阅读说明：本技术 一种带手动操作拨轴的动力选择装置 (power selection device with manually operated shifting shaft ) 是由 郝明锐 吉强 袁晓明 赵海兴 肖洪彬 杨振声 王素慧 李亭洁 仇卫健 张学瑞 于 2018-06-04 设计创作，主要内容包括：本发明涉及运输机械技术领域,具体是一种带手动操作拨轴的动力选择装置,解决了双动力运输设备动力选择切换成功率较低的问题,包括箱体、齿轮、齿轮轴、双向离合器、单向超越离合器、软轴和弹簧,本发明在动力选择装置内部设置了双向离合器和单向超越离合器,手动操作双向离合器选择动力传动的路径,一旦切换过程中发生双向离合器啮合困难,可以通过设置在箱体之外的软轴手动远程操作单向超越离合器,改变双向离合器内啮合元件的初始相对位置,提高重新进行双向离合器切换操作的成功率,切换操作完成后,单向超越离合器在弹簧力的作用下内外脱开,不影响正常的动力传递。(The invention relates to the technical field of transport machinery, in particular to a power selection device with a manually operated shifting shaft, which solves the problem of low success rate of power selection switching of double-power transport equipment and comprises a box body, a gear shaft, a two-way clutch, a one-way overrunning clutch, a flexible shaft and a spring. The one-way overrunning clutch can be manually operated remotely through a flexible shaft arranged outside the box body, the initial relative position of the inner engaging element of the two-way clutch is changed, the success rate of the switching operation of the two-way clutch is improved, after the switching operation is finished, the one-way overrunning clutch is disengaged from the inside and the outside under the action of the spring force, and normal power transmission is not influenced.)

1. The utility model provides a take power selection device of manually operation dial axle which characterized in that: the device comprises a box body (2), gears, a gear shaft, a two-way clutch (3), a one-way overrunning clutch (9), a flexible shaft (11) and a spring (12), wherein an upper axis, a middle axis and a lower axis are distributed in the box body (2), and a motor input shaft (10) and a motor input shaft gear (8) are arranged at the upper axis; the middle gear shaft (6), the middle gear shaft (7), the one-way overrunning clutch (9) and the middle shaft (14) are arranged at the central axis, one end of the middle shaft (14) extending out of the box body (2) is connected with the lower end of a rocker (13), the upper end of the rocker (13) is respectively connected with a flexible shaft (11) and a spring (12), the other end of the flexible shaft (11) is fixed at any place convenient for manual and remote switching operation, and the other end of the spring (12) is fixed with the transportation equipment nearby; an engine input shaft (1) and an engine output shaft (5) are arranged at the lower axis; the output shaft (5) is concentric with the engine input shaft (1), an output shaft gear (4) is arranged on the output shaft (5), a two-way clutch (3) is arranged at the axis of the output shaft (5), and the two-way clutch (3) can select a power transmission path, so that the power input of an engine or a motor is realized, and the power transmission of the motor or the engine is stopped; one-way freewheel clutch (9) are in the off-going state all the time in the normal course of working of motor, and when the motor stopped, can lock one-way freewheel clutch (9) through flexible axle (11), pulling flexible axle (11) can make jackshaft (6) and motor input shaft (10) rotate, unclamp flexible axle (11), and spring (12) pulling flexible axle (11) reset, and one-way freewheel clutch (9) are in the off-going state again.

2. A power selection device with a manually operated paddle according to claim 1 wherein: the engine input shaft (1), the bidirectional clutch (3), the output shaft gear (4) and the output shaft (5) are coaxially arranged, the left end of the bidirectional clutch (3) is fixed with the engine input shaft (1), the right end of the bidirectional clutch (3) is fixed with the output shaft gear (4), the output shaft gear (4) is meshed with the middle shaft gear (7), and the output shaft gear (4) can freely rotate on the output shaft (5) when the bidirectional clutch (3) is disengaged from the output shaft (5).

3. A power selection device with a manually operated paddle according to claim 1 wherein: the one-way overrunning clutch (9) comprises a one-way overrunning clutch outer ring (15), a one-way overrunning clutch roller (16) and a one-way overrunning clutch inner star wheel (17), the one-way overrunning clutch inner star wheel (17) is fixed with the middle shaft gear (7), the middle shaft gear (7) is meshed with the motor input shaft gear (8), and the one-way overrunning clutch outer ring (15) is fixed with the middle shaft (14) and rotates along with the middle shaft gear.

