Plant root pesticide application device capable of accurately controlling pesticide application amount

Abstract

The utility model relates to the technical field of agricultural pesticide application equipment, in particular to a plant root pesticide application device capable of accurately controlling the pesticide application amount, which comprises a cylindrical shell and an adapter, a shaft sleeve is hermetically and rotatably connected in the cylindrical shell, a shaft rod is coaxially and fixedly connected in the shaft sleeve, and the adapter is fixedly connected with the shaft rod. The lower portion of the outer wall of the shaft rod is fixedly connected with a spiral blade, the bottom end of the shaft rod is detachably and fixedly connected with a spiral drill bit, the bottom end of the side wall of the shaft rod is provided with a pesticide applying hole, the top end of the shaft sleeve is connected with a driving mechanism driving the shaft sleeve to axially rotate, and the middle of the outer wall of the shaft sleeve is provided with a communicating hole communicating with an inner cavity of the cylindrical shell. The middle of one side of the outer wall of the cylindrical shell is communicated with a pesticide outlet of an electric control valve through an adapter, and pesticide liquid sequentially passes through the adapter, an inner cavity of the cylindrical shell, a communicating hole, an inner cavity of the shaft sleeve and an inner cavity of the shaft rod after the pesticide outlet amount is accurately controlled through the electric control valve and is finally discharged through the pesticide applying hole. The utility model provides the pesticide applying device capable of accurately controlling the pesticide applying amount.

Description

Technical Field

[0001] This utility model relates to the field of agricultural pesticide application equipment technology, and in particular to a plant root application device that can accurately control the amount of pesticide applied. Background Technology

[0002] In recent years, tree diseases and pests have become a serious problem in my country, causing severe environmental damage and economic losses. Tree root diseases and pests, due to their destructive nature and difficulty in control, urgently require a solution. Therefore, root disease and pest control technology is particularly important. In agricultural production, especially in the cultivation of fruit trees and flowers, root application of pesticides is an important method for disease and pest control and nutrient supplementation. Existing root application devices have many shortcomings, such as uneven application, resulting in some plants not receiving sufficient pesticide nourishment while others may be damaged by excessive pesticide use; at the same time, they lack precision in controlling the amount of pesticide applied, making it difficult to provide appropriate dosages according to the needs and growth stages of different plants. Traditional application devices have poor adaptability to complex terrain and different planting densities, failing to meet diverse application needs.

[0003] Chinese utility model patent CN222442327U discloses a plant root sprayer, including a spray cartridge with an application structure inside. The application structure includes an outlet groove formed on the inner wall of the cartridge, a guide column slidably inserted inside the outlet groove, and a discharge groove formed on the outer wall of the guide column. A pressing column is slidably inserted inside the cartridge, a piston is fixed to the bottom end of the pressing column, and a connecting rod is fixed to the outer wall of the pressing column. The dosage can be controlled by controlling the pressing depth of the pressing column, thereby achieving accurate application of pesticides to the plant roots.

[0004] This pesticide application device achieves a certain degree of precision in applying pesticides to plant roots, and its technical solution is mainly suitable for agricultural operations in substrate cultivation environments. However, due to the lack of an effective soil-breaking and ditch-opening mechanism, the device cannot perform efficient pesticide application in conventional farmland soil, greatly limiting its application scope in general agricultural production practices. Furthermore, the device mainly relies on manual pressure application, which not only increases labor intensity but also has limited effectiveness in precisely controlling the amount of pesticide applied, making it difficult to meet the requirements of precision and efficiency in modern agricultural production.

[0005] Chinese utility model patent CN214430408U discloses a tree root application head, including a driving device, a drug feeding device, a blade shaft, and a drill bit device. The drug feeding device includes a drug feeding shell, a drug feeding cylinder, a funnel, and a tapered roller bearing. A drug feeding port is provided on one side of the drug feeding shell, and a straight groove is provided in the middle of the drug feeding cylinder. The drug feeding cylinder is rotatably connected to the drug feeding shell, and its upper end is fixedly connected to the driving device, while its lower end is fixedly connected to the blade shaft. The funnel is installed at the lower end of the straight groove to receive the drug solution. The drill bit device includes a truncated cone and a twist drill bit. A drug application baffle is fixedly provided on the truncated cone, and a drug outlet is provided at the lower end of the blade shaft. The drug application baffle is inserted into the blade shaft, and by rotating the truncated cone, the drug application baffle slides relative to the drug outlet, thereby controlling the amount of drug dispensed.

