CN212540039U - Cement fineness negative pressure screen analysis appearance - Google Patents
Cement fineness negative pressure screen analysis appearance Download PDFInfo
- Publication number
- CN212540039U CN212540039U CN202021093786.3U CN202021093786U CN212540039U CN 212540039 U CN212540039 U CN 212540039U CN 202021093786 U CN202021093786 U CN 202021093786U CN 212540039 U CN212540039 U CN 212540039U
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- Prior art keywords
- sieve
- negative pressure
- screen
- analysis appearance
- cement fineness
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- 239000004568 cement Substances 0.000 title claims abstract description 26
- 238000004458 analytical method Methods 0.000 title abstract description 18
- 230000000694 effects Effects 0.000 claims description 9
- 238000005029 sieve analysis Methods 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 29
- 239000008187 granular material Substances 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 16
- 238000013461 design Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010902 straw Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model relates to a cement fineness negative pressure screen analysis appearance relates to concrete detection equipment technical field, aims at solving among the prior art powder granule adhesion and covers at the sieve, influences the problem of experiment precision. It includes the screen analysis appearance body, be provided with the negative pressure sieve on the sieve seat of screen analysis appearance body, be provided with the screen cover on the negative pressure sieve, the screen cover passes through the lock joint subassembly to be fixed on the negative pressure sieve, it can be right still to be provided with on the screen analysis appearance body the screen cover carries out the subassembly that strikes. The utility model discloses can reduce the adhesion volume of powder granule on the sieve lid, increase the actual sieve weight of powder granule, promote the experiment precision.
Description
Technical Field
The utility model belongs to the technical field of concrete detection equipment technique and specifically relates to a cement fineness negative pressure screen analysis appearance is related to.
Background
The negative pressure screen analyzer can be used for measuring the fineness of portland cement, common cement, slag cement, live volcanic cement, fly ash cement and other cement, and is a necessary instrument for cement factories, construction companies and colleges.
Chinese utility model patent with publication number CN206321539U discloses: the utility model provides a cement fineness negative pressure screen analysis appearance, includes the screen analysis appearance body, including the sieve tray that has the inner chamber on the screen analysis appearance body, sieve tray bottom is provided with the straw with the inner chamber intercommunication, be provided with the test sieve of installing in the inner chamber upper end and having the screen hole on the sieve tray, the closing cap has the screen cover on the test sieve, the screen cover is fixed with the test sieve block, the intracavity is provided with the jet-propelled subassembly that is located the test sieve below, intracavity wall is provided with the mediation board that goes up and down including, mediation board upper surface is provided with the sharp needle portion relative with the screen hole, be provided with the driving piece that the sharp needle portion of drive penetrated in the screen hole on the sieve tray.
During the use, install the test sieve on the sieve seat, pour cement powder granule into in the test sieve, with the screen cover block lid on the test sieve, jet-propelled in the jet-propelled nozzle orientation test sieve of air jet to the powder granule in the drive test sieve flows, and the straw is less cement powder of granule in with the test sieve is siphoned away through the screen hole, and the great cement powder of granule is stayed in the test sieve. After using a period, the screen hole on the test sieve blocks up, and driving piece drive mediation board reciprocates to drive sharp needle portion and penetrate in the screen hole, the mediation board reciprocates, makes sharp needle portion business turn over screen hole, and sharp needle portion dredges the screen cloth, makes the tiny particle powder can be siphoned away by the straw through the screen hole.
The above prior art solutions have the following drawbacks: in order to enable powder particles in the test sieve to flow and scatter, the air nozzle is used for spraying air to the test sieve, and partial powder particles in the test sieve are adhered to the sieve cover under the driving of air flow sprayed by the air nozzle, so that the test precision is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a cement fineness negative pressure sieve analysis appearance, its adhesion volume that can reduce the powder granule on the sieve lid increases the actual sieve weight of powder granule, promotes the experiment precision.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a cement fineness negative pressure screen analysis appearance, includes the screen analysis appearance body, be provided with the negative pressure sieve on the sieve seat of screen analysis appearance body, be provided with the sifter lid on the negative pressure sieve, the sifter lid passes through the lock joint subassembly to be fixed on the negative pressure sieve, it can be right still to be provided with on the screen analysis appearance body the sifter lid carries out the subassembly that strikes.
