Auxiliary lifting and moving device for maintenance in narrow and small space and using method

Abstract

The invention discloses an auxiliary lifting and moving device for maintenance in a narrow space and a using method, and belongs to the technical field of equipment maintenance in a natural gas treatment plant. An electric driving unit is adopted to control movement of a movable base station so that the movable base station can automatically enter an operation position, and meanwhile the electric driving unit is adopted to control ascending and descending of a lifting supporting unit; a heavy object can be supported at an operation position, and a heavy object below 100KG can be supported during overhaul, so that the labor intensity of inspection and maintenance personnel is greatly reduced, and the overhaul work is ensured to be easy and convenient; and meanwhile, convenience is provided for conveying articles in a narrow space, and dependence on machines and tools is reduced. When the conditions that heavy objects cannot be moved and machines and tools are inconvenient to use occur in the overhaul process, the equipment can help maintainers to lift and carry the heavy objects and assist in completing the overhaul task, so that the maintainers can efficiently complete the overhaul task in a time-saving and labor-saving mode. The method is efficient, fast, safe and reliable, and provides a technical support for modern management and safe operation and maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of equipment maintenance in natural gas treatment plants, and particularly relates to a maintenance auxiliary lifting and moving device for narrow spaces and a using method thereof. Background Art

[0002] During the maintenance of the axial flow fan for lubricating oil cooling of a turbine compressor at a certain treatment station, due to the narrow space, personnel could not enter, and the disassembly and maintenance were very difficult. The fan was too large to be taken out, resulting in the obstruction of the planned maintenance work.

[0003] The prior art uses a conventional handling trolley to solve the above problems. The handling trolley needs to be manually controlled to move. In a narrow space where personnel cannot enter, the handling trolley cannot enter the working environment for handling. The operation is cumbersome and inflexible. It can only handle, cannot well support heavy objects, cannot complete the work well, has a low degree of automation, and a low safety factor, and cannot meet the requirements of intelligent and automated production management. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a maintenance auxiliary lifting and moving device for narrow spaces and a using method thereof, so as to solve the technical problems that the handling trolley in the prior art cannot enter the narrow space for handling and cannot support heavy objects.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A maintenance auxiliary lifting and moving device for narrow spaces includes a moving base and a lifting support unit. The lifting support unit is arranged on the moving base, and the moving base and the lifting support unit are respectively connected to an electric drive unit to realize movement and lifting.

[0007] Preferably, the lifting support unit includes a plurality of lifting brackets and electric telescopic push rods; the lifting brackets and the electric telescopic push rods are arranged around the moving base and the middle position of the moving base is hollow. Among them, one end of the electric telescopic push rod is fixed on the moving base, and the other end is connected to one side of the bottom of the lifting bracket. The electric telescopic push rod is electrically connected to the electric drive unit. The other side of the bottom of the lifting bracket is fixed on the moving base, and a fixed tray is arranged at the top of the lifting support unit.

[0008] Preferably, the lifting bracket is composed of a plurality of connecting rods hinged to form a telescopic structure. At the ends of the two bottom connecting rods, one is connected to the electric telescopic push rod, and the other is fixedly connected to the moving base. A magnetic head is fixed at the intersection of the two top connecting rods, and the fixed tray is fixed on the magnetic head.

[0009] Preferably, a storage box is located at the middle position inside the mobile base station. Sliding grooves are provided around the storage box, and the lifting support unit is arranged inside the sliding grooves. A cross beam for installing rollers is provided at the bottom of the mobile base station, and telescopic support columns are provided around the bottom of the mobile base station. Both the rollers and the telescopic support columns are connected to the electric drive unit.

[0010] Preferably, the electric drive unit includes: a DC battery and a motor. The motor is arranged at the bottom of the mobile base station and is electrically connected to the rollers. The DC battery is connected to the telescopic support columns, the lifting support unit, and the motor to provide power.

[0011] Preferably, a speed change gear set is arranged inside the rollers. The power shaft of the rollers is connected to the output end of the speed change gear set, and the speed change gear set is connected to the electric drive unit.

[0012] Preferably, a top plate is further arranged inside the mobile base station for closing the top with the top plate after the equipment is placed.

