CN109596419B

CN109596419B - Crop stem stalk cuts quick clamping device of experimental stem stalk that uses

Info

Publication number: CN109596419B
Application number: CN201910090796.7A
Authority: CN
Inventors: 李中秋; 毛灿; 罗海峰; 张贝贝; 吴明亮; 杨丽华; 罗凤莲
Original assignee: Hunan Agricultural University
Current assignee: Hunan Agricultural University
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2021-03-23
Anticipated expiration: 2039-01-30
Also published as: CN109596419A

Abstract

A stalk rapid clamping device for a crop stalk cutting test is characterized in that a clamping support is provided with at least two slide bars, and a top plate, a snap ring, a slide shaft sleeve and an energy storage spring are sequentially sleeved on the slide bars from top to bottom; a clamping opening is formed in the top plate, a plurality of fixed hinged supports (17) are arranged around the clamping opening, and each fixed hinged support is hinged to one end of a clamping rod (19) respectively; the clamping ring rings are fixedly arranged on the sliding rod, first through holes (22) penetrating through the clamping rods are formed in the clamping ring rings, a first clamping ring (20) is fixedly arranged on each clamping rod, a plurality of second clamping rings (21) are arranged on the clamping ring rings around the first through holes, and a reset spring (12) is arranged between the first clamping ring and the second clamping ring; the sliding shaft sleeve is sleeved on the sliding rod in a sliding mode, an energy storage spring is arranged between the sliding shaft sleeve and the clamping support, the pressing support plate (11) is arranged on the periphery of the sliding shaft sleeve, a second through hole (23) with a guide sliding surface (15) is formed in the middle of the sliding shaft sleeve, and the other end of each clamping rod is inserted into the second through hole.

Description

Crop stem stalk cuts quick clamping device of experimental stem stalk that uses

Technical Field

The invention relates to a crop cutting test device, in particular to a stem quick clamping device for a crop stem cutting test.

Background

When carrying out crops cutting experiment, often need carry out the centre gripping to different crops stalks fixed, nevertheless because the difference of the kind and the growth characteristic of crop, its stalk thickness is uneven. The existing clamping device is complex in structure and clamping mode, and the position is difficult to further adjust after clamping, so that the clamping process is long in time consumption, and the working efficiency of the whole test process is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a stalk rapid clamping device for a crop stalk cutting test, which has the advantages of simple structure, tight clamping and convenient operation, and aims to overcome the defects of the prior art.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a crop stem stalk cuts experimental stem stalk quick clamping device, includes the centre gripping support, wherein:

the clamping support is fixedly provided with at least two sliding rods, the top of each sliding rod is provided with a top plate, and the middle of each sliding rod is sequentially sleeved with a clamping ring, a sliding shaft sleeve and an energy storage spring from top to bottom;

the middle part of the top plate is provided with a clamping opening, a plurality of fixed hinged supports are arranged on the top plate around the clamping opening, and each fixed hinged support is hinged with one end of a clamping rod;

the clamping ring is fixedly arranged on the sliding rod, a first through hole is formed in the middle of the clamping ring, the clamping rods penetrate through the first through hole, a first clamping ring is fixedly arranged on each clamping rod, a plurality of second clamping rings are arranged on the clamping ring around the first through hole, the first clamping rings and the second clamping rings are arranged in pairs, and a reset spring is arranged between the first clamping rings and the second clamping rings;

the sliding shaft sleeve is sleeved on the sliding rod in a sliding mode, the energy storage spring is arranged between the sliding shaft sleeve and the clamping support, the pressing support plate is arranged on the periphery of the sliding shaft sleeve, the second through hole with the guide sliding surface is formed in the middle of the sliding shaft sleeve, and the other end of each clamping rod is inserted into the second through hole.

According to the operation working condition and the operation requirement of the cutting device of the cutting test bed, one end of the clamping rod is skillfully hinged with the fixed hinged support, the other end of the clamping rod is arranged in the second through hole of the sliding shaft sleeve, the clamping rod slides along the guide sliding surface in the sliding shaft sleeve under the action of the energy storage spring, the clamping effect is quickly achieved while a proper clamping force is provided, the positioning stability of the crop stem in the cutting operation process is ensured, and the operation efficiency is effectively improved. In addition, the reset spring is arranged between the clamping ring and the clamping rod, so that the clamping rod can automatically stretch and reset in a loose state, and the phenomenon that the clamping rod is tightly attached to the outer wall of the stalk due to overlarge clamping force in the process of clamping the crop stalk can be effectively relieved, so that the stalk is broken due to excessive deformation.

Furthermore, the top of the sliding rod is provided with a threaded column, and the top plate is sleeved on the threaded column and fixed through an adjusting nut. Like this, carry out roof altitude mixture control with regard to accessible adjusting nut, and then can select suitable height according to the stem stalk diameter of difference to minimum centre gripping diameter through changing the holding stick is in order to reach tight effect of clamp, and is convenient for come the stem stalk of centre gripping different footpaths through changing different holding sticks.

