CN208487145U - A kind of pneumatic dry type high-speed friction clutch-brake of metal forming machinery - Google Patents

Abstract

The utility model discloses a kind of pneumatic dry type high-speed friction clutch-brakes of metal forming machinery, belong to Clutch Technology field.It includes the second friction plate of clutch discs and the first friction plate and brake disc that are arranged in clutch discs and setting on the disc brake rotor, wherein the disk of the clutch discs offers several through-holes, the mounting surface of first friction plate is equipped with the first protrusion cooperated with circular hole, and the first friction plate is alternately fixed in clutch discs；The disk of brake disc offers several through-holes, and the mounting surface of the second friction plate is equipped with the second protrusion cooperated with circular hole, and the second friction plate is alternately fixed on the disc brake rotor.By using the mode of friction plate, thickness is suitable, amount of heat a part that rubbing surface generates is transferred in clutch discs either brake disc by matrix, another part is transferred in clutch discs either brake disc by protrusion, so that the good heat dissipation effect of friction plate, the thermal stress that friction high temperature generates is eliminated in time, effectively extends the service life of friction plate.

Description

A kind of pneumatic dry type high-speed friction clutch-brake of metal forming machinery

Technical field

The utility model belongs to Clutch Technology field, high with pneumatic dry type more specifically to a kind of metal forming machinery Fast friction clutch-brake is used for the clutch or braking of non-terrestrial vehicle class running device, such as metal forming machinery, including forming Forging hammer, mechanical press, hydraulic press, fly press and horizontal forging and upsetting machine and uncoiler, straightening machine, cutter, forging operation The ancillary equipments such as machine play the role of the control to moving slide block and stop rapidly.

Background technique

Air clutch brake is to push friction component to decontrol to transmit power by resetting spring by air pressure.Mesh Preceding pneumatic clutch is mainly used in the between centers for needing to generate separation and engagement movement, and transmits power.The gas of the prior art Its braking torque of moving plate type friction brake is generally clutch torque 60%~70%.And its main part is all made of cast iron materials It is made, uneven due to cast iron quality density, the degree of unbalancedness of cast iron part is very high；Its brake strip group and clutch Friction plate group is fixed on the steel baseplate of thickness 5mm or more, and substrate is suspended on 2 guide pins, with meet clutch disengage or The requirement of friction plate group axial movement, there must be gap when braking disengages between substrate and guide pin.

Usual air clutch brake is made of upper cover, piston, clutch discs, separator disk, pedestal, friction plate, spring, pedestal Centre installation driven shaft, upper cover is fixed by bolts to the upper end of pedestal, rotates simultaneously with driven shaft, the inner cavity of upper cover and piston Upper plane, due to the axial movement self-assembling formation air cavity of piston, clutch discs and separator disk are equipped with friction plate, and pedestal is fixed with key On driven shaft, separator disk, which is fixed on the rack, does not take exercises, and clutch discs are fixed on flywheel to be rotated simultaneously with flywheel.Friction plate It is whole circle arrangement on substrate, the heat that friction material is generated in engagement is not easy to distribute, and it is serious to often result in disk brake High temperature, to reduce the service life of friction material.

In order to solve the problem above-mentioned, through retrieving, patent document 1: Chinese patent CN201320176343.4 discloses one Kind friction block type air disc brake, including ontology, braking brake pad group and clutch friction block group；Braking brake pad group packet It includes: braking brake pad and braking substrate；Brake substrate by two pieces semi-annular shape board group at, braking substrate circumference on, be distributed with Several equidistant square apertures, braking brake pad are embedded on square aperture, and such structure makes braking and clutch engagement When the heat that generates can pass through more quickly gap and distribute, clutch temp is not easy to increase, to extend the use of friction material Service life, but (in view of the braking effect of lathe, friction block is too thin to be easily snapped off, and is made simultaneously since the thickness of friction block increases The gap for obtaining friction block and piston is too small, does not have the effect of disengaging), for the lathe of high speed, friction block is fast with piston Speed friction, rubbing surface can generate a large amount of heat, and the thickness of friction block is big at this time, and heat is caused not carry out to huyashi-chuuka (cold chinese-style noodles) quickly Transmitting, the temperature for the generation that rubs are up to several hundred degrees Celsius, and energy accumulating causes the surface layer of rubbing surface embrittlement occur existing in rubbing surface As causing the service life of friction block to reduce.

