CN209100551U - A kind of crusher counterpunch board buffer hydraulic system - Google Patents
A kind of crusher counterpunch board buffer hydraulic system Download PDFInfo
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- CN209100551U CN209100551U CN201821436118.9U CN201821436118U CN209100551U CN 209100551 U CN209100551 U CN 209100551U CN 201821436118 U CN201821436118 U CN 201821436118U CN 209100551 U CN209100551 U CN 209100551U
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Abstract
The utility model relates to a kind of crusher counterpunch board buffer hydraulic systems, including cushion cylinder and displacement sensor, the cushion cylinder includes back cavity, ante-chamber and intermediate cavity, the intermediate cavity is placed between the ante-chamber and the back cavity, the back cavity and the intermediate cavity by piston space every, by stop central spacer between the intermediate cavity and the ante-chamber, the locating snap ring is set on piston rod, and the piston rod end of the cushion cylinder connects crusher counterpunch board；The back cavity side wall is equipped with the support plate excessively for preventing back cavity oil pressure excessive；Institute's displacement sensors are used to detect the displacement of the piston.Hydraulic system in the utility model can realize the buffering and overload protection function of counterpunch board.
Description
Technical field
The present invention relates to a kind of Hydraulic system and control method more particularly to a kind of crusher counterpunch board buffering hydraulic systems
System.
Background technique
Crusher is in shattering process, reciprocal swing under the action of the spring after counterpunch board is hit, and stable is broken
Machine discharge gate and its size also affect the quality of material, meanwhile, when the object that crusher enters big specification material or cannot be crushed
When material such as iron block, it will cause crusher damage, lose huge.
Summary of the invention
The purpose of the present invention is to provide it is a kind of it is non-maintaining, the broken of intelligence setting discharge gate size and overload protection can be achieved
Broken machine buffer system, the system can realize that crusher counterpunch board buffer function, discharge gate are set automatically, vulnerable part is replaced and overload
Protection is particularly suitable for In Mine Crusher especially impact breaker and uses from maintenance.
The technical solution used in the present invention are as follows: a kind of crusher counterpunch board buffer hydraulic system, including cushion cylinder and
Displacement sensor, the cushion cylinder include back cavity, ante-chamber and intermediate cavity, and the intermediate cavity is placed in the ante-chamber and the back cavity
Between, the back cavity and the intermediate cavity by piston space every, by stop central spacer between the intermediate cavity and the ante-chamber,
The locating snap ring is set on piston rod, and the piston rod end of the cushion cylinder connects crusher counterpunch board；The back cavity side
Wall is equipped with the support plate excessively for preventing back cavity oil pressure excessive；Institute's displacement sensors are used to detect the displacement of the piston.
Further, the intermediate cavity disengaging oil is controlled by intermediate cavity control valve group, the intermediate cavity control valve group packet
Y4 solenoid valve, Y5 solenoid valve and Y13 solenoid valve are included, fuel tank connects by the entrance of hydraulic pump and check valve and the Y4 solenoid valve
It connects, the outlet of the Y4 solenoid valve connects the hydraulic fluid port of the intermediate cavity through Y5 solenoid valve, and the outlet of the Y4 solenoid valve is through Y13 electricity
Magnet valve oil return is to fuel tank.
Further, the back cavity and ante-chamber disengaging oil are controlled by front and back chamber control valve group, the front and back chamber control valve
Group includes Y1 solenoid valve, Y2 solenoid valve and pressure reducing valve, and the oil circuit into the front and back chamber control valve group is divided into three tunnels, first via warp
The Y1 solenoid valve connects the hydraulic fluid port of the ante-chamber, and the second tunnel connects the hydraulic fluid port of the back cavity, third road through the Y2 solenoid valve
The hydraulic fluid port of the ante-chamber is connected through the pressure reducing valve.
Further, the ante-chamber is connected with the first overflow valve, and the hydraulic fluid port of the ante-chamber is connected by first overflow valve
Connected tank.
Further, the back cavity is connected with precursor overflow valve, and the hydraulic oil of back cavity is divided into after the precursor overflow valve
Two-way, the first via lead to the hydraulic fluid port of the ante-chamber, and the second tunnel is back to fuel tank through the overflow valve.
Further, it is equipped between the Y1 solenoid valve and ante-chamber and ante-chamber is flowed to by Y1 solenoid valve for controlling hydraulic oil
Check valve.
Further, it is equipped between the Y2 solenoid valve and back cavity and back cavity is flowed to by Y2 solenoid valve for controlling hydraulic oil
Check valve.
Further, it is equipped between the pressure reducing valve and ante-chamber and ante-chamber chamber is flowed to by pressure reducing valve for controlling hydraulic oil
Check valve.
Beneficial effect caused by the present invention includes: counterpunch board buffer hydraulic system in the present invention in broken crusher machine mistake
Cheng Zhong combines the opening and closing situation of each solenoid valve to realize the buffer function and overload protection of counterpunch board, with traditional bullet by oil cylinder
Spring structure is compared, non-maintaining and reliable, also can avoid the material such as iron block when crusher enters big specification material or cannot be crushed
When, it will cause crusher damage.The adjustment of crusher discharge gate size is realized by adjusting the change in location of cylinder piston rod, is protected
Grain shape and the granularity distribution of material after card is broken, can also reduce a large amount of manpowers and adjustment spring position is gone to realize discharge gate size
Adjustment.
Detailed description of the invention
Crusher counterpunch board buffer hydraulic system and crusher attachment structure schematic diagram in Fig. 1 present invention；
The structural schematic diagram of oil cylinder in Fig. 2 present invention；
The structural schematic diagram of hydraulic system in Fig. 3 present invention.
1- fuel tank in figure；2- hydraulic pump；3- intermediate cavity control valve group；4-Y4 solenoid valve；5-Y5 solenoid valve；6-Y13 electromagnetism
Valve；Chamber control valve group before and after 7-；8-Y1 solenoid valve；9-Y2 solenoid valve；10- pressure reducing valve；11- oil cylinder；12- piston rod；13- is close
Switch；14- locating snap ring；15- crosses support plate；16- displacement sensor；17- piston；18- ram control valve group；The first overflow valve of 19-；
20- precursor overflow valve；21- crusher frame；22- counterpunch board；23- rotor；24, ante-chamber, 25, back cavity, 26, intermediate cavity.
Specific embodiment
Further details of explanation is done to the present invention with reference to the accompanying drawings and detailed description, it should be appreciated that
The protection scope of the present invention is not limited by the specific implementation manner.
As shown in Figure 1,22 buffer hydraulic system of one of present invention crusher counterpunch board, including Multiple cavity oil cylinder 11, liquid
Press pump 2 and solenoid valve block, the cylinder barrel of Multiple cavity oil cylinder 11 are fixed in rack 21, and piston rod 12 passes through pin shaft and crusher counterpunch board
22 are connected.Multiple cavity oil cylinder 11 includes ante-chamber 24, intermediate cavity 26 and back cavity 25, intermediate cavity 26 be placed in ante-chamber 24 and back cavity 25 it
Between, back cavity 25 is spaced between back cavity 25 and intermediate cavity 26 by piston 17 close to 11 bottom of oil cylinder, ante-chamber 24 and intermediate cavity 26 it
Between be spaced by locating snap ring 14, back cavity 25 passes through B by X hydraulic fluid port disengaging oil, ante-chamber 24 by A hydraulic fluid port disengaging oil, intermediate cavity 26
Hydraulic fluid port disengaging oil.
The system further includes the displacement sensor 16 for detecting 17 position of piston, and displacement sensor 16 is fixed on oil cylinder 11
Bottom, oil cylinder 11 side wall setting for before and after start the work of 25 control valve group 7 of chamber close to switch 13.It is crushed in order to prevent
Entering excessive material in machine, support plate 15 was arranged in 25 oil cylinder 11 of back cavity, when there is super bulk materials to enter feed inlet, piston rod
12 is mobile to back cavity 25, and 25 oil pressure of back cavity is caused to increase, and when oil pressure was more than 15 born pressure of support plate, it is disconnected to cross support plate 15
It splits, hydraulic oil is flowed out by the notch for crossing support plate 15.
As shown in Figures 2 and 3, intermediate cavity 26 passes in and out oil and is controlled by 26 control valve group 3 of intermediate cavity, 26 control valve of intermediate cavity
Group 3 includes Y4 solenoid valve 4, Y5 solenoid valve 5 and Y13 solenoid valve 66, and fuel tank 1 is by hydraulic pump 2 and check valve and Y4 solenoid valve 4
Entrance connection, the outlet of Y4 solenoid valve 4 connect the hydraulic fluid port of intermediate cavity 26 through Y5 solenoid valve 5, and the outlet of Y4 solenoid valve 4 is through Y13 electricity
66 oil return of magnet valve is to fuel tank 1.
