CN220528604U

CN220528604U - Wide-width towing type mowing device

Info

Publication number: CN220528604U
Application number: CN202322134394.7U
Authority: CN
Inventors: 蔡昌平
Original assignee: Yangzhou Weibang Garden Machine Co Ltd
Current assignee: Yangzhou Weibang Garden Machine Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-02-27
Anticipated expiration: 2033-08-09

Abstract

The utility model discloses a wide-width towing type mowing device, which is characterized in that: the front end of the frame is provided with a dragging hinge lug; the rollers are arranged below the front end and the rear end of the base; the input end of the gearbox is hinged with a forward extending universal transmission shaft, and the output end of the gearbox is provided with an upper main belt pulley and a lower main belt pulley; the mowing cutterhead is positioned below the base and is provided with two groups side by side; the mowing cutterhead is provided with a long cutter shaft and a short cutter shaft, and the rotation directions of the two blades in the same group are opposite; the two mowing cutterheads form a certain angle with the width direction of the base, and the projection of adjacent blades of the two mowing cutterheads in the width direction of the base has an overlapping area; the long cutter shaft and the short cutter shaft are supported in the shaft seat through bearings, the upper ends of the long cutter shaft and the short cutter shaft are fixedly provided with long cutter shaft belt wheels, the two long cutter shaft belt wheels are driven by an upper main belt wheel through a first belt, and the two short cutter shaft belt wheels are driven by a lower main belt wheel through a second belt. The device can advance under the drag of the power machine head, mows by utilizing the power provided by the machine head, has large mowing width and is stable and reliable in transmission.

Description

Wide-width towing type mowing device

Technical Field

The utility model relates to a mowing device, in particular to a wide-width towing type mowing device, and belongs to the technical field of garden machinery.

Background

Because of the need of urban greening, lawn coverage is higher and higher, and industrial chains including artificial lawn planting are raised, and large and medium-sized lawn trimming equipment is widely applied to places such as parks, courts, lawn bases and the like. The traditional mower comprises a frame chassis, an engine is mounted on the frame chassis, a mowing cutter disc is mounted below the frame chassis, a blade capable of rotating at a high speed is usually arranged on the mowing cutter disc, an engine belt pulley is mounted at the output end of a crankshaft of the engine, and the engine belt pulley drives a cutter shaft through a belt to drive the blade to rotate.

The mowing period interval between each stubble is longer, and for large-scale grasslands, each mower is self-powered, so that the mowing period interval is redundant, the utilization rate of power equipment is low, and the maintenance burden is increased. It is therefore more desirable to utilize existing equipment such as a tractor in a lawn to power mowing.

The Chinese patent with publication number of CN 205812793U discloses a rear suspension mower carried on a tractor, which comprises a frame, a transmission device and a cutter connected with the transmission device, wherein the transmission device comprises a speed increaser and a belt wheel mechanism which are sequentially connected; the cutter comprises a rotating shaft, a centrifugal disc on the rotating shaft and steel strands fixed on the centrifugal disc; the output shaft of the speed increaser is vertically arranged, the input shaft of the speed increaser is vertical to the output shaft, and the lower end of the output shaft of the speed increaser is in transmission connection with the rotating shaft through a belt wheel mechanism.

The rear suspension mower is powered by a tractor and mows by utilizing the steel strand, so that on one hand, the mowing width is relatively narrow, and the mowing efficiency is low; on the other hand, the shrubs with higher strength are easy to cut cleanly.

Disclosure of Invention

The utility model aims to overcome the problems in the prior art and provide a wide-width towed mowing device which can move forward under the towing of a power machine head and mow by utilizing the power provided by the power machine head, and has large mowing width and stable and reliable transmission.

