CN219529457U - Control device based on servo motor - Google Patents
Control device based on servo motor Download PDFInfo
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- CN219529457U CN219529457U CN202320559389.8U CN202320559389U CN219529457U CN 219529457 U CN219529457 U CN 219529457U CN 202320559389 U CN202320559389 U CN 202320559389U CN 219529457 U CN219529457 U CN 219529457U
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Abstract
The utility model discloses a control device based on a servo motor, which comprises a cylinder body, wherein a piston I is arranged in the cylinder body, a screw sleeve is welded on the top outer wall of the piston I, a screw is connected to the top outer wall of the cylinder body through a bearing, the bottom end of the screw is in threaded connection with the screw sleeve, the top outer wall of the cylinder body is connected with a motor body through a bolt, one end of an output shaft of the motor body is connected with the screw through a key, a servomotor cylinder is arranged on one side of the cylinder body, a connecting pipe II is connected to the outer wall on one side of the servomotor cylinder through a thread, an oil inlet II is arranged on the outer wall on one side of the servomotor cylinder, and the oil inlet II is connected with the connecting pipe II. According to the utility model, through the motor body, the screw rod and the screw sleeve, the screw rod is driven by the motor body to rotate, so that the screw rod drives the screw sleeve and the piston I to enable oil pressure in the cylinder body to enter the servomotor cylinder, further, the servomotor cylinder is more convenient to control, and the control structure is simplified.
Description
Technical Field
The utility model relates to the technical field of water turbines, in particular to a control device based on a servo motor.
Background
The hydraulic turbine speed regulator is one of very important auxiliary control equipment of the hydraulic generator set, and the hydraulic turbine speed regulator controls the servomotor to work through the hydraulic system, so that the angle of a control guide vane of the servomotor is adjusted, and the speed regulation effect of the hydraulic turbine is achieved.
Chinese patent No. CN201720629923.2 relates to a hydraulic turbine servomotor closing speed accurate control system, and belongs to the technical field of hydraulic regulation systems of hydropower plants. The hydraulic turbine servomotor closing speed accurate control system, the output pressure oil of the speed regulator control cabinet enters the servomotor closing cavity through the stop valve V-102 and the speed regulator accident pressure distribution valve, and the oil return of the servomotor opening cavity returns to the speed regulator control cabinet through the sectional closing device, the throttle valve CV-102, the speed regulator accident pressure distribution valve and the stop valve V-103 to close the control oil path for the servomotor; the output pressure oil of the speed regulator control cabinet enters a servomotor opening cavity through a stop valve V-103, a speed regulator accident pressure distribution valve, a throttle valve CV-102 and a sectional closing device, the servomotor closing cavity controls oil return to the speed regulator control cabinet through the speed regulator accident pressure distribution valve and the stop valve V-102, and a control oil way is opened for the servomotor.
In the prior art, equipment such as a pump station, an energy storage tank and the like is needed to be used for controlling the hydraulic system of the servomotor, so that the volume is large and complex, the control process of the servomotor is complex, and the speed regulation of the water turbine is inconvenient. Therefore, there is a need to design a control device based on a servo motor to solve the above problems.
Disclosure of Invention
The utility model aims to provide a control device based on a servo motor, which solves the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a controlling means based on servo motor, includes the cylinder body, the inside of cylinder body is provided with piston one, piston one's top outer wall welding has the swivel nut, the top outer wall of cylinder body is connected with the screw rod through the bearing, the bottom and the swivel nut threaded connection of screw rod, the top outer wall of cylinder body has the motor body through bolted connection, the output shaft one end and the screw rod of motor body pass through key connection, one side of cylinder body is provided with the servomotor hydro-cylinder, one side outer wall of cylinder body has connecting pipe two through threaded connection, one side outer wall of servomotor hydro-cylinder is provided with oil inlet two, oil inlet two is connected with connecting pipe two.
Furthermore, a connecting pipe I is connected to the outer wall of one side of the cylinder body through threads, an oil inlet I is formed in the outer wall of one side of the servomotor cylinder, and the oil inlet I is connected with the connecting pipe I.
Further, the servomotor oil cylinder comprises a shell, a second piston is arranged in the shell, the top of the second piston is connected with a push rod through a bolt, and the top end of the push rod extends to the outside of the shell.
Further, the top outer wall of the shell is connected with a sealing ring through a bolt, and the sealing ring is sleeved outside the push rod.
Further, a guide cylinder is welded on the outer wall of the top of the first piston, a guide rod is welded on the inner wall of the top of the cylinder body, and the bottom end of the guide rod is inserted into the guide cylinder.
Further, the outer wall of the guide cylinder is provided with a limit groove, the outer wall of the guide rod is inserted with a limit column, and one end of the limit column extends to the inside of the limit groove.
Further, a first sealing ring is arranged on the outer wall of the first piston, and a second sealing ring is arranged on the outer wall of the second piston.
In the technical scheme, the control device based on the servo motor has the beneficial effects that:
(1) Through motor body, screw rod and the swivel nut that set up, utilize motor body to drive the screw rod and rotate for screw rod drive swivel nut and piston one with the inside oil pressure of cylinder body go into the inside of servomotor hydro-cylinder, and then make more convenient when controlling servomotor hydro-cylinder, and simplified control structure.
(2) The sealing ring is arranged outside the push rod of the servomotor cylinder, so that the dynamic sealing performance between the shell and the push rod is better, and the occurrence of oil leakage of the servomotor cylinder is further prevented.
(3) Through guiding cylinder, guide bar and the spacing post that set up, utilize the guiding cylinder to slide and cup joint in the outside of guide bar for piston one is more stable when the inside motion of cylinder body, cooperates through the spacing groove on spacing post and the guiding cylinder, makes the guiding cylinder be difficult for taking place to break away from with the guide bar.
(4) Through sealing ring one and sealing ring two, the phenomenon that hydraulic oil about it can not take place the series flow through sealing ring one makes the phenomenon that hydraulic oil about it can not take place the series flow through sealing ring two, and then makes more accurate when controlling power ware hydro-cylinder.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic diagram of an overall structure provided by an embodiment of a control device based on a servo motor according to the present utility model.
Fig. 2 is a schematic diagram of an internal structure of a control device based on a servo motor according to an embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a servomotor cylinder provided by an embodiment of a control device based on a servomotor in the present utility model.
Fig. 4 is an enlarged schematic diagram of a position a according to an embodiment of the control device based on a servo motor of the present utility model.
Reference numerals illustrate:
the cylinder body 1, the servomotor cylinder 2, the piston 3, the threaded sleeve 4, the threaded rod 5, the motor body 6, the shell 7, the oil inlet 8, the oil inlet 9, the connecting pipe 10, the connecting pipe 11, the piston 12, the push rod 13, the guide cylinder 14, the guide rod 15, the sealing ring 16, the sealing ring 17, the limiting groove 18, the limiting column 19 and the sealing ring 20.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the control device based on the servo motor provided by the embodiment of the utility model comprises a cylinder body 1, wherein a first piston 3 is arranged in the cylinder body 1, a threaded sleeve 4 is welded on the outer wall of the top of the first piston 3, a screw 5 is connected to the outer wall of the top of the cylinder body 1 through a bearing, the bottom end of the screw 5 is in threaded connection with the threaded sleeve 4, a motor body 6 is connected to the outer wall of the top of the cylinder body 1 through a bolt, one end of an output shaft of the motor body 6 is connected with the screw 5 through a key, a servomotor cylinder 2 is arranged on one side of the cylinder body 1, a connecting pipe II 11 is connected to the outer wall of one side of the servomotor cylinder 2 through a thread, and an oil inlet II 9 is connected with the connecting pipe II 11.
Specifically, the embodiment comprises a cylinder body 1, hydraulic oil is filled in the cylinder body 1, a piston I3 is arranged in the cylinder body 1, the piston I3 can move up and down in the cylinder body 1, a screw sleeve 4 is welded on the outer wall of the top of the piston I3, a screw rod 5 is connected to the outer wall of the top of the cylinder body 1 through a bearing, the bearing connected with the cylinder body 1 through the screw rod 5 is a sealed bearing, the bottom end of the screw rod 5 is in threaded connection with the screw sleeve 4, a motor body 6 is connected to the outer wall of the top of the cylinder body 1 through a bolt, the motor body 6 is a servo motor, the servo motor is provided with an encoder, the motor body 6 realizes closed-loop control of position and speed, one end of an output shaft of the motor body 6 is connected with the screw rod 5 through a key, the motor body 6 is utilized to drive the screw 5 to rotate, and then the screw 5 drives the threaded sleeve 4 and the piston I3 to move downwards, one side of the cylinder body 1 is provided with the servomotor cylinder 2, one side outer wall of the cylinder body 1 is connected with the connecting pipe II 11 through threads, one side outer wall of the servomotor cylinder 2 is provided with the oil inlet II 9, the oil inlet II 9 is connected with the connecting pipe II 11, hydraulic oil in the cylinder body 1 is pressed into the servomotor cylinder 2 when the piston I3 moves downwards, so that the servomotor cylinder 2 acts, the distance of movement of the piston II 12 corresponds when the motor body 6 rotates for one circle, and the action amplitude of the servomotor cylinder 2 can be accurately controlled through the rotation of the motor body 6.
According to the servo motor-based control device provided by the utility model, the motor body 6, the screw 5 and the screw sleeve 4 are arranged, and the screw 5 is driven to rotate by the servo motor, so that the screw 5 drives the screw sleeve 4 and the piston I3 to press the oil in the cylinder body 1 into the servomotor cylinder 2, the servomotor cylinder 2 is more convenient to control, the occupied space is reduced compared with a hydraulic system in the prior art, and the control structure is simplified.
In another embodiment provided by the utility model, a first connecting pipe 10 is connected to the outer wall of one side of the cylinder body 1 through threads, an oil inlet 8 is formed in the outer wall of one side of the servomotor cylinder 2, and the oil inlet 8 is connected with the first connecting pipe 10, so that hydraulic oil in the servomotor cylinder 2 can flow into the cylinder body 1 through the first connecting pipe 10.
In another embodiment provided by the utility model, the servomotor cylinder 2 comprises a shell 7, a piston II 12 is arranged in the shell 7, a push rod 13 is connected to the top of the piston II 12 through a bolt, the push rod 13 is an output end for working, and the top end of the push rod 13 extends to the outside of the shell 7, so that the push rod 13 can perform angle adjustment on guide vanes of the water turbine.
In still another embodiment provided by the utility model, the sealing ring 20 is connected to the outer wall of the top of the shell 7 through a bolt, the sealing ring 20 is sleeved outside the push rod 13, and the sealing ring 20 is arranged outside the push rod 13 of the servomotor oil cylinder 2, so that the dynamic sealing performance between the shell 7 and the push rod 13 is better, and further the occurrence of oil leakage of the servomotor oil cylinder 2 is prevented.
In still another embodiment provided by the utility model, the guide cylinder 14 is welded on the outer wall of the top of the first piston 3, the guide rod 15 is welded on the inner wall of the top of the cylinder body 1, the bottom end of the guide rod 15 is inserted into the guide cylinder 14, the guide cylinder 14 is slidably sleeved outside the guide rod 15, so that the first piston 3 moves in the cylinder body 1 more stably, the limit groove 18 is formed in the outer wall of the guide cylinder 14, the limit post 19 is inserted into the outer wall of the guide rod 15, one end of the limit post 19 extends into the limit groove 18, and the limit post 19 is matched with the limit groove 18 on the guide cylinder 14, so that the guide cylinder 14 is not easy to separate from the guide rod 15.
In still another embodiment of the present utility model, the outer wall of the first piston 3 is provided with the first sealing ring 16, the outer wall of the second piston 12 is provided with the second sealing ring 17, the series flow phenomenon of the hydraulic oil above and below the first sealing ring 16 is avoided, the series flow phenomenon of the hydraulic oil above and below the second sealing ring 17 is avoided, and the control of the servomotor cylinder 2 is more accurate.
Working principle: when the push rod 13 of the oil cylinder servomotor is required to be controlled to move, a power supply of the motor body 6 is connected through a wire, the motor body 6 drives the screw rod 5 to rotate, the screw rod 5 rotates to drive the screw sleeve 4 to move downwards, the screw sleeve 4 drives the piston I3 to move downwards, the piston I3 presses hydraulic oil in the cylinder body 1 into the bottom of the piston II 12 of the oil cylinder 2 of the servomotor, the hydraulic oil pushes the piston II 12 to move upwards, the push rod 13 moves upwards, and when the piston II 12 moves upwards, the piston II 12 presses the hydraulic oil at the top of the piston II into the cylinder body 1, so that automatic circulation of the hydraulic oil between the cylinder body 1 and the oil cylinder 2 of the servomotor is realized.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (7)
1. The utility model provides a controlling means based on servo motor, its characterized in that, including cylinder body (1), the inside of cylinder body (1) is provided with piston one (3), the top outer wall welding of piston one (3) has swivel nut (4), the top outer wall of cylinder body (1) is connected with screw rod (5) through the bearing, the bottom and the swivel nut (4) threaded connection of screw rod (5), the top outer wall of cylinder body (1) has the motor body through bolted connection, the output shaft one end and the screw rod (5) of motor body pass through key connection, one side of cylinder body (1) is provided with servomotor hydro-cylinder (2), one side outer wall of cylinder body (1) is provided with connecting pipe two (11) through threaded connection, one side outer wall of servomotor hydro-cylinder (2) is provided with oil inlet two (9), oil inlet two (9) are connected with connecting pipe two (11).
2. The servo motor-based control device according to claim 1, wherein a connecting pipe I (10) is connected to one side outer wall of the cylinder body (1) through threads, an oil inlet I (8) is arranged on one side outer wall of the servomotor cylinder (2), and the oil inlet I (8) is connected with the connecting pipe I (10).
3. A control device based on a servo motor according to claim 1, characterized in that the servomotor cylinder (2) comprises a housing (7), a piston two (12) is arranged in the housing (7), a push rod (13) is connected to the top of the piston two (12) through a bolt, and the top end of the push rod (13) extends to the outside of the housing (7).
4. A control device based on a servo motor according to claim 3, characterized in that the top outer wall of the housing (7) is connected with a sealing ring (20) by a bolt, and the sealing ring (20) is sleeved outside the push rod (13).
5. The servo motor-based control device according to claim 1, wherein a guide cylinder (14) is welded on the top outer wall of the piston I (3), a guide rod (15) is welded on the top inner wall of the cylinder body (1), and the bottom end of the guide rod (15) is inserted into the guide cylinder (14).
6. The servo motor-based control device according to claim 5, wherein the outer wall of the guide cylinder (14) is provided with a limit groove (18), the outer wall of the guide rod (15) is inserted with a limit post, and one end of the limit post extends into the limit groove (18).
7. A control device based on a servo motor according to claim 3, characterized in that the outer wall of the first piston (3) is provided with a first sealing ring (16) and the outer wall of the second piston (12) is provided with a second sealing ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320559389.8U CN219529457U (en) | 2023-03-21 | 2023-03-21 | Control device based on servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320559389.8U CN219529457U (en) | 2023-03-21 | 2023-03-21 | Control device based on servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529457U true CN219529457U (en) | 2023-08-15 |
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ID=87583365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320559389.8U Active CN219529457U (en) | 2023-03-21 | 2023-03-21 | Control device based on servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529457U (en) |
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2023
- 2023-03-21 CN CN202320559389.8U patent/CN219529457U/en active Active
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