Plant protection machine rear spray rack main frame assembly

Abstract

The utility model discloses a main frame assembly of a rear spray rack of a crop protection machine, including a spray rod main frame and a floating frame connected to the upper part of the spray rod main frame; the lower parts of the left spray rod assembly and the right spray rod assembly are connected to the spray rod main frame through a spray rod deployment cylinder; the upper parts of the left spray rod assembly and the right spray rod assembly are connected to the floating frame through a spray rod tilt angle adjustment assembly, and the left spray rod assembly and the right spray rod assembly can adjust the tilt angle through the corresponding spray rod tilt angle adjustment assembly; a vibration reduction mechanism is arranged between the spray rod main frame and the floating frame, and a balancing mechanism is arranged in the floating frame. The main frame assembly of the utility model comprehensively optimizes the function and structural design, realizes the functions of automatic balancing, automatic vibration reduction and free adjustment and lifting of the spray rack; at the same time, it can avoid the problem of automatic folding or automatic unfolding of the spray rod caused by collision when obstacles cannot be avoided in time when encountering obstacles.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a main frame assembly suitable for a rear spraying frame of a plant protection machine. Background Art

[0002] With the popularization of mechanized operations in my country's agriculture, the use of agricultural machinery is becoming more and more common. Since the terrain of the working environment of agricultural machinery is relatively complex and there are few flat working conditions, agricultural machinery needs to have certain shock absorption and buffering functions.

[0003] The design of the spray rack in the prior art is not scientific enough, the structure is simple but the requirements for the lifting system are high, the installation and operation are inconvenient, and when the working site is uneven, the spray boom cannot automatically adjust the balance and vibration reduction, which often leads to damage to the spray boom, damage to the nozzle, and poor spray effect. In addition, when encountering obstacles, the spray boom cannot be avoided in time, which seriously affects the quality of the operation and ultimately leads to a serious impact on grain production.

[0004] Therefore, based on the above technical problems, technicians in this field urgently need to develop a main frame assembly of a rear spray rack for a 4-ton plant protection machine. Utility Model Content

[0005] The utility model aims to provide a main frame assembly of a rear spray frame of a plant protection machine, which realizes the functions of automatic balancing, automatic vibration reduction, and automatic adjustment of lifting and lowering of the sprayer, and effectively solves the problem of automatic folding or automatic unfolding of the spray rod when encountering obstacles and collisions that cannot be avoided in time.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a main frame assembly of a rear spray frame of a plant protection machine, the main frame assembly comprising:

[0008] boom main frame; and

[0009] A floating frame connected to the upper portion of the spray boom main frame;

[0010] The left and right sides of the spray bar main frame are respectively connected with a left spray bar assembly and a right spray bar assembly, and the lower parts of the left spray bar assembly and the right spray bar assembly are connected to the spray bar main frame through a spray bar deployment cylinder;

[0011] The upper parts of the left spray boom assembly and the right spray boom assembly are connected to the floating frame through a spray boom tilt angle adjustment assembly, and the left spray boom assembly and the right spray boom assembly can adjust the tilt angle through the corresponding spray boom tilt angle adjustment assembly;

[0012] A vibration reduction mechanism is arranged between the spray bar main frame and the floating frame, and a balancing mechanism is arranged inside the floating frame.

[0013] Further, the spray boom main frame is connected to the assembly portion of the floating frame via a floating mounting shaft;

[0014] The floating framework comprises:

[0015] a first frame proximate to one end of the boom main frame; and

[0016] A second frame away from one end of the spray boom main frame and located above the first frame;

[0017] The boom main frame has a column located inside the boom main frame, and the vibration reduction mechanism is connected between the second frame of the floating frame and the column of the boom main frame;

[0018] The balancing mechanism is arranged between the first frame and the second frame of the floating frame.

[0019] Furthermore, the vibration reduction mechanism comprises:

[0020] A damping spring integrated frame, wherein one end of the damping spring integrated frame close to the column is rotatably connected to the ear plate on the inner side of the column through a connecting rod; and

[0021] A plurality of damping springs arranged side by side on the damping spring integrated frame;

[0022] The damping spring extends obliquely from one end of the spray bar main frame to one end of the second frame of the floating frame, and the damping spring is connected to the ear plate of the second frame.

[0023] Furthermore, three floating rods are arranged between the first frame and the second frame, one end of the three floating rods is connected to the second frame, and the other end of the three floating rods is connected to the mounting seat of the second frame;

[0024] The floating rod on one side is rotatably connected to the spray rod main frame through a connecting rod.

[0025] Furthermore, the balancing mechanism is two groups of buffers arranged symmetrically, and each group of the buffers includes two buffers arranged side by side;

[0026] One end of the buffer is rotatably connected to the first frame, and the other end of the buffer is rotatably connected to the second frame.

[0027] Further, the left spray bar assembly and the right spray bar assembly each include a first spray bar section and a second spray bar section;

[0028] The cylinder bodies of the boom deployment cylinders on both sides are connected to the boom main frame, and the cylinder rods of the boom deployment cylinders extend toward the first section of the boom on the corresponding side and are connected to the first section of the boom;

[0029] The spray boom inclination angle adjustment assembly is connected to the upper portion of the first spray boom section on the corresponding side to adjust the inclination angle of the spray boom assembly on the corresponding side.

[0030] Furthermore, the spray boom tilt angle adjustment assembly includes:

[0031] An adjustment cylinder seat disposed on the first frame; and

[0032] An adjusting oil cylinder integrated in the adjusting oil cylinder seat, wherein the cylinder body of the adjusting oil cylinder is connected to the adjusting oil cylinder seat, and the cylinder rod of the adjusting oil cylinder extends toward the first section of the spray boom on the corresponding side and is connected to the first section of the spray boom;

[0033] The first frame has an adjustment slot at a position close to the first section of the spray rod, the vertical beam at one end of the first section of the spray rod that cooperates with the adjustment cylinder passes through the adjustment slot, and the horizontal beam at one end of the first section of the spray rod that cooperates with the adjustment cylinder is connected to the cylinder rod of the adjustment cylinder;

[0034] The regulating groove has a limiting member on one side of the cylinder body close to the regulating oil cylinder.

[0035] Furthermore, the spray boom deployment cylinder is connected to the first section of the spray boom via a ball joint connector to adapt to the adjustment cylinder driving the spray boom assembly to adjust the tilt angle.

[0036] In the above technical solution, the utility model provides a main frame assembly of the rear spraying frame of a plant protection machine, which has the following beneficial effects:

[0037] The main frame assembly of the utility model comprehensively optimizes the function and structural design, realizing the functions of automatic balancing, automatic vibration reduction and free adjustment and lifting of the spraying frame; at the same time, it can avoid the problem of automatic folding or automatic unfolding of the spraying rod caused by collision when obstacles cannot be avoided in time.

[0038] The main frame assembly of the utility model is designed with a spray boom tilt angle adjustment component, which can ensure that the spray boom drop fixing point remains unchanged when the spray boom is retracted, and there is no need to adjust the spray boom angles on both sides. When the side spray booms are retracted, the downward pressure and tilt angle are used to prevent the spray booms from automatically opening and tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0040] Figure 1 A schematic diagram of the structure of the main frame assembly of the rear spray rack of the plant protection machine provided by the embodiment of the utility model;

[0041] Figure 2 A schematic diagram of the structure of a spray bar assembly of a rear spray rack main frame assembly of a plant protection machine provided by an embodiment of the utility model;

[0042] Figure 3 A schematic structural diagram of a spray bar tilt angle adjustment component of a rear spray rack main frame assembly of a plant protection machine provided in an embodiment of the utility model.

[0043] Description of reference numerals:

[0044] 1. Spray boom main frame; 2. Floating frame; 4. Buffer; 5. Spray boom expansion cylinder; 6. Spray boom tilt angle adjustment assembly;

[0045] 101, pillar;

[0046] 201, first frame; 202, second frame; 203, floating rod; 204, mounting seat; 205, connecting rod; 206, floating mounting shaft;

[0047] 301, vibration damping spring integrated frame; 302, vibration damping spring;

[0048] 501, ball joint connector; 502, front and rear buffers;

[0049] 601, adjusting oil cylinder seat; 602, adjusting oil cylinder; 603, adjusting slot; 604, limiting member;

[0050] 701, left spray boom assembly; 702, right spray boom assembly; 703, first spray boom section; 704, second spray boom section. DETAILED DESCRIPTION

[0051] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0052] See also Figures 1 to 3 As shown;

[0053] This embodiment discloses a main frame assembly of a rear spray frame of a plant protection machine, and the main frame assembly includes:

[0054] A spray boom main frame 1; and

[0055] A floating frame 2 connected to the upper part of the spray boom main frame 1;

[0056] The left and right sides of the spray bar main frame 1 are respectively connected with a left spray bar assembly 701 and a right spray bar assembly 702, and the lower parts of the left spray bar assembly 701 and the right spray bar assembly 702 are connected to the spray bar main frame 1 through a spray bar deployment cylinder 5;

[0057] The upper parts of the left spray bar assembly 701 and the right spray bar assembly 702 are connected to the floating frame 2 through the spray bar tilt angle adjustment assembly 6, and the left spray bar assembly 701 and the right spray bar assembly 702 can adjust the tilt angle through the corresponding spray bar tilt angle adjustment assembly 6;

[0058] A vibration reduction mechanism is arranged between the spray boom main frame 1 and the floating frame 2 , and a balancing mechanism is arranged inside the floating frame 2 .