Back cavity 25 and ante-chamber 24 pass in and out oil and are controlled by 25 control valve group 7 of front and back chamber, and chamber 25 control valve group 7 in front and back includes Y1
Solenoid valve 8, Y2 solenoid valve 9 and pressure reducing valve 10, the oil circuit into 25 control valve group 7 of front and back chamber are divided into three tunnels, and the first via is through Y1 electricity
Magnet valve 8 connects the hydraulic fluid port of ante-chamber 24, and the second tunnel connects the hydraulic fluid port of back cavity 25 through Y2 solenoid valve 9, and third road is connected through pressure reducing valve 10
The hydraulic fluid port of ante-chamber 24.It is equipped between Y1 solenoid valve 8 and ante-chamber 24 and ante-chamber 24 is flowed to by Y1 solenoid valve 8 for controlling hydraulic oil
Check valve.It is equipped between Y2 solenoid valve 9 and back cavity 25 and the unidirectional of back cavity 25 is flowed to by Y2 solenoid valve 9 for controlling hydraulic oil
Valve.The check valve that ante-chamber 24 is flowed to for controlling hydraulic oil by pressure reducing valve 10 is equipped between pressure reducing valve 10 and ante-chamber 24.
Oil cylinder is connected with ram control valve group 18, and ram control valve group 18 includes precursor overflow valve 20 and the first overflow valve
19, ante-chamber 24 connects the first overflow valve 19, and the hydraulic fluid port of ante-chamber 24 connects fuel tank 1 by the first overflow valve 19.Back cavity 25 is connected with
Precursor overflow valve 20, the hydraulic oil of back cavity 25 are divided into two-way after precursor overflow valve 20, and the first via leads to the hydraulic fluid port of ante-chamber 24, the
Two tunnels are back to fuel tank 1 through overflow valve.
Hydraulic system is divided into 3 kinds of operating conditions: dead-center position and aperture setting, normal work and overload shutdown in the present invention
The step of dead-center position and aperture are arranged include:
1, Y4, Y13 are obtained electric, 26 oil inlet of intermediate cavity, and back cavity 25 is closed, then piston rod 12 is fixed, and locating snap ring 14 is forward
24 direction of chamber is mobile, until triggering close to switch 13, starts next step；
2, Y2, Y5, Y13 are obtained electric, and ante-chamber 24 is closed, and 25 oil inlet of back cavity, intermediate cavity 26 leads to fuel tank 1, then locating snap ring 14 is motionless,
Piston 17 is mobile to 24 direction of ante-chamber, and piston rod 12 is pushed outwardly, up on the rotor 23 of the touching crusher of counterpunch board 22, rack
Acceleration transducer for detecting crusher Vibration Condition is installed, triggering adds after the rotor 23 of the touching crusher of counterpunch board 22
Velocity sensor, acceleration transducer transmit signals to controller, and controller records the position of piston rod by displacement sensor
It is set to location A；
3, Y1 is obtained electric, 24 oil inlet of ante-chamber, and back cavity 25 leads to fuel tank 1, and intermediate cavity 26 is closed, then locating snap ring 14 and piston rod 12 are made
Be that an entirety is mobile to 25 direction of back cavity, displacement sensor 16 detects that piston rod 12 moves safe distance, i.e., bar with
Counterpunch board does not contact, and between bar and counterpunch board after distance about 5mm, the equal power loss of Y1, Y2, piston 17 is stood, this position is B
It sets, is denoted as dead-center position；
4, input setting value on the control panel, the setting value be work normally when 17 relative zero position of piston away from
From crusher feed-inlet opening size when the size of setting value directly influences normal work.Y2 obtains electric, and ante-chamber 24 leads to fuel tank 1,
25 oil inlet of back cavity, intermediate cavity 26 are closed, then locating snap ring 14 and piston rod 12 are mobile to 24 direction of ante-chamber as a whole, until
It is moved to setting value, the equal power loss of Y1, Y2, Y4, Y5, Y13.
It works normally
When normal work, ante-chamber 24 continues oil inlet and overflow to maintain the pressure of 40bar, 25 hydraulic fluid port of back cavity and intermediate cavity 26
Hydraulic fluid port closing；
1. buffering: when into aniseed, piston 17 is moved back to the right, after 25 pressure of back cavity rises to 105bar, the hydraulic oil spill of back cavity 25
It flow to ante-chamber 24 and through 24 overflow valve oil return box 1 of ante-chamber, realization buffering.
2. resetting: actual value is sent to controller by displacement sensor 16, and controller compares actual value and setting value
Compared with there are differences for the two, then controller obtains electromagnet Y2 electric.Y2 obtains electric so that 25 oil inlet of back cavity, 24 oil return of ante-chamber, piston 17
It moves downward.After actual value is consistent with setting value, controller then makes electromagnet Y2 power loss.
Overload shutdown
When overload, crosses support plate 15 and rupture, 17 right side of piston is moved back.It is electric that controller obtains electromagnet Y2.Y2 obtains electric so that back cavity 25
Oil inlet, but hydraulic oil stream is discharged by 15 notch of support plate, therefore the movement cannot reduce the difference between actual value and setting value, when
After controller detects that the difference duration is more than 20s, batcher and pre-sifted extension set revolving speed will be reduced, after being continued above 30s
Execute halt command.
