CN202237937U - Batching device and asphalt stirring equipment with same - Google Patents
Batching device and asphalt stirring equipment with same Download PDFInfo
- Publication number
- CN202237937U CN202237937U CN2011202708308U CN201120270830U CN202237937U CN 202237937 U CN202237937 U CN 202237937U CN 2011202708308 U CN2011202708308 U CN 2011202708308U CN 201120270830 U CN201120270830 U CN 201120270830U CN 202237937 U CN202237937 U CN 202237937U
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- proportioner
- control valve
- piston rod
- control
- piston cylinder
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- 239000010426 asphalt Substances 0.000 title claims abstract description 18
- 238000003756 stirring Methods 0.000 title description 2
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 230000006698 induction Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 abstract description 37
- 238000000034 method Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
The utility model discloses a dosing unit, this dosing unit include piston cylinder (1) and control valve (2), piston rod (11) of piston cylinder (1) are connected with bin gate (31) of feed bin (3), control valve (2) with piston cylinder (1) are connected, wherein, control valve (2) are the three directional control valves of O type, two working ports (A, B) of this three directional control valves of O type respectively with piston cylinder (1) have the pole chamber and do not have pole chamber intercommunication. Also discloses asphalt mixing equipment, wherein, the feed bin of the asphalt mixing equipment is provided with the batching device. Through the technical scheme, the movement of the piston rod is controlled by adopting the single O-shaped three-position reversing valve, so that the opening degree of the bin gate can be controlled by only controlling the single valve, and the batching device is simple in structure and simple in control mode.
Description
Technical field
The utility model relates to a kind of proportioner, also relates to the asphalt mixing plant with this proportioner.
Background technology
Asphalt mixing plant is also referred to as asphalt mixing plant or bituminous mixing plant, is the key equipment of asphalt pavement construction, is mainly used in measuring and stir into asphalt after the heating of materials such as sandstone material, pitch.Sandstone material (being called aggregate again) generally is made up of the material of several kinds of different sizes, the corresponding feed bin of the material of every kind of specification.During work, the door of opening each feed bin as required to be supplying corresponding material, and the material of supply is measured, so that the actual inlet amount of control.And each door possibly open with different apertures, thereby carries out discharging with different discharging speeds, so that as required the material of supply is slightly measured or smart metering.Usually adopt piston cylinder to open the door of feed bin.The piston rod of piston cylinder is connected with the door of feed bin, and control valve is connected with piston cylinder so that the motion of control piston bar, thereby can control the aperture of door through the stroke of control piston bar, so that make door close, open fully or partially open.
Control valve in the existing proportioner usually adopts the match motion of incompatible control piston bar of a plurality of valves.Be to be exactly the motion that cooperatively interacts the control piston bar through two two position-5 way valves in the utility model patent of CN2822934Y for example at notification number.Owing to need a plurality of valves to cooperatively interact, therefore need control respectively, thereby can cause proportioner complex structure and control mode more loaded down with trivial details a plurality of valves.
The utility model content
The purpose of the utility model provides a kind of proportioner, and the simple in structure and control mode of this proportioner is more succinct.
To achieve these goals; The utility model provides a kind of proportioner, and this proportioner comprises piston cylinder and control valve, and the piston rod of said piston cylinder is connected with the door of feed bin; Said control valve is connected with said piston cylinder; Wherein, said control valve is an O type three position directional valve, and two working holes of this O type three position directional valve are communicated with the rod chamber and the rodless cavity of said piston cylinder respectively.
Preferably, said control valve is three position four-way directional control valve or 3 position-5 way valve.
Preferably, said control valve is a solenoid directional control valve.
Preferably, this proportioner also comprises the controller that is connected with said control valve.
Preferably, this proportioner also comprises the travel switch that is arranged on the said piston cylinder, and the trip switch is connected with said controller.
Preferably, said travel switch is a plurality of.
Preferably, one or more in maximum opening, minimum aperture and the middle aperture of the corresponding said door in the position of said travel switch.
Preferably, aperture is a plurality of and aperture is different each other in the middle of said.
Preferably, said travel switch comprises the magnetic induction switch on magnet ring that is arranged on the said piston rod and the cylinder body that is arranged on said piston cylinder.
Preferably, on the rod chamber of the working hole of said control valve and said piston cylinder and the pipeline between the rodless cavity, also be provided with one-way throttle valve.
Preferably, said piston rod is connected with said door through rocking arm.
On the other hand, the utility model also provides a kind of asphalt mixing plant, and wherein, the feed bin of this asphalt mixing plant is provided with proportioner as indicated above.
Through technique scheme, the motion of adopting single O type three position directional valve to come the control piston bar, thus only need control the aperture that single valve just can be controlled door, so this proportioner is simple in structure and control mode is more succinct.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation according to the proportioner of a kind of embodiment of the utility model;
Fig. 2 is the principle schematic according to the proportioner of a kind of embodiment of the utility model.
Description of reference numerals
1 piston cylinder; 12 cylinder bodies;
11 piston rods; 3 feed bins;
31 doors; 2 control valves;
A, the B working hole; 4 travel switches;
41 magnet rings; 42 magnetic induction switches;
5 one-way throttle valves; 6 rocking arms.
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
The piston rod stroke of piston cylinder can be controlled through travel switch.For example can on the relevant position of cylinder body, magnetic induction switch be set through magnet ring is set on piston rod, when magnetic induction switch detected magnet ring, the expression piston rod had been moved to the relevant position, thereby realized the control of piston rod stroke.Because usually there is bigger error in travel switch, the induction range of magnetic induction switch one section zone but not therefore a point causes the control of piston rod stroke not accurate enough normally for example.
A kind of piston rod stroke control method of piston cylinder is disclosed according to a kind of embodiment of the utility model, wherein, according to the movement velocity of preset said piston rod and the target stroke that run duration is come the control piston bar.
Because according to the movement velocity and the target stroke that run duration is come the control piston bar of preset said piston rod, so there is not the detection error of travel switch, thus the stroke of control piston bar more accurately.
Said target stroke can be various strokes, for example can be in range, middle of stroke and the minimum stroke one or more.Said middle of stroke is meant the arbitrary distance of run between range and the minimum stroke, rather than refers in particular to the mean value of range and minimum stroke.Said target stroke can comprise the different a plurality of middles of stroke of stroke each other.
Said target stroke can be one or more, when having a plurality of target stroke, can all control according to the movement velocity and the run duration of preset said piston rod by the target complete stroke; Can certainly only a part of target stroke control according to the movement velocity and the run duration of preset said piston rod, remaining target stroke can be controlled through other modes, for example can control through travel switch.For example in practical application; For other control purposes; Possibly guarantee that piston rod reaches its range or minimum stroke; Therefore need travel switch be set at the range and/or the minimum stroke place of piston rod usually, can come the control piston bar to move to range and/or minimum stroke this moment through this travel switch that has been provided with, and need not to control through the movement velocity and the run duration of preset piston rod extraly again.
On the other hand; As depicted in figs. 1 and 2, the invention also discloses a kind of control method of proportioner, said proportioner comprises piston cylinder 1; The piston rod 11 of said piston cylinder 1 is connected with the door 31 of feed bin 3; Said control method comprises through the target stroke of controlling said piston rod 11 makes said door 31 open to corresponding target aperture, wherein, controls the target stroke of said piston rod 11 according to the piston rod stroke control method of piston cylinder mentioned above.
This control method can also comprise the motion of controlling said piston rod 11 through the control valve 2 that is connected with said piston rod 11, for example the direction of motion of control piston bar 11, make said piston rod 11 stop motions etc.Said control valve can adopt the valve of various appropriate formats.Control valve in the existing proportioner usually adopts the match motion of incompatible control piston bar of a plurality of valves.Be to be exactly the motion that cooperatively interacts the control piston bar through two two position-5 way valves in the utility model patent of CN2822934Y for example at notification number.Owing to need a plurality of valves to cooperatively interact, therefore need control respectively, thereby can cause proportioner complex structure and control mode more loaded down with trivial details a plurality of valves.Therefore, preferably, as shown in Figure 2 in the utility model, said control valve 2 is an O type three position directional valve, and two working hole A of this O type three position directional valve, B are communicated with the rod chamber and the rodless cavity of said piston cylinder 1 respectively.Thereby through single valve just can control piston bar 11 motion.More specifically, this control valve 2 can be three position four-way directional control valve or 3 position-5 way valve.More specifically, this control valve 2 can be 3-position 4-way solenoid directional control valve or 3 position-5 way solenoid directional control valve, thereby can control control valve 2 through the signal of telecommunication.As shown in Figure 2, said control valve 2 is the 3 position-5 way solenoid directional control valve.When this control valve 2 was positioned at position, a left side, piston rod 11 moved right, and made the aperture of door 31 increase; When control valve 2 was positioned at right position, piston rod 11 made the aperture of door 31 reduce to left movement; When control valve 2 was positioned at meta, piston rod 11 stop motions made door 31 remain on current aperture.
As indicated above, when having a plurality of target stroke, can all control by the target complete stroke according to the movement velocity and the run duration of preset said piston rod 11; Can certainly only a part of target stroke control according to the movement velocity and the run duration of preset said piston rod 11, remaining target stroke can be controlled through other modes, for example can control through travel switch 4.For example; As an embodiment; Said target aperture comprises maximum opening, minimum aperture and middle aperture; The said target stroke corresponding with said minimum aperture is by travel switch 4 (for example being arranged in the travel switch 4 of position shown in a of Fig. 2) control, and the said target stroke corresponding with said maximum opening and middle aperture controlled according to the movement velocity and the run duration of the said piston rod of presetting.As another embodiment; Said target aperture comprises maximum opening, minimum aperture and middle aperture; The said target stroke corresponding with said minimum aperture and maximum opening controlled according to the movement velocity and the run duration of preset said piston rod with the corresponding said target stroke of said middle aperture by travel switch 4 (for example being arranged in the travel switch 4 of position shown in Fig. 2 a and the c) control.As going back another embodiment; Said target aperture comprises the different a plurality of middle aperture of aperture each other; The said target stroke corresponding with at least one said middle aperture controlled according to the movement velocity and the run duration of preset said piston rod with the corresponding said target stroke of remaining said middle aperture by travel switch 4 (for example being arranged in the travel switch 4 of position shown in Fig. 2 d) control.
On the other hand; As depicted in figs. 1 and 2, the utility model also provides a kind of proportioner, and this proportioner comprises piston cylinder 1 and controller; The piston rod 11 of said piston cylinder 1 is connected with the door 31 of feed bin 3; Said controller is used for making said door 31 open to corresponding target aperture through the target stroke of controlling said piston rod 11 that wherein, said controller is used for according to the movement velocity of preset said piston rod 11 and the said target stroke that run duration is come control piston bar 11.
Controller can adopt with preceding text and be directed against the piston rod formation control method of piston rod and the illustrated similar mode of control method of proportioner, and concrete target stroke, target aperture are set; Likewise; Controller also can adopt separately according to the movement velocity of preset said piston rod 11 and the said target stroke that run duration is come control piston bar 11; Also can adopt travel switch 4 to control said target stroke separately, also can adopt the combination of this dual mode to control said target stroke; This is repeated no more.
Said travel switch 4 can adopt the travel switch of various suitable types; As a kind of concrete embodiment; As shown in Figure 2, said travel switch 4 can comprise the magnetic induction switch 42 on magnet ring 41 that is arranged on the said piston rod 11 and the cylinder body 12 that is arranged on said piston cylinder 1.When magnetic induction switch 42 detected magnet ring 41, expression piston rod 11 had been moved to the relevant position, thereby realized the control of piston rod 11 strokes.
Similarly, the control device of said proportioner can also be used for controlling through the control valve 2 that is connected with said piston rod 11 motion of said piston rod 11.Similar about the explanation to the control method of proportioner in the setting of this control valve 2 and the preceding text, repeat no more at this.
Preferably, as shown in Figure 2, on the rod chamber of working hole A, B and the said piston cylinder 1 of said control valve 2 and the pipeline between the rodless cavity, also be provided with one-way throttle valve 5.Can realize the exhaust throttle of piston cylinder 1 through this one-way throttle valve 5, thereby can balanced load fluctuate, make that the operation of piston rod 11 is more steady.And the movement velocity that can come regulating piston bar 11 through the aperture of regulating one-way throttle valve 5 makes the motion positions of piston rod 11 more accurate.
Said piston rod 11 can adopt various suitable structures to be connected with door 31, and is for example as shown in Figure 1, and piston rod 11 is connected with door 31 through rocking arm 6.Door 31 then can be rotatably connected on the feed bin 3 through bearing, rotates around feed bin 3 thereby the motion of piston rod 11 can drive door 31, thereby makes door 31 be positioned at different apertures.And the concrete position of door 31, rocking arm 6 and piston cylinder 1 and concrete motion mode can be decided according to actual conditions; For example as shown in Figure 1, stretch out in the process at piston rod 11, rocking arm 6 turns clockwise; Thereby driving door 31 opens; In piston rod 11 withdrawal processes, rocking arm 6 is rotated counterclockwise, and closes thereby drive door 31.
Piston cylinder 1 mentioned above can be the piston cylinder of various suitable types, for example cylinder, hydraulic cylinder etc.
The utility model also provides a kind of asphalt mixing plant, and wherein, the feed bin of this asphalt mixing plant is provided with proportioner as indicated above.
Several concrete embodiment to asphalt mixing plant explains the blending process that it is concrete below.
A among Fig. 2, c position are represented the minimum stroke and the range of piston rod 11 respectively; Corresponding with the minimum aperture and the maximum opening of door 31 respectively; B among Fig. 2, d position are represented two different middles of stroke of piston rod 11 respectively; Corresponding with two of door 31 different middle apertures respectively, this b, d position can be regulated according to actual needs and at random.
Embodiment 1
Be provided with corresponding travel switch 4, thereby control the different opening of door 31 through travel switch 4 fully in a, b, three positions of c.At first on the control system host computer of asphalt mixing plant, configure dispensing gross mass and " smart metering " quality that this feed bin needs at every turn.Set the position of switch b then according to the needed aggregate batching amount of corresponding feed bin.When controlling automated system operation to the aggregate batching process, system sends instruction, makes control valve 2 be positioned at right position, and piston rod 11 stretches out, and opens door 31; When magnet ring 41 moved to the c position, the control system sent instruction, made control valve 2 be positioned at meta, piston rod 11 stop motions, and door 31 is positioned on the maximum opening, carries out the quick metering (thick metering) of aggregate this moment; When needing " the smart metering " quality when variable reaches predetermined value, the control system sends instruction once more, makes control valve 2 be positioned at position, a left side, piston rod 11 withdrawals; When piston rod 11 moved to the b position, the control system sent instruction, made control valve 2 be positioned at meta, piston rod 11 stop motions, and door 31 is positioned on the middle aperture of setting, and can carry out the metering of aggregate this moment lentamente, makes the metering of aggregate more accurate.After variable reached the completion of predetermined value aggregate batching, the control system sent instruction, made control valve 2 be positioned at position, a left side; Piston rod 11 is got back to initial position a; Door 31 is closed, and the magnetic induction switch 42 of a position is given the control system feedback signal, accomplishes the blending process of this feed bin.
Embodiment 2
Be provided with corresponding travel switch 4 in a position.Control the piston rod stroke of a position through travel switch 4, and according to the movement velocity of preset piston rod 11 and piston rod stroke that run duration is controlled b, d position then.When piston rod 11 is positioned at the b position, aggregate is slightly measured, when piston rod 11 is positioned at the d position, aggregate is carried out the essence metering.Detailed process is following: at first on the control system host computer of asphalt mixing plant, configure dispensing gross mass and " smart metering " quality that this feed bin needs at every turn.Pre-set the speed of service and the running time that piston rod 11 moves to b, d position according to the needed aggregate batching amount of corresponding feed bin then.When controlling automated system operation to the aggregate batching process, system sends instruction, makes control valve 2 be positioned at right position, and piston rod 11 stretches out, and opens door 31; When after piston rod 11 is with preset movement velocity v1 continuous service preset time t 1, arriving the b position; The control system sends instruction, makes control valve 2 be positioned at meta, piston rod 11 stop motions; Door 31 is positioned on the corresponding middle aperture, carries out the quick metering (thick metering) of aggregate this moment; When needing " the smart metering " quality when variable reaches predetermined value, the control system sends instruction once more, makes control valve 2 be positioned at position, a left side, piston rod 11 withdrawals; When after piston rod 11 is with preset movement velocity v2 continuous service preset time t 2, arriving the d position; The control system sends instruction; Make control valve 2 be positioned at meta, piston rod 11 stop motions, door 31 is positioned on corresponding another middle aperture; Can carry out the metering of aggregate this moment lentamente, makes the metering of aggregate more accurate.After variable reached the completion of predetermined value aggregate batching, the control system sent instruction, made control valve 2 be positioned at position, a left side; Piston rod 11 is got back to initial position a; Door 31 is closed, and the magnetic induction switch 42 of a position is given the control system feedback signal, accomplishes the blending process of this feed bin.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (12)
1. proportioner; This proportioner comprises piston cylinder (1) and control valve (2), and the piston rod (11) of said piston cylinder (1) is connected with the door (31) of feed bin (3), and said control valve (2) is connected with said piston cylinder (1); It is characterized in that; Said control valve (2) is an O type three position directional valve, and (A B) is communicated with the rod chamber and the rodless cavity of said piston cylinder (1) respectively two working holes of this O type three position directional valve.
