CN216807925U - Winch anti-collision device and workover rig comprising same - Google Patents
Winch anti-collision device and workover rig comprising same Download PDFInfo
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- CN216807925U CN216807925U CN202122899944.5U CN202122899944U CN216807925U CN 216807925 U CN216807925 U CN 216807925U CN 202122899944 U CN202122899944 U CN 202122899944U CN 216807925 U CN216807925 U CN 216807925U
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Abstract
The utility model discloses an anti-collision device of a winch, which comprises: a gas source; the collision prevention signal valve group comprises an air inlet and an air outlet, and the air inlet of the collision prevention signal valve group is connected to the air source; and a control end of the clutch pneumatic control valve is connected to an air outlet of the anti-collision signal valve set, and the clutch pneumatic control valve is configured to disengage the winch clutch when receiving the air flow provided by the anti-collision signal valve set. The utility model also discloses a workover rig comprising the winch anti-collision device. The anti-collision device for the winch has the advantages that the accurate braking function can be realized by using the simple pneumatic control loop, the operation is simple, the reliability is high, and the safety of workover treatment is ensured.
Description
Technical Field
The utility model relates to the field of control over winches of workover rigs, in particular to a winch anti-collision device and a workover rig comprising the winch anti-collision device.
Background
In the oil exploitation process, workover operation is one of the important links. Drawworks are one of the core components in a workover rig that performs workover operations. In workover operations, the lifting and lowering of an elevator or an oil pipe are mainly realized by means of the operation of a winch drum.
In the lifting operation, because the rotation speed of the winch is difficult to control, the safety accident that the traveling block collides with the overhead travelling crane can occur. Therefore, the workover rig is mostly provided with an anti-collision device, a common anti-collision device is an electronic anti-collision device, the electronic anti-collision device needs to be provided with a special power supply circuit and a special control circuit, the requirements on the reliability and the installation precision of electronic elements are strict, the production cost is high, and the electronic anti-collision device is difficult to judge when a fault occurs and is difficult to maintain.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the utility model provides a winch anti-collision device which has an overwinding/anti-collision protection function, when the winch is required to brake but the brake is not implemented due to misoperation or failure of a winch control system in the process of lifting a heavy object by using a winch hook/elevator, a passive anti-collision signal valve arranged at an overhead travelling crane or an overwinding valve arranged on the winch act due to external force collision, so that a gas circuit is communicated, and a gas source opens a clutch gas control valve through the passive anti-collision signal valve, so that a winch clutch is emergently disengaged to cut off the connection between the winch and a power source. Meanwhile, the disc brake emergency stop valve is closed by the airflow output by the passive collision prevention signal valve, and the connection between the air source and the electromagnetic reversing air valve of the disc brake cylinder is cut off, so that the working clamp/safety clamp simultaneously acts to brake the winch disc, and the emergency brake is realized.
According to a first aspect of the present invention, there is provided a winch anti-collision device, comprising:
a gas source;
the collision prevention signal valve group comprises an air inlet and an air outlet, and the air inlet of the collision prevention signal valve group is connected to the air source; and
the control end of the clutch pneumatic control valve is connected to the air outlet of the anti-collision signal valve group, and the clutch pneumatic control valve is configured to disconnect a winch clutch when receiving the air flow provided by the anti-collision signal valve group.
According to an alternative embodiment, the crash proof signal valve block comprises:
the air inlet of the passive anti-collision signal valve is connected to the air source;
the air inlet of the active anti-collision signal valve is connected to the air source; and
and a first air inlet of the first shuttle valve is connected to an air outlet of the passive anti-collision signal valve, a second air inlet of the first shuttle valve is connected to an air outlet of the active anti-collision signal valve, and an air outlet of the first shuttle valve is connected to a control end of the clutch pneumatic control valve.
According to an optional embodiment, the passive anti-collision signal valve is an overhead traveling crane anti-collision signal valve or an overwinding anti-collision signal valve.
