CN117378385A

CN117378385A - High-altitude wood cutting vehicle

Info

Publication number: CN117378385A
Application number: CN202311595940.5A
Authority: CN
Inventors: 陈立文; 闫伟峰; 周哲; 薛明; 吴智亮; 刘凯; 谭林林; 杜宏东; 陈刚强
Original assignee: SHANDONG ROADWAY CONSTRUCTION MACHINERY MANUFACTURING CO LTD
Current assignee: SHANDONG ROADWAY CONSTRUCTION MACHINERY MANUFACTURING CO LTD
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-01-12

Abstract

The invention relates to a high-altitude felling vehicle, which belongs to the field of felling vehicles and comprises a vehicle body, a folding telescopic arm and a working head; the folding telescopic arm comprises a first arm, a second arm and a third arm, the third arm is hinged at the front end of the second arm, and the second arm is hinged at the front end of the first arm; the working head comprises a working head rotating frame which is connected with the end part of the folding telescopic arm; the support frame is connected with the working head revolving frame through a T-shaped revolving joint, the T-shaped revolving joint comprises a cross rod and a longitudinal rod, a revolving sleeve I is rotationally connected to the cross rod, the support frame is connected with the longitudinal rod through a revolving support I, and one end of the working head revolving frame is connected with the revolving sleeve I; according to the invention, after the folding telescopic arm lifts the working head to the target approximate position, the working head is rotationally adjusted in multiple dimensions, and the multi-section arm adjustment of the folding telescopic arm is matched, so that the angle adjustment of the working head is more flexible and changeable, and the positions of the grabbing mechanism and the sawing mechanism can be accurately adjusted to implement sawing.

Description

High-altitude wood cutting vehicle

Technical Field

The invention relates to the technical field of felling work vehicles, in particular to a high-altitude felling vehicle.

Background

In city construction work, the greening trees can have potential safety hazards when purifying air and shielding sunlight heat, for example, the growth of branches shields street lamps, the growth of the branches is too close to wires or houses, and the like. To avoid the danger, the greening trees need to be trimmed by a felling machine.

In the prior art felling machine, as disclosed in the utility model patent with the publication number of CN204259479U, a tree pruning integrated operation vehicle is provided, wherein a tree pruning arm, a tree pulverizer, a bin and the like are arranged on an automobile chassis, a mechanical gripper and a circular saw are arranged on a working head of the tree pruning arm, and the tree is pruned from the tree by controlling the expansion and contraction of each hydraulic cylinder and the operation of a motor on the tree pruning arm during operation, and the bin is used for temporarily storing chips.

However, the above-mentioned prior art has the following problems:

firstly, the angle adjustment of the saw in the prior art depends on the hinging relation between the working head bracket and the rotating head and the rotation of the rotating head around the axis of the rotating head, the adjustment angle is limited, and the problem of poor adjustability exists in the high-altitude sawing process of branches;

secondly, when the circular saw structure is used for sawing thick branches, the large enough size is needed, so that the whole size of the saw is large, the whole structure is not compact enough, the whole miniaturization of a product is not facilitated, and the branches with the large size are more easily interfered by side branches when the branches are trimmed and used at high altitudes, so that the saw is not easy to shuttle in gaps of the branches at high altitudes, and the sawing of selected branches is influenced under the condition that the branches are complicated;

Thirdly, the lifting height of the telescopic boom structure is limited, and the space required by the telescopic boom during storage is large, so that further storage and transportation are affected, and the size requirement on a vehicle is high when the telescopic boom structure is particularly used as a vehicle-mounted telescopic boom structure; as shown in the prior art, in order to avoid the working head from interfering with the vehicle head, the vehicle cabin and the like, the telescopic arm structure is arranged at the vehicle roof, which is not beneficial to the stability of the whole vehicle; most importantly, the rotation range of the telescopic arm structure is limited, and flexible adjustment cannot be realized as a movable joint, so that continuous actions of grabbing the sawed branches, then lowering the sawed branches into a carriage on a vehicle and the like are difficult to realize in actual operation, and the operation cannot be smoothly performed.

Disclosure of Invention

The invention provides a high-altitude wood cutting vehicle aiming at the problems in the prior art, and one of the technical problems to be solved is as follows: the angle adjustment of the cutting mechanism is not flexible enough; the second technical problem to be solved is that: the whole structure is not compact enough, is not beneficial to the miniaturization of the whole product, and is not convenient for the shuttle to travel in the complicated branches to reach the target branch position; the third technical problem to be solved is that: the telescopic arms are limited in rotation range and not flexible enough in adjustment, the occupied space after storage is large, and the interference between the telescopic arms or other parts of the vehicle after storage is large, so that the telescopic arms are not beneficial to the installation on the vehicle.

The technical scheme for solving the technical problems is as follows:

the high-altitude wood cutting vehicle is characterized by comprising a vehicle body, a folding telescopic arm and a working head connected to the folding telescopic arm, wherein the bottom of the folding telescopic arm is rotatably connected to a chassis of the vehicle body;

the folding telescopic arm comprises a first arm, a second arm and a third arm, wherein the third arm is of a telescopic arm structure, the third arm is hinged to the front end of the second arm, and the tail end of the second arm is hinged to the front end of the first arm;

a lifting cylinder is connected between the first arm and the second arm and used for controlling the second arm to rotate around a hinge shaft between the second arm and the first arm; a second overturning cylinder is further connected between the second arm and the third arm, one end of the second overturning cylinder is hinged with the second arm, and the other end of the second overturning cylinder is hinged with the third arm and is used for driving the third arm to rotate and overturn around a hinge shaft of the third arm and the second arm;

the working head comprises:

the working head revolving frame is connected to the end part of the folding telescopic arm through a second slewing bearing so that the working head revolving frame can rotate around the axis of the second slewing bearing;

the supporting frame is connected with the working head revolving frame through a T-shaped revolving joint and is used for bearing the grabbing mechanism and the sawing mechanism,

The T-shaped rotary joint comprises a cross rod and a longitudinal rod, a first rotary sleeve is rotatably connected on the cross rod,

the support frame is connected with the longitudinal rod through a slewing bearing one so that the support frame can rotate relative to the longitudinal rod; one end of the working head revolving frame, which is opposite to the folding telescopic arm, is connected with the revolving sleeve I so that the working head revolving frame can rotate relative to the cross rod;

and the first overturning cylinder is connected between the working head revolving frame and the T-shaped revolving joint and is used for driving the working head revolving frame and the cross rod to rotate relatively.

Further, the third arm is hinged to the side of the front end of the second arm through the connecting arm, so that the third arm can be overturned to the side of the second arm when being stored.

Further, the second overturning cylinder is hinged with the third arm through a connecting rod structure, so that the rotation angle between the second arm and the third arm is enlarged, and the lifting of the second overturning cylinder to the third arm is facilitated.

Further, the first overturning cylinder is hinged with the T-shaped rotary joint through a connecting rod structure.

Further, the third arm comprises a first expansion joint, a second expansion joint and a third expansion joint, the second expansion joint is arranged in the first expansion joint in a sliding manner, the third expansion joint is arranged in the second expansion joint in a sliding manner, and the third expansion joint is used for being connected with the working head in a direct or indirect manner; the third arm further comprises an extension arm drive for driving the second telescopic joint and the third telescopic joint to extend or retract simultaneously.

Further, the arm stretching drive comprises a telescopic cylinder and a traction assembly, wherein the telescopic cylinder is connected between the first telescopic joint and the second telescopic joint and is used for driving the second telescopic joint to slide relative to the first telescopic joint; the traction assembly is connected with the first expansion joint, the second expansion joint and the third expansion joint and is used for synchronously and relatively sliding with the third expansion joint and the second expansion joint when the second expansion joint and the first expansion joint relatively slide.

Further, the traction assembly comprises a first guide wheel, a second guide wheel, a first traction piece and a second traction piece, wherein the first guide wheel and the second guide wheel are respectively connected with the front end of the second expansion joint and the rear end of the second expansion joint in a manner of rotating around the axis of the first guide wheel and the second guide wheel; one end of the first traction piece is connected with the front end of the first expansion joint, and the other end of the first traction piece bypasses the first guide wheel and is connected with the rear end of the third expansion joint; one end of the second traction piece is connected with the front end of the first expansion joint, and the other end of the second traction piece bypasses the second guide wheel and is connected with the rear end of the third expansion joint.

Furthermore, the first traction piece and the second traction piece adopt a chain structure or a rope piece.

Further, the third arm is also connected with a pipeline accommodating mechanism for accommodating the pipeline and stretching along with the stretching of the third arm.

Further, the pipeline accommodating mechanism comprises a drag chain, an inner support pipe, an outer support pipe and an outer support pipe sliding frame, one end of the inner support pipe is connected with the third expansion joint, the other end of the inner support pipe is slidably extended into the outer support pipe, the outer support pipe is connected with the second expansion joint and slidably arranged in the outer support pipe sliding frame, and the outer support pipe sliding frame is fixedly connected with the first expansion joint; one end of the drag chain is connected with the first expansion joint, and the other end of the drag chain passes through the outer support tube and is connected with the tail end of the inner support tube.

