Hybrid tracked mower

Abstract

The utility model discloses a kind of hybrid power crawler-type mower, it includes main seat, fuel engine, control system, crawler mechanism and mowing mechanism;Main seat is also installed with generator and battery;Mowing mechanism includes cover body and knife roll, further include the movable plate of rotation installation in the front side of cover body, electric push rod is connected between movable plate and cover body, the edge of movable plate is rotationally installed with curtain;Cover body is rotationally installed relative to main seat, and electric hydraulic cylinder is connected between the two, and electric hydraulic cylinder is connected electric hydraulic station by hydraulic pipeline;Electric push rod, electric hydraulic station and crawler drive motor are all connected battery, and three are respectively connected control system by driver. The mower of the application adopts the form of hybrid power, and the fuel engine directly drives the knife roll to rotate to ensure the effect of cutting grass and branches. At the same time, the electrically driven part can improve the adjustment flexibility and accuracy of the mowing mechanism and the walking accuracy of the crawler mechanism.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to a hybrid tracked lawnmower. Background Technology

[0002] Currently, with the continuous improvement of agricultural mechanization, lawnmowers are increasingly widely used in orchards, pastures, roadsides, and landscaping. Traditional lawnmowers are mostly driven by a single power source, such as a pure fuel engine or a pure electric drive. While fuel-driven models have strong power output, they lack control precision and flexibility, especially in complex terrain or environments requiring fine adjustment of mowing height, making precise control difficult. Pure electric lawnmowers, while offering good operability and low noise, are limited by battery capacity, resulting in poor range and difficulty in meeting the needs of long-term, large-scale operations.

[0003] In the prior art, patent CN 117561871 A provides a typical lawnmower, which includes components such as a power drive unit, a drive mechanism, and a lawnmower housing. Although this solution achieves remote control drive and improves operational safety, it still has some technical drawbacks: First, from the perspective of the power system, although it adopts a complex combination of a gasoline engine and a hydraulic system, its reliance on a hydraulic oil tank, multiple hydraulic cylinders, and a hydraulic motor results in a relatively complex system structure, high maintenance costs, and difficulty in achieving high control precision in the hydraulic system, affecting the overall operation and walking accuracy. Furthermore, the use of a hydraulic system increases the risk of leakage, which may not only affect the normal operation of the equipment but also lead to environmental pollution. Second, the adjustment mode of the mowing mechanism in this lawnmower is limited, making it difficult to meet different weeding needs. Utility Model Content

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a hybrid tracked lawnmower that can meet different weeding needs, has a guaranteed endurance, and has high control and walking accuracy.

[0005] Technical solution: To achieve the above objectives, the present invention provides a hybrid tracked lawn mower, which includes a main body, a fuel engine and a control system; track mechanisms are installed on the left and right sides of the main body, and a mowing mechanism is installed at the front end of the main body;

[0006] The main body is also equipped with a generator and a storage battery. The fuel engine is connected to the generator for driving, and the generator is connected to the storage battery.

[0007] The mowing mechanism includes a cover and a blade roller rotatably mounted inside the cover; the blade roller is driven by the fuel engine.

[0008] Each of the track mechanisms is connected to one of the track drive motors;

[0009] The lawn mowing mechanism also includes a movable plate rotatably mounted on the front side of the cover, an electric push rod connected between the movable plate and the cover, and a curtain rotatably mounted on the edge of the movable plate;

[0010] The cover is rotatably mounted relative to the main body, and an electro-hydraulic cylinder is connected between the two. The electro-hydraulic cylinder is connected to an electric hydraulic station through a hydraulic pipeline. The electric hydraulic station consists of a motor and an oil tank. By controlling the operation of the motor, the central rod of the electro-hydraulic cylinder can be extended and retracted.

[0011] The electric push rod, the electric hydraulic station, and the track drive motor are all connected to the battery, and each of them is connected to the control system via a driver.

[0012] By controlling different combinations of extension and retraction lengths of the electric push rod and the electro-hydraulic cylinder, different mowing modes can be achieved. When the grass needs to be completely cut, the cover is lowered; when the grass needs to be partially cut, the cover is raised as needed. When the grass is hard and long, or when it is necessary to break up branches that have fallen to the ground while mowing, the movable plate is raised; when the grass is soft, the movable plate is lowered.

[0013] Furthermore, the number of curtains is multiple, and all curtains are arranged in a straight line and closely; the material of the curtains is rubber.

[0014] Furthermore, a front guardrail is fixed to the front side of the cover; the front guardrail is located in front of the movable plate and is higher than the movable plate.

[0015] Furthermore, the rear side of the cover has a centrally located hinge and a side-mounted transmission cavity; the hinge is hinged to the main body via a pin; a transmission box is installed on the side of the cover, and a transmission shaft is rotatably installed in the transmission cavity; the transmission shaft and the pin are concentrically arranged, one end of the transmission shaft is connected to the output shaft of the fuel engine via a first belt assembly, and the other end is connected to the transmission box.

[0016] Furthermore, the fuel engine is located in the middle of the main body, and the track drive motor is located behind the fuel engine; the battery is installed behind the track drive motor, the generator is located above the track drive motor, and the generator and the fuel engine are connected by a second belt assembly.

[0017] Furthermore, the track drive motor includes a motor body and a gearbox with an offset output shaft; both ends of the gearbox have mounting flanges, and the outward-facing mounting flanges are fixed to the main body with screws; a mounting bracket is provided between the inward-facing mounting flanges of the two gearboxes corresponding to the two track drive motors, the generator is mounted above the mounting bracket, and the electro-hydraulic station is mounted below the mounting bracket. This structure utilizes the mounting flange on one side of the gearbox to mount the generator, reducing structural complexity, saving costs, and reducing the weight of the machine.

[0018] Furthermore, the control system is also connected to a remote control signal receiving module, which enables remote control of the lawnmower's operation.

[0019] Furthermore, the cutter roller includes a centrally located cutter shaft and multiple cutting blade units dispersed on the cutter shaft. The cutting blade units are Y-shaped and can effectively shred grass and branches.

[0020] Beneficial effects: The hybrid tracked lawnmower of this invention has the following beneficial effects:

[0021] (1) The tracked lawnmower of the present invention adopts a hybrid power system. The fuel engine directly drives the blade roller, which can ensure the effect of cutting grass and branches. At the same time, the electric drive part can use electronic control to precisely adjust the operating parameters of the electric push rod and the electro-hydraulic cylinder, and precisely control the operation of the track drive motor, which improves the adjustment flexibility and accuracy of the mowing mechanism, as well as the walking accuracy of the track mechanism. The fuel engine replenishes the battery with power through the generator, which can ensure that the battery always has power and will not affect the machine's working time due to range limitations.

[0022] (2) A movable plate controlled by an electric push rod is set in front of the mowing mechanism, and a curtain is set at the edge of the movable plate. In addition, the hood is rotated by an electro-hydraulic cylinder, and the combination of mowing height and entrance height can be set according to the actual weeding needs. The freely rotating curtain can facilitate the grass to enter the hood and prevent the grass fragments generated by the operation of the cutter roller from splashing.

[0023] (3) The front guardrail at the top of the cover not only serves as a protective barrier, but also pushes away the drooping branches when weeding in the orchard, preventing the drooping branches of the fruit trees from entering the cover. Attached Figure Description

[0024] Figure 1 A side view of a hybrid tracked lawnmower;

[0025] Figure 2 A 3D structural diagram of a hybrid tracked lawnmower;

[0026] Figure 3 A first-person view structural diagram of the lawnmower mechanism;

[0027] Figure 4 This is a second-view structural diagram of the lawnmower mechanism;

[0028] Figure 5 This is a layout diagram of the main body.

[0029] In the diagram: 1-Main seat; 2-Crawler mechanism; 3-Mowing mechanism; 31-Cutter roller; 31a-Cutter shaft; 31b-Cutter unit; 32-Cover; 32a-Hinge; 32b-Transmission chamber; 33-Moving plate; 34-Electric push rod; 35-Electro-hydraulic cylinder; 36-Blind curtain; 37-Front guardrail; 38-Transmission box; 39-Electro-hydraulic station; 4-Fuel engine; 5-Generator; 6-Battery; 7-Crawler drive motor; 71-Motor body; 72-Reduction gearbox; 81-First belt assembly; 82-Second belt assembly; 9-Mounting bracket. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] like Figure 1 and Figure 2 The hybrid tracked lawnmower shown includes a main body 1, a fuel engine 4, and a control system; track mechanisms 2 are installed on the left and right sides of the main body 1, and a mowing mechanism 3 is installed at the front end of the main body 1; each track mechanism 2 is connected to a track drive motor 7.

[0032] The main body 1 is also equipped with a generator 5 and a battery 6. The fuel engine 4 is driven by the generator 5, and the generator 5 is connected to the battery 6.

[0033] like Figure 3 and Figure 4 As shown, the mowing mechanism 3 includes a cover 32 and a blade roller 31 rotatably installed inside the cover 32; the blade roller 31 is driven by the fuel engine 4; the mowing mechanism 3 also includes a movable plate 33 rotatably installed on the front side of the cover 32, an electric push rod 34 is connected between the movable plate 33 and the cover 32, and a curtain 36 is rotatably installed on the edge of the movable plate 33;

[0034] The cover 32 is rotatably mounted relative to the main base 1, and an electro-hydraulic cylinder 35 is connected between the two. The electro-hydraulic cylinder 35 is connected to an electric hydraulic station 39 through a hydraulic pipeline. The electric hydraulic station 39 consists of a motor and an oil tank. By controlling the operation of the motor, the central rod of the electro-hydraulic cylinder 35 can be extended and retracted. The electro-hydraulic cylinder 35 and the electric hydraulic station 39 are existing technologies, and their structures will not be described in detail here.

[0035] The electric push rod 34, the electric hydraulic station 39, and the track drive motor 7 are all connected to the battery 6, and each of them is connected to the control system via a driver.

[0036] By controlling different combinations of extension and retraction lengths of the electric push rod 34 and the electro-hydraulic cylinder 35, different mowing modes can be achieved. When it is necessary to completely cut the grass, the cover 32 is lowered; when it is necessary to partially cut the grass, the cover 32 is raised as needed. When the grass is hard and long, or when it is necessary to break up branches that have fallen to the ground while mowing, the movable plate 33 is raised; when the grass is soft, the movable plate 33 is lowered.

[0037] The tracked lawnmower of this invention employs a hybrid power system. The fuel engine 4 directly drives the blade roller 31, ensuring effective grass and branch shredding. Simultaneously, the electric drive system allows for precise adjustment of the operating parameters of the electric push rod 34 and the electro-hydraulic cylinder 35 via electronic control, as well as precise control of the track drive motor 7. This enhances the adjustability and precision of the mowing mechanism 3, and improves the walking accuracy of the track mechanism 2. The fuel engine 4 replenishes the battery 6 via the generator 5, ensuring the battery 6 always has power and preventing range anxiety from affecting the machine's operating time.

[0038] The front of the mowing mechanism 3 is equipped with a movable plate 33 that is controlled to open and close by an electric push rod 34, and a curtain 36 is provided at the edge of the movable plate 33. In addition, the cover 32 is rotated by an electro-hydraulic cylinder 35. The combination of mowing height and entrance height can be set according to the actual weeding needs. The freely rotating curtain 36 can facilitate the entry of grass into the cover 32 and prevent grass fragments from splashing during the operation of the cutter roller 31.

[0039] Preferably, there are multiple curtains 36, all arranged closely in a straight line; the curtains 36 are made of rubber. In this way, each curtain 36 can rotate at the required angle, ensuring a complete enclosure of the front side and preventing grass or twig fragments from flying. Using rubber for the curtains 36 reduces wear and extends their service life.

[0040] Preferably, a front guardrail 37 is fixed to the front side of the cover 32; the front guardrail 37 is located in front of the movable plate 33 and is higher than the movable plate 33. The front guardrail 37 at the top front of the cover 32 not only serves a protective function, but also pushes away drooping branches during weeding operations in the orchard, preventing the drooping branches of the fruit trees from entering the cover 32.

[0041] Preferably, the rear side of the cover 32 has a centrally located hinge portion 32a and a side-mounted transmission cavity 32b; the hinge portion 32a is hinged to the main seat 1 via a pin; a transmission box 38 is installed on the side of the cover 32, and a transmission shaft is rotatably mounted in the transmission cavity 32b; the transmission shaft and the pin are concentrically arranged, one end of the transmission shaft is connected to the output shaft of the fuel engine 4 via a first belt assembly 81, and the other end is connected to the transmission box 38. With the above structure, a reliable rotatable connection can be established between the cover 32 and the main seat 1, as well as a reliable transmission relationship can be established between the fuel engine 4 and the cutter roller 31.

[0042] Preferably, such as Figure 2 As shown, the fuel engine 4 is located in the middle of the main body 1, and the track drive motor 7 is located behind the fuel engine 4; Figure 5 As shown, the battery 6 is installed behind the track drive motor 7, and the generator 5 is located above the track drive motor 7. The generator 5 is connected to the fuel engine 4 via a second belt assembly 82. This layout ensures balanced weight distribution across the lawnmower, guaranteeing operational stability.

[0043] like Figure 5 As shown, the track drive motor 7 includes a motor body 71 and a gearbox 72 with an offset output shaft. Both ends of the gearbox 72 have mounting flanges, with the outward-facing flanges fixed to the main body 1 by screws. A mounting bracket 9 is provided between the inward-facing mounting flanges of the two gearboxes 72 corresponding to the two track drive motors 7. The generator 5 is mounted above the mounting bracket 9, and the electro-hydraulic station 39 is mounted below the mounting bracket 9. This structure utilizes the mounting flange on one side of the gearbox 72 to mount the generator 5, reducing structural complexity, saving costs, and reducing the weight of the machine.

[0044] Preferably, the control system is also connected to a remote control signal receiving module, so that the lawnmower can be remotely controlled.

[0045] Preferably, the cutter roller 31 includes a centrally located cutter shaft 31a and a plurality of cutter units 31b dispersedly installed on the cutter shaft 31a. The cutter units 31b are Y-shaped and can achieve the effect of chopping grass and branches.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hybrid tracked lawnmower, comprising a main body (1), a fuel engine (4) and a control system; a track mechanism (2) is installed on the left and right sides of the main body (1), and a mowing mechanism (3) is installed at the front end of the main body (1). The main body (1) is also equipped with a generator (5) and a storage battery (6). The fuel engine (4) is connected to the generator (5) for driving. The generator (5) is connected to the storage battery (6). The mowing mechanism (3) includes a cover (32) and a blade roller (31) rotatably mounted inside the cover (32); the blade roller (31) is driven by the fuel engine (4); Its features are: Each of the track mechanisms (2) is connected to a track drive motor (7); The mowing mechanism (3) also includes a movable plate (33) rotatably mounted on the front side of the cover (32), an electric push rod (34) is connected between the movable plate (33) and the cover (32), and a curtain (36) is rotatably mounted on the edge of the movable plate (33). The cover (32) is rotatably mounted relative to the main seat (1), and an electro-hydraulic cylinder (35) is connected between the two. The electro-hydraulic cylinder (35) is connected to an electric hydraulic station (39) through a hydraulic pipeline. The electric push rod (34), the electric hydraulic station (39), and the track drive motor (7) are all connected to the battery (6), and each of them is connected to the control system through a driver.

2. The hybrid crawler mower of claim 1, wherein, The number of curtains (36) is multiple, and all curtains (36) are arranged in a straight line and closely; the material of the curtains (36) is rubber.

3. The hybrid tracked lawnmower according to claim 1, characterized in that, A front guardrail (37) is fixed to the front side of the cover (32); the front guardrail (37) is located in front of the movable plate (33) and is higher than the movable plate (33).

4. The hybrid tracked lawnmower according to claim 1, characterized in that, The rear side of the cover (32) has a centrally located hinge (32a) and a side-mounted transmission cavity (32b); the hinge (32a) is hinged to the main seat (1) via a pin; a transmission box (38) is installed on the side of the cover (32), and a transmission shaft is rotatably installed in the transmission cavity (32b); the transmission shaft and the pin are concentrically arranged, one end of the transmission shaft is connected to the output shaft of the fuel engine (4), and the other end is connected to the transmission box (38).

5. The hybrid tracked lawnmower according to claim 1, characterized in that, The fuel engine (4) is located in the middle of the main body (1), and the track drive motor (7) is located behind the fuel engine (4); the battery (6) is installed behind the track drive motor (7), and the generator (5) is located above the track drive motor (7).

6. The hybrid tracked lawnmower according to claim 5, characterized in that, The track drive motor (7) includes a motor body (71) and a gearbox (72) with an offset output shaft; both ends of the gearbox (72) have mounting flanges, and the outward mounting flanges are fixed to the main body (1) by screws; a mounting bracket (9) is provided between the inward mounting flanges of the two gearboxes (72) corresponding to the two track drive motors (7), the generator (5) is installed above the mounting bracket (9), and the electric hydraulic station (39) is installed below the mounting bracket (9).

7. The hybrid tracked lawnmower according to claim 1, characterized in that, The control system is also connected to a remote control signal receiving module.

8. The hybrid tracked lawnmower according to claim 1, characterized in that, The cutter roller (31) includes a centrally located cutter shaft (31a) and a plurality of cutter units (31b) distributed on the cutter shaft (31a).

Images