Walking type branch crusher

Abstract

The walking type branch crusher comprises an engine, a feeding mechanism, a crushing mechanism, a discharging mechanism and a walking mechanism, the crushing mechanism comprises a mounting box body, a cutter shaft and a cutter, the cutter shaft and the cutter are arranged in the mounting box body, and the output end of the engine is in transmission connection with the cutter shaft through a first belt; the discharging mechanism and the feeding mechanism are mounted on the front side and the rear side of the mounting box correspondingly. The walking mechanism comprises a front wheel assembly and a rear wheel assembly which are installed on the front side and the rear side of the installation box body respectively, the front wheel assembly comprises a gearbox, a left half shaft, a right half shaft and two front wheels, the left half shaft and the right half shaft are connected to the left end and the right end of an output shaft of the gearbox, and the two front wheels are fixed to the tail ends of the left half shaft and the right half shaft. An input shaft of the gearbox is in transmission connection with the engine through a second belt; the rear wheels are a walking wheel located between the two front wheels or two walking wheels arranged on the opposite sides of the front wheels. By improving the walking mechanism, the walking mechanism is more stable during advancing and more convenient to push.

Description

Technical Field

[0001] The invention relates to the field of garden machinery and equipment, and in particular to a walking type branch chipper. Background Art

[0002] The branch shredder is suitable for gardens, fruit farms, forest farms, tea farms, nurseries, gardens and other places. It is mainly used to crush wood, branches, leaves and other plants into debris. Because of its convenient operation, it can also be used for crushing branches, leaves, bark, and rattan in large communities, parks, colleges, enterprises and institutions; it can also be used for crushing edible fungus substrates and on-site crushing of paving materials in racecourses, etc. It can greatly save transportation costs to achieve the purpose of energy saving and environmental protection, while reducing fire hazards.

[0003] The existing branch chipper mainly includes a power output part, a feeding mechanism, a crushing mechanism, a discharging mechanism and a traveling mechanism. The output end of the engine is connected to the crushing mechanism and the traveling mechanism to provide power for the crushing mechanism and the traveling mechanism. The feeding mechanism and the discharging mechanism are respectively arranged on both sides of the crushing mechanism and are arranged in an inclined manner. When in use, the material is fed into the feeding port of the feeding mechanism. After the material enters the crushing mechanism and is chopped, the chopped material is thrown to the discharging mechanism through the fan blades on the crushing mechanism, and the chopped material is sent out by the discharging mechanism.

[0004] The branch shredder disclosed in the Chinese patent application number 2022107645721 includes a branch shredder body and a power output member provided on the branch shredder body to provide power; it also includes a rolling structure provided on one side of the bottom end of the shredder body; the rolling structure includes a rolling wheel group provided with rolling wheels on both sides and connected by a central axis, a clutch assembly connected to the power output member through a belt, and a linkage anti-skid assembly provided with a gear group to connect the roller assembly to the clutch assembly; the shredder mechanism includes an installation box and a cutter disc rotatably installed in the installation box, a rotating tripod is provided at the rear end of the installation box, and the rolling wheel and the feeding mechanism are on the same side. During the implementation process, the rotating tripod needs to be flipped to the upper end, and then the feeding hopper is pressed down to keep the branch shredder body balanced before it can be pushed forward. When using this structure, there are only two points of force when moving forward, and it is difficult to maintain balance, which is inconvenient to use. At the same time, the existing feeding mechanism and the rotating tripod are on opposite sides, and the operator generally stands on one side of the feeding mechanism to feed materials such as branches to be chopped. Therefore, before pushing, it is necessary to go around to one side of the rotating tripod and flip the rotating tripod upwards. When chopping branches in a fixed place, it is necessary to go around to one side of the tripod and then flip the rotating tripod downwards to make it against the ground. This usage method is cumbersome and inconvenient to use. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a walking type branch shredder to solve the problems that the walking mechanism of the existing branch shredder is supported by only two points, it is difficult to maintain balance during the forward movement, and the operation is cumbersome and inconvenient to use during the conversion process.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A walking type branch chipper, comprising an engine, a feeding mechanism, a crushing mechanism, a discharging mechanism and a walking mechanism, wherein the crushing mechanism comprises an installation box, a knife shaft and a plurality of cutters arranged in the installation box, the output end of the engine is connected to the knife shaft through a first belt transmission, and the discharging mechanism and the feeding mechanism are respectively installed on the front and rear sides of the installation box; the walking mechanism comprises a front wheel assembly and a rear wheel assembly respectively installed on the front and rear sides of the installation box, the front wheel assembly comprises a gearbox, a left half shaft and a right half shaft connected to the left and right ends of the gearbox output shaft, and two front wheels fixed to the ends of the left half shaft and the right half shaft, the gearbox is a gearbox with a differential, and the input shaft of the gearbox is connected to the engine through a second belt transmission; the rear wheel assembly comprises a walking wheel between the two front wheels, or two walking wheels arranged on opposite sides of the front wheels. In this way, the crushing mechanism and the walking mechanism are respectively connected to the engine transmission, so that crushing and walking do not interfere with each other, and crushing can also be performed during walking. The front wheel assembly of the walking mechanism is connected to the engine through a second belt drive. Under the drive of the engine, the power is transmitted to the gearbox through the second belt, and then the gearbox output shaft outputs it to the left and right half shafts, driving the left and right half shafts to rotate, and then driving the front wheel fixed at the end of the half shaft to rotate, so as to achieve walking. When walking, the universal wheel on the rear side rolls synchronously under the drive of the front wheel assembly, realizing multi-point ground walking, which can always maintain balance, effectively solving the problem that it is difficult to maintain balance when going uphill and downhill with two-point support; and the problem that the grip is insufficient on the soft ground covered with branches and leaves, and it is easy to get stuck. When the rear wheel assembly adopts two walking wheels, it forms a four-wheel walking, which is in a grounded state under any circumstances, and is more stable when walking. When the rear wheel assembly adopts one walking wheel, it forms a stable triangular support with the two front wheels, which is in a grounded state when walking and crushing, and the structure is stable. When it needs to stop at the current position, the front wheel assembly is directly locked by braking, and the rear wheel cannot move, so as to achieve the purpose of crushing on the spot. It can be seen that whether walking or stationary, the rear wheels and the front wheels can achieve stable support, and there is no need to perform other operations to switch the usage status, making the operation simpler and more convenient.

[0007] Furthermore, a driving pulley is fixedly installed at the end of the output shaft of the engine, and a first pulley and a second pulley are installed on the side of the mounting box. The first pulley is sleeved on one end of the knife shaft and is keyed to the knife shaft; the first pulley is connected to the driving pulley through a first belt transmission, and the second pulley is connected to the driving pulley through a second belt transmission. In this way, the first pulley and the second pulley are arranged on the same side, and are both connected to the driving pulley through a belt transmission, and the structure is compact.

[0008] Furthermore, a first tensioning wheel is provided on the engine housing, and a second tensioning wheel is provided on the mounting housing. The first tensioning wheel is located on one side of the first belt and is used to tension the first belt, and the second tensioning wheel is located on one side of the second belt and is used to tension the second belt. In this way, after the tensioning wheel is provided, the vibration in the belt transmission system can be absorbed, the noise can be reduced, the service life of the entire system can be extended, and the engine can be started more easily. At the same time, it can also provide appropriate tension, thereby ensuring the effectiveness of power transmission and the stability of the system.

[0009] Furthermore, the feeding mechanism includes a feeding barrel, the lower end of which is detachably mounted on the mounting box and communicated with the inner cavity of the mounting box; a walking clutch handle and a shredding clutch handle are mounted on the left or right side of the feeding barrel, the walking clutch handle is rotatably mounted on the feeding barrel through a pin shaft, and a walking control cable whose end is connected to the second tensioning wheel is provided on the walking clutch handle; the shredding clutch handle is rotatably mounted on the feeding barrel through a pin shaft, and a shredding control cable whose end is connected to the first tensioning wheel is provided on the shredding clutch handle. In this way, by holding the walking clutch handle, the cable can be pulled to move, and then the corresponding second tensioning wheel is pulled, driving the tensioning wheel to move toward the transmission belt, and after the tensioning wheel moves toward the transmission belt, the second belt is tensioned, and the driving pulley of the engine is connected to the second pulley in transmission, so that the machine body has the power to walk. Similarly, after the branch shredding clutch handle is turned, it can drive the branch shredding control cable to be pulled, so that the first belt is tensioned, and the driving pulley and the first pulley are connected in transmission, so that the shredding mechanism can be driven. This structure can effectively ensure that the shredding and walking are controlled separately, which is convenient to operate and meets the requirements of different working conditions.

