CN109699321B - Test bed for cutting straws - Google Patents
Test bed for cutting straws Download PDFInfo
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- CN109699321B CN109699321B CN201910190742.8A CN201910190742A CN109699321B CN 109699321 B CN109699321 B CN 109699321B CN 201910190742 A CN201910190742 A CN 201910190742A CN 109699321 B CN109699321 B CN 109699321B
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Abstract
The invention relates to the technical field of agricultural machinery product test devices, in particular to a straw cutting test bed. The straw cutting test bed comprises a machine frame, a rocker arm assembly and a tool rest assembly; the rocker arm assembly is rotatably connected to the upper part of the rack, and a stalk clamping assembly is arranged at one end of the rocker arm assembly, which is far away from the rack; the straw clamping assembly is used for clamping straws; the tool rest assembly is slidably connected to the bottom of the rack, and the cutting edge of the tool rest assembly faces upwards; when the rocker arm assembly rotates around the rack, the cutting edge of the cutter rest assembly can cut the straws clamped by the straw clamping assembly. The invention aims to provide a straw cutting test bed so as to research the technical problems of high energy consumption, quick abrasion and easy blockage of a straw picking trailer in the prior art when straws are cut up and fed into a collection box.
Description
Technical Field
The invention relates to the technical field of agricultural machinery product test devices, in particular to a straw cutting test bed.
Background
The straw picking trailer is a novel agricultural device in China, and the research on the straw picking trailer is still in a starting stage. The straw can be chopped up in the process of forcibly feeding the straws into the collecting box after the straw is picked up, but the energy consumption is high, the abrasion is fast, and the blockage is easy to occur in the processes of chopping and feeding the straws into the collecting box.
In order to reduce the energy consumption of trailer is picked up to the straw when straw is minced, collection case is fed in the research for the convenience to and how to reduce the jam of this process in the research, this application provides a cutting straw test bench.
Disclosure of Invention
The invention aims to provide a straw cutting test bed so as to research the technical problems of high energy consumption, quick abrasion and easy blockage of a straw picking trailer in the prior art when straws are cut up and fed into a collection box.
In order to achieve the above object, the present invention provides the following technical solutions;
based on the aim, the straw cutting test bed provided by the invention comprises a rack, a rocker arm assembly and a tool rest assembly;
the rocker arm assembly is rotatably connected to the upper part of the rack, and a stalk clamping assembly is arranged at one end of the rocker arm assembly, which is far away from the rack; the straw clamping assembly is used for clamping straws;
the tool rest assembly is slidably connected to the bottom of the rack, and the cutting edge of the tool rest assembly faces upwards;
when the rocker arm assembly rotates around the rack, the cutting edge of the cutter rest assembly can cut the straws clamped by the straw clamping assembly.
In any of the above technical solutions, optionally, the tool rest assembly includes a sliding tool holder, a cutting tool, and a cutting tool abutment member;
the sliding tool apron can be connected to the bottom of the rack in a sliding manner;
one end of the cutter is pivoted to one end of the sliding cutter seat, and one end of the cutter abutting piece is pivoted to the other end of the sliding cutter seat; the other end of the cutter can abut against the cutter abutting piece.
In any of the above technical solutions, optionally, the cutter includes a cutter element and a cutter fixing plate;
the cutter fixing plate clamps and fixes the cutter piece; the cutting edge of the cutter piece is arranged upwards;
one surface of the cutter abutting piece, which is close to the cutter fixing plate, is provided with a plurality of abutting grooves; the abutting grooves are sequentially arranged along the length direction of the cutter abutting piece;
one end of the cutter fixing plate is pivoted with the sliding cutter holder, and the other end of the cutter fixing plate can be abutted to the abutting groove of the cutter abutting piece.
In any of the above technical solutions, optionally, the cutting edge of the cutter element is arc-shaped, and the arc is bent toward the bottom of the rack;
and/or the cutter abutting piece is a spur rack.
In any of the above solutions, optionally, the tool post assembly includes a tool post fixing plate; the tool rest fixing plate is fixedly connected with the bottom of the rack;
the tool rest fixing plate is fixedly provided with a plurality of clamping parts; a plurality of the screens piece forms the joint the screens recess of slip blade holder, the slip blade holder can be followed screens recess reciprocating motion.
