CN210507168U

CN210507168U - Broken shaft protection device for front support leg of upstroke movable mould frame

Info

Publication number: CN210507168U
Application number: CN201921258287.2U
Authority: CN
Inventors: 方林; 梁旭; 夏海亮; 杨成明
Original assignee: Shandong Hengkun Machinery Co ltd
Current assignee: Shandong Hengkun Machinery Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-05-12
Anticipated expiration: 2029-08-06
Also published as: WO2021022611A1

Abstract

The utility model provides a landing leg broken shaft protection device before upstroke movable mould frame, when installing girder and preceding landing leg, the relative girder of stores pylon moves up, the head end of limiting plate can be pushed down to the guide rail this moment, limiting plate antiport, its tail end is kept away from the locking axle, after rotating certain angle, the limiting plate rotates to break away from with the guide rail, later under the action of gravity, the limiting plate gyration is to the horizontality, its head end is in the guide rail top this moment, its tail end contacts with locking spindle nose end, when running gear's round pin axle fracture, preceding landing leg moves down, after moving certain distance, the head end of limiting plate contacts with the guide rail, because its tail end is withstood by the locking axle after the limiting plate atress, it can't rotate again, thereby. The device has the function of shaft breakage protection, does not need to change the mounting sequence of the front supporting legs and does not need any special tool. And then, the broken pin shaft can be replaced by the aid of the chain block, so that time and a crane are saved, smooth construction is guaranteed, and loss is reduced.

Description

Broken shaft protection device for front support leg of upstroke movable mould frame

Technical Field

The utility model relates to a bridge machinery technical field, concretely relates to up-going moving die carrier front leg broken shaft protection device.

Background

Chinese patent CN107090779A is a utility model named as a traveling device for front support legs of movable mold frame, applied by my company in 2017, 6 and 14 months, and the traveling device enables the front support legs to move longitudinally and prevents the front support legs from being unbalanced in longitudinal movement. However, the front supporting legs of the walking device are hung and installed through the hanging rack, the change gear on the hanging rack walks along the nose bridge, the whole walking mechanism is a walking device and a hoisting device, the change gear is connected with the speed reducer and the motor through the coupler, if a certain pin shaft is broken in the walking process, the front supporting legs fall off from the die carrier, if the front supporting legs are hardened pavement under a bridge, the front supporting legs deform and are even scrapped, and the safety of pedestrians and vehicles under the bridge can be threatened; if the equipment is in a river gulf, the equipment is directly submerged in water, serious loss is caused, the front supporting leg is complex in structure and difficult to process, and if the situation occurs, the construction period is also seriously influenced.

Disclosure of Invention

The utility model discloses an overcome not enough of above technique, provide an up-running moving die carrier front leg broken shaft protection device that effectively avoids the front leg to drop from the die carrier.

The utility model overcomes the technical scheme that its technical problem adopted is:

the utility model provides an upstroke moving die carrier front leg broken shaft protection device, includes two girders of two stores pylons, and the stores pylon is located the medial extremity of the girder of homonymy, and the stores pylon lower extreme is connected with the front leg through II articulated joints of round pin axle, and girder medial extremity is provided with the guide rail along its length direction, rotates on the stores pylon and installs the change gear, and the change gear roll is installed on the guide rail that the homonymy corresponds, still includes:

the ear plate is arranged on the hanging frame along the vertical direction;

the limiting plate is rotatably arranged at the upper end of the lug plate through a pin shaft I; and

the stop shaft is positioned at the rear side of the ear plate and vertically arranged on the hanging rack, the limiting plate rotates to be in a horizontal state in a natural state, the front end of the limiting plate is positioned right above the guide rail corresponding to the same side, and the lower end face of the rear end of the limiting plate is in contact with the upper end face of the stop shaft.

In order to realize good balance weight, a raised head is arranged below the tail end of the limiting plate.

In order to realize buffering, a rubber pad is arranged at the top of the stop shaft.

The utility model has the advantages that: when the main beam and the front supporting legs are installed, the hanging rack moves upwards relative to the main beam, the guide rail can press the head end of the limiting plate downwards at the moment, the limiting plate rotates reversely, the tail end of the limiting plate is far away from the stopping shaft, after the limiting plate rotates for a certain angle, the limiting plate rotates to be separated from the guide rail, then under the action of gravity, the limiting plate rotates to be in a horizontal state, the head end of the limiting plate is located above the guide rail, the tail end of the limiting plate is in end contact with the stopping shaft head, when a pin shaft of the walking mechanism is broken, the front supporting legs move downwards, after the limiting plate moves for a certain distance, the head end of the limiting plate is in contact with the guide rail. The device has the function of shaft breakage protection, does not need to change the mounting sequence of the front supporting legs and does not need any special tool. And then, the broken pin shaft can be replaced by the aid of the chain block, so that time and a crane are saved, smooth construction is guaranteed, and loss is reduced.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the front leg of the present invention mounted on the main beam;

FIG. 4 is a schematic view of the position-limiting plate hooked on the guide rail of the main beam;

in the figure, 1, a main beam 2, a hanging frame 3, a front supporting leg 4, a limiting plate 5, a guide rail 6, an ear plate 7, a pin shaft I8, a stop shaft 9, a rubber pad 10, a raised head 11 and a pin shaft II are arranged.

Detailed Description

The present invention will be further described with reference to fig. 1 to 4.

The utility model provides an upstroke moving die carrier front leg broken shaft protection device, includes two girders 1 of two stores pylons 2, and stores pylon 2 is located the medial extremity of girder 1 of homonymy, and 2 lower extremes of stores pylon are connected with preceding landing leg 3 through II 11 articulated joints of round pin axle, and 1 medial extremity of girder is provided with guide rail 5 along its length direction, rotates on the stores pylon 2 and installs the change gear, and the change gear roll mounting still includes on the guide rail 5 that the homonymy corresponds:

the ear plate 6 is arranged on the hanging frame 2 along the vertical direction; the limiting plate 4 is rotatably arranged at the upper end of the lug plate 6 through a pin shaft I7; and the stop shaft 8 is positioned at the rear side of the lug plate 6, the stop shaft 8 is vertically arranged on the hanging rack 2, the limiting plate 4 rotates to a horizontal state in a natural state, the front end of the limiting plate 4 is positioned right above the guide rail 5 corresponding to the same side, and the lower end face of the rear end of the limiting plate 4 is in contact with the upper end face of the stop shaft 8. As shown in fig. 3, when the main beam 1 and the front supporting legs 3 are installed, the hanging rack 2 moves upwards relative to the main beam 1, the head end of the limiting plate 4 can be pressed downwards by the guide rail 5 at the moment, the limiting plate 4 rotates reversely, the tail end of the limiting plate is far away from the stopping shaft 8, after the limiting plate 4 rotates by a certain angle, the limiting plate 4 is separated from the guide rail 5, then under the action of gravity, the limiting plate 4 rotates to be in a horizontal state, the head end of the limiting plate 4 is located above the guide rail 5 at the moment, the tail end of the limiting plate is contacted with the head end of the stopping shaft 8, as shown in fig. 4, when the pin shaft of the walking mechanism is broken, the front supporting legs 3 move downwards, after the limiting plate 4 moves by a certain distance, the head end of the limiting plate 4 is contacted with. The device has the function of shaft breakage protection, does not need to change the mounting sequence of the front supporting legs and does not need any special tool. And then, the broken pin shaft can be replaced by the aid of the chain block, so that time and a crane are saved, smooth construction is guaranteed, and loss is reduced.

Further, a raised nose 10 is arranged below the tail end of the limit plate 4. By arranging the raised head 10, the balance weight at the tail end of the limiting plate 4 is increased, so that the limiting plate 4 can overcome the rotation damping of the pin shaft I7 in a natural state, the limiting plate 4 rotates until the rear end of the limiting plate is in contact with the stop shaft 8, and the limiting plate rotates to be in a horizontal state.

Preferably, a rubber pad 9 is mounted on the top of the stop shaft 8. When the limiting plate 4 rotates to be in a horizontal state under the action of gravity, the rear end of the limiting plate is in contact with the rubber pad 9 when being in contact with the top of the stop shaft 8, so that the rubber pad 9 can absorb impact force, the generation of collision sound is avoided, and the service life is effectively prolonged.

Claims

1. The utility model provides an up-going movable mould frame front leg broken shaft protection device, including two girders (1) of two stores pylon (2), stores pylon (2) are located the medial extremity of girder (1) of homonymy, stores pylon (2) lower extreme is connected with preceding landing leg (3) through round pin axle II (11) are articulated, girder (1) medial extremity is provided with guide rail (5) along its length direction, rotate on stores pylon (2) and install the change gear, the change gear roll mounting is on guide rail (5) that the homonymy corresponds, a serial communication port, still include:

the ear plate (6) is arranged on the hanging rack (2) along the vertical direction;

the limiting plate (4) is rotatably arranged at the upper end of the ear plate (6) through a pin shaft I (7); and

the stop shaft (8) is positioned at the rear side of the ear plate (6), the stop shaft (8) is vertically installed on the hanging rack (2), the limiting plate (4) rotates to a horizontal state in a natural state, the front end of the limiting plate (4) is positioned right above the guide rail (5) corresponding to the same side, and the lower end face of the rear end of the limiting plate (4) is in contact with the upper end face of the stop shaft (8).

2. The upstroke moving formwork front leg broken shaft protection device according to claim 1, characterized in that: and a raised head (10) is arranged below the tail end of the limiting plate (4).

3. The upstroke moving formwork front leg broken shaft protection device according to claim 1, characterized in that: and a rubber pad (9) is arranged at the top of the stop shaft (8).