CN206636851U - Rock drill air defense is hit, anti-sticking energy-saving type hydraulic system - Google Patents
Rock drill air defense is hit, anti-sticking energy-saving type hydraulic system Download PDFInfo
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- CN206636851U CN206636851U CN201720385903.5U CN201720385903U CN206636851U CN 206636851 U CN206636851 U CN 206636851U CN 201720385903 U CN201720385903 U CN 201720385903U CN 206636851 U CN206636851 U CN 206636851U
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- valve
- reversal valve
- pilot operated
- operated directional
- rock drill
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Abstract
Hit the utility model discloses rock drill air defense, anti-sticking energy-saving type hydraulic system, it includes hydraulic power unit, and the hydraulic power unit enters rail with forward direction by feed reverse valve and feed reversing oil pipe is connected；The hydraulic power unit is connected by impacting reversal valve with impact oil pipe and low pressure impact oil pipe；First pilot operated directional control valve is installed, the hydraulic control end of first pilot operated directional control valve is entered rail with forward direction by the first hydraulic control oil pipe and is connected, and first pilot operated directional control valve is connected with impact oil cylinder on the oil circuit after the impact oil pipe；The forward direction is entered rail and is connected by the first reversal valve and the second reversal valve with feed cylinder.Whether this hydraulic system controls the impact of rock drill with feed pressure size, so as to ensure that rock drill empty will not be beaten, extends the service life of equipment, reduces energy loss.
Description
Technical field
The utility model belongs to rock drilling equipment field, and in particular to rock drill air defense is hit, anti-sticking energy-saving type hydraulic system.
Background technology
At present, impact, feeding and the precession system of in the market major part rock drill are separate, are respectively adopted mutually
, the defects of following thus be present in independent hydraulic control system：
（1）Rock stratum or contact force are not exposed to not enough or when not having course feed in drill hammer, just promote impact control
Handle processed, the percussion action of rock drill may turn on, and so may result in that rock drill is empty to be beaten, i.e., impact now do it is useless
Work(, there is no any effect to rock drilling；If long-term sky, which is beaten, can cause very big injury to rock drill, shorten rock drill
Service life, increase construction cost；But also dynamic loss of energy can be caused.
（2）Rock drill run into the complicated situation of operating mode and be stuck stop the rotation when, and now feed function and rotation
Function also in ceaselessly positive feeding and rotates forward, and so as to cause bit of rock drilling machine the more can block the more tight, or even eventually results in
Drill bit and shank of rock drill fracture destroy rock drilling machine equipment, add construction cost inside hole, and fail to meet the time limit of a project progress,
Reduce operating efficiency.
Utility model content
The purpose of this utility model be to provide rock drill air defense hit, anti-sticking energy-saving type hydraulic system, this hydraulic system is to enter
Whether the impact of rock drill is controlled to pressure size, so as to ensure that rock drill empty will not be beaten, extends the service life of equipment,
Reduce energy loss；And the direction of feed of rock drill is controlled in hydraulic system with rotational pressure size, and then avoid
The situation that rock drill is stuck, plays a very good protection to equipment.
In order to realize above-mentioned technical characteristic, what the purpose of this utility model was realized in：Rock drill air defense is hit, anti-sticking
Energy-saving hydraulic system, it includes hydraulic power unit, and the hydraulic power unit enters rail and reverse by feed reverse valve and forward direction
Enter rail to be connected；The hydraulic power unit is connected by impacting reversal valve with impact oil pipe and low pressure impact oil pipe；The hydraulic pressure
Pumping plant is connected by rotary reversing valve with rotation oil inlet pipe and rotation oil return pipe；
First pilot operated directional control valve, the hydraulic control of first pilot operated directional control valve are installed on the oil circuit after the impact oil pipe
End is entered rail with forward direction by the first hydraulic control oil pipe and is connected, and first pilot operated directional control valve is connected with impact oil cylinder；
The forward direction is entered rail and is connected by the first reversal valve and the second reversal valve with feed cylinder；The rotation oil-feed
Pipe is connected with the first reversal valve and the second reversal valve hydraulic control end simultaneously by the second hydraulic control oil pipe, the rotation oil inlet pipe and rotation
Oil return pipe is connected with rotary fluid motor.
It is connected on the first hydraulic control oil pipe by the 3rd hydraulic control oil pipe with the second pilot operated directional control valve, second hydraulic control is changed
It is connected to valve by the first overflow valve with fuel tank.
The forward direction enters on rail to be also associated with the second overflow valve and the 3rd reversal valve, connects after the 3rd reversal valve
The 3rd overflow valve is connected to, the oil-out of second overflow valve, the 3rd reversal valve and the 3rd overflow valve is connected with fuel tank.
First pilot operated directional control valve uses two-position three way pilot operated directional control valve, the unlatching of the two-position three way pilot operated directional control valve
Pressure can be adjusted.
Second pilot operated directional control valve uses two-position two-way hydraulic control reversal valve, the unlatching of the two-position two-way hydraulic control reversal valve
Pressure is equal with the Opening pressure of the first pilot operated directional control valve.
Two-position four-way pilot operated directional control valve is respectively adopted for first reversal valve and the second reversal valve and two-position two-way hydraulic control changes
To valve.
The Opening pressure of first reversal valve and the second reversal valve is equal.
Check valve is parallel with second reversal valve.
Another hydraulic control end of first reversal valve and the second reversal valve is connected to the 4th overflow valve and the 5th stream valve.
The utility model has the advantages that：
1st, by using above-mentioned hydraulic system, the impact of rock drill is controlled to move with feed pressure size in systems
Make, and then ensure that rock drill will not occur sky and hit, and then extend its service life.
2nd, it is connected by the way that forward direction is entered between rail and the first pilot operated directional control valve with the first hydraulic control oil pipe, in rock drill
Also be not exposed to rock stratum or due to rock stratum hole, it is soft make it is positive enter rail pressure very little in the case of, it is now positive
The pressure for entering rail is less than the commutation Opening pressure of the first pilot operated directional control valve, and now the first pilot operated directional control valve will not change
To, and the hydraulic oil for impacting oil pipe directly will be back to fuel tank by the first pilot operated directional control valve, now there will be no punching for rock drill
The effect of hitting, sky would not occur and beat, and then extend the service life of rock drill, improve operating efficiency, saved cost, together
When also reduce energy consumption.
3rd, when rock drill touches harder rock stratum, it is now positive enter rail pressure can follow load increase and
Increase, when it is positive enter rail pressure increase to the commutation Opening pressure of the first pilot operated directional control valve, the first pilot operated directional control valve is just
It can open and commutate, impact the hydraulic oil of oil pipe after commutation directly will enter impact oil by the first pilot operated directional control valve
Cylinder, and then open rock drill drill hammer and carry out impact drilling action；At the same time due to the second pilot operated directional control valve and the 3rd liquid
Oil-control pipe is connected with the first hydraulic control oil pipe, and while the first pilot operated directional control valve is opened and commutated, the second pilot operated directional control valve also can be with
Unlatching commutation, may be prevented from impact oil pipe oil circuit hydraulic oil oil return box, this ensures that rock drill effectively impacts, no
It can cause rock drill is empty to beat, avoid rock drill from being damaged, improve operating efficiency, it is cost-effective.
4th, the principle with loading is depended on according to pressure in hydraulic system, can be by feed cylinder by above-mentioned hydraulic system
Load pressure feedback to impact oil cylinder impact system, by feedback regulation and then control the first pilot operated directional control valve unlatching,
The final unlatching for realizing impact oil cylinder, effectively avoids the sky when not feeding and hits action, improve the use of rock drill
In the life-span, reduce energy consumption.
5th, the direction of feed of rock drill is controlled in this hydraulic system with rotational pressure size, so as to ensure that rock drill will not
It is stuck, influences normal operation.
6th, oil inlet pipe hydraulic control with the first reversal valve and the second reversal valve simultaneously by hydraulic control oil pipe will be rotated in the system
End is connected, and in the course of work, when bit of rock drilling machine or drill steel are stuck and when can not rotate, rotates pressure on oil inlet pipe just
It can increase, when pressure is more than the spring pressure value that the first reversal valve and the second reversal valve are set, the first reversal valve and second changes
It will be commutated to valve, now the first reversal valve and the second reversal valve will be reversed all in left position, now feed cylinder
Feeding, and then rock drill is reversely exited, such rock drill will be slowly rejected, and the pressure rotated on oil inlet pipe also can be therewith
Gradually reduce, when pressure is less than the spring setting value of the first reversal valve and the second reversal valve, the first reversal valve and second changes
Original position will be recovered and normal work to valve, rock drill normally rotation and positive feeding.This ensures that on rock drill
Drill bit and drill steel and other accessories will not be stuck in the inside, so as to improve operating efficiency and cost-effective.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram at the first visual angle of the present utility model.
In figure：Hydraulic power unit 1, feed reverse valve 2, impact reversal valve 3, feed reversing oil pipe 4, forward direction enter rail 5, low
Pressure impact oil pipe 6, impact oil pipe 7, the first hydraulic control oil pipe 8, the second pilot operated directional control valve 9, the first overflow valve 10, the 3rd hydraulic control oil pipe
11st, the first pilot operated directional control valve 12, impact oil cylinder 13, precession oil pipe 14, the first reversal valve 15, the second reversal valve 16, feed cylinder
17th, the second overflow valve 18, the 3rd reversal valve 19, the 3rd overflow valve 20, the 4th overflow valve the 22, the 5th stream valve 23, rotary reversing valve
24th, oil inlet pipe 25, rotation oil return pipe 26, the second hydraulic control oil pipe 27, rotary fluid motor 28 are rotated.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Such as Fig. 1, rock drill air defense is hit, anti-sticking energy-saving type hydraulic system, and it includes hydraulic power unit 1, and the hydraulic power unit 1 is logical
Cross that feed reverse valve 2 enters rail 5 with forward direction and feed reversing oil pipe 4 is connected；The hydraulic power unit 1 is by impacting reversal valve 3
It is connected with impact oil pipe 7 and low pressure impact oil pipe 6；The hydraulic power unit 1 by rotary reversing valve 24 with rotation oil inlet pipe 25 and
Oil return pipe 26 is rotated to be connected；
Further, first pilot operated directional control valve 12, first hydraulic control are installed on the oil circuit after the impact oil pipe 7
The hydraulic control end of reversal valve 12 is entered rail 5 with forward direction by the first hydraulic control oil pipe 8 and is connected, first pilot operated directional control valve 12 and punching
Oil cylinder 13 is hit to be connected；
Further, the forward direction enters rail 5 and passes through the first reversal valve 15 and the second reversal valve 16 and feed cylinder 17
It is connected；The rotation oil inlet pipe 25 by the second hydraulic control oil pipe 27 simultaneously with the first reversal valve 15 and the hydraulic control end of the second reversal valve 16
It is connected, the rotation oil inlet pipe 25 and rotation oil return pipe 26 are connected with rotary fluid motor 28.In the course of work, feed cylinder 17
Feed pressure will feed back to impact oil pipe 7 simultaneously, by will be between the impact pilot operated directional control valve 12 of oil pipe 7 and first with the first liquid
Oil-control pipe 8 is connected, and the system pressure feedback of feedback can be given to the first pilot operated directional control valve 12, only when system load pressure reaches
During to certain value, the first pilot operated directional control valve 12 can be just controlled to open commutation, the sky for effectively avoiding impact drill is hit, and improves work
Make efficiency, reduce energy consumption.
Further, it is connected on the first hydraulic control oil pipe 8 by the 3rd hydraulic control oil pipe 11 with the second pilot operated directional control valve 9,
Second pilot operated directional control valve 9 is connected by the first overflow valve 10 with fuel tank.By by the second pilot operated directional control valve 9 simultaneously with first
Hydraulic control oil pipe 8 is connected, and can ensure to also ensure that the second pilot operated directional control valve 9 while the first pilot operated directional control valve 12 is opened and commutated
Unlatching and commutation, by the cooperation between the first pilot operated directional control valve 12 and the second pilot operated directional control valve 9, ensure that in load pressure
When reaching setting value rock drill can normal work, and then carry out rock drilling operation.
Further, the forward direction enters on rail 5 to be also associated with the second overflow valve 18 and the 3rd reversal valve 19, and described
The 3rd overflow valve 20, second overflow valve 18, the 3rd reversal valve 19 and the 3rd overflow valve 20 are connected with after three reversal valves 19
Oil-out be connected with fuel tank.When ensure that using said structure without feed motion, it is positive enter rail 5 on fluid energy
Fuel tank is enough back to by the 3rd reversal valve 19 and the 3rd overflow valve 20.
Further, first pilot operated directional control valve 12 uses two-position three way pilot operated directional control valve, the two-position three way hydraulic control
The Opening pressure of reversal valve can be adjusted.By adjusting its Opening pressure, the work that regulation rock drill drill hammer is opened is reached
With.
Further, second pilot operated directional control valve 9 uses two-position two-way hydraulic control reversal valve, and the two-position two-way hydraulic control changes
It is equal with the Opening pressure of the first pilot operated directional control valve 12 to the Opening pressure of valve.By adjusting its Opening pressure, reach second
The function of the synchronization action of 9 and first pilot operated directional control valve of pilot operated directional control valve 12.
Further, two-position four-way pilot operated directional control valve and two are respectively adopted in the reversal valve 16 of the first reversal valve 15 and second
Position two-way pilot operated directional control valve.It is connected by using two liquid controlled reversings with rotation oil inlet pipe 25, the side of feedback regulation can be passed through
Formula receives the precession load of rotary fluid motor 28, when jam occurs due to load pressure increase, and then can cause to be rotated into
The pressure increase of oil pipe 25, will now control the first reversal valve and the second reversal valve to commutate, now the first commutation
Valve and the second reversal valve are all in left position, and now feed cylinder will be reversed feeding, and then rock drill is reversely exited, so
Rock drill will be slowly rejected, and rotate the pressure on oil inlet pipe also can gradually reduce therewith, when pressure is less than the first commutation
During the spring setting value of valve and the second reversal valve, the first reversal valve and the second reversal valve will recover original position and normal work,
Rock drill normally rotation and positive feeding.This ensures that the drill bit and drill steel and other accessories on rock drill will not be stuck in
The inside, so as to improve operating efficiency and cost-effective.
Further, the Opening pressure of the reversal valve 16 of the first reversal valve 15 and second is equal.Opened using identical
Pressure ensure that the synchronization of two reversal valve work.
Further, it is parallel with check valve 21 on second reversal valve 16.
Further, another hydraulic control end of the reversal valve 16 of the first reversal valve 15 and second is connected to the 4th overflow
Valve 22 and the 5th flows valve 23.
The course of work and operation principle of the present utility model are：
When so oil cylinder 17 is not fed or bit contact is to rock stratum cavity or during weak stratum, pressed according in hydraulic system
Power depend on load principle, now the pressure in hydraulic system is smaller, i.e., forward direction enter rail 5 pressure value it is smaller, pass through
This pressure value is fed back to the first pilot operated directional control valve 12 by the first hydraulic control oil pipe 8, due to and not up to the first pilot operated directional control valve 12
Opening pressure, fuel tank will be returned directly to by the first pilot operated directional control valve 12 by now impacting the hydraulic oil of oil pipe 7, and without punching
Action is hit, sky is effectively avoided and hits；
When rock drill touches harder rock stratum, it is now positive enter rail 5 pressure can follow load increase and
Increase, when it is positive enter rail 5 pressure increase to the commutation Opening pressure of the first pilot operated directional control valve 12, the first pilot operated directional control valve
12 may turn on and commutate, and impact the hydraulic oil of oil pipe 7 after commutation and directly will be entered by the first pilot operated directional control valve 12
Oil cylinder 13 is impacted, and then opens rock drill drill hammer and carries out impact drilling action；At the same time due to the second pilot operated directional control valve 9
It is connected with the 3rd hydraulic control oil pipe 11 with the first hydraulic control oil pipe 8, while the first pilot operated directional control valve 12 is opened and commutated, the second hydraulic control
Reversal valve 9 can also open commutation therewith, may be prevented from impacting the hydraulic oil oil return box of the oil circuit of oil pipe 7, this ensures that rock drilling
Machine effectively impacts, and will not cause rock drill is empty to beat, avoid rock drill from being damaged, and improves operating efficiency, cost-effective.
In the course of work, when bit of rock drilling machine or drill steel are stuck and when can not rotate, the pressure on oil inlet pipe 25 is rotated
Power will increase, when pressure is more than the spring pressure value that the first reversal valve 15 and the second reversal valve 16 are set, the first reversal valve
15 and second reversal valve 16 will commutate, now the first reversal valve 15 and the second reversal valve 16 now enter all in left position
Feeding will be reversed to oil cylinder 17, and then rock drill is reversely exited, such rock drill will be slowly rejected, and rotate oil-feed
Pressure on pipe 25 also can gradually reduce therewith, when pressure is less than the spring setting of the first reversal valve 15 and the second reversal valve 16
During value, the first reversal valve 15 and the second reversal valve 16 will recover original position and normal work, and rock drill normally rotates and positive
Feeding.This ensures that the drill bit and drill steel and other accessories on rock drill will not be stuck in the inside, so as to improve work
Efficiency is simultaneously cost-effective.
Above-described embodiment is used for illustrating the utility model, rather than the utility model is limited, in this practicality
New spirit and any modifications and changes in scope of the claims, made to the utility model, both fall within this reality
With new protection domain.
Claims (9)
1. rock drill air defense is hit, anti-sticking energy-saving type hydraulic system, it includes hydraulic power unit（1）, the hydraulic power unit（1）By entering
To reversal valve（2）Enter rail with forward direction（5）With feed reversing oil pipe（4）It is connected；The hydraulic power unit（1）Commutated by impacting
Valve（3）With impacting oil pipe（7）Oil pipe is impacted with low pressure（6）It is connected；The hydraulic power unit（1）Pass through rotary reversing valve（24）With rotation
Rotate into oil pipe（25）With rotation oil return pipe（26）It is connected；It is characterized in that：
The impact oil pipe（7）First pilot operated directional control valve is installed on oil circuit afterwards（12）, first pilot operated directional control valve
（12）Hydraulic control end pass through the first hydraulic control oil pipe（8）Enter rail with forward direction（5）It is connected, first pilot operated directional control valve（12）With
Impact oil cylinder（13）It is connected.
2. rock drill air defense according to claim 1 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：The forward direction
Enter rail（5）Pass through the first reversal valve（15）With the second reversal valve（16）With feed cylinder（17）It is connected；The rotation oil-feed
Pipe（25）Pass through the second hydraulic control oil pipe（27）Simultaneously with the first reversal valve（15）With the second reversal valve（16）Hydraulic control end is connected, described
Rotate oil inlet pipe（25）With rotation oil return pipe（26）With rotary fluid motor（28）It is connected.
3. rock drill air defense according to claim 1 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：Described first
Hydraulic control oil pipe（8）It is upper to pass through the 3rd hydraulic control oil pipe（11）With the second pilot operated directional control valve（9）It is connected, second pilot operated directional control valve
（9）Pass through the first overflow valve（10）It is connected with fuel tank.
