Hydraulic self-propelled tree root machine

Abstract

The invention provides a hydraulic self-propelled tree root machine, and relates to the technical field of tree root trimming, compared with a traditional pulverizer, the hydraulic self-propelled tree root machine is additionally provided with a limiting rotation control mechanism, and through the adjustable limiting rotation control mechanism, a hand-held frame has a multi-angle positioning function, so that the view limitation of an original structure is broken through; and active adjustment of an operation visual angle is realized on the premise of keeping the structural strength of the equipment. According to the invention, an operator can flexibly adjust the angle of the armrest frame according to the actual terrain and operation requirements in the crushing operation process so as to obtain the optimal observation angle. The crushing degree judgment error caused by sight blocking is effectively avoided, and meanwhile, the movement stability and the operation safety of the equipment are kept.

Description

Technical Field

[0001] The invention relates to the technical field of tree root trimming, in particular to a hydraulic self-propelled tree root machine. Background Art

[0002] Traditional agricultural feed grinders and garden tool grinders are gradually recognized and accepted by people, and have been well promoted and applied. However, the grinders currently on the market have no way to deal with the stumps and roots left after felling or tree lodging. They cannot directly grind them, and need manpower or large machinery to remove them, decompose them, and then grind them, which is time-consuming and labor-intensive, and causes damage to vegetation and soil, and is inconvenient to use.

[0003] For this purpose, a crusher came into being. The patent named "A Stump and Root Crusher" and the announcement number "CN204047420U" discloses the structure of the stump and root crusher. The stump and root crusher mainly includes a hand frame, a control mechanism, tires, a chassis, a power mechanism, a transmission mechanism and a crushing mechanism. There is one tire on each side, and the chassis is installed through two tires. The hand frame is installed on one side of the chassis, and the hand frame also has a control mechanism for controlling the start and stop of the power mechanism. The crushing mechanism is installed on the opposite side of the chassis, and the power mechanism is installed on the upper surface of the chassis. The power mechanism is connected to the crushing mechanism through the transmission mechanism. The hand frame is held and the power mechanism is started by the control mechanism, and then the power mechanism drives the crushing mechanism to crush the tree roots or stumps.

[0004] However, when the operator holds the handrail to crush the tree roots and stumps, since the handrail is fixed on the opposite side of the crushing mechanism, the power mechanism on the base frame blocks the operator's line of sight, and the operator cannot intuitively see the degree of crushing of the tree roots and stumps, resulting in excessive or insufficient crushing of the tree roots and stumps. Therefore, how to intuitively see the degree of crushing of the tree roots and stumps by the crushing mechanism has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a hydraulic self-propelled tree stump crusher to solve the technical problem of excessive or insufficient crushing of tree roots and stumps due to the hand frame being fixed on the opposite side of the crushing mechanism and the power mechanism on the chassis blocking the operator's line of sight. The operator cannot intuitively see the degree of crushing of the tree roots and stumps, resulting in excessive or insufficient crushing of the tree roots and stumps.

[0006] To achieve the above object, the present invention provides a hydraulic self-propelled tree root machine, which includes a handrail, tires, a chassis, a power mechanism, a transmission mechanism, and a crushing mechanism. The tires are arranged in pairs at a preset distance interval. The chassis is mounted on the tires. The power mechanism and the handrail are provided on the chassis. The transmission mechanism is arranged on one side of the power mechanism, and the power mechanism is in transmission connection with the transmission mechanism. The end of the transmission mechanism is in transmission connection with the crushing mechanism. A limit rotation control mechanism is arranged in the handrail, and the handrail is in limit rotation connection with the chassis.

[0007] Optionally, the limit rotation control mechanism includes a rotation support assembly and a control assembly. The rotation support assembly is connected to both the chassis and the handrail at the same time. The control assembly controls the rotation of the handrail relative to the chassis through the limit rotation control assembly.

[0008] Optionally, the rotation support assembly includes a support column, a first flange, a second flange, and a connecting plate. The support column is fixedly arranged on the upper surface of the chassis. The first flange is fixedly arranged on the support column. The second flange is arranged above the first flange and is rotatably connected to the first flange through a bearing. The connecting plate is fixedly arranged on the second flange, and opposite ends of the connecting plate are fixedly connected to the handrail at the same time. The control assembly controls the first flange to rotate relative to the second flange to drive the handrail to rotate relative to the chassis.

