Tongs-type brake for vehicle

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly, to rolling stock braking equipment. Proposed device comprises brake shoe to apply friction force by sliding in contact with disc, main case of tongs secured to vehicle and actuator to press brake shoe to disc. Said actuator comprises resilient film secured to tongs main case, drive pressure chamber composed by resilient film to receive fluid, valve feeding said fluid into said chamber and piston arranged between resilient film and brake shoe. Fluid is fed into drive pressure chamber to expand said film towards brake shoe so that piston drives the latter to sliding contact with disc. Said valve feed fluid into drive pressure chamber at brake operation and confines fluid discharge therefrom at brake release.

EFFECT: ruled out abrasion of brake shoe at invariable costs and weight.

4 cl, 5 dwg

 

Area of technology

[0001] the Invention relates to tick the brake device for a vehicle, and is attached friction force to the disc rotating together with a wheel.

The level of technology

[0002] Hydraulic braking device is applied as a braking device, used in railway vehicle, etc. the Hydraulic brake device disclosed in the application of Japan JP 08-226469A and JP 08-226471A contain pneumatico-hydraulic Converter, arranged to convert the air pressure formed by the air originating from the source of air pressure, hydraulic pressure, and actuate the brake hydraulic pressure supplied from pneumatico-hydraulic Converter through the hydraulic pipeline.

[0003] the Weight and cost of the hydraulic brake device increases due to the presence of pneumatico-hydraulic Converter and hydraulic tubing. Thus, it is desirable to equip a railway vehicle pneumatic brake, is arranged to provide actuation of the air pressure without the use of hydraulic pressure.

[0004] In the application of Japan JP 2009-162245 disclosed A pneumatic braking device for a rail transp�comfortable means, resulting in the actuation of the brake pads under the pressure of the air supplied to the device through the aperture.

Disclosure of the invention

[0005] In a conventional pneumatic finger brake device brake pad is provided in sliding contact with the disk by means of a flow of air to the diaphragm and presses on the piston by the air pressure in the brake reaction. When the brake is released the air is released from the aperture to the decrease in the air pressure and moves the piston back bias force of the spring return.

[0006] Since the pneumatic finger braking device lowers air pressure applied to the diaphragm when the brake is released, the piston is supported only by the supporting portion surrounding the spring and the piston. In this case, the difficulty is that the piston in tick-borne braking device vibrates due to vibrations generated during the movement of the vehicle, and thus, perhaps, there is resistance.

[0007] To resolve this problem, it is also possible to change the control system by air pressure so that a slight pressure of air was maintained in the diaphragm and releasing the brake. However, the problem here is that this change leads to increase in cost and weight.

[0008] the Invention in�made with these concerns in mind, and its task is to perform a tick of a braking device for a vehicle prevents vibration induced resistance without increasing the cost and weight.

[0009] According to one feature of the invention proposed tick braking device for a vehicle made with the possibility of application of frictional force to the disc rotating together with a wheel. Tick the braking device comprises a brake Shoe engaged in the application of friction by sliding in contact with the disc; the main body of mites attached to the vehicle; and actuating the device, which enables the pressing of the brake pads against the disc; wherein the actuator includes an elastic film attached to the main body mites, formed by an elastic film camera driving pressure, in which the flow of the fluid medium, a valve for introducing the fluid into the chamber gauge pressure, and a piston disposed between the elastic film and the brake Shoe; wherein when the actuation of the brake the flow of the fluid medium into the chamber of the drive pressure and the elastic extension of the film toward the brake Shoe, whereby the piston causes the brake Shoe in sliding contact with the disc; when the brake is released occurs, stopping delivery of the fluid into the chamber of the drive pressure and the weakening of the elastic film, whereby Porsche�ü moves the brake pad from the disc; and valve introduces fluid into the chamber of the drive pressure by actuation of a brake, limiting the release of fluid from the chamber gauge pressure when the brake is released.

[0010] an embodiment and advantages of the invention are described in detail below with reference to the accompanying drawings.

Brief description of the drawings

[0011] Fig.1 shows the side view of the tongs of a braking device according to the embodiment of the invention.

Fig.2 shows a section tick the braking device according to the embodiment of the invention.

Fig.3 shows a sectional view of the residual pressure valve according to the embodiment of the invention.

Fig.4 shows a sectional view of the residual pressure valve according to the embodiment of the invention, upon actuation of the brake.

Fig.5 shows a sectional view of the residual pressure valve according to the embodiment of the invention, when the brake is released.

The implementation of the invention

[0012] Fig.1 is a side view of tick braking device 1 according to the embodiment implementation of the present invention, and Fig.2 is a sectional view along the line II-II of Fig.1. Configuration tick the brake device 1 is described by a set perpendicular to each other axes X, Y and Z, and the X axis is stretched in a lateral horizontal direction, the Y-axis is stretched in a vertical direction�attachment, and the Z-axis is stretched in the horizontal direction "forward-backward". Fig.2 the geometrical axis of the wheel 5 is designated as N.

[0013] Tick the braking device 1 attached to a rail vehicle, slows the rotation of the wheel 5 through 6 disc wheel 5 between the pair of brake pads 7.

[0014] the Main body 10 ticks placed on the supporting frame 20 attached to unaired the body of a railway vehicle is movable, i.e., with the possibility of sliding in the direction of the axis X by means of the upper and lower sliding pins 31, 32.

[0015] the Main body 10 ticks contains a pair of levers 12 ticks, elongated to cover the disk 6 of the wheel 5, and the crosspiece 13, which connects the left and right levers 12 ticks.