In order to solve the technical problems, the wide-width towed mowing device comprises a base, wherein the base is provided with:

the frame is fixed above the base, and the front end of the frame is provided with a dragging hinge lug;

the rollers are arranged below the front end and the rear end of the base and are supported on the ground;

the input end of the gearbox is hinged with a forward extending universal transmission shaft, and the output end of the gearbox is provided with an upper main belt pulley and a lower main belt pulley;

the mowing cutterhead is positioned below the base and is provided with two groups side by side along the full width direction of the base;

the mowing cutterhead is respectively in an oblong shape and is respectively provided with a long cutter shaft and a short cutter shaft, blades are respectively fixed at the lower ends of the long cutter shaft and the short cutter shaft, and the rotation directions of the two blades in the same group are opposite; the axial lines of the two mowing cutterheads in the length direction are parallel to each other and form an included angle with the axial line of the base in the width direction, and the middle circular arcs of the two mowing cutterheads are tangent to each other so that the projection of the adjacent blades of the two mowing cutterheads in the base in the width direction has a superposition area;

the long cutter shaft is supported in the long cutter shaft seat through a bearing, a long cutter shaft belt pulley is fixed at the upper end of the long cutter shaft, the short cutter shaft is supported in the short cutter shaft seat through a bearing, a short cutter shaft belt pulley is fixed at the upper end of the short cutter shaft, the long cutter shaft seat and the short cutter shaft seat are respectively fixed on the frame and the base, the two long cutter shaft belt pulleys are driven by the upper main belt pulley through a first belt, and the two short cutter shaft belt pulleys are driven by the lower main belt pulley through a second belt.

As an improvement of the utility model, the discharge groove of the mowing cutter disc is positioned between the two blades of the same group, the outlet end of the discharge groove extends towards the rear end of the base, the inlet ends of the discharge groove are respectively butted with the outlets of the two blade air channels, and the two blade air channels are arc-shaped and are matched with the running tracks of the corresponding blades.

As a further improvement of the utility model, the front end of the base is provided with two split front rollers along the left-right width direction, the two front rollers are respectively supported on a front roller shaft through bearings, the two ends of the front roller shaft are respectively supported on the front ends of front swing arms, the roots of the front swing arms are respectively fixedly connected to front stubble regulating shafts, two front stubble regulating shaft lugs which extend forwards are symmetrically arranged on the front stubble regulating shafts, the front stubble regulating shaft lugs are hinged with the lower ends of front height regulating connecting rods, and the upper ends of the front height regulating connecting rods are fixed on the front lugs of the frame and can regulate the height.

As a further improvement of the utility model, the rear end of the base is provided with integral or split rear rollers along the left-right width direction, the rear rollers are supported on a rear roller shaft through bearings, the two ends of the rear roller shaft are respectively supported at the rear ends of rear swing arms, the roots of the rear swing arms are respectively fixedly connected to rear stubble regulating shafts, two rear stubble regulating shaft lugs which extend backwards are symmetrically arranged on the rear stubble regulating shafts, the rear stubble regulating shaft lugs are hinged with the lower ends of rear height regulating connecting rods, and the upper ends of the rear height regulating connecting rods are fixed on the rear lugs of the frame and can regulate the height.

As a further improvement of the utility model, the towing hinge lug comprises a towing upper hinge lug and two towing lower hinge lugs, wherein the towing upper hinge lug is positioned at the center of the upper part of the front end of the frame, and the two towing lower hinge lugs are symmetrically positioned at the lower part of the front end of the frame.

Compared with the prior art, the utility model has the following beneficial effects: 1. the device can share a power tractor and a power machine head with other equipment, such as a tractor and the like, the power tractor and the power machine head drag the mowing device to advance through dragging the articulated lugs, meanwhile, the power tractor and the power machine head provide power for a gearbox through universal transmission, four blades are driven to mow synchronously, the mowing width of one advancing time is large, and the mowing ranges of the four blades in the advancing direction are partially overlapped, so that the missed mowing is avoided.

2. The rotation directions of the two blades in the same group are opposite, and the flying directions of the broken grass at the junction are the same, so that the broken grass can be conveniently discharged backwards by the shared discharge groove; through the arrangement of the long cutter shaft and the short cutter shaft, the two mowing cutterheads realize staggered-layer driving, the transmission reliability is good, and the structure is simplified.

3. The front roller is arranged in a split mode, so that the grass pressing range is reduced, and the grass can be conveniently recovered elastically and is cut cleanly by the blades; the rear roller can be of an integral structure, and plays a role in rolling and leveling.

