JPH04112118U - combine gearing - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the ease of inspection and maintenance of the motor and reaping section drive belt of the hydraulic continuously variable transmission. [Configuration] Traveling mission case 3 on the opposite side of the driving section 9
2, a motor 33 of a hydraulic continuously variable transmission and a reaping section drive pulley 58 are installed adjacently in the front and rear direction.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a combine harvester transmission device.

0002

[Conventional technology]

Conventionally, the traveling transmission device of a combine equipped with a hydraulic continuously variable transmission (HST) and For example, Japanese Unexamined Patent Publication No. 18727/1983 is known.

0003

[Problem that the idea aims to solve]

The known traveling transmission device has a hydraulic type mounted on the upper part of the traveling transmission case on the driver side. The pump and motor of the continuously variable transmission were installed in an overhanging manner, causing damage to adjacent equipment. It is necessary to place the various equipment in the transfer section away from the pump and motor so that they do not interfere with each other. Therefore, there was a problem in that the width of the aircraft inevitably became larger. We also maintain a hydraulic continuously variable transmission. When removing it for maintenance, it is difficult to remove it from the driving section side, which worsens work efficiency. It was set. Furthermore, there is a reaping section drive pulley that transmits the power changed by the hydraulic continuously variable transmission to the reaping section. Lee is also located below the above-mentioned hydraulic continuously variable transmission in the driving transmission case on the driver's side. As the equipment was located overhanging the area, it also interfered with equipment in the adjacent operating section. In some cases, the position of the reaping unit drive pulley is low, and muddy water or dirt adheres to the belt, causing it to slip. This tends to cause problems such as the reaping section not being able to be driven.

0004

[Means to solve the problem]

The purpose of this invention is to solve the above problems, and its technical means are: A traveling mission case is installed below the front of the fuselage frame, and the driving section is placed on the side. In a combine harvester that is placed in a In this case, the motor of the hydraulic continuously variable transmission and the reaping section drive pulley are placed close to each other in the front and rear direction. The output shaft of the motor and the reaping part drive pulley each have a running mission. It is connected to one end of the input shaft and the drive shaft, which is pivotally supported in the case. The gears installed on the drive shaft and the gears installed on the output shaft of the traveling transmission system, which is pivotally supported below, are It is characterized by being interlocked with each other.

[0005]

[Effect]

This invention features a hydraulic continuously variable transmission mounted on the top of the traveling transmission case on the opposite side of the driving section. The motor and the reaping part drive pulley are installed adjacent to each other in the front and back direction. Therefore, hydraulic The power that is continuously changed by the continuously variable transmission is transferred to gears in the transmission case. It is transmitted to the traveling device by the device, and is also transmitted to the reaping section by the reaping section drive pulley. reached and drives each part. Also, when removing the motor of a hydraulic continuously variable transmission for maintenance, Alternatively, when replacing the belt of the reaping section drive pulley, use the traveling transmission case. The motor of the hydraulic continuously variable transmission installed on the opposite side of the drive section, and the reaping section. The drive belt can be easily maintained without interfering with the various devices in the driving section. can. In addition, the reaping section drive pulley is attached to the end of the drive shaft at the top of the traveling transmission case. This prevents muddy water, muddy soil, etc. from adhering even when driving through soft fields when working on the reaping section. Never. Furthermore, the gear on the input shaft connected to the output shaft of the motor and the gear on the drive shaft of the reaping section are The reaping section drive pulley is driven by the motor of the hydraulic continuously variable transmission through direct meshing. In this case, large-diameter gears would be meshed, but this invention allows the gears on the input shaft and the drive shaft to mesh. The gears are meshed with each other via the gears on the output shaft which is supported below, so Install the motor of the hydraulic continuously variable transmission device and the reaping part drive pulley in close proximity. It is possible to downsize the traveling transmission case.

