CN204834145U - Former electrical system's shielded cable ground structure - Google Patents
Former electrical system's shielded cable ground structure Download PDFInfo
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- CN204834145U CN204834145U CN201520449395.3U CN201520449395U CN204834145U CN 204834145 U CN204834145 U CN 204834145U CN 201520449395 U CN201520449395 U CN 201520449395U CN 204834145 U CN204834145 U CN 204834145U
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- Prior art keywords
- control panel
- former
- feed
- distribution box
- shielded type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Abstract
The utility model discloses a former electrical system's shielded cable ground structure, former power supply system include commercial power solar power access equipment and block terminal, and former electrical system includes the control panel, the input termination block terminal of control panel, the output termination motor of control panel, between block terminal and the control panel, all be connected through shielded cable between control panel and the motor, shielded cable's shielding layer all connects to ground, wherein: the one end cable shield layer that shielded cable is close to the block terminal between block terminal and control panel is through first ground connection component ground connection, near the other end cable shield layer directly grounded of control panel, shielded cable passes through second ground connection component ground connection near the one end cable shield layer of control panel between control panel and motor, and shielded cable is close to the other end cable shield layer directly grounded of motor. The utility model discloses an improve former system or branch system and part, can effective energy -conserving, improve production efficiency or improve product quality etc. In the aspect of improved performance.
Description
Technical field
The utility model relates to forming machine, particularly relates to and is applicable to the shaping former system of hard cheese based food or its subsystem and parts.
Background technology
Hard cheese be by curdled milk heat after solidified again, the shaping raw material milk cheese obtained.Due to the factor of material characteristic, existing former is difficult to realize metering, charging, shaping and discharging are worked continuously.In addition, existing former adopts common electric machine to drive, and electric power is large, does not meet power conservation requirement, and control precision and effect not ideal enough.Therefore, be necessary that the technical scheme with regard to former is improved, at least to improve above-mentioned performance in a certain respect, meet the requirement in hard cheese processing market thus.
Utility model content
For the defect that prior art exists, the object of the utility model embodiment is to improve former system and subsystem thereof or parts, to improve the performance of former.
For solving above technical problem, the utility model embodiment provides a kind of shielded type cable ground structure of former electric-control system, this former comprises the feed hopper be arranged on former body, metering device, feed arrangement, shaped device and drawing mechanism, feed hopper is connected to the feed station of feed arrangement by feed pipe, metering device is arranged between feed hopper and feed arrangement, feed arrangement connects the charging aperture of shaped device, drawing mechanism connects the discharging opening of shaped device, metering device, feed arrangement, the control cubicle of shaped device and drawing mechanism electrical connection former controls metering, charging, the continuous operation of shaping and discharging, former electric power system comprises civil power/solar electric power access device and distribution box, former electric-control system comprises control panel, the input termination distribution box of control panel, the output termination motor of control panel, all be connected by shielded type cable between distribution box with control panel, between control panel with motor, the screen of shielded type cable is all connected to ground, wherein: between distribution box and control panel, shielded type cable passes through the first earth element ground connection, near the direct ground connection of other end cable shield of control panel near one end cable shield of distribution box, between control panel and motor, shielded type cable is near one end cable shield of control panel by the second earth element ground connection, and shielded type cable is near the direct ground connection of other end cable shield of motor.
Compared with prior art, the former of the utility model embodiment is integrated with metering device, shaped device, feed arrangement and drawing mechanism etc., material can be directly formed to preset shape, its metering, charging, shaping and discharging can continous way complete, shape of product, uniform specification, can enhance productivity, and contribute to ensureing product quality.This former driven object is less, and can by solar powered, and under identical output, electric power is lower, and energy-saving effect is obvious.In addition, this former have employed converter technique, controls convenient, accurate, is conducive to improving product quality.
Accompanying drawing explanation
Fig. 1 a be the forward median plane of the utility model embodiment former partly cut open figure;
Fig. 1 b be the side direction median plane of the utility model embodiment former partly cut open figure;
Fig. 1 c is A-A cutaway view in Fig. 1 a;
Fig. 1 d is B-B cutaway view in Fig. 1 a;
Fig. 2 is the block diagram of the utility model embodiment electric power system;
Fig. 3 is the block diagram of the utility model embodiment civil power/solar electric power access device;
Fig. 4 is the theory diagram of the utility model embodiment solar power supply apparatus;
Fig. 5 is the structural representation of the utility model embodiment solar cell;
Fig. 6 is the schematic block circuit diagram of the utility model embodiment controller for solar;
Fig. 7 is the schematic block circuit diagram of the utility model embodiment storage battery;
Fig. 8 is the circuit theory diagrams of the utility model embodiment inverter circuit;
Fig. 9 is the utility model embodiment distribution box body general assembly drawing;
Figure 10 is the rearview of Fig. 9;
Figure 11 is the rearview that Fig. 9 removes postnotum;
Figure 12 is the front view of the utility model embodiment wiring structure of distribution box;
Figure 13 is the rearview of Figure 12;
Figure 14 is the front view of the utility model embodiment distribution box line structure;
Figure 15 is the right view of Figure 14;
Figure 16 is the vertical view of Figure 14;
Figure 17 is the upward view of Figure 14;
Figure 18 is the schematic diagram of distribution box hanger;
Figure 19 is the schematic diagram of the utility model embodiment the utility model vertical power distribution case;
Figure 20 is the schematic diagram of the hanging distribution box of the utility model embodiment;
Figure 21 is the block diagram of the utility model embodiment electric-control system;
Figure 22 is the electrical principle block diagram of the utility model embodiment control panel;
Figure 23 is the earthing mode of the utility model embodiment shielded type cable;
Figure 24 is the schematic diagram of the utility model embodiment shielded type cable.
Embodiment
In order to understand know-why of the present utility model and the course of work better, come to be described in detail the utility model further below in conjunction with drawings and the specific embodiments.
1, the mechanical structure of former
See Fig. 1 a ~ Fig. 1 d, it is the structural representation of the utility model former.This former takes in-line arrangement, be made up of former body, feed arrangement, metering device, shaped device, drawing mechanism, control cubicle (Fig. 1 a ~ Fig. 1 d is not shown) etc., wherein: metering device, feed arrangement, shaped device and drawing mechanism are installed on former body; Feed arrangement connects the charging aperture of shaped device, the material measured by metering device is joined shaped device; Shaped device comprises mould material being stamped into preset shape product, specifically can be pie or other shape; Drawing mechanism connects the discharging opening of shaped device, to be pushed into by product on outside pipeline; Metering device, feed arrangement, shaped device and drawing mechanism control by the control cubicle of former, control these parts thus by predetermined logic action, to realize the continuous operation of metering, charging, shaping and discharging.
As shown in Fig. 1 a ~ Fig. 1 d; former body is provided with the vertical axis of guide 001; fixed installation upper mold base plate 010, middle mould determine plate 006 and lower mold base plate 002 above; the patrix that is slidably installed moves plate 009 and counterdie moves plate 004, and wherein patrix moves plate 009 and counterdie and moves to install respectively between plate 004 and the axis of guide 001 and slide copper sheathing 011 and slide copper sheathing 028.
Mould in former is made up of mobile patrix, fixing middle mould and mobile counterdie, wherein: in fixing, mould location and installation is on the axis of guide 001, and mobile patrix and mobile counterdie respectively slidingtype are arranged on the axis of guide 001.In fixing, mould 007 is provided with the some middle mold cavity of up/down perforation, and mobile patrix is provided with some patrix drifts 008 (die head for Compress Spring) that can enter middle mold cavity, and mobile counterdie is provided with can counterdie top 004 bottom closed mold tool chamber.Come directly towards the action of 004 by patrix drift 008 and counterdie, finally realize material punch forming.Product after shaping is spued to counterdie by middle mold cavity bottom and comes directly towards on 004, passes out on outside pipeline eventually through drawing mechanism.
Particularly, patrix drift 008 is arranged on patrix and moves on plate 009 and form mobile patrix, upper cylinder (or cylinder) 013 two ends connect mould respectively and move plate 009 and upper mold base plate 010, make this patrix move plate 009 and are driven by the upper cylinder 013 be supported in upper mold base plate 010 and realize moving up and down; In fixing, mould 007 is connected and is arranged on middle mould and determine on plate 006, and in this, mould determine plate 006 and is fixedly mounted on the axis of guide 001, realizes the location and installation of fixing middle mould 007; Counterdie top 004 is arranged on counterdie and moves on plate 005; lower oil cylinder (or cylinder) 003 two ends connect counterdie respectively and move plate 005 and lower mold base plate 002, make this counterdie move plate 005 and are driven by the lower oil cylinder (or cylinder) 003 be supported in lower mold base plate 002 and realize moving up and down.Like this, under the driving of upper cylinder 013, lower oil cylinder 003, make the action of patrix drift 008 and counterdie top 004 respectively, make material forming be preset shape.
Two cover feed arrangements can be symmetrical arranged in the present embodiment, often overlap feed arrangement and comprise feedboard 017, feed lead rail frid 016 and charging cylinder 020, feed lead rail frid 016 is installed on former body, feedboard 017 is connected with charging cylinder 020 by cylinder connector 019, round pin 018, can be driven by charging cylinder 020 and slide along feed lead rail frid 016, material is pushed into the reinforced station at mould top.
Drawing mechanism comprises reclaiming plate 023, discharge guide frid 022 and discharging cylinder 025, discharge guide frid 022 is installed on former body and (is supported by square steel 026 and gusset 027), reclaiming plate 023 is connected with discharging cylinder 025 by cylinder connector 24, round pin, can be driven by discharging cylinder 025 and slide along discharge guide frid 022, thus discharging station (the being counterdie top here) product bottom mould is pushed on pipeline and sends.Especially, reclaiming plate 023 is provided with flexible glue (scheming not shown), to clean the parts bottom mould when discharging simultaneously.
Former is provided with feed hopper 012 and metering device, and described metering device is arranged between feed hopper 012 and feed arrangement, accurate to ensure each product charging.Specifically: feed hopper 012 is arranged on former body, and it is connected to the feed station of feed arrangement by feed pipe 014; The jigger 029 of bottom opening is arranged on the feedboard 017 of feed arrangement as volumetric metering device, for feed arrangement at the charging mouth of pipe 015 carrying material, and in feed station, material is freely fallen into above-mentioned mould.Correspondingly, the spiral agitator (scheming not shown) driven by motor M is installed in feed hopper 012, equably material is joined in jigger 029, when jigger 029 moves on fixing middle mould 006, carry out shaping in the middle mold cavity that material drops into.
The former of the utility model embodiment adopts hydraulic pressure or baric systerm to control, and pressure size can make corresponding adjustment according to the difference of material, to meet Production requirement.This equipment adopts volumetric metering, and can realize continous way and produce, its course of work is very simple.
The forming process of this equipment is: material enters in feed hopper 012, and this feed hopper 012 li is provided with spiral agitator, can ensure in the jigger that material can fill up in feedboard 017 uniformly like this; Then be pushed in the jigger 029 in mould above fixing middle mould 007 by charging cylinder 020, material falls into the mold cavity of fixing mould 007 under gravity automatically; Patrix moves the moved downward of plate 009 at oil hydraulic cylinder, makes patrix drift 008 enter in middle mold cavity, under oil pressure effect, makes material forming; Then counterdie moves plate 005 and moves downward, because patrix drift 008 is the die head with spring, therefore mold cavity in material can being released under its own resilient, last material stop is on counterdie top 004; Promote reclaiming plate 023 finally by discharging cylinder 025 and material is released equipment, simultaneously because reclaiming plate 023 being provided with the flexible glue of clean counterdie top 004, can clean counterdie top 004, avoiding that material is unlikely to when post forming thus cannot discharging on adhesive mould simultaneously.After this circulation terminates, again can feed in raw material and enter the circulation of next production process.
Above-described embodiment former has following characteristics: (1) accurate measurement; (2) at work equipment die is cleaned; (3) blanking part carries out, from vibrations, making uniform blanking; (4) shaping smoother is complete.Its structure is simple, and cost is lower, has good market prospects.
Above the mechanical structure of former is described in detail.On this basis, the utility model is also optimized the electric power system of former and electric-control system, is described in detail as follows.
2, the electric power system of former
See Fig. 2, it is the block diagram of the utility model former electric power system.This former is double mode power supply, its electric power system comprises civil power/solar electric power access device 100 and distribution box 200, civil power/solar electric power access device 200 is powered to distribution box 200 by mains power supply or solar power supply apparatus, the outlet terminal of this distribution box 200 is connected to motor M through control panel 300, drive motors M operates thus, is below described in detail.
See Fig. 3, the block diagram of the utility model civil power/solar electric power access device is shown.This civil power/solar electric power access device 100 comprises solar power supply apparatus 110, mains power supply 120 and confession electrical switching device 130, wherein solar power supply apparatus 110 and mains power supply 120 are connected to the input for electrical switching device 130 respectively, output for electrical switching device 130 is connected to distribution box 200, solar power supply apparatus 110 output AC electricity, it and mains power supply 120 are connected to for electrical switching device 130 together to select different supply power modes, electric power after changing for electrical switching device 130 exports distribution box 200 to, through the outlet terminal output power of distribution box 200, to carry out drive motors M.
See Fig. 4, the theory diagram of the utility model solar power supply apparatus is shown.This solar power supply apparatus 110 comprises solar cell 111, controller for solar 112, storage battery 113, inverter circuit 114, solar cell 111 is preferably thin-film solar cells, controller for solar 112 has charging circuit 1121, discharge circuit 1123 and control circuit 1122, charging circuit 1121 is connected between solar cell 111 and storage battery 113, discharge circuit 1123 is connected between storage battery 113 and inverter circuit 114, control circuit 1122 connects charging circuit 1121 respectively, discharge circuit 123 and storage battery 113, inverter circuit 114 is connected to for electrical switching device 130.
In the diagram, solar cell 111 is the core of solar power supply apparatus 110, and its effect is that the radianting capacity of the sun is converted to electric energy, or is sent in storage battery and stores, or pushing motor work.The effect of controller for solar 112 is the operating states controlling whole system, and storage battery is played to the effect of additives for overcharge protection, over.The effect of storage battery 113 is the electrical power storage sent by solar cell when there being illumination, and it's time to needs to discharge again.
See Fig. 5, the structural representation of the utility model solar cell is shown.Thin-film solar cells 111 comprises the first electro-conductive glass substrate 1111, deposit absorbent layer 1112, resilient coating 1113, conductive silver glue 1114 and the second electro-conductive glass substrate 1115, wherein: the first electro-conductive glass substrate 1111, deposit absorbent layer 1112, resilient coating 1113, conductive silver glue 1114 and the second electro-conductive glass substrate 1115 from top to bottom set gradually; Extraction electrode (scheming not shown) in first electro-conductive glass substrate 1111 and the second electro-conductive glass substrate 1115, be generally that the first electro-conductive glass substrate 1111 draws positive electrode above, the second electro-conductive glass substrate 1115 draws negative electrode above.
In Fig. 5, the specification of above-mentioned each layer can be: the length of the first electro-conductive glass substrate 1111, second electro-conductive glass substrate 1115 is 40mm, and width is 15mm, and thickness is 3mm; Deposit absorbent layer 1112 is made for semiconductor nano material, and length is 30mm, and width is 15mm, and thickness is 2 × 10
-3mm; Resilient coating 1113 is In
2s
3material is made, and length is 25mm, and width is 15mm, and thickness is 4 × 10
-3mm; The length of conductive silver glue 1114 is 20mm, and width is 15mm, and thickness is 2 × 10
-3mm.Setting like this, material consumption is few, manufactures energy consumption low, and has excellent effect at the aspect of performance such as voltage improving battery.
See Fig. 6, the schematic block circuit diagram of the utility model controller for solar is shown.This controller for solar 112 comprises charging circuit 1121, discharge circuit 1123, control circuit 1122 and lightning protection circuit 1124, and charging circuit 1121, discharge circuit 1123 and storage battery 113 are in parallel, and lightning protection circuit 1124 and storage battery 113 are connected.Owing to adding lightning protection circuit 1124, the thunder-strike current flowing through storage battery 113 greatly reduces.
Lightning protection circuit 1124 in the present embodiment is specially lightning protection inductance, and the thunder-strike current flowing through storage battery 113 after adding this lightning protection inductance greatly reduces; Meanwhile, the induction reactance of this lightning protection inductance much larger than accumulator internal resistance, thus at storage battery 113 two ends a point residual voltage also greatly reduce, also enhance the lightning protection capability of system like this.In addition, also can to connect respectively lightning protection inductance in charging circuit 1121, discharge circuit 1123, to improve lightning protection capability further.
See Fig. 7, the schematic block circuit diagram of the utility model storage battery is shown.This storage battery 113 comprises accumulator body 1131, cell managing device 1132, data/address bus 1133, auxiliary power supply bus 1135 and auxiliary charging control line 1134, and wherein the positive pole of accumulator body 1131 is connected with cell managing device 1132 respectively with negative pole.Further illustrate as follows.
In Fig. 7, this cell managing device 1132 comprises the detection control unit 11321 be connected respectively with the positive pole of accumulator body 1131 and negative pole and the supplemental charging unit 11322 be connected respectively with negative pole with the positive pole of accumulator body 1131, and detection control unit 11321 is connected with supplemental charging unit 11322; Data/address bus 1133 is connected with detection control unit 11321; Auxiliary power supply bus 1135 is connected with supplemental charging unit 11322; Auxiliary charging control line 1134 is connected with the output of detection control unit 11321; Detection control unit 11321, for detecting the running status of accumulator body 1131 in real time, when the real-time voltage of accumulator body 1131 is less than threshold voltage, charged by auxiliary power supply bus 1135 pairs of accumulator bodies 1131 by supplemental charging unit 11322.
In the present embodiment, detection control unit 11321 can detect the state of accumulator body 1131, and carry out discharge and recharge operation to this accumulator body 1131 under the coordinative role of supplemental charging unit 11322, thus storage battery entirety is made all to remain on desirable balance of voltage state.Storage battery so both can be made to keep active, the state of the balance of voltage can have been reached again, and be unlikely to occur to overcharge or the state of charge less, which thereby enhance the life-span of storage battery.
See Fig. 8, the circuit theory diagrams of inverter circuit of the present utility model are shown.This inverter circuit 114 comprises power tube driving chip, and this power tube driving chip is connected to microcontroller circuit (MCU/DSP), so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter circuit 114 comprises six power tube Q1 ~ Q1, and these six power tubes are divided into three groups, and every group power control to cross streams exports.
The concrete connected mode of each power tube is: the source electrode of power tube Q1, Q2, Q3 connects one end of DC power supply jointly, the drain electrode of power tube Q4, Q5, Q6 connects the other end of DC power supply jointly, the connection of the drain electrode of power tube Q1 and the source electrode of power tube Q4 supplies the U phase terminal of electrical switching device 130, the connection of the drain electrode of power tube Q2 and the source electrode of power tube Q5 supplies the V phase terminal of electrical switching device 130, the drain electrode of power tube Q3 to be connected the W phase terminal for electrical switching device 130 with the source electrode of power tube Q6; The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 connects an output of power tube driving chip respectively, and each input of this power tube driving chip controls by output pulse width conditioning signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel of microcontroller circuit respectively.Corresponding access diode D1 ~ D6 between the source electrode of these six power tube Q1 ~ Q6 and drain electrode.
During start, microprocessor produces corresponding 6 road pulse width modulating signals according to the motor speed of setting, i.e. drive singal PWM1 ~ PWM6; 6 power tube (MOSFET or IGBT) Q1 ~ Q6 of inverter inverter circuit 114 are driven by power tube driving chip; The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, output voltage is adjustable, the three-phase alternating current of changeable frequency, inputs to for electrical switching device 130.
Simultaneously see Fig. 9 ~ Figure 11, it is the total assembling structure of the utility model embodiment distribution box body.The casing of this distribution box 200 is provided with service entrance switch room, kilowatt-hour meter room and outlet switch room: service entrance switch room is provided with door-plate 201 and rear shrouding, and service entrance switch mounting panel 2012 is established in indoor; Kilowatt-hour meter room is provided with shrouding 207 behind door-plate 202 and kilowatt-hour meter room, and electric meter installation board 2010, electric meter installation board 2011 are established in indoor, and wherein door-plate 202 can arrange lead sealing 204 and coded lock 205, in case other people illegally open above; Outlet switch room is provided with shrouding 206 behind door-plate 203 and outlet room, and indoor set out the mounting rail 208 of wiretap, and pulling buckle is with by this outlet switch room shrouding 206, can facilitate On/Off.This wall box establishes nameplate to identify product, and rear wall corner arranges the mounting structure of distribution box hanger formula, to install the casing of distribution box, below further illustrates.
See Figure 12-Figure 13, it is the wiring structure of distribution box of the utility model embodiment.Described distribution box adopts upper, middle and lower to be divided into the layout of three Room, wherein: top is service entrance switch room S1, is provided with a lead-in circuit breaker 2015, is connected to kilowatt-hour meter room S2 with cable 2021; Middle part is kilowatt-hour meter room S2, is provided with some kilowatt-hour meters 2016; Bottom is outlet switch room S3, is provided with earthing bar, ensures that outlet ground connection is convenient.
As shown in Figure 12 ~ Figure 13, kilowatt-hour meter room S2 is provided with electric mounting board 2019, and kilowatt-hour meter 2016 is installed on the front side of electric mounting board 2019; And the turnover cabling of distribution box is cabling after the plate of electric mounting board 2019, this contributes to saving copper conductor consumption further.In addition, electric mounting board 2019 is provided with bus-bar mounting bar 2022 and lower bus-bar mounting bar 2023, the two ends of bus-bar 2018 are respectively installed on bus-bar mounting bar 2022 and lower bus-bar mounting bar 2023, are convenient to install, fix bus-bar 2018.
The utility model is provided with bus-bar at the rear side of distribution box, and lead-in circuit breaker 2015 is connected with bus-bar 2018 with kilowatt-hour meter 2016.Be connected by wire between bus-bar 2018 with lead-in circuit breaker 2015; And the cable 2017 inlet wire side of kilowatt-hour meter 2016 is connected with bus-bar 2018, outgoing line side is connected with outlet air switch.Because being connected mainly through bus-bar 2018 between lead-in circuit breaker 2015 with kilowatt-hour meter 2016, more copper conductor can be saved.Can reduce like this and connect wire consumption, on the one hand escapable cost, solve the difficulty of cabling bundle line on the other hand.
Simultaneously see Figure 14 ~ Figure 17, for adopting the more excellent example of the utility model distribution box line structure.Described distribution box S adopts upper, middle and lower to be divided into the layout of three Room, wherein: top is service entrance switch room S1; Middle part is kilowatt-hour meter room S2; Bottom is outlet switch room S3.Service entrance switch room S1, kilowatt-hour meter room S2 and S3 tri-Room, outlet switch room separated from each other, appearance looks elegant simplicity generosity; Also be convenient to adopt modular design, for changing some elements separately, only need change correlated parts and just can use, and without the need to large-scale change, a lot of design time can be saved, also bringing great convenience to processing and manufacturing; Especially, the operation stability of the relatively original distribution box of distribution box is better, and fail safe improves.
As shown in Figure 14 ~ Figure 17, the top board 2024 of service entrance switch room S1 arranges some top board wire inlet/outlet holes 2025, they are top board circular hole and top board square hole, wherein: top board circular hole is through hole; Top board square hole is knock down hole.The base plate 2026 of outlet switch room S3 arranges some base plate wire inlet/outlet holes 2027, and they are base plate circular hole and base plate square hole.When distribution box is wall hanging installation and line is exposed conduit, the less circular hole of base plate or top board square hole can be knocked out, thus realize the bottom of distribution box or the line of the mode such as top or top and the bottom combination; By the larger square hole abate of base plate, then can realize the bottom line that distribution box lands when installing; The multiple mounting modes of distribution box, multiple line mode can be taken into account like this, thus realize the batch Prefabrication of distribution box and the peculation of user.
See Figure 18, it is the schematic diagram of the utility model distribution box hanger.This distribution box hanger is applicable to vertical power distribution case and hanging distribution box, this distribution box hanger comprises " L " template 2014, the first side plate wherein and the second side plate offer a lifting hole(eyelet) 20141 and multiple installing hole 20142, wherein can run through screw or bolt etc. securing member, thus " L " template 2014 is installed on the casing of distribution box.Installing hole 20142 is wherein multiple circular hole, or is multiple square hole, also can be an oblong slots.Be convenient to like this adjust described " L " the assembling height of template 2014 and distribution box body, thus the versatility of increase mounting structure.This mounting structure can fold the first side plate and the second side plate by sheet metal or other material, forms one " L " template 2014 thus, then on first side plate and the second side plate of " L " template, offers lifting hole(eyelet) 20141 and installing hole 20142.Certainly, described " L " template 2014 is also made by forging type, does not repeat them here.
In the utility model, the distribution box hanger 2014 as mounting structure coordinates with vertical power distribution case or hanging distribution box by different angle of assembling, thus meets the installation requirement of these two kinds of distribution boxs:
See Figure 18, it is the schematic diagram of the utility model vertical power distribution case.During the assembling of this vertical power distribution case, be fixed on casing S by one of them side plate of " L " template 2014, another side plate stretches out outside casing, so as with wall or, compartment or other construction sidewall fix.The setting height(from bottom) of described " L " template 2014 and the upper and lower along concordant of casing S, also can adopt other setting height(from bottom) certainly.
See Figure 20, it is the schematic diagram of the hanging distribution box of the utility model.During this hanging distribution box assembling, two side plates of " L " template are fixed on the angle of casing S, and make the lifting hole(eyelet) 20141 on " L " template 2014 expose casing S.After, can by distribution box hanging on wall, compartment or other construction sidewall.Like this, just can coordinate with vertical power distribution case or hanging distribution box as long as change setting angle, thus meet the installation requirement of these two kinds of form distribution boxs, have structure simply, the advantages such as convenient, safe and reliable, versatility is good are installed.
3, the electric-control system of former
See Figure 21, the block diagram of the utility model electric-control system is shown.Electric-control system comprises control panel 300, the input termination distribution box 200 of control panel 300, and output connects the motor M of former, and this control panel 300, when distribution box 200 output current, can drive the motor M as AC load to operate; The first earth element 310 and the second earth element 320 is accessed at the two ends of this control panel 300 respectively, lightning current is introduced the earth, improves the fail safe of system thus.
The present embodiment comprises secondary lightning protection circuit, and specifically the first earth element 310 is closed spark gap, and between the input being connected to control panel 300 and earth terminal, lightning current of can releasing can reach 20KA; Second earth element 320 is discharge tube, between the output being connected to control panel 300 and earth terminal, the fraction thunder-strike current flowing through control panel 300 is discharged further, namely a current limliting is remake to the residual voltage entering motor M, make it lower than specified safe range.This just can make most of thunder-strike current be released by the first earth element of control panel 300 input, the second earth element that control panel 300 output is arranged then can make the residual voltage entering load less, thus be conducive to preventing load to be struck by lightning, improve its safety in utilization, extend its useful life.
The first above-mentioned earth element, the second earth element all can select the earth resistance of Zinc-oxide piezoresistor or other type to replace, and have good lightning protection effect equally.When lightning current is larger, Zinc-oxide piezoresistor is breakdown, and lightning current flows into earth terminal through Zinc-oxide piezoresistor rapidly, and the residual voltage entering motor M is clamped in preset range.
See Figure 22, the electrical principle block diagram of the utility model control panel is shown.In the major loop of this control panel 300, three phase mains input line L1, L2, L3 are connected to motor lines U1, V1, W1 of the three phase electric machine of motor M through major loop circuit breaker Q F1, A.C. contactor KM; In control loop, the input termination three phase mains input line L2 of control loop circuit breaker Q F2, L3, one of control loop circuit breaker Q F2 exports terminals of termination A.C. contactor KM coil, and another output of control loop circuit breaker Q F2 connects another terminals of A.C. contactor KM coil through inching button SB (1-3).Press inching button SB, A.C. contactor KM coil obtains electric adhesive, and the three-phase main contacts of A.C. contactor KM closes, and motor obtains electric operation, driven equipment work.The time pinning inching button SB is motor crawl duration of runs.Unclamp inching button SB, A.C. contactor KM coil blackout discharges, and the three-phase main contacts of A.C. contactor KM disconnects, and motor dead electricity shuts down, and driven equipment stops.
In order to make lightning current flow through safely in the present embodiment, all connected by shielded type cable between each circuit element, its terminals are screwed, and below further illustrate.
See Figure 23, represent the earthing mode of shielded type cable 330.This shielded type cable 330 is made up of cable core and cable shield, and this cable shield wraps cable core to reduce electromagnetic interference.
Figure 23 illustrates the mode of connection of shielded type cable 330 between distribution box 200 and control panel 300, this shielded type cable 330 passes through the first earth element 310 ground connection near one end cable shield of distribution box 200, and shielded type cable 330 is near the direct ground connection of other end cable shield of control panel 300.
In practical power systems, the length of shielded type cable 330 is generally greater than 20m, and the first earth element 310 therefore can be made to be connected to the position of distance feeder ear (distribution box) 4m ~ 6m.This first earth element 310 can be earth resistance, and particular type can be (certainly also can be other element) such as Zinc-oxide piezoresistors.The resistance of this earth resistance is equal with the equivalent resistance of the cable shield of shielded type cable 330, also can choose separately according to actual conditions.
Ground connection between motor M and control panel 300 can refer to aforesaid way, that is: shielded type cable 330 is near one end cable shield of control panel 300 by the second earth element 320 ground connection, and shielded type cable 330 is near the direct ground connection of other end cable shield of motor M.
In this embodiment, between control panel 300 and distribution box 200, the shielded type cable 330 between motor M and control panel 300 have employed 2 grounding schemes, thus still maintains the good anti-jamming effectiveness of tradition 2 grounding schemes; Because shielded type cable 330 passes through earth element ground connection near one end cable shield of distribution box 200, be conducive to earth current or interference current limliting, the danger of screen is burnt when thus avoid earth-current or disturb excessive, also can reach electromagnetic compatibility effect preferably simultaneously, and negative antenna effect can not be caused.
See Figure 24, represent the concrete structure of the utility model shielded type cable.Be provided with many heart yearns 335 in the external protection 331 of this shielded type cable 330, wherein every root heart yearn is enclosed with inner protective layer 333; Especially, in external protection, 331 layers are provided with cable shield 332, and the inner side of inner protective layer 333 is provided with heart yearn screen 334.
Because the heart yearn of shielded type cable 330 and cable self all arrange screen, the interference in interference between heart yearn and the external world can be suppressed, specifically: the heart yearn of shielded type cable all devises heart yearn screen, the electromagnetic radiation being conducive to suppressing to produce between heart yearn, electrostatic coupling and electromagnetic induction; Cable self arranges cable shield, is conducive to suppressing outside electromagnetic interference; These two aspects factor, eliminates the interference that dynamical system shielded type cable produces preferably, is conducive to the accuracy ensureing data.
Preferably, the two ends ground connection respectively of cable shield 332 and heart yearn screen 334, effectively to reduce interference source.More preferably, be make cable shield 332 and heart yearn screen 334 near one end of distribution box 200 by the first earth element 310 ground connection, cable shield 332 and or heart yearn screen 334 near the direct ground connection in one end of motor M.
The former that the utility model provides and subsystem or parts, can at least improving product quality, enhance productivity and environmental protection and energy saving some in improve systematic function, its structure is simple, and compact in design, cost is lower, has good market prospects.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection range of the present utility model should define with the utility model claim is as the criterion.
Claims (5)
1. the shielded type cable ground structure of a former electric-control system, this former comprises the feed hopper be arranged on former body, metering device, feed arrangement, shaped device and drawing mechanism, feed hopper is connected to the feed station of feed arrangement by feed pipe, metering device is arranged between feed hopper and feed arrangement, feed arrangement connects the charging aperture of shaped device, drawing mechanism connects the discharging opening of shaped device, metering device, feed arrangement, the control cubicle of shaped device and drawing mechanism electrical connection former controls metering, charging, the continuous operation of shaping and discharging, it is characterized in that, former electric power system comprises civil power/solar electric power access device and distribution box, former electric-control system comprises control panel, the input termination distribution box of control panel, the output termination motor of control panel, all be connected by shielded type cable between distribution box with control panel, between control panel with motor, the screen of shielded type cable is all connected to ground, wherein: between distribution box and control panel, shielded type cable passes through the first earth element ground connection, near the direct ground connection of other end cable shield of control panel near one end cable shield of distribution box, between control panel and motor, shielded type cable is near one end cable shield of control panel by the second earth element ground connection, and shielded type cable is near the direct ground connection of other end cable shield of motor.
2. the shielded type cable ground structure of former electric-control system as claimed in claim 1, it is characterized in that, shaped device comprises mould material being stamped into preset shape product, and mould comprises mobile patrix, fixing middle mould and mobile counterdie; In fixing, mould is provided with the some middle mold cavity of up/down perforation, and mobile patrix is provided with some patrix drifts with Compress Spring die head that can enter middle mold cavity, and mobile counterdie is provided with can counterdie top bottom closed mold tool chamber.
3. the shielded type cable ground structure of former electric-control system as claimed in claim 2, it is characterized in that, feed arrangement comprises feedboard, feed lead rail frid and charging cylinder, feed lead rail frid is installed on former body, feedboard can be slided along feed lead rail frid by charging air cylinder driven, material is pushed into the reinforced station at mould top.
4. the shielded type cable ground structure of former electric-control system as claimed in claim 3, it is characterized in that, drawing mechanism comprises reclaiming plate, discharge guide frid and discharging cylinder, discharge guide frid is installed on former body, reclaiming plate can be slided, to be pushed on pipeline by the discharging work station product bottom mould along discharge guide frid by discharging air cylinder driven.
5. the shielded type cable ground structure of former electric-control system as claimed in claim 4, it is characterized in that, metering device comprises the jigger of bottom opening, this jigger is that feed arrangement carries material in charging mouth of pipe position as volumetric metering device, and in feed station, material is freely fallen into described mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449395.3U CN204834145U (en) | 2015-06-26 | 2015-06-26 | Former electrical system's shielded cable ground structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449395.3U CN204834145U (en) | 2015-06-26 | 2015-06-26 | Former electrical system's shielded cable ground structure |
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| CN204834145U true CN204834145U (en) | 2015-12-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958459A (en) * | 2016-06-17 | 2016-09-21 | 北京全路通信信号研究设计院集团有限公司 | Railway signal cable grounding system |
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2015
- 2015-06-26 CN CN201520449395.3U patent/CN204834145U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958459A (en) * | 2016-06-17 | 2016-09-21 | 北京全路通信信号研究设计院集团有限公司 | Railway signal cable grounding system |
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Granted publication date: 20151202 Termination date: 20160626 |
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