CN-117814019-B - Silage machine feeding gearbox

CN117814019BCN 117814019 BCN117814019 BCN 117814019BCN-117814019-B

Abstract

The invention provides a silage machine feeding gearbox which comprises an input shaft, a first intermediate shaft, a first output shaft, a second intermediate shaft and a safety clutch, wherein the input shaft is connected with the first intermediate shaft through gear transmission, a first speed change gear set is connected to the first intermediate shaft, a multi-gear is movably sleeved on the first output shaft, a second speed change gear set is movably sleeved on the second intermediate shaft, the first speed change gear set and the second speed change gear set can be connected with the multi-gear transmission, the input end of the safety clutch is connected with the second speed change gear set, the output end of the safety clutch is connected with the second intermediate shaft, a first transmission gear is further connected to the second intermediate shaft, a first output gear is further connected to the first output shaft, and the first output gear is meshed with the first transmission gear. By adopting the invention, when the silage machine has the condition of grass blockage and overload, the safety clutch is disconnected, the gear is prevented from being damaged, and the multi-gear variable-speed transmission is realized.

Inventors

LU GUANGWEI
TIAN WEIDONG
GAO XIANGFENG
LIN BENZHU
Guan Tianguo
Sun Zonghu
WANG XIUZHI
QI WENZHENG
ZHANG WANQING
FENG XIANGLIANG
DONG YUNPENG
WANG WEI
WANG XIDONG
JIA QIANG
ZHOU WEI

Assignees

山东潍柴雷沃传动有限公司

Dates

Publication Date: 20260512
Application Date: 20240104

Claims (9)

1. The silage machine feeding gearbox is characterized by comprising an input shaft (1), a middle first shaft (2), a first output shaft (3), a middle second shaft (4) and a safety clutch (5), wherein the input shaft (1) is connected with the middle first shaft (2) through gear transmission, the middle first shaft (2) is connected with a first speed change gear set, the first output shaft (3) is movably sleeved with a multi-gear (6), the middle second shaft (4) is movably sleeved with a second speed change gear set, the first speed change gear set and the second speed change gear set can be in transmission connection with the multi-gear (6), the input end of the safety clutch (5) is connected with the second speed change gear set, the output end of the safety clutch (5) is connected with the middle second shaft (4), the middle second shaft (4) is also connected with a first transmission gear (7), the first output shaft (3) is also connected with a first output gear (8), and the first output gear (8) is meshed with the first transmission gear (7); The first speed change gear set comprises a high-gear (15) and a low-gear (16), the high-gear (15) and the low-gear (16) are connected with the middle shaft (2), and the high-gear (15) and the low-gear (16) can synchronously slide to one of the following states along the axial direction of the middle shaft (2): The state a, the high gear (15) is meshed with the multi-gear (6), and the low gear (16) is separated from the multi-gear (6); The state b, the low gear (16) is meshed with the multi-gear (6), and the high gear (15) is separated from the multi-gear (6); and in the state c, the high-gear (15) and the low-gear (16) are separated from the multi-gear (6).
2. Silage machine feeding gearbox according to claim 1, characterized in that it further comprises a second output shaft (9) and a second transfer gear (10), the second output shaft (9) being in geared connection with the second transfer gear (10), the second transfer gear (10) being in geared connection with the first transfer gear (7).
3. The silage machine feeding gearbox according to claim 2, further comprising an input reversing shaft (11), wherein the input reversing shaft (11) is connected with a reversing driving wheel (12), and the reversing driving wheel (12) can be meshed with or separated from the second transfer gear (10) when moving along the axial direction of the input reversing shaft (11).
4. The silage machine feeding gearbox according to claim 2, further comprising a middle triaxial (13), wherein the transmission gears are arranged at two ends of the middle triaxial (13), the transmission gear at one end of the middle triaxial (13) is meshed with the second transmission gear (10), and the transmission gear at the other end of the middle triaxial (13) is meshed with the first transmission gear (7).
5. The silage machine feeding gearbox according to claim 2, characterized in that the second output shaft (9) is also connected with a second output gear (14), and the second output gear (14) is in transmission connection with the second transfer gear (10) through an idler gear.
6. The silage machine feeding gearbox according to claim 1, wherein the multi-gear (6) is a triple gear, the second speed change gear set comprises a gear (17), a double gear (18) and an outer gear sleeve (19), the gear (17) and the outer gear sleeve (19) are movably sleeved on the middle two shafts (4), the outer gear sleeve (19) is connected with the input end of the safety clutch (5), the gear (17) is meshed with the small end of the triple gear, the double gear (18) is connected with the outer gear sleeve (19), and the double gear (18) can axially slide along the outer gear sleeve (19) to one of the following states: the state d, the inner part of the duplicate gear (18) is meshed with the hub part of the first gear (17), and the duplicate gear (18) is separated from the duplicate gear; The large end of the duplicate gear (18) is meshed with the middle end of the triple gear, the small end of the duplicate gear (18) is separated from the triple gear, and the duplicate gear (18) is separated from the first-stop gear (17); the small end of the duplicate gear (18) is meshed with the large end of the triple gear, the large end of the duplicate gear (18) is separated from the triple gear, and the duplicate gear (18) is separated from the first-stop gear (17); And in the state g, the duplicate gear (18) is separated from the triple gear and the one-stop gear (17).
7. The silage machine feeding gearbox of claim 6, wherein the small end of the triple gear is further connected with a low-speed gear (20), the outer diameter of the low-speed gear (20) is larger than the outer diameter of the large end of the triple gear, and wherein: the state a is that the high gear (15) is meshed with the big end of the triple gear; the state b is that the low gear (16) is meshed with a low-speed gear (20) of the triple gear; The state c is specifically that the high gear (15) and the low gear (16) are separated from the multi-connected gear (6).
8. The silage machine feeding gearbox according to claim 1, wherein a third transfer gear (21) is connected to the intermediate shaft (2), an input gear (22) is connected to the input shaft (1), and the input gear (22) is in transmission connection with the third transfer gear (21) through an idler gear.
9. Silage machine feeding gearbox according to claim 1, characterized in that it further comprises a header output shaft (23), the header output shaft (23) being coupled to the input shaft (1) by means of a bevel gear transmission.

Description

Silage machine feeding gearbox Technical Field The invention relates to the technical field of silage harvesting machinery, in particular to a silage machine feeding gearbox. Background The feeding module of the silage harvester is usually directly driven by a four-gear gearbox or a motor. At present, the market has various requirements on the length of silage straws, and the feeding speed of the straw feeding module of the silage harvesting machine is changed by changing the rotating speed, so that the length of cut feed straws is controlled. When the four-gear gearbox is adopted, the rotation speed change of the feeding module depends on the change gear, and the four gears can not fully meet various requirements of the market on the length of silage straws. When the motor is directly driven, the length of the straw cannot be guaranteed to be consistent for a long time, the stability is poor, and the production and maintenance costs are high. In addition, when the feeding module of silage harvester works, because of reasons such as crop density change, stay, the condition of grass blocking or overload appears often, forces to continue to work at this moment and easily leads to the drive gear of gearbox to damage, and the user can't continue to carry out harvesting operation, seriously influences the harvesting progress. Disclosure of Invention The invention aims to solve the technical problems of increasing the length of silage straws produced by a silage machine and avoiding the damage of a transmission gear caused by grass blockage or overload. The technical scheme for solving the technical problems is as follows: The invention provides a silage machine feeding gearbox which comprises an input shaft, a first intermediate shaft, a first output shaft, a second intermediate shaft and a safety clutch, wherein the input shaft is connected with the first intermediate shaft through gear transmission, a first speed change gear set is connected to the first intermediate shaft, a multi-connected gear is movably sleeved on the first output shaft, a second speed change gear set is movably sleeved on the second intermediate shaft, the first speed change gear set and the second speed change gear set can be in transmission connection with the multi-connected gear set, the input end of the safety clutch is connected with the second speed change gear set, the output end of the safety clutch is connected with the second intermediate shaft, a first transmission gear is further connected to the second intermediate shaft, a first output gear is further connected to the first output shaft, and the first output gear is meshed with the first transmission gear. The beneficial effects of the invention are as follows: when the feeding module is in a grass blockage and overload condition, the safety clutch is disconnected, the power transmission from the second speed change gear set to the middle two shafts is cut off, the second speed change gear set idles without load, the damage of gears caused by grass blockage and overload is avoided, the service life is long, the reliability is good, in addition, the first speed change transmission can be realized between the first speed change gear set and the multi-gear, the second speed change transmission can be realized between the multi-gear and the second speed change gear set, the speed change transmission with more than four gears is realized through the combination of the two speed change transmission, and the length types of silage straws produced by the silage machine are increased. On the basis of the technical scheme, the invention can be improved as follows. Further, the device also comprises a second output shaft and a second transmission gear, wherein the second output shaft is in transmission connection with the second transmission gear through a gear, and the second transmission gear is in transmission connection with the first transmission gear. The second output shaft can be used for connecting the other feeding module of the silage harvester, is convenient for supporting the two feeding modules to work simultaneously, occupies small space, enhances the functionality of the silage harvester, saves other independent gearbox structures, and simultaneously, the power of the two output shafts is transmitted through the middle two shafts so as to be controlled by the safety clutch, thereby avoiding the damage of gears caused by grass blockage and overload, and having long service life and good reliability. Further, the device also comprises an input reversing shaft, wherein the input reversing shaft is connected with a reversing driving wheel, and the reversing driving wheel can be meshed with or separated from the second transmission gear when moving along the axial direction of the input reversing shaft. When the safety clutch is disconnected, the reversing driving wheel is meshed with the second transmission gear, the reversing driving device is started to drive the second