Following table is the working condition of each solenoid valve during zero point confirmation, and 1 expression solenoid valve obtains electric, 0 expression solenoid valve mistake
Electricity.
| Y4 | Y5 | Y13 | State |
| 0 | 0 | 0 | Intermediate cavity closing |
| 0 | 1 | 1 | Intermediate cavity pressure release |
| 1 | 0 | 1 | Intermediate cavity oil inlet |
The working condition of solenoid valve in lower 22 aperture setting up procedure of counterpunch board:
| Y1 | Y2 | State |
| 0 | 0 | Small chamber is through pressure reducing valve oil inlet, big chamber closing |
| 0 | 1 | Big chamber oil inlet, small chamber pressure release |
| 1 | 0 | Small chamber oil inlet, big chamber pressure release |
Claims (8)
1. a kind of crusher counterpunch board buffer hydraulic system, it is characterised in that: described slow including cushion cylinder and displacement sensor
Rushing oil cylinder includes back cavity, ante-chamber and intermediate cavity, and the intermediate cavity is placed between the ante-chamber and the back cavity, the back cavity and institute
Intermediate cavity is stated by piston space every by stop central spacer between the intermediate cavity and the ante-chamber, the locating snap ring is set to
On piston rod, the piston rod end of the cushion cylinder connects crusher counterpunch board；After the back cavity side wall is equipped with for preventing
The excessive support plate excessively of chamber oil pressure；Institute's displacement sensors are used to detect the displacement of the piston.
2. crusher counterpunch board buffer hydraulic system according to claim 1, it is characterised in that: the intermediate cavity disengaging oil
It is controlled by intermediate cavity control valve group, the intermediate cavity control valve group includes Y4 solenoid valve, Y5 solenoid valve and Y13 solenoid valve, oil
Case is connect by hydraulic pump and check valve with the entrance of the Y4 solenoid valve, and the outlet of the Y4 solenoid valve is connected through Y5 solenoid valve
The hydraulic fluid port of the intermediate cavity, the outlet of the Y4 solenoid valve is through Y13 electromagnetic valve oil return to fuel tank.
3. crusher counterpunch board buffer hydraulic system according to claim 1, it is characterised in that: the back cavity and ante-chamber into
Fuel-displaced to be controlled by front and back chamber control valve group, the front and back chamber control valve group includes Y1 solenoid valve, Y2 solenoid valve and pressure reducing valve, into
The oil circuit for entering the front and back chamber control valve group is divided into three tunnels, and the first via connects the hydraulic fluid port of the ante-chamber through the Y1 solenoid valve, the
Two tunnels connect the hydraulic fluid port of the back cavity through the Y2 solenoid valve, and third road connects the hydraulic fluid port of the ante-chamber through the pressure reducing valve.
4. crusher counterpunch board buffer hydraulic system according to claim 1, it is characterised in that: the ante-chamber is connected with
The hydraulic fluid port of one overflow valve, the ante-chamber connects fuel tank by first overflow valve.
5. crusher counterpunch board buffer hydraulic system according to claim 4, it is characterised in that: the back cavity is connected with elder generation
Lead overflow valve, the hydraulic oil of back cavity is divided into two-way after the precursor overflow valve, and the first via leads to the hydraulic fluid port of the ante-chamber, and second
Road is back to fuel tank through the overflow valve.
6. crusher counterpunch board buffer hydraulic system according to claim 3, it is characterised in that: the Y1 solenoid valve with
The check valve that ante-chamber is flowed to for controlling hydraulic oil by Y1 solenoid valve is equipped between ante-chamber.
7. crusher counterpunch board buffer hydraulic system according to claim 3, it is characterised in that: the Y2 solenoid valve with
The check valve that back cavity is flowed to for controlling hydraulic oil by Y2 solenoid valve is equipped between back cavity.
8. crusher counterpunch board buffer hydraulic system according to claim 3, it is characterised in that: in the pressure reducing valve with before
The check valve that ante-chamber is flowed to for controlling hydraulic oil by pressure reducing valve is equipped between chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821436118.9U CN209100551U (en) | 2018-09-04 | 2018-09-04 | A kind of crusher counterpunch board buffer hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821436118.9U CN209100551U (en) | 2018-09-04 | 2018-09-04 | A kind of crusher counterpunch board buffer hydraulic system |
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| CN209100551U true CN209100551U (en) | 2019-07-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953476A (en) * | 2018-09-04 | 2018-12-07 | 徐州徐工矿山机械有限公司 | A kind of crusher counterpunch board buffer hydraulic system and its control method |
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2018
- 2018-09-04 CN CN201821436118.9U patent/CN209100551U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953476A (en) * | 2018-09-04 | 2018-12-07 | 徐州徐工矿山机械有限公司 | A kind of crusher counterpunch board buffer hydraulic system and its control method |
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