CN212509279U - Engine driving device - Google Patents

Abstract

The utility model discloses an engine driving device, which comprises a driving part and a driven part, wherein the driving part comprises a driving shaft, a driving shaft sleeve and a driving wheel, and the inner hole of the driving shaft sleeve is a conical inner hole; the driven part comprises a driven shaft sleeve and a driven wheel, the driven shaft sleeve is slidably sleeved on the driving shaft, the outer side wall of the left section of the driven shaft sleeve is matched with the shape of a conical inner hole of the driving shaft sleeve, a conical limiting convex ring is arranged on the middle section of the driving shaft, and a limiting groove is formed in the inner hole of the driven shaft sleeve; a plurality of radial through holes are formed in the driven shaft sleeve, and a short shaft is arranged in each radial through hole; the outer side wall of the left section of the driven shaft sleeve is also provided with a plurality of radial locking inner holes, and each radial locking inner hole is internally provided with a lock pin; a plurality of radial locking outer holes are formed in the wall of the conical inner hole of the driving shaft sleeve, and when the driven bearing is located at the left limit position, the plurality of radial locking outer holes are communicated with the plurality of radial locking inner holes in a butt joint mode. The utility model has the advantages that: the quick connection or disconnection of the active part and the passive part can be realized.

Description

Engine driving device

Technical Field

The utility model belongs to the technical field of mechanical transmission technique and specifically relates to an engine drive device.

Background

In the prior art, a driving device is usually realized by using a multi-stage gear transmission mechanism, a belt transmission mechanism or a clutch mechanism, the application of the mechanisms can not realize the rapid connection and disconnection switching of power, the failure which temporarily occurs in the transmission can not be timely protected, meanwhile, the mechanism is complex, the whole weight is increased, the transmission efficiency is poor, in addition, the volume of the mechanism is large, the complexity is high, the reliability is poor, and the failure rate of accessories is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a safe and reliable, operating condition is stable and can realize the engine drive who joins fast or throw off.

The utility model discloses a realize through following technical scheme:

an engine driving device comprises a driving part and a driven part, wherein the driving part comprises a driving shaft, a driving shaft sleeve and a driving wheel, the axial direction of the driving shaft is set to be the left-right direction,

the driving shaft sleeve is rotatably sleeved on the driving shaft, the driving wheel is fixedly sleeved at the left end of the driving shaft sleeve, and an inner hole of the driving shaft sleeve is a conical inner hole with a small left and a large right;

the passive part comprises a passive shaft sleeve and a passive wheel, the passive shaft sleeve is slidably sleeved on the driving shaft and can slide back and forth along the axial direction of the driving shaft, the left section of the passive shaft sleeve extends into the tapered inner hole of the driving shaft sleeve, the shape of the left section outer side wall of the passive shaft sleeve is matched with that of the tapered inner hole of the driving shaft sleeve, the right section of the passive shaft sleeve extends out of the tapered inner hole of the driving shaft sleeve and is fixedly sleeved with the passive wheel, the middle section of the driving shaft is provided with a limiting convex ring protruding outwards along the radial direction, a limiting groove for embedding the limiting convex ring is formed in the inner hole of the passive shaft sleeve, the axial size of the limiting groove is larger than that of the limiting convex ring, the outer side wall of the limiting boss is in a conical shape with a large left side and a small right side, correspondingly, the bottom wall of the, the right side wall of the limiting groove is in fit with the right end face of the limiting convex ring to block and limit; when the driven shaft sleeve is positioned at the right limit position, the left side wall of the limit groove is attached to the left end face of the limit convex ring to block and limit; the driven shaft sleeve is positioned at the right limit position in a natural state through a first reset mechanism;

the driven shaft sleeve is provided with a plurality of radial through holes around the limit convex ring, the radial through holes are uniformly distributed along the circumferential direction of the limit convex ring, a short shaft is arranged in each radial through hole, the shape of the inner end face of the short shaft is matched with the shape of the outer side wall of the limit convex ring, the shape of the outer end face of the short shaft is matched with the shape of the hole wall of the conical inner hole of the driving shaft sleeve, a friction plate is fixed on the outer end face of the short shaft, the short shaft can move in the corresponding radial through hole in the radial direction, and the short shaft is reset towards the direction close to the axis of the driving shaft under the natural state;

