CN212222224U - Monorail crane car and hydraulic system thereof - Google Patents
Monorail crane car and hydraulic system thereof Download PDFInfo
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- CN212222224U CN212222224U CN202021923965.5U CN202021923965U CN212222224U CN 212222224 U CN212222224 U CN 212222224U CN 202021923965 U CN202021923965 U CN 202021923965U CN 212222224 U CN212222224 U CN 212222224U
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Abstract
The utility model discloses a monorail crane car and hydraulic system thereof, including the hydraulic pressure liquid supply subassembly that is used for providing hydraulic oil, be used for connecting the hydraulic pressure pipeline of each subassembly and be used for the locomotive braking or the driving subassembly that traveles, hydraulic pressure liquid supply subassembly passes through hydraulic pressure pipeline and driving subassembly intercommunication, the hydraulic pressure pipeline is equipped with the hydraulic pressure control valve that is used for the control circuit flow direction and is used for adjusting the hydraulic pressure accumulator of hydraulic pressure pipeline pressure. Through the technical scheme of the monorail crane locomotive hydraulic system provided by the application, the automatic control of removing parking brake, real-time parking brake and implementing emergency brake is realized, the automation degree is high, the safe operation of the locomotive is realized, the friction wheel ensures enough positive pressure through the effect of the compression oil cylinder, enough adhesive force is provided for the operation of the locomotive, and the walking of the monorail crane locomotive is realized.
Description
Technical Field
The utility model belongs to the technical field of single track loop wheel machine, specifically speaking relates to a single track loop wheel machine and hydraulic system thereof.
Background
The coal mine electric monorail crane is important transportation equipment in coal mine production, and the hoisting is preferably carried out through a hydraulic system due to the fact that the hoisting weight is usually large. The hydraulic control valve is an element for controlling the pressure, flow and direction of liquid, and comprises a main oil inlet (port P), a main oil return port (port T) and a working oil inlet or return port (port A or port B). The parking system and the hoisting system of the hydraulic system of the traditional monorail crane are separated, and the parking brake is usually controlled manually, so that the requirement of automation is not met, and the potential safety hazard of incomplete braking exists.
Accordingly, further developments and improvements are still needed in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, a monorail crane and a hydraulic system thereof are proposed. The utility model provides a following technical scheme:
the hydraulic system of the monorail crane comprises a hydraulic liquid supply assembly for providing hydraulic oil, a hydraulic pipeline for connecting the assemblies and a traveling crane assembly for braking or traveling of the locomotive, wherein the hydraulic liquid supply assembly is communicated with the traveling crane assembly through the hydraulic pipeline, and a hydraulic control valve for controlling the flowing direction of an oil way and a hydraulic energy accumulator for adjusting the pressure of the hydraulic pipeline are arranged on the hydraulic pipeline.
Furthermore, the hydraulic control valve comprises a first hydraulic control valve and a second hydraulic control valve, a port P of the first hydraulic control valve is connected with the oil outlet end of the hydraulic liquid supply assembly, a port A of the first hydraulic control valve is connected with a port P of the second hydraulic control valve, a port A of the second hydraulic control valve is connected with the traveling crane assembly, and a port T of the second hydraulic control valve is connected with the oil return end of the hydraulic liquid supply assembly.
Furthermore, the hydraulic control valve also comprises a third hydraulic control valve and a fourth hydraulic control valve, wherein a port B of the first hydraulic control valve is connected with a port P of the third hydraulic control valve, a port A of the third hydraulic control valve is connected with a port P of the fourth hydraulic control valve, a port A of the fourth hydraulic control valve is connected with the traveling crane assembly, and a port T of the fourth hydraulic control valve is connected with an oil return end of the hydraulic liquid supply assembly.
The hydraulic control system is characterized by further comprising a hoisting hydraulic assembly for hoisting the locomotive, the hydraulic liquid supply assembly is communicated with the hoisting hydraulic assembly through a hydraulic pipeline, a port B of a third hydraulic control valve is connected with the hoisting hydraulic assembly, and a port T of the third hydraulic control valve is connected with an oil return end of the hydraulic liquid supply assembly.
Furthermore, the hydraulic accumulator is arranged on a hydraulic pipeline between the first hydraulic control valve and the second hydraulic control valve, and a first pressure sensor for detecting the pressure of the section of hydraulic pipeline is further arranged on the hydraulic pipeline between the first hydraulic control valve and the second hydraulic control valve.
Furthermore, a fifth hydraulic control valve used for adjusting the pressure of a pipeline connected with the fourth hydraulic control valve is arranged between the oil inlet pipeline and the oil return pipeline of the fourth hydraulic control valve, and a second pressure sensor is arranged on a hydraulic pipeline corresponding to the fifth hydraulic control valve.
Furthermore, the traveling crane assembly comprises a spring brake for pressing the track and a pressing oil cylinder for pressing a locomotive traveling wheel, the spring brake is connected with the port A of the second hydraulic control valve, and the pressing oil cylinder is connected with the port A of the fourth hydraulic control valve.
Furthermore, the driving assembly comprises a plurality of spring brakes, each spring brake is connected with the port A of the second hydraulic control valve, and each pressing oil cylinder is connected with the port A of the fourth hydraulic control valve.
Furthermore, the hoisting hydraulic assembly comprises a hoisting hydraulic control valve and a hoisting hydraulic motor, a port P of the hoisting hydraulic control valve is connected with a port B of the third hydraulic control valve, a port T of the hoisting hydraulic control valve is connected with an oil return end of an oil tank, and a port A and a port B of the hoisting hydraulic control valve are connected with an inlet and an outlet of the hoisting hydraulic motor.
A monorail crane vehicle comprises a monorail crane vehicle hydraulic system.
Has the advantages that:
through the technical scheme of the monorail crane locomotive hydraulic system provided by the application, the automatic control of removing parking brake, real-time parking brake and implementing emergency brake is realized, the automation degree is high, the safe operation of the locomotive is realized, the friction wheel ensures enough positive pressure through the effect of the compression oil cylinder, enough adhesive force is provided for the operation of the locomotive, and the walking of the monorail crane locomotive is realized.
Drawings
Fig. 1 is a schematic view of a connection structure of a hydraulic system of a monorail crane in an embodiment of the present invention.
In the drawings: 1-a first hydraulic control valve; 2-a second hydraulic control valve; 3-a third hydraulic control valve; 4-a fourth hydraulic control valve; 5-a fifth hydraulic control valve; 6-lifting the hydraulic control valve; 7-an oil tank; 8-a hydraulic pump; 9-hoisting the hydraulic motor; 10-a hydraulic accumulator; 11-a first pressure sensor; 12-a second pressure sensor; 13-a spring brake; and 14, pressing the oil cylinder.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustration and not for limitation of the present invention.
Example 1
As shown in figure 1, the hydraulic system of the monorail crane comprises a hydraulic liquid supply assembly for supplying hydraulic oil, a hydraulic pipeline for connecting the assemblies and a travelling crane assembly for braking or travelling of the locomotive, wherein the hydraulic liquid supply assembly is communicated with the travelling crane assembly through the hydraulic pipeline, and a hydraulic control valve for controlling the flowing direction of an oil way and a hydraulic accumulator 10 for regulating the pressure of the hydraulic pipeline are arranged on the hydraulic pipeline.
Furthermore, the hydraulic control valve comprises a first hydraulic control valve 1 and a second hydraulic control valve 2, a port P of the first hydraulic control valve 1 is connected with an oil outlet end of the hydraulic liquid supply assembly, a port A of the first hydraulic control valve 1 is connected with a port P of the second hydraulic control valve 2, a port A of the second hydraulic control valve 2 is connected with a traveling crane assembly, and a port T of the second hydraulic control valve 2 is connected with an oil return end of the hydraulic liquid supply assembly.
Furthermore, the hydraulic control valve also comprises a third hydraulic control valve 3 and a fourth hydraulic control valve 4, a port B of the first hydraulic control valve 1 is connected with a port P of the third hydraulic control valve 3, a port A of the third hydraulic control valve 3 is connected with a port P of the fourth hydraulic control valve 4, a port A of the fourth hydraulic control valve 4 is connected with a traveling crane assembly, and a port T of the fourth hydraulic control valve 4 is connected with an oil return end of a hydraulic liquid supply assembly.
Furthermore, the hydraulic control system also comprises a hoisting hydraulic assembly for hoisting the locomotive, the hydraulic liquid supply assembly is communicated with the hoisting hydraulic assembly through a hydraulic pipeline, a port B of the third hydraulic control valve 3 is connected with the hoisting hydraulic assembly, and a port T of the third hydraulic control valve 3 is connected with an oil return end of the hydraulic liquid supply assembly.
Further, the hydraulic accumulator 10 is disposed on a hydraulic pipeline between the first hydraulic control valve 1 and the second hydraulic control valve 2, and a first pressure sensor 11 for detecting the pressure of the hydraulic pipeline is further disposed on the hydraulic pipeline between the first hydraulic control valve 1 and the second hydraulic control valve 2.
