WO2020048085A1 - 修枝机 - Google Patents

修枝机 Download PDF

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Publication number
WO2020048085A1
WO2020048085A1 PCT/CN2019/073396 CN2019073396W WO2020048085A1 WO 2020048085 A1 WO2020048085 A1 WO 2020048085A1 CN 2019073396 W CN2019073396 W CN 2019073396W WO 2020048085 A1 WO2020048085 A1 WO 2020048085A1
Authority
WO
WIPO (PCT)
Prior art keywords
body portion
connection
pruning machine
blade
casing
Prior art date
Application number
PCT/CN2019/073396
Other languages
English (en)
French (fr)
Inventor
李立
伍和坤
Original Assignee
南京德朔实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Priority to EP19858467.4A priority Critical patent/EP3821697B1/en
Publication of WO2020048085A1 publication Critical patent/WO2020048085A1/zh
Priority to US17/161,826 priority patent/US11622507B2/en

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02Secateurs; Flower or fruit shears
    • A01G3/033Secateurs; Flower or fruit shears having motor-driven blades
    • A01G3/037Secateurs; Flower or fruit shears having motor-driven blades the driving means being an electric motor
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/04Apparatus for trimming hedges, e.g. hedge shears
    • A01G3/047Apparatus for trimming hedges, e.g. hedge shears portable
    • A01G3/053Apparatus for trimming hedges, e.g. hedge shears portable motor-driven
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08Other tools for pruning, branching or delimbing standing trees
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/04Apparatus for trimming hedges, e.g. hedge shears
    • A01G2003/0461Apparatus for trimming hedges, e.g. hedge shears with reciprocating knives

Definitions

  • the present disclosure relates to a garden tool, and more particularly to a pruning machine.
  • pruning machines are widely used for trimming shrubs, hedges and other vegetation.
  • the pruning machine usually includes: a casing, a prime mover, a transmission, and a blade assembly, wherein the prime mover and the transmission are disposed in the casing, and one part of the blade assembly is located in the casing, and the other part extends forward to the casing outer.
  • the casing includes a main body portion and a maintenance cover.
  • the maintenance cover is disposed on the lower side of the main body portion. When the maintenance cover is docked with the main body portion, it forms a receiving cavity for accommodating the prime mover and the transmission device, and the blade assembly part is disposed in the receiving cavity for maintenance.
  • the cover and the main body are usually connected by a plurality of screws, and the number of screws for installing the maintenance cover is generally 6 to 8.
  • the blade assembly includes a first blade, a second blade, and a bracket. The first blade and the second blade are mounted to the bracket by screws. The number of the screws for mounting the first blade and the second blade generally requires 6 to 10.
  • an object of the present disclosure is to provide a pruning machine that is convenient for a user to replace a blade assembly and has a low use cost.
  • a pruning machine includes: a blade assembly including a first blade and a second blade performing a cutting function during relative movement; a casing formed with a receiving cavity; a prime mover disposed in the receiving cavity; a transmission device, Configured to realize power transmission between the prime mover and the blade assembly to drive the first blade and the second blade to generate relative motion;
  • the first blade includes: a first body portion along the first Extending in a straight direction; a first cutter tooth portion for cutting vegetation;
  • the second blade includes: a second body portion extending along a second straight direction; a second cutter tooth portion for cutting vegetation;
  • the first The blade further includes a first connection group including a first driving portion connected to the transmission device to introduce the driving force output by the transmission device to the first blade, and connected to the first body portion to make the A first connection portion where the first body portion moves with the first driving portion;
  • the second blade further includes: a second connection group including a connection with the transmission device to introduce the driving force output by the transmission device into the Mentioned second blade
  • the first connection portion is located outside the casing.
  • the pruning machine further includes a stopper capable of restricting the first body portion from being detached from the first connection portion and capable of restricting the second body portion from being detached from the second connection portion, the limiter
  • the stopper has a limit state and an unlocked state; when the stopper is in the limit state, the stopper prevents the first body part from detaching from the first connection part and the second body
  • the stopper allows the first body portion to be detached from the first connection portion and the second body portion to be detached The second connection portion.
  • the pruning machine further comprises: a stopper for restricting the first body portion from disengaging from the first connecting portion, the stopper having a limiter that restricts the first body portion from disengaging from the first The limiting state of the connecting portion and the unlocking state allowing the first body portion to be disengaged from the first connecting portion, the limiting piece is partially located in the housing, and the limiting piece further includes at least a portion that can be The operation part that is operated under the premise of opening the cabinet.
  • a dimension of a portion of the first connecting portion protruding outside the casing in the first straight line direction and a dimension of the first body portion in the first straight line direction are The ratio is greater than 0 and less than or equal to 0.5.
  • first body portion and the first connection portion form a detachable connection in a direction perpendicular to the first straight line; the second body portion and the second connection portion form a vertical direction The detachable connection in the direction of the second straight line.
  • first body portion extends in a first plane
  • first connection portion extends in a second plane
  • first plane and the second plane are parallel and do not coincide
  • second body portion is in The third plane extends in the third plane
  • second connection portion extends in the fourth plane
  • third plane and the fourth plane are parallel and do not overlap.
  • first body portion and the first connection portion there is a height difference between the first body portion and the first connection portion at a connection, and there is a height difference between the second body portion and the second connection portion at a connection.
  • first driving part and the first connection part are integrally formed by one part; the second driving part and the second connection part are integrally formed by one part.
  • first driving portion and the first connecting portion are respectively formed by two different parts; the second driving portion and the second connecting portion are respectively formed by two different parts.
  • first connection portion is formed with a connection hole
  • first body portion is formed or connected with a connector that can be inserted into the connection hole
  • first connecting portion is formed or connected with a connecting member
  • first body portion is formed with a fitting hole through which the connecting member can be inserted.
  • the pruning machine further comprises: a stopper for restricting the first body portion from disengaging from the first connecting portion, the stopper having a limiter that restricts the first body portion from disengaging from the first
  • the limiting state of the connecting portion and the unlocking state allowing the first body portion to be detached from the first connecting portion, the limiting piece is located at least partially outside the casing; it is defined that the first body portion is detached from the first portion
  • a direction of a connecting portion is a first direction
  • the first blade is disposed on a lower side of the second blade; and the stopper prevents the first body portion from being detached from the first connection in the first direction.
  • the first direction and the first straight line are perpendicular to each other.
  • the pruning machine further includes a screw for positioning the stopper in the locked state, the number of the screws is less than or equal to 2, and the screws are located outside the casing.
  • the pruning machine further includes a screw for positioning the stopper in the locked state, and the number of the screws is one.
  • the pruning machine further includes: a first type of screw, passing through the limiting member in a third straight direction perpendicular to the first straight line; a second type of screw, perpendicular to the first
  • a fourth straight direction of the straight line passes through the first blade and the second blade and does not pass through the stopper;
  • the first body portion is formed with a mounting hole through which the second type of screw passes, so
  • the mounting hole includes a sliding portion that allows the second type of screw to slide in a direction parallel to the first straight line and prevents the second type of screw from passing through, and allows the first body portion to be perpendicular to the first line.
  • a straight direction is separated from the through hole portion of the second type of screw.
  • the maximum dimension of the sliding portion in the width direction is smaller than the maximum dimension of the through hole portion in the width direction.
  • the mounting hole is further formed with a guide portion provided at a connection between the sliding portion and the through-hole portion; when the first body portion is installed, the guide portion guides a plurality of the second The type screws are sequentially engaged with their corresponding mounting holes; when the first body portion is disassembled, the guide portion guides a plurality of the second type screws to sequentially disengage from their corresponding installation holes.
  • connection place of the first body portion and the first connection portion is located outside the casing; a connection place of the second body portion and the second connection portion is located outside the casing.
  • first body portion and the first connection portion constitute a detachable connection that can be separated even when the casing is not opened.
  • the pruning machine further includes a stopper for positioning the first body part in a direction perpendicular to the first straight line; or the pruning machine further includes a device for positioning the first The connecting portion presses against the stopper of the first body portion in a direction perpendicular to the first straight line.
  • the first blade is disposed on a lower side of the second blade; a minimum distance between the first body portion and the casing is greater than It is equal to 0 and less than or equal to 300 mm; the minimum distance between the second body portion and the casing is equal to or greater than 0 and less than or equal to 300 mm.
  • first body portion is located outside the casing
  • second body portion is located outside the casing
  • first connection portion is located outside the casing, and another portion extends into the casing; a portion of the second connection portion is located outside the casing, and another portion extends into Into the case.
  • the first body portion can be detached from the first connection portion in a direction perpendicular to the first straight line; the stopper is used for restricting the first body portion to be perpendicular to the first straight line.
  • a straight direction is separated from the pressure plate of the first connection portion; a part of the pressure plate is located outside the casing, and another portion is located inside the casing.
  • the pruning machine further includes a bracket for supporting the first blade and the second blade; the pressure plate is fixed to the bracket by a first type of screw, and the first type of screw The number is less than three; when the first type of screw is removed, the pressing plate can be detached from the casing in a direction parallel to the first straight line.
  • the pruning machine further includes a second type of screw for connecting the first body portion and the second body portion to the bracket; the first body portion is opposed to each other along the first straight direction
  • the second type screw has at least a first position and a second position. When the first body part is located in the first position, the second type screw prevents the first body part from disengaging from the bracket. When the first body portion is located in the second position, the second type of screw allows the first body portion to disengage from the bracket.
  • the second body portion has at least a third position and a fourth position relative to the second type of screw along the second straight direction.
  • the second body portion When the second body portion is located in the third position, the second body portion has A second type of screw prevents the second body portion from disengaging from the bracket.
  • the second type of screw allows the second body portion to disengage from the bracket.
  • the limiting member is: a pressure plate for restricting the first body portion from separating from the first connection portion in a direction perpendicular to the first straight line; the pressure plate is fixed to the In the blade assembly, the first type of screw is located outside the casing, and when the first type of screw is removed, the pressure plate can be removed by the user from outside the casing without opening the casing. Press down to disengage the blade assembly.
  • the casing includes a main body part and a maintenance cover which are detachably connected together, and when the maintenance cover is removed, the structure inside the casing is at least partially exposed for replacement or maintenance; the first The main body portion and the first connection portion constitute a detachable connection that can be separated without removing the maintenance cover.
  • first body portion and the second body portion are made of a first material
  • first connection portion and the second connection portion are made of a second material different from the first material.
  • the pruning machine further includes a stopper for pressing the first body portion to the first connecting portion in a direction that intersects the first straight line at an angle; or
  • the branching machine further includes a stopper for pressing the first connecting portion to the first body portion in a direction that intersects the first straight line obliquely.
  • the present disclosure is beneficial in that the pruning machine enables an operator to quickly replace the first body portion and the second body portion in the blade assembly, and can reduce the use cost of the user.
  • FIG. 1 is a perspective view of a pruning machine according to a first embodiment of the present disclosure
  • Figure 2 is a plan view of the pruning machine of Figure 1;
  • Figure 3 is a sectional view of the pruning machine in Figure 2;
  • FIG. 4 is an enlarged view of a part of the structure of the pruning machine in FIG. 3;
  • FIG. 5 is a sectional view of a partial structure of an eccentric component and a blade component in the pruning machine of FIG. 3;
  • FIG. 6 is an enlarged view of a partial structure of the blade assembly in FIG. 5;
  • FIG. 7 is a perspective view of an eccentric component and a blade component in the pruning machine of FIG. 2;
  • FIG. 8 is an exploded view of the eccentric component and the blade component in the pruning machine of FIG. 2;
  • FIG. 9 is an exploded view of a first blade and a second blade in the blade assembly in FIG. 8;
  • FIG. 10 is a plan view of a partial structure of a first body portion in the blade assembly in FIG. 8;
  • FIG. 11 is a plan view of a partial structure of a second body portion in the blade assembly in FIG. 8;
  • FIG. 12 is a plan view of a bracket in the blade assembly of FIG. 8;
  • FIG. 13 is a perspective view of the pruning machine of FIG. 1 with the first body portion and the second body portion removed;
  • FIG. 14 is a perspective view of the pruning machine of FIG. 1 with a first type of screw removed;
  • FIG. 15 is a perspective view of the pruning machine of FIG. 1 after the stopper is pulled out;
  • FIG. 16 is a perspective view of the pruning machine of FIG. 1 after a stopper is removed;
  • 17 is a perspective view of the pruning machine of FIG. 1 when the first body portion is separated from the first connection portion;
  • FIG. 18 is a perspective view of the pruning machine of FIG. 1 after the first body portion is removed;
  • FIG. 19 is a perspective view of the pruning machine of FIG. 1 when the second body portion is separated from the second connecting portion;
  • FIG. 20 is a perspective view of the pruning machine of FIG. 1 after the second body portion is removed;
  • 21 is a perspective view of a part of a casing and a blade assembly in a pruning machine according to a second embodiment of the present disclosure
  • FIG. 22 is a sectional view of the structure shown in FIG. 21;
  • FIG. 23 is a perspective view of the structure shown in FIG. 21 with the first body portion and the second body portion removed;
  • FIG. 24 is a schematic structural diagram of the pressure plate in FIG. 23.
  • the pruning machine 100 of the first embodiment shown in FIG. 1 is used by an operator to cut various shrubs, hedges, and other vegetation.
  • the pruning machine 100 includes a casing 11 and a blade assembly 20 at least partially disposed outside the casing 11. As shown in FIG. 3 and FIG. 4, the pruning machine 100 further includes a prime mover 12 and a transmission device 13.
  • the prime mover 12 may specifically be a motor.
  • the blade assembly 20 includes a first blade 21 and a second blade 22 capable of generating relative motion. As shown in FIGS. 5 to 8, the first blade 21 includes a first body portion 211 extending in a direction of a first straight line 101, and the second blade 22 includes a second body portion 221 extending in a direction of a second straight line 102. When the two blades 22 and the second blade 22 are reciprocated relative to each other, the blade assembly 20 can perform the function of cutting vegetation.
  • the prime mover 12 is used to drive the first blade 21 and the second blade 22 to generate relative motion.
  • the prime mover 12 includes a prime mover shaft 121 that can rotate about a prime mover axis 103.
  • the prime mover axis 103 is also perpendicular to the first straight line 101.
  • the prime mover axis 103 is also perpendicular to the second straight line 102.
  • the transmission device 13 is used for transmitting power between the prime mover 12 and the blade assembly 20 so as to drive the first blade 21 and the second blade 22 to generate relative motion.
  • a housing cavity 111 is also formed around the casing 11.
  • the prime mover 12 and the transmission device 13 are both disposed in the housing cavity 111.
  • Part of the blade assembly 20 is located inside the housing cavity 111 and the other part is located outside the housing cavity 111.
  • up, down, front, back, left, and right as shown by arrows in FIG. 1 are also defined.
  • the up, down, left, and right directions in this embodiment all take the state where the pruning machine 100 in FIG. 1 and FIG. 2 is located as an example.
  • the cabinet 11 includes a main body portion 112 and a maintenance cover 113.
  • the main body portion 112 surrounds the receiving cavity 111, and the receiving cavity 111 surrounded by the main body portion 112 is opened downward.
  • the maintenance cover 113 closes the receiving cavity on the lower side of the main body portion 112.
  • 111 is an open portion to close the receiving cavity 111.
  • the maintenance cover 113 may be detachably connected to the main body portion 112 by a plurality of screws 114.
  • the operator needs to repair the structure in the receiving cavity 111, such as the transmission device 13, the operator can first remove the screw 114 and then remove the maintenance cover 113. After the maintenance cover 113 is removed, the receiving cavity 111 faces downward When the transmission device 13 is open, the operator can replace or repair the transmission device 13 at this time.
  • the blade assembly 20 projects forward to the outside of the cabinet 11 so that the blade assembly 20 can cut into vegetation.
  • the transmission device 13 includes a speed reduction component 131 and an eccentric component 132.
  • the speed reduction component 131 is used to reduce the output speed of the prime mover 12 to output to the eccentric component 132.
  • the speed reduction component 131 is a planetary gear train.
  • the eccentric component 132 includes an eccentric piece 132a, the eccentric piece 132a includes a central hole 132b, a first eccentric portion 132c, and a second eccentric portion 132d.
  • the first eccentric portion 132c and the second eccentric portion 132d are eccentrically disposed relative to the central hole 132b.
  • the eccentric portion 132c is used for connection with the first blade 21, and the second eccentric portion 132d is used for connection with the second blade 22.
  • the first eccentric portion 132c In the front-rear direction parallel to the first straight line 101, the first eccentric portion 132c is deflected backward with respect to the center hole 132b, and the second eccentric portion 132d is deflected forward with respect to the center hole 132b.
  • the deceleration component 131 drives the eccentric piece 132a to rotate
  • the first eccentric portion 132c drives the first blade 21 to move forward
  • the second eccentric portion 132d drives the second blade 22 to move backward
  • the first eccentric portion 132c moves
  • the second eccentric portion 132d drives the second blade 22 to move forward, so that the movement directions of the first blade 21 and the second blade 22 are opposite, so that the first blade 21 and the second blade can be moved.
  • the whole formed by the blade 22 can realize a cutting function.
  • the first blade 21 includes a first body portion 211, a first cutter tooth portion 212, and a first connection group 21 a.
  • the first connection group 21 a includes a first driving portion 213 and a first connection portion. 214.
  • the first body portion 211 extends in the direction of the first straight line 101.
  • the first cutter tooth portion 212 is used for cutting vegetation.
  • the number of the first cutter tooth portions 212 is multiple.
  • the plurality of first cutter tooth portions 212 are respectively disposed on opposite sides of the first body portion 211 in the width direction. That is, the first cutter teeth portion 212 is provided on both the left and right sides of the first body portion 211.
  • the first cutter teeth portion 212 on the left side of the first body portion 211 is right relative to the first body portion 211
  • the first cutter tooth portion 212 on the side is displaced.
  • the first cutter tooth portion 212 on the left side of the first body portion 211 and the first cutter tooth portion 212 on the right side are not aligned.
  • the first cutter tooth portion 212 on the left side of the first body portion 211 is disposed between two adjacent first cutter tooth portions 212 on the right side.
  • the first cutter tooth portion 212 and the first body portion 211 are integrally formed.
  • the first driving portion 213 is used to cooperate with and connect with the first eccentric portion 132c.
  • the first driving portion 213 is used to convert the rotation of the first eccentric portion 132c into a reciprocating motion of the first blade 21 in the direction of the first straight line 101.
  • the power output from the transmission 13 is thereby introduced into the first blade 21.
  • a first driving hole 213a is formed in the first driving portion 213.
  • the first eccentric portion 132c is disposed in the first driving hole 213a and can move along the hole wall of the first driving hole 213a.
  • the first connecting portion 214 is used to connect the first driving portion 213 and the first body portion 211, so that the first body portion 211 moves back and forth along with the first driving portion 213.
  • the second blade 22 includes a second body portion 221, a second cutter tooth portion 222, and a second connection group 22a.
  • the second connection group 22a includes a second driving portion 223 and a second connection portion 224.
  • the second body portion 221 extends in the direction of the second straight line 102.
  • the second knife tooth portion 222 is used for cutting vegetation.
  • the number of the second knife tooth portion 222 is plural.
  • the plurality of second knife tooth portions 222 are respectively disposed on opposite sides of the second body portion 221 in the width direction. That is, the second cutter portion 222 is provided on both the left and right sides of the second body portion 221.
  • the second cutter portion 222 on the left side of the second body portion 221 is right relative to the second body portion 221
  • the second cutter tooth portion 222 on the side is displaced.
  • the second cutter tooth portion 222 on the left side and the second cutter tooth portion 222 on the right side of the second body portion 221 are not aligned.
  • the second cutter tooth portion 222 on the left side of the second body portion 221 is disposed between two adjacent second cutter tooth portions 222 on the right side.
  • the second cutter tooth portion 222 and the second body portion 221 are integrally formed.
  • the second driving portion 223 is used to cooperate with and connect with the second eccentric portion 132d, and the second driving portion 223 is used to convert the rotation of the second eccentric portion 132d into a reciprocating motion of the second blade 22 in the direction of the second straight line 102, thereby The power output from the transmission 13 is introduced into the second blade 22.
  • a second driving hole 223a is formed in the second driving portion 223.
  • the second eccentric portion 132d is disposed in the second driving hole 223a and can move along the hole wall of the second driving hole 223a. When the two driving holes 223 a move, the second driving portion 223 is driven to reciprocate in the direction of the second straight line 102.
  • the second connection portion 224 is used to connect the second driving portion 223 and the second body portion 221, so that the second body portion 221 moves back and forth along with the second driving portion 223.
  • the distance L1 between the first body portion 211 and the center of the first driving hole 213a is 80 mm or more and 500 mm or less, and the distance L2 between the second body portion 221 and the center of the second driving hole 223a is 80 mm or more and less than 500mm. Further, the distance L1 between the first body portion 211 and the center of the first driving hole 213a is 130 mm or more and 320 mm or less, and the distance L2 between the second body portion 221 and the center of the second driving hole 223a is greater than or equal to 130mm and 320mm or less. In this way, even if the connection point of the first body portion 211 and the first connection portion 214 is located in the casing 11, it is convenient to provide a corresponding window on the casing 11 so that the first body portion is separated from the first connection portion 214.
  • the first blade tooth portion 212 and the second blade tooth portion 222 are relatively easy to wear and become dull during the process of repeatedly cutting vegetation.
  • the first connection portion 214 and the first body portion 211 form a detachable connection
  • the second connection portion 224 and the second body portion 221 also form a detachable connection.
  • At least part of one or both of the first connection portion 214 and the second connection portion 224 is located outside the cabinet 11. That is, the first connection portion 214 is located at least partially outside the casing 11, or the second connection portion 224 is located at least partially outside the casing 11, or at least a part of the entirety formed by the first connection portion 214 and the second connection portion 224. Located outside the casing 11.
  • the operator can quickly disassemble the first body portion 211 and the second body without removing the maintenance cover 113.
  • the main body portion 221 and the new first body portion 211 and the second body portion 221 are replaced, thereby avoiding the tedious process of removing the maintenance cover 113 and removing the internal parts of the cabinet 11 and then reinstalling, so that the operator can quickly
  • the first body portion 211 and the second body portion 221 are replaced, thereby improving the convenience of operation.
  • the operator does not need to replace the first connection group 21a and the second connection group 22a when replacing the first cutter tooth portion 212 and the second cutter tooth portion 222, thereby greatly saving the use cost of the pruning machine 100.
  • connection portion of the first body portion 211 and the first connection portion 214 is located outside the casing 11, and the second body portion 221 and the second connection portion 224 The connection is also located outside the casing 11.
  • the first body portion 211 and the second body portion 221 are both located outside the cabinet 11. In a direction parallel to the first straight line 101, the minimum distance L3 between the first body portion 211 and the cabinet 11 is greater than 0 and 300 mm or less, and the minimum distance L4 between the second body portion 221 and the cabinet 11 is greater than 0 and 300 mm or less.
  • the first body portion 211 is disposed below the second body portion 221, and the minimum distance L3 between the first body portion 211 and the maintenance cover 113 is greater than 0 and less than or equal to 50 mm.
  • the minimum distance L4 between the main body portion 221 and the maintenance cover 113 is greater than 50 mm and less than or equal to 200 mm. This can make it easier for the operator to separate the first body portion 211 and the first connection portion 214 and separate the second body portion 221 and the second connection portion 224.
  • the ratio of the dimension L5 of the portion of the first connecting portion 214 protruding outside the casing 11 in the direction of the first straight line 101 to the dimension L6 of the first body portion 211 in the direction of the first straight line 101 is greater than 0 and less than or equal to 0.5. Further, the ratio of the dimension L5 of the portion of the first connecting portion 214 protruding outside the casing 11 in the direction of the first straight line 101 to the dimension L6 of the first body portion 211 in the direction of the first straight line 101 is greater than 0.02 and less than or equal to 0.25.
  • the portion of the first connecting portion 214 protruding outside the casing 11 is long enough to more stably drive the first body portion 211 to reciprocate to prevent the first body portion 211 from shaking;
  • the length of the portion of the connecting portion 214 protruding outside the casing 11 is too long, resulting in insufficient effective cutting portion of the first body portion 211 and affecting the cutting efficiency.
  • the connection between the first body portion 211 and the first connection portion 214 is not limited to be located outside the casing 11, and the connection between the second body portion 221 and the second connection portion 224 is not limited to be located at the casing 11. outer.
  • connection between the first body portion 211 and the first connection portion 214 may also be located in the cabinet 11, and the connection between the second body portion 221 and the second connection portion 224 may also be located in the machine.
  • the casing 11 at this time, it is only necessary to provide some reasonable structures on the casing 11 that can separate the first body portion 211 and the first connection portion 214 and can separate the second body portion 221 and the second connection portion 224.
  • the first connection portion 214 and the first body portion 211 constitute a detachable connection
  • the connection between the first connection portion 214 and the first body portion 211 is a projection in a plane perpendicular to the first straight line 101
  • the projection of the connection of the first connection portion 214 and the first body portion 211 in a plane perpendicular to the first straight line 101 is located at the eccentric component 132 Outside the projection in this plane;
  • the second connection portion 224 and the second body portion 221 form a detachable connection, and the connection of the second connection portion 224 and the second body portion 221 is in a plane perpendicular to the second straight line 102
  • the projection is located outside the projection of the second eccentric portion 132d in this plane.
  • the projection of the connection between the second connection portion 224 and the second body portion 221 in a plane perpendicular to the second straight line 102 is located at the eccentric component 132. Outside the projection in this plane.
  • the minimum distance L7 between the connection between the first body portion 211 and the first connection portion 214 and the rotation axis of the first eccentric portion 132c is 80 mm or more and 500 mm or less.
  • the rotation axis of the first eccentric portion 132 c is also the prime mover axis 103 of the prime mover shaft 121.
  • the above two methods can make the first body portion 211 and the first connection portion 214 constitute a detachable connection that can be separated without removing the maintenance cover 113, and can also make the second body portion 221 and the second connection portion 224 It constitutes a detachable connection that can be separated even when the maintenance cover 113 is not removed.
  • the specific implementation manners are not limited to the above two manners.
  • the pruning machine 100 further includes a stopper 23 for restricting the first body portion 211 from being detached from the first connecting portion 214, and the stopper 23 can also restrict the second body portion 221 from being detached from the second connecting portion 224
  • the limiting member 23 has a limiting state that restricts the first body portion 211 from being disengaged from the first connecting portion 214 and an unlocking state that allows the first body portion 211 to be disengaged from the first connecting portion 214.
  • the limiting member 23 is at least partially disposed on the casing 11. outer. The limiting member 23 can be operated by an operator from outside the casing 11 to control the limiting member 23 to switch from the limited state to the unlocked state.
  • the limiter 23 When the limiter 23 is in the limit state, the limiter 23 prevents the first body portion 211 from being detached from the first connection portion 214 and the second body portion 221 from being detached from the second connection portion 224; when the limiter 23 is in the unlocked state The stopper 23 allows the first body portion 211 to be separated from the first connection portion 214 and the second body portion 221 to be separated from the second connection portion 224.
  • the casing 11 is also opened forward, so that the blade assembly 20 can protrude forward from the casing 11.
  • the first body portion 211 of the first blade 21 is located outside the casing 11, and the entirety of the first body portion 211 and the first cutter tooth portion 212 extends substantially in a first plane parallel to the first straight line 101.
  • a portion of the first connection portion 214 is located inside the cabinet 11 and another portion is located outside the cabinet 11. That is to say, the first connecting portion 214 is at least partially located in the casing 11, and the first connecting portion 214 also protrudes forward from the casing 11, so that the first connecting portion 214 and the first body portion 211 can be located between
  • the exterior of the casing 11 forms a detachable connection.
  • connection point between the first body portion 211 and the first connection portion 214 is located outside the casing 11.
