CN203400804U - Rotary connector for pesticide spraying system of center pivot type sprinkler - Google Patents

Abstract

The utility model relates to a rotary connector used for a spraying system of a central pivot type sprinkling irrigation machine, relating to a rotary connector. In order to solve the problem that the rotating connector of the spraying system of the central pivot type large-scale sprinkler spraying machine realized by the hose is inconvenient to use and the circulation of the liquid medicine is easily affected after being deformed. The lower end surface of its upper end cover is provided with a cylindrical groove, and the outer radius of the groove is smaller than the radius of the upper end cover; the upper end cover and the lower end cover are provided with coaxial shaft holes with the same radius, and the longitudinal section of the pipe body is an inverted "convex" character. Type, the outer wall of the notch of the cylindrical groove is closely connected with the inner ring of the first bearing, the inner ring of the first bearing is closely connected with the inner wall of the upper end of the pipe body, and the inner wall of the protruding part of the lower end of the pipe body is connected with the outer ring of the second bearing connection, the radius of the inner ring of the second bearing is equal to the radius of the shaft hole, the lower end cover and the lower port of the tube body are fixed as one, and the drug outlet tube interface provided at the upper end cover communicates with the drug inlet tube interface provided at the lower end of the tube body. It is used to connect the medicine inlet pipeline and the medicine outlet pipeline of the medicine spraying system.

Description

Rotary Couplings for Pivot Spray Systems

technical field

The utility model relates to a rotary connector, in particular to a rotary connector used in the medicine spraying system of a sprinkler irrigation machine.

Background technique

The electric-driven center-pivot large-scale sprinkler (hereinafter referred to as the center-pivot type sprinkler) and its derivatives have broad application prospects. Especially in recent years, large-scale sprinkler irrigation machines have been used on a large scale in the construction of farmland water conservancy to ensure food security. However, at present, the rotary connector of the central pivot type large-scale sprinkler equipped with the spraying system is realized by a hose. In actual use, the hose rotates with the central pivot of the central pivot type large sprinkler. Deformation occurs, and after the central pivot of the central pivot type large-scale sprinkler irrigation machine rotates clockwise for one circle, the hose needs to be disassembled to restore its deformation before continuing to use. The rotary connector of the spraying system of the sprinkler is inconvenient to use and is likely to affect the circulation of the liquid medicine after being deformed.

Utility model content

The purpose of this utility model is to solve the problem that the rotary connector of the spraying system of the central pivot type large sprinkler irrigation machine realized by the hose is inconvenient to use and easily affects the circulation of the liquid medicine after being deformed. The utility model provides a A rotary connector for a center pivot type sprinkler spraying system.

The utility model is a rotary connector for the spraying system of a central pivot type sprinkler irrigation machine, which includes an upper end cover, a drug outlet pipe interface, a first bearing, a pipe body, a second bearing, a lower end cover, and a drug inlet pipe interface;

The lower end surface of the upper end cover is provided with a cylindrical groove, and the outer radius of the groove is smaller than the radius of the upper end cover;

The middle part of the upper end cover and the middle part of the lower end cover are provided with coaxial shaft holes with the same radius.

The longitudinal section of the pipe body is an inverted "convex" shape,

The outer wall of the notch of the cylindrical groove is closely connected with the inner ring of the first bearing,

The inner ring of the first bearing is closely connected with the inner wall of the upper end of the pipe body,

The inner wall of the protruding part at the lower end of the pipe body is connected to the outer ring of the second bearing, the radius of the inner ring of the second bearing is equal to the radius of the shaft hole,

The lower end cover and the lower port of the pipe body are fixed as one,

The upper end cover is provided with a drug outlet pipe interface,

A drug inlet tube interface is provided at the lower end of the tube body, and the drug outlet tube interface and the drug inlet tube interface are communicated through the tube body.