Further, a fifth hydraulic control valve 5 for adjusting the pressure of a pipeline connected with the fourth hydraulic control valve 4 is further arranged between the oil inlet pipeline and the oil return pipeline of the fourth hydraulic control valve 4, and a second pressure sensor 12 is arranged on a hydraulic pipeline corresponding to the fifth hydraulic control valve 5.
Further, the travelling assembly comprises a spring brake 13 for pressing the track and a pressing oil cylinder 14 for pressing the travelling wheels of the locomotive, the spring brake 13 is connected with the port A of the second hydraulic control valve 2, and the pressing oil cylinder 14 is connected with the port A of the fourth hydraulic control valve 4. Through the action of the pressing oil cylinder 14, the friction wheel ensures enough positive pressure, so that enough adhesive force is provided for the running of the locomotive, and the running of the monorail crane is realized.
Further, the traveling crane assembly comprises a plurality of spring brakes 13, each spring brake 13 is connected with the port A of the second hydraulic control valve 2, and each hold-down cylinder 14 is connected with the port A of the fourth hydraulic control valve 4. Through setting up a plurality of parallelly connected driving subassemblies, strengthen the compressing tightly or the braking effect of driving or parking in-process, ensure the production security of driving or parking process.
Furthermore, the hoisting hydraulic assembly comprises a hoisting hydraulic control valve 6 and a hoisting hydraulic motor 9, a port P of the hoisting hydraulic control valve 6 is connected with a port B of the third hydraulic control valve 3, a port T of the hoisting hydraulic control valve 6 is connected with an oil return end of an oil tank 7, and the port A and the port B of the hoisting hydraulic control valve 6 are connected with an inlet and an outlet of the hoisting hydraulic motor 9. The lifting hydraulic assembly is matched with the traveling crane assembly, a set of hydraulic oil system is shared, hydraulic resources are fully utilized, unified regulation and control are more accurate, the number of accessories of the locomotive can be reduced by the aid of the common hydraulic system, and the whole locomotive is compact in structure.
Further, the hydraulic liquid supply assembly comprises an oil tank 7 with two ports, namely an oil outlet end and an oil return end, and a hydraulic pump 8 arranged at the oil outlet end of the oil tank 7.
The following examples of the system control process in different operating states are given:
when the system is in an initial state, the hydraulic pump 8 is in a non-working state, the left oil way of the first hydraulic control valve 1 is opened, the right oil way of the second hydraulic control valve 2 is opened, the middle oil way of the third hydraulic control valve 3 is opened, the right oil way of the fourth hydraulic control valve 4 is opened, the left oil way of the fifth hydraulic control valve 5 is opened, the spring elasticity of the spring brake 13 is the dominant force, the spring brake 13 is in a braking state, the spring is released for a stroke, so that the track is pressed to generate braking force, the right oil way of the fourth hydraulic control valve 4 is opened, the left oil way of the fifth hydraulic control valve 5 is opened, and the pressing oil.
When the system works, the hydraulic pump 8 works, the first pressure sensor 11 is in signal connection with the control system, the pressure signal of the hydraulic pipeline is fed back to the control system, the hydraulic accumulator 10 is preset with set pressure, when the pressure value of the hydraulic accumulator 10 is smaller than the set pressure value, the right oil way of the first hydraulic control valve 1 is opened, the hydraulic oil pump presses hydraulic oil in the oil tank into the hydraulic accumulator 10 until the pressure value of the hydraulic accumulator 10 detected by the first pressure sensor 11 reaches the set pressure value, the first pressure sensor 11 sends the pressure signal to the control system, and the control system controls the left oil way of the first hydraulic control valve 1 to be opened and reset. After entering through the first hydraulic control valve 1P port, the hydraulic oil output by the hydraulic oil pump enters through the first hydraulic control valve 1B port into the third hydraulic control valve 3P port, and then returns to the oil return end of the oil tank 7 through the third hydraulic control valve 3T port.
When the locomotive starts, the compression oil cylinder 14 needs to be compressed, and the spring brake 13 needs to release braking, so that the left oil path of the second hydraulic control valve 2 is opened, the hydraulic oil stored in the hydraulic energy accumulator 10 enters from the port P of the second hydraulic control valve 2 and enters the spring brake 13 through the port a of the second hydraulic control valve 2, and the hydraulic oil compresses the spring in the spring brake 13 to lift the brake rod, so that the braking state of the locomotive is released. Meanwhile, the left oil way of the third hydraulic control valve 3 is opened, hydraulic oil is pressed in from the port P of the first hydraulic control valve 1 by the hydraulic pump 8, is pressed in from the port P of the third hydraulic control valve 3 through the port B of the first hydraulic control valve 1, is pressed in from the port P of the fourth hydraulic control valve 4 through the port A of the third hydraulic control valve 3, the left oil way of the fourth hydraulic control valve 4 is opened, and the hydraulic oil enters a hydraulic oil cylinder through the port A of the fourth hydraulic control valve 4, so that the locomotive travelling wheel compression effect is realized, and the travelling adhesive force can be provided. Meanwhile, the second pressure sensor 12 detects the pressure of the pipeline in the loop in real time and reports the pressure to the control system, and according to the requirement of the compression oil cylinder 14, the control system performs pressurization or pressure relief operation on the loop by adjusting the fifth hydraulic control valve 5, so that the compression balance pressure required by the compression system is automatically adjusted in real time.
The emergency stop brake is the stop brake implemented when the locomotive meets emergency in the running process, when the emergency stop is needed, the right oil way of the second hydraulic control valve 2 is opened, and the hydraulic oil returns to the oil return end of the oil tank 7 from the spring brake 13 through the T port of the second hydraulic control valve 2.
When the whole machine is parked, the left oil way of the first hydraulic control valve 1 is opened, the right oil way of the second hydraulic control valve 2 is opened, the middle oil way of the third hydraulic control valve 3 is opened, the right oil way of the fourth hydraulic control valve 4 is opened, the left oil way of the fifth hydraulic control valve 5 is opened, and meanwhile, the hydraulic pump 8 stops working. The left oil way of the first hydraulic control valve 1 is opened, the oil tank 7 does not supply oil for the pipeline of the second hydraulic control valve 2 any more, the right oil way of the second hydraulic control valve 2 is opened, the hydraulic oil in the spring brake 13 returns to the oil return end of the oil tank 7 through the T port of the second hydraulic control valve 2, the hydraulic pressing force of the spring brake 13 is relieved, the spring is released for stroke, so that the rail is pressed to generate braking force, the right oil way of the fourth hydraulic control valve 4 is opened, the left oil way of the fifth hydraulic control valve 5 is opened, the hydraulic oil in the pressing oil cylinder 14 returns to the oil return end of the oil tank 7 through the T port of the fourth hydraulic control valve 4, the pressing oil cylinder 14 is in a non-oil.
When the hydraulic component needs to be lifted to work, the hydraulic pump 8 works, the left oil way of the first hydraulic control valve 1 is opened, the right oil way of the second hydraulic control valve 2 is opened, the spring brake 13 is in a braking state, the right oil way of the third hydraulic control valve 3 is opened, the right oil way of the fourth hydraulic control valve 4 is opened, the left oil way of the fifth hydraulic control valve 5 is opened, and the pressing oil cylinder 14 is in a non-oil supply state. The hydraulic pump 8 presses hydraulic oil into a port P of the first hydraulic control valve 1, enters a port P of the third hydraulic control valve 3 through a port B of the first hydraulic control valve 1, flows into a port P of the lifting hydraulic control valve 6 through a port B of the third hydraulic control valve 3, completes a hydraulic oil circuit loop through a port A and a port B of the lifting hydraulic control valve 6, and returns to an oil return end of the oil tank 7 through a port T of the lifting hydraulic control valve 6.
Example 2
A monorail crane vehicle comprises a monorail crane vehicle hydraulic system, and the monorail crane vehicle hydraulic system adopts the technical scheme of the monorail crane vehicle hydraulic system in embodiment 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.
Claims (10)
1. The hydraulic system of the monorail crane is characterized by comprising a hydraulic liquid supply assembly for providing hydraulic oil, a hydraulic pipeline for connecting the assemblies and a traveling assembly for braking or traveling of a locomotive, wherein the hydraulic liquid supply assembly is communicated with the traveling assembly through the hydraulic pipeline, and a hydraulic control valve for controlling the flowing direction of an oil way and a hydraulic energy accumulator for adjusting the pressure of the hydraulic pipeline are arranged on the hydraulic pipeline.
2. The hydraulic system of a monorail crane as defined in claim 1, wherein said hydraulic control valves comprise a first hydraulic control valve and a second hydraulic control valve, the port P of the first hydraulic control valve is connected to the oil outlet end of the hydraulic supply assembly, the port a of the first hydraulic control valve is connected to the port P of the second hydraulic control valve, the port a of the second hydraulic control valve is connected to the travelling crane assembly, and the port T of the second hydraulic control valve is connected to the oil return end of the hydraulic supply assembly.
3. The hydraulic system of a monorail crane as defined in claim 2, wherein said hydraulic control valves further comprise a third hydraulic control valve and a fourth hydraulic control valve, port B of the first hydraulic control valve is connected to port P of the third hydraulic control valve, port a of the third hydraulic control valve is connected to port P of the fourth hydraulic control valve, port a of the fourth hydraulic control valve is connected to the travelling crane assembly, and port T of the fourth hydraulic control valve is connected to the return end of the hydraulic supply assembly.
4. The hydraulic system of a monorail crane vehicle as defined in claim 3, further comprising a hoisting hydraulic assembly for hoisting the vehicle, wherein said hydraulic fluid supply assembly is connected to the hoisting hydraulic assembly through a hydraulic pipeline, the port B of the third hydraulic control valve is connected to the hoisting hydraulic assembly, and the port T of the third hydraulic control valve is connected to the oil return end of the hydraulic fluid supply assembly.
5. The monorail crane hydraulic system of claim 2, wherein the hydraulic accumulator is disposed on the hydraulic line between the first hydraulic control valve and the second hydraulic control valve, and a first pressure sensor for detecting the pressure of the hydraulic line is disposed on the hydraulic line between the first hydraulic control valve and the second hydraulic control valve.
6. The hydraulic system of a monorail crane as defined in claim 3, wherein a fifth hydraulic control valve for adjusting the pressure of a line connected to the fourth hydraulic control valve is further provided between the oil inlet line and the oil return line of the fourth hydraulic control valve, and a second pressure sensor is provided on a hydraulic line corresponding to the fifth hydraulic control valve.
7. The monorail crane hydraulic system of claim 3, wherein the trolley assembly comprises a spring brake for pressing against the rail and a hold-down cylinder for pressing against the road wheels of the locomotive, the spring brake being connected to port A of the second hydraulic control valve, the hold-down cylinder being connected to port A of the fourth hydraulic control valve.
8. A monorail crane hydraulic system as defined in claim 7, wherein said travelling assembly includes a plurality of spring brakes, each spring brake being connected to port a of said second hydraulic control valve, and each hold-down cylinder being connected to port a of said fourth hydraulic control valve.
9. The hydraulic system of the monorail crane vehicle as defined in claim 4, wherein the hoisting hydraulic assembly comprises a hoisting hydraulic control valve and a hoisting hydraulic motor, the port P of the hoisting hydraulic control valve is connected with the port B of the third hydraulic control valve, the port T of the hoisting hydraulic control valve is connected with the oil return end of an oil tank, and the port A and the port B of the hoisting hydraulic control valve are connected with the inlet and the outlet of the hoisting hydraulic motor.
10. A monorail hoist vehicle comprising a monorail hoist hydraulic system as defined in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021923965.5U CN212222224U (en) | 2020-09-04 | 2020-09-04 | Monorail crane car and hydraulic system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021923965.5U CN212222224U (en) | 2020-09-04 | 2020-09-04 | Monorail crane car and hydraulic system thereof |
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| CN212222224U true CN212222224U (en) | 2020-12-25 |
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| CN202021923965.5U Active CN212222224U (en) | 2020-09-04 | 2020-09-04 | Monorail crane car and hydraulic system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682961A (en) * | 2021-09-06 | 2021-11-23 | 江苏浩吉矿用装备有限公司 | Small-size single track hangs open hydraulic system |
| CN114810875A (en) * | 2022-05-24 | 2022-07-29 | 徐州重型机械有限公司 | Multi-mode air brake system and crane |
-
2020
- 2020-09-04 CN CN202021923965.5U patent/CN212222224U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682961A (en) * | 2021-09-06 | 2021-11-23 | 江苏浩吉矿用装备有限公司 | Small-size single track hangs open hydraulic system |
| CN113682961B (en) * | 2021-09-06 | 2024-01-26 | 江苏浩吉矿用装备有限公司 | Small monorail crane open type hydraulic system |
| CN114810875A (en) * | 2022-05-24 | 2022-07-29 | 徐州重型机械有限公司 | Multi-mode air brake system and crane |
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Address after: 271000 No. 3508, peitianmen street, high tech Zone, Tai'an City, Shandong Province Patentee after: Shandong Energy Equipment Group Taizhuang Engineering Equipment Manufacturing Co.,Ltd. Address before: 271000 No. 3508, peitianmen street, high tech Zone, Tai'an City, Shandong Province Patentee before: SHANDONG ENERGY HEAVY EQUIPMENT MANUFACTURING GROUP TAIZHUANG ENGINEERING EQUIPMENT MANUFACTURING Co.,Ltd. |