CN115349378A

CN115349378A - Experimental high-efficient fixing device of using of stem stalk class crop

Info

Publication number: CN115349378A
Application number: CN202211037444.3A
Authority: CN
Inventors: 田昆鹏; 纪爱敏
Original assignee: Changzhou Campus of Hohai University
Current assignee: Changzhou Campus of Hohai University
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-18

Abstract

The invention discloses a stalk fixing device, and more particularly relates to a high-efficiency fixing device for stalk crop tests, which has the technical key points that: the straw crop clamping device comprises a hollow cylinder body with two open ends, wherein a clamping assembly for clamping a straw crop is arranged on the cylinder body; the centre gripping subassembly includes three at least movable blocks of group, the movable block laminates each other and constitutes the polygon hole and carries out the centre gripping to the crop stem stalk fixed, still includes limiting plate and drive plate, limiting plate fixed connection barrel limits the movement track of movable block, the drive plate cooperates the limiting plate drive movable block to carry out relative slip and then change the polygon hole size that the movable block becomes. The invention has simple structure, can fix the stalk crops with different diameters and sizes and has high clamping efficiency.

Description

Experimental high-efficient fixing device that uses of stem stalk class crop

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of indoor test devices for stalk crops, in particular to an efficient fixing device for a stalk crop test.

[ background of the invention ]

The test bed is used for simulating the field operation working condition of the machine tool to carry out indoor tests, so that the restriction of regions, environments and other non-test factors can be eliminated, the internal association and influence rules between the test factors and the investigation indexes can be quantitatively investigated, and the method is an important means for optimizing the design system of the agricultural machinery. When carrying out a test on a crop stem cutting, ear picking or fruit picking test bench, the crop stem needs to be fixed to simulate the growth state of the crop stem in the field. But the diameter difference of the stalks is large because the varieties and the growth forms of the stalk crops are different. The diameter of the existing stalk fixing device is usually designed according to the average value of the diameter of a certain stalk of a specific crop, and when the diameter of the stalks is greatly different or a plurality of stalks need to be fixed at the same time, a new clamp needs to be manufactured in a trial mode again; and the existing clamp mostly adopts bolt pretension, and the adjustment is tedious, so that the time consumption in the clamping link is too long, and the operation efficiency of the whole test process is influenced.

[ summary of the invention ]

The invention aims to provide an efficient fixing device for a stalk crop test, which has the advantages that stalks with different diameters can be fixed, and the clamping is convenient.

The technical purpose of the invention is realized by the following technical scheme:

a high-efficiency fixing device for stalk crop tests comprises a barrel body which is hollow inside and has two open ends, wherein a clamping assembly for clamping stalk crops is arranged on the barrel body; the centre gripping subassembly includes three at least movable blocks of group, the movable block laminates each other and constitutes the polygon hole and carries out the centre gripping to the crop stem stalk fixed, still includes limiting plate and drive plate, limiting plate fixed connection barrel limits the movement track of movable block, the drive plate cooperates the limiting plate drive movable block to carry out relative slip and then change the polygon hole size that the movable block becomes.

Through adopting above-mentioned technical scheme, adopt above-mentioned multiunit movable block laminating linkage to constitute area adjustable polygon hole to carry out the centre gripping ingenious substitution current stalk fixing device single diameter centre gripping mode to the crop, improved device operation adaptation degree greatly, make the device can cooperate the stalk class crop of different diameters.

Further setting: the limiting plate is fixedly arranged at an opening at the upper end of the barrel body and provided with first through holes for stalk crops to pass through, the limiting plate is uniformly provided with limiting sliding grooves with the same number as the movable blocks along the circumferential direction, and the upper surface of each movable block is provided with an upper guide post for inserting into the corresponding limiting sliding groove; the initiative dish is equipped with the second through-hole that supplies stem stalk class crop to pass through along the barrel axial, the initiative dish is outer along laminating and constituting to rotate with the barrel inner wall and being connected, the initiative dish upper surface along self circumference evenly laid with the guide way that movable block quantity is the same, adjacent guide way head and the tail intercommunication constitutes a confined polygon cell body, the movable block lower surface is equipped with and is used for the slip dress card the lower guide block of guide way.

By adopting the technical scheme, the movable block is driven by the driving disc and the limiting plate to be clamped up and down, so that the upper surface and the lower surface of the movable block are restrained, the stability of clamping crops by the movable block is improved, and the device is more reliable.

