CN201209634Y

CN201209634Y - Dry-type friction safety clutch

Info

Publication number: CN201209634Y
Application number: CNU200820098498XU
Authority: CN
Inventors: 刘东庆; 杜木信; 曹云; 赵俊渝; 阙洪军; 聂勋铁; 樊绍忠
Original assignee: Chongqing Gearbox Co Ltd
Current assignee: Chongqing Gearbox Co Ltd
Priority date: 2008-06-05
Filing date: 2008-06-05
Publication date: 2009-03-18
Anticipated expiration: 2018-06-05

Abstract

The utility model provides a dry type friction safety clutch which comprises a drive shaft (1), a transition shaft (11) and a driven shaft (8). The drive shaft (1) is sleeved with a connecting disk (2); one side with the large diameter of the connecting disk (2) is connected with an outer drum wheel (3) which is provided with an inner friction plate (4); one end of the transition shaft (11) is provided with a bearing (13), and the other end is fixedly connected with a sleeve (7) which is sleeved on the driven shaft (8); the sleeve (7) is provided with an outer friction plate (5), a supporting disk (12) and spring seats (10); a spring (6) is arranged between the spring seats (10); and one end of the sleeve (7) is screwed with an adjusting screw nut (9), so that the torque moment transmitted by the clutch can be conveniently adjusted without disassembling the clutch. The dry type friction safety clutch has simple structure and convenient use, does not have elements which are eroded easily inside, and does not need not to lubricate.

Description

The dry type friction safety clutch

Technical field

The utility model relates to the safety clutch in a kind of machine driven system, especially the friction disk type safety clutch.

Background technique

Clutch is a kind of common apparatus that plays interconnect function in machine driven system, and it can be driving shaft and driven shaft at any time separately or couple together.Existing dry friction clutch comprises driving shaft, transition axis and driven shaft, is with land on the driving shaft, and this land is fixedly connected with outer drum, and this outer drum upper spline is connected with interior friction plate; Be installed with sleeve on the described driven shaft, this sleeve is inserted with outside friction disc by spline, compresses interior outside friction disc by crank depression bar structure; This clutch in use exposes several problems, and one, crank depression bar architecture complexity, so the procedure complexity, all bring a lot of inconvenience for design and processing.Two, when the situation that super torque friction sheet skids occurring, can not regulate the rated torque that clutch needs very easily, will just can be adjusted to rated torque by dismantling clutch usually, bring a lot of inconvenience to work.

The model utility content

The purpose of this utility model provides a kind of dry type friction safety clutch, and adjusting nut is installed, and is simple in structure, easy to operate, need not dismantle the size of clutch with regard to the can regulate moment of torsion.

In order to achieve the above object, dry type friction safety clutch of the present utility model, comprise driving shaft, transition axis and driven shaft, described driving shaft is installed with land, the land larger diameter end is fixedly connected with outer drum, land rotates and drives the rotation together of external drum wheel, and described outer drum is equipped with interior friction plate by spline; The endoporus of described land larger diameter end is contained in an end of transition axis by bearing housing, and the other end of this transition axis is fixedlyed connected with the sleeve that is solidly set on driven shaft, keeps driving shaft and driven shaft concentric; Described driven shaft is with sleeve, and described sleeve is equipped with outside friction disc by spline, the alternate applying with interior friction plate of this outside friction disc; Its key is: described sleeve is installed with supporting disk at the end near land, and spacing to outside friction disc and interior friction plate, the other end is equipped with adjusting nut, can dismantle the size that clutch can be regulated moment of torsion easily; The position is equipped with spring seat between adjusting nut on the sleeve and friction plate, and this spring seat can move axially in the groove on sleeve outer wall, and in this spring seat spring is installed; One side of spring seat compresses interior outside friction disc with supporting disk, and the spring seat opposite side is near adjusting nut, and adjusting nut compresses or trip spring by this spring seat; Described adjusting nut is fixed by fixing device when being adjusted to suitable position, so just can regulate the torque of clutch transmits very easily.Particularly if during the situation that super torque friction sheet skids, make system-down by sensing device, adjusting nut can readjust the rated torque of clutch very easily then, and clutch can continue normal use.When transmitting the moment of torsion of different sizes, can also realize by the number of the increase or the sheet of reducing friction, and the radial dimension of clutch does not increase thereupon, required axial pressing force need not increase yet, because the radial dimension of multi-plate friction clutch is less, thereby its rotary inertia is also less, is applicable to high speed rotating.

