Gantry type chassis attitude adjusting mechanism, agricultural equipment comprising same and method

Abstract

The invention discloses a gantry type chassis attitude adjusting mechanism, agricultural equipment comprising the mechanism and a method, the gantry type chassis attitude adjusting mechanism comprises a front gantry and a rear gantry, the bottom of the front gantry is connected with a first tire through a first hydraulic cylinder, and the bottom of the rear gantry is connected with a second tire through a second hydraulic cylinder; the front portal frame and the rear portal frame are connected through a hinge device, and a third hydraulic cylinder is further arranged between the front portal frame and the rear portal frame. The hinge device and the third hydraulic cylinder are used for adjusting the chassis to move back and forth; the front portal frame and the rear portal frame are further provided with a tilt angle sensor and a controller, the tilt angle sensor is used for detecting the tilt angle of the chassis, and the controller is used for controlling the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural equipment, and in particular to a gantry type chassis posture adjustment mechanism, agricultural equipment including the mechanism, and a method. Background Art

[0002] The terrain of plateaus and mountains is complex. The traditional self-propelled drive chassis has poor passability, stability, and adaptability. Agricultural machinery is prone to side slips, rollovers, unstable postures, and low traction efficiency during operation. In addition, agricultural machinery in plains is not suitable for mountainous operations. It is necessary to actively develop agricultural machinery equipment that is suitable for operations in plateaus, mountains, and hilly areas. The gantry chassis has the advantage of high passability and is currently widely used in agricultural equipment. However, the gantry chassis is currently an integral mechanism with poor overall flexibility and is difficult to adjust its posture. If the gantry chassis adjustment mechanism is not matched, it is easy to cause inconsistent tillage depth in slope operations.

[0003] Patent CN 201921030553.6 discloses a leveling device, including a bracket, a body, four lifting mechanisms, a tilt sensor and a control system, etc. However, the leveling device can only achieve leveling, and cannot achieve front and rear distance adjustment of the chassis. Moreover, the chassis in the device is a whole, and the front and rear distance cannot be adjusted. Summary of the invention

[0004] In order to solve the shortcomings of the prior art, the present invention provides a gantry type chassis posture adjustment mechanism and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention provides a gantry-type chassis posture adjustment mechanism, comprising a front gantry and a rear gantry, wherein the bottom of the front gantry is connected to a first tire via a first hydraulic cylinder, and the bottom of the rear gantry is connected to a second tire via a second hydraulic cylinder; the front gantry and the rear gantry are connected via a hinge device, and a third hydraulic cylinder is further provided between the front gantry and the rear gantry; the hinge device and the third hydraulic cylinder are used for adjusting the forward and backward movement of the chassis; an inclination sensor and a controller are further provided on the front gantry and the rear gantry, the inclination sensor is used for detecting the inclination angle of the chassis, and the controller is used for controlling the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder.

[0007] As a further technical solution, a first tire and a first hydraulic cylinder are respectively arranged at the bottom of the left support column and the bottom of the right support column of the front gantry.

[0008] As a further technical solution, the tops of the left support column and the right support column are connected by a crossbeam, and an inclination sensor and a controller are arranged on the crossbeam to detect the inclination angle of the chassis.

[0009] As a further technical solution, a second tire and a second hydraulic cylinder are respectively provided at the bottom of the left support column and the bottom of the right support column of the rear gantry.

[0010] As a further technical solution, the tops of the left support column and the right support column are connected by a crossbeam, and an inclination sensor and a controller are arranged on the crossbeam to detect the inclination angle of the chassis.

[0011] As a further technical solution, the hinge device is arranged above the third hydraulic cylinder.

[0012] As a further technical solution, the hinge device consists of a first hinge shaft, a second hinge shaft, a third hinge shaft, a first hinge arm and a second hinge arm. The first hinge shaft is installed on the rear gantry, the first hinge shaft is rotatably connected to one end of the first hinge arm, and the other end of the first hinge arm is rotatably connected to one end of the second hinge arm through the second hinge shaft; the other end of the second hinge arm is rotatably connected to the front gantry through the third hinge shaft.

[0013] In a second aspect, the present invention further discloses a gantry chassis posture adjustment method as follows:

[0014] When working on undulating land, the inclination sensor will collect the inclination angle of the chassis, detect that the horizontal values ​​of the front and rear gantries are inconsistent, and transmit the collected chassis angle information to the controller. The controller analyzes the information, compares it with the horizontal value of the gantry, obtains the angle that needs to be adjusted to make the gantry level, and generates a control signal, and outputs the corresponding control signal to the two first hydraulic cylinders and the two second hydraulic cylinders. The first hydraulic cylinder and the second hydraulic cylinder respectively perform telescopic movements to adjust the height of the four gantries to keep them balanced; when the controller analyzes the angle information and detects that the front and rear height difference of the gantry is large, it will generate a control signal and output the corresponding control signal to the third hydraulic cylinder to make the third hydraulic cylinder perform telescopic movements. When the third hydraulic cylinder contracts, the two hinged arms will bend toward the center with the contraction movement of the third hydraulic cylinder, thereby reducing the distance between the front and rear gantries; when the third hydraulic cylinder expands, the two hinged arms will open toward the center with the expansion movement of the third hydraulic cylinder, thereby increasing the distance between the front and rear gantries, so that the chassis can leave the area with a large height difference as soon as possible and keep the operation balanced as much as possible.

[0015] In a third aspect, the present invention further provides an agricultural equipment, comprising the gantry type chassis posture adjustment mechanism described above.

[0016] As a further technical solution, the agricultural equipment includes a combine harvester, a seed drill, a rice transplanter, a rotary tiller or a fertilizer applicator.

[0017] The terrain of plateaus and mountains is complex, and the traditional self-propelled drive chassis has poor passability, stability, and adaptability. Agricultural machinery is prone to side slips, rollovers, unstable postures, and low traction efficiency during operation. In addition, agricultural machinery in the northern plains is not suitable for operations in the southern mountains. It is necessary to actively develop agricultural machinery equipment that is suitable for operations in plateaus, mountains, and hilly areas. The gantry chassis has the advantage of high passability and is currently widely used in agricultural equipment. However, due to its high center of gravity and poor flexibility, it is difficult to adjust the posture. If the gantry chassis adjustment mechanism is not matched, it is easy to cause inconsistent tillage depth in slope operations.

[0018] The beneficial effects of the present invention are as follows:

[0019] The present invention designs the chassis into a front gantry and a rear gantry structure, and through the mutual cooperation between the first hydraulic cylinder, the second hydraulic cylinder, the hinge device, the third hydraulic cylinder, the inclination sensor and the controller on the front gantry and the rear gantry, the inclination sensor is used to detect the inclination angle of the chassis, and the controller controls the first hydraulic cylinder and the second hydraulic cylinder to adjust the chassis posture; and the hinge device and the third hydraulic cylinder are used to adjust the front gantry and the rear gantry to move forward and backward, so that when the ground has a certain slope, the height difference between the front gantry and the rear gantry can be quickly shortened, and the balance between the front and rear gantries can be achieved as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawing is a structural schematic diagram of a gantry type chassis posture adjustment mechanism and method of the present invention.

[0021] Figure 1 It is a structural front view of a gantry type chassis posture adjustment mechanism and method disclosed in the present invention;

[0022] Figure 2 It is a structural left view of a gantry type chassis posture adjustment mechanism and method disclosed in the present invention;

[0023] In the figure: 1-second tire, 2-second hydraulic cylinder, 3-front gantry, 4-tilt sensor and controller, 5-crossbeam, 6-rear gantry, 7-hinge device, 8-third hydraulic cylinder, 9-first tire, 10-first hydraulic cylinder, 11-first hinge shaft, 12-second hinge shaft, 13-third hinge shaft, 14-first hinge arm, 15-second hinge arm. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0026] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0027] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and the like in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present invention proposes a gantry chassis posture adjustment mechanism and method.

[0029] In a typical embodiment of the present invention, Figure 1 As shown, the gantry chassis posture adjustment mechanism proposed in this embodiment is specifically composed of a tire 1, a first hydraulic cylinder 2, a front gantry 3, an inclination sensor and controller 4, a rear gantry 6, a hinge device 7, a second hydraulic cylinder 8, etc.;

[0030] The gantry chassis posture adjustment mechanism disclosed in the present embodiment has a total of two front and rear gantries, namely the front gantry 3 and the rear gantry 6; the bottom of the front gantry 3 is connected to the first tire 9 through the first hydraulic cylinder 10, and the bottom of the rear gantry 6 is connected to the second tire 1 through the second hydraulic cylinder 2; the first hydraulic cylinder 10 and the second hydraulic cylinder 2 are used to adjust the up and down height of the gantry chassis. Specifically, the front gantry 3 includes a left support column and a right support column, and a first tire 9 and a first hydraulic cylinder 10 are respectively arranged at the bottom of the left support column and the bottom of the right support column of the front gantry 3; the rear gantry 6 includes a left support column and a right support column, and a second tire 1 and a second hydraulic cylinder 2 are respectively arranged at the bottom of the left support column and the bottom of the right support column of the rear gantry 6.

[0031] Furthermore, the tops of the left and right support columns of the front gantry 3 are connected via a crossbeam 5, and an inclination sensor and a controller are arranged on the crossbeam to detect the inclination angle of the chassis.

[0032] Furthermore, the tops of the left and right support columns of the rear gantry 6 are connected via another crossbeam 5 to form a gantry, and an inclination sensor and a controller are arranged on the crossbeam to detect the inclination angle of the chassis.

[0033] Furthermore, the front gantry 3 and the rear gantry 6 are connected by a hinge device 7, and a third hydraulic cylinder 8 is also arranged between the front gantry 3 and the rear gantry; the hinge device 7 and the third hydraulic cylinder 8 are used to adjust the forward and backward movement of the chassis; an inclination sensor and a controller 4 are also arranged on the front gantry 3 and the rear gantry 6, the inclination sensor is used to detect the inclination angle of the chassis, and the controller is used to control the first hydraulic cylinder 10, the second hydraulic cylinder 2 and the third hydraulic cylinder 8.

[0034] Furthermore, the hinge device 7 is arranged above the third hydraulic cylinder 8 .

[0035] Furthermore, the hinge device 7 is composed of a first hinge shaft 11, a second hinge shaft 13, a third hinge shaft 15, a first hinge arm 12 and a second hinge arm 14. The first hinge shaft 11 is installed on the rear gantry 6, the first hinge shaft 11 is rotatably connected to one end of the first hinge arm 12, and the other end of the first hinge arm 12 is rotatably connected to one end of the second hinge arm 14 through the second hinge shaft 13; the other end of the second hinge arm 14 is rotatably connected to the front gantry 3 through the third hinge shaft 15. And two hinge devices 7 and three hydraulic cylinders 8 are provided respectively, and the two hinge devices 7 are respectively installed between the front gantry and the rear gantry on the same side to adjust the forward and backward movement of the chassis; the two third hydraulic cylinders 8 are installed between the front gantry / rear gantry on the same side to adjust the forward and backward movement of the chassis; so that when the ground has a certain slope, the two third hydraulic cylinders 8 can quickly shorten the height difference between the front gantry and the rear gantry, and achieve the balance between the front and rear gantry as soon as possible. When going uphill, the rear gantry can be quickly moved to shorten the height difference between the front gantry and the rear gantry; and then the second hydraulic cylinder 2 and the third hydraulic cylinder 8 are used for leveling, so that the front gantry and the rear gantry can be balanced as soon as possible.

[0036] The working process of the present invention is as follows:

[0037] The device is installed on the gantry chassis. When working on undulating land, the inclination sensor will collect the inclination angle of the chassis. If it detects that the horizontal values ​​of the front and rear gantries are inconsistent, the collected chassis angle information will be transmitted to the controller. The controller analyzes the information and compares it with the horizontal values ​​of the front and rear gantries to obtain the angle that needs to be adjusted to make the front and rear gantries level, and generates a control signal. The corresponding control signal is output to the two first hydraulic cylinders 10 and the two second hydraulic cylinders 2. The two first hydraulic cylinders 10 and the two second hydraulic cylinders 2 respectively perform telescopic movements to adjust the height of the gantry chassis to keep it balanced. When the controller analyzes the angle information After analysis, it is detected that when the front and rear height difference of the gantry is large, a control signal will be generated, and the corresponding control signal will be output to the third hydraulic cylinder 8, so that the third hydraulic cylinder 8 can perform telescopic movement. The hinge device 7 is composed of three rotatable hinge shafts and two hinge arms. When the third hydraulic cylinder 8 contracts, the two hinge arms will bend toward the center with the contraction movement of the third hydraulic cylinder 8, thereby reducing the distance between the front and rear gantries; when the third hydraulic cylinder 8 expands, the two hinge arms will open toward the center with the expansion movement of the third hydraulic cylinder, thereby increasing the distance between the front gantry 3 and the rear gantry 6, so that the chassis can leave the area with a large height difference as soon as possible and maintain the working balance as much as possible.

[0038] This embodiment also provides an agricultural equipment, and the agricultural equipment includes the above-mentioned gantry chassis posture adjustment mechanism. Since the agricultural equipment is provided with the above-mentioned gantry chassis posture adjustment mechanism, the agricultural equipment also has all the advantages described above. In some embodiments, the agricultural equipment provided by the present invention can be any appropriate type of vehicle, such as a combine harvester, a seed drill, a rice transplanter, a rotary tiller, a fertilizer applicator, etc.

[0039] The present invention designs the chassis into a front gantry and a rear gantry structure, and through the mutual cooperation between the first hydraulic cylinder, the second hydraulic cylinder, the hinge device, the third hydraulic cylinder, the inclination sensor and the controller on the front gantry and the rear gantry, the inclination sensor is used to detect the inclination angle of the chassis, and the controller controls the first hydraulic cylinder and the second hydraulic cylinder to adjust the chassis posture; and the hinge device and the third hydraulic cylinder are used to adjust the front gantry and the rear gantry to move forward and backward, so that when the ground has a certain slope, the height difference between the front gantry and the rear gantry can be quickly shortened, and the balance between the front and rear gantries can be achieved as soon as possible.

[0040] Finally, it should be noted that relational terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gantry type chassis posture adjustment mechanism, characterized in that: It includes a front gantry and a rear gantry, the bottom of the front gantry is connected to the first tire through a first hydraulic cylinder, and the bottom of the rear gantry is connected to the second tire through a second hydraulic cylinder; the front gantry and the rear gantry are connected through a hinge device, and a third hydraulic cylinder is also arranged between the front gantry and the rear gantry; the hinge device and the third hydraulic cylinder are used to adjust the forward and backward movement of the chassis; the front gantry and the rear gantry are also provided with an inclination sensor and a controller, the inclination sensor is used to detect the inclination angle of the chassis, and the controller is used to control the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder.

2. The gantry type chassis posture adjustment mechanism according to claim 1, characterized in that: A first tire and a first hydraulic cylinder are respectively arranged at the bottom of the left supporting column and the bottom of the right supporting column of the front gantry.

3. The gantry type chassis posture adjustment mechanism according to claim 2, characterized in that: The tops of the left support column and the right support column are connected via a crossbeam, and an inclination sensor and a controller are arranged on the crossbeam to detect the inclination angle of the chassis.

4. The gantry type chassis posture adjustment mechanism according to claim 1, characterized in that: A second tire and a second hydraulic cylinder are respectively arranged at the bottom of the left supporting column and the bottom of the right supporting column of the rear gantry.

5. The gantry type chassis posture adjustment mechanism according to claim 4, characterized in that: The tops of the left support column and the right support column are connected via a crossbeam, and an inclination sensor and a controller are arranged on the crossbeam to detect the inclination angle of the chassis.

6. The gantry type chassis posture adjustment mechanism according to claim 1, characterized in that: The hinge device is arranged above the third hydraulic cylinder.

7. The gantry type chassis posture adjustment mechanism according to claim 1, characterized in that: The hinge device consists of a first hinge shaft, a second hinge shaft, a third hinge shaft, a first hinge arm and a second hinge arm. The first hinge shaft is installed on the rear gantry, the first hinge shaft is rotatably connected to one end of the first hinge arm, and the other end of the first hinge arm is rotatably connected to one end of the second hinge arm through the second hinge shaft; the other end of the second hinge arm is rotatably connected to the front gantry through the third hinge shaft.

8. The chassis posture adjustment method of the gantry type chassis posture adjustment mechanism according to any one of claims 1 to 7, characterized in that: as follows: When working on undulating land, the inclination sensor will collect the inclination angle of the chassis, detect that the horizontal values ​​of the front and rear gantries are inconsistent, and transmit the collected chassis angle information to the controller. The controller analyzes the information, compares it with the horizontal value of the gantry, obtains the angle that needs to be adjusted to make the gantry level, and generates a control signal, and outputs the corresponding control signal to the two first hydraulic cylinders and the two second hydraulic cylinders. The first hydraulic cylinder and the second hydraulic cylinder respectively perform telescopic movements to adjust the height of the four gantries to keep them balanced; when the controller analyzes the angle information and detects that the front and rear height difference of the gantry is large, it will generate a control signal and output the corresponding control signal to the third hydraulic cylinder to make the third hydraulic cylinder perform telescopic movements. When the third hydraulic cylinder contracts, the two hinged arms will bend toward the center with the contraction movement of the third hydraulic cylinder, thereby reducing the distance between the front and rear gantries; when the third hydraulic cylinder expands, the two hinged arms will open toward the center with the expansion movement of the third hydraulic cylinder, thereby increasing the distance between the front and rear gantries, so that the chassis can leave the area with a large height difference as soon as possible and keep the operation balanced as much as possible.

9. An agricultural equipment, characterized in that: It comprises the gantry type chassis posture adjustment mechanism as described in any one of claims 1-7.

10. The agricultural equipment according to claim 9, characterized in that: It is a combine harvester, seed drill, rice transplanter, rotary tiller or fertilizer spreader.

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