Escalator shaft tube assembling and positioning device

Abstract

The utility model relates to the technical field of escalator shaft tube machining, and particularly discloses an escalator shaft tube assembling and positioning device which comprises a positioning frame, four sets of positioning grooves are formed in the top of the positioning frame, positioning and clamping mechanisms used for clamping shaft tubes are installed in the positioning grooves, and buffering mechanisms are arranged on the left side and the right side of the positioning frame. A flue gas absorption mechanism is arranged in the positioning frame; the positioning and clamping mechanism comprises a clamping screw penetrating through the interior of the positioning frame, the clamping screw is in threaded connection with the positioning frame through a nut, the tail end of the clamping screw is connected with a clamping plate through a bearing, the surface of the clamping plate is elastically connected with a rubber pad, a guide rod is installed between the clamping plate and the positioning groove, and the guide rod is connected with the clamping plate through a bearing. And the guide rod penetrates through the interior of the positioning groove, and a rotary knob is fixedly arranged at the end, penetrating through the positioning frame, of the clamping screw rod. According to the utility model, the shaft tube can be stably clamped through the positioning and clamping mechanism, so that the shaft tube is prevented from rotating in the positioning groove.

Description

Technical Field

[0001] This utility model relates to the field of escalator shaft tube processing technology, and in particular to an automatic escalator shaft tube assembly and positioning device. Background Technology

[0002] An escalator is composed of a specially structured chain conveyor and two specially structured belt conveyors, featuring a circulating escalator path capable of transporting passengers to buildings of varying heights. Escalators typically consist of a drive unit, tensioning device, guide rails, and electrical system. The drive unit, specifically the escalator shaft, usually refers to the main drive shaft and its associated support and transmission components. The main drive shaft, driven by a motor, moves the sprockets, thus propelling the escalator path. It simultaneously supports the entire weight of the escalator and withstands the inertial and impact forces generated by its movement.

[0003] Displacement may occur during the welding process of escalator shaft tubes, which may lead to a reduction in welding accuracy.

[0004] The existing publicly available technical solution, announcement number CN220811543U, discloses an escalator shaft tube assembly and positioning device, including a positioning frame, a support leg provided below the positioning frame, a positioning device provided at the upper end of the inner surface of the positioning frame, and a buffer device provided at the lower end of the positioning frame. The positioning device can be used to position the shaft tube before welding.

[0005] In actual implementation, the above technical solution uses a movable rod to position the shaft tube. However, the end of the movable rod is circular, resulting in a small contact area with the surface of the shaft tube. Since the shaft tube is cylindrical, it is prone to rotating on the positioning frame, which affects the welding accuracy of the shaft tube. Summary of the Invention

[0006] The purpose of this utility model is to provide an escalator shaft tube assembly and positioning device that can stably clamp the shaft tube through a positioning clamping mechanism, preventing the shaft tube from rotating in the positioning groove, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an escalator shaft tube assembly and positioning device, including a positioning frame, the top of the positioning frame having four sets of positioning slots, and the positioning slots having a positioning clamping mechanism for clamping the shaft tube installed inside, the positioning frame having a buffer mechanism on both the left and right sides, and the positioning frame having a smoke absorption mechanism inside.

[0008] The positioning and clamping mechanism includes a clamping screw that passes through the inside of the positioning frame, and the clamping screw is threadedly connected to the positioning frame by a nut. The end of the clamping screw is connected to a clamping plate through a bearing, and a rubber pad is elastically connected to the surface of the clamping plate.

[0009] Preferably, a guide rod is installed between the clamping plate and the positioning groove, and the guide rod passes through the interior of the positioning groove. A knob is fixedly installed at one end of the clamping screw that passes through the positioning frame.

[0010] Preferably, a telescopic rod is fixedly connected between the clamping plate and the rubber pad, and a support spring is sleeved on the outside of the telescopic rod. The two ends of the support spring are respectively fixed to the adjacent surfaces of the clamping plate and the rubber pad.

[0011] Preferably, the flue gas absorption mechanism includes an air intake impeller installed inside the positioning frame, and the power output end of a servo motor is fixedly connected to the middle of the air intake impeller.

[0012] Preferably, the positioning frame is provided with air suction pipes on both the left and right sides, and the bottom of the positioning frame is a hollow structure.

[0013] Preferably, a support plate is fixedly connected to the end of the suction pipe, and a plurality of equally spaced suction holes are opened on the top of the support plate.

[0014] Preferably, the buffer mechanism includes a limiting slider fixed to the side of the support plate near the positioning frame, and a limiting groove is provided at the connection between the limiting slider and the positioning frame. A shock-absorbing damping rod is fixedly installed at the connection between the limiting slider and the limiting groove, and a shock-absorbing spring is sleeved on the outside of the shock-absorbing damping rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting clamping plates and rubber pads that are compatible with the surface dimensions and structure of the escalator shaft tube, the escalator shaft tube can be clamped and positioned to prevent the rotation of the escalator shaft tube from affecting the welding accuracy of the escalator shaft tube;

[0017] 2. The fume absorption mechanism can draw the fumes generated during welding into the suction pipe through the suction hole by the rotation of the suction impeller, and then into the hollow area of ​​the positioning frame through the suction pipe, thereby achieving the absorption of fumes during welding. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the clamping plate of this utility model;

[0021] Figure 3 For the present utility model Figure 1 Enlarged view of A in the middle;

[0022] Figure 4 This is a cross-sectional structural diagram of the bottom of the positioning frame of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Positioning frame; 2. Positioning groove; 3. Flue gas absorption mechanism; 301. Support plate; 302. Suction hole; 303. Suction pipe; 304. Suction impeller; 305. Servo motor; 4. Positioning clamping mechanism; 401. Knob; 402. Clamping screw; 403. Clamping plate; 404. Rubber pad; 405. Telescopic rod; 406. Support spring; 407. Guide rod; 5. Buffer mechanism; 501. Limiting slider; 502. Limiting groove; 503. Shock-absorbing damping rod; 504. Shock-absorbing spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 An escalator shaft tube assembly and positioning device includes a positioning frame 1. The top of the positioning frame 1 is provided with four sets of positioning slots 2, and the positioning slots 2 are equipped with positioning clamping mechanisms 4 for clamping shaft tubes. Buffering mechanisms 5 are provided on both the left and right sides of the positioning frame 1, and a smoke absorption mechanism 3 is provided inside the positioning frame 1.

[0028] The positioning and clamping mechanism 4 includes a clamping screw 402 that passes through the inside of the positioning frame 1. The clamping screw 402 is threadedly connected to the positioning frame 1 by a nut. The end of the clamping screw 402 is connected to a clamping plate 403 by a bearing. A rubber pad 404 is elastically connected to the surface of the clamping plate 403.

[0029] A guide rod 407 is installed between the clamping plate 403 and the positioning groove 2, and the guide rod 407 passes through the interior of the positioning groove 2. A knob 401 is fixedly installed at one end of the clamping screw 402 that passes through the positioning frame 1. A telescopic rod 405 is fixedly connected between the clamping plate 403 and the rubber pad 404, and a support spring 406 is sleeved on the outside of the telescopic rod 405. The two ends of the support spring 406 are respectively fixed to the adjacent surfaces of the clamping plate 403 and the rubber pad 404.

[0030] By adopting the above technical solution, the escalator shaft tube is placed inside the positioning groove 2 using a hoisting device. Rotating the knob 401 causes the clamping screw 402 to rotate, allowing its other end to penetrate the positioning groove 2 and move towards the escalator shaft tube. This causes the clamping plate 403 to move closer to the escalator shaft tube, and the guide rod 407 on the clamping plate 403 guides its movement until the rubber pad 404 on the clamping plate 403 is firmly against the escalator shaft tube. Rotating the clamping screw 402 then stops, at which point the telescopic rod 405 and the support spring 406 between the clamping plate 403 and the rubber pad 404 press inwards. The support spring 406 generates an outward thrust, which pushes the rubber pad 404 to press against the escalator shaft tube, positioning and clamping the escalator shaft tube. The surface of the rubber pad 404 has an arc-shaped structure that matches the shape of the escalator shaft tube, increasing the contact surface between the rubber pad 404 and the escalator shaft tube. It is worth noting that, in order to further improve the friction between the rubber pad 404 and the escalator shaft tube, anti-slip strips can be set on the surface of the rubber pad 404. By setting the clamping plate 403 and the rubber pad 404, which are adapted to the surface size and structure of the escalator shaft tube, the escalator shaft tube can be clamped and positioned, preventing the rotation of the escalator shaft tube from affecting the welding accuracy of the escalator shaft tube.

[0031] Specifically, such as Figure 4 As shown, the flue gas absorption mechanism 3 includes an air intake impeller 304 installed inside the positioning frame 1, and the power output end of the servo motor 305 is fixedly connected to the middle of the air intake impeller 304. Air intake pipes 303 are provided on both the left and right sides of the positioning frame 1, and the bottom of the positioning frame 1 is a hollow structure. The end of the air intake pipe 303 is fixedly connected to a support plate 301, and the top of the support plate 301 is provided with multiple equally spaced and evenly distributed air intake holes 302.

[0032] The buffer mechanism 5 includes a limiting slider 501 fixed on the side of the support plate 301 near the positioning frame 1, and a limiting groove 502 is provided at the connection between the limiting slider 501 and the positioning frame 1. A shock-absorbing damping rod 503 is fixedly installed at the connection between the limiting slider 501 and the limiting groove 502, and a shock-absorbing spring 504 is sleeved on the outside of the shock-absorbing damping rod 503.

[0033] By adopting the above technical solution, when the escalator shaft tube is placed inside the positioning groove 2, the flanges at both ends can be located above the support plate 301. Under the action of gravity, the escalator shaft tube sinks into the positioning groove 2. At the same time, the flange pushes the support plate 301 to move downward. The support plate 301 slides inside the limiting slide groove 502 through the limiting slider 501. Meanwhile, the shock-absorbing damping rod 503 and the shock-absorbing spring 504 can play a certain buffering role on the impact force between the flange and the support plate 301. During welding, the servo motor 305 can be started, and the suction fan wheel 304 is driven to rotate through the power output end of the servo motor 305. At this time, the fumes generated during welding in the flange area can be sucked into the suction pipe 303 through the suction hole 302 and enter the hollow area of ​​the positioning frame 1 through the suction pipe 303 to achieve the absorption of welding fumes.

[0034] Working Principle: The escalator shaft tube is placed inside the positioning slot 2 by the hoisting equipment. Rotating the knob 401 causes the clamping screw 402 to rotate, allowing its other end to penetrate the positioning slot 2 and move closer to the escalator shaft tube. This moves the clamping plate 403 closer to the escalator shaft tube, and the guide rod 407 on the clamping plate 403 guides its movement until the rubber pad 404 on the clamping plate 403 is tightly pressed against the escalator shaft tube. Rotating the clamping screw 402 stops the movement. At this point, the telescopic rod 405 and the support spring 406 between the clamping plate 403 and the rubber pad 404 press inwards, while the support spring 406 generates an outward thrust, pushing the rubber pad 404 to press against the escalator shaft tube, thus positioning and clamping the escalator shaft tube. The surface of the rubber pad 404 has an arc-shaped structure and is flush with the escalator shaft tube. The tube shape is matched, increasing the contact surface between the rubber pad 404 and the escalator shaft tube. When the escalator shaft tube is placed inside the positioning groove 2, the flanges at both ends can be located above the support plate 301. Under the action of gravity, the escalator shaft tube sinks into the positioning groove 2. At the same time, the flange pushes the support plate 301 to move downward. The support plate 301 slides inside the limiting slide groove 502 through the limiting slider 501. Meanwhile, the shock-absorbing damping rod 503 and the shock-absorbing spring 504 can play a certain buffering role on the impact force between the flange and the support plate 301. During welding, the servo motor 305 can be started, and the suction fan wheel 304 is driven to rotate through the power output end of the servo motor 305. At this time, the fumes generated during welding in the flange area can be sucked into the suction pipe 303 through the suction hole 302 and enter the hollow area of ​​the positioning frame 1 through the suction pipe 303 to achieve the absorption of welding fumes.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An escalator shaft tube assembly and positioning device, comprising a positioning frame (1), characterized in that: The top of the positioning frame (1) is provided with four sets of positioning slots (2), and the positioning slots (2) are equipped with positioning clamping mechanisms (4) for clamping shaft tubes. The left and right sides of the positioning frame (1) are provided with buffer mechanisms (5), and the inside of the positioning frame (1) is provided with a flue gas absorption mechanism (3). The positioning and clamping mechanism (4) includes a clamping screw (402) that passes through the inside of the positioning frame (1), and the clamping screw (402) is connected to the positioning frame (1) by a nut thread. The end of the clamping screw (402) is connected to a clamping plate (403) by a bearing, and a rubber pad (404) is elastically connected to the surface of the clamping plate (403).

2. The escalator shaft tube assembly and positioning device according to claim 1, characterized in that: A guide rod (407) is installed between the clamping plate (403) and the positioning groove (2), and the guide rod (407) passes through the interior of the positioning groove (2). A knob (401) is fixedly installed at one end of the clamping screw (402) that passes through the positioning frame (1).

3. The escalator shaft tube assembly and positioning device according to claim 2, characterized in that: A telescopic rod (405) is fixedly connected between the clamping plate (403) and the rubber pad (404), and a support spring (406) is sleeved on the outside of the telescopic rod (405). The two ends of the support spring (406) are respectively fixed to the adjacent surfaces of the clamping plate (403) and the rubber pad (404).

4. The escalator shaft tube assembly and positioning device according to claim 3, characterized in that: The flue gas absorption mechanism (3) includes an air intake impeller (304) installed inside the positioning frame (1), and the power output end of a servo motor (305) is fixedly connected to the middle of the air intake impeller (304).

5. The escalator shaft tube assembly and positioning device according to claim 4, characterized in that: The positioning frame (1) is provided with air suction pipes (303) on both the left and right sides, and the bottom of the positioning frame (1) is a hollow structure.

6. The escalator shaft tube assembly and positioning device according to claim 5, characterized in that: The end of the suction pipe (303) is fixedly connected to a support plate (301), and the top of the support plate (301) is provided with a plurality of equally spaced suction holes (302).

7. The escalator shaft tube assembly and positioning device according to claim 6, characterized in that: The buffer mechanism (5) includes a limiting slider (501) fixed on the side of the support plate (301) near the positioning frame (1), and a limiting groove (502) is provided at the connection between the limiting slider (501) and the positioning frame (1). A shock-absorbing damping rod (503) is fixedly installed at the connection between the limiting slider (501) and the limiting groove (502), and a shock-absorbing spring (504) is sleeved on the outside of the shock-absorbing damping rod (503).

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