CN212728068U

CN212728068U - Mower transmission device and mower

Info

Publication number: CN212728068U
Application number: CN202021124002.9U
Authority: CN
Inventors: 田兵
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-19
Anticipated expiration: 2030-06-17

Abstract

The utility model provides a lawn mower transmission and lawn mower. The mower transmission device comprises a transmission assembly, a driving motor of the transmission assembly for driving, and a first cutting blade and a second cutting blade which are respectively connected to the driving motor and the transmission assembly; the transmission assembly comprises a first synchronization unit, a second synchronization unit and a synchronization member, wherein the first synchronization unit, the second synchronization unit and the synchronization member are in driving connection with the driving motor, a driving shaft of the driving motor is configured to be used for driving the first synchronization unit and the first cutting blade to operate, and the second synchronization unit is in driving connection with the first synchronization unit through the synchronization member and drives a second cutting blade connected to the second synchronization unit to operate. The utility model discloses a lawn mower transmission's simple structure, but convenient and fast's completion two at least cutting blade's drive for the lawn mower that uses this lawn mower transmission has great radius of mowing and lower energy consumption, and can reduce the production and the use cost of lawn mower, makes things convenient for the popularization and the use of lawn mower.

Description

Mower transmission device and mower

Technical Field

The utility model relates to a lawn mower transmission and use this lawn mower transmission's lawn mower belongs to the garden instrument field.

Background

The mower is a common garden tool, and the technology of a high-voltage lithium battery is mature day by day, so that the lithium battery industry is driven to develop rapidly; the brushless motor has high efficiency, and the brushless motor industry is driven to develop vigorously; the integration and intelligence of the controller are higher and higher, and the electronic industry is driven to develop rapidly.

In the prior art, the garden tool adopting the brushless motor and the lithium battery has a plurality of advantages, gradually replaces the traditional gasoline garden tool, has the market share which is gradually enlarged, and the double-blade or multi-blade grass mower has the characteristics that the cutting radius is larger than that of the traditional grass mower and the efficiency is higher as a novel grass mower, and can provide better experience for a user, so that how to provide the grass mower with small whole machine volume and large cutting radius becomes the key point for the development of the electric grass mower.

In view of the above, there is a need to provide a new lawn mower to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lawn mower transmission and use this lawn mower transmission's lawn mower, this lawn mower transmission's simple structure, but two at least cutting blade's of convenient and fast's completion drive for the lawn mower that uses this lawn mower transmission has great radius of mowing and lower energy consumption, and can reduce the production and the use cost of lawn mower, makes things convenient for the popularization and the use of lawn mower.

In order to realize the above utility model, the utility model provides a transmission device of grass cutter, include: the cutting device comprises a transmission assembly, a driving motor for driving the transmission assembly, and a first cutting blade and a second cutting blade which are respectively connected to the driving motor and the transmission assembly; the transmission assembly comprises a first synchronizing unit, a second synchronizing unit and a synchronizing member, wherein the first synchronizing unit, the second synchronizing unit and the synchronizing member are in driving connection with the driving motor, a driving shaft of the driving motor is configured to be used for driving the first synchronizing unit and the first cutting blade to operate, the second synchronizing unit is in driving connection with the first synchronizing unit through the synchronizing member and drives the second cutting blade connected to the second synchronizing unit to operate, and the first cutting blade and the second cutting blade are arranged in a staggered mode in the extending direction of the first cutting blade and the second cutting blade.

As a further improvement, the transmission device of the lawn mower further comprises a box body and an cover plate corresponding to the box body, wherein the transmission assembly is accommodated in the accommodating space formed by the box body and the cover plate.

As a further improvement of the present invention, the first synchronizing unit includes a first rotating shaft and a first synchronizing wheel disposed on the first rotating shaft, and the central axis of the first rotating shaft is parallel to the central axis of the driving shaft.