the outer side wall of the left section of the driven shaft sleeve is also provided with a plurality of radial locking inner holes, the plurality of radial locking inner holes are uniformly distributed along the circumferential direction of the driven shaft sleeve, and each radial locking inner hole is provided with a lock pin; the wall of the conical inner hole of the driving shaft sleeve is provided with a plurality of radial locking outer holes which are uniformly distributed along the circumferential direction of the driving shaft sleeve, when the driven shaft sleeve is positioned at a left limit position, the plurality of radial locking outer holes are in one-to-one corresponding butt connection and communication with the plurality of radial locking inner holes, and the lock pin is completely positioned in the radial locking inner holes in a natural state through a third resetting mechanism; under the action of centrifugal force, the lock pin moves outwards until a part of the lock pin is inserted into the radial locking outer hole.

Further, the inside first lubrication oil duct that has opened of driving shaft, the inside second lubrication oil duct that has opened of initiative axle sleeve, clearance intercommunication between first lubrication oil duct one end and spacing bulge loop and the spacing recess, the sealed butt joint of the one end of first lubrication oil duct other end and second lubrication oil duct, the external lubricating oil of the other end of second lubrication oil duct.

Furthermore, first canceling release mechanical system includes first reset spring, passive axle sleeve right-hand member is equipped with spacing end plate, first reset spring is located between the spacing end plate of driving shaft right-hand member and passive axle sleeve.

Furthermore, the second reset mechanism comprises a second reset spring, the radial through hole of the driven shaft sleeve is a stepped hole with a large inner part and a small outer part, a limit ring is arranged at the inner end of the short shaft, the second reset spring is sleeved on the short shaft, and the second reset spring is positioned between the limit ring of the short shaft and the stepped surface of the radial through hole of the driven shaft sleeve.

Further, the passive shaft sleeve is a split structure formed by assembling a conical shaft sleeve and a circular shaft sleeve, the conical shaft sleeve is in threaded connection with the circular shaft sleeve, the outer side wall of the conical shaft sleeve is matched with the conical inner hole of the active shaft sleeve, the driven wheel is sleeved on the outer side wall of the circular shaft sleeve, and the inner wall of the part, connected with the circular shaft sleeve, of the conical shaft sleeve forms the limiting groove.

Furthermore, the outer side wall of the driving shaft sleeve is in a stepped shaft shape with a small left and a large right, the driving wheel is installed on the small shaft end of the driving shaft sleeve, and the small shaft end inner hole of the driving shaft sleeve is rotatably sleeved on the driving shaft through a bearing.

Furthermore, the driven shaft sleeve is connected with the driving shaft through a spline.

Furthermore, the third reset mechanism is a third reset spring, the third reset spring is arranged in the radial locking outer hole, and the lock pin is abutted against the radial locking inner hole through the third reset spring.

Compared with the prior art, the utility model has the following advantages:

1. the utility model provides an engine driving device, which adopts conical surface sliding fit between the outer side wall of the limit convex ring of the driving shaft and the bottom wall of the limit groove of the driven shaft sleeve and between the outer side wall of the driven shaft sleeve and the inner side wall of the driving shaft sleeve, thereby realizing the conversion of axial motion into radial motion, and further realizing the rapid engagement or disengagement between the driving part and the driven part; the design of the bidirectional conical surface can realize transition in power transmission, and a transition period is formed from initial contact to contact, so that impact load caused in instant power transmission can be avoided, damage to parts is effectively avoided, and the reliability of the whole driving device is improved; and the design of the bidirectional conical surface has the advantages of simple structure, compact layout, light overall weight and high transmission efficiency.

2. The utility model provides an engine driving device, it adopts the design of two-way conical surface, cooperates the cooperation of a plurality of minor axes simultaneously, realizes power transmission through the cooperation of the friction disc of minor axis outer terminal surface and the inside wall of initiative axle sleeve, adopts the friction disc as the medium of power transmission, can skid when the gear jamming, has effectively avoided the risk of gear damage and broken axle; if the friction plate is abraded, the friction plate can be replaced quickly, the maintenance convenience is good, the friction plate is low in price and convenient to obtain materials, and the friction plate can be used in mechanism transmission of different occasions.

