Cantilever type straightener roll-changing lifting appliance
Technical Field
The utility model relates to the technical field of section steel straightening devices, in particular to a roll changing lifting appliance of a cantilever type straightening machine.
Background
When the cantilever type section steel straightener is used for replacing the working rolls, part of the structures on the working rolls are basically removed firstly, then the travelling crane is used for slowly moving the working rolls out of the working positions, and the sequence is reverse when the working rolls are installed.
The prior cantilever type straightener roll changing lifting appliance, such as the utility model patent with the patent application number of CN201621316306.9 and the name of the cantilever type straightener roll changing lifting appliance, provides the cantilever type straightener roll changing lifting appliance. The lifting device comprises a frame, wherein a plurality of lifting hook lifting holes for keeping the frame balanced when lifting loads are different are formed in the frame, and a fixing device for fixedly connecting one end of a working roller is further arranged on the frame. The fixing device is provided with a first inlet for the end part of the working roll to extend in, and a second inlet for the threaded column of the end part of the working roll to extend in is arranged in the first inlet. And the frame is also provided with a counterweight. The counterweight and the fixing device are respectively arranged at two sides of the lifting holes of the lifting hooks. The utility model aims to provide a cantilever type straightener roll changing lifting appliance, which can reduce labor intensity of workers, reduce working roll changing time and avoid collision to working rolls when in use.
When the device is used, the frame is lifted through the lifting hook at the lifting holes at different positions, so that the straightening roller of the straightener is convenient to replace, however, when the lifting hole is replaced, the lifting hook needs to be taken out from the lifting hole, and the lifting hook is moved to a new lifting hole for insertion and installation, so that the fatigue of people is easily caused due to the heavy weight of the lifting hook in the process, the working efficiency is influenced, and a certain defect exists.
Accordingly, a roll changing hanger of a cantilever type straightener is provided to solve the above-mentioned problems.
Disclosure of utility model
The utility model aims to solve the problems in the background art and provides a roll changing lifting appliance of a cantilever type straightener.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a cantilever type straightener roll-changing hoist, includes the frame, still includes:
the mounting frame is fixedly connected to the frame;
The sliding groove is arranged in the mounting frame;
The sliding rod is connected in the sliding groove in a sliding way;
Six groups of welding blocks are fixedly connected to the mounting frame, the six groups of welding blocks are two by two and are arranged on two sides of the sliding groove in a pair, clamping grooves are formed in the welding blocks and communicated with the sliding groove, the sliding rod can enter the clamping grooves, and the three pairs of welding blocks are used for keeping the frame balanced when lifting loads are different.
In order to facilitate the installation of the straightening roller, preferably, a fixing device is fixedly connected to the bottom of the frame, and the fixing device is used for installing the straightening roller.
In order to facilitate the insertion, the fixing device is preferably provided with a clamping interface for the installation of the straightening roller.
For ease of use, the frame base is preferably provided with a counterweight at an end remote from the fixing means.
In order to facilitate the installation of the balancing weight, preferably, the bottom of the frame is fixedly connected with a balancing weight frame at one end far away from the fixing device, and the balancing weight is installed in the balancing weight frame.
Compared with the prior art, the utility model provides the cantilever type straightener roll changing lifting appliance, which has the following beneficial effects:
According to the utility model, through the lifting position with the adjustable position, the lifting hook is not required to be taken out from the lifting hole during lifting, and the lifting hook is only required to be hung on the sliding rod and the position of the sliding rod is moved, so that the lifting position can be adjusted.
Drawings
FIG. 1 is a schematic diagram of a roll changing hanger of a cantilever straightener;
FIG. 2 is a schematic view of the structure of the inside of a mounting frame in a roll changing hanger of a cantilever straightener;
Fig. 3 is a schematic top view of a mounting frame in a roll changing hanger of a cantilever straightener.
In the figure, 1, a frame, 101, a fixing device, 102, a clamping interface, 103, a counterweight frame, 104, a counterweight, 2, a mounting rack, 201, a sliding groove, 3, a welding block, 301, a clamping groove and 4, and a sliding rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples:
Referring to fig. 1-3, a roll changing hanger of a cantilever type straightener comprises a frame 1, a mounting frame 2 fixedly connected to the frame 1, a sliding groove 201 arranged in the mounting frame 2, a sliding rod 4 slidably connected to the sliding groove 201, six groups of welding blocks 3 fixedly connected to the mounting frame 2, two pairs of six groups of welding blocks 3, three pairs of split sliding grooves 201, clamping grooves 301 arranged in the welding blocks 3, the clamping grooves 301 communicated with the sliding groove 201, the sliding rod 4 capable of entering the clamping grooves 301, three pairs of welding blocks 3 used for keeping the frame 1 balanced when lifting loads are different, a fixing device 101 fixedly connected to the bottom of the frame 1, a fixing device 101 used for installing straightening rolls, a clamping interface 102 arranged on the fixing device 101, a balancing weight 104 arranged on one end of the bottom of the frame 1 far from the fixing device 101, a balancing weight 103 fixedly connected to one end of the bottom of the frame 1 far from the fixing device 101, and a balancing weight 103 arranged in the balancing weight 103.
The positions of the three pairs of welding blocks 3 in the device are consistent with the positions of lifting holes in the prior art, and the three pairs of welding blocks 3 are respectively used for keeping the balance of the frame 1 when the lifting loads are different, and the three pairs of welding blocks 3 are respectively a first lifting position, a second lifting position and a third lifting position.
Since two sets of straightening rollers, namely an upper straightening roller and a lower straightening roller, are required to be installed during use, the third lifting position is the balance position of the frame 1 when the fixing device 101 is in no-load state, the second lifting position is the balance position of the frame 1 when the fixing device 101 is installed with the upper straightening roller, and the first lifting position is the balance position of the frame 1 when the fixing device 101 is used for fixing the lower straightening roller.
When the straightening machine is used, the fixing device 102 is welded on the frame 1, when the straightening roller needs to be replaced, the straightening roller to be replaced is loosened, the straightening roller can be hung on the sliding rod 4 through the hanging hook, the frame 1 is lifted up and moved to the position of the upper straightening roller to be replaced through the sliding rod 4 to be at the third lifting position, the frame 1 is in an inclined state under the influence of weight, the upper straightening roller is manually assisted at the moment, the upper straightening roller is fixed through the clamping interface 102, a specific fixing mode can be achieved through bolts, chains and the like, after the fixing is completed, the straightening machine can be moved to the ground through the hanging hook, the straightening roller is taken out of the straightening machine, a new straightening roller is replaced, and the hanging hook is moved to the straightening machine for installation.
When the lower straightening roller is specifically replaced, the lower straightening roller is taken out of the straightening machine, moved to the ground and then is installed with a new lower straightening roller, and the lower straightening roller is installed again, wherein the lower straightening roller is identical to the step.
After the replacement is completed, the device can be moved to the placement position, at the moment, the lifting hook and the sliding rod 4 are required to be moved to the second lifting position for transfer, and after the placement is completed, the lifting hook can be taken down.
According to the utility model, through the lifting position with the adjustable position, the lifting hook is not required to be taken out from the lifting hole during lifting, and the lifting hook is only required to be hung on the sliding rod 4 and the position of the sliding rod 4 is moved, so that the adjustment of the lifting position can be completed.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.