CN204279682U - Forward and reverse traveling shifter and hoisting crane - Google Patents
Forward and reverse traveling shifter and hoisting crane Download PDFInfo
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- CN204279682U CN204279682U CN201420710933.5U CN201420710933U CN204279682U CN 204279682 U CN204279682 U CN 204279682U CN 201420710933 U CN201420710933 U CN 201420710933U CN 204279682 U CN204279682 U CN 204279682U
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Abstract
The utility model relates to a kind of forward and reverse traveling shifter and hoisting crane, and forward and reverse traveling shifter comprises: control the traveling maneuvering valve (1) of travel direction, forward and reverse transfer valve (2), the left running motor (4) driving left crawler belt, the right running motor (5) driving right-hand track chiain, main reversing valve (3) and detection module; Forward and reverse transfer valve (2) is arranged on the oil circuit that travels between maneuvering valve (1) and main reversing valve (3), can the flow direction of oil circuit control of switching controls main reversing valve (3); Main reversing valve (3) is connected with the actuator port of left running motor (4) and right running motor (5) respectively; Detection module is connected with the control end of forward and reverse transfer valve (2), can detect the mode of operation of forward and reverse transfer valve (2) and provide control signal.Forward and reverse traveling shifter of the present utility model, when hoisting crane carries out forward and reverse switching traveling, reliably can realize commutation, ensure that the safety of hoisting crane work.
Description
Technical field
The utility model relates to engineering machinery field, particularly relates to a kind of forward and reverse traveling shifter and hoisting crane.
Background technology
Crawler crane is arranged on crawler body by hoisting operation part, walking relies on the hoisting crane of crawler attachment, it needs to possess positive dirction driving functions, namely how the relative position no matter got on and off changes, can realize remaining that control cabin front is the function travelling positive dirction, namely, when forward (afterwards) promotes to travel maneuvering valve, car load remains that forward (afterwards) travels.
Realize forward and reverse traveling mainly through hydraulic efficiency pressure system in prior art to switch, and along with the exploitation of crawler crane, the security requirement travelled it is more and more higher.But existing exchange system often breaks down in control process, cause hoisting crane to realize normal commutation, therefore there is certain potential safety hazard.
Utility model content
The purpose of this utility model proposes a kind of forward and reverse traveling shifter and hoisting crane, can reliably realize commutation when forward and reverse traveling switches.
For achieving the above object, the utility model provides a kind of forward and reverse traveling shifter on the one hand, comprising: control the traveling maneuvering valve 1 of travel direction, forward and reverse transfer valve 2, the left running motor 4 driving left crawler belt, the right running motor 5 driving right-hand track chiain, main reversing valve 3 and detection module;
Described forward and reverse transfer valve 2 is arranged on the oil circuit between described traveling maneuvering valve 1 and described main reversing valve 3, can the flow direction of oil circuit control of main reversing valve 3 described in switching controls;
Described main reversing valve 3 is connected with the actuator port of described left running motor 4 and described right running motor 5 respectively;
Described detection module is connected with the control end of described forward and reverse transfer valve 2, can detect the mode of operation of described forward and reverse transfer valve 2 and provide control signal.
Further, described detection module comprises: angular transducer and forward and reverse transfer valve sensor group,
Between described angular transducer is arranged on and gets on or off the bus, the relative rotating angle of getting on or off the bus can be detected;
Described forward and reverse transfer valve sensor group is arranged in valve body, can detect the mode of operation of described forward and reverse transfer valve 2.
Further, described forward and reverse transfer valve 2 comprises: be separately positioned on the first solenoid directional control valve 21 and the second solenoid directional control valve 22 in described right running motor 5 and described left running motor 4 place oil circuit.
Further, described forward and reverse transfer valve sensor group comprises two displacement pickups 6, institute's displacement sensors 6 is connected with the spool of described first solenoid directional control valve 21 with described second solenoid directional control valve 22 respectively, can detect the switching state of described first solenoid directional control valve 21 and described second solenoid directional control valve 22.
