JPH0494740A - Power transmission in rice husker - Google Patents

Abstract

PURPOSE:To raise husking power and to prevent breakage of a device by forming one side of the transmission pulleys of a pair of husking rollers into a strong transmission face having unevenness on the outside peripheral face and forming the other side thereof into a weak transmission face having the even outside peripheral face and engaging the transmission belts which have the strong transmission face and the weak transmission face. CONSTITUTION:The transmission pulley 10 of a main axis 9 is formed of a two-step pulley. When motive power is transmitted, the strong transmission face 18a of a transmission belt 18 is engaged with the strong transmission face 10a of a transmission pulley 10 and the transmission belt 18 is rotated. Thereby the strong transmission face 18a of the transmission belt 18 is engaged with the strong transmission face 14a of a paddy feed pulley 14, the strong transmission face 16a of a tension pulley 16 and the strong transmission face 15a of a pulley 15. The strong transmission face 18b of the transmission belt 18 is engaged with the weak transmission face 12a of a transmission pulley 12 in an auxiliary axis 11 side. While the pulleys 10, 12, 14, 15, 16 are rotated and the transfer force to the husking rollers 6,7 is increased, rice husking is performed. When excessive load is charged on the husking rollers 6, 7 by a foreign matter during rice husking operation, the husking roll 7 is slipped for the husking roll 6. Thereby the husking rolls 6,7, the transmission pulley and the transmission belt are prevented from being damaged.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a transmission device for a rice hulling device.

[Prior Art and Problems to be Solved by the Invention] Japanese Unexamined Patent Publication No. 58-40155 discloses a conventional device in which a pair of demolition rolls rotating in opposite directions are driven by a transmission belt. In this conventional device, when driving a pair of demolition rolls by a transmission pulley, the surfaces of both transmission pulleys were made smooth, and both sides of the transmission belt were made smooth. Therefore, since the power transmission force is weak, the demolition force of the demolition roll is weak, and the demolition rate tends to be low, and there is a problem in that special attention must be paid to the tension of the transmission belt.

Therefore, in driving the transmission pulleys of a pair of demolition rolls, this invention transmits power to one of the transmission pulleys in the direction of one side of the transmission bell I through a strong transmission surface configured with a tooth profile, etc. By driving the pulley with a weak transmission surface that does not have a tooth profile on the other side, the transmission force is increased and the drawbacks of the conventional device are attempted to be overcome.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems is a pair of de-walling rolls 6 that rotate in opposite directions.
．． Transmission pulley 1.0.12 attached to 7,
One of the transmission rolls 12 has a strong power transmission surface 10a having an uneven outer periphery, and the other power transmission roll 12 has a smooth adjustment surface 12a having a smooth outer periphery.
The transmission belt 18, which has a strong transmission surface 18a that can mesh with the transmission belt a and a smooth adjustment surface 18b on the other side, is wound around both transmission pulleys 10 and 12 to transmit power. To do this, the strong transmission surface of the transmission belt 18 is engaged with the strong transmission surface 10a of the transmission pulley 10,
The structure of the transmission device of the hulling device is characterized in that the adjustment movement surface 18b of the transmission belt 18 is engaged with the adjustment movement surface 12a of the transmission pulley 12.

[Function and effect of the invention]

When driving the transmission pulleys 10 and 12 to which the pair of de-walling rolls 6.7 that rotate in opposite directions are attached, one of the transmission pulleys 10 and 12, which has a strong transmission surface 10a formed with irregularities on its outer periphery, is used. pulley 10, transmission belt 1
8, and the transmission pulley 12, which has an adjustment movement surface 12a formed on its outer peripheral surface, is driven by an adjustment movement surface 18b on the other side of the transmission belt 18. Although it is possible to increase the power transmission force to the demolition roll 6 and increase the demolition force, it can be used when an abnormal load is applied to the demolition roll 6.7 due to foreign matter such as stones being supplied. In this case, the other demolition roll 7 is the adjustment surface 18b.
Adjustment movement surface 12a of the transmission belt 18 and the transmission pulley 12
Since it is configured to be driven by a strong power transmission surface 18b, the transmission belt 18 having a strong power transmission surface 18b and the strong power transmission surface 10a of the power transmission pulley 10 will not slip against the other deburring roll 6 which is strongly driven. damage to the equipment, and
It is possible to effectively prevent damage to the transmission pulley and transmission belt on which a strong transmission surface is formed.

〔Example〕

-4~ Hereinafter, embodiments of the present invention shown in the drawings will be described.

First, the configuration of the embodiment will be explained.

This hulling and sorting machine consists of a dehulling section 1 that performs the hulling work;
It is composed of a wind sorting machine 2 that wind-sorts the rice that has fallen through the wind, and a swinging sorting device 3 that sorts the mixed rice after the wind sorting in the wind sorting machine 2 into paddy and brown rice. A de-screening section 1 is placed on the upper part of the wind sorting machine 2, and a swing sorting device 3 is arranged behind the wind-selecting section 1 and the wind sorting machine 2.

