CN2263643Y

CN2263643Y - Vertical moved electromagnetic elevator

Info

Publication number: CN2263643Y
Application number: CN 96235333
Authority: CN
Inventors: 杨声利; 魏任克
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-24
Filing date: 1996-07-24
Publication date: 1997-10-01
Anticipated expiration: 2006-07-24

Abstract

The utility model relates to a vertical moved electromagnetic elevator, which is composed of a head sheave, a derrick, a suspension cage, drawing steel cables, and a linear motor in the form of drive. The secondary electrode of the linear motor is fixed on the derrick, and the primary electrode of the linear motor is fixed on the suspension cage, a platform, or a counterweight iron, or the suspension cage, the platform, and the counterweight iron. A gap remain between the primary electrode of the linear motor and the secondary electrode of the linear motor. The utility model has the advantages of compact structure, reasonable design, low cost, stable running, flexible control, convenience, and energy saving and can be widely used for the lifters of the construction, freight transportation, personnel transportation, underwater operation. The utility model can also be used for the poor environment of dust pollution.

Description

The electromagnetic lifter of vertical operation

The utility model relates to the electromagnetic lifter of a kind of elevator, particularly a kind of vertical operation.

Elevator domestic at present, external perpendicular movement is the elevator of the deceleration of secondary planar envelope worm gear pairs, rack-and-gear transmission or the transmission of high-rise high-speed hydraulic machinery.They all have, and complex structure, cost height, noise are big, vibration is big, driving efficiency is low, heating is serious, and shortcomings such as leakage of oil, fault are many, service expenditure height often take place.Preresearch estimates, only the productive costs of four of worm gear reducers, rack-and-gear, velocity limiter, motor accounts for 40% of complete machine cost.

The purpose of this utility model provides a kind of be used as power electromagnetic lifter of vertical operation in source of linear electric motors that adopts.

Task of the present utility model realizes with following mode: the utility model by head sheave, derrick, cage, drag and draw steel rope and constitute, linear electric motors are secondary to be fixed on the derrick, elementary cage or platform place or counterweight iron place or cage or platform and counterweight iron place, the gapped δ between linear electric motors are elementary and secondary of being installed in of linear electric motors.Linear electric motors secondary is separately fixed on every derrick joint, becomes continuous linear electric motors secondary on the derrick that derrick joint closed assembly becomes.The linear electric motors that be equipped with at cage or platform or counterweight iron place are elementary one or more.The gap delta value is 0.5mm to 3.5mm.The secondary installation site of linear electric motors becomes substantially parallel placement or basic vertically placement with the derrick side.The linear electric motors secondary materials is aluminium sheet or copper coin or copper base-steel bi-metal plate or steel plate.Linear electric motors are elementary to be installed in the secondary side of linear electric motors or to become relative symmetry to install in the secondary two sides of linear electric motors.

These facility have compact conformation, mechanism design reasonable, because the ingenious cooperation of having used linear electric motors or many linear electric motors causes this building hoist to be different from other various building hoists.And have following advantage:

1, rise dynamicthrust big, do not have centnifugal force, be not subjected to speed limit, therefore can realize quickening on a large scale and slow down (braking), in the required speed range of building hoist (about 1-1.5m/ second) make full use of the end effect of linear electric motors, can increase thrust significantly.

2. because of not having mechanical deceleration system and hydraulic machinery driving system, thereby can realize the synchro control and the control of selectivity permutation and combination of many linear electric motors, reaching the optimum matching of load and required horsepower output, energy savings, and can realize operating dynamical equilibrium substantially.

3. there are not mechanical retarder and rack-and-gear transmission, hydraulic machinery driving device, promptly there is not switching mechanism, transmission efficiency is 1, and makes that overall structure is simple, pulse free load, friction, noiseless, in light weight, easy-maintaining, operates steadily, and has improved running quality and has reduced service expenditure.

4. owing to be that non-adhesion drives,, also can carry out high low-speed running even adhere to greasy dirt on the secondary conductor so the kinetoplast quality can be made small and exquisitely.Linear electric motors are epoxy resin molded product, so, moisture resistance, antivibration, strong, the electric reliability height of corrosion stability, so need not often safeguard.

5. control circuit preceence simple, the running operation performance is as follows:

1. can carry out many linear electric motors synchro control and selectivity combination synchro control, be quick on the draw.

2. in given scope, can free adjustment thrust.

3. can obtain the identical thrust of advancing, retreating.

4. if the design speed controllable function, can adopt the speed control method of silicon control regulating voltage, thereby not have noise, need not fuel feeding, contact pointless, need not safeguard.

6. building ground, the harsh environment that dust etc. pollute and use under water especially aptly.Also be suitable for and make goods transport and personnel transport elevator.

Single cage electromagnetic lifter scheme drawing of this machine of Fig. 1

The double-cage electromagnetic lifter scheme drawing of this machine of Fig. 2

Fig. 3 is the A-A cross sectional plan view of Fig. 1

Fig. 4 is the B-B cross sectional plan view of Fig. 1

Fig. 5 is the C-C cross sectional plan view of Fig. 2

Fig. 6 is Fig. 1 list cage derrick joint shaft side figure

Fig. 7 is Fig. 2 double-cage derrick joint shaft side figure

Below in conjunction with accompanying drawing the utility model is described in further detail: embodiment one, single cage-lifter.

Cage 8 is connected by steel rope 2 with counterweight iron 4, be suspended in the two sides, derrick 12 front and back of derrick joint (see figure 6) stack composition relatively by head sheave 1 before, by the column closed contact guiding on separately track adjusting wheel 7 and the derrick 12 on it, make eight linear electric motors elementary 3 that are installed in respectively in cage 8 and the counterweight iron 4 relative gap δ be arranged with the parallel linear electric motors secondary 5 that are fixed on derrick 12 opposite flanks, the δ value is 1-2mm, and secondary 5 materials of linear electric motors are aluminium sheet.Steel rope balancer 6 is to change according to adjustable height to receive rope or put rope device, and this device is connected with cage 8 through support 11.Guide frame 10 is installed on the cage 8, and track adjusting wheel 7 is equipped with in configuration on it.Buffer spring group 9 is when cage drops to extreme lower position, can not contact to earth and the device of a buffer action.Control electric aspect, can control the homophase energising simultaneously of each linear electric motors by weight sensor and " PC " program controller or hand switch or remote controller, cage 8 is promoted and counterweight iron 4 is dragged row (being what is called active each other) downwards; The big I of apparent load drags the not energising separately simultaneously of linear electric motors elementary 3 (promptly so-called list is initiatively) in cage 8 or the counterweight iron 4, reduced power output, anti-phase power supply simultaneously can make cage 8 descend, counterweight iron 4 is upwards dragged and is drawn, also can make cage 8, different power supplies when identical of linear electric motors on the counterweight iron 4 elementary 3 are with the purpose (being that what is called is carried on the back each other) that reaches decelerations, brakes.

Enforcement two, double-cage elevator

Two cages 8 are connected by steel rope 2 with two counterweight iron 4a, 4b respectively, be suspended in derrick 12 each opposite flank that the stack of derrick joint (see figure 7) forms each other laterally by head sheave 1 before.The counterweight iron 4 of present embodiment by about two counterweight iron 4a form with the 4b bolt together, the elementary 3 one-tenth symmetries of linear electric motors install in it relatively.The secondary 5 material steel plates of the linear electric motors of four sides on the derrick 12, it places between two linear electric motors elementary 3, and linear electric motors secondary 5 are vertically mounted on the respective side of derrick 12.Make the material of linear electric motors secondary 5 with steel plate, then must use linear electric motors in pairs, and two linear electric motors symmetries are installed relatively, promptly linear electric motors elementary 3 in secondary 5 both sides of linear electric motors relatively symmetry install.By 13 whiles and the channled rail 14 and secondary 5 closed contacts of linear electric motors that are installed on the derrick 12 of the track adjusting wheel on counterweight iron 4a, the 4b, keeping the linear electric motors elementary 3 and the gap delta of linear electric motors secondary 5 is 1-2mm, and makes counterweight iron 4a, 4b lifting normal simultaneously.The first line 3 of cage 8 interior lines motors is to become the relative installation of symmetry, and linear electric motors secondary 5 place therebetween, by the column closed contact on track adjusting wheel on the cage 87 and the derrick 12, keep the gap delta of linear electric motors elementary 3 and secondary 5, and make cage 8 upper and lower normal operations.R is with single cage-lifter.Equally, double-cage elevator linear electric motors are secondary also can adopt aluminium sheet or copper coin or bimetallic plates.Steel rope balancer 6 is to change the device of receiving rope or putting rope according to adjustable height, and guide frame 10 is installed on the cage 8, and track adjusting wheel 7 is equipped with in configuration on it, and safe fence 15 is to prevent that personnel from entering the safety barrier in place when elevator is worked.

Adopt linear electric motors to drag and to be provided with single-phase loss protecting function, never allow single-phase dragging.

This electromagnetic lifter can be used as building operation elevator, high-power little speed or medium velocity elevator, high-rise higher speed elevator, under-water operation elevator, every field elevators such as balcony lift and goods, the defeated elevator of passenger traffic.

Claims

1. the electromagnetic lifter of a vertical operation, it by head sheave, derrick, cage, drag and draw steel rope and constitute, it is characterized in that linear electric motors secondary [5] are fixed on the derrick [12], linear electric motors elementary [3] are installed in cage or platform [8] is located or counterweight iron [4] is located or cage or platform [8] and counterweight iron [4] are located gapped δ between linear electric motors elementary [3] and secondary [5].

2. according to the described electromagnetic lifter of claim 1, it is characterized in that secondary [5] of linear electric motors are separately fixed on every section derrick joint, on the derrick [12] that derrick joint closed assembly becomes, become continuous linear electric motors secondary.

3. according to the described electromagnetic lifter of claim 1, it is characterized in that the linear electric motors elementary [3] that cage or platform [8] or counterweight iron [4] are located to be equipped with have one or more.

4. according to the described electromagnetic lifter of claim 1, it is characterized in that the gap delta value is 0.5mm to 3.5mm.

5. according to the described electromagnetic lifter of claim 1, it is characterized in that linear electric motors secondary [5] installation site and derrick [12] side become substantially parallel placement or basic vertically placement.

6. according to the described electromagnetic lifter of claim 1, it is characterized in that linear electric motors secondary [5] material is aluminium sheet or copper coin or copper base-steel bi-metal plate or steel plate.

7. according to the described electromagnetic lifter of claim 1, it is characterized in that linear electric motors elementary [3] are installed in a side of linear electric motors secondary [5] or become relative symmetry to install in the two sides of linear electric motors secondary [5].