CN213360891U

CN213360891U - Spiral separation clutch

Info

Publication number: CN213360891U
Application number: CN202021841611.6U
Authority: CN
Inventors: 马明杰; 张鑫; 宋世杰
Original assignee: Xiangyang Weilite Machinery Co ltd
Current assignee: Xiangyang Weilite Machinery Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-06-04
Anticipated expiration: 2030-08-28

Abstract

The utility model relates to a clutch technical field especially relates to a spiral separation clutch, and it includes power shaft and hollow screw, the power shaft with the coaxial nevertheless contactless of hollow screw, the power shaft rotates and is connected with output assembly, power shaft sliding connection has friction disc subassembly, the power shaft is provided with the handle the friction disc subassembly is pushed output assembly's spring, hollow screw threaded connection has the handle the friction disc subassembly is pulled away output assembly's a subassembly that draws. The utility model discloses a helical structure's shift fork produces rectilinear movement when utilizing the spiral to rotate to the slip component among the drive clutch, thereby realize the separation of clutch. The utility model discloses novel structure, succinct use can convert the linear motion with the power shaft quadrature into the linear motion of power shaft direction, convenient operation.

Description

Spiral separation clutch

Technical Field

The utility model relates to a clutch technical field especially relates to a spiral separation clutch.

Background

The clutch is widely applied to power control of mechanical equipment, and a harvesting system and a walking system of the sugarcane harvester are two non-interfering motion systems, and only one power source of the sugarcane harvester is needed, so that the clutch is needed to be arranged to control the execution operation of the harvesting system when the power source transmits power to the harvesting system. The common clutch adopts a shifting fork to control the separation action, for example, a car can be operated by stepping on, while the sugarcane harvester generally adopts a pull rod type operation, and continues to adopt a shifting fork structure, so that the structure is complex and the fault is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art not enough, and provide a spiral separation clutch, produce linear motion when it adopts helical motion to replace shift fork drive clutch separation.

The utility model provides a technical scheme that its technical problem adopted is: a spiral separation clutch comprises a power shaft and a hollow screw, wherein the power shaft and the hollow screw are coaxial but not in contact, the power shaft is rotatably connected with an output assembly, the power shaft is connected with a friction disc assembly in a sliding mode, the power shaft is provided with a spring for pushing the friction disc assembly to the output assembly, and the hollow screw is connected with a pull cylinder assembly for pulling the friction disc assembly away from the output assembly in a threaded mode.

Further, the power shaft comprises a round shaft, a prismatic shaft and a threaded shaft, the output assembly is connected with the round shaft in a rotating mode through a bearing, the friction disc assembly is sleeved on the prismatic shaft, the threaded shaft is provided with a gasket and a nut, and two ends of the spring respectively abut against the friction disc assembly and the gasket.

Further, the output assembly includes a sprocket and a driven friction disk integrally fixed, and the friction disk assembly includes a driving friction disk and a tail flange integrally fixed, wherein the driven friction disk and the driving friction disk are opposite.

Further, the slide subassembly include with hollow screw threaded connection's round nut, the one end of round nut is provided with the tang, the card is gone into in the tang has the arm-tie, the arm-tie is two semicircle rings, the arm-tie is provided with spherical groove, spherical groove spherical is connected with and contradicts respectively the arm-tie with the steel ball of flange, the round nut is provided with a plurality of handle the arm-tie compresses tightly the clamp plate of round nut, the cross-section of clamp plate becomes the L type, the clamp plate passes through the fix with screw in the round nut.

Furthermore, the round nut is provided with a swing plate.

Further, the thread pitch of the hollow screw is larger than 10 mm.

The utility model has the advantages that: a spiral separation clutch comprises a power shaft and a hollow screw, wherein the power shaft and the hollow screw are coaxial but not in contact, the power shaft is rotatably connected with an output assembly, the power shaft is connected with a friction disc assembly in a sliding mode, the power shaft is provided with a spring for pushing the friction disc assembly to the output assembly, and the hollow screw is connected with a pull cylinder assembly for pulling the friction disc assembly away from the output assembly in a threaded mode. The utility model discloses a helical structure's shift fork produces rectilinear movement when utilizing the spiral to rotate to the slip component among the drive clutch, thereby realize the separation of clutch. The utility model discloses novel structure, succinct use can convert the linear motion with the power shaft quadrature into the linear motion of power shaft direction, convenient operation.

Drawings

Fig. 1 is a perspective view of a helical disconnect clutch of the present invention;

fig. 2 is a cross-sectional view of a helical disconnect clutch of the present invention.

Description of reference numerals:

1-power shaft, 11-round shaft, 12-prismatic shaft, 13-threaded shaft, 2-hollow screw, 3-output component, 31-chain wheel, 32-driven friction disk, 4-friction disk component, 41-driving friction disk, 42-flange, 5-spring, 6-gasket, 7-nut, 8-pull barrel component, 81-round nut, 811-spigot, 82-pull plate, 821-spherical groove, 83-steel ball, 84-press plate and 9-swing plate.

Detailed Description

The following detailed description of the present invention is provided in connection with the accompanying drawings and the embodiments, and is not intended to limit the scope of the invention.

As shown in fig. 1-2, a helical clutch according to the present embodiment includes a power shaft 1 and a hollow screw 2, the power shaft 1 is coaxial with the hollow screw 2 but not in contact with the hollow screw 2, the power shaft 1 is rotatably connected with an output assembly 3, the power shaft 1 is slidably connected with a friction disc assembly 4, the power shaft 1 is provided with a spring 5 for pushing the friction disc assembly 4 to the output assembly 3, and the hollow screw 2 is threadedly connected with a pull cylinder assembly 8 for pulling the friction disc assembly 4 away from the output assembly 3.

