CN212726731U

CN212726731U - Speed regulating mechanism for permanent magnet speed regulator

Info

Publication number: CN212726731U
Application number: CN202021913452.6U
Authority: CN
Inventors: 邵玉峰; 吴义敏
Original assignee: Hefei Wofu Power Technology Co ltd
Current assignee: Hefei Wofu Power Technology Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-03-16
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a speed regulating mechanism for a permanent magnet speed regulator, which comprises a first mounting box and a second mounting box, wherein the second mounting box is installed on one side of the first mounting box, a permanent magnet outer rotor and a coil inner rotor are installed in the inner cavity of the first mounting box, the permanent magnet outer rotor is sleeved on one end of the coil inner rotor, a speed reducer and a driving motor are installed at the bottom of the inner cavity of the second mounting box, a speed reducer is connected onto the output shaft of the driving motor, a threaded rod is connected onto the output shaft of the speed reducer, guide rods are installed on both sides of the speed reducer, the guide rods and the threaded rod all penetrate through the bottom end of a threaded sleeve, a transmission bearing is installed on the top end of; the speed regulating mechanism operates by driving the motor, so that the size of a gap between one end of an inner cavity of the permanent magnet outer rotor and the end part of the coil inner rotor is changed, the speed regulation is realized, the structure is simple, and the use is convenient; the speed regulating mechanism has strong stability and avoids the phenomenon of inaccurate speed regulation.

Description

Speed regulating mechanism for permanent magnet speed regulator

Technical Field

The utility model relates to a permanent magnet speed regulator technical field, concretely relates to speed regulating mechanism for permanent magnet speed regulator.

Background

The permanent magnet speed regulation technology is a breakthrough new technology developed internationally in recent years, is an application technology specially aiming at the centrifugal load speed regulation and energy conservation of fans and pumps, has the characteristics of high efficiency, energy conservation, high reliability, no rigid connection and torque transmission, capability of being applied in severe environment, great reduction of the vibration of the whole system, reduction of the system maintenance, prolongation of the service life of the system and the like, and becomes the first choice for the energy conservation technology improvement of the fans and pumps.

The permanent magnet speed regulator is a novel speed regulating device applying a permanent magnet speed regulating technology, and has the advantages of no harmonic pollution, effective vibration isolation, long life cycle, low failure rate, simple maintenance, low environmental requirement and the like. However, the existing permanent magnet speed regulator has the problems of inaccurate speed regulation, influence on production and even accidents, and has complex structure and inconvenient use.

Therefore, how to improve the problems that the existing permanent magnet speed regulator has inaccurate speed regulation and complex structure and is inconvenient to use is the problem to be solved by the invention.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the present invention is to provide a speed adjusting mechanism for a permanent magnet speed regulator: drive the threaded rod through the speed reducer through the driving motor operation and rotate, be connected through the meshing between threaded rod and the thread bush, thereby make the thread bush move along the guide bar, thereby drive the driven shaft and remove, thereby the size in space between permanent magnetism outer rotor inner chamber one end and the coil inner rotor tip has been changed, thereby the speed governing has been realized, through cup jointing the drive bearing on the driven shaft, the while connecting key is located the keyway, make can not relative rotation between drive bearing inner circle and the driven shaft, revolve to the positioning thread through set nut on, make can not relative slip between drive bearing inner circle and the driven shaft, the stability of this speed adjusting mechanism has been guaranteed, it is inaccurate to have solved current permanent magnet speed regulator speed governing, the structure is complicated, awkward problem.

The purpose of the utility model can be realized by the following technical scheme:

a speed regulating mechanism for a permanent magnet speed regulator comprises a first installation box, a second installation box, a driving shaft, a driven shaft, a permanent magnet outer rotor and a coil inner rotor, wherein the second installation box is installed on one side of the first installation box;

a permanent magnet outer rotor and a coil inner rotor are arranged in the inner cavity of the first installation box, one end of the driving shaft penetrates through the side face of the first installation box and is connected to one side of the permanent magnet outer rotor, the permanent magnet outer rotor is sleeved on one end of the coil inner rotor, and one side, far away from the permanent magnet outer rotor, of the coil inner rotor is connected to one end of the driven shaft;

supporting seat, thread bush, speed reducer, driving motor are installed to second install bin inner chamber bottom, be connected with the speed reducer on driving motor's the output shaft, be connected with the threaded rod on the output shaft of speed reducer, the guide bar is all installed to the speed reducer both sides, threaded rod and two guide bars set up side by side, guide bar, threaded rod are kept away from speed reducer one end and are all connected on one side of supporting seat, guide bar, threaded rod all run through the bottom of thread bush, the thread bush top is run through and is installed drive bearing, drive bearing cup joints on the driven shaft.

