CN107094380B

CN107094380B - Detachable anti-blocking spiral reamer device special for white celery hilling

Info

Publication number: CN107094380B
Application number: CN201710280962.0A
Authority: CN
Inventors: 袁浩; 郭勇; 易卫明; 李银芳; 缪福福; 董立立
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2017-04-26
Filing date: 2017-04-26
Publication date: 2021-04-06
Anticipated expiration: 2037-04-26
Also published as: CN107094380A

Abstract

The invention discloses a detachable anti-blocking spiral reamer device special for white celery hilling, which comprises a transmission shaft, a spiral reamer and a housing; transmission shaft and helical reamer slope set up, helical reamer includes the section of boring soil that sets gradually backward in the past, the section of fetching earth and extrusion section, it is the toper to bore section of earth helical blade, it diminishes from backward forward gradually to bore section of earth helical blade diameter, it is the constant pitch variable diameter structure to fetch section helical blade, it is less than extrusion section helical blade pitch S2 to fetch section helical blade pitch S1, it reduces gradually backward in the past to fetch section helical blade diameter, it equals extrusion section helical blade diameter D2 to fetch section helical blade minimum diameter D1, extrusion section helical blade is constant pitch constant diameter structure. The transmission shaft and the reamer shaft adopt a split structure, the spiral reamer is very convenient to disassemble and assemble, and meanwhile, the spiral reamer adopts a segmented design, so that large stones can be prevented from entering the reamer through the soil taking section, small stones are smoothly extruded at the extrusion section, and the reamer cannot be blocked.

Description

Detachable anti-blocking spiral reamer device special for white celery hilling

Technical Field

The invention relates to crop field management equipment, in particular to a special soil sampling device for hilling of white celery, and belongs to the technical field of agricultural machinery.

Background

White celery is a vegetable cultivated by a special method, and in the growing process of the white celery, in order to reduce photosynthesis of stems of the white celery and whiten the stems of the white celery, soil with moderate humidity needs to be cultivated on two sides of each row of the white celery to form hilling with a certain height. At present, after a special white celery hilling machine drives a spiral reamer to rotate through a spiral soil-taking driving mechanism to take soil, the soil is pushed and extruded into a hilling forming die to be extruded and formed, and therefore hilling soil is formed and placed on two sides of each row of white celery. Above-mentioned special machine for white celery hilling operating efficiency is high, low in labor strength, nevertheless because its spiral reamer arbor is overall structure with the transmission shaft, its power input end directly links to each other with spiral borrowing actuating mechanism, and this just makes spiral reamer whole longer, and the dismouting is extremely inconvenient, and helical blade wearing and tearing are big when hilling in addition, also need often to change, above-mentioned structure greatly reduced spiral reamer maintenance change efficiency. In addition, the spiral blades on the spiral reamer are of a structure with equal pitch and equal diameter, so that sundries such as stones easily enter the spiral blades to cause blockage in the soil heaping operation process, and the soil heaping efficiency is influenced.

Disclosure of Invention

The invention aims to provide a detachable anti-blocking spiral reamer device special for white celery hilling, which is simple in structure, convenient to disassemble and assemble and not easy to block.

The invention is realized by the following technical scheme:

a detachable anti-blocking spiral reamer device special for white celery hilling comprises a transmission shaft, a spiral reamer and a housing with an open front side; the transmission shaft and the spiral reamer are obliquely arranged, the rear end of the transmission shaft is fixedly connected with the belt pulley through a flat key, two ends of the transmission shaft are supported on the rack through two bearings, the spiral reamer comprises a reamer shaft and spiral blades axially fixed on the reamer shaft, the front end of the transmission shaft is in threaded connection with the rear end of the reamer shaft, and a drill bit is arranged at the front end of the reamer shaft; the spiral reamer comprises a soil drilling section, a soil taking section and an extrusion section which are sequentially arranged from front to back, the diameter of a spiral blade of the soil drilling section is gradually reduced from back to front, the whole body is conical, the spiral blade of the soil taking section is of a constant-pitch diameter-variable structure, the pitch S1 of the spiral blade of the soil taking section is smaller than the pitch S2 of the spiral blade of the extrusion section, the most front section of the spiral blade of the soil taking section is connected with the most rear section of the spiral blade of the soil drilling section, the diameters of the two sections are equal, then the diameter of the spiral blade of the soil taking section is gradually reduced from front to back, the minimum diameter D1 of the spiral blade of the soil taking section is equal to the diameter D2; the cover shell covers the spiral reamer and is fixedly connected with the rack.

The object of the invention is further achieved by the following technical measures.

The spiral reamer device special for detachable anti-blocking celery hilling comprises a drill soil section length L1, a soil sampling section length L2 and an extrusion section length L3 in a ratio of L1: l2: l3 is 1: 4: 5.

according to the spiral reamer device special for detachable anti-blocking celery hilling, the rear end of the housing is cylindrical, and the front end of the housing is horn-shaped.