The power shaft 1 and the hollow screw 2 are coaxial in the embodiment, the hollow screw 2 is sleeved outside the power shaft 1 and is not in contact with the power shaft 1, the power shaft 1 is connected with a power source mechanism, generally an engine, a gear box and the like, and the hollow screw 2 is fixed on an outer shell. Under the action of the spring 5, the friction disc assembly 4 is always in contact with the output assembly 3, so that the power of the power shaft 1 is transmitted to the output assembly 3 through friction force, when the pull cylinder assembly 8 moves spirally along the hollow screw rod 2, the pull cylinder assembly 8 pulls the friction disc assembly 4 to slide along the power shaft 1, so that the friction disc assembly 4 is separated from the output assembly 3, and at the moment, the output assembly 3 is in rotary connection with the power shaft 1, so that the output assembly 3 does not rotate. This embodiment structure science, convenient operation enables equipment more exquisite.

The power shaft 1 comprises a round shaft 11, a prismatic shaft 12 and a threaded shaft 13, the output assembly 3 is rotatably connected with the round shaft 11 through a bearing, the friction disc assembly 4 is sleeved on the prismatic shaft 12, the threaded shaft 13 is provided with a gasket 6 and a nut 7, and two ends of the spring 5 respectively abut against the friction disc assembly 4 and the gasket 6. The prismatic shaft 12 is a regular polygonal shaft, in this embodiment, a hexagonal shaft is adopted, so that the friction disc assembly 4 can slide along the power shaft 1 and can rotate along with the power shaft 1, the prismatic shaft 12 can also be a round shaft provided with a key slot or a spline shaft, and the spring 5 is sleeved on the prismatic shaft 12.

The output assembly 3 includes a sprocket 31 and a driven friction disk 32 fixed as one body, and the friction disk assembly 4 includes a driving friction disk 41 and a tail flange 42 fixed as one body, the driven friction disk 32 and the driving friction disk 41 being opposite to each other. The output assembly 3 comprises the driven friction disk 32 for receiving power and a chain wheel 31 for outputting power, and the chain wheel 31 can also be a gear, a pulley or other structures. The driven friction disc 31 may be provided as a friction disc base, and then a friction plate may be provided on the friction disc base.

The slide subassembly 8 include with hollow screw 2 threaded connection's round nut 81, the one end of round nut 81 is provided with tang 811, the card has the arm-tie 82 in the tang 811, the arm-tie 82 is two semicircle rings, the arm-tie 82 is provided with spherical groove 821, spherical groove 821 spherical connection has the conflict respectively the arm-tie 82 with the steel ball 83 of flange 42, round nut 81 is provided with a plurality of and is compressed tightly the arm-tie 82 to round nut 81's clamp plate 84, the cross-section of clamp plate 84 becomes the L type, clamp plate 84 passes through the fix with screw in round nut 81. In order to prevent the flange 42 from rotating with the pull plate 82, the pull plate and the pull plate are connected in a spherical manner by the movable steel ball 83, so that the round nut 81 cannot rotate without manual operation to affect the function of the clutch.

The utility model discloses mainly be applied to pull rod formula operating clutch, so, round nut 81 is provided with wobble plate 9, works as like this during the wobble plate 9 swings, round nut 81 is the spiral and rotates to the pulling friction disk assembly 4 is contradicted spring 5 with the separation of output assembly 3, thereby realize the clutch separation. The swing angle of the swing plate 9 is generally 0-120 °, that is, the angle of rotation of the round nut 81 when the swing plate 9 swings is not greater than 120 °, that is, the linear movement generated when the round nut 81 performs a screw motion is not greater than 1/3 screw pitches, and when the driving friction disc 41 and the driven friction disc 32 are separated, the distance between the two is preferably greater than 3mm, so that the screw pitch of the hollow screw 2 is greater than 10 mm.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A helical disconnect clutch, characterized by: the friction disc type friction disc device comprises a power shaft and a hollow screw, wherein the power shaft is coaxial with the hollow screw but not in contact with the hollow screw, the power shaft is rotatably connected with an output assembly, the power shaft is slidably connected with a friction disc assembly, the power shaft is provided with a spring for pushing the friction disc assembly to the output assembly, and the hollow screw is in threaded connection with a pull cylinder assembly for pulling the friction disc assembly away from the output assembly.

2. A helical disconnect clutch according to claim 1, wherein: the power shaft comprises a round shaft, a prismatic shaft and a threaded shaft, the output assembly is rotatably connected with the round shaft through a bearing, the friction disc assembly is sleeved on the prismatic shaft, the threaded shaft is provided with a gasket and a nut, and two ends of the spring respectively abut against the friction disc assembly and the gasket.

3. A helical disconnect clutch according to claim 1, wherein: the output assembly comprises a chain wheel and a driven friction disc which are fixed into a whole, the friction disc assembly comprises a driving friction disc and a tail flange which are fixed into a whole, and the driven friction disc is opposite to the driving friction disc.

4. A helical disconnect clutch according to claim 3, wherein: the slide subassembly include with hollow screw threaded connection's round nut, the one end of round nut is provided with the tang, the card goes into in the tang has the arm-tie, the arm-tie is two semicircle rings, the arm-tie is provided with spherical groove, spherical groove spherical is connected with and contradicts respectively the arm-tie with the steel ball of flange, the round nut is provided with a plurality of handle the arm-tie compresses tightly the clamp plate of round nut, the cross-section of clamp plate becomes the L type, the clamp plate passes through the fix with screw in round nut.

5. The helical disconnect clutch of claim 4, wherein: the round nut is provided with a swing plate.

6. A helical disconnect clutch according to claim 1, wherein: the thread pitch of the hollow screw is larger than 10 mm.