Front tooth rotary cultivator

Abstract

The utility model provides a front tooth rotary cultivator, and belongs to the field of rotary cultivator equipment. The problem of how to prolong the service life of the tillage blade is solved. A front tooth rotary cultivator comprises a rotary cultivator body and a supporting wheel set located on the rear side of the rotary cultivator body, the supporting wheel set comprises a hinge portion connected with the rotary cultivator body, the rotary cultivator body comprises a rotary blade and a pin shaft located in the middle of the rotary cultivator body, and the front tooth rotary cultivator is characterized in that the supporting wheel set can swing in a reciprocating mode with the pin shaft as the center; fixing plates are arranged on the two sides of the pin shaft, a plurality of positioning grooves are formed in the fixing plates in the swinging direction of the supporting wheel set, and the supporting wheel set controls the ground clearance of the rotary blade by enabling the positioning pins on the hinge portion to be connected with the positioning grooves in different positions in a clamped mode. The cutting depth of the rotary blade can be adjusted through swinging of the supporting assembly, the cutter can be prevented from colliding with the ground in the transportation process, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of rotary tiller equipment, in particular to a front-tooth rotary tiller. Background Art

[0002] As a tillage equipment with the advantages of strong soil crushing ability and flat surface after plowing, the rotary tiller has the functions of breaking the plow bottom layer, restoring the soil plow layer structure, and improving the standard of agricultural mechanization operation. It is mainly driven by the output shaft through the transmission device, driving the rotary tiller to rotate, and throwing the soil blocks backward and upward onto the cover, and using the reaction force of the soil on the rotary tiller to drive the unit forward.

[0003] In the prior art, rotary tillers usually use an internal combustion engine as a driving source to drive the tilling blade to rotate through a transmission device. Nowadays, when environmental protection is increasingly concerned, the exhaust gas emitted by the internal combustion engine will have a certain impact on the current environment. When the rotary tiller is used as a driving device for moving the equipment back and forth, the rotary tiller will usually collide with the concrete floor or other ground in a non-use environment. Moreover, due to the single height, the user cannot control the distance between the rotary tiller and the ground according to his needs. Summary of the Invention

[0004] The purpose of the utility model is to solve the above problems in the existing technology and propose a front-tooth rotary tiller. The technical problem to be solved by the utility model is: how to prolong the service life of the tilling blade.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a front-tooth rotary tiller, comprising a rotary tiller body and a supporting wheel group located on the rear side of the rotary tiller body, the supporting wheel group comprising a hinged portion connected to the rotary tiller body, the rotary tiller body comprising a rotary blade and a pin located in the middle of the rotary tiller body, characterized in that the supporting wheel group can swing back and forth with the pin as the center, fixed plates are provided on both sides of the pin, and a number of positioning grooves are provided on the fixed plates along the swinging direction of the supporting wheel group, and the supporting wheel group controls the distance between the rotary blade and the ground by engaging the positioning pin on the hinged portion with the positioning grooves at different positions.

[0006] The present application is a front-tooth rotary tiller, which mainly supports the rotary tiller by rotating the rotary blade of the rotary tiller body, thereby cutting large pieces of soil through the rotary blade, and at the same time forms a support plane through the cooperation of the support wheel group and the ground, thereby completing the support of the rotary tiller and ensuring the balance of the rotary tiller. The rotary tiller body is connected to the hinged part on the support wheel group through the pin shaft in the middle, and the support wheel group can swing back and forth around the pin shaft through the hinged part, so that when the support wheel group is controlled to swing back and forth around the pin shaft, the height of the support plane can be adjusted to adjust the distance between the rotary tiller and the ground, and Fixed plates are provided on both sides of the pin shaft. While fixing the pin shaft to improve the stability of the hinge, the positioning grooves provided on the fixed plates along the swing direction of the supporting wheel group cooperate with the positioning pins on the hinge part to complete the fixation of the supporting wheel group and improve the stability. Moreover, since the rotary tiller controls the height of the supporting plane by adjusting the swing amplitude of the supporting wheel group, when the supporting wheel group swings to the lowest position, the rotary tiller cannot contact the ground, thereby avoiding the end of the rotary tiller from colliding with the ground in the non-working state, thereby improving the service life of the rotary tiller.