Furthermore, clamp spring grooves are formed in the clamping support and the sliding shaft sleeve respectively, and the energy storage spring is arranged in the clamp spring grooves, so that the energy storage spring is stably embedded in the sliding rod, and the stability and the reliability of acting force in the clamping process are improved.

Furthermore, the limiting devices are fixedly arranged on the sliding rods below the clamping ring rings and above the sliding shaft sleeve, so that the sliding shaft sleeve is prevented from sliding excessively, and the stability of the device structure is ensured.

Furthermore, encircle on the roof the centre gripping mouth equidistance sets up a plurality ofly fixed hinged support, the snap ring encircles first through-hole equidistance and sets up a plurality ofly the second snap ring for the clamping process, the crop stem stalk all directions atress is even, and then makes the clamping process more reliable and more stable.

Furthermore, the snap ring is fixedly connected with the sliding rod through a first limiting screw, and the stopper is fixedly connected with the sliding rod through a second limiting screw.

Further, the minimum diameter of the second through hole is equal to or larger than the maximum diameter of the stalk, so that the normal work of the clamping device is ensured.

Drawings

FIG. 1 is a front view of the stalk rapid-clamping device for the crop stalk cutting test of the present invention.

FIG. 2 is a partial sectional view of the stalk rapid-clamping device for the crop stalk cutting test of the present invention.

FIG. 3 is a partial cross-sectional view showing a non-clamping state of the stalk rapid-clamping device for the crop stalk cutting test of the present invention.

Figure 4 is an isometric view of a gripping member of the present invention.

In the figure: 1. the novel clamp comprises a top plate, 2 parts of an adjusting nut, 3 parts of a clamp ring, 4 parts of a first limiting screw, 5 parts of a second limiting screw, 6 parts of a limiter, 7 parts of a sliding rod, 8 parts of a sliding shaft sleeve, 9 parts of an energy storage spring, 10 parts of a clamping bracket, 11 parts of a pressing support plate, 12 parts of a return spring, 13 parts of a threaded column, 14 parts of a stem, 15 parts of a guiding sliding surface, 16 parts of a clamp spring groove, 17 parts of a fixed hinged support, 18 parts of a clamping opening, 19 parts of a clamping rod, 20 parts of a first clamp ring, 21 parts of a second clamp ring, 22 parts of a first through hole, 23 parts of a second through hole.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

For convenience of description, the description of the relative position of the components (e.g., up, down, left, right, etc.) is described with reference to the layout direction of the drawings, and does not limit the structure of the patent.

As shown in fig. 1-4, an embodiment of a stem rapid clamping device for a crop stem cutting test of the invention comprises a clamping support 10, a slide rod 7 is fixedly arranged on the clamping support 10, a threaded column 13 is arranged at the top of the slide rod 7, a top plate 1 is sleeved on the threaded column 13 and then fixed by an adjusting nut 2, a clamping ring 3, a stopper 6, a sliding shaft sleeve 8 and an energy storage spring 9 are sequentially sleeved at the middle part of the slide rod 7 from top to bottom, the clamping ring 3 is fixedly connected with the slide rod 7 through a first limit screw 4, the stopper 6 is fixedly connected with the slide rod 7 through a second limit screw 5, the sliding shaft sleeve 8 is slidably sleeved on the slide rod 7, and the energy storage spring 9 is arranged between the sliding shaft sleeve 8 and the clamping support 10. In order to ensure that the energy storage spring 9 is stably embedded on the sliding rod 7, the clamping support 10 and the sliding shaft sleeve 8 are respectively provided with a clamp spring groove 16.

The middle part of the top plate 1 is provided with a clamping opening 18, the lower surface of the top plate 1 is provided with a plurality of fixed hinged supports 17 surrounding the clamping opening 18 at equal intervals, and each fixed hinged support 17 is hinged with a clamping rod 19.

The middle part of the clamp ring 3 is provided with a first through hole 22, the clamping rods 19 penetrate through the first through hole 22, a first clamp ring 20 is fixedly arranged on each clamping rod 19, the lower surface of the clamp ring 3 surrounds the first through hole 22 and is equidistantly provided with a plurality of second clamp rings 21, and a reset spring 12 is arranged between the first and

second clamp rings

20 and 21.

The outer periphery of the sliding shaft sleeve 8 is provided with a pressing support plate 11, the middle part of the sliding shaft sleeve 8 is provided with a second through hole 23, each clamping rod 19 is inserted into the second through hole 23, and the hole wall of the second through hole 23 is provided with a guide sliding surface 15.

When the clamping device works, the sliding shaft sleeve 8 moves upwards under the action of the energy storage spring 9 sleeved on the sliding rod 7, one end of a clamping rod 19 which is evenly arranged around the clamping opening 18 is hinged with the fixed hinged support 17, the other end of the clamping rod is positioned in the second through hole 23 of the sliding shaft sleeve 8, so that the crop stalks 14 are stressed evenly in all directions in the clamping process, meanwhile, the clamping rod 19 slides along the guide sliding surface 15 in the second through hole 23 of the sliding shaft sleeve 8 and moves and gathers towards the center of the second through hole 23 of the sliding shaft sleeve 8 under the action of the energy storage spring 9, and the working stroke of the sliding shaft sleeve 8 is limited above the sliding rod 7 through the limiter 6. At which time the crop stem is inserted through the holding port 18. From this through 8 cooperation clamping rods 19 combined action of slip axle sleeve realize the quick centre gripping of stem stalk, be equipped with reset spring 12 on the snap ring circle 3, reset spring 12 is connected through first snap ring 20 and the main part of clamping rods 19, makes clamping rods 19 can automatic flexible reset when lax state, can effectively alleviate and hug closely the stem stalk outer wall problem because of the clamping-force is too big at 14 in-process clamping rods of centre gripping crop stem stalk. The threaded column 13 is arranged above the sliding rod 7, the height of the top plate 1 is adjusted through the double adjusting nuts 2, and the proper height is selected according to different diameters of the stalks 14, so that the clamping effect is achieved by changing the minimum clamping diameter of the clamping rod 19.

In the clamping state, the supporting plate 11 is pressed downwards to enable the clamping device to be in the non-clamping state, the clamping rod 19 is located in the second through hole 23 of the sliding shaft sleeve 8 at the moment and is not under the action of thrust exerted by the sliding shaft sleeve 8, the lower end of the sliding shaft sleeve 8 is limited in working stroke through the clamping support 10, the energy storage spring 9 is in a compression state, the crop stalks after the cutting test are taken out at the moment, and then the whole working process of the whole clamping device is completed.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. A stalk rapid clamping device for a crop stalk cutting test comprises a clamping support (10) and is characterized in that at least two slide bars (7) are fixedly arranged on the clamping support, a top plate (1) is arranged at the top of each slide bar (7), and a clamping ring (3), a sliding shaft sleeve (8) and an energy storage spring (9) are sequentially sleeved in the middle of each slide bar (7) from top to bottom;

a clamping opening (18) is formed in the middle of the top plate (1), a plurality of fixed hinged supports (17) are arranged on the top plate (1) in a surrounding mode around the clamping opening (18), and each fixed hinged support (17) is hinged to one end of a clamping rod (19) respectively;

the clamp ring (3) is fixedly arranged on the sliding rod (7), a first through hole (22) is formed in the middle of the clamp ring (3), the clamping rods (19) penetrate through the first through hole (22), a first clamp ring (20) is fixedly arranged on each clamping rod (19), a plurality of second clamp rings (21) are arranged on the clamp ring (3) in a surrounding mode of the first through hole (22), the first clamp rings (20) and the second clamp rings (21) are arranged in pairs, and a reset spring (12) is arranged between the first clamp rings (20) and the second clamp rings (21);

the sliding shaft sleeve (8) is sleeved on the sliding rod (7) in a sliding mode, the energy storage spring (9) is arranged between the sliding shaft sleeve (8) and the clamping support (10), the pressing support plate (11) is arranged on the periphery of the sliding shaft sleeve (8), a second through hole (23) with a guide sliding surface (15) is formed in the middle of the sliding shaft sleeve, the minimum diameter of the second through hole is equal to or larger than the maximum diameter of the stalks, and the other end of each clamping rod (19) is inserted into the second through hole.

2. The stalk rapid clamping device for the crop stalk cutting test as claimed in claim 1, wherein a threaded column (13) is arranged on the top of the sliding rod (7), and the top plate (1) is sleeved on the threaded column and fixed by an adjusting nut (2).

3. The stalk rapid clamping device for the crop stalk cutting test as claimed in claim 1, wherein the clamping bracket (10) and the sliding shaft sleeve (8) are respectively provided with a snap spring groove (16), and the energy storage spring (9) is arranged in the snap spring groove (16).

4. The stalk rapid clamping device for the crop stalk cutting test as claimed in claim 1, wherein the slide rod (7) below the clamping ring (3) and above the sliding shaft sleeve (8) is fixedly provided with a stopper (6).

5. The stalk rapid clamping device for crop stalk cutting test as claimed in claim 1, wherein a plurality of said fixed hinged supports (17) are provided on said top plate (1) at equal intervals around said clamping opening (18), and a plurality of said second snap rings (21) are provided on said snap ring (3) at equal intervals around said first through hole (22).

6. The stalk rapid clamping device for the crop stalk cutting test as claimed in claim 4, wherein the clamping ring (3) is fixedly connected with the sliding rod (7) through a first limit screw (4), and the stopper (6) is fixedly connected with the sliding rod (7) through a second limit screw (5).