Further, the sawing mechanism includes:

the branch sawing mechanism sliding frame is connected with the supporting frame in a relatively sliding manner;

the sawing cutter is in a rod-shaped structure and comprises a cutter shaft and cutter teeth arranged on the peripheral surface of the cutter shaft, and two ends of the cutter shaft are rotationally connected with a sliding frame of the branch sawing mechanism;

the sliding frame is driven and is respectively connected with the sliding frame and the supporting frame of the branch cutting and sawing mechanism and used for driving the sliding frame and the supporting frame of the branch cutting and sawing mechanism to slide relatively to provide power for feeding of the saw cutter, and the feeding direction of the saw cutter is perpendicular to the radial direction of the cutter shaft;

the saw cutter is driven and connected with the cutter shaft and used for driving the cutter shaft to rotate around the axis of the cutter shaft.

Further, the saw cutter driving device is arranged at the lower side of the saw cutter and keeps a preset distance with the saw cutter, and the output end of the saw cutter driving device is in transmission connection with one end of the cutter shaft through a transmission mechanism.

Further, the transmission mechanism comprises a driving wheel fixedly connected to the driving output end of the sawing cutter and a driven wheel fixedly connected to one end of the cutter shaft, the driving wheel and the driven wheel are connected with the sliding frame of the tree pruning saw mechanism in a manner of rotating around the axis of the driving wheel and the driven wheel, and the driving wheel is in transmission connection with the driven wheel through a transmission piece.

Further, the driving wheel and the driven wheel adopt a gear structure, a belt wheel structure or a chain wheel structure, and correspondingly, the transmission part adopts a gear transmission structure, a belt transmission structure or a chain transmission structure.

Further, the sliding frame is driven by a hydraulic oil cylinder, a cylinder barrel of the hydraulic oil cylinder is connected with the sliding frame of the tree branch cutting and sawing mechanism, and a telescopic rod of the hydraulic oil cylinder is connected with the supporting frame.

Further, the grabbing mechanism comprises a clamping jaw connected to the supporting frame and a clamping jaw driving device for driving the clamping jaw to conduct grabbing actions.

Further, the clamping jaw comprises a clamping jaw I and a clamping jaw II, wherein the clamping jaw I and the clamping jaw II are oppositely arranged and are respectively hinged on the support frame, and the clamping jaw drive is respectively connected with the clamping jaw I and the clamping jaw II and is used for driving the clamping jaw I and the clamping jaw II to open and close.

Furthermore, the grabbing mechanism further comprises a clamping jaw connecting arm, the middle part of the clamping jaw and the two end parts of the clamping jaw are respectively hinged with the supporting frame, the first end part of the clamping jaw and the middle part of the clamping jaw are respectively hinged with the two ends of the clamping jaw connecting arm, and the two ends of the clamping jaw driving mechanism are respectively hinged with the first end part of the clamping jaw and the supporting frame.

Further, an oil way for communicating the cross rod and the longitudinal rod is arranged in the T-shaped rotary joint, an oil port I communicated with the oil way is arranged on the first rotary sleeve, a second rotary sleeve is rotatably arranged on the longitudinal rod, and an oil port II communicated with the oil way is arranged on the second rotary sleeve.

Further, the vehicle body is also provided with a supporting mechanism for supporting the grabbing mechanism; the supporting mechanism comprises a supporting body and a driving piece for driving the supporting body to rise or fall.

Further, the supporting mechanism further comprises a first supporting rod, a second supporting rod, an upper bracket, a lower bracket, a swing arm and a connecting seat, and the driving piece adopts a telescopic driving piece; the upper bracket and the lower bracket are oppositely arranged, the upper bracket is connected to the lower side of the support body, and the lower bracket and the connecting seat are relatively fixed; the first support rod and the second support rod (3) are arranged in parallel, one ends of the first support rod and the second support rod are respectively hinged with the upper support, the other ends of the first support rod and the second support rod are respectively hinged with the lower support, and the hinged points of the first support rod, the second support rod and the upper support and the lower support are enclosed to form a parallelogram; the first supporting rod is fixedly connected with a swing arm, two ends of the telescopic driving piece are respectively connected with the swing arm and the connecting seat, and the swing arm is used for driving the swing arm to rotate around the hinge point of the first supporting rod and the lower support along with the telescopic driving piece.

Further, a crushing mechanism is further arranged on the vehicle body, the crushing mechanism comprises a bracket, a feeding mechanism, a branch cutting mechanism and a discharging mechanism, the feeding mechanism comprises a lower feeding mechanism, the lower feeding mechanism and the branch cutting mechanism are respectively hinged to the front side and the rear side of the bracket through a hinge shaft A and a hinge shaft B, and the discharging mechanism is arranged on the output side of the branch cutting mechanism; a third overturning cylinder is connected between the lower feeding mechanism and the bracket and used for driving the lower feeding mechanism to overturn around the hinge shaft A to be in a folded or flat state; a fourth overturning cylinder is connected between the branch cutting mechanism and the bracket and used for driving the bracket to carry the feeding mechanism to overturn around the hinge shaft B.

Furthermore, a collecting box is further arranged on the vehicle body and is positioned on the output side of the discharging mechanism.

Furthermore, the working head can be replaced by the following structure:

the working head comprises:

the working frame is fixedly connected with the folding telescopic arm;

the turnover frame is hinged at the front end of the working frame through a hinge shaft C;

the overturning oil cylinder is respectively connected with the overturning frame and the working frame and is used for driving the overturning frame to rotate around the hinge shaft C; wherein the overturning oil cylinder is hinged with the overturning frame preferably through a connecting rod structure;

The swing rotary seat is hinged to the front end of the roll-over stand through a hinge shaft D, and the hinge shaft D and the hinge shaft C are mutually perpendicular;

the swing oil cylinder is respectively connected with the swing rotary seat and the roll-over stand and is used for driving the swing rotary seat to rotate around the hinge shaft D;

and the support frame is connected to the front end of the swing rotary seat through a slewing bearing III and is used for bearing the grabbing mechanism and the sawing mechanism.

The beneficial effects of the invention are as follows:

1. according to the overhead wood cutting vehicle, through the arranged folding telescopic arm and the working head connected with the folding telescopic arm, the working head rotary frame, the support frame, the T-shaped rotary, grabbing mechanisms and the sawing mechanisms are connected on the working head, after the working head is lifted to the target approximate position by the folding telescopic arm, the rotary adjustment of the working head carrying the working head integrally around the two axes of the slewing bearing, the support frame carrying grabbing mechanisms and the sawing mechanisms around the cross rod, the support frame carrying grabbing mechanisms and the sawing mechanisms around the longitudinal rod and other dimensions in the axial direction is realized, and the multi-section arm adjustment of the folding telescopic arm and the external connection rotating structure at the bottom of the multi-section arm are matched, so that the angle adjustment of the working head is more flexible and changeable, and the positions of the grabbing mechanisms and the sawing mechanisms are convenient to accurately adjust so as to implement sawing.

2. The invention further makes the whole structure more compact by the specific structure of the sawing mechanism and the grabbing mechanism and the connection relation of the T-shaped rotary joint and the working head rotary frame, and the product is more miniaturized, and reduces the interference of side branches, thereby being beneficial to the travel of the branch saw in the gap of the high-altitude branches to reach the sawing target position.

3. According to the invention, the connection relation between the sawing mechanism, especially the rod-shaped sawing cutter, the branch saw sliding frame, the supporting frame and the like is further changed compared with the prior art, so that the connection structure between the sawing cutter and the supporting piece and the driving piece of the sawing cutter are changed, both ends of the sawing cutter are connected ends instead of free ends, the supporting frame is kept motionless when sawing operation is carried out, the branch saw sliding frame which is in sliding connection with the supporting frame is utilized to carry out feeding action under the driving of the sliding frame, the feeding direction is perpendicular to the sawing cutter axial direction, the shaking phenomenon caused by the movement of the supporting arm or the movement of the fan-shaped track in the high-altitude sawing cutter cutting process of branches can be effectively avoided, the sawing effect on high-altitude branches is better, and the sawing effect on thick branches can be still achieved, and the application range is wider.

4. According to the invention, the second overturning cylinder is further connected with the second arm and the third arm through the connecting rod structure, and the third arm is hinged to the side of the front end of the second arm through the connecting arm, so that the movable joint of the folding telescopic arm is more flexible, the movable range of the folding telescopic arm is wider, the folding telescopic arm can conveniently and smoothly carry out complete series of actions from grabbing and sawing branches to lowering the branches to a carriage below, and meanwhile, the third arm overturns to the side of the second arm during storage, thereby avoiding the interference of the working head connected with the third arm on other structural components such as the first arm, vehicles and the like, greatly reducing the occupied space after the telescopic arm is stored, and particularly when the folding telescopic arm mechanism is used as a vehicle-mounted folding telescopic arm mechanism, the occupied space after storage is small, and the folding telescopic arm mechanism is convenient for storage and transportation on vehicles.

5. According to the invention, through the structure of the third arm, particularly the connection relation between the three telescopic joints and the telescopic drive, the two telescopic joints can be driven to extend or retract simultaneously by the same power source, the structure is simple, and the operation is more convenient and quicker when the working head is lifted to a preset position by utilizing the folding telescopic arm.

6. The invention further provides a structure of the pipeline containing mechanism and a connection relation between the pipeline containing mechanism and the three expansion joints, and an oil way for communicating the cross rod and the longitudinal rod is arranged in the T-shaped rotary joint and is respectively communicated with the oil port I on the cross rod rotary sleeve and the oil port II on the longitudinal rod rotary sleeve, so that the embedment of the oil way pipeline can be realized, particularly the embedment of the oil way pipeline in the T-shaped rotary joint and the pipeline containing mechanism can be realized, the pipeline containing and the mess can be avoided, the interference on branches caused by the exposure of excessive oil way pipelines can be avoided, and the influence on the rotation, the expansion and the like of working parts can be avoided.

7. According to the invention, the supporting mechanism is arranged on the vehicle body, and the height of the supporting body can be adjusted under the driving of the telescopic driving piece through the arranged supporting body, the upper bracket, the lower bracket, the first supporting rod, the second supporting rod, the swing arm, the telescopic driving piece and the connection relation among the supporting body, so that the supporting body is lifted to be used for fixing the clamping jaw of the working head when the working head of the felling mechanism is required to be fixed, the unstable swing of the working head in the transferring process of the felling mechanism is avoided, and the supporting body is lowered to be free from influencing the rotation of the working arm when the working head is not required to be fixed

8. According to the invention, the sawn branches can be timely crushed through the crushing mechanism arranged on the vehicle body, and meanwhile, the feeding mechanism of the crushing mechanism is arranged into a turnover structure, so that the crushing mechanism can be conveniently and timely retracted when being idle or the vehicle is transported, the occupied space on the vehicle is avoided being large, and the transportation of the vehicle is facilitated.

9. According to the invention, by arranging the working heads comprising the working frame, the roll-over cylinder, the swing rotary seat, the swing cylinder, the support frame and the like in a technical scheme, the rotary motion can be realized by respectively carrying the grabbing mechanism and the sawing mechanism on the support frame and rotating around the three axial directions of the slewing bearing, namely, the rotary motion is realized by carrying the support frame on the swing rotary seat to rotate around the hinging shaft D, the swing rotary seat and the support frame on the roll-over frame to rotate around the hinging shaft C, namely, the turning motion is realized by rotating the support frame around the hinging shaft C, and the like.

Drawings

FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present invention;

fig. 2 is a schematic view of the structure of embodiment 1 of the present invention (excluding the vehicle body);

fig. 3 is a schematic front view of the embodiment 1 of the present invention (without the vehicle body);

fig. 4 is a schematic plan view (excluding the vehicle body) of the embodiment 1 of the present invention in a housed state;

FIG. 5 is a schematic cross-sectional view (excluding the vehicle body) of embodiment 1 of the present invention;

FIG. 6 is a schematic view showing the structure of a working head according to embodiment 1 of the present invention;

FIG. 7 is a schematic view of the T-type swivel joint according to embodiment 1 of the invention;

FIG. 8 is a schematic cross-sectional view of a T-swivel joint according to embodiment 1 of the invention;

fig. 9 is a schematic structural view of a support frame for carrying a grabbing mechanism and a sawing mechanism according to embodiment 1 of the present invention;

FIG. 10 is a schematic cross-sectional view of the sawing mechanism of embodiment 1 of the present invention;

FIG. 11 is another cross-sectional structural schematic view of the sawing mechanism of embodiment 1 of the present invention;

fig. 12 is a schematic structural view of a grasping mechanism according to embodiment 1 of the invention;

FIG. 13 is a schematic view showing the overall structure of embodiment 2 of the present invention;

FIG. 14 is a schematic view of the support mechanism of FIG. 13;

FIG. 15 is a schematic view showing the structure of the supporting mechanism in another state of embodiment 2 of the present invention;

FIG. 16 is a schematic view showing the overall structure of embodiment 4 of the present invention;

FIG. 17 is a schematic view showing the structure of a pulverizing mechanism according to embodiment 4 of the present invention;

FIG. 18 is a schematic cross-sectional view of the pulverizing mechanism of example 4 of the present invention;

FIG. 19 is a schematic view showing another state structure of embodiment 4 of the present invention;

fig. 20 is a schematic view showing the structure of the pulverizing mechanism in the housed state of embodiment 4 of the present invention;

FIG. 21 is a schematic view showing the overall structure of embodiment 5 of the present invention;

FIG. 22 is a schematic view showing the structure of a working head according to embodiment 6 of the present invention;

FIG. 23 is a schematic view showing the construction of a working head according to embodiment 6 of the present invention;

FIG. 24 is a schematic view showing the connection structure of the working head and the folding telescopic arm according to embodiment 6 of the present invention;

in the figure: 100. a hydraulic power tool comprises a working head, a T-shaped rotary joint, 101, a cross rod, 102, a longitudinal rod, 103, a first rotary sleeve, 104, a second rotary sleeve, 105, an oil port I, 106, an oil port II, 107, an annular oil duct I, 108, an oil duct II, 109, an annular oil duct II, 110, an annular groove, 2, a grabbing mechanism, 201, a clamping jaw I, 202, a clamping jaw II, 203, a clamping jaw connecting arm, 204, a clamping jaw driving, 3, a sawing mechanism, 301, a saw blade, 311, a cutter shaft, 312, a cutter tooth, 302, a tree stump mechanism sliding frame, 304, a sliding frame driving, 305, a sawing blade driving, 361, a driving wheel, 362, a driven wheel, 363, a transmission member, 308, a guide plate, 309, a sliding groove, 4, a first turning cylinder, 41, a connecting rod I, 42, a second connecting rod, 5, a working head rotary frame, 61, a rotary support I, 62, a telescopic arm, 7, a support frame, 800, a folding arm, 801, a first arm, 802 and a second arm, 803 third arm, 831, first telescopic joint, 832, second telescopic joint, 833, third telescopic joint, 834, telescopic arm drive, 8341, telescopic cylinder, 8342, guide wheel one, 8343, guide wheel two, 8344, traction element one, 8345, traction element two, 804, lifting cylinder, 805, second tilting cylinder, 806, pipe receiving mechanism, 807, connecting arm, 900, support mechanism, 901, support body, 902, support rod one, 903, support rod two, 904, upper support, 905, lower support, 906, swing arm, 907, telescopic drive, 908, connecting seat, 910. V-shaped support, 911, gear lever, 1000, crushing mechanism, 1001, support, 1002, feeding mechanism, 1201, lower feeding mechanism 1202, upper feeding mechanism, 1021, lower feeding support, 1022, lower feeding roller, 1023, upper feeding support, 1024, upper feeding roller, 1025, lobe, 1003, cutting mechanism, 1031, 1032. top cover, 1033, movable blade holder, 1034, movable blade, 1035, stationary blade, 1036, stationary blade holder, 1004, discharge mechanism, 1041, impeller housing, 1042, discharge impeller, 1043, discharge tube, 1044, discharge port, 1051, third tilt cylinder, 1052, fourth tilt cylinder, 1053, fifth tilt cylinder, 1054, support cylinder, 1061, hinge axis A,1062, hinge axis B,1100, collection box, 1200, hopper, 1301, work frame, 1304, tilt frame, 1341, tilt cylinder, 1305, swing pivot base, 1351, swing cylinder, 1381, hinge axis C,1382, hinge axis D,1391, connecting rod A,1392, connecting rod B.

Detailed Description

The principles and features of the present invention are described below with examples provided for the purpose of illustration only and are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1, 2 and 6, the overhead wood cutting truck of the present embodiment includes a truck body, a folding telescopic arm 800 and a working head 100 connected to the folding telescopic arm 800, wherein the bottom of the folding telescopic arm 800 is rotatably connected to a truck body chassis through a slewing bearing, so that the working flexibility is good;

the working head 100 includes:

the working head revolving frame 5 is connected to the end part of the folding telescopic arm 800 through a second slewing bearing 62, so that the working head revolving frame 5 can rotate around the axis of the second slewing bearing 62;

a support frame 7 connected with the working head revolving frame 5 through a T-shaped revolving joint 1, wherein the support frame 7 is used for bearing the grabbing mechanism 2 and the sawing mechanism 3,

the T-shaped swivel joint 1 comprises a cross rod 101 and a longitudinal rod 102, a swivel sleeve I103 is rotatably connected on the cross rod 101,

the support frame 7 is connected with the longitudinal rod 102 through a slewing bearing 61 so that the support frame 7 can rotate relative to the longitudinal rod 102; one end of the working head revolving frame 5, which is opposite to the folding telescopic arm 800, is connected with the revolving sleeve I103 so that the working head revolving frame 5 can rotate relative to the cross rod 101;

The first overturning cylinder 4 is connected between the working head revolving frame 5 and the T-shaped revolving joint 1 and is used for driving the working head revolving frame 5 and the cross rod 101 to rotate relatively;

the folding telescopic arm 800 comprises a first arm 801, a second arm 802 and a third arm 803, wherein the third arm 803 is of a telescopic arm structure, the third arm 803 is hinged at the front end of the second arm 802, and the tail end of the second arm 802 is hinged at the front end of the first arm 801; a lifting cylinder 804 is connected between the first arm 801 and the second arm 802, and is used for controlling the second arm 802 to rotate around a hinge shaft between the second arm and the first arm 801; a second overturning cylinder 805 is further connected between the second arm 802 and the third arm 803, one end of the second overturning cylinder 805 is hinged to the second arm 802, and the other end of the second overturning cylinder 805 is hinged to the third arm 803 and used for driving the third arm 803 to rotate and overturn around a hinge shaft of the third arm 803 and the second arm 802.

The first tilt cylinder 4, the lift cylinder 804, and the second tilt cylinder 805 of the present embodiment all adopt hydraulic cylinder structures.

In use, the bottom of the first arm 801 is connected to the chassis of the vehicle body via an externally connected rotating member, such as a slewing bearing (the bottom of the first arm 801 is connected to the slewing bearing), so as to implement overall rotational adjustment of the folding telescopic arm 800. With the above-described configuration, the work head 100 can be lifted to a substantially target position by folding the telescopic arm 800. Wherein, the working head 100 is directly or indirectly mounted at the front end of the third arm 803, and the adjustment of the folding telescopic arm 800 is as follows: the angle between the first arm 801 and the second arm 802 is adjusted by the lift cylinder 804, the angle between the second arm 802 and the third arm 803 is adjusted by the second tilt cylinder 805, and then the working head 100 at the front end thereof is brought to the working area by the telescopic arm type third arm 803. Then, the working head revolving frame 5 carries the whole body to rotate around the axial direction of the revolving support II 62, the supporting frame 7 carries the grabbing mechanism 2 and the sawing mechanism 3 to rotate around the axial direction of the transverse rod 101, the supporting frame 7 carries the grabbing mechanism 2 and the sawing mechanism 3 to rotate around the axial direction of the longitudinal rod 102 and other dimensions to adjust the supporting frame 7, and the angle adjustment is more flexible and changeable. After the angle of the support frame 7 is finely adjusted, the branches to be pruned are grabbed by the grabbing mechanism 2, and sawn by the sawing mechanism 3. After sawing, the pruned branches are taken down by the grabbing mechanism 2, so that the pruned branches are prevented from falling freely.

In a preferred embodiment of the present invention, the third arm 803 is hinged to the front end side of the second arm 802 by a connecting arm 807. After the telescopic arm 800 is folded, the third arm 803 may be retracted, as shown in fig. 3 and 4, and a connecting arm 807 for hinging with the second arm 802 and the link structure is provided beside the third arm 803, and the third arm is pushed to rotate around a hinging point between the third arm and the second arm 802 by the second tilting cylinder 805 until the third arm is tilted to the side of the second arm 802, wherein the connecting arm 807 may be used as a part of the third arm 803 or may be used as a connecting component fixedly connected with the third arm 803. So, occupation space after can significantly reducing flexible arm accomodate just avoids producing the interference to first arm, second arm, especially when folding flexible arm mechanism as on-vehicle, occupation space is little after accomodating, is convenient for accomodate on the vehicle and transports.

In addition, the side design of the third arm 803 brought by the connecting arm 807 can realize that the relative position of the third arm 803 and the second arm 802 after being stored in the length direction is controllable, namely, the relative position of the third arm 803 and the second arm 802 after being folded and stored is adjusted by the position of the connecting point of the connecting arm 807 and the third arm 803.

In a preferred embodiment of the present invention, second tilt cylinder 805 is articulated to third arm 803 by a linkage arrangement. The arrangement of the connecting rod structure can realize large-angle overturning of the third arm 803 around the second arm 802, namely, the angle adjusting range between the second arm and the third arm is enlarged, and the lifting of the second overturning cylinder to the third arm is facilitated. In this embodiment, the link structure includes a first link 41 and a second link 42, where one end of the first link 41 is hinged to the second arm 802, one end of the second link 42 is hinged to the third arm 803, and the other end of the first link 41 is hinged to the other end of the second link 42, and is hinged to one end of the second tilt cylinder 805 through a hinge shaft of the first link 41 and the second link 42.

In a preferred embodiment of the present invention, the hinge points of the second arm 802 and the lifting cylinder 804 and the second tilting cylinder 805 are located on the same side of the second arm 802, which is beneficial for greatly adjusting the angle and direction of the telescopic arm.

In a preferred embodiment of the present invention, as shown in fig. 2 and 5, the third arm 803 includes a first telescopic joint 831, a second telescopic joint 832, and a third telescopic joint 833, where the second telescopic joint 832 is slidably disposed inside the first telescopic joint 831, the third telescopic joint 833 is slidably disposed inside the second telescopic joint 832, and the third telescopic joint 833 is used for connecting with a working head. Third arm 803 also includes an arm extension drive 834 for driving second telescopic joint 832 to extend or retract simultaneously with third telescopic joint 833. Specifically, the boom driving 834 includes a telescopic cylinder 8341 and a traction assembly, the telescopic cylinder 8341 in this embodiment adopts a hydraulic cylinder, which is connected between the first telescopic joint 831 and the second telescopic joint 832, and is used for driving the second telescopic joint 832 and the first telescopic joint 831 to slide relatively; the traction assembly is connected with the first telescopic joint 831, the second telescopic joint 832 and the third telescopic joint 833, and is used for synchronously and relatively sliding with the second telescopic joint 832 and the second telescopic joint 832 when the second telescopic joint 832 and the first telescopic joint 831 relatively slide. The traction assembly comprises a first guide wheel 8342, a second guide wheel 8343, a first traction piece 8344 and a second traction piece 8345, wherein the first guide wheel 8342 and the second guide wheel 8343 are respectively connected with the front end of the second expansion joint 832 and the rear end of the second expansion joint 832 in a manner of rotating around the axis of the first guide wheel 8342 and the second guide wheel 8343; one end of a first traction piece 8344 is connected with the front end of the first expansion joint 831, and the other end of the first traction piece 8344 bypasses the first guide wheel 8342 and is connected with the rear end of the third expansion joint 833; one end of the second traction member 8345 is connected with the front end of the first expansion joint 831, and the other end of the second traction member 8345 bypasses the guide wheel second 8343 and is connected with the rear end of the third expansion joint 833. The first traction member 8344 and the second traction member 8345 adopt a chain structure, and in other embodiments, a rope structure can also be adopted. So when telescopic cylinder 8341 drives the relative slip between second telescopic joint 832 and the first telescopic joint 831 in order to flexible, can drive third telescopic joint 833 and the synchronous relative slip of second telescopic joint 832 in order to realize synchronous flexible, two telescopic joints synchronous action of same power supply drive third arm promptly.

In a preferred embodiment of the present invention, in order to avoid the problem of winding, wire clamping, etc. of the hydraulic oil pipeline during the telescopic action of the third arm, as shown in fig. 5, the third arm 803 is further connected to a pipeline receiving mechanism 806 for receiving the pipeline and expanding and contracting along with the telescopic action of the third arm 803. Specifically, the pipeline accommodating mechanism 806 includes a drag chain 861, an inner pipe 862, an outer pipe 863, and an outer pipe sliding frame 864, one end of the inner pipe 862 is connected to the third expansion joint 833, the other end of the inner pipe 862 slidably extends into the outer pipe 863, the outer pipe 863 is connected to the second expansion joint 832 and slidably installed in the outer pipe sliding frame 864, and the outer pipe sliding frame 864 is fixedly connected to the first expansion joint 831; one end of the drag chain 861 is connected with the first telescopic joint 831, and the other end of the drag chain 861 passes through the outer pipe 863 to be connected with the tail end of the inner pipe 862. When the third arm 803 stretches, the pipeline accommodating mechanism 806 is driven to stretch synchronously, so that the pipeline is prevented from being messy and the stretching action is prevented from being influenced.

In a preferred embodiment of the present invention, as shown in fig. 9 to 11, the sawing mechanism 3 comprises:

a branch sawing mechanism sliding frame 302 which is connected with the support frame 7 in a relatively sliding manner;

The saw cutter 301 is in a rod-shaped structure and comprises a cutter shaft 311 and cutter teeth 312 arranged on the peripheral surface of the cutter shaft 311, and two ends of the cutter shaft 311 are rotationally connected with a sliding frame 302 of the tree-branch sawing mechanism;

the sliding frame drive 304 is respectively connected with the sliding frame 302 and the support frame 7 of the branch cutting and sawing mechanism and is used for driving the sliding frame 302 and the support frame 7 of the branch cutting and sawing mechanism to slide relatively to provide power for feeding of the saw cutter, and the feeding direction of the saw cutter is perpendicular to the radial direction of the cutter shaft 311; the sliding frame driving 304 of the embodiment adopts a hydraulic oil cylinder, a cylinder 341 of the hydraulic oil cylinder is connected with the sliding frame 302 of the tree pruning saw mechanism, and a telescopic rod 342 of the hydraulic oil cylinder is connected with the supporting frame 7. The cylinder 341 is preferably arranged beside the sliding frame 302 of the tree-and-branch sawing mechanism in parallel, so that the overall layout is more compact. More preferably, the cylinder 341 and the branch saw slide 302 may be provided as a unitary structure.

The saw blade drive 305, in this embodiment, is a drive motor, which is connected to the arbor 311 for driving the arbor 311 to rotate about its axis.

In this embodiment, the sliding connection structure of the sliding frame 302 and the supporting frame 7 of the tree pruning saw mechanism is as follows: the support frame 7 is fixedly connected with the guide plate 308, the guide plate 308 is arranged on the outer side of the sliding frame 302 of the tree-cutting saw mechanism and the cylinder 341 of the sliding frame driving 304, the cross section of the guide plate 308 is L-shaped, and a rectangular chute 309 for the sliding of the sliding frame 302 of the tree-cutting saw mechanism is formed between the guide plate 308 and the support frame 7, so that the assembly of the guide plate and the sliding frame 302 of the tree-cutting saw mechanism is more compact, and the sliding operation of the sliding frame 302 of the tree-cutting saw mechanism is ensured to be more stable. In addition, in other embodiments, a sliding rail may be directly disposed on the sliding frame 302 of the tree-and-branch sawing mechanism, and correspondingly, the supporting frame 7 is provided with a sliding slot corresponding to the sliding rail; or, a sliding groove is arranged on the side end face of the sliding frame 302 of the branch sawing mechanism, and correspondingly, a sliding rail is arranged on the supporting frame 7 corresponding to the sliding groove. And other connecting structures capable of realizing the relative sliding of the two in the prior art can provide conditions for the relative sliding of the support frame 7 and the sliding frame 302 of the tree-and-branch sawing mechanism, and are all included in the protection scope of the application.

The grabbing mechanism 2 and the sawing mechanism 3 are arranged closely adjacent, and the structure is compact. When the grabbing mechanism 2 grabs the branches to be pruned, the saw cutter driving 305 is started to drive the saw cutter 301 to rotate; the sliding frame driving 304 is started to enable the telescopic rod 342 to extend or retract from the cylinder 341, and because the end part of the telescopic rod 342 is fixed with the supporting frame 7, the cylinder 341 is fixed with the branch saw sliding frame 302, so that under the driving of the sliding frame driving 304, the two branch saw sliding frames 302 can slide forwards or backwards relative to the supporting frame 7, and further the sawing knife 301 connected with the two branch saw sliding frames is driven to approach or depart from branches to be trimmed, the feeding action of sawing work is realized, the feeding direction is mutually perpendicular to the direction of the cutter shaft 311, and the sawing of the branches can be realized by matching with the rotation of the sawing knife 301. Wherein, both ends of saw cut 301 are the link rather than the free end, and the whole branch saw under the user state keeps motionless because of support frame 7, but its inside sliding frame drive 304 drive two branch saw sliding frame relative support frame 7 slides for the direction of feed is perpendicular with saw cut arbor, can effectively avoid the shake phenomenon that the bar saw cut produced in the high altitude saw cuts the branch in-process, and then improves the sawing effect to the high altitude branch, still can reach fine sawing effect when handling thick branch, and application scope is wider.

In a preferred embodiment of the present invention, the saw cutter driving device 305 is disposed at the lower side of the saw cutter 301 and a preset distance is left between the saw cutter driving device and the saw cutter 301, and an output end of the saw cutter driving device 305 is in transmission connection with one end of the cutter shaft 311 through a transmission mechanism. The miniature design is beneficial to the travel of the branch saw in the gap of the high-altitude branch, and meanwhile, a yielding space is provided for the sawn branch. In this embodiment, the transmission mechanism includes a driving wheel 361 fixedly connected to the output end of the saw cutter driving 305 and a driven wheel 362 fixedly connected to one end of the cutter shaft 311, where the driving wheel 361 and the driven wheel 362 are connected to the sliding frame 302 of the tree pruning saw mechanism in a manner of being rotatable around the axis thereof, the driving wheel 361 is fixedly connected to the output end of the saw cutter driving 305 through a spline, and the driving wheel 361 is connected to the driven wheel 362 in a transmission manner through a transmission piece 363.

In a preferred embodiment of the present invention, the driving wheel 361 and the driven wheel 362 are gear structures, and accordingly, the transmission member 363 is gear transmission structures. When the output shaft of the saw cutter driving 305 rotates, the plurality of gears are driven to engage and drive, and then the saw cutter 301 is driven to rotate, and at this time, the branch saw sliding frame 302 covered outside the transmission mechanism forms a gear box structure. Specifically, the driving gear and the driven gear are respectively connected with the branch saw sliding frame 302 in a manner of rotating around the axis thereof through bearings, the output ends of the driving gear and the saw cutter driving 305 are fixedly connected through splines, the driving gear and the driven gear are connected through a plurality of gears meshed with each other, as shown in fig. 9, the gears are sequentially meshed and connected in the vertical direction, and each gear is connected with the branch saw sliding frame 302 in a manner of rotating around the axis thereof through bearings. The device has the advantages that the transmission stability is good, and the plurality of meshed gears can keep a certain distance between the cutter shaft 311 and the saw cutter driving 305, so that a yielding space is provided for the sawing process of thicker branches.

In a preferred embodiment of the present invention, the other end of the cutter shaft 311 away from the driven wheel 362 is connected to the sliding frame 302 of the tree-cutting mechanism through a bearing block 310, and the bearing block 310 is detachably connected to the sliding frame 302 of the tree-cutting mechanism.

In a preferred embodiment of the present invention, the transmission mechanism is hidden in the branch saw sliding frame 302, which is beneficial to miniaturization of products on one hand, and can prevent sundries from falling into the transmission mechanism to cause jamming in the process of sawing branches on the other hand.

In a preferred embodiment of the present invention, the driving wheel 361 and the driven wheel 362 may also have a pulley structure (e.g., a synchronous pulley) or a sprocket structure, and accordingly, the transmission member 363 may have a belt transmission structure (e.g., a synchronous belt) or a chain transmission structure (e.g., a chain).

In a preferred embodiment of the present invention, as shown in fig. 12, the gripping mechanism 2 includes a gripping jaw connected to the supporting frame 7 and a jaw driving device 204 for driving the gripping jaw to perform a gripping action. Specifically, the clamping jaw comprises a clamping jaw I201 and a clamping jaw II 202, the clamping jaw I201 and the clamping jaw II 202 are oppositely arranged and are respectively hinged on the supporting frame 7, and a clamping jaw driving 204 is respectively connected with the clamping jaw I201 and the clamping jaw II 202 and is used for driving the clamping jaw I201 and the clamping jaw II 202 to open and close. The grabbing mechanism 2 further comprises a clamping jaw connecting arm 203, the middle part of the clamping jaw I201 and the end part of the clamping jaw II 202 are respectively hinged with the supporting frame 7, the end part of the clamping jaw I201 and the middle part of the clamping jaw II 202 are respectively hinged with the two ends of the clamping jaw connecting arm 203, and the two ends of the clamping jaw driving 204 are respectively hinged with the end part of the clamping jaw I201 and the supporting frame 7. In operation, the first clamping jaw 201 and the second clamping jaw 202 are controlled to open and close by the telescopic action of the clamping jaw drive 204, so as to perform grabbing and releasing. The device has the advantages of large openable angle and capability of grabbing various branches with different thickness.

In a preferred embodiment of the present invention, since a plurality of hydraulic oil components are adopted in the integral structure, in order to avoid the interference of the arranged excessive oil pipeline on branches and the influence on the rotation process of components such as a working head turret, a supporting frame and the like, an oil path for communicating a transverse rod 101 and a longitudinal rod 102 is arranged in the T-shaped rotary joint 1, as shown in fig. 7 and 8, an oil port 105 communicated with the oil path is arranged on the first rotary sleeve 103, a second rotary sleeve 104 is rotatably arranged on the longitudinal rod 102, and an oil port 106 communicated with the oil path is arranged on the second rotary sleeve 104. Specifically, the oil path includes an oil passage 108 penetrating through the cross bar and the vertical bar, an annular oil passage I107 formed between the peripheral surface of the cross bar 101 and the first rotary sleeve 103, and an annular oil passage II 109 formed between the peripheral surface of the vertical bar 102 and the inner wall of the second rotary sleeve 104, where the annular oil passage I107, the oil passage 108, and the annular oil passage II 109 are sequentially communicated and respectively communicated with the first oil port 105 and the second oil port 106. The annular oil passage one 107 corresponding to one of the first revolution sleeves 103 and the annular oil passage corresponding to the other one of the first revolution sleeves 103 may be designed to be independent of each other.

In this embodiment, the first annular oil passage 107 and the second annular oil passage 109 are provided as follows: the circumference of the cross bar 101 is provided with a ring groove 110, and an annular oil duct I107 is formed between the ring groove 110 and the inner wall of the rotary sleeve I103; the circumferential surface of the vertical rod 102 is provided with a ring groove 110, and a second annular oil passage 109 is formed between the ring groove 110 and the inner wall of the second rotary sleeve 104. In addition, in other embodiments, the ring groove structure may also be formed on the inner wall of the rotary sleeve, so that a corresponding annular oil passage is formed between the inner wall of the rotary sleeve and the peripheral surface of the corresponding cross bar or the corresponding longitudinal bar.

Preferably, the first oil port 105 and the second oil port 106 are provided with a plurality of oil ports, and each oil port is independently communicated with the corresponding first annular oil passage 107 and the corresponding second annular oil passage 109 respectively so as to realize independent oil passing of each oil path.

In a preferred embodiment of the present invention, the first overturning cylinder 4 is hinged to the T-shaped swivel joint 1 through a connecting rod structure, which can expand the angular range of the rotation of the working head turret 5 around the cross bar 101, and is beneficial to simplifying the adjustment process, for example, on the premise of realizing the same angular adjustment, the larger the rotation angle of the working head turret 5 around the cross bar 101, the rotation of the second slewing bearing 62 can be reduced to a certain extent. As shown in fig. 5, in this embodiment, one end of the first link 41 is hinged to the head turret 5, one end of the second link 42 is hinged to the T-turn joint 1, and the other end of the first link 41 is hinged to the other end of the second link 42 and to the first tilt cylinder 4 at the hinge.

In another embodiment of the present invention, the connecting arm 807 may be connected at an end position or a non-end position of the third arm 803 as appropriate. For example, when the third arm 803 is long, the connecting arm 807 may be selectively connected to the non-end portion of the third arm 803, so that when the third arm 803 is turned to the side of the second arm 802, one end of the third arm 803, which is close to the first telescopic joint 831, protrudes forward from the front end of the second arm 802 by a preset distance, as shown in fig. 2 and 3, it can be avoided that the working head at the end of the third arm extends too far, so that the overall structure of the telescopic arm is larger, and the storage of the telescopic arm is affected, or the telescopic arm is more suitable for the vehicle length situation.

Example 2

On the basis of any one of the above embodiments, the body of the overhead lumber truck of the present embodiment is further provided with a supporting mechanism 900 for supporting the grabbing mechanism 2, as shown in fig. 1 and fig. 13 to fig. 15; the supporting mechanism 900 includes a supporting body 901 and a driving member for driving the supporting body 901 to rise or fall. When the overhead wood cutting truck is transported, the supporting body 901 is lifted to support the grabbing mechanism 2 on the working head 100 so as to fix the working head 100 and avoid shaking in the transportation process; when the working head performs the branch sawing operation, the supporting body 901 is put down, so that the actions such as rotation of the working arm and the like are prevented from being influenced.

In this embodiment, the supporting mechanism 900 includes a supporting body 901, a first supporting rod 902, a second supporting rod 903, an upper supporting rod 904, a lower supporting rod 905, a swing arm 906, a telescopic driving member 907, and a connecting base 908, where the upper supporting rod 904 is opposite to the lower supporting rod 905, the upper supporting rod 904 is connected to the lower side of the supporting body 901, and the lower supporting rod 905 is opposite to the connecting base 908; the first support rod 902 and the second support rod 903 are arranged in parallel, one ends of the first support rod 902 and the second support rod 903 are respectively hinged with the upper support 904, the other ends of the first support rod 902 and the second support rod 903 are respectively hinged with the lower support 905, and the hinge points of the first support rod 902, the second support rod 903 and the upper support 904 and the lower support 905 are enclosed to form a parallelogram, as shown in fig. 2; the first support rod 902 is fixedly connected with a swing arm 906, two ends of the telescopic driving member 907 are respectively connected with the swing arm 906 and the connecting seat 908, the telescopic driving member 907 in this embodiment adopts an electric push rod, one end of the electric push rod is hinged with the connecting seat 908, and the other end of the electric push rod is hinged with the swing arm 906, so that the swing arm 906 is driven to rotate along with the telescopic driving member 907 to drive the first support rod 902 to rotate around the hinge point of the lower support 905. In other embodiments, the hydraulic cylinder or the air cylinder can also be used in the prior art.

The support body 901 of this embodiment of the logging mechanism is fixedly connected with the upper bracket 904, the circumferential surface of the support body 901 is of an arc surface structure, the support body 901 in this embodiment is a horizontal support tube, and clamping and fixing of clamping jaws of the logging mechanism are facilitated. In other embodiments, the support 901 may also be in a column-type structure.

In a preferred embodiment of the present invention, on the basis of the above embodiment, the support mechanism of the logging mechanism further includes a V-shaped support frame 910 for supporting the folding telescopic arm 800, and a stop lever 911 for limiting the folding telescopic arm 800 is further provided at a side of the V-shaped support frame 910, and the two stop levers 911 limit two sides of the support arm 13. V type support frame 910 and support body 901 combined action are used for supporting folding telescopic boom 800 and the epaxial mechanism 2 that snatchs of work respectively to support and fix on-vehicle felling relevant part when the vehicle is transported, guarantee the stability of transportation process.

When the felling mechanism does not work or needs to be transported, the first support rod 902 and the second support rod 903 are vertical, and the clamping jaw 14 clamps the support body 901 at the moment, so that the problem that a working head of the felling mechanism shakes in the transportation process is avoided. When the felling mechanism works normally, the telescopic driving piece 907 is started to retract on the basis of the structure shown in fig. 14, and then the swing arm 906 rotates around the hinge point of the first support rod 902 and the lower support 905 in the anticlockwise direction shown in fig. 14, so as to reduce the height of the support body 901 until the support mechanism is in the state shown in fig. 15, so that the influence of the first support rod 902, the second support rod 903 and the support body 901 on the working state of the support arm of the felling mechanism is avoided. The whole realization is when the work head of the mechanism of logging is required to be fixed lifts up the support body 901, and when the work head is not required to be fixed then falls down the support body 901 to work such as rotation that does not influence the work arm.

In a preferred embodiment of the present invention, the hinge point of the first support rod 902 and the lower support 905 is lower than the hinge point of the second support rod 903 and the lower support 905, so that the first support rod 902 and the second support rod 903 can be driven by the telescopic driving member 907 to be in a state of being on one side, and can be rotated to be horizontal, as shown in fig. 15, so as to reduce the height of the support 901.

Example 3

On the basis of the above embodiment, the body of the overhead wood cutting vehicle of the present embodiment is further provided with a vehicle bucket 1200, as shown in fig. 1, when the sawing mechanism 3 saws off the branches, the grabbing mechanism 2 takes down the pruned branches, and the grabbing mechanism is controlled to be lowered by the folding telescopic arm 800, so that some pruned branches are placed in the vehicle bucket 1200, thereby facilitating centralized management; or some truck tools or the like may be placed by using the hopper 1200.

Example 4

In addition to the above embodiment 1 or 2, as shown in fig. 16, a pulverizing mechanism 1000 is further provided on the body of the overhead wood cutting vehicle of this embodiment, for pulverizing the trimmed branches at the operation site.

Specifically, as shown in fig. 17-18, the crushing mechanism 1000 includes a bracket 1001, a feeding mechanism 1002, a pruning mechanism 1003, and a discharging mechanism 1004, where the feeding mechanism 1002 includes a lower feeding mechanism 1201, the lower feeding mechanism 1201 and the pruning mechanism 1003 are hinged to the front and rear sides of the bracket 1001 through a hinge axis a1061 and a hinge axis B1062, respectively, and the discharging mechanism 1004 is disposed on the output side of the pruning mechanism 1003; a third overturning cylinder 1051 is connected between the lower feeding mechanism 1201 and the bracket 1001, and is used for driving the lower feeding mechanism 1201 to overturn around the hinge axis A1061 to be in a folded or flat state; a fourth overturning cylinder 1052 is connected between the pruning mechanism 1003 and the bracket 1001 and is used for driving the bracket 1001 to overturn the feeding mechanism 1002 around the hinge axis B1062. The third tilt cylinder 1051 and the fourth tilt cylinder 1052 of the present embodiment each use a hydraulic cylinder.

When the device works, the lower feeding mechanism 1201 is in a flat state, the outer edge of the lower feeding mechanism 1201 protrudes out of the body of the vehicle, the pruned branches are sent into the lower feeding mechanism 1201 by the grabbing mechanism 2 on the folding telescopic arm 800 driving the working head, then are sent to the branch cutting mechanism 1003 for crushing treatment, and the crushed branches are discharged through the discharging mechanism 1004. When the equipment is idle or the overhead wood cutting vehicle needs to be transported, the third overturning cylinder 1051 drives the lower feeding mechanism 1201 to overturn to be in a folded state around the hinge shaft A1061, as shown in fig. 19 and 20, and at the moment, the lower feeding mechanism 1201 overturns to be in a vertical state, so that the occupied space on the vehicle body is greatly reduced, the lower feeding mechanism 1201 is converged within the outer edge of the vehicle body, and the transportation of the vehicle is facilitated.

In a preferred embodiment of the present invention, the lower feeding mechanism 1201 includes a lower feeding bracket 1021 and a lower feeding roller 1022 rotatably connected to the lower feeding bracket 1021, and the lower feeding bracket 1021 is hinged to the bracket 1001. In this embodiment, the lower feeding roller 1022 can be driven by an external force to perform a rotational motion, and the driving structure is the prior art and will not be described herein. One end of the third overturning cylinder 1051 is hinged with the lower feeding bracket 1021, and the other end of the third overturning cylinder 1051 is hinged with the bracket 1001 so as to drive the lower feeding bracket 1021 to carry the lower feeding roller 1022 to overturn and store, and branches are placed on the lower feeding roller 1022 so as to be fed into the branch cutting mechanism 1003. Preferably, the lower feed roll 1022 has teeth 1025 on its surface to increase the ability to transport wood.

In a preferred embodiment of the present invention, the feeding mechanism 1002 includes, in addition to the lower feeding mechanism 1201, an upper feeding mechanism 1202 located above the lower feeding mechanism 1201, where the upper feeding mechanism 1202 includes an upper feeding bracket 1023 and an upper feeding roller 1024 rotatably connected to the upper feeding bracket 1023, and the lower feeding roller 1022 can be driven by an external force to perform a rotational motion, and its driving structure is not described in detail herein. The upper feeding bracket 1023 is hinged with the pruning mechanism 1003 through a hinge shaft B1062 to form a floating structure relative to the lower feeding mechanism 1201, a supporting cylinder 1054 is connected between the upper feeding bracket 1023 and the bracket 1001, and the supporting cylinder 1054 adopts a hydraulic cylinder. In use, timber is placed on the lower feed roller 1022, and the upper feed roller 1024 and lower feed roller 1022 cooperate to feed timber into the cutting mechanism 1003. Preferably, the upper feed roll 1024 has teeth 1025 on its surface to increase the ability to transport wood.

Wherein, the floating structural design of the upper feeding mechanism 1202 can make it suitable for branches with different thickness: when conveying thinner branches, the upper feeding bracket 1023 can rotate around the hinge shaft of the upper feeding bracket and the branch cutting mechanism 1003 to fall under the action of external force or by utilizing the self gravity, and is pressed on wood; when conveying thicker branches, the upper feed brackets 1023 may be lifted upward by the support cylinders 1054 to enable the transport of wood through the space between the upper feed rolls 1024 and the lower feed rolls 1022. When being stored, the upper feeding bracket 1023 can fall towards the branch cutting mechanism 1003 under the action of self gravity, and then the third overturning cylinder 1051 is utilized to drive the lower feeding mechanism 1201 to overturn to be in a folded state around the hinge shaft A1061.

In a preferred embodiment of the present invention, the pruning mechanism 1003 includes a pruning frame 1031 and a cutter structure provided inside the pruning frame 1031, and one end of the fourth tilting cylinder 1052 is hinged to the pruning frame 1031 and the other end of the fourth tilting cylinder 1052 is hinged to the support 1001. When maintenance or replacement of the cutter mechanism is required, the fourth tilting cylinder 1052 may be used to drive the carriage 1001 to tilt the feeding mechanism 1002 about the hinge axis B1062 in a clockwise direction as viewed in fig. 18 until the cutter structure inside the branch frame 1031 is exposed, so as to facilitate replacement and maintenance operations of the cutter structure via the input side.

In a preferred embodiment of the present invention, the pruning mechanism 1003 further includes a top cover 1032 hinged to the pruning frame 1031 for covering the cutter structure, a fifth overturning cylinder 1053 for driving the top cover 1032 to overturn around its hinge axis (which may be the same as the hinge axis B1062) with the pruning frame 1031 is connected between the top cover 1032 and the pruning frame 1031, and the fifth overturning cylinder 1053 adopts a hydraulic cylinder. When the cutter mechanism needs to be repaired or replaced, the top cover 1032 can be driven by the fifth turning cylinder 1053 to turn in the anticlockwise direction as shown in fig. 18 until the cutter structure inside the branch frame 1031 is exposed, so that the replacement and repair operation of the cutter structure can be conveniently performed through the top.

In a preferred embodiment of the present invention, the cutter structure includes a movable cutter holder 1033, and a movable cutter 1034 and a fixed cutter 1035 that are mutually matched, the movable cutter holder 1033 is rotatably connected with the branch cutting frame 1031, the movable cutter 1034 is connected on the peripheral surface of the movable cutter holder 1033, and the fixed cutter 1035 is located on the peripheral side of the movable cutter holder 1033 and is relatively fixed with the branch cutting frame 1031 through a fixed cutter holder 1036. The rotating moving knife 1034 cooperates with the fixed stationary knife 1035 for slicing or shredding the timber as the timber is conveyed into the pruning rack 1031.

In a preferred embodiment of the present invention, the discharge mechanism 1004 may be a top-casting discharge structure, which may further reduce the occupied area, and includes an impeller housing 1041 and a discharge impeller 1042 rotatably mounted in the impeller housing 1041, where a discharge pipe 1043 is disposed on an output side of the impeller housing 1041, and a discharge port 1044 is disposed at an end of the discharge pipe 1043. The shredded wood is conveyed to a discharge pipe 1043 by a discharge impeller 1042 and discharged through a discharge port 1044.

Example 5

On the basis of embodiment 4, as shown in fig. 21, a collecting box 1100 is further disposed on the body of the overhead wood harvester according to this embodiment, and an inlet of the collecting box 1100 is located at an output side of the discharging mechanism 1004, so as to collect and centrally manage the wood discharged after the crushing by the crushing mechanism 1000, and the crushed wood discharged from the discharging port 1044 may be directly sent to the collecting box 1100 for collection.

Example 6

On the basis of any of the above embodiments, the working head structure can be replaced by the working head of this embodiment, and other structural features are the same as those of the above embodiments. As shown in fig. 22 and 23, the working head 100 of the present embodiment includes:

a working frame 1301 fixedly connected to the folding telescopic arm 800;

a roll-over stand 1304 hinged to the front end of the work frame 1301 by a hinge axis C1381;

a roll-over cylinder 1341 connected to the roll-over stand 1304 and the work frame 1301, respectively, for driving the roll-over stand 1304 to rotate about the hinge axis C1381; the turning cylinder 1341 is preferably hinged with the turning frame 1304 through a connecting rod structure;

a swing rotary base 1305 hinged to the front end of the roll-over stand 1304 through a hinge axis D1382, the hinge axis D1382 being perpendicular to the hinge axis C1381;

a swing cylinder 1351 connected to the swing turret 1305 and the roll-over stand 1304, respectively, for driving the swing turret 1305 to rotate about a hinge axis D1382;

and a support frame 7 connected to the front end of the swing turret 1305 through a third slewing bearing 1306, the support frame being used for carrying the grabbing mechanism 2 and the sawing mechanism 3.

Through the design of the structure of the working head 100 in this embodiment, the whole working head can realize the rotation adjustment of multiple dimensions such as carrying the grabbing mechanism 2 and the sawing mechanism 3 on the support frame 7, rotating around the rotation support three 1306 to implement the rotation motion, carrying the support frame 7 on the swinging rotary seat 1305 to rotate around the hinge axis D1382 to implement the swinging motion, carrying the swinging rotary seat 1305 on the tilting frame 1304, and carrying the support frame 7 to rotate around the hinge axis C1381 to implement the tilting motion, so that the angle adjustment is more flexible and changeable. After the angle is adjusted, the grabbing mechanism is used for grabbing the branches to be pruned, and the sawing mechanism is used for sawing the branches.

In a preferred embodiment of the present invention, the turning cylinder 1341 is hinged to the turning frame 1304 through a link structure, so as to implement that the turning cylinder 1341 drives the turning frame 1304 to perform a large-angle turning around the hinge axis C1381. In this embodiment, one end of the link a1391 is hinged to the working frame 1301, one end of the link B1392 is hinged to the roll-over frame 4, the other end of the link a1391 is hinged to the other end of the link B1392, and is hinged to the telescopic rod of the roll-over cylinder 1341 through a hinge shaft of the two, and the cylinder body of the roll-over cylinder 1341 is hinged to the working frame 1301.

Claims

1. The high-altitude wood cutting vehicle is characterized by comprising a vehicle body, a folding telescopic arm (800) and a working head (100) connected to the folding telescopic arm (800), wherein the bottom of the folding telescopic arm (800) is rotatably connected to a chassis of the vehicle body;

the folding telescopic arm (800) comprises a first arm (801), a second arm (802) and a third arm (803), wherein the third arm (803) is of a telescopic arm structure, the third arm (803) is hinged at the front end of the second arm (802), and the tail end of the second arm (802) is hinged at the front end of the first arm (801);

a lifting cylinder (804) is connected between the first arm (801) and the second arm (802) and is used for controlling the second arm (802) to rotate around a hinge shaft between the second arm and the first arm (801);

A second overturning cylinder (805) is further connected between the second arm (802) and the third arm (803), one end of the second overturning cylinder (805) is hinged with the second arm (802), and the other end of the second overturning cylinder (805) is hinged with the third arm (803) and is used for driving the third arm (803) to rotate and overturn around a hinge shaft of the third arm and the second arm (802);

the working head (100) comprises:

the working head revolving frame (5) is connected to the end part of the folding telescopic arm (800) through a second slewing bearing (62) so that the working head revolving frame (5) can rotate around the axis of the second slewing bearing (62);

the support frame (7) is connected with the working head revolving frame (5) through a T-shaped revolving joint, and the support frame (7) is used for bearing the grabbing mechanism (2) and the sawing mechanism (3);

the T-shaped rotary joint (1) comprises a cross rod (101) and a longitudinal rod (102), and a first rotary sleeve (103) is rotatably connected to the cross rod (101);

the support frame (7) is connected with the longitudinal rod (102) through a slewing bearing I (61) so that the support frame (7) can rotate relative to the longitudinal rod (102); one end of the working head revolving frame (5) relative to the folding telescopic arm (800) is connected with the first revolving sleeve (103) so that the working head revolving frame (5) can rotate relative to the cross rod (101);

and the first overturning cylinder (4), the first overturning cylinder (4) is connected between the working head revolving frame (5) and the T-shaped revolving joint (1) and is used for driving the working head revolving frame (5) and the cross rod (101) to rotate relatively.

2. The overhead lumber truck according to claim 1, wherein the third arm (803) is hinged by a connecting arm (807) to the front end side of the second arm (802).

3. The overhead lumber truck according to claim 1, wherein the second tilting cylinder (805) is hinged to the third arm (803) by a link structure.

4. The overhead lumber truck according to claim 1, wherein the first overturning cylinder (4) is hinged with the T-shaped swivel joint (1) through a connecting rod structure.

5. The overhead wood-cutting truck according to claim 1, wherein the third arm (803) comprises a first telescopic joint (831), a second telescopic joint (832) and a third telescopic joint (833), the second telescopic joint (832) is slidingly arranged inside the first telescopic joint (831), and the third telescopic joint (833) is slidingly arranged inside the second telescopic joint (832); the third arm (803) further comprises an extension arm drive (834) for driving the second telescopic joint (832) to extend or retract simultaneously with the third telescopic joint (833).

6. The overhead lumber truck as claimed in claim 5, wherein the boom drive (834) comprises a telescopic cylinder (8341) and a traction assembly, the telescopic cylinder (8341) being connected between the first telescopic joint (831) and the second telescopic joint (832) for driving the second telescopic joint (832) to slide relative to the first telescopic joint (831); the traction component is connected with the first expansion joint (831), the second expansion joint (832) and the third expansion joint (833) and is used for synchronously and relatively sliding with the second expansion joint (832) and the first expansion joint (831) when the second expansion joint (832) and the first expansion joint (831) relatively slide.

7. The overhead harvester of claim 6, wherein the traction assembly comprises a first guide wheel (8342), a second guide wheel (8343), a first traction member (8344) and a second traction member (8345), and the first guide wheel (8342) and the second guide wheel (8343) are respectively connected to the front end of the second expansion joint (832) and the rear end of the second expansion joint (832) in a manner of being rotatable around the axis thereof; one end of a first traction piece (8344) is connected with the front end of the first expansion joint (831), and the other end of the first traction piece (8344) bypasses the first guide wheel (8342) and is connected with the rear end of the third expansion joint (833); one end of a second traction piece (8345) is connected with the front end of the first expansion joint (831), and the other end of the second traction piece (8345) bypasses the guide wheel second (8343) and is connected with the rear end of the third expansion joint (833).

8. The overhead lumber truck according to claim 5, wherein the third arm (803) is further connected to a pipeline receiving mechanism (806) for receiving a pipeline and expanding and contracting with the expansion and contraction of the third arm (803);

the pipeline accommodating mechanism (806) comprises a drag chain (861), an inner pipe support (862), an outer pipe support (863) and an outer pipe support sliding frame (864), one end of the inner pipe support (862) is connected with a third telescopic joint (833), the other end of the inner pipe support (862) is slidably extended into the outer pipe support (863), the outer pipe support (863) is connected with a second telescopic joint (832) and slidably arranged in the outer pipe support sliding frame (864), and the outer pipe support sliding frame (864) is fixedly connected with the first telescopic joint (831); one end of a drag chain (861) is connected with the first telescopic joint (831), and the other end of the drag chain (861) passes through the outer support tube (863) to be connected with the tail end of the inner support tube (862).

9. Overhead wood cutting truck according to claim 1, characterized in that the sawing mechanism (3) comprises

The branch sawing mechanism sliding frame (302) is connected with the supporting frame (7) in a relatively sliding manner;

the saw cutter (301) is of a rod-shaped structure and comprises a cutter shaft (311) and cutter teeth (312) arranged on the peripheral surface of the cutter shaft (311), and two ends of the cutter shaft (311) are rotationally connected with the sliding frame (302) of the tree-branch sawing mechanism;

the sliding frame drive (304) is respectively connected with the sliding frame (302) and the supporting frame (7) of the branch cutting mechanism and is used for driving the sliding frame (302) and the supporting frame (7) of the branch cutting mechanism to slide relatively so as to provide power for feeding of the saw cutter, and the feeding direction of the saw cutter is perpendicular to the radial direction of the cutter shaft (311);

and the saw cutter driving device (305) is connected with the cutter shaft (311) and is used for driving the cutter shaft (311) to rotate around the axis of the cutter shaft.

10. The overhead wood cutting vehicle according to claim 9, wherein the saw cutter drive (305) is arranged at the lower side of the saw cutter (301) and is spaced from the saw cutter (301) by a preset distance, and an output end of the saw cutter drive (305) is in transmission connection with one end of the cutter shaft (311) through a transmission mechanism.

11. The overhead sawing machine according to claim 10 wherein the transmission mechanism comprises a driving wheel (361) fixedly connected to the output end of the sawing blade driving unit (305) and a driven wheel (362) fixedly connected to one end of the cutter shaft (311), the driving wheel (361) and the driven wheel (362) are rotatably connected to the sliding frame (302) of the tree sawing mechanism around the axis thereof, and the driving wheel (361) is in transmission connection with the driven wheel (362) through a transmission member (363).

12. Overhead harvesting vehicle according to claim 1, wherein the gripping means (2) comprise gripping jaws connected to the support frame (7) and a jaw drive (204) for driving the gripping jaws to perform a gripping action.

13. The overhead wood cutting vehicle according to claim 12, wherein the clamping jaw comprises a clamping jaw one (201) and a clamping jaw two (202), the clamping jaw one (201) and the clamping jaw two (202) are oppositely arranged and are respectively hinged on the supporting frame (7), and the clamping jaw driving device (204) is respectively connected with the clamping jaw one (201) and the clamping jaw two (202) and is used for driving the clamping jaw one (201) and the clamping jaw two (202) to open and close.

14. The overhead wood cutting truck according to claim 13, wherein the grabbing mechanism (2) further comprises a clamping jaw connecting arm (203), the middle part of the clamping jaw one (201) and the end part of the clamping jaw two (202) are respectively hinged with the supporting frame (7), the end part of the clamping jaw one (201) and the middle part of the clamping jaw two (202) are respectively hinged with two ends of the clamping jaw connecting arm (203), and two ends of the clamping jaw driving mechanism (204) are respectively hinged with the end part of the clamping jaw one (201) and the supporting frame (7).

15. The overhead wood cutting vehicle according to claim 1, wherein an oil way for communicating the cross rod (101) and the vertical rod (102) is arranged in the T-shaped rotary joint (1), an oil port I (105) communicated with the oil way is arranged on the rotary sleeve I (103), a rotary sleeve II (104) is rotatably arranged on the vertical rod (102), and an oil port II (106) communicated with the oil way is arranged on the rotary sleeve II (104).

16. The overhead lumber cutting truck according to claim 1, wherein a supporting mechanism (900) for supporting the grasping mechanism is further provided on the truck body; the supporting mechanism (900) comprises a supporting body (901) and a driving piece for driving the supporting body (901) to rise or fall.

17. The overhead lumber cutting truck according to claim 16, wherein the supporting mechanism (900) further comprises a first supporting rod (902), a second supporting rod (903), an upper bracket (904), a lower bracket (905), a swing arm (906), and a connection base (908), and the driving member is a telescopic driving member (907); the upper bracket (904) is arranged opposite to the lower bracket (905), the upper bracket (904) is connected to the lower side of the support body (901), and the lower bracket (905) is fixed opposite to the connecting seat (908); the first support rod (902) and the second support rod (903) are arranged in parallel, one ends of the first support rod (902) and the second support rod (903) are respectively hinged with the upper support (904), the other ends of the first support rod (902) and the second support rod (903) are respectively hinged with the lower support (905), and the hinge points of the first support rod (902), the second support rod (903) and the two support rods, the upper support (904) and the lower support (905) form a parallelogram; the first support rod (902) is fixedly connected with a swing arm (906), two ends of the telescopic driving piece (907) are respectively connected with the swing arm (906) and the connecting seat (908) and used for driving the swing arm (906) to rotate around the hinge point of the first support rod (902) and the lower support (905) along with the telescopic driving piece (907).

18. The overhead wood cutting vehicle according to claim 1 or 16, wherein a crushing mechanism (1000) is further arranged on the vehicle body, the crushing mechanism (1000) comprises a bracket (1001), a feeding mechanism (1002), a pruning mechanism (1003) and a discharging mechanism (1004), the feeding mechanism (1002) comprises a lower feeding mechanism (1201), the lower feeding mechanism (1201) and the pruning mechanism (1003) are hinged to the front side and the rear side of the bracket (1001) through a hinge shaft a (1061) and a hinge shaft B (1062) respectively, and the discharging mechanism (1004) is arranged on the output side of the pruning mechanism (1003); a third overturning cylinder (1051) is connected between the lower feeding mechanism (1201) and the bracket (1001) and is used for driving the lower feeding mechanism (1201) to overturn around the hinge shaft A (1061) to be in a folded or flat state; a fourth overturning cylinder (1052) is connected between the branch cutting mechanism (1003) and the bracket (1001) and is used for driving the bracket (1001) to carry the feeding mechanism (1002) to overturn around the hinging shaft B (1062).

19. The overhead lumber cutting truck according to claim 18, wherein a collection box (1100) is further provided on the truck body, the collection box (1100) being located at an output side of the discharging mechanism (1004).

20. Overhead lumber truck according to any one of claims 1-19, characterized in that the working head (100) is replaced by the following structure:

The working head (100) comprises:

the working frame (1301) is fixedly connected with the folding telescopic arm (800);

a roll-over stand (1304) hinged to the front end of the work frame (1301) through a hinge axis C (1381);

a turn-over cylinder 1341 connected to the turn-over frame 1304 and the work frame 1301, respectively, for driving the turn-over frame 1304 to rotate about the hinge axis C1381; wherein the turning cylinder (1341) is hinged with the turning frame (1304) preferably through a connecting rod structure;

a swing rotary base (1305) hinged to the front end of the roll-over stand (1304) through a hinge shaft D (1382), wherein the hinge shaft D (1382) and the hinge shaft C (1381) are mutually perpendicular;

and a support frame (7) which is connected to the front end of the swing rotary seat (1305) through a third slewing bearing (1306) and is used for bearing the grabbing mechanism (2) and the sawing mechanism (3).