Mowing machine with symmetrical double scissors

Abstract

The utility model relates to a mower with symmetrical double scissors, which comprises a mower support and a cutter assembly mounted on the mower support, the cutter assembly comprises a cutter beam and a blade protector, the blade protector is fixedly arranged on the cutter beam, a movable cutter strip is arranged in the blade protector, one end of the movable cutter strip is connected with a knuckle bearing, and the other end of the movable cutter strip is connected with the knuckle bearing. The knuckle bearing is connected with one end of a connecting rod, the other end of the connecting rod is connected with an eccentric wheel, a synchronous transmission shaft is arranged in the center of the eccentric wheel, synchronous belt wheels are arranged at the outer end of the synchronous transmission shaft, the two synchronous belt wheels are connected through a synchronous belt, and one synchronous belt wheel is provided with a belt wheel. According to the utility model, not only is the structure improved to adapt to work on a slope and be easy to transfer and applied to embankment lawn trimming or grassland pasture harvesting, but also in the use process, the vibration of the mowing knife is small, the noise is reduced, and the use experience of a user and the mowing quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a lawn mower with symmetrical double shears. Background Art

[0002] Embankment lawn weeding is to cut weeds on the embankment slope with a slope of 30 degrees. There are often uphill and downhill roads separating the site and the need to transfer. The machine is not easy to unfold and fold on the slope. The rear trailer structure is easy to slide down and leave the correct route on the slope and is not easy to adjust. The existing 2-row scissor mower cannot be used and transferred normally. At the same time, in the prior art, it is necessary to turn the head and look back to observe the working environment of the machine to prevent stones, sticks, and various debris from damaging the mowing scissors. Working on a 30-degree slope is quite dangerous. At the same time, during the mowing process, the mowing scissors vibrate violently and make a lot of noise, which not only has low mowing quality and disturbs people, but also affects the user's hearing under long-term use. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the utility model provides a symmetrical double-scissors lawn mower, which not only adapts to working on slopes and is easy to transfer through structural improvements, and is used for embankment lawn mowing or grassland forage harvesting, but also during use, the vibration of the mower is small and the noise is reduced, thereby improving the user experience and the quality of mowing.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is as follows:

[0005] A symmetrical double-scissors lawn mower, comprising a lawn mower bracket and a cutting knife assembly installed on the lawn mower bracket, the lawn mower assembly is symmetrically arranged on the lawn mower bracket, the cutting knife assembly comprises a knife beam and a blade guard, the blade guard is fixedly arranged on the knife beam, a moving knife strip is arranged inside the blade guard, one end of the moving knife strip is connected to a joint bearing, the joint bearing is connected to one end of a connecting rod, the other end of the connecting rod is connected to an eccentric wheel, a synchronous transmission shaft is arranged at the center of the eccentric wheel, a synchronous pulley is arranged at the outer end of the synchronous transmission shaft, two synchronous pulleys are connected by a synchronous belt, one of the synchronous pulleys is provided with a pulley, and the pulley is belt-connected to a transmission wheel driven by a driving motor.

[0006] Preferably, the transmission wheel is arranged on a 90° gear box, and a driving wheel is arranged on the side of the 90° gear box.

[0007] Preferably, the driving wheel is connected to the driving wheel belt, and the driving wheel is connected to the output shaft of the driving motor.

[0008] Preferably, the drive motor is a synchronous motor.

[0009] Preferably, an outer drag plate is provided at the upper end of the blade beam, and an inner drag plate is provided at the lower end of the blade beam, and the inner drag plate is rotatably connected to the lawn mower bracket via an angle shaft.

[0010] Preferably, the blade beam is connected to the lawn mower bracket via a pull rod.

[0011] Preferably, the pulley is a B-groove pulley.

[0012] Preferably, the knife guards are arranged on the knife beam in parallel and evenly.

[0013] Preferably, the length of the lawn mower bracket is equal to the length of the blade beam.

[0014] The utility model has the following positive effects:

[0015] 1. The utility model forms a bilaterally symmetrical double-scissors lawn mower through a lawn mower bracket, a cutting blade assembly and an eccentric wheel, which not only makes it suitable for working on a slope and easy to transfer, and is applied to embankment lawn mowing or grassland forage harvesting, but also eliminates the need to look backward to observe the working environment of the machine, thereby preventing the lawn mowing scissors from being damaged by various debris such as stones and tree sticks.

[0016] 2. The utility model uses a synchronous transmission shaft, an eccentric wheel and a B-groove pulley, which not only reduces the vibration frequency of the lawn mower, thereby reducing noise and improving the user experience, but also improves the working stability of the lawn mower during mowing, thereby improving the quality of mowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection between the synchronous transmission shaft and the 90° gear box of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection between the eccentric wheel and the moving blade of the utility model.

[0020] Explanation of the numbers in the figure: 1-mower bracket, 2-cutter assembly, 201-cutter beam, 202-cutter guard, 203-moving knife bar, 204-outer drag plate, 205-inner drag plate, 206-spherical bearing, 207-connecting rod, 3-eccentric wheel, 4-synchronous transmission shaft, 5-B groove pulley, 6-synchronous pulley, 7-transmission wheel, 8-90° gear box, 9-driving wheel, 10-driving motor, 11-driving wheel, 12-pull rod, 13-angle shaft. DETAILED DESCRIPTION

[0021] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0022] Example: Figure 1 or Figure 2 or Figure 3 As shown, a symmetrical double-scissors lawn mower comprises a lawn mower bracket 1 and a cutting blade assembly 2 mounted on the lawn mower bracket 1, the cutting blade assembly 2 being symmetrically arranged on the lawn mower bracket 1, the cutting blade assembly 2 comprising a blade beam 201 and a blade guard 202, the blade beam 201 being fixedly provided with the blade guard 202, a moving blade strip 203 being arranged inside the blade guard 202, one end of the moving blade strip 203 being connected to a joint bearing 206, the joint bearing 206 being connected to one end of a connecting rod 207, the other end of the connecting rod 207 being connected to an eccentric wheel 3, a synchronous transmission shaft 4 being arranged at the center of the eccentric wheel 3, a synchronous pulley 6 being arranged at the outer end of the synchronous transmission shaft 4, the two synchronous pulleys 6 being connected by a synchronous belt, one of the synchronous pulleys 6 being provided with a pulley 5, and the pulley 5 being belt-connected to a transmission wheel 7 driven by a driving motor 10.

[0023] In this embodiment, the transmission wheel 7 is arranged on a 90° gear box 8, and a driving wheel 9 is arranged on the side of the 90° gear box 8.

[0024] In this embodiment, the driving wheel 9 is connected to the driving wheel 11 by a belt, and the driving wheel 11 is connected to the output shaft of the driving motor 10 .

[0025] In this embodiment, the driving motor 10 is a synchronous motor.

[0026] In this embodiment, an outer drag plate 204 is provided at the upper end of the blade beam 201 , and an inner drag plate 205 is provided at the lower end of the blade beam 201 . The inner drag plate 205 is rotatably connected to the lawn mower bracket 1 via an angle shaft 13 .

[0027] In this embodiment, the blade beam 201 is connected to the lawn mower bracket 1 via a pull rod 12 .

[0028] In this embodiment, the pulley 5 is a B-groove pulley.

[0029] In this embodiment, the knife guard 202 is arranged on the knife beam 201 in parallel and evenly.

[0030] In this embodiment, the length of the lawn mower bracket 1 is equal to the length of the blade beam 201 .

[0031] The working principle of the utility model is as follows: the lawn mower bracket 1 is connected to the lawn mowing trolley, the pull rod 12 is opened, the cutting blade assembly 2 is in contact with the ground, the driving motor 10 is started, and the driving wheel 11 is driven to rotate, the driving wheel 11 drives the driving wheel 9 to rotate, the driving wheel 9 drives the transmission wheel 7 to rotate through the 90° gear box 8, the transmission wheel 7 drives the B groove pulley 5 to rotate, the B groove pulley 5 drives the synchronous pulley 6 to rotate, thereby driving the synchronous rotating shaft 4 to rotate, the synchronous rotating shaft 4 drives the eccentric wheel 3 to rotate, the eccentric wheel 3 drives the pull rod 12 to move, the pull rod 12 pulls the moving blade 203 to do a reciprocating motion, the lawn mowing trolley moves forward, and the lawn mower trims the lawn (wherein, a lawn mower with symmetrical double scissors is used to mow the lawn, leaving a space in the middle. When mowing back and forth, the empty space in the middle can be used to mow the lawn with the left scissors or the right scissors, and the left scissors or the right scissors will not be in an idle state, thereby improving the mowing efficiency while reducing the energy loss and improving the convenience of mowing with the lawn mower).

[0032] In summary, the utility model is not only adapted to work on slopes and easy to transfer through structural improvements, and is used for embankment lawn mowing or grassland forage harvesting, but also during use, the mower has low vibration and low noise, thereby improving the user experience and the quality of mowing.

[0033] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A symmetrical double-scissor lawn mower, comprising a lawn mower support (1) and a cutter assembly (2) mounted on the lawn mower support (1), the cutter assembly (2) comprising a cutter beam (201) and a blade guard (202), the blade beam (201) being fixedly provided with the blade guard (202), the blade guard (202) being provided with a moving blade strip (203) inside, characterized in that: The mower bracket (1) has a cutter assembly (2) symmetrically and rotatably mounted at both ends, one end of the moving blade (203) is connected to a joint bearing (206), the joint bearing (206) is connected to one end of a connecting rod (207), the other end of the connecting rod (207) is connected to an eccentric wheel (3), a synchronous transmission shaft (4) is provided at the center of the eccentric wheel (3), a synchronous belt pulley (6) is provided at the outer end of the synchronous transmission shaft (4), the two synchronous belt pulleys (6) are connected by a synchronous belt, one of the synchronous belt pulleys (6) is provided with a belt pulley (5), and the belt pulley (5) is connected to a transmission wheel (7) driven by a driving motor (10) by a belt; the transmission wheel (7) is provided on a 90° gear box (8), and a driving wheel (9) is provided on the side of the 90° gear box (8); the blade guard (202) is arranged parallel and evenly on the blade beam (201).

2. The symmetrical double-scissor lawn mower according to claim 1, characterized in that: The driving wheel (9) is connected to the driving wheel (11) by a belt, and the driving wheel (11) is connected to the output shaft of the driving motor (10).

3. The symmetrical double-scissor lawn mower according to claim 2, characterized in that: The drive motor (10) is a synchronous motor.

4. The symmetrical double-scissor lawn mower according to claim 1, characterized in that: An outer drag plate (204) is provided at the upper end of the blade beam (201), and an inner drag plate (205) is provided at the lower end of the blade beam (201). The inner drag plate (205) is rotatably connected to the lawn mower bracket (1) via an angle shaft (13).

5. The symmetrical double-scissor lawn mower according to claim 1, characterized in that: The blade beam (201) is connected to the lawn mower bracket (1) via a pull rod (12).

6. The symmetrical double-scissor lawn mower according to claim 1, characterized in that: The pulley (5) is a B-groove pulley.

7. The symmetrical double-scissor lawn mower according to claim 1, characterized in that: The length of the lawn mower bracket (1) is equal to the length of the blade beam (201).

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