CN216742758U - Clutch assembly and gearbox of multi-functional lubricated oil circuit - Google Patents

Abstract

The utility model relates to the technical field of transmission devices, in particular to a clutch assembly and a gearbox of a multifunctional lubricating oil circuit, wherein the clutch assembly comprises a rotating shaft, a lubricating oil channel penetrating through the clutch assembly is arranged on the rotating shaft along the axial direction of the rotating shaft, and the lubricating oil channel and the rotating shaft are arranged coaxially; an output gear rotatably disposed on the rotating shaft; the sun gear is fixedly arranged on the rotating shaft; the clutch assembly penetrates through the rotating shaft and can enable the output gear to be combined with or separated from the rotating shaft; and the lubricating shaft tube is arranged on the clutch assembly in a penetrating manner and is communicated with the lubricating oil channel. The utility model discloses can reduce the degree of difficulty of seting up the oil duct, reduce the quantity of seting up of oil duct, reduce the degree of difficulty of machining, guarantee the ride comfort of shifting simultaneously.

Description

Clutch assembly and gearbox of multi-functional lubricated oil circuit

Technical Field

The utility model relates to a transmission technical field especially relates to a clutch assembly and gearbox of multi-functional lubricated oil circuit.

Background

The clutch assembly of the existing planetary gearbox comprises a rotating shaft, a sun gear, a clutch, an output gear and the like, wherein the sun gear, the clutch and the output gear are arranged on the rotating shaft, the clutch is positioned between the sun gear and the output gear, and the clutch assembly is positioned in a hollow cavity formed by a box body and an end cover.

The source of the gear shifting hydraulic oil circuit and the source of the lubricating oil circuit of the clutch assembly are different. Hydraulic oil of the gear shifting oil circuit enters the rotating shaft through an oil passage on the end cover so as to push the piston to move along the axial direction, and the joint of a friction plate and a steel sheet of the clutch is realized; lubricating oil of the lubricating oil path comes from the box body, and the lubricating oil enters through the hollow rotating shaft through the lubricating oil channel by arranging the lubricating oil channel on the box body, so that the gears and the friction plates are lubricated. The existing mode needs more oil ducts, and the lubricating oil ducts are difficult to machine on the box body and complex to machine.

Therefore, a clutch assembly and a transmission with a multifunctional lubrication circuit are needed to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clutch assembly and gearbox of multi-functional lubricated oil circuit can reduce the degree of difficulty of seting up the oil duct, reduces the quantity of seting up of oil duct, reduces the degree of difficulty of machining.

To achieve the purpose, the utility model adopts the following technical proposal:

a clutch assembly of a multifunctional lubrication circuit, comprising:

the rotating shaft is provided with a lubricating oil channel penetrating through the rotating shaft along the axial direction of the rotating shaft, and the lubricating oil channel and the rotating shaft are arranged coaxially;

an output gear rotatably disposed on the rotating shaft;

the sun gear is fixedly arranged on the rotating shaft;

the clutch assembly is fixedly arranged on the rotating shaft in a penetrating mode and can enable the output gear to be combined with or separated from the rotating shaft;

lubricated central siphon, lubricated central siphon wears to establish on the clutch assembly, and with lubrication oil duct intercommunication, lubricated central siphon with the clearance has between the clutch assembly, lubricating oil can pass through lubricated central siphon enters into in the lubrication oil duct right output gear with the clutch assembly is lubricated, and hydraulic oil can pass through the clearance gets into in order to promote clutch assembly work.

Further, the clutch subassembly includes casing, steel sheet, friction disc and piston, the casing is fixed to be set up in the axis of rotation, lubricated central siphon wears to establish on the casing, the piston sets up on the casing, the friction disc with the piston butt, the steel sheet with output gear connects, and hydraulic oil can promote the piston makes the friction disc with the steel sheet combines.

Further, the clutch assembly further comprises a reset elastic piece, wherein the reset elastic piece is fixedly arranged on the shell, is abutted against the piston and is positioned on one side, facing the friction plate, of the piston.

Further, still include the adapter tube, the adapter tube with lubricated central siphon coaxial line sets up, and a pot head is established lubricated central siphon and on the casing.