Further, the second pilot operated directional control valve 25 that described forward and reverse transfer valve 2 comprises the 3rd solenoid directional control valve 23, is arranged on the first pilot operated directional control valve 24 in the oil circuit of described right running motor 5 place and is arranged in the oil circuit of described left running motor 4 place, the control signal of described 3rd solenoid directional control valve 23 to described first pilot operated directional control valve 24 and the second pilot operated directional control valve 25 switches.
Further, described forward and reverse transfer valve sensor group comprises: pressure sensor 7 and displacement pickup 6,
Described pressure sensor 7 is connected on the oil circuit control of described first pilot operated directional control valve 24 and the second pilot operated directional control valve 25, can detect the switching state of described 3rd solenoid directional control valve 23;
Institute's displacement sensors 6 is connected with the spool of described first pilot operated directional control valve 24 and described second pilot operated directional control valve 25, can detect the switching state of described first pilot operated directional control valve 24 and described second pilot operated directional control valve 25.
Further, described first solenoid directional control valve 21 and described second solenoid directional control valve 22 are two four-way electromagnetic reversing valves.
Further, described 3rd solenoid directional control valve 23 is two-bit triplet solenoid directional control valves, and described first pilot operated directional control valve 24 and described second pilot operated directional control valve 25 are two four-way pilot operated directional control valves.
Further, described detection module also comprises controller, and described controller receives the detection signal of described angular transducer and described forward and reverse transfer valve sensor group respectively, and exports control signal.
For achieving the above object, the utility model provides a kind of hoisting crane on the other hand, comprises above-mentioned forward and reverse traveling shifter.
Based on technique scheme, forward and reverse traveling shifter of the utility model embodiment, detection module is wherein connected with the control end of forward and reverse transfer valve, the mode of operation of forward and reverse transfer valve can be detected and control signal is provided, like this when hoisting crane carries out forward and reverse switching traveling, forward and reverse transfer valve can reliably realize commutation according to control signal, when making (afterwards) forward promote to travel maneuvering valve, car load remains that forward (afterwards) travels, not only achieve control cabin front and be always traveling positive dirction, effectively improve the operation convenience of operating personal, and it also avoid because forward and reverse transfer valve fault causes car load cannot realize the phenomenon of commutation or pivot turn, ensure that the safety of hoisting crane work.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the hydraulic system principle figure of an embodiment of the forward and reverse traveling shifter of the utility model;
Fig. 2 is the hydraulic system principle figure of another embodiment of the forward and reverse traveling shifter of the utility model.
Detailed description of the invention
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
When describing the mode of operation of main reversing valve 3 in the utility model, " upper " and " bottom " is adopted to be described, be all for the position shown in Fig. 1 and Fig. 2, and " upper " is corresponding with actuator port b1, b2, " bottom " is corresponding with actuator port a1 and a2.Describe travel maneuvering valve 1 controlling party to travel direction with hoisting crane time, " forward " and " backward " is adopted to be described, specify that the front of hoisting box is the positive dirction travelled herein, being all " forward " mutually handles with positive dirction or travels, and contrary with positive dirction is handle " backward " or travel.
The forward and reverse traveling shifter of the one that the utility model provides, the hydraulic system principle figure of forward and reverse traveling shifter as depicted in figs. 1 and 2, comprising: control the traveling maneuvering valve 1 of travel direction, forward and reverse transfer valve 2, the left running motor 4 driving left crawler belt, the right running motor 5 driving right-hand track chiain, main reversing valve 3 and detection module; Forward and reverse transfer valve 2 is arranged on the oil circuit that travels between maneuvering valve 1 and main reversing valve 3, can the flow direction of oil circuit control of switching controls main reversing valve 3; Main reversing valve 3 is connected with the actuator port of left running motor 4 and right running motor 5 respectively; Detection module is connected with the control end of forward and reverse transfer valve 2, can detect the mode of operation of forward and reverse transfer valve 2 and provide control signal.
