Multifunctional vertical broken shaft power take-off and its active lubrication system

Abstract

The utility model provides a kind of multifunctional vertical broken axle power take-off and its initiative lubricating system, power take-off includes: input shaft, rotationally equipped with first transmission gear;Output shaft, rotationally connected with input shaft, fixedly equipped with second transmission gear;First synchronizer, for connecting first transmission gear or output shaft;Supporting shaft, for installing idler gear meshed with first transmission gear, and rotationally equipped with third transmission gear meshed with second transmission gear;Second synchronizer, for making supporting shaft and third transmission gear connect or disconnect;Power take-off shaft, fixedly equipped with output gear, and meshed with idler gear. By only first synchronizer and first transmission gear connection, realize parking power take-off;First synchronizer and first transmission gear connection, second synchronizer and third transmission gear connection, realize driving power take-off;Only first synchronizer and output shaft connection, realize driving not power take-off;First synchronizer and output shaft connection, second synchronizer and third transmission gear connection, realize driving power take-off.

Description

Technical Field

[0001] This utility model relates to the field of automotive equipment technology, and in particular to a multifunctional vertical broken shaft power take-off and its active lubrication system. Background Technology

[0002] As a key power transmission component connecting the engine and the working device, the power take-off (PTO) is widely used in specialized vehicles and construction machinery such as dump trucks, concrete mixer trucks, water trucks, and truck-mounted cranes. Its core function is to obtain power from the engine to drive actuators such as hydraulic pumps, compressors, and generators, making it the central hub for enabling specialized vehicle operations. With the increasing demands for operational efficiency and equipment versatility in logistics, transportation, and construction, higher requirements are being placed on the power take-off's power output flexibility and adaptability to various scenarios.

[0003] Currently, existing power take-off (PTO) technologies generally suffer from limitations in their functional design, making it difficult to meet the multi-mode power demands of complex operational scenarios. Mainstream PTO products fall into two functional categories: one supports only parking PTO, meaning power can only be taken from the vehicle when it is completely stationary; the other supports only driving PTO, allowing power transmission only while the vehicle is in motion and lacking the ability to output power while parked. This functional limitation significantly restricts the practical operation of specialized vehicles. For example, concrete mixer trucks need to use driving PTO to maintain the rotation of the mixing drum during transport, and then switch to parking PTO to drive the unloading mechanism upon arrival at the construction site. In some special scenarios, it is also necessary to simultaneously provide power for mixing and auxiliary unloading while driving at low speeds. However, existing PTOs cannot simultaneously support both driving and parking PTO modes. Summary of the Invention

[0004] This invention provides a multifunctional vertical broken axle power take-off unit and its active lubrication system to solve the problem that existing power take-off units used in vehicles cannot simultaneously provide both driving and parking power take-off modes.

[0005] This utility model provides a multifunctional vertical broken shaft power take-off, comprising:

[0006] An input shaft is connected to the vehicle's gearbox, and a first transmission gear is rotatably mounted on the input shaft.

[0007] An output shaft is rotatably connected to the input shaft and is used to transmit power to drive the vehicle. A second transmission gear is fixedly provided on the output shaft.

[0008] A first synchronizer is connected to the input shaft. The first synchronizer can move along the axial direction of the input shaft to make the first transmission gear rotate synchronously with the input shaft, or to make the output shaft rotate synchronously with the input shaft.

[0009] A support shaft is used to mount an idler gear, which meshes with the first transmission gear. A third transmission gear is rotatably mounted on the support shaft, and the third transmission gear meshes with the second transmission gear.

[0010] A second synchronizer is connected to the support shaft. The second synchronizer can move along the axial direction of the support shaft to connect or disconnect the support shaft from the third transmission gear.

[0011] A power take-off shaft is used to output power to drive the equipment. An output gear is fixedly mounted on the power take-off shaft, and the output gear meshes with the idler gear.

[0012] In one embodiment of the present invention, the first transmission gear is provided with a first engagement gear ring, the input shaft is provided with a first splined hub, and the output shaft is provided with a second engagement gear ring.

[0013] In one embodiment of the present invention, the first synchronizer includes a first shift fork and a first spline sleeve. The first spline sleeve engages with the first spline hub. The first shift fork is used to drive the first spline sleeve to move axially along the input shaft, so that the first spline sleeve engages simultaneously with the first engagement gear ring and the first spline hub, or the first spline sleeve engages simultaneously with the second engagement gear ring and the first spline hub.

[0014] In one embodiment of the present invention, the support shaft is provided with a second splined hub, and the third transmission gear is provided with a third engagement gear ring.

[0015] In one embodiment of the present invention, the second synchronizer includes a second fork and a second spline sleeve. The second spline sleeve engages with the second spline hub. The second fork is used to drive the second spline sleeve to move axially along the support shaft, so that the second spline sleeve engages with the third engagement gear ring and the second spline hub simultaneously, or disengages the second spline sleeve from the third engagement gear ring.

[0016] In one embodiment of the present invention, a housing is further included, the housing comprising a body and a cover, the body having an opening on one side along its width for mounting the multifunctional vertical broken shaft power take-off, and the cover being connected to the body by bolts.

[0017] In one embodiment of the present invention, an oil tank is provided inside the shell body, and a sealing component is provided between the shell body and the shell cover, the sealing component being used to seal the connection gap between the shell body and the shell cover.

[0018] This utility model also provides an active lubrication system, applied to the multifunctional vertical broken shaft power take-off unit as described above, the active lubrication system comprising:

[0019] An oil pump is mounted on the housing, and the drive shaft of the oil pump is coaxially arranged and connected with the support shaft;

[0020] The lubrication circuit includes a main oil circuit and branch oil circuits. The main oil circuit is connected between the oil sump and the oil pump, and the branch oil circuits are connected to the oil pump. The branch oil circuits are used to lubricate the multifunctional vertical broken shaft power take-off unit.

[0021] In one embodiment of this utility model, a first bearing is provided between the power take-off shaft and the housing body, and a second bearing is provided between the power take-off shaft and the housing cover; a third bearing is provided between the support shaft and the housing body, and a fourth bearing is provided between the support shaft and the housing cover; a fifth bearing is provided between the output shaft and the housing body; and a sixth bearing is provided between the input shaft and the housing cover.

[0022] In one embodiment of the present invention, the branch oil circuit includes a first branch, a second branch, a third branch, a fourth branch, and a fifth branch. The first branch is used to lubricate the third bearing; the second branch is used to lubricate the first bearing; the third branch is used to lubricate the output gear; the fourth branch is used to lubricate the second bearing; and the fifth branch is used to lubricate the fourth bearing.

[0023] The beneficial effects of this utility model are as follows: This utility model proposes a multifunctional vertical broken shaft power take-off device and its active lubrication system, which drives the first synchronizer to make the output shaft and input shaft rotate synchronously, and the second synchronizer is disconnected from the third transmission gear, thereby realizing that the vehicle does not take off power while driving.

[0024] By driving the first synchronizer to make the first transmission gear rotate synchronously with the input shaft, and connecting the second synchronizer with the third transmission gear to make the third transmission gear rotate synchronously with the support shaft, the vehicle can take off power.

[0025] Alternatively, the output shaft can be driven to rotate synchronously with the input shaft by driving the first synchronizer, which in turn drives the second transmission gear to rotate synchronously with the input shaft. The second synchronizer is connected to the third transmission gear, which causes the support shaft to rotate synchronously with the third transmission gear, thereby enabling the vehicle to take off power.

[0026] By driving the first synchronizer to connect with the first transmission gear and the second synchronizer to disconnect from the third transmission gear, parking power take-off is achieved. The power take-off device shown in this application can simultaneously perform parking power take-off and driving power take-off functions, overcoming the shortcomings of existing technologies that can only achieve a single power take-off function. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0028] In the attached diagram:

[0029] Figure 1 A cross-sectional structural schematic diagram of a multifunctional vertical broken shaft power take-off device provided in an embodiment of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of a multifunctional vertical broken shaft power take-off device without a housing provided in one embodiment of the present utility model;

[0031] Figure 3 This is a schematic diagram of the structure of a multifunctional vertical broken shaft power take-off and its active lubrication system provided in one embodiment of the present invention.

[0032] Figure 4 This is a first-view structural schematic diagram of a multifunctional vertical broken-shaft power take-off unit with housing provided in one embodiment of the present utility model.

[0033] Figure 5 This is a second-view structural schematic diagram of a multifunctional vertical broken shaft power take-off unit with housing provided in one embodiment of the present invention.

[0034] The attached figures are labeled as follows:

[0035] Input shaft 1, first transmission gear 101, first engagement gear ring 101a, first splined hub 102, output shaft 2, second transmission gear 201, second engagement gear ring 202, first synchronizer 3, first shift fork 301, first splined sleeve 302, support shaft 4, idler gear 401, third transmission gear 402, third engagement gear ring 402a, second splined hub 403, second synchronizer 5, second shift fork 501, second splined sleeve 502, power take-off shaft 6, output gear 601, housing 7, housing body 701, housing cover 702, oil pump 8, branch oil passage 9, first branch 901, second branch 902, third branch 903, fourth branch 904, fifth branch 905, main oil passage 10, first bearing 11, second bearing 12, third bearing 13, fourth bearing 14, fifth bearing 15, sixth bearing 16. Detailed Implementation

[0036] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0039] Please combine Figures 1 to 5 As shown, this utility model provides a multifunctional vertical broken shaft power take-off and its active lubrication system.

[0040] In one exemplary embodiment of this application, the multifunctional vertical broken shaft power take-off includes:

[0041] Input shaft 1 is connected to the vehicle gearbox, and a first transmission gear 101 is rotatably mounted on input shaft 1;

[0042] The output shaft 2 is rotatably connected to the input shaft 1 and is used to transmit power to drive the vehicle. A second transmission gear 201 is fixedly provided on the output shaft 2.

[0043] The first synchronizer 3 is connected to the input shaft 1. The first synchronizer 3 can move along the axial direction of the input shaft 1 so that the first transmission gear 101 rotates synchronously with the input shaft 1, or so that the output shaft 2 rotates synchronously with the input shaft 1.

[0044] The support shaft 4 is used to install the idler wheel 401, which meshes with the first transmission gear 101. A third transmission gear 402 is rotatably mounted on the support shaft 4, which meshes with the second transmission gear 201.

[0045] The second synchronizer 5 is connected to the support shaft 4. The second synchronizer 5 can move along the axial direction of the support shaft 4 so that the support shaft 4 can be connected to or disconnected from the third transmission gear 402.

[0046] The power take-off shaft 6 is used to output power to drive the equipment. An output gear 601 is fixedly installed on the power take-off shaft 6, and the output gear 601 meshes with the idler gear 401.

[0047] In this embodiment, the output shaft 2 and the input shaft 1 are rotated synchronously by driving the first synchronizer 3, and the second synchronizer 5 is disconnected from the third transmission gear 402, thereby achieving the goal of driving without taking off power.

[0048] By driving the first synchronizer 3 to make the first transmission gear 101 rotate synchronously with the input shaft 1, and the second synchronizer 5 connected to the third transmission gear 402 to make the third transmission gear 402 rotate synchronously with the support shaft 4, the vehicle can take off power.

[0049] Alternatively, by driving the first synchronizer 3 to make the output shaft 2 rotate synchronously with the input shaft 1, the second transmission gear 201 will rotate synchronously with the input shaft 1. The second synchronizer 5 is connected to the third transmission gear 402, so that the support shaft 4 rotates synchronously with the third transmission gear 402, thereby realizing the vehicle power take-off.

[0050] By driving the first synchronizer 3 to connect with the first transmission gear 101 and the second synchronizer 5 to disconnect from the third transmission gear 402, parking power take-off is achieved. The power take-off device shown in this application can simultaneously perform parking power take-off and driving power take-off functions, solving the drawback of existing technologies that can only achieve a single power take-off function.

[0051] In an exemplary embodiment of this application, the first transmission gear 101 is provided with a first engagement gear ring 101a, the input shaft 1 is provided with a first splined hub 102, and the output shaft 2 is provided with a second engagement gear ring 202.

[0052] In an exemplary embodiment of this application, the first synchronizer 3 includes a first fork 301 and a first spline sleeve 302. The first spline sleeve 302 engages with the first spline hub 102. The first fork 301 is used to drive the first spline sleeve 302 to move axially along the input shaft 1, so that the first spline sleeve 302 engages simultaneously with the first engagement gear ring 101a and the first spline hub 102, or the first spline sleeve 302 engages simultaneously with the second engagement gear ring 202 and the first spline hub 102.

[0053] In this embodiment, the first spline sleeve 302 meshes with the first spline hub 102 on the input shaft 1, achieving synchronous rotation of the first spline sleeve 302 and the input shaft 1. The first shift fork 301 drives the first spline sleeve 302 to move axially along the input shaft 1, causing the first spline sleeve 302 to simultaneously mesh with the first spline hub 102 and the first engagement gear ring 101a on the first transmission gear 101, achieving synchronous rotation of the first transmission gear 101 and the input shaft 1. The first transmission gear 101 drives the idler wheel 401 to rotate, transferring kinetic energy to the output gear 601, which in turn drives the power take-off shaft 6 to rotate, thus achieving parking power take-off. The first shift fork 301 also drives the first spline sleeve 302 to move axially along the input shaft 1, causing the first spline sleeve 302 to simultaneously mesh with the first spline hub 102 and the second engagement gear ring 202 on the output shaft 2, causing the output shaft 2 to rotate synchronously with the input shaft 1, thereby driving the vehicle.

[0054] In an exemplary embodiment of this application, a second splined hub 403 is provided on the support shaft 4, and a third transmission gear 402 is provided with a third engagement gear ring 402a.

[0055] In an exemplary embodiment of this application, the second synchronizer 5 includes a second fork 501 and a second spline sleeve 502. The second spline sleeve 502 engages with the second spline hub 403. The second fork 501 is used to drive the second spline sleeve 502 to move axially along the support shaft 4, so that the second spline sleeve 502 engages with the third engagement gear ring 402a and the second spline hub 403 simultaneously, or disengages the second spline sleeve 502 from the third engagement gear ring 402a.

[0056] In this embodiment, the second spline sleeve 502 meshes with the second spline hub 403, so that the second spline sleeve 502 can rotate synchronously with the support shaft 4. The second fork 501 drives the second spline sleeve 502 to move axially along the support shaft 4, so that the second spline sleeve 502 meshes with the second spline hub 403 and the third engagement gear ring 402a provided on the third transmission gear 402, so that the third transmission gear 402 can drive the support shaft 4 to rotate or rotate with the support shaft 4.

[0057] When the first spline sleeve 302 meshes with the first spline hub 102 and the first engagement gear ring 101a simultaneously, and the second spline sleeve 502 does not mesh with the third engagement gear ring 402a, the first transmission gear 101 rotates synchronously with the input shaft 1, driving the idler gear 401 to rotate, which in turn drives the output gear 601 to rotate, driving the power take-off shaft 6 to rotate, thus realizing parking power take-off.

[0058] When the first spline sleeve 302 meshes with the first spline hub 102 and the first engagement gear ring 101a simultaneously, and the second spline sleeve 502 meshes with the second spline hub 403 and the third engagement gear ring 402a simultaneously, the first transmission gear 101 rotates synchronously with the input shaft 1, driving the idler gear 401 to rotate. The idler gear 401 drives the support shaft 4 to rotate. The third transmission gear 402 rotates with the support shaft 4, driving the second transmission gear 201 to rotate, which in turn drives the output shaft 2 to rotate, thus realizing the driving function. The idler gear 401 transmits power to the output gear 601, driving the output gear 601 to rotate, which in turn drives the power take-off shaft 6 to rotate, thus realizing the driving power take-off function.

[0059] When the first spline sleeve 302 engages with the first spline hub 102 and the second engagement gear ring 202 simultaneously, and the second spline sleeve 502 does not engage with the third engagement gear ring 402a, the output shaft 2 rotates synchronously with the input shaft 1, thereby achieving the effect of driving without taking off power.

[0060] When the first spline sleeve 302 meshes with the first spline hub 102 and the second engagement gear ring 202 simultaneously, and the second spline sleeve 502 meshes with the second spline hub 403 and the third engagement gear ring 402a simultaneously, the second transmission gear 201 rotates with the input shaft 1, driving the output shaft 2 to rotate, thus realizing the vehicle's movement. The second transmission gear 201 drives the third transmission gear 402 to rotate, the third transmission gear 402 drives the support shaft 4 to rotate, the support shaft 4 drives the idler gear 401 to rotate, the idler gear 401 transmits power to the output gear 601, and the output gear 601 drives the power take-off shaft 6 to rotate, thus realizing the vehicle's power take-off.

[0061] In an exemplary embodiment of this application, a housing 7 is also included. The housing 7 includes a body 701 and a cover 702. The body 701 has an opening on one side along the width direction for installing a multi-functional vertical broken shaft power take-off unit. The cover 702 is connected to the body 701 by bolts.

[0062] In this embodiment, the opening is located on one side of the housing 701 along the width direction, that is, the side with a larger area of ​​the housing 701, so that the housing 701 has a larger installation entrance, which makes it convenient for operators to install the power take-off. Operators can assemble the shaft system and the shifting system and install them into the housing 701, and then connect the housing cover 702 to the housing 701 with bolts to close the opening.

[0063] In an exemplary embodiment of this application, an oil sump is provided inside the housing 701, and a sealing component is provided between the housing 701 and the housing cover 702. The sealing component is used to seal the connection gap between the housing 701 and the housing cover 702.

[0064] In this embodiment, by providing a sealing component in the connection gap between the housing 701 and the cover 702, the gap after the housing 701 and the cover 702 are connected can be effectively sealed, and the leakage of lubricating oil in the oil sump of the housing 701 can be avoided.

[0065] This utility model also provides an active lubrication system, which is applied to the multifunctional vertical broken shaft power take-off as described above.

[0066] In one exemplary embodiment of this application, the active lubrication system includes:

[0067] Oil pump 8 is mounted on housing 701, and the drive shaft of oil pump 8 is coaxially arranged and connected with support shaft 4;

[0068] The lubrication circuit includes a main oil circuit 10 and a branch oil circuit 9. The main oil circuit 10 is connected between the oil sump and the oil pump 8, and the branch oil circuit 9 is connected to the oil pump 8. The branch oil circuit 9 is used to lubricate the multi-functional vertical broken shaft power take-off unit.

[0069] In this embodiment, the driving force of the oil pump 8 is provided by the support shaft 4. The oil pump 8 only operates when the vehicle is in a power take-off state. Since the output gear 601 is located at a high position in the housing 7, the lubrication effect of the output gear 601 is poor due to splash lubrication alone. By setting an active lubrication system, the lubrication effect of the output gear 601 can be effectively improved. Furthermore, when power take-off is not required, the oil pump 8 does not operate, so there is no need to share the vehicle's driving power. The oil pump 8 pumps the lubricating oil in the oil sump into the main oil circuit 10, and then delivers it to the branch oil circuit 9. The branch oil circuit 9 delivers the lubricating oil to the locations of the power take-off that require lubrication, providing active lubrication for each component of the power take-off, effectively improving the lubrication performance of the power take-off. The lubricated oil falls back into the oil sump under the action of gravity, thereby realizing oil circuit circulation.

[0070] In an exemplary embodiment of this application, a first bearing 11 is provided between the power take-off shaft 6 and the housing 701, and a second bearing 12 is provided between the power take-off shaft 6 and the housing cover 702; a third bearing 13 is provided between the support shaft 4 and the housing 701, and a fourth bearing 14 is provided between the support shaft 4 and the housing cover 702; a fifth bearing 15 is provided between the output shaft 2 and the housing 701; and a sixth bearing 16 is provided between the input shaft 1 and the housing cover 702.

[0071] In an exemplary embodiment of this application, the branch oil passage 9 includes a first branch 901, a second branch 902, a third branch 903, a fourth branch 904, and a fifth branch 905. The first branch 901 is used to lubricate the third bearing 13; the second branch 902 is used to lubricate the first bearing 11; the third branch 903 is used to lubricate the output gear 601; the fourth branch 904 is used to lubricate the second bearing 12; and the fifth branch 905 is used to lubricate the fourth bearing 14.

[0072] In this embodiment, the bearings and output gear 601 are forcibly lubricated by the corresponding branch oil passage 9, which effectively ensures the lubrication effect of each component. Since the fifth bearing 15 and the sixth bearing 16 are located at a low position and are even immersed in the oil sump, the lubrication of the fifth bearing 15 and the sixth bearing 16 can be achieved by splash lubrication. Therefore, there is no need to set up an additional branch oil passage 9 to forcibly lubricate the fifth bearing 15 and the sixth bearing 16.

[0073] Working principle: By driving the first synchronizer 3 to make the output shaft 2 rotate synchronously with the input shaft 1, the second synchronizer 5 is disconnected from the third transmission gear 402, thereby realizing that the vehicle does not take off power.

[0074] By driving the first synchronizer 3 to make the first transmission gear 101 rotate synchronously with the input shaft 1, and the second synchronizer 5 connected to the third transmission gear 402 to make the third transmission gear 402 rotate synchronously with the support shaft 4, the vehicle can take off power.

[0075] Alternatively, by driving the first synchronizer 3 to make the output shaft 2 rotate synchronously with the input shaft 1, the second transmission gear 201 will rotate synchronously with the input shaft 1. The second synchronizer 5 is connected to the third transmission gear 402, so that the support shaft 4 rotates synchronously with the third transmission gear 402, thereby realizing the vehicle power take-off.

