CN217562999U - Long service life's commutator - Google Patents

Abstract

The utility model relates to a commutator technical field specifically is a long service life's commutator, including molding compound, carbon piece and commutator segment, the ring is equipped with a plurality of mounting grooves on the molding compound, the commutator segment is installed in the mounting groove, the both ends of mounting groove are equipped with the fixed slot, the bottom both ends of commutator segment are equipped with the fixed block, the utility model discloses in installing first commutator segment into the mounting groove, passing through the draw-in groove with the carbon piece again and being connected with the kelly, later with second commutator segment installation into the mounting groove, the kelly on the stopper is connected with the draw-in groove of the carbon piece other end, with the carbon piece card between first commutator segment and second commutator segment, because the carbon piece on the surface of commutator segment body is roughly the same with the carbon brush of motor in inside organization and nature, both are also roughly the same in hardness, the high-speed operation of motor carbon brush direct with the carbon piece contact, can not cause wearing and tearing to the commutator segment body, make product technical performance good more stable, prolong its life.

Description

Long service life's commutator

Technical Field

The utility model relates to a commutator technical field specifically is a long service life's commutator.

Background

Commutators for electric motors are generally classified into flat type commutators (i.e., the bodies of the segments are perpendicular to the rotational axis of the commutator) and cylindrical type commutators (i.e., the bodies of the segments are parallel to the rotational axis of the commutator). Chinese patent specification CN 1234198C (granted publication date: 28/12/2005, patent No. 03107188.0) discloses a planar carbon commutator, which comprises a commutator segment, a molding compound, and a carbon block, wherein a body of the commutator segment is perpendicular to a rotation axis of the commutator segment, the commutator segment is disposed in the molding compound and exposed out of an outer surface of the commutator segment body, a silver-copper alloy layer is plated on the outer surface of the commutator segment body, a mixed strong adhesive layer is coated on the silver-copper alloy layer, and the carbon block is disposed on the mixed strong adhesive layer. The planar carbon commutator has a limited application range and cannot meet the use of motors with more structures. In the conventional cylindrical commutator, the commutator segment body is easily abraded due to the long-term direct contact between the commutator segment body and the carbon brush of the motor; and the product is easy to generate sparks during the high-speed operation of the motor, thereby influencing the technical performance of the cylindrical commutator and shortening the service life of the cylindrical commutator.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a commutator that installs firm long service life, which is not enough for the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a long service life's commutator, includes moulding compound, carbon piece and commutator segment, the last winding of moulding compound is equipped with a plurality of mounting grooves, the commutator segment is installed in the mounting groove, the both ends of mounting groove are equipped with the fixed slot, the bottom both ends of commutator segment are equipped with the fixed block, the both ends of moulding compound are equipped with the thread groove, thread groove and fixed slot intercommunication, be equipped with spacing bolt in the thread groove, spacing bolt runs through the thread groove and is connected with the fixed block, be equipped with the rotation button on the spacing bolt, be equipped with the screw thread on the spacing bolt and be connected with the thread groove, be equipped with the recess on the commutator segment, the both ends of recess are equipped with the kelly, the both ends of carbon piece are equipped with the draw-in groove, draw-in groove and kelly joint.

In order to improve the fastening nature of spacing bolt installation, the utility model discloses the improvement has, the upper and lower both ends of thread groove are equipped with the spacing groove, the both sides of spacing groove are equipped with the dashpot, install the spring in the dashpot, the spacing inslot is equipped with the stopper, the both sides of stopper are equipped with the buffer block, the buffer block is located the top and the spring coupling of dashpot, the top and the spacing bolt of stopper are contradicted, the spacing bolt is the toper structure with the part of stopper contact.

For the installation of convenient carbon piece, the utility model discloses the improvement has, the switching-over piece includes first switching-over piece and second switching-over piece, first switching-over piece and the concatenation of second switching-over piece, the one end of first switching-over piece is equipped with the angle of buckling, the one end of second switching-over piece is equipped with the installation piece, be equipped with the kelly on the installation piece.

In order to rotate the limit bolt conveniently, the utility model discloses the improvement has, the surface of rotating the button is equipped with anti-skidding line.

In order to improve the life of spring and spacing bolt, the utility model discloses the improvement has, the surface coating of spring and spacing bolt has lubricating oil and anticorrosive lacquer.

For the installation of first commutator segment and second commutator segment of convenience, the utility model discloses the improvement has, the inboard of mounting groove is equipped with the spout, the both sides of first commutator segment and second commutator segment are equipped with the draw runner and are connected with the spout.

(III) advantageous effects

Compared with the prior art, the utility model provides a long service life's commutator possesses following beneficial effect:

the utility model discloses in installing and installing first commutator segment installation into the mounting groove, pass through the draw-in groove with the carbon piece again and be connected with the kelly, later with second commutator segment installation into the mounting groove in, the kelly on the stopper is connected with the draw-in groove of the carbon piece other end, with the carbon piece card between first commutator segment and second commutator segment, because carbon piece on the surface of commutator segment body is the same on the nature with the carbon brush of motor in inside organization, both are also the same on the hardness on a large scale, the carbon brush directly contacts with the carbon piece when the motor operates at a high speed, can not cause wearing and tearing to the commutator segment body, make product technical performance good more stable, prolong its life.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the commutator segment of the present invention;

FIG. 4 is a schematic view of the thread groove of the present invention;

in the figure: 1. molding a plastic material; 2. a carbon sheet; 3. a limit bolt; 4. a rotating knob; 5. a thread groove; 6. a commutator segment; 7. bending corners; 8. a first commutator segment; 9. a second commutator segment; 10. a fixed block; 11. a clamping rod; 12. mounting blocks; 13. a thread; 14. a buffer tank; 15. a spring; 16. a buffer block; 17. a limiting block;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model relates to a long service life's commutator, including molding compound 1, carbon piece 2 and commutator segment 6, the ring is equipped with a plurality of mounting grooves on the molding compound 1, commutator segment 6 is installed in the mounting groove, the both ends of mounting groove are equipped with the fixed slot, the bottom both ends of commutator segment 6 are equipped with fixed block 10, the both ends of molding compound 1 are equipped with thread groove 5, thread groove 5 and fixed slot intercommunication, be equipped with stop bolt 3 in the thread groove 5, stop bolt 3 runs through thread groove 5 and is connected with fixed block 10, be equipped with on the stop bolt 3 and rotate button 4, be equipped with screw thread 13 on the stop bolt 3 and be connected with thread groove 5, be equipped with the recess on the commutator segment 6, the both ends of recess are equipped with kelly 11, the both ends of carbon piece 2 are equipped with the draw-in groove, draw-in groove and kelly 11 joints.

In this embodiment, the upper and lower both ends of thread groove 5 are equipped with the spacing groove, the both sides of spacing groove are equipped with buffer slot 14, install spring 15 in the buffer slot 14, the spacing inslot is equipped with stopper 17, the both sides of stopper 17 are equipped with buffer block 16, buffer block 16 is located the top and the spring 15 of buffer slot 14 and is connected, stopper 17's top is contradicted with stop bolt 3, the part of stop bolt 3 and the contact of stopper 17 is the toper structure, when twisting stop bolt 3 and fixed block 10 and being connected, because stop bolt 3 is the toper structure, extrudees stopper 1712 to both sides when 5 internal rotations to the thread groove, and stop bolt 17 is when the internal contraction under spring 15's effect to press from both sides stop bolt 3, prevent that stop bolt 3 from taking place to become flexible after being connected with fixed block 10, thereby improve the fastening nature of stop bolt 3 installation.

In this embodiment, commutator segment 6 includes first commutator segment 8 and second commutator segment 9, first commutator segment 8 and the concatenation of second commutator segment 9, the one end of first commutator segment 8 is equipped with angle 7 of buckling, the one end of second commutator segment 9 is equipped with installation piece 12, be equipped with kelly 11 on the installation piece 12, at first install first commutator segment 8 into the mounting groove when the installation, pass through the draw-in groove with carbon piece 2 again and be connected with kelly 11, later install second commutator segment 9 into the mounting groove in, kelly 11 on the installation piece 12 is connected with the draw-in groove of the carbon piece 2 other end, blocks carbon piece 2 between first commutator segment 8 and second commutator segment 9.

In this embodiment, the surface of the rotating button 4 is provided with anti-slip lines, so that the limiting bolt 3 can be conveniently rotated.

In this embodiment, spring 15 and spacing bolt 3's surface spraying has lubricating oil and anticorrosive paint, prevents that spacing bolt 3 and spring 15 from rustting to influence the use to improve spring 15 and spacing bolt 3's life.

In this embodiment, the inboard of mounting groove is equipped with the spout, the both sides of first commutator segment 8 and second commutator segment 9 are equipped with the draw runner and are connected with the spout, to the position location of first commutator segment 8 and the installation of second commutator segment 9, improve the precision of installation to and the convenience of installation.

To sum up, this long service life's commutator, when using, at first install first commutator segment 8 into the mounting groove, pass through the draw-in groove with clamping bar 11 with carbon piece 2 again and be connected, later install second commutator segment 9 into the mounting groove in, clamping bar 11 on stopper 17 is connected with the draw-in groove of the carbon piece 2 other end, with carbon piece 2 card between first commutator segment 8 and second commutator segment 9, be connected with fixed block 10 through rotating button 4 rotatory spacing bolt 3 and fix commutator segment 6, because spacing bolt 3 is the toper structure, with stopper 17 to both sides extrusion when rotating to screw thread 13 groove 5, stopper 17 is when the effect of spring 15 is inside shrink, and press from both sides spacing bolt 3, prevent that spacing bolt 3 from taking place not hard up after being connected with fixed block 10, thereby improve the fastening nature of spacing bolt 3 installation, only need unscrew spacing bolt 3 when changing carbon piece 2, take off second commutator segment 9, can take off carbon piece 2 and change, spring 15 and the surface of bolt 3 have lubricating oil and spacing bolt 3 to take place not become flexible, prevent that spacing bolt 3 and the high-speed carbon piece contact carbon piece 2 from the high-speed carbon brush body and the high-speed carbon brush body from also can not cause the same with the high-speed motor, thereby the high-speed motor is more the high-speed and the high-speed motor is more favorable to the quality of carbon piece, thereby the carbon piece, the motor is more, thereby the carbon piece is more favorable to be in the motor, the life of the motor is more, the carbon piece is prolonged, the motor is not to be in the same, the high-speed is more, the motor is more favorable to be in contact, the carbon piece, the motor is favorable to be more, the motor is favorable to be more, the carbon piece is favorable to be in contact, the high-speed is favorable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a long service life's commutator, its characterized in that, includes molding compound (1), carbon piece (2) and commutator segment (6), the ring is equipped with a plurality of mounting grooves on molding compound (1), commutator segment (6) are installed in the mounting groove, the both ends of mounting groove are equipped with the fixed slot, the bottom both ends of commutator segment (6) are equipped with fixed block (10), the both ends of molding compound (1) are equipped with thread groove (5), thread groove (5) and fixed slot intercommunication, be equipped with spacing bolt (3) in thread groove (5), spacing bolt (3) run through thread groove (5) and are connected with fixed block (10), be equipped with on spacing bolt (3) and rotate button (4), be equipped with screw thread (13) on spacing bolt (3) and be connected with thread groove (5), be equipped with the recess on commutator segment (6), the both ends of recess are equipped with kelly (11), the both ends of carbon piece (2) are equipped with the draw-in groove, draw-in groove and kelly (11) joint.

2. The commutator with the long service life according to claim 1, characterized in that the upper and lower ends of the thread groove (5) are provided with limit grooves, the two sides of the limit grooves are provided with buffer grooves (14), springs (15) are installed in the buffer grooves (14), limit blocks (17) are arranged in the limit grooves, the two sides of the limit blocks (17) are provided with buffer blocks (16), the top of the buffer block (16) located in the buffer groove (14) is connected with the springs (15), the top of the limit block (17) is abutted against the limit bolt (3), and the contact part of the limit bolt (3) and the limit block (17) is in a conical structure.

3. The commutator with long service life according to claim 2, wherein the commutator segments (6) comprise a first commutator segment (8) and a second commutator segment (9), the first commutator segment (8) is spliced with the second commutator segment (9), a bending angle (7) is arranged at one end of the first commutator segment (8), a mounting block (12) is arranged at one end of the second commutator segment (9), and a clamping rod (11) is arranged on the mounting block (12).

4. A long-life commutator as claimed in claim 3, characterized in that the surface of the rotary knob (4) is provided with anti-slip threads.

5. A long-life commutator as claimed in claim 4, characterized in that the surfaces of the spring (15) and the limit bolt (3) are coated with lubricating oil and anti-corrosive paint.

6. A long-life commutator according to claim 3, wherein the inner side of the mounting groove is provided with a sliding groove, and the two sides of the first commutator segment (8) and the second commutator segment (9) are provided with sliding bars to connect with the sliding groove.

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