JP2020034364A - Vehicle weighing device - Google Patents

Vehicle weighing device Download PDF

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JP2020034364A
JP2020034364A JP2018160006A JP2018160006A JP2020034364A JP 2020034364 A JP2020034364 A JP 2020034364A JP 2018160006 A JP2018160006 A JP 2018160006A JP 2018160006 A JP2018160006 A JP 2018160006A JP 2020034364 A JP2020034364 A JP 2020034364A
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vehicle
suspension
load
weighing device
loading platform
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石田 仁
Hitoshi Ishida
仁 石田
俊哉 武井
Toshiya Takei
俊哉 武井
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Penta Ocean Construction Co Ltd
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Penta Ocean Construction Co Ltd
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Abstract

To provide a vehicle weighing device which is capable of being installed on the unpaved ground and making the entire device compact and low-profile.SOLUTION: A vehicle weighing device 2 includes: supporting members 4, 4 arranged on both sides of the ground 3; a plurality of suspension measurement units 5,5 ... suspended from each supporting member; and a loading platform 6 suspended via a plurality of suspension measurement units 5,5 .... The suspension measurement unit 5 includes lifting means 31 for lifting a suspension member 30. The suspension member 30 is lowered and a vehicle 1 is made to enter the loading platform 6 in a state of grounding the loading platform 6.SELECTED DRAWING: Figure 2

Description

本発明は、ダンプトラック等の車両に積載された積載物の重量を含む車両重量を計測するための車両用計量装置に関する。   The present invention relates to a vehicle weighing device for measuring a vehicle weight including a weight of a load loaded on a vehicle such as a dump truck.

ダンプトラックによる土砂運搬等の車両による輸送においては、過積載を原因とする事故や道路の損傷が社会問題化していることから、積載物の重量を厳しく管理する必要がある。   In the transportation by vehicles such as earth and sand transportation by dump trucks, since the accidents due to overloading and damage to roads have become a social problem, it is necessary to strictly control the weight of the load.

そのため、大型ダンプトラック等では、車両自体に積載量を自動的に計量する計量装置の設置が義務付けられているが、この種の車両に設置される計量装置は、精度が低くあまり活用できていないのが現状であった。   For this reason, in large dump trucks, etc., it is mandatory to install a weighing device that automatically weighs the load on the vehicle itself, but the weighing device installed in this type of vehicle has low accuracy and can not be used very much That was the current situation.

そこで、土砂運搬を必要とする工事現場等では、現場にトラックスケール等の車両用計量装置を設置し、当該工事現場の積込み時において、ダンプトラック等の車両の積載重量を車両用計測装置によって計測し、厳密に管理する場合が多くなっている。   Therefore, at construction sites that require transportation of earth and sand, vehicle weighing devices such as truck scales are installed at the site, and the loading weight of vehicles such as dump trucks is measured by the vehicle measuring device when loading at the construction site. In many cases, they are strictly managed.

この種のトラックスケール等の車両用計量装置は、例えば、図6に示すように、地面100に形成された鉄筋コンクリート造のピット101内に梁材(図示せず)を配置するとともに、ピット101内に設置したロードセル102,102を介してダンプトラック103が載置される鋼台104を支持させるようにした定置式のものが一般に広く知られている(例えば、特許文献1を参照)。   For example, as shown in FIG. 6, a vehicle weighing device such as a truck scale arranges a beam (not shown) in a reinforced concrete pit 101 formed on the ground 100 and, as shown in FIG. In general, a stationary type in which a steel table 104 on which a dump truck 103 is placed is supported via load cells 102, 102 installed in a vehicle is widely known (for example, see Patent Document 1).

一方、この種のトラックスケール等の車両用計量装置には、平坦な地表面に設置できるようにした可搬式のものも知られている(例えば、特許文献2を参照)。   On the other hand, as a vehicle weighing device of this type such as a truck scale, a portable weighing device that can be installed on a flat ground surface is also known (for example, see Patent Document 2).

この可搬式の車両用計量装置は、平坦な地表部に配置されたロードセルを介して支持された支持フレームと、支持フレームに支持された鋼台と、鋼台の前後に配置されたスロープとを備え、スロープを通して車両を鋼台上に誘導し、鋼台上に載置された車両の荷重をロードセルによって計測するようになっている。   This portable vehicle weighing device includes a support frame supported via a load cell disposed on a flat ground surface, a steel table supported by the support frame, and a slope disposed before and after the steel table. The vehicle is guided on a steel table through a slope, and the load of the vehicle placed on the steel table is measured by a load cell.

特開2006−177722号公報JP 2006-177722 A 特開平10−148565号公報JP-A-10-148565

しかしながら、上述の如き従来の定置式の車両用計量装置は、荷重を計測するロードセルの反力を確保する必要があり、鉄筋コンクリート造の安定したピットを設けるため、車両用計量装置の設置個所が限定されるという問題があった。   However, in the conventional stationary measuring device for vehicles as described above, it is necessary to secure the reaction force of the load cell for measuring the load, and a stable pit made of reinforced concrete is provided. There was a problem that was.

また、従来の定置式の車両用計量装置は、重量の嵩む鋼台及びダンプトラックを支持する必要があることから、ピット内に設置する梁が大型化され、その分、費用が嵩むという問題があった。   In addition, the conventional stationary type vehicle weighing device needs to support a heavy steel stand and a dump truck, so the beam installed in the pit is enlarged, and the cost is increased accordingly. there were.

一方、従来の可搬式の車両用計量装置は、地盤の沈下を許容できないことから、コンクリート等で舗装された平坦な場所に設置する必要があり、工事現場等の未舗装部分に設置することができないという問題があった。   On the other hand, conventional portable weighing devices for vehicles must be installed on a flat place paved with concrete, etc., because land subsidence cannot be tolerated, and can be installed on unpaved parts such as construction sites. There was a problem that it was not possible.

また、従来の可搬式の車両用計量装置は、ロードセルに鋼台を支持させる構造であるため、装置全体の高さが嵩み、その分、支持フレームや車両を鋼台に誘導するためのスロープも大型化し、運搬、設置に労力を要するという問題があった。   In addition, the conventional portable weighing device for a vehicle has a structure in which a steel table is supported by a load cell, so that the height of the entire device is increased, and accordingly, a support frame and a slope for guiding the vehicle to the steel table are increased. However, there is a problem that the size of the apparatus is increased and labor is required for transportation and installation.

さらに、従来の車両用計量装置は、定置式、可搬式を問わず、ロードセル上に鋼台を支持させる構造であるため、鋼台にダンプトラック等の車両を乗り入れる際、ロードセルに移動に伴う衝撃及び大きな動荷重が作用し、計量誤差の原因になるという問題があった。   Furthermore, the conventional vehicle weighing device, whether stationary or portable, has a structure in which a steel table is supported on a load cell. Also, there is a problem that a large dynamic load acts and causes a measurement error.

更にまた、従来の車両用計量装置は、鋼台にダンプトラック等の車両を乗り入れる際の動荷重を許容できるように容量の大きなロードセルを必要とするとともに、それに合わせてロードセルを支持する強固な構造を必要とし、ロードセルの精度が低くならざるを得ないとともに、装置が大型化せざるを得ないという問題があった。   Furthermore, the conventional vehicle weighing device requires a load cell having a large capacity so as to allow a dynamic load when a vehicle such as a dump truck is loaded on a steel table, and has a strong structure that supports the load cell accordingly. However, there is a problem that the accuracy of the load cell must be reduced and the size of the apparatus must be increased.

そこで、本発明は、このような従来の問題に鑑み、未舗装の地面に設置可能で、装置全体の小型・低背化が可能な車両用計量装置の提供を目的としてなされたものである。   In view of such a conventional problem, the present invention has been made to provide a vehicle weighing device that can be installed on unpaved ground and that can reduce the size and height of the entire device.

上述の如き従来の問題を解決するための請求項1に記載の発明の特徴は、車両の重量を計測する車両用計量装置において、地面の両側部に配置される支持用部材と、該各支持用部材より懸下された複数の懸下式計測ユニットと、該複数の懸下式計測ユニットを介して前記両支持用部材に支持された載荷台とを備え、前記懸下式計測ユニットは、前記載荷台を支持させる懸下部材と、該懸下部材に作用する荷重を計測する荷重計測手段と、前記懸下部材を昇降させる昇降手段とを備え、前記懸下部材を下降させ、前記載荷台を着底させた状態で前記車両が進入できるようにしたことにある。   The feature of the invention according to claim 1 for solving the conventional problem as described above is that in a vehicle weighing device for measuring the weight of a vehicle, supporting members disposed on both sides of the ground, A plurality of suspension-type measuring units suspended from the member, and a loading platform supported by the two supporting members via the plurality of suspension-type measurement units, the suspension-type measurement unit, A suspension member for supporting the carrier, load measuring means for measuring a load acting on the suspension member, and elevating means for elevating the suspension member, lowering the suspension member, That is, the vehicle is allowed to enter with the cargo bed landing.

請求項2に記載の発明の特徴は、請求項1の構成に加え、前記各懸下式計測ユニットは、前記荷重計測手段のレベルを調節するレベル調整手段を備えたことにある。   According to a second aspect of the present invention, in addition to the configuration of the first aspect, each of the suspension-type measuring units includes a level adjusting unit that adjusts a level of the load measuring unit.

請求項3に記載の発明の特徴は、請求項1又は2の構成に加え、記載荷台は、前記懸下式計測ユニットに両端が支持された支持用部材間方向に向けた複数の支持梁材と、該支持梁材上に架け渡された載荷板とを備えていることにある。   According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the loading platform includes a plurality of support beam members oriented in a direction between supporting members whose both ends are supported by the suspension-type measuring unit. And a load plate spanned over the support beam.

本発明に係る車両用計量装置は、請求項1に記載の構成を具備することによって、装置全体の低背・小型化が可能となり、それに伴い車両を載荷台に誘導するスロープの小型化が可能となっている。また、小型・低背化によって運搬も容易に行えるようになっている。さらに、この車両用計量装置は、荷重計測手段が車両の移動に伴う衝撃及び動荷重の影響を受け難く、小容量のものを採用することができる。   The vehicle weighing device according to the present invention has the configuration described in claim 1, so that the entire device can be reduced in height and reduced in size, and accordingly, the slope for guiding the vehicle to the loading platform can be reduced in size. It has become. The small size and low profile make it easy to carry. Further, as the vehicle weighing device, a small-capacity device can be adopted in which the load measuring means is hardly affected by an impact and a dynamic load accompanying the movement of the vehicle.

また、本発明において、請求項2に記載の構成を具備することによって、地面の沈下に対応することができ、コンクリート製の基礎を必要とせず、未舗装の地面であっても設置することができる。   Also, in the present invention, by providing the configuration according to claim 2, it is possible to cope with the settlement of the ground, it is not necessary to use a concrete foundation, and it can be installed even on unpaved ground. it can.

さらに、本発明において、請求項3に記載の構成を具備することによって、懸下式計測ユニットによる多点支持によって、懸下式計測ユニットの小容量化が可能となり、その分、計測精度の向上を図ることができる。   Furthermore, in the present invention, by providing the configuration according to the third aspect, it is possible to reduce the capacity of the suspension-type measurement unit by multi-point support by the suspension-type measurement unit, thereby improving the measurement accuracy. Can be achieved.

本発明に係る車両用計量装置の一例を示す正面図である。It is a front view showing an example of the measuring device for vehicles concerning the present invention. 同上の側面図である。It is a side view same as the above. 同上の平面図である。It is a top view same as the above. 図1中の懸下式計測ユニット部分を示す拡大正面図であって、車両移動時の状態を示す図である。FIG. 2 is an enlarged front view showing a suspension-type measurement unit in FIG. 1, showing a state when the vehicle is moving. 同上の車両重量計測時の状態を示す拡大正面図である。It is an enlarged front view which shows the state at the time of vehicle weight measurement same as the above. 従来の車両用計量装置の一例を示す断面図である。It is sectional drawing which shows an example of the conventional measuring device for vehicles.

次に、本発明に係る車両用計量装置の実施態様を図1〜図5に示した実施例に基づいて説明する。尚、図中符号1はダンプトラック等の車両、符号2は車両用計量装置、符号3は車両用計量装置2が設置される地面である。   Next, an embodiment of the vehicle weighing device according to the present invention will be described based on the embodiment shown in FIGS. In the drawings, reference numeral 1 denotes a vehicle such as a dump truck, reference numeral 2 denotes a vehicle weighing device, and reference numeral 3 denotes a ground on which the vehicle weighing device 2 is installed.

この車両用計量装置2は、地面3の両側部に配置される支持用部材4,4と、各支持用部材4,4より懸下された複数の懸下式計測ユニット5,5…と、複数の懸下式計測ユニット5,5…を介して両支持用部材4,4に支持された載荷台6と、各懸下式計測ユニット5,5…で計測された荷重を基に載荷台6上の車両1の重量を算出する重量算出手段とを備え、載荷台6に乗り入れた車両1の重量を計測するようになっている。   The vehicle weighing device 2 includes support members 4, 4 arranged on both sides of the ground 3, a plurality of suspension-type measurement units 5, 5. The loading platform 6 supported by the two supporting members 4, 4 via the plurality of suspension-type measuring units 5, 5,... And the loading platform based on the loads measured by the respective suspension-type measuring units 5, 5,. And a weight calculating means for calculating the weight of the vehicle 1 on the vehicle 6 so as to measure the weight of the vehicle 1 that has entered the loading platform 6.

また、車両用計量装置2は、車両進行方向の前後にそれぞれスロープ7,7を備え、スロープ7,7と通して車両1を載荷台6上に誘導できるようになっている。尚、スロープ7は、状況に応じて前側又は後ろ側の何れかに設置してもよい。   Further, the vehicle weighing device 2 includes slopes 7, 7 respectively before and after in the vehicle traveling direction, and the vehicle 1 can be guided on the loading platform 6 through the slopes 7, 7. Incidentally, the slope 7 may be installed on either the front side or the rear side depending on the situation.

この車両用計量装置2は、一定の平坦度を有する地面3の表面に載置され、設置される場所は、未舗装の地面3であってもよい。   The vehicle weighing device 2 may be placed on the surface of the ground 3 having a certain degree of flatness, and may be installed on the unpaved ground 3.

支持用部材4,4は、平板状の基板部10と、基板部10の側縁より立ち上げた側板部11と、側板部11の上縁より張り出した支持板部12とを備え、コ字状又は逆コ字状の断面が水平方向に連続したC形チャンネル材状を成している。   Each of the supporting members 4 includes a flat plate-shaped substrate portion 10, a side plate portion 11 rising from a side edge of the substrate portion 10, and a support plate portion 12 projecting from an upper edge of the side plate portion 11. The cross section of the shape or the inverted U shape forms a C-shaped channel material continuous in the horizontal direction.

両支持用部材4,4は、地面3の両側部に開口側を対向させて配置され、両支持用部材4,4の支持板部12にそれぞれ各懸下式計測ユニット5,5…が長手方向に間隔を置いて複数設置され、支持用部材4,4間に載荷台6が各懸下式計測ユニット5,5…を介して上下動可能に配置されている。   The two supporting members 4, 4 are arranged on both sides of the ground 3 with their opening sides facing each other, and the suspension type measuring units 5, 5,. A plurality of loading tables 6 are provided between the supporting members 4 and 4 so as to be vertically movable via the suspension type measuring units 5 and 5.

載荷台6は、各支持用部材4,4に設置された懸下式計測ユニット5,5…に両端が支持された支持用部材4,4間方向に向けた互いに平行な複数の支持梁材20,20…と、支持梁材20,20…上に車両1進行方向に向けて架け渡された載荷板21,21とを備え、各支持梁材20,20…によって載荷板21,21を支持するようになっている。   The loading table 6 includes a plurality of parallel supporting beam members directed toward the direction between the supporting members 4, 4 whose both ends are supported by the suspension-type measuring units 5, 5,. , And loading plates 21, 21 laid over the supporting beam members 20, 20 in the traveling direction of the vehicle 1, and the loading plates 21, 21 are supported by the respective supporting beam members 20, 20. I have come to support it.

支持梁材20,20…は、H形鋼等によって構成され、その両端部がそれぞれ支持用部材4,4の基板部10と支持板部12との間に上下動可能に配置されている。   The supporting beam members 20, 20,... Are made of H-section steel or the like, and both ends thereof are arranged between the substrate part 10 and the supporting plate part 12 of the supporting members 4, 4 so as to be vertically movable.

また、支持梁材20,20…には、その上面に懸下式計測ユニット5,5…の下端が連結され、各支持用部材4,4に懸下された一対の懸下式計測ユニット5,5…によって支持されている。   The lower ends of the suspension-type measuring units 5, 5,... Are connected to the upper surfaces of the supporting beam members 20, 20,. , 5...

各懸下式計測ユニット5,5…は、載荷台6を支持させる懸下部材30と、懸下部材30に作用する荷重を計測する荷重計測手段31と、懸下部材30を昇降させる昇降手段32と、荷重計測手段31のレベルを調節するレベル調整手段33とを備え、所定の配置に組み付けられたレベル調整手段33、荷重計測手段31及び昇降手段32を介して懸下部材30が支持板部12より下方に向けて懸下されている。   Each of the suspension-type measurement units 5, 5,... Includes a suspension member 30 that supports the loading platform 6, a load measurement unit 31 that measures a load acting on the suspension member 30, and an elevating unit that moves the suspension member 30 up and down. 32, and a level adjusting means 33 for adjusting the level of the load measuring means 31. The suspension member 30 is supported by the supporting plate 30 via the level adjusting means 33, the load measuring means 31, and the elevating means 32 assembled in a predetermined arrangement. It is suspended downward from the part 12.

レベル調整手段33は、支持板部12に開口した挿通孔13に挿通される可動管部34と、可動管部34の外側にその軸方向に相対移動可能に嵌合した支持用駒部35と、支持用駒部35と支持板部12との間に介在されるベアリング36とを備え、ベアリング36及び支持用駒部35を介して可動管部34が支持板部12に支持されるようになっている。   The level adjusting means 33 includes a movable tube portion 34 inserted into the insertion hole 13 opened in the support plate portion 12, a support piece 35 fitted outside the movable tube portion 34 so as to be relatively movable in the axial direction. And a bearing 36 interposed between the supporting piece 35 and the supporting plate 12 so that the movable tube 34 is supported by the supporting plate 12 via the bearing 36 and the supporting piece 35. Has become.

可動管部34は、外面に雄ネジを備えた両端が開口した管状に形成され、軸方向を上下に向けて挿通孔13に挿通されている。   The movable tube portion 34 is formed in a tubular shape having male threads on the outer surface and open at both ends, and is inserted into the insertion hole 13 with the axial direction facing up and down.

支持用駒部35は、中央部に可動管部34の雄ネジと螺合する雌ネジを有する中空円盤状に形成され、回転させることによって可動管部34と支持用駒部35とが互いに可動管部34の軸方向に相対移動するようになっている。尚、図中符号35aは、支持用駒部35を回転させるためのハンドルである。   The support piece 35 is formed in a hollow disk shape having a female screw at the center thereof to be screwed with the male screw of the movable pipe 34, and the movable pipe 34 and the support piece 35 are movable with each other by rotating. The tube 34 is relatively moved in the axial direction. Reference numeral 35a in the figure is a handle for rotating the support piece 35.

また、支持用駒部35は、支持板部12に形成された挿通孔13よりも大径に形成され、ベアリング36を介して挿通孔13の縁部に回転可能に支持されるようになっている。   The support piece 35 is formed to have a larger diameter than the insertion hole 13 formed in the support plate 12, and is rotatably supported by the edge of the insertion hole 13 via the bearing 36. I have.

荷重計測手段31は、中央にセンターホールを有する圧縮型ロードセルによって構成され、座金37を介して可動管部34の上面に同心配置に載置され、その上面に昇降手段32が支持されている。   The load measuring means 31 is constituted by a compression type load cell having a center hole in the center, is mounted concentrically on the upper surface of the movable tube portion 34 via a washer 37, and the elevating means 32 is supported on the upper surface.

昇降手段32は、中央に貫通孔を有するセンターホール型のジャッキによって構成され、荷重計測手段31の上面に載置されたジャッキ本体32aと、ジャッキ本体32aに対し上下動する円筒状のピストンロッド32bとを備え、ピストンロッド32bの上端にアンカー部材38を介して懸下部材30の上端が支持されている。   The lifting / lowering means 32 is constituted by a center-hole type jack having a through hole in the center, a jack body 32a mounted on the upper surface of the load measuring means 31, and a cylindrical piston rod 32b vertically moving with respect to the jack body 32a. The upper end of the suspension member 30 is supported on the upper end of the piston rod 32b via the anchor member 38.

この各懸下式計測ユニット5の昇降手段32は、制御装置(図示せず)によって同期的に油圧が制御され、ピストンロッド32bを定変位で可動させることができるようになっている。   The hydraulic pressure of the lifting / lowering means 32 of each suspension type measuring unit 5 is controlled synchronously by a control device (not shown), and the piston rod 32b can be moved at a constant displacement.

懸下部材30は、鋼棒等のロッド状に形成され、上端部が支持板の挿通孔13、ベアリング36、可動管部34、荷重計測手段31及び昇降手段32を貫通し、その上端がアンカー部材38を介して昇降手段32のピストンロッド32b上端に支持されている。   The suspension member 30 is formed in a rod shape such as a steel rod, and has an upper end penetrating through the insertion hole 13 of the support plate, the bearing 36, the movable pipe portion 34, the load measuring means 31, and the elevating means 32, and an upper end thereof being an anchor. It is supported on the upper end of the piston rod 32b of the elevating means 32 via a member 38.

また、懸下部材30は、下端に雄ネジ部30aを備え、この雄ネジ部30aを支持梁材20,20…の上面に貫通させ、ナット30bを締め付けることによって固定されている。尚、懸下部材30と支持梁材20,20…との固定手段は、ボルト締めに限定されず、その他の固定手段を用いてもよい。   Further, the suspension member 30 has a male screw portion 30a at the lower end, and the male screw portion 30a is penetrated through the upper surfaces of the support beams 20, 20,... And is fixed by tightening a nut 30b. The means for fixing the suspension member 30 and the support beams 20, 20,... Is not limited to bolting, and other fixing means may be used.

この懸下式計測ユニット5は、支持用駒部35を回転させることによって、支持板部12に対し可動管部34が上下移動し、それに伴い支持板部12に対する荷重計測手段31、昇降手段32及び懸下部材30の高さがユニット毎に調整できるようになっている。   In the suspension-type measuring unit 5, by rotating the support piece 35, the movable tube 34 moves up and down with respect to the support plate 12, and accordingly, the load measuring means 31 and the elevating means 32 with respect to the support plate 12. The height of the suspension member 30 can be adjusted for each unit.

また、懸下式計測ユニット5は、昇降手段32を動作させることによって、懸下部材30を昇降させることができ、図4に示す懸下部材30に支持された載荷台6を着底させた状態(車両移動位置)と、図5に示す地面3より離脱し荷重計測手段31に懸下部材30に作用する荷重が伝達される状態(計測位置)との間で移動させることができるようになっている。   In addition, the suspension type measurement unit 5 can raise and lower the suspension member 30 by operating the lifting / lowering means 32, and the landing table 6 supported by the suspension member 30 shown in FIG. It can be moved between a state (vehicle moving position) and a state (measurement position) where the load acting on the suspension member 30 is separated from the ground 3 shown in FIG. Has become.

次に、この車両用計量装置2を使用した計測方法について説明する。   Next, a measurement method using the vehicle weighing device 2 will be described.

先ず、各懸下式計測ユニット5,5…の昇降手段32を下降させた状態とし、載荷台6を着底、即ち、各支持梁材20,20…の両端部がそれぞれ支持用部材4,4の基板部10上面に載置された状態(車両移動位置)とする。   First, the lifting / lowering means 32 of each of the suspension-type measuring units 5, 5,... Is lowered, and the loading table 6 is settled, that is, both ends of each of the support beams 20, 20,. 4 (a vehicle moving position).

次に、この状態において、各懸下式計測ユニット5,5…の荷重計測手段31の計測値を確認し、各懸下式計測ユニット5,5…に偏荷重が作用していないか、即ち、何れかの荷重計測手段31で荷重を検知しているかを確認する。   Next, in this state, the measured value of the load measuring means 31 of each of the suspension-type measuring units 5, 5,... Is checked, and whether an unbalanced load is acting on each of the suspension-type measuring units 5, 5,. It is confirmed whether any of the load measuring means 31 detects the load.

そして、各懸下式計測ユニット5,5…に偏荷重が作用している場合には、昇降手段32を下降させた状態で支持用駒部35を回転させて、全ての荷重計測手段31で荷重が0となるように可動管部34の高さを調節する。   When an unbalanced load is acting on each of the suspension-type measuring units 5, 5,..., The supporting piece 35 is rotated with the elevating means 32 lowered, and all the load measuring means 31 The height of the movable tube part 34 is adjusted so that the load becomes zero.

さらに、昇降手段32によって懸下部材30を上昇させ、載荷台6を地面3より浮かせた状態とし、その状態で荷重計測手段31の計測値を確認しつつ、支持用駒部35を回転させ、全ての荷重計測手段31の計測値が一定となるように可動管部34の高さを調節する。   Further, the suspension member 30 is lifted by the lifting / lowering means 32 to bring the loading table 6 above the ground 3, and in this state, the support piece 35 is rotated while checking the measured value of the load measuring means 31, The height of the movable pipe part 34 is adjusted so that the measured values of all the load measuring means 31 become constant.

そして、調整が完了したら昇降手段32によって各懸下部材30を下降させ、図4に示すように、載荷台6を着底した状態とし、車両1が進入できるようにしておく。   Then, when the adjustment is completed, each suspension member 30 is lowered by the lifting / lowering means 32, and as shown in FIG.

次に、図1〜図3に示すように、スロープ7,7を通してダンプトラック等の車両1を載荷台6上に移動させ、載荷台6の所定の位置で停車させる。   Next, as shown in FIGS. 1 to 3, the vehicle 1 such as a dump truck is moved onto the loading platform 6 through the slopes 7 and 7 and stopped at a predetermined position on the loading platform 6.

このとき、載荷台6が着底した状態にあるので載荷台6に車両1を乗り入れた際の衝撃及び移動に伴う動荷重が荷重計測手段31に作用しないようになっている。   At this time, since the loading platform 6 is in a landed state, a dynamic load caused by an impact and a movement when the vehicle 1 enters the loading platform 6 does not act on the load measuring unit 31.

そして、車両1が所定の位置に停車した後、図5に示すように、制御装置によって各懸下式計測ユニット5,5…の昇降手段32を同期的に動作させ、各昇降手段32によって定変位で載荷台6を上昇させる。   After the vehicle 1 has stopped at a predetermined position, as shown in FIG. 5, the control device operates the lifting / lowering means 32 of each of the suspension-type measuring units 5, 5,... Synchronously. The loading table 6 is raised by the displacement.

次に、荷重計測手段31の計測値の増加が無くなったことを確認し、昇降手段32を停止させ、この状態で荷重計測手段31によって荷重を計測し、この計測値を合算し、算出手段が積載量を含む車両1の重量を算出する。   Next, it is confirmed that the increase in the measured value of the load measuring means 31 has stopped, and the elevating means 32 is stopped. In this state, the load is measured by the load measuring means 31, and the measured values are added up. The weight of the vehicle 1 including the load is calculated.

また、算出手段は、積載量を含む車両1重量から予め計測された車両1自体の重量を減算することで、積荷の正確な重量を算出することもできる。   Further, the calculating means can also calculate the accurate weight of the load by subtracting the weight of the vehicle 1 itself measured in advance from the weight of the vehicle 1 including the load amount.

そして、車両1の重量計測が完了したら、各懸下式計測ユニット5の昇降手段32を同期的に動作させ、各昇降手段32によって定変位で載荷台6を下降させ、着底させる。   Then, when the weight measurement of the vehicle 1 is completed, the lifting / lowering means 32 of each suspension-type measuring unit 5 is operated synchronously, and the loading table 6 is lowered at a constant displacement by each of the lifting / lowering means 32 to land on the bottom.

最後に、載荷台6を着底させた状態でスロープ7,7を通して車両1を載荷台6より移動させ、計量が完了する。尚、この際も載荷台6が着底した状態にあるので載荷台6より車両1が移動する際の衝撃及び移動に伴う動荷重が荷重計測手段31に作用しないようになっている。   Finally, the vehicle 1 is moved from the loading platform 6 through the slopes 7, 7 with the loading platform 6 landing, and the weighing is completed. In this case as well, since the loading platform 6 is in a landed state, an impact when the vehicle 1 moves from the loading platform 6 and a dynamic load caused by the movement do not act on the load measuring means 31.

このように構成された車両用計量装置2は、車両1が載荷される載荷台6が多数の懸下式計測ユニット5,5…を介して懸下される構造としたことによって、装置全体の低背化が可能となり、それに伴い車両1を載荷台6に誘導するスロープ7,7の小型化が可能となっている。また、小型・低背化によって運搬も容易に行えるようになっている。   The vehicle weighing device 2 configured as described above has a structure in which the loading platform 6 on which the vehicle 1 is loaded is suspended via a number of suspension-type measurement units 5, 5,. The height can be reduced, and accordingly, the slopes 7 for guiding the vehicle 1 to the loading platform 6 can be reduced in size. The small size and low profile make it easy to carry.

また、この車両用計量装置2は、各懸下式計測ユニット5に昇降手段32を備え、載荷台6を着底させた状態で車両1の載荷台6への乗り入れ及び載荷台6からの退出ができるようにしたことによって、荷重計測手段31に対する車両1の移動に伴う衝撃及び動荷重の影響が抑制されている。   In addition, the vehicle weighing device 2 includes an elevating means 32 in each suspension-type measuring unit 5, and the vehicle 1 enters the loading platform 6 and exits from the loading platform 6 with the loading platform 6 landing. The effect of the impact and the dynamic load associated with the movement of the vehicle 1 on the load measuring means 31 is suppressed.

さらに、荷重計測手段31が車両1の移動に伴う衝撃及び動荷重の影響が少ないことに加え、懸下式計測ユニット5を多点化したことによって、荷重計測手段31には、小容量のロードセルを採用することができ、計測精度の向上も図ることができる。   Furthermore, the load measuring means 31 is less affected by the impact and dynamic load caused by the movement of the vehicle 1 and the suspension measuring unit 5 is multi-pointed, so that the load measuring means 31 has a small capacity load cell. Can be adopted, and the measurement accuracy can be improved.

即ち、荷重計測手段31(ロードセル)の定格容量は、以下の式によって計算され、ロードセル数を増やせばロードセルの定格容量を小さくすることができる。また、この車両1計量装置では、載荷台6を着底させた状態で車両1の移動ができるので、衝撃係数の設定を小さくすることができ、その分、ロードセルの定格容量を小さくすることができる。   That is, the rated capacity of the load measuring means 31 (load cell) is calculated by the following equation, and the rated capacity of the load cell can be reduced by increasing the number of load cells. In addition, in this vehicle 1 weighing device, the vehicle 1 can be moved with the loading platform 6 landing, so that the setting of the impact coefficient can be reduced, and the rated capacity of the load cell can be reduced accordingly. it can.

式1Equation 1

(ロードセルの容量)≧{(衝撃係数×不可荷重+初期荷重)×荷重偏心係数×荷重不均衡係数}÷(ロードセル数)
衝撃係数:1.1〜1.5(通常は1.3)
荷重偏心係数:1.1〜1.3(通常1.2)
荷重不均衡係数:1点、3点の場合は1、4点の場合は1.2
不可荷重:測定対象物の最大荷重
初期荷重:機器の自重
(Capacity of load cell) ≧ {(impact coefficient × impossible load + initial load) × load eccentricity coefficient × load imbalance coefficient} ÷ (number of load cells)
Impact coefficient: 1.1 to 1.5 (normally 1.3)
Load eccentricity coefficient: 1.1 to 1.3 (normal 1.2)
Load imbalance coefficient: 1 point, 1 for 3 points, 1.2 for 4 points
Impossible load: Maximum load of the object to be measured Initial load: Self-weight of equipment

一方、複数のロードセルを電気的に加算した場合の総合精度σsは、次式によって計算され、ロードセルの個数が多いほど総合精度が高くなる。   On the other hand, the total accuracy σs when a plurality of load cells are electrically added is calculated by the following equation. The greater the number of load cells, the higher the total accuracy.

式2Equation 2

Figure 2020034364
但し、σ:ロードセル単体の総合精度、N:ロードセルの個数
Figure 2020034364
Where σ T : total accuracy of load cell alone, N: number of load cells

また、ロードセルの精度は、定格容量と比例関係にあるので、この車両用計量装置2は、懸下式計測ユニット5,5…を多点化し、且つ、載荷台6を着底させた状態で車両1の載荷台6への乗り入れ及び載荷台6からの退出ができるようにしたことによって、ロードセルに定格容量の小さいものを採用することができるので高い精度を実現することができるようになっている。   Further, since the accuracy of the load cell is proportional to the rated capacity, the vehicle weighing device 2 has the suspension type measuring units 5, 5,. By allowing the vehicle 1 to enter and leave the loading platform 6, a load cell having a small rated capacity can be adopted as the load cell, so that high accuracy can be realized. I have.

さらに、この車両用計量装置2は、懸下式計測ユニット5毎にレベル調整手段33を備えていることによって、地面3の沈下が生じた場合であっても、レベル調整手段33によって各懸下式計測ユニット5のレベルを調整することができるので、大型のコンクリート基礎が不要となり、未舗装の地面3にも設置することができるようになっている。   Further, the vehicle weighing device 2 is provided with the level adjusting means 33 for each of the suspension type measuring units 5, so that even when the ground 3 sinks, each leveling means 33 is provided by the level adjusting means 33. Since the level of the type measuring unit 5 can be adjusted, a large concrete foundation is not required, and the concrete measuring unit 5 can be installed on the unpaved ground 3.

尚、懸下式計測ユニット5,5…の構成は、上述の実施例に限定されず、レベル調節手段、荷重計測手段31及び昇降手段32の配置を適宜変更することができる。   .. Are not limited to the above-described embodiment, and the arrangement of the level adjusting means, the load measuring means 31, and the lifting / lowering means 32 can be appropriately changed.

また、荷重計測手段31は、上述のセンターホールを有する圧縮型ロードセルに限定されず、例えば、引張荷重を計測するロードセルを使用し、懸下部材30の上端を連結し、懸下部材30に作用する引張荷重を計測するようにしてもよい。   Further, the load measuring means 31 is not limited to the compression type load cell having the center hole described above. For example, a load cell for measuring a tensile load is used, and the upper end of the suspension member 30 is connected to act on the suspension member 30. The tensile load to be applied may be measured.

1 車両
2 車両用計量装置
3 地面
4 支持用部材
5 懸下式計測ユニット
6 載荷台
7 スロープ
10 基板部
11 側板部
12 支持板部
13 挿通孔
20 支持梁材
21 載荷板
30 懸下部材
31 荷重計測手段
32 昇降手段
33 レベル調整手段
34 可動管部
35 支持用駒部
36 ベアリング
37 座金
38 アンカー部材
DESCRIPTION OF SYMBOLS 1 Vehicle 2 Vehicle weighing device 3 Ground 4 Supporting member 5 Suspended measuring unit 6 Loading table 7 Slope 10 Substrate unit 11 Side plate unit 12 Support plate unit 13 Insertion hole 20 Support beam 21 Loading plate 30 Suspension member 31 Load Measuring means 32 Elevating means 33 Level adjusting means 34 Movable tube 35 Supporting piece 36 Bearing 37 Washer 38 Anchor member

Claims (3)

車両の重量を計測する車両用計量装置において、
地面の両側部に配置される支持用部材と、該各支持用部材より懸下された複数の懸下式計測ユニットと、該複数の懸下式計測ユニットを介して前記両支持用部材に支持された載荷台とを備え、
前記懸下式計測ユニットは、前記載荷台を支持させる懸下部材と、該懸下部材に作用する荷重を計測する荷重計測手段と、前記懸下部材を昇降させる昇降手段とを備え、
前記懸下部材を下降させ、前記載荷台を着底させた状態で前記車両が進入できるようにしたことを特徴とする車両用計量装置。
In a vehicle weighing device that measures the weight of a vehicle,
Supporting members arranged on both sides of the ground, a plurality of suspension-type measuring units suspended from the respective supporting members, and supported by the two supporting members via the plurality of suspension-type measuring units With a loading platform
The suspension-type measurement unit includes a suspension member that supports the loading platform, a load measurement unit that measures a load acting on the suspension member, and a lifting unit that raises and lowers the suspension member.
A weighing device for a vehicle, wherein the suspension member is lowered to allow the vehicle to enter with the cargo bed settled down.
前記各懸下式計測ユニットは、前記荷重計測手段のレベルを調節するレベル調整手段を備えた請求項1に記載の車両用計量装置。   The vehicle weighing device according to claim 1, wherein each of the suspension-type measurement units includes a level adjustment unit that adjusts a level of the load measurement unit. 前記載荷台は、前記懸下式計測ユニットに両端が支持された支持用部材間方向に向けた複数の支持梁材と、該支持梁材上に架け渡された載荷板とを備えている1又は2に記載の車両用計量装置。   The above-mentioned loading platform is provided with a plurality of supporting beam members directed in a direction between supporting members, both ends of which are supported by the suspension-type measuring unit, and a loading plate bridged over the supporting beam members. Or the weighing device for a vehicle according to 2.
JP2018160006A 2018-08-29 2018-08-29 Vehicle weighing device Pending JP2020034364A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54178552U (en) * 1978-06-07 1979-12-17
JPS5661423U (en) * 1979-10-17 1981-05-25
JPH0893045A (en) * 1994-09-22 1996-04-09 Aibesu Techno Kk Tank vehicle
JP2000337953A (en) * 1999-05-25 2000-12-08 Teraoka Seiko Co Ltd Weighing device
JP2001188022A (en) * 1999-12-28 2001-07-10 Nippon Seikosho:Kk Cart scale
JP2002148108A (en) * 2000-01-28 2002-05-22 Kubota Corp On-vehicle weighing equipment
JP2011095127A (en) * 2009-10-30 2011-05-12 Yamato Scale Co Ltd Weighing device
CN206161129U (en) * 2016-10-08 2017-05-10 天津市强源食品有限公司 Special electronic scale of hopper trolley
CN207585737U (en) * 2017-11-28 2018-07-06 郑州金恒电子技术有限公司 A kind of liftable wide range automobile scale device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54178552U (en) * 1978-06-07 1979-12-17
JPS5661423U (en) * 1979-10-17 1981-05-25
JPH0893045A (en) * 1994-09-22 1996-04-09 Aibesu Techno Kk Tank vehicle
JP2000337953A (en) * 1999-05-25 2000-12-08 Teraoka Seiko Co Ltd Weighing device
JP2001188022A (en) * 1999-12-28 2001-07-10 Nippon Seikosho:Kk Cart scale
JP2002148108A (en) * 2000-01-28 2002-05-22 Kubota Corp On-vehicle weighing equipment
JP2011095127A (en) * 2009-10-30 2011-05-12 Yamato Scale Co Ltd Weighing device
CN206161129U (en) * 2016-10-08 2017-05-10 天津市强源食品有限公司 Special electronic scale of hopper trolley
CN207585737U (en) * 2017-11-28 2018-07-06 郑州金恒电子技术有限公司 A kind of liftable wide range automobile scale device

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