[0006] This root application device achieves a certain degree of precision in pesticide application to tree roots. Its technology primarily utilizes the transpiration pull of plants to apply a selected dose of pesticide to the roots, allowing the pesticide to be absorbed and transported to the above-ground parts, thereby controlling pests and diseases. However, the device still has shortcomings in dosage control, failing to precisely control the dosage for each application, leading to unstable application results and affecting plant growth and pest and disease control effectiveness. Specifically, the device lacks an effective metering and adjustment mechanism, making precise control of the application amount difficult. In practice, the inability to accurately determine the dosage may result in excessive or insufficient application, thus affecting efficacy. Furthermore, the device may be affected by factors such as soil texture and moisture content during application, further reducing the uniformity and stability of the application. Utility Model Content

[0007] The purpose of this invention is to provide a plant root application device that can precisely control the amount of pesticide applied, so as to solve the technical problems existing in the background art.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows:

[0009] A plant root application device capable of precisely controlling the dosage includes: a cylindrical outer shell and an adapter. A bushing is rotatably and sealed inside the cylindrical outer shell. A shaft is coaxially and fixedly connected inside the bushing. A helical blade is fixedly connected to the lower part of the outer wall of the shaft. A helical drill bit is detachably and fixedly connected to the bottom end of the shaft. An application hole is provided at the bottom end of the side wall of the shaft. A drive mechanism for axial rotation is connected to the top end of the bushing. A connecting hole communicating with the inner cavity of the cylindrical outer shell is provided in the middle of the outer wall of the bushing. An outlet of an electrically controlled valve is connected to the middle of one side of the outer wall of the cylindrical outer shell via the adapter. The inlet of the electrically controlled valve is connected to a storage tank. The liquid medicine, after being precisely controlled by the electrically controlled valve, sequentially passes through the adapter, the inner cavity of the cylindrical outer shell, the connecting hole, the inner cavity of the bushing, and the inner cavity of the shaft, and is finally discharged through the application hole.

[0010] Furthermore, it also includes: rolling bearings, skeleton oil seals and first connecting members. There are two of each of the rolling bearings, skeleton oil seals and first connecting members. The upper and lower sides of the outer wall of the bushing are rotatably connected to the upper and lower sides of the inner wall of the cylindrical outer shell through two rolling bearings respectively. Two skeleton oil seals are symmetrically arranged on the opposite side of the two rolling bearings. Two first connecting members are symmetrically arranged between the two rolling bearings and the two skeleton oil seals respectively. The first connecting member is a snap ring.

[0011] Furthermore, it also includes: a connecting plate and a lower end cover, wherein the upper and lower ends of the cylindrical outer shell are respectively detachably fixedly installed with a connecting plate and a lower end cover.

[0012] Furthermore, the drive mechanism includes a speed reducer and a servo motor. The output shaft of the speed reducer is coaxially fixedly connected to the top of the bushing. The speed reducer is fixedly installed on the top of the connecting plate. The input end of the speed reducer is connected to the output end of the servo motor. The servo motor is fixedly installed on the top of the speed reducer.

[0013] Furthermore, it also includes: mounting plates and fasteners. There are two mounting plates, which are symmetrically fixed to the top of the auger bit. The mounting plates have an inner mounting hole in the middle. The shaft has two outer mounting holes symmetrically opened at the bottom. The two outer mounting holes correspond to the inner mounting holes of the two mounting plates. The fasteners are bolts and nuts. The shank of the bolt passes through the two outer mounting holes and the two inner mounting holes respectively, and a nut is threaded to the outside of the shaft.

[0014] Furthermore, it also includes: stirring blades, wherein two stirring blades are provided, and the two stirring blades are symmetrically arranged on the upper part of the outer wall of the auger bit.

