Self-adaptive navigation automatic mowing device

Abstract

The utility model discloses a self-adaptive navigation automatic mowing device which comprises a mowing machine and further comprises two supporting seats, a driving wheel, a loading wheel, a tensioning device, a caterpillar band and a baffle, the two supporting seats are arranged on the two sides of the mowing machine respectively, the driving wheel and the tensioning device are arranged at the two ends of each supporting seat respectively, and the caterpillar band is arranged on the driving wheel. The driving wheel is arranged on the supporting seat, the tensioning device is arranged on the driving wheel, the loading wheels are arranged between the driving wheel and the tensioning device, the crawler belt is arranged on the loading wheels, the driving wheel and the tensioning device in a sleeving mode, the two baffles are arranged at the two ends of the supporting seat respectively, and the baffles are located on the outer side of the crawler belt. Therefore, the friction force between the crawler belt and the baffle is counteracted.

Description

Technical Field

[0001] This utility model relates to the field of garden tool technology, specifically to an automatic lawn mowing device with adaptive navigation. Background Technology

[0002] Mowing is one of the main ways to utilize high-yield natural grasslands and artificial grasslands. Its purpose is to obtain fresh forage for livestock, or to process the forage into silage, semi-dry silage or hay that can be stored for a long time to feed livestock, thus affecting the botanical composition of the grass layer and the yield of regenerated grass.

[0003] Existing lawnmowers are driven by tracks when moving. The clockwise and counterclockwise rotation of the tracks determines the forward and backward movement of the lawnmower. However, the existing track mechanism is prone to the tracks becoming loose and falling off during use, often requiring the machine to be stopped for adjustment, which is time-consuming, labor-intensive, and affects work efficiency. Utility Model Content

[0004] The present invention aims to overcome the shortcomings of existing track mechanisms, such as the tracks easily becoming loose and falling off during use, often requiring machine shutdown for adjustment, which is time-consuming, labor-intensive, and affects work efficiency.

[0005] An adaptive navigation automatic lawn mowing device is proposed, including a lawn mower, a support base, a drive wheel, a load-bearing wheel, a tensioning device, a track, and baffles. There are two support bases, which are respectively located on both sides of the lawn mower. Each support base has a drive wheel and a tensioning device at both ends. There are multiple load-bearing wheels, which are all located in the middle of the drive wheel and the tensioning device. The track is fitted on the load-bearing wheel, the drive wheel, and the tensioning device. There are three baffles, which are respectively located at both ends and the middle of the support base, and the baffles are located on the outside of the track.

[0006] In this utility model, a tensioning device is provided at the end of the support base. The pressure sensor inside the tensioning device constantly measures the tension of the track. When the tension is insufficient, the electric push rod will automatically push the tensioning wheel outward to perform secondary tensioning on the track, thereby preventing the track from falling off due to insufficient tension. A baffle is provided on the outside of the track. When the track falls off, the baffle will restrict the track from the outside, thereby preventing the track from falling off completely. This solves the problem mentioned in the background that the existing track mechanism is prone to track loosening and falling off during use, often requiring machine shutdown for adjustment, which is time-consuming, labor-intensive, and affects work efficiency.

[0007] In a preferred embodiment of the present invention, a track is provided on the inner wall of the track, and the drive wheel meshes with the track on the inner wall of the track. Therefore, when the drive wheel rotates, the lawnmower can be moved by means of the track and the track.

[0008] In a preferred embodiment of the present invention, the tensioning device includes an electric push rod, a sliding rod, a fixed rod, a tensioning wheel, and a pressure sensor. The electric push rod is connected to a support base. The fixed rod is located at one end of the electric push rod and connected to it. One end of the sliding rod is slidably disposed inside the fixed rod. The pressure sensor is disposed inside the fixed rod and contacts the end of the sliding rod. The tensioning wheel is connected to the other end of the sliding rod and contacts the inner wall of the track. When the track tension is insufficient, the electric push rod can be activated, and then the electric push rod can push the tensioning wheel outward through the sliding rod and the fixed rod, thereby tensioning the track.

[0009] In a preferred embodiment of the present invention, a spring is fitted onto the sliding rod, and the two ends of the spring are in contact with the fixed rod and the sliding rod, respectively. When the tension of the track is insufficient, the spring will push the sliding rod and the tension wheel outward. At this time, the force applied by the sliding rod to the pressure sensor will decrease. When the force applied by the sliding rod to the pressure sensor is less than the standard, the pressure sensor will transmit a signal to the control circuit board, and then the control circuit board will activate the electric push rod to push the fixed rod and the tension wheel outward.

[0010] In a preferred embodiment of the present invention, the other end of the electric push rod is further provided with a housing. Inside the housing are a control circuit board, a signal transmitter, and a battery. The control circuit board is connected to the pressure sensor and the electric push rod. The signal transmitter and the battery are respectively located on both sides of the control circuit board and are connected to the control circuit board. A baffle is located on one side of the housing. When the control circuit board receives a signal from the pressure sensor and starts the electric push rod, it also sends the data measured by the pressure sensor to the operator through the signal transmitter to remind the operator.

[0011] In a preferred embodiment of the present invention, the baffle includes a middle baffle and end baffles. The middle baffle is vertically connected to the middle position of the support base. There are two end baffles, which are located at the two ends of the support base respectively. Both the middle baffle and the end baffles are located on the outer side of the track. When the track moves outward and falls off, the baffles will abut against the track from the outside of the track, thereby preventing the track from falling off further.

[0012] In a preferred embodiment of the present invention, both ends of the end baffle and the middle baffle are provided with an inclination angle. When the track rotates, the rotating track will directly contact the middle position of the end baffle and the middle baffle, thereby preventing the protrusions on the track from getting stuck at both ends of the baffle.

[0013] In a preferred embodiment of the present invention, the tops of both the end baffle and the middle baffle are higher than the track. Therefore, when the track comes off, the baffle will restrict the position of the track from the side, thereby preventing the track from coming off the top of the baffle.

[0014] In a preferred embodiment of the present invention, multiple sets of rollers are provided on both the end baffle and the middle baffle. When the track rotates, the rollers will rotate along with the track, thereby offsetting the friction between the track and the baffle.

[0015] The advantages of this utility model compared with the prior art are:

[0016] In this invention, the tension of the track is constantly measured when the lawnmower is moving. When the track tension is insufficient, the tensioning device will re-tension the track through the electric push rod and tensioning wheel to prevent the track from falling off due to insufficient tension. When the track tends to fall off, the baffle will rub against the outside of the track to restrict the position of the track and prevent it from falling off. When the track rotates, the roller on the baffle will rotate synchronously with the track to counteract the friction between the track and the baffle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an automatic lawn mowing device with adaptive navigation.

[0018] Figure 2 A schematic diagram showing the connection between the support base and the lawnmower structure of an adaptive navigation automatic lawnmower device;

[0019] Figure 3 A schematic diagram of the support structure for an adaptive navigation automatic lawn mowing device;

[0020] Figure 4 A schematic diagram showing the connection between the support base and the tensioning device of an adaptive navigation automatic lawn mower.

[0021] Figure 5 for Figure 4 Enlarged view of point A;

[0022] Figure 6 This is a schematic diagram showing the connection between the sliding rod and the fixed rod of an adaptive navigation automatic lawnmower (the fixed rod is a single unit; a section has been removed to show the internal structure).

[0023] Figure 7 A schematic diagram showing the connection between the support base and the housing structure of an adaptive navigation automatic lawn mower;

[0024] Figure 8 This is a schematic diagram of the internal structure of the housing of an adaptive navigation automatic lawnmower (the housing is a single unit, with a section removed to show the internal structure).

[0025] Figure 9 A schematic diagram showing the connection between the baffle and the roller structure of an adaptive navigation automatic lawn mower;

[0026] In the diagram: 1-Lawn mower, 2-Support base, 3-Drive wheel, 4-Road wheel, 5-Tensioning device, 51-Electric push rod, 52-Sliding rod, 53-Fixed rod, 54-Tensioning wheel, 55-Pressure sensor, 56-Spring, 6-Track, 61-Chain track, 7-Baffle, 71-Intermediate baffle, 72-End baffle, 73-Roller, 8-Housing, 81-Control circuit board, 82-Signal transmitter, 83-Battery Detailed Implementation

[0027] The following will refer to the appendix in the embodiments of this utility model. Figure 1-9 The technical solutions in the embodiments of this utility model will be described in detail below.

[0028] like Figures 1-3 As shown, an adaptive navigation automatic lawn mowing device includes a lawnmower 1 (the lawnmower 1 used is model MC700, which is an existing product and will not be described in detail). A support base 2 is provided on both sides of the lawnmower 1.