3. The utility model provides a pair of engine drive device, it is opened on the lateral wall of passive axle sleeve has a plurality of radial locking holes, it has a plurality of radial locking outer holes to open on the toper hole pore wall of initiative axle sleeve, under the effect of centrifugal force, thereby the lockpin just can outwards remove and even be as an organic whole with radial locking hole and radial locking outer hole, thereby realize the quick locking of initiative portion and driven part, the locking is effectual, can avoid the accident that leads to suddenly droing in rotatory operation at whole drive arrangement.

4. The utility model provides a pair of engine drive device, the first lubricated oil duct of accessible and the lubricated oil duct of second realize the lubrication to two conical surface complex fit clearance, can produce the oil film between two spare parts of relative motion, reduce friction and power consumption.

5. The utility model provides a pair of engine drive device adopts splined connection between its driven shaft sleeve and the driving shaft, can realize that transmission torque is big, avoids appearing power loss such as skid, is applicable to the device that the functional attachment is many, demand power is big, has guaranteed the transmission precision, has reduced the noise, has promoted reliability and stability.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a longitudinal sectional view of the driving part and the driven part of the present invention in a joined state.

Fig. 3 is a longitudinal sectional view of the driving part and the driven part of the present invention in a separated state.

Fig. 4 is a sectional view taken along line a-a of fig. 2.

Fig. 5 is a sectional view taken along line B-B of fig. 2.

Fig. 6 is a cross-sectional view of C-C of fig. 2.

Reference numbers in the figures: the lubricating device comprises a driving shaft 1, a driving shaft sleeve 2, a driving wheel 3, a bearing 4, a conical shaft sleeve 5, a circular shaft sleeve 6, a driven wheel 7, a limiting convex ring 8, a limiting groove 9, a radial through hole 10, a short shaft 11, a friction plate 12, a radial locking inner hole 13, a locking pin 14, a radial locking outer hole 15, a spline 16, a first lubricating oil channel 17, a second lubricating oil channel 18, a first return spring 19, a limiting end plate 20, a second return spring 21 and a third return spring 22.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Referring to fig. 1 to 6, the present embodiment discloses an engine driving apparatus including an active portion and a passive portion.

The driving part comprises a driving shaft 1, a driving shaft sleeve 2 and a driving wheel 3, and the axial direction of the driving shaft 1 is set to be the left-right direction. The driving shaft sleeve 2 is rotatably sleeved on the driving shaft 1, the driving wheel 3 is fixedly sleeved at the left end of the driving shaft sleeve 2, and an inner hole of the driving shaft sleeve 2 is a conical inner hole with a small left side and a large right side. The outer side wall of the driving shaft sleeve 2 is in a stepped shaft shape with a small left and a large right, the driving wheel 3 is fixedly sleeved on the small shaft end of the driving shaft sleeve 2, and the inner hole of the small shaft end of the driving shaft sleeve 2 is rotatably sleeved on the driving shaft 1 through a bearing 4.

The driven part comprises a driven shaft sleeve and a driven wheel 7, the driven shaft sleeve is slidably sleeved on the driving shaft 1 and can slide back and forth along the axial direction of the driving shaft 1, and the driven shaft sleeve is connected with the driving shaft 1 through a spline 16. The left section of the driven shaft sleeve extends into a conical inner hole of the driving shaft sleeve 2, the outer side wall of the left section of the driven shaft sleeve is matched with the shape of the conical inner hole of the driving shaft sleeve 2, the right section of the driven shaft sleeve extends out of the conical inner hole of the driving shaft sleeve 2 and is fixedly sleeved with a driven wheel 7, a limiting convex ring 8 protruding outwards in the radial direction is arranged on the middle section of the driving shaft 1, a limiting groove 9 for embedding the limiting convex ring 8 is formed in the inner hole of the driven shaft sleeve, the axial size of the limiting groove 9 is larger than that of the limiting convex ring 8, the outer side wall of the limiting boss is in a conical shape with a large left side and a small right side, correspondingly, the bottom wall of the limiting groove 9 is in a conical shape matched with the outer side wall of the limiting boss, and when the driven shaft sleeve is located at a left; when the driven shaft sleeve is positioned at the right limit position, the left side wall of the limit groove 9 is attached to the left end face of the limit convex ring 8 to block and limit; the driven shaft sleeve is in a right limit position in a natural state through the first reset mechanism.

The driven shaft sleeve is provided with a plurality of radial through holes 10 around the limiting convex ring 8, the driven shaft sleeve is designed into four radial through holes 10 in the embodiment, the four radial through holes 10 are uniformly distributed along the circumferential direction of the limiting convex ring 8, each radial through hole 10 is provided with a short shaft 11, the shape of the inner end face of each short shaft 11 is matched with the shape of the outer side wall of the limiting convex ring 8, the shape of the outer end face of each short shaft 11 is matched with the shape of the hole wall of the conical inner hole of the driving shaft sleeve 2, a friction plate 12 is fixed on the outer end face of each short shaft 11, each short shaft 11 can move in the corresponding radial through hole 10 in the radial direction, and the short shafts 11 are reset towards the direction close to the.

The outer side wall of the left section of the driven shaft sleeve is also provided with a plurality of radial locking inner holes 13, the driven shaft sleeve is designed into four radial locking inner holes 13 in the embodiment, the four radial locking inner holes 13 are uniformly distributed along the circumferential direction of the driven shaft sleeve, and a lock pin 14 is arranged in each radial locking inner hole 13; four radial locking outer holes 15 are formed in the wall of a conical inner hole of the driving shaft sleeve 2, the four radial locking outer holes 15 are uniformly distributed along the circumferential direction of the driving shaft sleeve 2, when the driven shaft sleeve is positioned at the left limit position, the four radial locking outer holes 15 are correspondingly communicated with the four radial locking inner holes 13 in a one-to-one abutting mode, and the lock pin 14 is completely positioned in the radial locking inner holes 13 in a natural state through a third reset mechanism; under the effect of centrifugal force, the locking pin 14 moves outwards until a portion of the locking pin 14 is inserted into the radially outer locking hole 15.

Specifically, for convenient assembly, the passive axle sleeve is the split type structure that is formed by the assembly of taper bush 5 and circular axle sleeve 6, and threaded connection between taper bush 5 and the circular axle sleeve 6, the lateral wall through taper bush 5 cooperatees with the toper hole of initiative axle sleeve 2, and driven wheel 7 suit is on 6 lateral walls of circular axle sleeve, and the inner wall at the position that taper bush 5 and circular axle sleeve 6 are connected forms spacing recess 9.

Specifically, a first lubricating oil channel 17 is formed in the driving shaft 1, a second lubricating oil channel 18 is formed in the driving shaft sleeve 2, one end of the first lubricating oil channel 17 is communicated with a gap between the limiting convex ring 8 and the limiting groove 9, the other end of the first lubricating oil channel 17 is in sealed butt joint with one end of the second lubricating oil channel 18, the other end of the second lubricating oil channel 18 is in sealed butt joint with an oil channel of the cylinder body, lubricating oil is introduced into the second lubricating oil channel 18 through the oil channel of the cylinder body, an additional lubricating source is not needed, and cost improvement brought by an additional lubricating device is saved.

Specifically, the first reset mechanism comprises a first reset spring 19, a limit end plate 20 is arranged at the right end of the driven shaft sleeve, and the first reset spring 19 is located between the right end of the driving shaft 1 and the limit end plate 20 of the driven shaft sleeve. The left and right movement adjustment and buffering functions of the passive shaft sleeve are realized through the first return spring 19.

The second reset mechanism comprises a second reset spring 21, the radial through hole 10 of the driven shaft sleeve is a stepped hole with a large inner part and a small outer part, a limit ring is arranged at the inner end of the short shaft 11, the second reset spring 21 is sleeved on the short shaft 11, and the second reset spring 21 is positioned between the limit ring of the short shaft 11 and the stepped surface of the radial through hole 10 of the driven shaft sleeve.

The third return mechanism is a third return spring 22, the third return spring 22 is arranged in the radial locking outer hole 15, and the lock pin 14 is abutted against the radial locking inner hole 13 through the third return spring 22.

During operation, install this drive arrangement in the gear room of cylinder body, drive arrangement's action wheel 3 is connected with the driving source, and drive arrangement's follow driving wheel meshes with drive gear mutually, realizes the quick coupling of power or breaks away from between driving source and the drive gear through this drive arrangement, and concrete process is:

the driven shaft sleeve is pushed leftwards, the driven shaft sleeve moves leftwards, the four short shafts 11 move leftwards along the conical surface of the limiting convex ring 8, in the process, the four short shafts 11 expand outwards along the radial direction, so that friction plates 12 on the outer end faces of the four short shafts 11 are tightly attached to the hole wall of a conical inner hole of the driving shaft sleeve 2, at the moment, the driven shaft sleeve is connected with the driving shaft sleeve 2, and the driven shaft sleeve can rotate along with the driving shaft sleeve 2; meanwhile, under the action of centrifugal force, the centrifugal force overcomes the elastic force of the third return spring 22 to drive the four lock pins 14 to move outwards until a part of the lock pins 14 are inserted into the radial locking outer holes 15, so that the back-off safety is realized, and the driving part and the driven part are prevented from being disengaged accidentally. I.e. the joining is completed.

When the rotating speed of the driving wheel 3 is low or the rotation is stopped, the elastic force of the third return spring 22 overcomes the centrifugal force, and the four lock pins 14 are separated from the radial locking outer holes 15 under the action of the third return spring 22 and completely enter the radial locking inner holes 13; at the moment, under the action of the first return spring 19, the driven shaft sleeve moves rightwards to return; in the process, under the action of the second return spring 21, the four short shafts 11 move inwards in the radial direction, so that the friction plates 12 at the outer ends of the four short shafts 11 are separated from the hole wall of the conical inner hole of the driving shaft sleeve 2, and the driving part and the driven part are completely separated.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. An engine drive device, includes initiative portion and passive portion, its characterized in that: the driving part comprises a driving shaft (1), a driving shaft sleeve (2) and a driving wheel (3), the axial direction of the driving shaft (1) is set to be the left-right direction,

the driving shaft sleeve (2) is rotatably sleeved on the driving shaft (1), the driving wheel (3) is fixedly sleeved at the left end of the driving shaft sleeve (2), and an inner hole of the driving shaft sleeve (2) is a conical inner hole with a small left and a large right;

the passive part comprises a passive shaft sleeve, a passive wheel (7), the passive shaft sleeve is slidably sleeved on the driving shaft (1) and can slide back and forth along the axial direction of the driving shaft (1), the left section of the passive shaft sleeve extends into the conical inner hole of the driving shaft sleeve (2), the outer side wall of the left section of the passive shaft sleeve is matched with the conical inner hole of the driving shaft sleeve (2), the right section of the passive shaft sleeve extends out of the conical inner hole of the driving shaft sleeve (2) and is fixedly sleeved with the passive wheel (7), the middle section of the driving shaft (1) is provided with a limiting convex ring (8) protruding outwards along the radial direction, a limiting groove (9) for embedding the limiting convex ring (8) is formed in the inner hole of the passive shaft sleeve, the axial size of the limiting groove (9) is larger than that of the limiting convex ring (8), the outer side wall of the limiting convex ring is in a, the bottom wall of the limiting groove (9) is in a conical shape matched with the outer side wall of the limiting boss, and when the driven shaft sleeve is located at a left limiting position, the right side wall of the limiting groove (9) is in fit with the right end face of the limiting convex ring (8) to block limiting; when the driven shaft sleeve is positioned at the right limit position, the left side wall of the limit groove (9) is attached to the left end face of the limit convex ring (8) to block and limit; the driven shaft sleeve is positioned at the right limit position in a natural state through a first reset mechanism;

the driven shaft sleeve is provided with a plurality of radial through holes (10) around the limiting convex ring (8), the radial through holes (10) are uniformly distributed along the circumferential direction of the limiting convex ring (8), each radial through hole (10) is internally provided with a short shaft (11), the shape of the inner end face of each short shaft (11) is matched with the shape of the outer side wall of the limiting convex ring (8), the shape of the outer end face of each short shaft (11) is matched with the shape of the hole wall of a conical inner hole of the driving shaft sleeve (2), a friction plate (12) is fixed on the outer end face of each short shaft (11), the short shafts (11) can move in the corresponding radial through holes (10) in the radial direction, and the short shafts (11) can reset in the direction close to the axis of the driving shaft (1) in a natural state through a second resetting;

the outer side wall of the left section of the driven shaft sleeve is also provided with a plurality of radial locking inner holes (13), the plurality of radial locking inner holes (13) are uniformly distributed along the circumferential direction of the driven shaft sleeve, and a lock pin (14) is arranged in each radial locking inner hole (13); the wall of the conical inner hole of the driving shaft sleeve (2) is provided with a plurality of radial locking outer holes (15), the plurality of radial locking outer holes (15) are uniformly distributed along the circumferential direction of the driving shaft sleeve (2), when the driven shaft sleeve is positioned at the left limit position, the plurality of radial locking outer holes (15) are in one-to-one corresponding butt connection communication with the plurality of radial locking inner holes (13), and the lock pin (14) is completely positioned in the radial locking inner holes (13) in a natural state through a third resetting mechanism; under the action of centrifugal force, the lock pin (14) moves outwards until a part of the lock pin (14) is inserted into the radial locking outer hole (15).

2. An engine drive apparatus as defined in claim 1, wherein: the lubricating oil lubricating device is characterized in that a first lubricating oil channel (17) is formed in the driving shaft (1), a second lubricating oil channel (18) is formed in the driving shaft sleeve (2), one end of the first lubricating oil channel (17) is communicated with a gap between the limiting convex ring (8) and the limiting groove (9), the other end of the first lubricating oil channel (17) is in sealed butt joint with one end of the second lubricating oil channel (18), and the other end of the second lubricating oil channel (18) is externally connected with lubricating oil.

3. An engine drive apparatus as defined in claim 1, wherein: the first reset mechanism comprises a first reset spring (19), the right end of the driven shaft sleeve is provided with a limiting end plate (20), and the first reset spring (19) is located between the right end of the driving shaft (1) and the limiting end plate (20) of the driven shaft sleeve.

4. An engine drive apparatus as defined in claim 1, wherein: the second reset mechanism comprises a second reset spring (21), the radial through hole (10) of the driven shaft sleeve is a step hole with a large inner part and a small outer part, a limit ring is arranged at the inner end of the short shaft (11), the second reset spring (21) is sleeved on the short shaft (11), and the second reset spring (21) is positioned between the limit ring of the short shaft (11) and the step surface of the radial through hole (10) of the driven shaft sleeve.

5. An engine drive apparatus as defined in claim 1, wherein: the passive shaft sleeve is a split structure formed by assembling a conical shaft sleeve (5) and a circular shaft sleeve (6), the conical shaft sleeve (5) is in threaded connection with the circular shaft sleeve (6), the outer side wall of the conical shaft sleeve (5) is matched with a conical inner hole of the driving shaft sleeve (2), a driven wheel (7) is sleeved on the outer side wall of the circular shaft sleeve (6), and the inner wall of the part, connected with the circular shaft sleeve (6), of the conical shaft sleeve (5) forms a limiting groove (9).

6. An engine drive apparatus as defined in claim 1, wherein: the outer side wall of the driving shaft sleeve (2) is in a stepped shaft shape with a small left side and a large right side, the driving wheel (3) is installed on the small shaft end of the driving shaft sleeve (2), and the small shaft end inner hole of the driving shaft sleeve (2) is rotatably sleeved on the driving shaft (1) through a bearing (4).

7. An engine drive apparatus as defined in claim 1, wherein: the driven shaft sleeve is connected with the driving shaft (1) through a spline (16).

8. An engine drive apparatus as defined in claim 1, wherein: the third reset mechanism is a third reset spring (22), the third reset spring (22) is arranged in the radial locking outer hole (15), and the lock pin (14) is abutted against the radial locking inner hole (13) through the third reset spring (22).

Images