CN210218260U - Hydraulic walking control device of car puller - Google Patents
Hydraulic walking control device of car puller Download PDFInfo
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- CN210218260U CN210218260U CN201920829605.XU CN201920829605U CN210218260U CN 210218260 U CN210218260 U CN 210218260U CN 201920829605 U CN201920829605 U CN 201920829605U CN 210218260 U CN210218260 U CN 210218260U
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Abstract
The embodiment of the utility model discloses line controlling means is walked to car puller hydraulic pressure, include: the hydraulic motor can provide a power source for the running of the car puller; at least one controller, each controller capable of independently controlling and adjusting the speed of one hydraulic motor; the proportional valve can adjust the walking speed of the car puller by controlling the flow output of the oil pump; an angle sensor capable of forming a closed loop control circuit with the controller; the electric control element can control the start and stop of the hydraulic motor. The utility model does not need to carry out a large amount of frequency converter parameter adjustment and complex motor dynamic optimization, and the debugging is very simple; meanwhile, the power source is from the hydraulic motor, and no mechanical rigid connection exists, so that the system is very smooth in starting and stopping and has no mechanical impact.
Description
Technical Field
The utility model relates to a material mechanical equipment bucket wheel machine equipment field especially relates to a car puller hydraulic pressure walks capable controlling means.
Background
The tippler system is a very specialized bulk material unloading system, and is used for unloading bulk materials loaded by trains. The train puller is the core of the whole system and is used for towing a whole train of heavy trains, towing a single train to a tipper for positioning, towing empty trains after dumping to a transfer platform for positioning and the like. The current commonly used control mode of the car puller is a variable frequency driving mode, and mainly comprises a frequency converter, a driving motor, a speed reducer, a brake and the like. The mechanical connection is rigid, and the mechanical impact is large when the equipment is started and stopped. More power cables need to be laid on the variable frequency motor, and harmonic waves generated by the frequency converter can generate certain probability interference on a weak current control system. Meanwhile, the frequency converter, the motor and the speed reducer are basically imported brands, and are expensive and high in cost.
Disclosure of Invention
Based on the technical scheme, in order to solve the problems of large mechanical impact, high cost and the like of the traditional control technology of the car puller, the hydraulic traveling control device of the car puller is particularly provided, and has the advantages of simple and convenient control mode, small pollution to a power grid, low energy consumption, small impact on equipment caused by system start and stop, low cost and the like.
The hydraulic running control system device of the car puller comprises:
the hydraulic motor can provide a power source for the running of the car puller;
at least one controller, each controller capable of independently controlling one hydraulic motor to adjust the speed of the hydraulic motor;
the proportional valve is arranged corresponding to the controller and can output and adjust the traveling speed of the tippler by controlling the flow of the oil pump;
the angle sensor is arranged corresponding to the controller and can form a closed-loop control circuit with the controller so as to dynamically perform closed-loop response in real time;
and an electric control element which can control the start and stop of each hydraulic motor.
Optionally, in one embodiment, the controller includes an electrical amplifier, preferably a VT5035 circuit amplifier.
Optionally, in one embodiment, the apparatus further includes: and an indicator light circuit for detecting and displaying a connection state between the electrical amplifier and the angle sensor.
Optionally, in one embodiment, the electrical control element includes a low-voltage electrical unit disposed corresponding to the controller, and the low-voltage electrical unit includes a main circuit contactor and a thermal relay, wherein the main circuit contactor is used for automatically powering down to stop the operation of the electric motor when the electric motor of the hydraulic motor is overheated; the thermal relay is a thermal relay with a thermal protection function.
Optionally, in one embodiment, the apparatus further includes a breaker, and the breaker is a breaker with short-circuit and overcurrent functions.
Implement the embodiment of the utility model provides a, will have following beneficial effect:
the utility model solves the problems of large mechanical impact, high cost and the like in the prior art by designing a hydraulic traveling control device of a car puller with an amplifying circuit device, provides a power source for the traveling of the car puller through a hydraulic motor, adjusts the traveling speed through the size of an output proportional valve and can complete closed-loop control through the real-time dynamic feedback of an angle sensor; compared with the traditional variable frequency driving mode, the utility model does not need to carry out a large amount of parameter adjustment of the frequency converter and complicated dynamic optimization of the motor, and the debugging is very simple and convenient; simultaneously the utility model discloses come from hydraulic motor because of the power supply, no mechanical rigid connection, so the system start-up stops very level and smooth, does not have mechanical shock.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
FIG. 1 is a block diagram of a hydraulic traveling control device of a car puller in one embodiment;
FIG. 2 is a circuit diagram of an amplifier of a hydraulic traveling control device VT5035 of a car puller in one embodiment;
fig. 3 is a schematic diagram of VT5035 enlarged plate circuit adjustment shown in fig. 2;
FIG. 4 is a diagram of a hydraulic pump main circuit of a hydraulic traveling control device of a tippler in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application. The first and second elements are both elements, but they are not the same element.
In order to solve the problems of large mechanical impact and high cost in the traditional control technology of the existing car puller, the hydraulic traveling control device of the car puller is provided in the embodiment, the defects of the existing equipment are overcome mainly by a method of combining electric liquid, and the hydraulic traveling control device of the car puller has the advantages of simple control mode, small pollution to a power grid, low energy consumption, small impact on equipment caused by system start and stop, low cost and the like. As shown in fig. 1, the hydraulic traveling control device of the tippler comprises a hydraulic motor, a controller, a proportional valve, an angle sensor, an electric control element and the like.
The hydraulic motor can provide a power source for the running of the tippler, the principle of the example is only explained by taking two hydraulic motors (M3 and M4 in the figure 4) as an example, the number of the hydraulic motors is not specifically explained, and the actual use requirement is taken as a standard;
each controller can independently control one hydraulic motor to adjust the speed of the hydraulic motor, the controllers are arranged in one-to-one correspondence with the hydraulic motors and form closed-loop control with the angle sensor, and the controller has the advantages of high response speed to a system and high control precision; in some specific embodiments, the controller includes an electrical amplifier, preferably a VT5035 circuit amplifier, which includes a differential amplifier 2, an adder 3, a ramp function amplifier 4, a swash plate inclination controller 5, a current regulator 6, an output stage 7, a monitor 8, a vibrator/demodulator 9, a power supply 10, an angle sensor 11, a swash plate inclination collector 12, and a proportional valve 13, and the control value 1 shown in fig. 2 is simple for the control mode of the electrical amplifier, and only the control value 1 needs to be activated to activate the corresponding given speed value by activating the control value 1 to control the relays K1-K4; the control value control relay K6 in FIG. 2 controls the moving direction of the system, and when activated, the system runs reversely; the speed can be adjusted only by adjusting the corresponding slide rheostat W1-W4 in the circuit board, the adjustment precision is as high as 0.001V, and a large number of parameters are not required to be input into the frequency converter in a frequency conversion driving mode.
The two proportional valves are arranged corresponding to the controller, and the proportional throttle valve can output and adjust the traveling speed of the car puller under the condition of controlling the flow of the oil pump; in some specific embodiments, as shown in fig. 2, the proportional valve 13 controls the flow output of the oil pump, the angle sensor feeds back the actual displacement of the field hydraulic pump, and the larger the angle is, the higher the displacement is, the faster the speed is, and the real-time dynamic closed-loop response is performed.
Two angle sensors, which are arranged corresponding to the controller, wherein the angle sensor 11 and the controller can form a closed-loop control circuit to dynamically perform closed-loop response in real time;
and a set of electric control elements, which can control the start and stop of each hydraulic motor. In some specific embodiments, the electrical components include two main loop contactors KM5 and KM6 and two thermal relays KH5 and KH6, each of the two main loop contactors corresponds to a hydraulic motor circuit, and when a hydraulic motor is overheated, the KM5 and the KM6 are automatically powered off to stop the motor; the two thermal relays respectively correspond to a hydraulic motor circuit, KH5 and KH6 are thermal relays with thermal protection, and signals enter a self-control state; in some more specific embodiments, the system further comprises two circuit breakers QF5 and QF6, wherein the two thermal relays correspond to one hydraulic motor circuit respectively, the QF5 and the QF6 are circuit breakers with short-circuit and overcurrent functions, and a switch is tripped when a line is short-circuited and an overcurrent occurs or a phase loss occurs.
In some specific embodiments, as shown in FIG. 3, W1-W4 are speed adjusting slide rheostats, W1 is a control value ① to be indicated by an LED, W2 is a control value ② to be indicated by an LED, W3 is a control value ③ to be indicated by an LED, W4 is a control value ④ to be indicated by an LED, H10 cable disconnection detection indicator light, Z isXFor zero potential of the sensor, GXThe actual tilt angle swash plate gain; in the specific figure, the H10 indicator light is used for detecting the connection between the angle sensor and the cable of the amplification board, and when the cable is disconnected, the indicator light is red and normally on, and the line needs to be checked immediately.
The utility model discloses the working process who corresponds does:
the KM5 and KM6 in FIG. 4 were first sequentially activated to activate the M3 and M4 hydraulic motors in FIG. 4.
Secondly, enabling a K1-K4 or K6 relay in the VT5035 circuit amplifier to pull in to control the speed control and the direction control of an amplifying plate, correspondingly controlling the speed regulation of a hydraulic motor by one amplifying circuit board, and correspondingly activating W1-W4 speed control values by K1-K4 actions; measuring each W port in fig. 2 with a multimeter dc voltage level, the currently activated speed control value can be measured; the control speed value can be increased or decreased by adjusting the activated W1/H1-W4/H4 channel clockwise or anticlockwise by using a small straight screwdriver; the VT5035 circuit amplifier controls the output of the proportional valve; and meanwhile, carrying out automatic PID closed-loop regulation according to the feedback condition of the angle sensor. When no channel is activated at W1/H1-W4/H4, the proportional valve output is 0 displacement and the system stops.
The utility model solves the problems of large mechanical impact, high cost and the like in the prior art by designing a hydraulic traveling control device of a car puller with an amplifying circuit device, provides a power source for the traveling of the car puller through a hydraulic motor, adjusts the traveling speed through the size of an output proportional valve and can complete closed-loop control through the real-time dynamic feedback of an angle sensor; compared with the traditional variable frequency driving mode, the utility model does not need to carry out a large amount of parameter adjustment of the frequency converter and complicated dynamic optimization of the motor, and the debugging is very simple and convenient; simultaneously the utility model discloses come from hydraulic motor because of the power supply, no mechanical rigid connection, so the system start-up stops very level and smooth, does not have mechanical shock.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The hydraulic running control device of the car puller is characterized by comprising:
the hydraulic motor can provide a power source for the running of the car puller;
at least one controller, each controller capable of independently controlling one hydraulic motor to adjust the speed of the hydraulic motor;
the proportional valve is arranged corresponding to the controller and can output and adjust the traveling speed of the tippler by controlling the flow of the oil pump;
the angle sensor is arranged corresponding to the controller and can form a closed-loop control circuit with the controller so as to dynamically perform closed-loop response in real time;
and an electric control element which can control the start and stop of each hydraulic motor.
2. The apparatus of claim 1, wherein the controller comprises an electrical amplifier.
3. The apparatus of claim 2 wherein said electrical amplifier is a VT5035 circuit amplifier.
4. The apparatus of claim 1, wherein the electrical control element comprises a low voltage electrical unit disposed in correspondence with the controller, the low voltage electrical unit comprising a main circuit contactor for automatically powering down to stop the electric machine of the hydraulic motor from operating when the electric machine overheats and a thermal relay; the thermal relay is a thermal relay with a thermal protection function.
5. The apparatus of claim 4, further comprising a circuit breaker, wherein the circuit breaker is a circuit breaker with short circuit and overcurrent functions.
6. The apparatus of claim 1, further comprising: and an indicator light circuit for detecting and displaying a connection state between the electrical amplifier and the angle sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829605.XU CN210218260U (en) | 2019-06-04 | 2019-06-04 | Hydraulic walking control device of car puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829605.XU CN210218260U (en) | 2019-06-04 | 2019-06-04 | Hydraulic walking control device of car puller |
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| Publication Number | Publication Date |
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| CN210218260U true CN210218260U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920829605.XU Active CN210218260U (en) | 2019-06-04 | 2019-06-04 | Hydraulic walking control device of car puller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951580A (en) * | 2022-06-27 | 2022-08-30 | 沈阳广泰真空科技股份有限公司 | Method and device for driving cooling roller to rotate, storage medium and electronic equipment |
-
2019
- 2019-06-04 CN CN201920829605.XU patent/CN210218260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951580A (en) * | 2022-06-27 | 2022-08-30 | 沈阳广泰真空科技股份有限公司 | Method and device for driving cooling roller to rotate, storage medium and electronic equipment |
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