[0059] Specifically, the present embodiment discloses a main frame assembly capable of realizing automatic vibration reduction and automatic balancing of a spray boom main frame 1 and a floating frame 2; according to the structure, it can be known that the left spray boom assembly 701 and the right spray boom assembly 702 are connected to the two sides of the main frame assembly of the present embodiment, respectively, and the spray boom main frame 1 and the floating frame 2 of the present embodiment are connected to the spray boom assemblies on both sides through the spray boom deployment cylinder 5 and the spray boom tilt angle adjustment assembly 6, respectively, wherein the spray boom deployment cylinder 5 drives the spray boom assembly on the corresponding side to deploy or retract through the cylinder rod. A spray boom tilt angle adjustment assembly 6 is connected between the floating frame 2 and the spray boom assembly of the present embodiment to adjust the tilt angle of the corresponding spray boom assembly within a certain range through the spray boom tilt angle adjustment assembly 6; and the spray boom tilt angle adjustment assembly 6 of the present embodiment can constrain and limit the range of adjustment of the spray boom assembly tilt angle, thereby ensuring that it can fall into the designed position when reset.

[0060] In this embodiment, a vibration reduction mechanism and a balancing mechanism are designed between the spray bar main frame 1 and the floating frame 2. The vibration reduction mechanism can automatically achieve a vibration reduction effect during use, while the balancing mechanism can adjust the balance of the floating frame 2 through the buffer 4.

[0061] Preferably, the boom main frame 1 of this embodiment is connected to the assembly portion of the floating frame 2 via a floating mounting shaft 206;

[0062] Floating Framework 2 includes:

[0063] A first frame 201 close to one end of the boom main frame 1; and

[0064] A second frame 202 away from one end of the spray boom main frame 201 and located above the first frame 201;

[0065] The boom main frame 1 has a column 101 located inside it, and a vibration reduction mechanism is connected between the second frame 202 of the floating frame 2 and the column 101 of the boom main frame 1;

[0066] A balancing mechanism is provided between the first frame 201 and the second frame 202 of the floating frame 2 .

[0067] First, the present embodiment further defines the structure of the floating frame 2, which is divided into a first frame 201 located at the bottom and a second frame 202 located at the top; wherein the first frame 201 and the second frame 202 are connected to each other, and floating adjustment is achieved through a revolving pair. The vibration reduction mechanism of the present embodiment is connected between the boom main frame 1 and the floating frame 2, and the above-mentioned balancing mechanism is connected between the first frame 201 and the second frame 202 of the floating frame 2.

[0068] Preferably, the vibration reduction mechanism of this embodiment includes:

[0069] A damping spring integrated frame 301, wherein one end of the damping spring integrated frame 301 close to the column 101 is rotatably connected to the ear plate on the inner side of the column 101 through a connecting rod; and

[0070] A plurality of damping springs 302 arranged side by side on a damping spring integrated frame 301;

[0071] The damping spring 302 extends obliquely from one end of the boom main frame 1 to one end of the second frame 202 of the floating frame 2 , and the damping spring 302 is connected to the ear plate of the second frame 202 .

[0072] The present embodiment further defines the specific structure of the vibration reduction mechanism and the connection structure between the vibration reduction mechanism and the floating frame 2 and the spray boom main frame 1; the vibration reduction mechanism of the present embodiment is based on a vibration reduction spring integrated frame 301, on which four vibration reduction springs 302 are arranged side by side, and connecting components are designed on the spray boom main frame 1 and the second frame 202 of the floating frame 2, respectively, as the connection structure of the vibration reduction mechanism, and the vibration reduction spring integrated frame 301 of the vibration reduction mechanism is connected to the column 101 through a connecting rod, which is the connection end with the spray boom main frame 1; and one end of the vibration reduction spring 302 is connected to the second frame 202, so that autonomous vibration reduction can be achieved through the eight vibration reduction springs 302 during floating.

[0073] Preferably, the present embodiment further defines a connection structure between the first frame 201 and the second frame 202, which is mainly that three floating rods 203 are arranged between the first frame 201 and the second frame 202, one end of the three floating rods 203 is connected to the second frame 202, and the other end of the three floating rods 203 is connected to the mounting seat 204 of the second frame 202; the floating rod 203 on one side is rotatably connected to the spray rod main frame 1 through the connecting rod 205.

[0074] Preferably, this embodiment further defines the structure of the balancing mechanism and the connection structure between the balancing mechanism and the floating frame 2; specifically: the balancing mechanism is two symmetrically arranged buffer groups, each buffer group includes two buffers 4 arranged side by side; wherein, one end of the buffer 4 is rotatably connected to the first frame 201, and the other end of the buffer 4 is rotatably connected to the second frame 202.

[0075] Preferably, the left spray bar assembly 701 and the right spray bar assembly 702 of this embodiment both include a first spray bar section 703 and a second spray bar section 704;

[0076] The cylinder bodies of the boom deployment cylinders 5 on both sides are connected to the boom main frame 1, and the cylinder rods of the boom deployment cylinders 5 extend toward the first boom section 703 on the corresponding side and are connected to the first boom section 703;

[0077] The spray boom inclination angle adjustment assembly 6 is connected to the upper portion of the first spray boom section 703 on the corresponding side to adjust the inclination angle of the spray boom assembly on the corresponding side.

[0078] The spray bar tilt angle adjustment assembly 6 of this embodiment includes:

[0079] An adjustment cylinder seat 601 disposed on the first frame 201; and

[0080] An adjusting cylinder 602 integrated in the adjusting cylinder seat 601, a cylinder body of the adjusting cylinder 602 connected to the adjusting cylinder seat 601, a cylinder rod of the adjusting cylinder 602 extending toward a first spray bar 703 on a corresponding side and connected to the first spray bar 703;

[0081] The first frame 201 has an adjustment slot 603 near the first section of the spray rod 703. The vertical beam at one end of the first section of the spray rod 703 and the adjustment cylinder 602 passes through the adjustment slot 603, and the horizontal beam at one end of the first section of the spray rod 703 and the adjustment cylinder 602 is connected to the cylinder rod of the adjustment cylinder 602.

[0082] A limiting member 604 is provided on one side of the adjusting groove 603 close to the cylinder body of the adjusting oil cylinder 602 .

[0083] In order to adapt to the adjustment of the inclination angle of the spray rod assembly, the spray rod deployment cylinder 5 of this embodiment is connected to the first section of the spray rod 703 through a ball joint connector 501 to adapt to the adjustment of the inclination angle of the spray rod assembly 6 driven by the cylinder.

[0084] This embodiment designs a structure capable of driving the adjustment of the inclination angle of the spray rod assembly, namely the above-mentioned spray rod inclination angle adjustment assembly 6. The spray rod inclination angle adjustment assembly 6 of this embodiment is connected to the body of the first section spray rod 703 through the cylinder rod of the adjustment oil cylinder 602, and the first section spray rod body part passes through the adjustment slot 603. With the extension and retraction of the cylinder rod of the adjustment oil cylinder 602, the inclination angle of the spray rod assembly can be finely adjusted within the adjustment range of the adjustment slot 603. Due to the existence of the adjustment slot 603 and the limiter 604, the range of motion of the spray rod assembly can be restricted, and the spray rod assembly can also be returned to its original position when resetting.

[0085] In the above technical solution, the utility model provides a main frame assembly of the rear spraying frame of a plant protection machine, which has the following beneficial effects:

[0086] The main frame assembly of the utility model comprehensively optimizes the function and structural design, realizing the functions of automatic balancing, automatic vibration reduction and free adjustment and lifting of the spraying frame; at the same time, it can avoid the problem of automatic folding or automatic unfolding of the spraying rod caused by collision when obstacles cannot be avoided in time.

[0087] The main frame assembly of the utility model is designed with a spray boom tilt angle adjustment component 6, which can ensure that the spray boom drop fixing point remains unchanged when the spray boom is retracted, and there is no need to adjust the spray boom angles on both sides. When the side spray booms are retracted, the downward pressure and tilt angle are used to prevent the spray booms from automatically opening and tilting.

[0088] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. The main frame assembly of the rear spraying frame of the plant protection machine is characterized by: The main frame assembly comprises: A boom main frame (1); and A floating frame (2) connected to the upper part of the spray boom main frame (1); The left and right sides of the spray bar main frame (1) are respectively connected to a left spray bar assembly (701) and a right spray bar assembly (702), and the lower parts of the left spray bar assembly (701) and the right spray bar assembly (702) are connected to the spray bar main frame (1) via a spray bar deployment cylinder (5); The upper parts of the left spray boom assembly (701) and the right spray boom assembly (702) are connected to the floating frame (2) via a spray boom tilt angle adjustment assembly (6), and the left spray boom assembly (701) and the right spray boom assembly (702) can adjust the tilt angle via the corresponding spray boom tilt angle adjustment assembly (6); A vibration reduction mechanism is provided between the spray bar main frame (1) and the floating frame (2), and a balancing mechanism is provided inside the floating frame (2).

2. The rear spray rack main frame assembly of the plant protection machine according to claim 1 is characterized in that: The spray boom main frame (1) is connected to the assembly portion of the floating frame (2) via a floating mounting shaft (206); The floating frame (2) comprises: a first frame (201) close to one end of the spray boom main frame (1); and A second frame (202) away from one end of the spray boom main frame (1) and located above the first frame (201); The spray boom main frame (1) has a column (101) located inside the spray boom main frame, and the vibration reduction mechanism is connected between the second frame (202) of the floating frame (2) and the column (101) of the spray boom main frame (1); The balancing mechanism is arranged between the first frame (201) and the second frame (202) of the floating frame (2).

3. The rear spray rack main frame assembly of the plant protection machine according to claim 2, characterized in that: The vibration reduction mechanism comprises: A vibration-damping spring integrated frame (301), wherein one end of the vibration-damping spring integrated frame (301) close to the column (101) is rotatably connected to an ear plate on the inner side of the column (101) via a connecting rod; and A plurality of vibration-damping springs (302) arranged side by side on the vibration-damping spring integrated frame (301); The damping spring (302) extends obliquely from one end of the spray boom main frame (1) to one end of the second frame (202) of the floating frame (2), and the damping spring (302) is connected to the ear plate of the second frame (202).

4. The rear spray rack main frame assembly of the plant protection machine according to claim 2, characterized in that: Three floating rods (203) are arranged between the first frame (201) and the second frame (202), one end of the three floating rods (203) is connected to the second frame (202), and the other end of the three floating rods (203) is connected to the mounting seat (204) of the second frame (202); The floating rod (203) on one side is rotatably connected to the spray rod main frame (1) via a connecting rod (205).

5. The rear spray rack main frame assembly of the plant protection machine according to claim 2 or 3, characterized in that: The balancing mechanism comprises two groups of buffers arranged symmetrically, each group of the buffers comprising two buffers (4) arranged side by side; One end of the buffer (4) is rotatably connected to the first frame (201), and the other end of the buffer (4) is rotatably connected to the second frame (202).

6. The rear spray rack main frame assembly of the plant protection machine according to claim 2, characterized in that: The left spray bar assembly (701) and the right spray bar assembly (702) both include a first spray bar section (703) and a second spray bar section (704); The cylinder bodies of the boom deployment cylinders (5) on both sides are connected to the boom main frame (1), and the cylinder rods of the boom deployment cylinders (5) extend toward the first boom section (703) on the corresponding side and are connected to the first boom section (703); The spray boom inclination angle adjustment assembly (6) is connected to the upper portion of the first spray boom section (703) on the corresponding side to adjust the inclination angle of the spray boom assembly on the corresponding side.

7. The rear spray rack main frame assembly of the plant protection machine according to claim 6, characterized in that: The spray boom tilt angle adjustment assembly (6) comprises: An adjusting cylinder seat (601) disposed on the first frame (201); and An adjusting oil cylinder (602) integrated in the adjusting oil cylinder seat (601), the cylinder body of the adjusting oil cylinder (602) being connected to the adjusting oil cylinder seat (601), and the cylinder rod of the adjusting oil cylinder (602) extending toward the first section of the spraying rod (703) on the corresponding side and being connected to the first section of the spraying rod (703); The first frame (201) has an adjustment slot (603) at a position close to the first section of the spray rod (703); the vertical beam at one end of the first section of the spray rod (703) and the adjustment cylinder (602) passes through the adjustment slot (603); and the horizontal beam at one end of the first section of the spray rod (703) and the adjustment cylinder (602) is connected to the cylinder rod of the adjustment cylinder (602); The regulating groove (603) is provided with a limiting member (604) on one side of the cylinder body close to the regulating oil cylinder (602).

8. The rear spray rack main frame assembly of the plant protection machine according to claim 7, characterized in that: The spray boom deployment cylinder (5) is connected to the first section of the spray boom (703) via a ball joint connector (501) to adapt to the adjustment cylinder (602) to drive the spray boom assembly to adjust its tilt angle.

Images