CN101672688A - Weighing force transmission mechanism of hanging scale - Google Patents
Weighing force transmission mechanism of hanging scale Download PDFInfo
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- CN101672688A CN101672688A CN200910036112A CN200910036112A CN101672688A CN 101672688 A CN101672688 A CN 101672688A CN 200910036112 A CN200910036112 A CN 200910036112A CN 200910036112 A CN200910036112 A CN 200910036112A CN 101672688 A CN101672688 A CN 101672688A
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Abstract
The invention relates to a weighing force transmission mechanism of a hanging scale, wherein a scale seat is of a box shape with an open front end face, in-flanges are arranged at the periphery of thefront end face of the scale seat, and the upper part and the lower part at the same side of the scale seat are provided with an upper bracket and a lower bracket which extend outwards; one side of aweighing sensor is arranged at the bottom of the scale seat by a fixing bracket, the other side of the weighing sensor is connected with a transfer rack, the lower part of the transfer rack is connected with a suspension shaft provided with a ball head at the bottom, a reverse ball hole joint at the top of a suspension arm is connected with the ball head of the suspension shaft, the suspension shaft and a hanger rod are arranged at the same side of the scale seat, a limit threaded rod passes through the transfer rack and the lower bracket and is rotatably connected with an upper stop nut and alower stop nut, the lower stop nut is arranged between the transfer rack and the lower bracket, the upper stop nut is arranged at the upper part of the lower bracket, an overload protection distanceAlpha exists between the upper stop nut and the upper end face of the lower bracket, and an underload protection distance Beta exists between the lower stop nut and the bottom surface of the lower bracket. The invention has compact structure and reasonable stress, and can fully protect the weighing sensor.
Description
Technical field
The present invention relates to a kind of Weighing force transmission mechanism of hanging scale, belong to the electronic weighing technology field.
Background technology
Hanging scale mainly is made of suspension rod, scale body, suspension arm and web member, the scale body mainly is made of scale base, LOAD CELLS, Displaying Meter and guidance panel, printer etc., suspension rod is fixed on the top of scale base, LOAD CELLS is installed in the bottom of rectangle shaped as frame scale base inboard, and the connection force transmission shaft on the LOAD CELLS passes scale base and is connected with suspension arm.When weighing, when object is placed on the suspension arm, the weight of object makes the LOAD CELLS distortion by suspension arm, by the resistance bridge changes in resistance, gravimetric value is transformed into measurable simulating signal, simulating signal is through amplifying circuit amplification, low-pass filtering, converting analog electrical signal to digital signal by the A/D change-over circuit delivers to the CPU treatment circuit and carries out data processing, by price on the selection operation panel and trade name button, to measure the result shows by display, and get trade name, weight and price by printer, very easy to use.The scale base domestic demand of hanging scale is installed circuit printing plate, and the force transmission shaft that is connected with LOAD CELLS must pass scale base, and because of scale base is difficult for sealing, rainwater, dust, steam and harmful gas etc. all can have influence on the weighing accuracy and the mission life of hanging scale.Moreover the scale base of hanging scale is a rectangle shaped as frame structure, and parallelogramming deflection easily takes place under stress, and the scale base physical strength is not high, and influences the hanging scale measuring accuracy.Though moreover be provided with the overload protection distance between LOAD CELLS and the scale base; bear in weighing and surpass when the weight requirement is set; can not damage LOAD CELLS; this version makes guard space be difficult to control when producing, regulate; and the scale body is in carrying and placement and use, and is when force transmission shaft is subjected to upwards power, same; after LOAD CELLS is impacted, cause damage.
Summary of the invention
The purpose of this invention is to provide a kind of compact conformation, stressed rationally, can to LOAD CELLS load and underload two states under the Weighing force transmission mechanism of the hanging scale that can both protect.
The present invention is that the technical scheme that achieves the above object is: a kind of Weighing force transmission mechanism of hanging scale, comprise suspension rod and scale base, LOAD CELLS and suspension arm, suspension rod is fixed on scale base top, LOAD CELLS and suspension arm are installed in the bottom of scale base, it is characterized in that: described scale base is the box-like that front end face opens wide, the surrounding of scale base front end face has in-flanges, and the upper and lower that scale base is positioned at homonymy has outward extending upper bracket and lower carriage; Described LOAD CELLS one side is installed in the bottom of scale base by fixed mount; the opposite side of LOAD CELLS is connected with Change-over frame; the Change-over frame bottom is connected with the suspended axle that the bottom has bulb; the hole connector of falling the ball at suspension arm top is connected with the bulb of suspended axle; suspended axle and suspension rod are positioned at the homonymy of scale base; spacing screw rod passes Change-over frame and lower carriage and is connected with upper limit nut and lower position nut; lower position nut is between Change-over frame and lower carriage; the upper limit nut is positioned at lower carriage top; have the overload protection distance alpha between upper limit nut and the lower carriage upper surface, have underload guard space β between the bottom surface of lower position nut and lower carriage.
Wherein: described overload protection distance alpha and underload guard space β are between 0.1-5mm.
Described suspension rod is pipe, elliptical tube or rectangular tube, and the cross section of suspended axle is circular, ellipse or rectangle, and the axis of suspended axle is positioned at the inscribed circle of suspension rod, and the axis of suspended axle is with the parallel axes of suspension rod or overlap.
The pallet that is connected and composed by horizontal supporting plate and vertical supporting plate is installed in the bottom of described suspension arm, and the scale pan is placed on the pallet.
On the described and scale base calibrating protecting mechanism is installed also; calibrating device comprises the printed board support that the cross section takes the shape of the letter U; circuit printing plate; printed board fender bracket that the cross section takes the shape of the letter U and lead sealing mechanism; printed board erecting frame bottom is equipped with circuit printing plate; the printed board fender bracket is positioned at the outside of printed board erecting frame; and printed board fender bracket and printed board erecting frame are installed in the scale base bottom; and cover on the LOAD CELLS; the printed board fender bracket is provided with and the corresponding demarcation hole of calibration switch on the circuit printing plate; and lead sealing mechanism is installed on the printed board fender bracket, and gets lodged in place, demarcation hole.
Described printed board erecting frame covers on the LOAD CELLS, and by the bottom of screw retention at scale base, the printed board fender bracket is installed on the printed board erecting frame by screw, and printed board fender bracket both-side opening place also has the baffle plate that is higher than circuit printing plate.
Described lead sealing mechanism comprises lead sealing lid, lead sealing bolt and lead sealing paper, and the lead sealing lid is inserted on the printed board fender bracket, and is installed on the printed board erecting frame by the lead sealing bolt, and lead sealing paper is fitted on the lead sealing bolt.
Described lead sealing mechanism comprises lead sealing bolt, lead and steel wire, and two lead sealing bolts are installed in respectively on printed board erecting frame and the printed board fender bracket, and steel wire is through on the two lead sealing bolts and uses the lead involution.
The present invention is installed in the outside of scale base with LOAD CELLS, and respectively by fixed mount and Change-over frame power transmission, therefore the suspended axle that is connected with Change-over frame need not to pass the scale body, the simplification hermetically-sealed construction.The present invention adopts the scale body of box-like, not only makes the scale body have mechanism's intensity preferably, and is convenient to the installation, maintenance of each parts, compact conformation.The present invention is arranged on suspension rod and suspended axle the homonymy of scale body; and be connected on the spacing screw rod on the Change-over frame upper limit nut and lower position nut are installed; when the suspended axle that is installed in LOAD CELLS one side is bearing vertical direction when stressed; by the underload guard space β between the bottom surface of the overload protection distance alpha between the upper surface of upper limit nut and lower carriage and lower position nut and lower carriage; the restriction LOAD CELLS is loading and deflection when underload; impact can reduce LOAD CELLS; overload; distortion when underload; LOAD CELLS all has protection under loading and underload state; simple for structure, force structure is reasonable.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is Fig. 1 and I place structure for amplifying synoptic diagram.