Forward and reverse traveling shifter of the utility model embodiment at least can reach following technique effect:
(1) when hoisting crane carries out forward and reverse switching traveling, forward and reverse transfer valve can reliably realize commutation according to control signal, when making (afterwards) forward promote to travel maneuvering valve, car load remains that forward (afterwards) travels, achieve and remain that control cabin front is for travelling positive dirction, improves the operation convenience of operating personal effectively.
(2) avoid because forward and reverse transfer valve fault causes car load cannot realize the phenomenon of commutation or pivot turn, improve the serviceability of forward and reverse traveling shifter, reduce potential safety hazard, ensure that the safety of hoisting crane work.
(3) trouble point that may occur in system during commutation is monitored in advance, reduce fault rate, and can find in time when system malfunctions, and keep in repair targetedly.
In a upper embodiment, detection module wherein comprises further: angular transducer and forward and reverse transfer valve sensor group, between angular transducer is arranged on and gets on or off the bus, can detect the relative rotating angle of getting on or off the bus; Forward and reverse transfer valve sensor group is arranged in valve body, can detect the mode of operation of forward and reverse transfer valve 2.
Fig. 1 is the hydraulic system principle figure of an embodiment of the forward and reverse traveling shifter of the utility model, wherein, forward and reverse transfer valve 2 comprises: be separately positioned on the first solenoid directional control valve 21 and the second solenoid directional control valve 22 in right running motor 5 and left running motor 4 place oil circuit.
Preferably, the first solenoid directional control valve 21 and the second solenoid directional control valve 22 are two four-way electromagnetic reversing valves.
Preferably, main reversing valve 3 comprises two three eight logical pilot operated directional control valves, and its inside can also comprise by pass valve 8, carries out voltage-limiting protection time excessive to system pressure.
In order to understand hydraulic work system principle better, the mark in Fig. 1 is made an explanation: oil inlet, the return opening of whole hydraulic efficiency pressure system are respectively P, T; Oil inlet, the return opening of the first solenoid directional control valve 21 are respectively P1, T1, and two actuator ports are respectively A1, B1; Oil inlet, the return opening of the second solenoid directional control valve 2 are respectively P2, T2, and two actuator ports are respectively A2, B2; In three eight that are connected with right running motor 5 logical pilot operated directional control valves, the next control port is a1, and upper control port is b1; In three eight that are connected with left running motor 4 logical pilot operated directional control valves, the next control port is a2, and upper control port is b2.
And in this kind of embodiment, forward and reverse transfer valve sensor group comprises two displacement pickups 6, displacement pickup 6 is connected with the spool of the first solenoid directional control valve 21 with the second solenoid directional control valve 22 respectively, can detect the switching state of the first solenoid directional control valve 21 and the second solenoid directional control valve 22.
Below the principle of work of forward and reverse traveling shifter of this embodiment is set forth.
(1) when angular transducer detects that the left and right revolution of getting on or off the bus is no more than 90 degree, the first solenoid directional control valve 21 and the second solenoid directional control valve 22 are power failure state, and forward and reverse transfer valve 2 does not commutate, displacement pickup 6 no signal.(backward) manipulation travels maneuvering valve 1 (travelling maneuvering valve 1 can be handle arrangement) forward, forward and reverse traveling shifter obtains hydraulic oil, (returning) hydraulic fluid port P1, P2 (T1, T2) that enters of forward and reverse transfer valve 2 has pressure, because forward and reverse transfer valve 2 does not commutate, its actuator port A1, A2 (B1, B2) are communicated with P1, P2 (T1, T2) pressure, and be communicated with control port b1, b2 (a1, a2) of main reversing valve 3, upper (bottom) of main reversing valve 3 is acted on, realizes car load (backward) traveling forward.
(2) when angular transducer detects that the left and right of getting on or off the bus is turned round more than 90 degree, the first solenoid directional control valve 21 and the second solenoid directional control valve 22 are "on" position, and forward and reverse transfer valve 2 commutates, and displacement pickup 6 has signal.(backward) manipulation travels maneuvering valve 1 forward, (returning) hydraulic fluid port P1, P2 (T1, T2) that enters of forward and reverse transfer valve 2 has pressure, because forward and reverse transfer valve 2 commutates, its actuator port B1, B2 (A1, A2) mouth is communicated with P1, P2 (T1, T2) pressure, and be communicated with control port a1, a2 (b1, b2) of main reversing valve 3, the bottom of main reversing valve 3 (upper) is acted on, realizes car load (backward) traveling forward.
(3) when left and right revolution be no more than 90 degree time, the first solenoid directional control valve 21 and the second solenoid directional control valve 22 without control signal, thus displacement pickup 6 no signal; When left and right revolution is more than 90 degree, the first solenoid directional control valve 21 and the second solenoid directional control valve 22 have control signal, and thus displacement pickup 6 has signal.When forward and reverse traveling shifter breaks down, by the spool displacement signal combination that the degreeof turn signal that detects angular transducer and displacement pickup 6 detect, forward and reverse transfer valve 2 can be gone out whether correctly perform control signal by comprehensive descision, such as, when angular transducer detects that left and right revolution is no more than 90 degree, but displacement pickup 6 all has signal, illustrate that the first solenoid directional control valve 21 and the second solenoid directional control valve 22 break down; When angular transducer detects that left and right revolution is more than 90 degree, but one of them displacement pickup 6 has signal, another no signal, illustrates that the solenoid directional control valve of displacement pickup 6 correspondence of no signal breaks down, by that analogy.Fault can also be reported to the police by buzzer phone in addition.This device reduces forward and reverse fault rate travelled when switching, and once break down, can carry out fault localization, warns operating personal in time, effectively improve the reliability in forward and reverse driving process and safety before manipulation travels.
Fig. 2 is the hydraulic system principle figure of another embodiment of the forward and reverse traveling shifter of the utility model, wherein, forward and reverse transfer valve 2 comprises the 3rd solenoid directional control valve 23, be arranged on the first pilot operated directional control valve 24 in the oil circuit of right running motor 5 place and the control signal of the second pilot operated directional control valve the 25, three solenoid directional control valve 23 to the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25 be arranged in the oil circuit of left running motor 4 place switches.
Preferably, the 3rd solenoid directional control valve 23 is two-bit triplet solenoid directional control valves, and the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25 are two four-way pilot operated directional control valves.
In order to understand hydraulic work system principle better, the mark in Fig. 2 is made an explanation: oil inlet, the drain tap of the 3rd solenoid directional control valve 23 are respectively Pst, L; Oil inlet, the return opening of the first pilot operated directional control valve 24 are respectively P1, T1, and two actuator ports are respectively A1, B1; Oil inlet, the return opening of the second pilot operated directional control valve 25 are respectively P2, T2, and two actuator ports are respectively A2, B2; All the other identical marks repeat no more.
And in this kind of embodiment, forward and reverse transfer valve sensor group comprises: pressure sensor 7 and displacement pickup 6, pressure sensor 7 is connected on the oil circuit control of the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25, can detect the switching state of the 3rd solenoid directional control valve 23; Displacement pickup 6 is connected with the spool of the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25, can detect the switching state of the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25.
Below the principle of work of forward and reverse traveling shifter of this embodiment is set forth.
(1) when angular transducer detects that the left and right revolution of getting on or off the bus is no more than 90 degree, the 3rd solenoid directional control valve 23 is power failure state, and forward and reverse transfer valve 2 does not commutate, displacement pickup 6 and pressure sensor 7 no signal.(backward) manipulation travels maneuvering valve 1 forward, (returning) hydraulic fluid port P1, P2 (T1, T2) that enters of forward and reverse transfer valve 2 has pressure, because forward and reverse transfer valve 2 does not commutate, its actuator port A1, A2 (B1, B2) are communicated with P1, P2 (T1, T2) pressure, and be communicated with control port b1, b2 (a1, a2) of main reversing valve 3, upper (bottom) of main reversing valve 3 is acted on, realizes car load (backward) traveling forward.