4. rock drill air defense according to claim 1 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：The forward direction
Enter rail（5）On be also associated with the second overflow valve（18）With the 3rd reversal valve（19）, the 3rd reversal valve（19）Connect afterwards
It is connected to the 3rd overflow valve（20）, second overflow valve（18）, the 3rd reversal valve（19）With the 3rd overflow valve（20）Oil-out
It is connected with fuel tank.
5. rock drill air defense according to claim 1 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：Described first
Pilot operated directional control valve（12）Using two-position three way pilot operated directional control valve, the Opening pressure of the two-position three way pilot operated directional control valve can be adjusted
Section.
6. rock drill air defense according to claim 3 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：Described second
Pilot operated directional control valve（9）Using two-position two-way hydraulic control reversal valve, Opening pressure and the first liquid of the two-position two-way hydraulic control reversal valve
Control reversal valve（12）Opening pressure it is equal.
7. rock drill air defense according to claim 1 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：Described first
Reversal valve（15）With the second reversal valve（16）Two-position four-way pilot operated directional control valve and two-position two-way hydraulic control reversal valve is respectively adopted.
8. the rock drill air defense according to claim 2 or 6 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：Described
One reversal valve（15）With the second reversal valve（16）Opening pressure it is equal.
9. rock drill air defense according to claim 2 is hit, anti-sticking energy-saving type hydraulic system, it is characterised in that：Described second
Reversal valve（16）On be parallel with check valve（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385903.5U CN206636851U (en) | 2017-04-13 | 2017-04-13 | Rock drill air defense is hit, anti-sticking energy-saving type hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385903.5U CN206636851U (en) | 2017-04-13 | 2017-04-13 | Rock drill air defense is hit, anti-sticking energy-saving type hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206636851U true CN206636851U (en) | 2017-11-14 |
Family
ID=60248418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720385903.5U Expired - Fee Related CN206636851U (en) | 2017-04-13 | 2017-04-13 | Rock drill air defense is hit, anti-sticking energy-saving type hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206636851U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061395A (en) * | 2017-04-13 | 2017-08-18 | 宜昌精博艺工程机械设备制造有限公司 | Rock drill air defense is hit, anti-sticking energy-saving type Hydraulic system and control method |
| CN108194444A (en) * | 2018-03-20 | 2018-06-22 | 马鞍山唐拓凿岩机械有限公司 | The blank-run prevention hydraulic system and its control method of a kind of top hammer drilling machine |
| CN112727818A (en) * | 2020-12-25 | 2021-04-30 | 中铁工程装备集团隧道设备制造有限公司 | Hydraulic control system of rock drill |
-
2017
- 2017-04-13 CN CN201720385903.5U patent/CN206636851U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061395A (en) * | 2017-04-13 | 2017-08-18 | 宜昌精博艺工程机械设备制造有限公司 | Rock drill air defense is hit, anti-sticking energy-saving type Hydraulic system and control method |
| CN107061395B (en) * | 2017-04-13 | 2018-07-24 | 宜昌精博艺工程机械设备制造有限公司 | Rock drill air defense hits, anti-sticking energy-saving type Hydraulic system and control method |
| CN108194444A (en) * | 2018-03-20 | 2018-06-22 | 马鞍山唐拓凿岩机械有限公司 | The blank-run prevention hydraulic system and its control method of a kind of top hammer drilling machine |
| CN108194444B (en) * | 2018-03-20 | 2024-02-13 | 马鞍山唐拓凿岩机械有限公司 | Anti-idle-drilling hydraulic system of top hammer drilling machine and control method thereof |
| CN112727818A (en) * | 2020-12-25 | 2021-04-30 | 中铁工程装备集团隧道设备制造有限公司 | Hydraulic control system of rock drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20180413 |