CN114953046B - Branch cutting equipment - Google Patents

Abstract

The application provides branch cutting equipment, branch cutting equipment includes frame, transmission, cutting device and clamping device. The transmission device is arranged on the frame. The cutting device comprises two saw blades arranged on a preset axis, and the transmission device is used for driving the two saw blades to rotate around the preset axis relative to the frame; the two saw blades are connected with the rack, at least one of the two saw blades is locked after the position of the two saw blades and the rack can be axially adjusted, and therefore the distance between the two saw blades in the extending direction of the preset axis is adjusted. The clamping device is connected with the rack and is used for clamping branches; the transmission device is also used for driving the clamping device to be close to or far away from the saw blades so as to cut branches on the clamping device through the two saw blades. This equipment sets up double knives, and the cutting is efficient, can be according to required length adjustment saw bit position, satisfies the length needs of customer to the branch, and the use occasion is nimble, and the maintenance is convenient, and is with low costs.

Description

Branch cutting equipment

Technical Field

The invention relates to the technical field of cutting, in particular to branch cutting equipment.

Background

Two steps, namely sand fixation and tree planting, are commonly used for desert control, and two steps, namely artificial cutting grass grids and tree grids, are commonly used for sand fixation at present. The raw material of the grass square is generally straw, and the raw material of the tree square is generally twig branches with a certain length and is formed by cutting the cut-down twig branches. The work of sand fixation has seasonal requirements, mainly focuses on summer, and the preparation time of the wattle branches is concentrated; the treatment area is large, the terrain of a working face is complex and changeable, and the material preparation demand is different and large; the desert area has severe environment, and the working and living conditions of operators are very hard. The existing equipment can not well meet the use requirements, so far, no suitable chaste tree twig cutting equipment is widely applied to a working face, and the traditional homemade simple mechanical device is still mainly used for cutting.

The inventor researches and discovers that the branch cutting equipment has the following defects:

low cutting efficiency and inconvenient use.

Disclosure of Invention

The invention aims to provide branch cutting equipment which can improve the cutting efficiency, can adjust the cutting length of branches according to requirements, and has the advantages of wide application range, convenience in adjustment, maintenance and repair and low cost.

The embodiment of the invention is realized by the following steps:

the invention provides a branch cutting device, comprising:

a frame;

the transmission device is arranged on the rack;

the cutting device comprises two saw blades which are arranged on a preset axis, and the transmission device is used for driving the two saw blades to rotate around the preset axis relative to the rack; the two saw blades are both connected with the rack, and at least one of the two saw blades and the rack can be locked after being axially adjusted in position so as to adjust the distance between the two saw blades in the extending direction of the preset axis;

the clamping device is connected with the rack and is used for clamping branches; the transmission device is used for driving the clamping device to be close to or far away from the saw blades so as to cut branches on the clamping device through the two saw blades.

In an alternative embodiment, the frame includes a base and two rotating shafts, the two rotating shafts are both connected with the base, the two rotating shafts have a distance in the extending direction of the preset axis, and the two saw blades are rotatably connected with the base through the two rotating shafts respectively; at least one of the two saw blades is adjustably connected with the corresponding rotating shaft in the extending direction of the rotating shaft so as to adjust the distance between the two saw blades in the extending direction of the preset axis.

In an alternative embodiment, the cutting device further comprises an adjustment mechanism by which one of the two blades is adjustably connected to the corresponding rotational shaft; the adjusting mechanism comprises a connecting sleeve, a spring chuck and a locking nut, the saw blade is sleeved outside the connecting sleeve, and the saw blade and the connecting sleeve are relatively fixed in the extending direction of the preset axis; the spring chuck is inserted into the connecting sleeve, the first end of the spring chuck abuts against the connecting sleeve, the locking nut is in threaded connection with the connecting sleeve, and the second end of the spring chuck abuts against the locking nut; the spring chuck is provided with an inserting channel capable of adjusting the radial size, the rotating shaft is inserted into the inserting channel, and the locking nut is used for enabling the spring chuck to have the inward contraction trend, so that the diameter of the inserting channel is reduced to enable the spring chuck to tightly hold the rotating shaft, and the saw blade is relatively fixed relative to the rotating shaft in the extending direction of the preset axis.

In an optional embodiment, the collet chuck includes a plurality of elastic strips arranged in an annular shape, and end portions of the plurality of elastic strips corresponding to the second end are all abutted against the lock nut; in the arrangement direction of the elastic strips, the first ends of at least two elastic strips have intervals.

In an optional embodiment, the saw blade is provided as a circular piece, an avoidance through hole for avoiding the saw blade is arranged on the rack, the saw blade is embedded into the avoidance through hole, and the depth of embedding the saw blade into the avoidance through hole is (1/10-1/8) of the diameter of the saw blade.

