CN104948188B - Overload protection device for stone cracking equipment - Google Patents
Overload protection device for stone cracking equipment Download PDFInfo
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- CN104948188B CN104948188B CN201510391234.8A CN201510391234A CN104948188B CN 104948188 B CN104948188 B CN 104948188B CN 201510391234 A CN201510391234 A CN 201510391234A CN 104948188 B CN104948188 B CN 104948188B
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- expansion
- pressure
- overload protection
- overload
- protection arrangement
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- 239000004575 stone Substances 0.000 title claims abstract description 96
- 238000005336 cracking Methods 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 33
- 238000009825 accumulation Methods 0.000 description 13
- 230000035772 mutation Effects 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 208000035126 Facies Diseases 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to exploitation of stone, in particular to an overload protection device for stone cracking equipment. The problem that existing stone cracking equipment cannot detect the stone cracking degree in time and then cannot control the stone cracking pressure in time is solved. The overload protection device comprises an overload sensor and a controller. The overload sensor is used for detecting the stone cracking degree in the stone cracking process, the controller is communicated with the overload sensor, and the controller gives out a command to lower the pressure of liquid conveyed to an expansion device of the stone cracking equipment once receiving a stone cracking signal from the overload sensor. By means of the structure, the overload protection device can control a hydraulic source or a pressure release valve in time to lower the pressure of liquid conveyed to the expansion pipe, the risk that the pipe is burst due to the fact that the expansion pipe bears too high pressure or squeezed into a stone crack is avoided, and meanwhile stone can be gradually cracked in a moderate mode.
Description
Technical field
The present invention relates to exploitation of stone, specifically provides a kind of overload protection arrangement for splitting stone equipment.
Background technology
Existing hydraulic pressure splits stone equipment includes multiple expansion gears, and each expansion gear generally comprises the swollen of two pairings
Swollen housing and the elastic rubber tube of expansion tube-i.e. being arranged in expansion housing.In operation, manually or electric hydaulic
Pump is transported to fluid under pressure in the elastic rubber tube, and the pressure of the fluid under pressure in elastic rubber tube persistently increases, elastic rubber tube because
This prolonged expansion simultaneously extrudes two expansion housings, so as to applying directional power to building stones and therefore making which ftracture.
The existing stone equipment that splits relies on whether operator's naked-eye observation building stones ftracture, and controls splitting for hydraulic power source offer accordingly
Stone pressure.However, naked-eye observation has sizable hysteresis quality, it is impossible to capture information in the very first time of building stones cracking, this
Cause in the case where building stones have ftractureed, hydraulic pump also continues to the conveying high-pressure liquid in expansion tube, make expansion tube bear milli
High pressure that is unnecessary and persistently rising, causes the service life of expansion tube to shorten, even results in certain extreme cases swollen
Tube expansion is squeezed in the crack of building stones and therefore booster.
For above-mentioned technical problem, some prior arts are detected the pressure in expansion tube, work as expansion tube using piezometer
In pressure when undergoing mutation, estimate building stones and ftractureed and controlled the hydraulic pressure of hydraulic power source accordingly and export.However, initial in building stones
During cracking, the size in crack is very little, and the pressure jump of corresponding expansion tube change in size and its inside is also very little, almost without
Method is detected.When there is pressure jump in detecting expansion tube, the crack of building stones is very big, and now expansion tube undergoes
Damage to a certain extent.Therefore, above-mentioned prior art also cannot detect the cracking of building stones in time, and also can using piezometer
Substantially increase the cost for splitting stone equipment.Correspondingly, this area needs a kind of device of low cost to efficiently solve this problem.
The content of the invention
Present invention seek to address that the existing stone equipment that splits can not detect building stones cracking degree in time therefore cannot control in time to split
The problem of stone pressure.For this purpose, the present invention provides a kind of overload protection arrangement for splitting stone equipment.This splits stone equipment includes
Hydraulic power source, at least one expansion gear, the overload protection arrangement and the hydraulic power source is connected with the expansion gear
Hydraulic tube；Each described expansion gear includes：First expansion housing；Second expansion housing, in assembled state described the
One expansion housing is opposite each other with the described second expansion housing and forms cavity between them；And expansion tube, its setting
In the cavity and it is connected to the hydraulic tube.The overload protection arrangement includes transshipping sensing device and controller, described
Degree of the overload sensing device for the detection building stones cracking in stone operating process is split, the controller and the overload sensing dress
Put connection, once the controller from it is described overload sensing device receive show building stones cracking signal when, the controller
The pressure of the fluid under pressure for reducing being conveyed to the expansion gear by order is sent.
In the preferred implementation of above-mentioned overload protection arrangement, the overload sensing device includes being connected to described first
Strain transducer between expansion housing and the second expansion housing, the strain transducer is in stone operating process is split
The degree of detection building stones cracking.
In the preferred implementation of above-mentioned overload protection arrangement, the overload sensing device also includes elastic component, institute
The top that elastic component is connected to the first expansion housing and the described second expansion housing is stated, the strain transducer is attached to
Can stretch on the elastic component and together with the elastic component.
In the preferred implementation of above-mentioned overload protection arrangement, the elastic component is elastic webbing, the elastic webbing bag
Include elastomeric belt body and be connected to first end ring and the second end ring at the elastomeric belt body two ends；And described first
The first projection and the second projection are respectively arranged with the top of expansion housing and the second expansion housing, in the state for assembling
Under, the first end ring set is on first projection and second end ring is enclosed within second projection, so as to by institute
State the top that elastic webbing is connected to the first expansion housing and the second expansion housing.
In the preferred implementation of above-mentioned overload protection arrangement, the elastic component is spring, and the spring includes bullet
Spring body and be connected to the spring body two ends the 3rd end ring and the 4th end ring；And first expanding shell
The first projection and the second projection are respectively arranged with the top of body and the second expansion housing, it is in assembled state, described
3rd end ring is enclosed within first projection and the 4th end ring is enclosed within second projection, so as to the spring is connected
It is connected to the top of the first expansion housing and the second expansion housing.
In the preferred implementation of above-mentioned overload protection arrangement, the overload protection arrangement also includes relief valve, once
The controller is received from the overload sensing device when showing the signal of building stones cracking, pressure release described in the control order
Valve is opened to reduce the pressure of the fluid under pressure for being conveyed to the expansion gear.
In the preferred implementation of above-mentioned overload protection arrangement, the overload sensing device is with the controller with wired
Mode or wireless communication mode connection.
In the preferred implementation of above-mentioned overload protection arrangement, the hydraulic power source is electric hydraulic pump, once the control
Device processed is received from the overload sensing device when showing the signal of building stones cracking, and hydraulic pump described in the control order stops
Operate to reduce the pressure of the fluid under pressure for being conveyed to the expansion gear.
In the preferred implementation of above-mentioned overload protection arrangement, the stone equipment that splits also includes connecting by the hydraulic tube
The energy distributor being connected between the hydraulic power source and the expansion gear, the energy distributor are used to adjust from the liquid
The flow or pressure of the liquid of potential source.
In the preferred implementation of above-mentioned overload protection arrangement, the relief valve is arranged on the energy distributor simultaneously
And the hydraulic power source is connected to, when the controller is received from the overload sensing device shows the signal of building stones cracking,
Relief valve described in the control order is opened so that the fluid under pressure in the expansion gear is back in the hydraulic power source.
Inventors herein have recognized that, even if in the case where naked eyes cannot be observed, building stones cracking also can most directly
The very first time is reflected in the change of the distance between two expansion housings of expansion gear.In view of this point, novelty of the present invention
Ground is provided with strain transducer at the top of two of expansion gear expansion housings, in the moment that building stones have just ftractureed, it is described should
Become sensor will detect the very first time strain mutation (now naked eyes cannot also observe obvious crack, piezometer also without
Method detects pressure jump), correspondingly, controller can control hydraulic power source or relief valve to reduce being conveyed to expansion tube in time
Hydraulic coupling, this avoids expansion tube and bears too high pressure or be squeezed into building stones crack and the therefore risk of booster, while also
Building stones can be made progressively to ftracture in the way of gentle.
Description of the drawings
Fig. 1 is the schematic diagram for splitting stone equipment of the invention.
Fig. 2 is the cutaway view Amplified image for splitting the expansion gear of stone equipment.
Fig. 3 is the top view of overload protection arrangement of the invention.
Fig. 4 is the side view for splitting the expansion gear of stone equipment, and the overload protection arrangement with the present invention is shown in figure
Two projections for using cooperatively.
Fig. 5 is the top perspective view of overload sensing device of the invention.
Fig. 6 is the strain facies that detects of strain transducer of overload sensing device of the invention for the mapping of time
Figure.
Specific embodiment
Fig. 1 is the schematic diagram for splitting stone equipment of the invention.As shown in figure 1, this splits stone equipment includes hydraulic power source 1, liquid
Pressure pipe 2 and at least one expansion gear 5, hydraulic tube 2 are connected between hydraulic power source 1 and expansion gear 5.It should be pointed out that being
The expansion gear 5 being arranged in building stones to be cracked is clearly illustrated, building stones are shown as in Fig. 1 are broken away along its pre-manufactured hole 6, and
And for the ease of indicating reference, do not draw the hatching line of building stones, and expansion gear 5 is not correspondingly cutd open along the hatching line
Open.As shown in figure 1, when carrying out splitting stone operation, prefabricated at least one hole 6 first on building stones, the quantity and expansion gear in hole 6
5 quantity is equal, and an expansion gear 5 is correspondingly arranged in each hole.Pre-manufactured hole 6 be sized and shaped to it is swollen
Swollen device 5 is similar and the wall of pre-manufactured hole 6 can be just extruded after expansion gear 5 somewhat expands.Hydraulic power source 1 is used for as expansion dress
5 offer fluid under pressures are provided.Preferably, hydraulic power source 1 is hydraulic oil container, or is attached to the hydraulic hand-pump or electricity of hydraulic oil container
Hydrodynamic press pump, hydraulic tube 2 are high-pressure oil pipes.Hydraulic power source shown in Fig. 1 is for hydraulic hand-pump and including manual lever 11, pump
Oil return opening 12, pump out hydraulic fluid port 13 and pump body 14.Splitting stone equipment is preferably also included for adjusting the liquid from hydraulic power source 1
The energy distributor 3 of flow or pressure, the energy distributor 3 by hydraulic tube 2 be connected to hydraulic power source 1 and expansion gear 5 it
Between.In the preferred embodiment illustrated in fig. 1, energy distributor 3 includes distributor body 31, flows into the outflow valve of valve 32, first
33rd, second flows out the outflow of valve the 34, the 3rd valve 35 and the 4th outflow valve 36.It is provided with pressure accumulation chamber (to show in figure in distributor body 31
Go out), the pressure accumulation chamber is for accumulating the fluid pressure from hydraulic power source 1 in stone operating process is split.It is being provided with energy distribution
In the case of device 3, pump body 14 is connected to energy distributor 3 via the upstream hydraulic tube 21 of hydraulic tube 2 by pumping out hydraulic fluid port 13
Inflow valve 32.Flow into valve 32 to be arranged on distributor body 31 and connect with the pressure accumulation chamber of distributor body 31, it is first-class
Go out valve 33, second flow out valve the 34, the 3rd flow out valve 35 and the 4th outflow valve 36 be arranged on distributor body 31 and all with storage
The connection of pressure chamber, pressure accumulation chamber are flowed out valve 35 and the 4th by the first outflow outflow valve the 34, the 3rd of valve 33, second respectively and flow out 36 phase of valve
Should ground via 4 downstreams the-the first downstream of hydraulic pressure arm hydraulic tube 22 of hydraulic tube 2, the second downstream hydraulic tube 23, the 3rd downstream liquid
Pressure pipe 24 and the 4th downstream hydraulic tube 25 are connected to 4 expansion gears 5 shown in Fig. 1.In operation, fluid under pressure is from pumping out oil
Mouth 13 enters the pressure accumulation chamber of distributor body 31 via the upstream hydraulic tube 21 of hydraulic tube 2 by flowing into valve 32, with pressurized fluid
The inflow of body, pressure accumulation intracavity is full of fluid under pressure and the pressure of fluid under pressure is further raised, and pressure accumulation chamber further will be boosted
Fluid under pressure afterwards is assigned to the first inflow valve 32, second and flows into valve the 34, the 3rd and flow into valve 35 and the 4th and flows into valve 36, this four
Flowing into valve is all the adjustable choke valve of aperture and can adjust the pressurized fluid for being flowed into the particular expansion device as needed
The flow and pressure of body.Fluid under pressure is respectively by these choke valves via under the first downstream hydraulic tube 22, second of hydraulic tube 2
Trip hydraulic tube 23, the 3rd downstream hydraulic tube 24 and the 4th downstream hydraulic tube 25 enter corresponding expansion gear 5.Alternatively, flow into
Valve 32 can be check valve, only allow the liquid from hydraulic power source not allow liquid to be back to hydraulic power source into pressure accumulation chamber.This
Sample one, pressure accumulation chamber can just play the effect of buffer, make hydraulic power source 1 in the case where not affected by expansion gear 5 with perseverance
Fixed flow rate conveying fluid under pressure.
With continued reference to Fig. 1, energy distributor 3 preferably also includes relief valve 37.As will be described, relief valve 37
For the pressure in pressure accumulation chamber (and therefore discharging expansion gear) is discharged when the order of controller is received.Relief valve 37 is arranged on
Connect on distributor body 31 and with pressure accumulation chamber, and relief valve 37 is connected to blowback by the backflow hydraulic tube 26 of hydraulic tube 2
Hydraulic fluid port 12.Blowback hydraulic fluid port 12 is arranged on pump body 14 and is connected with pump body 14, so as to the fluid under pressure of pressure accumulation intracavity can
To pass through relief valve 37 via backflow hydraulic tube 26 and be back to pump body 14 by blowback hydraulic fluid port 12.Alternatively, according to this
The energy distributor 3 of invention may be arranged so that fluid under pressure is flowed back via other hydraulic tubes from pressure accumulation chamber by relief valve 37
To hydraulic oil container.Although what is illustrated in Fig. 1 splits stone equipment with 4 expansion gears 5 and 4 outflow valves it should be appreciated that
, the other quantity-such as including but not limited to 1,2,3,5 and 6 that can also be arranged in addition to 4 of the invention
Expansion gear carrying out splitting lapicide's work.It should be noted that the outflow valve quantity of the quantity of expansion gear and energy distributor 3
It is equal.In the expansion gear and outflow valve for being provided with other quantity, energy distributor of the invention can equally be realized
Flow and the adjustment of pressure to the fluid under pressure of inflow expansion gear.It should be pointed out that all parts in Fig. 1 be not by than
What example was drawn；In order to preferably show details, the illustrated dimensions of expansion gear 5 are exaggerated.Therefore, it is each in accompanying drawing
Illustrated dimensions between individual part are not intended as the size to part and relative size is implied or limited.
Fig. 2 is the cutaway view Amplified image for splitting the expansion gear 5 of stone equipment of the invention.Expansion gear 5 includes
One expansion housing 51, second expansion housing 55 and expansion tube 53.Splitting in the state of stone equipment assembles, the first expansion housing 51
Opposite each other and form cavity between them with the second expansion housing 55, expansion tube 53 is arranged in the cavity and is abutted
First expansion housing 51 and the second expansion housing 55.Specifically, the company between the downstream hydraulic tube and expansion gear 5 of hydraulic tube 2
Connect is realizing by the hydraulic joint 4 for being connected to expansion tube 53 of expansion gear 5.Fluid under pressure is defeated through hydraulic joint 4
Expansion tube 53 is sent to, so that expansion tube 53 expands and extrude the first expansion housing 51 and the second expansion housing 55.First and
Two expansion housings 51,55 extrude building stones due to the extruding by expansion tube 53.The pressure foot of the fluid under pressure in expansion tube 53
When enough big, the extruding force of first and second expansion 51,55 pairs of building stones of housing is also sufficiently large, so as to the extruding force makes building stones ftracture.
Referring next to Fig. 3, the figure is the top view of overload protection arrangement of the invention.As shown in figure 3, of the invention
Overload protection arrangement include transshipping sensing device and controller (not shown).It is described to transship sensing device for splitting stone operation
During detect building stones cracking degree, the controller with it is described overload sensing device connect, once the controller is from institute
State overload sensing device receive show building stones cracking signal when, the controller will send order to reduce being conveyed to expansion
The pressure of the fluid under pressure of device 5.Specifically, overload sensing device of the invention include being connected to the first expansion housing 51 with
Second expansion housing 55 top elastic component 7 (such as elastic webbing) and attach-be for example bonded on elastic component 7 simultaneously
And the strain transducer 8 that can be stretched together with elastic component 7.More specifically, as shown in figure 5, elastic component 7 includes body 73
And it is connected to first end ring 71 and the second end ring 72 at 73 two ends of the body.Strain transducer 8 is pasted onto elastic structure
On the body 73 of part 7, and can stretch together with body 73.Preferably, the body 73 of elastic component 7 and the first end ring 71
It is integrally formed using same resilient material-such as rubber with the second end ring 72.
Referring next to Fig. 4 and with continued reference to the top of Fig. 3 and Fig. 5, the first expansion housing 51 and the second expansion housing 55
It is respectively arranged with the first projection 511 and the second projection 551.In assembled state, the first end ring 71 is enclosed within the first projection 511
Upper and the second end ring 72 is enclosed within the second projection 551, so as to the elastic component 71 is integrally connected to the first expansion housing
51 and second expansion housing 55 top.
In the alternative, the elastic component 7 can be spring.Similarly, the spring also includes spring sheet
Body and be connected to the spring body two ends the 3rd end ring and the 4th end ring.In assembled state, it is described
3rd end ring is enclosed within the first projection 511, and the 4th end ring is enclosed within the second projection 551, so as to the spring is connected to first
The top of expansion housing 51 and the second expansion housing 55.
In broad terms, overload protection arrangement of the invention also includes relief valve 37 mentioned above.In operation,
Once the controller receive from strain transducer 8 show building stones cracking signal when, the controller is with regard to order relief valve
37 open and are back in the hydraulic power source-such as hydraulic pump or fuel tank, so as to drop so as to the fluid under pressure allowed in expansion gear 5
Pressure in low bulk device 5, prevents expansion tube 53 to be damaged because of the further cracking of building stones.Enforcement alternately
Mode, when the hydraulic power source 1 is electric hydraulic pump, which can also be used as the actuator of overload protection.Once the control
Device is received from strain transducer 8 when showing the signal of building stones cracking, and the controller just orders the hydraulic pump to shut down
To reduce the pressure of the fluid under pressure for being conveyed to expansion gear 5.
Additionally, controller as herein described can be any type of combinational logic control device or microprogram control unit, only
Want which signal can be received from strain transducer 8, strain mutation content is judged according to the signal and is reached in strain mutation
Send to actuator (such as relief valve 37) during certain threshold value and order.Furthermore, strain transducer 8 and controller can be with
Wired mode or wireless communication mode connection, these are all that those skilled in the art can adjust as needed.
Fig. 6 is referred to finally, the figure is the strain facies that detects of strain transducer of the invention 8 for the mapping of time
Figure.The longitudinal axis of the mapping graph is the value of strain stress, and transverse axis is time ms (millisecond).As shown in fig. 6, from 0 to t1 first when
Section, the dependent variable that strain transducer 8 is detected gradually are increased with constant ratio, and this period just starts corresponding to stone operation is split
During between the moment just ftractureed to building stones, during this period, hydraulic power source 1 is rallentando to conveying pressurization in expansion tube 53
Liquid, correspondingly, the first expansion housing 51 and the second expansion housing 55 gradually squeeze building stones also along direction away from each other.Due to
Building stones are fragility in itself, so, when pressure applies to a certain extent, building stones ftracture at t1 points, two for now ftractureing piece
The distance between building stones can become suddenly big, correspondingly, bear against building stones the first expansion housing 51 and the second expansion housing 55 it
Between distance also can become suddenly big, this causes the length for being enclosed within the elastic component 7 at the top of housing 51 and 55 undergo mutation, finally
Cause the output valve of the strain transducer 8 being pasted onto on elastic component 7 undergo mutation.Period in Fig. 6 between t1 to t2
Then correspond to the output value mutation of strain transducer 8.It is clear from fig. 6 that, in the second period between t1 to t2,
The output valve of strain transducer 8 is increased considerably with the slope far above the first period.Now, control order relief valve 37 or
Hydraulic pump 1 performs corresponding operation, to reduce the liquid for being conveyed to expansion tube 53, so that building stones are with gentler, milder
Mode progressively ftractures.This is corresponding to the 3rd period in Fig. 6 between t2 to t3.Within the period, the output of strain transducer 8
Value being advanced the speed the second period of be not only below, while the preferably lower than very first time, because now building stones have split gap, enters one
The cracking of step pressure that need not be bigger.Finally, after building stones instant of complete cracking, control order relief valve 37 or hydraulic pump
1 gives 53 pressure release of expansion tube, so that the output valve of strain transducer 8 drops to 0 from peak within the 4th period from t3 to t4,
Therefore complete secondary fissure stone operation.
By above description as can be seen that the strain transducer 8 of the present invention can adopt any appropriate form, as long as
The distance mutation between the first expansion housing 51 and the second expansion housing 55 is able to detect that in the moment of building stones cracking.
In preferred implementation shown in the drawings, strain transducer 8 is the foil gauge being pasted onto on the body 73 of elastic component 7.
Skilled addressee readily understands that, different from perusal of the prior art or pressure detecting, this
It is bright to be innovatively provided with strain transducer at the top of two expansion housings of expansion gear, in the moment that building stones have just ftractureed
Strain mutation will be detected the very first time, and (now naked eyes cannot also observe obvious crack, and piezometer cannot also be detected
Pressure jump), controller reduces being conveyed to the hydraulic coupling of expansion tube therefore, it is possible to control hydraulic power source in time or relief valve, so as to
Avoid expansion tube to bear too high pressure or be squeezed into building stones crack and the therefore risk of booster, at the same building stones can also be made with
Gentle mode progressively ftractures.
So far, technical scheme is described already in connection with preferred implementation shown in the drawings, but, this area
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
On the premise of the principle of invention, those skilled in the art can make the change or replacement of equivalent to correlation technique feature, these
Technical scheme after changing or replacing it is fallen within protection scope of the present invention.
Claims (10)
1. a kind of overload protection arrangement for splitting stone equipment, this splits stone equipment includes hydraulic power source, at least one expansion gear, institute
The hydraulic tube stated overload protection arrangement and the hydraulic power source is connected with the expansion gear,
Each described expansion gear includes：First expansion housing；Second expansion housing, described first is swollen in assembled state
Swollen housing is opposite each other with the described second expansion housing and forms cavity between them；And expansion tube, which is arranged on institute
In stating cavity and it is connected to the hydraulic tube,
Characterized in that, the overload protection arrangement includes transshipping sensing device and controller, the overload sensing device is used for
The degree of building stones cracking is detected in stone operating process is split, the controller is connected with the overload sensing device, once it is described
Controller is received from the overload sensing device when showing the signal of building stones cracking, and the controller will send order to reduce
It is conveyed to the pressure of the fluid under pressure of the expansion gear.
2. overload protection arrangement according to claim 1, it is characterised in that the overload sensing device includes being connected to institute
State the first expansion housing and it is described second expansion housing between strain transducer, the strain transducer for splitting stone operation
During detect building stones cracking degree.
3. overload protection arrangement according to claim 2, it is characterised in that the overload sensing device also includes elastic structure
Part, the elastic component are connected to the top of the first expansion housing and the described second expansion housing, the strain transducer
It is attached on the elastic component and can stretches together with the elastic component.
4. overload protection arrangement according to claim 3, it is characterised in that the elastic component is elastic webbing, the bullet
Property band includes elastomeric belt body and is connected to first end ring and the second end ring at the elastomeric belt body two ends；And
The first projection and the second projection are respectively arranged with the top of the first expansion housing and the second expansion housing, in group
In the state of installing, the first end ring set is on first projection and second end ring is enclosed within second projection
On, so as to the elastic webbing to be connected to the top of the first expansion housing and the second expansion housing.
5. overload protection arrangement according to claim 3, it is characterised in that the elastic component is spring, the spring
Including spring body and the 3rd end ring and the 4th end ring at the two ends for being connected to the spring body；And
The first projection and the second projection are respectively arranged with the top of the first expansion housing and the second expansion housing, in group
In the state of installing, the 3rd end ring is enclosed within first projection and the 4th end ring is enclosed within second projection
On, so as to the spring to be connected to the top of the first expansion housing and the second expansion housing.
