A reliable device for preventing the spindle from falling off

Abstract

The present invention discloses a reliable device for preventing the spindle from falling off, which includes a spindle, and also includes a clamping plate and a support seat; the clamping plate includes a plug-in plate and a mounting plate formed by bending and perpendicular to the plug-in plate, and fixing holes are formed in the mounting plate, and the clamping plate is fixedly connected to the support seat through the fixing holes; a clamping groove for cooperating with the plug-in plate is arranged on the inner side wall of the support seat; a spindle mounting hole is formed in the support seat, and shaft grooves for cooperating with the clamping plate are formed at both ends of the spindle. In the present invention, the plug-in plate of the clamping plate is inserted into the clamping groove of the support seat, and the bottom is located in the shaft groove of the spindle, and the support seat is fixedly connected to the fixing plate. When the spindle moves horizontally, the shaft groove and the clamping plate cooperate to prevent the spindle from continuing to move horizontally, prevent the spindle from falling off, and thus avoid safety accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of escalator equipment, and in particular, to a reliable device for preventing the main shaft from falling off. Background Art

[0002] Generally, the main shaft of an escalator will not fall off from the fixed plates on both sides of the truss. However, factors such as welding deformation of the truss, deformation after overall hot-dip galvanizing at high temperature, and unevenness of the fixed plates on both sides can cause the central plane of the main shaft not to coincide with the central plane of the truss, resulting in the main shaft shifting to one side, increasing the overlapping amount in the fixed plate on one side and decreasing the overlapping amount in the fixed plate on the other side.

[0003] At this time, during normal operation of the escalator, the main shaft generally will not fall off. However, in case of a safety failure, the working brake and the additional brake will be urgently stopped. At this time, the impact force suddenly increases, and the truss fixed plate will generate a certain amount of elastic deformation due to the impact. If this deformation amount exceeds the above-mentioned overlapping amount, the main shaft will fall off, and the escalator will no longer be usable, and even safety accidents may occur. Summary of the Invention

[0004] An embodiment of the present invention provides a reliable device for preventing the main shaft from falling off to solve the problems raised in the above background art.

[0005] A reliable device for preventing the main shaft from falling off includes a main shaft, and is characterized in that it further includes a clamping plate and a support seat; the clamping plate includes a plug-in plate and a mounting plate formed by bending and perpendicular to the plug-in plate, and fixing holes are provided on the mounting plate, and the clamping plate is fixedly connected to the support seat through the fixing holes; a slot matching the plug-in plate is provided on the inner side wall of the support seat; a main shaft mounting hole is provided on the support seat, and shaft grooves matching the clamping plate are provided at both ends of the main shaft.

[0006] Further, the plug-in plate is located below the mounting plate, and the two fixing holes are respectively provided on both sides of the mounting plate.

[0007] Further, the main shaft and the main shaft mounting hole are in clearance fit.

[0008] Further, it further includes a truss fixing plate, and the support seat is detachably and fixedly connected to the truss fixing plate.

[0009] The beneficial effects of the present invention are as follows:

[0010] In the present invention, the plug-in plate of the clamping plate is inserted into the slot of the support seat, and the bottom is located in the shaft groove of the main shaft, and the support seat is fixedly connected to the fixing plate. When the main shaft moves horizontally, the shaft groove and the clamping plate cooperate to prevent the main shaft from continuing to move horizontally, prevent the main shaft from falling off, and thus avoid safety accidents. Description of the Drawings

[0011] Figure 1It is a schematic structural diagram of the present invention;

[0012] Figure 2 It is a schematic structural diagram of the main shaft, support seat and clamping plate in the present invention;

[0013] Figure 3 It is Figure 2 an enlarged schematic structural diagram of part A in

[0014] Figure 4 It is Figure 2 a partial sectional view of

[0015] Figure 5 It is a schematic structural diagram of the clamping plate in the present invention.

[0016] In the figure: 1 - truss; 2 - truss fixing plate; 3 - support seat; 4 - clamping plate; 401 - plug-in plate; 402 - mounting plate; 403 - fixing hole; 5 - main shaft; 6 - shaft groove; 7 - clamping groove. Detailed implementation manners

[0017] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0018] Figures 1-5 As shown, a reliable device for preventing the main shaft from falling off includes a main shaft 5 and a truss fixing plate 2, and further includes a clamping plate 4 and a support seat 3; the clamping plate 4 includes a plug-in plate 401 and a mounting plate 402 formed by bending and perpendicular to the plug-in plate 401, and fixing holes 403 are formed in the mounting plate 402, and the clamping plate 4 is fixedly connected to the support seat 3 through the fixing holes 403; a clamping groove 7 for cooperating with the plug-in plate 401 is provided on the inner side wall of the support seat 3; a main shaft mounting hole is formed in the support seat 3, and shaft grooves 6 for cooperating with the clamping plate are formed at both ends of the main shaft 5. The support seat 3 is detachably and fixedly connected to the truss fixing plate 2. The plug-in plate 401 is located below the mounting plate 402, and the two fixing holes 403 are respectively formed on both sides of the mounting plate 402. The main shaft 5 and the main shaft mounting hole are in clearance fit.

[0019] The working process of the present invention is as follows:

[0020] During work, the plug-in plate of the clamping plate is inserted into the clamping groove of the support seat, and the bottom is located in the shaft groove of the main shaft, and the support seat is fixedly connected to the fixing plate. When the main shaft moves horizontally, the edge of the shaft groove blocks the clamping plate, preventing the main shaft from continuing to move horizontally and preventing the main shaft from falling off, thereby avoiding safety accidents.

[0021] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A reliable spindle shedding prevention device, characterized in that It includes a main shaft, and is characterized in that it further includes a clamping plate and a support seat; the clamping plate includes a plug-in plate and a mounting plate formed by bending and perpendicular to the plug-in plate, and fixing holes are provided on the mounting plate, and the clamping plate is fixedly connected to the support seat through the fixing holes; a card slot for cooperating with the plug-in plate is provided on the inner side wall of the support seat; a main shaft mounting hole is provided on the support seat, and shaft slots for cooperating with the clamping plate are provided at both ends of the main shaft; the main shaft and the main shaft mounting hole are in clearance fit; the support seat is detachably and fixedly connected to the truss fixing plate.

2. The reliable spindle dropout prevention device according to claim 1, wherein The plug-in plate is located below the mounting plate, and there are two fixing holes, which are respectively provided on both sides of the mounting plate.

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