CN219393970U

CN219393970U - Hook-type commutator

Info

Publication number: CN219393970U
Application number: CN202320624424.XU
Authority: CN
Inventors: 宋泽明
Original assignee: Ruian Chengde Electric Appliance Co ltd
Current assignee: Ruian Chengde Electric Appliance Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-07-21
Anticipated expiration: 2033-03-27

Abstract

The utility model discloses a hook-type commutator which comprises a bakelite shell, a photo replacing piece and a hook body, wherein reinforcing structures are arranged on two sides of the inside of the bakelite shell, a lining is fixed in the bakelite shell, the photo replacing piece is inserted into the outside of the bakelite shell, the assembling and disassembling structure comprises a fixing plate, an installing bolt, a connecting seat, an installing hole groove and a slot, the slots are formed in the bakelite shell, and the connecting seat is arranged in the slot. According to the utility model, the mounting bolts are rotated to leave the inside of the mounting hole slots, the fixing plates are pulled to enable the connecting seats to drive the mica insulation plates to leave between the two groups of photo-exchanging sheets, and the mica insulation plates are disassembled and exchanged, so that the convenient maintenance function of the device is realized, the mica insulation plates are convenient to assemble and disassemble, workers can conveniently replace damaged mica insulation plates, the time consumed by the maintenance device is reduced, and the convenience of the device is enhanced.

Description

Hook-type commutator

Technical Field

The utility model relates to the technical field of commutators, in particular to a hook-type commutator.

Background

The hook-type commutator is a key component for driving the motor, the technical performance index and the product quality of the commutator directly affect the overall performance of the motor, and the commutator consists of a plastic shell, commutating plates, mica plate insulation and a metal bushing;

chinese patent grant publication number CN211017681U, publication day 2020, 07, 14 days, discloses a hook-type commutator, by integrative pressure injection molding bakelite powder base member and the switching-over copper sheet of circumference arrangement of making at the excircle of bakelite powder base member constitute, carry out the piece insulation through the insulating groove between the adjacent switching-over copper sheet, the top of switching-over copper sheet is equipped with bonding wire crotch, its characterized in that: the insulating groove is filled with bakelite powder near the top position and is not penetrated up and down, the top end face of the bakelite powder substrate is provided with upward conical protrusions, and the conical surfaces of the conical protrusions are uneven. According to the utility model, when the commutator is subjected to insulation treatment after welding wires, insulating paint is prevented from flowing into the insulating groove and can be firmly frozen on the top end surface of the commutator, so that the technical problems that the insulating paint falls off and is accumulated on the surface of the carbon brush when the commutator works are solved;

the prior technical proposal has the following defects: when the device is used, the defect that maintenance is inconvenient exists, after the motor is used for a long time, the motor carbon brush is worn and torn and scraps are generated to be attached to the surface of the mica insulation sheet, so that the mica insulation sheet is easy to break down and damage by current, the motor is short-circuited, the hook-type commutator is required to be maintained, at present, when the mica insulation sheet of the hook-type commutator is maintained, the mica insulation sheet between the photo replacement is polished and removed by an electric cutter and replaced again, the polishing process of the mica insulation sheet is long in time consumption and easy to generate smoke dust, and the maintenance efficiency of the device is affected.

Disclosure of Invention

First, the technical problem to be solved

The present utility model is directed to a hook-type commutator for solving the above-mentioned problems.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a hook-type commutator, includes the bakelite casing, trades photograph and coupler body, the inside both sides of bakelite casing all are provided with reinforced structure, the inside of bakelite casing is fixed with the inside lining, the outside of bakelite casing all is inserted and is equipped with trades the photograph, the top of trading the photograph is fixed with the coupler body, the both sides of trading the photograph all are provided with mica insulating sheet, the bottom of mica insulating sheet is provided with loading and unloading structure, loading and unloading structure includes fixed plate, mounting bolt, connecting seat, mounting hole groove and slot, the inside at the bakelite casing is all seted up to the slot, the inside of slot is provided with the connecting seat.

