Movable gantry lifting frame

Abstract

The utility model relates to a movable gantry hoisting frame, including crossbeam, sling support and two bases, the crossbeam is fixedly connected with the downward extending upper support column, the sling support is hung with the hoist device, the bottom of base is equipped with at least two along left and right direction arrangement's walking wheel, the top of base is fixed with the upward extending lower support column, the lower support column is equipped with the jack plug of adapting with the upper support column in, and is equipped with the positioning pin of along the transverse through upper support column on the lower support column, and the upper support column and lower support column are respectively set up with a plurality of along the vertical distribution and with the positioning hole of adapting with the positioning pin, the utility model discloses through setting up the base with universal wheel, realized the integral movement of hoisting frame, through the setting of upper support column and lower support column, realized the adjustment of installation height and hoisting height, and the crossbeam, upper support column, lower support column, base and strengthening beam are set up as detachable connection, can realize the assembly to transformer in the indoor and semi-indoor place.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to gantry crane equipment, specifically a movable gantry crane frame. Background Technology

[0002] Transformers are fundamental equipment for power transmission and distribution, widely used in various industries and locations, including indoor, outdoor, and semi-indoor environments. Because transformers include components such as the core, windings, and transformer tank, they are typically large and heavy, especially components like radiators, coolers, and 110kV and above bushings. These components cannot be installed manually and require lifting equipment.

[0003] However, in indoor or semi-indoor locations, due to space and factory limitations, large-volume lifting tools such as cranes and overhead cranes cannot be used. Moreover, overhead cranes require special tracks to operate, which makes it impossible to install some large and heavy components used on transformers. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a movable gantry crane frame, which can be used in indoor or semi-indoor locations. It solves the problem of difficulty in installing large components and equipment when cranes or overhead cranes cannot be used in the transformer room.

[0005] This utility model is achieved through the following technical solution: a movable gantry crane frame is provided, including a crossbeam, a sling bracket sliding on the crossbeam, and two bases located below the crossbeam. The front and rear ends of the crossbeam are respectively fixed with downwardly extending upper support columns, and a lifting device is suspended on the sling bracket. At least two traveling wheels arranged in the left-right direction are installed at the bottom of the base, and an upwardly extending lower support column is fixed at the top of the base. The lower support column has a hole adapted to the upper support column, and a positioning pin passing through the upper support column laterally is provided on the lower support column. Several positioning holes distributed vertically and adapted to the positioning pin are respectively opened on the upper and lower support columns.

[0006] This solution enables the overall movement of the hoisting frame by installing a base with traveling wheels. The upper and lower support columns allow for adjustable lifting height. The hoisting device lifts heavy objects, and the sling support can move back and forth along the crossbeam, making it suitable for indoor or semi-indoor transformer installation.

[0007] As an optimization, the base includes a support beam supporting the lower support column, and reinforcing beams fixed to the lower support column and the support beam at its upper and lower ends, respectively. The axis of the support beam extends in the left-right direction, and a mounting plate for mounting the traveling wheels is fixed to the bottom surface of the support beam. This optimized base structure is simple and has low manufacturing cost. Furthermore, the reinforcing beams ensure structural strength, the mounting plate facilitates the installation of the traveling wheels, and the left-right extension of the support beam improves the overall stability of the lifting frame.

[0008] As an optimization, reinforcing beams are provided on both the left and right sides of the lower support column. The reinforcing beams are inclined and extend upwards towards the lower support column. Upper connecting plates are fixedly connected to the lower ends of the reinforcing beams and the lower support column, respectively. Lower connecting plates, supporting each upper connecting plate, are fixedly connected to the top surface of the support beams. The lower connecting plates are bolted to the upper connecting plates they support. An outer connecting plate is fixedly connected to the upper end of the reinforcing beams. Inner connecting plates, opposite to the outer connecting plates, are fixedly connected to the left and right sides of the lower support column, respectively. The outer connecting plate and the inner connecting plate on the same side of the lower support column are bolted together. This optimized design allows the reinforcing beams, support beams, and lower support column to be disassembled, making installation and transportation very convenient. It also facilitates indoor assembly and solves the problem of insufficient door height preventing lifting equipment from entering the room.

[0009] As an optimization, the mounting plate is equipped with four rectangularly distributed casters. This optimization, by placing four casters on the mounting plate of each base, further ensures the stability of the overall movement of the hoisting frame. Using casters makes the overall movement of the hoisting frame more flexible and better adaptable to indoor spaces.

[0010] As an optimization, the sling support includes two upright plates located on the left and right sides of the crossbeam, and a base plate located below the upright plates and fixedly connected to the two upright plates. A suspension plate is fixedly connected to the bottom surface of the base plate, and the suspension plate has lifting holes adapted to the installation hooks of the lifting device. It also includes a lifting shaft that passes laterally through the two upright plates and is supported on the crossbeam. In this optimized scheme, the sling support is supported on the crossbeam by the lifting shaft. The crossbeam serves both as support and as a guide for the movement of the sling support. The two upright plates prevent the sling support from falling off the crossbeam, and the lifting holes facilitate the installation of the lifting device.

[0011] As an optimization, rollers are installed on the lifting shaft, located between the two uprights and supported on the top surface of the crossbeam. The distance between the two uprights is adapted to the width of the crossbeam in the left-right direction. This optimization reduces the frictional resistance of the sling support when moving on the crossbeam by setting rollers, making it easier to move heavy objects back and forth.

[0012] As an optimization, connecting plates I are fixed to the bottom surfaces of the front and rear ends of the crossbeam, and connecting plates II are fixed to the upper ends of the two upper support columns. Connecting plates I and the connecting plates II located below them are connected by bolts. This optimized design allows the crossbeam and upper support columns to be detachable, further facilitating the transportation and installation of the hoisting frame.

[0013] As an optimization, the lifting device is a hand-operated chain hoist, with its hook suspended from a sling bracket. This optimized solution uses a hand-operated chain hoist as the lifting device, which is simple to operate, requires no electricity, and is applicable to more locations.

[0014] The beneficial effects of this utility model are as follows: by setting a base with casters, the overall movement of the hoisting frame is realized; by setting an upper support column and a lower support column, the installation height and lifting height can be adjusted; and the crossbeam, upper support column, lower support column, base and reinforcing beam are set to be detachably connected, which can realize the assembly of transformers in indoor and semi-indoor locations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a schematic diagram of the sling support structure;

[0018] Figure 4 This is a schematic diagram of the base structure;

[0019] Figure 5 This is a side view of the base;

[0020] As shown in the figure:

[0021] 1. Crossbeam, 2. Sling bracket, 3. Upper support column, 4. Lower support column, 5. Base, 6. Lifting device, 7. Positioning pin, 8. Lifting shaft, 9. Vertical plate, 10. Suspension plate, 11. Base plate, 12. Reinforcing beam, 13. Support beam, 14. Mounting plate, 15. Traveling wheel, 16. Inner connecting plate, 17. Outer connecting plate, 18. Upper connecting plate, 19. Lower connecting plate. Detailed Implementation

[0022] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0023] like Figure 1 and 2The diagram illustrates a movable gantry crane, comprising a crossbeam 1, a sling support 2 slidably mounted on the crossbeam, and two bases 5 located below the crossbeam. The front and rear ends of the crossbeam are respectively fixed with downwardly extending upper support columns 3. A lifting device 6 is suspended from the sling support. The lifting device is used to lift heavy objects and can employ existing technology. In this embodiment, the lifting device 6 is a hand-operated hoist, with its hook suspended from the sling support.

[0024] The base is equipped with at least two casters 15 arranged in a left-right direction. In this embodiment, each base is equipped with four casters to improve stability. The casters 15 are omnidirectional wheels, which improves the overall flexibility of the lifting frame's movement.

[0025] A lower support column 4 extending upwards is fixed to the top of the base. The lower support column 4 is coaxial with the upper support column 3. The lower support column 4 has a corresponding insertion hole that matches the upper support column 3. The insertion hole extends downwards from the upper surface of the lower support column. The upper support column is inserted downwards into the insertion hole of the lower support column, and can slide up and down within the insertion hole to adjust its height. A positioning pin 7 passes horizontally through the upper support column and is mounted on the lower support column. Several vertically distributed positioning holes that match the positioning pin are respectively provided on both the upper and lower support columns. After adjusting the height, the positioning pin is inserted to fix the height of the upper support column, preventing changes in its height.

[0026] The base 5 includes a support beam 13 supporting the lower support column, and reinforcing beams 12 fixed to the lower support column and the support beam at its upper and lower ends, respectively. The axis of the support beam 13 extends in the left-right direction. A mounting plate 14 for mounting the traveling wheels 15 is fixed to the bottom surface of the support beam 13. Four traveling wheels 15 arranged in a rectangular pattern are mounted on the bottom surface of the mounting plate 14. In this embodiment, reinforcing beams 12 are provided on both the left and right sides of the lower support column 4. The reinforcing beams 12 are inclined and extend towards the lower support column at their upper ends. Upper connecting plates 18 are fixed to the lower ends of the reinforcing beams and the lower ends of the lower support column, respectively. Lower connecting plates 19 supporting each upper connecting plate 18 are fixed to the top surface of the support beam 13. The lower connecting plates 19 are connected to the upper connecting plates 18 they support by bolts.

[0027] An outer connecting plate 17 is fixedly connected to the upper end of the reinforcing beam 12. An inner connecting plate 16 opposite to the outer connecting plate 17 is fixedly connected to the left and right sides of the lower support column. The outer connecting plate and the inner connecting plate located on the same side of the lower support column are connected by bolts, which realizes the detachability between the reinforcing beam and the lower support column.

[0028] Connecting plate I is fixed to the bottom surface of the front and rear ends of the crossbeam, and connecting plate II is fixed to the upper end of the two upper support columns. Connecting plate I and connecting plate II located below it are connected by bolts, which realizes the detachable connection between the crossbeam and the upper support columns.

[0029] The sling bracket 2 in this embodiment includes two upright plates 9 located on the left and right sides of the crossbeam, and a base plate 11 located below the upright plates 9 and fixedly connected to the two upright plates. A suspension plate 10 is fixedly connected to the bottom surface of the base plate 11, and a lifting hole adapted to the installation hook of the lifting device is provided on the suspension plate 10.

[0030] The sling support in this embodiment also includes a sling shaft 8 that passes through the two vertical plates laterally and is supported on the crossbeam 1. The sling shaft 8 is equipped with rollers located between the two vertical plates 9 and supported on the top surface of the crossbeam, which reduces the resistance when the sling support moves. The distance between the two vertical plates is adapted to the width of the crossbeam in the left and right direction, which can better enable the sling support to move along the crossbeam and avoid falling or tilting.

[0031] In this embodiment, the upper support column, lower support column, and support beam are all made of square tubing, the reinforcing beam is made of channel steel, and the crossbeam is made of I-beams, making the fabrication of this hoisting frame more convenient.

[0032] The following is an embodiment of the installation and use method of the movable gantry crane:

[0033] 1. Secure the two lower support columns to the two bases with bolts, and then secure the four reinforcing beams to the two lower support columns and the bases with bolts. Simultaneously, install the eight casters on the two bases.

[0034] 2. Install the sling bracket on the crossbeam, and connect it to the crossbeam using the lifting shaft.

[0035] The hook of the hand chain hoist is hung in the hanging hole of the suspension plate.

[0036] 3. After adjusting the height of the upper support column according to the height of the transformer and the hoisted accessories,

[0037] Insert the positioning pin and fix it in place.

[0038] 4. Finally, level the upper and lower support columns and fix the crossbeam to the two supports with bolts.

[0039] On the upper support column.

[0040] 5. After installation, slowly erect the gantry frame formed by the crossbeams and upper and lower support columns.

[0041] Move the gantry crane to the location of the accessory to be hoisted, securely connect the hoist's sling to the accessory, and then move the gantry crane to the transformer accessory installation location for installation.

[0042] The movable gantry crane in this embodiment can be operated without being restricted by the site environment.

[0043] It's simple. Just move the hoisting frame to the transformer accessory to be installed, use a pull hoist to lift the accessory, and then move the entire accessory to the transformer accessory installation location for installation.

[0044] This design reduces the number of operators and their workload. Large, heavy attachments can be installed using this lifting frame, saving time and effort. Furthermore, since the handling and installation of the lifting frame and attachments are under control, the risk of parts tilting and falling during installation is reduced, increasing the safety factor of the installation operation. In this embodiment, the lifting frame's crossbeams, support columns, reinforcing beams, and base are all detachable, making installation and transport more convenient.

[0045] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A movable gantry crane, characterized in that: It includes a crossbeam (1), a sling bracket (2) slidably mounted on the crossbeam, and two bases (5) located below the crossbeam. The front and rear ends of the crossbeam are respectively fixed with downwardly extending upper support columns (3), and a lifting device (6) is suspended on the sling bracket. The base is equipped with at least two wheels (15) arranged in the left and right directions at the bottom. The base is fixed with an upwardly extending lower support column (4). The lower support column (4) is provided with a hole that matches the upper support column (3). A positioning pin (7) that passes through the upper support column in the horizontal direction is provided on the lower support column. Several positioning holes that are distributed vertically and match the positioning pin are respectively opened on the upper support column and the lower support column.

2. The movable gantry crane frame according to claim 1, characterized in that: The base (5) includes a support beam (13) that supports the lower support column, and a reinforcing beam (12) that is fixed to the lower support column and the support beam at the upper and lower ends respectively. The axis of the support beam (13) extends in the left and right direction, and the bottom surface of the support beam (13) is fixed with an mounting plate (14) for mounting the walking wheel (15).

3. The movable gantry crane frame according to claim 2, characterized in that: The lower support column (4) is provided with reinforcing beams (12) on both the left and right sides. The reinforcing beams (12) are inclined and extend towards the lower support column. The lower end of the reinforcing beam and the lower end of the lower support column are respectively fixed with upper connecting plates (18). The top surface of the support beam (13) is fixed with lower connecting plates (19) that support each upper connecting plate (18). The lower connecting plates (19) and the upper connecting plates (18) they support are connected by bolts. An outer connecting plate (17) is fixed to the upper end of the reinforcing beam (12), and an inner connecting plate (16) opposite to the outer connecting plate (17) is fixed to the left and right sides of the lower support column. The outer connecting plate and the inner connecting plate located on the same side of the lower support column are connected by bolts.

4. The movable gantry crane according to claim 2, characterized in that: The mounting plate (14) is equipped with four rectangularly distributed wheels (15), and the wheels (15) are omnidirectional wheels.

5. The movable gantry crane according to claim 1, characterized in that: The sling support (2) includes two vertical plates (9) located on the left and right sides of the crossbeam respectively, and a base plate (11) located below the vertical plates (9) and fixed to the two vertical plates. A suspension plate (10) is fixed to the bottom surface of the base plate (11), and a lifting hole adapted to the installation hook of the lifting device is provided on the suspension plate (10). It also includes a hanging shaft (8) that passes through the two uprights laterally and is supported on the crossbeam (1).

6. The movable gantry crane according to claim 5, characterized in that: The hanging shaft (8) is equipped with rollers located between the two upright plates (9) and supported on the top surface of the crossbeam. The distance between the two upright plates is adapted to the width of the crossbeam in the left and right directions.

7. The movable gantry crane according to claim 1, characterized in that: Connecting plate I is fixed to the bottom surface of the front and rear ends of the crossbeam, and connecting plate II is fixed to the upper end of the two upper support columns. Connecting plate I and connecting plate II located below it are connected by bolts.

8. The movable gantry crane according to claim 1, characterized in that: The lifting device (6) is a hand chain hoist, and the installation hook of the hand chain hoist is suspended on the sling bracket.

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