CN203108778U - Dry powder mixing plant and vibrating screen thereof - Google Patents

Dry powder mixing plant and vibrating screen thereof Download PDF

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Publication number
CN203108778U
CN203108778U CN 201220581713 CN201220581713U CN203108778U CN 203108778 U CN203108778 U CN 203108778U CN 201220581713 CN201220581713 CN 201220581713 CN 201220581713 U CN201220581713 U CN 201220581713U CN 203108778 U CN203108778 U CN 203108778U
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CN
China
Prior art keywords
vibratory sieve
sieve
shock
vibrating screen
air bag
Prior art date
Application number
CN 201220581713
Other languages
Chinese (zh)
Inventor
王泽堂
陈志强
路则鹏
肖元生
陈昕
徐文杰
Original Assignee
北汽福田汽车股份有限公司
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Priority to CN 201220581713 priority Critical patent/CN203108778U/en
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Publication of CN203108778U publication Critical patent/CN203108778U/en

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Abstract

The utility model discloses a vibrating screen. The vibrating screen comprises a base, a vibrating screen body, an elastic component and a vibration damper. Specifically, the elastic component is arranged on the base so as to support the vibrating screen body; the vibration damper is arranged between the base and the vibrating screen body and is connected with the base and the vibrating screen body. According to the vibrating screen disclosed by the embodiment of the utility model, when screening is completed, the vibration damper enables the vibrating screen body to stop vibrating quickly, so that the long-time low-frequency vibration of the vibrating screen body is prevented, and the damages of mechanical mechanisms of a dry powder mixing plant are reduced. Moreover, compared with the traditional technology that an eccentric motor is adopted for plug braking, the eccentric motor is protected, and simultaneously the damages of control system elements caused by instantaneous high current are also prevented. The vibrating screen is simple in structure and convenient to use, and the service life of the dry powder mixing plant is prolonged. Moreover, the utility model further discloses a dry powder mixing plant with the vibrating screen.

Description

Dry powder mixing plant and vibratory sieve thereof
Technical field
The utility model relates to dry powder stirring technique field, particularly a kind of vibratory sieve and dry powder mixing plant with this vibratory sieve.
Background technology
Dry powder mixing plant (building) is the complete special-purpose machinery of preparation dry powder and mortar.The type equipment mainly comprises drying system, stocking system, induction system, metering system, stirring system, pneumatic system, general frame, control room and dust collecting system etc.Wherein induction system comprises damp sand transport portion, dry sand transport portion, dry sand promotes and sieve part, the finished product delivery section is graded.The dry powder mortar mixing plant screening system mainly adopts grading oscillating screen at present, and primary structure is sieve nest, eccentric motor, feed inlet and outlet, supporting leg and spacing steel spring.In the production process, eccentric motor rotates, and effect of inertia moment drives the vibratory sieve vibrations, and dry sand enters behind the sieve nest through entering storage device after the screen fractionation.Screening finishes, and the sieve nest vibration frequency slows down, and low-frequency vibration produces strong resonance with the dry powder mortar mixing plant steel construction, and amplitude is higher.Because of building height degree height, bear a heavy burden big, long-time low-frequency resonance harm building body safety.Existing solution is that screening finishes the back reversing braking, but reversing braking motor transient current can surpass rated current more than 10 times, and is bigger to the eccentric motor infringement, and moment high electric current control system component is had HI high impact.
The utility model content
The utility model one of is intended to solve the problems of the technologies described above at least to a certain extent or provides a kind of useful commerce to select at least.For this reason, a purpose of the present utility model is to propose a kind ofly to adopt damper to carry out damping to increase its stable vibratory sieve.
According to vibratory sieve of the present utility model, comprising: base, vibratory sieve sieve nest, elastomeric element and damper.Particularly, described elastomeric element is installed on the described base to support described vibratory sieve sieve nest; Described damper is located between described base and the described vibratory sieve sieve nest and with described base and links to each other with described vibratory sieve sieve nest.
According to vibratory sieve of the present utility model, between base and vibratory sieve sieve nest, damper is set, damper is started working when screening finishes.Thus, when screening finished, damper can make the vibratory sieve sieve nest stop vibrations fast, avoids the long-time low-frequency vibration of vibratory sieve sieve nest, reduces the infringement to dry powder mixing plant mechanical mechanism.In addition, relatively eccentric motor has not only been protected in the employing eccentric motor reversing braking in the conventional art, also avoids producing instantaneous high electric current simultaneously and causes damage to control system component.Simple in structure, easy to use, and the service life of having improved the dry powder mixing plant.
In addition, according to the above-mentioned vibratory sieve of the utility model, can also have following additional technical characterictic:
Described damper is located at the place, four angles of described vibratory sieve sieve nest below respectively.
In addition, described elastomeric element is spring.
Advantageously, described damper is the shock-absorption air bag with air inlet pipe.
Further, this vibratory sieve also comprises shock absorber support, and described shock absorber support is located on the described base, and described shock-absorption air bag is located at the upper end of described shock absorber support.
Advantageously, the air inlet pipe of described shock-absorption air bag is located in the described shock absorber support.
In addition, described air inlet pipe is provided with magnetic valve.
Advantageously, described shock-absorption air bag is provided with relief valve and described relief valve is located on the sidewall of described shock-absorption air bag.
In addition, the lower surface of described shock-absorption air bag is lower than the lower surface of described spring, and the maximum height of described shock-absorption air bag expansion is greater than 1.5 times of described spring height.
According to dry powder mixing plant of the present utility model, comprise according to the aforesaid vibratory sieve of the utility model.
According to vibratory sieve of the present utility model, between base and vibratory sieve sieve nest, damper is set, damper is started working when screening finishes.Thus, when screening finished, damper can make the vibratory sieve sieve nest stop vibrations fast, avoids the long-time low-frequency vibration of vibratory sieve sieve nest, reduces the infringement to dry powder mixing plant mechanical mechanism.In addition, relatively eccentric motor has not only been protected in the employing eccentric motor reversing braking in the conventional art, also avoids producing instantaneous high electric current simultaneously and causes damage to control system component.Simple in structure, easy to use, and the service life of having improved the dry powder mixing plant.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram of the vibratory sieve of an embodiment of the present utility model.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", close the orientation of indications such as " counterclockwise " or position is based on orientation shown in the drawings or position relation, only be the utility model and simplification description for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand the concrete implication of above-mentioned term in the utility model as the case may be.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, first feature second feature it " on " or D score can comprise that first and second features directly contact, can comprise that also first and second features are not directly contacts but by the contact of the additional features between them.And, first feature second feature " on ", " top " and " above " comprise first feature directly over second feature and oblique upper, or only represent that the first characteristic level height is higher than second feature.First feature second feature " under ", " below " and " below " comprise first feature under second feature and tiltedly, or only represent that the first characteristic level height is less than second feature.
