CN217301553U - High-efficient lubricating structure of gearbox PTO idler bearing - Google Patents
High-efficient lubricating structure of gearbox PTO idler bearing Download PDFInfo
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- CN217301553U CN217301553U CN202221011234.2U CN202221011234U CN217301553U CN 217301553 U CN217301553 U CN 217301553U CN 202221011234 U CN202221011234 U CN 202221011234U CN 217301553 U CN217301553 U CN 217301553U
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Abstract
The utility model discloses a high-efficient lubricating structure of gearbox PTO idler bearing, including torque converter casing and the fuel feed pump of fixing at the right-hand member face of torque converter casing, the axis of rotation of fuel feed pump is through bearing swing joint in the torque converter casing, is fixed with the idler shaft in the torque converter casing below the axis of rotation, has idler gear through a plurality of first bearing swing joints on the idler shaft; a transverse connecting through hole is formed in a side plate, facing the first bearing, of the torque converter shell, a plug is fixed to the outer end of the transverse connecting through hole, a connecting through hole extending backwards is formed in the side wall of the middle of the transverse connecting through hole, and the connecting through hole is communicated with an oil outlet pipe on the oil supply pump. The transverse connecting through hole is formed in the side plate of the torque converter shell corresponding to the first bearing, and part of oil in an oil outlet hole channel of the oil supply pump directly enters the transverse connecting through hole, so that the oil is forced to rush to the first bearing, lubrication is achieved, the lubricating amount is large, and the lubricating effect is good.
Description
The technical field is as follows:
the utility model relates to an engineering machine tool technical field, more specifically say and relate to a high-efficient lubricating structure of gearbox PTO idler bearing.
Background art:
the existing gearbox PTO idler bearing lubricating structure is shown in figure 1, because the position of an oil supply pump 1a (external PTO) is generally above a gearbox, the positions of an oil pump driving gear 3a and an idler gear 4a for driving the oil pump are higher, the existing structure adopts A, B two notches added on a torque converter shell 2a, oil is thrown into A, B two notches by the rotation of the idler gear 4a, A, B two notches enter the interior of the idler shaft 6a through a hole on the idler shaft 6a, and then a bearing 5a on the idler shaft 6a is lubricated through an internal radial hole (an arrow marked in figure 1 is the flowing direction of lubricating oil); the disadvantages are that: the torque converter casing foundry goods is more complicated, and two breachs of A, B are also more shallow, and the uniformity is poor, when getting rid of oil, two breachs of A, B probably can't the oil feed occasionally, lead to the bearing to lack the lubrication and damage, and it is because during it need guarantee that fluid can get into the idler axle in addition, its idler axle processing is more troublesome, and the processing cost is high, and the effect is poor.
The utility model has the following contents:
the utility model aims at overcoming the not enough of prior art, the utility model provides a high-efficient lubricating structure of gearbox PTO idler bearing, it is through setting up the transverse connection through-hole on a curb plate of the torque converter casing that first bearing corresponds, part fluid in the pore that produces oil with the fuel feed pump directly gets into the transverse connection through-hole, make fluid force to rush to first bearing on, realize lubricating, its lubricating quantity is big, it is lubricated effectual, and the inside runner that need not reprocessing the fuel feed liquid and flow of idler shaft, make its processing convenient, greatly reduced processing cost and machining efficiency.
The utility model provides a technical problem's scheme is:
a high-efficiency lubricating structure of a gearbox PTO idler bearing comprises a torque converter shell and an oil supply pump fixed on the right end face of the torque converter shell, wherein a rotating shaft of the oil supply pump is movably connected into the torque converter shell through a bearing, an idler shaft is fixed in the torque converter shell below the rotating shaft, a driving gear is arranged on the rotating shaft, an idler gear is movably connected onto the idler shaft through a plurality of first bearings, and the idler gear is meshed with the driving gear; a transverse connecting through hole is formed in a side plate, facing the first bearing, of the torque converter shell, a plug is fixed to the outer end of the transverse connecting through hole, a connecting through hole extending backwards is formed in the side wall of the middle of the transverse connecting through hole, and the connecting through hole is communicated with an oil outlet hole channel in the oil supply pump.
Furthermore, an internal thread is formed at the inner end of the transverse connecting through hole, the throttling screw plug is in threaded connection with the internal thread of the transverse connecting through hole, an oil passing concave hole is formed in the middle of the outer end face of the throttling screw plug, a middle throttling through hole is formed in the middle of the inner end face of the oil passing concave hole, and the inner end of the middle throttling through hole extends out of the inner end face of the throttling screw plug and faces one of the first bearings.