As a further improvement of the utility model, the both ends of first pivot are provided with the first bearing respectively, just first pivot passes through the first bearing rotates the card and is in the diapire of box with between the apron.

As a further improvement of the present invention, the transmission assembly further includes a first gear disposed on the driving shaft and a second gear disposed on the first rotating shaft, and the first gear is engaged with the second gear.

As a further improvement of the present invention, the second synchronizing unit includes a second rotating shaft and is disposed on the second synchronizing wheel disposed on the second rotating shaft, and the central axis of the second rotating shaft is respectively parallel to the central axis of the first rotating shaft and/or the central axis of the driving shaft.

As a further improvement of the utility model, the second pivot is including accommodating stiff end in the accommodating space and being used for connecting second cutting blade's link, the stiff end is rotatable to holding on the apron, the link runs through the box, just the link with be equipped with the second bearing between the box.

As a further improvement of the present invention, the transmission assembly further comprises a tension member disposed between the first synchronizing unit and the second synchronizing unit.

As a further improvement of the present invention, the tensioning member is a tensioning wheel, and the tensioning wheel is rotatably fixed in the accommodating space through a positioning shaft.

In order to realize the utility model discloses the purpose, the utility model also provides a lawn mower, include grass cutting device, be used for doing grass cutting device provides the power supply unit of electric power and drives the running gear that the lawn mower walked, grass cutting device includes lawn mower transmission and is used for bearing grass mower transmission's the device that bears, grass mower transmission is including setting up bear the device on the drive assembly, be used for the drive assembly's driving motor and connect respectively driving motor with last first cutting blade and the second cutting blade of drive assembly, drive assembly with first cutting blade second cutting blade sets up respectively bear the both sides of device, just first cutting blade with second cutting blade sets up in its extending direction is crisscross.

As a further improvement of the utility model, the mower transmission device further comprises a box body and an apron corresponding to the box body, the transmission assembly comprises a first synchronization unit, a second synchronization unit and a synchronization member connected with the drive of the drive motor, and the transmission assembly is accommodated in the box body and the accommodating space formed by the apron block.

As a further improvement of the present invention, the driving motor is clamped and fixed between the bottom wall of the box body and the carrying device, and one end of the driving shaft of the driving motor penetrates through the bottom wall of the box body to drive the first synchronization unit to operate; the other end of the first cutting blade penetrates through the bearing device and is connected with the first cutting blade.

As a further improvement of the present invention, the first synchronizing unit includes a first rotating shaft and a first synchronizing wheel disposed on the first rotating shaft, the transmission assembly further includes a first gear disposed on the driving shaft and a second gear disposed on the first rotating shaft, and the first gear is engaged with the second gear.

As a further improvement of the present invention, the second synchronizing unit is connected to the first synchronizing unit through the synchronizing member, the second shaft includes a fixed end received in the receiving space and a connecting end for connecting the second cutting blade, the fixed end is rotatably supported to the cover plate, the connecting end is connected to the bottom wall of the box and the bearing device and the second cutting blade.

As a further improvement of the present invention, the transmission assembly further comprises a tension member disposed between the first synchronizing unit and the second synchronizing unit, and the tension member is located at a side of the synchronizing member to tension the synchronizing member.

The utility model has the advantages that: the utility model discloses a lawn mower transmission is through setting up transmission for this lawn mower transmission only can accomplish two cutting blade's drive through a driving motor, conveyer's simple structure in this application simultaneously, energy consumption is low, when avoiding two cutting blade to hit the sword, makes the lawn mower that uses this lawn mower transmission have great cutting area and less volume, makes things convenient for the popularization and the use of lawn mower.