[0015] Furthermore, it also includes: a clamping head, which is fixedly installed on one side of the outer wall of the cylindrical outer shell.

[0016] Furthermore, the electrically controlled valve includes: a valve body, a rotating shaft, rivets, a disc, fastening screws, a second connecting piece, a cylindrical gear, and a drive rod. The valve body has a circular medicine-passing cavity inside, one end of which is connected to an adapter, and the other end is connected to a medicine storage tank. A rotating shaft is rotatably connected inside the valve body, and a disc is fixedly connected to the rotating shaft by rivets. The disc cooperates with the circular medicine-passing cavity. Several fastening screws are provided, and a second connecting piece is fixedly installed on one side of the valve body's outer wall by several fastening screws. The second connecting piece has two circular holes, one and two, which are perpendicular to each other and connected. One end of the rotating shaft passes through the first circular hole and is fixedly connected to a cylindrical gear. A drive rod is vertically slidably connected inside the second circular hole. The drive rod has a strip-shaped toothed groove, and the cylindrical gear meshes with the strip-shaped toothed groove. The top end of the drive rod is fixedly connected to the output end of a telescopic stepper motor, which is electrically connected to a PLC controller.

[0017] Furthermore, the electrically controlled valve also includes: a gasket, a gland, and a fastening nut. The gasket and the gland are respectively fixedly installed between the valve body and the second connecting member and the outer end of the second connecting member by a number of fastening screws. The fastening nut is threaded onto the rotating shaft and presses against the outer wall of the cylindrical gear near the gland.

[0018] Furthermore, the telescopic stepper motor is model 57BYGN, and the PLC controller is model S7-200.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By using an electrically controlled valve in conjunction with a PLC controller, the amount of pesticide applied can be precisely controlled according to the needs and growth stages of different plants, avoiding waste or overuse of pesticides, improving application efficiency, and reducing environmental pollution. The auger drill rod and auger drill bit, composed of a shaft and helical blades, work together to reach deep into the vicinity of plant roots. The pesticide is sprayed out through the application hole under centrifugal force, ensuring uniform distribution of the pesticide in the soil near the plant roots and facilitating full absorption by the plant. The entire device can flexibly adjust the application rate according to different planting scenarios and plant needs via the PLC controller, making it suitable for various terrains and plant densities, thus improving the versatility and practicality of the pesticide application device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a longitudinal sectional view of the present invention;

[0023] Figure 3 This is a transverse longitudinal sectional view of the present invention;

[0024] Figure 4 This is a bottom view of the present invention;

[0025] Figure 5 This is a structural view of the electrically controlled valve in this utility model;

[0026] Figure 6 This is a cross-sectional view of the electrically controlled valve in this utility model;

[0027] Figure 7 This is a longitudinal sectional view of the electrically controlled valve in this utility model.

[0028] The labels in the attached diagram are as follows: 1-Cylindrical outer shell, 2-Rolling bearing, 3-Sleeve, 301-Connecting hole, 4-Skeleton oil seal, 5-First connector, 6-Connecting plate, 7-Lower end cover, 8-Shaft, 801-Application hole, 9-Helical blade, 10-Helical drill bit, 11-Mounting plate, 12-Agitator blade, 13-Reducer, 14-Servo motor, 15-Clamping head, 16-Adapter, 17-Valve body, 18-Shaft, 19-Rivet, 20-Disc, 21-Fasting screw, 22-Second connector, 2201-Round hole one, 2202-Round hole two, 23-Gasket, 24-Pressure cap, 25-Spiral gear, 26-Fasting nut, 27-Drive rod. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] See Figures 1-7 As shown, a plant root application device capable of precisely controlling the amount of pesticide applied includes: a cylindrical outer shell 1 and an adapter 16. A bushing 3 is rotatably connected inside the cylindrical outer shell 1. A shaft 8 is coaxially fixedly connected inside the bushing 3. A spiral blade 9 is fixedly connected to the lower part of the outer wall of the shaft 8. A spiral drill bit 10 is detachably fixedly connected to the bottom end of the shaft 8. A pesticide application hole 801 is opened at the bottom end of the side wall of the shaft 8. A drive mechanism for driving the axial rotation of the bushing 3 is connected to the top end of the bushing 3. A connecting hole 301 communicating with the inner cavity of the cylindrical outer shell 1 is opened in the middle of the outer wall of the bushing 3. An outlet of an electrically controlled valve is connected to the middle of one side of the outer wall of the cylindrical outer shell 1 through the adapter 16. The inlet of the electrically controlled valve is connected to a pesticide storage tank. After the amount of pesticide is precisely controlled by the electrically controlled valve, the pesticide solution passes sequentially through the adapter 16, the inner cavity of the cylindrical outer shell 1, the connecting hole 301, the inner cavity of the bushing 3, the inner cavity of the shaft 8, and is finally discharged from the pesticide application hole 801.

[0031] In this embodiment, the application device further includes: rolling bearing 2, skeleton oil seal 4, and first connecting member 5. Two of each of the rolling bearing 2, skeleton oil seal 4, and first connecting member 5 are provided. The upper and lower sides of the outer wall of the bushing 3 are rotatably connected to the upper and lower sides of the inner wall of the cylindrical outer shell 1 through two rolling bearings 2 respectively. Two skeleton oil seals 4 are symmetrically arranged on the opposite side of the two rolling bearings 2. Two first connecting members 5 are symmetrically arranged between the two rolling bearings 2 and the two skeleton oil seals 4 respectively. The first connecting member 5 is a snap ring. The application device further includes: connecting plate 6 and lower end cover 7. The connecting plate 6 and lower end cover 7 are detachably fixedly installed at the upper and lower ends of the cylindrical outer shell 1 respectively.

[0032] In this embodiment, the drive mechanism includes a reducer 13 and a servo motor 14. The output shaft of the reducer 13 is coaxially fixedly connected to the top of the bushing 3. The reducer 13 is fixedly installed on the top of the connecting plate 6. The input end of the reducer 13 is connected to the output end of the servo motor 14. The servo motor 14 is fixedly installed on the top of the reducer 13 and is electrically connected to an external power supply.

[0033] In this embodiment, the application device further includes: mounting plates 11 and fasteners. Two mounting plates 11 are provided, and the two mounting plates 11 are symmetrically fixedly connected to the top of the auger drill bit 10. An inner mounting hole is opened in the middle of the mounting plate 11, and two outer mounting holes are symmetrically opened at the lower part of the shaft 8. The two outer mounting holes correspond to the inner mounting holes of the two mounting plates 11 respectively. The fasteners are bolts and nuts. The shank of the bolt passes through the two outer mounting holes and the two inner mounting holes respectively, and a nut is threaded to the outside of the shaft 8. The mounting plates 11 and fasteners facilitate the assembly and disassembly of the auger drill bit 10.

[0034] In this embodiment, the application device further includes: stirring blades 12. Two stirring blades 12 are provided, and the two stirring blades 12 are symmetrically arranged on the upper part of the outer wall of the auger bit 10. The stirring blades 12 can fully mix the drug with the soil.

[0035] In this embodiment, the application device further includes a clamping head 15. The clamping head 15 is fixedly installed on one side of the outer wall of the cylindrical outer shell 1, and the entire device is installed on agricultural machinery or a handheld handle through the clamping head 15.

[0036] In this embodiment, the electrically controlled valve includes: a valve body 17, a rotating shaft 18, rivets 19, a disc 20, fastening screws 21, a second connecting member 22, a cylindrical gear 25, and a drive rod 27. The valve body 17 has a circular medicine-passing cavity inside, one end of which is connected to an adapter 16, and the other end is connected to a medicine storage tank. The rotating shaft 18 is rotatably connected inside the valve body 17, and a disc 20 is fixedly connected to the rotating shaft 18 via rivets 19. The disc 20 cooperates with the circular medicine-passing cavity. Several fastening screws 21 are provided, and a second connecting member 22 is fixedly installed on one side of the outer wall of the valve body 17 via several fastening screws 21. The second connecting member 22 has a first circular hole 2201 and a second circular hole 2202, which are perpendicular to each other and connected. One end of the rotating shaft 18 passes through the interior of the first circular hole 2201 and is fixedly connected to a cylindrical gear 25. A drive rod 27 is vertically slidably connected inside the second circular hole 2202. The drive rod 27 has a strip-shaped toothed groove, and the cylindrical gear 25 meshes with the strip-shaped toothed groove. The top end of the drive rod 27 is fixedly connected to the output end of a telescopic stepper motor. The telescopic stepper motor is electrically connected to a PLC controller. The telescopic stepper motor model is 57BYGN, and the PLC controller model is S7-200. According to the needs and growth stages of different plants, the telescopic stepper motor is precisely controlled by the PLC controller to control the telescopic operation, thereby controlling the opening and closing angle and opening duration of the disc 20. This allows for precise control of the amount of pesticide applied, avoiding waste or overuse of pesticides, improving the application effect, and reducing environmental pollution.

[0037] In this embodiment, the electrically controlled valve further includes: a gasket 23, a pressure cap 24, and a fastening nut 26. The gasket 23 and the pressure cap 24 are respectively fixedly installed between the valve body 17 and the second connecting member 22 and the outer end of the second connecting member 22 by a number of fastening screws 21. The fastening nut 26 is threadedly connected to the rotating shaft 18 and presses against the outer wall of the cylindrical gear 25 near the pressure cap 24.

[0038] When in use, the entire device is mounted on agricultural machinery or a handheld handle via the clamping head 15. Then, a hole is drilled near the roots of the plant to be treated using a spiral drill rod and a spiral drill bit, consisting of a shaft and spiral blades, penetrating deep into the plant roots. The pesticide solution, precisely controlled by an electrically controlled valve, flows sequentially through the adapter 16, the inner cavity of the cylindrical outer shell 1, the connecting hole 301, the inner cavity of the bushing 3, and the inner cavity of the shaft 8, finally being sprayed out through the application hole 801 under centrifugal force. This ensures the uniformity of the pesticide in the soil near the plant roots, facilitating full absorption by the plant. The stirring blades 12 further mix the pesticide thoroughly with the soil. The electrically controlled valve is controlled by a PLC controller that extends and retracts a telescopic stepper motor, which in turn drives a cylindrical gear 25 via a drive rod 27. The cylindrical gear 25, through a rotating shaft 18, drives a disc 20 to rotate at an appropriate angle and for a specific duration within the circular pesticide application chamber, allowing for precise control of the pesticide application rate. This avoids pesticide waste or overuse, improves application efficiency, and reduces environmental pollution.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the present utility model's technical solution and based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A plant root application device capable of precisely controlling the dosage of pesticides, characterized in that, include: A cylindrical outer shell (1) and an adapter (16) are provided. A bushing (3) is rotatably and sealed inside the cylindrical outer shell (1). A shaft (8) is coaxially and fixedly connected inside the bushing (3). A spiral blade (9) is fixedly connected to the lower part of the outer wall of the shaft (8). A spiral drill bit (10) is detachably and fixedly connected to the bottom end of the shaft (8). A drug application hole (801) is provided at the bottom end of the side wall of the shaft (8). A drive mechanism for driving its axial rotation is connected to the top end of the bushing (3). The outer wall of the sleeve (3) is provided with a connecting hole (301) that communicates with the inner cavity of the cylindrical shell (1). The middle of one side of the outer wall of the cylindrical shell (1) is connected to the outlet of the electrically controlled valve through the adapter (16). The inlet of the electrically controlled valve is connected to the storage tank. After the liquid medicine is precisely controlled by the electrically controlled valve, it passes through the adapter (16), the inner cavity of the cylindrical shell (1), the connecting hole (301), the inner cavity of the sleeve (3), the inner cavity of the shaft (8), and finally discharged through the application hole (801).

2. The plant root application device capable of precisely controlling the dosage according to claim 1, characterized in that: Also includes: Rolling bearing (2), skeleton oil seal (4) and first connecting member (5) are provided in two. The upper and lower sides of the outer wall of the bushing (3) are rotatably connected to the upper and lower sides of the inner wall of the cylindrical shell (1) by two rolling bearings (2). Two skeleton oil seals (4) are symmetrically arranged on the opposite side of the two rolling bearings (2). Two first connecting members (5) are symmetrically arranged between the two rolling bearings (2) and the two skeleton oil seals (4). The first connecting member (5) is a snap ring.

