Parallel operation transfer case

Abstract

The utility model relates to the technical field of transfer cases, in particular to a parallel operation transfer case which comprises a transfer case body, and an input shaft and a controllably connected gear pair are arranged in the transfer case body. The intermediate shaft is connected with the input shaft through a gear pair; the winch output shaft is controllably connected with the gear pair and is connected with the intermediate shaft through the gear pair; and the turntable output shaft is controllably connected with the gear pair and is connected with the winch output shaft through the gear pair. Through different combinations and adjustment of the input shaft, the intermediate shaft, the winch output shaft, the turntable output shaft and the gear pair, power distribution and switching are flexibly controlled, different output modes of the transfer case can be achieved, and the flexibility and the adaptive capacity of the transfer case are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer cases, and particularly relates to a parallel transfer case. Background Art

[0002] A transfer case is an important component in a transmission system, which is used to distribute power from a single input source to multiple output shafts to meet different power transmission requirements. The transfer case is mainly applied to mechanical equipment that requires multiple power outputs and usually includes a housing, multiple gear pairs, and a control mechanism. The transfer cases in the prior art usually only have a single preset working mode, with poor flexibility, unable to provide different functional outputs according to requirements, and poor adaptability. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a parallel transfer case to solve the above technical problems;

[0004] The technical problems solved by the utility model can be realized by adopting the following technical solutions:

[0005] A parallel transfer case includes a transfer case housing, and is provided with inside the transfer case housing

[0006] An input shaft, controllably connected to a gear pair;

[0007] An intermediate shaft, connected to the input shaft through the gear pair;

[0008] A winch output shaft, controllably connected to the gear pair and connected to the intermediate shaft through the gear pair;

[0009] A rotary table output shaft, controllably connected to the gear pair and connected to the winch output shaft through the gear pair.

[0010] Preferably, the gear pair includes

[0011] A first gear pair, the input shaft is controllably connected to the first gear pair and connected to the intermediate shaft through the first gear pair;

[0012] A second gear pair, the winch output shaft is controllably connected to the second gear pair and connected to the intermediate shaft through the second gear pair;

[0013] A third gear pair, the rotary table output shaft is controllably connected to the third gear pair and connected to the winch output shaft through the third gear pair.

[0014] Preferably, the input shaft includes a first input shaft and a second input shaft symmetrically arranged on both sides of the winch output shaft, and the intermediate shaft includes a first intermediate shaft and a second intermediate shaft symmetrically arranged, the first intermediate shaft is located between the first input shaft and the winch output shaft, and the second intermediate shaft is located between the second input shaft and the winch output shaft.

[0015] Preferably, the sides of the input shaft, the winch output shaft and the turntable output shaft are each provided with a fork mechanism for controlling the connection between the corresponding input shaft, the winch output shaft and the turntable output shaft and the gear pair, and each of the fork mechanisms has the same structure, including:

[0016] a shift fork rod, movably connected to a shift fork bracket located on the transfer case body;

[0017] A push rod, wherein a first end of the push rod is provided with a connector, the connector is connected to the first end of the shift fork rod, and the push rod is driven to reciprocate along an axial direction by shifting the second end of the shift fork rod with the connection point of the shift fork rod and the shift fork bracket as a fulcrum;

[0018] The spline wheel is slidably provided on the shaft body of the input shaft or the winch output shaft or the turntable output shaft and is connected to the shift fork provided on the second end of the push rod. The spline wheel is engaged with the gear pair based on the push rod moving in the direction close to the shaft body, or the spline wheel is disengaged from the gear pair based on the push rod moving in the direction away from the shaft body.

[0019] Preferably, a connecting hole is provided on the fork rod, and the fork rod is connected to the connecting head and the fork bracket via a connecting pin passing through the connecting hole, and shaft retaining rings are provided on both sides of the connecting pin.

[0020] Preferably, the second end of the shift fork rod is provided with a handle for shifting the shift fork rod.

[0021] Preferably, each of the fork mechanisms is further connected to a fixing mechanism for limiting the fork rod, and the fixing mechanism includes:

[0022] A fixing bracket connected to the transfer case body and located on one side of the shift fork rod, wherein the fixing bracket is provided with a plurality of fixing holes corresponding to the moving positions of the shift fork rod;

[0023] a latch sleeve connected to a side of the fixing bracket away from the shift fork rod;

[0024] a spring, compressibly disposed in the latch sleeve;

[0025] A latch pin is inserted into the latch sleeve and extends out of the fixing hole, and is movably located on the moving path of the shift fork rod.

