CN211769958U - Winch follow-up control hydraulic system - Google Patents
Winch follow-up control hydraulic system Download PDFInfo
- Publication number
- CN211769958U CN211769958U CN201922121716.8U CN201922121716U CN211769958U CN 211769958 U CN211769958 U CN 211769958U CN 201922121716 U CN201922121716 U CN 201922121716U CN 211769958 U CN211769958 U CN 211769958U
- Authority
- CN
- China
- Prior art keywords
- follow
- reversing valve
- hoist
- motor
- speed reducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a hoist follow-up control hydraulic system, including motor, electric-hydraulic proportional reversing valve, first electromagnetic reversing valve, second electromagnetic reversing valve and speed reducer stopper, constitute follow-up control hydraulic circuit through the tube coupling between motor, electric-hydraulic proportional reversing valve and the first electromagnetic reversing valve, realize through the speed reducer that speed reduction drive is connected and realize the drive braking through the speed reducer stopper between motor and the hoist mechanism, pass through the tube coupling between speed reducer stopper and the second electromagnetic reversing valve. Through the hoist follow-up control hydraulic system of this application, between two hydraulic fluid ports of motor, form the return circuit through series connection electric-hydraulic proportional reversing valve and first electromagnetic directional valve to make the motor be in free state, when hoist and mount operation, enable hoist mechanism to realize with the function of heavy object follow-up whereabouts, and can adjust the speed of follow-up whereabouts, thereby saved the manual operation of heavy object whereabouts and improved the accuracy nature of heavy object whereabouts.
Description
Technical Field
The utility model relates to a hoist jack-up technical field, concretely relates to hoist servo control hydraulic system.
Background
Crawler cranes and automobile cranes are widely applied to ports, electric power, construction sites and other places and mainly perform operations such as hoisting equipment, emergency rescue, hoisting, rescue and the like. Under some special working conditions, the heavy object lifted by the crane is required to fall down along with the crane according to the requirement, and the falling speed is strictly required.
At present, a crawler crane and an automobile crane do not have the winch follow-up falling function generally, falling heavy objects are observed by operators and controlled in time, and therefore the crawler crane and the automobile crane are hard to use and difficult to control accurately.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a hoisting follow-up control hydraulic system, so that when hoisting operation is performed, the hoisting mechanism can realize the function of falling with the heavy object in follow-up manner, and the speed of falling in follow-up manner can be adjusted, thereby saving manual operation for falling the heavy object and improving the accuracy of falling the heavy object.
The utility model discloses an above-mentioned problem is solved to following technical means: the winch servo control hydraulic system comprises a motor, an electro-hydraulic proportional reversing valve, a first electromagnetic reversing valve, a second electromagnetic reversing valve and a speed reducer brake, wherein the motor, the electro-hydraulic proportional reversing valve and the first electromagnetic reversing valve are connected through a pipeline to form a servo control hydraulic loop, the motor and a winch mechanism are in speed reduction driving connection through a speed reducer, driving and braking are achieved through a speed reducer brake, and the speed reducer brake and the second electromagnetic reversing valve are connected through a pipeline.
And the second electromagnetic directional valve, the shuttle valve and the speed reducer brake are connected through pipelines.
Furthermore, the electro-hydraulic proportional directional valve, the first electromagnetic directional valve and the second electromagnetic directional valve are controlled to be opened and closed through a circuit with a switch.
Further, the switch is a rocker switch.
Further, the current flow of the electro-hydraulic proportional directional valve is controlled by a knob.
The utility model has the advantages that:
1. the application discloses hoist servo control hydraulic system, between two hydraulic fluid ports of motor, through establishing ties electric-hydraulic proportional reversing valve and first electromagnetic directional valve formation return circuit to make the motor be in free state, when hoist and mount operation, enable the function that hoist mechanism realized falling with the heavy object follow-up, do not need the lower way of manual operation heavy object.
