CN201047775Y

CN201047775Y - Weighing module

Info

Publication number: CN201047775Y
Application number: CNU2007200400372U
Authority: CN
Inventors: 盛杰; 巢志鹤; 谢奕; 汤建华
Original assignee: Mettler Toledo Changzhou Measurement Technology Ltd; Mettler Toledo Changzhou Precision Instruments Ltd; Mettler Toledo Changzhou Weighing Equipment Co Ltd
Current assignee: Mettler Toledo Changzhou Measurement Technology Ltd; Mettler Toledo Changzhou Precision Instruments Ltd; Mettler Toledo Changzhou Weighing Equipment Co Ltd
Priority date: 2007-06-25
Filing date: 2007-06-25
Publication date: 2008-04-16
Anticipated expiration: 2017-06-25

Abstract

The utility model relates to a weighing module, comprising a connection component, an upper pressure part, a column type weighting sensor, a lower pressure part and a bottom plate, wherein, the connection component comprises a top plate, a supporting plate and a fixation plate; the upper pressure part and the lower pressure part are installed on the top plate and the bottom plate respectively, the column type weighting sensor has a limiting sheath sleeved on the cervix and stuck on the upper pressure part, the upper and the lower ends of the column type weighting sensor have spherical surface contact with the hole bottom surfaces of the upper and the lower pressure parts respectively, screw stems of two overturning preventing bolts have shaft sheathes arranged and spinning jointed on two screw holes penetrating through the fixation plate, two ends of the shaft sheaths are propped against the bottom plates and the shaft shoulders of the overturning preventing bolts, a space b is arranged between the bottom of the fixation plate or the supporting plate and the bottom plate, and a space a is arranged between the shaft shoulders of the overturning preventing bolts and the fixation plate. The weighting module of the utility model integrates weighting, vertical protection limiting, and horizontal protection limiting, and has the advantages of high weighting precision, installation and maintenance convenience, smooth and reliable operation and so on.

Description

Weighing module

Technical field

The utility model relates to the weighing device in a kind of electronic weighing system, especially relates to a kind of Weighing module.

Background technology

In industries such as cement, metallurgy, chemical industry, grain processing, petrochemical industry, when with the mode of weighing material being measured or material level when control, be that a plurality of LOAD CELLS are installed in the batch can bottom, the weight or the material level of material in the automatic gauge batch can.As CN273644Y disclosed " Weighing cell module "; by upper mounted plate; bottom plate and be located at upper fixing element and bottom plate between sensor unit and cramp bar; the anchorage bar assembly constitutes; upper mounted plate is provided with at least 4 spacing holes; and be provided with and the upper mounted plate anchorage bar vertical between bottom plate and anchorage bar with bottom plate; and the anchorage bar upper end matches by clamp nut with upper mounted plate; its lower end is threaded with cramp bar; before Weighing cell module is installed on the weighing platform; by clamp nut and anchorage bar upper mounted plate and bottom plate are adjusted to parastate; by mounting hole Weighing cell module is installed on the weighing platform then; to reach the purpose of integral installation, in transportation and the installation process LOAD CELLS is played a protective role.But the Weighing cell module of this structure is because the two ends and the upper and lower fixing plate of sensor are plane contact, therefore after needing to regulate upper mounted plate and bottom plate is parallel, upper mounted plate and bottom plate after could will mixing up are connected to weighing platform, regulate loaded down with trivial details.The Weighing module of this structure is being subjected to inner mixing power in addition, and outside wind-force, air-flow and vibration etc. during the influencing of external force, LOAD CELLS is the effect to vertical force and horizontal force, and the upper mounted plate on the Weighing cell module can produce mobile, is difficult to guarantee weighing precision.In addition, the Weighing cell module of this structure does not have horizontal protective device and anti-tipping mechanism, and under the effect of wind load and seismic (seismal, the batch can on top can be moved, and damages LOAD CELLS and web member, and functional reliability reduces.

CN2872324 disclosed " the heavy bracket component of the meter of batch can weighing device "; be to constitute by top board, LOAD CELLS and base plate; LOAD CELLS be arranged on base plate and contact with pressure part sphere on the top board; the gag lever post that is connected on the top board is screwed in the threaded hole of base plate, is provided with the gap to the vertical position limitation protection of LOAD CELLS between gag lever post and LOAD CELLS or the top board.This meter molality piece can not only improve the heavy precision of meter, and because of being provided with the gap that makes the LOAD CELLS operate as normal between gag lever post and the top board, the heavy state lower limit of meter bar does not stress, can make LOAD CELLS be in unsteady state, and can not influence the precision of metering, simultaneously also can play vertical limit function, to prevent toppling of batch can by gag lever post.But owing to the top of gag lever post from top board is connected on the base plate, be to be the thru-bolt structure, do the time spent when batch can is subjected to external force, because moving horizontally or toppling can appear in batch can, bolt is subjected to bigger pulling force and moment of flexure than length, therefore easily can damage bolt, and loses anti-function of toppling over.This assembly is installed on the batch can on the other hand, therefore is to move with batch can, makes troubles to maintenance.

Summary of the invention

The purpose of this utility model provides a kind of weighing precision height, installation and maintenance are convenient, working stability, reliable Weighing module.

Further purpose of the present utility model provides a kind ofly makes the Weighing module that the time spent can not produce horizontal displacement being subjected to external force.

The utility model is that the technical scheme that achieves the above object is: a kind of Weighing module, it is characterized in that: comprise coupling assembling, last pressure part, the pillar LOAD CELLS, following pressure part and base plate, described coupling assembling comprises top board, support plate and fixed head, top board is provided with pilot hole and mounting hole, two support plates are connected on top board and the fixed head, it is lateral opening that the middle part of fixed head and both sides are respectively equipped with spacing hole and two, base plate is provided with down pilot hole, screw and mounting hole, the last pressure part that has the shaft shoulder is arranged in the last pilot hole of top board, having pressing down of the shaft shoulder holds part and the end is installed has spacing spacing c in the following pilot hole of base plate and with the spacing hole of fixed head, the last neck of pillar LOAD CELLS is with stop collar and is connected on the pressure part, on the pillar LOAD CELLS, the lower surface is that sphere contacts with the bottom surface, hole of last pressure part and following pressure part respectively, on lateral opening two screws that are screwed in base plate that are set with axle sleeve on the screw rod of two anti-bolts that topple and pass fixed head, the two ends of axle sleeve withstand on respectively on the shaft shoulder of base plate and the anti-bolt that topples, be provided with spacing b between the bottom of fixed head or support plate and the base plate, also be provided with spacing a between the shaft shoulder of the anti-bolt that topples and the fixed head.

The utility model is formed an independently one-piece construction with two anti-bolts that topple with base plate, coupling assembling, last pressure part, following pressure part and pillar LOAD CELLS, when being installed in weighing system, Weighing module need not other annexes, the integral installation of Weighing module energy, so installation is simple, and debug, safeguard all very convenient.The utility model is owing to be provided with spacing between fixed head or support plate and base plate, and also is provided with spacing between the shaft shoulder of the anti-bolt that topples and the fixed head, can make the pillar LOAD CELLS be in unsteady state during work, can not influence the precision of metering.Be subjected to disturbing factors such as wind-force, air-flow and vibration when the weighing system surrounding environment, or Weighing module is when being subjected to overloading, may produce in the pillar LOAD CELLS under the fortuitous events such as cracked or damage, fixed head on the coupling assembling or support plate then contact with base plate, spacing between fixed head and the base plate is disappeared, the vertical force that coupling assembling bore is acted directly on the base plate; And when system was subjected to the external impacts power of level, coupling assembling produced and relatively moves, and this moment, fixed head contacted with following pressure part, and the horizontal force that coupling assembling bore is delivered to the installation base plate, has guaranteed the safety of Weighing module.And when impacting after external force eliminates, the pillar LOAD CELLS produces a restoring force by two spheres, returns to original plumbness, thereby has guaranteed the high precision and the long-time stability of pillar LOAD CELLS, makes that the weighing system weighing error is little, precision is high.

Weighing module of the present utility model is under the factor that is subjected to outside wind-force, inner mixing power and air-flow and vibration; because of weighing system can produce the power of toppling; at this moment; two anti-bolts that topple will bear the power of toppling; the protection weighing system does not topple under the effect of external force, because the anti-bolt that topples is shorter, can reduce the pulling force and the moment of flexure of bolt; make the anti-not rapid wear ring of bolt that topples, and increased the security of weighing system.

The upper/lower terminal of pillar LOAD CELLS of the present utility model is that sphere contacts with the bottom surface, hole of last pressure part and following pressure part, so can make LOAD CELLS remain plumbness, guarantee that LOAD CELLS is vertically stressed, measure the weight of material in the batch can or the material level of material exactly.

The utility model is provided with horizontal limit pull rod between base plate and coupling assembling, under the prerequisite of precision that guarantees the pillar LOAD CELLS and accuracy of weighing system, can protect weighing system to do the time spent and can not produce horizontal displacement being subjected to external force.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is the structural representation of facing of the present utility model.

Fig. 3 is the plan structure synoptic diagram of Fig. 2.

Fig. 4 is the A-A sectional structure synoptic diagram of Fig. 3

Wherein: 1-coupling assembling, 1-1-top board, the last pilot hole of 1-2-, 1-3-mounting hole, 1-4-support plate, 1-5-is lateral opening, 1-6-fixed head, the horizontal axle sleeve of 1-7-, 1-8-spacing hole, the last pressure part of 2-, the 2-1-breach, 3-stop collar, 3-1-side, 4-pillar LOAD CELLS; The 5-O-ring seal; Pressure part under the 6-,-anti-the bolt that topples; 8-contraposition pad, 9-axle sleeve, 10-portable plate, 11-base plate, 11-1-screw, the mounting hole of 11-2-pull bar, pilot hole under the 11-3-, 11-4-mounting hole, 12-pull bar, 13-setting nut.

Embodiment

See the Weighing module of the present utility model shown in Fig. 1～4, comprise coupling assembling 1, last pressure part 2, pillar LOAD CELLS 4, following pressure part 6 and base plate 11.See that this coupling assembling 1 comprises top board 1-1, support plate 1-4 and fixed head 1-6 shown in Fig. 1,4, top board 1-1 is provided with pilot hole 1-2, also be provided with mounting hole 1-3 on the top board 1-1, containers such as batch can are installed on this top board, two support plate 1-4 are connected between top board 1-1 and the fixed head 1-6, for improving the physical strength and the rigidity of coupling assembling, the xsect of this support plate 1-4 is U-shaped or C shape, the middle part of fixed head 1-6 is provided with spacing hole 1-8, and the both sides of fixed head 1-6 are provided with two lateral opening 1-5.Support plate 1-4 of the present utility model sees shown in Figure 1, and the interior lateral surface of support plate 1-4 is fixedlyed connected with split type fixed head 1-6 respectively, makes two support plate 1-4 bottom surfaces exceed the bottom surface of fixed head 1-6; Or see shown in Figure 4ly, and the bottom surface of support plate 1-4 is fixed on the fixed head 1-6, and the bottom surface of fixed head 1-6 surpasses the bottom surface of support plate 1-4.See shown in Figure 1ly, base plate 11 is provided with down pilot hole 11-3 and screw 11-1 and mounting hole 11-4, base plate 11 can be installed on the basis.See Fig. 1; shown in 4; the last pressure part 2 that has the shaft shoulder is arranged in the last pilot hole 1-2 of top board 1-1; upper support press 2 radially and also be provided with O-ring seal between the last pilot hole; hold the 6 installation ends of part in the following pilot hole 11-3 of base plate 11 and have pressing down of the shaft shoulder; press down between the spacing hole 1-8 that holds part 6 and fixed head 1-6 and have spacing spacing c; when Weighing module is subjected to the external impacts of horizontal direction; coupling assembling 1 will produce and relatively move; this moment, fixed head 1-6 contacted with following pressure part 6; the horizontal force that coupling assembling 1 is born is delivered to installation base plate 11; can protect Weighing module; the last neck of pillar LOAD CELLS 4 is with stop collar 3 and is connected on the pressure part 2; see Fig. 1; shown in 4; upper supporting part 2 inner hole walls are provided with the plane or the curved surface of symmetry; and stop collar 3 is provided with two corresponding side 3-1; stop collar 3 is installed on the upper supporting part 2; and it is spacing by two sides 3-1; in use; when Weighing module rotates owing to the influence of external force such as being vibrated; last pressure part 2 and stop collar 3 can prevent the rotation of pillar LOAD CELLS 4, protection pillar LOAD CELLS 4.On the pillar LOAD CELLS 4 of the present utility model; the lower surface contacts with bottom surface, the hole sphere of last pressure part 2 and following pressure part 6 respectively; on this pillar LOAD CELLS 4; the lower surface is a sphere; perhaps go up the bottom surface, hole of pressure part 2 and following pressure part 6 and make sphere; make pillar LOAD CELLS 4 vertically stressed; and the assurance measuring accuracy; the lateral opening 1-5 that is set with axle sleeve 9 on the screw rod of two anti-bolts 7 that topple and passes fixed head 1-6 is screwed on the two screw 11-1 of base plate 11; the two ends of this axle sleeve 9 withstand on respectively on the shaft shoulder of base plate 11 and the anti-bolt 7 that topples; be provided with spacing b between the bottom surface of fixed head 1-6 or support plate 1-4 and the base plate 11; also be provided with spacing a between the shaft shoulder of the anti-bolt 7 that topples and the fixed head 1-6; to protect normal gage work; and when Weighing module is overloaded or is subjected to external force and influences; fixed head 1-6 or support plate 1-4 contact with base plate 11; vertical force will be acted directly on the base plate 11, guaranteed the safety of Weighing module.

See shown in Fig. 1,2, support plate 1-4 of the present utility model is provided with horizontal axle sleeve 1-7, base plate 11 is provided with the mounting hole 11-2 of pull bar, the pull bar 12 of two joint bearing types is connected on horizontal axle sleeve 1-7 and the base plate 11, and two pull bars 12 connect by setting nut 13, can not produce horizontal displacement after Weighing module is being subjected to external force.

The utility model is for guaranteeing that Weighing module is in transportation, pillar LOAD CELLS 4 can not be subjected to the influence of external force, see the portable plate 10 that also has shown in Figure 1, the portable plate 10 that the outside has V-shaped part is arranged between fixed head 1-6 and the base plate 11, or between support plate 1-4 and the base plate 11, and be positioned at the inboard of the anti-bolt 7 that topples, and the inboard contraposition pad 8 that has opening is inserted into axle sleeve 9 cylindrical places, and the place of remaining silent of contraposition pad 8 is provided with recessed locating surface, cooperate with the lateral opening 1-5 of fixed head 1-6, guarantee top board 1-1 and base plate 11 mutual alignment sizes, guarantee that avoiding the external force effect in pillar LOAD CELLS 4 transportations damages LOAD CELLS, and after Weighing module installs, dismountable portable plate 10 and contraposition pad 8.

That Weighing module of the present utility model will weigh, vertically protect will be spacing, level protection collection is one; do not need other annexes in installation process; module whole is installed; simple; and debugging, safeguard all easily, and guaranteed installation accuracy, eliminated the weighting error that brings because of installation; and the weighing that also reduces environmental interference and produced influence is applicable to that weighing system, process weighing and burden and material level detect and control.

Claims

1. Weighing module, it is characterized in that: comprise coupling assembling (1), last pressure part (2), pillar LOAD CELLS (4), following pressure part (6) and base plate (11), described coupling assembling (1) comprises top board (1-1), support plate (1-4) and fixed head (1-6), top board (1-1) is provided with pilot hole (1-2) and mounting hole (1-3), two support plates (1-4) are connected on top board (1-1) and the fixed head (1-6), the middle part of fixed head (1-6) and both sides are respectively equipped with spacing hole (1-8) and two lateral opening (1-5), base plate (11) is provided with down pilot hole (11-3), screw (11-1) and mounting hole (11-4), the last pressure part (2) that has the shaft shoulder is arranged in the last pilot hole (1-2) of top board (1-1), have that pressing down of the shaft shoulder holds that part (6) is installed in the following pilot hole (11-3) of base plate (11) and have spacing spacing c with the spacing hole (1-8) of fixed head (1-6), the last neck of pillar LOAD CELLS (4) is with stop collar (3) and is connected on the pressure part (2), pillar LOAD CELLS (4) upper and lower end face is that sphere contacts with the bottom surface, hole of last pressure part (2) and following pressure part (6) respectively, lateral opening (1-5) that the screw rod place of two anti-bolts (7) that topple is set with axle sleeve (9) and passes fixed head (1-6) is screwed in two screws (11-1) of base plate (11), and the two ends of axle sleeve (9) withstand on respectively on the shaft shoulder of base plate (11) and anti-bolt (7) of toppling, be provided with spacing b between the bottom surface of fixed head (1-6) or support plate (1-4) and the base plate (11), the shaft shoulder of the anti-bolt (7) that topples and fixed head (1-6) are gone up between the plane and also are provided with spacing a.

2. Weighing module according to claim 1, it is characterized in that: described support plate (1-4) is provided with horizontal axle sleeve (1-7), base plate (11) is provided with the mounting hole (11-2) of pull bar, the pull bar of two joint bearing types (12) is connected on support plate (1-4) and the base plate (11), and two pull bars (12) connect by setting nut (13).

3. Weighing module according to claim 1 and 2 is characterized in that: the xsect of described support plate (1-4) is U-shaped or C shape.

4. Weighing module according to claim 1, it is characterized in that: the described outside that also is provided with has the portable plate (10) of V-arrangement opening, portable plate (10) is positioned at the inboard of anti-bolt (7) of toppling, and portable plate (10) is arranged between fixed head (1-6) and the base plate (11) or the bottom surface and base plate (11) of support plate (1-4) between.

5. Weighing module according to claim 1, it is characterized in that: described also have a contraposition pad (8) that the inboard has opening, contraposition pad (8) is inserted into axle sleeve (9) cylindrical place, and the place of remaining silent of contraposition pad (8) is provided with recessed locating surface, and cooperates with lateral opening (1-5) of fixed head (11-6).

6. Weighing module according to claim 1 is characterized in that: also be with O-ring seal (5) on the diameter of axle on pressure part (6) top under described pillar LOAD CELLS (4) is positioned at.

7. Weighing module according to claim 1 is characterized in that: pressure part (2) radially and between the last pilot hole (1-2) also is provided with O-ring seal on described.

8. Weighing module according to claim 1, it is characterized in that: described upper supporting part (2) inner hole wall is provided with the plane or the curved surface of symmetry, and stop collar (3) is provided with corresponding two sides (3-1), and it is last and spacing by two side faces (3-1) that stop collar (3) is installed in upper supporting part (2).