[0013] A usage method of a maintenance auxiliary lifting and moving device in a narrow space includes the following steps:

[0014] The electric drive unit drives the mobile base station to move to the working position and fix it;

[0015] The electric drive unit drives the lifting support unit to rise. After receiving the removed heavy object, the lifting support unit descends to place the removed heavy object inside the mobile base station;

[0016] The electric drive unit drives the mobile base station to move to send out the removed heavy object.

[0017] Preferably, the mobile base station includes: a storage box, sliding grooves, rollers, and telescopic support columns;

[0018] The electric drive unit drives the rollers to move to the working position and opens the telescopic support columns to fix the device.

[0019] Preferably, the lifting support unit includes: a fixed tray, a plurality of lifting brackets, and electric telescopic push rods;

[0020] The electric drive unit drives the electric telescopic push rods to expand and contract to adjust the height of the lifting brackets so that the fixed tray can receive the removed heavy object.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention discloses an auxiliary lifting and moving device for maintenance in narrow spaces. In narrow spaces where workers cannot enter, an electric drive unit is used to control the movement of the mobile base so that it can automatically enter the working position in the narrow space. At the same time, an electric drive unit is used to control the lifting and lowering of the lifting support unit, which can support heavy objects at the working position. It can lift heavy objects below 100 KG during maintenance, greatly reducing the labor intensity of inspection and maintenance personnel and ensuring that the maintenance work is easy and convenient. At the same time, it provides convenience for transporting items in narrow spaces and reduces the dependence on tools. When it is impossible to move heavy objects and it is inconvenient to use tools during maintenance, this application can help maintenance personnel solve the problems of lifting and moving heavy objects, assist in completing inspection and maintenance tasks, and facilitate maintenance personnel to complete inspection and maintenance tasks time-saving, labor-saving and efficiently. It is not only efficient and fast but also safe and reliable, providing a technical support for modern management and safe operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the device of the present invention;

[0024] Figure 2 is a partially enlarged view of the mobile base of the present invention;

[0025] Figure 3 is a partially enlarged view of the lifting support unit of the present invention;

[0026] Figure 4 is a schematic structural diagram of the fixed tray of the present invention;

[0027] Figure 5 is a schematic structural diagram of the speed change gear set of the present invention;

[0028] Figure 6 is a schematic structural diagram of the top plate of the present invention.

[0029] Among them: 1 - mobile base; 2 - lifting bracket; 3 - electric telescopic push rod; 4 - magnetic suction head; 5 - roller; 6 - chute; 7 - top plate; 8 - fixed tray; 9 - telescopic support column; 10 - speed change gear set. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that the terms "first", "second", etc. in the description, claims and the above drawings of the present invention are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0032] The present invention will be further described in detail below with reference to the drawings:

[0033] The present invention mainly solves the problem that it is inconvenient to operate when facing narrow spaces during the inspection, repair and maintenance of various equipment. It is even more difficult when it is necessary to carry small heavy objects by manpower and the tools are inconvenient to enter. Either the procedures are cumbersome or the tools are inconvenient to enter. This brings many hidden dangers to the inspection and repair work. To solve such problems, a narrow-space inspection auxiliary lifting and moving device and its use method are specifically designed and manufactured. When there are conditions where heavy objects cannot be moved and it is inconvenient to use tools during the inspection, it can help the inspection personnel solve the problems of lifting and carrying heavy objects and assist in completing the inspection and repair tasks. It is a convenient technology that enables the inspection personnel to complete the inspection tasks in a time-saving, labor-saving and efficient manner. It is not only efficient and fast but also safe and reliable, providing a technical support for modern management and safe operation and maintenance. See Figure 1 , a narrow-space inspection auxiliary lifting and moving device, comprising a moving base 1 and a lifting support unit. The lifting support unit is arranged on the moving base 1. The moving base 1 and the lifting support unit are respectively connected to an electric drive unit to realize movement and lifting. The electric drive unit provides power for the moving base 1 and the lifting support unit, thereby realizing the automatic movement and lifting of the device. In the case where the staff cannot enter the narrow space, it can automatically enter the working position and provide a lifting assistance function to better assist in completing the inspection and repair tasks.

