CN214742922U - Brake device of electric road sweeper - Google Patents
Brake device of electric road sweeper Download PDFInfo
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- CN214742922U CN214742922U CN202121112942.0U CN202121112942U CN214742922U CN 214742922 U CN214742922 U CN 214742922U CN 202121112942 U CN202121112942 U CN 202121112942U CN 214742922 U CN214742922 U CN 214742922U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model relates to a rubbish cleans the equipment field, specifically is an electronic road sweeper arresting gear. The electromagnetic brake proportional valve is connected with the oil tank through the oil return pipe, the electromagnetic brake proportional valve is electrically connected with the PLC through the control line, the PLC is connected with the motor controller through the CAN communication line, the motor controller is connected with the permanent magnet synchronous motor through the power output line, and the electronic brake pedal is connected with the PLC. The driving mileage is increased while the energy consumption is saved, the excessive abrasion of the hydraulic brake is avoided, the control precision is improved, the control convenience is improved, and the driving safety is ensured.
Description
Technical Field
The utility model relates to a rubbish cleans the equipment field, specifically is an electronic road sweeper arresting gear.
Background
The electric road sweeper is used as one kind of environmental sanitation equipment, is different from special vehicles such as a traditional road sweeper and the like, and is widely applied to cleaning operation of residential areas, narrow streets, campuses, city parks, factory and mining scenic spots and the like due to the characteristics of small size, flexible steering, low cost, easy operation and the like; when the electric road sweeper is used for sweeping in residential areas, narrow streets, campuses, city parks, factory and mining scenic spots and the like, the reliability of a braking system determines the safety performance of the whole vehicle, the electric road sweeper in the prior art is generally braked by a hydraulic brake, the hydraulic brake is seriously abraded in the long-term use process, the brake failure is seriously caused to cause life and property loss, the electric road sweeper is driven by a power supply, and most of mechanical energy of the electric road sweeper is converted into heat energy through the friction of the brake to be consumed in the braking process; how to solve the problem of serious abrasion of the hydraulic brake and how to utilize the braking power generation to recover the braking energy and feed the braking energy back to the battery to reduce the energy consumption of the electric road sweeper are technical problems to be urgently solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem to a motor-driven road sweeper arresting gear is provided, increase the mileage of continuing a journey when practicing thrift the energy consumption, reduce hydraulic braking action time, and then avoid the stopper excessive wear, realized mechanical control's substitution, improved control accuracy, improved the convenience of control, ensure driving safety.
The utility model provides a problem, the technical scheme who adopts is:
the utility model provides an electronic road sweeper arresting gear, include by high pressure fuel feeding pipe, the oil tank, the filter, the hydraulic pump, the prefill valve, the energy storage ware, electromagnetic brake proportional valve, hydraulic brake, return oil pipe, the control line, PLC, the CAN communication line, machine controller, the power take-off line, PMSM and electronic brake pedal constitute, the oil tank passes through high pressure fuel feeding pipe and in proper order with the filter, the hydraulic pump, the prefill valve, the energy storage ware, electromagnetic brake proportional valve, hydraulic brake is connected, electromagnetic brake proportional valve passes through the return oil pipe and is connected with the oil tank, electromagnetic brake proportional valve passes through the control line and is connected with the PLC electricity, PLC passes through the CAN communication line and is connected with machine controller, machine controller passes through the power take-off line and is connected with PMSM, electronic brake pedal is connected with PLC.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:
the utility model discloses arresting gear is stepping on down electronic brake pedal initial stage, turn into electric energy repayment battery through the PMSM braking and with the mechanical energy of braking in-process, increase the continuation of the journey mileage when practicing thrift the energy consumption, reduce hydraulic braking action time, and then avoid hydraulic brake excessive wear, reduce the equipment fault rate, stepping on down electronic brake pedal back stage, PMSM braking and hydraulic brake braking simultaneous working, mechanical control's substitution has been realized, the control accuracy is improved, the convenience of control has been improved, ensure driving safety.
Preferably, the present invention further provides:
an overflow valve is arranged between the hydraulic pump and the liquid filling valve and is connected with the oil tank through a high-pressure oil supply pipe.
The hydraulic brakes are provided with a plurality of groups and are respectively connected with the electromagnetic brake proportional valve through high-pressure oil supply pipes.
The liquid filling valve is also provided with a bypass pipeline.
Drawings
Fig. 1 is a schematic diagram of a system according to an embodiment of the present invention;
in the figure: an accumulator 1; a liquid charging valve 2; a high-pressure oil supply pipe 3; a control line 4; a PLC 5; a CAN communication line 6; a motor controller 7; a power take-off line 8; a permanent magnet synchronous motor 9; an electronic brake pedal 10; a hydraulic brake 11; an electromagnetic brake proportional valve 12; an oil return pipe 13; a bypass line 14; a hydraulic pump 15; a filter 16; an oil tank 17; a relief valve 18.
Detailed Description
The following description of the embodiments will help the public to understand the present invention, but the specific embodiments given by the applicant should not be considered as limiting the technical solution of the present invention, and any changes in the definition of the components or technical features and/or in the form of the overall structure rather than substantial changes should be considered as the protection scope defined by the technical solution of the present invention.
Referring to fig. 1, the technical solution of the present invention is as follows:
a braking device of an electric road sweeper comprises an energy accumulator 1, a liquid charging valve 2, a high-pressure oil supply pipe 3, a control line 4, a PLC 5, a CAN communication line 6, a motor controller 7, a power output line 8, a permanent magnet synchronous motor 9, an electronic brake pedal 10, a hydraulic brake 11, an electromagnetic brake proportional valve 12, an oil return pipe 13, a bypass oil way 14, a hydraulic pump 15, a filter 16, an oil tank 17 and an overflow valve 18, wherein the oil tank 17 is sequentially connected with the filter 16, the hydraulic pump 15, the liquid charging valve 2, the energy accumulator 1, the electromagnetic brake proportional valve 12 and the hydraulic brake 11 through the high-pressure oil supply pipe 3, the electromagnetic brake proportional valve 12 is connected with the oil tank 17 through the oil return pipe 13, the electromagnetic brake proportional valve 12 is electrically connected with the PLC 5 through the control line 4, the PLC 5 is connected with the motor controller 7 through the CAN communication line 6, the motor controller 7 is connected with the permanent magnet synchronous motor 9 through the power output line 8, the electronic brake pedal 10 is connected with the PLC 5; the overflow valve 18 is arranged between the hydraulic pump 15 and the liquid charging valve 2, and the overflow valve 18 is connected with the oil tank 17 through a high-pressure oil supply pipe; the liquid filling valve 2 is also provided with a bypass pipeline 14; the oil tank 17 provides a high-pressure hydraulic oil source for the hydraulic brake 11; by arranging the liquid charging valve 2, when the pressure of hydraulic oil in the energy accumulator 1 is at a low position, the liquid charging valve 2 automatically charges the energy accumulator 1, when the pressure of the hydraulic oil in the energy accumulator 1 is at a high position, the liquid charging valve 2 stops automatically charging the energy accumulator 1, and redundant oil is input to other hydraulic units through a bypass pipeline 14 connected with the liquid charging valve 2; two groups of hydraulic brakes 11 are arranged and are respectively connected with the electromagnetic brake proportional valve 12 through a high-pressure oil supply pipe; the displacement of the brake cylinders of the two hydraulic brakes 11 is Q1, the displacement of oil liquid which can be released from the highest position to the lowest position of the hydraulic oil pressure in the energy accumulator 1 is Q2, in order to ensure the safety during braking in the driving process, when the energy accumulator 1 is selected, Q2 is more than or equal to 10 × Q1, namely after the hydraulic pump 15 stops working, a braking process for not less than 10 times can be provided, and the problem of braking failure caused by equipment failure is avoided; on the other hand, the braking acceleration a is calculated in real time according to the vehicle speed during braking, the braking acceleration a is ensured to be more than or equal to-3 m/s2, and the comfort degree of a driver during braking is fully ensured; the limit value of the braking deceleration is limited and considered in the control algorithm, the personnel comfort degree problem in the braking process is optimized, the performance of a braking system can be further improved, the vehicle speed measuring function is added, the segmentation is accurate, the braking performance is ensured, and the energy feedback efficiency is improved.
The working principle of the device is as follows: when a driver steps on the electronic brake pedal 10, the PLC 5 converts the analog quantity into a digital quantity, and divides the electronic brake pedal 10 into two strokes of S1 and S2; when the electronic brake pedal 10 is in the S1 stroke section, the PLC 5 enters a braking program control process of the permanent magnet synchronous motor 9, the PLC 5 sends a braking opening degree signal to the motor controller 7 through the CAN bus communication 6, the motor controller 7 receives the braking opening degree signal, a negative torque current value is calculated according to the interval of the opening degree, a braking torque is output to the permanent magnet synchronous motor 9 through a power output line 8, the permanent magnet synchronous motor 9 brakes and converts mechanical energy in the braking process into electric energy to feed back to a battery, and the purposes of energy feedback and braking are achieved; when the electronic brake pedal 10 is in the S2 stroke section, the PLC 5 enters a composite braking program control flow of braking of the permanent magnet synchronous motor 9 and braking of the hydraulic brake 11, the PLC 5 outputs a current value to the electromagnetic brake proportional valve 12, and high-pressure hydraulic oil in the energy accumulator 1 passes through the electromagnetic brake proportional valve 12 to the hydraulic brake 11 to form braking force under corresponding pressure; meanwhile, the PLC 5 sends a braking opening signal to the motor controller 7 through the CAN bus communication 6, the motor controller 7 receives the braking opening signal, a negative torque current value is calculated according to the interval of the opening, a braking torque is output to the permanent magnet synchronous motor 9 through the power output line 8, the permanent magnet synchronous motor 9 brakes and converts mechanical energy in the braking process into electric energy to feed back to the battery, and the purposes of energy feedback and braking are achieved.
The utility model discloses arresting gear is stepping on 10 initial sections of electronic brake pedal down, turn into electric energy repayment batteries through PMSM braking 9 and with the mechanical energy of braking in-process, increase the continuation of the journey mileage when practicing thrift the energy consumption, reduce hydraulic braking action time, and then avoid hydraulic brake 11 excessive wearing and tearing, reduce equipment failure rate, stepping on 10 back end of electronic brake pedal down, PMSM 9 braking and hydraulic brake 11 braking simultaneous workings, mechanical control's substitution has been realized, the control accuracy is improved, the convenience of control has been improved, ensure driving safety.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent variations made by using the contents of the specification and the drawings are included in the scope of the present invention.
Claims (4)
1. The utility model provides an electronic road sweeper arresting gear, includes and forms its characterized in that by high pressure fuel feeding pipe, oil tank, filter, hydraulic pump, prefill valve, energy storage ware, electromagnetic brake proportional valve, hydraulic brake, return oil pipe, control line, PLC, CAN communication line, machine controller, power take off line, permanent magnet synchronous motor and electron brake pedal: the oil tank is connected with filter, hydraulic pump, prefill valve, energy storage ware, electromagnetic brake proportional valve, hydraulic brake in proper order through high pressure fuel feeding pipe, and the electromagnetic brake proportional valve is connected with the oil tank through returning oil pipe, and the electromagnetic brake proportional valve passes through the control line and is connected with the PLC electricity, and PLC passes through the CAN communication line and is connected with motor controller, and motor controller passes through power take off line and is connected with PMSM, and electronic brake pedal is connected with PLC.
2. The electric sweeper brake apparatus according to claim 1, wherein: an overflow valve is arranged between the hydraulic pump and the liquid filling valve and is connected with the oil tank through a high-pressure oil supply pipe.
3. The electric sweeper brake apparatus according to claim 1, wherein: the hydraulic brakes are provided with a plurality of groups and are respectively connected with the electromagnetic brake proportional valve through high-pressure oil supply pipes.
4. The electric sweeper brake apparatus according to claim 1, wherein: the liquid filling valve is also provided with a bypass pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121112942.0U CN214742922U (en) | 2021-05-24 | 2021-05-24 | Brake device of electric road sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121112942.0U CN214742922U (en) | 2021-05-24 | 2021-05-24 | Brake device of electric road sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742922U true CN214742922U (en) | 2021-11-16 |
Family
ID=78624830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121112942.0U Active CN214742922U (en) | 2021-05-24 | 2021-05-24 | Brake device of electric road sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742922U (en) |
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2021
- 2021-05-24 CN CN202121112942.0U patent/CN214742922U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: Electric road sweeper brake Effective date of registration: 20220914 Granted publication date: 20211116 Pledgee: Bank of China Limited by Share Ltd. Tangshan City Jianshe Road branch Pledgor: TANGSHAN YATE SPECIAL AUTOMOBILE Co.,Ltd. Registration number: Y2022980015212 |