Mounting method and positioning tool for escalator guide rail system
Technical Field
The invention relates to an installation method and a positioning tool for an escalator guide rail system. More particularly, the invention relates to an escalator installation method and a positioning tool used by the escalator installation method.
Background
The step rail, drive system and truss are important parts of an escalator. In the running process of the escalator, the steps run in the truss along the guide rail under the driving of the driving system, and the stability and the safety are ensured and the deviation of the steps is prevented in the running process.
Therefore, the running of the steps puts high demands on the mounting accuracy of the step guide rails. During escalator installation, an important challenge is how to accurately install the step rails and drive system in the truss. The truss itself is a large-sized welded steel structure, which cannot improve sufficient installation accuracy for the step rail and the drive system technically.
In the installation process of the existing escalator, a step guide rail and a driving system are installed on a truss one by adopting a manual method. Such assembly is very time consuming on the one hand and on the other hand it is difficult to accurately install the step rails and the drive system in the truss, resulting in inefficient assembly of the escalator, less accurate installation and higher costs. Therefore, how to solve the above problems is currently an important issue.
Disclosure of Invention
In order to solve the above known problems, the present invention provides an installation method of an escalator guide rail system including a step guide, a drive system, and a truss, the installation method including the steps of:
positioning the step rail and the drive system outside the truss and positioning and mounting the step rail and the drive system on the positioning tool by using a positioning tool to form a rail-drive system mounting assembly, wherein the positioning tool is detachably connected with the step rail and the drive system,
transporting and installing the guide-drive system installation assembly to a predetermined location of the truss, and
removing the positioning tooling from the rail-drive system mounting assembly mounted to the truss.
According to another embodiment of the invention, the positioning tool comprises a positioning side plate and a lifting appliance detachably connected with the positioning side plate,
the step of forming a rail-drive system mounting assembly comprises:
providing a pre-assembly station that detachably secures the positioning side plates and the drive system,
mounting the step guide rail to the positioning side plate so that the step guide rail is positioned on the outer side surface of the positioning side plate,
providing a lifting device connected to the spreader and lowering the spreader such that the spreader detachably connects the positioning side plates and the drive system to form the rail-drive system mounting assembly.
According to another embodiment of the present invention, the step of transporting and installing the guide rail-drive system installation assembly to a predetermined position within the truss includes:
the lifting device lifts the rail-drive system mounting assembly off the pre-assembly table,
the lifting device places the guide-drive system mounting assembly in a predetermined position within the truss, and
the step guide rail, the driving system and the truss are fixed.
According to another embodiment of the invention the rail-drive system mounting assembly is placed in a predetermined position within the truss by positionally supporting the spreader on support posts disposed opposite the truss from fiducials on the spreader.
According to another embodiment of the invention, the step rail, the drive system and the truss are fixed from the outside of the truss.
According to another embodiment of the invention, the step of removing the positioning tool from the rail-drive system mounting assembly comprises:
separating the positioning tool from the step guide rail and the driving system, and
and enabling the positioning tool to leave the truss through the lifting device.
According to another embodiment of the invention, the positioning side plate is a pair of positioning side plates arranged oppositely, wherein the pair of positioning side plates move in a direction approaching each other with respect to the spreader to disengage from the step rail.
By providing the technical scheme, the mounting method of the escalator guide rail system has the following technical effects:
1. the positioning efficiency is high, and the situation of inaccurate positioning can be obviously reduced. The mounting method of the present invention allows for quick and easy positioning of the step guide rails and drive system of the escalator. Compared with manual adjustment, half of the time is saved;
further, during the fixing of the positioning tooling of the preassembled step rail and drive system to the truss, the step rail and drive system are positioned and clamped by the positioning tooling. Thus, the precise positioning can be checked by the installer by visual inspection throughout the fixing process. Removal of the positioning tooling is only commenced after the step rail and drive system are precisely secured to the truss in the predetermined position. This can significantly reduce instances of positioning inaccuracies.
2. The cost is reduced. Since the length and width of the support of the spreader and the support of the pre-assembly table are adjustable to connect positioning side plates of different sizes and shafts of different sizes, the positioning tool can accommodate various variations. If new products are to be covered in the future, only new positioning side plates with separate positioning elements and clamps need to be produced without any changes to the spreader and pre-assembly station. This will significantly reduce costs.
Furthermore, the positioning tooling allows for accurate positioning of the guide rails and drive elements at locations where precision is required, with reduced tolerance requirements, thereby allowing for more economical assembly.
3. The time for assembling the escalator is saved. Since the step rail and the drive system can be pre-assembled first, the time for final assembly can be saved by 3-4 times compared with the conventional assembly method.
The invention also provides a positioning tool which is used for positioning the step guide rail and the driving system of the escalator guide rail system outside the truss of the escalator guide rail system and positioning and mounting the step guide rail and the driving system on the positioning tool to form a guide rail-driving system mounting assembly.
According to another embodiment of the invention, the positioning side plate comprises a positioning element for positioning the step rail.
According to another embodiment of the invention, the spreader includes a datum point for positioning the track-drive system mounting assembly at a predetermined location within a truss of the escalator track system.
According to another embodiment of the invention the spreader comprises slings for lifting and transport of the spreader.
According to another embodiment of the invention, the spreader comprises a support for detachable connection with the positioning side plate and the drive system, the support being configured to be adjustable in length and width to connect different sizes of the positioning side plate and different sizes of the drive system.
According to another embodiment of the invention, the positioning side plate is movable relative to the spreader such that when the positioning tooling is to be removed from the track-drive system mounting assembly mounted to the truss, the positioning side plate moves out of engagement with the step track.
The positioning tool according to the technical scheme can be repeatedly used, and the following technical effects are achieved:
1. the positioning of the step guide rail and the driving system is realized through the positioning tool.
2. And stabilizing the positioning and positioning of the step rail and the drive system until the step rail and the drive system are fixed to the truss. After the step rail and the driving system are positioned and fixed using the positioning tool, the positioning tool is transported by a lifting device such as a crane and put as a whole at a predetermined position within a truss of the escalator. In this process, the positioning tooling stabilizes the step rail and the drive system in their precise positions.
3. The positioning of the pre-positioned guide rail and the drive system as a whole relative to the truss is achieved by means of a reference point of the spreader.
Drawings
For a more complete understanding of the embodiments and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
figure 1 is a schematic diagram showing a positioning tool for precision pre-assembly of a step rail and drive system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram showing a locating side plate with locating elements and pneumatic clips for a step rail embodiment of the present invention.
FIG. 3 is a schematic diagram showing an upper platform pre-assembly station.
Fig. 4 is a schematic view showing a pre-assembly station mounted with a positioning side plate.
FIG. 5 is a schematic diagram showing a pre-assembly station with positioning side plates and drive system installed.
Fig. 6 is a schematic diagram showing the spreader lowered for detachable connection to the positioning side plates and drive system.
Fig. 7 is a schematic view showing the connection of the support of the spreader from the inside to the positioning side plate.
Fig. 8 is a schematic view showing that the positioning tool with the positioning side plate and the driving system installed is separated from the pre-assembly table, transported and put into the truss of the escalator.
Fig. 9 is a schematic view showing the mounting of the step rail and drive system to the truss.
Fig. 10 is a schematic view showing the positioning tool disengaged from the step track and the drive system.
Fig. 11 is a schematic view showing the positioning tool being removed from the truss.
Detailed Description
An escalator installation method and a positioning tool used in the method will be described below with reference to the accompanying drawings. The examples of the present invention are only for illustrating the present invention and are not intended to limit the scope of the present invention.
Referring to fig. 1-2, fig. 1 is a schematic diagram showing a positioning tooling for precision pre-assembly of a step rail and drive system of an embodiment of the invention, and fig. 2 is a schematic diagram showing a positioning side plate with positioning elements and pneumatic clamps for the step rail of an embodiment of the invention.
As shown in fig. 1-2, the positioning tool 1 includes a positioning side plate 2 and a lifting tool 3, and the positioning side plate 2 is a side plate of the positioning tool. As shown in fig. 2, the positioning side plate 2 includes a positioning element 5 and a pneumatic clamp 6 for positioning the step rail 4. As shown in fig. 1, the hoist 3 has a hoist ring 7 for lifting and transporting the positioning tool 1, and a reference point 9 for positioning the positioning tool 1 to a predetermined position in a truss 8 of the escalator. As shown in fig. 1-2, the spreader 3 is further provided with a support 10 for detachable connection with the positioning side plate 2 and a support 12 for detachable connection with the shaft 11 (i.e., the shaft of the drive system). The length and width of the side plate positioning supports 10 and the axle supporting supports 12 of the spreader are adjustable to connect differently sized positioning side plates 2 and differently sized axles 11.
For easier and faster pre-assembly of the step rail and the drive system, a pre-assembly table 13 is also provided. Fig. 1-7 show by way of example a pre-assembly station 13 of an upper platform (laying). As shown in fig. 3, the pre-assembly table 13 is provided with a support 14 for detachable connection with the positioning side plate 2 and a support 15 for detachable connection with the shaft 11 (i.e., the shaft of the drive system). The supports 14 for the positioning side plates and the supports 15 for the shafts of the pre-assembly station 13 are adjustable in length and width to enable the connection of positioning side plates 2 of different sizes and shafts 11 of different sizes.
The assembly and installation process of the escalator will now be described with reference to the accompanying drawings.
Referring to fig. 4-5, during installation of the escalator, the positioning side plate 2 is first positioned on the support 14 for the positioning side plate on the pre-assembly table 13 by means of the positioning pin, and the shaft 11 (i.e., the shaft of the drive system) is mounted on the support 15 for the shaft on the pre-assembly table 13. As shown in fig. 5, two positioning side plates 2 corresponding to the two side step rails 4 and the shaft 11 are detachably mounted on the pre-assembly table 13, and the step rails 4 are positioned on the outer side surfaces of the positioning side plates 2 by the positioning members 5 and the air clamps 6.
Subsequently, as shown in fig. 6, the spreader 3 is lowered by means of a lifting device such as a crane, detachably connected to the two positioning side plates 2 corresponding to the two side step rails 4 through the supports 10 of the spreader for detachable connection to the positioning side plates 2, and detachably connected to the shaft 11 through the supports 12 of the spreader detachably connected to the shaft 11.
As shown in fig. 6, the two supports 10 of the spreader 3 detachably connected to the two positioning side plates 2 are movable toward and away from each other with respect to the spreader 3 to connect the positioning side plates 2 of different sizes, and the supports 12 of the spreader detachably connected to the shaft are movable toward and away from each other with respect to the spreader 3 to connect the shafts of different sizes.
As shown in fig. 7, two supporting members 10 detachably connected to the two positioning side plates 2 are connected to the two positioning side plates 2 to which the step guide rails 4 are mounted, respectively, from the inner sides of the two positioning side plates 2.
Next, as shown in fig. 8, the positioning tool 1 with the step guide and the drive system installed is detached from the pre-assembly table 13 by means of a lifting device such as a crane. The positioning tool 1 with the step guide and the drive system installed as a whole is lifted off the pre-assembly table 13 by means of the lifting device and transported towards the truss 8 of the escalator and subsequently transported above the truss 8 of the escalator.
As shown in fig. 8, a support column 16 is provided outside the truss 8 so that the reference point 9 of the spreader 3 on which the positioning tool of the step guide rail and the drive system is mounted is positioned and supported on the support column 16, and the positioning tool on which the step guide rail and the drive system are mounted is accurately positioned at a predetermined position in the truss 8 so that the center line of the positioning tool coincides with the center line of the truss 8.
Next, as shown in fig. 9, the step rail 4 and the drive system are secured to the truss by fasteners from the outside of the truss 8.
After fixing the step rail and the drive system to the girder 8, as shown in fig. 10, the two supports 10 detachably connected to the two positioning side plates 2 are moved closer to each other, so that the positioning side plates 2 are disengaged from the step rail and the supports 12 of the spreader detachably connected to the shaft 11 are disengaged from the drive system.
After the positioning side plate 2 is disengaged from the step rail 4 and the support 12 of the spreader, which is detachably connected to the shaft, is disengaged from the drive system, the lifting device is raised, lifting the spreader 3 together with the positioning side plate 2 connected to the spreader 3 off the truss 8, as shown in fig. 11. The positioning tool is used for positioning and installing the next system after leaving the truss 8.
While the present invention has been described by way of examples of preferred embodiments, the description is not intended to limit the invention. Various modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the scope defined by the claims.