Pressure-bearing lifting device

Abstract

The utility model provides a pressure-bearing lifting device, which relates to the technical field of lifting equipment and comprises a pressure-bearing plate, a lifting hook and a rotary lifting mechanism. A middle hole is formed in the middle of the bearing plate and used for blocking a hole of the closed space and bearing lifting pressure. The lifting hook comprises a lifting rod at least partially provided with external threads, and a hook which is arranged at the lower end of the lifting rod and can penetrate through the hole and the middle hole to hook the cathode frame; the rotary lifting mechanism comprises two supporting columns arranged in parallel, a first nut fixedly connected to one ends of the two supporting columns and matched with the lifting rod in a threaded mode, and a connecting piece fixedly connected to the ends, away from the first nut, of the two supporting columns and allowing the lifting rod to penetrate through. And the rotary lifting mechanism is rotated, so that the cathode frame is lifted by the lifting hook. Therefore, the device has the advantages of being simple in structure, low in cost and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a pressure-bearing lifting device. Background Technology

[0002] When electrostatic precipitators are in operation for a long time, the entire frame may shift to one side, which will significantly affect the voltage rise of the electrostatic precipitator and lead to a decrease in dust removal efficiency. The electrostatic precipitator frame is typically divided into 16 sections, with each high-voltage switchgear corresponding to two sections (A and B sides), and each section has six pressure-bearing insulators. The cathode frame can be adjusted up and down by adjusting the pressure-bearing nuts on the pressure-bearing insulators. However, the pressure-bearing nuts are difficult to turn due to the weight of the cathode frame. Therefore, external force is needed to support and lift the cathode frame to allow the pressure-bearing nuts to be turned. In existing technology, each pressure-bearing insulator has a hole next to it for lifting the cathode frame.

[0003] Existing technologies typically require entering the electrostatic precipitator to weld temporary support points and using tools such as electric hoists to support the cathode frame. However, this approach requires entering the electric field and climbing to the top of the electrostatic precipitator, making construction extremely inconvenient and unsafe; furthermore, the tools used are complex and costly.

[0004] Therefore, a pressure-bearing lifting device that is simple in structure, low in cost, and easy to use needs to be designed. Utility Model Content

[0005] The purpose of this utility model is to provide a pressure-bearing lifting device to address the defects and deficiencies of the existing technology, thereby solving at least one of the aforementioned technical problems. It has the advantages of simple structure, low cost, and convenient use.

[0006] To achieve the above objectives, this utility model provides a pressure-bearing lifting device, comprising:

[0007] The pressure plate has a central hole to block the opening in the enclosed space and to withstand the lifting pressure.

[0008] The lifting hook includes a lifting rod that has at least a portion of external threads, and a hook disposed at the lower end of the lifting rod that can pass through the hole and the central hole to hook onto the cathode frame;

[0009] The rotary lifting mechanism includes two parallel support columns, a first nut fixed to one end of the two support columns and threadedly engaged with the lifting rod, and a connector fixed to the end of the two support columns away from the first nut and through which the lifting rod can pass.

[0010] The rotary lifting mechanism is rotated so that the lifting hook lifts the cathode frame.

[0011] Optionally, it also includes a force transmission component that cooperates with the support column to extend the lever arm of the rotary lifting mechanism.

[0012] Optionally, the pressure-bearing lifting device further includes a washer fitted onto the lifting rod of the lifting hook and located between the pressure plate and the first nut.

[0013] Optionally, the lower surface of the washer is also coated with lubricating oil.

[0014] Optionally, the force transmission component is separately configured from the rotary lifting mechanism and is inserted into the long rod between the two support columns during use.

[0015] Optionally, the long rod has anti-slip concave surfaces on both sides where it mates with the two support columns.

[0016] Optionally, the outer peripheral surface of the support column has anti-slip external threads.

[0017] Optionally, the connector is a second nut that is threaded into the lifting rod.

[0018] Optionally, the force transmission element is a handle fixed to the two support columns and arranged to extend away from each other.

[0019] Optionally, the pressure plate is a square steel plate, the lifting hook and / or the rotating lifting mechanism are made of steel, and the long rod is an iron rod.

[0020] Compared with the prior art, the advantages of this application are:

[0021] Since this pressure-bearing lifting device only includes a pressure plate, a lifting hook, and a rotating lifting mechanism, the lifting hook can be moved up and down relative to the pressure plate by rotating the rotating lifting mechanism, with the cooperation between the lifting hook and the nut of the rotating lifting mechanism, so as to lift the cathode frame and turn the pressure-bearing nut. This makes it simple in structure, low in cost, and easy to use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0024] Figure 2 This is an exploded view of the structure of Embodiment 1 of this utility model;

[0025] Figure 3This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0026] Explanation of reference numerals in the attached figures

[0027] 100 - Pressure-bearing lifting device;

[0028] 1-Pressure plate; o1-Central hole;

[0029] 2-Lifting hook; 21-Lifting rod; 22-Hook;

[0030] 3-Rotary lifting mechanism; 31-Support column; 32-First nut; 33-Second nut;

[0031] 4-Washer;

[0032] 5-Long rod; a-Anti-slip concave surface;

[0033] 6-Handle;

[0034] o2-holes. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "back," "side," and "circumferential" used in this utility model to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used to distinguish multiple parts or structures with the same or similar structures, and do not indicate any special limitation on the arrangement order or connection relationship.

[0037] Example 1

[0038] Please refer to Figures 1 to 3 This utility model embodiment provides a pressure-bearing lifting device 100 for lifting the cathode frame (not shown in the figure) of an electrostatic precipitator (not shown in the figure). The pressure-bearing lifting device 100 includes: a pressure plate 1, a lifting hook 2, and a rotating lifting mechanism 3.

[0039] The pressure plate 1 has a central hole o1 in the middle, which is used to block the hole o2 of the enclosed space and to withstand the lifting pressure. In this embodiment, the pressure plate 1 is a square steel plate.

[0040] The lifting hook 2 includes a lifting rod 21 with external threads at least partially, and a hook 22 disposed at the lower end of the lifting rod 21, which can pass through the hole o2 and the central hole o1 to hook the cathode frame. Specifically, in this embodiment, the lifting rod 21 of the lifting hook 2 is a lead screw structure with external threads, and the hook 22 is integrally formed and disposed at the lower end of the lifting rod 21.

[0041] The rotary lifting mechanism 3 includes two support columns 31, a first nut 32, and a connecting member. The two support columns 31 are arranged in parallel; the first nut 32 is fixed to one end of the two support columns 31 and threadedly engages with the lifting rod 21; the connecting member is fixed to the end of the two support columns 31 away from the first nut 32 and allows the lifting rod 21 to pass through. Specifically, the first nut 32 and the connecting member are both welded between the two support columns 31.

[0042] Specifically, the rotating lifting mechanism 3 is rotated to lift the cathode frame using the lifting hook 2. Understandably, since the hook 22 of the lifting hook 2 is hooked onto the cathode frame, the lifting hook 2 cannot move axially. Therefore, when the rotating lifting mechanism 3 is rotated in one direction, the first nut 32 of the rotating lifting mechanism 3 causes the lifting hook 2 to move upward, thus lifting the cathode frame.

[0043] Since the pressure-bearing lifting device 100 only includes a pressure plate 1, a lifting hook 2, and a rotating lifting mechanism 3, the lifting hook 2 can move up and down relative to the pressure plate by rotating the rotating lifting mechanism 3, with the cooperation between the lifting hook 2 and the nut of the rotating lifting mechanism 3, so as to lift the cathode frame and twist the pressure-bearing nut. Thus, it has the advantages of simple structure, low cost, and convenient use.

[0044] To make rotating the lifting mechanism 3 less strenuous, optionally, please refer to... Figure 2 In this embodiment, the pressure-bearing lifting device 100 also includes a force transmission component that cooperates with the support column 31 to extend the lever arm of the rotating lifting mechanism 3.

[0045] To avoid wear on the first nut 32, optionally, please refer to... Figure 2 In this embodiment, the pressure-bearing lifting device 100 also includes a washer 4 sleeved on the lifting rod 21 of the lifting hook 2 and located between the pressure plate 1 and the first nut 32. In order to reduce the contact friction between the washer 4 and the pressure plate 1 and make it easier to rotate, the lower surface of the washer 4 can also be coated with lubricating oil.

[0046] Alternatively, please refer to Figure 1 and Figure 2In this embodiment, the force transmission component is configured separately from the rotary lifting mechanism 3, and is inserted into the long rod 5 between the two support columns 31 during use.

[0047] To increase the friction between the long rod 5 and the two support columns 31 and prevent slippage during force application, optionally, please refer to... Figure 2 In this embodiment, the long rod 5 has anti-slip concave surfaces a on both sides where it mates with the two support columns 31. Furthermore, the outer circumferential surface of the support column 31 has anti-slip external threads.

[0048] Alternatively, please refer to Figure 2 In this embodiment, the connecting component is a second nut 33 that is threaded into the lifting rod 21. Specifically, the second nut 33 can be the same size as the first nut 32.

[0049] To ensure the lifting hook 2, the rotating lifting mechanism 3, and the long rod 5 have high strength, optionally in this embodiment, the lifting hook 2 and / or the rotating lifting mechanism 3 are made of steel; and the long rod 5 is an iron rod.

[0050] Example 2

[0051] Please refer to Figure 3 This embodiment is basically the same as Embodiment 1, except for the structure of the force transmission component. That is, in this embodiment, the force transmission component is a handle 6 that is fixed to two support columns 31 and extends away from each other.

[0052] The working process and principle / assembly steps of this utility model embodiment are roughly as follows:

[0053] During operation, the lifting hook 2 is first passed through the central hole o1 and the hole o2 of the pressure plate 1 to hook into the crossbeam or reserved hole of the cathode frame (not shown in the figure); then the pressure plate 1 is placed above the hole o2 of the enclosed space; next, the washer 4 is put into the lifting rod 21 of the lifting hook 2; then the rotating lifting mechanism 3 is screwed into the lifting rod 21 through the first nut 32, and its bottom end abuts against the upper surface of the pressure plate 1; the long rod 5 is inserted between the two support columns 31, and the long rod 5 is pushed or pulled, so that the long rod 5 drives the rotating lifting mechanism 3 to rotate, thereby causing the lifting hook 2 to move up and down relative to the pressure plate, so as to lift the cathode frame. During operation, the above-mentioned pressure lifting device 100 needs to be set up simultaneously next to multiple pressure insulators. Multiple pressure lifting devices 100 work simultaneously to lift the cathode frame to a certain height so that the pressure nut can be turned.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pressure-bearing lifting device for lifting a cathode frame; characterized in that, include: The pressure plate (1) has a central hole (o1) in the middle, which is used to block the hole (o2) of the enclosed space and to withstand the lifting pressure; The lifting hook (2) includes a lifting rod (21) having at least a portion of external threads, and a hook (22) disposed at the lower end of the lifting rod (21) and passable through the hole (o2) and the central hole (o1) to hook onto the cathode frame; The rotary lifting mechanism (3) includes two parallel support columns (31), a first nut (32) fixed to one end of the two support columns (31) and threadedly engaged with the lifting rod (21), and a connector fixed to one end of the two support columns (31) away from the first nut (32) and through which the lifting rod (21) can pass. The rotating lifting mechanism (3) is rotated so that the lifting hook (2) lifts the cathode frame.

2. The pressure-bearing lifting device as described in claim 1, characterized in that, It also includes a force transmission component that cooperates with the support column (31) to extend the lever arm of the rotary lifting mechanism (3).

3. The pressure-bearing lifting device as described in claim 1, characterized in that, It also includes a washer (4) fitted on the lifting rod (21) of the lifting hook (2) and located between the pressure plate (1) and the first nut (32).

4. The pressure-bearing lifting device as described in claim 3, characterized in that, The lower surface of the washer (4) is also coated with lubricating oil.

5. The pressure-bearing lifting device as described in claim 2, characterized in that, The force transmission component is separately configured from the rotary lifting mechanism (3) and is inserted into the long rod (5) between the two support columns (31) during use.

6. The pressure-bearing lifting device as described in claim 5, characterized in that, The long rod (5) has anti-slip concave surfaces (a) on both sides that cooperate with the two support columns (31).

7. The pressure-bearing lifting device as described in claim 5, characterized in that, The outer circumferential surface of the support column (31) has anti-slip external threads.

8. The pressure-bearing lifting device as described in claim 1, characterized in that, The connecting component is a second nut (33) that is threadedly engaged with the lifting rod (21).

9. The pressure-bearing lifting device as described in claim 2, characterized in that, The force transmission component is a handle (6) that is fixed to the two support columns (31) and extends away from each other.

10. The pressure-bearing lifting device as described in claim 5, characterized in that, The pressure plate (1) is a square steel plate, the lifting hook (2) and / or the rotating lifting mechanism (3) are made of steel; the long rod (5) is an iron rod.

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