Front folding arm of spraying machine

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a front-mounted folding arm of a spraying machine, which comprises a fixing frame fixedly mounted at the front end of a frame of the spraying machine, driving rotary arms symmetrically hinged to the left end and the right end of the fixing frame, driven rotary arms hinged to the tail ends of the driving rotary arms, and hinging mechanisms arranged at the hinging positions of the driven rotary arms and the driving rotary arms. A connecting arm hinged to the fixing frame is hinged to the hinge mechanism. According to the front-mounted folding arm of the spraying machine, the three-section type folding arm is large in spraying area; the structure is simple, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a front-mounted folding arm of a sprayer. Background Art

[0002] A sprayer is a device that converts liquid into fine mist droplets and is widely used in agriculture, gardening, cleaning, disinfection, and other fields. It can be used to spray pesticides, fertilizers, insecticides, etc. to improve crop growth and protection. Sprayers are an important type of agricultural machinery for plant protection.

[0003] At present, the spray arms of sprayers are mostly foldable, which can save space, improve flexibility and reduce the risk of damage while ensuring spraying efficiency and convenient storage. The most common foldable arms of existing sprayers are two-stage structures, while the three-stage structure is achieved by two sets of drive cylinders or gear meshing. It can be seen that:

[0004] 1. The conventional two-stage sprayer has a folding arm, and the spraying area is small after it is unfolded;

[0005] 2. The conventional three-section sprayer folding arm is complex and bulky. Utility Model Content

[0006] In order to solve the technical problems existing in the background technology, the utility model provides a front-mounted folding arm of a sprayer. The three-section folding arm has a large spraying area and a simple structure, which is convenient for repair and maintenance.

[0007] The technical solution adopted by the present invention is:

[0008] A front-mounted folding arm for a sprayer, comprising:

[0009] A fixing frame is fixedly mounted on the front end of the sprayer frame, and active swing arms are symmetrically hingedly provided at the left and right ends of the fixing frame. A driven swing arm is hingedly provided at the end of the active swing arm. An articulated mechanism is provided at the hinge of the driven swing arm and the active swing arm, and a connecting arm hingedly provided on the articulated mechanism and hingedly connected to the fixing frame.

[0010] Furthermore, the rear end of the fixing frame is provided with a mounting lug protruding from the rear end thereof for fixing to the front end of the sprayer frame;

[0011] The front end of the fixing frame is protruding with a drive cylinder hinge ear and an extension seat. The drive cylinder hinge ears are symmetrically arranged on the left and right sides of the front end of the fixing frame and are respectively hinged with the drive cylinder. The extension seat is used to hinge the connecting arm.

[0012] Furthermore, the active rotary arm is configured as a frame structure;

[0013] An inner hinge seat hinged to the driving cylinder is provided on the active swing arm.

[0014] Furthermore, the cylinder of the driving cylinder is hinged to the hinged ear of the driving cylinder, and the stroke end of the driving cylinder is hinged to the inner hinge seat;

[0015] The drive cylinder is connected to the hydraulic control system of the sprayer.

[0016] Furthermore, the hinge mechanism includes:

[0017] An outer hinge seat fixedly connected to the end of the active swing arm, wherein the outer hinge seat is fixedly provided with an inner lug, and the inner hinge arm is hingedly provided on the inner lug;

[0018] An outer lug fixedly connected to a driven swing arm hinged at one end of the driving swing arm, wherein an outer hinged arm is hingedly provided on the outer lug;

[0019] The inner hinged arm and the outer hinged arm are hinged to each other, and their hinge axes are hinged to the connecting arm.

[0020] Furthermore, a hanging ear is provided on the driven swing arm at one end hinged to the active swing arm, which protrudes upwards and is used to be snap-fitted to the side of the sprayer frame after being folded.

[0021] Furthermore, the inner hinged arm and the outer hinged arm are arranged in a curved shape, and the inner concave surfaces of the curved portions of the two are arranged opposite to each other.

[0022] Furthermore, nozzle groups are fixedly arranged at intervals on the active rotary arm and the driven rotary arm.

