CN2200039Y

CN2200039Y - Electric lifting door for vertically-sliding wing

Info

Publication number: CN2200039Y
Application number: CN93242739U
Authority: CN
Inventors: 蓝士中; 李晔; 张秋元; 孙世和
Original assignee: No9 Design & Research Inst Ministry Of Machine-Building Industry; No 9 Design & Research Inst Mi
Current assignee: No9 Design & Research Inst Ministry Of Machine-Building Industry; No 9 Design & Research Inst Mi
Priority date: 1993-10-23
Filing date: 1993-10-23
Publication date: 1995-06-07
Anticipated expiration: 2003-10-23

Abstract

The utility model discloses an electric lifting door for industrial buildings. The electric lifting door is driven by chain pulleys and chains. A door frame is fixed with a motor, the ends of two output shafts are connected with worm and gear speed reducers on both sides of the motor, the chain pulley fixed on the motor is engaged with the lifting chain on the bottom of a door leaf, and the chain can be driven to lift the door to the required position. Both sides of the door leaf are respectively provided with a catcher which can ensure that the door leaf is prevented from falling off when the accidental breaking of the drag chain. The catcher is composed of ratchets arranged on the door frame, ratchet pawls arranged on the door leaf, etc. The electric lifting door is suitable for large workshops and storehouses, particularly the industrial buildings of the cold areas in the north.

Description

Electric lifting door for vertically-sliding wing

The electronic lever gear door of a kind of industrial construction.

The gate, workshop of modernization machine works gradually by mechanical sliding door, replaces manual control switch's the gate of splitting.This sliding door not only alleviated operator's labour intensity according to than conventional gate, and main is to have adapted to the requirement that the modern factories vehicle passes in and out the workshop again and again, but this mechanical sliding door still exists and takies shortcomings such as the ground upper space is big.

The electric hoist door is intended to overcome the shortcoming of clamshell doors and sliding door existence, the opening and closing that make door leaf are by original fan-shaped rotation and move horizontally and become elevating movement up and down, not only can realize vertical-lift but also the door leaf that can roll over can be deposited along the track with angle of slope after unlatching, that is the gate of this form of structure is in the space of only occupying after the unlatching more than the lintel, and do not occupy ground location.

The electric hoist door is realized by following proposal: the driving pattern of sprocket wheel chain has been adopted in the lifting at gate, on the door skeleton, fix a motor, its two output axle head is connected with the worm-gear speed reducer of both sides by shaft coupling, be used for the sprocket wheel that chain drives and be equipped with on the worm-gear speed reducer output shaft, this sprocket wheel fixedly connected lifting chain bottom door leaf is meshed.The motor rotation drives the sprocket rotation on worm-gear speed reducer and the output shaft, thereby chain drive-belt rises to desired position with the gate.Because chain drive-belt and the other end are fixed a counterweight, make the gate lifting process and stop all to be in the state of comparison balance.The door leaf at this gate is that a piece is connected through the hinge, and promptly can roll over, and therefore this door can vertical-lift: door leaf rises to along the vertical track on the skeleton is enough to degree that door opening is all opened, and deposits on vertical track top; The door leaf on door opening top is deposited track and also can be designed to the door opening plane or less than 90 ° of angles (for example 45 °) or angle at an angle of 90 and be provided with, but like this door leaf also can be except that vertical-lift on door opening top along certain angle of slope or horizontal direction promote, and deposit in the track of the such one-tenth angle of slope or the horizontal angle of cut of one-tenth.

Promote the back along becoming certain angle of slope (less than the acute angle at 90 ° of angles) with door opening or deposit at an angle of 90 for adapting to door leaf, door leaf is made of several splits, constitutes between the door-plate of each split to adopt hinge to connect.

This door also is provided with hand hoisting except that mechanical lifting, promptly at one end the axle head that stretches out of reductor worm screw is installed rotating ring sprocket wheel on the other hand, this loop chain wheel with pull chain and be meshed, when needs are manual, spurring manual chain rotates worm-gear speed reducer, drive the sprocket rotation on the worm-wheel shaft, the gate is promoted or closes by conduction chain.

Because the electric hoist door is the top that rests on door opening after opening, opening or close in the closed procedure is the tip position that is in vehicle or personnel, therefore the security reliability of this class door is vital, the utility model is except having selected the worm and gear type of belt drive with auto-lock function for use on the reducer kind of transmission system, guarantee not the imbalance of reason counterweight and make outside door leaf falls naturally, also adopted other safety measure, respectively be provided with one owing to the unexpected fracture of conduction chain guarantees the unlikely catcher that falls of door leaf as the both sides at door leaf, this catcher is by the ratchet bar and the ratchet that is installed on the door leaf that are installed on the skeleton, bolster, spring part constitutes.The ratchet of conduction chain and catcher fixes, under the normal operation situation, conduction chain promotes door leaf or falls, this state is down because conduction chain has been strained the ratchet that is fixed in the catcher on the door leaf, ratchet has compressed spring, cause the ratchet bar on ratchet and door leaf and the door skeleton to be in discontiguous state, therefore can successfully carry out elevating movement, but when the chain accident is disconnected (one or both sides take place simultaneously), ratchet is done open rotatablely moving around bolster under the thrust of spring, and ratchet end point type tooth just is stuck on the ratchet bar that is fixed in a skeleton, and door leaf is rested on certain spatial altitude.Requirement from human engineering, consider the height of vehicle loading and pedestrian's height, catcher is installed in the suitable height of door leaf and door skeleton, when the unexpected fracture of chain has an accident, unlikely vehicle and the pedestrian of running over and injure that fall because of door leaf is to give full play to its safety effect.

In order to keep the electric hoist door to have good insulation and seal, its door leaf adopts the structural form of the middle fill insulant material of double layer of metal plate (as polyurethane foam plastics), with the periphery that is connected of door skeleton seal construction is set around door leaf.

This kind door is changed the motion mode of existing clamshell doors and sliding door, turns to and takes up room from taking the ground area, and floor space is little, and compact conformation; Transmission device adopts worm-gear speed reducer, has auto-lock function, can guarantee its safe operation; Adopt hinge to connect between the several piece door-plate of composition door leaf and can roll over mode, be convenient to promote depositing of back variety of way; Add seal construction all around, have good heat insulating ability and dust tightness.This kind door is applicable to machine works' large-sized workshop and large-scale storehouse, and particularly northern cold zone needs the building of heating.

Below each width of cloth accompanying drawing embodiment of essential structure of the present utility model and up-down mode is provided:

Accompanying drawing 1 electric hoist door essential structure view

Accompanying drawing 2 electric hoist door catcher device views

Accompanying drawing 3 electric hoist door hoisting way views

As shown in Figure 1, this electric hoist door by be used for door be fixed on the building the door skeleton (1), one transmission device is installed on the crossbeam on it, this device is by motor (14), power transmission shaft (13), worm-gear speed reducer (12) is formed, each fixes a sprocket wheel (11) that is used for mechanical elevating on the speed reducer output shaft, and each is meshed with conduction chain (9), and an end of conduction chain is connected with catcher ratchet (17) on being fixed in door leaf (7), the other end then connects a counterweight (5) that is used for balance door leaf weight, two reductors wherein the worm screw of a side prolong on the axle (15), be equipped with and carry out manual loop chain wheel (4), and be meshed with manual chain (6), so that, promote or close the gate at the drop-down conduction chain of starting of power-off condition.

As shown in Figure 2, in the both sides at gate one catcher (10) is housed respectively, it is made of ratchet bar (21) that is installed on certain-length on the two side door skeletons and the ratchet (17), flat spring (20), the bolster (18) that are installed on door leaf two side bottoms, the top of ratchet is connected with conduction chain, sharp type tooth is processed in the end of ratchet, when the unexpected fracture of chain drive-belt, spring promotes ratchet and rotates, and its sharp type tooth can be stuck on the ratchet bar (21) that is loaded on the skeleton.

This door leaf adopts hinged door-plate to form by polylith, when the guide rail on being fixed in a skeleton (2) can be rolled between each piece door-plate when doing lifter motion.

As shown in Figure 3, provide the embodiment of three kinds of liftings of this electric hoist door, be depicted as a kind of vertical-lift mode, the position when the gate stops and deposit in door opening along skeleton door leaf after track is opened above as Fig. 3-a.Shown in Fig. 3-b, door leaf on the top of door opening, is deposited guide rail and the ground angle at 45 of door leaf after the guide rail lifting of door skeleton, and door leaf stays in after lifting in corner and the straightway.Shown in Fig. 3-c, the door leaf guide rail becomes 90 ° of angles of cut with the door opening plane, and promptly door leaf stays on corner and the horizontal segment after promoting.The visual architectural design of above-mentioned various hoisting way and specifically need selecting.

Claims

1, a kind of electric hoist door, the transmission device of being made up of door skeleton and guide rail, door leaf, motor and reductor is constituted, it is characterized in that: respectively be equipped with one on the output shaft of worm-gear speed reducer two ends and be used for the sprocket wheel (11) that chain drives, and be meshed with the fixedly connected conduction chain in door leaf bottom, and the other end of chain is fixed a counterweight (5) that is used for balance gate weight.

2, according to the described electric hoist door of claim 1, it is characterized in that: the door leaf both sides respectively are equipped with one can prevent that it is made of the ratchet (17), spring (20), the bolster (18) that are installed on the door leaf bottom and the ratchet bar (21) that is installed on the skeleton because of the unexpected catcher (10) that ruptures and cause the gate to fall of conduction chain.

3, according to the described electric hoist door of claim 2, it is characterized in that: the ratchet of catcher (17) top is connected with conduction chain (9), and the ratchet end has the crown that can snap in ratchet bar (21).

4, electric hoist door according to claim 1 is characterized in that: be equipped with on the worm shaft of reductor and be used for manual loop chain wheel (4), and and manually loop chain bar (6) be meshed.