2. The application discloses hoist servo control hydraulic system is through the electric current volume of adjusting the electro-hydraulic proportional directional valve to change the fluid flow that flows through servo control hydraulic circuit, adjust the slew velocity of motor with this, finally reached the purpose of adjusting hoist mechanism servo speed.
In a word, the winch follow-up control hydraulic system saves manual operation of falling of heavy objects and improves accuracy of falling of the heavy objects during winch hoisting operation, is simple in structure, reliable in performance and low in manufacturing cost, and is suitable for the winch hoisting system of a crawler crane and an automobile crane.
Drawings
The invention is further described with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the winch servo control hydraulic system of the present application includes a motor 5, an electro-hydraulic proportional directional valve 1, a first electromagnetic directional valve 2, a second electromagnetic directional valve 3, a shuttle valve 4 and a speed reducer brake 6, wherein the motor 5 and the winch mechanism are in speed reduction driving connection through a speed reducer and are in driving braking through the speed reducer brake 6. The speed reducer brake 6, the shuttle valve 4 and the second electromagnetic directional valve 3 are connected through pipelines, the second electromagnetic directional valve 3 ensures that the speed reducer brake is always opened in a follow-up state, and the shuttle valve 4 ensures that the follow-up function of the hoisting mechanism does not interfere with normal use.
The motor 5, the electro-hydraulic proportional reversing valve 1 and the first electromagnetic reversing valve 2 are connected through pipelines to form a follow-up control hydraulic loop, the current flow of the electro-hydraulic proportional reversing valve 1 is controlled through a knob, the current amount of the electro-hydraulic proportional reversing valve is adjusted through the knob, the oil flow flowing through the follow-up control hydraulic loop can be changed, the rotating speed of the motor 5 is adjusted, and the purpose of adjusting the follow-up speed of the hoisting mechanism is finally achieved. The electro-hydraulic proportional directional valve, the first electromagnetic directional valve and the second electromagnetic directional valve are controlled to be opened and closed through a circuit with switches, and the switches are rocker switches.
The specific following principle is detailed below:
when the follow-up function of the hoisting mechanism needs to be started, the electric-hydraulic proportional directional valve 1, the first electromagnetic directional valve 2 and the second electromagnetic directional valve 3 are all in a power-on state through a switch conduction circuit, two working oil ports of the motor 5 are communicated, an oil circuit of a follow-up control hydraulic circuit is conducted, the motor 5 is in a free state, meanwhile, the second electromagnetic valve 3 is powered on for reversing, the flow direction of pressure oil in a pipeline is changed, the pressure oil enters the speed reducer brake 6 through the shuttle valve 4, the speed reducer brake 6 is always kept in an open state, and the hoisting mechanism can descend along with the gravity of a heavy object in the state. The current magnitude of the electro-hydraulic proportional directional valve is adjusted through the knob, the oil flow passing through the motor 5 is changed, and the follow-up falling speed of the hoisting mechanism can be adjusted. When the follow-up function of the hoisting mechanism needs to be stopped, the circuit is disconnected through the switch, and the oil circuit of the follow-up control hydraulic circuit is disconnected. At this time, the pressure oil of the reducer brake 6 can be released through the shuttle valve 4, so that the hoisting mechanism can be in a hovering braking state.
To sum up, the hoist follow-up control hydraulic system of this application forms the return circuit through series connection electric-hydraulic proportional reversing valve and first electromagnetic directional valve between two hydraulic fluid ports of motor to make the motor be in free state, when hoist and mount operation, enable hoist mechanism to realize with the function of heavy object follow-up whereabouts, and can adjust the speed of follow-up whereabouts, thereby saved the manual operation of heavy object whereabouts and improved the accuracy nature of heavy object whereabouts.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. The utility model provides a hoist servo control hydraulic system which characterized in that: the hydraulic servo-actuated hydraulic control system comprises a motor, an electro-hydraulic proportional reversing valve, a first electromagnetic reversing valve, a second electromagnetic reversing valve and a speed reducer brake, wherein the motor, the electro-hydraulic proportional reversing valve and the first electromagnetic reversing valve are connected through a pipeline to form a servo control hydraulic loop, the motor and a hoisting mechanism are in speed reduction driving connection through a speed reducer, driving and braking are realized through the speed reducer brake, and the speed reducer brake is connected with the second electromagnetic reversing valve through a pipeline.
2. The hoist follow-up control hydraulic system according to claim 1, characterized in that: the second electromagnetic reversing valve, the shuttle valve and the speed reducer brake are connected through pipelines.
3. The hoist follow-up control hydraulic system according to claim 2, characterized in that: the electro-hydraulic proportional directional valve, the first electromagnetic directional valve and the second electromagnetic directional valve are controlled to be opened and closed through a circuit with a switch.
4. The hoist follow-up control hydraulic system according to claim 3, characterized in that: the switch is a rocker switch.
5. The hoist follow-up control hydraulic system according to any one of claims 1 to 4, characterized in that: and the current flow of the electro-hydraulic proportional directional valve is controlled by a knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922121716.8U CN211769958U (en) | 2019-11-29 | 2019-11-29 | Winch follow-up control hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922121716.8U CN211769958U (en) | 2019-11-29 | 2019-11-29 | Winch follow-up control hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211769958U true CN211769958U (en) | 2020-10-27 |
Family
ID=72961191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922121716.8U Active CN211769958U (en) | 2019-11-29 | 2019-11-29 | Winch follow-up control hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211769958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875552A (en) * | 2019-11-29 | 2021-06-01 | 山河智能装备股份有限公司 | Winch follow-up control hydraulic system |
-
2019
- 2019-11-29 CN CN201922121716.8U patent/CN211769958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875552A (en) * | 2019-11-29 | 2021-06-01 | 山河智能装备股份有限公司 | Winch follow-up control hydraulic system |
| CN112875552B (en) * | 2019-11-29 | 2024-05-17 | 山河智能装备股份有限公司 | Winch follow-up control hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104061212B (en) | Electric hydraulic control running system for bracket carrier | |
| CN102030280B (en) | Mine-hoist constant deceleration safety braking system and braking method thereof | |
| CN201857238U (en) | Constant deceleration safety braking system for mine hoist | |
| CN202827716U (en) | Steering electro-hydraulic control system for remote-control loader | |
| CN202379608U (en) | Boarding rotating hydraulic control system and crane provided with same | |
| CN103613021B (en) | Winch hydraulic control system and engineering machinery | |
| CN203319595U (en) | Crane hoisting hydraulic system and crane | |
| CN113511601B (en) | Rotary hydraulic system, engineering machine and rotary control method | |
| CN211769958U (en) | Winch follow-up control hydraulic system | |
| CN202970677U (en) | Long spiral drilling machine | |
| CN102701089A (en) | Engineering machine and arm falling safety control system of suspension arm of engineering machine | |
| CN203699758U (en) | Winch hydraulic system and engineering machinery | |
| CN114212714A (en) | Hydraulic system of crane | |
| CN102491216A (en) | Brake control valve unit and hosting hydraulic control system and crane having same | |
| CN102515025A (en) | Superstructure rotary hydraulic control system and crane with same | |
| CN206232360U (en) | A kind of two-stage brake hydraulic station for distinguishing different loads operating mode | |
| CN112875552A (en) | Winch follow-up control hydraulic system | |
| CN205204652U (en) | Improve electro -hydraulic control system of engineering machinery cantilever crane motion ride comfort | |
| CN204038903U (en) | Crane overload control device and crane | |
| CN112173994A (en) | Control valve unit, hydraulic control loop and engineering equipment with telescopic crane boom | |
| CN204124120U (en) | The emergency brake system of full hydraulic drive roller | |
| CN201272340Y (en) | hydraulic motor brake circuit | |
| CN115744632A (en) | Crane hydraulic control system and crane | |
| CN202379650U (en) | Brake control valve group and winding hydraulic control system and crane with same | |
| CN216589342U (en) | Oil circuit control system of punching equipment, hydraulic system and punching equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |