CN218386979U

CN218386979U - Permanent magnetism direct current torque motor stator core internally mounted structure

Info

Publication number: CN218386979U
Application number: CN202122930522.XU
Authority: CN
Inventors: 彭声峻; 邹惠斌
Original assignee: Chengdu Precision Motor Co ltd
Current assignee: Chengdu Precision Motor Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2023-01-24
Anticipated expiration: 2031-11-26

Abstract

The utility model provides a permanent magnetism direct current torque motor stator core internally mounted structure. Permanent magnetism direct current torque motor stator core internally mounted structure includes: a stator core disposed within the housing; the plurality of grooves are formed in the stator core; the convex strips are fixedly arranged on the inner wall of the shell and are clamped with the corresponding grooves; the limiting grooves are formed in the inner walls of the grooves; the through grooves are formed in the raised lines; and the top grooves are all arranged on the shell. The utility model provides a permanent magnetism direct current torque motor stator core internally mounted structure has can prevent in the at utmost that dislocation and front and back displacement from appearing in stator core, and easy operation, advantage rational in infrastructure.

Description

Permanent magnet direct current torque motor stator core internal installation structure

Technical Field

The utility model relates to the technical field of motors, especially, relate to a permanent magnetism direct current torque motor stator core internally mounted structure.

Background

The permanent magnet type DC torque motor is a low-speed DC servo motor, has the characteristics of large locked-rotor torque, low no-load rotating speed, capability of directly driving a load without any speed reducer, strong overload capacity and the like, can generate enough torque without damage, and is widely applied to high-precision transmission systems such as driving of various radar antennas, photoelectric tracking and the like and driving devices of general instruments and meters.

However, during the stator core installation in traditional permanent magnet type direct current torque motor, form the block between the draw-in groove that card strip on the casing and stator core itself have and carry out the erection joint more, this kind of mounting means is on the one hand probably because of the draw-in groove with block between the strip clearance too big, lead to stator core the not hard up condition to appear, on the other hand, if the both sides baffle installation of restriction stator core back-and-forth movement is improper, lead to the space too big, just can be in the use, because of the condition of long-time vibrations cause stator core displacement around, thereby influence permanent magnet type direct current torque motor's normal use.

Therefore, it is necessary to provide an internal installation structure of a stator core of a permanent magnet dc torque motor to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can prevent to the at utmost that stator core from appearing dislocation and displacement around, and easy operation, permanent magnetism direct current torque motor stator core internally mounted structure rational in infrastructure.

In order to solve the technical problem, the utility model provides a permanent magnetism direct current torque motor stator core internally mounted structure, include: a stator core disposed within the housing; the plurality of grooves are formed in the stator core; the convex strips are fixedly arranged on the inner wall of the shell and are clamped with the corresponding grooves; the limiting grooves are formed in the inner walls of the grooves; the through grooves are formed in the raised lines; the top grooves are all formed in the machine shell; the plurality of surface grooves are formed in the shell and are respectively communicated with the plurality of top grooves; a plurality of restricting mechanisms respectively provided in the plurality of top grooves; limiting mechanism includes horizontal pole, two draw the fishplate bar, two restriction piece and two reset springs one, horizontal pole fixed mounting be in the overhead gage, two draw the equal slidable mounting of fishplate bar on the horizontal pole, two draw the bottom of fishplate bar all extend to lead to the inslot and with the bottom inner wall swing joint in overhead gage, two restriction piece respectively fixed mounting be two draw one side that the fishplate bar was kept away from each other, two one side that the restriction piece was kept away from each other all extends to corresponding in the restriction inslot, two reset springs one all overlap and establish on the horizontal pole, two one end that reset springs one is close to each other all with corresponding draw fishplate bar fixed connection, two one end that reset springs one was kept away from each other respectively with the both sides inner wall fixed connection in overhead gage.

Preferably, a plurality of the surface grooves are fixedly provided with cover plates through bolts.