Further setting: the barrel lateral wall is equipped with first draw-in groove and second draw-in groove, the initiative dish is equipped with outward along being used for inserting first draw-in groove and with first draw-in groove sliding connection's fixture block, the initiative dish is still equipped with outward along being used for inserting the second draw-in groove and with second draw-in groove sliding connection's spanner, the initiative dish passes through the cooperation of fixture block and first draw-in groove and the cooperation of spanner and second draw-in groove and then constitutes to rotate with the barrel and be connected.

Through adopting above-mentioned technical scheme, make the initiative dish and barrel constitute the integral type structure, make the device whole inseparabler, and through setting up the spanner, increased the drive moment of initiative dish, it is more laborsaving to use.

Further setting: still including the elasticity auto-lock structure that is used for driving the movable block and lasts to press from both sides tight stem stalk class crop, elasticity auto-lock structure is including setting firmly the lug at the barrel outer wall, still including the spring that is used for providing elasticity pretightning force, the spring both ends respectively solid with spanner, lug fixed connection.

Through adopting above-mentioned technical scheme for drive the initiative dish clockwise rotation when the spanner, drive movable block group slip and enlarge the polygon hole and supply the thing to get into the back, can drive the movable block with the help of the elasticity pretightning force of spring and reset and continuously press from both sides tight stem stalk class crop, replaced traditional bolt pretension mode, it is long when shortening the clamping greatly, improved the practicality and the work efficiency of device.

Further setting: still include with centre gripping subassembly synchronous motion and be used for drawing in the auxiliary stay structure who supports in to the crop upper end, auxiliary stay structure include with the first extension frame that movable block quantity is the same, every first extension frame and the last guide post fixed connection of the movable block that corresponds, be equipped with on the first extension frame and be used for carrying out spacing fixed first support piece to stalk class crop receiving movable block centre gripping fixed part top part.

By adopting the technical scheme, the upper guide post can be driven to further limit and support the upper part of the clamping and fixing position of the movable block group of the stalk crops by the first extending frame in a synchronous motion manner when the device is used, so that crease and fracture caused by the fact that the stress of the clamping and fixing position of the movable block is large due to the large top weight of part of the stalk crops can be prevented, and the crops can keep high form integrity in the whole test process.

Further setting: the whole pole form that is of folding of first support piece, first support piece are including constituting limit and work limit, and the constitution limit of adjacent first support piece, the mutual laminating of work limit constitute sliding connection, by constituting the limit to enclose inwards and constitute the polygon hole to carry on spacingly and support to the crop by centre gripping subassembly centre gripping fixed part top part.

Further setting: the initiative dish includes the outer disk body of middle part fretwork, and outer disk body middle part is equipped with interior disk body, and interior disk body lower surface is equipped with the connecting block that is used for the outer disk body of rigid coupling, the guide way has been constituteed jointly along the lateral wall with the interior disk body outer ring lateral wall in the outer disk body, supplementary bearing structure still includes and extends the frame with the second of guide block lower extreme rigid coupling down, the second extends the frame bottom and is equipped with and is used for carrying out spacing fixed second support piece to stem stalk class crop receiving movable block centre gripping fixed part top.

Through adopting above-mentioned technical scheme, can be extended by the second during the use and put up guide block simultaneous movement down, drive first support piece and carry out further centre gripping to the stalk class crop and fix by the below part of the fixed department of activity piece group centre gripping, more simulate the original planting environment of stalk class crop.

Further setting: the limiting structure comprises a supporting plate fixedly arranged on the inner wall of the barrel body, and a conical barrel with an upward opening and a downward top is arranged on the supporting plate.

By adopting the technical scheme, the bottom support can be carried out on the stalk crops with different diameters by utilizing the characteristics of different depths and different diameters of the conical cylinder.

Further setting: the side wall of the barrel body is provided with a through groove.

Through adopting above-mentioned technical scheme, make the inside part of barrel open, when being convenient for observe, also make the inside ventilation state that keeps of barrel, improve the experimental environment of crop.

In conclusion, the invention has the following beneficial effects:

1. the straw crops with different diameters can be flexibly and adaptively clamped and fixed, and the straw crop clamp can automatically reset and is convenient to clamp;

2. can fix the stalk crops at multiple points, has strong stability and little damage to the stalk crops.