3. A plant root application device capable of precisely controlling the dosage according to claim 2, characterized in that: Also includes: The connecting plate (6) and the lower end cover (7) are respectively detachably fixedly installed at the upper and lower ends of the cylindrical shell (1).

4. The plant root application device capable of precisely controlling the dosage according to claim 3, characterized in that: The drive mechanism includes a speed reducer (13) and a servo motor (14). The output shaft of the speed reducer (13) is coaxially fixedly connected to the top of the bushing (3). The speed reducer (13) is fixedly installed on the top of the connecting plate (6). The input end of the speed reducer (13) is connected to the output end of the servo motor (14). The servo motor (14) is fixedly installed on the top of the speed reducer (13).

5. A plant root application device capable of precisely controlling the dosage according to claim 1, characterized in that: Also includes: Mounting plates (11) and fasteners are provided. There are two mounting plates (11), which are symmetrically fixed to the top of the auger drill bit (10). An inner mounting hole is provided in the middle of the mounting plate (11). Two outer mounting holes are symmetrically provided at the bottom of the shaft (8). The two outer mounting holes correspond to the inner mounting holes of the two mounting plates (11). The fasteners are bolts and nuts. The shank of the bolt passes through the two outer mounting holes and the two inner mounting holes respectively, and a nut is threaded on the outside of the shaft (8).

6. A plant root application device capable of precisely controlling the dosage according to claim 1, characterized in that: Also includes: The stirring blades (12) are provided in two, and the two stirring blades (12) are respectively symmetrically arranged on the upper part of the outer wall of the auger drill bit (10).

7. A plant root application device capable of precisely controlling the dosage according to claim 1, characterized in that: Also includes: A clamping head (15) is fixedly installed on one side of the outer wall of the cylindrical outer shell (1).

8. A plant root application device capable of precisely controlling the dosage according to claim 1, characterized in that: The electrically controlled valve includes: a valve body (17), a rotating shaft (18), a rivet (19), a disc (20), a fastening screw (21), a second connecting piece (22), a cylindrical gear (25), and a drive rod (27). The valve body (17) has a circular medicine passage cavity inside. One end of the circular medicine passage cavity is connected to the adapter (16), and the other end is connected to the medicine storage tank. The rotating shaft (18) is rotatably connected inside the valve body (17). A disc (20) is fixedly connected to the rotating shaft (18) by a rivet (19). The disc (20) cooperates with the circular medicine passage cavity. Several fastening screws (21) are provided. Several fastening screws are used on one side of the outer wall of the valve body (17). (21) A second connector (22) is fixedly installed. The second connector (22) has a first circular hole (2201) and a second circular hole (2202) respectively. The first circular hole (2201) and the second circular hole (2202) are perpendicular to each other and connected. One end of the rotating shaft (18) passes through the first circular hole (2201) and is fixedly connected to a cylindrical gear (25). A drive rod (27) is vertically slidably connected in the second circular hole (2202). The drive rod (27) has a strip toothed groove. The cylindrical gear (25) meshes with the strip toothed groove. The top end of the drive rod (27) is fixedly connected to the output end of a telescopic stepper motor. The telescopic stepper motor is electrically connected to a PLC controller.

9. A plant root application device capable of precisely controlling the dosage according to claim 8, characterized in that: The electrically controlled valve further includes: a gasket (23), a pressure cap (24), and a fastening nut (26). The gasket (23) and the pressure cap (24) are respectively fixedly installed between the valve body (17) and the second connecting member (22) and the outer end of the second connecting member (22) by a number of fastening screws (21). The fastening nut (26) is threaded on the rotating shaft (18) and presses against the outer wall of the cylindrical gear (25) near the pressure cap (24).

10. A plant root application device capable of precisely controlling the dosage according to claim 8, characterized in that: The telescopic stepper motor is model 57BYGN, and the PLC controller is model S7-200.

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