Agricultural machine connecting structure

Abstract

The application relates to a farming machine connecting structure and belongs to the field of farming equipment. The structure comprises a limiting sleeve, a plug-in sleeve and a pin shaft. The limiting sleeve is arranged on a farming machine, the plug-in sleeve is slidingly arranged in the limiting sleeve, the plug-in sleeve is connected with a resistance rod of the farming machine, and a plurality of pin shafts are slidingly arranged in the limiting sleeve and the plug-in sleeve. The application has the effect of improving the problems of time-consuming and labor-consuming in the dismounting of the resistance rod of a small mountain farming machine.

Description

Technical Field

[0001] This application relates to the field of agricultural equipment, and in particular to a connection structure for an agricultural machine. Background Technology

[0002] Agricultural equipment refers to various machines used in crop cultivation and animal husbandry, as well as in the initial processing and treatment of agricultural and livestock products. These include agricultural power machinery, farmland construction machinery, soil tillage machinery, planting and fertilization machinery, etc.

[0003] Currently, small agricultural tillers suitable for mountainous terrain are typically equipped with a drag bar at the rear, which controls the tilling depth by the depth the drag bar is inserted into the soil. However, the installation of the drag bar's support on the tiller involves numerous bolts or direct welding, resulting in time-consuming and labor-intensive installation and removal of the drag bar. This, in turn, affects the assembly efficiency of small mountain agricultural tillers and the ease of installing and removing the drag bar during subsequent use. Utility Model Content

[0004] To address the time-consuming and labor-intensive installation and removal of the resistance rod in small mountain farm machinery, this application provides a connection structure for the farm machinery.

[0005] The agricultural machinery connection structure provided in this application adopts the following technical solution:

[0006] A connecting structure for an agricultural tiller includes a limiting sleeve, a plug-in sleeve, and pins. The limiting sleeve is disposed on the agricultural tiller, the plug-in sleeve is slidably inserted into the limiting sleeve, the plug-in sleeve is connected to the resistance rod of the agricultural tiller, and multiple pins are slidably passed through the limiting sleeve and the multiple pins are passed through the plug-in sleeve.

[0007] By adopting the above technical solution, the plug-in sleeve is inserted into the limiting sleeve, and then multiple pins are inserted into the limiting sleeve and the plug-in sleeve. The limiting sleeve supports the plug-in sleeve, and the multiple pins limit the plug-in sleeve, so that the positioning and installation of the plug-in sleeve can be completed conveniently and quickly, thereby completing the installation of the agricultural tiller's resistance rod. During the insertion, multiple pins need to be pulled out to remove the plug-in sleeve, which improves the problem of time-consuming and laborious installation and removal of the resistance rod of small mountain agricultural tillers.

[0008] Optionally, a positioning block is provided at one end of the plug sleeve facing the limiting sleeve, and a positioning groove for the positioning block to be inserted is provided on the limiting sleeve.

[0009] By adopting the above technical solution, when the plug sleeve is inserted into the limiting sleeve, the positioning block is driven to insert into the positioning groove, which can position the installation position of the plug sleeve, making it easier to align the holes through which the pin passes between the limiting sleeve and the plug sleeve, thus facilitating the subsequent insertion of the pin.

[0010] Optionally, the cross-sectional dimensions of the positioning block gradually increase from the direction closer to the limiting sleeve to the direction farther away from the limiting sleeve.

[0011] By adopting the above technical solution, the positioning block with a cross-sectional size that gradually increases from near the limiting sleeve to far away from the limiting sleeve is easier to insert into the positioning groove, reducing the operational requirements when assembling the plug sleeve.

[0012] Optionally, a cotter pin is provided at one end of the pin that passes through the limiting sleeve and the insertion sleeve.

[0013] By adopting the above technical solution, the cotter pin locks the pin shaft in the assembly that inserts into the limiting sleeve and the plug sleeve, reducing the possibility of the pin shaft coming off.

[0014] Optionally, the limiting sleeve is provided with a hinge assembly for hinged connection with the agricultural tiller. The hinge assembly includes a deformation plate, a support plate and a hinge shaft. Two deformation plates are spaced apart on the limiting sleeve. The support plate is disposed on the agricultural tiller and is used to insert between the two deformation plates. The hinge shaft passes through the two deformation plates and the support plate.

[0015] By adopting the above technical solution, when assembling the limiting sleeve onto the tiller, the limiting sleeve is moved so that the support plate is inserted between the two deformation plates. Then, the hinge shaft passes through the deformation plate and the support plate, thus completing the hinged installation of the limiting sleeve on the tiller. This facilitates the adjustment of the direction of the resistance rod during subsequent tilling, and thus the adjustment of the tiller's travel direction through the resistance rod.

[0016] Optionally, the hinge shaft is threaded to both deformation plates, and the threads connecting the hinge shaft and the two deformation plates are arranged in opposite directions.

[0017] By adopting the above technical solution, rotating the hinge shaft drives the two deformation plates closer to each other, thereby adjusting the clamping force of the two deformation plates on the support plate and adjusting the force required to drive the limit sleeve to rotate, thus meeting the different tightness requirements of the limit sleeve.

[0018] Optionally, a gasket is provided between the deformation plate and the support plate.

[0019] By adopting the above technical solution, the gasket reduces the wear of the deformation plate and the support plate, and reduces the possibility of the two deformation plates becoming loose.

[0020] Optionally, a limit nut is threaded onto one end of the hinge shaft that passes through the deformation plate and the support plate.

[0021] By adopting the above technical solution, the limiting nut limits the hinge shaft on the deformation plate and the support plate, reducing the possibility of the hinge shaft detaching from the deformation plate and the support plate.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The limiting sleeve supports the plug-in sleeve, and multiple pins limit the plug-in sleeve, which can easily and quickly complete the positioning and installation of the plug-in sleeve, and then complete the installation of the resistance rod of the agricultural tiller. When plugging, multiple pins need to be pulled out to remove the plug-in sleeve, which improves the problem of time-consuming and laborious installation and removal of the resistance rod of small mountain agricultural tillers.

[0024] 2. The positioning block is inserted into the positioning groove to position the installation position of the plug sleeve, which makes it easy to align the hole of the limiting sleeve and the plug sleeve for the pin shaft to pass through, thus facilitating the subsequent insertion of the pin shaft;

[0025] 3. By passing the hinge shaft through the deformation plate and the support plate, the hinge installation of the limiting sleeve on the tiller can be completed. This facilitates the adjustment of the direction of the resistance rod during subsequent tilling, and thus the adjustment of the tiller's direction of travel through the resistance rod. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the agricultural machinery connection structure according to an embodiment of this application.

[0027] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of this application.

[0028] Reference numerals in the attached drawings: 1. Limiting sleeve; 11. Positioning groove; 2. Insertion sleeve; 3. Pin; 4. Positioning block; 5. Cotter pin; 6. Hinge assembly; 61. Deformation plate; 62. Support plate; 63. Hinge shaft; 7. Washer; 8. Limiting nut. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a connection structure for a farming machine.

[0031] Reference Figure 1 , Figure 2 The agricultural tiller connection structure includes a limiting sleeve 1, a plug-in sleeve 2, a pin 3, and a hinge assembly 6. The limiting sleeve 1 has a U-shaped cross-section. The hinge assembly 6 is installed on the limiting sleeve 1 and is used to hinge with the agricultural tiller. The hinge assembly 6 includes a deformation plate 61, a support plate 62, and a hinge shaft 63. Two deformation plates 61 are installed on the limiting sleeve 1 at an upper and lower interval. In this embodiment, the deformation plates 61 are made of aluminum alloy that can deform. The support plate 62 is installed on the agricultural tiller and is located between the two deformation plates 61. The hinge shaft 63 passes through the upper deformation plate 61, then through the support plate 62, and then through the lower deformation plate 61.

[0032] The movable limiting sleeve 1 allows the support plate 62 installed on the tiller to be inserted between the two deformation plates 61. Then, the pin 3 is inserted from top to bottom into the upper deformation plate 61, the support plate 62, and the lower deformation plate 61, thus conveniently and quickly completing the hinged installation of the limiting sleeve 1 on the tiller. Subsequently, the plug sleeve 2 is installed on the limiting sleeve 1, thus completing the installation of the tiller's resistance rod. During use, the angle between the resistance rod and the tiller can be adjusted by rotating the limiting sleeve 1, improving the applicability of adjusting the tiller's direction of travel by adjusting the angle of the resistance rod.

[0033] Reference Figure 1 , Figure 2 The two outer walls of the hinge shaft 63, which pass through the two deformation plates 61, are threaded. The threads of the hinge shaft 63 and the two deformation plates 61 are in opposite directions. In this embodiment, in order to facilitate the assembly of the hinge shaft 63, the diameter of the lower part of the hinge shaft 63 that passes through the lower square deformation plate 61 is smaller than the part of the hinge shaft 63 that passes through the upper square deformation plate 61, so that the lower end of the hinge shaft 63 can directly pass through the upper deformation plate 61.

[0034] After the hinge shaft 63 is inserted into the two deformation plates 61 and the support plate 62, the hinge shaft 63 is turned so that the two deformation plates 61 deform to move closer or further apart, thereby adjusting the clamping force of the two deformation plates 61 on the support plate 62, and thus adjusting the force required to drive the limit sleeve 1 to rotate, so as to meet the different tightness requirements when adjusting the resistance rod to drive it to rotate.

[0035] Reference Figure 1 , Figure 2 A limiting nut 8 is threaded onto one end of the hinge shaft 63 that passes through the deformation plate 61 and the support plate 62. After the hinge shaft 63 passes through the two deformation plates 61 and the support plate 62, the limiting nut 8 is screwed to the bottom of the hinge shaft 63. The limiting nut 8 can limit the upward movement of the hinge shaft 63, thereby reducing the possibility of the hinge shaft 63 detaching from the deformation plate 61 and the support plate 62.

[0036] Reference Figure 1 , Figure 2 A gasket 7 is installed between the deformation plate 61 and the support plate 62. In this embodiment, the gasket 7 is made of rubber. The gasket 7 fills the space between the deformation plate 61 and the support plate 62, reducing wear on the deformation plate 61 and the support plate 62, and reducing the possibility of the two deformation plates 61 becoming loose.

[0037] Reference Figure 1 , Figure 2The cross-sectional shape of the plug sleeve 2 is U-shaped. The outer diameter of the plug sleeve 2 is the same as the inner diameter of the limiting sleeve 1. The resistance rod of the agricultural tiller is installed on the plug sleeve 2. The plug sleeve 2 is slidably inserted into the inner wall of the limiting sleeve 1. Multiple pins 3 are slidably inserted on the limiting sleeve 1. Multiple pins 3 are respectively inserted on the plug sleeve 2. A cotter pin 5 is installed at one end of the pin 3 that passes through the limiting sleeve 1 and the plug sleeve 2.

[0038] After installing the limiting sleeve 1 onto the tiller, insert the connecting sleeve 2 into the limiting sleeve 1. Then, pass multiple pins 3 through the limiting sleeve 1 and the connecting sleeve 2, and insert a cotter pin 5 into the end of the pin 3 that passes through the limiting sleeve 1 and the connecting sleeve 2. The cotter pin 5 locks the pin 3 in place within the assembly of the limiting sleeve 1 and the connecting sleeve 2, reducing the possibility of the pin 3 coming off. This completes the installation of the connecting sleeve 2, thus facilitating the quick and easy installation of the tiller's resistance rod. Afterward, remove the cotter pin 5 and then the pin 3 to remove the connecting sleeve 2 and disassemble the resistance rod. This improves the time-consuming and laborious process of installing and removing the resistance rod on small mountain tillers, enhances the assembly efficiency of small mountain tillers, and improves the convenience of installing and removing the resistance rod during subsequent use.

[0039] Reference Figure 1 , Figure 2 A positioning block 4 is installed at one end of the plug sleeve 2 facing the limiting sleeve 1. The cross-sectional size of the positioning block 4 gradually increases from the direction close to the limiting sleeve 1 to the direction far away from the limiting sleeve 1. A positioning groove 11 is provided on the limiting sleeve 1, and the positioning block 4 is inserted into the positioning groove 11.

[0040] When the plug sleeve 2 is inserted into the limiting sleeve 1, the positioning block 4 is aligned with the insertion positioning groove 11. During the insertion process, the end of the positioning block 4 with the smaller cross-sectional size is inserted into the positioning groove 11 first. As insertion continues, the end of the positioning block 4 with the larger cross-sectional size abuts against the side wall of the positioning groove 11, thereby positioning the installation position of the plug sleeve 2. This aligns the holes through which the pin 3 passes between the limiting sleeve 1 and the plug sleeve 2, making it easier to insert the pin 3 later. Furthermore, the positioning block 4, whose cross-sectional size gradually increases from near the limiting sleeve 1 to far away from the limiting sleeve 1, is easier to insert into the positioning groove 11, reducing the operational requirements when assembling the plug sleeve 2.

[0041] The implementation principle of the agricultural tiller connection structure in this application embodiment is as follows: the moving limiting sleeve 1 causes the support plate 62 to engage with the two deformation plates 61, then the hinge shaft 63 passes through the deformation plate 61 and the positioning plate, and the limiting nut 8 is tightened to complete the installation of the limiting sleeve 1. Then, the plug sleeve 2 is inserted into the limiting sleeve 1, and multiple pins 3 are passed through the limiting sleeve 1 and the plug sleeve 2 respectively. The cotter pin 5 is inserted into the pin 3 to position and install the plug sleeve 2, thereby facilitating and quickly assembling the resistance rod of the agricultural tiller. Subsequently, the cotter pin 5 and the pin 3 are removed, and the plug sleeve 2 can be removed to disassemble the resistance rod, thus improving the problem of time-consuming and laborious installation and disassembly of the resistance rod of small mountain agricultural tillers.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connecting structure for an agricultural tiller, characterized in that: It includes a limiting sleeve (1), a plug sleeve (2) and a pin (3). The limiting sleeve (1) is installed on the agricultural tiller. The plug sleeve (2) is slidably inserted on the limiting sleeve (1). The plug sleeve (2) is connected to the resistance rod of the agricultural tiller. Multiple pins (3) are slidably inserted on the limiting sleeve (1) and multiple pins (3) are inserted on the plug sleeve (2).

2. The agricultural machinery connection structure according to claim 1, characterized in that: The plug sleeve (2) is provided with a positioning block (4) at one end facing the limiting sleeve (1), and the limiting sleeve (1) is provided with a positioning groove (11) for the positioning block (4) to be inserted.

3. The agricultural machinery connection structure according to claim 2, characterized in that: The cross-sectional dimensions of the positioning block (4) gradually increase from the direction closer to the limiting sleeve (1) to the direction farther away from the limiting sleeve (1).

4. The agricultural machinery connection structure according to claim 1, characterized in that: The pin (3) has a cotter pin (5) at one end that passes through the limiting sleeve (1) and the insertion sleeve (2).

5. The agricultural machinery connection structure according to claim 1, characterized in that: The limiting sleeve (1) is provided with a hinge assembly (6) for hinged connection with the agricultural tiller. The hinge assembly (6) includes a deformation plate (61), a support plate (62) and a hinge shaft (63). Two deformation plates (61) are provided at intervals on the limiting sleeve (1). The support plate (62) is provided on the agricultural tiller and is used to insert between the two deformation plates (61). The hinge shaft (63) passes through the two deformation plates (61) and the support plate (62).

6. The agricultural machinery connection structure according to claim 5, characterized in that: The hinge shaft (63) is threaded to both deformation plates (61), and the threads connecting the hinge shaft (63) and the two deformation plates (61) are arranged in opposite directions.

7. The agricultural machinery connection structure according to claim 5, characterized in that: A gasket (7) is provided between the deformation plate (61) and the support plate (62).

8. The agricultural machinery connection structure according to claim 5, characterized in that: The hinge shaft (63) has a limit nut (8) threaded at one end through the deformation plate (61) and the support plate (62).

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