[0076] By driving the first synchronizer 3 to connect with the first transmission gear 101 and the second synchronizer 5 to disconnect from the third transmission gear 402, parking power take-off is achieved. The power take-off device shown in this application can simultaneously perform parking power take-off and driving power take-off functions, solving the drawback of existing technologies that can only achieve a single power take-off function.

[0077] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multifunctional vertical broken shaft power take-off, characterized in that, include: An input shaft is connected to the vehicle's gearbox, and a first transmission gear is rotatably mounted on the input shaft. An output shaft is rotatably connected to the input shaft and is used to transmit power to drive the vehicle. A second transmission gear is fixedly provided on the output shaft. A first synchronizer is connected to the input shaft. The first synchronizer can move along the axial direction of the input shaft to make the first transmission gear rotate synchronously with the input shaft, or to make the output shaft rotate synchronously with the input shaft. A support shaft is used to mount an idler gear, which meshes with the first transmission gear. A third transmission gear is rotatably mounted on the support shaft, and the third transmission gear meshes with the second transmission gear. A second synchronizer is connected to the support shaft. The second synchronizer can move along the axial direction of the support shaft to connect or disconnect the support shaft from the third transmission gear. A power take-off shaft is used to output power to drive the equipment. An output gear is fixedly mounted on the power take-off shaft, and the output gear meshes with the idler gear.

2. The multifunctional vertical broken shaft power take-off according to claim 1, characterized in that: The first transmission gear is provided with a first engagement gear ring, the input shaft is provided with a first splined hub, and the output shaft is provided with a second engagement gear ring.

3. The multifunctional vertical broken shaft power take-off according to claim 2, characterized in that: The first synchronizer includes a first shift fork and a first spline sleeve. The first spline sleeve engages with the first spline hub. The first shift fork is used to drive the first spline sleeve to move axially along the input shaft so that the first spline sleeve engages simultaneously with the first engagement gear ring and the first spline hub, or so that the first spline sleeve engages simultaneously with the second engagement gear ring and the first spline hub.

4. The multifunctional vertical broken shaft power take-off according to claim 1, characterized in that: The support shaft is provided with a second splined hub, and the third transmission gear is provided with a third engagement gear ring.

5. The multifunctional vertical broken shaft power take-off according to claim 4, characterized in that: The second synchronizer includes a second fork and a second spline sleeve. The second spline sleeve engages with the second spline hub. The second fork is used to drive the second spline sleeve to move axially along the support shaft, so that the second spline sleeve engages with the third engagement gear ring and the second spline hub simultaneously, or disengages the second spline sleeve from the third engagement gear ring.

6. The multifunctional vertical broken shaft power take-off according to claim 1, characterized in that: It also includes a housing, which comprises a body and a cover. The body has an opening on one side along its width for mounting the multi-functional vertical broken shaft power take-off. The cover is bolted to the body.

7. The multifunctional vertical broken shaft power take-off according to claim 6, characterized in that: An oil sump is provided inside the shell, and a sealing component is provided between the shell and the shell cover. The sealing component is used to seal the connection gap between the shell and the shell cover.

8. An active lubrication system, applied to the multifunctional vertical broken shaft power take-off as described in claim 7, characterized in that: The active lubrication system includes: An oil pump is mounted on the housing, and the drive shaft of the oil pump is coaxially arranged and connected with the support shaft; The lubrication circuit includes a main oil circuit and branch oil circuits. The main oil circuit is connected between the oil sump and the oil pump, and the branch oil circuits are connected to the oil pump. The branch oil circuits are used to lubricate the multifunctional vertical broken shaft power take-off unit.

9. The active lubrication system according to claim 8, characterized in that: A first bearing is provided between the power take-off shaft and the housing body, and a second bearing is provided between the power take-off shaft and the housing cover; a third bearing is provided between the support shaft and the housing body, and a fourth bearing is provided between the support shaft and the housing cover; a fifth bearing is provided between the output shaft and the housing body; and a sixth bearing is provided between the input shaft and the housing cover.

10. The active lubrication system according to claim 9, characterized in that: The branch oil circuit includes a first branch, a second branch, a third branch, a fourth branch, and a fifth branch. The first branch is used to lubricate the third bearing; the second branch is used to lubricate the first bearing; the third branch is used to lubricate the output gear; the fourth branch is used to lubricate the second bearing; and the fifth branch is used to lubricate the fourth bearing.

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