CN210531585U - Bulldozer emergency walking control device - Google Patents
Bulldozer emergency walking control device Download PDFInfo
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- CN210531585U CN210531585U CN201921145458.0U CN201921145458U CN210531585U CN 210531585 U CN210531585 U CN 210531585U CN 201921145458 U CN201921145458 U CN 201921145458U CN 210531585 U CN210531585 U CN 210531585U
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Abstract
The utility model provides a bull-dozer emergency walking controlling means, include: the electric hydraulic control handle is used for a controller for gear shifting control and data transmission of a whole vehicle electric control system, an electromagnetic valve group and a touch display for displaying gear information of a vehicle, acquiring working state information of the controller in real time and displaying state information of the vehicle, applying to man-machine interaction and outputting by a voltage input interface and a switching value control interface; the bulldozer controls the shifting up and down through two switch buttons on the handle. The gear is controlled by combining three different output states of the two electromagnetic valves, so that the gear is controlled. And the gear signals are sent to the touch display for display through the CAN bus. The controller can be ensured to control the operation through the touch display after the controller fails, and the vehicle is ensured to still have a normal walking function.
Description
Technical Field
The utility model relates to a bull-dozer technical field especially relates to an urgent walking control device of bull-dozer.
Background
Generally, gear control of a bulldozer is realized through an electromagnetic valve and an electro-hydraulic control handle, a gear shifting control process of the bulldozer is realized through a controller, and gear shifting is realized through the electromagnetic valve controlled by the controller.
If the controller breaks down and voltage output cannot be carried out, the gear shifting function cannot be realized, and the vehicle cannot continue to walk forwards.
Before the new control is not switched, if the vehicle is temporarily moved or the vehicle is continuously used, an emergency vehicle moving scheme needs to be made, and the general method is to use a trailer, so that the cost is high, the use is inconvenient, the time delay is caused, and the work is influenced. Therefore, there is a need to solve the problem that the bulldozer can temporarily start up the bulldozer when the controller is damaged and cannot be used continuously,
SUMMERY OF THE UTILITY MODEL
In order to overcome the deficiencies in the prior art, the utility model provides an urgent walking controlling means of bull-dozer, include: the electric hydraulic control handle is used for a controller for gear shifting control and data transmission of a whole vehicle electric control system, an electromagnetic valve group and a touch display for displaying gear information of a vehicle, acquiring working state information of the controller in real time and displaying state information of the vehicle, applying to man-machine interaction and outputting by a voltage input interface and a switching value control interface; a switch button group is arranged on the electro-hydraulic control handle; the touch display and the controller are respectively connected with the switch button group; the touch display is in communication connection with the controller; the switch button group is connected with the electromagnetic valve group through the touch display and the controller respectively; the touch display and the controller respectively acquire a gear increasing and decreasing control instruction input by an operator through the switch button group, and when the controller works normally, the controller controls the bulldozer to execute a gear increasing and decreasing action through the electromagnetic valve group according to the gear increasing and decreasing control instruction.
It should be further noted that the electromagnetic valve group includes: solenoid valve 1Y and solenoid valve 2Y;
the electromagnetic valve 1Y is configured to supply power, and the electromagnetic valve 2Y is not configured to supply power, so that the gear is a 1-gear;
when the electromagnetic valve 1Y is not powered and the electromagnetic valve 2Y is not powered, a 2-gear is adopted;
and when the electromagnetic valve 1Y is not powered and the electromagnetic valve 2Y is powered, the gear is in a 3-gear position.
The electro-hydraulic control handle is a hydraulic pilot handle, the front end of the electro-hydraulic control handle is provided with a forward clamping position, and the rear end of the electro-hydraulic control handle is provided with a backward clamping position;
the switch button group includes: a front end electromagnet and a rear end electromagnet;
the power connection end of the electric hydraulic control handle, the front end electromagnet and the rear end electromagnet are connected with the power supply switch together, and after the electric hydraulic control handle is electrified, the front end electromagnet and the rear end electromagnet attract respectively.
It should be further noted that the controller and the touch display are communicated through CAN bus signals.
It should be further noted that the touch display and the controller are respectively connected with an engine of the bulldozer to acquire an engine speed signal and a preset idle speed signal;
the touch display and the controller are respectively connected with an electronic hand brake pull rod of the bulldozer to acquire state information of the electronic hand brake pull rod of the bulldozer.
It should be further explained that the electro-hydraulic control handle, the controller, the electromagnetic valve set and the touch display are respectively in communication connection through a wire harness.
According to the technical scheme, the utility model has the advantages of it is following:
the bulldozer controls the shifting up and down through two switch buttons on the handle. The gear is controlled by combining three different output states of the two electromagnetic valves, so that the gear is controlled. And the gear signals are sent to the touch display for display through the CAN bus. The controller can be ensured to control the operation through the touch display after the controller fails, and the vehicle is ensured to still have a normal walking function.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an emergency walk control device of a bulldozer;
FIG. 2 is a schematic view of an embodiment of an emergency walk control apparatus for a bulldozer;
FIG. 3 is a schematic view of an electro-hydraulic control handle.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
The utility model provides a bull-dozer emergency walking controlling means, as shown in fig. 1 to 3, include: the electric hydraulic control system comprises an electric hydraulic control handle 1, a controller 2 used for gear shifting control and data transmission of a whole vehicle electric control system, an electromagnetic valve group 3 and a touch display 4 used for displaying gear information of a vehicle, acquiring working state information of the controller 2 in real time and displaying state information of the vehicle, applying to man-machine interaction and outputting by a voltage input interface and a switching value control interface;
the controller 2 can be connected by a model and a circuit which are commonly used in the field of bulldozers, and the specific model is not limited.
The electro-hydraulic control handle 1, the controller 2, the electromagnetic valve group 3 and the touch display 4 are in communication connection through a wiring harness. The electric hydraulic control handle 1 is provided with a switch button group 5; the touch display 4 and the controller 2 are respectively connected with the switch button group 5; the controller 2 and the touch display 4 are in communication transmission through CAN bus signals; the switch button group 5 is respectively connected with the electromagnetic valve group 3 through the touch display 4 and the controller 2; the touch display 4 and the controller 2 respectively obtain a gear plus-minus control instruction input by an operator through the switch button group 5, and when the controller 2 works normally, the controller 2 controls the bulldozer to execute plus-minus gear actions through the electromagnetic valve group 3 according to the gear plus-minus control instruction.
In the utility model, the electro-hydraulic control handle 1 is a hydraulic pilot handle, the front end of the electro-hydraulic control handle 1 is provided with a forward position clamp, and the rear end is provided with a backward position clamp; the switch button group 5 includes: a front end electromagnet and a rear end electromagnet; the power connection end of the electric hydraulic control handle 1, the front end electromagnet and the rear end electromagnet are connected with the power supply switch together, and after the electric hydraulic control handle 1 is electrified, the front end electromagnet and the rear end electromagnet attract respectively. That is to say, after electric hydraulic control handle 1 got electric, front end electro-magnet and rear end electro-magnet actuation respectively, when operating personnel pushed electric hydraulic control handle 1 into the screens that advances, the bull-dozer carried out the action that advances to carry out the actuation through front end electro-magnet. When the bulldozer needs to retreat, the electro-hydraulic control handle 1 is pushed into a retreating clamping position, the bulldozer executes a retreating action, and the bulldozer is attracted through a rear-end electromagnet. As shown in fig. 3, C3 and C4 are electromagnets respectively, and when the electromagnets are electrified, and the electro-hydraulic control handle 1 can be clamped forwards and backwards; after the power is cut off, the handle can not be clamped.
The touch display 4 and the controller 2 are respectively connected with an engine of the bulldozer to acquire an engine speed signal and a preset idle speed signal; the touch display 4 and the controller 2 are respectively connected with an electronic hand brake pull rod of the bulldozer to acquire state information of the electronic hand brake pull rod of the bulldozer.
The controller 2 obtains the required gear control by controlling the states of two electromagnetic valves in the electromagnetic valve group 3. The gear control state table is shown as table one. For example, when the electromagnetic valve 1Y is powered and the electromagnetic valve 2Y is not powered, the gear is a 1-gear; when the electromagnetic valve 1Y is not powered and the electromagnetic valve 2Y is not powered, a 2-gear is adopted; and when the electromagnetic valve 1Y is not powered and the electromagnetic valve 2Y is powered, the gear is in a 3-gear position.
Electromagnet state table 1
| Name (R) | 1Y | 2Y |
| First gear | + | - |
| Second gear | - | - |
| Three-gear | - | + |
The bulldozer controls the shifting up and down through two switch buttons on the electro-hydraulic control handle. The gear control is carried out through 3 different output state combinations of the two electromagnetic valves, so that the gear is controlled. And the gear signals are sent to a display for displaying through a CAN bus. The emergency rescue system can ensure that the vehicle still has a normal walking function through the display after the controller fails.
