CN2506610Y - Power-saving and safety goods elevator - Google Patents

Abstract

A saving labor and safe cargo lift consists of a hoister, a guiding device, a cargo compartment and an electric control device, wherein, the hoister is arranged on the upper part of a channel, the two side walls of the channel under the hoister are provided respectively the guiding device with door frame type, the cargo compartment is arranged between the side walls and can slide up and down, a long steel rope is used for connecting the hoister with the cargo compartment to form a hoist structure with two independent traveling block, which saves power and prevents the rope from breaking, and the circuit of the electric control device adopts a three endpoint security circuit formed by adding a plurality of travel switches on a regular contactor control circuit. Compared with regular standard elevators, the utility model only adds a plurality of machines and electrical equipment components and omits the complicated structure, electric circuit and electrical equipment of the regular standard elevators, such as a counterweight device, a security device, a topping layer and a speed limiting device, etc. Therefore, the utility model is simple in structure, convenient in maintenance, safe and labor-saving and can greatly reduce producing cost.

Description

A kind of laborsaving and safe Cargo Lift

The utility model relates to a kind of Cargo Lift, and particularly a kind of laborsaving and safe Cargo Lift is applicable to the goods transport up and down in the low-rise building.

At present, known Cargo Lift, be in the building on, the cargo lift that carries cargo down, mainly by traction, guiding, car, counterweight, insurance, speed limit and automatically controlled a few part are formed, structure and electric quite complicated, therefore involve great expense, and fault is many, safeguarding needs the professional, so general user, especially small towns, private, individual enterprise is beyond affordability, has limited the development of Cargo Lift, because society is in development, the small towns, private, individual enterprise develops, and the factory building of tier building is also increasing, it is interior and cheap that people are starved of a kind of low-rise building that is installed on, safe and practical Cargo Lift.

The purpose of this utility model provides a kind of laborsaving and safe Cargo Lift, and not only fitting operation is easy, laborsaving, safe and simple in structure, cheap for it, fault is few, and common mechanical worker, electrician can install and safeguard.

The purpose of this utility model is achieved in that by gig, guide piece, four parts such as loading space and electrical controller are formed, gig is to install and fix an electrical motor on a frame, by the worm-gear type reductor of a pair to a double output shaft of wheel mechanical connection, a volume bucket is installed respectively on double output shaft, between electrical motor and the reductor cover magnetic force band-type brake is also installed at the wheel place, its lock seat also is fixed on the frame, and below central rack, fix a fixed pulley, the guide piece that is door case type is installed respectively in the hoistway below frame, go up therebetween, the installation loading space of lower slider, two volume bucket equidistances at its top and gig install and fix two movable pulleys, on both sides, two groups of slide blocks with the guide piece of guide rail bearing fit are installed down, after passing the fixed pulley that is installed under the gig earlier and make the two ends equal in length by a long steel rope like this, be passed down through the movable pulley that is fixed on the loading space top more respectively, return then on two volume buckets that are separately fixed at the gig of standing far apart facing each other with two movable pulleys, also pass behind the fixed pulley and long steel rope and tight with a strap again, respectively in the both sides equidistance with 2 to 3 steel rope jig card jails, realizing strengthening two of section in the middle part, to overlap movable pulley independently laborsaving and prevent the lifting structure of disconnected rope.Electrical controller is that the travel switch back of the end of run up and down in the positive and negative car control circuit of the contactless switch electrical equipment of routine is electrically connected limit switches and a source switch again respectively successively, form triple terminal point safety circuits, so laborsaving and safe Cargo Lift is promptly accused and is finished.The corresponding button of each stop is installed in energized, operation during work, make the electrical motor forward or reverse of gig and drive two volume buckets of the reductor of mechanical connection successively, thereby make two movable pulley upstream or downstream make loading space along track upper and lower operation in hoistway by steel rope, the instruction that stops on request under the travel switch control that is provided with in corresponding stop has realized the Cargo Lift function that loading space moves in hoistway.Since adopted the laborsaving mechanism of movable pulley and separately independently the two covers steel rope stage casings that promote structures and fixed pulley place strengthen short the rope, realized also having opposite side load-bearing and the middle constantly mechanism's security measures of rope and the uplink and downlink terminal point of electrical controller when the disconnected rope of a side, triple terminal point safety circuits of travel switch, prevented in the long-term frequent operational process, machinery or electric parts are malfunctioning, cause the accident, it is perfectly safe to accomplish.

Because adopt such scheme, gig, guide piece, loading space all belong to conventional components, electrical controller has only increased several general travel switches in the circuit of routine.Make simple, cheap, fault is few, he common mechanical, electrician can installs, safeguard.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is the schematic circuit diagram of Cargo Lift of the present utility model.