Preferably, a fixing plate is fixed on one side of the connecting seat, mounting bolts are inserted into two sides of the inside of the fixing plate, and mounting hole grooves are formed in two sides of the slot. The fixing plate is pulled to enable the connecting seat to drive the mica insulation sheet to leave between the two groups of photo exchange sheets by rotating the inside of the mounting hole groove, and the mica insulation sheet is detached for exchange.

Preferably, a sliding structure is formed between the connecting seat and the slot, and the mounting hole slots are symmetrically distributed on the vertical center of the slot.

Preferably, the outer side wall of the mounting bolt is provided with external threads, and the inside of the mounting hole groove is provided with internal threads matched with the external threads.

Preferably, the reinforcing structure comprises a rubber sleeve, fixing bolts and screw shells, wherein the screw shells are fixed in the two sides of the bakelite shell, the fixing bolts are inserted into the screw shells, and the rubber sleeve is arranged on one side of each fixing bolt. Through rotating fixing bolt, make fixing bolt hug closely at the outer wall of motor main shaft through the shell screw, increase the frictional force between bakelite casing and the motor main shaft, make the bakelite casing fixed more firm.

Preferably, the inner wall of the screw shell is provided with an internal thread, the outer wall of the fixing bolt is provided with an external thread, and the screw shell and the fixing bolt form a rotating structure through the engagement of the threads.

(III) beneficial effects

Compared with the prior art, the utility model has the beneficial effects that: the hook-type commutator has reasonable structure and has the following advantages:

(1) The mounting bolts are rotated to leave the inside of the mounting hole grooves, the fixing plates are pulled to enable the connecting seats to drive the mica insulation plates to leave between the two groups of photo-exchanging sheets, and the mica insulation plates are detached and replaced, so that the convenient maintenance function of the device is realized, the mica insulation plates are convenient to assemble and disassemble, workers are convenient to replace damaged mica insulation plates, the time consumed by a maintenance device is reduced, and the convenience of the device is enhanced;

(2) Through rotating fixing bolt, make fixing bolt hug closely the outer wall at the motor spindle through the spiral shell, increase the frictional force between bakelite casing and the motor spindle, make bakelite casing fixed more firm, realized the position reinforcement function of this device from this, be convenient for consolidate between the motor spindle of bakelite casing, prevent that the device from sliding, strengthened the steadiness of this device.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is an enlarged partial cross-sectional view of the structure of FIG. 1A according to the present utility model;

fig. 4 is a schematic view of a three-dimensional cross-sectional structure of the loading and unloading structure of the present utility model.

Reference numerals in the drawings illustrate: 1. an bakelite shell; 2. a reinforcing structure; 201. a rubber sleeve; 202. a fixing bolt; 203. a screw shell; 3. changing the photo; 4. a hook body; 5. a lining; 6. a loading and unloading structure; 601. a fixing plate; 602. installing a bolt; 603. a connecting seat; 604. a mounting hole groove; 605. a slot; 7. mica insulation sheet.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-4, the hook-type commutator provided by the utility model comprises a bakelite shell 1, a photo 3 and a hook body 4, wherein reinforcing structures 2 are arranged on two sides of the inside of the bakelite shell 1, a lining 5 is fixed on two sides of the inside of the bakelite shell 1, the photo 3 is inserted on the outer side of the bakelite shell 1, the hook body 4 is fixed on the top end of the photo 3, mica insulation plates 7 are arranged on two sides of the photo 3, a loading and unloading structure 6 is arranged at the bottom end of the mica insulation plates 7, the loading and unloading structure 6 comprises a fixing plate 601, a mounting bolt 602, a connecting seat 603, a mounting hole groove 604 and a slot 605, the slot 605 is arranged in the bakelite shell 1, a connecting seat 603 is arranged in the slot 605, a fixing plate 601 is fixed on one side of the connecting seat 603, mounting bolts 602 are inserted on two sides of the inside of the fixing plate 601, mounting hole grooves 604 are symmetrically distributed on the vertical center of the slot 605, external threads are arranged on the outer side wall of the mounting bolt 602, and the internal threads of the mounting hole 604 are matched with the internal threads of the external threads.