In any of the above technical solutions, optionally, the rocker arm assembly includes a rocker arm body and a rocker arm rotating shaft; the rocker arm body is fixedly connected with the rocker arm rotating shaft;
the rocker arm rotating shaft is rotatably connected to the upper part of the rack;
the end, far away from the rocker rotating shaft, of the rocker body is provided with the straw clamping assembly;
and a rotating wheel is fixedly arranged on the rotating shaft of the rocker arm.
In any of the above technical solutions, optionally, the apparatus further includes a pull line, and the pull line is used for connecting the rotating wheel and the tension sensor.
In any of the above technical solutions, optionally, the rotating wheel is provided with a rotating wheel blind hole;
one end of the pull wire is fixed in the blind hole of the rotating wheel, and the other end of the pull wire is fixedly connected with the tension sensor;
when the rocker arm rotating shaft rotates around the rack, the rotating wheel rotates along with the rocker arm rotating shaft, so that the stay wire is wound on the periphery of the rotating wheel or released from the periphery of the rotating wheel.
In any of the above solutions, optionally, the rocker arm body includes two rocker arms;
the two rocker arms are symmetrically arranged at two ends of the rocker arm rotating shaft;
one end of the rocker arm rod, which is far away from the rocker arm rotating shaft, is fixedly connected with a rocker arm support plate; the stalk clamping component is fixedly connected with the rocker arm support plate.
In any of the above technical solutions, optionally, a reinforcing beam is fixedly connected between the rocker fulcrum plate and the rocker lever;
the rocker arm rotating shaft is connected with the rack through a bearing.
By adopting the technical scheme, the invention has the beneficial effects that:
the invention provides a straw cutting test bed which comprises a rack, a rocker arm assembly and a tool rest assembly; the straw clamping assembly is rotatably connected to the upper part of the rack through the rocker arm assembly, one end, far away from the rack, of the rocker arm assembly is provided with a straw clamping assembly used for clamping straws, and the cutter rest assembly is slidably connected to the bottom of the rack, so that when the rocker arm assembly rotates around the rack, the straw clamping assembly clamps the straws to rotate around the rack along with the rocker arm assembly, and the cutting edge of the cutter rest assembly can cut the straws clamped by the straw clamping assembly; so that study knife rest subassembly and press from both sides the influence law of relative position, part structure and motion parameter between the stalk subassembly to cutting straw performance, and then be convenient for study straw pick-up trailer energy consumption when straw is minced, collection case feeding is big, the wearing and tearing are fast, take place easily to block up the scheduling problem, energy consumption is big when solving straw and pick-up trailer and straw and minced, collection case feeding, the wearing and tearing are fast, take place easily to block up the scheduling problem and provide experimental data and experimental foundation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a first angle structure of a straw cutting test bed provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a second angle structure of the straw cutting test bed provided in the embodiment of the present invention;
FIG. 3 is a schematic structural view of a display rocker arm support plate of the straw cutting test stand shown in FIG. 2;
FIG. 4 is a schematic structural diagram of a test bed for cutting straws, which is arranged on a universal testing machine, according to an embodiment of the invention;
fig. 5 is a partially enlarged schematic view of the rotating wheel and the tension sensor according to the embodiment of the invention.
Icon: 100-a frame; 200-a rocker arm assembly; 210-a rocker arm body; 211-rocker arm fulcrum; 212-a reinforcement beam; 213-rocker arm lever; 220-rocker arm rotating shaft; 230-a wheel; 300-a tool holder assembly; 310-sliding knife holder; 320-a cutter knife; 321-a cutter element; 322-cutter fixing plate; 330-a cutter abutment; 340-tool holder fixing plate; 341-a retaining member; 400-clamping the stalk assembly; 500-a tension sensor; 600-universal testing machine.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1-5, the present embodiment provides a straw cutting test stand; FIG. 1 is a perspective view of a straw cutting test bed provided in this embodiment; FIG. 2 is a front view of the straw cutting test bed provided in the present embodiment; FIG. 3 is a schematic structural view of a display rocker arm support plate of the straw cutting test stand shown in FIG. 2; for clear understanding of the present implementation, fig. 4 is a schematic structural view of the straw cutting test bed provided in the present embodiment, which is disposed on a universal testing machine; fig. 5 is a partially enlarged schematic view of the rotating wheel and the tension sensor provided in this embodiment.
