CN217130276U - Flywheel power takeoff - Google Patents

Abstract

The utility model provides a flywheel power takeoff, its characterized in that: the output shaft is rotatably arranged in the shell, the idler shaft and the output shaft are arranged in the shell in parallel, two tapered roller bearings are arranged between the shell and the output shaft, an oil inlet channel is formed in the shell, a first oil duct communicated with the oil inlet channel and used for lubricating the output shaft and each tapered roller bearing is formed in the output shaft and each tapered roller bearing, and a second oil duct communicated with the first oil duct and used for lubricating the idler shaft is further formed in the shell; the tapered roller bearing is adopted to support the output shaft, so that the lubricating requirement can be reduced, the working reliability of the output shaft is improved, and the output shaft is not easy to damage; the structure of one oil inlet channel, the first oil channel and the second oil channel is adopted, and the lubricating device has the advantages of simple structure, convenience in processing and manufacturing and low production cost on the premise of simultaneously lubricating the tapered roller bearing, the output shaft and the idler shaft.

Description

Flywheel power takeoff

Technical Field

The utility model belongs to moment transmission equipment field especially relates to a flywheel power takeoff.

Background

The output shaft of current flywheel power takeoff adopts the axle bush to support the flywheel power takeoff more, the axle bush has the silence effect although, but require high to lubricate, in case lubrication is bad, will lead to axle bush wearing and tearing and veneer, thereby damage the output shaft, and the axle bush lubrication of the output shaft in the current flywheel power takeoff and the form that power takeoff idler shaft lubrication is mostly designing a lubricated inlet port separately lubricate, lead to advancing oil pipe way many, the structure is complicated, the manufacturing degree of difficulty is big, high in production cost.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a flywheel power takeoff can effectively improve the driven reliability of output shaft, simultaneously, has still simplified the lubricated oil circuit structure of output shaft and idler axle.

In order to achieve the above and other related objects, the present invention provides a flywheel power takeoff, which comprises a casing, an output shaft and an idler shaft, wherein the output shaft is rotatably disposed in the casing, and the idler shaft and the output shaft are disposed in the casing in parallel;

the output shaft and the tapered roller bearings are provided with a first oil duct communicated with the oil inlet duct and used for lubricating the output shaft and each tapered roller bearing, and the shell is further provided with a second oil duct communicated with the first oil duct and used for lubricating an idler shaft.

Optionally, the housing includes a housing body and an end cover, the housing body is sequentially provided with a first mounting hole and a second mounting hole along an axial direction of an output shaft, the two tapered roller bearings are respectively a first tapered roller bearing and a second tapered roller bearing, the first tapered roller bearing and the second tapered roller bearing are respectively mounted in the first mounting hole and the second mounting hole, the output shaft is mounted on the first tapered roller bearing and the second tapered roller bearing, and the end cover is mounted at a first end of the housing body and used for plugging the first mounting hole;

the oil inlet channel is a first through hole formed in the end cover, and the inlet end of the first through hole is located on the upper side of the end cover.

Optionally, the second oil duct includes a main oil duct, a first branch oil duct and a second branch oil duct, the main oil duct is disposed on the output shaft, an inlet end of the main oil duct is communicated with an outlet end of the oil inlet duct, the first branch oil duct is disposed on the output shaft and the first tapered roller bearing, the second branch oil duct is disposed on the output shaft and the second tapered roller bearing, and the first branch oil duct and the second branch oil duct are both communicated between the main oil duct and the second oil duct.

Optionally, the main oil gallery is a first counterbore formed in the output shaft, the first counterbore is formed from the first end to the second end along the axial direction of the output shaft, and an inlet end of the first counterbore is communicated with an outlet end of the first through hole.

Optionally, the first oil branch duct includes a second through hole provided in the output shaft and a third through hole provided in an outer ring of the first tapered roller bearing, the second through hole radially penetrates through the output shaft along the output shaft and is communicated with the first counterbore, the second through hole is located in a position where the first tapered roller bearing is mounted on the output shaft, and the third through hole is communicated with the second through hole.

Optionally, the second oil duct includes a fourth through hole provided in the output shaft and a fifth through hole provided in an outer ring of the second tapered roller bearing, the fourth through hole radially penetrates through the output shaft along the output shaft and is communicated with the first counterbore, the fourth through hole is located in a position where the second tapered roller bearing is mounted on the output shaft, and the fifth through hole is communicated with the fourth through hole.

Optionally, a first annular groove is further formed in the outer side surface of the outer ring of the first tapered roller bearing, and the third through hole penetrates through the outer ring of the first tapered roller bearing along the radial direction of the first tapered roller bearing and is communicated with the first annular groove;

and a second annular groove is further formed in the outer side surface of the outer ring of the second tapered roller bearing, and the fifth through hole penetrates through the outer ring of the second tapered roller bearing along the radial direction of the second tapered roller bearing and is communicated with the second annular groove.

Optionally, the second through hole and the fourth through hole are arranged in a crossed manner.

Optionally, the second oil passage includes a third oil passage and a fourth oil passage, an inlet end of the third oil passage is communicated with an outlet end of the first oil passage, and an outlet end of the third oil passage is located at the first end of the idler shaft;

the inlet end of the fourth branch oil duct is communicated with the outlet end of the second branch oil duct, and the outlet end of the fourth branch oil duct is located on the upper side of the idler shaft.

Optionally, the third branch oil duct is a sixth through hole formed in the casing body, an inlet end of the sixth through hole is communicated with an outlet end of the third through hole, and an outlet end of the sixth through hole is located at the first end of the idler shaft;

the fourth oil branch passage is an upper inner cavity of the shell body, and the upper inner cavity of the shell body is communicated with the second mounting hole.

As mentioned above, the utility model discloses a flywheel power takeoff has following beneficial effect:

compared with the original bearing bush for supporting the output shaft, the tapered roller bearing is adopted for supporting the output shaft, so that the lubricating requirement can be reduced, the working reliability of the output shaft is improved, and the output shaft is not easy to damage; the tapered roller bearing can bear larger radial force, so that the reliability of the support of the output shaft is improved; in addition, the device has the advantage of convenient disassembly and assembly, thereby improving the disassembly and assembly efficiency; the part of the first flow passage is arranged on the tapered roller bearing, so that the lubrication of the tapered roller bearing is improved, and the advantage of good silencing effect of the bearing bush is also achieved; compared with a structure provided with a plurality of oil inlet holes, the structure of one oil inlet channel, the first oil channel and the second oil channel has the advantages of simple structure, convenience in processing and manufacturing and low production cost on the premise of simultaneously lubricating the tapered roller bearing, the output shaft and the idler shaft; by adopting the tapered roller bearing to support the output shaft and the oil duct structure, the structure of the flywheel power takeoff is simplified, the structural compactness of the flywheel power takeoff is improved, the manufacturing cost is reduced, and meanwhile, the service life and the safety are also improved.

Drawings

Fig. 1 is a schematic structural diagram of a flywheel power takeoff according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a flywheel power takeoff according to an embodiment of the present invention;

fig. 3 is a schematic view of a part of the structure of the housing in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of an output shaft in an embodiment of the present invention;

fig. 5 is an isometric view of an output shaft in an embodiment of the present invention;

fig. 6 is a first isometric view of two tapered roller bearings in an embodiment of the present invention;

fig. 7 is a second axial view of two tapered roller bearings in an embodiment of the present invention.

Detailed Description

As shown in fig. 1-7, the utility model provides a flywheel power takeoff, including casing 1, output shaft 2 and idler shaft 3, install two tapered roller bearing 4 in proper order along the horizontal in fig. 1 in the casing 1, the horizontal setting in fig. 1 is followed to output shaft 2's axis, this output shaft 2 installs on two tapered roller bearing 4, and output shaft 2 casing 1 rotation relatively, output shaft 2's second end (the right-hand member in fig. 1) extends casing 1 to the right side, idler shaft 3 installs in casing 1, and idler shaft 3's axis and output shaft 2's axis parallel arrangement.

As shown in fig. 1, an oil inlet channel a for the circulation of lubricating oil is formed in the casing 1, so that the lubricating oil enters from the inlet of the oil inlet channel 11; a first oil duct b for circulating lubricating oil is formed in the output shaft 2 and the two tapered roller bearings 4 and is communicated with the oil inlet duct a, so that the lubricating oil flows into the first oil duct b through the oil inlet duct a and lubricates the output shaft 2 and the two tapered roller bearings 4; the casing 1 is further provided with a second oil duct c for lubricating oil to flow through, and the second oil duct c is communicated between the first oil duct b and the idler shaft 3, so that the lubricating oil enters the second oil duct c from the first oil duct b and then flows to the idler shaft 3 through the second oil duct c to lubricate the idler shaft 3.

The direction of the arrow in fig. 2 is the flow path of the lubricating oil: lubricating oil is injected into the oil inlet channel a through external equipment, the external equipment is an oil pump, pressure is provided through the oil pump, the lubricating oil is injected into the oil inlet channel a, the lubricating oil flows into the first oil channel b from the oil inlet channel a, the output shaft 2 and the tapered roller bearing 4 are lubricated, the lubricating oil flows into the second oil channel c from the first oil channel b, and then flows to the position of the idler shaft 3 through the second oil channel c, and therefore the idler shaft is lubricated.

Compared with the original bearing bush for supporting the output shaft, the tapered roller bearing is adopted for supporting the output shaft, so that the lubricating requirement can be reduced, the working reliability of the output shaft is improved, and the output shaft is not easy to damage; the tapered roller bearing can bear larger radial force, so that the reliability of the support of the output shaft is improved; in addition, the device has the advantage of convenient disassembly and assembly, thereby improving the disassembly and assembly efficiency; the part of the first flow channel is arranged on the tapered roller bearing, so that the lubrication of the tapered roller bearing is improved, and the advantage of good silencing effect of the bearing bush is also achieved.

Compared with a structure provided with a plurality of oil inlet holes, the structure provided with one oil inlet channel, the first oil channel and the second oil channel has the advantages of simple structure, convenience in processing and manufacturing and low production cost on the premise of simultaneously lubricating the tapered roller bearing, the output shaft and the idler shaft.

Specifically, as shown in fig. 1, the flywheel power takeoff further comprises an input shaft 5, a first gear 6, an idler gear 7 and a second gear 8, wherein the input shaft 5 is rotatably installed in the housing 1, the axis of the input shaft 5 is parallel to the axis of the output shaft 2, and the input shaft 5 is a crankshaft on the engine; the first gear 6 is arranged on the input shaft 5 and rotates along with the input shaft 5; the idler shaft 3 is fixed in the shell 1 through a fastening bolt 9, and the idler 7 is rotatably arranged on the idler shaft 3 and meshed with the first gear 6; the second gear wheel 8 is mounted on the output shaft 2 such that the output shaft 2 can follow the rotation of the second gear wheel 8, and the second gear wheel 8 meshes with the idle gear wheel 7.

The working principle of the flywheel power takeoff is as follows: firstly, the input shaft 5 rotates, the first gear 6 rotates along with the input shaft 5, the first gear 6 drives the idle gear 7 to rotate, the idle gear 7 drives the second gear 8 to rotate, and the output shaft 2 rotates along with the second gear 8, so that the effect of transmitting torque is achieved.

The tapered roller bearing is adopted for supporting, and the position of the second gear is determined by the play of the tapered roller bearing, so that the assembly position of the second gear is more accurate, and meanwhile, the axial play of the second gear is smaller.

Specifically, the oil inlet channel a, the first oil channel b and the second oil channel c can be through hole structures arranged on the shell, the output shaft and the tapered roller bearing, and can also be pipeline structures arranged outside.

By adopting the tapered roller bearing to support the output shaft and the oil duct structure, the structure of the flywheel power takeoff is simplified, the structural compactness of the flywheel power takeoff is improved, the manufacturing cost is reduced, and meanwhile, the service life and the safety are also improved.

In some embodiments, as shown in fig. 1 to 3, the housing 1 includes a housing body 11 and an end cap 12, the housing body 11 is sequentially provided with a first mounting hole 111 and a second mounting hole 112 from a first end (a left end of the housing body in fig. 1) to a second end (a right end of the housing body in fig. 1) along an axial direction of the output shaft, the two tapered roller bearings 4 are a first tapered roller bearing 41 and a second tapered roller bearing 42, the first tapered roller bearing 41 and the second tapered roller bearing 42 are respectively installed in the first mounting hole 111 and the second mounting hole 112, the output shaft 2 is installed on the first tapered roller bearing 41 and the second tapered roller bearing 42, and the end cap 12 is installed at the first end of the housing body 11 and is used for plugging the left end of the first mounting hole 111; the oil inlet passage a is a first through hole opened in the end cover 12, an inlet end of the first through hole is located on an upper side (upper side in fig. 1) of the end cover 12, and an outlet end of the first through hole is communicated with the first oil passage b.