The unhulling section 1 includes a paddy hopper 4. It consists of 5 breakout rooms,
A pair of de-moulding rolls 6.7 that rotate in opposite directions are supported in the de-moulding chamber 5. This pair of dehaku rolls 6
．． One of the movable demolition rolls 7 is supported by a fixed shaft on a fixed demolition roll 6, while the other movable demolition roll 7 is supported by an arm 8.
9 is a known demolition roll gap adjustment device that adjusts the movement of the movable demolition roll 7 in the distance direction.

Next, the drive device for the wall removing section 1 will be explained.

Reference numeral 9 denotes a main shaft that rotates integrally with the fixed demolition roll 6, and a transmission preform 10 having a strong transmission surface 10a formed on the outer peripheral surface with an uneven surface such as a tooth shape is fixed to the main shaft 9. .

11 is a subshaft that rotates integrally with the movable wall removal roll 7;
This countershaft 11 has a plurality of longitudinal V grooves formed on its outer circumferential surface, and a regulating surface 12 on which no uneven surface such as a tooth profile is formed.
A transmission pulley 12, denoted by a, is fixedly attached. Reference numeral 13 denotes a paddy feed roll provided corresponding to the downstream opening of the paddy hopper 4, and the outer end of the shaft portion 13a of the paddy feed roll 13 has a strong transmission surface 10a similar to the strong transmission surface 10a of the transmission pulley 10. strong transmission surface 1
The paddy feed pulley 14 formed with 4a is fixed. 15 is a pulley on which a strong transmission surface 15a is formed, 16 is a tension pulley on which a strong transmission surface 16a is formed, and the shaft portion of this tension pulley 16 is as follows.
Reference numeral 618 supported by the spring 17 is a power transmission belt, the center of which is made of rubber and core wire, and one side of the power transmission belt 18 forms a tooth shape as shown in FIG. The outer periphery of this tooth profile is formed into a strong transmission surface covered with a strong cloth, and this tooth profile is formed on the transmission pulley 10. Paddy feed pulley 14° pulley 15. It is configured to mesh with the tooth profile of the tension pulley 16, and the other side surface is configured as an adjustment surface 18b that has many grooves in the longitudinal direction and has no unevenness in the lateral direction.

Then, 18 is connected to the transmission pulley 10°12 to this transmission bell 1.
, paddy feed pulley 14. Pulley 15. Tension pulley 1
6, use the transmission pulley 1 on the main shaft 9 side.
0. Paddy feed pulley 14. Strong transmission surface 10a of tension pulley 16 and pulley 15.

14a, 16a, 15a and the strong transmission surface 18a of the transmission belt 18 are configured to mesh with each other, so that the transmission force is increased, and the adjustment motion surface 1 of the transmission pulley 12 of the subshaft 11
．． 2a and the adjustment movement surface 18b of the transmission belt 18 are configured to be in contact with each other.

The swinging sorting device 3 includes a swinging sorting plate 19. Side walls 20, 20. provided on three sides of the swing sorting plate 19 excluding the discharge side.
..., inclination adjustment means 21 of the swinging sorting plate 19. Swinging arms 22, 22. which are swung by a swiveling device (not shown). Distribution gutter 23. Brown rice partition plate 24゜Paddy rice partition plate 25. Brown rice outlet 26. 629 is a brown rice lifting machine, 30 is a mixed rice lifting machine, which is composed of a mixed rice outlet 27, a paddy rice outlet 28, etc.
1 is a paddy rice frying machine.

Next, the rice husk discharge device 3 shown in FIGS. 6 and 7
2 will be explained. This rice husk discharge device 32 is provided on the discharge side of the dust exhaust pipe 33 of the wind sorting machine body 2, and includes a discharge fan 34. A casing 35 surrounding the exhaust fan 34. It consists of a discharge pipe 36 connected to the discharge part of the casing 35.

On the outer peripheral side of the discharge fan 34 in the radial direction of the casing 35, there is a rice husk accumulation chamber 37 in which rice husks that have entered from the upper side in the rotational direction of the discharge fan 34 can be deposited.
, 37. A large number of deposition chambers 37, 37 .・
A wear-resistant material 38, such as ceramic, is attached to the inner peripheral side facing the exhaust fan 34. Therefore, the rice husks discharged by the discharge fan 34 are transported from the inlet to the deposition chambers 37, 37. It flows into and is deposited in...
The inner peripheral surfaces of the casing deposition chambers 37, 37, . . . facing the exhaust fan 34 are coated with wear-resistant materials 38, 38, . It is something that can improve your sexuality.

Next, the operation of the embodiment will be explained. When carrying out hulling work, the paddy rice lifting machine 3 is
1, unhulled rice is supplied to the unhulled rice lifting machine 31 to the unhulled rice hopper 4 of the devolatilization section 1, and each rotational part of the hulling and sorting machine is driven. Then, from the paddy hopper 4, the devolatilizing roll 6 of the devolatilizing section 1,
The paddy supplied to 7 is subjected to a devolatilization effect, the fallen rice is wind-selected in the fallen rice wind selection path (not shown) of the wind sorting machine 2 located below, and the rice husks are passed through the dust exhaust pipe 33 and the rice husk discharge device. 32 and then ejected from the aircraft. In addition, the mixed rice of brown rice and paddy after wind selection is dropped and supplied to a sliding rice receiving trough (not shown), and is fed to a mixed rice grain lifting machine 30.
, distribution gutter 23 to the swinging sorting plates 19, 19, .

When the swing arm 22.22 swings, the swing sorting plate 19,
19,... swing back and forth in the W direction, and this swinging sorting plate 1
When mixed rice is supplied to step 9, heavy brown rice drifts toward the shaking side 19a due to grain size, specific gravity, friction coefficient, etc. The light unhulled rice flows toward the shaking side 19b, and the mixed rice of unseparated unseparated rice and brown rice drifts toward the middle part. The discharge side 19c of the swinging sorting plates 19, 19, . ,
Further, the unhulled rice is taken out from the unhulled rice outlet 28 and sorted.

Next, the transmission state of the devolatilizing section 1 will be explained.

The transmission pulley 10 of the main shaft 9 is configured as a two-stage pulley, and when power is transmitted from the main motor (not shown) to the transmission pulley 10, a strong transmission surface 10a of the transmission pulley 10 and a strong transmission surface of the transmission belt 18 are generated. 18a meshes with the transmission belt 18
rotates. Then, the strong transmission surface 14 of the paddy feed pulley 14
a, strong transmission surface 16a of tension pulley 16, pulley 1
The strong transmission surface 15a of the transmission belt 18 is attached to the strong transmission surface 15a of the transmission belt 18.
a meshes with each other, and the transmission on the subshaft 11 side! II pulley 1
Adjustment movement surface 12a of No. 2 and adjustment movement surface 18b of transmission belt 18
These pulleys 10, 12゜1-4.1
．． 5.16 is rotated to increase the transmission force to the dehulling roll 6.7, and can remove the hulls. During such hulling work, foreign matter such as stones may be supplied to the dehulling rolls 6 and 7, causing an excessive load. In such cases, one of the dehulling rolls 7 is operated by a transmission pulley. 2 adjustment motion surface 12
The power is transmitted by the engagement between the adjusting surface of the transmission belt 18 and 8b, and the other demolition roll 6 is driven by the transmission pulley 10.
elastic body dynamic surface 10a and strong transmission surface of the transmission belt 18], 8
Since the transmission is carried out through meshing with b, the demolding roll 7 on the sub-shaft 11 side can slip against the demolding roll 6 on the main shaft 9 side, resulting in damage to the demolding rolls 6 and 7 and damage to the transmission belt. This can effectively prevent damage to the elastic body moving surface 18a of No. 18 and the elastic body moving surface 10a of the transmission pulley 10.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway side view, FIG. 2 is a partially cutaway rear view, FIG. 3 is a perspective view, and FIG. 4 is a partially cutaway side view. FIG. 5 is a perspective view, and FIGS. 6 and 7 are cut side views. Description of symbols 2a 3a 1, 4 a ]-5a De-hulling section swinging sorting device De-hulling chamber De-hulling chamber roll Main shaft Strong transmission surface transmission pulley Paddy feed roll Paddy feed pulley pulley Tension pulley Strong transmission surface transmission belt Adjustment movement Surface side wall Wind sorting machine body Paddy hopper De-hulling room Roll arm Power transmission pulley Sub-shaft adjustment Down-moving surface wheel Heavy section Strong power transmission Surface bullet machine Trend Spring Strong power transmission surface Rocking sorting plate Inclination adjustment means Rocking arm Brown rice partition plate Brown rice take-out port Paddy rice removal Outlet Mixed rice fryer Rice husks discharge device Discharge fan Discharge tube Friction-resistant material Distribution gutter Paddy rice partition plate Mixed rice removal outlet Brown rice grain lifter Paddy Rice fryer Dust tube Casing Rice husk accumulation chamber

Claims (1)

[Claims] (1) A pair of de-rolling rolls 6 that rotate in opposite directions,
One of the transmission pulleys 10 and 12 attached to 7 has a strong transmission surface 10a having an uneven outer peripheral surface, and the other transmission roll 12 has a weak transmission surface 12a with a smooth outer peripheral surface. , a transmission belt 18 having one surface configured as a strong transmission surface 18a capable of meshing with the uneven strong transmission surface 10a and the other surface configured as a smooth weak transmission surface 18b is connected to both transmission pulleys 10. , 12 to transmit power, the strong transmission surface of the transmission belt 18 meshes with the strong transmission surface 10a of the transmission pulley 10, and the weak transmission surface 18b of the transmission belt 18 meshes with the weak transmission surface 12a of the transmission pulley 12. A transmission device for a rice huller that is characterized by meshing.