CN2918825Y - Hydraulic anchor bar drilling machine composite hydraulic control valve - Google Patents
Hydraulic anchor bar drilling machine composite hydraulic control valve Download PDFInfo
- Publication number
- CN2918825Y CN2918825Y CN 200620086198 CN200620086198U CN2918825Y CN 2918825 Y CN2918825 Y CN 2918825Y CN 200620086198 CN200620086198 CN 200620086198 CN 200620086198 U CN200620086198 U CN 200620086198U CN 2918825 Y CN2918825 Y CN 2918825Y
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Abstract
The utility model relates to a combined hydraulic control valve for hydraulic bolt drillers in coal mines, belonging to the technical field of coal-mining mechanical equipment. The utility model provides a hydraulic control valve for hydraulic bolt drillers which can coordinate rotary-cutting and move-in automatically. Rotary-cutting is connected in parallel with a controlling and reversing valve of a move-in cylinder to prevent the bend of the drilling rod caused by the excessive force of the move-in cylinder, a pressure reducer valve is connected in series in front of the controlling and reversing valve of the move-in cylinder, which can control the maximum propulsion of the hydraulic system. Compared with the serial system at the same pressure, the pressure difference between the entrance and exit of the hydraulic motor is increased which makes the drillers have larger rotary-moment output under the same working pressure. Since the rotary-cutting and move-in can coordinate automatically and the speed hardness of the drilling speed of the driller is relatively great, the rates of rotary-cutting and move-in are stable and relatively less influenced by the load change. Therefore the efficiency of the hydraulic bolt driller is greatly improved and the utility model is fit for various hydraulic bolt drills.
Description
Technical field
The utility model relates to a kind of colliery hydraulic jumbolter combined type hydraulic control valve, belongs to the coal mine machinery equipment technical field.
Background technique
Hydraulic jumbolter is compared with pneumatic roof bolter, because the moment of torsion of rotation cutting is big and big to the propelling force of rig, has been subjected to the favor of colliery system gradually.At present international and domesticly various types of hydraulic jumbolters have all been developed.
Hydraulic jumbolter is made up of oil hydraulic motor, PF cylinder pressure and control arm three parts.Oil hydraulic motor is used crescent gear motor usually, and the PF cylinder pressure often adopts the telescopic sleeve pipe type sucking double-acting hydraulic cylinder, and control arm often is made up of Effector and combined type hydraulic control valve.The wherein action that advances of the rotation cutting of combined type hydraulic control valve control oil hydraulic motor and rig and the mutual coordination of these two actions, so the performance of combined type hydraulic control valve is to be related to hydraulic jumbolter rotation cutting and can advance high efficiency and creep into the key of work fast.
At present, the rotation of the existing hydraulic jumbolter of China cutting oil hydraulic motor and PF cylinder pressure are connected in series by combined type hydraulic control valve usually, and in order to control the fltting speed of oil hydraulic cylinder, propeller adopts the by-pass throttle flow control circuit.Because the speed stiffness of by-pass throttle flow control circuit is lower, will inevitably cause fltting speed to be subjected to the influence of load very big, so the by-pass throttle flow control circuit is adapted to the operating mode that load is constant or variation is very little, hydraulic jumbolter is when underground work, load variations is very big, and Changing Pattern is at random.Adopt the hydraulic jumbolter of this hydraulic system, higher in zero load or light hours rate of penetration, and speed decline is exceedingly fast when load is risen, and rate of penetration is extremely slow when big load, and the reflection at underground work scene also is like this.Address the above problem, can effectively improve the working efficiency of hydraulic jumbolter.
Summary of the invention
In order to overcome existing hydraulic jumbolter rotation cutting and the deficiency that advances the coadaptation difference, the utility model provide a kind of rotate cutting with advance can automatic synchronization the hydraulic jumbolter combined type hydraulic control valve.
The technological scheme that its technical problem that solves the utility model adopts is: adopt rotation cutting and driving cylinder control selector valve to be connected in parallel, for the excessive drill pipe buckling that causes of the propelling force that prevents driving cylinder, the reduction valve of before the driving cylinder selector valve, connecting, the maximum propelling force of controlled hydraulic system, under same pressure, compare like this with train, oil hydraulic motor inlet/outlet pressure reduction is bigger, makes rig under same working pressure, and the ability of output running torque is bigger.Simultaneously since the rotation cutting with advance can automatic synchronization, the speed stiffness that rig creeps into is bigger, rate of penetration is very fast.
Structure of the present utility model is: a kind of hydraulic jumbolter combined type hydraulic control valve, form by rotation cutting oil hydraulic motor control selector valve and PF cylinder pressure control selector valve, it is characterized in that PF cylinder pressure control selector valve and a reduction valve formation are connected in series, the filler opening of PF cylinder pressure control selector valve connects the oil outlet of reduction valve, and the filler opening of reduction valve all directly communicates with total filler opening with the filler opening of rotation cutting oil hydraulic motor control selector valve; The return opening of rotation cutting oil hydraulic motor links to each other with the return opening of PF cylinder pressure control selector valve and the drain tap of reduction valve with the return opening of rotation cutting oil hydraulic motor control selector valve respectively, is to be connected in parallel and to communicate with total return opening.
Jumbolter rotation cutting with the principle that propulsion hydraulic system is connected in parallel is: adopt to be connected in parallel, like this, under same pressure, compare with train, the pressure reduction of oil hydraulic motor inlet/outlet is bigger, the ability that has the bigger running torque of output when making rig work, the reduction valve of before the driving cylinder selector valve, connecting, the maximum thrust that the pressure that reduction valve is set can be controlled driving cylinder is no more than system's pressure maximum, and oil hydraulic motor and landing leg hydraulic cylinder both can move simultaneously also can single movement.
Reduction valve described in the utility model, selector valve are identical with traditional reduction valve, selector valve structural principle.Reduction valve adopts direct dynamic structure; The three position four-way directional control valve that selector valve adopts valve body, spool and spring to constitute.
The utility model when work, handle the control selector valve of jumbolter rotation cutting and propulsion hydraulic system, jumbolter rotation cutting is finished synchronousing working of rotation cutting and propelling with just advance can co-ordination.
The beneficial effects of the utility model are that rotation cutting rotating speed and fltting speed are stable, are subjected to the influence of load variations less when adopting the hydraulic jumbolter work of this combination brake switch and proporting; Can increase substantially the working efficiency of hydraulic jumbolter, be fit to various hydraulic jumbolters and use.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a hydraulic element schematic diagram of the present utility model.Fig. 2 is an embodiment's of the present utility model plan view.Fig. 3 is an embodiment's of the present utility model right elevation.Fig. 4 is an embodiment of the present utility model longitudinal section A-A tectonic maps.Fig. 5 is an embodiment of the present utility model longitudinal section B-B tectonic maps.Among the figure: 1-valve body, 2-nut, 3-sealing gasket, the 4-relief pressure valve cartridge, 5-motor return opening, 6-pressure-relief valve spring, the total return opening of 7-, 8-combination seal pad, 9-O shape seal ring, 10-pressure-relief valve spring seat, 11-pressure regulating screw, 12-hexagon nut, the 13-bonnet that reduces pressure, the total filler opening of 14-, 15-motor filler opening, 16-PF cylinder pressure hydraulic fluid port, 17-PF cylinder pressure hydraulic fluid port, 18-thimble, 1 9-thimble nut, 20-thimble nut briquetting, 21-combination seal pad, 22-Y shape seal ring, 23-changeover valve core, 24-selector valve spring, 25-combination seal pad, 26-selector valve nut, 27-PF cylinder pressure selector valve, 28-motor selector valve.
Embodiment
A kind of hydraulic jumbolter combined type hydraulic control valve, form by valve body 1, rotation cutting oil hydraulic motor selector valve 28 and PF cylinder pressure selector valve 27, it is characterized in that PF cylinder pressure selector valve 27 and a reduction valve formation are connected in series, the filler opening of PF cylinder pressure selector valve 27 connects the oil outlet of reduction valve, and the filler opening of reduction valve communicates with the filler opening parallel connection of rotation cutting oil hydraulic motor control selector valve and with total filler opening 14; The return opening of rotation cutting oil hydraulic motor links to each other with the return opening of PF cylinder pressure selector valve and the drain tap of reduction valve with the return opening of rotation cutting oil hydraulic motor selector valve respectively, and being is connected in parallel connects total return opening 7.
The state of specifically controlling is referring to accompanying drawing 1: when rotation cutting oil hydraulic motor selector valve is in state shown in Figure 1, filler opening communicates with return opening, and rotation cutting oil hydraulic motor decompression is in the standby unloading condition, PF cylinder pressure selector valve also is in the decompression unloading condition, and hydraulic jumbolter is shut down; When rotation cutting oil hydraulic motor selector valve is in commutation states, filler opening is communicated with oil hydraulic motor, the oil return of oil hydraulic motor is through the logical fuel tank of return opening, rotation cutting oil hydraulic motor is in the start rotary state, PF cylinder pressure selector valve is in pressure condition is arranged, it is flexible that PF cylinder pressure selector valve can be controlled the PF cylinder pressure, the hydraulic jumbolter proper functioning.
The actual hydraulic jumbolter combined type hydraulic control valve that uses is seen accompanying drawing 2-accompanying drawing 5, by valve body 1, total filler opening 14, total return opening 7, motor filler opening 15, motor return opening 5, PF cylinder pressure hydraulic fluid port 16, PF cylinder pressure hydraulic fluid port 17, PF cylinder pressure selector valve 27, motor selector valve 28 and reduction valve constitute.
