Walking driving system of mowing machine and mowing machine

Abstract

The utility model discloses a mowing machine walking driving system and a mowing machine, the mowing machine walking driving system comprises a front wheel and a rear wheel, the front wheel is a universal wheel, and the universal wheel has a degree of freedom of up-down reciprocating motion; according to the walking driving system of the mowing machine and the mowing machine, the structure of the walking driving system is improved, so that the front wheels have the freedom degree of up-down reciprocating motion, and therefore when the front wheels and the rear wheels run on an uneven road surface, compared with the prior art that the wheels are in a suspended state, running is unstable, and the service life of the mowing machine is prolonged. And the wheels are always in contact with the ground, so that the running is stable, and the probability of danger can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of garden tools, in particular to a travel drive system of a lawn mower and the lawn mower. Background Art

[0002] As a tool that plays an important role in agricultural production, a lawn mower has the most direct impact on the yield of crops. It is generally used to trim lawns and vegetation. It is composed of a cutter disc, an engine, running wheels, a running mechanism and a control part. The front axle is a device that transmits the directional forces between the frame and the front wheels and the bending moment and torque generated by them. The front wheels of current lawn mowers are directly mounted on the frame. When driving on uneven roads, the four wheels cannot touch the ground at the same time, affecting the smooth driving of the vehicle.

[0003] Therefore, it is necessary to improve the travel drive system of the lawn mower in the prior art so that the travel wheels of the lawn mower can adapt to uneven roads. When traveling on uneven roads, the four travel wheels can also contact the ground, thereby ensuring that the lawn mower travels smoothly. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a travel drive system for a lawn mower, so that the travel wheels of the lawn mower can adapt to uneven roads. When traveling on uneven roads, the four travel wheels can also contact the ground, thereby ensuring that the lawn mower travels smoothly.

[0005] The travel drive system of the lawn mower of the utility model comprises a front wheel and a rear wheel. The front wheel is a universal wheel having the freedom to move back and forth up and down.

[0006] Furthermore, it also includes a transversely arranged front bridge, and there are two universal wheels respectively arranged at the two ends of the front bridge. The two ends of the front bridge have the freedom to swing up and down relative to the longitudinal center plane of the lawn mower frame, so that the universal wheels have the freedom to move back and forth up and down.

[0007] Furthermore, it also includes a limiting member, which is arranged on both sides of the longitudinal center plane of the frame, and is used to limit the downward swing amplitude of the front bridge.

[0008] Furthermore, it also includes a channel-shaped member, which is arranged below the middle part of the front bridge. The channel-shaped member is provided with a receiving groove that surrounds the front bridge from bottom to top, and the limiting members are arranged at both ends of the channel-shaped member.

[0009] Furthermore, the limiting member is an end plate, and an arc-shaped groove is provided on the end plate, and the bottom of the arc-shaped groove is used to limit the downward swinging amplitude of the front bridge.

[0010] Furthermore, the rear wheels are electrically driven wheels, and there are two of them. Each of the two rear wheels is provided with a drive motor for driving the rear wheels to rotate.

[0011] Furthermore, both ends of the channel-shaped member extend downward to form a flange structure, and a bumper mounting position for mounting a lawn mower bumper is provided on the flange structure.

[0012] Furthermore, a cutter disc mounting position for mounting a lawn mower cutter disc is provided on the lower surface of the groove-shaped member.

[0013] Furthermore, a cover installation position for installing a lawn mower cover is also provided on the groove-shaped member.

[0014] The utility model provides a lawn mower, comprising the aforementioned travel drive system of the lawn mower.

[0015] Furthermore, the lawn mower is a riding lawn mower.

[0016] The beneficial effects of the present invention are as follows: the travel drive system of the lawn mower and the lawn mower of the present invention improve the structure of the travel drive system so that the front wheels have the freedom to move back and forth up and down, so that when the front wheels and the rear wheels travel on uneven roads, compared with the four wheels in the prior art that cannot touch the ground at the same time, resulting in unstable driving, the wheels are always in contact with the ground, thereby making driving smooth and reducing the probability of danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the channel-shaped member;

[0020] Figure 3 for Figure 1 A cross-sectional view of the hinge between the center front bridge and the front cross member;

[0021] The above drawings include the following reference numerals:

[0022] 1. Front wheel; 101. Bracket; 2. Front bridge; 3. Rear wheel; 4. Drive motor; 5. Frame; 501. Front crossbeam; 6. Channel-shaped part; 601. Cutter head mounting position; 602. Cover mounting position; 603. Bumper mounting position; 604. Arc groove; 7. Bolt; 8. Bushing. DETAILED DESCRIPTION

[0023] Figure 1 This is a schematic diagram of the structure of the utility model. Figure 2It is a structural diagram of the channel-shaped part. Figure 3 for Figure 1 A cross-sectional view of the hinge between the center front bridge and the front crossbeam, as shown in Figure 1-3 As shown: the travel drive system of the lawn mower of this embodiment includes a front wheel 1 and a rear wheel 3. The front wheel 1 is a universal wheel, and the universal wheel has the freedom to move back and forth up and down. In this structure, there are at least two front wheels 1 and rear wheels 3 respectively. Relative to the layout orientation of the lawn mower, two front wheels 1 are arranged at the front of the lawn mower, and two rear wheels 3 are arranged at the rear of the lawn mower. The front wheel 1 is a universal wheel, which is convenient for steering. At the same time, the universal wheel has the freedom to move back and forth up and down (up and down is the up and down direction relative to the lawn mower). Therefore, when the lawn mower travels on an uneven road surface, the front wheel 1 can automatically adjust to adapt to the uneven road surface, thereby making the travel smooth.

[0024] In the prior art, in current lawn mowers, the front wheel 1 is directly mounted on the frame 5. When traveling on uneven roads, the four wheels cannot touch the ground at the same time, affecting the smooth driving of the vehicle. The travel drive system of the lawn mower of the present invention improves the structure of the travel drive system so that the front wheel 1 has the freedom to move back and forth up and down, so that when the front wheel 1 and the rear wheel 3 travel on uneven roads, compared with the wheels in the prior art, they will appear in a suspended state, causing danger and unstable driving. The wheels are always in contact with the ground, which makes driving smooth, improves the operating experience, and also reduces the probability of danger.

[0025] In this embodiment, it also includes a transversely arranged front bridge 2, and there are two universal wheels, which are respectively arranged at the two ends of the front bridge 2. The two ends of the front bridge 2 have the freedom to swing up and down relative to the longitudinal center plane of the lawn mower frame 5, so that the universal wheels have the freedom to move back and forth up and down; in this structure, the transverse direction is the left and right direction relative to the lawn mower, and the universal wheels are installed at the two ends of the front bridge 2 through the bracket 101. The connection method between the universal wheels and the front bridge 2 is the application of the existing technology, which is not repeated here. The middle position of the front cross beam 501 of the lawn mower frame 5 is provided with a mounting position for installing the front bridge 2. The front cross beam 501 is a square tubular structure. A fixing hole for fixing the front bridge is provided at the center line of the longitudinal direction of the front cross beam (relative to the front and rear direction of the lawn mower frame). The front bridge 2 is hinged to the front cross beam 501 of the lawn mower frame 5 by bolts 7, so that the two ends of the front bridge 2 have the freedom to swing up and down.

[0026] In this embodiment, a limiting member is also included, which is arranged on both sides of the longitudinal center plane of the frame, and is used to limit the downward swinging amplitude of the front bridge 2; the limiting member is located on both sides of the longitudinal center plane of the frame, so that when the front bridge 2 swings downward, the downward swinging amplitude of the front bridge 2 can be limited.

[0027] In this embodiment, a channel-shaped member 6 is further included, and the channel-shaped member 6 is arranged below the middle part of the front bridge 2. The channel-shaped member 6 is provided with a receiving groove that surrounds the front bridge 2 from bottom to top, and the limiting members are arranged at both ends of the channel-shaped member 6; in this structure, the channel-shaped member is a channel steel structure, the channel-shaped member 6 is fixedly connected to the side wall of the front cross beam 501 of the lawn mower frame 5, and the receiving groove also surrounds the front cross beam 501 from bottom to top, that is, the front bridge 2 is suspended in the receiving groove, and a bushing 8 is provided on the outside of the bolt 7, and the length of the bushing 8 is greater than the width of the front bridge 2. Limiting members are provided at both ends of the channel-shaped member 6 for limiting the downward swing of the front bridge 2. When the front bridge 2 swings downward, the lower surface of the front bridge 2 will contact the limiting member, thereby limiting the downward swing amplitude of the front bridge 2. The limiting member can be an adjustable structure or a fixed block, etc.