[0016] the Adjusting device 41 is attached to each of upper and lower end parts of the right arm 12 ticks by anchor bolts 42. Upper and lower adjusting devices 41 contain anchor pin 43 is elongated in the direction of the axis X. the Terminal part of the brake pads 7 and support plate 8 are respectively supported by the anchor pins 43.

[0017] the Brake pad 7 has a covering 9 as the parts directly perceiving the force of friction and sliding in contact with the disk 6, and is made of metal plate 19 �La of the attachment of the lining, attached to the back of the pads 9.

[0018] the Brake pad 7 is supported by the plate 8 of the support by means of anchor pins 43. Brake pad 7 is supported to be movable back and forth relative to the disc 6 by the cooperation of the upper and lower end parts of the plate 8 support with relevant anchor pins 43, and the reaction force of a brake supported by the cooperation of the upper and lower end parts of the plate 19 for attachment of the lining with the respective anchor pins 43.

[0019] the Rubber boot (not shown), is arranged to close the affected portion of the anchor pin 43 fixed on the adjusting device 41 for protection of the adjusting device 41 through the dust cover.

[0020] the Adjusting device 41 contains a return spring 44 for biasing the brake pad 7 in the direction away from the disk 6 through the anchor pin 43 and the fixture 45 to adjust the gap, is arranged to maintain the gap S between the brake Shoe 7 and the disc 6 is essentially constant when the brake is released.

[0021] When the brake is released brake pad 7 is pushed against the disc 6 by means of influence of the bias force of return springs 44, and the gap S between the brake Shoe 7 and the disc 6 is maintained essentially constant by means of impact devices 45 for clearance adjustment.

[0022] the Unaired ticks left lever is integral with a supporting rail. The support rail is made with a groove in the dovetail and plate to attach the pad to the left brake Shoe is inserted in the groove in the dovetail. Brake pad inserted into the support rail, as its upper and lower ends communicate with anchor blocks to hold and attach to the left arm of the pincers.

[0023] the Right lever 12 ticks contains the Executive unit 60, configured to compress the brake pads 7 to the disk 6 through the plate 8 support. The actuator 60 is placed between the respective adjusting devices 41.

[0024] the Air as a fluid medium filed into the chamber 63 of the drive pressure of the actuator 60 from the source of air pressure, mounted in the rail vehicle, and the elastic film 75 puts pressure on the brake pad 7 via the piston 65 by means of air pressure, considered as the pressure of the fluid.

[0025] the actuator 60 includes a wall 12b of the casing, made in the lever 12 ticks, the elastic film 75, mounted on the wall 12b of the casing, the cover 92 is attached to the housing 12b, the camera 63 of the drive pressure disposed between the wall 12b of the casing, the elastic film 75 and the lid 92, and the piston 65, size�confused between the elastic film 75 and the brake Shoe 7. Increase the air pressure is due to air introduced into the chamber 63 of the drive pressure, and the elastic film 75 puts pressure on the brake pad 7 in the direction of the axis X, whereby the brake pad 7 puts pressure on the disc 6.

[0026] As shown in Fig.1, the wall 12b of the casing is in the form of a surface of an elliptical cylinder, passing through the lever 12 ticks. Wall 12b of the casing is made with the possibility of the formation of essentially elliptical cross-section facing the cover plate 9 along a wide range.

[0027] without limitation, the wall 12b of the housing can have a shape with an arcuate cross-section, elongated along the lining 9.

[0028] the Lever 12 ticks contains an annular seat 12A, stretched along the side with open end wall 12b of the casing. Several threaded holes are formed with predetermined intervals on the seat 12A, and the cover 92 is fixed by means of bolts 84 and screwed into the corresponding threaded holes. Plot 76 peripheral edge of the elastic film 75 is placed between the seats 12A and the cover 92.

[0029] Similarly, the housing 12A of the external shape of the lid 92 is made essentially elliptical. A part of the cover 92, forming the chamber 63 of the drive pressure, has a concave trelkovsky form.

[0030] the Elastic film 75 a ful�Nena from an elastic resin material. The elastic film 75 may be formed as membranes when using a composite material of an elastic resinous material and reinforcing material, for example carbon fibers or fibers of Kepler. The elastic film 75 may also be performed using membranes made of thin metal plate, a rubber tube or aperture.

[0031] the Elastic film 75 contains peripheral edge plot 76 placed between the seats 12A and a lid 92, a diaphragm section 77 that performs expansion and contraction along the wall 12b of the casing, and the pressing section 79 facing the brake pad 7.

[0032] the Piston 65 is inserted between the hold-down section 79 of the elastic film 75 and the brake Shoe 7. The piston 65 is in contact with the brake Shoe 7 through hole formed in the plate 8 of the support, for transmitting the displacement of the elastic film 75 to the brake pad 7. The piston 65 attached to the plate 8 of the support by a key 66.

[0033] the Lever 12 ticks contains a section 18 with the inlet. Supporting air pressure pipe 35, connected with a not shown source of air pressure, and the valve 30 residual pressure made with the possibility of entering the air coming from the supporting air pressure duct 35, to the station 18 having an inlet connected with the section 18 with the entrance�th hole. Compressed air from the source of air pressure received from the supporting air pressure duct 35 through a not shown switching valve into the chamber 63 of the drive pressure through the valve 30 residual pressure and the section 18 with the inlet. Switching valve is actuated in response to a command from a controller not shown, and enters the compressed air from the source of air pressure in the chamber 63 of the drive pressure of the vehicle brake or introduces atmospheric pressure into the chamber 63 of the drive pressure when the brake is released.

[0034] we now describe the work of tick braking device 1.

[0035] When triggered, the brake air pressure is increased by the air injected from the section 18 with the inlet into the chamber 63 of the drive pressure, resulting in expansion of the elastic film 75 in the direction of the brake pad 7 and the pressing of the brake pads 7 to the disk 6 by means of the piston 65. This forces the brake pad 7 to exert a friction force to the drive 6 for braking the rotation of the wheel 5.

[0036] When the brake is released is the release of air from the chamber 63 of the drive pressure through the portion 18 with the inlet, and the air pressure falls to a level smaller value of the pressure in the brake reaction, resulting in the weakening of the elastic film 75, the reduction of the racket.�data area 77 and the pressing section 79 and moving the brake pads 7 of the disk 6 of the bias forces of the springs 44 return. At this time of the fixture 45 for clearance adjustment adjust the gap S between the brake Shoe 7 and the disc 6, making him essentially constant.

[0037] Thus, in the tick of the brake device 1 when the brake is released the air from the chamber 63 of the drive pressure goes through the section 18 with the inlet and decreases the air pressure in the chamber 63 of the drive pressure. As you decrease the air pressure there is a reduction of membrane area 77 and the pressing section 79 of the elastic film 75 and the release of the piston 65 of the pressure force. At this time there is movement of the piston 65 from disc 6 of the bias forces of the springs 44 return.

[0038] In a conventional pneumatic brake air pressure in the chamber 63 of the drive pressure is essentially aligned with the atmospheric pressure and the piston 65 is shifted in the direction of releasing the brake bias forces of the springs 44 return.

[0039] At this time is not pressing on the piston 65 from the membrane section 77 and the pressing section 79 of the elastic film 75. Thus, when a tick-borne vibration to the brake device 1, the piston 65 is vibrated and the components of tick-borne components of the braking device 1, including a piston 65 may be subject to abrasion or damage.

[0040] To address this difficulty it is reasonable to add a device to manage Yes�leniem air coming from the source of air pressure of the vehicle when the brake is released. However, the addition of this device requires a radical change of the braking system and increases the cost and weight.

[0041] In accordance with this embodiment of the invention prevented caused by vibration abrasion and breakage tick braking device 1 without significantly increasing the cost and weight characteristic described below configuration.

[0042] In an embodiment of the invention, the valve 30 residual pressure made with the possibility of introducing air supplied from the supporting air pressure duct 35 to the station 18 having an inlet attached to the lever 12 ticks, as shown in Fig.1. In the following configuration, the valve 30 residual pressure restricts the emission of air from the chamber 63 of the drive pressure to hold the air pressure in the chamber 63 of the drive pressure and prevent vibration of the piston 65 in the time period allotted by brake, during which occurs the air supply pipe 35.

[0043] Fig.3 is a cross section showing the valve 30 residual pressure from variant implementation of the invention.

[0044] the Valve 30 residual pressure has an essentially cylindrical outer shape and includes an inlet�Oh the nozzle 110, coupled with supporting the air pressure conduit 35, and a side socket 120 ticks, coupled with the section 18 with the inlet.

[0045] the Valve 30 residual pressure is formed by connecting the housing 100 of the valve, an inlet pipe 110 to the vent hole 110A and the side branch pipe 120 ticks to the vent hole 120A in the axial direction. An inlet 110, and the side socket 120 ticks attached respectively to the housing 100 of the valve by means of a thread engagement.

[0046] the Support element 200 and the gasket 210 is inserted respectively between the inlet 110 and the housing 100 of the valve and between the lateral pipe 120 ticks and the housing 100 of the valve to prevent leakage of airflow.

[0047] the Housing 100 of the valve has a cylindrical outer shape and includes an inside abdominal area. The housing 100 of the valve is made with a partition wall 101, separating in the axial direction of the stripe section in the housing 100 of the valve to the first cavity section 100C and the second cavity section 100d. A cylindrical first cavity section 100C and the second cylindrical cavity section 100d are formed respectively from the inlet 100 and the side branch pipe 120 ticks of the partition wall 101. The first cavity section 100 is opened to vent Torstila. The second cavity section 100d open the air inlet 120A.

[0048] the Second ventilation hole 100A passes through the partition wall 101 in the center. Some vent holes 100b are around second ventilation openings 100A.

[0049] an Inlet 110 to the vent hole 110A has a threaded connection with the housing 100 of the valve. The public part of the first cavity section 100C is sealed by means of the inlet pipe 110, while the first cavity section 100C is connected to the vent hole 110A. In the first abdominal section 100C of the first seat valve 130 is movable in the axial direction. The first saddle valve 130 is shifted to the ventilation hole 120A of the first spring 160.

[0050] the Vent hole 130A passes through the first seat valve 130 in its Central part. The vent hole 130A is connected with the second ventilation hole 100A.

[0051] the First seat valve 130 includes a support element 180 in the part facing to the first ventilation hole 100b. Support element 180 covers the first ventilation opening 100b in the closed first seat 130 of the valve and hold it in contact with the partition wall 101.

[0052] Side socket 120 ticks to the vent hole 120A has a threaded connection with the housing 100 of the valve. Open�Ty part of the second cavity section 100d sealed side pipe 120 ticks and the second cavity section 100d is connected to the vent hole 120A. In the second abdominal section 100d of the second seat valve 140 is movable in the axial direction. The second saddle valve 140 is shifted to the ventilation hole 110A of the second spring 170.

[0053] a Stepped section 140A, the diameter of which is smaller than the outer diameter of the second seat valve 140, is formed on the side vents 120A of the second seat valve 140. Spacer 150 is placed around the stepped section 140A. Spacer 150 is attached to the second abdominal segment 100d in such a way that between the spacer 150 and the inner wall of the housing 100 of the valve formed by the gap. The vent hole 150A passes through the spacer 150. Through the ventilation openings 150A in the spacer 150 or gap between the spacer 150 and the inner wall of the housing 100 of the valve of the first vent hole 100b, made in the partition wall 101, and a ventilation hole 120A communicate in the second abdominal section 100d regardless of the position of the second seat valve 140.

[0054] the Second saddle valve 140 includes a support element 190 at the station, facing the second air inlet 100A. Support element 190 overlaps the second ventilation opening 100b in the closed second seat 140 of the valve and hold it in contact with the separation burn�dcoi 101.

[0055] we now Proceed to the description of the work performed thus the valve 30 residual pressure.

[0056] In Fig.4 is a diagram of a valve 30 residual pressure for one embodiment of the invention, upon actuation of the brake.

[0057] At operation of air brakes from a not shown source of air pressure fed into the chamber 63 of the drive tick-borne pressure of the braking device 1 through the supporting air pressure pipe 35 and the valve 30 residual pressure, shown in Fig.1.

[0058] At this time, the supply of air from the ventilation hole 110A in the vent hole in the valve 120A 30 residual pressure. The first saddle valve 130 retained in contact with the partition wall 101 by means of influence of the bias force of the first spring 160 and the air pressure from the filed of air.

[0059] When the air pressure determined by the air supplied from the second ventilation holes 100A connected to the vent hole 130A exceeds the bias force of the second spring 170, the second seat valve 140 slides in the direction of the air inlet 120A.

[0060] the Air passes from the second ventilation openings 100A through the gaps between the spacer 150 and the inner wall of the housing 100 of the valve, and between the second seat valve 140 and the housing 100 of the valve, and vent about�opening 150A spacers 150 and enters the air inlet 120A. The air emitted from the air outlet port 120A, filed of section 18, with the inlet shown in Fig.1, into the chamber 63 of the drive pressure for action on the piston 65, via which the brake block 7 slides in contact with the disk 6 for braking the wheel 5.

[0061] In Fig.5 is a diagram of a valve 30 residual pressure from the variant of the invention at the beginning of the brake release.

[0062] When the brake is released is the opening of the supporting air pressure duct 35 to atmospheric pressure and discharging air from the chamber 63 of the driving pressure, as described above.

[0063] At this time, the valve 30 residual pressure air passes from the air outlet port 120A to the ventilation hole 110A. The second saddle valve 140 comes into contact with the partition wall 101 under the influence of the bias force of the second spring 170 and the pressure of air passing through. In this state there is a connection between the second abdominal section 100d and the first ventilation hole 100b, and the air passing through the valve 30 residual pressure, passes through the first ventilation hole 100b to exert pressure on the first seat valve 130 in the direction of the ventilation hole 110A.

[0064] In excess of the air pressure determined by the air passing through the first ventilation hole 10b, the bias force of the first spring 160, the first seat valve 130 slides toward the ventilation hole 110A. Thus, air flows from the vents 120A through the gap between the spacer 150 and the inner wall of the housing 100 of the valve through the vent spacers 150A 150, the gap between the second seat valve 140 and the housing 100 of the valve, the first ventilation hole 100b and the vent hole 130A, and is output to the ventilation hole 110A. In this state, the air pressure in the chamber 63 of the drive pressure reduced by the valve 30 residual pressure.

[0065] by lowering the air pressure in the chamber 63 of the drive pressure and the pressure drop of air passing through the first ventilation hole 100b, to a level equal or less than the bias force of the first spring 160, the first seat 130 of the valve slide in the direction of the air inlet 120A under the influence of the bias force of the first spring 160 and comes into contact with the partition wall 101 (see Fig.3). Upon contact of the first seat valve 130 with a partition wall 101 as a result of influence of the bias force of the first spring 160, there is no release of air from the chamber 63 of the drive pressure in the chamber 63 of the drive pressure is maintained constant pressure.

[0066] At this time some air �rootsthe in the chamber 63 of the drive pressure, whereby some of the force applied to the piston 65 in the direction corresponding to the pressing the brake pad 7 air pressure and, simultaneously, the brake pad 7 is shifted in the direction away from the disc 6 of the bias forces of the springs 44 return. In line with this, the plunger 65 force is exerted in the positive and negative direction on the X-axis and therefore is suppressed and the vibration of the piston 65 relative to the lever 12 ticks even with tick-borne vibration in the brake device 1. When the air in the chamber 63 of the drive pressure is not released through the valve 30 residual pressure after releasing the brake, as shown in Fig.3, the air pressure in the chamber 63 is set to a value which is inferior to the value of the bias forces of the springs 44 return that does not cause vibration of the piston 65. At this point, the pressure may be different depending on the configuration of tick braking device 1, but may be set, for example approximately from 0.02 to 0.03 PA.

[0067] As described above, tick the braking device 1 of embodiments of the invention contains the brake pads 7, made with the possibility of application of force of friction by sliding in contact with the disc 6 rotating together with the wheel 5, the levers 12 ticks, supported on the vehicle, and the actuator 60, made in�the possibility of pressing the brake pads 7 to the disk 6. The actuator 60 includes an elastic film 75, is attached to the lever 12 ticks, the camera 63 of the drive pressure, formed by an elastic film 75 and in which the flow of air during actuation of the brake, the valve 30 residual pressure introducing air into the chamber gauge pressure, and the piston 65 is disposed between the elastic film 75 and the brake Shoe 7. The valve 30 residual pressure enters the air in the chamber 63 of the drive pressure in the brake reaction and limits the release of air from the chamber 63 of the drive pressure when the brake is released.

[0068] Thus, the valve 30 residual pressure can leave a certain amount of air in the chamber 63 of the drive pressure by reducing the release of air from the chamber 63 when the brake is released. This provides the possibility to maintain the broadening of the elastic film 75 to such an extent that the piston 65 does not brake pad 7 in sliding contact with the disk 6, and the plunger 65 is the effect of residual air pressure even after releasing the brake. Thus, it is possible to prevent vibration of the piston 65 in the lever 12 ticks and prevent abrasion and breakage tick braking device 1 due to the vibration.

[0069] the Valve 30 residual pressure contains the first seat valve (first valve body) 130, offset by eg�the relation to the ventilation hole 120A of the first spring 160, and the second seat valve (second valve body) 140, offset in the direction of the air inlet 110A of the second spring 170. The air enters the chamber 63 of the drive pressure at the opening of the second seat valve 140 of the second ventilation holes 100A, air escapes from the chamber 63 of the drive pressure at the opening of the first seat valve 130 of the first ventilation holes 100b, and the release of air from the chamber 63 of the drive pressure is limited at the closing of the first seat valve 130 and the second seat valve 140 of the second ventilation holes 100A and the first ventilation hole 100b.

[0070] Thus, the release of air from the chamber 63 of the drive pressure can be limited only by the configuration of the valve 30 residual pressure without changing the tick of the braking device 1 and other configurations, and the abrasion and breakage of tick braking device 1 due to vibration can be prevented without increasing the cost and weight. The valve 30 residual pressure contains the first seat valve 130 and the second seat valve 140, the offset of the first spring 160 and the second spring 170 in the housing 100 of the valve, and can be made with a diameter essentially equal to the diameter of the pipe 35. Thus, the outer shape of the valve 30 residual pressure is not increased and, consequently, the output of air from the chamber 63 of the drive pressure can�t be limited without modifying the existing tick of the braking device 1 and other components.

[0071] In the valve 30, the residual pressure of the first seat valve 130 opened to release air from the chamber 63 of the drive pressure in excess of the pressure of the air provided by the air discharged from the chamber 63 of the drive pressure, the bias force of the first spring 160 when the brake is released. The first saddle valve 130 is closed, preventing the release of air from the chamber 63 of the drive pressure with the air pressure provided by the air discharged from the chamber 63 of the drive pressure equal to the bias force of the first spring 160 or less of this power.

[0072] Thus, the release of air from the chamber 63 of the drive pressure can be limited only by the mechanical movement of the valve 30 residual pressure, and abrasion and breakage tick braking device 1 due to vibration can be prevented without increasing the cost.

[0073] the Valve 30 residual pressure is made with the first ventilation hole 100b, which is closed no matter if it's open the second saddle valve 140 or closed when closed, the first seat valve 130, and the second ventilation hole 100A, which is closed no matter if it's open the first seat valve 130 or closed when closed, the second seat valve 140. When the brake reaction is the opening of the second seat valve 140 against the bias force of the second spring 170 due to a passing train�Denia air through the first vent hole 100b. When the brake is released is the opening of the first seat valve 130 against the bias force of the first spring 160 due to the passage of air through the second vent hole 100A.

[0074] Thus, the release of air from the chamber 63 of the drive pressure can be limited only by the mechanical movement of the valve 30 residual pressure. The first and second ventilation openings 100A, 100b have a structure in the form of a nozzle and can increase the air pressure due to air passing through the nozzle containing portion, and to open and close the first seat valve 130 and the second seat valve 140. This can prevent the abrasion and breakage of tick braking device 1 due to vibrations without increasing the cost.

[0075] Since the valve 30 residual pressure made with the possibility of easy removal from the lever 12 ticks, you can use the device when removing the valve 30 residual pressure in the absence of the need to maintain air pressure within the chamber 63 of the drive pressure when the brake is released.

[0076] Although the above example of the invention has been described as an example pneumatic finger brake device 1, the vibration of the hydraulic piston can be prevented by the use of residual pressure valve according to e�St variant of the invention, the hydraulic tick the brake device and to maintain internal pressure in the hydraulic chamber of the piston.

[0077] Although the embodiment of the invention has been described above, the aforementioned embodiment is merely indicates some application examples of the invention and is not intended to limit the technical scope of the invention defined by the configuration of the above-mentioned variants of the implementation.

[0078] the Present application requires the priority based on application No. 2011-94812 patent Japan, registered in the Japan Patent office on April 21, 2011, all of the content of this application is included here by reference.

[0079] an Exceptional nature or characteristics of the embodiments of the invention are formulated as follows.

