CN216807673U - Emptying and dragging-off preventing device for cable drum - Google Patents
Emptying and dragging-off preventing device for cable drum Download PDFInfo
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- CN216807673U CN216807673U CN202220216783.7U CN202220216783U CN216807673U CN 216807673 U CN216807673 U CN 216807673U CN 202220216783 U CN202220216783 U CN 202220216783U CN 216807673 U CN216807673 U CN 216807673U
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- cable drum
- cable
- hydraulic motor
- electromagnetic directional
- directional valve
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Abstract
The utility model discloses a cable drum emptying and breaking prevention device, which comprises an electromagnetic directional valve, a pressure transmitter, a hydraulic motor and a cable drum, wherein the electromagnetic directional valve is connected with the hydraulic motor through a hydraulic rubber tube; the controller controls the work of the electromagnetic directional valve through the on-off of the left walking electromagnet and the right walking electromagnet in the controller according to the pressure change information on the hydraulic rubber hose fed back by the pressure transmitter; the electromagnetic directional valve is used for controlling the hydraulic motor to rotate forwards or backwards, and the hydraulic motor is used for driving the cable drum to rotate forwards or backwards. The emptying and pulling prevention device for the cable drum is applied to a remote control travelling mechanism provided with the cable drum, can control the cable drum to freely reel and unwind cables, prevents the cables from emptying or pulling off, does not need operators to approach, avoids injury to the operators, and improves the efficiency of reeling and unwinding the cables.
Description
Technical Field
The utility model relates to the technical field of cable drums, in particular to an emptying and dragging prevention device for a cable drum.
Background
The running gear who has the cable drum in the existing market generally is cable drum hand control alone, and is not only inefficient, will be close to running gear during operation moreover, forms dangerous hidden danger to operating personnel. When the cable drum is reeled and reeled remotely, the cable drum is easily untimely to be reeled and reeled, and the cable is damaged.
The manual control of the cable drum needs to be close to the travelling mechanism for operation, the winding and unwinding length of the cable drum needs to be noticed in the movement process of the travelling mechanism, the winding and unwinding of the cable drum needs to be controlled while travelling, the proficiency of operators is high, and the cable drum is likely to be untimely in winding and unwinding during operation and damage the cable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an emptying and pulling prevention device for a cable drum, which is used for solving the problems in the prior art, controlling the cable drum to freely retract and release a cable, preventing the cable from emptying or pulling off, avoiding the approach of operators, avoiding the injury to the operators and improving the cable retracting efficiency.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a cable drum emptying and dragging prevention device, which comprises an electromagnetic directional valve, a pressure transmitter, a hydraulic motor and a cable drum, wherein the electromagnetic directional valve is connected with the hydraulic motor through a hydraulic rubber tube; the controller controls the work of the electromagnetic directional valve through the on-off of a left walking electromagnet and a right walking electromagnet in the controller according to the pressure change information on the hydraulic rubber hose fed back by the pressure transmitter; the electromagnetic directional valve is used for controlling the hydraulic motor to rotate forwards or backwards, and the hydraulic motor is used for driving the cable drum to rotate forwards or backwards.
Preferably, the relief pressure of the relief valve is set to 3.5 Mpa.
Preferably, the pressure transmitter can output 4-20mA current to the controller along with the pressure change, and the controller controls the electromagnetic directional valve to stop acting when the current exceeds 15 mA.
Compared with the prior art, the utility model has the following beneficial technical effects:
the emptying and pulling prevention device for the cable drum is applied to a remote control travelling mechanism provided with the cable drum, can control the cable drum to freely reel and unwind cables, prevents the cables from emptying or pulling off, does not need operators to approach, avoids injury to the operators, and improves the efficiency of reeling and unwinding the cables.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the cable drum anti-empty and anti-drag device;
FIG. 2 is a flow chart of controlling the on-off of the left and right traveling electromagnets by the controller when the cable drum rotates;
FIG. 3 is a schematic view showing the flow direction of hydraulic oil in the hydraulic hose when the remote controller controls the electromagnetic directional valve to be in the cable-discharging gear;
wherein, 1, the electromagnetic directional valve; 2, an overflow valve; 3, a pressure transmitter; 4 a hydraulic motor; 5, a cable drum; 6, a hydraulic rubber pipe; 7 left traveling electromagnet; 8, a right walking electromagnet; 9, a transformer; 10 switching power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The utility model aims to provide an emptying and pulling prevention device for a cable drum, which is used for solving the problems in the prior art, controlling the cable drum to freely retract and release a cable, preventing the cable from emptying or pulling off, avoiding the approach of operators, avoiding the injury to the operators and improving the cable retracting efficiency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-3, the present embodiment provides an emptying and pulling-off prevention device for a cable drum, wherein a remote controller controls a reversing of an electromagnetic directional valve 1 to control a hydraulic motor 4 to rotate forward and backward so as to control a cable drum 5 to take up and discharge a cable, the electromagnetic directional valve 1 is connected with the hydraulic motor 4 through a hydraulic rubber tube 6, a pressure transmitter 3 is installed in the middle of the electromagnetic directional valve 1, and an overflow valve 2 is installed on the electromagnetic directional valve 1. The rotation of the cable drum 5 is controlled by a left traveling electromagnet 7 and a right traveling electromagnet 8 in the controller, as shown in fig. 2. The overflow pressure of the overflow valve 2 is set to be 3.5Mpa, the pressure transmitter 3 can output 4-20mA current to the controller along with the pressure change, and when the current exceeds 15mA, the left and right traveling electromagnets stop acting.
