JP2013031417A - Method of assembling the pressing roller of agricultural equipment, and the pressing roller of agricultural equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the pressing roller of agricultural equipment, which can be provided at a low price using a commercially available resinous tube in which many parallel ribs are arranged in a circumferential direction and which can so fix the resinous tube as not to come out, relating to a pressing roller used for farmwork.SOLUTION: The commercially available resinous tube 10 in which many parallel ribs 10a are arranged in a circumferential direction is used to fix a shaft 11 in the tire wheel 21 of a pneumatic tire 20 fitted in a tire wheel 21 to be fitted inside the resinous tube 10 while the pneumatic tire 20 is deflated, and then, the pneumatic tire 20 is inflated while the resinous tube 10 and the shaft 11 are put in predetermined positions.

Description

  The present invention relates to a pressure-reducing roller for use in agricultural work such as performing a stepping operation on wheat before or after overwintering and crushing a field before sowing. The present invention also relates to a pressure-reducing roller that can be used in combination with a oyster harrow that removes rot of wheat after overwintering.

  In general, as a pressure-reducing roller used for farm work, a hollow cylinder having a smooth outer shape and a plurality of diamond-shaped hollow rings, such as a multipacker and a Cambridge roller, are known.

  In addition, various types of pressure reducing rollers have been proposed to compensate for the drawbacks of the general pressure reducing rollers described above.

  For example, as shown in Japanese Examined Patent Publication No. 53-5206, there is known a pressure reducing roller in which a large number of old tires having the same diameter are connected in series, and a weight adjustment base is provided thereon. According to the present invention, leveling according to the state of the field can be easily performed and can be manufactured at low cost.

  Further, as shown in Japanese Utility Model Publication No. 33-13321, a pair of semicircular covering pieces having a U-shaped cross section are formed on a driving wheel, which is a rubber wheel of a tow truck mounted with a prime mover. There is known a treadle wheel cover that can be opened and closed by a hinge attached to one end, and is fastened between a mounting hole at the end of one cover piece and a through hole at the end of the other cover piece. Yes. According to this device, although it has a simple structure, it can be easily and quickly treaded by attaching it.

  Further, as shown in Japanese Utility Model Publication No. 38-20231, a cylindrical film made of an elastic film-like body is formed between a plurality of ring-like bodies by loosely fitting or fixing the ring-like body to the rod-like body at an appropriate interval. Agricultural crushing rollers that are spread out are known. According to this device, a string is slidably attached around both openings of the tubular membrane, the ends of each string are tied together, the tubular membrane is placed on the ring-shaped body, and it is fastened and fixed. It is said that there is little soil attachment, and the shape of the suppression ground can be changed.

  In addition, as shown in Japanese Utility Model Publication No. 57-49622, a rubber plate is provided with a number of fine parallel ridges having a trapezoidal shape with a cross section removed, and the rubber plate is circumferentially arranged with the ridges in the circumferential direction. Agricultural work machine pressure-reducing roller affixed to the surface is known. According to this device, the increase in the contact area due to the biting of the ridge into the ground and the resistance of the rubber plate having a large friction with the soil are synergistic, and it is possible to ensure rotation without slipping at all. .

  Further, as shown in the microfilm of Japanese Utility Model Application No. 59-92037 (Japanese Utility Model Application Publication No. 61-7901), a tractor cocoon forming apparatus is known in which the cocoon forming roller is formed of a bellows hose. According to this device, since the shape of the bellows hose can be arbitrarily changed, it can be used in various saddle shapes. In addition, attachment of a bellows hose and a support frame fixes a disk-shaped bracket to the edge part of a bellows hose, and supports this with the shaft pin of a support frame.

  Further, as shown in the microfilm of Japanese Utility Model Application No. 55-173493 (Japanese Utility Model Application Publication No. 57-94302), a plurality of rollers are arranged in series, and each of the rollers is rotatably supported by the support frame. There is known a pressure reducing roller device for agricultural use in which a machine frame connected to a tractor is coupled with a pin so as to be swingable to the left and right separately. According to this device, it is said that even if there is a difference in height by putting a roller on each two adjacent ridges of the cocoon, the pressure can be evenly suppressed to promote uniform germination.

  In addition, as shown in Japanese Utility Model Publication No. 60-41041, in a scissor forming machine provided with a top compaction roller and a shoulder compaction roller positioned so as to be able to roll on the collar surface, these compaction rollers are viewed from the advancing direction. In this case, the left and right ends of the top pressure roller and the end of the shoulder pressure roller overlap with each other to form a continuous and smooth surface.

Japanese Patent Publication No.53-5206 Japanese Utility Model Publication No. 33-13321 Japanese Utility Model Publication No. 38-20231 Japanese Utility Model Publication No. 57-49622 Microfilm of actual application No.59-92037 Microfilm of actual application No.55-173493 Japanese Utility Model Publication No. 60-41041

  The one provided with a number of fine parallel protrusions shown in the Japanese Utility Model Publication No. 57-49622 in the circumferential direction has good soil tightening and a high suppression effect. However, if the rubber plate is affixed to the peripheral surface, the rubber plate may be peeled off, and an expensive mold is required to manufacture the rubber plate in a cylindrical shape.

  Therefore, it is conceivable to reduce the cost by using a commercially available resin hose, such as the bellows hose shown in the microfilm of Japanese Utility Model No. 59-92037 (Japanese Utility Model Application No. 61-7901). This bellows hose is a soft one that can arbitrarily change the shape of the bellows hose, but it cannot be sufficiently uniformly pressed down because it is deformed to pack down a flat field. The attachment of the bellows hose and the support frame is described as fixing the disc-shaped bracket to the end of the bellows hose, but it is clear how to fix the disc-shaped bracket to the end of the resin bellows hose. Instead, a secure fixing method that does not come off is required.

  Therefore, the present invention can be provided at low cost by using a commercially available resin pipe provided with a large number of parallel protrusions in the circumferential direction, securely fixed without coming out of the resin pipe, and even in a long resin pipe An object of the present invention is to provide a pressure-reducing roller for agricultural machines, in which the pressure-reduction is not weakened due to deformation.

  The method for assembling the pressure-reducing roller of the agricultural machine according to claim 1 is a pneumatic tire 20 fitted into a tire wheel 21 using a commercially available resin pipe 10 provided with a number of parallel protrusions 10a in the circumferential direction. The pneumatic tire 20 has a diameter larger than the inner diameter of the resin tube 10 in the air-filled state, and the inside of the resin tube 10 in the state in which the pneumatic tire 20 is evacuated. The pneumatic tire 20 is filled with air with the resin pipe 10 and the shaft 11 in a predetermined position.

  The pressure reducing roller of the agricultural machine according to claim 2 is a pair of pneumatic tires that are fitted inside a commercially available resin pipe 10 provided with a number of parallel protrusions 10a in the circumferential direction and have a diameter larger than the inner diameter thereof. 20 is supported at both ends of the resin pipe 10.

  The pressure reducing roller of the agricultural machine according to the invention of claim 3 is provided with a pneumatic tire 20 that is fitted inside a commercially available resin pipe 10 provided with a large number of parallel protrusions 10a in the circumferential direction and has a diameter larger than the inner diameter thereof. Three or more are supported at almost equal intervals.

  According to invention of Claim 1, since the commercially available resin-made pipe | tube 10 which provided many parallel protrusions 10a in the circumferential direction was used, the pressure suppression roller with the parallel protrusions 10a can be provided at low cost.

  Further, the pneumatic tire 20 is fitted inside the resin pipe 10 with the air removed, and air is introduced into the pneumatic tire 20 with the resin pipe 10 and the shaft 11 in a predetermined position. Since the diameter is larger than the inner diameter of the resin pipe 10 in the air-filled state, the resin pipe 10 can be reliably fixed without coming off.

  According to the invention of claim 2, a pair of pneumatic tires 20 which are fitted inside the commercially available resin pipe 10 provided with a large number of parallel protrusions 10a in the circumferential direction and whose diameter is larger than the inner diameter thereof are made of resin. Since it supports at the both ends of the pipe | tube 10, the pressure-reduction roller with the parallel protrusion 10a can be provided cheaply.

  According to the invention of claim 3, the pneumatic tires 20 having a large number of parallel protrusions 10 a fitted in the circumferential direction on the inner side of the commercially available resin pipe 10 and having a diameter larger than the inner diameter thereof are substantially equally spaced. Since three or more pipes are supported, the central portion is not deformed even in the long resin pipe 10, and the suppression is not weakened.

  FIG. 1 is a plan view showing a first embodiment of a pressure-reducing roller of an agricultural machine.   FIG. 2 is a front view of FIG.   FIG. 3 is a side view of FIG.   FIG. 4 is a partially enlarged view of FIG.   FIG. 5 is a diagram showing the operating state of FIG.   6 is a cross-sectional view of FIG.   FIG. 7 is a diagram showing Example 2 of FIG.   FIG. 8 is a diagram showing the third embodiment of FIG.

  The purpose of providing a pressure reducing roller for agricultural machines that can be provided at low cost using commercially available resin pipes provided with a large number of parallel protrusions in the circumferential direction, and securely fixed without coming out of the resin pipes. Using a commercially available resin pipe 10 provided with parallel protrusions 10a in the circumferential direction, the shaft 11 is fixed to the tire wheel 21 of the pneumatic tire 20 fitted into the tire wheel 21, and the pneumatic tire 20 is filled with air. The inner diameter of the resin tube 10 is larger than the inner diameter of the resin tube 10, and the pneumatic tire 20 is fitted inside the resin tube 10 with the air removed, and the resin tube 10 and the shaft 11 are in a predetermined position. This was realized by putting air into the tire 20.

  Moreover, the commercially available resin pipe 10 which provided many parallel protrusions 10a in the circumferential direction for the purpose of providing the pressure-reducing roller of the agricultural working machine in which the central part is not deformed and the pressure reduction is not weakened even with a long resin-made pipe. This is achieved by supporting three or more pneumatic tires 20 that are fitted inside the tire and have a diameter larger than the inner diameter thereof.

  FIG. 1 is a pressure-reducing roller 1 for a farm machine according to a first embodiment of the present invention.

  The pressure-reducing roller 1 includes a oyster bird harrow 8 that removes rot of wheat after overwintering, and a resin tube 10 that serves as a roller for performing a wheat treading operation.

  The pressure reduction roller 1 has a machine frame 2, a mounting hitch 3 as a tractor mounting part in front of the machine frame 2, and a weight for placing a weight for adjusting the load of the resin pipe 10 on the upper rear part of the machine frame 2. A stand 4 is provided. The pressure reducing roller 1 advances by being pulled by the tractor. The mounting position of the weight table 4 can be changed to a fixed position in three stages, front and rear, so that the load applied to the pressure reducing roller 1 can be adjusted.

  At the lower part of the machine frame 2, the roller support frame 5 is provided at the left central part and the right rear part in the traveling direction. The roller support frame 5 is substantially U-shaped in a plan view that is long in the horizontal direction, and a resin pipe 10 as a roller is accommodated inside the approximately U-shape, and protrudes forward to the front center portion of the roller support frame 5. The pin 5a is provided, and the pin 5a is fitted into the machine frame 2 so as to freely rotate. As shown in FIG. 5, the roller support frame 5 can be rotated by a predetermined angle with respect to the machine frame 2 to cause the resin pipe 10 to follow the unevenness of the field. Further, when the resin pipe 10 is viewed from the advancing direction, there is no leftover with the end portions of the left and right resin pipes 10 overlapping.

  A pair of left and right hello frames 6 is provided below the machine frame 2, and a long hello mounting rod 7 is provided below the hello frame 6 in the horizontal direction. The hello mounting rod 7 is movable up and down by a predetermined distance by a parallel link with respect to the hello frame 6, and the hello mounting rod 7 is provided with a large number of oyster halos 8 at the front, rear, left and right elongated mounting portions. The oyster bird 8 is a screw coil spring shape of steel wire, and elastically touches the wheat to remove rot and promote growth.

  When the oyster harrow 8 is not used, the hello frame 6 can be detached from the machine frame 2. Further, when the oyster harrow 8 is not used, the mounting hitch 3 can be moved rearward, so that the overall length can be shortened.

  The resin pipe 10 as a roller is made of a commercially available high-density polyethylene resin provided with a number of parallel protrusions 10a in the circumferential direction, and a Howell pipe (pressure-resistant polyethylene rib pipe) used as a drain pipe in civil engineering work. Is representative. The Howell tube has such a great rigidity that it can withstand the earth pressure when it is buried.

  A hollow portion 10b is provided in the parallel protrusion 10a, which is a trapezoidal chevron of the resin pipe 10, and the inner diameter of the resin pipe 10 is substantially smooth. In the examples, two Howell tubes having an inner diameter of 480 mm, an outer diameter of 590 mm, and a length of about 1,630 mm were used.

  A pair of pneumatic tires 20 that are fitted inside the resin pipe 10 and have a diameter larger than the inner diameter thereof are provided. A pair of pneumatic tires 20 are supported at both ends of the resin pipe 10.

  The pneumatic tire 20 is fitted into the tire wheel 21, and the flanged shaft 11 is fixed to the tire wheel 21. The pneumatic tire 20 is inflated by injecting air from a valve, and has a predetermined strength such as a transportation vehicle. In the example, the pneumatic tire 20 having an outer diameter of 514 mm was used.

  Bearings 12 are provided at both ends of the roller support frame 5, and the shaft 11 is fitted and fixed to the bearing 12. As shown in FIG. 2, the front and rear resin pipes 10 are configured such that when viewed from the front, the end portions overlap and there is no unstepped portion.

  Next, a method for assembling the resin pipe 10 as a roller will be described.

  The shaft 11 is fixed to the tire wheel 21 of the pneumatic tire 20 fitted in the tire wheel 21. Next, the pneumatic tire 20 is fitted inside the resin pipe 10 with the air removed. Subsequently, when air is introduced into the pneumatic tire 20 in a state in which the resin pipe 10 and the shaft 11 are in predetermined positions, that is, in a state where the parallelism and the horizontal position of the resin pipe 10 and the shaft 11 are set, The entering tire 20 has a diameter larger than the inner diameter of the resin pipe 10, and is in close contact with the inner side of the resin pipe 10 to be securely fixed.

  Next, Example 2 in which the number of the pneumatic tires 20 shown in FIG. 7 is three will be described.

  A flange 14 is provided at the center of the shaft 13 that is long in the horizontal direction, and a tire wheel 21 of a pneumatic tire 20 is fixed to the flange 14.

  A pair of flanges 15 with bosses are provided at both ends of the shaft 13, and the tire wheel 21 of the pneumatic tire 20 is fixed to the flanges 15 with bosses.

  These three pneumatic tires 20 are fitted inside the resin pipe 10.

  As a result, a large number of parallel protrusions 10a are fitted inside the commercially available resin pipe 10 provided in the circumferential direction, and three pneumatic tires 20 having a diameter larger than the inner diameter are supported by three at equal intervals. Even the long resin pipe 10 does not deform the central portion and weaken the pressure.

  Next, a method for assembling the resin pipe 10 as a roller will be described.

  The tire wheel 21 of the pneumatic tire 20 fitted in the tire wheel 21 is fixed to the flange 14 provided at the center of the shaft 13. Next, the pneumatic tire 20 is fitted inside the resin pipe 10 with the air removed. Subsequently, when air is introduced into the pneumatic tire 20 in a state where the resin pipe 10 and the shaft 13 are in predetermined positions, that is, in a state where the parallelism and the horizontal position of the resin pipe 10 and the shaft 13 are set, The entering tire 20 has a diameter larger than the inner diameter of the resin pipe 10, and is in close contact with the inner side of the resin pipe 10 to be securely fixed.

  The flange 15 with the boss is fixed to the tire wheel 21 of the pneumatic tire 20 fitted in the tire wheel 21. Next, the pneumatic tire 20 is fitted into the inside of the resin pipe 10 with the air removed, and the bossed flange 15 is fitted and fixed to the shaft 13. When air is introduced into the pneumatic tire 20, the pneumatic tire 20 becomes larger in diameter than the inner diameter of the resin pipe 10, and is firmly fixed to the inner side of the resin pipe 10.

  Next, Example 3 using four pneumatic tires 20 shown in FIG. 8 will be described.

  Two flanges 14 are provided at a predetermined interval, which is a distance of about one third of the length of the resin pipe 10, at the center of the shaft 13 that is long in the horizontal direction, and the tire wheel 21 of the pneumatic tire 20 is fixed to the flange 14. To do.

  A pair of flanges 15 with bosses are provided at both ends of the shaft 13, and the tire wheel 21 of the pneumatic tire 20 is fixed to the flanges 15 with bosses.

  These four pneumatic tires 20 are fitted inside the resin pipe 10.

  As a result, a large number of parallel protrusions 10a are fitted inside the commercially available resin pipe 10 provided in the circumferential direction, and four pneumatic tires 20 having a diameter larger than the inner diameter are supported by four at substantially equal intervals. Even the long resin pipe 10 does not deform the central portion and weaken the pressure.

  Next, a method for assembling the resin pipe 10 as a roller will be described.

  Two of the tire wheels 21 of the pneumatic tire 20 fitted in the tire wheel 21 are fixed to a flange 14 provided at the center of the shaft 13. Next, the pneumatic tire 20 is fitted inside the resin pipe 10 with the air removed. Subsequently, when air is introduced into the pneumatic tire 20 in a state where the resin pipe 10 and the shaft 13 are in predetermined positions, that is, in a state where the parallelism and the horizontal position of the resin pipe 10 and the shaft 13 are set, The entering tire 20 has a diameter larger than the inner diameter of the resin pipe 10, and is in close contact with the inner side of the resin pipe 10 to be securely fixed.

  The flange 15 with the boss is fixed to the tire wheel 21 of the pneumatic tire 20 fitted in the tire wheel 21. Next, the pneumatic tire 20 is fitted into the inside of the resin pipe 10 with the air removed, and the bossed flange 15 is fitted and fixed to the shaft 13. When air is introduced into the pneumatic tire 20, the pneumatic tire 20 becomes larger in diameter than the inner diameter of the resin pipe 10, and is firmly fixed to the inner side of the resin pipe 10.

  In the above embodiment, the resin pipe 10 is shown as a Howell pipe. However, the resin pipe 10 has an appropriate rigidity and is commercially available provided with a number of parallel protrusions 10a in the circumferential direction. good.

  Moreover, although the example of two to four pneumatic tires 20 has been shown, the number of pneumatic tires 20 may be five or more.

DESCRIPTION OF SYMBOLS 10 Resin pipe | tube 10a Parallel protrusion 11 Axis 20 Pneumatic tire 21 Tire wheel

Claims (3)

  The shaft 11 is fixed to the tire wheel 21 of the pneumatic tire 20 fitted in the tire wheel 21 by using a commercially available resin pipe 10 provided with a large number of parallel protrusions 10a in the circumferential direction. In a state where the inner diameter of the resin tube 10 is larger than the inner diameter of the resin tube 10 and the pneumatic tire 20 is deflated, it is fitted inside the resin tube 10 and the resin tube 10 and the shaft 11 are in a predetermined position. A method for assembling a pressure-reducing roller of a farm machine with air in the pneumatic tire 20.   Agricultural work in which a large number of parallel protrusions 10a are fitted inside a commercially available resin pipe 10 provided in the circumferential direction, and a pair of pneumatic tires 20 having a diameter larger than the inner diameter are supported at both ends of the resin pipe 10 Pressing roller of the machine.   A farm working machine in which a large number of parallel ridges 10a are fitted inside a commercially available resin pipe 10 provided in the circumferential direction and supported by three or more pneumatic tires 20 having a diameter larger than the inner diameter thereof. Crushing roller.

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