An auxiliary braking device and method for a tire roller

Abstract

The present invention discloses an auxiliary braking device and method for a tire roller, specifically including: a radar controller; a reverse switch, the reverse switch is connected to a reverse relay, and the controlled end of the reverse relay is connected to the input end of the radar controller; a parking brake relay, the control end of the parking brake relay is connected to a front cable switch and a rear cable switch, and the controlled end is connected to a parking brake solenoid valve; the front cable switch and the rear cable switch are connected to the controlled end of the reverse relay; a service brake relay, the control end of the service brake relay is connected to the output end of the radar controller, and the controlled end is connected to a service brake solenoid valve; the radar controller controls the vehicle braking of the whole machine to avoid collisions, or when the cable switch touches an obstacle, controls the parking brake of the whole machine to reduce the collision damage, so as to achieve the protection effect of inductive braking and emergency stop upon contact for surrounding equipment or personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery, and particularly relates to an auxiliary braking device and method for a tire roller. Background Art

[0002] Tire static rollers mainly rely on their own static pressure to compact the working medium, and can adjust the contact force of the tires on the ground by adjusting the ballast and tire inflation pressure, so as to adapt to different working conditions. Tire static rollers have good mobility and can have a driving speed of up to 20 km / h. Also, due to their flexible compaction characteristics, they are commonly used for the leveling operation of asphalt concrete pavements and generally reciprocate to compact the pavement during operation. In summary, tire static rollers are heavy, fast, and have complex working conditions, so there are the following problems: Tire static rollers are prone to accidents involving rolling equipment and personnel, and due to the heavy weight of tire static rollers, the personnel injuries are relatively serious. Summary of the Invention

[0003] The purpose of the present invention is to provide an auxiliary braking device and method for a tire roller to solve the defects that in the prior art, tire static rollers are prone to accidents involving rolling equipment and personnel, and due to the heavy weight of tire static rollers, the personnel injuries are relatively serious.

[0004] An auxiliary braking device for a tire roller includes:

[0005] A radar controller;

[0006] A reverse switch, the reverse switch is connected to a reverse relay, and the controlled end of the reverse relay is connected to the input end of the radar controller;

[0007] A parking brake relay, the control end of the parking brake relay is connected to a front pull wire switch and a rear pull wire switch, and the controlled end of the parking brake relay is connected to a parking brake solenoid valve; the front pull wire switch and the rear pull wire switch are connected to the controlled end of the reverse relay;

[0008] A service brake relay, the control end of the service brake relay is connected to the output end of the radar controller, and the controlled end of the service brake relay is connected to a service brake solenoid valve.

[0009] Further, the device further includes a function switch, one end of the function switch is connected to the power supply end, and the other end is respectively connected to the power supply end of the reverse relay and the input end of the radar controller.

[0010] Further, the reverse relay includes a reverse relay coil and a reverse relay contact;

[0011] The reverse relay coil is connected to the reverse switch; one end of the normally closed contact of the reverse relay contact is connected to the a pin of the radar controller, and the other end is connected to the function switch; the normally open contact is connected to the b pin of the radar controller.

[0012] Further, a buzzer is connected to the output end of the radar controller.

[0013] Further, a front radar probe and a rear radar probe are also provided at the input end of the radar controller.

[0014] Further, the service brake relay includes a service brake relay coil and a service brake relay contact;

[0015] The service brake relay coil is connected to the i pin of the radar controller; one end of the service brake relay contact is connected to the service brake solenoid valve.

[0016] Further, the parking brake relay includes a parking brake relay coil and a parking brake relay contact;

[0017] The parking brake relay coil is connected to the front cable switch and the rear cable switch; one end of the parking brake relay contact is connected to the power supply end and the other end of the service brake relay contact; the other end of the parking brake relay contact is connected to the parking brake solenoid valve.

[0018] An auxiliary braking method for a pneumatic tire roller, the method comprising the steps of:

[0019] When the auxiliary braking device is turned on and the reverse switch is not closed:

[0020] Enable the front auxiliary braking function. If the front radar probe detects an obstacle, the radar controller receives a signal, outputs a high level, and at the same time makes the buzzer sound an alarm and the service brake relay coil is energized, so that the service brake relay contact is disconnected and the service brake solenoid valve is de-energized, then the pneumatic tire roller performs service braking;

[0021] At the same time, when the front auxiliary braking function is enabled: if the front cable switch touches an obstacle, the front cable switch is closed and the parking brake solenoid valve is de-energized, then the pneumatic tire roller performs parking braking;

[0022] When the auxiliary braking device is turned on and the reverse switch is closed:

[0023] Enable the rear auxiliary braking function. When the rear radar probe detects an obstacle, the radar controller outputs a high level, and at the same time makes the buzzer sound an alarm and the service brake relay coil is energized, so that the service brake relay contact is disconnected and the service brake solenoid valve is de-energized, then the pneumatic tire roller performs service braking;

[0024] When the auxiliary braking function is enabled: If the rear cable switch touches an obstacle, the rear cable switch closes, the parking brake solenoid valve loses power, and the tire roller is parked.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: When the tire roller is working, when the radar probe detects an obstacle, the radar controller controls the whole machine to perform service braking to avoid collision, or when the cable switch touches an obstacle, it controls the whole machine to perform parking braking to reduce the collision damage, so as to achieve the protection effect of inductive braking and emergency stop upon contact for surrounding equipment or personnel. Brief Description of the Drawings

[0026] Figure 1 is the schematic diagram of the present invention.

[0027] In the figure: 1. Function switch, 2. Reverse switch, 3. Reverse relay, 4. Front cable switch, 5. Rear cable switch, 6. Parking brake relay, 7. Parking brake solenoid valve, 8. Radar controller, 9. Service brake relay, 10. Service brake solenoid valve, 11. Buzzer, 12. Front radar probe, 13. Rear radar probe, 31. Reverse relay coil, 32. Reverse relay contact, 61. Parking brake relay coil, 62. Parking brake relay contact, 91. Service brake relay coil, 92. Service brake relay contact. Detailed Embodiments

[0028] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] As Figure 1 shown, an auxiliary braking device for a tire roller includes a function switch 1, a reverse switch 2, a reverse relay 3, a front cable switch 4, a rear cable switch 5, a parking brake relay 6, a parking brake solenoid valve 7, a radar controller 8, a service brake relay 9, a service brake solenoid valve 10, a buzzer 11, a front radar probe 12, and a rear radar probe 13;

[0030] The reverse relay 3 includes a reverse relay coil 31 and a reverse relay contact 32. The reverse relay coil 31 is connected to the reverse switch 2; one end of the normally closed contact of the reverse relay contact 32 is connected to the a pin of the radar controller, and the other end is connected to the function switch; the normally open contact of the reverse relay contact 32 is connected to the b pin of the radar controller.

[0031] The parking brake relay 6 includes a parking brake relay coil 61 and a parking brake relay contact 62. The parking brake relay coil 61 is connected to the front cable switch 4 and the rear cable switch 5. The other end of the front cable switch 4 is connected to the a pin of the radar controller; the other end of the rear cable switch 5 is connected to the b pin of the radar controller; one end of the parking brake relay contact 62 is connected to the 24V power supply terminal and one end of the service brake relay contact 92; the other end of the parking brake relay contact 62 is connected to the parking brake solenoid valve 7.

[0032] The service brake relay 9 includes a service brake relay coil 91 and a service brake relay contact 92; the service brake relay coil 91 is connected to the i pin of the radar controller; the other end of the service brake relay contact 92 is connected to the service brake solenoid valve 10.

[0033] Among them, the function switch 1 is respectively connected to the 24V power supply, the c pin of the radar controller 8, and the reverse relay contact 32, and the reverse switch 2 is respectively connected to the 24V power supply and the reverse relay coil 31.

[0034] As Figure 1 shown, the d, e, f, g, h, i pins of the radar controller 8 are respectively connected to the buzzer 11, the front radar probe 12, the rear radar probe 13, and the service brake relay coil 91.

[0035] Furthermore, the service brake relay contact 92 is respectively connected to the 24V power supply and the service brake solenoid valve 10.

[0036] Furthermore, the reverse relay coil 31, the parking brake relay coil 61, the service brake relay coil 91, the j pin of the radar controller 8, the parking brake solenoid valve 7, and the service brake solenoid valve 10 are also respectively grounded.

[0037] Furthermore, the parking brake relay contact 62 and the service brake relay contact 92 are normally closed. The function switch 1, the reverse switch 2, the front cable switch 4, and the rear cable switch 5 are normally open, and the reverse relay contact 32 switches at both ends.

[0038] The present invention also discloses the above-mentioned auxiliary braking method for the tire roller, and the specific process is as follows:

[0039] Since the parking brake relay contact 62 and the service brake relay contact 92 are normally closed and connected to the 24V power supply, the parking brake solenoid valve 7 and the service brake solenoid valve 10 are constantly powered.

[0040] When the function switch 1 is closed: then the c pin of the radar controller 8 is powered, and the radar controller 8 is powered on; at the same time, the reverse relay contact 32 is also powered. At this time, the auxiliary braking device is turned on.

[0041] When the auxiliary braking device is turned on and the reverse switch 2 is not closed: the reverse relay coil 31 is not energized, the front pull wire switch 4 connected to the normally closed end of the reverse relay contact 32 and the a pin of the radar controller 8 are energized, and the front auxiliary braking function is enabled.