According to the detachable anti-blocking spiral reamer device special for white celery hilling, the gap a between the inner wall of the housing and the spiral blade is 1-2 mm.

According to the spiral reamer device special for the detachable anti-blocking celery hilling, a plurality of high-pressure water spraying inclined holes tangent to the inner wall of the housing are uniformly distributed on the periphery of the housing.

According to the spiral reamer device special for the detachable anti-blocking celery hilling, the front end of the reamer shaft is provided with the dismounting hole.

The transmission shaft and the reamer shaft adopt a split structure, the rear end of the reamer shaft is connected with the spiral soil taking driving mechanism through the transmission shaft, so that the overall length of the spiral reamer is greatly shortened, when the spiral reamer needs to be maintained and replaced, the spiral reamer can be taken down only by inserting a simple tool into the disassembly and assembly hole at the front end of the reamer shaft to reversely rotate the spiral reamer, the disassembly and assembly are very convenient, and the maintenance efficiency is high. Meanwhile, the spiral reamer adopts a segmented design, the structure is simple, the cost is low, the soil drilling section is conical, the soil drilling is facilitated, the pitch of the spiral blade of the soil taking section is smaller than that of the spiral blade of the extrusion section, large stones can be prevented from entering the reamer through the soil taking section, and small stones enter the extrusion section through the soil taking section, are smoothly extruded due to the fact that the pitch of the spiral blade of the extrusion section is large, the reamer cannot be blocked, and the soil accumulation efficiency is greatly improved. In addition, the diameter of the helical blade of the soil taking section is gradually reduced from front to back, and the diameter of the helical blade at the front end of the helical blade is large, so that the soil taking amount is large, and the gradual extrusion forming of the soil of the subsequent extrusion section is facilitated. The spiral blades of the extrusion section are of a structure with equal pitch and equal diameter, and can smoothly extrude soil input by the soil taking section into a forming die of the hiller. The ratio L1 of the length L1 of the drilling soil section, the length L2 of the soil taking section and the length L3 of the extrusion section: l2: l3 is 1: 4: and 5, smooth hilling can be ensured, and the hilling forming is facilitated. The rear end of the housing is cylindrical, the front end of the housing is horn-shaped, the helical blade on the helical reamer is convenient to match in shape, a plurality of high-pressure water spraying inclined holes are uniformly distributed on the periphery of the housing, the inclined holes are tangent to the inner wall of the housing, the high-pressure water spraying inclined holes can be prevented from being blocked by soil, high-pressure water is sprayed into the soil surface in the housing through the high-pressure water spraying inclined holes, soil can be lubricated, the friction force between the soil and the helical reamer and the housing is reduced, the soil can be conveniently extruded and conveyed, the water content of the soil can be adjusted, and. The clearance a between the inner wall of the housing and the helical blade is 1 mm-2 mm, which can meet the soil taking requirement and the soil compression ratio of hilling forming.

Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the construction of the helical reamer of the present invention;

fig. 3 is a schematic cross-sectional structure of the housing of the present invention.

Detailed Description

The invention is further illustrated by the following figures and examples.

The direction of the arrows in fig. 1 and 2 is front, and vice versa.

As shown in fig. 1, 2 and 3, the present invention includes a drive shaft 1, a helical reamer 2 and a housing 3 opened at a front side. The transmission shaft 1 and the spiral reamer 2 are obliquely arranged, the inclination angle alpha is 30 degrees, the rear end of the transmission shaft 1 is fixedly connected with a belt pulley through a flat key, two ends of the transmission shaft 1 are supported on a rack through two bearings 4, the spiral reamer 2 comprises a reamer shaft 21 and spiral blades 22 axially welded and fixed on the reamer shaft 21, the front end of the transmission shaft 1 is in threaded connection with the rear end of the reamer shaft 21, a drill bit 23 is arranged at the front end of the reamer shaft 21, and a dismounting hole 24 is further arranged at the front end of the reamer shaft 21. Spiral reamer 2 includes the earth section A that bores that sets gradually backward in the past, earth section B and extrusion section C of getting, it diminishes from backward to forward gradually to bore earth section A helical blade diameter, it is whole conical, earth section B helical blade is the constant pitch diameter-changing structure, earth section B helical blade pitch S1 is less than extrusion section C helical blade pitch S2, earth section B helical blade anterior segment and the earth section A helical blade posterior segment that bores meet, the two diameter equals, then earth section B helical blade diameter reduces from the front to the back gradually, earth section B helical blade minimum diameter D1 equals extrusion section C helical blade diameter D2 of getting, extrusion section C helical blade is the constant pitch diameter-changing structure. In the embodiment, S1 is 100mm, S2 is 110mm, D1 is 184mm, and the maximum diameter D3 of the helical blade of the soil sampling segment B is 218 mm. In addition, the ratio of the length L1 of the drill bit section A, the length L2 of the soil sampling section B and the length L3 of the extrusion section C is L1: l2: l3 is 1: 4: in this embodiment, L1-60 mm, L2-240 mm, and L3-300 mm.

The housing 3 covers the spiral reamer 2 and is fixedly connected with the rack, the rear end of the housing 3 is cylindrical and is matched with the shape of an extrusion section C of the spiral reamer 2, the front end of the housing 3 is horn-shaped and is matched with the shape of a soil taking section B of the spiral reamer 2, and the gap a between the inner wall of the housing 3 and the spiral blade 22 is 1-2 mm. Four high-pressure water spraying inclined holes 31 tangent to the inner wall of the housing 3 are uniformly distributed on the periphery of the housing 3, the high-pressure water spraying inclined holes 31 are uniformly distributed at the front end and the rear end of the housing 3, and the high-pressure water spraying pipes 32 are welded and fixed on the high-pressure water spraying inclined holes 31.

During operation, power is input through a belt pulley at the rear end of a transmission shaft 1, the transmission shaft 1 drives a reamer shaft 21 to rotate at a rotating speed of 350-400 r/min, so that the whole spiral reamer 2 runs, a drill bit 23 of the spiral reamer 2 advances to insert into soil, a soil taking section B takes soil and sends the soil into an extrusion section C, high-pressure water is sprayed to the surface of the soil in a housing 3 through a high-pressure water spraying pipe 32 on a high-pressure water spraying inclined hole 31, the soil is pushed and extruded along a cavity between a spiral blade 22 and the inner wall of the housing 3 under the lubrication of water, and is extruded out of an opening 33 at the rear end of the housing 3 and enters a soil hilling forming die. In the operation process, if the size of debris such as stone is greater than spiral reamer 2 and gets pitch S1 of native section B, then pushed to the housing 3 outside, can't get into in the spiral reamer 2, if the size of debris such as stone is less than spiral reamer 2 and gets pitch S1 of native section B, then pushed into spiral reamer 2 and get in the cavity between native section B helical blade and the housing 3 to further pushed extrusion section C, because extrusion section C pitch is big, debris such as stone are smoothly extruded, throw away to in the hilling forming die, can not block up.

When the reamer is maintained and disassembled, the machine stops running, a simple tool is inserted into the disassembling and assembling hole at the front end of the reamer shaft, and the reamer shaft can be reversely rotated to realize the assembling, disassembling and separating of the reamer shaft and the transmission shaft.

In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.

Claims

1. A detachable anti-blocking spiral reamer device special for white celery hilling comprises a transmission shaft, a spiral reamer and a housing with an open front side; the rear end of the transmission shaft is fixedly connected with the belt pulley through a flat key, two ends of the transmission shaft are supported on the rack through two bearings, the spiral reamer comprises a reamer shaft and a spiral blade axially fixed on the reamer shaft, the front end of the transmission shaft is in threaded connection with the rear end of the reamer shaft, a drill bit is arranged at the front end of the reamer shaft, and the cover shell covers the spiral reamer and is fixedly connected with the rack; the method is characterized in that: the transmission shaft and the spiral reamer are obliquely arranged; the spiral reamer comprises a soil drilling section, a soil taking section and an extrusion section which are sequentially arranged from front to back, the diameter of a spiral blade of the soil drilling section is gradually reduced from back to front, the whole body is conical, the spiral blade of the soil taking section is of a constant-pitch diameter-variable structure, the pitch S1 of the spiral blade of the soil taking section is smaller than the pitch S2 of the spiral blade of the extrusion section, the most front section of the spiral blade of the soil taking section is connected with the most rear section of the spiral blade of the soil drilling section, the diameters of the two sections are equal, then the diameter of the spiral blade of the soil taking section is gradually reduced from front to back, the minimum diameter D1 of the spiral blade of the soil taking section is equal to the diameter D2; the periphery of the housing is uniformly provided with a plurality of high-pressure water spraying inclined holes tangent to the inner wall of the housing, the high-pressure water spraying inclined holes are uniformly distributed at the front end and the rear end of the housing, and the high-pressure water spraying pipes are welded and fixed on the high-pressure water spraying inclined holes.

2. The detachable anti-clogging spiral reamer device special for white celery hilling, according to claim 1, characterized in that: the ratio L1 of the length L1 of the drilling soil section, the length L2 of the soil taking section and the length L3 of the extrusion section: l2: l3 is 1: 4: 5.

3. the detachable anti-clogging spiral reamer device special for white celery hilling, according to claim 1, characterized in that: the rear end of the housing is cylindrical, and the front end of the housing is horn-shaped.