Drawings

FIG. 1 is a perspective view of a lawn mower of the present application;

FIG. 2 is a perspective view of a mower transmission of the present application;

FIG. 3 is a top view of the mower drive of the present application with the cover omitted;

FIG. 4 is an exploded view of a mower transmission of the present application;

FIG. 5 is a bottom view of a mower transmission of the present application;

FIG. 6 is a schematic cross-sectional view of a mower drive of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1, in order to provide a lawn mower 100 according to the present invention, the lawn mower 100 includes a lawn mowing device 101, a power supply device (not shown) for providing power to the lawn mowing device 101, and a traveling device 102 for driving the lawn mower 100 to travel.

Referring to fig. 2, the lawn mower apparatus 101 includes a mower transmission 10 and a carrying device 20 for carrying the mower transmission 10, wherein the mower transmission 10 is used for carrying the mower transmission 10, and the carrying device 20 is used for supporting and carrying the mower transmission 10 so as to control the mower transmission 10 to perform a corresponding mowing task.

Specifically, the mower transmission 10 includes a transmission assembly 1, a driving motor 2 for driving the transmission assembly 1, and a first cutting blade 3 and a second cutting blade 4 respectively connected to the driving motor 2 and the transmission assembly 1, and the first cutting blade 3 and the second cutting blade 4 are both accommodated in a carrier 20.

Referring to fig. 2 to 6, the transmission assembly 1 is used for connecting the driving motor 2 and the first and

second cutting blades

3 and 4 to transmit power of the driving motor 2. In the present application, the transmission assembly 1 comprises a first synchronization unit 11, a second synchronization unit 12 and a synchronization member 13 in driving connection with the drive motor 2.

In the present application, the first synchronizing unit 11 includes a first rotating shaft 111 and a first synchronizing wheel 112 disposed on the first rotating shaft 111, and a central axis of the first rotating shaft 111 and a central axis of the first synchronizing wheel 112 are located on the same straight line; similarly, the second synchronizing unit 12 includes a second rotating shaft 121 and a second synchronizing wheel 122 disposed on the second rotating shaft 121, and a central axis of the second rotating shaft 121 and a central axis of the second synchronizing wheel 122 are located on the same straight line.

Further, the central axis of the first rotating shaft 111 and the central axis of the second rotating shaft 121 are parallel to each other, and the synchronizing member 13 is simultaneously coupled to the first synchronizing wheel 112 and the second synchronizing wheel 122, so that the first passing unit 11 and the second synchronizing unit 12 are integrally coupled.

In a preferred embodiment of the present application, the synchronizing member 13 is a synchronous belt, the center lines of the first synchronizing wheel 112 and the second synchronizing wheel 122 in the thickness direction thereof are located on the same plane, and the outer circumferential surfaces of the first synchronizing wheel 111 and the second synchronizing wheel 121 are both provided with receiving grooves 14 for holding and fixing the synchronous belt, so that the stability of the synchronous belt when the synchronous belt is connected with the first synchronizing wheel 111 and the second synchronizing wheel 121 can be effectively prevented, and the stability of the transmission between the first synchronizing unit 11 and the second synchronizing unit 12 can be ensured; of course, in other embodiments of the present application, the synchronizing member 13 may also be another transmission member for transmitting and connecting the first synchronizing wheel 111 and the second synchronizing wheel 112, that is, the specific arrangement of the synchronizing member 13 may be selected according to actual needs, and is not limited herein.

In the present embodiment, the transmission assembly 1 further has a tensioning member 15 for tensioning the synchronizing member 13, and the tensioning member 15 is fixed beside the synchronizing member 13 through a positioning shaft 151 so as to tension the synchronizing member 13 to ensure stable, safe and reliable operation of the transmission assembly 1. Furthermore, the central axis of the positioning shaft 151 is parallel to the central axis of the first rotating shaft 111 and the central axis of the second rotating shaft 121, and similarly, the tensioning member 15 is also provided with an accommodating groove 14 for clamping and fixing the synchronizing member 13, so that the synchronizing member 14 is prevented from being separated from the tensioning member 15 while the tensioning synchronizing member 13 ensures that the first synchronizing unit 11 and the second synchronizing unit 12 synchronously move; preferably, the tension member 15 is a tension wheel.

It should be noted that, in the drawings of the present application, only one of the synchronizing member 13 and the tensioning member 15 is taken as an example for illustration, in other embodiments of the present application, a plurality of synchronizing members 13 may be provided at the same time, further, the accommodating groove 14 or other accommodating structure (not shown) for accommodating the synchronizing member 13 is provided corresponding to the synchronizing member 13, and the plurality of accommodating grooves 14/other accommodating structures are provided in parallel with each other; similarly, a plurality of tensioning members 15 can be provided at the same time, and a plurality of tensioning members 15 can be provided beside the synchronizing member 13 to tension one or more synchronizing members 13 at the same time, so as to further improve the safety and reliability of the operation of the transmission assembly 1.

In a preferred embodiment of the present application, the mower transmission 10 further comprises a case 16 for housing the transmission assembly 1 and a cover 17 disposed in correspondence with the case 16. Specifically, the first synchronizing unit 11 is rotatably accommodated in an accommodating space 160 formed by the engagement of the case 16 and the cover 17, wherein the first bearings 113 are respectively disposed at two ends of the first rotating shaft 111, so that the first rotating shaft 111 is rotatably held between the bottom wall 161 of the case 16 and the cover 17 by the first bearings 113, and the first synchronizing wheel 112 can rotate synchronously with the first rotating shaft 112 to drive the second synchronizing unit 12 to rotate synchronously by the synchronizing member 13.

Further, the second rotating shaft 121 comprises a fixed end 123 accommodated in the accommodating space 160 and a connecting end 124 for connecting the second cutting blade 4, wherein the second synchronizing wheel 122 is fixed on the fixed end 123, and an end of the fixed end 123 rotatably abuts against the cover plate 17; the connecting end 124 extends through the bottom wall 161 of the box 16 and the carrying device 20 to connect the second cutting blade 4, and in this application, a second bearing 125 is further provided between the connecting end 124 and the box 16 to ensure that the second rotating shaft 121 can rotate freely in the box 12.

In a preferred embodiment of the present application, the box 16 further has a receiving cavity 126 for receiving the connecting end 124, specifically, the receiving cavity 126 is formed by extending the bottom wall 161 of the box 16 along a direction of the second rotating shaft 121 away from the cover plate 17 and abuts against the carrying device 20, further, both ends of the receiving cavity 126 are provided with a baffle 127, the second rotating shaft 121 penetrates through the two baffles 127 and the carrying device 20 to connect the second cutting blade 4, and second bearings 125 for rotatably fixing the second rotating shaft 121 are respectively disposed on the baffles 127, so as to, on one hand, facilitate the rotation of the second rotating shaft 121; on the other hand, the second rotating shaft 121 can be effectively prevented from shaking in the rotating process, and the stability of the second rotating shaft 125 connected with the second cutting blade 4 can be ensured.

Further, the synchronizing member 13 and the tension member 15 are also accommodated in the accommodating space 160, and the tension member 15 is rotatably fixed between the bottom wall 161 and the cover plate 17 through the positioning shaft 151, so that the transmission assembly 1 can be conveniently mounted and placed, and the assembly and production efficiency of the transmission assembly 1 is effectively improved.

The driving motor 2 is used for driving the first cutting blade 3 to rotate; and further drives the second cutting blade 4 to rotate through the transmission assembly 1 so as to finally perform a mowing task. In the present application, the driving motor 2 has a driving shaft 21 disposed through a main body (not numbered), and the main body of the driving motor 2 is held and fixed between the case 21 and the carrier 20, and further, one end of the driving shaft 21 penetrates through a bottom wall 161 of the case 16 to connect the second cutting blade 4 through the transmission assembly 1; the other end is connected with a first cutting blade 3, and the first cutting blade 3 and a second cutting blade 4 can synchronously rotate under the driving action of a driving motor 2, preferably, the driving motor 2 is a direct current brushless motor.

In a preferred embodiment of the present application, the driving motor 2 is drivingly connected to the first synchronization unit 11 by providing a first gear 18 and a second gear 19 in the transmission assembly 1. Specifically, the first gear 18 is disposed on the upper portion of the driving shaft 21, the second gear 19 is disposed on the first rotating shaft 111, and the first gear 18 and the second gear 19 are engaged with each other, so that when the driving shaft 21 rotates the first gear 18, the first synchronization unit 11 is driven to operate by the second gear 19 under the engagement. Preferably, the first gear 18 and the second gear 2 in the present application have the same size and are accommodated in the accommodating space 160, and further, the second gear 19 is located below the first synchronizing wheel 112, so that the overall size of the transmission assembly 1 can be reduced while driving the first synchronizing unit 11 to operate.

Furthermore, the first cutting blade 3 and the second cutting blade 4 have the same structural dimension, and the first cutting blade 3 and the second cutting blade 4 are located on the same rotating plane, so that the mowing efficiency of the mower transmission device 10 can be effectively improved. In particular, since the first cutting blade 3 and the second cutting blade 4 rotate synchronously, in order to avoid the situation that the first cutting blade 3 and the second cutting blade 4 collide with each other during the movement of the first cutting blade 3 and the second cutting blade 4, the first cutting blade 3 and the second cutting blade 4 are arranged in a staggered manner in the extending direction thereof. Preferably, the directions of extension of the first cutting blade 3 and the second cutting blade 4 are perpendicular to each other, that is, the second cutting blade 4 is at the minimum position when the first cutting blade 3 is at the maximum position, so that the center distance between the first cutting blade 3 and the second cutting blade 4, or the center distance between the driving shaft 21 and the second rotating shaft 121, is smaller than the total length of the two cutting blades while avoiding the occurrence of a cutter bumping situation, and the volume of the mower transmission device 10 can be effectively controlled.

Specifically, when the mower transmission 10 of the present application is used, the driving motor 2 is operated, the driving shaft 21 rotates the first gear 18 and the first cutting blade 3 synchronously, the first synchronizing wheel 112 rotates around the first rotating shaft 111 under the meshing action of the first gear 18 and the second gear 19, and the synchronizing member 13 rotates with the first synchronizing wheel 112 and rotates the second synchronizing wheel 122 and the second rotating shaft 121, so as to finally drive the second cutting blade 4 to rotate with the second rotating shaft 121 synchronously with the first cutting blade 3.

The carrier 20 is located below the mower transmission 10 and includes a working space 201 for accommodating the first cutting blade 3 and the second cutting blade 4, specifically, the main body of the driving motor 2 is held and fixed between the bottom wall 161 of the box 16 and the carrier 20, and the driving shaft 21 of the driving motor 2 penetrates the carrier 20 to be connected with the first cutting blade 3; so that the first cutting blade 3 is fixed in the working space 201, and in the present application, the edge of the carrier 20 is protruded toward the side of the mower transmission 10 to form an air duct 202 for guiding out the crushed grass, so as to further improve the convenience of use of the mower 100.

In a preferred embodiment of the present application, the case 16 of the mower transmission device 10 and the carrying device 20 are integrally formed, so as to effectively improve the convenience of manufacturing the mower device 101 of the present application, but in other embodiments of the present application, the case 16 and the carrying device 20 can be separately disposed, so as to reduce the difficulty of assembling the mower transmission device 10, that is, the specific connection form of the mower transmission device 10 and the carrying device 20 in the present application can be selected according to actual needs, and is not limited herein.

The power supply device is used for supplying power to the mowing device 101 and the traveling device 102 and controlling the operation of the mowing device 101 and the traveling device 102, preferably, the power supply device is a lithium battery pack, and in the application, a plurality of lithium battery packs can be arranged at the same time so as to guarantee the cruising ability of the mowing machine 100.

The traveling device 102 is mounted on the bottom of the mower 100, and includes traveling wheels 1021 at the front in the traveling direction of the mower 100 and driving wheels 1022 at the rear in the traveling direction of the mower 100, and in this application, the traveling device 102 further includes a driving device (not shown).

It should be noted that the structure of the lawn mower 100 in the present application is only exemplary, and in other embodiments of the present application, the lawn mower 100 may also be configured in other structures, which should not be limited to the structure shown in the drawings.

To sum up, the utility model discloses a lawn mower transmission 10 is through setting up transmission 1 and corresponding the tensioning member 15 who sets up with transmission 1 for this lawn mower transmission 10 only can accomplish the drive of two

cutting blade

3, 4 through a driving motor 2, transmission 1's simple structure in this application simultaneously, energy consumption is low, when avoiding two

cutting blade

3, 4 to hit the sword, make the lawn mower 100 who uses this lawn mower transmission 10 have great cutting area and less volume, make things convenient for the popularization and the use of lawn mower.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A mower transmission comprising: the cutting device comprises a transmission assembly, a driving motor for driving the transmission assembly, and a first cutting blade and a second cutting blade which are respectively connected to the driving motor and the transmission assembly; the method is characterized in that: the transmission assembly comprises a first synchronizing unit, a second synchronizing unit and a synchronizing member, wherein the first synchronizing unit, the second synchronizing unit and the synchronizing member are in driving connection with the driving motor, a driving shaft of the driving motor is configured to be used for driving the first synchronizing unit and the first cutting blade to operate, the second synchronizing unit is in driving connection with the first synchronizing unit through the synchronizing member and drives the second cutting blade connected to the second synchronizing unit to operate, and the first cutting blade and the second cutting blade are arranged in a staggered mode in the extending direction of the first cutting blade and the second cutting blade.

2. The mower transmission of claim 1, wherein: the transmission device of the mower further comprises a box body and a cover plate arranged corresponding to the box body, and the transmission assembly is accommodated in an accommodating space formed by clamping the box body and the cover plate.

3. The mower transmission of claim 2, wherein: the first synchronizing unit comprises a first rotating shaft and a first synchronizing wheel arranged on the first rotating shaft, and the central axis of the first rotating shaft is parallel to the central axis of the driving shaft.

4. The mower transmission of claim 3, wherein: the two ends of the first rotating shaft are respectively provided with a first bearing, and the first rotating shaft is rotatably clamped between the bottom wall of the box body and the cover plate through the first bearings.

5. The mower transmission of claim 3, wherein: the transmission assembly further comprises a first gear arranged on the driving shaft and a second gear arranged on the first rotating shaft, and the first gear and the second gear are meshed.

6. The mower transmission of claim 3, wherein: the second synchronization unit comprises a second rotating shaft and a second synchronization wheel arranged on the second rotating shaft, and the central axis of the second rotating shaft is parallel to the central axis of the first rotating shaft and/or the central axis of the driving shaft.

7. The mower transmission of claim 6, wherein: the second pivot is including acceping the stiff end in the accommodating space and being used for connecting the link of second cutting blade, the stiff end is rotatable to be held on the apron, the link runs through the box, just the link with be equipped with the second bearing between the box.

8. The mower transmission of claim 2, wherein: the transmission assembly further includes a tension member disposed between the first synchronizing unit and the second synchronizing unit.

9. The mower transmission of claim 8, wherein: the tensioning member is a tensioning wheel, and the tensioning wheel is rotationally fixed in the accommodating space through a positioning shaft.

10. A lawn mower, including grass cutting device, be used for providing the power supply unit of electric power and the running gear who drives the walking of grass cutting machine for grass cutting device, its characterized in that: the mower assembly comprising a mower drive assembly according to any one of claims 1 to 9.