Pneumatic counterweight mechanism of gantry magnetic crane

The gantry magnetic lifting mechanism with pneumatic counterweights, employing pneumatic pressure balance lifting and gear rack motion, solves the problems of high cost and low efficiency of traditional motor direct-drive lifting mechanisms, achieving a more stable and controllable lifting effect.

CN223722608UActive Publication Date: 2025-12-26XIANGYANG BIG WORKER MFG TECH CO LTD
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Patent Information

Application Number
CN202423002555.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-12-26
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

In traditional hoisting mechanisms, direct-drive motors result in high costs, low operating efficiency, and high maintenance costs, which are particularly evident when hoisting heavy objects.

Method used

The gantry magnetic crane mechanism, which uses pneumatic counterweight, combines a main beam, a secondary beam, a lifting cylinder, and a gear rack to balance the lifting gravity with air pressure, replacing the traditional counterweight structure. It also uses an encoder to calculate the movement distance for precise position control.

Benefits of technology

It reduces overall weight and motor power, lowers production and maintenance costs, saves space, reduces the risk of working at heights, and improves structural stability and control reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pneumatic counterweight mechanism of a gantry magnetic crane, belongs to the technical field of pneumatic counterweight mechanisms, and replaces a counterweight block structure used in a traditional gravity balancing scheme to change the whole hoisting mechanism from one side of a main beam to the position under the main beam. A gear-rack movement mode and a lifting cylinder are adopted for assistance; the encoder measures and calculates the movement distance, and the stop positions of the secondary beam and the magnetic disk are accurate; the cylinder is used for balancing weight instead of a balancing weight, so that the overall weight is reduced, and the motor type selection power is reduced; an air source is used as a counterweight, so that the mounting structure and the mounting position of a counterweight block are saved, the production cost and the maintenance cost are reduced, and the overhaul is convenient; a pneumatic counterweight can be used for lowering a motor which is originally placed at the top, so that the overall space of the magnetic crane is saved, the upper space position of a plant is saved, and the risk of high-altitude operation during maintenance is also reduced; the mechanism originally arranged on the side face is moved to the middle, the whole structure is more stable, and walking is more controllable.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of gantry magnetic force hoist pneumatic counterweight mechanism, belong to pneumatic counterweight mechanism technical field. BACKGROUND

[0002] Traditional hoisting mechanism is basically motor direct drive, motor power increases with the mass of the hoisted article, and its cost is high, operation efficiency is low, maintenance cost is high, which has been a pain point.

[0003] Therefore, a kind of gantry magnetic force hoist of pneumatic counterweight needs to be improved for the above-mentioned deficiencies. INVENTION CONTENTS

[0004] The main purpose of the utility model is to provide a gantry magnetic force hoist pneumatic counterweight mechanism.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] Gantry magnetic force hoist pneumatic counterweight mechanism, including the main beam and vice beam for limiting, motor is installed on the main beam, the output end of motor is installed with transmission shaft, the outer end of transmission shaft is drivingly connected with gear rack;

[0007] The piston rod head of gear rack is fixedly connected with vice beam through base.

[0008] Preferably, the cylinder body of lifting cylinder is connected with main beam through mounting seat.

[0009] Preferably, the output power of motor is transmitted to main beam by transmission shaft.

[0010] Preferably, the main beam drives vice beam to descend.

[0011] Preferably, the piston rod of lifting cylinder fixedly connected by base of vice beam makes lifting cylinder elongate.

[0012] Preferably, lifting cylinder and vice beam are self-weight balanced.

[0013] The beneficial technical effects of the utility model are as follows:

[0014] The gantry magnetic force hoist pneumatic counterweight mechanism provided by the utility model,

[0015] Gantry magnetic force hoist pneumatic counterweight mechanism, including the main beam for equipment limiting adopts gravity of pneumatic balance hoisting, replaces the counterweight block structure used in traditional gravity counterweight scheme, changes the entire hoisting mechanism from one side of main beam to the bottom of main beam;

[0016] Gear rack movement mode is adopted, and lifting cylinder is assisted;

[0017] Encoder measures movement distance, and accurately stops the position of vice beam and magnetic disk;

[0018] 1. The use of a cylinder for weight replacement reduces the overall weight, and reduces the motor selection power;

[0019] 2. The use of air source as weight saves the installation structure and installation position of the weight block, reduces the production cost, maintenance cost, and facilitates maintenance;

[0020] 3. The use of pneumatic weight can lower the motor previously placed on the top, save the overall space size of the magnetic crane, save the upper space position of the factory building, and also reduce the risk of high-altitude operation during maintenance and repair;

[0021] 4. The mechanism originally on the side is moved to the middle, and the overall structure is more stable and the walking is more controllable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the pneumatic counterweight mechanism of the gantry magnetic crane according to the utility model;

[0023] Figure 2 It is an enlarged view of the structure at A of a preferred embodiment of the pneumatic counterweight mechanism of the gantry magnetic crane according to the utility model.

[0024] In the figure: 1, lifting cylinder; 2, gear rack; 3, main beam; 4, auxiliary beam; 5, base; 6, transmission shaft; 7, motor. DETAILED DESCRIPTION

[0025] In order to make the skilled person in the art more clear and clear the technical scheme of the utility model, the utility model will be further described in detail below in combination with the embodiments and the drawings, but the implementation manner of the utility model is not limited thereto.

[0026] As shown in Figure 1 - Figure 2 The pneumatic counterweight mechanism of the gantry magnetic crane provided by the embodiment includes a main beam 3 and an auxiliary beam 4 for limiting, a motor 7 is installed on the main beam 3, a transmission shaft 6 is installed at the output end of the motor 7, and a gear rack 2 is drivingly connected to the outer end of the transmission shaft 6.

[0027] The piston rod head of the gear rack 2 is fixedly connected with the auxiliary beam 4 through the base 5.

[0028] The cylinder body of the lifting cylinder 1 is connected with the main beam 3 through the mounting seat.

[0029] The output power of the motor 7 is transmitted to the main beam 3 by the transmission shaft 6.

[0030] The main beam 3 drives the auxiliary beam 4 to descend.

[0031] The piston rod of the lifting cylinder 1 fixedly connected by the base 5 of the auxiliary beam 4 makes the lifting cylinder 1 elongate.

[0032] The lifting cylinder 1 and the sub-beam 4 are self-weight balanced.

[0033] As shown in Figure 1 - Figure 2 The working process of the gantry magnetic lifting pneumatic counterweight mechanism is as follows: the piston rod head of the lifting cylinder 1 is fixedly connected with the sub-beam 4 through the base 5, and the cylinder body of the lifting cylinder 1 is connected with the main beam 3 through the mounting seat;

[0034] When the lifting mechanism is descending, the motor 7 rotates after receiving the descending instruction, the output power is transmitted to the gear-rack pair 2 through the transmission shaft 6, the sub-beam 4 is driven to descend, and the piston rod of the lifting cylinder 1 fixedly connected with the base 5 is driven by the sub-beam 4 to make the lifting cylinder 1 elongate;

[0035] The excess gas is discharged from the gas pipe below the lifting cylinder 1, when reaching the lower limit position, the motor 7 stops, the lifting power mechanism stops moving, the gas stops discharging from the lifting cylinder 1, and the lifting cylinder 1 and the sub-beam 4 are self-weight balanced.

[0036] When the lifting mechanism is ascending, the motor 7 reversely rotates after receiving the ascending instruction, the output power is transmitted to the gear-rack pair 2 through the transmission shaft 6, the sub-beam 4 is driven to ascend, and the piston rod of the lifting cylinder 1 fixedly connected with the base 5 is driven by the sub-beam 4 to make the lifting cylinder 1 shorten;

[0037] The gas enters from the gas pipe below the lifting cylinder 1, when reaching the upper limit position, the motor 7 stops, the lifting power mechanism stops moving, the gas stops entering the lifting cylinder 1, and the lifting cylinder 1 and the sub-beam 4 and the load thereof are balanced.

[0038] Embodiment

[0039] As shown in Figure 1 - Figure 2 The piston rod head of the lifting cylinder 1 is fixedly connected with the sub-beam 4 through the base 5, and the cylinder body of the lifting cylinder 1 is connected with the main beam 3 through the mounting seat, the outer end of the main beam 3 is provided with the motor 7, the output end of the motor 7 is provided with the transmission shaft 6, and the outer end of the transmission shaft 6 is provided with the gear-rack pair 2 in a transmission mode;

[0040] When the lifting mechanism is descending, the motor 7 rotates after receiving the descending instruction, the output power is transmitted to the gear-rack pair 2 through the transmission shaft 6, the sub-beam 4 is driven to descend, and the piston rod of the lifting cylinder 1 fixedly connected with the base 5 is driven by the sub-beam 4 to make the lifting cylinder 1 elongate;

[0041] The excess gas is discharged from the gas pipe below the lifting cylinder 1, when reaching the lower limit position, the motor 7 stops, the lifting power mechanism stops moving, the gas stops discharging from the lifting cylinder 1, and the lifting cylinder 1 and the sub-beam 4 are self-weight balanced.

[0042] When the lifting mechanism is ascending, the motor 7 rotates reversely after receiving the ascending instruction, the output power is transmitted to the gear rack pair 2 by the transmission shaft 6, the sub-beam 4 is driven to ascend, the piston rod of the lifting cylinder 1 fixedly connected with the base 5 is driven by the sub-beam 4, so that the lifting cylinder 1 is shortened;

[0043] The gas enters from the air pipe below the lifting cylinder 1, when reaching the upper limit position, the motor 7 stops, the lifting power mechanism stops moving, the gas stops entering the lifting cylinder 1, and the lifting cylinder 1 is balanced with the sub-beam 4 and the load thereof;

[0044] The gas cylinder is used for counterweight instead of counterweight block, so that the overall weight is reduced, and the motor selection power is reduced;

[0045] The gas source is used as counterweight, so that the installation structure and installation position of the counterweight block are omitted, the production cost and maintenance cost are reduced, and the maintenance is convenient;

[0046] The pneumatic counterweight can lower the motor previously placed on the top, saves the overall space size of the magnetic force crane, saves the upper space position of the factory building, and reduces the risk of high-altitude operation during maintenance and repair;

[0047] The mechanism originally on the side is moved to the middle, so that the structure is more stable as a whole, and walking is more controllable.

[0048] The above is only further embodiments of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the conception of the utility model within the range disclosed by the utility model makes equivalent replacement or change, belongs to the protection scope of the utility model.

Claims

1. A gantry magnetic hoist pneumatic counterweight mechanism, characterized in that: It comprises a main beam (3) and a sub-beam (4) for limiting, a motor (7) is installed on the main beam (3), a transmission shaft (6) is installed at the output end of the motor (7), and a gear rack (2) is drivingly connected to the outer end of the transmission shaft (6); The piston rod head of the gear rack (2) is fixedly connected with the sub-beam (4) through a base (5).

2. The gantry magnetic hoist pneumatic counterweight mechanism according to claim 1, characterized in that: The cylinder body of the lifting cylinder (1) is connected with the main beam (3) through a mounting seat.

3. The gantry magnetic hoist pneumatic counterweight mechanism according to claim 2, characterized in that: The output power of the motor (7) is transmitted to the main beam (3) by the transmission shaft (6).

4. The gantry magnetic hoist counterweight mechanism of claim 3, wherein: The main beam (3) drives the sub-beam (4) to descend.

5. The gantry magnetic hoist counterweight mechanism of claim 4, wherein: The piston rod of the lifting cylinder (1) fixedly connected with the sub-beam (4) by the base (5) makes the lifting cylinder (1) elongate.

6. The gantry magnetic hoist counterweight mechanism of claim 5, wherein: The lifting cylinder (1) is balanced with the self weight of the sub-beam (4).