According to an alternative embodiment, the winch anti-collision device further comprises:
the electromagnetic valve is arranged between the air source and an air inlet of the anti-collision signal valve bank; and/or
And the control end of the disc brake emergency stop valve is connected to the air outlet of the anti-collision signal valve bank, and the disc brake emergency stop valve is configured to provide brake hydraulic pressure for a disc brake cylinder of the winch when receiving the air flow provided by the anti-collision signal valve bank.
According to an alternative embodiment, the winch anti-collision device further comprises:
and the air horn is connected to the air outlet of the anti-collision signal valve group.
According to an alternative embodiment, the winch anti-collision device further comprises:
and the pressure sensor is arranged on the air supply pipeline between the air source and the air inlet of the anti-collision signal valve group.
According to an alternative embodiment, the winch anti-collision device further comprises:
a second shuttle valve disposed between an outlet of the clutch pneumatic control valve and the winch clutch.
According to a second aspect of the utility model, there is also provided a workover rig comprising a drawworks anti-collision device as described above.
The winch disc brake device has the advantages that when misoperation or system fault occurs in the well repair operation, the winch disc can be timely braked to be dead and the load is stopped at the original position, so that the situation that the winch runs continuously to bump other equipment or operators under the fault condition is avoided, and the safety of the well repair operation is ensured. In addition, the winch anti-collision device can realize an accurate braking function by utilizing a simple pneumatic control loop, and is simple to operate and high in reliability.
Drawings
Other features and advantages of the apparatus of the present invention will be apparent from, or are more particularly, described in the accompanying drawings, which are incorporated herein, and the following detailed description of the utility model, which together serve to explain certain principles of the utility model.
FIG. 1 shows a schematic view of a winch anti-collision device according to an exemplary embodiment of the present invention.
Detailed Description
The winch anti-collision device and the control principle thereof according to the present invention will be described below by way of example with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention to those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Rather, it is contemplated that the utility model may be practiced with any combination of the following features and elements, whether or not they relate to different embodiments. Thus, the following aspects, features, embodiments and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly recited in a claim(s).
FIG. 1 shows a schematic view of a winch anti-collision device according to an exemplary embodiment of the present invention. The winch anti-collision device comprises an anti-collision signal valve group 1 for sensing a collision signal, wherein the anti-collision signal valve group 1 is provided with an air inlet and an air outlet, and when the collision signal is sensed, the anti-collision signal valve group 1 is communicated with air flow from an air source 3.1.
In addition, the winch anti-collision device can also comprise a clutch pneumatic control valve 5.1 connected to the air outlet pipeline of the anti-collision signal valve group 1, and the control end of the clutch pneumatic control valve 5.1 is connected to the air outlet of the anti-collision signal valve group.
As can be understood by those skilled in the art, the air inlet of the anti-collision signal valve group 1 can be directly communicated with the air source 3.1; or, an additional solenoid valve 2.1 may be disposed between the air inlet of the anti-collision signal valve group 1 and the air source 3.1, that is, the air outlet of the solenoid valve 2.1 is connected to the air inlet of the anti-collision signal valve group, and the air inlet of the solenoid valve 2.1 is connected to the air source 3.1.
The winch anti-collision device according to the utility model is effective only when the solenoid valve 2.1 is closed; when the electromagnetic valve 2.1 is disconnected, the winch anti-collision device fails, and no matter whether a collision signal occurs or not, the clutch pneumatic control valve 5.1 is not triggered to act.
Specifically, under a normal state, the electromagnetic valve 2.1 is closed, the air source 3.1 and the collision-prevention signal valve group 1 are communicated with each other, and when a collision signal is sensed, the collision-prevention signal valve group 1 further transmits air flow to the clutch pneumatic control valve 5.1 to control the clutch pneumatic control valve 5.1 to disengage the winch clutch 7.1, so that the connection between the winch 8.1 and a power source (the power source is particularly fuel oil) of the winch is cut off.
In addition, a pressure sensor 4.1 may be further disposed between the air source 3.1 and the air inlet of the anti-collision signal valve group 1, particularly between the air outlet of the solenoid valve 2.1 and the air inlet of the anti-collision signal valve group 1, for sensing the air flow pressure on the corresponding air supply line.
Specifically, the anti-collision signal valve group 1 can be composed of a passive anti-collision signal valve 1.1, an active anti-collision signal valve 1.2 and a first shuttle valve 1.3. The air inlet of the passive anti-collision signal valve 1.1 and the air inlet of the active anti-collision signal valve 1.2 are used as the common air inlet of the anti-collision signal valve group 1 and are connected to the air source 3.1 or the air outlet of the electromagnetic valve 2.1. The first air inlet of the first shuttle valve 1.3 is connected to the air outlet of the passive collision prevention signal valve 1.1, and the second air inlet of the first shuttle valve 1.3 is connected to the air outlet of the active collision prevention signal valve 1.2. And the air outlet of the first shuttle valve 1.3 is used as the air outlet of the collision-proof signal valve group 1 and is connected to the control end of the clutch pneumatic control valve 5.1.
The passive collision-prevention signal valve 1.1 can be a passive collision-prevention signal valve installed at the overhead travelling crane or an overwinding valve installed on the winch, and automatically switches on the air source 3.1 when sensing a corresponding collision signal.
The active anti-collision signal valve 1.2 can be triggered manually, for example, when an operator observes an imminent collision in a workover operation, the active anti-collision signal valve 1.2 can be triggered actively.
It will be appreciated by those skilled in the art that either of the passive crash proof signal valve 1.1 and the active crash proof signal valve 1.2 may be activated to enable the air supply and thereby control the clutch pneumatic control valve 5.1 to disengage the winch clutch 7.1. In particular, when the clutch pneumatic control valve 5.1 receives an air flow, it automatically closes to cut off the hydraulic pressure supplied to the winch clutch 7.1.
In addition, a second shuttle valve 6.1 may be further disposed between the outlet of the clutch pneumatic control valve 5.1 and the winch clutch 7.1, and an input port of the second shuttle valve 6.1 is controlled by the clutch pneumatic control valve 5.1 to cut off the winch power source when the clutch pneumatic control valve 5.1 is triggered. The other input port of the second shuttle valve 6.1 may be controlled by the winch controller to shut off the winch power supply based on winch operating conditions.
The winch anti-collision device according to the present embodiment may further include an air horn 11.1 connected to the air outlet of the anti-collision signal valve block 1, particularly the first shuttle valve 1.3. When a collision signal is sensed, the collision-prevention signal valve group 1 is switched on the air source 3.1, so that the air horn 11.1 is triggered to give an alarm.
The winch anti-collision device according to the embodiment may further include a disc brake emergency stop valve 9.1, a control end of the disc brake emergency stop valve 9.1 is connected to an air outlet of the anti-collision signal valve bank, and the disc brake emergency stop valve 9.1 is configured to provide braking hydraulic pressure to a disc brake cylinder 10.1 of the winch to brake the winch disc when receiving the air flow provided by the anti-collision signal valve bank.
The winch anti-collision device has the overwinding/anti-collision protection function, when the winch is braked but not braked due to misoperation or failure of a winch control system in the process of lifting heavy objects by using the winch hook/elevator, a passive anti-collision signal valve arranged at an overhead travelling crane or an overwinding valve arranged on the winch act due to external force collision, so that a gas circuit is communicated, and a gas source opens a clutch gas control valve through the passive anti-collision signal valve, so that a winch clutch is emergently disengaged to cut off the connection between the winch and a power source. Meanwhile, the disc brake emergency stop valve is closed by the airflow output by the passive collision prevention signal valve, and the connection between the air source and the electromagnetic reversing air valve of the disc brake cylinder is cut off, so that the working clamp/safety clamp simultaneously acts to brake the winch disc, and the emergency brake is realized.
The winch anti-collision device has the advantages that when misoperation or system fault occurs in the well repairing operation, the winch disc can be timely braked to stop the load at the original position, so that the situation that other equipment or operators are impacted due to the fact that the winch continues to operate under the fault condition is avoided, and the safety of the well repairing operation is ensured. In addition, the winch anti-collision device can realize an accurate braking function by utilizing a simple pneumatic control loop, and is simple to operate and high in reliability.
It will be understood by those skilled in the art that the term "connected" in the present invention encompasses both an "electrical connection" relationship between electrical components and a "fluid communication" relationship between pneumatically or hydraulically controlled components. Furthermore, terms such as "first", "second", and the like do not denote an order of components or values in time, space, size, and the like, but are merely used to distinguish the components or values; words such as "comprise", "comprises", etc. mean that, in addition to having elements which are directly and explicitly stated in the description and claims, the solution of the utility model does not exclude other elements which are not directly or explicitly stated.
Although the present invention has been described with reference to the preferred embodiments, it is not to be limited thereto. Various changes and modifications can be made without departing from the spirit and scope of the utility model, and the scope of the utility model should be determined by the appended claims.
Claims (8)
1. The winch anti-collision device is characterized by comprising:
a gas source (3.1);
the anti-collision signal valve group (1) comprises an air inlet and an air outlet, and the air inlet of the anti-collision signal valve group (1) is connected to the air source (3.1); and
the winch clutch comprises a clutch pneumatic control valve (5.1), wherein a control end of the clutch pneumatic control valve (5.1) is connected to an air outlet of the anti-collision signal valve group, and the clutch pneumatic control valve (5.1) is configured to enable a winch clutch (7.1) to be disengaged when air flow provided by the anti-collision signal valve group is received.
2. The winch anti-collision device according to claim 1, characterized in that the anti-collision signal valve group (1) comprises:
the passive anti-collision signal valve (1.1), wherein the air inlet of the passive anti-collision signal valve (1.1) is connected to the air source (3.1);
the active anti-collision signal valve (1.2), the air inlet of the active anti-collision signal valve (1.2) is connected to the air source (3.1); and
the first air inlet of the first shuttle valve (1.3) is connected to the air outlet of the passive collision prevention signal valve (1.1), the second air inlet of the first shuttle valve (1.3) is connected to the air outlet of the active collision prevention signal valve (1.2), and the air outlet of the first shuttle valve (1.3) is connected to the control end of the clutch pneumatic control valve (5.1).
3. The winch anti-collision device according to claim 2, characterized in that the passive anti-collision signal valve (1.1) is an overhead crane anti-collision signal valve or an overwinding anti-collision signal valve.
4. The winch collision prevention device according to any one of claims 1 to 3, further comprising:
the electromagnetic valve (2.1), the electromagnetic valve (2.1) is arranged between the air source (3.1) and an air inlet of the anti-collision signal valve group (1); and/or
The brake system comprises a disc brake emergency stop valve (9.1), wherein the control end of the disc brake emergency stop valve (9.1) is connected to the air outlet of the collision prevention signal valve bank, and the disc brake emergency stop valve is configured to provide brake hydraulic pressure for a disc brake cylinder (10.1) of the winch when receiving air flow provided by the collision prevention signal valve bank.
5. The winch collision prevention device according to any one of claims 1 to 3, further comprising:
the air horn (11.1), air horn (11.1) is connected to prevent bumping the gas outlet of signal valves.
6. The winch collision prevention device according to any one of claims 1 to 3, further comprising:
pressure sensor (4.1), pressure sensor (4.1) set up air supply line between air supply (3.1) and the air inlet of preventing bumping signal valves.
7. The winch collision prevention device according to any one of claims 1 to 3, further comprising:
a second shuttle valve (6.1), the second shuttle valve (6.1) being disposed between an outlet of the clutch pneumatic control valve (5.1) and a winch clutch.
8. A workover rig comprising a winch bump guard according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899944.5U CN216807925U (en) | 2021-11-24 | 2021-11-24 | Winch anti-collision device and workover rig comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899944.5U CN216807925U (en) | 2021-11-24 | 2021-11-24 | Winch anti-collision device and workover rig comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216807925U true CN216807925U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122899944.5U Active CN216807925U (en) | 2021-11-24 | 2021-11-24 | Winch anti-collision device and workover rig comprising same |
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| Country | Link |
|---|---|
| CN (1) | CN216807925U (en) |
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- 2021-11-24 CN CN202122899944.5U patent/CN216807925U/en active Active
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