CN207514160U - A kind of new spatial parallel axis system transfer case - Google Patents

Abstract

The utility model discloses a novel space parallel shaft system transfer case, which comprises an upper cover and a lower case body, the lower case body is equipped with a power input shaft, a transition shaft, a first output shaft and a second output shaft, and each shaft is They are spatially parallel, and the first output shaft and the second output shaft are distributed in parallel in the first horizontal plane, the power input shaft and the transition shaft are distributed in parallel in the second horizontal plane, and the height of the first horizontal plane is higher than that of the second horizontal plane. The height of the horizontal plane, the distance between the first output shaft and the second output shaft is greater than the distance between the power input shaft and the transition shaft; the fixed gear is installed on the power input shaft, the intermediate wheel is installed on the transition shaft, and the first output shaft is equipped with The first sliding gear is installed, and the second output shaft is equipped with the second sliding gear; the first shift fork and the second shift fork are installed in the upper cover. The utility model reduces the size of the transfer case through the staggered arrangement of each shaft in space, makes the structure of the transfer case more compact, and reduces the overall weight of the transfer case.

Description

A New Spatial Parallel Shaft Transfer Case

technical field

The utility model relates to the field of mechanical transmission equipment, in particular to a transfer case on a special vehicle, in particular to a novel space parallel shaft system transfer case.

Background technique

A transfer case is a device that can redistribute the power output by the engine to drive other equipment. In the field of construction machinery, the power output by the diesel engine can drive hydraulic pumps, water pumps, generators and other equipment through the transfer case, so as to realize the walking function of construction machinery and complete corresponding engineering operations.

In the field of construction machinery, it is often seen that it is necessary to realize the walking function and the equipment driving function at the same time. The transfer case in the prior art generally has defects such as complex structure, bulky volume, long processing cycle, and difficult assembly and disassembly. Therefore, its use and maintenance costs are relatively high. high.

Contents of the invention

The technical problem to be solved by the utility model is to provide a new type of space-parallel shaft transfer case with small volume, compact structure, simple operation, convenient maintenance, and time-sharing of power, aiming at the present situation of the above-mentioned prior art.

The technical solution adopted by the utility model to solve the problems of the technologies described above is:

A new type of space-parallel shaft system transfer case, including upper and lower matching upper cover and lower case, the lower case is equipped with a power input shaft, a transition shaft and a power output shaft that can be connected with power equipment, and the power output shaft includes The first output shaft and the second output shaft that redistribute the power input by the power input shaft, the power input shaft, the transition shaft, the first output shaft and the second output shaft are parallel in space, and the first output shaft and the second output shaft The two output shafts are parallel and symmetrically distributed in the first horizontal plane, the power input shaft and the transition shaft are parallel and symmetrically distributed in the second horizontal plane, the height of the first horizontal plane is higher than the height of the second horizontal plane, the first output shaft and the second horizontal plane The distance between the two output shafts is greater than the distance between the power input shaft and the transition shaft; a fixed gear is installed on the power input shaft, an intermediate wheel meshing with the fixed gear is installed on the transition shaft, and the first output shaft can be slidably fitted There is a first sliding gear, and the second output shaft is slidably equipped with a second sliding gear; the upper cover is equipped with a device for moving the first sliding gear to slide and mesh with the fixed gear to realize the power between the power input shaft and the first output shaft. The first shift fork for transmission, and the second shift fork for moving the second sliding gear to slide and mesh with the intermediate gear to realize power transmission between the power input shaft and the second output shaft.

In order to optimize the above technical solutions, the measures taken also include:

The above-mentioned upper cover is equipped with a first toggle lever for manipulating the first shift fork and a second toggle lever for manipulating the second shift fork; the upper cover is equipped with a shift fork shaft, the first shift fork and The second shift forks are respectively slidably set on the corresponding shift fork shafts. The first shifting joystick pushes the first shifting fork along the shifting fork shaft through the first small shifting lever to move the first sliding gear, and the second shifting lever The joystick pushes the second shift fork along the shift fork shaft through the second small shift rod to move the second sliding gear through the sliding displacement of the shift fork shaft.

Four pairs of shaft holes are formed on the above-mentioned lower box, and the four pairs of shaft holes include a pair of shaft holes for rotating and supporting the power input shaft, a pair of shaft holes for rotating and supporting the first output shaft, and a pair of shaft holes for rotating and supporting the first output shaft. A shaft hole supporting the second output shaft and a pair of shaft holes used to rotatably support the transition shaft; each shaft hole is equipped with a shaft cover that can act as a liquid seal.

Each shaft hole is equipped with a support bearing for rotation support. The support bearing includes a deep groove ball bearing with a stop groove that fits with the power input shaft and fits with the first output shaft, the second output shaft and the transition shaft. cylindrical roller bearings.

The above-mentioned upper cover and the lower box are connected by bolts, and the lower box is equipped with lubricating oil that can fully lubricate the gears and support bearings during rotation. The upper cover has an oil injection hole, and the oil injection hole is equipped with Seal the lid.

The side bottom of the above-mentioned lower box body is provided with an oil discharge hole connected to the lower box body, and the oil discharge hole is equipped with an oil discharge bolt, and an oil standard hole is arranged on the lower box body at the oil discharge hole, and the oil standard hole There is a vernier gauge for checking the lubricating oil level.

Ribs for improving the mechanical strength of the lower box are provided on the above-mentioned lower box.

The above-mentioned upper cover and lower box body are both assembled and welded by a plurality of Q345 structural steel plates.

Compared with the prior art, a power input shaft, a transition shaft, a first power output shaft and a second power output shaft are installed in the transfer case of the utility model, and each shaft is parallel to each other in the transfer case, wherein the first power The output shaft and the second power output shaft are symmetrically arranged on the first horizontal plane, and the power input shaft and the transition shaft are arranged symmetrically on the second horizontal plane. The height of the first horizontal plane is higher than the height of the second horizontal plane. The utility model changes the design structure of the shaft system of the traditional transfer case in a plane distribution, and reduces the size of the transfer case through the staggered arrangement of each shaft in space, making the transfer case structure more compact and reducing the weight of the transfer case. of the overall weight.

The utility model is simple in structure, easy to manufacture, has good maneuverability, and can realize time sharing of power.

Description of drawings

Fig. 1 is the front structural diagram of the utility model embodiment;

Fig. 2 is the A-A direction sectional structure diagram of Fig. 1;

Fig. 3 is a C-C cross-sectional structure diagram of Fig. 1;

FIG. 4 is a schematic diagram of the K-direction structure in FIG. 3 .

Detailed ways

Embodiments of the utility model are described in further detail below in conjunction with the accompanying drawings.

1 to 4 are structural schematic diagrams of embodiments of the present invention.

The reference signs are: oil drain hole F, deep groove ball bearing with stop groove S1, cylindrical roller bearing S2, bolt T, upper cover 1, lower box body 2, shaft cover 21, rib plate 22, power input Shaft 3, fixed gear 31, transition shaft 4, intermediate wheel 41, first output shaft 51, second output shaft 52, first sliding gear 53, second sliding gear 54, shift fork shaft 6, first shift fork 61, The second shift fork 62 , the first toggle lever 71 , the second toggle lever 72 , the first small lever 81 , the second small lever 82 , and the oil level hole 9 .

As shown in Figures 1 to 4, the utility model discloses a space parallel shaft transfer case, which can also be said to be a space parallel shaft transfer case with a new structure. Cover 1 and lower box body 2, loam cake 1 and lower box body 2 all can be integrally cast molded parts, also can be welded molded parts made by welding. When using welded formed parts, the material used for the upper cover 1 and the lower box body 2 is Q345 structural steel, or the upper cover 1 and the lower box body 2 are assembled and welded by a plurality of Q345 structural steel plates. The lower box body 2 is equipped with a power input shaft 3, a transition shaft 4, and a power output shaft that can be connected to the power equipment. The power output shaft includes a first output shaft 51 that redistributes the power input by the power input shaft 3 and The second output shaft 52 . In this embodiment, the power equipment is a fuel engine. The first output shaft 51 and the second output shaft 52 can be respectively connected with, for example, hydraulic pumps, water pumps, generators and the like.

As can be seen from Fig. 1 of the present utility model, the power input shaft 3, the transition shaft 4, the first output shaft 51 and the second output shaft 52 are arranged parallel to each other in the space of the transfer case, wherein: the first output The shaft 51 and the second output shaft 52 are parallel and symmetrically distributed in the first horizontal plane, the power input shaft 3 and the transition shaft 4 are parallel and symmetrically distributed in the second horizontal plane, and the height of the first horizontal plane is higher than the height of the second horizontal plane . The symmetry mentioned here refers to the middle dividing line of the lower casing 2 in Fig. 1 . The distance between the first output shaft 51 and the second output shaft 52 of the present utility model is designed to be greater than the distance between the power input shaft 3 and the transition shaft 4; The volume of the traditional transfer case can be reduced, the utility model is more compact in structure, and the purpose of miniaturization and light weight of the transfer case is achieved.

As can be seen from Fig. 2, a fixed gear 31 is installed on the power input shaft 3, and an intermediate wheel 41 meshing with the fixed gear 31 is installed on the transition shaft 4, and the intermediate wheel 41 and the fixed gear 31 are in a constant mesh state. The first sliding gear 53 is slidably fitted on the output shaft 51, and the second sliding gear 54 is slidably fitted on the second output shaft 52; both the first output shaft 51 and the second output shaft 52 are A guide chute is processed axially extending, the first sliding gear 53 can move axially along the guide chute on the first output shaft 51 , similarly, the second sliding gear 54 can move axially on the second output shaft 52 .

The upper cover 1 is equipped with a first shift fork (61) for moving the first sliding gear 53 to slide axially along the first output shaft 51 to mesh with the fixed gear 31. When the first sliding gear 53 meshes with the fixed gear 31 , that is, the power transmission between the power input shaft 3 and the first output shaft 51 is realized, so that the first output shaft 51 can output power.

The upper cover 1 is also equipped with a second shift fork 62 for moving the second sliding gear 54 to slide axially along the second output shaft 52 and mesh with the intermediate wheel 41. When the second sliding gear 54 meshes with the intermediate wheel 41, That is, power transmission between the power input shaft 3 and the second output shaft 52 through the fixed gear 31 , the intermediate gear 41 , and the second sliding gear 54 is realized, so that the second output shaft 52 can output power. Power redistribution of the first output shaft 51 and the second output shaft 52 is realized.

In the embodiment, a first toggle lever 71 for manipulating the first shift fork 61 and a second toggle lever 72 for manipulating the second shift fork 62 are installed on the upper cover 1; The shift fork is equipped with a corresponding number of shift fork shafts 6, and the first shift fork 61 and the second shift fork 62 are respectively slidably set on the corresponding shift fork shafts 6, so that they can slide and displace along their own set of shift fork shafts. , the first toggle lever 71 pushes the first shift fork 61 through the first small lever 81 to move the first sliding gear 53 along the sliding displacement of the fork shaft 6, and the second toggle lever 72 passes through the second small lever 82 Push the second shift fork 62 to move the second sliding gear 54 along the sliding displacement of the shift fork shaft 6 .

The first shift fork 61, the second shift fork 62, the first toggle lever 71, the second toggle lever 72, the first small shift lever 81, the second small shift lever 82 and the shift fork shaft 6 of the utility model Together they constitute the shifting mechanism for the transfer case to realize the shifting function.

In the embodiment, four pairs of shaft holes are formed on the lower box body 2, and the four pairs of shaft holes include a pair of shaft holes for rotationally supporting the power input shaft 3, and a pair of shaft holes for rotationally supporting the first output shaft 51. A shaft hole, a pair of shaft holes for rotatably supporting the second output shaft 2 and a pair of shaft holes for rotatably supporting the transition shaft 4; each shaft hole is equipped with a shaft cover 21 capable of sealing the liquid. The shaft hole mentioned here of the utility model is the supporting bearing hole for installing the bearing.

In the embodiment, each shaft hole, that is, the supporting bearing hole, is equipped with a supporting bearing for rotating support, and the supporting bearing includes a deep groove ball bearing S1 with a stop groove that fits with the power input shaft 3 and is connected with the first output shaft. The shaft 51 , the second output shaft 52 and the transition shaft 4 are fitted with cylindrical roller bearings S2 . The power input shaft 3 of the utility model is installed on the deep groove ball bearing S1 with a stop groove, and the other shafts are installed with cylindrical roller bearings. The power input shaft 3 adopts a deep groove ball bearing with a stop groove to carry a relatively Large axial load, in addition, the stop groove can prevent the bearing from moving in series and play a fixed role. Cylindrical roller bearings are used for other rotating shafts to better withstand radial loads.

In the embodiment, the upper cover 1 and the lower box body 2 are fixedly connected by bolts T, and the lower box body 2 is equipped with lubricating oil that can fully lubricate the gears and support bearings during rotation, and the upper cover 1 is provided with an oil injection The oil hole is equipped with a sealing cover.

In the embodiment, the side bottom of the lower box body 2 is provided with an oil drain hole F connected to the lower box body 2, the oil drain hole F is equipped with an oil drain bolt, and the lower box body 2 is located at the oil drain hole F. An oil level hole 9 is inserted with a vernier for checking the level of lubricating oil. In the utility model, when the lubricating oil in the transfer case needs to be replaced, the lubricating oil in the transfer case can be released by screwing down the oil drain bolt. The vernier scale facilitates the user to hold the lubricating oil in the transfer case at any time.

In the embodiment, the lower box body 2 is provided with ribs 22 for improving the mechanical strength of the lower box body 2 .

The above are only preferred implementations of the utility model, and the scope of protection of the utility model is not limited to the above-mentioned embodiments, and all technical solutions under the thinking of the utility model all belong to the scope of protection of the utility model.

Claims (8)

1. A new type of space-parallel-shaft transfer case, including an upper cover (1) and a lower case (2) matched up and down. The input shaft (3), the transition shaft (4) and the power output shaft, the power output shaft includes a first output shaft (51) and a second output shaft ( 52), characterized in that: the power input shaft (3), the transition shaft (4), the first output shaft (51) and the second output shaft (52) are spatially parallel, and the first The output shaft (51) and the second output shaft (52) are parallel and symmetrically distributed in the first horizontal plane, and the power input shaft (3) and the transition shaft (4) are parallel and symmetrically distributed in the second horizontal plane, The height of the first horizontal plane is higher than the height of the second horizontal plane, and the distance between the first output shaft (51) and the second output shaft (52) is greater than that between the power input shaft (3) and the transition shaft (4) The distance; the fixed gear (31) is installed on the described power input shaft (3), and the intermediate wheel (41) meshed with the fixed gear (31) is installed on the described transition shaft (4). The first output shaft (51) is slidably equipped with a first sliding gear (53), and the second output shaft (52) is slidably equipped with a second sliding gear (54); The upper cover (1) is equipped with a first shift fork ( 61), and the second shift fork (62) used to move the second sliding gear (54) to slide and mesh with the intermediate wheel (41) to realize power transmission between the power input shaft (3) and the second output shaft (52). 2. A novel space-parallel-shaft transfer case according to claim 1, characterized in that: the upper cover (1) is equipped with a first toggle control for manipulating the first shift fork (61) Rod (71) and the second toggle lever (72) for manipulating the second shift fork (62); a shift fork shaft (6) is installed in the upper cover (1), and the first shift The fork (61) and the second shift fork (62) are respectively slidably set on the corresponding shift fork shaft (6), and the first toggle lever (71) pushes the first shift lever (71) through the first small shift lever (81). A shift fork (61) moves the first sliding gear (53) along the sliding displacement of the shift fork shaft (6), and the second shifting lever (72) pushes the second shifting lever (82) The fork (62) moves the second sliding gear (54) along the sliding displacement of the fork shaft (6). 3. A novel space-parallel shaft transfer case according to claim 2, characterized in that: said lower case (2) is formed with four pairs of shaft holes, and said four pairs of shaft holes include a A pair of shaft holes for rotatably supporting the power input shaft (3), a pair of shaft holes for rotatably supporting the first output shaft (51), a pair of shaft holes for rotatably supporting the second output shaft (52) and a For the shaft holes used to rotate and support the transition shaft (4); each of the shaft holes is equipped with a shaft cover (21) capable of sealing the liquid. 4. A novel space-parallel-shaft transfer case according to claim 3, characterized in that: each of said shaft holes is provided with a support bearing for rotation support, and said support bearing includes a The power input shaft (3) fits the deep groove ball bearing with stop groove (S1) and the cylindrical roller bearing fits the first output shaft (51), the second output shaft (52) and the transition shaft (4) (S2). 5. A novel space parallel shaft transfer case according to claim 4, characterized in that: said upper cover (1) and lower case (2) are fixedly connected by bolts (T), said Lubricating oil that can fully lubricate the gears and support bearings during rotation is installed in the lower box (2), and the upper cover (1) has an oil injection hole, and the oil injection hole is equipped with a seal cover. 6. A new type of space-parallel shafting transfer case according to claim 5, characterized in that: the side bottom of the lower case (2) is provided with an oil drain hole connected to the lower case (2) (F), the oil discharge hole (F) is equipped with an oil discharge bolt, and the lower box (2) is provided with an oil standard hole (9) at the oil discharge hole (F), the oil standard hole ( 9) There is a vernier for checking the level of lubricating oil. 7. A new type of space parallel shaft transfer case according to claim 6, characterized in that: said lower case (2) is provided with ribs ( twenty two). 8. A novel space parallel shaft transfer case according to claim 7, characterized in that: the upper cover (1) and the lower case (2) are both assembled and welded by a plurality of Q345 structural steel plates.