Effect of the present utility model: simple in structure, the handling safety of this dry type friction safety clutch, replace crank depression bar structure with adjusting nut, all bring a lot of convenience for design and processing, and inside do not have easy corrosion element, do not need to lubricate yet.When system works just often, it can couple together driving shaft and driven shaft effectively; When the operation torque of transmission system surpassed certain limit, clutch can skid automatically, made the not reason overload damage of relevant part or system.Rotate adjusting nut, compress or trip spring, just can dismantle the torque that clutch just can be regulated clutch transmits very easily.When transmitting the moment of torsion of different sizes, can also realize that because the radial dimension of multi-plate friction clutch is less, thereby its rotary inertia is also less, can high speed rotating by the number of the increase or the sheet of reducing friction.

Description of drawings

Fig. 1 is a structural drawing of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

As shown in Figure 1: this dry type friction safety clutch comprises driving shaft 1, transition axis 11 and driven shaft 8, this dry friction clutch can be at any time driving shaft and driven shaft separately or couple together, described driving shaft 1 is installed with land 2, friction plate 4 in the fixedly connected outer drum 3 of land 2 larger diameter end one side, described outer drum 3 are equipped with by spline; The endoporus of the larger diameter end of described land 2 is sleeved on an end of transition axis 11 by bearing 13, and the other end of this transition axis 11 is fixedlyed connected with the sleeve 7 on being solidly set on driven shaft 8, keeps driving shaft 1 and driven shaft 8 concentrics; Described driven shaft 8 is with sleeve 7, and this sleeve 7 is equipped with outside friction disc 5 by spline; The alternate applying of interior friction plate 4 with outside friction disc; End at sleeve 7 close lands 2 is fixed with supporting disk 12, and internally friction plate and outside friction disc are spacing, and the other end screw thread is equipped with adjusting nut 9, utilizes adjusting nut 9 can dismantle the size that clutch just can be regulated moment of torsion easily.Adjusting nut and the position between the friction plate at sleeve 7 are equipped with spring seat 10, and this spring seat 10 can move axially in the groove on sleeve 7 outer walls, and in this spring seat spring 6 is installed; One side spring seat and supporting disk 12 compress interior outside friction disc, and the opposite side spring seat is near adjusting nut 9, and move axially with adjusting nut, and adjusting nut 9 compresses or trip spring 6 by this spring seat.Described sleeve 7 is processed with outside thread away from an end of land 2, this adjusting nut 9 is threaded with sleeve 7, be transferred to suitable position when adjusting nut and fix, so just can dismantle the torque that clutch just can be regulated clutch transmits very easily by fixing device.

Claims

1, a kind of dry type friction safety clutch, comprise driving shaft (1), transition axis (11) and driven shaft (8), described driving shaft (1) is with land (2), land (2) larger diameter end one side is fixedly connected with outer drum (3), and described outer drum (3) is equipped with interior friction plate (4) by spline; Described land (2) larger diameter internal bore is sleeved on an end of transition axis (11) by bearing (13), and the other end of this transition axis (11) is fixedlyed connected with the sleeve (7) on being enclosed within driven shaft (8), keeps driving shaft (1) and driven shaft (8) concentric; Described sleeve (7) is fitted with outside friction disc (5) by spline; This outside friction disc (5) and the alternate applying of interior friction plate (4), it is characterized in that: described sleeve (7) is installed with supporting disk (12) at the end near land (2), internally outside friction disc is spacing, the other end screw thread is equipped with adjusting nut (9), between friction plate and adjusting nut (9), spring seat (10) is installed, spring (6) is installed in this spring seat (10), and a side of spring seat compresses interior outside friction disc with supporting disk (12), and the opposite side of spring seat is near adjusting nut (9).