Crawler-type brush chipper

Abstract

The utility model provides a caterpillar type branch crusher relates to branch equipment field, this caterpillar type branch crusher includes machine body, caterpillar on machine body, bottom disc, caterpillar wheel, support wheel, swing bar and elastic damping component, caterpillar wheel rotation is connected on the bottom disc, and caterpillar is around all caterpillar wheel and support wheel, swing bar is connected on the bottom disc through the pivot, and the lower end of swing bar is articulated with support wheel, and the other end of swing bar is articulated with the telescopic end of swing bar, and the fixed end of elastic damping component is connected with the bottom disc, when support wheel is with ground fluctuation, swing bar can rotate around pivot and stretch or compress elastic damping component. The cooperation structure of swing bar and elastic damping component, carry out elastic connection with support wheel and bottom disc, can effectively absorb and buffer the impact and vibration from complex ground, reduce the vibration amplitude that transmits to bottom disc and machine body, protect the frame and other key structural members, avoid the fatigue damage caused by stress concentration, thereby prolong the service life of the whole machine significantly.

Description

Technical Field

[0001] This utility model relates to the field of wood chipping equipment technology, and in particular to a tracked wood chipper. Background Technology

[0002] A branch shredder (also known as a wood chipper) is a specialized piece of equipment used to process waste from landscaping and forestry pruning. It achieves resource recycling by shredding plant materials such as branches, leaves, and trunks. During the cutting process, a high-speed rotating cutter disc (equipped with blades) applies cutting, impact, and shearing forces to the material, resulting in highly efficient shredding.

[0003] Existing wood chippers typically use at least two wheels for movement, and some are equipped with one or more auxiliary wheels.

[0004] The applicant has discovered at least the following technical problems in the prior art: existing wheeled wood chippers are difficult to adapt to complex terrain, large sites or working environments that require frequent movement, and have poor shock absorption performance. When used for a long time in complex terrain, structural components such as the frame will crack or even break at stress concentration points, resulting in a short service life. Utility Model Content

[0005] The purpose of this utility model is to provide a tracked wood chipper to solve the technical problems of existing wheeled wood chippers being unable to adapt to complex terrain and having poor shock absorption performance. The various technical effects of the preferred technical solutions provided by this utility model are described in detail below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The tracked wood chipper provided by this utility model includes a machine body, a track, a chassis, track wheels, support wheels, a swing arm, and an elastic shock absorption assembly located on the machine body, wherein:

[0008] The track wheels are rotatably connected to the chassis, and the track is wound around all the track wheels and the support wheels;

[0009] The swing arm is rotatably connected to the chassis via a pivot. The lower end of the swing arm is hinged to the support wheel, and the other end of the swing arm is hinged to the telescopic end of the swing arm. The fixed end of the elastic damping component is connected to the chassis. When the support wheel undulates with the ground, the swing arm can rotate around the pivot and stretch or compress the elastic damping component.

[0010] Preferably, the rocker arm includes an integrally formed mounting plate, a first rocker arm, and a second rocker arm, wherein:

[0011] The mounting plate is located between the first swing arm and the second swing arm, and there is a non-zero included angle between the first swing arm and the second swing arm;

[0012] The mounting plate is provided with a central shaft hole, the rotating shaft passes through the central shaft hole, the end of the first swing arm away from the mounting plate is connected to the telescopic end of the elastic damping component, and the end of the second swing arm away from the mounting plate is hinged to the support wheel.

[0013] Preferably, the mounting plate is provided with an arc-shaped limiting hole, the center of which is co-centered with the central shaft hole;

[0014] The chassis includes a suspension beam, on which a positioning pin is fixed, and the positioning pin passes through the arc-shaped limiting hole.

[0015] Preferably, all the swing arms are arranged at intervals along the same horizontal line.

[0016] Preferably, the suspension beam is horizontally arranged, all the swing arms are rotatably connected to the suspension beam, and the swing arms are arranged at intervals along the length of the suspension beam.

[0017] Preferably, the elastic damping assembly includes a mounting rod and a spring, wherein:

[0018] The mounting rod is fixed to the chassis, the spring is sleeved on the mounting rod, and a connecting block is fixed to the telescopic end of the spring. The connecting block is hinged to the end of the swing rod.

[0019] Preferably, the machine body is provided with a drive mechanism, the track wheels are supported on the inner ends of the track, at least one of the track wheels is a drive wheel, and the drive mechanism is connected to the track wheel for driving the drive wheel to rotate.

[0020] Preferably, the machine body is provided with a feed hopper, a cutter head housing, and a discharge hopper, wherein: the feed hopper, the cutter head housing, and the discharge hopper are connected in sequence, the cutter head in the cutter head housing is used to cut the material entering the discharge hopper, and the feed hopper and the discharge hopper are respectively located on the front and rear sides of the machine body.

[0021] Preferably, the diameter of the feed hopper gradually decreases along the feeding direction.

[0022] Preferably, a structural reinforcing rod is fixed at the feed inlet of the feed hopper.

[0023] The tracked wood chipper provided by this utility model has the following advantages compared with the prior art: The cooperative structure composed of the swing arm and elastic shock-absorbing components elastically connects the support wheel to the chassis, which can effectively absorb and buffer the impact and vibration from complex terrain, significantly reducing the vibration amplitude transmitted to the chassis and body, protecting key structural components such as the frame, and avoiding fatigue damage caused by stress concentration, thereby significantly extending the service life of the entire machine. The combination of the large ground contact area advantage of the track structure and the shock absorption capacity of the suspension system makes the wood chipper not only highly passable when passing through obstacles such as tree roots and ditches, but also more stable in body posture, improving driving stability and operational safety in complex terrain. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of a tracked wood chipper;

[0026] Figure 2 This is a structural schematic diagram of a tracked wood chipper from the bottom view;

[0027] Figure 3 This is a structural diagram of one side of the chassis;

[0028] Figure 4 This is a schematic diagram of the working structure of the support wheel, swing arm, and elastic damping components.

[0029] In the diagram: 1. Body; 2. Track; 3. Chassis; 31. Suspension beam; 4. Track wheel; 5. Support wheel; 6. Swing arm; 61. Mounting plate; 62. First swing arm; 63. Second swing arm; 64. Central shaft hole; 65. Arc-shaped limiting hole; 7. Elastic shock absorption assembly; 71. Mounting rod; 72. Spring; 73. Connecting block; 8. Positioning pin; 9. Feed hopper; 10. Cutter head housing; 11. Discharge hopper; 12. Motor; 13. Structural reinforcing rod. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] This utility model provides a tracked wood chipper with a cooperative structure consisting of a swing arm and an elastic shock-absorbing component, which elastically connects the support wheel to the chassis, effectively absorbing and buffering the impact and vibration from complex terrain.

[0034] The following is combined Figures 1-4 The technical solution provided by this utility model will be described in more detail.

[0035] See Figures 1-4 As shown, the tracked shredder provided by this utility model includes a body 1, a track 2, a chassis 3, track wheels 4, support wheels 5, a swing arm 6, and an elastic shock-absorbing component 7 located on the body 1. The track wheels 4 are rotatably connected to the chassis 3, and the track 2 is wound around all the track wheels 4 and support wheels 5. The swing arm 6 is rotatably connected to the chassis 3 via a rotating shaft. The lower end of the swing arm 6 is hinged to the support wheel 5, and the other end of the swing arm 6 is hinged to its telescopic end. The fixed end of the elastic shock-absorbing component 7 is connected to the chassis 3. When the support wheel 5 undulates with the ground, the swing arm 6 can rotate around the rotating shaft and stretch or compress the elastic shock-absorbing component 7.

[0036] In this embodiment, the tracked wood chipper features a cooperative structure consisting of the swing arm 6 and the elastic shock-absorbing assembly 7, which elastically connects the support wheel 5 to the chassis 3. This effectively absorbs and buffers impacts and vibrations from complex terrain, significantly reducing the vibration amplitude transmitted to the chassis 3 and the machine body 1. This protects critical structural components such as the frame, avoids fatigue damage caused by stress concentration, and thus significantly extends the overall service life of the machine. The large ground contact area of ​​the track 2 structure combined with the shock absorption capability of the suspension system makes the wood chipper not only highly maneuverable when passing through obstacles such as tree roots and ditches, but also more stable in its body posture, improving driving stability and operational safety in complex terrain.

[0037] As an optional implementation, see Figure 1 As shown, the machine body 1 is equipped with a feed hopper 9, a cutter head housing 10, and a discharge hopper 11, wherein the feed hopper 9, the cutter head housing 10, and the discharge hopper 11 are connected in sequence. The cutter head inside the cutter head housing 10 is used to cut the material entering the discharge hopper 11. The feed hopper 9 and the discharge hopper 11 are located on the front and rear sides of the machine body 1, respectively. The diameter of the feed hopper 9 gradually decreases along the feeding direction.

[0038] See Figure 1 The feed hopper 9 has a wide opening, facilitating the operator to feed the material to be crushed. The material enters the cutter head housing 10 from the feed hopper 9. Inside the housing is a high-speed rotating cutter head (not shown separately in the figure) driven by a shredding drive mechanism. The blades on the cutter head cut and crush the material into fragments. The crushed fragments are then ejected through the discharge port under centrifugal force, thus completing the entire shredding process. The cutter head structure is a mature technology for shredders; for example, the cutter head structure and shredder with the existing technology authorized by publication number CN215843404U can be used, and will not be elaborated upon here.

[0039] See Figure 1 A structural reinforcing rod 13 is fixed at the feed inlet of the feed hopper 9, which improves the structural strength.

[0040] As an optional implementation, see Figure 1 and Figure 2 As shown, a drive mechanism is installed on the machine body 1. Track wheels 4 are supported on both ends of the inner side of the track 2, and at least one track wheel 4 is the drive wheel. The drive mechanism is connected to the track wheel 4 for transmission and is used to drive the drive wheel to rotate. The drive mechanism can be an electric motor 12 or a hydraulic motor. The drive mechanism drives the drive wheel to rotate through a transmission device such as a chain or gearbox to drive the entire machine forward, backward, and steer. The shredder drive mechanism (e.g., another independent internal combustion engine or electric motor) drives the cutter head to rotate at high speed through a pulley or coupling, which will not be described in detail here.

[0041] The detailed structure of the rocker arm 6 is explained below:

[0042] See Figure 3 and Figure 4 As shown, the rocker arm 6 includes an integrally formed mounting plate 61, a first rocker arm 62, and a second rocker arm 63, wherein: the mounting plate 61 is located between the first rocker arm 62 and the second rocker arm 63, and there is a non-zero included angle between the first rocker arm 62 and the second rocker arm 63; the mounting plate 61 is provided with a central shaft hole 64, and the rotating shaft passes through the central shaft hole 64; the end of the first rocker arm 62 facing away from the mounting plate 61 is connected to the telescopic end of the elastic damping component 7, and the end of the second rocker arm 63 facing away from the mounting plate 61 is hinged to the support wheel 5.

[0043] The pivot passes through the central shaft hole 64, and a wear-resistant bushing or rolling bearing can be installed between them, thus forming a pivot structure that allows the rocker arm 6 to swing freely around the pivot. The end of the second rocker arm 63 is connected to the axle or bearing seat of the corresponding support wheel 5 via a pin or ball joint hinge, forming another pivot structure. This connection method allows the support wheel 5 to accurately transmit displacement to the rocker arm 6 when it bounces up and down.

[0044] To prevent system damage or component interference due to excessive swing amplitude of the swing arm 6 under severe impact, this embodiment also includes a limiting structure. As an optional implementation, see [link to implementation details]. Figure 3 and Figure 4 As shown, the mounting plate 61 is provided with an arc-shaped limiting hole 65, the center of which is co-centered with the central shaft hole 64; the chassis 3 includes a suspension beam 31, on which a positioning pin 8 is fixed, and the positioning pin 8 passes through the arc-shaped limiting hole 65.

[0045] A positioning pin 8 is fixedly installed on the chassis 3 at the position corresponding to the arc-shaped limiting hole 65. The positioning pin 8 passes through the arc-shaped limiting hole 65. Within the normal operating range, when the rocker arm 6 swings, the positioning pin 8 moves relative to the corresponding arc-shaped limiting hole 65. When the rotation angle of the rocker arm 6 reaches the preset upper or lower limit, the positioning pin 8 will collide with the two end faces of the arc-shaped limiting hole 65, thereby rigidly limiting the continued rotation of the rocker arm 6 and protecting the entire suspension system.

[0046] As an optional implementation, all the swing arms 6 are arranged at intervals along the same horizontal line, thereby improving the stability of the overall structure.

[0047] As an optional implementation, see Figure 3 As shown, the suspension beam 31 is horizontally set, and all the swing arms 6 are rotatably connected to the suspension beam 31. The swing arms 6 are arranged at intervals along the length of the suspension beam 31.

[0048] The above structure facilitates the rotational connection of all the swing arms 6 on the chassis 3, thus improving the stability of the structure.

[0049] As an optional implementation, see Figure 3 and Figure 4 As shown, the elastic damping component 7 includes a mounting rod 71 and a spring 72, wherein: the mounting rod 71 is fixed on the chassis 3, the spring 72 is sleeved on the mounting rod 71, and the telescopic end of the spring 72 is fixed with a connecting block 73, which is hinged to the end of the swing rod 6.

[0050] When the swing arm 6 swings, the end of the first swing arm 62 will move along a circular arc trajectory, thereby pushing or pulling the connecting block 73, causing the spring 72 to be compressed or stretched.

[0051] When the wood chipper is traveling on a flat road, the support wheel 5 is at the reference height, and the swing arm 6 is in a balanced position under the combined action of its own weight, the weight of the machine body 1, and the preload of the spring 72. At this time, the elastic damping assembly can be in a slightly pre-compressed state to eliminate gaps and provide initial support force.

[0052] When track 2 passes over a ground obstacle, the corresponding support wheel 5 is forced to rise rapidly. This movement is transmitted to the second swing arm 63, which in turn drives the entire swing arm 6 to rotate around its axis. As the swing arm 6 rotates, the first swing arm 62 moves accordingly, pushing the connecting block 73 to compress the coil spring 72. During compression, the spring 72 converts the impact kinetic energy from the ground into its own elastic potential energy, which is then slowly released, thus significantly weakening the impact peak and preventing the impact force from being directly and rigidly transmitted to the chassis 3 and the body 1. Conversely, when the support wheel 5 falls into the depression after passing over the obstacle, the swing arm 6 swings in the opposite direction, and the coil spring 72 extends, also providing a cushioning effect. The entire process achieves effective shock absorption protection for the body 1, which not only significantly improves the smoothness of driving and the comfort of operation, but more importantly, avoids structural fatigue damage caused by long-term vibration, thereby greatly extending the service life of the entire machine.

[0053] The specific features, structures, or characteristics described in this specification may be combined in any suitable manner in one or more embodiments or examples.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tracked wood chipper, characterized in that, Includes a body, tracks, chassis, track wheels, support wheels, swing arms, and elastic shock-absorbing components located on the body, wherein: The track wheels are rotatably connected to the chassis, and the track is wound around all the track wheels and the support wheels; The swing arm is rotatably connected to the chassis via a pivot. The lower end of the swing arm is hinged to the support wheel, and the other end of the swing arm is hinged to the telescopic end of the swing arm. The fixed end of the elastic damping component is connected to the chassis. When the support wheel undulates with the ground, the swing arm can rotate around the pivot and stretch or compress the elastic damping component.

2. The tracked wood chipper according to claim 1, characterized in that, The rocker arm includes an integrally formed mounting plate, a first rocker arm, and a second rocker arm, wherein: The mounting plate is located between the first swing arm and the second swing arm, and there is a non-zero included angle between the first swing arm and the second swing arm; The mounting plate is provided with a central shaft hole, the rotating shaft passes through the central shaft hole, the end of the first swing arm away from the mounting plate is connected to the telescopic end of the elastic damping component, and the end of the second swing arm away from the mounting plate is hinged to the support wheel.

3. The tracked wood chipper according to claim 2, characterized in that, The mounting plate is provided with an arc-shaped limiting hole, the center of which is co-centered with the central shaft hole; The chassis includes a suspension beam, on which a positioning pin is fixed, and the positioning pin passes through the arc-shaped limiting hole.

4. The tracked wood chipper according to claim 3, characterized in that, All the aforementioned pendulum arms are arranged at intervals along the same horizontal line.

5. The tracked wood chipper according to claim 3, characterized in that, The suspension beam is horizontally arranged, and all the swing arms are rotatably connected to the suspension beam. The swing arms are arranged at intervals along the length of the suspension beam.

6. The tracked wood chipper according to claim 1, characterized in that, The elastic damping assembly includes a mounting rod and a spring, wherein: The mounting rod is fixed to the chassis, the spring is sleeved on the mounting rod, and a connecting block is fixed to the telescopic end of the spring. The connecting block is hinged to the end of the swing rod.

7. The tracked wood chipper according to claim 1, characterized in that, The machine body is provided with a drive mechanism, the track wheels are supported on the inner ends of the track, at least one of the track wheels is the drive wheel, the drive mechanism is connected to the track wheel for driving the drive wheel to rotate.

8. The tracked wood chipper according to claim 1, characterized in that, The machine body is provided with a feed hopper, a cutter head shell, and a discharge hopper, wherein the feed hopper, the cutter head shell, and the discharge hopper are connected in sequence, the cutter head in the cutter head shell is used to cut the material entering the discharge hopper, and the feed hopper and the discharge hopper are located on the front and rear sides of the machine body, respectively.

9. The tracked wood chipper according to claim 8, characterized in that, The diameter of the feed hopper gradually decreases along the feeding direction.

10. The tracked wood chipper according to claim 8, characterized in that, A structural reinforcing rod is fixed at the feed inlet of the feed hopper.

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