The working principle of the hook-type commutator based on the first embodiment is as follows: two adjacent groups of photo-changing pieces 3 are blocked by the mica insulation plates 7, after the mica insulation plates 7 burn, the mounting bolts 602 are separated from the inside of the mounting hole grooves 604 by rotating the mounting bolts 602, and then the fixing plate 601 is transversely pulled, so that the fixing plate 601 drives the connecting seat 603 to slide in the inside of the slot 605. Meanwhile, the connecting seat 603 drives the mica insulation plates 7 to leave between the two groups of photo-exchanging pieces 3, and the mica insulation plates 7 are detached for replacement.

Example two

The embodiment comprises the following steps: the reinforcing structure 2 comprises a rubber sleeve 201, fixing bolts 202 and screw shells 203, wherein the screw shells 203 are fixed in the two sides of the bakelite shell 1, the fixing bolts 202 are inserted into the screw shells 203, one side of each fixing bolt 202 is provided with the rubber sleeve 201, the inner wall of each screw shell 203 is provided with internal threads, the outer wall of each fixing bolt 202 is provided with external threads, and the screw shells 203 and the fixing bolts 202 form a rotating structure through the engagement of the threads.

In this embodiment, after the device is installed on the outer side of the motor spindle, the fixing bolt 202 is rotated to enable the fixing bolt 202 to move towards the motor spindle through the threads inside the screw shell 203, and then the fixing bolt 202 is tightly attached to the outer wall of the motor spindle, so that the friction between the bakelite shell 1 and the motor spindle is increased, and the bakelite shell 1 is fixed more firmly and is not easy to slide.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a hook-type commutator, includes bakelite casing (1), trades photo (3) and hook body (4), its characterized in that: reinforcement structure (2) are all provided with in the inside both sides of bakelite casing (1), the inside of bakelite casing (1) is fixed with inside lining (5), the outside of bakelite casing (1) is all inserted and is equipped with trades photo (3), the top of trading photo (3) is fixed with coupler body (4), the both sides of trading photo (3) all are provided with mica insulating sheet (7), the bottom of mica insulating sheet (7) is provided with loading and unloading structure (6), loading and unloading structure (6) are including fixed plate (601), mounting bolt (602), connecting seat (603), mounting hole groove (604) and slot (605), the inside at bakelite casing (1) is all seted up in slot (605), the inside of slot (605) is provided with connecting seat (603).

2. A hook-type commutator as defined in claim 1, wherein: one side of connecting seat (603) is fixed with fixed plate (601), both sides inside fixed plate (601) all are inserted and are equipped with mounting bolt (602), both sides of slot (605) are provided with mounting hole groove (604).

3. A hook-type commutator as defined in claim 1, wherein: a sliding structure is formed between the connecting seat (603) and the slot (605), and the mounting hole slots (604) are symmetrically distributed on the vertical center of the slot (605).

4. A hook-type commutator as defined in claim 1, wherein: external threads are arranged on the outer side wall of the mounting bolt (602), and internal threads matched with the external threads are arranged inside the mounting hole groove (604).

5. A hook-type commutator as defined in claim 1, wherein: the reinforcing structure (2) comprises a rubber sleeve (201), fixing bolts (202) and screw shells (203), wherein the screw shells (203) are fixed inside two sides of the bakelite shell (1), the fixing bolts (202) are inserted into the screw shells (203), and the rubber sleeve (201) is arranged on one side of each fixing bolt (202).

6. A hook-type commutator as defined in claim 5, wherein: an inner thread is arranged on the inner wall of the screw shell (203), an outer thread is arranged on the outer wall of the fixing bolt (202), and the screw shell (203) and the fixing bolt (202) form a rotating structure through engagement of the threads.