CN201508225U

CN201508225U - Electronic belt scale with direct-loading scale frame

Info

Publication number: CN201508225U
Application number: CN200920308334XU
Authority: CN
Inventors: 肖建新
Original assignee: CHANGSHA AOTUO AUTOMATION TECHNOLOGY CO LTD
Current assignee: CHANGSHA AOTUO AUTOMATION TECHNOLOGY CO LTD
Priority date: 2009-08-19
Filing date: 2009-08-19
Publication date: 2010-06-16
Anticipated expiration: 2019-08-19

Abstract

The utility model discloses an electronic belt scale with a direct-loading scale frame, which comprises a belt conveyor and a weighing mechanism, wherein the weighing mechanism is installed on the belt conveyor, the weighing mechanism comprises a scale frame and a weighing sensor group, the weighing sensor group is fixed on a frame of the belt conveyor, the scale frame is placed above the weighing sensor group, and the weighing sensor group is provided with more than two groups of weighing supporting rollers. The electronic belt scale has the advantages of high measuring accuracy, good stability, simple structure and convenient installation, debugging and maintenance.

Description

Belted electronic balance with direct bearing type scale frame

Technical field

The utility model relates to a kind of belted electronic balance, in particular for the belted electronic balance of the direct bearing type scale of having of the continuous dynamic measurement of bulk cargo frame.

Background technology

Belted electronic balance is that band conveyor transports a kind of metering outfit of in the process of material material being weighed continuously.The scale frame of present belted electronic balance both domestic and external mainly comprises various dissimilar scale framves such as direct load-bearing single mount roller, full suspension, double lever, simple lever, but these scale frame ubiquity performance instabilities, the metering numerical fluctuations is big, poor repeatability, the each demarcation differs greatly, and can not satisfy measuring requirement.Wherein single lever type scale frame is because of the anti-bias load ability, and degree of accuracy is low, uses fewer and feweri; Cantilevered scale frame only is confined to the part Weighing feeder and uses, and use amount seldom; Parallel bars steelyard shelf structure complexity, the scale body is huge; Directly the characteristics of load-bearing single-idler receptor are that the weighing carrier roller group directly links to each other with LOAD CELLS, and its scale shelf structure is simple, easy for installation; But because it is that the weighing carrier roller group directly links to each other with LOAD CELLS, make that the length of effectively weighing of scale frame is too short, might measure inaccurate during mass transport or measure less than, it is big to cause measuring numerical fluctuations, poor repeatability has had a strong impact on measuring accuracy.

The utility model content

The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of measuring accuracy height, good stability, simple in structure and Installation and Debugging and the belted electronic balance with direct bearing type scale frame easy to maintenance are provided.

For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: a kind of belted electronic balance with direct bearing type scale frame, comprise band conveyor and the Weighing mechanism that is installed on the band conveyor, described Weighing mechanism comprises scale frame and LOAD CELLS group, described LOAD CELLS group is fixed on the frame of band conveyor, described scale frame is positioned over the top of LOAD CELLS group, is equiped with two groups of above weighing carrier rollers on the described scale frame.

As to further improvement of the utility model, described scale frame is an integral frame.

As to further improvement of the utility model, be provided with the LOAD CELLS pressure head between described scale frame and the described LOAD CELLS group.

As to further improvement of the utility model, described LOAD CELLS group comprises LOAD CELLS mount pad and four LOAD CELLS, described LOAD CELLS is installed on the frame by the LOAD CELLS mount pad, and described four LOAD CELLS are arranged at the below at four jiaos of places of described scale frame respectively by the LOAD CELLS pressure head.

As to further improvement of the utility model, described LOAD CELLS is the bellows-type sensor.

As to further improvement of the utility model; the top of described LOAD CELLS is provided with the LOAD CELLS over cap; the below of described LOAD CELLS is provided with LOAD CELLS protection seat, and described LOAD CELLS over cap and LOAD CELLS protection seat all are fixed on the frame.

Compared to existing technology, the utlity model has following beneficial effect:

1, the utlity model has the belted electronic balance of direct bearing type scale frame, its simple in structure, good stability, wherein the scale frame directly is positioned on the LOAD CELLS, the scale frame is provided with two groups of above weighing carrier rollers, make this scale frame be similar to the static weighing platform, the extended length of effectively weighing of scale frame has increased the stability of belt transportation, has improved measuring accuracy.

2, the utlity model has the belted electronic balance of direct bearing type scale frame, the scale frame is designed to the integral frame structure, its four jiaos are fixed on the LOAD CELLS by the LOAD CELLS pressure head, this monoblock type scale frame does not have fulcrum, no gudgeon, intermediate members such as inelastic component, the influence that reduces during use or avoided power in transmittance process, to produce because of these intermediate members, can guarantee LOAD CELLS, the level of scale frame and LOAD CELLS are stressed evenly, increased the symmetry of scale frame, stability and balance, thereby be not subjected to the material unbalance loading, the influence of belt deviation and side force, guaranteed that this weighing-appliance has higher measuring accuracy, performance is more stable.

3, the utlity model has the belted electronic balance of direct bearing type scale frame, its LOAD CELLS adopts the bellows-type sensor, and this kind sensor is not subjected to the influence of various side forces, and measuring accuracy is further improved; The sensor protection lid is set above LOAD CELLS; the below is provided with the sensor protection seat; using, can prevent that LOAD CELLS is damaged by collision when carrying; also can avoid material and dust to drop on LOAD CELLS and the accuracy and the sensitivity of influence metering, can prolong the serviceable life of LOAD CELLS.When Installation and Debugging the utility model, only need belted electronic balance integral installation level, do not need carrying roller etc. is carried out the backguy smoothing again, also do not need LOAD CELLS is carried out loaded down with trivial details balancing, Installation and Debugging are simpler more, convenient, reliable than existing belted electronic balance.

Description of drawings

Fig. 1 is the one-piece construction synoptic diagram after the utility model takes away belt;

Fig. 2 is the plan structure synoptic diagram after the utility model takes away belt;

Fig. 3 is the structure for amplifying synoptic diagram of B place scale frame among Fig. 2;

Fig. 4 is the sectional structure synoptic diagram at A-A place among Fig. 3.

Marginal data

1, frame bearing; 2, leather belt deviating-proof device; 3, LOAD CELLS over cap; 4, drive motor; 5, drive roll; 6, frame; 7, operation carrying roller; 8, LOAD CELLS; 9, LOAD CELLS mount pad; 10, scale frame; 11, weighing carrier roller; 12, driven cylinder; 13, belt stretcher; 14, LOAD CELLS pressure head; 15, LOAD CELLS protection seat; 16, band conveyor.

Embodiment

Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, belted electronic balance with direct bearing type scale frame of the present utility model, comprise band conveyor 16 and the Weighing mechanism that is installed on the band conveyor 16, this Weighing mechanism comprises scale frame 10 and LOAD CELLS group, this LOAD CELLS group is fixed on the frame 6 of band conveyor 16, scale frame 10 is positioned over the top of LOAD CELLS group, is equiped with two groups of above weighing carrier rollers 11 on the scale frame 10.Scale frame 10 and LOAD CELLS group all are positioned at the below of belt on the band conveyor 16.

Band conveyor 16 comprises horizontally disposed shaped as frame frame 6, and an end of frame 6 is equiped with drive roll 5 and drive motor 4, and the output terminal of drive motor 4 links to each other with the rotating shaft of drive roll 5.The other end of frame 6 is equiped with driven cylinder 12 and belt stretcher 13, and belt stretcher 13 is connected with driven cylinder 12, can adjust the rate of tension of belt easily.The upper level of shaped as frame frame 6 be provided with many operation carrying rollers 7, frame 6 bottoms are equiped with frame bearing 1 and leather belt deviating-proof device 2, can prevent belt in transportation because of material unbalance loading sideslip.

In the present embodiment, scale frame 10 is selected the cold-rolled steel sheet bending for use, is welded into the integral frame structure, is evenly equipped with four groups of horizontally disposed weighing carrier rollers 11 at an upper portion thereof, makes this scale frame 10 be similar to the static weighing platform, the length of effectively weighing of the scale frame 10 that can extend.The LOAD CELLS group comprises four LOAD CELLS 8 and two LOAD CELLS mount pads 9, two LOAD CELLS mount pads 9 are installed in respectively on the biside plate of frame 6, LOAD CELLS 8 be installed on the LOAD CELLS mount pad 9 and be positioned at 10 4 jiaos on scale frame under.Be provided with LOAD CELLS pressure head 14 between scale frame 10 and the LOAD CELLS 8, four jiaos of scale frame 10 directly are fixed on four LOAD CELLS 8 by LOAD CELLS pressure head 14, whole scale frame 10 is suspended on the conveyor frame 6 and directly entirely to be connected with LOAD CELLS 8, there are not intermediate members such as fulcrum, no gudgeon, inelastic component on the scale frame of this monolithic construction, simple in structure, the influence that can reduce or avoid power in transmittance process, to produce during use because of these intermediate members, guarantee the accuracy of belted electronic balance metering, performance is more stable.LOAD CELLS 8 is preferably the bellows-type sensor, and this kind sensor is not subjected to the influence of various side forces, and measuring accuracy is further improved.Above LOAD CELLS 8, be provided with LOAD CELLS over cap 3 (only having drawn one of them among the figure), can avoid material and dust etc. to drop on LOAD CELLS 8; LOAD CELLS protection seat 15 is set below LOAD CELLS 8, is using, can prevent when carrying LOAD CELLS 8 quilt collisions, damaging, accuracy and sensitivity that influence is measured have prolonged the serviceable life of LOAD CELLS 8 simultaneously.

Belted electronic balance of the present utility model is guaranteed the long-time stability of its metering performance and use by four surface levels when design, processing and Installation and Debugging: when 1) installing, guarantee to carry frame 6 level unanimities; 2) the installation fundamental plane level unanimity of four LOAD CELLS 8; 3) scale frame 10 is consistent with the stress surface level of LOAD CELLS 8; 4) height level of many group weighing carrier rollers 11, operation carrying roller 7 levels.Simultaneously relevant parts and tolerance on fit thereof have been carried out strict control.Like this with final assembly good after, can guarantee that LOAD CELLS 8, weighing carrier roller 11 and scale frame 10 are in horizontality, can guarantee that four LOAD CELLS 8 are stressed evenly.When the belted electronic balance Installation and Debugging, only need belted electronic balance integral installation level, do not need again weighing carrier roller 11 and operation carrying roller 7 grades to be carried out the backguy smoothing, also do not need LOAD CELLS 8 is carried out loaded down with trivial details balancing, Installation and Debugging are simpler more, convenient, reliable than existing belted electronic balance.

The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art, also should be considered as protection domain of the present utility model in the some improvements and modifications that do not break away under the utility model principle prerequisite.

Claims

1. belted electronic balance with direct bearing type scale frame, comprise band conveyor (16) and be installed on Weighing mechanism on the band conveyor (16), it is characterized in that: described Weighing mechanism comprises scale frame (10) and LOAD CELLS group, described LOAD CELLS group is fixed on the frame (6) of described band conveyor (16), described scale frame (10) is positioned over the top of LOAD CELLS group, is equiped with two groups of above weighing carrier rollers (11) on the described scale frame (10).

2. the belted electronic balance with direct bearing type scale frame according to claim 1 is characterized in that: described scale frame (10) is an integral frame.

3. the belted electronic balance with direct bearing type scale frame according to claim 1 and 2 is characterized in that: be provided with LOAD CELLS pressure head (14) between described scale frame (10) and the described LOAD CELLS group.

4. the belted electronic balance with direct bearing type scale frame according to claim 1 and 2, it is characterized in that: described LOAD CELLS group comprises LOAD CELLS mount pad (9) and four LOAD CELLS (8), described LOAD CELLS (8) is installed on the frame (6) by LOAD CELLS mount pad (9), described LOAD CELLS (8) lay respectively at (10) four jiaos on described scale frame under.

5. the belted electronic balance with direct bearing type scale frame according to claim 3, it is characterized in that: described LOAD CELLS group comprises LOAD CELLS mount pad (9) and four LOAD CELLS (8), described LOAD CELLS (8) is installed on the frame (6) by LOAD CELLS mount pad (9), and described four LOAD CELLS (8) are arranged at the below at (10) four jiaos of places of described scale frame respectively by LOAD CELLS pressure head (14).

6. the belted electronic balance with direct bearing type scale frame according to claim 4 is characterized in that: described LOAD CELLS (8) is the bellows-type sensor.

7. the belted electronic balance with direct bearing type scale frame according to claim 5 is characterized in that: described LOAD CELLS (8) is the bellows-type sensor.

8. the belted electronic balance with direct bearing type scale frame according to claim 4; it is characterized in that: the top of described LOAD CELLS (8) is provided with LOAD CELLS over cap (3); the below of described LOAD CELLS (8) is provided with LOAD CELLS protection seat (15), and described LOAD CELLS over cap (3) all is fixed on the frame (6) with LOAD CELLS protection seat (15).

9. the belted electronic balance with direct bearing type scale frame according to claim 7; it is characterized in that: the top of described LOAD CELLS (8) is provided with LOAD CELLS over cap (3); the below of described LOAD CELLS (8) is provided with LOAD CELLS protection seat (15), and described LOAD CELLS over cap (3) all is fixed on the frame (6) with LOAD CELLS protection seat (15).