SU1242663A1 - Coolant device built in brake disc revolving on shaft - Google Patents

Description

The invention relates to mechanical engineering and can be used in devices that require intensive removal of the generated heat, such as disc brakes of railway rolling stock.

The purpose of the invention is to increase the cooling efficiency.

FIG. 1 shows a diagram of a cooling device embedded in the brake disc; cross section; in fig. 2 shows section A-A in FIG. one..

The cooling device contains a sealed body 2 mounted on the shaft 1, integral with the brake disc body and partially filled with heat carrier 3, with friction and heat end faces 4, which interact with the brake pads 5, the evaporation zones 6 and 7, respectively, of condensation, located respectively in the zone of friction and heat generation and in the ribbed peripheral part of the housing 2, as well as the impeller installed in the housing 2 with hollow blades 8 and nozzles 9 in its middle part. Facing 4 friction and heat generation, and in the upper part of each hollow blade 8 of the impeller a feed element is installed, made in the form of a diaphragm liquid pump with valves 10 in the valve box 11 and with a membrane 12 attached to the ribbed part 13 to the ribbed part 4 discs and heat is generated due to the friction of the pads against the walls of the casing 2.

In order to remove heat from the surface 4 of friction and heat generation, the latter is internally irrigated with a stream of sprayed heat carrier 3 from the nozzles 9 from the inside.

For this, during the braking period, the solenoid coils 15 are powered from the power source terminals 16. Ferro10 magnetic rod 14, interacting with solenoids 15, begins to vibrate, making reciprocating movements in the solenoid, and actuates a diaphragm pump with valves 10 and a membrane 12 attached by a hard thrust 13

 to the finned case. In this case, the heat-transfer fluid 3 along hollow blades m 8 of the impeller from the condensation zone 7 through the nozzles 9 enters Et the evaporation zone 6, where it is sprayed along the inner surface 4 of the friction

2Q and heat generation. The sprayed droplets of heat carrier 3, fall on the heated walls 4 in the evaporation zone 6, evaporate, turn into steam, and take heat from the end surface 4 of the friction and heat generation of the brake disc. Then, at a pressure of 25% of the rotating forces of the rotating body 2, the pairs of heat transfer medium 3 are moved into the cavity of the condensation zone 7, where they condense, and the cycle repeats again.

Thus, the invention is provided for 2, and the lower part of each hollow flap works on the principle of spraying the heat carrier 8 of the impeller made in the form of a ferromagnetic rod 14 interacting with a coil of a solenoid 15 attached to the axis 1 of the brake disc, and the ferromagnetic rod 14 is installed reciprocating inside the hole of the solenoid 15 connected to the terminals 16 of the power supply.

The device works as follows.

When the housing 2 mounted on the shaft I of the brake disk rotates, the heat transfer fluid 3 is in the condensation zone 7 and, under the action of centrifugal force, rotates together with the housing 2.

In the process of braking, the brake pads 5 interact with the face sweat. The coolant is supplied by force due to the use of a diaphragm pump in the device, which interacts with a solenoid that performs the function of its drive. In this case, an uninterrupted supply of coolant is ensured.

to the heat dissipating surfaces of the housing,

which increases their cooling efficiency.

In addition, cooling efficiency

also increases due to the fact that

The device's dd is completely sealed, there are no mates of moving and stationary parts, all kinds of stuffing boxes and seals, so there are no leakage paths from the brake disc housing, which increases the reliability of the brake disc during operation.

surfaces 4 of the disc, and heat is generated as a result of the friction of the pads against the walls of the housing 2.

In order to remove heat from the surface 4 of friction and heat generation, the latter is internally irrigated with a stream of sprayed heat carrier 3 from the nozzles 9.

For this, during the braking period, the solenoid coils 15 are powered from the power source terminals 16. The ferromagnetic rod 14, interacting with the solenoids 15, begins to vibrate, making reciprocating movements in the solenoid, and actuates a diaphragm pump with valves 10 and a membrane 12 attached by a rigid thrust 13

to the finned case. In this case, the heat-transfer fluid 3 along hollow blades m 8 of the impeller from the condensation zone 7 through the nozzles 9 enters Et the evaporation zone 6, where it is sprayed along the inner surface 4 of the friction

and heat generation. The sprayed droplets of heat carrier 3, fall on the heated walls 4 in the evaporation zone 6, evaporate, turn into steam, and take heat from the end surface 4 of the friction and heat generation of the brake disc. Then, under the pressure of the centrifugal forces of the rotating body 2, the pairs of heat transfer medium 3 are moved into the cavity of the condensation zone 7, where they condense, and the cycle repeats again.

Thus, the invention provides work on the principle of spraying the coolant working on the principle of spraying the coolant. The coolant is supplied by force due to the use of a diaphragm pump in the device, which interacts with a solenoid that performs the function of its drive. In this case, an uninterrupted supply of coolant is ensured.

to the heat dissipating surfaces of the housing,

which increases their cooling efficiency.

In addition, cooling efficiency

also increases due to the fact that

the device is completely sealed, there are no mates of moving and stationary parts, all kinds of stuffing boxes and seals, so there are no leakage paths from the brake disc housing, which increases the reliability of the brake disc during operation.

figure 1

13

7

Compiled by P. Kolesnikov Tehred I. VeresKorrektor I. Erdeyi

Circulation 880 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

 13035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

FIG. g

Claims (1)

A COOLING LIQUID DEVICE INTEGRATED INTO A BRAKE DISC ROTATING A SHAFT ROTATING TO A SHAFT, containing a sealed hollow housing in the form of a disk with evaporation zones located on both end friction and heat generation surfaces, with a condensation zone located on the periphery of the disk and an impeller mounted on the shaft with hollow blades, with nozzles fixed in the middle part of the blades and facing the friction surfaces and heat generation of the housing, and with located in the condensation zone and valves with double-sided valves, characterized in that, in order to increase cooling efficiency, it is equipped with a solenoid coil fixed to the shaft and feed elements mounted on each impeller blade from the side of the condensation zone, made in the form of membrane liquid pumps with a valve box, the membrane of which connected to the housing by means of traction, the lower part of each impeller blade is made in the form of a rod of ferromagnetic material, mounted with the possibility of reciprocating rooms relative to the central hole of the solenoid coil, and valves with double-sided valves are installed in the valve box. 1242663 A1