A floating support roller structure for a tracked remote-controlled lawnmower

By designing a floating support roller structure, the support rollers can adaptively float on complex terrain, solving the problems of uneven force distribution on the support rollers and track detachment in tracked remote-controlled lawnmowers, and improving the energy efficiency and working stability of the lawnmower.

CN224427608UActive Publication Date: 2026-06-30SHANDONG MINGYUAN INTELLIGENT MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG MINGYUAN INTELLIGENT MASCH TECH CO LTD
Filing Date
2025-08-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The track roller structure of traditional tracked remote-controlled lawnmowers is prone to uneven stress and track detachment in complex terrain, affecting the lawnmower's working efficiency and stability.

Method used

A floating track roller structure was designed, including a floating frame and a hollow track roller. The track roller can float up and down within a certain range. The whole structure composed of the floating frame and the track roller adapts to complex terrain, ensuring good contact between the track roller and the track, and reducing weight through the hollow design.

Benefits of technology

It improves the energy efficiency of lawnmowers, reduces operating costs, reduces the risk of track detachment, and enhances the working stability and efficiency of lawnmowers.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a floating support roller structure for a tracked remote-controlled lawnmower, including a vehicle side plate, a tensioning mechanism, and a floating mechanism. The vehicle side plate has three fixed bases (fixed seat 1, fixed seat 2, and fixed seat 3) connected sequentially from front to back at its lower end. A pin is fixedly connected to the rear end of fixed seat 3. Bearings 2 are fixedly fitted at both ends of pin 1, and a bidirectional track wheel is fixedly fitted between the outer rings of the two bearings 2. The tensioning mechanism is located at the front end of fixed seat 1. The floating mechanism includes a floating frame, bearing 1, and support rollers. The floating frame is rotatably connected to the lower middle part of fixed seat 2 via pin 2. This floating support roller structure allows the support rollers to float up and down within a certain range, thus adapting to complex terrain, ensuring good contact between the support rollers and the track, reducing the weight of the support rollers, improving the energy efficiency of the lawnmower, and lowering operating costs.
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Description

Technical Field

[0001] This utility model relates to the field of tracked remote-controlled lawnmower technology, specifically to a floating support wheel structure for a tracked remote-controlled lawnmower. Background Technology

[0002] A lawnmower is a highly efficient agricultural and garden machine used for trimming lawns, weeds, and shrubs. It uses high-speed rotating blades to cut grass, vegetation, or pasture, and is widely used in home gardens, parks, golf courses, and street greening. It significantly improves efficiency and reduces labor costs, making it an indispensable piece of equipment in modern agricultural and forestry management. With the development of agricultural mechanization, tracked remote-controlled lawnmowers are increasingly widely used in grassland maintenance.

[0003] As a key component of the walking mechanism of a tracked remote-controlled lawnmower, the performance of the track roller directly affects the mower's working efficiency and stability. Traditional track roller structures are prone to problems such as uneven stress on the track rollers and track slippage when dealing with complex terrain, affecting the normal operation of the lawnmower. To address this, we propose a floating track roller structure for a tracked remote-controlled lawnmower. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a floating support roller structure for a tracked remote-controlled lawnmower. The support roller can float up and down within a certain range, thereby adapting to complex terrain, ensuring good contact between the support roller and the track, reducing the weight of the support roller, improving the energy utilization efficiency of the lawnmower, and reducing operating costs. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a floating support wheel structure for a tracked remote-controlled lawnmower, comprising a vehicle side plate, a tensioning mechanism, and a floating mechanism;

[0006] Vehicle side panel: its lower end is fixedly connected to a fixed seat 1, a fixed seat 2 and a fixed seat 3 in sequence from front to back. The rear end of the fixed seat 3 is fixedly connected to a pin 1. Both the left and right ends of the pin 1 are fixedly fitted with bearings 2. A two-way track wheel is fixedly fitted between the outer rings of the two bearings 2.

[0007] Tensioning mechanism: It is located at the front end of the fixed base one;

[0008] Floating mechanism: It includes a floating frame, bearing 1, and support rollers. The floating frame is rotatably connected to the lower middle part of the fixed base 2 via a pin 2. The left and right ends of the front and rear sides of the floating frame are fixedly fitted with bearing 1 by support columns. Support rollers are fixedly fitted on the outer ring of bearing 1. The support rollers can float up and down within a certain range, thereby adapting to complex terrain, ensuring good contact between the support rollers and the tracks, reducing the weight of the support rollers, improving the energy efficiency of the lawnmower, and reducing operating costs.

[0009] Furthermore, the floating mechanism also includes cover plates, which are bolted to the ends of the support columns away from the floating frame. Bearings are located inside the integral structure formed by adjacent cover plates and support rollers to prevent the support rollers from falling off.

[0010] Furthermore, the support roller is a hollow roller, which reduces the weight of the support roller.

[0011] Furthermore, the tensioning mechanism includes a tensioning wheel and a pin seat. The tensioning wheel has a through hole in the middle that is rotatably connected to a pin three. Both ends of the pin three are connected to pin seats by bolts. Adjustment grooves are provided on both the left and right sides of the fixed seat one. The pin seats are slidably connected to the outside of the adjacent adjustment grooves to realize the adjustment of the track tension.

[0012] Furthermore, the tensioning mechanism includes studs and adjusting plates. The studs are fixedly connected to the rear side of the pin seat. Adjusting plates are fixedly connected to the middle of the left and right sides of the fixed seat. The rear ends of the studs pass through the synchronous through holes of the adjacent adjusting plates. The rear ends of the studs are threaded with two adjusting nuts. The adjusting plate is located between the two adjusting nuts of the same stud, thereby realizing the position adjustment of the tensioning wheel.

[0013] Furthermore, the rear end of the vehicle side panel is rotatably connected to a drive wheel via a drive shaft. The drive wheel, tension wheel, and bidirectional track wheel are connected by track drive. The support rollers are all configured to cooperate with the track to enable the vehicle to move.

[0014] Furthermore, both the left and right tracks of the bidirectional track wheel are hollow tracks, reducing the weight of the bidirectional track wheel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The floating support roller structure of this tracked remote-controlled lawnmower has the following advantages:

[0016] 1. The floating frame and track rollers can rotate within a certain range in the middle of the fixed base 2, so that the track rollers on the front and rear sides or all the track rollers keep in close contact with the inner side of the track, ensuring good contact between the track rollers and the track and reducing the risk of track detachment.

[0017] 2. The support rollers are hollow, and the track rollers on both sides of the bidirectional track are also hollow, which reduces the overall weight and improves the energy efficiency of the lawnmower. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the floating mechanism of this utility model;

[0020] Figure 3 This is a cross-sectional structural schematic diagram of the floating mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the tensioning wheel of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the bidirectional tracked wheel of this utility model.

[0023] In the diagram: 1. Side panel of vehicle body; 2. Fixed seat one; 3. Fixed seat two; 4. Fixed seat three; 5. Tensioning mechanism; 51. Tensioning wheel; 52. Pin seat; 53. Stud; 54. Adjusting plate; 6. Floating mechanism; 61. Floating frame; 62. Bearing one; 63. Track roller; 64. Cover plate; 7. Two-way track wheel; 8. Bearing two; 9. Drive wheel; 10. Adjustment groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This embodiment provides a technical solution: a floating support wheel structure for a tracked remote-controlled lawnmower, including a vehicle side plate 1, a tensioning mechanism 5 and a floating mechanism 6;

[0026] Side plate 1 of the vehicle body: its lower end is fixedly connected to fixed seat 1 2, fixed seat 2 3 and fixed seat 3 4 from front to back. The rear end of fixed seat 3 4 is fixedly connected to pin 1. Both the left and right ends of pin 1 are fixedly fitted with bearing 2 8. The outer rings of the two bearing 2 8 are fixedly fitted with bidirectional track wheel 7. The track wheels on the left and right sides of the bidirectional track wheel 7 are hollow track wheels. The side plate 1 of the vehicle body is installed on both sides of the tracked remote control lawnmower body. The drive wheels 9 of the drive wheels 9 are fixedly connected to the output shaft of the drive motor inside the tracked remote control lawnmower body. The drive motor drives the drive wheels 9 on the same side to rotate. The drive wheels 9 drive the track to rotate.

[0027] Tensioning mechanism 5: It is located at the front end of fixed seat 2. Tensioning mechanism 5 includes tension wheel 51 and pin seat 52. The middle through hole of tension wheel 51 is rotatably connected to pin 3. The left and right ends of pin 3 are connected to pin seat 52 by bolts. Adjustment grooves 10 are opened on both the left and right sides of fixed seat 2. Pin seat 52 is slidably connected to the outside of adjacent adjustment grooves 10. Tensioning mechanism 5 includes stud 53 and adjustment plate 54. Stud 53 is fixedly connected to the rear side of pin seat 52. Adjustment plate 54 is fixedly connected to the middle of both the left and right sides of fixed seat 2. The rear end of stud 53 passes through the synchronous through hole of adjacent adjustment plate 54. The rear end of stud 53 is threaded with two adjustment nuts. Adjustment plate 54 is located between the two adjustment nuts of the same stud 53. During debugging, the distance of stud 53 passing through adjustment plate 54 is adjusted by the two fixed nuts to adjust the position of tension wheel 51 and realize the adjustment of track tension.

[0028] Floating mechanism 6 includes a floating frame 61, bearing 62, and support rollers 63. The floating frame 61 is rotatably connected to the lower middle part of the fixed base 3 via a pin. Bearings 62 are fixedly mounted on both the front and rear sides of the floating frame 61 via support columns. Support rollers 63 are fixedly mounted on the outer rings of the bearings 62. The floating mechanism 6 also includes cover plates 64, which are bolted to the ends of the support columns away from the floating frame 61. Bearings 62 are located inside the integral structure formed by adjacent cover plates 64 and support rollers 63. Support rollers 63 are hollow wheels. A drive wheel 9 is rotatably connected to the rear end of the vehicle side panel 1 via a drive shaft. The drive wheel 9, tension wheel 51, and bidirectional track wheel 7 are connected by track drive. The support rollers 63 are all set to cooperate with the track. When encountering complex ground, the raised ground lifts up the track, and the middle of the track deforms. The whole assembly of the floating frame 61 and the support rollers 63 can rotate. The two or four support rollers 63 on the same side in front of the support rollers 63 always keep close to the inner side of the track, ensuring good contact between the support rollers and the track and reducing the risk of the track falling off. At the same time, the support rollers 63 are hollow wheels, and the track wheels on both sides of the bidirectional track wheel 7 are also hollow track wheels, which reduces the overall weight and improves the energy utilization efficiency of the lawnmower.

[0029] The working principle of the floating support roller structure of the tracked remote-controlled lawnmower provided by this utility model is as follows: Side plates 1 are respectively installed on both sides of the tracked remote-controlled lawnmower body. The drive wheels 9 are respectively fixedly connected to the output shaft of the drive motor inside the tracked remote-controlled lawnmower body. The drive motor drives the drive wheels 9 on the same side to rotate, and the drive wheels 9 drive the track to rotate, realizing the movement of the tracked remote-controlled lawnmower. During debugging, the distance of the adjusting studs 53 passing through the adjusting plate 54 is adjusted by using two fixing nuts to adjust the position of the tension wheel 51. The track tension adjustment allows the track to be adjusted so that when encountering complex terrain, the raised ground lifts the track, causing deformation in the middle of the track. The entire assembly consisting of the floating frame 61 and the support rollers 63 can rotate. The two or four support rollers 63 on the same side in front of the support rollers 63 always remain in close contact with the inner side of the track, ensuring good contact between the support rollers and the track and reducing the risk of the track falling off. At the same time, the support rollers 63 are hollow rollers, and the track rollers on both sides of the bidirectional track rollers 7 are also hollow track rollers, which reduces the overall weight and improves the energy efficiency of the lawnmower.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A floating track roller structure for a remote controlled track mower, characterised in that: It includes a body side panel (1), a tensioning mechanism (5), and a floating mechanism (6); Vehicle side panel (1): its lower end is fixedly connected to a first fixed seat (2), a second fixed seat (3) and a third fixed seat (4) from front to back. The rear end of the third fixed seat (4) is fixedly connected to a first pin. The left and right ends of the first pin are fixedly fitted with second bearings (8). The outer rings of the two second bearings (8) are fixedly fitted with a two-way track wheel (7). Tensioning mechanism (5): It is located at the front end of fixed base one (2); Floating mechanism (6): It includes a floating frame (61), a bearing (62) and a support wheel (63). The floating frame (61) is rotatably connected to the lower middle part of the fixed seat (3) by a pin. The left and right ends of the front and rear sides of the floating frame (61) are fixedly fitted with bearings (62) by support columns. The outer ring of the bearings (62) is fixedly fitted with support wheels (63).

2. The floating support roller structure of a tracked remote-controlled lawnmower according to claim 1, characterized in that: The floating mechanism (6) also includes a cover plate (64), which is bolted to the end of the support column away from the floating frame (61). The bearing (62) is located inside the integral structure formed by the adjacent cover plate (64) and the support roller (63).

3. The floating support roller structure of a tracked remote-controlled lawnmower according to claim 1, characterized in that: The support roller (63) is a hollow roller.

4. The floating support roller structure of a tracked remote-controlled lawnmower according to claim 1, characterized in that: The tensioning mechanism (5) includes a tensioning wheel (51) and a pin seat (52). The tensioning wheel (51) has a through hole in the middle that is rotatably connected to a pin three. The left and right ends of the pin three are connected to pin seats (52) by bolts. The left and right sides of the fixed seat (2) are provided with adjustment grooves (10). The pin seats (52) are slidably connected to the outside of the adjacent adjustment grooves (10).

5. The floating support roller structure of a tracked remote-controlled lawnmower according to claim 4, characterized in that: The tensioning mechanism (5) includes studs (53) and adjusting plates (54). The studs (53) are fixedly connected to the rear side of the pin seat (52). Adjusting plates (54) are fixedly connected to the middle of the left and right sides of the fixing seat (2). The rear end of the studs (53) passes through the synchronous through holes of the adjacent adjusting plates (54). The rear end of each stud (53) is threaded with two adjusting nuts. The adjusting plate (54) is located between the two adjusting nuts of the same stud (53).

6. The floating support roller structure of a tracked remote-controlled lawnmower according to claim 4, characterized in that: The rear end of the vehicle side panel (1) is rotatably connected to a drive wheel (9) via a drive shaft. The drive wheel (9), tension wheel (51) and bidirectional track wheel (7) are connected by track drive. The support roller (63) is configured to cooperate with the track.

7. The floating support roller structure of a tracked remote-controlled lawnmower according to claim 1, characterized in that: The two-way track wheel (7) has hollow track wheels on both the left and right sides.