CN104614056A - Complete-machine weighing type chain plate scale - Google Patents
Complete-machine weighing type chain plate scale Download PDFInfo
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- CN104614056A CN104614056A CN201510070007.5A CN201510070007A CN104614056A CN 104614056 A CN104614056 A CN 104614056A CN 201510070007 A CN201510070007 A CN 201510070007A CN 104614056 A CN104614056 A CN 104614056A
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Abstract
The invention relates to a complete-machine weighing type chain plate scale without a weighing frame of a conventional chain plate scale. The complete-machine weighing type chain plate scale comprises a machine frame, a movement mechanism, weighing sensors and bases. The machine frame comprises upper machine frame longitudinal beams, upper machine frame transverse beams, lower machine frame longitudinal beams, lower machine frame transverse beams and machine frame supporting columns, wherein the upper machine frame beams and the lower machine frame beams are connected through the machine frame supporting columns. The movement mechanism comprises a driving chain wheel, a driven chain wheel, a driving motor, a chain and chain plates, wherein the driving chain wheel and the driven chain wheel are installed on the two sides of the machine frame respectively, and the chain and the chain plates are installed on the driving chain wheel and the driven chain wheel. The weighing sensors are installed between the lower machine frame longitudinal beams and the bases, a press head at the upper end of each weighing sensor makes contact with a weighing mechanism connecting plate arranged at the bottom of the corresponding lower machine frame longitudinal beam, and a limiting device is further installed between each lower machine frame longitudinal beam and the corresponding base. The complete-machine weighing type chain plate scale can be widely applied to occasions of burdening and material conveying before grinding operation of a raw material grinding mill and a cement grinding mill of a cement plant.
Description
Technical field
The present invention relates to a kind of device of continuous measurement convey materials, particularly relate to a kind of Chain plate scales measuring convey materials.
Background technology
Chain plate scales is prepared burden before being mainly used in cement mill raw material grinding mill and cement grinding mill mill.The inventory passed through on metering transporting chain plate the inventory given with Central Control Room compare, and its difference is regulated by PID, changes carrier bar travelling speed, makes by the inventory on transporting chain plate consistent with set-point.Chain plate scales is widely used in metering and carries the occasion such as high-temperature material, abrasive materials because having the feature such as high temperature resistant, abrasion resistance is good.
Measuring accuracy is an important performance indexes of Chain plate scales.The reason affecting Chain plate scales measuring accuracy can be divided into two classes, the systematic error that the precision of the ingredients such as a class is tachogenerator, LOAD CELLS, metering comparison model and control software design and impact each other cause; The another kind of error being the stability of moving due to Chain plate scales device itself and causing, the weighing device generation impact in motion process of its parts such as intermediate plate, sprocket wheel is principal element, the result of impacting produces horizontal component on weighing support, have impact on weighing precision.A rear class problem is current Chain plate scales manufacture, use in the problem that effectively solves of ubiquity and failing for a long time.
The Chain plate scales that Present Domestic uses outward generally adopts and arrange floated or double lever type meausring apparatus in conveying frame, and meausring apparatus arranges weighing sensor in different forms.The Chinese utility model patent of notification number CN2082854U discloses a kind of Chain plate scales, and this utility model patent adopts edge of a knife supporting construction and arm of force mechanism in parallel, can eliminate position error, but cannot eliminate ballistic error and mechanism is too complicated; The Chinese utility model patent of notification number CN203745070U discloses a kind of heavy-duty chain plate scale weighing section bridge-type weighing device, this utility model patent is that scale frame is divided into two parts, located side by side LOAD CELLS on the crossbeam that two parts are adjacent, although this structure can offset a part of impulsive force, there is complex structure problem in limited use equally.The meausring apparatus of the Chain plate scales of above-mentioned two kinds of forms is all arrange weighing support among frame, when contacting with weighing support in carrier bar with chain drive-belt motion process, larger impulsive force can be produced by weighing device, cause that metering is inaccurate, flow rate fluctuation is large, weighing precision is low and the problem such as poor reliability, in use procedure, considerable influence can be produced to user.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly can eliminate the impact in motion process impulsive force of carrier bar and chain drive-belt, and precision is high, good reliability and the simple Chain plate scales of structure.
The present invention is the technical scheme solving the problems of the technologies described above employing, complete machine weighing type Chain plate scales comprises frame, motion, LOAD CELLS and base, described frame comprises longeron in frame, frame entablature, longeron under frame, on frame sill and connection frame, the frame pillar of underbeam, described motion comprises and is placed in drive sprocket on frame both sides and driven sprocket respectively, drive motor, be placed in the chain on drive sprocket and driven sprocket and carrier bar, described LOAD CELLS to be placed under frame between longeron and base, the pressure head of described LOAD CELLS upper end contacts with the weighing mechanism web joint be placed under frame below longeron, also stop means is settled between longeron and base under frame.
Further improved technical scheme of the present invention is, described LOAD CELLS is placed in the two ends of longeron under frame, the lower outer of frame pillar; The top of described stop means is provided with spacing preiection, is provided with the groove matched with described spacing preiection under described frame below longeron, and the gap between described spacing preiection and described groove is 2-3mm.
The beneficial effect of complete machine weighing type Chain plate scales of the present invention is embodied in, owing to adopting complete machine weighing type structure, LOAD CELLS is placed under frame, eliminate traditional weighing support, the greater impact power that the motion fundamentally eliminating carrier bar and chain when Chain plate scales works produces weighing support guide rail surface, eliminate because the horizontal component of generation when transporting chain plate runs is on the impact of Chain plate scales meausring apparatus, improve Chain plate scales precision, precision can reach 0.2%.Owing to optimizing LOAD CELLS installation position further, being provided with stop means, further increase the stability of meausring apparatus.The present invention weighs owing to adopting complete machine, has fully phased out weighing support, decreases Chain plate scales parts and structure is simple, is easy to operation and maintenance.
Accompanying drawing explanation
Fig. 1 is complete machine weighing type Chain plate scales front view of the present invention;
Fig. 2 is complete machine weighing type Chain plate scales side view of the present invention;
Fig. 3 is complete machine weighing type Chain plate scales the second embodiment front view of the present invention;
Fig. 4 is complete machine weighing type Chain plate scales meausring apparatus enlarged drawing of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further details.
Complete machine weighing type Chain plate scales as shown in Figure 1 and Figure 2, comprises frame 1, motion, LOAD CELLS 7 and base 9.The upper beam of described frame 1 comprises longeron 12 and two frame entablatures 13 in two frames, and in described two frames, longeron 12 and two frame entablatures 13 form the upper frame of described frame 1.The underbeam of frame 1 comprises longeron 15 and two frame sills 16 under two frames, and under described two frames, longeron 15 and two frame sills 16 form the underframe of described frame 1.In each described frame, the two ends of longeron 12 arrange frame pillar 14 respectively, and the lower end of frame pillar 14 connects one end of longeron 15 under described frame, forms frame 1 by the upper and lower framework of 4 frame pillar 14 connection frames.Frame generally adopts channel-section steel, by solder bond between beam, between beam and column, also can adopt riveted joint form.
The quality of complete machine weighing type Chain plate scales is comparatively large, must take into full account the one-piece construction of frame 1 and the installation position of stressing conditions and LOAD CELLS.Frame 1 can be rectangle framework, the length of the lower longeron of this frame should be greater than longeron, the length of lower longeron, generally according to deadweight and the selecting factors such as operating mode that work of Chain plate scales, generally descends the length of longeron longer when the deadweight of Chain plate scales is heavier and work operating mode is comparatively harsh; Frame 1 also can be trapezoidal framework, and upper longeron and lower longeron are parallel edges, and lower longeron is long limit, to improve the stressing conditions of frame 1.
Described motion comprises drive sprocket 17 and driven sprocket 18, described drive sprocket 17 and driven sprocket 18 are placed in the both sides of frame 1 respectively by drive chain wheel shaft and driven chain wheel shaft, chain 2 and carrier bar 3 are sleeved on drive sprocket 17 and driven sprocket 18, drive motor 4 connects drive chain wheel shaft by gear, and drives chain 2 and carrier bar 3 to move by drive sprocket 17.
As shown in Figure 3, Figure 4, LOAD CELLS 7 be placed under frame between longeron 15 and base 9, base 9 is fixed on the concrete basis on ground, on 4 LOAD CELLS 7 firm bankings 9.Weighing mechanism web joint 5 is settled below longeron 15 under frame, the pressure head 6 of described LOAD CELLS 7 upper end contacts with weighing mechanism web joint 5, when convey materials, weight of material acts on carrier bar 3, apply and be delivered in meausring apparatus web joint 5, pressure head 6 and LOAD CELLS 7 successively by carrier bar 3, chain 2, frame 1, the weight of carrying is converted to voltage signal and is transferred to Displaying Meter display gravimetric value by LOAD CELLS 7.
For the feature that the quality adapting to complete machine weighing type Chain plate scales is larger, performance index and the model of installation position under frame of the structure of frame, LOAD CELLS and LOAD CELLS be considered.Described LOAD CELLS 7 can be placed in the two ends of longeron 15 under frame, and a kind of embodiment described LOAD CELLS 7 is placed in immediately below the two ends of longeron 15 under frame, frame pillar 14 as shown in Figure 1; Another kind of embodiment as shown in Figure 3 described LOAD CELLS 7 is placed in the two ends of longeron 15 under frame, the lower outer of frame pillar 14, can improve the stability of frame, improve and eliminate the impact of impulsive force further.Also can adopt trapezoidal frame, the stability improving frame is also benefited.Also for ease of the feature that the quality of adaptation complete machine weighing type Chain plate scales is larger, compare LOAD CELLS and select.Pass through variety classes, the experimental study of the LOAD CELLS of various criterion and performance parameter, select German Shen gram (Schenck) company according to the compact RTN annular foil gauge LOAD CELLS of German PTB and international QIML standard production, or adopt the applicant Dahe Scale Co., Ltd., Yingkou according to the LFT type LOAD CELLS of same standard production, both performance index are identical, rated load is maximum 470 tons, weighing composition error is 0.2%, the feature that the quality of complete machine weighing type Chain plate scales is larger can be adapted to, this LOAD CELLS can the larger situation of adaptive device overall mass, there is again higher precision, LOAD CELLS itself has degree of precision, also the system accuracy of complete machine can be made.
Under frame, also settle stop means 8 between longeron 15 and base 9, longitudinal, the lateral attitude in restriction rack level direction are moved.Described stop means is fixed on base 9, the top of stop means is provided with spacing preiection 11, the groove matched with described spacing preiection 11 is provided with below longeron 15 under described frame, longitudinal, lateral clearance between described spacing preiection 11 and described groove are 2-3mm, preferred gap is 2mm, the stop means of this structure and size can meet accuracy requirement can make again installation simple, thus ensures weighing precision and the system accuracy of LOAD CELLS.
Claims (7)
1. complete machine weighing type Chain plate scales, comprise frame (1), motion, LOAD CELLS (7) and base (9), described frame (1) comprises longeron in frame (12), frame entablature (13), longeron (15) under frame, on frame sill (16) and connection frame, the frame pillar (14) of underbeam, described motion comprises and is placed in drive sprocket (17) on frame (1) both sides and driven sprocket (18) respectively, drive motor (4), be placed in the chain (2) on drive sprocket (17) and driven sprocket (18) and carrier bar (3), it is characterized in that: described LOAD CELLS (7) to be placed under frame between longeron (15) and base (9), the pressure head (6) of described LOAD CELLS (7) upper end contacts with the weighing mechanism web joint (5) be placed under frame below longeron (15), stop means (8) is also settled between longeron (15) and base (9) under frame.
2. complete machine weighing type Chain plate scales according to claim 1, is characterized in that: described LOAD CELLS (7) is placed in the two ends of longeron (15) under frame.
3. complete machine weighing type Chain plate scales according to claim 1, is characterized in that: described LOAD CELLS (7) is placed in immediately below the two ends of longeron (15) under frame, frame pillar (14).
4. complete machine weighing type Chain plate scales according to claim 1, is characterized in that: described LOAD CELLS (7) is placed in the two ends of longeron (15) under frame, the lower outer of frame pillar (14).
5. complete machine weighing type Chain plate scales according to claim 1, it is characterized in that: the top of described stop means (8) is provided with spacing preiection (11), under described frame, be provided with the groove matched with described spacing preiection (11) below longeron (15), the gap between described spacing preiection (11) and described groove is 2-3mm.
6. the complete machine weighing type Chain plate scales according to claim 1-5 any one, is characterized in that: described limit LOAD CELLS (7) is 4.
7. complete machine weighing type Chain plate scales according to claim 6, is characterized in that: the model of described LOAD CELLS (7) is LFT type, and rated load is maximum 470 tons, and weighing composition error is 0.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070007.5A CN104614056A (en) | 2015-02-10 | 2015-02-10 | Complete-machine weighing type chain plate scale |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070007.5A CN104614056A (en) | 2015-02-10 | 2015-02-10 | Complete-machine weighing type chain plate scale |
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| Publication Number | Publication Date |
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| CN104614056A true CN104614056A (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510070007.5A Pending CN104614056A (en) | 2015-02-10 | 2015-02-10 | Complete-machine weighing type chain plate scale |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112357459A (en) * | 2020-11-23 | 2021-02-12 | 中山市拓电电子科技有限公司 | Automatic conveying and weighing device for tobacco leaf packaging box |
| CN114353917A (en) * | 2020-07-30 | 2022-04-15 | 胡中大 | Assembly line packing platform of weighing with chain board is called |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2819183Y (en) * | 2005-09-01 | 2006-09-20 | 沈阳建筑大学 | Electronic belt scale |
| CN201259437Y (en) * | 2008-08-12 | 2009-06-17 | 营口大和衡器有限公司 | Chain plate scales |
| CN201622103U (en) * | 2010-03-16 | 2010-11-03 | 上海福丰电子有限公司 | Feed weighing system |
| CN202670687U (en) * | 2012-06-04 | 2013-01-16 | 深圳市科尔达电气设备有限公司 | Compressed air external sweeper of adhesive tape chain plate scale |
| CN102928060A (en) * | 2012-10-26 | 2013-02-13 | 梅特勒-托利多(常州)测量技术有限公司 | Annular limiting device of weighing apparatus |
| CN204439190U (en) * | 2015-02-10 | 2015-07-01 | 营口大和衡器有限公司 | Complete machine weighing type Chain plate scales |
-
2015
- 2015-02-10 CN CN201510070007.5A patent/CN104614056A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2819183Y (en) * | 2005-09-01 | 2006-09-20 | 沈阳建筑大学 | Electronic belt scale |
| CN201259437Y (en) * | 2008-08-12 | 2009-06-17 | 营口大和衡器有限公司 | Chain plate scales |
| CN201622103U (en) * | 2010-03-16 | 2010-11-03 | 上海福丰电子有限公司 | Feed weighing system |
| CN202670687U (en) * | 2012-06-04 | 2013-01-16 | 深圳市科尔达电气设备有限公司 | Compressed air external sweeper of adhesive tape chain plate scale |
| CN102928060A (en) * | 2012-10-26 | 2013-02-13 | 梅特勒-托利多(常州)测量技术有限公司 | Annular limiting device of weighing apparatus |
| CN204439190U (en) * | 2015-02-10 | 2015-07-01 | 营口大和衡器有限公司 | Complete machine weighing type Chain plate scales |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353917A (en) * | 2020-07-30 | 2022-04-15 | 胡中大 | Assembly line packing platform of weighing with chain board is called |
| CN112357459A (en) * | 2020-11-23 | 2021-02-12 | 中山市拓电电子科技有限公司 | Automatic conveying and weighing device for tobacco leaf packaging box |
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Application publication date: 20150513 |