Preferably, a communicating groove is formed in the inner wall of the bottom of the top groove, two reinforcing rods are fixedly mounted in the communicating groove, and the reinforcing rods penetrate through the two pull plates and are connected with the two pull plates in a sliding mode.

Preferably, two the equal fixed mounting in one side that the fishplate bar is close to each other has elasticity card strip, two elasticity card strip dislocation distribution, and two equal fixed mounting has the wedge on the elasticity card strip, two wedge looks adaptation.

Preferably, the last lubricating oil cavity of having seted up of stator core, a plurality of oil permeability holes one have been seted up on stator core's the outer lane, and are a plurality of oil permeability holes one all with lubricating oil cavity is linked together, a plurality of oil permeability holes two have been seted up on lubricating oil cavity's the inner wall, and are a plurality of oil permeability holes two are respectively with a plurality of the recess is linked together, two oil filler points have been seted up on the stator core, the oil filler point with lubricating oil cavity is linked together, there is the fixed plate through bolt fixed mounting on the casing, slidable mounting has two push rods, two on the fixed plate the bottom of push rod all extends to the correspondence in the oil filler point and with corresponding the inner wall of oil filler point contacts, the push rod with casing sliding connection.

Preferably, the top ends of the two push rods are fixedly provided with the same pressing plate, two reset springs are sleeved on the two push rods, the bottom ends of the reset springs are fixedly connected with the fixing plate, and the top ends of the reset springs are fixedly connected with the pressing plate.

Preferably, two sliding holes are formed in the machine shell, the two sliding holes are respectively communicated with the two oil injection holes, and the two push rods penetrate through the corresponding sliding holes.

Compared with the prior art, the utility model provides a permanent magnetism direct current torque motor stator core internally mounted structure has following beneficial effect:

the utility model provides a permanent magnetism direct current torque motor stator core internally mounted structure, through all setting up the restriction groove on every recess inner wall, and all set up two restriction pieces in every sand grip, alright through the cooperation between the two with the reliable restriction of stator core in the casing, and be the ascending restriction of direction of rotation between recess and the sand grip, restriction piece and restriction groove between be the ascending restriction of fore-and-aft direction, and then make stator core's fixed more firm, effectively prevent its condition that appears dislocation or displacement around or, the normal operating of motor has been guaranteed.

Drawings

Fig. 1 is a schematic front view of a first embodiment of an internal mounting structure of a stator core of a permanent magnet direct current torque motor according to the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic front view of a second embodiment of the internal mounting structure of the stator core of the permanent magnet dc torque motor according to the present invention;

fig. 4 is an enlarged schematic view of a portion B shown in fig. 3.

Reference numbers in the figures: 1. a housing; 2. a stator core; 3. a groove; 4. a convex strip; 5. a limiting groove; 6. a through groove; 7. a top groove; 8. a surface groove; 9. a cross bar; 10. a draw-connection plate; 11. a limiting block; 12. a first reset spring; 13. a cover plate; 14. a lubricating oil cavity; 15. a first oil seepage hole; 16. a second oil seepage hole; 17. an oil filler hole; 18. a fixing plate; 19. a push rod; 20. and a second reset spring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

First embodiment

Referring to fig. 1-2, in a first embodiment of the present invention, an internal mounting structure of a stator core of a permanent magnet dc torque motor includes: a stator core 2 disposed in the casing 1; the plurality of grooves 3 are formed in the stator core 2; the plurality of convex strips 4 are fixedly arranged on the inner wall of the casing 1, the plurality of convex strips 4 are clamped with the corresponding grooves 3, and the plurality of grooves 3 and the plurality of convex strips 4 are distributed in an annular array manner, so that stress points are uniformly distributed, and the splicing stability is improved; the plurality of limiting grooves 5 are formed in the inner walls of the plurality of grooves 3, the limiting grooves 5 can be clamped with the limiting blocks 11, so that the protruding strips 4 can be limited in the front-back direction, and the stator core 2 cannot be dislocated or displaced in the front-back direction; a plurality of through grooves 6, wherein the through grooves 6 are all arranged on the convex strips 4; the top grooves 7 are formed in the machine shell 1; the plurality of face grooves 8 are formed in the machine shell 1, the plurality of face grooves 8 are communicated with the plurality of top grooves 7 respectively, and the plurality of top grooves 7 and the plurality of face grooves 8 are distributed in an annular array and can be matched with the chromium plating raised lines 4 in position; a plurality of restricting mechanisms provided in the plurality of top grooves 7, respectively; limiting mechanism includes horizontal pole 9, two draw board 10, two restriction piece 11 and two reset spring one 12, horizontal pole 9 fixed mounting be in top groove 7, horizontal pole 9 can be for drawing board 10 to provide fixed horizontal sliding position, two draw board 10 equal slidable mounting be in on the horizontal pole 9, draw the folded plate that the top of board 10 is certain angle to can provide the power point for people, convenient finger pinch, two draw the bottom of board 10 all extend to in leading to the inslot 6 and with the bottom inner wall swing joint of top groove 7, two restriction piece 11 respectively fixed mounting be two draw board 10 one side of keeping away from each other, two one side that restriction piece 11 kept away from each other all extends to corresponding in the restriction groove 5, two reset spring one 12 all overlap and be established on horizontal pole 9, two one end that reset spring one 12 is close to each other all with correspond draw board 10 fixed connection, two reset spring one 12 one end that keeps away from each other respectively with the both sides inner wall fixed connection of top groove 7, reset spring one 12 can provide one for draw board 10 and correspond the pulling force and connect the original pulling force state that the board 10 can kick-back to the rebound to the original state, and the wedge can be returned to the pulling force state.

It is a plurality of all there is apron 13 through bolt fixed mounting in the face groove 8, and spare part in the apical trough 7 can be protected to apron 13, when not using, can form the protection, improves spare part's life.

The bottom inner wall of the top groove 7 is provided with a communicating groove, two reinforcing rods are fixedly mounted in the communicating groove, the reinforcing rods penetrate through the two pulling connection plates 10 and are in sliding connection with the two pulling connection plates 10, the two reinforcing rods can provide a limit for the movement track of the pulling connection plates 10, and the pulling connection plates 10 can only move stably and horizontally under the matching of the transverse rods 9.

Two the equal fixed mounting in one side that draw bail 10 is close to each other has elasticity card strip, two elasticity card strip dislocation distribution, and two equal fixed mounting has the wedge on the elasticity card strip, two wedge looks adaptation is through the elasticity of elasticity card strip self to utilize the card of two wedges to hold, can be after leading to groove 6 with limiting block 11 retraction, inject its temporary in leading to groove 6, make things convenient for people to vacate the hand and continue to do next flow.

The utility model provides a permanent magnetism direct current torque motor stator core internally mounted structure's theory of operation as follows:

before the stator core 2 is installed, the stator core 2 and the machine shell 1 are in a separated state, and the limiting block 11 is positioned inside the machine shell 1;

when the stator core 2 needs to be installed in the machine shell 1, the cover plates 13 are opened firstly, then the two pulling plates 10 in one of the top grooves 7 are pinched firstly, and the two pulling plates 10 are pressed towards the mutually approaching direction, the two pulling plates 10 drive the corresponding limiting blocks 11 to move, in the moving process, the wedge blocks on the elastic clamping strips on the two pulling plates 10 are mutually extruded, finally, when the limiting blocks 11 are completely retracted into the through grooves 6, the two wedge blocks form staggered clamping, then the pulling plates 10 can be loosened, so that the limiting blocks 11 temporarily stay in the through grooves 6, at the moment, the corresponding two reset springs I12 are in a stretching state, then hands are released, and the same mode is adopted, press two fishplate bars 10 in other overhead tanks 7 in proper order, finally all put into corresponding logical groove 6 with whole restriction piece 11, insert stator core 2 in casing 1 afterwards, and make a plurality of recesses 3 and the block of pegging graft of sand grip 4 that corresponds, insert the back that targets in place, the elasticity card strip in a plurality of overhead tanks 7 of pulling in proper order, make two wedge separation that correspond, then under the resilience pulling force of reset spring 12, two fishplate bars 10 keep away from each other, make two restriction pieces 11 that correspond do the motion of keeping away from each other, thereby make a plurality of restriction pieces 11 all insert in the restriction groove 5 that corresponds, like this alright with the reliable restriction of stator core 2 in casing 1, the back of finishing the installation, close upper cover plate 13 can.