The shell body and the end cover structure have the advantages of simple structure and convenience in processing and manufacturing; the oil inlet channel is a first through hole formed in the end cover, so that the weight of the end cover is reduced and the structural compactness is improved under the action of conveying lubricating oil; the inlet end of the oil inlet channel is arranged at the upper end of the end cover, so that lubricating oil enters the oil inlet channel from the upper end, and the circulation of the lubricating oil is facilitated under the action of gravity.

Specifically, the first mounting hole 111 and the second mounting hole 112 may be through-hole structures or counter-bore structures, in this example, the first mounting hole 111 and the second mounting hole 112 are through-holes, and the first mounting hole 111 and the second mounting hole 112 are located at two sides of the upper inner cavity 11a of the housing body and are communicated with each other.

The shape of the first through hole on the cross section where the axis of the first through hole is located can be L-shaped, linear or other shapes, and can be selected according to specific requirements.

In some embodiments, as shown in fig. 1 to 3, the second oil passage b includes a main oil passage ba, a first branch oil passage bb and a second branch oil passage bc, the main oil passage ba is disposed on the output shaft 2, and an inlet end of the main oil passage ba is communicated with an outlet end of the oil inlet passage a, that is, the inlet end of the main oil passage is communicated with an outlet end of the first through hole, the first branch oil passage bb is disposed on the output shaft 2 and the first tapered roller bearing 41, the second branch oil passage bc is disposed on the output shaft 2 and the second tapered roller bearing 42, and the first branch oil passage bb and the second branch oil passage bc are both communicated between the main oil passage ba and the second oil passage c;

by adopting the oil duct structure, the lubricating oil is conveyed, so that the lubricating oil lubricates the output shaft, the first tapered roller bearing and the second tapered roller bearing, and the structure is compact.

In some embodiments, as shown in fig. 1 to 5, the main oil gallery ba is a first counter bore opened in the output shaft 2, the first counter bore is opened from a first end to a second end along the axial direction of the output shaft, and an inlet end of the first counter bore is communicated with an outlet end of the first through hole, where the first end is a left end in fig. 1, and the second end is a right end in fig. 1; through set up first counter bore as main oil duct ba in output shaft 2, not only have simple structure, still be convenient for the advantage of processing manufacturing, simultaneously, still be convenient for the circulation of lubricating oil.

Specifically, the ratio of the diameter of the output shaft 2 to the diameter of the first counter bore is 5.2-5.3, and by adopting the ratio range, the diameter of the first counter bore can be directly calculated according to the diameter of the output shaft, so that the requirement on the rigidity strength of the output shaft 2 can be met, the circulation of lubricating oil in the first counter bore can also be met, the reduction of the circulation of the lubricating oil in the first through bore due to the overlarge ratio is avoided, the lubricating effect is reduced, and the reduction of the rigidity strength of the output shaft due to the overlarge ratio caused by the overlarge circulation of the first counter bore is avoided; in this example, the ratio of the diameter of the output shaft to the diameter of the first counterbore is 5.25, the diameter of the output shaft is 42mm, and the diameter of the first counterbore can be directly calculated to be 8 mm.

In the present embodiment, as shown in fig. 3 to 4, the second end surface (the end surface on the right side in fig. 1) of the end cap 12 protrudes outward to form a first annular projection 121, a second counter bore 21 and a third counter bore 22 which are coaxially arranged with the first counter bore are sequentially arranged on the first end surface of the output shaft 2 from the first end to the second end, the third counter bore 22 is communicated between the second counter bore 21 and the first counter bore, the first annular boss 121 is installed in the second counterbore 21 and the third counterbore 22, the first through hole is L-shaped in the cross section where the axis of the first through hole is located, so that the inlet end of the L-shaped first through hole is positioned at the upper side, the outlet end of the first through hole is arranged on the right end face of the first annular boss 121 and is communicated with the inlet end of the first counter bore, and, a first oil seal 101 is arranged between the outer side surface of the first annular boss 121 and the inner side surface of the second counterbore 21; install in second counter bore 21 and second counter bore 22 through first annular boss 121 to install first oil blanket between the lateral surface of first annular boss 121 and the medial surface of second counter bore 21, make lubricating oil get into the entry entering of first counter bore from the export of first through-hole, can not take place to leak, simultaneously, still improved compact structure nature.

An oil seal mounting hole 113 is formed in the shell body 12, the oil seal mounting hole 113 and the second mounting hole 112 are coaxially arranged, the oil seal mounting hole 113 is located at the right end of the second mounting hole and communicated with each other, a second oil seal 102 is mounted in the oil seal mounting hole 113, and the second oil seal 102 radially abuts against the outer side face of the output shaft 2 and the inner side face of the oil seal mounting hole 113 along the oil seal mounting hole, so that the right end of the second mounting hole 112 is sealed.

In some embodiments, as shown in fig. 2 to 7, the first oil branch passage bb includes a second through hole 23 opened on the output shaft and a third through hole 41a opened on the outer ring of the first tapered roller bearing 41, the second through hole 23 penetrates through the output shaft 2 in the radial direction of the output shaft and communicates with the first counter bore, and the second through hole 23 is located in a position where the first tapered roller bearing 41 is installed on the output shaft 2, that is, after the first tapered roller bearing 41 and the output shaft 2 are assembled in place, the second through hole 23 is located in the first tapered roller bearing 41, so that the lubricating oil enters the second through hole 23 from the first counter bore and then enters the first tapered roller bearing from the second through hole 23, and then flows to the third through hole 41 a; through setting up second through-hole and third through-hole, playing and supplying the lubricating oil circulation, when lubricated output shaft and first tapered roller bearing, still alleviateed output shaft and first tapered roller bearing's quality.

Specifically, after the lubricating oil flows into the first tapered roller bearing from the second through hole 23 to lubricate the first tapered roller bearing, a part of the lubricating oil flows into the upper inner cavity 11a of the housing body from the first mounting hole 111 along the axial direction of the output shaft, so that the output shaft and the gears are lubricated, and the other part of the lubricating oil flows into the third through hole.

In some embodiments, as shown in fig. 2 to 7, the second branch oil passage bc includes a fourth through hole 24 opened on the output shaft and a fifth through hole 42a opened on an outer ring of the second tapered roller bearing, the fourth through hole 24 penetrates through the output shaft in the radial direction of the output shaft and communicates with the first counter bore, and the fourth through hole is located in a position where the second tapered roller bearing 42 is mounted on the output shaft 2, that is, when the second tapered roller bearing 42 is assembled with the output shaft in place, the fourth through hole 24 is located in the second tapered roller bearing 42, so that the lubricating oil enters the fourth through hole 24 from the first counter bore, enters the second tapered roller bearing 42 from the fourth through hole 24, and then flows into the fifth through hole; through setting up fourth through-hole and fifth through-hole, playing and supplying the lubricating oil circulation, when lubricated output shaft and second tapered roller bearing, still alleviateed output shaft and second tapered roller bearing's quality.

Specifically, after the lubricating oil flows into the second tapered roller bearing from the fourth through hole 24 to lubricate the second tapered roller bearing, a part of the lubricating oil flows into the upper inner cavity 11a of the housing body from the second mounting hole 112 along the axial direction of the output shaft, and the other part of the lubricating oil flows into the fifth through hole to lubricate the second tapered roller bearing.

The first tapered roller bearing 41 and the second tapered roller bearing 42 both have no inner ring, that is, only a hole needs to be formed in the corresponding outer ring to communicate with the through hole in the output shaft.

In some embodiments, as shown in fig. 6 to 7, a first annular groove 41b is further formed on an outer side surface of the outer ring of the first tapered roller bearing 41, and a third through hole 41a penetrates through the outer ring of the first tapered roller bearing along a radial direction of the first tapered roller bearing and is communicated with the first annular groove 41b, so that the lubricating oil can flow into the first annular groove from the third through hole, when the first tapered roller bearing 41 is installed, only the position of the first annular groove 41b needs to be aligned with an inlet end of the second oil passage c, and the third through hole 41a does not need to be aligned with an inlet end of the second oil passage any more; through setting up this first ring channel 41b structure, can not only increase the flow area on first tapered roller bearing 41 of lubricating oil, under playing lubricated effect, can also take away more heats to increased the cooling effect, simultaneously, still had the assembly of being convenient for, improved assembly efficiency.

Second annular groove 42b has still been seted up on the lateral surface of second tapered roller bearing's outer lane, fifth through-hole radially runs through second tapered roller bearing's outer lane along second tapered roller bearing, and communicate with second annular groove 42b, make lubricating oil can follow the fifth through-hole and flow to in the second ring channel 42b, through setting up this second ring channel 42b structure, can not only increase the flow area of lubricating oil on second tapered roller bearing, under the lubricated effect of playing, can also take away more heats, thereby increased the cooling effect, and simultaneously, the assembly of being convenient for still has, and the assembly efficiency is improved.

Specifically, the first annular groove 41b and the second annular groove 42b are arc-shaped in cross-sectional shape where the corresponding axes are located, and an arc-shaped structure is adopted, so that the structural strength of the outer ring of the first tapered roller bearing and the structural strength of the outer ring of the second tapered roller bearing can be ensured compared with a rectangular shape or a triangular shape.

When the first tapered roller bearing 41 and the second tapered roller bearing 42 are installed, the third through hole 41a on the first tapered roller bearing is arranged on the upper side (the upper side in fig. 1), and the fifth through hole on the second tapered roller bearing is arranged on the lower side (the lower side in fig. 1), so that lubricating oil can better enter the second oil passage through the output shaft, and the lubricating effect on the idler shaft is further improved.

In some embodiments, as shown in fig. 4 to 5, the second through hole 23 and the fourth through hole 24 are arranged in a crossed manner, where the crossed manner means that the axis of the second through hole 23 and the axis of the fourth through hole 24 are perpendicular to the axis of the output shaft, and on a cross section perpendicular to the axis of the output shaft, an included angle between the projection of the axis of the second through hole 23 and the projection of the axis of the fourth through hole 24 is greater than 0 ° and less than or equal to 90 °, so that at different moments during the rotation of the output shaft 2, the first tapered roller bearing 41 or the second tapered roller bearing 42 is better lubricated.

Specifically, the included angle between the projection of the axis of the second through hole 23 and the projection of the axis of the third through hole 24 is 90 degrees, so that the processing is convenient, and the damage to the rigidity of the output shaft can be reduced.

In some embodiments, as shown in fig. 2, the second oil passage c includes a third branch oil passage ca and a fourth branch oil passage cb, an inlet end of the third branch oil passage ca is communicated with an outlet end of the first branch oil passage, that is, an inlet end of the third branch oil passage ca is communicated with the first annular groove 41b, and an outlet end of the third branch oil passage is located at the first end (left end in fig. 1) of the idler shaft 3, so that the lubricating oil flows from the first annular groove 41b into the third branch oil passage ca and then flows from the third branch oil passage ca to the first end of the idler shaft, thereby lubricating the idler shaft.

The inlet end of the fourth branch oil passage cb is communicated with the outlet end of the second branch oil passage, and the outlet end of the fourth branch oil passage cb is located on the upper side of the idler shaft 3, so that the lubricating oil flows into the fourth branch oil passage from the second annular groove 42b and then flows to the idler shaft for lubrication.

By arranging the third branch oil duct and the fourth branch oil duct, the idler shaft is lubricated respectively, so that the lubricating requirement on the idler shaft is met.

Specifically, the third oil passage and the fourth oil passage may be through-hole structures provided in the housing, or may be formed by adding pipes.

In some embodiments, as shown in fig. 2, the third branch oil passage ca is a sixth through hole opened in the casing, an inlet end of the sixth through hole communicates with an outlet end of the third through hole, and an outlet end of the sixth through hole is located at the first end of the idler shaft 3.

The fourth branch oil passage cb is an upper inner cavity 11a of the housing body, the upper inner cavity is communicated with the left end of the second mounting hole 112, so that after the lubricating oil flows from the fourth through hole to the second tapered roller bearing 42, a part of the lubricating oil flows from the fifth through hole 42a to the second annular groove 42b to lubricate the second tapered roller bearing, and the other part of the lubricating oil flows from the axial direction of the second tapered roller bearing 42 to the left side, flows into the upper inner cavity 11a, and then flows to the idler shaft 3 under the action of gravity to lubricate the idler shaft.

Specifically, an oil outlet 11b for lubricating oil is formed in the shell body 11, and the lubricating oil flows from the upper inner cavity 11a to the lower inner cavity 11b and then flows out from the oil outlet 11 b. The upper cavity 11a in each of the above embodiments is a cavity portion located on the upper side of the idler shaft 3 in the housing body, the lower cavity 11c is a cavity portion located on the lower side of the idler shaft 3 in the housing body 11, and the upper cavity and the lower cavity of the housing body are conventional structures, and will not be described herein again.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A flywheel power takeoff is characterized in that: the output shaft is rotatably arranged in the shell, and the idler shaft and the output shaft are arranged in the shell in parallel;

the output shaft and the tapered roller bearings are provided with a first oil duct communicated with the oil inlet duct and used for lubricating the output shaft and each tapered roller bearing, and the shell is further provided with a second oil duct communicated with the first oil duct and used for lubricating an idler shaft.

2. The flywheel power takeoff of claim 1, wherein: the shell comprises a shell body and an end cover, the shell body is sequentially provided with a first mounting hole and a second mounting hole along the axial direction of an output shaft, the two tapered roller bearings are respectively a first tapered roller bearing and a second tapered roller bearing, the first tapered roller bearing and the second tapered roller bearing are respectively mounted in the first mounting hole and the second mounting hole, the output shaft is mounted on the first tapered roller bearing and the second tapered roller bearing, and the end cover is mounted at the first end of the shell body and used for plugging the first mounting hole;

the oil inlet channel is a first through hole formed in the end cover, and the inlet end of the first through hole is located on the upper side of the end cover.

3. The flywheel power takeoff of claim 2, wherein: the second oil duct comprises a main oil duct, a first branch oil duct and a second branch oil duct, the main oil duct is arranged on the output shaft, the inlet end of the main oil duct is communicated with the outlet end of the oil inlet duct, the first branch oil duct is arranged on the output shaft and the first tapered roller bearing, the second branch oil duct is arranged on the output shaft and the second tapered roller bearing, and the first branch oil duct and the second branch oil duct are communicated between the main oil duct and the second oil duct.

4. The flywheel power takeoff of claim 3, wherein: the main oil duct is a first counter bore arranged on the output shaft, the first counter bore is arranged from the first end to the second end along the axial direction of the output shaft, and the inlet end of the first counter bore is communicated with the outlet end of the first through hole.

5. The flywheel power takeoff of claim 4, wherein: the first oil branch channel comprises a second through hole formed in the output shaft and a third through hole formed in the outer ring of the first tapered roller bearing, the second through hole penetrates through the output shaft along the radial direction of the output shaft and is communicated with the first counter bore, the second through hole is located in the position, on the output shaft, where the first tapered roller bearing is installed, and the third through hole is communicated with the second through hole.

6. The flywheel power takeoff of claim 5, wherein: the second oil channel comprises a fourth through hole formed in the output shaft and a fifth through hole formed in the outer ring of the second tapered roller bearing, the fourth through hole penetrates through the output shaft along the radial direction of the output shaft and is communicated with the first counter bore, the fourth through hole is located in the position, on the output shaft, where the second tapered roller bearing is installed, and the fifth through hole is communicated with the fourth through hole.

7. The flywheel power takeoff of claim 6, wherein: the outer side surface of the outer ring of the first tapered roller bearing is also provided with a first annular groove, and the third through hole penetrates through the outer ring of the first tapered roller bearing along the radial direction of the first tapered roller bearing and is communicated with the first annular groove;

and a second annular groove is further formed in the outer side surface of the outer ring of the second tapered roller bearing, and the fifth through hole penetrates through the outer ring of the second tapered roller bearing along the radial direction of the second tapered roller bearing and is communicated with the second annular groove.

8. The flywheel power takeoff of claim 6, wherein: the second through hole and the fourth through hole are arranged in a crossed mode.

9. The flywheel power takeoff of claim 3, wherein: the second oil duct comprises a third oil duct and a fourth oil duct, the inlet end of the third oil duct is communicated with the outlet end of the first oil duct, and the outlet end of the third oil duct is positioned at the first end of the idler shaft;

the inlet end of the fourth branch oil duct is communicated with the outlet end of the second branch oil duct, and the outlet end of the fourth branch oil duct is located on the upper side of the idler shaft.

10. The flywheel power takeoff of claim 9, wherein: the third branch oil duct is a sixth through hole formed in the shell body, the inlet end of the sixth through hole is communicated with the outlet end of the third through hole, and the outlet end of the sixth through hole is located at the first end of the idler shaft;

the fourth oil branch passage is an upper inner cavity of the shell body, and the upper inner cavity of the shell body is communicated with the second mounting hole.

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