[0026] Preferably, the bolt includes

[0027] a bolt post, the first end of the bolt post is arranged in the bolt sleeve, the second end of the bolt post extends out from the side of the bolt sleeve away from the fixed bracket, the spring is arranged on the periphery of the bolt post, the first end of the spring is connected to the inner side wall of the bolt sleeve on the side away from the fixed bracket, and the second end of the spring is connected to the end of the first end of the bolt post;

[0028] a bolt head, connected to the second end of the bolt post and extending out from the fixing hole, and the bolt head is driven by the bolt post to be movably located on the moving path of the fork rod.

[0029] Preferably, a handle ball for pulling the bolt post is arranged at the first end of the bolt post.

[0030] Preferably, the transfer case body includes an upper case body and a lower case body. The input shaft, the intermediate shaft and the winch output shaft are horizontally distributed in the upper case body. The winch output shaft is located at the middle position of the upper case body. The turntable output shaft is arranged in the lower case body and is located below the winch output shaft.

[0031] Advantages of the present utility model: Due to the adoption of the above technical solutions, through different combinations and adjustments of the input shaft, the intermediate shaft, the winch output shaft and the turntable output shaft with the gear pairs, the present utility model can flexibly control the power distribution and switching, and can realize different output modes of the transfer case, improving the flexibility and adaptability of the transfer case. Description of the Drawings

[0032] Figure 1 is a schematic diagram of the external structure of the parallel-connected transfer case in the embodiment of the present utility model;

[0033] Figure 2 is a broken line cross-sectional view of the parallel-connected transfer case in the embodiment of the present utility model;

[0034] Figure 3 is a partial enlarged view of the fork mechanism in the embodiment of the present utility model;

[0035] Figure 4 is a partial enlarged view of the fixing mechanism in the embodiment of the present utility model.

[0036] In the attached drawings: 1. Input shaft; 11. First input shaft; 12. Second input shaft; 2. Intermediate shaft; 21. First intermediate shaft; 22. Second intermediate shaft; 3. Winch output shaft; 4. Rotary table output shaft; 5. Gear pair; 51. First gear pair; 52. Second gear pair; 53. Third gear pair; 6. Transfer case housing; 61. Upper housing; 62. Lower housing; 7. Fork mechanism; 71. First fork mechanism; 72. Second fork mechanism; 73. Third fork mechanism; 74. Fourth fork mechanism; 701. Fork rod; 702. Fork support; 703. Push rod; 704. Connector; 705. Nut; 706. Fork; 707. Spline wheel; 708. Handle; 8. Fixing mechanism; 801. Fixing bracket; 802. Fixing hole; 803. Pin sleeve; 804. Pin; 805. Pin post; 806. Pin head; 807. Spring; 808. Handle ball; 809. Connecting pin; 810. Shaft retaining ring. Detailed implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0038] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not limited to the present invention.

[0040] A combined drive transfer case, as Figures 1 to 4 shown, includes a transfer case housing 6, and disposed within the transfer case housing 6 are

[0041] an input shaft 1, controllably connected to a gear pair 5;

[0042] an intermediate shaft 2, connected to the input shaft 1 through a gear pair 5;

[0043] a winch output shaft 3, controllably connected to a gear pair 5 and connected to the intermediate shaft 2 through a gear pair 5;

[0044] a rotary table output shaft 4, controllably connected to a gear pair 5 and connected to the winch output shaft 3 through a gear pair 5.

[0045] Specifically, the present invention provides a transfer case for parallel vehicles. Through its unique design and multifunctionality, it provides an efficient, flexible, and adaptable solution for modern mechanical transmission systems. The design achieves different functional outputs through the appropriate shifting of the shift fork 706 according to different working requirements.