Dry powder mixing plant (building) is the complete special-purpose machinery of preparation dry powder and mortar.The type equipment mainly comprises drying system, stocking system, induction system, metering system, stirring system, pneumatic system, general frame, control room and dust collecting system etc.Wherein induction system comprises damp sand transport portion, dry sand transport portion, dry sand promotes and sieve part, the finished product delivery section is graded.The dry powder mortar mixing plant screening system mainly adopts grading oscillating screen at present, and primary structure is sieve nest, eccentric motor, feed inlet and outlet, supporting leg and spacing steel spring.In the production process, eccentric motor rotates, and effect of inertia moment drives the vibratory sieve vibrations, and dry sand enters behind the sieve nest through entering storage device after the screen fractionation.Screening finishes, and the sieve nest vibration frequency slows down, and low-frequency vibration produces strong resonance with the dry powder mortar mixing plant steel construction, and amplitude is higher.Because of building height degree height, bear a heavy burden big, long-time low-frequency resonance harm building body safety.Existing solution is that screening finishes the back reversing braking, but reversing braking motor transient current can surpass rated current more than 10 times, and is bigger to the eccentric motor infringement, and moment high electric current control system component is had HI high impact.The purpose of this utility model is to adopt damper that reciprocating sieve is carried out damping to improve the vibratory sieve of its job stability.
Describe in detail with reference to the accompanying drawings according to vibratory sieve of the present utility model.
Fig. 1 makes the schematic diagram of an embodiment of the present utility model, and with reference to Fig. 1, this vibratory sieve comprises: base 10, vibratory sieve sieve nest 20, elastomeric element 30 and damper 40.
Specifically, elastomeric element 30 is installed on the base 10, and vibratory sieve sieve nest 20 is located at and is used for making elastomeric element 30 to support vibratory sieve sieve nest 20 on the elastomeric element 30.Vibratory sieve sieve nest 20 has charging aperture 21 and discharging opening 22, and vibratory sieve sieve nest 20 is provided with eccentric motor A.The dressing sieve timesharing that hops to it, material is started eccentric motor A and is made its rotation by charging aperture inputted vibration sieve sieve nest 20, and eccentric motor A drives the vibrations of vibratory sieve sieve nest.Under the elastic force effect of elastomeric element 30, make vibratory sieve sieve nest 20 continue vibrations at this moment, the screening material enters the storage system (not shown) from discharging opening 22.
Damper 40 is located between base 10 and the vibratory sieve sieve nest 20, and damper 40 links to each other with vibratory sieve sieve nest 20 with base 10.When screening stopped, eccentric motor A was out of service, and damper 40 is started working, and made vibratory sieve sieve nest 20 stop vibrations fast.
According to the vibratory sieve of the utility model embodiment, between base 10 and vibratory sieve sieve nest 20, damper 40 is set, damper 40 is started working when screening finishes.Thus, when screening finished, damper 40 can make vibratory sieve sieve nest 20 stop vibrations fast, avoids vibratory sieve sieve nest 20 long-time low-frequency vibrations, reduces the infringement to dry powder mixing plant mechanical mechanism.In addition, relatively eccentric motor A has not only been protected in the employing eccentric motor A reversing braking in the conventional art, also avoids producing instantaneous high electric current simultaneously and causes damage to control system component.Simple in structure, easy to use, and the service life of having improved the dry powder mixing plant.
In the utility model, damper 40 comprises four, and four angles that four dampers 40 are located at vibratory sieve sieve nest 20 belows respectively go out, so that vibratory sieve sieve nest 20 steady operations, improves the serviceability of dry powder mixing plant.
Certainly, the utility model does not limit the quantity of damper 40, and the damper 40 of varying number and layout only is for improving the stability of vibratory sieve, for example, adopting the damper 40 that is triangularly arranged also can satisfy the requirement of stability.It only is to illustrate of the present utility model that above-mentioned place, four angles below vibratory sieve sieve nest 20 arranges damper 40, can not be interpreted as the restriction to the utility model protection domain.
In addition, because spring has advantages such as simple in structure, easy for installation and low price, elastomeric element 30 is spring in the most preferred embodiment of the present utility model.Fig. 1 is a concrete example of the present utility model, in this example, height for the discharging opening 22 that increases vibratory sieve sieve nest 20, simultaneously in order to make the vibrations that vibratory sieve sieve nest 20 can be stable, be provided with a plurality of supports 11 at base 10, the a plurality of springs 30 corresponding with a plurality of support 11 are located at the upper end of support 11, and wherein a plurality of springs 30 have initial length unanimous on the whole and damped coefficient.The a plurality of springs 30 common vibratory sieve sieve nests 20 that support make the more stable vibrations of vibratory sieve sieve nest 20, avoid the each several part vibrations of vibratory sieve sieve nest 20 inhomogeneous.
