CN211223391U - Hydraulic parking braking mechanism of road roller and brake wheel with parking braking function - Google Patents
Hydraulic parking braking mechanism of road roller and brake wheel with parking braking function Download PDFInfo
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- CN211223391U CN211223391U CN201922290190.6U CN201922290190U CN211223391U CN 211223391 U CN211223391 U CN 211223391U CN 201922290190 U CN201922290190 U CN 201922290190U CN 211223391 U CN211223391 U CN 211223391U
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Abstract
The utility model relates to a hydraulic parking braking mechanism of a road roller, which comprises a brake disc arranged on a rear steel wheel; and the parking brake hydraulic cylinder is arranged on the right bent plate of the steel wheel and can apply brake force to the brake disc. The utility model also discloses a brake wheel with parking braking function. The utility model has the advantages that: the parking brake hydraulic cylinder is contracted, the road roller can normally run, the end part of a piston rod of the parking brake hydraulic cylinder, which extends out of the parking brake hydraulic cylinder, abuts against the friction surface of the brake disc to limit the rotation of the rear steel wheel, so that the parking brake function is achieved, the vehicle can be prevented from slipping backwards and forwards, even accidents can be avoided, the performance is reliable, and the adaptability to different slopes is strong.
Description
Technical Field
The utility model relates to a road roller hydraulic pressure parking arrestment mechanism and brake wheel that has parking braking function belongs to road roller manufacturing technical field.
Background
The parking brake is one of the indispensable brake devices of the vehicle, and the parking brake is also a hand brake in our ordinary times. The parking brake should ensure that the vehicle is parked on a grade-compliant grade without rolling down the grade, and a central parking brake mounted and acting on the propeller shaft is used in many types of vehicles.
However, the existing road roller is not provided with a corresponding device, and when the existing hand-held double-steel-wheel vibratory road roller is flamed out and stops on a half slope, the phenomenon of slope slipping can occur under the action of the self gravity of the road roller. The road roller hydraulic parking braking mechanism and the brake wheel with the parking braking function are urgently needed because the road roller is frequently collided due to the fact that the road roller slides on a slope every year.
SUMMERY OF THE UTILITY MODEL
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: in order to solve one of the problems, the hydraulic parking braking mechanism of the road roller and the brake wheel with the parking braking function are provided.
For solving one of the above-mentioned problem, road roller hydraulic pressure parking arrestment mechanism, its characterized in that: comprises a brake disc arranged on a rear steel wheel; and the parking brake hydraulic cylinder is arranged on the right bent plate of the steel wheel and can apply brake force to the brake disc. The parking brake hydraulic cylinder is contracted, the road roller can normally run, the end part of a piston rod of the parking brake hydraulic cylinder, which extends out of the parking brake hydraulic cylinder, abuts against the friction surface of the brake disc to limit the rotation of the rear steel wheel, so that the parking brake function is achieved, the vehicle can be prevented from slipping backwards and forwards, even accidents can be avoided, the performance is reliable, and the adaptability to different slopes is strong.
In order to solve the second problem, the utility model also provides a brake wheel with parking brake function, which comprises the hydraulic parking brake mechanism of the road roller, a rear steel wheel, a right steel wheel bending plate and a left steel wheel bending plate which are respectively arranged at the two ends of the rear steel wheel, the brake disc is characterized in that the steel wheel right bent plate is a motor side plate, a motor is installed on the motor side plate, a driving coupler is coaxially arranged on the right end face of the rear steel wheel, a damping supporting plate is fixed on the right end face of the driving coupler, a brake disc is installed on the right end face of the damping supporting plate, a avoiding hole for a power output shaft of the motor to pass is formed in the damping supporting plate, the brake disc and the motor side plate, the power output shaft of the motor sequentially passes through the motor side plate, the brake disc and the damping supporting plate is connected with the driving coupler, the rear steel wheel is driven to rotate, and a parking brake hydraulic cylinder capable of applying brake force to the brake disc is installed on the motor.
Preferably, the motor and the centre line of the rear steel wheel are kept coincident.
Preferably, the motor is hydraulic motor, and parking braking pneumatic cylinder installs in motor curb plate bottom, sets up the hole of dodging that supplies the piston rod to pass on the motor curb plate, and parking braking pneumatic cylinder and motor all adopt hydraulic power.
Preferably, still including the flexible pilot operated braking system that is used for controlling parking braking pneumatic cylinder, pilot operated braking system includes that the oil inlet of parking braking solenoid valve group is connected to the oil return opening of steering gear valves, and the oil return opening of parking braking solenoid valve group is connected to the oil tank.
Preferably, the parking brake solenoid valve set comprises a first reversing valve, a second reversing valve and an overflow valve, an oil inlet of the second reversing valve is connected to an oil return port of the steering gear valve set, an oil outlet of the second reversing valve is connected to a rod cavity of the parking brake hydraulic cylinder, an oil inlet of the first reversing valve is connected to the rod cavity of the parking brake hydraulic cylinder, an oil outlet of the first reversing valve is connected to an oil tank, an oil inlet of the overflow valve is connected to an oil inlet of the second reversing valve, an oil outlet of the overflow valve is connected to an oil inlet of a radiator, and an oil outlet of. The parking braking system utilizes oil return port hydraulic oil of a steering system of the road roller to provide hydraulic oil for the parking braking system, the parking braking hydraulic cylinder is controlled to stretch out and draw back through the parking braking electromagnetic valve bank, the parking braking system utilizes oil return of the steering system to reduce the manufacturing cost of the hydraulic system, the oil return is effectively utilized to reduce the heat productivity of the hydraulic system, the parking braking electromagnetic valve bank is provided with an overflow valve, and the overflow valve protects the safety and the stability of the whole hydraulic system.
Preferably, the first reversing valve, the second reversing valve and the overflow valve are integrated together.
Preferably, the second reversing valve and the first reversing valve are both two-position two-way reversing valves.
Preferably, the reversing valve further comprises a position sensor and a relay, and the position sensor, the signal control end of the first reversing valve and the signal control end of the second reversing valve are electrically connected with the relay. The position sensor is fixed on the side surface of a walking control handle of the road roller through a sensor support, the position sensor and the walking control handle are ensured to be in a sensing area in a neutral state, when the handle is pushed forwards or backwards, the position sensor outputs a signal to control the relay to be attracted, the first reversing valve and the second reversing valve are electrified after the relay is attracted, the hydraulic oil controls the parking brake hydraulic cylinder to contract after the electromagnetic valve is electrified, the road roller can normally run, when the walking control handle of the road roller is in the neutral position, the position sensor does not output a signal, the relay is disconnected, the first reversing valve and the second reversing valve are electrified, the parking brake hydraulic cylinder extends out to limit the rotation of a rear steel wheel, so that the parking brake function is achieved, the automatic emergency stop parking operation of the road roller can be completed without adding an independent button, the process time of manual operation is correspondingly reduced, and the braking distance is effectively shortened, the emergency stop efficiency and the driving safety are improved, and the phenomenon of slope slipping caused by human factors can be avoided in actual operation.
Preferably, the position sensor is a proximity switch.
Preferably, the brake disc and the damping supporting plate are fixed on the driving coupling through a second spring washer and a first hexagon bolt; the parking brake hydraulic cylinder is fixed at the bottom of the motor side plate through a flat washer, a spring washer and a hexagon bolt II; the motor is fixed on the motor side plate through the first spring washer, the hexagonal locking nut, the third spring washer and the inner hexagonal socket head cap screw.
Preferably, the hydraulic control braking system further comprises a vibration electromagnetic valve bank, a vibration motor, a steering gear valve bank and an oil pump, wherein an oil outlet of the oil pump is connected to the vibration electromagnetic valve bank, and a first oil outlet and a second oil outlet of the vibration electromagnetic valve bank are respectively connected with the vibration motor and the steering gear valve bank.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a hydraulic parking braking mechanism of a road roller, which comprises a brake disc arranged on a rear steel wheel; and the parking brake hydraulic cylinder is arranged on the right bent plate of the steel wheel and can apply brake force to the brake disc. The parking brake hydraulic cylinder is contracted, the road roller can normally run, the end part of a piston rod of the parking brake hydraulic cylinder, which extends out of the parking brake hydraulic cylinder, abuts against the friction surface of the brake disc to limit the rotation of the rear steel wheel, so that the parking brake function is achieved, the vehicle can be prevented from slipping backwards and forwards, even accidents can be avoided, the performance is reliable, and the adaptability to different slopes is strong.
2. Road roller hydraulic pressure parking arrestment mechanism, parking braking electromagnetism valves includes switching-over valve one, switching-over valve two and overflow valve, the oil inlet of switching-over valve two is connected to the oil return opening of steering gear valves, the oil-out of switching-over valve two is connected to parking braking hydraulic cylinder's the pole chamber that has, the oil inlet of switching-over valve one is connected to parking braking hydraulic cylinder's the pole chamber that has, the oil-out of switching-over valve one is connected to the oil tank, the oil inlet of overflow valve is connected to the oil inlet of switching-over valve two, the oil-out of overflow valve is connected to the oil inlet of radiator. The parking braking system utilizes oil return port hydraulic oil of a steering system of the road roller to provide hydraulic oil for the parking braking system, the parking braking hydraulic cylinder is controlled to stretch out and draw back through the parking braking electromagnetic valve bank, the parking braking system utilizes oil return of the steering system to reduce the manufacturing cost of the hydraulic system, the oil return is effectively utilized to reduce the heat productivity of the hydraulic system, the parking braking electromagnetic valve bank is provided with an overflow valve, and the overflow valve protects the safety and the stability of the whole hydraulic system.
3. Road roller hydraulic pressure parking arrestment mechanism, still include position sensor and relay, the signal control end of position sensor, switching-over valve one, the signal control end of switching-over valve two all with relay electric connection. The position sensor is fixed on the side surface of a walking control handle of the road roller through a sensor support, the position sensor and the walking control handle are ensured to be in a sensing area in a neutral state, when the handle is pushed forwards or backwards, the position sensor outputs a signal to control the relay to be attracted, the first reversing valve and the second reversing valve are electrified after the relay is attracted, the hydraulic oil controls the parking brake hydraulic cylinder to contract after the electromagnetic valve is electrified, the road roller can normally run, when the walking control handle of the road roller is in the neutral position, the position sensor does not output a signal, the relay is disconnected, the first reversing valve and the second reversing valve are electrified, the parking brake hydraulic cylinder extends out to limit the rotation of a rear steel wheel, so that the parking brake function is achieved, the automatic emergency stop parking operation of the road roller can be completed without adding an independent button, the process time of manual operation is correspondingly reduced, and the braking distance is effectively shortened, the emergency stop efficiency and the driving safety are improved, and the phenomenon of slope slipping caused by human factors can be avoided in actual operation.
4. Brake wheel with parking braking function, through installing above-mentioned road roller hydraulic pressure parking arrestment mechanism additional, parking braking pneumatic cylinder shrink, the road roller can normally travel, parking braking pneumatic cylinder stretches out parking braking pneumatic cylinder's tailpiece of the piston rod portion butt on the friction surface of brake disc, the restriction back steel wheel rotates to reach parking braking function, can avoid the vehicle to fall the swift current, the accident even, the dependable performance, and to the strong adaptability of different ramps.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a hydraulic schematic diagram of the present invention;
FIG. 3 is a schematic circuit diagram of the present invention;
in the figure: 1. the parking brake system comprises a rear steel wheel 2, a driving coupler 3, a damping support plate 4, a first spring washer 5, a hexagonal locking nut 6, a brake disc 7, a second spring washer 8, a first hexagonal bolt 9, a motor side plate 10, a parking brake hydraulic cylinder 11, a flat washer 12, a spring washer 13, a second hexagonal bolt 14, a motor 15, a third spring washer 16, an inner hexagonal socket head screw 17, a left steel wheel bent plate 18, a vibrating electromagnetic valve group 19, a vibrating motor 20, a steering gear valve group 21, a parking brake electromagnetic valve group 22, a radiator 23, an oil pump 24, a first reversing valve 25, a second reversing valve 26, an overflow valve 27, a position sensor 28 and a relay.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Examples
As shown in fig. 1-3, the hydraulic parking brake mechanism of the road roller comprises a brake disc 6 mounted on a rear steel wheel 1; and the parking brake hydraulic cylinder 10 is arranged on the right bent plate of the steel wheel and can apply brake force to the brake disc 6. The parking brake hydraulic cylinder 10 is contracted, the road roller can normally run, the end part of a piston rod of the parking brake hydraulic cylinder 10, which extends out of the parking brake hydraulic cylinder 10, abuts against the friction surface of the brake disc 6 to limit the rotation of the rear steel wheel 1, so that the parking brake function is achieved, the vehicle can be prevented from slipping backwards and forwards, even accidents can be avoided, the performance is reliable, and the adaptability to different slopes is strong.
