CN216820778U - Threshing cylinder power transmission system and harvester - Google Patents

Abstract

The utility model relates to a threshing cylinder power transmission system, including belt drive mechanism, universal joint, switching-over case, belt drive mechanism's one end with universal joint's one end is connected, universal joint's the other end with the input shaft of switching-over case, the switching-over case has the output shaft of being connected with threshing cylinder's pivot, the axis of input shaft with the axis of output shaft is perpendicular. The utility model also discloses a harvester that contains threshing cylinder power transmission system. The utility model discloses a set up universal joint between belt drive mechanism and switching-over case, when harvester income foreign matter, slight skew phenomenon appears in the axis of belt drive mechanism's transmission shaft and the axis of the transmission shaft of switching-over case, and universal joint can make belt drive mechanism and switching-over case still normally work in the skew state, has reduced power transmission system's assembly required precision, has reduced the risk that power transmission system broke down.

Description

Threshing cylinder power transmission system and harvester

Technical Field

The utility model relates to the technical field of agricultural machinery, concretely relates to threshing cylinder power transmission system and harvester.

Background

With the development of agricultural modernization in China becoming faster and faster, the requirements of the market on the harvesting machine are improved, and the requirements of users on operability and experience of the harvesting machine are higher and higher.

Threshing devices are important components of harvesters, and their main functions are harvesting, threshing and separating of the fruits from the crops. However, when the threshing device of the harvester harvests crops, foreign matters such as stones are also collected into the threshing device, so that the harvesting mechanism is in an abnormal harvesting state. The harvester is in an abnormal harvesting state for a long time, so that the torque of a transmission system of the harvester is increased, and the harvesting of crops by the harvester is influenced. The increase of the torque of the transmission system of the harvester can cause the axial line of the transmission shaft of the transmission system to deviate, thereby causing the transmission system to damage the threshing device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a threshing cylinder power transmission system and harvester to when solving the harvester and when the foreign matter such as income stone when reaping, the skew phenomenon appears in the axis that leads to transmission system's transmission shaft, thereby leads to transmission system to cause the technical problem of damage to thresher.

The utility model discloses a threshing cylinder power transmission system, including belt drive mechanism, universal joint, switching-over case, belt drive mechanism's one end is connected with universal joint's one end, and universal joint's the other end and the input shaft of switching-over case, switching-over case have the output shaft of being connected with threshing cylinder's pivot, and the axis of input shaft is perpendicular with the axis of output shaft.

The utility model discloses a harvester, which comprises the threshing cylinder power transmission system.

The utility model provides a pair of threshing cylinder power transmission system and harvester can realize following technological effect:

through setting up universal joint between belt drive mechanism and switching-over case, when the harvester was when foreign matter such as income stone in the harvesting process, threshing cylinder power transmission system's moment of torsion increase, slight skew phenomenon appears in the axis of belt drive mechanism's transmission shaft and the axis of the transmission shaft of switching-over case, and universal joint can make belt drive mechanism and switching-over case still normally work in the skew state, has reduced power drive system's assembly precision requirement, has reduced the risk that power drive system broke down.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the invention.

Drawings

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, embodiments in which elements having the same reference number designation are identified as similar elements, and in which:

FIG. 1 is a first schematic view of a power transmission system of a threshing cylinder according to an embodiment of the present invention;

FIG. 2 is a second schematic view of a power transmission system of a threshing cylinder according to an embodiment of the present invention;

FIG. 3 is a first schematic structural view of a power transmission system of a threshing cylinder according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a power transmission system of a threshing cylinder according to an embodiment of the present invention;

FIG. 5 is a third schematic structural view of a power transmission system of a threshing cylinder according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a chain arrangement transmission mechanism according to an embodiment of the present invention;

fig. 7 is an exploded view of an alignment mechanism according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an alignment mechanism according to an embodiment of the present invention;

fig. 9 is an enlarged view of a portion a of fig. 8.

Reference numerals:

1. an engine; 11. a drive shaft; 2. a belt drive mechanism; 21. a first transmission assembly; 211. a first pulley; 212. a second pulley; 213. a first belt; 214. a first drive shaft; 22. a second transmission assembly; 221. a third belt pulley; 222. a fourth pulley; 223. a second belt; 224. a second drive shaft; 23. a third transmission assembly; 231. a fifth pulley; 232. a sixth pulley; 233. a third belt; 234. a third drive shaft; 3. a universal joint; 4. a reversing box; 41. an input shaft; 42. an output shaft; 5. a threshing cylinder; 51. a rotating shaft; 52. a support plate; 6. a chain arrangement transmission mechanism; 61. a first sprocket; 62. a second sprocket; 63. double-row chains; 64. clamping a hoop; 71. a first link; 72. a second link; 73. a bearing seat; 8. a calibration mechanism; 81. positioning a plate; 811. a fixing hole; 82. adjusting a rod; 822. a threaded rod; 823. positioning a nut; 9. a harvester; 91. mounting a plate; 911. rotating the hole; 92. and (7) fixing the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following detailed description of the present invention is made with reference to the accompanying drawings and examples, and it should be understood that the specific examples described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention.

As shown in fig. 1 to 5, the embodiment of the present disclosure provides a power transmission system for a threshing cylinder, which includes a belt transmission mechanism 2, a universal joint 3, and a reversing box 4. The threshing cylinder power transmission system is arranged on the harvester 9 or the threshing cylinder 5 of the harvester 9. The drive is arranged on the harvester 9 or on the threshing cylinder 5. The driver is in transmission connection with the universal joint 3 through the belt transmission mechanism 2. The input shaft 41 of the reversing box 4 is connected with the universal joint 3, the reversing box 4 is provided with an output shaft connected with the rotating shaft 51 of the threshing cylinder 5, and the axis of the input shaft is vertical to the axis of the output shaft.

Through setting up universal joint 3 between belt drive mechanism 2 and switching-over case 4, when the harvester was when foreign matter such as the income stone at the harvesting process, threshing cylinder power transmission system's moment of torsion increase, the slight skew phenomenon appears in the axis of belt drive mechanism's 2 transmission shaft and the axis of the transmission shaft of switching-over case 4, universal joint 3 can make belt drive mechanism 2 and switching-over case 4 still normally work in the skew state, reduced power drive system's assembly precision requirement, reduced the risk that power drive system breaks down.

Specifically, as shown in fig. 1, the drive includes an engine 1. For example, the engine 1 may be a 60AEA04030-SC3 servo motor, which was developed by the times super group. The engine 1 is mounted on the housing of the threshing cylinder 5 of the harvester 9.

As shown in fig. 1 to 5, the belt transmission mechanism 2 includes a first transmission assembly 21, a second transmission assembly 22, and a third transmission assembly 23. The first transmission assembly 21 is arranged on the upper surface of the housing of the threshing cylinder 5. The first transmission assembly 21 includes a first pulley 211, a second pulley 212, a first belt 213, and a first transmission shaft 214. A supporting plate 52 is constructed on the upper surface of the housing of the threshing cylinder 5. Since both ends of the first transmission shaft 214 are mounted in the same manner as the two support plates 52, taking an example of one end of the first transmission shaft 214, one end of the first transmission shaft 214 is inserted through the support plates 52, a bearing seat 73 is fitted to the end of the first transmission shaft 214, the bearing seat 73 is fixedly mounted to the support plates 52, and the first transmission shaft 214 is rotatably connected to the support plates 52. The supporting plates 52 are provided on both sides of the threshing cylinder 5 in the longitudinal direction, and the first transmission shaft 214 can be rotated more stably by the two supporting plates 52 being symmetrically provided on the threshing cylinder 5. After passing through the support plate 52 and the bearing holder 73, one end of the first transmission shaft 214 continues to pass through the hole in the second pulley 212, and the second pulley 212 is fixedly attached to one end of the first transmission shaft 214 by a bolt. The drive shaft 11 of the engine 1 passes through the first pulley 211, and the first pulley 211 is fixedly connected to the drive shaft 11 of the engine 1 by welding, for example. One end of the first belt 213 is fitted over the first pulley 211, and the other end is fitted over the second pulley 212. When the engine 1 is operated, the drive shaft 11 drives the first pulley 211 to rotate, the first belt 213 rotates with the first pulley 211 and drives the second pulley 212 to rotate, and the second pulley 212 rotates and drives the first drive shaft 214 to rotate. The first transmission shaft 214 may also power the header of the harvester 9.

Specifically, when the first belt 213 is a quadruple V belt, the first belt 213 is a clutch belt, and the first belt 213 can realize two operation states of tension and separation. The first belt 213 can flexibly adjust the operating state of the belt drive mechanism 2.

As shown in fig. 1 to 5, the second transmission assembly 22 is disposed on the lower surface of the housing of the threshing cylinder 5, and the second transmission assembly 22 is disposed on the end of the threshing cylinder 5 away from the opening. The second transmission assembly 22 includes a third pulley 221, a fourth pulley 222, a second belt 223 and a second transmission shaft 224. A support plate 52 is constructed on the lower surface of the housing of the threshing cylinder 5. The second drive shaft 224 is mounted in the same manner as the first drive shaft 214. The supporting plates 52 are respectively arranged on both sides of the threshing cylinder 5 in the length direction, and the second transmission shaft 224 can be more stably rotated by symmetrically arranging the two supporting plates 52 on the threshing cylinder 5. After passing through the support plate 52 and the bearing seat 73, one end of the second transmission shaft 224 continues to pass through the hole of the fourth pulley 222, and the fourth pulley 222 is fixedly mounted to one end of the second transmission shaft 224 by a bolt. The third pulley 221 is provided at the other end of the first transmission shaft 214 in the same manner. One end of the second belt 223 is sleeved on the third belt pulley 221, and the other end is sleeved on the fourth belt pulley 222, when the first transmission shaft 214 rotates, the third belt pulley 221 rotates with the first transmission shaft 214, the second belt 223 rotates with the third belt pulley 221 and drives the fourth belt pulley 222 to rotate, and the fourth belt pulley 222 rotates and drives the second transmission shaft 224 to rotate.

Specifically, when the second belt 223 is an SPC belt, the second belt 223 can achieve a tension state, and can better transmit power to the belt transmission mechanism 2.

As shown in fig. 1 to 5, the third transmission assembly 23 includes a fifth pulley 231, a sixth pulley 232, a third belt 233 and a third transmission shaft 234. A fifth pulley 231 is provided on the second transmission shaft 224 at an end opposite to the fourth pulley 222, and the fifth pulley 231 is mounted on the second transmission shaft 224 in the same manner as the fourth pulley 222 is mounted on the second transmission shaft 224. A mounting plate 91 is configured on one side of the housing of the harvester 9. The third transmission shaft 234 penetrates the mounting plate 91, and two ends of the third transmission shaft 234 are respectively located at two sides of the mounting plate 91. A bearing holder 73 is fitted over one end of the third transmission shaft 234, and the bearing holder 73 is fixedly mounted to the mounting plate 91, and the third transmission shaft 234 is rotatably connected to the mounting plate 91. After passing through the mounting plate 91 and the bearing holder 73, one end of the third transmission shaft 234 continues to pass through the hole of the sixth pulley 232, and the sixth pulley 232 is fixedly mounted to one end of the third transmission shaft 234 by a bolt. One end of the third belt 233 is sleeved on the fifth belt wheel 231, and the other end is sleeved on the sixth belt wheel 232, when the second transmission shaft 224 rotates, the fifth belt wheel 231 rotates along with the second transmission shaft 224, the third belt 233 rotates along with the fifth belt wheel 231 and drives the sixth belt wheel 232 to rotate, and the sixth belt wheel 232 rotates and drives the third transmission shaft 234 to rotate. The other end of the third transmission shaft 234 is fixedly connected with one end of the universal joint 3 through a flange plate. The reversing box 4 comprises an input shaft and an output shaft, wherein the input shaft is perpendicular to the output shaft, namely the axis of the input shaft is perpendicular to the axis of the output shaft. For example, the reversing box 4 may be a 90 ° speed reducer manufactured by a manufacturer under the trade name T. The input shaft 41 of the reversing box 4 at the other end of the universal joint 3 is fixedly connected through a flange plate. The output shaft 42 of the reversing box 4 is connected with the rotating shaft 51 of the threshing cylinder 5.

