A kind of furrow opener installation structure of rice transplanter
By using floating plates and variable force torsion spring fixing devices in rice transplanters, the automatic hiding or protrusion of the trench opener is solved, and the problems of uneven groove depth and deformation of the trench opener are improved, and the efficiency of transplanting and the reliability of the equipment are improved. and convenience of maintenance.
Patent Information
- Application Number
- CN201911150265.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-11-21
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2039-11-21
AI Technical Summary
The fixed structure of the existing rice transplanter groove opener causes uneven groove depth and easy to seedlings, and is prone to deformation or damage when subjected to gravity. The depth adjustment process is complicated and inconvenient for operation and maintenance.
Using a structure including floating plate, groove opener and fixing device, the fixing device connects the groove opener and float plate through a hinged shaft, and uses a variable force torsion spring and torsion adjustment spring to enable the groove opener to automatically hide or protrude, overcome resistance and achieve Adjust depth and shallowness.
It effectively avoids deformation or damage caused by heavy pressure, ensures that the floating plate correctly senses the ground, avoids errors in the depth of transplanting, improves the efficiency of transplanting and the service life of the groove opening, and simplifies the depth adjustment and maintenance process.
Smart Images
Figure CN112823580B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of agricultural machinery, and in particular to a furrow opener mounting structure for a rice transplanter. Background Art
[0002] With the development and application of various advanced technologies, the rice planting process has gradually been mechanized. The rice transplanter is an important machine in the rice planting process. During the operation, the rice seedlings are transplanted through the grooves opened by the furrow opener. The efficiency and results of transplanting are directly related to the grooves.
[0003] In the prior art, most of the trench openers are permanently and inseparablely fixed to the floating plate by connecting screws. Due to the influence of the flatness of the field, the depth of the trenches opened by the trench opener will be uneven, making the seedlings uneven and prone to seedling overturning. At the same time, during the static process, the seedlings are in direct contact with the ground and are easily deformed and damaged under the gravity of the seedling platform.
[0004] Another Chinese invention patent application with publication number CN 108283036 A discloses a rice transplanting furrowing, fertilizing and soil covering device, in which an adjustable telescopic rod is arranged in the middle of the furrow opener to force the furrow opener to rotate around the connection point between the connecting plate and the furrow opener, thereby adjusting the furrowing depth. This method can adjust the height of the furrow opener below the floating plate within a certain range, but the depth adjustment process is complicated and the reliability of the device is low, making it inconvenient to operate and maintain. Summary of the invention
[0005] In order to solve the above problems, the purpose of the present invention is to provide a fixing device that can automatically hide or protrude the furrow opener by setting a torsion spring when the seedling stand is supported by the ground or the furrow opener encounters a harder field.
[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:
[0007] A rice transplanter furrow opener mounting structure comprises a floating plate, a furrow opener and a fixing device, wherein the floating plate is provided with a groove, the furrow opener is mounted in the groove via the fixing device, the fixing device comprises a fixing seat assembly and a torsion spring, the fixing seat assembly is hinged to the end of the furrow opener and the fixing seat assembly is fixed to the floating plate, the torsion spring comprises a long torque arm, a short torque arm and torsion ears symmetrically distributed on both sides, the torsion spring is sleeved on the outside of the fixing seat assembly, the short torque arm is supported on the floating plate, the long torque arm is supported on the furrow opener, and the torsion spring is fixed to the fixing seat assembly via a hinge shaft.
[0008] The torsion spring, the fixing seat assembly and the furrow opener are hinged via the same hinge shaft.
[0009] The torsion spring is a variable force torsion spring, and a torsion adjustment spring is arranged at the middle position of at least one side of the long torsion arm or the short torsion arm of the variable force torsion spring, and the torsion adjustment spring is fixed to the fixing seat assembly.
[0010] The torsion spring is a variable force torsion spring, a torsion adjustment spring is arranged at the middle position of the short torsion arm of the variable force torsion spring, and the torsion adjustment spring is fixed to the floating plate.
[0011] A limiting boss is provided on at least one side of the furrow opener.
[0012] Washers are arranged on the outer sides of the torque ears facing each other, and the washers are sleeved on the hinge shaft.
[0013] The present invention adopts the above-mentioned technical scheme to achieve the following technical effects: when the seedling platform is supported by the ground, or when the furrow opener encounters a harder field, the resistance generated enables the furrow opener to overcome the elastic force of the variable force torsion spring and rotate around the pin shaft and hide in the groove, which not only avoids the furrow opener from being deformed or damaged due to the heavy pressure of the seedling platform, but also enables the float plate to achieve correct sensing of the ground, avoiding the position of the float plate being lifted due to contact with the harder ground, thereby making wrong judgments on the depth of transplanting, and further leading to phenomena such as too shallow transplanting and seedlings falling over; when the resistance disappears, the variable force torsion spring restores its deformation, and the furrow opener protrudes the float plate under the action of torque to perform normal furrowing operations. This process is completed automatically under the limiting action of the variable force torsion spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of a trenching machine;
[0015] Figure 2 This is a schematic diagram of the installation structure of the furrow opener;
[0016] Figure 3 It is the structural diagram of the torsion spring;
[0017] Figure 4 It is a structural schematic diagram of the furrow opener. DETAILED DESCRIPTION
[0018] In order to enable relevant technical personnel to have a clearer understanding of the technical solution of the present invention, the present invention is now further described in detail in conjunction with the accompanying drawings.
[0019] Example
[0020] like Figure 1 As shown, a furrow opener installation structure for a rice transplanter includes a floating plate 20, a furrow opener 1 and a fixing device. The floating plate 20 is provided with grooves on the left and right sides along the travel direction of the transplanter, and the furrow opener 1 is fixed in the groove by the fixing device.
[0021] like Figure 2, as shown in FIG. 4 , the fixing device includes a fixing seat assembly 3, a torsion spring, a pin 5 and a split pin 6. The end side of the furrow opener 1 located in the groove is provided with a fixed shaft hole 18. The fixing seat assembly 3 is raised in the middle to form a convex portion. The convex portion is located on both sides of the fixing shaft hole 18 and has through holes. The furrow opener 1 is movably connected to the fixing seat assembly 3 through the pin 5 that passes through the through hole and the fixing shaft hole 18 and is locked through the split pin 6. The two side edges of the fixing seat assembly 3 are fixed to the floating plate 20 through round head welding screws 7. The fixing seat assembly 3 is only raised in the middle, with a simple structure and is relatively easy to obtain. The formed convex portion is used to limit the lateral displacement of the furrow opener 1 and is threadedly connected to the floating plate 20 through the two side edges, so as to be firmly fixed.
[0022] like Figure 2 3, the long torque arm 13, the short torque arm 16 and the torque ears 14 symmetrically distributed on both sides, the variable force torsion spring 2 is sleeved on the outside of the fixed seat assembly 3, the short torque arm 16 is supported on the floating plate 20, the long torque arm 13 is supported on the furrow opener 1, the torque ear 14 is coaxially arranged with the through holes on both sides of the fixed seat assembly 3, and the same pin shaft 5 passes through the torque ears 14 on both sides, the through holes on both sides of the fixed seat assembly 3 and the fixed shaft hole 18 and is locked by the cotter pin 6.
[0023] During actual use, when the seedling platform is supported by the ground, or when the furrow opener 1 encounters a harder field, the furrow opener 1 is hidden in the groove of the floating plate 20 under the action of overcoming the elastic force, which not only prevents the furrow opener 1 from being deformed or damaged due to the heavy pressure of the seedling platform, but also enables the floating plate 20 to achieve correct sensing of the ground, avoiding the position of the floating plate 20 being lifted due to contact with the harder ground, thereby making an incorrect judgment on the depth of transplanting, and then causing the transplanting to be too shallow, the seedlings to fall over, etc.; when the seedling platform is lifted, the spring restores its deformation, and the furrow opener 1 extends out of the floating plate 20 under the action of the elastic force to perform normal furrowing operations.
[0024] The front side of the furrow opener 1 along the travel direction is provided with an inclined surface with an angle of 20 degrees. Due to the actual farming technology requirement of returning rice fields to the soil, a large amount of rice straw remains in the rice fields. When the furrow opener 1 encounters a large amount of rice straw, the resistance formed by the rice straw causes the furrow opener 1 to overcome the elastic force and rotate upward. Normal furrowing is then achieved in places with less rice straw, thereby avoiding interruption of furrowing operations due to the pushing and accumulation of rice straw by the furrow opener 1.
[0025] The torsion spring is a variable force torsion spring 2 , and a torsion adjustment spring 17 is arranged at the middle position of at least one side of the short torsion arm 16 or the long torsion arm 13 of the variable force torsion spring 2 . The torsion adjustment spring 17 is threadedly connected to the fixing seat assembly 3 .
[0026] In another embodiment, the torsion adjustment spring 17 disposed at the middle position of the short torsion arm 16 is fixed to the floating plate 20 .
[0027] During the furrowing process, the torque is controlled by the torque adjusting spring 17 according to the hardness of the field and the accumulation of soil on the floating plate, thereby controlling the rotation limit of the furrow opener 1 relative to the pin 5. This adjustment method is simple, highly adaptable and widely applicable.
[0028] Limiting bosses 9 are arranged on both sides of the furrow opener 1 , and the furrow opener 1 can achieve a limiting operation of 0 to 30 degrees under the joint action of the bosses 9 and the variable force torsion spring 2 .
[0029] The torsion ear 14 is provided with a washer 12 on the outer side facing each other, and the washer 12 is sleeved on the pin 5. The washer 12 is used to increase the contact area between the end side of the pin 5 and the torsion ear 14, and to lock the variable force torsion spring 2 more firmly.
[0030] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.
Claims
1. A furrow opener mounting structure for a rice transplanter, comprising a floating plate (20), a furrow opener (1) and a fixing device, wherein the floating plate (20) is provided with a groove, and the furrow opener (1) is mounted in the groove via the fixing device. Features: The fixing device comprises a fixing seat assembly (3) and a torsion spring, wherein the fixing seat assembly (3) is hinged to the end of the furrow opener (1) and the fixing seat assembly (3) is fixed on a floating plate (20), the torsion spring comprises a long torque arm (13), a short torque arm (16) and torque ears (14) symmetrically distributed on both sides, the torsion spring is sleeved on the outside of the fixing seat assembly (3), the short torque arm (16) is supported on the floating plate (20), the long torque arm (13) is supported on the furrow opener (1), and the torsion spring is fixed to the fixing seat assembly (3) via a hinge shaft; The torsion spring, the fixing seat assembly (3) and the furrow opener (1) are hingedly connected via the same hinge shaft; The torsion spring is a variable force torsion spring (2), and a torsion adjustment spring (17) is arranged at a middle position of at least one side of a long torsion arm (13) or a short torsion arm (16) of the variable force torsion spring (2), and the torsion adjustment spring (17) is fixed to the fixing seat assembly (3).
2. A rice transplanter furrow opener mounting structure according to claim 1, Features: The torsion spring is a variable force torsion spring (2), a torsion adjustment spring (17) is arranged in the middle position of the short torsion arm (16) of the variable force torsion spring (2), and the torsion adjustment spring (17) is fixed to the floating plate (20).
3. A rice transplanter furrow opener mounting structure according to claim 1, Features: At least one side of the furrow opener (1) is provided with a limiting boss (9).
4. A rice transplanter furrow opener mounting structure according to claim 1, Features: A washer (12) is provided on the outer sides of the torque ears (14) facing each other, and the washer (12) is sleeved on the hinge shaft.