A high efficiency lawnmower

Abstract

The utility model relates to a kind of high-efficiency mower, belong to the technical field of mower, including machine cover and cutter roll, the accommodating cavity for accommodating cutter roll is equipped in machine cover inside, the transmission shaft is rotationally equipped with in the side of machine cover away from accommodating cavity, cutter roll and transmission shaft are connected by transmission belt, transmission belt wheel engaged with transmission belt is coaxially equipped on cutter roll and transmission shaft, seat plate is rotationally connected on machine cover, tension pulley is rotationally connected on seat plate, one end of seat plate is rotationally connected with mounting seat, the other end of seat plate is rotationally connected with guide rod, the guide plate matched with guide rod is equipped between transmission shaft and cutter roll, mounting seat and guide plate are fixed on machine cover, guide through hole for the guide rod is passed through and is equipped with on guide plate, the end of guide rod away from seat plate is equipped with limit piece, guide elastic element is equipped on guide rod, seat plate is rotated to tension pulley and transmission belt is pasted under the cooperation of guide rod and guide elastic element. The present application has the effect of guaranteeing the working efficiency of mower.

Description

Technical Field

[0001] This utility model relates to the technical field of lawnmowers, and in particular to a high-efficiency lawnmower. Background Technology

[0002] A lawnmower is a mechanical device that integrates mowing and cutting functions. It is mainly used in gardens, orchards, farmlands, and other settings to remove dead branches, fallen leaves, and weeds. It includes a hood and a blade roller. The hood has a cavity inside which the blade roller rotates. The hood also has a rotating mechanical power mechanism that drives the blade roller. This power transmission mechanism includes a drive shaft parallel to the blade roller. The blade roller and the drive shaft are connected by a synchronous belt. A synchronous pulley that meshes with the synchronous belt is coaxially mounted on the blade roller and the drive shaft. After prolonged use, the tension of the synchronous belt can be adjusted by adjusting the distance between the drive shaft and the blade roller. However, in actual application, the degree of loosening of the synchronous belt gradually increases. The operator needs to pause the mowing and adjust the synchronous belt according to the actual usage time of the lawnmower, which will affect the working efficiency of the high-efficiency lawnmower to a certain extent. Utility Model Content

[0003] To ensure the working efficiency of the lawnmower, this application provides a high-efficiency lawnmower.

[0004] This application provides a high-efficiency lawn mower, which adopts the following technical solution: A high-efficiency lawnmower includes a hood and a blade roller. The hood has an internal cavity for accommodating the blade roller. A drive shaft is rotatably mounted on the side of the hood away from the cavity. The blade roller and the drive shaft are connected by a drive belt. Both the blade roller and the drive shaft have coaxially mounted pulleys that mesh with the drive belt. A seat plate is rotatably connected to the hood, located between the hood and the drive belt. A tension wheel is rotatably connected to the seat plate. A mounting base is rotatably connected to one end of the seat plate, and a guide rod is rotatably connected to the other end. A guide plate, cooperating with the guide rod, is provided between the drive shaft and the blade roller. Both the mounting base and the guide plate are fixed to the hood. A through hole is provided on the guide plate for the guide rod to pass through. A limiting element is provided at the end of the guide rod away from the seat plate. A guiding elastic element is provided on the guide rod. The seat plate rotates until the tension wheel and the drive belt are in contact, under the cooperation of the guide rod and the guiding elastic element.

[0005] By adopting the above technical solution, through the setting of the seat plate, tension wheel, guide rod, guide plate and mounting base, in the actual application of this lawnmower, when the drive belt slips, the guide rod can dynamically slide along the guide hole under the action of the drive belt elasticity, so that the tension wheel always keeps in close contact with the drive belt. The tension of the drive belt does not need to be constantly monitored and adjusted by the operator, which improves the reliability and stability of the blade roller driven by the drive belt, thereby ensuring the working efficiency of the lawnmower to a certain extent.

[0006] Preferably, the limiting component includes a limiting nut, and the end of the guide rod away from the seat plate is provided with a limiting screw that cooperates with the limiting nut. The guiding elastic component includes a guide spring, which is sleeved on the guide rod. Both ends of the guide spring are provided with positioning washers, and the limiting nut abuts against the end of the corresponding positioning washer away from the guide spring.

[0007] By adopting the above technical solution, the sliding of the positioning washer and the guide spring on the guide rod is limited by the limiting nut, which improves the reliability of keeping the tension wheel in contact with the transmission belt by the guide spring.

[0008] Preferably, a protective cover is provided on one side of the machine cover, and the transmission pulley and transmission belt are both located within the enclosure of the protective cover. The protective cover is provided with a protective inclined surface for guidance.

[0009] By adopting the above technical solution, the protective ramp plays a guiding role in the operation of the lawnmower, effectively reducing the situation of debris getting stuck on the lawnmower, improving the passing efficiency of the lawnmower during operation, and also having a more aesthetically pleasing shape.

[0010] Preferably, both sides of the machine cover are provided with guide covers, and the ends of the guide covers along the length direction and the sides away from the covers are provided with guide slopes.

[0011] By adopting the above technical solution, side guidance is added to the front and rear dual guidance, which is more conducive to the lawnmower's passing efficiency during operation, thereby improving the lawnmower's working efficiency to a certain extent.

[0012] Preferably, the machine cover is rotatably connected to multiple protective plates, which are arranged along the length of the machine cover. Each protective plate has multiple protective chains on the side facing the receiving cavity. The protective plates are fixed to the machine cover by protective bolts, and the protective chains are sleeved on the fixing bolts.

[0013] By adopting the above technical solution, in the actual use of existing lawnmowers, although the protective plate is rotated and set on the machine cover, the protective plate may still be deformed or damaged when hit by hard objects. By setting up the protective chain, the protective plate can be protected to a certain extent, thereby effectively extending the service life of the protective plate.

[0014] Preferably, the cutter roller is provided with a three-claw hammer blade in a spiral shape, the three-claw hammer blade has a ridge in the middle, and both sides of the three-claw hammer blade are provided with a blade seat, the blade seat is fixed on the cutter roller, and the force-bearing surface of the blade seat is arranged in a sawtooth shape.

[0015] By adopting the above technical solution, the edges of the three-claw hammer blade and the force-bearing surface in the rotation direction of the blade holder are set in a sawtooth shape, which improves the impact effect on weeds during the operation of the lawnmower and improves the working efficiency of the lawnmower.

[0016] Preferably, the machine cover is provided with a pulley cover, and a grease tube for lubricating the cutter roller is provided between the pulley cover and the protective cover. A lubrication through hole is provided through the machine cover for the grease tube to pass through.

[0017] By adopting the above technical solution, the grease hose is located between the pulley cover and the protective cover, which not only makes it easier for users to add grease, but also provides better protection for the grease hose. During operation, the grease hose is less likely to be damaged by debris and leak oil.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the arrangement of the seat plate, tension wheel, guide rod, guide plate and mounting base, in the actual application of this lawnmower, when the drive belt slips, the guide rod can dynamically slide along the guide hole under the action of the drive belt's elasticity, so that the tension wheel always keeps in close contact with the drive belt. The tension of the drive belt does not need to be constantly monitored and adjusted by the operator, which improves the reliability and stability of the blade roller driven by the drive belt, thereby ensuring the working efficiency of the lawnmower to a certain extent. 2. The protective ramp plays a guiding role in the operation of the lawnmower, effectively reducing the situation where debris gets stuck on the lawnmower, improving the passing efficiency of the lawnmower during operation, and its shape is more aesthetically pleasing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the structure without the hood in an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the overall structure from another perspective in the embodiments of this application.

[0022] Figure 4 This is a schematic diagram of the cutter roller structure in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Machine cover; 11. Receiving cavity; 12. Drive shaft; 13. Drive belt; 14. Gearbox; 15. Seat plate; 151. Tensioner wheel; 152. Mounting seat; 153. Guide rod; 16. Guide plate; 161. Guide spring; 17. Limit nut; 171. Limit screw; 172. Positioning washer; 18. Protective cover; 181. Protective inclined surface; 19. Guide cover; 191. Guide inclined surface; 2. Cutter roller; 21. Pulley cover; 211. Grease tube; 22. Three-jaw hammer cutter; 221. Edge; 23. Cutter holder; 231. Force-bearing surface; 3. Protective plate; 31. Protective chain; 32. Protective bolt. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0025] This application discloses a high-efficiency lawnmower, referring to... Figure 1 and Figure 2 The lawnmower includes a cover 1 and a blade roller 2. The cover 1 has a cavity 11 for accommodating the blade roller 2. The blade roller 2 is rotatably mounted in the cavity 11. A drive shaft 12 is rotatably mounted on the side of the cover 1 away from the cavity 11. The drive shaft 12 is parallel to the blade roller 2. The blade roller 2 and the drive shaft 12 are connected by a drive belt 13. Both the blade roller 2 and the drive shaft 12 are coaxially mounted with drive pulleys that mesh with the drive belt 13. The cover 1 has a gearbox 14 for driving the drive shaft 12 to rotate. The output shaft of the gearbox 14 is coaxially fixed with the drive shaft 12. The input shaft of the gearbox 14 is coaxially fixed with the rear power output shaft on the implement. After the lawnmower is mounted on the implement, the rear power output shaft on the implement can drive the drive shaft 12 to rotate, thereby causing the blade roller 2 to rotate under the action of belt drive. The lawnmower can operate normally and achieve mowing.

[0026] Reference Figure 2A base plate 15 is rotatably connected to the machine cover 1, located between the machine cover 1 and the transmission belt 13. A tensioning wheel 151 is rotatably connected to the base plate 15. A mounting seat 152 is rotatably connected to one end of the base plate 15, and a guide rod 153 is rotatably connected to the other end of the base plate 15. A guide plate 16 that cooperates with the guide rod 153 is provided between the transmission shaft 12 and the cutter roller 2. Both the mounting seat 152 and the guide plate 16 are fixed to the machine cover 1. A guide opening is provided through the guide plate 16 for the guide rod 153 to pass through. A limiting member is provided at the end of the guide rod 153 away from the seat plate 15 through the through hole. The limiting member is used to restrict the seat plate 15 from rotating until the guide rod 153 disengages from the guide plate 16. A guiding elastic member is provided on the guide rod 153. In this embodiment, the guiding elastic member is a guide spring 161. The guide spring 161 is a compression spring. The guide spring 161 is sleeved on the guide rod 153. The seat plate 15 rotates until the tension wheel 151 is in contact with the transmission belt 13 under the cooperation of the guide rod 153 and the guide spring 161.

[0027] With the arrangement of seat plate 15, tension wheel 151, guide rod 153, guide plate 16 and mounting base 152, in the actual application of this lawnmower, when the drive belt 13 slips, the guide rod 153 can dynamically slide along the guide through hole under the action of the elastic force of the drive belt 13, so that the tension wheel 151 always keeps in close contact with the drive belt 13. The tension of the drive belt 13 does not need to be constantly monitored and adjusted by the operator, which improves the reliability and stability of the rotation of the cutter roller 2 driven by the drive belt 13, thereby ensuring the working efficiency of the lawnmower to a certain extent.

[0028] Reference Figure 2 The limiting component includes a limiting nut 17. The end of the guide rod 153 away from the seat plate 15 is integrally formed with a limiting screw 171 that cooperates with the limiting nut 17. Both ends of the guide spring 161 are provided with positioning washers 172 sleeved on the guide rod 153. The limiting nut 17 and the corresponding positioning washer 172 are pressed against the end away from the guide spring 161. The limiting nut 17 restricts the sliding of the positioning washer 172 and the guide spring 161 on the guide rod 153, thereby improving the reliability of keeping the tension wheel 151 in contact with the transmission belt 13 through the guide spring 161.

[0029] Reference Figure 1 A protective cover 18 is provided on one side of the machine cover 1. The transmission pulley and the transmission belt 13 are both located within the enclosure of the protective cover 18. The protective cover 18 is provided with a protective inclined surface 181 for guidance. In this embodiment, the protective inclined surface 181 is a polygonal inclined surface, which plays a guiding role in the operation of the lawnmower, effectively reducing the situation of debris getting stuck on the lawnmower, improving the passing efficiency of the lawnmower in the working process, and has a more beautiful shape.

[0030] Reference Figure 1 and Figure 3 The machine cover 1 has guide covers 19 on both sides. The guide covers 19 have guide slopes 191 at the ends along the length and the sides away from the covers. Compared with the previous lawnmower models, the addition of side guides makes it easier for the lawnmower to pass through during operation, thereby improving the working efficiency of the lawnmower to a certain extent.

[0031] Reference Figure 2 and Figure 3 Multiple protective plates 3 are rotatably connected to the cover 1, arranged along the length of the cover 1. The number of protective plates 3 depends on the actual length of the lawnmower. Multiple protective chains 31 are provided on the side of the protective plates 3 facing the receiving cavity 11. The number of protective chains 31 depends on the actual size of the protective plates. In this embodiment, one protective plate 3 is paired with four protective chains 31. The protective plates 3 are fixed to the cover 1 by protective bolts 32, and the protective chains 31 are fitted onto the fixing bolts. Therefore, when the protective plates 3 are fixed, the protective chains 31 can be fixed in the same way, facilitating operation. In the actual use of existing lawnmowers, although the protective plates 3 are rotatably mounted on the cover 1, they may still deform or be damaged by impacts from hard objects. The protective chains 31 provide protection for the protective plates 3 to a certain extent, thereby effectively extending their service life.

[0032] Reference Figure 3 and Figure 4 The blade roller 2 has a spiral-shaped three-claw hammer blade 22. The three-claw hammer blade 22 has a ridge 221 in the middle. The ridge 221 effectively improves the strength of the three-claw hammer blade 22, making it more impactful and improving the working efficiency of the lawnmower to a certain extent. Both sides of the three-claw hammer blade 22 are provided with blade holders 23. The blade holders 23 are fixed to the blade roller 2 by welding. The reliability of the blade holders 23 being fixed to the blade roller 2 can be improved by extending the contact area between the blade holders 23 and the blade roller 2. The force-bearing surface 231 of the blade holders 23 in the rotation direction is set in a sawtooth shape, which further improves the impact effect on weeds during the operation of the lawnmower.

[0033] Reference Figure 2 and Figure 3 The machine cover 1 is equipped with a pulley cover 21, which is located below the protective cover 18. Between the pulley cover 21 and the protective cover 18, there is a grease tube 211 for lubricating the cutter roller 2. The machine cover 1 has a through lubrication hole for the grease tube 211 to pass through. In the actual assembly process, the grease tube 211 is located between the pulley cover 21 and the protective cover 18, which not only makes it easier for the user to add grease, but also provides better protection for the grease tube 211. During operation, the grease tube 211 is less likely to be damaged by debris and leak oil.

[0034] 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 high-efficiency lawnmower, comprising a shroud (1) and a blade roller (2), wherein the shroud (1) has an internal cavity (11) for accommodating the blade roller (2), and a drive shaft (12) is rotatably mounted on the side of the shroud (1) away from the cavity (11), the blade roller (2) and the drive shaft (12) are connected by a drive belt (13), and both the blade roller (2) and the drive shaft (12) are coaxially provided with drive pulleys that mesh with the drive belt (13), characterized in that, A seat plate (15) is rotatably connected to the machine cover (1). The seat plate (15) is located between the machine cover (1) and the transmission belt (13). A tensioning wheel (151) is rotatably connected to the seat plate (15). A mounting base (152) is rotatably connected to one end of the seat plate (15). A guide rod (153) is rotatably connected to the other end of the seat plate (15). A guide plate (16) that cooperates with the guide rod (153) is provided between the transmission shaft (12) and the cutter roller (2). The mounting base (152) and the guide plate (16) are both fixed on the machine cover (1). The guide plate (16) has a through hole for the guide rod (153) to pass through. The end of the guide rod (153) away from the seat plate (15) is provided with a limiting member. The guide rod (153) is provided with a guiding elastic member. The seat plate (15) rotates until the tension wheel (151) and the transmission belt (13) are in contact under the cooperation of the guide rod (153) and the guiding elastic member.

2. The high-efficiency lawnmower according to claim 1, characterized in that, The limiting component includes a limiting nut (17), and the end of the guide rod (153) away from the seat plate (15) is provided with a limiting screw (171) that cooperates with the limiting nut (17). The guiding elastic component includes a guide spring (161), which is sleeved on the guide rod (153). Both ends of the guide spring (161) are provided with positioning washers (172), and the limiting nut (17) and the corresponding positioning washer (172) abut against the end of the guide spring (161) away from the guide spring (161).

3. The high-efficiency lawnmower according to claim 2, characterized in that, The machine cover (1) is provided with a protective cover (18) on one side. The transmission pulley and the transmission belt (13) are both located within the enclosure of the protective cover (18). The protective cover (18) is provided with a protective inclined surface (181) for guidance.

4. The high-efficiency lawnmower according to claim 3, characterized in that, The machine cover (1) is provided with guide covers (19) on both sides, and guide slopes (191) are provided at the ends of the guide covers (19) in the length direction and at the ends of the guide covers (1) away from the machine cover (1).

5. The high-efficiency lawnmower according to claim 4, characterized in that, Multiple protective plates (3) are rotatably connected to the machine cover (1). The multiple protective plates (3) are arranged along the length of the machine cover (1). Multiple protective chains (31) are provided on the side of the protective plate (3) facing the receiving cavity (11). The protective plate (3) is fixed to the machine cover (1) by protective bolts (32). The protective chains (31) are sleeved on the fixing bolts.

6. The high-efficiency lawnmower according to claim 5, characterized in that, The cutter roller (2) is provided with a three-claw hammer cutter (22) in a spiral shape. The three-claw hammer cutter (22) has a ridge (221) in the middle. Both sides of the three-claw hammer cutter (22) are provided with a cutter seat (23). The cutter seat (23) is fixed on the cutter roller (2). The force-bearing surface (231) of the cutter seat (23) is set in a sawtooth shape.

7. The high-efficiency lawnmower according to claim 1, characterized in that, The machine cover (1) is provided with a pulley cover (21), and a grease tube (211) for lubricating the cutter roller (2) is provided between the pulley cover (21) and the protective cover (18). A lubrication through hole for the grease tube (211) to pass through is provided on the machine cover (1).

Images