CN108362595B - Ramie stem harvesting cutter abrasion test stand - Google Patents
Ramie stem harvesting cutter abrasion test stand Download PDFInfo
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- CN108362595B CN108362595B CN201810089037.4A CN201810089037A CN108362595B CN 108362595 B CN108362595 B CN 108362595B CN 201810089037 A CN201810089037 A CN 201810089037A CN 108362595 B CN108362595 B CN 108362595B
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- 240000008564 Boehmeria nivea Species 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000003306 harvesting Methods 0.000 title claims abstract description 18
- 238000005299 abrasion Methods 0.000 title abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 77
- 230000009471 action Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 230000001012 protector Effects 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000002195 synergetic effect Effects 0.000 claims description 2
- 230000002079 cooperative effect Effects 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention discloses a ramie stalk harvesting cutter abrasion test stand, which comprises a frame, a feeding device, a cutting device and an intermittent transmission device, wherein the feeding device, the cutting device and the intermittent transmission device are arranged on the frame, the feeding device and the cutting device are connected through the intermittent transmission device, feeding and cutting continuously circulate under the cooperative action of the intermittent transmission device, the intermittent transmission device drives the feeding device to downwards convey ramie stalks in a single circulation process, simultaneously drives the cutting device to a cutting position, and when the ramie stalks are conveyed to the cutting position, the cutting device reaches the cutting position to execute cutting action; after the cutting action is completed, the intermittent transmission device drives the cutting device to stay at the avoiding position. The ramie stalk harvesting cutter abrasion test bed has the advantages of accurate cutter abrasion test data, no need of manual feeding, labor saving, time saving and the like.
Description
Technical Field
The invention relates to a cutter abrasion test device, in particular to a cutter abrasion test stand for ramie stem harvesting.
Background
Ramie is a economic crop with long history and special features in China, and the yield of the Ramie in China accounts for about 90% of the total yield of the Ramie in the world. The ramie harvesting time is more than 60% of the whole production process, the harvesting operation efficiency is low, the labor force is insufficient, the planting cost is high, and the selling price is low, so that the ramie planting area is greatly reduced in recent years, and the industrial vanishing risk is high. Obviously, the problem of harvesting ramie becomes an important factor for restricting the utilization of ramie.
The ramie is mainly used as a textile raw material, so that the stalk fiber is required not to be damaged as much as possible when the ramie is harvested, the cutter blade is a key part of a harvester, the blade abrasion problem is serious when the ramie is harvested, and further the problems of poor cutting quality, low efficiency, low reliability and the like are caused. Thus, the amount of wear of the blade during cutting was studied to help improve cutting performance. At present, the ramie harvesting machinery is still under study, pilot scale and trial production stage, and the test study of sugarcane cutting force and the test study of the cutting table of the rape combine harvester by a learner. A test study of the ramie cleavage parameters was also carried out. While little research has been done on tests based on blade wear, the present invention is directed to providing a basic platform for wear tests.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects existing in the prior art and providing a ramie stem harvesting cutter abrasion test bed.
In order to solve the technical problems, the invention adopts the following technical scheme:
the ramie stalk harvesting cutter abrasion test stand comprises a frame, and further comprises a feeding device, a cutting device and an intermittent transmission device which are arranged on the frame, wherein the feeding device is connected with the cutting device through the intermittent transmission device, feeding and cutting are continuously circulated under the cooperative action of the intermittent transmission device, and in the single circulation process, the intermittent transmission device drives the feeding device to downwards convey ramie stalks, meanwhile drives the cutting device to a cutting position, and when the ramie stalks are conveyed to the cutting position, the cutting device reaches the cutting position to execute cutting action; after the cutting action is completed, the intermittent transmission device drives the cutting device to stay at the avoiding position.
As a further improvement of the above technical scheme:
the feeding device comprises a blanking assembly and a clamping feeding assembly, wherein the clamping feeding assembly is arranged below the blanking assembly and is in transmission connection with the intermittent transmission device.
The blanking assembly comprises a rotating disc, a rotating shaft, a fixed disc and a plurality of guide pipes, wherein a plurality of through holes are uniformly formed in the periphery of the rotating disc, one guide pipe is arranged in each through hole, the fixed disc is arranged below the guide pipe and fixedly connected to the frame, a blanking opening is formed in the fixed disc, and the blanking opening is in butt joint with the clamping feeding assembly.
The clamping feeding assembly comprises a driving roller, a driven roller, a driving roller shaft and a driven roller shaft, wherein the driving roller shaft and the driven roller shaft are arranged in parallel, the driving roller is arranged on the driving roller shaft, the driven roller is arranged on the driven roller shaft, gaps between the driving roller and the driven roller are aligned with a discharging opening of the fixed disc, and the driving roller shaft is in transmission connection through an intermittent transmission device.
The cutting device comprises a movable cutter, a cutter bar, a crank guide rod transmission assembly, a fixed cutter, a cutter protector and a movable frame, wherein the movable frame is arranged on the frame in a sliding manner and is fixedly connected with the intermittent transmission device, the crank guide rod transmission assembly and the cutter protector are arranged on the movable frame, the cutter bar is arranged on the movable frame in a sliding manner and is connected with the linear driving end of the crank guide rod transmission assembly, the movable cutter is detachably connected to the cutter bar, and the fixed cutter is detachably connected to the cutter protector.
The intermittent transmission device comprises a cutting transmission part and a blanking transmission part, wherein the cutting transmission part comprises a shaft, an incomplete gear, a driving plate, a rack and racks, the incomplete gear and the driving plate are arranged on the shaft, the rack is provided with an upper rack and a lower rack which can be meshed with the incomplete gear, one end of the rack is connected with a movable frame through a fastener, and the other end of the rack is movably connected with the rack through a linear bearing; the blanking transmission part comprises a biaxial, a grooved pulley, a driving sprocket and a driven sprocket, wherein the grooved pulley and the driving sprocket are arranged on the biaxial, the driven sprocket is arranged on a driving roll shaft, and the driving sprocket is in transmission connection with the driven sprocket through a chain; the driving plate is in transmission connection with the grooved pulley.
The incomplete gear is a gear with 1/4 circular arc gear teeth reserved, and the number of teeth of the rack is 1.5-2.5 times of the number of teeth of the incomplete gear.
The grooved pulley is provided with 4 notches which are uniformly distributed along the circumferential direction.
Compared with the prior art, the invention has the advantages that:
the invention enables feeding and cutting to continuously circulate under the synergistic effect of the intermittent transmission device, can avoid the trouble of waiting for cutting by manual feeding and save manpower and time, and the feeding and cutting of the invention are not mutually interfered, and reasonable travel arrangement can avoid the damage of a cutter caused by cutting during blanking and the damage of stalk fibers caused by movement of the stalks during cutting, thus avoiding interference factors and leading the abrasion test data of the cutter to tend to be most accurate.
Drawings
Fig. 1 is a front view of a ramie stalk harvesting cutter abrasion test stand provided by the invention.
Fig. 2 is a top view of the ramie stalk harvesting cutter wear test stand provided by the invention.
Fig. 3 is a schematic view of the front side three-dimensional structure of the ramie stalk harvesting cutter abrasion test stand provided by the invention.
Fig. 4 is a schematic view of the rear side three-dimensional structure of the ramie stalk harvesting cutter abrasion test stand provided by the invention.
Legend description: 1. a frame; 2. a feeding device; 21. a blanking assembly; 211. a rotating disc; 212. a rotating shaft; 213. a fixed plate; 2131. a feed opening; 214. a conduit; 22. clamping the feeding assembly; 221. a drive roll; 222. driven roller; 223. a driving roll shaft; 224. a driven roll shaft; 3. a cutting device; 31. a movable knife; 32. a cutter bar; 33. a crank guide transmission assembly; 34. a fixed cutter; 35. a blade protector; 36. a moving rack; 4. an intermittent transmission; 41. cutting the transmission part; 411. a shaft; 412. an incomplete gear; 413. a dial; 414. a rack; 415. a rack; 42. a blanking transmission part; 421. a two-axis; 422. a sheave; 4221. a notch; 423. a drive sprocket; 424. and a driven sprocket.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples.
Examples
As shown in fig. 1 and 2, the ramie stalk harvesting cutter wear test stand of the embodiment comprises a frame 1, and further comprises a feeding device 2, a cutting device 3 and an intermittent transmission device 4 which are arranged on the frame 1, wherein the feeding device 2 and the cutting device 3 are connected through the intermittent transmission device 4, feeding and cutting are continuously circulated under the cooperative action of the intermittent transmission device 4, the trouble of waiting for cutting by manual feeding is avoided, manpower and time are saved, the intermittent transmission device 4 drives the feeding device 2 to downwards convey ramie stalks in a single circulation process, meanwhile, the cutting device 3 is driven to a cutting position, and when the ramie stalks are conveyed to the cutting position, the cutting device 3 reaches the cutting position to execute cutting action; after the cutting action is finished, the intermittent transmission device 4 drives the cutting device 3 to stay at the avoiding position, reasonable travel arrangement avoids cutter damage caused by cutter striking during blanking and stalk fiber damage caused by stalk movement during cutting, avoids interference factors, and enables cutter abrasion test data to tend to be most accurate.
In this embodiment, as shown in fig. 1 and 2, the feeding device 2 includes a blanking assembly 21 and a clamping feeding assembly 22, the clamping feeding assembly 22 is disposed below the blanking assembly 21, and the clamping feeding assembly 22 is in transmission connection with the intermittent transmission device 4; the blanking assembly 21 comprises a rotating disc 211, a rotating shaft 212, a fixed disc 213 and a plurality of guide pipes 214 with the length of 100mm, wherein a plurality of through holes are uniformly formed in the periphery of the rotating disc 211, one guide pipe 214 is arranged in each through hole, the fixed disc 213 is arranged below the guide pipe 214 and fixedly connected to the frame 1, a blanking opening 2131 with the diameter of 22mm is formed in the fixed disc 213, the inner diameter of the blanking opening 2131 is wrapped by rubber materials, stalks are prevented from being damaged, and the blanking opening 2131 is in butt joint with the clamping and feeding assembly 22; the clamping feeding assembly 22 comprises a driving roller 221, a driven roller 222, a driving roller 223 and a driven roller 224, wherein the driving roller 223 and the driven roller 224 are arranged in parallel, the driven roller 224 is connected to the frame 1 through a bearing seat sliding spring, the driving roller 221 is arranged on the driving roller 223, the driven roller 222 is arranged on the driven roller 224, the gap between the driving roller 221 and the driven roller 222 is aligned with a blanking opening 2131 of the fixed disc 213 and keeps a vertical distance of 15cm with the blanking opening 2131, the driving roller 223 is in transmission connection through an intermittent transmission device 4, and when stems with different thicknesses enter the gap between the driving roller 221 and the driven roller 222 in sequence, the driven roller 224 adopts the bearing seat sliding spring to realize automatic return.
In this embodiment, as shown in fig. 3, the cutting device 3 includes a movable blade 31, a blade bar 32, a crank guide bar transmission assembly 33, a fixed blade 34, a blade protector 35, and a movable frame 36, wherein the movable frame 36 is slidably disposed on the frame 1 and is fixedly connected with the intermittent transmission device 4, the crank guide bar transmission assembly 33 and the blade protector 35 are both disposed on the movable frame 36, the blade bar 32 is slidably disposed on the movable frame 36 and is connected with the linear driving end of the crank guide bar transmission assembly 33, the movable blade 31 is detachably connected to the blade bar 32, and the fixed blade 34 is detachably connected to the blade protector 35.
In this embodiment, as shown in fig. 4, the intermittent transmission device 4 includes a cutting transmission portion 41 and a blanking transmission portion 42, the cutting transmission portion 41 includes a shaft 411, an incomplete gear 412, a driving plate 413, a rack 414 and a rack 415, the incomplete gear 412 and the driving plate 413 are mounted on the shaft 411, the rack 414 is provided with an upper rack and a lower rack 415 which can be engaged with the incomplete gear 412, one end of the rack 414 is connected with the movable frame 36 through a fastener, the other end of the rack 414 is movably connected with the frame 1 through a linear bearing, and when the shaft 411 rotates, the rack 414 drives the movable frame 36 to reciprocate linearly through the engagement transmission of the incomplete gear 412 and the rack 415; the blanking transmission part 42 comprises a two-shaft 421, a grooved pulley 422, a driving sprocket 423 and a driven sprocket 424, wherein the grooved pulley 422 and the driving sprocket 423 are arranged on the two-shaft 421, the driven sprocket 424 is arranged on the driving roll shaft 223, and the driving sprocket 423 is in transmission connection with the driven sprocket 424 through a chain; the driving plate 413 is in transmission connection with the grooved wheel 422, so that the first shaft 411 drives the second shaft 421 to rotate, and the cutting transmission part 41 is in transmission connection with the blanking transmission part 42.
In this embodiment, the incomplete gear 412 is a gear with 1/4 circular arc gear teeth reserved, the number of teeth of the rack 415 is twice that of the incomplete gear 412, and only 1/4 circular arc gear teeth are reserved to intermittently engage with the rack 415 when the incomplete gear 412 rotates one turn, so that the rack 415 has four periods of backing, staying, advancing and staying in one period, when the incomplete gear 412 is installed, the middle part of the rack 415 below is positioned, and the first tooth enters an engaged state, so that the rack 415 drives the rack 414 to enter the advancing period when the incomplete gear 412 starts to rotate.
In this embodiment, as shown in fig. 4, the sheave 422 is provided with 4 notches 4221 uniformly distributed along the circumferential direction, when the dial 413 rotates one turn, the sheave 422 is rotated by 90 °, when the rack 414 advances, the sheave 422 rotates, and the other sheaves 422 are locked.
In this embodiment, a ramie stalk with a length of 0.9-1.5 m and a diameter of 0.9-1.8 cm is selected for experiments, the ramie stalk is placed in each guide pipe 214, one ramie stalk enters a gap between a driving roller 221 and a driven roller 222 from a blanking port 2131, a starting device starts continuous feeding and cutting, in a single cycle, a shaft 411 drives an incomplete gear 412 and a driving plate 413 to rotate, the incomplete gear 412 drives a rack 414 to enable the whole cutting device 3 to go to a cutting position, meanwhile, the driving plate 413 drives a grooved pulley 422 to rotate 90 degrees, two shafts 421 drive a driving sprocket 423 to rotate 90 degrees, the driving sprocket 423 drives a driven sprocket 424 to drive the driving roller 221 to rotate and blanking about 10cm through chain transmission, then the grooved pulley 422 is locked, a cutting device 3 reaches a cutting position, and a crank guide rod transmission assembly 33 drives a movable knife 31 to make reciprocating linear motion to complete cutting; one shaft 411 drives the incomplete gear 412 to continue to rotate, and the incomplete gear 412 drives the rack 414 to enable the whole cutting device 3 to retreat to the avoiding position to stay, so that the next cycle is started.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which would be obvious to those skilled in the art without departing from the spirit of the invention are also considered to be within the scope of the invention.
Claims (3)
1. The utility model provides a ramie stem reaping cutter wear test bench, includes frame (1), its characterized in that: the automatic ramie cutting machine is characterized by further comprising a feeding device (2), a cutting device (3) and an intermittent transmission device (4) which are arranged on the frame (1), wherein the feeding device (2) is connected with the cutting device (3) through the intermittent transmission device (4), feeding and cutting continuously circulate under the synergistic effect of the intermittent transmission device (4), the intermittent transmission device (4) drives the feeding device (2) to downwards convey ramie stems in a single circulation process, meanwhile drives the cutting device (3) to a cutting position, and when the ramie stems are conveyed to the cutting position, the cutting device (3) reaches the cutting position to execute cutting action; after the cutting action is finished, the intermittent transmission device (4) drives the cutting device (3) to stay at the avoidance position, the feeding device (2) comprises a blanking component (21) and a clamping feeding component (22), the clamping feeding component (22) is arranged below the blanking component (21), the clamping feeding component (22) is in transmission connection with the intermittent transmission device (4), the blanking component (21) comprises a rotating disc (211), a rotating shaft (212), a fixed disc (213) and a plurality of guide pipes (214), the rotating disc (211) is uniformly provided with a plurality of through holes along the periphery, one guide pipe (214) is arranged in each through hole, the fixed disc (213) is arranged below the guide pipe (214) and fixedly connected to the frame (1), the fixed disc (213) is provided with a blanking port (2131), the blanking port (2131) is in butt joint with the clamping feeding component (22), the clamping feeding component (22) comprises a driving roll (221), a driving roll shaft (223) and a driven roll shaft (224), the driving roll shaft (223) and the driven roll shaft (224) are arranged on the driving roll shaft (223) in parallel with the driven roll shaft (224), and the driving roller (221) and the driven roller (222) are in clearance alignment with the feed opening (2131) of the fixed disc (213), the driving roller shaft (223) is in transmission connection with an intermittent transmission device (4), the cutting device (3) comprises a movable cutter (31), a cutter bar (32), a crank guide rod transmission assembly (33), a fixed cutter (34), a blade protector (35) and a movable frame (36), the movable frame (36) is slidably arranged on the frame (1) and is in fastening connection with the intermittent transmission device (4), the crank guide rod transmission assembly (33) and the blade protector (35) are both arranged on the movable frame (36), the cutter bar (32) is slidably arranged on the movable frame (36) and is connected with the linear driving end of the crank guide rod transmission assembly (33), the movable cutter (31) is detachably connected with the cutter bar (32), the fixed cutter (34) is detachably connected with the blade protector (35), the intermittent transmission device (4) comprises a cutting transmission part (41) and a feed transmission part (42), the cutting transmission part (41) comprises a part (412), a driving part (411) and a driving part (411) are not completely arranged on the driving part (412) and a driving part (411), an upper rack (415) and a lower rack (415) which can be meshed with the incomplete gear (412) are arranged on the rack (414), one end of the rack (414) is connected with the movable frame (36) through a fastener, and the other end of the rack is movably connected with the rack (1) through a linear bearing; the blanking transmission part (42) comprises a two-shaft (421), a grooved pulley (422), a driving sprocket (423) and a driven sprocket (424), wherein the grooved pulley (422) and the driving sprocket (423) are arranged on the two-shaft (421), the driven sprocket (424) is arranged on the driving roll shaft (223), and the driving sprocket (423) is in transmission connection with the driven sprocket (424) through a chain; the driving plate (413) is in transmission connection with the grooved wheel (422).
2. The ramie stalk harvesting cutter wear test stand according to claim 1, wherein: the incomplete gear (412) is a gear with 1/4 circular arc gear teeth reserved, and the number of teeth of the rack (415) is 1.5-2.5 times that of the incomplete gear (412).
3. The ramie stalk harvesting cutter wear test stand according to claim 2, wherein: the grooved wheel (422) is provided with 4 notches (4221) which are uniformly distributed along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089037.4A CN108362595B (en) | 2018-01-30 | 2018-01-30 | Ramie stem harvesting cutter abrasion test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089037.4A CN108362595B (en) | 2018-01-30 | 2018-01-30 | Ramie stem harvesting cutter abrasion test stand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108362595A CN108362595A (en) | 2018-08-03 |
| CN108362595B true CN108362595B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810089037.4A Active CN108362595B (en) | 2018-01-30 | 2018-01-30 | Ramie stem harvesting cutter abrasion test stand |
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| CN (1) | CN108362595B (en) |
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