  • the first connection portion 214 also extends substantially in a second plane parallel to the first straight line 101, and the first and second planes are parallel to each other and do not coincide, that is, the first body portion 211 and the first connection
  • the portion 214 has a height difference in the height direction.
  • the first connecting portion 214 and the first body portion 211 can be configured to be detachably connected in a direction perpendicular to the first straight line 101, that is, the first connecting portion 214 and the first
  • the body portion 211 constitutes a detachable connection in the height direction.
  • the first body portion 211 can be detached downward from the first connection portion 214.
  • the first connection portion 214 is formed with a first connection hole 214a penetrating itself in the height direction
  • the first body portion 211 is formed with a first fitting hole 211a penetrating itself in the height direction.
  • the blade assembly 20 further includes a first connection member 215 that passes through the first connection hole 214a and the first fitting hole 211a in order along the height direction.
  • the first connection member 15 may be a pin.
  • the first connection member 215 Specifically, it is a rivet, and the rivet is interference-fitted with the first connection hole 214a, and the rivet is also clearance-fitted with the first fitting hole 211a.
  • the rivet may also be interference-fitted with the first fitting hole 211a, and gap-fitted with the first connection hole 214a.
  • the first driving portion 213 and the first connecting portion 214 are respectively formed by two different parts, and the first driving portion 213 and the first connecting portion 214 are formed separately, and they both form a fixed connection.
  • the first driving portion 213 and the first connecting portion 214 may also be integrally formed by one component.
  • the first driving portion 213 and the first connecting portion 214 may also be movably connected, so that the first driving portion 213 swings relative to the first connecting portion 214.
  • the operator may turn the pruning machine 100 upside down, that is, the maintenance cover 113 of the lower part of the pruning machine 100 faces upward. At this time, correspondingly, the operator may need to upward
  • the first body portion 211 is lifted so as to be separated from the first connection portion 214.
  • a more wear-resistant annular member is also provided in the first fitting hole 211a.
  • the annular member is detachably disposed in the first fitting hole.
  • the annular member is specifically the first bushing 211b.
  • the wear resistance of the bushing 211b is greater than that of the first fitting hole 211a.
  • the first bushing 211b may also be disposed in the first connecting hole 214a.
  • the first connection member 215 may be integrally formed with the first connection portion 214 or the first body portion 211.
  • the first body portion 211 may also be integrally formed with a convex structure, and the first connection portion 214 is formed with a groove or hole capable of being inserted into the convex structure; or, the convex structure may be further formed on the first connection portion 214, and the first body portion 211 is formed with a groove or hole capable of being inserted into the convex structure.
  • the second body portion 221 of the second blade 22 is located outside the casing 11, and the entirety formed by the second body portion 221 and the second cutter tooth portion 222 extends substantially in a third plane parallel to the second straight line 102.
  • a portion of the second connection portion 224 is located inside the cabinet 11, and another portion is located outside the cabinet 11. That is to say, the second connection portion 224 is at least partially located in the casing 11, and the second connection portion 224 also protrudes forward from the casing 11, so that the second connection portion 224 and the second body portion 221 can
  • the exterior of the casing 11 forms a detachable connection. That is, the connection point between the second body portion 221 and the second connection portion 224 is located outside the casing 11.
  • the second connection portion 224 also extends substantially in a fourth plane parallel to the second straight line 102, and the fourth plane and the third plane are parallel to each other and do not coincide, that is, the second body portion 221 and the second connection portion 224 has a height difference in the height direction.
  • the second connection portion 224 and the second body portion 221 can be made to be detachably connected in a direction perpendicular to the second straight line 102, that is, the second connection portion 224 and the second body portion 221 forms a detachable connection in the height direction. In this way, the second body portion 221 can be separated downward from the second connection portion 224.
  • the second connection portion 224 is formed with a second connection hole 224a penetrating itself in the height direction
  • the second body portion 221 is formed with a second fitting hole 221a penetrating itself in the height direction.
  • the blade assembly 20 further includes a second connecting member 225 passing through the second connecting hole 224a and the second fitting hole 221a in order along the height direction.
  • the second connecting member 225 may also be a pin.
  • the second connecting member 225 is specifically a rivet, and the rivet is interference-fitted with the second connection hole 224a, and the rivet is also clearance-fitted with the second fitting hole 221a.
  • the rivet may also be interference-fitted with the second fitting hole 221a, and be clearance-fitted with the second connection hole 224a.
  • the second driving portion 223 and the second connecting portion 224 are respectively formed by two different parts, and the second driving portion 223 and the second connecting portion 224 are formed separately, and they both form a fixed connection.
  • the second driving portion 223 and the second connecting portion 224 may be integrally formed by one component.
  • the second driving portion 223 and the second connecting portion 224 may also be movably connected, so that the second driving portion 223 swings relative to the second connecting portion 224. Understandably, when removing the blade assembly 20, the operator may turn the pruning machine 100 upside down, that is, the maintenance cover 113 of the lower part of the pruning machine 100 faces upward. At this time, correspondingly, the operator may need to upward The second body portion 221 is lifted so as to be separated from the second connection portion 224.
  • a second wear-resistant annular member is further provided in the second fitting hole 221a.
  • the annular member is specifically a second bushing 221b, and the second bushing 221b has a higher wear resistance than the second fitting hole 221a.
  • the second connecting member 225 may be integrally formed with the second connecting portion 224 or the second body portion 221.
  • the second body portion 221 may also be integrally formed with a protruding structure, and the second connecting portion 224 is formed with a groove or a hole capable of being inserted into the convex structure; or, the convex structure may also be formed on the second connection portion 224, and the second body portion 221 is formed with a groove or hole capable of being inserted into the convex structure.
  • the structure in which the first body portion 211 and the first connection portion 214 form a detachable connection is simpler. It is also easier to achieve a detachable connection between the first body portion 211 and the first connection portion 214; in another aspect, the first body portion 211 and the first connection portion 214 are superimposed on each other such that the entirety of the two is at the connection point.
  • the thickness is thicker, which improves the connection strength, and also makes the first blade 21 more abrasion-resistant.
  • the pin can be passed through It is inserted into the first fitting hole 211a to realize the detachable connection between the first body portion 211 and the first connecting portion 214, which is beneficial to reducing the fitting gap at the connection, so that the noise and vibration at the connection can be significantly improved.
  • there is a connection with a difference in height which facilitates the connection between the pin and the hole. This connection method is convenient to achieve a precise fit with high dimensional accuracy. The precise fit helps reduce the joint clearance at the connection, thereby reducing noise and vibration at the connection. Obvious advantage.
  • connection portion between the first body portion 211 and the first connection portion 214 and the connection portion between the second body portion and the second connection portion are spaced a certain distance, so that the blade can be made Component structure is more problematic, vibration effect
  • the limiting member 23 is used to prevent the first body portion 211 from being separated from the first connecting portion 214.
  • the direction in which the first body portion 211 is separated from the first connection portion 214 is defined as the first direction
  • the stopper 23 is a pressure plate capable of preventing the first body portion 211 from being separated from the first connection portion 214 in the first direction.
  • a main body portion 211 is disposed between the pressure plate and the first connecting portion 214, and the first direction is perpendicular to the first straight line 101.
  • the first direction is also the height direction. The portion 211 is pressed against the first connection portion 214 in a direction perpendicular to the first straight line 101.
  • the limiting member 23 can also press the first body portion 211 to the first connecting portion 214 in a direction that obliquely intersects the first straight line 101.
  • the first blade 21 is disposed on the lower side of the second blade 22, and the stopper 23 prevents the first body portion 211 from falling downward from the first connection portion 214.
  • the positions of the first connection portion and the first body portion may be interchanged in the up-down direction, that is, the first connection portion may be provided on the pressure plate.
  • the stopper presses the first connecting portion to the first body portion in a direction perpendicular to the first straight line or in a direction that intersects the first straight line at this time.
  • the limiting member 23 extends in a direction parallel to the first straight line 101.
  • the limiting member 23 is disposed on the lower side of the first blade 21 to abut the first blade 21 to prevent the first body portion 211 from detaching from the first connecting portion 214.
  • the limiting member 23 is partially disposed in the casing 11, and the limiting member 23 also protrudes forward from the casing 11.
  • the blade assembly 20 further includes a bracket 24 for supporting the first blade 21 and the second blade 22, and the limiting member 23 is mounted to the bracket 24.
  • the blade assembly 20 further includes a fastener for positioning the limiting member 23 in a locked state.
  • the fastener is specifically a first-type screw 25 that fixes the limiting member 23 to the bracket 24.
  • the operator can pull out the stopper 23 forward, so that the stopper 23 is switched to the unlocked state to release the first body portion 211 and the first connection portion. Limitation of 214. At this time, the operator can disengage the first body portion 211 from the first connection portion 214.
  • a part of the stopper 23 is located inside the casing 11, and another part protrudes out of the housing 11.
  • the position of the stopper 23 located outside the casing 11 that can be manipulated by the user to extract the stopper 23 can be defined as the operation portion. 231.
  • the operation portion 231 can be operated by an operator without disassembling the casing 11.
  • the first type screws 25 are provided outside the casing 11, so that the operator can remove the first body portion 211 in the blade assembly 20 without removing the maintenance cover 113 and without opening the casing 11, so that Make the operator more convenient to use.
  • the number of the first type screws 25 is one.
  • the number of the first type screws 25 is not limited to one, and may be two. Of course, it is more convenient for disassembly.
  • the number of screws 25 of the first type can be limited to less than three. In this way, when the user needs to replace the first body portion 211 and the second body portion 221, the user only needs to remove one or two screws, thereby improving the convenience of operation.
  • the length of the first body portion 211 of the first blade 21 provided on the lower side is greater than the length of the second body portion 221 of the second blade 22 on the upper side, and the first connection portion 214
  • the length of the second connection portion 224 is smaller than the length of the second connection portion 224, so that the connection portion of the first connection portion 214 and the first body portion 211 is located at the rear side of the connection portion of the second connection portion 224 and the second body portion 221.
  • the first type screw 25 passes through the stopper 23, the first body portion 211, and the second connection portion 224 in the direction of the third straight line 104 perpendicular to the first straight line 101, and then passes the stopper 23, the first blade 21
  • the second blade 22 is mounted on the bracket 24.
  • the blade assembly 20 further includes a fastener for positioning the first body part 211 and the second body part 221 to the bracket 24.
  • the fastener is specifically a second type screw 26.
  • the second type of screw 26 passes through the first body portion 211 and the second body portion 221 in the direction of a fourth line 105 perpendicular to the first straight line 101, so that the first body portion 211 and the second body portion 221 can be prevented from being in height.
  • Laminating in the direction to improve the cutting ability can also prevent the first body portion 211 and the second body portion 221 from shaking.
  • the number of the second type screws 26 is multiple.
  • the number of the second type screws 26 is seven.
  • the second-type screw 26 does not pass through the limiting member 23, so that the second-type screw 26 can play a role in positioning the first body portion 211 and the second body portion 221 while not restricting the limiting member 23.
  • a first mounting hole 211c is formed in the first body portion 211, and a second type of screw 26 passes through the first mounting hole 211c to mount the first body portion 211 to the bracket 24.
  • the first mounting hole 211c includes a first sliding portion 211d that allows the second type of screw 26 to slide in a direction parallel to the first straight line 101 and prevents the second type of screw 26 from passing therethrough, and allows the first body portion 211 to separate from the second in the height direction.
  • the second type screw 26 includes a cylindrical rod portion centered on the fourth straight line 105 and a head portion provided at one end of the rod portion.
  • the radial dimension of the head portion is larger than the radial dimension of the rod portion.
  • the first sliding portion 211d is an elongated hole extending in the direction of the first straight line 101.
  • the size of the first sliding portion 211d in the width direction is larger than that of the rod portion of the second type screw 26 in the width direction and smaller than that of the head portion.
  • the dimension in that direction may be connected to the second-type screw 26 to prevent the first body portion 211 from being separated from the second-type screw 26.
  • the first through-hole portion 211e is disposed at one end of the first sliding portion 211d.
  • the size of the first through-hole portion 211e in the width direction is larger than the size of the head or the spacer in the width direction.
  • the maximum dimension of the first through-hole portion 211e in the width direction is also larger than the maximum dimension of the first sliding portion 211d in the width direction. Therefore, when the second type screw 26 passes through the first mounting hole 211c and is connected to the bracket 24, when the second type screw 26 cooperates with the first sliding portion 211d, the first body portion 211 cannot be separated from the second type in the height direction. Screw 26, and when the first body portion 211 slides in the direction of the first straight line 101 until the first through-hole portion 211e cooperates with the second type screw 26, the first body portion 211 can be separated from the second type screw 26 in the height direction .
  • the first through-hole portion 211e is a circular hole, and the diameter of the first through-hole portion 211e is larger than the maximum dimension of the first sliding portion 211d in the width direction.
  • the first body portion 211 has at least a first position and a second position with respect to the second type screw 26 in the direction of the first straight line 101.
  • the second type screw 26 prevents the first type The body portion 211 is detached from the bracket 24.
  • the second type of screw 26 allows the first body portion 211 to be detached from the bracket 24.
  • the center of the circular hole is not on the first straight line 101, and the circular hole is not symmetrical about the first straight line 101.
  • the circular hole is aligned with the first cutter tooth portion 212 on the left side with respect to the first cutter tooth portion 212 on the left side of the first body portion 211, while the circular hole is circular with respect to the first cutter tooth portion 212 on the right side.
  • the shaped hole is provided between two adjacent first cutter teeth portions 212 on the right side.
  • the circular hole is oriented toward The left deviation, that is, the center or the center of the circular hole is disposed on the left side of the first straight line 101.
  • a second mounting hole 221c is formed in the second body portion 221, and a second type of screw 26 passes through the second mounting hole 221c to mount the second body portion 221 to the bracket 24.
  • the second mounting hole 221c includes a second sliding portion 221d allowing the second type screw 26 to slide in a direction parallel to the second straight line 102 and preventing the second type screw 26 from passing therethrough, and allowing the second body portion 221 to separate from the second type in the height direction.
  • the second sliding portion 221d is an elongated hole extending along the direction of the second straight line 102.
  • the size of the second sliding portion 221d in the width direction is larger than the width of the rod portion of the second type screw 26 and smaller than the head or the washer. Dimensions in that direction.
  • the second through-hole portion 221e is provided at one end of the second sliding portion 221d.
  • the size of the second through-hole portion 221e in the width direction is larger than the size of the head or the spacer in the width direction.
  • the maximum dimension of the second through-hole portion 221e in the width direction is also larger than the maximum dimension of the second sliding portion 221d in the width direction.
  • the second body portion 221 cannot be separated from the second type in the height direction.
  • Screw 26 and when the second body portion 221 slides in the direction of the second straight line 102 until the second through-hole portion 221e cooperates with the second type screw 26, the second body portion 221 can be separated from the second type screw 26 in the height direction.
  • the second through-hole portion 221e is a circular hole, and the diameter of the second through-hole portion 221e is larger than the maximum dimension of the second sliding portion 221d in the width direction.
  • the second body portion 221 has at least a third position and a fourth position with respect to the second type screw 26 in the direction of the second straight line 102.
  • the second type screw 26 prevents the second body The portion 221 is detached from the bracket 24.
  • the second type of screw 26 allows the second body portion 221 to be detached from the bracket 24.
  • the first body portion 211 and the second body portion 221 are also made of a first material, and the first connection portion 214 and the second connecting portion 224 are made of a second material different from the first material, wherein the second material is more wear-resistant and harder than the first material.
  • the bracket 24 includes a first support portion 241 for supporting the first connection portion 214 and a second support portion 242 for supporting the first body portion 211.
  • first connection portion 214 There is a height difference from the first body portion 211 in the height direction. Therefore, there is also a height difference between the first support portion 241 and the second support portion 242 in the height direction, so that the first blade 21 and the second blade can be better supported. 22. Improve the stability and reliability of the blade assembly 20.
  • the first-type screw 25 can pass through the limiting member 23 and the first supporting portion 241 to fix the limiting member 23 to the first supporting portion 241
  • the second-type screw 26 can pass through the first mounting hole 211c, the second The mounting hole 221c and the second support portion 242 are used to fix the first body portion 211 and the second body portion 221 to the second support portion 242.
  • the operator first removes the screws 25 of the first type; then, as shown in FIGS. 14 and 15, the operator pulls out the stopper 23 to make the stopper 23 in an unlocked state; then, As shown in FIGS. 13 and 16, the stopper 23 is removed; then, as shown in FIGS. 13, 16, and 17, the connection between the first body portion 211 and the first connection portion 214 is turned downward to make the first body
  • the portion 211 is detached downward from the first connection portion 214, and the first body portion 211 is pushed forward so that the first body portion 211 moves forward to a position where the second type of screw 26 fits with the first through hole portion 211e.
  • a main body portion 211 is detached; then, as shown in FIG. 13, FIG. 18, and FIG.
  • connection portion of the second body portion 221 and the second connection portion 224 is turned downward to release the second body portion 221 downward from the second portion.
  • the connection portion 224 and push the second body portion 221 forward so that the second body portion 221 moves forward to a position where the second type of screw 26 fits with the second through hole portion 221e; then, as shown in Figs. 13, 19 and 20 As shown, the second body portion 221 can be removed at this time.
  • the limiting member 23 is removed after removing the first type of screw 25.
  • the limiting member 23 may also be provided as a first mounting hole.
  • 211c has a similar structure, so that even if the first type of screw 25 is not removed, the function of removing the limiting member 23 can be achieved; or, in other embodiments, the limiting member 23 is not fixed by screws, but by A buckle and other structures are fixed.
  • a guide portion 211f is further provided at a connection between the first through-hole portion 211e and the first sliding portion 211d.
  • the guide portion 211f can guide the first body portion 211 from the first sliding portion 211d and The position where the second type screw 26 contacts moves to the position where the first through-hole portion 211e contacts the second type screw 26, and the guide portion 211f can also guide the first body portion 211 from the first through-hole portion 211e to the second type screw 26 The contact position is moved to a position where the first sliding portion 211d is in contact with the second-type screw 26.
  • the guide portion 211f is chamfered and further rounded.
  • the number of the first mounting holes 211c is plural, and the guide portions 211f of two adjacent first mounting holes 211c are rounded corners having different rounded corner radii.
  • the guide portion 211f can guide the plurality of second-type screws 26 to be sequentially engaged with the corresponding first mounting holes 211c, that is, the first second-type screw 26 is engaged with After the corresponding first mounting hole 211c is engaged, the second second type screw 26 is engaged with its corresponding first mounting hole 211c, and then the third second type screw 26 is again engaged with its corresponding first mounting hole 211c is engaged; and when the first body portion 211 is removed, the guide portion 211f can guide a plurality of second-type screws 26 to sequentially disengage from their corresponding first mounting holes 211c, thereby reducing the first body portion 211 during disassembly or The frictional force during installation improves the performance of operation.
  • the engagement of the second type of screw 26 with the first mounting hole 211c means that the first body portion 211 moves to a position where the first through-hole portion 211e contacts the second type of screw 26, and the second type of screw 26 engages with the first installation
  • the disengagement of the hole 211c means that the first body portion 211 is moved to a position where the first sliding portion 211d is in contact with the second-type screw 26.
  • a guide portion 221f is further provided at a connection between the second through-hole portion 221e and the second sliding portion 221d.
  • the guide portion 221f can guide the second body portion 221 to contact the second type screw 26 by the second sliding portion 221d.
  • the position of the second through-hole portion 221e is in contact with the second-type screw 26, and the guide portion 221f can also guide the second body portion 221 to move from the position where the second through-hole portion 221e and the second-type screw 26 are in contact.
  • the position where the two sliding portions 221d are in contact with the second-type screw 26.
  • the guide portion 221f is chamfered and further rounded.
  • the number of the second mounting holes 221c is plural, and the guide portions 221f of two adjacent second mounting holes 221c are rounded corners having different rounded corner radii.
  • the guide portion 221f can guide a plurality of second-type screws 26 to sequentially engage with the corresponding second mounting holes 221c thereof; and when the second body portion 221 is removed, the guide portion 221f can The plurality of second-type screws 26 are guided to be sequentially disengaged from their corresponding second mounting holes 221c, thereby reducing the frictional force received by the second body portion 221 during disassembly or installation, and improving the performance of operation.
  • the engagement of the second type screw 26 with the second mounting hole 221c means that the second body portion 221 moves to a position where the second through-hole portion 221e contacts the second type screw 26, and the second type screw 26 and the second installation
  • the disengagement of the hole 221c means that the second body portion 221 is moved to a position where the second sliding portion 221d is in contact with the second-type screw 26.
  • the present disclosure also proposes a pruning machine of a second embodiment, which is the same as the pruning machine 100 in the first embodiment: a casing, a prime mover, and a transmission device.
  • the pruning machine of this embodiment further includes a blade assembly 40, and the blade assembly 40 includes a first blade 41 and a second blade 42.
  • the difference between the first blade 41 in this embodiment and the first blade 21 in the first embodiment is only the structure of the first mounting hole 411c.
  • the second blade 42 in this embodiment is different from the first blade 42 in the first embodiment.
  • the two blades 22 differ only in the structure of the second mounting hole 421c.
  • the blade assembly 40 further includes a bracket 44 having substantially the same structure as that in the first embodiment.
  • the structures in the pruning machine 100 of the first embodiment that are compatible with this embodiment can be applied to this embodiment. Only the differences between this embodiment and the first embodiment will be described below.
  • the pruning machine also includes a stopper 43 for restricting the first body portion 411 from disengaging from the first connection portion 414.
  • the blade assembly 40 further includes a pressing plate 47 for press-fitting the first body portion 411 and the second body portion 421 to the bracket 44.
  • the pressing plate 47 is provided with a press-fitting hole 471.
  • the press-fitting hole 471 has a first press-fitting portion 471a and a second press-fitting portion 471b having different sizes in the width direction.
  • the maximum size of the first press-fitting portion 471a in the width direction is smaller than The maximum size of the second press-fitting portion 471b in the width direction.
  • the first body portion 411 is formed with a first mounting hole 411c extending in a first linear direction
  • the second body portion 421 is formed with a second mounting hole 421c extending in a second linear direction.
  • the first mounting hole 411c and the first The two mounting holes 421c are both elongated holes.
  • the second type of screw 46 passes through the press-fitting hole 471, the first mounting hole 411c, and the second mounting hole 421c in order to mount the first body portion 411 and the second body portion 421 to the bracket 44.
  • the operator can remove the first body portion 411 and the second body portion 421 without moving the first body portion 411 and the second body portion 421 back and forth, which makes the operation easier; on the other hand, the first body portion 411 and the second body portion 421 have a simple structure and high strength.
  • a guide portion 471c is further provided at the connection between the first press-fit portion 471a and the second press-fit portion 471b, and the guide portion 471c can guide the second type of screw 46 to be moved by the first press-fit portion 471a Up to the second press-fitting portion 471b, the guide portion 471c can also guide the second type screw 46 from the second press-fitting portion 471b to the first press-fitting portion 471a.
  • the guide portion 471c is a hypotenuse.
  • the number of the press-fitting holes 471 is plural, and the guide portions 471c of two adjacent press-fitting holes 471 are hypotenuses having different inclination.
  • the guide portion 471c can guide a plurality of second-type screws 46 to sequentially engage with their corresponding second pressure-fitting portions 471b; and when the pressure plate 47 is removed, the guide portion 471c can guide a plurality of second
  • the similar screws 46 are sequentially disengaged from their corresponding second press-fitting portions 471b, so that the frictional force received by the press plate 47 during disassembly or installation can be reduced, and the operation performance can be improved.
  • the engagement of the second type screw 46 with the second press-fitting portion 471b means that the pressure plate 47 moves to a position where the second press-fitting portion 471b contacts the second type screw 46, and the second type screw 46 and the second press-fitting portion 471b disengagement means that the pressure plate 47 is moved to a position where the first press-fitting portion 471a is in contact with the second-type screw 46.
  • the present disclosure provides a pruning machine that enables an operator to quickly replace the first body portion and the second body portion in a blade assembly, and can reduce a user's use cost.