[0007] In the aforementioned front-tooth rotary tiller, the hinged portion is provided with a strip-shaped hole through which a pin passes. The strip-shaped hole enables the hinged portion to move forward and backward relative to the pin. The pin and the hinged portion are also connected by a reset member. The reset member connects the hinged portion to the pin and enables the hinged portion to reciprocate on the pin through the strip-shaped hole. The reset member secures the hinged portion to prevent the locating pin from disengaging from the locating slot, thereby affecting its use.

[0008] In the aforementioned front-tooth rotary tiller, the tiller body further includes a drive source positioned above the rotary blades, a mudguard disposed between the drive source and the rotary blades, and a mounting bracket fixedly connected to the mudguard. The mudguard shields soil scooped up by the rotary blades, preventing contact between the soil and a user positioned behind the tiller body, thereby extending the service life of the tiller.

[0009] In the front-tooth rotary tiller, the fixing plate is located between the fixing frame and the fender. While the pin is fixed, the fixing plate is arranged between the fixing frame and the fender, thereby improving the structural strength of the machine.

[0010] In the above-mentioned front-tooth rotary tiller, a depth control lever is provided between the rotary tiller and the supporting wheel assembly, and the depth control lever includes a bracket fixedly connected to the mudguard. During use, the depth control lever is adjusted to facilitate controlling the cutting depth of the rotary tiller.

[0011] In the aforementioned front-tooth rotary tiller, the drive source includes a motor for driving the rotary blades and a battery pack for powering the motor. The battery pack is located between the support wheel assembly and the rotary blades. The motor drives the rotary blades, and the battery pack drives the motor, thereby preventing the environmental impact of exhaust emissions from the internal combustion engine. Furthermore, the battery pack is positioned between the rotary blades and the support wheel assembly, so that when the support wheel assembly swings, the wheelbase between the rotary blades and the support wheel assembly increases, shifting the center of gravity of the rotary tiller forward. This provides a certain amount of downward force on the rotary blades, ensuring stability in the cultivated land.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The present application achieves adjustment of the distance between the rotary tiller and the ground by hingedly connecting the support wheel group on the rotary tiller to the rotary tiller body through a pin shaft, and enabling the support wheel group to change the height of the support plane by reciprocating swing, and fixes it through a positioning pin and a positioning groove, thereby avoiding collision with the ground during transportation, thereby affecting its use, and by matching the positioning pin with positioning grooves of different heights, the distance between the rotary tiller and the ground can be adjusted to extend the service life of the rotary tiller.

[0014] 2. Place the battery pack in the drive source between the supporting wheel group and the rotary blade, and make it slightly close to the rotary blade. After the rotary tiller is adjusted, the overall center of gravity will tilt slightly forward, so that the rotary blade will be subjected to a certain downward pressure, avoiding encountering harder soil blocks that the rotary blade cannot chop up, thereby improving the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the exploded three-dimensional structure of this embodiment;

[0016] Figure 2 is a schematic cross-sectional view from the right side of this embodiment;

[0017] Figure 3 It is a left side schematic diagram of the embodiment in working state;

[0018] Figure 4 It is a left side schematic diagram of the embodiment in the transport state;

[0019] Figure 5 yes Figure 1 A partial enlarged schematic diagram;

[0020] Figure 6 yes Figure 2 A partial enlarged schematic diagram;

[0021] In the figure, 1. main body of the rotary tiller; 1a. rotary tiller blade; 1b. driving source; 1b1. motor; 1b2. battery pack; 1c. mudguard; 1d. fixing frame; 2. supporting wheel group; 2a. hinge part; 2a1. positioning pin; 2a2. strip hole; 3. pin shaft; 3a. fixing plate; 3a1. positioning groove; 4. reset part; 5. depth control lever; 6. supporting plane; 7. working plane. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] Example 1

[0024] like Figure 1 and Figure 5 As shown, the front-tooth rotary tiller includes a rotary tiller body 1, a supporting wheel group 2 located at the rear side of the rotary tiller body 1, and a fixing frame 1d, wherein the rotary tiller body 1 includes a driving source 1b provided with a motor 1b1 and a battery pack 1b2 and a rotary tiller blade 1a located below the driving source 1b, a mudguard 1c is provided between the driving source 1b and the rotary tiller blade 1a, and the fixing frame 1d is fixed to the mudguard 1c, and two fixing plates 3a are fixedly connected between the fixing member and the mudguard 1c, and the hinged portion 2a of the supporting wheel group 2 is hingedly connected to the rotary tiller body 1 through the pin shaft 3 and the fixing plate 3a, wherein the hinged portion 2a is provided with a reset member 4 that is clamped in connection with the pin shaft 3, a positioning pin 2a1 located on both sides of the hinged portion 2a, and a strip hole 2a2 for the pin shaft 3 to pass through.

[0025] like Figure 2 and Figure 6 As shown, the rotary tiller body 1 includes a driving source 1b, a rotary tiller blade 1a located below the driving source 1b, and a mudguard 1c located between the rotary tiller blade 1a and the driving source 1b. A fixing frame 1d is fixedly connected to the mudguard 1c, and at the rear end of the rotary tiller body 1, a fixing plate 3a is respectively connected to the fixing frame 1d and the mudguard 1c, and the fixing plate 3a is hingedly connected to the hinge part 2a on the support assembly through a pin shaft 3, and the hinge part 2a is provided with a pin shaft 3 for the hinge part 2a to reciprocate relative to the pin shaft 3, and the hinge part 2a and the pin shaft 3 are connected by a reset member 4, and a depth control rod 5 is provided between the rotary tiller blade 1a and the supporting wheel group 2. At this time, the supporting plane 6 against the supporting wheel group 2 is higher than the lower end face of the rotary tiller blade 1a, wherein the battery pack 1b2 is located between the motor 1b1 and the supporting wheel group 2, and close to the driving source 1b.

[0026] like Figure 3 and Figure 4As shown, the front-tooth rotary tiller includes two states: a transport state and a working state, wherein the positioning pin 2a1 on the hinged part 2a cooperates with several positioning grooves 3a1 arranged on the fixed plate 3a along the swing direction of the support wheel group 2. When the positioning pin 2a1 cooperates with the positioning groove 3a1 at the bottom of the fixed plate 3a, the rotary tiller is in the transport state. At this time, the support plane 6 is flush with the working plane 7 of the rotary tiller 1a, and when the positioning pin 2a1 is clamped and connected with another positioning groove 3a1, the support plane 6 and the working plane 7 are misaligned. At this time, the rotary tiller 1a is in the working state, and the distance between the rotary tiller 1a and the ground is the distance between the support plane 6 and the working plane 7. A control switch electrically connected to the motor 1b1 is provided on the fixed frame 1d.

[0027] To sum up, the working principle of the present application is as follows: in the working state, the user holds the fixed frame 1d by hand and makes the driving source 1b drive the rotary tiller 1a to rotate. At the same time, the rotary tiller 1a will also drive the front tooth rotary tiller to move forward, and the soil brought up by the rotary tiller 1a will be affected by the centrifugal force and collide with the mudguard 1c, thereby forming larger soil blocks into smaller soil blocks through collision, thereby completing the loosening of the soil. In addition, during use, since the supporting wheel group 2 and the rotary tiller body 1 are only hingedly connected to the pin shaft 3 and clamped in the positioning groove 3a1, during operation, the rotary tiller will shake when encountering harder soil blocks. In order to avoid the shaking and causing a certain impact on the supporting surface, a reset member 4 is provided on the hinged portion 2a of the supporting wheel group 2, and one end of the reset member 4 is It is fixedly connected to the pin shaft 3, and the other end is connected to the hinge part 2a, so that the positioning pin 2a1 can always be clamped and connected with the positioning groove 3a1, and in order to facilitate the adjustment of the height of the support assembly, the hinge part 2a is connected to the pin shaft 3 through the strip hole 2a2. When adjusting the support surface, it is necessary to first move the support wheel group 2 backward to separate the positioning groove 3a1 from the positioning pin 2a1, and then clamp the positioning pin 2a1 with another positioning groove 3a1 to complete the fixation of the support wheel group 2. Through this adjustment method, the distance between the support plane 6 below the support wheel group 2 and the working plane 7 below the rotary blade 1a is controlled to adjust the distance between the rotary blade 1a and the ground in the transportation state, and the depth of the rotary blade is controlled by the depth control lever.