The straw cutting test bed provided by the embodiment is used for researching the influence rule of the relative position, the part structure and the motion parameter between the cutter rest assembly for cutting straws and the straw clamping assembly for clamping straws of the straw picking trailer on the performance of the cut straws; the straw picking trailer is particularly used for researching the influence rule of the relative position, the part structure and the motion parameter between the cutter rest component for cutting straws and the straw clamping component for clamping the straws on the performance of the cut straws when the straws are chopped and fed into the header.
Referring to fig. 1-5, the straw cutting test stand comprises a machine frame 100, a rocker arm assembly 200 and a knife rest assembly 300.
The rocker arm assembly 200 is rotatably connected to the upper part of the machine frame 100, and one end of the rocker arm assembly 200, which is far away from the machine frame 100, is provided with a clamping rod assembly 400; the straw clamping assembly 400 is used for clamping straw; optionally, a clamping bar assembly 400 is fixedly disposed at an end of the swing arm assembly 200 remote from the frame 100. For example, the pinch bar assembly 400 is welded to the rocker arm assembly 200; for another example, the pinch bar assembly 400 may be secured to the rocker arm assembly 200 by fasteners such as screws, rivets, etc. The straws described in this embodiment can be a general term of the residual stem and leaf (ear) parts of wheat, rice, corn, potatoes, rape, cotton, sugarcane and other crops after harvesting seeds.
The carriage assembly 300 is slidably attached to the bottom of the housing 100 to enable the position of the carriage assembly 300 relative to the housing 100 to be changed.
The blade of carriage assembly 300 faces upward; so that the blade can cut the straw clamped by the straw clamping assembly 400.
When the rocker arm assembly 200 rotates around the machine frame 100, the straw clamping assembly 400 clamps the straw and rotates around the machine frame 100 along with the rocker arm assembly 200, and the cutting edge of the knife rest assembly 300 can cut the straw clamped by the straw clamping assembly 400.
The straw cutting test bed in the embodiment comprises a machine frame 100, a rocker arm assembly 200 and a tool rest assembly 300; the straw clamping assembly 400 is rotatably connected to the upper part of the rack 100 through the rocker arm assembly 200, one end, away from the rack 100, of the rocker arm assembly 200 is provided with a straw clamping assembly 400 for clamping straws, and the knife rest assembly 300 is slidably connected to the bottom of the rack 100, so that when the rocker arm assembly 200 rotates around the rack 100, the straw clamping assembly 400 clamps the straws and rotates around the rack 100 along with the rocker arm assembly 200, and then the knife edge of the knife rest assembly can cut the straws clamped by the straw clamping assembly 400; so that study knife rest subassembly 300 and press from both sides the influence law of relative position, part structure and motion parameter between the stalk subassembly 400 to cutting straw performance, and then be convenient for study straw pick-up trailer energy consumption when straw is minced, the collection case feeding is big, the wearing and tearing are fast, take place easily to block up the scheduling problem, energy consumption is big when solving straw and pick-up trailer and straw and chop, the collection case feeding, the wearing and tearing are fast, take place easily to block up the scheduling problem and provide experimental data and experimental foundation.
Referring to fig. 1-3, in an alternative to the present embodiment, the knife holder assembly 300 includes a slide knife holder 310, a cutter knife 320, and a cutter abutment 330.
The slide knife holder 310 is slidably connected to the bottom of the frame 100; by sliding the tool holder 310, the position of the carriage assembly 300 relative to the frame 100 can be changed.
One end of the cutter blade 320 is pivotally connected to one end of the slide blade holder 310, and the other end of the cutter blade 320 can abut against the cutter abutment member 330. One end of the cutter abutting member 330 is pivotally connected to the other end of the slide cutter holder 310. The cutter blade 320 is pivoted on the slide blade holder 310, so that the cutter blade 320 can rotate around the slide blade holder 310. The cutter abutting member 330 is pivotally connected to the slide cutter holder 310, so that the cutter abutting member 330 can rotate around the slide cutter holder 310. By pivoting the cutter blade 320 on the slide blade holder 310, and pivoting the cutter abutment 330 on the slide blade holder 310, the height of the cutter blade 320 abutting on the cutter abutment 330 is changed, so as to change the inclination angle of the cutter blade 320 relative to the slide blade holder 310, that is, the inclination angle of the cutter blade 320 relative to the rack 100.
Referring to fig. 1 to 3, in an alternative of the present embodiment, a cutter blade 320 includes a cutter member 321 and a cutter fixing plate 322; through the cutter element 321 and the cutter fixing plate 322, the cutter tool 320 can be conveniently produced and machined, and the machining difficulty of the cutter tool 320 is reduced.
Alternatively, the cutter fixing plate 322 holds the cutter member 321, and the cutting edge of the cutter member 321 is disposed upward. For example, the cutter fixing plate 322 has a cutter groove (not labeled), and a portion of the cutter member 321 is fixed in the cutter groove; the cutting edge of the cutter element 321 faces upward and is disposed outside the cutter groove so that the cutting edge of the cutter element 321 can cut straw.
Optionally, one surface of the cutter abutment member 330 adjacent to the cutter fixing plate 322 is provided with a plurality of abutment grooves (not labeled in the figure); the plurality of abutment grooves are sequentially arranged along the length direction of the cutter abutment 330; wherein, one end of the cutter abutting piece 330 is pivotally connected to the sliding cutter holder 310 along the length direction of the cutter abutting piece 330. The cutter abutment member 330 is provided with a plurality of abutment grooves, so that the cutter blade 320 abuts on the cutter abutment member 330 at different heights, and further, the inclination angle of the cutter blade 320 with respect to the slide blade holder 310, that is, the inclination angle of the cutter blade 320 with respect to the rack 100, is adjusted.
Optionally, one end of the cutter fixing plate 322 is pivotally connected to the slide holder 310, so that the cutter member 321 rotates around the slide holder 310 with the cutter fixing plate 322. The other end of the cutter fixing plate 322 can abut against the abutting groove of the cutter abutting piece 330, so that the cutter piece 321 is located at different heights of the cutter abutting piece 330 along with the cutter fixing plate 322, and further the inclination angle of the cutter piece 321 relative to the sliding cutter holder 310 is convenient to adjust, that is, the inclination angle of the blade relative to the rack 100 is convenient to adjust.
In an alternative of this embodiment, the cutting edge of the cutter member 321 has an arc shape, and the arc shape is curved toward the bottom of the frame 100; so that the blades cut the straw gripped by the straw gripping assembly 400.
In an alternative of this embodiment, the cutter abutment 330 is a spur rack. The cutter abutting part 330 adopts a spur rack to reduce the processing cost of the cutter abutting part 330. Optionally, each tooth of the spur rack forms a plurality of abutment grooves.
Referring to fig. 1-3, in an alternative embodiment, a toolholder assembly 300 includes a toolholder retaining plate 340; the tool rest fixing plate 340 is fixedly connected with the bottom of the frame 100; the blade carrier mounting plate 340 facilitates the secure attachment of the blade carrier assembly 300 to the frame 100.
Optionally, the tool holder fixing plate 340 is fixedly provided with a plurality of clamping members 341; the plurality of engaging members 341 form an engaging groove for engaging the slide holder 310, and the slide holder 310 can reciprocate along the engaging groove. Optionally, the blocking members 341 are disposed in pairs, and the blocking members 341 disposed in pairs are symmetrically disposed along the moving direction of the slide tool holder 310; optionally, a plurality of pairs of position-locking members 341 are fixedly disposed on the tool holder fixing plate 340 along the reciprocating direction of the slide tool holder 310.
Referring to fig. 1-5, in an alternative version of the present embodiment, a rocker arm assembly 200 includes a rocker arm body 210 and a rocker arm pivot 220; the rocker arm body 210 is fixedly connected with the rocker arm rotating shaft 220;
the rocker arm rotating shaft 220 is rotatably connected to the upper portion of the frame 100;
a clamping rod assembly 400 is arranged at one end of the rocker arm body 210 far away from the rocker arm rotating shaft 220; through the rocker arm body 210 and the rocker arm rotating shaft 220, the straw clamping assembly 400 can better rotate relative to the machine frame 100, so that the knife edge of the knife rest assembly can better cut the straw clamped by the straw clamping assembly 400.
Optionally, a rotating wheel 230 is fixedly arranged on the rocker arm rotating shaft 220; so that the rotating wheel 230 rotates with the rocker arm rotating shaft 220, that is, so that the rotating wheel 230 rotates with the rocker arm body 210.
Referring to fig. 4, the straw cutting test bed is arranged on a universal testing machine 600 and used for researching the influence rule of the relative position, the part structure and the motion parameters between a cutter frame assembly for cutting straws and a straw clamping assembly for clamping straws on the performance of the cut straws when a straw picking trailer cuts straws and a header is fed.
Optionally, a tension sensor 500 is coupled to the wheel 230 of the universal tester 600. Through the tension sensor 500, the universal tester 600 collects the tension of the rotating wheel 230 rotating along with the rocker rotating shaft 220, and further collects the tension of the clamping rod assembly 400 rotating along with the rocker body 210.
Referring to fig. 4 and 5, in an alternative embodiment, a pull wire is further included, and the pull wire is used to connect the rotating wheel 230 and the tension sensor 500.
Optionally, the pull wire is a steel wire, rope or other connector.
Optionally, the extension direction of the pull wire is perpendicular to the axial direction of the rocker arm rotating shaft 220, so as to improve the accuracy of the tension sensor 500 in monitoring the tension of the rotating wheel 230 rotating along with the rocker arm rotating shaft 220, and further improve the accuracy in monitoring the tension of the clamping bar assembly 400 rotating along with the rocker arm body 210.
Alternatively, the tension sensor 500 may be disposed above the wheel 230, or may be disposed below the wheel 230. As shown in fig. 4, the tension sensor 500 is disposed above the wheel 230.
Referring to FIG. 5, in an alternative to this embodiment, the runner 230 is provided with a runner blind bore; alternatively, the blind runner holes are disposed radially of the runner 230.
One end of the pull wire is fixed in the blind hole of the rotating wheel, and the other end of the pull wire is fixedly connected with the tension sensor 500;
when the swing arm rotating shaft 220 rotates around the frame 100, the rotating wheel 230 rotates along with the swing arm rotating shaft 220, so that the wire is wound around the outer circumference of the rotating wheel 230 or released from the outer circumference of the rotating wheel 230; that is, as the rotating wheel 230 rotates with the rocker shaft 220, the wire may be wound around the outer circumference of the rotating wheel 230, or the wire, which has been wound around the outer circumference of the rotating wheel 230, may be released. The pull wire is fixed in the blind hole of the rotating wheel 230, so that the tension arm of the rotating wheel 230 is unchanged when tension is measured, and the straw clamping assembly 400 is convenient to calculate through formula conversion to clamp straws and rotate corresponding numerical values around the rack 100 along with the rocker arm assembly 200.
Optionally, the outer circumference of the wheel 230 is provided with a groove to receive the wire so that the wire is better wound around the wheel 230.
Referring to fig. 1-3, in an alternative to the present embodiment, the rocker arm body 210 includes two rocker arms 213.
The two rocker arms 213 are symmetrically disposed at both ends of the rocker arm rotating shaft 220.
Optionally, one end of the rocker arm 213 away from the rocker arm rotating shaft 220 is fixedly connected with the rocker arm fulcrum 211; the stalk clamping assembly 400 is fixedly connected with the rocker arm support plate 211; through the rocker arm support plate 211, the straw clamping assembly 400 is fixed, and the straw clamping assembly 400 is clamped conveniently.
Optionally, a gap corresponding to the blade of the carriage assembly 300 is provided between the two rocker arms 211; so that the blade of the blade carrier assembly cuts the straw clamped by the straw clamping assembly 400 through the gap.
Optionally, a reinforcing beam 212 is fixedly connected between the rocker fulcrum 211 and the rocker lever 213; the reinforcing beam 212 enhances the connection strength between the rocker arm stay 211 and the rocker arm 213.
In an alternative of this embodiment, the rocker arm rotating shaft 220 is connected with the frame 100 through a bearing; through the bearing to reduce the frictional force between rocking arm pivot 220 and the frame 100, improve the tensile accuracy that tension sensor 500 monitors runner 230 and rotates along with rocking arm pivot 220 to a certain extent, and then improve the tensile accuracy of monitoring clamp stalk subassembly 400 and rotate along with rocking arm body 210.
