CN203129993U - Modified drilling machine holder - Google Patents
Modified drilling machine holder Download PDFInfo
- Publication number
- CN203129993U CN203129993U CN 201220708826 CN201220708826U CN203129993U CN 203129993 U CN203129993 U CN 203129993U CN 201220708826 CN201220708826 CN 201220708826 CN 201220708826 U CN201220708826 U CN 201220708826U CN 203129993 U CN203129993 U CN 203129993U
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- oil
- valve
- holder
- pressure
- drilling rod
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Abstract
Disclosed is a modified drilling machine holder. A one-way sequence valve is connected in a forward oil way of a motor in series, the part, located in front of the one-way sequence valve, of a hydraulic controlling reversing valve is connected in the forward oil way of the motor in parallel, an outlet of the hydraulic controlling reversing valve is communicated with a clamping turning function valve, and an oil returning port of the hydraulic controlling reversing valve is communicated with an oil tank. When the modified drilling machine holder is in work, pressure oil from a pump enters a drilling rod rotary motor oil way, part of pressure oil is led to an oil inlet of the hydraulic controlling reversing valve; before the pressure oil reaches set pressure of the one-way sequence valve, the hydraulic controlling reversing valve is opened, the pressure oil enters the holder; pressure rises continuously after the holder is completely opened; after the pressure reaches the set pressure, the one-way sequence valve is opened, the pressure oil enters the drilling rod rotary motor, a drilling rod rotates, the hydraulic controlling reversing valve returns to a middle position under the action of a reset spring, and the holder is closed. Therefore, abrasion of a drilling rod is reduced, complexity of operation is lowered, and working efficiency of a drilling machine is improved. The modified drilling machine holder can be widely used as a holder for various types of drilling machines.
Description
technical field:
the utility model relates to a kind of clamper, particularly relates to a kind of drilling machine clamp holder.
background technology:
Rig, in revolution, drilling process, while carrying out rod boring, is made power at every turn after not producing rig, prevents that the rig anchoring is loosening, and operating personnel are accustomed to using folder to turn linkage function, when drilling rod rotates, the clamper that clamps drilling rod are unclamped.Now widely used rig is when using folder to turn linkage function, on the one hand owing to being subject to the unsettled constraint of drilling rod steering resistance size, the insufficient pressure of hydraulic gripper often occurs opening, cause clamper fully not open, produce clamper slips wearing and tearing drilling rod phenomenon, on the other hand, drilling rod is after the primary feed stroke completes, drilling rod stops operating, now need clamper to answer rapid closing, clamp drilling rod, but in old type drilling rig hydraulic system, because the pressure oil of opening clamper can't discharge rapidly, cause clamper can not clamp in time drilling rod, the operator is after each drilling rod stops operating like this, folder need be turned to linkage function is switched to folder and turns separation point position, after device to be held clamps drilling rod, again switch back folder and turn the interlock position, the problem existed is the working strength that has improved the operator, increased operation easier, also reduced operating efficiency.In order to address these problems, people have done multiple effort, as Chinese patent discloses the technology that a key name is called a kind of drilling machine clamp holder for No. 201020236609.6, introduced a kind of drilling machine clamp holder, fixed clamp body and upset cramping body are equipped with a positional cylinder and the clamping oil cylinder be oppositely arranged on same clamping axis, the positional cylinder be oppositely arranged is connected with an outlet of reversal valve with the rod chamber of clamping oil cylinder, positional cylinder is connected with another outlet of reversal valve with the rodless cavity of clamping oil cylinder, the import of reversal valve is connected with hydraulic pump, described reversal valve is connected in oil circuit and is in series with sequence valve in parallel and one way valve with the rodless cavity of described clamping oil cylinder.This device handling button efficiency is high, clamper accurate positioning and simple in structure, dependable performance.The deficiency existed is can not solve clamper can not fully open, and the problem of generation clamper slips wearing and tearing drilling rod and drilling rod are after the primary feed stroke completes, and drilling rod stops operating, and clamper can not rapid closing.Address these problems and become urgent need.
the content of utility model:
in order to overcome the deficiencies in the prior art, design a kind ofclamper can fully be opened with rapid closing
drilling machine clamp holder.A kind of follow-on drilling machine clamp holder beone way sequence valve of series connection in the forward oil circuit of motor,
?be positioned at the front pilot operated directional control valve in parallel of one way sequence valve in the forward oil circuit of motor, the outlet of pilot operated directional control valve is connected with folder rotating function valve, and the oil return opening of pilot operated directional control valve is connected with fuel tank.
the utility modelfirst will press from both sides the rotating function valve and be placed in folder and turn the interlock position before carrying out rod boring, until, after boring finishes, after this position of this valve is without change.Operation drilling rod rotation motor joystick, come the pressure oil of self-pumping to enter drilling rod rotary motor oil circuit, wherein separates the oil-in that a part of pressure oil leads to pilot operated directional control valve.Pressure oil is before the setting pressure that does not reach one way sequence valve, pressure oil is first opened pilot operated directional control valve, enter clamper, after device to be held is opened cmpletely, pressure continues to raise, and after the setting pressure that reaches one way sequence valve, one way sequence valve is opened, pressure oil enters the drilling rod rotary motor, drives drilling rod and rotates.After the drilling rod rotation motor stops operating, drilling rod rotation oil and oil return are linked up, pilot operated directional control valve is got back to meta under action of reset spring, the pressure oil of clamper flows back to fuel tank by pilot operated directional control valve, the clamper rapid closing, reduce the wear problem of drilling rod, reduced the complexity of operation, improved the operating efficiency of rig.
the accompanying drawing explanation:
fig. 1 is the utility model hydraulic circuit structure schematic diagram;
fig. 2 is original hydraulic circuit structure schematic diagram.
the specific embodiment:
below in conjunction with accompanying drawing, the utility model is described in further detail, a kind of follow-on drilling machine clamp holder beone way sequence valve 1 of series connection in the forward oil circuit of motor,
?be positioned at the front pilot operated directional control valve 2 in parallel of one way sequence valve in the forward oil circuit of motor, the outlet of pilot operated directional control valve is connected with folder rotating function valve 3, and the oil return opening of pilot operated directional control valve is connected with fuel tank.
Claims (1)
1.
a kind of follow-on drilling machine clamp holder is characterized in that:one way sequence valve of series connection in the forward oil circuit of motor,
?be positioned at the front pilot operated directional control valve in parallel of one way sequence valve in the forward oil circuit of motor, the outlet of pilot operated directional control valve is connected with folder rotating function valve, and the oil return opening of pilot operated directional control valve is connected with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708826 CN203129993U (en) | 2012-12-20 | 2012-12-20 | Modified drilling machine holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708826 CN203129993U (en) | 2012-12-20 | 2012-12-20 | Modified drilling machine holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203129993U true CN203129993U (en) | 2013-08-14 |
Family
ID=48937984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220708826 Expired - Fee Related CN203129993U (en) | 2012-12-20 | 2012-12-20 | Modified drilling machine holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203129993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906084A (en) * | 2017-10-27 | 2018-04-13 | 中国铁建重工集团有限公司 | Rock drill and its hydraulic pressure drilling control system |
-
2012
- 2012-12-20 CN CN 201220708826 patent/CN203129993U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906084A (en) * | 2017-10-27 | 2018-04-13 | 中国铁建重工集团有限公司 | Rock drill and its hydraulic pressure drilling control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |