CN218604017U - Grass trimmer - Google Patents

Abstract

The utility model relates to the technical field of agricultural machinery, specifically disclose a grass cutter, including frame, driver part and working part, driver part includes power output shaft, and the working part is including beating the grass mechanism, still includes the change-over spindle, and the change-over spindle passes through bevel gear group transmission with power output shaft to be connected, beats the grass mechanism and includes the knife rest and rotate the cutter of connection on the knife rest, frame and knife rest fixed connection, and the change-over spindle drives the cutter rotation. The scheme is used for realizing the function diversification of the agricultural machine and reducing the cost of the agricultural machine.

Description

Grass trimmer

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a grass trimmer.

Background

The grass mower, also called a grass chopper, a grass mower or a waste cutter, is used for realizing grass cutting or grass chopping work on lawns, agricultural lands, wastelands and the like, and in the prior art, different grass trimmers are adopted according to different use environments, such as grass trimmers for cutting grass on the lawns, because the grass on the lawns is generally regular and not high in height, when grass is cut, the grass trimmers can be directly placed on the lawns to cut grass; the grass mower for rough mowing is characterized in that the heights of weeds on a rough land or an agricultural land are different, and weeds in some places are higher and weeds in some places are shorter, so that when grass is mowed, the height of a cutter in a grass mowing mechanism and the ground is controlled according to the growth condition of the weeds by manually controlling the pressing condition of the handrail of the grass mower, and the grass cutting depth is further controlled. If the lawn mower is used for reclaiming weeds, the weeds are too high, so that the grass is difficult to reclaim and even can not be reclaimed; when the grass trimmer for reclaiming wasteland is used for grass trimming of the lawn, the grass trimming depth of the lawn is determined by manually pressing the handrails, so that the attractiveness of the lawn after grass trimming is affected; therefore, the prior lawn mower and the prior waste-reclaiming grass mower can not be used together.

In addition, in a field management machine, besides a grass trimmer, a micro-cultivator, a hiller and the like, if a farmer needs to cut grass and carry out rotary tillage, two different operations can be completed only by purchasing two machines, so that the purchase cost of agricultural machinery is increased, and through research by the applicant, the agricultural machinery such as the grass trimmer, the micro-cultivator and the hiller comprises a driving part and a working part, wherein the driving part comprises a power mechanism, a speed change mechanism and a walking mechanism, the working part comprises a cutter mechanism (the power mechanism is used for providing power for the speed change mechanism, the speed change mechanism comprises a gearbox, an input shaft and an output shaft, the input shaft is connected with the power mechanism, the output shaft is connected with the walking mechanism, meanwhile, the output shaft transmits the power to the cutter mechanism through a mechanical transmission structure, the speed change of the speed change mechanism is realized for the walking speed change of the walking mechanism, and the speed change mechanism also controls the working efficiency of the cutter mechanism); therefore, the applicant designs the grass trimmer which can share the parts of the micro-cultivator or the hiller except the cutter mechanism, so that the production cost of the grass trimmer is reduced, the use function of the micro-cultivator is increased, the newly designed agricultural machine can perform micro-tillage, ditching and hilling after the cutter mechanism is replaced, the grass cutting work can be performed, the function diversification of the agricultural machine is realized, and the cost of the agricultural machine is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a grass trimmer to realize that agricultural machine's function is diversified, reduced agricultural machine's cost.

In order to achieve the above object, the basic scheme of the present invention is as follows:

the utility model provides a grass mower, includes frame, driver part and working part, and driver part includes power output shaft, and the working part is including grass mowing mechanism, still includes the change over spindle, and the change over spindle passes through bevel gear group transmission with power output shaft to be connected, and grass mowing mechanism includes the knife rest and rotates the cutter of connection on the knife rest, frame and knife rest fixed connection, and the change over spindle drives the cutter rotation.

Compare the beneficial effect in prior art:

when this scheme of adoption, utilize conversion axis and bevel gear group to utilize current driver part, realize the perpendicular transmission of power so that current driver part can application on the machine of beating the grass, and then accomplish the work of beating the grass of cutter, reduced brand-new design driver part's cost, also increased agricultural machine's function diversification simultaneously.

Furthermore, the rack is also fixedly connected with an adapter which encloses the bevel gear assembly.

Has the advantages that: through the setting of crossover sub to conveniently protect bevel gear group.

Furthermore, an observation hole is formed in the adapter.

Has the advantages that: the meshing condition of bevel gear set is conveniently looked over through the observation hole to the setting up of observation hole, also conveniently carries out the interpolation of lubricating oil to bevel gear set through the observation hole simultaneously.

Furthermore, the adapter is fixedly connected with a bearing frame, the bearing frame comprises a bearing plate and a bearing pipe, the bearing plate is fixedly connected with the tool rest, the bearing plate is fixedly connected with the adapter, the bearing pipe is fixedly connected with the bearing plate, and the conversion shaft is rotatably connected in the bearing pipe.

Has the advantages that: when this scheme of adoption, the support and the protection to the change-over spindle are formed in the setting of accepting the frame to make the transmission process more stable, be favorable to improving the job stabilization nature of grass mowing mechanism.

Furthermore, grass mowing mechanism still includes the support frame and is used for moving the removal wheel that removes and support grass mowing mechanism, and the support frame rotates to be connected on the knife rest, removes the wheel and connects on the support frame, is connected with the regulating part between knife rest and the support frame, and the regulating part is used for adjusting the turned angle of the relative knife rest of support frame.

Has the advantages that: when the scheme is adopted, the rotating condition of the support frame relative to the tool rest is adjusted through the adjusting piece so as to adjust the distance between the bottom of the moving wheel and the bottom of the cutter, and further, the effect of adjusting the grass cutting depth when the cutter cuts grass is achieved; when the lawn mower is used for lawn mowing, the bottom of the movable wheel is lower than the bottom of the cutter according to the depth use requirement of lawn mowing, the movable wheel acts on the ground during mowing, the grass mowing mechanism is supported, and the grass mower is convenient to move, so that the heights of grass on the lawn after the grass is mowed by the grass mower are consistent, and the attractiveness of the lawn after mowing is ensured; when the grass mower is used for wasteland, the rotating angle of the support frame relative to the tool rest is adjusted through the adjusting piece, so that the bottom of the movable wheel is higher than the bottom of the cutter, the movable wheel does not influence the grass cutting depth of the cutter during grass cutting, and the grass cutting depth is manually controlled according to the actual growth of weeds during wasteland removal; compared with the prior art, the scheme can meet the use requirement of lawn grass cutting and can meet the use requirement of grass cutting for wasteland or agricultural land.

In addition, this scheme is because of can adjusting the interval of removing between round bottom and the cutter bottom through regulating part and support frame, then when in actual use, can be through removing the interval adjustment between round bottom and the cutter bottom, combine the lawn actual conditions to compromise the pleasing to the eye on lawn and the frequency of cutting the grass, if to the more sparse condition in lawn grass, can improve the aesthetic property on lawn through reducing the grass cutting depth and improve the reserve depth of grass on the lawn, and to the lawn that the grass on lawn is comparatively dense and the growth vigor is faster, then can suitably increase the grass cutting depth and reduce the frequency of cutting the grass.

Furthermore, the adjusting part comprises an adjusting rod, an adjusting fixed block and an adjusting rotating block, the adjusting rod is sleeved on the adjusting fixed block and the adjusting rotating block at the same time, the adjusting rod can move on the adjusting fixed block along the self axial direction, the adjusting rod rotates with the adjusting rotating block, one of the adjusting fixed block and the adjusting rotating block is connected with the knife rest in a rotating mode, and the other one of the adjusting fixed block and the adjusting rotating block is connected with the support frame in a rotating mode.