Furthermore, the outer end of the transverse connecting through hole is a conical hole section, an internal thread is formed on the inner side wall of the transverse connecting through hole, and the outer side wall of the plug is a conical wall surface and is in threaded connection with the internal thread of the conical hole section.
Furthermore, the rotating shaft is movably connected to the left side plate and the right side plate of the torque converter shell through two bearings.
Further say, the shaping has the radial bellying that extends on the middle part lateral wall of axis of rotation, the shaping has the spline groove on the left part lateral wall of axis of rotation, the shaping has the spline arch on the inside wall of drive gear's central through-hole, the left part plug bush of axis of rotation is in drive gear's central through-hole, the protruding plug bush of spline is in the spline groove, the spline arch cooperatees with the spline groove, drive gear's left end face presses on the terminal surface of the inner circle of the left bearing that corresponds, drive gear's right-hand member face pressure is on the left end face of radial bellying that extends.
Furthermore, a mounting through hole is formed in a left side plate of the torque converter shell below the rotating shaft, a positioning concave hole is formed in the inner wall surface of a right side plate of the torque converter shell opposite to the mounting through hole, a threaded hole extending rightwards is formed in the right end face of the middle of the positioning concave hole, the right end of the idler shaft is inserted into the positioning concave hole, the left end of the idler shaft is formed with a connecting part with the diameter larger than that of the idler shaft, the connecting part is inserted and sleeved in the mounting through hole, a central through hole is formed in the middle of the idler shaft, a concave hole is formed in the middle of the outer end face of the connecting portion, the concave hole is communicated with the central through hole, a screw portion of the fixing bolt is inserted and sleeved in the central through hole, the end part of the screw part of the fixing bolt is screwed in the screwing hole, the rotating part of the fixing bolt is positioned in the concave hole, the outer side wall of the right end of the idler shaft is matched with the inner side wall of the positioning concave hole, and the right end face of the idler shaft is pressed against the right end face of the positioning concave hole.
The utility model discloses an outstanding effect is:
the transverse connecting through hole is formed in the side plate of the torque converter shell corresponding to the first bearing, part of oil in an oil outlet hole of the oil supply pump directly enters the transverse connecting through hole, the oil is forced to rush to the first bearing, lubrication is achieved, the lubricating quantity is large, the lubricating effect is good, a runner for oil supply to flow does not need to be processed in the idler shaft, machining is convenient, and machining cost and machining efficiency are greatly reduced.
Description of the drawings:
FIG. 1 is a schematic view of a prior art bearing lubrication configuration;
fig. 2 is a schematic view of a partial structure of the present invention.
The specific implementation mode is as follows:
in the embodiment, as shown in fig. 2, an efficient lubrication structure of a gearbox PTO idler bearing comprises a torque converter housing 10 and an oil supply pump 20 fixed on a right end face of the torque converter housing 10, wherein a rotating shaft 21 of the oil supply pump 20 is movably connected in the torque converter housing 10 through a bearing, both the middle part and the left part of the rotating shaft 21 extend into the torque converter housing 10, an idler shaft 30 is fixed in the torque converter housing 10 below the rotating shaft 21, a driving gear 22 is arranged on the rotating shaft 21, an idler gear 50 is movably connected on the idler shaft 30 through a plurality of first bearings 40, and the idler gear 50 is meshed with the driving gear 22; a transverse connecting through hole 11 is formed in a side plate of the torque converter shell 10 opposite to the first bearing 40, a plug 12 is fixed at the outer end of the transverse connecting through hole 11, a connecting through hole 13 extending backwards is formed in the side wall of the middle of the transverse connecting through hole 11, and the rear end of the connecting through hole 13 is communicated with an oil outlet hole formed in the part, located at the rear part of the torque converter shell 10, of the oil supply pump 20, so that part of pressure oil from the oil supply pump 20 flows into the connecting through hole 13.
Further, an internal thread is formed at the inner end of the transverse connecting through hole 11, the throttle screw plug 14 is screwed on the internal thread of the transverse connecting through hole 11, an oil through concave hole 141 is formed in the middle of the outer end face of the throttle screw plug 14, a middle throttle through hole 142 is formed in the middle of the inner end face of the oil through concave hole 141, the inner end of the middle throttle through hole 142 extends out of the inner end face of the throttle screw plug 14 and faces a ball below the first bearing 40 on the right side, and the diameter of the middle throttle through hole 142 is smaller than that of the oil through concave hole 141.
Further, the outer end of the transverse connecting through hole 11 is a conical hole section, an internal thread is formed on the inner side wall of the transverse connecting through hole, and the outer side wall of the plug 12 is a conical wall surface and is screwed on the internal thread of the conical hole section.
