schematic view of slider;

[0015] Figure 4 It is the structural schematic view of measuring rod.

[0016] Wherein, 1, positioning seat, 2, rotor commutator, 3, inner measuring unit, 4, outer measuring unit, 5, measuring frame, 6, guide pillar, 7, slider, 8, jacking bolt, 9, measuring rod, 10, tooth slot, 11, spring, 12, indicating mark, 13, keyway, 14, positioning key, 15, scale.

[0017] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model along with the embodiment of the utility model, and do not constitute the limitation of the utility model. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments; based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the scope of the protection of the utility model.

[0019] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model.

[0020] As Figure 1As shown, the utility model discloses a commutator angle measuring device, including positioning seat 1, be equipped with scale 15 on positioning seat 1, scale 15 is angle numerical value, is used for reading the measuring angle of commutator, rotation is equipped with inner measuring unit 3 on positioning seat 1, rotation is equipped with outer measuring unit 4 below inner measuring unit 3, outer measuring unit 4 also rotates on positioning seat 1, the working radius of outer measuring unit 4 is greater than inner measuring unit 3, the structure of outer measuring unit 4 and inner measuring unit 3 is same, the center of positioning seat 1 is used for fixing rotor commutator 2, in some embodiments, outer measuring unit 4 measures the angle corresponding to any commutator vane side wall on commutator, inner measuring unit 3 measures the angle of adjacent rotor side wall below commutator, the included angle between both is the angle numerical value of commutator and rotor, outer measuring unit 4 and inner measuring unit 3 can cooperate measurement, need not repeat measurement positioning, and the measurement result can be directly read with scale 15.

[0021] As Figure 2 As shown, inner measuring unit 3 includes measuring frame 5, measuring frame 5 rotates and is equipped with measuring rod 9 on positioning seat 1, the end of measuring rod 9 is pointed sharp corner shape, in order to insert measuring rod 9 into the gap of commutator or rotor, positioning measurement is carried out, when the measuring rod 9 of outer measuring unit 4 and inner measuring unit 3 is inserted into adjacent gap simultaneously, just can cooperate scale 15 and read corresponding measurement angle.

[0022] In order to facilitate reading the value on scale 15, indicating mark 12 is provided on measuring frame 5, indicating mark 12 coincides with scale 15, facilitating reading.

[0023] In order to prevent the measuring rod 9 from sliding after being inserted into the gap of the commutator or rotor, the measuring rod 9 is more stable, and the measuring rod 9 will not slide due to external shaking, a spring 11 is connected between the measuring rod 9 and the measuring frame 5, and the spring 11 always pulls the measuring rod 9 towards the center of the positioning seat 1.

[0024] Different specifications of commutators have different heights, in order to adapt to the measurement of commutators of different specifications, a plurality of guide columns 6 are provided on the measuring frame 5, a sliding block 7 is slidably arranged on the guide column 6, and the measuring rod 9 is slidably arranged on the sliding block 7. The spring 11 is connected between the sliding block 7 and the measuring rod 9, when the sliding block 7 moves up and down along the guide column 6, the height of the measuring rod 9 on the sliding block 7 can be changed, so that the measuring rod 9 can measure the height according to the demand of the commutator.

[0025] In order to fix the height of the sliding block 7, one of the guide posts 6 is provided with a tooth groove 10, and the sliding block 7 is provided with a through hole for a jacking bolt 8, the tip of the jacking bolt 8 is matched with the tooth groove 10, when it is needed to move the sliding block 7, the jacking bolt 8 is rotated outward, so that the jacking bolt 8 is out of contact with the tooth groove 10, and the sliding block 7 can be moved up and down, after being moved to the working height, the jacking bolt 8 is rotated inward, so that the end of the jacking bolt 8 is engaged with the tooth groove 10, the jacking bolt 8 cannot be moved, and the movement of the sliding block 7 is limited.

[0026] As shown in Figure 3 and Figure 4 Before measurement, the measuring rod 9 needs to be rotated to the gap corresponding to the commutator or rotor, in order to avoid the interference between the measuring rod 9 and the gap, the measuring rod 9 needs to be separated from the commutator or rotor, the sliding block 7 is provided with a key groove 13, and the measuring rod 9 is provided with a positioning key 14 matched with the key groove 13, when the measuring rod 9 is rotated by 90 degrees, the positioning key 14 is perpendicular to the key groove 13, the positioning key 14 is in contact with the side wall of the sliding block 7, the measuring rod 9 is moved outward, the tip of the measuring rod 9 is separated from the commutator or rotor, so as to rotate the outer measuring unit 4 and the inner measuring unit 3 to the corresponding angle, and facilitate positioning measurement, during measurement, the measuring rod 9 is rotated again, so that the positioning key 14 is coincided with the key groove 13, and the measuring rod 9 is moved inward under the action of the spring 11.

[0027] Before use, the height of the measuring rod 9 on the inner measuring unit 3 and the outer measuring unit 4 needs to be adjusted according to the height of the rotor commutator 2, the jacking bolt 8 is loosened, so that the sliding block 7 on the measuring frame 5 can be moved up and down, when the sliding block 7 is moved to the corresponding height, the jacking bolt 8 is tightened again, so that the sliding block 7 is fixed, at this time, the height of the measuring rod 9 is fixed.

[0028] Then, the inner measuring unit 3 is rotated first, the measuring rod 9 is adjusted to a suitable angle, then the measuring rod 9 is rotated, so that the positioning key 14 on the measuring rod 9 is coincided with the key groove 13, the measuring rod 9 slides to the rotor commutator 2 under the action of the spring 11, until the tip of the measuring rod 9 is inserted into the gap of the rotor commutator 2, if the measuring rod 9 is not inserted into the gap, but is in contact with the surface of the rotor commutator 2, at this time, the measuring frame 5 can be slightly rotated, so that the measuring rod 9 is inserted into the gap, the measuring rod 9 is fixed by the gap and cannot be rotated, and the height is fixed, so as to complete the positioning of the measuring rod 9.

[0029] Then, the outer measuring unit 4 is rotated by the same method, so that the measuring rod 9 of the outer measuring unit 4 is inserted into another gap adjacent to the above-mentioned measuring gap, after the positioning of the two is completed, the angle value can be directly read through the corresponding scale 15 value on the indicating mark 12.

[0030] After the measurement is completed, the measuring rod 9 is pulled out and rotated by 90 degrees, so that the measuring rod 9 is fixed relative to the slider 7, the measuring rod 9 is separated from the rotor commutator 2, and the rotor commutator 2 can be taken out.

[0031] It is to be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] The above describes the utility model and its implementation, this kind of description is not limited, the embodiment of the utility model shown in the drawing is only one, the actual structure is not limited to this. In general, if the ordinary skilled person in the art is inspired, without departing from the utility model creation tenet, not creative design the structure mode and example similar to this technical scheme, all should belong to the protection scope of the utility model.

Claims

1. A commutator angle measuring device comprising a positioning seat (1) provided with a scale (15), characterized in that, Also include: Inner measuring unit (3), including measuring frame (5), the measuring frame (5) is rotationally arranged on the positioning seat (1), the measuring rod (9) is slidably connected on the measuring frame (5), and the spring (11) is connected between the measuring rod (9) and the measuring frame (5); Outer measuring unit (4), rotationally arranged on the positioning seat (1), the outer measuring unit (4) and the structure of the inner measuring unit (3) are same.

2. The commutator angle measuring device of claim 1, wherein: The measuring frame (5) is provided with a plurality of guide columns (6), the guide column (6) is slidably provided with a sliding block (7), and the measuring rod (9) is slidably arranged on the sliding block (7).

3. The commutator angle measuring device of claim 2, wherein: The spring (11) is connected between the sliding block (7) and the measuring rod (9).

4. The commutator angle measuring device of claim 2, wherein: The sliding block (7) is provided with a key groove (13), and the measuring rod (9) is provided with a positioning key (14) matched with the key groove (13).

5. The commutator angle measuring device of claim 2, wherein: One of the guide columns (6) is provided with a tooth groove (10), the sliding block (7) is provided with a jacking bolt (8) penetratingly, and the tip of the jacking bolt (8) is matched with the tooth groove (10).

6. The commutator angle measuring device of claim 1, wherein: The measuring frame (5) is provided with an indicating mark (12) for displaying the value of the scale (15).

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