Technical Field

The invention relates to the technical field of transport machinery, in particular to a power selection device with a manual remote operation shifting shaft.

background

in recent years, in the field of transport machinery, transport equipment driven by two power sources in a time-sharing manner appears, the two power sources are usually a diesel engine and a motor, and the equipment can be powered by the diesel engine to drive a travelling transmission system of the equipment and can also be powered by the motor to drive the travelling transmission system of the equipment. The device has the power selection problem, when a driver selects a diesel engine driving mode, the power output by the diesel engine is input into a walking transmission system of the device through a power selection device, and meanwhile, a power transmission path of a motor is cut off; on the contrary, when the driver selects the motor driving mode, the power output by the motor is input into the walking transmission system of the equipment through the power selection device, and the power transmission path of the diesel engine is cut off.

There are generally two types of power selection device configurations. One is to realize the transmission and the cutting off of the power by utilizing the combination and the disconnection of the friction disc, the mode contains a friction pair element, has the advantages of smooth and smooth combination, but needs a complex operating mechanism and an actuating mechanism to control the compression and the release of the friction pair element, and has the characteristics of complex structure and higher cost. The other is to realize the transmission and the cut-off of the power by utilizing the engagement and the disengagement of the engaging element, which has the advantages of large bearing capacity, small external dimension and simple structure, but the engagement process of the engaging element is easily influenced by the initial position of the engaging element, if the initial position of the engaging element is at a position which is not beneficial to the engagement and the engagement of the engaging element, the engagement of the engaging element can not be ensured to be completed by one switching operation, the power switching of the power selection device is not successful, and the initial position of the stop of the engaging element is generally random, so the success rate of the power switching of the power selection device with the structure is lower than that of a friction disc type power switching device, and the reliability is low.

Disclosure of Invention

In order to solve the above problems, the present invention provides a power selection device with a manually operated dial shaft, which is used when the switching of the dual-power transportation equipment is difficult in the power selection process, a flexible shaft located outside a gear box body is manually operated to rotate a gear shaft in the gear box body, so that the relative positions of two meshing elements in a clutch responsible for power selection are changed, the meshing conditions are changed, the switching operation is conveniently performed again, and the operation success rate and the reliability of the power selection device during the power switching operation are improved.

The invention is realized by the following technical scheme: a power selection device with a manually operated shifting shaft comprises a box body, a gear shaft, a two-way clutch, a one-way overrunning clutch, a flexible shaft and a spring, wherein an upper axis, a middle axis and a lower axis are distributed in the box body, and a motor input shaft gear are arranged at the upper axis; the middle gear shaft, the middle shaft gear, the one-way overrunning clutch and the middle shaft are arranged at the central axis, one end of the middle shaft, which extends out of the box body, is connected with the lower end of a rocker, the upper end of the rocker is respectively connected with a flexible shaft and a spring, the other end of the flexible shaft is fixed at any place convenient for manual switching operation, and the other end of the spring is fixed nearby equipment; an engine input shaft and an engine output shaft are arranged at the lower axis; the output shaft is concentric with the engine input shaft, an output shaft gear is arranged on the output shaft, a bidirectional clutch is arranged at the axis of the output shaft, and the bidirectional clutch can select a power transmission path, so that the power input of the engine or the motor is realized, and the power transmission of the motor or the engine is stopped; the one-way overrunning clutch is always in a disengaged state in the normal working process of the motor, when the motor stops, the one-way overrunning clutch can be locked by pulling the flexible shaft to enable the intermediate shaft and the motor input shaft to rotate, the flexible shaft is loosened, the flexible shaft is pulled by the spring to reset, and the one-way overrunning clutch is in the disengaged state again. The engine input shaft, the bidirectional clutch, the output shaft gear and the output shaft are coaxially arranged, the left end of the bidirectional clutch is fixed with the engine input shaft, the right end of the bidirectional clutch is fixed with the output shaft gear, the output shaft gear is meshed with the middle shaft gear, and the output shaft gear can freely rotate on the output shaft when the right end of the bidirectional clutch is disengaged.

The one-way overrunning clutch comprises an outer ring of the one-way overrunning clutch, a roller of the one-way overrunning clutch and an inner star wheel of the one-way overrunning clutch, the inner star wheel of the one-way overrunning clutch is fixed with a gear of the intermediate shaft, the gear of the intermediate shaft is meshed with a gear of the input shaft of the motor, and the outer ring of the one-way overrunning clutch is fixed with the intermediate shaft and swings together with the intermediate shaft.

The invention has the beneficial effects that:

the invention has obvious advancement compared with the background technology, the two-way clutch and the one-way overrunning clutch are arranged in the power selection device, the two-way clutch can be manually and remotely operated to select a power transmission path, once the two-way clutch is difficult to engage in the switching process, the one-way overrunning clutch can be operated through a flexible shaft arranged outside a box body, the initial relative position of an inner engaging element of the two-way clutch is changed, the success rate of switching operation of the two-way clutch is improved, and after the switching operation is finished, the one-way overrunning clutch is disengaged inside and outside under the action of the spring force without influencing the normal power transmission.

Drawings

FIG. 1 is a schematic view of the power selecting device of the present invention;

FIG. 2 is a schematic structural view of the overrunning clutch of FIG. 1;

FIG. 3 is a first schematic view illustrating the operation of the power switching device according to the present invention;

FIG. 4 is a second schematic diagram of the power switching device according to the present invention;

FIG. 5 is a first schematic diagram of the operation of the overrunning clutch;

Fig. 6 is a second working diagram of the overrunning clutch.

In the figure: 1-engine input shaft, 2-box, 3-two-way clutch, 4-output shaft gear, 5-output shaft, 6-intermediate gear shaft, 7-intermediate shaft gear, 8-motor input shaft gear, 9-one-way overrunning clutch, 10-motor input shaft, 11-flexible shaft, 12-spring, 13-rocker, 14-intermediate shaft, 15-one-way overrunning clutch outer ring, 16-one-way overrunning clutch roller and 17-one-way overrunning clutch inner star wheel.

Detailed Description

The invention is further explained by referring to fig. 1-6, an upper axis, a middle axis and a lower axis are distributed in the box body 2, a motor input shaft 10 and a motor input shaft gear 8 are arranged at the upper axis, and the motor input shaft gear 8 is fixed on the motor input shaft 10 and rotates together with the motor input shaft 10; an intermediate gear shaft 6, an intermediate gear 7 and a one-way overrunning clutch 9 are arranged at the central axis, the intermediate gear 7 is fixed on the intermediate gear shaft 6 and rotates along with the intermediate gear shaft 6, an inner star wheel 17 of the one-way overrunning clutch 9 is fixed with the intermediate gear 7 and rotates along with the intermediate gear 7, the intermediate gear 7 is meshed with an input shaft gear 8 of a motor, an outer ring 15 of the one-way overrunning clutch 9 is fixed with an intermediate shaft 14 and can swing along with the intermediate shaft 14, one end of the intermediate shaft 14 extends out of the box body 2, the end part of the intermediate shaft 14 extending out of the box body 2 is fixed with the lower end of a rocker 13, the rocker 13 can drive the intermediate shaft 14 to swing together, a flexible shaft 11 and a spring 12 are arranged at the upper end of the rocker 13, one end of the flexible shaft 11 is connected with the upper end of, the other end is fixed at any place convenient for operation, one end of the spring 12 is fixed, and the other end is connected with the upper end of the rocker 13; an engine input shaft 1, a bidirectional clutch 3, an output shaft gear 4 and an output shaft 5 are arranged at the lower axial line in the box body 2, the engine input shaft 1, the bidirectional clutch 3, the output shaft gear 4 and the output shaft 5 are coaxial, the left end of the bidirectional clutch 3 is fixed with the engine input shaft 1 to rotate together, the right end of the bidirectional clutch 3 is fixed with the output shaft gear 4 to rotate together, the output shaft gear 4 can freely rotate on the output shaft 5 under the condition that the right end of the bidirectional clutch 3 is disengaged, and the output shaft gear 4 is meshed with a middle shaft gear 7, as shown in figure 1.

when the bidirectional clutch is in work, if the selective power is input from the engine input shaft 1, the left end of the bidirectional clutch 3 is engaged, the engine input shaft 1 rotates according to the direction shown in the figure 3, the output shaft 5 rotates according to the direction shown in the figure 3, and the intermediate shaft gear 7, the motor input shaft gear 8 and the motor input shaft 10 are in a free state;

When the one-way overrunning clutch works, if selective power is input from the motor input shaft 10, the right end of the two-way clutch 3 is connected with the output shaft gear 4, the motor input shaft 10 rotates according to the direction shown in the figure 4, the motor input shaft gear 8 and the intermediate shaft gear 7 drive the intermediate gear shaft 6 to rotate according to the direction shown in the figure 4, the intermediate shaft gear 7 drives the output shaft gear 4 and the output shaft 5 to rotate according to the direction shown in the figure 4, at the moment, the one-way overrunning clutch 9 is disengaged, the one-way overrunning clutch inner star wheel 17 rotates along with the intermediate shaft gear 7 and the intermediate gear shaft 6, the one-way overrunning clutch outer ring 15 in the one-way overrunning clutch 9 is in a static state, and the engine input shaft 1 is in a.

When the two-way clutch works, if the state of an engine input shaft 1 needs to be switched to a motor input shaft 10, the left end of a two-way clutch 3 is operated to be disengaged from the right end, and the operation can be finished, if the engagement is difficult in the process of engaging the right end, the flexible shaft 11 is pulled, the flexible shaft 11 pulls a rocker 13 to swing together with an intermediate shaft 14, a one-way overrunning clutch outer ring 15 in the one-way overrunning clutch 9 is locked with a one-way overrunning clutch inner star wheel 17 through a one-way overrunning clutch roller 16, the swinging intermediate shaft 14 drives an intermediate shaft gear 7, an output shaft gear 4 and the right end of the two-way clutch 3 to move through the locked one-way overrunning clutch 9, so that the relative position of inner engaging elements of the two-way clutch 3 is changed, as shown in figure 5, after the flexible shaft 11 is stopped to operate, the rocker 13 is reset under the action of a spring 12, at the moment, the one-way overrunning clutch 9 is, the inner star wheel 17 of the one-way clutch 9 is stopped at a new position as shown in fig. 6, and at this time, the switching operation of the power selection is performed again, that is, the right end of the two-way clutch 3 is operated again to be engaged with the output shaft gear 4, and if the engagement is not performed smoothly, the operation can be repeated.

When the two-way clutch is in work, if the state of the motor input shaft 10 needs to be switched to the state of the engine input shaft 1, the operation can be finished by operating the right end of the two-way clutch 3 to be disengaged from the left end for engagement, if the engagement is difficult in the process of engaging the left end, the two-way clutch 3 is operated to return to the right end engagement state first, the flexible shaft 11 is pulled, the flexible shaft 11 pulls the rocker 13 to swing together with the intermediate shaft 14, the outer ring 15 of the one-way overrunning clutch 9 in the one-way overrunning clutch 9 is locked with the inner star wheel 17 of the one-way overrunning clutch through the rollers 16 of the one-way overrunning clutch, the swinging intermediate shaft 14 drives the intermediate shaft gear 7, the output shaft gear 4 and the right end of the two-way clutch 3 to move through the locked one-way overrunning clutch 9, the relative position of the inner meshing elements of the two-way clutch 3 is changed, as shown in figure, the outer ring 15 of the one-way overrunning clutch 9 in the one-way overrunning clutch 9 is reset along with the rocker 13, the inner star wheel 17 of the one-way overrunning clutch 9 in the one-way overrunning clutch is stopped at a new position, as shown in fig. 6, at the moment, the switching work of power selection can be carried out again, namely, the left end of the two-way clutch 3 is operated again to be jointed with the input shaft 1 of the engine, and if the jointing can not be carried out smoothly, the operation can be carried out repeatedly.

The invention can manually operate the two-way clutch to select the power transmission path, once the two-way clutch 3 is difficult to engage in the switching process, the one-way overrunning clutch 9 can be remotely operated through the flexible shaft 11 arranged outside the box body 2, the initial relative position of the engaging element in the two-way clutch 3 is changed, and the success rate of the switching operation of the two-way clutch 3 is improved.