CN209818708U - Lubricating device for high-level bearing of long shaft drop transfer case - Google Patents

Abstract

The utility model discloses a major axis falls transfer case elevated bearing lubricating arrangement, including the transfer case, be provided with the lubricating pump through the lubricating pump mount pad is fixed on the transfer case, the input of lubricating pump is connected with rubber tube two, and the other end of rubber tube two is connected with the oil absorption pipe, be provided with the oil absorption filter on the oil absorption pipe, the oil absorption filter sets up inside the transfer case, the output of lubricating pump is connected with the oil pipe, the other end of oil pipe is connected on the oil return pipe of flow divider input, the output of flow divider is connected with rubber tube one, the other end of rubber tube one is connected with the input of cross valve piece, the output of cross valve piece is connected with the lubricating pipe respectively, each lubricating pipe is connected respectively on the oil duct hole of bearing frame, the oil duct is located inside the transfer case, does not make big change to the transfer case, can not influence original rigidity and intensity of transfer case, the better lubricating effect is ensured, and the service life of the transfer case is prolonged.

Description

Lubricating device for high-level bearing of long shaft drop transfer case

Technical Field

The utility model relates to a lubricating arrangement technical field specifically is a major axis falls transfer case elevated bearing lubricating arrangement.

Background

In the prior art, a transfer case is a device for distributing power of an engine. At present, the transfer case enters an era of high power and large torque, the adopted gear module is larger and larger, the size is larger and larger, larger space is occupied, and bearings at two ends of a shaft far away from an oil pan can not be normally lubricated in the operation process, so that the bearings are damaged. In addition, the heat dissipated by the running of the gears in the shell is large, and high temperature can be formed in the transfer case body, so that the service life of the gears and the bearing is adversely affected. Especially, the transfer case that the shaft drop is bigger, the lubrication of two high-order axles is difficult, and the problem that the heat dissipation of the case body is not good because of the lubrication is not in place appears very easily in the vehicle use process, leads to the bearing to damage, and the vehicle can't move, only solves the lubrication problem of high-order bearing betterly, just can eliminate this kind of influence.

The prior art adopts two measures, one is to increase the size of the box body and enlarge the space of the box body. But the transfer case is difficult to increase in size due to the structural limitations of the chassis. Another common measure is currently seen, in which a relatively large-bore oil passage is usually provided inside the transfer case to accelerate heat dissipation and bearing lubrication. Because the inside more, the large bore oil duct that is equipped with of box at the transfer case, this has brought the problem that influences box intensity again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a major axis falls transfer case elevated bearing lubricating arrangement reduces and makes big change to the box, guarantees original rigidity and intensity of box, not only guarantees good lubricated effect, improves the life of transfer case simultaneously to guaranteed whole transfer case lubricating system's life, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a major axis falls transfer case elevated bearing lubricating arrangement, includes the transfer case, be provided with the lubricating pump through the lubricating pump mount pad is fixed on the transfer case, the input of lubricating pump is connected with rubber tube two, and the other end of rubber tube two is connected with inhales oil pipe, it is provided with the oil absorption filter on the oil pipe, the oil absorption filter sets up inside the transfer case, the output of lubricating pump is connected with out oil pipe, the other end of going out oil pipe is connected on the oil return pipe of flow divider input, the output of flow divider is connected with rubber tube one, the other end of rubber tube one is connected with the input of four-way valve piece, the output of four-way valve piece is connected with lubricated pipe one, lubricated pipe two and lubricated pipe three respectively, lubricated pipe one, lubricated pipe two and lubricated pipe three are connected respectively on the oil duct hole of bearing frame, and the bearing frame divide into the bearing frame, The bearing seat, the intermediate shaft bearing seat and the output shaft bearing seat of the high-order shaft are connected in sequence, and oil ducts flowing into bearing lubricating points are formed in the bearing seat, the intermediate shaft bearing seat and the output shaft bearing seat of the high-order shaft.

As a further aspect of the present invention: the oil absorption filter is installed on an oil pan of the transfer case through a flange plate.

As a further aspect of the present invention: the oil return pipe, the oil suction pipe, the oil outlet pipe and the bearing lubricating pipe are all steel pipes.

As a further aspect of the present invention: and a back pressure one-way valve is arranged in the flow divider valve block.

As a further aspect of the present invention: the diameter of the oil passage in the transfer case is not more than 10 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the oil duct is positioned in the transfer case, and the transfer case is not greatly changed, so that the original rigidity and strength of the transfer case are not influenced, a better lubricating effect is ensured, the service life of the transfer case is prolonged, and the service life of the whole transfer case lubricating system is ensured;

2. the diameter of the oil duct is not more than 10mm, and the pipeline is simple, convenient to install and easy to reform;

3. the flow divider is added, so that the pressure of lubricating oil at the bearing can be ensured to be low, and the bearing and the oil seal can not be damaged;

4. the lubricating pipeline is distributed to each bearing lubricating point, so that the lubricating effect is good;

5. the lubrication device can be applied to lubrication of all transfer case bearings, and is particularly suitable for the transfer case in which the long shaft elevation bearing cannot be lubricated.

Drawings

FIG. 1 is a schematic view of the front structure of a transfer case of a long-axis drop transfer case elevated bearing lubricating device.

Fig. 2 is a schematic structural diagram of the side surface of a transfer case in the lubricating device for the high-level bearing of the long-axis drop transfer case.

FIG. 3 is a block diagram of the lubrication process of the transfer case high-order bearing in the lubricating device of the long-axis drop transfer case high-order bearing.

In the figure: the oil return pipe 1, the flow divider 2, the rubber hose I3, the lubricating pipe I4, the four-way valve block 5, the lubricating pipe II 6, the lubricating pipe III 7, the lubricating pump 8, the rubber hose II 9, the oil suction pipe 10, the oil outlet pipe 11, the oil suction filter 12 and the transfer case 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a lubrication device for a long-axis drop transfer case high-order bearing includes a transfer case 13, a lubrication pump 8 is fixedly disposed on the transfer case 13 through a lubrication pump mounting seat, an input end of the lubrication pump 8 is connected to a second rubber tube 9, the other end of the second rubber tube 9 is connected to an oil suction pipe 10, the oil suction pipe 10 is provided with an oil suction filter 12, the oil suction filter 12 is disposed inside the transfer case 13, an output end of the lubrication pump 8 is connected to an oil outlet pipe 11, the other end of the oil outlet pipe 11 is connected to an oil return pipe 1 at an input end of a flow divider 2, an output end of the flow divider 2 is connected to a first rubber tube 3, the other end of the first rubber tube 3 is connected to an input end of a four-way valve block 5, an output end of the four-way valve block 5 is respectively, the lubricating pipe I4, the lubricating pipe II 6 and the lubricating pipe III 7 are respectively connected to an oil channel hole of the bearing block, the bearing block is divided into a bearing block of the high-level shaft, an intermediate shaft bearing block and an output shaft bearing block, the bearing block of the high-level shaft, the intermediate shaft bearing block and the output shaft bearing block are sequentially connected, oil channels flowing into bearing lubricating points are formed in the bearing block of the high-level shaft, the intermediate shaft bearing block and the output shaft bearing block, the oil suction filter 12 is preset at the bottom of an oil pan of the transfer case 13, the lubricating pump 8 sucks oil through the oil suction filter 12, the lubricating pump 8 is connected with the flow dividing valve 2, the flow dividing valve 2 is connected to different lubricating points through a lubricating pipeline through the four-way.

The oil suction filter 12 is mounted on an oil pan of the transfer case 13 through a flange plate, so that oil liquid cleanness of the whole lubricating system is guaranteed, and filter elements are convenient to replace.

The oil return pipe 1, the oil suction pipe 10, the oil outlet pipe 11 and the bearing lubricating pipe are all steel pipes, so that heat can be quickly dissipated, and the phenomenon that the lubricating effect is influenced due to overhigh temperature in the shell of the transfer case 13 is avoided.

A back pressure one-way valve is arranged in the valve block of the flow divider 2, the pressure is set to be 0.3bar, and the bearing and the oil seal are prevented from being damaged due to high system pressure caused by blockage of a lubricating oil path, faults of a lubricating pump and the like.

The diameter of the oil duct in the transfer case 13 is not more than 10mm, so that the pipeline is convenient to install and easy to reform.

The utility model discloses a theory of operation is: the lubricating pump 8 is through the oil pump play of oil absorption filter 12 with transfer case 13 oil pan, the play oil pipe 11 of lubricating pump 8 is connected to flow divider 2, there is the backpressure check valve in the 2 valve blocks of flow divider, can guarantee that the oil pressure of bearing lubrication department is not higher than 0.3bar, the oil that flow divider 2 came out divides the bearing lubrication point oil supply of four ways to difference, every oil duct of bearing lubrication point flows in from the bearing frame of overhead axle, jackshaft bearing frame and output shaft bearing frame, there is the oil duct hole that leads to bearing department on the bearing frame.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. The utility model provides a major axis falls transfer case elevated bearing lubricating arrangement, includes transfer case (13), its characterized in that, be provided with lubricating pump (8) through the lubricating pump mount pad is fixed on transfer case (13), the input of lubricating pump (8) is connected with rubber tube two (9), and the other end of rubber tube two (9) is connected with inhales oil pipe (10), it inhales oil filter (12) to be provided with on oil pipe (10), it sets up inside transfer case (13) to inhale oil filter (12), the output of lubricating pump (8) is connected with oil pipe (11), the other end of oil pipe (11) is connected on oil return pipe (1) of flow divider (2) input, the output of flow divider (2) is connected with rubber tube (3), the other end of rubber tube (3) is connected with the input of four-way valve block (5), the output of four-way valve block (5) is connected with lubricated pipe (4) respectively, Lubricating pipe two (6) and lubricating pipe three (7), lubricating pipe one (4), lubricating pipe two (6) and lubricating pipe three (7) are connected respectively on the oil duct hole of bearing frame, and the bearing frame divide into the bearing frame of high-order axle, jackshaft bearing frame and output shaft bearing frame, and the bearing frame of high-order axle, jackshaft bearing frame and output shaft bearing frame connect gradually, and offer the oil duct that flows into the bearing lubrication point on the bearing frame of high-order axle, jackshaft bearing frame and output shaft bearing frame.

2. The lubrication device for the overhead bearing of the long-shaft lowering transfer case is characterized in that the oil suction filter (12) is installed on an oil pan of the transfer case (13) through a flange plate.

3. The lubrication device for the high-level bearing of the long-shaft drop transfer case is characterized in that the oil return pipe (1), the oil suction pipe (10), the oil outlet pipe (11) and the bearing lubrication pipe are all steel pipes.

4. The lubrication device for the high-level bearing of the long-shaft drop transfer case is characterized in that a back pressure one-way valve is arranged inside a valve block of the flow dividing valve (2).

5. The long shaft lowering transfer case elevated bearing lubrication device according to claim 1, wherein the transfer case (13) internal oil passage diameter is no more than 10 mm.