Two-shaft type transmission structure of power takeoff

Abstract

The invention relates to the technical field of transmission structures, in particular to a power takeoff two-shaft type transmission structure which comprises a power takeoff carrier seat and a power takeoff carrier sleeve, the power takeoff carrier sleeve is fixedly installed on the power takeoff carrier seat, an input shaft, a first output shaft and a second output shaft are installed on the power takeoff carrier seat, a double-shaft synchronous supporting assembly is installed on the power takeoff carrier sleeve, and a first transmission shaft and a second transmission shaft are installed on the double-shaft synchronous supporting assembly. The double-shaft synchronous supporting assembly conducts auxiliary supporting on the first output shaft and the second output shaft in the circumferential direction, a first bearing strip, a second bearing strip and a third bearing strip are arranged on the power take-off load sleeve, and the first output shaft and the second output shaft can be circumferentially supported under the cooperation effect of the first bearing strip, the second bearing strip and the third bearing strip. The shaft body extending out of the outer side of the power takeoff is well borne, the operation stability of the power takeoff is guaranteed, the bearing capacity of the power takeoff is higher, when auxiliary supporting of the first output shaft and the second output shaft is carried out, synchronous supporting of the first output shaft and the second output shaft can be achieved only by rotating the thread driving rod, and operation is easy, convenient and rapid.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission structures, and in particular to a two-shaft transmission structure for a power take-off. Background Art

[0002] A dual-shaft power take-off is a specially designed power output device, a type of power take-off. It transmits power from the engine or gearbox to external equipment through two output shafts. It is widely used in agricultural machinery, engineering vehicles, special vehicles and other fields. The gear on the input shaft meshes 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-stage gear to achieve medium-speed power output, and the other output shaft (variable-speed output shaft) is reduced by a second gear and a boost gear to achieve variable speed and boost output.

[0003] The existing dual-axis 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 on the power take-off are easily broken and failed, thereby causing damage to the power take-off and failing to ensure the safe use of the dual-axis power take-off. Summary of the Invention

[0004] The object of the present invention is to provide a two-shaft transmission structure for a power take-off to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A two-shaft transmission structure for a power take-off includes a power take-off carrier and a power take-off sleeve. The power take-off sleeve is fixedly mounted on the power take-off carrier. An input shaft, a first output shaft, and a second output shaft are mounted on the power take-off carrier. A dual-shaft synchronous support assembly is mounted on the power take-off sleeve. The dual-shaft synchronous support assembly provides auxiliary support to the first and second output shafts from a circumferential direction. 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; 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.

[0006] Preferably, 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.

[0007] Preferably, a threaded driving hole is provided on the driving strip, and the threaded driving hole is threadably matched with the threaded driving rod.

[0008] Preferably, the threaded drive rod drives the slats to move, thereby driving the dual-axis synchronous support assembly to move.

[0009] Preferably, the dual-axis synchronous support assembly includes a movable support plate, a movable support plate and a third support bar. There are two movable support plates, which are symmetrically arranged at the upper and lower ends of the power take-off sleeve.

[0010] Preferably, 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.

[0011] Preferably, the driving slats are further connected to a movable support plate, and there are two movable support plates, which are 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.

[0012] Preferably, the movable carrier plate is movably connected to a third bearing bar, and 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.

[0013] Preferably, 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.

[0014] Preferably, 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 to the input shaft.

[0015] Preferably, the lock plate assembly is a lock column support block, a lock plate column is fixedly provided on the lock column support block, and the lock plate column cooperates with the driving slat to lock the driving slat.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The power take-off sleeve is provided with a first bearing bar, a second bearing bar and a third bearing bar. With the cooperation of the three, the first and second output shafts can be circumferentially supported, and the shaft body extending outside the power take-off is well supported, thereby ensuring its operational stability and enhancing its load-bearing capacity. When providing auxiliary support for the first and second output shafts, synchronous support of the two can be achieved by simply rotating the threaded drive rod, which is simple, convenient and quick to operate.

[0017] 2. When the threaded driving rod rotates, it will drive the movable supporting plate to move. As the movable supporting plate moves, it can push the pushed supporting rod to move and then drive the movable connecting plate frame to move. Under the action of the movable connecting plate frame, the fifth supporting bar can be driven to move, so that the fourth supporting bar and the fifth supporting bar can support the input shaft from the circumferential direction, play a good bearing role on the output shaft, and ensure its stable operation. That is, the auxiliary support of the input shaft, the first output shaft and the second output shaft can be completed simultaneously through one operation, which is very convenient.

[0018] 3. In addition, when the movable support plate moves, it will drive the first lock plate to be inserted into the first receiving cavity, and drive the second lock plate to be inserted into the second receiving cavity. At the same time, it will also make the push-up connecting block contact with the power take-off carrier. In this way, under the joint action of the three, it can play an auxiliary fixing role for the power take-off carrier and the power take-off carrier sleeve, ensuring the firmness of the installation between the two, and driving the slats to achieve self-locking, further ensuring the stability of the auxiliary support for the input shaft, the first output shaft and the second output shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A first-person perspective diagram of the power take-off assembly.

[0020] Figure 2 A second-view diagram of the power take-off assembly.

[0021] Figure 3 This is a schematic diagram of the assembly of the power take-off sleeve, movable carrier plate and third load-bearing bar.

[0022] Figure 4 This is a first-perspective structural diagram of the power take-off carrier and the power take-off sleeve.

[0023] Figure 5 This is a schematic structural diagram of the power take-off carrier and the power take-off sleeve from a second perspective.

[0024] Figure 6 Schematic diagram from the first perspective of the assembly of the driving slat, movable support plate, movable support plate and third load-bearing bar.

[0025] Figure 7 Schematic diagram from a second perspective of the assembly of the driving slat, the movable carrier, the moving carrier and the third load-bearing bar.

[0026] Figure 8 Schematic diagram of the structure for driving the slats.

[0027] In the figure: 1. Power take-off carrier; 11. First bearing cavity; 12. Bearing convex block; 13. Bearing through hole; 14. Bearing convex plate; 15. Convex 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 bearing block; 23. Mounting socket; 24. Bearing connecting rod; 25. Protruding plate; 26. Matching bearing rod; 27. Matching support plate; 28. Mounting bearing rod; 3. Threaded drive rod; 31. Bearing; 4. Drive strip; 41. Threaded drive hole; 42. Inclined connecting strip; 43. Oblique channel; 44. Operating cavity; 45. Lock plate socket; 46. Connecting strip plate; 47. First driving hinge plate; 5. Movable bearing plate; 51. Connecting through hole; 52. Matching connecting plate; 53. First bearing bar; 54, first bearing roller; 6, movable bearing plate; 61, movable bearing hole; 62, second bearing bar; 63, second bearing roller; 64, protruding connecting block; 65, second driving hinge plate; 66, auxiliary locking bar; 661, first locking plate; 662, second locking plate; 67, matching plug rod; 68, bearing beam plate; 69, pushing connecting block; 691, connecting plug hole; 7, third bearing bar; 71, third bearing roller; 72, matching through hole; 8, movable connecting plate frame; 81, pushed bearing rod; 82, fourth bearing bar; 83, fourth bearing roller; 84, lower connecting plate; 85, third driving hinge plate; 9, fifth bearing bar; 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

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The present invention provides a technical solution: like Figure 1 and Figure 2As shown, a two-shaft transmission structure of a power take-off includes a power take-off carrier 1 and a power take-off sleeve 2, the power take-off sleeve 2 is fixedly mounted on the power take-off carrier 1, an input shaft 16, a first output shaft 17 and a second output shaft 18 are mounted on the power take-off carrier 1, 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 sleeve 2, a dual-shaft synchronous support assembly is mounted on the power take-off sleeve 2, the dual-shaft synchronous support assembly provides auxiliary support to the first output shaft 17 and the second output shaft 18 from the circumferential direction, the dual-shaft synchronous support assembly is connected to a support drive mechanism, the support drive mechanism is mounted on the power take-off sleeve 2, the dual-shaft synchronous support assembly is driven by the support drive mechanism, a locking plate assembly is further mounted on the power take-off sleeve 2, the support drive mechanism is locked by the locking plate assembly to ensure the stability of the support drive mechanism, a shaft bearing assembly is mounted on the power take-off carrier 1, the input shaft 16 is circumferentially auxiliary supported by the shaft bearing assembly, and the shaft bearing assembly is driven by the dual-shaft synchronous support assembly.

[0030] like Figure 4 and Figure 5 As shown, the two sides of the power take-off carrier 1 are symmetrically provided with a first bearing cavity 11, and the two sides of the power take-off carrier 1 are symmetrically fixed with bearing protrusions 12, and the bearing protrusions 12 are provided with bearing through holes 13. The power take-off carrier 1 on the upper and lower sides of the input shaft 16 is symmetrically fixed with bearing protrusions 14, and the bearing protrusions 14 are provided with protrusion bearing holes 15. The two sides of the power take-off carrier 2 are symmetrically provided with a second bearing cavity 20, and the power take-off carrier 2 is fixed with a bearing column block 21. In addition, the power take-off carrier Side load blocks 22 are symmetrically fixed on both sides of the sleeve 2, and a load-bearing connecting rod 24 is fixed between the side load blocks 22 and the load-bearing column block 21, and a mounting socket 23 is opened on one of the side load blocks 22. Protruding platforms 25 are symmetrically fixed on the upper and lower sides of the load-bearing column block 21, and a matching supporting rod 26 is fixed on the protruding platform 25. Matching support plates 27 are symmetrically fixed on the upper and lower ends of the power-taking sleeve 2, and a mounting supporting rod 28 is fixed on the matching support plate 27.

[0031] like Figure 1 、 Figure 4 and Figure 8As shown, the support drive mechanism includes a threaded drive rod 3 and a drive slat 4, a bearing 31 is sleeved on the threaded drive rod 3, and the threaded drive rod 3 is installed on the power take-off sleeve 2 through the bearing 31, and a threaded drive hole 41 is provided on the drive slat 4, and the threaded drive hole 41 is threadedly matched with the threaded drive rod 3, and the threaded drive rod 3 drives the drive slat 4 to move, thereby driving the dual-axis synchronous support assembly to move, and the bearing 31 is installed on the bearing column block 21, and the two ends of the drive slat 4 are symmetrically fixed with inclined connecting strips 42, and the inclined connecting strips 42 are provided with inclined channels 43, and one of the inclined connecting strips 42 is also provided with an operating cavity 44, and a lock plate socket 45 is provided at the bottom of the operating cavity 44, and connecting strip plates 46 are symmetrically fixed on the upper and lower sides of the drive slat 4, and the connecting strip plates 46 are hinged with a first driving hinge plate 47.

[0032] like Figure 1 、 Figure 6 and Figure 7 As shown, the dual-axis synchronous support assembly includes a movable support plate 5, a mobile support plate 6 and a third bearing bar 7. There are two movable support plates 5, which are symmetrically arranged at the upper and lower ends of the power take-off carrier sleeve 2. A first bearing bar 53 is fixedly provided on the movable support plate 5, and the movable support plate 5 is movably connected to the driving slat 4 and is driven to move by the driving slat 4. The driving slat 4 is also connected to the movable support plate 6. There are two movable support plates 6, which are symmetrically arranged on both sides of the power take-off carrier sleeve 2 and are limitedly supported from both sides of the first output shaft 17 and the second output shaft 18. A connecting through hole 51 is opened on the movable support plate 5, and an installation support rod 28 is inserted in the connecting through hole 51, and matching connecting plates 52 are symmetrically fixed at both ends of the movable support plate 5. The matching connecting plate 52 is hinged to the first driving hinge plate 47, and a first bearing roller 54 is installed on the first bearing bar 53.

[0033] like Figure 3 、 Figure 6 and Figure 7As shown, the movable carrier plate 6 is movably connected to the third bearing bar 7, and there are two third bearing bars 7. The third bearing bar 7 on the upper side supports the first output shaft 17, and the third bearing bar 7 on the lower side supports the second output shaft 18. A movable bearing hole 61 is opened on the movable carrier plate 6, and a bearing connecting rod 24 is inserted into the movable bearing hole 61. The second bearing bar 62 is symmetrically fixed on the movable carrier plate 6, and the second bearing roller 63 is installed on the second bearing bar 62. A protruding connecting block 64 is fixed on the movable carrier plate 6, and a second driving hinge plate 65 is symmetrically hinged on the protruding connecting block 64. The other end of the second driving hinge plate 65 is hinged to the third bearing bar 7. A third bearing roller 71 is installed on it, and a matching through hole 72 is provided on the third bearing bar 7, and a matching supporting rod 26 is inserted in the matching through hole 72. In addition, an auxiliary locking strip 66 is symmetrically fixed on the movable supporting plate 6, and a first locking plate 661 and a second locking plate 662 are fixed on the auxiliary locking strip 66, and a matching insertion rod 67 is fixed between the auxiliary locking strips 66, and the matching insertion rod 67 is inserted in the oblique channel 43, and the matching insertion rod 67 is in contact with the inner wall of the oblique channel 43, and a bearing beam plate 68 is fixed between the auxiliary locking strips 66, and a push-up connecting block 69 is fixed on the bearing beam plate 68, and a connecting socket 691 is provided on the push-up connecting block 69.

[0034] like Figure 2 As shown, the shaft bearing assembly includes a movable connecting plate frame 8 and a fifth bearing bar 9, the movable connecting plate frame 8 is driven by the movable bearing plate 6, the movable connecting plate frame 8 is movably connected to the fifth bearing bar 9, driving the fifth bearing bar 9 to move, and the movable connecting plate frame 8 and the fifth bearing bar 9 cooperate to provide circumferential support for the input shaft 16, a pushed bearing rod 81 is fixedly provided on the movable connecting plate frame 8, the pushed bearing rod 81 is inserted into the bearing through hole 13, and a fourth bearing bar 82 is fixedly provided at the lower end of the movable connecting plate frame 8, a fourth bearing roller 83 is installed on the fourth bearing bar 82, and a lower connecting plate bar 84 is fixedly provided at the lower end of the fourth bearing bar 82, and a third driving hinge plate 85 is hinged on the movable connecting plate frame 8 and the lower connecting plate bar 84 respectively. The other end of the plate 85 is hinged to the fifth bearing bar 9, and the fifth bearing bar 9 is symmetrically arranged 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 hinged to the fifth bearing bar 9 on the upper side of the input shaft 16, and the third drive hinge plate 85 on the lower connecting plate 84 is hinged to the fifth bearing bar 9 on the lower side of the input shaft 16. A fifth bearing roller 91 is installed on the fifth bearing bar 9, and a bearing matching rod 92 is fixedly provided on the fifth bearing bar 9. The bearing matching rod 92 is inserted in the convex plate bearing hole 15, and a bearing end plate 93 is fixed on the bearing matching rod 92, and a matching spring 94 is sleeved on the bearing matching rod 92. The two ends of the matching spring 94 are respectively fixed on the bearing end plate 93 and the bearing convex plate 14.

[0035] like Figure 3As shown, the lock plate assembly is a lock column support block 10, on which a lock plate column 101 is fixedly provided. The lock plate column 101 cooperates with the driving slat 4 to lock the driving slat 4. One end of the lock plate column 101 is inserted into the mounting socket 23, and a connecting spring 102 is sleeved on the lock plate column 101. The two ends of the connecting spring 102 are respectively fixed on the lock column support block 10 and the side carrier block 22.

[0036] When the input shaft 16, the first output shaft 17 and the second output shaft 18 are auxiliary supported, the threaded driving rod 3 is rotated. As the threaded driving rod 3 rotates, the driving slat 4 is driven to move under the action of the thread. As the driving slat 4 moves, the movable carrier plate 5 is driven to move toward each other under the action of the first driving hinge plate 47. At the same time, as the driving slat 4 moves, the two movable carrier plates 6 are driven to move toward each other under the cooperation of the oblique channel 43 and the matching plug rod 67. As the movable carrier plate 6 moves, the two third bearing bars 7 are driven to move back to each other under the action of the second driving hinge plate 65. In this way, the first output shaft 17 and the second output shaft 18 can be supported under the joint action of the first bearing bar 53, the second bearing bar 62 and the third bearing bar 7. Circumferential auxiliary support is provided, 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, ensuring that the first output shaft 17 and the second output shaft 18 can rotate smoothly while being able to provide good support to both, ensuring the stability of their operation, and driving the slat 4 to push the lock plate column 101 to move under the action of the inclined connecting strip 42 during the movement, thereby making the connecting spring 102 in a compressed state until the lock plate column 101 is aligned with the lock plate insertion hole 45, and under the action of the connecting spring 102, the lock plate column 101 is inserted into the lock plate insertion hole 45 to achieve the fixation of the driven slat 4, and in addition, the mobile carrier plate 6 will make the first lock plate 661 inserted into the first bearing cavity when moving. 11, the second locking plate 662 is inserted into the second bearing cavity 20, so that under the action of the first locking plate 661 and the second locking plate 662, the fixation between the power take-off carrier 1 and the power take-off sleeve 2 can be further strengthened, and with the movement of the movable carrier plate 6, the pushing connecting block 69 will be in contact with the power take-off carrier 1, so that under the action of the pushing connecting block 69, the fixation between the power take-off carrier 1 and the power take-off sleeve 2 can be further strengthened, and with the movement of the pushing connecting block 69, the pushed supporting rod 81 will be inserted into the connecting socket 691 until the pushed supporting rod 81 contacts the bottom of the connecting socket 691, so that the pushing connecting block 69 will push the pushed supporting rod 81 to move, thereby driving the movable connecting plate frame 8 to move, and as the movable connecting plate 8 moves, the pushing connecting block 69 will push the pushed supporting rod 81 to move. The movement of the plate frame 8 will drive the fifth supporting bar 9 to move under the action of the third driving hinge plate 85, so that the fourth supporting bar 82 and the fifth supporting bar 9 can provide good circumferential support for the input shaft 16 under the joint action, and the fourth supporting roller 83 and the fifth supporting roller 91 are in contact with the input shaft 16 to ensure the stable operation of the input shaft 16. When it is necessary to disassemble the power take-off, push the lock plate column 101 from the operating chamber 44 to make it withdraw from the lock plate socket 45, so that the driving slat 4 can be put into the unlocked state, and then the threaded driving rod 3 is rotated in the reverse direction to drive the driving slat 4 to move in the reverse direction, so that the input shaft 16, the first output shaft 17 and the second output shaft 18 are released, thereby realizing the smooth disassembly of the power take-off, and the operation is simple, convenient and fast.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended 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 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; 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 support drive mechanism comprises a threaded drive rod and a drive strip. A bearing is sleeved on the threaded drive rod, and the threaded drive rod is mounted on the power take-off sleeve via the bearing.

3. The two-shaft transmission structure of a power take-off according to claim 2, characterized in that: A threaded driving hole is provided on the driving strip, and the threaded driving hole is threadably matched with the threaded driving rod.

4. The two-shaft transmission structure of a power take-off according to claim 3, characterized in that: The threaded driving rod drives the slats to move, thereby driving the dual-axis synchronous support assembly to move.

5. The two-shaft transmission structure of a power take-off according to claim 4, characterized in that: The dual-axis synchronous support assembly includes a movable support plate, a moving support plate and a third support bar. There are two movable support plates, which are symmetrically arranged at the upper and lower ends of the power take-off sleeve.

6. The two-shaft transmission structure of a power take-off according to claim 5, characterized in that: 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.

7. The two-shaft transmission structure of a power take-off according to claim 6, characterized in that: The driving slats are further connected to a movable support plate. There are two movable support plates, which are 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.

8. The two-shaft transmission structure of a power take-off according to claim 7, 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.

9. The two-shaft transmission structure of a power take-off according to claim 8, 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.

10. The two-shaft transmission structure of a power take-off according to claim 9, 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.

11. The two-shaft transmission structure of a power take-off according to claim 10, 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.

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