Utility model content
The deficiency existed for above-mentioned mine car brake, the purpose of technology of the present utility model is that providing a kind of is placed in, with radiation shell, brake-shoe, the mine car brake that brake drum is outer, be provided with aeration radiation system, this brake has when long, distance braking successor so has preferable braking effect, the function discharged the heat after braking rapidly.
This utility model is achieved through the following technical solutions:
A kind of mine car brake, described mine car brake includes: brake-shoe, friction plate, brake drum, described friction plate is located on brake-shoe, described friction plate and brake-shoe are located at outside brake drum, described brake-shoe, friction plate and brake drum are located at inside radiation shell, and described radiation shell body is provided with air inlet pipe and exhaustor.
Due to said structure, owing to mine car volume is big, space is big, therefore by friction plate and brake-shoe are located at outside brake drum, and described brake-shoe, friction plate are located at inside radiation shell with brake drum, heat-dissipating space on friction plate with brake drum is expanded, make when installing brake-shoe, friction plate more convenient simultaneously, owing to being provided with air inlet pipe and exhaustor on radiation shell, by described air inlet pipe and exhaustor, can quickly, effectively by the heat of generation during braking discharge, ensure the good of braking effect with this.
A kind of mine car brake, described radiation shell is cylindric, is provided with two fixing support columns inside radiation shell, and described radiation shell inwall is provided with two wheel cylinders and two return springs, being provided with fin in the wall of described radiation shell, the material of described radiation shell is copper or aluminum.
Due to said structure, by radiation shell being set to cylindric being easily installed, the fixed bearing post being provided with in radiation shell, it is used for brake-shoe is installed, two wheel cylinders being provided with in radiation shell are for applying brake force to two brake-shoes, make brake-shoe press brake drum and produce frictional force and reach the purpose of braking, and two return springs are to be retracted by two brake-shoes when non-brake, brake-shoe is avoided to contact with brake drum, the fin being provided with in radiation shell, the heat-sinking capability of radiation shell can be increased, radiation shell uses copper material can improve heat-sinking capability, radiation shell uses aluminium not only to have good heat-sinking capability, also there is the feature of light weight.
A kind of mine car brake, the quantity of described brake-shoe is 2, said two brake-shoe in radiation shell centered by be arranged symmetrically with, described brake-shoe one end is fixed on support column, and the other end is connected with wheel cylinder and return spring.
Due to said structure, by two brake-shoes are centrosymmetrically arranged so that when braking, the thrust of brake drum can be balanced by two brake-shoes.
A kind of mine car brake, described air inlet pipe is connected with the compressed air line of mine car, and described air inlet pipe is provided with intake valve and decompressor, and the internal diameter of described air inlet pipe is 5~30mm, the material of described air inlet pipe is rubber or metal material, and described intake valve is provided with electric control gear a.
Due to said structure, air inlet pipe is connected with compressed air line, solve the wind regime problem of cooler very well, the air discharged from compressed air line cleans the most very much, the fricative chip of friction plate with brake drum can also be discharged, the decompressor being provided with, can be by the high pressure air reducing in compressed air line, become the blast of applicable heat extraction, intake valve can control the connection situation of air inlet pipe and right compression conduit, control air and enter radiation shell, the size of air inlet pipe should determine with heat exhaust, it is usually 5~30mm, air inlet pipe can be rubber tube, rubber tube is solid, lightweight, there is elasticity, the material of air inlet pipe is alternatively metal tube, metal tube is the most durable, electric control gear a acceptable signal and air inlet valve opening/closing.
A kind of mine car brake, the internal diameter of described exhaustor is 20~60mm, and the material of described exhaustor is rubber or metal material, and the outlet of described exhaustor is provided with acoustic filter, and described exhaustor is provided with air bleeding valve, and described air bleeding valve is provided with electric control gear b.
Due to said structure, the internal diameter of exhaustor is set to 20~60mm, preferably connects air bleeding valve and acoustic filter, and air bleeding valve also has the effect of isolation external dust, electric control gear b acceptable signal and air inlet valve opening/closing, the acoustic filter being provided with can reduce the noise in brake temperature-fall period.