4. The positions of the front roller and the rear roller can be conveniently adjusted through the height-adjusting connecting rod, so that the height of the grass stubble is changed.

Drawings

The utility model will now be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration only and are not intended to limit the utility model.

FIG. 1 is a top perspective view of a wide-width towed mowing device of the present utility model;

FIG. 2 is a perspective view of the present utility model with the frame cut away;

FIG. 3 is a perspective view of the back of the base of the present utility model;

FIG. 4 is a bottom perspective view of the wide-width trailing mowing device of the present utility model;

FIG. 5 is an exploded view of the wide-width towed mowing apparatus of the present utility model;

in the figure: 1. a base; 2. a frame; 2a, dragging the upper hinge lug; 2b, dragging the lower hinge lug; 3. a gearbox; 3a, a universal transmission shaft; 3b, an upper main belt pulley; 3c, a lower main belt pulley; 4. mowing cutterhead; 4a, a blade air duct; 5. a long cutter shaft; 5a, a long knife shaft seat; 5b, a long cutter shaft belt wheel; 6. a short cutter shaft; 6a, a short knife shaft seat; 6b, a short cutter shaft belt wheel; 7. a first belt; 8. an upper idler; 8a, an upper idler shaft; 9. a tensioning wheel is arranged; 9a, upper tensioning arm; 9b, upper tensioning arm shaft; 9c, tensioning a tension spring; 10. a second belt; 11. a lower tensioning wheel; 11a, lower tensioning arm; 11b, lower tensioning arm shaft; 11c, lower tensioning tension springs; 12. a blade; 13. a discharge chute; 14. front heightening the connecting rod; 15. a front stubble regulating shaft; 16. a front swing arm; 17. a front roll shaft; 18. a front roller; 19. a connecting rod is heightened afterwards; 20. a rear stubble regulating shaft; 21. a rear swing arm; 22. a rear roller shaft; 23. and a rear roller.

Detailed Description

In the following description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not mean that the device must have a specific orientation.

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1 to 5, the wide-width towing type mowing device of the utility model comprises a base 1, a frame 2, rollers, a gearbox 3 and a mowing cutter head 4, wherein the frame 2 is fixed above the base 1 and is in a trapezoid shape with a narrow upper part and a wide lower part, the center of the upper part of the front end of the frame 2 is welded with a towing upper hinge lug 2a, and the left side and the right side of the upper part of the front end of the frame 2 are respectively welded with a towing lower hinge lug 2b, and one towing upper hinge lug 2a and two towing lower hinge lugs 2b are used for towing equipment such as a power tractor, a power machine head and the like.

The lower part at both ends is equipped with the running roller that supports in ground respectively around the base 1, and gearbox 3 is fixed at the middle part of base 1, and the input of gearbox 3 is located the front side and articulates there is the universal drive shaft 3a that extends forward, and the transmission shaft both ends are connected with the universal joint respectively promptly, link to each other with power equipment's output shaft, be convenient for drive gearbox 3. The output end of the gearbox 3 comprises an upper primary pulley 3b located above the gearbox 3 and a lower primary pulley 3c located below the gearbox 3.

The grass cutter heads 4 are positioned below the base 1, and each grass cutter head 4 is oblong and is provided with two groups side by side along the full width direction of the base. The mowing cutterhead 4 is respectively provided with a long cutter shaft 5 and a short cutter shaft 6, the long cutter shaft 5 is positioned on the same side of the mowing cutterhead 4, for example, the right side, and the short cutter shaft 6 is positioned on the other side of the mowing cutterhead 4, for example, the left side. The lower ends of the long cutter shaft 5 and the short cutter shaft 6 are respectively fixed with blades 12, the rotation directions of the two blades 12 in the same group are opposite, and the phase difference is kept, so that the two blades 12 are prevented from colliding, and the grass can be obtained with good persistence.

The axes of the two mowing cutterheads 4 in the length direction are parallel to each other and form an included angle with the axis of the base in the width direction, and the middle circular arcs of the two mowing cutterheads 4 are tangent to each other so that the projection of the adjacent blades of the two mowing cutterheads 4 in the base in the width direction has an overlapping area, and the mowing device cannot leak cutting when advancing.

The middle section of the long cutter shaft 5 is supported in a long cutter shaft seat 5a through a bearing, and the middle section of the short cutter shaft 6 is supported in a short cutter shaft seat 6a through a bearing; the lower ends of the long cutter shaft seat 5a and the short cutter shaft seat 6a are fixed on the base 1, and the upper part is fixedly connected with the frame 2 through a bracket.

The upper ends of the two long cutter shafts 5 are respectively fixed with a long cutter shaft belt pulley 5b, and the two long cutter shaft belt pulleys 5b are driven by the upper main belt pulley 3b through a first belt 7. An upper idler wheel 8 is arranged on the right side of the upper main belt wheel 3b to increase the wrap angle of the first belt 7 on the circumference of the upper main belt wheel 3b, so that the first belt 7 is prevented from slipping, the upper idler wheel 8 is supported on an upper idler wheel shaft 8a through a bearing, and the upper end of the upper idler wheel shaft 8a is fixed on the frame 2.

The loose edge of the first belt 7 is pressed with an upper tensioning wheel 9, the upper tensioning wheel 9 is positioned between the two long cutter shaft belt pulleys 5b and is rotatably fixed on an upper tensioning arm 9a, the fixed end of the upper tensioning arm 9a is hinged on an upper tensioning arm shaft 9b, the upper tensioning arm shaft 9b is fixed on the frame 2, the free end of the upper tensioning arm 9a is connected with an upper tensioning tension spring 9c, and the upper tensioning wheel 9 maintains the tensioning force on the second belt 10 through the elasticity of the upper tensioning tension spring 9c.

The upper ends of the two short cutter shafts 6 are respectively fixed with a short cutter shaft belt pulley 6b, and the two short cutter shaft belt pulleys 6b are driven by the lower main belt pulley 3c through a second belt 10. The left side of the lower main pulley 3c is provided with a lower idle pulley to increase the wrap angle of the second belt 10 under the circumference of the lower main pulley 3c, avoiding the second belt 10 from slipping.

The loose edge of the second belt 10 is pressed with a lower tensioning wheel 11, the lower tensioning wheel 11 is positioned between the two short cutter shaft belt pulleys 6b and is rotatably fixed on a lower tensioning arm 11a, the fixed end of the lower tensioning arm 11a is hinged on a lower tensioning arm shaft 11b, the lower tensioning arm shaft 11b is fixed on the frame 2, the free end of the lower tensioning arm 11a is connected with a lower tensioning tension spring 11c, and the elasticity of the lower tensioning tension spring 11c enables the lower tensioning wheel 11 to keep tensioning force on the second belt 10.

The grass cutter head 4 has a discharge groove 13 between the two blades of the same group and an outlet end extending toward the rear end of the base, the inlet end of the discharge groove 13 is respectively in butt joint with the outlets of the two blade air channels 4a, the two blade air channels 4a are arc-shaped and are matched with the running tracks of the corresponding blades 12, the broken grass cut by the two blades of the same group 12 is discharged backwards through the discharge groove 13 together in the same flying direction at the inlet end of the discharge groove 13.

The front end of the base 1 is provided with two split front rollers 18 along the left-right width direction, the two front rollers 18 are respectively supported on a front roller shaft 17 through bearings, the two ends of the front roller shaft 17 are respectively supported on the front ends of front swing arms 16, the root parts of the front swing arms 16 are respectively fixedly connected with front stubble regulating shafts 15, two front stubble regulating shaft lugs extending forwards are symmetrically arranged on the front stubble regulating shafts 15, the front stubble regulating shaft lugs are hinged with the lower ends of front height regulating connecting rods 14, and the upper ends of the front height regulating connecting rods 14 are fixed on front lugs of a frame.

The height of the front height-adjusting connecting rod 14 can be adjusted by loosening the nut at the upper end of the front height-adjusting connecting rod 14, the lower end of the front height-adjusting connecting rod 14 drives the front stubble-adjusting shaft 15 to rotate through the front stubble-adjusting shaft support lug, and the front stubble-adjusting shaft 15 drives the front swing arm 16 to swing by a certain angle, so that the drop between the front roll shaft 17 and the ground is changed, and the ground-leaving height of the front side of the mowing cutter head 4 is indirectly adjusted.

The rear end of the base 1 is provided with integral or split rear rollers 23 along the left-right width direction, the rear rollers 23 are supported on a rear roller shaft 22 through bearings, two ends of the rear roller shaft 22 are respectively supported at the rear end of a rear swing arm 21, the root parts of the rear swing arm 21 are respectively fixedly connected to a rear stubble regulating shaft 20, two rear stubble regulating shaft lugs extending backwards are symmetrically arranged on the rear stubble regulating shaft 20, the rear stubble regulating shaft lugs are hinged with the lower end of a rear height regulating connecting rod 19, and the upper end of the rear height regulating connecting rod 19 is fixed on the rear lugs of the frame and can regulate the height.

The height of the rear height-adjusting connecting rod 19 can be adjusted by loosening the nut at the upper end of the rear height-adjusting connecting rod 19, the lower end of the rear height-adjusting connecting rod 19 drives the rear stubble-adjusting shaft 20 to rotate through the rear stubble-adjusting shaft support lug, the rear stubble-adjusting shaft 20 drives the rear swing arm 21 to swing by a certain angle, and accordingly the drop between the rear roll shaft 22 and the ground is changed, the ground clearance of the rear side of the mowing cutter head 4 is indirectly adjusted, and therefore the height of grass stubble is changed.

The foregoing description of the preferred embodiments of the present utility model illustrates and describes the basic principles, main features and advantages of the present utility model, and is not intended to limit the scope of the present utility model, as it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments. In addition to the embodiments described above, other embodiments of the utility model are possible without departing from the spirit and scope of the utility model. The utility model also has various changes and improvements, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the protection scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof. The technical features of the present utility model that are not described may be implemented by or using the prior art, and are not described herein.

Claims

1. The utility model provides a broad width towed grass cutting device, includes the base, its characterized in that is equipped with on the base:

2. The wide-width towed mowing apparatus of claim 1, wherein: the discharge groove of the mowing cutterhead is positioned between two blades in the same group, the outlet end extends towards the rear end of the base, the inlet end of the discharge groove is respectively in butt joint with the outlets of two blade air channels, and the two blade air channels are arc-shaped and are matched with the running tracks of the corresponding blades.

3. The wide-width towed mowing apparatus of claim 1, wherein: the front end of base is equipped with two front rollers of components of a whole that can function independently about width direction, and two front rollers are supported on preceding roller through the bearing respectively, preceding roller's both ends head is supported respectively at preceding swing arm's front end, preceding swing arm's root links firmly respectively in the front and transfers the stubble epaxial, preceding stubble epaxial symmetry of transferring is equipped with two preceding stubble axle lugs that stretch out forward, preceding stubble axle lugs are articulated mutually with the lower extreme of preceding height-adjusting connecting rod, the upper end of preceding height-adjusting connecting rod is fixed in frame front on the lug and can height-adjusting.

4. The wide-width towed mowing apparatus of claim 1, wherein: the rear end of base is equipped with whole or components of a whole that can function independently rear roller along controlling the width direction, rear roller passes through the bearing and supports on the back roller, the both ends of back roller support respectively at the rear end of back swing arm, the root of back swing arm links firmly respectively on the stubble axle of adjusting behind, the epaxial symmetry of stubble is adjusted to the back is equipped with two and is adjusted the stubble axle journal stirrups that stretch out backward behind, the lower extreme of stubble axle journal stirrups and back height-adjusting connecting rod articulates mutually, the upper end of back height-adjusting connecting rod is fixed behind the frame on the journal stirrup and can height-adjusting.

5. The wide-width towed mowing apparatus of claim 1, wherein: the towing hinge lugs comprise an upper towing hinge lug and two lower towing hinge lugs, the upper towing hinge lug is positioned at the center of the upper part of the front end of the frame, and the two lower towing hinge lugs are symmetrically positioned at the lower part of the front end of the frame.