[0006]

【Example】

An embodiment of the present invention will be described based on the drawings. As shown in FIGS. 1 and 2, the combine 1 has left and right crawler traveling devices 2, 2. A threshing device 5 having a handling barrel 4, etc. is mounted on the left side of the fuselage frame 3 having a At the front right side of the grain machine 5 is an engine 6 supported by vibration isolators 6a, 6a. A radiator 7 having a fan 7a is mounted behind the gin 6. and, A support frame 8a is fixed to the machine frame 3 in front of the threshing device 5, and a weed pulling device is installed. The reaping section 8, which is equipped with a cutting blade, a cutting blade, a raking conveyance device, a handling depth conveyance device, etc., is connected to a hydraulic cylinder 8b. It is supported so that it can be raised and lowered freely. Also, on the right side of the reaping section 8, there is a driver's seat 9a, etc. A cabin 10 is installed, which is integrally equipped with an operating section 9.

[0007] Further, as shown in FIGS. 1, 2, and 3, the above-mentioned reaping section 8 is located below the threshing device 5. The counter case 11 is mounted in the space between the support frames 8a with bolts. It is detachably fixed to the body frame 3. The counter case 11 The power shaft 12 is the output shaft 6b of the engine 6 and a transmission shaft having universal joints 13, 13 on both sides. They are connected via 14. Furthermore, the counter case 11 is equipped with a hydraulic continuously variable transmission. The pump 15 and the working hydraulic pump 16 are removably fixed, and the input shaft The power transmitted to the input shaft 12 is transmitted from the gear 12a fixed to the input shaft 12 to the outer diameter of the hollow shaft 17. The speed is increased and transmitted to the gear 18 fixed to the hollow shaft 17. The pump input shaft 15a of the hydraulic continuously variable transmission and the working The input shafts 16a of the hydraulic pumps 16 are fitted to drive each of them. The gear 19 on the other side fixed on the hollow shaft 17 is the gear 2 fixed on the transmission shaft 20. 0a, the transmission shaft 20 extends toward the engine 6 side, and its terminal end A threshing drive pulley 21 is fixed to the part. Further, the transmission shaft 20 is attached to the holding cylinder 22. One end of the holding cylinder 22 is connected to the counter case 11, and the other end is connected to the machine. It is fixed to the body frame 3 via a bracket 3a. Furthermore, the threshing drive pulley 21 drives a pulley 23 located above with a belt 24. pulley 23 The transmission shaft 25 drives a bevel gear (not shown) provided in the gear box 5c of the threshing device 5. and finally rotationally drives the handling cylinder shaft 5a. In addition, 24a is an illustration provided in the operating section 9. The tension is linked to the threshing clutch lever that does not operate, and intermittents the transmission of power to the threshing device 5. It is a clutch pulley.

[0008] Further, a hydraulic oil tank is installed on the fuselage frame 3 in front of the threshing device 5 and approximately at the center of the fuselage. 26 have been installed. The hydraulic oil in this tank is filtered through a low pressure hose 27. 8 (which is integrally fixed to the pump 15 of the hydraulic continuously variable transmission), Supplied to the charge pump of the pressure-type continuously variable transmission. Furthermore, the hydraulic continuously variable transmission itself Although a detailed explanation will be omitted, this is a component that changes the angle of the pump swash plate using a hydraulic servo mechanism. The control arm 29 is linked to a rod 9c pivotally connected to the travel gear shift lever 9b. Therefore, the travel gear shift lever 9b cannot be operated from the neutral position N to the forward side F or the reverse side R. Accordingly, the direction of the pressure oil discharged from the high pressure hoses 30 and 31 connected to the pump 15 , and the discharge amount. In addition, a traveling mission supported by the fuselage frame 3 is installed at the lower front of the aircraft, approximately at the center of the fuselage. A case 32 is provided, and a side of the driving mission case 32 opposite to the driving section 9 is provided. On the upper left side is the motor of the hydraulic continuously variable transmission that connects the other ends of the high pressure hoses 30 and 31. The motor 33 is removably fixed with bolts. The motor 33 is connected to the pump 15. It stops or rotates in forward and reverse directions when it receives pressure oil. Furthermore, the charge pump pumps 15 and 15. The hydraulic oil that lubricates and cools the engine and motor 33 is connected to an oil tank (not shown) through a hose 34. The oil is returned to the hydraulic oil tank 26 via the oil cooler.

[0009] Next, the internal structure of the traveling mission case 32 will be explained. , as shown in FIG. The motor 33 is removably fixed, and the motor output shaft 33a is connected to the driving mission. It is connected to an input shaft 36 via a coupling 35 inside the case 32 . The coupling 35 is integrally welded to the input shaft 36, and the motor 33 is By removing bolts (not shown), the motor output shaft 33a and the coupling 35 can be connected to each other. It can be removed from the traveling transmission case 32 by releasing the engagement with the transmission case 32. In addition, the input shaft 36 is slidable and is always connected to the input gear 38 side by a spring 37. A biased dog gear 39 is spline fitted. Here, dog gear 39 meshes with the internal teeth 38a provided on one side of the input gear 38, but resists the spring 37. By moving the dog gear 39 with the shifter 40, the meshing can be broken. In that case, the power transmission to the following gear transmission is cut off.

0010 Hereinafter, the gear transmission device constituting the auxiliary transmission will be explained. meshes with the large-diameter tooth 42a of the gear 42 that is loosely fitted on the output shaft 41 of the traveling transmission system, and the gear 4 The second small diameter tooth 42b meshes with a gear 44 fixed to a drive shaft 43 that drives the reaping section 8. drive shaft 43. Further, a speed change gear 45 is slidably mounted on the drive shaft 43. They are line fitted, and a low speed gear 46 and a medium speed gear 47 are loosely fitted on the left and right sides. There is. Therefore, the transmission gear 45 is linked to the sub-shift lever 9f provided in the driving section 9. If the internal teeth 45a and the low speed gear 46 are moved by the lid and meshed with each other, the teeth The output shaft 41 of the travel transmission system is driven at low speed via the wheel 48 . In addition, the gear change gear 45 and meshes the other internal tooth 45b with the medium speed gear 47, the gear 49 The output shaft 41 of the travel transmission system can be driven at a medium speed through the . And the output of the traveling transmission system When driving the shaft 41 at high speed, the high speed tooth 45c of the speed change gear 45 is used as the output of the travel transmission system. Gears can be changed by meshing with a gear 50 fixed to the shaft 41.

[0011] The power that has been appropriately changed in speed by the above-mentioned gear transmission is transmitted through the teeth of the output shaft 41 of the traveling transmission system. The transmission is transmitted by the wheel 50 to the shaft 51 on the lower transmission side via the speed change driven gear 52, and further As with the conventional device, there is a center gear installed on the steering shaft, a side clutch gear, and a left The transmission is transmitted to the right axle 53, 54, and is rotated by sprockets 55, 56 provided on the axle. The roller traveling devices 2, 2 are driven. Further, at the left end of the drive shaft 43 that pivotally supports the speed change gears 44, 45, 46, 47, , a reaping drive pulley 58 incorporating a one-way clutch 57 is provided, and the pulley -58, only the forward driving force of the hydraulic continuously variable transmission is transmitted through the belt 59 and tension clutch. Transmitted to input pulley 61 of reaping section 8 located above via latch pulley 60 The entire reaping section 8 is driven.

