Lawn mower gear box and lawn mower

Abstract

The utility model provides a lawn mower gear box and lawn mower, including: support device, output device, lifting device and blade device, wherein the support device is disk-shaped, is provided with semi-surrounded first frame; the output device is arranged on one side of the supporting device and comprises a first bearing, a shell, a first gear, a second bearing and an output shaft, and the first bearing is arranged in the first frame; the shell is connected with the first frame to form a cavity, and a notch is formed in the side, away from the supporting device, of the shell. The first gear is arranged in the cavity; the second bearing is arranged in the notch; the output shaft penetrates through the cavity; the lifting device is arranged on the output shaft; the blade device is arranged on the side, away from the lifting device, of the output shaft. Wherein the lifting device controls the working height of the blade device, and the output shaft drives the blade device to operate. The utility model solves the problem of how to realize the operation requirements of different heights of the mower and improve the working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery transmission, in particular to a lawn mower gear box and a lawn mower. Background Art

[0002] With the continuous development of science and technology, more and more types of agricultural machinery have emerged. Different types of weeds will be produced in different regions, and the removal methods of different types of weeds are also different. Therefore, different agricultural machinery and corresponding measures are needed to deal with them. However, in the existing technology, reciprocating mowers cannot meet the requirements and are inefficient. It can be seen that it is necessary to develop a mower that can improve efficiency, adapt to different terrains, and have low noise at this stage. Utility Model Content

[0003] The problem solved by the utility model is how a lawn mower can realize operation requirements at different heights and improve work efficiency.

[0004] To solve the above problems, the utility model provides a lawn mower gearbox, comprising: a supporting device, an output device, a lifting device and a blade device, wherein the supporting device is in the shape of a disc, and a first frame is provided on the supporting device; the output device is arranged on one side of the supporting device, and comprises: a first bearing, a shell, a first gear, a second bearing and an output shaft, wherein the first bearing is arranged in the first frame; the shell is connected to the first frame to form a cavity, and a notch is provided on the side of the shell away from the supporting device; the first gear is arranged in the cavity; the second bearing is arranged in the notch; the output shaft passes through the cavity; the lifting device is arranged on the output shaft; the blade device is arranged on the side of the output shaft away from the lifting device; wherein the lifting device controls the working height of the blade device, and the output shaft drives the blade device to operate.

[0005] The technical effects achieved after adopting this technical solution are as follows: a disc-shaped support device is used, which helps to improve the stability and load-bearing capacity of the gearbox, and also facilitates the installation and maintenance of internal components; by rationally arranging the internal components and the output shaft, effective power transmission is ensured, while wear and noise during operation are reduced; the lifting device improves the working requirements of the blade device in different environments, ensures the flexibility of actual operations, and improves work efficiency.

[0006] Furthermore, the lawn mower gearbox also includes: a power device, which is arranged on a side of the supporting device away from the output device, including a motor, an input shaft and a protective cover, the input shaft passes through the motor, and the motor and the input shaft are arranged on the protective cover.

[0007] The technical effect achieved after adopting this technical solution: the setting of the motor, input shaft and protective cover not only provides a stable power source, but also protects the power device to effectively prevent external foreign matter from entering, thereby extending the service life of the equipment.

[0008] Furthermore, the lawn mower gearbox also includes: a transmission gear, which is arranged in the cavity and meshes with the first gear.

[0009] The technical effect achieved after adopting this technical solution is that the meshing of the transmission gear and the first gear ensures the efficient transmission of power from the input shaft to the output shaft.

[0010] Furthermore, the input shaft includes: a first end and a second end, wherein the first end is connected to the motor; the second end passes through the supporting device and is connected to the transmission gear; wherein the motor drives the input shaft, and the input shaft drives the transmission gear to rotate.

[0011] The technical effect achieved after adopting this technical solution: the design of the input shaft ensures that the power of the motor can be smoothly transmitted to the transmission gear, thereby driving the entire gear system to operate.

[0012] Furthermore, the first gear and the transmission gear are helical gears for reducing noise in the cavity.

[0013] The technical effect achieved after adopting this technical solution: the helical gear design can significantly reduce working noise and improve the user experience.

[0014] Furthermore, the lifting device includes: an adjusting screw and a manual adjusting handle, the adjusting screw is connected to the output shaft; the manual adjusting handle is connected to the adjusting screw; wherein, the position of the adjusting screw can be changed by rotating the manual adjusting handle, thereby adjusting the height of the blade device.

[0015] The technical effect achieved after adopting this technical solution is: the height of the blade device can be adjusted by adjusting the screw rod and the manual adjustment handle, and the user can flexibly adjust the mowing height according to actual needs, thereby improving the convenience of use and the scope of application.

