Narrow space equipment transfer device

Abstract

The utility model provides a narrow space equipment transfer device. The device comprises a trolley with a transfer platform and a running mechanism, and the technical problem of equipment transfer in a narrow space is solved through movement of the trolley on a rail. As the trolley is located on the track through the idler wheels, trolley movement is achieved, multiple sets of trolleys can be used in cooperation, the trolley is suitable for transferring to-be-transferred equipment of different sizes and different weights, manpower and material resources are saved, transferring efficiency can be improved, and the application range is wide; as the supporting plate extends to cover part of the track, the trolley is prevented from shaking in the transfer process to enable the equipment to be separated from the track, the operation precision and the operation safety are improved, and the installation precision of the equipment to be transferred is guaranteed; the device is simple in structure, convenient to use, flexible to mount, wide in application range and high in adaptability, can be used in a single or multi-group matching manner, improves the operation efficiency, shortens the construction period, and is suitable for being used as a narrow space equipment transfer device.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding engineering technology, specifically to a device for transferring equipment in confined spaces. Background Technology

[0002] Large steel structure projects often require the installation of various functional equipment to meet the overall functional requirements of the steel structure. Simultaneously, due to the strength requirements of the steel structure itself, sufficient supporting structures need to be installed internally, resulting in numerous confined spaces within the steel structure. These confined spaces make it difficult to move equipment from the outside of the steel structure to its installation location during installation and construction.

[0003] Currently, the main method for transferring equipment inside steel structures is to use multiple hand-operated hoists for lifting, and then adjust the chain lengths of the different hoists to achieve the transfer of the equipment. This method has the following limitations:

[0004] 1. The top of the passageway required for the transfer equipment must allow for the welding of temporary lifting lugs or have a supporting structure that can accommodate the installation of temporary lifting lugs.

[0005] 2. Sufficient space must be provided between the passageway and the top structure of the transfer equipment to accommodate the length and adjustment requirements of the hand chain hoist chain.

[0006] 3. The operation is cumbersome, requiring multiple adjustments to the hoisting, which affects work efficiency.

[0007] 4. Improper operation can easily cause the equipment to detach, which can affect the precision of functional equipment and, in severe cases, damage the functional equipment.

[0008] 5. Due to the complex construction environment, gaps or foreign objects may easily form between the friction plate and ratchet of the hand chain hoist, causing the brake to fail to work.

[0009] 6. The inherent structural difficulties or inflexibility of manual chain hoists necessitate repeated adjustments, impacting operational efficiency.

[0010] If a transfer device other than a hand chain hoist is used, new transfer devices need to be designed and manufactured repeatedly for different working conditions. This results in high investment costs, complex operation, poor adaptability, and numerous but impractical functions that do not provide much help for actual operations. Summary of the Invention

[0011] Therefore, providing a transfer device that is highly applicable, easy to operate, simple to use, and suitable for confined spaces has become an urgent technical problem to be solved.

[0012] Based on this, the present invention provides a device for transferring equipment in confined spaces. The device includes a trolley with a transfer platform and a running mechanism, which moves on a track, thus solving the technical problem of transferring equipment in confined spaces.

[0013] The solution adopted by this utility model to solve the technical problem is:

[0014] A device for transferring equipment in a confined space, comprising a trolley and a track.

[0015] The system includes a trolley transfer platform and an operating mechanism. The transfer platform is an upper plate with a continuous and complete plane on its upper surface, providing a stable support plane for the equipment to be transferred during operation. The upper plate is connected to the operating mechanism through support plates. To ensure the stability of the trolley transfer, two support plates are provided, spaced apart at the bottom of the upper plate, for the operating mechanism to install.

[0016] The running mechanism includes a roller, which consists of a roller body, a bearing bushing with clearance fit inside the roller, a roller shaft inserted through the bearing bushing, and a pin nut for limiting the roller wheel to achieve the rolling operation of the trolley; a pin washer is also provided on the side where the bearing bushing and the pin nut meet.

[0017] The rollers connect to the support plate, allowing the trolley to sit on the track.

[0018] To prevent the trolley from derailing, the support plate extends downward to cover the rollers, limiting the trolley's swaying range.

[0019] To facilitate the coordination of multiple trolleys, a towing sleeve is provided in front of the trolley in the direction of travel. The towing sleeve is a hollow cylindrical structure.

