CN114992290B

CN114992290B - Multi-clutch power output device

Info

Publication number: CN114992290B
Application number: CN202210844285.1A
Authority: CN
Inventors: 冯守亮; 柏丽敏; 马银
Original assignee: Technological Vocational College Of Dezhou; Yantai Boyu Automation Equipment Co ltd
Current assignee: Technological Vocational College Of Dezhou; Yantai Boyu Automation Equipment Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-10-25
Anticipated expiration: 2042-07-19
Also published as: CN114992290A

Abstract

The invention relates to the technical field of vehicle transmission devices, in particular to a multi-clutch power output device which comprises a box body, a power input shaft rotationally arranged on the wall of the box body, at least two output shafts rotationally arranged on the wall of the box body, and a power conversion driving mechanism arranged on the wall of the box body, wherein the power conversion driving mechanism acts on the output shafts to realize the switching between the rotation and the rest of each output shaft and the switching of the rotation direction of each output shaft, and comprises a plurality of clutches which are driven by a thrust rod to realize the independent joint and separation of each clutch.

Description

Power output device with multiple clutches

Technical Field

The invention relates to the technical field of vehicle transmission devices, in particular to a power output device with multiple clutches.

Background

The large and medium-sized agricultural machinery generally adopts a mechanical power output device, the mechanical power output device has stronger operation stability but is often complex in structure, and a gear synchronous rotating structure is often adopted to output power, if various power shaft outputs are realized, the output can be realized by a more complex structure, the operation difficulty of each process from production, processing to installation and later maintenance is invisibly increased, so that the agricultural machinery in the prior art is complex in structure, the requirement of multi-shaft power selective output required to be realized in the production working condition can not be met, and the gear synchronous rotating structure can not realize the switching of power output modes in rotation; in the prior art, a patent with the name of 'a multi-power output device with a clutch, with the publication number of CN 105799498B' is disclosed, although multi-power output is realized to a certain extent, the power switching process is complex, and the realized function is single; secondly, can't realize the output of multiple power in order to satisfy easy operation's realistic demand through same root gear shifting shaft.

Disclosure of Invention

The invention provides a multi-clutch power output device aiming at the defects in the prior art, and aims to solve the technical problems of complex structure and poor output control flexibility of the power output device in the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a have multi-clutch power take-off, includes the box, rotates power input shaft and two at least output shafts of installing on the box wall of installing, still includes the power conversion actuating mechanism of installing on the box wall, and this power conversion actuating mechanism acts on the output shaft in order to realize each output shaft rotation and static switching and each output shaft direction of rotation's switching, and this power conversion actuating mechanism includes and realizes independently laminating and a plurality of clutches of separation separately by a distance rod drive.

The output shaft comprises an output shaft a and an output shaft b, the number of the clutches is three, the clutches are a clutch a, a clutch b and a clutch c, the clutch a is used for driving the output shaft a to rotate by the power input shaft, the clutch b is used for driving the output shaft b to rotate by the power input shaft, and the clutch b and the clutch c simultaneously act to realize the simultaneous rotation of the output shaft a and the output shaft b

The beneficial effects of the invention are: the rotating and static switching of each output shaft in the rotating process and the rotating direction switching of each output shaft are realized through the power conversion driving mechanism by only arranging one thrust rod to drive a plurality of clutches which act independently, the complex structure of agricultural machinery in the prior art is greatly simplified, and the conversion output requirement of various power combinations in the rotation process is realized through the power conversion driving mechanism.

On the basis of the technical scheme, the invention can be improved as follows.

Further, the clutch a comprises a friction disc a, an abutting disc a and a shaft sleeve a fixedly installed on the output shaft a, the friction disc a is coaxially and rotatably installed on the output shaft a, the abutting disc a is axially and slidably installed on the shaft sleeve a, the abutting disc a is attached to and separated from the friction disc a under the action of the thrust rod and the reset mechanism, and the rotation and the rest of the output shaft a are realized;

the clutch b comprises a friction disc b and an abutting disc b, the friction disc b is coaxially and rotatably mounted on the output shaft a, the abutting disc b is axially and slidably mounted on the third-stage driven wheel a, the abutting disc b is attached to and separated from the friction disc b under the action of the thrust rod and the reset mechanism, and the third-stage driven wheel a and the output shaft b are in meshing transmission through a bevel gear to realize rotation and static state of the output shaft b;

the clutch c comprises a friction disc c, a butt joint disc c and a shaft sleeve c fixedly installed on the output shaft a, the friction disc c is driven by a three-stage driven wheel a to rotate, the butt joint disc c is axially installed on the shaft sleeve c in a sliding mode, the butt joint disc c is attached to and separated from the friction disc c under the action of a thrust rod and a reset mechanism, and the output shaft a and the output shaft b rotate and are static.

The beneficial effect who adopts above-mentioned further scheme is that, through the concrete structure who sets up three clutches, realize that three clutches control the demand that realizes three kinds of power take off respectively, be output shaft a's rotation respectively, output shaft b's rotation and output shaft a and output shaft b rotate simultaneously, satisfy agricultural machine's multiple power take off demand.

Furthermore, the reset mechanism comprises an elastic part and press covers, the butt joint disk a, the butt joint disk b and the butt joint disk c are all provided with elastic part mounting grooves along the axial direction, the elastic part is mounted in the elastic part mounting grooves, the other end of the elastic part abuts against the press covers, and the three press covers are detachably mounted on the shaft sleeve a, the three-stage driven wheel a and the shaft sleeve c;

and a radial sliding groove is arranged on the mounting hole in sliding fit between the butt joint disc a and the shaft sleeve a, and the sliding groove is inserted into the guide block arranged on the shaft sleeve a along the axial direction in sliding fit.

The clutch has the advantages that the clutch is automatically reset by arranging the reset mechanism, and stable operation of each pair of connecting discs is realized by arranging the sliding groove and the guide block.

Furthermore, three connecting rods acting on the butt joint disc a, the butt joint disc b and the butt joint disc c respectively are installed on the thrust rod, one end of each connecting rod is installed on the thrust rod in a sliding mode through a sliding sleeve, a thrust block is installed at the other end of each connecting rod and inserted into annular grooves of the butt joint disc a, the butt joint disc b and the butt joint disc c, the sliding sleeves at the end portions of the three connecting rods are connected with three fixed blocks on the thrust rod through elastic elements respectively, and the three fixed blocks are all fixedly installed on the thrust rod;

the thrust bar passes through support frame and box relative slip installation, the tip that the power end of thrust bar passes through universal pivot and actuating lever rotates to be connected, the conversion on the change-over panel is installed to the other end of actuating lever is downthehole, still install on the rotation axis seat through the pivot that runs through it between the both ends of actuating lever, this rotation axis seat fixed mounting is on the vehicle, set up the slide opening of four parallel hole sites of four hole sites of intercommunication on the change-over panel, the drive end of actuating lever is corresponding action of each clutch when being in four hole sites in proper order and is respectively: only clutch a is attached in the first hole site, all clutches are not attached in the second hole site, clutch b is attached in the third hole site, and clutch b and clutch c are both attached in the fourth hole site.

The beneficial effect of adopting above-mentioned further scheme is that, through setting up the combination of change-over plate, actuating lever, distance rod and fixed block, elastic element, connecting rod and thrust block, switch through the hole site of the power end of operation distance rod on the change-over plate, and then drive different butt joint dish and the friction disk that corresponds and laminate, realize the action of different clutches.

The switch lock comprises a lock rod and a clamping seat, the bottom of the lock rod is vertically and slidably mounted on the clamping seat, the top of the lock rod is located inside the clamping seat and is propped against the inner wall of the box body through an elastic piece, the top of the lock rod is connected with one end, far away from the universal rotating shaft, of the thrust rod through a pull wire, a flexible sleeve which slides relative to the pull wire is sleeved outside the pull wire, and the flexible sleeve is mounted on the inner wall of the box body.

The beneficial effect who adopts above-mentioned further scheme is through setting up the switch lock, realizes when butt joint dish b and friction disk b tentatively laminate, and butt joint dish c and friction disk c are in the separation state, and when the thrust rod moved certain stroke, butt joint dish c and friction disk c just laminated.

Further, fixed mounting action wheel on the power input shaft, fixed mounting and action wheel meshing driven one-level follower on the output shaft a, this one-level follower rotates and installs on output shaft a, friction disk a and the coaxial fixed mounting of friction disk b are at one-level follower both ends, to the left side that disk a is located friction disk a, to disk a's annular be located one side that disk a was kept away from to disk a, to disk b being located friction disk b's right side, to disk b's annular be located one side that disk b was kept away from to disk b, to disk c being located friction disk c's right side, to disk c's annular be located one side that disk c was kept away from to disk c.