[0029] like Figures 1-3 As shown, the support base 2 is set along the length of the lawnmower 1, and both support bases 2 are welded to the lawnmower 1. The two ends of the support base 2 are respectively provided with drive wheels 3 and tensioning devices 5, and the drive wheels 3 and tensioning devices 5 are both set above the support base 2.

[0030] like Figures 1-3 As shown, the drive wheel 3 is connected to the power unit inside the lawnmower 1 to provide power for the movement of the lawnmower 1. The tensioning device 5 is connected to the support base 2, and five support wheels are provided below the support base 2.

[0031] like Figures 1-3 As shown, five support wheels are positioned between the drive wheel 3 and the tensioning device 5, and are arranged along the length of the support base 2. All five support wheels are rotatably connected to the support base 2 via a rotating shaft. The track 6 is fitted onto the support wheels, drive wheel 3, and tensioning device 5. The track 6 is made of rubber, which has low noise and can effectively absorb vibration, reducing equipment wear and operator fatigue.

[0032] like Figures 1-3 As shown, the inner wall of the track 6 is provided with two sets of track rails 61. The drive wheel 3 meshes with the track rails 61 on the track 6. Therefore, when the drive wheel 3 rotates, it can drive the track 6 to rotate synchronously. When the track 6 rotates, it can drive the lawnmower 1 to move. The clockwise and counterclockwise rotation of the drive wheel 3 determines the forward and backward movement of the lawnmower 1.

[0033] like Figures 1-3As shown, after the track 6 is fitted onto the tensioning device 5, the tensioning device 5 will push the track 6 outward to ensure the tension of the track 6, thereby preventing the middle section of the track 6 from falling onto the support seat 2 due to insufficient tension.

[0034] like Figures 1-3 As shown, when the track 6 is in operation, the tensioning device 5 will constantly measure the tension of the aluminum track 6. When the tension of the track 6 is insufficient, the tensioning device 5 will automatically tension the track 6 to avoid the track 6 from falling off due to insufficient tension.

[0035] like Figures 1-3 As shown, the load-bearing wheel 4 has a groove in the middle, so the cross-sectional shape of the load-bearing wheel 4 is "H". Both sets of track rails 61 pass through the middle groove of the load-bearing wheel 4. The support base 2 has baffles 7 at both ends and in the middle.

[0036] like Figures 1-3 As shown, the baffle 7 is located on the outside of the track 6. When the track 6 moves outward and falls off, the baffle 7 will abut against the track 6 from the outside, thereby preventing the track 6 from falling off further.

[0037] like Figures 4-6 As shown, the tensioning device 5 includes an electric push rod 51, a sliding rod 52, a fixed rod 53, a tensioning wheel 54, and a pressure sensor 55. The electric push rod 51 is arranged above the support base 2 along the length direction of the support base 2, and the electric push rod 51 is located at the end of the support base 2.

[0038] like Figures 4-6 As shown, the fixed rod 53 is located at one end of the electric push rod 51, and the end of the fixed rod 53 is welded to the output end of the electric push rod 51. Therefore, when the electric push rod 51 is started, it can drive the fixed rod 53 to move back and forth. The sliding rod 52 is located at the end of the fixed rod 53.

[0039] like Figures 4-6 As shown, one end of the sliding rod 52 is inserted into the inside of the fixed rod 53, and the other end of the sliding rod 52 is provided with a tension wheel 54. The tension wheel 54 is rotatably connected to the sliding rod 52. After the track 6 is fitted onto the support seat 2, the drive wheel 3 will mesh with the track 61.

[0040] like Figures 4-6 As shown, the tension wheel 54 is positioned in the middle of the two sets of track rails 61 and contacts the inner wall of the track 6. Then, the two sets of track rails 61 pass through the middle groove of the road wheel 4 to complete the mounting.

[0041] like Figures 4-6As shown, when the electric push rod 51 pushes the tension wheel 54 outward, the tension wheel 54 can tension the track 6. The pressure sensor 55 is located at the end of the sliding rod 52 and is set inside the fixed rod 53. The pressure sensor 55 is connected to the fixed rod 53 by screws.

[0042] like Figures 4-6 As shown, the pressure sensor 55 is in contact with the sliding rod 52. When the electric push rod 51 pushes the fixed rod 53 outward, the fixed rod 53 will push the tension wheel 54 outward in sync through the sliding rod 52. The tension wheel 54 is in contact with the inner wall of the track 6 at the same time.

[0043] like Figures 4-6 As shown, the end of the sliding rod 52 located inside the fixed rod 53 will abut against the pressure sensor 55, and then the pressure sensor 55 will determine the force on the tension wheel 54. A spring 56 is sleeved on the sliding rod 52, and the two ends of the spring 56 abut against the fixed rod 53 and the sliding rod 52 respectively.

[0044] like Figures 4-6 As shown, when the track tension is insufficient, the spring 56 will push the sliding rod 52 and the tension wheel 54 outward. When the sliding rod 52 and the tension wheel 54 move outward, the force on the pressure sensor 55 will decrease, and then the electric push rod 51 will be activated.

[0045] like Figures 4-6 As shown, after the electric push rod 51 is started, it will push the fixed rod 53 outward until the pressure sensor 55 abuts against the end of the sliding rod 52, and the data obtained by the pressure sensor 55 meets the standard.

[0046] like Figures 4-6 As shown, the electric push rod 51 can be turned off to ensure that the track 6 is properly tensioned, thereby preventing the track 6 from falling off due to insufficient tension.

[0047] like Figures 7-8 As shown, one end of the electric push rod 51 is provided with a fixing rod 53, and the other end of the electric push rod 51 is provided with a housing 8. The housing 8 is welded to the support base 2. The inside of the housing 8 is provided with a control circuit board 81, which is connected to the bottom plate of the housing 8 by screws.

[0048] like Figures 7-8 As shown, the pressure sensor 55 is electrically connected to the control circuit board 81, and the control circuit board 81 is also electrically connected to the electric push rod 51. The control circuit board 81 is also provided with a signal transmitter 82 and a battery 83 on both sides, and the signal transmitter 82 and the battery 83 are both electrically connected to the control circuit board 81.

[0049] like Figures 7-8As shown, when the tension of the track 6 is insufficient, the spring 56 will push the sliding rod 52 and the tension wheel 54 outward. At this time, the force applied by the sliding rod 52 to the pressure sensor 55 will decrease. When the force applied by the sliding rod 52 to the pressure sensor 55 is less than the standard, the pressure sensor 55 will transmit a signal to the control circuit board 81.

[0050] like Figures 7-8 As shown, the control circuit board 81 then activates the electric push rod 51 to push the fixed rod 53 outward until the pressure sensor 55 abuts against the end of the sliding rod 52 and the force applied by the sliding rod 52 to the pressure sensor 55 reaches the target.

[0051] like Figures 7-8 As shown, when the force applied by the sliding rod 52 to the pressure sensor 55 reaches the target, the pressure sensor 55 will shut down the electric push rod 51 through the control circuit board 81. At the same time, the control circuit board 81 starts the electric push rod 51 upon receiving the signal from the pressure sensor 55.

[0052] like Figures 7-8 As shown, the control circuit board 81 also sends the data measured by the pressure sensor 55 to the operator via the signal transmitter 82, thereby reminding the operator that the battery 83 is electrically connected to the electric push rod 51 and the pressure sensor 55 to provide power to the electric push rod 51 and the pressure sensor 55.

[0053] like Figure 9 As shown, the baffle 7 includes a middle baffle 71 and an end baffle 72. Both the middle baffle 71 and the end baffle 72 are vertically arranged above the support base 2, and the lower ends of the middle baffle 71 and the end baffle 72 are fixedly connected to the support base 2 by bolts.

[0054] like Figure 9 As shown, the middle baffle 71 is located in the middle of the support base 2, and there are two end baffles 72, which are respectively located at both ends of the support base 2. Both the middle baffle 71 and the end baffles 72 are located on the outer side of the track 6, and the top of the middle baffle 71 and the end baffles 72 are high pressure tracks 6.

[0055] like Figure 9 As shown, when track 6 falls off, baffle 7 will restrict the position of track 6 from the side of track 6, thereby preventing track 6 from falling off the top of baffle 7. Both ends of end baffle 72 and middle baffle 71 are provided with inclination angles.

[0056] like Figure 9 As shown, when the track 6 rotates, the rotating track 6 will directly contact the middle position of the end baffle 72 and the middle baffle 71, so as to avoid the protrusions on the track 6 from getting stuck at both ends of the baffle 7. Multiple sets of rollers 73 are rotatably connected to the inner walls of the middle baffle 71 and the end baffle 72.

[0057] like Figure 9 As shown, the rollers 73 are arranged in opposite directions according to the length of the support base 2, and each roller 73 is rotatably connected to the preset grooves of the intermediate baffle 71 and the end baffle 72 through bearings. When the track 6 rotates, the rollers 73 will rotate with the track 6 to offset the friction between the track 6 and the baffle 7.

[0058] The movement process in this embodiment is as follows: After the track 6 is fitted onto the drive wheel 3, tension wheel 54 and load wheel 4, the end baffle 72 and the middle baffle 71 can be fixedly connected to the support base 2 by bolts. Then, the electric push rod 51 is activated to push the fixed rod 53, sliding rod 52 and tension wheel 54 outward.

[0059] During this process, the tension wheel 54 and the sliding rod 52 will stop moving first because they are against the track 6. Then the fixed rod 53 will continue to move outward under the action of the electric push rod 51. During the process of the tension wheel 54 and the sliding rod 52 stopping moving while the fixed rod 53 continues to move outward.

[0060] The fixed rod 53 compresses the spring 56, and then the spring 56 deforms and stores force until the end of the sliding rod 52 contacts the pressure sensor 55 and the data measured by the pressure sensor 55 meets the standard. Then the control circuit board 81 will turn off the electric push rod 51.

[0061] Then, when the track tension is insufficient, the spring 56 will use the stored force to pop the tension wheel 54 and the sliding rod 52 outward. At this time, the pressure sensor 55 will activate the electric push rod 51 to push the sliding rod 52 outward until the data measured by the pressure sensor 55 reaches the standard.

[0062] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. An adaptive navigation automatic lawn mowing device, comprising a lawnmower (1), characterized in that: It also includes a support base (2), a drive wheel (3), a load wheel (4), a tensioning device (5), a track (6), and a baffle (7). There are two support bases (2), and the two support bases (2) are respectively set on both sides of the lawnmower (1). Each support base (2) has a drive wheel (3) and a tensioning device (5) at both ends. There are multiple load wheels (4), which are all set in the middle of the drive wheel (3) and the tensioning device (5). The track (6) is fitted on the load wheel (4), the drive wheel (3), and the tensioning device (5). There are three baffles (7), which are respectively set at both ends and the middle of the support base (2), and the baffles (7) are located on the outside of the track (6).

2. The adaptive navigation automatic lawn mowing device according to claim 1, characterized in that: The inner wall of the track (6) is provided with a track (61), and the drive wheel (3) meshes with the track (61) on the inner wall of the track (6).

3. The adaptive navigation automatic lawn mowing device according to claim 1, characterized in that: The tensioning device (5) includes an electric push rod (51), a sliding rod (52), a fixed rod (53), a tensioning wheel (54), and a pressure sensor (55). The electric push rod (51) is connected to the support base (2). The fixed rod (53) is located at one end of the electric push rod (51) and connected to the electric push rod (51). One end of the sliding rod (52) is slidably disposed inside the fixed rod (53). The pressure sensor (55) is disposed inside the fixed rod (53) and is in contact with the end of the sliding rod (52). The tensioning wheel (54) is connected to the other end of the sliding rod (52) and is in contact with the inner wall of the track (6).

4. The adaptive navigation automatic lawn mowing device according to claim 3, characterized in that: A spring (56) is sleeved on the sliding rod (52), and the two ends of the spring (56) are in contact with the fixed rod (53) and the sliding rod (52) respectively.

5. An adaptive navigation automatic lawn mowing device according to claim 3, characterized in that: The other end of the electric push rod (51) is also provided with a housing (8). Inside the housing (8) are a control circuit board (81), a signal transmitter (82) and a battery (83). The control circuit board (81) is connected to the pressure sensor (55) and the electric push rod (51). The signal transmitter (82) and the battery (83) are respectively located on both sides of the control circuit board (81) and are connected to the control circuit board (81). A baffle (7) is located on one side of the housing (8).

6. The adaptive navigation automatic lawn mowing device according to claim 5, characterized in that: The baffle (7) includes a middle baffle (71) and an end baffle (72). The middle baffle (71) is vertically connected to the middle position of the support base (2). There are two end baffles (72), and the two end baffles (72) are located at the two ends of the support base (2) respectively. Both the middle baffle (71) and the end baffles (72) are located on the outside of the track (6).

7. An adaptive navigation automatic lawn mowing device according to claim 6, characterized in that: Both ends of the end baffle (72) and the middle baffle (71) are provided with an inclination angle.

8. An adaptive navigation automatic lawn mowing device according to claim 7, characterized in that: The tops of the end baffles (72) and the middle baffles (71) are both higher than the tracks (6).

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