Fig. 3 is one of blast structural representation of the present invention.
Fig. 4 is two of a blast structural representation of the present invention.
Wherein: 1-suspension rod, 2-scale base, 2-1-upper bracket; the 2-2-in-flanges, 2-3-lower carriage, 3-upper limit nut; the 4-fixed mount, 5-LOAD CELLS, 6-lower position nut; the 7-Change-over frame, the spacing screw rod of 8-, 9-suspended axle; the 9-1-bulb, 10-suspension arm, the 10-1-hole connector of falling the ball; the horizontal supporting plate of 10-2-, 10-3-indulges supporting plate, the 11-scale pan; 12-printed board fender bracket, 12-1-demarcates the hole, 13-printed board erecting frame; the 14-circuit printing plate, 14-1-calibration switch, 15-lead sealing lid; 16-lead sealing bolt; 17-lead sealing paper, 18-steel wire, 19-lead.
Embodiment
See shown in Fig. 1～4, the Weighing force transmission mechanism of hanging scale of the present invention, comprise suspension rod 1 and scale base 2, LOAD CELLS 5 and suspension arm 10, suspension rod 1 is fixed on scale base 2 tops, this suspension rod 1 is a pipe, elliptical tube or rectangular tube, LOAD CELLS 5 and suspension arm 10 are installed in the bottom of scale base 2, the box-like that scale base 2 opens wide for front end face, the surrounding of scale base 2 front end faces has in-flanges 2-2, the upper and lower of scale base 2 homonymies has outward extending upper bracket 2-1 and lower carriage 2-3, upper bracket 2-1 and lower carriage 2-3 all have stiffening plate, and suspension rod 1 is fixed on the upper bracket 2-1, or suspension rod 1 is fixed between scale base 2 and the upper bracket 2-1.See Fig. 1, shown in 2, LOAD CELLS 5 one sides of the present invention are installed in the bottom of scale base 2 by fixed mount 4, can connect by securing member, the opposite side of LOAD CELLS 5 is connected with Change-over frame 7, equally also connect by securing member, Change-over frame 7 bottoms are connected with the suspended axle 9 that the bottom has bulb 9-1, the cross section of suspended axle 9 is circular, ellipse or rectangle, the hole connector of falling the ball 10-1 at suspension arm 10 tops is connected with the bulb 9-1 of suspended axle 9, suspended axle 9 and suspension rod 1 are positioned at the homonymy of scale base 2, the axis of this suspended axle 9 is positioned at the inscribed circle of suspension rod 1, the parallel axes of the axis of suspended axle 9 and suspension rod 1 or overlap, the bottom of suspension arm 10 is equipped with the pallet that horizontal supporting plate 10-2 and vertical supporting plate 10-3 connect and compose, and the scale pan 11 is placed on the pallet.See shown in Fig. 1～4; spacing screw rod 8 of the present invention passes Change-over frame 7 and lower carriage 2-3 and is connected with upper limit nut 3 and lower position nut 6; lower position nut 6 is between Change-over frame 7 and lower carriage 2-3; upper limit nut 3 is positioned at the top of lower carriage 2-3; has the overload protection distance alpha between upper limit nut 3 and the lower carriage 2-3 upper surface; has underload guard space β between the bottom surface of lower position nut 6 and lower carriage 2-3; this overload protection distance alpha and underload guard space β are between 0.1-5mm; restriction LOAD CELLS 5 is loading and deflection when underload, can reduce LOAD CELLS 5 impacts; overload; distortion when underload.
See shown in 1～4; the present invention also is equipped with calibrating protecting mechanism on scale base 2; this calibrating protecting mechanism comprises the printed board erecting frame 13 that the cross section takes the shape of the letter U; circuit printing plate 14; the printed board fender bracket 12 that the cross section takes the shape of the letter U; printed board erecting frame 13 bottoms are equipped with circuit printing plate 14; printed board fender bracket 12 is positioned at the outside of printed board erecting frame 13; securing member is installed in printed board fender bracket 12 and printed board erecting frame 13 on the scale base 2 and covers on the LOAD CELLS 5; LOAD CELLS 5 is protected; printed board erecting frame 13 covers on the LOAD CELLS 5 and by the bottom of screw retention at scale base 2; and printed board fender bracket 12 is installed on the printed board erecting frame 13 by screw; printed board fender bracket 12 both sides also have the baffle plate that is higher than circuit printing plate 14; printed board fender bracket 12 is provided with the demarcation hole 12-1 corresponding with the calibration switch 14-1 of circuit printing plate 14, and lead sealing mechanism is installed on the printed board fender bracket 12 and gets lodged in and demarcates 12-1 place, hole.
See shown in Fig. 1,3; lead sealing of the present invention mechanism comprises lead sealing lid 15, lead sealing bolt 16 and lead sealing paper 17; lead sealing is covered 15 1 sides and is plugged on the printed board fender bracket 12; lead sealing bolt 16 passes through hole on lead sealing lid 15 and the printed board fender bracket 12 and is installed on the printed board erecting frame 13 on the corresponding double-screw bolt; lead sealing paper 17 is fitted on the lead sealing bolt 16, makes the lead sealing lid 15 12-1 places, demarcation hole that get lodged on the printed board fender bracket 12.Timing signal destroys lead sealing paper 17 earlier, pulls down lead sealing bolt 16 then, and lead sealing lid 15 is moved to a side, puts in instrument and demarcates hole 12-1, and the calibration switch 14-1 on the circuit printing plate 14 is operated.
See shown in Figure 4; lead sealing of the present invention mechanism comprises lead sealing bolt 16, lead 19 and steel wire 18; lead sealing bolt 16 passes through hole on the printed board fender bracket 12 and is installed on the printed board erecting frame 13 on the corresponding double-screw bolt; and the demarcation hole 12-1 on the printed board fender bracket 12 is a screw; another lead sealing bolt 16 is installed in the demarcation hole 12-1 on the printed board fender bracket 12, and steel wire 18 is through on the two lead sealing bolts 16 and uses lead 19 involutions.Timing signal destroys steel wire 18, pulls down lead sealing bolt 16 then, puts in instrument and demarcates hole 12-1, and the calibration switch 14-1 on the circuit printing plate 14 is operated.
Claims (8)
1, a kind of Weighing force transmission mechanism of hanging scale, comprise suspension rod and scale base, LOAD CELLS and suspension arm, suspension rod is fixed on scale base top, LOAD CELLS and suspension arm are installed in the bottom of scale base, it is characterized in that: described scale base is the box-like that front end face opens wide, the surrounding of scale base front end face has in-flanges, and the upper and lower that scale base is positioned at homonymy has outward extending upper bracket and lower carriage; Described LOAD CELLS one side is installed in the bottom of scale base by fixed mount; the opposite side of LOAD CELLS is connected with Change-over frame; the Change-over frame bottom is connected with the suspended axle that the bottom has bulb; the hole connector of falling the ball at suspension arm top is connected with the bulb of suspended axle; suspended axle and suspension rod are positioned at the homonymy of scale base; spacing screw rod passes Change-over frame and lower carriage and is connected with upper limit nut and lower position nut; lower position nut is between Change-over frame and lower carriage; the upper limit nut is positioned at lower carriage top; have the overload protection distance alpha between upper limit nut and the lower carriage upper surface, have underload guard space β between the bottom surface of lower position nut and lower carriage.
