CN201864515U - Device for controlling excessive release of steel wire rope when winch floats - Google Patents
Device for controlling excessive release of steel wire rope when winch floats Download PDFInfo
- Publication number
- CN201864515U CN201864515U CN2010205806420U CN201020580642U CN201864515U CN 201864515 U CN201864515 U CN 201864515U CN 2010205806420 U CN2010205806420 U CN 2010205806420U CN 201020580642 U CN201020580642 U CN 201020580642U CN 201864515 U CN201864515 U CN 201864515U
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- steel rope
- steel wire
- wire rope
- motor
- elevator
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The utility model discloses a device for controlling excessive release of a steel wire rope when a winch floats, which comprises a motor (1). A floating control valve (2) and a counterbalance valve (7) or a check valve with a certain opening pressure are connected in series between oil circuits of the lifting side and the lowering side of the motor. An energy accumulator (6) or an oil source pump is connected between the floating control valve (2) and the counterbalance valve (7) or the check valve with a certain opening pressure. When the winch is in a floating state, the steel wire rope still can keep a certain pretightening tension so that the faults that the rope of the winch is disordered and is loosened cannot be generated, thereby prolonging the service life of the steel wire rope.
Description
Technical field
The utility model relate to a kind of when controlling elevator and floating steel rope cross the device of putting.
Background technology
As shown in Figure 1, on rotary drilling rig, drilling tool carries out operation at the bottom of transferring to the hole by elevator, when utilizing elevator to be put into drilling tool near the position at the bottom of the hole, the operator opens the control cock 2 of floating, the hydraulic circuit short circuit of control motor 1, motor two ends oil pressure pressure equates, under the application force of drilling tool 5 deadweights, elevator 3 drives revolution and transfers, and drilling tool drops at the bottom of the hole, this moment, the weight of drilling tool was born at the bottom of by the hole, elevator is in free state, is referred to as the elevator quick condition, can begin under this state to creep into.But in drilling process, steel rope 4 is sagging sometimes can occur putting phenomenon, makes the steel rope bending, and when steel rope bends to when touching the surface of drill stem state, the relative steel rope of drilling tool rotates and just caused steel rope undue wear and broken lot to damage; Moreover when elevator promoted once more, steel rope was crossed and is put, and can cause to twine chaotic on the reel and the damage steel rope.So all caused the fault of both having damaged service life that do not reach of steel rope.Before the utility model, mainly observe by operator's attention, timely operation, steel rope is crossed and is put phenomenon when preventing the elevator quick condition, but has increased operator's labour intensity.
The utility model content
Technical problem to be solved in the utility model provides a kind of under the state that elevator floats, and avoids steel rope to cross and puts the phenomenon generation, thereby play the effect of protecting steel rope, and steel rope was crossed the device of putting when the control elevator of reduction operator intensity floated.
In order to solve the problems of the technologies described above, steel rope was crossed the device of putting when the control elevator that the utility model provides floated, comprise motor and unsteady control cock, on described unsteady control cock and described motor, carry the check valve that is in series with back pressure valve in the side oil circuit or has certain response pressure.
At described unsteady control cock and described back pressure valve or have between the check valve of certain response pressure and be connected with an energy storage or an oil sources pump.
Steel rope was crossed the device of putting when the control elevator of employing technique scheme floated, when unsteady control cock energising, the oil circuit two ends of control cock are connected, under the application force of drilling tool deadweight, the elevator cylinder drives revolution and transfers, after the pressure oil that MB goes out passes through to float control cock, part is stored in the energy storage, arrive the MA mouth by back pressure valve then, therefore in that the two ends of motor MB---MA has difference of pressure, the pressure extent is set by back pressure valve, and pressure reduction can be by preestablishing pressure, and reaching can either the tensioning steel rope, drilling tool relies on and falls into the state that touches subdrilling hole, hole from Beijing South Maxpower Technology Co. Ltd simultaneously, the effect of energy storage is the flow that replenishes the motor loss due to leakage, makes to keep certain hour to be in the steel rope tensioned state under quick condition, avoids steel rope sagging and occurred putting.Therefore the utility model is just avoided the wearing and tearing of restricting and contacting with drilling tool, and avoid twining on the reel chaotic and the damage steel rope, steel rope has certain predetermincd tension all the time simultaneously, can avoid the broken lot of steel rope, comprehensive above factor the utility model can prevent to damage the generation of steel rope fault, alleviates operator's labour intensity.