In addition, the damper 40 that adopts in the utility model is shock-absorption air bag.This shock-absorption air bag 40 is provided with for the air inlet pipe 41 that feeds gas in shock-absorption air bag 40, and air inlet pipe 41 is provided with the magnetic valve (not shown).When screening finishes, control eccentric motor A enters unpowered inertia motion link, and vibratory sieve sieve nest 20 enters the low frequency high-amplitude vibrations stage, and battery valve is opened air inlet pipe 41, high pressure draught enters air inlet pipe 41, shock-absorption air bag 40 beginning pressuring expansions, vibratory sieve sieve nest 20 acts on shock-absorption air bag 40, and the volume of shock-absorption air bag 40 reduces and air pressure increases, the partial action power that balance vibration sieve sieve nest 20 is downward, reduce vibrational energy, reduce to shake amplitude, and accelerate vibration energy release.Because shock-absorption air bag 40 is the soft impact of air-flow, has avoided the frame for movement of vibratory sieve sieve nest 20 impaired.
In addition, in embodiment more of the present utility model, base 10 is provided with shock absorber support 12, and shock-absorption air bag 40 is located at the upper end of shock absorber support 12.Shock-absorption air bag 40 is linked to each other with vibratory sieve sieve nest 20.At this moment, the air inlet pipe 41 of shock-absorption air bag 40 can be located in the shock absorber support 12, assembling and the convenient air inlet pipe 41 of passing through of having simplified shock-absorption air bag 40 feed gases in shock-absorption air bag 40.
In addition, shock-absorption air bag 40 is provided with relief valve 42, and relief valve 42 is located on the sidewall of shock-absorption air bag 40.Thus, the gas in shock-absorption air bag 40 limits greater than its pressure bearing the momentum of shock-absorption air bag 40, and magnetic valve is opened, thereby it is impaired to avoid shock-absorption air bag 40 to impact.
For guaranteeing the stable of shock-absorption air bag 40 work and avoid shock-absorption air bag 40 to influence the vibration of vibratory sieve sieve nest 20 that the lower surface of shock-absorption air bag 40 is lower than the lower surface of spring 30, and the maximum height of shock-absorption air bag 40 expansions is greater than 1.5 times of spring 30 height.That is to say that in vibratory sieve sieve nest 20 screening processes, the upper end of shock absorber support 12 can not interfere phenomenon with vibratory sieve sieve nest 20, avoids influencing the vibration of vibratory sieve sieve nest 20.When screening finishes, the upper end of shock-absorption air bag 40 props up vibratory sieve sieve nest 20, strengthens the percussion of 40 pairs of vibratory sieve sieve nests 20 of shock-absorption air bag, makes spring 30 keep extended state as far as possible, avoid the invigoration effect of 30 pairs of vibratory sieve sieve nests of spring, 20 vibrations, improve damping efficiency.
Below the course of work of vibratory sieve is done concise and to the point description.
During the screening beginning, material has the charging aperture 21 of vibratory sieve sieve nest 20 to enter vibratory sieve sieve nest 20, start eccentric motor A, the rotation of eccentric motor A drives 20 vibrations of vibratory sieve sieve nest, under the elastic reaction of spring 30, make vibratory sieve sieve nest 20 keep vibrating state, the material after the screening has the discharging opening 22 of vibratory sieve sieve nest 20 to enter the storage device (not shown)
After screening is finished, disconnect eccentric motor A, eccentric motor A enters unpowered inertia operating state, and at this moment, vibratory sieve sieve nest 20 enters low frequency high-amplitude vibrations link.Open magnetic valve this moment, gases at high pressure have air inlet pipe 41 to enter shock-absorption air bag 40, shock-absorption air bag 40 increases expansion, vibratory sieve sieve nest 20 acts on shock-absorption air bag 40, the volume of shock-absorption air bag 40 reduces and the air pressure increase, the active force that balance vibration sieve sieve nest 20 is downward reduces vibration energy, reduces the vibrations amplitude.Accelerate vibration energy thus and discharge, reduce resonance facilities of mix storied building frame for movement is impacted.At this moment, if 20 pairs of shock-absorption air bag 40 momentums of vibratory sieve sieve nest limit greater than shock-absorption air bag 40 pressure bearings, relief valve 42 is opened, thereby it is impaired to avoid shock-absorption air bag 40 to impact.
According to dry powder mixing plant of the present utility model, comprise according to the aforesaid vibratory sieve of the utility model.
According to dry powder mixing plant of the present utility model, be equipped with according to the described vibratory sieve of the utility model previous embodiment.Thus, when bolting finished, damper 40 can make vibratory sieve sieve nest 20 stop vibrations fast, avoids vibratory sieve sieve nest 20 long-time low-frequency vibrations, reduces the infringement to dry powder mixing plant mechanical mechanism.In addition, relatively eccentric motor A has not only been protected in the employing eccentric motor A reversing braking in the conventional art, also avoids producing instantaneous high electric current simultaneously and causes damage to control system component.Simple in structure, easy to use, and the service life of having improved the dry powder mixing plant.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art in scope of the present utility model, can change above-described embodiment under the situation that does not break away from principle of the present utility model and aim, modification, replacement and modification.

Claims (10)

1. a vibratory sieve is characterized in that, comprising:
Base;
The vibratory sieve sieve nest;
Elastomeric element, described elastomeric element are installed on the described base to support described vibratory sieve sieve nest; With
Damper, described damper are located between described base and the described vibratory sieve sieve nest and with described base and link to each other with described vibratory sieve sieve nest.
2. vibratory sieve according to claim 1 is characterized in that, described damper is located at the place, four angles of described vibratory sieve sieve nest below respectively.
3. vibratory sieve according to claim 1 is characterized in that, described elastomeric element is spring.
4. vibratory sieve according to claim 3 is characterized in that, described damper is the shock-absorption air bag with air inlet pipe.
5. vibratory sieve according to claim 4 is characterized in that, also comprises shock absorber support, and described shock absorber support is located on the described base, and described shock-absorption air bag is located at the upper end of described shock absorber support.
6. vibratory sieve according to claim 5 is characterized in that, the air inlet pipe of described shock-absorption air bag is located in the described shock absorber support.
7. vibratory sieve according to claim 6 is characterized in that, described air inlet pipe is provided with magnetic valve.
8. vibratory sieve according to claim 4 is characterized in that, described shock-absorption air bag is provided with relief valve and described relief valve is located on the sidewall of described shock-absorption air bag.
9. according to each described vibratory sieve among the claim 4-8, it is characterized in that the lower surface of described shock-absorption air bag is lower than the lower surface of described spring, and the maximum height of described shock-absorption air bag expansion is greater than 1.5 times of described spring height.
10. a dry powder mixing plant is characterized in that, comprises according to each described vibratory sieve among the claim 1-9.
CN 201220581713 2012-11-06 2012-11-06 Dry powder mixing plant and vibrating screen thereof CN203108778U (en)

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Application Number Priority Date Filing Date Title
CN 201220581713 CN203108778U (en) 2012-11-06 2012-11-06 Dry powder mixing plant and vibrating screen thereof

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Application Number Priority Date Filing Date Title
CN 201220581713 CN203108778U (en) 2012-11-06 2012-11-06 Dry powder mixing plant and vibrating screen thereof

Publications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107008641A (en) * 2017-05-04 2017-08-04 新乡市振英机械设备有限公司 A kind of inclined type cleaning vibration sieve
CN108480200A (en) * 2018-04-09 2018-09-04 王旭雷 The vibratory separator of stoppage vibration impact is not generated
CN108526004A (en) * 2018-04-09 2018-09-14 王旭雷 Vibratory separator
CN108526003A (en) * 2018-04-09 2018-09-14 王旭雷 The vibration separate equipment of no shutdown impact
CN109137092A (en) * 2018-08-21 2019-01-04 王慧丽 A kind of Polyamide Yarns production technology

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107008641A (en) * 2017-05-04 2017-08-04 新乡市振英机械设备有限公司 A kind of inclined type cleaning vibration sieve
CN108480200A (en) * 2018-04-09 2018-09-04 王旭雷 The vibratory separator of stoppage vibration impact is not generated
CN108526004A (en) * 2018-04-09 2018-09-14 王旭雷 Vibratory separator
CN108526003A (en) * 2018-04-09 2018-09-14 王旭雷 The vibration separate equipment of no shutdown impact
CN108526003B (en) * 2018-04-09 2020-02-14 嘉兴鼎实机械制造股份有限公司 Vibration separator without stop impact
CN108480200B (en) * 2018-04-09 2020-04-28 浙江为康制药有限公司 Vibration separator without generating stop vibration impact
CN109137092A (en) * 2018-08-21 2019-01-04 王慧丽 A kind of Polyamide Yarns production technology

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