[0042] When the front auxiliary braking function is enabled: if the rear radar probe 12 detects an obstacle, the e and f pins of the radar controller 8 receive signals, the d pin of the radar controller 8 outputs a high level, the buzzer 11 is energized and sounds an alarm. At the same time, the i pin of the radar controller 8 outputs a high level, the service brake relay coil 91 is energized, the service brake relay contact 92 is disconnected, the service brake solenoid valve 10 is de-energized, and the tire roller performs service braking; if the front pull wire switch 4 touches an obstacle, the front pull wire switch 4 closes, the parking brake relay coil 61 is energized, the parking brake relay contact 62 is disconnected, the parking brake solenoid valve 7 is de-energized, and the tire roller performs parking braking.

[0043] When the auxiliary braking device is turned on and the reverse switch 2 is closed: the reverse relay coil 31 is energized, the rear pull wire switch 5 connected to the normally open end of the reverse relay contact 32 and the b pin of the radar controller 8 are energized, and the rear auxiliary braking function is enabled.

[0044] When the rear auxiliary braking function is enabled: if the rear radar probe 13 detects an obstacle, the g and h pins of the radar controller 8 receive signals, the d pin of the radar controller 8 outputs a high level, the buzzer 11 is energized and sounds an alarm. At the same time, the i pin of the radar controller 8 outputs a high level, the service brake relay coil 91 is energized, the service brake relay contact 92 is disconnected, the service brake solenoid valve 10 is de-energized, and the tire roller performs service braking; if the rear pull wire switch 5 touches an obstacle, the rear pull wire switch 5 closes, the parking brake relay coil 61 is energized, the parking brake relay contact 62 is disconnected, the parking brake solenoid valve 7 is de-energized, and the tire roller performs parking braking.

[0045] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A tire roller auxiliary braking device, characterized in that, it includes: a radar controller; a reverse switch, the reverse switch is connected to a reverse relay, and the controlled end of the reverse relay is connected to the input end of the radar controller; a parking brake relay, the control end of the parking brake relay is connected to a front cable switch and a rear cable switch, and the controlled end of the parking brake relay is connected to a parking brake solenoid valve; the front cable switch and the rear cable switch are connected to the controlled end of the reverse relay; a service brake relay, the control end of the service brake relay is connected to the output end of the radar controller, and the controlled end of the service brake relay is connected to a service brake solenoid valve; the service brake relay includes a service brake relay coil and a service brake relay contact; the service brake relay coil is connected to the i pin of the radar controller; one end of the service brake relay contact is connected to the service brake solenoid valve; the parking brake relay includes a parking brake relay coil and a parking brake relay contact; the parking brake relay coil is connected to the front cable switch and the rear cable switch; one end of the parking brake relay contact is connected to the power supply end and the other end of the service brake relay contact; the other end of the parking brake relay contact is connected to the parking brake solenoid valve; the output end of the radar controller is connected to a buzzer; the input end of the radar controller is also provided with a front radar probe and a rear radar probe.

2. The tire roller auxiliary braking device according to claim 1, characterized in that, the device further includes a function switch, one end of the function switch is connected to the power supply end, and the other end is respectively connected to the power supply end of the reverse relay and the input end of the radar controller.

3. The tire roller auxiliary braking device according to claim 2, characterized in that, the reverse relay includes a reverse relay coil and a reverse relay contact; the reverse relay coil is connected to the reverse switch; one end of the normally closed contact of the reverse relay contact is connected to the a pin of the radar controller, and the other end is connected to the function switch; the normally open contact is connected to the b pin of the radar controller.

4. The braking method of the tire roller auxiliary braking device according to any one of claims 1-3, characterized in that, the method includes the steps: When the auxiliary braking device is turned on and the reverse switch is not closed: Enable the front auxiliary braking function. If the front radar probe detects an obstacle, the radar controller receives the signal, outputs a high level, and at the same time makes the buzzer sound an alarm and the service brake relay coil is energized, causing the service brake relay contact to disconnect and the service brake solenoid valve to lose power, then the tire roller performs service braking; At the same time when the front auxiliary braking function is enabled: If the front cable switch touches an obstacle, the front cable switch closes, the parking brake solenoid valve loses power, then the tire roller performs parking braking; When the auxiliary braking device is turned on and the reverse switch is closed: After the auxiliary braking function is enabled, when the rear radar sensor detects an obstacle, the radar controller outputs a high level, and at the same time, the buzzer sounds an alarm, the driving brake relay coil is energized, the driving brake relay contacts are disconnected, the driving brake solenoid valve loses power, and the pneumatic tire roller performs driving braking; At the same time, when the auxiliary rear braking function is enabled: if the rear pull wire switch touches an obstacle, the rear pull wire switch closes, the parking brake solenoid valve loses power, and the pneumatic tire roller performs parking braking.

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