When the remote controller controls the electromagnetic directional valve 1 to be in the cable-discharging gear, the flow direction of hydraulic oil in the hydraulic rubber hose 6 is as shown in fig. 3. The hydraulic motor 4 drives the cable reel 5 to rotate positively, the cable reel 5 discharges the cable through the self-provided idler wheel, if the cable is completely discharged, the cable reel 5 continues rotating positively to tension the cable in the opposite direction, the load of the hydraulic motor 4 is increased, after a certain pressure is reached, the output current of the pressure transmitter 3 is increased, the controller stops the left and right walking electromagnets and stops the rotation of the cable reel 5, and therefore the whole vehicle stops walking and the cable reel 5 stops moving.
When the remote controller controls the electromagnetic directional valve 1 to be in a position of a recovery cable, the hydraulic motor 4 drives the cable drum 5 to rotate reversely, the cable drum 5 rolls the cable into the drum through a self-contained roller, when the cable is recovered too fast, the cable forms a pulling force on the cable drum 5, the load of the hydraulic motor 4 is increased, the pressure of a hydraulic system is increased, when the pressure of the overflow valve 2 is set, the hydraulic system can overflow, the cable drum 5 stops the action of recovering the cable, and after the pressure of the hydraulic system is reduced, the cable drum 5 continues to recover the cable.
Through the two conditions, the emptying and dragging-off preventing condition of the cable is realized.
According to the cable drum anti-emptying and anti-dragging-off device, the cable drum 5 achieves two functions of preventing dragging-off of the recovered cable and stopping walking when the cable is emptied through hydraulic overflow and electro-hydraulic control, the efficiency of reeling and unreeling the cable by the cable drum 5 is improved, and dangerous factors caused by manual operation are avoided.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (3)
1. The utility model provides a cable drum prevents unloading and prevents dragging disconnected device which characterized in that: the hydraulic control system comprises an electromagnetic reversing valve, a pressure transmitter, a hydraulic motor and a cable drum, wherein the electromagnetic reversing valve is connected with the hydraulic motor through a hydraulic rubber tube, the pressure transmitter is installed on the hydraulic rubber tube, and an overflow valve is arranged on the electromagnetic reversing valve; the pressure transmitter is in electric signal connection with the controller, and a left traveling electromagnet and a right traveling electromagnet in the controller are used for controlling the electromagnetic directional valve to work; the electromagnetic directional valve is used for controlling the hydraulic motor to rotate forwards or backwards, and the hydraulic motor is used for driving the cable drum to rotate forwards or backwards.
2. The cable reel anti-empty and anti-snag device of claim 1, wherein: the overflow pressure of the overflow valve is set to be 3.5 Mpa.
3. The cable reel anti-empty and anti-snag device of claim 1, wherein: the pressure transmitter outputs 4-20mA current to the controller along with the pressure change, and when the current exceeds 15mA, the controller controls the electromagnetic directional valve to stop acting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220216783.7U CN216807673U (en) | 2022-01-26 | 2022-01-26 | Emptying and dragging-off preventing device for cable drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220216783.7U CN216807673U (en) | 2022-01-26 | 2022-01-26 | Emptying and dragging-off preventing device for cable drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216807673U true CN216807673U (en) | 2022-06-24 |
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ID=82066667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220216783.7U Active CN216807673U (en) | 2022-01-26 | 2022-01-26 | Emptying and dragging-off preventing device for cable drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216807673U (en) |
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2022
- 2022-01-26 CN CN202220216783.7U patent/CN216807673U/en active Active
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