Light mechanical arm special for agricultural machine

Abstract

The utility model discloses a special light mechanical arm for agricultural machinery, which relates to the field of agricultural machinery and comprises a power output shaft, the middle section of the power output shaft is rotatably connected with a power transmission shaft through a bearing, the tail end of the power transmission shaft is fixedly connected with a shell, an opening is formed in the shell, and a power input shaft is fixedly connected in the opening. The bottom end of the shell is fixedly connected with lifting installation pieces, the lifting installation pieces are two sets of metal pieces, the surface of each set of metal piece is provided with a penetrating opening, and the two sets of metal pieces are symmetrically fixed to the bottom end of the shell. According to the mechanical arm, through the design of a single-section arm integrated structure, a composite transmission system and a modularized tillage mechanism, the agricultural mechanical operation performance can be remarkably improved, the power transmission efficiency is effectively improved, meanwhile, energy consumption is reduced, various tillage tools can be rapidly replaced and installed through a built-in power output shaft, the tillage efficiency is improved, and the mechanical arm is suitable for popularization and application. The device can be used in complex scenes such as hard soil, paddy fields and sloping fields.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of agricultural machinery, concretely is a light -duty agricultural machinery special mechanical arm. BACKGROUND

[0002] The agricultural machinery mechanical arm is an automatic mechanical device applied to the agricultural field, which is driven by electricity, hydraulic pressure or air pressure and the like, simulates human arm action, has the characteristics of multi-joint and multi-degree of freedom, and can complete complex operations such as grabbing, moving, rotating and lifting.The core is to combine agricultural demand, perceive environmental information through a sensor, and realize accurate operation by cooperating with a control system, such as automatic picking, accurate spraying and intelligent sorting.

[0003] At present, the agricultural machinery mechanical arm still faces many technical bottlenecks in the driving structure and power output mode, and breakthrough improvement is urgently needed.Although the existing mechanical arm has initially realized multi-joint linkage and automatic control, its driving system is mostly dependent on a single power source (such as a hydraulic pump or a motor), which limits the functional adaptability of the output shaft.Most of the end effector interfaces of the mechanical arm are designed in a single way, and can only be compatible with specific specifications of agricultural tools, such as fixed-size picking clamps or seeders, which are difficult to replace quickly to adapt to diversified operation scenarios such as seeding, weeding and harvesting.This limitation seriously restricts the versatility and operation efficiency of the mechanical arm, and becomes a key obstacle to the large-scale application of intelligent agriculture. UTILITARY MODEL CONTENT

[0004] To achieve the above object, the utility model provides the following technical scheme: a light -duty agricultural machinery special mechanical arm, including power output shaft, the middle section of power output shaft is rotatably connected with power transmission shaft through bearing, the tail end of power transmission shaft is fixedly connected with shell.

[0005] Preferably, the shell is internally provided with an opening, and a power input shaft is fixedly connected in the opening.

[0006] Preferably, the lifting mounting piece is two groups of metal pieces, and each group of metal pieces is provided with a through opening on the surface, and the two groups of metal pieces are symmetrically fixed to the bottom end of the shell.

[0007] Preferably, the shell is fixedly connected with an adjusting lifting range rod on one side, and a rotating speed adjusting handle is rotatably connected to the top end of the shell.

[0008] Preferably, the power transmission shaft is provided with an opening at the top end, and a lubricating liquid input cover is threadedly connected in the opening.

[0009] Preferably, the power output shaft is a five-prism structure at both ends.

[0010] Preferably, a motor is mounted inside the tail end of the power transmission shaft, and a belt is sleeved between the output shaft of the motor and the power output shaft.

[0011] Preferably, a hydraulic rod is circumscribed between the lifting fittings, and the hydraulic rod is rotationally connected with the two groups of metal fittings of the lifting fittings.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The mechanical arm special for light agricultural machines has the single-joint arm integrated structure, the composite transmission system and the modularized tillage mechanism, can significantly improve the agricultural mechanical operation performance, the power transmission efficiency is effectively improved, the energy consumption is reduced, the built-in power output shaft can quickly replace various tillage tools, the tillage efficiency is improved, and the mechanical arm can be used in complex scenes such as hard soil, paddy field and slope. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described below in combination with the drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model Figure 1 It is another perspective structural schematic diagram.

[0017] As shown in the drawings: 1, power output shaft; 2, power transmission shaft; 3, lifting fitting; 4, adjust lifting range rod; 5, lubricating liquid input cover; 6, rotating speed adjusting handle; 7, power input shaft; 8, shell. DETAILED DESCRIPTION

[0018] In order to more clearly explain the overall concept of the utility model, the following will be described in detail in an exemplary manner in combination with the drawings of the specification.

[0019] Please refer to Figures 1 to 2 The utility model provides a technical scheme: a mechanical arm special for light agricultural machines, including power output shaft 1, power output shaft 1 middle segment is rotationally connected with power transmission shaft 2 through bearing, power transmission shaft 2 tail end is fixedly connected with shell 8;

[0020] The mechanical arm has the single-joint arm integrated structure, the composite transmission system and the modularized tillage mechanism, can significantly improve the agricultural mechanical operation performance: the power transmission efficiency is effectively improved, the energy consumption is reduced, the built-in power output shaft 1 can quickly replace various tillage tools, improves tillage efficiency, and can be used in complex scenes such as hard soil, paddy field and slope;

[0021] The shell 8 is internally provided with an opening, the opening is fixedly connected with the power input shaft 7, and the bottom end of the shell 8 is fixedly connected with the lifting mounting piece 3;

[0022] The lifting mounting piece 3 is two groups of metal pieces, and the surface of each group of metal pieces is provided with a penetrating opening, and the two groups of metal pieces are symmetrically fixed to the bottom end of the shell 8;

[0023] One side of the shell 8 is fixedly connected with the adjustment lifting range rod 4, and the top end of the shell 8 is rotatably connected with the rotating speed adjusting handle 6;

[0024] The top end of the power transmission shaft 2 is provided with an opening, and the opening is threadedly connected with the lubricating liquid input cover 5;

[0025] The power output shaft 1 is in five-prism structure at both ends;

[0026] The tail end of the power transmission shaft 2 is internally provided with a motor, and a belt is sleeved between the motor output shaft and the power output shaft 1;

[0027] The hydraulic rod is externally connected between the lifting mounting pieces 3, and the hydraulic rod is rotatably connected with the two groups of metal pieces of the lifting mounting piece 3;

[0028] When in use, the whole mechanical arm is installed at the front end of the agricultural machine by the power input shaft 7, and the built-in motor of the agricultural machine drives the power input shaft 7 to rotate, which drives the whole mechanical arm to swing up and down, so as to realize the up-and-down swinging of the power output shaft 1. The externally connected hydraulic rod is fixed between the lifting mounting pieces 3, and can play a stabilizing role when swinging up and down, avoiding dislocation caused by excessive rotation;

[0029] When in use, the motor installed at the tail end of the power transmission shaft 2 can drive the power output shaft 1 to rotate through the belt, and the power transmission shaft 2 is internally provided with a gear set to cooperate with the belt for use, so as to drive the belt for use. The design of the five-prism structure at both ends of the power output shaft 1 can externally connect various tillage tools, such as rotary tillage knives, furrow openers and soil loosening claws, which facilitates adjustment and installation according to actual use conditions;

[0030] After use, the lubricating liquid input cover 5 can be unscrewed to add lubricating oil, which is convenient for daily maintenance of the gear set;

[0031] In order to ensure the safety and stability of operation, the main body of the mechanical arm is made of high-strength lightweight alloy material, and the stress distribution is optimized through finite element analysis to reduce the influence of operation vibration on the structure. A multi-stage anti-loosening locking device is additionally arranged at the end of the horizontal shaft to ensure that the tillage mechanism does not displace or fall off during high-speed operation. At the same time, a damping buffer module is arranged at the connection between the engine and the transmission mechanism to further reduce energy loss and mechanical wear during power transmission;

[0032] The mechanical arm utilizes a modular design and power transmission optimization, significantly reduces the maintenance cost and operation complexity of traditional agricultural tools, and in actual application, users can quickly switch the tillage mode according to the requirements, for example, dry land rotary tillage, paddy field ditching or orchard soil loosening and the like, and greatly improves the agricultural production efficiency.

[0033] Those skilled in the art will understand that the above discussion of any of the embodiments is merely exemplary in nature and is not intended to imply that the scope of the present application includes only these examples; the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0034] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, and equivalents that fall within the spirit and scope of the present application are intended to be included within the scope of the present application.

Claims

1. A mechanical arm for light agricultural machines, characterized in that: Including power output shaft (1), the middle section of power output shaft (1) is rotatably connected with power transmission shaft (2) through bearing, and the tail end of power transmission shaft (2) is fixedly connected with shell (8).

2. The mechanical arm for light agricultural machines according to claim 1, characterized in that: The inside of the shell (8) is provided with an opening, and the opening is fixedly connected with a power input shaft (7); the bottom end of the shell (8) is fixedly connected with a lifting mounting piece (3).

3. The mechanical arm for light agricultural machines according to claim 2, characterized in that: The lifting mounting piece (3) is two groups of metal pieces, and the surface of each group of metal pieces is provided with a through opening; the two groups of metal pieces are symmetrically fixed to the bottom end of the shell (8).

4. The mechanical arm for light agricultural machines according to claim 3, characterized in that: One side of the shell (8) is fixedly connected with an adjusting lifting range rod (4), and the top end of the shell (8) is rotatably connected with a rotating speed adjusting handle (6).

5. The mechanical arm for light agricultural machines according to claim 4, characterized in that: The top end of the power transmission shaft (2) is provided with an opening, and the opening is threadedly connected with a lubricating liquid input cover (5).

6. The mechanical arm for light agricultural machines according to claim 5, characterized in that: Both ends of the power output shaft (1) are five-prism structures.

7. The mechanical arm for light agricultural machines according to claim 6, characterized in that: A motor is installed in the tail end of the power transmission shaft (2), and a belt is sleeved between the output shaft of the motor and the power output shaft (1).

8. The mechanical arm for light agricultural machines according to claim 7, characterized in that: Hydraulic rods are externally connected between the lifting mounting pieces (3), and the hydraulic rods are rotatably connected with the two groups of metal pieces of the lifting mounting pieces (3).

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