According to the invention, when the display cannot receive a bus signal of the controller, an operator can carry out emergency rescue request through man-machine interaction, after the request is successful, the control mode is switched from the controller to the touch display according to the operation steps prompted by the touch display, the touch display can be controlled, when the situation that the vehicle locking pull rod is a non-braking signal and the rotating speed signal of the engine is higher than the idle speed value is detected, the power supply is started to the electro-hydraulic control handle, and after the power supply is successful, the vehicle can normally walk. After the emergency walking operation is finished, the function is automatically closed after the emergency walking operation is shut down. If the starting is needed again, the function can be turned on again according to the operation after the power is on.
The invention provides an emergency walking control solution for a bulldozer provided with a controller. The problems that the existing machine cannot be used continuously due to the damage of the controller, so that time delay is delayed and work is influenced are solved.
That is to say, when the touch display can not receive the data that the controller sent, perhaps can't communicate, then judge the controller trouble, at this moment, shift gears and can't normally go on, the user can't carry out normal operation of shifting gears through the handle. At this time, the user can perform interface interaction by touching the display to start the emergency walking control system.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An emergency travel control device for a bulldozer, comprising: the electric hydraulic control handle is used for a controller for gear shifting control and data transmission of a whole vehicle electric control system, an electromagnetic valve group and a touch display for displaying gear information of a vehicle, acquiring working state information of the controller in real time and displaying state information of the vehicle, applying to man-machine interaction and outputting by a voltage input interface and a switching value control interface;
a switch button group is arranged on the electro-hydraulic control handle;
the touch display and the controller are respectively connected with the switch button group; the touch display is in communication connection with the controller;
the switch button group is connected with the electromagnetic valve group through the touch display and the controller respectively;
the touch display and the controller respectively acquire a gear increasing and decreasing control instruction input by an operator through the switch button group, and when the controller works normally, the controller controls the bulldozer to execute a gear increasing and decreasing action through the electromagnetic valve group according to the gear increasing and decreasing control instruction.
2. The bulldozer emergency walk control apparatus of claim 1,
the solenoid valve group includes: solenoid valve 1Y and solenoid valve 2Y;
the electromagnetic valve 1Y is configured to supply power, and the electromagnetic valve 2Y is not configured to supply power, so that the gear is a 1-gear;
when the electromagnetic valve 1Y is not powered and the electromagnetic valve 2Y is not powered, a 2-gear is adopted;
and when the electromagnetic valve 1Y is not powered and the electromagnetic valve 2Y is powered, the gear is in a 3-gear position.
3. The bulldozer emergency walk control device of claim 1 or 2,
the electro-hydraulic control handle is a hydraulic pilot handle, the front end of the electro-hydraulic control handle is provided with a forward clamping position, and the rear end of the electro-hydraulic control handle is provided with a backward clamping position;
the switch button group includes: a front end electromagnet and a rear end electromagnet;
the power connection end of the electric hydraulic control handle, the front end electromagnet and the rear end electromagnet are connected with the power supply switch together, and after the electric hydraulic control handle is electrified, the front end electromagnet and the rear end electromagnet attract respectively.
4. The bulldozer emergency walk control device of claim 1 or 2,
and the controller and the touch display are in communication transmission through CAN bus signals.
5. The bulldozer emergency walk control device of claim 1 or 2,
the touch display and the controller are respectively connected with an engine of the bulldozer to acquire an engine speed signal and a preset idle speed signal;
the touch display and the controller are respectively connected with an electronic hand brake pull rod of the bulldozer to acquire state information of the electronic hand brake pull rod of the bulldozer.
6. The bulldozer emergency walk control device of claim 1 or 2,
the electro-hydraulic control handle, the controller, the electromagnetic valve group and the touch display are in communication connection through a wire harness respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145458.0U CN210531585U (en) | 2019-07-19 | 2019-07-19 | Bulldozer emergency walking control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145458.0U CN210531585U (en) | 2019-07-19 | 2019-07-19 | Bulldozer emergency walking control device |
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| Publication Number | Publication Date |
|---|---|
| CN210531585U true CN210531585U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921145458.0U Active CN210531585U (en) | 2019-07-19 | 2019-07-19 | Bulldozer emergency walking control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811023A (en) * | 2022-04-07 | 2022-07-29 | 徐州徐工筑路机械有限公司 | Gear shifting handle control system and land leveler |
-
2019
- 2019-07-19 CN CN201921145458.0U patent/CN210531585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811023A (en) * | 2022-04-07 | 2022-07-29 | 徐州徐工筑路机械有限公司 | Gear shifting handle control system and land leveler |
| CN114811023B (en) * | 2022-04-07 | 2024-03-01 | 徐州徐工筑路机械有限公司 | Gear shifting handle control system and grader |
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