[0028] In this embodiment, the limiting member is an end plate, and an arc-shaped groove 604 is provided on the end plate, and the bottom of the arc-shaped groove 604 is used to limit the downward swinging amplitude of the front bridge 2; the limiting member can be an end plate, and the end plate is provided with an arc-shaped groove 604, so that when the front bridge 2 swings downward, the lower surface of the front bridge 2 will contact the bottom of the groove, thereby limiting the downward swinging amplitude of the front bridge 2.

[0029] In this embodiment, the rear wheels 3 are electric drive wheels, and there are two of them. The two rear wheels 3 are respectively provided with a drive motor 4 for driving the rear wheels 3 to rotate; the rear wheels 3 are electric drive wheels, and the rear wheels 3 are driven to rotate by the drive motor 4. The drive motor 4 can be powered by a power supply component (not shown in the figure). By providing two drive motors 4, the overall structure is symmetrically distributed relative to the longitudinal center plane of the lawn mower frame (the longitudinal direction is the front and rear direction of the lawn mower), which is beneficial to improving the overall structural stability of the frame, and at the same time can improve energy utilization during use, which is beneficial to energy saving and environmental protection.

[0030] In this embodiment, both ends of the groove member 6 extend downward to form a flange structure, and a bumper mounting position 603 for installing the lawn mower bumper is provided on the flange structure; both ends of the groove member 6 are provided to extend downward to form a flange structure, and a bumper mounting position 603 is provided at the same time, which is convenient for installing the lawn mower bumper.

[0031] In this embodiment, the lower surface of the groove member 6 is provided with a cutter disc mounting position 601 for mounting a cutter disc of a lawn mower; the cutter disc mounting position 601 is provided on the lower surface of the groove member 6, thereby facilitating the installation of the cutter disc of the lawn mower;

[0032] The groove member 6 is also provided with a cover member installation position 602 for installing a lawn mower cover member. The cover member installation position 602 is provided on the groove member 6 to facilitate the installation of the lawn mower cover member.

[0033] The lawn mower of this embodiment includes the aforementioned travel drive system of the lawn mower; the lawn mower may be a lawn mowing robot, a hand-push lawn mower, a riding lawn mower, and the like.

[0034] In this embodiment, the lawn mower is a riding lawn mower.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A travel drive system for a lawn mower, characterized by: The utility model comprises a front wheel and a rear wheel, wherein the front wheel is a universal wheel having the freedom of reciprocating movement up and down.

2. The travel drive system of the lawn mower according to claim 1, characterized in that: It also includes a transversely arranged front bridge, and there are two universal wheels respectively arranged at the two ends of the front bridge. The two ends of the front bridge have the freedom to swing up and down relative to the longitudinal center plane of the lawn mower frame, so that the universal wheels have the freedom to move back and forth up and down.

3. The travel drive system of the lawn mower according to claim 2, characterized in that: It also includes a limiting member, which is arranged on both sides of the longitudinal center plane of the frame. The limiting member is used to limit the downward swinging amplitude of the front bridge.

4. The travel drive system of the lawn mower according to claim 3, characterized in that: It also includes a channel-shaped member, which is arranged below the middle part of the front bridge. The channel-shaped member is provided with a receiving groove that surrounds the front bridge from bottom to top, and the limiting members are arranged at both ends of the channel-shaped member.

5. The travel drive system of the lawn mower according to claim 4, characterized in that: The limiting member is an end plate, and an arc-shaped groove is provided on the end plate. The bottom of the arc-shaped groove is used to limit the downward swinging amplitude of the front bridge.

6. The travel drive system of the lawn mower according to claim 1, characterized in that: The rear wheels are electrically driven wheels, and there are two of them. Each of the two rear wheels is provided with a drive motor for driving the rear wheels to rotate.

7. The travel drive system of the lawn mower according to claim 4, characterized in that: Both ends of the channel-shaped member extend downward to form a flange structure, and a bumper mounting position for mounting a lawn mower bumper is provided on the flange structure.

8. The travel drive system of the lawn mower according to claim 4, characterized in that: The lower surface of the grooved member is provided with a cutter disc mounting position for mounting a lawn mower cutter disc; The groove-shaped member is also provided with a cover member installation position for installing a lawn mower cover member.

9. A lawn mower, characterized in that: A travel drive system for a lawn mower comprising the method according to any one of claims 1 to 8.

10. The lawn mower according to claim 9, characterized in that: The lawn mower is a riding lawn mower.

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