Electric actuating motor for TRT

Abstract

The utility model relates to the technical field of TRT application equipment, in particular to an electric actuating motor for a TRT, which comprises a motor body, a piston rod and a driving unit, a driving cavity is arranged on the motor body, the piston rod is arranged in the driving cavity, and the piston rod is arranged along the length direction of the driving cavity. A guide groove is formed in the side wall, in the moving direction, of the driving cavity, the guide part of the piston rod is arranged in the guide groove, and the driving unit is arranged on the motor body and used for driving the piston rod to move. The hydraulic system solves the problems that a traditional hydraulic system is large in power consumption, serious in heating, large in occupied space, difficult to maintain, high in use cost and the like, and is free of pollution and emission, energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model belongs to the technical field of TRT application equipment, and in particular relates to an electric actuator motor for TRT. Background Art

[0002] The blast furnace top gas recovery turbine unit (TRT) utilizes the pressure energy and thermal energy of blast furnace top gas, a by-product of blast furnace smelting, to make the gas do work through a turbine expander, converting it into mechanical energy, and then converting the mechanical energy into electrical energy.

[0003] In the prior art, the conventional TRT stator blade adjustment mechanism adopts a hydraulic control system, which is composed of a hydraulic station (power unit and valve control unit), an actuator (hydraulic cylinder), connecting pipelines, etc. Its power unit includes a high-power three-phase asynchronous motor, a filter, a pressure regulating valve, a directional control valve, etc.

[0004] However, the hydraulic station is not convenient to use under certain working conditions or in a small space due to its large size, high power and power consumption, as well as the complexity of the connecting pipes. Utility Model Content

[0005] The utility model provides an electric actuator motor for TRT, which solves the problems of high power consumption, serious heat generation, large space occupation, difficult maintenance and high use cost of the traditional hydraulic system, and is pollution-free, emission-free, energy-saving and environmentally friendly.

[0006] In order to achieve the above object, the technical solution of the utility model is:

[0007] An electric actuator motor for TRT, comprising a motor body, a piston rod and a drive unit;

[0008] The motor body is provided with a driving cavity, the piston rod is arranged in the driving cavity, and the piston rod is arranged along the length direction of the driving cavity;

[0009] A guide groove is provided on the side wall of the driving chamber along the moving direction, and the guide portion of the piston rod is arranged in the guide groove;

[0010] The driving unit is arranged on the motor body, and the driving unit is used to drive the piston rod to move. Preferably,

[0011] Preferably, the driving unit comprises a ball screw, a threaded pair and a driving member;

[0012] The ball screw is rotatably arranged on the motor body, one end of the ball screw is connected to the driving member, and the driving member is used to drive the ball screw to rotate;

[0013] The thread pair is sleeved on the other end of the ball screw, and the thread pair is connected to the piston rod.

[0014] Preferably, the driving member includes a driving motor, a driving pulley, a driven pulley and a synchronous belt;

[0015] The driving motor is arranged on the motor body;

[0016] The driving pulley is arranged on the driving shaft of the driving motor;

[0017] The driven pulley is arranged on the ball screw;

[0018] The synchronous belt is wound around the driving pulley and the driven pulley, and the driving motor is used to drive the driving pulley to rotate.

[0019] Preferably, it also includes a reducer arranged between the driving motor and the driving pulley.

[0020] Preferably, it further comprises a displacement unit disposed between the motor body and the piston rod;

[0021] The displacement unit includes a displacement sensor, a sensor magnetic ring and a sensor bracket;

[0022] The displacement sensor is arranged on the motor body, and the sensor magnetic ring is arranged on the magnetic rod of the displacement sensor;

[0023] The sensor bracket is sleeved on the piston rod, and the sensor bracket is connected to the sensor magnetic ring.

[0024] Preferably, a scale is provided on the motor body.

[0025] Preferably, a pulley protection cover is provided on the motor body.

[0026] Preferably, a limiting ring for limiting the position of the piston rod is provided at the opening of the driving cavity.

[0027] Technical effects and advantages of the utility model:

[0028] 1. The electric actuator motor for TRT provided in this application can replace the power required by the traditional hydraulic control system, and is convenient for use in some special working conditions or narrow spaces. It has a simple structure, small size, fast response, low energy consumption, and energy-saving and environmentally friendly effects.

[0029] 2. By setting it as a displacement unit, the piston rod drives the sensor magnetic ring to move back and forth on the magnetic rod of the displacement sensor when it reciprocates, which can detect the running position and real-time status of the piston rod and feed back specific data to the host computer for display. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of an electric actuator motor for TRT provided in an embodiment of the present application;

[0031] Figure 2 is a partial cross-sectional view of an electric actuator motor for TRT provided in an embodiment of the present application;

[0032] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0033] Figure 4 It is a top view of an electric actuator motor for TRT provided in an embodiment of the present application.

[0034] Numbers in the figure: 1. Motor body; 11. Drive cavity; 12. Guide groove; 13. Scale; 14. Pulley protection cover; 15. Limiting ring; 2. Piston rod; 3. Drive unit; 31. Ball screw; 32. Thread pair; 33. Drive member; 331. Drive motor; 332. Driving pulley; 333. Driven pulley; 334. Synchronous belt; 335. Reducer; 4. Displacement unit; 41. Displacement sensor; 42. Sensor magnetic ring; 43. Sensor bracket. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0036] See also Figure 1 , Figure 2 and Figure 3 As shown, an electric actuator motor for TRT includes a motor body 1, a piston rod 2 and a drive unit 3.

[0037] The bottom of the motor body 1 is provided with a positioning pin, and the motor body 1 can be fixed on a designated device by the positioning pin. The motor body 1 is provided with a driving cavity 11, and the piston rod 2 is slidably arranged in the driving cavity 11, and the piston rod 2 can move along the length direction of the driving cavity 11.

[0038] A guide groove 12 is provided on the side wall of the driving chamber 11 along the moving direction, and the guide portion of the piston rod 2 is arranged in the guide groove 12. Under the action of the guide groove 12, the piston rod 2 can slide along the length direction of the guide groove 12.

[0039] The driving unit 3 is disposed on the motor body 1 , and the driving unit 3 can drive the piston rod 2 to move by adjusting the driving unit 3 .

[0040] In the embodiment of the present application, by setting up a small motor body 1, under the action of the drive unit 3 and the guide groove 12, the piston rod 2 can make reciprocating motion along the length direction of the drive chamber 11, so that the piston rod 2 acts on the specified equipment, which can replace the power required by the traditional hydraulic control system, and is convenient for the equipment to be used in some special working conditions or in a small space. It has a simple structure, small size, fast response, low energy consumption, and energy-saving and environmental protection effects.

[0041] The driving unit 3 includes a ball screw 31 , a thread pair 32 and a driving member 33 .

[0042] The ball screw 31 is rotatably arranged on the motor body 1 via a bearing. The inner ring of the bearing is interference fit with the ball screw 31 , and the outer ring of the bearing is interference fit with the motor body 1 . The bearing is not marked in this embodiment.

[0043] One end of the ball screw 31 is connected to the driving member 33 . By adjusting the driving member 33 , the driving member 33 can drive the ball screw 31 to rotate.

[0044] The thread pair 32 is sleeved on the other end of the ball screw 31 , and the thread sleeve is threadedly engaged with the threaded end of the ball screw 31 . The thread pair 32 can be fixed to the piston rod 2 by welding or by bolts.

[0045] In the embodiment of the present application, by adjusting the driving member 33, the driving member 33 drives the ball screw 31 to rotate. Under the action of the guide portion of the piston rod 2 and the guide groove 12, the ball screw 31 drives the thread pair 32 engaged therewith to move along the length direction of the guide groove 12, thereby driving the piston rod 2 to achieve reciprocating motion.

[0046] See also Figure 2 and Figure 3 As shown, the driving member 33 includes a driving motor 331 , a driving pulley 332 , a driven pulley 333 and a synchronous belt 334 .

[0047] The base of the driving motor 331 is fixed to the motor body 1 by bolts, and the driving motor 331 can be configured as a servo motor.

[0048] The driving pulley 332 is disposed on the driving shaft of the driving motor 331 , and the driving pulley 332 is connected to the driving shaft of the driving motor 331 via a key.

[0049] The driven pulley 333 is disposed on the ball screw 31 , and the driven pulley 333 and the ball screw 31 are connected via a key.

[0050] The synchronous belt 334 is wound around the driving pulley 332 and the driven pulley 333 . By adjusting the driving motor 331 , the driving motor 331 can drive the driving pulley 332 to rotate.

[0051] In the embodiment of the present application, by adjusting the drive motor 331, the drive shaft of the drive motor 331 drives the active pulley 332 to rotate. Under the action of the synchronous belt 334, the active pulley 332 drives the driven pulley 333 to rotate, and then the driven pulley 333 drives the ball screw 31 to rotate.

[0052] It also includes a reducer 335 disposed between the driving motor 331 and the driving pulley 332. The input end of the reducer 335 is connected to the driving shaft of the driving motor 331 through a coupling, and the output end of the reducer 335 is connected to the driving pulley 332 through a key.

[0053] See also Figure 2 , Figure 3 and Figure 4 As shown, the motor body 1 and the piston rod 2 also include a displacement unit 4 , which includes a displacement sensor 41 , a sensor magnetic ring 42 and a sensor bracket 43 .