[0016] Furthermore, the protective cover is fixed to the supporting device by fasteners.

[0017] The technical effect achieved after adopting this technical solution is that the protective cover is fixed to the supporting device, thereby improving the safety and stability of the lawn mower gear box during operation.

[0018] Furthermore, the supporting device further comprises: a second frame, which is arranged on a side of the supporting device away from the first frame, and an outer side wall of the second frame is tangent to an outer side wall of the supporting device.

[0019] The technical effect achieved after adopting this technical solution is as follows: by setting up the second frame, the strength of the supporting device can be increased, and installation positions can be provided for other components, which helps to optimize the overall structure.

[0020] Furthermore, the blade device is provided with a cutter head, and a guide groove is provided on a side of the cutter head away from the output shaft, so that the guide groove prevents grass leaves from being retained on the cutter head when the cutter head is working.

[0021] The technical effect achieved after adopting this technical solution is: by setting a guide groove on the cutter head, the adhesion of debris such as grass leaves can be effectively reduced, the blade can be kept clean, and the cutting efficiency can be improved.

[0022] In order to solve the above problems, the utility model provides a lawn mower, comprising a lawn mower gear box provided by any of the above technical solutions.

[0023] The technical effect achieved after adopting this technical solution is: increasing the use scenarios of the lawn mower and improving the working efficiency of the lawn mower.

[0024] In summary, the above-mentioned technical solutions of the present application may have one or more of the following advantages or beneficial effects: i) The blade heights are adjusted to ensure that the mower is suitable for different working requirements, thereby increasing the use efficiency of the mower. ii) The first gear and the transmission gear adopt a helical gear design, which reduces the noise of the mower during operation and improves the user experience. iii) A guide groove is provided on the cutter head to prevent debris from accumulating when the mower is working, keep the blade device clean, and improve cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of a lawn mower gearbox according to an embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of a left side view of a lawn mower gearbox according to an embodiment of the utility model;

[0027] Figure 3 for Figure 2 Cross-sectional view along AA direction;

[0028] Figure 4 for Figure 3 A partial enlarged view of

[0029] Figure 5 This is a structural schematic diagram of a lawn mower according to an embodiment of the utility model;

[0030] Figure 6 for Figure 5 Cross-sectional view along direction BB.

[0031] Description of reference numerals:

[0032] 100-mower gearbox; 110-support device; 111-first frame; 112-fastener; 113-second frame; 120-output device; 121-first bearing; 122-housing; 122a-notch; 123-cavity; 124-first gear; 125-second bearing; 126-output shaft; 130-lifting device; 131-adjusting screw; 132-manual adjustment handle; 140-blade device; 141-cutter head; 142-guide groove; 150-power device; 151-motor; 152-input shaft; 152a-first end; 152b-second end; 153-protective cover; 160-transmission gear; 200-mower. DETAILED DESCRIPTION

[0033] The utility model aims to provide a lawn mower gear box and a lawn mower, which are used to realize how the lawn mower can meet the requirements of working at different heights and improve the working efficiency.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a lawn mower gearbox 100, comprising: a support device 110, an output device 120, a lifting device 130 and a blade device 140, wherein the support device 110 is in the shape of a disc, and a first frame 111 is provided on the support device 110; the output device 120 is arranged on one side of the support device 110, and comprises: a first bearing 121, a housing 122, a first gear 124, a second bearing 125 and an output shaft 126, wherein the first bearing 121 is arranged in the first frame 111; the housing 122 and the first frame 111 are connected to each other. 11 are connected to form a cavity 123, and a notch 122a is provided on the side of the shell 122 away from the supporting device 110; the first gear 124 is arranged in the cavity 123; the second bearing 125 is arranged in the notch 122a; the output shaft 126 passes through the cavity 123; the lifting device 130 is arranged on the output shaft 126; the blade device 140 is arranged on the side of the output shaft 126 away from the lifting device 130; wherein the lifting device 130 controls the working height of the blade device 140, and the output shaft 126 drives the blade device 140 to operate.

[0036] In this embodiment, a disc-shaped support device 110 is used, which helps to improve the stability and load-bearing capacity of the gearbox, and also facilitates the installation and maintenance of internal components; by rationally arranging the internal components and the output shaft 126, effective power transmission is ensured, while wear and noise during operation are reduced; the lifting device 130 improves the working requirements of the blade device 140 in different environments, ensures the flexibility of actual operations, and improves work efficiency.

[0037] Specifically, the support device 110 is in the shape of a disk with a circle of protrusions on the edge. A hollow truncated cone is provided on the downward side of the support device 110. The truncated cone is not provided with a top cover, which is the first frame 111. The first frame 111 and the support device 110 are concentric circles; the output device 120 is arranged on the lower side of the support device 110, and the shell 122 and the first frame 111 form a cavity 123. The top of the cavity 123 is close to the support device 110 and a first bearing 121 is provided. A notch 122a is provided at the bottom of the shell 122, and a second bearing 125 is provided at the notch 122a. A first gear 124 is provided between the first bearing 121 and the second bearing 125, and the output shaft 126 passes through the first bearing 121, the first gear 124 and the second bearing 125; the blade device 140 and the lifting device 130 are arranged on the output shaft 126, and the lifting device 130 can control the working height of the blade device 140 to adapt to different environments.

[0038] See also Figure 2 and Figure 3 The lawn mower gearbox 100 also includes: a power device 150, which is arranged on a side of the support device 110 away from the output device 120, and the power device 150 includes a motor 151, an input shaft 152 and a protective cover 153, the input shaft 152 passes through the motor 151, and the motor 151 and the input shaft 152 are arranged in the protective cover 153.

[0039] In this embodiment, the arrangement of the motor 151, the input shaft 152 and the protective cover 153 not only provides a stable power source, but also protects the power device 150 and can effectively prevent external foreign matter from entering, thereby extending the service life of the equipment.

[0040] Specifically, the power device 150 is disposed on the supporting device 110 , and is composed of a protective cover 153 , a motor 151 and an input shaft 152 . The input shaft 152 passes through the motor 151 and is disposed in the protective cover 153 . The motor 151 provides power for the input shaft 152 to rotate.

[0041] See also Figure 3 The lawn mower gearbox 100 further includes a transmission gear 160 , which is disposed in the cavity 123 and meshes with the first gear 124 .

[0042] In this embodiment, the meshing of the transmission gear 160 and the first gear 124 ensures efficient transmission of power from the input shaft 152 to the output shaft 126 .

[0043] Specifically, the transmission gear 160 is disposed in the cavity 123 , and the input shaft 152 passes through the supporting device 110 and the transmission gear 160 , thereby driving the transmission gear 160 to rotate.

[0044] See also Figure 3 The input shaft 152 includes: a first end 152a and a second end 152b, wherein the first end 152a is connected to the motor 151; the second end 152b passes through the supporting device 110 and is connected to the transmission gear 160; wherein the motor 151 drives the input shaft 152, and the input shaft 152 drives the transmission gear 160 to rotate.

[0045] In this embodiment, the design of the input shaft 152 ensures that the power of the motor 151 can be smoothly transmitted to the transmission gear 160, thereby driving the entire gear system to operate.

[0046] Specifically, the input shaft 152 is divided into a first end 152 a and a second end 152 b , the first end 152 a is connected to the motor 151 , and the second end 152 b is connected to the transmission gear 160 .

[0047] See also Figure 3 The first gear 124 and the transmission gear 160 are helical gears, which are used to reduce the noise in the cavity 123.

[0048] In this embodiment, the helical gear design is adopted, which can significantly reduce working noise and improve the user experience.

[0049] Specifically, the first gear 124 and the transmission gear 160 in the cavity 123 are helical gears that mesh with each other.

[0050] See also Figure 3 The lifting device 130 includes: an adjusting screw 131 and a manual adjusting handle 132, the adjusting screw 131 is connected to the output shaft 126; the manual adjusting handle 132 is connected to the adjusting screw 131; wherein, by rotating the manual adjusting handle 132, the position of the adjusting screw 131 can be changed, thereby adjusting the height of the blade device 140.

[0051] In this embodiment, the height of the blade device 140 is adjusted by adjusting the screw rod 131 and the manual adjustment handle 132. The user can flexibly adjust the mowing height according to actual needs, thereby improving the convenience of use and the scope of application.

[0052] Specifically, the lifting device 130 is provided with an adjusting screw 131 and a manual adjusting handle 132 , which cooperate with each other to adjust the working height of the blade device 140 .

[0053] See also Figure 1 and Figure 2 The protective cover 153 is fixed to the supporting device 110 by the fastener 112 .

[0054] In this embodiment, the protective cover 153 is fixed to the supporting device 110, thereby improving the safety and stability of the lawn mower gearbox 100 during operation.

[0055] Specifically, the protective cover 153 is fixed to the supporting device 110 via a plurality of fasteners 112 .

[0056] See also Figure 1 and Figure 2 The supporting device 110 further includes: a second frame 113 , which is disposed on a side of the supporting device 110 away from the first frame 111 , and an outer side wall of the second frame 113 is tangent to an outer side wall of the supporting device 110 .

[0057] In this embodiment, the second frame 113 is provided to increase the strength of the supporting device 110 and provide installation locations for other components, thereby helping to optimize the overall structure.

[0058] Specifically, the second frame 113 has the same shape as the first frame 111 and is disposed on the supporting device 110 . The side wall of the second frame 113 is tangent to the outer side wall of the supporting device 110 , and the power device 150 is disposed on the second frame 113 .

[0059] See also Figure 1 The blade device 140 is provided with a cutter head 141. A guide groove 142 is provided on a side of the cutter head 141 away from the output shaft 126. The guide groove 142 prevents the grass blades from being retained on the cutter head 141 when the cutter head 141 is working.

[0060] In this embodiment, by providing the guide groove 142 on the cutter head 141, the adhesion of debris such as grass leaves can be effectively reduced, the blade can be kept clean, and the cutting efficiency can be improved.

[0061] Specifically, the blade is in a straight line shape, with a cutter head 141 at both ends, and a guide groove 142 behind the cutter head 141 to prevent grass leaves from being retained on the cutter head 141 and affecting the operation of the lawn mower.

[0062] See also Figure 5 and Figure 6 The utility model provides a lawn mower 200, comprising a lawn mower gearbox 100 provided by any of the above technical solutions.

[0063] In this embodiment, the usage scenarios of the lawn mower 200 are increased, and the working efficiency of the lawn mower 200 is improved.

[0064] Specifically, the lawn mower gear box 100 is installed in the lawn mower, and the blade device 140 passes through the bottom of the lawn mower to perform mowing.

[0065] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A lawn mower gearbox (100), characterized in that: include: A supporting device (110), the supporting device (110) being in the shape of a disc, and a first frame (111) being provided on the supporting device (110); An output device (120), the output device (120) being arranged on one side of the supporting device (110), comprising: a first bearing (121), wherein the first bearing (121) is arranged in the first frame (111); A shell (122), the shell (122) being connected to the first frame (111) to form a cavity (123), and a notch (122a) is provided on a side of the shell (122) away from the supporting device (110); a first gear (124), the first gear (124) being arranged in the cavity (123); a second bearing (125), the second bearing (125) being arranged in the notch (122a); an output shaft (126), the output shaft (126) passing through the cavity (123); A lifting device (130), wherein the lifting device (130) is arranged on the output shaft (126); a blade device (140), the blade device (140) being arranged on a side of the output shaft (126) away from the lifting device (130); The lifting device (130) controls the working height of the blade device (140), and the output shaft (126) drives the blade device (140) to operate.

2. The lawn mower gearbox (100) according to claim 1, characterized in that: The lawn mower gearbox (100) further comprises: A power device (150), the power device (150) being arranged on a side of the support device (110) away from the output device (120), the power device (150) comprising a motor (151), an input shaft (152) and a protective cover (153), the input shaft (152) passing through the motor (151), and the motor (151) and the input shaft (152) being arranged on the protective cover (153).

3. The lawn mower gearbox (100) according to claim 2, characterized in that: The lawn mower gearbox (100) further comprises: A transmission gear (160), wherein the transmission gear (160) is disposed in the cavity (123) and meshes with the first gear (124).

4. The lawn mower gearbox (100) according to claim 3, characterized in that: The input shaft (152) comprises: A first end (152a), the first end (152a) being connected to the motor (151); a second end (152b), the second end (152b) passing through the supporting device (110) and connected to the transmission gear (160); The motor (151) drives the input shaft (152), and the input shaft (152) drives the transmission gear (160) to rotate.

5. The lawn mower gearbox (100) according to claim 3, characterized in that: The first gear (124) and the transmission gear (160) are helical gears, and are used to reduce noise in the cavity (123).

6. The lawn mower gearbox (100) according to claim 1, characterized in that: The lifting device (130) comprises: an adjusting screw (131), the adjusting screw (131) being connected to the output shaft (126); A manual adjustment handle (132), wherein the manual adjustment handle (132) is connected to the adjustment screw (131); The position of the adjusting screw rod (131) can be changed by rotating the manual adjusting handle (132), thereby adjusting the height of the blade device (140).

7. The lawn mower gearbox (100) according to claim 2, characterized in that: The protective cover (153) is fixed to the supporting device (110) via a fastener (112).

8. The lawn mower gearbox (100) according to claim 7, characterized in that: The support device (110) further comprises: a second frame (113), the second frame (113) being arranged on a side of the support device (110) away from the first frame (111), and an outer side wall of the second frame (113) being tangent to an outer side wall of the support device (110).

9. The lawn mower gearbox (100) according to claim 1, characterized in that: The blade device (140) is provided with a cutter head (141), and a guide groove (142) is provided on a side of the cutter head (141) away from the output shaft (126), wherein the guide groove (142) prevents grass blades from being retained on the cutter head (141) when the cutter head (141) is working.

10. A lawn mower (200), characterized in that: It comprises a lawn mower gearbox (100) as claimed in any one of claims 1 to 9.

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