[0009] Optionally, a plurality of jacks are provided on both the first flange and the second flange. The jacks are arranged at a preset distance interval on the edges of the first flange and the second flange. The control assembly passes through the jacks of the second flange, and whether the control assembly is inserted into the jacks of the first flange is used to realize the rotation of the second flange relative to the first flange.

[0010] Optionally, the control assembly includes a control rod, a baffle, and an elastic member. The baffle is fixedly installed on the second flange. The control rod is movably passed through the jacks of the second flange and the baffle. The elastic member is located between two opposite baffles.

[0011] Optionally, the baffle includes a first baffle and a second baffle. Both the first baffle and the second baffle are L-shaped. The vertical plates of the first baffle and the second baffle are connected. The horizontal plates of the first baffle and the second baffle are arranged opposite to each other at a preset distance interval.

[0012] Optionally, the control component further includes a limiting hollow column and a limiting rod. The limiting hollow column is fixedly arranged on the cross plate of the second baffle. The control rod passes through the limiting hollow column. The limiting rod horizontally passes through the control rod and its end is lapped on the limiting hollow column.

[0013] The side wall of the limiting hollow column is provided with inclined surfaces which are arranged oppositely, and both ends of the inclined surfaces are provided with arc grooves.

[0014] Optionally, it further includes a hydraulic motor and a differential. The differential is arranged between the tires, and the hydraulic motor is drivingly connected with the differential.

[0015] Optionally, it further includes an electromagnetic clutch, an electric control switch and a pull rod. The electromagnetic clutch is installed on the transmission mechanism. The pull rod is installed on the handrail frame. The pull rod is controllably connected with the electromagnetic clutch through the electric control switch. When the pull rod is pulled, the electromagnetic clutch connects the power mechanism and the transmission mechanism.

[0016] Optionally, it further includes a fulcrum wheel which is detachably installed on one side of the chassis opposite to the crushing mechanism.

[0017] The hydraulic self-propelled tree root machine provided by the present invention has the following technical effects:

[0018] Compared with the traditional crusher, this hydraulic self-propelled tree root machine is added with a limiting rotation control mechanism. Through the adjustable limiting rotation control mechanism, the handrail frame has a multi-angle positioning function, which not only breaks through the vision limitation of the original structure, but also realizes the active adjustment of the operation perspective on the premise of maintaining the structural strength of the equipment. That is, the present invention enables the operator to flexibly adjust the angle of the handrail frame according to the actual terrain and operation requirements during the crushing operation to obtain the best observation perspective. It effectively avoids the misjudgment of the crushing degree caused by the sight blockage, and at the same time maintains the moving stability and operation safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0020] Figure 1 is a schematic three-dimensional structure diagram of a preferred embodiment of the hydraulic self-propelled tree root machine of the present invention;

[0021] Figure 2 is Figure 1Another three-dimensional structural schematic diagram of the hydraulic self-propelled tree root machine;

[0022] Figure 3 is Figure 2 The enlarged structural schematic diagram at position A in [the figure];

[0023] Figure 4 is Figure 1 The internal structure schematic diagram of the hydraulic self-propelled tree root machine in [the figure].

[0024] Among them, Figures 1-4 :

[0025] 1. Handrail; 11. Pull rod; 12. Electric control switch; 2. Tire; 3. Chassis; 4. Power mechanism; 5. Transmission mechanism; 6. Crushing mechanism; 7. Limit rotation control mechanism; 71. Support column; 72. First flange; 73. Second flange; 74. Control rod; 75. Elastic member; 761. First baffle; 762. Second baffle; 77. Connecting plate; 78. Limit hollow column; 781. Inclined surface; 782. Arc groove; 79. Limit rod; 8. Electromagnetic clutch; 9. Fulcrum wheel; 10. Hydraulic motor. Specific implementation manners

[0026] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope protected by the present invention.

[0027] In the prior art, although traditional agricultural feed crushers and garden tool crushers have been widely used, there are still obvious defects in the treatment of stumps and tree roots remaining after logging or fallen trees. Existing crushers cannot directly crush stumps and tree roots, and rely on manual labor or large machinery to remove and decompose them before crushing, which is time-consuming and laborious and easily damages vegetation and soil. The patent with the publication number CN204047420U discloses a stump and tree root crusher, the structure of which includes a fixed handrail 1, a chassis 3 and a power mechanism 4. However, during operation, the handrail 1 is fixed to one side of the chassis 3, and the power mechanism 4 blocks the operation line of sight, resulting in the inability to observe the crushing degree in real time, which is likely to cause problems of over-crushing or under-crushing.

[0028] In order to solve the above problems, in view of the defect of the hand frame 1 being fixed in the prior art and causing obstruction of vision, the rigid connection between the hand frame 1 and the base frame 3 is the key factor limiting the operating viewing angle. Based on this, by introducing an adjustable mechanical structure, the hand frame 1 is designed to be rotatable relative to the base frame 3, thereby expanding the operating field of view while maintaining the stability of the equipment. The specific idea is: on the basis of maintaining the connection strength between the hand frame 1 and the base frame 3, a mechanism that can control the rotation angle is added, so that the operator can adjust the position of the hand frame 1 according to actual needs to avoid the visual obstruction of the power mechanism 4.

[0029] Therefore, if Figures 1-4 As shown, the present invention proposes a hydraulic self-propelled tree root machine comprising a hand frame 1, tires 2, a chassis 3, a power mechanism 4, a transmission mechanism 5 and a crushing mechanism 6. The tires 2 are arranged in pairs and at intervals, the chassis 3 is installed on the tires 2 and carries the power mechanism 4, and the transmission mechanism 5 connects the power mechanism 4 and the crushing mechanism 6.

[0030] Different from the prior art, the present invention is provided with a position-limiting rotation control mechanism 7 in the handrail 1, and the position-limiting rotation control mechanism 7 enables the handrail 1 and the base frame 3 to form a connection structure with an adjustable angle.

[0031] The limited rotation control mechanism 7 is a mechanical component that can control the rotation range of the handrail 1 and maintain a stable state. Specifically, it can be implemented by using a rotation support component with a positioning hole and a latch-type control component. While maintaining structural stability, the mechanism allows the operator to adjust the angle of the handrail 1 according to needs. The limited rotation connection between the handrail 1 and the base frame 3 is a rotational freedom within a preset angle range between the two, for example, it can deviate 45 degrees to the left and right. Specifically, it can be implemented through a flange bearing assembly, which can ensure structural strength and achieve flexible rotation.

[0032] Specifically, the operator adjusts the tilt angle of the hand frame 1 by manipulating the limited rotation control mechanism 7, and the hand frame 1 rotates around the connecting axis between it and the base frame 3, changing the relative viewing angle between the operating position and the crushing mechanism 6. When it is necessary to observe the crushing operation surface, the hand frame 1 can be rotated outward at a specific angle, so that the operator can bypass the power mechanism 4 and directly observe the working state of the crushing mechanism 6. After the angle adjustment is completed, the limited rotation control mechanism 7 automatically locks the current angle to maintain the stability of the operation.

[0033] Compared with the prior art, the fixed installation of the hand support frame 1 of the traditional crusher causes the operating line of sight to be blocked by the power mechanism 4, while the present invention uses an adjustable limit rotation control mechanism 7 to enable the hand support frame 1 to have a multi-angle positioning function. This not only breaks through the field of view limitation of the original structure, but also realizes the active adjustment of the operating angle of view while maintaining the structural strength of the equipment. Compared with the rigid connection structure of the CN204047420U patent, the present invention solves the core defect that the operator cannot directly observe the crushing process.

[0034] That is, in the crushing operation process, the present invention enables the operator to flexibly adjust the angle of the handrail 1 according to the actual terrain and operation requirements to obtain the best viewing angle. This effectively avoids the misjudgment of the crushing degree caused by line of sight obstruction, and at the same time maintains the moving stability and operation safety of the equipment.

[0035] As a preferred embodiment, the limit rotation control mechanism 7 includes a rotation support component and a control component. The rotation support component is connected to both the chassis 3 and the handrail 1, and the control component controls the rotation of the handrail 1 relative to the chassis 3 through the limit rotation control component.

[0036] The rotation support component is a mechanical structure connecting the chassis 3 and the handrail 1, which can be specifically realized by combining a flange plate and a support column 71, and is used to carry the rotational movement of the handrail 1 and provide support. The control component is an operating mechanism for adjusting the angle of the handrail 1, which can be specifically realized by the cooperation of a jack and a plug rod, and is used to lock the handrail 1 at a specific angle or unlock it to adjust the position.

[0037] Specifically, the rotation support component realizes the rotational freedom of the handrail 1 through the cooperation of a flange plate and a bearing, and the control component controls the relative rotation of the flange plate by inserting or disengaging the jack. When the control component is inserted into the jack, the handrail 1 and the chassis 3 maintain a fixed angle; when the control component disengages from the jack, the handrail 1 can rotate around the support column 71 to the target angle and then be locked again. The operator can adjust the position of the handrail 1 in real time through the control component to avoid the line of sight obstruction of the power mechanism 4 and directly observe the working state of the crushing mechanism 6.

[0038] Specifically, as Figure 3 shown, the rotation support component includes a support column 71, a first flange plate 72, a second flange plate 73 and a connecting plate 77. The support column 71 is fixedly arranged on the upper surface of the chassis 3, the first flange plate 72 is fixedly arranged on the support column 71, the second flange plate 73 is arranged above the first flange plate 72 and is rotatably connected to the first flange plate 72 through a bearing. The connecting plate 77 is fixedly arranged on the second flange plate 73, and both opposite ends are simultaneously fixedly connected to the handrail 1. The control component controls the relative rotation of the first flange plate 72 relative to the second flange plate 73 to drive the handrail 1 to rotate relative to the chassis 3.

[0039] Among them, the support column 71 is a column structure vertically fixed on the upper surface of the chassis 3, which can be specifically realized by welding or bolt connection, and is used to provide stable support for the first flange 72. The first flange 72 and the second flange 73 are annular disc-shaped components that can rotate relative to each other through bearings. Specifically, steel flanges with central holes can be used. The first flange 72 is fixedly connected to the support column 71, and the second flange 73 forms a rotatable fit with the first flange 72 through bearings, enabling the handrail 1 to rotate around the axis of the support column 71. The connecting plate 77 is a transverse connecting member fixedly connected to the handrail 1 at both ends. Specifically, a rectangular steel plate can be used, and the second flange 73 is connected to the handrail 1 by welding or bolts to transfer the rotational movement of the second flange 73 to the handrail 1, thereby realizing the position adjustment of the handrail 1.

[0040] Specifically, the support column 71 is fixed on the upper surface of the chassis 3. The first flange 72 is connected to the top of the support column 71 by welding or bolts. The second flange 73 is installed above the first flange 72 through bearings, enabling the second flange 73 to rotate around the axis of the support column 71. Both ends of the connecting plate 77 are fixedly connected to the frame of the handrail 1 by welding or bolts. When the second flange 73 is driven to rotate, the connecting plate 77 drives the handrail 1 to rotate synchronously, thereby changing the angle of the handrail 1 relative to the chassis 3. For example, when it is necessary to adjust the operation view, the operator releases the jack locking between the first flange 72 and the second flange 73 through the control component, rotates the handrail 1 to an appropriate angle and then relocks it, so that the working area of the crushing mechanism 6 is within the visible range.

[0041] More specifically, continue to refer to Figure 3 As shown, a number of jacks are provided on both the first flange 72 and the second flange 73. The jacks are located at the edges of the first flange 72 and the second flange 73 at a preset distance interval. The control component passes through the jacks of the second flange 73, and the rotation of the second flange 73 relative to the first flange 72 is realized according to whether the control component is inserted into the jacks of the first flange 72.

[0042] Among them, the jacks are hole structures distributed on the edge of the flange, which can be specifically realized by uniformly spaced round holes. For example, the distance between adjacent jacks can be 100 millimeters. The rotation limit is realized through the jacks to ensure that the handrail 1 is stably fixed after rotation.

