High-strength main transmission shaft dismounting device special for escalator

Abstract

The utility model provides a special high-strength main transmission shaft dismounting device for an escalator, which belongs to the technical field of escalators and comprises a base and a supporting mechanism arranged on the base, the supporting mechanism comprises a rectangular sliding opening arranged in the middle of the upper end face of the base, and a sliding cylinder is slidably connected in the rectangular sliding opening. A rotating supporting plate is rotationally connected into a rotating groove formed in the upper end of the sliding cylinder, a hydraulic jack is arranged in the middle of the bottom wall face of the rectangular sliding opening, the upper end of the telescopic end of the hydraulic jack is fixedly connected with the middle of the top wall face of the sliding cylinder, and symmetrically-distributed limiting seats are arranged at the four corners of the upper surface of the rotating supporting plate. Operating openings used for operating the hydraulic jack are formed in the rear end of the middle of the base and the lower side of the middle of the rear end of the sliding cylinder. Through cooperation of the supporting mechanism, the anti-toppling assembly, the anti-falling assembly and the limiting assembly, the disassembled main transmission shaft can be conveniently transferred to a hoisting area, and the tedious process of traditional manual carrying is greatly simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of escalators, and particularly relates to a high-strength main drive shaft disassembly device special for escalators. Background Art

[0002] An escalator is an open transportation device driven by electricity and capable of continuously transporting passengers in a constant direction. It is commonly seen in public places such as shopping malls, subway stations, airports, etc. In the structure of an escalator, the main drive shaft is usually connected to the drive motor of the escalator, and power is transmitted through a series of transmission components.

[0003] When disassembling and repairing the existing main drive shaft of an escalator, the main drive shaft is usually manually carried from the escalator to its opening hoisting location. Due to the large overall gravity of the main drive shaft, the process is cumbersome, and it is not convenient to transfer the disassembled main drive shaft. Of course, there is also a method of using a jack to assist in moving, but this single reliance has hidden dangers: once the jack fails or loses its supporting force, not only does the operation safety decrease significantly, but also greater safety risks are brought. Summary of the Utility Model

[0004] In view of this, the utility model provides a high-strength main drive shaft disassembly device special for escalators. Through a support mechanism, an anti-tipping component, an anti-falling component and a limiting component, the disassembled main drive shaft can be conveniently transferred to the hoisting area, greatly simplifying the cumbersome process of traditional manual handling, avoiding the problem of the main drive shaft falling due to the sudden loss of the jacking force of the hydraulic jack, and ensuring the stable operation and support of the main drive shaft.

[0005] To solve the above technical problems, the utility model provides a high-strength main drive shaft disassembly device special for escalators, including a base and a support mechanism arranged on the base. The support mechanism includes a rectangular sliding opening arranged in the middle of the upper end surface of the base. A sliding cylinder is slidably connected in the rectangular sliding opening, and the rectangular sliding opening provides guiding and sliding support for the sliding cylinder. A rotating support plate is rotatably connected in a rotating groove arranged at the upper end of the sliding cylinder, and the rotating groove provides rotating support for the rotating support plate. In the middle of the bottom wall surface of the rectangular sliding opening, there is a hydraulic jack. The upper end of the telescopic end of the hydraulic jack is fixedly connected to the middle of the top wall surface of the sliding cylinder. Symmetrically distributed limiting seats are arranged at the four corners of the upper surface of the rotating support plate. Operation openings for operating the hydraulic jack are respectively arranged at the middle rear end of the base and the lower side of the middle rear end of the sliding cylinder. Anti-tipping components are also arranged at the four corners of the base, and an anti-falling component is arranged at the front side of the middle of the upper end of the base. Limiting components are arranged between two longitudinally adjacent limiting seats.

[0006] The anti-tipping component includes slots symmetrically arranged horizontally on the front and rear surfaces of the base. The outer ends of the slots are rotatably connected with support legs. The slots provide rotational support for the support legs. Threaded rods are threadedly connected to the threaded holes arranged at the outer ends of the support legs. Support seats are provided at the lower ends of the threaded rods. Arc-shaped grooves corresponding to the threaded rods one by one are provided on the front and rear surfaces of the base near the inner ends of each slot. The arc-shaped grooves are used to avoid the threaded rods; the center of the circle where the arc-shaped grooves are located coincides with the axis of the support legs.

[0007] The anti-falling component includes a sliding slot opening arranged in the middle of the upper end of the base. A limiting sliding plate is slidably connected in the sliding slot opening. The sliding slot opening provides guiding sliding support for the limiting sliding plate. A ratchet plate is provided in the middle of the front surface of the sliding cylinder. The rear end of the limiting sliding plate is cooperatively arranged with the ratchet plate. The ratchet plate provides limitation for the limiting sliding plate. A spring is arranged between the step surface of the limiting sliding plate and the front wall surface of the sliding slot opening. The spring provides elastic support for the limiting sliding plate. The spring is movably sleeved outside the limiting sliding plate.

[0008] The limiting component includes threaded holes respectively arranged in the middle of the upper surface of the limiting seat. Threaded rods are threadedly connected to the threaded holes. Pressure plates are movably sleeved between two longitudinally adjacent threaded rods, which can play a role in limiting the high-strength main drive shaft dedicated to the escalator.

[0009] Rotating rollers are rotatably connected in the installation grooves horizontally and evenly arranged on the upper surface of the rotating support plate, which is convenient for moving the high-strength main drive shaft dedicated to the escalator.

[0010] Universal wheels are symmetrically distributed at the four corners of the lower surface of the base, which is convenient for moving the base and its attached mechanisms as a whole.

[0011] The beneficial effects of the above technical solutions of the present utility model are as follows:

[0012] 1. After the device is correctly positioned, by operating the hydraulic jack, the sliding cylinder and its attached mechanisms are lifted along the rectangular sliding opening until the main drive shaft contacts the rotating rollers and is located between two longitudinally adjacent limiting seats. Then, the relevant operators place the pressure plate on the main drive shaft and align the opening on it with the threaded hole in the middle of the upper surface of the limiting seat. Then, the bolts are inserted into the opening one by one and threadedly connected to the vertically adjacent threaded holes, so that the pressure plate presses the main drive shaft tightly, ensuring that the main drive shaft is firmly clamped and avoiding slipping or accidental movement during the disassembly process. Then, the relevant staff remove the main drive shaft. After all the limiting structures for fastening the main drive shaft are removed, the threaded rod is rotated counterclockwise to make the support seat leave the ground. Then, just rotate the rotating support plate or move the base, and the disassembled main drive shaft can be conveniently transferred to the hoisting area, greatly simplifying the cumbersome process of traditional manual handling. After moving to a suitable place, the bolts are removed in turn, and then the main drive shaft is flexibly moved through the evenly arranged rotating rollers, improving the versatility and convenience of disassembly.

[0013] 2. During the upward movement of the sliding cylinder, the limit sliding plate will slide relative to the ratchet plate. At this time, the limit sliding plate will continuously overcome the elastic force of the spring and retract, and under the action of the spring's resilience, it will be engaged with the ratchet plate. After the sliding cylinder moves into place, the limit sliding plate will just be engaged with the corresponding ratchet groove on the ratchet plate, thereby mechanically limiting the sliding cylinder and avoiding the problem of the main transmission shaft dropping suddenly due to the hydraulic jack losing its jacking force. After the operation is completed, pull the limit sliding plate in the reverse direction to separate it from the ratchet plate, and then the hydraulic jack can be reset. The entire device design integrates functions such as support, limit, anti-tipping, and anti-falling into one, significantly improving the safety and efficiency of the disassembly operation of the main transmission shaft of the escalator.

[0014] 3. First, move the base and its attached mechanisms as a whole to the lower part of the middle of the main transmission shaft of the escalator, then rotate the rotating support plate to be parallel to the main transmission shaft, and then move the support legs accordingly. When the support legs move to the appropriate positions, rotate the lead screws in sequence. The downward movement of the lead screws drives the support seats to move downward synchronously, so that the support seats contact the ground of the disassembly site, avoiding the problem of the main transmission shaft tipping over during support, and ensuring the stable operation and support of the main transmission shaft. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the main structure of the high-strength main transmission shaft disassembly device dedicated to the escalator of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the support mechanism of the present utility model;

[0017] Figure 3 It is an enlarged schematic diagram of part A of the present utility model;

[0018] Figure 4 It is a schematic diagram of the bottom view of the present utility model.

[0019] Description of the reference numerals: 100, base; 200, sliding cylinder; 201, rotating support plate; 202, hydraulic jack; 203, limit seat; 300, slotted opening; 301, support leg; 302, lead screw; 303, support seat; 400, sliding notch; 401, limit sliding plate; 402, ratchet plate; 403, spring; 500, bolt; 501, pressing plate; 600, rotating roller; 700, universal wheel. Detailed Embodiment

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will combine the attached drawings of the embodiments of the present utility model. Figures 1-4, the technical solutions of the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model fall within the scope of protection of the present utility model.

[0021] As Figures 1-4 shown:

[0022] This embodiment provides a high-strength main drive shaft disassembly device for escalators, including a base 100 and a support mechanism arranged on the base 100. The support mechanism includes a rectangular sliding opening arranged in the middle of the upper end surface of the base 100. A sliding cylinder 200 is slidably connected in the rectangular sliding opening. The rectangular sliding opening provides guiding sliding support for the sliding cylinder 200. A rotating support plate 201 is rotatably connected in a rotating groove arranged at the upper end of the sliding cylinder 200. The rotating groove provides rotating support for the rotating support plate 201. A hydraulic jack 202 is arranged in the middle of the bottom wall surface of the rectangular sliding opening. The upper end of the telescopic end of the hydraulic jack 202 is fixedly connected to the middle of the top wall surface of the sliding cylinder 200. Symmetrically distributed limit seats 203 are arranged at the four corners of the upper surface of the rotating support plate 201. The four corners of the upper surface of the rotating support plate 201 are welded and fixed to the limit seats 203. Operation openings for operating the hydraulic jack 202 are respectively arranged at the middle rear end of the base 100 and the lower side of the middle rear end of the sliding cylinder 200. Anti-tipping components are also arranged at the four corners of the base 100. An anti-falling component is also arranged at the front side of the middle of the upper end of the base 100. Limit components are arranged between two longitudinally adjacent limit seats 203.

[0023] As Figures 1-4 shown, the anti-tipping component includes grooved openings 300 respectively and symmetrically arranged on the front and rear surfaces of the base 100. Support legs 301 are rotatably connected to the outer ends of the grooved openings 300. Circular grooves for rotatably supporting the support legs 301 are respectively arranged at the outer ends of the grooved openings 300. Threaded rods 302 are respectively screwed into threaded holes arranged at the outer ends of the support legs 301. Support seats 303 are arranged at the lower ends of the threaded rods 302. The lower ends of the threaded rods 302 are welded and fixed to the support seats 303. Arc-shaped grooves corresponding to the threaded rods 302 one by one are respectively arranged at the front and rear surfaces of the base 100 near the inner ends of each grooved opening 300. The arc-shaped grooves are used to avoid the threaded rods 302; the center of the circle where the arc-shaped grooves are located coincides with the axis of the support legs 301.

[0024] As Figures 1-4As shown in the figure, the anti-falling component includes a sliding notch 400 provided in the middle of the upper end of the base 100. A limiting sliding plate 401 is slidably connected in the sliding notch 400. The sliding notch 400 provides guiding sliding support for the limiting sliding plate 401. A ratchet plate 402 is provided in the middle of the front surface of the sliding cylinder 200. The rear end of the limiting sliding plate 401 is cooperatively arranged with the ratchet plate 402. The ratchet plate 402 provides limitation for the limiting sliding plate 401. A spring 403 is arranged between the step surface of the limiting sliding plate 401 and the front wall surface of the sliding notch 400. The spring 403 provides elastic support for the limiting sliding plate 401. The spring 403 is movably sleeved outside the limiting sliding plate 401.

[0025] As Figures 1-4 shown in the figure, the limiting component includes screw holes respectively provided in the middle of the upper surface of the limiting seat 203. Bolts 500 are threadedly connected in the screw holes. Pressure plates 501 are movably sleeved between two longitudinally adjacent bolts 500. Openings for movably sleeving the bolts 500 are provided at the front and rear ends of the pressure plates 501, which can play a role in limiting the high-strength main drive shaft dedicated to the escalator.

[0026] As Figures 1-2 shown in the figure, rotating rollers 600 are rotatably connected in the mounting grooves uniformly arranged transversely on the upper surface of the rotating support plate 201. Rotating grooves for rotatably supporting the rotating rollers 600 are provided in the mounting grooves, which is convenient for moving the high-strength main drive shaft dedicated to the escalator.

[0027] The working principle of the high-strength main drive shaft disassembly device dedicated to escalators provided by the present utility model is as follows: First, move the base 100 and its affiliated mechanisms as a whole to the lower part of the middle of the main drive shaft of the escalator, then rotate the rotating support plate 201 to be parallel to the main drive shaft, and then move the support leg 301 accordingly. When the support leg 301 moves to a suitable position, rotate the screw rod 302 in sequence. The downward movement of the screw rod 302 drives the support seat 303 to move downward synchronously, so that the support seat 303 contacts the ground of the disassembly site, avoiding the problem of tipping when supporting the main drive shaft, ensuring the stable operation and stable support of the main drive shaft. After the device is correctly positioned, operate the hydraulic jack 202 to move the sliding cylinder 200 and its affiliated mechanisms upward along the rectangular sliding opening until the main drive shaft contacts the rotating roller 600 and is located between two longitudinally adjacent limit seats 203. Then, the relevant operator places the pressure plate 501 on the main drive shaft and aligns the opening on it with the screw hole in the middle of the upper surface of the limit seat 203. Then, insert the bolt 500 into the opening in sequence and thread it with the vertically adjacent screw hole, so as to press the pressure plate 501 against the main drive shaft, ensuring that the main drive shaft is firmly clamped and avoiding slipping or accidental movement during the disassembly process. Then, the relevant staff removes the main drive shaft. After all the limit structures fixing the main drive shaft are removed, rotate the screw rod 302 counterclockwise to lift the support seat 303 off the ground. Then, just rotate the rotating support plate 201 or move the base 100 to conveniently transfer the disassembled main drive shaft to the hoisting area, greatly simplifying the cumbersome process of traditional manual handling. After moving to a suitable place, remove the bolt 500 in sequence, and then flexibly move the main drive shaft through the uniformly arranged rotating rollers 600. During the upward movement of the sliding cylinder 200, the limit sliding plate 401 will slide relative to the ratchet plate 402. At this time, the limit sliding plate 401 will continuously overcome the elastic force of the spring 403 and retract, and under the action of the elastic force of the spring 403, it will be clamped with the ratchet plate 402. After the sliding cylinder 200 moves in place, the limit sliding plate 401 will just be clamped with the corresponding ratchet groove on the ratchet plate 402, so as to mechanically limit the sliding cylinder 200 and avoid the problem of the main drive shaft falling due to the sudden loss of the jacking force of the hydraulic jack 202. After the operation is completed, pull the limit sliding plate 401 in the reverse direction to separate it from the ratchet plate 402, and then the hydraulic jack 202 can be reset. The entire device design integrates functions such as support, limit, anti-tipping and anti-falling, significantly improving the safety and efficiency of the disassembly operation of the escalator main drive shaft.

[0028] As Figures 1-4 shown, universal wheels 700 are symmetrically arranged at the four corners of the lower surface of the base 100. The four corners of the lower surface of the base 100 are fixedly installed with the universal wheels 700 through bolts, which is convenient for moving the base 100 and its affiliated mechanisms as a whole, and conveniently adjusting the position of the base 100 and its affiliated mechanisms by using the universal wheels 700.

[0029] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A high-strength main transmission shaft disassembly device dedicated to escalators, characterized in that: It includes a base (100) and a support mechanism arranged on the base (100). The support mechanism includes a rectangular sliding opening in the middle of the upper end surface of the base (100). A sliding cylinder (200) is slidably connected in the rectangular sliding opening. A rotating support plate (201) is rotatably connected in a rotating groove provided at the upper end of the sliding cylinder (200). In the middle of the bottom wall surface of the rectangular sliding opening, there is a hydraulic jack (202). The upper end of the telescopic end of the hydraulic jack (202) is fixedly connected to the middle of the top wall surface of the sliding cylinder (200). At the four corners of the upper surface of the rotating support plate (201), there are symmetrically distributed limit seats (203). Operation openings for operating the hydraulic jack (202) are respectively provided at the middle rear end of the base (100) and the lower side of the middle of the rear end of the sliding cylinder (200). Anti-tipping components are also provided at the four corners of the base (100). An anti-falling component is further provided at the middle front side of the upper end of the base (100). Limit components are provided between two longitudinally adjacent limit seats (203).

2. The high-strength main drive shaft disassembly device for escalators according to claim 1, characterized in that: The anti-tipping component includes slots (300) respectively and symmetrically arranged on the front and rear surfaces of the base (100) horizontally. Support legs (301) are rotatably connected to the outer ends of the slots (300). Lead screws (302) are respectively threadedly connected in threaded holes provided at the outer ends of the support legs (301). Support seats (303) are provided at the lower ends of the lead screws (302). Arc-shaped grooves corresponding to the lead screws (302) one by one are respectively provided at the front and rear surfaces of the base (100) near the inner ends of each slot (300).

3. The high-strength main transmission shaft disassembly device for escalators as described in claim 1, characterized in that: The anti-falling component includes a sliding groove opening (400) provided in the middle of the upper end of the base (100). A limit sliding plate (401) is slidably connected in the sliding groove opening (400). A ratchet plate (402) is provided at the middle of the front surface of the sliding cylinder (200). The rear end of the limit sliding plate (401) is arranged in cooperation with the ratchet plate (402). A spring (403) is provided between the step surface of the limit sliding plate (401) and the front wall surface of the sliding groove opening (400). The spring (403) is movably sleeved outside the limit sliding plate (401).

4. The high-strength main drive shaft disassembly device dedicated to escalators according to claim 1, characterized in that: The limit component includes threaded holes respectively provided in the middle of the upper surfaces of the limit seats (203). Bolts (500) are respectively threadedly connected in the threaded holes. Pressure plates (501) are movably sleeved between two longitudinally adjacent bolts (500).

5. The high-strength main drive shaft disassembly device dedicated to escalators according to claim 1, characterized in that: Rotating rollers (600) are respectively rotatably connected in mounting grooves horizontally and evenly arranged on the upper surface of the rotating support plate (201).

6. The high-strength main drive shaft disassembly device dedicated to escalators according to claim 1, characterized in that: Universal wheels (700) are symmetrically distributed at the four corners of the lower surface of the base (100).

7. The high-strength main drive shaft disassembly device for escalators as claimed in claim 2, characterized in that: The center of the circle where the arc-shaped groove is located coincides with the axis of the support leg (301).

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