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Abstract

本公开公开了一种修枝机,其包括:刀片组件,包括第一刀片和第二刀片;机壳;原动机;传动装置;第一刀片包括:第一本体部和第一刀齿部;第二刀片包括:第二本体部和第二刀齿部;第一刀片还包括:第一连接组,包括第一驱动部和与第一本体部连接以使第一本体部随第一驱动部运动的第一连接部;第二刀片还包括:第二连接组,包括第二驱动部和与第二本体部连接以使第二本体部随第二驱动部运动的第二连接部;其中,第一连接部和第一本体部构成可拆卸连接,第二连接部和第二本体部构成可拆卸连接;第一连接部的至少部分位于机壳外。该修枝机能够使得用户快速拆卸第一本体部和第二本体部。

Description

修枝机 技术领域
本公开涉及一种园林类工具,具体涉及一种修枝机。
背景技术
修枝机作为一种园林类工具,其被广泛的用于修剪灌木、绿篱等植被。
修枝机通常包括:机壳、原动机、传动装置以及刀片组件,其中,原动机和传动装置被设置在机壳内,刀片组件的一部分位于机壳内、另一部分向前伸出至机壳外。其中,机壳包括主体部和维修盖,维修盖设置在主体部的下侧,维修盖与主体部对接时围绕形成容纳原动机以及传动装置的容纳腔,刀片组件部分设置在容纳腔内,维修盖和主体部通常采用多个螺钉进行连接,安装维修盖的螺钉的数目一般是6至8个。刀片组件包括:第一刀片、第二刀片和支架,第一刀片和第二刀片通过螺钉安装至支架,安装第一刀片和第二刀片的螺钉的数目通常需要6至10个。
我们知道刀片组件在反复切割植被的过程中会发生严重的磨损,因此操作者需要经常更换刀片组件。对于现有的修枝机而言,操作者更换刀片组件时需要先拆卸维修盖,然后再将第一刀片和第二刀片从支架上拆卸下来,整个拆卸过程中,操作者通常需要拆卸12至18个螺钉,拆卸一个螺钉通常需要20秒左右,这样仅仅是拆卸螺钉就需要4至10分钟,然后还需要再安装新的第一刀片和第二刀片,整个拆装的过程大概需要20分钟至半个小时,这将严重降低操作者的工作效率。而且,将维修盖拆卸下来使得传动装置暴露出来,很可能为会使得传动装置中的各个零件的位置发生变动,这将进一步的延长更换刀片组件的时间,甚至还有可能降低传动装置的稳定性。再者,将整个第一刀片和第二刀片均进行更换将会大大的增加操作者的使用成本。
发明内容
为解决现有技术的不足,本公开的目的在于提供一种方便用户更换刀片组件且使用成本低的修枝机。
为了实现上述目标,本公开采用如下的技术方案:
一种修枝机,包括:刀片组件,包括在相对运动时执行切割功能的第一刀片和第二刀片;机壳,形成有容纳腔;原动机,设置在所述容纳腔内;传动装置,用于在所述原动机和所述刀片组件之间实现动力的传递以驱动所述第一刀片和所述第二刀片产生相对运动;所述第一刀片包括:第一本体部,沿第一直线方向延伸;第一刀齿部,用于切割植被;所述第二刀片包括:第二本体部,沿第二直线方向延伸;第二刀齿部,用于切割植被;所述第一刀片还包括:第一连接组,包括与所述传动装置连接以将所述传动装置输出的驱动力引入所述第一刀片的第一驱动部和与所述第一本体部连接以使所述第一本体部随所述第一驱动部运动的第一连接部;所述第二刀片还包括:第二连接组,包括与所述传动装置连接以将所述传动装置输出的驱动力引入所述第二刀片的第二驱动部和与所述第二本体部连接以使所述第二本体部随所述第二驱动部运动的第二连接部;其中,所述第一连接部和所述第一本体部构成可拆卸连接,所述第二连接部和所述第二本体部构成可拆卸连接。
进一步地,所述第一连接部的至少一部分位于所述机壳外。
进一步地,所述修枝机还包括:能限制所述第一本体部脱离所述第一连接部且能限制所述第二本体部脱离所述第二连接部的限位件,所述限位件具有限位状态和解锁状态;在所述限位件位于所述限位状态时,所述限位件阻止所述第一本体部脱离所述第一连接部且阻止所述第二本体部脱离所述第二连接部;在所述限位件位于所述解锁状态时,所述限位件允许所述第一本体部脱离所述第一连接部且允许所述第二本体部脱离所述第二连接部。
进一步地,所述修枝机还包括:用于限制所述第一本体部脱离所述第一连接部的限位件,所述限位件具有限制所述第一本体部脱离所述第一连接部的限位状态和允许第一本体部脱离所述第一连接部的解锁状态,所述限位件部分位于机壳内,且所述限位件还包括至少部分能被操作者在不打开机壳的前提下操作到的操作部。
进一步地,所述第一连接部伸出至所述机壳外的部分在所述第一直线方向上的尺寸与所述第一本体部在沿所述第一直线方向上的尺寸的比值大于0且小于等于0.5。
进一步地,所述第一本体部与所述第一连接部构成沿垂直于所述第一直线的方向的可拆卸连接;所述第二本体部与所述第二连接部构成沿垂直于所述第二直线的方向的可拆卸连接。
进一步地,所述第一本体部在第一平面内延展,所述第一连接部在第二平面内延展,所述第一平面和第二平面平行且不重合;所述第二本体部在第三平面内延展,所述第二连接部在第四平面内延展,所述第三平面和第四平面平行且不重合。
进一步地,所述第一本体部和所述第一连接部在连接处存在高度差,所述第二本体部和所述第二连接部在连接处存在高度差。
进一步地,所述第一驱动部和所述第一连接部由一个零件一体成型;所述第二驱动部和所述第二连接部由一个零件一体成型。
进一步地,所述第一驱动部和所述第一连接部分别由两个不同的零件形成;所述第二驱动部和所述第二连接部分别由两个不同的零件形成。
进一步地,所述第一连接部形成有连接孔,所述第一本体部形成或者连接有能插入所述连接孔的连接件。
进一步地,所述第一连接部形成或者连接有连接件,第一本体部形成有能供所述连接件插入的配合孔。
进一步地,所述修枝机还包括:用于限制所述第一本体部脱离所述第一连接部的限位件,所述限位件具有限制所述第一本体部脱离所述第一连接部的限位状态和允许所述第一本体部脱离所述第一连接部的解锁状态,所述限位件至少部分位于所述机壳外;定义所述第一本体部脱离所述第一连接部的方向为第一方向;所述第一刀片设置在所述第二刀片的下侧;所述限位件阻止所述第一本体部沿所述第一方向脱离所述第一连接部,所述第一方向与所述第一直线相互垂直。
进一步地,所述修枝机还包括用于将所述限位件定位在所述锁定状态的螺钉,所述螺钉的数目小于等于2,所述螺钉位于机壳外。
进一步地,所述修枝机还包括用于将所述限位件定位在所述锁定状态的螺钉,所述螺钉的数目为1。
进一步地,所述修枝机还包括:第一类螺钉,沿垂直于所述第一直线的第三直线方向穿过所述限位件;第二类螺钉,沿垂直于所述第一直线的第四直线方向穿过第一刀片和第二刀片且不穿过所述限位件;所述第一本体部上形成有:供所述第二类螺钉穿过的安装孔,所述安装孔包括允许所述第二类螺钉沿平行于所述第一直线的方向滑动且阻止所述第二类螺钉穿过的滑动部和允许所述第一本体部沿垂直于所述第一直线的方向脱离第二类螺钉的通孔部。
进一步地,所述滑动部在宽度方向上的最大尺寸小于通孔部在宽度方向上的最大尺寸。
进一步地,所述安装孔还形成有设置在所述滑动部和所述通孔部的连接处的引导部;在安装所述第一本体部时,所述引导部引导多个所述第二类螺钉依次与其相对应的安装孔啮合;在拆卸所述第一本体部时,所述引导部引导多个所述第二类螺钉依次与其相对应的安装孔脱离啮合。
进一步地,所述第一本体部和所述第一连接部的连接处位于所述机壳外;所述第二本体部和所述第二连接部的连接处位于所述机壳外。
进一步地,所述第一本体部和所述第一连接部构成在不打开机壳时也能被分离的可拆卸连接。
进一步地,所述修枝机还包括用于将所述第一本体部沿垂直于所述第一直线的方向限位件;或者,所述修枝机还包括用于将所述第一连接部沿垂直于所述第一直线的方向抵压至所述第一本体部的限位件。
进一步地,在沿垂直于所述第一直线的方向上,所述第一刀片设置在所述第二刀片的下侧;所述第一本体部与所述机壳之间的最小距离大于等于0且小于等于300mm;所述第二本体部与所述机壳之间的最小距离大于等于0且小于等于300mm。
进一步地,所述第一本体部位于所述机壳之外,所述第二本体部位于所述机壳之外。
进一步地,所述第一连接部的一部分位于所述机壳之外、另一部分伸入到所述机壳内;所述第二连接部的一部分位于所述机壳之外、另外一部分伸入到所述机壳内。
进一步地,所述第一本体部能沿垂直于所述第一直线的方向脱离所述第一连接部;所述限位件为用于限制所述第一本体部沿垂直于所述第一直线的方向脱离所述第一连接部的压板;所述压板的一部分位于所述机壳外、另一部分位于所述机壳内。
进一步地,所述修枝机还包括用于对所述第一刀片和所述第二刀片构成支撑的支架;所述压板通过第一类螺钉固定至所述支架,所述第一类螺钉的数目小于三个;在所述第一类螺钉被拆卸时,所述压板能沿平行于所述第一直线的方向脱离所述机壳。
进一步地,所述修枝机还包括用于将所述第一本体部和第二本体部连接至所述支架的第二类螺钉;所述第一本体部沿所述第一直线方向相对所述第二类螺钉至少具有第一位置和第二位置,在所述第一本体部位于所述第一位置时,所述第二类螺钉阻止所述第一本体部脱离所述支架,在所述第一本体部位于所述第二位置时,所述第二类螺钉允许所述第一本体部脱离所述支架。
进一步地,所述第二本体部沿所述第二直线方向相对所述第二类螺钉至少具有第三位置和第四位置,在所述第二本体部位于所述第三位置时,所述第二类螺钉阻止所述第二本体部脱离所述支架,在所述第二本体部位于所述第四位置时,所述第二类螺钉允许所述第二本体部脱离所述支架。
进一步地,所述限位件为:用于限制所述第一本体部沿垂直于所述第一直线的方向脱离所述第一连接部的压板;所述压板通过第一类螺钉固定至所述刀片组件,所述第一类螺钉位于所述机壳外,在所述第一类螺钉被拆卸时,所述压板能被用户从所述机壳外在不打开所述机壳的情况下操作以脱离所述刀片组件。
进一步地,所述机壳包括可拆卸的连接在一起的主体部和维修盖,在所述维修盖被拆卸时,所述机壳内部的结构至少部分露出以供更换或维修;所述第一本体部和所述第一连接部构成在不拆卸所述维修盖的情况下也能被分离的可拆卸连接。
进一步地,所述第一本体部和所述第二本体部由第一材料制成,所述第一连接部和所述第二连接部由不同于所述第一材料的第二材料制成。
进一步地,所述修枝机还包括用于将所述第一本体部沿与所述第一直线倾 斜相交的方向抵压至所述第一连接部的限位件;或者,所述修枝机还包括用于将所述第一连接部沿与所述第一直线倾斜相交的方向抵压至所述第一本体部的限位件。
本公开的有益之处在于:该修枝机能够使得操作者快速的更换刀片组件中的第一本体部和第二本体部,且能够降低使用者的使用成本。
附图说明
图1是本公开第一实施例的修枝机的立体图;
图2是图1中的修枝机的平面图;
图3是图2中的修枝机的剖视图;
图4是图3中的修枝机的部分结构的放大图;
图5是图3的修枝机中的偏心组件和刀片组件的部分结构的剖视图;
图6是图5中的刀片组件的部分结构的放大图;
图7是图2的修枝机中的偏心组件和刀片组件的立体图;
图8是图2的修枝机中的偏心组件和刀片组件的爆炸图;
图9是图8中的刀片组件中的第一刀片和第二刀片的爆炸图;
图10是图8中的刀片组件中的第一本体部的部分结构的平面图;
图11是图8中的刀片组件中的第二本体部的部分结构的平面图;
图12是图8中的刀片组件中的支架的平面图;
图13是图1的修枝机在第一本体部和第二本体部被拆卸下的立体图;
图14是图1的修枝机在第一类螺钉被拆卸下的立体图;
图15是图1的修枝机在限位件被抽出后的立体图;
图16是图1的修枝机在限位件被拆除后的立体图;
图17是图1的修枝机在第一本体部脱离第一连接部时的立体图;
图18是图1的修枝机在第一本体部被拆除后的立体图;
图19是图1的修枝机在第二本体部脱离第二连接部时的立体图;
图20是图1的修枝机在第二本体部被拆除后的立体图;
图21是本公开第二实施例的修枝机中的部分机壳和刀片组件的立体图;
图22是图21所示结构的剖视图;
图23是图21所示结构在第一本体部和第二本体部被拆卸下的立体图;
图24是图23中的压板的结构示意图。
具体实施方式
图1所示的第一实施例的修枝机100用于供操作者操作以切割各种灌木、绿篱等植被。
如图1和图2所示,修枝机100包括:机壳11和至少部分设置在机壳11外部的刀片组件20。如图3和图4所示,修枝机100还包括:原动机12和传动装置13,该原动机12具体可以为电机。其中,刀片组件20包括能产生相对运动的第一刀片21和第二刀片22。如图5至图8所示,第一刀片21包括沿第一直线101方向延伸的第一本体部211,第二刀片22包括沿第二直线102方向延伸的第二本体部221,当第二刀片22和第二刀片22相对的进行往复运动时,刀片组件20能够执行切割植被的功能。原动机12用于驱动第一刀片21和第二刀片22产生相对运动,原动机12包括能绕原动机轴线103转动的原动机轴121,原动机轴线103还与第一直线101相互垂直,原动机轴线103也与第二直线102相互垂直。传动装置13用于在原动机12和刀片组件20之间实现动力的传递从而实现驱动第一刀片21和第二刀片22产生相对运动。机壳11还围绕形成有容纳腔111,原动机12和传动装置13均设置在容纳腔111内,刀片组件20一部分位于容纳腔111内、另一部分位于容纳腔111外。
为了方便说明本公开的技术方案,还定义了如图1中箭头所示的上、下、前、后、左以及右。本实施中所说的上下左右均以图1和图2中的修枝机100所在的状态为例。
机壳11包括:主体部112和维修盖113,主体部112围绕形成容纳腔111,且主体部112围绕而成的容纳腔111向下敞开,维修盖113在主体部112的下侧封闭容纳腔111敞开的部分以封闭容纳腔111。维修盖113可以通过多个螺钉114可拆卸的连接至主体部112。当操作者需要对容纳腔111内的结构,例如传动装 置13进行维修时,操作者可以先拧下螺钉114,然后将维修盖113拆卸下来,当维修盖113拆卸下来后,容纳腔111向下敞开,传动装置13露出,这时操作者可以对传动装置13进行更换或者维修。刀片组件20向前伸出至机壳11外部,从而使得刀片组件20能够切割到植被。
传动装置13包括:减速组件131和偏心组件132,减速组件131用于将原动机12输出的转速降低以输出至偏心组件132,在本实施例中,减速组件131为行星齿轮系。偏心组件132包括:偏心件132a,偏心件132a包括中心孔132b、第一偏心部132c和第二偏心部132d,第一偏心部132c和第二偏心部132d分别相对中心孔132b偏心设置,第一偏心部132c用于与第一刀片21连接,第二偏心部132d用于与第二刀片22连接。在沿平行于第一直线101的前后方向上,第一偏心部132c相对中心孔132b向后偏,第二偏心部132d相对中心孔132b向前偏。这样,当减速组件131驱动偏心件132a转动时,第一偏心部132c驱动第一刀片21向前运动时,第二偏心部132d则驱动第二刀片22向后运动,而当第一偏心部132c驱动第一刀片21向后运动时,第二偏心部132d则驱动第二刀片22向前运动,从而第一刀片21和第二刀片22的运动方向相反,进而能够使得第一刀片21和第二刀片22构成的整体能够实现切割的功能。