A kind of mine car brake, the fin in described radiation shell is arranged symmetrically, and described fin is perpendicular to radiation shell, and described fin shape is waveform, and the height of described fin is 30~80mm, and the thickness of described fin is 2~5mm.
Due to said structure, it is set to be arranged symmetrically with by fin and for waveform, fin can be dispelled the heat to a greater extent, arrange in only the horizontal direction at the fin outside radiation shell, reducing windage, the height of fin can not affect other part time job, and its thickness is tried one's best when meeting intensity, the thinnest and quantity is many, by increasing capacitance it is possible to increase the heat-sinking capability of radiation shell.
A kind of mine car brake, is provided with temperature sensor in described radiation shell, described temperature sensor is connected with signal processing module a, and described signal processing module a is connected with wireless transmitter a;It is provided with ECU in described mine car, described ECU is connected with wireless receiver a and wireless transmitter b, described electric control gear a, electric control gear b are provided with wireless receiver b, described wireless receiver b and are connected with signal processing module b, and described signal processing module b is connected with intake valve, air bleeding valve;
The real time temperature that described temperature sensor records is t, and the temperature signal recorded is sent to signal processing module a by described temperature sensor, and the temperature signal after described signal processing module will process passes to wireless transmitter a;Temperature signal is sent to wireless receiver a by described wireless transmitter a, temperature signal is passed to ECU by described wireless receiver a, described ECU processes the temperature signal data received, described ECU processing mode: owing to the temperature of the best braking effect of brake is less than 350 DEG C, if t >=270 DEG C time, ECU sends unlatching intake valve, air bleeding valve signal instruction and transmits a signal to wireless transmitter b, if during t < 270 DEG C, then temperature is normal;
If during t >=270 DEG C, described ECU sends to wireless transmitter b and opens intake valve, the signal command of air bleeding valve, the signal command that ECU is sent by described wireless transmitter b is sent to wireless receiver b, after described wireless receiver b receives the signal command that ECU sends, signal command is sent to signal processing module b, described signal processing module b is sent to electric control gear a after signal command being changed, electric control gear b, described electric control gear a, electric control gear b performs Command Task after receiving signal command, open intake valve, air bleeding valve, after described intake valve and air bleeding valve are opened, discharge in compressed air in mine car enters radiation shell and from exhaustor, described compressed air takes away the heat in radiation shell;When t≤130 DEG C, described ECU sends the signal command closing intake valve with air bleeding valve, by above-mentioned identical control process, described intake valve and exhaust valve closure.
The beneficial effects of the utility model are:
1, by brake-shoe and friction plate are located at outside brake drum, brake-shoe, friction plate are located at inside radiation shell with brake drum so that have greater room when installing brake-shoe, friction plate with brake drum;
2, by being provided with fin inside radiation shell, radiation shell is provided with air inlet pipe and exhaustor so that the heat that braking produces can be discharged rapidly by brake, keeps the persistence of good braking effect, increases the reliability of brake;
3, by being respectively equipped with intake valve, air bleeding valve in air inlet pipe with exhaustor, by the wireless transmitter being provided with is connected with ECU with wireless receiver, temperature sensor it is provided with in radiation shell, make when brake temperature raises, ECU can judge rapidly that brake needs heat radiation, it is possible to can only temperature in control brake.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in detail.