Summary of the invention

1. to solve the problems, such as

The thickness of currently available technology friction block is big, leads to the unsmooth problem that radiates, the purpose of the utility model is to provide A kind of pneumatic dry type high-speed friction clutch-brake of metal forming machinery, is improved by the planform to friction plate, so that The good heat dissipation effect of friction plate eliminates the thermal stress that friction high temperature generates in time, effectively extends the service life of friction plate.

2. technical solution

To solve the above-mentioned problems, technical solution used by the utility model is as follows:

The pneumatic dry type high-speed friction clutch-brake of the metal forming machinery of the utility model, including clutch discs and setting from The second friction plate of the first friction plate and brake disc and setting on the disc brake rotor on disk is closed, wherein the disk of the clutch discs is opened Equipped with several through-holes, the mounting surface of the first friction plate is equipped with the first protrusion cooperated with circular hole, and the first friction plate is alternately fixed In clutch discs；The disk of brake disc offers several through-holes, and the mounting surface of the second friction plate is equipped with cooperate with circular hole second Protrusion, the second friction plate are alternately fixed on the disc brake rotor.

In a kind of possible embodiment of the utility model, the planform phase one of the clutch discs and brake disc It causes, by two pieces semi-annular shape board group at material is that cast iron is evenly distributed with several in clutch discs or brake disc circumference Equidistant through-hole.

In a kind of possible embodiment of the utility model, the structure shape of first friction plate and the second friction plate Shape is consistent, in seperated annular shape, is made of at least two panels, the first friction plate or the second friction plate include matrix, in matrix Several rib teeth are formed on circumference anchor ring.

Gap in a kind of possible embodiment of the utility model, between first friction plate and clutch discs In be filled with heat conductive silica gel；Heat conductive silica gel is filled in gap between second friction plate and brake disc.

In a kind of possible embodiment of the utility model, the through-hole is round hole, described first protrusion or Second protrusion is in a circular table shape, the first protrusion and the second protrusion and round hole cooperation, there are gap between head and round hole, Gap is filled by glue, realizes the fixation of the first friction plate or the second friction plate.

In a kind of possible embodiment of the utility model, the rib tooth thickness h is the 0.4- of described matrix thickness H 0.5 times.

In a kind of possible embodiment of the utility model, the cast iron is Q235 cast iron, Q400 cast iron or Q450 Cast iron.

It further include cylinder, the lateral surface of the cylinder is formed in a kind of possible embodiment of the utility model Radial cord.

It further include ontology, the lateral surface of the ontology is formed in a kind of possible embodiment of the utility model Radial cord.

3. beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) the pneumatic dry type high-speed friction clutch-brake of the metal forming machinery of the utility model, by using friction plate Mode, thickness are suitable for that amount of heat a part that rubbing surface generates is transferred in clutch discs either brake disc by matrix, separately A part is transferred in clutch discs either brake disc by protrusion, so that the good heat dissipation effect of friction plate, timely eliminates and rub The thermal stress that high temperature generates is wiped, the service life of friction plate is effectively extended；

(2) the pneumatic dry type high-speed friction clutch-brake of the metal forming machinery of the utility model, rib tooth thickness h are that matrix is thick 0.4-0.5 times for spending H, so that the thickness of rib tooth, than relatively thin, this part does not work in friction, the heat that matrix friction generates It is timely transmitted to rib tooth, rib tooth more quickly externally can distribute heat, accelerate the heat sinking function of friction plate；

(3) the pneumatic dry type high-speed friction clutch-brake of the metal forming machinery of the utility model, clutch discs and brake disc are equal It is manufactured using cast iron, cast iron not only has good heat transmission function, but also has good toughness, and impact resistance is good, guarantees The service life of clutch meets the requirements；

(4) the pneumatic dry type high-speed friction clutch-brake of the metal forming machinery of the utility model, heat conductive silica gel have fine Heating conduction, the heat of friction plate is timely transmitted to clutch discs or brake disc, enhances the effect of heat dissipation, while heat conductive silica gel It can play the role of sealing, prevent powder from entering gap, to obstruct the heat transmitting between friction plate and clutch discs or brake disc；

(5) metal forming machinery of the utility model is formed with pneumatic dry type high-speed friction clutch-brake, the lateral surface of cylinder There is radial cord, the lateral surface of ontology is formed with radial cord, is formed with several gaps between cord, and cold air can be with It is inhaled into, the convection current of enhancing friction plate and air plays good heat spreading function to realize the heat exchange of air.

Detailed description of the invention

The technical solution of the utility model is described in further detail below with reference to drawings and examples, still It should be known that these attached drawings are designed for task of explanation, therefore not as the restriction of the scope of the utility model.In addition, Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale It draws.

Fig. 1 is the structural schematic diagram of the pneumatic dry type high-speed friction clutch-brake of the utility model metal forming machinery；

Fig. 2 is the Structure explosion diagram of the pneumatic dry type high-speed friction clutch-brake of the utility model metal forming machinery；

Fig. 3 is first friction plate and clutch of the utility model metal forming machinery with pneumatic dry type high-speed friction clutch-brake The scheme of installation of disk；

Fig. 4 is first friction plate and clutch of the utility model metal forming machinery with pneumatic dry type high-speed friction clutch-brake The seperated schematic diagram of disk；

Fig. 5 is the second friction plate and the braking of the pneumatic dry type high-speed friction clutch-brake of the utility model metal forming machinery The seperated schematic diagram of disk.

Description of symbols in figure:

1, cylinder；2, piston；3, ontology；4, flaring pin；5, spring(-supported) mount；6, spring；7, exterior seal ring；8, inner seal ring； 9, the first friction plate；91, the first protrusion；10, clutch discs；11, on-of pin；12, clutch otic placode；13, clutch oscillating bearing；14, Banking pin；15, otic placode is braked；16, oscillating bearing is braked；17, the second friction plate；171, the second protrusion；18, brake disc.

Specific embodiment

Hereafter to the detailed description of the exemplary embodiment of the utility model with reference to attached drawing, which forms the one of description Part has been shown as example the enforceable exemplary embodiment of the utility model in the figure.Although these exemplary realities Example is applied to be described in sufficient detail so that those skilled in the art can implement the utility model, it is to be understood that it can be realized His embodiment and can various changes can be made to the utility model in the case where not departing from the spirit and scope of the utility model.Hereafter Required the scope of the utility model is not limited to the more detailed description of the embodiments of the present invention, and only The description of the characteristics of in order to be illustrated and not limit to the utility model and feature, to propose to execute the utility model Best mode, and it is sufficient to make those skilled in the art that can implement the utility model.Therefore, the scope of the utility model only by Appended claims limit.

Hereafter the detailed description of the utility model and example embodiment are more fully understood in combination with attached drawing, wherein this reality It is identified with novel element and feature by appended drawing reference.

Embodiment 1

Please refer to Fig. 1 to Fig. 5, the metal forming machinery pneumatic dry type high-speed friction clutch-brake, including gas of the present embodiment Cylinder 1, ontology 3, clutch discs 10 and the first friction plate 9 and brake disc 18 that are arranged in clutch discs 10 and setting are in brake disc 18 The second friction plate 17, wherein the disk of the clutch discs 10 offers several through-holes, the mounting surface of the first friction plate 9 be equipped with First protrusion 91 of circular hole cooperation, the first friction plate 9 are alternately fixed in clutch discs 10；If the disk of brake disc 18 offers Dry through-hole, the mounting surface of the second friction plate 17 are equipped with the second protrusion 171 cooperated with circular hole, and the second friction plate 17 is alternately fixed In brake disc 18.What needs to be explained here is that the two sides setting in the two sides of clutch discs 10 either brake disc 18 rubs Pad, the friction plate of two sides are fixed on interlacedly in clutch discs 10 or brake disc 18, and alternately angle is 10-15 °.

In use, gas source is entered by the air inlet of ontology 3, exterior seal ring 7 and inner seal ring 8 are sealed piston, living Plug 2, which is under pressure after gas, pushes clutch discs 10 to move axially, while the spring(-supported) mount 5 on ontology 3 is equipped with 18 springs 6, gram The spring force of spring 6 is taken, the first friction plate piece 9 in clutch discs 10 is in contact with the attrition surface of piston 2, ontology 3, thus lathe Flywheel drive ontology 3 rotate, form engagement movement；After breaking gas source, piston 2 is pushed brake disc by after 6 elastic force of spring 18 move axially, while clutch discs 10 and ontology 3 separate, and the second friction plate 17 in brake disc 18 is the same as piston 2, cylinder 1 Attrition surface is in contact, and forms separation and brake movement, and flaring pin 4 is oriented to piston.

In view of the first friction plate 9 and the second friction plate 17 be in circumferencial direction stress, therefore can by protrusion with from Disk 10 or brake disc 18 are closed to limit, while protrusion can engage frictional force with clutch discs 10 or the formation of brake disc 18, pacify Dress is than stronger.

Clutch used at present needs to control two sides friction plate and is no more than 1.5mm at a distance from piston 2, although gap can To distribute a part of heat, but gap is smaller, and cross-ventilation simultaneously has some setbacks, and furthermore heat transfer is opposite and for heat radiation, The radiating efficiency of heat transfer is some higher, in this regard, the coefficient of heat conduction is lower, friction plate due to the material characteristic of friction plate Thickness is unsuitable blocked up, once it is blocked up, it will cause rubbing surface overheat and quick heat can not be carried out is transferred to huyashi-chuuka (cold chinese-style noodles), inventor is logical A large amount of test and analysis are crossed, by using the mode of friction plate, thickness is suitable for that amount of heat a part that rubbing surface generates is logical It crosses matrix to be transferred in the either brake disc 18 of clutch discs 10, another part is transferred to clutch discs 10 by protrusion and either brakes On disk 18.

Preferably, through-hole is round hole, and the first protrusion 91 or the second protrusion 171 are in a circular table shape, the first protrusion 91 and the Two protrusions 171 cooperate with round hole, and there are gaps between head and round hole, fill gap by glue, realize that first rubs The fixation of pad 9 or the second friction plate 17.

In order to enhance the convection current of friction plate and air, the lateral surface of cylinder 1 is formed with radial cord, ontology 3 it is outer Side is formed with radial cord, and several gaps are formed between cord, and cold air can be inhaled into, to realize the heat of air Exchange, plays good heat spreading function.

Embodiment 2

The structure of the embodiment and embodiment 1 are almost the same, the difference is that, as shown in Figure 2 and Figure 4, clutch discs 10 It is consistent with the planform of brake disc 18, in order to facilitate the installation of, by two pieces semi-annular shape board group at, clutch discs 10 by from Dowel pin 11, clutch otic placode 12 and clutch oscillating bearing 13 and the connecting portion of lathe are fixed, and brake disc 18 passes through banking pin 14, system Dynamic otic placode 15 and braking oscillating bearing 16 and the another connecting portion of lathe are fixed；The material of clutch discs 10 and brake disc 18 is casting Iron, cast iron are Q235 cast iron, Q400 cast iron or Q450 cast iron, and cast iron has good heat transmission function, in addition, cast iron has very well Toughness, impact resistance is good, on 18 circumference of clutch discs 10 or brake disc, be evenly distributed with several equidistant through-holes, this A little through-holes are arranged according to the tendency of involute respectively, such as in this implementation, the clutch discs 10 of a semicircular ring either brake disc On 18, two involute intersections come, and involute can be circle involute or parabola involute, and this structure design changes Existing symmetric design, benefit are that the heat that friction plate generates can by the different parts of clutch discs 10 or brake disc 18 Heat transfer is carried out, the area of heat dissipation is further increased, ensure that the effect of heat dissipation.