1. Tick the braking device for a vehicle, and is attached friction force to the disc rotating together with a wheel that contains
brake pad carrying out the application of friction by sliding in contact with the disk,
the main body of mites attached to the vehicle, and
execution unit performing the compression of the brake pads to the disk and contains
the elastic film is attached to the main body mites,
formed by an elastic film camera driving pressure, which �proishodit flow of the fluid
the valve performs input of fluid into the chamber gauge pressure, and
the piston is placed between the elastic film and brake Shoe, and
when activated the brakes the flow of the fluid medium into the chamber of the drive pressure and the elastic extension of the film toward the brake Shoe, whereby the piston causes the brake Shoe in sliding contact with the disk,
when the brake is released occurs, stopping delivery of the fluid into the chamber of the drive pressure and the weakening of the elastic film, whereby the piston pushes the brake pad against the disk, and
the valve provides input fluid into the chamber gauge pressure at the brake reaction and restriction of release of fluid from the chamber gauge pressure when the brake is released.

2. Tick the braking device for a vehicle according to claim 1, in which
the valve contains within itself the abdominal area and formed with a dividing partition separating the abdominal area on the first cavity portion and a second cavity section in the axial direction, and containing the first ventilation hole and the second ventilation hole, and contains
the first valve body closes the first vent hole, coming into contact with the dividing septum formed in the first cavity area,
the second valve body closing the second vent opening, coming into contact with the dividing septum formed in the second cavity area, and
flow of a fluid medium into the chamber of the driving pressure through the second air vent is open when the second valve body,
the release of fluid from the chamber gauge pressure, via the first ventilation hole is open when the first valve body, and
the release of fluid from the chamber of the drive pressure is limited at the closed first and second valve housings.

3. Tick the braking device for a vehicle according to claim 2, in which
the first valve body is displaced to the partition wall by a spring, and
the valve is made so that when the brake is released
the first valve body is opened and fluid is released from chamber gauge pressure in excess of the pressure of the fluid dispensed from the chamber gauge pressure, the bias force of the spring, and
the first valve body is closed, and the release of fluid from the chamber gauge pressure is stopped when the pressure of the fluid dispensed from the chamber gauge pressure equal to the spring force of the bias or less of this power.

4. Tick the braking device for a vehicle according to claim 3, in which
the valve thus constructed, Thu� when the brake is released, the first valve body is opened by counteracting bias force due to the pressure of the fluid, passing through the first ventilation hole.



 

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7 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed mechanism comprises support surrounding brake disc and brake linings abutting on brake disc on both sides. One of said linings on clap side can be actuated by clamp rotary lever. Disc brake support flange accommodates brake cylinder secured thereto to receive compressed air. Said cylinder can act on said rotary lever by cylinder rod and has return spring. Cylinder rod is displaced by spring back into free state to abut on the flange or on bottom resting on cover flange. Said flange makes the return spring support. Cover is made of thin-wall sheet of stable-shape metal foil. Concentric hole is made in said cover. In compliance with first version, brake mechanism cylinder has said cover makes form the preassembled assy without cylinder rod. In compliance with second version, brake mechanism cylinder return spring abut on thin-wall cover abuts on brake mechanism disc flange to made its support.

EFFECT: longer life.

17 cl, 5 dwg

Crank press brake // 2504474

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used in crank press brakes. Said brakes serve to absorb energy of press clutch drive part after clutch is disengaged and to retain actuator jointly with drive part in position that corresponds to press slider to position. Brake comprises bearing, drive and pressure plates, pressure plate drive and cover. Drive is composed of modules. Every module comprises slider and end motor with inner and outer ring-like stators. Stators are mounted at press bed to get in magnetic contact with disc rotor. Rotor shaft is engaged via planetary reduction fear and torque converter with slider.

EFFECT: simplified design, accelerated operation.

2 dwg

Clamp brake // 2492373

FIELD: transport.

SUBSTANCE: clamp brake is mounted at vehicle comprising body and wheel with brake surface to braking force to be applied to said wheel. Clamp brake comprises brake shoe, brake shoe holder, main clamping body, two support pins and drive. Support pins hold said holder at main clamp body to allow its displacement toward brake surface and therefrom. Drive allows pressing brake shoe to wheel brake surface by aforesaid holder. Said drive comprises diaphragm, drive pressure chamber, piston and connected gear. The latter comprises screws and screw bores made in said piston to receive screws to be screwed in through holder to attach the piston thereto.

EFFECT: efficient conversion of fluid pressure into brake shoe pressing force, stable braking force.

10 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: annular disc brake includes a rotating disc and at least one disc shoe installed on each side of the rotating disc. Brake shoe or shoes on one side are connected to an axially guided load-carrying element of the brake shoe. The brake has a force transfer mechanism creating enhancement of increase in force between the axially driven element and load-carrying element. The method for increasing gripping force of brake shoe in annular disc brake consists in the fact that the first force is generated synchronously with the brake drive; at that, the first force has the direction that is parallel to rotation axis of the rotating disc. Also, rotating torque is generated using the first force; at that, rotating torque has the rotation centre that coincides with rotation axis of the rotating disc. Besides, the second force is generated using rotating torque; at that, the second force has the direction that is essentially identical to the direction of the first force and is higher than the first force. The second force is used for gripping of brake shoes on opposite sides of the rotating disc.

EFFECT: increasing brake compactness and providing uniform distribution of braking force in a circumferential direction of the rotating disc.

20 cl, 12 dwg

FIELD: mechanical engineering.

SUBSTANCE: modular brake mechanism mounted in the support provided with the port at least in its front side comprises braking lever, front rack that is connected with the braking lever when the brake operates, and at least one stop plate which is mounted on the transverse rack and overlaps the plate for closing the port in the front side of the support. The transverse rack moves by the lever in the plane virtually perpendicular to the plane of the brake disk. The brake mechanism is modular and comprises two or more units. At least one of the units has at least two members. Each of the units can be dismounted through the port in the support.