this device is through all setting up restriction groove 5 on 3 inner walls of every recess, and all set up two restriction piece 11 in every sand grip 4, alright through the cooperation between the two with the reliable restriction of stator core 2 in casing 1, and be the ascending restriction of direction of rotation between recess 3 and the sand grip 4, restriction piece 11 and restriction groove 5 between be the ascending restriction of fore-and-aft direction, and then make stator core 2 fixed more firm, effectively prevent its condition of dislocation or fore-and-aft displacement from appearing, the normal operating of motor has been guaranteed.

The second embodiment:

based on the permanent magnet direct current torque motor stator core internally mounting structure that the first embodiment of this application provided, the second embodiment of this application provides another kind of permanent magnet direct current torque motor stator core internally mounting structure. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.

Referring to fig. 3-4 in combination, the permanent magnet direct current torque motor stator core internal mounting structure further includes a lubricating oil chamber 14, the lubricating oil chamber 14 is provided on the stator core 2, a plurality of first oil-penetration holes 15 are provided on an outer ring of the stator core 2, the first oil-penetration holes 15 are all communicated with the lubricating oil chamber 14, the first oil-penetration holes 15 are communicated with the lubricating oil chamber 14, so that lubricating oil can smoothly penetrate into a gap between the stator core 2 and the housing 1, a plurality of second oil-penetration holes 16 are provided on an inner wall of the lubricating oil chamber 14, the plurality of second oil-penetration holes 16 are respectively communicated with the plurality of grooves 3, by using the second oil-penetration holes 16, the lubricating oil can smoothly penetrate between the grooves 3 and the convex strips 4, two oil-penetration holes 17 are provided on the stator core 2, the oil-penetration holes 17 are communicated with the lubricating oil chamber 14, a fixing plate 18 is fixedly installed on the housing 1 through bolts, two push rods 19 are slidably installed on the fixing plate 18, bottom ends of the two push rods 19 extend into the corresponding oil-penetration holes 17 and contact with corresponding inner walls of the oil-penetration holes 17, the push rods 19 are connected with the housing 1, and the inner walls of the housing 1, so that the push rods 19 can be pushed by a needle tube in a manner similar to push a needle tube.

Two the top fixed mounting of push rod 19 has same clamp plate, two all the cover is equipped with two reset springs 20 on the push rod 19, two reset springs 20 the bottom with fixed plate 18 fixed connection, two reset springs 20 the top with clamp plate fixed connection, two reset springs 20 can provide a resilience pulling force for push rod 19 for under the clamp plate does not have the exogenic action, push rod 19 can return to the normal position automatically, makes things convenient for people to use.

Two sliding holes are formed in the machine shell 1 and are respectively communicated with the two oil injection holes 17, the push rods 19 penetrate through the corresponding sliding holes, and lubricating oil can be smoothly injected into the lubricating oil cavity 14 while the sliding holes are convenient for the push rods 19 to slide.

In this embodiment, in the initial state, the fixed plate 18 is separated from the housing 1, and the push rod 19 is not located in the oil hole 17;

when the device is used, in order to prevent the stator core 2 and the casing 1 from being difficult to separate due to jamming caused by long-time use, a certain amount of lubricating oil is added into the lubricating oil cavity 14 through the lubricating holes and the oil injection holes 17, then the fixing plate 18 is fixed on the casing 1, the two push rods 19 are inserted into the two oil injection holes 17, and then the pressing plate is pressed downwards, so that the two push rods 19 can be driven to descend, air pressure is formed in the lubricating oil cavity 14, the lubricating oil in the lubricating oil cavity starts to seep out through the first oil seepage holes 15 and the second oil seepage holes 16 at a higher speed, in the pressing process, the device can be rotated, oil seepage work is carried out from all aspects, the lubricating oil can seep into a gap between the stator core 2 and the casing 1 and a gap between the groove 3 and the convex strip 4 more completely, and therefore the clamping lubrication degree between the stator core 2 and the casing 1 can be ensured, and the separation between the stator core 2 and the casing 1 can be carried out smoothly and easily.