6. overload protection arrangement according to any one of claim 1 to 5, it is characterised in that the overload protection arrangement
Also include relief valve, once the controller from it is described overload sensing device receive show building stones cracking signal when, it is described
Relief valve described in control order is opened to reduce the pressure of the fluid under pressure for being conveyed to the expansion gear.
7. overload protection arrangement according to any one of claim 1 to 5, it is characterised in that the overload sensing device
Communicated to connect with the controller in a wired mode or wireless mode.
8. overload protection arrangement according to claim 6, it is characterised in that the hydraulic power source is electric hydraulic pump, once
The controller is received from the overload sensing device when showing the signal of building stones cracking, hydraulic pressure described in the control order
Pump shuts down to reduce the pressure of the fluid under pressure for being conveyed to the expansion gear.
9. overload protection arrangement according to claim 8, it is characterised in that the stone equipment that splits also is included by the liquid
Pressure pipe is connected to the energy distributor between the hydraulic power source and the expansion gear, the energy distributor be used to adjusting from
The flow or pressure of the liquid of the hydraulic power source.
10. overload protection arrangement according to claim 9, it is characterised in that the relief valve is arranged on the energy point
On orchestration and it is connected to the hydraulic power source, shows building stones cracking when the controller is received from the overload sensing device
During signal, relief valve described in the control order is opened so that the fluid under pressure in the expansion gear is back to the hydraulic pressure
In source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391234.8A CN104948188B (en) | 2015-07-06 | 2015-07-06 | Overload protection device for stone cracking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391234.8A CN104948188B (en) | 2015-07-06 | 2015-07-06 | Overload protection device for stone cracking equipment |
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| Publication Number | Publication Date |
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| CN104948188A CN104948188A (en) | 2015-09-30 |
| CN104948188B true CN104948188B (en) | 2017-03-22 |
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| CN201510391234.8A Expired - Fee Related CN104948188B (en) | 2015-07-06 | 2015-07-06 | Overload protection device for stone cracking equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864129B (en) * | 2016-05-26 | 2018-01-23 | 广东南曦液压机械有限公司 | Automatically split stone machine |
| CN108426828A (en) * | 2017-02-13 | 2018-08-21 | 埃梯梯精密机械制造（无锡）有限公司 | A kind of brake block test device and its test method |
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| CN101519965A (en) * | 2009-03-09 | 2009-09-02 | 黄晓东 | Method and device for exploiting stone |
| CN201358788Y (en) * | 2009-01-14 | 2009-12-09 | 朱殿才 | Expansion cracking device |
| CN103257153A (en) * | 2013-05-29 | 2013-08-21 | 中建八局第一建设有限公司青岛分公司 | Method for monitoring stress change state of compensating concrete expansion reinforcing band |
| CN204804850U (en) * | 2015-07-06 | 2015-11-25 | 北京旭日汇安矿山工程技术有限公司 | A excess loading protector for splitting stone equipment |
-
2015
- 2015-07-06 CN CN201510391234.8A patent/CN104948188B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1324310A (en) * | 1971-06-14 | 1973-07-25 | Darda H | Stone or rock splitting tools |
| CN86202119U (en) * | 1986-04-04 | 1987-02-04 | 王长伦 | Hydraulic elastic expansion fragmenting device |
| CN2044284U (en) * | 1986-11-18 | 1989-09-13 | 东北工学院 | High water pressur quarrying machine |
| CN2084980U (en) * | 1990-12-29 | 1991-09-18 | 顾孟寒 | Hydraulic static expander |
| CN101421491A (en) * | 2006-02-15 | 2009-04-29 | 埃姆斯敦股份公司 | Device for breaking solid material and method of manufacturing a hose element for such a device |
| CN201358788Y (en) * | 2009-01-14 | 2009-12-09 | 朱殿才 | Expansion cracking device |
| CN101519965A (en) * | 2009-03-09 | 2009-09-02 | 黄晓东 | Method and device for exploiting stone |
| CN103257153A (en) * | 2013-05-29 | 2013-08-21 | 中建八局第一建设有限公司青岛分公司 | Method for monitoring stress change state of compensating concrete expansion reinforcing band |
| CN204804850U (en) * | 2015-07-06 | 2015-11-25 | 北京旭日汇安矿山工程技术有限公司 | A excess loading protector for splitting stone equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104948188A (en) | 2015-09-30 |
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