2. proportioner according to claim 1 is characterized in that, said control valve (2) is three position four-way directional control valve or 3 position-5 way valve.
3. proportioner according to claim 1 and 2 is characterized in that, said control valve (2) is a solenoid directional control valve.
4. proportioner according to claim 1 is characterized in that, this proportioner also comprises the controller that is connected with said control valve (2).
5. proportioner according to claim 4 is characterized in that, this proportioner also comprises the travel switch (4) that is arranged on the said piston cylinder (1), and the trip switch (1) is connected with said controller.
6. proportioner according to claim 5 is characterized in that, said travel switch (4) is a plurality of.
7. proportioner according to claim 5 is characterized in that, one or more in maximum opening, minimum aperture and the middle aperture of the corresponding said door in the position of said travel switch (4).
8. proportioner according to claim 7 is characterized in that, said middle aperture is a plurality of and aperture is different each other.
9. according to any described proportioner among the claim 5-8, it is characterized in that said travel switch (4) comprises the magnetic induction switch (42) on magnet ring (41) that is arranged on the said piston rod (11) and the cylinder body (12) that is arranged on said piston cylinder (1).
10. proportioner according to claim 1 is characterized in that, the working hole of said control valve (2) (A, B) and also be provided with one-way throttle valve (5) on the rod chamber of said piston cylinder (1) and the pipeline between the rodless cavity.
11. proportioner according to claim 1 is characterized in that, said piston rod (11) is connected with said door (31) through rocking arm (6).
12. an asphalt mixing plant is characterized in that, the feed bin of this asphalt mixing plant is provided with according to any described proportioner among the claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202708308U CN202237937U (en) | 2011-07-28 | 2011-07-28 | Batching device and asphalt stirring equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202708308U CN202237937U (en) | 2011-07-28 | 2011-07-28 | Batching device and asphalt stirring equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237937U true CN202237937U (en) | 2012-05-30 |
Family
ID=46099242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202708308U Expired - Fee Related CN202237937U (en) | 2011-07-28 | 2011-07-28 | Batching device and asphalt stirring equipment with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202237937U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923413A (en) * | 2016-05-31 | 2016-09-07 | 湖州华尔泰服饰制造有限公司 | Raw material proportioning barrel device |
| CN108745014A (en) * | 2018-06-15 | 2018-11-06 | 首都医科大学 | Pneumatic dual-pushing type emulsifier |
| CN114368069A (en) * | 2022-03-02 | 2022-04-19 | 山东晨歌电子技术有限公司 | Opening control system for unloading opening and closing door of mixing station |
-
2011
- 2011-07-28 CN CN2011202708308U patent/CN202237937U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923413A (en) * | 2016-05-31 | 2016-09-07 | 湖州华尔泰服饰制造有限公司 | Raw material proportioning barrel device |
| CN108745014A (en) * | 2018-06-15 | 2018-11-06 | 首都医科大学 | Pneumatic dual-pushing type emulsifier |
| CN108745014B (en) * | 2018-06-15 | 2024-06-07 | 首都医科大学 | Pneumatic double-push type emulsifying device |
| CN114368069A (en) * | 2022-03-02 | 2022-04-19 | 山东晨歌电子技术有限公司 | Opening control system for unloading opening and closing door of mixing station |
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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: 20120530 Termination date: 20150728 |
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| EXPY | Termination of patent right or utility model |