Power take-off two-shaft transmission structure

Abstract

The present invention relates to the technical field of transmission structures, and specifically to a two-shaft transmission structure of a power take-off, comprising a power take-off carrier and a power take-off sleeve, the power take-off sleeve being fixedly mounted on the power take-off carrier, an input shaft, a first output shaft, and a second output shaft being mounted on the power take-off carrier, a dual-shaft synchronous support assembly being mounted on the power take-off sleeve, the dual-shaft synchronous support assembly providing auxiliary support to the first output shaft and the second output shaft in a circumferential direction thereof, a first bearing bar, a second bearing bar, and a third bearing bar being provided on the power take-off sleeve, which cooperate to provide circumferential support to the first output shaft and the second output shaft, thereby providing good bearing effect on the shaft body extending outside the power take-off, ensuring its operational stability, and making its bearing capacity stronger, and when providing auxiliary support to the first output shaft and the second output shaft, it is only necessary to rotate the threaded driving rod to achieve synchronous support of the two, which is simple, convenient, and quick to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transmission structure, in particular to a two-axis type transmission structure of a power take-off. BACKGROUND

[0002] The double-shaft power take-off is a special designed power output device, which belongs to a type of power take-off, and power is transmitted from the engine or gearbox to external equipment through two output shafts. It is widely used in agricultural machinery, engineering vehicles and special vehicles. The gear on the input shaft is engaged with the gears on the two output shafts to distribute power to the two output shafts. One output shaft (medium-speed output shaft) is reduced by a first gear to achieve medium-speed power output, and the other output shaft (variable-speed output shaft) is reduced by a second gear and a force-increasing gear to achieve variable-speed and force-increasing output.

[0003] The existing double-shaft power take-off does not have an auxiliary support mechanism for the input shaft and the output shaft. Under the influence of overload working conditions, the input shaft and the output shaft of the power take-off are prone to breakage and failure, which causes damage to the power take-off and cannot guarantee the safe use of the double-shaft power take-off. SUMMARY

[0004] The purpose of the present application is to provide a two-axis type transmission structure of a power take-off to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A two-axis type transmission structure of a power take-off, comprising a power take-off carrier and a power take-off sleeve, the power take-off sleeve being fixedly installed on the power take-off carrier, the power take-off carrier being provided with an input shaft, a first output shaft and a second output shaft, the power take-off sleeve being provided with a double-shaft synchronous support assembly, the double-shaft synchronous support assembly being arranged to assist the support of the first output shaft and the second output shaft in the circumferential direction.

[0007] The double-shaft synchronous support assembly is connected with a support driving mechanism, the support driving mechanism being installed on the power take-off sleeve and driving the double-shaft synchronous support assembly.

[0008] The power take-off sleeve is also provided with a lock plate assembly, which locks the support driving mechanism to ensure the stability of the support driving mechanism.

[0009] The power take-off carrier is provided with a shaft body bearing assembly, which assists the circumferential support of the input shaft, and the shaft body bearing assembly is driven by the double-shaft synchronous support assembly.

[0010] Preferably, the support driving mechanism comprises a threaded driving rod and a driving plate strip, the threaded driving rod being provided with a bearing, and the threaded driving rod being installed on the power take-off sleeve by the bearing.

[0011] Preferably, the driving plate is provided with a threaded driving hole, and the threaded driving hole is in threaded cooperation with the threaded driving rod.

[0012] Preferably, the threaded driving rod drives the driving plate to move, thereby driving the double-shaft synchronous supporting assembly to move.

[0013] Preferably, the double-shaft synchronous supporting assembly comprises movable bearing plates, a moving bearing plate and third bearing strips, and the movable bearing plates are two and symmetrically arranged at the upper and lower ends of the power take-off carrier.

[0014] Preferably, the first bearing strips are fixedly arranged on the movable bearing plates, and the movable bearing plates are movably connected with the driving plate and driven to move by the driving plate.

[0015] Preferably, the driving plate is further connected with the moving bearing plate, and the moving bearing plate is two and symmetrically arranged at the two sides of the power take-off carrier to limit and support the first output shaft and the second output shaft.

[0016] Preferably, the moving bearing plate is movably connected with the third bearing strips, and the upper third bearing strip supports the first output shaft and the lower third bearing strip supports the second output shaft.

[0017] Preferably, the shaft body bearing assembly comprises a movable connecting plate frame and a fifth bearing strip, and the movable connecting plate frame is driven by the moving bearing plate.

[0018] Preferably, the movable connecting plate frame is movably connected with the fifth bearing strip, drives the fifth bearing strip to move, and the movable connecting plate frame and the fifth bearing strip cooperatively support the input shaft in the circumferential direction.

[0019] Preferably, the lock plate assembly is a lock column bearing block, the lock column bearing block is fixedly provided with a lock plate column, and the lock plate column cooperates with the driving plate to lock the driving plate.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1. The first bearing strip, the second bearing strip and the third bearing strip are arranged on the power take-off carrier, and the three cooperate to support the first output shaft and the second output shaft in the circumferential direction, thereby supporting the shaft body extending outside the power take-off device, ensuring the stability of the operation, making the bearing capacity stronger, and when assisting the support of the first output shaft and the second output shaft, only the threaded driving rod needs to be rotated to realize the synchronous support of the two, which is simple, convenient and fast.

[0022] 2. The threaded drive rod is rotated to drive the moving support plate to move, which can push the pushing support rod to move and drive the movable connecting plate frame to move, and the fifth bearing strip is driven to move under the action of the movable connecting plate frame, so that the fourth bearing strip and the fifth bearing strip can support the input shaft in the circumferential direction, which plays a good bearing role on the output shaft and ensures the stable operation of the input shaft, the first output shaft and the second output shaft. The auxiliary support can be completed at one time, which is very convenient.

[0023] 3. In addition, the moving support plate drives the first lock plate to be inserted into the first bearing cavity and the second lock plate to be inserted into the second bearing cavity when moving, and also makes the pushing block contact the power taking carrier, so that the power taking carrier and the power taking sleeve are fixed under the action of the three, which ensures the firmness between the two, and the drive plate can be self-locked, further ensuring the stability of the auxiliary support of the input shaft, the first output shaft and the second output shaft. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 First perspective view of the power taking device.

[0025] Figure 2 Second perspective view of the power taking device.

[0026] Figure 3 Assembly view of the power taking sleeve, the moving support plate and the third bearing strip.

[0027] Figure 4 First perspective view of the power taking carrier and the power taking sleeve.

[0028] Figure 5 Second perspective view of the power taking carrier and the power taking sleeve.

[0029] Figure 6 First perspective view of the drive plate, the movable support plate, the moving support plate and the third bearing strip.

[0030] Figure 7 Second perspective view of the drive plate, the movable support plate, the moving support plate and the third bearing strip.

[0031] Figure 8 Structure view of the drive plate.

[0032] In the figure: 1, power take-off carrier; 11, first bearing cavity; 12, bearing protrusion; 13, bearing through hole; 14, bearing protruding plate; 15, protruding plate bearing hole; 16, input shaft; 17, first output shaft; 18, second output shaft; 2, power take-off carrier sleeve; 20, second bearing cavity; 21, bearing column block; 22, side edge carrier block; 23, mounting jack; 24, bearing engagement rod; 25, protruding plate table; 26, matching bearing rod; 27, matching support plate; 28, mounting bearing rod; 3, threaded drive rod; 31, bearing; 4, drive plate; 41, threaded drive hole; 42, inclined connecting strip; 43, inclined channel; 44, operation cavity; 45, lock plate jack; 46, connecting strip plate; 47, first drive hinge plate; 5, movable bearing plate; 51, connecting through hole; 52, matching connecting plate; 53, first bearing strip; 54, first bearing roller; 6, moving bearing plate; 61, moving bearing hole; 62, second bearing strip; 63, second bearing roller; 64, protruding connecting block; 65, second drive hinge plate; 66, auxiliary lock strip; 661, first lock plate; 662, second lock plate; 67, matching plug rod; 68, bearing beam plate; 69, push-up connecting block; 691, engagement jack; 7, third bearing strip; 71, third bearing roller; 72, matching through hole; 8, movable connecting plate frame; 81, pushed bearing rod; 82, fourth bearing strip; 83, fourth bearing roller; 84, lower connecting plate strip; 85, third drive hinge plate; 9, fifth bearing strip; 91, fifth bearing roller; 92, bearing matching rod; 93, bearing end plate; 94, matching spring; 10, lock column bearing block; 101, lock plate column; 102, connecting spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] The present application provides a technical solution:

[0035] As Figure 1 and Figure 2As shown in the figure, a power take-off two-shaft transmission structure includes a power take-off carrier 1 and a power take-off carrier sleeve 2, the power take-off carrier sleeve 2 is fixedly installed on the power take-off carrier 1, the power take-off carrier 1 is provided with an input shaft 16, a first output shaft 17 and a second output shaft 18, the input shaft 16 passes through the power take-off carrier 1, the first output shaft 17 and the second output shaft 18 pass through the power take-off carrier sleeve 2, the power take-off carrier sleeve 2 is provided with a double-shaft synchronous support assembly, the double-shaft synchronous support assembly peripherally supports the first output shaft 17 and the second output shaft 18, the double-shaft synchronous support assembly is connected with a support driving mechanism, the support driving mechanism is installed on the power take-off carrier sleeve 2, the double-shaft synchronous support assembly is driven by the support driving mechanism, the power take-off carrier sleeve 2 is also provided with a lock plate assembly, the support driving mechanism is locked by the lock plate assembly to ensure the stability of the support driving mechanism, the power take-off carrier 1 is provided with a shaft body bearing assembly, the input shaft 16 is peripherally supported by the shaft body bearing assembly, and the shaft body bearing assembly is driven by the double-shaft synchronous support assembly.

[0036] As shown in the figure, Figure 4 and Figure 5 The power take-off carrier 1 is symmetrically provided with a first bearing cavity 11 on both sides, and the power take-off carrier 1 is also symmetrically provided with a bearing protrusion 12 on both sides, the bearing protrusion 12 is provided with a bearing through hole 13, the power take-off carrier 1 on the upper and lower sides of the input shaft 16 is symmetrically provided with a bearing protruding plate 14, the bearing protruding plate 14 is provided with a protruding plate bearing hole 15, the power take-off carrier sleeve 2 is symmetrically provided with a second bearing cavity 20 on both sides, and the power take-off carrier sleeve 2 is fixedly provided with a bearing column block 21, in addition, the power take-off carrier sleeve 2 is also symmetrically provided with a side bearing block 22 on both sides, the side bearing block 22 and the bearing column block 21 are fixedly provided with a bearing connecting rod 24, and one of the side bearing blocks 22 is provided with a mounting insertion hole 23, the upper and lower sides of the bearing column block 21 are symmetrically provided with a protruding plate table 25, the protruding plate table 25 is fixedly provided with a matching bearing rod 26, the upper and lower ends of the power take-off carrier sleeve 2 are symmetrically provided with a matching support plate 27, and the matching support plate 27 is fixedly provided with a mounting bearing rod 28.

[0037] As shown in the figure, Figure 1 , Figure 4 and Figure 8As shown, the support driving mechanism comprises a threaded driving rod 3 and a driving strip 4. The threaded driving rod 3 is sleeved with a bearing 31, and the threaded driving rod 3 is installed on the power taking sleeve 2 through the bearing 31. The driving strip 4 is provided with a threaded driving hole 41, and the threaded driving hole 41 is threadedly matched with the threaded driving rod 3. The threaded driving rod 3 drives the driving strip 4 to move, thereby driving the double-shaft synchronous support assembly to move. The bearing 31 is installed on the bearing column block 21. The driving strip 4 is symmetrically provided at both ends with a beveled connecting strip 42, which is provided with a beveled channel 43. One of the beveled connecting strips 42 is further provided with an operation cavity 44, and the cavity bottom of the operation cavity 44 is provided with a lock plate insertion hole 45. The driving strip 4 is symmetrically provided at the upper and lower sides with a connecting strip plate 46, which is hingedly connected with a first driving hinge plate 47.

[0038] As shown in Figure 1 , Figure 6 and Figure 7 , the double-shaft synchronous support assembly comprises a movable bearing plate 5, a moving bearing plate 6 and a third bearing strip 7. The movable bearing plate 5 is provided with a first bearing strip 53, and the movable bearing plate 5 is movably connected with the driving strip 4 to be driven by the driving strip 4 to move. The driving strip 4 is further connected with the moving bearing plate 6. The moving bearing plate 6 is provided with a connecting through hole 51, and the connecting through hole 51 is inserted with an installation bearing rod 28. The movable bearing plate 5 is symmetrically provided at both ends with a matching connecting plate 52, which is hingedly connected with the first driving hinge plate 47. The first bearing strip 53 is installed with a first bearing roller 54.

[0039] As shown in Figure 3 , Figure 6 and Figure 7As shown, the mobile bearing plate 6 movably connects with a third bearing strip 7, the third bearing strip 7 is two, the upper third bearing strip 7 supports the first output shaft 17, and the lower third bearing strip 7 supports the second output shaft 18, the mobile bearing plate 6 is provided with a mobile bearing hole 61, the mobile bearing hole 61 is inserted with a bearing connecting rod 24, the mobile bearing plate 6 is provided with a second bearing strip 62 symmetrically, the second bearing strip 62 is provided with a second bearing roller 63, and the mobile bearing plate 6 is provided with a protruding connecting block 64, the protruding connecting block 64 is hingedly connected with a second drive hinge plate 65 symmetrically, the other end of the second drive hinge plate 65 is hingedly connected with the third bearing strip 7, the third bearing strip 7 is provided with a third bearing roller 71, and the third bearing strip 7 is provided with a matching through hole 72, the matching through hole 72 is inserted with a matching bearing rod 26, in addition, the mobile bearing plate 6 is also provided with an auxiliary locking strip 66 symmetrically, the auxiliary locking strip 66 is provided with a first locking plate 661 and a second locking plate 662, and the auxiliary locking strip 66 is provided with a matching plug rod 67 fixedly, the matching plug rod 67 is inserted in the inclined channel 43, and the matching plug rod 67 is in contact with the inner wall of the inclined channel 43, the auxiliary locking strip 66 is also provided with a bearing beam plate 68 fixedly, the bearing beam plate 68 is provided with a push-up connecting block 69, and the push-up connecting block 69 is provided with a connecting plug hole 691.

