Mini-tiller reliability test device

Abstract

A mini-tiller reliability test device belongs to the technical field of agricultural machinery. The device comprises a belt type conveying belt used for conveying soil, a lifting mini-tiller fixing rack erected on one side of the belt type conveying belt and used for fixing a mini-tiller, and a soil gathering and dispersing device arranged on the other side of the belt type conveying belt and used for transferring the soil. And the liftable soil compaction roller is erected on the other side of the belt type conveying belt and is used for compacting the soil. According to the invention, the belt type conveyor belt is matched with the spiral auger to realize cyclic transmission of soil on the device, and the soil compactness is changed through the liftable soil pressing roller, so that the actual tillage environment of the mini-tiller is simulated, and finally, the mini-tiller is fixed at a proper position through the liftable mini-tiller fixing rack. According to the invention, the problem that the reliability test of the mini-tiller cannot be carried out is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery, and particularly relates to a reliability test device for a micro-tiller. Background Art

[0002] A micro-tiller is an agricultural machine used for soil tillage and loosening to improve soil structure and promote plant growth, playing a crucial role in the process of farmland tillage. The working intensity of a micro-tiller is generally relatively high, and various problems are inevitable during use, which have a greater impact on the farming efficiency, etc. Therefore, according to relevant requirements, a reliability evaluation of 18 hours of cumulative production verification is required before the use of a farming machine. However, there is currently no device specifically for the reliability test of the entire micro-tiller for the above-mentioned reliability evaluation. Existing devices only conduct separate reliability tests on key components such as blades, seriously affecting the promotion and identification work of micro-tillers. Summary of the Invention

[0003] Aiming at the above problems existing in the prior art, the purpose of the present invention is to provide a reliability test device for a micro-tiller, which realizes the reliability test of the continuous operation of the micro-tiller by cyclically preparing real tillage soil to simulate the real working scenario of the micro-tiller in the field, and solves the problem of the lack of a reliability test device during the promotion and identification of micro-tillers.

[0004] The present invention provides the following technical solutions:

[0005] A reliability test device for a micro-tiller includes a belt conveyor for transporting soil, a liftable micro-tiller fixing bench frame erected on one side of the belt conveyor for fixing the micro-tiller, a soil aggregation and dispersion device arranged on the other side of the belt conveyor for transporting the soil, and a liftable soil pressing roller erected on the other side of the belt conveyor for compacting the soil.

[0006] Further, the liftable micro-tiller fixing bench frame includes a fixing bench frame tabletop and its frame, which is controlled to lift by a scissor lift table. A universal ball double-pressure ring fixing device and a micro-tiller limit knife fixing device for fixing the micro-tiller handle fixing rod and the micro-tiller limit knife are arranged on the fixing bench frame tabletop and its frame.

[0007] Further, the belt conveyor includes a conveyor frame, and upper and lower layers of conveyors with opposite conveying directions are arranged on the conveyor frame. Conveyor soil baffles are arranged on each layer of conveyor.

[0008] Furthermore, the liftable soil compaction roller comprises a roller assembly and a lifting assembly for controlling the lifting of the roller assembly; the lifting assembly includes worm and worm gear elevators arranged on both sides of the conveyor belt, and the two worm and worm gear elevators are synchronously linked through a rotating shaft connecting rod, and a lead screw is fitted through each worm and worm gear elevator; the roller assembly includes two bearing seats respectively connected to the lead screws on both sides, and a roller is rotatably arranged between the two bearing seats, and the roller is located above the upper conveyor belt.

[0009] Furthermore, through slots for the two ends of the roller to pass through are formed in the soil baffle of the upper conveyor belt, and roller soil baffles are arranged at the through slots on the bearing seats.

[0010] Furthermore, the soil gathering and dispersing device includes a lower spiral auger and an upper spiral auger respectively corresponding to the lower conveyor belt and the upper conveyor belt, and the upper and lower spiral augers are connected through an inclined auger; the lower spiral auger is used for gathering and feeding the soil conveyed by the lower conveyor belt into the inclined auger, and the upper spiral auger is used for dispersing and conveying the soil conveyed through the inclined auger to the upper conveyor belt.

[0011] Furthermore, a soil inlet and a soil outlet are respectively arranged at the lower part and the upper part of the inclined auger; the spiral blades on both sides of the soil inlet of the lower spiral auger have opposite spiral directions for gathering the soil towards the soil inlet; the spiral blades on both sides of the soil outlet of the upper spiral auger have opposite spiral directions for dispersing the soil at the soil outlet to both sides.

[0012] By adopting the above technologies, compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1) The device of the present invention realizes the reliability test of the continuous operation of the micro-tiller by cyclically preparing real tillage soil to simulate the real working scenario of the micro-tiller in the field, and solves the problem of the lack of a reliability test device during the promotion and appraisal of the micro-tiller.

[0014] 2) The present invention can realize the cyclic preparation of real tillage soil through two conveyor belts, spiral augers and rollers, and by adding a worm and worm gear lifting mechanism, the height of the roller from the conveyor belt can be flexibly changed to prepare soils with different compactness.

[0015] 3) The present invention separately designs a fixed bench for the micro-tiller, and adds a universal ball double-pressure ring fixing device to adapt to different models of micro-tillers, so as to better fix the micro-tiller and reduce the influence of vibration on the detection process; the fixed bench for the micro-tiller and the soil preparation part constitute a reliability test device for the micro-tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the device for the reliability test of the micro-tiller of the present invention;

[0017] Figure 2 This is the bottom view of the liftable micro-tiller fixed stand with a sketch of the micro-tiller according to the present invention;

[0018] Figure 3 This is a schematic diagram of the liftable soil compaction roller with an upper conveyor belt according to the present invention;

[0019] Figure 4 This is a schematic diagram of the soil aggregation and dispersion device and the right-side inclined auger of the present invention;

[0020] Figure 5 This is the bottom view of the belt conveyor of the present invention;

[0021] Figure 6 This is a single-side schematic diagram of the limit knife fixing device of the liftable micro-tiller fixed stand of the present invention;

[0022] Figure 7 This is a schematic diagram of the universal ball double-pressure ring fixing device of the liftable micro-tiller fixed stand of the present invention. Detailed implementation manners

[0023] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the specification drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] On the contrary, the present invention covers any alternatives, modifications, equivalent methods and solutions made within the essence and scope of the present invention defined by the claims. Further, in order to enable the public to have a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. Those skilled in the art can fully understand the present invention without the description of these details.

[0025] Please refer to Figures 1-7 , a micro-tiller reliability test device, including a liftable micro-tiller fixed stand 1, a liftable soil compaction roller 2, a soil aggregation and dispersion device 3, and a belt conveyor 4. The liftable micro-tiller fixed stand 1 and the soil aggregation and dispersion device 3 are fixed separately, and the liftable soil compaction roller 2 and the belt conveyor 4 are fixed on the same frame.

[0026] As Figure 5 shown: The belt conveyor 4 includes upper and lower conveyor belts. Both the upper conveyor belt and the lower conveyor belt are equipped with L-shaped conveyor belt soil baffles 41. The lower conveyor belt and the upper conveyor belt have opposite transmission directions. The lower conveyor belt transports the soil to the right to the set soil trough, and the upper conveyor belt transports the soil to the left and passes through the liftable soil compaction roller to complete soil preparation.

[0027] As Figure 2As shown in the figure: The liftable micro-tiller fixing bench 1 includes a bench surface and its frame 11. The liftable micro-tiller fixing bench surface and its frame 11 are controlled to lift by scissor lifts 15 arranged on both sides of the bench surface and its frame 11. The two scissor lifts 15 work with the same oil pump to achieve synchronous lifting on both sides. In addition, universal wheels are installed at the bottom of the scissor lift to facilitate the movement of the liftable micro-tiller fixing bench 1.

[0028] As Figure 3 shown in the figure: The liftable soil compaction roller 2 includes a roller assembly and a lifting assembly. The roller assembly is lifted by a worm gear and worm elevator 26; the roller assembly includes a roller 23, a bearing seat 25, and a Z-shaped roller soil baffle 24; the lifting assembly includes a worm gear and worm elevator 26, a lead screw 27, and a rotating shaft connecting rod 28.

[0029] Two worm gear and worm elevators 26 are fixed on both sides of the conveyor belt frame 43. The lead screw 27 is fitted and passed through the worm gear and worm elevator 26. A flange 21 is fixedly connected to the bottom end of the lead screw 27; the left and right worm gear and worm elevators 26 are connected by a rotating shaft connecting rod 28 to achieve synchronous lifting. The L-shaped bearing seat 25 is fixed on the flange 21. Both ends of the roller 23 are installed in the L-shaped bearing seats 25 on both sides and are rotationally controlled by a motor. The Z-shaped roller soil baffle 24 is fixed on one side of the L-shaped bearing seat 25 and is lifted synchronously with the roller 23 through the Z-shaped roller soil baffle 24 to solve the gap problem formed by the conveyor belt soil baffle 41 on the upper conveyor belt to reserve a moving space for both ends of the roller 23.

[0030] As Figure 4 shown in the figure: The soil gathering and dispersing device 3 includes a lower spiral auger, an upper spiral auger, and an inclined auger; the lower spiral auger is arranged corresponding to the lower conveyor belt and is used to gather the soil conveyed by the lower conveyor belt and feed it into the inclined auger; the upper spiral auger is arranged corresponding to the upper conveyor belt and is used to disperse the soil conveyed by the inclined auger to the upper conveyor belt; the upper spiral auger is connected to the lower spiral auger through the inclined auger. The auger controls the gathering of soil towards the middle or the dispersion from the middle to both sides by means of a screw rod and a spiral blade 31.

[0031] At the lower and upper parts of the inclined auger, there are respectively a soil inlet 35 and a soil outlet 36; the lower spiral auger converges the soil conveyed by the lower conveyor belt to the position of the soil inlet 35 to enter the inclined auger for upward conveyance. At the connection between the auger baffle 34 in the lower spiral auger and the soil trough, there is a square opening, and the soil on the conveyor belt will enter the lower spiral auger from the soil trough to gather the soil to the soil inlet 35. Similarly, there is a square opening on the lower side of the auger baffle of the upper spiral auger. The soil is conveyed by the inclined auger to the soil outlet 36, and then enters the upper spiral auger from the soil outlet 36, dispersing the soil from the center to both sides, so that the soil is laid on the upper conveyor belt relatively evenly. The soil gathering and dispersing device 3 is fixed to the right inclined auger by profiles and universal wheels are installed at the bottom.

[0032] For the convenience of understanding the present invention, the working principle of the present invention will be further described below:

[0033] During the experiment, the handle of the micro-tiller 5 to be tested is fixed by the universal ball double-pressure ring fixing device 13, and the limit knife of the micro-tiller is clamped by the micro-tiller limit knife fixing device 12 to fix the micro-tiller 5 on the liftable micro-tiller fixing bench 1. Then, the liftable micro-tiller fixing bench 1 is lifted to a set height so that the rotary tiller blade has a safety distance of 20 mm from the upper conveyor belt.

[0034] Adjust the height of the roller 23 in the liftable soil pressing roller 2 from the conveyor belt to the height required for the experiment. The different heights of the pressing roller 23 from the upper conveyor belt result in different soil compactnesses prepared.

[0035] Place the soil required for the experiment in advance on the lower conveyor belt. During the working process, the lower conveyor belt transports the soil to the right soil trough. The soil enters the soil gathering and dispersing device 3 from the right soil trough and gathers to the soil inlet 35. The soil is transported to the soil outlet 36 through the inclined spiral auger, and finally the upper spiral auger evenly accumulates the soil on the upper conveyor belt. The upper conveyor belt transports the soil to the left, and the roller 23 in the liftable soil pressing roller 2 compacts the soil to change its compactness. Finally, the compacted soil is scattered by the rotary tiller blade and falls from the upper conveyor belt to the lower conveyor belt.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A reliability test device for a micro-tiller, characterized in that, It includes a belt conveyor (4) for transporting soil, a liftable micro-tiller fixing bench (1) erected on one side of the belt conveyor (4) for fixing a micro-tiller (5), a soil aggregating and dispersing device (3) arranged on the other side of the belt conveyor (4) for transporting the soil, and a liftable soil pressing roller (2) erected on the other side of the belt conveyor (4) for compacting the soil.

2. The reliability test device for a micro-tiller according to claim 1, characterized in that, The liftable micro-tiller fixing bench (1) includes a fixing bench tabletop and its frame (11), which is controlled to lift by a scissor lift (15). On the fixing bench tabletop and its frame (11), there are provided a universal ball double-pressure ring fixing device (13) for fixing the handle fixing rod (14) of the micro-tiller and a micro-tiller limit knife, and a micro-tiller limit knife fixing device (12).

3. The reliability test device for a micro-tiller according to claim 2, characterized in that, The belt conveyor (4) includes a conveyor frame (43). On the conveyor frame (43), there are upper and lower layers of conveyors with opposite conveying directions, and conveyor soil baffles (41) are provided on each layer of the conveyor.

4. The reliability test device for a micro-tiller according to claim 3, characterized in that, The liftable soil pressing roller (2) includes a roller assembly and a lifting assembly for controlling the lifting of the roller assembly; the lifting assembly includes worm gear and worm elevators (26) arranged on both sides of the conveyor. The two worm gear and worm elevators (26) are synchronously linked through a rotating shaft connecting rod (28), and a lead screw (27) is cooperatively inserted into each worm gear and worm elevator (26); the roller assembly includes two bearing seats (25) respectively connected to the lead screws (27) on both sides. A roller (23) is rotatably arranged between the two bearing seats (25), and the roller (23) is located above the upper conveyor.

5. The reliability test device for a micro-tiller according to claim 4, wherein Through slots for the two ends of the roller (23) to pass through are formed in the conveyor soil baffle (41) of the upper layer, and roller soil baffles (24) are provided on the bearing seats (25) at the positions of the through slots.

6. The reliability test device for a micro-tiller according to claim 4, wherein, The soil aggregating and dispersing device (3) includes a lower spiral auger and an upper spiral auger respectively corresponding to the lower conveyor and the upper conveyor. The upper and lower spiral augers are connected through an inclined auger; the lower spiral auger is used for aggregating and feeding the soil transported by the lower conveyor into the inclined auger, and the upper spiral auger is used for dispersing and transporting the soil transported through the inclined auger to the upper conveyor.

7. The reliability test device for a micro-tiller according to claim 6, wherein, An earth inlet (35) and an earth outlet (36) are respectively arranged at the lower and upper parts of the inclined auger; the spiral blades on both sides of the earth inlet (35) of the lower spiral auger have opposite helix directions for aggregating the soil towards the earth inlet (35); the spiral blades on both sides of the earth outlet (36) of the upper spiral auger have opposite helix directions for dispersing the soil at the earth outlet (36) to both sides.

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