[0043] When the operator needs to adjust the position of the handrail frame 1, pull out the control lever 74 to disengage it from the jack of the first flange 72. At this time, the second flange 73 can rotate around the bearing, driving the handrail frame 1 to deflect relative to the chassis 3. After adjustment in place, the control lever 74 is reinserted into the corresponding jack of the first flange 72 to lock the first flange 72 and the second flange 73. Thus, the operator can flexibly adjust the orientation of the handrail frame 1 according to needs, and directly observe the operation of the crushing mechanism 6. For example, if the crushing area is on the right side of the chassis 3, the operator can turn the handrail frame 1 to the left to avoid the visual occlusion area of the power mechanism 4.

[0044] More specifically, as Figure 3 shown, the control assembly includes a control lever 74, a baffle, and an elastic member 75. The baffle is fixedly installed on the second flange 73. The control lever 74 is movably inserted through the jack of the second flange 73 and the baffle, and the elastic member 75 is located between two opposite baffles.

[0045] The control lever 74 is a component used to limit the relative rotation of the second flange 73 relative to the first flange 72. Specifically, it can be implemented by a metal rod with a grip, and its end can be inserted into the jack of the first flange 72 as needed to achieve limit fixation. The elastic member 75 is a buffer element that provides a restoring force. Specifically, it can be implemented by a helical spring. When it is compressed, it allows the control lever 74 to displace, and after release, it drives the control lever 74 to return to its original position.

[0046] Specifically, when it is necessary to adjust the rotation angle of the handrail frame 1 relative to the chassis 3, the control lever 74 is pulled up to disengage it from the jack of the first flange 72. At this time, the elastic member 75 is compressed and contracted between the baffles, and the second flange 73 can rotate freely. When the handrail frame 1 rotates to the target angle, the control lever 74 is reinserted into the corresponding jack of the first flange 72 under the action of the restoring force of the elastic member 75 to achieve fixation. This structure realizes the rapid adjustment and locking of the angle of the handrail frame 1 through mechanical linkage, and the operation can be completed without the aid of external tools.

[0047] In detail, the above-mentioned baffle includes a first baffle 761 and a second baffle 762. Both the first baffle 761 and the second baffle 762 are L-shaped. The vertical plate of the first baffle 761 is connected to the vertical plate of the second baffle 762, and the horizontal plates of the first baffle 761 and the second baffle 762 are arranged opposite to each other at a preset distance.

[0048] Among them, the L-shaped baffle is a plate-like structure composed of a vertical plate and a horizontal plate that are perpendicular to each other. Specifically, it can be formed by bending a steel plate. A right-angle support structure is formed at the connection between the vertical plate and the horizontal plate. Oppositely arranged at a preset distance means that the horizontal plates of the two L-shaped baffles are parallel to each other and have a certain gap. The vertical plate connection means that the vertical parts of the two baffles are fixed together by welding or riveting. Specifically, angle steel can be used to reinforce the connection to enhance the structural strength. This connection method makes the two baffles form an integral frame structure.

[0049] Specifically, the vertical parts of the two L-shaped baffles form an integral support frame, while the horizontal parts are in a parallel and spaced state. This structure provides stable guiding support for the control rod 74 during the rotation of the flange. While maintaining the freedom of movement of the control rod 74, the L-shaped baffle of the present invention eliminates the shaking of the control rod 74 by using the parallel constraint effect of the double horizontal plates. The box-shaped frame formed by the vertical plate connection further enhances the anti-torsion performance, ensuring that the control rod 74 can be accurately positioned every time it is inserted into the jack.

[0050] Furthermore, as Figure 3 shown, the control assembly further includes a limiting hollow column 78 and a limiting rod 79. The limiting hollow column 78 is fixedly arranged on the horizontal plate of the second baffle 762. The control rod 74 passes through the limiting hollow column 78. The limiting rod 79 passes through the control rod 74 horizontally, and its end is lapped on the limiting hollow column 78. An inclined surface 781 is provided on the side wall of the limiting hollow column 78. The inclined surfaces 781 are oppositely arranged, and both ends of the inclined surface 781 are provided with arc-shaped grooves 782.

[0051] The limiting hollow column 78 is a fixed structure for limiting the axial movement range of the control rod 74. Specifically, it can be realized by using a cylindrical structure with a through hole. For example, it is fixed on the horizontal plate of the second baffle 762 by welding. The diameter of its through hole is slightly larger than the outer diameter of the control rod 74 to achieve a clearance fit. The limiting rod 79 is a rigid component that horizontally penetrates the control rod 74. Specifically, it can be realized by using a pin or bolt structure. Its two ends extend out of the control rod 74 and are lapped on the end face of the limiting hollow column 78 to prevent the control rod 74 from disengaging from the limiting hollow column 78. The inclined surface 781 is an inclined surface structure formed on the side wall of the limiting hollow column 78. Specifically, it can be formed by cutting. For example, inclined surfaces with an angle of 30 degrees to 60 degrees with the axis are symmetrically processed on both sides of the hollow column, so that the limiting rod 79 slides along the inclined surface when the control rod 74 moves. The arc-shaped groove 782 is a recessed area provided at both ends of the inclined surface 781. Specifically, it can be formed by milling. For example, a semi-circular groove with a radius of 5 mm to 10 mm is used to accommodate the end of the limiting rod 79 when the control rod 74 moves to the limit position.

[0052] When the operator pushes the control rod 74, the end of the limit rod 79 slides along the inclined surface 781 of the limit hollow column 78, and the control rod 74 moves axially while realizing angle deflection through the inclined surface and the arc groove 782. When the control rod 74 moves until the insertion hole of the second flange 73 is aligned with the insertion hole of the first flange 72, the end of the limit rod 79 falls into the arc groove 782, and the control rod 74 is locked at this time, and the second flange 73 and the first flange 72 remain in a fixed connection state. When it is necessary to adjust the angle of the handrail 1, the limit rod 79 is disengaged from the arc groove 782 and slides along the inclined surface 781 by pulling the control rod 74 upwards. At this time, the second flange 73 can drive the handrail 1 to rotate around the support column 71 until the limit rod 79 enters the next set of arc grooves 782 to complete the positioning.

[0053] The present invention cooperates with the limiting hollow column 78 and the limiting rod 79 to achieve multi-angle adjustment while using the arc groove 782 to form a stable mechanical lock, thereby avoiding the problem of loosening of the control rod 74 due to vibration during operation.

[0054] As a preferred embodiment, Figure 2 As shown, it also includes a hydraulic motor 10 and a differential. The differential is arranged between the tires 2, and the hydraulic motor 10 is drivingly connected to the differential.

[0055] The hydraulic motor 10 is a rotary power device driven by a hydraulic system, and can be implemented by an axial piston hydraulic motor 10, which transmits torque through the pressure change of hydraulic oil, has the characteristics of compact structure and large output torque, and can provide an independent and controllable power source for the rotation of the tire 2. The differential is a mechanical device for coordinating the speed difference of the left and right tires 2, and can be implemented by a planetary gear differential, which automatically adjusts the speed of the left and right tires 2 when turning through the differential action of the gear set, thereby improving the steering flexibility of the equipment in complex terrain and avoiding slippage or steering resistance caused by the speed difference of the tires 2.

[0056] Specifically, the power output end of the hydraulic motor 10 is connected to the input shaft of the differential through a coupling or a transmission shaft, and the two output ends of the differential are connected to the wheel hubs of the left and right tires 2 through half shafts. When the hydraulic system supplies oil to the hydraulic motor 10, the hydraulic motor 10 drives the differential to operate, and the differential distributes power to the left and right tires 2, so that the tires 2 can automatically adjust the speed difference according to the terrain conditions. Since the differential is set between the tires 2, the power transmission path is shortened, the overall transmission structure is more compact, and the independent control of the hydraulic motor 10 realizes stepless adjustment of the travel speed.