Specifically, when the third belt 233 is a half-width variable-speed toothed V-belt, the third belt 233 can transmit power to the belt transmission mechanism 2 more stably.

The belt transmission mechanism 2 provides power for the rotating shaft of the threshing cylinder through the three-level belt transmission structure, when the harvester receives foreign matters such as stones and the like, and the harvester is in an abnormal harvesting state, the power transmission system of the threshing cylinder can slip through a short belt to offset abnormal power, and the threshing cylinder does not influence continuous harvesting.

As shown in fig. 3, 4 and 6, the threshing cylinder power transmission system further comprises a row chain transmission mechanism 6. The row chain transmission mechanism 6 is arranged between the output shaft 42 of the reversing box 4 and the rotating shaft 51 of the threshing cylinder 5, and the row chain transmission mechanism can transmit the power of the output shaft 42 of the reversing box 4 to the rotating shaft 51 of the threshing cylinder 5, so that the threshing cylinder 5 can work conveniently.

The row chain transmission mechanism 6 includes a first sprocket 61, a second sprocket 62 and a double row chain 63. The first sprocket 61 is fixedly connected to the output shaft 42 of the reversing box 4, for example, the first sprocket 61 is welded to the output shaft 42 of the reversing box 4. The second sprocket 62 is fixedly connected to the rotating shaft 51 of the threshing cylinder 5, for example, the second sprocket 62 is welded to the rotating shaft 51 of the threshing cylinder 5. The output shaft 42 of the reversing box 4 is not in contact with the rotating shaft 51 of the threshing cylinder 5. One end of the double-row chain 63 is sleeved on the first chain wheel 61, and the other end of the double-row chain 63 is sleeved on the second chain wheel 62. The double-row chain 63 can ensure that the rotation speeds of the first chain wheel 61 and the second chain wheel 62 are the same.

When power is transmitted from the reversing box 4 to the rotating shaft 51 of the threshing cylinder, the double-row chain 63 allows the rotating shaft 51 of the threshing cylinder and the output shaft 42 of the reversing box 4 to have slight non-concentricity, so that the assembly precision requirement of the power transmission system is reduced, and the risk of the power transmission system breaking down is reduced.

When the harvester was when foreign matter such as income stone at the harvesting process, threshing cylinder's moment of torsion overload in the twinkling of an eye, the belt skidded and can't ensure the harvester normal during operation, in order to reduce foreign matter such as stone to threshing cylinder's damage, because the rigid connection of duplex chain 63 self, duplex chain 63 can preferentially burst apart the damage, protects threshing cylinder 5's power transmission system like this, prevents further damage power transmission system.

Optionally, as shown in fig. 1 and 2, the chain arrangement driving mechanism 6 further includes a clip 64. The clamp 64 is installed outside the double-row chain 63, and dust generated in harvesting is prevented from entering the double-row chain 63, and meanwhile, the clamp 64 can also prevent the double-row chain 63 from collapsing to influence other parts.

As shown in fig. 1, 4 and 5, the threshing cylinder drivetrain further includes a first link 71. The first link 71 is disposed between the first transmission shaft 214 and the second transmission shaft 224. Bearing blocks 73 are mounted between the first link 71 and the first transmission shaft 214 and between the first link 71 and the second transmission shaft 224. As shown in fig. 1, an inner race of one bearing housing 73 is connected to one end of the first transmission shaft 214, and the bearing housing 73 is located on the right side of the third pulley 221. One end of the first link 71 is mounted on the housing of the bearing housing 73. The inner race of the other bearing housing 73 is connected to one end of the second transmission shaft 224, and the bearing housing 73 is located on the right side of the fourth pulley 222. The other end of the first link 71 is mounted to the housing of the bearing bracket 73. The first link can provide auxiliary support for the first transmission shaft 214 and the second transmission shaft 224, avoiding the risk of the first transmission shaft 214 and the second transmission shaft 224 breaking when the torque of the threshing cylinder is overloaded.

As shown in fig. 1 to 4, the threshing cylinder drivetrain further comprises a second connecting rod 72. The second link 72 is disposed between the second transmission shaft 224 and the third transmission shaft 234. Bearing blocks 73 are mounted between the second link 72 and the second transmission shaft 224 and between the second link 72 and the third transmission shaft 234. As shown in fig. 1, an inner race of one bearing housing 73 is connected to the other end of the second driving gear, and the bearing housing 73 is located at the left side of the fifth pulley 231. One end of the second link 72 is mounted to the housing of the bearing housing 73. The inner race of the other bearing housing 73 is connected to one end of the third transmission shaft 234, and the bearing housing 73 is located on the left side of the sixth pulley 232. The other end of the second link 72 is mounted to the housing of the bearing bracket 73. The second connecting rod can provide auxiliary support for the second transmission shaft 224 and the third transmission shaft 234, so that the risk of breakage of the second transmission shaft 224 and the third transmission shaft 234 when the torque of the threshing cylinder is overloaded is avoided.

As shown in fig. 1, 2, 7-9, the threshing cylinder drivetrain further includes a calibration mechanism 8. The aligning mechanism 8 is arranged on the shell of the harvester 9, and the aligning mechanism 8 is connected with the third transmission shaft 234.

The alignment mechanism 8 includes a positioning plate 81 and an adjusting rod 82. Fixing holes 811 are formed in the positioning plate 81, and the bearing holder 73 is mounted in the fixing holes 811, and the housing of the bearing holder 73 is coupled to the inner wall of the fixing holes 811. Bolts penetrate through one ends of the positioning plate 81 and the adjusting rod 82, and the positioning plate 81 and the adjusting rod 82 are fixedly connected. The other end of the adjusting rod 82 is welded with a threaded rod 822, and two positioning nuts 823 are arranged on the threaded rod 822. The mounting plate 91 is configured with a fixing plate 92, the threaded rod 822 of the adjusting rod 82 penetrates the fixing plate 92, and two positioning nuts 823 are respectively located on two sides of the fixing plate 92. The end of the third transmission shaft 234 far away from the universal joint 3 passes through the rotation hole 911 on the mounting plate 91 and the hole on the sixth pulley 232 and enters the bearing seat 73, and the end of the third transmission shaft 234 far away from the universal joint 3 is connected with the inner ring of the bearing seat 73. By adjusting the positions of the two positioning nuts 823, a maintenance worker can complete the positioning and calibration of the third transmission shaft 234, and the concentricity of the third transmission shaft 234 and the input shaft 41 of the reversing box 4 can be ensured. For example, the fixing hole 811 is disposed at the center of the positioning plate 81, so that the third transmission shaft 234 is more uniformly stressed and more stably rotated.

As shown in fig. 1, the disclosed embodiment provides a harvester 9, which harvester 9 comprises a threshing cylinder drivetrain as in the above described embodiment. When the harvester receives foreign matters such as stones in the harvesting process, the torque of the power transmission system of the threshing cylinder is increased, the axis of the transmission shaft of the belt transmission mechanism and the axis of the transmission shaft of the reversing box slightly deviate, the universal joint can enable the belt transmission mechanism and the reversing box to still normally work in a deviating state, the assembly precision requirement of the power transmission system is reduced, the risk of the power transmission system breaking down is reduced, and the guarantee is provided for the normal work of the harvester.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a threshing cylinder power transmission system, includes belt drive mechanism (2), universal joint (3), switching-over case (4), its characterized in that, the one end of belt drive mechanism (2) with the one end of universal joint (3) is connected, the other end of universal joint (3) with input shaft (41) of switching-over case (4) are connected, switching-over case (4) have output shaft (42) of being connected with pivot (51) of threshing cylinder (5), the axis of input shaft (41) with the axis of output shaft (42) is perpendicular.

2. The threshing cylinder drivetrain of claim 1, further comprising:

and the row chain transmission mechanism (6) is arranged between the output shaft (42) and the rotating shaft (51).

3. The threshing cylinder drivetrain according to claim 2, wherein,

the row chain transmission mechanism (6) comprises:

a first sprocket (61) provided on the output shaft (42);

a second sprocket (62) provided on the rotating shaft (51);

and one end of the double-row chain (63) is sleeved on the first chain wheel (61), and the other end of the double-row chain is sleeved on the second chain wheel (62).

4. The threshing cylinder drivetrain according to claim 3, wherein,

the first sprocket (61) and the second sprocket (62) are coaxially disposed.

5. Threshing cylinder drivetrain according to any one of claims 1 to 4, characterized in that the belt drive (2) comprises:

a first transmission assembly (21) including a first pulley (211), a second pulley (212), a first belt (213), and a first transmission shaft (214); the first belt wheel (211) is arranged on a driving shaft (11) of the driver, the second belt wheel (212) is arranged at one end of the first driving shaft (214), and the first belt wheel (211) is connected with the second belt wheel (212) through a first belt (213);

a second transmission assembly (22) comprising a third pulley (221), a fourth pulley (222), a second belt (223) and a second transmission shaft (224); the third belt wheel (221) is arranged at the other end of the first transmission shaft (214), the fourth belt wheel (222) is arranged at one end of the second transmission shaft (224), and the third belt wheel (221) and the fourth belt wheel (222) are connected through a second belt (223);

a third transmission assembly (23) comprising a fifth belt wheel (231), a sixth belt wheel (232), a third belt (233) and a third transmission shaft (234); the fifth belt pulley (231) is arranged at the other end of the second transmission shaft (224), the sixth belt pulley (232) is arranged at one end of the third transmission shaft (234), the third transmission shaft (234) is connected with the universal joint (3), and the fifth belt pulley (231) and the sixth belt pulley (232) are connected through the third belt (233).

6. The threshing cylinder drivetrain of claim 5, further comprising:

a first link (71) disposed between the first drive shaft (214) and the second drive shaft (224).

7. The threshing cylinder drivetrain of claim 6, further comprising:

a second link (72) disposed between the second drive shaft (224) and the third drive shaft (234).

8. The threshing cylinder drivetrain of claim 5, further comprising:

a calibration mechanism (8) arranged at the housing of the threshing cylinder or harvester (9);

the alignment mechanism (8) is connected to the third drive shaft (234).

9. Threshing cylinder drivetrain according to claim 8, characterized in that the calibration mechanism (8) comprises:

a positioning plate (81) connected with one end of the third transmission shaft (234) far away from the universal joint (3);

and the adjusting rod (82) is arranged on the shell of the harvester (9) and is connected to the positioning plate (81).

10. A harvester, comprising:

the threshing cylinder drivetrain of any one of claims 1 to 9.

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