[0034] In some embodiments, see Figure 3 , the lifting support unit includes a plurality of lifting brackets 2 and electric telescopic push rods 3; the lifting brackets 2 and the electric telescopic push rods 3 are arranged around the moving base 1 and the middle position of the moving base 1 is hollow. Among them, one end of the electric telescopic push rod 3 is fixed on the moving base 1, and the other end is connected to the bottom side of the lifting bracket 2. And the electric telescopic push rod 3 is electrically connected to the electric drive unit, and the electric drive unit provides electric energy for the electric telescopic push rod 3 to realize the telescopic movement of the electric telescopic push rod 3. The other side of the bottom of the lifting bracket 2 is fixed on the moving base 1, and a fixed tray 8 is arranged at the top of the lifting support unit.

[0035] In some embodiments, refer to Figure 4 , the lifting bracket 2 is composed of several connecting rods hinged to form a telescopic structure. At the ends of the two bottom connecting rods, one is connected to the electric telescopic push rod 3, and the other is fixedly connected to the moving base 1. At the intersection of the two top connecting rods, a magnetic head 4 is fixed, and the fixed tray 8 is fixed on the magnetic head 4. When lifting the lifting bracket 2, different supports can be adjusted according to the specific height, so as to realize the balanced lifting of the bottom surface of the lifted object that is uneven. The magnetic head 4 at the top can prevent slipping. By turning the knob, the positive and negative poles can be offset to realize the working and loosening of the suction cup. At the same time, the fixed head can be replaced according to the shape of the workpiece and fixed with the lifting bracket 2 to improve the scope of use. When performing auxiliary inspection, repair and maintenance operations on small items that need to be lifted to prevent falling, and when manpower is unable to lift them, the product is moved to the bottom and supported by the fixed tray 8, which can effectively reduce the labor intensity of personnel and greatly facilitate the disassembly and repair operations of components.

[0036] In some embodiments, refer to Figure 2 , the middle position inside the moving base 1 is a storage box. A chute 6 is arranged around the storage box, and the lifting support unit is arranged inside the chute 6. A cross beam for installing rollers 5 is arranged at the bottom of the moving base 1, and telescopic support columns 9 are arranged around the bottom of the moving base 1. Both the rollers 5 and the telescopic support columns 9 are connected to the electric drive unit. When performing the lifting operation, the electric control will screw out and lock the four-corner telescopic support columns 9 to prevent the safety risk caused by the rotation of the bottom rollers 5.

[0037] In some embodiments, the electric drive unit includes: a DC battery and a motor. The motor is arranged at the bottom of the moving base 1 and electrically connected to the rollers 5. The DC battery is connected to the telescopic support columns 9, the lifting support unit and the motor to provide power.

[0038] Further preferably, the battery adopts a rechargeable battery, which increases the service life and is convenient for maintenance and management. At the same time, there is a backup power supply and it can be connected to external power for use.

[0039] In some embodiments, refer to Figure 5 , a speed-changing gear set 10 is arranged inside the roller 5. The power shaft of the roller 5 is connected to the output end of the speed-changing gear set 10, and the speed-changing gear set 10 is connected to the electric drive unit. The motor shaft is connected to the large gear of the reduction gear set 10, and the small gear is connected to the roller 5. Through the reduction gear set 10, the power of the motor shaft can be effectively reduced, the power consumption can be reduced, the efficiency can be improved, and the lifting load can be increased. During the movement of the roller, through the cooperation of the reduction gears, the load is relatively low. At the same time, driving the front wheels to rotate and driving the rear-stage rollers to move can reduce the output load of the motor. It is controlled by wireless remote control, which is beneficial for personnel not to enter and operate in a narrow space. If the space permits, manual boosting can be realized to facilitate control and prevent the risk of higher objects from reversing.

[0040] In some embodiments, refer to Figure 6The mobile base 1 is also provided with a top plate 7 inside, which is used to close the top after the equipment is placed. The top plate 7 is used to close the top of the hollow space after the equipment is placed, which not only protects the internal components but also effectively prevents erosion by wind and sand.

[0041] Further preferably, the remote controller adopts a portable integrated remote control panel, which optimizes the functional area for convenient operation and storage.

[0042] Compared with conventional transport trolleys, the present invention adopts a perfect combination of detachable, combinable, liftable and movable. The carrying capacity can be increased by increasing the number of groups according to the load, and it is suitable for inspection and maintenance assistance in various narrow spaces. It saves time and effort and is a powerful assistant for complex equipment maintenance.