[0054] The base of the displacement sensor 41 is fixed on the motor body 1 by bolts. The sensor magnetic ring 42 is arranged on the magnetic rod of the displacement sensor 41 , and the sensor magnetic ring 42 can slide along the length direction of the magnetic rod of the displacement sensor 41 .

[0055] The sensor bracket 43 is sleeved on the piston rod 2 , and the sensor bracket 43 is sleeved on the sensor magnetic ring 42 .

[0056] In the embodiment of the present application, when the piston rod 2 reciprocates, it drives the sensor magnetic ring 42 to move back and forth on the magnetic rod of the displacement sensor 41, which can detect the operating position and real-time status of the piston rod 2, and can feed back specific data to the host computer to realize closed-loop control.

[0057] The motor body 1 is provided with a scale 13 , and the scale size direction of the scale 13 is consistent with the length direction of the piston rod 2 .

[0058] In order to reduce the impact of dust in the air on the use of the synchronous belt 334, a pulley protection cover 14 is provided on the motor body 1. The protection cover 14 is provided on the driving pulley 332, the driven pulley 333 and the synchronous belt 334, and the protection cover is fixed to the motor body 1 by bolts.

[0059] In order to limit the movement of the piston rod 2 , a limiting ring 15 is provided at the opening of the driving chamber 11 , and the limiting ring 15 is fixed to the inner wall of the driving chamber 11 by bolts.

[0060] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0061] Working principle of this utility model:

[0062] When in use, the drive motor 331 is adjusted, and the drive shaft of the drive motor 331 drives the reducer 335 to rotate, and the reducer 335 drives the driving pulley 332 to rotate. Under the action of the synchronous belt 334, the driving pulley 332 drives the driven pulley 333 to rotate. During the rotation process, the driven pulley 333 drives the ball screw 31 to rotate, and the ball screw 31 drives the threaded pair 32 meshing therewith to move. Under the limiting action of the guide block and the guide groove 12, the screw pair drives the piston rod 2 to perform piston movement.

[0063] Among them, when the piston rod 2 reciprocates, it drives the sensor magnetic ring 42 to move back and forth on the magnetic rod of the displacement sensor 41, which can detect the running position and real-time status of the piston rod 2, and the specific data can be displayed through the host computer.

[0064] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An electric actuator motor for TRT, characterized in that: It comprises a motor body (1), a piston rod (2) and a drive unit (3); The motor body (1) is provided with a driving chamber (11), the piston rod (2) is arranged in the driving chamber (11), and the piston rod (2) is arranged along the length direction of the driving chamber (11); A guide groove (12) is provided on the side wall of the driving chamber (11) along the moving direction, and a guide portion of the piston rod (2) is arranged in the guide groove (12); The driving unit (3) is arranged on the motor body (1), and the driving unit (3) is used to drive the piston rod (2) to move.

2. The electric actuator motor for TRT according to claim 1, characterized in that: The driving unit (3) comprises a ball screw (31), a thread pair (32) and a driving member (33); The ball screw (31) is rotatably arranged on the motor body (1), one end of the ball screw (31) is connected to the driving member (33), and the driving member (33) is used to drive the ball screw (31) to rotate; The thread pair (32) is sleeved on the other end of the ball screw (31), and the thread pair (32) is connected to the piston rod (2).

3. The electric actuator motor for TRT according to claim 2, characterized in that: The driving member (33) comprises a driving motor (331), a driving pulley (332), a driven pulley (333) and a synchronous belt (334); The driving motor (331) is arranged on the motor body (1); The driving pulley (332) is arranged on the driving shaft of the driving motor (331); The driven pulley (333) is arranged on the ball screw (31); The synchronous belt (334) is wound around the driving pulley (332) and the driven pulley (333), and the driving motor (331) is used to drive the driving pulley (332) to rotate.

4. The electric actuator motor for TRT according to claim 3, characterized in that: It also includes a speed reducer (335) arranged between the driving motor (331) and the driving pulley (332).

5. The electric actuator motor for TRT according to claim 1, characterized in that: It also includes a displacement unit (4) arranged between the motor body (1) and the piston rod (2); The displacement unit (4) comprises a displacement sensor (41), a sensor magnetic ring (42) and a sensor bracket (43); The displacement sensor (41) is arranged on the motor body (1), and the sensor magnetic ring (42) is arranged on the magnetic rod of the displacement sensor (41); The sensor bracket (43) is sleeved on the piston rod (2), and the sensor bracket (43) is connected to the sensor magnetic ring (42).

6. The electric actuator motor for TRT according to claim 5, characterized in that: A scale (13) is provided on the motor body (1).

7. The electric actuator motor for TRT according to claim 6, characterized in that: A pulley protection cover (14) is provided on the motor body (1).

8. The electric actuator motor for TRT according to claim 1, characterized in that: A limiting ring (15) for limiting the position of the piston rod (2) is provided at the opening of the driving chamber (11).

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