Has the advantages that: when this scheme of adoption, when needs rotate the relative knife rest of support frame and remove the interval between wheel bottom and the knife rest bottom in order the adjustment, through controlling the regulation pole for adjust the pole and follow the axial displacement who adjusts the pole on adjusting the fixed block, adjust pole axial displacement back, rotate with the support frame and be connected another and rotate with the knife rest and be connected because of adjusting one in fixed block and the regulation rotatory piece, and then make the removal of adjusting the pole drive the support frame and rotate.

Furthermore, adjust the fixed block and rotate to connect on the knife rest, adjust rotatory piece and rotate with the support frame and be connected.

Has the advantages that: when the scheme is adopted, the adjusting rotating block is rotationally connected with the support frame and the adjusting rod, so that when the support frame is rotated, the adjusting rotating block and the adjusting rod form a whole body which moves along the axial direction of the adjusting rod on the adjusting fixed block along with the adjusting rod, and the aim of rotating the support frame is fulfilled; compare in the condition of being connected with the support frame rotation of adjusting the fixed block, the support frame is kept away from to the regulation fixed block of this scheme, and the support frame is close to the weeds of waiting to cut the grass at the quick-witted during operation of beating the grass, and when cutting the grass, the garrulous grass of part cut will fall on the support frame place region, and then makes the regulation fixed block place region of keeping away from the support frame can not have the garrulous grass whereabouts, has reduced the influence that the garrulous grass whereabouts was moved to the regulating stem.

Furthermore, the adjusting rod is a screw rod and is in threaded connection with the adjusting fixing block.

Has the advantages that: the threaded connection mode enables the adjusting rod to automatically complete position locking after the adjusting rod moves axially, and locking of the rotating angle of the supporting frame is formed, so that operation is simple and rapid.

Furthermore, fixedly connected with adjustment handle on adjusting the pole, adjustment handle includes handle knife rest and the rotor arm of adjusting pole eccentric settings relatively, and the rotor arm is connected with the handle knife rest, handle knife rest and regulation pole fixed connection.

Has the advantages that: when this scheme of adoption, adjust pole eccentric settings relatively because of the rotor arm for adjustment handle drives the rotation of adjusting the pole more laborsavingly.

Furthermore, the adjusting part is positioned in the middle of the supporting frame and is inclined to the left or the right.

Has the advantages that: the adjusting piece is arranged in the middle of the supporting frame to be left or right so that an operator can stand on the side of the grass trimmer to adjust the angle of the supporting frame conveniently.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural view of a first embodiment of the present invention between a conversion shaft and a power output shaft as well as a cutter;

FIG. 4 is a schematic view of the grass cutting mechanism of the grass trimmer of FIG. 1;

FIG. 5 is a front view of the grass cutting mechanism of the grass trimmer of FIG. 1;

fig. 6 is an exploded view of an adjusting member according to a first embodiment of the present invention;

fig. 7 is a front view of a second embodiment of the present invention;

fig. 8 is a front view of a third embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a gearbox 11, a power output shaft 12, a conversion shaft 13, a belt 14, a conversion joint 15, a plug 16, a bearing plate 17, a bearing pipe 18, a knife rest 10, a cutter 20, a protective cover 3, a support frame 4, a moving wheel 5, an adjusting piece 6, an adjusting rod 61, an adjusting fixing block 62, an adjusting rotating block 63, a fixing seat 64, a fixing plate 65, an adjusting handle 7, a rotating arm 71, an adjusting hole 81, a limiting stud 82 and a blocking pin 83.