In the embodiment, the brake wheel with the parking braking function is further disclosed, and comprises the hydraulic parking braking mechanism of the road roller, a rear steel wheel 1, a right steel wheel bent plate and a left steel wheel bent plate 17 which are respectively arranged at two ends of the rear steel wheel 1, the brake device is characterized in that the steel wheel right bent plate is a motor side plate 9, a motor 14 is mounted on the motor side plate 9, a driving coupler 2 is coaxially arranged on the right end face of the rear steel wheel 1, a damping support plate 3 is fixed on the right end face of the driving coupler 2, a brake disc 6 is mounted on the right end face of the damping support plate 3, avoidance holes for a power output shaft of the motor 14 to pass through are formed in the damping support plate 3, the brake disc 6 and the motor side plate 9, the power output shaft of the motor 14 sequentially passes through the motor side plate 9, the brake disc 6 and the damping support plate 3 to be connected with the driving coupler 2, the rear steel wheel 1 is driven to rotate, and a parking brake hydraulic cylinder 10 capable of applying brake force to the brake disc 6 is mounted on; the central lines of the motor 14 and the rear steel wheel 1 are consistent; the motor 14 is a hydraulic motor, the parking brake hydraulic cylinder 10 is installed at the bottom of the motor side plate 9, an avoidance hole for a piston rod to penetrate through is formed in the motor side plate 9, and the parking brake hydraulic cylinder 10 and the motor 14 both adopt hydraulic power; the hydraulic control brake system is used for controlling the parking brake hydraulic cylinder 10 to stretch, the hydraulic control brake system comprises an oil inlet of a parking brake electromagnetic valve group 21 connected to an oil return port of a steering gear valve group 20, and the oil return port of the parking brake electromagnetic valve group 21 is connected to an oil tank; the parking brake electromagnetic valve group 21 comprises a first reversing valve 24, a second reversing valve 25 and an overflow valve 26, wherein an oil inlet of the second reversing valve 25 is connected to an oil return port of the steering gear valve group 20, an oil outlet of the second reversing valve 25 is connected to a rod cavity of the parking brake hydraulic cylinder 10, an oil inlet of the first reversing valve 24 is connected to the rod cavity of the parking brake hydraulic cylinder 10, an oil outlet of the first reversing valve 24 is connected to an oil tank, an oil inlet of the overflow valve 26 is connected to an oil inlet of the second reversing valve 25, an oil outlet of the overflow valve 26 is connected to an oil inlet of the radiator 22, an oil outlet of the radiator 22 is connected to the oil tank, the parking brake system utilizes hydraulic oil return port hydraulic oil of a steering system of a road roller to provide hydraulic oil for the parking brake system, the parking brake hydraulic cylinder 10 is, the heating value of the hydraulic system is reduced by effectively utilizing the return oil, the parking brake electromagnetic valve group is provided with an overflow valve, and the overflow valve protects the safety and the stability of the whole set of hydraulic system; the first reversing valve 24, the second reversing valve 25 and the overflow valve 26 are integrated together; the second reversing valve 25 and the first reversing valve 24 are two-position two-way reversing valves; the parking brake system further comprises a position sensor 27 and a relay 28, the position sensor 27, a signal control end of the first reversing valve 24 and a signal control end of the second reversing valve 25 are electrically connected with the relay 28, the position sensor 27 is fixed on the side face of a walking control handle of the road roller through a sensor support, the position sensor 27 and the walking control handle are in a sensing area in a neutral gear state, when the handle is pushed forwards or backwards, the position sensor 27 outputs a signal to control the relay 28 to suck, the first reversing valve 24 and the second reversing valve 25 are powered after the relay 28 is sucked, hydraulic oil controls the parking brake hydraulic cylinder 10 to contract after the electromagnetic valve is powered, the road roller can normally run, when the walking control handle of the road roller is in the neutral gear position, the position sensor 27 does not output a signal, the relay 28 is disconnected, the first reversing valve 24 and the second reversing valve 25 are powered off, and the parking brake hydraulic cylinder 10 extends out, the rotation of the rear steel wheel 1 is limited, so that the parking braking function is achieved, the automatic emergency stop parking operation of the road roller can be