CN204225757U - A kind of all-hydraulic cutter breaks device - Google Patents
A kind of all-hydraulic cutter breaks device Download PDFInfo
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- CN204225757U CN204225757U CN201420679554.4U CN201420679554U CN204225757U CN 204225757 U CN204225757 U CN 204225757U CN 201420679554 U CN201420679554 U CN 201420679554U CN 204225757 U CN204225757 U CN 204225757U
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- impact piston
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Abstract
A kind of all-hydraulic cutter breaks device, comprise bit shank device, accumulator potted component, and hydraulic actuator, establish the A cylinder body of high-pressure oil duct in this hydraulic actuator comprises and be placed in the impact piston of A cylinder body, impact piston is provided with drain pan, and A cylinder body two ends are respectively equipped with the fairlead being socketed in impact piston outer wall; A cylinder interior is also provided with a-signal hydraulic fluid port, B signal hydraulic fluid port; A cylinder head is connected with bit shank device, and A cylinder body top is provided with reversal valve, is provided with the oil duct leading to A cylinder body oil cylinder in reversal valve, and reversal valve front end is connected with accumulator and the two oil duct communicates; A cylinder body is provided with oil-in, and reversal valve is provided with oil return opening, and oil-in and oil return opening are respectively by oil inlet pipe and oil return pipe connecting excavator hydraulic system.This cutter breaks device by shortening the size of impact piston stroke and reversal valve, makes impact piston within the unit interval, impact the increased frequency of bit shank, has beating frequency high, the advantage that the excavator tonnage of outfit is little.
Description
Technical field
The utility model belongs to engineering rock drilling equipment technical field, is specifically related to a kind of all-hydraulic cutter and breaks device.
Background technology
For the engineering that can not blow construction up with dynamite, existing Work machine and process have following several:
(1) adopt plavini that rock is carried out fragmentation, it is divided into again two kinds: the first is chemically expansible method, first punches to rock with rig, is filled into by expansion agent in hole, adopts the expansion of expansion agent to carry out fragmentation construction to rock.Second method, adopts hydraulic pressure to split stone machine distending method and first punches to rock with rig, then inserts hydraulic pressure and splits stone machine, start the machine, apply high pressure to oil cylinder, splits stone machine and applies pressure by rock distending to rock.The advantage of plavini is job site noiselessness, free from dust, meets the requirement not allowing blast working; Shortcoming is inefficiency, and engineering construction progress is slow.
(2) machine crush method is adopted to carry out fragmentation to rock.Quartering hammer commonly by being installed at digger operating device front end carries out fragmentation construction to rock.Its principle take hydrostatic pressure as power, drives impact piston to move back and forth, clash into drill steel, by drill steel fractured rock during impact piston stroke.
During quartering hammer fractured rock, be a kind of low-frequency strike equipment, on market, the striking frequency of various quartering hammer is each second 5 times ~ about 12 times.During construction, noise is large, and dust is large, is generally used for the second-time breakage to large rock after explosion, constructs for overall rock, inefficiency.The main cause of its inefficiency is exactly that reversal valve pressure differential susceptibility in quartering hammer is poor, its hydraulic fluid flow rate is greater than 100 liters/min, need larger hydraulic fluid pressure and flow that reversal valve just can be made to commutate, need the excavator tonnage of outfit large, cause construction total cost high.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of beating frequency high, and the all-hydraulic cutter that required supporting digging machine tonnage is little breaks device, and when its application is with engineering construction, speed is fast, and cost is low.
The technical scheme that the utility model is dealt with problems is: a kind of all-hydraulic cutter breaks device, comprise bit shank device, accumulator and potted component, especially also hydraulic actuator is comprised, establish the A cylinder body of high-pressure oil duct in this hydraulic actuator comprises and be placed in the impact piston of A cylinder body, impact piston is provided with drain pan, and A cylinder body two ends are respectively equipped with the fairlead being socketed in impact piston outer wall;
A cylinder interior is also provided with a-signal hydraulic fluid port, and B signal hydraulic fluid port;
A cylinder head is connected with bit shank device, is provided with drill steel in bit shank device, drill steel axis and impact piston axial alignment;
A cylinder body top is provided with reversal valve, is provided with the oil duct leading to A cylinder body oil cylinder in reversal valve, and reversal valve front end is connected with accumulator and the two oil duct communicates;
Described A cylinder body is provided with oil-in, and reversal valve is provided with oil return opening, and oil-in and oil return opening are respectively by oil inlet pipe and oil return pipe connecting excavator hydraulic system.
In technique scheme, the frequency of impact of impact piston is 30 ~ 40HZ;
Oil-in hydraulic fluid flow rate is 60 ~ 80 liters/min;
A-signal hydraulic fluid port and B signal hydraulic fluid port spacing, for being 20 ~ 35mm, are preferably 35mm; Impact piston stroke, for being 20 ~ 35mm, is preferably 35mm;
The commutation stroke of reversal valve, for being 10 ~ 15mm, is preferably 10mm.
Described bit shank device comprises B cylinder body, and the upper cylinder sleeve be arranged in B cylinder body and lower cylinder sleeve, is provided with drill steel in upper and lower cylinder sleeve.
The course of work that this all-hydraulic cutter breaks device is: hydraulic oil flows through high-pressure oil duct, reversal valve and the oil return pipe in the broken device A cylinder body of all-hydraulic high frequency cutter by the oil inlet pipe of excavator hydraulic system, through the switch of reversal valve and the energy of accumulator release, make the high-frequency up and down reciprocatingly rectilinear motion of impact piston, impact piston high-speed impact drill steel, kinetic energy is delivered to rock by drill steel, realizes the fragmentation to rock.
Remarkable result of the present utility model is:
The utility model combines the advantage of percussive drill and quartering hammer, by shortening the distance between a-signal hydraulic fluid port and B signal hydraulic fluid port, thus shortening impact piston stroke, making impact piston within the unit interval, move back and forth number of times more; Meanwhile, the corresponding size shortening reversal valve, increases reversal valve pressure differential susceptibility, only needs less hydraulic fluid pressure and flow to get final product sensitive commutation, makes reversing valve core more at unit interval commutation number of times.
Therefore, impact piston stroke shortens, and reversal valve commutation is accelerated to make impact piston within the unit interval, impact the increased frequency of bit shank, and achieve the effect of relatively traditional quartering hammer high frequency operation more, operating efficiency is higher.
And its hydraulic fluid flow rate is 60 ~ 80 liters/min, do not need very large hydraulic fluid pressure and flow that reversal valve just can be made to commutate, relative legacy equipment needs the excavator tonnage of outfit less, and construction total cost reduces greatly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is that the all-hydraulic cutter of the utility model breaks device front view.
Fig. 2 is that the all-hydraulic cutter of the utility model breaks device lateral view.
Fig. 3 is the structure chart that the all-hydraulic cutter of the utility model breaks device original state.
Fig. 4 is the structure chart that the all-hydraulic cutter of the utility model breaks device reversal valve commutation states.
Fig. 5 is the structure chart that the all-hydraulic cutter of the utility model breaks device impact piston stroke state.
Fig. 6 is the structure chart that the all-hydraulic cutter of the utility model breaks device reversal valve commutation states again.
In figure, 1-A cylinder body, 2-fairlead, 3-valve pocket, 4-impact piston, 5-oil-in, 6-oil return opening, 7-end cap, 8-drain pan, 9-accumulator, 10-reversal valve, 11-drill steel, 12-A signal hydraulic fluid port, 13-B signal hydraulic fluid port, 14-A chamber, 15-B chamber, 16-C chamber, 17-B cylinder body, the upper cylinder sleeve of 18-, cylinder sleeve under 19-.
Detailed description of the invention
For convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description, as: the position relationship of left and right grade determines according to the Butut direction of Figure of description.
As shown in Fig. 1 ~ 2, a kind of all-hydraulic cutter breaks device, comprise bit shank device, accumulator 9 and potted component, especially also hydraulic actuator is comprised, establish the A cylinder body 1 of high-pressure oil duct in this hydraulic actuator comprises and be placed in the impact piston 4 of A cylinder body 1, impact piston 4 is provided with drain pan 8, A cylinder body 1 two ends and is respectively equipped with the fairlead 2 being socketed in impact piston 4 outer wall, is also provided with the anti abrasive valve pocket 3 coordinated with impact piston in A cylinder body simultaneously;
A cylinder body 1 inside is also provided with a-signal hydraulic fluid port 12, and B signal hydraulic fluid port 13;
A cylinder body 1 head is connected with bit shank device, and described bit shank device comprises B cylinder body 17, and the upper cylinder sleeve 18 be arranged in B cylinder body 17 and lower cylinder sleeve 19, is provided with drill steel 11, drill steel 11 axis and impact piston 4 axial alignment in upper and lower cylinder sleeve;
A cylinder body 1 top is provided with reversal valve 10, is provided with the oil duct leading to A cylinder body 1 oil cylinder in reversal valve 10, and reversal valve 10 front end is connected with accumulator 9 and the two oil duct communicates;
A cylinder body 1 afterbody is provided with end cap 7;
Described A cylinder body 1 is provided with oil-in 5, and reversal valve is provided with oil return opening 6, and oil-in 5 and oil return opening 6 are respectively by oil inlet pipe and oil return pipe connecting excavator hydraulic system.
In technique scheme, the frequency of impact of impact piston 4 is 30 ~ 40HZ;
Oil-in 5 hydraulic fluid flow rate is 60 ~ 80 liters/min;
A-signal hydraulic fluid port 12 and B signal hydraulic fluid port 13 spacing are 35mm, and impact piston 4 stroke is 35mm;
The commutation stroke of reversal valve 10 is 10mm.
This all-hydraulic cutter breaks the operating principle of implement body as illustrated in figures 3-6:
Original state (see Fig. 3): when the apparatus is shut, impact piston 4 is positioned at bottom, contacts with bit shank, and reversal valve 10 is positioned at low order end, and now impact piston 4 back cavity, a-signal hydraulic fluid port 12, B signal hydraulic fluid port 13 communicate with oil return opening 6;
Impact piston backhaul: when oil-in 5 oil-feed, pressure oil enter into piston ante-chamber, reversal valve 10 A chamber 14 and arrive C chamber 16 by the centre bore of reversal valve 10, now pressure oil promotes impact piston 4 and makes drawback movement to the right;
Reversal valve commutates: see Fig. 4, when the step of impact piston 4 arrives a-signal hydraulic fluid port 12 position, pressure oil enters into reversal valve B chamber 15 through a-signal hydraulic fluid port 12, now the area in reversal valve B chamber 15 and C chamber 16 is added the lifting surface area being greater than A chamber 14, pressure oil promotion reversal valve 10 is moved to the left and commutates, now reversal valve 10 cuts out the passage of impact piston 4 back cavity and oil return opening 6 gradually, until finally close completely; Reversal valve C chamber 16 is communicated with the back cavity of impact piston 4 simultaneously, and pressure oil enters into piston back cavity, and impact piston 4 continues upwards, and now impact piston 4 does retarded motion until stop, as shown in Figure 5;
Impact piston stroke: as Fig. 5, after impact piston 4 retarded motion stops, now before and after impact piston 4, the pressure in chamber is equal; Stress surface along with impact piston 4 back cavity is greater than the stress surface of impact piston 4 ante-chamber, and pressure oil promotion impact piston 4 moves to left and makes stroke movement;
Reversal valve commutates: as Fig. 6, when the drain pan 8 on impact piston 4 arrives B signal hydraulic fluid port 13 position, the B chamber 15 of reversal valve communicates with oil return opening 6, and pressure oil promotes reversal valve 10 and moves to the right, and impact piston 4 accelerates to left movement simultaneously, impact bit shank; Reversal valve is closure piston back cavity gradually, and piston back cavity communicates with oil return opening, piston back cavity draining, and initial position got back to by impact piston 4, reversal valve 10.
Circulation like this is moved repeatedly, realizes high-frequency impact.
Claims (6)
1. an all-hydraulic cutter breaks device, comprise bit shank device, accumulator and potted component, it is characterized in that: also comprise hydraulic actuator, establish the A cylinder body of high-pressure oil duct in this hydraulic actuator comprises and be placed in the impact piston of A cylinder body, impact piston is provided with drain pan, and A cylinder body two ends are respectively equipped with the fairlead being socketed in impact piston outer wall;
A cylinder interior is also provided with a-signal hydraulic fluid port, and B signal hydraulic fluid port;
A cylinder head is connected with bit shank device, is provided with drill steel in bit shank device, drill steel axis and impact piston axial alignment;
A cylinder body top is provided with reversal valve, is provided with the oil duct leading to A cylinder body oil cylinder in reversal valve, and reversal valve front end is connected with accumulator and the two oil duct communicates;
Described A cylinder body is provided with oil-in, and reversal valve is provided with oil return opening, and oil-in and oil return opening are respectively by oil inlet pipe and oil return pipe connecting excavator hydraulic system.
2. all-hydraulic cutter according to claim 1 breaks device, it is characterized in that: the frequency of impact of impact piston is 30 ~ 40HZ.
3. all-hydraulic cutter according to claim 1 breaks device, it is characterized in that: oil-in hydraulic fluid flow rate is 60 ~ 80 liters/min.
4. all-hydraulic cutter according to claim 1 breaks device, it is characterized in that: a-signal hydraulic fluid port and B signal hydraulic fluid port spacing are 20 ~ 35mm, and impact piston stroke is 20 ~ 35mm.
5. all-hydraulic cutter according to claim 1 breaks device, it is characterized in that: the commutation stroke of reversal valve is 10 ~ 15mm.
6. all-hydraulic cutter according to claim 1 breaks device, it is characterized in that: described bit shank device comprises B cylinder body, and the upper cylinder sleeve be arranged in B cylinder body and lower cylinder sleeve, is provided with drill steel in upper and lower cylinder sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679554.4U CN204225757U (en) | 2014-11-14 | 2014-11-14 | A kind of all-hydraulic cutter breaks device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679554.4U CN204225757U (en) | 2014-11-14 | 2014-11-14 | A kind of all-hydraulic cutter breaks device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204225757U true CN204225757U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679554.4U Expired - Fee Related CN204225757U (en) | 2014-11-14 | 2014-11-14 | A kind of all-hydraulic cutter breaks device |
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| CN (1) | CN204225757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373038A (en) * | 2014-11-14 | 2015-02-25 | 长沙瑞巢机械有限公司 | Full-hydraulic chiseling device |
-
2014
- 2014-11-14 CN CN201420679554.4U patent/CN204225757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373038A (en) * | 2014-11-14 | 2015-02-25 | 长沙瑞巢机械有限公司 | Full-hydraulic chiseling device |
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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: 20150325 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |