CN216403605U - Galvanized traveling crane with safety automatic stop function - Google Patents

Abstract

The utility model discloses a galvanized traveling crane with a safety automatic stop function, which comprises a rack, wherein the rack is in sliding fit with a track used by the galvanized traveling crane through a guide rail frame and is provided with a moving mechanism, a hoisting mechanism and a safety automatic stop device; the moving mechanism drives the guide rail frame to slide back and forth on the rail; the safety automatic stop device comprises a movable frame, a stop block and a sensor; the lower parts of the left side and the right side of the rack or one side of the rack are connected with the movable frames in a sliding manner, and the movable frames surround the lower parts of the front part and the rear part of the lower part of the side of the rack; the stop block is fixedly connected to the movable frame and provided with a notch; the sensor is fixedly connected to the frame and is arranged opposite to the notch of the stop block; the sensor controls the starting and stopping of the moving mechanism. The utility model has the characteristics of high safety, simple structure, convenient operation and the like.

Description

Galvanized traveling crane with safety automatic stop function

Technical Field

The utility model relates to a galvanized travelling crane, in particular to a galvanized travelling crane with a safety automatic stop function.

Background

Galvanization refers to a surface treatment technology for plating a layer of zinc on the surface of metal, alloy or other materials to play the roles of beauty, rust prevention and the like. In the galvanizing process, the objects of the metal, the alloy or other materials needing galvanizing can be galvanized and then discharged only by carrying out various treatments on the objects of the metal, the alloy or other materials needing galvanizing along a galvanizing line; therefore, the objects to be galvanized, alloy or other materials are transported to the whole galvanizing line and the processing is completed, which can be completed by manpower with large workload. Therefore, the transport of the objects to complete galvanizing and discharging is often assisted by using a travelling crane; the crane used on the galvanizing line is basically the same as the crane which is called now, and can make the heavy object hung on the hook or other fetching device vertically lift or horizontally move in space. Although the object of metal, alloy or other materials can be conveniently and rapidly plated with zinc by utilizing the characteristics of the travelling crane, the travelling crane has larger kinetic energy due to the weight of the travelling crane and the weight of the hooked object in the moving process of the travelling crane along the galvanizing line, and the condition that the travelling crane collides workers and scratches the workers is easily caused by combining the continuous working or walking workers on the galvanizing line. But the driving at the present stage does not have the pedestrian protection function, so that the potential safety hazard of workers is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a galvanized travelling crane with a safety automatic stop function, which can effectively ensure the safety of workers.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a galvanized traveling crane with a safety automatic stop function comprises a rack, wherein the rack is in sliding fit with a track used by the galvanized traveling crane through a guide rail frame and is provided with a moving mechanism, a hoisting mechanism and a safety automatic stop device; the moving mechanism drives the guide rail frame to slide back and forth on the rail; the safety automatic stop device comprises a movable frame, a stop block and a sensor; the lower parts of the left side and the right side of the rack or one side of the rack are connected with the movable frames in a sliding manner, and the movable frames surround the lower parts of the front part and the rear part of the lower part of the side of the rack; the stop block is fixedly connected to the movable frame and provided with a notch; the sensor is fixedly connected to the frame and is arranged opposite to the notch of the stop block; the sensor controls the starting and stopping of the moving mechanism.

The galvanized travelling crane with the self-blowing function is characterized in that the safety self-stopping device comprises a positioning block; the positioning block is fixedly connected to the rack and is provided with a through hole; the frame body of the movable frame fixedly connected with the stop block penetrates through the through hole; and a limiting spring is arranged between the stop block and the positioning block.

The galvanizing traveling crane with the safety automatic stop function is additionally provided with a control circuit; the control circuit comprises a CPU; the moving mechanism comprises a driving motor; and the signal input end of the CPU is connected with the sensor, and the signal output end of the CPU is connected with the driving motor.

The galvanized travelling crane with the safety automatic stop function is characterized in that the hoisting mechanism comprises a hoisting motor, a rotating shaft, a scroll and a winding belt; the hoisting motor is fixedly connected to the frame, and the output end of the hoisting motor is connected with the rotating shaft; the rotating shaft is rotatably connected to the rack; the two reels are fixedly connected to two ends of the rotating shaft with the same axle center respectively; the number of the winding tapes is two, and each winding tape is opposite to one winding shaft; the upper end of each winding belt is fixedly connected with the corresponding reel, and the lower end of each winding belt is provided with a claw; the two hooks are respectively positioned on two sides of the connecting frame and are hooked on the connecting frame together.

In the galvanized travelling crane with the safety automatic stop function, the hoisting mechanism comprises a fixed rod which is horizontally arranged; the upper sides of the two end parts of the fixed rod are respectively connected with a winding belt, and the lower sides of the two end parts of the fixed rod are respectively fixedly connected with a claw.

Each claw comprises a positioning plate and two V-shaped supporting plates; the positioning plate is vertically arranged; the two V-shaped supporting plates are fixedly connected to the same plate surface of the positioning plate in a front-back opposite mode, and the openings of the two V-shaped supporting plates are arranged upwards.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: in the utility model, a driving motor drives a guide rail frame and a rack to move on a track; a safety automatic stop device is arranged on the outer side of the lower end of the frame; the safety automatic stop device is connected to the frame in a sliding way through a movable frame in the safety automatic stop device. The movable frame surrounds the lower part of the rack, the stop block is arranged on the movable frame, the opening is formed in the stop block, and the sensor opposite to the opening of the stop block is arranged on the rack to control the opening and closing of the moving mechanism, so that the movable frame can touch people firstly in the moving process of the rack; and as long as the movable frame touches people, the gap of the stop block is staggered with the sensor, so that the sensor controls the moving mechanism to stop running, and the phenomenon that the workers are injured by collision during driving is avoided. The utility model has the characteristics of high safety, simple structure, convenient operation and the like.

In addition, the movable frame is also provided with positioning blocks which are opposite to the positioning blocks in the front-back direction to realize movable connection of the movable frame; a limiting spring is arranged between the stop block and the positioning block to limit the relative movement of the stop block relative to the sensor; on one hand, the movable frame is ensured to stably move along with the travelling crane; on the other hand, after the movable frame touches a person, the driving motor stops running, after the person leaves the movable frame, the limit spring drives the stop block to automatically reset, the opening of the stop block corresponds to the sensor again, and the driving motor is guaranteed to normally run; the utility model also arranges a control circuit to realize the control of the sensor and the driving motor; according to the lifting mechanism, the lifting motor is arranged to drive the rotating shaft to rotate, the winding tape and the winding shaft are arranged between the rotating shaft and the hook jaw, the hook jaw is lifted or lowered by winding up or lowering down the winding tape through the winding shaft, the hook jaw hooks the connecting frame to adjust the position of the connecting frame, and after the connecting frame and components on the connecting frame are damaged, the connecting frame can be removed for maintenance; still connect the hook and winding through the dead lever, improve the equilibrium when winding promotes the hook. The utility model has the characteristics of high automation, easy maintenance, convenient operation and the like.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partial enlarged view of portion B of FIG. 1;

FIG. 4 is a front view of the present invention;

fig. 5 is a circuit control diagram of the present invention.

The figures are numbered: 1-a frame, 10-a guide plate; 2-moving mechanism, 20-driving motor, 21-rotating shaft; 3-hoisting mechanism, 30-hoisting motor, 31-driving shaft, 32-scroll, 33-winding belt, 34-fixing rod, 35-fixing shaft and 36-claw; 4-guide rail frame, 40-pulley, 41-guide wheel; 5-safety automatic stop device, 50-movable frame, 51-limit spring, 52-stop block, 53-sensor, 54-positioning block; 6-CPU; a VT-first triode; j1 — first relay; j1-1-first relay normally open control contact.

Detailed Description

Referring to fig. 1, 2, 3 and 4, the galvanization travelling crane with the safety automatic stop function comprises a guide rail, a frame 1, a moving mechanism 2, a hoisting mechanism 3, a guide rail frame 4 and a safety automatic stop device 5. The guide rail is arranged along a galvanizing line, and one side of the galvanizing line is a pedestrian area. And a guide rail bracket 4 is hooked on the guide rail. The guide rail frame 4 is fixedly connected with a frame 1. The frame 1 is two vertical plate bodies fixedly connected through a connecting rod, and the two plate bodies are distributed in the front-back direction and are arranged oppositely in the left-right direction. And the middle positions of the inner sides of the two plate bodies are respectively provided with a vertical guide plate 10. The moving mechanism 2 includes a drive motor 20 and a rotary shaft 21. The driving motor 20 is a worm gear speed reducer and is fixedly connected to the upper end of the rack 1, a bearing of the worm gear speed reducer is arranged in the left-right direction, and a rotating shaft 21 is fixedly connected in the bearing. Two guide rail frames 4 are provided, one guide rail frame 4 corresponds to one plate body and is fixedly connected to the upper end of the corresponding transverse plate in the front-back direction; the two guide rail frames 4 are arranged in a mirror image mode; each rail holder 4 is a sliding fit on one rail. Each rail frame 4 comprises two pulleys 40 and two guide wheels 41. One side of the one pulley 40 is vertically provided with a guide wheel 41. The two pulleys 40 on the same guide rail frame 4 are vertically arranged inside the guide rail frame 4 and are respectively and rotatably connected to the front end and the rear end of the guide rail frame 4; four pulleys 40 are arranged on different guide rail frames 4, and two pulleys 40 at the front end or the rear end are arranged in pairs in a left-right opposite mode. The rotating shaft 21 is rotatably connected to the two rail brackets 4. Two ends of the rotating shaft 21 respectively penetrate into the corresponding guide rail frame 4, and are respectively fixedly connected with a pulley 40 with the same axle center. Thus, after the rail frame 4 is fastened to the rail, each pulley 40 is pressed against the rail. The guide wheel 41 on the side of the pulley 40 is now on the side of the rail and abuts the rail wall of the rail. As long as the driving motor 20 operates, the two pulleys 40 fixedly connected with the rotating shaft 21 can be driven to rotate by driving the rotating shaft 21, so as to drive the guide rail frame 4 to move back and forth on the guide rail. The moving guide rail frame 4 drives the machine frame 1 to move. The guide wheels 41 are always attached to the side walls of the rail during the movement, which increases the stability of the rail frame 4 and the machine frame 1 during the movement.

Referring to fig. 1, 2, 3 and 4, the hoisting mechanism 3 of the galvanized traveling crane with the safety automatic stop function comprises a hoisting motor 30, a rotating shaft 31, a winding shaft 32, a winding belt 33, a fixed rod 34, a fixed shaft 35 and a hook claw 36. The hoisting motor 30 is a worm gear speed reducer and is fixedly connected to the upper end of the frame 1, a bearing of the worm gear speed reducer is arranged in the left-right direction, and a rotating shaft 31 is fixedly connected in the bearing. The rotating shaft 31 is located between two plate bodies of the frame 1, and two ends of the rotating shaft are respectively fixedly connected with a scroll 32. The scroll 32 is adjacent to the plate body on the same side and is rotatably connected to the upper end of the frame 1. The number of the tapes 33 is the same as that of the reels 32, and the tapes are provided in pairs. The upper end of each tape 33 is arranged along the axial direction of the paired reels 32 and is fixedly connected to the shafts of the paired reels 32. The lower end of each winding belt 33 is fixedly connected with a fixed shaft 35. The two fixed shafts 35 are fixedly connected with the fixed rod 34 and are respectively arranged at two ends of the fixed rod 34. Each fixed shaft 35 is vertically opposed to the reel 32 on the same side. The fixing rod 34 is arranged in the left-right direction, and two end parts of the fixing rod are fixedly connected with a vertically arranged square plate respectively; the square plate and one side of the plate body of the corresponding same-side rack 1 are rotatably connected with four fixed rod guide wheels. The four fixed rod guide wheels are respectively positioned at four corners of the square plate and are distributed on two sides of the guide plate 10 from front to back, and each guide wheel is arranged on the plate body of the guide plate 10 which slides up and down. The number of the claws 36 is two, and each claw 36 comprises a positioning plate and two V-shaped supporting plates; the two V-shaped supporting plates are vertically and fixedly connected to the same surface of the positioning plate, and the openings of the two V-shaped supporting plates are upwards distributed on two sides of the lower end part of the positioning plate. One side of the positioning plate of the two claws 36 fixedly connected with the V-shaped supporting plate is arranged oppositely left and right and is vertically and downwards fixedly connected to two end parts of the fixing rod 34; the two V-shaped support plates of the two hooks 36 are left-right opposite. Thus, when the hook claw 36 is required to hook an object, the rotation of the hoisting motor 30 drives the driving shaft 31 to rotate, and further drives the reel 32 to lower the tape 33 to lower the fixing shaft 35. As the fixed shaft 35 moves down, the fixed shaft 34 fixed thereto slides down along the guide plate 10 and drives the hook 36 to move down until the V-shaped support plate of the hook 36 moves down to a position where an object can be hooked. The hoist motor 30 is then again activated to rotate the drive shaft 31 in the opposite direction, which in turn causes the spool 32 to wind up the tape 33 and thereby the stationary shaft 35. As the fixed shaft 35 moves upward, the fixed rod 34 fixed thereto slides upward along the guide plate 10. The upward moving fixing rod 34 drives the V-shaped supporting plate of the hook claw 36 to move upward to hook the object. The hoist motor 30 is turned off after the article is hooked up, and the article is in a hooked up state. So that the moving mechanism 2 is subsequently activated to move the article along the track.

Referring to fig. 1, 2, 3, 4 and 5, the galvanized vehicle with the safety automatic stop function has the safety automatic stop device 5 arranged outside the lower end of the frame 1, and comprises a movable frame 50, a limit spring 51, a stop 52, a sensor 53 and a positioning block 54. The number of the positioning blocks 54 is four, and each positioning block 54 is a block body provided with a front-back circular through hole. The four positioning blocks 54 are distributed in a rectangular array and fixedly connected to the outer side of the end plate body under the machine frame 1. The movable frame 50 is a rectangular frame consisting of a transverse round rod and a vertical round rod, and is arranged on a plate body at the lower end part of the machine frame 1 on the same side with the positioning block 54; two short side round rods of the movable frame 50 are vertically arranged at the front side and the rear side of the frame 1 respectively, and the lower ends of the two round rods are positioned at the lower side of the frame 1; the number of the longer side round rods is three, and the three round rods are transversely arranged between the two shorter side round rods at intervals; wherein, two longer side round rods are respectively fixedly connected with the upper and lower ends of the two vertical round rods, and the rest one is fixedly connected between the two vertical round rods at the lower end part of the relative frame 1. The uppermost round rod of the three round rods is connected in a front-back sliding manner in through holes of two positioning blocks 54 above the four positioning blocks 54 distributed in a rectangular array; a round rod in the middle is connected in a sliding manner back and forth in through holes of two positioning blocks 54 below the four positioning blocks 54 which are distributed in a rectangular array; the movable frame 50 can be additionally arranged on the other side of the rack 1 opposite to the other movable frame 50. In this way, the two round rods are slidably fitted in the four positioning blocks 54 distributed in a rectangular array back and forth, so that the swing of the movable frame 50 in other directions can be prevented when sliding in the positioning blocks 54. The stopper 52 is a block body with a notch at the upper end. The stopper 52 is fixedly connected to the rod body between the two positioning blocks 54 on the long-side round rod in the middle of the movable frame 50, and is respectively opposite to the two positioning blocks 54 in the front-back direction. And a sensor 53 is fixedly connected on the plate body of the frame 1 above the gap of the adjacent positioning block 54. The sensor 53 can be respectively opposite to the notch of the stopper 52 or the blocks on the front and rear sides of the notch of the stopper 52. The sensor 53 controls the opening and closing of the driving motor 20, and thus controls the start and stop of the moving mechanism 2.

Referring to fig. 1, 2, 3 and 4, the galvanization travelling crane with the safety automatic stop function has two limiting springs 51, the two limiting springs 51 are respectively positioned between two positioning blocks 54 and a stop block 52, and the end parts of the two limiting springs are abutted against the wall body of the corresponding positioning block 54 or stop block 52. This limits the relative movement of stop 52 with respect to sensor 53; on one hand, the stable movement of the movable frame 1 is ensured; on the other hand, after the movable frame 1 touches a person, as long as the person leaves the movable frame 1, the limit spring 51 can drive the stopper 52 to automatically reset, and the opening of the stopper 52 corresponds to the sensor 53 again.

Referring to fig. 1, 2, 3, 4 and 5, the galvanized vehicle with the safety automatic stop function is additionally provided with a CPU6, a first triode VT, a first relay J1 and a first relay normally open control contact J1-1. The P2.0 interface of the CPU6 is connected with the base electrode of a first triode VT; the collector of the first triode VT is connected with a power supply through a first relay J1, and the emitter is grounded; one end of the first relay normally open control contact J1-1 is connected with a power supply, and the other end is connected with the driving motor 20 and then grounded. The sensor 53 is a proximity sensor, when the sensor 53 is opposite to the notch of the stopper 52 up and down, the sensor 53 does not detect a signal, and the driving motor 20 is in a running state; when the sensor 53 is opposite to the blocks on the front and rear sides of the notch of the stop block 52, the sensor 53 detects a signal and controls the driving motor 20 to be turned off. Thus, during the movement of the moving mechanism 2 along the rail, the notch of the stopper 52 is vertically opposed to the sensor 53, and the sensor 53 is in a state of not detecting a signal. Then, the two limit springs 51 limit the stable random movement of the movable frame 50 along with the frame 1, and ensure that the gaps between the sensor 53 and the stopper 52 are always in a state of being opposite up and down. Because the middle rod body of the long-side round rod on the upper side of the movable frame 50 is opposite to the plate body at the lower end part of the machine frame 1, the front end and the rear end of the movable frame 50 with a rectangular frame structure are respectively positioned at the front side and the rear side of the machine frame 1. Therefore, in the moving process of the frame 1, as soon as the front end or the rear end of the movable frame 50 touches a human body, the movable frame 50 slides in the positioning block 54 to drive the stopper 52 fixedly connected with the movable frame 50 to move back and forth. When the block sensors 53 on the front side and the rear side of the notch are opposite to each other up and down when the stop block 52 moves, the sensors 53 detect signals, control the driving motor 20 to be closed, and stop the movement of the travelling crane, so that the worker is prevented from being injured by collision. Then, as long as the worker leaves the movable frame 50, the stopper 52 can be reset through the limiting spring 51, then the gap of the stopper 52 is opposite to the sensor 53 up and down again, the sensor 53 does not detect a signal, and the driving motor 20 operates again to control the travelling crane to move.

Claims (6)

1. A galvanization driving with a safety automatic stop function is characterized in that: the device comprises a rack (1), wherein the rack (1) is in sliding fit with a track used by a galvanized travelling crane through a guide rail frame (4), and is provided with a moving mechanism (2), a hoisting mechanism (3) and a safety automatic stop device (5); the moving mechanism (2) drives the guide rail bracket (4) to slide back and forth on the rail; the safety automatic stop device (5) comprises a movable frame (50), a stop block (52) and a sensor (53); the lower parts of the left side and the right side of the rack (1) or one side of the rack are slidably connected with a movable frame (50), and the movable frame (50) surrounds the lower parts of the front part and the rear part of the lower part of the side of the rack (1); the stop block (52) is fixedly connected to the movable frame (50), and the stop block (52) is provided with a notch; the sensor (53) is fixedly connected to the rack (1) and is arranged opposite to the notch of the stop block (52); the sensor (53) controls the starting and stopping of the moving mechanism (2).

2. The galvanization travelling crane with the safety automatic stop function according to claim 1, characterized in that: the safety automatic stop device (5) comprises a positioning block (54); the positioning block (54) is fixedly connected to the rack (1) and is provided with a through hole; the frame body of the movable frame (50) fixedly connected with the stop block (52) penetrates through the through hole; and a limiting spring (51) is arranged between the stop block (52) and the positioning block (54).

3. The galvanization travelling crane with the safety automatic stop function according to claim 1, characterized in that: a control circuit is additionally arranged; the control circuit comprises a CPU (6); the moving mechanism (2) comprises a driving motor (20); and a signal input end of the CPU (6) is connected with the sensor (53), and a signal output end of the CPU is connected with the driving motor (20).

4. The galvanization vehicle with the safety automatic stop function according to claim 1, 2 or 3, characterized in that: the hoisting mechanism (3) comprises a hoisting motor (30), a rotating shaft (31), a reel (32) and a winding belt (33); the hoisting motor (30) is fixedly connected to the rack (1), and the output end of the hoisting motor is connected with the rotating shaft (31); the rotating shaft (31) is rotatably connected to the rack (1); the two reels (32) are respectively and coaxially fixedly connected to two ends of the rotating shaft (31); two tapes (33) are provided, each tape (33) being opposite to one reel (32); the upper end of each winding belt (33) is fixedly connected with the corresponding reel (32), and the lower end of each winding belt is provided with a claw (36); the two hooks (36) are respectively positioned at two sides of the connecting frame and hook the connecting frame together.

5. The galvanization travelling crane with the safety automatic stop function according to claim 4, characterized in that: the hoisting mechanism (3) comprises a fixed rod (34) which is horizontally arranged; the upper sides of the two end parts of the fixed rod (34) are respectively connected with a winding belt (33), and the lower sides of the two end parts are respectively fixedly connected with a claw (36).

6. The galvanization traveling crane with the safety automatic stop function according to claim 5, characterized in that: each claw (36) comprises a positioning plate and two V-shaped supporting plates; the positioning plate is vertically arranged; the two V-shaped supporting plates are fixedly connected to the same plate surface of the positioning plate in a front-back opposite mode, and the openings of the two V-shaped supporting plates are arranged upwards.

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