A power utility hoist
By installing a lubrication component in the hoisting device, the problem of difficulty in injecting lubricating oil between the pulley and the support rod is solved, achieving uniform application of lubricating oil and extending the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI TANGCE TESTING TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-29
AI Technical Summary
In hoisting equipment, it is difficult to inject lubricating oil between the pulley and the support rod, which leads to increased friction and affects the service life.
A lubrication assembly was designed, including a lubrication groove and a lubrication roller. Lubricating oil is injected into the lubrication groove through an oil inlet mechanism, and the lubrication roller rotates with the pulley and applies the lubricating oil to the support rod, simplifying the lubricating oil injection process.
This ensures even application of lubricating oil, reduces friction between the pulley and the support rod, and extends the service life of the device.
Smart Images

Figure CN224298713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting device technology, and in particular to a hoisting device for power facilities. Background Technology
[0002] The hoisting device is used to lift transformers during the installation of power facilities. The hoisting device consists of a crane, fixing components, pulleys, hooks, and wire ropes. When hoisting a small transformer, the worker first fixes the sling to the transformer, then connects the pulleys on the fixing components to the boom of the crane through the wire rope, and then hangs the sling on the hook. The crane then lifts the transformer to the installation area for installation.
[0003] In their daily work, the inventors discovered that when using hoisting equipment, in order to reduce excessive friction between the wire rope and the pulley at a fixed position, the pulley is generally set as a movable pulley. However, due to prolonged use, the lubricating oil between the pulley and the support rod that supports it is depleted, requiring workers to inject lubricating oil between them. However, the gap between the support rod and the pulley is small, making it difficult to inject lubricating oil, which may make it difficult to inject lubricating oil between the support rod and the pulley. Utility Model Content
[0004] The purpose of this utility model is to solve the problem that, in actual use, in order to reduce excessive friction between the wire rope and the pulley at a fixed position, the pulley is generally set as a movable pulley. However, due to long-term use, the lubricating oil between the pulley and the support rod supporting it is exhausted, so workers need to inject lubricating oil between the two. However, the gap between the support rod and the pulley is small, making it difficult to inject lubricating oil, which may lead to difficulties in injecting lubricating oil between the support rod and the pulley. Therefore, a power facility hoisting device is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a power facility hoisting device, comprising a fixing component, wherein the inner wall of the fixing component is provided with a hook rotatably connected by means of a rotating shaft, a support rod is fixedly connected between the two sides of the inner wall of the fixing component, a pulley is rotatably connected to the arc surface of the support rod, a lubrication assembly is provided on one side of the pulley, the lubrication assembly includes a lubrication groove formed in the inner wall of the pulley, and a lubrication roller is rotatably connected to the inner wall of the lubrication groove.
[0006] The effect achieved by the above components is as follows: by setting up a lubrication assembly, when injecting lubricating oil between the support rod and the pulley, the worker injects the lubricating oil into the lubrication groove through the oil inlet mechanism, and then manually rotates the pulley. The lubrication roller follows the rotation of the pulley, and the lubrication roller contacts the support rod, so that the lubrication roller rotates and carries out the lubricating oil to be evenly applied to the support rod, thereby facilitating the injection of lubricating oil between the support rod and the pulley as much as possible.
[0007] Preferably, the pulley has an oil inlet chamber inside, and an oil inlet hole is provided between the oil inlet chamber and the lubrication groove.
[0008] The effect achieved by the above components is to inject lubricating oil into the oil inlet chamber, and then into the lubrication groove through the oil inlet hole.
[0009] Preferably, an oil inlet plug is fixedly connected to the inner wall of the oil inlet chamber, and the inner wall of the oil inlet plug is provided with a plug.
[0010] The effect achieved by the above components is that the worker inserts the oil nozzle of the lubricating oil can into the oil inlet plug, pushes open the plug, and pours the oil can into the oil inlet chamber.
[0011] Preferably, a spring is fixedly connected to the left end of the plug, and the other end of the spring is fixed to the oil inlet plug.
[0012] The effect achieved by the above components is as follows: after the worker finishes adding lubricating oil to the lubrication tank, he pulls out the oil can, and the spring returns to its original state from the stretched state, taking the plug back into the oil inlet plug.
[0013] Preferably, the inner wall of the pulley is provided with a protective component, which includes a first protective shell and a second protective shell disposed on the inner wall of the pulley.
[0014] The effect achieved by the above components is as follows: by setting up protective components, the first protective shell and the second protective shell are fixed inside the pulley, so that the wire rope comes into contact with the first protective shell and the second protective shell, thereby reducing the friction of the wire rope on the pulley.
[0015] Preferably, the first protective shell has fixing grooves at both ends, and the second protective shell has fixing blocks fixedly connected to both ends, with protrusions on the surface of the fixing blocks.
[0016] The effect achieved by the above components is as follows: drag the first protective shell and the second protective shell into the pulley, and let the fixing block insert into the fixing groove, thereby fixing the first protective shell and the second protective shell into the pulley.
[0017] Preferably, the inner wall of the hook is provided with a safety bar that is rotatably connected by a pivot, the front of the hook is provided with a pin that is inserted into the safety bar, and the arc surface of the pin is provided with a protrusion.
[0018] The effect achieved by the above components is that after the worker places the sling on the hook, then rotates the safety bar, and then uses a pin to secure the safety bar, thereby potentially preventing the sling from falling off the hook.
[0019] In summary, the beneficial effects of this utility model are as follows:
[0020] In this invention, by setting up a lubrication component, when injecting lubricating oil between the support rod and the pulley, the worker injects the lubricating oil into the lubrication groove through the oil inlet mechanism, and then manually rotates the pulley. The lubrication roller follows the rotation of the pulley, and the lubrication roller contacts the support rod, thereby rotating the lubrication roller and carrying out the lubricating oil to be evenly applied to the support rod, thus achieving the effect of facilitating the injection of lubricating oil between the support rod and the pulley as much as possible. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a three-dimensional structural schematic diagram of the cross-section of the lubrication component of this utility model;
[0023] Figure 3 This is a three-dimensional structural diagram of the explosion protection component of this utility model;
[0024] Figure 4 This utility model Figure 2 An enlarged three-dimensional structural diagram of A in the middle.
[0025] Legend: 1. Fixing component; 2. Lubrication assembly; 3. Protective assembly; 4. Safety bar; 5. Pin; 6. Pulley; 7. Hook; 8. Support rod; 21. Lubrication groove; 22. Lubrication roller; 23. Oil inlet chamber; 24. Oil inlet hole; 25. Oil inlet plug; 26. Plug; 27. Spring; 31. First protective shell; 32. Second protective shell; 33. Fixing block; 34. Fixing groove. Detailed Implementation
[0026] Reference Figure 1 As shown, this utility model provides a technical solution: a power facility hoisting device includes a fixing component 1, the inner wall of the fixing component 1 is provided with a hook 7 rotatably connected by a rotating shaft, a support rod 8 is fixedly connected between the two sides of the inner wall of the fixing component 1, a pulley 6 is rotatably connected to the arc surface of the support rod 8, and a lubrication component 2 is provided on one side of the pulley 6.
[0027] Reference Figure 2 and Figure 4As shown, in this embodiment: the lubrication assembly 2 includes a lubrication groove 21 formed on the inner wall of the pulley 6. A lubrication roller 22 is rotatably connected to the inner wall of the lubrication groove 21. By setting the lubrication assembly 2, when injecting lubricating oil between the support rod 8 and the pulley 6, the worker injects lubricating oil into the lubrication groove 21 through the oil inlet mechanism, and then manually rotates the pulley 6. The lubrication roller 22 rotates with the pulley 6, and the lubrication roller 22 contacts the support rod 8, thereby rotating and carrying out lubricating oil to evenly coat the support rod 8, thus facilitating the injection of lubricating oil between the support rod 8 and the pulley 6 as much as possible. The pulley 6 has an oil inlet chamber 23 inside. An oil inlet hole 24 is provided between the lubrication chamber 23 and the lubrication groove 21. Lubricating oil is injected into the oil inlet chamber 23, passes through the oil inlet hole 24, and enters the lubrication groove 21. An oil inlet plug 25 is fixedly connected to the inner wall of the oil inlet chamber 23. A plug 26 is provided on the inner wall of the oil inlet plug 25. The worker inserts the oil nozzle of the lubricating oil can into the oil inlet plug 25, pushes open the plug 26, and pours the oil can to inject the lubricating oil into the oil inlet chamber 23. A spring 27 is fixedly connected to the left end of the plug 26. The other end of the spring 27 is fixed to the oil inlet plug 25. After the worker finishes injecting lubricating oil into the lubrication groove 21, he pulls out the oil can, and the spring 27 returns to its original state from the stretched state, taking the plug 26 back into the oil inlet plug 25.
[0028] Reference Figure 1 and Figure 3 As shown in this embodiment: a protective component 3 is provided on the inner wall of the pulley 6. The protective component 3 includes a first protective shell 31 and a second protective shell 32 disposed on the inner wall of the pulley 6. By providing the protective component 3, the first protective shell 31 and the second protective shell 32 are fixed inside the pulley 6, so that the wire rope contacts the first protective shell 31 and the second protective shell 32, thereby reducing the friction of the wire rope on the pulley 6. The first protective shell 31 has fixing grooves 34 at both ends, and the second protective shell 32 is fixedly connected to fixing blocks 33 at both ends. The surface of the fixing blocks 33 is provided with protrusions. The first protective shell 31 and the second protective shell 32 are dragged and placed into the pulley 6, and the fixing block 33 is inserted into the fixing groove 34, thereby fixing the first protective shell 31 and the second protective shell 32 into the pulley 6. The inner wall of the hook 7 is provided with a safety bar 4 that is rotatably connected by a rotating shaft. The front of the hook 7 is provided with a pin 5, which is inserted into the safety bar 4. The arc surface of the pin 5 is provided with a protrusion. After the worker puts the sling into the hook 7, the safety bar 4 is rotated, and then the pin 5 is used to fix the safety bar 4, thereby preventing the sling from falling off the hook 7.
[0029] Working principle:
[0030] When hoisting the small transformer, the worker first drags the first protective shell 31 and the second protective shell 32 into the pulley 6, and inserts the fixing block 33 into the fixing groove 34, thereby fixing the first protective shell 31 and the second protective shell 32 into the pulley 6. Then, the sling is fixedly connected to the transformer. Next, the pulley 6 on the fixing part 1 is connected to the boom of the crane through the wire rope, and the sling is hung on the hook 7. Finally, the safety bar 4 is rotated, and the safety bar 4 is fixed with the pin 5. The crane lifts the transformer and installs it in the designated area. Lubrication is injected between the support rod 8 and the pulley 6. During lubrication, the worker inserts the oil nozzle of the lubricating oil can into the oil inlet plug 25, pushes open the plug 26, and pours the oil can into the oil inlet chamber 23. The oil then passes through the oil inlet hole 24 and enters the lubrication groove 21. After the lubrication groove 21 is filled with lubricating oil, the worker pulls out the oil can, and the spring 27 returns to its original position from the stretched state, taking the plug 26 back into the oil inlet plug 25. Then, the worker manually rotates the pulley 6, and the lubrication roller 22 rotates with the pulley 6. The lubrication roller 22 then contacts the support rod 8, causing the lubrication roller 22 to rotate and carry the lubricating oil out to be evenly applied to the support rod 8.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.
Claims
1. A hoisting device for power facilities, comprising a fixing component (1), characterized in that: The inner wall of the fixing member (1) is provided with a hook (7) that is rotatably connected by a rotating shaft. A support rod (8) is fixedly connected between the two sides of the inner wall of the fixing member (1). A pulley (6) is rotatably connected to the arc surface of the support rod (8). A lubrication assembly (2) is provided on one side of the pulley (6). The lubrication assembly (2) includes a lubrication groove (21) opened on the inner wall of the pulley (6). A lubrication roller (22) is rotatably connected to the inner wall of the lubrication groove (21).
2. The power facility hoisting device according to claim 1, characterized in that: The pulley (6) has an oil inlet chamber (23) inside, and an oil inlet hole (24) is provided between the oil inlet chamber (23) and the lubrication groove (21).
3. The power facility hoisting device according to claim 2, characterized in that: An oil inlet plug (25) is fixedly connected to the inner wall of the oil inlet chamber (23), and a plug (26) is provided on the inner wall of the oil inlet plug (25).
4. A power facility hoisting device according to claim 3, characterized in that: A spring (27) is fixedly connected to the left end of the plug (26), and the other end of the spring (27) is fixed to the oil inlet plug (25).
5. A power facility hoisting device according to claim 4, characterized in that: The inner wall of the pulley (6) is provided with a protective component (3), which includes a first protective shell (31) and a second protective shell (32) disposed on the inner wall of the pulley (6).
6. A power facility hoisting device according to claim 5, characterized in that: The first protective shell (31) has fixing grooves (34) at both ends, and the second protective shell (32) has fixing blocks (33) fixedly connected to both ends, and the surface of the fixing blocks (33) is provided with protrusions.
7. A power facility hoisting device according to claim 6, characterized in that: The inner wall of the hook (7) is provided with a safety bar (4) that is rotatably connected by a pivot. A pin (5) is inserted into the front of the hook (7). The pin (5) is inserted into the safety bar (4). The arc surface of the pin (5) is provided with a protrusion.