EFFECT: facilitated dismounting of out-worn units.

6 cl, 7 dwg

FIELD: mechanical engineering; disk brakes.

SUBSTANCE: proposed disk brake contains caliper enclosing brake disk and provided with cavity for mounting brake mechanism. Brake mechanism has support bracket installed inside in port in caliper wall furthest from brake disk. Brake mechanism is provided with adjuster, adjusting shaft and shaft for restoring initial position. Device is used to transmit motion between shafts to adjust and restore initial position. Adjuster is set into operation by pin of lever arranged on brake mechanism lever and is installed in support bracket at assembling.

EFFECT: improved synchronization of adjusting motion between two thrust units of brake mechanism, provision of compactness, facilitated servicing of brake mechanism.

10 cl, 8 dwg

Disc brake // 2551833

FIELD: transport.

SUBSTANCE: invention relates to machine building, particularly, to automotive brakes. Air-operated disc brake comprises rest, female part of said brake. Disc brake rest flange supports brake cylinder locked thereat and driven by compressed air, said cylinder being provided with internal membrane and cylinder rod connected therewith. Brake cylinder is furnished with functional element at overlap section with at least one recess. Recess/recesses extend inside the brake cylinder. Recess/recesses are configured to make said membrane displace freely or almost freely in direction of effects. Recess/recesses are made at the casing side surface nearby disc brake rest flange of brake cylinder body. At least one recess is made at rounded edge section between body element bottom and casing cylinder-shape side surface of said element.

EFFECT: simplified access to functional elements of disc brake rest.

8 cl, 4 dwg

Brake drive // 2550786

FIELD: transport.

SUBSTANCE: brake drive comprises case to house revolving screw coupled via reduction gear with motor (11). Nut with rigidly secured sliders is fitted on said screw. Stack of springs is fitted between the ends of nut ends and case ends. Two brake shoes are arranged in said case. One of brake shoes is fixed in said case while opposite shoe is fitted therein to slide to contact with said sliders. Case slides in guides with axes parallel with moving brake shoe direction. This motor is a self-controlled inverted-bed or a step motor. Case can incorporate plungers in amount required for creation of the force larger than maximum force of said spring stack. Plunger axes are parallel with nut axis. Motor shaft output extension can be provided with journal for wrench fit.

EFFECT: braking without extra brake shoe systems at emergent manual braking.

3 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: inventions group relates to machine building, namely to the hydraulic brake systems. The hydraulic brake system contains pressing element, hydraulic oil filled actuator, and remote devices for air gap adjustment between the press element and brake work surface. The remote devices contain the hydraulic accumulator to store the specified hydraulic oil volume at minimum pressure. The brake system actuator has the brake cylinder in which the brake piston passes, that is freely installed longitudinally. The brake piston and brake cylinder limit the brake return chamber. For the press element removal from the brake work surface the return brake chamber of the brake system actuator is made with possibility of connection with the hydraulic accumulator. The hydraulic oil volume of the hydraulic accumulator determines distance between the press element and brake work surface in lowered position of the brake system such that to exclude the mechanical stop or lock devices. Method of the air gap adjustment means that for the press element removal from the brake work surface limited by the brake piston and brake cylinder the return brake chamber of the brake system actuator is connected with the hydraulic accumulator such that mentioned specified hydraulic oil volume is injected to the brake return chamber, at that the freely installed brake piston is moved, at that this movement is limited by the hydraulic oil volume only, thus distance between the press element and brake work surface in the lowered position of the brake system is determined.

EFFECT: simplified design and improved reliability of the system.

7 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building, particularly, to automotive brakes. Proposed device comprises connections, one connected with mechanism to develop stretching or contracting loads another one can be rigidly connected to the frame, working cylinder and piston set. The latter is fitted, partially and sliding, in working cylinder to make therewith a hydraulic chamber filled with hydraulic fluid. Said connections are connected to working cylinder or piston set by connectors. Said connectors comprises hollow sleeves each making a grip. Said grips under stretching load engage with thrust shoulders at piston set of working cylinder to make stretching connectors. Brake comprises moving connection link to press brake pad against braking surface and is filled with hydraulic fluid, brake actuator connected with connection link to develop pressure force fed via connection link to brake pad. At braking, pressure development device develops in hydraulic chamber connected with said actuator via hydraulic lined the hydraulic pressure.

EFFECT: simplified design.

8 cl, 5 dwg

FIELD: transport.

SUBSTANCE: invention relates to transport machine building, particularly, to disc brakes. The disk braking mechanism includes support, clamping device, two adjusting screws, regulating device and cylindrical gear wheel segment located on brake lever and passing in direction of its turning. The clamping device has brake lever and is located in support of disk braking mechanism. Two adjusting screws are located in parallel and independently from each other with possibility to be moved in axial direction by means of clamping device. The regulating device is positioned in support of disk braking mechanism, made capable to be actuated by brake lever and to compensate for change of air gap between brake pad and brake disk which change is associated with wear. This compensation is performed by means of adjusting screw axial displacement. To implement regulation the cylindrical gear wheel segment is engaged with gear with end teeth which gear is in working connection with adjusting screw. The gear is nonturnably fixed on driving screw installed with possibility of rotation at the centre between adjusting screws which driving screw provides possibility to actuate adjusting screw via reducing gear. The cylindrical gear wheel segment is monolithically connected with brake lever made as moulded piece.

EFFECT: improved technical characteristics of device and simplification of its manufacturing.

3 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to brake systems. Disc brake comprises floating clamp, brake piston driven by cartridge converting motion, cartridge rear part resting on the bottom of seat made in said clamp, and includes control shaft extending through seat bottom. Cartridge front part thrusts against brake piston. Cartridge incorporates the disc to interact with control shaft disc via balls arranged the disc to roll in paths made as inclined surfaces for conversion of rotation of one disc relative to another one into translation of pusher. Cartridge is locked by yoke resiliently pressed against sear wall. Said pusher has lengthwise ledges extending to enter said lengthwise grooves made in seat walls to retain said pusher and to allow its translation.

EFFECT: simplified production of brake clamp.

6 cl, 6 dwg

FIELD: transport.

SUBSTANCE: invention relates to the automotive industry, particularly, to disk brakes of vehicles. The disc brake comprises a floating clamp, a brake piston driven by a motion converter cartridge, the rear part of the latter being thrust against the bottom of a seat made in the said clamp for the cartridge and including a control shaft extending through the seat bottom. The front part of the cartridge rests against the brake piston. The named part of the cartridge includes a pusher fitted with a disk interacting with a control shaft disk by means of balls located between disks with a possibility of rolling along the paths designed as inclined surfaces for the conversion of the rotary motion of one disk with reference to another into the translational movement of the pusher. The cartridge is locked in its seat by a yoke resiliently pressed against the seat wall. The pusher disk has longitudinal grooves interacting with lock cores and thus holding the pusher from rollover with ensuring freedom of its translational movement.

EFFECT: simplification of fabrication of the brake bracket due to minimising of the quantity of parts of the movement conversion cartridge is achieved.

7 cl, 12 dwg

FIELD: transport.

SUBSTANCE: disc brake comprises floating clamp, brake piston driven by motion converter cartridge rear part of the latter being thrust against the bottom of seat made in said clamp for cartridge and including control shaft extending through seat bottom. Cartridge is locked by yoke resiliently pressed against sear wall. Cartridge pusher has lengthwise ledges composed of rods fitted in seat lengthwise slots. Anti-strain device is arranged between pusher rods and clamp seat slots. This device comprises ring with lugs distributed in circle in compliance with arrangement of rods. Said lugs have cylindrical tabs bent as said lengthwise ledges to lock the pusher and to allow its translation.

EFFECT: simplified production of brake clamp.

8 cl, 10 dwg

FIELD: machine building.

SUBSTANCE: invention relates to machine building. The connector assembly used for force transfer includes the housing, which contains a part of the rotating disk. The housing is fitted with plate element, coolant duct, and inlet and outlet holes. The plate element with the force transfer surface contacts through the circular zone of the lateral surface with the rotating disk for deceleration of relative rotation of the housing and disk. The coolant duct is partially formed by the side of the plate element counter to the force transfer surface. Through the inlet hole water enters the coolant duct, and through the outlet hole water leaves the coolant duct. The internal lateral surface of the plate element counter to the force transfer surface, comprises multiple hemispherical recesses, intended for forming of turbulence and a secondary turbulent water flow in the coolant duct for improvement of heat exchange between the plate element of the housing and water, flowing through the coolant duct.

EFFECT: device cooling improvement is achieved at the expense of increase of heat transfer coefficient.

11 cl, 8 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway transport, specifically to braking systems of rail vehicles. The parking brake includes braking cylinder with piston actuated by working fluid, as well as with parking brake having control lever installed with rotation possibility which rotation is transferred to shaft. The piston actuates piston rod of wheel brake cylinder which rod is coaxial with braking cylinder axis. The shaft is installed with possibility to turn perpendicular to braking cylinder axis via shaft bearing in body. Control lever is intended to initiate shaft rotating movement which is transformed into parallel to braking cylinder axis linear movement of support roller installed with possibility to rotate by means of support roller bearing on parallel to shaft axis of rotation by means of cam. The cam has working surface interacting with radial outer surface of support roller during clamping or releasing travel of parking brake. Cam working surface is made as portion of cylinder surface circumference the central axis of which performs circular trajectory of movement around shaft axis during clamping or releasing travel of parking brake.

EFFECT: higher efficiency factor of device.

13 cl, 6 dwg

FIELD: transport.

SUBSTANCE: brake unit consists of the body with suspension fitted on cushioned frame of the vehicle, gripper mechanism, including levers, brake cylinder, shoes, automatic regulator of clearance between linings and disc with ratchet mechanism and drive of said automatic regulator. Said automatic regulator of clearance is arranged in the unit body between fulcrums of levers. Brake cylinder is arranged between the levers on ends opposite locations of shoes. Said automatic regulator of clearance is driven by brake cylinder via lever drive provided with compensation spring. Device for unlocking of ratchet mechanism of said automatic regulator of clearance is composed of a spring-loaded rod.

EFFECT: higher efficiency and reliability, compact design.

6 dwg

FIELD: transport.

SUBSTANCE: invention relates to transport machine building, namely, to disk braking devices for rail vehicles. The disk braking device includes disk to be mounted on chassis and brake system to provide braking force. The brake system includes braking cylinder and brake caliper on which brake pad is installed to interact with braking cylinder. In the path of force transmission from braking cylinder to brake pad, sensor is provided which sensor is designed and installed to record force transmission to braking cylinder. The brake pad is installed on caliper by means of articulated joint.

EFFECT: higher reliability of braking force fixation during actual transmission to brake disk.

7 cl, 5 dwg

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