如图5至图11所示,第一刀片21包括:第一本体部211、第一刀齿部212和第一连接组21a,第一连接组21a包括第一驱动部213和第一连接部214。第一本体部211沿第一直线101方向延伸。第一刀齿部212用于切割植被,第一刀齿部212的数目为多个,多个第一刀齿部212分别设置在第一本体部211的宽度方向上的相对的两侧,也即是在第一本体部211的左侧和右侧均设置第一刀齿部212,在本实施例中,第一本体部211左侧的第一刀齿部212相对第一本体部211右侧的第一刀齿部212错位。或者说,第一本体部211左侧的第一刀齿部212和右侧的第一刀齿部212没有对齐。或者说,在沿第一直线101方向上,第一本体部211左侧的第一刀齿部212设置在右侧的两个相邻的第一刀齿部212之间。第一刀齿部212和第一本体部211一体成型。第一驱动部213用于与第一偏心部132c相互配合并连接,第一驱动部213用于将第一偏心部132c的转动转化成第一刀片21沿第一直线101方向的往复运动,从而将传动装置13输出的动力引入到第一刀片21中。第一驱动部213上形成有第一驱动孔213a,第一偏心部132c设置在第一驱动孔213a内,并能够沿着第一驱动孔213a的孔 壁活动,当第一偏心部132c在第一驱动孔213a内活动时将会驱动第一驱动部213沿第一直线101方向往复运动。第一连接部214用于连接第一驱动部213和第一本体部211,从而使得第一本体部211随着第一驱动部213一并往复运动。
第二刀片22包括:第二本体部221、第二刀齿部222和第二连接组22a,第二连接组22a包括第二驱动部223和第二连接部224。第二本体部221沿第二直线102方向延伸。第二刀齿部222用于切割植被,第二刀齿部222的数目为多个,多个第二刀齿部222分别设置在第二本体部221的宽度方向上的相对的两侧,也即是在第二本体部221的左侧和右侧均设置第二刀齿部222,在本实施例中,第二本体部221左侧的第二刀齿部222相对第二本体部221右侧的第二刀齿部222错位。或者说,第二本体部221左侧的第二刀齿部222和右侧的第二刀齿部222没有对齐。或者说,在沿第二直线102方向上,第二本体部221左侧的第二刀齿部222设置在右侧的两个相邻的第二刀齿部222之间。第二刀齿部222和第二本体部221一体成型。第二驱动部223用于与第二偏心部132d相互配合并连接,第二驱动部223用于将第二偏心部132d的转动转化成第二刀片22沿第二直线102方向的往复运动,从而将传动装置13输出的动力引入到第二刀片22中。第二驱动部223上形成有第二驱动孔223a,第二偏心部132d设置在第二驱动孔223a内,并能够沿着第二驱动孔223a的孔壁活动,当第二偏心部132d在第二驱动孔223a内活动时将会驱动第二驱动部223沿第二直线102方向往复运动。第二连接部224用于连接第二驱动部223和第二本体部221,从而使得第二本体部221随着第二驱动部223一并往复运动。
第一本体部211与第一驱动孔213a的中心之间的距离L1大于等于80mm且小于等于500mm,第二本体部221与第二驱动孔223a的中心之间的距离L2大于等于80mm且小于等于500mm。进一步而言,第一本体部211与第一驱动孔213a的中心之间的距离L1大于等于130mm且小于等于320mm,第二本体部221与第二驱动孔223a的中心之间的距离L2大于等于130mm且小于等于320mm。这样,即是是第一本体部211和第一连接部214的连接处位于机壳11内,也方便在机壳11上设置相应的窗口以使得第一本体部脱离第一连接部214。
我们知道,对于刀片组件20而言,第一刀齿部212和第二刀齿部222在反复切割植被的过程中比较容易磨损、变钝。在本实施例中,第一连接部214和第一本体部211构成可拆卸连接,第二连接部224和第二本体部221也构成可 拆卸连接。第一连接部214和第二连接部224中的一个或者两个的至少部分位于机壳11外。也即是说,第一连接部214至少部分位于机壳11外,或者第二连接部224至少部分位于机壳11外,或者第一连接部214和第二连接部224构成的整体的至少一部分位于机壳11外。这样当第一刀齿部212和第二刀齿部222被磨损时,操作者可以在不拆卸维修盖113的情况下从机壳11的外部就能快速的拆卸第一本体部211和第二本体部221,并更换新的第一本体部211和第二本体部221,避免了拆卸下维修盖113将机壳11内部的零件拆卸下来然后再安装的繁琐的过程,从而,操作者能够快速更换第一本体部211和第二本体部221,从而提高了操作的便捷性。而且操作者在更换第一刀齿部212和第二刀齿部222时无需更换第一连接组21a和第二连接组22a,从而大大的节约了修枝机100的使用成本。
更进一步而言,在本实施例中,作为一种实施方式,第一本体部211和第一连接部214的连接处位于机壳11的外侧,第二本体部221和第二连接部224的连接处也位于机壳11的外侧。第一本体部211和第二本体部221均位于机壳11外。在沿平行于第一直线101的方向上,第一本体部211和机壳11之间的最小距离L3大于0且小于等于300mm,第二本体部221和机壳11间的最小距离L4大于0且小于等于300mm。进一步而言,在本实施例中,第一本体部211设置在第二本体部221的下侧,第一本体部211和维修盖113之间的最小距离L3大于0且小于等于50mm,第二本体部221和维修盖113之间的最小距离L4大于50mm且小于等于200mm。这样能够更方便的使得操作者分离第一本体部211和第一连接部214,以及分离第二本体部221和第二连接部224。
第一连接部214伸出至机壳11外的部分在第一直线101方向上的尺寸L5与第一本体部211在沿第一直线101方向上的尺寸L6的比值大于0且小于等于0.5。进一步而言,第一连接部214伸出至机壳11外的部分在第一直线101方向上的尺寸L5与第一本体部211在沿第一直线101方向上的尺寸L6的比值大于0.02且小于等于0.25。这样,一方面,第一连接部214伸出机壳11外的部分足够长从而能够更稳定的带动第一本体部211往复运动,避免第一本体部211晃动;另一方面,也避免第一连接部214伸出机壳11外的部分的长度过长而造成第一本体部211的有效切割部分不足而影响切割效率。可以理解的,第一本体部211和第一连接部214的连接处也不限制于位于机壳11外,第二本体部221 和第二连接部224的连接处也不限制于位于机壳11外。事实上,作为另一种实施方式,第一本体部211和第一连接部214的连接处也可以位于机壳11内,第二本体部221和第二连接部224的连接处也可以位于机壳11内,这时只要在机壳11上设置一些合理的能够使得第一本体部211和第一连接部214分离以及能够使得第二本体部221和第二连接部224分离的结构即可。这样的话,可以理解的,第一连接部214和第一本体部211构成可拆卸连接,第一连接部214和第一本体部211的连接处在垂直于第一直线101的平面内的投影位于第一偏心部132c在该平面内的投影之外,进一步而言,第一连接部214和第一本体部211的连接处在垂直于第一直线101的平面内的投影位于偏心组件132在该平面内的投影之外;第二连接部224和第二本体部221构成可拆卸连接,第二连接部224和第二本体部221的连接处在垂直于第二直线102的平面内的投影位于第二偏心部132d在该平面内的投影之外,进一步而言,第二连接部224和第二本体部221的连接处在垂直于第二直线102的平面内的投影位于偏心组件132在该平面内的投影之外。进一步而言,第一本体部211和所述第一连接部214的连接处与第一偏心部132c的转动轴线之间的最小距离L7大于等于80mm且小于等于500mm。事实上,在本实施例中,第一偏心部132c的转动轴线也即是原动机轴121的原动机轴线103。
以上的两种方式均能够使得第一本体部211和第一连接部214构成在不拆卸维修盖113时也能被分离的可拆卸连接,还能使得第二本体部221和第二连接部224构成在不拆卸维修盖113时也能被分离的可拆卸连接。具体的实施方式还并不以上述两种方式为限。
在本实施例中,修枝机100还包括用于限制第一本体部211脱离第一连接部214的限位件23,限位件23也能限制第二本体部221脱离第二连接部224,限位件23具有限制第一本体部211脱离第一连接部214的限位状态和允许第一本体部211脱离第一连接部214的解锁状态,限位件23至少部分设置在机壳11外。限位件23能被操作者从机壳11外部操作以控制其由限位状态切换至解锁状态。在限位件23位于限位状态时,限位件23阻止第一本体部211脱离第一连接部214且阻止第二本体部221脱离第二连接部224;在限位件23位于解锁状态时,限位件23允许第一本体部211脱离第一连接部214且允许第二本体部221脱离第二连接部224。
具体而言,机壳11还向前敞开,从而刀片组件20能够向前伸出至机壳11外。第一刀片21的第一本体部211位于机壳11外,第一本体部211和第一刀齿部212构成的整体基本在一个与第一直线101平行的第一平面内延展。第一连接部214的一部分位于机壳11内、另一部分位于机壳11外。也即是说,第一连接部214至少部分位于机壳11内,且第一连接部214还向前伸出至机壳11外,这样能够使得第一连接部214和第一本体部211在机壳11外部构成可拆卸的连接。也即是说,第一本体部211和第一连接部214的连接处位于机壳11外。第一连接部214还基本在一个与第一直线101平行的第二平面内延展,第一平面和第二平面相互平行且不重合,也即是说,第一本体部211和第一连接部214在高度方向上存在高度差。这样,在本实施例中,可以使得第一连接部214和第一本体部211构成在沿垂直于第一直线101的方向的可拆卸连接,也即是说第一连接部214和第一本体部211构成沿高度方向的可拆卸连接。这样,第一本体部211能够向下脱离第一连接部214。具体而言,在本实施例中,第一连接部214形成有一个在高度方向上贯穿自身的第一连接孔214a,第一本体部211形成有沿高度方向贯穿自身的第一配合孔211a,刀片组件20还包括沿高度方向依次穿过第一连接孔214a和第一配合孔211a的第一连接件215,第一连接件15可以为一个销,在本实施例中,第一连接件215具体为一个铆钉,该铆钉与第一连接孔214a过盈配合,且铆钉还与第一配合孔211a间隙配合。当然,铆钉也可也与第一配合孔211a过盈配合,而与第一连接孔214a间隙配合。这样,当需要将第一本体部211和第一连接部214分离时,只需向下抬起第一本体部211与第一连接部214连接的部位,即能使得第一本体部211向下脱离第一连接部214。在本实施例中,第一驱动部213和第一连接部214分别由两个不同的零件形成,第一驱动部213和第一连接部214分开形成,它们两者构成固定连接。当然,可以理解的,在其它实施例中,第一驱动部213和第一连接部214也可以由一个零件一体成型。或者,在其它实施例中,第一驱动部213和第一连接部214还可以活动连接,从而使得第一驱动部213相对第一连接部214摆动。可以理解的,操作者在拆卸刀片组件20时可能会将修枝机100翻转过来,也即是使得修枝机100的下部的维修盖113朝上,这时,对应的,操作者可能需要向上抬起第一本体部211以使得其脱离第一连接部214。在本实施例中,第一配合孔211a中还设置有一个更为耐磨的环形件,环形件可拆卸的设置在该第一配 合孔内,环形件具体为第一衬套211b,第一衬套211b的耐磨性大于第一配合孔211a的耐磨性。当然可以理解的,当铆钉与第一配合孔211a过盈配合时,第一衬套211b也可以设置在第一连接孔214a中。另外,在其它实施例中,第一连接件215也可以与第一连接部214或者第一本体部211一体成型,例如,第一本体部211也可以一体成型有凸起结构,第一连接部214形成有能供凸起结构嵌入的槽或孔;或者,凸起结构还可以形成在第一连接部214上,第一本体部211形成有能供凸起结构嵌入的槽或孔。
第二刀片22的第二本体部221位于机壳11外,第二本体部221和第二刀齿部222构成的整体基本在一个与第二直线102平行的第三平面内延展。第二连接部224的一部分位于机壳11内、另一部分位于机壳11外。也即是说,第二连接部224至少部分位于机壳11内,且第二连接部224还向前伸出至机壳11外,这样能够使得第二连接部224和第二本体部221在机壳11外部构成可拆卸的连接。也即是说,第二本体部221和第二连接部224的连接处位于机壳11外。第二连接部224还基本在一个与第二直线102平行的第四平面内延展,第四平面和第三平面相互平行且不重合,也即是说,第二本体部221和第二连接部224在高度方向上存在高度差。这样,在本实施例中,可以使得第二连接部224和第二本体部221构成沿垂直于第二直线102的方向的可拆卸连接,也即是说第二连接部224和第二本体部221构成沿高度方向的可拆卸连接。这样,第二本体部221能够向下脱离第二连接部224。具体而言,在本实施例中,第二连接部224形成有一个在高度方向上贯穿自身的第二连接孔224a,第二本体部221形成有沿高度方向贯穿自身的第二配合孔221a,刀片组件20还包括沿高度方向依次穿过第二连接孔224a和第二配合孔221a的第二连接件225,第二连接件225也可以为一个销,在本实施例中,第二连接件225具体为一个铆钉,该铆钉与第二连接孔224a过盈配合,且铆钉还与第二配合孔221a间隙配合。当然,铆钉也可也与第二配合孔221a过盈配合,而与第二连接孔224a间隙配合。这样,当需要将第二本体部221和第二连接部224分离时,只需向下拨动第二本体部221与第二连接部224连接的部位,即能使得第二本体部221向下脱离第二连接部224。在本实施例中,第二驱动部223和第二连接部224分别由两个不同的零件形成,第二驱动部223和第二连接部224分开形成,它们两者构成固定连接。当然,可以理解的,在其它实施例中,第二驱动部223和第二连接部224也可 以由一个零件一体成型。或者,在其它实施例中,第二驱动部223和第二连接部224还可以活动连接,从而使得第二驱动部223相对第二连接部224摆动。可以理解的,操作者在拆卸刀片组件20时可能会将修枝机100翻转过来,也即是使得修枝机100的下部的维修盖113朝上,这时,对应的,操作者可能需要向上抬起第二本体部221以使得其脱离第二连接部224。在本实施例中,第二配合孔221a中还设置有一个更为耐磨的环形件,该环形件具体为第二衬套221b,第二衬套221b的耐磨性大于第二配合孔221a的孔壁的耐磨性。另外,在其它实施例中,第二连接件225也可以与第二连接部224或者第二本体部221一体成型,例如,第二本体部221也可以一体成型有凸起结构,第二连接部224形成有能供凸起结构嵌入的槽或孔;或者,凸起结构还可以形成在第二连接部224上,第二本体部221形成有能供凸起结构嵌入的槽或孔。
在本实施例中,第一本体部211和第一连接部214之间在连接处存在高度差,一方面,使得第一本体部211和第一连接部214构成可拆卸连接的结构更简单,也更容易实现第一本体部211和第一连接部214之间的可拆卸连接;又一方面,第一本体部211和第一连接部214相互叠加使得它们两者构成的整体在连接处的厚度较厚,从而提高了连接强度,且也使得第一刀片21更耐磨;再者,因为第一本体部211和第一连接部214之间在连接处存在高度差,从而使得可以通过销插入到第一配合孔211a中实现第一本体部211和第一连接部214的可拆卸连接,从而有利于降低连接处的配合间隙,从而连接处的噪音、振动能够得到明显的改善。总而言之,第一本体部211和第一连接部214之间有高度差的连接,可以将连接处的配合面做厚,这样在提高连接强度、耐磨性上均有很大的好处。另外,有高度差的连接,便于实现销与孔的连接方式,该种连接方式便于实现高尺寸精度的精密配合,精密配合有助于降低连接处的配合间隙,从而连接处的噪音、振动有很明显的优势。
在本实施例中,在沿第一直线方向上,第一本体部211与第一连接部214的连接部和第二本体部与第二连接部的连接处间隔一定距离,从而能够使得刀片组件的结构更问题,振动效果
限位件23用于阻止第一本体部211脱离第一连接部214。具体而言,定义第一本体部211脱离第一连接部214的方向为第一方向,限位件23则为能阻止第一本体部211沿第一方向脱离第一连接部214的压板,第一本体部211设置 在压板和第一连接部214之间,第一方向与第一直线101相互垂直,事实上,第一方向也即是高度方向,这样,限位件23将第一本体部211沿垂直于第一直线101的方向抵压至第一连接部214。当然,可以理解的,限位件23也可以将第一本体部211沿与第一直线101倾斜相交的方向抵压至第一连接部214。第一刀片21设置在第二刀片22的下侧,限位件23阻止第一本体部211向下脱离第一连接部214。当然,可以理解的,在其它实施例中,在沿上下方向上,第一连接部和第一本体部的位置也可以互换,也即是说,也可以使得第一连接部被设置在压板和第一本体部之间,这时,限位件将第一连接部沿垂直于第一直线的方向或者沿与第一直线倾斜相交的方向抵压至第一本体部。
限位件23沿平行于第一直线101的方向延伸,限位件23设置在第一刀片21的下侧抵持第一刀片21,以避免第一本体部211脱离第一连接部214。限位件23部分设置在机壳11内,限位件23还向前伸出至机壳11外。刀片组件20还包括:用于支撑第一刀片21和第二刀片22的支架24,限位件23被安装至支架24。刀片组件20还包括用于将限位件23定位在锁定状态的的紧固件,该紧固件具体为第一类螺钉25,第一类螺钉25将限位件23固定至支架24。当第一类螺钉25被操作者拧下或拧松时,则操作者可以向前抽出限位件23,使得限位件23切换至解锁状态以解除对第一本体部211和第一连接部214的限制,这时操作者可以使得第一本体部211脱离第一连接部214。其中,限位件23一部分位于机壳11内,另一部分伸出至机壳11外,限位件23位于机壳11外能被用户操作以抽出限位件23的部位可以被定义为操作部231。操作部231能被操作者在不拆卸机壳11的前提下操作到。在本实施例中,第一类螺钉25设置在机壳11外,这样,操作者则无需拆卸维修盖113,也无需打开机壳11即能拆卸刀片组件20中的第一本体部211,从而使得操作者的使用更为方便。在本实施例中,第一类螺钉25的数目为1个,当然,可以理解的,第一类螺钉25的数目也不限制为1个,也可以为2个,当然,为了拆卸更为方便,可以限制第一类螺钉25的数目小于三个。这样,当用户需要更换第一本体部211和第二本体部221时,用户只需拆卸一至两个螺钉,从而提高了操作的便捷性。
更具有而言,在本实施例中,设置在下侧的第一刀片21的第一本体部211的长度大于位于上侧的第二刀片22的第二本体部221的长度,第一连接部214的长度小于第二连接部224的长度,这样第一连接部214和第一本体部211的 连接处位于第二连接部224和第二本体部221的连接处的后侧。第一类螺钉25沿垂直于第一直线101的第三直线104方向依次穿过限位件23、第一本体部211和第二连接部224,然后将限位件23、第一刀片21和第二刀片22安装至支架24上。
我们知道第一本体部211在沿第一直线101方向上的长度较长,第二本体部221在沿第二直线102方向上的长度也比较长,因为为了在沿高度方向定位第一本体部211和第二本体部221,刀片组件20还包括用于将第一本体部211和第二本体部221定位至支架24的紧固件,该紧固件具体为第二类螺钉26。第二类螺钉26沿垂直于第一直线101的第四直线105方向依次穿过第一本体部211和第二本体部221,从而能够避免第一本体部211和第二本体部221在高度方向上贴合以提高切割能力,还能够避免第一本体部211和第二本体部221晃动。第二类螺钉26的数目为多个,例如本实施例中,第二类螺钉26的数目为7个。第二类螺钉26不穿过限位件23,从而使得第二类螺钉26在能够起到定位第一本体部211和第二本体部221的同时还不会对限位件23构成限制。
具体而言,第一本体部211上形成有第一安装孔211c,第二类螺钉26穿过第一安装孔211c以将第一本体部211安装至支架24。第一安装孔211c包括允许第二类螺钉26沿平行于第一直线101方向滑动且阻止第二类螺钉26穿过的第一滑动部211d和允许第一本体部211沿高度方向脱离第二类螺钉26的第一通孔部211e。具体而言,第二类螺钉26包括以第四直线105为中心的圆柱形的杆部和设置在杆部一端的头部,头部径向尺寸相对杆部的径向尺寸较大。而第一滑动部211d为沿第一直线101方向延伸的狭长孔,第一滑动部211d在宽度方向上的尺寸大于第二类螺钉26的杆部在宽度方向上的尺寸且小于头部在该方向上的尺寸。其中,也可以使得第二类螺钉26上连接垫片来阻止第一本体部211脱离第二类螺钉26。而第一通孔部211e设置在第一滑动部211d的一端,第一通孔部211e在宽度方向上的尺寸大于头部或者垫片在宽度方向上的尺寸。第一通孔部211e在宽度方向上的最大尺寸还大于第一滑动部211d在宽度方向上的最大尺寸。从而当第二类螺钉26穿过第一安装孔211c后连接至支架24时,在第二类螺钉26与第一滑动部211d配合时,第一本体部211则不能沿高度方向脱离第二类螺钉26,而当第一本体部211沿第一直线101方向滑动至第一通孔部211e与第二类螺钉26配合时,则第一本体部211能沿高度方向脱离第二类螺钉 26。在本实施例中,第一通孔部211e为圆形孔,第一通孔部211e的直径大于第一滑动部211d在宽度方向上的最大尺寸。这样,第一本体部211沿第一直线101方向相对第二类螺钉26至少具有第一位置和第二位置,在第一本体部211位于第一位置时,第二类螺钉26阻止第一本体部211脱离支架24,在第一本体部211位于第二位置时,第二类螺钉26允许第一本体部211脱离支架24。在本实施例中,为了提高刀片组件20的强度,圆形孔的圆心不在第一直线101上,圆形孔不关于第一直线101对称。相对于第一本体部211左侧的第一刀齿部212而言,圆形孔与左侧的第一刀齿部212对齐,而相对于右侧的第一刀齿部212而言,圆形孔设置在右侧的相邻的两个第一刀齿部212之间,这时,为了避免第一本体部211的位于圆形孔右侧的部位的强度不够,因此使得圆形孔向左偏,也即是圆形孔的中心或者圆心设置在第一直线101的左侧。
第二本体部221上形成有第二安装孔221c,第二类螺钉26穿过第二安装孔221c以将第二本体部221安装至支架24。第二安装孔221c包括允许第二类螺钉26沿平行于第二直线102方向滑动且阻止第二类螺钉26穿过的第二滑动部221d和允许第二本体部221沿高度方向脱离第二类螺钉26的第二通孔部221e。第二滑动部221d为沿第二直线102方向延伸的狭长孔,第二滑动部221d在宽度方向上的尺寸大于第二类螺钉26的杆部在宽度方向上的尺寸且小于头部或者垫片在该方向上的尺寸。而第二通孔部221e设置在第二滑动部221d的一端,第二通孔部221e在宽度方向上的尺寸大于头部或者垫片在宽度方向上的尺寸。第二通孔部221e在宽度方向上的最大尺寸还大于第二滑动部221d在宽度方向上的最大尺寸。从而当第二类螺钉26穿过第二安装孔221c后连接至支架24时,在第二类螺钉26与第二滑动部221d配合时,则第二本体部221不能沿高度方向脱离第二类螺钉26,而当第二本体部221沿第二直线102方向滑动至第二通孔部221e与第二类螺钉26配合时,则第二本体部221能沿高度方向脱离第二类螺钉26。在本实施例中,第二通孔部221e为圆形孔,第二通孔部221e的直径大于第二滑动部221d在宽度方向上的最大尺寸。这样,第二本体部221沿第二直线102方向相对第二类螺钉26至少具有第三位置和第四位置,在第二本体部221位于第三位置时,第二类螺钉26阻止第二本体部221脱离支架24,在第二本体部221位于第四位置时,第二类螺钉26允许第二本体部221脱离支架24。
在本实施例中,为了提高修枝机100的使用寿命,降低修枝机100的使用 成本,还使得第一本体部211和第二本体部221由第一材料制成,而第一连接部214和第二连接部224由不同于第一材料的第二材料制成,其中,第二材料相对第一材料更为耐磨,硬度更高。
如图8和图12所示,支架24包括:用于支撑第一连接部214的第一支撑部241和用于支撑第一本体部211的第二支撑部242,考虑到第一连接部214和第一本体部211在高度方向上存在高度差,因此,第一支撑部241和第二支撑部242在高度方向上也存在高度差,从而能够更好的支撑第一刀片21和第二刀片22,提高刀片组件20的稳定性以及可靠性。这样,第一类螺钉25可以穿过限位件23和第一支撑部241以将限位件23固定至第一支撑部241,第二类螺钉26可以穿过第一安装孔211c、第二安装孔221c以及第二支撑部242以将第一本体部211和第二本体部221固定至第二支撑部242。
以下具体介绍拆卸第一本体部211和第二本体部221的具体步骤:
如图13和图14所示,首先操作者拆卸第一类螺钉25;然后,如图14和图15所示,操作者向外抽出限位件23使得限位件23处于解锁状态;然后,如图13和图16所示,拆卸下限位件23;然后如图13、图16和图17所示,向下拨动第一本体部211和第一连接部214的连接处使得第一本体部211向下脱离第一连接部214,并向前推动第一本体部211使得第一本体部211向前运动至第二类螺钉26与第一通孔部211e配合的位置,这时将第一本体部211拆卸下来;然后,如图13、图18和图19所示,向下拨动第二本体部221和第二连接部224的连接处使得第二本体部221向下脱离第二连接部224,并向前推动第二本体部221使得第二本体部221向前运动至第二类螺钉26与第二通孔部221e配合的位置;然后,如图13、图19和图20所示,这时可以拆卸下第二本体部221。
在本实施例中,操作者更换第一本体部211和第二本体部221的过程中紧紧需要拆装一个第一类螺钉25,无需拆卸维修盖113,这样使得整个拆装过程只需要几分钟即能完成,提高了工作效率。
在本实施例中,通过将第一类螺钉25拆卸下来之后以拆卸限位件23,事实上,可以理解的,在其它实施例中,也可以在限位件23上设置如同第一安装孔211c结构类似的孔,这样,即使是不拆卸第一类螺钉25也能够实现将限位件23拆卸的功能;或者,在其它实施例中,限位件23不是通过螺钉进行固定,而是 通过一个卡扣等结构进行固定。
在本实施例中,参见图10,在第一通孔部211e和第一滑动部211d的连接处还设置有引导部211f,引导部211f能引导第一本体部211由第一滑动部211d与第二类螺钉26接触的位置移动至第一通孔部211e与第二类螺钉26接触的位置,引导部211f也能引导第一本体部211由第一通孔部211e与第二类螺钉26接触的位置移动至第一滑动部211d与第二类螺钉26接触的位置。在本实施例中,引导部211f为倒角,进一步为圆角。第一安装孔211c的数目为多个,相邻的两个第一安装孔211c的引导部211f为具有不同圆角半径的圆角。这样,当安装第一本体部211时,引导部211f能够引导多个第二类螺钉26先后依次与其相对应的第一安装孔211c啮合,也即是说,第一个第二类螺钉26与其相对应的第一安装孔211c啮合后,第二个第二类螺钉26再与其相对应的第一安装孔211c啮合,然后,第三个第二类螺钉26再与其相对应的第一安装孔211c啮合;而当拆卸第一本体部211时,引导部211f能够引导多个第二类螺钉26先后依次与其相对应的第一安装孔211c脱离啮合,从而能够降低第一本体部211在拆卸或者安装时受到的摩擦力,提高操作的性能。其中,第二类螺钉26与第一安装孔211c啮合指的是第一本体部211移动至第一通孔部211e与第二类螺钉26接触的位置,而第二类螺钉26与第一安装孔211c脱离啮合指的是第一本体部211移动至第一滑动部211d与第二类螺钉26接触的位置。
参见图11,在第二通孔部221e和第二滑动部221d的连接处还设置有引导部221f,引导部221f能引导第二本体部221由第二滑动部221d与第二类螺钉26接触的位置移动至第二通孔部221e与第二类螺钉26接触的位置,引导部221f也能引导第二本体部221由第二通孔部221e与第二类螺钉26接触的位置移动至第二滑动部221d与第二类螺钉26接触的位置。在本实施例中,引导部221f为倒角,进一步为圆角。第二安装孔221c的数目为多个,相邻的两个第二安装孔221c的引导部221f为具有不同圆角半径的圆角。这样,当安装第二本体部221时,引导部221f能够引导多个第二类螺钉26先后依次与其相对应的第二安装孔221c啮合;而当拆卸第二本体部221时,引导部221f能够引导多个第二类螺钉26先后依次与其相对应的第二安装孔221c脱离啮合,从而能够降低第二本体部221在拆卸或者安装时受到的摩擦力,提高操作的性能。其中,第二类螺钉26与第二安装孔221c啮合指的是第二本体部221移动至第二通孔部221e 与第二类螺钉26接触的位置,而第二类螺钉26与第二安装孔221c脱离啮合指的是第二本体部221移动至第二滑动部221d与第二类螺钉26接触的位置。