[0023] Furthermore, the length of the nozzle group connecting pipe at the hinge between the fixing frame and the active rotary arm is redundantly set;

[0024] The length of the nozzle group connecting pipe at the hinge between the active rotary arm and the driven rotary arm is redundantly set.

[0025] The advantages of the device of this utility model are:

[0026] The driving cylinder is used to rotate the active arm relative to the fixed frame. At the same time, the hinge mechanism and the driven arm are used to rotate the driven arm relative to the active arm. This allows the active and driven arms to extend and fold. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation of the present utility model, the following will briefly introduce the drawings required in the specific implementation. The drawings in the following description are implementations of the present utility model.

[0028] Figure 1 This is a general three-dimensional schematic diagram of a front-mounted folding arm of a sprayer provided by an example of the utility model;

[0029] Figure 2 This is an example of the utility model Figure 1 A partial enlarged schematic diagram of part A;

[0030] Figure 3 This is an example of the utility model Figure 1 A partial enlarged schematic diagram of part B;

[0031] Figure 4 This is an example of the utility model Figure 1 A partial enlarged schematic diagram of part C in the middle;

[0032] Figure 5 This is an example of the utility model Figure 1 A partial enlarged schematic diagram of part D in the middle.

[0033] In the picture:

[0034] 1. Fixed frame, 10. Driving cylinder, 11. Extension seat,

[0035] 2. Active swing arm, 20. Internal hinge seat,

[0036] 3. Driven arm,

[0037] 4. Connecting arm,

[0038] 5. Articulated mechanism, 50. External articulated seat, 51. Internal lug, 52. Internal articulated arm, 53. External lug, 54. External articulated arm. DETAILED DESCRIPTION

[0039] In order to more clearly and specifically illustrate the specific implementation objectives and implementation methods of the present utility model, the following is a complete description of the technical solution of the present utility model with reference to the accompanying drawings. The described embodiments are only part of the embodiments of the present utility model, not all of them. Without inventive work, all other embodiments based on the embodiments described in the present utility model fall within the scope of protection of the present utility model.

[0040] A sprayer front folding arm, such as Figure 1 Shown, including:

[0041] like Figure 1 、 Figure 2 As shown, a fixing bracket 1 is fixedly mounted on the front end of the sprayer frame, and a mounting lug protruding from the rear end of the fixing bracket 1 is provided for fixing to the front end of the sprayer frame; a drive cylinder hinge lug and an extension seat 11 are protruding from the front end of the fixing bracket 1. The drive cylinder hinge lugs are symmetrically arranged on the left and right sides of the front end of the fixing bracket 1 and are respectively hingedly provided with a drive cylinder 10. A connecting arm 4 is hingedly provided on the extension seat 11.

[0042] like Figure 2 、 Figure 3 As shown, active swing arms 2 are symmetrically hingedly provided at the left and right ends of the fixing frame 1 , and the active swing arms 2 are provided as a frame structure; an inner hinge seat 20 hingedly connected to the driving cylinder 10 is provided on the active swing arm 2 .

[0043] The drive cylinder 10 is connected to the hydraulic control system of the sprayer; the barrel of the drive cylinder 10 is hinged to the drive cylinder hinge ear, and the stroke end of the drive cylinder 10 is hinged to the inner hinge seat 20.

[0044] The driven arm 3 is hingedly mounted at the end of the active jib 2. Sprinkler groups are fixedly mounted at intervals on the active and driven jibs 2 and 3. The nozzle group connecting pipes at the hinged joint between the fixed frame 1 and the active jib 2 are redundantly lengthened. The nozzle group connecting pipes at the hinged joint between the active and driven jibs 2 and 3 are redundantly lengthened.

[0045] The hinged joint between the driven arm 3 and the active arm 2 is provided with an articulated mechanism 5. Figure 4 、 Figure 5 Shown, including:

[0046] An external hinged seat 50 is fixedly connected to the end of the active swing arm 2. An internal lug 51 is fixedly provided on the external hinged seat 50, and an internal hinged arm 52 is hingedly provided on the internal lug 51. The driven swing arm 3, which is hinged to one end of the active swing arm 2, has an upwardly protruding lug, which is used to fold and snap onto the side of the sprayer frame. An external lug 53 is fixedly connected to the lug, and an external hinged arm 54 is hingedly provided on the external lug 53. The internal and external hinged arms 52, 54 are curved with opposing concave surfaces and are hingedly connected to each other. Their hinge axes are hingedly connected to the connecting arm 4.

[0047] With the above embodiments of the present invention as inspiration, and through the above description, relevant personnel can make various changes and modifications without departing from the scope of the technical idea of ​​the present invention.

Claims

1. A front-mounted folding arm for a sprayer, characterized by: include: A fixing frame (1) is fixedly mounted on the front end of a sprayer frame, wherein active rotary arms (2) are symmetrically hingedly provided at the left and right ends of the fixing frame (1), a driven rotary arm (3) is hingedly provided at the end of the active rotary arm (2), a hinge mechanism (5) is provided at the hinged joint between the driven rotary arm (3) and the active rotary arm (2), and a connecting arm (4) hingedly provided on the hinge mechanism (5) and hingedly connected to the fixing frame (1).

2. A front-mounted folding arm for a sprayer according to claim 1, characterized in that: The rear end of the fixing frame (1) is protruded with a mounting lug for fixing to the front end of the sprayer frame; The front end of the fixing frame (1) is protruded with a driving cylinder hinge ear and an extension seat (11). The driving cylinder hinge ears are symmetrically arranged on the left and right sides of the front end of the fixing frame (1) and are respectively hingedly provided with a driving cylinder (10). The extension seat (11) is used for hinged connection of the connecting arm (4).

3. The front-mounted folding arm of a sprayer according to claim 2, characterized in that: The active rotary arm (2) is configured as a frame structure; An inner hinge seat (20) hinged to the driving cylinder (10) is provided on the active rotary arm (2).

4. The front-mounted folding arm of a sprayer according to claim 3, characterized in that: The cylinder body of the driving cylinder (10) is hinged to the driving cylinder hinge ear, and the stroke end of the driving cylinder (10) is hinged to the inner hinge seat (20); The driving cylinder (10) is connected to the hydraulic control system of the sprayer.

5. The front-mounted folding arm of a sprayer according to claim 3, characterized in that: The hinge mechanism (5) comprises: An outer hinge seat (50) fixedly connected to the end of the active swing arm (2), an inner lug (51) fixedly provided on the outer hinge seat (50), and an inner hinge arm (52) hingedly provided on the inner lug (51); An outer lug (53) fixedly connected to a driven swing arm (3) hinged to one end of the active swing arm (2), wherein an outer hinge arm (54) is hingedly provided on the outer lug (53); The inner hinged arm (52) and the outer hinged arm (54) are hinged to each other, and the hinge axes of the two are hinged to the connecting arm (4).

6. The front-mounted folding arm of a sprayer according to claim 5, characterized in that: A hanging ear is provided on the driven swing arm (3) at one end of which the driven swing arm (2) is hingedly connected. The hanging ear is used to be folded and then snap-connected to the side of the sprayer frame.

7. The front-mounted folding arm of a sprayer according to claim 5, characterized in that: The inner hinge arm (52) and the outer hinge arm (54) are arranged in a curved shape, and the inner concave surfaces of the curved parts of the two are arranged opposite to each other.

8. The front-mounted folding arm of a sprayer according to claim 5, characterized in that: The active rotary arm (2) and the driven rotary arm (3) are fixedly provided with nozzle groups at intervals.

9. The front-mounted folding arm of a sprayer according to claim 8, characterized in that: The length of the nozzle group connection pipe at the hinged joint between the fixed frame (1) and the active rotary arm (2) is redundantly arranged; The length of the nozzle group connection pipe at the hinged joint between the active rotary arm (2) and the driven rotary arm (3) is redundantly arranged.

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