Reduction valve comprises nut 2, sealing gasket 3, relief pressure valve cartridge 4, pressure-relief valve spring 6, combination seal pad 8, O-ring seals 9, pressure-relief valve spring seat 10, pressure regulating screw 11, hexagon nut 12, decompression bonnet 13 formation that is linked and packed successively.
PF cylinder pressure selector valve 27 is by thimble 18, thimble nut 19, thimble nut briquetting 20, combination seal pad 21, y-shaped ring 22, changeover valve core 23, selector valve spring 24, combination seal pad 25, selector valve nut 26 formation that is linked and packed successively.
The structure of motor selector valve 28 is identical with PF cylinder pressure selector valve 27, repeats no more.
Referring to accompanying drawing 2,4, its filler opening communicates with total filler opening 14 reduction valve in the combined type hydraulic control valve in the position of valve body and structure, and drain tap communicates with total return opening 7, and PF cylinder pressure hydraulic fluid port 16, PF cylinder pressure hydraulic fluid port 17 are in side of valve body.
PF cylinder pressure selector valve 27 in the combined type hydraulic control valve, motor selector valve 28 in the position of valve body and structure referring to accompanying drawing 3.
Claims (3)
1, a kind of hydraulic jumbolter combined type hydraulic control valve, form by valve body (1), rotation cutting oil hydraulic motor selector valve (28) and PF cylinder pressure selector valve (27), it is characterized in that a PF cylinder pressure selector valve (27) and a reduction valve formation are connected in series, the filler opening of PF cylinder pressure selector valve (27) connects the oil outlet of reduction valve, and the filler opening of reduction valve communicates with the filler opening parallel connection of rotation cutting oil hydraulic motor control selector valve and with total filler opening (14); The return opening of rotation cutting oil hydraulic motor links to each other with the return opening of PF cylinder pressure selector valve and the drain tap of reduction valve with the return opening of rotation cutting oil hydraulic motor selector valve respectively, and being is connected in parallel connects total return opening (7).
2, hydraulic jumbolter combined type hydraulic control valve according to claim 1, it is characterized in that reduction valve comprises nut (2), sealing gasket (3), relief pressure valve cartridge (4), pressure-relief valve spring (6), combination seal pad (8), O-ring seals (9), pressure-relief valve spring seat (10), pressure regulating screw (11), hexagon nut (12), decompression bonnet (13) formation that is linked and packed successively.
3, hydraulic jumbolter combined type hydraulic control valve according to claim 1, it is characterized in that PF cylinder pressure selector valve (27) is by thimble (18), thimble nut (19), thimble nut briquetting (20), combination seal pad (21), y-shaped ring (22), changeover valve core (23), selector valve spring (24), combination seal pad (25), selector valve nut (26) formation that is linked and packed successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086198 CN2918825Y (en) | 2006-06-28 | 2006-06-28 | Hydraulic anchor bar drilling machine composite hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086198 CN2918825Y (en) | 2006-06-28 | 2006-06-28 | Hydraulic anchor bar drilling machine composite hydraulic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918825Y true CN2918825Y (en) | 2007-07-04 |
Family
ID=38216643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086198 Expired - Fee Related CN2918825Y (en) | 2006-06-28 | 2006-06-28 | Hydraulic anchor bar drilling machine composite hydraulic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918825Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115188A (en) * | 2013-02-05 | 2013-05-22 | 石家庄中煤装备制造股份有限公司 | Hydraulic control system and bolting machine |
| CN106246159A (en) * | 2016-08-22 | 2016-12-21 | 山西晋城无烟煤矿业集团有限责任公司 | Pneumatic roof bolter control system |
| CN115870839A (en) * | 2023-03-08 | 2023-03-31 | 南京仁厚科技有限公司 | Fiberboard edging processing device |
| CN117646750A (en) * | 2023-10-20 | 2024-03-05 | 河北尚泰合力液压元件有限公司 | Roofbolter and hydraulic propulsion system thereof |
-
2006
- 2006-06-28 CN CN 200620086198 patent/CN2918825Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115188A (en) * | 2013-02-05 | 2013-05-22 | 石家庄中煤装备制造股份有限公司 | Hydraulic control system and bolting machine |
| CN103115188B (en) * | 2013-02-05 | 2015-06-17 | 石家庄中煤装备制造股份有限公司 | Hydraulic control system and bolting machine |
| CN106246159A (en) * | 2016-08-22 | 2016-12-21 | 山西晋城无烟煤矿业集团有限责任公司 | Pneumatic roof bolter control system |
| CN115870839A (en) * | 2023-03-08 | 2023-03-31 | 南京仁厚科技有限公司 | Fiberboard edging processing device |
| CN117646750A (en) * | 2023-10-20 | 2024-03-05 | 河北尚泰合力液压元件有限公司 | Roofbolter and hydraulic propulsion system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |