WO2017147990A1 - 离合-刹车装置 - Google Patents

离合-刹车装置 Download PDF

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Publication number
WO2017147990A1
WO2017147990A1 PCT/CN2016/079948 CN2016079948W WO2017147990A1 WO 2017147990 A1 WO2017147990 A1 WO 2017147990A1 CN 2016079948 W CN2016079948 W CN 2016079948W WO 2017147990 A1 WO2017147990 A1 WO 2017147990A1
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WO
WIPO (PCT)
Prior art keywords
disc
end surface
disk
main joint
brake
Prior art date
Application number
PCT/CN2016/079948
Other languages
English (en)
French (fr)
Inventor
谢春干
Original Assignee
扬州维邦园林机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 扬州维邦园林机械有限公司 filed Critical 扬州维邦园林机械有限公司
Priority to EP16892179.9A priority Critical patent/EP3425233B1/en
Priority to US15/742,182 priority patent/US10443669B2/en
Publication of WO2017147990A1 publication Critical patent/WO2017147990A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
    • F16D67/02—Clutch-brake combinations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/24—Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches
    • F16D13/26—Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches in which the or each axially-movable member is pressed exclusively against an axially-located member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
    • F16D13/54—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
    • F16D13/56—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member in which the clutching pressure is produced by springs only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/66—Clutch-plates; Clutch-lamellae of conical shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/36—Brakes with a plurality of rotating discs all lying side by side
    • F16D55/38—Brakes with a plurality of rotating discs all lying side by side mechanically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
    • F16D2023/123—Clutch actuation by cams, ramps or ball-screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0075—Constructional features of axially engaged brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/002—Combination of different friction materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical

Definitions

  • the present invention relates to a mechanical coupling device, and more particularly to a clutch-brake device.
  • CN1452454A discloses a friction connector including a friction member including a braking surface and a clutch surface on a plane different from the braking surface; a spring against which the spring abuts; a brake member that is adjacent to the brake surface; a brake member that is mounted relative to the friction member and that is rotatable relative to each other; and a brake actuator that is coupled to the brake member.
  • Cida Patent Application Publication No. CN1490536A discloses a clutch/brake assembly including a first housing having a braking surface; an input shaft coupled to the first housing for rotation relative to the first housing; at least two An input piece coupled to the input shaft for rotation with the shaft, the input piece being movable along the axis; a brake pad having a first frictional surface and a second frictional surface, the brake pad being movable along the axis; a biasing member biasing the brake pad against the braking surface of the first casing to prevent rotation of the brake pad relative to the first casing; one coupled to the input shaft and rotatable relative to the input shaft and the first casing a second casing having a third friction surface; and a brake assembly operatively disengaging the brake pad from engagement with the braking surface and operatively engaging the first, second and third The friction surface is drivingly engaged with the input piece.
  • the present invention provides a clutch-brake device which can realize braking and re-engaging work of the device by simply operating the handle of the actuating disc, with reliable performance and strong load capacity.
  • the work is stable and durable.
  • a clutch-brake device in the present invention includes:
  • a bushing including a bushing flange and a recess extending inwardly from a lower end of the bushing flange, the recess having a first main engaging surface, the bushing being coupled at its upper end to the drive shaft to a sleeve rotatable together with the drive shaft, the sleeve being fixedly coupled to the drive shaft at a lower end thereof;
  • a holder disk mounted to a lower end of the sleeve by a first bearing and a first limit retaining ring, the holder disk having an upper end surface and a lower end surface for tool mounting, the holder
  • the disc is provided with a plurality of grooves on the outer peripheral surface, and one end of the holder disc is provided with external teeth;
  • the actuating disc is mounted on the sleeve by a second bearing and a second retaining ring, the lower end surface of the actuating disc is provided with a plurality of end surface chutes in the circumferential direction;
  • the upper end surface of the brake disc is circumferentially disposed with the same number of end face chutes matched with a plurality of end surface chutes on the lower end surface of the actuating disc;
  • the plurality of first steel balls being rotatable along an end surface chute of the lower end surface of the actuating disc and an end surface chute of the brake disc, thereby enabling the brake disc to Axial movement
  • a friction disc disposed under the brake disc and the sleeve flange, and an upper surface of the friction disc is fixed with a friction material to form a friction upper surface extending downward from a lower surface of the friction disc a cylindrical wall with a plurality of notches in the circumferential direction of the cylindrical wall;
  • An intermediate disk including an upper end surface and a lower end surface, wherein the upper end surface is provided with a plurality of intermediate disk upper end surface chutes in a circumferential direction, and the intermediate disk further includes a plurality of radially extending convex portions on an outer peripheral surface thereof a block, the bump includes a biasing spring seat hole, the plurality of protrusions are fitted into the plurality of notches of the friction disc and are movable, and a cylindrical wall of the friction disc is also placed In a plurality of grooves of the knife seat disk;
  • a main joint body having an inner recessed portion, an inner tooth, a second main joint surface and a lower end surface that cooperate with the outer teeth of the seat pan, the second main joint surface being adapted to be a first main joint surface of the sleeve flange is engaged, and a lower end surface of the main joint body is circumferentially disposed with a plurality of lower end surface chutes that cooperate with the plurality of upper end surface grooves of the intermediate disc;
  • the second biasing spring is seated between a bottom surface of the inner recess of the main joint body and a third limit ring disposed on the seat disk;
  • the plurality of second steel balls being rotatable along a lower end chute of the main joint body and an upper end chute of the intermediate disc, thereby enabling the main joint body to move axially; as well as
  • At least a portion of the primary engagement body is a truncated cone
  • the second primary engagement surface is at least a portion of an outer surface of the truncated cone
  • the first primary engagement surface being At least a portion of the inner tapered surface of the recess.
  • the main joint body is a cylinder
  • the second main joint surface is at least a portion of an upper end surface of the cylinder
  • the first main joint surface is a top end of the recess portion At least part of the face.
  • At least one of the first main joint surface and the second main joint surface is provided with a friction material.