0012 In the above configuration, in order to perform reaping and harvesting work with the combine harvester 1, the engine 6 is When starting, turn on the reaping clutch lever and threshing clutch lever (not shown). As a result, the reaping section 8 and the threshing device 5 are driven. Next, the operator The bar 9b is tilted to the forward F side to start traveling. Then, at the time of conversion etc. Move the travel gear shift lever 9b to the reverse R side, and use the travel gear shift lever 9b to move as appropriate. Work at an appropriate driving speed by increasing or decreasing the speed. In this case, the power of the engine 6 is transmitted to the counter case 11 through the transmission shaft 14. is transmitted to the pump input shaft 15a of the hydraulic continuously variable transmission, and the pump 15 changes the running speed. The motor provided in the traveling transmission case 32 moves at the speed set by the speed lever 9b. drive the motor 33. And the dog clutch inside the traveling transmission case 32 is Since the signal is connected, the signal is transmitted to the gear transmission on the downstream side. The gear transmission is The speed change gear 45 is set to low speed or medium speed by the auxiliary speed change lever 9f provided near the seat changer 9a. Since the power has been shifted to the position beforehand, the power via the gear transmission is transferred to the axles 53, 54. , the crawler traveling devices 2, 2 rotate, and the combine harvester 1 travels. In addition, power is transmitted to the reaping section 8 by transmitting power from the engine 6 to a hydraulic continuously variable transmission 15. 33, the reaping section 8 is driven at an appropriate speed in conjunction with the vehicle speed. be done. In this case, the power of the motor 33 of the hydraulic continuously variable transmission is connected to the input shaft 36. The signal is transmitted to the gear input gear 38 and the gear 42 loosely fitted to the output shaft 41 of the traveling transmission system. , which is further transmitted to the drive shaft 43 via the gear 44. When the drive shaft 43 is driven, the left end The reaping section drive pulley 58 provided at Power pulley 61 is driven. Here, the motor 33 of the hydraulic continuously variable transmission and the reaping section drive pulley 58 are both It is installed adjacent to the upper part of the driving transmission case 32 on the opposite side from the driving part 9 in the front and back direction. Therefore, the driving unit 9 should be placed as close as possible to the traveling mission case 32. This allows for a more compact design with a smaller body width. Furthermore, if the motor 33 of the hydraulic continuously variable transmission is damaged or the reaping unit drive When replacing the belt 59 of the dynamic pulley 58, first attach the reaping section 8 to the machine frame. The work is carried out separately from the support frame 8a of No. 3. In this state, there is no hydraulic The motor 33 of the gear transmission and the reaping part drive pulley 58 are completely exposed to the side. Therefore, if these are installed on the driving section 9 side, they may not interfere with the various devices of the driving section 9. Therefore, I had no choice but to remove the traveling mission case 32 from the aircraft frame 3 and check the hydraulic pressure. There is no need to maintain the motor 33 of the continuously variable transmission, and the driving mission can be improved. Easy maintenance by removing only the motor 33 of the hydraulic continuously variable transmission from the case 32. Can perform maintenance. Similarly, the belt 59 can be easily replaced. In addition, the reaping section drive pulley 58 is close to the motor 33 of the hydraulic continuously variable transmission. The reaping section drive pulley 58 Also, the belt 59 can be placed higher than before. Therefore, the reaping part drive pulley 5 It is possible to avoid as much as possible the occurrence of slippage caused by muddy water or muddy soil adhering to the belt 8 or the belt 59. It is something. Furthermore, the present invention is suitable for the motor of a hydraulic continuously variable transmission which requires a relatively large space. 33 and the reaping part drive pulley 58 are mounted on the upper part of the traveling transmission case 32. Because they are installed adjacent to each other in the direction, both are placed inside the traveling transmission case 32. Directly driven by gears provided on the input shaft 36 and the drive shaft 43 of the reaping section 8 In this case, a gear with a large diameter will be used, and the distance between its axes will be large. Therefore driving The transmission case 32 cannot be constructed compactly in the front-rear direction. deer However, the present invention uses the motor 33 of the hydraulic continuously variable transmission and the reaping section drive pulley 5. 8, the gears 38 and 44 of the input shaft 36 and the drive shaft 43, respectively, are A configuration is adopted in which meshing occurs via a gear 42 provided on an output shaft 41 of a supported traveling transmission system. By using only relatively small diameter gears, the two can be interlocked and connected. This allows the traveling transmission case 32 to be constructed compactly in the front and rear directions. It is. Moreover, the drive shaft 43 that drives the reaping section 8 is connected to gears 45, 46, 47. etc. at the same time, the output shaft 41 of the traveling transmission system, which is pivotally supported downward. A gear-type auxiliary transmission can be configured with the gears 48, 49, and 50, and the minimum These devices are arranged in the traveling transmission case 32 in a compact manner due to the number of axes. It is something that can be done.

[0013]

[Effect of the idea]

As explained above, this invention has a traveling mission case attached to the lower front of the aircraft frame. In a combine harvester with a driving section located on the side of the The motor of the hydraulic continuously variable transmission and the reaping section are located on the top of the side traveling transmission case. A drive pulley is installed adjacently in the front and back direction, and the output shaft of the motor and the reaping part drive The pulleys are connected to the input shaft and drive shaft, respectively, which are supported inside the traveling transmission case. In addition to being connected to one end, the gears provided on the input shaft and drive shaft are Hydraulic type because it engages through gears installed on the output shaft of the transmission system Place the motor of the continuously variable transmission and the reaping section drive pulley on the side opposite to the driving section. It can be installed on the top of the transmission case, allowing the driving part to be placed in the driving transmission case as much as possible. It is possible to arrange them in close proximity. Also, when removing the motor of a hydraulic continuously variable transmission for maintenance, Alternatively, when replacing the belt of the reaping section drive pulley, use the traveling transmission case. The motor of the hydraulic continuously variable transmission and the reaping section drive installed on the opposite side of the drive section from the drive section. The dynamic belt can be easily maintained without being interfered with by the various devices in the driving section 9. can. Furthermore, the reaping section drive pulley is located close to the motor of the hydraulic continuously variable transmission. Since it is installed on the top of the traveling transmission case, the reaping section drive pulley and belt can be placed higher than before, which prevents muddy water from reaching the reaping section drive pulley and belt. Reaping work can be carried out smoothly by avoiding mud adhesion as much as possible. Moreover, this invention is suitable for the motor and reaping part drive pulley of the hydraulic continuously variable transmission. On the output shaft of the traveling transmission system, which supports the connected input shaft and drive shaft gears downward. Since the gears are meshed and driven through gears installed in the The two can be interlocked and connected using a The rear direction can be configured compactly.

[Brief explanation of drawings]

FIG. 1 is a front view showing the main parts of a traveling transmission device.

FIG. 2 is a left side view showing a part of the combine harvester.

FIG. 3 is a plan cross-sectional view showing the counter case and the motor section of the hydraulic continuously variable transmission device.

FIG. 4 is a sectional view showing a part of the motor and traveling transmission case of the hydraulic continuously variable transmission.

FIG. 5 is a sectional view showing a part of the traveling transmission case.

FIG. 6 is a left side view of the traveling transmission case.

[Explanation of symbols]

1 combine harvester 3 Airframe frame 9 Operation Department 32 Driving mission case 33 Hydraulic continuously variable transmission motor 33a Motor output shaft 36 Input shaft 38 Input gear 41 Travel system output shaft 43 Drive shaft 58 Reaping section drive pulley

──────────────────────────────────────────────── ─── Continued from front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location B60K 17/28 C 8710-3D

Claims (2)

[Scope of utility model registration request] Claim 1: A combine harvester in which a traveling mission case is provided under the front of the machine frame, and a driving section is arranged on the side thereof, in which a hydraulic stepless drive unit is installed in the upper part of the traveling mission case on the opposite side of the driving section. A transmission device for a combine harvester, characterized in that a motor of a transmission device and a reaping part drive pulley are installed adjacently in the front and rear direction. [Claim 2] In a combine in which a traveling mission case is provided under the front of the machine frame and a driving section is arranged on the side thereof, the top of the traveling mission case on the side opposite to the driving section is equipped with a hydraulic stepless The motor of the transmission device and the reaping section drive pulley are installed close to each other in the front and rear direction, and the output shaft of the motor and the reaping section drive pulley are connected to one end of the input shaft and the drive shaft, respectively, which are pivotally supported in the traveling transmission case. A transmission device for a combine harvester, characterized in that the gears provided on the input shaft and the drive shaft are connected to each other and are meshed via a gear provided on the output shaft of a traveling transmission system pivotally supported below.