Weeding machine gearbox with differential mechanism

Abstract

The weeding machine gearbox comprises a shell, an input shaft is rotationally connected to the center of the shell, a first transmission shaft located on one side of the input shaft is rotationally connected to the center of the shell, and a second transmission shaft located below the first transmission shaft is rotationally connected to the center of the shell. The center of the shell is rotationally connected with a third transmission shaft located on one side of the second transmission shaft, and the center of the shell is rotationally connected with an output shaft located below the third transmission shaft. The gear shifting shaft moves to drive the gears installed on the input shaft to move, then different meshing combinations are achieved, gear replacement is completed, the first transmission shaft gear A drives the third transmission shaft gear A and the third transmission shaft gear B, the output shaft outputs power, then different meshing combinations are achieved, and gear replacement is completed. Meanwhile, the differential mechanism and the differential lock are additionally arranged, so that the weeding machine has better operability and flexibility.

Description

Technical Field

[0001] The utility model relates to the field of weeders, in particular to a weeder gearbox with a differential. Background Art

[0002] A lawn mower is a common gardening tool used to remove weeds from lawns, flower beds and other planting areas. It can reduce the labor intensity of manual weeding and improve efficiency. A lawn mower is usually driven by an electric or gasoline engine with a rotating blade or wire wheel that cuts weeds by rotating rapidly. A small gearbox is required for gear adjustment when driving the lawn mower.

[0003] When the current lawn mower is in use, since the left and right wheels rotate at the same speed, but the wheels cannot rotate at the same speed when traveling in a curve, it is difficult to achieve the difference in rotation speed when traveling in a curve, resulting in the lawn mower being not flexible enough when turning, not being easy to adapt to changeable and complex terrain, and being unable to flexibly realize the turning of the lawn mower. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing weed cutters are not flexible enough in turning operation.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: providing a lawn mower gearbox with a differential, including a shell, the center of the shell is rotatably connected to an input shaft, the center of the shell is rotatably connected to a first transmission shaft located on one side of the input shaft, the center of the shell is rotatably connected to a second transmission shaft located below the first transmission shaft, the center of the shell is rotatably connected to a third transmission shaft located on one side of the second transmission shaft, the center of the shell is rotatably connected to an output shaft located below the third transmission shaft, the center top of the shell is connected to a shift shaft, and the center top of the shell is connected to a clutch shaft located on one side of the shift shaft.

[0006] The utility model is further configured that an input shaft gear A and an input shaft gear B are mounted on the outer surface of the input shaft.

[0007] The utility model is further configured such that a first transmission shaft gear A and a first transmission shaft gear B are installed at one end of the outer surface of the first rotating shaft, a first transmission shaft gear C and a clutch claw are installed at the other end of the outer surface of the first rotating shaft, the first transmission shaft gear B is transmission connected to the input shaft gear A, and the input shaft gear B is transmission connected to the first transmission shaft gear C.

[0008] The utility model is further configured such that a second transmission shaft gear A and a second transmission shaft gear B are rollingly mounted on one end of the outer surface of the second transmission shaft, and the input shaft gear B is transmission-connected with the second transmission shaft gear B.

[0009] The utility model is further configured such that a third transmission shaft gear A is installed at one end of the outer surface of the third transmission shaft, a third transmission shaft gear B is installed at the middle position of the outer surface of the third transmission shaft, and the first transmission shaft gear A is transmission-connected with the third transmission shaft gear A and the third transmission shaft gear B.

[0010] The utility model is further configured that a differential assembly and a differential lock combined gear are installed on the outer surface of the output shaft, the differential lock combined gear is composed of a differential fork and a gear, and the third transmission shaft gear B is connected to the differential assembly housing through a gear transmission connection.

[0011] The utility model is further configured that a shift fork is installed on the outer surface of the shift shaft.

[0012] The utility model is further configured that a clutch fork is installed on the outer surface of the clutch shaft, and the clutch fork is connected to the clutch claw.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model drives the shift fork through the shift shaft, and drives the input shaft gear A and the first transmission shaft gear B to mesh, or the input shaft gear B and the first transmission shaft gear C to mesh, or the input shaft B and the second transmission shaft gear B to mesh, the second transmission shaft gear B is fixedly connected with the second transmission shaft gear A, and the second transmission shaft gear A meshes with the first transmission shaft gear C to achieve three gears. The first transmission shaft gear A then drives the third transmission shaft gear A and the third transmission shaft gear B, and the output shaft outputs power, thereby achieving different meshing combinations, completing the gear change, and adding a differential and a differential lock, so that the lawn mower has better operability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the transmission mechanism structure of the utility model;

[0017] Figure 3 This is a front view of the transmission mechanism structure of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the connection relationship of the parts arranged on the clutch shaft and the first transmission shaft.

