CN216530928U - Servo electric cylinder for motor filling and sealing equipment - Google Patents
Servo electric cylinder for motor filling and sealing equipment Download PDFInfo
- Publication number
- CN216530928U CN216530928U CN202122447259.9U CN202122447259U CN216530928U CN 216530928 U CN216530928 U CN 216530928U CN 202122447259 U CN202122447259 U CN 202122447259U CN 216530928 U CN216530928 U CN 216530928U
- Authority
- CN
- China
- Prior art keywords
- motor
- rotor shaft
- electric cylinder
- shaft
- servo electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A servo electric cylinder for motor filling and sealing equipment comprises a shell, a motor assembly and an output assembly; the motor component is arranged in the shell, and the output end of the motor component is connected with the output component; the motor assembly comprises a stator and a rotor shaft, the stator is fixedly arranged on the inner side wall of the casing, the rotor shaft is arranged on the inner side of the stator, and the rotor shaft is a hollow shaft. The invention adopts the design of hollowing the rotor shaft, the output shaft can be sleeved in the rotor shaft and directly drive the output shaft to move after being transmitted by the screw rod and the nut, most of transmission chains are reduced, the whole transmission efficiency is high, and meanwhile, as the transmission process is the speed reduction of the single ball screw rod, the traditional structure is reduced by a gear transmission pair, the transmission size is greatly reduced, the cost is saved, and better economic benefit can be generated.
Description
Technical Field
The invention relates to the field of industrial electric cylinders, in particular to a servo electric cylinder for motor filling and sealing equipment.
Background
The encapsulation of the motor can improve the insulating property of the motor, so that the motor can obtain better use performance. When the encapsulating equipment encapsulates the motor stator, the multi-component encapsulating material is required to be mixed according to a strict proportion, and then the good technical performance can be obtained. In order to ensure the precision of the equipment during material mixing, certain requirements are provided for the precision of a power source servo electric cylinder of the material mixing mechanism. Most now all pass through the rear motor and pass through the shaft coupling with motor output shaft and screw rod connection transmission or the motor that the side was put passes through the hold-in range and is connected motor output shaft and lead screw, lead to drive mechanism to occupy the inside a large amount of spaces of electric jar, have restricted the structure size of electric jar.
Disclosure of Invention
The invention aims to provide a servo electric cylinder for motor filling and sealing equipment, which solves the problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
a servo electric cylinder for motor filling and sealing equipment comprises a shell, a motor assembly and an output assembly; the motor assembly is arranged in the shell, and the output end of the motor assembly is connected with the output assembly;
the motor assembly comprises a stator and a rotor shaft, the stator is fixedly arranged on the inner side wall of the casing, the rotor shaft is arranged on the inner side of the stator, and the rotor shaft is a hollow shaft.
Further, the output assembly comprises a screw nut seat, a screw nut and an output shaft; the output shaft is coaxially arranged inside the rotor shaft, threads are arranged on the output shaft, a screw nut is sleeved on the output shaft in a threaded mode, the screw nut is connected with a screw nut seat, and the screw nut seat is fixedly connected with the rotor shaft.
Furthermore, one end of the output shaft is connected through a wear-resistant sleeve, and the other end of the output shaft is connected through a shaft sleeve; and a sealing ring is arranged between the screw nut seat and the screw nut.
Furthermore, motor magnetic steel is pasted on the surface of the rotor shaft, the surface of the motor magnetic steel is nested by a carbon fiber sleeve or a stainless steel sleeve, and copper balance rings are sleeved at two ends of the motor magnetic steel in a hot-pressing mode.
Further, the stator of the motor is in interference fit connection with the shell through a thermal sleeve.
Further, the outer circle of the screw nut seat is provided with paired angular contact bearings, the two ends of the shell are respectively provided with a front flange and a rear flange, and the outer circle of each angular contact bearing is connected with the front flange.
Furthermore, a front cover is installed at the front end of the front flange, and a framework oil seal is installed between the front cover and the front flange.
Furthermore, the rear end of the rotor shaft is supported by a single deep groove ball bearing, the outer ring of the deep groove ball bearing is fixed on a rear flange connected with the machine shell, and the rear end of the deep groove ball bearing is provided with a wave spring.
Furthermore, a power-off electromagnetic brake is installed inside the rear flange, and a rotor of the power-off electromagnetic brake is connected with the output shaft through a flat key; and a rotary transformer support is arranged on the rear flange, a stator of a reluctance type rotary transformer is arranged in the rotary transformer support, and a rotor of the rotary transformer is coaxially arranged with the rotor shaft and can rotate along with the rotation of the rotor shaft.
Furthermore, a plurality of hanging rings are arranged on the casing.
Compared with the prior art, the invention has the following technical effects:
the invention adopts the design of hollowing the rotor shaft, the output shaft can be sleeved in the rotor shaft and directly drive the output shaft to move after being transmitted by the screw rod and the nut, most of transmission chains are reduced, the whole transmission efficiency is high, and meanwhile, as the transmission process is the speed reduction of the single ball screw rod, the traditional structure is reduced by a gear transmission pair, the transmission size is greatly reduced, the cost is saved, and better economic benefit can be generated.
Because the structure of the embedded direct drive type of the driving motor is adopted, the rotary output of the motor is directly changed into the linear motion of the lifting cylinder only through the lead screw nut by the motor output shaft, the lifting speed interval of the wider electric cylinder can be brought by the wide speed regulation range of the motor, and the material mixing speed under different working conditions can be met.
Because the rotor shaft is locked by the electromagnetic power-off brake, the locking of the output shaft can be ensured when the electric cylinder does not work, the backflow of the potting material is prevented, the material mixing progress is improved, and meanwhile, the safety of industrial occasions is enhanced.
The rotary transformer is arranged inside, and the control precision of the industrial electric cylinder is greatly improved through closed-loop servo control.
Drawings
FIG. 1 is an external view of the servo electric cylinder
Fig. 2 is a sectional structure view of the servo electric cylinder;
the names of the components marked in the figures are as follows:
1. a vector electromagnetic brake; 2. a deep groove ball bearing; 3. a stator; 4. a housing; 5. a hoisting ring; 6. a front flange; 7. a front cover; 8. an output shaft; 9. a lead screw nut; 10. an angular contact bearing; 11. a shaft sleeve; 12. a lead screw nut seat; 13. a rotor shaft; 14. a rear flange; 15. a wear-resistant sleeve; 16. a rotary transformer support; 17. a rear cover; 18. a reluctance type resolver.
Detailed Description
As shown in the figures, a servo electric cylinder for motor filling and sealing equipment comprises a shell, a motor assembly and an output assembly; the motor assembly is arranged in the shell, and the output end of the motor assembly is connected with the output assembly;
the motor assembly comprises a stator and a rotor shaft, the stator is fixedly arranged on the inner side wall of the casing, the rotor shaft is arranged on the inner side of the stator, and the rotor shaft is a hollow shaft.
The motor stator is arranged inside the shell. The rotor shaft of the motor is supported by bearings at two ends to realize rotary motion, and the rotor shaft drives the output shaft to move back and forth through a nut fixedly connected with the rotor shaft.
The output assembly comprises a screw nut seat, a screw nut and an output shaft; the output shaft is coaxially arranged inside the rotor shaft, threads are arranged on the output shaft, a screw nut is sleeved on the output shaft in a threaded mode, the screw nut is connected with a screw nut seat, and the screw nut seat is fixedly connected with the rotor shaft.
Furthermore, a stator of the motor is in interference fit connection with the shell through a shrink fit installation method, and the axial positions of the shell and the stator are guaranteed through a shrink fit tool.
Furthermore, the magnetic steel of the motor is adhered to the surface of the rotor shaft through the anaerobic adhesive, and the surface of the magnetic steel is nested by a carbon fiber sleeve or a stainless steel sleeve, so that the magnetic steel is prevented from falling off. The two ends of the magnetic steel are sleeved with copper balance rings in a hot mode, and the balance rings can be used for carrying out dynamic balance on the whole rotor shaft.
Further, the rotor shaft is hollow and is arranged inside the casing in a penetrating mode, the right end of the rotor shaft is connected with the screw seat through threads to form a whole, and the connecting position of the rotor shaft and the screw seat is provided with a positioning spigot, so that the coaxiality of two connections can be guaranteed. The nut seat is internally provided with a nut of the ball screw, so that the motor can drive the rotor shaft to rotate, and the nut connected with the motor can also rotate along with the rotor shaft. The nut seat and the nut are pressed against the sealing ring, so that the sealing between the interior of the motor and the exterior of the nut is ensured.
Further output shaft and ball screw cooperate, the embedded cavity department in the rotor shaft, have the screw thread with screw matched with on the output shaft, rotate through the screw and turn into the linear motion of output shaft through the ball screw pair. The rear end of the output shaft is provided with a guide sleeve made of wear-resistant bronze material, and the guide sleeve can guide the reciprocating motion of the output shaft in the hollow part of the rotor shaft. The guide sleeve is added with a solid lubricating material, so that the abrasion of the guide sleeve can be reduced, and the resistance in motion can be reduced.
Further the excircle of screw seat installs the angular contact bearing who disposes in pairs, can bear the axial force that the lead screw output shaft received, and the bearing excircle is connected with preceding flange.
Furthermore, a front cover is installed at the front end of the front flange to separate the screw from the outside, and a framework oil seal is installed between the front cover and the front flange to separate the external environment from the inside of the electric steel.
Furthermore, the rear end of the rotor shaft is supported through a single deep groove ball bearing, the outer ring of the deep groove ball bearing is fixed on a rear flange connected with the casing, and a wave spring is installed at the rear end of the deep groove ball bearing and can apply pre-tightening force to the deep groove ball bearing, so that noise and vibration during rotation are reduced.
Furthermore, a space is reserved in the rear flange, the power-off electromagnetic brake is installed, a rotor of the power-off electromagnetic brake is connected with the output shaft through a flat key, and the rotor shaft can be locked when the brake is in a braking state, so that the current position of the output shaft of the electric cylinder is fixed.
And a rotary transformer support is arranged behind the rear flange, a stator of a reluctance type rotary transformer is arranged in the rotary transformer support, a rotor of the rotary transformer and a rotor shaft are coaxially arranged and can rotate along with the rotation of the rotor shaft, and the rotor can be fed back to a driver in real time, so that higher control precision is obtained.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A servo electric cylinder for motor filling and sealing equipment is characterized by comprising a machine shell (4), a motor assembly and an output assembly; the motor component is arranged in the shell (4), and the output end of the motor component is connected with the output component;
the motor assembly comprises a stator (3) and a rotor shaft (13), the stator (3) is fixedly arranged on the inner side wall of the casing (4), the rotor shaft (13) is arranged on the inner side of the stator (3), and the rotor shaft (13) is a hollow shaft.
2. Servo electric cylinder for a motor potting apparatus according to claim 1, characterized in that the output assembly comprises a lead screw nut holder (12), a lead screw nut (9) and an output shaft (8); the output shaft (8) is coaxially arranged inside the rotor shaft (13), threads are arranged on the output shaft (8), the screw nut (9) is sleeved on the output shaft (8) in a threaded manner, the screw nut (9) is connected with the screw nut seat (12), and the screw nut seat (12) is fixedly connected with the rotor shaft (13).
3. The servo electric cylinder for the motor filling and sealing device according to claim 2, characterized in that one end of the output shaft (8) is connected through a wear-resistant sleeve (15) and the other end is connected through a shaft sleeve (11); a sealing ring is arranged between the screw nut seat (12) and the screw nut (9).
4. The servo electric cylinder for the motor filling and sealing equipment as claimed in claim 1, wherein motor magnetic steel is pasted on the surface of the rotor shaft (13), the surface of the motor magnetic steel is nested by a carbon fiber sleeve or a stainless steel sleeve, and two ends of the motor magnetic steel are thermally sleeved with copper balance rings.
5. The servo electric cylinder for the motor filling and sealing device according to claim 1, characterized in that the stator (3) of the motor is in interference connection with the casing through a shrink sleeve.
6. The servo electric cylinder for the motor filling and sealing device according to claim 1, characterized in that the outer circle of the screw nut seat (12) is provided with angular contact bearings (10) which are arranged in pairs, the two ends of the machine shell (4) are respectively provided with a front flange (6) and a rear flange (14), and the outer circle of the angular contact bearings (10) is connected with the front flange.
7. The servo electric cylinder for the motor filling and sealing equipment is characterized in that a front cover (7) is installed at the front end of the front flange, and a framework oil seal is installed between the front cover and the front flange.
8. Servo cylinder for electrical machine potting equipment according to claim 6, characterized in that the rear end of the rotor shaft (13) is supported by a single deep groove ball bearing (2), the outer ring of the deep groove ball bearing (2) being fixed to a rear flange connected to the machine housing, the rear end of the deep groove ball bearing being fitted with a wave spring.
9. The servo electric cylinder for the motor filling and sealing equipment is characterized in that the back flange is internally provided with a power-off electromagnetic brake, and a rotor of the power-off electromagnetic brake is connected with the output shaft (8) through a flat key; the rear flange is provided with a rotary transformer support, a stator of a reluctance type rotary transformer (18) is arranged in the rotary transformer support (16), and a rotor of the rotary transformer is coaxially arranged with a rotor shaft and can rotate along with the rotation of the rotor shaft.
10. The servo electric cylinder for the motor filling and sealing device according to claim 1, characterized in that a plurality of lifting rings (5) are arranged on the casing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122447259.9U CN216530928U (en) | 2021-10-11 | 2021-10-11 | Servo electric cylinder for motor filling and sealing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122447259.9U CN216530928U (en) | 2021-10-11 | 2021-10-11 | Servo electric cylinder for motor filling and sealing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216530928U true CN216530928U (en) | 2022-05-13 |
Family
ID=81520422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122447259.9U Active CN216530928U (en) | 2021-10-11 | 2021-10-11 | Servo electric cylinder for motor filling and sealing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216530928U (en) |
-
2021
- 2021-10-11 CN CN202122447259.9U patent/CN216530928U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3900894B1 (en) | Robot joint unit with high degree of integrity and high performance | |
| US11400555B2 (en) | Outer rotor motor direct-drive drilling or milling machine | |
| CN108603576A (en) | Ball-screw apparatus and the electric actuator for having the ball-screw apparatus | |
| CN103448898A (en) | Marine integrated electric steering engine | |
| CN216530928U (en) | Servo electric cylinder for motor filling and sealing equipment | |
| CN204179910U (en) | A kind of electric tool brushless motor structure | |
| CN101804937B (en) | Cargo lift tractor | |
| CN108336861A (en) | External rotor electric machine | |
| CN208158326U (en) | External rotor electric machine | |
| CN111490656A (en) | Novel motor structure | |
| CN212462994U (en) | Integrative motor drive mechanism of lead screw pivot | |
| CN207010448U (en) | A kind of screw-nut transmission for directly driving screw | |
| CN206065518U (en) | A kind of servo torque directly drives milling head | |
| CN104534041A (en) | Electric execution device of dual-redundancy direct-drive type roller lead screw pair | |
| WO2011079600A1 (en) | Explosion proof cable winding drum | |
| CN110125973B (en) | Underwater electric joint structure with position and speed feedback | |
| CN204392067U (en) | A kind of eddy current type axially engages permanent magnet speed regulation device | |
| CN110380570B (en) | Direct driving device for oil pumping unit | |
| CN210518071U (en) | Self-locking permanent magnet synchronous servo motor with high integration level | |
| CN219086936U (en) | Knapsack type integrated electric cylinder | |
| CN210927324U (en) | Traction motor for coal mining machine convenient to brake is changed | |
| CN218456370U (en) | Screw motor | |
| CN201726279U (en) | Coaxial birotor permanent magnet DC motor | |
| CN210164871U (en) | Transmission device with pretightening force and planetary roller screw rod as electric cylinder | |
| CN117856523B (en) | Compact integrated telescopic rotary electric cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |