Folding agricultural press wheel

Abstract

The utility model relates to a folding agricultural press wheel which comprises a main machine frame, a main press wheel set, a first folding wheel assembly, a second folding wheel assembly, a third folding wheel assembly, a fourth folding wheel assembly and a walking wheel assembly. The main frame is T-shaped, the first folding wheel assembly is horizontally folded from one side of the top end of the T shape to the middle of the T shape, and the second folding wheel assembly is horizontally folded from the other side of the top end of the T shape to the middle of the T shape; the third folding wheel assembly is folded upwards along the first folding wheel assembly; the fourth folding wheel assembly is folded upwards along the second folding wheel assembly; the walking wheel assembly comprises a walking support rotationally connected with the main machine frame, wheels rotationally connected with the walking support and a fourth oil cylinder arranged between the main machine frame and the walking support. The press wheel has the advantages that the press wheel can be folded in a segmented mode, then the press width is increased, the press efficiency is improved, meanwhile, during folding, tires do not sideslip, and the service life of the tires is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a foldable agricultural pressing wheel. Background Art

[0002] The existing pressing wheel is used in a relatively extensive manner. It is usually driven by a tractor to press the fields. With the expansion of cultivated areas, in order to improve efficiency, users require that the width of a single pressing operation be increased to achieve improved efficiency. However, if the pressing wheel is made too long, when the tractor drives the pressing wheel to move around the field, the roads in the fields are generally very narrow, usually three meters, and the widened pressing wheel cannot pass through, so the pressing wheel needs to be folded.

[0003] Our company's early patented product, application number 202222401654.8, is a patent for a foldable pressure wheel. The patent includes a traction frame, an intermediate pressure wheel assembly, a left pressure wheel assembly, a right pressure wheel assembly, and a drive device. The intermediate pressure wheel assembly includes a rectangular intermediate frame and an intermediate pressure wheel. The drive device is a hydraulic cylinder. When the pressure wheel is folded, the tire needs to slide sideways, which causes rapid tire wear and needs to be solved.

[0004] Among the existing patents in China, the patent with application number CN201420526974.9 is titled "A patent for a pressing wheel mechanism with adjustable pressing force, pressing angle and wheelbase". The length of the pressing wheel in this patent cannot be adjusted and is imperfect; the patent with application number CN202023044103.8 is titled "A patent for a contoured transmission pressing wheel device with a depth-limiting function". This patent also has the problems mentioned above and needs to be solved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a foldable agricultural pressing wheel. The device can fold the pressing wheel in sections, thereby lengthening the pressing width and improving the pressing efficiency. At the same time, when folding, the tire does not slide sideways, thereby increasing the service life of the tire.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A folding agricultural pressing wheel comprises a main frame connected to a tractor by transmission, a main bearing seat rotatably connected to the main frame at one end, a main pressing wheel assembly rotatably connected to the other end of the main bearing seat, a first folding wheel assembly connected to one side of the main frame, a second folding wheel assembly connected to the other side of the main frame, a third folding wheel assembly provided on the first folding wheel assembly, a fourth folding wheel assembly provided on the second folding wheel, and a traveling wheel assembly provided on the main frame;

[0008] The main frame is T-shaped, the first folding wheel assembly is horizontally folded from one side of the top of the T-shape to the middle of the T-shape, and the second folding wheel assembly is horizontally folded from the other side of the top of the T-shape to the middle of the T-shape; the third folding wheel assembly is folded upward along the first folding wheel assembly; the fourth folding wheel assembly is folded upward along the second folding wheel assembly.

[0009] Furthermore, the traveling wheel assembly includes a traveling bracket rotatably connected to the main frame, a wheel rotatably connected to the traveling bracket, and a fourth oil cylinder arranged between the main frame and the traveling bracket.

[0010] Furthermore, the first folding wheel assembly includes a first folding frame rotatably connected to one side of the T-shaped top end of the main frame, a first folding wheel group connected to the first folding frame, and a first oil cylinder provided between the first folding frame and the main frame.

[0011] Furthermore, an L-shaped connecting plate is fixedly connected to the first folding frame, and the top end of the L-shaped connecting plate is rotatably connected to the main frame; one side of the L-shape is hinged to the cylinder rod of the first oil cylinder; and the cylinder body of the first oil cylinder is hinged to the main frame.

[0012] Furthermore, the second folding wheel assembly includes a second folding frame, a second connecting plate fixed to the second folding frame, and a second oil cylinder for driving the second folding frame to fold; the second folding frame is rotatably connected to the main frame through the second connecting plate and the rotating shaft; the cylinder body of the second oil cylinder is hinged to the main frame, and the cylinder rod of the second oil cylinder is hinged to the second connecting plate.

[0013] Furthermore, the fourth folding wheel assembly includes a fourth folding frame rotatably connected to the second folding frame at one end away from the second connecting plate, a fourth folding wheel group installed on the fourth folding frame, and a third oil cylinder arranged between the fourth folding frame and the second folding frame.

[0014] Furthermore, a bracket is provided on the second folding frame; and the fourth folding frame is overlapped on the bracket after being folded.

[0015] Furthermore, the third folding wheel assembly has the same structure as the fourth folding wheel assembly.

[0016] Furthermore, a clamping device is provided between the first folding frame and the main frame; the clamping device includes a fixed frame provided on the main frame, the fixed frame is provided with a clamping slot, and the first folding frame is provided with a clamping plate, and after the first folding frame is folded, the clamping plate is clamped to the clamping slot through a clamping shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This device can fold the pressing wheel in sections, thereby lengthening the pressing width and improving the pressing efficiency. At the same time, when folding, the cylinder rod of the fourth cylinder extends, and the cylinder rod drives the tire on the walking frame to contact the ground, preventing the tire from sliding, thereby increasing the service life of the tire;

[0019] 2. A clamping device is provided between the first folding frame and the main frame; the clamping device includes a fixed frame provided on the main frame, the fixed frame having a clamping slot, and a clamping plate provided on the first folding frame. After the first folding frame is folded, the clamping plate is clamped to the clamping slot via a clamping shaft. This ensures that the first folding frame and the main frame are locked during folding and transportation to prevent shaking;

[0020] 3. Through the provided bracket, the fourth folding frame is overlapped on the bracket after being folded, thereby preventing the fourth folding wheel assembly from being suspended in the air when folded, thereby increasing the wear of the third oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 for Figure 1 A magnified view of point A;

[0023] Figure 3 for Figure 1 Enlarged view of point B;

[0024] Figure 4 for Figure 1 Enlarged view of point C;

[0025] Figure 5 This is a schematic diagram of the connection between the main frame and the traveling bracket.

[0026] Description of the accompanying figure numbers:

[0027] 1-main frame, 11-card slot, 12-fixed frame, 13-first oil cylinder, 14-second oil cylinder;

[0028] 2-first folding wheel assembly, 21-card plate, 22-card connecting shaft, 23-connecting plate;

[0029] 3-Third folding wheel assembly;

[0030] 4- Main pressure wheel set;

[0031] 5-travel wheel assembly, 51-wheel, 52-travel bracket, 53-fourth oil cylinder;

[0032] 6-second folding wheel assembly, 61-second connecting plate, 62-rotating shaft, 63-bracket, 64-third oil cylinder;

[0033] 7-fourth folding wheel assembly, 71-fourth folding frame, 72-second rotating shaft. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] Example 1

[0036] See also Figure 1-Figure 5 shown

[0037] A folding agricultural pressing wheel, comprising a main frame 1 connected to a tractor (power unit) by transmission, a main bearing seat rotatably connected to the main frame 1 at one end, a main pressing wheel assembly 4 rotatably connected to the other end of the main bearing seat, a first folding wheel assembly 2 connected to one side of the main frame 1, a second folding wheel assembly 6 connected to the other side of the main frame 1, a third folding wheel assembly 3 provided on the first folding wheel assembly 2, a fourth folding wheel assembly 7 provided on the second folding wheel 6, and a walking wheel assembly 5 provided on the main frame 1;

[0038] The detailed structure is that the main frame 1 is T-shaped, the top of the T-shape is a rectangular frame, and the middle of the T-shape is a square tube; the square tube and the rectangular frame are vertically welded firmly;

[0039] The rectangular frame is connected to the main pressing wheel assembly 4 through the main bearing seat. The main pressing wheel assembly 4 can swing in the rectangular frame and rotate on its own to press the soil.

[0040] The pressing wheel assembly is an existing technology. For its specific structure, please refer to our company's early patent 2022224016548;

[0041] When folding is required, Figure 1 As shown, first, the third folding wheel assembly 3 is folded upward along the first folding wheel assembly 2 and then overlapped on the first folding wheel assembly 2; then the first folding wheel assembly 2 is horizontally folded from one side of the top of the T-shape to the square tube in the middle of the T-shape;

[0042] The second folding wheel assembly 6 is horizontally folded from the square tube on the other side of the T-shape top toward the middle of the T-shape; the fourth folding wheel assembly 7 is folded upward along the second folding wheel assembly 6.

[0043] like Figure 5 As shown, the traveling wheel assembly 5 includes a traveling bracket 52 rotatably connected to the main frame 1 , a wheel 51 rotatably connected to the traveling bracket 52 , and a fourth oil cylinder 53 provided between the main frame 1 and the traveling bracket 52 .

[0044] When the folding is completed, the fourth oil cylinder 53 is started, the oil cylinder rod pushes the traveling bracket 52, the traveling bracket 52 drives the wheel 51 to contact the ground, the main pressing wheel group 4 leaves the ground, and the tractor drives the entire device to move through the main frame 1;

[0045] The first folding wheel assembly 2 includes a first folding frame rotatably connected to one side of the T-shaped top end of the main frame 1, a first folding wheel group connected to the first folding frame, and a first oil cylinder 13 provided between the first folding frame and the main frame 1.

[0046] like Figure 2 As shown, an L-shaped connecting plate 23 is fixedly connected to the first folding frame, and the top of the L is rotatably connected to the main frame 1; one side of the L is hinged to the cylinder rod of the first oil cylinder 13; and the cylinder body of the first oil cylinder 13 is hinged to the main frame 1.

[0047] When folding, the cylinder rod of the first oil cylinder 13 extends, pushing the L-shaped connecting plate 23 to swing around the hinge point between the L-shaped connecting plate 23 and the main frame 1 until the first folding frame is parallel to the square tube of the main frame 1;

[0048] like Figure 1 、 2 As shown, the second folding wheel assembly 6 includes a second folding frame, a second connecting plate 61 fixed to the second folding frame, and a second cylinder 14 for driving the second folding frame to fold; the second folding frame is rotatably connected to the main frame 1 through the second connecting plate 61 and the rotating shaft 62; the cylinder body of the second cylinder 14 is hinged to the main frame 1, and the cylinder rod of the second cylinder 14 is hinged to the second connecting plate 61.

[0049] The detailed structure is that the second connecting plate 61 is L-shaped, and the top position is hinged to the main frame 1 through the rotating shaft 62; one side is hinged to the cylinder rod of the second cylinder 14; when folding, the cylinder rod extends, driving one side of the second connecting plate 61 to rotate around the rotating shaft 62, and the second connecting plate 61 drives the second folding frame to rotate until the second folding frame is parallel to the square tube of the main frame 1.

[0050] The fourth folding wheel assembly 7 includes a fourth folding frame 71 rotatably connected to the second folding frame at one end away from the second connecting plate 61 , a fourth folding wheel group installed on the fourth folding frame, and a third oil cylinder 64 provided between the fourth folding frame 71 and the second folding frame.

[0051] A bracket 63 is provided on the second folding frame; and the fourth folding frame 71 is overlapped on the bracket 63 after being folded.

[0052] like Figure 4 As shown, the second folding frame and the fourth folding frame 71 are rotatably connected via a second rotating shaft 72;

[0053] Figure 1The middle shows the third folding wheel assembly 3 folded, refer to Figure 1 As shown, when the fourth folding frame 71 needs to be folded, the third oil cylinder 64 is started, the oil cylinder rod contracts, and the fourth folding frame 71 rotates upward along the second rotating shaft 72. When the fourth folding frame 71 overlaps with the top of the bracket 63, the third oil cylinder 64 stops moving.

[0054] The fourth folding frame 71 drives the fourth folding wheel group and is connected to the bracket 63. During transportation, in order to prevent shaking, the fourth folding frame 71 can be fixed to the bracket 63 by passing a wire through the hole on the bracket 63 to prevent damage to the equipment caused by shaking.

[0055] The third folding wheel assembly 3 and the fourth folding wheel assembly 7 have the same structure.

[0056] The structure of the four folding wheel groups is the same as that of the main folding wheel group 4, so I will not go into details.

[0057] The length of the four suppressing wheel groups in this application is about 8 meters. The fourth oil cylinder 53 was originally designed as one, which was located in the middle of the rectangular frame of the main suppressing wheel group 4 and the middle of the traveling bracket 52. During use, it was found that due to its heavy weight, the fourth oil cylinder 53 caused the traveling bracket 52 and the middle of the rectangular frame to deform after being used for a period of time. Therefore, it was improved to have two fourth oil cylinders 53, and they were respectively located on the two cross beams of the frame of the traveling bracket 52. This dispersed the weight and avoided deformation of the frame of the traveling bracket 52 and the main frame 1.

[0058] The working process of this utility model is:

[0059] When folding is required, first fold the third folding wheel assembly 3 vertically onto the first folding frame (or fold the fourth folding wheel assembly 7 vertically onto the second folding frame), then start the first oil cylinder 13, and then rotate the first folding frame horizontally inward to one side of the square tube of the main frame 1 (or start the second oil cylinder 14 to rotate the second folding frame horizontally to the other side of the square tube of the main frame 1). If it needs to be kept stationary for a long time, such as during transportation, fix the first and second folding frames to the square tube with wire to prevent damage caused by shaking.

[0060] When turning around in the field, there is no need to fix it, just fold it;

[0061] If it is necessary to move the farmland over a short distance to suppress the farmland, the fourth oil cylinder 53 is started to push the traveling bracket 52 downward, and the traveling bracket 52 drives the wheel 1 to contact the ground. When the tire of the wheel 1 contacts the ground, the top surface of the tire contacts first to avoid the side of the tire contacting the ground and causing rapid wear of the tire.

[0062] Example 2

[0063] The structure of this embodiment is basically the same as that of embodiment 1.

[0064] The difference is that

[0065] like Figure 2 As shown; a clamping device is provided between the first folding frame and the main frame 1; the clamping device includes a fixing frame 12 provided on the main frame 1, the fixing frame 12 is provided with a clamping slot 11, the first folding frame is provided with a clamping plate 21, and after the first folding frame is folded, the clamping plate 21 is clamped with the clamping slot 11 through a clamping shaft 22;

[0066] This embodiment is a safety measure to prevent the first folding frame and the second folding frame from shaking when they are not moved for a long time and need to be transported. The first folding frame and the second folding frame are connected to the main frame 1 through a clamping shaft.

[0067] The working principle of this embodiment is basically the same as that of embodiment 1, and will not be described here in detail.

[0068] Example 3

[0069] The structure of this embodiment is basically the same as that of embodiment 2.

[0070] The difference is that

[0071] like Figure 2 As shown,

[0072] The fixing frame 12 is provided with two inclined ribs for strengthening the connection strength between the fixing frame 12 and the main frame 1 to avoid welding cracks caused by shaking during use.

[0073] The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A foldable agricultural pressing wheel, characterized by: The invention comprises a main frame (1) connected to the tractor transmission, a main bearing seat rotatably connected to the main frame (1) at one end, a main pressing wheel assembly (4) rotatably connected to the other end of the main bearing seat, a first folding wheel assembly (2) connected to one side of the main frame (1), a second folding wheel assembly (6) connected to the other side of the main frame (1), a third folding wheel assembly (3) provided on the first folding wheel assembly (2), a fourth folding wheel assembly (7) provided on the second folding wheel assembly (6), and a walking wheel assembly (5) provided on the main frame (1); The main frame (1) is T-shaped, the first folding wheel assembly (2) is horizontally folded from one side of the top of the T-shape to the middle of the T-shape, and the second folding wheel assembly (6) is horizontally folded from the other side of the top of the T-shape to the middle of the T-shape; the third folding wheel assembly (3) is folded upward along the first folding wheel assembly (2); and the fourth folding wheel assembly (7) is folded upward along the second folding wheel assembly (6).

2. The foldable agricultural pressing wheel according to claim 1, characterized in that: The traveling wheel assembly (5) comprises a traveling bracket (52) rotatably connected to the main frame (1), a wheel (51) rotatably connected to the traveling bracket (52), and a fourth oil cylinder (53) provided between the main frame (1) and the traveling bracket (52).

3. The foldable agricultural pressing wheel according to claim 2, characterized in that: The first folding wheel assembly (2) comprises a first folding frame rotatably connected to one side of the T-shaped top end of the main frame (1), a first folding wheel group connected to the first folding frame, and a first oil cylinder (13) provided between the first folding frame and the main frame (1).

4. The foldable agricultural pressing wheel according to claim 3, characterized in that: An L-shaped connecting plate (23) is fixedly connected to the first folding frame, and the top end of the connecting plate (23) is rotatably connected to the main frame (1); one side of the L-shape is hinged to the cylinder rod of the first oil cylinder (13); and the cylinder body of the first oil cylinder (13) is hinged to the main frame (1).

5. The foldable agricultural pressing wheel according to claim 4, characterized in that: The second folding wheel assembly (6) comprises a second folding frame, a second connecting plate (61) fixed to the second folding frame, and a second oil cylinder (14) for driving the second folding frame to fold; the second folding frame is rotatably connected to the main frame (1) via the second connecting plate (61) and the rotating shaft (62); the cylinder body of the second oil cylinder (14) is hinged to the main frame (1), and the cylinder rod of the second oil cylinder (14) is hinged to the second connecting plate (61).

6. The foldable agricultural pressing wheel according to claim 3, characterized in that: The fourth folding wheel assembly (7) comprises a fourth folding frame (71) rotatably connected to the end of the second folding frame away from the second connecting plate (61), a fourth folding wheel group installed on the fourth folding frame, and a third oil cylinder (64) provided between the fourth folding frame (71) and the second folding frame.

7. The foldable agricultural pressing wheel according to claim 6, characterized in that: A bracket (63) is provided on the second folding frame; and the fourth folding frame (71) is overlapped on the bracket (63) after being folded.

8. The foldable agricultural pressing wheel according to claim 7, characterized in that: The third folding wheel assembly (3) and the fourth folding wheel assembly (7) have the same structure.

9. The foldable agricultural pressing wheel according to claim 3, characterized in that: A clamping device is provided between the first folding frame and the main frame (1); the clamping device comprises a fixing frame (12) provided on the main frame (1), a clamping slot (11) provided on the fixing frame (12), and a clamping plate (21) provided on the first folding frame. After the first folding frame is folded, the clamping plate (21) is clamped with the clamping slot (11) via a clamping shaft (22).

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