Further, the rotating shaft 21 is movably connected to the left and right side plates of the torque converter housing 10 through two bearings.
Further, the shaping has radial extension bellying 211 on the middle part lateral wall of axis of rotation 21, the shaping has a spline groove on the left part lateral wall of axis of rotation 21, the shaping has a spline arch on the inside wall of drive gear 22's central through-hole, the left part plug bush of axis of rotation 21 is in drive gear 22's central through-hole, the protruding plug bush of spline is in the spline groove, the spline arch cooperatees with the spline groove, drive gear 22's left end face presses on the terminal surface of the inner circle of the left bearing that corresponds, drive gear 22's right-hand member face presses and leans on the left end face of radial extension bellying 211.
Further, a mounting through hole 15 is formed on a left side plate of the torque converter housing 10 below the rotating shaft 21, a positioning concave hole 16 is formed on an inner wall surface of a right side plate of the torque converter housing 10 opposite to the mounting through hole 15, a screw hole extending rightward is formed on a right end surface of a middle portion of the positioning concave hole 16, a right end of the idler shaft 30 is inserted into the positioning concave hole 16, a connecting portion 31 having a diameter larger than that of the idler shaft 30 is formed on a left end of the idler shaft 30, the connecting portion 31 is inserted into the mounting through hole 15, a central through hole 32 is formed on a middle portion of the idler shaft 30, a concave hole 311 is formed in a middle portion of an outer end surface of the connecting portion 31, the concave hole 311 is communicated with the central through hole 32, a screw portion of the fixing bolt 500 is inserted into the central through hole 32, an end portion of a screw portion of the fixing bolt 500 is screwed into the screw hole, a rotating portion of the fixing bolt 500 is positioned in the concave hole 311, an outer side wall of a right end portion of the idler shaft 30 is matched with an inner side wall of the positioning concave hole 16, the outer side wall of the right end of the idler shaft 30 is tightly attached to the inner side wall of the positioning concave hole 16, the right end face of the idler shaft 30 is pressed against the right end face of the positioning concave hole 16, a gasket 1 is further inserted and sleeved on the screw rod part of the fixing bolt 500, and the gasket 1 is clamped between the rotating part of the fixing bolt 500 and the inner end face of the concave hole 311;
an annular groove is formed in the outer side wall of the connecting portion 31, the sealing ring 2 is nested in the annular groove, the outer wall surface of the sealing ring 2 is pressed against the inner side wall of the installation through hole 15, and the outer side wall of the connecting portion 31 is close to or closely attached to the inner side wall of the installation through hole 15.
The inner rings of the two first bearings 40 are clamped on the outer side wall of the idler shaft 30, the inner side wall of the middle through hole of the idler gear 50 is pressed against the outer wall surface of the outer rings of the two first bearings 30, a separating ring is clamped between the outer rings of the two first bearings 40 and fixed on the inner side wall of the middle through hole of the idler gear 50, the right end surface of the inner ring of the right first bearing 30 is pressed against the inner wall surface of the right wall plate of the torque converter shell 10, and the left end surface of the inner ring of the left first bearing 30 is pressed against the right end surface of the connecting part 31.
When the lubrication oil lubrication device is used, the lubrication oil can flow through the oil outlet hole of the oil supply pump 20 and part of the oil enters the connecting through hole 13 and then enters the transverse connecting through hole 11, and then is discharged to the balls below the right first bearing 40 through the middle throttle through hole 142 of the throttle screw plug 14 (because the oil flowing out from the oil outlet hole of the oil supply pump 20 has pressure, the oil can rush to the balls below the right first bearing 40), the lubrication of the whole first bearing 40 can be realized along with the rotation of the balls of the first bearing 40, and meanwhile, the oil can also rush to the left first bearing 40 from the gap between the balls of the oil after being arranged on the right first bearing 40, so that the two first bearings 40 are lubricated, the lubrication effect is good, and the efficiency is high;
because the outer end face middle part shaping of throttle plug screw 14 has logical oil shrinkage pool 141, leads to the inner end face middle part shaping of oil shrinkage pool 141 and has middle part throttle through-hole 142, and the diameter of middle part throttle through-hole 142 is less than the diameter of logical oil shrinkage pool 141 for when fluid jets out from middle part throttle through-hole 142 again through leading to oil shrinkage pool 141, increased the pressure of jetting, guarantee lubricated effect.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (6)
1. The utility model provides a high-efficient lubricating structure of gearbox PTO idler bearing, includes torque converter casing (10) and fixes oil feed pump (20) at the right-hand member face of torque converter casing (10), and rotation axis (21) of oil feed pump (20) are fixed with idler shaft (30), its characterized in that in torque converter casing (10) of the below of rotation axis (21) through bearing swing joint in torque converter casing (10): a driving gear (22) is arranged on the rotating shaft (21), an idler shaft (30) is movably connected with an idler gear (50) through a plurality of first bearings (40), and the idler gear (50) is meshed with the driving gear (22); a transverse connecting through hole (11) is formed in a side plate of the torque converter shell (10) opposite to the first bearing (40), a plug (12) is fixed to the outer end of the transverse connecting through hole (11), a connecting through hole (13) extending backwards is formed in the side wall of the middle of the transverse connecting through hole (11), and the connecting through hole (13) is communicated with an oil outlet hole channel in the oil supply pump (20).
2. The highly efficient lubricating structure for a gearbox PTO idler bearing according to claim 1, wherein: the inner of transverse connection through-hole (11) is formed with the internal thread, throttle plug screw (14) spiro union is on the internal thread of transverse connection through-hole (11), and the outer terminal surface middle part shaping of throttle plug screw (14) has logical oil shrinkage pool (141), and the inner terminal surface middle part shaping of logical oil shrinkage pool (141) has middle part throttle through-hole (142), and the inner of middle part throttle through-hole (142) stretches out the inner terminal surface of throttle plug screw (14) and is facing to one of them first bearing (40).
3. The highly efficient lubricating structure for a gearbox PTO idler bearing according to claim 1, wherein: the outer end of the transverse connecting through hole (11) is a conical hole section, internal threads are formed on the inner side wall of the transverse connecting through hole, and the outer side wall of the plug (12) is a conical wall and is in threaded connection with the internal threads of the conical hole section.
4. The highly efficient lubricating structure for a gearbox PTO idler bearing according to claim 1, wherein: the rotating shaft (21) is movably connected to the left side plate and the right side plate of the torque converter shell (10) through two bearings.
5. The highly efficient lubricating structure for a gearbox PTO idler bearing according to claim 1, wherein: the shaping has radial extension bellying (211) on the middle part lateral wall of axis of rotation (21), the shaping has the spline groove on the left part lateral wall of axis of rotation (21), the shaping has the spline arch on the inside wall of the central through hole of drive gear (22), the left part plug bush of axis of rotation (21) is in the central through hole of drive gear (22), the protruding plug bush of spline is in the spline groove, the spline arch cooperatees with the spline groove, the left end face of drive gear (22) presses on the terminal surface of the inner circle of the left bearing that corresponds, the right-hand member face pressure of drive gear (22) is on the left end face of radial extension bellying (211).
6. The highly efficient lubricating structure for a gearbox PTO idler bearing according to claim 1, wherein: an installation through hole (15) is formed in the left side plate of the torque converter shell (10) below the rotating shaft (21), a positioning concave hole (16) is formed in the inner wall surface of the right side plate of the torque converter shell (10) opposite to the installation through hole (15), a screw hole extending rightwards is formed in the right end face of the middle of the positioning concave hole (16), the right end of the idler shaft (30) is inserted into the positioning concave hole (16), a connecting part (31) with the diameter larger than that of the idler shaft (30) is formed in the left end of the idler shaft (30), the connecting part (31) is inserted and sleeved in the installation through hole (15), a central through hole (32) is formed in the middle of the idler shaft (30), a concave hole (311) is formed in the middle of the outer end face of the connecting part (31), the concave hole (311) is communicated with the central through hole (32), a screw part of the fixing bolt (500) is inserted and sleeved in the screw hole, the rotating part of the fixing bolt (500) is positioned in the concave hole (311), the outer side wall of the right end of the idler shaft (30) is matched with the inner side wall of the positioning concave hole (16), and the right end face of the idler shaft (30) is pressed against the right end face of the positioning concave hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221011234.2U CN217301553U (en) | 2022-04-28 | 2022-04-28 | High-efficient lubricating structure of gearbox PTO idler bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221011234.2U CN217301553U (en) | 2022-04-28 | 2022-04-28 | High-efficient lubricating structure of gearbox PTO idler bearing |
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| Publication Number | Publication Date |
|---|---|
| CN217301553U true CN217301553U (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221011234.2U Active CN217301553U (en) | 2022-04-28 | 2022-04-28 | High-efficient lubricating structure of gearbox PTO idler bearing |
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| Country | Link |
|---|---|
| CN (1) | CN217301553U (en) |
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- 2022-04-28 CN CN202221011234.2U patent/CN217301553U/en active Active
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