CN108341356B - Emergency system for crane and crane - Google Patents
Emergency system for crane and crane Download PDFInfo
- Publication number
- CN108341356B CN108341356B CN201810374362.5A CN201810374362A CN108341356B CN 108341356 B CN108341356 B CN 108341356B CN 201810374362 A CN201810374362 A CN 201810374362A CN 108341356 B CN108341356 B CN 108341356B
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- Prior art keywords
- crane
- control valve
- oil
- power
- valve
- Prior art date
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Links
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 57
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
- B66C23/86—Slewing gear hydraulically actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
Abstract
The invention relates to the technical field of cranes, in particular to an emergency system for a crane and the crane. The emergency system for a crane comprises: the control valve, the power source and the oil tank; the oil tank is connected with the power source, the power source is connected with the control valve, and the control valve can be connected with the actuating element of the crane when the actuating element fails in power, so that the actuating element can be ensured to normally act under an emergency condition. For example: the actions such as lifting amplitude, lifting hook and rotation can be realized under the emergency condition that the power of the crane is lost. Moreover, the invention adopts a modular emergency system, can be carried along with a vehicle when the space arrangement of the crane is insufficient, and can realize quick disassembly and assembly when in use.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to an emergency system for a crane and the crane.
Background
At present, a single-shot mobile crane shares a driving device for getting on and off during running and hoisting operation; when the vehicle runs, the engine is connected with the clutch, torque is transmitted through the gearbox, the transmission shaft, the transfer case and the driving shaft, when the vehicle runs, the power takeoff of the lower gear box is started, the engine is connected with the clutch, and torque is transmitted through the gearbox, the transmission shaft, the transfer case, the hydraulic pump, the hydraulic oil pipe, the central revolving body, the upper hydraulic valve and the hydraulic motor. When the engine fails to work, the power source is lost when the engine gets on or off, the operation is interrupted, potential safety hazards exist, and in certain special cases, the engine can be overhauled only by lifting the lifting arm by other machines, the operation danger is complex, and certain economic loss is brought. For example: after the power transmission system of the single-shot mobile crane fails, the maintenance is realized by means of other hoisting machinery, and the operation is complicated; after the power transmission system of the single-shot mobile crane is in fault, maintenance is realized by means of other hoisting machinery, and the operation is complex. It can be seen that in this particular case there is a need for an emergency system for the crane.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an emergency system for a crane and the crane, so as to solve the technical problems that when an executive component of the crane fails in work, the operation is interrupted and potential safety hazards exist in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect, the invention provides an emergency system for a crane, comprising: the control valve, the power source and the oil tank; the oil tank is connected with the power source, the power source is connected with the control valve, and the control valve can be connected with an actuating element of the crane when the actuating element fails in power.
As a further technical solution, the actuating element of the crane includes: the hoisting mechanism is provided with a hoisting pipeline and a hoisting brake pipeline; the control valve can be respectively connected with the hoisting pipeline and the hoisting brake pipeline when the power of the hoisting mechanism fails.
As a further technical solution, the actuating element of the crane includes: the amplitude variation mechanism is provided with an amplitude variation pipeline, and the control valve can be connected with the amplitude variation pipeline when the power of the amplitude variation mechanism fails.
As a further technical solution, the actuating element of the crane includes: a swing mechanism having a swing line and a swing brake line; the control valve can be connected with the slewing pipe and the slewing brake pipe respectively when the power of the slewing mechanism fails.
As a further embodiment, the slewing mechanism further has an oil return line, which is connected to the oil tank.
As a further technical solution, the control valve is connected with a plurality of joint assemblies for connecting with the actuating elements of the crane.
As a further technical scheme, the control valve is provided with an oil inlet connected with the power source, a first oil outlet connected with the oil inlet and a second oil outlet, wherein the first oil outlet is connected with one joint component, and the second oil outlet is connected with the other joint component; the oil inlet path is provided with a one-way valve, the first oil outlet path is provided with a first protection valve, and the second oil outlet path is provided with a second protection valve.
As a further technical scheme, the control valve is further provided with an oil return path connected with the oil tank, and a third protection valve is arranged on the oil return path.
As a further technical scheme, the power source is an electric motor connected pump or a hand pump or an external power pump station.
In a second aspect, the invention provides a crane, characterized by comprising the emergency system for a crane. The emergency system for a crane comprises: the control valve, the power source and the oil tank; the oil tank is connected with the power source, the power source is connected with the control valve, and the control valve can be connected with an actuating element of the crane when the actuating element fails in power.