  • Another clutch-brake device of the present invention includes:
  • a bushing including a bushing flange and a recess extending inwardly from a lower end of the bushing flange, the recess having a first main engaging surface, the bushing being coupled at its upper end to the drive shaft to a sleeve rotatable together with the drive shaft, the sleeve being fixedly coupled to the drive shaft at a lower end thereof;
  • the holder disk has an upper end surface and a lower end surface for tool mounting, the upper end surface is provided with a plurality of upper end surface chutes in a circumferential direction, and the holder disk is provided with a plurality of grooves on the outer circumferential surface, and One end of the knife holder disk is provided with external teeth;
  • the actuating disc is mounted on the sleeve through the second bearing and the second limiting retaining ring; the lower end surface of the actuating disc is uniformly disposed with a plurality of end surface chutes in the circumferential direction;
  • the upper surface of the brake disc is uniformly disposed in the circumferential direction with the same number of end face chutes matched with the plurality of end surface chutes on the lower end surface of the actuating disc;
  • the plurality of first steel balls being rotatable along an end surface chute of the lower end surface of the actuating disc and an end surface chute of the brake disc, thereby enabling the brake disc to Axial movement
  • a friction disc disposed under the brake disc and the sleeve flange, and an upper surface of the friction disc is fixed with a friction material to form a friction upper surface extending downward from a lower surface of the friction disc a cylindrical wall with a plurality of notches in the circumferential direction of the cylindrical wall;
  • the intermediate disk includes an upper end surface and a lower end surface, wherein the upper end surface is provided with a plurality of intermediate disk upper end surface chutes in the circumferential direction, and the lower end surface is provided with a plurality of intermediate disk lower end surface chutes in the circumferential direction,
  • the intermediate disk further includes a plurality of radially extending protrusions on an outer peripheral surface thereof, the protrusions including a biasing spring seat hole, and the plurality of protrusions are fitted to the plurality of circles of the friction disk a cylindrical wall in the gap and movable, the cylindrical wall of the friction disc is also placed in a plurality of grooves of the holder disk;
  • a main joint body having an inner recessed portion, an inner tooth, a second main joint surface and a lower end surface that cooperate with the outer teeth of the seat pan, the second main joint surface being adapted to be Cooperating with a first main joint surface of the sleeve flange, the lower end surface of the main joint body is provided with a plurality of plurality of intermediate discs in the circumferential direction a lower end chute with an upper end chute fit;
  • the second biasing spring is seated between a bottom surface of the inner recess of the main joint body and a second limit ring disposed on the seat disk;
  • the plurality of second steel balls being rotatable along a lower end chute of the main joint body and an upper end chute of the intermediate disc, thereby enabling the main joint body to move axially;
  • the plurality of third steel balls being rotatable along a lower end chute of the intermediate disk and an upper end chute of the holder disk, thereby enabling the intermediate disk to move axially; as well as
  • At least a portion of the primary engagement body is a truncated cone
  • the second primary engagement surface is at least a portion of an outer surface of the truncated cone
  • the first primary engagement surface being At least a portion of the inner tapered surface of the recess.
  • the main joint body is a cylinder
  • the second main joint surface is at least a portion of an upper end surface of the cylinder
  • the first main joint surface is a top end of the recess portion At least part of the face.
  • At least one of the first main joint surface and the second main joint surface is provided with a friction material.
  • the clutch-brake device of the present invention can be applied to a lawn mower, but can be used for other similar purposes.
  • Figure 1 is a top plan view of a clutch-brake device of the present invention
  • Figure 2 is a cross-sectional view of the clutch-brake device of Figure 1, wherein the clutch-brake device is in a braking state;
  • Figure 3 is a cross-sectional view of the clutch-brake device of Figure 1, wherein the clutch-brake device is at the junction Combined with the first state;
  • Figure 4 is a cross-sectional view of the clutch-brake device of Figure 1, wherein the clutch-brake device is in a second state;
  • FIG. 5 is an exploded view of the clutch-brake device of the present invention.
  • Figure 6 is a cross-sectional view showing another clutch-brake device of the present invention, wherein the clutch-brake device is in a braking state;
  • Figure 7 is a cross-sectional view of the clutch-brake device of Figure 6, wherein the clutch-brake device is in a first state of engagement;
  • Figure 8 is a cross-sectional view of the clutch-brake device of Figure 6 with the clutch-brake device in a second state of engagement.
  • a clutch-brake device 100 of the present invention includes an actuating disc 10, a brake disc 30, a bushing 41, a friction disc 50, a cone 60, an intermediate disc 70, Knife holder disk 80.
  • the sleeve 41 is coupled at one end thereof to a drive shaft (not shown) inserted into its shaft bore 18 by means of a keyway fit (not shown) for rotation therewith.
  • the other end of the sleeve 41 is fixedly coupled to the drive shaft by screws 90.
  • the sleeve 41 is integral with the drive shaft and can be rotated synchronously.
  • the drive shaft can be a specific power input shaft or an output shaft that is directly a power source.
  • the power source may be an internal combustion engine provided on the lawn mower, but is not limited thereto.
  • the holder disk 80 is mounted to the lower end of the sleeve 41 by a first bearing 95 and a first limit collar 98.
  • the holder disk 80 has an upper end surface and a lower end surface 210 for tool mounting, and a plurality of grooves 803 are provided on the outer peripheral surface, and the holder disk is provided with external teeth 804.
  • the actuating disc 10 is mounted on the sleeve 41 by the second bearing 15 and the second limit retaining ring 13, but does not rotate with the sleeve 41.
  • the lower end surface of the actuating disc 10 is provided with a plurality of end surface chutes 120 in the circumferential direction, and three end surface chutes 120 are preferably provided uniformly or equidistantly in the circumferential direction. Accordingly, a plurality of end face chutes 320 are also provided on the upper end surface of the brake disc 30, and three end face chutes 320 are preferably provided uniformly or equidistantly in the circumferential direction. Further, between the lower end surface of the actuating disc 10 and the upper end surface of the brake disc 30, a plurality of steel balls, such as corresponding three steel balls 20, are provided through the retaining holes 251 of the steel ball cage 25. The steel ball 20 can be rolled along the end surface chute 120 of the lower end surface of the actuating disc 10 and the end surface chute 320 on the upper end surface of the mating brake disc 30, thereby achieving axial movement of the brake disc 30.
  • the plurality of first biasing springs 40 pass through the biasing spring holes 130 in the actuating disc 10, the biasing spring holes 330 in the brake disc 30, and the biasing spring end fixing holes provided in the actuating disc 10, respectively. 140, the actuation disk 10 and the brake disk 30 are connected. Due to the biasing action of the spring, the biasing spring 40 biases the brake disc 30 upward when the braking operation is not performed, preventing the brake disc 30 from coming into contact with the friction disc 50.
  • the plurality of biasing springs 40 are uniformly disposed in the circumferential direction. More preferably, three biasing springs 40 are along The circumferential direction is evenly set.
  • the friction disc 50 is disposed below the brake disc 30 and the boss flange 45, and the upper end surface of the friction disc 50 is fixed with a friction material to form a friction surface 510.