In an alternative embodiment, the clamping device includes a first guide rod, a second guide rod, a connecting rod, a first clamping mechanism, and a second clamping mechanism, the first guide rod and the second guide rod are both connected to the frame, and the first clamping mechanism and the second clamping mechanism are respectively adjustably connected to the first guide rod and the second guide rod; the first clamping mechanism and the second clamping mechanism are connected through the connecting rod, and the first clamping mechanism and the second clamping mechanism jointly define a clamping space for containing branches; the first clamping mechanism is located on one side, far away from the saw blade, of the second clamping mechanism, and the transmission device is used for driving the first clamping mechanism to be close to or far away from the saw blade.

In an alternative embodiment, the clamping device further comprises an elastic member for causing the first clamping mechanism and the second clamping mechanism to have a tendency to move away from each other.

In an alternative embodiment, the transmission device comprises a speed reducer, a first transmission mechanism and a second transmission mechanism, the speed reducer is connected with the frame, and the speed reducer is connected with the saw blade through the first transmission mechanism; the speed reducer is connected with the first clamping mechanism through the second transmission mechanism.

In an optional embodiment, the second transmission mechanism includes a first transmission wheel, a second transmission wheel, a transmission member, a transmission disc and a transmission pin, the first transmission wheel and the second transmission wheel are both rotatably connected with the frame, the transmission member is tensioned outside the first transmission wheel and the second transmission wheel, and the transmission pin is fixedly connected with the transmission member; the transmission disc is connected with the first clamping mechanism, an annular reversing groove is formed in the transmission disc, and the transmission pin is inserted into the reversing groove; the speed reducer is connected with one of the first driving wheel and the second driving wheel and is used for rotating the first driving wheel or the second driving wheel;

when the first driving wheel or the second driving wheel rotates along a set direction, the driving part drives the driving disc to move through the driving pin, and the driving pin can slide in the reversing groove along the extending direction of the reversing groove to change the advancing direction of the driving disc, so that the first clamping mechanism drives the second clamping mechanism to be close to or far away from the saw blade.

In an alternative embodiment, the twig cutting apparatus further comprises a guard connected to the frame for housing the two saw blades.

The embodiment of the invention has the beneficial effects that:

in summary, the branch cutting device provided in this embodiment adjusts the distance between the saw blades as required, so that the distance between the two saw blades is exactly equal to the length of the required branch segment. Then, the branches are placed in bundles on the holding device, and for convenience of description, the outer sides of the two saw blades are respectively a first side and a second side, which can also be understood as two width sides of the frame in the extending direction of the preset axis, and meanwhile, the saw blade corresponding to the first side is a first saw blade, and the saw blade corresponding to the second side is a second saw blade. When the branches are placed on the clamping device, the branches are placed from the first side, the branches are pushed in the extending direction of the preset axis to extend out of one side of the clamping device corresponding to the second side, and the length of the branches extending out of one side of the clamping device corresponding to the second side is just equal to the length of the required branch sections. After the position adjustment of the branches and the clamping device is completed, the transmission device is utilized to drive the saw blades and the clamping device to move, the clamping device drives the branches to be close to the saw blades, each branch is cut into three sections by the two saw blades, and in the three sections of branch sections, the branch section cut off by the second saw blade and the branch section between the first saw blade and the second saw blade are target branch sections, namely the branch sections with the required length. And, can adjust the distance between two saw bits as required, can guarantee to cut at every turn and can both acquire two required branch sections, use in a flexible way, the adjustment is convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Figure 1 is a schematic structural view of a twig cutting apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a frame and transmission according to an embodiment of the present invention;

FIG. 3 is a schematic view of the saw blade, adjustment mechanism and rotating shaft of an embodiment of the present invention;

FIG. 4 is an exploded view of the saw blade, adjustment mechanism and rotary shaft of an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a collet according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a clamping device and a second transmission mechanism according to an embodiment of the invention;

FIG. 7 is a schematic structural diagram of a first clamping mechanism according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the operation of the drive plate and drive pin of an embodiment of the present invention.

An icon:

001-preset axis; 100-a frame; 101-a first side; 102-a second side; 103-a cover plate; 104-avoiding the through hole; 105-a running wheel set; 106-protective shell; 109-a base; 110-a first skeleton; 111-a second backbone; 112-a third skeleton; 113-a fourth backbone; 114-a first mounting bar; 115-a second mounting bar; 116-a first measuring rod; 117-second measuring rod; 118-a first mounting frame; 119-a second mounting frame; 120-a third mount; 121-a fourth mounting frame; 122-a first bearing seat; 123-a second bearing seat; 124-a third bearing seat; 125-fourth bearing seat; 126-a first rotation axis; 127-a second axis of rotation; 200-a transmission; 210-a reducer; 220-a first transmission mechanism; 221-a main transmission wheel; 222-a first auxiliary transmission wheel; 223-a second auxiliary driving wheel; 230-a second transmission mechanism; 231-an input pulley; 232-a first drive wheel; 233-a second transmission wheel; 234-a transmission; 235-a transmission disc; 2351-a commutating groove; 2352-straight line trough section; 2353-arc groove section; 236-a drive pin; 300-a cutting device; 310-a first blade; 320-a second blade; 330-an adjustment mechanism; 331-connecting sleeve; 332-a first splint; 333-second splint; 334-a collet chuck; 3341-elastic strip; 3342-first taper; 3343-second tapered surface; 335-a limit nut; 336-a locking nut; 400-a clamping device; 401-strip shaped holes; 410-a first guide bar; 420-a second guide bar; 430-connecting rod; 440-an elastic member; 450-a first clamping mechanism; 451-a first sliding seat; 452-a first modulation plate; 4521-second regulating plate; 453-first backing plate; 454-a second bolster; 455-first connecting rod; 456-a first adjusting nut; 457-a second adjusting nut; 458-a first front clamp arm; 459-a second front clamp arm; 460-a second clamping mechanism; 461-second sliding seat; 462-a second connecting rod; 463 — a first rear clamp arm; 464-a second rear clamp arm; 500-a guard; 510-a first fixing bar; 520-a second fixing bar; 530-a first shield; 540 — second shield.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

At present, when cutting equipment for cutting branches is used, the branches are manually placed below a cutter in a bundle, the cutter cuts one branch to obtain a section of branch, and the length of the branch section obtained after each cutting is adjusted through the difference of the lengths of the manually pushed branches. The existing branch cutting equipment is inconvenient to operate and low in efficiency.

Referring to fig. 1 to 8, in view of this, designers design a branch cutting device, which is convenient and flexible to operate and has high branch cutting efficiency.

Referring to fig. 1, in the present embodiment, the branch cutting apparatus includes a frame 100, a transmission device 200, a cutting device 300 and a clamping device 400. The transmission 200 is provided on the frame 100. The cutting device 300 comprises two saw blades arranged on a preset axis 001, and the transmission device 200 is used for driving the two saw blades to rotate around the preset axis 001 relative to the frame 100; both saw blades are connected with the frame 100, and at least one of the two saw blades and the frame 100 can be axially adjusted and then locked, so that the distance between the two saw blades in the extending direction of the preset axis 001 can be adjusted. The clamping device 400 is connected with the frame 100, and the clamping device 400 is used for clamping branches; the transmission 200 is used to drive the clamping device 400 to move closer to or away from the saw blades to cut the wickers on the clamping device 400 by the two saw blades.

The operating principle of the branch cutting equipment provided by the embodiment is as follows:

the distance between the saw blades is adjusted according to the length of the required branch segment, so that the distance between the two saw blades is just equal to the length of the required branch segment. Then, the branches are placed on the holding device 400 in a bundle, for the convenience of description, the outer sides of the two saw blades are the first side 101 and the second side 102, the first side 101 and the second side 102 can also be understood as two width sides of the frame 100 in the extending direction of the preset axis 001, meanwhile, the saw blade corresponding to the first side 101 is the first saw blade 310, and the saw blade corresponding to the second side 102 is the second saw blade 320. When a branch is placed on the clamping device 400, the branch is pushed from the first side 101 to the second side 102 and enters the clamping space of the clamping device 400, and in the process of pushing the branch to move from the first side 101 to the second side 102, one end of the branch extends out of the clamping device 400 at the side corresponding to the second side 102, and the length of the branch extending out of the clamping device 400 at the side corresponding to the second side 102 is just equal to the length of a required branch section. After the position of the branches and the clamping device 400 is adjusted, the transmission device drives the saw blades and the clamping device 400 to move, the clamping device 400 drives the branches to move along the first direction and approach the saw blades, each branch is cut into three sections by the two saw blades, and of the three sections, the branch section formed by cutting by the second saw blade 320 and the branch section clamped between the first saw blade 310 and the second saw blade 320 are target branch sections, namely branch sections with required lengths. Therefore, after each branch is cut, two branch sections with required lengths can be obtained, and the cutting efficiency is high. And, can adjust the distance between two saw bits as required, can guarantee to cut at every turn and can both acquire two required branch sections, use in a flexible way, adjust the convenience.

It should be understood that the transmission 200 is connected to a power source, which provides power for the operation of the equipment, and is disposed outside the frame, and the power source may be a diesel engine or the like.

It should be noted that the clamping device 400 is close to the saw blade from the initial position along the first direction, and after the branch on the clamping device 400 is cut by the saw blade, the first target branch segment corresponding to the second side 102 falls from the second side 102. Then, the chucking device 400 is returned to the initial position in a second direction opposite to the first direction. Then, the branch on the first side 101 is pushed to the second side 102, the branch pushes the second section of the target branch segment in the clamping device 400 away from the clamping device 400, and the second section of the target branch segment falls from the second side 102, and then the branch is driven by the clamping device 400 to approach the saw blade, and the operation is repeated. Obviously, when a new twig is pushed into the clamping device 400, the length of the twig protruding out of the clamping device 400 is set as required, and is equal to the distance between the two saw blades.

Referring to fig. 2, in the present embodiment, optionally, the rack 100 includes a base 109, a first frame 110, a second frame 111, a third frame 112, a fourth frame 113, a first mounting rod 114, a second mounting rod 115, a first measuring rod 116, a second measuring rod 117, a first mounting frame 118, a second mounting frame 119, a third mounting frame 120, a fourth mounting frame 121, a first bearing seat 122, a second bearing seat 123, a third bearing seat 124, a fourth bearing seat 125, a first rotating shaft 126, and a second rotating shaft 127.

Specifically, the base 109 is a rectangular frame structure, the top of the base 109 is provided with the cover plate 103, the cover plate 103 is provided with the avoidance through holes 104 for avoiding the saw blades, the saw blades can be partially embedded into the avoidance through holes 104, and the number of the avoidance through holes 104 can be one or more, and the avoidance through holes can be set as required. The base 109 is provided at the bottom with a running wheel set 105. The first framework 110, the second framework 111, the third framework 112 and the fourth framework 113 are sequentially arranged on the preset axis 001 in parallel at intervals and are connected with the same side of the base 109. The first mounting rod 114 and the first measuring rod 116 are both provided between the first frame 110 and the second frame 111, and the first measuring rod 116 is located below the first mounting rod 114. The second mounting rod 115 and the second measuring rod 117 are both provided between the third bobbin 112 and the fourth bobbin 113, and the second measuring rod 117 is located below the second mounting rod 115. The first measuring rod 116 and the second measuring rod 117 are provided with scale marks for measuring the distance between the two saw blades, so that the position of the saw blades can be conveniently adjusted. The first mounting frame 118 is connected to the first frame 110, the second mounting frame 119 is connected to the second frame 111, the third mounting frame 120 is connected to the third frame 112, and the fourth mounting frame 121 is connected to the fourth frame 113. First bearing seat 122 is connected with first mounting bracket 118, and second bearing seat 123 is connected with second mounting bracket 119, and third bearing seat 124 is connected with third mounting bracket 120, and the fourth bearing is connected with fourth mounting bracket 121, and first bearing seat 122, second bearing seat 123, third bearing seat 124 and fourth bearing seat 125 coaxial arrangement. The first rotating shaft 126 is inserted into the first bearing seat 122 and the second bearing seat 123 simultaneously; the second rotating shaft 127 is inserted into the third bearing seat 124 and the fourth bearing seat 125 simultaneously. Also, the first rotating shaft 126 has a first input portion protruding between the second and third mounting brackets 119 and 120; the second rotation shaft 127 has a second input portion between the second mounting bracket 119 and the third mounting bracket 120. The first input portion and the second input portion have a distance on the preset axis 001, so that the first rotating shaft 126 and the second rotating shaft 127 are two independent shafts, which is convenient for installation, and is also convenient for mounting and dismounting the transmission member 234 on the respective input portions, which is beneficial for replacing the transmission member 234, and the transmission member 234 can be a belt or a chain, etc. It should be understood that the axes of first and second rotating shafts 126 and 127 are collinear and extend along a predetermined axis 001.

It should be noted that both blades may be adjustably connected to the respective pivot shafts, or one of the blades may be adjustably connected to the pivot shaft. For example, in the embodiment, the first blade 310 and the first rotating shaft 126 are adjustably connected in the axial extending direction of the first rotating shaft 126, that is, when the distance between the first blade 310 and the second blade 320 needs to be adjusted, the first blade 310 is slid relative to the second rotating shaft 127, and after the first blade 310 is slid to the set position, the first blade 310 and the first rotating shaft 126 can be relatively fixed, so that the position firmness of the first blade 310 is ensured, and the first blade is not easily displaced during the rotating process. The second blade 320 is sleeved outside the second rotating shaft 127 and fixed relatively to the second rotating shaft 127 in the axial extending direction.

Referring to fig. 3-4, optionally, the first blade 310 is adjustably coupled to the first rotating shaft 126 via an adjustment mechanism 330. The adjustment mechanism 330 includes a coupling sleeve 331, a first clamp plate 332, a second clamp plate 333, a collet 334, a limit nut 335, and a lock nut 336. The first clamping plate 332 is fixed on the connecting sleeve 331, the second clamping plate 333 is adjustably connected with the connecting sleeve 331, the first saw blade 310 is sleeved outside the connecting sleeve 331, the first saw blade 310 is clamped between the first clamping plate 332 and the second clamping plate 333, and the first saw blade 310 and the connecting sleeve 331 are relatively fixed in the extending direction of the preset axis 001, so that the first saw blade 310 can rotate together with the connecting sleeve 331. The limit nut 335 is sleeved outside the connecting sleeve 331 and abuts against one side of the second clamping plate 333 far from the first clamping plate 332, so that the first saw blade 310 can be clamped between the first clamping plate 332 and the second clamping plate 333. The collet 334 is inserted into the connecting sleeve 331, a first end of the collet 334 abuts against the connecting sleeve 331, the lock nut 336 is screwed with the connecting sleeve 331, and a second end of the collet 334 abuts against the lock nut 336; the collet chuck 334 has a plugging passage capable of adjusting the radial dimension, the rotating shaft is plugged into the plugging passage, the lock nut 336 is used for enabling the collet chuck 334 to have a retraction tendency, so that the collet chuck 334 can clasp the rotating shaft by reducing the diameter of the plugging passage, and the collet chuck 334 is in interference fit with the connecting sleeve 331, so that the first saw blade 310 on the connecting sleeve 331 is relatively fixed relative to the rotating shaft in the extending direction of the preset axis 001. When the distance between the first blade 310 and the second blade 320 needs to be adjusted, the lock nut 336 is unscrewed, the radial contraction force applied to the collet 334 by the lock nut 336 is removed, and the collet 334 can move relative to the connecting sleeve 331. After the adjustment is completed, the locking nut 336 is tightened. The position of first blade 310 is easily and reliably adjusted.

Referring to fig. 5, further, the collet 334 includes a plurality of elastic bars 3341 arranged in a ring shape, each of the plurality of elastic bars 3341 has a first end and a second end opposite to each other in the axial extension direction of the collet 334, and the second end abuts against the lock nut 336; in the arrangement direction of the plurality of elastic strips 3341, the second ends of at least two elastic strips 3341 have a space. The outer peripheral surface of the collet 334 includes a first tapered surface 3342 and a second tapered surface 3343 connected to each other, the diameter of the first tapered surface 3342 gradually increases from the second end to the first end, and the first tapered surface 3342 is configured to abut against the inner peripheral wall of the lock nut 336; the diameter of the second tapered surface 3343 is gradually reduced in a direction from the second end to the first end, and the second tapered surface 3343 is configured to abut against the inner peripheral wall of the connection sleeve 331.

In this embodiment, optionally, the first blade 310 and the second blade 320 are both configured as circular pieces, and the depth of the first blade 310 and the second blade 320 inserted into the bypass through hole 104 is (1/10-1/8) of the blade diameter, so that the arc length of the blade exposed outside the cover plate 103 is longer, that is, the effective cutting arc length of the blade is increased, thereby improving the cutting efficiency.

Referring to fig. 6, in the present embodiment, optionally, the clamping device 400 includes two first guide rods 410, two second guide rods 420, a connecting rod 430, an elastic member 440, a first clamping mechanism 450, and a second clamping mechanism 460. The two first guide rods 410 are arranged in parallel and are both fixedly connected with the base 109. The first clamping mechanism 450 is simultaneously adjustably connected to the two first guide rods 410 in the extending direction of the first guide rods 410. The two second guide rods 420 are parallel to each other and are both fixedly connected to the base 109, and the two first guide rods 410 are parallel to the two second guide rods 420 and are located between the two second guide rods 420. The second clamping mechanism 460 is simultaneously adjustably connected to the two second guide rods 420 in the extending direction of the second guide rods 420. The connecting rod 430 is a stepped rod, and the connecting rod 430 is provided with an annular abutting surface. The connecting rod 430 is connected to the first clamping mechanism 450 and the second clamping mechanism 460 at the same time, a clamping space for clamping the branches is defined between the first clamping mechanism 450 and the second clamping mechanism 460, and the first clamping mechanism 450 can slide relative to the connecting rod 430, so that the first clamping mechanism 450 and the second clamping mechanism 460 can approach or depart from each other. The elastic member 440 is a spring, the elastic member 440 is sleeved outside the connecting rod 430, one end of the elastic member 440 abuts against the annular abutting surface, and the other end abuts against the first clamping mechanism 450, so that the first clamping mechanism 450 tends to be away from the second clamping mechanism 460. The transmission device 200 is connected to the first clamping mechanism 450 for driving the first clamping mechanism 450 to move closer to or away from the saw blade, so as to drive the second clamping mechanism 460 to move synchronously through the connecting rod 430, and finally drive the branches located in the clamping space to move closer to or away from the saw blade. Moreover, due to the arrangement of the elastic member 440, when the clamping device 400 drives the branch to move close to the saw blade, if the processing speed of the saw blade for cutting the branch is slow, the branch cannot be cut, and at this time, the first clamping mechanism 450 can move close to the second clamping mechanism 460 to compress the elastic member 440, so that sufficient time is provided for the saw blade to cut the branch, the saw blade is prevented from being stuck, and the failure rate is reduced. When the front end of the saw blade returns to the normal cutting speed or finishes cutting, the second clamping mechanism 460 is far away from the first clamping mechanism 450 under the action of the elastic piece 440, so that the distance between the first clamping mechanism 450 and the second clamping mechanism 460 is returned to the initial state, and placement of subsequent branch bundles is facilitated. It should be noted that, in other embodiments, the elastic member 440 may also be a spring, a rubber member, or the like.

With reference to fig. 6, the first clamping mechanism 450 further includes a first sliding seat 451, a first adjusting plate 452, a second adjusting plate 4521, a first backing plate 453, a second backing plate 454, a first connecting rod 455, a first adjusting nut 456, a second adjusting nut 457, a first front clamping arm 458, and a second front clamping arm 459. The first sliding seat 451 is adjustably connected with the two first guide rods 410, the first adjusting plate 452 and the second adjusting plate 4521 are connected with the first sliding seat 451, the first adjusting plate 452 and the second adjusting plate 4521 are arranged at intervals in the extending direction of the preset axis 001, and the first adjusting plate 452 and the second adjusting plate 4521 are provided with strip-shaped holes 401. First shim plate 453 and first adjustment plate 452 cooperate to clamp first front clamp arm 458 together, and second shim plate 454 and second adjustment plate 4521 cooperate to clamp second front clamp arm 459 together. Meanwhile, a first connecting rod 455 penetrates through the strip-shaped holes 401 of the first adjusting plate 452 and the second adjusting plate 4521, one end of the first connecting rod 455 simultaneously penetrates through the first adjusting plate 452, the first front clamping arm 458 and the first backing plate 453, and the other end of the first connecting rod 455 simultaneously penetrates through the second adjusting plate 4521, the second front clamping arm 459 and the second backing plate 454. First and second adjusting nuts 456, 457 are each threaded onto a first connecting rod 455, and first adjusting nut 456 is located on a side of first bolster 453 remote from first front clamp arm 458, with first adjusting nut 456 and first adjusting plate 452 cooperating to clamp the bolster and first front clamp arm 458 together. Second adjustment nut 457 is located on a side of second shim plate 454 remote from second front clamp arms 459, and second adjustment nut 457 and second adjustment plate 4521 cooperate to clamp and secure the shim plate to second front clamp arms 459. When the heights of first front clamping arm 458 and second front clamping arm 459 relative to cover plate 103 need to be adjusted according to the size of a branch bundle, because first front clamping arm 458 and second front clamping arm 459 are connected through first connecting rod 455, the heights of first front clamping arm 458 and second front clamping arm 459 are adjusted to be completed simultaneously, so that the operation is convenient and fast, and the accuracy is high. Specifically, the first adjusting nut 456 and the second adjusting nut 457 are loosened, the first front clamping arm 458 and the second front clamping arm 459 are not clamped, at this time, the first connecting rod 455 is pulled up to slide relative to the strip-shaped hole 401, and after the adjustment to the set position, the first adjusting nut 456 and the second adjusting nut 457 are locked.

Referring to fig. 7, optionally, the second clamping mechanism 460 includes a second sliding seat 461, a second connecting rod 462, a first rear clamping arm 463 and a second rear clamping arm 464, the second sliding seat 461 is adjustably connected to the two second guide rods 420, the first rear clamping arm 463 and the second rear clamping arm 464 are both connected to the second sliding seat 461, and the two second clamping arms are arranged at intervals on the preset axis 001; second connecting bar 462 is connected to both first and second rear clamp arms 463, 464. Obviously, in other embodiments, the first and second rear clamp arms 463, 464 may also be provided in a height-adjustable configuration.

Referring to fig. 1, fig. 2, fig. 6 and fig. 8, in the present embodiment, the transmission device 200 optionally includes a speed reducer 210, a first transmission mechanism 220 and a second transmission mechanism 230. The speed reducer 210 is a worm gear speed reducer, the speed reducer 210 is arranged on the base 109, and the speed reducer 210 is connected with the saw blade through a first transmission mechanism 220. The power source is connected to the decelerator 210 through a belt. The decelerator 210 is connected to the first clamping mechanism 450 through the second transmission mechanism 230. Optionally, the first transmission mechanism 220 includes a main transmission wheel 221, a first auxiliary transmission wheel 222 and a second auxiliary transmission wheel 223, the main transmission wheel 221, the first auxiliary transmission wheel 222 and the second auxiliary transmission wheel 223 are belt pulleys, and the main transmission wheel 221 is rotatably connected to the third frame 112. The final drive wheel 221 is connected to the reduction gear 210 through a final drive belt. The first auxiliary transmission wheel 222 is fixedly connected with a first input part of the first rotating shaft 126, the second auxiliary transmission wheel 223 is fixedly connected with a second input part of the second rotating shaft 127, namely, the first auxiliary transmission wheel 222 and the second auxiliary transmission wheel 223 are both positioned between the second mounting frame 119 and the third mounting frame 120, the first auxiliary transmission wheel 222 and the second auxiliary transmission wheel 223 are both positioned on the main transmission wheel 221 and are connected with the first auxiliary transmission wheel 222 through a first auxiliary transmission belt, and the main transmission wheel 221 is connected with the second auxiliary transmission wheel 223 through a second auxiliary transmission belt. So, be convenient for first auxiliary drive belt and the change of second auxiliary drive belt. Optionally, the second transmission mechanism 230 includes an input pulley 231, a first transmission wheel 232, a second transmission wheel 233, a transmission member 234, a transmission disc 235 and a transmission pin 236, the input pulley 231 is coaxial with and connected to the first transmission wheel 232, and the input pulley 231 or the axle of the first transmission wheel 232 is rotatably connected to the base 109. The speed reducer 210 is connected to the input pulley 231 via a belt, the second transmission wheel 233 is rotatably connected to the base 109, the transmission member 234 is simultaneously tensioned around the first transmission wheel 232 and the second transmission wheel 233, and the transmission pin 236 is fixedly connected to the transmission member 234. The transmission disc 235 is connected with the first sliding seat 451 of the first clamping mechanism 450 and is located at a substantially middle position of the first sliding seat 451 in a length direction. The drive disc 235 is provided with an annular reversing groove 2351, the annular groove comprises a linear groove section 2352 and an arc groove section 2353, two ends of the linear groove section 2352 are respectively communicated with two ends of the arc groove section 2353, the drive pin 236 is inserted into the reversing groove 2351, and can slide in the annular groove along the extending direction of the reversing groove 2351. The reducer 210 rotates via the driving input pulley 231, thereby driving the first driving wheel 232 to rotate, and finally realizing the rotation of the transmission member 234.