Furthermore, a first oil duct communicated with the lubricating oil duct is formed in the rotating shaft, and lubricating oil can flow through the first oil duct to lubricate the sun gear.

Furthermore, a second oil duct communicated with the lubricating oil duct is formed in the rotating shaft, and lubricating oil can flow through the second oil duct to lubricate the clutch assembly.

Furthermore, a hydraulic oil duct communicated with the gap is formed in the shell, and hydraulic oil can enter through the hydraulic oil duct to push the piston to move.

Furthermore, a spline is arranged on the lubricating shaft tube along the axial direction of the lubricating shaft tube, a key groove matched with the spline is formed in the shell, the spline is located in the key groove, and the lubricating shaft tube can slide on the shell along the axial direction.

Further, a first retaining ring and a second retaining ring are arranged on the shell at intervals along the axial direction of the shell, and the first retaining ring and the second retaining ring are used for limiting the sliding distance of the lubricating shaft tube on the shell.

The utility model provides a gearbox, includes box, end cover and as above the clutch assembly of multi-functional lubricated oil circuit, the end cover sets up on the box, and with the box encloses to establish and forms well cavity, the clutch assembly rotates and sets up in the well cavity, lubricating oil and hydraulic oil can pass through the end cover gets into.

The utility model has the advantages that:

the utility model provides a clutch assembly of multi-functional lubricated oil circuit is provided with output gear, sun gear and clutch assembly in the axis of rotation, wears to be equipped with lubricated central siphon on clutch assembly, lubricated central siphon and the epaxial lubricating-oil duct intercommunication of axis of rotation. Lubricating oil enters the lubricating oil channel through the lubricating shaft tube to lubricate the output gear and the clutch assembly, and hydraulic oil enters the gap between the clutch assembly and the lubricating shaft tube to drive the clutch assembly to work. Through setting up lubricated central siphon, need not to set up the oil duct on the box to reduce the quantity of seting up of oil duct, reduce the degree of difficulty of machining.

The utility model provides a gearbox, including box, end cover and the clutch assembly of multi-functional lubricated oil circuit as above, the end cover setting is on the box, and encloses with the box and establish the cavity in the formation, and the clutch assembly rotates and sets up in cavity, and lubricating oil and hydraulic oil can get into through the end cover. Because the holes are formed in the end cover easily, the machining difficulty is reduced, and the oil duct is prevented from being formed in the box body, so that the difficulty in forming the oil duct is reduced, and the forming number of the oil ducts is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a clutch assembly of a multifunctional lubrication circuit according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of a clutch assembly of a multifunctional lubrication circuit according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a clutch assembly of a multifunctional lubrication circuit according to a second embodiment of the present invention.

In the figure:

1. a rotating shaft; 11. a lubricating oil passage; 12. a first oil passage; 13. a second oil passage; 2. a sun gear; 3. a clutch assembly; 31. a housing; 311. a hydraulic oil passage; 32. a piston; 33. a restoring elastic member; 4. an output gear; 5. an end cap; 6. lubricating the shaft tube; 7. and (4) a joint pipe.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

In the in-process of making the gearbox, when guaranteeing lubrication and drive clutch action, in order to reduce the degree of difficulty of seting up the oil duct, reduce the quantity of seting up of oil duct, reduce the degree of difficulty of machining, as shown in fig. 1-2, the utility model provides a clutch assembly of multi-functional lubricated oil circuit. The clutch assembly includes: a rotating shaft 1, an output gear 4, a sun gear 2, a clutch assembly 3 and a lubricated shaft tube 6.

Wherein, a lubricating oil channel 11 penetrating through the rotating shaft 1 is arranged on the rotating shaft 1 along the axial direction of the rotating shaft 1, and the lubricating oil channel 11 is arranged coaxially with the rotating shaft 1; the output gear 4 is rotationally arranged on the rotating shaft 1; the sun gear 2 is fixedly arranged on the rotating shaft 1, and in particular, in the embodiment, the sun gear 2 is integrated on the rotating shaft 1; the clutch component 3 is fixedly arranged on the rotating shaft 1 in a penetrating way, and can enable the output gear 4 to be combined with or separated from the rotating shaft 1; lubricated central siphon 6 wears to establish on clutch assembly 3, and with the 11 intercommunications of lubricated central siphon, has the clearance between lubricated central siphon 6 and the clutch assembly 3, and lubricating oil can enter into lubricated oil duct 11 through lubricated central siphon 6 and lubricate output gear 4 and clutch assembly 3, and hydraulic oil can get into in order to promote clutch assembly 3 work through the clearance.

Through the arrangement of the lubricating shaft tube 6, an oil duct does not need to be formed in the box body, so that the forming number of the oil duct is reduced, and the machining difficulty is reduced.

Further, clutch assembly 3 includes casing 31, steel sheet, friction disc and piston 32, and casing 31 is fixed to be set up on axis of rotation 1, and lubricated central siphon 6 wears to establish on casing 31, and steel sheet, friction disc and piston 32 all overlap and establish on axis of rotation 1, and piston 32 sets up on casing 31, friction disc and piston 32 butt, and the steel sheet is connected with output gear 4, and hydraulic oil can promote piston 32 for the friction disc combines with the steel sheet. When the rotating shaft 1 is required to output, hydraulic oil is controlled to enter the pushing piston 32, the piston 32 deforms and extrudes the friction plate under the action of the hydraulic oil, so that the friction plate is combined with the steel sheet, the power of the rotating shaft 1 is transmitted to the output gear 4 through the clutch assembly 3, and the output gear 4 realizes power output.

Further, the clutch assembly 3 further includes a return elastic member 33, and the return elastic member 33 is fixedly disposed on the housing 31, abuts against the piston 32, and is located on a side of the piston 32 facing the friction plate. Specifically, in this embodiment, the elastic return member 33 is a disc spring, the elastic return member 33 elastically deforms during the process of the piston 32 pushing and deforming the hydraulic oil, and the elastic return member 33 drives the piston 32 to return the piston 32 during the process of the clutch assembly 3 disengaging from the brake.

Further, as shown in fig. 2, the clutch assembly further includes a joint tube 7, the joint tube 7 and the lubricating shaft tube 6 are coaxially disposed, and one end of the joint tube is sleeved on the lubricating shaft tube and the housing 31. The lubricating oil directly enters the lubricating oil channel 11 through the joint pipe 7, and at the moment, an installation hole for fixing the joint pipe 7 is formed in the end cover 5 of the gearbox. The entry of the lubricating oil is facilitated by the provision of the joint pipe 7.

Further, a first sealing ring is arranged between the lubricating shaft tube 6 and the joint tube 7. Through setting up first sealing washer can prevent that lubricating oil from through the clearance seepage between lubricated central siphon 6 and the adapter tube 7, playing sealed effect, preventing lubricating oil and hydraulic oil channeling.

Further, a second seal ring is provided between the housing 31 and the joint pipe 7. By providing the second seal ring, the lubricating oil can be prevented from leaking through the gap between the housing 31 and the joint pipe 7, thereby further improving the sealing effect. Through the arrangement, lubricating oil can be ensured to smoothly enter the lubricating oil channel 11, and the effect of secrecy sealing is ensured. After the sealing is failed, the joint pipe 7 is only required to be taken out to replace a new sealing ring, so that the maintenance is convenient.

Further, a first oil duct 12 communicated with the lubricating oil duct 11 is formed in the rotating shaft 1, and lubricating oil can flow through the first oil duct 12 to lubricate the sun gear 2. The first oil passage 12 is provided to facilitate lubrication of the sun gear 2, thereby ensuring the service life of the sun gear 2.

Further, a second oil passage 13 communicated with the lubricating oil passage 11 is formed in the rotating shaft 1, and lubricating oil can flow through the second oil passage 13 to lubricate the clutch assembly 3. The clutch component 3 is lubricated conveniently by arranging the second oil duct 13, and heat generated by the clutch component 3 is discharged, so that the temperature between the friction plate and the steel sheet is reduced, and the service life of the clutch component 3 is ensured.

Further, a hydraulic oil passage 311 is formed in the housing 31 and is communicated with the gap, and hydraulic oil can enter through the hydraulic oil passage 311 to push the piston 32 to move. Specifically, an oil supply hole communicating with the gap between the lubricating shaft tube 6 and the housing 31 is opened in the end cover 5, and hydraulic oil enters the gap through the oil supply hole and then enters through the gap and the hydraulic oil passage 311, pushing the piston 32 and causing the piston 32 to move. By opening the hydraulic oil passage 311, hydraulic oil can be easily introduced.

Example two

As shown in fig. 3, the present embodiment is largely different from the first embodiment in that the lubrication shaft tube 6 can slide in the axial direction of the housing 31, thereby adjusting the pressure of the hydraulic oil that pushes the piston 32. Specific embodiments are described below.

In the prior art, when the gear is engaged, the gear oil passage of the speed change valve is opened, and hydraulic oil enters the shell of the clutch. When the oil duct valve of the speed change valve is opened instantaneously, the oil pressure is increased suddenly instantaneously due to the water hammer effect to form pressure pulse, and the piston 32 is pushed to move leftwards, so that the steel sheet and the friction sheet are combined instantaneously, a sliding friction process is avoided, and the gear is engaged instantaneously. Then according to the principle of 'water hammer effect', the pressure is rapidly reduced, the steel sheet and the friction sheet are worn, the speed change valve is operated, and then the pressure is controlled to be gradually increased until the steel sheet and the friction sheet are completely jointed again. Therefore, during the whole gear shifting process, the oil pressure has large pulse, and gear shifting impact is caused.

In order to solve the above problem, further, splines are arranged on the lubricating shaft tube 6 along the axial direction of the lubricating shaft tube 6, key grooves matched with the splines are formed on the shell 31, the splines are located in the key grooves, and the lubricating shaft tube 6 can slide on the shell 31 along the axial direction. When the oil passage valve of the speed change valve is opened instantaneously, because the oil pressure of the 'water hammer effect' is increased suddenly instantaneously, pressure pulse is formed, the lubricating shaft tube 6 can be pushed to move rightwards, the volume of the hydraulic oil passage 311 is increased, the pressure of hydraulic oil is weakened, the pressure is not enough to push the piston 32 to move leftwards to push the friction plate and the steel sheet to be combined, namely, the pressure pulse is weakened, the clutch cannot be combined with a gear to be engaged, the impact caused by the pressure pulse in the gear shifting process is further reduced, and the smoothness of gear shifting is ensured.

Further, a first retaining ring and a second retaining ring are arranged on the housing 31 at intervals along the axial direction of the housing 31, and the first retaining ring and the second retaining ring are used for limiting the sliding distance of the lubricated axle tube 6 on the housing 31. Carry on spacingly through setting up first retaining ring and second retaining ring to lubricated central siphon 6's movement distance, can guarantee when the impact that avoids pressure pulse to lead to, avoid the pressure decline of hydraulic oil to lead to the friction disc of clutch and the pressure that the steel sheet combines too soon not enough.

When the gear is disengaged, the gear oil passage of the speed change valve is closed, the hydraulic oil in the gear oil passage flows back, a certain pressure exists in the lubricating oil because the lubricating oil is low-pressure oil, the lubricating oil enters the right end of the lubricating shaft tube 6 through the lubricating oil passage 11, the lubricating shaft tube 6 is pushed to move to the left by the pressure of the lubricating oil and is positioned by the second retaining ring, namely the lubricating shaft tube 6 is reset to the initial position, and the gear shifting and the gear disengaging are completed.

This embodiment still provides a gearbox, including box, end cover 5 and the clutch assembly of multi-functional lubricated oil circuit as above, end cover 5 sets up on the box, and encloses with the box and establish and form well cavity, and the clutch assembly rotates and sets up in well cavity, and lubricating oil and hydraulic oil can get into through end cover 5. Because the holes are formed in the end cover 5 easily, the machining difficulty is reduced, and the oil duct is prevented from being formed in the box body, so that the difficulty in forming the oil duct is reduced, and the forming number of the oil ducts is reduced.

Further, sealing rings are arranged between the lubricating shaft tube 6 and the end cover 5, between the shell 31 and the end cover 5, and between the shell 31 and the inner ring and the outer ring of the piston 32, and through the arrangement, a sealed oil cavity of the hydraulic oil is formed in a sealing mode. Make hydraulic oil and lubricating oil separate, the oil channeling is not guaranteed, guarantees to shift and accomplishes smoothly.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a clutch assembly of multi-functional lubricated oil circuit which characterized in that includes:

the lubricating oil device comprises a rotating shaft (1), a lubricating oil channel (11) penetrating through the rotating shaft (1) is formed in the rotating shaft (1) along the axial direction of the rotating shaft (1), and the lubricating oil channel (11) and the rotating shaft (1) are arranged coaxially;

the output gear (4) is rotatably arranged on the rotating shaft (1);

the sun gear (2) is fixedly arranged on the rotating shaft (1);

the clutch component (3) is fixedly arranged on the rotating shaft (1) in a penetrating mode, and the output gear (4) can be combined with or separated from the rotating shaft (1);

lubricated central siphon (6), wear to establish lubricated central siphon (6) on clutch assembly (3), and with lubrication oil duct (11) intercommunication, lubricated central siphon (6) with the clearance has between clutch assembly (3), lubricating oil can pass through lubricated central siphon (6) enter into in lubrication oil duct (11) right output gear (4) with clutch assembly (3) are lubricated, and hydraulic oil can pass through the clearance gets into in order to promote clutch assembly (3) work.

2. The clutch assembly of the multifunctional lubricating oil circuit as defined in claim 1, wherein the clutch component (3) comprises a housing (31), a steel sheet, a friction plate and a piston (32), the housing (31) is fixedly arranged on the rotating shaft (1), the lubricating shaft tube (6) is arranged on the housing (31) in a penetrating manner, the piston (32) is arranged on the housing (31), the friction plate is abutted against the piston (32), the steel sheet is connected with the output gear (4), and hydraulic oil can push the piston (32) so that the friction plate is combined with the steel sheet.

3. The clutch assembly of the multifunctional lubricating oil circuit as claimed in claim 2, wherein the clutch component (3) further comprises a return elastic member (33), and the return elastic member (33) is fixedly arranged on the housing (31), abuts against the piston (32), and is positioned on one side of the piston (32) facing the friction plate.

4. The clutch assembly of the multifunctional lubricating oil circuit according to claim 2, further comprising a joint pipe (7), wherein the joint pipe (7) and the lubricating shaft pipe (6) are coaxially arranged, and one end of the joint pipe is sleeved on the lubricating shaft pipe (6) and the shell (31).

5. The clutch assembly with the multifunctional lubricating oil circuit as claimed in claim 1, wherein a first oil channel (12) communicated with the lubricating oil channel (11) is formed in the rotating shaft (1), and lubricating oil can flow through the first oil channel (12) to lubricate the sun gear (2).

6. The clutch assembly of the multifunctional lubricating oil path as claimed in claim 1, wherein the rotating shaft (1) is provided with a second oil path (13) communicated with the lubricating oil path (11), and lubricating oil can flow through the second oil path (13) to lubricate the clutch component (3).

7. The clutch assembly of the multifunctional lubricating oil path as claimed in claim 2, wherein the housing (31) is provided with a hydraulic oil path (311) communicated with the gap, and hydraulic oil can enter through the hydraulic oil path (311) to push the piston (32) to move.

8. The clutch assembly of the multifunctional lubricating oil path as claimed in claim 2, wherein splines are arranged on the lubricating shaft tube (6) along the axial direction of the lubricating shaft tube (6), a key groove matched with the splines is formed on the housing (31), the splines are located in the key groove, and the lubricating shaft tube (6) can slide on the housing (31) along the axial direction.

9. The clutch assembly of the multifunctional lubricating oil circuit of claim 8, characterized in that a first retaining ring and a second retaining ring are arranged on the housing (31) at intervals along the axial direction of the housing (31), and the first retaining ring and the second retaining ring are used for limiting the sliding distance of the lubricating shaft tube (6) on the housing (31).

10. A transmission case, characterized in that, including box, end cover (5) and the multi-functional lubricated oil circuit's of any one of claims 1-9 clutch assembly, end cover (5) set up on the box, and enclose with the box and establish and form well cavity, clutch assembly rotates and sets up in well cavity, lubricating oil and hydraulic oil can pass through the entering of end cover (5).

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