A kind of mine car brake as shown in Figure 1, including brake-shoe 1, friction plate 2, brake drum 3, radiation shell 4, return spring 5, air inlet pipe 6, intake valve 7, air bleeding valve 8, exhaustor 9, support column 10, wheel cylinder 11, fin 12, described mine car brake includes: brake-shoe 1, friction plate 2, brake drum 3, described friction plate 2 is located on brake-shoe 1, it is outside that described friction plate 2 and brake-shoe 1 are located at brake drum 3, it is internal that described brake-shoe 1, friction plate 2 and brake drum 3 are located at radiation shell 4, and described radiation shell 4 body is provided with air inlet pipe 6 and exhaustor 9;The quantity of described brake-shoe 1 is 2, said two brake-shoe 1 in radiation shell 4 centered by be arranged symmetrically with, described brake-shoe 1 one end is fixed on support column 10, and the other end is connected with wheel cylinder 11 and return spring 5;Described air inlet pipe 6 is connected with the compressed air line of mine car, and described air inlet pipe 6 is provided with intake valve 7 and decompressor, and the internal diameter of described air inlet pipe 6 is 20mm, and the material of described air inlet pipe 6 is rubber, and described intake valve 7 is provided with electric control gear a;The internal diameter of described exhaustor 9 is 30mm, and the material of described exhaustor 9 is quality of rubber materials, and the outlet of described exhaustor 9 is provided with acoustic filter, and described exhaustor 9 is provided with air bleeding valve 8, and described air bleeding valve 8 is provided with electric control gear b;Fin 12 in described radiation shell 4 is arranged symmetrically, and described fin 12 is perpendicular to radiation shell 4, described fin 12 be shaped as waveform, the height of described fin 12 is 40mm, and the thickness of described fin 12 is 3mm;
Being provided with temperature sensor in described radiation shell 4, described temperature sensor is connected with signal processing module a, and described signal processing module a is connected with wireless transmitter a;It is provided with ECU in described mine car, described ECU is connected with wireless receiver a and wireless transmitter b, described electric control gear a, electric control gear b are provided with wireless receiver b, described wireless receiver b and are connected with signal processing module b, and described signal processing module b is connected with intake valve 7, air bleeding valve 8;The real time temperature that described temperature sensor records is t, and the temperature signal recorded is sent to signal processing module a by described temperature sensor, and the temperature signal after described signal processing module will process passes to wireless transmitter a;Temperature signal is sent to wireless receiver a by described wireless transmitter a, temperature signal is passed to ECU by described wireless receiver a, described ECU processes the temperature signal data received, described ECU processing mode: if during t >=270 DEG C, ECU sends unlatching intake valve 7, air bleeding valve 8 signal instruction and transmits a signal to wireless transmitter b, if during t < 270 DEG C, then temperature is normal;
If during t >=270 DEG C, described ECU sends to wireless transmitter b and opens intake valve 7, the signal command of air bleeding valve 8, the signal command that ECU is sent by described wireless transmitter b is sent to wireless receiver b, after described wireless receiver b receives the signal command that ECU sends, signal command is sent to signal processing module b, described signal processing module b is sent to electric control gear a after signal command being changed, electric control gear b, described electric control gear a, electric control gear b performs Command Task after receiving signal command, open intake valve 7, air bleeding valve 8, after described intake valve 7 is opened with air bleeding valve 8, in compressed air in mine car enters radiation shell 4 and discharge from exhaustor 9, described compressed air takes away the heat in radiation shell 4;When t≤130 DEG C, described ECU sends the signal command closing intake valve 7 with air bleeding valve 8, and by above-mentioned identical control process, described intake valve 7 cuts out with air bleeding valve 8.
The course of action of mine car brake of the present utility model is:
1, mine car driver brake pedal when mine car needs to slow down, brake oil liquid stream is made to enter wheel cylinder 11, piston in wheel cylinder 11 promotes brake-shoe 1 to rotate around support column 10, make friction plate 2 press brake drum 3 to produce friction and form braking, loosen the brake driver, braking fluid backflow, piston in wheel cylinder 11 is retracted, under the effect of return spring, brake-shoe 1 turns round around support column 10, gap is produced so that brake is in non-brake state between friction plate 2 and brake drum 3;
2, after the braking of long period, drum brake can produce substantial amounts of heat, so that brake keeps good braking effect, in the following manner brake is dispelled the heat: by the temperature sensor being located in radiation shell 4, measured temperature signal is passed to ECU, ECU is by judging when temperature t >=270 DEG C, open intake valve 7 and air bleeding valve 8, the cryogenic gas making cleaning enters from air inlet pipe 6 discharges and takes away, from exhaustor 9, the high temperature that braking produces, the temperature making whole brake is maintained in allowed band, during discharging high temperature, the impurity such as the chip also braking produced together are discharged;When t≤130 DEG C, described ECU sends the signal command closing intake valve 7 with air bleeding valve 8, intake valve 7 cuts out with air bleeding valve 8, when brake temperature t >=270 DEG C in braking procedure, intake valve 7 is opened from newly, and then form a down cycles to brake, keep the braking that brake is good, and the acoustic filter being provided with can reduce the noise in brake temperature-fall period.