2, the Weighing force transmission mechanism of hanging scale according to claim 1 is characterized in that: described overload protection distance alpha and underload guard space β are between 0.1-5mm.
3, the Weighing force transmission mechanism of hanging scale according to claim 1, it is characterized in that: described suspension rod is pipe, elliptical tube or rectangular tube, the cross section of suspended axle is circle, ellipse or rectangle, and the axis of suspended axle is positioned at the inscribed circle of suspension rod, and the axis of suspended axle is with the parallel axes of suspension rod or overlap.
4, the Weighing force transmission mechanism of hanging scale according to claim 1 is characterized in that: the pallet that is connected and composed by horizontal supporting plate and vertical supporting plate is installed in the bottom of described suspension arm, and the scale pan is placed on the pallet.
5; the Weighing force transmission mechanism of hanging scale according to claim 1; it is characterized in that: on the described and scale base calibrating protecting mechanism is installed also; calibrating device comprises the printed board support that the cross section takes the shape of the letter U; circuit printing plate; printed board fender bracket that the cross section takes the shape of the letter U and lead sealing mechanism; printed board erecting frame bottom is equipped with circuit printing plate; the printed board fender bracket is positioned at the outside of printed board erecting frame; and printed board fender bracket and printed board erecting frame are installed in the scale base bottom; and cover on the LOAD CELLS; the printed board fender bracket is provided with and the corresponding demarcation hole of calibration switch on the circuit printing plate; and lead sealing mechanism is installed on the printed board fender bracket, and gets lodged in place, demarcation hole.
6, the Weighing force transmission mechanism of hanging scale according to claim 5; it is characterized in that: described printed board erecting frame covers on the LOAD CELLS; and by the bottom of screw retention at scale base; the printed board fender bracket is installed on the printed board erecting frame by screw, and printed board fender bracket both-side opening place also has the baffle plate that is higher than circuit printing plate.
7, the Weighing force transmission mechanism of hanging scale according to claim 5; it is characterized in that: described lead sealing mechanism comprises lead sealing lid, lead sealing bolt and lead sealing paper; the lead sealing lid is inserted on the printed board fender bracket; and be installed on the printed board erecting frame by the lead sealing bolt, lead sealing paper is fitted on the lead sealing bolt.
8, the Weighing force transmission mechanism of hanging scale according to claim 5; it is characterized in that: described lead sealing mechanism comprises lead sealing bolt, lead and steel wire; two lead sealing bolts are installed in respectively on printed board erecting frame and the printed board fender bracket, and steel wire is through on the two lead sealing bolts and uses the lead involution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100361121A CN101672688B (en) | 2009-09-28 | 2009-09-28 | Weighing force transmission mechanism of hanging scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100361121A CN101672688B (en) | 2009-09-28 | 2009-09-28 | Weighing force transmission mechanism of hanging scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672688A true CN101672688A (en) | 2010-03-17 |
| CN101672688B CN101672688B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100361121A Active CN101672688B (en) | 2009-09-28 | 2009-09-28 | Weighing force transmission mechanism of hanging scale |
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| CN (1) | CN101672688B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840484A (en) * | 2017-04-11 | 2017-06-13 | 浙江维思无线网络技术有限公司 | High voltage transmission line hanging plate weighing sensor |
| CN109115315A (en) * | 2018-08-10 | 2019-01-01 | 台衡精密测控(昆山)股份有限公司 | Weighing sensor test equipment |
| CN109533685A (en) * | 2018-12-27 | 2019-03-29 | 华新水泥股份有限公司 | Cement tank body online weighing storehouse self-adaptive regulating |
| KR101986940B1 (en) * | 2018-02-21 | 2019-06-10 | 주식회사 세미코 | A hanger typed electronic scale |
| CN110553704A (en) * | 2018-05-31 | 2019-12-10 | 梅特勒-托利多(常州)测量技术有限公司 | Hanging scale and weighing structure and weighing method thereof |
| CN113465718A (en) * | 2021-09-03 | 2021-10-01 | 江苏卓铭电子科技有限公司 | Calibration protection mechanism of electronic scale and electronic scale |
| CN114370920A (en) * | 2022-01-11 | 2022-04-19 | 碧彩(上海)衡器技术有限公司 | Suspension type weighing equipment |
| WO2022105712A1 (en) * | 2020-11-17 | 2022-05-27 | Mettler-Toledo (Changzhou) Measurement Technology Ltd. | Hanging scale sensor apparatus and a hanging scale |
| CN115406801A (en) * | 2022-08-30 | 2022-11-29 | 烟台卓明仪器设备有限公司 | Absolute density measuring device and using method thereof |
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| DE3019284A1 (en) * | 1980-05-21 | 1981-11-26 | Maatschappij van Berkel's, Patent N.V., Rotterdam | Suspension balance weighing machine - has frictional suspension damping coupling giving short readiness time in presence of vibrations and movement |
| DE3904084A1 (en) * | 1989-02-11 | 1990-08-16 | Bizerba Werke Kraut Kg Wilh | Electronic, price-calculating suspension balance |
| CN2465159Y (en) * | 2001-01-21 | 2001-12-12 | 上海寺冈电子有限公司 | Electronic hanging balance |
| CN2898785Y (en) * | 2005-12-29 | 2007-05-09 | 管学忠 | Protector against overload for electronic balance sensor |
| CN201003972Y (en) * | 2006-12-28 | 2008-01-09 | 葛府治 | Sensor special for hanging balance |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840484A (en) * | 2017-04-11 | 2017-06-13 | 浙江维思无线网络技术有限公司 | High voltage transmission line hanging plate weighing sensor |
| CN106840484B (en) * | 2017-04-11 | 2022-08-23 | 浙江维思无线网络技术有限公司 | Weighing sensor for high-voltage transmission line hanging plate |
| KR101986940B1 (en) * | 2018-02-21 | 2019-06-10 | 주식회사 세미코 | A hanger typed electronic scale |
| CN110553704A (en) * | 2018-05-31 | 2019-12-10 | 梅特勒-托利多(常州)测量技术有限公司 | Hanging scale and weighing structure and weighing method thereof |
| CN109115315A (en) * | 2018-08-10 | 2019-01-01 | 台衡精密测控(昆山)股份有限公司 | Weighing sensor test equipment |
| CN109115315B (en) * | 2018-08-10 | 2023-09-29 | 台衡精密测控(昆山)股份有限公司 | Weighing sensor test equipment |
| CN109533685A (en) * | 2018-12-27 | 2019-03-29 | 华新水泥股份有限公司 | Cement tank body online weighing storehouse self-adaptive regulating |
| WO2022105712A1 (en) * | 2020-11-17 | 2022-05-27 | Mettler-Toledo (Changzhou) Measurement Technology Ltd. | Hanging scale sensor apparatus and a hanging scale |
| EP4248180A4 (en) * | 2020-11-17 | 2024-05-01 | Mettler Toledo (Changzhou) Measurement Technology Ltd. | Hanging scale sensor apparatus and a hanging scale |
| CN113465718A (en) * | 2021-09-03 | 2021-10-01 | 江苏卓铭电子科技有限公司 | Calibration protection mechanism of electronic scale and electronic scale |
| CN113465718B (en) * | 2021-09-03 | 2021-11-02 | 江苏卓铭电子科技有限公司 | Calibration protection mechanism of electronic scale and electronic scale |
| CN114370920A (en) * | 2022-01-11 | 2022-04-19 | 碧彩(上海)衡器技术有限公司 | Suspension type weighing equipment |
| CN115406801A (en) * | 2022-08-30 | 2022-11-29 | 烟台卓明仪器设备有限公司 | Absolute density measuring device and using method thereof |
Also Published As
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| CN101672688B (en) | 2010-12-29 |
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