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

Claims

1. Permanent magnetism direct current torque motor stator core internally mounted structure, its characterized in that includes:

a stator core disposed within the case;

the plurality of grooves are formed in the stator core;

the convex strips are fixedly arranged on the inner wall of the shell and are clamped with the corresponding grooves;

the limiting grooves are formed in the inner walls of the grooves;

the through grooves are formed in the raised lines;

the top grooves are all formed in the machine shell;

the plurality of surface grooves are formed in the shell and are respectively communicated with the plurality of top grooves;

a plurality of restricting mechanisms respectively provided in the plurality of top grooves;

limiting mechanism includes horizontal pole, two draw the fishplate bar, two restriction piece and two reset springs one, horizontal pole fixed mounting be in the overhead gage, two draw the equal slidable mounting of fishplate bar on the horizontal pole, two draw the bottom of fishplate bar all extend to lead to the inslot and with the bottom inner wall swing joint in overhead gage, two restriction piece respectively fixed mounting be two draw one side that the fishplate bar was kept away from each other, two one side that the restriction piece was kept away from each other all extends to corresponding in the restriction inslot, two reset springs one all overlap and establish on the horizontal pole, two one end that reset springs one is close to each other all with corresponding draw fishplate bar fixed connection, two one end that reset springs one was kept away from each other respectively with the both sides inner wall fixed connection in overhead gage.

2. The interior mounting structure of a stator core of a permanent magnet direct current torque motor according to claim 1, wherein a plurality of the face slots are fixedly mounted with cover plates by bolts.

3. The interior installation structure of the stator core of the permanent magnet direct current torque motor according to claim 1, wherein a communication groove is formed in the inner wall of the bottom of the top groove, two reinforcing rods are fixedly installed in the communication groove, and the reinforcing rods penetrate through the two pull connection plates and are slidably connected with the two pull connection plates.

4. The interior mounting structure of the stator core of the permanent magnet direct current torque motor according to claim 1, wherein elastic clamping strips are fixedly mounted on the two sides, close to each other, of the two pulling plates, the two elastic clamping strips are distributed in a staggered manner, wedge blocks are fixedly mounted on the two elastic clamping strips, and the two wedge blocks are matched.

5. The internal mounting structure of the stator core of the permanent magnet direct current torque motor according to claim 1, wherein a lubricating oil cavity is formed in the stator core, a plurality of first oil seepage holes are formed in an outer ring of the stator core and are communicated with the lubricating oil cavity, a plurality of second oil seepage holes are formed in an inner wall of the lubricating oil cavity and are respectively communicated with the plurality of grooves, two oil injection holes are formed in the stator core and are communicated with the lubricating oil cavity, a fixing plate is fixedly mounted on the housing through bolts, two push rods are slidably mounted on the fixing plate, bottom ends of the two push rods extend into the corresponding oil injection holes and are in contact with the corresponding inner walls of the oil injection holes, and the push rods are slidably connected with the housing.

6. The interior installation structure of the stator core of the permanent magnet direct current torque motor according to claim 5, wherein the same pressing plate is fixedly installed at the top ends of the two push rods, a second reset spring is sleeved on each of the two push rods, the bottom end of each second reset spring is fixedly connected with the corresponding fixing plate, and the top end of each second reset spring is fixedly connected with the corresponding pressing plate.

7. The interior installation structure of the stator core of the permanent magnet direct current torque motor according to claim 5, wherein the casing is provided with two sliding holes, the two sliding holes are respectively communicated with the two oil injection holes, and the two push rods penetrate through the corresponding sliding holes.