CN208185275U

CN208185275U - Explosion-proof clutch

Info

Publication number: CN208185275U
Application number: CN201820727963.5U
Authority: CN
Inventors: 赵冠宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-16
Filing date: 2018-05-16
Publication date: 2018-12-04
Anticipated expiration: 2028-05-16

Abstract

The utility model discloses a kind of explosion-proof clutchs, including input shaft, end cap, dustproof cover and the belt pulley being rotatably installed on input shaft, it further include separator disk, friction plate assembly and gland, the dustproof cover is fixed on the outer end face of belt pulley, the end cap is connected by key axially to be docked on input shaft and by sealing ring with the inner face of belt pulley, separator disk is mounted in end cap by the way that several spring screws are axially slidable, friction plate assembly is socketed between the belt pulley and end cap on the outside of separator disk, gland is fixed on the outer end face of end cap and axially docks with the outer end face of friction plate assembly, the oil duct being connected to separator disk inner face is equipped on end cap, the air flue being connected to friction plate assembly inner face.The utility model both ensure that sufficient lubrication and cooling, increases the service life of clutch, and realize the transmitting of power, instead of the presence of flame proof contact surface, reduces cost, explosion insulation performance is permanent.

Description

Explosion-proof clutch

Technical field

The utility model relates to Clutch Technology field more particularly to a kind of explosion-proof clutchs.

Background technique

In underground coal mine assistant conveyance vehicle, machine driving is accounted for greatly.And in machine driving, clutch is made For the power transmission for cutting off and connecting transmission, it is ensured that steadily reliably connect reasonable match system in starting It closes, enables the vehicle to smoothly start to walk；In shift, thoroughly reasonable match can be united rapidly and separated, reduced in speed changer Impact between gear.When vehicle is by excessive load, slipping of clutch also can protect transmission system, prevent damage parts. In the use process of clutch, frequent engagement and sliding wear keep friction plate very easy to wear, and the heat that sliding wear generates gathers and makes to press The Part temperatures such as disk and flywheel increase, or even generate friction spark.

It is well known that underground coal mine uses in this environment there are Gas Outburst and coal dust explosion hazard, clutch must Blast resistance construction must be used, makes it that can not generate spark in design size, to realize explosion-proof.As Authorization Notice No. is The Chinese patent of CN2387313Y discloses a kind of explosion-proof clutch, and clutch master is housed between belt pulley and pulley cap Movable plate and clutch driven plate, mating surface have 2 explosion suppresion surfaces, and the contact surface of explosion suppresion surface and pulley cap also has 2 explosion suppresion surfaces, Also there is an explosion suppresion surface between adjusting threaded spindle and the hole of belt pulley, the inner hole of belt pulley left part is also 1 explosion suppresion surface；All explosion suppresion surfaces are equal By phosphorating treatment, clutch using when be not susceptible to spark, spark is also not easy to leak, therefore is suitable for coal mine equipment, safety Reliably.

Practice have shown that, there are still following problems for the explosion-proof clutch of above structure by long-term:

1, the reason of designing because of structure keeps existing flame proof contact surface excessive, increases the cost of technological processing for explosion protection feature；

2, flame proof is realized only by the corresponding contact surface of phosphorating treatment, it is preferable using initial performances, but as engagement is slided The increase of number is ground, phosphatization explosion suppresion surface is gradually worn out, and explosion insulation performance is lower and lower；

3, in the shift course of work, high speed rotation fever can make the component of docking that scaling loss and buckling deformation occur, thus Influence the service life of clutch.

Utility model content

It is good that the purpose of this utility model is to provide a kind of explosion-proof effects, and the service life is long, the explosion-proof clutch of high reliablity.

This explosion-proof clutch provided by the utility model, including input shaft, end cap, dustproof cover and it is rotatably installed in input Belt pulley on axis further includes separator disk, friction plate assembly and gland, and the dustproof cover is fixed on the outer end face of belt pulley, The end cap is connected by key axially to be docked on input shaft and by sealing ring with the inner face of belt pulley, if separator disk passes through Dry spring screw is axially slidable to be mounted in end cap, friction plate assembly be socketed in belt pulley on the outside of separator disk and end cap it Between, gland is fixed on the outer end face of end cap and axially docks with the outer end face of friction plate assembly, is equipped with and separates on end cap The oil duct of disk inner face connection, the air flue being connected to friction plate assembly inner face.

To be easily installed and replacing, the belt pulley is rotatably installed in input shaft by the rolling bearing of two reversed arrangements On, the self-locking nut with rolling bearing outer end face axial compression connection is installed on input shaft.

To keep the loss late of hydraulic oil lower, at least provided with two on the cylindrical surface that the separator disk is docked with end cap radial direction A oil sealing, oil duct are connected to the separator disk inner face between two oil sealings.

For guarantee rotary seal effect, the sealing ring along input shaft axial reversed arrangement there are two, each sealing ring It is composed of built-in U-shaped sealing ring and external O-ring seal.

For convenience of processing, the inner cylinder face of each U-shaped sealing ring is connect with end cover clearance, and the air flue passes through each U-shaped sealing Circle is connected to the gap between end cap with friction plate assembly inner face.

The oblique oil duct of connection input shaft and end cap is equipped on the belt pulley.

The radial direction oil of connection belt pulley and separator disk is equipped on the end cap.

To keep explosion-proof effect more preferable, the plane that the dustproof cover is docked with belt pulley uses phosphorating treatment.

The utility model passes through the mounting structure for changing existing end cap, dustproof cover and belt pulley, and in end cap and belt pulley Between add separator disk, friction plate assembly and gland, slid axially and friction plate using hydraulic oil driving separator disk in end cap Component compresses, and the high-speed rotating rotational power of end cap is effectively given to belt pulley, both ensure that sufficient lubrication and cooling, increases Add the service life of clutch, and realized the transmitting of power, instead of the presence of flame proof contact surface, reduces cost, explosion insulation performance For a long time.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Label and corresponding component name shown in figure are as follows:

1, input shaft；2, end cap；3, belt pulley；4, dustproof cover；5, separator disk；6, friction plate assembly；7, gland；8, it seals Circle；9, spring screw；10, rolling bearing；11, self-locking nut；12, oil sealing；21, oil duct；22, air flue；23, radial direction oil；31, Oblique oil duct；61, internal toothed friction plate；62, external tooth steel disc；81, U-shaped sealing ring；82, O-ring seal.

Specific embodiment

It will be seen from figure 1 that the utility model provides a kind of explosion-proof clutch, including input shaft 1, end cap 2, belt pulley 3, dustproof cover 4, separator disk 5, friction plate assembly 6, gland 7, sealing ring 8 and several spring screws 9, wherein

End cap 2 is connected on the input terminal of input shaft 1 by involute spline, and oil duct 21, air flue 22 are equipped on end cap With radial direction oil 23, a ladder annular groove 24 is provided on the outer end face of end cap 2,

Belt pulley 3 is rotatably installed on the output end of input shaft 1 by the rolling bearing 10 of two reversed arrangements, belt pulley 3 inner face docks arrangement with the outer end face of end cap 2, and self-locking nut 11 is equipped on the end of 1 output end of input shaft, should be certainly Split nut 11 is connect with 10 outer end face axial compression connection of rolling bearing, on pulley 3 be equipped with connection input shaft 1 and end cap 2 it is oblique Oil duct 31,

Dustproof cover 4 is removably fixed on the outer end face of belt pulley 3 by threaded fastener,

Separator disk 5 is in stepped annular and is socketed in the annular groove 24 of end cap 2, the inner cylinder face and annular groove of separator disk 5 The external cylindrical surface of the connection of 24 sidewall spacers, separator disk 5 is docked by least two oil sealings 12 with 24 side wall radial seal of annular groove, Oil sealing 12 is distributed in the two sides of the step surface of 5 inner end of separator disk, and oil duct 21 is connected to the step surface of 5 inner end of separator disk, point Separation disc 5 is connected to belt pulley 3 by radial direction oil 23,

Friction plate assembly 6 is socketed between the belt pulley 3 and end cap 2 in 5 outside of separator disk, and wherein friction plate assembly 6 is by interior Tooth friction plate 61 and 62 cross lamination of external tooth steel disc form, internal toothed friction plate 61 than external tooth steel disc 62 quantity more than one, internal tooth Friction plate 61 and end cap 2 cooperate, and external tooth steel disc 62 and belt pulley 3 cooperate,

Gland 7 is removably fixed on the outer end face of end cap 2 by threaded fastener, the inner face of gland 7 and friction The outer end face of internal toothed friction plate 61 axially docks on piece component 6,

Sealing ring 8 is connected between the outer end face of end cap 2 and the inner face of belt pulley 3 along the axial direction of input shaft 1, and is sealed It enclosing there are two 8 reversed arrangements, each sealing ring 8 is composed of built-in U-shaped sealing ring 81 and external O-ring seal 82, The inner cylinder face of each U-shaped sealing ring 81 is connect with 2 gap of end cap, between air flue 22 passes through between each U-shaped sealing ring 81 and end cap 2 Gap is connected to the inner face of internal toothed friction plate 61 on friction plate assembly 6,

The thread segment gap of spring screw 9 passes through separator disk 5 and is threadedly coupled with end cap 2.

In the present invention, the plane that dustproof cover 4 is docked with belt pulley 3 uses phosphorating treatment.

The motion process of the utility model is as follows:

1, input shaft 1 drives end cap 2 and separator disk 5 to rotate, and separator disk 5 is acted in the pressure on top surface of 9 upper spring of spring screw Under, it is close to the arrangement of end cap 2, the internal toothed friction plate 61 and external tooth steel disc 62 on friction plate assembly 6 are in discrete state, belt pulley 3 For stationary state；

2, when shifting gears, spring screw 9 is overcome from oil duct 21 to hydraulic oil, separator disk 5 is injected between end cap 2 and separator disk 5 The pressure on top surface of upper spring is to 6 one Slideslip of friction plate assembly, and air between separator disk 5 and friction plate assembly 6 is from 22 row of air flue Out, 5 axial compression internal toothed friction plate 61 of separator disk, 61 axial compression external tooth steel disc 62 of internal toothed friction plate, in the friction of friction plate Under resistance, the power come out from input shaft 1 is transmitted on belt pulley 3, and belt pulley 3 rotates, and realizes power transmission.

Claims

1. a kind of explosion-proof clutch, including input shaft (1), skin end cap (2), dustproof cover (4) and be rotatably installed on input shaft Belt wheel (3), it is characterised in that: further include that separator disk (5), friction plate assembly (6) and gland (7), the dustproof cover are fixed in skin On the outer end face of belt wheel, the end cap is connected by key on input shaft and by the inner face axis of sealing ring (8) and belt pulley To docking, separator disk is mounted in end cap by the way that several spring screws (9) are axially slidable, and friction plate assembly is socketed in separation Between belt pulley and end cap on the outside of disk, the outer end face that gland is fixed on the outer end face of end cap and with friction plate assembly is axially right It connects, the oil duct (21) being connected to separator disk inner face, the air flue (22) being connected to friction plate assembly inner face is equipped on end cap.

2. explosion-proof clutch according to claim 1, it is characterised in that: the belt pulley passes through the rolling of two reversed arrangements Bearing (10) is rotatably installed on input shaft, and the self-locking nut with rolling bearing outer end face axial compression connection is equipped on input shaft (11).

3. explosion-proof clutch according to claim 1, it is characterised in that: in the circle that the separator disk is docked with end cap radial direction At least provided with two oil sealings (12) on cylinder, oil duct is connected to the separator disk inner face between two oil sealings.

4. explosion-proof clutch according to claim 1, it is characterised in that: axial direction reversed cloth of the sealing ring along input shaft There are two setting, each sealing ring is composed of built-in U-shaped sealing ring (81) and external O-ring seal (82).

5. explosion-proof clutch according to claim 4, it is characterised in that: between the inner cylinder face and end cap of each U-shaped sealing ring Gap connection, the air flue are connected to by the gap between each U-shaped sealing ring and end cap with friction plate assembly inner face.

6. explosion-proof clutch according to claim 1, it is characterised in that: on the belt pulley be equipped with connection input shaft and The oblique oil duct (31) of end cap.

7. explosion-proof clutch according to claim 1, it is characterised in that: be equipped with connection belt pulley on the end cap and divide The radial direction oil (23) of separation disc.

8. explosion-proof clutch according to claim 1, it is characterised in that: the plane that the dustproof cover is docked with belt pulley is adopted Use phosphorating treatment.