When the first driving wheel 232 rotates in a set direction under the driving of the reducer 210, the driving member 234 drives the driving disc 235 through the driving pin 236, and the driving pin 236 can slide in the direction of extension of the direction-changing groove 2351 in the direction-changing groove 2351 to change the traveling direction of the driving disc 235, so that the first clamping mechanism 450 drives the second clamping mechanism 460 to get close to or get away from the saw blade. As shown in fig. 8, it is set that the two positions where the linear groove section 2352 communicates with the arc groove section 2353 are P and Q, respectively, when the driving pin 236 is located at P in the initial position, the first sliding seat 451 moves close to the saw blade from right to left by the driving pin 236 during the counterclockwise rotation of the driving member 234, and the driving pin 236 is always located at P; when the branch bundle is cut, at this moment, the driving pin 236 moves together with the driving part 234 to the first driving wheel 232, along with the counterclockwise rotation of the driving wheel, the driving pin 236 passes through the linear groove section 2352 from the point P, and reaches the point Q, at this moment, the driving disc 235 completes the reversing, and along with the movement of the driving part 234, the driving pin 236 is kept at the point Q and drives the first sliding seat 451 to move from left to right. When the driving pin 236 moves to the position where the second driving wheel 233 is located, the driving pin 236 moves from point Q to point P through the arc-shaped slot segment 2353, that is, the driving pin 236 returns to the starting position, thereby starting the next circulation movement. In this manner, the clamping device 400 is allowed to reciprocate in a direction approaching the saw blade and in a direction departing from the saw blade.

It should be noted that the first driving wheel 232 and the second driving wheel 233 are both sprockets, the driving member 234 is a chain, and the driving pin 236 is a chain link of the chain or is fixedly connected with a chain link of the chain.

Referring to fig. 1, in this embodiment, optionally, the twig cutting device 300 further comprises a protection device 500, wherein the protection device 500 comprises a first fixing rod 510, a second fixing rod 520, a first protection cover 530 and a second protection cover 540. The first fixing rod 510 is disposed between the third frame 112 and the fourth frame 113, the first fixing rod 510 extends along a predetermined axis 001, the first guard 530 is rotatably connected to the first fixing rod 510, and the first guard 530 can slide along the first fixing rod 510 in the extending direction of the axis of the first fixing rod 510, and the first guard 530 is disposed outside the first blade 310 to protect the first blade 310. And the position of the first guard 530 may be adjusted accordingly depending on the position of the first blade 310. The second fixing rod 520 is disposed between the first frame 110 and the second frame 111, the second fixing rod 520 extends along a predetermined axis 001, the second protecting cover 540 is rotatably connected to the second fixing rod 520, and the second protecting cover 540 is used for covering the second saw blade 320 to protect the second saw blade 320. It should be appreciated that when the second blade 320 is slidably disposed with respect to the second rotary shaft 127, the second shield 540 may also be slidably disposed with respect to the second fixing rod 520 to adjust the position.

In other embodiments, a shield case 106 may be disposed between the second mounting bracket 119 and the second mounting bracket 119 for shielding the first transmission mechanism 220, the first input portion, and the second input portion.

The branch cutting device provided by the embodiment can be applied to cutting of the chaste tree twigs, the bundles of chaste tree twigs are fed onto the clamping device 400 by manual or mechanical equipment, the two saw blades are used for cutting simultaneously, the bundles of chaste tree twigs are divided into three sections in length, two sections of the three sections meet the cutting length required by a customer, and the third section continues to finish cutting in the next working cycle. The section of the two sections of the wattles which meet the cutting length and are arranged on the outer side automatically falls off by self weight, and the second section of the wattles in the clamping device 400 is pushed off from the length direction of the wattles during feeding, is the same as the falling place of the first section of the wattles, and completes a working cycle. Compared with the existing twig cutting machine, the double-cutter cutting is adopted, so that the production efficiency is greatly improved, and the material preparation requirement on a working surface is greatly met; quick-wear parts such as belts and the like are convenient to replace, the maintenance efficiency is improved, and the overall cutting work efficiency is improved; the problems of time robbery between people and sand caused by severe working environment, few sand control personnel and short effective sand control period are solved; the manual operation is replaced by the machine operation, so that the labor intensity and the labor cost are reduced; a brand-new working mode is adopted, people are separated from the saw blade and the material partially, the operating environment of operators is improved, the operating strength of the operators is greatly reduced, and the operation humanization of the machine is improved; other designs of the saw blade protection follow-up system and the safety aspect fully ensure the safety of operators. Meanwhile, the distance between the saw blades can be adjusted as required, so that the chaste trees with set length can be obtained as required, and the application range is wide.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. A twig cutting apparatus, comprising:

a frame;

the transmission device is arranged on the rack;

the cutting device comprises two saw blades which are arranged on a preset axis, and the transmission device is used for driving the two saw blades to rotate around the preset axis relative to the rack;

the clamping device is connected with the rack and is used for clamping branches; the transmission device is used for driving the clamping device to be close to or far away from the saw blades so as to cut branches on the clamping device through the two saw blades;

the machine frame comprises a base and two rotating shafts, the two rotating shafts are connected with the base, the two rotating shafts have a distance in the extending direction of the preset axis, and the two saw blades are rotatably connected with the base through the two rotating shafts respectively; at least one of the two saw blades and the corresponding rotating shaft can be locked after the position of the rotating shaft is adjusted in the extending direction of the rotating shaft, so that the distance between the two saw blades in the extending direction of the preset axis is adjusted;

the cutting device further comprises an adjusting mechanism, and one of the two saw blades is adjustably connected with the corresponding rotating shaft through the adjusting mechanism; the adjusting mechanism comprises a connecting sleeve, a spring chuck and a locking nut, the saw blade is sleeved outside the connecting sleeve, and the saw blade and the connecting sleeve are relatively fixed in the extending direction of the preset axis; the spring chuck is inserted into the connecting sleeve, the first end of the spring chuck abuts against the connecting sleeve, the locking nut is in threaded connection with the connecting sleeve, and the second end of the spring chuck abuts against the locking nut; the spring chuck is provided with an inserting channel with adjustable radial size, the rotating shaft is inserted into the inserting channel, and the locking nut is used for enabling the spring chuck to have the tendency of retraction, so that the diameter of the inserting channel can be reduced to enable the spring chuck to tightly hold the rotating shaft, and the saw blade is relatively fixed relative to the rotating shaft in the extending direction of the preset axis;

the spring chuck comprises a plurality of elastic strips which are annularly arranged, and the end parts of the plurality of elastic strips corresponding to the second end are abutted against the locking nut; in the arrangement direction of the elastic strips, the first ends of at least two elastic strips have a distance;

the saw blade is arranged to be a circular piece, an avoidance through hole for avoiding the saw blade is formed in the rack, the saw blade is embedded into the avoidance through hole, and the depth of embedding the saw blade into the avoidance through hole is 1/10-1/8 of the diameter of the saw blade;

the clamping device comprises a first guide rod, a second guide rod, a connecting rod, a first clamping mechanism and a second clamping mechanism, wherein the first guide rod and the second guide rod are both connected with the rack, and the first clamping mechanism and the second clamping mechanism are respectively connected with the first guide rod and the second guide rod in an adjustable manner; the first clamping mechanism and the second clamping mechanism are connected through the connecting rod, and the first clamping mechanism and the second clamping mechanism jointly define a clamping space for containing branches; the first clamping mechanism is positioned on one side, far away from the saw blade, of the second clamping mechanism, and the transmission device is used for driving the first clamping mechanism to be close to or far away from the saw blade;

the clamping device further comprises an elastic piece, and the elastic piece is used for enabling the first clamping mechanism and the second clamping mechanism to have a moving trend of moving away from each other;

the transmission device comprises a speed reducer, a first transmission mechanism and a second transmission mechanism, the speed reducer is connected with the rack, and the speed reducer is connected with the saw blade through the first transmission mechanism; the speed reducer is connected with the first clamping mechanism through the second transmission mechanism;

the second transmission mechanism comprises a first transmission wheel, a second transmission wheel, a transmission part, a transmission disc and a transmission pin, the first transmission wheel and the second transmission wheel are both rotatably connected with the rack, the transmission part is tensioned outside the first transmission wheel and the second transmission wheel, and the transmission pin is fixedly connected with the transmission part; the transmission disc is connected with the first clamping mechanism, an annular reversing groove is formed in the transmission disc, and the transmission pin is inserted into the reversing groove; the speed reducer is connected with one of the first driving wheel and the second driving wheel and is used for rotating the first driving wheel or the second driving wheel;

when the first driving wheel or the second driving wheel rotates along a set direction, the driving part drives the driving disc to move through the driving pin, and the driving pin can slide in the reversing groove along the extending direction of the reversing groove to change the advancing direction of the driving disc, so that the first clamping mechanism drives the second clamping mechanism to be close to or far away from the saw blade.

2. The twig cutting apparatus according to claim 1, characterized in that:

the branch cutting equipment further comprises a protection device, and the protection device is connected with the rack and used for covering the two saw blades.

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