[0046] In a preferred embodiment, the gear pair 5 includes:

[0047] The first gear pair 51, the input shaft 1 is controllably connected to the first gear pair 51, and is connected to the intermediate shaft 2 through the first gear pair 51;

[0048] The second gear pair 52, the winch output shaft 3 is controllably connected to the second gear pair 52, and is connected to the intermediate shaft 2 through the second gear pair 52;

[0049] The third gear pair 535 , the turntable output shaft 4 is controllably connected to the third gear pair 535 , and is connected to the winch output shaft 3 through the third gear pair 535 .

[0050] Specifically, the utility model is provided with a fork mechanism 7 at the input shaft 1, the winch output shaft 3 and the turntable output shaft 4. The fork mechanism 7 is used to respectively control the corresponding input shaft 1, the winch output shaft 3 and the turntable output shaft 4 to connect to the gear pair 5. In this embodiment, by shifting the fork rod 701 of the fork mechanism 7 to the first gear position, the corresponding input shaft 1, the winch output shaft 3 and the turntable output shaft 4 are controlled to connect to the gear pair 5; by shifting the fork rod 701 of the fork mechanism 7 to the second gear position, the corresponding input shaft 1, the winch output shaft 3 and the turntable output shaft 4 are controlled to be disconnected from the gear pair 5.

[0051] In a preferred embodiment, the input shaft 1 includes a first input shaft 11 and a second input shaft 12 symmetrically arranged on both sides of the winch output shaft 3, and the intermediate shaft 2 includes a first intermediate shaft 21 and a second intermediate shaft 22 symmetrically arranged, the first intermediate shaft 21 is located between the first input shaft 11 and the winch output shaft 3, and the second intermediate shaft 22 is located between the second input shaft 12 and the winch output shaft 3.

[0052] In a preferred embodiment, the sides of the input shaft 1, the winch output shaft 3 and the turntable output shaft 4 are each provided with a fork mechanism 7 for controlling the connection between the corresponding input shaft 1, the winch output shaft 3 and the turntable output shaft 4 and the gear pair 5. Each fork mechanism 7 has the same structure, including:

[0053] The shift fork rod 701 is movably connected to the shift fork bracket 702 located on the transfer case body 6;

[0054] A push rod 703 is provided with a connector 704 at the first end thereof, the connector 704 being connected to the first end of the shift fork rod 701. The second end of the shift fork rod 701 is driven to reciprocate along an axial direction by moving the second end of the shift fork rod 701, with the connection point between the shift fork rod 701 and the shift fork bracket 702 serving as a fulcrum.

[0055] The spline wheel 707 is slidably arranged on the shaft body of the input shaft 1 or the winch output shaft 3 or the turntable output shaft 4 and is connected to the fork 706 arranged at the second end of the push rod 703. The spline wheel 707 is engaged with the gear pair 5 based on the push rod 703 moving in the direction close to the shaft body, or is disengaged from the gear pair 5 based on the push rod 703 moving in the direction away from the shaft body.

[0056] Specifically, the present invention is provided with four fork mechanisms 7, including a first fork mechanism 71 for controlling the connection of the first input shaft 11, a second fork mechanism 72 for controlling the connection of the second input shaft 12, a third fork mechanism 737 for controlling the connection of the winch output shaft 3, and a fourth fork mechanism 74 for controlling the connection of the turntable output shaft 4;

[0057] By shifting the shift fork rod 701 of the first shift fork mechanism 71 toward the side away from the first input shaft 11, the shift fork rod 701 is shifted to the first gear position, causing the push rod 703 to move along the axis of the first input shaft 11 toward the first input shaft 11. At this time, the spline wheel 707 connected to the second end of the push rod 703 is meshed with the spline portion of the first gear pair 51, so that power can be transmitted from the first input shaft 11 to the first intermediate shaft 21 through the first gear pair 51.

[0058] Furthermore, by shifting the shift fork rod 701 of the first shift fork mechanism 71 toward the side close to the first input shaft 11, the shift fork rod 701 is shifted to the second gear position, so that the push rod 703 moves away from the first input shaft 11 along the axial direction of the first input shaft 11. At this time, the spline wheel 707 connected to the second end of the push rod 703 is disengaged from the first gear pair 51, and power transmission by the first input shaft 11 is stopped.

[0059] By shifting the shift fork rod 701 of the second shift fork mechanism 72 toward the side away from the second input shaft 12 and shifting the shift fork rod 701 to the first gear position, the push rod 703 moves along the axis of the second input shaft 12 toward the second input shaft 12. At this time, the spline wheel 707 connected to the second end of the push rod 703 is meshed with the first gear pair 51, so that power can be transmitted from the second input shaft 12 to the second intermediate shaft 22 through the first gear pair 51.