completed without adding an independent button, and the process time of manual operation is correspondingly reduced, so that the purposes of shortening the braking distance, improving the emergency stop efficiency and driving safety are effectively achieved, and the phenomenon of slope slipping caused by human factors can be avoided in the actual operation; the position sensor 27 is a proximity switch; the brake disc 6 and the damping supporting plate 3 are fixed on the driving coupling 2 through a spring washer II 7 and a hexagon bolt I8; the parking brake hydraulic cylinder 10 is fixed at the bottom of the motor side plate 9 through a flat washer 11, a spring washer 12 and a hexagon bolt II 13; the motor 14 is fixed on the motor side plate 9 through a first spring washer 4, a hexagonal lock nut 5, a third spring washer 15 and an inner hexagonal socket head cap screw 16; the hydraulic control brake system further comprises a vibration electromagnetic valve group 18, a vibration motor 19, a steering gear valve group 20 and an oil pump 23, an oil outlet of the oil pump 23 is connected to the vibration electromagnetic valve group 18, and a first oil outlet and a second oil outlet of the vibration electromagnetic valve group 18 are respectively connected with the vibration motor 19 and the steering gear valve group 20.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a road roller hydraulic pressure parking arrestment mechanism which characterized in that: comprises a brake disc (6) arranged on a rear steel wheel (1); and the parking brake hydraulic cylinder (10) is arranged on the right bent plate of the steel wheel and can apply brake force to the brake disc (6).
2. The utility model provides a brake wheel with parking braking function which characterized in that: the hydraulic parking brake mechanism of the road roller according to claim 1, further comprising a rear steel wheel (1), a right steel wheel bending plate and a left steel wheel bending plate (17) which are respectively arranged at two ends of the rear steel wheel (1), wherein the right steel wheel bending plate is a motor side plate (9), a motor (14) is arranged on the motor side plate (9), a driving coupling (2) is coaxially arranged on the right end face of the rear steel wheel (1), a damping support plate (3) is fixed on the right end face of the driving coupling (2), a brake disc (6) is arranged on the right end face of the damping support plate (3), avoiding holes for a power output shaft of the motor (14) to pass through are respectively formed in the damping support plate (3), the brake disc (6) and the motor side plate (9), the power output shaft of the motor (14) sequentially passes through the motor side plate (9), the brake disc (6) and the damping support plate (3) to be connected with the driving coupling (2), the rear steel wheel (1) is driven to rotate, and a parking brake hydraulic cylinder (10) capable of applying brake force to the brake disc (6) is installed on the motor side plate (9).
3. The brake wheel with parking brake function according to claim 2, characterized in that: the central lines of the motor (14) and the rear steel wheel (1) are kept consistent.
4. The brake wheel with parking brake function according to claim 3, characterized in that: the parking brake system is characterized in that the motor (14) is a hydraulic motor, the parking brake hydraulic cylinder (10) is installed at the bottom of the motor side plate (9), an avoiding hole for the piston rod to penetrate is formed in the motor side plate (9), and the parking brake hydraulic cylinder (10) and the motor (14) both adopt hydraulic power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922290190.6U CN211223391U (en) | 2019-12-19 | 2019-12-19 | Hydraulic parking braking mechanism of road roller and brake wheel with parking braking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922290190.6U CN211223391U (en) | 2019-12-19 | 2019-12-19 | Hydraulic parking braking mechanism of road roller and brake wheel with parking braking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211223391U true CN211223391U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922290190.6U Active CN211223391U (en) | 2019-12-19 | 2019-12-19 | Hydraulic parking braking mechanism of road roller and brake wheel with parking braking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211223391U (en) |
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2019
- 2019-12-19 CN CN201922290190.6U patent/CN211223391U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hydraulic parking brake mechanism of roller and brake wheel with parking brake function Effective date of registration: 20211202 Granted publication date: 20200811 Pledgee: Bank of China Limited Jining Branch Pledgor: JINING FURUIDE MACHINERY MANUFACTURING CO.,LTD. Registration number: Y2021980013857 |