[0043] The present application also discloses a method for using a narrow space maintenance auxiliary lifting and moving device, which is characterized by comprising the following steps:

[0044] The electric drive unit drives the mobile base 1 to move to the working position and fix it;

[0045] The electric drive unit drives the lifting support unit to rise, and after receiving the disassembled heavy object, the lifting support unit descends to place the disassembled heavy object in the mobile base 1;

[0046] The electric drive unit drives the mobile base 1 to move and send out the disassembled heavy objects.

[0047] In some embodiments, the mobile base 1 includes: a storage box, a slide 6, rollers 5 and a retractable support column 9;

[0048] The electric drive unit drives the roller 5 to move to the working position, and opens the retractable support column 9 for fixing the device.

[0049] Further preferably, the retractable support column 9 can adopt a small electric push rod to achieve electrically controlled retraction.

[0050] In some embodiments, the lifting support unit includes: a fixed tray 8, a plurality of lifting brackets 2 and an electric telescopic push rod 3;

[0051] The electric drive unit drives the electric telescopic push rod 3 to extend and retract, and adjusts the height of the lifting bracket 2 so that the fixed tray 8 can bear the disassembled heavy objects.

[0052] In summary, the present invention discloses a method for using an auxiliary lifting and moving device for maintenance in a narrow space. The electric drive unit is used to control the movement of the mobile base so that it can automatically enter the working position. At the same time, the electric drive unit is used to control the rise and fall of the lifting support unit, which can support heavy objects at the working position. It can lift heavy objects below 100KG during maintenance, greatly reducing the labor intensity of inspection and maintenance personnel and ensuring that the maintenance work is easy and convenient. At the same time, it provides convenience for transporting items in a narrow space and reduces the dependence on tools. When heavy objects cannot be moved and it is inconvenient to use tools during maintenance, this application can help maintenance personnel solve the problems of lifting and carrying heavy objects, assist in completing the inspection and maintenance tasks, and facilitate the maintenance personnel to complete the maintenance tasks time-saving, labor-saving and efficiently. It is not only efficient and fast but also safe and reliable, providing a technical support for modern management and safe operation and maintenance.

[0053]

Embodiment

[0054] A cross beam for installing rollers 5 is provided at the lower part of the mobile base 1. Six rollers 5 are installed on the cross beam for easy walking and load bearing. The rollers 5 are driven by a motor to drive a speed change gear set 10. After increasing the torque, it is transmitted to the power shaft to drive the rollers 5 to move. It works in a remote control operation mode; four chutes 6 are evenly distributed on the mobile base 1, and a lifting bracket 2 and a reciprocating electric telescopic push rod 3 are installed inside. Each electric telescopic push rod 3 is independently controlled by a small brushless motor and is equipped with a DC battery as the power source, and is remotely controlled to push and pull to drive the lifting bracket 2 to move up and down; a magnetic head 4 is provided at the top of the lifting bracket 2 to facilitate sucking and fixing the lifted object. In order to prevent the rollers 5 from rotating during work, telescopic support columns 9 are provided at the four corners and are lifted by threads to prevent sliding. The motor group is controlled by an integrated circuit, that is, forward, backward, and acceleration. A coding transmission and decoding reception circuit is adopted, which has high anti-interference performance and is convenient for remote control operation.

[0055] When the heavy object needs to be transported after being disassembled, lower the lifting bracket 2, place the heavy object on the base, and use the remote control to move the rollers 5 to the designated position for placement.

[0056] The present invention can realize remote control movement and remote control lifting. It can lift heavy objects below 100KG during maintenance, greatly reducing the labor intensity of inspection and maintenance personnel and ensuring that the maintenance work is easy and convenient. At the same time, it provides convenience for transporting items in a narrow space and reduces the dependence on tools. It can be promoted in some narrow space inspection and maintenance fields such as compressor maintenance and pump maintenance.

[0057] It should be noted that the size of the device of the present application is adjusted according to the actual working conditions to adapt to the actual working conditions, and is not limited herein; through model tests, we have optimized and transformed multiple unreasonable configurations and more convenient power transmission. During the overhaul and removal of the axial flow fan, not only the lifting problem is solved, but also the handling problem is solved, greatly reducing the manual labor workload, avoiding the safety of manual handling, using four-point support is more firm, and using separate control is more accurate.

