Root pesticide application head driven by screw thread
阅读说明：本技术 一种螺纹驱动的根部施药头 (Root pesticide application head driven by screw thread ) 是由 贾志成 林曦 金晶 于 2019-11-13 设计创作，主要内容包括：本发明涉及一种螺纹驱动的根部施药头,包括注射针推进装置、针筒分离装置和施药机箱体,所述注射针推进装置安装在施药机箱体内上部,注射针推进装置下方连接注射针,所述施药机箱体底部设有用于注射针进、出箱体的开口,所述注射针包括注射针外筒与注射针杆,所述注射针上安装有用于分离注射针外筒与注射针杆的针筒分离装置。发明的方案可以应用于注射液态剂、粉剂、颗粒剂药物,且避免使用液压或气压推进,减少了液压或气压缸的长度,减少了整体尺寸。本发明采用齿轮副与传递螺纹结构,传动效率高,工作稳定,使用寿命长,具有三个箱体部分并且不需要多处密封,可以有效防止药液外漏的同时又具有经济实用性。(The invention relates to a thread-driven root pesticide application head, which comprises a syringe needle propelling device, a syringe barrel separating device and a pesticide application machine box body, wherein the syringe needle propelling device is arranged at the upper part in the pesticide application machine box body, a syringe needle is connected below the syringe needle propelling device, an opening for the syringe needle to enter and exit the box body is arranged at the bottom of the pesticide application machine box body, the syringe needle comprises a syringe needle outer barrel and a syringe needle rod, and the syringe barrel separating device for separating the syringe needle outer barrel from the syringe needle rod is arranged on the syringe needle. The scheme of the invention can be applied to injection of liquid, powder and granular medicines, avoids using hydraulic or pneumatic propulsion, reduces the length of a hydraulic or pneumatic cylinder and reduces the overall size. The invention adopts a gear pair and transmission thread structure, has high transmission efficiency, stable work and long service life, has three box parts, does not need sealing at multiple positions, can effectively prevent the liquid medicine from leaking and has economical practicability.)
1. A screw-driven root applicator head, characterized by: the injection needle comprises an injection needle outer barrel and an injection needle rod, and the injection needle is provided with a needle cylinder separating device for separating the injection needle outer barrel from the injection needle rod;
the injection needle propelling device comprises a propelling device box body, a first motor, a first gear and a screw rod, wherein the propelling device box body is fixed in the pesticide application machine box body;
the needle cylinder separating device comprises a separating device box body, a second motor, a second gear and a gear thread sleeve, the separating device box body is fixed on the thread pushing cylinder, the second motor is fixed on the separating device box body, the output end of the second motor is connected with the second gear, the second gear is in meshing transmission with the gear thread sleeve, the outer cylinder of the injection needle is in thread fit with the gear thread sleeve, the gear thread sleeve is installed on the separating device box body, and the injection needle rod is installed on the thread pushing cylinder.
2. A screw-driven root applicator head according to claim 1, wherein: the first gear comprises a large gear and a small gear, the first motor is connected with the small gear, the large gear and the small gear are in meshing transmission, and the screw rod is installed inside the propelling device box and connected with the large gear.
3. A screw-driven root applicator head according to claim 1, wherein: the limiting device is arranged on the lower portion of the propelling device box body and comprises a propelling device bearing, a bearing sleeve and a blocking cover, the propelling device bearing is respectively installed on two sides of a screw rod step, the bearing sleeve and the blocking cover are installed on the outer portion of the propelling device bearing, the blocking cover is fixed on the propelling device box cover on the lower portion of the propelling device box body, and the bearing sleeve is in threaded connection with the blocking cover.
4. A screw-driven root applicator head according to claim 1, wherein: the inner side of the gear thread sleeve is in thread fit with the outer barrel of the injection needle, the outer side of the gear thread sleeve is sequentially provided with an inner retaining ring, a separating device bearing and an outer retaining ring, the upper end of the gear thread sleeve is sleeved with a round nut for limiting, and the separating device box body and the separating device box cover are arranged on the outer side of the separating device bearing and the retaining ring.
5. A screw-driven root applicator head according to claim 1, wherein: the lower part of the pesticide applying machine box body is provided with a pesticide applying machine box cover, and the pesticide applying machine box cover is provided with an opening for the injection needle to enter and exit the pesticide applying machine box body.
6. A method of applying a screw-driven root applicator head as claimed in any one of claims 1 to 5, wherein: comprises a pushing process, a separating injection process and a retracting process; the propelling process is that the injection needle propelling device works to push the injection needle to enter soil, and the outer barrel of the injection needle is closed with the injection needle rod; the separation injection process is that the needle cylinder separation device controls the outer cylinder of the injection needle to separate from the injection needle rod, so that the medicine flows out; the retraction process is that the syringe separating device controls the outer barrel of the injection needle to be closed with the injection needle rod, and the injection needle propelling device works to retract the injection needle;
the transmission of the first motor enables the thread pushing cylinder to linearly move along the direction of the screw rod, so as to finish the soil entering and soil discharging movement of the injection needle; the transmission of the second motor makes the outer barrel of the injection needle move to complete the separation and the closing of the needle head of the injection needle rod.
Technical Field
The invention relates to the field of plant pest control, in particular to a thread-driven root pesticide application head.
Background
In recent years, various mechanical devices have been commonly used in order to effectively control tree diseases and insect pests and to supply nutrients to trees in a timely manner. The existing pressure type trunk injector and the micropore quick trunk injector and other machines are used for trunk pest control, although the types are various, the cost of parts is higher, the structure is complex, the use is complicated, the injection time is long, the service life is short, and the damage and the leakage of liquid medicine are easily caused. At present, root pesticide application devices on the market are deficient, the traditional root pesticide application method is to directly spray the roots of trees through a small container, but the roots are difficult to accurately apply pesticide to the roots and the stems, pesticide investment is increased, the cost is high, and the environment is polluted. The existing root pesticide applying device is inserted into soil by using a pesticide applying gun head, and accurately and quantitatively applies pesticide to a position needing pesticide application, but the device only sprays the pesticide on the surface of the root, can not effectively prevent and control insect pests in trees, and delivers the pesticide liquid to each part of the trees. Therefore, a need exists for a rapid, efficient injection device.
Disclosure of Invention
The invention aims to provide a thread-driven root pesticide application head for preventing and treating pests in trees.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a root medicine application head driven by threads comprises a needle propelling device, a needle cylinder separating device and a medicine application machine box body, wherein the needle propelling device is arranged at the upper part in the medicine application machine box body;
the injection needle propelling device comprises a propelling device box body, a first motor, a first gear and a screw rod, wherein the propelling device box body is fixed in the pesticide application machine box body;
the needle cylinder separating device comprises a separating device box body, a second motor, a second gear and a gear thread sleeve, the separating device box body is fixed on the thread pushing cylinder, the second motor is fixed on the separating device box body, the output end of the second motor is connected with the second gear, the second gear is in meshing transmission with the gear thread sleeve, the outer cylinder of the injection needle is in thread fit with the gear thread sleeve, the gear thread sleeve is installed on the separating device box body, and the injection needle rod is installed on the thread pushing cylinder.
The first gear comprises a large gear and a small gear, the first motor is connected with the small gear, the large gear and the small gear are in meshing transmission, and the screw rod is installed inside the propelling device box and connected with the large gear.
The limiting device is arranged on the lower portion of the propelling device box body and comprises a propelling device bearing, a bearing sleeve and a blocking cover, the propelling device bearing is respectively installed on two sides of a screw rod step, the bearing sleeve and the blocking cover are installed on the outer portion of the propelling device bearing, the blocking cover is fixed on the propelling device box cover on the lower portion of the propelling device box body, and the bearing sleeve is in threaded connection with the blocking cover.
The inner side of the gear thread sleeve is in thread fit with the outer barrel of the injection needle, the outer side of the gear thread sleeve is sequentially provided with an inner retaining ring, a separating device bearing and an outer retaining ring, the upper end of the gear thread sleeve is sleeved with a round nut for limiting, and the separating device box body and the separating device box cover are arranged on the outer side of the separating device bearing and the retaining ring.
The lower part of the pesticide applying machine box body is provided with a pesticide applying machine box cover, and the pesticide applying machine box cover is provided with an opening for the injection needle to enter and exit the pesticide applying machine box body.
The invention also provides a medicine application method of the root medicine application head driven by the screw thread, which comprises a propelling process, a separating injection process and a withdrawing process; the propelling process is that the injection needle propelling device works to push the injection needle to enter soil, and the outer barrel of the injection needle is closed with the injection needle rod; the separation injection process is that the needle cylinder separation device controls the outer cylinder of the injection needle to separate from the injection needle rod, so that the medicine flows out; the retraction process is that the syringe separating device controls the outer barrel of the injection needle to be closed with the injection needle rod, and the injection needle propelling device works to retract the injection needle;
the transmission of the first motor enables the thread pushing cylinder to linearly move along the direction of the screw rod, so as to finish the soil entering and soil discharging movement of the injection needle; the transmission of the second motor makes the outer barrel of the injection needle move to complete the separation and the closing of the needle head of the injection needle rod.
Compared with the prior art, the invention has the beneficial effects that:
the scheme of the invention can be applied to injection of liquid, powder and granular medicines, avoids using hydraulic or pneumatic propulsion, reduces the length of a hydraulic or pneumatic cylinder and reduces the overall size. The invention adopts a gear pair and transmission thread structure, has high transmission efficiency, stable work and long service life, has three box parts, does not need sealing at multiple positions, can effectively prevent the liquid medicine from leaking and has economical practicability.
Drawings
FIG. 1 is a schematic diagram of three operating states of the present invention.
FIG. 2 is a schematic diagram of the initial state of the present invention.
FIG. 3 is a schematic view of the invention in an extended state.
Fig. 4 is a schematic view of the injection state of the present invention.
Fig. 5 is a schematic view of the needle advancing device of the present invention.
Fig. 6 is a schematic view of the syringe separating apparatus of the present invention.
In the figure, 1-needle advancing device, 2-syringe separating device, 3-applicator housing, 11-first motor, 12-advancing device housing, 13-pinion, 14-bull gear, 15-lead screw, 16-advancing device bearing, 17-bearing housing, 18-advancing device cover, 19-shield, 110-screw advancing cartridge, 21-separating device housing, 22-second motor, 23-needle outer housing, 24-needle bar, 25-round nut, 26-gear screw housing, 27-shield ring, 28-separating device bearing, 29-separating device cover, 210-second gear, 31-separating device housing, 32-separating device cover.
Detailed Description
The present invention will be further described with reference to the following specific examples.
A thread-driven root drug application head comprises a
the injection
the syringe separating
The first gear comprises a
The limiting device is arranged on the lower portion of the propelling
The inner side of the gear threaded sleeve 26 is in threaded fit with the outer
The lower part of the medicine applying
The application method of the root application head driven by the screw thread comprises a propelling process, a separation injection process and a withdrawing process; the propelling process is that the injection
the transmission of the
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any person skilled in the art can make any simple modification, equivalent replacement, and improvement on the above embodiment without departing from the technical spirit of the present invention, and still fall within the protection scope of the technical solution of the present invention.
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