[0010] Furthermore, the front wheel is a track wheel or a rubber wheel, and the running wheel is a universal wheel or a track wheel; when the front wheel is a single running wheel, the upper end of the caster frame can be rotatably mounted on the rear side of the mounting box; when there are two running wheels, they are mounted on the rear side of the mounting box through a rear wheel shaft. When it is a track wheel, it can adapt to different road conditions and can also run smoothly on mountainous terrain. When the running wheel is a universal wheel, that is, a conventional Furthermore, an emergency stop switch is installed on the side of the feed barrel close to the engine, and the emergency stop switch is connected in parallel with the engine's flameout switch; a U-shaped safety frame is rotatably installed on the upper end of the feed barrel, and a linkage rod is sleeved on the crossbar of the safety frame. The linkage rod is rotatably connected to a linkage plate through a pin shaft, and the linkage plate is vertically arranged, and a limit switch is connected at the end. The limit switch is connected in parallel with the engine's flameout switch through a wire. When the safety frame is pressed down under the action of an external force, the linkage rod can trigger the limit switch to shut down the power. In this way, the emergency stop switch is connected to the engine's flameout switch (the emergency stop switch is a normally open switch). When there is a fault or other emergency situation, the emergency stop switch can be directly pressed, and the circuit between the emergency stop switch and the flameout switch is closed, resulting in a short circuit, and the engine is shut down. The flameout switch is arranged close to one side of the engine, on the opposite side of the operator's position. The switch is arranged here to prevent the operator from accidentally touching and shutting down the engine. The safety frame is arranged close to the operator's side. When pressed downward, it can drive the linkage rod to rotate. The upper end of the linkage rod rotates downward, and the lower end rotates upward, thereby driving the linkage plate connected thereto to rotate, triggering the limit switch electrically connected to the flameout switch, and realizing flameout.

[0011] Furthermore, a mounting seat is provided on the feed barrel, and a vertically arranged strip hole is provided on both the left and right sides of the mounting seat, and a horizontally arranged first shaft is movably installed between the strip holes; the lower end of the linkage plate is sleeved on the first shaft and can rotate around the first shaft under the action of external force; a return spring sleeved on the linkage plate is provided between the mounting seat and the pin shaft. In this way, the provided mounting seat can facilitate the installation of the linkage plate, and the linkage plate is sleeved on the first shaft and can rotate around it, with a compact structure. The return spring provided on the linkage plate can be compressed after the linkage rod rotates, and return to the initial position under the action of the return spring after there is no external force pressing the safety frame.

[0012] Furthermore, a shift operating handle is provided on the left or right outer end surface of the feed barrel, and a shift pull rod is connected to the shift operating handle, and the end of the shift pull rod is connected to the shift fork of the differential. In this way, the shift operating handle can pull the shift pull rod after being rotated to achieve gear shifting.

[0013] Furthermore, a throttle handle can be rotatably mounted on the same side of the gear shift control handle and on the feed barrel, and a throttle switch and a brake handle are mounted on the throttle handle, and the brake handle can be rotatably mounted on the throttle handle, and a brake cable is connected to the brake handle. In this way, the throttle switch provided on the throttle handle can be used to adjust the throttle size, and the brake handle can achieve braking.