(2) when angular transducer detects that the left and right of getting on or off the bus is turned round more than 90 degree, the 3rd solenoid directional control valve 23 is "on" position, and forward and reverse transfer valve 2 commutates.(backward) manipulation travels maneuvering valve 1 forward, (returning) hydraulic fluid port P1, P2 (T1, T2) that enters of forward and reverse transfer valve 2 has pressure, because forward and reverse transfer valve 2 commutates, its actuator port B1, B2 (A1, A2) mouth is communicated with P1, P2 (T1, T2) pressure, and be communicated with control port a1, a2 (b1, b2) of main reversing valve 3, the bottom of main reversing valve 3 (upper) is acted on, realizes car load (backward) traveling forward.
(3) when left and right revolution is no more than 90 degree, 3rd solenoid directional control valve 23 is "on" position, from oil inlet P st fuel feeding, now drain tap L ends, for the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25 provide pressure controling signal, pressure sensor 7 has signal, and the spool of the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25 produces displacement simultaneously, and displacement pickup 6 has signal.When forward and reverse traveling shifter breaks down, the pilot pressure signal that the spool displacement signal detected by the degreeof turn signal that detects angular transducer, displacement pickup 6 and pressure sensor 7 are detected combines, forward and reverse transfer valve 2 can be gone out whether correctly perform control signal by comprehensive descision, such as, when angular transducer detects that left and right revolution is no more than 90 degree, pressure sensor 7 no signal, position transduser 6 has signal, illustrates that the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25 break down; When detecting that when angular transducer left and right revolution is no more than 90 degree, pressure sensor 7 has signal, and position transduser 6 has signal, illustrates that the 3rd solenoid directional control valve 23 breaks down; When angular transducer detects that left and right revolution is more than 90 degree, pressure sensor 7 no signal, position transduser 6 has signal, illustrates that three valves in forward and reverse transfer valve 2 all break down, by that analogy.This device reduces forward and reverse fault rate travelled when switching, and effectively improves the reliability in forward and reverse driving process and safety.
And in this embodiment, forward and reverse transfer valve 2 adopts the mode of hydraulic control, the pilot control of main reversing valve 3 realizes commutation by the first pilot operated directional control valve 24 and the second pilot operated directional control valve 25, it controls the control that pilot port oil sources derives from same pilot control, avoid and electrically make both commutations problem or not, further reduce fault rate.
In addition, the utility model also provides a kind of hoisting crane, comprise above-mentioned forward and reverse traveling shifter, the detection module arranged in hydraulic efficiency pressure system in above-described embodiment is connected with the control end of forward and reverse transfer valve 2, the mode of operation of forward and reverse transfer valve 2 can be detected and control signal is provided, like this when hoisting crane carries out forward and reverse switching traveling, the pilot control oil circuit switch instances of main reversing valve is judged in advance, forward and reverse transfer valve is made can reliably to realize commutation according to control signal, when making (afterwards) forward promote to travel maneuvering valve, car load remains that forward (afterwards) travels, avoid because forward and reverse transfer valve fault causes car load cannot realize the phenomenon of commutation or pivot turn.This mode that the trouble point that may occur in system during commutation is monitored in advance, reduce fault rate, and can find in time the fault that system may occur, and keep in repair targetedly, improve the serviceability of forward and reverse traveling shifter, ensure that the safety of hoisting crane work.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And do not depart from the spirit of technical solutions of the utility model, all should be encompassed in the utility model request protection technical scheme scope in the middle of.
Claims (10)
1. a forward and reverse traveling shifter, it is characterized in that, comprising: control the traveling maneuvering valve (1) of travel direction, forward and reverse transfer valve (2), the left running motor (4) driving left crawler belt, the right running motor (5) driving right-hand track chiain, main reversing valve (3) and detection module;
Described forward and reverse transfer valve (2) is arranged on the oil circuit between described traveling maneuvering valve (1) and described main reversing valve (3), can the flow direction of oil circuit control of main reversing valve (3) described in switching controls;
Described main reversing valve (3) is connected with the actuator port of described left running motor (4) and described right running motor (5) respectively;
Described detection module is connected with the control end of described forward and reverse transfer valve (2), can detect the mode of operation of described forward and reverse transfer valve (2) and provide control signal.
2. forward and reverse traveling shifter according to claim 1, it is characterized in that, described detection module comprises: angular transducer and forward and reverse transfer valve sensor group,
Between described angular transducer is arranged on and gets on or off the bus, the relative rotating angle of getting on or off the bus can be detected;
Described forward and reverse transfer valve sensor group is arranged in valve body, can detect the mode of operation of described forward and reverse transfer valve (2).
3. forward and reverse traveling shifter according to claim 2, it is characterized in that, described forward and reverse transfer valve (2) comprising: be separately positioned on the first solenoid directional control valve (21) in described right running motor (5) and described left running motor (4) place oil circuit and the second solenoid directional control valve (22).
4. forward and reverse traveling shifter according to claim 3, it is characterized in that, described forward and reverse transfer valve sensor group comprises two displacement pickups (6), institute's displacement sensors (6) is connected with the spool of described first solenoid directional control valve (21) with described second solenoid directional control valve (22) respectively, can detect the switching state of described first solenoid directional control valve (21) and described second solenoid directional control valve (22).
5. forward and reverse traveling shifter according to claim 2, it is characterized in that, the second pilot operated directional control valve (25) that described forward and reverse transfer valve (2) comprises the 3rd solenoid directional control valve (23), is arranged on the first pilot operated directional control valve (24) in the oil circuit of described right running motor (5) place and is arranged in the oil circuit of described left running motor (4) place, the control signal of described 3rd solenoid directional control valve (23) to described first pilot operated directional control valve (24) and the second pilot operated directional control valve (25) switches.
6. forward and reverse traveling shifter according to claim 5, is characterized in that, described forward and reverse transfer valve sensor group comprises: pressure sensor (7) and displacement pickup (6),
Described pressure sensor (7) is connected on the oil circuit control of described first pilot operated directional control valve (24) and the second pilot operated directional control valve (25), can detect the switching state of described 3rd solenoid directional control valve (23);
Institute's displacement sensors (6) is connected with the spool of described first pilot operated directional control valve (24) and described second pilot operated directional control valve (25), can detect the switching state of described first pilot operated directional control valve (24) and described second pilot operated directional control valve (25).
7. the forward and reverse traveling shifter according to claim 3 or 4, is characterized in that, described first solenoid directional control valve (21) and described second solenoid directional control valve (22) are two four-way electromagnetic reversing valves.
8. the forward and reverse traveling shifter according to claim 5 or 6, it is characterized in that, described 3rd solenoid directional control valve (23) is two-bit triplet solenoid directional control valve, and described first pilot operated directional control valve (24) and described second pilot operated directional control valve (25) are two four-way pilot operated directional control valves.
9. forward and reverse traveling shifter according to claim 2, it is characterized in that, described detection module also comprises controller, and described controller receives the detection signal of described angular transducer and described forward and reverse transfer valve sensor group respectively, and exports control signal.
10. a hoisting crane, is characterized in that, comprise as arbitrary in claim 1 ~ 9 as described in forward and reverse traveling shifter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710933.5U CN204279682U (en) | 2014-11-24 | 2014-11-24 | Forward and reverse traveling shifter and hoisting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710933.5U CN204279682U (en) | 2014-11-24 | 2014-11-24 | Forward and reverse traveling shifter and hoisting crane |
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| Publication Number | Publication Date |
|---|---|
| CN204279682U true CN204279682U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420710933.5U Expired - Fee Related CN204279682U (en) | 2014-11-24 | 2014-11-24 | Forward and reverse traveling shifter and hoisting crane |
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| CN (1) | CN204279682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396400A (en) * | 2022-01-07 | 2022-04-26 | 中国商用飞机有限责任公司 | Actuator and actuating system |
-
2014
- 2014-11-24 CN CN201420710933.5U patent/CN204279682U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396400A (en) * | 2022-01-07 | 2022-04-26 | 中国商用飞机有限责任公司 | Actuator and actuating system |
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Granted publication date: 20150422 Termination date: 20191124 |