[0019] In the figure: 1. input shaft; 11. input shaft gear A; 12. input shaft gear B; 2. first transmission shaft; 21. first transmission shaft gear A; 22. first transmission shaft gear B; 23. first transmission shaft gear C; 24. clutch claw; 3. second transmission shaft; 31. second transmission shaft gear A; 32. second transmission shaft gear B; 4. third transmission shaft; 41. third transmission shaft gear A; 42. third transmission shaft gear B; 5. output shaft; 51. differential assembly; 52. differential lock engaging gear; 6. shift shaft; 61. shift fork; 7. clutch shaft; 71. clutch fork; 8. differential fork; 9. housing. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0021] See also Figures 1 to 4 A lawn mower gearbox with a differential includes a shell 9, an input shaft 1 is rotatably connected to the center of the shell 9, a first transmission shaft 2 located at one side of the input shaft 1 is rotatably connected to the center of the shell 9, a second transmission shaft 3 located below the first transmission shaft 2 is rotatably connected to the center of the shell 9, a third transmission shaft 4 located at one side of the second transmission shaft 3 is rotatably connected to the center of the shell 9, an output shaft 5 located below the third transmission shaft 4 is rotatably connected to the center top of the shell 9, and a clutch shaft 7 located at one side of the shift shaft 6 is connected to the center top of the shell 9.

[0022] like Figure 2 As shown, the input shaft gear A11 and the input shaft gear B12 are installed on the outer surface of the input shaft 1. The input shaft 1 is transmission-connected with the power mechanism in the lawn mower, and the power is inputted by the input shaft 1.

[0023] like Figure 2 As shown, the first transmission shaft gear A21 and the first transmission shaft gear B22 are installed at one end of the outer surface of the first rotating shaft 2, and the first transmission shaft gear C23 and the clutch claw 24 are installed at the other end of the outer surface of the first rotating shaft 2. The clutch claw 24 and the first transmission shaft gear C23 are driven to separate or combine through the clutch shaft 7 and the clutch fork 71, so as to control the first rotating shaft 2 to be in a rotating or stationary state. The first transmission shaft gear B22 is transmission-connected with the input shaft gear A11, and the input shaft gear B12 is transmission-connected with the first transmission shaft gear C23. Since the power is input by the input shaft 1, combined with the shift fork 61 set on the shift shaft 6, the switching of the two gears is realized by switching the input shaft gear A11 to be transmission-connected with the first transmission shaft gear B22, or the input shaft gear B12 to be transmission-connected with the first transmission shaft gear C23.

[0024] like Figure 2 As shown, one end of the outer surface of the second transmission shaft 3 is rollingly mounted with the second transmission shaft gear A31 and the second transmission shaft gear B32, and the input shaft gear B12 is transmission-connected with the second transmission shaft gear B32. Combined with the above, through the action of the shift fork 61, the input shaft gear B12 is switched to engage with the second transmission shaft gear B32, and the second transmission shaft gear B32 is installed on the second transmission shaft 3 with the second transmission shaft gear A31. Combined with the transmission connection between the second transmission shaft gear A31 and the first transmission shaft gear C23, the switching of the third gear is realized.

[0025] like Figure 2 As shown, a third transmission shaft gear A41 is installed at one end of the outer surface of the third transmission shaft 4, a third transmission shaft gear B42 is installed at the middle position of the outer surface of the third transmission shaft 4, and the first transmission shaft gear A21 is transmission-connected with the third transmission shaft gear A41 and the third transmission shaft gear B42. Combined with the above, since there is a transmission connection relationship between the first transmission shaft gear A21 and the third transmission shaft gear A41 and the third transmission shaft gear B42, the third transmission shaft 4 can achieve output at different speeds after switching different gears.

[0026] like Figure 2 As shown, the outer surface of the output shaft 5 is installed with a differential assembly 51 and a differential lock combined gear 52. The differential lock combined gear 52 is composed of a differential fork 8 and a gear. The use of the differential lock combined gear 52 realizes differential or non-differential output by engaging or disengaging with the differential assembly 51, and the addition of a differential and a differential lock makes the lawn mower have better operability and flexibility. The third transmission shaft gear B42 is connected to the outer surface of the differential assembly 51 by a gear transmission. Due to the connection relationship between the third transmission shaft gear B42 and the differential assembly 51, power is input from the input shaft 1, and after switching through multiple gears, power is output by the output shaft 5.

[0027] like Figure 2 As shown, a shift fork 61 is installed on the outer surface of the shift shaft 6, and the shift fork 61 is placed between the input shaft gear A11 and the input shaft gear B12. Since the input shaft gear A11 and the input shaft gear B12 are fixedly installed on the input shaft 1, the input shaft gear A11 or the input shaft gear B12 is moved by the shift fork 61, so as to switch the input shaft gear A11 and the input shaft gear B12 to mesh with different gears for transmission, thereby achieving the purpose of shifting.

[0028] like Figure 4 As shown, a clutch fork 71 is installed on the outer surface of the clutch shaft 7. The clutch fork 71 is connected to the clutch claw 24. The clutch fork 71 is used to separate or combine the clutch claw 24 and the first transmission shaft gear C23.

[0029] When the utility model is in use, power is input from the input shaft 1, and the shift fork 61 is driven by the shift shaft 6 to respectively drive the input shaft gear A11 to mesh with the first transmission shaft gear B22 or the input shaft gear B12 to mesh with the first transmission shaft gear C23, or the input shaft gear B12 to mesh with the second transmission shaft gear B32, the second transmission shaft gear B32 is fixedly connected with the second transmission shaft gear A31, and the second transmission shaft gear A31 is meshed with the first transmission shaft gear C23 to achieve three gears. Then the first transmission shaft gear A21 drives the third transmission shaft gear A41 and the third transmission shaft gear B42, and the power is output by the output shaft 5. The clutch shaft 7 and the clutch fork 71 drive the clutch claw 24 to separate and combine with the first transmission shaft gear C23, which can control the first transmission shaft 2 to be in a rotating or stationary state, and realize the differential or non-differential output of the output shaft 5 by combining or separating with the differential assembly 51.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lawn mower gearbox with a differential, comprising a housing (9), Features: The center of the housing (9) is rotatably connected to an input shaft (1), the center of the housing (9) is rotatably connected to a first transmission shaft (2) located on one side of the input shaft (1), the center of the housing (9) is rotatably connected to a second transmission shaft (3) located below the first transmission shaft (2), the center of the housing (9) is rotatably connected to a third transmission shaft (4) located on one side of the second transmission shaft (3), the center of the housing (9) is rotatably connected to an output shaft (5) located below the third transmission shaft (4), the center top of the housing (9) is connected to a shift shaft (6), and the center top of the housing (9) is connected to a clutch shaft (7) located on one side of the shift shaft (6).

2. A lawn mower gearbox with a differential according to claim 1, Features: An input shaft gear A (11) and an input shaft gear B (12) are mounted on the outer surface of the input shaft (1).

3. A lawn mower gearbox with a differential according to claim 2, Features: A first transmission shaft gear A (21) and a first transmission shaft gear B (22) are mounted on one end of the outer surface of the first transmission shaft (2), a first transmission shaft gear C (23) and a clutch claw (24) are mounted on the other end of the outer surface of the first transmission shaft (2), the first transmission shaft gear B (22) is transmission-connected to the input shaft gear A (11), and the input shaft gear B (12) is transmission-connected to the first transmission shaft gear C (23).

4. A lawn mower gearbox with a differential according to claim 3, Features: A second transmission shaft gear A (31) and a second transmission shaft gear B (32) are rollingly mounted on one end of the outer surface of the second transmission shaft (3), and the input shaft gear B (12) is transmission-connected to the second transmission shaft gear B (32).

5. A lawn mower gearbox with a differential according to claim 4, Features: A third transmission shaft gear A (41) is installed at one end of the outer surface of the third transmission shaft (4), and a third transmission shaft gear B (42) is installed at the middle position of the outer surface of the third transmission shaft (4). The first transmission shaft gear A (21) is transmission-connected with the third transmission shaft gear A (41) and the third transmission shaft gear B (42).

6. A lawn mower gearbox with a differential according to claim 5, Features: The outer surface of the output shaft (5) is mounted with a differential assembly (51) and a differential lock combined gear (52); the differential lock combined gear (52) is composed of a differential fork (8) and a gear combination; the third transmission shaft gear B (42) is gear-connected to the housing of the differential assembly (51) through transmission.

7. A lawn mower gearbox with a differential according to claim 6, Features: A shift fork (61) is mounted on the outer surface of the shift shaft (6).

8. A lawn mower gearbox with a differential according to claim 7, Features: A clutch fork (71) is installed on the outer surface of the clutch shaft (7), and the clutch fork (71) is connected to the clutch claw (24).

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