[0020] The positive effects are as follows: This invention utilizes rollers positioned on a track to move the trolley, and multiple trolleys can be used in conjunction, making it suitable for transporting equipment of different sizes and weights without requiring specialized equipment, saving manpower and resources. This invention is applicable to work scenarios where manual hoists cannot be installed, or can be used alone without a manual hoist, reducing hoist installation time and the time required to install lifting lugs, thus improving transport efficiency and having a wide range of applications. Because the support plate extends to cover part of the track, it can limit the trolley's movement, preventing it from swaying during transport and causing the equipment to derail, improving operational accuracy and safety, and ensuring the precise installation of the equipment to be transported. This invention has a simple structure, is easy to use, and flexible in installation. It can be used individually or in multiple groups, has a wide range of applications, and strong adaptability. As long as a track can be laid, this device can be used, meeting the transport requirements of equipment of different sizes and weights, improving work efficiency, and shortening the construction cycle. It is suitable for use as a transport device for equipment in confined spaces.

[0021] This utility model is particularly suitable for work scenarios where the internal space of a steel structure has limited height, making it impossible to meet the height requirements for installing a chain hoist, or where the top space cannot be welded due to the structure or the application scenario of the steel structure itself, or where there are many obstacles that prevent the installation of temporary lifting lugs, thus rendering the chain hoist unusable. This utility model can meet the needs of equipment installation and transportation without the need to design additional installation processes, procedures, or use special equipment to transport the equipment to be transported, which can significantly reduce the difficulty of construction and increase the convenience of construction operations.

[0022] This utility model can provide convenience for equipment installation by using a combination of single or multiple track trolleys according to the equipment weight, size or installation requirements, with a wider range of options and greater adaptability.

[0023] Furthermore, this utility model is compatible with the hand chain hoist transfer method. For large equipment, the combination of hand chain hoist and this utility model can be used to share the weight of the equipment, enabling the equipment to be transferred in a narrow space, reducing transfer requirements and construction difficulty.

[0024] This invention offers higher transfer efficiency than using a hand chain hoist. Because the transfer equipment runs on a track, it reduces the vertical swaying that occurs during the hand chain hoist transfer process, allowing the equipment to be transported to the installation location more quickly.

[0025] This utility model mainly occupies the lower space of the equipment, avoiding the technical problems of difficulty in transporting the equipment due to the inability to install lifting lugs at the top or the inability to install a hand chain hoist due to height restrictions.

[0026] This utility model has a simple and lightweight structure, making it easy to assemble in confined spaces. It can also adjust the track and the number of track trolleys according to the size and weight of the equipment, and can transport equipment of various specifications, making it highly adaptable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structural assembly of this utility model;

[0028] Figure 2 This is an exploded view of the structure of this utility model;

[0029] Figure 3 This is a top view of the present invention;

[0030] Figure 4 This is a bottom view of the present invention;

[0031] Figure 5 This is a cross-sectional view (AA) of the present invention;

[0032] Figure 6 This is a schematic diagram of the trolley rollers of this utility model;

[0033] Figure 7 This is a schematic diagram of the trolley bearing bushing of this utility model;

[0034] Figure 8 This is a schematic diagram of the trolley roller shaft of this utility model;

[0035] Figure 9 This is a side view of an embodiment of the present utility model;

[0036] Figure 10 This is a top view of an embodiment of the present utility model.

[0037] In the diagram, 1. Upper plate, 2. Support plate, 3. Elbow plate, 4. Dragging sleeve, 5. Roller, 6. Bearing bushing, 7. Roller shaft, 8. Pin washer, 9. Pin nut, 11. Connecting steel pipe, 12. Eye plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this utility model, all embodiments, implementation methods, and features can be combined with each other without contradiction or conflict. In this utility model, conventional equipment, devices, and components can be commercially available or self-made based on the disclosure of this utility model. In this utility model, to highlight the key points, some conventional operations and equipment, devices, and components are omitted or only briefly described.

[0041] See Figures 1 to 10 A device for transferring equipment in a confined space, comprising a trolley and a track.

[0042] The trolley includes a transfer platform and a running mechanism. The transfer platform is an upper plate 1 with a continuous and complete plane on its upper surface, which provides a stable support plane for the equipment to be transferred during operation. The upper plate 1 is connected to the running mechanism through support plates 2. To ensure the stability of the trolley transfer, there are two support plates 2, which are spaced apart at the bottom of the upper plate 1 for the running mechanism to install.

[0043] As a conventional technical choice, the support plates 2 are spaced apart by a distance greater than the track width.

[0044] The running mechanism includes a roller 5, which consists of a roller 5 body, a bearing bushing 6 with clearance fit inside the roller 5, a roller shaft 7 that is inserted through the bearing bushing 6, and a pin nut 9 for limiting the roller 7, so as to realize the rolling operation of the trolley; a pin washer 8 is also provided on the side of the bearing bushing 6 that contacts the pin nut 9 to avoid wear on the bearing bushing 6 during operation.

[0045] The rollers 5 are installed between the support plates 2 and sit on the track.

[0046] Furthermore, to accommodate the combined use of multiple trolleys for transporting larger or heavier equipment, the outer side of the support plate 2 and the lower part of the upper plate 1 are reinforced and supported by an elbow plate 3 perpendicular to the support plate 2.

[0047] As one might expect, the support plate 2 has holes for the rollers 5 to be installed.

[0048] To prevent the trolley from derailing, the support plate 2 extends downward to cover the roller 5, limiting the trolley's swaying amplitude. When the trolley sways left and right, the lower edge of the support plate 2 contacts the track, fixing the trolley's left and right swaying angle and preventing the trolley from derailing during transport.

[0049] To facilitate the coordination of multiple trolleys, a towing sleeve 4 is provided in front of the trolleys in the direction of travel. The towing sleeve 4 is a hollow cylindrical structure. When used alone, the trolley can be pulled by steel cables, traction devices, etc., installed inside the towing sleeve 4. Alternatively, when used in combination, the hollow part is for connecting steel pipes 11 to be inserted. The connecting steel pipes 11 are preferably seamless steel pipes. For easy towing, an eye plate 12 with through holes is fixedly connected to the forward direction of the connecting steel pipe 11. One or more eye plates 12 can be provided depending on the size of the equipment to be transferred. In use, steel cables, traction devices, etc., installed in the through holes of the eye plates 12 can be used to drive the steel cables or traction devices to pull the trolley, thereby transferring the equipment to be transferred.

[0050] To be suitable for saline-alkali working environments, the upper plate 1, support plate 2, and elbow plate 3 are made of Q235B steel, the drag sleeve 4, roller 5, roller shaft 7, and pin washer 8 are made of 45# steel, and the bearing bushing 6 is preferably made of QSn6.5-0.1 copper.

[0051] Work process:

[0052] A. Determine the required number of tracks and trolleys based on the specific dimensions and weight of the equipment to be transferred.

[0053] B. Determine the specific location for track laying based on the installation location of the equipment to be transferred and the opening location of the structural platform where the equipment will be installed, and install temporary support structures according to the surrounding structure and equipment installation conditions.

[0054] C. Lay trolleys on the track and use connecting steel pipes to weld the trolleys on the same side together.

[0055] D. Place the equipment to be transferred onto the trolley through the opening of the structural platform, and ensure that the equipment is in close contact with the trolley.

[0056] E. Using a traction device, the equipment to be transferred is moved and transported to the equipment installation location by a trolley. Example

[0057] 1. Confirm the number of track trolleys:

[0058] In this embodiment, to achieve a certain engineering purpose, it is necessary to install a 3300×2500×2300 piece of equipment weighing 1.9t in the corner of a steel structure. Since the top of the equipment to be transferred is about 100mm away from the structural platform during the transfer process, conventional transfer methods cannot transport the equipment to the base where it is installed. In order to facilitate the movement of the equipment, eight trolleys are arranged under the equipment, each trolley bearing about 250kg of equipment weight.

[0059] 2. Track and temporary support structure:

[0060] Due to space constraints between the equipment mounting base and the structural platform, the rails are positioned on the upper part of the equipment mounting base panel, with the lower edge of the rails approximately 50mm from the upper edge of the equipment base. The rails extend from the upper part of the equipment mounting base to below the structural opening. The straightness of the upper surface of the rails is ≤3mm / 1m, and the height deviation of the four rails at the same position is ≤3mm. The horizontal straightness of the rails is ≤3mm / 1m, and the distance between any two rails at the same position is ≤4mm. Sufficient temporary supports are added below the rails, using angle steel L75×75×8 or angle steel, channel steel, I-beams, etc., with greater strength. The spacing of temporary supports is 1m to 1.5m, and the specific dimensions are adjusted according to the actual site conditions. The temporary supports are connected to the rails by welding.

[0061] 3. Connect the track trolley:

[0062] Seamless steel pipes (GB / T 8163-2008) are used to connect the trolleys on the same side into a whole through a drag sleeve, and eye plates are installed at the center position of the connecting steel pipe in the front direction of movement and at the left and right symmetrical positions.

[0063] 4. Hoist the equipment to the track trolley:

[0064] At the structural opening, the equipment to be transferred is hoisted onto the trolley and placed on it. Construction personnel must check the contact between each trolley and the equipment to be transferred, ensuring that the upper surface of each trolley is in full contact with the equipment's feet. If the gap is too large, adjusting shims can be added between the equipment's feet and the track trolley.

[0065] 5. Use a traction device to move the equipment:

[0066] Due to the large weight of the transfer equipment in this example, a hand-operated hoist is selected as the traction device, working in conjunction with the trolley for equipment transfer. If the equipment is smaller, it can be pushed manually. A 10t hand-operated hoist is connected to the central eyeplate of the trolley transfer device via wire ropes and shackles, and 2t hand-operated hoists are connected to the eyeplates on both sides via wire ropes and shackles. By pulling the 10t hand-operated hoist, the equipment to be transferred is moved horizontally along the track. The two 2t hand-operated hoists keep the wire ropes taut, but do not need to be subjected to excessive force. Only when the equipment deviates is the corresponding 2t hand-operated hoist adjusted to return the equipment to its normal position.

[0067] This invention effectively improves the transportation efficiency of equipment in confined spaces, thus avoiding the inability to move equipment due to insufficient space and the resulting increase in construction difficulty. The invention features a simple and lightweight structure, flexible installation, and the number of tracks and trolleys can be adjusted according to the weight and size of the equipment to meet transportation requirements. Furthermore, the track installation is flexible, allowing for adjustments to the track installation position and form based on actual site conditions.

[0068] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for transferring equipment in a confined space, comprising a trolley and a track, characterized in that, The trolley includes a transfer platform and a running mechanism. The transfer platform is an upper plate (1), and the upper surface of the upper plate (1) has a continuous and complete plane. The upper plate (1) is connected to the running mechanism through a support plate (2). The running mechanism includes a roller (5), which consists of a roller body, a bearing bushing (6) with clearance fit inside the roller (5), a roller shaft (7) inserted through the bearing bushing (6), and a pin nut (9) for limiting the roller (7), thereby enabling the trolley to roll. The roller (5) is connected to the support plate (2) and sits on the track.

2. The equipment transfer device in a confined space according to claim 1, characterized in that, The support plate (2) is provided in two parts, with a spacing greater than the track width, and is located at the lower part of the upper plate (1) for the running mechanism to be installed.

3. The equipment transfer device in a confined space according to claim 1, characterized in that, A pin washer (8) is also provided on the side where the bearing bush (6) and the pin nut (9) meet.

4. The equipment transfer device in a confined space according to claim 1, characterized in that, The support plate (2) extends downward to cover the roller (5) and limits the swaying amplitude of the trolley.

5. The equipment transfer device in a confined space according to claim 1, characterized in that, The outer side of the support plate (2) and the lower part of the upper plate (1) are reinforced by an elbow plate (3) perpendicular to the support plate (2).

6. The equipment transfer device in a confined space according to claim 1, characterized in that, A towing sleeve (4) is provided in front of the trolley in the direction of travel. The towing sleeve (4) is a hollow cylindrical structure.

7. A confined space equipment transfer device according to claim 6, characterized in that, The hollow part of the drag sleeve (4) is for the connection steel pipe (11) to be inserted, and the connecting steel pipe (11) is also fixedly connected to an eye plate (12) with a through hole in the forward direction.

8. A confined space equipment transfer device according to claim 7, characterized in that, The upper plate (1), support plate (2), and elbow plate (3) are made of Q235B steel, the drag sleeve (4), roller (5), roller shaft (7), and pin washer (8) are made of 45# steel, and the bearing bushing (6) is preferably made of QSn6.5-0.1 copper.

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