CN102601867B - Unloading valve device and concrete agitating equipment provided with same - Google Patents
Unloading valve device and concrete agitating equipment provided with same Download PDFInfo
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- CN102601867B CN102601867B CN201110377816.2A CN201110377816A CN102601867B CN 102601867 B CN102601867 B CN 102601867B CN 201110377816 A CN201110377816 A CN 201110377816A CN 102601867 B CN102601867 B CN 102601867B
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- plate
- discharge gate
- gate device
- packing ring
- deflector chute
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Abstract
The invention provides an unloading valve device and concrete agitating equipment provided with the same. The unloading valve device is used for connecting an aggregate hopper and an agitating main machine and comprises a hopper valve assembly and a material guide groove assembly, wherein the hopper valve assembly is movably connected with the material guide groove assembly. The unloading valve device further comprises sealing elastic gaskets for sealing the side face of the hopper valve assembly and the side face of the material guide groove assembly; and an elastic deformation amount is reserved for each sealing elastic gasket. The unloading valve device and the concrete agitating equipment provided with the same have the advantages of preventing pull cracks, preventing water from permeating and dust from leaking outside, and improving the environment-friendly performance.
Description
Technical field
The present invention relates to engineering machinery field, be specifically related to a kind of discharge gate device and there is its concrete batch plant.
Background technology
Along with the fast development in concrete mixing plant (building), client more and more pursues the quality of product, pursues more superior environmental-protecting performance simultaneously.Concrete mixing plant is normally worked while producing concrete, need to throw gather materials (sand, stone, water and powder etc.) in stirring host, when main frame starts ready-mixed concrete, aggregate (sand, stone) is first temporarily stored in aggregate and treats in hopper, while starting to deliver aggregate in main frame, aggregate, via the discharge gate device that is arranged on aggregate and treats feed hopper bottom, once valve door-plate is opened, is stored in the aggregate for the treatment of in hopper and drops into stirring host.The side of existing discharge gate device generally all uses 4 blocks of straight steel plates to install and seal, because mixing plant steel construction main building framework and aggregate are treated hopper, in the time of storage aggregate and input aggregate, the deflection producing is different, the coaming plate that is arranged on discharge gate device side bears the alternate stress that draws, presses, after repeatedly moving, some coaming plate cracks, and even serious is cut off.Owing to generally all can containing a certain amount of water in aggregate sand and stone, if when mixing plant moved on rainy day, in sand, stone, water content will be larger, when discharge gate device side, coaming plate has crackle, or coaming plate is when gapped, water will infiltrate from the side, cause discharge gate device to occur drainage.On the other hand, main frame tops is provided with water distributor, is provided with several shower nozzles on water distributor, and the water of shower nozzle ejection is dispersion shape, the water of part is splashed on discharge gate device side plate, when discharge gate device side, coaming plate has crackle, or coaming plate is when gapped, and water will infiltrate from the side, flowing directly to main frame covers, owing to all having added liquid additive in concrete aggregate, and band be corrosive, thereby polluted environment.
Summary of the invention
In order to overcome above-mentioned defect and the deficiency of prior art, the first object of the present invention is to provide a kind of discharge gate device that is difficult for drawing crack, be used for connecting aggregate and treat hopper and stirring host, discharge gate device comprises: bucket valve member and deflector chute assembly, bucket valve member is flexibly connected with deflector chute assembly, this discharge gate device also comprises: for the sealed elastic packing ring of the side of seal funnel valve member and the side of deflector chute assembly, sealed elastic packing ring is reserved elastic deformation amount; Discharge gate device also comprises: be arranged on bucket valve member side and sealed elastic packing ring between side plate, the bottom of side plate bends inwards, deflector chute assembly comprises: deflector chute backing plate, deflector chute, coaming plate; Deflector chute backing plate is fixedly mounted in deflector chute top-side, and is flexibly connected with bucket valve member; Coaming plate is fixedly mounted on the top of deflector chute backing plate; The height of coaming plate end face is higher than the height of side plate bottom surface.
Further, sealed elastic packing ring is by arranging the reserved elastic deformation amount of buckle fold structure at mid portion.
Further, the buckle fold structure of sealed elastic packing ring mid portion is " V " shape, arc, waveform or S shape structure.
Further, discharge gate device also comprises: be arranged on the plate that is tightly connected in sealed elastic packing ring outside, the size of the size of the plate that is tightly connected and sealed elastic packing ring adapts.
Further, the plate that is tightly connected is straight steel plate or the steel plate for reserved elastic deformation amount.
Further, be tightly connected plate by the reserved elastic deformation amount of bending structure is set at mid portion.
Further, side plate is arranged on the side of the valve body backing plate in bucket valve member; The height of side plate end face is higher than the height of valve body backing plate end face.
Further, the bottom of side plate all separates setting with bucket valve member and coaming plate.
Further, sealed elastic packing ring is caulking gum packing ring.
In order to overcome above-mentioned defect and the deficiency of prior art, the second object of the present invention is to provide a kind of concrete batch plant, comprises above-mentioned discharge gate device.
Discharge gate device embodiment of the present invention, by the reserved elastic deformation amount of sealed elastic packing ring, can prevent drawing crack, stops water infiltration, and dust leaks, and improves environmental-protecting performance.
Brief description of the drawings
Fig. 1 is the structural representation of concrete batch plant embodiment of the present invention;
Fig. 2 is the first view of discharge gate device the first embodiment of the present invention
Fig. 3 is the second view of discharge gate device the first embodiment of the present invention;
Fig. 4 is the structural representation of discharge gate device the second embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, in concrete batch plant embodiment of the present invention, discharge gate device 100 is treated hopper 300 and stirring host 200 for connecting aggregate, and when concrete operations, it can be arranged on aggregate and treat on the ring flange of hopper 300 bottoms; In the time that discharge gate device 100 is closed, aggregate treats that hopper 300 can play the effect of temporary aggregate; In the time that discharge gate device 100 is opened, aggregate is thrown in into stirring host 200, and stirring host 200 stirs aggregate production and goes out concrete.
As shown in Figures 2 and 3, the first embodiment of this discharge gate device 100 can comprise: bucket valve member, deflector chute assembly, sealed elastic packing ring 16; Bucket valve member is flexibly connected with deflector chute assembly, for convenience detach and maintenance; Sealed elastic packing ring 16 is for the side of seal funnel valve member and the side of deflector chute assembly, and sealed elastic packing ring 16 is reserved elastic deformation amount.When concrete operations, sealed elastic packing ring 16 can be by arranging buckle fold structure to reserve elastic deformation amount at mid portion, certainly, buckle fold structure can also be set at other positions, or ensure reserved elastic deformation amount from the selection of self elastomeric material, as sealed elastic packing ring 16 is made up of particulate metal material (as memorial alloy) with large elastic deformation amount or is made up of the material such as rubber with large elastic deformation amount; The buckle fold structure of sealing elastic washer 16 mid portions is " V " shape, arc, semicircle, waveform or S shape structure; Sealed elastic packing ring 16 can be made with various elastomeric materials, as while utilizing elastomeric material, sealing elastic washer 16 is caulking gum packing ring.
Wherein, basically identical with prior art, this bucket valve member comprises: valve body 1, adpting flange 2, mount pad 3, cylinder 4, door-plate 5, extension bar 6, bearing 7, rotating shaft 8, crank 9, valve body backing plate 10 and the plate 12 that is tightly connected.Adpting flange 2 is installed in valve body 1 upper end, can realize by modes such as welding, on adpting flange 2, is processed with bolt mounting holes, is arranged on aggregate treats the bottom of hopper 300 by bolt, installs to realize removably.Door-plate 5 is arranged at the inside of valve body 1, concrete operations, and in order to improve the intensity of door-plate 5, its bottom can arrange strengthens gusset (not shown); Door-plate 5 is fixedly connected with (as welding) with rotating shaft 8, freely rotate with rotating shaft 8; When discharge gate device 100 is closed, door-plate 5 is horizontal level, and when discharge gate device 100 is opened, door-plate 5 is near vertical position.Rotating shaft 8 is arranged on bearing 7, realizes rotating manner connect by bearing.Crank 9 can be fixedly connected with rotating shaft 8 by modes such as keys.When crank 9 rotates, drive rotating shaft 8 to rotate together, finally drive door-plate 5 to rotate together, realize the opening and closing of discharge gate device 100.Mount pad 3 is fixed on valve body 1 side near lower position, and cylinder 4 is flexibly connected with mount pad 3 by Assembly of pin or bolt assembly, and cylinder 4 can freely rotate around the pin shaft hole of mount pad 3.Cylinder 4 piston rod heads are processed with external screw thread, and extension bar 6 one end are processed with internal thread, and both connect by engage thread, can precession, screw out and regulate mounting distance.The other end of extension bar 6 is flexibly connected with crank 9 by Assembly of pin or bolt assembly, and both are free to rotate.The inlet, outlet of the magnetic valve (not shown) control cylinder by electric control system, realize elongation and the shortening of piston rod, to realize the rotation of crank 9, finally drive rotating shaft 8 and door-plate 5 to rotate together.Valve body backing plate 10 is fixed in valve body 1 bottom sides by welding manner, is processed with several threaded mounting holes on valve body backing plate 10.
Deflector chute assembly is except comprising existing deflector chute backing plate 11 and deflector chute 13, and preferably, it can also comprise coaming plate 15; Wherein, be processed with several threaded mounting holes on deflector chute backing plate 11, it fixedly mounts (as welding) on side, deflector chute 13 tops (upper end), and is flexibly connected with bucket valve member; Coaming plate 15 fixedly mounts (as welding) at the top of deflector chute backing plate 11, and like this, the four sides, top of deflector chute backing plate 11 all fences up with coaming plate 15, and the height of coaming plate 15 is higher than the overhead height of deflector chute 13.
Preferably, for further enhanced leaktightness effect, above-mentioned discharge gate device can also comprise the plate 17 that is tightly connected, and sealing connecting plate 17 is arranged on the outside of sealed elastic packing ring 16; It will be understood by those skilled in the art that for enhanced leaktightness effect, the size of the plate 17 that is tightly connected and the size of sealed elastic packing ring 16 adapt.When concrete operations, the plate 17 that is tightly connected can be straight steel plate, as good material is made into the straight plate that is tightly connected to utilize strain.
Preferably, discharge gate device can also comprise: be arranged on bucket valve member side and sealed elastic packing ring 16 between side plate 14, the bottom of side plate 14 bends inwards.Further preferably, the bottom of side plate 14 all separates setting with bucket valve member and coaming plate 15, be that side plate 14 bottoms and coaming plate 15 keep certain distance, also keep certain distance with the bottom of bucket valve member simultaneously, ensure that side plate 14 can take out from the gap of valve body 1 and deflector chute 13, after connecting plate 17 to be sealed is removed, bucket valve member energy horizontal direction is taken out, and ensures easy to maintenance.
Preferably, for the water that ensures to be splashed on side plate 14 cannot ooze out, the height of coaming plate 15 end faces is higher than the height of side plate 14 bottom surfaces.
When concrete operations, side plate 14 can be installed (as passed through bolt assembly) in bucket valve member on the side of valve body backing plate 10; Preferably, in order to facilitate side plate 14 to dismantle, the height of side plate 14 end faces is higher than the height of valve body backing plate 10 end faces.
As shown in Figure 4, in the second embodiment of discharge gate device 100, other elements are all identical with Fig. 2, difference is, the steel plate of plate 17 ' for reserved elastic deformation amount is tightly connected, when concrete operations, being tightly connected plate 17 can be by arranging bending structure to reserve elastic deformation amount's (can also ensure reserved elastic deformation amount from the selection of self elastomeric material) in mid portion or other positions, the bending structure of intermediate portion can be " V " shape, arc, semicircle, waveform or S shape structure etc., the thickness of be tightly connected plate 17 ' and the plate 17 that is tightly connected can be chosen to smaller value, desirable 1～3mm, give full play to the elastic deformation amount of steel plate, so that the displacement that compensation valve moves up and down.
Above-mentioned discharge gate operation principle is as follows: stir while beginning, door-plate 5 is opened, and aggregate is thrown in into stirring host 200, and stirring host 200 continuously stirs to produce concrete; One dish gather materials stir after, door-plate 5 cuts out, aggregate treat hopper 300 serve as next dish aggregate temporary effect; Due to bucket valve member side side plate 14 has been installed, deflector chute backing plate 11 tops are provided with coaming plate 15, and side plate 14 bottom level are lower than the height of coaming plate 15 upper ends, make aggregate treat that water residual in hopper medium sand, stone cannot ooze out from the side, thereby play the effect of waterproof, can also stop the water of main frame drop cloth aqueduct shower nozzle ejection be splashed to side and finally ooze out simultaneously.The middle part of sealed elastic packing ring 16 is designed to bending fold shape, i.e. reserved certain deflection, when treating temporary aggregate in hopper, gravitate, valve moves down distortion, and caulking gum packing ring bears compression; When aggregate is in the time that hopper 300 is thrown in aggregate and entered stirring host 200, be subject to gravity to alleviate effect, aggregate treats that hopper 300 weight sharply decline, the distortion that moves up of bucket valve member, sealed elastic packing ring 16 bears stretching, and elongate to outside both sides; When aggregate is delivered aggregate in hopper 300 time, under Action of Gravity Field, bucket valve member moves down, and sealed elastic packing ring 16 both sides are to internal contraction; Utilize the reserved deflection of sealed elastic packing ring 16, compensation aggregate is treated the displacement that bucket valve member that hopper 300 changes in weight are brought moves up and down, and avoids sealed elastic packing ring 16 to occur drawing crack, prevents water and exosmoses, and dust leaks.It should be noted that, act on consistent with the elastic deformation amount of sealed elastic packing ring 16, the reserved elastic deformation amount in the middle of plate 17 ' of being tightly connected also can compensate the displacement that bucket valve member that aggregate treats that hopper 300 changes in weight are brought moves up and down, the excessive distortion of plate 17 ' that prevents from being tightly connected causes cracking, stops infiltration and dust to leak.
Discharge gate device of the present invention, by the reserved elastic deformation amount of sealed elastic packing ring, prevents drawing crack, stops water infiltration, and dust leaks, and improves environmental-protecting performance; Preferably, the also reserved certain deflection of plate that is tightly connected, anti-deformation cracking, the service life of improving be tightly connected plate and sealed elastic packing ring; Preferably, utilize side plate bottom level lower than coaming plate overhead height, ensure that the water being splashed on side plate cannot ooze out; Preferably, utilize side plate bottom and bucket valve member bottom and coaming plate to have certain distance, ensure side plate convenient disassembly, finally make the valve member convenient disassembly that struggles against, improve maintainability.
These are only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a discharge gate device, be used for connecting aggregate and treat hopper and stirring host, described discharge gate device comprises: bucket valve member and deflector chute assembly, described bucket valve member is flexibly connected with described deflector chute assembly, it is characterized in that, described discharge gate device also comprises: for sealing the sealed elastic packing ring (16) of the side of described bucket valve member and the side of described deflector chute assembly, described sealed elastic packing ring (16) is reserved elastic deformation amount;
Described discharge gate device also comprises: be arranged on the side plate (14) between side and the described sealed elastic packing ring (16) of described bucket valve member, the bottom of described side plate (14) bends inwards, and described deflector chute assembly comprises: deflector chute backing plate (11), deflector chute (13), coaming plate (15);
Described deflector chute backing plate (11) is fixedly mounted in described deflector chute (13) top-side, and is flexibly connected with described bucket valve member;
Described coaming plate (15) is fixedly mounted on the top of described deflector chute backing plate (11); The height of described coaming plate (15) end face is higher than the height of described side plate (14) bottom surface.
2. discharge gate device according to claim 1, is characterized in that, described sealed elastic packing ring (16) is by arranging the reserved elastic deformation amount of buckle fold structure at mid portion.
3. discharge gate device according to claim 2, is characterized in that, the buckle fold structure of described sealed elastic packing ring (16) mid portion is " V " shape, arc, waveform or S shape structure.
4. discharge gate device according to claim 1, it is characterized in that, also comprise: be arranged on the plate that is tightly connected (17) in described sealed elastic packing ring (16) outside, described in the be tightly connected size of plate (17) and the size of described sealed elastic packing ring (16) adapt.
5. discharge gate device according to claim 4, is characterized in that, described in be tightly connected plate (17) for straight steel plate or be reserved elastic deformation amount's steel plate.
6. discharge gate device according to claim 5, is characterized in that, described in be tightly connected plate (17) by the reserved elastic deformation amount of bending structure is set at mid portion.
7. according to the discharge gate device described in any one in claim 1-6, it is characterized in that, described side plate (14) is arranged on the side of the valve body backing plate (10) in described bucket valve member; The height of described side plate (14) end face is higher than the height of described valve body backing plate (10) end face.
8. according to the discharge gate device described in any one in claim 1-6, it is characterized in that, the bottom of described side plate (14) all separates setting with described bucket valve member and described coaming plate (15).
9. according to the discharge gate device described in any one in the claims 1-6, it is characterized in that, described sealed elastic packing ring (16) is caulking gum packing ring.
10. a concrete batch plant, is characterized in that, comprises the discharge gate device described in any one in the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377816.2A CN102601867B (en) | 2011-11-24 | 2011-11-24 | Unloading valve device and concrete agitating equipment provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377816.2A CN102601867B (en) | 2011-11-24 | 2011-11-24 | Unloading valve device and concrete agitating equipment provided with same |
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| Publication Number | Publication Date |
|---|---|
| CN102601867A CN102601867A (en) | 2012-07-25 |
| CN102601867B true CN102601867B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110377816.2A Active CN102601867B (en) | 2011-11-24 | 2011-11-24 | Unloading valve device and concrete agitating equipment provided with same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149203B (en) * | 2014-08-10 | 2017-01-11 | 三一汽车制造有限公司 | Aggregate standby hopper, concrete batching plant and aggregate standby hopper unloading method |
| CN104385464B (en) * | 2014-09-22 | 2017-04-05 | 三一汽车制造有限公司 | Aggregate treats hopper, concrete mixing plant and aggregate sub-material control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3310176A1 (en) * | 1982-03-23 | 1983-09-29 | Jona Örnsköldsvik Bylund | Orifice for the application of viscous materials, especially of concrete-forming mixtures |
| CN2747314Y (en) * | 2004-12-01 | 2005-12-21 | 郑州知信机电科技开发有限公司 | Shotcreting machine with material guiding device |
| EP1882571A1 (en) * | 2006-07-26 | 2008-01-30 | Ta-Ro Progetti s.n.c. di Tagliati Rodolfo E C. | An isostatic die for tile forming |
| CN201211978Y (en) * | 2007-12-28 | 2009-03-25 | 王建宾 | High efficiency belt conveyor feeding device and batching system formed thereby |
| CN201432371Y (en) * | 2009-05-25 | 2010-03-31 | 福建南方路面机械有限公司 | Seal structure of discharge door of asphalt cement sand grout blending host machine |
| CN101890761A (en) * | 2010-06-30 | 2010-11-24 | 三一重工股份有限公司 | Blanking adjustable discharging hopper device and concrete batch plant applying same |
| CN202507396U (en) * | 2011-11-24 | 2012-10-31 | 三一重工股份有限公司 | Discharge valve device and concrete stirring device with same |
-
2011
- 2011-11-24 CN CN201110377816.2A patent/CN102601867B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3310176A1 (en) * | 1982-03-23 | 1983-09-29 | Jona Örnsköldsvik Bylund | Orifice for the application of viscous materials, especially of concrete-forming mixtures |
| CN2747314Y (en) * | 2004-12-01 | 2005-12-21 | 郑州知信机电科技开发有限公司 | Shotcreting machine with material guiding device |
| EP1882571A1 (en) * | 2006-07-26 | 2008-01-30 | Ta-Ro Progetti s.n.c. di Tagliati Rodolfo E C. | An isostatic die for tile forming |
| CN201211978Y (en) * | 2007-12-28 | 2009-03-25 | 王建宾 | High efficiency belt conveyor feeding device and batching system formed thereby |
| CN201432371Y (en) * | 2009-05-25 | 2010-03-31 | 福建南方路面机械有限公司 | Seal structure of discharge door of asphalt cement sand grout blending host machine |
| CN101890761A (en) * | 2010-06-30 | 2010-11-24 | 三一重工股份有限公司 | Blanking adjustable discharging hopper device and concrete batch plant applying same |
| CN202507396U (en) * | 2011-11-24 | 2012-10-31 | 三一重工股份有限公司 | Discharge valve device and concrete stirring device with same |
Non-Patent Citations (2)
| Title |
|---|
| 《皮带机导料槽密封形式的改进》;刘嵩;《港口装卸》;20071231(第3期);第45页 * |
| 刘嵩.《皮带机导料槽密封形式的改进》.《港口装卸》.2007,(第3期),第45页. |
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