[0060] Further, by moving the fork rod 701 of the second fork mechanism 72 toward the side close to the second input shaft 12 and shifting the fork rod 701 to the second gear position, the push rod 703 moves away from the second input shaft 12 along the axis direction of the second input shaft 12. At this time, the spline wheel 707 connected to the second end of the push rod 703 disengages from the first gear pair 51, and the power transmission executed by the second input shaft 12 stops.

[0061] By moving the fork rod 701 of the third fork mechanism 737 toward the side away from the winch output shaft 3 and shifting the fork rod 701 to the first gear position, the push rod 703 moves close to the winch output shaft 3 along the axis direction of the winch output shaft 3. At this time, the spline wheel 707 connected to the second end of the push rod 703 is meshed and connected with the second gear pair 52, so that the winch output shaft 3 receives the power from the first intermediate shaft 21 or the second intermediate shaft 22 through the second gear pair 52, thereby realizing the power output of the winch.

[0062] Further, by moving the fork rod 701 of the third fork mechanism 737 toward the side close to the winch output shaft 3 and shifting the fork rod 701 to the second gear position, the push rod 703 moves away from the winch output shaft 3 along the axis direction of the winch output shaft 3. At this time, the spline wheel 707 connected to the second end of the push rod 703 disengages from the second gear pair 52, and the power transmission to the winch output shaft 3 stops.

[0063] By moving the fork rod 701 of the fourth fork mechanism 74 toward the side away from the turntable output shaft 4 and shifting the fork rod 701 to the first gear position, the push rod 703 moves close to the turntable output shaft 4 along the axis direction of the turntable output shaft 4. At this time, the spline wheel 707 connected to the second end of the push rod 703 is meshed and connected with the third gear pair 535, so that the turntable output shaft 4 receives the power from the winch output shaft 3 through the third gear pair 535, thereby realizing the dual-output function of the winch and the turntable.

[0064] Further, by moving the fork rod 701 of the fourth fork mechanism 74 toward the side close to the turntable output shaft 4 and shifting the fork rod 701 to the second gear position, the push rod 703 moves away from the turntable output shaft 4 along the axis direction of the turntable output shaft 4. At this time, the spline wheel 707 connected to the second end of the push rod 703 disengages from the third gear pair 535, and the power transmission to the turntable output shaft 4 stops.

[0065] In the utility model, the axes of the respective shafts of the input shaft 1, the intermediate shaft 2, the winch output shaft 3, and the turntable output shaft 4 are all arranged parallel to each other.

[0066] Through the connection and transmission of the above gear pair 5, the one-in-one-out function of the speed reducer is realized, that is, one input end drives one output end; the one-in-two-out function of the speed reducer is realized, that is, one input end drives two output ends.

[0067] In a preferred embodiment, a connecting hole is provided on the fork rod 701, and the fork rod 701 is connected to the connecting head 704 and the fork bracket 702 via a connecting pin 809 passing through the connecting hole, and shaft retaining rings 808 are provided on both sides of the connecting pin 809.

[0068] Specifically, the rod body portion of the fork rod 701 is connected by a connecting pin 809 passing through the fork bracket 702 and the fork rod 701, the connecting head 704 is connected to the first end of the push rod 703 through a nut 705, and the connection is achieved by passing the connecting pin 809 through the connecting head 704 and the fork bracket 702, and the shaft retaining ring 808 serves as a reinforcement.

[0069] In a preferred embodiment, the second end of the fork lever 701 is provided with a handle 708 for moving the fork lever 701 .

[0070] In a preferred embodiment, each fork mechanism 7 is further connected to a fixing mechanism 8 for limiting the fork rod 701. The fixing mechanism 8 includes:

[0071] A fixing bracket 801 is connected to the transfer case body 6 and is located on one side of the shift fork rod 701. The fixing bracket 801 is provided with a plurality of fixing holes 802 corresponding to the moving positions of the shift fork rod 701.

[0072] The latch sleeve 803 is connected to the side of the fixed bracket 801 away from the shift fork rod 701;

[0073] Spring 807, compressibly disposed within latch sleeve 803;

[0074] The latch pin 804 is inserted into the latch sleeve 803 and extends out from the fixing hole 802 , and is movably located on the moving path of the shift fork rod 701 .

[0075] Specifically, two fixing holes 802 are provided on the fixing bracket 801. When the shift fork lever 701 is shifted to the first gear position, a latch 804 extends from the fixing hole 802 close to the shaft body and is stuck in the path of the shift fork lever 701 moving toward the corresponding shaft body, thereby preventing the shift fork lever 701 from moving toward the shaft body, so that the shift fork lever 701 remains in the first gear position.

[0076] When the fork lever 701 is shifted to the second gear, the latch 804 extends from the fixing hole 802 away from the shaft body and is stuck in the path of the fork lever 701 moving away from the corresponding shaft body, preventing the fork lever 701 from moving away from the shaft body, so that the fork lever 701 remains in the second gear.

[0077] In a preferred embodiment, the latch 804 includes,

[0078] The latch post 805 has its first end disposed within the latch sleeve 803, and the second end of the latch post 805 extends from the side of the latch sleeve 803 away from the fixed bracket 801. A spring 807 is disposed on the circumferential side of the latch post 805. The first end of the spring 807 is connected to the inner side wall of the side of the latch sleeve 803 away from the fixed bracket 801, and the second end of the spring 807 is connected to the end of the first end of the latch post 805;

[0079] The latch head 806 is connected to the second end of the latch post 805 and extends out of the fixing hole 802, and the latch head 806 is driven by the latch post 805 to be movably located on the moving path of the fork lever 701.

[0080] In a preferred embodiment, a handle ball 808 for pulling the latch post 805 is provided at the first end of the latch post 805.

[0081] Specifically, by pulling the handle ball 808, the end of the latch post 805 compresses the spring 807, so that the latch post 805 drives the latch head 806 to leave the moving path of the fork lever 701. At this time, the fork lever 701 is toggled to realize the gear shift of the toggling mechanism. After the fork lever 701 is toggled to the required gear position, the handle ball 808 is released. At this time, the elastic force of the spring 807 pushes the end of the second end of the latch post 805 towards the fixed bracket 801, driving the latch head 806 to be stuck on the moving path of the fork lever 701 to achieve the locking effect.

[0082] In a preferred embodiment, the transfer case housing 6 includes an upper housing 61 and a lower housing 62. The input shaft 1, the intermediate shaft 2, and the winch output shaft 3 are horizontally distributed within the upper housing 61. The winch output shaft 3 is located at the middle position of the upper housing 61. The turntable output shaft 4 is disposed within the lower housing 62 and is located below the winch output shaft 3.

[0083] Specifically, the input end of the present invention is located on the left and right sides of the transfer case housing 6, facilitating connection to an external power source and providing flexibility in connection. The output shaft of the reducer is located in the middle and lower sides of the housing, enabling power to be conveniently transmitted to different working mechanisms.

[0084] The above description is only a preferred embodiment of the present invention, and does not thereby limit the implementation manner and protection scope of the present invention. For those skilled in the art, it should be understood that any equivalent replacement and obvious changes made by using the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A parallel operation and power take-off box, characterized in that, It includes a transfer case body (6), wherein the transfer case body (6) is provided with: An input shaft (1) controllably connected to a gear pair (5); an intermediate shaft (2) connected to the input shaft (1) via the gear pair (5); A winch output shaft (3) is controllably connected to the gear pair (5), and is connected to the intermediate shaft (2) via the gear pair (5); The turntable output shaft (4) is controllably connected to the gear pair (5), and is connected to the winch output shaft (3) via the gear pair (5).

2. The paralleling and power splitting gearbox according to claim 1, characterized in that, The gear pair (5) comprises: a first gear pair (51), the input shaft (1) being controllably connected to the first gear pair (51), and connected to the intermediate shaft (2) via the first gear pair (51); a second gear pair (52), the winch output shaft (3) being controllably connected to the second gear pair (52), and connected to the intermediate shaft (2) via the second gear pair (52); A third gear pair (53), the turntable output shaft (4) is controllably connected to the third gear pair (53), and is connected to the winch output shaft (3) via the third gear pair (53).

3. The paralleling and power dividing gearbox according to claim 1, characterized in that, The input shaft (1) comprises a first input shaft (11) and a second input shaft (12) symmetrically arranged on both sides of the winch output shaft (3); the intermediate shaft (2) comprises a first intermediate shaft (21) and a second intermediate shaft (22) symmetrically arranged, wherein the first intermediate shaft (21) is located between the first input shaft (11) and the winch output shaft (3), and the second intermediate shaft (22) is located between the second input shaft (12) and the winch output shaft (3).

4. The paralleling and power splitting gearbox according to claim 1, characterized in that, The sides of the input shaft (1), the winch output shaft (3) and the turntable output shaft (4) are all provided with a shift fork mechanism (7) for controlling the connection between the corresponding input shaft (1), the winch output shaft (3) and the turntable output shaft (4) and the gear pair (5). Each shift fork mechanism (7) has the same structure, including: A shift fork rod (701) is movably connected to a shift fork bracket (702) located on the transfer case body (6); A push rod (703), wherein a first end of the push rod (703) is provided with a connector (704), wherein the connector (704) is connected to a first end of the shift fork rod (701), and the second end of the shift fork rod (701) is driven to reciprocate along an axial direction by using a connection point between the shift fork rod (701) and the shift fork bracket (702) as a fulcrum; The spline wheel (707) is slidably arranged on the shaft of the input shaft (1) or the winch output shaft (3) or the turntable output shaft (4) and is connected to the shift fork (706) arranged at the second end of the push rod (703). The spline wheel (707) is engaged with the gear pair (5) based on the push rod (703) moving in a direction close to the shaft, or the spline wheel (707) is disengaged from the gear pair (5) based on the push rod (703) moving in a direction away from the shaft.

5. The paralleling and power splitting gearbox according to claim 4, characterized in that, The shift fork rod (701) is provided with a connecting hole, and the shift fork rod (701) is connected to the connecting head (704) and the shift fork bracket (702) via a connecting pin (809) passing through the connecting hole, and shaft retaining rings (810) are provided on both sides of the connecting pin (809).

6. The paralleling and power dividing gearbox according to claim 4, characterized in that, The second end of the shift fork rod (701) is provided with a handle (708) for shifting the shift fork rod (701).

7. The paralleling and power splitting gearbox according to claim 4, characterized in that, Each of the shift fork mechanisms (7) is further connected to a fixing mechanism (8) for limiting the shift fork rod (701), and the fixing mechanism (8) includes: A fixed bracket (801) is connected to the transfer case body (6) and is located on one side of the shift fork rod (701). The fixed bracket (801) is provided with a plurality of fixing holes (802) corresponding to the moving positions of the shift fork rod (701); A latch sleeve (803) connected to a side of the fixing bracket (801) away from the shift fork rod (701); a spring (807) compressibly disposed within the latch sleeve (803); The latch pin (804) is inserted into the latch pin sleeve (803) and extends out from the fixing hole (802), and is movably located on the moving path of the shift fork rod (701).

8. The paralleling and power-dividing gearbox according to claim 7, characterized in that, The latch (804) includes, A latch post (805), wherein the first end of the latch post (805) is disposed in the latch sleeve (803), the second end of the latch post (805) extends from a side of the latch sleeve (803) away from the fixed bracket (801), the spring (807) is disposed on a peripheral side of the latch post (805), the first end of the spring (807) is connected to the inner side wall of the latch sleeve (803) away from the fixed bracket (801), and the second end of the spring (807) is connected to the end of the first end of the latch post (805); The latch head (806) is connected to the second end of the latch column (805) and extends from the fixing hole (802). The latch head (806) is driven by the latch column (805) to be movably located on the moving path of the shift fork rod (701).

9. The paralleling and power splitting gearbox according to claim 8, wherein, The first end of the latch post (805) is provided with a handle ball (808) for pulling the latch post (805).

10. The paralleling and power splitting gearbox according to claim 1, characterized in that, The transfer case (6) comprises an upper case (61) and a lower case (62); the input shaft (1), the intermediate shaft (2) and the winch output shaft (3) are laterally distributed in the upper case (61); the winch output shaft (3) is located in the middle of the upper case (61); and the turntable output shaft (4) is arranged in the lower case (62) and below the winch output shaft (3).

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