By adopting the technical scheme, the invention has the following beneficial effects:
the invention provides an emergency system for a crane, wherein a control valve can be connected with an actuating element of the crane when the actuating element fails in power, so that the actuating element can be ensured to normally act in an emergency condition. For example: the actions such as lifting amplitude, lifting hook and rotation can be realized under the emergency condition that the power of the crane is lost. Moreover, the invention adopts a modular emergency system, can be carried along with a vehicle when the space arrangement of the crane is insufficient, and can realize quick disassembly and assembly when in use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings needed in the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a hydraulic schematic diagram of an emergency system of a crane according to an embodiment of the present invention.
Icon: 1-a power source; 2-a control valve; a 3-joint assembly; 4-an amplitude variation pipeline; 5-winding pipelines; 6-a hoisting brake pipe; 7-a rotary pipeline; 8-an oil return pipeline; 9-an oil tank; 10-oil return path.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Example 1
As shown in connection with fig. 1, the present embodiment provides an emergency system for a crane, which includes: a control valve 2, a power source 1 and an oil tank 9; the oil tank 9 is connected with the power source 1, the power source 1 is connected with the control valve 2, and the control valve 2 can be connected with the actuating element when the actuating element of the crane fails in power, so that the actuating element can be ensured to normally act under an emergency condition, and the technical problem that when the actuating element of the crane fails in work, the operation is interrupted and potential safety hazards exist in the prior art is solved.
In this embodiment, as a further technical solution, the executing element of the crane includes: a hoisting mechanism having a hoisting line 5 and a hoisting brake line 6; the control valve 2 can be connected to the hoisting line 5 and the hoisting brake line 6, respectively, in the event of a failure of the hoisting mechanism power. The power of the power source 1 is transmitted to the winch through the control valve 2 to open the winch brake, and the power is transmitted to the winch through the winch pipeline 5 to realize the lifting hook action of the winch.
In this embodiment, as a further technical solution, the executing element of the crane includes: the amplitude variation mechanism is provided with an amplitude variation pipeline 4, and the control valve 2 can be connected with the amplitude variation pipeline 4 when the power of the amplitude variation mechanism fails. Wherein, the power of the power source 1 is transmitted to the amplitude changing pipeline 4 through the control valve 2 to realize the amplitude lifting action of the crane.
In this embodiment, as a further technical solution, the executing element of the crane includes: a swing mechanism having a swing line 7 and a swing brake line; the control valve 2 can be connected to the swing line 7 and the swing brake line, respectively, in the event of a power failure of the swing mechanism. The power control valve 2 of the power source 1 is transmitted to the rotary pipeline 7 to realize the crane boarding rotary motion.
Preferably, the slewing mechanism further has an oil return line 8, and the oil return line 8 is connected to the oil tank 9.
Therefore, the emergency system for the crane provided by the embodiment can realize the actions such as lifting amplitude, lifting hook and rotation under the emergency condition that the power of the crane is lost.
In this embodiment, as a further technical solution, the control valve 2 is connected with several joint assemblies 3 for connecting with the actuating elements of the crane. The number of the joint assemblies 3 is not limited and can be flexibly set according to practical needs. The quick connector is connected with the quick connector remained in each action of the crane, so that the lifting and falling actions, the winding actions and the turning actions of the crane arm are realized.
The specific form of the control valve 2 is not limited, and is exemplified in the following specific manner.
Preferably, the control valve 2 is provided with an oil inlet connected with the power source 1, a first oil outlet connected with the oil inlet and a second oil outlet, the first oil outlet is connected with one joint component 3, and the second oil outlet is connected with the other joint component 3, so that the operation is simple, and the quick access system can be realized; the oil inlet path is provided with a one-way valve, the first oil outlet path is provided with a first protection valve, and the second oil outlet path is provided with a second protection valve. Wherein, first protection valve is: the pressure reducing valve has the function of pressure grading and carries out secondary partial pressure on the system. The second protection valve is: and the stop valve is used for controlling the on-off of the oil way.
Furthermore, the control valve 2 further has an oil return path 10 connected to the oil tank 9, and a third protection valve is disposed on the oil return path 10. The third protection valve is an overflow valve, provides overflow protection for the system, and opens the overflow valve to release pressure when the pressure of the system pipeline exceeds the allowable range.
In this embodiment, the power source 1 is an electric motor connected with a pump or a hand pump or an external power pump station. That is, the power source 1 (emergency pump) may be driven by a manual or external power source, or a crane structure having such an emergency operation function.
In summary, the present embodiment provides an emergency system for a crane, in which a control valve 2 can be connected to an actuator of the crane when the actuator fails in power, so as to ensure that the actuator performs normal actions in an emergency situation. For example: the actions such as lifting amplitude, lifting hook and rotation can be realized under the emergency condition that the power of the crane is lost. Moreover, the invention adopts a modular emergency system, can be carried along with a vehicle when the space arrangement of the crane is insufficient, and can realize quick disassembly and assembly when in use.
Example two
In this embodiment, a crane is provided, which includes the emergency system for a crane described in embodiment one. As shown in connection with fig. 1, the emergency system comprises: a control valve 2, a power source 1 and an oil tank 9; the oil tank 9 is connected with the power source 1, the power source 1 is connected with the control valve 2, and the control valve 2 can be connected with the actuating element when the actuating element of the crane fails in power, so that the actuating element can be ensured to normally act under an emergency condition, and the technical problem that when the actuating element of the crane fails in work, the operation is interrupted and potential safety hazards exist in the prior art is solved.
Of course, the crane also includes other necessary basic components, and the following mainly describes the actuator that is required for use with the emergency system.
In this embodiment, the executing element of the crane includes: a hoisting mechanism having a hoisting line 5 and a hoisting brake line 6; the control valve 2 can be connected to the hoisting line 5 and the hoisting brake line 6, respectively, in the event of a failure of the hoisting mechanism power. The power of the power source 1 is transmitted to the winch through the control valve 2 to open the winch brake, and the power is transmitted to the winch through the winch pipeline 5 to realize the lifting hook action of the winch.
In this embodiment, the executing mechanism of the crane includes: the amplitude variation mechanism is provided with an amplitude variation pipeline 4, and the control valve 2 can be connected with the amplitude variation pipeline 4 when the power of the amplitude variation mechanism fails. Wherein, the power of the power source 1 is transmitted to the amplitude changing pipeline 4 through the control valve 2 to realize the amplitude lifting action of the crane.
In this embodiment, the executing element of the crane includes: a swing mechanism having a swing line 7 and a swing brake line; the control valve 2 can be connected to the swing line 7 and the swing brake line, respectively, in the event of a power failure of the swing mechanism. The power control valve 2 of the power source 1 is transmitted to the rotary pipeline 7 to realize the crane boarding rotary motion.
Preferably, the slewing mechanism further has an oil return line 8, and the oil return line 8 is connected to the oil tank 9.
Therefore, the emergency system for the crane provided by the embodiment can realize the actions such as lifting amplitude, lifting hook and rotation under the emergency condition that the power of the crane is lost.
In this embodiment, as a further technical solution, the control valve 2 is connected with several joint assemblies 3 for connecting with the actuating elements of the crane. The number of the joint assemblies 3 is not limited and can be flexibly set according to practical needs. The quick connector is connected with the quick connector remained in each action of the crane, so that the lifting and falling actions, the winding actions and the turning actions of the crane arm are realized.
The specific form of the control valve 2 is not limited, and is exemplified in the following specific manner.
Preferably, the control valve 2 is provided with an oil inlet connected with the power source 1, a first oil outlet connected with the oil inlet and a second oil outlet, the first oil outlet is connected with one joint component 3, and the second oil outlet is connected with the other joint component 3, so that the operation is simple, and the quick access system can be realized; the oil inlet path is provided with a one-way valve, the first oil outlet path is provided with a first protection valve, and the second oil outlet path is provided with a second protection valve. Wherein, first protection valve is: the pressure reducing valve has the function of pressure grading and carries out secondary partial pressure on the system. The second protection valve is: and the stop valve is used for controlling the on-off of the oil way.
Furthermore, the control valve 2 further has an oil return path 10 connected to the oil tank 9, and a third protection valve is disposed on the oil return path 10. The third protection valve is an overflow valve, provides overflow protection for the system, and opens the overflow valve to release pressure when the pressure of the system pipeline exceeds the allowable range.
In this embodiment, the power source 1 is an electric motor connected with a pump or a hand pump or an external power pump station. That is, the power source 1 (emergency pump) may be driven by a manual or external power source, or a crane structure having such an emergency operation function.
In summary, the present embodiment provides an emergency system for a crane, in which a control valve 2 can be connected to an actuator of the crane when the actuator fails in power, so as to ensure that the actuator performs normal actions in an emergency situation. For example: the actions such as lifting amplitude, lifting hook and rotation can be realized under the emergency condition that the power of the crane is lost. Moreover, the invention adopts a modular emergency system, can be carried along with a vehicle when the space arrangement of the crane is insufficient, and can realize quick disassembly and assembly when in use.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. An emergency system for a crane, comprising: the control valve, the power source and the oil tank; the oil tank is connected with the power source, the power source is connected with the control valve, and the control valve can be connected with an actuating element of the crane when the actuating element fails in power;
the control valve is provided with an oil inlet connected with the power source, a first oil outlet and a second oil outlet connected with the oil inlet, and an oil return connected with the oil tank, wherein the first oil outlet is connected with one joint component, and the second oil outlet is connected with the other joint component; the oil inlet path is provided with a one-way valve, and the first oil outlet path is provided with a first protection valve; the second oil outlet path is provided with a second protection valve, and the second protection valve is a stop valve and is used for controlling the on-off of an oil path; the oil return path is provided with a third protection valve which is an overflow valve, and when the pressure of the system pipeline exceeds the allowable range, the overflow valve is opened to release pressure.
2. The emergency system for a crane according to claim 1, wherein the actuator of the crane comprises: the hoisting mechanism is provided with a hoisting pipeline and a hoisting brake pipeline; the control valve can be respectively connected with the hoisting pipeline and the hoisting brake pipeline when the power of the hoisting mechanism fails.
3. The emergency system for a crane according to claim 1, wherein the actuator of the crane comprises: the amplitude variation mechanism is provided with an amplitude variation pipeline, and the control valve can be connected with the amplitude variation pipeline when the power of the amplitude variation mechanism fails.
4. The emergency system for a crane according to claim 1, wherein the actuator of the crane comprises: a swing mechanism having a swing line and a swing brake line; the control valve can be connected with the slewing pipe and the slewing brake pipe respectively when the power of the slewing mechanism fails.
5. The emergency system for a crane according to claim 4, wherein the swing mechanism further has an oil return line connected to the oil tank.
6. Emergency system for cranes according to any one of claims 1-5, wherein the control valve has several joint assemblies connected to it for connection to the actuators of the crane.
7. The emergency system for a crane according to claim 1, wherein the power source is an electric motor connected pump or a hand pump or an external power pump station.
8. A crane comprising an emergency system for a crane according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374362.5A CN108341356B (en) | 2018-04-24 | 2018-04-24 | Emergency system for crane and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374362.5A CN108341356B (en) | 2018-04-24 | 2018-04-24 | Emergency system for crane and crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108341356A CN108341356A (en) | 2018-07-31 |
| CN108341356B true CN108341356B (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374362.5A Active CN108341356B (en) | 2018-04-24 | 2018-04-24 | Emergency system for crane and crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN108341356B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592566B (en) * | 2018-10-26 | 2020-12-18 | 中船华南船舶机械有限公司 | Hydraulic emergency system of crane |
| CN111646366B (en) * | 2020-06-16 | 2022-03-22 | 三一汽车起重机械有限公司 | Emergency control device and control method |
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| CN201598104U (en) * | 2009-09-17 | 2010-10-06 | 上海彭浦机器厂有限公司 | Emergency braking system of chassis of pipe sling |
| JP2012207688A (en) * | 2011-03-29 | 2012-10-25 | Sumitomo (Shi) Construction Machinery Co Ltd | Emergency hydraulic driving device of hydraulic construction machine |
| CN202945012U (en) * | 2012-12-03 | 2013-05-22 | 中联重科股份有限公司 | Hydraulic system of hoisting mechanism and hoist |
| CN203476861U (en) * | 2013-06-21 | 2014-03-12 | 中联重科股份有限公司 | Emergency power system, and hoisting mechanism and hoisting equipment comprising same |
| CN205367511U (en) * | 2016-01-23 | 2016-07-06 | 国营海东造船厂 | Hydraulic crane's oil piping system |
| CN208054774U (en) * | 2018-04-24 | 2018-11-06 | 三一汽车起重机械有限公司 | A kind of emergency system and crane for crane |
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2018
- 2018-04-24 CN CN201810374362.5A patent/CN108341356B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598104U (en) * | 2009-09-17 | 2010-10-06 | 上海彭浦机器厂有限公司 | Emergency braking system of chassis of pipe sling |
| JP2012207688A (en) * | 2011-03-29 | 2012-10-25 | Sumitomo (Shi) Construction Machinery Co Ltd | Emergency hydraulic driving device of hydraulic construction machine |
| CN202945012U (en) * | 2012-12-03 | 2013-05-22 | 中联重科股份有限公司 | Hydraulic system of hoisting mechanism and hoist |
| CN203476861U (en) * | 2013-06-21 | 2014-03-12 | 中联重科股份有限公司 | Emergency power system, and hoisting mechanism and hoisting equipment comprising same |
| CN205367511U (en) * | 2016-01-23 | 2016-07-06 | 国营海东造船厂 | Hydraulic crane's oil piping system |
| CN208054774U (en) * | 2018-04-24 | 2018-11-06 | 三一汽车起重机械有限公司 | A kind of emergency system and crane for crane |
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| CN108341356A (en) | 2018-07-31 |
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