CN211113858U - Protection control device and excavator during pilot operation failure - Google Patents
Protection control device and excavator during pilot operation failure Download PDFInfo
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- CN211113858U CN211113858U CN201921428715.1U CN201921428715U CN211113858U CN 211113858 U CN211113858 U CN 211113858U CN 201921428715 U CN201921428715 U CN 201921428715U CN 211113858 U CN211113858 U CN 211113858U
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Abstract
An embodiment of the utility model provides a protection controlling means and excavator when guide's operation became invalid relates to excavator technical field. The utility model provides a protection controlling means when guide's operation became invalid includes input member, controller and executive component. The input piece is electrically connected with the controller, and the controller is electrically connected with the execution element. The controller is used for receiving the protection control instruction sent by the input part and controlling the execution element to operate at a preset power lower than the working power. Therefore, after the pilot operation fails, an operator can control the execution element to operate according to the requirement, and meanwhile, the operation power of the execution element is lower than the operation power, so that the execution element can complete response actions at a low speed, the excavator can be moved to a safe position, potential safety hazards brought to operators and mechanical equipment due to the failure of the pilot operation unit are eliminated, and the safety performance is higher.
Description
Technical Field
The utility model relates to an excavator technical field particularly, relates to a protection control device and excavator when guide's operation became invalid.
Background
The excavator is a common engineering machine in the engineering construction process, and the existing full-electric control excavator has become a development trend in the field of excavators due to the advantages of being capable of controlling the action coordination of the excavator more accurately and reducing the operation oil consumption.
However, the reliability of the control circuit in the fully electrically controlled excavator is inferior to that of a hydraulically controlled system, for example, when the pilot operation of the electrically controlled excavator fails, the existing excavator cannot operate, and great potential safety hazards are caused to operators and mechanical equipment.
SUMMERY OF THE UTILITY MODEL
The objects of the present invention include, for example, providing a protection control device when a pilot operation fails, which can solve the above-mentioned problems existing in the prior art.
The utility model discloses an aim still includes, provides an excavator, and it includes foretell guide's operation protection controlling means when becoming invalid.
The embodiment of the utility model discloses a can realize like this:
the embodiment of the utility model provides a protection control device when the pilot operation fails, which comprises an input piece, a controller and an execution element; the input piece is electrically connected with the controller, the execution element is electrically connected with the controller, and the controller is used for receiving a protection control instruction sent by the input piece and controlling the execution element to operate at a preset power lower than the working power.
Optionally, the protection control device when the pilot operation fails further comprises an oil supply system electrically connected to the controller; the oil supply system and the execution element form an oil supply loop; when the controller receives the protection control instruction, the controller controls the oil supply system to supply oil to the execution element when the oil supply system is lower than the working oil amount.
Optionally, the oil supply system includes a pump electrically connected to the controller, and the pump and the execution unit form an oil supply loop; when the controller receives the protection control instruction, the controller controls the pump to supply oil to the execution element at a preset displacement;
wherein the preset displacement is lower than the working displacement of the pump.
Optionally, the oil supply system further includes an electric control main valve electrically connected to the controller, and the electric control main valve and the execution unit form an oil supply loop; when the controller receives the protection control instruction, the controller controls the electric control main valve to be opened at a preset opening degree;
and the preset opening degree is smaller than the operation opening degree of the electric control main valve.
Optionally, the oil supply system includes a pump and an electrically controlled main valve, which are communicated with each other, and both the pump and the electrically controlled main valve are electrically connected to the controller; the pump machine and the executive element form an oil supply loop through the electric control main valve; when the controller receives the protection control instruction, the controller controls the electric control main valve to be opened at a preset opening degree and controls the pump to supply oil to the execution element at a preset discharge capacity;
wherein the preset opening degree is smaller than the operation opening degree of the electric control main valve; the preset displacement is lower than the working displacement of the pump.
Optionally, the ratio of the preset displacement to the working displacement is 0.15-0.25.
Optionally, a ratio of the preset opening degree to the operation opening degree is 0.15-0.25.
Optionally, the input device is a touch panel.
The embodiment of the utility model also provides an excavator. The excavator comprises any one protection control device when the pilot operation fails.
Optionally, the actuating element includes a boom, an arm, a bucket, and a traveling device of the excavator.
The utility model discloses protection controlling means and excavator when guide's operation became invalid beneficial effect includes, for example:
the embodiment of the utility model provides a protection controlling means when guide's operation became invalid includes input member, controller and executive component. The input piece is electrically connected with the controller, and the controller is electrically connected with the execution element. The controller is used for receiving the protection control instruction sent by the input part and controlling the execution element to operate at a preset power lower than the working power. Therefore, after the pilot operation fails, an operator can control the execution element to operate according to the requirement, and meanwhile, the operation power of the execution element is lower than the operation power, so that the execution element can complete response actions at a low speed, the excavator can be moved to a safe position, potential safety hazards brought to operators and mechanical equipment due to the failure of the pilot operation unit are eliminated, and the safety performance is higher.