By adopting the technical scheme, during detection, the fastening component is adjusted, the fastening component is opened, the screen cover is taken down, the weighed powder particles to be detected are poured into the negative pressure screen, the screen cover is covered, the fastening component is adjusted, the screen cover is fixed on the negative pressure screen by the fastening component, the screen analyzer body is adjusted to be started, an air nozzle in the screen analyzer body sprays air to the negative pressure screen, the powder particles in the negative pressure screen flow, part of the powder particles are adhered to the screen cover, the knocking component is adjusted, the knocking component is started, the screen cover is knocked by the knocking component to drive the screen cover to vibrate, and the powder particles adhered to the screen cover are vibrated away from the screen cover and are filtered by the negative pressure screen under the action of negative pressure; the designed knocking component shakes the powder particles away from the screen cover through knocking the screen cover, so that the adhesion amount of the powder particles on the screen cover is reduced, the actual screening amount of the powder particles is increased, and the experiment precision is improved; the lock joint subassembly of design is fixed the screen cover, and screen cover and negative pressure sieve separation when avoiding knocking the subassembly and knocking the screen cover avoid knocking the subassembly and to produce the influence to the working pressure of sieve analysis appearance inner chamber, ensure the experiment precision.
The present invention may be further configured in a preferred embodiment as: the knocking component comprises a supporting seat arranged on the screen analyzer body, a driving motor is arranged on the supporting seat, a hanging ring is arranged on an output shaft of the driving motor, a hanging chain is hung on the hanging ring, and knocking balls are arranged at one end, far away from the output shaft of the driving motor, of the hanging chain.
By adopting the technical scheme, after the body of the screen analyzer is started, the driving motor is adjusted to be started, the output shaft of the driving motor rotates, the rotating speed of the output shaft is increased, the output shaft drives the knocking ball to rotate through the hanging chain, the screen cover is repeatedly knocked in the rotating process of the knocking ball, and powder particles adhered to the bottom wall of the screen cover are vibrated away from the screen cover; the knocking component can knock the screen cover repeatedly, and is simple in structure, good in knocking effect, convenient and practical.
The present invention may be further configured in a preferred embodiment as: the knocking ball is made of elastic materials.
Through adopting above-mentioned technical scheme, reduce the pressure to the screen cover when strikeing the ball and strike the screen cover, avoid the screen cover to warp the damage, prolong the life of screen cover.
The present invention may be further configured in a preferred embodiment as: the supporting seat is rotatably connected with a turntable, and the driving motor is arranged on the turntable.
By adopting the technical scheme, before the powder particles to be detected are poured into the negative pressure sieve, the turntable is rotated to drive the knocking balls to deflect to the position of the sieve seat far away from the screen analyzer body; after the screen cover and the fastening component are installed, the rotating disc is rotated to reset, and the knocking ball is driven to rotate back to the position of the screen seat of the screen analyzer body; the carousel of design is convenient for to the material of loading in the negative pressure sieve, and can avoid knocking the subassembly and interfere the sieve lid fixed, convenient and practical.
The present invention may be further configured in a preferred embodiment as: run through carousel threaded connection has a spacing bolt, spacing bolt can with the supporting seat butt.
Through adopting above-mentioned technical scheme, the spacing bolt of design carries on spacingly to the carousel, avoids driving motor during operation carousel to rotate, guarantees to strike the effect.
The present invention may be further configured in a preferred embodiment as: the lock joint subassembly is located including the cover solid fixed ring on the sieve analysis appearance body sieve seat with set up in gu fixed ring top and with gu fixed ring can dismantle fixed connection's loose ring, the loose ring top is provided with binding off clamping ring with one heart, binding off clamping ring internal diameter is less than the sieve lid external diameter.
By adopting the technical scheme, after the screen cover is arranged on the negative pressure screen, the movable ring is adjusted, so that the bottom wall of the closing-in pressure ring is tightly abutted against the periphery of the screen cover, the movable ring is fixed on the fixed ring, and the screen cover is fixed; the lock joint subassembly of design is exerted the pressure that the sieve was covered through binding off clamping ring, fixes the sieve lid, simple structure, convenient to use, and is fixed effectual.
The present invention may be further configured in a preferred embodiment as: an annular limiting groove is concentrically formed in one side, away from the movable ring, of the bottom wall of the closing-up pressure ring, and the screen cover can be clamped in the annular limiting groove.
Through adopting above-mentioned technical scheme, the spacing groove of design further prescribes a limit to the sieve lid position, avoids knocking the in-process sieve lid incline, guarantees fixed effect.
The present invention may be further configured in a preferred embodiment as: and an elastic cushion layer is arranged on the groove wall of the annular limiting groove.
Through adopting above-mentioned technical scheme, the elastic cushion layer of design further strengthens the effect that compresses tightly of binding off clamping ring to the sieve lid, promotes fixed quality.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the designed knocking component shakes the powder particles away from the screen cover through knocking the screen cover, so that the adhesion amount of the powder particles on the screen cover is reduced, the actual screening amount of the powder particles is increased, and the experiment precision is improved; the designed fastening assembly fixes the screen cover, so that the screen cover is prevented from being separated from the negative pressure screen when the screen cover is knocked by the knocking assembly, the knocking assembly is prevented from influencing the working pressure of the inner cavity of the screen analyzer, and the experimental precision is ensured;
2. the carousel of design is convenient for to the material of loading in the negative pressure sieve, and can avoid knocking the subassembly and interfere the sieve lid fixed, convenient and practical.
Drawings
FIG. 1 is a schematic view of the overall structure of the negative pressure analyzer for cement fineness of the present invention;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 3 is a schematic diagram of an exploded structure of the movable ring.
In the figure, 1, a screen analyzer body; 3. a screen cover; 4. a fastening assembly; 41. a fixing ring; 42. a movable ring; 43. closing up the compression ring; 431. an annular limiting groove; 4311. an elastic cushion layer; 5. a knocking component; 51. a supporting seat; 511. a turntable; 5111. a limit bolt; 52. a drive motor; 53. hanging a chain; 54. knocking and hitting the ball.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a cement fineness negative pressure screen analysis appearance, including screen analysis appearance body 1, install the negative pressure sieve on the sieve seat of screen analysis appearance body 1, the negative pressure sieve is shown in the drawing. The negative pressure sieve upper cover is equipped with the sifter lid 3, and the sifter lid 3 passes through lock joint subassembly 4 to be fixed on the negative pressure sieve, still is provided with on the screen analysis appearance body 1 and can carries out the subassembly 5 that strikes to sifter lid 3.
Referring to fig. 2, knocking component 5 includes a support seat 51 welded to screen analyzer body 1, and support seat 51 is connected with rotary table 511 in a rotating manner, and a limit bolt 5111 is connected with rotary table 511 in a threaded manner, and limit bolt 5111 can abut against support seat 51. The top wall of the rotating disc 511 is connected with a driving motor 52 through a bolt, the end part of an output shaft of the driving motor 52 is welded with a hanging ring, a hanging chain 53 is hung on the hanging ring, one end, far away from the output shaft of the driving motor 52, of the hanging chain 53 is hung with an elastic knocking ball 54, and in the embodiment, the knocking ball 54 is preferably a rubber ball.
Referring to fig. 2 and 3, the fastening assembly 4 includes a fixed ring 41 sleeved on the sieve seat of the sieve analyzer body 1 and a movable ring 42 installed above the fixed ring 41 and connected with the fixed ring 41 through a bolt, a closing-up compression ring 43 is integrally arranged at the top of the movable ring 42, the closing-up compression ring 43 and the movable ring 42 are concentrically arranged, and the inner diameter of the closing-up compression ring 43 is smaller than the outer diameter of the sieve cover 3. An annular limiting groove 431 for clamping the screen cover 3 is concentrically formed in one side, away from the movable ring 42, of the bottom wall of the closing-in pressure ring 43, and an elastic cushion layer 4311 is laid on the groove wall of the annular limiting groove 431.
The implementation principle of the embodiment is as follows: before detection, the limiting bolt 5111 is unscrewed, the rotary table 511 is rotated, the rotary table 511 drives the driving motor 52 to rotate, the driving motor 52 drives the knocking ball 54 to rotate, the knocking ball 54 deflects to one side far away from the sieve seat position of the elutriation instrument body 1, the locking bolt is unscrewed, the movable ring 42 is taken down, then the sieve cover 3 is taken down, the weighed powder particles to be detected are poured into the negative pressure sieve, the sieve cover 3 is covered, the movable ring 42 is sleeved and the position of the movable ring 42 is adjusted, the sieve cover 3 is embedded in the limiting groove, the locking bolt is screwed down, the movable ring 42 is fixed on the fixing ring 41, and the fixation of the sieve cover 3 is completed. Then, the turntable 511 is rotated, the turntable 511 drives the driving motor 52 to reset, the driving motor 52 drives the knocking ball 54 to return to the screen cover 3, the limiting bolt 5111 is screwed, the positioning of the turntable 511 is completed, and the detection is started.
During detection, the screen analyzer body 1 is adjusted to be started, an air nozzle in the screen analyzer body 1 sprays air to the negative pressure screen, powder particles in the negative pressure screen flow, part of the powder particles are adhered to the screen cover 3, the adjusting driving motor 52 is adjusted to be started, an output shaft of the driving motor 52 rotates and accelerates along with the rotating speed of the output shaft, the output shaft drives the knocking balls 54 to rotate through the hanging chain 53, the knocking balls 54 repeatedly knock the screen cover 3 in the rotating process, the powder particles adhered to the bottom wall of the screen cover 3 are vibrated away from the screen cover 3, and the powder particles are filtered by the negative pressure screen under the negative pressure effect.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a cement fineness negative pressure sieve analysis appearance, includes sieve analysis appearance body (1), be provided with the negative pressure sieve on the sieve seat of sieve analysis appearance body (1), be provided with sieve lid (3), its characterized in that on the negative pressure sieve: the sieve lid (3) is fixed on the negative pressure sieve through the fastening component (4), and the sieve analyzer body (1) is further provided with a knocking component (5) which can knock the sieve lid (3).
2. The cement fineness negative pressure screen analyzer of claim 1, characterized in that: the knocking component (5) comprises a supporting seat (51) arranged on the screen analyzer body (1), a driving motor (52) is arranged on the supporting seat (51), a hanging chain (53) is arranged on an output shaft of the driving motor (52) in a hanging mode, and a knocking ball (54) is arranged at one end, far away from the output shaft of the driving motor (52), of the hanging chain (53).
3. The cement fineness negative pressure screen analyzer of claim 2, characterized in that: the knocking ball (54) is made of elastic material.
4. The cement fineness negative pressure screen analyzer according to any one of claims 2 or 3, characterized in that: the supporting seat (51) is rotatably connected with a rotary disc (511), and the driving motor (52) is arranged on the rotary disc (511).
5. The cement fineness negative pressure screen analyzer of claim 4, characterized in that: run through carousel (511) threaded connection has spacing bolt (5111), spacing bolt (5111) can with supporting seat (51) butt.
6. The cement fineness negative pressure screen analyzer of claim 1, characterized in that: fastening component (4) are located including the cover solid fixed ring (41) on sieve analysis appearance body (1) sieve seat with set up in gu fixed ring (41) top and with gu fixed ring (41) can dismantle fixed connection's activity ring (42), activity ring (42) top is provided with binding off clamping ring (43) with one heart, binding off clamping ring (43) internal diameter is less than sieve lid (3) external diameter.
7. The cement fineness negative pressure screen analyzer of claim 6, characterized in that: annular limiting groove (431) have been seted up with one heart to binding off clamping ring (43) diapire keep away from activity ring (42) one side, sieve lid (3) can the joint be in annular limiting groove (431).
8. The cement fineness negative pressure screen analyzer of claim 7, characterized in that: and an elastic cushion layer (4311) is arranged on the groove wall of the annular limiting groove (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021093786.3U CN212540039U (en) | 2020-06-12 | 2020-06-12 | Cement fineness negative pressure screen analysis appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021093786.3U CN212540039U (en) | 2020-06-12 | 2020-06-12 | Cement fineness negative pressure screen analysis appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212540039U true CN212540039U (en) | 2021-02-12 |
Family
ID=74548144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021093786.3U Expired - Fee Related CN212540039U (en) | 2020-06-12 | 2020-06-12 | Cement fineness negative pressure screen analysis appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212540039U (en) |
-
2020
- 2020-06-12 CN CN202021093786.3U patent/CN212540039U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 |