Embodiment 3

The structure of the embodiment and embodiment 1 are almost the same, the difference is that, in Fig. 3, further, first rubs Pad 9 and the planform of the second friction plate 17 are consistent, in seperated annular shape, are made of at least two panels, in this embodiment, adopt With six structures, the first friction plate 9 or the second friction plate 17 include matrix, are formed with several ribs on the circumference anchor ring of matrix Tooth, rib toothing outstanding is radial, in addition, rib tooth thickness h is 0.4-0.5 times of matrix thickness H, preferably selection is h =0.4H, so that the thickness of rib tooth, than relatively thin, this part does not work in friction, but the heat that matrix friction generates is timely It is transferred to rib tooth, rib tooth more quickly externally can distribute heat, accelerate the heat sinking function of friction plate.

Embodiment 4

The structure of the embodiment and embodiment 1 are almost the same, the difference is that, although the first friction plate 9 and second rubs Both pad 17 fits closely together with conjoint disk and brake disc 18, and the powder generated during friction can enter Gap in, for this purpose, being filled with heat conductive silica gel in gap between the first friction plate 9 and clutch discs 10；In the second friction plate Heat conductive silica gel is filled in gap between 17 and brake disc 18.These heat conductive silica gels have good heating conduction, will rub The heat of piece is timely transmitted to clutch discs 10 or brake disc 18, enhances the effect of heat dissipation, while heat conductive silica gel can play sealing Effect, prevent powder from entering gap, thus obstruct between friction plate and clutch discs 10 or brake disc 18 heat transmitting.

Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (9)

1. a kind of pneumatic dry type high-speed friction clutch-brake of metal forming machinery, including clutch discs (10) and setting are in clutch discs (10) the second friction plate (17) of the first friction plate (9) and brake disc (18) and setting on brake disc (18) on, feature It is, wherein the disk of the clutch discs (10) offers several through-holes, the mounting surface of the first friction plate (9) is equipped with matches with circular hole First raised (91) closed, the first friction plate (9) are alternately fixed on clutch discs (10)；The disk of brake disc (18) offers Several through-holes, the mounting surface of the second friction plate (17) are equipped with second raised (171) cooperated with circular hole, and the second friction plate (17) is handed over It is fixed on brake disc (18) wrongly.

2. the pneumatic dry type high-speed friction clutch-brake of metal forming machinery according to claim 1, which is characterized in that described Clutch discs (10) and brake disc (18) planform it is consistent, at, material be cast iron by two pieces semi-annular shape board group, In clutch discs (10) or brake disc (18) circumference, it is evenly distributed with several equidistant through-holes.

3. the pneumatic dry type high-speed friction clutch-brake of metal forming machinery according to claim 2, which is characterized in that described The first friction plate (9) and the second friction plate (17) planform it is consistent, in seperated circular, be made of at least two panels, First friction plate (9) or the second friction plate (17) include matrix, and several rib teeth are formed on the circumference anchor ring of matrix.

4. metal forming machinery according to any one of claims 1 to 3 pneumatic dry type high-speed friction clutch-brake, feature It is, heat conductive silica gel is filled in the gap between first friction plate (9) and clutch discs (10)；Described second Heat conductive silica gel is filled in gap between friction plate (17) and brake disc (18).

5. the pneumatic dry type high-speed friction clutch-brake of metal forming machinery according to claim 4, which is characterized in that described Through-hole be round hole, described first raised (91) or second raised (171) are in a circular table shape, first raised (91) and second Raised (171) and round hole cooperate, and there are gaps between head and round hole, fill gap by glue, realize that first rubs The fixation of pad (9) or the second friction plate (17).

6. the pneumatic dry type high-speed friction clutch-brake of metal forming machinery according to claim 3, which is characterized in that described Rib tooth thickness h be 0.4-0.5 times of described matrix thickness H.

7. the pneumatic dry type high-speed friction clutch-brake of metal forming machinery according to claim 2, which is characterized in that described Cast iron be Q235 cast iron, Q400 cast iron or Q450 cast iron.

8. metal forming machinery according to any one of claims 1 to 3 pneumatic dry type high-speed friction clutch-brake, feature It is, further includes cylinder (1), the lateral surface of the cylinder (1) is formed with radial cord.

9. metal forming machinery according to any one of claims 1 to 3 pneumatic dry type high-speed friction clutch-brake, feature It is, further includes ontology (3), the lateral surface of the ontology (3) is formed with radial cord.