[0058] The above content is only to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the claims of the present invention.

Claims

1. An auxiliary lifting and moving device for maintenance in a narrow space, characterized in that, It includes a mobile base station (1) and a lifting support unit. The lifting support unit is arranged on the mobile base station (1), and the mobile base station (1) and the lifting support unit are respectively connected to an electric drive unit to achieve movement and lifting.

2. The auxiliary lifting and moving device for maintenance in a narrow space according to claim 1, wherein, The lifting support unit includes a plurality of lifting brackets (2) and electric telescopic push rods (3); the lifting brackets (2) and the electric telescopic push rods (3) are arranged around the mobile base station (1) and the middle position of the mobile base station (1) is hollow. Among them, one end of the electric telescopic push rod (3) is fixed on the mobile base station (1), and the other end is connected to the bottom side of the lifting bracket (2). And the electric telescopic push rod (3) is electrically connected to the electric drive unit. The other side of the bottom of the lifting bracket (2) is fixed on the mobile base station (1), and a fixed tray (8) is arranged at the top of the lifting support unit.

3. The auxiliary lifting and moving device for maintenance in a narrow space according to claim 2, characterized in that, The lifting bracket (2) is composed of a plurality of connecting rods hinged to form a telescopic structure. At the ends of the two bottom connecting rods, one is connected to the electric telescopic push rod (3), and the other is fixedly connected to the mobile base station (1). A magnetic head (4) is fixed at the intersection of the two top connecting rods, and the fixed tray (8) is fixed on the magnetic head (4).

4. The auxiliary lifting and moving device for maintenance in a narrow space according to claim 1, wherein The middle position inside the mobile base station (1) is a storage box. Sliding grooves (6) are arranged around the storage box. The lifting support unit is arranged inside the sliding grooves (6). A cross beam for installing rollers (5) is arranged at the bottom of the mobile base station (1). Telescopic support columns (9) are arranged around the bottom of the mobile base station (1). Both the rollers (5) and the telescopic support columns (9) are connected to the electric drive unit.

5. The auxiliary lifting and moving device for maintenance in a narrow space according to claim 4, characterized in that, The electric drive unit includes: a DC battery and a motor. The motor is arranged at the bottom of the mobile base station (1) and is electrically connected to the rollers (5). The DC battery is connected to the telescopic support columns (9), the lifting support unit and the motor to provide power.

6. The auxiliary lifting and moving device for maintenance in a narrow space according to claim 4, characterized in that A speed change gear set (10) is arranged inside the roller (5). The power shaft of the roller (5) is connected to the output end of the speed change gear set (10), and the speed change gear set (10) is connected to the electric drive unit.

7. An auxiliary lifting and moving device for maintenance in a narrow space according to claim 4, characterized in that, A top plate (7) is also arranged inside the mobile base station (1) for closing the top with the top plate (7) after the equipment is placed.

8. A method for using the narrow space maintenance auxiliary lifting and moving device according to any one of claims 1 to 7, characterized in that, It includes the following steps: The electric drive unit drives the mobile base station (1) to move to the working position and fix it; The electric drive unit drives the lifting support unit to rise. After receiving the removed heavy object, the lifting support unit descends and places the removed heavy object inside the mobile base station (1); The electric drive unit drives the mobile base station (1) to move to send out the removed heavy object.

9. The usage method of an inspection and maintenance auxiliary lifting and moving device for narrow spaces according to claim 8, characterized in that, The mobile base station (1) includes: a storage box, sliding grooves (6), rollers (5) and telescopic support columns (9); The electric drive unit drives the rollers (5) to move to the working position and opens the telescopic support columns (9) for fixing the device.

10. The usage method of an inspection and maintenance auxiliary lifting and moving device for narrow spaces according to claim 8, characterized in that, The lifting support unit includes: a fixed tray (8), a plurality of lifting brackets (2) and electric telescopic push rods (3); The electric drive unit drives the electric telescopic push rod (3) to stretch and adjust the height of the lifting bracket (2) so that the fixed tray (8) receives the removed heavy object.

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