[0057] Compared with the prior art, conventional stump crushers usually use a mechanical transmission system, and the power mechanism 4 is directly connected to the transmission mechanism 5, resulting in the space above the chassis 3 being occupied and the operator's vision being blocked. However, this embodiment uses a combination of a hydraulic motor 10 and a differential, which not only reduces the space occupied by the transmission system, but also makes the position layout of the power mechanism 4 more reasonable through the flexibility of the hydraulic drive, further optimizing the operator's vision.

[0058] As a preferred embodiment, Figure 4 As shown, it also includes an electromagnetic clutch 8, an electric control switch 12 and a pull rod 11. The electromagnetic clutch 8 is installed on the transmission mechanism 5, and the pull rod 11 is installed on the handrail 1. The pull rod 11 is controlled and connected to the electromagnetic clutch 8 through the electric control switch 12. When the pull rod 11 is pulled, the electromagnetic clutch 8 connects the power mechanism 4 and the transmission mechanism 5.

[0059] The electromagnetic clutch 8 is a device that uses electromagnetic force to control power transmission. Specifically, it can be implemented by a friction plate or tooth structure, and the transmission mechanism 5 and the power mechanism 4 are connected or separated by current switching. The electric control switch 12 is a trigger element that converts mechanical operation into an electrical signal, such as a travel switch, which is used to convert the displacement of the pull rod 11 into an instruction to control the electromagnetic clutch 8. The pull rod 11 is a rod-shaped operating component with movable characteristics, and a grip portion can be set at its end to trigger the electric control switch 12 through linear displacement.

[0060] When the operator holds the handrail 1 with one hand, he can pull the rod 11 with the other hand. At this time, the displacement of the rod 11 triggers the electric switch 12, and the electric switch 12 sends a control signal to the electromagnetic clutch 8, so that the internal coil of the electromagnetic clutch 8 is energized and generates magnetic force, thereby engaging the output shaft of the power mechanism 4 with the input shaft of the transmission mechanism 5 to achieve power transmission. When the rod 11 is reset, the electric switch 12 is disconnected, the electromagnetic clutch 8 is powered off, and the power transmission is cut off. This process does not require the operator to frequently go back and forth between the power mechanism 4 and the handrail 1, and the power on and off response speed can be adjusted by the power-on time of the electromagnetic clutch 8.

[0061] In some specific embodiments, the electric switch 12 can be integrated into the gripping area of the handrail 1, for example, a spring reset structure is provided at the end of the pull rod 11, and when the pull rod 11 is pulled to a preset stroke, the spring is compressed and triggers the switch contact to close. The installation position of the electromagnetic clutch 8 can be located at the end of the input shaft of the transmission mechanism 5, and is fixedly connected to the shaft end through a flange to shorten the power transmission path.

[0062] This embodiment realizes the rapid on-off control of the power mechanism 4 and the transmission mechanism 5 , and the operator can complete the crushing start and stop operation with one hand while keeping the hand frame 1 held.

[0063] As a preferred embodiment,Figure 1 , Figure 2 and Figure 4 As shown in Figure 1 , Figure 2 and Figure 4 , it further includes a fulcrum wheel 9, which is detachably mounted on the chassis 3 and is located on the opposite side of the crushing mechanism 6.

[0064] The fulcrum wheel 9 is an auxiliary wheel body for supporting the chassis 3, and specifically, a metal wheel body with a rubber tread can be used to achieve it. The detachable installation of the fulcrum wheel 9 is formed by a knob structure and the chassis 3 to form a detachable fixation. The fulcrum wheel 9 is arranged on the opposite side of the chassis 3 and the crushing mechanism 6, and the fulcrum wheel 9 is used to adjust the center of gravity of the equipment during operation to prevent the chassis 3 from tipping due to the operating reaction force of the crushing mechanism 6.

[0065] Specifically, the fulcrum wheel 9 is fixed to the rear of the chassis 3 in a detachable manner. When the equipment operates on soft ground or slopes, the fulcrum wheel 9 can be installed on the chassis 3 to provide additional support. For example, the operator can choose whether to install the fulcrum wheel 9 according to the ground conditions. When the crushing mechanism 6 cuts into the tree root to generate a reverse thrust, the fulcrum wheel 9 and the tire 2 jointly form a three-point support structure to disperse the force on the chassis 3. If it is necessary to move a short distance on flat ground, the fulcrum wheel 9 can be detached to reduce the weight of the equipment, and at this time, the tire 2 alone bears the chassis 3.