Example one

An embodiment substantially as described herein with reference to figures 1 to 6: a grass mower comprises a rack, and a driving part and a working part which are arranged on the rack, wherein the driving part comprises a power mechanism, a speed change mechanism and a traveling mechanism, the power mechanism is used for providing power for the speed change mechanism, the speed change mechanism comprises a gearbox 11, an input shaft and a power output shaft 12, the input shaft is connected with the power mechanism, the power output shaft 12 is connected with the traveling mechanism, and the speed change mechanism realizes gear change for the traveling speed of the traveling mechanism; the grass mowing mechanism comprises a knife rest 10 and a cutter 20 which is rotatably connected to the knife rest 10, the machine frame is fixedly connected with the knife rest 10, the change-over shaft 13 drives the cutter 20 to rotate, specifically, a rotating shaft is fixedly connected to the cutter 20, the rotating shaft is in transmission connection with the change-over shaft 13 through a belt wheel and a belt 14, and therefore power of a driving part is transmitted to the cutter 20 through the change-over shaft 13 to drive the cutter 20 to rotate.

Referring to fig. 1 to 3, the rack is fixedly connected with an adapter 15 through screws, the adapter 15 encloses the bevel gear assembly, the adapter 15 is provided with an observation hole, the observation hole is connected with a plug 16 through threads, and the plug 16 can be detached from the observation hole. The adapter 15 is fixedly connected with a bearing frame through screws, the bearing frame comprises a bearing plate 17 and a bearing pipe 18 fixedly connected with the bearing plate 17, the bearing plate 17 is fixedly connected with the tool rest 10, meanwhile, the bearing plate 17 is fixedly connected with the adapter 15, the bearing pipe 18 is fixedly connected with the bearing plate 17, and the conversion shaft 13 is rotatably connected in the bearing pipe 18.

Combine figure 1, fig. 4 to 6, the machine of beating grass still includes protection casing 3, support frame 4 and the removal wheel 5 that is used for removing and supporting the mechanism of beating grass, protection casing 3 fixed connection is on knife rest 10, support frame 4 rotates to be connected on knife rest 10, cutter 20 and support frame 4 are located the inside and outside both sides of protection casing 3, it connects in support frame 4 bottom to remove wheel 5 to rotate, support frame 4 is the U type, the quantity that removes wheel 5 is 2, two remove wheel 5 and are located two free ends of support frame 4U type respectively.

An adjusting piece 6 is connected between the tool rest 10 and the support frame 4, the adjusting piece 6 is used for adjusting the rotation angle of the support frame 4 relative to the tool rest 10, and the adjusting piece 6 is positioned in the middle of the support frame 4 and is inclined to the left or the right.

The adjusting part 6 comprises an adjusting rod 61, an adjusting fixed block 62 and an adjusting rotating block 63, the adjusting rod 61 is sleeved on the adjusting fixed block 62 and the adjusting rotating block 63, the adjusting rod 61 can move on the adjusting fixed block 62 along the self axial direction, specifically, the adjusting rod 61 is a screw rod, and the adjusting rod 61 is in threaded connection with the adjusting fixed block 62; adjust fixed block 62 and rotate to be connected on knife rest 10 (the welding has fixing base 64 on knife rest 10, adjusts fixed block 62 and rotates to be connected on fixing base 64), adjusts rotatory piece 63 and rotates with support frame 4 and is connected (the welding has fixed plate 65 on support frame 4, adjusts rotatory piece 63 and rotates to be connected on fixed plate 65).

The adjusting rod 61 is fixedly connected with an adjusting handle 7, the adjusting handle 7 comprises a handle knife rest 10 and a rotating arm 71 eccentrically arranged relative to the adjusting rod 61, the rotating arm 71 is fixedly connected with the handle knife rest 10, and the handle knife rest 10 is fixedly connected with the adjusting rod 61 through bolts and nuts.

The specific implementation process is as follows:

when the present embodiment is adopted, when the cutter 20 works, the driving part drives the power output shaft 12 to rotate, and the power is transmitted to the rotating shaft fixedly connected with the cutter 20 through the power output shaft 12, the bevel gear set, the change-over shaft 13, the belt pulley and the belt 14 in sequence, so as to drive the cutter 20 to rotate; that is, the present embodiment utilizes the conversion shaft 13 and the bevel gear set to utilize the existing driving component, and realizes the vertical transmission of power so that the existing driving component can be applied to the grass trimmer, thereby completing the grass trimming work of the cutter 20, reducing the cost of the driving component of the new design of the grass trimmer, and simultaneously increasing the function diversification of the agricultural machine.

In addition, the adjustment of the angle of the supporting frame 4 is realized through the adjusting part 6 of the grass mowing mechanism, specifically, an operator applies an external force on the rotating arm 71, so that the adjusting handle 7 drives the adjusting rod 61 to rotate, the adjusting rod 61 moves along the axial direction of the adjusting rod 61 under the threaded fit with the adjusting fixed block 62, the adjusting rotating block 63 is sleeved on the adjusting rod 61, the adjusting rotating block 63 is rotatably connected with the adjusting rod 61, the adjusting rotating block 63 axially moves along with the adjusting rod 61, the adjusting rotating block 63 drives the fixed plate 65 to move through the rotating connection with the fixed plate 65, the fixed plate 65 is fixedly connected with the supporting frame 4, further, the supporting frame 4 rotates relative to the knife rest 10, the adjusting handle 7 is loosened, the threaded connection between the adjusting rod 61 and the adjusting fixed block 62 has a self-locking function, so that the rotated angle of the supporting frame 4 is maintained, and after the supporting frame 4 rotates, the distance between the bottom of the moving wheel 5 connected with the bottom of the supporting frame 4 and the bottom of the cutter 20 is changed.

When the grass trimmer is used for cutting grass on a lawn, the bottom of the movable wheel 5 is lower than the bottom of the cutter 20 according to the depth use requirement of the grass cutting of the lawn, and when the grass trimmer is used for cutting the grass on the lawn, the movable wheel 5 acts on the ground to support the grass cutting mechanism and facilitate the movement of the grass trimmer, so that the grass on the lawn after being cut by the grass trimmer is consistent in height, and the attractiveness of the lawn after being cut is ensured; when the grass mower is used in wasteland, the rotating angle of the support frame 4 relative to the tool rest 10 is adjusted through the adjusting piece 6, so that the bottom of the movable wheel 5 is higher than the bottom of the tool 20, when grass is cut, the movable wheel 5 cannot influence the grass cutting depth of the tool 20, and the grass cutting depth is manually controlled according to the actual growth of weeds when the wasteland is cut; therefore, the grass mowing machine of the embodiment can meet the use requirement of grass cutting for wasteland reclaiming or agricultural land at the same time.

In addition, this embodiment is because of can adjusting the interval between 5 bottoms of removal wheel and the cutter 20 bottom through regulating part 6 and support frame 4, then when in actual use, can be through the interval adjustment between 5 bottoms of removal wheel and the cutter 20 bottom, combine the lawn actual conditions to compromise the pleasing to the eye on lawn and the frequency of cutting the grass, if to the sparser condition in lawn grass, can improve the aesthetic property on lawn through reducing the reserve depth of grass on the grass of cutting the grass depth, and to the grass on lawn that the grass is comparatively dense and the growth vigor is faster on lawn, then can suitably increase the grass cutting depth and reduce the frequency of cutting the grass.

Example two

Referring to fig. 7, a difference between the second embodiment and the first embodiment is that the adjusting element 6 of the present embodiment is different, the adjusting element 6 of the present embodiment is an adjusting plate directly and fixedly connected to the support frame 4, the adjusting plate is provided with a plurality of adjusting holes 81, the plurality of adjusting holes 81 are circumferentially arranged along the rotation center of the support frame 4, the tool rest 10 is provided with a limiting hole matched with the position of the adjusting hole 81, when the rotation angle of the support frame 4 is adjusted, after the support frame 4 rotates a certain angle, the adjusting hole 81 under the certain angle is aligned with the limiting hole, and then the limiting hole and the adjusting hole 81 are inserted with a limiting stud 82, so that the angle of the support frame 4 after rotation is maintained.

EXAMPLE III

Referring to fig. 8, a difference between the third embodiment and the first embodiment is that, the adjusting member 6 of the present embodiment is different from the first embodiment in that the adjusting member 6 of the present embodiment adopts an arc-shaped plate fixedly connected to the tool rest 10, a moving path of the upper surface of the arc-shaped plate coincides with that of the upper portion of the support frame 4 when rotating, a plurality of blocking holes are formed in the arc-shaped plate, the blocking pins 83 can be inserted into the blocking holes, when the support frame 4 rotates, the support frame 4 is attached to the arc-shaped plate, and in order to ensure that the support frame 4 is kept at an adjusted angle, the angle of the support frame 4 after rotating is kept by inserting the blocking pins 83 into the left and right sides of the support frame 4.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that, for the person skilled in the art, without departing from the structure of the invention, several variants and modifications can be made, which should also be regarded as the scope of protection of the invention, which will not affect the effectiveness of the implementation of the invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. The utility model provides a grass mower, includes frame, driver part and working member, and the driver part includes power output shaft, and the working member is including beating grass mechanism, its characterized in that: the grass mowing mechanism comprises a cutter frame and a cutter rotationally connected to the cutter frame, the machine frame is fixedly connected with the cutter frame, and the conversion shaft drives the cutter to rotate.

2. A lawnmower according to claim 1, wherein: and the rack is also fixedly connected with an adapter which encloses the bevel gear assembly.

3. A lawnmower according to claim 2, wherein: and the adapter is provided with an observation hole.

4. A lawnmower according to claim 2, wherein: the adapter is characterized in that a bearing frame is fixedly connected to the adapter, the bearing frame comprises a bearing plate and a bearing pipe, the bearing plate is fixedly connected with the tool rest, the bearing plate is fixedly connected with the adapter, the bearing pipe is fixedly connected with the bearing plate, and the conversion shaft is rotatably connected into the bearing pipe.

5. A lawnmower according to claim 1, wherein: grass mowing mechanism still includes the support frame and is used for moving the removal wheel that removes and support grass mowing mechanism, and the support frame rotates to be connected on the knife rest, removes the wheel and connects on the support frame, is connected with the regulating part between knife rest and the support frame, and the regulating part is used for adjusting the turned angle of the relative knife rest of support frame.

6. A lawnmower according to claim 5, wherein: the adjusting part comprises an adjusting rod, an adjusting fixed block and an adjusting rotating block, the adjusting rod is sleeved on the adjusting fixed block and the adjusting rotating block at the same time, the adjusting rod can move on the adjusting fixed block along the axial direction of the adjusting rod, the adjusting rod rotates with the adjusting rotating block, one of the adjusting fixed block and the adjusting rotating block is connected with the knife rest in a rotating mode, and the other one of the adjusting fixed block and the adjusting rotating block is connected with the support frame in a rotating mode.

7. A lawnmower according to claim 6, wherein: the adjusting fixing block is rotatably connected to the knife rest, and the adjusting rotating block is rotatably connected with the support frame.

8. A lawnmower according to claim 7, wherein: the adjusting rod is a screw rod and is in threaded connection with the adjusting fixing block.

9. A lawnmower according to claim 8, wherein: the adjusting rod is fixedly connected with an adjusting handle, the adjusting handle comprises a handle knife rest and a rotating arm eccentrically arranged relative to the adjusting rod, the rotating arm is connected with the handle knife rest, and the handle knife rest is fixedly connected with the adjusting rod.

10. A lawnmower according to claim 6, wherein: the adjusting piece is positioned in the middle of the supporting frame and is inclined to the left or the right.

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