Auxiliary supporting device for maintenance of small portal crane

By designing a small auxiliary support device for gantry crane maintenance, which uses a motor-driven bidirectional screw and clamping plates to hold the crane's side beam, the problems of instability and insecurity in crane maintenance are solved, and stable and safe support operations are achieved.

CN223722716UActive Publication Date: 2025-12-26SHANGHAI BEIGEN HOISTING ENGINEERING MACHINERY CO LTD
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Patent Information

Application Number
CN202520350129.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2025-12-26
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

When maintaining existing small gantry cranes, relying solely on the brakes of the casters is unstable and unsafe, while using heavy objects to press down on the bottom beam is cumbersome and unsafe.

Method used

A small gantry crane maintenance auxiliary support device was designed. Through a drive mechanism and a lifting mechanism, a motor drives a bidirectional screw and a clamping plate to clamp the side beam of the crane to achieve stable support.

Benefits of technology

It achieves stable support for cranes of different sizes, is easy to operate, and improves safety, solving the problems of instability and insecurity in existing technologies.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a small portal crane maintenance auxiliary supporting device which comprises a track, a driving mechanism is arranged on the track, a moving table is connected to the track in a sliding mode, a lifting mechanism is arranged on the top of the moving table, a mounting base is arranged above the moving table, a first motor is fixedly installed on the side wall of the mounting base, and a second motor is arranged on the side wall of the mounting base. A first two-way screw rod is fixedly mounted at the output end of the first motor, an L-shaped moving plate is in threaded connection with the first two-way screw rod, a clamping plate is integrally formed on the L-shaped moving plate, a first non-slip mat is bonded to the inner wall of the clamping plate, an extension plate is fixedly mounted at the top of the mounting base, and a top plate is fixedly mounted at the end of the extension plate. A second non-slip mat is adhered to the surface of the top plate; the supporting device can support and fix various small portal cranes with different sizes, is more stable in supporting, and is convenient to operate and use.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gantry crane maintenance equipment, and concretely relates to a small -size gantry crane maintenance auxiliary support device. BACKGROUND

[0002] Gantry Crane, also called gantry crane, is a kind of deformation of bridge crane.The metal structure of gantry crane is like a door frame, and two support feet are installed below the carrying girder, which can directly walk on the track on the ground, and the main beam can have an outer cantilever beam, has the characteristics of high site utilization, large operation range, wide adaptability, strong versatility, etc., and is mainly used for the loading and unloading operation of outdoor freight yard, material yard, bulk cargo.The gantry crane has small, medium and large types, and the use of the crane is determined according to the use scene and the weight of the hoisted goods.The advantages of small gantry crane are compact structure, easy disassembly and transportation, and brake universal wheel is installed, so that it has flexible moving ability, is suitable for small warehouse, workshop, maintenance station and other places with high demand for light lifting, and can be operated in the site with limited ground conditions, quickly moves and realizes hoisting task.

[0003] When the small crane is maintained, the brake of the universal wheel is unstable, and the existing staff usually uses a heavy object to press the bottom beam of the small crane, but such a way is troublesome and unsafe, therefore, we improve it and propose a small gantry crane maintenance auxiliary support device. UTILITY MODEL CONTENT

[0004] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical scheme:

[0005] The small gantry crane maintenance auxiliary support device is used to improve the above-mentioned problems.

[0006] The utility model is specifically as follows:

[0007] Including track, be provided with drive mechanism on the track, slidingly connected with mobile station on the track, the mobile station top is provided with lifting mechanism, the mobile station top is provided with mounting seat, the mounting seat side wall is fixedly installed with first motor, the output of first motor is fixedly installed with first bidirectional screw rod, the first bidirectional screw rod is screw threadedly connected with L type moving plate, the L type moving plate is integrally formed with clamping plate, the clamping plate inner wall is bonded with first antiskid pad, the mounting seat top is fixedly installed with extension plate, the extension plate end is fixedly installed with top plate, the top plate surface is bonded with second antiskid pad.

[0008] As the utility model discloses preferred technical scheme, the driving mechanism includes second motor, second bidirectional screw rod, second motor fixed mounting is in the right side wall of track, second bidirectional screw rod fixed mounting is in the output of second motor.

[0009] As the utility model discloses preferred technical scheme, the mobile station bottom fixed mounting has the lug, the lug is with second bidirectional screw rod screw connection, the lug is located in the sliding slot on the track.

[0010] As the utility model discloses preferred technical scheme, the lifting mechanism includes sleeve column, sliding column, the sleeve column fixed mounting is on the mobile station, the sliding column sliding connection is in sleeve column, and the sliding column top is with mounting seat fixed connection, and the sleeve column is provided with locking piece.

[0011] As the utility model discloses preferred technical scheme, the mounting seat fixed mounting has guide rod, and L type moving plate is with guide rod sliding connection.

[0012] As the utility model discloses preferred technical scheme, the left side wall of track is provided with switch group.

[0013] As the utility model discloses preferred technical scheme, the track is opened with through slot.

[0014] Compared with prior art, the utility model has the advantages of:

[0015] In the scheme of the utility model:

[0016] 1. through the sliding column and sleeve column of setting and second motor drive upper structure on the track moves, and first motor drive L type moving plate moves, and L type moving plate moves simultaneously drive clamping plate, make clamping plate clamp the side beam of small door type crane, realize this support device can support and fix to multiple different size small door type crane, and support is more stable, and convenient operation and use, solve the problem that the staff usually uses heavy object and press the bottom beam of small crane in prior art, but such mode is more troublesome, and not safe problem;

[0017] 2. through the track fixed mounting on the ground, realize this support device and support more stable to small door type crane. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic view of the small door type crane maintenance auxiliary support device is provided for the utility model;

[0019] Figure 2 The lug, sliding column and locking piece structure schematic view of the small door type crane maintenance auxiliary support device are provided for the utility model;

[0020] Figure 3 Part structure schematic view of the small portal crane maintenance auxiliary supporting device is provided in the utility model,

[0021] Figure 4 Internal structure schematic view of the mounting seat of the small portal crane maintenance auxiliary supporting device is provided in the utility model,

[0022] Figure 5 L-shaped moving plate, clamping plate and first anti-skid pad structure schematic view of the small portal crane maintenance auxiliary supporting device is provided in the utility model,

[0023] Figure 6 The state schematic view of the small portal crane maintenance auxiliary supporting device when supporting the small portal crane is provided in the utility model.

[0024] Indicated in the drawing:

[0025] 1, track; 2, moving table; 3, mounting seat; 4, first motor; 5, first bidirectional screw; 6, L-shaped moving plate; 7, clamping plate; 8, first anti-skid pad; 9, extension plate; 10, top plate; 11, second anti-skid pad; 12, second motor; 13, second bidirectional screw; 14, protruding block; 15, sleeve column; 16, sliding column; 17, locking piece; 18, guide rod; 19, through slot; 20, switch group. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0027] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0028] It should be noted that the embodiments and the features and technical solutions in the embodiments in the utility model can be combined with each other without conflict.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the utility model, it is necessary to explain that the position or position relation indicated by the terms "upper", "lower" and the like is the position or position relation shown based on the drawing, or the position or position relation of the usual placement when the product of the application is used, or the position or position relation commonly understood by the person skilled in the art, and such terms are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0031] Embodiment:

[0032] As Figures 1-6 shown, the embodiment proposes a small portal crane maintenance auxiliary supporting device, which comprises a track 1, a driving mechanism is arranged on the track 1, the driving mechanism drives a moving table 2 to move, the moving table 2 is slidably connected to the track 1, a lifting mechanism is arranged on the top of the moving table 2, the lifting mechanism is used for adjusting the height of the supporting device; an installation seat 3 is arranged above the moving table 2, the moving table 2 drives the lifting mechanism and the installation seat 3 to move, a first motor 4 is fixedly installed on the side wall of the installation seat 3, a first bidirectional screw rod 5 is fixedly installed at the output end of the first motor 4, the output end of the first motor 4 drives the first bidirectional screw rod 5 to rotate, a L-shaped moving plate 6 is threadedly connected to the first bidirectional screw rod 5, the first bidirectional screw rod 5 drives the two L-shaped moving plates 6 to move inward at the same time, a clamp plate 7 is integrally formed on the L-shaped moving plate 6, the L-shaped moving plate 6 drives the clamp plate 7 to clamp the side beam of the small portal crane, so that the support and fixation of the small portal crane are completed, a first anti-skid pad 8 is bonded to the inner wall of the clamp plate 7, the first anti-skid pad 8 can not only prevent slipping but also protect the side beam; an extension plate 9 is fixedly installed on the top of the installation seat 3, the extension plate 9 moves when the installation seat 3 moves, a top plate 10 is fixedly installed at the end of the extension plate 9, a second anti-skid pad 11 is bonded to the surface of the top plate 10, the second anti-skid pad 11 can not only prevent slipping but also protect the side beam.

[0033] The driving mechanism comprises a second motor 12 and a second bidirectional screw rod 13, the second motor 12 is fixedly installed on the right side wall of the track 1, the second bidirectional screw rod 13 is fixedly installed at the output end of the second motor 12, the second motor 12 drives the second bidirectional screw rod 13 to rotate, a protrusion 14 is fixedly installed at the bottom of the moving table 2, the protrusion 14 is threadedly connected with the second bidirectional screw rod 13, the second bidirectional screw rod 13 drives the protrusion 14 to slide in the sliding groove on the track 1.

[0034] The lifting mechanism comprises a sleeve column 15 and a sliding column 16, the sleeve column 15 is fixedly installed on the moving table 2, the sliding column 16 is slidingly connected in the sleeve column 15, the top of the sliding column 16 is fixedly connected with the mounting seat 3, the mounting seat 3 is lifted upward, the mounting seat 3 drives the sliding column 16 to move upward, the sliding column 16 slides upward in the sleeve column 15, and after being moved to a suitable height, the sliding column 16 is fixed by using the locking piece 17.

[0035] A guide rod 18 is fixedly installed on the mounting seat 3, and the L-shaped moving plate 6 slides along the guide rod 18, and the L-shaped moving plate 6 is slidingly connected with the guide rod 18.

[0036] A switch group 20 is arranged on the left side wall of the track 1, the switch group 20 is electrically connected with the two motors, and the two motors are brake deceleration motors.

[0037] A through slot 19 is formed in the track 1, and the track 1 is installed on the ground by penetrating the through slot 19 on the track 1 with a bolt.

[0038] Specifically, when the small gantry crane maintenance auxiliary supporting device is used, the track 1 is fixedly installed on the ground, the track 1 is installed on the ground by penetrating the through slot 19 on the track 1 with a bolt, the small gantry crane needing to be maintained is moved above the track 1, then the supporting device is adjusted according to the size of the small gantry crane, the height is adjusted first, the mounting seat 3 is lifted upward, the mounting seat 3 drives the sliding column 16 to move upward, the sliding column 16 slides upward in the sleeve column 15, and after being moved to a suitable height, the sliding column 16 is fixed by using the locking piece 17, then the second motor 12 is started, the second motor 12 drives the second bidirectional screw rod 13 to rotate, the second bidirectional screw rod 13 drives the protruding block 14 to slide in the sliding groove on the track 1, the protruding block 14 drives the moving table 2 to move, the moving table 2 drives the lifting mechanism and the mounting seat 3 at the top to move, the mounting seat 3 drives the extension plate 9, the extension plate 9 drives the top plate 10, so that the top plate 10 abuts against the side beam of the small gantry crane, at this time, the two clamping plates 7 are located on the two sides of the side beam of the small gantry crane, then the first motor 4 is started, the output end of the first motor 4 drives the first bidirectional screw rod 5 to rotate, the first bidirectional screw rod 5 drives the two L-shaped moving plates 6 to move inward at the same time, the L-shaped moving plate 6 slides along the guide rod 18, and the L-shaped moving plate 6 drives the clamping plate 7 to move, so that the clamping plate 7 clamps the side beam of the small gantry crane, and the support and fixation of the small gantry crane are completed; the supporting device can support and fix various small gantry cranes of different sizes, the support is more stable, and the operation and use are convenient.

[0039] All the technical features in the embodiment can be freely combined according to actual needs.

[0040] The above embodiment is a preferred implementation scheme of the present application, in addition to this, the present application can be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the present application.

Claims

1. A small portal crane maintenance auxiliary support device comprising a track (1), characterized in that, The track (1) is provided with a driving mechanism, the track (1) is slidably connected with a moving table (2), the top of the moving table (2) is provided with a lifting mechanism, the upper side of the moving table (2) is provided with a mounting seat (3), the side wall of the mounting seat (3) is fixedly installed with a first motor (4), the output end of the first motor (4) is fixedly installed with a first bidirectional screw rod (5), the first bidirectional screw rod (5) is threadedly connected with an L-shaped moving plate (6), the L-shaped moving plate (6) is integrally formed with a clamping plate (7), the inner wall of the clamping plate (7) is bonded with a first anti-skid pad (8), the top of the mounting seat (3) is fixedly installed with an extension plate (9), the end of the extension plate (9) is fixedly installed with a top plate (10), and the surface of the top plate (10) is bonded with a second anti-skid pad (11).

2. A small-sized portal crane maintenance auxiliary support device according to claim 1, characterized in that, The driving mechanism comprises a second motor (12) and a second bidirectional screw rod (13), the second motor (12) is fixedly installed on the right side wall of the track (1), and the second bidirectional screw rod (13) is fixedly installed on the output end of the second motor (12).

3. A small-sized portal crane maintenance auxiliary support device according to claim 2, characterized in that, The bottom of the moving table (2) is fixedly installed with a protruding block (14), the protruding block (14) is threadedly connected with the second bidirectional screw rod (13), and the protruding block (14) is located in a sliding groove on the track (1).

4. A maintenance support device for a small portal crane according to claim 1, characterized in that, The lifting mechanism comprises a sleeve column (15) and a sliding column (16), the sleeve column (15) is fixedly installed on the moving table (2), the sliding column (16) is slidably connected in the sleeve column (15), the top of the sliding column (16) is fixedly connected with the mounting seat (3), and the sleeve column (15) is provided with a locking piece (17).

5. A small-sized portal crane maintenance auxiliary support device according to claim 1, characterized in that, The mounting seat (3) is fixedly installed with a guide rod (18), and the L-shaped moving plate (6) is slidably connected with the guide rod (18).

6. A small-sized portal crane maintenance auxiliary support device according to claim 1, characterized in that, The left side wall of the track (1) is provided with a switch group (20).

7. A small-sized portal crane maintenance auxiliary support device according to claim 1, characterized in that, The track (1) is provided with a through groove (19).