Accurate positioning equipment for low-clearance travelling crane

By combining guide rails, precision devices, and cylinder-driven telescopic rods, the problem of positional deviation during cargo loading and unloading of low-headroom overhead cranes is solved, achieving precise positioning and stable fixation of the vehicle body, thus ensuring the safe loading and unloading of goods.

CN223779822UActive Publication Date: 2026-01-09ZHEJING EAST MASCH CO LTD
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Patent Information

Application Number
CN202520393659.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-09
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Existing low-headroom overhead cranes have difficulty accurately controlling the movement distance during cargo loading and unloading, leading to positional deviations and a high risk of collisions and damage, especially when loading and unloading precision parts or fragile items.

Method used

The design employs a combination of guide rails, precision devices, cylinders, and telescopic rods. Through the cooperation of the measuring rod and pointer, the precise positioning of the vehicle body is achieved. The telescopic rod is driven by the cylinder to insert into the fixed groove to ensure the stability of the vehicle body. Combined with the cleaning of impurities on the measuring rod with a soft bristle, the accuracy of the position is ensured.

Benefits of technology

It ensures accurate placement of goods in designated locations, reduces collisions and damage caused by positional deviations, and improves the safety and stability of the loading and unloading process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223779822U_ABST
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Abstract

The utility model relates to the technical field of low-clearance travelling cranes, in particular to low-clearance travelling crane accurate positioning equipment which comprises a guide rail and an accurate device, the surface of the guide rail is connected with a vehicle body in a sliding mode, a lifting appliance is arranged on the lower surface of the vehicle body, and the accurate device is arranged on the lower surface of the vehicle body and comprises a support which is fixedly connected with the guide rail. The upper surface of the support is fixedly connected with a measuring rod, the upper surface of the vehicle body is fixedly connected with a supporting rod, the upper surface of the supporting rod is fixedly connected with a sliding sleeve, the sliding sleeve is sleeved with the measuring rod, and the surface of the sliding sleeve is fixedly connected with a pointer. The problems of collision, damage and the like caused by position deviation are reduced, and the moving state of the vehicle body can be conveniently adjusted in time.
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Description

TECHNICAL FIELD

[0001] The utility model relates to low clearance travelling crane technical field especially relates to a low clearance travelling crane accurate positioning equipment. BACKGROUND

[0002] Low clearance travelling crane is a kind of hoisting equipment suitable for space limited environment, its unique design can effectively reduce the limit height of lifting hook, plays an important role in the workshop, warehouse and other places with low clearance height, it usually adopts compact structure layout, such as specially designed electric hoist or trolley running mechanism, to reduce overall height, can stably and safely hoist and carry goods, meets the demand of material handling in industrial production, and is widely used in mechanical manufacturing, warehousing logistics and other industries.

[0003] In prior art, such as the utility model with publication number CN207276057U, the utility model relates to travelling crane field, and specifically relates to a super-low clearance travelling crane, which comprises a travelling crane frame, travelling crane rollers, a travelling crane track, a lifting mechanism and a lifting mechanism support, the travelling crane rollers are rotatably arranged on both sides of the travelling crane frame and are slidably arranged on the travelling crane track, the two side edges of the travelling crane frame perpendicular to the travelling crane track are I-shaped tracks, and the lifting mechanism comprises a bottom frame, four groups of transfer rollers, a transfer roller driving motor, a winch, a lifting hook and a winch driving motor.The winch mechanism is designed as a concealed structure, is located on the inner side of the bottom frame and is high above the winch height through the support, and the balance and stability of the whole are ensured through the structure improvement and driving improvement of the transfer roller and the winch driving structure improvement.

[0004] However, in the existing most travelling cranes, it is difficult to accurately move the distance of the travelling crane during the loading and unloading of goods, and collision, damage and other problems caused by position deviation are prone to occur, especially for the loading and unloading of precision parts or fragile goods with high position accuracy requirements, which can bring great risks. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in prior art that in the existing most travelling cranes, it is difficult to accurately move the distance of the travelling crane during the loading and unloading of goods, and collision, damage and other problems caused by position deviation are prone to occur, especially for the loading and unloading of precision parts or fragile goods with high position accuracy requirements, which can bring great risks, and provides a low clearance travelling crane accurate positioning equipment.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a low clearance truck accurate positioning equipment, including guide rail and accurate device, the surface of guide rail is connected with the car body of sliding, the lower surface of car body is provided with the spreader, the lower surface of car body is provided with accurate device, accurate device includes support, support is fixedly connected with guide rail, the upper surface of support is fixedly connected with measuring rod, the upper surface of car body is fixedly connected with support rod, the upper surface of support rod is fixedly connected with sliding sleeve, sliding sleeve is covered with measuring rod, the surface of sliding sleeve is fixedly connected with the needle, through setting accurate device, in the process of loading and unloading, accurate car movement distance can make goods accurately place in the specified position, reduce the collision, damage and other problems caused by position deviation, convenient for timely adjustment car body's moving state.

[0007] Preferably, one side of the car body is fixedly connected with the air cylinder, and the driving end of the air cylinder is fixedly connected with the telescopic rod.

[0008] Preferably, the surface of the guide rail is provided with a plurality of fixing grooves, and the fixing grooves are arranged in a linear array.

[0009] Preferably, the telescopic rod is inserted into the fixing groove, and the surface of the measuring rod is provided with a scale.

[0010] Preferably, one side of the sliding sleeve is fixedly connected with a sleeve ring, and the inner wall of the sleeve ring is fixedly connected with soft hair.

[0011] Preferably, the sleeve ring is sleeved with the measuring rod, and the soft hair is in contact with the measuring rod.

[0012] Preferably, the two collars are arranged in the middle of the sliding sleeve, and the collars are connected with the sliding sleeve and the soft hairs, when the sliding sleeve moves with the vehicle body, the collars are pushed, and the collars can transmit the power of the sliding sleeve to the soft hairs, so that the soft hairs can clean the measuring rod with the movement of the vehicle body, and the effective transmission of power from the sliding sleeve to the soft hairs is realized.

[0013] Compared with the prior art, the low-clearance travelling crane precise positioning equipment has the advantages and positive effects that:

[0014] In the utility model, when the vehicle body works, the vehicle body moves, and the sliding sleeve moves with the vehicle body, and the sliding sleeve pushes the collars while moving, the collars drive the soft hairs to clean the measuring rod, and the operator can determine the moving distance of the vehicle body by the pointer and the scale of the measuring rod, when the vehicle body reaches the appropriate distance, the cylinder drives the telescopic rod to insert into the fixed groove to complete the fixation, through the utility model, the moving distance of the travelling crane can be accurately determined during the loading and unloading of goods, the goods can be accurately placed in the designated position, the problems such as collision and damage caused by position deviation are reduced, and the moving state of the vehicle body can be adjusted in time. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic view of the low-clearance travelling crane precise positioning equipment is provided for the utility model;

[0016] Figure 2 A side view structure schematic view of the low-clearance travelling crane precise positioning equipment is provided for the utility model;

[0017] Figure 3 An accurate device structure schematic view of the low-clearance travelling crane precise positioning equipment is provided for the utility model;

[0018] Figure 4 An A place enlarged structure schematic view of the low-clearance travelling crane precise positioning equipment is provided for the utility model; Figure 3

[0019] A B place enlarged structure schematic view of the low-clearance travelling crane precise positioning equipment is provided for the utility model. Figure 5 Figure 3 In the drawing: 1, guide rail; 2, vehicle body; 3, lifting appliance; 4, accurate device; 41, measuring rod; 42, support; 43, sliding sleeve; 44, collar; 45, soft hair; 46, fixed groove; 47, supporting rod; 48, cylinder; 49, telescopic rod; 410, pointer. DETAILED DESCRIPTION

[0020] Please refer to

[0021] Please refer to Figures 1-5 ​The utility model provides a technical scheme: a low clearance truck precision positioning equipment, including guide rail 1 and accurate device 4, the surface sliding connection of guide rail 1 has the car body 2, the lower surface of car body 2 is provided with the spreader 3, and accurate device 4 sets up in the lower surface of car body 2.

[0022] In the embodiment: accurate device 4 includes support 42, and support 42 is fixedly connected with guide rail 1, and the upper surface of support 42 is fixedly connected with measuring rod 41, and the upper surface of car body 2 is fixedly connected with support rod 47, and the upper surface of support rod 47 is fixedly connected with sliding sleeve 43, and sliding sleeve 43 is sleeved with measuring rod 41, and the surface of sliding sleeve 43 is fixedly connected with pointer 410, by setting accurate device 4, accurately control the moving distance of truck in the process of loading and unloading, can make goods accurately place in the specified position, reduce the collision, damage and other problems caused by position deviation, and the moving state of car body 2 is adjusted in time.

[0023] Specifically, one side of the car body 2 is fixedly connected with a gas cylinder 48, and the driving end of the gas cylinder 48 is fixedly connected with a telescopic rod 49. By setting the telescopic rod 49, when the car body 2 moves to the appropriate distance, the gas cylinder 48 drives the telescopic rod 49 to insert into the fixed slot 46, thereby stably fixing the car body 2 at the current position. In this way, it is ensured that the car body 2 will not move due to external force or other factors during work, providing a stable and reliable foundation for subsequent work and ensuring the safety and stability of the entire working process.

[0024] Specifically, the surface of the guide rail 1 is provided with a plurality of fixed slots 46, and the plurality of fixed slots 46 are arranged in a linear array. By setting the fixed slots 46, an accurate insertion position is provided for the telescopic rod 49. When the car body 2 moves to the appropriate distance, the gas cylinder 48 drives the telescopic rod 49 to insert into the fixed slot 46, ensuring that the car body 2 can be accurately fixed at the predetermined position each time, realizing the precise positioning of the car body 2, and meeting the requirement of position accuracy for work.

[0025] Specifically, the telescopic rod 49 is inserted into the fixed slot 46, and the surface of the measuring rod 41 is provided with a scale. By setting the measuring rod 41, the scale is marked on the measuring rod 41, and cooperates with the pointer 410 to provide an intuitive measurement reference for the operator. When the car body 2 moves, the sliding sleeve 43 moves with it, and the position of the pointer 410 on the measuring rod 41 changes accordingly. The operator can accurately judge the moving distance of the car body 2 by observing the scale corresponding to the pointer 410, thereby realizing accurate control of the position of the car body 2.

[0026] Specifically, one side of the sliding sleeve 43 is fixedly connected with a sleeve ring 44, and the inner wall of the sleeve ring 44 is fixedly connected with soft hair 45.

[0027] In the embodiment, the bristles 45 are driven by the sleeve ring 44, and the measuring rod 41 is cleaned during the pushing of the sleeve ring 44 by the sliding sleeve 43. Since dust, dirt, debris and other impurities may be attached to the surface of the measuring rod 41, these impurities may affect the accurate correspondence between the pointer 410 and the scale, and further affect the judgment of the moving distance of the vehicle body 2 by the operator.

[0028] Specifically, the sleeve ring 44 is sleeved with the measuring rod 41, and the bristles 45 are in contact with the measuring rod 41.

[0029] Specifically, the sleeve ring 44 has two, and the sliding sleeve 43 is arranged in the middle of the sleeve ring 44.

[0030] In the embodiment, the sleeve ring 44 is arranged, the sleeve ring 44 is connected with the sliding sleeve 43 and the bristles 45, when the sliding sleeve 43 moves with the vehicle body 2, the sleeve ring 44 is pushed, the sleeve ring 44 can transmit the power of the sliding sleeve 43 to the bristles 45, so that the bristles 45 can clean the measuring rod 41 with the movement of the vehicle body 2, and the effective transmission of power from the sliding sleeve 43 to the bristles 45 is realized.

[0031] Working principle: when the vehicle body 2 works, the vehicle body 2 moves, and the sliding sleeve 43 moves with the vehicle body 2, and the sliding sleeve 43 pushes the sleeve ring 44 while moving, the sleeve ring 44 drives the bristles 45 to clean the measuring rod 41, and the operator judges the moving distance of the vehicle body 2 through the pointer 410 and the scale of the measuring rod 41, when the vehicle body 2 reaches the appropriate distance, the cylinder 48 drives the telescopic rod 49 to insert into the fixed groove 46 to complete the fixation, by arranging the utility model, the moving distance of the vehicle is accurately determined during the loading and unloading of goods, the goods can be accurately placed in the specified position, the problems such as collision and damage caused by position deviation are reduced, and the moving state of the vehicle body 2 can be adjusted in time.

Claims

1. A low-clearance driving precision positioning device, comprising a guide rail (1) and a precision device (4), characterized in that: The surface of the guide rail (1) is slidably connected with a vehicle body (2), the lower surface of the vehicle body (2) is provided with a lifting appliance (3), the accurate device (4) is arranged on the lower surface of the vehicle body (2), the accurate device (4) comprises a support (42), the support (42) is fixedly connected with the guide rail (1), the upper surface of the support (42) is fixedly connected with a measuring rod (41), the upper surface of the vehicle body (2) is fixedly connected with a supporting rod (47), the upper surface of the supporting rod (47) is fixedly connected with a sliding sleeve (43), the sliding sleeve (43) is sleeved with the measuring rod (41), the surface of the sliding sleeve (43) is fixedly connected with a pointer (410).

2. The low-clearance vehicle positioning device according to claim 1, wherein: One side of the vehicle body (2) is fixedly connected with an air cylinder (48), the driving end of the air cylinder (48) is fixedly connected with a telescopic rod (49).

3. The low-clearance overhead crane precision positioning device according to claim 2, characterized in that: The surface of the guide rail (1) is provided with a fixed groove (46), the fixed groove (46) is provided in plurality, and the plurality of fixed grooves (46) are arranged in linear array.

4. The low-clearance vehicle positioning device of claim 3, wherein: The telescopic rod (49) is inserted into the fixed groove (46), and the surface of the measuring rod (41) is provided with a scale.

5. The low-clearance vehicle positioning device of claim 1, wherein: One side of the sliding sleeve (43) is fixedly connected with a sleeve ring (44), the inner wall of the sleeve ring (44) is fixedly connected with soft hair (45).

6. The low-clearance overhead crane precision positioning device according to claim 5, characterized in that: The sleeve ring (44) is sleeved with the measuring rod (41), and the soft hair (45) is in contact with the measuring rod (41).

7. The low-clearance overhead crane precision positioning device according to claim 6, characterized in that: The sleeve ring (44) has two, and the sliding sleeve (43) is arranged in the middle of the sleeve ring (44).

Citation Information

Patent Citations

  • Driving of super low clearance

    CN207276057U