本公开还提出第二实施例的修枝机,该修枝机与第一实施例中的修枝机100具有相同的:机壳、原动机以及传动装置。如图21至图23所示,本实施例的修枝机还包括刀片组件40,刀片组件40包括第一刀片41和第二刀片42。其中,本实施例的第一刀片41与第一实施例中的第一刀片21的区别仅在于第一安装孔411c的结构不同,本实施例的第二刀片42与第一实施例中的第二刀片22的区别仅在于第二安装孔421c的结构不同。刀片组件40还包括与第一实施例中结构基本相同的支架44。第一实施例的修枝机100中的与本实施例相适应的结构均可以应用到本实施例中。以下仅介绍本实施例与第一实施例的区别部分。
在本实施例中,修枝机同样的包括用于限制第一本体部411脱离第一连接部414的限位件43。在本实施例中,刀片组件40还包括用于将第一本体部411和第二本体部421压装至支架44的压板47。压板47上设置有压装孔471,压装孔471具有在宽度方向上尺寸不同的第一压装部471a和第二压装部471b,第一压装部471a在宽度方向上的最大尺寸小于第二压装部471b在宽度方向上的最大尺寸。第一本体部411上形成有沿第一直线方向延伸的第一安装孔411c,第二本体部421上形成有沿第二直线方向延伸的第二安装孔421c,第一安装孔411c和第二安装孔421c均为狭长孔。第二类螺钉46依次穿过压装孔471,第一安装孔411c和第二安装孔421c以将第一本体部411和第二本体部421安装至支架44。这样,一方面,操作者无需前后移动第一本体部411和第二本体部421即能拆卸第一本体部411和第二本体部421,使得操作更为简单;另一方面,第一本体部411和第二本体部421的结构简单,强度高。
如图23和24所示,在第一压装部471a和第二压装部471b的连接处还设置有引导部471c,引导部471c能引导第二类螺钉46由第一压装部471a移动至第二压装部471b,引导部471c也能引导第二类螺钉46由第二压装部471b移动至第一压装部471a。在本实施例中,引导部471c为斜边。压装孔471的数目为多个,相邻的两个压装孔471的引导部471c为具有不同倾斜度的斜边。这样,当安装压板47时,引导部471c能够引导多个第二类螺钉46先后依次与其相对应的第二压装部471b啮合;而当拆卸压板47时,引导部471c能够引导多个第二类螺钉46先后依次与其相对应的第二压装部471b脱离啮合,从而能够降低 压板47在拆卸或者安装时受到的摩擦力,提高操作的性能。其中,第二类螺钉46与第二压装部471b啮合指的是压板47移动至第二压装部471b与第二类螺钉46接触的位置,而第二类螺钉46与第二压装部471b脱离啮合指的是压板47移动至第一压装部471a与第二类螺钉46接触的位置。
以上显示和描述了本公开的基本原理、主要特征和优点。本行业的技术人员应该了解,上述实施例不以任何形式限制本公开,凡采用等同替换或等效变换的方式所获得的技术方案,均落在本公开的保护范围内。
工业实用性
本公开提供了一种修枝机,该修枝机能够使得操作者快速的更换刀片组件中的第一本体部和第二本体部,且能够降低使用者的使用成本。

Claims (32)

  1. 一种修枝机,包括:
    刀片组件,包括在相对运动时执行切割功能的第一刀片和第二刀片;
    机壳,形成有容纳腔;
    原动机,设置在所述容纳腔内;
    传动装置,用于在所述原动机和所述刀片组件之间实现动力的传递以驱动所述第一刀片和所述第二刀片产生相对运动;
    所述第一刀片包括:
    第一本体部,沿第一直线方向延伸;
    第一刀齿部,用于切割植被;
    所述第二刀片包括:
    第二本体部,沿第二直线方向延伸;
    第二刀齿部,用于切割植被;
    其特征在于:
    所述第一刀片还包括:
    第一连接组,包括与所述传动装置连接以将所述传动装置输出的驱动力引入所述第一刀片的第一驱动部和与所述第一本体部连接以使所述第一本体部随所述第一驱动部运动的第一连接部;
    所述第二刀片还包括:
    第二连接组,包括与所述传动装置连接以将所述传动装置输出的驱动力引入所述第二刀片的第二驱动部和与所述第二本体部连接以使所述第二本体部随所述第二驱动部运动的第二连接部;
    其中,所述第一连接部和所述第一本体部构成可拆卸连接,所述第二连接 部和所述第二本体部构成可拆卸连接。
  2. 根据权利要求1所述的修枝机,其特征在于:
    所述第一连接部的至少一部分位于所述机壳外。
  3. 根据权利要求2所述的修枝机,其特征在于:
    所述修枝机还包括:能限制所述第一本体部脱离所述第一连接部且能限制所述第二本体部脱离所述第二连接部的限位件,所述限位件具有限位状态和解锁状态;在所述限位件位于所述限位状态时,所述限位件阻止所述第一本体部脱离所述第一连接部且阻止所述第二本体部脱离所述第二连接部;在所述限位件位于所述解锁状态时,所述限位件允许所述第一本体部脱离所述第一连接部且允许所述第二本体部脱离所述第二连接部。
  4. 根据权利要求2所述的修枝机,其特征在于:
    所述修枝机还包括:用于限制所述第一本体部脱离所述第一连接部的限位件,所述限位件具有限制所述第一本体部脱离所述第一连接部的限位状态和允许第一本体部脱离所述第一连接部的解锁状态,所述限位件部分位于机壳内,且所述限位件还包括至少部分能被操作者在不打开机壳的前提下操作到的操作部。
  5. 根据权利要求2所述的修枝机,其特征在于:
    所述第一连接部伸出至所述机壳外的部分在所述第一直线方向上的尺寸与所述第一本体部在沿所述第一直线方向上的尺寸的比值大于0且小于等于0.5。
  6. 根据权利要求2所述的修枝机,其特征在于:
    所述第一本体部与所述第一连接部构成沿垂直于所述第一直线的方向的可拆卸连接;
    所述第二本体部与所述第二连接部构成沿垂直于所述第二直线的方向的可拆卸连接。
  7. 根据权利要求2所述的修枝机,其特征在于:
    所述第一本体部在第一平面内延展,所述第一连接部在第二平面内延展,所述第一平面和第二平面平行且不重合;
    所述第二本体部在第三平面内延展,所述第二连接部在第四平面内延展,所述第三平面和第四平面平行且不重合。
  8. 根据权利要求2所述的修枝机,其特征在于:
    所述第一本体部和所述第一连接部在连接处存在高度差,所述第二本体部和所述第二连接部在连接处存在高度差。
  9. 根据权利要求2所述的修枝机,其特征在于:
    所述第一驱动部和所述第一连接部由一个零件一体成型;所述第二驱动部和所述第二连接部由一个零件一体成型。
  10. 根据权利要求2所述的修枝机,其特征在于:
    所述第一驱动部和所述第一连接部分别由两个不同的零件形成;所述第二驱动部和所述第二连接部分别由两个不同的零件形成。
  11. 根据权利要求2所述的修枝机,其特征在于:
    所述第一连接部形成有连接孔,所述第一本体部形成或者连接有能插入所述连接孔的连接件。
  12. 根据权利要求2所述的修枝机,其特征在于:
    所述第一连接部形成或者连接有连接件,第一本体部形成有能供所述连接件插入的配合孔。
  13. 根据权利要求12所述的修枝机,其特征在于:
    所述修枝机还包括:用于限制所述第一本体部脱离所述第一连接部的限位件,所述限位件具有限制所述第一本体部脱离所述第一连接部的限位状态和允许所述第一本体部脱离所述第一连接部的解锁状态,所述限位件至少部分位于所述机壳外;定义所述第一本体部脱离所述第一连接部的方向为第一方向;
    所述第一刀片设置在所述第二刀片的下侧;
    所述限位件阻止所述第一本体部沿所述第一方向脱离所述第一连接部,所述第一方向与所述第一直线相互垂直。
  14. 根据权利要求13所述的修枝机,其特征在于:
    所述修枝机还包括用于将所述限位件定位在所述锁定状态的螺钉,所述螺钉的数目小于等于2,所述螺钉位于机壳外。
  15. 根据权利要求13所述的修枝机,其特征在于:
    所述修枝机还包括用于将所述限位件定位在所述锁定状态的螺钉,所述螺钉的数目为1。
  16. 根据权利要求13所述的修枝机,其特征在于:
    所述修枝机还包括:
    第一类螺钉,沿垂直于所述第一直线的第三直线方向穿过所述限位件;
    第二类螺钉,沿垂直于所述第一直线的第四直线方向穿过第一刀片和第二刀片且不穿过所述限位件;
    所述第一本体部上形成有:供所述第二类螺钉穿过的安装孔,所述安装孔包括允许所述第二类螺钉沿平行于所述第一直线的方向滑动且阻止所述第二类螺钉穿过的滑动部和允许所述第一本体部沿垂直于所述第一直线的方向脱离第 二类螺钉的通孔部。
  17. 根据权利要求16所述的修枝机,其特征在于:
    所述滑动部在宽度方向上的最大尺寸小于通孔部在宽度方向上的最大尺寸。
  18. 根据权利要求17所述的修枝机,其特征在于:
    所述安装孔还形成有设置在所述滑动部和所述通孔部的连接处的引导部;在安装所述第一本体部时,所述引导部引导多个所述第二类螺钉依次与其相对应的安装孔啮合;在拆卸所述第一本体部时,所述引导部引导多个所述第二类螺钉依次与其相对应的安装孔脱离啮合。
  19. 根据权利要求1至18任意一项所述的修枝机,其特征在于:
    所述第一本体部和所述第一连接部的连接处位于所述机壳外;所述第二本体部和所述第二连接部的连接处位于所述机壳外。
  20. 根据权利要求1所述的修枝机,其特征在于:
    所述第一本体部和所述第一连接部构成在不打开机壳时也能被分离的可拆卸连接。
  21. 根据权利要求20所述的修枝机,其特征在于:
    所述修枝机还包括用于将所述第一本体部沿垂直于所述第一直线的方向限位件;或者,所述修枝机还包括用于将所述第一连接部沿垂直于所述第一直线的方向抵压至所述第一本体部的限位件。
  22. 根据权利要求21所述的修枝机,其特征在于:
    在沿垂直于所述第一直线的方向上,所述第一刀片设置在所述第二刀片的下侧;所述第一本体部与所述机壳之间的最小距离大于等于0且小于等于 300mm;所述第二本体部与所述机壳之间的最小距离大于等于0且小于等于300mm。
  23. 根据权利要求22所述的修枝机,其特征在于:
    所述第一本体部位于所述机壳之外,所述第二本体部位于所述机壳之外。
  24. 根据权利要求23所述的修枝机,其特征在于:
    所述第一连接部的一部分位于所述机壳之外、另一部分伸入到所述机壳内;所述第二连接部的一部分位于所述机壳之外、另外一部分伸入到所述机壳内。
  25. 根据权利要求24所述的修枝机,其特征在于:
    所述第一本体部能沿垂直于所述第一直线的方向脱离所述第一连接部;所述限位件为用于限制所述第一本体部沿垂直于所述第一直线的方向脱离所述第一连接部的压板;所述压板的一部分位于所述机壳外、另一部分位于所述机壳内。
  26. 根据权利要求25所述的修枝机,其特征在于:
    所述修枝机还包括用于对所述第一刀片和所述第二刀片构成支撑的支架;
    所述压板通过第一类螺钉固定至所述支架,所述第一类螺钉的数目小于三个;在所述第一类螺钉被拆卸时,所述压板能沿平行于所述第一直线的方向脱离所述机壳。
  27. 根据权利要求26所述的修枝机,其特征在于:
    所述修枝机还包括用于将所述第一本体部和第二本体部连接至所述支架的第二类螺钉;所述第一本体部沿所述第一直线方向相对所述第二类螺钉至少具有第一位置和第二位置,在所述第一本体部位于所述第一位置时,所述第二类螺钉阻止所述第一本体部脱离所述支架,在所述第一本体部位于所述第二位置 时,所述第二类螺钉允许所述第一本体部脱离所述支架。
  28. 根据权利要求27所述的修枝机,其特征在于:
    所述第二本体部沿所述第二直线方向相对所述第二类螺钉至少具有第三位置和第四位置,在所述第二本体部位于所述第三位置时,所述第二类螺钉阻止所述第二本体部脱离所述支架,在所述第二本体部位于所述第四位置时,所述第二类螺钉允许所述第二本体部脱离所述支架。
  29. 根据权利要求21所述的修枝机,其特征在于:
    所述限位件为:用于限制所述第一本体部沿垂直于所述第一直线的方向脱离所述第一连接部的压板;所述压板通过第一类螺钉固定至所述刀片组件,所述第一类螺钉位于所述机壳外,在所述第一类螺钉被拆卸时,所述压板能被用户从所述机壳外在不打开所述机壳的情况下操作以脱离所述刀片组件。
  30. 根据权利要求21所述的修枝机,其特征在于:
    所述机壳包括可拆卸的连接在一起的主体部和维修盖,在所述维修盖被拆卸时,所述机壳内部的结构至少部分露出以供更换或维修;所述第一本体部和所述第一连接部构成在不拆卸所述维修盖的情况下也能被分离的可拆卸连接。
  31. 根据权利要求22所述的修枝机,其特征在于:
    所述第一本体部和所述第二本体部由第一材料制成,所述第一连接部和所述第二连接部由不同于所述第一材料的第二材料制成。
  32. 根据权利要求21所述的修枝机,其特征在于:
    所述修枝机还包括用于将所述第一本体部沿与所述第一直线倾斜相交的方向抵压至所述第一连接部的限位件;或者,所述修枝机还包括用于将所述第一连接部沿与所述第一直线倾斜相交的方向抵压至所述第一本体部的限位件。
PCT/CN2019/073396 2018-09-07 2019-01-28 修枝机 WO2020048085A1 (zh)

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US20210144929A1 (en) 2021-05-20
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CN110881330A (zh) 2020-03-17
CN110881328A (zh) 2020-03-17
EP3821697B1 (en) 2022-05-04
CN110881330B (zh) 2021-11-19
CN209994932U (zh) 2020-01-31
CN110881329B (zh) 2021-11-19
CN209994933U (zh) 2020-01-31
EP3821697A4 (en) 2021-08-25

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