CN210970649U - Driving system of transport trolley - Google Patents
Driving system of transport trolley Download PDFInfo
- Publication number
- CN210970649U CN210970649U CN201921804221.9U CN201921804221U CN210970649U CN 210970649 U CN210970649 U CN 210970649U CN 201921804221 U CN201921804221 U CN 201921804221U CN 210970649 U CN210970649 U CN 210970649U
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- Prior art keywords
- hydraulic
- pressure
- drive system
- motor
- accumulator
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- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 230000001808 coupling Effects 0.000 claims abstract description 20
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 230000001702 transmitter Effects 0.000 claims description 5
- 230000000875 corresponding Effects 0.000 claims description 4
- 230000000087 stabilizing Effects 0.000 claims description 4
- 238000004146 energy storage Methods 0.000 abstract description 4
- 230000003014 reinforcing Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 230000002035 prolonged Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003137 locomotive Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Abstract
The utility model relates to the technical field of transport trolleys, in particular to a drive system of a transport trolley; the adopted technical scheme is as follows: the utility model provides a travelling bogie actuating system, includes motor drive system, hydraulic auxiliary system includes hydraulic motor, the motor drive system output passes through coupling mechanism and links to each other with the hydraulic motor output, hydraulic motor passes through three-position four-way solenoid valve and links to each other with high pressure energy storage ware, low pressure energy storage ware respectively, the solenoid valve is used for controlling the flow direction of hydraulic oil and the flow of hydraulic oil. The utility model discloses when reinforcing travelling bogie power performance, effectively improve its power and continue to go mileage and life, can show the utilization ratio that improves the electric energy.
Description
Technical Field
The utility model relates to a travelling bogie technical field, concretely relates to travelling bogie actuating system.
Background
In the automatic transfer process of goods, an automatic transport trolley, such as logistics storage, an automatic production line and the like, is required. The existing automatic transport trolley is driven by a motor, and the transport trolley needs to be started, stopped, accelerated and braked frequently when in use. When the transport trolley starts or accelerates, the current impact is caused by large starting torque, so that the service life of the power supply is shortened; when the trolley is braked, the brake structure is seriously abraded, and the energy waste is serious. Namely, the existing power supply of the transport trolley has short driving range, short service life and low electric energy utilization rate.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that the distance is short, life is short, electric energy utilization is low continuously driven to current travelling bogie power, the utility model provides a travelling bogie actuating system when reinforcing travelling bogie dynamic performance, effectively improves its power and continuously drives distance and life, can show the utilization ratio that improves the electric energy.
The utility model discloses a following technical scheme realizes:
the utility model provides a travelling bogie actuating system, includes motor drive system, hydraulic auxiliary system includes hydraulic motor, the motor drive system output passes through coupling mechanism and links to each other with the hydraulic motor output, hydraulic motor passes through three-position four-way solenoid valve and links to each other with high pressure energy storage ware, low pressure energy storage ware respectively, the solenoid valve is used for controlling the flow direction of hydraulic oil and the flow of hydraulic oil.
The utility model discloses when using, link to each other travelling bogie's wheel and coupling mechanism. When the trolley starts, the flow direction of hydraulic oil is controlled through the electromagnetic valve, the direction of the hydraulic oil flowing through the hydraulic motor is consistent with the rotation direction of the wheels, all power is provided by the hydraulic auxiliary system, current impact caused when the trolley is started can be effectively avoided, and the service life of the power supply is prolonged.
Similarly, when the trolley accelerates, the high-pressure oil released by the high-pressure accumulator drives the hydraulic motor to rotate, so that the acceleration is assisted. When the trolley is braked, the electromagnetic valve is controlled to change the direction, so that the direction of hydraulic oil flowing through the hydraulic motor is opposite to the rotation direction of the wheels, namely, the hydraulic motor is used for recovering energy, the kinetic energy of the trolley is converted into hydraulic energy to be stored in the high-pressure energy accumulator, and meanwhile, a certain braking torque is provided, so that the abrasion of the braking structure of the transport trolley is reduced.
Preferably, a proportional pressure reducing valve is connected between the high-pressure accumulator and the electromagnetic valve and used for stabilizing the hydraulic pressure output by the high-pressure accumulator so as to ensure that the transport trolley runs stably.
Preferably, an overflow valve is connected between the high-pressure accumulator and the low-pressure accumulator and used for protecting the hydraulic auxiliary system and preventing the pressure in the hydraulic auxiliary system from being too high.
Preferably, a pressure transmitter is arranged between the proportional pressure reducing valve and the electromagnetic valve so as to monitor the pressure input into the high-pressure accumulator or the pressure output by the high-pressure accumulator in real time.
Preferably, the connecting ends of the high-pressure energy accumulator and the low-pressure energy accumulator are respectively provided with a manual stop valve. So that the hydraulic auxiliary system can be maintained when the system is in failure.
Furthermore, the motor driving systems are provided with two groups, the hydraulic motors are connected in parallel, and the two motor driving systems are respectively connected with the corresponding hydraulic motors through the coupling mechanisms. The motor driving systems are respectively controlled to correct the deviation of the transport trolley, so that the transport trolley is ensured to move along a straight line.
As a specific embodiment of the coupling mechanism, the coupling mechanism is a planetary gear mechanism.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the output end of the motor driving system is connected with the output end of the hydraulic motor through the coupling mechanism, and the hydraulic motor is respectively connected with the high-pressure energy accumulator and the low-pressure energy accumulator through the three-position four-way electromagnetic valve. The connection and the reversing of the hydraulic motor and the energy accumulator are controlled by the electromagnetic valve, when the trolley starts, the hydraulic auxiliary system provides all power, so that the current impact caused when the trolley is started can be effectively avoided, and the service life of a power supply is prolonged; when the trolley accelerates, the high-pressure oil released by the high-pressure accumulator drives the hydraulic motor to rotate, so as to assist in acceleration; when the trolley is braked, the electromagnetic valve is controlled to change direction, namely, energy is recovered through the hydraulic motor, kinetic energy of the trolley is converted into hydraulic energy to be stored in the high-pressure energy accumulator, a certain braking torque is provided, and abrasion of a braking structure of the transport trolley is reduced. Therefore the utility model discloses when reinforcing travelling bogie power performance, effectively improve the travelling distance of travelling bogie power and life, can show the utilization ratio that improves the electric energy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic view of the present invention.
Reference numbers and corresponding part names in the drawings:
1-motor driving system, 2-hydraulic auxiliary system, 3-hydraulic motor, 4-coupling mechanism, 5-electromagnetic valve, 6-high pressure accumulator, 7-low pressure accumulator, 8-proportional pressure reducing valve, 9-overflow valve, 10-pressure transmitter, 11-manual stop valve and 12-wheel.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
A driving system of a transport trolley comprises a motor driving system 1 and a hydraulic auxiliary system 2, wherein the hydraulic auxiliary system 2 comprises a hydraulic motor 3. The output end of the motor driving system 1 is connected with the output end of the hydraulic motor 3 through a coupling mechanism 4, specifically, the coupling mechanism 4 can be a rotating speed coupling mechanism or a torque coupling mechanism, so that the motor driving system 1 and the hydraulic auxiliary system 2 are simultaneously in transmission connection with wheels or a driving shaft of the transport trolley.
The hydraulic motor 3 is respectively connected with the high-pressure energy accumulator 6 and the low-pressure energy accumulator 7 through the three-position four-way electromagnetic valve 5, and it can be understood that two interfaces of the hydraulic motor 3 are respectively connected with one of two interfaces on the same side of the electromagnetic valve 5, and the interfaces of the high-pressure energy accumulator 6 and the low-pressure energy accumulator 7 are respectively connected with one of two interfaces on the other side of the electromagnetic valve 5.
By reversing the solenoid valve 5, three connection states of the hydraulic motor 3 can be realized: firstly, hydraulic oil in the high-pressure energy accumulator 6 flows to the hydraulic motor 3 and then flows to the low-pressure energy accumulator 7; secondly, all interfaces are closed; thirdly, hydraulic oil of the low-pressure energy accumulator 7 flows to the hydraulic motor 3 and then flows to the high-pressure energy accumulator 6; namely, the electromagnetic valve 5 is used for controlling the flow direction of the hydraulic oil and the flow of the hydraulic oil, and the low-pressure accumulator 7 is used for supplying the hydraulic oil to the hydraulic auxiliary system 2 and stabilizing the pressure of the system.
In the embodiment, the flow direction and the flow of the hydraulic oil of the hydraulic auxiliary system 2 are realized through the three-position four-way electromagnetic valve, and the oil path has a simple structure; only one electromagnetic valve 5 needs to be controlled, so that the control is simple, the control is reliable and the error is not easy to occur; in addition, the single electromagnetic valve 5 is simple to maintain and reliable in action, and the reliability and the maintainability of the hydraulic auxiliary system 2 can be ensured.
The wheels 12 of the wagon are connected to the coupling mechanism 4 in use. When the trolley starts, the flow direction of hydraulic oil is controlled through the electromagnetic valve 5, so that the direction of the hydraulic oil flowing through the hydraulic motor 3 is consistent with the rotation direction of the wheels 12, namely the hydraulic motor 3 is used as the hydraulic motor at the moment, the hydraulic auxiliary system 2 provides all power to drive the trolley, current impact on a power supply when the trolley is started can be effectively avoided, and the service life of the power supply is prolonged. Similarly, when the trolley accelerates, the high-pressure oil released by the high-pressure accumulator 6 drives the hydraulic motor 3 to rotate, so as to assist the acceleration.
When the trolley is braked, the control electromagnetic valve 5 is reversed, so that the hydraulic oil flows through the hydraulic motor 3 in the direction opposite to the rotation direction of the wheels 12. At the moment, the hydraulic motor 3 is used as a hydraulic pump to charge the high-pressure energy accumulator 6, the hydraulic motor 3 converts the kinetic energy of the trolley into hydraulic energy to be stored in the high-pressure energy accumulator 6 and the low-pressure energy accumulator 7, and the energy is recovered through the hydraulic motor 3; and meanwhile, a certain braking torque is provided so as to reduce the abrasion of the braking structure of the transport trolley.
Preferably, a proportional pressure reducing valve 8 is connected between the high-pressure accumulator 6 and the electromagnetic valve 5, and the proportional pressure reducing valve 8 is used for stabilizing the hydraulic pressure output by the high-pressure accumulator 6. It can be known that, proportional pressure reducing valve 8 not only can reduce the hydraulic pressure of high pressure accumulator 6 output, can also real-time regulation output pressure's size to ensure that the travelling bogie traveles steadily.
Preferably, an overflow valve 9 is connected between the high-pressure accumulator 6 and the low-pressure accumulator 7, and the overflow valve 9 is used for protecting the hydraulic auxiliary system. That is, the relief valve 9 is used as a safety valve, and can relieve the pressure in the pipe between the high-pressure accumulator 6 and the solenoid valve 5 and the pipe between the low-pressure accumulator 7 and the solenoid valve 5, thereby preventing the pressure in the hydraulic assist system 2 from being excessive.
Preferably, a pressure transmitter 10 is arranged between the proportional pressure reducing valve 8 and the electromagnetic valve 5. The pressure input into the high-pressure energy accumulator 6 or the pressure output by the high-pressure energy accumulator 6 after being decompressed by the proportional pressure reducing valve 8 is monitored in real time, and data support is provided for the control of the electromagnetic valve 5; the reading of the pressure transmitter 10 also makes it possible to detect a malfunction of the hydraulic assistance system 2 in time and to perform maintenance on the hydraulic assistance system 2 in time.
Preferably, the connecting ends of the high-pressure energy accumulator 6 and the low-pressure energy accumulator 7 are respectively provided with a manual stop valve 11. That is, the high pressure accumulator 6 and the low pressure accumulator 7 may be manually shut off to allow maintenance of the hydraulic assist system in the event of a system failure.
Example 2
Based on embodiment 1, the motor driving systems 1 are provided with two groups, the hydraulic motors 3 are connected in parallel, and the two motor driving systems 1 are respectively connected with the corresponding hydraulic motors 3 through the coupling mechanisms 4.
It can be understood that the coupling means 4 are likewise provided in two groups; in use, the coupling mechanism 4 is in driving connection with the wheels 12 at the two ends of the drive shaft of the transport trolley respectively. The motor driving systems 1 at two ends of a driving shaft of the transport trolley are respectively controlled to correct the deviation of the transport trolley and ensure that the transport trolley moves along a straight line; the device is suitable for occasions needing the transport trolley to move along a straight line, such as cargo transfer between two points in storage, wheel pair transfer during locomotive maintenance and the like.
The hydraulic motor 3 is arranged in a parallel connection mode, so that the hydraulic auxiliary system 2 can be simplified; on the other hand, the pressure obtained by the two hydraulic motors 3 can be ensured to be consistent, and the transportation trolley can further move along a straight line.
As a specific embodiment of the coupling mechanism 4, the coupling mechanism 4 is a planetary gear mechanism, and has a simple structure, a small volume and convenience in maintenance.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is 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 in the scope of the present invention.
Claims (7)
1. The utility model provides a travelling bogie actuating system, includes motor drive system (1), hydraulic auxiliary system (2) include hydraulic motor (3), motor drive system (1) output links to each other its characterized in that through coupling mechanism (4) and hydraulic motor (3) output: the hydraulic motor (3) is respectively connected with the high-pressure energy accumulator (6) and the low-pressure energy accumulator (7) through a three-position four-way electromagnetic valve (5), and the electromagnetic valve (5) is used for controlling the flow direction of hydraulic oil and the flow of the hydraulic oil.
2. The transport cart drive system of claim 1, wherein: and a proportional pressure reducing valve (8) is connected between the high-pressure accumulator (6) and the electromagnetic valve (5), and the proportional pressure reducing valve (8) is used for stabilizing the hydraulic pressure output by the high-pressure accumulator (6).
3. The transport cart drive system of claim 2, wherein: an overflow valve (9) is connected between the high-pressure energy accumulator (6) and the low-pressure energy accumulator (7), and the overflow valve (9) is used for protecting the hydraulic auxiliary system (2).
4. The transport cart drive system of claim 3, wherein: and a pressure transmitter (10) is arranged between the proportional pressure reducing valve (8) and the electromagnetic valve (5).
5. The transport cart drive system of claim 4, wherein: and the connecting ends of the high-pressure energy accumulator (6) and the low-pressure energy accumulator (7) are respectively provided with a manual stop valve (11).
6. The transport cart drive system of claim 5, wherein: the motor driving systems (1) are provided with two groups, the hydraulic motors (3) are connected in parallel, and the two motor driving systems (1) are connected with the corresponding hydraulic motors (3) through coupling mechanisms (4) respectively.
7. The transport cart drive system of claim 1, wherein: the coupling mechanism (4) is a planetary gear mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921804221.9U CN210970649U (en) | 2019-10-24 | 2019-10-24 | Driving system of transport trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921804221.9U CN210970649U (en) | 2019-10-24 | 2019-10-24 | Driving system of transport trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210970649U true CN210970649U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921804221.9U Active CN210970649U (en) | 2019-10-24 | 2019-10-24 | Driving system of transport trolley |
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| CN (1) | CN210970649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763791A (en) * | 2020-12-23 | 2021-05-07 | 潍柴动力股份有限公司 | Current detection method and device for series electromagnetic valve |
-
2019
- 2019-10-24 CN CN201921804221.9U patent/CN210970649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763791A (en) * | 2020-12-23 | 2021-05-07 | 潍柴动力股份有限公司 | Current detection method and device for series electromagnetic valve |
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