CN201368154Y

CN201368154Y - Air-operated clutch

Info

Publication number: CN201368154Y
Application number: CNU200920116454XU
Authority: CN
Inventors: 苗发成; 吕培峰; 王荣伟
Original assignee: NINGBO XINDA PRINTING MACHINERY CO Ltd
Current assignee: NINGBO XINDA PRINTING MACHINERY CO Ltd
Priority date: 2009-03-24
Filing date: 2009-03-24
Publication date: 2009-12-23
Anticipated expiration: 2019-03-24

Abstract

The utility model discloses an air-operated clutch, comprising a shaft sleeve (2), a power output shaft (12), and a moving meshing plate (8) and a fixing meshing plate (11) which are meshed with each other or are separated from each other; the fixing meshing plate (11) is rotationally connected with the shaft sleeve (2) and is connected with the power output shaft (12) in a screwing way, and the moving meshing plate (8) is connected with the shaft sleeve (2) in a sliding way by a spline, a spring seat (10) matched with the shaft sleeve (2) is arranged in the fixing meshing plate (11), one end of a spring (9) is leaned against to the bottom surface of a spring hole on the moving meshing plate (8), and the other end thereof is leaned against to the bottom surface of the spring hole. After adopting the structure, automation operation can be ensured to realize, the reliability of switching action is improved, and the service life of the clutch is prolonged.

Description

Pneumatic clutch

Technical field

The utility model relates to a kind of clutch, specifically is a kind of pneumatic clutch.

Background technique

At present, the control mode of whether exporting at outputting axial power mainly adopts clutch to finish.Clutch is of a great variety on the market, generally can be divided into manual clutch and magnetic clutch, but these two kinds of clutches all have shortcoming: 1. the operation of manual clutch is not suitable for the occasion that automaticity is had relatively high expectations, particularly in the occasion of many output shafts, judge whether every output shaft wants outputting power, operator are easy to make mistakes, and when the regular switching of needs, just seem incompetent unable, reduce manufacturing efficiency so greatly, can't satisfy the requirement of automaticity; Though 2. magnetic clutch can satisfy the requirement of automaticity, but need to increase brush, and brush in use for some time, will wear and tear in the copper ring surface, thereby causing the unreliable or surface oxidising of contact to form opens circuit, the reliability of the switching of clutch will reduce like this, simultaneously also can reduction of service life.

The model utility content

Technical problem to be solved in the utility model is to provide a kind of and can realize the automation requirement, and improve the pneumatic clutch that clutch switches reliability and increases the service life.

For solving the problems of the technologies described above, the pneumatic clutch that the utility model provides, it comprises the axle sleeve that is connected with the power input shaft key, pto, mobile mesh plate that is meshing with each other or throws off and fixed engagement dish, described fixed engagement dish is rotationally connected with axle sleeve and is connected with the pto screw, axle sleeve is rotatably connected to fixed bearing block by bearing I, described fixed bearing block is sliding combined with the moving shaft holder with ventilating hole outward, described moving shaft holder is rotationally connected by bearing I I and mobile mesh plate, and described mobile mesh plate is slidingly connected through spline and axle sleeve; Be provided with in the described fixed engagement dish and the friction tight spring seat of axle sleeve, an end of spring is to the spring eye bottom surface to mobile mesh plate, and the other end is to the spring eye bottom surface to spring seat.

After adopting above structure, the utility model compared with prior art, has following advantage:, thereby finish air cavity inflation or the venting that forms between moving shaft holder and the fixed bearing block because this clutch is to come switch motion by the gas circuit of the valve of central controller controls electromagnetism; If inflation, mobile mesh plate and the engagement of fixed engagement dish, power is delivered to pto from power input shaft; If venting, mobile mesh plate and fixed engagement dish are thrown off, and cut off the power of pto; This clutch mode has overcome the defective of traditional control method, guarantees to realize automation mechanized operation, improves the reliability of switch motion more and has prolonged working life of clutch.

Description of drawings

Shown in the drawings is the sectional structure schematic representation of the utility model pneumatic clutch.

Wherein, 1, power input shaft; 2, axle sleeve; 3, bearing I; 4, fixed bearing block; 5, ventilating hole; 6, moving shaft holder; 7, bearing I I; 8, mobile mesh plate; 9, spring; 10, spring seat; 11, fixed engagement dish; 12, pto.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.

By the sectional structure schematic representation of the utility model pneumatic clutch shown in the drawings as can be known, this pneumatic clutch, comprise the axle sleeve 2, the pto 12 that are connected with power input shaft 1 key, the mobile mesh plate 8 and the fixed engagement dish 11 that are meshing with each other or throw off, described fixed engagement dish 11 is rotationally connected with axle sleeve 2 and is connected with pto 12 screws.Axle sleeve 2 is rotatably connected to fixed bearing block 4 by bearing I 3, is sliding combined with the moving shaft holder 6 with ventilating hole 5 outside the described fixed bearing block 4, has just formed an air cavity like this between moving shaft holder 6 and the fixed bearing block 4.Described moving shaft holder 6 is rotationally connected with mobile mesh plate 8 by bearing I I 7, and described mobile mesh plate 8 is slidingly connected through spline and axle sleeve 2.Be provided with in the described fixed engagement dish 11 and axle sleeve 2 friction tight spring seats 10, an end of spring 9 is to the spring eye bottom surface to mobile mesh plate 8, and the other end is to the spring eye bottom surface to spring seat 10.Described mobile mesh plate 8 and fixed engagement dish 11 equal end faces have the fluted disc of engaging tooth.

During work, power input shaft 1 will rotatablely move and pass to axle sleeve 2, and axle sleeve 2 passes to mobile mesh plate 8 by the spline connection rotatablely moving.Simultaneously, gas enters in the air cavity of moving shaft holder 6 and fixed bearing block 4 formation from the ventilating hole 5 on the moving shaft holder 6, moving shaft holder 6 is moved toward pto 12 directions, driving mobile mesh plate 8 so also moves toward pto 12 directions, spring 9 also is compressed simultaneously, until meshing with fixed engagement dish 11.This moment, power just was delivered to pto 12 by power input shaft 1.When the needs power cut, only need ventilating hole 5 venting, the pressure of gas reduces gradually in the air cavity that forms between moving shaft holder 6 and the fixed bearing block 4, spring 9 resets under the effect of spring force, promote mobile mesh plate 8, moving shaft holder 6 moves to power input shaft 1 direction, thereby mobile mesh plate 8 and fixed engagement dish 11 are thrown off, finish the cut-out of power like this.

Claims

1, a kind of pneumatic clutch, comprise the axle sleeve (2) that is connected with power input shaft (1) key, pto (12), mobile mesh plate (8) that is meshing with each other or throws off and fixed engagement dish (11), described fixed engagement dish (11) is rotationally connected with axle sleeve (2) and is connected with pto (12) screw, it is characterized in that: axle sleeve (2) is rotatably connected to fixed bearing block (4) by bearing I (3), described fixed bearing block (4) is outer to be sliding combined with the have ventilating hole moving shaft holder (6) of (5), described moving shaft holder (6) is rotationally connected with mobile mesh plate (8) by bearing I I (7), and described mobile mesh plate (8) is slidingly connected through spline and axle sleeve (2); Be provided with in the described fixed engagement dish (11) and the friction tight spring seat of axle sleeve (2) (10), an end of spring (9) is to the spring eye bottom surface to mobile mesh plate (8), and the other end is to the spring eye bottom surface to spring seat (10).