The thrust rod has the advantages that the thrust rod drives the butt joint discs and the friction discs when acting by setting the position relation of the butt joint discs and the friction discs.

Furthermore, the output shaft b is in meshing transmission with a three-stage driven wheel b coaxially mounted on the output shaft a through a bevel gear, and the friction disc c is fixedly mounted on the three-stage driven wheel b; or the friction disc c is fixedly arranged on the three-stage driven wheel a.

Adopt above-mentioned further scheme's beneficial effect to be, install friction disk c on tertiary follower b or tertiary follower a through the setting, output shaft a reaches different directions of turning to when realizing clutch c laminating.

Furthermore, inner bevel gears are coaxially arranged on the opposite sides of the three-stage driven wheel a and the three-stage driven wheel b, the two inner bevel gears are in meshing transmission with the bevel teeth of the supporting driven wheel, and the supporting driven wheel is rotatably arranged on the box body; an output shaft c is rotatably arranged on the box body, and the output shaft c is in meshing transmission through a bevel gear or a cylindrical gear by a power input shaft.

Adopt above-mentioned further scheme's beneficial effect to be, through setting up output shaft c, increase power take off.

Drawings

FIG. 1 is a schematic cross-sectional view illustrating a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view illustrating a second embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view illustrating a third embodiment of the present invention;

FIG. 4 is a first perspective view of the power conversion driving mechanism;

FIG. 5 is a schematic perspective view of a second power conversion driving mechanism;

FIG. 6 is a front view of the power conversion drive mechanism;

FIG. 7 is an enlarged partial view of FIG. 1 at A;

FIG. 8 is an enlarged partial view of FIG. 1 at B;

fig. 9 is a partially enlarged view of C in fig. 5.

In the figure, 1, a shell a,2, a driving wheel, 3, a power input shaft, 4, a first-stage driven wheel, 6, an output shaft a,7, a shaft sleeve a,8, an elastic part, 9, a gland, 10, an abutting plate a,11, a friction disc a,12, a friction disc b,13, an abutting plate b,14, a third-stage driven wheel a,15, an output shaft b,16, a third-stage driven wheel b,17, a friction disc c,18, an abutting plate c,19, a supporting driven wheel, 20, a supporting rotating shaft, 21, a shell b,22, a shaft sleeve c,23, a thrust rod, 24, a sliding sleeve, 25, an elastic element, 26, a fixed block, 27, a universal rotating shaft, 28, a driving rod, 29, a conversion plate, 30, a connecting rod, 31, a sliding groove, 32, a thrust block, 34, 35, a ring groove, 36, an elastic part mounting groove, 37, an output shaft c,38, a pull wire, 39, a clamping seat, 40, an elastic element, 41, a locking rod, 42, a first hole position, a second hole position, a third hole, a fourth hole and a fourth hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example one

Referring to fig. 1 and fig. 4-9, a multi-clutch power output device includes a box (the box includes a housing a1 and a housing b21, the housing a1 and the housing b21 are detachably mounted by screws), a power input shaft 3 rotatably mounted on a wall of the box, and an output shaft a6 and an output shaft b15 rotatably mounted on a wall of the box, the power input shaft 3, the output shaft a6 and the output shaft b15 are rotatably mounted on the box by bearings, and the multi-clutch power output device further includes a power conversion driving mechanism mounted on a wall of the box, the power conversion driving mechanism acts on the output shafts to realize the switching between the rotation and the rest of the output shafts and the switching of the rotation direction of the output shafts, the power conversion driving mechanism includes three clutches which are driven by a thrust rod 23 to realize the independent joint and separation, and are respectively a clutch a, a clutch b and a clutch c, the clutch a is used for realizing the rotation of the output shaft a6 driven by the power input shaft 3, the clutch b is used for realizing the rotation of the output shaft b15 driven by the power input shaft 3, and the clutch b and the clutch c are simultaneously acting to realize the simultaneous rotation of the output shaft a6 and the output shaft b 15.

Referring to fig. 1 and fig. 4 to 6, the clutch a includes a friction disc a11, an abutment disc a10 and a shaft sleeve a7 fixedly mounted on the output shaft a6, the friction disc a11 is coaxially and rotatably mounted on the output shaft a6, the abutment disc a10 is horizontally and slidably mounted on the shaft sleeve a7, and the abutment disc a10 is attached to and separated from the friction disc a11 under the action of a thrust rod 23 and a reset mechanism, so as to rotate and stop the output shaft a 6. The clutch b comprises a friction disc b12 and a butt joint disc b13, the friction disc b12 is coaxially installed on an output shaft a6 in a rotating mode, the butt joint disc b13 is installed on a three-stage driven wheel a14 in a sliding mode, the butt joint disc b13 is attached to and separated from the friction disc b12 under the action of a thrust rod 23 and a reset mechanism, the three-stage driven wheel a14 and the output shaft b15 are in meshing transmission through a bevel gear, and the rotation and the rest of the output shaft b15 are achieved. The clutch c comprises a friction disc c17, an abutting disc c18 and a shaft sleeve c22 fixedly installed on the output shaft a6, the friction disc c17 is driven to rotate by a three-stage driven wheel a14, the abutting disc c18 is installed on the shaft sleeve c22 in a sliding mode, the abutting disc c18 is attached to and separated from the friction disc c17 under the action of a thrust rod 23 and a reset mechanism, and the output shaft a6 and the output shaft b15 rotate and are static at the same time. Only one thrust rod 23 is arranged to drive three clutches which independently act, and further the power conversion driving mechanism is used for realizing the switching between rotation and static in the rotation process of each output shaft and the switching of the rotation direction of each output shaft, so that the complex structure of the agricultural machinery in the prior art is greatly simplified, and the conversion output requirement of various power combinations in the rotation process is realized through the power conversion driving mechanism; through the specific structure that sets up three clutches, realize that three clutches control the demand that realizes three kinds of power take off respectively, be output shaft a 6's rotation respectively, output shaft b 15's rotation and output shaft a6 and output shaft b15 rotate simultaneously, satisfy agricultural machine's multiple power take off demand.

Referring to fig. 1 and 7, the reset mechanism includes an elastic portion 8 and a pressing cover 9, the elastic portion 8 is a spring, the abutting plate a10, the abutting plate b13 and the abutting plate c18 are all provided with an elastic portion mounting groove 36 along the axial direction, the elastic portion 8 is mounted in the elastic portion mounting groove 36, the other end of the elastic portion 8 abuts against the pressing cover 9, the three pressing covers 9 are detachably mounted on the shaft sleeve a7, the third-stage driven wheel a14 and the shaft sleeve c22, referring to fig. 4 and 5, a radial sliding groove 31 is arranged on a mounting hole in sliding fit between the abutting plate a10 and the shaft sleeve a7, and the sliding groove 31 is inserted into and in sliding fit with a guide block arranged on the shaft sleeve a7 along the axial direction. The automatic reset of the clutch is realized by arranging the reset mechanism, and the stable operation of each pair of flange plates is realized by arranging the sliding chute 31 and the guide block.

Referring to fig. 4-6, three connecting rods 30 are mounted on the thrust rod 23 and respectively act on the docking tray a10, the docking tray b13 and the docking tray c18, the connecting rod 30 is configured in a V-shaped structure, or in a U-shaped structure, one end of the connecting rod 30 is slidably mounted on the thrust rod 23 through a sliding sleeve 24, the other end of the connecting rod 30 is respectively mounted with two thrust blocks 32, the thrust blocks 32 are inserted into annular grooves 35 formed in the docking tray a10, the docking tray b13 and the docking tray c18, the sliding sleeves 24 at the ends of the three connecting rods 30 are respectively connected with three fixed blocks 26 on the thrust rod 23 through elastic elements 25 (the elastic elements 25 are springs), the three fixed blocks 26 are all fixedly mounted on the thrust rod 23, wherein the elastic coefficient of the elastic element 25 corresponding to the docking tray c18 is greater than that of the docking tray b13, when the same force is applied, the spring shape variable with the large elastic coefficient is small, when the thrust rod 23 applies the docking tray b13 to the friction tray b12, the clutch b is applied, and the friction tray c18 is almost not displaced, and when the stroke of the thrust rod 23 reaches a certain degree, the friction tray 18 c starts to move to the clutch 17 c under the action of the friction tray c. Thrust rod 23 passes through the support frame and installs with box relative sliding, thrust rod 23's power end is connected through the tip rotation of universal pivot 27 with actuating lever 28, the conversion on change-over board 29 is installed downthehole to the other end of actuating lever 28, still install on pivot seat 34 through the pivot that runs through it between actuating lever 28's the both ends, this pivot seat 34 fixed mounting is on the vehicle, refer to figure 9, set up the slide opening 46 of four parallel hole sites and four hole sites of intercommunication on the change-over board 29, the one end that slide opening 46 was kept away from to four hole sites all sets up the semicircle groove, and the corresponding action of each clutch is respectively when the drive end of actuating lever 28 is in four hole sites in proper order: only clutch a is attached in the first hole position 42, all clutches are not attached in the second hole position 43, clutch b is attached in the third hole position 44, and clutch b and clutch c are both attached in the fourth hole position 45. Through the combination of the conversion plate 29, the driving rod 28, the thrust rod 23, the fixed block 26, the elastic element 25, the connecting rod 30 and the thrust block 32, the hole positions of the power end of the thrust rod 23 on the conversion plate 29 are switched through operation, so that different butt-joint discs are driven to be attached to corresponding friction discs, and the actions of different clutches are realized.

Referring to fig. 1 and 8, the switch lock for limiting the stroke of the butting disk c18 further comprises a lock rod 41 and a clamping seat 39, the bottom of the lock rod 41 is vertically and slidably mounted on the clamping seat 39, the top of the lock rod 41 is located inside the clamping seat 39 and is propped against the inner wall of the box body through an elastic piece 40 (the elastic piece 40 selects a spring for use), the top of the lock rod 41 is connected with one end, far away from the universal rotating shaft 27, of the thrust rod 23 through a pull wire 38, a flexible sleeve which slides relative to the pull wire 38 is sleeved outside the pull wire 38, and the flexible sleeve is mounted on the inner wall of the box body. When the abutting joint disc b13 is primarily attached to the friction disc b12, and only the output shaft b15 is allowed to output power, the switch lock prevents the abutting joint disc c18 from moving so that the abutting joint disc c18 is separated from the friction disc c17, when the output shaft a6 and the output shaft b15 are allowed to rotate together, the driving rod 28 drives the thrust rod 23 to move left, and when the thrust rod 23 runs to a certain stroke, the lock rod 41 of the switch lock moves towards the direction of the clamping seat 39 under the pulling force of the thrust rod 23 through the pull wire 38 until the lock rod 41 completely disengages from the abutting joint disc c18, and the abutting joint disc c18 and the friction disc c17 are allowed to be attached so as to achieve power output of the output shaft a6 and the output shaft b15, specifically, referring to fig. 5 and 6, when the thrust rod 23 drives the abutting joint disc c18 to move left, the thrust rod 23 drives one end of the pull wire 38 to pull the other end of the lock rod 41 to tighten, so that the right end of the lock rod 41 moves upwards, and the abutting joint disc c18 is unlocked.

The form of the switch lock is similar to that of a mechanical brake pull wire or a bicycle hand brake pull wire, and the switch lock comprises a flexible pull wire 38 and a flexible sleeve which is sleeved outside the pull wire 38.

Referring to fig. 1, fixed mounting action wheel 2 on the power input shaft 3, fixed mounting and action wheel 2 meshing driven one-level follower 4 on the output shaft a6, this one-level follower 4 rotates and installs on output shaft a6, the coaxial fixed mounting in one-level follower 4 both ends of friction disk a11 and friction disk b12, to dish a10 be located the left side of friction disk a11, be located one side of keeping away from friction disk a11 to dish a10 to the annular 35 of dish a10, to dish b13 be located the right side of friction disk b12, to the annular 35 of dish b13 be located one side of keeping away from friction disk b12 to dish b13, to dish c18 be located the right side of friction disk c17, to the annular 35 of dish c18 be located one side of keeping away from friction disk c17 to dish c 18. By setting the positional relationship between the abutment plates and the friction plates, the thrust rod 23 is driven to the abutment plates and the friction plates when operating. The output shaft b15 is also in meshing transmission with a three-stage driven wheel b16 coaxially mounted on the output shaft a6 through a bevel gear, and the friction disc c17 is fixedly mounted on the three-stage driven wheel b 16. The opposite sides of the three-stage driven wheel a14 and the three-stage driven wheel b16 are coaxially provided with inner bevel gears, the two inner bevel gears are in bevel gear engagement transmission with the supporting driven wheel 19, and the supporting driven wheel 19 is rotatably installed on the box body through a supporting rotating shaft 20. Through the arrangement of the three-stage driven wheel a14 and the three-stage driven wheel b16, on one hand, the phenomenon that the axial force different from that of the output shaft b15 is applied to the output shaft b15, the power output device is damaged, the service life of the power output device is influenced, on the other hand, the rotation direction different from that when the butt joint disk a10 and the friction disk a11 are attached to the output shaft a6 is achieved, the power output mode of the power output device is enriched, and the power output requirement is better met.

The working principle is as follows: the device during operation, power input shaft 3 rotates under the effect of external power drive, drives action wheel 2 synchronous revolution, and action wheel 2 drives 4 rotations rather than the one-level follower of meshing, and 4 rotations of one-level follower drive friction disk an 11 and friction disk b12 synchronous revolution, when promoting thrust rod 23 and by the first hole site 42 of second hole site 43 cunning, its theory of operation is: the fixed block 26 on the thrust rod 23 applies pressure to the elastic element 25, and further pushes the sliding sleeve 24 on the left side of the abutting joint a10 to slide in the direction close to the abutting joint a10, when the elastic force of the elastic element 25 is greater than the elastic force of the elastic part 8, the abutting joint a10 starts to move towards the friction disc a11 until the abutting joint a10 is tightly pressed and attached to the friction disc a11, so that the abutting joint a10 and the friction disc a11 are attached to rotate synchronously, and the abutting joint a10 transmits power to the output shaft a6 through the shaft sleeve a7, so that the output shaft a6 rotates; when the thrust rod 23 is pushed to slide from the second hole 43 to the third hole 44, the working principle is as follows: the fixed block 26 on the thrust rod 23 applies pressure to the elastic element 25, and further pushes the sliding sleeve 24 on the right side of the butt joint disk b13 to slide in the direction close to the butt joint disk b13, when the elastic force of the elastic element 25 is greater than the elastic force of the elastic part 8, the butt joint disk b13 starts to move towards the friction disk b12 until the butt joint disk b13 is tightly pressed and attached to the friction disk b12, so that the butt joint disk b13 is attached to the friction disk b12 to rotate synchronously, the butt joint disk b13 rotates synchronously with the third-stage driven wheel a14, and then the third-stage driven wheel a14 drives the output shaft b15 to rotate through conical tooth engagement, because the elastic coefficient of the elastic element 25 of the butt joint disk c18 is greater than that of the elastic element 25 of the butt joint disk b13, when the butt joint disk b13 is attached to rotate synchronously with the friction disk b12, the elastic force of the elastic element 25 of the butt joint disk c18 is insufficient to drive the butt joint disk c18 to move towards the friction disk c17 or to make the butt joint disk c18 contact with the friction disk c17, and only the output shaft b15 rotates; in order to prevent the gear shifting component from being damaged, a switch lock may be further provided, under the action of the switch lock, the butt-joint disk c18 does not move towards the friction disk c17, and when the thrust rod 23 further slides from the third hole site 44 into the fourth hole site 45, the working principle is as follows: the abutting plate c18 is attached to the friction plate c17 under the action of the elastic element 25 and synchronously rotates, in the process, the thrust rod 23 continues to move leftwards, the elastic force of the elastic element 25 of the abutting plate c18 is larger than that of the elastic part 8, so that the abutting plate c18 moves towards the friction plate c17 until the abutting plate c18 and the friction plate c17 are tightly attached to each other, and power output is realized; when the switch lock is arranged, in the process that the thrust rod 23 drives the abutting joint disk c18 to move towards the friction disk c17, the thrust rod 23 moves leftwards, the pull wire 38 at the right end of the thrust rod 23 is pulled leftwards, the other end of the pull wire 38 is further driven to pull the lock rod 41, the abutting joint disk c18 is unlocked, the abutting joint disk c18 is allowed to move towards the friction disk c17, the abutting joint disk c18 is attached to the friction disk c17, at the moment, the shaft sleeve c22 and the abutting joint disk c18 rotate synchronously, the output shaft a6 is further driven to rotate synchronously, and therefore the output shaft a6 and the output shaft b15 rotate synchronously.

Example two

Referring to fig. 2, the friction disk c17 is fixedly mounted on the third-stage driven wheel a14, which is different from the first embodiment: when the clutch c is applied, the rotation direction of the output shaft a6 is opposite to that of the output shaft a6 in the embodiment, and the specific principle is as follows: when the butt joint disk c18 is attached to the friction disk c17 in the present embodiment, the rotation direction of the butt joint disk c18 is consistent with the rotation direction of the friction disk c17 and the tertiary driven wheel a14, while when the butt joint disk c18 is attached to the friction disk c17 in the first embodiment, the rotation direction of the friction disk c17 is consistent with the rotation direction of the tertiary driven wheel b16, and the rotation directions of the tertiary driven wheel a14 and the tertiary driven wheel b16 are opposite through the engagement of the tapered teeth of the output shaft b 15.

EXAMPLE III

Referring to fig. 3, on the basis of the first embodiment, an output shaft c37 is further rotatably mounted on the box body, and the output shaft c37 is in meshing transmission through a bevel gear or through a cylindrical gear by the power input shaft 3. When the device works, the rotation of the output shaft a6, the rotation of the output shaft b15, the simultaneous rotation of the output shafts a6 and b15 and the rotation of the output shaft c37 can be realized, so that the output of various powers is realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A power output device with multiple clutches comprises a box body, a power input shaft (3) rotationally arranged on the wall of the box body, and at least two output shafts rotationally arranged on the wall of the box body, and is characterized by also comprising a power conversion driving mechanism arranged on the wall of the box body, wherein the power conversion driving mechanism acts on the output shafts to realize the switching between the rotation and the rest of each output shaft and the switching of the rotation direction of each output shaft, and comprises a plurality of clutches which are driven by a thrust rod (23) to realize the independent joint and separation of each clutch; the output shaft comprises an output shaft a (6) and an output shaft b (15), the number of the clutches is three, and the three clutches are a clutch a, a clutch b and a clutch c respectively, the clutch a is used for enabling the power input shaft (3) to drive the output shaft a (6) to rotate, the clutch b is used for enabling the power input shaft (3) to drive the output shaft b (15) to rotate, and the clutch b and the clutch c are simultaneously acted to enable the output shaft a (6) and the output shaft b (15) to simultaneously rotate;

the clutch a comprises a friction disc a (11), an abutting disc a (10) and a shaft sleeve a (7) fixedly mounted on an output shaft a (6), the friction disc a (11) is coaxially and rotatably mounted on the output shaft a (6), the abutting disc a (10) is axially and slidably mounted on the shaft sleeve a (7), and the abutting disc a (10) is attached to and separated from the friction disc a (11) under the action of a thrust rod (23) and a reset mechanism, so that the output shaft a (6) rotates and is static; the clutch b comprises a friction disc b (12) and an abutting disc b (13), the friction disc b (12) is coaxially and rotatably mounted on an output shaft a (6), the abutting disc b (13) is axially and slidably mounted on a three-stage driven wheel a (14), the abutting disc b (13) is attached to and separated from the friction disc b (12) under the action of a thrust rod (23) and a reset mechanism, the three-stage driven wheel a (14) and the output shaft b (15) are in meshing transmission through a bevel gear, and the rotation and the rest of the output shaft b (15) are realized; the clutch c comprises a friction disc c (17), an abutting disc c (18) and a shaft sleeve c (22) fixedly mounted on an output shaft a (6), the friction disc c (17) is driven to rotate by a three-stage driven wheel a (14), the abutting disc c (18) is axially mounted on the shaft sleeve c (22) in a sliding mode, and the abutting disc c (18) is attached to and separated from the friction disc c (17) under the action of a thrust rod (23) and a reset mechanism.

2. A power take-off with multiple clutches as claimed in claim 1, wherein: the reset mechanism comprises an elastic part (8) and a gland (9), the butt joint disk a (10), the butt joint disk b (13) and the butt joint disk c (18) are all provided with elastic part mounting grooves (36) along the axial direction, the elastic part (8) is mounted in the elastic part mounting grooves (36), the other end of the elastic part (8) is propped against the gland (9), and the three glands (9) are detachably mounted on a shaft sleeve a (7), a three-stage driven wheel a (14) and a shaft sleeve c (22); a radial sliding groove (31) is arranged on the mounting hole in sliding fit between the butt joint disk a (10) and the shaft sleeve a (7), and the sliding groove (31) is inserted into and in sliding fit with a guide block arranged on the shaft sleeve a (7) along the axial direction.

3. A power take-off with multiple clutches as claimed in claim 2, wherein: the three connecting rods (30) which are respectively acted on the butt joint disc a (10), the butt joint disc b (13) and the butt joint disc c (18) are installed on the thrust rod (23), one end of each connecting rod (30) is installed on the corresponding thrust rod (23) in a sliding mode through a sliding sleeve (24), a thrust block (32) is installed at the other end of each connecting rod (30), the thrust blocks (32) are inserted into annular grooves (35) of the butt joint disc a (10), the butt joint disc b (13) and the butt joint disc c (18), the sliding sleeves (24) at the end portions of the three connecting rods (30) are respectively connected with three fixing blocks (26) on the thrust rod (23) through elastic elements (25), and the three fixing blocks (26) are all fixedly installed on the thrust rod (23).

4. A power take-off with multiple clutches as set forth in claim 3, wherein: thrust bar (23) are through support frame and box relative sliding installation, the power end of thrust bar (23) is connected through the tip rotation of universal pivot (27) with actuating lever (28), the conversion hole on change-over board (29) is installed to the other end of actuating lever (28), still install on pivot seat (34) through the pivot that runs through it between the both ends of actuating lever (28), this pivot seat (34) fixed mounting is on the vehicle, set up slide opening (46) of four parallel hole sites of four hole sites of intercommunication on change-over board (29), the drive end of actuating lever (28) is corresponding when being in four hole sites in proper order and moves respectively and be: only clutch a is attached in the first hole position (42), all clutches are not attached in the second hole position (43), clutch b is attached in the third hole position (44), and clutch b and clutch c are both attached in the fourth hole position (45).

5. A power take-off with multiple clutches as set forth in claim 4, wherein: still including being used for carrying out the spacing switch lock of stroke to butt joint dish c (18), this switch lock includes locking lever (41) and cassette (39), vertical slidable mounting in locking lever (41) bottom is on cassette (39), the top of locking lever (41) is located inside cassette (39) and pushes up on the box inner wall through elastic component (40), the top of locking lever (41) is connected through the one end of acting as go-between (38) and thrust rod (23) keeping away from universal spindle (27), act as go-between (38) outside cover be equipped with rather than relative gliding flexible sleeve, flexible sleeve installs on the box inner wall.

6. A power take-off with multiple clutches as set forth in claim 5 wherein: fixed mounting action wheel (2) on power input shaft (3), fixed mounting and action wheel (2) meshing driven one-level follower (4) are gone up in output shaft a (6), and this one-level follower (4) rotate and install on output shaft a (6), friction disk a (11) and the coaxial fixed mounting of friction disk b (12) are in one-level follower (4) both ends, be located the left side of friction disk a (11) to disk a (10), be located one side that friction disk a (11) were kept away from to disk a (10) ring groove (35) of butt joint disk a (10), be located the right side of friction disk b (12) to disk b (13), be located one side that friction disk b (12) was kept away from to disk b (13) ring groove (35) of butt joint disk b (13), be located the right side of friction disk c (17) to disk c (18), be located one side that friction disk c (17) was kept away from to ring groove (35) of butt joint disk c (18).

7. A power take-off with multiple clutches as set forth in claim 6 wherein: the output shaft b (15) is also in meshing transmission with a three-stage driven wheel b (16) coaxially mounted on the output shaft a (6) through a bevel gear, and the friction disc c (17) is fixedly mounted on the three-stage driven wheel b (16).

8. A power take-off with multiple clutches as claimed in claim 6, wherein: and the friction disc c (17) is fixedly arranged on the three-stage driven wheel a (14).

9. A power take-off with multiple clutches as claimed in claim 8, wherein: the opposite sides of the three-stage driven wheel a (14) and the three-stage driven wheel b (16) are coaxially provided with inner bevel gears, the two inner bevel gears are in meshing transmission with the bevel teeth of the supporting driven wheel (19), and the supporting driven wheel (19) is rotatably arranged on the box body; an output shaft c (37) is further rotatably mounted on the box body, and the output shaft c (37) is in meshing transmission through a bevel gear or a cylindrical gear by the power input shaft (3).