CN102577665B - No-missing chain-driven rotary cultivator with functions of soil casting and stubble plowing - Google Patents

Abstract

The present invention is a non-missing tillage chain drive soil throwing and stubble removal rotary tiller, which includes a chain transmission box assembly set in the middle transmission mode; a power input shaft and a transmission sprocket shaft are arranged in the front end of the chain transmission box, and the transmission sprocket shaft There is also a power input sprocket; the rear end of the chain transmission box is provided with a power output shaft, and the power output shaft is provided with a power output sprocket; the power input sprocket and the power output sprocket are provided with a transmission chain; the power The two ends of the output shaft respectively protrude from the chain transmission box and connect with the coupling with flange, the coupling is connected with the coulter shaft assembly, and the tiller and coulter are arranged on the coupling; the coulter The other end of the shaft assembly is connected with the support shaft through the flange, the support shaft is connected on the support arm, and the support arm is connected with the chain transmission box through the support housing. The invention is simple in manufacture, easy in production, low in cost, strong in versatility, convenient in maintenance, energy-saving, and the effect of rotary tillage and stubble removal is about doubled.

Description

Rotary Tiller with Chain Drive and Soil Throwing and Stubble Elimination

technical field

The invention relates to a rotary tiller, in particular to a rotary tiller for throwing soil and removing stubble with chain transmission without missing tillage.

Background technique

At present, the stubble removal rotary tiller generally has two forms. One is the forward double-axis stubble removal rotary tiller, which is the front shaft stubble removal and the rear shaft rotary tiller. This type of stubble removal rotary tiller is not only complicated to manufacture, high in cost, but also consumes a lot of power. It is easy to be damaged, not easy to maintain, and has many disadvantages such as poor stubble removal effect and cannot be widely used. The other is the reverse stubble removal rotary tiller. Although the stubble removal effect is better, but because the rotation direction of the implement is opposite to the power traction direction, the effective function must be overcome after the resistance force is overcome. This will not only cause The huge loss of power consumption is more likely to cause mechanical damage due to rough confrontation work, thereby increasing operating costs and maintenance costs.

The middle transmission tillage machinery, because of the corresponding lower end of the middle transmission box, cannot install the rotary cutter, which causes a 20cm wide blind area of rotary tillage and stubble removal, which has not been able to solve this problem so far. It directly affects the stubble removal and sowing quality of rotary tillage, thus affecting the grain yield.

Contents of the invention

The technical problem to be solved by the present invention is to provide a non-missing tillage chain-driven rotary cultivator for throwing soil and stubble removal with reasonable structural design, strong versatility and long service life in view of the deficiencies of the prior art.

The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention is a chain-driven soil-throwing and stubble-removing rotary tiller without missing plowing, which includes a chain transmission box assembly, and is characterized in that: the chain transmission box assembly is set in the way of intermediate transmission;

The chain transmission box assembly includes a transmission box body. The upper end of the transmission box body is provided with a power input shaft and a transmission sprocket shaft. The power input shaft and the transmission sprocket shaft are provided with meshing power input gears. The transmission sprocket shaft is also provided with Power input sprocket; the lower end of the transmission box is provided with a power output shaft, the power output shaft is arranged on the transmission box through a bearing and a bearing oil seal seat, and a power output sprocket is arranged on the power output shaft; the power input sprocket and A transmission chain is provided on the power output sprocket; a chain tensioning device fixed on the transmission box is provided on the outer side of the transmission chain;

The two ends of the power output shaft respectively protrude from the transmission box and are connected to the coupling with the flange, and the coupling is connected to the coulter shaft assembly with the flange through the flange. There are plowing knives and coulters on the top; the other end of the coulter shaft assembly is connected to the support shaft with the flange through the flange, the support shaft is connected to the support arm through the bearing and the bearing oil seal seat, and the support arm is supported by The shell is connected with the transmission case.

The coulter shaft assembly described in the present invention can be any kind of coulter shaft assembly disclosed in the prior art, and it generally includes a coulter shaft, and parts such as a coulter magazine and a coulter arranged on the coulter shaft composition.

In the non-missing tillage chain transmission soil throwing and stubble removal rotary tiller of the present invention: the power input gear arranged on the transmission sprocket shaft can be switched to a symmetrical installation position during use, so that the reverse rotation can be realized.

The technical problem to be solved by the present invention can be further realized through the following technical solutions. In the non-leaking tillage chain drive rotary tiller described above: the bearing connected to the support arm and the bearing oil seal seat are provided with a lubricating oil chamber, and the bearing and the bearing oil seal seat are also provided with a lubricating oil chamber. oil injection port. In this way, it is convenient to add lubricating oil and increase the service life.

The technical problem to be solved by the present invention can be further realized through the following technical solutions. In the above-mentioned non-missing tillage chain drive rotary tiller for throwing soil and stubble removal: a fence-type cover plate is arranged above the coulter shaft assembly. The fence type cover plate can be installed on the support of the rotary tiller during installation, or fixed on the support arm or the middle transmission box through the support. In the present invention, by adding a simple fence-type cover plate in the throwing direction of the rotary tiller, the inertia of throwing soil is used to complete a series of complex field operations such as cycling broken soil, blocking grass, and throwing soil to eliminate stubble.

The technical problem to be solved by the present invention can be further realized through the following technical solutions. In the above-mentioned non-missing tillage chain drive rotary tiller for throwing soil and stubble removal: the fence-type cover plate is arc-shaped.

The technical problem to be solved by the present invention can be further realized through the following technical solutions. In the above-mentioned non-missing tillage chain drive rotary tiller for throwing soil and stubble removal: the chain tensioning device includes a spring fork seat and a leaf spring fixed on the transmission box, and an adjusting bolt is arranged on the spring fork seat to adjust A parallel cap is arranged on the bolt, and a spring is fixed on the adjusting bolt in the spring fork, and the leaf spring is located between the transmission chain and the spring. The chain tensioning device disclosed by the invention has high elasticity and good tensioning effect. The present invention can also use any chain tensioning device disclosed in the prior art that is applicable to the present invention.

The present invention completely solves the problem of broken chains, damaged bearings, gears, and even broken transmission box assembly and other serious mechanical failures caused by various farming machinery supporting large agricultural machinery in Malaysia. . The plowing knife provided by the present invention can first turn up the raw soil in the aforementioned blind area, and then crush it through the coulter provided on the coupling, which especially solves the problem that the lower end of the middle transmission box of the farming machinery in the middle transmission cannot The 20cm blind area of rotary tillage and stubble removal caused by the installation of rotary cutters is a difficult problem that cannot be solved so far.

Because the present invention adopts a high-strength chain transmission mode with a chain tensioning device, it completely solves the non-parallel hard top tooth transmission caused by the inability to accurately locate the center distance between the gear transmissions, resulting in gears, bearings, transmission boxes, etc. The occurrence of serious failures such as heat fatigue damage of components.

Compared with the prior art, the invention has simple manufacture, easy production, low cost, strong versatility and convenient maintenance. Compared with the traditional stubble removal rotary tiller, the rotary tiller of the present invention can save energy by more than 50%, and the effect of rotary tillage and stubble removal is about doubled. Moreover, since the coulter shaft assembly is connected by a flange, it is not only convenient for maintenance, but also greatly saves maintenance costs.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is a kind of structural representation of fence type cover plate;

Fig. 3 is a structural schematic diagram of the chain tensioning device.

Detailed ways

The specific technical solutions of the present invention will be further described below with reference to the accompanying drawings, so that those skilled in the art can further understand the present invention, without limiting their rights.

Embodiment 1, with reference to Figures 1-3, a rotary tiller with chain drive for throwing soil and stubble without missing tillage, which includes a chain transmission box assembly, and the chain transmission box assembly is set in the way of intermediate transmission;

The chain transmission box assembly includes a transmission box body 1, a power input shaft 2 and a transmission sprocket shaft 3 are arranged inside the upper end of the transmission box body 1, and a meshed power input gear 4 is arranged on the power input shaft 2 and the transmission sprocket shaft 3, The transmission sprocket shaft 3 is also provided with a power input sprocket 5; the lower end of the transmission case 1 is provided with a power output shaft 20, and the power output shaft 20 is arranged on the transmission case 1 through a bearing and a bearing oil seal seat 12, and the power output The shaft 20 is provided with a power output sprocket 18; the power input sprocket 5 and the power output sprocket 18 are provided with a transmission chain 7; the outer part of the transmission chain 7 is provided with a chain tensioning device fixed on the transmission box 1 6;

The two ends of the power output shaft 20 extend out of the transmission case 1 to connect with the coupling 16 with the flange 14, and the coupling 16 is connected with the coulter shaft with the flange 14 through the flange 14. 13 connections, on the coupling 16 there are plow cutters 15 and coulters 19; the other end of the coulter shaft assembly 13 is connected to the support shaft 17 with the flange 14 through the flange 14, and the support shaft 17 The support arm 9 is connected to the support arm 9 through the bearing and the bearing oil seal seat 12 , and the support arm 9 is connected to the transmission case 1 through the support housing 8 .

Embodiment 2, in the non-missing tillage chain drive described in Embodiment 1, in the rotary tiller for throwing soil and stubble removal: the bearing connected to the support arm 9 and the bearing oil seal seat 12 are provided with a lubricating oil chamber 11, and the bearing and the bearing oil seal seat 12 are provided with a lubricating oil chamber 11. 12 is also provided with an oil filling port 10 communicating with the lubricating oil chamber 11.

Embodiment 3, referring to FIG. 2 , in the non-slip tillage chain drive soil throwing and stubble removal rotary tiller described in Embodiment 1 or 2 or 3: a fence-type cover plate 21 is provided above the coulter shaft assembly 13 .

Embodiment 4, in the chain-driven soil-throwing and stubble-removing rotary tiller without missing tillage described in Embodiment 3: the fence-type cover plate 21 is arc-shaped.

Embodiment 5, referring to Fig. 3, in the non-drainage tillage chain drive described in any one of embodiments 1-4, the soil throwing and stubble removal rotary tiller: the chain tensioning device 6 includes a spring fixed on the transmission box 1 The fork seat 25 and the leaf spring 26 are provided with an adjusting bolt 24 on the spring fork seat 25, and the adjusting bolt 24 is provided with a cap 23, and the adjusting bolt 24 in the spring fork seat 25 is fixedly provided with a spring 22. The leaf spring 26 is between the drive chain 7 and the spring 22 .

Claims (5)

1. A non-missing tillage chain drive soil throwing and stubble removal rotary tiller, which includes a chain transmission box assembly, characterized in that: the chain transmission box assembly is set in the form of intermediate transmission; The chain transmission box assembly includes a transmission box body. The upper end of the transmission box body is provided with a power input shaft and a transmission sprocket shaft. The power input shaft and the transmission sprocket shaft are provided with meshing power input gears. The transmission sprocket shaft is also provided with Power input sprocket; the lower end of the transmission box is provided with a power output shaft, the power output shaft is arranged on the transmission box through a bearing and a bearing oil seal seat, and a power output sprocket is arranged on the power output shaft; the power input sprocket and A transmission chain is provided on the power output sprocket; a chain tensioning device fixed on the transmission box is provided on the outer side of the transmission chain; The two ends of the power output shaft respectively protrude from the transmission box and are connected to the coupling with the flange, and the coupling is connected to the coulter shaft assembly with the flange through the flange. There are plowing knives and coulters on the top; the other end of the coulter shaft assembly is connected to the support shaft with the flange through the flange, the support shaft is connected to the support arm through the bearing and the bearing oil seal seat, and the support arm is supported by The shell is connected with the transmission case. 2. The non-missing tillage chain transmission soil throwing and stubble removal rotary tiller according to claim 1, characterized in that: the bearing connected to the support arm and the bearing oil seal seat are provided with a lubricating oil chamber, and the bearing and the bearing oil seal seat are provided with lubricating oil chambers. An oil filling port communicating with the lubricating oil chamber is also provided. 3. The non-missing tillage chain drive rotary tiller for throwing soil and stubble removal according to claim 1, characterized in that: a fence-type cover plate is arranged above the coulter shaft assembly. 4. The non-missing tillage chain drive rotary tiller for throwing soil and stubble removal according to claim 3, characterized in that: the fence-type cover plate is arc-shaped. 5. The chain-driven soil-throwing and stubble-removing rotary tiller without missing tillage according to claim 1, characterized in that: the chain tensioning device includes a spring fork seat and a leaf spring fixed on the transmission box, and the spring fork An adjusting bolt is arranged on the seat, and a cap is arranged on the adjusting bolt, and a spring is fixed on the adjusting bolt in the spring fork seat, and the leaf spring is located between the transmission chain and the spring.

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