  • the fixing of the friction material on the friction disc 50 and its form may be fixed in a manner and form known in the art, such as by riveting, and the friction material may be arranged in a trough type or an Archimedes spiral type. This will not be described in detail.
  • a cylindrical wall 520 extends downward from the lower surface of the friction disk 50, and has a plurality of notches in the circumferential direction of the cylindrical wall 520, such as three notches 503 for accommodating the outer circumference from the intermediate disk 70.
  • a plurality of radially extending, such as three circumferential projections (also referred to as bias spring seats) 703, and a third biasing spring 78 is seated in the biasing spring seat bore of the biasing spring seat 703.
  • the bottom surface of the biasing spring seat hole is biased, and the biasing spring seat 703 abuts against the lower surface of the friction disk 50. In this manner, the friction disk 50 is interlocked with the intermediate disk 70, and the biasing spring seat 703 biases the friction disk 50.
  • the main engaging body that is, the upper truncated cone 60 (the lower portion is a cylindrical body) is disposed below the axial direction of the friction disc 50 through the third limit retaining ring 61 and the second biasing spring 62 on the seat disk 80, and is located
  • the intermediate disk 70 is axially upward.
  • the end chute 601, the second steel ball 65 is disposed in the upper end chute 701 and the upper truncated cone 60 lower end chute 601, and can be along the upper end chute 701 and the upper truncated cone 60 lower end chute The 601 rolls to achieve axial movement of the upper truncated cone 60.
  • a plurality of, for example, three upper end groove grooves 802 are provided in the upper end surface of the holder disk 80 corresponding to the lower end surface groove 702 of the intermediate disk 70.
  • the third steel ball 75 is disposed in the lower end surface groove 702 of the intermediate disk 70 and the upper end surface groove 802 of the blade holder disk 80, and can be rolled along the lower end surface groove 702 and the upper end surface groove 802, thereby realizing the intermediate disk 70. Axial movement.
  • the upper end plate 70 has an upper end groove 701, a lower end groove 702, and an upper truncated cone 60 lower end surface.
  • the chute 601 and the upper end chute 802 of the holder disk 80 are designed such that the axial movement caused by the rolling of the second steel ball 65 and the third steel ball 75 coincides with each other, or at least does not cancel each other.
  • the end surface chute 702 on the lower end surface of the intermediate disk 70 and the upper end surface inclined groove 802 and the third steel ball 75 of the holder disk 80 may not be used.
  • the axial movement of the cone 60 is achieved only by the upper end face chute 701 of the intermediate disk 70 and the lower truncated groove 601 of the upper truncated cone 60 and the second steel ball 65.
  • the design of the size and/or shape of the chutes and the steel balls should satisfy the purpose of the movement of the corresponding components of the present invention, and such a design is easily realized by those skilled in the art, and will not be described in detail herein. .
  • a preferred embodiment is the upper end chute 701 of the intermediate disk 70, the lower end chute 702, the lower end chute 601 of the upper truncated cone 60, the upper end chute 802 of the seat disk 80, and the second steel ball.
  • Both the 65 and the third steel ball 75 are employed because this arrangement ensures that the upper truncated cone 60 can achieve more axial displacement when the intermediate disk 70 is rotated at the same angle.
  • the internal teeth 604 of the upper truncated cone 60 should be designed to cooperate with the external teeth 804 of the seat disk 80.
  • the biasing spring seat 703 of the intermediate disk 70 can be moved in the groove 803 provided on the outer circumferential surface of the blade holder disk 80 to realize the third steel ball 75 along the lower end surface chute 702 and the upper end surface of the holder disk 80. 802 scrolling.
  • the holder disk 80 is mounted on the sleeve 41 by the first limit retaining ring 98 and the first bearing 95, but cannot be rotated directly with the sleeve 41.
  • the first steel ball 20 is located at the deep end of the end face chute 120 uniformly disposed in the circumferential direction on the lower end surface of the actuating disc 10, and also The depth of the end face chute 320 on the upper end surface of the mating brake disc 30 is held in this position by the biasing spring 40.
  • the second steel ball 65 is located at a shallow portion of the upper end surface chute 701 of the intermediate disk 70 and a shallow portion of the lower end surface chute 601 of the upper truncated cone 60
  • the third steel ball 75 is located at the lower end surface of the intermediate disk 70.
  • the brake disc 30 and the friction disc 50 are in a disengaged state, and the lower surface 451 of the sleeve flange 45 is engaged with the upper surface 510 of the friction material of the friction disc 50, and the inner tapered surface of the sleeve flange 45 452 cooperates with the outer surface 602 of the upper truncated cone 60 to drive the upper truncated cone 60 to rotate, thereby driving the holder disk 80 to rotate.
  • the handle 110 of the actuating disc 10 can be pulled or pushed based on the design to rotate the actuating disc 10, thereby forcing the first steel ball 20 to follow the lower end surface of the actuating disc 10.
  • the depth of the end face chute 120 uniformly disposed in the circumferential direction and the depth of the end surface chute 320 on the upper end surface of the brake disc 30 are moved to a shallow position along the end surface chute 120 and the end surface chute 320, thereby causing the brake disc 30 to be downward.
  • the shallow portion of the lower end face chute 601 of the truncated cone 60 moves deeper while driving the third steel ball 75 from the shallow portion of the lower end surface of the intermediate plate 70 to the inclined groove 702 and the upper end groove 802 of the seat disk 80.
  • the shallow portion moves deeper, at which time the axial pressure received by the upper truncated cone 60 is removed, the non-self-locking cone friction disappears, and the gravity of the upper truncated cone 60 itself and the third biasing spring 62
  • the outer surface of the upper truncated cone 60 is disengaged from the inner tapered surface 452 of the sleeve flange 45 to disengage.
  • the upper truncated cone 60 and the seat pan 80 will also stop rotating, so that the entire system stops operating except that the bushing is idling with the drive shaft.
  • the handle 110 of the actuating disc 10 If the device is required to start working again, it is necessary to operate the handle 110 of the actuating disc 10 in the opposite direction to the brake to rotate the actuating disc 10, thereby forcing the first steel ball 20 to be circumferentially from the lower end surface of the actuating disc 10.
  • the shallow portion of the evenly disposed end face chute 120 and the shallow portion of the end face chute 320 on the upper end surface of the brake disc 30 move deeper along the end face chute 120 and the end face chute 320, and are at the first biasing spring 40 Upward bias
  • the brake disc 30 is moved axially upward until the lower surface 310 of the brake disc 30 is disengaged from the upper surface 510 of the friction material of the friction disc 50.
  • the upper surface 510 of the friction material of the friction disc 50 is in contact with the lower surface 451 of the sleeve flange 45, thereby being rotated by the sleeve flange 45, and the friction disc is further rotated.
  • the outer ring friction disk 50 is applied with a relatively small spring pressure, and the inner ring upper truncated cone 60 or the cylinder 60' can be subjected to greater pressure by the two-layer end face chute boosting mechanism. Since the spring pressure of the outer ring friction disc 50 is small, the spring driving force of the actuating disc 10 that pushes the brake disc 30 can be small, and the operation force of manually actuating the actuating disc 10 to disengage the brake disc 30 from the friction disc 50 can be compared. Small, so that the operation is comfortable and not fatigued.
  • Figures 6, 7, and 8 show a variation of the brake-clutch apparatus of the present invention described above.
  • the main joint body in the brake-clutch device 100' shown in FIGS. 6, 7, and 8 employs a cylinder 60'.
  • the cylinder 60' has an inner recess at the upper end, inner teeth that cooperate with the outer teeth of the seat disk 80, a second main joint surface 602', and a lower end surface.
  • the second primary engagement surface 602' is at least a portion of the upper end surface of the cylindrical body 60' for mating with the first primary engagement surface 452' of the sleeve flange 45'.
  • the second primary engagement surface 602' and the first primary engagement surface 452' are substantially planar, and the first primary engagement surface 452' and the second primary engagement surface 602' are preferably provided with a friction material.
  • the lower end surface of the cylindrical body 60' is provided with a plurality of lower end surface chutes that cooperate with the plurality of upper end surface grooves of the intermediate disk 70 in the circumferential direction.
  • the brake-clutch device 100' operates in the same manner as the brake-clutch device 100 except that the second primary engagement surface 602' mates with the first primary engagement surface 452' in place of the second primary engagement surface 602 in the brake-clutch device 100.
  • the lower end surface 451' of the sleeve flange 45' mates with the upper surface 510 of the friction material of the friction disc 50 instead of the lower surface of the sleeve flange 45 in the brake-clutch device 100.
  • 451 mates with the upper surface 510 of the friction material of the friction disc 50.
  • the sleeve flange 45' is simultaneously designed to cooperate with the structure of the cylinder 60'. Such a design is easily realized by those skilled in the art and will not be described herein.
  • the other components and mating relationships of the brake-clutch device 100' are the same as those of the brake-clutch device 100 and will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

一种机械连接装置，特别是离合-刹车装置，其包括致动盘（10）、刹车盘（30）、轴套（41）、摩擦盘（50）、主接合体（60）、中间盘（70）、刀座盘（80），通过中间盘（70）与相邻的主接合体（60）和刀座盘（80）的运动配合实现主接合体（60）与轴套法兰（45）的连接和分离。该离合-刹车装置适用于割草机发动机和割草刀片的连接或其他应用，其性能可靠，负载能力强，工作稳定耐久。

Description

离合-刹车装置 技术领域
本发明涉及一种机械连接装置，尤其涉及一种离合-刹车装置。
背景技术
中国专利申请公开号CN1452454A公开了一种摩擦连接器，包括摩擦部件，该摩擦部件包括制动表面和在与制动表面不同的平面上的离合器表面；弹簧，该弹簧抵靠该摩擦部件；制动部件，该制动部件靠近制动表面；制动部件相对于摩擦部件安装并能够相对旋转；以及制动促动器，该制动促动器与制动部件相连。
中国专利申请公开号CN1490536A公开了一种离合器/制动器组件，它包括一个具有制动面的第一罩壳；一个连接于第一罩壳用于相对于第一罩壳旋转的输入轴；至少两个连接于输入轴用于和该轴一起旋转的输入片，该输入片可以沿轴移动；一个具有第一摩擦面和第二摩擦面的制动片，该制动片可以沿轴移动；一个偏压元件，它将制动片偏压于第一罩壳的制动面以阻止制动片相对于第一罩壳的旋转；一个连接于输入轴并相对于输入轴和第一罩壳旋转的第二罩壳，该第二罩壳具有第三摩擦面；以及一个制动器组件，操作上可将制动片断开其和制动面的啮合并且操作上可将第一、第二和第三摩擦面传动地啮合于输入片。
本领域仍需要操作方便、负载能力强、工作稳定耐久、性能可靠的离合-刹车装置。
发明内容
为实现上述发明目的，本发明提供了一种离合-刹车装置，这种离合-刹车装置可通过简单地操作致动盘的手柄，实现该装置的刹车和重新接合工作，性能可靠，负载能力强，工作稳定耐久。
本发明中的一种离合-制动装置包括：
轴套，包括轴套法兰和从所述轴套法兰的下端面向内延伸的凹陷部，所述凹陷部具有第一主接合面，所述轴套在其上端连接至驱动轴使所述轴套可与所述驱动轴一起旋转，所述轴套在其下端与所述驱动轴固定连接；
刀座盘，所述刀座盘通过第一轴承和第一限位挡圈安装在所述轴套的下端，所述刀座盘具有上端面和用于刀具安装的下端面，所述刀座盘在外周面上设有多个凹槽，且所述刀座盘一端设置有外齿；
致动盘，所述致动盘通过第二轴承和第二限位挡圈安装在所述轴套上，所述致动盘的下端面沿周向设置有多个端面斜槽；
刹车盘，所述刹车盘的上端面沿周向设置有与所述致动盘的下端面上的多个端面斜槽配合的相同数目的多个端面斜槽；
多个第一钢球，所述多个第一钢球可沿所述致动盘的下端面的端面斜槽以及所述刹车盘的上端面的端面斜槽滚动，从而使所述刹车盘能轴向移动；
多个第一偏压弹簧，所述多个第一偏压弹簧分别通过位于致动盘中的偏压弹簧孔和位于刹车盘中的偏压弹簧孔以及设置于致动盘中的偏压弹簧端部固定孔将所述致动盘和所述刹车盘连接起来；
摩擦盘，所述摩擦盘设置在所述刹车盘和所述轴套法兰下方，且所述摩擦盘的上表面固定有摩擦材料以形成摩擦上表面，从摩擦盘的下表面向下延伸有圆筒形壁，且在所述圆筒形壁的周向带有多个缺口；
中间盘，所述中间盘包括上端面和下端面，所述上端面在周向上设置有多个中间盘上端面斜槽，所述中间盘在其外周面上还包括径向延伸的多个凸块，所述凸块内包括偏压弹簧座孔，所述多个凸块配合于所述摩擦盘的所述多个缺口中且可移动，所述摩擦盘的圆筒形壁亦置于所述刀座盘的多个凹槽中；
主接合体，所述主接合体上端具有内凹陷部、与所述刀座盘的外齿配合的内齿、第二主接合面和下端面，所述第二主接合面适于与所述轴套法兰的第一主接合面配合，所述主接合体的下端面在周向上设置有多个与所述中间盘的多个上端面斜槽配合的下端面斜槽；
第二偏压弹簧，所述第二偏压弹簧坐置于所述主接合体的内凹陷部底面与设置在所述刀座盘上的第三限位挡圈之间；
多个第二钢球，所述多个第二钢球可沿所述主接合体的下端面斜槽以及所述中间盘的上端面斜槽滚动，从而使所述主接合体能轴向移动；以及
多个第三偏压弹簧，所述第三偏压弹簧坐置于所述中间盘的多个偏压弹簧座孔底面和所述摩擦盘的下端面之间。
在一个实施例中，所述主接合体的至少一部分为截顶锥体，且所述第二主接合面为所述截顶锥体的外表面的至少一部分，所述第一主接合面为所述凹陷部的内锥面的至少一部分。
在另一个实施例中，所述主接合体为圆柱体，且所述第二主接合面为所述圆柱体的上端面的至少一部分，所述第一主接合面为所述凹陷部的顶端面的至少一部分。
在一个优选的实施例中，所述第一主接合面和所述第二主接合面的至少一个上设有摩擦材料。
本发明中的另一种离合-制动装置包括：
轴套，包括轴套法兰和从所述轴套法兰的下端面向内延伸的凹陷部，所述凹陷部具有第一主接合面，所述轴套在其上端连接至驱动轴使所述轴套可与所述驱动轴一起旋转，所述轴套在其下端与所述驱动轴固定连接；
刀座盘，所述刀座盘通过第一轴承和第一限位挡圈安装在所述轴套的下端， 所述刀座盘具有上端面和用于刀具安装的下端面，所述上端面在周向上设置有多个上端面斜槽，所述刀座盘在外周面上设置有多个凹槽，且所述刀座盘一端设置有外齿；
致动盘，所述致动盘通过第二轴承和第二限位挡圈安装在所述轴套上；所述致动盘的下端面沿周向均匀设置有多个端面斜槽；
刹车盘，所述刹车盘的上表面沿周向均匀设置有与所述致动盘的下端面上的多个端面斜槽配合的相同数目的多个端面斜槽；
多个第一钢球，所述多个第一钢球可沿所述致动盘的下端面的端面斜槽以及所述刹车盘的上端面的端面斜槽滚动，从而使所述刹车盘能轴向移动；
多个第一偏压弹簧，所述多个第一偏压弹簧分别通过位于致动盘中的偏压弹簧孔和位于刹车盘中的偏压弹簧孔以及设置于致动盘中的偏压弹簧端部固定孔将所述致动盘和所述刹车盘连接起来；
摩擦盘，所述摩擦盘设置在所述刹车盘和所述轴套法兰下方，且所述摩擦盘的上表面固定有摩擦材料以形成摩擦上表面，从摩擦盘的下表面向下延伸有圆筒形壁，且在所述圆筒形壁的周向上带有多个缺口；
中间盘，所述中间盘包括上端面和下端面，所述上端面在周向上设置有多个中间盘上端面斜槽，所述下端面在周向上设置有多个中间盘下端面斜槽，所述中间盘在其外周面上还包括径向延伸的多个凸块，所述凸块内包括偏压弹簧座孔，所述多个凸块配合于所述摩擦盘的所述多个圆筒形壁缺口中且可移动，所述摩擦盘的圆筒形壁亦置于所述刀座盘的多个凹槽中；
主接合体，所述主接合体上端具有内凹陷部、与所述刀座盘的外齿配合的内齿、第二主接合面和下端面，所述第二主接合面适于与所述轴套法兰的第一主接合面配合，所述主接合体的下端面在周向上设置有多个与所述中间盘的多 个上端面斜槽配合的下端面斜槽；
第二偏压弹簧，所述第二偏压弹簧坐置于所述主接合体的内凹陷部底面与设置在所述刀座盘上的第二限位挡圈之间；
多个第二钢球，所述多个第二钢球可沿所述主接合体的下端面斜槽以及所述中间盘的上端面斜槽滚动，从而使所述主接合体能轴向移动；
多个第三钢球，所述多个第三钢球可沿所述中间盘的下端面斜槽以及所述刀座盘的上端面斜槽滚动，从而使所述中间盘能轴向移动；以及
多个第三偏压弹簧，所述第三偏压弹簧坐置于所述中间盘的多个凸块内的偏压弹簧座孔底面和所述摩擦盘的下端面之间。
在一个实施例中，所述主接合体的至少一部分为截顶锥体，且所述第二主接合面为所述截顶锥体的外表面的至少一部分，所述第一主接合面为所述凹陷部的内锥面的至少一部分。
在另一个实施例中，所述主接合体为圆柱体，且所述第二主接合面为所述圆柱体的上端面的至少一部分，所述第一主接合面为所述凹陷部的顶端面的至少一部分。
在一个优选的实施例中，所述第一主接合面和所述第二主接合面的至少一个上设有摩擦材料。
本发明中的离合-刹车装置可应用于割草机中，但也可用于其它相似用途。
附图说明
图1为本发明的一种离合-刹车装置的俯视示意图；
图2为图1中的离合-刹车装置的剖视示意图，其中该离合-刹车装置处于刹车状态；
图3为图1中的离合-刹车装置的剖视示意图，其中该离合-刹车装置处于结 合第一状态；
图4为图1中的离合-刹车装置的剖视示意图，其中该离合-刹车装置处于结合第二状态；
图5为本发明的一种离合-刹车装置的零部件分解图；
图6为本发明的另一种离合-刹车装置的剖视示意图，其中该离合-刹车装置处于刹车状态；
图7为图6中的离合-刹车装置的剖视示意图，其中该离合-刹车装置处于结合第一状态；
图8为图6中的离合-刹车装置的剖视示意图，其中该离合-刹车装置处于结合第二状态。
具体实施方式
下面结合附图对本发明做进一步说明。应该清楚，附图中所描述的本发明的具体实施例仅为说明本发明用，其并非按实际尺寸和比例严格绘制。因此，本发明中的附图不应解释为对本发明的任何限制。本发明的保护范围由权利要求书进行限定。
应当理解，本发明中的方向性术语“上”、“下”、“内”、“外”、“顶”、“底”及其它可能出现的方向性术语仅为相对概念，不应被解释为对本发明范围的限制。
应当理解，附图中相同或相似的附图标记表示相同或相似的零部件，且为简明起见，省略了一些附图中的某些附图标记，在参照附图时，应与说明书和其它附图相互参照。
现参见图1、2、3、4、5，本发明中的一种离合-刹车装置100包括致动盘10、刹车盘30、轴套41、摩擦盘50、锥体60、中间盘70、刀座盘80。
轴套41在其一端通过本领域已知的方式，如键槽配合(未示出)连接至插入其轴孔18的驱动轴(未示出)上，使其与驱动轴一起转动。轴套41的另一端则通过螺钉90固定连接至驱动轴上。这样，轴套41与驱动轴结为一体，可同步旋转。
驱动轴可为特定的动力输入轴或直接为动力源的输出轴。动力源可为设置在割草机上的内燃机，但并不局限于此。
刀座盘80通过第一轴承95和第一限位挡圈98安装在所述轴套41的下端。刀座盘80具有上端面和用于刀具安装的下端面210，在外周面上设有多个凹槽803，且所述刀座盘设置有外齿804。
致动盘10通过第二轴承15和第二限位挡圈13安装在轴套41上，但不随轴套41一起旋转。
致动盘10的下端面沿周向设置有多个端面斜槽120，优选沿周向均匀或等距设置有3个端面斜槽120。相应地，在刹车盘30的上端面上也设置有多个端面斜槽320，优选沿周向均匀或等距设置有3个端面斜槽320。此外，在致动盘10的下端面和刹车盘30的上端面之间还通过钢球保持架25的保持孔251设置有多个钢球，如对应的3个钢球20。钢球20可沿致动盘10的下端面的端面斜槽120以及相配合的刹车盘30的上端面上的端面斜槽320滚动，从而实现刹车盘30的轴向移动。
多个第一偏压弹簧40分别通过位于致动盘10中的偏压弹簧孔130和位于刹车盘30中的偏压弹簧孔330以及设置于致动盘10中的偏压弹簧端部固定孔140，将致动盘10和刹车盘30连接起来。由于弹簧的偏压作用，在未执行制动操作时，偏压弹簧40将刹车盘30向上偏压，防止刹车盘30与摩擦盘50接触。
优选地，多个偏压弹簧40沿周向均匀设置。更优选地，3个偏压弹簧40沿 周向均匀设置。
摩擦盘50设置在刹车盘30和轴套法兰45下方，且摩擦盘50的上端面固定有摩擦材料以形成摩擦面510。摩擦盘50上摩擦材料的固定及其形式可采用本领域已知的固定方式和形式，如采用铆接方式进行固定，而摩擦材料可按槽形辐射型或阿基米德螺线型布置，在此不再详细描述。
从摩擦盘50下表面向下延伸有圆筒形壁520，且在圆筒形壁520的周向带有多个缺口，如3个缺口503，该缺口用来容纳从中间盘70的外圆周上径向延伸的多个，如3个圆周凸块(也可称为偏压弹簧座)703，而第三偏压弹簧78坐置于偏压弹簧座703的偏压弹簧座孔中，抵靠该偏压弹簧座孔的底面，且偏压弹簧座703抵靠摩擦盘50的下表面。通过这种方式，摩擦盘50与中间盘70实现联动，且偏压弹簧座703对摩擦盘50形成偏压。
主接合体，即上部截顶锥体60(下部为圆柱体)通过刀座盘80上的第三限位挡圈61和第二偏压弹簧62设置在摩擦盘50的轴向下方，且位于中间盘70的轴向上方。在中间盘70的上下端面上分别沿周向均匀设置有多个，如3个上端面斜槽701和3个下端面斜槽702，其中上端面斜槽701对应于上部截顶锥体60下端面斜槽601，第二钢球65设置在上端面斜槽701和上部截顶锥体60下端面斜槽601中，并可沿上端面斜槽701和上部截顶锥体60下端面斜槽601滚动，从而实现上部截顶锥体60的轴向移动。
在刀座盘80的上端面周向对应于中间盘70的下端面斜槽702设置有多个，如3个刀座盘80上端面斜槽802。第三钢球75设置在中间盘70的下端面斜槽702和刀座盘80的上端面斜槽802中，并可沿下端面斜槽702和上端面斜槽802滚动，从而实现中间盘70的轴向移动。
上述中间盘70上端面斜槽701、下端面斜槽702、上部截顶锥体60下端面 斜槽601、刀座盘80上端面斜槽802的设计应使得第二钢球65和第三钢球75的滚动所引起的轴向移动相一致，或者至少不相互抵消。
另外，中间盘70下端面上的端面斜槽702和刀座盘80上端面上端面斜槽802以及第三钢球75也可以不采用。在这种情况下，只通过中间盘70的上端面斜槽701和上部截顶锥体60下端面斜槽601以及第二钢球65来实现锥体60的轴向移动。此时，这些斜槽和钢球的尺寸和/或形状的设计应满足本发明的相应部件移动的目的，而这种设计对本领域的技术人员而言是容易实现的，在此不再详述。
但是，优选的方案是中间盘70的上端面斜槽701、下端面斜槽702、上部截顶锥体60的下端面斜槽601、刀座盘80的上端面斜槽802以及第二钢球65和第三钢球75都采用，因为这种方案确保中间盘70转动角度相同时，上部截顶锥体60能获得更多的轴向位移量。
为实现上部截顶锥体60和刀座盘80的联动，上部截顶锥体60的内齿604应设计成与刀座盘80的外齿804相配合的结构。另外，中间盘70的偏压弹簧座703可在设置于刀座盘80外周面上的凹槽803中移动，以实现第三钢球75沿下端面斜槽702和刀座盘80上端面斜槽802的滚动。
刀座盘80采用第一限位挡圈98和第一轴承95安装在轴套41上，但不能直接随轴套41一起旋转。
在割草机使用中，即刀座盘正常旋转带动刀具正常工作时，第一钢球20都位于致动盘10的下端面沿周向均匀设置的端面斜槽120的深处，同时也都位于相配合的刹车盘30的上端面上的端面斜槽320的深处，并由偏压弹簧40保持在该位置。另外，第二钢球65位于中间盘70的上端面斜槽701的浅处和上部截顶锥体60的下端面斜槽601的浅处，且第三钢球75位于中间盘70的下端面 斜槽702和刀座盘80上端面斜槽802的浅处。此时，刹车盘30与摩擦盘50处于脱离的不配合状态，而轴套法兰45的下表面451与摩擦盘50的摩擦材料的上表面510配合，且轴套法兰45的内锥面452与上部截顶锥体60的外表面602配合，从而带动上部截顶锥体60旋转，进而带动刀座盘80旋转。
一旦需要停止工作，参见图2，则可基于设计来拉动或推动操作致动盘10的手柄110，使致动盘10旋转，从而迫使第一钢球20都从致动盘10的下端面沿周向均匀设置的端面斜槽120的深处和刹车盘30的上端面上的端面斜槽320的深处沿端面斜槽120和端面斜槽320移向浅处，进而使刹车盘30向下轴向移动，直至刹车盘30的下表面310与摩擦盘50的摩擦材料的上表面510接触，在第二偏压弹簧62的压力抵制下产生足够的摩擦力，使摩擦盘50停止旋转。由于摩擦盘50和中间盘70是联动的，中间盘70也相应地停止旋转。此时，仍旋转的上部截顶锥体60和刀座盘80相对于已刹停的中间盘70旋转，从而带动第二钢球65从中间盘70的上端面斜槽701的浅处和上部截顶锥体60的下端面斜槽601的浅处向深处移动，同时带动第三钢球75从中间盘70的下端面斜槽702的浅处和刀座盘80上端面斜槽802的浅处向深处移动，此时上部截顶锥体60受到的轴向压力撤销，非自锁的锥面摩擦力消失，在上部截顶锥体60自身的重力和第三偏压弹簧62的辅助下，上部截顶锥体60的外表面与轴套法兰45的内锥面452脱离而解除配合。这样，上部截顶锥体60和刀座盘80也将停止旋转，使得整个系统除了轴套随驱动轴空转外，其余旋转部分都停止工作。
如果需要装置再开始工作，需要朝与刹车时相反的方向操作致动盘10的手柄110，使致动盘10旋转，从而迫使第一钢球20都从致动盘10的下端面沿周向均匀设置的端面斜槽120的浅处和刹车盘30的上端面上的端面斜槽320的浅处沿端面斜槽120和端面斜槽320移向深处，并在第一偏压弹簧40的向上偏压 下，使刹车盘30向上轴向移动，直至刹车盘30的下表面310与摩擦盘50的摩擦材料的上表面510脱离。由于第三偏压弹簧78的向上偏压作用，摩擦盘50的摩擦材料的上表面510与轴套法兰45的下表面451接触配合，从而被轴套法兰45带动而旋转，进而摩擦盘50带动中间盘70跟转，从而带动第二钢球65从中间盘70的上端面斜槽701的深处和上部截顶锥体60的下端面斜槽601的深处向浅处移动，同时带动第三钢球75从中间盘70的下端面斜槽702的深处和刀座盘80上端面斜槽802的深处向浅处移动，使得中间盘70和上部截顶锥体60都沿轴向向上移动，克服第二偏压弹簧62的向下偏压力使上部截顶锥体60的外表面602与轴套法兰45的内锥面452接触配合，从而带动上部截顶锥体60旋转，进而带动刀座盘80，使得整个系统开始工作。参见图3、图4。
本发明中，外圈摩擦盘50被施加相对较小的弹簧压力，而内圈上部截顶锥体60或圆柱体60’通过两层端面斜槽增力机构可被施加更大的压力。由于外圈摩擦盘50受到的弹簧压力小，则推动刹车盘30的致动盘10弹簧驱动力可以较小，那么人工操纵致动盘10使刹车盘30脱开摩擦盘50的操作力可以较小，从而使操作舒适不疲劳。
图6、7、8示出了上述本发明的刹车-离合装置的一种变型形式。与图1、2、3、4、5示出的刹车-离合装置100不同的是，图6、7、8中示出的刹车-离合装置100’中的主接合体采用圆柱体60’，该圆柱体60’具有位于上端的内凹陷部、与所述刀座盘80的外齿配合的内齿、第二主接合面602’和下端面。第二主接合面602’为所述圆柱体60’上端面的至少一部分，用于与所述轴套法兰45’的第一主接合面452’配合。
第二主接合面602’和第一主接合面452’基本上都为平面，且第一主接合面452’和所述第二主接合面602’上优选设有摩擦材料。
圆柱体60’的下端面在周向上设置有多个与中间盘70的多个上端面斜槽配合的下端面斜槽。
刹车-离合装置100’的工作原理与刹车-离合装置100相同，只是第二主接合面602’和第一主接合面452’配合，替代了刹车-离合装置100中的第二主接合面602和第一主接合面452配合；轴套法兰45’的下端面451’与摩擦盘50的摩擦材料的上表面510配合，替代了刹车-离合装置100中的轴套法兰45的下表面451与摩擦盘50的摩擦材料的上表面510配合。
轴套法兰45’同时设计成与圆柱体60’的结构配合的结构，这种设计对于本领域的技术人员来说容易实现，在此不予赘述。
刹车-离合装置100’的其它部件和配合关系与刹车-离合装置100相同，在此不再重复。
应当指出，虽然在上文中提及本发明适用于割草机，但本发明并不局限于此应用。
基于对本发明优选实施方式的描述，应该清楚，由所附的权利要求书所限定的本发明并不仅仅局限于上面说明书中所阐述的特定细节，未脱离本发明宗旨或范围的对本发明的许多显而易见的改变同样可能达到本发明的目的。

Claims (10)

  1. 一种离合-制动装置，包括：
    轴套，包括轴套法兰和从所述轴套法兰的下端面向内延伸的凹陷部，所述凹陷部具有第一主接合面，所述轴套在其上端连接至驱动轴使所述轴套可与所述驱动轴一起旋转，所述轴套在其下端与所述驱动轴固定连接；
    刀座盘，所述刀座盘通过第一轴承和第一限位挡圈安装在所述轴套的下端，所述刀座盘具有上端面和用于刀具安装的下端面，所述刀座盘在外周面上设有多个凹槽，且所述刀座盘一端设置有外齿；
    致动盘，所述致动盘通过第二轴承和第二限位挡圈安装在所述轴套上，所述致动盘的下端面沿周向设置有多个端面斜槽；
    刹车盘，所述刹车盘的上端面沿周向设置有与所述致动盘的下端面上的多个端面斜槽配合的相同数目的多个端面斜槽；
    多个第一钢球，所述多个第一钢球可沿所述致动盘的下端面的端面斜槽以及所述刹车盘的上端面的端面斜槽滚动，从而使所述刹车盘能轴向移动；
    多个第一偏压弹簧，所述多个第一偏压弹簧分别通过位于致动盘中的偏压弹簧孔和位于刹车盘中的偏压弹簧孔以及设置于致动盘中的偏压弹簧端部固定孔将所述致动盘和所述刹车盘连接起来；
    摩擦盘，所述摩擦盘设置在所述刹车盘和所述轴套法兰下方，且所述摩擦盘的上表面固定有摩擦材料以形成摩擦上表面，从摩擦盘的下表面向下延伸有圆筒形壁，且在所述圆筒形壁的周向带有多个缺口；
    中间盘，所述中间盘包括上端面和下端面，所述上端面在周向上设置有多个中间盘上端面斜槽，所述中间盘在其外周面上还包括径向延伸的多个凸块，所述凸块内包括偏压弹簧座孔，所述多个凸块配合于所述摩擦盘的所述 多个圆筒形壁缺口中且可移动，所述摩擦盘的圆筒形壁亦置于所述刀座盘的多个凹槽中；
    主接合体，所述主接合体上端具有内凹陷部、与所述刀座盘的外齿配合的内齿、第二主接合面和下端面，所述第二主接合面适于与所述轴套法兰的第一主接合面配合，所述主接合体的下端面在周向上设置有多个与所述中间盘的多个上端面斜槽配合的下端面斜槽；
    第二偏压弹簧，所述第二偏压弹簧坐置于所述主接合体的内凹陷部底面与设置在所述刀座盘上的第三限位挡圈之间；
    多个第二钢球，所述多个第二钢球可沿所述主接合体的下端面斜槽以及所述中间盘的上端面斜槽滚动，从而使所述主接合体能轴向移动；以及
    多个第三偏压弹簧，所述第三偏压弹簧坐置于所述中间盘的多个凸块内的偏压弹簧座孔底面和所述摩擦盘的下端面之间。
  2. 根据权利要求1所述的离合-制动装置，其特征在于，所述主接合体的至少一部分为截顶锥体，且所述第二主接合面为所述截顶锥体的外表面的至少一部分，所述第一主接合面为所述凹陷部的内锥面的至少一部分。
  3. 根据权利要求1所述的离合-制动装置，其特征在于，所述主接合体为圆柱体，且所述第二主接合面为所述圆柱体的上端面的至少一部分，所述第一主接合面为所述凹陷部的顶端面的至少一部分。
  4. 根据权利要求1-3中任一项所述的离合-制动装置，其特征在于，所述第一主接合面和所述第二主接合面的至少一个上设有摩擦材料。
  5. 根据权利要求4所述的离合-制动装置，其特征在于，所述多个为三个。
  6. 一种离合-制动装置，包括：
    轴套，包括轴套法兰和从所述轴套法兰的下端面向内延伸的凹陷部，所 述凹陷部具有第一主接合面，所述轴套在上端连接至驱动轴使所述轴套可与所述驱动轴一起旋转，所述轴套在下端与所述驱动轴固定连接；
    刀座盘，所述刀座盘通过第一轴承和第一限位挡圈安装在所述轴套的下端，所述刀座盘具有上端面和用于刀具安装的下端面，所述上端面在周向上均匀设置有多个上端面斜槽，所述刀座盘在外周面上设置有多个凹槽，且所述刀座盘设置有外齿；
    致动盘，所述致动盘通过第二轴承和第二限位挡圈安装在所述轴套上；所述致动盘的下端面沿周向均匀设置有多个端面斜槽；
    刹车盘，所述刹车盘的上端面沿周向均匀设置有与所述致动盘的下端面上的多个端面斜槽配合的相同数目的多个端面斜槽；多个第一钢球，所述多个第一钢球可沿所述致动盘的下端面的端面斜槽以及所述刹车盘的上端面的端面斜槽滚动，从而使所述刹车盘能轴向移动；
    多个第一偏压弹簧，所述多个第一偏压弹簧分别通过位于致动盘中的偏压弹簧孔和位于刹车盘中的偏压弹簧孔以及设置于致动盘中的偏压弹簧端部固定孔将致动盘和刹车盘连接起来；
    摩擦盘，所述摩擦盘设置在所述刹车盘和所述轴套法兰下方，且所述摩擦盘的上表面固定有摩擦材料以形成摩擦上表面，从摩擦盘的下表面向下延伸有圆筒形壁，且在所述圆筒形壁的周向带有多个缺口；
    中间盘，所述中间盘包括上端面和下端面，所述上端面沿周向上设置有多个中间盘上端面斜槽，所述下端面沿周向上设置有多个中间盘下端面斜槽，所述中间盘在其外周面上还包括径向延伸的多个凸块，所述凸块内包括偏压弹簧座孔，所述多个凸块配合于所述摩擦盘的所述多个缺口中且可移动，所述摩擦盘的圆筒形壁亦置于所述刀座盘的多个凹槽中；
    主接合体，所述主接合体上端具有内凹陷部、与所述刀座盘的外齿配合的内齿、第二主接合面和下端面，所述第二主接合面适于与所述轴套法兰的第一主接合面配合，所述主接合体的下端面在周向上设置有多个与所述中间盘的多个上端面斜槽配合的下端面斜槽；
    第二偏压弹簧，所述第二偏压弹簧坐置于所述主接合体的内凹陷部底面与设置在所述刀座盘上的第二限位挡圈之间；
    多个第二钢球，所述多个第二钢球可沿所述主接合体的下端面斜槽以及所述中间盘的上端面斜槽滚动，从而使所述主接合体能轴向移动；
    多个第三钢球，所述多个第三钢球可沿所述中间盘的下端面斜槽以及所述刀座盘的上端面斜槽滚动，从而使所述中间盘能轴向移动；以及
    多个第三偏压弹簧，所述第三偏压弹簧坐置于所述中间盘的多个凸起内的偏压弹簧座孔底面和所述摩擦盘的下端面之间。
  7. 根据权利要求6所述的离合-制动装置，其特征在于，所述主接合体的至少一部分为截顶锥体，且所述第二主接合面为所述截顶锥体的外表面的至少一部分，所述第一主接合面为所述凹陷部的内锥面的至少一部分。
  8. 根据权利要求6所述的离合-制动装置，其特征在于，所述主接合体为圆柱体，且所述第二主接合面为所述圆柱体的上端面的至少一部分，所述第一主接合面为所述凹陷部的顶端面的至少一部分。
  9. 根据权利要求6-8中任一项所述的离合-制动装置，其特征在于，所述第一主接合面和所述第二主接合面的至少一个上设有摩擦材料。
  10. 根据权利要求9所述的离合-制动装置，其特征在于，所述多个为三个。
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CN107152477A (zh) 2017-09-12
US10443669B2 (en) 2019-10-15
CN107152477B (zh) 2019-01-15
EP3425233A1 (en) 2019-01-09
EP3425233A4 (en) 2019-11-27
EP3425233B1 (en) 2022-10-05

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