Furthermore, a permanent magnet is installed on the inner wall of the permanent magnet outer rotor, and a gap is formed between one end of an inner cavity of the permanent magnet outer rotor and the end part of the coil inner rotor.

Furthermore, the top and the bottom of the middle position of the driven shaft are both provided with a connecting key, the top and the bottom of the inner ring inner cavity of the transmission bearing are both provided with a key groove, and the connecting key and the key groove are matched components.

Furthermore, the driven shaft is provided with the location screw thread at the connecting key both ends, the driven shaft has all cup jointed positioning nut at the thread bush both ends, and two positioning nut are the cooperation component with two location screw threads respectively.

The utility model has the advantages that:

(1) the utility model discloses a speed governing mechanism for permanent magnet speed regulator, the motor drives the rotation of permanent magnet outer rotor through the driving shaft, permanent magnet outer rotor in the magnetic field of permanent magnet, coil inner rotor relative motion, thereby drive the rotation of coil inner rotor, drive the load rotation through the driven shaft, realize the torque transmission, when needing to carry out the speed governing, start driving motor, driving motor operates and drives the threaded rod through the speed reducer and rotates, be connected through the meshing between threaded rod and the thread bush, thereby make the thread bush move along the guide bar, thereby drive the driven shaft and move, thereby the size in space between permanent magnet outer rotor inner chamber one end and the coil inner rotor tip has been changed, thereby speed governing has been realized; the speed regulating mechanism operates by driving the motor, so that the size of a gap between one end of an inner cavity of the permanent magnet outer rotor and the end part of the coil inner rotor is changed, the speed regulation is realized, the structure is simple, and the use is convenient;

(2) the utility model discloses a speed adjusting mechanism for permanent magnet speed regulator, through the top at the driven shaft intermediate position, the connection key is all installed to the bottom, inner circle inner chamber top at drive bearing, the keyway has all been seted up to the bottom, cup joint drive bearing on the driven shaft, the connection key is located the keyway simultaneously, make and can not rotate relatively between drive bearing inner circle and the driven shaft, and all be provided with the positioning thread at the connection key both ends through at the driven shaft, positioning nut has all been cup jointed at the driven shaft at the thread bush both ends, revolve to positioning thread through positioning nut on, make and can not relative slip between drive bearing inner circle and the driven shaft, this speed adjusting mechanism's stability has been guaranteed, it appears to avoid unsafe speed governing phenomenon.

Drawings

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

Fig. 1 is a schematic structural view of a speed regulating mechanism for a permanent magnet speed regulator according to the present invention;

fig. 2 is a schematic view of the internal structure of the first and second installation boxes of the present invention;

fig. 3 is a schematic diagram of the internal structure of the permanent magnet outer rotor of the present invention;

fig. 4 is a connection view of the speed reducer and the driving motor of the present invention;

fig. 5 is a side view of the threaded sleeve of the present invention;

FIG. 6 is a schematic structural view of the inner cavity of the transmission bearing of the present invention;

fig. 7 is a schematic structural view of the driven shaft of the present invention.

In the figure: 101. a first installation box; 102. a second installation box; 103. a drive shaft; 104. a driven shaft; 105. a permanent magnet outer rotor; 106. an inner rotor of the coil; 107. positioning a nut; 108. a supporting seat; 109. a threaded sleeve; 110. a speed reducer; 111. a drive motor; 112. a permanent magnet; 113. a guide bar; 114. a threaded rod; 115. a drive bearing; 116. a keyway; 117. positioning the screw thread; 118. a connecting key.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-7, the utility model relates to a speed regulating mechanism for a permanent magnet speed regulator, which comprises a first mounting box 101, a second mounting box 102, a driving shaft 103, a driven shaft 104, a permanent magnet outer rotor 105 and a coil inner rotor 106, wherein the second mounting box 102 is mounted on one side of the first mounting box 101, the driving shaft 103 is rotatably mounted on one side of the first mounting box 101 far away from the second mounting box 102 through a bearing, and the driven shaft 104 is rotatably mounted on one side of the second mounting box 102 far away from the first mounting box 101 through a bearing;

a permanent magnet outer rotor 105 and a coil inner rotor 106 are arranged in the inner cavity of the first installation box 101, one end of the driving shaft 103 penetrates through the side surface of the first installation box 101 and is connected to one side of the permanent magnet outer rotor 105, the permanent magnet outer rotor 105 is sleeved on one end of the coil inner rotor 106, and one side, far away from the permanent magnet outer rotor 105, of the coil inner rotor 106 is connected to one end of the driven shaft 104;

supporting seat 108 is installed to second installation box 102 inner chamber bottom, thread bush 109, speed reducer 110, driving motor 111, be connected with speed reducer 110 on driving motor 111's the output shaft, be connected with threaded rod 114 on speed reducer 110's the output shaft, guide bar 113 is all installed to speed reducer 110 both sides, threaded rod 114 and two guide bars 113 set up side by side, guide bar 113, threaded rod 114 is kept away from speed reducer 110 one end and is all connected on one side of supporting seat 108, guide bar 113, threaded rod 114 all runs through on the bottom of thread bush 109, drive bearing 115 is installed in running through on thread bush 109 top, drive bearing 115 cup joints on driven shaft 104.

Specifically, the inner wall of the permanent magnet outer rotor 105 is provided with a permanent magnet 112, and a gap is arranged between one end of the inner cavity of the permanent magnet outer rotor 105 and the end of the coil inner rotor 106; connecting keys 118 are mounted at the top and the bottom of the middle position of the driven shaft 104, key grooves 116 are formed at the top and the bottom of an inner ring inner cavity of the transmission bearing 115, and the connecting keys 118 and the key grooves 116 are matched components; the driven shaft 104 is provided with positioning threads 117 at both ends of the connecting key 118, the driven shaft 104 is sleeved with positioning nuts 107 at both ends of the thread bush 109, and the two positioning nuts 107 and the two positioning threads 117 are matched components respectively.

Referring to fig. 1-7, the operating principle of the speed adjusting mechanism for a permanent magnet speed regulator according to the present invention is as follows:

the motor drives the permanent magnet outer rotor 105 to rotate through the driving shaft 103, the permanent magnet outer rotor 105 and the coil inner rotor 106 move relatively in the magnetic field of the permanent magnet 112, so that the coil inner rotor 106 is driven to rotate, the load is driven to rotate through the driven shaft 104, and torque transmission is achieved;

when speed regulation is needed, the driving motor 111 is started, the driving motor 111 rotates to drive the threaded rod 114 to rotate through the speed reducer 110, and the threaded rod 114 is meshed with the threaded sleeve 109 to enable the threaded sleeve 109 to move along the guide rod 113 and drive the driven shaft 104 to move, so that the size of a gap between one end of the inner cavity of the permanent magnet outer rotor 105 and the end of the coil inner rotor 106 is changed, and speed regulation is achieved.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. A speed regulating mechanism for a permanent magnet speed regulator is characterized by comprising a first installation box (101), a second installation box (102), a driving shaft (103), a driven shaft (104), a permanent magnet outer rotor (105) and a coil inner rotor (106), wherein the second installation box (102) is installed on one side of the first installation box (101), the driving shaft (103) is installed on one side, away from the second installation box (102), of the first installation box (101) in a rotating mode through a bearing, and the driven shaft (104) is installed on one side, away from the first installation box (101), of the second installation box (102) in a rotating mode through a bearing;

a permanent magnet outer rotor (105) and a coil inner rotor (106) are installed in the inner cavity of the first installation box (101), one end of the driving shaft (103) penetrates through the side face of the first installation box (101) and is connected to one side of the permanent magnet outer rotor (105), the permanent magnet outer rotor (105) is sleeved on one end of the coil inner rotor (106), and one side, far away from the permanent magnet outer rotor (105), of the coil inner rotor (106) is connected to one end of the driven shaft (104);

supporting seat (108), thread bush (109), speed reducer (110), driving motor (111) are installed to second install bin (102) inner chamber bottom, be connected with speed reducer (110) on the output shaft of driving motor (111), be connected with threaded rod (114) on the output shaft of speed reducer (110), guide bar (113) are all installed to speed reducer (110) both sides, threaded rod (114) and two guide bar (113) set up side by side, speed reducer (110) one end is all connected on one side of supporting seat (108) is kept away from in guide bar (113), threaded rod (114), the bottom of thread bush (109) all runs through in guide bar (113), threaded rod (114), thread bush (109) top is run through and is installed drive bearing (115), drive bearing (115) cup joint on driven shaft (104).

2. The speed regulating mechanism for the permanent magnet speed regulator according to claim 1, wherein the inner wall of the permanent magnet outer rotor (105) is provided with a permanent magnet (112), and a gap is arranged between one end of the inner cavity of the permanent magnet outer rotor (105) and the end of the coil inner rotor (106).

3. The speed regulating mechanism for the permanent magnet speed regulator according to claim 1, wherein the top and the bottom of the middle position of the driven shaft (104) are both provided with a connecting key (118), the top and the bottom of the inner ring inner cavity of the transmission bearing (115) are both provided with a key slot (116), and the connecting key (118) and the key slot (116) are matched components.

4. The speed regulating mechanism for the permanent magnet speed regulator according to claim 3, wherein the driven shaft (104) is provided with positioning threads (117) at both ends of the connecting key (118), the driven shaft (104) is sleeved with positioning nuts (107) at both ends of the thread bush (109), and the two positioning nuts (107) and the two positioning threads (117) are matched components respectively.