[0040] As shown in the figure, Figure 2 The shaft bearing assembly includes a movable connecting plate frame 8 and a fifth bearing strip 9, the movable connecting plate frame 8 is driven by the mobile bearing plate 6, the movable connecting plate frame 8 is movably connected with the fifth bearing strip 9, drives the fifth bearing strip 9 to move, and the movable connecting plate frame 8 and the fifth bearing strip 9 cooperate to support the input shaft 16 circumferentially, the movable connecting plate frame 8 is provided with a pushed bearing rod 81 fixedly, the pushed bearing rod 81 is inserted in the bearing through hole 13, and the lower end of the movable connecting plate frame 8 is provided with a fourth bearing strip 82 fixedly, the fourth bearing strip 82 is provided with a fourth bearing roller 83, and the lower end of the fourth bearing strip 82 is provided with a lower connecting plate strip 84 fixedly, the movable connecting plate frame 8 and the lower connecting plate strip 84 are respectively hingedly connected with a third drive hinge plate 85, the other end of the third drive hinge plate 85 is hingedly connected with the fifth bearing strip 9, the fifth bearing strip 9 is two and is provided symmetrically on the upper and lower sides of the input shaft 16, the third drive hinge plate 85 on the movable connecting plate frame 8 is hingedly connected with the fifth bearing strip 9 on the upper side of the input shaft 16, and the third drive hinge plate 85 on the lower connecting plate strip 84 is hingedly connected with the fifth bearing strip 9 on the lower side of the input shaft 16, the fifth bearing strip 9 is provided with a fifth bearing roller 91, and the fifth bearing strip 9 is provided with a bearing matching rod 92 fixedly, the bearing matching rod 92 is inserted in the protruding plate bearing hole 15, the bearing matching rod 92 is provided with a bearing end plate 93 fixedly, and the bearing matching rod 92 is sleeved with a matching spring 94, and the two ends of the matching spring 94 are fixed on the bearing end plate 93 and the bearing protruding plate 14 respectively.

[0041] As shown in the figure, Figure 3As shown, the lock plate assembly is a lock column support block 10, and the lock plate column 101 is fixedly arranged on the lock column support block 10. The lock plate column 101 cooperates with the driving strip 4 to realize the locking of the driving strip 4. One end of the lock plate column 101 is inserted into the mounting hole 23, and a connecting spring 102 is sleeved on the lock plate column 101. Both ends of the connecting spring 102 are fixed on the lock column support block 10 and the side edge load block 22 respectively.

[0042] When the input shaft 16, the first output shaft 17 and the second output shaft 18 are assisted and supported, the threaded driving rod 3 is rotated, and the driving strip 4 is moved under the action of the thread under the rotation of the threaded driving rod 3. With the movement of the driving strip 4, the movable bearing plate 5 is moved towards under the action of the first driving hinge plate 47, and with the movement of the driving strip 4, the two moving bearing plates 6 are moved towards under the cooperation of the inclined channel 43 and the cooperating plug rod 67. With the movement of the moving bearing plate 6, the two third bearing strips 7 are moved away under the action of the second driving hinge plate 65, so that the first bearing strip 53, the second bearing strip 62 and the third bearing strip 7 can jointly assist and support the first output shaft 17 and the second output shaft 18 in the circumferential direction, and the first bearing roller 54, the second bearing roller 63 and the third bearing roller 71 are in contact with the first output shaft 17 and the second output shaft 18, which ensures the smooth rotation of the first output shaft 17 and the second output shaft 18 and provides good support for them, ensures the stability of the operation, and the driving strip 4 is moved under the action of the inclined connecting strip 42 during the movement, which pushes the lock plate column 101 to move, so that the connecting spring 102 is in a compressed state, until the lock plate column 101 is aligned with the lock plate insertion hole 45, and the lock plate column 101 is inserted into the lock plate insertion hole 45 under the action of the connecting spring 102 to realize the fixation of the driving strip 4. In addition, the moving bearing plate 6 will make the first lock plate 661 inserted into the first bearing cavity 11, and the second lock plate 662 inserted into the second bearing cavity 20, so that the first lock plate 661 and the second lock plate 662 can further strengthen the fixation between the power take-off carrier 1 and the power take-off carrier 2 under the action of the first lock plate 661 and the second lock plate 662. With the movement of the moving bearing plate 6, the push-up connecting block 69 will be in contact with the power take-off carrier 1, so that the push-up connecting block 69 can also further strengthen the fixation between the power take-off carrier 1 and the power take-off carrier 2 under the action of the push-up connecting block 69. With the movement of the push-up connecting block 69, the pushed bearing rod 81 is inserted into the connection insertion hole 691, until the pushed bearing rod 81 is in contact with the hole bottom of the connection insertion hole 691. In this way, the push-up connecting block 69 will push the pushed bearing rod 81 to move, thereby driving the movable connecting plate frame 8 to move, and with the movement of the movable connecting plate frame 8 under the action of the third driving hinge plate 85, the fifth bearing strip 9 is moved. In this way, the fourth bearing strip 82 and the fifth bearing strip 9 can jointly provide good circumferential support for the input shaft 16, and the fourth bearing roller 83 and the fifth bearing roller 91 are in contact with the input shaft 16, which ensures the stable operation of the input shaft 16. When the power take-off device needs to be disassembled, the lock plate column 101 is pushed out of the lock plate insertion hole 45 from the operation cavity 44, so that the driving strip 4 is in an unlocked state. Then, reverse rotation of the threaded driving rod 3 can drive the driving strip 4 to move in the opposite direction, so that the input shaft 16, the first output shaft 17 and the second output shaft 18 are released, realizing the smooth disassembly of the power take-off device. The operation is simple, convenient and fast.

[0043] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be made without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A two-shaft transmission structure for a power take-off, comprising a power take-off carrier and a power take-off sleeve, wherein the power take-off sleeve is fixedly mounted on the power take-off carrier, and an input shaft, a first output shaft, and a second output shaft are mounted on the power take-off carrier, characterized in that: A dual-axis synchronous support assembly is installed on the power take-off sleeve, and the dual-axis synchronous support assembly provides auxiliary support to the first output shaft and the second output shaft from the circumferential direction of the two; The dual-axis synchronous support assembly includes a movable support plate, a mobile support plate and a third support bar. The movable support plates are two and are symmetrically arranged at the upper and lower ends of the power take-off sleeve. The dual-axis synchronous support assembly is connected to a support drive mechanism, which is installed on the power take-off sleeve and drives the dual-axis synchronous support assembly through the support drive mechanism; The support drive mechanism includes a threaded drive rod and a drive strip. The threaded drive rod is sleeved with a bearing, and the threaded drive rod is mounted on the power take-off sleeve through the bearing. The drive strip is provided with a threaded drive hole, and the threaded drive hole is threadedly engaged with the threaded drive rod. The threaded driving rod drives the slats to move, thereby driving the dual-axis synchronous support assembly to move; A first bearing bar is fixedly provided on the movable support plate, and the movable support plate is movably connected to the driving bar so as to be driven to move by the driving bar; The driving slats are further connected to movable support plates, and there are two movable support plates symmetrically arranged on both sides of the power take-off sleeve to provide position limiting support to the first output shaft and the second output shaft from both sides; A locking plate assembly is also installed on the power take-off sleeve, which locks the support drive mechanism to ensure the stability of the support drive mechanism; The power take-off carrier is provided with a shaft bearing assembly, which provides circumferential auxiliary support to the input shaft through the shaft bearing assembly, and the shaft bearing assembly is driven by the dual-axis synchronous support assembly.

2. The two-shaft transmission structure of a power take-off according to claim 1, characterized in that: The movable carrier plate is movably connected to a third bearing bar. There are two third bearing bars. The upper third bearing bar supports the first output shaft, and the lower third bearing bar supports the second output shaft.

3. The two-shaft transmission structure of a power take-off according to claim 2, characterized in that: The shaft bearing assembly includes a movable connecting plate frame and a fifth bearing bar, and the movable connecting plate frame is driven by a movable supporting plate.

4. The two-shaft transmission structure of a power take-off according to claim 3, characterized in that: The movable connecting plate frame is movably connected to the fifth bearing bar to drive the fifth bearing bar to move, and the movable connecting plate frame and the fifth bearing bar cooperate to provide circumferential support for the input shaft.

5. The two-shaft transmission structure of a power take-off according to claim 4, characterized in that: The lock plate assembly is a lock column support block, on which a lock plate column is fixedly provided. The lock plate column cooperates with the driving slat to lock the driving slat.

Images