[0028] When the front-tooth rotary tiller needs to be transported, the positioning pin 2a1 is engaged with the positioning groove 3a1 at the bottom of the fixed plate 3a, and the supporting plane 6 below the supporting wheel group 2 is flush with the working plane 7 of the rotary blade 1a. The user can move the rotary tiller by holding and pushing it, and avoid damage to the rotary blade 1a caused by collision with the ground.

[0029] When the front-tooth rotary tiller needs to plow the land, the supporting wheel group 2 is connected to the positioning groove 3a1 placed at the highest position, so that when it needs to deep plow, since the supporting plane 6 of the supporting wheel group 2 is higher than the working plane 7 of the rotary blade 1a, when the rotary blade 1a plows the land, the wheel will not hinder the normal operation of the rotary blade 1a, and can also be supported by the supporting wheel group 2 to ensure stability during the working process.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0031] Although this document frequently uses terms such as 1. rotary tiller body; 1a. rotary tiller blade; 1b. drive source; 1b1. motor; 1b2. battery pack; 1c. mudguard; 1d. fixing frame; 2. supporting wheel assembly; 2a. hinged portion; 2a1. positioning pin; 2a2. bar-shaped hole; 3. pin shaft; 3a. fixing plate; 3a1. positioning groove; 4. reset member; 5. depth control lever; 6. supporting plane; 7. working plane, the possibility of using other terms is not excluded. The use of these terms is merely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A front-tooth rotary tiller, comprising a rotary tiller body (1) and a supporting wheel group (2) located at the rear side of the rotary tiller body (1), wherein the supporting wheel group (2) comprises a hinged portion (2a) connected to the rotary tiller body (1), and the rotary tiller body (1) comprises a rotary tiller blade (1a) and a pin shaft (3) located in the middle of the rotary tiller body (1), characterized in that: The support wheel group (2) can swing back and forth with the pin shaft (3) as the center. Fixed plates (3a) are provided on both sides of the pin shaft (3). A plurality of positioning grooves (3a1) are provided on the fixed plates (3a) along the swinging direction of the support wheel group (2). The support wheel group (2) controls the distance between the rotary tiller (1a) and the ground by engaging the positioning pins (2a1) on the hinged part (2a) with the positioning grooves (3a1) at different positions.

2. The front-tooth rotary tiller according to claim 1, characterized in that: The hinged part (2a) is provided with a strip hole (2a2) for the pin shaft (3) to pass through, and the strip hole (2a2) enables the hinged part (2a) to move forward and backward relative to the pin shaft (3). The pin shaft (3) and the hinged part (2a) are also connected via a reset member (4).

3. The front-tooth rotary tiller according to claim 1 or 2, characterized in that: The rotary tiller body (1) further comprises a driving source (1b) located above the rotary tiller blade (1a), a mud guard (1c) being provided between the driving source (1b) and the rotary tiller blade (1a), and a fixing frame (1d) being fixedly connected to the mud guard (1c).

4. The front-tooth rotary tiller according to claim 3, characterized in that: The fixing plate (3a) is located between the fixing frame (1d) and the fender (1c).

5. The front-tooth rotary tiller according to claim 1, characterized in that: A depth control rod (5) is provided between the rotary tiller (1a) and the supporting wheel assembly (2), and the depth control rod (5) comprises a bracket fixedly connected to the mudguard (1c).

6. The front-tooth rotary tiller according to claim 4, characterized in that: The driving source (1b) comprises a motor (1b1) for driving the rotary tiller (1a) to rotate and a battery pack (1b2) for supplying energy to the motor (1b1); the battery pack (1b2) is located between the supporting wheel group (2) and the rotary tiller (1a).

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