[ description of the drawings ]

FIG. 1 is a schematic view of the operation of the high-efficiency fixing device for testing stalk crops;

FIG. 2 is an overall schematic view of the high-efficiency fixing device for testing stalk crops;

FIG. 3 is a schematic view of a first structure of the high-efficiency fixing device for testing stalk crops;

FIG. 4 is a second structural diagram of the high-efficiency fixing device for testing stalk crops;

FIG. 5 is a schematic structural view of a movable block;

FIG. 6 is a schematic view of the structure of the driving disk;

FIG. 7 is a schematic view of the construction of the lower subsidiary portion;

fig. 8 is a cross-sectional view of a spacing structure.

Reference numerals: 1. a barrel; 2. a first card slot; 3. a second card slot; 4. a clamping assembly; 41. a movable block; 42. a limiting plate; 43. a driving disk; 44. an elastic self-locking structure; 411. a first side edge; 412. a second side edge; 413. an upper guide post; 414. a lower guide block; 421. a first through hole; 422. a limiting chute; 431. an outer tray body; 432. an inner tray body; 433. connecting blocks; 434. a second through hole; 435. a guide groove; 436. a clamping block; 437. a wrench; 441. a bump; 442. a spring; 5. an auxiliary support structure; 51. an upper auxiliary part; 52. a lower auxiliary portion; 511. a first extension frame; 512. a first support member; 513. forming an edge; 514. a working edge; 515. a first platform; 516. a column; 517. a pulley; 521. a second extension frame; 522. a second support member; 523. a second platform; 6. a limiting structure; 61. a support plate; 62. a conical cylinder; 7. a through groove; 8. crop:

[ detailed description ] A

The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

It should be noted that the descriptions of "first", "second", etc. used in the embodiments of the present invention are only for descriptive purposes, and should not be interpreted as indicating or implying any limitation to the number of technical features, and therefore, the features defined as "first", "second", etc. in the embodiments of the present invention may indicate that at least one of the defined technical features is included.

Technical solutions between the embodiments of the present invention described in the present specification may be combined with each other, but it is necessary for those skilled in the art to realize the technical solutions.

As shown in fig. 1, a 8 high-efficient fixing device is used in indoor test of stem crop, including inside cavity and upper and lower open barrel 1, barrel 1 lateral wall is equipped with first draw-in groove 2 and second draw-in groove 3, but barrel 1 upper end is equipped with the centre gripping subassembly 4 of the fixed different diameter stem crop 8 of elasticity adaptation centre gripping, still include with centre gripping subassembly 4 simultaneous movement and cooperate centre gripping subassembly 4 to carry out the supplementary bearing structure 5 that draws in the support in stem crop 8 by both ends about the centre gripping, the inside lower extreme of barrel 1 still is equipped with and is used for carrying out limit support's limit structure 6 to stem crop 8 roots, barrel 1 lateral wall is evenly laid throughout and is led to groove 7.

As shown in fig. 2, the clamping assembly 4 includes at least three groups of movable blocks 41 that are adjacent to each other and form a polygonal hole to fixedly clamp the stem crops 8, a limiting plate 42 for restricting a movement track of the movable blocks 41, a driving disk 43 that is matched with the limiting plate 42 to change the size of the polygonal hole formed by the movable blocks 41, and an elastic self-locking structure 44 that is disposed on a sidewall of the cylinder 1 and is used for providing an elastic pre-tightening force to continuously clamp the crops 8 by the movable blocks 41.

During operation, the movable block 41 is driven to be attached and slide only by the driving disc 43, the size of a polygonal hole formed by the movable block 41 is changed, the straw crops 8 with different diameters can be matched and fixed, the clamping mode of the single diameter of the existing straw fixing device is ingeniously replaced, and the adaptation degree of the device is greatly improved. As shown in fig. 3 and 5, in this embodiment, the number of the movable blocks 41 is six, each movable block 41 includes a first side 411 and a second side 412, the first sides 411 and the second sides 412 of adjacent movable blocks 41 are attached to each other to form an included angle, so as to form a polygonal hole, the upper surface of each movable block 41 is provided with an upper guide post 413 used for clamping the limiting plate 42, and the lower surface of each movable block 41 is provided with a lower guide block 414 used for clamping the driving plate 43. The limiting plate 42 is fixedly arranged at an opening at the upper end of the barrel 1, the middle part of the limiting plate 42 is provided with a first through hole 421 for the stalk crop 8 to pass through, the surface of the limiting plate 42 is provided with limiting sliding grooves 422 with the same number as the movable blocks 41 along the circumferential direction, and the upper guide column 413 of each movable block 41 is respectively inserted into the corresponding limiting sliding grooves 422 and forms sliding connection with the same.

As shown in fig. 6, the driving disk 43 includes an outer disk body 431, an inner disk body 432 and a connecting block 433, the middle of the outer disk body 431 is hollowed out, the inner disk body 432 is suspended in the middle of the outer disk body 431 and is provided with a second through hole 434 for the stalk crop 8 to pass through, the outer disk body 431 and the inner disk body 432 are fixedly connected through the connecting block 433, a guide groove 435 which can be adapted to clamp the lower guide block 414 and is used for driving the movable block 41 to move is formed by enclosing the inner edge of the outer disk body 431 and the outer edge of the inner disk body 432 together, and a clamping block 436 slidably connected with the first clamping groove 2 and a wrench 437 slidably connected with the second clamping groove 3 are arranged on the outer side edge of the outer disk body 431.

Above-mentioned technical scheme makes initiative dish 43 and barrel 1 constitute the integral type structure, makes the device whole more inseparable, and through setting up spanner 437, has increased the drive moment of initiative dish 43, uses more laborsavingly, in addition, because initiative dish 43, limiting plate 42 adopt the mode drive movable block 41 of clamp closure from top to bottom for the movable block 41 is from top to bottom restricted, and then has effectively improved the stability and the reliability that movable block 41 held the crop 8.

Referring to fig. 3, elasticity auto-lock structure 44 includes lug 441 and spring 442, and lug 441 is fixed to be set up on barrel 1 outer wall surface, spring 442 one end fixed connection lug 441, the other end and the spanner 437 fixed connection of initiative dish 43, during the use, can drive movable block 41 with the help of the elasticity pretightning force of spring 442 and reset and continuously press from both sides tight stem stalk class crop 8, replaced traditional bolt pretension mode, it is long when shortening the clamping greatly, improved the practicality and the work efficiency of device.

When the fixing device works, when the fixing device does not fix crops 8, the wrench 437 is located at one end, close to the protruding block 441, of the second clamping groove 3 under the action of the pre-tightening force of the spring 442, at this time, the movable blocks 41 are gathered together, the intersection point of the first side edge 411 and the second side edge 412 of each movable block 41 is approximately overlapped, the overlapping degree of the first side edge 411 and the second side edge 412 of the adjacent movable blocks 41 reaches a peak value, and the area of a polygonal hole surrounded by the movable blocks 41 is minimum.

When stalk crops 8 need to be fixed, a user only needs to rotate the wrench 437 clockwise, the driving disc 43 is driven by the wrench 437, the driving disc 43 and the limiting plate 42 rotate relatively, the upper guide column 413 and the lower guide block 414 slide along the limiting sliding groove 422 and the guide groove 435 respectively, so that the movable blocks 41 are driven to deflect and move away from the central axis of the barrel body 1, the first side edge 411 of each movable block 41 slides relatively along the second side edge 412 of the adjacent movable block 41, the polygonal hole surrounded by the movable blocks 41 is enlarged until the crops 8 can pass through, after the stalk crops 8 sequentially pass through the first through hole 421, the polygonal hole and the second through hole 434 to enter the barrel body 1 and contact the limiting structure 6, the wrench 437 is loosened, and the movable blocks 41 return counterclockwise under the action of the pretightening force of the spring 442 until the crops 8 are just clamped, so that the crops 8 are fixed.

As shown in fig. 2 and 3, the auxiliary supporting structure 5 includes an upper auxiliary portion 51 and a lower auxiliary portion 52, the upper auxiliary portion 51 draws in and supports the upper portion of the fixed clamping position of the movable block 41 for the stalk crop 8 by following the upper guide column 413, and the lower auxiliary portion 52 draws in and supports the lower portion of the fixed clamping position of the movable block 41 for the stalk crop 8 by following the lower guide block 414.

Referring to fig. 3, the upper auxiliary portion 51 includes the same number of first extending frames 511 as the movable blocks 41, the lower end of each first extending frame 511 is fixedly connected to the upper end of the corresponding upper guiding column 413 exposed from the limiting sliding groove 422, the upper end of the first extending frame 511 far away from the limiting plate 42 is bent and points horizontally to the axis of the first through hole 421, and the bent end of the first extending frame 511 is provided with a first supporting element 512. During operation, the user pulls spanner 437 clockwise, first extension frame 511 is whole to follow last guide post 413 simultaneous movement, drive first support 512 together and keep away from first through-hole 421 centre of a circle department, make stem class crop 8 can pass through first through-hole 421 smoothly, treat that 8 ends of crop pass through second through-hole 434 and contact limit structure 6 after, the user loosens spanner 437, first extension frame 511 follows last guide post 413 synchronous reset, drive all first support 512 and carry out radial skew towards first through-hole 421 and gather together, it is spacing and support to receive the top part of the fixed centre gripping department of movable block 41 to carry out crop 8, thereby play and prevent that crop 8 from appearing empting because of its top gravity is too big, phenomenons such as rupture.

In this embodiment, two specific structures of the first supporting member 512 are provided, referring to fig. 3, the first structure of the first supporting member 512 is a folding rod shape, the working principle of the first supporting member is the same as that of the movable block 41, the first supporting member includes a forming edge 513 and a working edge 514, the forming edge 513 and the working edge 514 between the adjacent first supporting members are attached to each other, a hole similar to the clamping assembly 4 is formed by the forming edge 513, and the first extending frame 511 moves synchronously along the upper guide column 413, so that the rotating direction of the first supporting member 512 is changed to adjust the size of the hole, and further, the part above the clamped crop 8 is limited and supported.

Referring to fig. 3, a second structure of the first support 512 in the present embodiment: the second supporting member 522 comprises a first platform 515, a vertical column 516 and a pulley 517, the first platform 515 is fixedly connected with the upper end of the first extending frame 511, the vertical column 516 is arranged on the upper surface of the first platform 515, the pulley 517 is sleeved on the vertical column 516 and is in rotating connection with the vertical column 516, when the crop extruding device works, each group of pulleys 517 is driven by the first extending frame 511 to gather towards the upper end part of the fixed part of the crop 8 clamped by the movable block 41 until the pulleys contact and radially support the crop 8, and the pulley 517 can reduce the damage to the surface of the crop 8 through the rotation of the pulley 517 when the crop 8 is extruded.

Referring to fig. 7, the lower auxiliary portion 52 includes a plurality of second extending frames 521, the lower ends of the second extending frames 521 are fixedly connected to the lower end of the lower guide block 414, a second supporting member 522 is disposed on the upper surface of the second platform 523, in this embodiment, the second supporting member 522 is the same as the first supporting member 512 in second structure, and includes the second platform 523, a pillar 516 and a pulley 517, the second extending frame 521 is provided with the second platform 523 at the bottom end far away from the driving disk 43, the working principle of the lower auxiliary portion 52 is close to that of the upper auxiliary portion 51, and the lower auxiliary portion is intended to further clamp and fix the stalk crop 8 with a developed part of root system.

As shown in fig. 2 and 8, the limiting structure 6 comprises a supporting plate 61 and a conical cylinder 62, the supporting plate 61 is parallel to the cylinder 1 and is fixedly arranged at the lower end inside the cylinder 1, and the conical cylinder 62 is arranged in the middle of the supporting plate 61 with the opening facing upwards and the top facing downwards. During operation, the stem crops 8 of different diameters are bottom-supported by the characteristics of different depth diameters of the conical cylinder 62, in addition, the conical cylinder 62 can simulate soil to gather the roots of the stem crops 8, and the auxiliary part 52 can play a role in simulating the natural growth state of the stem crops 8 under the matching.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stem stalk class crop is experimental with high-efficient fixing device, includes inside cavity and open barrel (1) in both ends, its characterized in that: the barrel body (1) is provided with a clamping component (4) for clamping the stalk crops (8); centre gripping subassembly (4) are including at least three groups movable block (41), movable block (41) laminate each other and constitute polygon hole and carry out the centre gripping fixedly to crop (8) stem stalk, still include limiting plate (42) and drive dish (43), spacing dish fixed connection barrel (1) and restrict the movement track of movable block (41), drive dish (43) cooperation limiting plate (42) drive movable block (41) carry out relative slip and then change the polygon hole size that movable block (41) are constituteed.

2. The high-efficiency fixing device for the stalk crop test as claimed in claim 1, wherein: the limiting plate (42) is fixedly arranged at an opening at the upper end of the barrel body (1), the limiting plate (42) is provided with a first through hole (421) for the stalk crops (8) to pass through, the limiting plate (42) is uniformly provided with limiting sliding grooves (422) with the same number as the movable blocks (41) along the circumferential direction, and the upper surface of each movable block (41) is provided with an upper guide column (413) for inserting into the corresponding limiting sliding groove (422); drive dish (43) are equipped with second through-hole (434) that supply stem stalk class crop (8) to pass through along barrel (1) axial, drive dish (43) outer edge just constitute the rotation with barrel (1) inner wall laminating and be connected, drive dish (43) upper surface along self circumference evenly laid with the guide way (435) that movable block (41) quantity is the same, adjacent guide way (435) end to end intercommunication constitutes a confined polygon cell body, movable block (41) lower surface is equipped with and is used for the slip dress card guide way (435) lower guide block (414).

3. The high-efficiency fixing device for the stalk crop test as claimed in claim 2, wherein: barrel (1) lateral wall is equipped with first draw-in groove (2) and second draw-in groove (3), drive disc (43) are outer along being equipped with and being used for inserting first draw-in groove (2) and with first draw-in groove (2) sliding connection's fixture block (436), drive disc (43) are outer along still being equipped with and being used for inserting second draw-in groove (3) and with second draw-in groove (3) sliding connection's spanner (437), drive disc (43) pass through the cooperation of fixture block (436) with first draw-in groove (2) and spanner (437) and the cooperation of second draw-in groove (3) and then constitute to rotate with barrel (1) and be connected.

4. The experimental high-efficient fixing device of using of stem stalk class crop of claim 3 characterized in that: still including being used for driving movable block (41) and continuously pressing from both sides elasticity auto-lock structure (44) of tight stem stalk class crop (8), elasticity auto-lock structure (44) are including setting firmly lug (441) at barrel (1) outer wall, still include spring (442) that is used for providing elasticity pretightning force, spring (442) both ends are fixed respectively with spanner (437), lug (441) fixed connection.

5. The efficient fixing device for the stalk crop test as claimed in claim 4, wherein: still include with centre gripping subassembly (4) simultaneous movement and be used for drawing in auxiliary support structure (5) of support in to crop (8) upper end, auxiliary support structure (5) include with the same first frame (511) that extends of movable block (41) quantity, every first frame (511) and the last guide post (413) fixed connection of the movable block (41) that corresponds, be equipped with on first frame (511) that extends and be used for carrying out spacing fixed first support piece (512) to stalk class crop (8) by movable block (41) centre gripping fixed department top part.

6. The efficient fixing device for the stalk crop test as claimed in claim 5, wherein: the whole first supporting part (512) is in a folding rod shape, the first supporting part (512) comprises a forming edge (513) and a working edge (514), the forming edge (513) and the working edge (514) of the adjacent first supporting part (512) are mutually attached to form sliding connection, and a polygonal hole is formed by inward surrounding of the forming edge (513) to limit and support the upper part of the clamping and fixing part of the crop (8) clamped by the clamping component (4).

7. The efficient fixing device for the stalk crop test as claimed in claim 5, wherein: drive dish (43) are equipped with interior disk body (432) including outer disk body (431) of middle part fretwork, outer disk body (431) middle part, and interior disk body (432) lower surface is equipped with connecting block (433) that are used for the outer disk body (431) of rigid coupling, guide way (435) have been constituteed jointly along the lateral wall with interior disk body (432) to outer disk body (431) inner ring lateral wall, supplementary bearing structure (5) still include with second extension frame (521) of guide block (414) lower extreme rigid coupling down, second extension frame (521) bottom is equipped with and is used for carrying out spacing fixed second support piece (522) to stalk class crop (8) by movable block (41) centre gripping fixed department top part.

8. The high-efficiency fixing device for the stalk crop test as claimed in claim 1, wherein: still including being used for carrying out spacing limit structure (6) of contracting to stem stalk class crop (8) root, limit structure (6) are including setting firmly backup pad (61) at barrel (1) inner wall, be equipped with on backup pad (61) opening up, top down awl section of thick bamboo (62).

9. The high-efficiency fixing device for the stalk crop test as claimed in claim 1, wherein: the side wall of the barrel body (1) is provided with a through groove (7).