[0066] In the description of the present invention, it should be noted that unless otherwise stated, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and 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 to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0067] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims described above.

Claims

1. A hydraulic self-propelled tree root machine, comprising a handrail frame, tires, a chassis, a power mechanism, a transmission mechanism and a crushing mechanism. The tires are arranged in pairs at a preset distance interval. The chassis is mounted on the tires. The power mechanism and the handrail frame are provided on the chassis. The transmission mechanism is disposed on one side of the power mechanism, and the power mechanism is in transmission connection with the transmission mechanism. The end of the transmission mechanism is in transmission connection with the crushing mechanism, characterized in that, A limit rotation control mechanism is arranged inside the handrail frame, and the handrail frame is connected with the chassis in a limit rotation manner.

2. The hydraulic self-propelled tree root machine according to claim 1, wherein The limit rotation control mechanism includes a rotation support assembly and a control assembly. The rotation support assembly is connected to both the chassis and the handrail frame at the same time. The control assembly controls the rotation of the handrail frame relative to the chassis through the limit rotation control assembly.

3. The hydraulic self-propelled tree root machine according to claim 2, characterized in that, The rotation support assembly includes a support column, a first flange, a second flange and a connecting plate. The support column is fixedly arranged on the upper surface of the chassis. The first flange is fixedly arranged on the support column. The second flange is arranged above the first flange and is rotationally connected to the first flange through a bearing. The connecting plate is fixedly arranged on the second flange, and opposite ends of the connecting plate are fixedly connected to the handrail frame at the same time. The control assembly controls the first flange to rotate relative to the second flange to drive the handrail frame to rotate relative to the chassis.

4. The hydraulic self-propelled tree root machine according to claim 3, characterized in that, A plurality of jacks are arranged on both the first flange and the second flange. The jacks are arranged at intervals of a preset distance on the edges of the first flange and the second flange. The control assembly passes through the jacks of the second flange, and realizes the rotation of the second flange relative to the first flange according to whether the control assembly is inserted into the jacks of the first flange.

5. The hydraulic self-propelled tree root machine according to claim 4, characterized in that, The control assembly includes a control rod, a baffle and an elastic member. The baffle is fixedly installed on the second flange. The control rod is movably passed through the jacks of the second flange and the baffle. The elastic member is located between two opposite baffles.

6. The hydraulic self-propelled tree root machine according to claim 5, characterized in that, The baffle includes a first baffle and a second baffle. Both the first baffle and the second baffle are L-shaped. The vertical plates of the first baffle and the second baffle are connected. The horizontal plates of the first baffle and the second baffle are arranged opposite to each other at intervals of a preset distance.

7. The hydraulic self-propelled tree root machine according to claim 6, characterized in that, The control assembly further includes a limit hollow column and a limit rod. The limit hollow column is fixedly arranged on the horizontal plate of the second baffle. The control rod passes through the limit hollow column. The limit rod horizontally passes through the control rod and the end thereof is lapped on the limit hollow column. An inclined surface is arranged on the side wall of the limit hollow column. The inclined surfaces are arranged oppositely, and both ends of the inclined surface are provided with arc grooves.

8. The hydraulic self-propelled tree root machine according to any one of claims 1-7, characterized in that, It further includes a hydraulic motor and a differential. The differential is arranged between the tires. The hydraulic motor is drivingly connected to the differential.

9. The hydraulic self-propelled tree root machine according to any one of claims 1-7, characterized in that, It further includes an electromagnetic clutch, an electric control switch and a pull rod. The electromagnetic clutch is installed on the transmission mechanism. The pull rod is installed on the handrail frame. The pull rod is controllably connected to the electromagnetic clutch through the electric control switch. When the pull rod is pulled, the electromagnetic clutch connects the power mechanism and the transmission mechanism.

10. The hydraulic self-propelled tree root machine according to any one of claims 1-7, characterized in that, It further includes a fulcrum wheel, and the fulcrum wheel is detachably installed on one side of the chassis opposite to the crushing mechanism.

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