In an alternative to this embodiment, the clamp stalk assembly 400 comprises a clamp. Through the clamp, so that the straw clamping assembly 400 clamps the straw. It will be understood by those skilled in the art that the clip of the present embodiment is only one specific embodiment of the clamping bar assembly, and is not limited to the clamping bar assembly of the present embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (9)
1. A test bed for cutting straws is characterized by comprising a machine frame, a rocker arm assembly and a tool rest assembly;
the rocker arm assembly is rotatably connected to the upper part of the rack, and a stalk clamping assembly is arranged at one end of the rocker arm assembly, which is far away from the rack; the straw clamping assembly is used for clamping straws;
the tool rest assembly is slidably connected to the bottom of the rack, and the cutting edge of the tool rest assembly faces upwards;
when the rocker arm assembly rotates around the rack, the cutting edge of the cutter rest assembly can cut the straws clamped by the straw clamping assembly;
the tool rest assembly comprises a sliding tool apron, a cutter and a cutter abutting piece;
the sliding tool apron can be connected to the bottom of the rack in a sliding manner;
one end of the cutter is pivoted to one end of the sliding cutter seat, and one end of the cutter abutting piece is pivoted to the other end of the sliding cutter seat; the other end of the cutter can abut against the cutter abutting piece.
2. The straw cutting test bed according to claim 1, wherein the cutter comprises a cutter member and a cutter fixing plate;
the cutter fixing plate clamps and fixes the cutter piece; the cutting edge of the cutter piece is arranged upwards;
one surface of the cutter abutting piece, which is close to the cutter fixing plate, is provided with a plurality of abutting grooves; the abutting grooves are sequentially arranged along the length direction of the cutter abutting piece;
one end of the cutter fixing plate is pivoted with the sliding cutter holder, and the other end of the cutter fixing plate can be abutted to the abutting groove of the cutter abutting piece.
3. The straw cutting test bed of claim 2, wherein the cutting edge of the cutter element is arc-shaped and the arc is curved towards the bottom of the frame;
and/or the cutter abutting piece is a spur rack.
4. The straw cutting test stand of claim 1, wherein the carriage assembly comprises a carriage retention plate; the tool rest fixing plate is fixedly connected with the bottom of the rack;
the tool rest fixing plate is fixedly provided with a plurality of clamping parts; a plurality of the screens piece forms the joint the screens recess of slip blade holder, the slip blade holder can be followed screens recess reciprocating motion.
5. The cut straw test stand of claim 1, wherein the rocker arm assembly comprises a rocker arm body and a rocker arm shaft; the rocker arm body is fixedly connected with the rocker arm rotating shaft;
the rocker arm rotating shaft is rotatably connected to the upper part of the rack;
the end, far away from the rocker rotating shaft, of the rocker body is provided with the straw clamping assembly;
and a rotating wheel is fixedly arranged on the rotating shaft of the rocker arm.
6. The test bench of claim 5, further comprising a pull wire for connecting the runner and the pull sensor.
7. The test bed for cutting straw according to claim 6, wherein the rotating wheel is provided with a rotating wheel blind hole;
one end of the pull wire is fixed in the blind hole of the rotating wheel, and the other end of the pull wire is fixedly connected with the tension sensor;
when the rocker arm rotating shaft rotates around the rack, the rotating wheel rotates along with the rocker arm rotating shaft, so that the stay wire is wound on the periphery of the rotating wheel or released from the periphery of the rotating wheel.
8. The cut straw test stand of claim 5, wherein the rocker arm body comprises two rocker arms;
the two rocker arms are symmetrically arranged at two ends of the rocker arm rotating shaft;
one end of the rocker arm rod, which is far away from the rocker arm rotating shaft, is fixedly connected with a rocker arm support plate; the stalk clamping component is fixedly connected with the rocker arm support plate.
9. The test bed for cutting straws of claim 8, wherein a reinforcing beam is fixedly connected between the rocker arm support plate and the rocker arm rod;
the rocker arm rotating shaft is connected with the rack through a bearing.
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| CN201910190742.8A CN109699321B (en) | 2019-03-13 | 2019-03-13 | Test bed for cutting straws |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910190742.8A CN109699321B (en) | 2019-03-13 | 2019-03-13 | Test bed for cutting straws |
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| CN109699321A CN109699321A (en) | 2019-05-03 |
| CN109699321B true CN109699321B (en) | 2020-11-20 |
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