The utility model has the advantage that the utility model surrounds the center shaft of the central pivot type sprinkler irrigation machine through the shaft holes of the upper end cover and the lower end cover. The water inlet pipe interface port enters the water storage chamber. At this time, the central support shaft of the sprinkler is rotating; because the lower end surface of the pipe body of the present utility model has a second bearing that surrounds the central support shaft of the sprinkler, so although the central support shaft rotates, the utility model lower end cover, The position of the pipe body and the water inlet pipe interface fixed on the pipe body remains unchanged, that is, it does not rotate. The upper end cover of the utility model is connected with the pipe body through the second bearing. When the sprinkler rotates, the upper end cover and the central shaft of the sprinkler rotate at the same time, that is, the outlet pipe interface and the sprinkler rotate synchronously and concentrically, and the liquid medicine enters the medicine outlet pipeline from the outlet pipe interface to complete the spraying work. Therefore, the utility model solves the problem that the rotary connector of the spraying system of the central pivot type large-scale sprinkler irrigation machine realized by the hose is inconvenient to use and the problem that the circulation of the liquid medicine is easily affected after being deformed.

Description of drawings

Fig. 1 is the schematic diagram of the principle of the utility model in practical application.

Fig. 2 is a schematic structural view of the rotary connector used in the chemical spraying system of the central pivot type sprinkler irrigation machine described in the first embodiment of the present invention.

In Fig. 1 and Fig. 2, 1 is the drug delivery system, 2 is the central support, 3-1 is the drug inlet pipeline, 3-2 is the drug delivery pipeline, 5 is the central support shaft, 7 is the tower truck, 10 12 is the rotary connector described in the utility model, 13 is the sprinkling irrigation pipeline, 14 is the nozzle, 15 is the spraying pipe, 17 is the sprinkling irrigation pipe, 16 is the sprinkling irrigation nozzle, 18 is the upper end cover, and 19 is the outlet Drug tube interface, 20 is the first bearing, 21 is the tube body, 22 is the second bearing, 23 is the lower end cover, 24 is the drug inlet tube interface, 25 is the first mechanical seal, 26 is the second mechanical seal, 27 is the reservoir water room.

Detailed ways

Specific Embodiment 1: This embodiment is described in conjunction with FIG. 1 and FIG. 2. The rotary connector used for the spraying system of the central pivot type sprinkler irrigation machine described in this embodiment,

It includes an upper end cover 18, a drug outlet tube interface 19, a first bearing 20, a tube body 21, a second bearing 22, a lower end cover 23 and a drug inlet tube interface 24;

The lower end surface of the upper end cover 18 is provided with a cylindrical groove 18-1, and the outer radius of the groove is smaller than the radius of the upper end cover 18;

The middle part of the upper end cover 18 and the middle part of the lower end cover 23 are provided with coaxial shaft holes with the same radius,

The longitudinal section of the pipe body 21 is an inverted "convex" shape,

The outer wall of the notch of the cylindrical groove is closely connected with the inner ring of the first bearing 20,

The inner ring of the first bearing 20 is closely connected with the inner wall of the upper end of the pipe body 21,

The inner wall of the protruding part 21-1 at the lower end of the pipe body 21 is connected to the outer ring of the second bearing 22, the radius of the inner ring of the second bearing 22 is equal to the radius of the shaft hole,

The lower end cap 23 is fixed as one with the lower port of the pipe body 21,

The upper end cover 18 is provided with a drug outlet pipe interface 19,

The lower end of the tube body 21 is provided with a drug inlet tube interface 24 , and the drug outlet tube interface 19 communicates with the drug inlet tube interface 24 through the tube body 21 .

What the rotary connector in the spraying system of the existing center pivot type sprinkler irrigation machine adopts is a flexible pipe, and the flexible pipe connects the medicine inlet pipeline 3-1 and the medicine outlet pipeline 3-2, and along with the central pivot 5 rotates, the medicine inlet pipeline 3-1 does not rotate, and the medicine outlet pipeline 3-2 rotates, so the hose will be deformed, so the central shaft 5 needs to be dismantled every time the hose is rotated to make the hose Get back to normal, then install the flexible pipe to make the medicine inlet pipeline 3-1 communicate with the medicine outlet pipeline 3-2.

In this embodiment, the rotary connector used for the spraying system of the central pivot type sprinkler irrigation machine is passed through the shaft holes of the upper end cover and the lower end cover to make the utility model surround the central pivot of the central pivot type sprinkler irrigation machine, In this embodiment, the upper end cover, the first bearing, the pipe body, the second bearing and the lower end cover form a water storage chamber 27 . When the central shaft of the sprinkler rotates, it drives the upper end cover and the outlet pipe interface arranged on the upper end cover to rotate, and the pipe body is connected with the outer edge of the cylindrical groove of the upper end cover through the first bearing, so that the pipe body is fixed. The water inlet pipe interface at the lower end of the body does not rotate, and because the lower end surface of the pipe body of the present invention has a second bearing that surrounds the central support shaft of the sprinkler, so although the central support shaft rotates, the lower end cover of the utility model, the pipe body The position of the interface with the water inlet pipe fixed on the pipe body remains unchanged. Thereby realizing that the water inlet pipe interface does not move and the water outlet pipe interface rotates so that the spraying system performs large-scale rotary spraying.

The medicine inlet pipeline 3-1 is connected to the water inlet pipe interface, and the medicine outlet pipeline 3-2 is connected to the water outlet pipe interface;

When the chemical spraying system of the central pivot type sprinkler irrigation machine works, the chemical liquid enters the water storage chamber 27 from the water inlet pipe interface.

When the sprinkler is working in rotation, that is, the outlet pipe interface and the sprinkler are synchronously and concentrically rotated, and the liquid medicine enters the medicine outlet pipeline from the water outlet pipe interface to complete the spraying work. Specific Embodiment 2: This embodiment is described in conjunction with FIG. 2 . This embodiment is a further limitation of the rotary connector used in the spraying system of the central pivot type sprinkler irrigation machine described in the specific embodiment 1. The first bearing 20 A first mechanical seal 25 is provided between the upper end cover 18 and a second mechanical seal 26 is provided between the second bearing 22 and the lower end cover 23 .

Claims (2)

1. for center pivot sprinkling machine, spray the rotary connector of medicine system, it is characterized in that, it comprises upper end cover (18), drug discharging tube interface (19), clutch shaft bearing (20), body (21), the second bearing (22), bottom end cover (23) and drug-feeding tube interface (24);

The lower surface of upper end cover (18) is provided with cylindrical groove (18-1), and the outer radius of described groove is less than the radius of upper end cover (18);

The middle part of the middle part of upper end cover (18) and bottom end cover (23) is equipped with coaxial and the identical axis hole of radius,

The longitudinal section of described body (21) is inverted " protruding " font,

The notch outer wall of described cylindrical groove is closely connected with the inner ring of clutch shaft bearing (20),

The inner ring of described clutch shaft bearing (20) is closely connected with the inwall of the upper end of body (21),

The inwall of the projection (21-1) of body (21) lower end is connected with the outer ring of the second bearing (22), and the inner ring radius of described the second bearing (22) equates with the radius of described axis hole,

Bottom end cover (23) is fixed as one with the lower port of body (21),

Described upper end cover (18) locates to be provided with drug discharging tube interface (19),

The lower end of described body (21) is provided with drug-feeding tube interface (24), and described drug discharging tube interface (19) and drug-feeding tube interface (24) are communicated with by body (21).

2. the rotary connector for center pivot sprinkling machine spray medicine system according to claim 1, it is characterized in that, between described clutch shaft bearing (20) and upper end cover (18), mechanical seal is set, between described the second bearing (22) and bottom end cover (23), mechanical seal is set.

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