The embodiment of the utility model also provides an excavator, it includes the protection controlling means when foretell guide's operation became invalid. The excavator also has the advantage of high safety performance because the excavator comprises the protection control device when the pilot operation fails.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a block diagram of an excavator according to an embodiment of the present invention.
Icon: 100-an excavator; 110-a pilot operating unit; 111-an electric control handle; 112-an electrically controlled foot valve; 120-a controller; 130-an oil supply system; 131-a pump machine; 132-an electrically controlled main valve; 140-an actuator; 141-a boom; 142-a dipper; 143-a bucket; 144-a swing mechanism; 145-first travel mechanism; 146-a second running gear; 150-an input; 151-first key area; 152-a second key area; 153-third key area; 154-fourth key area; 155-fifth key area; 156-sixth key area; 160-protective control in case of failure of pilot operation.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Fig. 1 is a block diagram of an excavator 100 according to the present embodiment. Referring to fig. 1, the present embodiment provides an excavator 100, and the excavator 100 includes a pilot operation unit 110 and a protection control device 160 when the pilot operation fails. The arming control device 160 when the pilot operation fails includes the input member 150, the controller 120, and the actuator 140. In the present embodiment, the controller 120 and the actuator 140 of the guard control device 160 at the time of the pilot operation failure are both of a conventional configuration in the excavator 100, and it is understood that in other embodiments, the controller 120 and the actuator 140 for performing the guard control at the time of the pilot operation failure may be separately provided as needed.
The pilot operation unit 110 is electrically connected to the controller 120, the controller 120 is electrically connected to the actuator 140, and when the excavator 100 normally works, the operator transmits a pilot operation signal to the controller 120 using the pilot operation unit 110, and the controller 120 controls the actuator 140 to work accordingly according to the received pilot operation signal. When the operator uses the pilot operation unit 110 to perform the pilot operation and the actuator 140 cannot complete the corresponding operation, it is determined that the excavator 100 is in a state where the pilot operation fails, at this time, the operator uses the input element 150 to send a protection control command to the controller 120, and the controller 120 controls the corresponding actuator 140 to operate at a preset power according to the received protection control command, wherein the preset power is lower than the operation power of the actuator 140.
Specifically, the pilot operation unit 110 includes an electric control handle 111 and an electric control foot valve 112 of the excavator 100, displacement amounts of the electric control handle 111 and the electric control foot valve 112 are both sent to the controller 120 through a CAN (controller area network) signal, the controller 120 controls the excavator 100 to perform corresponding operations according to the received signal, and when the electric control handle 111 or the electric control foot valve 112 is displaced and the excavator 100 cannot respond, it is determined that the excavator 100 is in a pilot operation failure state.
The actuator 140 includes a boom 141, an arm 142, a bucket 143, and a traveling device of the excavator 100. The boom 141, the arm 142, the bucket 143, and the traveling device of the excavator 100 are connected to the controller 120, respectively, so that the corresponding work is performed under the control of the controller 120. Optionally, the traveling device includes a swing mechanism 144 for driving the excavator 100 to swing, a first traveling mechanism 145 for driving the excavator 100 to travel left, and a second traveling mechanism 146 for driving the excavator 100 to travel right.
Further, the excavator 100 further includes an oil supply system 130 for driving the boom 141, the arm 142, the bucket 143, the swing mechanism 144, the first travel mechanism 145, and the second travel mechanism 146, hydraulic cylinders or hydraulic motors are respectively disposed in the boom 141, the arm 142, the bucket 143, the swing mechanism 144, the first travel mechanism 145, and the second travel mechanism 146 to form an oil supply loop with the oil supply system 130, the oil supply system 130 is electrically connected to the controller 120, and the oil supply system 130 drives the corresponding actuator 140 to perform work according to a control signal sent by the controller 120. When the operator sends the protection control command to the controller 120 through the input part 150, and the controller 120 receives the protection control command, the oil supply system 130 is controlled to supply oil to the actuator 140 with an oil amount lower than that in the normal operation, so that the actuator 140 operates at a power lower than that in the normal operation.
It should be noted that in the present embodiment, the actuator 140 is a hydraulic driving element, and the controller 120 is electrically connected to the oil supply system 130 to control the response of the actuator 140, and it is understood that in other embodiments, when the actuator 140 is an electric control element, the controller 120 may also be directly electrically connected to the actuator 140.
Optionally, the oil supply system 130 includes a pump 131 and an electrically controlled main valve 132, the pump 131 forms an oil supply loop with the actuator 140 through the electrically controlled main valve 132, when the oil supply system 130 receives a control signal from the controller 120, the pump 131 starts to pump oil, the electrically controlled main valve 132 is opened, and hydraulic oil pumped by the pump 131 flows to the corresponding actuator 140 through the electrically controlled main valve 132, so as to drive the actuator 140 to operate. When the controller 120 receives the protection control command, the controller 120 controls the pump 131 to supply oil at a preset displacement, and controls the electronically controlled main valve 132 to open at a preset opening, wherein the preset displacement is smaller than the working displacement of the pump 131, and the preset opening is smaller than the working opening of the electronically controlled main valve 132, so that when the driving force obtained by the actuator 140 is smaller than the working state, the power of the actuator 140 is lower than that of normal operation, and the actuator 140 can only respond with slow motion at a low speed.
Optionally, the ratio of the preset displacement to the working displacement is 0.15-0.25; the ratio of the preset opening degree to the operation opening degree is 0.15-0.25. Optionally, the ratio of the preset displacement to the working displacement is 0.15, 0.2 or 0.25; the ratio of the preset opening degree to the working opening degree is 0.15, 0.2 or 0.25.
It should be noted that, in this embodiment, when the controller 120 obtains the protection control instruction, the pump 131 is controlled to supply oil at the preset displacement, and the electronically controlled main valve 132 is controlled to open at the preset opening, it can be understood that, in other embodiments, the pump 131 may be controlled to supply oil at the preset displacement, and the electronically controlled main valve 132 is controlled to open at the working opening according to the requirement; alternatively, the pump 131 may be controlled to supply oil at the working displacement, and the electronically controlled main valve 132 may be opened at a predetermined opening degree, so that the power of the actuator 140 may be reduced and the actuator may respond at a slow speed.
In this embodiment, the input device 150 is a touch panel, and a key area for issuing a protection control command to the controller 120 is disposed on the touch panel. Specifically, in this embodiment, six key regions are configured on the touch panel, and the six key regions are a first key region 151, a second key region 152, a third key region 153, a fourth key region 154, a fifth key region 155, and a sixth key region 156.
The first button region 151 is configured to issue a protection control command for controlling the operation of the boom 141 of the excavator 100 to the controller 120, and optionally, the first button region 151 includes two button portions, and the two button portions are respectively configured to issue a protection control command for controlling the raising and lowering operations of the boom 141 of the excavator 100 to the controller 120. The second button region 152 is configured to issue a protection control command for controlling the operation of the arm 142 of the excavator 100 to the controller 120, and optionally, the second button region 152 includes two button portions, and the two button portions are respectively configured to issue a protection control command for controlling the unloading and excavating operations of the arm 142 of the excavator 100 to the controller 120. The third button region 153 is used to issue a protection control command for controlling the operation of the bucket 143 of the shovel 100 to the controller 120, and optionally, the third button region 153 includes two button portions, and the two button portions are respectively used to issue a protection control command for controlling the unloading and digging operations of the bucket 143 of the shovel 100 to the controller 120. The fourth button area 154 is used to issue a protection control command for controlling the operation of the swing mechanism 144 of the excavator 100 to the controller 120, and optionally, the fourth button area 154 includes two button parts, which are respectively used to issue a protection control command for controlling the swing mechanism 144 of the excavator 100 to perform left and right swing motions to the controller 120. The fifth button region 155 is used to issue a guard control command for controlling the operation of the first travel mechanism 145 of the shovel 100 to the controller 120, and optionally, the fifth button region 155 includes two button portions for issuing a guard control command for controlling the forward and backward movements of the first travel mechanism 145 of the shovel 100 to the controller 120. The sixth key area 156 is used to issue a protection control command for controlling the operation of the second traveling mechanism 146 of the excavator 100 to the controller 120, and optionally, the sixth key area 156 includes two key portions for issuing a protection control command for controlling the forward and backward movement of the second traveling mechanism 146 of the excavator 100 to the controller 120.
In order to prevent the operating panel from being operated by mistake during the normal operation of the excavator 100, and to operate the actuator 140 of the excavator 100 at the predetermined power, further, by providing a lock screen on the operating panel, when the operator determines that the excavator 100 is in the pilot operation failure state, the operator needs to perform an unlocking operation in advance, and then can issue a protection control command to the controller 120 through the key area.
The embodiment of the protection control device 160 for the failure of the pilot operation at least has the following advantages:
the embodiment of the utility model provides a protection controlling means 160 when guide's operation became invalid opens with low automatically controlled main valve 132 with low aperture simultaneously through control pump machine 131 to carry out the fuel feeding, drive execute component 140's slow response, make excavator 100 can enough slowly function, can prevent again to cause the safety problem. By controlling the pump 131 and the electrically controlled main valve 132 to operate at a value lower than normal operation, the displacement of the pump 131 is matched with the opening of the electrically controlled main valve 132, so that the operation of the oil supply system 130 is more reasonable and reliable.
The present embodiment also provides an excavator 100 that includes the protection control device 160 when the pilot operation fails as described above. Since the excavator 100 includes the guard control device 160 in the event of the failure of the pilot operation, the safety and the reliability of the operation are also advantageous.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A fail-safe pilot operation control device, comprising an input member (150), a controller (120), and an actuator (140); the input piece (150) is electrically connected with the controller (120), the execution element (140) is electrically connected with the controller (120), and the controller (120) is used for receiving a protection control instruction sent by the input piece (150) and controlling the execution element (140) to operate at a preset power lower than the working power.
2. The fail-safe pilot-operated control device according to claim 1, characterized in that the fail-safe pilot-operated control device (160) further comprises an oil supply system (130) electrically connected to the controller (120); the oil supply system (130) forms an oil supply circuit with the actuator (140); when the controller (120) receives the protection control instruction, the controller (120) controls the oil supply system (130) to supply oil to the execution element (140) in an amount lower than the working oil amount.
3. The protection control device in the event of a pilot operation failure according to claim 2, characterized in that the oil supply system (130) comprises a pump (131) electrically connected to the controller (120), the pump (131) being in an oil supply circuit with the actuator (140); when the controller (120) receives the protection control instruction, the controller (120) controls the pump (131) to supply oil to the actuator (140) at a preset displacement;
wherein the preset displacement is lower than the working displacement of the pump (131).
4. The fail-safe pilot operation control device according to claim 2, wherein the oil supply system (130) further includes an electrically controlled main valve (132) electrically connected to the controller (120), the electrically controlled main valve (132) and the actuator (140) constituting an oil supply circuit; when the controller (120) receives the protection control instruction, the controller (120) controls the electric control main valve (132) to be opened at a preset opening degree;
wherein the preset opening is smaller than the operation opening of the electric control main valve (132).
5. The fail-safe pilot-operated control device according to claim 2, wherein the oil supply system (130) includes a pump (131) and an electrically-controlled main valve (132) that are communicated with each other, the pump (131) and the electrically-controlled main valve (132) being electrically connected to the controller (120); the pump (131) and the execution element (140) form an oil supply loop through the electric control main valve (132); when the controller (120) receives the protection control instruction, the controller (120) controls the electrically-controlled main valve (132) to be opened at a preset opening degree, and controls the pump (131) to supply oil to the actuator (140) at a preset displacement;
wherein the preset opening is smaller than the operation opening of the electric control main valve (132); the preset displacement is lower than the working displacement of the pump (131).
6. A guard control device as claimed in claim 3 or 5 characterised in that the ratio of the preset displacement to the working displacement is 0.15-0.25.
7. The fail-safe control apparatus in pilot operation according to claim 4 or 5, characterized in that the ratio of the preset opening degree to the working opening degree is 0.15-0.25.
8. The fail-safe pilot operation control device according to claim 1, wherein the input member (150) is a touch panel.
9. An excavator, characterized in that the excavator comprises a guard control device (160) in the event of failure of the pilot operation according to any one of claims 1-8.
10. The excavator of claim 9, wherein the implement (140) comprises a boom (141), a stick (142), a bucket (143), and a running gear of the excavator (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428715.1U CN211113858U (en) | 2019-08-30 | 2019-08-30 | Protection control device and excavator during pilot operation failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428715.1U CN211113858U (en) | 2019-08-30 | 2019-08-30 | Protection control device and excavator during pilot operation failure |
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| Publication Number | Publication Date |
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| CN211113858U true CN211113858U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921428715.1U Active CN211113858U (en) | 2019-08-30 | 2019-08-30 | Protection control device and excavator during pilot operation failure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468902A (en) * | 2019-08-30 | 2019-11-19 | 上海三一重机股份有限公司 | Defense controls method, apparatus and excavator when a kind of pilot operated failure |
| CN114250821A (en) * | 2021-12-28 | 2022-03-29 | 徐州徐工挖掘机械有限公司 | Excavator emergency operation control system and method |
-
2019
- 2019-08-30 CN CN201921428715.1U patent/CN211113858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468902A (en) * | 2019-08-30 | 2019-11-19 | 上海三一重机股份有限公司 | Defense controls method, apparatus and excavator when a kind of pilot operated failure |
| CN114250821A (en) * | 2021-12-28 | 2022-03-29 | 徐州徐工挖掘机械有限公司 | Excavator emergency operation control system and method |
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