Description of drawings
Steel rope was crossed and is put the phenomenon scheme drawing when Fig. 1 was existing rotary drilling rig elevator quick condition;
Fig. 2 is a structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 2, on float control cock 2 and motor 1, carry and be in series with back pressure valve 7 in the side oil circuit, between unsteady control cock 2 and back pressure valve 7, be connected with an energy storage 6.
Referring to Fig. 2, when unsteady control cock 2 energisings, the oil circuit two ends of the control cock 2 of floating are connected, under the application force of drilling tool 5 deadweights, elevator 3 drives motor 1 rotation and transfers, after the pressure oil that MB goes out passes through to float control cock 2, part is stored in the energy storage 6, arrive the MA mouth by back pressure valve 7 then, therefore in that the two ends of motor 1 MB---MA has difference of pressure, the pressure extent is set by back pressure valve 7, and pressure reduction can be by preestablishing pressure, and reaching can either the tensioning steel rope, drilling tool 5 relies on and falls into the state that touches subdrilling hole, hole from Beijing South Maxpower Technology Co. Ltd simultaneously, the effect of energy storage 6 is the flows that replenish motor 1 loss due to leakage, makes to keep certain hour to be in steel rope 4 tensioned states under quick condition, avoids steel rope 4 sagging and occurred putting.Therefore the utility model is just avoided the wearing and tearing of restricting and contacting with drilling tool, and avoid twining on the reel of elevator 3 chaotic and damage steel rope 4, steel rope 4 has certain predetermincd tension all the time simultaneously, can avoid the broken lot of steel rope 4, comprehensive above factor the utility model can prevent to damage the generation of steel rope fault, alleviates operator's labour intensity.
The utility model by giving to carry the certain back pressure of side on the elevator, makes steel rope be in the pretension state all the time in the process that relies on the load deadweight to float and transfer.When elevator is motor-driven, when deadweight is transferred, give motor certain reverse voltage, make the elevator only can the tensioning steel rope, and can not overcome the strength that the drilling tool deadweight is fallen.When described elevator is the hydraulic circuit driving, when deadweight is transferred, increase back pressure valve and energy storage in unsteady control oil channel, make elevator tensioning steel rope when quick condition, can make drilling tool rely on deadweight to touch subdrilling hole, hole again.
On oil circuit, back pressure valve 7 can replace with the check valve that has certain response pressure, still belongs to this patent category.
This patent not only is useful on the rotary drilling rig, and is applicable to the occasion on all application elevators.
Claims (2)
1. a steel rope when controlling elevator and floating is crossed the device of putting, comprise motor (1) and unsteady control cock (2), it is characterized in that: putting forward side on the described motor and transferring the check valve that is in series with described unsteady control cock (2) and back pressure valve (7) between the side oil circuit or has certain response pressure.
2. steel rope was crossed the device of putting when control elevator according to claim 1 floated, and it is characterized in that: at described unsteady control cock (2) and described back pressure valve (7) or have between the check valve of certain response pressure and be connected with an energy storage (6) or an oil sources pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205806420U CN201864515U (en) | 2010-10-27 | 2010-10-27 | Device for controlling excessive release of steel wire rope when winch floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205806420U CN201864515U (en) | 2010-10-27 | 2010-10-27 | Device for controlling excessive release of steel wire rope when winch floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201864515U true CN201864515U (en) | 2011-06-15 |
Family
ID=44135677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205806420U Expired - Lifetime CN201864515U (en) | 2010-10-27 | 2010-10-27 | Device for controlling excessive release of steel wire rope when winch floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201864515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113200471A (en) * | 2021-05-13 | 2021-08-03 | 泰兴市福利建筑安装工程有限公司 | Auxiliary hoisting device for assembly type building |
-
2010
- 2010-10-27 CN CN2010205806420U patent/CN201864515U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113200471A (en) * | 2021-05-13 | 2021-08-03 | 泰兴市福利建筑安装工程有限公司 | Auxiliary hoisting device for assembly type building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |