CN112923047B

CN112923047B - Independent gear-shifting mini-tiller

Info

Publication number: CN112923047B
Application number: CN202110176284.XA
Authority: CN
Inventors: 方智恒; 李姣姣; 易刚
Original assignee: Chongqing Meiqi Industry Co ltd
Current assignee: Chongqing Meiqi Industry Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2023-04-25
Anticipated expiration: 2041-02-07
Also published as: CN112923047A

Abstract

The invention belongs to the technical field of agricultural machinery, and relates to a stand alone type gear shifting mini-tiller, which comprises a gear shifting mechanism, a power component, wheels, a gearbox and a handrail frame, wherein the gear shifting mechanism comprises a handrail seat fixed on a main body of the mini-tiller and used for arranging the handrail frame, a gear shifting pull rod with one end connected with a gear shifting arm of the gearbox, and a telescopic gear shifting rod arranged on the handrail seat and connected with the other end of the gear shifting pull rod; the handrail seat is provided with a stop plate for propping against the stop block arranged on the auxiliary rod, and the stop plate is provided with a clamping groove for the stop block to pass through and then be pressed. This plough machine a little through the design stand alone type gearshift, can not appear beating tooth trouble, and the reliability is high to when adjusting the handrail frame, no matter any angle can not influence the operation of shifting.

Description

Independent gear-shifting mini-tiller

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a gear shifting structure of a mini-tiller, in particular to a stand-alone gear shifting mini-tiller.

Background

The mini-tiller uses a small diesel engine or a gasoline engine as power, has the advantages of light weight, small volume, strong adaptability, low price and the like, and has wide application prospect. With the continuous progress of the technology, the requirements are improved, the structural technology of the mini-tiller is improved and perfected, and the mini-tiller is more suitable for wide users. The existing mini-tiller gear shifting technology is complex in structure, large in size, complicated and laborious in gear shifting, and the gear shifting is unclear, so that the gear shifting is influenced, the hand feeling is poor, the gear is damaged by misoperation easily when the mini-tiller is in reverse gear, the service life of the gear is shortened, the neutral gear position is not easy to find when the mini-tiller is in neutral gear, the adjustment is not convenient and fast enough, the reverse gear mechanism is independently arranged on the armrest frame, the operation gesture cannot be greatly adjusted on the armrest frame, the operation is limited, and the operation comfort of operators of the mini-tiller is affected. The problem is that the mini-tiller is not durable enough, parts are required to be replaced frequently, and the use and maintenance cost is high.

Disclosure of Invention

Therefore, the invention aims to provide a stand-alone gear-shifting mini-tiller, and aims to solve the problems that gear shifting is not clear in gear shifting change and gear control difficulty is high due to the fact that gears are mutually influenced.

In order to achieve the aim, the invention provides a stand alone type gear shifting mini-tiller, which comprises a gear shifting mechanism, a power component, wheels, a gearbox and a handrail frame, wherein the gear shifting mechanism comprises a handrail seat fixed on a main body of the mini-tiller and used for arranging the handrail frame, a gear shifting pull rod with one end connected with a gear shifting arm of the gearbox, and a telescopic gear shifting rod arranged on the handrail seat and connected with the other end of the gear shifting pull rod; the handrail seat is provided with a stop plate for propping against the stop block arranged on the auxiliary rod, and the stop plate is provided with a clamping groove for the stop block to pass through and then be pressed.

Further, a reinforcing member for increasing the impact strength of the stopper plate by the stopper is provided on the stopper plate of the armrest seat and away from the stopper.

Further, the armrest seat also comprises a pipe body used for arranging the stop plate, and a through groove used for the penetration of the telescopic gear lever is arranged at one end of the pipe body close to the stop plate.

Further, be equipped with the reinforcing plate that is used for reinforcing the installation of handrail frame on the body, the reinforcing plate sets up to two, divides to establish with the body both sides.

Further, a reinforcing pipe is arranged between the two reinforcing plates.

Further, the pipe body is provided with a bottom plate at the other end opposite to the stopper plate.

Further, the pipe body is provided with an adjusting plate for adjusting the inclination angle of the armrest frame, and a plurality of adjusting tooth parts are arranged in the adjusting plate.

Further, a turntable for horizontally rotating the armrest frame is arranged on the tube body.

Further, the power component is one of a diesel engine, a gasoline engine or an electric motor.

Further, the mini-tiller further comprises a rotary knife assembly connected with the gearbox.

The invention has the beneficial effects that:

1. the independent gear shifting mini-tiller is simple in structure and convenient to operate, accurate gear shifting of the mini-tiller can be achieved, the telescopic gear shifting rod is arranged on the armrest seat, and the operation habit of operators can be met.

2. The independent gear shifting mini-tiller integrates the forward gear, the neutral gear and the reverse gear which are manufactured by the two gears, the gears are clear, the gears are not mutually influenced when being switched, an operator can clearly feel the change of the gears, the phenomena that the gears are not separated, or are separated, or the neutral gear is not easy to find, and the like are avoided, the whole structure is durable, and the use and maintenance cost is greatly reduced.

3. The independent gear shifting mini-tiller realizes independent reverse gear, and one-key operation is more convenient and faster.

4. According to the independent gear shifting mini-tiller, the gear shifting mechanism is integrated on the armrest seat, so that the gear shifting mechanism is not associated with the armrest frame, and therefore a user of the armrest frame can also adjust the armrest frame according to different heights, and the operation is more comfortable. But also can be folded at any time in the aspect of transportation, and is convenient to transfer.

5. According to the independent gear shifting mini-tiller gear shifting, the stop plate acts as the limiting mechanism, so that gear shifting operation is simpler, more convenient and easier, the phenomenon that a neutral gear is not in place is avoided, and the gear is prevented from being damaged by misoperation.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of the stand alone type gear shifting mini tiller.

Fig. 2 is a schematic diagram of a gear shifting mechanism of the independent gear shifting mini-tiller.

Fig. 3 is a schematic view of a telescopic gear shift lever structure of a gear shift mechanism of the independent gear shift mini-tiller.

Fig. 4 is a schematic view of a structure of a handrail seat of a gear shifting mechanism of the stand alone type gear shifting mini tiller, a is a top view, and b is a side view.

Fig. 5 is a schematic view of an applied adjusting plate structure of a handrail seat of a gear shifting mechanism of the stand alone gear shifting mini tiller.

Fig. 6 is another schematic structural view of a handrail seat of a gear shifting mechanism of the stand alone type gear shifting mini tiller.

Fig. 7 is a gear schematic diagram of a gear shifting mechanism of the stand alone type gear shifting mini-tiller, wherein a is a forward second gear, b is a forward first gear, c is a neutral gear, and d is a reverse gear.

Reference numerals: 100 is a gear shifting mechanism, 200 is a power component, 300 is a wheel, 400 is a gearbox, 500 is a rotary cutter assembly, and 600 is a handrail frame; 1 is a handrail seat, 2 is a gear shifting pull rod, 3 is a telescopic gear shifting rod, and 4 is a turntable; the baffle plate is 11, the clamping groove is 12, the reinforcing piece is 13, the through groove is 14, the reinforcing plate is 15, the pipe body is 16, the bottom plate is 17, the reinforcing pipe is 18, and the adjusting plate is 19; 31 is a main rod, 32 is a rotary cylinder, 33 is a pin, 34 is a spring, 35 is a secondary rod, and 36 is a stop.

Detailed Description

Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1-4, the stand alone type gear shifting mini-tiller disclosed by the embodiment comprises a gear shifting mechanism 100, a power component 200, wheels 300, a gearbox 400, a rotary cutter assembly 500 and a handrail frame 600, wherein the gearbox 400, the wheels 300, the power component 200, the rotary cutter assembly 500 and the gear shifting mechanism 100 are arranged on a main frame of the mini-tiller, the gear shifting mechanism is used for gear control of the gearbox, the gearbox also drives the rotary cutter assembly to rotate, the wheels are used for moving and walking of the mini-tiller, and the rotary cutter assembly is used for ground work; the gear shifting mechanism comprises a handrail seat 1, a gear shifting pull rod 2 and a telescopic gear shifting rod 3 integrated on the handrail seat, wherein the handrail seat 1 is fixedly arranged on a main body frame or a gearbox 400 of the mini-tiller, and is used for installing a handrail frame 600, and comprises a stop plate 11, a pipe body 16 and a bottom plate 17, wherein the two ends of the pipe body 16 are respectively welded and connected with the stop plate 11 and the bottom plate 17, the bottom plate 17 is fixedly connected with the main body of the mini-tiller, and the stop plate 11 is used for being matched with the telescopic gear shifting rod 3; one end of the gear shifting pull rod 2 is connected with a gear shifting arm of the mini-tiller gearbox 400, and the other end of the gear shifting pull rod is connected with the telescopic gear shifting rod 3 and used for transmitting the gear of the telescopic gear shifting rod 3 so as to control the mini-tiller gearbox 400; the telescopic gear shift lever 3 is composed of a main lever 31, a rotary drum 32, a pin 33, a spring 34, an auxiliary lever 35 and a stop block 36, wherein the main lever 31 is rotationally connected with the armrest seat 1 through the rotary drum 32 arranged on the main lever 31, the main lever 31 is also in sliding connection with the auxiliary lever 35 through the pin 33 arranged on the main lever, the spring 34 is arranged between the main lever 31 and the auxiliary lever 35, a sliding groove 37 in sliding fit with the pin 33 is arranged on the auxiliary lever 35, a stop plate 11 for abutting against the stop block 36 arranged on the auxiliary lever 35 is arranged on the armrest seat 1, and a clamping groove 12 for pressing the stop block 36 after passing through is arranged on the stop plate 11. In this way, when the telescopic gear shift lever 3 is directly pulled towards the stop plate 11, the auxiliary lever 35 is acted by the spring 34 to enable the stop block 36 on the auxiliary lever to be propped against the stop plate 11, namely, the telescopic gear shift lever 3 is blocked by the stop plate 11, the gear of the mini-tiller is a neutral gear at the moment, as shown in fig. 7c, the stop plate 11 is used as a limiting mechanism, and the neutral gear position of the mini-tiller can be conveniently found by pulling the telescopic gear shift lever 3 to move backwards; if the auxiliary rod 35 is pressed downwards firstly, so that the spring 34 is compressed, the auxiliary rod 35 is lowered, then the auxiliary rod 35 of the telescopic gear shift lever 3 is pulled backwards continuously, at the moment, the stop block 36 on the auxiliary rod enters the clamping groove 12 of the stop plate 11, after the auxiliary rod is loosened, the auxiliary rod 35 is braked by the clamping action of the clamping groove 12, and the gear of the mini tiller at the moment is the reverse gear, as shown in fig. 7d, the reverse gear is integrated with the gear shift mechanism into a whole, and an independent reverse gear is formed, so that one-key operation is more convenient and quick, meanwhile, the stop block 36 and the top surface position in contact with the clamping groove are in a straight structure, so that an operator can push the auxiliary rod forwards easily, the reverse gear can be pushed out, and the elasticity of the spring can ensure that the stop block is pressed on the clamping groove to prevent the reverse gear from being released; if the gear shifting mechanism is in the forward gear, no matter the telescopic gear shifting lever 3 is in the neutral gear or the reverse gear, the auxiliary lever is pushed forward to be the forward first gear, as shown in fig. 7b, and the auxiliary lever is pushed forward to be the forward second gear, as shown in fig. 7 a; if it is impossible to determine what gear the gear shift mechanism is in, the auxiliary lever 35 is pulled backward to stop the stop block on the auxiliary lever on the stop plate 11, so that the neutral gear can be found, and the corresponding reverse gear or forward gear operation can be performed.

The stop plate 11 of the armrest seat 1 in the present exemplary embodiment is provided with a reinforcement 13 on the facing surface facing away from the stop 36 for increasing the impact strength of the stop plate 11 against the stop 36. Thus, the service life of the armrest seat, particularly the service life of the baffle plate, can be prolonged. The tube 16 of the armrest seat 1 has a through-slot 14 at one end near the stopper plate 11 for the penetration of the telescopic selector lever 3. Through the through groove 14 is formed on the pipe body 16 for the telescopic gear level 3 to penetrate, and the hinge holes (not marked) for the rotary drum 32 rotation connection of the telescopic gear level 3 are formed on the side walls of the pipe body 16 on the two sides of the through groove 14, so that the telescopic gear level 3 can be installed and the telescopic gear level 3 can be connected in a rotation mode.

The pipe body 16 of the armrest seat 1 in the present embodiment is provided with two reinforcing plates 15 for reinforcing the installation of the armrest frame 600, and the reinforcing plates 15 are separately provided on both sides of the pipe body 16. Meanwhile, a reinforcing pipe 18 is also provided between the two reinforcing plates 15. Further support can be provided for the installation of the armrest frame 600.

As shown in fig. 5, an adjusting plate 19 for adjusting the inclination angle of the armrest frame 600 is provided on the tube 16 of the armrest seat 1 in another embodiment, and a plurality of adjusting teeth (not shown) are provided in the adjusting plate 19. Through the regulating plate with the adjusting tooth part, the inclination angle of the armrest frame 600 arranged on the armrest seat 1 can be conveniently changed so as to adapt to the hand holding demands of different operators, and the arc degree can be regulated, and the operators can also regulate according to different heights.

As shown in fig. 6, a turntable 4 for horizontally rotating the armrest frame 600 is provided on the tube 16 of the armrest seat 1 in another embodiment, and a bearing and a latch are provided in the turntable. The horizontal rotation of the armrest frame is regulated through the turntable so as to adapt to the operation of the mini-tiller under different geographic conditions.

The independent gear shifting of the mini-tiller is integrated with the armrest seat through gear shifting, so that the traditional complex structure is simplified, two-gear forward gear, neutral gear and reverse gear operation can be realized by utilizing one telescopic gear shifting lever, the neutral gear is limited, and the reverse gear is the neutral gear when the mini-tiller is pulled backwards; the telescopic gear shifting lever is pressed down and pulled back at the same time, namely the reverse gear; 1. the second gear is pushed forward, so that the operation is simple, and the safety and reliability are realized. The gear is better in the aspect of neutral gear entering, the gear is not required to be observed by eyes, the gear is pulled backwards and is not moved, and the gear is at the neutral gear position, so that the gear is convenient, quick and efficient, the phenomenon that the neutral gear is out of position is not easy to occur, the gear is not clear, and the gear is damaged after misoperation is caused; and after the gear is adjusted to the neutral gear, other gears are not required to be adjusted, and the gear is automatically positioned. And has independent reverse gear, and one-key operation is easier and safer. The armrest seat is an independent control system, so that the armrest seat is not interfered with the armrest frame in operation, the armrest frame is convenient to adjust, and the armrest frame can be folded at any time in the transportation process, and is convenient to transfer. The mini-tiller is simple in structure, convenient to assemble and disassemble, unique in appearance, convenient, fast and accurate to operate by designing the gear shifting mechanism.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.

Claims

1. The utility model provides a shift method of stand alone type little cultivator of shifting, little cultivator includes gearshift (100), power component (200), wheel (300), gearbox (400) and handrail frame (600), its characterized in that, gearshift is including fixing on little cultivator main part and being used for setting up handrail seat (1) of handrail frame (600), one end and gear shift pull rod (2) that gearbox (400) shift arm is connected, telescopic gear shift lever (3) that are set up on handrail seat and are connected with the shift pull rod other end, telescopic gear shift lever comprises mobile jib (31), rotary drum (32), pin (33), spring (34), accessory pole (35), dog (36), and the mobile jib is through rotary drum and handrail seat swivelling joint that sets up on it, and the mobile jib still through the pin and accessory pole sliding connection that set up on it, and be equipped with spring between mobile jib and the accessory pole, be equipped with on the accessory pole with spout (37) with pin sliding fit; the handrail seat is provided with a stop plate (11) for propping against a stop block arranged on the auxiliary rod, the stop plate is provided with a clamping groove (12) used for pressing the stop block after passing through, the handrail seat also comprises a pipe body (16) used for arranging the stop plate, one end of the pipe body close to the stop plate is provided with a through groove (14) used for penetrating the telescopic gear lever, and the pipe body is provided with a rotary table (4) used for horizontally rotating the handrail frame; the gear shifting method comprises the following steps:

when the telescopic gear shifting lever (3) is directly pulled towards the stop plate (11), the auxiliary lever (35) is acted by the spring (34) to enable the stop block (36) on the auxiliary lever to be propped against the stop plate (11), namely, the telescopic gear shifting lever (3) is blocked due to the stop block (36) being propped against the stop plate (11), and the gear of the mini tiller at the moment is a neutral gear;

if the auxiliary rod (35) is pressed downwards firstly, so that the spring (34) is compressed, the auxiliary rod (35) is lowered, the auxiliary rod (35) of the telescopic gear lever (3) is pulled backwards continuously, at the moment, the stop block (36) on the auxiliary rod enters the clamping groove (12) of the stop plate (11), after the hand is loosened, the auxiliary rod (35) is braked due to the clamping effect of the clamping groove (12), and the gear of the mini tiller at the moment is the reverse gear;

if the gear shifting mechanism is in a forward gear, no matter whether the telescopic gear shifting lever (3) is in a neutral gear or a reverse gear at the moment, the auxiliary lever (35) is pushed forward, the forward gear is the forward first gear, and the forward gear is the forward second gear.

2. The gear shifting method of the independent gear shifting mini-tiller according to claim 1, characterized in that a reinforcement (13) for increasing the impact strength of the stop plate by the stop block is arranged on the stop plate of the armrest seat and away from the stop block.

3. The gear shifting method of the independent gear shifting mini-tiller according to claim 1, wherein the pipe body is provided with two reinforcing plates (15) for reinforcing the installation of the armrest frame, and the reinforcing plates are arranged on two sides of the pipe body separately.

4. A gear shifting method of a stand alone gear shifting mini tiller according to claim 3, characterized in that a reinforcement tube (18) is further provided between the two reinforcement plates.

5. The shifting method of a stand alone type shifting mini-tiller according to claim 1, characterized in that the pipe body is provided with a bottom plate (17) at the other end opposite to the stop plate.

6. The gear shifting method of the independent gear shifting mini-tiller according to claim 1, characterized in that an adjusting plate (19) for adjusting the inclination angle of the armrest frame is arranged on the pipe body, and a plurality of adjusting teeth are arranged in the adjusting plate.

7. The method of shifting a stand alone shift mini tiller of claim 1, wherein the power component is one of a diesel engine, a gasoline engine, or an electric motor.

8. The method of shifting a stand alone shift mini-tiller of claim 1, further comprising a rotary knife assembly (500) coupled to the gearbox.