Fig. 2 is that A, B, C, O are 380 volts of power supplys of three-phase and four-line among Cargo Lift structural representation of the present utility model (the being illustrated as three stops) figure, Z is a manual knife switch, the Cz power contactor, the up contactless switch of Cs, the descending contactless switch of Cx, the up button of SA, the descending button of XA, 1A, 2A, 3A are respectively 1 layer, 2 layers, 3 layers push-botton operation station, 41x, 41z, 41b and 44x, 44z, 44b are respectively and are located in the hoistway travel switch that can be contacted by loading space, be travel switch, limit switches, the source switch of uplink and downlink terminal point, D is electrical motor, 1, gig; 1z, left side volume bucket; 1y, right side volume bucket; The 1p fixed pulley; The 2z left rail; The 2y right rail; 3, loading space; 3z left side movable pulley; 3y right side movable pulley; 3hz left side orienting lug; 3hy right side orienting lug 1D, 2D, 3D, be respectively 1,2,3 stops, J hoistway.

Among Fig. 1, in the positive and negative car control circuit of the contactless switch of routine, be that bottom and top layer travel switch back are electrically connected limit switches and a source switch again respectively successively at the terminal point of uplink and downlink.The energized of earlier manual plug-in strip Z being closed during work, because source switch 41b, 44b make power contactor Cz adhesive energized in normally off, three-phase electricity 380 volts of A, B, C are respectively through manually knife switch Z, power contactor Cz corresponding contacts arrive the open contact of uplink and downlink contactless switch Cs, Cx, at this moment press uplink and downlink button SA or XA, (this button is located at each layer push-botton operation station electricity parallel connection of 1A, 2A, 3A respectively) more as required, make corresponding contact device Cs or Cx adhesive, three-phase electricity connect electrical motor D and make its work rotation.Drive loading space 3 upstream or downstream through mechanical drive.When running to corresponding stop 1D, 2D, 3D and corresponding travel switch 41x, 42x, 43x, 44x (not drawing 42x, 43x among the figure) by just cutting off closed contact after touch.Make corresponding contact device Cs or Cx outage, Cs or Cx contact open make electrical motor D out of service.What stress is the travel switch that contacts earlier 44x or 41x when loading space 3 runs to top layer or bottom (among Fig. 23 layers or 1 layer) respectively, electrical motor is stopped, if 44x or 41x are malfunctioning, electrical motor does not stop, still make loading space 3 continue operation again, the limit switches that contact 44z or 41z more respectively make corresponding contact device Cs or Cx outage that electrical motor D is stopped, just in case the limit switches of contactless switch Cs or Cx or 44z or 41z still are malfunctioning, electrical motor still continues operation, at this moment loading space 3 contacts the source switch of 44b or 41b more respectively, makes power contactor Cz outage, forces electrical motor to stop, reach triple terminal point security measures, perfectly safe.This circuit used electric elements are as knife switch, contactless switch, and button is universal, and travel switch, limit switches, source switch are general common travel switch, as roller type, spring rod-type etc.Also need to prove the positive and negative car control circuit of contactless switch of Fig. 1, simple in structure, element is few, fault is few, but after existing the loading space operation to stop, the problem that can only move round about when reruning, consider that use can meet the demands in the low-rise building, want to continue to move as not satisfying to equidirectional, need to consider increase the intermediate relay scheme or use instead in the middle of stop layer travel switch be instantaneous by and the asc switch that resets, these all belong to custom circuit and device, general electrical engineering handbook all can be found, in this not narration one by one.

Fig. 2 is the example structure scheme drawing of Cargo Lift three stops of the present utility model.

Among the figure, the guide piece 2z that is door case type is installed in the hoistway below the gig 1,2y, 3hz, 3hy, go up therebetween, the installation loading space 3 of lower slider, pass the fixed pulley 1p that is installed under gig 1 frame earlier by a long steel rope, be passed down through two volume bucket 1z that are fixed on loading space 3 tops and gig 1 more respectively after making the two ends equal in length, the movable pulley 3z of 1y equidistance, 3y, return then and be separately fixed at and two movable pulley 3z, 3y, two volume bucket 1z of the gig 1 of standing far apart facing each other, on the 1y, also pass behind the fixed pulley 1p and long steel rope and tight with a strap again, respectively in the both sides equidistance with 2 to 3 steel rope jig card jails, strengthening section in the middle of forming reaches in any case, can be at the disconnected rope of this section, and the steel rope jig can not pass through fixed pulley yet, two volumes of working as gig 1 are disclosed 1z like this, can roll up respectively during the 1y rotation and put steel rope, make loading space 3 on guide piece, following operation, forming two, to overlap independently movable pulley laborsaving and prevent that the disconnected rope of a side from also having the security measures of opposite side load-bearing, loading space 3 can not fallen down, and that ensures public security on the implementation structure is perfectly safe.The steel rope of strengthening section should be suitably longer, so just can play and regulate 2 volume buckets of both sides steel rope solution 1z, 1y serving inequality, makes loading space 3 bevelled problems.

Cargo Lift gig 1 of the present utility model is on a frame, install and fix an electrical motor by the worm-gear type reductor (figure of a pair to a double output shaft of wheel mechanical connection, in do not draw) between volume bucket 1z, a 1y, electrical motor and the reductor cover magnetic force band-type brake is also installed at the wheel place installing respectively on the double output shaft, its lock seat also is fixed on (does not draw) and fixes a fixed pulley 1p below central rack among the figure on the frame.The three-phase type that the electrical motor here adopts (also can adopt the electrical motor of two-phase, just power supply connects a phase less) be hoisting capacity as requested, as a ton hour supporting 2.2 kilowatts or 3 kilowatts, per minute 960 changes or 1440 commentaries on classics all can, 4.5 kilowatts or 5.5 kilowatts of 2 ton hours, revolutions per minute also are that 960 commentaries on classics or 1440 are changeed.Reductor also is the worm-gear type reductor of general-duty double output shaft.As requested speed ratio by 30: 1 or 40: 1 all can, modulus one ton hour 4 moulds, 2 ton hours, 5 moulds.Need to prove that electrical motor, reductor all can select a little bit smaller owing to adopted the labor-saving structure of movable pulley, the magnetic force band-type brake also is the electromagnetic type band-type brake of using always.

Guide piece is by the guide rail 2z, the 2y that are installed in hoistway J side walls and be installed in the upper and lower left and right sides slide block 3Hz in loading space 3 both sides, 3Hy forms and 1 of frame forms the door case type structure.Guide rail 2z, 2y adopts the angle steel manufacturing, 5# as required, 6# all can, and a square edge back every a segment distance, as: 1 meter or 1.5 meters rail chairs that weld an iron plate, during installation with setscrew or give sunk screw, rail chair is fixed on the hoistway both sides, and guarantee the parallel of two guide rails, every as required side can increase by 2, both sides are totally 4 guide rails, to increase the stability of Cargo Lift, left and right sides slide block 3Hz, 3Hy adopts wear resisting cast iron or nylon plastic(s) to make rectangular bulk, and the cross section is spill, the width of concave indentation is matched with guide rail angle steel straight flange thickness reach certain glade plane space, the breach back installs and fixes a cooresponding with it iron plate, for by bolt or be welded on the both sides of loading space 3, the below is so that loading space 3 can be on the guide rail that is fixed on the hoistway both sides, following smooth running, require also can increase by 2 covers with matching according to guide rail, totally 4 cover guide piecees.

Loading space 3 adopts angle steel to make the square box shape of framed structure, install and fix two movable pulleys at the top of case and two volume bucket 1z, 1y equidistances of gig 1, last, back, left and right side in the case adopt methods such as sheet steel rivet or welding to make lining respectively, steel sliding door or closing door are installed as required in front, are spread anti-skidding iron plate or wood covering below.

Claims (5)

1, a kind of laborsaving and safe Cargo Lift is by gig, guide piece, loading space and electrical controller are formed, it is characterized in that: install in the hoistway below the gig and be the door case type guide piece, go up therebetween, the installation loading space of lower slider, pass the fixed pulley that is installed under the lift carriage earlier by a long steel rope, after making the two ends equal in length, be passed down through respectively again and be fixed on loading space top and two equidistant movable pulleys of volume bucket of gig, return then and be separately fixed on two volume buckets of gig of standing far apart facing each other with two movable pulleys, also pass behind the fixed pulley with long steel rope and tightly respectively in the both sides equidistance with a strap again, with 2 to 3 steel rope jig card jails, form the middle part and strengthen section, when two volume buckets of gig rotate, can roll up respectively like this and put steel rope, make loading space on guide piece, following operation, forming two, to overlap movable pulley independently laborsaving and prevent the lifting structure of disconnected rope.

2, according to the desired Cargo Lift of claim 1, it is characterized in that: gig is that an electrical motor is installed on a frame, by the worm-gear type reductor of a pair to a double output shaft of wheel mechanical connection, a volume bucket is installed respectively on double output shaft, between electrical motor and the reductor cover magnetic force band-type brake is also installed at the wheel place, its lock seat also is fixed on the frame, and fixes a fixed pulley below central rack.

3, according to the desired Cargo Lift of claim 1, it is characterized in that: guide piece is by the guide rail that is fixed on the hoistway side walls and be installed in the upper and lower slide block in loading space both sides and form, guide rail adopts angle steel and welds a support every a segment distance, slide block adopts wear resisting cast iron or nylon plastic(s) to make rectangular bulk, the cross section is spill, the width of concave indentation is matched with the limit of guide rail angle steel is thick, reach certain glade plane space, also can increase by 2 cover guide piecees as required.

4, according to the desired Cargo Lift of claim 1, it is characterized in that: loading space adopts angle steel to make the square box shape of framed structure, top and two volume buckets of gig equidistance at case install and fix two movable pulleys, last, back, left and right side in the case adopt methods such as sheet steel rivet or welding to make lining respectively, install steel sliding door or closing door as required in front, spread anti-skidding iron plate or wood covering below.

5, according to the desired Cargo Lift of claim 1, it is characterized in that: electrical controller is electrically connected limit switches again respectively in the travel switch back of the upper and lower end of run and a source switch forms triple terminal point safety circuits successively in the positive and negative car control circuit of the contactless switch electrical equipment of routine.

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