CN218160146U

CN218160146U - Spring operating mechanism based on permanent magnet type single-machine direct current motor

Info

Publication number: CN218160146U
Application number: CN202222715079.9U
Authority: CN
Inventors: 潘宝福; 林观日; 潘浩杰; 包晓燕
Original assignee: Yueqing Bangli Electric Co ltd
Current assignee: Yueqing Bangli Electric Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2022-12-27
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a spring operating mechanism based on permanent magnet type single-machine direct current motor, which comprises a frame body, a driving motor, an energy storage spring and a fixed shaft, wherein the frame body is respectively provided with a motor gear, a transmission gear and a main shaft gear in a rotating way through a first rotating shaft, a second rotating shaft and the main shaft; the fixed axle includes upper boom and lower beam, and the rotation groove has been seted up to the upper end of lower beam, and the lower extreme of upper boom rotates and sets up in rotating the groove to set up the ring channel on the upper boom, a plurality of first screws have been seted up along circumference to the lower beam side, and threaded connection has a spacing screw on the first screw, and the inner of spacing screw is equipped with the spacing convex part that stretches into the ring channel, and second spring mounting installs on the upper boom. The utility model discloses can not only promote energy storage spring's life, can improve the holistic stability of spring operating device moreover.

Description

Spring operating mechanism based on permanent magnet type single-machine direct current motor

Technical Field

The utility model relates to a circuit breaker technical field especially relates to a spring operating device based on permanent magnet type unit DC motor on the circuit breaker.

Background

The operating mechanism is located in the high-voltage circuit breaker cabinet, and generally, the operating mechanism comprises a motor operating mechanism, a starting operating mechanism, a hydraulic operating mechanism, a permanent magnet operating mechanism, a spring operating mechanism and the like.

The spring operating mechanism is a mechanical operating mechanism which takes a spring as an energy storage element. The energy storage of the energy storage spring is completed by the motor through a speed reducing device and is kept in an energy storage state through a locking system. When the switch is switched off, the lock catch is released by means of magnetic force, the energy storage spring releases energy, and the contact is moved through the mechanical transmission unit. Energy storage spring among prior art's spring operating device, its one end is connected with the swing arm that sets up on the main shaft, the other end is connected with the fixed axle that sets up on the support body, wherein, in order to make the structure more simple small and exquisite, energy storage spring and the one end that the fixed axle links to each other can not take place pivoted relatively the fixed axle usually, therefore, it rotates at the main shaft drive swing arm, make the flexible in-process of energy storage spring, energy storage spring is not whole to produce deformation along the extending direction of self central line, its one end that is close to the fixed axle can take place local distortion, after frequently moving, energy storage spring takes place the damage easily, influence the normal use of circuit breaker.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring operating mechanism based on permanent magnet type unit DC motor, the utility model discloses the deformation direction that can guarantee energy storage spring remains throughout at the central line extending direction of self, can not only promote energy storage spring's life, can improve the holistic stability of spring operating mechanism moreover, guarantees the normal use of circuit breaker.

In order to achieve the above object, the utility model provides a following technical scheme: the spring operating mechanism comprises a frame body, a driving motor, an energy storage spring and a fixed shaft, wherein a motor gear, a transmission gear and a main shaft gear are respectively installed on the frame body through a first rotating shaft, a second rotating shaft and a main shaft in a rotating mode, the driving motor is installed on the frame body, a motor shaft of the driving motor is connected with the first rotating shaft in a linkage mode, the first rotating shaft and the second rotating shaft are connected through a speed reducer, the other end of the main shaft is connected with a crank in a linkage mode, a pull rod is arranged on the crank, a first spring fixing part is installed on the pull rod in a rotating mode, the fixed shaft is installed on the frame body, a second spring fixing part is installed on the fixed shaft, and two ends of the energy storage spring are respectively connected to the first spring fixing part and the second spring fixing part; the fixed axle includes upper boom and lower beam, the lower beam is installed on the support body, the rotation groove has been seted up to the upper end of lower beam, the lower extreme of upper boom rotates the setting and is in rotate in the groove, and the ring channel has been seted up along circumference in the position that the upper boom is located to rotate the inslot, the lower beam side along circumference seted up a plurality ofly with rotate the first screw that the groove communicates mutually, threaded connection has stop screw on the first screw, stop screw's the inner is equipped with and stretches into the spacing convex part of ring channel, second spring mounting installs on the upper boom.

Through adopting above-mentioned technical scheme, the fixed axle components of a whole that can function independently sets up, the upper boom can rotate around the lower beam, set up in the spacing convex part of spacing screw the inner inserts the ring channel on the lower beam on promptly the upper boom, it is spacing to carry out the axial to the upper boom, make it can only circumferential direction, therefore, when the crank drives first spring mounting and rotates and impel the energy storage spring motion, the one end that the main shaft was kept away from to the energy storage spring can rotate with the upper boom together, thereby avoided the energy storage spring to take place local torsion, make the direction of deformation of energy storage spring remain the central line extending direction at self throughout, can not only promote the life of energy storage spring, and can improve the holistic stability of spring operating device, guarantee the normal use of circuit breaker.

The utility model discloses further set up to, the lower beam includes lower shaft part and last shaft part, lower shaft part installs on the support body, lower shaft part's upper end is equipped with the guide arm portion that the cross-section is regular quadrangle, go up the lower extreme of shaft part be equipped with guide arm portion complex guide hole, the second screw has still been seted up to the lateral part of going up shaft part, threaded connection has locking screw on the second screw, locking screw's the inner is supported tightly at guide arm portion side.

Through adopting above-mentioned technical scheme for the lower beam can realize axial length's fine setting, thereby keeps the height (the distance of relative support body) the same of spring both ends position, avoids producing fore-and-aft local atress, further promotes energy storage spring's life.

The utility model discloses further set up to, be equipped with a plurality of first jacks that are used for energy storage spring tip male on the first spring mounting, be equipped with a plurality of second jacks that are used for energy storage spring tip male on the second spring mounting.

Through adopting above-mentioned technical scheme, the dismouting operation of the energy storage spring of being convenient for.

The utility model discloses further set up to, be equipped with the regulation pole on the second spring mounting, the bilateral symmetry of adjusting the pole is provided with spacing incision, on go up the pole seted up with adjust pole matched with regulation hole, be equipped with the screw thread section on the regulation pole, threaded connection has adjusting nut and lock nut in proper order in the screw thread section, lock nut offsets tightly with adjusting nut, and adjusting nut supports the one side of keeping away from energy storage spring at the last pole simultaneously.

Through adopting above-mentioned technical scheme, when realizing being connected between second spring mounting and the upper boom, can realize the regulation of energy storage spring pretightning force.

The utility model discloses further set up to, the support incision that is used for adjusting nut to support to lean on is offered to the upper boom side.

Through adopting above-mentioned technical scheme, be convenient for adjusting nut's support tightly fixed.

The utility model discloses further set up to, the linkage hole has been seted up on the crank, be equipped with the linkage convex part on the inner wall in linkage hole, during the main shaft stretched into the linkage hole, the lateral part of main shaft be equipped with the linkage spout that the linkage hole agrees with mutually, still be equipped with on the main shaft and support the step, the position joint that the main shaft corresponds the crank top has and is used for supporting the jump ring on supporting the step with the crank.

By adopting the technical scheme, the circumferential linkage and the axial limiting of the crank and the main shaft can be realized.

The utility model discloses further set up to, the upper end of pull rod is equipped with the support gasket that extends to the periphery, be equipped with the center pin that runs through the support gasket on the pull rod, center pin upper end threaded connection has the locking screw, it is equipped with spacing gasket to press from both sides between the screw head of locking screw and the center pin, first spring mounting cover is established and is corresponded the position between support gasket and the spacing gasket at the center pin to there are a plurality of roll bars along circumference evenly distributed between center pin and the first spring mounting.

Through adopting above-mentioned technical scheme, can realize that first spring mounting rotates and installs on the pull rod, and frictional force between the two is minimum, has reduced friction loss, and energy storage spring's flexible is more stable simultaneously.

Drawings

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

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

fig. 3 is a schematic view of the mounting structure of the energy storage spring of the present invention;

fig. 4 is a schematic structural view of the fixing shaft of the present invention;

fig. 5 is a schematic view of an installation structure of a second spring fixing member according to the present invention;

fig. 6 is a schematic view of the connection structure of the main shaft, the crank and the first spring fixing member according to the present invention.

In the figure: 1. a frame body; 2. a drive motor; 3. an energy storage spring; 4. a fixed shaft; 5. a first rotating shaft; 6. a second rotating shaft; 7. a main shaft; 8. a motor gear; 9. a transmission gear; 10. a main shaft gear; 11. a crank; 12. a pull rod; 13. a first spring mount; 14. a second spring mount; 15. a rod is arranged; 16. a lower rod; 17. a rotating groove; 18. an annular groove; 19. a first screw hole; 20. a limiting screw; 21. a limiting convex part; 22. a lower shaft section; 23. an upper shaft section; 24. a guide rod part; 25. a guide hole; 26. a second screw hole; 27. locking screws; 28. a first jack; 29. a second jack; 30. adjusting a rod; 31. limiting the notch; 32. an adjustment hole; 33. a threaded segment; 34. adjusting the nut; 35. locking the nut; 36. a support cut; 37. a linkage hole; 38. a linkage projection; 39. a linkage chute; 40. supporting a step; 41. a clamp spring; 42. a support pad; 43. a central shaft; 44. a locking screw; 45. a limiting gasket; 46. a roll bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 efforts all belong to the protection scope of the present invention.

The embodiment is as follows: the spring operating mechanism based on the permanent magnet type single-machine direct-current motor comprises a frame body 1, a driving motor 2, an energy storage spring 3 and a fixed shaft 4, wherein the frame body 1 is formed by assembling two panels through connecting rods, a motor gear 8, a transmission gear 9 and a main shaft 7 gear are respectively installed on the frame body 1 in a rotating mode through a first rotating shaft 5, a second rotating shaft 6 and a main shaft 7, the driving motor 2 is installed on the frame body 1, a motor shaft of the driving motor 2 is connected with the first rotating shaft 5 in a linkage mode, the other end of the main shaft 7 is connected with a crank 11 in a linkage mode, a pull rod 12 is arranged on the crank 11, a first spring fixing piece 13 is installed on the pull rod 12 in a rotating mode, the fixed shaft 4 is installed on the frame body 1, a second spring fixing piece 14 is installed on the fixed shaft 4, and two ends of the energy storage spring 3 are respectively connected to the first spring fixing piece 13 and the second spring 14; the fixed shaft 4 comprises an upper rod 15 and a lower rod 16, the lower rod 16 is installed on the frame body 1, a rotating groove 17 is formed in the upper end of the lower rod 16, the lower end of the upper rod 15 is rotatably arranged in the rotating groove 17, an annular groove 18 is formed in the position, located in the rotating groove 17, of the upper rod 15 along the circumferential direction, a plurality of first screw holes 19 communicated with the rotating groove 17 are formed in the lateral portion of the lower rod 16 along the circumferential direction, a limit screw 20 is connected to the first screw holes 19 in a threaded mode, a limit convex portion 21 extending into the annular groove 18 is arranged at the inner end of the limit screw 20, and the second spring fixing piece 14 is installed on the upper rod 15. The fixed shaft 4 is arranged in a split mode, the upper rod 15 can rotate around the lower rod 16, namely, the limiting convex part 21 arranged at the inner end of the limiting screw 20 on the upper rod 15 is inserted into the annular groove 18 on the lower rod 16, the upper rod 15 is axially limited, and only circumferential rotation can be carried out on the upper rod, therefore, when the crank 11 drives the first spring fixing part 13 to rotate to enable the energy storage spring 3 to move, one end, far away from the main shaft 7, of the energy storage spring 3 can rotate together with the upper rod 15, so that the energy storage spring 3 is prevented from being locally twisted, the deformation direction of the energy storage spring 3 is always kept in the self central line extension direction, the service life of the energy storage spring 3 can be prolonged, the integral stability of a spring operating mechanism can be improved, and the normal use of the circuit breaker is guaranteed.

As shown in fig. 4, the lower rod 16 includes a lower shaft section 22 and an upper shaft section 23, the lower shaft section 22 is mounted on the frame body 1, a guide rod portion 24 with a square cross section is disposed at the upper end of the lower shaft section 22, a guide hole 25 matched with the guide rod portion 24 is disposed at the lower end of the upper shaft section 23, a second screw hole 26 is further disposed at the side of the upper shaft section, a locking screw 27 is connected to the second screw hole 26 in a threaded manner, and the inner end of the locking screw 27 abuts against the side surface of the guide rod portion 24, so that the upper shaft section 23 and the lower shaft section 22 do not move relatively. This design makes down pole 16 can realize the fine setting of axial length to keep the height (the distance of relative support body 1) the same of spring both ends position, avoid producing fore-and-aft local atress, further promote energy storage spring 3's life.

As shown in fig. 3, a plurality of first insertion holes 28 for inserting the ends of the energy storage springs 3 are formed in the first spring fixing member 13, and a plurality of second insertion holes 29 for inserting the ends of the energy storage springs 3 are formed in the second spring fixing member 14. This design is convenient for the dismouting operation of energy storage spring 3.

As shown in fig. 4 and 5, the second spring fixing member 14 is provided with an adjusting rod 30, the adjusting rod 30 and the second spring fixing member 14 are of an integrated structure, two side symmetry of the adjusting rod 30 is provided with limiting notches 31, the upper rod 15 is provided with an adjusting hole 32 matched with the adjusting rod 30, the adjusting rod 30 is provided with a thread section 33, the thread section 33 is sequentially connected with an adjusting nut 34 and a locking nut 35, the locking nut 35 abuts against the adjusting nut 34, and meanwhile the adjusting nut 34 abuts against one side, far away from the energy storage spring 3, of the upper rod 15. The connection between the second spring mount 14 and the upper rod 15 is realized, and simultaneously, the adjustment of the pretightening force of the energy storage spring 3 can be realized.

As shown in fig. 5, a supporting notch 36 for abutting against the adjusting nut 34 is opened at the side of the upper rod 15. The support notches 36 facilitate the tightening of the adjustment nut 34.

As shown in fig. 6, a linkage hole 37 has been opened on the crank 11, a linkage convex portion 38 is arranged on the inner wall of the linkage hole 37, the main shaft 7 extends into the linkage hole 37, a linkage sliding groove 39 matched with the linkage hole 37 is arranged on the side portion of the main shaft 7, a support step 40 is further arranged on the main shaft 7, a snap spring 41 for supporting the crank 11 on the support step 40 is clamped at a position above the main shaft 7 corresponding to the crank 11, and a clamping groove for clamping the snap spring 41 is arranged on the main shaft 7. The design can realize circumferential linkage and axial limit of the crank 11 and the main shaft 7.

As shown in fig. 6, the upper end of the pull rod 12 is provided with a supporting pad 42 extending to the periphery, the pull rod 12 is provided with a central shaft 43 penetrating through the supporting pad 42, the upper end of the central shaft 43 is connected with a locking screw 44 through a thread, a limiting pad 45 is clamped between a screw head of the locking screw 44 and the central shaft 43, the first spring fixing member 13 is sleeved at a position of the central shaft 43 corresponding to the supporting pad 42 and the limiting pad 45, and a plurality of rolling rods 46 are uniformly distributed between the central shaft 43 and the first spring fixing member 13 along the circumferential direction. This design can realize that first spring mounting 13 rotates and installs on pull rod 12, and frictional force between the two is minimum, has reduced friction loss, and energy storage spring 3's flexible is more stable simultaneously.

Claims

1. Spring operating device based on permanent magnet type single-machine direct current motor, including support body (1), driving motor (2), energy storage spring (3) and fixed axle (4), rotate respectively through first pivot (5), second pivot (6) and main shaft (7) on support body (1) and install motor gear (8), drive gear (9) and main shaft gear (10), driving motor (2) are installed on support body (1), and the motor shaft of driving motor (2) is connected with first pivot (5) linkage, the other end linkage of main shaft (7) is connected with crank (11), be equipped with pull rod (12) on crank (11), rotate on pull rod (12) and install first spring mounting (13), fixed axle (4) is installed on support body (1), installs second spring mounting (14) on fixed axle (4), the both ends of energy storage spring (3) are connected respectively on first spring mounting (13) and second spring mounting (14); the method is characterized in that: fixed axle (4) include upper boom (15) and lower beam (16), lower beam (16) are installed on support body (1), rotation groove (17) have been seted up to the upper end of lower beam (16), the lower extreme of upper boom (15) is rotated and is set up rotate in groove (17), and annular groove (18) have been seted up along circumference in upper boom (15) position in rotation groove (17), lower beam (16) lateral part along circumference seted up a plurality of with first screw (19) that rotation groove (17) are linked together, threaded connection has stop screw (20) on first screw (19), the inner of stop screw (20) is equipped with and stretches into spacing convex part (21) of annular groove (18), second spring mounting (14) are installed on upper boom (15).

2. The spring operating mechanism based on a permanent magnet type single direct current motor according to claim 1, characterized in that: lower beam (16) are including lower shaft part (22) and upper shaft part (23), install on support body (1) shaft part (22) down, the upper end of lower shaft part (22) is equipped with guide arm portion (24) that the cross-section is the quadrangle, the lower extreme of going up shaft part (23) be equipped with guide arm portion (24) matched with guide hole (25), second screw (26) have still been seted up to the lateral part of going up shaft part (23), threaded connection has locking screw (27) on second screw (26), the inner of locking screw (27) supports tightly in guide arm portion (24) side.

3. The spring operating mechanism based on a permanent magnet type single direct current motor according to claim 1, characterized in that: the energy storage spring fixing device is characterized in that a plurality of first insertion holes (28) used for inserting the end parts of the energy storage springs (3) are formed in the first spring fixing part (13), and a plurality of second insertion holes (29) used for inserting the end parts of the energy storage springs (3) are formed in the second spring fixing part (14).

4. The spring operating mechanism based on a permanent magnet type single dc motor according to claim 1, wherein: be equipped with on second spring mounting (14) and adjust pole (30), the bilateral symmetry of adjusting pole (30) is provided with spacing incision (31), go up seted up on pole (15) with adjust pole (30) matched with regulation hole (32), be equipped with screw thread section (33) on adjusting pole (30), threaded connection has adjusting nut (34) and lock nut (35) in proper order on screw thread section (33), lock nut (35) and adjusting nut (34) offset tightly, and adjusting nut (34) support simultaneously and keep away from one side of energy storage spring (3) at pole (15).

5. The spring operating mechanism based on a permanent magnet type single dc motor according to claim 4, wherein: and a supporting notch (36) for abutting against the adjusting nut (34) is formed in the side part of the upper rod (15).

6. The spring operating mechanism based on a permanent magnet type single dc motor according to claim 1, wherein: linkage hole (37) have been seted up on crank (11), be equipped with linkage convex part (38) on the inner wall of linkage hole (37), during main shaft (7) stretched into linkage hole (37), the lateral part of main shaft (7) be equipped with linkage spout (39) that linkage hole (37) agree with mutually, still be equipped with on main shaft (7) and support step (40), the position joint that main shaft (7) correspond crank (11) top has and is used for propping jump ring (41) on supporting step (40) crank (11).

7. The spring operating mechanism based on a permanent magnet type single direct current motor according to claim 1, characterized in that: the upper end of pull rod (12) is equipped with support gasket (42) that extend to the periphery, be equipped with center pin (43) that run through support gasket (42) on pull rod (12), center pin (43) upper end threaded connection has locking screw (44), press from both sides between the screw head of locking screw (44) and center pin (43) and be equipped with spacing gasket (45), first spring mounting (13) cover is established and is corresponded the position between support gasket (42) and spacing gasket (45) in center pin (43) to there are a plurality of rolling rods (46) along circumference evenly distributed between center pin (43) and first spring mounting (13).