RU2809941C1 - Device for automatic movement of navigation antenna for terrain digitization - Google Patents

Abstract

FIELD: information-measuring systems.

SUBSTANCE: invention can be used for remote monitoring of grain storage parameters in grain bulk in floor storage warehouses and automation of control of grain storage parameters. The essence of the claimed solution is that a device for automatically moving a navigation antenna for digitizing the terrain contains a support frame with a mechanism for attaching to a vehicle, a movable frame with a rotating beam, an electric linear mechanism with a retractable rod and a platform for installing a navigation antenna and a Laser pilot, control and monitor device, mechanism for moving the movable frame from an electric motor-gearbox on a plate with a gear wheel and a toothed bar underneath, mounted on the inner upper part of the transverse beam of the support frame, while the mechanism for moving the movable frame consists of a motor-gearbox with a sprocket on the shaft, mounted on a support plate, with guide rotating sprockets, which are connected by a chain attached to supports on the longitudinal beams.

EFFECT: automatic movement of the navigation antenna, which is placed above the boundary of the digitized area, regardless of the movement of the vehicle, thereby increasing the accuracy of digitization of agricultural land and the speed of preparing equipment and carrying out work without stopping the movement of the vehicle when performing the workflow of electronic mapping of agricultural land above the border of the digitized area.

3 cl, 5 dwg

Description

Field of technology to which the invention relates

The invention relates to the field of radio engineering, in particular to modules for automatically adjusting the position of a navigation antenna and can be used to create electronic maps of agricultural lands when driving around them on the ground using vehicles.

State of the art

A device for digitizing agricultural land from the Agricon company is known, which includes a support frame mounted on the open surface of the vehicle (hood, roof), to which a rod is rigidly attached, oriented 90° towards the movement of the vehicle, with the orientation to the right or the left side is performed manually by turning the frame before starting work, and at the end of the rod there is a platform for installing a navigation antenna (see www.agrofys.ru).

The disadvantages of such a device are the impossibility of automatically adjusting the position of the navigation antenna depending on the constantly changing border of digitized agricultural land, which leads to a large error when performing work, as well as the impossibility of transferring the navigation antenna to the working position from the transport position and back while driving without stopping the vehicle.

A rotary support device is known for automatically adjusting the position of a GPS antenna, containing a support frame with a rotary disk mounted in bearing units and rotated by an electric motor, on which a fixed rod is placed, inside of which, using a lead nut and a lead screw rotated by an electric motor of the stationary rod, a movable solid rod moves a rod with a platform attached to its end with a GPS antenna and a Laser pilot, connected by wires to a control device located in the vehicle. (see utility model patent RU No. 131240, IPC H01Q 3/08, publ. 08/10/2013, bulletin 22).

The disadvantages of this device are the insufficient reach of the moving rod with a GPS antenna and a Laser pilot installed at its end, limited by the size of the fixed rod, which leads to the need to position the vehicle when moving in close proximity to the border of the digitized area, resulting in a risk of collision with possible obstacles.

The closest in technical essence and the achieved positive effect and accepted by the authors as a prototype is a device for automatically adjusting the position of a GPS antenna, containing a support frame made of longitudinal and transverse beams rigidly attached, by a fastening mechanism, to the vehicle and a movable frame made of rigidly attached to each other upper and lower jumpers with vertical posts, with a rotating beam installed on the upper jumper with an electric linear mechanism with a retractable rod and a platform for installing a GPS antenna and a Laser pilot, which rotates using an electric gear motor mounted on the underside of the upper jumper of the mobile frame, which moves along round rods installed in stops on the upper sides of the transverse beams of the supporting frame and guides on the internal parts of the vertical posts of the movable frame, which moves when the gear wheel of an electric motor - gearbox, located on the upper part of the lower jumper of the movable frame, is rotated in engagement with a gear bar mounted on the inner upper part of the cross beam of the support frame, electric motors - gearboxes for rotation of the gear wheel and rotation of the rotary beam, as well as an electric linear mechanism with a retractable rod are connected to a control device located in the vehicle (see. patent for invention RU No. 2725637, IPC H01Q 3/08, publ. 07/03/2020, bulletin. No. 19).

The disadvantage of this device is the high requirements for the accuracy of manufacturing and installation of the wheel-bar gear transmission, the impossibility of smooth movement of the movable frame in the event of abrasive wear of the wheel-bar gear transmission.

Disclosure of the Invention

The objective of the present invention is to develop a device for automatically moving the navigation antenna for digitizing terrain when performing the workflow of electronic terrain mapping over the border of the digitized area, which has the ability to automatically move the position of the navigation antenna, reliability and stability of the workflow, increasing the accuracy of digitization of agricultural land and speed, as preparing equipment and directly carrying out work without stopping the movement of the vehicle.

The technical result that can be achieved using the proposed utility model boils down to the possibility of automatically moving the navigation antenna, which is placed above the boundary of the digitized area, regardless of the movement of the vehicle, thereby increasing the accuracy of digitizing agricultural land and the speed of preparing equipment and carrying out work without stopping traffic vehicle when performing the electronic mapping workflow of agricultural land over the border of the digitized area.

The technical result is achieved using a device for automatically moving a navigation antenna for terrain digitization, including a support frame made of rigidly interconnected longitudinal and transverse beams with a mechanism for attaching to the vehicle and a movable frame made of upper and lower jumpers, vertical posts rigidly attached to each other, with a rotating beam installed on the upper jumper with an electric linear mechanism with a retractable rod and a platform for installing a navigation antenna and a Laser pilot, which rotates using an electric gear motor mounted on the underside of the upper jumper of a movable frame, which moves along round rods, installed in stops on the outer sides of the transverse beams of the support frame and guides on the inner sides of the vertical posts of the movable frame and its movement mechanism, including a gear motor with a drive sprocket, located together with guide sprockets on the support plate and a chain rigidly fixed on one side to the support on the upper middle part of the longitudinal beam, and on the other is also connected to the support on the upper middle part of the opposite longitudinal beam, through a tension spring, electric gear motors for rotation of the drive sprocket and rotary beam, as well as an electric linear mechanism with a retractable rod are connected to the control device located in the vehicle.

Brief description of drawings

In fig. 1 - a device for automatically moving a navigation antenna to digitize the area is given, general view;

In fig. 2 - the same general view in the working position on the vehicle;

In fig. 3 - the same general view in the transport position on the vehicle;

In fig. 4 - the same mechanism for moving the movable frame;

In fig. 5 - the same mechanism for rotating the rotary beam.

Carrying out the invention

The device for automatically moving the navigation antenna using the fastening mechanism 1 is installed on the vehicle 2 and includes a support frame of rigidly interconnected longitudinal 3, 4 and transverse 5, 6 beams, on which stops 7 are located on the outer side along the edges, between which a a rod 8 of round cross-section, secured on both sides with nuts 9 and a movable frame (not indicated in the figure), made of lower and upper jumpers 10 and 11, respectively, and racks 12 rigidly connected to each other, fixed on the inside with guides 13, in which are provided through holes (not indicated in the figure) of circular cross-section for movement along the rod 8. On the upper part of the lower jumper 10 there is a support frame 14, on which a gear motor 15 is mounted with a drive sprocket 16 on the shaft? and rotating guide sprockets 17, connected by a chain 18, one end of which is rigidly attached to the rack 19 on the upper middle part of the longitudinal beam 4, and the second end is also fixed through the tension spring 20, to prevent sagging of the chain, on the rack 21 on the opposite longitudinal beam 3 in middle upper part. Limit switches 22 are attached to the outer parts of the transverse front and rear beams 5 and 6, respectively.

On the lower side of the upper jumper 11 in the middle part, with the help of bolts 23, an electric motor - gearbox 24 is attached, the shaft 25 of which passes through bearings 26, fixed in the sleeve 27, the splined end of which is inserted into the spline sleeve 28 of the rotary beam 29 and secured with a nut 30. Between washers 31 and 32 are installed by the motor-gearbox 24, the upper jumper 11 and the rotary beam 29.

An electric linear mechanism 33 is attached to the rotary beam 29, with a retractable rod 34, driven by an electric motor - gearbox 35, a rotating screw 36 and a nut 37. At the end of the retractable rod 34 there is a platform 38, on which the navigation antenna 39 and Laser are located - pilot (sonar) 40. Navigation antenna 39, Laser pilot (sonar) 40, electric gear motors 15, 24 and 35 are connected by electric wires 41 to a control device 42 located in the cabin of the vehicle 2.

The device for automatically adjusting the position of the navigation antenna operates as follows.

Before starting work, using the fastening mechanism 1 of the longitudinal beams 3 and 4, fastened by the transverse front and rear beams 5 and 6, respectively, the support frame is fixed on the open surface of the vehicle 2. Depending on the location of the border of the terrain being digitized, a movable frame from the bottom, the upper jumpers 10 and 11, respectively, and the racks 12 moves to the right or left as a result of the incoming signal through electrical wires 41 from the control device 42 located in the cabin of the vehicle 2, depending on the location of the border of the digitized area. As a result of the rotation of the drive sprocket 16 on the shaft of the electric motor - gearbox 15, mounted on the support frame 14, the chain 18 begins to move along the rotating guide sprockets 17, and as a result of the fact that the chain 18 is fixed at one end to the stand 19 in the middle upper part of the longitudinal beam 4, and the other, through a tension spring 20, is attached to the rack 21 on the opposite longitudinal beam 3, in its middle part, the movable frame begins to move in one direction or the other. The movable frame, without distortions, moves evenly along the guides 13 along the rod 8, fixed in the stops 7 with nuts 9. Having reached the extreme position, the racks 12 press the limit switches 19, thereby opening the electrical circuit and the rotation of the shaft of the electric motor - gearbox 15 stops, the signal through the electrical wires 41 is supplied to the control and control device 42 and the moving frame stops, also a signal is received through the electrical wires 41 from the control and control device 42 located in the cabin of the vehicle 2 and the shaft 25 of the electric motor - gearbox 24, rigidly attached through washers 31 and 32 with bolts 23, rotates in bearings 26 located in the upper bridge 11, rigidly fixed to the sleeve 27, together with the splined sleeve 28, the rotary beam 29 begins to rotate, with the splined sleeve 28 rigidly fixed in it, using splined connections on the shaft 25 and a pressed nut 30. Having reached angle of 90 degrees, the rotation of the shaft 25 of the electric motor-gearbox 24 stops and the rotary beam 29 takes a perpendicular position with respect to the movement of the vehicle 2. To further increase the reach of the navigation antenna 39 and the Laser pilot (sonar) 40, mounted on the platform 38 of the retractable rod 34 , the electric gear motor 35 of the electric linear mechanism 33 also receives a signal via electrical wires 41 from the control device 42 located in the cabin of the vehicle 2 and with the help of a rotating screw 36 and a nut 37, the retractable rod 34 extends and occupies the required position. Depending on the presence of obstacles, the Laser pilot (sonar) 40 receives the reflected signal, sends it through electrical wires 41 to the control device 42, where it is processed and the signal is sent to electric gear motors 15, 24 and 35, which rotate to place the navigation antenna 39 above the border of the digitized area, avoiding damage from interaction with an obstacle.

After finishing the work, signals are sent to the electric motors - gearboxes 15, 24 and 35, the working parts move back and the device is transferred to the transport position.

Compared to the prototype and other technical solutions, the utility model has the following advantages:

- the smoothness of movement of the movable frame increases, which affects the stability and reliability of the work process.

Thus, the claimed device for automatically adjusting the position of a navigation antenna for terrain digitization provides increased accuracy of digitization of agricultural land, increased reliability and stability of the workflow.

Claims (3)

1. A device for automatically moving a navigation antenna for terrain digitization, containing a support frame with a mechanism for attaching to a vehicle, a movable frame with a rotating beam, an electric linear mechanism with a retractable rod and a platform for installing a navigation antenna and a Laser pilot, a control device, mechanism for moving the movable frame from an electric motor-gearbox on a plate with a gear wheel and a toothed bar underneath, mounted on the inner upper part of the transverse beam of the support frame, characterized in that the mechanism for moving the movable frame consists of a motor-gearbox with a sprocket mounted on a shaft on a support plate, with guide rotating sprockets, which are connected by a chain attached to supports on the longitudinal beams. 2. A device for automatically adjusting the position of the navigation antenna for terrain digitization according to claim 1, characterized in that the support plate is installed in the central part of the lower jumper of the movable frame, the supports for attaching the chain are installed in the central upper part of the longitudinal beams. 3. A device for automatically adjusting the position of a navigation antenna for digitizing terrain according to claim 1, characterized in that the chain is rigidly attached at one end to a support located on the longitudinal beam, and at the other end is attached to a support located on the opposite beam through a tension spring.