Utility model content
To overcome the above technological deficiency, the technical issues of the utility model solves, is to provide a kind of oil cylinder and crusher, energy
Enough it is accurately realized the flexible reset of oil cylinder.
In order to solve the above technical problems, the utility model provides a kind of oil cylinder comprising cylinder barrel, piston, piston rod with
And Bit andits control mechanism, Bit andits control mechanism are used to close the work of oil cylinder when piston rod stretches out pre-determined distance relative to cylinder barrel
Oil circuit.
Further, Bit andits control mechanism includes controller and displacement sensor, and displacement sensor is for detecting piston rod
Relative to cylinder barrel stretch out displacement and feed back to controller, controller be used for be displaced it is consistent with pre-determined distance when close oil cylinder
Working oil path.
Further, displacement sensor includes the detection bar that protrudes into piston and piston rod and is arranged in piston and ring set
The annulus magnet of detection bar.
Further, Bit andits control mechanism includes controller and trigger member that can be fixed relative to piston rod, and trigger member is used
In when piston rod stretches out pre-determined distance trigger controller to close the working oil path of oil cylinder.
Further, trigger member is the ring baffle for being arranged in the rod chamber of oil cylinder and being slidably located on piston rod,
Rod chamber is divided into the first chamber and the second chamber for being distal and proximal to piston by ring baffle, and trigger member is solid relative to piston rod
The fixed oil feeding line by closing the second chamber is realized.
Further, controller includes the travel switch being arranged on cylinder barrel, for when piston rod stretches out pre-determined distance
It is triggered by ring baffle to close the working oil path of oil cylinder.
Further, the hollow cavity communicated with the second chamber is equipped in piston rod, the extension end of piston rod is equipped with and hollow cavity
The piston rod hydraulic fluid port communicated, oil feeding line pass through piston rod hydraulic fluid port and hollow cavity to the second chamber oil inlet or oil return.
The utility model additionally provides a kind of crusher comprising above-mentioned oil cylinder, oil cylinder are used to adjust the row of crusher
Material mouth size.
It further, further include rack, counterpunch board and rotor, cylinder barrel and rack are fixedly installed, counterpunch board and piston rod
Extension end be connected.
Further, crusher is impact breaker.
As a result, based on the above-mentioned technical proposal, the utility model oil cylinder passes through Bit andits control by setting Bit andits control mechanism
Mechanism closes the working oil path of oil cylinder when piston rod stretches out pre-determined distance relative to cylinder barrel, and the outreach of piston rod is accurate
Control, and can accurately realize reset after piston rod compression, high reliablity, exploitativeness are good.It is provided by the utility model
Crusher is by the oil cylinder, so that resetting accurate, exploitativeness with higher.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The illustrative embodiments and their description of the utility model are only used for explaining the utility model, do not constitute to the utility model not
Work as restriction.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model oil cylinder embodiment;
Fig. 2 is the structural schematic diagram of the utility model crusher embodiment.
Each appended drawing reference respectively represents:
1, oil cylinder;11, cylinder bottom;12, cylinder barrel;12-1, rodless cavity hydraulic fluid port;12-2, rod chamber hydraulic fluid port;13, piston;14, it touches
Outbox;15, guide sleeve;16, piston rod;16-1, head;16-2, the body of rod;16-3, core pipe;16-4, earrings;16-5, connection oil
Mouthful;16-6, piston rod hydraulic fluid port;17, displacement sensor;18, annulus magnet;19, residual shim;20, travel switch;A, without bar
Chamber;B, the first chamber;C, the second chamber.
Specific embodiment of the present utility model is asked for the ease of the design to the utility model, the technology that is solved
Topic, the technical characteristic for constituting technical solution and bring technical effect have further description.It should be noted that for this
The explanation of a little embodiments does not constitute the restriction to the utility model.In addition, the embodiment party of the utility model described below
Technical characteristic involved in formula can be combined with each other as long as they do not conflict with each other.
In the utility model oil cylinder one schematical embodiment, as shown in Figure 1, oil cylinder 1 includes cylinder bottom 11, cylinder barrel
12, piston 13, guide sleeve 15, piston rod 16 and Bit andits control mechanism, Bit andits control mechanism be used for piston rod 16 relative to
Cylinder barrel 12 closes the working oil path of oil cylinder 1 when stretching out pre-determined distance.
In the schematical embodiment, oil cylinder 1 is by setting Bit andits control mechanism, by Bit andits control mechanism in piston
Bar 16 closes the working oil path of oil cylinder when stretching out pre-determined distance relative to cylinder barrel 12, piston rod 16 stops stretching out, piston rod 16
Outreach is distribution accurately controlled, and reset can be accurately realized after piston rod compression, high reliablity, and exploitativeness is good.
As the first preferred implementation of Bit andits control mechanism, as shown in Figure 1, Bit andits control mechanism include controller and
Displacement sensor 17, displacement sensor 17 are used to detect the displacement that piston rod 16 is stretched out relative to cylinder barrel 12 and feed back to control
Device, controller are used to close the working oil path of oil cylinder 1 when the stretching displacement of piston rod 16 is consistent with pre-determined distance.Displacement passes
The setting of sensor can accurately know the stretching displacement of piston rod 16, and when stretching displacement reaches pre-determined distance, controller is closed
The working oil path of oil cylinder 1, i.e. the rodless cavity A of oil cylinder 1 and the oil circuit of rod chamber are shut, and piston rod 16 steadily rests on pre-
If at distance and position, exploitativeness with higher.
Wherein, as shown in Figure 1, in a specific embodiment, displacement sensor 17, which preferably includes, protrudes into piston 13
With the detection bar in piston rod 16 and be arranged in piston 13 and the annulus magnet 18 of ring set detection bar, the structure type pass through reality
Trampling proves that detection accuracy is high, is additionally provided with residual shim 19 at the position close to annulus magnet 18.
Certainly, displacement sensor can also be the displacement sensor of other structures form, such as photoelectric sensor.
As the second preferred implementation of Bit andits control mechanism, still as shown in Figure 1, Bit andits control mechanism includes controller
With trigger member 14 that can be fixed relative to piston rod 16, trigger member 14 is used for the triggering control when piston rod 16 stretches out pre-determined distance
Device is to close the working oil path of oil cylinder 1.Trigger member 14 can be fixedly provided on piston rod 16, needing to adjust piston rod 16
When the pre-determined distance of stretching, change fixation position of the trigger member 14 relative to piston rod 16, when piston rod 16 stretches out new preset
Apart from when 14 trigger controller of trigger member, controller closes the working oil path of oil cylinder 1, and piston rod 16 steadily rests on new pre-
If at distance and position, exploitativeness with higher.When piston rod 16, which receives external pressure, to be retracted, trigger member 14 is relative to work
Stopper rod 16 is fixed, triggers control again when external pressure disappearance piston rod 16 extend out to trigger member 14 at pre-determined distance position again
Device processed, controller close the working oil path of oil cylinder 1, and piston rod 16 steadily rests at the pre-determined distance position, to realize
The accurate reset of oil cylinder has very high exploitativeness.
For how to realize that trigger member 14 is adjustable relative to the fixation position of piston rod 16, in a preferred embodiment
In, as shown in Figure 1, trigger member 14 is the ring baffle for being arranged in the rod chamber of oil cylinder 1 and being slidably located on piston rod 16,
Rod chamber is divided into the first chamber B and the second chamber C for being distal and proximal to piston 13 by ring baffle, by the first chamber B and
Second chamber C fuel feeding realizes that trigger member 14 is adjustable relative to the position of piston rod 16, and trigger member 14 is solid relative to piston rod 16
Rule is realized by closing the oil feeding line of the second chamber C.Specifically or preferably, as shown in Figure 1, controller includes being arranged in cylinder
Travel switch 20 on cylinder 12, for being triggered when piston rod 16 stretches out pre-determined distance by ring baffle to close the work of oil cylinder 1
Make oil circuit, it is easy to accomplish, exploitativeness is high.
In order to guarantee that oil feeding line to the second chamber C reliably oil inlet or oil return, avoids piston rod from blocking in telescopic process
The fuel feeding of second chamber C, at one specifically or in preferred embodiment, as shown in Figure 1, piston rod 16 includes head 16-1, bar
Body 16-2 and core pipe 16-3, piston rod 16 is interior to be equipped with the hollow cavity communicated with the second chamber C, and hollow cavity passes through connection hydraulic fluid port 16-5
It is communicated with the second chamber C, the extension end of piston rod 16 is equipped with the piston rod hydraulic fluid port 16-6 communicated with hollow cavity, and oil feeding line passes through work
Stopper rod hydraulic fluid port 16-6 and hollow cavity are to the second chamber C oil inlet or oil return.
Bit andits control mechanism in certain the utility model oil cylinder can include displacement sensor 17 and trigger member 14 simultaneously,
The two cooperates, it is ensured that the positioning accuracy of piston rod.
The utility model additionally provides a kind of crusher comprising above-mentioned oil cylinder 1, oil cylinder 1 is for adjusting crusher
Discharge gate size.The discharge gate size of crusher is adjusted by the way that the utility model oil cylinder is applied to crusher, is not only realized
The automatic adjustment of discharge gate, while having and overloaded iron and auto-reset function.The utility model oil cylinder is particularly suitable for instead
Impact crusher.
At the utility model crusher one specifically or in preferred embodiment, as shown in Fig. 2, crusher further includes machine
Frame 2, counterpunch board 3 and rotor 4, cylinder barrel 12 and rack are fixedly installed, the earrings 16-4 of the extension end of counterpunch board 3 and piston rod 16
It is connected, forms the discharge gate of crusher between counterpunch board 3 and rotor 4.
Illustrate that the utility model oil cylinder is applied to the work of crusher by taking Fig. 1 and embodiment shown in Fig. 2 as an example below
Process is as follows:
Original state, rotor 4 is static and is in designated position, and the size at a distance from rotor 4 of counterpunch board 3 decides discharge gate
Size, the size of discharge gate needed for first inputting to controller, controller can be converted to discharge gate size according to setting program
The mobile pre-determined distance of piston rod 16, piston rod 16 connect counterpunch board 3, the rodless cavity hydraulic fluid port 12-1 oil inlet of rodless cavity A, the first chamber
The rod chamber hydraulic fluid port 12-2 oil return of B, the piston rod hydraulic fluid port 16-6 oil return of the second chamber C can push piston 13, piston rod 16 and counterattack
Plate 3 moves forward, and after counterpunch board 3 and the contact of rotor 4, receives controller instruction, rod chamber hydraulic fluid port 12-2 oil inlet, rodless cavity oil
Mouth 12-1 oil return, piston rod 16 drive counterpunch board 3 to move backward pre-determined distance, the automatic adjustment of discharge gate can be realized.
After the size adjustment of discharge gate, the oil circuit of rodless cavity A is closed, and the second chamber C passes through piston rod hydraulic fluid port 16-6
With connection hydraulic fluid port 16-5 oil inlet, rod chamber hydraulic fluid port 12-2 oil return, oil liquid pushes trigger member 14 mobile to 15 direction of guide sleeve, triggering
Part 14 is moved to terminal and pushes down travel switch 20, and controller obtains signal, the oil circuit of rodless cavity A, the first chamber B and the second chamber C
It closes;When system overload crosses iron, the rodless cavity A pressure rise of oil cylinder 1 is more than setting value, and rodless cavity hydraulic fluid port 12-1 draining has
Rod cavity hydraulic fluid port 12-2 repairing, discharge gate become larger, and overload iron material and are excluded, simultaneously because the oil circuit of the second chamber C is closed, triggering
Part 14 is mobile and mobile to the direction far from guide sleeve 15 with piston rod 16, and travel switch 20 powers off at this time, and controller obtains letter
Number, then control rodless cavity hydraulic fluid port 12-1 oil inlet, rod chamber hydraulic fluid port 12-2 oil return, trigger member 14 it is mobile with piston rod 16 and again to
Guide sleeve 15 is mobile and pushes down travel switch 20, and the oil circuit of rodless cavity A, the first chamber B and the second chamber C are closed, and counterpunch board 3 is multiple
Position, discharge gate reset, and the entire duty cycle moves in circles, and realize protection and the auto-reset function for overloading iron.
The embodiment combined above is described in detail the embodiments of the present invention, but the utility model not office
It is limited to described embodiment.For example, the utility model oil cylinder is also applied in Other Engineering motor vehicles and machines.For this
For the technical staff in field, in the case where not departing from the principles of the present invention and connotation to these embodiments into
The a variety of variations of row, modification, equivalence replacement and modification still fall within and are within the protection scope of the utility model.