[0014] The control method of the above-mentioned walking type branch chipper includes: when it is necessary to move forward, the operator holds on the feeding mechanism, starts the engine, and the engine drives the front wheel mechanism to move; when a fault occurs during the branch chipping process, the emergency stop switch is pressed. After the emergency stop switch is pressed, the circuit between the emergency stop switch and the shutdown switch is closed to shut down the power, or the safety frame is pressed downward, and the linkage rod is driven downward by the safety frame to trigger the limit switch to shut down the power. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the walking type branch chipper in Example 1; Figure 2 It is a side view of the walking type branch chipper in Example 1; Figure 3 It is a rear view of the walking type branch chipper in Example 1; Figure 4 It is a front view of the walking type branch chipper in Example 1; Figure 5 It is a schematic diagram of the three-dimensional structure of the walking type branch chipper in Example 2. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0017] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] Example 1 like Figure 1-Figure 4As shown, the walking type branch chipper provided in this embodiment (with the discharging mechanism side as the front) includes an engine 1, a feeding mechanism 2, a chipping mechanism 3, a discharging mechanism 4 and a walking mechanism 5, wherein the chipping mechanism 3 includes an installation box 31 and a knife shaft 32 and a plurality of cutters (not shown in the figure) arranged in the installation box 31, and the output end of the engine 1 is connected to the knife shaft 32 through a first belt 14 for transmission, and the discharging mechanism 4 and the feeding mechanism 2 are respectively installed on the front and rear sides of the installation box 31; the walking mechanism 5 includes a front wheel assembly and a The rear wheel assembly includes a gearbox 51, a left half shaft 52 and a right half shaft 53 connected to the left and right ends of the output shaft of the gearbox 51, and two front wheels 54 fixed to the ends of the left half shaft 52 and the right half shaft 53. The gearbox 51 is a gearbox 51 with a differential, and the input shaft of the gearbox 51 is connected to the engine 1 through a second belt 17. The rear wheel assembly is a walking wheel 55, which is a universal wheel. The upper end of the caster frame of the walking wheel 55 can be rotatably installed on the rear side of the installation box 31, and the walking wheel 55 and the two front wheels 54 are distributed in an isosceles triangle. In this way, the crushing mechanism 3 and the walking mechanism 5 are respectively connected to the engine 1, so that the crushing and walking do not interfere with each other, and the crushing can also be carried out during the walking process. The front wheel assembly of the walking mechanism 5 is connected to the engine 1 through the second belt 17. Under the drive of the engine 1, the power is transmitted to the gearbox 51 through the second belt 17, and then the output shaft of the gearbox 51 outputs to the left half shaft 52 and the right half shaft 53, driving the left half shaft 52 and the right half shaft 53 to rotate, and then driving the front wheel 54 fixed at the end of the half shaft to rotate, so as to achieve walking. When walking, the universal wheel on the rear side rolls synchronously under the drive of the front wheel assembly, and three-point grounding walking is achieved, which can always maintain balance. At the same time, the walking wheel 55 is in a grounding state under any circumstances. When it is necessary to stop at the current position to perform branch shredding operation, the front wheel can be directly locked by the brake to perform branch shredding operation; when it is necessary to walk again, the brake locks the front wheel, and the engine is started to drive the front wheel assembly to walk. It can be seen that when walking and stopping to shred branches, stable support can be achieved, and no additional operation is required to convert the support frame in different use states. Since the present application includes two front wheels 54 and one running wheel 55, when the vehicle is in a neutral state, it can also be pushed manually without much effort.

[0019] The gearbox 51 in this embodiment is an externally purchased product with a differential function, which makes steering easier. The running wheel 55 is made of nylon material. The two front wheels 54 are solid wheels and do not require maintenance for long-term storage. A brake drum is provided on the inner side of each of the two front wheels 54, and the brake drum is an externally purchased product. In specific implementation, the front wheels can also be replaced by track wheels.

[0020] like Figure 2As shown, a driving pulley 11 is fixedly installed at the end of the output shaft of the engine 1, and a first pulley 12 and a second pulley 15 are installed on the side of the mounting box 31. The first pulley 12 is sleeved on one end of the knife shaft 32 and is keyed to the knife shaft 32; the first pulley 12 is connected to the driving pulley 11 through a first belt 14, and the second pulley 15 is connected to the driving pulley 11 through a second belt 17; a first tensioning wheel 13 is provided on the engine 1 housing, and a second tensioning wheel 16 is provided on the mounting box 31. The first tensioning wheel 13 is located on one side of the first belt 14 and is used to tension the first belt 14, and the second tensioning wheel 16 is located on one side of the second belt 17 and is used to tension the second belt 17. In this way, the first pulley 12 and the second pulley 15 are arranged on the same side, and both are driven by belts with the driving pulley 11, and the structure is compact. After the tensioning wheel is provided, the vibration in the belt transmission system can be absorbed, the noise can be reduced, and the service life of the entire system can be extended. At the same time, it can also provide appropriate tension to ensure the effectiveness of power transmission and the stability of the system.

[0021] Specifically, the feeding mechanism 2 includes a feeding barrel, which is inclined and arranged in a V shape with the discharging barrel. The lower end of the feeding barrel can be detachably mounted on the mounting box 31 and is connected to the inner cavity of the mounting box 31; a walking clutch handle 7 and a branch crushing clutch handle 8 are installed on the left or right side of the feeding barrel, and the walking clutch handle 7 is rotatably mounted on the feeding barrel through a pin shaft, and a walking control cable (not shown in the figure) is provided on the walking clutch handle 7, one end of which is connected to the second tensioning wheel 16; the branch crushing operating handle is rotatably mounted on the feeding barrel through a pin shaft, and a branch crushing control cable (not shown in the figure) is provided on the branch crushing operating handle, one end of which is connected to the first tensioning wheel 13. In this way, by holding the travel clutch handle 7, the cable can be pulled to move, and then the corresponding second tensioning wheel 16 is pulled, driving the tensioning wheel to move toward the transmission belt. After the tensioning wheel moves toward the transmission belt, the second belt 17 is tensioned, and the driving pulley 11 of the engine 1 is connected to the second pulley 15, so that the machine body has the power to travel. Similarly, after the branch shredding operation handle is rotated, it can drive the branch shredding control cable to be pulled, so that the first belt 14 is tensioned, and the driving pulley 11 and the first pulley 12 are connected to each other, so that the transmission of the shredding mechanism 3 can be realized. This structure can effectively ensure that the branch shredding and walking are operated separately, which is convenient to operate and meets the requirements of different working conditions. The travel and branch shredding clutch handles 8 are both arranged on the side of the feed barrel, close to the barrel mouth of the feed barrel, which is convenient for the operator to operate.

[0022] Furthermore, an emergency stop switch 9 is installed on the side of the feed barrel close to the engine 1, and the emergency stop switch 9 is connected in parallel with the flameout switch of the engine 1; a U-shaped safety frame 10 is rotatably installed on the upper end of the feed barrel, and a linkage rod 101 is sleeved on the crossbar of the safety frame 10, and the linkage rod 101 is rotatably connected to a linkage plate 102 through a pin shaft, and the linkage plate 102 is vertically arranged, and a limit switch 103 is connected at the end, and the limit switch 103 is connected in parallel with the flameout switch of the engine through a wire. When the safety frame is pressed down under the action of external force, the linkage rod can trigger the limit switch to realize the flameout of the power. In this way, the emergency stop switch 9 is a normally open switch, which is connected to the flameout switch of the engine 1. When there is a fault or other emergency situation, the emergency stop switch 9 is directly pressed to conduct the circuit between the flameout switch connected in parallel with it to realize the power on and off. The flameout switch is arranged near one side of the engine 1, on the opposite side to the operator's position. The switch is arranged here to prevent the operator from accidentally touching and shutting down the engine 1. The safety frame 10 arranged near the operator's side can drive the linkage rod 101 to rotate after being pressed downward. The upper end of the linkage rod 101 rotates downward and the lower end rotates upward, thereby driving the linkage plate 102 connected thereto to rotate, thereby triggering the limit switch 103 at the lower end of the linkage plate, and then making the circuit between the flameout switch electrically connected to the limit switch conductive, thereby realizing the flameout of the engine.

[0023] In order to prevent the safety frame 10 from being accidentally touched by the operator and affecting the operator's putting materials into the feeding barrel, the safety frame 10 can be rotatably installed on the outside of the feeding barrel.

[0024] Furthermore, a mounting seat is provided on the feed barrel, and a vertically arranged strip hole is provided on both the left and right sides of the mounting seat, and a horizontally arranged first shaft is movably installed between the strip holes; the lower end of the linkage plate 102 is sleeved on the first shaft and can rotate around the first shaft under the action of external force; a return spring 104 sleeved on the linkage plate 102 is provided between the mounting seat and the pin shaft. In this way, the provided mounting seat can facilitate the installation of the linkage plate 102, and the linkage plate 102 is sleeved on the first shaft and can rotate around it, with a compact structure. The return spring 104 provided on the linkage plate 102 can be compressed after the linkage rod 101 rotates, and after there is no external force pressing the safety frame 10, it returns to the initial position under the action of the return spring 104.

[0025] Furthermore, a shift operating handle 6 is provided on the left outer end face of the feed barrel, and a shift pull rod is connected to the shift operating handle, and the end of the shift pull rod is connected to the shift fork of the differential. In this way, the shift operating handle 6 can pull the shift pull rod after rotating to achieve gear shifting.

[0026] Furthermore, a throttle handle can be rotatably mounted on the same side of the shift control handle 6 and the feed barrel, and a throttle switch and a brake handle are mounted on the throttle handle. The brake handle can be rotatably mounted on the throttle handle, and a brake cable is connected to the brake handle, and the end of the brake cable is connected to the brake drum of the two front wheels 54; a throttle cable is connected to the throttle switch, and the throttle switch is an externally purchased product and is a rotary switch. In this way, the throttle switch provided on the throttle handle can be used to adjust the throttle size, and the brake handle can achieve braking. When the front wheel 54 needs to be braked, the travel clutch handle is released, the brake handle is locked, and the brake drum brakes the front wheel.

[0027] Example 2 like Figure 5 As shown, the walking type branch chipper provided in this embodiment is different from that in the first embodiment only in the rear wheel mounting structure and the number of the rear wheels. Specifically, two walking wheels 55 are provided in this embodiment, which are arranged on the opposite side of the front wheel and are arranged in a rectangular shape with the front wheel. The two rear wheels are connected by a rear wheel axle, and the middle part of the rear wheel axle is connected to the safety box 31 through a connecting rod bracket. Specifically, the rear wheel can be a rubber wheel or a crawler wheel.

[0028] The present embodiment also provides a control method for a walking type branch shredder: when it is necessary to move forward, the operator holds the walking clutch handle 7 on the feeding mechanism, controls the walking clutch handle, pulls the walking control cable, starts the engine, and the engine drives the front wheel mechanism to move; when shredding branches, the operator controls the branch shredding clutch handle 8, pulls the branch shredding control cable, starts the engine, and drives the knife shaft to rotate to achieve branch shredding; when a fault occurs during the shredding process, the emergency stop switch is pressed to close the circuit between the emergency stop switch and the ignition switch to shut down the power, or the safety frame is pressed downward to drive the linkage rod downward through the safety frame to trigger the limit switch to shut down the power.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims

1. A walking type branch chipper, comprising an engine, a feeding mechanism, a chipping mechanism, a discharging mechanism and a walking mechanism, wherein the chipping mechanism comprises a mounting box, a knife shaft and a plurality of cutters arranged in the mounting box, the output end of the engine is connected to the knife shaft through a first belt transmission, and the discharging mechanism and the feeding mechanism are respectively mounted on the front and rear sides of the mounting box; characterized in that: The traveling mechanism comprises a front wheel assembly and a rear wheel assembly respectively mounted on the front and rear sides of the mounting box, the front wheel assembly comprises a gearbox, a left half shaft and a right half shaft connected to the left and right ends of the gearbox output shaft, and two front wheels fixed to the ends of the left half shaft and the right half shaft, the gearbox is a gearbox with a differential, and the input shaft of the gearbox is connected to the engine through a second belt drive; the rear wheel assembly comprises a traveling wheel located between the two front wheels, or two traveling wheels located on opposite sides of the front wheels.

2. The walking type branch chipper according to claim 1, characterized in that: A driving pulley is fixedly installed at the end of the output shaft of the engine, and a first pulley and a second pulley are installed on the side of the mounting box. The first pulley is sleeved on one end of the knife shaft and is connected to the knife shaft key; the first pulley is connected to the driving pulley through a first belt transmission, and the second pulley is connected to the driving pulley through a second belt transmission.

3. The walking type branch chipper according to claim 2, characterized in that: A first tensioning wheel is provided on the engine housing, and a second tensioning wheel is provided on the mounting housing. The first tensioning wheel is located at one side of the first belt and is used for tensioning the first belt. The second tensioning wheel is located at one side of the second belt and is used for tensioning the second belt.

4. The walking type branch chipper according to claim 3, characterized in that: The feeding mechanism includes a feeding barrel, the lower end of which is detachably mounted on the mounting box and communicated with the inner cavity of the mounting box; a walking clutch handle and a branch crushing clutch handle are mounted on the left or right side of the feeding barrel, the walking clutch handle is rotatably mounted on the feeding barrel through a pin shaft, and a walking control cable whose end is connected to the second tensioning wheel is provided on the walking clutch handle; the branch crushing clutch handle is rotatably mounted on the feeding barrel through a pin shaft, and a branch crushing control cable whose end is connected to the first tensioning wheel is provided on the branch crushing clutch handle.

5. The walking type branch chipper according to claim 1, 2, 3 or 4, characterized in that: The front wheel is a track wheel or a rubber wheel, and the travel wheel is a universal wheel or a track wheel; when one travel wheel is provided, the upper end of the caster frame can be rotatably installed on the rear side of the installation box; when two travel wheels are provided, they are installed on the rear side of the installation box through a rear wheel shaft.

6. The walking type branch chipper according to claim 1, 2, 3 or 4, characterized in that: An emergency stop switch is installed on the side of the feed barrel close to the engine, and the emergency stop switch is connected in parallel with the engine's flameout switch through an electric wire; a U-shaped safety frame is rotatably installed on the upper end of the feed barrel, and a connecting rod is sleeved on the cross bar of the safety frame. The connecting rod is rotatably connected to a connecting plate through a pin shaft, and the connecting plate is vertically arranged, with a limit switch connected to the end, and the limit switch is connected in parallel with the engine's flameout switch through a wire. When the safety frame is pressed down by an external force, the connecting rod can trigger the limit switch to shut down the power.

7. The walking type branch chipper according to claim 6, characterized in that: A mounting seat is provided on the feed barrel, and a vertically arranged strip hole is provided on the left and right sides of the mounting seat, and a horizontally arranged first shaft is movably installed between the strip holes; the lower end of the linkage plate is sleeved on the first shaft and can rotate around the first shaft under the action of external force; a return spring sleeved on the linkage plate is provided between the mounting seat and the pin shaft.

8. The walking type branch chipper according to claim 1, 2, 3 or 4, characterized in that: A shift operating handle is also provided on the left or right outer end surface of the feed barrel, and a shift pull rod is connected to the shift operating handle, and the end of the shift pull rod is connected to the shift fork of the differential.

9. The walking type branch chipper according to claim 8, characterized in that: A throttle handle can be rotatably mounted on the feed barrel on the same side of the shift control handle, a throttle switch and a brake handle are mounted on the throttle handle, the brake handle can be rotatably mounted on the throttle handle, and a brake cable is connected to the brake handle.

10. A control method for a walking branch chipper according to any one of claims 6 to 9, characterized in that: include: When it is necessary to move forward, the operator holds on to the feeding mechanism, starts the engine, and the engine drives the front wheel mechanism to move; When a fault occurs during the branch crushing process, the emergency stop switch is pressed to close the circuit between the emergency stop switch and the flameout switch to shut down the power, or the safety frame is pressed down to drive the linkage rod downward through the safety frame to trigger the limit switch to shut down the power.

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